contrib/wpa_supplicant-0.5.8/wpa_supplicant_i.h

   1 /*
   2  * wpa_supplicant - Internal definitions
   3  * Copyright (c) 2003-2006, Jouni Malinen <j@w1.fi>
   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  * Alternatively, this software may be distributed under the terms of BSD
  10  * license.
  11  *
  12  * See README and COPYING for more details.
  13  */
  14
  15 #ifndef WPA_SUPPLICANT_I_H
  16 #define WPA_SUPPLICANT_I_H
  17
  18 #include "driver.h"
  19
  20 struct wpa_blacklist {
  21         struct wpa_blacklist *next;
  22         u8 bssid[ETH_ALEN];
  23         int count;
  24 };
  25
  26
  27 struct wpa_scan_result;
  28 struct wpa_sm;
  29 struct wpa_supplicant;
  30
  31 /*
  32  * Forward declarations of private structures used within the ctrl_iface
  33  * backends. Other parts of wpa_supplicant do not have access to data stored in
  34  * these structures.
  35  */
  36 struct ctrl_iface_priv;
  37 struct ctrl_iface_global_priv;
  38 struct ctrl_iface_dbus_priv;
  39
  40 /**
  41  * struct wpa_interface - Parameters for wpa_supplicant_add_iface()
  42  */
  43 struct wpa_interface {
  44         /**
  45          * confname - Configuration name (file or profile) name
  46          *
  47          * This can also be %NULL when a configuration file is not used. In
  48          * that case, ctrl_interface must be set to allow the interface to be
  49          * configured.
  50          */
  51         const char *confname;
  52
  53         /**
  54          * ctrl_interface - Control interface parameter
  55          *
  56          * If a configuration file is not used, this variable can be used to
  57          * set the ctrl_interface parameter that would have otherwise been read
  58          * from the configuration file. If both confname and ctrl_interface are
  59          * set, ctrl_interface is used to override the value from configuration
  60          * file.
  61          */
  62         const char *ctrl_interface;
  63
  64         /**
  65          * driver - Driver interface name, or %NULL to use the default driver
  66          */
  67         const char *driver;
  68
  69         /**
  70          * driver_param - Driver interface parameters
  71          *
  72          * If a configuration file is not used, this variable can be used to
  73          * set the driver_param parameters that would have otherwise been read
  74          * from the configuration file. If both confname and driver_param are
  75          * set, driver_param is used to override the value from configuration
  76          * file.
  77          */
  78         const char *driver_param;
  79
  80         /**
  81          * ifname - Interface name
  82          */
  83         const char *ifname;
  84
  85         /**
  86          * bridge_ifname - Optional bridge interface name
  87          *
  88          * If the driver interface (ifname) is included in a Linux bridge
  89          * device, the bridge interface may need to be used for receiving EAPOL
  90          * frames. This can be enabled by setting this variable to enable
  91          * receiving of EAPOL frames from an additional interface.
  92          */
  93         const char *bridge_ifname;
  94 };
  95
  96 /**
  97  * struct wpa_params - Parameters for wpa_supplicant_init()
  98  */
  99 struct wpa_params {
 100         /**
 101          * daemonize - Run %wpa_supplicant in the background
 102          */
 103         int daemonize;
 104
 105         /**
 106          * wait_for_interface - Wait for the network interface to appear
 107          *
 108          * If set, %wpa_supplicant will wait until all the configured network
 109          * interfaces are available before starting processing. Please note
 110          * that in many cases, a better alternative would be to start
 111          * %wpa_supplicant without network interfaces and add the interfaces
 112          * dynamically whenever they become available.
 113          */
 114         int wait_for_interface;
 115
 116         /**
 117          * wait_for_monitor - Wait for a monitor program before starting
 118          */
 119         int wait_for_monitor;
 120
 121         /**
 122          * pid_file - Path to a PID (process ID) file
 123          *
 124          * If this and daemonize are set, process ID of the background process
 125          * will be written to the specified file.
