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 if (sdata->dev->reg_state == NETREG_REGISTERED) 38 ret = (*format)(sdata, buf, sizeof(buf)); 39 read_unlock(&dev_base_lock); 40 41 if (ret >= 0) 42 ret = simple_read_from_buffer(userbuf, count, ppos, buf, ret); 43 44 return ret; 45 } 46 47 static ssize_t ieee80211_if_write( 48 struct ieee80211_sub_if_data *sdata, 49 const char __user *userbuf, 50 size_t count, loff_t *ppos, 51 ssize_t (*write)(struct ieee80211_sub_if_data *, const char *, int)) 52 { 53 char buf[64]; 54 ssize_t ret; 55 56 if (count >= sizeof(buf)) 57 return -E2BIG; 58 59 if (copy_from_user(buf, userbuf, count)) 60 return -EFAULT; 61 buf[count] = '\0'; 62 63 ret = -ENODEV; 64 rtnl_lock(); 65 if (sdata->dev->reg_state == NETREG_REGISTERED) 66 ret = (*write)(sdata, buf, count); 67 rtnl_unlock(); 68 69 return ret; 70 } 71 72 #define IEEE80211_IF_FMT(name, field, format_string) \ 73 static ssize_t ieee80211_if_fmt_##name( \ 74 const struct ieee80211_sub_if_data *sdata, char *buf, \ 75 int buflen) \ 76 { \ 77 return scnprintf(buf, buflen, format_string, sdata->field); \ 78 } 79 #define IEEE80211_IF_FMT_DEC(name, field) \ 80 IEEE80211_IF_FMT(name, field, "%d\n") 81 #define IEEE80211_IF_FMT_HEX(name, field) \ 82 IEEE80211_IF_FMT(name, field, "%#x\n") 83 #define IEEE80211_IF_FMT_LHEX(name, field) \ 84 IEEE80211_IF_FMT(name, field, "%#lx\n") 85 #define IEEE80211_IF_FMT_SIZE(name, field) \ 86 IEEE80211_IF_FMT(name, field, "%zd\n") 87 88 #define IEEE80211_IF_FMT_HEXARRAY(name, field) \ 89 static ssize_t ieee80211_if_fmt_##name( \ 90 const struct ieee80211_sub_if_data *sdata, \ 91 char *buf, int buflen) \ 92 { \ 93 char *p = buf; \ 94 int i; \ 95 for (i = 0; i < sizeof(sdata->field); i++) { \ 96 p += scnprintf(p, buflen + buf - p, "%.2x ", \ 97 sdata->field[i]); \ 98 } \ 99 p += scnprintf(p, buflen + buf - p, "\n"); \ 100 return p - buf; \ 101 } 102 103 #define IEEE80211_IF_FMT_ATOMIC(name, field) \ 104 static ssize_t ieee80211_if_fmt_##name( \ 105 const struct ieee80211_sub_if_data *sdata, \ 106 char *buf, int buflen) \ 107 { \ 108 return scnprintf(buf, buflen, "%d\n", atomic_read(&sdata->field));\ 109 } 110 111 #define IEEE80211_IF_FMT_MAC(name, field) \ 112 static ssize_t ieee80211_if_fmt_##name( \ 113 const struct ieee80211_sub_if_data *sdata, char *buf, \ 114 int buflen) \ 115 { \ 116 return scnprintf(buf, buflen, "%pM\n", sdata->field); \ 117 } 118 119 #define IEEE80211_IF_FMT_DEC_DIV_16(name, field) \ 120 static ssize_t ieee80211_if_fmt_##name( \ 121 const struct ieee80211_sub_if_data *sdata, \ 122 char *buf, int buflen) \ 123 { \ 124 return scnprintf(buf, buflen, "%d\n", sdata->field / 16); \ 125 } 126 127 #define IEEE80211_IF_FMT_JIFFIES_TO_MS(name, field) \ 128 static ssize_t ieee80211_if_fmt_##name( \ 129 const struct ieee80211_sub_if_data *sdata, \ 130 char *buf, int buflen) \ 131 { \ 132 return scnprintf(buf, buflen, "%d\n", \ 133 jiffies_to_msecs(sdata->field)); \ 134 } 135 136 #define __IEEE80211_IF_FILE(name, _write) \ 137 static ssize_t ieee80211_if_read_##name(struct file *file, \ 138 