Disconnect hostapd from building in base
[dragonfly.git] / contrib / hostapd / src / rsn_supp / wpa_i.h
1 /*
2  * Internal WPA/RSN supplicant state machine definitions
3  * Copyright (c) 2004-2010, Jouni Malinen <j@w1.fi>
4  *
5  * This software may be distributed under the terms of the BSD license.
6  * See README for more details.
7  */
8
9 #ifndef WPA_I_H
10 #define WPA_I_H
11
12 #include "utils/list.h"
13
14 struct wpa_peerkey;
15 struct wpa_tdls_peer;
16 struct wpa_eapol_key;
17
18 /**
19  * struct wpa_sm - Internal WPA state machine data
20  */
21 struct wpa_sm {
22         u8 pmk[PMK_LEN];
23         size_t pmk_len;
24         struct wpa_ptk ptk, tptk;
25         int ptk_set, tptk_set;
26         u8 snonce[WPA_NONCE_LEN];
27         u8 anonce[WPA_NONCE_LEN]; /* ANonce from the last 1/4 msg */
28         int renew_snonce;
29         u8 rx_replay_counter[WPA_REPLAY_COUNTER_LEN];
30         int rx_replay_counter_set;
31         u8 request_counter[WPA_REPLAY_COUNTER_LEN];
32
33         struct eapol_sm *eapol; /* EAPOL state machine from upper level code */
34
35         struct rsn_pmksa_cache *pmksa; /* PMKSA cache */
36         struct rsn_pmksa_cache_entry *cur_pmksa; /* current PMKSA entry */
37         struct dl_list pmksa_candidates;
38
39         struct l2_packet_data *l2_preauth;
40         struct l2_packet_data *l2_preauth_br;
41         struct l2_packet_data *l2_tdls;
42         u8 preauth_bssid[ETH_ALEN]; /* current RSN pre-auth peer or
43                                      * 00:00:00:00:00:00 if no pre-auth is
44                                      * in progress */
45         struct eapol_sm *preauth_eapol;
46
47         struct wpa_sm_ctx *ctx;
48
49         void *scard_ctx; /* context for smartcard callbacks */
50         int fast_reauth; /* whether EAP fast re-authentication is enabled */
51
52         void *network_ctx;
53         int peerkey_enabled;
54         int allowed_pairwise_cipher; /* bitfield of WPA_CIPHER_* */
55         int proactive_key_caching;
56         int eap_workaround;
57         void *eap_conf_ctx;
58         u8 ssid[32];
59         size_t ssid_len;
60         int wpa_ptk_rekey;
61         int p2p;
62
63         u8 own_addr[ETH_ALEN];
64         const char *ifname;
65         const char *bridge_ifname;
66         u8 bssid[ETH_ALEN];
67
68         unsigned int dot11RSNAConfigPMKLifetime;
69         unsigned int dot11RSNAConfigPMKReauthThreshold;
70         unsigned int dot11RSNAConfigSATimeout;
71
72         unsigned int dot11RSNA4WayHandshakeFailures;
73
74         /* Selected configuration (based on Beacon/ProbeResp WPA IE) */
75         unsigned int proto;
76         unsigned int pairwise_cipher;
77         unsigned int group_cipher;
78         unsigned int key_mgmt;
79         unsigned int mgmt_group_cipher;
80
81         int rsn_enabled; /* Whether RSN is enabled in configuration */
82         int mfp; /* 0 = disabled, 1 = optional, 2 = mandatory */
83
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;
88
89 #ifdef CONFIG_PEERKEY
90         struct wpa_peerkey *peerkey;
91 #endif /* CONFIG_PEERKEY */
92 #ifdef CONFIG_TDLS
93         struct wpa_tdls_peer *tdls;
94         int tdls_prohibited;
95         int tdls_disabled;
96
97         /* The driver supports TDLS */
98         int tdls_supported;
99
100         /*
101          * The driver requires explicit discovery/setup/teardown frames sent
102          * to it via tdls_mgmt.
