net/mac80211/ieee80211_i.h

   1 /*
   2  * Copyright 2002-2005, Instant802 Networks, Inc.
   3  * Copyright 2005, Devicescape Software, Inc.
   4  * Copyright 2006-2007  Jiri Benc <jbenc@suse.cz>
   5  * Copyright 2007-2008  Johannes Berg <johannes@sipsolutions.net>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10  */
  11
  12 #ifndef IEEE80211_I_H
  13 #define IEEE80211_I_H
  14
  15 #include <linux/kernel.h>
  16 #include <linux/device.h>
  17 #include <linux/if_ether.h>
  18 #include <linux/interrupt.h>
  19 #include <linux/list.h>
  20 #include <linux/netdevice.h>
  21 #include <linux/skbuff.h>
  22 #include <linux/workqueue.h>
  23 #include <linux/types.h>
  24 #include <linux/spinlock.h>
  25 #include <linux/etherdevice.h>
  26 #include <net/cfg80211.h>
  27 #include <net/wireless.h>
  28 #include <net/iw_handler.h>
  29 #include <net/mac80211.h>
  30 #include "key.h"
  31 #include "sta_info.h"
  32
  33 struct ieee80211_local;
  34
  35 /* Maximum number of broadcast/multicast frames to buffer when some of the
  36  * associated stations are using power saving. */
  37 #define AP_MAX_BC_BUFFER 128
  38
  39 /* Maximum number of frames buffered to all STAs, including multicast frames.
  40  * Note: increasing this limit increases the potential memory requirement. Each
  41  * frame can be up to about 2 kB long. */
  42 #define TOTAL_MAX_TX_BUFFER 512
  43
  44 /* Required encryption head and tailroom */
  45 #define IEEE80211_ENCRYPT_HEADROOM 8
  46 #define IEEE80211_ENCRYPT_TAILROOM 18
  47
  48 /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
  49  * reception of at least three fragmented frames. This limit can be increased
  50  * by changing this define, at the cost of slower frame reassembly and
  51  * increased memory use (about 2 kB of RAM per entry). */
  52 #define IEEE80211_FRAGMENT_MAX 4
  53
  54 /*
  55  * Time after which we ignore scan results and no longer report/use
  56  * them in any way.
  57  */
  58 #define IEEE80211_SCAN_RESULT_EXPIRE (10 * HZ)
  59
  60 #define TU_TO_EXP_TIME(x)       (jiffies + usecs_to_jiffies((x) * 1024))
  61
  62 struct ieee80211_fragment_entry {
  63         unsigned long first_frag_time;
  64         unsigned int seq;
  65         unsigned int rx_queue;
  66         unsigned int last_frag;
  67         unsigned int extra_len;
  68         struct sk_buff_head skb_list;
  69         int ccmp; /* Whether fragments were encrypted with CCMP */
  70         u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
  71 };
  72
  73
  74 struct ieee80211_bss {
  75         /* Yes, this is a hack */
  76         struct cfg80211_bss cbss;
  77
  78         /* don't want to look up all the time */
  79         size_t ssid_len;
  80         u8 ssid[IEEE80211_MAX_SSID_LEN];
  81
  82         u8 dtim_period;
  83
  84         bool wmm_used;
  85
  86         unsigned long last_probe_resp;
  87
  88 #ifdef CONFIG_MAC80211_MESH
  89         u8 *mesh_id;
  90         size_t mesh_id_len;
  91         u8 *mesh_cfg;
  92 #endif
  93
  94 #define IEEE80211_MAX_SUPP_RATES 32
  95         u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
  96         size_t supp_rates_len;
  97
  98         /*
  99          * During assocation, we save an ERP value from a probe response so
 100          * that we can feed ERP info to the driver when handling the
 101          * association completes. these fields probably won't be up-to-date
 102          * otherwise, you probably don't want to use them.
 103          */
 104         bool has_erp_value;
 105         u8 erp_value;
 106 };
 107
 108 static inline u8 *bss_mesh_cfg(struct ieee80211_bss *bss)
 109 {
 110 #ifdef CONFIG_MAC80211_MESH
 111         return bss->mesh_cfg;
 112 #endif
 113         return NULL;
 114 }
 115
 116 static inline u8 *bss_mesh_id(struct ieee80211_bss *bss)
 117 {
 118 #ifdef CONFIG_MAC80211_MESH
 119         return bss->mesh_id;
 120 #endif
 121         return NULL;
 122 }
 123
 124 static inline u8 bss_mesh_id_len(struct ieee80211_bss *bss)
 125 {
 126 #ifdef CONFIG_MAC80211_MESH
 127         return bss->mesh_id_len;
 128 #endif
 129         return 0;
 130 }
 131
 132
 133 typedef unsigned __bitwise__ ieee80211_tx_result;
 134 #define TX_CONTINUE     ((__force ieee80211_tx_result) 0u)
 135 #define TX_DROP         ((__force ieee80211_tx_result) 1u)
 136 #define TX_QUEUED       ((__force ieee80211_tx_result) 2u)
 137
 138 #define IEEE80211_TX_FRAGMENTED         BIT(0)
 139 #define IEEE80211_TX_UNICAST            BIT(1)
 140 #define IEEE80211_TX_PS_BUFFERED        BIT(2)
 141
 142 struct ieee80211_tx_data {
 143         struct sk_buff *skb;
 144         struct net_device *dev;
 145         struct ieee80211_local *local;
 146         struct ieee80211_sub_if_data *sdata;
 147         struct sta_info *sta;
 148         struct ieee80211_key *key;