char __user *userbuf, \ 139 size_t count, loff_t *ppos) \ 140 { \ 141 return ieee80211_if_read(file->private_data, \ 142 userbuf, count, ppos, \ 143 ieee80211_if_fmt_##name); \ 144 } \ 145 static const struct file_operations name##_ops = { \ 146 .read = ieee80211_if_read_##name, \ 147 .write = (_write), \ 148 .open = simple_open, \ 149 .llseek = generic_file_llseek, \ 150 } 151 152 #define __IEEE80211_IF_FILE_W(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 __IEEE80211_IF_FILE(name, ieee80211_if_write_##name) 161 162 163 #define IEEE80211_IF_FILE(name, field, format) \ 164 IEEE80211_IF_FMT_##format(name, field) \ 165 __IEEE80211_IF_FILE(name, NULL) 166 167 /* common attributes */ 168 IEEE80211_IF_FILE(drop_unencrypted, drop_unencrypted, DEC); 169 IEEE80211_IF_FILE(rc_rateidx_mask_2ghz, rc_rateidx_mask[IEEE80211_BAND_2GHZ], 170 HEX); 171 IEEE80211_IF_FILE(rc_rateidx_mask_5ghz, rc_rateidx_mask[IEEE80211_BAND_5GHZ], 172 HEX); 173 IEEE80211_IF_FILE(rc_rateidx_mcs_mask_2ghz, 174 rc_rateidx_mcs_mask[IEEE80211_BAND_2GHZ], HEXARRAY); 175 IEEE80211_IF_FILE(rc_rateidx_mcs_mask_5ghz, 176 rc_rateidx_mcs_mask[IEEE80211_BAND_5GHZ], HEXARRAY); 177 178 IEEE80211_IF_FILE(flags, flags, HEX); 179 IEEE80211_IF_FILE(state, state, LHEX); 180 IEEE80211_IF_FILE(txpower, vif.bss_conf.txpower, DEC); 181 IEEE80211_IF_FILE(ap_power_level, ap_power_level, DEC); 182 IEEE80211_IF_FILE(user_power_level, user_power_level, DEC); 183 184 static ssize_t 185 ieee80211_if_fmt_hw_queues(const struct ieee80211_sub_if_data *sdata, 186 char *buf, int buflen) 187 { 188 int len; 189 190 len = scnprintf(buf, buflen, "AC queues: VO:%d VI:%d BE:%d BK:%d\n", 191 sdata->vif.hw_queue[IEEE80211_AC_VO], 192 sdata->vif.hw_queue[IEEE80211_AC_VI], 193 sdata->vif.hw_queue[IEEE80211_AC_BE], 194 sdata->vif.hw_queue[IEEE80211_AC_BK]); 195 196 if (sdata->vif.type == NL80211_IFTYPE_AP) 197 len += scnprintf(buf + len, buflen - len, "cab queue: %d\n", 198 sdata->vif.cab_queue); 199 200 return len; 201 } 202 __IEEE80211_IF_FILE(hw_queues, NULL); 203 204 /* STA attributes */ 205 IEEE80211_IF_FILE(bssid, u.mgd.bssid, MAC); 206 IEEE80211_IF_FILE(aid, u.mgd.aid, DEC); 207 IEEE80211_IF_FILE(last_beacon, u.mgd.last_beacon_signal, DEC); 208 IEEE80211_IF_FILE(ave_beacon, u.mgd.ave_beacon_signal, DEC_DIV_16); 209 IEEE80211_IF_FILE(beacon_timeout, u.mgd.beacon_timeout, JIFFIES_TO_MS); 210 211 static int ieee80211_set_smps(struct ieee80211_sub_if_data *sdata, 212 enum ieee80211_smps_mode smps_mode) 213 { 214 struct ieee80211_local *local = sdata->local; 215 int err; 216 217 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_STATIC_SMPS) && 218 smps_mode == IEEE80211_SMPS_STATIC) 219 return -EINVAL; 220 221 /* auto should be dynamic if in PS mode */ 222 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS) && 223 (smps_mode == IEEE80211_SMPS_DYNAMIC || 224 smps_mode == IEEE80211_SMPS_AUTOMATIC)) 225 return -EINVAL; 226 227 /* supported only on managed interfaces for now */ 228 if (sdata->vif.type != NL80211_IFTYPE_STATION) 229 return -EOPNOTSUPP; 230 231 mutex_lock(&sdata->u.mgd.mtx); 