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 #include "utils/list.h"
14 /* max(dot11RSNAConfigGroupUpdateCount,dot11RSNAConfigPairwiseUpdateCount) */
15 #define RSNA_MAX_EAPOL_RETRIES 4
19 struct wpa_state_machine {
20 struct wpa_authenticator *wpa_auth;
21 struct wpa_group *group;
24 u8 p2p_dev_addr[ETH_ALEN];
28 WPA_PTK_INITIALIZE, WPA_PTK_DISCONNECT, WPA_PTK_DISCONNECTED,
29 WPA_PTK_AUTHENTICATION, WPA_PTK_AUTHENTICATION2,
30 WPA_PTK_INITPMK, WPA_PTK_INITPSK, WPA_PTK_PTKSTART,
31 WPA_PTK_PTKCALCNEGOTIATING, WPA_PTK_PTKCALCNEGOTIATING2,
32 WPA_PTK_PTKINITNEGOTIATING, WPA_PTK_PTKINITDONE
36 WPA_PTK_GROUP_IDLE = 0,
37 WPA_PTK_GROUP_REKEYNEGOTIATING,
38 WPA_PTK_GROUP_REKEYESTABLISHED,
39 WPA_PTK_GROUP_KEYERROR
40 } wpa_ptk_group_state;
43 Boolean DeauthenticationRequest;
44 Boolean AuthenticationRequest;
45 Boolean ReAuthenticationRequest;
47 u16 disconnect_reason; /* specific reason code to use with Disconnect */
51 Boolean EAPOLKeyReceived;
52 Boolean EAPOLKeyPairwise;
53 Boolean EAPOLKeyRequest;
55 Boolean GUpdateStationKeys;
56 u8 ANonce[WPA_NONCE_LEN];
57 u8 SNonce[WPA_NONCE_LEN];
58 u8 alt_SNonce[WPA_NONCE_LEN];
59 u8 alt_replay_counter[WPA_REPLAY_COUNTER_LEN];
62 u8 pmkid[PMKID_LEN]; /* valid if pmkid_set == 1 */
66 Boolean tk_already_set;
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_AP
91 unsigned int ft_completed:1;
92 unsigned int pmk_r1_name_valid:1;
93 #endif /* CONFIG_IEEE80211R_AP */
94 unsigned int is_wnmsleep:1;
95 unsigned int pmkid_set:1;
97 unsigned int ocv_enabled:1;
98 #endif /* CONFIG_OCV */
100 u8 req_replay_counter[WPA_REPLAY_COUNTER_LEN];
101 int req_replay_counter_used;
107 WPA_VERSION_NO_WPA = 0 /* WPA not used */,
108 WPA_VERSION_WPA = 1 /* WPA / IEEE 802.11i/D3.0 */,
109 WPA_VERSION_WPA2 = 2 /* WPA2 / IEEE 802.11i */
111 int pairwise; /* Pairwise cipher suite, WPA_CIPHER_* */
112 int wpa_key_mgmt; /* the selected WPA_KEY_MGMT_* */
113 struct rsn_pmksa_cache_entry *pmksa;
115 u32 dot11RSNAStatsTKIPLocalMICFailures;
116 u32 dot11RSNAStatsTKIPRemoteMICFailures;
118 #ifdef CONFIG_IEEE80211R_AP
119 u8 xxkey[PMK_LEN_MAX]; /* PSK or the second 256 bits of MSK, or the
120 * first 384 bits of MSK */
122 u8 pmk_r1[PMK_LEN_MAX];
123 unsigned int pmk_r1_len;
124 u8 pmk_r1_name[WPA_PMK_NAME_LEN]; /* PMKR1Name derived from FT Auth
126 u8 r0kh_id[FT_R0KH_ID_MAX_LEN]; /* R0KH-ID from FT Auth Request */
128 u8 sup_pmk_r1_name[WPA_PMK_NAME_LEN]; /* PMKR1Name from EAPOL-Key
132 void (*ft_pending_cb)(void *ctx, const u8 *dst, const u8 *bssid,
133 u16 auth_transaction, u16 status,
134 const u8 *ies, size_t ies_len);
135 void *ft_pending_cb_ctx;
136 struct wpabuf *ft_pending_req_ies;
137 u8 ft_pending_pull_nonce[FT_RRB_NONCE_LEN];
138 u8 ft_pending_auth_transaction;
139 u8 ft_pending_current_ap[ETH_ALEN];
140 int ft_pending_pull_left_retries;
141 #endif /* CONFIG_IEEE80211R_AP */
143 int pending_1_of_4_timeout;
147 #endif /* CONFIG_P2P */
150 u8 fils_key_auth_sta[FILS_MAX_KEY_AUTH_LEN];
151 u8 fils_key_auth_ap[FILS_MAX_KEY_AUTH_LEN];
152 size_t fils_key_auth_len;
153 unsigned int fils_completed:1;
154 #endif /* CONFIG_FILS */
157 struct wpabuf *dpp_z;
158 #endif /* CONFIG_DPP2 */
160 #ifdef CONFIG_TESTING_OPTIONS
161 void (*eapol_status_cb)(void *ctx1, void *ctx2);
162 void *eapol_status_cb_ctx1;
163 void *eapol_status_cb_ctx2;
164 #endif /* CONFIG_TESTING_OPTIONS */
168 /* per group key state machine data */
170 struct wpa_group *next;
174 int GKeyDoneStations;
178 Boolean GTKAuthenticator;
179 u8 Counter[WPA_NONCE_LEN];
182 WPA_GROUP_GTK_INIT = 0,
