2 * hostapd - IEEE 802.11i-2004 / WPA Authenticator
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 #include "eapol_common.h"
19 #include "wpa_common.h"
25 /* IEEE Std 802.11r-2008, 11A.10.3 - Remote request/response frame definition
28 u8 frame_type; /* RSN_REMOTE_FRAME_TYPE_FT_RRB */
29 u8 packet_type; /* FT_PACKET_REQUEST/FT_PACKET_RESPONSE */
30 u16 action_length; /* little endian length of action_frame */
31 u8 ap_address[ETH_ALEN];
33 * Followed by action_length bytes of FT Action frame (from Category
34 * field to the end of Action Frame body.
38 #define RSN_REMOTE_FRAME_TYPE_FT_RRB 1
40 #define FT_PACKET_REQUEST 0
41 #define FT_PACKET_RESPONSE 1
42 /* Vendor-specific types for R0KH-R1KH protocol; not defined in 802.11r */
43 #define FT_PACKET_R0KH_R1KH_PULL 200
44 #define FT_PACKET_R0KH_R1KH_RESP 201
45 #define FT_PACKET_R0KH_R1KH_PUSH 202
48 #define ETH_P_RRB 0x890D
49 #endif /* ETH_P_RRB */
51 #define FT_R0KH_R1KH_PULL_DATA_LEN 44
52 #define FT_R0KH_R1KH_RESP_DATA_LEN 76
53 #define FT_R0KH_R1KH_PUSH_DATA_LEN 80
55 struct ft_r0kh_r1kh_pull_frame {
56 u8 frame_type; /* RSN_REMOTE_FRAME_TYPE_FT_RRB */
57 u8 packet_type; /* FT_PACKET_R0KH_R1KH_PULL */
58 u16 data_length; /* little endian length of data (44) */
59 u8 ap_address[ETH_ALEN];
62 u8 pmk_r0_name[WPA_PMK_NAME_LEN];
63 u8 r1kh_id[FT_R1KH_ID_LEN];
65 u8 pad[4]; /* 8-octet boundary for AES key wrap */
69 struct ft_r0kh_r1kh_resp_frame {
70 u8 frame_type; /* RSN_REMOTE_FRAME_TYPE_FT_RRB */
71 u8 packet_type; /* FT_PACKET_R0KH_R1KH_RESP */
72 u16 data_length; /* little endian length of data (76) */
73 u8 ap_address[ETH_ALEN];
75 u8 nonce[16]; /* copied from pull */
76 u8 r1kh_id[FT_R1KH_ID_LEN]; /* copied from pull */
77 u8 s1kh_id[ETH_ALEN]; /* copied from pull */
79 u8 pmk_r1_name[WPA_PMK_NAME_LEN];
80 u8 pad[4]; /* 8-octet boundary for AES key wrap */
84 struct ft_r0kh_r1kh_push_frame {
85 u8 frame_type; /* RSN_REMOTE_FRAME_TYPE_FT_RRB */
86 u8 packet_type; /* FT_PACKET_R0KH_R1KH_PUSH */
87 u16 data_length; /* little endian length of data (80) */
88 u8 ap_address[ETH_ALEN];
90 /* Encrypted with AES key-wrap */
91 u8 timestamp[4]; /* current time in seconds since unix epoch, little
93 u8 r1kh_id[FT_R1KH_ID_LEN];
95 u8 pmk_r0_name[WPA_PMK_NAME_LEN];
97 u8 pmk_r1_name[WPA_PMK_NAME_LEN];
103 #endif /* _MSC_VER */
106 /* per STA state machine data */
108 struct wpa_authenticator;
109 struct wpa_state_machine;
110 struct rsn_pmksa_cache_entry;
111 struct eapol_state_machine;
114 struct ft_remote_r0kh {
115 struct ft_remote_r0kh *next;
117 u8 id[FT_R0KH_ID_MAX_LEN];
123 struct ft_remote_r1kh {
124 struct ft_remote_r1kh *next;
126 u8 id[FT_R1KH_ID_LEN];
131 struct wpa_auth_config {
137 int wpa_strict_rekey;
145 #ifdef CONFIG_IEEE80211W
147 WPA_NO_IEEE80211W = 0,