232 err = __ieee80211_request_smps(sdata, smps_mode); 233 mutex_unlock(&sdata->u.mgd.mtx); 234 235 return err; 236 } 237 238 static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = { 239 [IEEE80211_SMPS_AUTOMATIC] = "auto", 240 [IEEE80211_SMPS_OFF] = "off", 241 [IEEE80211_SMPS_STATIC] = "static", 242 [IEEE80211_SMPS_DYNAMIC] = "dynamic", 243 }; 244 245 static ssize_t ieee80211_if_fmt_smps(const struct ieee80211_sub_if_data *sdata, 246 char *buf, int buflen) 247 { 248 if (sdata->vif.type != NL80211_IFTYPE_STATION) 249 return -EOPNOTSUPP; 250 251 return snprintf(buf, buflen, "request: %s\nused: %s\n", 252 smps_modes[sdata->u.mgd.req_smps], 253 smps_modes[sdata->smps_mode]); 254 } 255 256 static ssize_t ieee80211_if_parse_smps(struct ieee80211_sub_if_data *sdata, 257 const char *buf, int buflen) 258 { 259 enum ieee80211_smps_mode mode; 260 261 for (mode = 0; mode < IEEE80211_SMPS_NUM_MODES; mode++) { 262 if (strncmp(buf, smps_modes[mode], buflen) == 0) { 263 int err = ieee80211_set_smps(sdata, mode); 264 if (!err) 265 return buflen; 266 return err; 267 } 268 } 269 270 return -EINVAL; 271 } 272 273 __IEEE80211_IF_FILE_W(smps); 274 275 static ssize_t ieee80211_if_fmt_tkip_mic_test( 276 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen) 277 { 278 return -EOPNOTSUPP; 279 } 280 281 static ssize_t ieee80211_if_parse_tkip_mic_test( 282 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen) 283 { 284 struct ieee80211_local *local = sdata->local; 285 u8 addr[ETH_ALEN]; 286 struct sk_buff *skb; 287 struct ieee80211_hdr *hdr; 288 __le16 fc; 289 290 if (!mac_pton(buf, addr)) 291 return -EINVAL; 292 293 if (!ieee80211_sdata_running(sdata)) 294 return -ENOTCONN; 295 296 skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24 + 100); 297 if (!skb) 298 return -ENOMEM; 299 skb_reserve(skb, local->hw.extra_tx_headroom); 300 301 hdr = (struct ieee80211_hdr *) skb_put(skb, 24); 302 memset(hdr, 0, 24); 303 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA); 304 305 switch (sdata->vif.type) { 306 case NL80211_IFTYPE_AP: 307 fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS); 308 /* DA BSSID SA */ 309 memcpy(hdr->addr1, addr, ETH_ALEN); 310 memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN); 311 memcpy(hdr->addr3, sdata->vif.addr, ETH_ALEN); 312 break; 313 case NL80211_IFTYPE_STATION: 314 fc |= cpu_to_le16(IEEE80211_FCTL_TODS); 315 /* BSSID SA DA */ 316 mutex_lock(&sdata->u.mgd.mtx); 317 if (!sdata->u.mgd.associated) { 318 mutex_unlock(&sdata->u.mgd.mtx); 319 dev_kfree_skb(skb); 320 return -ENOTCONN; 321 } 322 memcpy(hdr->addr1, sdata->u.mgd.associated->bssid, ETH_ALEN); 323 memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN); 324 memcpy(hdr->addr3, addr, ETH_ALEN); 325 mutex_unlock(&sdata->u.mgd.mtx); 326 break; 327 default: 328 dev_kfree_skb(skb); 329 return -EOPNOTSUPP; 330 } 331 hdr->frame_control = fc; 332 333 /* 334 * Add some length to the test frame to make it look bit more valid. 335 * The exact contents does not matter since the recipient is required 336 * to drop this because of the Michael MIC failure. 