1 /* 2 * wpa_supplicant - WPA definitions 3 * Copyright (c) 2003-2007, 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_H 10 #define WPA_H 11 12 #include "common/defs.h" 13 #include "common/eapol_common.h" 14 #include "common/wpa_common.h" 15 16 struct wpa_sm; 17 struct eapol_sm; 18 struct wpa_config_blob; 19 20 struct wpa_sm_ctx { 21 void *ctx; /* pointer to arbitrary upper level context */ 22 void *msg_ctx; /* upper level context for wpa_msg() calls */ 23 24 void (*set_state)(void *ctx, enum wpa_states state); 25 enum wpa_states (*get_state)(void *ctx); 26 void (*deauthenticate)(void * ctx, int reason_code); 27 int (*set_key)(void *ctx, enum wpa_alg alg, 28 const u8 *addr, int key_idx, int set_tx, 29 const u8 *seq, size_t seq_len, 30 const u8 *key, size_t key_len); 31 void * (*get_network_ctx)(void *ctx); 32 int (*get_bssid)(void *ctx, u8 *bssid); 33 int (*ether_send)(void *ctx, const u8 *dest, u16 proto, const u8 *buf, 34 size_t len); 35 int (*get_beacon_ie)(void *ctx); 36 void (*cancel_auth_timeout)(void *ctx); 37 u8 * (*alloc_eapol)(void *ctx, u8 type, const void *data, u16 data_len, 38 size_t *msg_len, void **data_pos); 39 int (*add_pmkid)(void *ctx, const u8 *bssid, const u8 *pmkid); 40 int (*remove_pmkid)(void *ctx, const u8 *bssid, const u8 *pmkid); 41 void (*set_config_blob)(void *ctx, struct wpa_config_blob *blob); 42 const struct wpa_config_blob * (*get_config_blob)(void *ctx, 43 const char *name); 44 int (*mlme_setprotection)(void *ctx, const u8 *addr, 45 int protection_type, int key_type); 46 int (*update_ft_ies)(void *ctx, const u8 *md, const u8 *ies, 47 size_t ies_len); 48 int (*send_ft_action)(void *ctx, u8 action, const u8 *target_ap, 49 const u8 *ies, size_t ies_len); 50 int (*mark_authenticated)(void *ctx, const u8 *target_ap); 51 #ifdef CONFIG_TDLS 52 int (*tdls_get_capa)(void *ctx, int *tdls_supported, 53 int *tdls_ext_setup); 54 int (*send_tdls_mgmt)(void *ctx, const u8 *dst, 55 u8 action_code, u8 dialog_token, 56 u16 status_code, const u8 *buf, size_t len); 57 int (*tdls_oper)(void *ctx, int oper, const u8 *peer); 58 int (*tdls_peer_addset)(void *ctx, const u8 *addr, int add, 59 u16 capability, const u8 *supp_rates, 60 size_t supp_rates_len); 61 #endif /* CONFIG_TDLS */ 62 void (*set_rekey_offload)(void *ctx, const u8 *kek, const u8 *kck, 63 const u8 *replay_ctr); 64 }; 65 66 67 enum wpa_sm_conf_params { 68 RSNA_PMK_LIFETIME /* dot11RSNAConfigPMKLifetime */, 69 RSNA_PMK_REAUTH_THRESHOLD /* dot11RSNAConfigPMKReauthThreshold */, 70 RSNA_SA_TIMEOUT /* dot11RSNAConfigSATimeout */, 71 WPA_PARAM_PROTO, 72 WPA_PARAM_PAIRWISE, 73 WPA_PARAM_GROUP, 74 WPA_PARAM_KEY_MGMT, 75 WPA_PARAM_MGMT_GROUP, 76 WPA_PARAM_RSN_ENABLED, 77 WPA_PARAM_MFP 78 }; 79 80 struct rsn_supp_config { 81 void *network_ctx; 82 int