dist/wpa/src/rsn_supp/wpa.h

   1 /*
   2  * wpa_supplicant - WPA definitions
   3  * Copyright (c) 2003-2007, 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_H
  16 #define WPA_H
  17
  18 #include "defs.h"
  19 #include "eapol_common.h"
  20 #include "wpa_common.h"
  21
  22 #ifndef ETH_P_EAPOL
  23 #define ETH_P_EAPOL 0x888e
  24 #endif
  25
  26 #ifndef ETH_P_RSN_PREAUTH
  27 #define ETH_P_RSN_PREAUTH 0x88c7
  28 #endif
  29
  30 struct wpa_sm;
  31 struct eapol_sm;
  32 struct wpa_config_blob;
  33
  34 struct wpa_sm_ctx {
  35         void *ctx; /* pointer to arbitrary upper level context */
  36
  37         void (*set_state)(void *ctx, wpa_states state);
  38         wpa_states (*get_state)(void *ctx);
  39         void (*deauthenticate)(void * ctx, int reason_code);
  40         void (*disassociate)(void *ctx, int reason_code);
  41         int (*set_key)(void *ctx, wpa_alg alg,
  42                        const u8 *addr, int key_idx, int set_tx,
  43                        const u8 *seq, size_t seq_len,
  44                        const u8 *key, size_t key_len);
  45         void * (*get_network_ctx)(void *ctx);
  46         int (*get_bssid)(void *ctx, u8 *bssid);
  47         int (*ether_send)(void *ctx, const u8 *dest, u16 proto, const u8 *buf,
  48                           size_t len);
  49         int (*get_beacon_ie)(void *ctx);
  50         void (*cancel_auth_timeout)(void *ctx);
  51         u8 * (*alloc_eapol)(void *ctx, u8 type, const void *data, u16 data_len,
  52                             size_t *msg_len, void **data_pos);
  53         int (*add_pmkid)(void *ctx, const u8 *bssid, const u8 *pmkid);
  54         int (*remove_pmkid)(void *ctx, const u8 *bssid, const u8 *pmkid);
  55         void (*set_config_blob)(void *ctx, struct wpa_config_blob *blob);
  56         const struct wpa_config_blob * (*get_config_blob)(void *ctx,
  57                                                           const char *name);
  58         int (*mlme_setprotection)(void *ctx, const u8 *addr,
  59                                   int protection_type, int key_type);
  60         int (*update_ft_ies)(void *ctx, const u8 *md, const u8 *ies,
  61                              size_t ies_len);
  62         int (*send_ft_action)(void *ctx, u8 action, const u8 *target_ap,
  63                               const u8 *ies, size_t ies_len);
  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 };
  78
  79 struct rsn_supp_config {
  80         void *network_ctx;
  81         int peerkey_enabled;
  82         int allowed_pairwise_cipher; /* bitfield of WPA_CIPHER_* */
  83         int proactive_key_caching;
  84         int eap_workaround;
  85         void *eap_conf_ctx;
  86         const u8 *ssid;
  87         size_t ssid_len;
  88 };
  89
  90 #ifndef CONFIG_NO_WPA
  91
  92 struct wpa_sm * wpa_sm_init(struct wpa_sm_ctx *ctx);
  93 void wpa_sm_deinit(struct wpa_sm *sm);
  94 void wpa_sm_notify_assoc(struct wpa_sm *sm, const u8 *bssid);
  95 void wpa_sm_notify_disassoc(struct wpa_sm *sm);
  96 void wpa_sm_set_pmk(struct wpa_sm *sm, const u8 *pmk, size_t pmk_len);
  97 void wpa_sm_set_pmk_from_pmksa(struct wpa_sm *sm);
  98 void wpa_sm_set_fast_reauth(struct wpa_sm *sm, int fast_reauth);
  99 void wpa_sm_set_scard_ctx(struct wpa_sm *sm, void *scard_ctx);
 100 void wpa_sm_set_config(struct wpa_sm *sm, struct rsn_supp_config *config);
 101 void wpa_sm_set_own_addr(struct wpa_sm *sm, const u8 *addr);
 102 void wpa_sm_set_ifname(struct wpa_sm *sm, const char *ifname,
