1 /* 2 * hostapd / Initialization and configuration 3 * Copyright (c) 2002-2014, 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 "utils/list.h" 14 #include "ap_config.h" 15 #include "drivers/driver.h" 16 17 struct wpa_ctrl_dst; 18 struct radius_server_data; 19 struct upnp_wps_device_sm; 20 struct hostapd_data; 21 struct sta_info; 22 struct ieee80211_ht_capabilities; 23 struct full_dynamic_vlan; 24 enum wps_event; 25 union wps_event_data; 26 #ifdef CONFIG_MESH 27 struct mesh_conf; 28 #endif /* CONFIG_MESH */ 29 30 struct hostapd_iface; 31 32 struct hapd_interfaces { 33 int (*reload_config)(struct hostapd_iface *iface); 34 struct hostapd_config * (*config_read_cb)(const char *config_fname); 35 int (*ctrl_iface_init)(struct hostapd_data *hapd); 36 void (*ctrl_iface_deinit)(struct hostapd_data *hapd); 37 int (*for_each_interface)(struct hapd_interfaces *interfaces, 38 int (*cb)(struct hostapd_iface *iface, 39 void *ctx), void *ctx); 40 int (*driver_init)(struct hostapd_iface *iface); 41 42 size_t count; 43 int global_ctrl_sock; 44 struct dl_list global_ctrl_dst; 45 char *global_iface_path; 46 char *global_iface_name; 47 #ifndef CONFIG_NATIVE_WINDOWS 48 gid_t ctrl_iface_group; 49 #endif /* CONFIG_NATIVE_WINDOWS */ 50 struct hostapd_iface **iface; 51 52 size_t terminate_on_error; 53 #ifndef CONFIG_NO_VLAN 54 struct dynamic_iface *vlan_priv; 55 #endif /* CONFIG_NO_VLAN */ 56 }; 57 58 enum hostapd_chan_status { 59 HOSTAPD_CHAN_VALID = 0, /* channel is ready */ 60 HOSTAPD_CHAN_INVALID = 1, /* no usable channel found */ 61 HOSTAPD_CHAN_ACS = 2, /* ACS work being performed */ 62 }; 63 64 struct hostapd_probereq_cb { 65 int (*cb)(void *ctx, const u8 *sa, const u8 *da, const u8 *bssid, 66 const u8 *ie, size_t ie_len, int ssi_signal); 67 void *ctx; 68 }; 69 70 #define HOSTAPD_RATE_BASIC 0x00000001 71 72 struct hostapd_rate_data { 73 int rate; /* rate in 100 kbps */ 74 int flags; /* HOSTAPD_RATE_ flags */ 75 }; 76 77 struct hostapd_frame_info { 78 u32 channel; 79 u32 datarate; 80 int ssi_signal; /* dBm */ 81 }; 82 83 enum wps_status { 84 WPS_STATUS_SUCCESS = 1, 85 WPS_STATUS_FAILURE 86 }; 87 88 enum pbc_status { 89 WPS_PBC_STATUS_DISABLE, 90 WPS_PBC_STATUS_ACTIVE, 91 WPS_PBC_STATUS_TIMEOUT, 92 WPS_PBC_STATUS_OVERLAP 93 }; 94 95 struct wps_stat { 96 enum wps_status status; 97 enum wps_error_indication failure_reason; 98 enum pbc_status pbc_status; 99 u8 peer_addr[ETH_ALEN]; 100 }; 101 102 103 /** 104 * struct hostapd_data - hostapd per-BSS data structure 105 */ 106 struct hostapd_data { 107 struct hostapd_iface *iface; 108 struct hostapd_config *iconf; 109 struct hostapd_bss_config *conf; 110 int interface_added; /* virtual interface added for this BSS */ 111 unsigned int started:1; 112 unsigned int disabled:1; 113 unsigned int reenable_beacon:1; 114 115 u8 own_addr[ETH_ALEN]; 116 117 int num_sta; /* number of entries in sta_list */ 118 struct sta_info *sta_list; /* STA info list head */ 119 #define STA_HASH_SIZE 256 120 #define STA_HASH(sta) (sta[5]) 121 struct sta_info *sta_hash[STA_HASH_SIZE]; 122 123 /* 124 * Bitfield for indicating which AIDs are allocated. Only AID values 125 * 1-2007 are used and as such, the bit at index 0 corresponds to AID 126 * 1. 