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(rc_rateidx_mask_2ghz, rc_rateidx_mask[IEEE80211_BAND_2GHZ],
 181                   HEX);
 182 IEEE80211_IF_FILE(rc_rateidx_mask_5ghz, rc_rateidx_mask[IEEE80211_BAND_5GHZ],
 183                   HEX);
 184 IEEE80211_IF_FILE(rc_rateidx_mcs_mask_2ghz,
 185                   rc_rateidx_mcs_mask[IEEE80211_BAND_2GHZ], HEXARRAY);
 186 IEEE80211_IF_FILE(rc_rateidx_mcs_mask_5ghz,
 187                   rc_rateidx_mcs_mask[IEEE80211_BAND_5GHZ], HEXARRAY);
 188
 189 static ssize_t ieee80211_if_fmt_rc_rateidx_vht_mcs_mask_2ghz(
 190                                 const struct ieee80211_sub_if_data *sdata,
 191                                 char *buf, int buflen)
 192 {
 193         int i, len = 0;
 194         const u16 *mask = sdata->rc_rateidx_vht_mcs_mask[IEEE80211_BAND_2GHZ];
 195
 196         for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
 197                 len += scnprintf(buf + len, buflen - len, "%04x ", mask[i]);
 198         len += scnprintf(buf + len, buflen - len, "\n");
 199
 200         return len;
 201 }
 202
 203 IEEE80211_IF_FILE_R(rc_rateidx_vht_mcs_mask_2ghz);
 204
 205 static ssize_t ieee80211_if_fmt_rc_rateidx_vht_mcs_mask_5ghz(
 206                                 const struct ieee80211_sub_if_data *sdata,
 207                                 char *buf, int buflen)
 208 {
 209         int i, len = 0;
 210         const u16 *mask = sdata->rc_rateidx_vht_mcs_mask[IEEE80211_BAND_5GHZ];
 211
 212         for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
 213                 len += scnprintf(buf + len, buflen - len, "%04x ", mask[i]);
 214         len += scnprintf(buf + len, buflen - len, "\n");
 215
 216         return len;
 217 }
 218
 219 IEEE80211_IF_FILE_R(rc_rateidx_vht_mcs_mask_5ghz);
 220
 221 IEEE80211_IF_FILE(flags, flags, HEX);
 222 IEEE80211_IF_FILE(state, state, LHEX);
 223 IEEE80211_IF_FILE(txpower, vif.bss_conf.txpower, DEC);
 224 IEEE80211_IF_FILE(ap_power_level, ap_power_level, DEC);
 225 IEEE80211_IF_FILE(user_power_level, user_power_level, DEC);
 226
 227 static ssize_t
 228 ieee80211_if_fmt_hw_queues(const struct ieee80211_sub_if_data *sdata,
 229                            char *buf, int buflen)
 230 {
 231         int len;
 232
 233         len = scnprintf(buf, buflen, "AC queues: VO:%d VI:%d BE:%d BK:%d\n",
 234                         sdata->vif.hw_queue[IEEE80211_AC_VO],
 235                         sdata->vif.hw_queue[IEEE80211_AC_VI],
 236                         sdata->vif.hw_queue[IEEE80211_AC_BE],
 237                         sdata->vif.hw_queue[IEEE80211_AC_BK]);
 238
 239         if (sdata->vif.type == NL80211_IFTYPE_AP)
 240                 len += scnprintf(buf + len, buflen - len, "cab queue: %d\n",
 241                                  sdata->vif.cab_queue);
 242
 243         return len;
 244 }
 245 IEEE80211_IF_FILE_R(hw_queues);
 246
 247 /* STA attributes */
 248 IEEE80211_IF_FILE(bssid, u.mgd.bssid, MAC);
 249 IEEE80211_IF_FILE(aid, u.mgd.aid, DEC);
 250 IEEE80211_IF_FILE(last_beacon, u.mgd.last_beacon_signal, DEC);
 251 IEEE80211_IF_FILE(ave_beacon, u.mgd.ave_beacon_signal, DEC_DIV_16);
 252 IEEE80211_IF_FILE(beacon_timeout, u.mgd.beacon_timeout, JIFFIES_TO_MS);
 253
 254 static int ieee80211_set_smps(struct ieee80211_sub_if_data *sdata,
 255                               enum ieee80211_smps_mode smps_mode)
 256 {
 257         struct ieee80211_local *local = sdata->local;
 258         int err;
 259
 260         if (!(local->hw.wiphy->features & NL80211_FEATURE_STATIC_SMPS) &&
 261             smps_mode == IEEE80211_SMPS_STATIC)
 262                 return -EINVAL;
 263
 264         /* auto should be dynamic if in PS mode */
 265         if (!(local->hw.wiphy->features & NL80211_FEATURE_DYNAMIC_SMPS) &&
 266             (smps_mode == IEEE80211_SMPS_DYNAMIC ||
 267              smps_mode == IEEE80211_SMPS_AUTOMATIC))
 268                 return -EINVAL;
 269
 270         if (sdata->vif.type != NL80211_IFTYPE_STATION &&
 271             sdata->vif.type != NL80211_IFTYPE_AP)
 272                 return -EOPNOTSUPP;
 273
 274         sdata_lock(sdata);
 275         if (sdata->vif.type == NL80211_IFTYPE_STATION)