peerkey_enabled; 83 int allowed_pairwise_cipher; /* bitfield of WPA_CIPHER_* */ 84 int proactive_key_caching; 85 int eap_workaround; 86 void *eap_conf_ctx; 87 const u8 *ssid; 88 size_t ssid_len; 89 int wpa_ptk_rekey; 90 }; 91 92 #ifndef CONFIG_NO_WPA 93 94 struct wpa_sm * wpa_sm_init(struct wpa_sm_ctx *ctx); 95 void wpa_sm_deinit(struct wpa_sm *sm); 96 void wpa_sm_notify_assoc(struct wpa_sm *sm, const u8 *bssid); 97 void wpa_sm_notify_disassoc(struct wpa_sm *sm); 98 void wpa_sm_set_pmk(struct wpa_sm *sm, const u8 *pmk, size_t pmk_len); 99 void wpa_sm_set_pmk_from_pmksa(struct wpa_sm *sm); 100 void wpa_sm_set_fast_reauth(struct wpa_sm *sm, int fast_reauth); 101 void wpa_sm_set_scard_ctx(struct wpa_sm *sm, void *scard_ctx); 102 void wpa_sm_set_config(struct wpa_sm *sm, struct rsn_supp_config *config); 103 void wpa_sm_set_own_addr(struct wpa_sm *sm, const u8 *addr); 104 void wpa_sm_set_ifname(struct wpa_sm *sm, const char *ifname, 105 const char *bridge_ifname); 106 void wpa_sm_set_eapol(struct wpa_sm *sm, struct eapol_sm *eapol); 107 int wpa_sm_set_assoc_wpa_ie(struct wpa_sm *sm, const u8 *ie, size_t len); 108 int wpa_sm_set_assoc_wpa_ie_default(struct wpa_sm *sm, u8 *wpa_ie, 109 size_t *wpa_ie_len); 110 int wpa_sm_set_ap_wpa_ie(struct wpa_sm *sm, const u8 *ie, size_t len); 111 int wpa_sm_set_ap_rsn_ie(struct wpa_sm *sm, const u8 *ie, size_t len); 112 int wpa_sm_get_mib(struct wpa_sm *sm, char *buf, size_t buflen); 113 114 int wpa_sm_set_param(struct wpa_sm *sm, enum wpa_sm_conf_params param, 115 unsigned int value); 116 unsigned int wpa_sm_get_param(struct wpa_sm *sm, 117 enum wpa_sm_conf_params param); 118 119 int wpa_sm_get_status(struct wpa_sm *sm, char *buf, size_t buflen, 120 int verbose); 121 122 void wpa_sm_key_request(struct wpa_sm *sm, int error, int pairwise); 123 124 int wpa_parse_wpa_ie(const u8 *wpa_ie, size_t wpa_ie_len, 125 struct wpa_ie_data *data); 126 127 void wpa_sm_aborted_cached(struct wpa_sm *sm); 128 int wpa_sm_rx_eapol(struct wpa_sm *sm, const u8 *src_addr, 129 const u8 *buf, size_t len); 130 int wpa_sm_parse_own_wpa_ie(struct wpa_sm *sm, struct wpa_ie_data *data); 131 int wpa_sm_pmksa_cache_list(struct wpa_sm *sm, char *buf, size_t len); 132 void wpa_sm_drop_sa(struct wpa_sm *sm); 133 int wpa_sm_has_ptk(struct wpa_sm *sm); 134 135 void wpa_sm_update_replay_ctr(struct wpa_sm *sm, const u8 *replay_ctr); 136 137 void wpa_sm_pmksa_cache_flush(struct wpa_sm *sm, void *network_ctx); 138 139 #else /* CONFIG_NO_WPA */ 140 141 static inline struct wpa_sm * wpa_sm_init(struct wpa_sm_ctx *ctx) 142 { 143 return (struct wpa_sm *) 1; 144 } 145 146 static inline void wpa_sm_deinit(struct wpa_sm *sm) 147 { 148 } 149 150 static inline void wpa_sm_notify_assoc(struct wpa_sm *sm, const u8 *bssid) 151 { 152 } 153 154 static inline