text: /*
   * wpa_supplicant - Internal WPA state machine definitions
   * Copyright (c) 2004-2006, Jouni Malinen <j@w1.fi>
   *
   * 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_I_H
  #define WPA_I_H
  
  struct rsn_pmksa_candidate;
  
  #ifdef _MSC_VER
  #pragma pack(push, 1)
  #endif /* _MSC_VER */
  
  /**
   * struct wpa_ptk - WPA Pairwise Transient Key
   * IEEE Std 802.11i-2004 - 8.5.1.2 Pairwise key hierarchy
   */
  struct wpa_ptk {
  	u8 kck[16]; /* EAPOL-Key Key Confirmation Key (KCK) */
  	u8 kek[16]; /* EAPOL-Key Key Encryption Key (KEK) */
  	u8 tk1[16]; /* Temporal Key 1 (TK1) */
  	union {
  		u8 tk2[16]; /* Temporal Key 2 (TK2) */
  		struct {
  			u8 tx_mic_key[8];
  			u8 rx_mic_key[8];
  		} auth;
  	} u;
  } STRUCT_PACKED;
  
  #ifdef _MSC_VER
  #pragma pack(pop)
  #endif /* _MSC_VER */
  
  
  #ifdef CONFIG_PEERKEY
  #define PEERKEY_MAX_IE_LEN 80
  struct wpa_peerkey {
  	struct wpa_peerkey *next;
  	int initiator; /* whether this end was initator for SMK handshake */
  	u8 addr[ETH_ALEN]; /* other end MAC address */
  	u8 inonce[WPA_NONCE_LEN]; /* Initiator Nonce */
  	u8 pnonce[WPA_NONCE_LEN]; /* Peer Nonce */
  	u8 rsnie_i[PEERKEY_MAX_IE_LEN]; /* Initiator RSN IE */
  	size_t rsnie_i_len;
  	u8 rsnie_p[PEERKEY_MAX_IE_LEN]; /* Peer RSN IE */
  	size_t rsnie_p_len;
  	u8 smk[PMK_LEN];
  	int smk_complete;
  	u8 smkid[PMKID_LEN];
  	u32 lifetime;
  	os_time_t expiration;
  	int cipher; /* Selected cipher (WPA_CIPHER_*) */
  	u8 replay_counter[WPA_REPLAY_COUNTER_LEN];
  	int replay_counter_set;
  
  	struct wpa_ptk stk, tstk;
  	int stk_set, tstk_set;
  };
  #else /* CONFIG_PEERKEY */
  struct wpa_peerkey;
  #endif /* CONFIG_PEERKEY */
  
  
  /**
   * struct wpa_sm - Internal WPA state machine data
   */
  struct wpa_sm {
  	u8 pmk[PMK_LEN];
  	size_t pmk_len;
  	struct wpa_ptk ptk, tptk;
  	int ptk_set, tptk_set;
  	u8 snonce[WPA_NONCE_LEN];
  	u8 anonce[WPA_NONCE_LEN]; /* ANonce from the last 1/4 msg */
  	int renew_snonce;
  	u8 rx_replay_counter[WPA_REPLAY_COUNTER_LEN];
  	int rx_replay_counter_set;
  	u8 request_counter[WPA_REPLAY_COUNTER_LEN];
  
  	struct eapol_sm *eapol; /* EAPOL state machine from upper level code */
  
  	struct rsn_pmksa_cache *pmksa; /* PMKSA cache */
  	struct rsn_pmksa_cache_entry *cur_pmksa; /* current PMKSA entry */
  	struct rsn_pmksa_candidate *pmksa_candidates;
  
  	struct l2_packet_data *l2_preauth;
  	struct l2_packet_data *l2_preauth_br;
  	u8 preauth_bssid[ETH_ALEN]; /* current RSN pre-auth peer or
  				     * 00:00:00:00:00:00 if no pre-auth is
  				     * in progress */
  	struct eapol_sm *preauth_eapol;
  
  	struct wpa_sm_ctx *ctx;
  
  	void *scard_ctx; /* context for smartcard callbacks */
  	int fast_reauth; /* whether EAP fast re-authentication is enabled */
  
  	struct wpa_ssid *cur_ssid;
  
  	u8 own_addr[ETH_ALEN];
  	const char *ifname;
  	const char *bridge_ifname;
  	u8 bssid[ETH_ALEN];
  
  	unsigned int dot11RSNAConfigPMKLifetime;
  	unsigned int dot11RSNAConfigPMKReauthThreshold;
  	unsigned int dot11RSNAConfigSATimeout;
  
  	unsigned int dot11RSNA4WayHandshakeFailures;
  
