wpa_supplicant_i.h - platform/external/wpa_supplicant - Git at Google

 /*
  * wpa_supplicant - Internal definitions
  * Copyright (c) 2003-2006, Jouni Malinen <[email protected]>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  *
  * Alternatively, this software may be distributed under the terms of BSD
  * license.
  *
  * See README and COPYING for more details.
  */

 #ifndef WPA_SUPPLICANT_I_H
 #define WPA_SUPPLICANT_I_H

 #include "driver.h"

 struct wpa_blacklist {
 	struct wpa_blacklist *next;
 	u8 bssid[ETH_ALEN];
 	int count;
 };


 struct wpa_scan_result;
 struct wpa_sm;
 struct wpa_supplicant;

 /*
  * Forward declarations of private structures used within the ctrl_iface
  * backends. Other parts of wpa_supplicant do not have access to data stored in
  * these structures.
  */
 struct ctrl_iface_priv;
 struct ctrl_iface_global_priv;
 struct ctrl_iface_dbus_priv;

 /**
  * struct wpa_interface - Parameters for wpa_supplicant_add_iface()
  */
 struct wpa_interface {
 	/**
 	 * confname - Configuration name (file or profile) name
 	 *
 	 * This can also be %NULL when a configuration file is not used. In
 	 * that case, ctrl_interface must be set to allow the interface to be
 	 * configured.
 	 */
 	const char *confname;

 	/**
 	 * ctrl_interface - Control interface parameter
 	 *
 	 * If a configuration file is not used, this variable can be used to
 	 * set the ctrl_interface parameter that would have otherwise been read
 	 * from the configuration file. If both confname and ctrl_interface are
 	 * set, ctrl_interface is used to override the value from configuration
 	 * file.
 	 */
 	const char *ctrl_interface;

 	/**
 	 * driver - Driver interface name, or %NULL to use the default driver
 	 */
 	const char *driver;

 	/**
 	 * driver_param - Driver interface parameters
 	 *
 	 * If a configuration file is not used, this variable can be used to
 	 * set the driver_param parameters that would have otherwise been read
 	 * from the configuration file. If both confname and driver_param are
 	 * set, driver_param is used to override the value from configuration
 	 * file.
 	 */
 	const char *driver_param;

 	/**
 	 * ifname - Interface name
 	 */
 	const char *ifname;

 	/**
 	 * bridge_ifname - Optional bridge interface name
 	 *
 	 * If the driver interface (ifname) is included in a Linux bridge
 	 * device, the bridge interface may need to be used for receiving EAPOL
 	 * frames. This can be enabled by setting this variable to enable
 	 * receiving of EAPOL frames from an additional interface.
 	 */
 	const char *bridge_ifname;
 };

 /**
  * struct wpa_params - Parameters for wpa_supplicant_init()
  */
 struct wpa_params {
 	/**
 	 * daemonize - Run %wpa_supplicant in the background
 	 */
 	int daemonize;

 	/**
 	 * wait_for_interface - Wait for the network interface to appear
 	 *
 	 * If set, %wpa_supplicant will wait until all the configured network
 	 * interfaces are available before starting processing. Please note
 	 * that in many cases, a better alternative would be to start
 	 * %wpa_supplicant without network interfaces and add the interfaces
 	 * dynamically whenever they become available.
 	 */
 	int wait_for_interface;

 	/**
 	 * wait_for_monitor - Wait for a monitor program before starting
 	 */
 	int wait_for_monitor;

 	/**
 	 * pid_file - Path to a PID (process ID) file
 	 *
 	 * If this and daemonize are set, process ID of the background process
 	 * will be written to the specified file.
 	 */
 	char *pid_file;

 	/**
 	 * wpa_debug_level - Debugging verbosity level (e.g., MSG_INFO)
 	 */
 	int wpa_debug_level;

 	/**
 	 * wpa_debug_show_keys - Whether keying material is included in debug
 	 *
 	 * This parameter can be used to allow keying material to be included
 	 * in debug messages. This is a security risk and this option should
 	 * not be enabled in normal configuration. If needed during
 	 * development or while troubleshooting, this option can provide more
 	 * details for figuring out what is happening.
 	 */
 	int wpa_debug_show_keys;

 	/**
 	 * wpa_debug_timestamp - Whether to include timestamp in debug messages
 	 */
 	int wpa_debug_timestamp;

 	/**
 	 * ctrl_interface - Global ctrl_iface path/parameter
 	 */
 	char *ctrl_interface;

 	/**
 	 * dbus_ctrl_interface - Enable the DBus control interface
 	 */
 	int dbus_ctrl_interface;

 	/**
 	 * wpa_debug_file_path - Path of debug file or %NULL to use stdout
 	 */
 	const char *wpa_debug_file_path;
 };

 /**
  * struct wpa_global - Internal, global data for all %wpa_supplicant interfaces
  *
  * This structure is initialized by calling wpa_supplicant_init() when starting
  * %wpa_supplicant.
  */
 struct wpa_global {
 	struct wpa_supplicant *ifaces;
 	struct wpa_params params;
 	struct ctrl_iface_global_priv *ctrl_iface;
 	struct ctrl_iface_dbus_priv *dbus_ctrl_iface;
 };


 struct wpa_client_mlme {
 #ifdef CONFIG_CLIENT_MLME
 	enum {
 		IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
 		IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED,
 		IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED
 	} state;
 	u8 prev_bssid[ETH_ALEN];
 	u8 ssid[32];
 	size_t ssid_len;
 	u16 aid;
 	u16 ap_capab, capab;
 	u8 *extra_ie; /* to be added to the end of AssocReq */
 	size_t extra_ie_len;
 	wpa_key_mgmt key_mgmt;

 	/* The last AssocReq/Resp IEs */
 	u8 *assocreq_ies, *assocresp_ies;
 	size_t assocreq_ies_len, assocresp_ies_len;

 	int auth_tries, assoc_tries;

 	unsigned int ssid_set:1;
 	unsigned int bssid_set:1;
 	unsigned int prev_bssid_set:1;
 	unsigned int authenticated:1;
 	unsigned int associated:1;
 	unsigned int probereq_poll:1;
 	unsigned int use_protection:1;
 	unsigned int create_ibss:1;
 	unsigned int mixed_cell:1;
 	unsigned int wmm_enabled:1;

 	struct os_time last_probe;

