TNC: Fix a stray pointer that could cause segfault on error path
[wpasupplicant] / wpa_supplicant / wpa_supplicant_i.h
1 /*
2  * wpa_supplicant - Internal definitions
3  * Copyright (c) 2003-2007, 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 "drivers/driver.h"
19
20 extern const char *wpa_supplicant_version;
21 extern const char *wpa_supplicant_license;
22 #ifndef CONFIG_NO_STDOUT_DEBUG
23 extern const char *wpa_supplicant_full_license1;
24 extern const char *wpa_supplicant_full_license2;
25 extern const char *wpa_supplicant_full_license3;
26 extern const char *wpa_supplicant_full_license4;
27 extern const char *wpa_supplicant_full_license5;
28 #endif /* CONFIG_NO_STDOUT_DEBUG */
29
30 extern struct wpa_driver_ops *wpa_supplicant_drivers[];
31
32
33 struct wpa_scan_result;
34 struct wpa_sm;
35 struct wpa_supplicant;
36 struct ibss_rsn;
37
38 /*
39  * Forward declarations of private structures used within the ctrl_iface
40  * backends. Other parts of wpa_supplicant do not have access to data stored in
41  * these structures.
42  */
43 struct ctrl_iface_priv;
44 struct ctrl_iface_global_priv;
45 struct ctrl_iface_dbus_priv;
46
47 /**
48  * struct wpa_interface - Parameters for wpa_supplicant_add_iface()
49  */
50 struct wpa_interface {
51         /**
52          * confname - Configuration name (file or profile) name
53          *
54          * This can also be %NULL when a configuration file is not used. In
55          * that case, ctrl_interface must be set to allow the interface to be
56          * configured.
57          */
58         const char *confname;
59
60         /**
61          * ctrl_interface - Control interface parameter
62          *
63          * If a configuration file is not used, this variable can be used to
64          * set the ctrl_interface parameter that would have otherwise been read
65          * from the configuration file. If both confname and ctrl_interface are
66          * set, ctrl_interface is used to override the value from configuration
67          * file.
68          */
69         const char *ctrl_interface;
70
71         /**
72          * driver - Driver interface name, or %NULL to use the default driver
73          */
74         const char *driver;
75
76         /**
77          * driver_param - Driver interface parameters
78          *
79          * If a configuration file is not used, this variable can be used to
80          * set the driver_param parameters that would have otherwise been read
81          * from the configuration file. If both confname and driver_param are
82          * set, driver_param is used to override the value from configuration
83          * file.
84          */
85         const char *driver_param;
86
87         /**
88          * ifname - Interface name
89          */
90         const char *ifname;
91
92         /**
93          * bridge_ifname - Optional bridge interface name
94          *
95          * If the driver interface (ifname) is included in a Linux bridge
96          * device, the bridge interface may need to be used for receiving EAPOL
97          * frames. This can be enabled by setting this variable to enable
98          * receiving of EAPOL frames from an additional interface.
99          */
100         const char *bridge_ifname;
101 };
102
103 /**
104  * struct wpa_params - Parameters for wpa_supplicant_init()
105  */
106 struct wpa_params {
107         /**
108          * daemonize - Run %wpa_supplicant in the background
109          */
110         int daemonize;
111
112         /**
113          * wait_for_monitor - Wait for a monitor program before starting
114          */
115         int wait_for_monitor;
116
117         /**
118          * pid_file - Path to a PID (process ID) file
119          *
120          * If this and daemonize are set, process ID of the background process
121          * will be written to the specified file.
122          */
123         char *pid_file;
124
125         /**
126          * wpa_debug_level - Debugging verbosity level (e.g., MSG_INFO)
127          */
128         int wpa_debug_level;
129
130         /**
131          * wpa_debug_show_keys - Whether keying material is included in debug
132          *
133          * This parameter can be used to allow keying material to be included
134          * in debug messages. This is a security risk and this option should
135          * not be enabled in normal configuration. If needed during
136          * development or while troubleshooting, this option can provide more
137          * details for figuring out what is happening.
