net/mac80211/debugfs_netdev.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Copyright (c) 2006   Jiri Benc <jbenc@suse.cz>
   4  * Copyright 2007       Johannes Berg <johannes@sipsolutions.net>
   5  * Copyright (C) 2020 Intel Corporation
   6  */
   7
   8 #include <linux/kernel.h>
   9 #include <linux/device.h>
  10 #include <linux/if.h>
  11 #include <linux/if_ether.h>
  12 #include <linux/interrupt.h>
  13 #include <linux/netdevice.h>
  14 #include <linux/rtnetlink.h>
  15 #include <linux/slab.h>
  16 #include <linux/notifier.h>
  17 #include <net/mac80211.h>
  18 #include <net/cfg80211.h>
  19 #include "ieee80211_i.h"
  20 #include "rate.h"
  21 #include "debugfs.h"
  22 #include "debugfs_netdev.h"
  23 #include "driver-ops.h"
  24
  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         ret = -ENODEV;
  61         rtnl_lock();
  62         ret = (*write)(sdata, buf, count);
  63         rtnl_unlock();
  64
  65         return ret;
  66 }
  67
  68 #define IEEE80211_IF_FMT(name, field, format_string)                    \
  69 static ssize_t ieee80211_if_fmt_##name(                                 \
  70         const struct ieee80211_sub_if_data *sdata, char *buf,           \
  71         int buflen)                                                     \
  72 {                                                                       \
  73         return scnprintf(buf, buflen, format_string, sdata->field);     \
  74 }
  75 #define IEEE80211_IF_FMT_DEC(name, field)                               \
  76                 IEEE80211_IF_FMT(name, field, "%d\n")
  77 #define IEEE80211_IF_FMT_HEX(name, field)                               \
  78                 IEEE80211_IF_FMT(name, field, "%#x\n")
  79 #define IEEE80211_IF_FMT_LHEX(name, field)                              \
  80                 IEEE80211_IF_FMT(name, field, "%#lx\n")
  81 #define IEEE80211_IF_FMT_SIZE(name, field)                              \
  82                 IEEE80211_IF_FMT(name, field, "%zd\n")
  83
  84 #define IEEE80211_IF_FMT_HEXARRAY(name, field)                          \
  85 static ssize_t ieee80211_if_fmt_##name(                                 \
  86         const struct ieee80211_sub_if_data *sdata,                      \
  87         char *buf, int buflen)                                          \
  88 {                                                                       \
  89         char *p = buf;                                                  \
  90         int i;                                                          \
  91         for (i = 0; i < sizeof(sdata->field); i++) {                    \
  92                 p += scnprintf(p, buflen + buf - p, "%.2x ",            \
  93                                  sdata->field[i]);                      \
  94         }                                                               \
  95         p += scnprintf(p, buflen + buf - p, "\n");                      \
  96         return p - buf;                                                 \
  97 }
  98
  99 #define IEEE80211_IF_FMT_ATOMIC(name, field)                            \
 100 static ssize_t ieee80211_if_fmt_##name(                                 \
 101         const struct ieee80211_sub_if_data *sdata,                      \
 102         char *buf, int buflen)                                          \
 103 {                                                                       \
 104         return scnprintf(buf, buflen, "%d\n", atomic_read(&sdata->field));\
 105 }
 106
 107 #define IEEE80211_IF_FMT_MAC(name, field)                               \
 108 static ssize_t ieee80211_if_fmt_##name(                                 \
 109         const struct ieee80211_sub_if_data *sdata, char *buf,           \
 110         int buflen)                                                     \
 111 {                                                                       \
 112         return scnprintf(buf, buflen, "%pM\n", sdata->field);           \
 113 }
 114
 115 #define IEEE80211_IF_FMT_JIFFIES_TO_MS(name, field)                     \
 116 static ssize_t ieee80211_if_fmt_##name(                                 \
 117         const struct ieee80211_sub_if_data *sdata,                      \
 118         char *buf, int buflen)                                          \
 119 {                                                                       \
 120         return scnprintf(buf, buflen, "%d\n",                           \
 121                          jiffies_to_msecs(sdata->field));               \
 122 }
 123
 124 #define _IEEE80211_IF_FILE_OPS(name, _read, _write)                     \
 125 static const struct file_operations name##_ops = {                      \
 126         .read = (_read),                                                \