 #define IEEE80211_AUTH_ALG_OPEN BIT(0)
 #define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
 #define IEEE80211_AUTH_ALG_LEAP BIT(2)
 	unsigned int auth_algs; /* bitfield of allowed auth algs */
 	int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
 	int auth_transaction;

 	struct os_time ibss_join_req;
 	u8 *probe_resp; /* ProbeResp template for IBSS */
 	size_t probe_resp_len;
 	u32 supp_rates_bits;

 	int wmm_last_param_set;

 	int sta_scanning;
 	int scan_hw_mode_idx;
 	int scan_channel_idx;
 	enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
 	struct os_time last_scan_completed;
 	int scan_oper_channel;
 	int scan_oper_freq;
 	int scan_oper_phymode;
 	u8 scan_ssid[32];
 	size_t scan_ssid_len;
 	int scan_skip_11b;

 	struct ieee80211_sta_bss *sta_bss_list;
 #define STA_HASH_SIZE 256
 #define STA_HASH(sta) (sta[5])
 	struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE];

 	int cts_protect_erp_frames;

 	int phymode; /* current mode; WPA_MODE_IEEE80211A, .. */
 	struct wpa_hw_modes *modes;
 	size_t num_modes;
 	unsigned int hw_modes; /* bitfield of allowed hardware modes;
 				* (1 << MODE_*) */
 	int num_curr_rates;
 	struct wpa_rate_data *curr_rates;
 	int freq; /* The current frequency in MHz */
 	int channel; /* The current IEEE 802.11 channel number */
 #else /* CONFIG_CLIENT_MLME */
 	int dummy; /* to keep MSVC happy */
 #endif /* CONFIG_CLIENT_MLME */
 };

 /**
  * struct wpa_supplicant - Internal data for wpa_supplicant interface
  *
  * This structure contains the internal data for core wpa_supplicant code. This
  * should be only used directly from the core code. However, a pointer to this
  * data is used from other files as an arbitrary context pointer in calls to
  * core functions.
  */
 struct wpa_supplicant {
 	struct wpa_global *global;
 	struct wpa_supplicant *next;
 	struct l2_packet_data *l2;
 	struct l2_packet_data *l2_br;
 	unsigned char own_addr[ETH_ALEN];
 	char ifname[100];
 #ifdef CONFIG_CTRL_IFACE_DBUS
 	char *dbus_path;
 #endif /* CONFIG_CTRL_IFACE_DBUS */
 	char bridge_ifname[16];

 	char *confname;
 	struct wpa_config *conf;
 	int countermeasures;
 	os_time_t last_michael_mic_error;
 	u8 bssid[ETH_ALEN];
 	u8 pending_bssid[ETH_ALEN]; /* If wpa_state == WPA_ASSOCIATING, this
 				     * field contains the targer BSSID. */
 	int reassociate; /* reassociation requested */
 	int disconnected; /* all connections disabled; i.e., do no reassociate
 			   * before this has been cleared */
 	struct wpa_ssid *current_ssid;

 	/* Selected configuration (based on Beacon/ProbeResp WPA IE) */
 	int pairwise_cipher;
 	int group_cipher;
 	int key_mgmt;
 	int mgmt_group_cipher;

 	void *drv_priv; /* private data used by driver_ops */

 	struct wpa_ssid *prev_scan_ssid; /* previously scanned SSID;
 					  * NULL = not yet initialized (start
 					  * with broadcast SSID)
 					  * BROADCAST_SSID_SCAN = broadcast
 					  * SSID was used in the previous scan
 					  */
 #define BROADCAST_SSID_SCAN ((struct wpa_ssid *) 1)

 	struct wpa_scan_result *scan_results;
 	int num_scan_results;

 	struct wpa_driver_ops *driver;
 	int interface_removed; /* whether the network interface has been
 				* removed */
 	struct wpa_sm *wpa;
 	struct eapol_sm *eapol;

 	struct ctrl_iface_priv *ctrl_iface;

 	wpa_states wpa_state;
 	int new_connection;
 	int reassociated_connection;

 	int eapol_received; /* number of EAPOL packets received after the
 			     * previous association event */

 	struct scard_data *scard;

 	unsigned char last_eapol_src[ETH_ALEN];

 	int keys_cleared;

 	struct wpa_blacklist *blacklist;

 	int scan_req; /* manual scan request; this forces a scan even if there
 		       * are no enabled networks in the configuration */
 	int scan_res_tried; /* whether ap_scan=1 mode has tried to fetch scan
 			     * results without a new scan request; this is used
 			     * to speed up the first association if the driver
 			     * has already available scan results. */

 	struct wpa_client_mlme mlme;
 	int use_client_mlme;
 	int scan_ongoing;   /* scan ongoing or not */
 	int link_speed;     /* current link speed */
 	int rssi;           /* current signal level */
 #ifdef ANDROID
 	int scan_interval;  /* time between scans when no APs available */
 #endif
 };


 /* wpa_supplicant.c */
 void wpa_supplicant_cancel_scan(struct wpa_supplicant *wpa_s);

 int wpa_supplicant_reload_configuration(struct wpa_supplicant *wpa_s);

