text: /*
   * wpa_supplicant - WPA definitions
   * Copyright (c) 2003-2015, Jouni Malinen <j@w1.fi>
   *
   * This software may be distributed under the terms of the BSD license.
   * See README for more details.
   */
  
  #ifndef WPA_H
  #define WPA_H
  
  #include "common/defs.h"
  #include "common/eapol_common.h"
  #include "common/wpa_common.h"
  #include "common/ieee802_11_defs.h"
  
  struct wpa_sm;
  struct eapol_sm;
  struct wpa_config_blob;
  struct hostapd_freq_params;
  
  struct wpa_sm_ctx {
  	void *ctx; /* pointer to arbitrary upper level context */
  	void *msg_ctx; /* upper level context for wpa_msg() calls */
  
  	void (*set_state)(void *ctx, enum wpa_states state);
  	enum wpa_states (*get_state)(void *ctx);
  	void (*deauthenticate)(void * ctx, int reason_code);
  	int (*set_key)(void *ctx, enum 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);
  	void * (*get_network_ctx)(void *ctx);
  	int (*get_bssid)(void *ctx, u8 *bssid);
  	int (*ether_send)(void *ctx, const u8 *dest, u16 proto, const u8 *buf,
  			  size_t len);
  	int (*get_beacon_ie)(void *ctx);
  	void (*cancel_auth_timeout)(void *ctx);
  	u8 * (*alloc_eapol)(void *ctx, u8 type, const void *data, u16 data_len,
  			    size_t *msg_len, void **data_pos);
  	int (*add_pmkid)(void *ctx, void *network_ctx, const u8 *bssid,
  			 const u8 *pmkid);
  	int (*remove_pmkid)(void *ctx, void *network_ctx, const u8 *bssid,
  			    const u8 *pmkid);
  	void (*set_config_blob)(void *ctx, struct wpa_config_blob *blob);
  	const struct wpa_config_blob * (*get_config_blob)(void *ctx,
  							  const char *name);
  	int (*mlme_setprotection)(void *ctx, const u8 *addr,
  				  int protection_type, int key_type);
  	int (*update_ft_ies)(void *ctx, const u8 *md, const u8 *ies,
  			     size_t ies_len);
  	int (*send_ft_action)(void *ctx, u8 action, const u8 *target_ap,
  			      const u8 *ies, size_t ies_len);
  	int (*mark_authenticated)(void *ctx, const u8 *target_ap);
  #ifdef CONFIG_TDLS
  	int (*tdls_get_capa)(void *ctx, int *tdls_supported,
  			     int *tdls_ext_setup, int *tdls_chan_switch);
  	int (*send_tdls_mgmt)(void *ctx, const u8 *dst,
  			      u8 action_code, u8 dialog_token,
  			      u16 status_code, u32 peer_capab,
  			      int initiator, const u8 *buf, size_t len);
  	int (*tdls_oper)(void *ctx, int oper, const u8 *peer);
  	int (*tdls_peer_addset)(void *ctx, const u8 *addr, int add, u16 aid,
  				u16 capability, const u8 *supp_rates,
  				size_t supp_rates_len,
  				const struct ieee80211_ht_capabilities *ht_capab,
  				const struct ieee80211_vht_capabilities *vht_capab,
  				u8 qosinfo, int wmm, const u8 *ext_capab,
  				size_t ext_capab_len, const u8 *supp_channels,
  				size_t supp_channels_len,
  				const u8 *supp_oper_classes,
  				size_t supp_oper_classes_len);
  	int (*tdls_enable_channel_switch)(
  		void *ctx, const u8 *addr, u8 oper_class,
  		const struct hostapd_freq_params *params);
  	int (*tdls_disable_channel_switch)(void *ctx, const u8 *addr);
  #endif /* CONFIG_TDLS */
  	void (*set_rekey_offload)(void *ctx, const u8 *kek, size_t kek_len,
  				  const u8 *kck, size_t kck_len,
  				  const u8 *replay_ctr);
  	int (*key_mgmt_set_pmk)(void *ctx, const u8 *pmk, size_t pmk_len);
  	void (*fils_hlp_rx)(void *ctx, const u8 *dst, const u8 *src,
  			    const u8 *pkt, size_t pkt_len);
  };
  