337 */ 338 memset(skb_put(skb, 50), 0, 50); 339 340 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_TKIP_MIC_FAILURE; 341 342 ieee80211_tx_skb(sdata, skb); 343 344 return buflen; 345 } 346 347 __IEEE80211_IF_FILE_W(tkip_mic_test); 348 349 static ssize_t ieee80211_if_fmt_uapsd_queues( 350 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen) 351 { 352 const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 353 354 return snprintf(buf, buflen, "0x%x\n", ifmgd->uapsd_queues); 355 } 356 357 static ssize_t ieee80211_if_parse_uapsd_queues( 358 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen) 359 { 360 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 361 u8 val; 362 int ret; 363 364 ret = kstrtou8(buf, 0, &val); 365 if (ret) 366 return ret; 367 368 if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK) 369 return -ERANGE; 370 371 ifmgd->uapsd_queues = val; 372 373 return buflen; 374 } 375 __IEEE80211_IF_FILE_W(uapsd_queues); 376 377 static ssize_t ieee80211_if_fmt_uapsd_max_sp_len( 378 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen) 379 { 380 const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 381 382 return snprintf(buf, buflen, "0x%x\n", ifmgd->uapsd_max_sp_len); 383 } 384 385 static ssize_t ieee80211_if_parse_uapsd_max_sp_len( 386 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen) 387 { 388 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 389 unsigned long val; 390 int ret; 391 392 ret = kstrtoul(buf, 0, &val); 393 if (ret) 394 return -EINVAL; 395 396 if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK) 397 return -ERANGE; 398 399 ifmgd->uapsd_max_sp_len = val; 400 401 return buflen; 402 } 403 __IEEE80211_IF_FILE_W(uapsd_max_sp_len); 404 405 /* AP attributes */ 406 IEEE80211_IF_FILE(num_mcast_sta, u.ap.num_mcast_sta, ATOMIC); 407 IEEE80211_IF_FILE(num_sta_ps, u.ap.ps.num_sta_ps, ATOMIC); 408 IEEE80211_IF_FILE(dtim_count, u.ap.ps.dtim_count, DEC); 409 410 static ssize_t ieee80211_if_fmt_num_buffered_multicast( 411 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen) 412 { 413 return scnprintf(buf, buflen, "%u\n", 414 skb_queue_len(&sdata->u.ap.ps.bc_buf)); 415 } 416 __IEEE80211_IF_FILE(num_buffered_multicast, NULL); 417 418 /* IBSS attributes */ 419 static ssize_t ieee80211_if_fmt_tsf( 420 const struct ieee80211_sub_if_data *sdata, char *buf, int buflen) 421 { 422 struct ieee80211_local *local = sdata->local; 423 u64 tsf; 424 425 tsf = drv_get_tsf(local, (struct ieee80211_sub_if_data *)sdata); 426 427 return scnprintf(buf, buflen, "0x%016llx\n", (unsigned long long) tsf); 428 } 429 430 static ssize_t ieee80211_if_parse_tsf( 431 struct ieee80211_sub_if_data *sdata, const char *buf, int buflen) 432 { 433 struct ieee80211_local *local = sdata->local; 434 unsigned long long tsf; 435 int ret; 436 int tsf_is_delta = 0; 437 438 if (strncmp(buf, "reset", 5) == 0) { 439 if (local->ops->reset_tsf) { 440 drv_reset_tsf(local, sdata); 441 wiphy_info(local->hw.wiphy, "debugfs reset TSF\n"); 442 } 443 } else { 444 if (buflen > 10 && buf[1] == '=') { 