1 /* 2 * hostapd / Station table 3 * Copyright (c) 2002-2017, 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 STA_INFO_H 10 #define STA_INFO_H 11 12 #include "common/defs.h" 13 #include "list.h" 14 #include "vlan.h" 15 #include "common/wpa_common.h" 16 #include "common/ieee802_11_defs.h" 17 #include "common/sae.h" 18 #include "crypto/sha384.h" 19 20 /* STA flags */ 21 #define WLAN_STA_AUTH BIT(0) 22 #define WLAN_STA_ASSOC BIT(1) 23 #define WLAN_STA_AUTHORIZED BIT(5) 24 #define WLAN_STA_PENDING_POLL BIT(6) /* pending activity poll not ACKed */ 25 #define WLAN_STA_SHORT_PREAMBLE BIT(7) 26 #define WLAN_STA_PREAUTH BIT(8) 27 #define WLAN_STA_WMM BIT(9) 28 #define WLAN_STA_MFP BIT(10) 29 #define WLAN_STA_HT BIT(11) 30 #define WLAN_STA_WPS BIT(12) 31 #define WLAN_STA_MAYBE_WPS BIT(13) 32 #define WLAN_STA_WDS BIT(14) 33 #define WLAN_STA_ASSOC_REQ_OK BIT(15) 34 #define WLAN_STA_WPS2 BIT(16) 35 #define WLAN_STA_GAS BIT(17) 36 #define WLAN_STA_VHT BIT(18) 37 #define WLAN_STA_WNM_SLEEP_MODE BIT(19) 38 #define WLAN_STA_VHT_OPMODE_ENABLED BIT(20) 39 #define WLAN_STA_VENDOR_VHT BIT(21) 40 #define WLAN_STA_PENDING_FILS_ERP BIT(22) 41 #define WLAN_STA_MULTI_AP BIT(23) 42 #define WLAN_STA_HE BIT(24) 43 #define WLAN_STA_6GHZ BIT(25) 44 #define WLAN_STA_PENDING_PASN_FILS_ERP BIT(26) 45 #define WLAN_STA_PENDING_DISASSOC_CB BIT(29) 46 #define WLAN_STA_PENDING_DEAUTH_CB BIT(30) 47 #define WLAN_STA_NONERP BIT(31) 48 49 /* Maximum number of supported rates (from both Supported Rates and Extended 50 * Supported Rates IEs). */ 51 #define WLAN_SUPP_RATES_MAX 32 52 53 struct hostapd_data; 54 55 struct mbo_non_pref_chan_info { 56 struct mbo_non_pref_chan_info *next; 57 u8 op_class; 58 u8 pref; 59 u8 reason_code; 60 u8 num_channels; 61 u8 channels[]; 62 }; 63 64 struct pending_eapol_rx { 65 struct wpabuf *buf; 66 struct os_reltime rx_time; 67 }; 68 69 enum pasn_fils_state { 70 PASN_FILS_STATE_NONE = 0, 71 PASN_FILS_STATE_PENDING_AS, 72 PASN_FILS_STATE_COMPLETE 73 }; 74 75 struct pasn_fils_data { 76 u8 state; 77 u8 nonce[FILS_NONCE_LEN]; 78 u8 anonce[FILS_NONCE_LEN]; 79 u8 session[FILS_SESSION_LEN]; 80 u8 erp_pmkid[PMKID_LEN]; 81 82 struct wpabuf *erp_resp; 83 }; 84 85 struct pasn_data { 86 int akmp; 87 int cipher; 88 u16 group; 89 u8 trans_seq; 90 u8 wrapped_data_format; 91 size_t kdk_len; 92 93 u8 hash[SHA384_MAC_LEN]; 94 struct wpa_ptk ptk; 95 struct crypto_ecdh *ecdh; 96 97 struct wpabuf *secret; 98 #ifdef CONFIG_SAE 99 struct sae_data sae; 100 #endif /* CONFIG_SAE */ 101 #ifdef CONFIG_FILS 102 struct pasn_fils_data fils; 103 #endif /* CONFIG_FILS */ 104 }; 105 106 struct sta_info { 107 struct sta_info *next; /* next entry in sta list */ 108 struct sta_info *hnext; /* next entry in hash table list */ 109 u8 addr[6]; 110 be32 ipaddr; 111 struct dl_list ip6addr; /* list head for struct ip6addr */ 112 u16 aid; /* STA's unique AID (1 .. 