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ping: Fix race in free in receive path
[deliverable/linux.git] / net / mac80211 / debugfs_netdev.c
1 /*
2 * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
3 * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 */
9
10 #include <linux/kernel.h>
11 #include <linux/device.h>
12 #include <linux/if.h>
13 #include <linux/if_ether.h>
14 #include <linux/interrupt.h>
15 #include <linux/netdevice.h>
16 #include <linux/rtnetlink.h>
17 #include <linux/slab.h>
18 #include <linux/notifier.h>
19 #include <net/mac80211.h>
20 #include <net/cfg80211.h>
21 #include "ieee80211_i.h"
22 #include "rate.h"
23 #include "debugfs.h"
24 #include "debugfs_netdev.h"
25 #include "driver-ops.h"
26
27 static ssize_t ieee80211_if_read(
28 struct ieee80211_sub_if_data *sdata,
29 char __user *userbuf,
30 size_t count, loff_t *ppos,
31 ssize_t (*format)(const struct ieee80211_sub_if_data *, char *, int))
32 {
33 char buf[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
46 static ssize_t ieee80211_if_write(
47 struct ieee80211_sub_if_data *sdata,
48 const char __user *userbuf,
49 size_t count, loff_t *ppos,
50 ssize_t (*write)(struct ieee80211_sub_if_data *, const char *, int))
51 {
52 char buf[64];
53 ssize_t ret;
54
55 if (count >= sizeof(buf))
56 return -E2BIG;
57
58 if (copy_from_user(buf, userbuf, count))
59 return -EFAULT;
60 buf[count] = '\0';
61
62 ret = -ENODEV;
63 rtnl_lock();
64 ret = (*write)(sdata, buf, count);
65 rtnl_unlock();
66
67 return ret;
68 }
69
70 #define IEEE80211_IF_FMT(name, field, format_string) \
71 static ssize_t ieee80211_if_fmt_##name( \
72 const struct ieee80211_sub_if_data *sdata, char *buf, \
73 int buflen) \
74 { \
75 return scnprintf(buf, buflen, format_string, sdata->field); \
76 }
77 #define IEEE80211_IF_FMT_DEC(name, field) \
78 IEEE80211_IF_FMT(name, field, "%d\n")
79 #define IEEE80211_IF_FMT_HEX(name, field) \
80 IEEE80211_IF_FMT(name, field, "%#x\n")
81 #define IEEE80211_IF_FMT_LHEX(name, field) \
82 IEEE80211_IF_FMT(name, field, "%#lx\n")
83 #define IEEE80211_IF_FMT_SIZE(name, field) \
84 IEEE80211_IF_FMT(name, field, "%zd\n")
85
86 #define IEEE80211_IF_FMT_HEXARRAY(name, field) \
87 static ssize_t ieee80211_if_fmt_##name( \
88 const struct ieee80211_sub_if_data *sdata, \
89 char *buf, int buflen) \
90 { \
91 char *p = buf; \
92 int i; \
93 for (i = 0; i < sizeof(sdata->field); i++) { \
94 p += scnprintf(p, buflen + buf - p, "%.2x ", \
95 sdata->field[i]); \
96 } \
97 p += scnprintf(p, buflen + buf - p, "\n"); \
98 return p - buf; \
99 }
100
101 #define IEEE80211_IF_FMT_ATOMIC(name, field) \
102 static ssize_t ieee80211_if_fmt_##name( \
103 const struct ieee80211_sub_if_data *sdata, \
104 char *buf, int buflen) \
105 { \
106 return scnprintf(buf, buflen, "%d\n", atomic_read(&sdata->field));\
107 }
108
109 #define IEEE80211_IF_FMT_MAC(name, field) \
110 static ssize_t ieee80211_if_fmt_##name( \
