Linux Kernel  3.7.1
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
debugfs_netdev.c
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2006 Jiri Benc <[email protected]>
3  * Copyright 2007 Johannes Berg <[email protected]>
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/interrupt.h>
14 #include <linux/netdevice.h>
15 #include <linux/rtnetlink.h>
16 #include <linux/slab.h>
17 #include <linux/notifier.h>
18 #include <net/mac80211.h>
19 #include <net/cfg80211.h>
20 #include "ieee80211_i.h"
21 #include "rate.h"
22 #include "debugfs.h"
23 #include "debugfs_netdev.h"
24 #include "driver-ops.h"
25 
26 static ssize_t ieee80211_if_read(
27  struct ieee80211_sub_if_data *sdata,
28  char __user *userbuf,
29  size_t count, loff_t *ppos,
30  ssize_t (*format)(const struct ieee80211_sub_if_data *, char *, int))
31 {
32  char buf[70];
33  ssize_t ret = -EINVAL;
34 
35  read_lock(&dev_base_lock);
36  if (sdata->dev->reg_state == NETREG_REGISTERED)
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  if (sdata->dev->reg_state == NETREG_REGISTERED)
65  ret = (*write)(sdata, buf, count);
66  rtnl_unlock();
67 
68  return ret;
69 }
70 
71 #define IEEE80211_IF_FMT(name, field, format_string) \
72 static ssize_t ieee80211_if_fmt_##name( \
73  const struct ieee80211_sub_if_data *sdata, char *buf, \
74  int buflen) \
75 { \
76  return scnprintf(buf, buflen, format_string, sdata->field); \
77 }
78 #define IEEE80211_IF_FMT_DEC(name, field) \
79  IEEE80211_IF_FMT(name, field, "%d\n")
80 #define IEEE80211_IF_FMT_HEX(name, field) \
81  IEEE80211_IF_FMT(name, field, "%#x\n")
82 #define IEEE80211_IF_FMT_LHEX(name, field) \
83  IEEE80211_IF_FMT(name, field, "%#lx\n")
84 #define IEEE80211_IF_FMT_SIZE(name, field) \
85  IEEE80211_IF_FMT(name, field, "%zd\n")
86 
87 #define IEEE80211_IF_FMT_HEXARRAY(name, field) \
88 static ssize_t ieee80211_if_fmt_##name( \
89  const struct ieee80211_sub_if_data *sdata, \
90  char *buf, int buflen) \
91 { \
92  char *p = buf; \
93  int i; \
94  for (i = 0; i < sizeof(sdata->field); i++) { \
95  p += scnprintf(p, buflen + buf - p, "%.2x ", \
96  sdata->field[i]); \
97  } \
98  p += scnprintf(p, buflen + buf - p, "\n"); \
99  return p - buf; \
100 }
101 
102 #define IEEE80211_IF_FMT_ATOMIC(name, field) \
103 static ssize_t ieee80211_if_fmt_##name( \
104  const struct ieee80211_sub_if_data *sdata, \
105  char *buf, int buflen) \
106 { \
107  return scnprintf(buf, buflen, "%d\n", atomic_read(&sdata->field));\
108 }
109 
110 #define IEEE80211_IF_FMT_MAC(name, field) \
111 static ssize_t ieee80211_if_fmt_##name( \
112  const struct ieee80211_sub_if_data *sdata, char *buf, \
113  int buflen) \
114 { \
115  return scnprintf(buf, buflen, "%pM\n", sdata->field); \
116 }
117 
118 #define IEEE80211_IF_FMT_DEC_DIV_16(name, field) \
119 static ssize_t ieee80211_if_fmt_##name( \
120  const struct ieee80211_sub_if_data *sdata, \
121  char *buf, int buflen) \
122 { \
123  return scnprintf(buf, buflen, "%d\n", sdata->field / 16); \
124 }
125 
126 #define __IEEE80211_IF_FILE(name, _write) \
127 static ssize_t ieee80211_if_read_##name(struct file *file, \