2007) or 0 if not yet assigned */ 113 u16 disconnect_reason_code; /* RADIUS server override */ 114 u32 flags; /* Bitfield of WLAN_STA_* */ 115 u16 capability; 116 u16 listen_interval; /* or beacon_int for APs */ 117 u8 supported_rates[WLAN_SUPP_RATES_MAX]; 118 int supported_rates_len; 119 u8 qosinfo; /* Valid when WLAN_STA_WMM is set */ 120 121 #ifdef CONFIG_MESH 122 enum mesh_plink_state plink_state; 123 u16 peer_lid; 124 u16 my_lid; 125 u16 peer_aid; 126 u16 mpm_close_reason; 127 int mpm_retries; 128 u8 my_nonce[WPA_NONCE_LEN]; 129 u8 peer_nonce[WPA_NONCE_LEN]; 130 u8 aek[32]; /* SHA256 digest length */ 131 u8 mtk[WPA_TK_MAX_LEN]; 132 size_t mtk_len; 133 u8 mgtk_rsc[6]; 134 u8 mgtk_key_id; 135 u8 mgtk[WPA_TK_MAX_LEN]; 136 size_t mgtk_len; 137 u8 igtk_rsc[6]; 138 u8 igtk[WPA_TK_MAX_LEN]; 139 size_t igtk_len; 140 u16 igtk_key_id; 141 u8 sae_auth_retry; 142 #endif /* CONFIG_MESH */ 143 144 unsigned int nonerp_set:1; 145 unsigned int no_short_slot_time_set:1; 146 unsigned int no_short_preamble_set:1; 147 unsigned int no_ht_gf_set:1; 148 unsigned int no_ht_set:1; 149 unsigned int ht40_intolerant_set:1; 150 unsigned int ht_20mhz_set:1; 151 unsigned int no_p2p_set:1; 152 unsigned int qos_map_enabled:1; 153 unsigned int remediation:1; 154 unsigned int hs20_deauth_requested:1; 155 unsigned int session_timeout_set:1; 156 unsigned int radius_das_match:1; 157 unsigned int ecsa_supported:1; 158 unsigned int added_unassoc:1; 159 unsigned int pending_wds_enable:1; 160 unsigned int power_capab:1; 161 unsigned int agreed_to_steer:1; 162 unsigned int hs20_t_c_filtering:1; 163 unsigned int ft_over_ds:1; 164 unsigned int external_dh_updated:1; 165 unsigned int post_csa_sa_query:1; 166 167 u16 auth_alg; 168 169 enum { 170 STA_NULLFUNC = 0, STA_DISASSOC, STA_DEAUTH, STA_REMOVE, 171 STA_DISASSOC_FROM_CLI 172 } timeout_next; 173 174 u16 deauth_reason; 175 u16 disassoc_reason; 176 177 /* IEEE 802.1X related data */ 178 struct eapol_state_machine *eapol_sm; 179 180 struct pending_eapol_rx *pending_eapol_rx; 181 182 u64 acct_session_id; 183 struct os_reltime acct_session_start; 184 int acct_session_started; 185 int acct_terminate_cause; /* Acct-Terminate-Cause */ 186 int acct_interim_interval; /* Acct-Interim-Interval */ 187 unsigned int acct_interim_errors; 188 189 /* For extending 32-bit driver counters to 64-bit counters */ 190 u32 last_rx_bytes_hi; 191 u32 last_rx_bytes_lo; 192 u32 last_tx_bytes_hi; 193 u32 last_tx_bytes_lo; 194 195 u8 *challenge; /* IEEE 802.11 Shared Key Authentication Challenge */ 196 197 struct wpa_state_machine *wpa_sm; 198 struct rsn_preauth_interface *preauth_iface; 199 200 int vlan_id; /* 0: none, >0: VID */ 201 struct vlan_description *vlan_desc; 202 int vlan_id_bound; /* updated by ap_sta_bind_vlan() */ 203 /* PSKs from RADIUS authentication server */ 204 struct hostapd_sta_wpa_psk_short *psk; 205 206 char *identity; /* User-Name from RADIUS */ 207 char *radius_cui; /* Chargeable-User-Identity from RADIUS */ 208 209 struct ieee80211_ht_capabilities *ht_capabilities; 210 struct ieee80211_vht_capabilities *vht_capabilities; 211 struct ieee80211_vht_operation *vht_operation; 212 u8 vht_opmode; 213 struct ieee80211_he_capabilities *he_capab; 214 size_t he_capab_len; 215 struct ieee80211_he_6ghz_band_cap *he_6ghz_capab; 216 217 int sa_query_count; /* number of pending SA Query requests; 218 * 0 = no SA Query in progress */ 219 int sa_query_timed_out; 220 u8 *sa_query_trans_id; /* buffer of WLAN_SA_QUERY_TR_ID_LEN * 221 * sa_query_count octets of pending SA Query 222 * transaction identifiers */ 223 struct os_reltime sa_query_start; 224 225 #if defined(CONFIG_INTERWORKING) || defined(CONFIG_DPP) 226 #define GAS_DIALOG_MAX 8 /* Max concurrent dialog number */ 227 struct gas_dialog_info *gas_dialog; 228 