 126          */
 127         char *pid_file;
 128
 129         /**
 130          * wpa_debug_level - Debugging verbosity level (e.g., MSG_INFO)
 131          */
 132         int wpa_debug_level;
 133
 134         /**
 135          * wpa_debug_show_keys - Whether keying material is included in debug
 136          *
 137          * This parameter can be used to allow keying material to be included
 138          * in debug messages. This is a security risk and this option should
 139          * not be enabled in normal configuration. If needed during
 140          * development or while troubleshooting, this option can provide more
 141          * details for figuring out what is happening.
 142          */
 143         int wpa_debug_show_keys;
 144
 145         /**
 146          * wpa_debug_timestamp - Whether to include timestamp in debug messages
 147          */
 148         int wpa_debug_timestamp;
 149
 150         /**
 151          * ctrl_interface - Global ctrl_iface path/parameter
 152          */
 153         char *ctrl_interface;
 154
 155         /**
 156          * dbus_ctrl_interface - Enable the DBus control interface
 157          */
 158         int dbus_ctrl_interface;
 159
 160         /**
 161          * wpa_debug_use_file - Write debug to a file (instead of stdout)
 162          */
 163         int wpa_debug_use_file;
 164 };
 165
 166 /**
 167  * struct wpa_global - Internal, global data for all %wpa_supplicant interfaces
 168  *
 169  * This structure is initialized by calling wpa_supplicant_init() when starting
 170  * %wpa_supplicant.
 171  */
 172 struct wpa_global {
 173         struct wpa_supplicant *ifaces;
 174         struct wpa_params params;
 175         struct ctrl_iface_global_priv *ctrl_iface;
 176         struct ctrl_iface_dbus_priv *dbus_ctrl_iface;
 177 };
 178
 179
 180 struct wpa_client_mlme {
 181 #ifdef CONFIG_CLIENT_MLME
 182         enum {
 183                 IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
 184                 IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED,
 185                 IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED
 186         } state;
 187         u8 prev_bssid[ETH_ALEN];
 188         u8 ssid[32];
 189         size_t ssid_len;
 190         u16 aid;
 191         u16 ap_capab, capab;
 192         u8 *extra_ie; /* to be added to the end of AssocReq */
 193         size_t extra_ie_len;
 194         wpa_key_mgmt key_mgmt;
 195
 196         /* The last AssocReq/Resp IEs */
 197         u8 *assocreq_ies, *assocresp_ies;
 198         size_t assocreq_ies_len, assocresp_ies_len;
 199
 200         int auth_tries, assoc_tries;
 201
 202         unsigned int ssid_set:1;
 203         unsigned int bssid_set:1;
 204         unsigned int prev_bssid_set:1;
 205         unsigned int authenticated:1;
 206         unsigned int associated:1;
 207         unsigned int probereq_poll:1;
 208         unsigned int use_protection:1;
 209         unsigned int create_ibss:1;
 210         unsigned int mixed_cell:1;
 211         unsigned int wmm_enabled:1;
 212
 213         struct os_time last_probe;
 214
 215 #define IEEE80211_AUTH_ALG_OPEN BIT(0)
 216 #define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
 217 #define IEEE80211_AUTH_ALG_LEAP BIT(2)
 218         unsigned int auth_algs; /* bitfield of allowed auth algs */
 219         int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
 220         int auth_transaction;
 221
 222         struct os_time ibss_join_req;
 223         u8 *probe_resp; /* ProbeResp template for IBSS */
 224         size_t probe_resp_len;
 225         u32 supp_rates_bits;
 226
 227         int wmm_last_param_set;
 228
 229         int sta_scanning;
 230         int scan_hw_mode_idx;
 231         int scan_channel_idx;
 232         enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