 127         .write = (_write),                                              \
 128         .open = simple_open,                                            \
 129         .llseek = generic_file_llseek,                                  \
 130 }
 131
 132 #define _IEEE80211_IF_FILE_R_FN(name)                                   \
 133 static ssize_t ieee80211_if_read_##name(struct file *file,              \
 134                                         char __user *userbuf,           \
 135                                         size_t count, loff_t *ppos)     \
 136 {                                                                       \
 137         return ieee80211_if_read(file->private_data,                    \
 138                                  userbuf, count, ppos,                  \
 139                                  ieee80211_if_fmt_##name);              \
 140 }
 141
 142 #define _IEEE80211_IF_FILE_W_FN(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
 151 #define IEEE80211_IF_FILE_R(name)                                       \
 152         _IEEE80211_IF_FILE_R_FN(name)                                   \
 153         _IEEE80211_IF_FILE_OPS(name, ieee80211_if_read_##name, NULL)
 154
 155 #define IEEE80211_IF_FILE_W(name)                                       \
 156         _IEEE80211_IF_FILE_W_FN(name)                                   \
 157         _IEEE80211_IF_FILE_OPS(name, NULL, ieee80211_if_write_##name)
 158
 159 #define IEEE80211_IF_FILE_RW(name)                                      \
 160         _IEEE80211_IF_FILE_R_FN(name)                                   \
 161         _IEEE80211_IF_FILE_W_FN(name)                                   \
 162         _IEEE80211_IF_FILE_OPS(name, ieee80211_if_read_##name,          \
 163                                ieee80211_if_write_##name)
 164
 165 #define IEEE80211_IF_FILE(name, field, format)                          \
 166         IEEE80211_IF_FMT_##format(name, field)                          \
 167         IEEE80211_IF_FILE_R(name)
 168
 169 /* common attributes */
 170 IEEE80211_IF_FILE(rc_rateidx_mask_2ghz, rc_rateidx_mask[NL80211_BAND_2GHZ],
 171                   HEX);
 172 IEEE80211_IF_FILE(rc_rateidx_mask_5ghz, rc_rateidx_mask[NL80211_BAND_5GHZ],
 173                   HEX);
 174 IEEE80211_IF_FILE(rc_rateidx_mcs_mask_2ghz,
 175                   rc_rateidx_mcs_mask[NL80211_BAND_2GHZ], HEXARRAY);
 176 IEEE80211_IF_FILE(rc_rateidx_mcs_mask_5ghz,
 177                   rc_rateidx_mcs_mask[NL80211_BAND_5GHZ], HEXARRAY);
 178
 179 static ssize_t ieee80211_if_fmt_rc_rateidx_vht_mcs_mask_2ghz(
 180                                 const struct ieee80211_sub_if_data *sdata,
 181                                 char *buf, int buflen)
 182 {
 183         int i, len = 0;
 184         const u16 *mask = sdata->rc_rateidx_vht_mcs_mask[NL80211_BAND_2GHZ];
 185
 186         for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
 187                 len += scnprintf(buf + len, buflen - len, "%04x ", mask[i]);
 188         len += scnprintf(buf + len, buflen - len, "\n");
 189
 190         return len;
 191 }
 192
 193 IEEE80211_IF_FILE_R(rc_rateidx_vht_mcs_mask_2ghz);
 194
 195 static ssize_t ieee80211_if_fmt_rc_rateidx_vht_mcs_mask_5ghz(
 196                                 const struct ieee80211_sub_if_data *sdata,
 197                                 char *buf, int buflen)
 198 {
 199         int i, len = 0;
 200         const u16 *mask = sdata->rc_rateidx_vht_mcs_mask[NL80211_BAND_5GHZ];
 201
 202         for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
 203                 len += scnprintf(buf + len, buflen - len, "%04x ", mask[i]);
 204         len += scnprintf(buf + len, buflen - len, "\n");
 205
 206         return len;
 207 }
 208
 209 IEEE80211_IF_FILE_R(rc_rateidx_vht_mcs_mask_5ghz);
 210
 211 IEEE80211_IF_FILE(flags, flags, HEX);
 212 IEEE80211_IF_FILE(state, state, LHEX);
 213 IEEE80211_IF_FILE(txpower, vif.bss_conf.txpower, DEC);
 214 IEEE80211_IF_FILE(ap_power_level, ap_power_level, DEC);
 215 IEEE80211_IF_FILE(user_power_level, user_power_level, DEC);
 216
 217 static ssize_t
 218 ieee80211_if_fmt_hw_queues(const struct ieee80211_sub_if_data *sdata,
 219                            char *buf, int buflen)
 220 {
 221         int len;
 222
 223         len = scnprintf(buf, buflen, "AC queues: VO:%d VI:%d BE:%d BK:%d\n",
 224                         sdata->vif.hw_queue[IEEE80211_AC_VO],
 225                         sdata->vif.hw_queue[IEEE80211_AC_VI],
 226                         sdata->vif.hw_queue[IEEE80211_AC_BE],
 227                         sdata->vif.hw_queue[IEEE80211_AC_BK]);
 228
 229         if (sdata->vif.type == NL80211_IFTYPE_AP)
 230                 len += scnprintf(buf + len, buflen - len, "cab queue: %d\n",
 231                                  sdata->vif.cab_queue);
 232
 233         return len;
