linux/net/mac80211/debugfs_netdev.c
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   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
  27static 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[200];
  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
  46static 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)                    \
  71static 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)                          \
  87static 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)                            \
 102static 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)                               \
 110static 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_JIFFIES_TO_MS(name, field)                     \
 118static 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",                           \
 123                         jiffies_to_msecs(sdata->field));               \
 124}
 125
 126#define _IEEE80211_IF_FILE_OPS(name, _read, _write)                     \
 127static const struct file_operations name##_ops = {                      \
 128        .read = (_read),                                                \
 129        .write = (_write),                                              \
 130        .open = simple_open,                                            \
 131        .llseek = generic_file_llseek,                                  \
 132}
 133
 134#define _IEEE80211_IF_FILE_R_FN(name)                                   \
 135static ssize_t ieee80211_if_read_##name(struct file *file,              \
 136                                        char __user *userbuf,           \
 137                                        size_t count, loff_t *ppos)     \
 138{                                                                       \
 139        return ieee80211_if_read(file->private_data,                    \
 140                                 userbuf, count, ppos,                  \
 141                                 ieee80211_if_fmt_##name);              \
 142}
 143
 144#define _IEEE80211_IF_FILE_W_FN(name)                                   \
 145static ssize_t ieee80211_if_write_##name(struct file *file,             \
 146                                         const char __user *userbuf,    \
 147                                         size_t count, loff_t *ppos)    \
 148{                                                                       \
 149        return ieee80211_if_write(file->private_data, userbuf, count,   \
 150                                  ppos, ieee80211_if_parse_##name);     \
 151}
 152
 153#define IEEE80211_IF_FILE_R(name)                                       \
 154        _IEEE80211_IF_FILE_R_FN(name)                                   \
 155        _IEEE80211_IF_FILE_OPS(name, ieee80211_if_read_##name, NULL)
 156
 157#define IEEE80211_IF_FILE_W(name)                                       \
 158        _IEEE80211_IF_FILE_W_FN(name)                                   \
 159        _IEEE80211_IF_FILE_OPS(name, NULL, ieee80211_if_write_##name)
 160
 161#define IEEE80211_IF_FILE_RW(name)                                      \
 162        _IEEE80211_IF_FILE_R_FN(name)                                   \
 163        _IEEE80211_IF_FILE_W_FN(name)                                   \
 164        _IEEE80211_IF_FILE_OPS(name, ieee80211_if_read_##name,          \
 165                               ieee80211_if_write_##name)
 166
 167#define IEEE80211_IF_FILE(name, field, format)                          \
 168        IEEE80211_IF_FMT_##format(name, field)                          \
 169        IEEE80211_IF_FILE_R(name)
 170
 171/* common attributes */
 172IEEE80211_IF_FILE(rc_rateidx_mask_2ghz, rc_rateidx_mask[NL80211_BAND_2GHZ],
 173                  HEX);
 174IEEE80211_IF_FILE(rc_rateidx_mask_5ghz, rc_rateidx_mask[NL80211_BAND_5GHZ],
 175                  HEX);
 176IEEE80211_IF_FILE(rc_rateidx_mcs_mask_2ghz,