 const char * wpa_supplicant_state_txt(int state);
 int wpa_supplicant_driver_init(struct wpa_supplicant *wpa_s,
 			       int wait_for_interface);
 struct wpa_blacklist * wpa_blacklist_get(struct wpa_supplicant *wpa_s,
 					 const u8 *bssid);
 int wpa_blacklist_add(struct wpa_supplicant *wpa_s, const u8 *bssid);
 void wpa_blacklist_clear(struct wpa_supplicant *wpa_s);
 int wpa_supplicant_set_suites(struct wpa_supplicant *wpa_s,
 			      struct wpa_scan_result *bss,
 			      struct wpa_ssid *ssid,
 			      u8 *wpa_ie, size_t *wpa_ie_len);
 void wpa_supplicant_associate(struct wpa_supplicant *wpa_s,
 			      struct wpa_scan_result *bss,
 			      struct wpa_ssid *ssid);
 void wpa_supplicant_set_non_wpa_policy(struct wpa_supplicant *wpa_s,
 				       struct wpa_ssid *ssid);
 void wpa_supplicant_initiate_eapol(struct wpa_supplicant *wpa_s);
 int wpa_supplicant_get_scan_results(struct wpa_supplicant *wpa_s);
 void wpa_clear_keys(struct wpa_supplicant *wpa_s, const u8 *addr);
 void wpa_supplicant_req_auth_timeout(struct wpa_supplicant *wpa_s,
 				     int sec, int usec);
 void wpa_supplicant_set_state(struct wpa_supplicant *wpa_s, wpa_states state);
 struct wpa_ssid * wpa_supplicant_get_ssid(struct wpa_supplicant *wpa_s);
 void wpa_supplicant_cancel_auth_timeout(struct wpa_supplicant *wpa_s);
 void wpa_supplicant_deauthenticate(struct wpa_supplicant *wpa_s,
 				   int reason_code);
 void wpa_supplicant_disassociate(struct wpa_supplicant *wpa_s,
 				 int reason_code);
 void wpa_supplicant_req_scan(struct wpa_supplicant *wpa_s, int sec, int usec);

 void wpa_show_license(void);

 struct wpa_supplicant * wpa_supplicant_add_iface(struct wpa_global *global,
 						 struct wpa_interface *iface);
 int wpa_supplicant_remove_iface(struct wpa_global *global,
 				struct wpa_supplicant *wpa_s);
 struct wpa_supplicant * wpa_supplicant_get_iface(struct wpa_global *global,
 						 const char *ifname);
 struct wpa_global * wpa_supplicant_init(struct wpa_params *params);
 int wpa_supplicant_run(struct wpa_global *global);
 void wpa_supplicant_deinit(struct wpa_global *global);

 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
 			      struct wpa_ssid *ssid);

 /* events.c */
 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s);

 /* driver_ops */
 static inline void * wpa_drv_init(struct wpa_supplicant *wpa_s,
 				  const char *ifname)
 {
 	if (wpa_s->driver->init) {
 		return wpa_s->driver->init(wpa_s, ifname);
 	}
 	return NULL;
 }

 static inline void wpa_drv_deinit(struct wpa_supplicant *wpa_s)
 {
 	if (wpa_s->driver->deinit)
 		wpa_s->driver->deinit(wpa_s->drv_priv);
 }

 static inline int wpa_drv_set_param(struct wpa_supplicant *wpa_s,
 				    const char *param)
 {
 	if (wpa_s->driver->set_param)
 		return wpa_s->driver->set_param(wpa_s->drv_priv, param);
 	return 0;
 }

 static inline int wpa_drv_set_drop_unencrypted(struct wpa_supplicant *wpa_s,
 					       int enabled)
 {
 	if (wpa_s->driver->set_drop_unencrypted) {
 		return wpa_s->driver->set_drop_unencrypted(wpa_s->drv_priv,
 							   enabled);
 	}
 	return -1;
 }

 static inline int wpa_drv_set_countermeasures(struct wpa_supplicant *wpa_s,
 					      int enabled)
 {
 	if (wpa_s->driver->set_countermeasures) {
 		return wpa_s->driver->set_countermeasures(wpa_s->drv_priv,
 							  enabled);
 	}
 	return -1;
 }

 static inline int wpa_drv_set_auth_alg(struct wpa_supplicant *wpa_s,
 				       int auth_alg)
 {
 	if (wpa_s->driver->set_auth_alg) {
 		return wpa_s->driver->set_auth_alg(wpa_s->drv_priv,
 						   auth_alg);
 	}
 	return -1;
 }

 static inline int wpa_drv_set_wpa(struct wpa_supplicant *wpa_s, int enabled)
 {
 	if (wpa_s->driver->set_wpa) {
 		return wpa_s->driver->set_wpa(wpa_s->drv_priv, enabled);
 	}
 	return 0;
 }

 static inline int wpa_drv_associate(struct wpa_supplicant *wpa_s,
 				    struct wpa_driver_associate_params *params)
 {
 	if (wpa_s->driver->associate) {
 		return wpa_s->driver->associate(wpa_s->drv_priv, params);
 	}
 	return -1;
 }

 static inline int wpa_drv_scan(struct wpa_supplicant *wpa_s, const u8 *ssid,
 			       size_t ssid_len)
 {
 	if (wpa_s->driver->scan) {
 		return wpa_s->driver->scan(wpa_s->drv_priv, ssid, ssid_len);
 	}
 	return -1;
 }

 static inline int wpa_drv_get_scan_results(struct wpa_supplicant *wpa_s,
 					   struct wpa_scan_result *results,
 					   size_t max_size)
 {
 	if (wpa_s->driver->get_scan_results) {
 		return wpa_s->driver->get_scan_results(wpa_s->drv_priv,
 						       results, max_size);
 	}
 	return -1;
 }

 static inline int wpa_drv_get_bssid(struct wpa_supplicant *wpa_s, u8 *bssid)
 {
 	if (wpa_s->driver->get_bssid) {
 		return wpa_s->driver->get_bssid(wpa_s->drv_priv, bssid);
 	}
 	return -1;
 }

 static inline int wpa_drv_get_ssid(struct wpa_supplicant *wpa_s, u8 *ssid)
 {
 	if (wpa_s->driver->get_ssid) {
 		return wpa_s->driver->get_ssid(wpa_s->drv_priv, ssid);
 	}
 	return -1;
 }

 static inline int wpa_drv_set_key(struct wpa_supplicant *wpa_s, wpa_alg alg,
 				   const u8 *addr, int key_idx, int set_tx,
 				   const u8 *seq, size_t seq_len,
 				   const u8 *key, size_t key_len)
 {
 	if (wpa_s->driver->set_key) {
 		wpa_s->keys_cleared = 0;
 		return wpa_s->driver->set_key(wpa_s->drv_priv, alg, addr,
 					      key_idx, set_tx, seq, seq_len,
 					      key, key_len);
 	}
 	return -1;
 }