445 if (buf[0] == '+') 446 tsf_is_delta = 1; 447 else if (buf[0] == '-') 448 tsf_is_delta = -1; 449 else 450 return -EINVAL; 451 buf += 2; 452 } 453 ret = kstrtoull(buf, 10, &tsf); 454 if (ret < 0) 455 return ret; 456 if (tsf_is_delta) 457 tsf = drv_get_tsf(local, sdata) + tsf_is_delta * tsf; 458 if (local->ops->set_tsf) { 459 drv_set_tsf(local, sdata, tsf); 460 wiphy_info(local->hw.wiphy, 461 "debugfs set TSF to %#018llx\n", tsf); 462 } 463 } 464 465 return buflen; 466 } 467 __IEEE80211_IF_FILE_W(tsf); 468 469 470 /* WDS attributes */ 471 IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC); 472 473 #ifdef CONFIG_MAC80211_MESH 474 /* Mesh stats attributes */ 475 IEEE80211_IF_FILE(fwded_mcast, u.mesh.mshstats.fwded_mcast, DEC); 476 IEEE80211_IF_FILE(fwded_unicast, u.mesh.mshstats.fwded_unicast, DEC); 477 IEEE80211_IF_FILE(fwded_frames, u.mesh.mshstats.fwded_frames, DEC); 478 IEEE80211_IF_FILE(dropped_frames_ttl, u.mesh.mshstats.dropped_frames_ttl, DEC); 479 IEEE80211_IF_FILE(dropped_frames_congestion, 480 u.mesh.mshstats.dropped_frames_congestion, DEC); 481 IEEE80211_IF_FILE(dropped_frames_no_route, 482 u.mesh.mshstats.dropped_frames_no_route, DEC); 483 IEEE80211_IF_FILE(estab_plinks, u.mesh.estab_plinks, ATOMIC); 484 485 /* Mesh parameters */ 486 IEEE80211_IF_FILE(dot11MeshMaxRetries, 487 u.mesh.mshcfg.dot11MeshMaxRetries, DEC); 488 IEEE80211_IF_FILE(dot11MeshRetryTimeout, 489 u.mesh.mshcfg.dot11MeshRetryTimeout, DEC); 490 IEEE80211_IF_FILE(dot11MeshConfirmTimeout, 491 u.mesh.mshcfg.dot11MeshConfirmTimeout, DEC); 492 IEEE80211_IF_FILE(dot11MeshHoldingTimeout, 493 u.mesh.mshcfg.dot11MeshHoldingTimeout, DEC); 494 IEEE80211_IF_FILE(dot11MeshTTL, u.mesh.mshcfg.dot11MeshTTL, DEC); 495 IEEE80211_IF_FILE(element_ttl, u.mesh.mshcfg.element_ttl, DEC); 496 IEEE80211_IF_FILE(auto_open_plinks, u.mesh.mshcfg.auto_open_plinks, DEC); 497 IEEE80211_IF_FILE(dot11MeshMaxPeerLinks, 498 u.mesh.mshcfg.dot11MeshMaxPeerLinks, DEC); 499 IEEE80211_IF_FILE(dot11MeshHWMPactivePathTimeout, 500 u.mesh.mshcfg.dot11MeshHWMPactivePathTimeout, DEC); 501 IEEE80211_IF_FILE(dot11MeshHWMPpreqMinInterval, 502 u.mesh.mshcfg.dot11MeshHWMPpreqMinInterval, DEC); 503 IEEE80211_IF_FILE(dot11MeshHWMPperrMinInterval, 504 u.mesh.mshcfg.dot11MeshHWMPperrMinInterval, DEC); 505 IEEE80211_IF_FILE(dot11MeshHWMPnetDiameterTraversalTime, 506 u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime, DEC); 507 IEEE80211_IF_FILE(dot11MeshHWMPmaxPREQretries, 508 u.mesh.mshcfg.dot11MeshHWMPmaxPREQretries, DEC); 509 IEEE80211_IF_FILE(path_refresh_time, 510 u.mesh.mshcfg.path_refresh_time, DEC); 511 IEEE80211_IF_FILE(min_discovery_timeout, 512 u.mesh.mshcfg.min_discovery_timeout, DEC); 513 IEEE80211_IF_FILE(dot11MeshHWMPRootMode, 514 u.mesh.mshcfg.dot11MeshHWMPRootMode, DEC); 515 IEEE80211_IF_FILE(dot11MeshGateAnnouncementProtocol, 516 u.mesh.mshcfg.dot11MeshGateAnnouncementProtocol, DEC); 517 IEEE80211_IF_FILE(dot11MeshHWMPRannInterval, 518 u.mesh.mshcfg.dot11MeshHWMPRannInterval, DEC); 519 IEEE80211_IF_FILE(dot11MeshForwarding, u.mesh.mshcfg.dot11MeshForwarding, DEC); 