 177                  rc_rateidx_mcs_mask[NL80211_BAND_2GHZ], HEXARRAY);
 178IEEE80211_IF_FILE(rc_rateidx_mcs_mask_5ghz,
 179                  rc_rateidx_mcs_mask[NL80211_BAND_5GHZ], HEXARRAY);
 180
 181static ssize_t ieee80211_if_fmt_rc_rateidx_vht_mcs_mask_2ghz(
 182                                const struct ieee80211_sub_if_data *sdata,
 183                                char *buf, int buflen)
 184{
 185        int i, len = 0;
 186        const u16 *mask = sdata->rc_rateidx_vht_mcs_mask[NL80211_BAND_2GHZ];
 187
 188        for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
 189                len += scnprintf(buf + len, buflen - len, "%04x ", mask[i]);
 190        len += scnprintf(buf + len, buflen - len, "\n");
 191
 192        return len;
 193}
 194
 195IEEE80211_IF_FILE_R(rc_rateidx_vht_mcs_mask_2ghz);
 196
 197static ssize_t ieee80211_if_fmt_rc_rateidx_vht_mcs_mask_5ghz(
 198                                const struct ieee80211_sub_if_data *sdata,
 199                                char *buf, int buflen)
 200{
 201        int i, len = 0;
 202        const u16 *mask = sdata->rc_rateidx_vht_mcs_mask[NL80211_BAND_5GHZ];
 203
 204        for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
 205                len += scnprintf(buf + len, buflen - len, "%04x ", mask[i]);
 206        len += scnprintf(buf + len, buflen - len, "\n");
 207
 208        return len;
 209}
 210
 211IEEE80211_IF_FILE_R(rc_rateidx_vht_mcs_mask_5ghz);
 212
 213IEEE80211_IF_FILE(flags, flags, HEX);
 214IEEE80211_IF_FILE(state, state, LHEX);
 215IEEE80211_IF_FILE(txpower, vif.bss_conf.txpower, DEC);
 216IEEE80211_IF_FILE(ap_power_level, ap_power_level, DEC);
 217IEEE80211_IF_FILE(user_power_level, user_power_level, DEC);
 218
 219static ssize_t
 220ieee80211_if_fmt_hw_queues(const struct ieee80211_sub_if_data *sdata,
 221                           char *buf, int buflen)
 222{
 223        int len;
 224
 225        len = scnprintf(buf, buflen, "AC queues: VO:%d VI:%d BE:%d BK:%d\n",
 226                        sdata->vif.hw_queue[IEEE80211_AC_VO],
 227                        sdata->vif.hw_queue[IEEE80211_AC_VI],
 228                        sdata->vif.hw_queue[IEEE80211_AC_BE],
 229                        sdata->vif.hw_queue[IEEE80211_AC_BK]);
 230
 231        if (sdata->vif.type == NL80211_IFTYPE_AP)
 232                len += scnprintf(buf + len, buflen - len, "cab queue: %d\n",
 233                                 sdata->vif.cab_queue);
 234
 235        return len;
 236}
 237IEEE80211_IF_FILE_R(hw_queues);
 238
 239/* STA attributes */
 240IEEE80211_IF_FILE(bssid, u.mgd.bssid, MAC);
 241IEEE80211_IF_FILE(aid, u.mgd.aid, DEC);
 242IEEE80211_IF_FILE(beacon_timeout, u.mgd.beacon_timeout, JIFFIES_TO_MS);
 243
 244static int ieee80211_set_smps(struct ieee80211_sub_if_data *sdata,
 245                              enum ieee80211_smps_mode smps_mode)
 246{
 247        struct ieee80211_local *local = sdata->local;
 248        int err;
 249
 250        if (!(local->hw.wiphy->features & NL80211_FEATURE_STATIC_SMPS) &&
 251            smps_mode == IEEE80211_SMPS_STATIC)
 252                return -EINVAL;
 253
 254        /* auto should be dynamic if in PS mode */
 255        if (!(local->hw.wiphy->features & NL80211_FEATURE_DYNAMIC_SMPS) &&
 256            (smps_mode == IEEE80211_SMPS_DYNAMIC ||
 257             smps_mode == IEEE80211_SMPS_AUTOMATIC))
 258                return -EINVAL;
 259
 260        if (sdata->vif.type != NL80211_IFTYPE_STATION &&
 261            sdata->vif.type != NL80211_IFTYPE_AP)
 262                return -EOPNOTSUPP;
 263
 264        sdata_lock(sdata);
 265        if (sdata->vif.type == NL80211_IFTYPE_STATION)
 266                err = __ieee80211_request_smps_mgd(sdata, smps_mode);
 267        else
 268                err = __ieee80211_request_smps_ap(sdata, smps_mode);
 269        sdata_unlock(sdata);
 270
 271        return err;
 272}
 273
