src/rsn_supp/wpa.h

   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         void (*disassociate)(void *ctx, int reason_code);
  28         int (*set_key)(void *ctx, enum wpa_alg alg,
  29                        const u8 *addr, int key_idx, int set_tx,
  30                        const u8 *seq, size_t seq_len,
  31                        const u8 *key, size_t key_len);
  32         void * (*get_network_ctx)(void *ctx);
  33         int (*get_bssid)(void *ctx, u8 *bssid);
  34         int (*ether_send)(void *ctx, const u8 *dest, u16 proto, const u8 *buf,
  35                           size_t len);
  36         int (*get_beacon_ie)(void *ctx);
  37         void (*cancel_auth_timeout)(void *ctx);
  38         u8 * (*alloc_eapol)(void *ctx, u8 type, const void *data, u16 data_len,
  39                             size_t *msg_len, void **data_pos);
  40         int (*add_pmkid)(void *ctx, const u8 *bssid, const u8 *pmkid);
  41         int (*remove_pmkid)(void *ctx, const u8 *bssid, const u8 *pmkid);
  42         void (*set_config_blob)(void *ctx, struct wpa_config_blob *blob);
  43         const struct wpa_config_blob * (*get_config_blob)(void *ctx,
  44                                                           const char *name);
  45         int (*mlme_setprotection)(void *ctx, const u8 *addr,
  46                                   int protection_type, int key_type);
  47         int (*update_ft_ies)(void *ctx, const u8 *md, const u8 *ies,
  48                              size_t ies_len);
  49         int (*send_ft_action)(void *ctx, u8 action, const u8 *target_ap,
  50                               const u8 *ies, size_t ies_len);
  51         int (*mark_authenticated)(void *ctx, const u8 *target_ap);
  52 #ifdef CONFIG_TDLS
  53         int (*tdls_get_capa)(void *ctx, int *tdls_supported,
  54                              int *tdls_ext_setup);
  55         int (*send_tdls_mgmt)(void *ctx, const u8 *dst,
  56                               u8 action_code, u8 dialog_token,
  57                               u16 status_code, const u8 *buf, size_t len);
  58         int (*tdls_oper)(void *ctx, int oper, const u8 *peer);
  59         int (*tdls_peer_addset)(void *ctx, const u8 *addr, int add,
  60                                 u16 capability, const u8 *supp_rates,
  61                                 size_t supp_rates_len);
  62 #endif /* CONFIG_TDLS */
  63         void (*set_rekey_offload)(void *ctx, const u8 *kek, const u8 *kck,
  64                                   const u8 *replay_ctr);
  65 };
  66
  67
  68 enum wpa_sm_conf_params {
  69         RSNA_PMK_LIFETIME /* dot11RSNAConfigPMKLifetime */,
  70         RSNA_PMK_REAUTH_THRESHOLD /* dot11RSNAConfigPMKReauthThreshold */,
  71         RSNA_SA_TIMEOUT /* dot11RSNAConfigSATimeout */,
  72         WPA_PARAM_PROTO,
  73         WPA_PARAM_PAIRWISE,
  74         WPA_PARAM_GROUP,
  75         WPA_PARAM_KEY_MGMT,
  76         WPA_PARAM_MGMT_GROUP,
  77         WPA_PARAM_RSN_ENABLED,
  78         WPA_PARAM_MFP
  79 };
  80
  81 struct rsn_supp_config {
  82         void *network_ctx;
  83         int peerkey_enabled;
  84         int allowed_pairwise_cipher; /* bitfield of WPA_CIPHER_* */
  85         int proactive_key_caching;
  86         int eap_workaround;
  87         void *eap_conf_ctx;