 149
 150         struct ieee80211_channel *channel;
 151
 152         /* Extra fragments (in addition to the first fragment
 153          * in skb) */
 154         struct sk_buff **extra_frag;
 155         int num_extra_frag;
 156
 157         u16 ethertype;
 158         unsigned int flags;
 159 };
 160
 161
 162 typedef unsigned __bitwise__ ieee80211_rx_result;
 163 #define RX_CONTINUE             ((__force ieee80211_rx_result) 0u)
 164 #define RX_DROP_UNUSABLE        ((__force ieee80211_rx_result) 1u)
 165 #define RX_DROP_MONITOR         ((__force ieee80211_rx_result) 2u)
 166 #define RX_QUEUED               ((__force ieee80211_rx_result) 3u)
 167
 168 #define IEEE80211_RX_IN_SCAN            BIT(0)
 169 /* frame is destined to interface currently processed (incl. multicast frames) */
 170 #define IEEE80211_RX_RA_MATCH           BIT(1)
 171 #define IEEE80211_RX_AMSDU              BIT(2)
 172 #define IEEE80211_RX_CMNTR_REPORTED     BIT(3)
 173 #define IEEE80211_RX_FRAGMENTED         BIT(4)
 174
 175 struct ieee80211_rx_data {
 176         struct sk_buff *skb;
 177         struct net_device *dev;
 178         struct ieee80211_local *local;
 179         struct ieee80211_sub_if_data *sdata;
 180         struct sta_info *sta;
 181         struct ieee80211_key *key;
 182         struct ieee80211_rx_status *status;
 183         struct ieee80211_rate *rate;
 184
 185         unsigned int flags;
 186         int sent_ps_buffered;
 187         int queue;
 188         u32 tkip_iv32;
 189         u16 tkip_iv16;
 190 };
 191
 192 struct ieee80211_tx_stored_packet {
 193         struct sk_buff *skb;
 194         struct sk_buff **extra_frag;
 195         int num_extra_frag;
 196 };
 197
 198 struct beacon_data {
 199         u8 *head, *tail;
 200         int head_len, tail_len;
 201         int dtim_period;
 202 };
 203
 204 struct ieee80211_if_ap {
 205         struct beacon_data *beacon;
 206
 207         struct list_head vlans;
 208
 209         /* yes, this looks ugly, but guarantees that we can later use
 210          * bitmap_empty :)
 211          * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
 212         u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
 213         struct sk_buff_head ps_bc_buf;
 214         atomic_t num_sta_ps; /* number of stations in PS mode */
 215         int dtim_count;
 216 };
 217
 218 struct ieee80211_if_wds {
 219         struct sta_info *sta;
 220         u8 remote_addr[ETH_ALEN];
 221 };
 222
 223 struct ieee80211_if_vlan {
 224         struct list_head list;
 225 };
 226
 227 struct mesh_stats {
 228         __u32 fwded_frames;             /* Mesh forwarded frames */
 229         __u32 dropped_frames_ttl;       /* Not transmitted since mesh_ttl == 0*/
 230         __u32 dropped_frames_no_route;  /* Not transmitted, no route found */
 231         atomic_t estab_plinks;
 232 };
 233
 234 #define PREQ_Q_F_START          0x1
 235 #define PREQ_Q_F_REFRESH        0x2
 236 struct mesh_preq_queue {
 237         struct list_head list;
 238         u8 dst[ETH_ALEN];
 239         u8 flags;
 240 };
 241
 242 /* flags used in struct ieee80211_if_managed.flags */
 243 #define IEEE80211_STA_SSID_SET          BIT(0)
 244 #define IEEE80211_STA_BSSID_SET         BIT(1)
 245 #define IEEE80211_STA_PREV_BSSID_SET    BIT(2)
 246 #define IEEE80211_STA_AUTHENTICATED     BIT(3)
 247 #define IEEE80211_STA_ASSOCIATED        BIT(4)
 248 #define IEEE80211_STA_PROBEREQ_POLL     BIT(5)
 249 #define IEEE80211_STA_CREATE_IBSS       BIT(6)
 250 /* hole at 7, please re-use */
 251 #define IEEE80211_STA_WMM_ENABLED       BIT(8)
 252 /* hole at 9, please re-use */
 253 #define IEEE80211_STA_AUTO_SSID_SEL     BIT(10)
 254 #define IEEE80211_STA_AUTO_BSSID_SEL    BIT(11)
 255 #define IEEE80211_STA_AUTO_CHANNEL_SEL  BIT(12)
 256 #define IEEE80211_STA_PRIVACY_INVOKED   BIT(13)
 257 #define IEEE80211_STA_TKIP_WEP_USED     BIT(14)
 258 #define IEEE80211_STA_CSA_RECEIVED      BIT(15)
 259 #define IEEE80211_STA_MFP_ENABLED       BIT(16)
 260 #define IEEE80211_STA_EXT_SME           BIT(17)
 261 /* flags for MLME request */
 262 #define IEEE80211_STA_REQ_SCAN 0
 263 #define IEEE80211_STA_REQ_DIRECT_PROBE 1
 264 #define IEEE80211_STA_REQ_AUTH 2
 265 #define IEEE80211_STA_REQ_RUN  3
 266
 267 /* bitfield of allowed auth algs */
 268 #define IEEE80211_AUTH_ALG_OPEN BIT(0)
 269 #define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
 270 #define IEEE80211_AUTH_ALG_LEAP BIT(2)
 271 #define IEEE80211_AUTH_ALG_FT BIT(3)
 272
 273 struct ieee80211_if_managed {
 274         struct timer_list timer;
 275         struct timer_list chswitch_timer;
 276         struct work_struct work;
 277         struct work_struct chswitch_work;
 278         struct work_struct beacon_loss_work;
 279
 280         u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
 281