 274static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
 275        [IEEE80211_SMPS_AUTOMATIC] = "auto",
 276        [IEEE80211_SMPS_OFF] = "off",
 277        [IEEE80211_SMPS_STATIC] = "static",
 278        [IEEE80211_SMPS_DYNAMIC] = "dynamic",
 279};
 280
 281static ssize_t ieee80211_if_fmt_smps(const struct ieee80211_sub_if_data *sdata,
 282                                     char *buf, int buflen)
 283{
 284        if (sdata->vif.type == NL80211_IFTYPE_STATION)
 285                return snprintf(buf, buflen, "request: %s\nused: %s\n",
 286                                smps_modes[sdata->u.mgd.req_smps],
 287                                smps_modes[sdata->smps_mode]);
 288        if (sdata->vif.type == NL80211_IFTYPE_AP)
 289                return snprintf(buf, buflen, "request: %s\nused: %s\n",
 290                                smps_modes[sdata->u.ap.req_smps],
 291                                smps_modes[sdata->smps_mode]);
 292        return -EINVAL;
 293}
 294
 295static ssize_t ieee80211_if_parse_smps(struct ieee80211_sub_if_data *sdata,
 296                                       const char *buf, int buflen)
 297{
 298        enum ieee80211_smps_mode mode;
 299
 300        for (mode = 0; mode < IEEE80211_SMPS_NUM_MODES; mode++) {
 301                if (strncmp(buf, smps_modes[mode], buflen) == 0) {
 302                        int err = ieee80211_set_smps(sdata, mode);
 303                        if (!err)
 304                                return buflen;
 305                        return err;
 306                }
 307        }
 308
 309        return -EINVAL;
 310}
 311IEEE80211_IF_FILE_RW(smps);
 312
 313static ssize_t ieee80211_if_parse_tkip_mic_test(
 314        struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
 315{
 316        struct ieee80211_local *local = sdata->local;
 317        u8 addr[ETH_ALEN];
 318        struct sk_buff *skb;
 319        struct ieee80211_hdr *hdr;
 320        __le16 fc;
 321
 322        if (!mac_pton(buf, addr))
 323                return -EINVAL;
 324
 325        if (!ieee80211_sdata_running(sdata))
 326                return -ENOTCONN;
 327
 328        skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24 + 100);
 329        if (!skb)
 330                return -ENOMEM;
 331        skb_reserve(skb, local->hw.extra_tx_headroom);
 332
 333        hdr = skb_put_zero(skb, 24);
 334        fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA);
 335
 336        switch (sdata->vif.type) {
 337        case NL80211_IFTYPE_AP:
 338                fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS);
 339                /* DA BSSID SA */
 340                memcpy(hdr->addr1, addr, ETH_ALEN);
 341                memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
 342                memcpy(hdr->addr3, sdata->vif.addr, ETH_ALEN);
 343                break;
 344        case NL80211_IFTYPE_STATION:
 345                fc |= cpu_to_le16(IEEE80211_FCTL_TODS);
 346                /* BSSID SA DA */
 347                sdata_lock(sdata);
 348                if (!sdata->u.mgd.associated) {
 349                        sdata_unlock(sdata);
 350                        dev_kfree_skb(skb);
 351                        return -ENOTCONN;
 352                }
 353                memcpy(hdr->addr1, sdata->u.mgd.associated->bssid, ETH_ALEN);
 354                memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
 355                memcpy(hdr->addr3, addr, ETH_ALEN);
 356                sdata_unlock(sdata);
 357                break;
 358        default:
 359                dev_kfree_skb(skb);
 360                return -EOPNOTSUPP;
 361        }
 362        hdr->frame_control = fc;
 363
 364        /*
 365         * Add some length to the test frame to make it look bit more valid.
 366         * The exact contents does not matter since the recipient is required
 367         * to drop this because of the Michael MIC failure.
