xref: /openbmc/linux/net/mac80211/debugfs_netdev.c (revision 462cd772)
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) 2020-2022 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 
25 static 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 
44 static 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)			\
68 static 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 
81 #define IEEE80211_IF_FMT_HEXARRAY(name, field)				\
82 static ssize_t ieee80211_if_fmt_##name(					\
83 	const struct ieee80211_sub_if_data *sdata,			\
84 	char *buf, int buflen)						\
85 {									\
86 	char *p = buf;							\
87 	int i;								\
88 	for (i = 0; i < sizeof(sdata->field); i++) {			\
89 		p += scnprintf(p, buflen + buf - p, "%.2x ",		\
90 				 sdata->field[i]);			\
91 	}								\
92 	p += scnprintf(p, buflen + buf - p, "\n");			\
93 	return p - buf;							\
94 }
95 
96 #define IEEE80211_IF_FMT_ATOMIC(name, field)				\
97 static ssize_t ieee80211_if_fmt_##name(					\
98 	const struct ieee80211_sub_if_data *sdata,			\
99 	char *buf, int buflen)						\
100 {									\
101 	return scnprintf(buf, buflen, "%d\n", atomic_read(&sdata->field));\
102 }
103 
104 #define IEEE80211_IF_FMT_MAC(name, field)				\
105 static ssize_t ieee80211_if_fmt_##name(					\
106 	const struct ieee80211_sub_if_data *sdata, char *buf,		\
107 	int buflen)							\
108 {									\
109 	return scnprintf(buf, buflen, "%pM\n", sdata->field);		\
110 }
111 
112 #define IEEE80211_IF_FMT_JIFFIES_TO_MS(name, field)			\
113 static ssize_t ieee80211_if_fmt_##name(					\
114 	const struct ieee80211_sub_if_data *sdata,			\
115 	char *buf, int buflen)						\
116 {									\
117 	return scnprintf(buf, buflen, "%d\n",				\
118 			 jiffies_to_msecs(sdata->field));		\
119 }
120 
121 #define _IEEE80211_IF_FILE_OPS(name, _read, _write)			\
122 static const struct file_operations name##_ops = {			\
123 	.read = (_read),						\
124 	.write = (_write),						\
125 	.open = simple_open,						\
126 	.llseek = generic_file_llseek,					\
127 }
128 
129 #define _IEEE80211_IF_FILE_R_FN(name)					\
130 static ssize_t ieee80211_if_read_##name(struct file *file,		\
131 					char __user *userbuf,		\
132 					size_t count, loff_t *ppos)	\
133 {									\
134 	return ieee80211_if_read(file->private_data,			\
135 				 userbuf, count, ppos,			\
136 				 ieee80211_if_fmt_##name);		\
137 }
138 
139 #define _IEEE80211_IF_FILE_W_FN(name)					\
140 static ssize_t ieee80211_if_write_##name(struct file *file,		\
141 					 const char __user *userbuf,	\
142 					 size_t count, loff_t *ppos)	\
143 {									\
144 	return ieee80211_if_write(file->private_data, userbuf, count,	\
145 				  ppos, ieee80211_if_parse_##name);	\
146 }
147 
148 #define IEEE80211_IF_FILE_R(name)					\
149 	_IEEE80211_IF_FILE_R_FN(name)					\
150 	_IEEE80211_IF_FILE_OPS(name, ieee80211_if_read_##name, NULL)
151 
152 #define IEEE80211_IF_FILE_W(name)					\
153 	_IEEE80211_IF_FILE_W_FN(name)					\
154 	_IEEE80211_IF_FILE_OPS(name, NULL, ieee80211_if_write_##name)
155 
156 #define IEEE80211_IF_FILE_RW(name)					\
157 	_IEEE80211_IF_FILE_R_FN(name)					\
158 	_IEEE80211_IF_FILE_W_FN(name)					\
159 	_IEEE80211_IF_FILE_OPS(name, ieee80211_if_read_##name,		\
160 			       ieee80211_if_write_##name)