128  char __user *userbuf, \
129  size_t count, loff_t *ppos) \
130 { \
131  return ieee80211_if_read(file->private_data, \
132  userbuf, count, ppos, \
133  ieee80211_if_fmt_##name); \
134 } \
135 static const struct file_operations name##_ops = { \
136  .read = ieee80211_if_read_##name, \
137  .write = (_write), \
138  .open = simple_open, \
139  .llseek = generic_file_llseek, \
140 }
141 
142 #define __IEEE80211_IF_FILE_W(name) \
143 static ssize_t ieee80211_if_write_##name(struct file *file, \
144  const char __user *userbuf, \
145  size_t count, loff_t *ppos) \
146 { \
147  return ieee80211_if_write(file->private_data, userbuf, count, \
148  ppos, ieee80211_if_parse_##name); \
149 } \
150 __IEEE80211_IF_FILE(name, ieee80211_if_write_##name)
151 
152 
153 #define IEEE80211_IF_FILE(name, field, format) \
154  IEEE80211_IF_FMT_##format(name, field) \
155  __IEEE80211_IF_FILE(name, NULL)
156 
157 /* common attributes */
158 IEEE80211_IF_FILE(drop_unencrypted, drop_unencrypted, DEC);
159 IEEE80211_IF_FILE(rc_rateidx_mask_2ghz, rc_rateidx_mask[IEEE80211_BAND_2GHZ],
160  HEX);
161 IEEE80211_IF_FILE(rc_rateidx_mask_5ghz, rc_rateidx_mask[IEEE80211_BAND_5GHZ],
162  HEX);
163 IEEE80211_IF_FILE(rc_rateidx_mcs_mask_2ghz,
164  rc_rateidx_mcs_mask[IEEE80211_BAND_2GHZ], HEXARRAY);
165 IEEE80211_IF_FILE(rc_rateidx_mcs_mask_5ghz,
166  rc_rateidx_mcs_mask[IEEE80211_BAND_5GHZ], HEXARRAY);
167 
168 IEEE80211_IF_FILE(flags, flags, HEX);
169 IEEE80211_IF_FILE(state, state, LHEX);
170 IEEE80211_IF_FILE(channel_type, vif.bss_conf.channel_type, DEC);
171 
172 /* STA attributes */
173 IEEE80211_IF_FILE(bssid, u.mgd.bssid, MAC);
174 IEEE80211_IF_FILE(aid, u.mgd.aid, DEC);
175 IEEE80211_IF_FILE(last_beacon, u.mgd.last_beacon_signal, DEC);
176 IEEE80211_IF_FILE(ave_beacon, u.mgd.ave_beacon_signal, DEC_DIV_16);
177 
178 static int ieee80211_set_smps(struct ieee80211_sub_if_data *sdata,
179  enum ieee80211_smps_mode smps_mode)
180 {
181  struct ieee80211_local *local = sdata->local;
182  int err;
183 
184  if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_STATIC_SMPS) &&
185  smps_mode == IEEE80211_SMPS_STATIC)
186  return -EINVAL;
187 
188  /* auto should be dynamic if in PS mode */
189  if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS) &&
190  (smps_mode == IEEE80211_SMPS_DYNAMIC ||
191  smps_mode == IEEE80211_SMPS_AUTOMATIC))
192  return -EINVAL;
193 
194  /* supported only on managed interfaces for now */
195  if (sdata->vif.type != NL80211_IFTYPE_STATION)
196  return -EOPNOTSUPP;
197 
198  mutex_lock(&sdata->u.mgd.mtx);
199  err = __ieee80211_request_smps(sdata, smps_mode);
200  mutex_unlock(&sdata->u.mgd.mtx);
201 
202  return err;
203 }
204 
205 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
206  [IEEE80211_SMPS_AUTOMATIC] = "auto",
207  [IEEE80211_SMPS_OFF] = "off",
208  [IEEE80211_SMPS_STATIC] = "static",
209  [IEEE80211_SMPS_DYNAMIC] = "dynamic",
210 };
211 
212 static ssize_t ieee80211_if_fmt_smps(const struct ieee80211_sub_if_data *sdata,
213  char *buf, int buflen)
214 {
215  if (sdata->vif.type != NL80211_IFTYPE_STATION)
