2 * wpa_supplicant - Internal WPA state machine definitions
3 * Copyright (c) 2004-2007, Jouni Malinen <j@w1.fi>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
9 * Alternatively, this software may be distributed under the terms of BSD
12 * See README and COPYING for more details.
18 struct rsn_pmksa_candidate;
23 * struct wpa_sm - Internal WPA state machine data
28 struct wpa_ptk ptk, tptk;
29 int ptk_set, tptk_set;
30 u8 snonce[WPA_NONCE_LEN];
31 u8 anonce[WPA_NONCE_LEN]; /* ANonce from the last 1/4 msg */
33 u8 rx_replay_counter[WPA_REPLAY_COUNTER_LEN];
34 int rx_replay_counter_set;
35 u8 request_counter[WPA_REPLAY_COUNTER_LEN];
37 struct eapol_sm *eapol; /* EAPOL state machine from upper level code */
39 struct rsn_pmksa_cache *pmksa; /* PMKSA cache */
40 struct rsn_pmksa_cache_entry *cur_pmksa; /* current PMKSA entry */
41 struct rsn_pmksa_candidate *pmksa_candidates;
43 struct l2_packet_data *l2_preauth;
44 struct l2_packet_data *l2_preauth_br;
45 u8 preauth_bssid[ETH_ALEN]; /* current RSN pre-auth peer or
46 * 00:00:00:00:00:00 if no pre-auth is
48 struct eapol_sm *preauth_eapol;
50 struct wpa_sm_ctx *ctx;
52 void *scard_ctx; /* context for smartcard callbacks */
53 int fast_reauth; /* whether EAP fast re-authentication is enabled */
57 int allowed_pairwise_cipher; /* bitfield of WPA_CIPHER_* */
58 int proactive_key_caching;
64 u8 own_addr[ETH_ALEN];
66 const char *bridge_ifname;
69 unsigned int dot11RSNAConfigPMKLifetime;
70 unsigned int dot11RSNAConfigPMKReauthThreshold;
71 unsigned int dot11RSNAConfigSATimeout;
73 unsigned int dot11RSNA4WayHandshakeFailures;
75 /* Selected configuration (based on Beacon/ProbeResp WPA IE) */
77 unsigned int pairwise_cipher;
78 unsigned int group_cipher;
79 unsigned int key_mgmt;
80 unsigned int mgmt_group_cipher;
82 int rsn_enabled; /* Whether RSN is enabled in configuration */
84 u8 *assoc_wpa_ie; /* Own WPA/RSN IE from (Re)AssocReq */
85 size_t assoc_wpa_ie_len;
86 u8 *ap_wpa_ie, *ap_rsn_ie;
87 size_t ap_wpa_ie_len, ap_rsn_ie_len;
90 struct wpa_peerkey *peerkey;
91 #endif /* CONFIG_PEERKEY */
93 #ifdef CONFIG_IEEE80211R
94 u8 xxkey[PMK_LEN]; /* PSK or the second 256 bits of MSK */
97 u8 pmk_r0_name[WPA_PMK_NAME_LEN];
99 u8 pmk_r1_name[WPA_PMK_NAME_LEN];
100 u8 mobility_domain[MOBILITY_DOMAIN_ID_LEN];
101 u8 r0kh_id[FT_R0KH_ID_MAX_LEN];
103 u8 r1kh_id[FT_R1KH_ID_LEN];
105 int over_the_ds_in_progress;
106 u8 target_ap[ETH_ALEN]; /* over-the-DS target AP */
107 #endif /* CONFIG_IEEE80211R */
111 static inline void wpa_sm_set_state(struct wpa_sm *sm, wpa_states state)
113 WPA_ASSERT(sm->ctx->set_state);
114 sm->ctx->set_state(sm->ctx->ctx, state);
117 static inline wpa_states wpa_sm_get_state(struct wpa_sm *sm)
119 WPA_ASSERT(sm->ctx->get_state);
120 return sm->ctx->get_state(sm->ctx->ctx);
123 static inline void wpa_sm_req_scan(struct wpa_sm *sm, int sec, int usec)
125 WPA_ASSERT(sm->ctx->req_scan);
126 sm->ctx->req_scan(sm->ctx->ctx, sec, usec);
129 static inline void wpa_sm_cancel_scan(struct wpa_sm *sm)
131 WPA_ASSERT(sm->ctx->cancel_scan);
132 sm->ctx->cancel_scan(sm->ctx->ctx);
135 static inline void wpa_sm_deauthenticate(struct wpa_sm *sm, int reason_code)
137 WPA_ASSERT(sm->ctx->deauthenticate);
138 sm->ctx->deauthenticate(sm->ctx->ctx, reason_code);