127 */ 128 #define AID_WORDS ((2008 + 31) / 32) 129 u32 sta_aid[AID_WORDS]; 130 131 const struct wpa_driver_ops *driver; 132 void *drv_priv; 133 134 void (*new_assoc_sta_cb)(struct hostapd_data *hapd, 135 struct sta_info *sta, int reassoc); 136 137 void *msg_ctx; /* ctx for wpa_msg() calls */ 138 void *msg_ctx_parent; /* parent interface ctx for wpa_msg() calls */ 139 140 struct radius_client_data *radius; 141 u64 acct_session_id; 142 struct radius_das_data *radius_das; 143 144 struct iapp_data *iapp; 145 146 struct hostapd_cached_radius_acl *acl_cache; 147 struct hostapd_acl_query_data *acl_queries; 148 149 struct wpa_authenticator *wpa_auth; 150 struct eapol_authenticator *eapol_auth; 151 152 struct rsn_preauth_interface *preauth_iface; 153 struct os_reltime michael_mic_failure; 154 int michael_mic_failures; 155 int tkip_countermeasures; 156 157 int ctrl_sock; 158 struct dl_list ctrl_dst; 159 160 void *ssl_ctx; 161 void *eap_sim_db_priv; 162 struct radius_server_data *radius_srv; 163 struct dl_list erp_keys; /* struct eap_server_erp_key */ 164 165 int parameter_set_count; 166 167 /* Time Advertisement */ 168 u8 time_update_counter; 169 struct wpabuf *time_adv; 170 171 #ifdef CONFIG_FULL_DYNAMIC_VLAN 172 struct full_dynamic_vlan *full_dynamic_vlan; 173 #endif /* CONFIG_FULL_DYNAMIC_VLAN */ 174 175 struct l2_packet_data *l2; 176 struct wps_context *wps; 177 178 int beacon_set_done; 179 struct wpabuf *wps_beacon_ie; 180 struct wpabuf *wps_probe_resp_ie; 181 #ifdef CONFIG_WPS 182 unsigned int ap_pin_failures; 183 unsigned int ap_pin_failures_consecutive; 184 struct upnp_wps_device_sm *wps_upnp; 185 unsigned int ap_pin_lockout_time; 186 187 struct wps_stat wps_stats; 188 #endif /* CONFIG_WPS */ 189 190 struct hostapd_probereq_cb *probereq_cb; 191 size_t num_probereq_cb; 192 193 void (*public_action_cb)(void *ctx, const u8 *buf, size_t len, 194 int freq); 195 void *public_action_cb_ctx; 196 void (*public_action_cb2)(void *ctx, const u8 *buf, size_t len, 197 int freq); 198 void *public_action_cb2_ctx; 199 200 int (*vendor_action_cb)(void *ctx, const u8 *buf, size_t len, 201 int freq); 202 void *vendor_action_cb_ctx; 203 204 void (*wps_reg_success_cb)(void *ctx, const u8 *mac_addr, 205 const u8 *uuid_e); 206 void *wps_reg_success_cb_ctx; 207 208 void (*wps_event_cb)(void *ctx, enum wps_event event, 209 union wps_event_data *data); 210 void *wps_event_cb_ctx; 211 212 void (*sta_authorized_cb)(void *ctx, const u8 *mac_addr, 213 int authorized, const u8 *p2p_dev_addr); 214 void *sta_authorized_cb_ctx; 215 216 void (*setup_complete_cb)(void *ctx); 217 void *setup_complete_cb_ctx; 218 219 void (*new_psk_cb)(void *ctx, const u8 *mac_addr, 220 const u8 *p2p_dev_addr, const u8 *psk, 221 size_t psk_len); 222 void *new_psk_cb_ctx; 223 224 /* channel switch parameters */ 225 struct hostapd_freq_params cs_freq_params; 226 u8 cs_count; 227 int cs_block_tx; 228 unsigned int cs_c_off_beacon; 229 unsigned int cs_c_off_proberesp; 230 int csa_in_progress; 231 unsigned int cs_c_off_ecsa_beacon; 232 unsigned int cs_c_off_ecsa_proberesp; 233 234 /* BSS Load */ 235 unsigned int bss_load_update_timeout; 