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_file_path - Path of debug file or %NULL to use stdout
 162          */
 163         const char *wpa_debug_file_path;
 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 #ifdef ANDROID
 346         int scan_interval;  /* time between scans when no APs available */
 347 #endif
 348 };
 349
 350
 351 /* wpa_supplicant.c */
 352 void wpa_supplicant_cancel_scan(struct wpa_supplicant *wpa_s);
 353
 354 int wpa_supplicant_reload_configuration(struct wpa_supplicant *wpa_s);
 355
 356 const char * wpa_supplicant_state_txt(int state);
 357 int wpa_supplicant_driver_init(struct wpa_supplicant *wpa_s,
 358                                int wait_for_interface);
 359 struct wpa_blacklist * wpa_blacklist_get(struct wpa_supplicant *wpa_s,
 360                                          const u8 *bssid);
 361 int wpa_blacklist_add(struct wpa_supplicant *wpa_s, const u8 *bssid);
 362 void wpa_blacklist_clear(struct wpa_supplicant *wpa_s);
 363 int wpa_supplicant_set_suites(struct wpa_supplicant *wpa_s,
 364                               struct wpa_scan_result *bss,
 365                               struct wpa_ssid *ssid,
 366                               u8 *wpa_ie, size_t *wpa_ie_len);
 367 void wpa_supplicant_associate(struct wpa_supplicant *wpa_s,
 368                               struct wpa_scan_result *bss,
 369                               struct wpa_ssid *ssid);
 370 void wpa_supplicant_set_non_wpa_policy(struct wpa_supplicant *wpa_s,
 371                                        struct wpa_ssid *ssid);
 372 void wpa_supplicant_initiate_eapol(struct wpa_supplicant *wpa_s);
 373 int wpa_supplicant_get_scan_results(struct wpa_supplicant *wpa_s);
 374 void wpa_clear_keys(struct wpa_supplicant *wpa_s, const u8 *addr);
 375 void wpa_supplicant_req_auth_timeout(struct wpa_supplicant *wpa_s,
 376                                      int sec, int usec);
 377 void wpa_supplicant_set_state(struct wpa_supplicant *wpa_s, wpa_states state);
 378 struct wpa_ssid * wpa_supplicant_get_ssid(struct wpa_supplicant *wpa_s);
 379 void wpa_supplicant_cancel_auth_timeout(struct wpa_supplicant *wpa_s);
 380 void wpa_supplicant_deauthenticate(struct wpa_supplicant *wpa_s,
 381                                    int reason_code);
 382 void wpa_supplicant_disassociate(struct wpa_supplicant *wpa_s,
 383                                  int reason_code);
 384 void wpa_supplicant_req_scan(struct wpa_supplicant *wpa_s, int sec, int usec);
 385
 386 void wpa_show_license(void);
 387
 388 struct wpa_supplicant * wpa_supplicant_add_iface(struct wpa_global *global,
 389                                                  struct wpa_interface *iface);
 390 int wpa_supplicant_remove_iface(struct wpa_global *global,
 391                                 struct wpa_supplicant *wpa_s);
 392 struct wpa_supplicant * wpa_supplicant_get_iface(struct wpa_global *global,
 393                                                  const char *ifname);
 394 struct wpa_global * wpa_supplicant_init(struct wpa_params *params);
 395 int wpa_supplicant_run(struct wpa_global *global);
 396 void wpa_supplicant_deinit(struct wpa_global *global);
 397
 398 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
 399                               struct wpa_ssid *ssid);
 400
 401 /* events.c */
 402 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s);
 403
 404 /* driver_ops */
 405 static inline void * wpa_drv_init(struct wpa_supplicant *wpa_s,
 406                                   const char *ifname)
 407 {
 408         if (wpa_s->driver->init) {
 409                 return wpa_s->driver->init(wpa_s, ifname);
 410         }
 411         return NULL;
 412 }
 413
 414 static inline void wpa_drv_deinit(struct wpa_supplicant *wpa_s)
 415 {
 416         if (wpa_s->driver->deinit)