138          */
139         int wpa_debug_show_keys;
140
141         /**
142          * wpa_debug_timestamp - Whether to include timestamp in debug messages
143          */
144         int wpa_debug_timestamp;
145
146         /**
147          * ctrl_interface - Global ctrl_iface path/parameter
148          */
149         char *ctrl_interface;
150
151         /**
152          * dbus_ctrl_interface - Enable the DBus control interface
153          */
154         int dbus_ctrl_interface;
155
156         /**
157          * wpa_debug_file_path - Path of debug file or %NULL to use stdout
158          */
159         const char *wpa_debug_file_path;
160
161         /**
162          * wpa_debug_syslog - Enable log output through syslog
163          */
164         int wpa_debug_syslog;
165 };
166
167 /**
168  * struct wpa_global - Internal, global data for all %wpa_supplicant interfaces
169  *
170  * This structure is initialized by calling wpa_supplicant_init() when starting
171  * %wpa_supplicant.
172  */
173 struct wpa_global {
174         struct wpa_supplicant *ifaces;
175         struct wpa_params params;
176         struct ctrl_iface_global_priv *ctrl_iface;
177         struct ctrl_iface_dbus_priv *dbus_ctrl_iface;
178         void **drv_priv;
179         size_t drv_count;
180 };
181
182
183 struct wpa_client_mlme {
184 #ifdef CONFIG_CLIENT_MLME
185         enum {
186                 IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
187                 IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED,
188                 IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED
189         } state;
190         u8 prev_bssid[ETH_ALEN];
191         u8 ssid[32];
192         size_t ssid_len;
193         u16 aid;
194         u16 ap_capab, capab;
195         u8 *extra_ie; /* to be added to the end of AssocReq */
196         size_t extra_ie_len;
197         u8 *extra_probe_ie; /* to be added to the end of ProbeReq */
198         size_t extra_probe_ie_len;
199         wpa_key_mgmt key_mgmt;
200
201         /* The last AssocReq/Resp IEs */
202         u8 *assocreq_ies, *assocresp_ies;
203         size_t assocreq_ies_len, assocresp_ies_len;
204
205         int auth_tries, assoc_tries;
206
207         unsigned int ssid_set:1;
208         unsigned int bssid_set:1;
209         unsigned int prev_bssid_set:1;
210         unsigned int authenticated:1;
211         unsigned int associated:1;
212         unsigned int probereq_poll:1;
213         unsigned int use_protection:1;
214         unsigned int create_ibss:1;
215         unsigned int mixed_cell:1;
216         unsigned int wmm_enabled:1;
217
218         struct os_time last_probe;
219
220 #define IEEE80211_AUTH_ALG_OPEN BIT(0)
221 #define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
222 #define IEEE80211_AUTH_ALG_LEAP BIT(2)
223         unsigned int auth_algs; /* bitfield of allowed auth algs */
224         int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
225         int auth_transaction;
226
227         struct os_time ibss_join_req;
228         u8 *probe_resp; /* ProbeResp template for IBSS */
229         size_t probe_resp_len;
230         u32 supp_rates_bits;
231
232         int wmm_last_param_set;
233
234         int sta_scanning;
235         int scan_hw_mode_idx;
236         int scan_channel_idx;
237         enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
238         struct os_time last_scan_completed;
239         int scan_oper_channel;
240         int scan_oper_freq;
241         int scan_oper_phymode;
242         u8 scan_ssid[32];
243         size_t scan_ssid_len;
244         int scan_skip_11b;
245
246         struct ieee80211_sta_bss *sta_bss_list;
247 #define STA_HASH_SIZE 256
248 #define STA_HASH(sta) (sta[5])
249         struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE];
250
251         int cts_protect_erp_frames;
252
253         int phymode; /* current mode; WPA_MODE_IEEE80211A, .. */
254         struct wpa_hw_modes *modes;
255         size_t num_modes;
256         unsigned int hw_modes; /* bitfield of allowed hardware modes;
257                                 * (1 << MODE_*) */
258         int num_curr_rates;
259         struct wpa_rate_data *curr_rates;
260         int freq; /* The current frequency in MHz */
261         int channel; /* The current IEEE 802.11 channel number */
262
263 #ifdef CONFIG_IEEE80211R
264         u8 current_md[6];
265         u8 *ft_ies;
266         size_t ft_ies_len;
267 #endif /* CONFIG_IEEE80211R */
268
269 #else /* CONFIG_CLIENT_MLME */
270         int dummy; /* to keep MSVC happy */
271 #endif /* CONFIG_CLIENT_MLME */
272 };
273
274 /**
275  * struct wpa_supplicant - Internal data for wpa_supplicant interface
276  *
277  * This structure contains the internal data for core wpa_supplicant code. This
278  * should be only used directly from the core code. However, a pointer to this
279  * data is used from other files as an arbitrary context pointer in calls to
280  * core functions.