 282         u8 ssid[IEEE80211_MAX_SSID_LEN];
 283         size_t ssid_len;
 284
 285         enum {
 286                 IEEE80211_STA_MLME_DISABLED,
 287                 IEEE80211_STA_MLME_DIRECT_PROBE,
 288                 IEEE80211_STA_MLME_AUTHENTICATE,
 289                 IEEE80211_STA_MLME_ASSOCIATE,
 290                 IEEE80211_STA_MLME_ASSOCIATED,
 291         } state;
 292
 293         u16 aid;
 294         u16 ap_capab, capab;
 295         u8 *extra_ie; /* to be added to the end of AssocReq */
 296         size_t extra_ie_len;
 297
 298         /* The last AssocReq/Resp IEs */
 299         u8 *assocreq_ies, *assocresp_ies;
 300         size_t assocreq_ies_len, assocresp_ies_len;
 301
 302         struct sk_buff_head skb_queue;
 303
 304         int assoc_scan_tries; /* number of scans done pre-association */
 305         int direct_probe_tries; /* retries for direct probes */
 306         int auth_tries; /* retries for auth req */
 307         int assoc_tries; /* retries for assoc req */
 308
 309         unsigned long request;
 310
 311         unsigned long last_probe;
 312         unsigned long last_beacon;
 313
 314         unsigned int flags;
 315
 316         unsigned int auth_algs; /* bitfield of allowed auth algs */
 317         int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
 318         int auth_transaction;
 319
 320         enum {
 321                 IEEE80211_MFP_DISABLED,
 322                 IEEE80211_MFP_OPTIONAL,
 323                 IEEE80211_MFP_REQUIRED
 324         } mfp; /* management frame protection */
 325
 326         int wmm_last_param_set;
 327
 328         /* Extra IE data for management frames */
 329         u8 *sme_auth_ie;
 330         size_t sme_auth_ie_len;
 331 };
 332
 333 enum ieee80211_ibss_flags {
 334         IEEE80211_IBSS_AUTO_CHANNEL_SEL         = BIT(0),
 335         IEEE80211_IBSS_AUTO_BSSID_SEL           = BIT(1),
 336         IEEE80211_IBSS_BSSID_SET                = BIT(2),
 337         IEEE80211_IBSS_PREV_BSSID_SET           = BIT(3),
 338         IEEE80211_IBSS_SSID_SET                 = BIT(4),
 339 };
 340
 341 enum ieee80211_ibss_request {
 342         IEEE80211_IBSS_REQ_RUN  = 0,
 343 };
 344
 345 struct ieee80211_if_ibss {
 346         struct timer_list timer;
 347         struct work_struct work;
 348
 349         struct sk_buff_head skb_queue;
 350
 351         u8 ssid[IEEE80211_MAX_SSID_LEN];
 352         u8 ssid_len;
 353
 354         u32 flags;
 355
 356         u8 bssid[ETH_ALEN];
 357
 358         unsigned long request;
 359
 360         unsigned long ibss_join_req;
 361         struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
 362
 363         enum {
 364                 IEEE80211_IBSS_MLME_SEARCH,
 365                 IEEE80211_IBSS_MLME_JOINED,
 366         } state;
 367 };
 368
 369 struct ieee80211_if_mesh {
 370         struct work_struct work;
 371         struct timer_list housekeeping_timer;
 372         struct timer_list mesh_path_timer;
 373         struct sk_buff_head skb_queue;
 374
 375         bool housekeeping;
 376
 377         u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
 378         size_t mesh_id_len;
 379         /* Active Path Selection Protocol Identifier */
 380         u8 mesh_pp_id[4];
 381         /* Active Path Selection Metric Identifier */
 382         u8 mesh_pm_id[4];
 383         /* Congestion Control Mode Identifier */
 384         u8 mesh_cc_id[4];
 385         /* Local mesh Destination Sequence Number */
 386         u32 dsn;
 387         /* Last used PREQ ID */
 388         u32 preq_id;
 389         atomic_t mpaths;
 390         /* Timestamp of last DSN update */
 391         unsigned long last_dsn_update;
 392         /* Timestamp of last DSN sent */
 393         unsigned long last_preq;
 394         struct mesh_rmc *rmc;
 395         spinlock_t mesh_preq_queue_lock;
 396         struct mesh_preq_queue preq_queue;
 397         int preq_queue_len;
 398         struct mesh_stats mshstats;
 399         struct mesh_config mshcfg;
 400         u32 mesh_seqnum;
 401         bool accepting_plinks;
 402 };
 403
 404 #ifdef CONFIG_MAC80211_MESH
 405 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
 406         do { (msh)->mshstats.name++; } while (0)
 407 #else
 408 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
 409         do { } while (0)
 410 #endif
 411
 412 /**
 413  * enum ieee80211_sub_if_data_flags - virtual interface flags
 414  *
 415  * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
 416  * @IEEE80211_SDATA_PROMISC: interface is promisc
 417  * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
 418  * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
 419  *      associated stations and deliver multicast frames both
 420  *      back to wireless media and to the local net stack.