111 const struct ieee80211_sub_if_data *sdata, char *buf, \
112 int buflen) \
113 { \
114 return scnprintf(buf, buflen, "%pM\n", sdata->field); \
115 }
116
117 #define IEEE80211_IF_FMT_DEC_DIV_16(name, field) \
118 static ssize_t ieee80211_if_fmt_##name( \
119 const struct ieee80211_sub_if_data *sdata, \
120 char *buf, int buflen) \
121 { \
122 return scnprintf(buf, buflen, "%d\n", sdata->field / 16); \
123 }
124
125 #define IEEE80211_IF_FMT_JIFFIES_TO_MS(name, field) \
126 static ssize_t ieee80211_if_fmt_##name( \
127 const struct ieee80211_sub_if_data *sdata, \
128 char *buf, int buflen) \
129 { \
130 return scnprintf(buf, buflen, "%d\n", \
131 jiffies_to_msecs(sdata->field)); \
132 }
133
134 #define _IEEE80211_IF_FILE_OPS(name, _read, _write) \
135 static const struct file_operations name##_ops = { \
136 .read = (_read), \
137 .write = (_write), \
138 .open = simple_open, \
139 .llseek = generic_file_llseek, \
140 }
141
142 #define _IEEE80211_IF_FILE_R_FN(name) \
143 static ssize_t ieee80211_if_read_##name(struct file *file, \
144 char __user *userbuf, \
145 size_t count, loff_t *ppos) \
146 { \
147 return ieee80211_if_read(file->private_data, \
148 userbuf, count, ppos, \
149 ieee80211_if_fmt_##name); \
150 }
151
152 #define _IEEE80211_IF_FILE_W_FN(name) \
153 static ssize_t ieee80211_if_write_##name(struct file *file, \
154 const char __user *userbuf, \
155 size_t count, loff_t *ppos) \
156 { \
157 return ieee80211_if_write(file->private_data, userbuf, count, \
158 ppos, ieee80211_if_parse_##name); \
159 }
160
161 #define IEEE80211_IF_FILE_R(name) \
162 _IEEE80211_IF_FILE_R_FN(name) \
163 _IEEE80211_IF_FILE_OPS(name, ieee80211_if_read_##name, NULL)
164
165 #define IEEE80211_IF_FILE_W(name) \
166 _IEEE80211_IF_FILE_W_FN(name) \
167 _IEEE80211_IF_FILE_OPS(name, NULL, ieee80211_if_write_##name)
168
169 #define IEEE80211_IF_FILE_RW(name) \
170 _IEEE80211_IF_FILE_R_FN(name) \
171 _IEEE80211_IF_FILE_W_FN(name) \
172 _IEEE80211_IF_FILE_OPS(name, ieee80211_if_read_##name, \
173 ieee80211_if_write_##name)
174
175 #define IEEE80211_IF_FILE(name, field, format) \
176 IEEE80211_IF_FMT_##format(name, field) \
177 IEEE80211_IF_FILE_R(name)
178
179 /* common attributes */
180 IEEE80211_IF_FILE(drop_unencrypted, drop_unencrypted, DEC);
181 IEEE80211_IF_FILE(rc_rateidx_mask_2ghz, rc_rateidx_mask[IEEE80211_BAND_2GHZ],
182 HEX);
183 IEEE80211_IF_FILE(rc_rateidx_mask_5ghz, rc_rateidx_mask[IEEE80211_BAND_5GHZ],
184 HEX);
185 IEEE80211_IF_FILE(rc_rateidx_mcs_mask_2ghz,
186 rc_rateidx_mcs_mask[IEEE80211_BAND_2GHZ], HEXARRAY);
187 IEEE80211_IF_FILE(rc_rateidx_mcs_mask_5ghz,
188 rc_rateidx_mcs_mask[IEEE80211_BAND_5GHZ], HEXARRAY);
189
190 IEEE80211_IF_FILE(flags, flags, HEX);
191 IEEE80211_IF_FILE(state, state, LHEX);
192 IEEE80211_IF_FILE(txpower, vif.bss_conf.txpower, DEC);
193 IEEE80211_IF_FILE(ap_power_level, ap_power_level, DEC);
194 IEEE80211_IF_FILE(user_power_level, user_power_level, DEC);