281  */
282 struct wpa_supplicant {
283         struct wpa_global *global;
284         struct wpa_supplicant *next;
285         struct l2_packet_data *l2;
286         struct l2_packet_data *l2_br;
287         unsigned char own_addr[ETH_ALEN];
288         char ifname[100];
289 #ifdef CONFIG_CTRL_IFACE_DBUS
290         char *dbus_path;
291 #endif /* CONFIG_CTRL_IFACE_DBUS */
292         char bridge_ifname[16];
293
294         char *confname;
295         struct wpa_config *conf;
296         int countermeasures;
297         os_time_t last_michael_mic_error;
298         u8 bssid[ETH_ALEN];
299         u8 pending_bssid[ETH_ALEN]; /* If wpa_state == WPA_ASSOCIATING, this
300                                      * field contains the targer BSSID. */
301         int reassociate; /* reassociation requested */
302         int disconnected; /* all connections disabled; i.e., do no reassociate
303                            * before this has been cleared */
304         struct wpa_ssid *current_ssid;
305         int ap_ies_from_associnfo;
306
307         /* Selected configuration (based on Beacon/ProbeResp WPA IE) */
308         int pairwise_cipher;
309         int group_cipher;
310         int key_mgmt;
311         int mgmt_group_cipher;
312
313         void *drv_priv; /* private data used by driver_ops */
314         int drv_wired;
315
316         struct wpa_ssid *prev_scan_ssid; /* previously scanned SSID;
317                                           * NULL = not yet initialized (start
318                                           * with wildcard SSID)
319                                           * WILDCARD_SSID_SCAN = wildcard
320                                           * SSID was used in the previous scan
321                                           */
322 #define WILDCARD_SSID_SCAN ((struct wpa_ssid *) 1)
323
324         struct wpa_scan_results *scan_res;
325
326         struct wpa_driver_ops *driver;
327         int interface_removed; /* whether the network interface has been
328                                 * removed */
329         struct wpa_sm *wpa;
330         struct eapol_sm *eapol;
331
332         struct ctrl_iface_priv *ctrl_iface;
333
334         wpa_states wpa_state;
335         int new_connection;
336         int reassociated_connection;
337
338         int eapol_received; /* number of EAPOL packets received after the
339                              * previous association event */
340
341         struct scard_data *scard;
342
343         unsigned char last_eapol_src[ETH_ALEN];
344
345         int keys_cleared;
346
347         struct wpa_blacklist *blacklist;
348
349         int scan_req; /* manual scan request; this forces a scan even if there
350                        * are no enabled networks in the configuration */
351         int scan_res_tried; /* whether ap_scan=1 mode has tried to fetch scan
352                              * results without a new scan request; this is used
353                              * to speed up the first association if the driver
354                              * has already available scan results. */
355         int scan_runs; /* number of scan runs since WPS was started */
356
357         struct wpa_client_mlme mlme;
358         int use_client_mlme;
359         int driver_4way_handshake;
360         int max_scan_ssids;
361
362         int pending_mic_error_report;
363         int pending_mic_error_pairwise;
364         int mic_errors_seen; /* Michael MIC errors with the current PTK */
365
366         struct wps_context *wps;
367         int wps_success; /* WPS success event received */
368         int blacklist_cleared;
369
370         struct ibss_rsn *ibss_rsn;
371 };
372
373
374 /* wpa_supplicant.c */
375 int wpa_supplicant_reload_configuration(struct wpa_supplicant *wpa_s);
376
377 const char * wpa_supplicant_state_txt(int state);
378 int wpa_supplicant_driver_init(struct wpa_supplicant *wpa_s);
379 int wpa_supplicant_set_suites(struct wpa_supplicant *wpa_s,
380                               struct wpa_scan_res *bss,