 234 }
 235 IEEE80211_IF_FILE_R(hw_queues);
 236
 237 /* STA attributes */
 238 IEEE80211_IF_FILE(bssid, u.mgd.bssid, MAC);
 239 IEEE80211_IF_FILE(aid, vif.bss_conf.aid, DEC);
 240 IEEE80211_IF_FILE(beacon_timeout, u.mgd.beacon_timeout, JIFFIES_TO_MS);
 241
 242 static int ieee80211_set_smps(struct ieee80211_sub_if_data *sdata,
 243                               enum ieee80211_smps_mode smps_mode)
 244 {
 245         struct ieee80211_local *local = sdata->local;
 246         int err;
 247
 248         if (!(local->hw.wiphy->features & NL80211_FEATURE_STATIC_SMPS) &&
 249             smps_mode == IEEE80211_SMPS_STATIC)
 250                 return -EINVAL;
 251
 252         /* auto should be dynamic if in PS mode */
 253         if (!(local->hw.wiphy->features & NL80211_FEATURE_DYNAMIC_SMPS) &&
 254             (smps_mode == IEEE80211_SMPS_DYNAMIC ||
 255              smps_mode == IEEE80211_SMPS_AUTOMATIC))
 256                 return -EINVAL;
 257
 258         if (sdata->vif.type != NL80211_IFTYPE_STATION)
 259                 return -EOPNOTSUPP;
 260
 261         sdata_lock(sdata);
 262         err = __ieee80211_request_smps_mgd(sdata, smps_mode);
 263         sdata_unlock(sdata);
 264
 265         return err;
 266 }
 267
 268 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
 269         [IEEE80211_SMPS_AUTOMATIC] = "auto",
 270         [IEEE80211_SMPS_OFF] = "off",
 271         [IEEE80211_SMPS_STATIC] = "static",
 272         [IEEE80211_SMPS_DYNAMIC] = "dynamic",
 273 };
 274
 275 static ssize_t ieee80211_if_fmt_smps(const struct ieee80211_sub_if_data *sdata,
 276                                      char *buf, int buflen)
 277 {
 278         if (sdata->vif.type == NL80211_IFTYPE_STATION)
 279                 return snprintf(buf, buflen, "request: %s\nused: %s\n",
 280                                 smps_modes[sdata->u.mgd.req_smps],
 281                                 smps_modes[sdata->smps_mode]);
 282         return -EINVAL;
 283 }
 284
 285 static ssize_t ieee80211_if_parse_smps(struct ieee80211_sub_if_data *sdata,
 286                                        const char *buf, int buflen)
 287 {
 288         enum ieee80211_smps_mode mode;
 289
 290         for (mode = 0; mode < IEEE80211_SMPS_NUM_MODES; mode++) {
 291                 if (strncmp(buf, smps_modes[mode], buflen) == 0) {
 292                         int err = ieee80211_set_smps(sdata, mode);
 293                         if (!err)
 294                                 return buflen;
 295                         return err;
 296                 }
 297         }
 298
 299         return -EINVAL;
 300 }
 301 IEEE80211_IF_FILE_RW(smps);
 302
 303 static ssize_t ieee80211_if_parse_tkip_mic_test(
 304         struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
 305 {
 306         struct ieee80211_local *local = sdata->local;
 307         u8 addr[ETH_ALEN];
 308         struct sk_buff *skb;
 309         struct ieee80211_hdr *hdr;
 310         __le16 fc;
 311
 312         if (!mac_pton(buf, addr))
 313                 return -EINVAL;
 314
 315         if (!ieee80211_sdata_running(sdata))
 316                 return -ENOTCONN;
 317
 318         skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24 + 100);
 319         if (!skb)
 320                 return -ENOMEM;
 321         skb_reserve(skb, local->hw.extra_tx_headroom);
 322
 323         hdr = skb_put_zero(skb, 24);
 324         fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA);
 325
 326         switch (sdata->vif.type) {
 327         case NL80211_IFTYPE_AP:
 328                 fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS);
 329                 /* DA BSSID SA */
 330                 memcpy(hdr->addr1, addr, ETH_ALEN);
 331                 memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
 332                 memcpy(hdr->addr3, sdata->vif.addr, ETH_ALEN);
 333                 break;
 334         case NL80211_IFTYPE_STATION:
 335                 fc |= cpu_to_le16(IEEE80211_FCTL_TODS);
 336                 /* BSSID SA DA */
 337                 sdata_lock(sdata);
 338                 if (!sdata->u.mgd.associated) {
 339                         sdata_unlock(sdata);
 340                         dev_kfree_skb(skb);
 341                         return -ENOTCONN;
 342                 }
 343                 memcpy(hdr->addr1, sdata->u.mgd.associated->bssid, ETH_ALEN);
 344                 memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
 345                 memcpy(hdr->addr3, addr, ETH_ALEN);
 346                 sdata_unlock(sdata);
 347                 break;
 348         default:
 349                 dev_kfree_skb(skb);
 350                 return -EOPNOTSUPP;
 351         }
 352         hdr->frame_control = fc;
 353
 354         /*
 355          * Add some length to the test frame to make it look bit more valid.