161 
162 #define IEEE80211_IF_FILE(name, field, format)				\
163 	IEEE80211_IF_FMT_##format(name, field)				\
164 	IEEE80211_IF_FILE_R(name)
165 
166 /* common attributes */
167 IEEE80211_IF_FILE(rc_rateidx_mask_2ghz, rc_rateidx_mask[NL80211_BAND_2GHZ],
168 		  HEX);
169 IEEE80211_IF_FILE(rc_rateidx_mask_5ghz, rc_rateidx_mask[NL80211_BAND_5GHZ],
170 		  HEX);
171 IEEE80211_IF_FILE(rc_rateidx_mcs_mask_2ghz,
172 		  rc_rateidx_mcs_mask[NL80211_BAND_2GHZ], HEXARRAY);
173 IEEE80211_IF_FILE(rc_rateidx_mcs_mask_5ghz,
174 		  rc_rateidx_mcs_mask[NL80211_BAND_5GHZ], HEXARRAY);
175 
176 static ssize_t ieee80211_if_fmt_rc_rateidx_vht_mcs_mask_2ghz(
177 				const struct ieee80211_sub_if_data *sdata,
178 				char *buf, int buflen)
179 {
180 	int i, len = 0;
181 	const u16 *mask = sdata->rc_rateidx_vht_mcs_mask[NL80211_BAND_2GHZ];
182 
183 	for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
184 		len += scnprintf(buf + len, buflen - len, "%04x ", mask[i]);
185 	len += scnprintf(buf + len, buflen - len, "\n");
186 
187 	return len;
188 }
189 
190 IEEE80211_IF_FILE_R(rc_rateidx_vht_mcs_mask_2ghz);
191 
192 static ssize_t ieee80211_if_fmt_rc_rateidx_vht_mcs_mask_5ghz(
193 				const struct ieee80211_sub_if_data *sdata,
194 				char *buf, int buflen)
195 {
196 	int i, len = 0;
197 	const u16 *mask = sdata->rc_rateidx_vht_mcs_mask[NL80211_BAND_5GHZ];
198 
199 	for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
200 		len += scnprintf(buf + len, buflen - len, "%04x ", mask[i]);
201 	len += scnprintf(buf + len, buflen - len, "\n");
202 
203 	return len;
204 }
205 
206 IEEE80211_IF_FILE_R(rc_rateidx_vht_mcs_mask_5ghz);
207 
208 IEEE80211_IF_FILE(flags, flags, HEX);
209 IEEE80211_IF_FILE(state, state, LHEX);
210 IEEE80211_IF_FILE(txpower, vif.bss_conf.txpower, DEC);
211 IEEE80211_IF_FILE(ap_power_level, deflink.ap_power_level, DEC);
212 IEEE80211_IF_FILE(user_power_level, deflink.user_power_level, DEC);
213 
214 static ssize_t
215 ieee80211_if_fmt_hw_queues(const struct ieee80211_sub_if_data *sdata,
216 			   char *buf, int buflen)
217 {
218 	int len;
219 
220 	len = scnprintf(buf, buflen, "AC queues: VO:%d VI:%d BE:%d BK:%d\n",
221 			sdata->vif.hw_queue[IEEE80211_AC_VO],
222 			sdata->vif.hw_queue[IEEE80211_AC_VI],
223 			sdata->vif.hw_queue[IEEE80211_AC_BE],
224 			sdata->vif.hw_queue[IEEE80211_AC_BK]);
225 
226 	if (sdata->vif.type == NL80211_IFTYPE_AP)
227 		len += scnprintf(buf + len, buflen - len, "cab queue: %d\n",
228 				 sdata->vif.cab_queue);
229 
230 	return len;
231 }
232 IEEE80211_IF_FILE_R(hw_queues);
233 
234 /* STA attributes */
235 IEEE80211_IF_FILE(bssid, deflink.u.mgd.bssid, MAC);
236 IEEE80211_IF_FILE(aid, vif.cfg.aid, DEC);
237 IEEE80211_IF_FILE(beacon_timeout, u.mgd.beacon_timeout, JIFFIES_TO_MS);
238 
239 static int ieee80211_set_smps(struct ieee80211_sub_if_data *sdata,
240 			      enum ieee80211_smps_mode smps_mode)
241 {
242 	struct ieee80211_local *local = sdata->local;
243 	int err;
244 
245 	if (!(local->hw.wiphy->features & NL80211_FEATURE_STATIC_SMPS) &&
246 	    smps_mode == IEEE80211_SMPS_STATIC)
247 		return -EINVAL;
248 
249 	/* auto should be dynamic if in PS mode */
250 	if (!(local->hw.wiphy->features & NL80211_FEATURE_DYNAMIC_SMPS) &&