216  return -EOPNOTSUPP;
217 
218  return snprintf(buf, buflen, "request: %s\nused: %s\n",
219  smps_modes[sdata->u.mgd.req_smps],
220  smps_modes[sdata->u.mgd.ap_smps]);
221 }
222 
223 static ssize_t ieee80211_if_parse_smps(struct ieee80211_sub_if_data *sdata,
224  const char *buf, int buflen)
225 {
226  enum ieee80211_smps_mode mode;
227 
228  for (mode = 0; mode < IEEE80211_SMPS_NUM_MODES; mode++) {
229  if (strncmp(buf, smps_modes[mode], buflen) == 0) {
230  int err = ieee80211_set_smps(sdata, mode);
231  if (!err)
232  return buflen;
233  return err;
234  }
235  }
236 
237  return -EINVAL;
238 }
239 
240 __IEEE80211_IF_FILE_W(smps);
241 
242 static ssize_t ieee80211_if_fmt_tkip_mic_test(
243  const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
244 {
245  return -EOPNOTSUPP;
246 }
247 
248 static int hwaddr_aton(const char *txt, u8 *addr)
249 {
250  int i;
251 
252  for (i = 0; i < ETH_ALEN; i++) {
253  int a, b;
254 
255  a = hex_to_bin(*txt++);
256  if (a < 0)
257  return -1;
258  b = hex_to_bin(*txt++);
259  if (b < 0)
260  return -1;
261  *addr++ = (a << 4) | b;
262  if (i < 5 && *txt++ != ':')
263  return -1;
264  }
265 
266  return 0;
267 }
268 
269 static ssize_t ieee80211_if_parse_tkip_mic_test(
270  struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
271 {
272  struct ieee80211_local *local = sdata->local;
273  u8 addr[ETH_ALEN];
274  struct sk_buff *skb;
275  struct ieee80211_hdr *hdr;
276  __le16 fc;
277 
278  /*
279  * Assume colon-delimited MAC address with possible white space
280  * following.
281  */
282  if (buflen < 3 * ETH_ALEN - 1)
283  return -EINVAL;
284  if (hwaddr_aton(buf, addr) < 0)
285  return -EINVAL;
286 
287  if (!ieee80211_sdata_running(sdata))
288  return -ENOTCONN;
289 
290  skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24 + 100);
291  if (!skb)
292  return -ENOMEM;
293  skb_reserve(skb, local->hw.extra_tx_headroom);
294 
295  hdr = (struct ieee80211_hdr *) skb_put(skb, 24);
296  memset(hdr, 0, 24);
297  fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA);
298 
299  switch (sdata->vif.type) {
300  case NL80211_IFTYPE_AP:
301  fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS);
302  /* DA BSSID SA */
303  memcpy(hdr->addr1, addr, ETH_ALEN);
304  memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
305  memcpy(hdr->addr3, sdata->vif.addr, ETH_ALEN);
306  break;
307  case NL80211_IFTYPE_STATION:
308  fc |= cpu_to_le16(IEEE80211_FCTL_TODS);
309  /* BSSID SA DA */
310  if (sdata->vif.bss_conf.bssid == NULL) {
311  dev_kfree_skb(skb);
312  return -ENOTCONN;
313  }
314  memcpy(hdr->addr1, sdata->vif.bss_conf.bssid, ETH_ALEN);
315  memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
316  memcpy(hdr->addr3, addr, ETH_ALEN);
317  break;
318  default:
319  dev_kfree_skb(skb);
320  return -EOPNOTSUPP;
321  }
322  hdr->frame_control = fc;
323 
324  /*
325  * Add some length to the test frame to make it look bit more valid.
326  * The exact contents does not matter since the recipient is required
327  * to drop this because of the Michael MIC failure.
