| /* |
| * hostapd - IEEE 802.11i-2004 / WPA Authenticator: Internal definitions |
| * Copyright (c) 2004-2007, Jouni Malinen <j@w1.fi> |
| * |
| * This software may be distributed under the terms of the BSD license. |
| * See README for more details. |
| */ |
| |
| #ifndef WPA_AUTH_I_H |
| #define WPA_AUTH_I_H |
| |
| /* max(dot11RSNAConfigGroupUpdateCount,dot11RSNAConfigPairwiseUpdateCount) */ |
| #define RSNA_MAX_EAPOL_RETRIES 4 |
| |
| struct wpa_group; |
| |
| struct wpa_stsl_negotiation { |
| struct wpa_stsl_negotiation *next; |
| u8 initiator[ETH_ALEN]; |
| u8 peer[ETH_ALEN]; |
| }; |
| |
| |
| struct wpa_state_machine { |
| struct wpa_authenticator *wpa_auth; |
| struct wpa_group *group; |
| |
| u8 addr[ETH_ALEN]; |
| |
| enum { |
| WPA_PTK_INITIALIZE, WPA_PTK_DISCONNECT, WPA_PTK_DISCONNECTED, |
| WPA_PTK_AUTHENTICATION, WPA_PTK_AUTHENTICATION2, |
| WPA_PTK_INITPMK, WPA_PTK_INITPSK, WPA_PTK_PTKSTART, |
| WPA_PTK_PTKCALCNEGOTIATING, WPA_PTK_PTKCALCNEGOTIATING2, |
| WPA_PTK_PTKINITNEGOTIATING, WPA_PTK_PTKINITDONE |
| } wpa_ptk_state; |
| |
| enum { |
| WPA_PTK_GROUP_IDLE = 0, |
| WPA_PTK_GROUP_REKEYNEGOTIATING, |
| WPA_PTK_GROUP_REKEYESTABLISHED, |
| WPA_PTK_GROUP_KEYERROR |
| } wpa_ptk_group_state; |
| |
| Boolean Init; |
| Boolean DeauthenticationRequest; |
| Boolean AuthenticationRequest; |
| Boolean ReAuthenticationRequest; |
| Boolean Disconnect; |
| int TimeoutCtr; |
| int GTimeoutCtr; |
| Boolean TimeoutEvt; |
| Boolean EAPOLKeyReceived; |
| Boolean EAPOLKeyPairwise; |
| Boolean EAPOLKeyRequest; |
| Boolean MICVerified; |
| Boolean GUpdateStationKeys; |
| u8 ANonce[WPA_NONCE_LEN]; |
| u8 SNonce[WPA_NONCE_LEN]; |
| u8 PMK[PMK_LEN]; |
| struct wpa_ptk PTK; |
| Boolean PTK_valid; |
| Boolean pairwise_set; |
| int keycount; |
| Boolean Pair; |
| struct wpa_key_replay_counter { |
| u8 counter[WPA_REPLAY_COUNTER_LEN]; |
| Boolean valid; |
| } key_replay[RSNA_MAX_EAPOL_RETRIES], |
| prev_key_replay[RSNA_MAX_EAPOL_RETRIES]; |
| Boolean PInitAKeys; /* WPA only, not in IEEE 802.11i */ |
| Boolean PTKRequest; /* not in IEEE 802.11i state machine */ |
| Boolean has_GTK; |
| Boolean PtkGroupInit; /* init request for PTK Group state machine */ |
| |
| u8 *last_rx_eapol_key; /* starting from IEEE 802.1X header */ |
| size_t last_rx_eapol_key_len; |
| |
| unsigned int changed:1; |
| unsigned int in_step_loop:1; |
| unsigned int pending_deinit:1; |
| unsigned int started:1; |
| unsigned int mgmt_frame_prot:1; |
| unsigned int rx_eapol_key_secure:1; |
| unsigned int update_snonce:1; |
| #ifdef CONFIG_IEEE80211R |
| unsigned int ft_completed:1; |
| unsigned int pmk_r1_name_valid:1; |
| #endif /* CONFIG_IEEE80211R */ |
| unsigned int is_wnmsleep:1; |
| |
| u8 req_replay_counter[WPA_REPLAY_COUNTER_LEN]; |
| int req_replay_counter_used; |
| |
| u8 *wpa_ie; |
| size_t wpa_ie_len; |
| |
| enum { |
| WPA_VERSION_NO_WPA = 0 /* WPA not used */, |
| WPA_VERSION_WPA = 1 /* WPA / IEEE 802.11i/D3.0 */, |
| WPA_VERSION_WPA2 = 2 /* WPA2 / IEEE 802.11i */ |
| } wpa; |
| int pairwise; /* Pairwise cipher suite, WPA_CIPHER_* */ |
| int wpa_key_mgmt; /* the selected WPA_KEY_MGMT_* */ |
| struct rsn_pmksa_cache_entry *pmksa; |
| |
| u32 dot11RSNAStatsTKIPLocalMICFailures; |
| u32 dot11RSNAStatsTKIPRemoteMICFailures; |
| |
| #ifdef CONFIG_IEEE80211R |
| u8 xxkey[PMK_LEN]; /* PSK or the second 256 bits of MSK */ |
| size_t xxkey_len; |
| u8 pmk_r1_name[WPA_PMK_NAME_LEN]; /* PMKR1Name derived from FT Auth |
| * Request */ |
| u8 r0kh_id[FT_R0KH_ID_MAX_LEN]; /* R0KH-ID from FT Auth Request */ |
| size_t r0kh_id_len; |
| u8 sup_pmk_r1_name[WPA_PMK_NAME_LEN]; /* PMKR1Name from EAPOL-Key |
| * message 2/4 */ |
| u8 *assoc_resp_ftie; |
| #endif /* CONFIG_IEEE80211R */ |
| |