 static inline int wpa_drv_deauthenticate(struct wpa_supplicant *wpa_s,
 					 const u8 *addr, int reason_code)
 {
 	if (wpa_s->driver->deauthenticate) {
 		return wpa_s->driver->deauthenticate(wpa_s->drv_priv, addr,
 						     reason_code);
 	}
 	return -1;
 }

 static inline int wpa_drv_disassociate(struct wpa_supplicant *wpa_s,
 				       const u8 *addr, int reason_code)
 {
 	if (wpa_s->driver->disassociate) {
 		return wpa_s->driver->disassociate(wpa_s->drv_priv, addr,
 						   reason_code);
 	}
 	return -1;
 }

 static inline int wpa_drv_add_pmkid(struct wpa_supplicant *wpa_s,
 				    const u8 *bssid, const u8 *pmkid)
 {
 	if (wpa_s->driver->add_pmkid) {
 		return wpa_s->driver->add_pmkid(wpa_s->drv_priv, bssid, pmkid);
 	}
 	return -1;
 }

 static inline int wpa_drv_remove_pmkid(struct wpa_supplicant *wpa_s,
 				       const u8 *bssid, const u8 *pmkid)
 {
 	if (wpa_s->driver->remove_pmkid) {
 		return wpa_s->driver->remove_pmkid(wpa_s->drv_priv, bssid,
 						   pmkid);
 	}
 	return -1;
 }

 static inline int wpa_drv_flush_pmkid(struct wpa_supplicant *wpa_s)
 {
 	if (wpa_s->driver->flush_pmkid) {
 		return wpa_s->driver->flush_pmkid(wpa_s->drv_priv);
 	}
 	return -1;
 }

 static inline int wpa_drv_get_capa(struct wpa_supplicant *wpa_s,
 				   struct wpa_driver_capa *capa)
 {
 	if (wpa_s->driver->get_capa) {
 		return wpa_s->driver->get_capa(wpa_s->drv_priv, capa);
 	}
 	return -1;
 }

 static inline void wpa_drv_poll(struct wpa_supplicant *wpa_s)
 {
 	if (wpa_s->driver->poll) {
 		wpa_s->driver->poll(wpa_s->drv_priv);
 	}
 }

 static inline const char * wpa_drv_get_ifname(struct wpa_supplicant *wpa_s)
 {
 	if (wpa_s->driver->get_ifname) {
 		return wpa_s->driver->get_ifname(wpa_s->drv_priv);
 	}
 	return NULL;
 }

 static inline const u8 * wpa_drv_get_mac_addr(struct wpa_supplicant *wpa_s)
 {
 	if (wpa_s->driver->get_mac_addr) {
 		return wpa_s->driver->get_mac_addr(wpa_s->drv_priv);
 	}
 	return NULL;
 }

 static inline int wpa_drv_send_eapol(struct wpa_supplicant *wpa_s,
 				     const u8 *dst, u16 proto,
 				     const u8 *data, size_t data_len)
 {
 	if (wpa_s->driver->send_eapol)
 		return wpa_s->driver->send_eapol(wpa_s->drv_priv, dst, proto,
 						 data, data_len);
 	return -1;
 }

 static inline int wpa_drv_set_operstate(struct wpa_supplicant *wpa_s,
 					int state)
 {
 	if (wpa_s->driver->set_operstate)
 		return wpa_s->driver->set_operstate(wpa_s->drv_priv, state);
 	return 0;
 }

 static inline int wpa_drv_mlme_setprotection(struct wpa_supplicant *wpa_s,
 					     const u8 *addr, int protect_type,
 					     int key_type)
 {
 	if (wpa_s->driver->mlme_setprotection)
 		return wpa_s->driver->mlme_setprotection(wpa_s->drv_priv, addr,
 							 protect_type,
 							 key_type);
 	return 0;
 }

 static inline struct wpa_hw_modes *
 wpa_drv_get_hw_feature_data(struct wpa_supplicant *wpa_s, u16 *num_modes,
 			    u16 *flags)
 {
 	if (wpa_s->driver->get_hw_feature_data)
 		return wpa_s->driver->get_hw_feature_data(wpa_s->drv_priv,
 							  num_modes, flags);
 	return NULL;
 }

 static inline int wpa_drv_set_channel(struct wpa_supplicant *wpa_s,
 				      wpa_hw_mode phymode, int chan,
 				      int freq)
 {
 	if (wpa_s->driver->set_channel)
 		return wpa_s->driver->set_channel(wpa_s->drv_priv, phymode,
 						  chan, freq);
 	return -1;
 }

 static inline int wpa_drv_set_ssid(struct wpa_supplicant *wpa_s,
 				   const u8 *ssid, size_t ssid_len)
 {
 	if (wpa_s->driver->set_ssid) {
 		return wpa_s->driver->set_ssid(wpa_s->drv_priv, ssid,
 					       ssid_len);
 	}
 	return -1;
 }

 static inline int wpa_drv_set_bssid(struct wpa_supplicant *wpa_s,
 				    const u8 *bssid)
 {
 	if (wpa_s->driver->set_bssid) {
 		return wpa_s->driver->set_bssid(wpa_s->drv_priv, bssid);
 	}
 	return -1;
 }

 static inline int wpa_drv_send_mlme(struct wpa_supplicant *wpa_s,
 				    const u8 *data, size_t data_len)
 {
 	if (wpa_s->driver->send_mlme)
 		return wpa_s->driver->send_mlme(wpa_s->drv_priv,
 						data, data_len);
 	return -1;
 }

 static inline int wpa_drv_mlme_add_sta(struct wpa_supplicant *wpa_s,
 				       const u8 *addr, const u8 *supp_rates,
 				       size_t supp_rates_len)
 {
 	if (wpa_s->driver->mlme_add_sta)
 		return wpa_s->driver->mlme_add_sta(wpa_s->drv_priv, addr,
 						   supp_rates, supp_rates_len);
 	return -1;
 }

 static inline int wpa_drv_mlme_remove_sta(struct wpa_supplicant *wpa_s,
 					  const u8 *addr)
 {
 	if (wpa_s->driver->mlme_remove_sta)
 		return wpa_s->driver->mlme_remove_sta(wpa_s->drv_priv, addr);
 	return -1;
 }

 static inline int wpa_drv_driver_cmd(struct wpa_supplicant *wpa_s,
 					  char *cmd, char *buf, size_t buf_len)
 {
 	if (wpa_s->driver->driver_cmd)
 		return wpa_s->driver->driver_cmd(wpa_s->drv_priv, cmd, buf, buf_len);
 	return -1;
 }

