1 /* 2 * hostapd / Initialization and configuration 3 * Copyright (c) 2002-2009, Jouni Malinen <j (at) 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 HOSTAPD_H 10 #define HOSTAPD_H 11 12 #include "common/defs.h" 13 #include "ap_config.h" 14 15 struct wpa_driver_ops; 16 struct wpa_ctrl_dst; 17 struct radius_server_data; 18 struct upnp_wps_device_sm; 19 struct hostapd_data; 20 struct sta_info; 21 struct hostap_sta_driver_data; 22 struct ieee80211_ht_capabilities; 23 struct full_dynamic_vlan; 24 enum wps_event; 25 union wps_event_data; 26 27 struct hostapd_iface; 28 struct hostapd_dynamic_iface; 29 30 struct hapd_interfaces { 31 int (*reload_config)(struct hostapd_iface *iface); 32 struct hostapd_config * (*config_read_cb)(const char *config_fname); 33 int (*ctrl_iface_init)(struct hostapd_data *hapd); 34 void (*ctrl_iface_deinit)(struct hostapd_data *hapd); 35 int (*for_each_interface)(struct hapd_interfaces *interfaces, 36 int (*cb)(struct hostapd_iface *iface, 37 void *ctx), void *ctx); 38 int (*driver_init)(struct hostapd_iface *iface); 39 40 size_t count; 41 size_t count_dynamic; 42 int global_ctrl_sock; 43 char *global_iface_path; 44 char *global_iface_name; 45 gid_t ctrl_iface_group; 46 struct hostapd_iface **iface; 47 struct hostapd_dynamic_iface **dynamic_iface; 48 }; 49 50 enum hostapd_chan_status { 51 HOSTAPD_CHAN_VALID = 0, /* channel is ready */ 52 HOSTAPD_CHAN_INVALID = 1, /* no usable channel found */ 53 HOSTAPD_CHAN_ACS = 2, /* ACS work being performed */ 54 }; 55 56 struct hostapd_probereq_cb { 57 int (*cb)(void *ctx, const u8 *sa, const u8 *da, const u8 *bssid, 58 const u8 *ie, size_t ie_len, int ssi_signal); 59 void *ctx; 60 }; 61 62 #define HOSTAPD_RATE_BASIC 0x00000001 63 64 struct hostapd_rate_data { 65 int rate; /* rate in 100 kbps */ 66 int flags; /* HOSTAPD_RATE_ flags */ 67 }; 68 69 struct hostapd_frame_info { 70 u32 channel; 71 u32 datarate; 72 int ssi_signal; /* dBm */ 73 }; 74 75 enum wps_status { 76 WPS_STATUS_SUCCESS = 1, 77 WPS_STATUS_FAILURE 78 }; 79 80 enum pbc_status { 81 WPS_PBC_STATUS_DISABLE, 82 WPS_PBC_STATUS_ACTIVE, 83 WPS_PBC_STATUS_TIMEOUT, 84 WPS_PBC_STATUS_OVERLAP 85 }; 86 87 struct wps_stat { 88 enum wps_status status; 89 enum wps_error_indication failure_reason; 90 enum pbc_status pbc_status; 91 u8 peer_addr[ETH_ALEN]; 92 }; 93 94 95 /** 96 * struct hostapd_data - hostapd per-BSS data structure 97 */ 98 struct hostapd_data { 99 struct hostapd_iface *iface; 100 struct hostapd_config *iconf; 101 struct hostapd_bss_config *conf; 102 int interface_added; /* virtual interface added for this BSS */ 103 104 u8 own_addr[ETH_ALEN]; 105 106 int num_sta; /* number of entries in sta_list */ 107 struct sta_info *sta_list; /* STA info list head */ 108 #define STA_HASH_SIZE 256 109 #define STA_HASH(sta) (sta[5]) 110 struct sta_info *sta_hash[STA_HASH_SIZE]; 111 112 /* 113 * Bitfield for indicating which AIDs are allocated. Only AID values 114 * 1-2007 are used and as such, the bit at index 0 corresponds to AID 115 * 1. 116 */ 117 #define AID_WORDS ((2008 + 31) / 32) 118 u32 sta_aid[AID_WORDS]; 119 120 const struct wpa_driver_ops *driver; 121 void *drv_priv; 122 123 void (*new_assoc_sta_cb)(struct hostapd_data *hapd, 124 struct sta_info *sta, int reassoc); 125 126 void *msg_ctx; /* ctx for wpa_msg() calls */ 127 void *msg_ctx_parent; /* parent interface ctx for wpa_msg() calls */ 128 129 struct radius_client_data *radius; 130 u32 acct_session_id_hi, acct_session_id_lo; 131 struct radius_das_data *radius_das; 132 133 struct iapp_data *iapp; 134 135 struct hostapd_cached_radius_acl *acl_cache; 136 struct hostapd_acl_query_data *acl_queries; 137 138 struct wpa_authenticator *wpa_auth; 139 struct eapol_authenticator *eapol_auth; 140 141 struct rsn_preauth_interface *preauth_iface; 142 