 368         */
 369        skb_put_zero(skb, 50);
 370
 371        IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_TKIP_MIC_FAILURE;
 372
 373        ieee80211_tx_skb(sdata, skb);
 374
 375        return buflen;
 376}
 377IEEE80211_IF_FILE_W(tkip_mic_test);
 378
 379static ssize_t ieee80211_if_parse_beacon_loss(
 380        struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
 381{
 382        if (!ieee80211_sdata_running(sdata) || !sdata->vif.bss_conf.assoc)
 383                return -ENOTCONN;
 384
 385        ieee80211_beacon_loss(&sdata->vif);
 386
 387        return buflen;
 388}
 389IEEE80211_IF_FILE_W(beacon_loss);
 390
 391static ssize_t ieee80211_if_fmt_uapsd_queues(
 392        const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
 393{
 394        const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 395
 396        return snprintf(buf, buflen, "0x%x\n", ifmgd->uapsd_queues);
 397}
 398
 399static ssize_t ieee80211_if_parse_uapsd_queues(
 400        struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
 401{
 402        struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 403        u8 val;
 404        int ret;
 405
 406        ret = kstrtou8(buf, 0, &val);
 407        if (ret)
 408                return ret;
 409
 410        if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
 411                return -ERANGE;
 412
 413        ifmgd->uapsd_queues = val;
 414
 415        return buflen;
 416}
 417IEEE80211_IF_FILE_RW(uapsd_queues);
 418
 419static ssize_t ieee80211_if_fmt_uapsd_max_sp_len(
 420        const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
 421{
 422        const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 423
 424        return snprintf(buf, buflen, "0x%x\n", ifmgd->uapsd_max_sp_len);
 425}
 426
 427static ssize_t ieee80211_if_parse_uapsd_max_sp_len(
 428        struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
 429{
 430        struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 431        unsigned long val;
 432        int ret;
 433
 434        ret = kstrtoul(buf, 0, &val);
 435        if (ret)
 436                return -EINVAL;
 437
 438        if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
 439                return -ERANGE;
 440
 441        ifmgd->uapsd_max_sp_len = val;
 442
 443        return buflen;
 444}
 445IEEE80211_IF_FILE_RW(uapsd_max_sp_len);
 446
 447static ssize_t ieee80211_if_fmt_tdls_wider_bw(
 448        const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
 449{
 450        const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 451        bool tdls_wider_bw;
 452
 453        tdls_wider_bw = ieee80211_hw_check(&sdata->local->hw, TDLS_WIDER_BW) &&
 454                        !ifmgd->tdls_wider_bw_prohibited;
 455
 456        return snprintf(buf, buflen, "%d\n", tdls_wider_bw);
 457}
 458
 459static ssize_t ieee80211_if_parse_tdls_wider_bw(
 460        struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
 461{
 462        struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 463        u8 val;
 464        int ret;
 465
 466        ret = kstrtou8(buf, 0, &val);
 467        if (ret)
 468                return ret;
 469
 470        ifmgd->tdls_wider_bw_prohibited = !val;
 471        return buflen;
 472}
 473IEEE80211_IF_FILE_RW(tdls_wider_bw);
 474
 475/* AP attributes */
 476IEEE80211_IF_FILE(num_mcast_sta, u.ap.num_mcast_sta, ATOMIC);
 477IEEE80211_IF_FILE(num_sta_ps, u.ap.ps.num_sta_ps, ATOMIC);
 478IEEE80211_IF_FILE(dtim_count, u.ap.ps.dtim_count, DEC);
 479IEEE80211_IF_FILE(num_mcast_sta_vlan, u.vlan.num_mcast_sta, ATOMIC);
 480