381                               struct wpa_ssid *ssid,
382                               u8 *wpa_ie, size_t *wpa_ie_len);
383 void wpa_supplicant_associate(struct wpa_supplicant *wpa_s,
384                               struct wpa_scan_res *bss,
385                               struct wpa_ssid *ssid);
386 void wpa_supplicant_set_non_wpa_policy(struct wpa_supplicant *wpa_s,
387                                        struct wpa_ssid *ssid);
388 void wpa_supplicant_initiate_eapol(struct wpa_supplicant *wpa_s);
389 int wpa_supplicant_get_scan_results(struct wpa_supplicant *wpa_s);
390 void wpa_clear_keys(struct wpa_supplicant *wpa_s, const u8 *addr);
391 void wpa_supplicant_req_auth_timeout(struct wpa_supplicant *wpa_s,
392                                      int sec, int usec);
393 void wpa_supplicant_set_state(struct wpa_supplicant *wpa_s, wpa_states state);
394 struct wpa_ssid * wpa_supplicant_get_ssid(struct wpa_supplicant *wpa_s);
395 void wpa_supplicant_cancel_auth_timeout(struct wpa_supplicant *wpa_s);
396 void wpa_supplicant_deauthenticate(struct wpa_supplicant *wpa_s,
397                                    int reason_code);
398 void wpa_supplicant_disassociate(struct wpa_supplicant *wpa_s,
399                                  int reason_code);
400
401 void wpa_show_license(void);
402
403 struct wpa_supplicant * wpa_supplicant_add_iface(struct wpa_global *global,
404                                                  struct wpa_interface *iface);
405 int wpa_supplicant_remove_iface(struct wpa_global *global,
406                                 struct wpa_supplicant *wpa_s);
407 struct wpa_supplicant * wpa_supplicant_get_iface(struct wpa_global *global,
408                                                  const char *ifname);
409 struct wpa_global * wpa_supplicant_init(struct wpa_params *params);
410 int wpa_supplicant_run(struct wpa_global *global);
411 void wpa_supplicant_deinit(struct wpa_global *global);
412
413 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
414                               struct wpa_ssid *ssid);
415
416 /* scan.c */
417 void wpa_supplicant_req_scan(struct wpa_supplicant *wpa_s, int sec, int usec);
418 void wpa_supplicant_cancel_scan(struct wpa_supplicant *wpa_s);
419
420 /* events.c */
421 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s);
422
423 /* driver_ops */
424 static inline void * wpa_drv_init(struct wpa_supplicant *wpa_s,
425                                   const char *ifname)
426 {
427         if (wpa_s->driver->init2)
428                 return wpa_s->driver->init2(wpa_s, ifname, wpa_s->global);
429         if (wpa_s->driver->init) {
430                 return wpa_s->driver->init(wpa_s, ifname);
431         }
432         return NULL;
433 }
434
435 static inline void wpa_drv_deinit(struct wpa_supplicant *wpa_s)
436 {
437         if (wpa_s->driver->deinit)
438                 wpa_s->driver->deinit(wpa_s->drv_priv);
439 }
440
441 static inline int wpa_drv_set_param(struct wpa_supplicant *wpa_s,
442                                     const char *param)
443 {
444         if (wpa_s->driver->set_param)
445                 return wpa_s->driver->set_param(wpa_s->drv_priv, param);
446         return 0;
447 }
448
449 static inline int wpa_drv_set_drop_unencrypted(struct wpa_supplicant *wpa_s,
450                                                int enabled)
451 {
452         if (wpa_s->driver->set_drop_unencrypted) {
453                 return wpa_s->driver->set_drop_unencrypted(wpa_s->drv_priv,
454                                                            enabled);
455         }
456         return -1;
457 }
458
459 static inline int wpa_drv_set_countermeasures(struct wpa_supplicant *wpa_s,
460                                               int enabled)
461 {
462         if (wpa_s->driver->set_countermeasures) {
463                 return wpa_s->driver->set_countermeasures(wpa_s->drv_priv,
464                                                           enabled);
465         }