 356          * The exact contents does not matter since the recipient is required
 357          * to drop this because of the Michael MIC failure.
 358          */
 359         skb_put_zero(skb, 50);
 360
 361         IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_TKIP_MIC_FAILURE;
 362
 363         ieee80211_tx_skb(sdata, skb);
 364
 365         return buflen;
 366 }
 367 IEEE80211_IF_FILE_W(tkip_mic_test);
 368
 369 static ssize_t ieee80211_if_parse_beacon_loss(
 370         struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
 371 {
 372         if (!ieee80211_sdata_running(sdata) || !sdata->vif.bss_conf.assoc)
 373                 return -ENOTCONN;
 374
 375         ieee80211_beacon_loss(&sdata->vif);
 376
 377         return buflen;
 378 }
 379 IEEE80211_IF_FILE_W(beacon_loss);
 380
 381 static ssize_t ieee80211_if_fmt_uapsd_queues(
 382         const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
 383 {
 384         const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 385
 386         return snprintf(buf, buflen, "0x%x\n", ifmgd->uapsd_queues);
 387 }
 388
 389 static ssize_t ieee80211_if_parse_uapsd_queues(
 390         struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
 391 {
 392         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 393         u8 val;
 394         int ret;
 395
 396         ret = kstrtou8(buf, 0, &val);
 397         if (ret)
 398                 return ret;
 399
 400         if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
 401                 return -ERANGE;
 402
 403         ifmgd->uapsd_queues = val;
 404
 405         return buflen;
 406 }
 407 IEEE80211_IF_FILE_RW(uapsd_queues);
 408
 409 static ssize_t ieee80211_if_fmt_uapsd_max_sp_len(
 410         const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
 411 {
 412         const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 413
 414         return snprintf(buf, buflen, "0x%x\n", ifmgd->uapsd_max_sp_len);
 415 }
 416
 417 static ssize_t ieee80211_if_parse_uapsd_max_sp_len(
 418         struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
 419 {
 420         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 421         unsigned long val;
 422         int ret;
 423
 424         ret = kstrtoul(buf, 0, &val);
 425         if (ret)
 426                 return -EINVAL;
 427
 428         if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
 429                 return -ERANGE;
 430
 431         ifmgd->uapsd_max_sp_len = val;
 432
 433         return buflen;
 434 }
 435 IEEE80211_IF_FILE_RW(uapsd_max_sp_len);
 436
 437 static ssize_t ieee80211_if_fmt_tdls_wider_bw(
 438         const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
 439 {
 440         const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 441         bool tdls_wider_bw;
 442
 443         tdls_wider_bw = ieee80211_hw_check(&sdata->local->hw, TDLS_WIDER_BW) &&
 444                         !ifmgd->tdls_wider_bw_prohibited;
 445
 446         return snprintf(buf, buflen, "%d\n", tdls_wider_bw);
 447 }
 448
 449 static ssize_t ieee80211_if_parse_tdls_wider_bw(
 450         struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
 451 {
 452         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 453         u8 val;
 454         int ret;
 455
 456         ret = kstrtou8(buf, 0, &val);
 457         if (ret)
 458                 return ret;
 459
 460         ifmgd->tdls_wider_bw_prohibited = !val;
 461         return buflen;
 462 }
 463 IEEE80211_IF_FILE_RW(tdls_wider_bw);
 464
 465 /* AP attributes */
 466 IEEE80211_IF_FILE(num_mcast_sta, u.ap.num_mcast_sta, ATOMIC);
 467 IEEE80211_IF_FILE(num_sta_ps, u.ap.ps.num_sta_ps, ATOMIC);
 468 IEEE80211_IF_FILE(dtim_count, u.ap.ps.dtim_count, DEC);
 469 IEEE80211_IF_FILE(num_mcast_sta_vlan, u.vlan.num_mcast_sta, ATOMIC);
 470
 471 static ssize_t ieee80211_if_fmt_num_buffered_multicast(
 472         const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