183 WPA_GROUP_SETKEYS, WPA_GROUP_SETKEYSDONE,
184 WPA_GROUP_FATAL_FAILURE
188 u8 GTK[2][WPA_GTK_MAX_LEN];
189 u8 GNonce[WPA_NONCE_LEN];
191 Boolean first_sta_seen;
192 Boolean reject_4way_hs_for_entropy;
193 #ifdef CONFIG_IEEE80211W
194 u8 IGTK[2][WPA_IGTK_MAX_LEN];
195 int GN_igtk, GM_igtk;
196 #endif /* CONFIG_IEEE80211W */
197 /* Number of references except those in struct wpa_group->next */
198 unsigned int references;
199 unsigned int num_setup_iface;
203 struct wpa_ft_pmk_cache;
205 /* per authenticator data */
206 struct wpa_authenticator {
207 struct wpa_group *group;
209 unsigned int dot11RSNAStatsTKIPRemoteMICFailures;
210 u32 dot11RSNAAuthenticationSuiteSelected;
211 u32 dot11RSNAPairwiseCipherSelected;
212 u32 dot11RSNAGroupCipherSelected;
213 u8 dot11RSNAPMKIDUsed[PMKID_LEN];
214 u32 dot11RSNAAuthenticationSuiteRequested; /* FIX: update */
215 u32 dot11RSNAPairwiseCipherRequested; /* FIX: update */
216 u32 dot11RSNAGroupCipherRequested; /* FIX: update */
217 unsigned int dot11RSNATKIPCounterMeasuresInvoked;
218 unsigned int dot11RSNA4WayHandshakeFailures;
220 struct wpa_auth_config conf;
221 const struct wpa_auth_callbacks *cb;
229 struct rsn_pmksa_cache *pmksa;
230 struct wpa_ft_pmk_cache *ft_pmk_cache;
233 struct bitfield *ip_pool;
234 #endif /* CONFIG_P2P */
238 #ifdef CONFIG_IEEE80211R_AP
240 #define FT_REMOTE_SEQ_BACKLOG 16
241 struct ft_remote_seq_rx {
243 struct os_reltime time_offset; /* local time - offset = remote time */
245 /* accepted sequence numbers: (offset ... offset + 0x40000000]
246 * (except those in last)
247 * dropped sequence numbers: (offset - 0x40000000 ... offset]
248 * all others trigger SEQ_REQ message (except first message)
250 u32 last[FT_REMOTE_SEQ_BACKLOG];
251 unsigned int num_last;
254 struct dl_list queue; /* send nonces + rrb msgs awaiting seq resp */
257 struct ft_remote_seq_tx {
258 u32 dom; /* non zero if initialized */
262 struct ft_remote_seq {
263 struct ft_remote_seq_rx rx;
264 struct ft_remote_seq_tx tx;
267 #endif /* CONFIG_IEEE80211R_AP */
270 int wpa_write_rsn_ie(struct wpa_auth_config *conf, u8 *buf, size_t len,
272 void wpa_auth_logger(struct wpa_authenticator *wpa_auth, const u8 *addr,
273 logger_level level, const char *txt);
274 void wpa_auth_vlogger(struct wpa_authenticator *wpa_auth, const u8 *addr,
275 logger_level level, const char *fmt, ...);
276 void __wpa_send_eapol(struct wpa_authenticator *wpa_auth,
277 struct wpa_state_machine *sm, int key_info,
278 const u8 *key_rsc, const u8 *nonce,
279 const u8 *kde, size_t kde_len,
280 int keyidx, int encr, int force_version);
281 int wpa_auth_for_each_sta(struct wpa_authenticator *wpa_auth,
282 int (*cb)(struct wpa_state_machine *sm, void *ctx),
284 int wpa_auth_for_each_auth(struct wpa_authenticator *wpa_auth,
285 int (*cb)(struct wpa_authenticator *a, void *ctx),
288 #ifdef CONFIG_IEEE80211R_AP
289 int wpa_write_mdie(struct wpa_auth_config *conf, u8 *buf, size_t len);
290 int wpa_write_ftie(struct wpa_auth_config *conf, int use_sha384,
291 const u8 *r0kh_id, size_t r0kh_id_len,
292 const u8 *anonce, const u8 *snonce,
293 u8 *buf, size_t len, const u8 *subelem,
295 int wpa_auth_derive_ptk_ft(struct wpa_state_machine *sm, struct wpa_ptk *ptk);
296 struct wpa_ft_pmk_cache * wpa_ft_pmk_cache_init(void);
297 void wpa_ft_pmk_cache_deinit(struct wpa_ft_pmk_cache *cache);
298 void wpa_ft_install_ptk(struct wpa_state_machine *sm);
299 int wpa_ft_store_pmk_fils(struct wpa_state_machine *sm, const u8 *pmk_r0,
300 const u8 *pmk_r0_name);
301 #endif /* CONFIG_IEEE80211R_AP */
303 #endif /* WPA_AUTH_I_H */