251 	    (smps_mode == IEEE80211_SMPS_DYNAMIC ||
252 	     smps_mode == IEEE80211_SMPS_AUTOMATIC))
253 		return -EINVAL;
254 
255 	if (sdata->vif.type != NL80211_IFTYPE_STATION)
256 		return -EOPNOTSUPP;
257 
258 	sdata_lock(sdata);
259 	err = __ieee80211_request_smps_mgd(sdata, &sdata->deflink, smps_mode);
260 	sdata_unlock(sdata);
261 
262 	return err;
263 }
264 
265 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
266 	[IEEE80211_SMPS_AUTOMATIC] = "auto",
267 	[IEEE80211_SMPS_OFF] = "off",
268 	[IEEE80211_SMPS_STATIC] = "static",
269 	[IEEE80211_SMPS_DYNAMIC] = "dynamic",
270 };
271 
272 static ssize_t ieee80211_if_fmt_smps(const struct ieee80211_sub_if_data *sdata,
273 				     char *buf, int buflen)
274 {
275 	if (sdata->vif.type == NL80211_IFTYPE_STATION)
276 		return snprintf(buf, buflen, "request: %s\nused: %s\n",
277 				smps_modes[sdata->deflink.u.mgd.req_smps],
278 				smps_modes[sdata->deflink.smps_mode]);
279 	return -EINVAL;
280 }
281 
282 static ssize_t ieee80211_if_parse_smps(struct ieee80211_sub_if_data *sdata,
283 				       const char *buf, int buflen)
284 {
285 	enum ieee80211_smps_mode mode;
286 
287 	for (mode = 0; mode < IEEE80211_SMPS_NUM_MODES; mode++) {
288 		if (strncmp(buf, smps_modes[mode], buflen) == 0) {
289 			int err = ieee80211_set_smps(sdata, mode);
290 			if (!err)
291 				return buflen;
292 			return err;
293 		}
294 	}
295 
296 	return -EINVAL;
297 }
298 IEEE80211_IF_FILE_RW(smps);
299 
300 static ssize_t ieee80211_if_parse_tkip_mic_test(
301 	struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
302 {
303 	struct ieee80211_local *local = sdata->local;
304 	u8 addr[ETH_ALEN];
305 	struct sk_buff *skb;
306 	struct ieee80211_hdr *hdr;
307 	__le16 fc;
308 
309 	if (!mac_pton(buf, addr))
310 		return -EINVAL;
311 
312 	if (!ieee80211_sdata_running(sdata))
313 		return -ENOTCONN;
314 
315 	skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24 + 100);
316 	if (!skb)
317 		return -ENOMEM;
318 	skb_reserve(skb, local->hw.extra_tx_headroom);
319 
320 	hdr = skb_put_zero(skb, 24);
321 	fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA);
322 
323 	switch (sdata->vif.type) {
324 	case NL80211_IFTYPE_AP:
325 		fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS);
326 		/* DA BSSID SA */
327 		memcpy(hdr->addr1, addr, ETH_ALEN);
328 		memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
329 		memcpy(hdr->addr3, sdata->vif.addr, ETH_ALEN);
330 		break;
331 	case NL80211_IFTYPE_STATION:
332 		fc |= cpu_to_le16(IEEE80211_FCTL_TODS);
333 		/* BSSID SA DA */
334 		sdata_lock(sdata);
335 		if (!sdata->u.mgd.associated) {
336 			sdata_unlock(sdata);
337 			dev_kfree_skb(skb);
338 			return -ENOTCONN;
339 		}
340 		memcpy(hdr->addr1, sdata->deflink.u.mgd.bssid, ETH_ALEN);
341 		memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
342 		memcpy(hdr->addr3, addr, ETH_ALEN);
343 		sdata_unlock(sdata);
344 		break;
345 	default:
346 		dev_kfree_skb(skb);
347 		return -EOPNOTSUPP;
348 	}
349 	hdr->frame_control = fc;
350 
351 	/*
352 	 * Add some length to the test frame to make it look bit more valid.
353 	 * The exact contents does not matter since the recipient is required
354 	 * to drop this because of the Michael MIC failure.