 421  */
 422 enum ieee80211_sub_if_data_flags {
 423         IEEE80211_SDATA_ALLMULTI                = BIT(0),
 424         IEEE80211_SDATA_PROMISC                 = BIT(1),
 425         IEEE80211_SDATA_OPERATING_GMODE         = BIT(2),
 426         IEEE80211_SDATA_DONT_BRIDGE_PACKETS     = BIT(3),
 427 };
 428
 429 struct ieee80211_sub_if_data {
 430         struct list_head list;
 431
 432         struct wireless_dev wdev;
 433
 434         /* keys */
 435         struct list_head key_list;
 436
 437         struct net_device *dev;
 438         struct ieee80211_local *local;
 439
 440         unsigned int flags;
 441
 442         int drop_unencrypted;
 443
 444         /* Fragment table for host-based reassembly */
 445         struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
 446         unsigned int fragment_next;
 447
 448 #define NUM_DEFAULT_KEYS 4
 449 #define NUM_DEFAULT_MGMT_KEYS 2
 450         struct ieee80211_key *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
 451         struct ieee80211_key *default_key;
 452         struct ieee80211_key *default_mgmt_key;
 453
 454         u16 sequence_number;
 455
 456         /*
 457          * AP this belongs to: self in AP mode and
 458          * corresponding AP in VLAN mode, NULL for
 459          * all others (might be needed later in IBSS)
 460          */
 461         struct ieee80211_if_ap *bss;
 462
 463         int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
 464         int max_ratectrl_rateidx; /* max TX rateidx for rate control */
 465
 466         union {
 467                 struct ieee80211_if_ap ap;
 468                 struct ieee80211_if_wds wds;
 469                 struct ieee80211_if_vlan vlan;
 470                 struct ieee80211_if_managed mgd;
 471                 struct ieee80211_if_ibss ibss;
 472 #ifdef CONFIG_MAC80211_MESH
 473                 struct ieee80211_if_mesh mesh;
 474 #endif
 475                 u32 mntr_flags;
 476         } u;
 477
 478 #ifdef CONFIG_MAC80211_DEBUGFS
 479         struct dentry *debugfsdir;
 480         union {
 481                 struct {
 482                         struct dentry *drop_unencrypted;
 483                         struct dentry *state;
 484                         struct dentry *bssid;
 485                         struct dentry *prev_bssid;
 486                         struct dentry *ssid_len;
 487                         struct dentry *aid;
 488                         struct dentry *ap_capab;
 489                         struct dentry *capab;
 490                         struct dentry *extra_ie_len;
 491                         struct dentry *auth_tries;
 492                         struct dentry *assoc_tries;
 493                         struct dentry *auth_algs;
 494                         struct dentry *auth_alg;
 495                         struct dentry *auth_transaction;
 496                         struct dentry *flags;
 497                         struct dentry *force_unicast_rateidx;
 498                         struct dentry *max_ratectrl_rateidx;
 499                 } sta;
 500                 struct {
 501                         struct dentry *drop_unencrypted;
 502                         struct dentry *num_sta_ps;
 503                         struct dentry *dtim_count;
 504                         struct dentry *force_unicast_rateidx;
 505                         struct dentry *max_ratectrl_rateidx;
 506                         struct dentry *num_buffered_multicast;
 507                 } ap;
 508                 struct {
 509                         struct dentry *drop_unencrypted;
 510                         struct dentry *peer;
 511                         struct dentry *force_unicast_rateidx;
 512                         struct dentry *max_ratectrl_rateidx;
 513                 } wds;
 514                 struct {
 515                         struct dentry *drop_unencrypted;
 516                         struct dentry *force_unicast_rateidx;
 517                         struct dentry *max_ratectrl_rateidx;
 518                 } vlan;
 519                 struct {
 520                         struct dentry *mode;
 521                 } monitor;
 522         } debugfs;
 523         struct {
 524                 struct dentry *default_key;
 525                 struct dentry *default_mgmt_key;
 526         } common_debugfs;
 527
 528 #ifdef CONFIG_MAC80211_MESH
 529         struct dentry *mesh_stats_dir;
 530         struct {
 531                 struct dentry *fwded_frames;
 532                 struct dentry *dropped_frames_ttl;
 533                 struct dentry *dropped_frames_no_route;
 534                 struct dentry *estab_plinks;
 535                 struct timer_list mesh_path_timer;
 536         } mesh_stats;
 537
 538         struct dentry *mesh_config_dir;
 539         struct {
 540                 struct dentry *dot11MeshRetryTimeout;
 541                 struct dentry *dot11MeshConfirmTimeout;
 542                 struct dentry *dot11MeshHoldingTimeout;
 543                 struct dentry *dot11MeshMaxRetries;
 544                 struct dentry *dot11MeshTTL;
 545                 struct dentry *auto_open_plinks;
 546                 struct dentry *dot11MeshMaxPeerLinks;
 547                 struct dentry *dot11MeshHWMPactivePathTimeout;
 548                 struct dentry *dot11MeshHWMPpreqMinInterval;
 549                 struct dentry *dot11MeshHWMPnetDiameterTraversalTime;
 550                 struct dentry *dot11MeshHWMPmaxPREQretries;
 551                 struct dentry *path_refresh_time;
 552                 struct dentry *min_discovery_timeout;
 553         } mesh_config;
 554 #endif
 555
 556 #endif
 557         /* must be last, dynamically sized area in this! */
 558         struct ieee80211_vif vif;
 559 };
 560
 561 static inline
 562 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
 563 {
 564         return container_of(p, struct ieee80211_sub_if_data, vif);
 565 }
 566
 567 static inline void
 568 ieee80211_sdata_set_mesh_id(struct ieee80211_sub_if_data *sdata,
 569                             u8 mesh_id_len, u8 *mesh_id)
 570 {
 571 #ifdef CONFIG_MAC80211_MESH
 572         struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
 573         ifmsh->mesh_id_len = mesh_id_len;
 574         memcpy(ifmsh->mesh_id, mesh_id, mesh_id_len);
 575 #else
 576         WARN_ON(1);
 577 #endif
 578 }
 579
 580 enum {
 581         IEEE80211_RX_MSG        = 1,
 582         IEEE80211_TX_STATUS_MSG = 2,
 583         IEEE80211_DELBA_MSG     = 3,
 584         IEEE80211_ADDBA_MSG     = 4,
 585 };
 586
 587 enum queue_stop_reason {
 588         IEEE80211_QUEUE_STOP_REASON_DRIVER,
 589         IEEE80211_QUEUE_STOP_REASON_PS,
 590         IEEE80211_QUEUE_STOP_REASON_CSA,
 591         IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
 592         IEEE80211_QUEUE_STOP_REASON_SUSPEND,
 593 };
 594
 595 struct ieee80211_master_priv {
 596         struct ieee80211_local *local;
 597 };
 598
 599 struct ieee80211_local {
 600         /* embed the driver visible part.
