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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 | * | |
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. | |
8 | * | |
9 | * Alternatively, this software may be distributed under the terms of BSD | |
10 | * license. | |
11 | * | |
12 | * See README and COPYING for more details. | |
13 | */ | |
14 | ||
15 | #ifndef WPA_AUTH_H | |
16 | #define WPA_AUTH_H | |
17 | ||
18 | #include "eapol_common.h" | |
19 | #include "wpa_common.h" | |
20 | ||
21 | #ifdef _MSC_VER | |
22 | #pragma pack(push, 1) | |
23 | #endif /* _MSC_VER */ | |
24 | ||
c1e033b0 JM |
25 | /* IEEE Std 802.11r-2008, 11A.10.3 - Remote request/response frame definition |
26 | */ | |
6fc6879b JM |
27 | struct ft_rrb_frame { |
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]; | |
32 | /* | |
33 | * Followed by action_length bytes of FT Action frame (from Category | |
34 | * field to the end of Action Frame body. | |
35 | */ | |
36 | } STRUCT_PACKED; | |
37 | ||
38 | #define RSN_REMOTE_FRAME_TYPE_FT_RRB 1 | |
39 | ||
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 | |
46 | ||
47 | #ifndef ETH_P_RRB | |
48 | #define ETH_P_RRB 0x890D | |
49 | #endif /* ETH_P_RRB */ | |
50 | ||
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 | |
54 | ||
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]; | |
60 | ||
61 | u8 nonce[16]; | |
62 | u8 pmk_r0_name[WPA_PMK_NAME_LEN]; | |
63 | u8 r1kh_id[FT_R1KH_ID_LEN]; | |
64 | u8 s1kh_id[ETH_ALEN]; | |
65 | u8 pad[4]; /* 8-octet boundary for AES key wrap */ | |
66 | u8 key_wrap_extra[8]; | |
67 | } STRUCT_PACKED; | |
68 | ||
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]; | |
74 | ||
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 */ | |
78 | u8 pmk_r1[PMK_LEN]; | |
79 | u8 pmk_r1_name[WPA_PMK_NAME_LEN]; | |
80 | u8 pad[4]; /* 8-octet boundary for AES key wrap */ | |
81 | u8 key_wrap_extra[8]; | |
82 | } STRUCT_PACKED; | |
83 | ||
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]; | |
89 | ||
90 | /* Encrypted with AES key-wrap */ | |
91 | u8 timestamp[4]; /* current time in seconds since unix epoch, little | |
92 | * endian */ | |
93 | u8 r1kh_id[FT_R1KH_ID_LEN]; | |
94 | u8 s1kh_id[ETH_ALEN]; | |
95 | u8 pmk_r0_name[WPA_PMK_NAME_LEN]; | |
96 | u8 pmk_r1[PMK_LEN]; | |
97 | u8 pmk_r1_name[WPA_PMK_NAME_LEN]; | |
98 | u8 key_wrap_extra[8]; | |
99 | } STRUCT_PACKED; | |
100 | ||
101 | #ifdef _MSC_VER | |
102 | #pragma pack(pop) | |
103 | #endif /* _MSC_VER */ | |
104 | ||
105 | ||
106 | /* per STA state machine data */ | |
107 | ||
108 | struct wpa_authenticator; | |
109 | struct wpa_state_machine; | |
110 | struct rsn_pmksa_cache_entry; | |
111 | struct eapol_state_machine; | |
112 | ||
113 | ||
114 | struct ft_remote_r0kh { | |
115 | struct ft_remote_r0kh *next; | |
116 | u8 addr[ETH_ALEN]; | |
117 | u8 id[FT_R0KH_ID_MAX_LEN]; | |
118 | size_t id_len; | |
119 | u8 key[16]; | |
120 | }; | |
121 | ||
122 | ||
123 | struct ft_remote_r1kh { | |
124 | struct ft_remote_r1kh *next; | |
125 | u8 addr[ETH_ALEN]; | |
126 | u8 id[FT_R1KH_ID_LEN]; | |
127 | u8 key[16]; | |
128 | }; | |
129 | ||
130 | ||
131 | struct wpa_auth_config { | |
132 | int wpa; | |
133 | int wpa_key_mgmt; | |
134 | int wpa_pairwise; | |
135 | int wpa_group; | |
136 | int wpa_group_rekey; | |
137 | int wpa_strict_rekey; | |
138 | int wpa_gmk_rekey; | |
139 | int rsn_pairwise; | |
140 | int rsn_preauth; | |
141 | int eapol_version; | |
142 | int peerkey; | |
143 | int wme_enabled; | |
bf98f7f3 | 144 | int okc; |
6fc6879b JM |
145 | #ifdef CONFIG_IEEE80211W |
146 | enum { | |
147 | WPA_NO_IEEE80211W = 0, | |
148 | WPA_IEEE80211W_OPTIONAL = 1, | |
149 | WPA_IEEE80211W_REQUIRED = 2 | |
150 | } ieee80211w; | |
151 | #endif /* CONFIG_IEEE80211W */ | |
152 | #ifdef CONFIG_IEEE80211R | |
153 | #define SSID_LEN 32 | |
154 | u8 ssid[SSID_LEN]; | |
155 | size_t ssid_len; | |
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]; | |
160 | u32 r0_key_lifetime; | |
161 | u32 reassociation_deadline; | |
162 | struct ft_remote_r0kh *r0kh_list; | |
163 | struct ft_remote_r1kh *r1kh_list; | |
164 | int pmk_r1_push; | |
165 | #endif /* CONFIG_IEEE80211R */ | |
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); | |
183 | void (*mic_failure_report)(void *ctx, const u8 *addr); | |
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); | |
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); | |
bf98f7f3 JM |
197 | int (*for_each_auth)(void *ctx, int (*cb)(struct wpa_authenticator *a, |
198 | void *ctx), void *cb_ctx); | |
6fc6879b JM |
199 | int (*send_ether)(void *ctx, const u8 *dst, u16 proto, const u8 *data, |
200 | size_t data_len); | |
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 */ | |
206 | }; | |
207 | ||
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); | |
214 | ||
215 | enum { | |
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 | |
220 | }; | |
221 | ||
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); | |
f3f7540e | 226 | int wpa_auth_uses_mfp(struct wpa_state_machine *sm); |
6fc6879b JM |
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); | |
235 | typedef enum { | |
236 | WPA_AUTH, WPA_ASSOC, WPA_DISASSOC, WPA_DEAUTH, WPA_REAUTH, | |
237 | WPA_REAUTH_EAPOL, WPA_ASSOC_FT | |
238 | } wpa_event; | |
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, | |
255 | size_t *len); | |
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, | |
260 | int session_timeout, | |
261 | struct eapol_state_machine *eapol); | |
262 | int wpa_auth_sta_set_vlan(struct wpa_state_machine *sm, int vlan_id); | |
263 | ||
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), | |
272 | void *ctx); | |
273 | u16 wpa_ft_validate_reassoc(struct wpa_state_machine *sm, const u8 *ies, | |
274 | size_t ies_len); | |
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 */ | |
280 | ||
281 | #endif /* WPA_AUTH_H */ |