 417                 wpa_s->driver->deinit(wpa_s->drv_priv);
 418 }
 419
 420 static inline int wpa_drv_set_param(struct wpa_supplicant *wpa_s,
 421                                     const char *param)
 422 {
 423         if (wpa_s->driver->set_param)
 424                 return wpa_s->driver->set_param(wpa_s->drv_priv, param);
 425         return 0;
 426 }
 427
 428 static inline int wpa_drv_set_drop_unencrypted(struct wpa_supplicant *wpa_s,
 429                                                int enabled)
 430 {
 431         if (wpa_s->driver->set_drop_unencrypted) {
 432                 return wpa_s->driver->set_drop_unencrypted(wpa_s->drv_priv,
 433                                                            enabled);
 434         }
 435         return -1;
 436 }
 437
 438 static inline int wpa_drv_set_countermeasures(struct wpa_supplicant *wpa_s,
 439                                               int enabled)
 440 {
 441         if (wpa_s->driver->set_countermeasures) {
 442                 return wpa_s->driver->set_countermeasures(wpa_s->drv_priv,
 443                                                           enabled);
 444         }
 445         return -1;
 446 }
 447
 448 static inline int wpa_drv_set_auth_alg(struct wpa_supplicant *wpa_s,
 449                                        int auth_alg)
 450 {
 451         if (wpa_s->driver->set_auth_alg) {
 452                 return wpa_s->driver->set_auth_alg(wpa_s->drv_priv,
 453                                                    auth_alg);
 454         }
 455         return -1;
 456 }
 457
 458 static inline int wpa_drv_set_wpa(struct wpa_supplicant *wpa_s, int enabled)
 459 {
 460         if (wpa_s->driver->set_wpa) {
 461                 return wpa_s->driver->set_wpa(wpa_s->drv_priv, enabled);
 462         }
 463         return 0;
 464 }
 465
 466 static inline int wpa_drv_associate(struct wpa_supplicant *wpa_s,
 467                                     struct wpa_driver_associate_params *params)
 468 {
 469         if (wpa_s->driver->associate) {
 470                 return wpa_s->driver->associate(wpa_s->drv_priv, params);
 471         }
 472         return -1;
 473 }
 474
 475 static inline int wpa_drv_scan(struct wpa_supplicant *wpa_s, const u8 *ssid,
 476                                size_t ssid_len)
 477 {
 478         if (wpa_s->driver->scan) {
 479                 return wpa_s->driver->scan(wpa_s->drv_priv, ssid, ssid_len);
 480         }
 481         return -1;
 482 }
 483
 484 static inline int wpa_drv_get_scan_results(struct wpa_supplicant *wpa_s,
 485                                            struct wpa_scan_result *results,
 486                                            size_t max_size)
 487 {
 488         if (wpa_s->driver->get_scan_results) {
 489                 return wpa_s->driver->get_scan_results(wpa_s->drv_priv,
 490                                                        results, max_size);
 491         }
 492         return -1;
 493 }
 494
 495 static inline int wpa_drv_get_bssid(struct wpa_supplicant *wpa_s, u8 *bssid)
 496 {
 497         if (wpa_s->driver->get_bssid) {
 498                 return wpa_s->driver->get_bssid(wpa_s->drv_priv, bssid);
 499         }
 500         return -1;
 501 }
 502
 503 static inline int wpa_drv_get_ssid(struct wpa_supplicant *wpa_s, u8 *ssid)
 504 {
 505         if (wpa_s->driver->get_ssid) {
 506                 return wpa_s->driver->get_ssid(wpa_s->drv_priv, ssid);
 507         }
 508         return -1;
 509 }
 510
 511 static inline int wpa_drv_set_key(struct wpa_supplicant *wpa_s, wpa_alg alg,
 512                                    const u8 *addr, int key_idx, int set_tx,
 513                                    const u8 *seq, size_t seq_len,
 514                                    const u8 *key, size_t key_len)