466         return -1;
467 }
468
469 static inline int wpa_drv_set_auth_alg(struct wpa_supplicant *wpa_s,
470                                        int auth_alg)
471 {
472         if (wpa_s->driver->set_auth_alg) {
473                 return wpa_s->driver->set_auth_alg(wpa_s->drv_priv,
474                                                    auth_alg);
475         }
476         return -1;
477 }
478
479 static inline int wpa_drv_set_wpa(struct wpa_supplicant *wpa_s, int enabled)
480 {
481         if (wpa_s->driver->set_wpa) {
482                 return wpa_s->driver->set_wpa(wpa_s->drv_priv, enabled);
483         }
484         return 0;
485 }
486
487 static inline int wpa_drv_set_mode(struct wpa_supplicant *wpa_s, int mode)
488 {
489         if (wpa_s->driver->set_mode) {
490                 return wpa_s->driver->set_mode(wpa_s->drv_priv, mode);
491         }
492         return 0;
493 }
494
495 static inline int wpa_drv_associate(struct wpa_supplicant *wpa_s,
496                                     struct wpa_driver_associate_params *params)
497 {
498         if (wpa_s->driver->associate) {
499                 return wpa_s->driver->associate(wpa_s->drv_priv, params);
500         }
501         return -1;
502 }
503
504 static inline int wpa_drv_scan(struct wpa_supplicant *wpa_s,
505                                struct wpa_driver_scan_params *params)
506 {
507         if (wpa_s->driver->scan2)
508                 return wpa_s->driver->scan2(wpa_s->drv_priv, params);
509         if (wpa_s->driver->scan)
510                 return wpa_s->driver->scan(wpa_s->drv_priv,
511                                            params->ssids[0].ssid,
512                                            params->ssids[0].ssid_len);
513         return -1;
514 }
515
516 static inline int wpa_drv_get_scan_results(struct wpa_supplicant *wpa_s,
517                                            struct wpa_scan_result *results,
518                                            size_t max_size)
519 {
520         if (wpa_s->driver->get_scan_results) {
521                 return wpa_s->driver->get_scan_results(wpa_s->drv_priv,
522                                                        results, max_size);
523         }
524         return -1;
525 }
526
527 static inline struct wpa_scan_results * wpa_drv_get_scan_results2(
528         struct wpa_supplicant *wpa_s)
529 {
530         if (wpa_s->driver->get_scan_results2)
531                 return wpa_s->driver->get_scan_results2(wpa_s->drv_priv);
532         return NULL;
533 }
534
535 static inline int wpa_drv_get_bssid(struct wpa_supplicant *wpa_s, u8 *bssid)
536 {
537         if (wpa_s->driver->get_bssid) {
538                 return wpa_s->driver->get_bssid(wpa_s->drv_priv, bssid);
539         }
540         return -1;
541 }
542
543 static inline int wpa_drv_get_ssid(struct wpa_supplicant *wpa_s, u8 *ssid)
544 {
545         if (wpa_s->driver->get_ssid) {
546                 return wpa_s->driver->get_ssid(wpa_s->drv_priv, ssid);
547         }
548         return -1;
549 }
550
551 static inline int wpa_drv_set_key(struct wpa_supplicant *wpa_s, wpa_alg alg,
552                                    const u8 *addr, int key_idx, int set_tx,
553                                    const u8 *seq, size_t seq_len,
554                                    const u8 *key, size_t key_len)
555 {
556         if (wpa_s->driver->set_key) {
557                 wpa_s->keys_cleared = 0;
558                 return wpa_s->driver->set_key(wpa_s->drv_priv, alg, addr,
559                                               key_idx, set_tx, seq, seq_len,
560                                               key, key_len);
561         }
562         return -1;
563 }
564
565 static inline int wpa_drv_deauthenticate(struct wpa_supplicant *wpa_s,
566                                          const u8 *addr, int reason_code)
567 {
568         if (wpa_s->driver->deauthenticate) {
569                 return wpa_s->driver->deauthenticate(wpa_s->drv_priv, addr,