  88         const u8 *ssid;
  89         size_t ssid_len;
  90         int wpa_ptk_rekey;
  91 };
  92
  93 #ifndef CONFIG_NO_WPA
  94
  95 struct wpa_sm * wpa_sm_init(struct wpa_sm_ctx *ctx);
  96 void wpa_sm_deinit(struct wpa_sm *sm);
  97 void wpa_sm_notify_assoc(struct wpa_sm *sm, const u8 *bssid);
  98 void wpa_sm_notify_disassoc(struct wpa_sm *sm);
  99 void wpa_sm_set_pmk(struct wpa_sm *sm, const u8 *pmk, size_t pmk_len);
 100 void wpa_sm_set_pmk_from_pmksa(struct wpa_sm *sm);
 101 void wpa_sm_set_fast_reauth(struct wpa_sm *sm, int fast_reauth);
 102 void wpa_sm_set_scard_ctx(struct wpa_sm *sm, void *scard_ctx);
 103 void wpa_sm_set_config(struct wpa_sm *sm, struct rsn_supp_config *config);
 104 void wpa_sm_set_own_addr(struct wpa_sm *sm, const u8 *addr);
 105 void wpa_sm_set_ifname(struct wpa_sm *sm, const char *ifname,
 106                        const char *bridge_ifname);
 107 void wpa_sm_set_eapol(struct wpa_sm *sm, struct eapol_sm *eapol);
 108 int wpa_sm_set_assoc_wpa_ie(struct wpa_sm *sm, const u8 *ie, size_t len);
 109 int wpa_sm_set_assoc_wpa_ie_default(struct wpa_sm *sm, u8 *wpa_ie,
 110                                     size_t *wpa_ie_len);
 111 int wpa_sm_set_ap_wpa_ie(struct wpa_sm *sm, const u8 *ie, size_t len);
 112 int wpa_sm_set_ap_rsn_ie(struct wpa_sm *sm, const u8 *ie, size_t len);
 113 int wpa_sm_get_mib(struct wpa_sm *sm, char *buf, size_t buflen);
 114
 115 int wpa_sm_set_param(struct wpa_sm *sm, enum wpa_sm_conf_params param,
 116                      unsigned int value);
 117 unsigned int wpa_sm_get_param(struct wpa_sm *sm,
 118                               enum wpa_sm_conf_params param);
 119
 120 int wpa_sm_get_status(struct wpa_sm *sm, char *buf, size_t buflen,
 121                       int verbose);
 122
 123 void wpa_sm_key_request(struct wpa_sm *sm, int error, int pairwise);
 124
 125 int wpa_parse_wpa_ie(const u8 *wpa_ie, size_t wpa_ie_len,
 126                      struct wpa_ie_data *data);
 127
 128 void wpa_sm_aborted_cached(struct wpa_sm *sm);
 129 int wpa_sm_rx_eapol(struct wpa_sm *sm, const u8 *src_addr,
 130                     const u8 *buf, size_t len);
 131 int wpa_sm_parse_own_wpa_ie(struct wpa_sm *sm, struct wpa_ie_data *data);
 132 int wpa_sm_pmksa_cache_list(struct wpa_sm *sm, char *buf, size_t len);
 133 void wpa_sm_drop_sa(struct wpa_sm *sm);
 134 int wpa_sm_has_ptk(struct wpa_sm *sm);
 135
 136 void wpa_sm_update_replay_ctr(struct wpa_sm *sm, const u8 *replay_ctr);
 137
 138 void wpa_sm_pmksa_cache_flush(struct wpa_sm *sm, void *network_ctx);
 139
 140 #else /* CONFIG_NO_WPA */
 141
 142 static inline struct wpa_sm * wpa_sm_init(struct wpa_sm_ctx *ctx)
 143 {
 144         return (struct wpa_sm *) 1;
 145 }
 146
 147 static inline void wpa_sm_deinit(struct wpa_sm *sm)
 148 {
 149 }
 150
 151 static inline void wpa_sm_notify_assoc(struct wpa_sm *sm, const u8 *bssid)
 152 {
 153 }
 154
 155 static inline void wpa_sm_notify_disassoc(struct wpa_sm *sm)
 156 {
 157 }
 158
 159 static inline void wpa_sm_set_pmk(struct wpa_sm *sm, const u8 *pmk,
 160                                   size_t pmk_len)
 161 {
 162 }
 163
 164 static inline void wpa_sm_set_pmk_from_pmksa(struct wpa_sm *sm)
 165 {
 166 }
 167
 168 static inline void wpa_sm_set_fast_reauth(struct wpa_sm *sm, int fast_reauth)