236 237 #ifdef CONFIG_P2P 238 struct p2p_data *p2p; 239 struct p2p_group *p2p_group; 240 struct wpabuf *p2p_beacon_ie; 241 struct wpabuf *p2p_probe_resp_ie; 242 243 /* Number of non-P2P association stations */ 244 int num_sta_no_p2p; 245 246 /* Periodic NoA (used only when no non-P2P clients in the group) */ 247 int noa_enabled; 248 int noa_start; 249 int noa_duration; 250 #endif /* CONFIG_P2P */ 251 #ifdef CONFIG_INTERWORKING 252 size_t gas_frag_limit; 253 #endif /* CONFIG_INTERWORKING */ 254 #ifdef CONFIG_PROXYARP 255 struct l2_packet_data *sock_dhcp; 256 struct l2_packet_data *sock_ndisc; 257 #endif /* CONFIG_PROXYARP */ 258 #ifdef CONFIG_MESH 259 int num_plinks; 260 int max_plinks; 261 void (*mesh_sta_free_cb)(struct hostapd_data *hapd, 262 struct sta_info *sta); 263 struct wpabuf *mesh_pending_auth; 264 struct os_reltime mesh_pending_auth_time; 265 u8 mesh_required_peer[ETH_ALEN]; 266 #endif /* CONFIG_MESH */ 267 268 #ifdef CONFIG_SQLITE 269 struct hostapd_eap_user tmp_eap_user; 270 #endif /* CONFIG_SQLITE */ 271 272 #ifdef CONFIG_SAE 273 /** Key used for generating SAE anti-clogging tokens */ 274 u8 sae_token_key[8]; 275 struct os_reltime last_sae_token_key_update; 276 int dot11RSNASAERetransPeriod; /* msec */ 277 #endif /* CONFIG_SAE */ 278 279 #ifdef CONFIG_TESTING_OPTIONS 280 unsigned int ext_mgmt_frame_handling:1; 281 unsigned int ext_eapol_frame_io:1; 282 283 struct l2_packet_data *l2_test; 284 #endif /* CONFIG_TESTING_OPTIONS */ 285 286 #ifdef CONFIG_MBO 287 unsigned int mbo_assoc_disallow; 288 #endif /* CONFIG_MBO */ 289 }; 290 291 292 struct hostapd_sta_info { 293 struct dl_list list; 294 u8 addr[ETH_ALEN]; 295 struct os_reltime last_seen; 296 }; 297 298 /** 299 * struct hostapd_iface - hostapd per-interface data structure 300 */ 301 struct hostapd_iface { 302 struct hapd_interfaces *interfaces; 303 void *owner; 304 char *config_fname; 305 struct hostapd_config *conf; 306 char phy[16]; /* Name of the PHY (radio) */ 307 308 enum hostapd_iface_state { 309 HAPD_IFACE_UNINITIALIZED, 310 HAPD_IFACE_DISABLED, 311 HAPD_IFACE_COUNTRY_UPDATE, 312 HAPD_IFACE_ACS, 313 HAPD_IFACE_HT_SCAN, 314 HAPD_IFACE_DFS, 315 HAPD_IFACE_ENABLED 316 } state; 317 318 #ifdef CONFIG_MESH 319 struct mesh_conf *mconf; 320 #endif /* CONFIG_MESH */ 321 322 size_t num_bss; 323 struct hostapd_data **bss; 324 325 unsigned int wait_channel_update:1; 326 unsigned int cac_started:1; 327 #ifdef CONFIG_FST 328 struct fst_iface *fst; 329 const struct wpabuf *fst_ies; 330 #endif /* CONFIG_FST */ 331 332 /* 333 * When set, indicates that the driver will handle the AP 334 * teardown: delete global keys, station keys, and stations. 335 */ 336 unsigned int driver_ap_teardown:1; 337 338 /* 339 * When set, indicates that this interface is part of list of 340 * interfaces that need to be started together (synchronously). 