195
196 static ssize_t
197 ieee80211_if_fmt_hw_queues(const struct ieee80211_sub_if_data *sdata,
198 char *buf, int buflen)
199 {
200 int len;
201
202 len = scnprintf(buf, buflen, "AC queues: VO:%d VI:%d BE:%d BK:%d\n",
203 sdata->vif.hw_queue[IEEE80211_AC_VO],
204 sdata->vif.hw_queue[IEEE80211_AC_VI],
205 sdata->vif.hw_queue[IEEE80211_AC_BE],
206 sdata->vif.hw_queue[IEEE80211_AC_BK]);
207
208 if (sdata->vif.type == NL80211_IFTYPE_AP)
209 len += scnprintf(buf + len, buflen - len, "cab queue: %d\n",
210 sdata->vif.cab_queue);
211
212 return len;
213 }
214 IEEE80211_IF_FILE_R(hw_queues);
215
216 /* STA attributes */
217 IEEE80211_IF_FILE(bssid, u.mgd.bssid, MAC);
218 IEEE80211_IF_FILE(aid, u.mgd.aid, DEC);
219 IEEE80211_IF_FILE(last_beacon, u.mgd.last_beacon_signal, DEC);
220 IEEE80211_IF_FILE(ave_beacon, u.mgd.ave_beacon_signal, DEC_DIV_16);
221 IEEE80211_IF_FILE(beacon_timeout, u.mgd.beacon_timeout, JIFFIES_TO_MS);
222
223 static int ieee80211_set_smps(struct ieee80211_sub_if_data *sdata,
224 enum ieee80211_smps_mode smps_mode)
225 {
226 struct ieee80211_local *local = sdata->local;
227 int err;
228
229 if (!(local->hw.wiphy->features & NL80211_FEATURE_STATIC_SMPS) &&
230 smps_mode == IEEE80211_SMPS_STATIC)
231 return -EINVAL;
232
233 /* auto should be dynamic if in PS mode */
234 if (!(local->hw.wiphy->features & NL80211_FEATURE_DYNAMIC_SMPS) &&
235 (smps_mode == IEEE80211_SMPS_DYNAMIC ||
236 smps_mode == IEEE80211_SMPS_AUTOMATIC))
237 return -EINVAL;
238
239 if (sdata->vif.type != NL80211_IFTYPE_STATION &&
240 sdata->vif.type != NL80211_IFTYPE_AP)
241 return -EOPNOTSUPP;
242
243 sdata_lock(sdata);
244 if (sdata->vif.type == NL80211_IFTYPE_STATION)
245 err = __ieee80211_request_smps_mgd(sdata, smps_mode);
246 else
247 err = __ieee80211_request_smps_ap(sdata, smps_mode);
248 sdata_unlock(sdata);
249
250 return err;
251 }
252
253 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
254 [IEEE80211_SMPS_AUTOMATIC] = "auto",
255 [IEEE80211_SMPS_OFF] = "off",
256 [IEEE80211_SMPS_STATIC] = "static",
257 [IEEE80211_SMPS_DYNAMIC] = "dynamic",
258 };
259
260 static ssize_t ieee80211_if_fmt_smps(const struct ieee80211_sub_if_data *sdata,
261 char *buf, int buflen)
262 {
263 if (sdata->vif.type == NL80211_IFTYPE_STATION)
264 return snprintf(buf, buflen, "request: %s\nused: %s\n",
265 smps_modes[sdata->u.mgd.req_smps],
266 smps_modes[sdata->smps_mode]);
267 if (sdata->vif.type == NL80211_IFTYPE_AP)
268 return snprintf(buf, buflen, "request: %s\nused: %s\n",
269 smps_modes[sdata->u.ap.req_smps],
270 smps_modes[sdata->smps_mode]);
271 return -EINVAL;
272 }
273
274 static ssize_t ieee80211_if_parse_smps(struct ieee80211_sub_if_data *sdata,
275 const char *buf, int buflen)
276 {
277 enum ieee80211_smps_mode mode;
278
279 for (mode = 0; mode < IEEE80211_SMPS_NUM_MODES; mode++) {
280 if (strncmp(buf, smps_modes[mode], buflen) == 0) {
281 int err = ieee80211_set_smps(sdata, mode);