148 WPA_IEEE80211W_OPTIONAL = 1,
149 WPA_IEEE80211W_REQUIRED = 2
151 #endif /* CONFIG_IEEE80211W */
152 #ifdef CONFIG_IEEE80211R
156 u8 mobility_domain[MOBILITY_DOMAIN_ID_LEN];
157 u8 r0_key_holder[FT_R0KH_ID_MAX_LEN];
158 size_t r0_key_holder_len;
159 u8 r1_key_holder[FT_R1KH_ID_LEN];
161 u32 reassociation_deadline;
162 struct ft_remote_r0kh *r0kh_list;
163 struct ft_remote_r1kh *r1kh_list;
165 #endif /* CONFIG_IEEE80211R */
169 LOGGER_DEBUG, LOGGER_INFO, LOGGER_WARNING
173 WPA_EAPOL_portEnabled, WPA_EAPOL_portValid, WPA_EAPOL_authorized,
174 WPA_EAPOL_portControl_Auto, WPA_EAPOL_keyRun, WPA_EAPOL_keyAvailable,
175 WPA_EAPOL_keyDone, WPA_EAPOL_inc_EapolFramesTx
176 } wpa_eapol_variable;
178 struct wpa_auth_callbacks {
180 void (*logger)(void *ctx, const u8 *addr, logger_level level,
182 void (*disconnect)(void *ctx, const u8 *addr, u16 reason);
183 void (*mic_failure_report)(void *ctx, const u8 *addr);
184 void (*set_eapol)(void *ctx, const u8 *addr, wpa_eapol_variable var,
186 int (*get_eapol)(void *ctx, const u8 *addr, wpa_eapol_variable var);
187 const u8 * (*get_psk)(void *ctx, const u8 *addr, const u8 *prev_psk);
188 int (*get_msk)(void *ctx, const u8 *addr, u8 *msk, size_t *len);
189 int (*set_key)(void *ctx, int vlan_id, const char *alg, const u8 *addr,
190 int idx, u8 *key, size_t key_len);
191 int (*get_seqnum)(void *ctx, const u8 *addr, int idx, u8 *seq);
192 int (*get_seqnum_igtk)(void *ctx, const u8 *addr, int idx, u8 *seq);
193 int (*send_eapol)(void *ctx, const u8 *addr, const u8 *data,
194 size_t data_len, int encrypt);
195 int (*for_each_sta)(void *ctx, int (*cb)(struct wpa_state_machine *sm,
196 void *ctx), void *cb_ctx);
197 int (*for_each_auth)(void *ctx, int (*cb)(struct wpa_authenticator *a,
198 void *ctx), void *cb_ctx);
199 int (*send_ether)(void *ctx, const u8 *dst, u16 proto, const u8 *data,
201 #ifdef CONFIG_IEEE80211R
202 struct wpa_state_machine * (*add_sta)(void *ctx, const u8 *sta_addr);
203 int (*send_ft_action)(void *ctx, const u8 *dst,
204 const u8 *data, size_t data_len);
205 #endif /* CONFIG_IEEE80211R */
208 struct wpa_authenticator * wpa_init(const u8 *addr,
209 struct wpa_auth_config *conf,
210 struct wpa_auth_callbacks *cb);
211 void wpa_deinit(struct wpa_authenticator *wpa_auth);
212 int wpa_reconfig(struct wpa_authenticator *wpa_auth,
213 struct wpa_auth_config *conf);
216 WPA_IE_OK, WPA_INVALID_IE, WPA_INVALID_GROUP, WPA_INVALID_PAIRWISE,
217 WPA_INVALID_AKMP, WPA_NOT_ENABLED, WPA_ALLOC_FAIL,
218 WPA_MGMT_FRAME_PROTECTION_VIOLATION, WPA_INVALID_MGMT_GROUP_CIPHER,
219 WPA_INVALID_MDIE, WPA_INVALID_PROTO
222 int wpa_validate_wpa_ie(struct wpa_authenticator *wpa_auth,
223 struct wpa_state_machine *sm,
224 const u8 *wpa_ie, size_t wpa_ie_len,
225 const u8 *mdie, size_t mdie_len);