328  */
329  memset(skb_put(skb, 50), 0, 50);
330 
331  IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_TKIP_MIC_FAILURE;
332 
333  ieee80211_tx_skb(sdata, skb);
334 
335  return buflen;
336 }
337 
338 __IEEE80211_IF_FILE_W(tkip_mic_test);
339 
340 static ssize_t ieee80211_if_fmt_uapsd_queues(
341  const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
342 {
343  const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
344 
345  return snprintf(buf, buflen, "0x%x\n", ifmgd->uapsd_queues);
346 }
347 
348 static ssize_t ieee80211_if_parse_uapsd_queues(
349  struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
350 {
351  struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
352  u8 val;
353  int ret;
354 
355  ret = kstrtou8(buf, 0, &val);
356  if (ret)
357  return ret;
358 
359  if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
360  return -ERANGE;
361 
362  ifmgd->uapsd_queues = val;
363 
364  return buflen;
365 }
366 __IEEE80211_IF_FILE_W(uapsd_queues);
367 
368 static ssize_t ieee80211_if_fmt_uapsd_max_sp_len(
369  const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
370 {
371  const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
372 
373  return snprintf(buf, buflen, "0x%x\n", ifmgd->uapsd_max_sp_len);
374 }
375 
376 static ssize_t ieee80211_if_parse_uapsd_max_sp_len(
377  struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
378 {
379  struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
380  unsigned long val;
381  int ret;
382 
383  ret = kstrtoul(buf, 0, &val);
384  if (ret)
385  return -EINVAL;
386 
387  if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
388  return -ERANGE;
389 
390  ifmgd->uapsd_max_sp_len = val;
391 
392  return buflen;
393 }
394 __IEEE80211_IF_FILE_W(uapsd_max_sp_len);
395 
396 /* AP attributes */
397 IEEE80211_IF_FILE(num_mcast_sta, u.ap.num_mcast_sta, ATOMIC);
398 IEEE80211_IF_FILE(num_sta_ps, u.ap.num_sta_ps, ATOMIC);
399 IEEE80211_IF_FILE(dtim_count, u.ap.dtim_count, DEC);
400 
401 static ssize_t ieee80211_if_fmt_num_buffered_multicast(
402  const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
403 {
404  return scnprintf(buf, buflen, "%u\n",
405  skb_queue_len(&sdata->u.ap.ps_bc_buf));
406 }
407 __IEEE80211_IF_FILE(num_buffered_multicast, NULL);
408 
409 /* IBSS attributes */
410 static ssize_t ieee80211_if_fmt_tsf(
411  const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
412 {
413  struct ieee80211_local *local = sdata->local;
414  u64 tsf;
415 
416  tsf = drv_get_tsf(local, (struct ieee80211_sub_if_data *)sdata);
417 
418  return scnprintf(buf, buflen, "0x%016llx\n", (unsigned long long) tsf);
419 }
420 
421 static ssize_t ieee80211_if_parse_tsf(
422  struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
423 {
424  struct ieee80211_local *local = sdata->local;
425  unsigned long long tsf;
426  int ret;
427  int tsf_is_delta = 0;
428 
429  if (strncmp(buf, "reset", 5) == 0) {
430  if (local->ops->reset_tsf) {
431  drv_reset_tsf(local, sdata);
432  wiphy_info(local->hw.wiphy, "debugfs reset TSF\n");