570                                                      reason_code);
571         }
572         return -1;
573 }
574
575 static inline int wpa_drv_disassociate(struct wpa_supplicant *wpa_s,
576                                        const u8 *addr, int reason_code)
577 {
578         if (wpa_s->driver->disassociate) {
579                 return wpa_s->driver->disassociate(wpa_s->drv_priv, addr,
580                                                    reason_code);
581         }
582         return -1;
583 }
584
585 static inline int wpa_drv_add_pmkid(struct wpa_supplicant *wpa_s,
586                                     const u8 *bssid, const u8 *pmkid)
587 {
588         if (wpa_s->driver->add_pmkid) {
589                 return wpa_s->driver->add_pmkid(wpa_s->drv_priv, bssid, pmkid);
590         }
591         return -1;
592 }
593
594 static inline int wpa_drv_remove_pmkid(struct wpa_supplicant *wpa_s,
595                                        const u8 *bssid, const u8 *pmkid)
596 {
597         if (wpa_s->driver->remove_pmkid) {
598                 return wpa_s->driver->remove_pmkid(wpa_s->drv_priv, bssid,
599                                                    pmkid);
600         }
601         return -1;
602 }
603
604 static inline int wpa_drv_flush_pmkid(struct wpa_supplicant *wpa_s)
605 {
606         if (wpa_s->driver->flush_pmkid) {
607                 return wpa_s->driver->flush_pmkid(wpa_s->drv_priv);
608         }
609         return -1;
610 }
611
612 static inline int wpa_drv_get_capa(struct wpa_supplicant *wpa_s,
613                                    struct wpa_driver_capa *capa)
614 {
615         if (wpa_s->driver->get_capa) {
616                 return wpa_s->driver->get_capa(wpa_s->drv_priv, capa);
617         }
618         return -1;
619 }
620
621 static inline void wpa_drv_poll(struct wpa_supplicant *wpa_s)
622 {
623         if (wpa_s->driver->poll) {
624                 wpa_s->driver->poll(wpa_s->drv_priv);
625         }
626 }
627
628 static inline const char * wpa_drv_get_ifname(struct wpa_supplicant *wpa_s)
629 {
630         if (wpa_s->driver->get_ifname) {
631                 return wpa_s->driver->get_ifname(wpa_s->drv_priv);
632         }
633         return NULL;
634 }
635
636 static inline const u8 * wpa_drv_get_mac_addr(struct wpa_supplicant *wpa_s)
637 {
638         if (wpa_s->driver->get_mac_addr) {
639                 return wpa_s->driver->get_mac_addr(wpa_s->drv_priv);
640         }
641         return NULL;
642 }
643
644 static inline int wpa_drv_send_eapol(struct wpa_supplicant *wpa_s,
645                                      const u8 *dst, u16 proto,
646                                      const u8 *data, size_t data_len)
647 {
648         if (wpa_s->driver->send_eapol)
649                 return wpa_s->driver->send_eapol(wpa_s->drv_priv, dst, proto,
650                                                  data, data_len);
651         return -1;
652 }
653
654 static inline int wpa_drv_set_operstate(struct wpa_supplicant *wpa_s,
655                                         int state)
656 {
657         if (wpa_s->driver->set_operstate)
658                 return wpa_s->driver->set_operstate(wpa_s->drv_priv, state);
659         return 0;
660 }
661
662 static inline int wpa_drv_mlme_setprotection(struct wpa_supplicant *wpa_s,
663                                              const u8 *addr, int protect_type,
664                                              int key_type)
665 {
666         if (wpa_s->driver->mlme_setprotection)
667                 return wpa_s->driver->mlme_setprotection(wpa_s->drv_priv, addr,
668                                                          protect_type,
669                                                          key_type);
670         return 0;
671 }
672
673 static inline struct wpa_hw_modes *
674 wpa_drv_get_hw_feature_data(struct wpa_supplicant *wpa_s, u16 *num_modes,
675                             u16 *flags)
676 {
677         if (wpa_s->driver->get_hw_feature_data)
678                 return wpa_s->driver->get_hw_feature_data(wpa_s->drv_priv,