  
  enum wpa_sm_conf_params {
  	RSNA_PMK_LIFETIME /* dot11RSNAConfigPMKLifetime */,
  	RSNA_PMK_REAUTH_THRESHOLD /* dot11RSNAConfigPMKReauthThreshold */,
  	RSNA_SA_TIMEOUT /* dot11RSNAConfigSATimeout */,
  	WPA_PARAM_PROTO,
  	WPA_PARAM_PAIRWISE,
  	WPA_PARAM_GROUP,
  	WPA_PARAM_KEY_MGMT,
  	WPA_PARAM_MGMT_GROUP,
  	WPA_PARAM_RSN_ENABLED,
  	WPA_PARAM_MFP
  };
  
  struct rsn_supp_config {
  	void *network_ctx;
  	int peerkey_enabled;
  	int allowed_pairwise_cipher; /* bitfield of WPA_CIPHER_* */
  	int proactive_key_caching;
  	int eap_workaround;
  	void *eap_conf_ctx;
  	const u8 *ssid;
  	size_t ssid_len;
  	int wpa_ptk_rekey;
  	int p2p;
  	int wpa_rsc_relaxation;
  	const u8 *fils_cache_id;
  };
  
  #ifndef CONFIG_NO_WPA
  
  struct wpa_sm * wpa_sm_init(struct wpa_sm_ctx *ctx);
  void wpa_sm_deinit(struct wpa_sm *sm);
  void wpa_sm_notify_assoc(struct wpa_sm *sm, const u8 *bssid);
  void wpa_sm_notify_disassoc(struct wpa_sm *sm);
  void wpa_sm_set_pmk(struct wpa_sm *sm, const u8 *pmk, size_t pmk_len,
  		    const u8 *pmkid, const u8 *bssid);
  void wpa_sm_set_pmk_from_pmksa(struct wpa_sm *sm);
  void wpa_sm_set_fast_reauth(struct wpa_sm *sm, int fast_reauth);
  void wpa_sm_set_scard_ctx(struct wpa_sm *sm, void *scard_ctx);
  void wpa_sm_set_config(struct wpa_sm *sm, struct rsn_supp_config *config);
  void wpa_sm_set_own_addr(struct wpa_sm *sm, const u8 *addr);
  void wpa_sm_set_ifname(struct wpa_sm *sm, const char *ifname,
  		       const char *bridge_ifname);
  void wpa_sm_set_eapol(struct wpa_sm *sm, struct eapol_sm *eapol);
  int wpa_sm_set_assoc_wpa_ie(struct wpa_sm *sm, const u8 *ie, size_t len);
  int wpa_sm_set_assoc_wpa_ie_default(struct wpa_sm *sm, u8 *wpa_ie,
  				    size_t *wpa_ie_len);
  int wpa_sm_set_ap_wpa_ie(struct wpa_sm *sm, const u8 *ie, size_t len);
  int wpa_sm_set_ap_rsn_ie(struct wpa_sm *sm, const u8 *ie, size_t len);
  int wpa_sm_get_mib(struct wpa_sm *sm, char *buf, size_t buflen);
  
  int wpa_sm_set_param(struct wpa_sm *sm, enum wpa_sm_conf_params param,
  		     unsigned int value);
  
  int wpa_sm_get_status(struct wpa_sm *sm, char *buf, size_t buflen,
  		      int verbose);
  int wpa_sm_pmf_enabled(struct wpa_sm *sm);
  
  void wpa_sm_key_request(struct wpa_sm *sm, int error, int pairwise);
  
  int wpa_parse_wpa_ie(const u8 *wpa_ie, size_t wpa_ie_len,
  		     struct wpa_ie_data *data);
  