355 	 */
356 	skb_put_zero(skb, 50);
357 
358 	IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_TKIP_MIC_FAILURE;
359 
360 	ieee80211_tx_skb(sdata, skb);
361 
362 	return buflen;
363 }
364 IEEE80211_IF_FILE_W(tkip_mic_test);
365 
366 static ssize_t ieee80211_if_parse_beacon_loss(
367 	struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
368 {
369 	if (!ieee80211_sdata_running(sdata) || !sdata->vif.cfg.assoc)
370 		return -ENOTCONN;
371 
372 	ieee80211_beacon_loss(&sdata->vif);
373 
374 	return buflen;
375 }
376 IEEE80211_IF_FILE_W(beacon_loss);
377 
378 static ssize_t ieee80211_if_fmt_uapsd_queues(
379 	const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
380 {
381 	const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
382 
383 	return snprintf(buf, buflen, "0x%x\n", ifmgd->uapsd_queues);
384 }
385 
386 static ssize_t ieee80211_if_parse_uapsd_queues(
387 	struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
388 {
389 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
390 	u8 val;
391 	int ret;
392 
393 	ret = kstrtou8(buf, 0, &val);
394 	if (ret)
395 		return ret;
396 
397 	if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
398 		return -ERANGE;
399 
400 	ifmgd->uapsd_queues = val;
401 
402 	return buflen;
403 }
404 IEEE80211_IF_FILE_RW(uapsd_queues);
405 
406 static ssize_t ieee80211_if_fmt_uapsd_max_sp_len(
407 	const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
408 {
409 	const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
410 
411 	return snprintf(buf, buflen, "0x%x\n", ifmgd->uapsd_max_sp_len);
412 }
413 
414 static ssize_t ieee80211_if_parse_uapsd_max_sp_len(
415 	struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
416 {
417 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
418 	unsigned long val;
419 	int ret;
420 
421 	ret = kstrtoul(buf, 0, &val);
422 	if (ret)
423 		return -EINVAL;
424 
425 	if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
426 		return -ERANGE;
427 
428 	ifmgd->uapsd_max_sp_len = val;
429 
430 	return buflen;
431 }
432 IEEE80211_IF_FILE_RW(uapsd_max_sp_len);
433 
434 static ssize_t ieee80211_if_fmt_tdls_wider_bw(
435 	const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
436 {
437 	const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
438 	bool tdls_wider_bw;
439 
440 	tdls_wider_bw = ieee80211_hw_check(&sdata->local->hw, TDLS_WIDER_BW) &&
441 			!ifmgd->tdls_wider_bw_prohibited;
442 
443 	return snprintf(buf, buflen, "%d\n", tdls_wider_bw);
444 }
445 
446 static ssize_t ieee80211_if_parse_tdls_wider_bw(
447 	struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
448 {
449 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
450 	u8 val;
451 	int ret;
452 
453 	ret = kstrtou8(buf, 0, &val);
454 	if (ret)
455 		return ret;
456 
457 	ifmgd->tdls_wider_bw_prohibited = !val;
458 	return buflen;
459 }
460 IEEE80211_IF_FILE_RW(tdls_wider_bw);
461 
462 /* AP attributes */
463 IEEE80211_IF_FILE(num_mcast_sta, u.ap.num_mcast_sta, ATOMIC);
464 IEEE80211_IF_FILE(num_sta_ps, u.ap.ps.num_sta_ps, ATOMIC);
465 IEEE80211_IF_FILE(dtim_count, u.ap.ps.dtim_count, DEC);
466 IEEE80211_IF_FILE(num_mcast_sta_vlan, u.vlan.num_mcast_sta, ATOMIC);
467 