 169 {
 170 }
 171
 172 static inline void wpa_sm_set_scard_ctx(struct wpa_sm *sm, void *scard_ctx)
 173 {
 174 }
 175
 176 static inline void wpa_sm_set_config(struct wpa_sm *sm,
 177                                      struct rsn_supp_config *config)
 178 {
 179 }
 180
 181 static inline void wpa_sm_set_own_addr(struct wpa_sm *sm, const u8 *addr)
 182 {
 183 }
 184
 185 static inline void wpa_sm_set_ifname(struct wpa_sm *sm, const char *ifname,
 186                                      const char *bridge_ifname)
 187 {
 188 }
 189
 190 static inline void wpa_sm_set_eapol(struct wpa_sm *sm, struct eapol_sm *eapol)
 191 {
 192 }
 193
 194 static inline int wpa_sm_set_assoc_wpa_ie(struct wpa_sm *sm, const u8 *ie,
 195                                           size_t len)
 196 {
 197         return -1;
 198 }
 199
 200 static inline int wpa_sm_set_assoc_wpa_ie_default(struct wpa_sm *sm,
 201                                                   u8 *wpa_ie,
 202                                                   size_t *wpa_ie_len)
 203 {
 204         return -1;
 205 }
 206
 207 static inline int wpa_sm_set_ap_wpa_ie(struct wpa_sm *sm, const u8 *ie,
 208                                        size_t len)
 209 {
 210         return -1;
 211 }
 212
 213 static inline int wpa_sm_set_ap_rsn_ie(struct wpa_sm *sm, const u8 *ie,
 214                                        size_t len)
 215 {
 216         return -1;
 217 }
 218
 219 static inline int wpa_sm_get_mib(struct wpa_sm *sm, char *buf, size_t buflen)
 220 {
 221         return 0;
 222 }
 223
 224 static inline int wpa_sm_set_param(struct wpa_sm *sm,
 225                                    enum wpa_sm_conf_params param,
 226                                    unsigned int value)
 227 {
 228         return -1;
 229 }
 230
 231 static inline unsigned int wpa_sm_get_param(struct wpa_sm *sm,
 232                                             enum wpa_sm_conf_params param)
 233 {
 234         return 0;
 235 }
 236
 237 static inline int wpa_sm_get_status(struct wpa_sm *sm, char *buf,
 238                                     size_t buflen, int verbose)
 239 {
 240         return 0;
 241 }
 242
 243 static inline void wpa_sm_key_request(struct wpa_sm *sm, int error,
 244                                       int pairwise)
 245 {
 246 }
 247
 248 static inline int wpa_parse_wpa_ie(const u8 *wpa_ie, size_t wpa_ie_len,
 249                                    struct wpa_ie_data *data)
 250 {
 251         return -1;
 252 }
 253
 254 static inline void wpa_sm_aborted_cached(struct wpa_sm *sm)
 255 {
 256 }
 257
 258 static inline int wpa_sm_rx_eapol(struct wpa_sm *sm, const u8 *src_addr,
 259                                   const u8 *buf, size_t len)
 260 {
 261         return -1;
 262 }
 263
 264 static inline int wpa_sm_parse_own_wpa_ie(struct wpa_sm *sm,
 265                                           struct wpa_ie_data *data)
 266 {
 267         return -1;
 268 }
 269
 270 static inline int wpa_sm_pmksa_cache_list(struct wpa_sm *sm, char *buf,
 271                                           size_t len)
 272 {
 273         return -1;
 274 }
 275
 276 static inline void wpa_sm_drop_sa(struct wpa_sm *sm)
 277 {
 278 }
 279
 280 static inline int wpa_sm_has_ptk(struct wpa_sm *sm)
 281 {
