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6fc6879b JM |
1 | /* |
2 | * hostapd - IEEE 802.11i-2004 / WPA Authenticator | |
3 | * Copyright (c) 2004-2007, Jouni Malinen <j@w1.fi> | |
4 | * | |
0f3d578e JM |
5 | * This software may be distributed under the terms of the BSD license. |
6 | * See README for more details. | |
6fc6879b JM |
7 | */ |
8 | ||
9 | #ifndef WPA_AUTH_H | |
10 | #define WPA_AUTH_H | |
11 | ||
90973fb2 JM |
12 | #include "common/defs.h" |
13 | #include "common/eapol_common.h" | |
14 | #include "common/wpa_common.h" | |
6fc6879b JM |
15 | |
16 | #ifdef _MSC_VER | |
17 | #pragma pack(push, 1) | |
18 | #endif /* _MSC_VER */ | |
19 | ||
c1e033b0 JM |
20 | /* IEEE Std 802.11r-2008, 11A.10.3 - Remote request/response frame definition |
21 | */ | |
6fc6879b JM |
22 | struct ft_rrb_frame { |
23 | u8 frame_type; /* RSN_REMOTE_FRAME_TYPE_FT_RRB */ | |
24 | u8 packet_type; /* FT_PACKET_REQUEST/FT_PACKET_RESPONSE */ | |
2eba45c8 | 25 | le16 action_length; /* little endian length of action_frame */ |
6fc6879b JM |
26 | u8 ap_address[ETH_ALEN]; |
27 | /* | |
28 | * Followed by action_length bytes of FT Action frame (from Category | |
29 | * field to the end of Action Frame body. | |
30 | */ | |
31 | } STRUCT_PACKED; | |
32 | ||
33 | #define RSN_REMOTE_FRAME_TYPE_FT_RRB 1 | |
34 | ||
35 | #define FT_PACKET_REQUEST 0 | |
36 | #define FT_PACKET_RESPONSE 1 | |
37 | /* Vendor-specific types for R0KH-R1KH protocol; not defined in 802.11r */ | |
38 | #define FT_PACKET_R0KH_R1KH_PULL 200 | |
39 | #define FT_PACKET_R0KH_R1KH_RESP 201 | |
40 | #define FT_PACKET_R0KH_R1KH_PUSH 202 | |
41 | ||
6fc6879b JM |
42 | #define FT_R0KH_R1KH_PULL_DATA_LEN 44 |
43 | #define FT_R0KH_R1KH_RESP_DATA_LEN 76 | |
1b484d60 | 44 | #define FT_R0KH_R1KH_PUSH_DATA_LEN 88 |
6fc6879b JM |
45 | |
46 | struct ft_r0kh_r1kh_pull_frame { | |
47 | u8 frame_type; /* RSN_REMOTE_FRAME_TYPE_FT_RRB */ | |
48 | u8 packet_type; /* FT_PACKET_R0KH_R1KH_PULL */ | |
2eba45c8 | 49 | le16 data_length; /* little endian length of data (44) */ |
6fc6879b JM |
50 | u8 ap_address[ETH_ALEN]; |
51 | ||
52 | u8 nonce[16]; | |
53 | u8 pmk_r0_name[WPA_PMK_NAME_LEN]; | |
54 | u8 r1kh_id[FT_R1KH_ID_LEN]; | |
55 | u8 s1kh_id[ETH_ALEN]; | |
56 | u8 pad[4]; /* 8-octet boundary for AES key wrap */ | |
57 | u8 key_wrap_extra[8]; | |
58 | } STRUCT_PACKED; | |
59 | ||
60 | struct ft_r0kh_r1kh_resp_frame { | |
61 | u8 frame_type; /* RSN_REMOTE_FRAME_TYPE_FT_RRB */ | |
62 | u8 packet_type; /* FT_PACKET_R0KH_R1KH_RESP */ | |
2eba45c8 | 63 | le16 data_length; /* little endian length of data (76) */ |
6fc6879b JM |
64 | u8 ap_address[ETH_ALEN]; |
65 | ||
66 | u8 nonce[16]; /* copied from pull */ | |
67 | u8 r1kh_id[FT_R1KH_ID_LEN]; /* copied from pull */ | |
68 | u8 s1kh_id[ETH_ALEN]; /* copied from pull */ | |
69 | u8 pmk_r1[PMK_LEN]; | |
70 | u8 pmk_r1_name[WPA_PMK_NAME_LEN]; | |
1b484d60 JM |
71 | le16 pairwise; |
72 | u8 pad[2]; /* 8-octet boundary for AES key wrap */ | |
6fc6879b JM |
73 | u8 key_wrap_extra[8]; |
74 | } STRUCT_PACKED; | |
75 | ||
76 | struct ft_r0kh_r1kh_push_frame { | |
77 | u8 frame_type; /* RSN_REMOTE_FRAME_TYPE_FT_RRB */ | |
78 | u8 packet_type; /* FT_PACKET_R0KH_R1KH_PUSH */ | |