 601          * don't cast (use the static inlines below), but we keep
 602          * it first anyway so they become a no-op */
 603         struct ieee80211_hw hw;
 604
 605         const struct ieee80211_ops *ops;
 606
 607         /* AC queue corresponding to each AMPDU queue */
 608         s8 ampdu_ac_queue[IEEE80211_MAX_AMPDU_QUEUES];
 609         unsigned int amdpu_ac_stop_refcnt[IEEE80211_MAX_AMPDU_QUEUES];
 610
 611         unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES +
 612                                          IEEE80211_MAX_AMPDU_QUEUES];
 613         /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
 614         spinlock_t queue_stop_reason_lock;
 615
 616         struct net_device *mdev; /* wmaster# - "master" 802.11 device */
 617         int open_count;
 618         int monitors, cooked_mntrs;
 619         /* number of interfaces with corresponding FIF_ flags */
 620         int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss;
 621         unsigned int filter_flags; /* FIF_* */
 622         struct iw_statistics wstats;
 623         bool tim_in_locked_section; /* see ieee80211_beacon_get() */
 624         int tx_headroom; /* required headroom for hardware/radiotap */
 625
 626         /* Tasklet and skb queue to process calls from IRQ mode. All frames
 627          * added to skb_queue will be processed, but frames in
 628          * skb_queue_unreliable may be dropped if the total length of these
 629          * queues increases over the limit. */
 630 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
 631         struct tasklet_struct tasklet;
 632         struct sk_buff_head skb_queue;
 633         struct sk_buff_head skb_queue_unreliable;
 634
 635         /* Station data */
 636         /*
 637          * The lock only protects the list, hash, timer and counter
 638          * against manipulation, reads are done in RCU. Additionally,
 639          * the lock protects each BSS's TIM bitmap.
 640          */
 641         spinlock_t sta_lock;
 642         unsigned long num_sta;
 643         struct list_head sta_list;
 644         struct list_head sta_flush_list;
 645         struct work_struct sta_flush_work;
 646         struct sta_info *sta_hash[STA_HASH_SIZE];
 647         struct timer_list sta_cleanup;
 648
 649         unsigned long queues_pending[BITS_TO_LONGS(IEEE80211_MAX_QUEUES)];
 650         unsigned long queues_pending_run[BITS_TO_LONGS(IEEE80211_MAX_QUEUES)];
 651         struct ieee80211_tx_stored_packet pending_packet[IEEE80211_MAX_QUEUES];
 652         struct tasklet_struct tx_pending_tasklet;
 653
 654         /* number of interfaces with corresponding IFF_ flags */
 655         atomic_t iff_allmultis, iff_promiscs;
 656
 657         struct rate_control_ref *rate_ctrl;
 658
 659         int rts_threshold;
 660         int fragmentation_threshold;
 661
 662         struct crypto_blkcipher *wep_tx_tfm;
 663         struct crypto_blkcipher *wep_rx_tfm;
 664         u32 wep_iv;
 665
 666         /* see iface.c */
 667         struct list_head interfaces;
 668         struct mutex iflist_mtx;
 669
 670         /*
 671          * Key lock, protects sdata's key_list and sta_info's
 672          * key pointers (write access, they're RCU.)
