1 /* 2 * hostapd / Initialization and configuration 3 * Copyright (c) 2002-2014, 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 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 int eloop_initialized; 57 }; 58 59 enum hostapd_chan_status { 60 HOSTAPD_CHAN_VALID = 0, /* channel is ready */ 61 HOSTAPD_CHAN_INVALID = 1, /* no usable channel found */ 62 HOSTAPD_CHAN_ACS = 2, /* ACS work being performed */ 63 }; 64 65 struct hostapd_probereq_cb { 66 int (*cb)(void *ctx, const u8 *sa, const u8 *da, const u8 *bssid, 67 const u8 *ie, size_t ie_len, int ssi_signal); 68 void *ctx; 69 }; 70 71 #define HOSTAPD_RATE_BASIC 0x00000001 72 73 struct hostapd_rate_data { 74 int rate; /* rate in 100 kbps */ 75 int flags; /* HOSTAPD_RATE_ flags */ 76 }; 77 78 struct hostapd_frame_info { 79 u32 channel; 80 u32 datarate; 81 int ssi_signal; /* dBm */ 82 }; 83 84 enum wps_status { 85 WPS_STATUS_SUCCESS = 1, 86 WPS_STATUS_FAILURE 87 }; 88 89 enum pbc_status { 90 WPS_PBC_STATUS_DISABLE, 91 WPS_PBC_STATUS_ACTIVE, 92 WPS_PBC_STATUS_TIMEOUT, 93 WPS_PBC_STATUS_OVERLAP 94 }; 95 96 struct wps_stat { 97 enum wps_status status; 98 enum wps_error_indication failure_reason; 99 enum pbc_status pbc_status; 100 u8 peer_addr[ETH_ALEN]; 101 }; 102 103 struct hostapd_neighbor_entry { 104 struct dl_list list; 105 u8 bssid[ETH_ALEN]; 106 struct wpa_ssid_value ssid; 107 struct wpabuf *nr; 108 struct wpabuf *lci; 109 struct wpabuf *civic; 110 /* LCI update time */ 111 struct os_time lci_date; 112 int stationary; 113 }; 114 115 /** 116 * struct hostapd_data - hostapd per-BSS data structure 117 */ 118 struct hostapd_data { 119 struct hostapd_iface *iface; 120 struct hostapd_config *iconf; 121 struct hostapd_bss_config *conf; 122 int interface_added; /* virtual interface added for this BSS */ 123 unsigned int started:1; 124 unsigned int disabled:1; 125 unsigned int reenable_beacon:1; 126 127 u8 own_addr[ETH_ALEN]; 128 129 int num_sta; /* number of entries in sta_list */ 130 struct sta_info *sta_list; /* STA info list head */ 131 #define STA_HASH_SIZE 256 132 #define STA_HASH(sta) (sta[5]) 133 struct sta_info *sta_hash[STA_HASH_SIZE]; 134 135 /* 136 * Bitfield for indicating which AIDs are allocated. Only AID values 137 * 1-2007 are used and as such, the bit at index 0 corresponds to AID 138 * 1. 139 */ 140 #define AID_WORDS ((2008 + 31) / 32) 141 u32 sta_aid[AID_WORDS]; 142 143 const struct wpa_driver_ops *driver; 144 void *drv_priv; 145 146 void (*new_assoc_sta_cb)(struct hostapd_data *hapd, 147 struct sta_info *sta, int reassoc); 148 149 void *msg_ctx; /* ctx for wpa_msg() calls */ 150 void *msg_ctx_parent; /* parent interface ctx for wpa_msg() calls */ 151 152 struct radius_client_data *radius; 153 u64 acct_session_id; 154 struct radius_das_data *radius_das; 155 156 struct iapp_data *iapp; 157 158 struct hostapd_cached_radius_acl *acl_cache; 159 struct hostapd_acl_query_data *acl_queries; 160 161 struct wpa_authenticator *wpa_auth; 162 struct eapol_authenticator *eapol_auth; 163 164 struct rsn_preauth_interface *preauth_iface; 