 276                 err = __ieee80211_request_smps_mgd(sdata, smps_mode);
 277         else
 278                 err = __ieee80211_request_smps_ap(sdata, smps_mode);
 279         sdata_unlock(sdata);
 280
 281         return err;
 282 }
 283
 284 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
 285         [IEEE80211_SMPS_AUTOMATIC] = "auto",
 286         [IEEE80211_SMPS_OFF] = "off",
 287         [IEEE80211_SMPS_STATIC] = "static",
 288         [IEEE80211_SMPS_DYNAMIC] = "dynamic",
 289 };
 290
 291 static ssize_t ieee80211_if_fmt_smps(const struct ieee80211_sub_if_data *sdata,
 292                                      char *buf, int buflen)
 293 {
 294         if (sdata->vif.type == NL80211_IFTYPE_STATION)
 295                 return snprintf(buf, buflen, "request: %s\nused: %s\n",
 296                                 smps_modes[sdata->u.mgd.req_smps],
 297                                 smps_modes[sdata->smps_mode]);
 298         if (sdata->vif.type == NL80211_IFTYPE_AP)
 299                 return snprintf(buf, buflen, "request: %s\nused: %s\n",
 300                                 smps_modes[sdata->u.ap.req_smps],
 301                                 smps_modes[sdata->smps_mode]);
 302         return -EINVAL;
 303 }
 304
 305 static ssize_t ieee80211_if_parse_smps(struct ieee80211_sub_if_data *sdata,
 306                                        const char *buf, int buflen)
 307 {
 308         enum ieee80211_smps_mode mode;
 309
 310         for (mode = 0; mode < IEEE80211_SMPS_NUM_MODES; mode++) {
 311                 if (strncmp(buf, smps_modes[mode], buflen) == 0) {
 312                         int err = ieee80211_set_smps(sdata, mode);
 313                         if (!err)
 314                                 return buflen;
 315                         return err;
 316                 }
 317         }
 318
 319         return -EINVAL;
 320 }
 321 IEEE80211_IF_FILE_RW(smps);
 322
 323 static ssize_t ieee80211_if_parse_tkip_mic_test(
 324         struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
 325 {
 326         struct ieee80211_local *local = sdata->local;
 327         u8 addr[ETH_ALEN];
 328         struct sk_buff *skb;
 329         struct ieee80211_hdr *hdr;
 330         __le16 fc;
 331
 332         if (!mac_pton(buf, addr))
 333                 return -EINVAL;
 334
 335         if (!ieee80211_sdata_running(sdata))
 336                 return -ENOTCONN;
 337
 338         skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24 + 100);
 339         if (!skb)
 340                 return -ENOMEM;
 341         skb_reserve(skb, local->hw.extra_tx_headroom);
 342
 343         hdr = (struct ieee80211_hdr *) skb_put(skb, 24);
 344         memset(hdr, 0, 24);
 345         fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA);
 346
 347         switch (sdata->vif.type) {
 348         case NL80211_IFTYPE_AP:
 349                 fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS);
 350                 /* DA BSSID SA */
 351                 memcpy(hdr->addr1, addr, ETH_ALEN);
 352                 memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
 353                 memcpy(hdr->addr3, sdata->vif.addr, ETH_ALEN);
 354                 break;
 355         case NL80211_IFTYPE_STATION:
 356                 fc |= cpu_to_le16(IEEE80211_FCTL_TODS);
 357                 /* BSSID SA DA */
 358                 sdata_lock(sdata);
 359                 if (!sdata->u.mgd.associated) {
 360                         sdata_unlock(sdata);
 361                         dev_kfree_skb(skb);
 362                         return -ENOTCONN;
 363                 }
 364                 memcpy(hdr->addr1, sdata->u.mgd.associated->bssid, ETH_ALEN);
 365                 memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
 366                 memcpy(hdr->addr3, addr, ETH_ALEN);
 367                 sdata_unlock(sdata);
 368                 break;
 369         default:
 370                 dev_kfree_skb(skb);
 371                 return -EOPNOTSUPP;
 372         }
 373         hdr->frame_control = fc;
 374
 375         /*
 376          * Add some length to the test frame to make it look bit more valid.