 282         return 0;
 283 }
 284
 285 static inline void wpa_sm_update_replay_ctr(struct wpa_sm *sm,
 286                                             const u8 *replay_ctr)
 287 {
 288 }
 289
 290 static inline void wpa_sm_pmksa_cache_flush(struct wpa_sm *sm,
 291                                             void *network_ctx)
 292 {
 293 }
 294
 295 #endif /* CONFIG_NO_WPA */
 296
 297 #ifdef CONFIG_PEERKEY
 298 int wpa_sm_stkstart(struct wpa_sm *sm, const u8 *peer);
 299 #else /* CONFIG_PEERKEY */
 300 static inline int wpa_sm_stkstart(struct wpa_sm *sm, const u8 *peer)
 301 {
 302         return -1;
 303 }
 304 #endif /* CONFIG_PEERKEY */
 305
 306 #ifdef CONFIG_IEEE80211R
 307
 308 int wpa_sm_set_ft_params(struct wpa_sm *sm, const u8 *ies, size_t ies_len);
 309 int wpa_ft_prepare_auth_request(struct wpa_sm *sm, const u8 *mdie);
 310 int wpa_ft_process_response(struct wpa_sm *sm, const u8 *ies, size_t ies_len,
 311                             int ft_action, const u8 *target_ap,
 312                             const u8 *ric_ies, size_t ric_ies_len);
 313 int wpa_ft_is_completed(struct wpa_sm *sm);
 314 int wpa_ft_validate_reassoc_resp(struct wpa_sm *sm, const u8 *ies,
 315                                  size_t ies_len, const u8 *src_addr);
 316 int wpa_ft_start_over_ds(struct wpa_sm *sm, const u8 *target_ap,
 317                          const u8 *mdie);
 318
 319 #else /* CONFIG_IEEE80211R */
 320
 321 static inline int
 322 wpa_sm_set_ft_params(struct wpa_sm *sm, const u8 *ies, size_t ies_len)
 323 {
 324         return 0;
 325 }
 326
 327 static inline int wpa_ft_prepare_auth_request(struct wpa_sm *sm,
 328                                               const u8 *mdie)
 329 {
 330         return 0;
 331 }
 332
 333 static inline int
 334 wpa_ft_process_response(struct wpa_sm *sm, const u8 *ies, size_t ies_len,
 335                         int ft_action, const u8 *target_ap)
 336 {
 337         return 0;
 338 }
 339
 340 static inline int wpa_ft_is_completed(struct wpa_sm *sm)
 341 {
 342         return 0;
 343 }
 344
 345 static inline int
 346 wpa_ft_validate_reassoc_resp(struct wpa_sm *sm, const u8 *ies, size_t ies_len,
 347                              const u8 *src_addr)
 348 {
 349         return -1;
 350 }
 351
 352 #endif /* CONFIG_IEEE80211R */
 353
 354
 355 /* tdls.c */
 356 void wpa_tdls_ap_ies(struct wpa_sm *sm, const u8 *ies, size_t len);
 357 void wpa_tdls_assoc_resp_ies(struct wpa_sm *sm, const u8 *ies, size_t len);
 358 int wpa_tdls_start(struct wpa_sm *sm, const u8 *addr);
 359 int wpa_tdls_reneg(struct wpa_sm *sm, const u8 *addr);
 360 int wpa_tdls_send_teardown(struct wpa_sm *sm, const u8 *addr, u16 reason_code);
 361 int wpa_tdls_teardown_link(struct wpa_sm *sm, const u8 *addr, u16 reason_code);
 362 int wpa_tdls_send_discovery_request(struct wpa_sm *sm, const u8 *addr);
 363 int wpa_tdls_init(struct wpa_sm *sm);
 364 void wpa_tdls_deinit(struct wpa_sm *sm);
 365 void wpa_tdls_enable(struct wpa_sm *sm, int enabled);
 366 void wpa_tdls_disable_link(struct wpa_sm *sm, const u8 *addr);
 367 int wpa_tdls_is_external_setup(struct wpa_sm *sm);
 368
 369 #ifdef CONFIG_IEEE80211V
 370 int wpa_wnmsleep_install_key(struct wpa_sm *sm, u8 subelem_id, u8 *buf);
 371 #endif /* CONFIG_IEEE80211V */
 372
 373 #endif /* WPA_H */