 233         struct os_time last_scan_completed;
 234         int scan_oper_channel;
 235         int scan_oper_freq;
 236         int scan_oper_phymode;
 237         u8 scan_ssid[32];
 238         size_t scan_ssid_len;
 239         int scan_skip_11b;
 240
 241         struct ieee80211_sta_bss *sta_bss_list;
 242 #define STA_HASH_SIZE 256
 243 #define STA_HASH(sta) (sta[5])
 244         struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE];
 245
 246         int cts_protect_erp_frames;
 247
 248         int phymode; /* current mode; WPA_MODE_IEEE80211A, .. */
 249         struct wpa_hw_modes *modes;
 250         size_t num_modes;
 251         unsigned int hw_modes; /* bitfield of allowed hardware modes;
 252                                 * (1 << MODE_*) */
 253         int num_curr_rates;
 254         struct wpa_rate_data *curr_rates;
 255         int freq; /* The current frequency in MHz */
 256         int channel; /* The current IEEE 802.11 channel number */
 257 #else /* CONFIG_CLIENT_MLME */
 258         int dummy; /* to keep MSVC happy */
 259 #endif /* CONFIG_CLIENT_MLME */
 260 };
 261
 262 /**
 263  * struct wpa_supplicant - Internal data for wpa_supplicant interface
 264  *
 265  * This structure contains the internal data for core wpa_supplicant code. This
 266  * should be only used directly from the core code. However, a pointer to this
 267  * data is used from other files as an arbitrary context pointer in calls to
 268  * core functions.
 269  */
 270 struct wpa_supplicant {
 271         struct wpa_global *global;
 272         struct wpa_supplicant *next;
 273         struct l2_packet_data *l2;
 274         struct l2_packet_data *l2_br;
 275         unsigned char own_addr[ETH_ALEN];
 276         char ifname[100];
 277 #ifdef CONFIG_CTRL_IFACE_DBUS
 278         char *dbus_path;
 279 #endif /* CONFIG_CTRL_IFACE_DBUS */
 280         char bridge_ifname[16];
 281
 282         char *confname;
 283         struct wpa_config *conf;
 284         int countermeasures;
 285         os_time_t last_michael_mic_error;
 286         u8 bssid[ETH_ALEN];
 287         u8 pending_bssid[ETH_ALEN]; /* If wpa_state == WPA_ASSOCIATING, this
 288                                      * field contains the targer BSSID. */
 289         int reassociate; /* reassociation requested */
 290         int disconnected; /* all connections disabled; i.e., do no reassociate
 291                            * before this has been cleared */
 292         struct wpa_ssid *current_ssid;
 293
 294         /* Selected configuration (based on Beacon/ProbeResp WPA IE) */
 295         int pairwise_cipher;
 296         int group_cipher;
 297         int key_mgmt;
 298         int mgmt_group_cipher;
 299
 300         void *drv_priv; /* private data used by driver_ops */
 301
 302         struct wpa_ssid *prev_scan_ssid; /* previously scanned SSID;
 303                                           * NULL = not yet initialized (start
 304                                           * with broadcast SSID)
 305                                           * BROADCAST_SSID_SCAN = broadcast
 306                                           * SSID was used in the previous scan
 307                                           */
 308 #define BROADCAST_SSID_SCAN ((struct wpa_ssid *) 1)
 309
 310         struct wpa_scan_result *scan_results;
 311         int num_scan_results;
 312
 313         struct wpa_driver_ops *driver;
 314         int interface_removed; /* whether the network interface has been
 315                                 * removed */
 316         struct wpa_sm *wpa;
 317         struct eapol_sm *eapol;
 318
 319         struct ctrl_iface_priv *ctrl_iface;
 320
 321         wpa_states wpa_state;
 322         int new_connection;
 323         int reassociated_connection;
 324
 325         int eapol_received; /* number of EAPOL packets received after the