103          */
104         int tdls_external_setup;
105 #endif /* CONFIG_TDLS */
106
107 #ifdef CONFIG_IEEE80211R
108         u8 xxkey[PMK_LEN]; /* PSK or the second 256 bits of MSK */
109         size_t xxkey_len;
110         u8 pmk_r0[PMK_LEN];
111         u8 pmk_r0_name[WPA_PMK_NAME_LEN];
112         u8 pmk_r1[PMK_LEN];
113         u8 pmk_r1_name[WPA_PMK_NAME_LEN];
114         u8 mobility_domain[MOBILITY_DOMAIN_ID_LEN];
115         u8 r0kh_id[FT_R0KH_ID_MAX_LEN];
116         size_t r0kh_id_len;
117         u8 r1kh_id[FT_R1KH_ID_LEN];
118         int ft_completed;
119         int over_the_ds_in_progress;
120         u8 target_ap[ETH_ALEN]; /* over-the-DS target AP */
121         int set_ptk_after_assoc;
122         u8 mdie_ft_capab; /* FT Capability and Policy from target AP MDIE */
123         u8 *assoc_resp_ies; /* MDIE and FTIE from (Re)Association Response */
124         size_t assoc_resp_ies_len;
125 #endif /* CONFIG_IEEE80211R */
126
127 #ifdef CONFIG_P2P
128         u8 p2p_ip_addr[3 * 4];
129 #endif /* CONFIG_P2P */
130 };
131
132
133 static inline void wpa_sm_set_state(struct wpa_sm *sm, enum wpa_states state)
134 {
135         WPA_ASSERT(sm->ctx->set_state);
136         sm->ctx->set_state(sm->ctx->ctx, state);
137 }
138
139 static inline enum wpa_states wpa_sm_get_state(struct wpa_sm *sm)
140 {
141         WPA_ASSERT(sm->ctx->get_state);
142         return sm->ctx->get_state(sm->ctx->ctx);
143 }
144
145 static inline void wpa_sm_deauthenticate(struct wpa_sm *sm, int reason_code)
146 {
147         WPA_ASSERT(sm->ctx->deauthenticate);
148         sm->ctx->deauthenticate(sm->ctx->ctx, reason_code);
149 }
150
151 static inline int wpa_sm_set_key(struct wpa_sm *sm, enum wpa_alg alg,
152                                  const u8 *addr, int key_idx, int set_tx,
153                                  const u8 *seq, size_t seq_len,
154                                  const u8 *key, size_t key_len)
155 {
156         WPA_ASSERT(sm->ctx->set_key);
157         return sm->ctx->set_key(sm->ctx->ctx, alg, addr, key_idx, set_tx,
158                                 seq, seq_len, key, key_len);
159 }
160
161 static inline void * wpa_sm_get_network_ctx(struct wpa_sm *sm)
162 {
163         WPA_ASSERT(sm->ctx->get_network_ctx);
164         return sm->ctx->get_network_ctx(sm->ctx->ctx);
165 }
166
167 static inline int wpa_sm_get_bssid(struct wpa_sm *sm, u8 *bssid)
168 {
169         WPA_ASSERT(sm->ctx->get_bssid);
170         return sm->ctx->get_bssid(sm->ctx->ctx, bssid);
171 }
172
173 static inline int wpa_sm_ether_send(struct wpa_sm *sm, const u8 *dest,
174                                     u16 proto, const u8 *buf, size_t len)
175 {
176         WPA_ASSERT(sm->ctx->ether_send);
177         return sm->ctx->ether_send(sm->ctx->ctx, dest, proto, buf, len);
178 }
179
180 static inline int wpa_sm_get_beacon_ie(struct wpa_sm *sm)
181 {
182         WPA_ASSERT(sm->ctx->get_beacon_ie);
183         return sm->ctx->get_beacon_ie(sm->ctx->ctx);
184 }
185
186 static inline void wpa_sm_cancel_auth_timeout(struct wpa_sm *sm)
187 {
188         WPA_ASSERT(sm->ctx->cancel_auth_timeout);
189         sm->ctx->cancel_auth_timeout(sm->ctx->ctx);
190 }
191
192 static inline u8 * wpa_sm_alloc_eapol(struct wpa_sm *sm, u8 type,
193                                       const void *data, u16 data_len,
194                                       size_t *msg_len, void **data_pos)
195 {
196         WPA_ASSERT(sm->ctx->alloc_eapol);
197         return sm->ctx->alloc_eapol(sm->ctx->ctx, type, data, data_len,
198                                     msg_len, data_pos);
199 }
200
201 static inline int wpa_sm_add_pmkid(struct wpa_sm *sm, const u8 *bssid,
202                                    const u8 *pmkid)
203 {
204         WPA_ASSERT(sm->ctx->add_pmkid);
205         return sm->ctx->add_pmkid(sm->ctx->ctx, bssid, pmkid);
206 }
207
208 static inline int wpa_sm_remove_pmkid(struct wpa_sm *sm, const u8 *bssid,
209                                       const u8 *pmkid)
210 {
211         WPA_ASSERT(sm->ctx->remove_pmkid);
212         return sm->ctx->remove_pmkid(sm->ctx->ctx, bssid, pmkid);
213 }
214
215 static inline int wpa_sm_mlme_setprotection(struct wpa_sm *sm, const u8 *addr,
216                                             int protect_type, int key_type)
217 {
218         WPA_ASSERT(sm->ctx->mlme_setprotection);
219         return sm->ctx->mlme_setprotection(sm->ctx->ctx, addr, protect_type,
220                                            key_type);
221 }
222
223 static inline int wpa_sm_update_ft_ies(struct wpa_sm *sm, const u8 *md,
224                                        const u8 *ies, size_t ies_len)
225 {
226         if (sm->ctx->update_ft_ies)
227                 return sm->ctx->update_ft_ies(sm->ctx->ctx, md, ies, ies_len);
228         return -1;
229 }
230
231 static inline int wpa_sm_send_ft_action(struct wpa_sm *sm, u8 action,