 515 {
 516         if (wpa_s->driver->set_key) {
 517                 wpa_s->keys_cleared = 0;
 518                 return wpa_s->driver->set_key(wpa_s->drv_priv, alg, addr,
 519                                               key_idx, set_tx, seq, seq_len,
 520                                               key, key_len);
 521         }
 522         return -1;
 523 }
 524
 525 static inline int wpa_drv_deauthenticate(struct wpa_supplicant *wpa_s,
 526                                          const u8 *addr, int reason_code)
 527 {
 528         if (wpa_s->driver->deauthenticate) {
 529                 return wpa_s->driver->deauthenticate(wpa_s->drv_priv, addr,
 530                                                      reason_code);
 531         }
 532         return -1;
 533 }
 534
 535 static inline int wpa_drv_disassociate(struct wpa_supplicant *wpa_s,
 536                                        const u8 *addr, int reason_code)
 537 {
 538         if (wpa_s->driver->disassociate) {
 539                 return wpa_s->driver->disassociate(wpa_s->drv_priv, addr,
 540                                                    reason_code);
 541         }
 542         return -1;
 543 }
 544
 545 static inline int wpa_drv_add_pmkid(struct wpa_supplicant *wpa_s,
 546                                     const u8 *bssid, const u8 *pmkid)
 547 {
 548         if (wpa_s->driver->add_pmkid) {
 549                 return wpa_s->driver->add_pmkid(wpa_s->drv_priv, bssid, pmkid);
 550         }
 551         return -1;
 552 }
 553
 554 static inline int wpa_drv_remove_pmkid(struct wpa_supplicant *wpa_s,
 555                                        const u8 *bssid, const u8 *pmkid)
 556 {
 557         if (wpa_s->driver->remove_pmkid) {
 558                 return wpa_s->driver->remove_pmkid(wpa_s->drv_priv, bssid,
 559                                                    pmkid);
 560         }
 561         return -1;
 562 }
 563
 564 static inline int wpa_drv_flush_pmkid(struct wpa_supplicant *wpa_s)
 565 {
 566         if (wpa_s->driver->flush_pmkid) {
 567                 return wpa_s->driver->flush_pmkid(wpa_s->drv_priv);
 568         }
 569         return -1;
 570 }
 571
 572 static inline int wpa_drv_get_capa(struct wpa_supplicant *wpa_s,
 573                                    struct wpa_driver_capa *capa)
 574 {
 575         if (wpa_s->driver->get_capa) {
 576                 return wpa_s->driver->get_capa(wpa_s->drv_priv, capa);
 577         }
 578         return -1;
 579 }
 580
 581 static inline void wpa_drv_poll(struct wpa_supplicant *wpa_s)
 582 {
 583         if (wpa_s->driver->poll) {
 584                 wpa_s->driver->poll(wpa_s->drv_priv);
 585         }
 586 }
 587
 588 static inline const char * wpa_drv_get_ifname(struct wpa_supplicant *wpa_s)
 589 {
 590         if (wpa_s->driver->get_ifname) {
 591                 return wpa_s->driver->get_ifname(wpa_s->drv_priv);
 592         }
 593         return NULL;
 594 }
 595
 596 static inline const u8 * wpa_drv_get_mac_addr(struct wpa_supplicant *wpa_s)
 597 {
 598         if (wpa_s->driver->get_mac_addr) {
 599                 return wpa_s->driver->get_mac_addr(wpa_s->drv_priv);
 600         }
 601         return NULL;
 602 }
 603
 604 static inline int wpa_drv_send_eapol(struct wpa_supplicant *wpa_s,
 605                                      const u8 *dst, u16 proto,
 606                                      const u8 *data, size_t data_len)
 607 {
 608         if (wpa_s->driver->send_eapol)
 609                 return wpa_s->driver->send_eapol(wpa_s->drv_priv, dst, proto,
 610                                                  data, data_len);
 611         return -1;
 612 }
 613
 614 static inline int wpa_drv_set_operstate(struct wpa_supplicant *wpa_s,
 615                                         int state)