 673          */
 674         spinlock_t key_lock;
 675
 676
 677         /* Scanning and BSS list */
 678         bool sw_scanning, hw_scanning;
 679         struct cfg80211_ssid scan_ssid;
 680         struct cfg80211_scan_request int_scan_req;
 681         struct cfg80211_scan_request *scan_req;
 682         struct ieee80211_channel *scan_channel;
 683         int scan_channel_idx;
 684
 685         enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
 686         unsigned long last_scan_completed;
 687         struct delayed_work scan_work;
 688         struct ieee80211_sub_if_data *scan_sdata;
 689         enum nl80211_channel_type oper_channel_type;
 690         struct ieee80211_channel *oper_channel, *csa_channel;
 691
 692         /* SNMP counters */
 693         /* dot11CountersTable */
 694         u32 dot11TransmittedFragmentCount;
 695         u32 dot11MulticastTransmittedFrameCount;
 696         u32 dot11FailedCount;
 697         u32 dot11RetryCount;
 698         u32 dot11MultipleRetryCount;
 699         u32 dot11FrameDuplicateCount;
 700         u32 dot11ReceivedFragmentCount;
 701         u32 dot11MulticastReceivedFrameCount;
 702         u32 dot11TransmittedFrameCount;
 703
 704 #ifdef CONFIG_MAC80211_LEDS
 705         int tx_led_counter, rx_led_counter;
 706         struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
 707         char tx_led_name[32], rx_led_name[32],
 708              assoc_led_name[32], radio_led_name[32];
 709 #endif
 710
 711 #ifdef CONFIG_MAC80211_DEBUGFS
 712         struct work_struct sta_debugfs_add;
 713 #endif
 714
 715 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
 716         /* TX/RX handler statistics */
 717         unsigned int tx_handlers_drop;
 718         unsigned int tx_handlers_queued;
 719         unsigned int tx_handlers_drop_unencrypted;
 720         unsigned int tx_handlers_drop_fragment;
 721         unsigned int tx_handlers_drop_wep;
 722         unsigned int tx_handlers_drop_not_assoc;
 723         unsigned int tx_handlers_drop_unauth_port;
 724         unsigned int rx_handlers_drop;
 725         unsigned int rx_handlers_queued;
 726         unsigned int rx_handlers_drop_nullfunc;
 727         unsigned int rx_handlers_drop_defrag;
 728         unsigned int rx_handlers_drop_short;
 729         unsigned int rx_handlers_drop_passive_scan;
 730         unsigned int tx_expand_skb_head;
 731         unsigned int tx_expand_skb_head_cloned;
 732         unsigned int rx_expand_skb_head;
 733         unsigned int rx_expand_skb_head2;
 734         unsigned int rx_handlers_fragments;
 735         unsigned int tx_status_drop;
 736 #define I802_DEBUG_INC(c) (c)++
 737 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
 738 #define I802_DEBUG_INC(c) do { } while (0)
 739 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
 740
 741
 742         int total_ps_buffered; /* total number of all buffered unicast and
 743                                 * multicast packets for power saving stations
 744                                 */
 745         int wifi_wme_noack_test;
 746         unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
 747
 748         bool powersave;
 749         bool pspolling;
 750         struct work_struct dynamic_ps_enable_work;
 751         struct work_struct dynamic_ps_disable_work;
 752         struct timer_list dynamic_ps_timer;
 753
 754         int user_power_level; /* in dBm */
 755         int power_constr_level; /* in dBm */
 756
 757 #ifdef CONFIG_MAC80211_DEBUGFS
 758         struct local_debugfsdentries {
 759                 struct dentry *rcdir;
 760                 struct dentry *rcname;
 761                 struct dentry *frequency;
 762                 struct dentry *rts_threshold;
 763                 struct dentry *fragmentation_threshold;
 764                 struct dentry *short_retry_limit;
 765                 struct dentry *long_retry_limit;
 766                 struct dentry *total_ps_buffered;
 767                 struct dentry *wep_iv;
 768                 struct dentry *tsf;
 769                 struct dentry *reset;
 770                 struct dentry *statistics;
 771                 struct local_debugfsdentries_statsdentries {
 772                         struct dentry *transmitted_fragment_count;
 773                         struct dentry *multicast_transmitted_frame_count;
 774                         struct dentry *failed_count;
 775                         struct dentry *retry_count;
 776                         struct dentry *multiple_retry_count;
 777                         struct dentry *frame_duplicate_count;
 778                         struct dentry *received_fragment_count;
 779                         struct dentry *multicast_received_frame_count;
 780                         struct dentry *transmitted_frame_count;
 781                         struct dentry *wep_undecryptable_count;
 782                         struct dentry *num_scans;
 783 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
 784                         struct dentry *tx_handlers_drop;
 785                         struct dentry *tx_handlers_queued;
 786                         struct dentry *tx_handlers_drop_unencrypted;
 787                         struct dentry *tx_handlers_drop_fragment;
 788                         struct dentry *tx_handlers_drop_wep;
 789                         struct dentry *tx_handlers_drop_not_assoc;
 790                         struct dentry *tx_handlers_drop_unauth_port;
 791                         struct dentry *rx_handlers_drop;
 792                         struct dentry *rx_handlers_queued;
 793                         struct dentry *rx_handlers_drop_nullfunc;
 794                         struct dentry *rx_handlers_drop_defrag;
 795                         struct dentry *rx_handlers_drop_short;
 796                         struct dentry *rx_handlers_drop_passive_scan;
 797                         struct dentry *tx_expand_skb_head;
 798                         struct dentry *tx_expand_skb_head_cloned;
 799                         struct dentry *rx_expand_skb_head;
 800                         struct dentry *rx_expand_skb_head2;
 801                         struct dentry *rx_handlers_fragments;
 802                         struct dentry *tx_status_drop;
 803 #endif
 804                         struct dentry *dot11ACKFailureCount;
 805                         struct dentry *dot11RTSFailureCount;
 806                         struct dentry *dot11FCSErrorCount;
 807                         struct dentry *dot11RTSSuccessCount;
 808                 } stats;
 809                 struct dentry *stations;
 810                 struct dentry *keys;
 811         } debugfs;
 812 #endif
 813 };
 814
 815 static inline struct ieee80211_sub_if_data *
 816 IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
 817 {
 818         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 819