433  }
434  } else {
435  if (buflen > 10 && buf[1] == '=') {
436  if (buf[0] == '+')
437  tsf_is_delta = 1;
438  else if (buf[0] == '-')
439  tsf_is_delta = -1;
440  else
441  return -EINVAL;
442  buf += 2;
443  }
444  ret = kstrtoull(buf, 10, &tsf);
445  if (ret < 0)
446  return -EINVAL;
447  if (tsf_is_delta)
448  tsf = drv_get_tsf(local, sdata) + tsf_is_delta * tsf;
449  if (local->ops->set_tsf) {
450  drv_set_tsf(local, sdata, tsf);
451  wiphy_info(local->hw.wiphy,
452  "debugfs set TSF to %#018llx\n", tsf);
453  }
454  }
455 
456  return buflen;
457 }
458 __IEEE80211_IF_FILE_W(tsf);
459 
460 
461 /* WDS attributes */
462 IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC);
463 
464 #ifdef CONFIG_MAC80211_MESH
465 /* Mesh stats attributes */
466 IEEE80211_IF_FILE(fwded_mcast, u.mesh.mshstats.fwded_mcast, DEC);
467 IEEE80211_IF_FILE(fwded_unicast, u.mesh.mshstats.fwded_unicast, DEC);
468 IEEE80211_IF_FILE(fwded_frames, u.mesh.mshstats.fwded_frames, DEC);
469 IEEE80211_IF_FILE(dropped_frames_ttl, u.mesh.mshstats.dropped_frames_ttl, DEC);
470 IEEE80211_IF_FILE(dropped_frames_congestion,
471  u.mesh.mshstats.dropped_frames_congestion, DEC);
472 IEEE80211_IF_FILE(dropped_frames_no_route,
473  u.mesh.mshstats.dropped_frames_no_route, DEC);
474 IEEE80211_IF_FILE(estab_plinks, u.mesh.mshstats.estab_plinks, ATOMIC);
475 
476 /* Mesh parameters */
477 IEEE80211_IF_FILE(dot11MeshMaxRetries,
478  u.mesh.mshcfg.dot11MeshMaxRetries, DEC);
479 IEEE80211_IF_FILE(dot11MeshRetryTimeout,
480  u.mesh.mshcfg.dot11MeshRetryTimeout, DEC);
481 IEEE80211_IF_FILE(dot11MeshConfirmTimeout,
482  u.mesh.mshcfg.dot11MeshConfirmTimeout, DEC);
483 IEEE80211_IF_FILE(dot11MeshHoldingTimeout,
484  u.mesh.mshcfg.dot11MeshHoldingTimeout, DEC);
485 IEEE80211_IF_FILE(dot11MeshTTL, u.mesh.mshcfg.dot11MeshTTL, DEC);
486 IEEE80211_IF_FILE(element_ttl, u.mesh.mshcfg.element_ttl, DEC);
487 IEEE80211_IF_FILE(auto_open_plinks, u.mesh.mshcfg.auto_open_plinks, DEC);
488 IEEE80211_IF_FILE(dot11MeshMaxPeerLinks,
489  u.mesh.mshcfg.dot11MeshMaxPeerLinks, DEC);
490 IEEE80211_IF_FILE(dot11MeshHWMPactivePathTimeout,
491  u.mesh.mshcfg.dot11MeshHWMPactivePathTimeout, DEC);
492 IEEE80211_IF_FILE(dot11MeshHWMPpreqMinInterval,
493  u.mesh.mshcfg.dot11MeshHWMPpreqMinInterval, DEC);
494 IEEE80211_IF_FILE(dot11MeshHWMPperrMinInterval,
495  u.mesh.mshcfg.dot11MeshHWMPperrMinInterval, DEC);
496 IEEE80211_IF_FILE(dot11MeshHWMPnetDiameterTraversalTime,
497  u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime, DEC);
498 IEEE80211_IF_FILE(dot11MeshHWMPmaxPREQretries,
499  u.mesh.mshcfg.dot11MeshHWMPmaxPREQretries, DEC);
500 IEEE80211_IF_FILE(path_refresh_time,
501  u.mesh.mshcfg.path_refresh_time, DEC);
502 IEEE80211_IF_FILE(min_discovery_timeout,
503  u.mesh.mshcfg.min_discovery_timeout, DEC);
504 IEEE80211_IF_FILE(dot11MeshHWMPRootMode,
505  u.mesh.mshcfg.dot11MeshHWMPRootMode, DEC);
506 IEEE80211_IF_FILE(dot11MeshGateAnnouncementProtocol,
507  u.mesh.mshcfg.dot11MeshGateAnnouncementProtocol, DEC);
508 IEEE80211_IF_FILE(dot11MeshHWMPRannInterval,