 481static ssize_t ieee80211_if_fmt_num_buffered_multicast(
 482        const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
 483{
 484        return scnprintf(buf, buflen, "%u\n",
 485                         skb_queue_len(&sdata->u.ap.ps.bc_buf));
 486}
 487IEEE80211_IF_FILE_R(num_buffered_multicast);
 488
 489static ssize_t ieee80211_if_fmt_aqm(
 490        const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
 491{
 492        struct ieee80211_local *local = sdata->local;
 493        struct txq_info *txqi = to_txq_info(sdata->vif.txq);
 494        int len;
 495
 496        spin_lock_bh(&local->fq.lock);
 497        rcu_read_lock();
 498
 499        len = scnprintf(buf,
 500                        buflen,
 501                        "ac backlog-bytes backlog-packets new-flows drops marks overlimit collisions tx-bytes tx-packets\n"
 502                        "%u %u %u %u %u %u %u %u %u %u\n",
 503                        txqi->txq.ac,
 504                        txqi->tin.backlog_bytes,
 505                        txqi->tin.backlog_packets,
 506                        txqi->tin.flows,
 507                        txqi->cstats.drop_count,
 508                        txqi->cstats.ecn_mark,
 509                        txqi->tin.overlimit,
 510                        txqi->tin.collisions,
 511                        txqi->tin.tx_bytes,
 512                        txqi->tin.tx_packets);
 513
 514        rcu_read_unlock();
 515        spin_unlock_bh(&local->fq.lock);
 516
 517        return len;
 518}
 519IEEE80211_IF_FILE_R(aqm);
 520
 521IEEE80211_IF_FILE(multicast_to_unicast, u.ap.multicast_to_unicast, HEX);
 522
 523/* IBSS attributes */
 524static ssize_t ieee80211_if_fmt_tsf(
 525        const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
 526{
 527        struct ieee80211_local *local = sdata->local;
 528        u64 tsf;
 529
 530        tsf = drv_get_tsf(local, (struct ieee80211_sub_if_data *)sdata);
 531
 532        return scnprintf(buf, buflen, "0x%016llx\n", (unsigned long long) tsf);
 533}
 534
 535static ssize_t ieee80211_if_parse_tsf(
 536        struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
 537{
 538        struct ieee80211_local *local = sdata->local;
 539        unsigned long long tsf;
 540        int ret;
 541        int tsf_is_delta = 0;
 542
 543        if (strncmp(buf, "reset", 5) == 0) {
 544                if (local->ops->reset_tsf) {
 545                        drv_reset_tsf(local, sdata);
 546                        wiphy_info(local->hw.wiphy, "debugfs reset TSF\n");
 547                }
 548        } else {
 549                if (buflen > 10 && buf[1] == '=') {
 550                        if (buf[0] == '+')
 551                                tsf_is_delta = 1;
 552                        else if (buf[0] == '-')
 553                                tsf_is_delta = -1;
 554                        else
 555                                return -EINVAL;
 556                        buf += 2;
 557                }
 558                ret = kstrtoull(buf, 10, &tsf);
 559                if (ret < 0)
 560                        return ret;
 561                if (tsf_is_delta && local->ops->offset_tsf) {
 562                        drv_offset_tsf(local, sdata, tsf_is_delta * tsf);
 563                        wiphy_info(local->hw.wiphy,
 564                                   "debugfs offset TSF by %018lld\n",
 565                                   tsf_is_delta * tsf);
 566                } else if (local->ops->set_tsf) {
 567                        if (tsf_is_delta)
 568                                tsf = drv_get_tsf(local, sdata) +