 473 {
 474         return scnprintf(buf, buflen, "%u\n",
 475                          skb_queue_len(&sdata->u.ap.ps.bc_buf));
 476 }
 477 IEEE80211_IF_FILE_R(num_buffered_multicast);
 478
 479 static ssize_t ieee80211_if_fmt_aqm(
 480         const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
 481 {
 482         struct ieee80211_local *local = sdata->local;
 483         struct txq_info *txqi;
 484         int len;
 485
 486         if (!sdata->vif.txq)
 487                 return 0;
 488
 489         txqi = to_txq_info(sdata->vif.txq);
 490
 491         spin_lock_bh(&local->fq.lock);
 492         rcu_read_lock();
 493
 494         len = scnprintf(buf,
 495                         buflen,
 496                         "ac backlog-bytes backlog-packets new-flows drops marks overlimit collisions tx-bytes tx-packets\n"
 497                         "%u %u %u %u %u %u %u %u %u %u\n",
 498                         txqi->txq.ac,
 499                         txqi->tin.backlog_bytes,
 500                         txqi->tin.backlog_packets,
 501                         txqi->tin.flows,
 502                         txqi->cstats.drop_count,
 503                         txqi->cstats.ecn_mark,
 504                         txqi->tin.overlimit,
 505                         txqi->tin.collisions,
 506                         txqi->tin.tx_bytes,
 507                         txqi->tin.tx_packets);
 508
 509         rcu_read_unlock();
 510         spin_unlock_bh(&local->fq.lock);
 511
 512         return len;
 513 }
 514 IEEE80211_IF_FILE_R(aqm);
 515
 516 IEEE80211_IF_FILE(multicast_to_unicast, u.ap.multicast_to_unicast, HEX);
 517
 518 /* IBSS attributes */
 519 static ssize_t ieee80211_if_fmt_tsf(
 520         const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
 521 {
 522         struct ieee80211_local *local = sdata->local;
 523         u64 tsf;
 524
 525         tsf = drv_get_tsf(local, (struct ieee80211_sub_if_data *)sdata);
 526
 527         return scnprintf(buf, buflen, "0x%016llx\n", (unsigned long long) tsf);
 528 }
 529
 530 static ssize_t ieee80211_if_parse_tsf(
 531         struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
 532 {
 533         struct ieee80211_local *local = sdata->local;
 534         unsigned long long tsf;
 535         int ret;
 536         int tsf_is_delta = 0;
 537
 538         if (strncmp(buf, "reset", 5) == 0) {
 539                 if (local->ops->reset_tsf) {
 540                         drv_reset_tsf(local, sdata);
 541                         wiphy_info(local->hw.wiphy, "debugfs reset TSF\n");
 542                 }
 543         } else {
 544                 if (buflen > 10 && buf[1] == '=') {
 545                         if (buf[0] == '+')
 546                                 tsf_is_delta = 1;
 547                         else if (buf[0] == '-')
 548                                 tsf_is_delta = -1;
 549                         else
 550                                 return -EINVAL;
 551                         buf += 2;
 552                 }
 553                 ret = kstrtoull(buf, 10, &tsf);
 554                 if (ret < 0)
 555                         return ret;
 556                 if (tsf_is_delta && local->ops->offset_tsf) {
 557                         drv_offset_tsf(local, sdata, tsf_is_delta * tsf);
 558                         wiphy_info(local->hw.wiphy,
 559                                    "debugfs offset TSF by %018lld\n",
 560                                    tsf_is_delta * tsf);
 561                 } else if (local->ops->set_tsf) {
 562                         if (tsf_is_delta)
 563                                 tsf = drv_get_tsf(local, sdata) +
 564                                       tsf_is_delta * tsf;
 565                         drv_set_tsf(local, sdata, tsf);
 566                         wiphy_info(local->hw.wiphy,
 567                                    "debugfs set TSF to %#018llx\n", tsf);
 568                 }
 569         }