509  u.mesh.mshcfg.dot11MeshHWMPRannInterval, DEC);
510 IEEE80211_IF_FILE(dot11MeshForwarding, u.mesh.mshcfg.dot11MeshForwarding, DEC);
511 IEEE80211_IF_FILE(rssi_threshold, u.mesh.mshcfg.rssi_threshold, DEC);
512 IEEE80211_IF_FILE(ht_opmode, u.mesh.mshcfg.ht_opmode, DEC);
513 IEEE80211_IF_FILE(dot11MeshHWMPactivePathToRootTimeout,
514  u.mesh.mshcfg.dot11MeshHWMPactivePathToRootTimeout, DEC);
515 IEEE80211_IF_FILE(dot11MeshHWMProotInterval,
516  u.mesh.mshcfg.dot11MeshHWMProotInterval, DEC);
517 IEEE80211_IF_FILE(dot11MeshHWMPconfirmationInterval,
518  u.mesh.mshcfg.dot11MeshHWMPconfirmationInterval, DEC);
519 #endif
520 
521 #define DEBUGFS_ADD_MODE(name, mode) \
522  debugfs_create_file(#name, mode, sdata->debugfs.dir, \
523  sdata, &name##_ops);
524 
525 #define DEBUGFS_ADD(name) DEBUGFS_ADD_MODE(name, 0400)
526 
527 static void add_common_files(struct ieee80211_sub_if_data *sdata)
528 {
529  DEBUGFS_ADD(drop_unencrypted);
530  DEBUGFS_ADD(rc_rateidx_mask_2ghz);
531  DEBUGFS_ADD(rc_rateidx_mask_5ghz);
532  DEBUGFS_ADD(rc_rateidx_mcs_mask_2ghz);
533  DEBUGFS_ADD(rc_rateidx_mcs_mask_5ghz);
534 }
535 
536 static void add_sta_files(struct ieee80211_sub_if_data *sdata)
537 {
538  DEBUGFS_ADD(bssid);
539  DEBUGFS_ADD(aid);
540  DEBUGFS_ADD(last_beacon);
541  DEBUGFS_ADD(ave_beacon);
542  DEBUGFS_ADD_MODE(smps, 0600);
543  DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
544  DEBUGFS_ADD_MODE(uapsd_queues, 0600);
545  DEBUGFS_ADD_MODE(uapsd_max_sp_len, 0600);
546 }
547 
548 static void add_ap_files(struct ieee80211_sub_if_data *sdata)
549 {
550  DEBUGFS_ADD(num_mcast_sta);
551  DEBUGFS_ADD(num_sta_ps);
552  DEBUGFS_ADD(dtim_count);
553  DEBUGFS_ADD(num_buffered_multicast);
554  DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
555 }
556 
557 static void add_ibss_files(struct ieee80211_sub_if_data *sdata)
558 {
559  DEBUGFS_ADD_MODE(tsf, 0600);
560 }
561 
562 static void add_wds_files(struct ieee80211_sub_if_data *sdata)
563 {
564  DEBUGFS_ADD(peer);
565 }
566 
567 #ifdef CONFIG_MAC80211_MESH
568 
569 static void add_mesh_files(struct ieee80211_sub_if_data *sdata)
570 {
571  DEBUGFS_ADD_MODE(tsf, 0600);
572 }
573 
574 static void add_mesh_stats(struct ieee80211_sub_if_data *sdata)
575 {
576  struct dentry *dir = debugfs_create_dir("mesh_stats",
577  sdata->debugfs.dir);
578 #define MESHSTATS_ADD(name)\
579  debugfs_create_file(#name, 0400, dir, sdata, &name##_ops);
580 
581  MESHSTATS_ADD(fwded_mcast);
582  MESHSTATS_ADD(fwded_unicast);
583  MESHSTATS_ADD(fwded_frames);
584  MESHSTATS_ADD(dropped_frames_ttl);
585  MESHSTATS_ADD(dropped_frames_no_route);
586  MESHSTATS_ADD(dropped_frames_congestion);
587  MESHSTATS_ADD(estab_plinks);
588 #undef MESHSTATS_ADD
589 }
590 
591 static void add_mesh_config(struct ieee80211_sub_if_data *sdata)
592 {
593  struct dentry *dir = debugfs_create_dir("mesh_config",
594  sdata->debugfs.dir);
595 
596 #define MESHPARAMS_ADD(name) \
597  debugfs_create_file(#name, 0600, dir, sdata, &name##_ops);
598 
599  MESHPARAMS_ADD(dot11MeshMaxRetries);