 616 {
 617         if (wpa_s->driver->set_operstate)
 618                 return wpa_s->driver->set_operstate(wpa_s->drv_priv, state);
 619         return 0;
 620 }
 621
 622 static inline int wpa_drv_mlme_setprotection(struct wpa_supplicant *wpa_s,
 623                                              const u8 *addr, int protect_type,
 624                                              int key_type)
 625 {
 626         if (wpa_s->driver->mlme_setprotection)
 627                 return wpa_s->driver->mlme_setprotection(wpa_s->drv_priv, addr,
 628                                                          protect_type,
 629                                                          key_type);
 630         return 0;
 631 }
 632
 633 static inline struct wpa_hw_modes *
 634 wpa_drv_get_hw_feature_data(struct wpa_supplicant *wpa_s, u16 *num_modes,
 635                             u16 *flags)
 636 {
 637         if (wpa_s->driver->get_hw_feature_data)
 638                 return wpa_s->driver->get_hw_feature_data(wpa_s->drv_priv,
 639                                                           num_modes, flags);
 640         return NULL;
 641 }
 642
 643 static inline int wpa_drv_set_channel(struct wpa_supplicant *wpa_s,
 644                                       wpa_hw_mode phymode, int chan,
 645                                       int freq)
 646 {
 647         if (wpa_s->driver->set_channel)
 648                 return wpa_s->driver->set_channel(wpa_s->drv_priv, phymode,
 649                                                   chan, freq);
 650         return -1;
 651 }
 652
 653 static inline int wpa_drv_set_ssid(struct wpa_supplicant *wpa_s,
 654                                    const u8 *ssid, size_t ssid_len)
 655 {
 656         if (wpa_s->driver->set_ssid) {
 657                 return wpa_s->driver->set_ssid(wpa_s->drv_priv, ssid,
 658                                                ssid_len);
 659         }
 660         return -1;
 661 }
 662
 663 static inline int wpa_drv_set_bssid(struct wpa_supplicant *wpa_s,
 664                                     const u8 *bssid)
 665 {
 666         if (wpa_s->driver->set_bssid) {
 667                 return wpa_s->driver->set_bssid(wpa_s->drv_priv, bssid);
 668         }
 669         return -1;
 670 }
 671
 672 static inline int wpa_drv_send_mlme(struct wpa_supplicant *wpa_s,
 673                                     const u8 *data, size_t data_len)
 674 {
 675         if (wpa_s->driver->send_mlme)
 676                 return wpa_s->driver->send_mlme(wpa_s->drv_priv,
 677                                                 data, data_len);
 678         return -1;
 679 }
 680
 681 static inline int wpa_drv_mlme_add_sta(struct wpa_supplicant *wpa_s,
 682                                        const u8 *addr, const u8 *supp_rates,
 683                                        size_t supp_rates_len)
 684 {
 685         if (wpa_s->driver->mlme_add_sta)
 686                 return wpa_s->driver->mlme_add_sta(wpa_s->drv_priv, addr,
 687                                                    supp_rates, supp_rates_len);
 688         return -1;
 689 }
 690
 691 static inline int wpa_drv_mlme_remove_sta(struct wpa_supplicant *wpa_s,
 692                                           const u8 *addr)
 693 {
 694         if (wpa_s->driver->mlme_remove_sta)
 695                 return wpa_s->driver->mlme_remove_sta(wpa_s->drv_priv, addr);
 696         return -1;
 697 }
 698
 699 static inline int wpa_drv_driver_cmd(struct wpa_supplicant *wpa_s,
 700                                           char *cmd, char *buf, size_t buf_len)
 701 {
 702         if (wpa_s->driver->driver_cmd)
 703                 return wpa_s->driver->driver_cmd(wpa_s->drv_priv, cmd, buf, buf_len);
 704         return -1;
 705 }
 706
 707 #endif /* WPA_SUPPLICANT_I_H */