282 if (!err)
283 return buflen;
284 return err;
285 }
286 }
287
288 return -EINVAL;
289 }
290 IEEE80211_IF_FILE_RW(smps);
291
292 static ssize_t ieee80211_if_parse_tkip_mic_test(
293 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
294 {
295 struct ieee80211_local *local = sdata->local;
296 u8 addr[ETH_ALEN];
297 struct sk_buff *skb;
298 struct ieee80211_hdr *hdr;
299 __le16 fc;
300
301 if (!mac_pton(buf, addr))
302 return -EINVAL;
303
304 if (!ieee80211_sdata_running(sdata))
305 return -ENOTCONN;
306
307 skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24 + 100);
308 if (!skb)
309 return -ENOMEM;
310 skb_reserve(skb, local->hw.extra_tx_headroom);
311
312 hdr = (struct ieee80211_hdr *) skb_put(skb, 24);
313 memset(hdr, 0, 24);
314 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA);
315
316 switch (sdata->vif.type) {
317 case NL80211_IFTYPE_AP:
318 fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS);
319 /* DA BSSID SA */
320 memcpy(hdr->addr1, addr, ETH_ALEN);
321 memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
322 memcpy(hdr->addr3, sdata->vif.addr, ETH_ALEN);
323 break;
324 case NL80211_IFTYPE_STATION:
325 fc |= cpu_to_le16(IEEE80211_FCTL_TODS);
326 /* BSSID SA DA */
327 sdata_lock(sdata);
328 if (!sdata->u.mgd.associated) {
329 sdata_unlock(sdata);
330 dev_kfree_skb(skb);
331 return -ENOTCONN;
332 }
333 memcpy(hdr->addr1, sdata->u.mgd.associated->bssid, ETH_ALEN);
334 memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
335 memcpy(hdr->addr3, addr, ETH_ALEN);
336 sdata_unlock(sdata);
337 break;
338 default:
339 dev_kfree_skb(skb);
340 return -EOPNOTSUPP;
341 }
342 hdr->frame_control = fc;
343
344 /*
345 * Add some length to the test frame to make it look bit more valid.
346 * The exact contents does not matter since the recipient is required
347 * to drop this because of the Michael MIC failure.
348 */
349 memset(skb_put(skb, 50), 0, 50);
350
351 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_TKIP_MIC_FAILURE;
352
353 ieee80211_tx_skb(sdata, skb);
354
355 return buflen;
356 }
357 IEEE80211_IF_FILE_W(tkip_mic_test);
358
359 static ssize_t ieee80211_if_parse_beacon_loss(
360 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
361 {
362 if (!ieee80211_sdata_running(sdata) || !sdata->vif.bss_conf.assoc)
363 return -ENOTCONN;
364
365 ieee80211_beacon_loss(&sdata->vif);
366
367 return buflen;
368 }
369 IEEE80211_IF_FILE_W(beacon_loss);
370
371 static ssize_t ieee80211_if_fmt_uapsd_queues(
372 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
373 {
374 const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
375
376 return snprintf(buf, buflen, "0x%x\n", ifmgd->uapsd_queues);
377 }
378
379 static ssize_t ieee80211_if_parse_uapsd_queues(
380 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
381 {
382 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
383 u8 val;
384 int ret;
385
386 ret = kstrtou8(buf, 0, &val);