time_t michael_mic_failure; 143 int michael_mic_failures; 144 int tkip_countermeasures; 145 146 int ctrl_sock; 147 struct wpa_ctrl_dst *ctrl_dst; 148 149 void *ssl_ctx; 150 void *eap_sim_db_priv; 151 struct radius_server_data *radius_srv; 152 153 int parameter_set_count; 154 155 /* Time Advertisement */ 156 u8 time_update_counter; 157 struct wpabuf *time_adv; 158 159 #ifdef CONFIG_FULL_DYNAMIC_VLAN 160 struct full_dynamic_vlan *full_dynamic_vlan; 161 #endif /* CONFIG_FULL_DYNAMIC_VLAN */ 162 163 struct l2_packet_data *l2; 164 struct wps_context *wps; 165 166 int beacon_set_done; 167 struct wpabuf *wps_beacon_ie; 168 struct wpabuf *wps_probe_resp_ie; 169 #ifdef CONFIG_WPS 170 unsigned int ap_pin_failures; 171 unsigned int ap_pin_failures_consecutive; 172 struct upnp_wps_device_sm *wps_upnp; 173 unsigned int ap_pin_lockout_time; 174 175 struct wps_stat wps_stats; 176 #endif /* CONFIG_WPS */ 177 178 struct hostapd_probereq_cb *probereq_cb; 179 size_t num_probereq_cb; 180 181 void (*public_action_cb)(void *ctx, const u8 *buf, size_t len, 182 int freq); 183 void *public_action_cb_ctx; 184 void (*public_action_cb2)(void *ctx, const u8 *buf, size_t len, 185 int freq); 186 void *public_action_cb2_ctx; 187 188 int (*vendor_action_cb)(void *ctx, const u8 *buf, size_t len, 189 int freq); 190 void *vendor_action_cb_ctx; 191 192 void (*wps_reg_success_cb)(void *ctx, const u8 *mac_addr, 193 const u8 *uuid_e); 194 void *wps_reg_success_cb_ctx; 195 196 void (*wps_event_cb)(void *ctx, enum wps_event event, 197 union wps_event_data *data); 198 void *wps_event_cb_ctx; 199 200 void (*sta_authorized_cb)(void *ctx, const u8 *mac_addr, 201 int authorized, const u8 *p2p_dev_addr); 202 void *sta_authorized_cb_ctx; 203 204 void (*setup_complete_cb)(void *ctx); 205 void *setup_complete_cb_ctx; 206 207 void (*new_psk_cb)(void *ctx, const u8 *mac_addr, 208 const u8 *p2p_dev_addr, const u8 *psk, 209 size_t psk_len); 210 void *new_psk_cb_ctx; 211 212 #ifdef CONFIG_P2P 213 struct p2p_data *p2p; 214 struct p2p_group *p2p_group; 215 struct wpabuf *p2p_beacon_ie; 216 struct wpabuf *p2p_probe_resp_ie; 217 218 /* Number of non-P2P association stations */ 219 int num_sta_no_p2p; 220 221 /* Periodic NoA (used only when no non-P2P clients in the group) */ 222 int noa_enabled; 223 int noa_start; 224 int noa_duration; 225 #endif /* CONFIG_P2P */ 226 #ifdef CONFIG_INTERWORKING 227 size_t gas_frag_limit; 228 #endif /* CONFIG_INTERWORKING */ 229 230 #ifdef CONFIG_SQLITE 231 struct hostapd_eap_user tmp_eap_user; 232 #endif /* CONFIG_SQLITE */ 233 234 #ifdef CONFIG_SAE 235 /** Key used for generating SAE anti-clogging tokens */ 236 u8 sae_token_key[8]; 237 os_time_t last_sae_token_key_update; 238 #endif /* CONFIG_SAE */ 239 }; 240 241 242 /** 243 * struct hostapd_iface - hostapd per-interface data structure 244 */ 245 struct hostapd_iface { 246 struct hapd_interfaces *interfaces; 247 void *owner; 248 char *config_fname; 249 struct hostapd_config *conf; 250 251 size_t num_bss; 252 struct hostapd_data **bss; 253 254 int num_ap; /* number of entries in ap_list */ 255 struct ap_info *ap_list; /* AP info list head */ 256 struct ap_info *ap_hash[STA_HASH_SIZE]; 257 258 unsigned int drv_flags; 259 260 /* 261 * A bitmap of supported protocols for probe response offload. See 262 * struct wpa_driver_capa in driver.h 263 */ 264 unsigned int probe_resp_offloads; 265 266 /* extended capabilities supported by the driver */ 267 const u8 *extended_capa, *extended_capa_mask; 268 unsigned int extended_capa_len; 269 270 unsigned int drv_max_acl_mac_addrs; 271 272 struct hostapd_hw_modes *hw_features; 273 int num_hw_features; 274 struct hostapd_hw_modes *current_mode; 275 /* Rates that are currently used (i.e., filtered copy of 276 * current_mode->channels */ 277 int num_rates; 