 #endif /* WPA_SUPPLICANT_I_H */
	/*
	* wpa_supplicant - Internal definitions
	* Copyright (c) 2003-2006, Jouni Malinen <[email protected]>
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License version 2 as
	* published by the Free Software Foundation.
	*
	* Alternatively, this software may be distributed under the terms of BSD
	* license.
	*
	* See README and COPYING for more details.
	*/

	#ifndef WPA_SUPPLICANT_I_H
	#define WPA_SUPPLICANT_I_H

	#include "driver.h"

	struct wpa_blacklist {
	struct wpa_blacklist *next;
	u8 bssid[ETH_ALEN];
	int count;
	};


	struct wpa_scan_result;
	struct wpa_sm;
	struct wpa_supplicant;

	/*
	* Forward declarations of private structures used within the ctrl_iface
	* backends. Other parts of wpa_supplicant do not have access to data stored in
	* these structures.
	*/
	struct ctrl_iface_priv;
	struct ctrl_iface_global_priv;
	struct ctrl_iface_dbus_priv;

	/**
	* struct wpa_interface - Parameters for wpa_supplicant_add_iface()
	*/
	struct wpa_interface {
	/**
	* confname - Configuration name (file or profile) name
	*
	* This can also be %NULL when a configuration file is not used. In
	* that case, ctrl_interface must be set to allow the interface to be
	* configured.
	*/
	const char *confname;

	/**
	* ctrl_interface - Control interface parameter
	*
	* If a configuration file is not used, this variable can be used to
	* set the ctrl_interface parameter that would have otherwise been read
	* from the configuration file. If both confname and ctrl_interface are
	* set, ctrl_interface is used to override the value from configuration
	* file.
	*/
	const char *ctrl_interface;

	/**
	* driver - Driver interface name, or %NULL to use the default driver
	*/
	const char *driver;

	/**
	* driver_param - Driver interface parameters
	*
	* If a configuration file is not used, this variable can be used to
	* set the driver_param parameters that would have otherwise been read
	* from the configuration file. If both confname and driver_param are
	* set, driver_param is used to override the value from configuration
	* file.
	*/
	const char *driver_param;

	/**
	* ifname - Interface name
	*/
	const char *ifname;

	/**
	* bridge_ifname - Optional bridge interface name
	*
	* If the driver interface (ifname) is included in a Linux bridge
	* device, the bridge interface may need to be used for receiving EAPOL
	* frames. This can be enabled by setting this variable to enable
	* receiving of EAPOL frames from an additional interface.
	*/
	const char *bridge_ifname;
	};

	/**
	* struct wpa_params - Parameters for wpa_supplicant_init()
	*/
	struct wpa_params {
	/**
	* daemonize - Run %wpa_supplicant in the background
	*/
	int daemonize;

	/**
	* wait_for_interface - Wait for the network interface to appear
	*
	* If set, %wpa_supplicant will wait until all the configured network
	* interfaces are available before starting processing. Please note
	* that in many cases, a better alternative would be to start
	* %wpa_supplicant without network interfaces and add the interfaces
	* dynamically whenever they become available.
	*/
	int wait_for_interface;

	/**
	* wait_for_monitor - Wait for a monitor program before starting
	*/
	int wait_for_monitor;

	/**
	* pid_file - Path to a PID (process ID) file
	*
	* If this and daemonize are set, process ID of the background process
	* will be written to the specified file.
	*/
	char *pid_file;

	/**
	* wpa_debug_level - Debugging verbosity level (e.g., MSG_INFO)
	*/
	int wpa_debug_level;

	/**
	* wpa_debug_show_keys - Whether keying material is included in debug
	*
	* This parameter can be used to allow keying material to be included
	* in debug messages. This is a security risk and this option should
	* not be enabled in normal configuration. If needed during
	* development or while troubleshooting, this option can provide more
	* details for figuring out what is happening.
	*/
	int wpa_debug_show_keys;

	/**
	* wpa_debug_timestamp - Whether to include timestamp in debug messages
	*/
	int wpa_debug_timestamp;

	/**
	* ctrl_interface - Global ctrl_iface path/parameter
	*/
	char *ctrl_interface;

	/**
	* dbus_ctrl_interface - Enable the DBus control interface
	*/
	int dbus_ctrl_interface;

	/**
	* wpa_debug_file_path - Path of debug file or %NULL to use stdout
	*/
	const char *wpa_debug_file_path;
	};

	/**
	* struct wpa_global - Internal, global data for all %wpa_supplicant interfaces
	*
	* This structure is initialized by calling wpa_supplicant_init() when starting
	* %wpa_supplicant.
	*/
	struct wpa_global {
	struct wpa_supplicant *ifaces;
	struct wpa_params params;
	struct ctrl_iface_global_priv *ctrl_iface;
	struct ctrl_iface_dbus_priv *dbus_ctrl_iface;
	};


	struct wpa_client_mlme {
	#ifdef CONFIG_CLIENT_MLME
	enum {
	IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
	IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED,
	IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED
	} state;
	u8 prev_bssid[ETH_ALEN];
	u8 ssid[32];
	size_t ssid_len;
	u16 aid;
	u16 ap_capab, capab;
	u8 extra_ie; / to be added to the end of AssocReq */
	size_t extra_ie_len;
	wpa_key_mgmt key_mgmt;