468 static ssize_t ieee80211_if_fmt_num_buffered_multicast(
469 	const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
470 {
471 	return scnprintf(buf, buflen, "%u\n",
472 			 skb_queue_len(&sdata->u.ap.ps.bc_buf));
473 }
474 IEEE80211_IF_FILE_R(num_buffered_multicast);
475 
476 static ssize_t ieee80211_if_fmt_aqm(
477 	const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
478 {
479 	struct ieee80211_local *local = sdata->local;
480 	struct txq_info *txqi;
481 	int len;
482 
483 	if (!sdata->vif.txq)
484 		return 0;
485 
486 	txqi = to_txq_info(sdata->vif.txq);
487 
488 	spin_lock_bh(&local->fq.lock);
489 	rcu_read_lock();
490 
491 	len = scnprintf(buf,
492 			buflen,
493 			"ac backlog-bytes backlog-packets new-flows drops marks overlimit collisions tx-bytes tx-packets\n"
494 			"%u %u %u %u %u %u %u %u %u %u\n",
495 			txqi->txq.ac,
496 			txqi->tin.backlog_bytes,
497 			txqi->tin.backlog_packets,
498 			txqi->tin.flows,
499 			txqi->cstats.drop_count,
500 			txqi->cstats.ecn_mark,
501 			txqi->tin.overlimit,
502 			txqi->tin.collisions,
503 			txqi->tin.tx_bytes,
504 			txqi->tin.tx_packets);
505 
506 	rcu_read_unlock();
507 	spin_unlock_bh(&local->fq.lock);
508 
509 	return len;
510 }
511 IEEE80211_IF_FILE_R(aqm);
512 
513 IEEE80211_IF_FILE(multicast_to_unicast, u.ap.multicast_to_unicast, HEX);
514 
515 /* IBSS attributes */
516 static ssize_t ieee80211_if_fmt_tsf(
517 	const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
518 {
519 	struct ieee80211_local *local = sdata->local;
520 	u64 tsf;
521 
522 	tsf = drv_get_tsf(local, (struct ieee80211_sub_if_data *)sdata);
523 
524 	return scnprintf(buf, buflen, "0x%016llx\n", (unsigned long long) tsf);
525 }
526 
527 static ssize_t ieee80211_if_parse_tsf(
528 	struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
529 {
530 	struct ieee80211_local *local = sdata->local;
531 	unsigned long long tsf;
532 	int ret;
533 	int tsf_is_delta = 0;
534 
535 	if (strncmp(buf, "reset", 5) == 0) {
536 		if (local->ops->reset_tsf) {
537 			drv_reset_tsf(local, sdata);
538 			wiphy_info(local->hw.wiphy, "debugfs reset TSF\n");
539 		}
540 	} else {
541 		if (buflen > 10 && buf[1] == '=') {
542 			if (buf[0] == '+')
543 				tsf_is_delta = 1;
544 			else if (buf[0] == '-')
545 				tsf_is_delta = -1;
546 			else
547 				return -EINVAL;
548 			buf += 2;
549 		}
550 		ret = kstrtoull(buf, 10, &tsf);
551 		if (ret < 0)
552 			return ret;
553 		if (tsf_is_delta && local->ops->offset_tsf) {
554 			drv_offset_tsf(local, sdata, tsf_is_delta * tsf);
555 			wiphy_info(local->hw.wiphy,
556 				   "debugfs offset TSF by %018lld\n",
557 				   tsf_is_delta * tsf);
558 		} else if (local->ops->set_tsf) {
559 			if (tsf_is_delta)
560 				tsf = drv_get_tsf(local, sdata) +
561 				      tsf_is_delta * tsf;
562 			drv_set_tsf(local, sdata, tsf);
563 			wiphy_info(local->hw.wiphy,
564 				   "debugfs set TSF to %#018llx\n", tsf);
565 		}
566 	}
567 
568 	ieee80211_recalc_dtim(local, sdata);
569 	return buflen;
570 }
571 IEEE80211_IF_FILE_RW(tsf);
572 
573 
574 #ifdef CONFIG_MAC80211_MESH
575 IEEE80211_IF_FILE(estab_plinks, u.mesh.estab_plinks, ATOMIC);
576 
577 /* Mesh stats attributes */
578 IEEE80211_IF_FILE(fwded_mcast, u.mesh.mshstats.fwded_mcast, DEC);