600  MESHPARAMS_ADD(dot11MeshRetryTimeout);
601  MESHPARAMS_ADD(dot11MeshConfirmTimeout);
602  MESHPARAMS_ADD(dot11MeshHoldingTimeout);
603  MESHPARAMS_ADD(dot11MeshTTL);
604  MESHPARAMS_ADD(element_ttl);
605  MESHPARAMS_ADD(auto_open_plinks);
606  MESHPARAMS_ADD(dot11MeshMaxPeerLinks);
607  MESHPARAMS_ADD(dot11MeshHWMPactivePathTimeout);
608  MESHPARAMS_ADD(dot11MeshHWMPpreqMinInterval);
609  MESHPARAMS_ADD(dot11MeshHWMPperrMinInterval);
610  MESHPARAMS_ADD(dot11MeshHWMPnetDiameterTraversalTime);
611  MESHPARAMS_ADD(dot11MeshHWMPmaxPREQretries);
612  MESHPARAMS_ADD(path_refresh_time);
613  MESHPARAMS_ADD(min_discovery_timeout);
614  MESHPARAMS_ADD(dot11MeshHWMPRootMode);
615  MESHPARAMS_ADD(dot11MeshHWMPRannInterval);
616  MESHPARAMS_ADD(dot11MeshForwarding);
617  MESHPARAMS_ADD(dot11MeshGateAnnouncementProtocol);
618  MESHPARAMS_ADD(rssi_threshold);
619  MESHPARAMS_ADD(ht_opmode);
620  MESHPARAMS_ADD(dot11MeshHWMPactivePathToRootTimeout);
621  MESHPARAMS_ADD(dot11MeshHWMProotInterval);
622  MESHPARAMS_ADD(dot11MeshHWMPconfirmationInterval);
623 #undef MESHPARAMS_ADD
624 }
625 #endif
626 
627 static void add_files(struct ieee80211_sub_if_data *sdata)
628 {
629  if (!sdata->debugfs.dir)
630  return;
631 
632  DEBUGFS_ADD(flags);
633  DEBUGFS_ADD(state);
634  DEBUGFS_ADD(channel_type);
635 
636  if (sdata->vif.type != NL80211_IFTYPE_MONITOR)
637  add_common_files(sdata);
638 
639  switch (sdata->vif.type) {
640  case NL80211_IFTYPE_MESH_POINT:
641 #ifdef CONFIG_MAC80211_MESH
642  add_mesh_files(sdata);
643  add_mesh_stats(sdata);
644  add_mesh_config(sdata);
645 #endif
646  break;
647  case NL80211_IFTYPE_STATION:
648  add_sta_files(sdata);
649  break;
650  case NL80211_IFTYPE_ADHOC:
651  add_ibss_files(sdata);
652  break;
653  case NL80211_IFTYPE_AP:
654  add_ap_files(sdata);
655  break;
656  case NL80211_IFTYPE_WDS:
657  add_wds_files(sdata);
658  break;
659  default:
660  break;
661  }
662 }
663 
664 void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata)
665 {
666  char buf[10+IFNAMSIZ];
667 
668  sprintf(buf, "netdev:%s", sdata->name);
669  sdata->debugfs.dir = debugfs_create_dir(buf,
670  sdata->local->hw.wiphy->debugfsdir);
671  if (sdata->debugfs.dir)
672  sdata->debugfs.subdir_stations = debugfs_create_dir("stations",
673  sdata->debugfs.dir);
674  add_files(sdata);
675 }
676 
677 void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata)
678 {
679  if (!sdata->debugfs.dir)
680  return;
681 
682  debugfs_remove_recursive(sdata->debugfs.dir);
683  sdata->debugfs.dir = NULL;
684 }
685 
686 void ieee80211_debugfs_rename_netdev(struct ieee80211_sub_if_data *sdata)
687 {
688  struct dentry *dir;
689  char buf[10 + IFNAMSIZ];
690 
691  dir = sdata->debugfs.dir;
692 
693  if (!dir)
694  return;
695 
696  sprintf(buf, "netdev:%s", sdata->name);
697  if (!debugfs_rename(dir->d_parent, dir, dir->d_parent, buf))
698  sdata_err(sdata,
699  "debugfs: failed to rename debugfs dir to %s\n",
700  buf);
701 }
Generated on Thu Jan 10 2013 14:59:56 for Linux Kernel by   doxygen 1.8.2