  void wpa_sm_aborted_cached(struct wpa_sm *sm);
  int wpa_sm_rx_eapol(struct wpa_sm *sm, const u8 *src_addr,
  		    const u8 *buf, size_t len);
  int wpa_sm_parse_own_wpa_ie(struct wpa_sm *sm, struct wpa_ie_data *data);
  int wpa_sm_pmksa_cache_list(struct wpa_sm *sm, char *buf, size_t len);
  struct rsn_pmksa_cache_entry * wpa_sm_pmksa_cache_head(struct wpa_sm *sm);
  struct rsn_pmksa_cache_entry *
  wpa_sm_pmksa_cache_add_entry(struct wpa_sm *sm,
  			     struct rsn_pmksa_cache_entry * entry);
  void wpa_sm_drop_sa(struct wpa_sm *sm);
  int wpa_sm_has_ptk(struct wpa_sm *sm);
  
  void wpa_sm_update_replay_ctr(struct wpa_sm *sm, const u8 *replay_ctr);
  
  void wpa_sm_pmksa_cache_flush(struct wpa_sm *sm, void *network_ctx);
  
  int wpa_sm_get_p2p_ip_addr(struct wpa_sm *sm, u8 *buf);
  
  void wpa_sm_set_rx_replay_ctr(struct wpa_sm *sm, const u8 *rx_replay_counter);
  void wpa_sm_set_ptk_kck_kek(struct wpa_sm *sm,
  			    const u8 *ptk_kck, size_t ptk_kck_len,
  			    const u8 *ptk_kek, size_t ptk_kek_len);
  
  #else /* CONFIG_NO_WPA */
  
  static inline struct wpa_sm * wpa_sm_init(struct wpa_sm_ctx *ctx)
  {
  	return (struct wpa_sm *) 1;
  }
  
  static inline void wpa_sm_deinit(struct wpa_sm *sm)
  {
  }
  
  static inline void wpa_sm_notify_assoc(struct wpa_sm *sm, const u8 *bssid)
  {
  }
  
  static inline void wpa_sm_notify_disassoc(struct wpa_sm *sm)
  {
  }
  
  static inline void wpa_sm_set_pmk(struct wpa_sm *sm, const u8 *pmk,
  				  size_t pmk_len, const u8 *pmkid,
  				  const u8 *bssid)
  {
  }
  
  static inline void wpa_sm_set_pmk_from_pmksa(struct wpa_sm *sm)
  {
  }
  
  static inline void wpa_sm_set_fast_reauth(struct wpa_sm *sm, int fast_reauth)
  {
  }
  
  static inline void wpa_sm_set_scard_ctx(struct wpa_sm *sm, void *scard_ctx)
  {
  }
  
  static inline void wpa_sm_set_config(struct wpa_sm *sm,
  				     struct rsn_supp_config *config)
  {
  }
  
  static inline void wpa_sm_set_own_addr(struct wpa_sm *sm, const u8 *addr)
  {
  }
  
  static inline void wpa_sm_set_ifname(struct wpa_sm *sm, const char *ifname,
  				     const char *bridge_ifname)
  {
  }
  
  static inline void wpa_sm_set_eapol(struct wpa_sm *sm, struct eapol_sm *eapol)
  {
  }
  
  static inline int wpa_sm_set_assoc_wpa_ie(struct wpa_sm *sm, const u8 *ie,
  					  size_t len)
  {
  	return -1;
  }
  
  static inline int wpa_sm_set_assoc_wpa_ie_default(struct wpa_sm *sm,
  						  u8 *wpa_ie,
  						  size_t *wpa_ie_len)
  {
  	return -1;
  }
  
  static inline int wpa_sm_set_ap_wpa_ie(struct wpa_sm *sm, const u8 *ie,
  				       size_t len)
  {
  	return -1;
  }
  
  static inline int wpa_sm_set_ap_rsn_ie(struct wpa_sm *sm, const u8 *ie,
  				       size_t len)
  {
  	return -1;
  }
  