165 struct os_reltime michael_mic_failure; 166 int michael_mic_failures; 167 int tkip_countermeasures; 168 169 int ctrl_sock; 170 struct dl_list ctrl_dst; 171 172 void *ssl_ctx; 173 void *eap_sim_db_priv; 174 struct radius_server_data *radius_srv; 175 struct dl_list erp_keys; /* struct eap_server_erp_key */ 176 177 int parameter_set_count; 178 179 /* Time Advertisement */ 180 u8 time_update_counter; 181 struct wpabuf *time_adv; 182 183 #ifdef CONFIG_FULL_DYNAMIC_VLAN 184 struct full_dynamic_vlan *full_dynamic_vlan; 185 #endif /* CONFIG_FULL_DYNAMIC_VLAN */ 186 187 struct l2_packet_data *l2; 188 struct wps_context *wps; 189 190 int beacon_set_done; 191 struct wpabuf *wps_beacon_ie; 192 struct wpabuf *wps_probe_resp_ie; 193 #ifdef CONFIG_WPS 194 unsigned int ap_pin_failures; 195 unsigned int ap_pin_failures_consecutive; 196 struct upnp_wps_device_sm *wps_upnp; 197 unsigned int ap_pin_lockout_time; 198 199 struct wps_stat wps_stats; 200 #endif /* CONFIG_WPS */ 201 202 struct hostapd_probereq_cb *probereq_cb; 203 size_t num_probereq_cb; 204 205 void (*public_action_cb)(void *ctx, const u8 *buf, size_t len, 206 int freq); 207 void *public_action_cb_ctx; 208 void (*public_action_cb2)(void *ctx, const u8 *buf, size_t len, 209 int freq); 210 void *public_action_cb2_ctx; 211 212 int (*vendor_action_cb)(void *ctx, const u8 *buf, size_t len, 213 int freq); 214 void *vendor_action_cb_ctx; 215 216 void (*wps_reg_success_cb)(void *ctx, const u8 *mac_addr, 217 const u8 *uuid_e); 218 void *wps_reg_success_cb_ctx; 219 220 void (*wps_event_cb)(void *ctx, enum wps_event event, 221 union wps_event_data *data); 222 void *wps_event_cb_ctx; 223 224 void (*sta_authorized_cb)(void *ctx, const u8 *mac_addr, 225 int authorized, const u8 *p2p_dev_addr); 226 void *sta_authorized_cb_ctx; 227 228 void (*setup_complete_cb)(void *ctx); 229 void *setup_complete_cb_ctx; 230 231 void (*new_psk_cb)(void *ctx, const u8 *mac_addr, 232 const u8 *p2p_dev_addr, const u8 *psk, 233 size_t psk_len); 234 void *new_psk_cb_ctx; 235 236 /* channel switch parameters */ 237 struct hostapd_freq_params cs_freq_params; 238 u8 cs_count; 239 int cs_block_tx; 240 unsigned int cs_c_off_beacon; 241 unsigned int cs_c_off_proberesp; 242 int csa_in_progress; 243 unsigned int cs_c_off_ecsa_beacon; 244 unsigned int cs_c_off_ecsa_proberesp; 245 246 /* BSS Load */ 247 unsigned int bss_load_update_timeout; 248 249 #ifdef CONFIG_P2P 250 struct p2p_data *p2p; 251 struct p2p_group *p2p_group; 252 struct wpabuf *p2p_beacon_ie; 253 struct wpabuf *p2p_probe_resp_ie; 254 255 /* Number of non-P2P association stations */ 256 int num_sta_no_p2p; 257 258 /* Periodic NoA (used only when no non-P2P clients in the group) */ 259 int noa_enabled; 260 int noa_start; 261 int noa_duration; 262 #endif /* CONFIG_P2P */ 263 #ifdef CONFIG_PROXYARP 264 struct l2_packet_data *sock_dhcp; 265 struct l2_packet_data *sock_ndisc; 266 #endif /* CONFIG_PROXYARP */ 267 #ifdef CONFIG_MESH 268 int num_plinks; 269 int max_plinks; 270 void (*mesh_sta_free_cb)(struct hostapd_data *hapd, 271 struct