 103                        const char *bridge_ifname);
 104 void wpa_sm_set_eapol(struct wpa_sm *sm, struct eapol_sm *eapol);
 105 int wpa_sm_set_assoc_wpa_ie(struct wpa_sm *sm, const u8 *ie, size_t len);
 106 int wpa_sm_set_assoc_wpa_ie_default(struct wpa_sm *sm, u8 *wpa_ie,
 107                                     size_t *wpa_ie_len);
 108 int wpa_sm_set_ap_wpa_ie(struct wpa_sm *sm, const u8 *ie, size_t len);
 109 int wpa_sm_set_ap_rsn_ie(struct wpa_sm *sm, const u8 *ie, size_t len);
 110 int wpa_sm_get_mib(struct wpa_sm *sm, char *buf, size_t buflen);
 111
 112 int wpa_sm_set_param(struct wpa_sm *sm, enum wpa_sm_conf_params param,
 113                      unsigned int value);
 114 unsigned int wpa_sm_get_param(struct wpa_sm *sm,
 115                               enum wpa_sm_conf_params param);
 116
 117 int wpa_sm_get_status(struct wpa_sm *sm, char *buf, size_t buflen,
 118                       int verbose);
 119
 120 void wpa_sm_key_request(struct wpa_sm *sm, int error, int pairwise);
 121
 122 int wpa_parse_wpa_ie(const u8 *wpa_ie, size_t wpa_ie_len,
 123                      struct wpa_ie_data *data);
 124
 125 void wpa_sm_aborted_cached(struct wpa_sm *sm);
 126 int wpa_sm_rx_eapol(struct wpa_sm *sm, const u8 *src_addr,
 127                     const u8 *buf, size_t len);
 128 int wpa_sm_parse_own_wpa_ie(struct wpa_sm *sm, struct wpa_ie_data *data);
 129
 130 #else /* CONFIG_NO_WPA */
 131
 132 static inline struct wpa_sm * wpa_sm_init(struct wpa_sm_ctx *ctx)
 133 {
 134         return (struct wpa_sm *) 1;
 135 }
 136
 137 static inline void wpa_sm_deinit(struct wpa_sm *sm)
 138 {
 139 }
 140
 141 static inline void wpa_sm_notify_assoc(struct wpa_sm *sm, const u8 *bssid)
 142 {
 143 }
 144
 145 static inline void wpa_sm_notify_disassoc(struct wpa_sm *sm)
 146 {
 147 }
 148
 149 static inline void wpa_sm_set_pmk(struct wpa_sm *sm, const u8 *pmk,
 150                                   size_t pmk_len)
 151 {
 152 }
 153
 154 static inline void wpa_sm_set_pmk_from_pmksa(struct wpa_sm *sm)
 155 {
 156 }
 157
 158 static inline void wpa_sm_set_fast_reauth(struct wpa_sm *sm, int fast_reauth)
 159 {
 160 }
 161
 162 static inline void wpa_sm_set_scard_ctx(struct wpa_sm *sm, void *scard_ctx)
 163 {
 164 }
 165
 166 static inline void wpa_sm_set_config(struct wpa_sm *sm,
 167                                      struct rsn_supp_config *config)
 168 {
 169 }
 170
 171 static inline void wpa_sm_set_own_addr(struct wpa_sm *sm, const u8 *addr)
 172 {
 173 }
 174
 175 static inline void wpa_sm_set_ifname(struct wpa_sm *sm, const char *ifname,
 176                                      const char *bridge_ifname)
 177 {
 178 }
 179
 180 static inline void wpa_sm_set_eapol(struct wpa_sm *sm, struct eapol_sm *eapol)
 181 {
 182 }
 183
 184 static inline int wpa_sm_set_assoc_wpa_ie(struct wpa_sm *sm, const u8 *ie,
 185                                           size_t len)
 186 {
 187         return -1;
 188 }
 189
 190 static inline int wpa_sm_set_assoc_wpa_ie_default(struct wpa_sm *sm,
 191                                                   u8 *wpa_ie,
 192                                                   size_t *wpa_ie_len)
 193 {
 194         return -1;
 195 }
 196
 197 static inline int wpa_sm_set_ap_wpa_ie(struct wpa_sm *sm, const u8 *ie,
 198                                        size_t len)
 199 {
 200         return -1;
 201 }
 202
 203 static inline int wpa_sm_set_ap_rsn_ie(struct wpa_sm *sm, const u8 *ie,
 204                                        size_t len)