 820         BUG_ON(!local || local->mdev == dev);
 821
 822         return netdev_priv(dev);
 823 }
 824
 825 /* this struct represents 802.11n's RA/TID combination */
 826 struct ieee80211_ra_tid {
 827         u8 ra[ETH_ALEN];
 828         u16 tid;
 829 };
 830
 831 /* Parsed Information Elements */
 832 struct ieee802_11_elems {
 833         u8 *ie_start;
 834         size_t total_len;
 835
 836         /* pointers to IEs */
 837         u8 *ssid;
 838         u8 *supp_rates;
 839         u8 *fh_params;
 840         u8 *ds_params;
 841         u8 *cf_params;
 842         u8 *tim;
 843         u8 *ibss_params;
 844         u8 *challenge;
 845         u8 *wpa;
 846         u8 *rsn;
 847         u8 *erp_info;
 848         u8 *ext_supp_rates;
 849         u8 *wmm_info;
 850         u8 *wmm_param;
 851         struct ieee80211_ht_cap *ht_cap_elem;
 852         struct ieee80211_ht_info *ht_info_elem;
 853         u8 *mesh_config;
 854         u8 *mesh_id;
 855         u8 *peer_link;
 856         u8 *preq;
 857         u8 *prep;
 858         u8 *perr;
 859         u8 *ch_switch_elem;
 860         u8 *country_elem;
 861         u8 *pwr_constr_elem;
 862         u8 *quiet_elem;         /* first quite element */
 863         u8 *timeout_int;
 864
 865         /* length of them, respectively */
 866         u8 ssid_len;
 867         u8 supp_rates_len;
 868         u8 fh_params_len;
 869         u8 ds_params_len;
 870         u8 cf_params_len;
 871         u8 tim_len;
 872         u8 ibss_params_len;
 873         u8 challenge_len;
 874         u8 wpa_len;
 875         u8 rsn_len;
 876         u8 erp_info_len;
 877         u8 ext_supp_rates_len;
 878         u8 wmm_info_len;
 879         u8 wmm_param_len;
 880         u8 mesh_config_len;
 881         u8 mesh_id_len;
 882         u8 peer_link_len;
 883         u8 preq_len;
 884         u8 prep_len;
 885         u8 perr_len;
 886         u8 ch_switch_elem_len;
 887         u8 country_elem_len;
 888         u8 pwr_constr_elem_len;
 889         u8 quiet_elem_len;
 890         u8 num_of_quiet_elem;   /* can be more the one */
 891         u8 timeout_int_len;
 892 };
 893
 894 static inline struct ieee80211_local *hw_to_local(
 895         struct ieee80211_hw *hw)
 896 {
 897         return container_of(hw, struct ieee80211_local, hw);
 898 }
 899
 900 static inline struct ieee80211_hw *local_to_hw(
 901         struct ieee80211_local *local)
 902 {
 903         return &local->hw;
 904 }
 905
 906
 907 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
 908 {
 909         return compare_ether_addr(raddr, addr) == 0 ||
 910                is_broadcast_ether_addr(raddr);
 911 }
 912
 913
 914 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
 915 int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed);
 916 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
 917 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
 918                                       u32 changed);
 919 void ieee80211_configure_filter(struct ieee80211_local *local);
 920 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
 921
 922 /* wireless extensions */
 923 extern const struct iw_handler_def ieee80211_iw_handler_def;
 924
 925 /* STA code */
 926 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
 927 ieee80211_rx_result ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata,
 928                                           struct sk_buff *skb,
 929                                           struct ieee80211_rx_status *rx_status);
 930 int ieee80211_sta_commit(struct ieee80211_sub_if_data *sdata);
 931 int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len);
 932 int ieee80211_sta_get_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t *len);
 933 int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid);
 934 void ieee80211_sta_req_auth(struct ieee80211_sub_if_data *sdata);
 935 int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data *sdata, u16 reason);
 936 int ieee80211_sta_disassociate(struct ieee80211_sub_if_data *sdata, u16 reason);
 937 void ieee80211_send_pspoll(struct ieee80211_local *local,
 938                            struct ieee80211_sub_if_data *sdata);
 939
 940 /* IBSS code */
 941 int ieee80211_ibss_commit(struct ieee80211_sub_if_data *sdata);
 942 int ieee80211_ibss_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len);
 943 int ieee80211_ibss_get_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t *len);
 944 int ieee80211_ibss_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid);
 945 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
 946 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
 947 ieee80211_rx_result
 948 ieee80211_ibss_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
 949                        struct ieee80211_rx_status *rx_status);
 950 struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
 951                                         u8 *bssid, u8 *addr, u32 supp_rates);
 952
 953 /* scan/BSS handling */
 954 void ieee80211_scan_work(struct work_struct *work);
 955 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
 956                            struct cfg80211_scan_request *req);
 957 int ieee80211_scan_results(struct ieee80211_local *local,
 958                            struct iw_request_info *info,
 959                            char *buf, size_t len);
 960 ieee80211_rx_result
 961 ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata,
 962                   struct sk_buff *skb,
 963                   struct ieee80211_rx_status *rx_status);
 964 int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata,
 965                                const char *ie, size_t len);
 966
 967 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
 968 void ieee80211_scan_failed(struct ieee80211_local *local);
 969 int ieee80211_start_scan(struct ieee80211_sub_if_data *scan_sdata,
 970                          struct cfg80211_scan_request *req);
 971 struct ieee80211_bss *
 972 ieee80211_bss_info_update(struct ieee80211_local *local,
 973                           struct ieee80211_rx_status *rx_status,
 974                           struct ieee80211_mgmt *mgmt,
 975                           size_t len,
 976                           struct ieee802_11_elems *elems,
 977                           struct ieee80211_channel *channel,
 978                           bool beacon);
 979 struct ieee80211_bss *
 980 ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq,
 981                      u8 *ssid, u8 ssid_len);
 982 void ieee80211_rx_bss_put(struct ieee80211_local *local,
 983                           struct ieee80211_bss *bss);
 984 void ieee80211_rx_bss_remove(struct ieee80211_sub_if_data *sdata, u8 *bssid,
 985                              int freq, u8 *ssid, u8 ssid_len);
 986
 987 /* interface handling */