 326                              * previous association event */
 327
 328         struct scard_data *scard;
 329
 330         unsigned char last_eapol_src[ETH_ALEN];
 331
 332         int keys_cleared;
 333
 334         struct wpa_blacklist *blacklist;
 335
 336         int scan_req; /* manual scan request; this forces a scan even if there
 337                        * are no enabled networks in the configuration */
 338         int scan_res_tried; /* whether ap_scan=1 mode has tried to fetch scan
 339                              * results without a new scan request; this is used
 340                              * to speed up the first association if the driver
 341                              * has already available scan results. */
 342
 343         struct wpa_client_mlme mlme;
 344         int use_client_mlme;
 345 };
 346
 347
 348 /* wpa_supplicant.c */
 349 void wpa_supplicant_cancel_scan(struct wpa_supplicant *wpa_s);
 350
 351 int wpa_supplicant_reload_configuration(struct wpa_supplicant *wpa_s);
 352
 353 const char * wpa_supplicant_state_txt(int state);
 354 int wpa_supplicant_driver_init(struct wpa_supplicant *wpa_s,
 355                                int wait_for_interface);
 356 struct wpa_blacklist * wpa_blacklist_get(struct wpa_supplicant *wpa_s,
 357                                          const u8 *bssid);
 358 int wpa_blacklist_add(struct wpa_supplicant *wpa_s, const u8 *bssid);
 359 void wpa_blacklist_clear(struct wpa_supplicant *wpa_s);
 360 int wpa_supplicant_set_suites(struct wpa_supplicant *wpa_s,
 361                               struct wpa_scan_result *bss,
 362                               struct wpa_ssid *ssid,
 363                               u8 *wpa_ie, size_t *wpa_ie_len);
 364 void wpa_supplicant_associate(struct wpa_supplicant *wpa_s,
 365                               struct wpa_scan_result *bss,
 366                               struct wpa_ssid *ssid);
 367 void wpa_supplicant_set_non_wpa_policy(struct wpa_supplicant *wpa_s,
 368                                        struct wpa_ssid *ssid);
 369 void wpa_supplicant_initiate_eapol(struct wpa_supplicant *wpa_s);
 370 int wpa_supplicant_get_scan_results(struct wpa_supplicant *wpa_s);
 371 void wpa_clear_keys(struct wpa_supplicant *wpa_s, const u8 *addr);
 372 void wpa_supplicant_req_auth_timeout(struct wpa_supplicant *wpa_s,
 373                                      int sec, int usec);
 374 void wpa_supplicant_set_state(struct wpa_supplicant *wpa_s, wpa_states state);
 375 struct wpa_ssid * wpa_supplicant_get_ssid(struct wpa_supplicant *wpa_s);
 376 void wpa_supplicant_cancel_auth_timeout(struct wpa_supplicant *wpa_s);
 377 void wpa_supplicant_deauthenticate(struct wpa_supplicant *wpa_s,
 378                                    int reason_code);
 379 void wpa_supplicant_disassociate(struct wpa_supplicant *wpa_s,
 380                                  int reason_code);
 381 void wpa_supplicant_req_scan(struct wpa_supplicant *wpa_s, int sec, int usec);
 382
 383 void wpa_show_license(void);
 384
 385 struct wpa_supplicant * wpa_supplicant_add_iface(struct wpa_global *global,
 386                                                  struct wpa_interface *iface);
 387 int wpa_supplicant_remove_iface(struct wpa_global *global,
 388                                 struct wpa_supplicant *wpa_s);
 389 struct wpa_supplicant * wpa_supplicant_get_iface(struct wpa_global *global,
 390                                                  const char *ifname);
 391 struct wpa_global * wpa_supplicant_init(struct wpa_params *params);
 392 int wpa_supplicant_run(struct wpa_global *global);
 393 void wpa_supplicant_deinit(struct wpa_global *global);
 394
 395 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
 396                               struct wpa_ssid *ssid);
 397
 398 /* events.c */