579 IEEE80211_IF_FILE(fwded_unicast, u.mesh.mshstats.fwded_unicast, DEC);
580 IEEE80211_IF_FILE(fwded_frames, u.mesh.mshstats.fwded_frames, DEC);
581 IEEE80211_IF_FILE(dropped_frames_ttl, u.mesh.mshstats.dropped_frames_ttl, DEC);
582 IEEE80211_IF_FILE(dropped_frames_congestion,
583 		  u.mesh.mshstats.dropped_frames_congestion, DEC);
584 IEEE80211_IF_FILE(dropped_frames_no_route,
585 		  u.mesh.mshstats.dropped_frames_no_route, DEC);
586 
587 /* Mesh parameters */
588 IEEE80211_IF_FILE(dot11MeshMaxRetries,
589 		  u.mesh.mshcfg.dot11MeshMaxRetries, DEC);
590 IEEE80211_IF_FILE(dot11MeshRetryTimeout,
591 		  u.mesh.mshcfg.dot11MeshRetryTimeout, DEC);
592 IEEE80211_IF_FILE(dot11MeshConfirmTimeout,
593 		  u.mesh.mshcfg.dot11MeshConfirmTimeout, DEC);
594 IEEE80211_IF_FILE(dot11MeshHoldingTimeout,
595 		  u.mesh.mshcfg.dot11MeshHoldingTimeout, DEC);
596 IEEE80211_IF_FILE(dot11MeshTTL, u.mesh.mshcfg.dot11MeshTTL, DEC);
597 IEEE80211_IF_FILE(element_ttl, u.mesh.mshcfg.element_ttl, DEC);
598 IEEE80211_IF_FILE(auto_open_plinks, u.mesh.mshcfg.auto_open_plinks, DEC);
599 IEEE80211_IF_FILE(dot11MeshMaxPeerLinks,
600 		  u.mesh.mshcfg.dot11MeshMaxPeerLinks, DEC);
601 IEEE80211_IF_FILE(dot11MeshHWMPactivePathTimeout,
602 		  u.mesh.mshcfg.dot11MeshHWMPactivePathTimeout, DEC);
603 IEEE80211_IF_FILE(dot11MeshHWMPpreqMinInterval,
604 		  u.mesh.mshcfg.dot11MeshHWMPpreqMinInterval, DEC);
605 IEEE80211_IF_FILE(dot11MeshHWMPperrMinInterval,
606 		  u.mesh.mshcfg.dot11MeshHWMPperrMinInterval, DEC);
607 IEEE80211_IF_FILE(dot11MeshHWMPnetDiameterTraversalTime,
608 		  u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime, DEC);
609 IEEE80211_IF_FILE(dot11MeshHWMPmaxPREQretries,
610 		  u.mesh.mshcfg.dot11MeshHWMPmaxPREQretries, DEC);
611 IEEE80211_IF_FILE(path_refresh_time,
612 		  u.mesh.mshcfg.path_refresh_time, DEC);
613 IEEE80211_IF_FILE(min_discovery_timeout,
614 		  u.mesh.mshcfg.min_discovery_timeout, DEC);
615 IEEE80211_IF_FILE(dot11MeshHWMPRootMode,
616 		  u.mesh.mshcfg.dot11MeshHWMPRootMode, DEC);
617 IEEE80211_IF_FILE(dot11MeshGateAnnouncementProtocol,
618 		  u.mesh.mshcfg.dot11MeshGateAnnouncementProtocol, DEC);
619 IEEE80211_IF_FILE(dot11MeshHWMPRannInterval,
620 		  u.mesh.mshcfg.dot11MeshHWMPRannInterval, DEC);
621 IEEE80211_IF_FILE(dot11MeshForwarding, u.mesh.mshcfg.dot11MeshForwarding, DEC);
622 IEEE80211_IF_FILE(rssi_threshold, u.mesh.mshcfg.rssi_threshold, DEC);
623 IEEE80211_IF_FILE(ht_opmode, u.mesh.mshcfg.ht_opmode, DEC);
624 IEEE80211_IF_FILE(dot11MeshHWMPactivePathToRootTimeout,
625 		  u.mesh.mshcfg.dot11MeshHWMPactivePathToRootTimeout, DEC);
626 IEEE80211_IF_FILE(dot11MeshHWMProotInterval,
627 		  u.mesh.mshcfg.dot11MeshHWMProotInterval, DEC);
628 IEEE80211_IF_FILE(dot11MeshHWMPconfirmationInterval,
629 		  u.mesh.mshcfg.dot11MeshHWMPconfirmationInterval, DEC);
630 IEEE80211_IF_FILE(power_mode, u.mesh.mshcfg.power_mode, DEC);
631 IEEE80211_IF_FILE(dot11MeshAwakeWindowDuration,
632 		  u.mesh.mshcfg.dot11MeshAwakeWindowDuration, DEC);
633 IEEE80211_IF_FILE(dot11MeshConnectedToMeshGate,
634 		  u.mesh.mshcfg.dot11MeshConnectedToMeshGate, DEC);
635 IEEE80211_IF_FILE(dot11MeshNolearn, u.mesh.mshcfg.dot11MeshNolearn, DEC);