520 IEEE80211_IF_FILE(rssi_threshold, u.mesh.mshcfg.rssi_threshold, DEC); 521 IEEE80211_IF_FILE(ht_opmode, u.mesh.mshcfg.ht_opmode, DEC); 522 IEEE80211_IF_FILE(dot11MeshHWMPactivePathToRootTimeout, 523 u.mesh.mshcfg.dot11MeshHWMPactivePathToRootTimeout, DEC); 524 IEEE80211_IF_FILE(dot11MeshHWMProotInterval, 525 u.mesh.mshcfg.dot11MeshHWMProotInterval, DEC); 526 IEEE80211_IF_FILE(dot11MeshHWMPconfirmationInterval, 527 u.mesh.mshcfg.dot11MeshHWMPconfirmationInterval, DEC); 528 IEEE80211_IF_FILE(power_mode, u.mesh.mshcfg.power_mode, DEC); 529 IEEE80211_IF_FILE(dot11MeshAwakeWindowDuration, 530 u.mesh.mshcfg.dot11MeshAwakeWindowDuration, DEC); 531 #endif 532 533 #define DEBUGFS_ADD_MODE(name, mode) \ 534 debugfs_create_file(#name, mode, sdata->vif.debugfs_dir, \ 535 sdata, &name##_ops); 536 537 #define DEBUGFS_ADD(name) DEBUGFS_ADD_MODE(name, 0400) 538 539 static void add_common_files(struct ieee80211_sub_if_data *sdata) 540 { 541 DEBUGFS_ADD(drop_unencrypted); 542 DEBUGFS_ADD(rc_rateidx_mask_2ghz); 543 DEBUGFS_ADD(rc_rateidx_mask_5ghz); 544 DEBUGFS_ADD(rc_rateidx_mcs_mask_2ghz); 545 DEBUGFS_ADD(rc_rateidx_mcs_mask_5ghz); 546 DEBUGFS_ADD(hw_queues); 547 } 548 549 static void add_sta_files(struct ieee80211_sub_if_data *sdata) 550 { 551 DEBUGFS_ADD(bssid); 552 DEBUGFS_ADD(aid); 553 DEBUGFS_ADD(last_beacon); 554 DEBUGFS_ADD(ave_beacon); 555 DEBUGFS_ADD(beacon_timeout); 556 DEBUGFS_ADD_MODE(smps, 0600); 557 DEBUGFS_ADD_MODE(tkip_mic_test, 0200); 558 DEBUGFS_ADD_MODE(uapsd_queues, 0600); 559 DEBUGFS_ADD_MODE(uapsd_max_sp_len, 0600); 560 } 561 562 static void add_ap_files(struct ieee80211_sub_if_data *sdata) 563 { 564 DEBUGFS_ADD(num_mcast_sta); 565 DEBUGFS_ADD(num_sta_ps); 566 DEBUGFS_ADD(dtim_count); 567 DEBUGFS_ADD(num_buffered_multicast); 568 DEBUGFS_ADD_MODE(tkip_mic_test, 0200); 569 } 570 571 static void add_ibss_files(struct ieee80211_sub_if_data *sdata) 572 { 573 DEBUGFS_ADD_MODE(tsf, 0600); 574 } 575 576 static void add_wds_files(struct ieee80211_sub_if_data *sdata) 577 { 578 DEBUGFS_ADD(peer); 579 } 580 581 #ifdef CONFIG_MAC80211_MESH 582 583 static void add_mesh_files(struct ieee80211_sub_if_data *sdata) 584 { 585 DEBUGFS_ADD_MODE(tsf, 0600); 586 } 587 588 static void add_mesh_stats(struct ieee80211_sub_if_data *sdata) 589 { 590 struct dentry *dir = debugfs_create_dir("mesh_stats", 591 sdata->vif.debugfs_dir); 592 #define MESHSTATS_ADD(name)\ 593 debugfs_create_file(#name, 0400, dir, sdata, &name##_ops); 594 595 MESHSTATS_ADD(fwded_mcast); 596 MESHSTATS_ADD(fwded_unicast); 597 MESHSTATS_ADD(fwded_frames); 598 MESHSTATS_ADD(dropped_frames_ttl); 599 MESHSTATS_ADD(dropped_frames_no_route); 600 MESHSTATS_ADD(dropped_frames_congestion); 601 MESHSTATS_ADD(estab_plinks); 602 #undef MESHSTATS_ADD 603 } 604 605 static void add_mesh_config(struct ieee80211_sub_if_data *sdata) 606 { 607 struct dentry *dir = debugfs_create_dir("mesh_config", 608 sdata->vif.debugfs_dir); 609 610 #define MESHPARAMS_ADD(name) \ 611 debugfs_create_file(#name, 0600, dir, sdata, &name##_ops); 612 613 MESHPARAMS_ADD(dot11MeshMaxRetries); 