387 if (ret)
388 return ret;
389
390 if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
391 return -ERANGE;
392
393 ifmgd->uapsd_queues = val;
394
395 return buflen;
396 }
397 IEEE80211_IF_FILE_RW(uapsd_queues);
398
399 static ssize_t ieee80211_if_fmt_uapsd_max_sp_len(
400 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
401 {
402 const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
403
404 return snprintf(buf, buflen, "0x%x\n", ifmgd->uapsd_max_sp_len);
405 }
406
407 static ssize_t ieee80211_if_parse_uapsd_max_sp_len(
408 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
409 {
410 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
411 unsigned long val;
412 int ret;
413
414 ret = kstrtoul(buf, 0, &val);
415 if (ret)
416 return -EINVAL;
417
418 if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
419 return -ERANGE;
420
421 ifmgd->uapsd_max_sp_len = val;
422
423 return buflen;
424 }
425 IEEE80211_IF_FILE_RW(uapsd_max_sp_len);
426
427 /* AP attributes */
428 IEEE80211_IF_FILE(num_mcast_sta, u.ap.num_mcast_sta, ATOMIC);
429 IEEE80211_IF_FILE(num_sta_ps, u.ap.ps.num_sta_ps, ATOMIC);
430 IEEE80211_IF_FILE(dtim_count, u.ap.ps.dtim_count, DEC);
431
432 static ssize_t ieee80211_if_fmt_num_buffered_multicast(
433 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
434 {
435 return scnprintf(buf, buflen, "%u\n",
436 skb_queue_len(&sdata->u.ap.ps.bc_buf));
437 }
438 IEEE80211_IF_FILE_R(num_buffered_multicast);
439
440 /* IBSS attributes */
441 static ssize_t ieee80211_if_fmt_tsf(
442 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
443 {
444 struct ieee80211_local *local = sdata->local;
445 u64 tsf;
446
447 tsf = drv_get_tsf(local, (struct ieee80211_sub_if_data *)sdata);
448
449 return scnprintf(buf, buflen, "0x%016llx\n", (unsigned long long) tsf);
450 }
451
452 static ssize_t ieee80211_if_parse_tsf(
453 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
454 {
455 struct ieee80211_local *local = sdata->local;
456 unsigned long long tsf;
457 int ret;
458 int tsf_is_delta = 0;
459
460 if (strncmp(buf, "reset", 5) == 0) {
461 if (local->ops->reset_tsf) {
462 drv_reset_tsf(local, sdata);
463 wiphy_info(local->hw.wiphy, "debugfs reset TSF\n");
464 }
465 } else {
466 if (buflen > 10 && buf[1] == '=') {
467 if (buf[0] == '+')
468 tsf_is_delta = 1;
469 else if (buf[0] == '-')
470 tsf_is_delta = -1;
471 else
472 return -EINVAL;
473 buf += 2;
474 }
475 ret = kstrtoull(buf, 10, &tsf);
476 if (ret < 0)
477 return ret;
478 if (tsf_is_delta)
479 tsf = drv_get_tsf(local, sdata) + tsf_is_delta * tsf;
480 if (local->ops->set_tsf) {
481 drv_set_tsf(local, sdata, tsf);
482 wiphy_info(local->hw.wiphy,
483 "debugfs set TSF to %#018llx\n", tsf);
484 }
485 }
486
487 ieee80211_recalc_dtim(local, sdata);
488 return buflen;
489 }
490 IEEE80211_IF_FILE_RW(tsf);
491
492
493 /* WDS attributes */
494 IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC);
495