278 struct hostapd_rate_data *current_rates; 279 int *basic_rates; 280 int freq; 281 282 u16 hw_flags; 283 284 /* Number of associated Non-ERP stations (i.e., stations using 802.11b 285 * in 802.11g BSS) */ 286 int num_sta_non_erp; 287 288 /* Number of associated stations that do not support Short Slot Time */ 289 int num_sta_no_short_slot_time; 290 291 /* Number of associated stations that do not support Short Preamble */ 292 int num_sta_no_short_preamble; 293 294 int olbc; /* Overlapping Legacy BSS Condition */ 295 296 /* Number of HT associated stations that do not support greenfield */ 297 int num_sta_ht_no_gf; 298 299 /* Number of associated non-HT stations */ 300 int num_sta_no_ht; 301 302 /* Number of HT associated stations 20 MHz */ 303 int num_sta_ht_20mhz; 304 305 /* Overlapping BSS information */ 306 int olbc_ht; 307 308 u16 ht_op_mode; 309 310 /* surveying helpers */ 311 312 /* number of channels surveyed */ 313 unsigned int chans_surveyed; 314 315 /* lowest observed noise floor in dBm */ 316 s8 lowest_nf; 317 318 #ifdef CONFIG_ACS 319 unsigned int acs_num_completed_scans; 320 #endif /* CONFIG_ACS */ 321 322 void (*scan_cb)(struct hostapd_iface *iface); 323 }; 324 325 /** 326 * struct hostapd_dynamic_iface - hostapd per dynamically allocated 327 * or added interface data structure 328 */ 329 struct hostapd_dynamic_iface { 330 char parent[IFNAMSIZ + 1]; 331 char iface[IFNAMSIZ + 1]; 332 unsigned int usage; 333 }; 334 335 /* hostapd.c */ 336 int hostapd_for_each_interface(struct hapd_interfaces *interfaces, 337 int (*cb)(struct hostapd_iface *iface, 338 void *ctx), void *ctx); 339 int hostapd_reload_config(struct hostapd_iface *iface); 340 struct hostapd_data * 341 hostapd_alloc_bss_data(struct hostapd_iface *hapd_iface, 342 struct hostapd_config *conf, 343 struct hostapd_bss_config *bss); 344 int hostapd_setup_interface(struct hostapd_iface *iface); 345 int hostapd_setup_interface_complete(struct hostapd_iface *iface, int err); 346 void hostapd_interface_deinit(struct hostapd_iface *iface); 347 void hostapd_interface_free(struct hostapd_iface *iface); 348 void hostapd_new_assoc_sta(struct hostapd_data *hapd, struct sta_info *sta, 349 int reassoc); 350 void hostapd_interface_deinit_free(struct hostapd_iface *iface); 351 int hostapd_enable_iface(struct hostapd_iface *hapd_iface); 352 int hostapd_reload_iface(struct hostapd_iface *hapd_iface); 353 int hostapd_disable_iface(struct hostapd_iface *hapd_iface); 354 int hostapd_add_iface(struct hapd_interfaces *ifaces, char *buf); 355 int hostapd_remove_iface(struct hapd_interfaces *ifaces, char *buf); 356 357 /* utils.c */ 358 int hostapd_register_probereq_cb(struct hostapd_data *hapd, 359 int (*cb)(void *ctx, const u8 *sa, 360 const u8 *da, const u8 *bssid, 361 const u8 *ie, size_t ie_len, 362 int ssi_signal), 363 void *ctx); 364 void hostapd_prune_associations(struct hostapd_data *hapd, const u8 *addr); 365 366 /* drv_callbacks.c (TODO: move to somewhere else?) */ 367 int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr, 368 const u8 *ie, size_t ielen, int reassoc); 369 void hostapd_notif_disassoc(struct hostapd_data *hapd, const u8 *addr); 370 void hostapd_event_sta_low_ack(struct hostapd_data *hapd, const u8 *addr); 371 void hostapd_event_connect_failed_reason(struct hostapd_data *hapd, 372 const u8 *addr, int reason_code); 373 int hostapd_probe_req_rx(struct hostapd_data *hapd, const u8 *sa, const u8 *da, 374 const u8 *bssid, const u8 *ie, size_t ie_len, 375 int ssi_signal); 376 void hostapd_event_ch_switch(struct hostapd_data *hapd, int freq, int ht, 377 int offset); 378 379 const struct hostapd_eap_user * 380 hostapd_get_eap_user(struct hostapd_data *hapd, const u8 *identity, 381 size_t identity_len, int phase2); 382 383 #endif /* HOSTAPD_H */ 384