 205 {
 206         return -1;
 207 }
 208
 209 static inline int wpa_sm_get_mib(struct wpa_sm *sm, char *buf, size_t buflen)
 210 {
 211         return 0;
 212 }
 213
 214 static inline int wpa_sm_set_param(struct wpa_sm *sm,
 215                                    enum wpa_sm_conf_params param,
 216                                    unsigned int value)
 217 {
 218         return -1;
 219 }
 220
 221 static inline unsigned int wpa_sm_get_param(struct wpa_sm *sm,
 222                                             enum wpa_sm_conf_params param)
 223 {
 224         return 0;
 225 }
 226
 227 static inline int wpa_sm_get_status(struct wpa_sm *sm, char *buf,
 228                                     size_t buflen, int verbose)
 229 {
 230         return 0;
 231 }
 232
 233 static inline void wpa_sm_key_request(struct wpa_sm *sm, int error,
 234                                       int pairwise)
 235 {
 236 }
 237
 238 static inline int wpa_parse_wpa_ie(const u8 *wpa_ie, size_t wpa_ie_len,
 239                                    struct wpa_ie_data *data)
 240 {
 241         return -1;
 242 }
 243
 244 static inline void wpa_sm_aborted_cached(struct wpa_sm *sm)
 245 {
 246 }
 247
 248 static inline int wpa_sm_rx_eapol(struct wpa_sm *sm, const u8 *src_addr,
 249                                   const u8 *buf, size_t len)
 250 {
 251         return -1;
 252 }
 253
 254 static inline int wpa_sm_parse_own_wpa_ie(struct wpa_sm *sm,
 255                                           struct wpa_ie_data *data)
 256 {
 257         return -1;
 258 }
 259
 260 #endif /* CONFIG_NO_WPA */
 261
 262 #ifdef CONFIG_PEERKEY
 263 int wpa_sm_stkstart(struct wpa_sm *sm, const u8 *peer);
 264 #else /* CONFIG_PEERKEY */
 265 static inline int wpa_sm_stkstart(struct wpa_sm *sm, const u8 *peer)
 266 {
 267         return -1;
 268 }
 269 #endif /* CONFIG_PEERKEY */
 270
 271 #ifdef CONFIG_IEEE80211R
 272
 273 int wpa_sm_set_ft_params(struct wpa_sm *sm, const u8 *mobility_domain,
 274                          const u8 *r0kh_id, size_t r0kh_id_len,
 275                          const u8 *r1kh_id);
 276 int wpa_ft_prepare_auth_request(struct wpa_sm *sm);
 277 int wpa_ft_process_response(struct wpa_sm *sm, const u8 *ies, size_t ies_len,
 278                             int ft_action, const u8 *target_ap);
 279 int wpa_ft_is_completed(struct wpa_sm *sm);
 280 int wpa_ft_validate_reassoc_resp(struct wpa_sm *sm, const u8 *ies,
 281                                  size_t ies_len, const u8 *src_addr);
 282 int wpa_ft_start_over_ds(struct wpa_sm *sm, const u8 *target_ap);
 283
 284 #else /* CONFIG_IEEE80211R */
 285
 286 static inline int
 287 wpa_sm_set_ft_params(struct wpa_sm *sm, const u8 *mobility_domain,
 288                      const u8 *r0kh_id, const u8 *r1kh_id)
 289 {
 290         return 0;
 291 }
 292
 293 static inline int wpa_ft_prepare_auth_request(struct wpa_sm *sm)
 294 {
 295         return 0;
 296 }
 297
 298 static inline int
 299 wpa_ft_process_response(struct wpa_sm *sm, const u8 *ies, size_t ies_len,
 300                         int ft_action, const u8 *target_ap)
 301 {
 302         return 0;
 303 }
 304
 305 static inline int wpa_ft_is_completed(struct wpa_sm *sm)
 306 {
 307         return 0;
 308 }
 309
 310 static inline int
 311 wpa_ft_validate_reassoc_resp(struct wpa_sm *sm, const u8 *ies, size_t ies_len,
 312                              const u8 *src_addr)
 313 {
 314         return -1;
 315 }
 316
 317 #endif /* CONFIG_IEEE80211R */
 318
 319 #endif /* WPA_H */