	/* The last AssocReq/Resp IEs */
	u8 assocreq_ies, assocresp_ies;
	size_t assocreq_ies_len, assocresp_ies_len;

	int auth_tries, assoc_tries;

	unsigned int ssid_set:1;
	unsigned int bssid_set:1;
	unsigned int prev_bssid_set:1;
	unsigned int authenticated:1;
	unsigned int associated:1;
	unsigned int probereq_poll:1;
	unsigned int use_protection:1;
	unsigned int create_ibss:1;
	unsigned int mixed_cell:1;
	unsigned int wmm_enabled:1;

	struct os_time last_probe;

	#define IEEE80211_AUTH_ALG_OPEN BIT(0)
	#define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
	#define IEEE80211_AUTH_ALG_LEAP BIT(2)
	unsigned int auth_algs; /* bitfield of allowed auth algs */
	int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
	int auth_transaction;

	struct os_time ibss_join_req;
	u8 probe_resp; / ProbeResp template for IBSS */
	size_t probe_resp_len;
	u32 supp_rates_bits;

	int wmm_last_param_set;

	int sta_scanning;
	int scan_hw_mode_idx;
	int scan_channel_idx;
	enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
	struct os_time last_scan_completed;
	int scan_oper_channel;
	int scan_oper_freq;
	int scan_oper_phymode;
	u8 scan_ssid[32];
	size_t scan_ssid_len;
	int scan_skip_11b;

	struct ieee80211_sta_bss *sta_bss_list;
	#define STA_HASH_SIZE 256
	#define STA_HASH(sta) (sta[5])
	struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE];

	int cts_protect_erp_frames;

	int phymode; /* current mode; WPA_MODE_IEEE80211A, .. */
	struct wpa_hw_modes *modes;
	size_t num_modes;
	unsigned int hw_modes; /* bitfield of allowed hardware modes;
	* (1 << MODE_) /
	int num_curr_rates;
	struct wpa_rate_data *curr_rates;
	int freq; /* The current frequency in MHz */
	int channel; /* The current IEEE 802.11 channel number */
	#else /* CONFIG_CLIENT_MLME */
	int dummy; /* to keep MSVC happy */
	#endif /* CONFIG_CLIENT_MLME */
	};

	/**
	* struct wpa_supplicant - Internal data for wpa_supplicant interface
	*
	* This structure contains the internal data for core wpa_supplicant code. This
	* should be only used directly from the core code. However, a pointer to this
	* data is used from other files as an arbitrary context pointer in calls to
	* core functions.
	*/
	struct wpa_supplicant {
	struct wpa_global *global;
	struct wpa_supplicant *next;
	struct l2_packet_data *l2;
	struct l2_packet_data *l2_br;
	unsigned char own_addr[ETH_ALEN];
	char ifname[100];
	#ifdef CONFIG_CTRL_IFACE_DBUS
	char *dbus_path;
	#endif /* CONFIG_CTRL_IFACE_DBUS */
	char bridge_ifname[16];

	char *confname;
	struct wpa_config *conf;
	int countermeasures;
	os_time_t last_michael_mic_error;
	u8 bssid[ETH_ALEN];
	u8 pending_bssid[ETH_ALEN]; /* If wpa_state == WPA_ASSOCIATING, this
	* field contains the targer BSSID. */
	int reassociate; /* reassociation requested */
	int disconnected; /* all connections disabled; i.e., do no reassociate
	* before this has been cleared */
	struct wpa_ssid *current_ssid;

	/* Selected configuration (based on Beacon/ProbeResp WPA IE) */
	int pairwise_cipher;
	int group_cipher;
	int key_mgmt;
	int mgmt_group_cipher;

	void drv_priv; / private data used by driver_ops */

	struct wpa_ssid prev_scan_ssid; / previously scanned SSID;
	* NULL = not yet initialized (start
	* with broadcast SSID)
	* BROADCAST_SSID_SCAN = broadcast
	* SSID was used in the previous scan
	*/
	#define BROADCAST_SSID_SCAN ((struct wpa_ssid *) 1)

	struct wpa_scan_result *scan_results;
	int num_scan_results;

	struct wpa_driver_ops *driver;
	int interface_removed; /* whether the network interface has been
	* removed */
	struct wpa_sm *wpa;
	struct eapol_sm *eapol;

	struct ctrl_iface_priv *ctrl_iface;

	wpa_states wpa_state;
	int new_connection;
	int reassociated_connection;

	int eapol_received; /* number of EAPOL packets received after the
	* previous association event */

	struct scard_data *scard;

	unsigned char last_eapol_src[ETH_ALEN];

	int keys_cleared;

	struct wpa_blacklist *blacklist;

	int scan_req; /* manual scan request; this forces a scan even if there
	* are no enabled networks in the configuration */
	int scan_res_tried; /* whether ap_scan=1 mode has tried to fetch scan
	* results without a new scan request; this is used
	* to speed up the first association if the driver
	* has already available scan results. */

	struct wpa_client_mlme mlme;
	int use_client_mlme;
	int scan_ongoing; /* scan ongoing or not */
	int link_speed; /* current link speed */
	int rssi; /* current signal level */
	#ifdef ANDROID
	int scan_interval; /* time between scans when no APs available */
	#endif
	};


	/* wpa_supplicant.c */
	void wpa_supplicant_cancel_scan(struct wpa_supplicant *wpa_s);

	int wpa_supplicant_reload_configuration(struct wpa_supplicant *wpa_s);