614 MESHPARAMS_ADD(dot11MeshRetryTimeout); 615 MESHPARAMS_ADD(dot11MeshConfirmTimeout); 616 MESHPARAMS_ADD(dot11MeshHoldingTimeout); 617 MESHPARAMS_ADD(dot11MeshTTL); 618 MESHPARAMS_ADD(element_ttl); 619 MESHPARAMS_ADD(auto_open_plinks); 620 MESHPARAMS_ADD(dot11MeshMaxPeerLinks); 621 MESHPARAMS_ADD(dot11MeshHWMPactivePathTimeout); 622 MESHPARAMS_ADD(dot11MeshHWMPpreqMinInterval); 623 MESHPARAMS_ADD(dot11MeshHWMPperrMinInterval); 624 MESHPARAMS_ADD(dot11MeshHWMPnetDiameterTraversalTime); 625 MESHPARAMS_ADD(dot11MeshHWMPmaxPREQretries); 626 MESHPARAMS_ADD(path_refresh_time); 627 MESHPARAMS_ADD(min_discovery_timeout); 628 MESHPARAMS_ADD(dot11MeshHWMPRootMode); 629 MESHPARAMS_ADD(dot11MeshHWMPRannInterval); 630 MESHPARAMS_ADD(dot11MeshForwarding); 631 MESHPARAMS_ADD(dot11MeshGateAnnouncementProtocol); 632 MESHPARAMS_ADD(rssi_threshold); 633 MESHPARAMS_ADD(ht_opmode); 634 MESHPARAMS_ADD(dot11MeshHWMPactivePathToRootTimeout); 635 MESHPARAMS_ADD(dot11MeshHWMProotInterval); 636 MESHPARAMS_ADD(dot11MeshHWMPconfirmationInterval); 637 MESHPARAMS_ADD(power_mode); 638 MESHPARAMS_ADD(dot11MeshAwakeWindowDuration); 639 #undef MESHPARAMS_ADD 640 } 641 #endif 642 643 static void add_files(struct ieee80211_sub_if_data *sdata) 644 { 645 if (!sdata->vif.debugfs_dir) 646 return; 647 648 DEBUGFS_ADD(flags); 649 DEBUGFS_ADD(state); 650 DEBUGFS_ADD(txpower); 651 DEBUGFS_ADD(user_power_level); 652 DEBUGFS_ADD(ap_power_level); 653 654 if (sdata->vif.type != NL80211_IFTYPE_MONITOR) 655 add_common_files(sdata); 656 657 switch (sdata->vif.type) { 658 case NL80211_IFTYPE_MESH_POINT: 659 #ifdef CONFIG_MAC80211_MESH 660 add_mesh_files(sdata); 661 add_mesh_stats(sdata); 662 add_mesh_config(sdata); 663 #endif 664 break; 665 case NL80211_IFTYPE_STATION: 666 add_sta_files(sdata); 667 break; 668 case NL80211_IFTYPE_ADHOC: 669 add_ibss_files(sdata); 670 break; 671 case NL80211_IFTYPE_AP: 672 add_ap_files(sdata); 673 break; 674 case NL80211_IFTYPE_WDS: 675 add_wds_files(sdata); 676 break; 677 default: 678 break; 679 } 680 } 681 682 void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata) 683 { 684 char buf[10+IFNAMSIZ]; 685 686 sprintf(buf, "netdev:%s", sdata->name); 687 sdata->vif.debugfs_dir = debugfs_create_dir(buf, 688 sdata->local->hw.wiphy->debugfsdir); 689 if (sdata->vif.debugfs_dir) 690 sdata->debugfs.subdir_stations = debugfs_create_dir("stations", 691 sdata->vif.debugfs_dir); 692 add_files(sdata); 693 } 694 695 void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata) 696 { 697 if (!sdata->vif.debugfs_dir) 698 return; 699 700 debugfs_remove_recursive(sdata->vif.debugfs_dir); 701 sdata->vif.debugfs_dir = NULL; 702 } 703 704 void ieee80211_debugfs_rename_netdev(struct ieee80211_sub_if_data *sdata) 705 { 706 struct dentry *dir; 707 char buf[10 + IFNAMSIZ]; 708 709 dir = sdata->vif.debugfs_dir; 710 711 if (!dir) 712 return; 713 714 sprintf(buf, "netdev:%s", sdata->name); 715 if (!debugfs_rename(dir->d_parent, dir, dir->d_parent, buf)) 716 sdata_err(sdata, 717 "debugfs: failed to rename debugfs dir to %s\n", 718 buf); 719 } 720