  static inline int wpa_sm_get_mib(struct wpa_sm *sm, char *buf, size_t buflen)
  {
  	return 0;
  }
  
  static inline int wpa_sm_set_param(struct wpa_sm *sm,
  				   enum wpa_sm_conf_params param,
  				   unsigned int value)
  {
  	return -1;
  }
  
  static inline int wpa_sm_get_status(struct wpa_sm *sm, char *buf,
  				    size_t buflen, int verbose)
  {
  	return 0;
  }
  
  static inline int wpa_sm_pmf_enabled(struct wpa_sm *sm)
  {
  	return 0;
  }
  
  static inline void wpa_sm_key_request(struct wpa_sm *sm, int error,
  				      int pairwise)
  {
  }
  
  static inline int wpa_parse_wpa_ie(const u8 *wpa_ie, size_t wpa_ie_len,
  				   struct wpa_ie_data *data)
  {
  	return -1;
  }
  
  static inline void wpa_sm_aborted_cached(struct wpa_sm *sm)
  {
  }
  
  static inline int wpa_sm_rx_eapol(struct wpa_sm *sm, const u8 *src_addr,
  				  const u8 *buf, size_t len)
  {
  	return -1;
  }
  
  static inline int wpa_sm_parse_own_wpa_ie(struct wpa_sm *sm,
  					  struct wpa_ie_data *data)
  {
  	return -1;
  }
  
  static inline int wpa_sm_pmksa_cache_list(struct wpa_sm *sm, char *buf,
  					  size_t len)
  {
  	return -1;
  }
  
  static inline void wpa_sm_drop_sa(struct wpa_sm *sm)
  {
  }
  
  static inline int wpa_sm_has_ptk(struct wpa_sm *sm)
  {
  	return 0;
  }
  
  static inline void wpa_sm_update_replay_ctr(struct wpa_sm *sm,
  					    const u8 *replay_ctr)
  {
  }
  
  static inline void wpa_sm_pmksa_cache_flush(struct wpa_sm *sm,
  					    void *network_ctx)
  {
  }
  
  static inline void wpa_sm_set_rx_replay_ctr(struct wpa_sm *sm,
  					    const u8 *rx_replay_counter)
  {
  }
  
  static inline void wpa_sm_set_ptk_kck_kek(struct wpa_sm *sm, const u8 *ptk_kck,
  					  size_t ptk_kck_len,
  					  const u8 *ptk_kek, size_t ptk_kek_len)
  {
  }
  
  #endif /* CONFIG_NO_WPA */
  
  #ifdef CONFIG_PEERKEY
  int wpa_sm_stkstart(struct wpa_sm *sm, const u8 *peer);
  int wpa_sm_rx_eapol_peerkey(struct wpa_sm *sm, const u8 *src_addr,
  			    const u8 *buf, size_t len);
  #else /* CONFIG_PEERKEY */
  static inline int wpa_sm_stkstart(struct wpa_sm *sm, const u8 *peer)
  {
  	return -1;
  }
  
  static inline int wpa_sm_rx_eapol_peerkey(struct wpa_sm *sm, const u8 *src_addr,
  					  const u8 *buf, size_t len)
  {
  	return 0;
  }
  #endif /* CONFIG_PEERKEY */
  
  #ifdef CONFIG_IEEE80211R
  
  int wpa_sm_set_ft_params(struct wpa_sm *sm, const u8 *ies, size_t ies_len);
  int wpa_ft_prepare_auth_request(struct wpa_sm *sm, const u8 *mdie);
  int wpa_ft_process_response(struct wpa_sm *sm, const u8 *ies, size_t ies_len,
  			    int ft_action, const u8 *target_ap,
  			    const u8 *ric_ies, size_t ric_ies_len);
  int wpa_ft_is_completed(struct wpa_sm *sm);
  void wpa_reset_ft_completed(struct wpa_sm *sm);
  int wpa_ft_validate_reassoc_resp(struct wpa_sm *sm, const u8 *ies,
  				 size_t ies_len, const u8 *src_addr);
  int wpa_ft_start_over_ds(struct wpa_sm *sm, const u8 *target_ap,
  			 const u8 *mdie);
  