 569                                      tsf_is_delta * tsf;
 570                        drv_set_tsf(local, sdata, tsf);
 571                        wiphy_info(local->hw.wiphy,
 572                                   "debugfs set TSF to %#018llx\n", tsf);
 573                }
 574        }
 575
 576        ieee80211_recalc_dtim(local, sdata);
 577        return buflen;
 578}
 579IEEE80211_IF_FILE_RW(tsf);
 580
 581
 582/* WDS attributes */
 583IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC);
 584
 585#ifdef CONFIG_MAC80211_MESH
 586IEEE80211_IF_FILE(estab_plinks, u.mesh.estab_plinks, ATOMIC);
 587
 588/* Mesh stats attributes */
 589IEEE80211_IF_FILE(fwded_mcast, u.mesh.mshstats.fwded_mcast, DEC);
 590IEEE80211_IF_FILE(fwded_unicast, u.mesh.mshstats.fwded_unicast, DEC);
 591IEEE80211_IF_FILE(fwded_frames, u.mesh.mshstats.fwded_frames, DEC);
 592IEEE80211_IF_FILE(dropped_frames_ttl, u.mesh.mshstats.dropped_frames_ttl, DEC);
 593IEEE80211_IF_FILE(dropped_frames_congestion,
 594                  u.mesh.mshstats.dropped_frames_congestion, DEC);
 595IEEE80211_IF_FILE(dropped_frames_no_route,
 596                  u.mesh.mshstats.dropped_frames_no_route, DEC);
 597
 598/* Mesh parameters */
 599IEEE80211_IF_FILE(dot11MeshMaxRetries,
 600                  u.mesh.mshcfg.dot11MeshMaxRetries, DEC);
 601IEEE80211_IF_FILE(dot11MeshRetryTimeout,
 602                  u.mesh.mshcfg.dot11MeshRetryTimeout, DEC);
 603IEEE80211_IF_FILE(dot11MeshConfirmTimeout,
 604                  u.mesh.mshcfg.dot11MeshConfirmTimeout, DEC);
 605IEEE80211_IF_FILE(dot11MeshHoldingTimeout,
 606                  u.mesh.mshcfg.dot11MeshHoldingTimeout, DEC);
 607IEEE80211_IF_FILE(dot11MeshTTL, u.mesh.mshcfg.dot11MeshTTL, DEC);
 608IEEE80211_IF_FILE(element_ttl, u.mesh.mshcfg.element_ttl, DEC);
 609IEEE80211_IF_FILE(auto_open_plinks, u.mesh.mshcfg.auto_open_plinks, DEC);
 610IEEE80211_IF_FILE(dot11MeshMaxPeerLinks,
 611                  u.mesh.mshcfg.dot11MeshMaxPeerLinks, DEC);
 612IEEE80211_IF_FILE(dot11MeshHWMPactivePathTimeout,
 613                  u.mesh.mshcfg.dot11MeshHWMPactivePathTimeout, DEC);
 614IEEE80211_IF_FILE(dot11MeshHWMPpreqMinInterval,
 615                  u.mesh.mshcfg.dot11MeshHWMPpreqMinInterval, DEC);
 616IEEE80211_IF_FILE(dot11MeshHWMPperrMinInterval,
 617                  u.mesh.mshcfg.dot11MeshHWMPperrMinInterval, DEC);
 618IEEE80211_IF_FILE(dot11MeshHWMPnetDiameterTraversalTime,
 619                  u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime, DEC);
 620IEEE80211_IF_FILE(dot11MeshHWMPmaxPREQretries,
 621                  u.mesh.mshcfg.dot11MeshHWMPmaxPREQretries, DEC);
 622IEEE80211_IF_FILE(path_refresh_time,
 623                  u.mesh.mshcfg.path_refresh_time, DEC);
 624IEEE80211_IF_FILE(min_discovery_timeout,
 625                  u.mesh.mshcfg.min_discovery_timeout, DEC);
 626IEEE80211_IF_FILE(dot11MeshHWMPRootMode,
 627                  u.mesh.mshcfg.dot11MeshHWMPRootMode, DEC);
 628IEEE80211_IF_FILE(dot11MeshGateAnnouncementProtocol,
 629                  u.mesh.mshcfg.dot11MeshGateAnnouncementProtocol, DEC);
 630IEEE80211_IF_FILE(dot11MeshHWMPRannInterval,
 631                  u.mesh.mshcfg.dot11MeshHWMPRannInterval, DEC);
 632IEEE80211_IF_FILE(dot11MeshForwarding, u.mesh.mshcfg.dot11MeshForwarding, DEC);
 633IEEE80211_IF_FILE(rssi_threshold, u.mesh.mshcfg.rssi_threshold, DEC);
 634IEEE80211_IF_FILE(ht_opmode, u.mesh.mshcfg.ht_opmode, DEC);
 635IEEE80211_IF_FILE(dot11MeshHWMPactivePathToRootTimeout,
 636                  u.mesh.mshcfg.dot11MeshHWMPactivePathToRootTimeout, DEC);
 637IEEE80211_IF_FILE(dot11MeshHWMProotInterval,