1b484d60 | 79 | le16 data_length; /* little endian length of data (88) */ |
6fc6879b JM |
80 | u8 ap_address[ETH_ALEN]; |
81 | ||
82 | /* Encrypted with AES key-wrap */ | |
83 | u8 timestamp[4]; /* current time in seconds since unix epoch, little | |
84 | * endian */ | |
85 | u8 r1kh_id[FT_R1KH_ID_LEN]; | |
86 | u8 s1kh_id[ETH_ALEN]; | |
87 | u8 pmk_r0_name[WPA_PMK_NAME_LEN]; | |
88 | u8 pmk_r1[PMK_LEN]; | |
89 | u8 pmk_r1_name[WPA_PMK_NAME_LEN]; | |
1b484d60 JM |
90 | le16 pairwise; |
91 | u8 pad[6]; /* 8-octet boundary for AES key wrap */ | |
6fc6879b JM |
92 | u8 key_wrap_extra[8]; |
93 | } STRUCT_PACKED; | |
94 | ||
95 | #ifdef _MSC_VER | |
96 | #pragma pack(pop) | |
97 | #endif /* _MSC_VER */ | |
98 | ||
99 | ||
100 | /* per STA state machine data */ | |
101 | ||
102 | struct wpa_authenticator; | |
103 | struct wpa_state_machine; | |
104 | struct rsn_pmksa_cache_entry; | |
105 | struct eapol_state_machine; | |
106 | ||
107 | ||
108 | struct ft_remote_r0kh { | |
109 | struct ft_remote_r0kh *next; | |
110 | u8 addr[ETH_ALEN]; | |
111 | u8 id[FT_R0KH_ID_MAX_LEN]; | |
112 | size_t id_len; | |
113 | u8 key[16]; | |
114 | }; | |
115 | ||
116 | ||
117 | struct ft_remote_r1kh { | |
118 | struct ft_remote_r1kh *next; | |
119 | u8 addr[ETH_ALEN]; | |
120 | u8 id[FT_R1KH_ID_LEN]; | |
121 | u8 key[16]; | |
122 | }; | |
123 | ||
124 | ||
125 | struct wpa_auth_config { | |
126 | int wpa; | |
127 | int wpa_key_mgmt; | |
128 | int wpa_pairwise; | |
129 | int wpa_group; | |
130 | int wpa_group_rekey; | |
131 | int wpa_strict_rekey; | |
132 | int wpa_gmk_rekey; | |
581a8cde | 133 | int wpa_ptk_rekey; |
6fc6879b JM |
134 | int rsn_pairwise; |
135 | int rsn_preauth; | |
136 | int eapol_version; | |
137 | int peerkey; | |
3ae0800c | 138 | int wmm_enabled; |
721abef9 | 139 | int wmm_uapsd; |
cb465555 | 140 | int disable_pmksa_caching; |
bf98f7f3 | 141 | int okc; |
e4bf4db9 | 142 | int tx_status; |
6fc6879b | 143 | #ifdef CONFIG_IEEE80211W |
70f8cc8e | 144 | enum mfp_options ieee80211w; |
6fc6879b JM |
145 | #endif /* CONFIG_IEEE80211W */ |
146 | #ifdef CONFIG_IEEE80211R | |
147 | #define SSID_LEN 32 | |
148 | u8 ssid[SSID_LEN]; | |
149 | size_t ssid_len; | |
150 | u8 mobility_domain[MOBILITY_DOMAIN_ID_LEN]; | |
151 | u8 r0_key_holder[FT_R0KH_ID_MAX_LEN]; | |
152 | size_t r0_key_holder_len; | |
153 | u8 r1_key_holder[FT_R1KH_ID_LEN]; | |
154 | u32 r0_key_lifetime; | |
155 | u32 reassociation_deadline; | |
156 | struct ft_remote_r0kh *r0kh_list; | |
157 | struct ft_remote_r1kh *r1kh_list; | |
158 | int pmk_r1_push; | |
d7956add | 159 | int ft_over_ds; |
6fc6879b | 160 | #endif /* CONFIG_IEEE80211R */ |
83421850 | 161 | int disable_gtk; |
88b32a99 | 162 | int ap_mlme; |
7af092a0 JB |
163 | #ifdef CONFIG_TESTING_OPTIONS |
164 | double corrupt_gtk_rekey_mic_probability; | |
165 | #endif /* CONFIG_TESTING_OPTIONS */ | |
6fc6879b JM |
166 | }; |
167 | ||
168 | typedef enum { | |
169 | LOGGER_DEBUG, LOGGER_INFO, LOGGER_WARNING | |
170 | } logger_level; | |
171 | ||
172 | typedef enum { | |
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; | |
177 | ||
178 | struct wpa_auth_callbacks { | |
179 | void *ctx; | |
180 | void (*logger)(void *ctx, const u8 *addr, logger_level level, | |
181 | const char *txt); | |