  #else /* CONFIG_IEEE80211R */
  
  static inline int
  wpa_sm_set_ft_params(struct wpa_sm *sm, const u8 *ies, size_t ies_len)
  {
  	return 0;
  }
  
  static inline int wpa_ft_prepare_auth_request(struct wpa_sm *sm,
  					      const u8 *mdie)
  {
  	return 0;
  }
  
  static inline int
  wpa_ft_process_response(struct wpa_sm *sm, const u8 *ies, size_t ies_len,
  			int ft_action, const u8 *target_ap)
  {
  	return 0;
  }
  
  static inline int wpa_ft_is_completed(struct wpa_sm *sm)
  {
  	return 0;
  }
  
  static inline void wpa_reset_ft_completed(struct wpa_sm *sm)
  {
  }
  
  static inline int
  wpa_ft_validate_reassoc_resp(struct wpa_sm *sm, const u8 *ies, size_t ies_len,
  			     const u8 *src_addr)
  {
  	return -1;
  }
  
  #endif /* CONFIG_IEEE80211R */
  
  
  /* tdls.c */
  void wpa_tdls_ap_ies(struct wpa_sm *sm, const u8 *ies, size_t len);
  void wpa_tdls_assoc_resp_ies(struct wpa_sm *sm, const u8 *ies, size_t len);
  int wpa_tdls_start(struct wpa_sm *sm, const u8 *addr);
  void wpa_tdls_remove(struct wpa_sm *sm, const u8 *addr);
  int wpa_tdls_teardown_link(struct wpa_sm *sm, const u8 *addr, u16 reason_code);
  int wpa_tdls_send_discovery_request(struct wpa_sm *sm, const u8 *addr);
  int wpa_tdls_init(struct wpa_sm *sm);
  void wpa_tdls_teardown_peers(struct wpa_sm *sm);
  void wpa_tdls_deinit(struct wpa_sm *sm);
  void wpa_tdls_enable(struct wpa_sm *sm, int enabled);
  void wpa_tdls_disable_unreachable_link(struct wpa_sm *sm, const u8 *addr);
  const char * wpa_tdls_get_link_status(struct wpa_sm *sm, const u8 *addr);
  int wpa_tdls_is_external_setup(struct wpa_sm *sm);
  int wpa_tdls_enable_chan_switch(struct wpa_sm *sm, const u8 *addr,
  				u8 oper_class,
  				struct hostapd_freq_params *freq_params);
  int wpa_tdls_disable_chan_switch(struct wpa_sm *sm, const u8 *addr);
  #ifdef CONFIG_TDLS_TESTING
  extern unsigned int tdls_testing;
  #endif /* CONFIG_TDLS_TESTING */
  
  
  int wpa_wnmsleep_install_key(struct wpa_sm *sm, u8 subelem_id, u8 *buf);
  void wpa_sm_set_test_assoc_ie(struct wpa_sm *sm, struct wpabuf *buf);
  
  struct wpabuf * fils_build_auth(struct wpa_sm *sm, int dh_group);
  int fils_process_auth(struct wpa_sm *sm, const u8 *bssid, const u8 *data,
  		      size_t len);
  struct wpabuf * fils_build_assoc_req(struct wpa_sm *sm, const u8 **kek,
  				     size_t *kek_len, const u8 **snonce,
  				     const u8 **anonce,
  				     const struct wpabuf **hlp,
  				     unsigned int num_hlp);
  int fils_process_assoc_resp(struct wpa_sm *sm, const u8 *resp, size_t len);
  int wpa_fils_is_completed(struct wpa_sm *sm);
  
  struct wpabuf * owe_build_assoc_req(struct wpa_sm *sm);
  int owe_process_assoc_resp(struct wpa_sm *sm, const u8 *resp_ies,
  			   size_t resp_ies_len);
  
  #endif /* WPA_H */
  