2 * hostapd - IEEE 802.11i-2004 / WPA Authenticator: Internal definitions
3 * Copyright (c) 2004-2015, Jouni Malinen <j@w1.fi>
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
12 /* max(dot11RSNAConfigGroupUpdateCount,dot11RSNAConfigPairwiseUpdateCount) */
13 #define RSNA_MAX_EAPOL_RETRIES 4
17 struct wpa_stsl_negotiation {
18 struct wpa_stsl_negotiation *next;
19 u8 initiator[ETH_ALEN];
24 struct wpa_state_machine {
25 struct wpa_authenticator *wpa_auth;
26 struct wpa_group *group;
29 u8 p2p_dev_addr[ETH_ALEN];
32 WPA_PTK_INITIALIZE, WPA_PTK_DISCONNECT, WPA_PTK_DISCONNECTED,
33 WPA_PTK_AUTHENTICATION, WPA_PTK_AUTHENTICATION2,
34 WPA_PTK_INITPMK, WPA_PTK_INITPSK, WPA_PTK_PTKSTART,
35 WPA_PTK_PTKCALCNEGOTIATING, WPA_PTK_PTKCALCNEGOTIATING2,
36 WPA_PTK_PTKINITNEGOTIATING, WPA_PTK_PTKINITDONE
40 WPA_PTK_GROUP_IDLE = 0,
41 WPA_PTK_GROUP_REKEYNEGOTIATING,
42 WPA_PTK_GROUP_REKEYESTABLISHED,
43 WPA_PTK_GROUP_KEYERROR
44 } wpa_ptk_group_state;
47 Boolean DeauthenticationRequest;
48 Boolean AuthenticationRequest;
49 Boolean ReAuthenticationRequest;
54 Boolean EAPOLKeyReceived;
55 Boolean EAPOLKeyPairwise;
56 Boolean EAPOLKeyRequest;
58 Boolean GUpdateStationKeys;
59 u8 ANonce[WPA_NONCE_LEN];
60 u8 SNonce[WPA_NONCE_LEN];
61 u8 alt_SNonce[WPA_NONCE_LEN];
62 u8 alt_replay_counter[WPA_REPLAY_COUNTER_LEN];
69 struct wpa_key_replay_counter {
70 u8 counter[WPA_REPLAY_COUNTER_LEN];
72 } key_replay[RSNA_MAX_EAPOL_RETRIES],
73 prev_key_replay[RSNA_MAX_EAPOL_RETRIES];
74 Boolean PInitAKeys; /* WPA only, not in IEEE 802.11i */
75 Boolean PTKRequest; /* not in IEEE 802.11i state machine */
77 Boolean PtkGroupInit; /* init request for PTK Group state machine */
79 u8 *last_rx_eapol_key; /* starting from IEEE 802.1X header */
80 size_t last_rx_eapol_key_len;
82 unsigned int changed:1;
83 unsigned int in_step_loop:1;
84 unsigned int pending_deinit:1;
85 unsigned int started:1;
86 unsigned int mgmt_frame_prot:1;
87 unsigned int rx_eapol_key_secure:1;
88 unsigned int update_snonce:1;
89 unsigned int alt_snonce_valid:1;
90 #ifdef CONFIG_IEEE80211R
91 unsigned int ft_completed:1;
92 unsigned int pmk_r1_name_valid:1;
93 #endif /* CONFIG_IEEE80211R */
94 unsigned int is_wnmsleep:1;
96 u8 req_replay_counter[WPA_REPLAY_COUNTER_LEN];
97 int req_replay_counter_used;
103 WPA_VERSION_NO_WPA = 0 /* WPA not used */,
104 WPA_VERSION_WPA = 1 /* WPA / IEEE 802.11i/D3.0 */,
105 WPA_VERSION_WPA2 = 2 /* WPA2 / IEEE 802.11i */
107 int pairwise; /* Pairwise cipher suite, WPA_CIPHER_* */
108 int wpa_key_mgmt; /* the selected WPA_KEY_MGMT_* */
109 struct rsn_pmksa_cache_entry *pmksa;
111 u32 dot11RSNAStatsTKIPLocalMICFailures;
112 u32 dot11RSNAStatsTKIPRemoteMICFailures;
114 #ifdef CONFIG_IEEE80211R
115 u8 xxkey[PMK_LEN]; /* PSK or the second 256 bits of MSK */
117 u8 pmk_r1_name[WPA_PMK_NAME_LEN]; /* PMKR1Name derived from FT Auth
119 u8 r0kh_id[FT_R0KH_ID_MAX_LEN]; /* R0KH-ID from FT Auth Request */
121 u8 sup_pmk_r1_name[WPA_PMK_NAME_LEN]; /* PMKR1Name from EAPOL-Key
125 void (*ft_pending_cb)(void *ctx, const u8 *dst, const u8 *bssid,
126 u16 auth_transaction, u16 status,
127 const u8 *ies, size_t ies_len);
128 void *ft_pending_cb_ctx;
129 struct wpabuf *ft_pending_req_ies;
130 u8 ft_pending_pull_nonce[FT_R0KH_R1KH_PULL_NONCE_LEN];
131 u8 ft_pending_auth_transaction;
132 u8 ft_pending_current_ap[ETH_ALEN];
133 #endif /* CONFIG_IEEE80211R */
135 int pending_1_of_4_timeout;
139 #endif /* CONFIG_P2P */
143 /* per group key state machine data */