 570
 571         ieee80211_recalc_dtim(local, sdata);
 572         return buflen;
 573 }
 574 IEEE80211_IF_FILE_RW(tsf);
 575
 576
 577 /* WDS attributes */
 578 IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC);
 579
 580 #ifdef CONFIG_MAC80211_MESH
 581 IEEE80211_IF_FILE(estab_plinks, u.mesh.estab_plinks, ATOMIC);
 582
 583 /* Mesh stats attributes */
 584 IEEE80211_IF_FILE(fwded_mcast, u.mesh.mshstats.fwded_mcast, DEC);
 585 IEEE80211_IF_FILE(fwded_unicast, u.mesh.mshstats.fwded_unicast, DEC);
 586 IEEE80211_IF_FILE(fwded_frames, u.mesh.mshstats.fwded_frames, DEC);
 587 IEEE80211_IF_FILE(dropped_frames_ttl, u.mesh.mshstats.dropped_frames_ttl, DEC);
 588 IEEE80211_IF_FILE(dropped_frames_congestion,
 589                   u.mesh.mshstats.dropped_frames_congestion, DEC);
 590 IEEE80211_IF_FILE(dropped_frames_no_route,
 591                   u.mesh.mshstats.dropped_frames_no_route, DEC);
 592
 593 /* Mesh parameters */
 594 IEEE80211_IF_FILE(dot11MeshMaxRetries,
 595                   u.mesh.mshcfg.dot11MeshMaxRetries, DEC);
 596 IEEE80211_IF_FILE(dot11MeshRetryTimeout,
 597                   u.mesh.mshcfg.dot11MeshRetryTimeout, DEC);
 598 IEEE80211_IF_FILE(dot11MeshConfirmTimeout,
 599                   u.mesh.mshcfg.dot11MeshConfirmTimeout, DEC);
 600 IEEE80211_IF_FILE(dot11MeshHoldingTimeout,
 601                   u.mesh.mshcfg.dot11MeshHoldingTimeout, DEC);
 602 IEEE80211_IF_FILE(dot11MeshTTL, u.mesh.mshcfg.dot11MeshTTL, DEC);
 603 IEEE80211_IF_FILE(element_ttl, u.mesh.mshcfg.element_ttl, DEC);
 604 IEEE80211_IF_FILE(auto_open_plinks, u.mesh.mshcfg.auto_open_plinks, DEC);
 605 IEEE80211_IF_FILE(dot11MeshMaxPeerLinks,
 606                   u.mesh.mshcfg.dot11MeshMaxPeerLinks, DEC);
 607 IEEE80211_IF_FILE(dot11MeshHWMPactivePathTimeout,
 608                   u.mesh.mshcfg.dot11MeshHWMPactivePathTimeout, DEC);
 609 IEEE80211_IF_FILE(dot11MeshHWMPpreqMinInterval,
 610                   u.mesh.mshcfg.dot11MeshHWMPpreqMinInterval, DEC);
 611 IEEE80211_IF_FILE(dot11MeshHWMPperrMinInterval,
 612                   u.mesh.mshcfg.dot11MeshHWMPperrMinInterval, DEC);
 613 IEEE80211_IF_FILE(dot11MeshHWMPnetDiameterTraversalTime,
 614                   u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime, DEC);
 615 IEEE80211_IF_FILE(dot11MeshHWMPmaxPREQretries,
 616                   u.mesh.mshcfg.dot11MeshHWMPmaxPREQretries, DEC);
 617 IEEE80211_IF_FILE(path_refresh_time,
 618                   u.mesh.mshcfg.path_refresh_time, DEC);
 619 IEEE80211_IF_FILE(min_discovery_timeout,
 620                   u.mesh.mshcfg.min_discovery_timeout, DEC);
 621 IEEE80211_IF_FILE(dot11MeshHWMPRootMode,
 622                   u.mesh.mshcfg.dot11MeshHWMPRootMode, DEC);
 623 IEEE80211_IF_FILE(dot11MeshGateAnnouncementProtocol,
 624                   u.mesh.mshcfg.dot11MeshGateAnnouncementProtocol, DEC);
 625 IEEE80211_IF_FILE(dot11MeshHWMPRannInterval,
 626                   u.mesh.mshcfg.dot11MeshHWMPRannInterval, DEC);
 627 IEEE80211_IF_FILE(dot11MeshForwarding, u.mesh.mshcfg.dot11MeshForwarding, DEC);
 628 IEEE80211_IF_FILE(rssi_threshold, u.mesh.mshcfg.rssi_threshold, DEC);
 629 IEEE80211_IF_FILE(ht_opmode, u.mesh.mshcfg.ht_opmode, DEC);
 630 IEEE80211_IF_FILE(dot11MeshHWMPactivePathToRootTimeout,
 631                   u.mesh.mshcfg.dot11MeshHWMPactivePathToRootTimeout, DEC);
 632 IEEE80211_IF_FILE(dot11MeshHWMProotInterval,
 633                   u.mesh.mshcfg.dot11MeshHWMProotInterval, DEC);
 634 IEEE80211_IF_FILE(dot11MeshHWMPconfirmationInterval,
 635                   u.mesh.mshcfg.dot11MeshHWMPconfirmationInterval, DEC);
 636 IEEE80211_IF_FILE(power_mode, u.mesh.mshcfg.power_mode, DEC);
 637 IEEE80211_IF_FILE(dot11MeshAwakeWindowDuration,
 638                   u.mesh.mshcfg.dot11MeshAwakeWindowDuration, DEC);
 639 IEEE80211_IF_FILE(dot11MeshConnectedToMeshGate,
 640                   u.mesh.mshcfg.dot11MeshConnectedToMeshGate, DEC);
 641 IEEE80211_IF_FILE(dot11MeshNolearn, u.mesh.mshcfg.dot11MeshNolearn, DEC);