141 static inline void wpa_sm_disassociate(struct wpa_sm *sm, int reason_code)
143 WPA_ASSERT(sm->ctx->disassociate);
144 sm->ctx->disassociate(sm->ctx->ctx, reason_code);
147 static inline int wpa_sm_set_key(struct wpa_sm *sm, wpa_alg alg,
148 const u8 *addr, int key_idx, int set_tx,
149 const u8 *seq, size_t seq_len,
150 const u8 *key, size_t key_len)
152 WPA_ASSERT(sm->ctx->set_key);
153 return sm->ctx->set_key(sm->ctx->ctx, alg, addr, key_idx, set_tx,
154 seq, seq_len, key, key_len);
157 static inline void * wpa_sm_get_network_ctx(struct wpa_sm *sm)
159 WPA_ASSERT(sm->ctx->get_network_ctx);
160 return sm->ctx->get_network_ctx(sm->ctx->ctx);
163 static inline int wpa_sm_get_bssid(struct wpa_sm *sm, u8 *bssid)
165 WPA_ASSERT(sm->ctx->get_bssid);
166 return sm->ctx->get_bssid(sm->ctx->ctx, bssid);
169 static inline int wpa_sm_ether_send(struct wpa_sm *sm, const u8 *dest,
170 u16 proto, const u8 *buf, size_t len)
172 WPA_ASSERT(sm->ctx->ether_send);
173 return sm->ctx->ether_send(sm->ctx->ctx, dest, proto, buf, len);
176 static inline int wpa_sm_get_beacon_ie(struct wpa_sm *sm)
178 WPA_ASSERT(sm->ctx->get_beacon_ie);
179 return sm->ctx->get_beacon_ie(sm->ctx->ctx);
182 static inline void wpa_sm_cancel_auth_timeout(struct wpa_sm *sm)
184 WPA_ASSERT(sm->ctx->cancel_auth_timeout);
185 sm->ctx->cancel_auth_timeout(sm->ctx->ctx);
188 static inline u8 * wpa_sm_alloc_eapol(struct wpa_sm *sm, u8 type,
189 const void *data, u16 data_len,
190 size_t *msg_len, void **data_pos)
192 WPA_ASSERT(sm->ctx->alloc_eapol);
193 return sm->ctx->alloc_eapol(sm->ctx->ctx, type, data, data_len,
197 static inline int wpa_sm_add_pmkid(struct wpa_sm *sm, const u8 *bssid,
200 WPA_ASSERT(sm->ctx->add_pmkid);
201 return sm->ctx->add_pmkid(sm->ctx->ctx, bssid, pmkid);
204 static inline int wpa_sm_remove_pmkid(struct wpa_sm *sm, const u8 *bssid,
207 WPA_ASSERT(sm->ctx->remove_pmkid);
208 return sm->ctx->remove_pmkid(sm->ctx->ctx, bssid, pmkid);
211 static inline int wpa_sm_mlme_setprotection(struct wpa_sm *sm, const u8 *addr,
212 int protect_type, int key_type)
214 WPA_ASSERT(sm->ctx->mlme_setprotection);
215 return sm->ctx->mlme_setprotection(sm->ctx->ctx, addr, protect_type,
219 static inline int wpa_sm_update_ft_ies(struct wpa_sm *sm, const u8 *md,
220 const u8 *ies, size_t ies_len)
222 if (sm->ctx->update_ft_ies)
223 return sm->ctx->update_ft_ies(sm->ctx->ctx, md, ies, ies_len);
227 static inline int wpa_sm_send_ft_action(struct wpa_sm *sm, u8 action,
229 const u8 *ies, size_t ies_len)
231 if (sm->ctx->send_ft_action)
232 return sm->ctx->send_ft_action(sm->ctx->ctx, action, target_ap,
238 void wpa_eapol_key_send(struct wpa_sm *sm, const u8 *kck,
239 int ver, const u8 *dest, u16 proto,
240 u8 *msg, size_t msg_len, u8 *key_mic);
241 int wpa_supplicant_send_2_of_4(struct wpa_sm *sm, const unsigned char *dst,
242 const struct wpa_eapol_key *key,
243 int ver, const u8 *nonce,
244 const u8 *wpa_ie, size_t wpa_ie_len,
245 struct wpa_ptk *ptk);
246 int wpa_supplicant_send_4_of_4(struct wpa_sm *sm, const unsigned char *dst,
247 const struct wpa_eapol_key *key,
248 u16 ver, u16 key_info,
249 const u8 *kde, size_t kde_len,
250 struct wpa_ptk *ptk);
252 int wpa_derive_ptk_ft(struct wpa_sm *sm, const unsigned char *src_addr,
253 const struct wpa_eapol_key *key,
254 struct wpa_ptk *ptk);