145 struct wpa_group *next;
149 int GKeyDoneStations;
153 Boolean GTKAuthenticator;
154 u8 Counter[WPA_NONCE_LEN];
157 WPA_GROUP_GTK_INIT = 0,
158 WPA_GROUP_SETKEYS, WPA_GROUP_SETKEYSDONE,
159 WPA_GROUP_FATAL_FAILURE
163 u8 GTK[2][WPA_GTK_MAX_LEN];
164 u8 GNonce[WPA_NONCE_LEN];
166 Boolean first_sta_seen;
167 Boolean reject_4way_hs_for_entropy;
168 #ifdef CONFIG_IEEE80211W
169 u8 IGTK[2][WPA_IGTK_MAX_LEN];
170 int GN_igtk, GM_igtk;
171 #endif /* CONFIG_IEEE80211W */
172 /* Number of references except those in struct wpa_group->next */
173 unsigned int references;
177 struct wpa_ft_pmk_cache;
179 /* per authenticator data */
180 struct wpa_authenticator {
181 struct wpa_group *group;
183 unsigned int dot11RSNAStatsTKIPRemoteMICFailures;
184 u32 dot11RSNAAuthenticationSuiteSelected;
185 u32 dot11RSNAPairwiseCipherSelected;
186 u32 dot11RSNAGroupCipherSelected;
187 u8 dot11RSNAPMKIDUsed[PMKID_LEN];
188 u32 dot11RSNAAuthenticationSuiteRequested; /* FIX: update */
189 u32 dot11RSNAPairwiseCipherRequested; /* FIX: update */
190 u32 dot11RSNAGroupCipherRequested; /* FIX: update */
191 unsigned int dot11RSNATKIPCounterMeasuresInvoked;
192 unsigned int dot11RSNA4WayHandshakeFailures;
194 struct wpa_stsl_negotiation *stsl_negotiations;
196 struct wpa_auth_config conf;
197 struct wpa_auth_callbacks cb;
204 struct rsn_pmksa_cache *pmksa;
205 struct wpa_ft_pmk_cache *ft_pmk_cache;
208 struct bitfield *ip_pool;
209 #endif /* CONFIG_P2P */
213 int wpa_write_rsn_ie(struct wpa_auth_config *conf, u8 *buf, size_t len,
215 void wpa_auth_logger(struct wpa_authenticator *wpa_auth, const u8 *addr,
216 logger_level level, const char *txt);
217 void wpa_auth_vlogger(struct wpa_authenticator *wpa_auth, const u8 *addr,
218 logger_level level, const char *fmt, ...);
219 void __wpa_send_eapol(struct wpa_authenticator *wpa_auth,
220 struct wpa_state_machine *sm, int key_info,
221 const u8 *key_rsc, const u8 *nonce,
222 const u8 *kde, size_t kde_len,
223 int keyidx, int encr, int force_version);
224 int wpa_auth_for_each_sta(struct wpa_authenticator *wpa_auth,
225 int (*cb)(struct wpa_state_machine *sm, void *ctx),
227 int wpa_auth_for_each_auth(struct wpa_authenticator *wpa_auth,
228 int (*cb)(struct wpa_authenticator *a, void *ctx),
231 #ifdef CONFIG_PEERKEY
232 int wpa_stsl_remove(struct wpa_authenticator *wpa_auth,
233 struct wpa_stsl_negotiation *neg);
234 void wpa_smk_error(struct wpa_authenticator *wpa_auth,
235 struct wpa_state_machine *sm,
236 const u8 *key_data, size_t key_data_len);
237 void wpa_smk_m1(struct wpa_authenticator *wpa_auth,
238 struct wpa_state_machine *sm, struct wpa_eapol_key *key,
239 const u8 *key_data, size_t key_data_len);
240 void wpa_smk_m3(struct wpa_authenticator *wpa_auth,
241 struct wpa_state_machine *sm, struct wpa_eapol_key *key,
242 const u8 *key_data, size_t key_data_len);
243 #endif /* CONFIG_PEERKEY */
245 #ifdef CONFIG_IEEE80211R
246 int wpa_write_mdie(struct wpa_auth_config *conf, u8 *buf, size_t len);
247 int wpa_write_ftie(struct wpa_auth_config *conf, const u8 *r0kh_id,
249 const u8 *anonce, const u8 *snonce,
250 u8 *buf, size_t len, const u8 *subelem,
252 int wpa_auth_derive_ptk_ft(struct wpa_state_machine *sm, const u8 *pmk,
253 struct wpa_ptk *ptk);
254 struct wpa_ft_pmk_cache * wpa_ft_pmk_cache_init(void);
255 void wpa_ft_pmk_cache_deinit(struct wpa_ft_pmk_cache *cache);
256 void wpa_ft_install_ptk(struct wpa_state_machine *sm);
257 #endif /* CONFIG_IEEE80211R */
259 #endif /* WPA_AUTH_I_H */