 377          * The exact contents does not matter since the recipient is required
 378          * to drop this because of the Michael MIC failure.
 379          */
 380         memset(skb_put(skb, 50), 0, 50);
 381
 382         IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_TKIP_MIC_FAILURE;
 383
 384         ieee80211_tx_skb(sdata, skb);
 385
 386         return buflen;
 387 }
 388 IEEE80211_IF_FILE_W(tkip_mic_test);
 389
 390 static ssize_t ieee80211_if_parse_beacon_loss(
 391         struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
 392 {
 393         if (!ieee80211_sdata_running(sdata) || !sdata->vif.bss_conf.assoc)
 394                 return -ENOTCONN;
 395
 396         ieee80211_beacon_loss(&sdata->vif);
 397
 398         return buflen;
 399 }
 400 IEEE80211_IF_FILE_W(beacon_loss);
 401
 402 static ssize_t ieee80211_if_fmt_uapsd_queues(
 403         const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
 404 {
 405         const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 406
 407         return snprintf(buf, buflen, "0x%x\n", ifmgd->uapsd_queues);
 408 }
 409
 410 static ssize_t ieee80211_if_parse_uapsd_queues(
 411         struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
 412 {
 413         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 414         u8 val;
 415         int ret;
 416
 417         ret = kstrtou8(buf, 0, &val);
 418         if (ret)
 419                 return ret;
 420
 421         if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
 422                 return -ERANGE;
 423
 424         ifmgd->uapsd_queues = val;
 425
 426         return buflen;
 427 }
 428 IEEE80211_IF_FILE_RW(uapsd_queues);
 429
 430 static ssize_t ieee80211_if_fmt_uapsd_max_sp_len(
 431         const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
 432 {
 433         const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 434
 435         return snprintf(buf, buflen, "0x%x\n", ifmgd->uapsd_max_sp_len);
 436 }
 437
 438 static ssize_t ieee80211_if_parse_uapsd_max_sp_len(
 439         struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
 440 {
 441         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 442         unsigned long val;
 443         int ret;
 444
 445         ret = kstrtoul(buf, 0, &val);
 446         if (ret)
 447                 return -EINVAL;
 448
 449         if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
 450                 return -ERANGE;
 451
 452         ifmgd->uapsd_max_sp_len = val;
 453
 454         return buflen;
 455 }
 456 IEEE80211_IF_FILE_RW(uapsd_max_sp_len);
 457
 458 static ssize_t ieee80211_if_fmt_tdls_wider_bw(
 459         const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
 460 {
 461         const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 462         bool tdls_wider_bw;
 463
 464         tdls_wider_bw = ieee80211_hw_check(&sdata->local->hw, TDLS_WIDER_BW) &&
 465                         !ifmgd->tdls_wider_bw_prohibited;
 466
 467         return snprintf(buf, buflen, "%d\n", tdls_wider_bw);
 468 }
 469
 470 static ssize_t ieee80211_if_parse_tdls_wider_bw(
 471         struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
 472 {
 473         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 474         u8 val;
 475         int ret;
 476
 477         ret = kstrtou8(buf, 0, &val);
 478         if (ret)