226 int wpa_auth_uses_mfp(struct wpa_state_machine *sm);
227 struct wpa_state_machine *
228 wpa_auth_sta_init(struct wpa_authenticator *wpa_auth, const u8 *addr);
229 void wpa_auth_sta_associated(struct wpa_authenticator *wpa_auth,
230 struct wpa_state_machine *sm);
231 void wpa_auth_sta_deinit(struct wpa_state_machine *sm);
232 void wpa_receive(struct wpa_authenticator *wpa_auth,
233 struct wpa_state_machine *sm,
234 u8 *data, size_t data_len);
236 WPA_AUTH, WPA_ASSOC, WPA_DISASSOC, WPA_DEAUTH, WPA_REAUTH,
237 WPA_REAUTH_EAPOL, WPA_ASSOC_FT
239 void wpa_remove_ptk(struct wpa_state_machine *sm);
240 void wpa_auth_sm_event(struct wpa_state_machine *sm, wpa_event event);
241 void wpa_auth_sm_notify(struct wpa_state_machine *sm);
242 void wpa_gtk_rekey(struct wpa_authenticator *wpa_auth);
243 int wpa_get_mib(struct wpa_authenticator *wpa_auth, char *buf, size_t buflen);
244 int wpa_get_mib_sta(struct wpa_state_machine *sm, char *buf, size_t buflen);
245 void wpa_auth_countermeasures_start(struct wpa_authenticator *wpa_auth);
246 int wpa_auth_pairwise_set(struct wpa_state_machine *sm);
247 int wpa_auth_sta_key_mgmt(struct wpa_state_machine *sm);
248 int wpa_auth_sta_wpa_version(struct wpa_state_machine *sm);
249 int wpa_auth_sta_clear_pmksa(struct wpa_state_machine *sm,
250 struct rsn_pmksa_cache_entry *entry);
251 struct rsn_pmksa_cache_entry *
252 wpa_auth_sta_get_pmksa(struct wpa_state_machine *sm);
253 void wpa_auth_sta_local_mic_failure_report(struct wpa_state_machine *sm);
254 const u8 * wpa_auth_get_wpa_ie(struct wpa_authenticator *wpa_auth,
256 int wpa_auth_pmksa_add(struct wpa_state_machine *sm, const u8 *pmk,
257 int session_timeout, struct eapol_state_machine *eapol);
258 int wpa_auth_pmksa_add_preauth(struct wpa_authenticator *wpa_auth,
259 const u8 *pmk, size_t len, const u8 *sta_addr,
261 struct eapol_state_machine *eapol);
262 int wpa_auth_sta_set_vlan(struct wpa_state_machine *sm, int vlan_id);
264 #ifdef CONFIG_IEEE80211R
265 u8 * wpa_sm_write_assoc_resp_ies(struct wpa_state_machine *sm, u8 *pos,
266 size_t max_len, int auth_alg);
267 void wpa_ft_process_auth(struct wpa_state_machine *sm, const u8 *bssid,
268 u16 auth_transaction, const u8 *ies, size_t ies_len,
269 void (*cb)(void *ctx, const u8 *dst, const u8 *bssid,
270 u16 auth_transaction, u16 resp,
271 const u8 *ies, size_t ies_len),
273 u16 wpa_ft_validate_reassoc(struct wpa_state_machine *sm, const u8 *ies,
275 int wpa_ft_action_rx(struct wpa_state_machine *sm, const u8 *data, size_t len);
276 int wpa_ft_rrb_rx(struct wpa_authenticator *wpa_auth, const u8 *src_addr,
277 const u8 *data, size_t data_len);
278 void wpa_ft_push_pmk_r1(struct wpa_authenticator *wpa_auth, const u8 *addr);
279 #endif /* CONFIG_IEEE80211R */
281 #endif /* WPA_AUTH_H */