 399 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s);
 400
 401 /* driver_ops */
 402 static inline void * wpa_drv_init(struct wpa_supplicant *wpa_s,
 403                                   const char *ifname)
 404 {
 405         if (wpa_s->driver->init) {
 406                 return wpa_s->driver->init(wpa_s, ifname);
 407         }
 408         return NULL;
 409 }
 410
 411 static inline void wpa_drv_deinit(struct wpa_supplicant *wpa_s)
 412 {
 413         if (wpa_s->driver->deinit)
 414                 wpa_s->driver->deinit(wpa_s->drv_priv);
 415 }
 416
 417 static inline int wpa_drv_set_param(struct wpa_supplicant *wpa_s,
 418                                     const char *param)
 419 {
 420         if (wpa_s->driver->set_param)
 421                 return wpa_s->driver->set_param(wpa_s->drv_priv, param);
 422         return 0;
 423 }
 424
 425 static inline int wpa_drv_set_drop_unencrypted(struct wpa_supplicant *wpa_s,
 426                                                int enabled)
 427 {
 428         if (wpa_s->driver->set_drop_unencrypted) {
 429                 return wpa_s->driver->set_drop_unencrypted(wpa_s->drv_priv,
 430                                                            enabled);
 431         }
 432         return -1;
 433 }
 434
 435 static inline int wpa_drv_set_countermeasures(struct wpa_supplicant *wpa_s,
 436                                               int enabled)
 437 {
 438         if (wpa_s->driver->set_countermeasures) {
 439                 return wpa_s->driver->set_countermeasures(wpa_s->drv_priv,
 440                                                           enabled);
 441         }
 442         return -1;
 443 }
 444
 445 static inline int wpa_drv_set_auth_alg(struct wpa_supplicant *wpa_s,
 446                                        int auth_alg)
 447 {
 448         if (wpa_s->driver->set_auth_alg) {
 449                 return wpa_s->driver->set_auth_alg(wpa_s->drv_priv,
 450                                                    auth_alg);
 451         }
 452         return -1;
 453 }
 454
 455 static inline int wpa_drv_set_wpa(struct wpa_supplicant *wpa_s, int enabled)
 456 {
 457         if (wpa_s->driver->set_wpa) {
 458                 return wpa_s->driver->set_wpa(wpa_s->drv_priv, enabled);
 459         }
 460         return 0;
 461 }
 462
 463 static inline int wpa_drv_associate(struct wpa_supplicant *wpa_s,
 464                                     struct wpa_driver_associate_params *params)
 465 {
 466         if (wpa_s->driver->associate) {
 467                 return wpa_s->driver->associate(wpa_s->drv_priv, params);
 468         }
 469         return -1;
 470 }
 471
 472 static inline int wpa_drv_scan(struct wpa_supplicant *wpa_s, const u8 *ssid,
 473                                size_t ssid_len)
 474 {
 475         if (wpa_s->driver->scan) {
 476                 return wpa_s->driver->scan(wpa_s->drv_priv, ssid, ssid_len);
 477         }
 478         return -1;
 479 }
 480
 481 static inline int wpa_drv_get_scan_results(struct wpa_supplicant *wpa_s,
 482                                            struct wpa_scan_result *results,
 483                                            size_t max_size)
 484 {
 485         if (wpa_s->driver->get_scan_results) {
 486                 return wpa_s->driver->get_scan_results(wpa_s->drv_priv,
 487                                                        results, max_size);
 488         }
 489         return -1;
 490 }
 491
 492 static inline int wpa_drv_get_bssid(struct wpa_supplicant *wpa_s, u8 *bssid)
 493 {
 494         if (wpa_s->driver->get_bssid) {
 495                 return wpa_s->driver->get_bssid(wpa_s->drv_priv, bssid);
 496         }
 497         return -1;
 498 }
 499
 500 static inline int wpa_drv_get_ssid(struct wpa_supplicant *wpa_s, u8 *ssid)
 501 {
 502         if (wpa_s->driver->get_ssid) {