sta_info *sta); 272 struct wpabuf *mesh_pending_auth; 273 struct os_reltime mesh_pending_auth_time; 274 u8 mesh_required_peer[ETH_ALEN]; 275 #endif /* CONFIG_MESH */ 276 277 #ifdef CONFIG_SQLITE 278 struct hostapd_eap_user tmp_eap_user; 279 #endif /* CONFIG_SQLITE */ 280 281 #ifdef CONFIG_SAE 282 /** Key used for generating SAE anti-clogging tokens */ 283 u8 sae_token_key[8]; 284 struct os_reltime last_sae_token_key_update; 285 int dot11RSNASAERetransPeriod; /* msec */ 286 #endif /* CONFIG_SAE */ 287 288 #ifdef CONFIG_TESTING_OPTIONS 289 unsigned int ext_mgmt_frame_handling:1; 290 unsigned int ext_eapol_frame_io:1; 291 292 struct l2_packet_data *l2_test; 293 #endif /* CONFIG_TESTING_OPTIONS */ 294 295 #ifdef CONFIG_MBO 296 unsigned int mbo_assoc_disallow; 297 #endif /* CONFIG_MBO */ 298 299 struct dl_list nr_db; 300 301 u8 beacon_req_token; 302 u8 lci_req_token; 303 u8 range_req_token; 304 unsigned int lci_req_active:1; 305 unsigned int range_req_active:1; 306 307 int dhcp_sock; /* UDP socket used with the DHCP server */ 308 }; 309 310 311 struct hostapd_sta_info { 312 struct dl_list list; 313 u8 addr[ETH_ALEN]; 314 struct os_reltime last_seen; 315 int ssi_signal; 316 #ifdef CONFIG_TAXONOMY 317 struct wpabuf *probe_ie_taxonomy; 318 #endif /* CONFIG_TAXONOMY */ 319 }; 320 321 /** 322 * struct hostapd_iface - hostapd per-interface data structure 323 */ 324 struct hostapd_iface { 325 struct hapd_interfaces *interfaces; 326 void *owner; 327 char *config_fname; 328 struct hostapd_config *conf; 329 char phy[16]; /* Name of the PHY (radio) */ 330 331 enum hostapd_iface_state { 332 HAPD_IFACE_UNINITIALIZED, 333 HAPD_IFACE_DISABLED, 334 HAPD_IFACE_COUNTRY_UPDATE, 335 HAPD_IFACE_ACS, 336 HAPD_IFACE_HT_SCAN, 337 HAPD_IFACE_DFS, 338 HAPD_IFACE_ENABLED 339 } state; 340 341 #ifdef CONFIG_MESH 342 struct mesh_conf *mconf; 343 #endif /* CONFIG_MESH */ 344 345 size_t num_bss; 346 struct hostapd_data **bss; 347 348 unsigned int wait_channel_update:1; 349 unsigned int cac_started:1; 350 #ifdef CONFIG_FST 351 struct fst_iface *fst; 352 const struct wpabuf *fst_ies; 353 #endif /* CONFIG_FST */ 354 355 /* 356 * When set, indicates that the driver will handle the AP 357 * teardown: delete global keys, station keys, and stations. 358 */ 359 unsigned int driver_ap_teardown:1; 360 361 /* 362 * When set, indicates that this interface is part of list of 363 * interfaces that need to be started together (synchronously). 364 */ 365 unsigned int need_to_start_in_sync:1; 366 367 /* Ready to start but waiting for other interfaces to become ready. */ 368 unsigned int ready_to_start_in_sync:1; 369 370 int num_ap; /* number of entries in ap_list */ 371 struct ap_info *ap_list; /* AP info list head */ 372 struct ap_info *ap_hash[STA_HASH_SIZE]; 373 374 u64 drv_flags; 375 376 /* SMPS modes supported by the driver (WPA_DRIVER_SMPS_MODE_*) */ 377 unsigned int smps_modes; 378 379 /* 380 * A bitmap of supported protocols for probe response offload. See 381 * struct wpa_driver_capa in driver.h 382 */ 383 unsigned int probe_resp_offloads; 