496 #ifdef CONFIG_MAC80211_MESH
497 IEEE80211_IF_FILE(estab_plinks, u.mesh.estab_plinks, ATOMIC);
498
499 /* Mesh stats attributes */
500 IEEE80211_IF_FILE(fwded_mcast, u.mesh.mshstats.fwded_mcast, DEC);
501 IEEE80211_IF_FILE(fwded_unicast, u.mesh.mshstats.fwded_unicast, DEC);
502 IEEE80211_IF_FILE(fwded_frames, u.mesh.mshstats.fwded_frames, DEC);
503 IEEE80211_IF_FILE(dropped_frames_ttl, u.mesh.mshstats.dropped_frames_ttl, DEC);
504 IEEE80211_IF_FILE(dropped_frames_congestion,
505 u.mesh.mshstats.dropped_frames_congestion, DEC);
506 IEEE80211_IF_FILE(dropped_frames_no_route,
507 u.mesh.mshstats.dropped_frames_no_route, DEC);
508
509 /* Mesh parameters */
510 IEEE80211_IF_FILE(dot11MeshMaxRetries,
511 u.mesh.mshcfg.dot11MeshMaxRetries, DEC);
512 IEEE80211_IF_FILE(dot11MeshRetryTimeout,
513 u.mesh.mshcfg.dot11MeshRetryTimeout, DEC);
514 IEEE80211_IF_FILE(dot11MeshConfirmTimeout,
515 u.mesh.mshcfg.dot11MeshConfirmTimeout, DEC);
516 IEEE80211_IF_FILE(dot11MeshHoldingTimeout,
517 u.mesh.mshcfg.dot11MeshHoldingTimeout, DEC);
518 IEEE80211_IF_FILE(dot11MeshTTL, u.mesh.mshcfg.dot11MeshTTL, DEC);
519 IEEE80211_IF_FILE(element_ttl, u.mesh.mshcfg.element_ttl, DEC);
520 IEEE80211_IF_FILE(auto_open_plinks, u.mesh.mshcfg.auto_open_plinks, DEC);
521 IEEE80211_IF_FILE(dot11MeshMaxPeerLinks,
522 u.mesh.mshcfg.dot11MeshMaxPeerLinks, DEC);
523 IEEE80211_IF_FILE(dot11MeshHWMPactivePathTimeout,
524 u.mesh.mshcfg.dot11MeshHWMPactivePathTimeout, DEC);
525 IEEE80211_IF_FILE(dot11MeshHWMPpreqMinInterval,
526 u.mesh.mshcfg.dot11MeshHWMPpreqMinInterval, DEC);
527 IEEE80211_IF_FILE(dot11MeshHWMPperrMinInterval,
528 u.mesh.mshcfg.dot11MeshHWMPperrMinInterval, DEC);
529 IEEE80211_IF_FILE(dot11MeshHWMPnetDiameterTraversalTime,
530 u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime, DEC);
531 IEEE80211_IF_FILE(dot11MeshHWMPmaxPREQretries,
532 u.mesh.mshcfg.dot11MeshHWMPmaxPREQretries, DEC);
533 IEEE80211_IF_FILE(path_refresh_time,
534 u.mesh.mshcfg.path_refresh_time, DEC);
535 IEEE80211_IF_FILE(min_discovery_timeout,
536 u.mesh.mshcfg.min_discovery_timeout, DEC);
537 IEEE80211_IF_FILE(dot11MeshHWMPRootMode,
538 u.mesh.mshcfg.dot11MeshHWMPRootMode, DEC);
539 IEEE80211_IF_FILE(dot11MeshGateAnnouncementProtocol,
540 u.mesh.mshcfg.dot11MeshGateAnnouncementProtocol, DEC);
541 IEEE80211_IF_FILE(dot11MeshHWMPRannInterval,
542 u.mesh.mshcfg.dot11MeshHWMPRannInterval, DEC);
543 IEEE80211_IF_FILE(dot11MeshForwarding, u.mesh.mshcfg.dot11MeshForwarding, DEC);
544 IEEE80211_IF_FILE(rssi_threshold, u.mesh.mshcfg.rssi_threshold, DEC);
545 IEEE80211_IF_FILE(ht_opmode, u.mesh.mshcfg.ht_opmode, DEC);
546 IEEE80211_IF_FILE(dot11MeshHWMPactivePathToRootTimeout,
547 u.mesh.mshcfg.dot11MeshHWMPactivePathToRootTimeout, DEC);
548 IEEE80211_IF_FILE(dot11MeshHWMProotInterval,
549 u.mesh.mshcfg.dot11MeshHWMProotInterval, DEC);
550 IEEE80211_IF_FILE(dot11MeshHWMPconfirmationInterval,
551 u.mesh.mshcfg.dot11MeshHWMPconfirmationInterval, DEC);