void wpa_sm_notify_disassoc(struct wpa_sm *sm) 155 { 156 } 157 158 static inline void wpa_sm_set_pmk(struct wpa_sm *sm, const u8 *pmk, 159 size_t pmk_len) 160 { 161 } 162 163 static inline void wpa_sm_set_pmk_from_pmksa(struct wpa_sm *sm) 164 { 165 } 166 167 static inline void wpa_sm_set_fast_reauth(struct wpa_sm *sm, int fast_reauth) 168 { 169 } 170 171 static inline void wpa_sm_set_scard_ctx(struct wpa_sm *sm, void *scard_ctx) 172 { 173 } 174 175 static inline void wpa_sm_set_config(struct wpa_sm *sm, 176 struct rsn_supp_config *config) 177 { 178 } 179 180 static inline void wpa_sm_set_own_addr(struct wpa_sm *sm, const u8 *addr) 181 { 182 } 183 184 static inline void wpa_sm_set_ifname(struct wpa_sm *sm, const char *ifname, 185 const char *bridge_ifname) 186 { 187 } 188 189 static inline void wpa_sm_set_eapol(struct wpa_sm *sm, struct eapol_sm *eapol) 190 { 191 } 192 193 static inline int wpa_sm_set_assoc_wpa_ie(struct wpa_sm *sm, const u8 *ie, 194 size_t len) 195 { 196 return -1; 197 } 198 199 static inline int wpa_sm_set_assoc_wpa_ie_default(struct wpa_sm *sm, 200 u8 *wpa_ie, 201 size_t *wpa_ie_len) 202 { 203 return -1; 204 } 205 206 static inline int wpa_sm_set_ap_wpa_ie(struct wpa_sm *sm, const u8 *ie, 207 size_t len) 208 { 209 return -1; 210 } 211 212 static inline int wpa_sm_set_ap_rsn_ie(struct wpa_sm *sm, const u8 *ie, 213 size_t len) 214 { 215 return -1; 216 } 217 218 static inline int wpa_sm_get_mib(struct wpa_sm *sm, char *buf, size_t buflen) 219 { 220 return 0; 221 } 222 223 static inline int wpa_sm_set_param(struct wpa_sm *sm, 224 enum wpa_sm_conf_params param, 225 unsigned int value) 226 { 227 return -1; 228 } 229 230 static inline unsigned int wpa_sm_get_param(struct wpa_sm *sm, 231 enum wpa_sm_conf_params param) 232 { 233 return 0; 234 } 235 236 static inline int wpa_sm_get_status(struct wpa_sm *sm, char *buf, 237 size_t buflen, int verbose) 238 { 239 return 0; 240 } 241 242 static inline void wpa_sm_key_request(struct wpa_sm *sm, int error, 243 int pairwise) 244 { 245 } 246 247 static inline int wpa_parse_wpa_ie(const u8 *wpa_ie, size_t wpa_ie_len, 248 struct wpa_ie_data *data) 249 { 250 return -1; 251 } 252 253 static inline void wpa_sm_aborted_cached(struct wpa_sm *sm) 254 { 255 } 256 257 static inline int wpa_sm_rx_eapol(struct wpa_sm *sm, const u8 *src_addr, 258 const u8 *buf, size_t len) 259 { 260 return -1; 261 } 262 263 static inline int wpa_sm_parse_own_wpa_ie(struct wpa_sm *sm, 264 struct wpa_ie_data *data) 265 { 266 return -1; 267 } 268 269 static inline int wpa_sm_pmksa_cache_list(struct wpa_sm *sm, char *buf, 270 size_t len) 271 { 272 return -1; 273 } 274 275 static inline void wpa_sm_drop_sa(struct wpa_sm *sm) 276 { 277 } 278 279 static inline int wpa_sm_has_ptk(struct wpa_sm *sm) 280 { 281 return 