 638                  u.mesh.mshcfg.dot11MeshHWMProotInterval, DEC);
 639IEEE80211_IF_FILE(dot11MeshHWMPconfirmationInterval,
 640                  u.mesh.mshcfg.dot11MeshHWMPconfirmationInterval, DEC);
 641IEEE80211_IF_FILE(power_mode, u.mesh.mshcfg.power_mode, DEC);
 642IEEE80211_IF_FILE(dot11MeshAwakeWindowDuration,
 643                  u.mesh.mshcfg.dot11MeshAwakeWindowDuration, 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
 652static 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                DEBUGFS_ADD(aqm);
 664}
 665
 666static void add_sta_files(struct ieee80211_sub_if_data *sdata)
 667{
 668        DEBUGFS_ADD(bssid);
 669        DEBUGFS_ADD(aid);
 670        DEBUGFS_ADD(beacon_timeout);
 671        DEBUGFS_ADD_MODE(smps, 0600);
 672        DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
 673        DEBUGFS_ADD_MODE(beacon_loss, 0200);
 674        DEBUGFS_ADD_MODE(uapsd_queues, 0600);
 675        DEBUGFS_ADD_MODE(uapsd_max_sp_len, 0600);
 676        DEBUGFS_ADD_MODE(tdls_wider_bw, 0600);
 677}
 678
 679static void add_ap_files(struct ieee80211_sub_if_data *sdata)
 680{
 681        DEBUGFS_ADD(num_mcast_sta);
 682        DEBUGFS_ADD_MODE(smps, 0600);
 683        DEBUGFS_ADD(num_sta_ps);
 684        DEBUGFS_ADD(dtim_count);
 685        DEBUGFS_ADD(num_buffered_multicast);
 686        DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
 687        DEBUGFS_ADD_MODE(multicast_to_unicast, 0600);
 688}
 689
 690static void add_vlan_files(struct ieee80211_sub_if_data *sdata)
 691{
 692        /* add num_mcast_sta_vlan using name num_mcast_sta */
 693        debugfs_create_file("num_mcast_sta", 0400, sdata->vif.debugfs_dir,
 694                            sdata, &num_mcast_sta_vlan_ops);
 695}
 696
 697static void add_ibss_files(struct ieee80211_sub_if_data *sdata)
 698{
 699        DEBUGFS_ADD_MODE(tsf, 0600);
 700}
 701
 702static void add_wds_files(struct ieee80211_sub_if_data *sdata)
 703{
 704        DEBUGFS_ADD(peer);
 705}
 706
 707#ifdef CONFIG_MAC80211_MESH
 708
 709static void add_mesh_files(struct ieee80211_sub_if_data *sdata)
 710{
 711        DEBUGFS_ADD_MODE(tsf, 0600);
 712        DEBUGFS_ADD_MODE(estab_plinks, 0400);
 713}
 714
 715static void add_mesh_stats(struct ieee80211_sub_if_data *sdata)
 716{
 717        struct dentry *dir = debugfs_create_dir("mesh_stats",
 718                                                sdata->vif.debugfs_dir);
 719#define MESHSTATS_ADD(name)\
 720        debugfs_create_file(#name, 0400, dir, sdata, &name##_ops);
 721
 722        MESHSTATS_ADD(fwded_mcast);
 723        MESHSTATS_ADD(fwded_unicast);
 724        MESHSTATS_ADD(fwded_frames);
 725        MESHSTATS_ADD(dropped_frames_ttl);
 726        MESHSTATS_ADD(dropped_frames_no_route);
 727        MESHSTATS_ADD(dropped_frames_congestion);
 728#undef MESHSTATS_ADD
 729}
 730
 731static void add_mesh_config(struct ieee80211_sub_if_data *sdata)
 732{
 733        struct dentry *dir = debugfs_create_dir("mesh_config",
 734                                                sdata->vif.debugfs_dir);
 735
 736#define MESHPARAMS_ADD(name) \
 737        debugfs_create_file(#name, 0600, dir, sdata, &name##_ops);
 738
 739        MESHPARAMS_ADD(dot11MeshMaxRetries);
 740        MESHPARAMS_ADD(dot11MeshRetryTimeout);
 741        MESHPARAMS_ADD(dot11MeshConfirmTimeout);
 742        MESHPARAMS_ADD(dot11MeshHoldingTimeout);
 743        MESHPARAMS_ADD(dot11MeshTTL);
 744        MESHPARAMS_ADD(element_ttl);
 745        MESHPARAMS_ADD(auto_open_plinks);
 746        MESHPARAMS_ADD(dot11MeshMaxPeerLinks);
 747        MESHPARAMS_ADD(dot11MeshHWMPactivePathTimeout);