341 */ 342 unsigned int need_to_start_in_sync:1; 343 344 /* Ready to start but waiting for other interfaces to become ready. */ 345 unsigned int ready_to_start_in_sync:1; 346 347 int num_ap; /* number of entries in ap_list */ 348 struct ap_info *ap_list; /* AP info list head */ 349 struct ap_info *ap_hash[STA_HASH_SIZE]; 350 351 u64 drv_flags; 352 353 /* SMPS modes supported by the driver (WPA_DRIVER_SMPS_MODE_*) */ 354 unsigned int smps_modes; 355 356 /* 357 * A bitmap of supported protocols for probe response offload. See 358 * struct wpa_driver_capa in driver.h 359 */ 360 unsigned int probe_resp_offloads; 361 362 /* extended capabilities supported by the driver */ 363 const u8 *extended_capa, *extended_capa_mask; 364 unsigned int extended_capa_len; 365 366 unsigned int drv_max_acl_mac_addrs; 367 368 struct hostapd_hw_modes *hw_features; 369 int num_hw_features; 370 struct hostapd_hw_modes *current_mode; 371 /* Rates that are currently used (i.e., filtered copy of 372 * current_mode->channels */ 373 int num_rates; 374 struct hostapd_rate_data *current_rates; 375 int *basic_rates; 376 int freq; 377 378 u16 hw_flags; 379 380 /* Number of associated Non-ERP stations (i.e., stations using 802.11b 381 * in 802.11g BSS) */ 382 int num_sta_non_erp; 383 384 /* Number of associated stations that do not support Short Slot Time */ 385 int num_sta_no_short_slot_time; 386 387 /* Number of associated stations that do not support Short Preamble */ 388 int num_sta_no_short_preamble; 389 390 int olbc; /* Overlapping Legacy BSS Condition */ 391 392 /* Number of HT associated stations that do not support greenfield */ 393 int num_sta_ht_no_gf; 394 395 /* Number of associated non-HT stations */ 396 int num_sta_no_ht; 397 398 /* Number of HT associated stations 20 MHz */ 399 int num_sta_ht_20mhz; 400 401 /* Number of HT40 intolerant stations */ 402 int num_sta_ht40_intolerant; 403 404 /* Overlapping BSS information */ 405 int olbc_ht; 406 407 u16 ht_op_mode; 408 409 /* surveying helpers */ 410 411 /* number of channels surveyed */ 412 unsigned int chans_surveyed; 413 414 /* lowest observed noise floor in dBm */ 415 s8 lowest_nf; 416 417 /* channel utilization calculation */ 418 u64 last_channel_time; 419 u64 last_channel_time_busy; 420 u8 channel_utilization; 421 422 /* eCSA IE will be added only if operating class is specified */ 423 u8 cs_oper_class; 424 425 unsigned int dfs_cac_ms; 426 struct os_reltime dfs_cac_start; 427 428 /* Latched with the actual secondary channel information and will be 429 * used while juggling between HT20 and HT40 modes. */ 430 int secondary_ch; 431 432 #ifdef CONFIG_ACS 433 unsigned int acs_num_completed_scans; 434 #endif /* CONFIG_ACS */ 435 436 void (*scan_cb)(struct hostapd_iface *iface); 437 int num_ht40_scan_tries; 438 439 struct dl_list sta_seen; /* struct hostapd_sta_info */ 440 unsigned int num_sta_seen; 441 }; 442 443 /* hostapd.c */ 444 int hostapd_for_each_interface(struct hapd_interfaces *interfaces, 445 int (*cb)(struct hostapd_iface *iface, 446 void *ctx), void *ctx); 447 int hostapd_reload_config(struct hostapd_iface *iface); 448 struct hostapd_data * 449 hostapd_alloc_bss_data(struct hostapd_iface *hapd_iface, 450 struct hostapd_config *conf, 451 struct hostapd_bss_config *bss); 452 int hostapd_setup_interface(struct hostapd_iface *iface); 453 int hostapd_setup_interface_complete(struct hostapd_iface *iface, int err); 454 void hostapd_interface_deinit(struct hostapd_iface *iface); 455 void