	const char * wpa_supplicant_state_txt(int state);
	int wpa_supplicant_driver_init(struct wpa_supplicant *wpa_s,
	int wait_for_interface);
	struct wpa_blacklist * wpa_blacklist_get(struct wpa_supplicant *wpa_s,
	const u8 *bssid);
	int wpa_blacklist_add(struct wpa_supplicant wpa_s, const u8 bssid);
	void wpa_blacklist_clear(struct wpa_supplicant *wpa_s);
	int wpa_supplicant_set_suites(struct wpa_supplicant *wpa_s,
	struct wpa_scan_result *bss,
	struct wpa_ssid *ssid,
	u8 wpa_ie, size_t wpa_ie_len);
	void wpa_supplicant_associate(struct wpa_supplicant *wpa_s,
	struct wpa_scan_result *bss,
	struct wpa_ssid *ssid);
	void wpa_supplicant_set_non_wpa_policy(struct wpa_supplicant *wpa_s,
	struct wpa_ssid *ssid);
	void wpa_supplicant_initiate_eapol(struct wpa_supplicant *wpa_s);
	int wpa_supplicant_get_scan_results(struct wpa_supplicant *wpa_s);
	void wpa_clear_keys(struct wpa_supplicant wpa_s, const u8 addr);
	void wpa_supplicant_req_auth_timeout(struct wpa_supplicant *wpa_s,
	int sec, int usec);
	void wpa_supplicant_set_state(struct wpa_supplicant *wpa_s, wpa_states state);
	struct wpa_ssid * wpa_supplicant_get_ssid(struct wpa_supplicant *wpa_s);
	void wpa_supplicant_cancel_auth_timeout(struct wpa_supplicant *wpa_s);
	void wpa_supplicant_deauthenticate(struct wpa_supplicant *wpa_s,
	int reason_code);
	void wpa_supplicant_disassociate(struct wpa_supplicant *wpa_s,
	int reason_code);
	void wpa_supplicant_req_scan(struct wpa_supplicant *wpa_s, int sec, int usec);

	void wpa_show_license(void);

	struct wpa_supplicant * wpa_supplicant_add_iface(struct wpa_global *global,
	struct wpa_interface *iface);
	int wpa_supplicant_remove_iface(struct wpa_global *global,
	struct wpa_supplicant *wpa_s);
	struct wpa_supplicant * wpa_supplicant_get_iface(struct wpa_global *global,
	const char *ifname);
	struct wpa_global * wpa_supplicant_init(struct wpa_params *params);
	int wpa_supplicant_run(struct wpa_global *global);
	void wpa_supplicant_deinit(struct wpa_global *global);

	int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
	struct wpa_ssid *ssid);

	/* events.c */
	void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s);

	/* driver_ops */
	static inline void * wpa_drv_init(struct wpa_supplicant *wpa_s,
	const char *ifname)
	{
	if (wpa_s->driver->init) {
	return wpa_s->driver->init(wpa_s, ifname);
	}
	return NULL;
	}

	static inline void wpa_drv_deinit(struct wpa_supplicant *wpa_s)
	{
	if (wpa_s->driver->deinit)
	wpa_s->driver->deinit(wpa_s->drv_priv);
	}

	static inline int wpa_drv_set_param(struct wpa_supplicant *wpa_s,
	const char *param)
	{
	if (wpa_s->driver->set_param)
	return wpa_s->driver->set_param(wpa_s->drv_priv, param);
	return 0;
	}

	static inline int wpa_drv_set_drop_unencrypted(struct wpa_supplicant *wpa_s,
	int enabled)
	{
	if (wpa_s->driver->set_drop_unencrypted) {
	return wpa_s->driver->set_drop_unencrypted(wpa_s->drv_priv,
	enabled);
	}
	return -1;
	}

	static inline int wpa_drv_set_countermeasures(struct wpa_supplicant *wpa_s,
	int enabled)
	{
	if (wpa_s->driver->set_countermeasures) {
	return wpa_s->driver->set_countermeasures(wpa_s->drv_priv,
	enabled);
	}
	return -1;
	}

	static inline int wpa_drv_set_auth_alg(struct wpa_supplicant *wpa_s,
	int auth_alg)
	{
	if (wpa_s->driver->set_auth_alg) {
	return wpa_s->driver->set_auth_alg(wpa_s->drv_priv,
	auth_alg);
	}
	return -1;
	}

	static inline int wpa_drv_set_wpa(struct wpa_supplicant *wpa_s, int enabled)
	{
	if (wpa_s->driver->set_wpa) {
	return wpa_s->driver->set_wpa(wpa_s->drv_priv, enabled);
	}
	return 0;
	}

	static inline int wpa_drv_associate(struct wpa_supplicant *wpa_s,
	struct wpa_driver_associate_params *params)
	{
	if (wpa_s->driver->associate) {
	return wpa_s->driver->associate(wpa_s->drv_priv, params);
	}
	return -1;
	}

	static inline int wpa_drv_scan(struct wpa_supplicant wpa_s, const u8 ssid,
	size_t ssid_len)
	{
	if (wpa_s->driver->scan) {
	return wpa_s->driver->scan(wpa_s->drv_priv, ssid, ssid_len);
	}
	return -1;
	}

	static inline int wpa_drv_get_scan_results(struct wpa_supplicant *wpa_s,
	struct wpa_scan_result *results,
	size_t max_size)
	{
	if (wpa_s->driver->get_scan_results) {
	return wpa_s->driver->get_scan_results(wpa_s->drv_priv,
	results, max_size);
	}
	return -1;
	}

	static inline int wpa_drv_get_bssid(struct wpa_supplicant wpa_s, u8 bssid)
	{
	if (wpa_s->driver->get_bssid) {
	return wpa_s->driver->get_bssid(wpa_s->drv_priv, bssid);
	}
	return -1;
	}

	static inline int wpa_drv_get_ssid(struct wpa_supplicant wpa_s, u8 ssid)
	{
	if (wpa_s->driver->get_ssid) {
	return wpa_s->driver->get_ssid(wpa_s->drv_priv, ssid);
	}
	return -1;
	}

	static inline int wpa_drv_set_key(struct wpa_supplicant *wpa_s, wpa_alg alg,
	const u8 *addr, int key_idx, int set_tx,
	const u8 *seq, size_t seq_len,
	const u8 *key, size_t key_len)
	{
	if (wpa_s->driver->set_key) {
	wpa_s->keys_cleared = 0;
	return wpa_s->driver->set_key(wpa_s->drv_priv, alg, addr,
	key_idx, set_tx, seq, seq_len,
	key, key_len);
	}
	return -1;
	}

	static inline int wpa_drv_deauthenticate(struct wpa_supplicant *wpa_s,
	const u8 *addr, int reason_code)
	{
	if (wpa_s->driver->deauthenticate) {
	return wpa_s->driver->deauthenticate(wpa_s->drv_priv, addr,
	reason_code);
	}
	return -1;
	}