 748        MESHPARAMS_ADD(dot11MeshHWMPpreqMinInterval);
 749        MESHPARAMS_ADD(dot11MeshHWMPperrMinInterval);
 750        MESHPARAMS_ADD(dot11MeshHWMPnetDiameterTraversalTime);
 751        MESHPARAMS_ADD(dot11MeshHWMPmaxPREQretries);
 752        MESHPARAMS_ADD(path_refresh_time);
 753        MESHPARAMS_ADD(min_discovery_timeout);
 754        MESHPARAMS_ADD(dot11MeshHWMPRootMode);
 755        MESHPARAMS_ADD(dot11MeshHWMPRannInterval);
 756        MESHPARAMS_ADD(dot11MeshForwarding);
 757        MESHPARAMS_ADD(dot11MeshGateAnnouncementProtocol);
 758        MESHPARAMS_ADD(rssi_threshold);
 759        MESHPARAMS_ADD(ht_opmode);
 760        MESHPARAMS_ADD(dot11MeshHWMPactivePathToRootTimeout);
 761        MESHPARAMS_ADD(dot11MeshHWMProotInterval);
 762        MESHPARAMS_ADD(dot11MeshHWMPconfirmationInterval);
 763        MESHPARAMS_ADD(power_mode);
 764        MESHPARAMS_ADD(dot11MeshAwakeWindowDuration);
 765#undef MESHPARAMS_ADD
 766}
 767#endif
 768
 769static void add_files(struct ieee80211_sub_if_data *sdata)
 770{
 771        if (!sdata->vif.debugfs_dir)
 772                return;
 773
 774        DEBUGFS_ADD(flags);
 775        DEBUGFS_ADD(state);
 776        DEBUGFS_ADD(txpower);
 777        DEBUGFS_ADD(user_power_level);
 778        DEBUGFS_ADD(ap_power_level);
 779
 780        if (sdata->vif.type != NL80211_IFTYPE_MONITOR)
 781                add_common_files(sdata);
 782
 783        switch (sdata->vif.type) {
 784        case NL80211_IFTYPE_MESH_POINT:
 785#ifdef CONFIG_MAC80211_MESH
 786                add_mesh_files(sdata);
 787                add_mesh_stats(sdata);
 788                add_mesh_config(sdata);
 789#endif
 790                break;
 791        case NL80211_IFTYPE_STATION:
 792                add_sta_files(sdata);
 793                break;
 794        case NL80211_IFTYPE_ADHOC:
 795                add_ibss_files(sdata);
 796                break;
 797        case NL80211_IFTYPE_AP:
 798                add_ap_files(sdata);
 799                break;
 800        case NL80211_IFTYPE_AP_VLAN:
 801                add_vlan_files(sdata);
 802                break;
 803        case NL80211_IFTYPE_WDS:
 804                add_wds_files(sdata);
 805                break;
 806        default:
 807                break;
 808        }
 809}
 810
 811void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata)
 812{
 813        char buf[10+IFNAMSIZ];
 814
 815        sprintf(buf, "netdev:%s", sdata->name);
 816        sdata->vif.debugfs_dir = debugfs_create_dir(buf,
 817                sdata->local->hw.wiphy->debugfsdir);
 818        if (sdata->vif.debugfs_dir)
 819                sdata->debugfs.subdir_stations = debugfs_create_dir("stations",
 820                        sdata->vif.debugfs_dir);
 821        add_files(sdata);
 822}
 823
 824void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata)
 825{
 826        if (!sdata->vif.debugfs_dir)
 827                return;
 828
 829        debugfs_remove_recursive(sdata->vif.debugfs_dir);
 830        sdata->vif.debugfs_dir = NULL;
 831        sdata->debugfs.subdir_stations = NULL;
 832}
 833
 834void ieee80211_debugfs_rename_netdev(struct ieee80211_sub_if_data *sdata)
 835{
 836        struct dentry *dir;
 837        char buf[10 + IFNAMSIZ];
 838
 839        dir = sdata->vif.debugfs_dir;
 840
 841        if (!dir)
 842                return;
 843
 844        sprintf(buf, "netdev:%s", sdata->name);
 845        if (!debugfs_rename(dir->d_parent, dir, dir->d_parent, buf))
 846                sdata_err(sdata,
 847                          "debugfs: failed to rename debugfs dir to %s\n",
 848                          buf);
 849}
 850