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* wpa_supplicant - Internal WPA state machine definitions
* Copyright (c) 2004-2006, Jouni Malinen <>
* 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 - 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;
#ifdef _MSC_VER
#pragma pack(pop)
#endif /* _MSC_VER */
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;
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)
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,
#endif /* WPA_I_H */