 642 IEEE80211_IF_FILE(dot11MeshConnectedToAuthServer,
 643                   u.mesh.mshcfg.dot11MeshConnectedToAuthServer, DEC);
 644 #endif
 645
 646 #define DEBUGFS_ADD_MODE(name, mode) \
 647         debugfs_create_file(#name, mode, sdata->vif.debugfs_dir, \
 648                             sdata, &name##_ops);
 649
 650 #define DEBUGFS_ADD(name) DEBUGFS_ADD_MODE(name, 0400)
 651
 652 static void add_common_files(struct ieee80211_sub_if_data *sdata)
 653 {
 654         DEBUGFS_ADD(rc_rateidx_mask_2ghz);
 655         DEBUGFS_ADD(rc_rateidx_mask_5ghz);
 656         DEBUGFS_ADD(rc_rateidx_mcs_mask_2ghz);
 657         DEBUGFS_ADD(rc_rateidx_mcs_mask_5ghz);
 658         DEBUGFS_ADD(rc_rateidx_vht_mcs_mask_2ghz);
 659         DEBUGFS_ADD(rc_rateidx_vht_mcs_mask_5ghz);
 660         DEBUGFS_ADD(hw_queues);
 661
 662         if (sdata->local->ops->wake_tx_queue &&
 663             sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE &&
 664             sdata->vif.type != NL80211_IFTYPE_NAN)
 665                 DEBUGFS_ADD(aqm);
 666 }
 667
 668 static void add_sta_files(struct ieee80211_sub_if_data *sdata)
 669 {
 670         DEBUGFS_ADD(bssid);
 671         DEBUGFS_ADD(aid);
 672         DEBUGFS_ADD(beacon_timeout);
 673         DEBUGFS_ADD_MODE(smps, 0600);
 674         DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
 675         DEBUGFS_ADD_MODE(beacon_loss, 0200);
 676         DEBUGFS_ADD_MODE(uapsd_queues, 0600);
 677         DEBUGFS_ADD_MODE(uapsd_max_sp_len, 0600);
 678         DEBUGFS_ADD_MODE(tdls_wider_bw, 0600);
 679 }
 680
 681 static void add_ap_files(struct ieee80211_sub_if_data *sdata)
 682 {
 683         DEBUGFS_ADD(num_mcast_sta);
 684         DEBUGFS_ADD_MODE(smps, 0600);
 685         DEBUGFS_ADD(num_sta_ps);
 686         DEBUGFS_ADD(dtim_count);
 687         DEBUGFS_ADD(num_buffered_multicast);
 688         DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
 689         DEBUGFS_ADD_MODE(multicast_to_unicast, 0600);
 690 }
 691
 692 static void add_vlan_files(struct ieee80211_sub_if_data *sdata)
 693 {
 694         /* add num_mcast_sta_vlan using name num_mcast_sta */
 695         debugfs_create_file("num_mcast_sta", 0400, sdata->vif.debugfs_dir,
 696                             sdata, &num_mcast_sta_vlan_ops);
 697 }
 698
 699 static void add_ibss_files(struct ieee80211_sub_if_data *sdata)
 700 {
 701         DEBUGFS_ADD_MODE(tsf, 0600);
 702 }
 703
 704 static void add_wds_files(struct ieee80211_sub_if_data *sdata)
 705 {
 706         DEBUGFS_ADD(peer);
 707 }
 708
 709 #ifdef CONFIG_MAC80211_MESH
 710
 711 static void add_mesh_files(struct ieee80211_sub_if_data *sdata)
 712 {
 713         DEBUGFS_ADD_MODE(tsf, 0600);
 714         DEBUGFS_ADD_MODE(estab_plinks, 0400);
 715 }
 716
 717 static void add_mesh_stats(struct ieee80211_sub_if_data *sdata)
 718 {
 719         struct dentry *dir = debugfs_create_dir("mesh_stats",
 720                                                 sdata->vif.debugfs_dir);
 721 #define MESHSTATS_ADD(name)\
 722         debugfs_create_file(#name, 0400, dir, sdata, &name##_ops);
 723
 724         MESHSTATS_ADD(fwded_mcast);
 725         MESHSTATS_ADD(fwded_unicast);
 726         MESHSTATS_ADD(fwded_frames);
 727         MESHSTATS_ADD(dropped_frames_ttl);
 728         MESHSTATS_ADD(dropped_frames_no_route);
 729         MESHSTATS_ADD(dropped_frames_congestion);
 730 #undef MESHSTATS_ADD
 731 }
 732
 733 static void add_mesh_config(struct ieee80211_sub_if_data *sdata)
 734 {
 735         struct dentry *dir = debugfs_create_dir("mesh_config",
 736                                                 sdata->vif.debugfs_dir);
 737
 738 #define MESHPARAMS_ADD(name) \
 739         debugfs_create_file(#name, 0600, dir, sdata, &name##_ops);
 740
 741         MESHPARAMS_ADD(dot11MeshMaxRetries);
 742         MESHPARAMS_ADD(dot11MeshRetryTimeout);
 743         MESHPARAMS_ADD(dot11MeshConfirmTimeout);
 744         MESHPARAMS_ADD(dot11MeshHoldingTimeout);