 503                 return wpa_s->driver->get_ssid(wpa_s->drv_priv, ssid);
 504         }
 505         return -1;
 506 }
 507
 508 static inline int wpa_drv_set_key(struct wpa_supplicant *wpa_s, wpa_alg alg,
 509                                    const u8 *addr, int key_idx, int set_tx,
 510                                    const u8 *seq, size_t seq_len,
 511                                    const u8 *key, size_t key_len)
 512 {
 513         if (wpa_s->driver->set_key) {
 514                 wpa_s->keys_cleared = 0;
 515                 return wpa_s->driver->set_key(wpa_s->drv_priv, alg, addr,
 516                                               key_idx, set_tx, seq, seq_len,
 517                                               key, key_len);
 518         }
 519         return -1;
 520 }
 521
 522 static inline int wpa_drv_deauthenticate(struct wpa_supplicant *wpa_s,
 523                                          const u8 *addr, int reason_code)
 524 {
 525         if (wpa_s->driver->deauthenticate) {
 526                 return wpa_s->driver->deauthenticate(wpa_s->drv_priv, addr,
 527                                                      reason_code);
 528         }
 529         return -1;
 530 }
 531
 532 static inline int wpa_drv_disassociate(struct wpa_supplicant *wpa_s,
 533                                        const u8 *addr, int reason_code)
 534 {
 535         if (wpa_s->driver->disassociate) {
 536                 return wpa_s->driver->disassociate(wpa_s->drv_priv, addr,
 537                                                    reason_code);
 538         }
 539         return -1;
 540 }
 541
 542 static inline int wpa_drv_add_pmkid(struct wpa_supplicant *wpa_s,
 543                                     const u8 *bssid, const u8 *pmkid)
 544 {
 545         if (wpa_s->driver->add_pmkid) {
 546                 return wpa_s->driver->add_pmkid(wpa_s->drv_priv, bssid, pmkid);
 547         }
 548         return -1;
 549 }
 550
 551 static inline int wpa_drv_remove_pmkid(struct wpa_supplicant *wpa_s,
 552                                        const u8 *bssid, const u8 *pmkid)
 553 {
 554         if (wpa_s->driver->remove_pmkid) {
 555                 return wpa_s->driver->remove_pmkid(wpa_s->drv_priv, bssid,
 556                                                    pmkid);
 557         }
 558         return -1;
 559 }
 560
 561 static inline int wpa_drv_flush_pmkid(struct wpa_supplicant *wpa_s)
 562 {
 563         if (wpa_s->driver->flush_pmkid) {
 564                 return wpa_s->driver->flush_pmkid(wpa_s->drv_priv);
 565         }
 566         return -1;
 567 }
 568
 569 static inline int wpa_drv_get_capa(struct wpa_supplicant *wpa_s,
 570                                    struct wpa_driver_capa *capa)
 571 {
 572         if (wpa_s->driver->get_capa) {
 573                 return wpa_s->driver->get_capa(wpa_s->drv_priv, capa);
 574         }
 575         return -1;
 576 }
 577
 578 static inline void wpa_drv_poll(struct wpa_supplicant *wpa_s)
 579 {
 580         if (wpa_s->driver->poll) {
 581                 wpa_s->driver->poll(wpa_s->drv_priv);
 582         }
 583 }
 584
 585 static inline const char * wpa_drv_get_ifname(struct wpa_supplicant *wpa_s)
 586 {
 587         if (wpa_s->driver->get_ifname) {
 588                 return wpa_s->driver->get_ifname(wpa_s->drv_priv);
 589         }
 590         return NULL;
 591 }
 592
 593 static inline const u8 * wpa_drv_get_mac_addr(struct wpa_supplicant *wpa_s)
 594 {
 595         if (wpa_s->driver->get_mac_addr) {
 596                 return wpa_s->driver->get_mac_addr(wpa_s->drv_priv);
 597         }
 598         return NULL;
 599 }
 600
 601 static inline int wpa_drv_send_eapol(struct wpa_supplicant *wpa_s,
 602                                      const u8 *dst, u16 proto,
 603                                      const u8 *data, size_t data_len)
