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