  	/* Selected configuration (based on Beacon/ProbeResp WPA IE) */
  	unsigned int proto;
  	unsigned int pairwise_cipher;
  	unsigned int group_cipher;
  	unsigned int key_mgmt;
  	unsigned int mgmt_group_cipher;
  
  	u8 *assoc_wpa_ie; /* Own WPA/RSN IE from (Re)AssocReq */
  	size_t assoc_wpa_ie_len;
  	u8 *ap_wpa_ie, *ap_rsn_ie;
  	size_t ap_wpa_ie_len, ap_rsn_ie_len;
  
  #ifdef CONFIG_PEERKEY
  	struct wpa_peerkey *peerkey;
  #endif /* CONFIG_PEERKEY */
  };
  
  
  static inline void wpa_sm_set_state(struct wpa_sm *sm, wpa_states state)
  {
  	sm->ctx->set_state(sm->ctx->ctx, state);
  }
  
  static inline wpa_states wpa_sm_get_state(struct wpa_sm *sm)
  {
  	return sm->ctx->get_state(sm->ctx->ctx);
  }
  
  static inline void wpa_sm_deauthenticate(struct wpa_sm *sm, int reason_code)
  {
  	sm->ctx->deauthenticate(sm->ctx->ctx, reason_code);
  }
  
  static inline void wpa_sm_disassociate(struct wpa_sm *sm, int reason_code)
  {
  	sm->ctx->disassociate(sm->ctx->ctx, reason_code);
  }
  
  static inline int wpa_sm_set_key(struct wpa_sm *sm, 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)
  {
  	return sm->ctx->set_key(sm->ctx->ctx, alg, addr, key_idx, set_tx,
  				seq, seq_len, key, key_len);
  }
  
  static inline struct wpa_ssid * wpa_sm_get_ssid(struct wpa_sm *sm)
  {
  	return sm->ctx->get_ssid(sm->ctx->ctx);
  }
  
  static inline int wpa_sm_get_bssid(struct wpa_sm *sm, u8 *bssid)
  {
  	return sm->ctx->get_bssid(sm->ctx->ctx, bssid);
  }
  
  static inline int wpa_sm_ether_send(struct wpa_sm *sm, const u8 *dest,
  				    u16 proto, const u8 *buf, size_t len)
  {
  	return sm->ctx->ether_send(sm->ctx->ctx, dest, proto, buf, len);
  }
  
  static inline int wpa_sm_get_beacon_ie(struct wpa_sm *sm)
  {
  	return sm->ctx->get_beacon_ie(sm->ctx->ctx);
  }
  
  static inline void wpa_sm_cancel_auth_timeout(struct wpa_sm *sm)
  {
  	sm->ctx->cancel_auth_timeout(sm->ctx->ctx);
  }
  
  static inline u8 * wpa_sm_alloc_eapol(struct wpa_sm *sm, u8 type,
  				      const void *data, u16 data_len,
  				      size_t *msg_len, void **data_pos)
  {
  	return sm->ctx->alloc_eapol(sm->ctx->ctx, type, data, data_len,
  				    msg_len, data_pos);
  }
  
  static inline int wpa_sm_add_pmkid(struct wpa_sm *sm, const u8 *bssid,
  				   const u8 *pmkid)
  {
  	return sm->ctx->add_pmkid(sm->ctx->ctx, bssid, pmkid);
  }
  
  static inline int wpa_sm_remove_pmkid(struct wpa_sm *sm, const u8 *bssid,
  				      const u8 *pmkid)
  {
  	return sm->ctx->remove_pmkid(sm->ctx->ctx, bssid, pmkid);
  }
  
  static inline int wpa_sm_mlme_setprotection(struct wpa_sm *sm, const u8 *addr,
  					    int protect_type, int key_type)
  {
  	return sm->ctx->mlme_setprotection(sm->ctx->ctx, addr, protect_type,
  					   key_type);
  }
  
  #endif /* WPA_I_H */
  