hostapd_interface_free(struct hostapd_iface *iface); 456 struct hostapd_iface * hostapd_init(struct hapd_interfaces *interfaces, 457 const char *config_file); 458 struct hostapd_iface * 459 hostapd_interface_init_bss(struct hapd_interfaces *interfaces, const char *phy, 460 const char *config_fname, int debug); 461 void hostapd_new_assoc_sta(struct hostapd_data *hapd, struct sta_info *sta, 462 int reassoc); 463 void hostapd_interface_deinit_free(struct hostapd_iface *iface); 464 int hostapd_enable_iface(struct hostapd_iface *hapd_iface); 465 int hostapd_reload_iface(struct hostapd_iface *hapd_iface); 466 int hostapd_disable_iface(struct hostapd_iface *hapd_iface); 467 int hostapd_add_iface(struct hapd_interfaces *ifaces, char *buf); 468 int hostapd_remove_iface(struct hapd_interfaces *ifaces, char *buf); 469 void hostapd_channel_list_updated(struct hostapd_iface *iface, int initiator); 470 void hostapd_set_state(struct hostapd_iface *iface, enum hostapd_iface_state s); 471 const char * hostapd_state_text(enum hostapd_iface_state s); 472 int hostapd_csa_in_progress(struct hostapd_iface *iface); 473 int hostapd_switch_channel(struct hostapd_data *hapd, 474 struct csa_settings *settings); 475 void 476 hostapd_switch_channel_fallback(struct hostapd_iface *iface, 477 const struct hostapd_freq_params *freq_params); 478 void hostapd_cleanup_cs_params(struct hostapd_data *hapd); 479 void hostapd_periodic_iface(struct hostapd_iface *iface); 480 481 /* utils.c */ 482 int hostapd_register_probereq_cb(struct hostapd_data *hapd, 483 int (*cb)(void *ctx, const u8 *sa, 484 const u8 *da, const u8 *bssid, 485 const u8 *ie, size_t ie_len, 486 int ssi_signal), 487 void *ctx); 488 void hostapd_prune_associations(struct hostapd_data *hapd, const u8 *addr); 489 490 /* drv_callbacks.c (TODO: move to somewhere else?) */ 491 int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr, 492 const u8 *ie, size_t ielen, int reassoc); 493 void hostapd_notif_disassoc(struct hostapd_data *hapd, const u8 *addr); 494 void hostapd_event_sta_low_ack(struct hostapd_data *hapd, const u8 *addr); 495 void hostapd_event_connect_failed_reason(struct hostapd_data *hapd, 496 const u8 *addr, int reason_code); 497 int hostapd_probe_req_rx(struct hostapd_data *hapd, const u8 *sa, const u8 *da, 498 const u8 *bssid, const u8 *ie, size_t ie_len, 499 int ssi_signal); 500 void hostapd_event_ch_switch(struct hostapd_data *hapd, int freq, int ht, 501 int offset, int width, int cf1, int cf2); 502 struct survey_results; 503 void hostapd_event_get_survey(struct hostapd_iface *iface, 504 struct survey_results *survey_results); 505 void hostapd_acs_channel_selected(struct hostapd_data *hapd, 506 struct acs_selected_channels *acs_res); 507 508 const struct hostapd_eap_user * 509 hostapd_get_eap_user(struct hostapd_data *hapd, const u8 *identity, 510 size_t identity_len, int phase2); 511 512 struct hostapd_data * hostapd_get_iface(struct hapd_interfaces *interfaces, 513 const char *ifname); 514 515 #ifdef CONFIG_FST 516 void fst_hostapd_fill_iface_obj(struct hostapd_data *hapd, 517 struct fst_wpa_obj *iface_obj); 518 #endif /* CONFIG_FST */ 519 520 #endif /* HOSTAPD_H */ 521