 988 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
 989                      struct net_device **new_dev, enum nl80211_iftype type,
 990                      struct vif_params *params);
 991 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
 992                              enum nl80211_iftype type);
 993 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
 994 void ieee80211_remove_interfaces(struct ieee80211_local *local);
 995
 996 /* tx handling */
 997 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
 998 void ieee80211_tx_pending(unsigned long data);
 999 int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
1000 int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
1001 int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
1002
1003 /* HT */
1004 void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band *sband,
1005                                        struct ieee80211_ht_cap *ht_cap_ie,
1006                                        struct ieee80211_sta_ht_cap *ht_cap);
1007 u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
1008                         struct ieee80211_ht_info *hti,
1009                         u16 ap_ht_cap_flags);
1010 void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn);
1011 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1012                           const u8 *da, u16 tid,
1013                           u16 initiator, u16 reason_code);
1014
1015 void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *da,
1016                                 u16 tid, u16 initiator, u16 reason);
1017 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1018                                     u16 initiator, u16 reason);
1019 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta);
1020 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1021                              struct sta_info *sta,
1022                              struct ieee80211_mgmt *mgmt, size_t len);
1023 void ieee80211_process_addba_resp(struct ieee80211_local *local,
1024                                   struct sta_info *sta,
1025                                   struct ieee80211_mgmt *mgmt,
1026                                   size_t len);
1027 void ieee80211_process_addba_request(struct ieee80211_local *local,
1028                                      struct sta_info *sta,
1029                                      struct ieee80211_mgmt *mgmt,
1030                                      size_t len);
1031
1032 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1033                                    enum ieee80211_back_parties initiator);
1034
1035 /* Spectrum management */
1036 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1037                                        struct ieee80211_mgmt *mgmt,
1038                                        size_t len);
1039 void ieee80211_chswitch_timer(unsigned long data);
1040 void ieee80211_chswitch_work(struct work_struct *work);
1041 void ieee80211_process_chanswitch(struct ieee80211_sub_if_data *sdata,
1042                                   struct ieee80211_channel_sw_ie *sw_elem,
1043                                   struct ieee80211_bss *bss);
1044 void ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata,
1045                                  u16 capab_info, u8 *pwr_constr_elem,
1046                                  u8 pwr_constr_elem_len);
1047
1048 /* Suspend/resume */
1049 #ifdef CONFIG_PM
1050 int __ieee80211_suspend(struct ieee80211_hw *hw);
1051 int __ieee80211_resume(struct ieee80211_hw *hw);
1052 #else
1053 static inline int __ieee80211_suspend(struct ieee80211_hw *hw)
1054 {
1055         return 0;
1056 }
1057 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1058 {
1059         return 0;
1060 }
1061 #endif
1062
1063 /* utility functions/constants */
1064 extern void *mac80211_wiphy_privid; /* for wiphy privid */
1065 extern const unsigned char rfc1042_header[6];
1066 extern const unsigned char bridge_tunnel_header[6];
1067 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
1068                         enum nl80211_iftype type);
1069 int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
1070                              int rate, int erp, int short_preamble);
1071 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
1072                                      struct ieee80211_hdr *hdr);
1073 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata);
1074 void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
1075                       int encrypt);
1076 void ieee802_11_parse_elems(u8 *start, size_t len,
1077                             struct ieee802_11_elems *elems);
1078 int ieee80211_set_freq(struct ieee80211_sub_if_data *sdata, int freq);
1079 u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
1080                               enum ieee80211_band band);
1081
1082 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1083 void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1084 void ieee80211_dynamic_ps_timer(unsigned long data);
1085 void ieee80211_send_nullfunc(struct ieee80211_local *local,
1086                              struct ieee80211_sub_if_data *sdata,
1087                              int powersave);
1088 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1089                              struct ieee80211_hdr *hdr);
1090 void ieee80211_beacon_loss_work(struct work_struct *work);
1091
1092 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
1093                                      enum queue_stop_reason reason);
1094 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
1095                                      enum queue_stop_reason reason);
1096 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
1097                                     enum queue_stop_reason reason);
1098 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
1099                                     enum queue_stop_reason reason);
1100
1101 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
1102                          u16 transaction, u16 auth_alg,
1103                          u8 *extra, size_t extra_len,
1104                          const u8 *bssid, int encrypt);
1105 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
1106                               u8 *ssid, size_t ssid_len,
1107                               u8 *ie, size_t ie_len);
1108
1109 void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
1110                                   const size_t supp_rates_len,
1111                                   const u8 *supp_rates);
1112 u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
1113                             struct ieee802_11_elems *elems,
1114                             enum ieee80211_band band);
1115
1116 #ifdef CONFIG_MAC80211_NOINLINE
1117 #define debug_noinline noinline
1118 #else
1119 #define debug_noinline
1120 #endif
1121
1122 #endif /* IEEE80211_I_H */