636 IEEE80211_IF_FILE(dot11MeshConnectedToAuthServer,
637 		  u.mesh.mshcfg.dot11MeshConnectedToAuthServer, DEC);
638 #endif
639 
640 #define DEBUGFS_ADD_MODE(name, mode) \
641 	debugfs_create_file(#name, mode, sdata->vif.debugfs_dir, \
642 			    sdata, &name##_ops)
643 
644 #define DEBUGFS_ADD(name) DEBUGFS_ADD_MODE(name, 0400)
645 
646 static void add_common_files(struct ieee80211_sub_if_data *sdata)
647 {
648 	DEBUGFS_ADD(rc_rateidx_mask_2ghz);
649 	DEBUGFS_ADD(rc_rateidx_mask_5ghz);
650 	DEBUGFS_ADD(rc_rateidx_mcs_mask_2ghz);
651 	DEBUGFS_ADD(rc_rateidx_mcs_mask_5ghz);
652 	DEBUGFS_ADD(rc_rateidx_vht_mcs_mask_2ghz);
653 	DEBUGFS_ADD(rc_rateidx_vht_mcs_mask_5ghz);
654 	DEBUGFS_ADD(hw_queues);
655 
656 	if (sdata->local->ops->wake_tx_queue &&
657 	    sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE &&
658 	    sdata->vif.type != NL80211_IFTYPE_NAN)
659 		DEBUGFS_ADD(aqm);
660 }
661 
662 static void add_sta_files(struct ieee80211_sub_if_data *sdata)
663 {
664 	DEBUGFS_ADD(bssid);
665 	DEBUGFS_ADD(aid);
666 	DEBUGFS_ADD(beacon_timeout);
667 	DEBUGFS_ADD_MODE(smps, 0600);
668 	DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
669 	DEBUGFS_ADD_MODE(beacon_loss, 0200);
670 	DEBUGFS_ADD_MODE(uapsd_queues, 0600);
671 	DEBUGFS_ADD_MODE(uapsd_max_sp_len, 0600);
672 	DEBUGFS_ADD_MODE(tdls_wider_bw, 0600);
673 }
674 
675 static void add_ap_files(struct ieee80211_sub_if_data *sdata)
676 {
677 	DEBUGFS_ADD(num_mcast_sta);
678 	DEBUGFS_ADD_MODE(smps, 0600);
679 	DEBUGFS_ADD(num_sta_ps);
680 	DEBUGFS_ADD(dtim_count);
681 	DEBUGFS_ADD(num_buffered_multicast);
682 	DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
683 	DEBUGFS_ADD_MODE(multicast_to_unicast, 0600);
684 }
685 
686 static void add_vlan_files(struct ieee80211_sub_if_data *sdata)
687 {
688 	/* add num_mcast_sta_vlan using name num_mcast_sta */
689 	debugfs_create_file("num_mcast_sta", 0400, sdata->vif.debugfs_dir,
690 			    sdata, &num_mcast_sta_vlan_ops);
691 }
692 
693 static void add_ibss_files(struct ieee80211_sub_if_data *sdata)
694 {
695 	DEBUGFS_ADD_MODE(tsf, 0600);
696 }
697 
698 #ifdef CONFIG_MAC80211_MESH
699 
700 static void add_mesh_files(struct ieee80211_sub_if_data *sdata)
701 {
702 	DEBUGFS_ADD_MODE(tsf, 0600);
703 	DEBUGFS_ADD_MODE(estab_plinks, 0400);
704 }
705 
706 static void add_mesh_stats(struct ieee80211_sub_if_data *sdata)
707 {
708 	struct dentry *dir = debugfs_create_dir("mesh_stats",
709 						sdata->vif.debugfs_dir);
710 #define MESHSTATS_ADD(name)\
711 	debugfs_create_file(#name, 0400, dir, sdata, &name##_ops)
712 
713 	MESHSTATS_ADD(fwded_mcast);
714 	MESHSTATS_ADD(fwded_unicast);
715 	MESHSTATS_ADD(fwded_frames);
716 	MESHSTATS_ADD(dropped_frames_ttl);
717 	MESHSTATS_ADD(dropped_frames_no_route);
718 	MESHSTATS_ADD(dropped_frames_congestion);
719 #undef MESHSTATS_ADD
720 }
721 
722 static void add_mesh_config(struct ieee80211_sub_if_data *sdata)
723 {
724 	struct dentry *dir = debugfs_create_dir("mesh_config",
725 						sdata->vif.debugfs_dir);
726 
727 #define MESHPARAMS_ADD(name) \
728 	debugfs_create_file(#name, 0600, dir, sdata, &name##_ops)
729 
730 	MESHPARAMS_ADD(dot11MeshMaxRetries);
731 	MESHPARAMS_ADD(dot11MeshRetryTimeout);