232                                         const u8 *target_ap,
233                                         const u8 *ies, size_t ies_len)
234 {
235         if (sm->ctx->send_ft_action)
236                 return sm->ctx->send_ft_action(sm->ctx->ctx, action, target_ap,
237                                                ies, ies_len);
238         return -1;
239 }
240
241 static inline int wpa_sm_mark_authenticated(struct wpa_sm *sm,
242                                             const u8 *target_ap)
243 {
244         if (sm->ctx->mark_authenticated)
245                 return sm->ctx->mark_authenticated(sm->ctx->ctx, target_ap);
246         return -1;
247 }
248
249 static inline void wpa_sm_set_rekey_offload(struct wpa_sm *sm)
250 {
251         if (!sm->ctx->set_rekey_offload)
252                 return;
253         sm->ctx->set_rekey_offload(sm->ctx->ctx, sm->ptk.kek,
254                                    sm->ptk.kck, sm->rx_replay_counter);
255 }
256
257 #ifdef CONFIG_TDLS
258 static inline int wpa_sm_tdls_get_capa(struct wpa_sm *sm,
259                                        int *tdls_supported,
260                                        int *tdls_ext_setup)
261 {
262         if (sm->ctx->tdls_get_capa)
263                 return sm->ctx->tdls_get_capa(sm->ctx->ctx, tdls_supported,
264                                               tdls_ext_setup);
265         return -1;
266 }
267
268 static inline int wpa_sm_send_tdls_mgmt(struct wpa_sm *sm, const u8 *dst,
269                                         u8 action_code, u8 dialog_token,
270                                         u16 status_code, const u8 *buf,
271                                         size_t len)
272 {
273         if (sm->ctx->send_tdls_mgmt)
274                 return sm->ctx->send_tdls_mgmt(sm->ctx->ctx, dst, action_code,
275                                                dialog_token, status_code,
276                                                buf, len);
277         return -1;
278 }
279
280 static inline int wpa_sm_tdls_oper(struct wpa_sm *sm, int oper,
281                                    const u8 *peer)
282 {
283         if (sm->ctx->tdls_oper)
284                 return sm->ctx->tdls_oper(sm->ctx->ctx, oper, peer);
285         return -1;
286 }
287
288 static inline int
289 wpa_sm_tdls_peer_addset(struct wpa_sm *sm, const u8 *addr, int add,
290                         u16 aid, u16 capability, const u8 *supp_rates,
291                         size_t supp_rates_len,
292                         const struct ieee80211_ht_capabilities *ht_capab,
293                         const struct ieee80211_vht_capabilities *vht_capab,
294                         u8 qosinfo, const u8 *ext_capab, size_t ext_capab_len,
295                         const u8 *supp_channels, size_t supp_channels_len,
296                         const u8 *supp_oper_classes,
297                         size_t supp_oper_classes_len)
298 {
299         if (sm->ctx->tdls_peer_addset)
300                 return sm->ctx->tdls_peer_addset(sm->ctx->ctx, addr, add,
301                                                  aid, capability, supp_rates,
302                                                  supp_rates_len, ht_capab,
303                                                  vht_capab, qosinfo,
304                                                  ext_capab, ext_capab_len,
305                                                  supp_channels,
306                                                  supp_channels_len,
307                                                  supp_oper_classes,
308                                                  supp_oper_classes_len);
309         return -1;
310 }
311 #endif /* CONFIG_TDLS */
312
313 void wpa_eapol_key_send(struct wpa_sm *sm, const u8 *kck,
314                         int ver, const u8 *dest, u16 proto,
315                         u8 *msg, size_t msg_len, u8 *key_mic);
316 int wpa_supplicant_send_2_of_4(struct wpa_sm *sm, const unsigned char *dst,
317                                const struct wpa_eapol_key *key,
318                                int ver, const u8 *nonce,
319                                const u8 *wpa_ie, size_t wpa_ie_len,
320                                struct wpa_ptk *ptk);
321 int wpa_supplicant_send_4_of_4(struct wpa_sm *sm, const unsigned char *dst,
322                                const struct wpa_eapol_key *key,
323                                u16 ver, u16 key_info,
324                                const u8 *kde, size_t kde_len,
325                                struct wpa_ptk *ptk);
326
327 int wpa_derive_ptk_ft(struct wpa_sm *sm, const unsigned char *src_addr,
328                       const struct wpa_eapol_key *key,
329                       struct wpa_ptk *ptk, size_t ptk_len);
330
331 void wpa_tdls_assoc(struct wpa_sm *sm);
332 void wpa_tdls_disassoc(struct wpa_sm *sm);
333
334 #endif /* WPA_I_H */