552 IEEE80211_IF_FILE(power_mode, u.mesh.mshcfg.power_mode, DEC);
553 IEEE80211_IF_FILE(dot11MeshAwakeWindowDuration,
554 u.mesh.mshcfg.dot11MeshAwakeWindowDuration, DEC);
555 #endif
556
557 #define DEBUGFS_ADD_MODE(name, mode) \
558 debugfs_create_file(#name, mode, sdata->vif.debugfs_dir, \
559 sdata, &name##_ops);
560
561 #define DEBUGFS_ADD(name) DEBUGFS_ADD_MODE(name, 0400)
562
563 static void add_common_files(struct ieee80211_sub_if_data *sdata)
564 {
565 DEBUGFS_ADD(drop_unencrypted);
566 DEBUGFS_ADD(rc_rateidx_mask_2ghz);
567 DEBUGFS_ADD(rc_rateidx_mask_5ghz);
568 DEBUGFS_ADD(rc_rateidx_mcs_mask_2ghz);
569 DEBUGFS_ADD(rc_rateidx_mcs_mask_5ghz);
570 DEBUGFS_ADD(hw_queues);
571 }
572
573 static void add_sta_files(struct ieee80211_sub_if_data *sdata)
574 {
575 DEBUGFS_ADD(bssid);
576 DEBUGFS_ADD(aid);
577 DEBUGFS_ADD(last_beacon);
578 DEBUGFS_ADD(ave_beacon);
579 DEBUGFS_ADD(beacon_timeout);
580 DEBUGFS_ADD_MODE(smps, 0600);
581 DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
582 DEBUGFS_ADD_MODE(beacon_loss, 0200);
583 DEBUGFS_ADD_MODE(uapsd_queues, 0600);
584 DEBUGFS_ADD_MODE(uapsd_max_sp_len, 0600);
585 }
586
587 static void add_ap_files(struct ieee80211_sub_if_data *sdata)
588 {
589 DEBUGFS_ADD(num_mcast_sta);
590 DEBUGFS_ADD_MODE(smps, 0600);
591 DEBUGFS_ADD(num_sta_ps);
592 DEBUGFS_ADD(dtim_count);
593 DEBUGFS_ADD(num_buffered_multicast);
594 DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
595 }
596
597 static void add_ibss_files(struct ieee80211_sub_if_data *sdata)
598 {
599 DEBUGFS_ADD_MODE(tsf, 0600);
600 }
601
602 static void add_wds_files(struct ieee80211_sub_if_data *sdata)
603 {
604 DEBUGFS_ADD(peer);
605 }
606
607 #ifdef CONFIG_MAC80211_MESH
608
609 static void add_mesh_files(struct ieee80211_sub_if_data *sdata)
610 {
611 DEBUGFS_ADD_MODE(tsf, 0600);
612 DEBUGFS_ADD_MODE(estab_plinks, 0400);
613 }
614
615 static void add_mesh_stats(struct ieee80211_sub_if_data *sdata)
616 {
617 struct dentry *dir = debugfs_create_dir("mesh_stats",
618 sdata->vif.debugfs_dir);
619 #define MESHSTATS_ADD(name)\
620 debugfs_create_file(#name, 0400, dir, sdata, &name##_ops);
621
622 MESHSTATS_ADD(fwded_mcast);
623 MESHSTATS_ADD(fwded_unicast);
624 MESHSTATS_ADD(fwded_frames);
625 MESHSTATS_ADD(dropped_frames_ttl);
626 MESHSTATS_ADD(dropped_frames_no_route);
627 MESHSTATS_ADD(dropped_frames_congestion);
628 #undef MESHSTATS_ADD
629 }
630
631 static void add_mesh_config(struct ieee80211_sub_if_data *sdata)
632 {
633 struct dentry *dir = debugfs_create_dir("mesh_config",
634 sdata->vif.debugfs_dir);
635
636 #define MESHPARAMS_ADD(name) \
637 debugfs_create_file(#name, 0600, dir, sdata, &name##_ops);
638
639 MESHPARAMS_ADD(dot11MeshMaxRetries);
640 MESHPARAMS_ADD(dot11MeshRetryTimeout);
641 MESHPARAMS_ADD(dot11MeshConfirmTimeout);
642 MESHPARAMS_ADD(dot11MeshHoldingTimeout);
643 MESHPARAMS_ADD(dot11MeshTTL);
644 MESHPARAMS_ADD(element_ttl);