0; 282 } 283 284 static inline void wpa_sm_update_replay_ctr(struct wpa_sm *sm, 285 const u8 *replay_ctr) 286 { 287 } 288 289 static inline void wpa_sm_pmksa_cache_flush(struct wpa_sm *sm, 290 void *network_ctx) 291 { 292 } 293 294 #endif /* CONFIG_NO_WPA */ 295 296 #ifdef CONFIG_PEERKEY 297 int wpa_sm_stkstart(struct wpa_sm *sm, const u8 *peer); 298 #else /* CONFIG_PEERKEY */ 299 static inline int wpa_sm_stkstart(struct wpa_sm *sm, const u8 *peer) 300 { 301 return -1; 302 } 303 #endif /* CONFIG_PEERKEY */ 304 305 #ifdef CONFIG_IEEE80211R 306 307 int wpa_sm_set_ft_params(struct wpa_sm *sm, const u8 *ies, size_t ies_len); 308 int wpa_ft_prepare_auth_request(struct wpa_sm *sm, const u8 *mdie); 309 int wpa_ft_process_response(struct wpa_sm *sm, const u8 *ies, size_t ies_len, 310 int ft_action, const u8 *target_ap, 311 const u8 *ric_ies, size_t ric_ies_len); 312 int wpa_ft_is_completed(struct wpa_sm *sm); 313 int wpa_ft_validate_reassoc_resp(struct wpa_sm *sm, const u8 *ies, 314 size_t ies_len, const u8 *src_addr); 315 int wpa_ft_start_over_ds(struct wpa_sm *sm, const u8 *target_ap, 316 const u8 *mdie); 317 318 #else /* CONFIG_IEEE80211R */ 319 320 static inline int 321 wpa_sm_set_ft_params(struct wpa_sm *sm, const u8 *ies, size_t ies_len) 322 { 323 return 0; 324 } 325 326 static inline int wpa_ft_prepare_auth_request(struct wpa_sm *sm, 327 const u8 *mdie) 328 { 329 return 0; 330 } 331 332 static inline int 333 wpa_ft_process_response(struct wpa_sm *sm, const u8 *ies, size_t ies_len, 334 int ft_action, const u8 *target_ap) 335 { 336 return 0; 337 } 338 339 static inline int wpa_ft_is_completed(struct wpa_sm *sm) 340 { 341 return 0; 342 } 343 344 static inline int 345 wpa_ft_validate_reassoc_resp(struct wpa_sm *sm, const u8 *ies, size_t ies_len, 346 const u8 *src_addr) 347 { 348 return -1; 349 } 350 351 #endif /* CONFIG_IEEE80211R */ 352 353 354 /* tdls.c */ 355 void wpa_tdls_ap_ies(struct wpa_sm *sm, const u8 *ies, size_t len); 356 void wpa_tdls_assoc_resp_ies(struct wpa_sm *sm, const u8 *ies, size_t len); 357 int wpa_tdls_start(struct wpa_sm *sm, const u8 *addr); 358 int wpa_tdls_reneg(struct wpa_sm *sm, const u8 *addr); 359 int wpa_tdls_send_teardown(struct wpa_sm *sm, const u8 *addr, u16 reason_code); 360 int wpa_tdls_teardown_link(struct wpa_sm *sm, const u8 *addr, u16 reason_code); 361 int wpa_tdls_send_discovery_request(struct wpa_sm *sm, const u8 *addr); 362 int wpa_tdls_init(struct wpa_sm *sm); 363 void wpa_tdls_deinit(struct wpa_sm *sm); 364 void wpa_tdls_enable(struct wpa_sm *sm, int enabled); 365 void wpa_tdls_disable_link(struct wpa_sm *sm, const u8 *addr); 366 int wpa_tdls_is_external_setup(struct wpa_sm *sm); 367 368 int wpa_wnmsleep_install_key(struct wpa_sm *sm, u8 subelem_id, u8 *buf); 369 370 #endif /* WPA_H */ 371