182 | void (*disconnect)(void *ctx, const u8 *addr, u16 reason); | |
c772d054 | 183 | int (*mic_failure_report)(void *ctx, const u8 *addr); |
6fc6879b JM |
184 | void (*set_eapol)(void *ctx, const u8 *addr, wpa_eapol_variable var, |
185 | int value); | |
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); | |
71934751 JM |
189 | int (*set_key)(void *ctx, int vlan_id, enum wpa_alg alg, |
190 | const u8 *addr, int idx, u8 *key, size_t key_len); | |
6fc6879b | 191 | int (*get_seqnum)(void *ctx, const u8 *addr, int idx, u8 *seq); |
6fc6879b JM |
192 | int (*send_eapol)(void *ctx, const u8 *addr, const u8 *data, |
193 | size_t data_len, int encrypt); | |
194 | int (*for_each_sta)(void *ctx, int (*cb)(struct wpa_state_machine *sm, | |
195 | void *ctx), void *cb_ctx); | |
bf98f7f3 JM |
196 | int (*for_each_auth)(void *ctx, int (*cb)(struct wpa_authenticator *a, |
197 | void *ctx), void *cb_ctx); | |
6fc6879b JM |
198 | int (*send_ether)(void *ctx, const u8 *dst, u16 proto, const u8 *data, |
199 | size_t data_len); | |
200 | #ifdef CONFIG_IEEE80211R | |
201 | struct wpa_state_machine * (*add_sta)(void *ctx, const u8 *sta_addr); | |
202 | int (*send_ft_action)(void *ctx, const u8 *dst, | |
203 | const u8 *data, size_t data_len); | |
88b32a99 SP |
204 | int (*add_tspec)(void *ctx, const u8 *sta_addr, u8 *tspec_ie, |
205 | size_t tspec_ielen); | |
6fc6879b JM |
206 | #endif /* CONFIG_IEEE80211R */ |
207 | }; | |
208 | ||
209 | struct wpa_authenticator * wpa_init(const u8 *addr, | |
210 | struct wpa_auth_config *conf, | |
211 | struct wpa_auth_callbacks *cb); | |
bdffdc5d | 212 | int wpa_init_keys(struct wpa_authenticator *wpa_auth); |
6fc6879b JM |
213 | void wpa_deinit(struct wpa_authenticator *wpa_auth); |
214 | int wpa_reconfig(struct wpa_authenticator *wpa_auth, | |
215 | struct wpa_auth_config *conf); | |
216 | ||
217 | enum { | |
218 | WPA_IE_OK, WPA_INVALID_IE, WPA_INVALID_GROUP, WPA_INVALID_PAIRWISE, | |
219 | WPA_INVALID_AKMP, WPA_NOT_ENABLED, WPA_ALLOC_FAIL, | |
220 | WPA_MGMT_FRAME_PROTECTION_VIOLATION, WPA_INVALID_MGMT_GROUP_CIPHER, | |
2100a768 | 221 | WPA_INVALID_MDIE, WPA_INVALID_PROTO |
6fc6879b JM |
222 | }; |
223 | ||
224 | int wpa_validate_wpa_ie(struct wpa_authenticator *wpa_auth, | |
225 | struct wpa_state_machine *sm, | |
226 | const u8 *wpa_ie, size_t wpa_ie_len, | |
227 | const u8 *mdie, size_t mdie_len); | |
f3f7540e | 228 | int wpa_auth_uses_mfp(struct wpa_state_machine *sm); |
6fc6879b JM |
229 | struct wpa_state_machine * |
230 | wpa_auth_sta_init(struct wpa_authenticator *wpa_auth, const u8 *addr); | |
6f9b5d16 JM |
231 | int wpa_auth_sta_associated(struct wpa_authenticator *wpa_auth, |
232 | struct wpa_state_machine *sm); | |
a8d05fca | 233 | void wpa_auth_sta_no_wpa(struct wpa_state_machine *sm); |
6fc6879b JM |
234 | void wpa_auth_sta_deinit(struct wpa_state_machine *sm); |
235 | void wpa_receive(struct wpa_authenticator *wpa_auth, | |
236 | struct wpa_state_machine *sm, | |
237 | u8 *data, size_t data_len); | |
238 | typedef enum { | |
239 | WPA_AUTH, WPA_ASSOC, WPA_DISASSOC, WPA_DEAUTH, WPA_REAUTH, | |
240 | WPA_REAUTH_EAPOL, WPA_ASSOC_FT | |
241 | } wpa_event; | |
242 | void wpa_remove_ptk(struct wpa_state_machine *sm); | |