 479                 return ret;
 480
 481         ifmgd->tdls_wider_bw_prohibited = !val;
 482         return buflen;
 483 }
 484 IEEE80211_IF_FILE_RW(tdls_wider_bw);
 485
 486 /* AP attributes */
 487 IEEE80211_IF_FILE(num_mcast_sta, u.ap.num_mcast_sta, ATOMIC);
 488 IEEE80211_IF_FILE(num_sta_ps, u.ap.ps.num_sta_ps, ATOMIC);
 489 IEEE80211_IF_FILE(dtim_count, u.ap.ps.dtim_count, DEC);
 490
 491 static ssize_t ieee80211_if_fmt_num_buffered_multicast(
 492         const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
 493 {
 494         return scnprintf(buf, buflen, "%u\n",
 495                          skb_queue_len(&sdata->u.ap.ps.bc_buf));
 496 }
 497 IEEE80211_IF_FILE_R(num_buffered_multicast);
 498
 499 /* IBSS attributes */
 500 static ssize_t ieee80211_if_fmt_tsf(
 501         const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
 502 {
 503         struct ieee80211_local *local = sdata->local;
 504         u64 tsf;
 505
 506         tsf = drv_get_tsf(local, (struct ieee80211_sub_if_data *)sdata);
 507
 508         return scnprintf(buf, buflen, "0x%016llx\n", (unsigned long long) tsf);
 509 }
 510
 511 static ssize_t ieee80211_if_parse_tsf(
 512         struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
 513 {
 514         struct ieee80211_local *local = sdata->local;
 515         unsigned long long tsf;
 516         int ret;
 517         int tsf_is_delta = 0;
 518
 519         if (strncmp(buf, "reset", 5) == 0) {
 520                 if (local->ops->reset_tsf) {
 521                         drv_reset_tsf(local, sdata);
 522                         wiphy_info(local->hw.wiphy, "debugfs reset TSF\n");
 523                 }
 524         } else {
 525                 if (buflen > 10 && buf[1] == '=') {
 526                         if (buf[0] == '+')
 527                                 tsf_is_delta = 1;
 528                         else if (buf[0] == '-')
 529                                 tsf_is_delta = -1;
 530                         else
 531                                 return -EINVAL;
 532                         buf += 2;
 533                 }
 534                 ret = kstrtoull(buf, 10, &tsf);
 535                 if (ret < 0)
 536                         return ret;
 537                 if (tsf_is_delta)
 538                         tsf = drv_get_tsf(local, sdata) + tsf_is_delta * tsf;
 539                 if (local->ops->set_tsf) {
 540                         drv_set_tsf(local, sdata, tsf);
 541                         wiphy_info(local->hw.wiphy,
 542                                    "debugfs set TSF to %#018llx\n", tsf);
 543                 }
 544         }
 545
 546         ieee80211_recalc_dtim(local, sdata);
 547         return buflen;
 548 }
 549 IEEE80211_IF_FILE_RW(tsf);
 550
 551
 552 /* WDS attributes */
 553 IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC);
 554
 555 #ifdef CONFIG_MAC80211_MESH
 556 IEEE80211_IF_FILE(estab_plinks, u.mesh.estab_plinks, ATOMIC);
 557
 558 /* Mesh stats attributes */
 559 IEEE80211_IF_FILE(fwded_mcast, u.mesh.mshstats.fwded_mcast, DEC);
 560 IEEE80211_IF_FILE(fwded_unicast, u.mesh.mshstats.fwded_unicast, DEC);
 561 IEEE80211_IF_FILE(fwded_frames, u.mesh.mshstats.fwded_frames, DEC);
 562 IEEE80211_IF_FILE(dropped_frames_ttl, u.mesh.mshstats.dropped_frames_ttl, DEC);
 563 IEEE80211_IF_FILE(dropped_frames_congestion,
 564                   u.mesh.mshstats.dropped_frames_congestion, DEC);