	static inline int wpa_drv_disassociate(struct wpa_supplicant *wpa_s,
	const u8 *addr, int reason_code)
	{
	if (wpa_s->driver->disassociate) {
	return wpa_s->driver->disassociate(wpa_s->drv_priv, addr,
	reason_code);
	}
	return -1;
	}

	static inline int wpa_drv_add_pmkid(struct wpa_supplicant *wpa_s,
	const u8 bssid, const u8 pmkid)
	{
	if (wpa_s->driver->add_pmkid) {
	return wpa_s->driver->add_pmkid(wpa_s->drv_priv, bssid, pmkid);
	}
	return -1;
	}

	static inline int wpa_drv_remove_pmkid(struct wpa_supplicant *wpa_s,
	const u8 bssid, const u8 pmkid)
	{
	if (wpa_s->driver->remove_pmkid) {
	return wpa_s->driver->remove_pmkid(wpa_s->drv_priv, bssid,
	pmkid);
	}
	return -1;
	}

	static inline int wpa_drv_flush_pmkid(struct wpa_supplicant *wpa_s)
	{
	if (wpa_s->driver->flush_pmkid) {
	return wpa_s->driver->flush_pmkid(wpa_s->drv_priv);
	}
	return -1;
	}

	static inline int wpa_drv_get_capa(struct wpa_supplicant *wpa_s,
	struct wpa_driver_capa *capa)
	{
	if (wpa_s->driver->get_capa) {
	return wpa_s->driver->get_capa(wpa_s->drv_priv, capa);
	}
	return -1;
	}

	static inline void wpa_drv_poll(struct wpa_supplicant *wpa_s)
	{
	if (wpa_s->driver->poll) {
	wpa_s->driver->poll(wpa_s->drv_priv);
	}
	}

	static inline const char * wpa_drv_get_ifname(struct wpa_supplicant *wpa_s)
	{
	if (wpa_s->driver->get_ifname) {
	return wpa_s->driver->get_ifname(wpa_s->drv_priv);
	}
	return NULL;
	}

	static inline const u8 * wpa_drv_get_mac_addr(struct wpa_supplicant *wpa_s)
	{
	if (wpa_s->driver->get_mac_addr) {
	return wpa_s->driver->get_mac_addr(wpa_s->drv_priv);
	}
	return NULL;
	}

	static inline int wpa_drv_send_eapol(struct wpa_supplicant *wpa_s,
	const u8 *dst, u16 proto,
	const u8 *data, size_t data_len)
	{
	if (wpa_s->driver->send_eapol)
	return wpa_s->driver->send_eapol(wpa_s->drv_priv, dst, proto,
	data, data_len);
	return -1;
	}

	static inline int wpa_drv_set_operstate(struct wpa_supplicant *wpa_s,
	int state)
	{
	if (wpa_s->driver->set_operstate)
	return wpa_s->driver->set_operstate(wpa_s->drv_priv, state);
	return 0;
	}

	static inline int wpa_drv_mlme_setprotection(struct wpa_supplicant *wpa_s,
	const u8 *addr, int protect_type,
	int key_type)
	{
	if (wpa_s->driver->mlme_setprotection)
	return wpa_s->driver->mlme_setprotection(wpa_s->drv_priv, addr,
	protect_type,
	key_type);
	return 0;
	}

	static inline struct wpa_hw_modes *
	wpa_drv_get_hw_feature_data(struct wpa_supplicant wpa_s, u16 num_modes,
	u16 *flags)
	{
	if (wpa_s->driver->get_hw_feature_data)
	return wpa_s->driver->get_hw_feature_data(wpa_s->drv_priv,
	num_modes, flags);
	return NULL;
	}

	static inline int wpa_drv_set_channel(struct wpa_supplicant *wpa_s,
	wpa_hw_mode phymode, int chan,
	int freq)
	{
	if (wpa_s->driver->set_channel)
	return wpa_s->driver->set_channel(wpa_s->drv_priv, phymode,
	chan, freq);
	return -1;
	}

	static inline int wpa_drv_set_ssid(struct wpa_supplicant *wpa_s,
	const u8 *ssid, size_t ssid_len)
	{
	if (wpa_s->driver->set_ssid) {
	return wpa_s->driver->set_ssid(wpa_s->drv_priv, ssid,
	ssid_len);
	}
	return -1;
	}

	static inline int wpa_drv_set_bssid(struct wpa_supplicant *wpa_s,
	const u8 *bssid)
	{
	if (wpa_s->driver->set_bssid) {
	return wpa_s->driver->set_bssid(wpa_s->drv_priv, bssid);
	}
	return -1;
	}

	static inline int wpa_drv_send_mlme(struct wpa_supplicant *wpa_s,
	const u8 *data, size_t data_len)
	{
	if (wpa_s->driver->send_mlme)
	return wpa_s->driver->send_mlme(wpa_s->drv_priv,
	data, data_len);
	return -1;
	}

	static inline int wpa_drv_mlme_add_sta(struct wpa_supplicant *wpa_s,
	const u8 addr, const u8 supp_rates,
	size_t supp_rates_len)
	{
	if (wpa_s->driver->mlme_add_sta)
	return wpa_s->driver->mlme_add_sta(wpa_s->drv_priv, addr,
	supp_rates, supp_rates_len);
	return -1;
	}

	static inline int wpa_drv_mlme_remove_sta(struct wpa_supplicant *wpa_s,
	const u8 *addr)
	{
	if (wpa_s->driver->mlme_remove_sta)
	return wpa_s->driver->mlme_remove_sta(wpa_s->drv_priv, addr);
	return -1;
	}

	static inline int wpa_drv_driver_cmd(struct wpa_supplicant *wpa_s,
	char cmd, char buf, size_t buf_len)
	{
	if (wpa_s->driver->driver_cmd)
	return wpa_s->driver->driver_cmd(wpa_s->drv_priv, cmd, buf, buf_len);
	return -1;
	}

	#endif /* WPA_SUPPLICANT_I_H */