6f9b5d16 | 243 | int wpa_auth_sm_event(struct wpa_state_machine *sm, wpa_event event); |
6fc6879b JM |
244 | void wpa_auth_sm_notify(struct wpa_state_machine *sm); |
245 | void wpa_gtk_rekey(struct wpa_authenticator *wpa_auth); | |
246 | int wpa_get_mib(struct wpa_authenticator *wpa_auth, char *buf, size_t buflen); | |
247 | int wpa_get_mib_sta(struct wpa_state_machine *sm, char *buf, size_t buflen); | |
248 | void wpa_auth_countermeasures_start(struct wpa_authenticator *wpa_auth); | |
249 | int wpa_auth_pairwise_set(struct wpa_state_machine *sm); | |
ff36ff00 | 250 | int wpa_auth_get_pairwise(struct wpa_state_machine *sm); |
6fc6879b JM |
251 | int wpa_auth_sta_key_mgmt(struct wpa_state_machine *sm); |
252 | int wpa_auth_sta_wpa_version(struct wpa_state_machine *sm); | |
253 | int wpa_auth_sta_clear_pmksa(struct wpa_state_machine *sm, | |
254 | struct rsn_pmksa_cache_entry *entry); | |
255 | struct rsn_pmksa_cache_entry * | |
256 | wpa_auth_sta_get_pmksa(struct wpa_state_machine *sm); | |
257 | void wpa_auth_sta_local_mic_failure_report(struct wpa_state_machine *sm); | |
258 | const u8 * wpa_auth_get_wpa_ie(struct wpa_authenticator *wpa_auth, | |
259 | size_t *len); | |
260 | int wpa_auth_pmksa_add(struct wpa_state_machine *sm, const u8 *pmk, | |
261 | int session_timeout, struct eapol_state_machine *eapol); | |
262 | int wpa_auth_pmksa_add_preauth(struct wpa_authenticator *wpa_auth, | |
263 | const u8 *pmk, size_t len, const u8 *sta_addr, | |
264 | int session_timeout, | |
265 | struct eapol_state_machine *eapol); | |
266 | int wpa_auth_sta_set_vlan(struct wpa_state_machine *sm, int vlan_id); | |
e4bf4db9 JM |
267 | void wpa_auth_eapol_key_tx_status(struct wpa_authenticator *wpa_auth, |
268 | struct wpa_state_machine *sm, int ack); | |
6fc6879b JM |
269 | |
270 | #ifdef CONFIG_IEEE80211R | |
271 | u8 * wpa_sm_write_assoc_resp_ies(struct wpa_state_machine *sm, u8 *pos, | |
f238cf9f JM |
272 | size_t max_len, int auth_alg, |
273 | const u8 *req_ies, size_t req_ies_len); | |
6fc6879b JM |
274 | void wpa_ft_process_auth(struct wpa_state_machine *sm, const u8 *bssid, |
275 | u16 auth_transaction, const u8 *ies, size_t ies_len, | |
276 | void (*cb)(void *ctx, const u8 *dst, const u8 *bssid, | |
277 | u16 auth_transaction, u16 resp, | |
278 | const u8 *ies, size_t ies_len), | |
279 | void *ctx); | |
280 | u16 wpa_ft_validate_reassoc(struct wpa_state_machine *sm, const u8 *ies, | |
281 | size_t ies_len); | |
282 | int wpa_ft_action_rx(struct wpa_state_machine *sm, const u8 *data, size_t len); | |
283 | int wpa_ft_rrb_rx(struct wpa_authenticator *wpa_auth, const u8 *src_addr, | |
284 | const u8 *data, size_t data_len); | |
285 | void wpa_ft_push_pmk_r1(struct wpa_authenticator *wpa_auth, const u8 *addr); | |
286 | #endif /* CONFIG_IEEE80211R */ | |
287 | ||
d32d94db XC |
288 | void wpa_wnmsleep_rekey_gtk(struct wpa_state_machine *sm); |
289 | void wpa_set_wnmsleep(struct wpa_state_machine *sm, int flag); | |
290 | int wpa_wnmsleep_gtk_subelem(struct wpa_state_machine *sm, u8 *pos); | |
d32d94db | 291 | int wpa_wnmsleep_igtk_subelem(struct wpa_state_machine *sm, u8 *pos); |
d32d94db | 292 | |
c10347f2 JM |
293 | int wpa_auth_uses_sae(struct wpa_state_machine *sm); |
294 | ||
6fc6879b | 295 | #endif /* WPA_AUTH_H */ |