 565 IEEE80211_IF_FILE(dropped_frames_no_route,
 566                   u.mesh.mshstats.dropped_frames_no_route, DEC);
 567
 568 /* Mesh parameters */
 569 IEEE80211_IF_FILE(dot11MeshMaxRetries,
 570                   u.mesh.mshcfg.dot11MeshMaxRetries, DEC);
 571 IEEE80211_IF_FILE(dot11MeshRetryTimeout,
 572                   u.mesh.mshcfg.dot11MeshRetryTimeout, DEC);
 573 IEEE80211_IF_FILE(dot11MeshConfirmTimeout,
 574                   u.mesh.mshcfg.dot11MeshConfirmTimeout, DEC);
 575 IEEE80211_IF_FILE(dot11MeshHoldingTimeout,
 576                   u.mesh.mshcfg.dot11MeshHoldingTimeout, DEC);
 577 IEEE80211_IF_FILE(dot11MeshTTL, u.mesh.mshcfg.dot11MeshTTL, DEC);
 578 IEEE80211_IF_FILE(element_ttl, u.mesh.mshcfg.element_ttl, DEC);
 579 IEEE80211_IF_FILE(auto_open_plinks, u.mesh.mshcfg.auto_open_plinks, DEC);
 580 IEEE80211_IF_FILE(dot11MeshMaxPeerLinks,
 581                   u.mesh.mshcfg.dot11MeshMaxPeerLinks, DEC);
 582 IEEE80211_IF_FILE(dot11MeshHWMPactivePathTimeout,
 583                   u.mesh.mshcfg.dot11MeshHWMPactivePathTimeout, DEC);
 584 IEEE80211_IF_FILE(dot11MeshHWMPpreqMinInterval,
 585                   u.mesh.mshcfg.dot11MeshHWMPpreqMinInterval, DEC);
 586 IEEE80211_IF_FILE(dot11MeshHWMPperrMinInterval,
 587                   u.mesh.mshcfg.dot11MeshHWMPperrMinInterval, DEC);
 588 IEEE80211_IF_FILE(dot11MeshHWMPnetDiameterTraversalTime,
 589                   u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime, DEC);
 590 IEEE80211_IF_FILE(dot11MeshHWMPmaxPREQretries,
 591                   u.mesh.mshcfg.dot11MeshHWMPmaxPREQretries, DEC);
 592 IEEE80211_IF_FILE(path_refresh_time,
 593                   u.mesh.mshcfg.path_refresh_time, DEC);
 594 IEEE80211_IF_FILE(min_discovery_timeout,
 595                   u.mesh.mshcfg.min_discovery_timeout, DEC);
 596 IEEE80211_IF_FILE(dot11MeshHWMPRootMode,
 597                   u.mesh.mshcfg.dot11MeshHWMPRootMode, DEC);
 598 IEEE80211_IF_FILE(dot11MeshGateAnnouncementProtocol,
 599                   u.mesh.mshcfg.dot11MeshGateAnnouncementProtocol, DEC);
 600 IEEE80211_IF_FILE(dot11MeshHWMPRannInterval,
 601                   u.mesh.mshcfg.dot11MeshHWMPRannInterval, DEC);
 602 IEEE80211_IF_FILE(dot11MeshForwarding, u.mesh.mshcfg.dot11MeshForwarding, DEC);
 603 IEEE80211_IF_FILE(rssi_threshold, u.mesh.mshcfg.rssi_threshold, DEC);
 604 IEEE80211_IF_FILE(ht_opmode, u.mesh.mshcfg.ht_opmode, DEC);
 605 IEEE80211_IF_FILE(dot11MeshHWMPactivePathToRootTimeout,
 606                   u.mesh.mshcfg.dot11MeshHWMPactivePathToRootTimeout, DEC);
 607 IEEE80211_IF_FILE(dot11MeshHWMProotInterval,
 608                   u.mesh.mshcfg.dot11MeshHWMProotInterval, DEC);
 609 IEEE80211_IF_FILE(dot11MeshHWMPconfirmationInterval,
 610                   u.mesh.mshcfg.dot11MeshHWMPconfirmationInterval, DEC);
 611 IEEE80211_IF_FILE(power_mode, u.mesh.mshcfg.power_mode, DEC);
 612 IEEE80211_IF_FILE(dot11MeshAwakeWindowDuration,
 613                   u.mesh.mshcfg.dot11MeshAwakeWindowDuration, DEC);
 614 #endif
 615
 616 #define DEBUGFS_ADD_MODE(name, mode) \
 617         debugfs_create_file(#name, mode, sdata->vif.debugfs_dir, \
 618                             sdata, &name##_ops);
 619
 620 #define DEBUGFS_ADD(name) DEBUGFS_ADD_MODE(name, 0400)
 621
 622 static void add_common_files(struct ieee80211_sub_if_data *sdata)
 623 {
 624         DEBUGFS_ADD(rc_rateidx_mask_2ghz);