| int pending_1_of_4_timeout; |
| }; |
| |
| |
| /* per group key state machine data */ |
| struct wpa_group { |
| struct wpa_group *next; |
| int vlan_id; |
| |
| Boolean GInit; |
| int GKeyDoneStations; |
| Boolean GTKReKey; |
| int GTK_len; |
| int GN, GM; |
| Boolean GTKAuthenticator; |
| u8 Counter[WPA_NONCE_LEN]; |
| |
| enum { |
| WPA_GROUP_GTK_INIT = 0, |
| WPA_GROUP_SETKEYS, WPA_GROUP_SETKEYSDONE |
| } wpa_group_state; |
| |
| u8 GMK[WPA_GMK_LEN]; |
| u8 GTK[2][WPA_GTK_MAX_LEN]; |
| u8 GNonce[WPA_NONCE_LEN]; |
| Boolean changed; |
| Boolean first_sta_seen; |
| Boolean reject_4way_hs_for_entropy; |
| #ifdef CONFIG_IEEE80211W |
| u8 IGTK[2][WPA_IGTK_LEN]; |
| int GN_igtk, GM_igtk; |
| #endif /* CONFIG_IEEE80211W */ |
| }; |
| |
| |
| struct wpa_ft_pmk_cache; |
| |
| /* per authenticator data */ |
| struct wpa_authenticator { |
| struct wpa_group *group; |
| |
| unsigned int dot11RSNAStatsTKIPRemoteMICFailures; |
| u32 dot11RSNAAuthenticationSuiteSelected; |
| u32 dot11RSNAPairwiseCipherSelected; |
| u32 dot11RSNAGroupCipherSelected; |
| u8 dot11RSNAPMKIDUsed[PMKID_LEN]; |
| u32 dot11RSNAAuthenticationSuiteRequested; /* FIX: update */ |
| u32 dot11RSNAPairwiseCipherRequested; /* FIX: update */ |
| u32 dot11RSNAGroupCipherRequested; /* FIX: update */ |
| unsigned int dot11RSNATKIPCounterMeasuresInvoked; |
| unsigned int dot11RSNA4WayHandshakeFailures; |
| |
| struct wpa_stsl_negotiation *stsl_negotiations; |
| |
| struct wpa_auth_config conf; |
| struct wpa_auth_callbacks cb; |
| |
| u8 *wpa_ie; |
| size_t wpa_ie_len; |
| |
| u8 addr[ETH_ALEN]; |
| |
| struct rsn_pmksa_cache *pmksa; |
| struct wpa_ft_pmk_cache *ft_pmk_cache; |
| }; |
| |
| |
| int wpa_write_rsn_ie(struct wpa_auth_config *conf, u8 *buf, size_t len, |
| const u8 *pmkid); |
| void wpa_auth_logger(struct wpa_authenticator *wpa_auth, const u8 *addr, |
| logger_level level, const char *txt); |
| void wpa_auth_vlogger(struct wpa_authenticator *wpa_auth, const u8 *addr, |
| logger_level level, const char *fmt, ...); |
| void __wpa_send_eapol(struct wpa_authenticator *wpa_auth, |
| struct wpa_state_machine *sm, int key_info, |
| const u8 *key_rsc, const u8 *nonce, |
| const u8 *kde, size_t kde_len, |
| int keyidx, int encr, int force_version); |
| int wpa_auth_for_each_sta(struct wpa_authenticator *wpa_auth, |
| int (*cb)(struct wpa_state_machine *sm, void *ctx), |
| void *cb_ctx); |
| int wpa_auth_for_each_auth(struct wpa_authenticator *wpa_auth, |
| int (*cb)(struct wpa_authenticator *a, void *ctx), |
| void *cb_ctx); |
| |
| #ifdef CONFIG_PEERKEY |
| int wpa_stsl_remove(struct wpa_authenticator *wpa_auth, |
| struct wpa_stsl_negotiation *neg); |
| void wpa_smk_error(struct wpa_authenticator *wpa_auth, |
| struct wpa_state_machine *sm, struct wpa_eapol_key *key); |
| void wpa_smk_m1(struct wpa_authenticator *wpa_auth, |
| struct wpa_state_machine *sm, struct wpa_eapol_key *key); |
| void wpa_smk_m3(struct wpa_authenticator *wpa_auth, |
| struct wpa_state_machine *sm, struct wpa_eapol_key *key); |
| #endif /* CONFIG_PEERKEY */ |
| |
| #ifdef CONFIG_IEEE80211R |
| int wpa_write_mdie(struct wpa_auth_config *conf, u8 *buf, size_t len); |
| int wpa_write_ftie(struct wpa_auth_config *conf, const u8 *r0kh_id, |
| size_t r0kh_id_len, |
| const u8 *anonce, const u8 *snonce, |
| u8 *buf, size_t len, const u8 *subelem, |
| size_t subelem_len); |
| int wpa_auth_derive_ptk_ft(struct wpa_state_machine *sm, const u8 *pmk, |
| struct wpa_ptk *ptk, size_t ptk_len); |
| struct wpa_ft_pmk_cache * wpa_ft_pmk_cache_init(void); |
| void wpa_ft_pmk_cache_deinit(struct wpa_ft_pmk_cache *cache); |
| void wpa_ft_install_ptk(struct wpa_state_machine *sm); |
| #endif /* CONFIG_IEEE80211R */ |
| |
| #endif /* WPA_AUTH_I_H */ |
