1 /* 2 * hostapd / Initialization and configuration 3 * Copyright (c) 2002-2013, 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 #include "drivers/driver.h" 15 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 ieee80211_ht_capabilities; 22 struct full_dynamic_vlan; 23 enum wps_event; 24 union wps_event_data; 25 26 struct hostapd_iface; 27 28 struct hapd_interfaces { 29 int (*reload_config)(struct hostapd_iface *iface); 30 struct hostapd_config * (*config_read_cb)(const char *config_fname); 31 int (*ctrl_iface_init)(struct hostapd_data *hapd); 32 void (*ctrl_iface_deinit)(struct hostapd_data *hapd); 33 int (*for_each_interface)(struct hapd_interfaces *interfaces, 34 int (*cb)(struct hostapd_iface *iface, 35 void *ctx), void *ctx); 36 int (*driver_init)(struct hostapd_iface *iface); 37 38 size_t count; 39 int global_ctrl_sock; 40 char *global_iface_path; 41 char *global_iface_name; 42 #ifndef CONFIG_NATIVE_WINDOWS 43 gid_t ctrl_iface_group; 44 #endif /* CONFIG_NATIVE_WINDOWS */ 45 struct hostapd_iface **iface; 46 47 size_t terminate_on_error; 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 unsigned int started:1; 104 105 u8 own_addr[ETH_ALEN]; 106 107 int num_sta; /* number of entries in sta_list */ 108 struct sta_info *sta_list; /* STA info list head */ 109 #define STA_HASH_SIZE 256 110 #define STA_HASH(sta) (sta[5]) 111 struct sta_info *sta_hash[STA_HASH_SIZE]; 112 113 /* 114 * Bitfield for indicating which AIDs are allocated. Only AID values 115 * 1-2007 are used and as such, the bit at index 0 corresponds to AID 116 * 1. 117 */ 118 #define AID_WORDS ((2008 + 31) / 32) 119 u32 sta_aid[AID_WORDS]; 120 121 const struct wpa_driver_ops *driver; 122 void *drv_priv; 123 124 void (*new_assoc_sta_cb)(struct hostapd_data *hapd, 125 struct sta_info *sta, int reassoc); 126 127 void *msg_ctx; /* ctx for wpa_msg() calls */ 128 void *msg_ctx_parent; /* parent interface ctx for wpa_msg() calls */ 129 130 struct radius_client_data *radius; 131 u32 acct_session_id_hi, acct_session_id_lo; 132 struct radius_das_data *radius_das; 133 134 struct iapp_data *iapp; 135 136 struct hostapd_cached_radius_acl *acl_cache; 137 struct hostapd_acl_query_data *acl_queries; 138 139 struct wpa_authenticator *wpa_auth; 140 struct eapol_authenticator *eapol_auth; 141 142 struct rsn_preauth_interface *preauth_iface; 143 struct os_reltime michael_mic_failure; 144 int michael_mic_failures; 145 int tkip_countermeasures; 146 147 int ctrl_sock; 148 struct wpa_ctrl_dst *ctrl_dst; 149 150 void *ssl_ctx; 151 void *eap_sim_db_priv; 152 struct radius_server_data *radius_srv; 153 154 int parameter_set_count; 155 156 /* Time Advertisement */ 157 u8 time_update_counter; 158 struct wpabuf *time_adv; 159 160 #ifdef CONFIG_FULL_DYNAMIC_VLAN 161 struct full_dynamic_vlan *full_dynamic_vlan; 162 #endif /* CONFIG_FULL_DYNAMIC_VLAN */ 163 164 struct l2_packet_data *l2; 165 struct wps_context *wps; 166 167 int beacon_set_done; 168 struct wpabuf *wps_beacon_ie; 169 struct wpabuf *wps_probe_resp_ie; 170 #ifdef CONFIG_WPS 171 unsigned int ap_pin_failures; 172 unsigned int ap_pin_failures_consecutive; 173 struct upnp_wps_device_sm *wps_upnp; 174 unsigned int ap_pin_lockout_time; 175 176 struct wps_stat wps_stats; 177 #endif /* CONFIG_WPS */ 178 179 struct hostapd_probereq_cb *probereq_cb; 180 size_t num_probereq_cb; 181 182 void (*public_action_cb)(void *ctx, const u8 *buf, size_t len, 183 int freq); 184 void *public_action_cb_ctx; 185 void (*public_action_cb2)(void *ctx, const u8 *buf, size_t len, 186 int freq); 187 void *public_action_cb2_ctx; 188 189 int (*vendor_action_cb)(void *ctx, const u8 *buf, size_t len, 190 int freq); 191 void *vendor_action_cb_ctx; 192 193 void (*wps_reg_success_cb)(void *ctx, const u8 *mac_addr, 194 const u8 *uuid_e); 195 void *wps_reg_success_cb_ctx; 196 197 void (*wps_event_cb)(void *ctx, enum wps_event event, 198 union wps_event_data *data); 199 void *wps_event_cb_ctx; 200 201 void (*sta_authorized_cb)(void *ctx, const u8 *mac_addr, 202 int authorized, const u8 *p2p_dev_addr); 203 void *sta_authorized_cb_ctx; 204 205 void (*setup_complete_cb)(void *ctx); 206 void *setup_complete_cb_ctx; 207 208 void (*new_psk_cb)(void *ctx, const u8 *mac_addr, 209 const u8 *p2p_dev_addr, const u8 *psk, 210 size_t psk_len); 211 void *new_psk_cb_ctx; 212 213 /* channel switch parameters */ 214 struct hostapd_freq_params cs_freq_params; 215 u8 cs_count; 216 int cs_block_tx; 217 unsigned int cs_c_off_beacon; 218 unsigned int cs_c_off_proberesp; 219 int csa_in_progress; 220 221 #ifdef CONFIG_P2P 222 struct p2p_data *p2p; 223 struct p2p_group *p2p_group; 224 struct wpabuf *p2p_beacon_ie; 225 struct wpabuf *p2p_probe_resp_ie; 226 227 /* Number of non-P2P association stations */ 228 int num_sta_no_p2p; 229 230 /* Periodic NoA (used only when no non-P2P clients in the group) */ 231 int noa_enabled; 232 int noa_start; 233 int noa_duration; 234 #endif /* CONFIG_P2P */ 235 #ifdef CONFIG_INTERWORKING 236 size_t gas_frag_limit; 237 #endif /* CONFIG_INTERWORKING */ 238 239 #ifdef CONFIG_SQLITE 240 struct hostapd_eap_user tmp_eap_user; 241 #endif /* CONFIG_SQLITE */ 242 243 #ifdef CONFIG_SAE 244 /** Key used for generating SAE anti-clogging tokens */ 245 u8 sae_token_key[8]; 246 struct os_reltime last_sae_token_key_update; 247 #endif /* CONFIG_SAE */ 248 249 #ifdef CONFIG_TESTING_OPTIONS 250 int ext_mgmt_frame_handling; 251 #endif /* CONFIG_TESTING_OPTIONS */ 252 }; 253 254 255 /** 256 * struct hostapd_iface - hostapd per-interface data structure 257 */ 258 struct hostapd_iface { 259 struct hapd_interfaces *interfaces; 260 void *owner; 261 char *config_fname; 262 struct hostapd_config *conf; 263 char phy[16]; /* Name of the PHY (radio) */ 264 265 enum hostapd_iface_state { 266 HAPD_IFACE_UNINITIALIZED, 267 HAPD_IFACE_DISABLED, 268 HAPD_IFACE_COUNTRY_UPDATE, 269 HAPD_IFACE_ACS, 270 HAPD_IFACE_HT_SCAN, 271 HAPD_IFACE_DFS, 272 HAPD_IFACE_ENABLED 273 } state; 274 275 size_t num_bss; 276 struct hostapd_data **bss; 277 278 unsigned int wait_channel_update:1; 279 unsigned int cac_started:1; 280 281 /* 282 * When set, indicates that the driver will handle the AP 283 * teardown: delete global keys, station keys, and stations. 284 */ 285 unsigned int driver_ap_teardown:1; 286 287 int num_ap; /* number of entries in ap_list */ 288 struct ap_info *ap_list; /* AP info list head */ 289 struct ap_info *ap_hash[STA_HASH_SIZE]; 290 291 unsigned int drv_flags; 292 293 /* 294 * A bitmap of supported protocols for probe response offload. See 295 * struct wpa_driver_capa in driver.h 296 */ 297 unsigned int probe_resp_offloads; 298 299 /* extended capabilities supported by the driver */ 300 const u8 *extended_capa, *extended_capa_mask; 301 unsigned int extended_capa_len; 302 303 unsigned int drv_max_acl_mac_addrs; 304 305 struct hostapd_hw_modes *hw_features; 306 int num_hw_features; 307 struct hostapd_hw_modes *current_mode; 308 /* Rates that are currently used (i.e., filtered copy of 309 * current_mode->channels */ 310 int num_rates; 311 struct hostapd_rate_data *current_rates; 312 int *basic_rates; 313 int freq; 314 315 u16 hw_flags; 316 317 /* Number of associated Non-ERP stations (i.e., stations using 802.11b 318 * in 802.11g BSS) */ 319 int num_sta_non_erp; 320 321 /* Number of associated stations that do not support Short Slot Time */ 322 int num_sta_no_short_slot_time; 323 324 /* Number of associated stations that do not support Short Preamble */ 325 int num_sta_no_short_preamble; 326 327 int olbc; /* Overlapping Legacy BSS Condition */ 328 329 /* Number of HT associated stations that do not support greenfield */ 330 int num_sta_ht_no_gf; 331 332 /* Number of associated non-HT stations */ 333 int num_sta_no_ht; 334 335 /* Number of HT associated stations 20 MHz */ 336 int num_sta_ht_20mhz; 