 745         MESHPARAMS_ADD(dot11MeshTTL);
 746         MESHPARAMS_ADD(element_ttl);
 747         MESHPARAMS_ADD(auto_open_plinks);
 748         MESHPARAMS_ADD(dot11MeshMaxPeerLinks);
 749         MESHPARAMS_ADD(dot11MeshHWMPactivePathTimeout);
 750         MESHPARAMS_ADD(dot11MeshHWMPpreqMinInterval);
 751         MESHPARAMS_ADD(dot11MeshHWMPperrMinInterval);
 752         MESHPARAMS_ADD(dot11MeshHWMPnetDiameterTraversalTime);
 753         MESHPARAMS_ADD(dot11MeshHWMPmaxPREQretries);
 754         MESHPARAMS_ADD(path_refresh_time);
 755         MESHPARAMS_ADD(min_discovery_timeout);
 756         MESHPARAMS_ADD(dot11MeshHWMPRootMode);
 757         MESHPARAMS_ADD(dot11MeshHWMPRannInterval);
 758         MESHPARAMS_ADD(dot11MeshForwarding);
 759         MESHPARAMS_ADD(dot11MeshGateAnnouncementProtocol);
 760         MESHPARAMS_ADD(rssi_threshold);
 761         MESHPARAMS_ADD(ht_opmode);
 762         MESHPARAMS_ADD(dot11MeshHWMPactivePathToRootTimeout);
 763         MESHPARAMS_ADD(dot11MeshHWMProotInterval);
 764         MESHPARAMS_ADD(dot11MeshHWMPconfirmationInterval);
 765         MESHPARAMS_ADD(power_mode);
 766         MESHPARAMS_ADD(dot11MeshAwakeWindowDuration);
 767         MESHPARAMS_ADD(dot11MeshConnectedToMeshGate);
 768         MESHPARAMS_ADD(dot11MeshNolearn);
 769         MESHPARAMS_ADD(dot11MeshConnectedToAuthServer);
 770 #undef MESHPARAMS_ADD
 771 }
 772 #endif
 773
 774 static void add_files(struct ieee80211_sub_if_data *sdata)
 775 {
 776         if (!sdata->vif.debugfs_dir)
 777                 return;
 778
 779         DEBUGFS_ADD(flags);
 780         DEBUGFS_ADD(state);
 781         DEBUGFS_ADD(txpower);
 782         DEBUGFS_ADD(user_power_level);
 783         DEBUGFS_ADD(ap_power_level);
 784
 785         if (sdata->vif.type != NL80211_IFTYPE_MONITOR)
 786                 add_common_files(sdata);
 787
 788         switch (sdata->vif.type) {
 789         case NL80211_IFTYPE_MESH_POINT:
 790 #ifdef CONFIG_MAC80211_MESH
 791                 add_mesh_files(sdata);
 792                 add_mesh_stats(sdata);
 793                 add_mesh_config(sdata);
 794 #endif
 795                 break;
 796         case NL80211_IFTYPE_STATION:
 797                 add_sta_files(sdata);
 798                 break;
 799         case NL80211_IFTYPE_ADHOC:
 800                 add_ibss_files(sdata);
 801                 break;
 802         case NL80211_IFTYPE_AP:
 803                 add_ap_files(sdata);
 804                 break;
 805         case NL80211_IFTYPE_AP_VLAN:
 806                 add_vlan_files(sdata);
 807                 break;
 808         case NL80211_IFTYPE_WDS:
 809                 add_wds_files(sdata);
 810                 break;
 811         default:
 812                 break;
 813         }
 814 }
 815
 816 void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata)
 817 {
 818         char buf[10+IFNAMSIZ];
 819
 820         sprintf(buf, "netdev:%s", sdata->name);
 821         sdata->vif.debugfs_dir = debugfs_create_dir(buf,
 822                 sdata->local->hw.wiphy->debugfsdir);
 823         sdata->debugfs.subdir_stations = debugfs_create_dir("stations",
 824                                                         sdata->vif.debugfs_dir);
 825         add_files(sdata);
 826 }
 827
 828 void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata)
 829 {
 830         if (!sdata->vif.debugfs_dir)
 831                 return;
 832
 833         debugfs_remove_recursive(sdata->vif.debugfs_dir);
 834         sdata->vif.debugfs_dir = NULL;
 835         sdata->debugfs.subdir_stations = NULL;
 836 }
 837
 838 void ieee80211_debugfs_rename_netdev(struct ieee80211_sub_if_data *sdata)
 839 {
 840         struct dentry *dir;
 841         char buf[10 + IFNAMSIZ];
 842
 843         dir = sdata->vif.debugfs_dir;
 844
 845         if (IS_ERR_OR_NULL(dir))
 846                 return;
 847
 848         sprintf(buf, "netdev:%s", sdata->name);
 849         debugfs_rename(dir->d_parent, dir, dir->d_parent, buf);
 850 }