645 MESHPARAMS_ADD(auto_open_plinks);
646 MESHPARAMS_ADD(dot11MeshMaxPeerLinks);
647 MESHPARAMS_ADD(dot11MeshHWMPactivePathTimeout);
648 MESHPARAMS_ADD(dot11MeshHWMPpreqMinInterval);
649 MESHPARAMS_ADD(dot11MeshHWMPperrMinInterval);
650 MESHPARAMS_ADD(dot11MeshHWMPnetDiameterTraversalTime);
651 MESHPARAMS_ADD(dot11MeshHWMPmaxPREQretries);
652 MESHPARAMS_ADD(path_refresh_time);
653 MESHPARAMS_ADD(min_discovery_timeout);
654 MESHPARAMS_ADD(dot11MeshHWMPRootMode);
655 MESHPARAMS_ADD(dot11MeshHWMPRannInterval);
656 MESHPARAMS_ADD(dot11MeshForwarding);
657 MESHPARAMS_ADD(dot11MeshGateAnnouncementProtocol);
658 MESHPARAMS_ADD(rssi_threshold);
659 MESHPARAMS_ADD(ht_opmode);
660 MESHPARAMS_ADD(dot11MeshHWMPactivePathToRootTimeout);
661 MESHPARAMS_ADD(dot11MeshHWMProotInterval);
662 MESHPARAMS_ADD(dot11MeshHWMPconfirmationInterval);
663 MESHPARAMS_ADD(power_mode);
664 MESHPARAMS_ADD(dot11MeshAwakeWindowDuration);
665 #undef MESHPARAMS_ADD
666 }
667 #endif
668
669 static void add_files(struct ieee80211_sub_if_data *sdata)
670 {
671 if (!sdata->vif.debugfs_dir)
672 return;
673
674 DEBUGFS_ADD(flags);
675 DEBUGFS_ADD(state);
676 DEBUGFS_ADD(txpower);
677 DEBUGFS_ADD(user_power_level);
678 DEBUGFS_ADD(ap_power_level);
679
680 if (sdata->vif.type != NL80211_IFTYPE_MONITOR)
681 add_common_files(sdata);
682
683 switch (sdata->vif.type) {
684 case NL80211_IFTYPE_MESH_POINT:
685 #ifdef CONFIG_MAC80211_MESH
686 add_mesh_files(sdata);
687 add_mesh_stats(sdata);
688 add_mesh_config(sdata);
689 #endif
690 break;
691 case NL80211_IFTYPE_STATION:
692 add_sta_files(sdata);
693 break;
694 case NL80211_IFTYPE_ADHOC:
695 add_ibss_files(sdata);
696 break;
697 case NL80211_IFTYPE_AP:
698 add_ap_files(sdata);
699 break;
700 case NL80211_IFTYPE_WDS:
701 add_wds_files(sdata);
702 break;
703 default:
704 break;
705 }
706 }
707
708 void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata)
709 {
710 char buf[10+IFNAMSIZ];
711
712 sprintf(buf, "netdev:%s", sdata->name);
713 sdata->vif.debugfs_dir = debugfs_create_dir(buf,
714 sdata->local->hw.wiphy->debugfsdir);
715 if (sdata->vif.debugfs_dir)
716 sdata->debugfs.subdir_stations = debugfs_create_dir("stations",
717 sdata->vif.debugfs_dir);
718 add_files(sdata);
719 }
720
721 void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata)
722 {
723 if (!sdata->vif.debugfs_dir)
724 return;
725
726 debugfs_remove_recursive(sdata->vif.debugfs_dir);
727 sdata->vif.debugfs_dir = NULL;
728 }
729
730 void ieee80211_debugfs_rename_netdev(struct ieee80211_sub_if_data *sdata)
731 {
732 struct dentry *dir;
733 char buf[10 + IFNAMSIZ];
734
735 dir = sdata->vif.debugfs_dir;
736
737 if (!dir)
738 return;
739
740 sprintf(buf, "netdev:%s", sdata->name);
741 if (!debugfs_rename(dir->d_parent, dir, dir->d_parent, buf))
742 sdata_err(sdata,
743 "debugfs: failed to rename debugfs dir to %s\n",
744 buf);
745 }
Linux kernel - Deliverables
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