679                                                           num_modes, flags);
680         return NULL;
681 }
682
683 static inline int wpa_drv_set_channel(struct wpa_supplicant *wpa_s,
684                                       wpa_hw_mode phymode, int chan,
685                                       int freq)
686 {
687         if (wpa_s->driver->set_channel)
688                 return wpa_s->driver->set_channel(wpa_s->drv_priv, phymode,
689                                                   chan, freq);
690         return -1;
691 }
692
693 static inline int wpa_drv_set_ssid(struct wpa_supplicant *wpa_s,
694                                    const u8 *ssid, size_t ssid_len)
695 {
696         if (wpa_s->driver->set_ssid) {
697                 return wpa_s->driver->set_ssid(wpa_s->drv_priv, ssid,
698                                                ssid_len);
699         }
700         return -1;
701 }
702
703 static inline int wpa_drv_set_bssid(struct wpa_supplicant *wpa_s,
704                                     const u8 *bssid)
705 {
706         if (wpa_s->driver->set_bssid) {
707                 return wpa_s->driver->set_bssid(wpa_s->drv_priv, bssid);
708         }
709         return -1;
710 }
711
712 static inline int wpa_drv_set_country(struct wpa_supplicant *wpa_s,
713                                       const char *alpha2)
714 {
715         if (wpa_s->driver->set_country)
716                 return wpa_s->driver->set_country(wpa_s->drv_priv, alpha2);
717         return 0;
718 }
719
720 static inline int wpa_drv_send_mlme(struct wpa_supplicant *wpa_s,
721                                     const u8 *data, size_t data_len)
722 {
723         if (wpa_s->driver->send_mlme)
724                 return wpa_s->driver->send_mlme(wpa_s->drv_priv,
725                                                 data, data_len);
726         return -1;
727 }
728
729 static inline int wpa_drv_mlme_add_sta(struct wpa_supplicant *wpa_s,
730                                        const u8 *addr, const u8 *supp_rates,
731                                        size_t supp_rates_len)
732 {
733         if (wpa_s->driver->mlme_add_sta)
734                 return wpa_s->driver->mlme_add_sta(wpa_s->drv_priv, addr,
735                                                    supp_rates, supp_rates_len);
736         return -1;
737 }
738
739 static inline int wpa_drv_mlme_remove_sta(struct wpa_supplicant *wpa_s,
740                                           const u8 *addr)
741 {
742         if (wpa_s->driver->mlme_remove_sta)
743                 return wpa_s->driver->mlme_remove_sta(wpa_s->drv_priv, addr);
744         return -1;
745 }
746
747 static inline int wpa_drv_update_ft_ies(struct wpa_supplicant *wpa_s,
748                                         const u8 *md,
749                                         const u8 *ies, size_t ies_len)
750 {
751         if (wpa_s->driver->update_ft_ies)
752                 return wpa_s->driver->update_ft_ies(wpa_s->drv_priv, md,
753                                                     ies, ies_len);
754         return -1;
755 }
756
757 static inline int wpa_drv_send_ft_action(struct wpa_supplicant *wpa_s,
758                                          u8 action, const u8 *target_ap,
759                                          const u8 *ies, size_t ies_len)
760 {
761         if (wpa_s->driver->send_ft_action)
762                 return wpa_s->driver->send_ft_action(wpa_s->drv_priv, action,
763                                                      target_ap, ies, ies_len);
764         return -1;
765 }
766
767 static inline int wpa_drv_set_probe_req_ie(struct wpa_supplicant *wpa_s,
768                                            const u8 *ies, size_t ies_len)
769 {
770         if (wpa_s->driver->set_probe_req_ie)
771                 return wpa_s->driver->set_probe_req_ie(wpa_s->drv_priv, ies,
772                                                        ies_len);
773         return -1;
774 }
775
776 #endif /* WPA_SUPPLICANT_I_H */