384 385 /* extended capabilities supported by the driver */ 386 const u8 *extended_capa, *extended_capa_mask; 387 unsigned int extended_capa_len; 388 389 unsigned int drv_max_acl_mac_addrs; 390 391 struct hostapd_hw_modes *hw_features; 392 int num_hw_features; 393 struct hostapd_hw_modes *current_mode; 394 /* Rates that are currently used (i.e., filtered copy of 395 * current_mode->channels */ 396 int num_rates; 397 struct hostapd_rate_data *current_rates; 398 int *basic_rates; 399 int freq; 400 401 u16 hw_flags; 402 403 /* Number of associated Non-ERP stations (i.e., stations using 802.11b 404 * in 802.11g BSS) */ 405 int num_sta_non_erp; 406 407 /* Number of associated stations that do not support Short Slot Time */ 408 int num_sta_no_short_slot_time; 409 410 /* Number of associated stations that do not support Short Preamble */ 411 int num_sta_no_short_preamble; 412 413 int olbc; /* Overlapping Legacy BSS Condition */ 414 415 /* Number of HT associated stations that do not support greenfield */ 416 int num_sta_ht_no_gf; 417 418 /* Number of associated non-HT stations */ 419 int num_sta_no_ht; 420 421 /* Number of HT associated stations 20 MHz */ 422 int num_sta_ht_20mhz; 423 424 /* Number of HT40 intolerant stations */ 425 int num_sta_ht40_intolerant; 426 427 /* Overlapping BSS information */ 428 int olbc_ht; 429 430 u16 ht_op_mode; 431 432 /* surveying helpers */ 433 434 /* number of channels surveyed */ 435 unsigned int chans_surveyed; 436 437 /* lowest observed noise floor in dBm */ 438 s8 lowest_nf; 439 440 /* channel utilization calculation */ 441 u64 last_channel_time; 442 u64 last_channel_time_busy; 443 u8 channel_utilization; 444 445 /* eCSA IE will be added only if operating class is specified */ 446 u8 cs_oper_class; 447 448 unsigned int dfs_cac_ms; 449 struct os_reltime dfs_cac_start; 450 451 /* Latched with the actual secondary channel information and will be 452 * used while juggling between HT20 and HT40 modes. */ 453 int secondary_ch; 454 455 #ifdef CONFIG_ACS 456 unsigned int acs_num_completed_scans; 457 #endif /* CONFIG_ACS */ 458 459 void (*scan_cb)(struct hostapd_iface *iface); 460 int num_ht40_scan_tries; 461 462 struct dl_list sta_seen; /* struct hostapd_sta_info */ 463 unsigned int num_sta_seen; 464 }; 465 466 /* hostapd.c */ 467 int hostapd_for_each_interface(struct hapd_interfaces *interfaces, 468 int (*cb)(struct hostapd_iface *iface, 469 void *ctx), void *ctx); 470 int hostapd_reload_config(struct hostapd_iface *iface); 471 struct hostapd_data * 472 hostapd_alloc_bss_data(struct hostapd_iface *hapd_iface, 473 struct hostapd_config *conf, 474 struct hostapd_bss_config *bss); 475 int hostapd_setup_interface(struct hostapd_iface *iface); 476 int hostapd_setup_interface_complete(struct hostapd_iface *iface, int err); 477 void hostapd_interface_deinit(struct hostapd_iface *iface); 478 void hostapd_interface_free(struct hostapd_iface *iface); 479 struct hostapd_iface * hostapd_alloc_iface(void); 480 struct hostapd_iface * hostapd_init(struct hapd_interfaces *interfaces, 481 const char *config_file); 482 struct hostapd_iface * 483 hostapd_interface_init_bss(struct hapd_interfaces *interfaces, const char *phy, 484 const char *config_fname, int debug); 485 void hostapd_new_assoc_sta(struct hostapd_data *hapd, struct sta_info *sta, 486 int reassoc); 487 void hostapd_interface_deinit_free(struct hostapd_iface *iface); 488 int hostapd_enable_iface(struct hostapd_iface *hapd_iface); 489 int hostapd_reload_iface(struct hostapd_iface *hapd_iface); 490 int hostapd_disable_iface(struct hostapd_iface *hapd_iface); 491 int hostapd_add_iface(struct hapd_interfaces *ifaces, char *buf); 492 int hostapd_remove_iface(struct hapd_interfaces *ifaces, char *buf); 493 void hostapd_channel_list_updated(struct hostapd_iface *iface, int initiator); 494 void hostapd_set_state(struct hostapd_iface *iface, enum hostapd_iface_state s); 495 const char * hostapd_state_text(enum hostapd_iface_state s); 496 int hostapd_csa_in_progress(struct hostapd_iface *iface); 497 int hostapd_switch_channel(struct hostapd_data *hapd, 498 struct csa_settings *settings); 499 void 500 hostapd_switch_channel_fallback(struct hostapd_iface *iface, 501 const struct hostapd_freq_params *freq_params); 502 void hostapd_cleanup_cs_params(struct hostapd_data *hapd); 503 void hostapd_periodic_iface(struct hostapd_iface *iface); 504 505 /* utils.c */ 506 int hostapd_register_probereq_cb(struct hostapd_data *hapd, 507 int (*cb)(void *ctx, const u8 *sa, 508 const u8 *da, const u8 *bssid, 509 const u8 *ie, size_t ie_len, 510 int ssi_signal), 511 void *ctx); 512 void hostapd_prune_associations(struct hostapd_data *hapd, const u8 *addr); 513 514 /* drv_callbacks.c (TODO: move to somewhere else?) */ 515 int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr, 516 const u8 *ie, size_t ielen, int reassoc); 517 void hostapd_notif_disassoc(struct hostapd_data *hapd, const u8 *addr); 518 void hostapd_event_sta_low_ack(struct hostapd_data *hapd, const u8 *addr); 519 void hostapd_event_connect_failed_reason(struct hostapd_data *hapd, 520 const u8 *addr, int reason_code); 521 int hostapd_probe_req_rx(struct hostapd_data *hapd, const u8 *sa, const u8 *da, 522 const u8 *bssid, const u8 *ie, size_t ie_len, 523 int ssi_signal); 524 void hostapd_event_ch_switch(struct hostapd_data *hapd, int freq, int ht, 525 int offset, int width, int cf1, int cf2); 526 struct survey_results; 527 void hostapd_event_get_survey(struct hostapd_iface *iface, 528 struct survey_results *survey_results); 529 void hostapd_acs_channel_selected(struct hostapd_data *hapd, 530 struct acs_selected_channels *acs_res); 531 532 const struct hostapd_eap_user * 533 hostapd_get_eap_user(struct hostapd_data *hapd, const u8 *identity, 534 size_t identity_len, int phase2); 535 536 struct hostapd_data * hostapd_get_iface(struct hapd_interfaces *interfaces, 537 const char *ifname); 538 539 #ifdef CONFIG_FST 540 void fst_hostapd_fill_iface_obj(struct hostapd_data *hapd, 541 struct fst_wpa_obj *iface_obj); 542 #endif /* CONFIG_FST */ 543 544 #endif /* HOSTAPD_H */ 545