732 	MESHPARAMS_ADD(dot11MeshConfirmTimeout);
733 	MESHPARAMS_ADD(dot11MeshHoldingTimeout);
734 	MESHPARAMS_ADD(dot11MeshTTL);
735 	MESHPARAMS_ADD(element_ttl);
736 	MESHPARAMS_ADD(auto_open_plinks);
737 	MESHPARAMS_ADD(dot11MeshMaxPeerLinks);
738 	MESHPARAMS_ADD(dot11MeshHWMPactivePathTimeout);
739 	MESHPARAMS_ADD(dot11MeshHWMPpreqMinInterval);
740 	MESHPARAMS_ADD(dot11MeshHWMPperrMinInterval);
741 	MESHPARAMS_ADD(dot11MeshHWMPnetDiameterTraversalTime);
742 	MESHPARAMS_ADD(dot11MeshHWMPmaxPREQretries);
743 	MESHPARAMS_ADD(path_refresh_time);
744 	MESHPARAMS_ADD(min_discovery_timeout);
745 	MESHPARAMS_ADD(dot11MeshHWMPRootMode);
746 	MESHPARAMS_ADD(dot11MeshHWMPRannInterval);
747 	MESHPARAMS_ADD(dot11MeshForwarding);
748 	MESHPARAMS_ADD(dot11MeshGateAnnouncementProtocol);
749 	MESHPARAMS_ADD(rssi_threshold);
750 	MESHPARAMS_ADD(ht_opmode);
751 	MESHPARAMS_ADD(dot11MeshHWMPactivePathToRootTimeout);
752 	MESHPARAMS_ADD(dot11MeshHWMProotInterval);
753 	MESHPARAMS_ADD(dot11MeshHWMPconfirmationInterval);
754 	MESHPARAMS_ADD(power_mode);
755 	MESHPARAMS_ADD(dot11MeshAwakeWindowDuration);
756 	MESHPARAMS_ADD(dot11MeshConnectedToMeshGate);
757 	MESHPARAMS_ADD(dot11MeshNolearn);
758 	MESHPARAMS_ADD(dot11MeshConnectedToAuthServer);
759 #undef MESHPARAMS_ADD
760 }
761 #endif
762 
763 static void add_files(struct ieee80211_sub_if_data *sdata)
764 {
765 	if (!sdata->vif.debugfs_dir)
766 		return;
767 
768 	DEBUGFS_ADD(flags);
769 	DEBUGFS_ADD(state);
770 	DEBUGFS_ADD(txpower);
771 	DEBUGFS_ADD(user_power_level);
772 	DEBUGFS_ADD(ap_power_level);
773 
774 	if (sdata->vif.type != NL80211_IFTYPE_MONITOR)
775 		add_common_files(sdata);
776 
777 	switch (sdata->vif.type) {
778 	case NL80211_IFTYPE_MESH_POINT:
779 #ifdef CONFIG_MAC80211_MESH
780 		add_mesh_files(sdata);
781 		add_mesh_stats(sdata);
782 		add_mesh_config(sdata);
783 #endif
784 		break;
785 	case NL80211_IFTYPE_STATION:
786 		add_sta_files(sdata);
787 		break;
788 	case NL80211_IFTYPE_ADHOC:
789 		add_ibss_files(sdata);
790 		break;
791 	case NL80211_IFTYPE_AP:
792 		add_ap_files(sdata);
793 		break;
794 	case NL80211_IFTYPE_AP_VLAN:
795 		add_vlan_files(sdata);
796 		break;
797 	default:
798 		break;
799 	}
800 }
801 
802 void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata)
803 {
804 	char buf[10+IFNAMSIZ];
805 
806 	sprintf(buf, "netdev:%s", sdata->name);
807 	sdata->vif.debugfs_dir = debugfs_create_dir(buf,
808 		sdata->local->hw.wiphy->debugfsdir);
809 	sdata->debugfs.subdir_stations = debugfs_create_dir("stations",
810 							sdata->vif.debugfs_dir);
811 	add_files(sdata);
812 }
813 
814 void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata)
815 {
816 	if (!sdata->vif.debugfs_dir)
817 		return;
818 
819 	debugfs_remove_recursive(sdata->vif.debugfs_dir);
820 	sdata->vif.debugfs_dir = NULL;
821 	sdata->debugfs.subdir_stations = NULL;
822 }
823 
824 void ieee80211_debugfs_rename_netdev(struct ieee80211_sub_if_data *sdata)
825 {
826 	struct dentry *dir;
827 	char buf[10 + IFNAMSIZ];
828 
829 	dir = sdata->vif.debugfs_dir;
830 
831 	if (IS_ERR_OR_NULL(dir))
832 		return;
833 
834 	sprintf(buf, "netdev:%s", sdata->name);
835 	debugfs_rename(dir->d_parent, dir, dir->d_parent, buf);
836 }
837