 604 {
 605         if (wpa_s->driver->send_eapol)
 606                 return wpa_s->driver->send_eapol(wpa_s->drv_priv, dst, proto,
 607                                                  data, data_len);
 608         return -1;
 609 }
 610
 611 static inline int wpa_drv_set_operstate(struct wpa_supplicant *wpa_s,
 612                                         int state)
 613 {
 614         if (wpa_s->driver->set_operstate)
 615                 return wpa_s->driver->set_operstate(wpa_s->drv_priv, state);
 616         return 0;
 617 }
 618
 619 static inline int wpa_drv_mlme_setprotection(struct wpa_supplicant *wpa_s,
 620                                              const u8 *addr, int protect_type,
 621                                              int key_type)
 622 {
 623         if (wpa_s->driver->mlme_setprotection)
 624                 return wpa_s->driver->mlme_setprotection(wpa_s->drv_priv, addr,
 625                                                          protect_type,
 626                                                          key_type);
 627         return 0;
 628 }
 629
 630 static inline struct wpa_hw_modes *
 631 wpa_drv_get_hw_feature_data(struct wpa_supplicant *wpa_s, u16 *num_modes,
 632                             u16 *flags)
 633 {
 634         if (wpa_s->driver->get_hw_feature_data)
 635                 return wpa_s->driver->get_hw_feature_data(wpa_s->drv_priv,
 636                                                           num_modes, flags);
 637         return NULL;
 638 }
 639
 640 static inline int wpa_drv_set_channel(struct wpa_supplicant *wpa_s,
 641                                       wpa_hw_mode phymode, int chan,
 642                                       int freq)
 643 {
 644         if (wpa_s->driver->set_channel)
 645                 return wpa_s->driver->set_channel(wpa_s->drv_priv, phymode,
 646                                                   chan, freq);
 647         return -1;
 648 }
 649
 650 static inline int wpa_drv_set_ssid(struct wpa_supplicant *wpa_s,
 651                                    const u8 *ssid, size_t ssid_len)
 652 {
 653         if (wpa_s->driver->set_ssid) {
 654                 return wpa_s->driver->set_ssid(wpa_s->drv_priv, ssid,
 655                                                ssid_len);
 656         }
 657         return -1;
 658 }
 659
 660 static inline int wpa_drv_set_bssid(struct wpa_supplicant *wpa_s,
 661                                     const u8 *bssid)
 662 {
 663         if (wpa_s->driver->set_bssid) {
 664                 return wpa_s->driver->set_bssid(wpa_s->drv_priv, bssid);
 665         }
 666         return -1;
 667 }
 668
 669 static inline int wpa_drv_send_mlme(struct wpa_supplicant *wpa_s,
 670                                     const u8 *data, size_t data_len)
 671 {
 672         if (wpa_s->driver->send_mlme)
 673                 return wpa_s->driver->send_mlme(wpa_s->drv_priv,
 674                                                 data, data_len);
 675         return -1;
 676 }
 677
 678 static inline int wpa_drv_mlme_add_sta(struct wpa_supplicant *wpa_s,
 679                                        const u8 *addr, const u8 *supp_rates,
 680                                        size_t supp_rates_len)
 681 {
 682         if (wpa_s->driver->mlme_add_sta)
 683                 return wpa_s->driver->mlme_add_sta(wpa_s->drv_priv, addr,
 684                                                    supp_rates, supp_rates_len);
 685         return -1;
 686 }
 687
 688 static inline int wpa_drv_mlme_remove_sta(struct wpa_supplicant *wpa_s,
 689                                           const u8 *addr)
 690 {
 691         if (wpa_s->driver->mlme_remove_sta)
 692                 return wpa_s->driver->mlme_remove_sta(wpa_s->drv_priv, addr);
 693         return -1;
 694 }
 695
 696 #endif /* WPA_SUPPLICANT_I_H */