 625         DEBUGFS_ADD(rc_rateidx_mask_5ghz);
 626         DEBUGFS_ADD(rc_rateidx_mcs_mask_2ghz);
 627         DEBUGFS_ADD(rc_rateidx_mcs_mask_5ghz);
 628         DEBUGFS_ADD(rc_rateidx_vht_mcs_mask_2ghz);
 629         DEBUGFS_ADD(rc_rateidx_vht_mcs_mask_5ghz);
 630         DEBUGFS_ADD(hw_queues);
 631 }
 632
 633 static void add_sta_files(struct ieee80211_sub_if_data *sdata)
 634 {
 635         DEBUGFS_ADD(bssid);
 636         DEBUGFS_ADD(aid);
 637         DEBUGFS_ADD(last_beacon);
 638         DEBUGFS_ADD(ave_beacon);
 639         DEBUGFS_ADD(beacon_timeout);
 640         DEBUGFS_ADD_MODE(smps, 0600);
 641         DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
 642         DEBUGFS_ADD_MODE(beacon_loss, 0200);
 643         DEBUGFS_ADD_MODE(uapsd_queues, 0600);
 644         DEBUGFS_ADD_MODE(uapsd_max_sp_len, 0600);
 645         DEBUGFS_ADD_MODE(tdls_wider_bw, 0600);
 646 }
 647
 648 static void add_ap_files(struct ieee80211_sub_if_data *sdata)
 649 {
 650         DEBUGFS_ADD(num_mcast_sta);
 651         DEBUGFS_ADD_MODE(smps, 0600);
 652         DEBUGFS_ADD(num_sta_ps);
 653         DEBUGFS_ADD(dtim_count);
 654         DEBUGFS_ADD(num_buffered_multicast);
 655         DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
 656 }
 657
 658 static void add_ibss_files(struct ieee80211_sub_if_data *sdata)
 659 {
 660         DEBUGFS_ADD_MODE(tsf, 0600);
 661 }
 662
 663 static void add_wds_files(struct ieee80211_sub_if_data *sdata)
 664 {
 665         DEBUGFS_ADD(peer);
 666 }
 667
 668 #ifdef CONFIG_MAC80211_MESH
 669
 670 static void add_mesh_files(struct ieee80211_sub_if_data *sdata)
 671 {
 672         DEBUGFS_ADD_MODE(tsf, 0600);
 673         DEBUGFS_ADD_MODE(estab_plinks, 0400);
 674 }
 675
 676 static void add_mesh_stats(struct ieee80211_sub_if_data *sdata)
 677 {
 678         struct dentry *dir = debugfs_create_dir("mesh_stats",
 679                                                 sdata->vif.debugfs_dir);
 680 #define MESHSTATS_ADD(name)\
 681         debugfs_create_file(#name, 0400, dir, sdata, &name##_ops);
 682
 683         MESHSTATS_ADD(fwded_mcast);
 684         MESHSTATS_ADD(fwded_unicast);
 685         MESHSTATS_ADD(fwded_frames);
 686         MESHSTATS_ADD(dropped_frames_ttl);
 687         MESHSTATS_ADD(dropped_frames_no_route);
 688         MESHSTATS_ADD(dropped_frames_congestion);
 689 #undef MESHSTATS_ADD
 690 }
 691
 692 static void add_mesh_config(struct ieee80211_sub_if_data *sdata)
 693 {
 694         struct dentry *dir = debugfs_create_dir("mesh_config",
 695                                                 sdata->vif.debugfs_dir);
 696
 697 #define MESHPARAMS_ADD(name) \
 698         debugfs_create_file(#name, 0600, dir, sdata, &name##_ops);
 699
 700         MESHPARAMS_ADD(dot11MeshMaxRetries);
 701         MESHPARAMS_ADD(dot11MeshRetryTimeout);
 702         MESHPARAMS_ADD(dot11MeshConfirmTimeout);
 703         MESHPARAMS_ADD(dot11MeshHoldingTimeout);
 704         MESHPARAMS_ADD(dot11MeshTTL);
 705         MESHPARAMS_ADD(element_ttl);
 706         MESHPARAMS_ADD(auto_open_plinks);
 707         MESHPARAMS_ADD(dot11MeshMaxPeerLinks);
 708         MESHPARAMS_ADD(dot11MeshHWMPactivePathTimeout);
 709         MESHPARAMS_ADD(dot11MeshHWMPpreqMinInterval);
 710         MESHPARAMS_ADD(dot11MeshHWMPperrMinInterval);
 711         MESHPARAMS_ADD(dot11MeshHWMPnetDiameterTraversalTime);
 712         MESHPARAMS_ADD(dot11MeshHWMPmaxPREQretries);