337 338 /* Number of HT40 intolerant stations */ 339 int num_sta_ht40_intolerant; 340 341 /* Overlapping BSS information */ 342 int olbc_ht; 343 344 u16 ht_op_mode; 345 346 /* surveying helpers */ 347 348 /* number of channels surveyed */ 349 unsigned int chans_surveyed; 350 351 /* lowest observed noise floor in dBm */ 352 s8 lowest_nf; 353 354 unsigned int dfs_cac_ms; 355 struct os_reltime dfs_cac_start; 356 357 /* Latched with the actual secondary channel information and will be 358 * used while juggling between HT20 and HT40 modes. */ 359 int secondary_ch; 360 361 #ifdef CONFIG_ACS 362 unsigned int acs_num_completed_scans; 363 #endif /* CONFIG_ACS */ 364 365 void (*scan_cb)(struct hostapd_iface *iface); 366 int num_ht40_scan_tries; 367 }; 368 369 /* hostapd.c */ 370 int hostapd_for_each_interface(struct hapd_interfaces *interfaces, 371 int (*cb)(struct hostapd_iface *iface, 372 void *ctx), void *ctx); 373 int hostapd_reload_config(struct hostapd_iface *iface); 374 struct hostapd_data * 375 hostapd_alloc_bss_data(struct hostapd_iface *hapd_iface, 376 struct hostapd_config *conf, 377 struct hostapd_bss_config *bss); 378 int hostapd_setup_interface(struct hostapd_iface *iface); 379 int hostapd_setup_interface_complete(struct hostapd_iface *iface, int err); 380 void hostapd_interface_deinit(struct hostapd_iface *iface); 381 void hostapd_interface_free(struct hostapd_iface *iface); 382 struct hostapd_iface * hostapd_init(struct hapd_interfaces *interfaces, 383 const char *config_file); 384 struct hostapd_iface * 385 hostapd_interface_init_bss(struct hapd_interfaces *interfaces, const char *phy, 386 const char *config_fname, int debug); 387 void hostapd_new_assoc_sta(struct hostapd_data *hapd, struct sta_info *sta, 388 int reassoc); 389 void hostapd_interface_deinit_free(struct hostapd_iface *iface); 390 int hostapd_enable_iface(struct hostapd_iface *hapd_iface); 391 int hostapd_reload_iface(struct hostapd_iface *hapd_iface); 392 int hostapd_disable_iface(struct hostapd_iface *hapd_iface); 393 int hostapd_add_iface(struct hapd_interfaces *ifaces, char *buf); 394 int hostapd_remove_iface(struct hapd_interfaces *ifaces, char *buf); 395 void hostapd_channel_list_updated(struct hostapd_iface *iface, int initiator); 396 void hostapd_set_state(struct hostapd_iface *iface, enum hostapd_iface_state s); 397 const char * hostapd_state_text(enum hostapd_iface_state s); 398 int hostapd_switch_channel(struct hostapd_data *hapd, 399 struct csa_settings *settings); 400 void 401 hostapd_switch_channel_fallback(struct hostapd_iface *iface, 402 const struct hostapd_freq_params *freq_params); 403 void hostapd_cleanup_cs_params(struct hostapd_data *hapd); 404 405 /* utils.c */ 406 int hostapd_register_probereq_cb(struct hostapd_data *hapd, 407 int (*cb)(void *ctx, const u8 *sa, 408 const u8 *da, const u8 *bssid, 409 const u8 *ie, size_t ie_len, 410 int ssi_signal), 411 void *ctx); 412 void hostapd_prune_associations(struct hostapd_data *hapd, const u8 *addr); 413 414 /* drv_callbacks.c (TODO: move to somewhere else?) */ 415 int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr, 416 const u8 *ie, size_t ielen, int reassoc); 417 void hostapd_notif_disassoc(struct hostapd_data *hapd, const u8 *addr); 418 void hostapd_event_sta_low_ack(struct hostapd_data *hapd, const u8 *addr); 419 void hostapd_event_connect_failed_reason(struct hostapd_data *hapd, 420 const u8 *addr, int reason_code); 421 int hostapd_probe_req_rx(struct hostapd_data *hapd, const u8 *sa, const u8 *da, 422 const u8 *bssid, const u8 *ie, size_t ie_len, 423 int ssi_signal); 424 void hostapd_event_ch_switch(struct hostapd_data *hapd, int freq, int ht, 425 int offset, int width, int cf1, int cf2); 426 427 const struct hostapd_eap_user * 428 hostapd_get_eap_user(struct hostapd_data *hapd, const u8 *identity, 429 size_t identity_len, int phase2); 430 431 #endif /* HOSTAPD_H */ 432