 713         MESHPARAMS_ADD(path_refresh_time);
 714         MESHPARAMS_ADD(min_discovery_timeout);
 715         MESHPARAMS_ADD(dot11MeshHWMPRootMode);
 716         MESHPARAMS_ADD(dot11MeshHWMPRannInterval);
 717         MESHPARAMS_ADD(dot11MeshForwarding);
 718         MESHPARAMS_ADD(dot11MeshGateAnnouncementProtocol);
 719         MESHPARAMS_ADD(rssi_threshold);
 720         MESHPARAMS_ADD(ht_opmode);
 721         MESHPARAMS_ADD(dot11MeshHWMPactivePathToRootTimeout);
 722         MESHPARAMS_ADD(dot11MeshHWMProotInterval);
 723         MESHPARAMS_ADD(dot11MeshHWMPconfirmationInterval);
 724         MESHPARAMS_ADD(power_mode);
 725         MESHPARAMS_ADD(dot11MeshAwakeWindowDuration);
 726 #undef MESHPARAMS_ADD
 727 }
 728 #endif
 729
 730 static void add_files(struct ieee80211_sub_if_data *sdata)
 731 {
 732         if (!sdata->vif.debugfs_dir)
 733                 return;
 734
 735         DEBUGFS_ADD(flags);
 736         DEBUGFS_ADD(state);
 737         DEBUGFS_ADD(txpower);
 738         DEBUGFS_ADD(user_power_level);
 739         DEBUGFS_ADD(ap_power_level);
 740
 741         if (sdata->vif.type != NL80211_IFTYPE_MONITOR)
 742                 add_common_files(sdata);
 743
 744         switch (sdata->vif.type) {
 745         case NL80211_IFTYPE_MESH_POINT:
 746 #ifdef CONFIG_MAC80211_MESH
 747                 add_mesh_files(sdata);
 748                 add_mesh_stats(sdata);
 749                 add_mesh_config(sdata);
 750 #endif
 751                 break;
 752         case NL80211_IFTYPE_STATION:
 753                 add_sta_files(sdata);
 754                 break;
 755         case NL80211_IFTYPE_ADHOC:
 756                 add_ibss_files(sdata);
 757                 break;
 758         case NL80211_IFTYPE_AP:
 759                 add_ap_files(sdata);
 760                 break;
 761         case NL80211_IFTYPE_WDS:
 762                 add_wds_files(sdata);
 763                 break;
 764         default:
 765                 break;
 766         }
 767 }
 768
 769 void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata)
 770 {
 771         char buf[10+IFNAMSIZ];
 772
 773         sprintf(buf, "netdev:%s", sdata->name);
 774         sdata->vif.debugfs_dir = debugfs_create_dir(buf,
 775                 sdata->local->hw.wiphy->debugfsdir);
 776         if (sdata->vif.debugfs_dir)
 777                 sdata->debugfs.subdir_stations = debugfs_create_dir("stations",
 778                         sdata->vif.debugfs_dir);
 779         add_files(sdata);
 780 }
 781
 782 void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata)
 783 {
 784         if (!sdata->vif.debugfs_dir)
 785                 return;
 786
 787         debugfs_remove_recursive(sdata->vif.debugfs_dir);
 788         sdata->vif.debugfs_dir = NULL;
 789         sdata->debugfs.subdir_stations = NULL;
 790 }
 791
 792 void ieee80211_debugfs_rename_netdev(struct ieee80211_sub_if_data *sdata)
 793 {
 794         struct dentry *dir;
 795         char buf[10 + IFNAMSIZ];
 796
 797         dir = sdata->vif.debugfs_dir;
 798
 799         if (!dir)
 800                 return;
 801
 802         sprintf(buf, "netdev:%s", sdata->name);
 803         if (!debugfs_rename(dir->d_parent, dir, dir->d_parent, buf))
 804                 sdata_err(sdata,
 805                           "debugfs: failed to rename debugfs dir to %s\n",
 806                           buf);
 807 }