u8 gas_dialog_next; 229 #endif /* CONFIG_INTERWORKING || CONFIG_DPP */ 230 231 struct wpabuf *wps_ie; /* WPS IE from (Re)Association Request */ 232 struct wpabuf *p2p_ie; /* P2P IE from (Re)Association Request */ 233 struct wpabuf *hs20_ie; /* HS 2.0 IE from (Re)Association Request */ 234 /* Hotspot 2.0 Roaming Consortium from (Re)Association Request */ 235 struct wpabuf *roaming_consortium; 236 u8 remediation_method; 237 char *remediation_url; /* HS 2.0 Subscription Remediation Server URL */ 238 char *t_c_url; /* HS 2.0 Terms and Conditions Server URL */ 239 struct wpabuf *hs20_deauth_req; 240 char *hs20_session_info_url; 241 int hs20_disassoc_timer; 242 #ifdef CONFIG_FST 243 struct wpabuf *mb_ies; /* MB IEs from (Re)Association Request */ 244 #endif /* CONFIG_FST */ 245 246 struct os_reltime connected_time; 247 248 #ifdef CONFIG_SAE 249 struct sae_data *sae; 250 unsigned int mesh_sae_pmksa_caching:1; 251 #endif /* CONFIG_SAE */ 252 253 /* valid only if session_timeout_set == 1 */ 254 struct os_reltime session_timeout; 255 256 /* Last Authentication/(Re)Association Request/Action frame sequence 257 * control */ 258 u16 last_seq_ctrl; 259 /* Last Authentication/(Re)Association Request/Action frame subtype */ 260 u8 last_subtype; 261 262 #ifdef CONFIG_MBO 263 u8 cell_capa; /* 0 = unknown (not an MBO STA); otherwise, 264 * enum mbo_cellular_capa values */ 265 struct mbo_non_pref_chan_info *non_pref_chan; 266 int auth_rssi; /* Last Authentication frame RSSI */ 267 #endif /* CONFIG_MBO */ 268 269 u8 *supp_op_classes; /* Supported Operating Classes element, if 270 * received, starting from the Length field */ 271 272 u8 rrm_enabled_capa[5]; 273 274 s8 min_tx_power; 275 s8 max_tx_power; 276 277 #ifdef CONFIG_TAXONOMY 278 struct wpabuf *probe_ie_taxonomy; 279 struct wpabuf *assoc_ie_taxonomy; 280 #endif /* CONFIG_TAXONOMY */ 281 282 #ifdef CONFIG_FILS 283 u8 fils_snonce[FILS_NONCE_LEN]; 284 u8 fils_session[FILS_SESSION_LEN]; 285 u8 fils_erp_pmkid[PMKID_LEN]; 286 u8 *fils_pending_assoc_req; 287 size_t fils_pending_assoc_req_len; 288 unsigned int fils_pending_assoc_is_reassoc:1; 289 unsigned int fils_dhcp_rapid_commit_proxy:1; 290 unsigned int fils_erp_pmkid_set:1; 291 unsigned int fils_drv_assoc_finish:1; 292 struct wpabuf *fils_hlp_resp; 293 struct wpabuf *hlp_dhcp_discover; 294 void (*fils_pending_cb)(struct hostapd_data *hapd, struct sta_info *sta, 295 u16 resp, struct wpabuf *data, int pub); 296 #ifdef CONFIG_FILS_SK_PFS 297 struct crypto_ecdh *fils_ecdh; 298 #endif /* CONFIG_FILS_SK_PFS */ 299 struct wpabuf *fils_dh_ss; 300 struct wpabuf *fils_g_sta; 301 #endif /* CONFIG_FILS */ 302 303 #ifdef CONFIG_OWE 304 u8 *owe_pmk; 305 size_t owe_pmk_len; 306 struct crypto_ecdh *owe_ecdh; 307 u16 owe_group; 308 #endif /* CONFIG_OWE */ 309 310 u8 *ext_capability; 311 char *ifname_wds; /* WDS ifname, if in use */ 312 313 #ifdef CONFIG_DPP2 314 struct dpp_pfs *dpp_pfs; 315 #endif /* CONFIG_DPP2 */ 316 317 #ifdef CONFIG_TESTING_OPTIONS 318 enum wpa_alg last_tk_alg; 319 int last_tk_key_idx; 320 u8 last_tk[WPA_TK_MAX_LEN]; 321 size_t last_tk_len; 322 u8 *sae_postponed_commit; 323 size_t sae_postponed_commit_len; 324 #endif /* CONFIG_TESTING_OPTIONS */ 325 #ifdef CONFIG_AIRTIME_POLICY 326 unsigned int airtime_weight; 327 struct os_reltime backlogged_until; 328 #endif /* CONFIG_AIRTIME_POLICY */ 329 330 #ifdef CONFIG_PASN 331 struct pasn_data *pasn; 332 #endif /* CONFIG_PASN */ 333 }; 334 335 336 /* Default value for maximum station inactivity. After AP_MAX_INACTIVITY has 337 * passed since last received frame from the station, a nullfunc data frame is 338 * sent to the station. If this frame is not acknowledged and no other frames 339 * have been received, the station will be disassociated after 340 * AP_DISASSOC_DELAY seconds. Similarly, the station will be deauthenticated 341 * after AP_DEAUTH_DELAY seconds has passed after disassociation. */ 342 #define AP_MAX_INACTIVITY (5 * 60) 343 #define AP_DISASSOC_DELAY (3) 344 #define AP_DEAUTH_DELAY (1) 345 /* Number of seconds to keep STA entry with Authenticated flag after it has 346 * been disassociated. */ 347 #define AP_MAX_INACTIVITY_AFTER_DISASSOC (1 * 30) 348 /* Number of seconds to keep STA entry after it has been deauthenticated. */ 349 #define AP_MAX_INACTIVITY_AFTER_DEAUTH (1 * 5) 350 351 352 int ap_for_each_sta(struct hostapd_data *hapd, 353 int (*cb)(struct hostapd_data *hapd, struct sta_info *sta, 354 void *ctx), 355 void *ctx); 356 struct sta_info * ap_get_sta(struct hostapd_data *hapd, const u8 *sta); 357 struct sta_info * ap_get_sta_p2p(struct hostapd_data *hapd, const u8 *addr); 358 void ap_sta_hash_add(struct hostapd_data *hapd, struct sta_info *sta); 359 void ap_free_sta(struct hostapd_data *hapd, struct sta_info *sta); 360 void ap_sta_ip6addr_del(struct hostapd_data *hapd, struct sta_info *sta); 361 void hostapd_free_stas(struct hostapd_data *hapd); 362 void ap_handle_timer(void *eloop_ctx, void *timeout_ctx); 363 void ap_sta_replenish_timeout(struct hostapd_data *hapd, struct sta_info *sta, 364 u32 session_timeout); 365 void ap_sta_session_timeout(struct hostapd_data *hapd, struct sta_info *sta, 366 u32 session_timeout); 367 void ap_sta_no_session_timeout(struct hostapd_data *hapd, 368 struct sta_info *sta); 369 void ap_sta_session_warning_timeout(struct hostapd_data *hapd, 370 struct sta_info *sta, int warning_time); 371 struct sta_info * ap_sta_add(struct hostapd_data *hapd, const u8 *addr); 372 void ap_sta_disassociate(struct hostapd_data *hapd, struct sta_info *sta, 373 u16 reason); 374 void ap_sta_deauthenticate(struct hostapd_data *hapd, struct sta_info *sta, 375 u16 reason); 376 #ifdef CONFIG_WPS 377 int ap_sta_wps_cancel(struct hostapd_data *hapd, 378 struct sta_info *sta, void *ctx); 379 #endif /* CONFIG_WPS */ 380 int ap_sta_bind_vlan(struct hostapd_data *hapd, struct sta_info *sta); 381 int ap_sta_set_vlan(struct hostapd_data *hapd, struct sta_info *sta, 382 struct vlan_description *vlan_desc); 383 void ap_sta_start_sa_query(struct hostapd_data *hapd, struct sta_info *sta); 384 void ap_sta_stop_sa_query(struct hostapd_data *hapd, struct sta_info *sta); 385 int ap_check_sa_query_timeout(struct hostapd_data *hapd, struct sta_info *sta); 386 const char * ap_sta_wpa_get_keyid(struct hostapd_data *hapd, 387 struct sta_info *sta); 388 void ap_sta_disconnect(struct hostapd_data *hapd, struct sta_info *sta, 389 const u8 *addr, u16 reason); 390 391 void ap_sta_set_authorized(struct hostapd_data *hapd, 392 struct sta_info *sta, int authorized); 393 static inline int ap_sta_is_authorized(struct sta_info *sta) 394 { 395 return sta->flags & WLAN_STA_AUTHORIZED; 396 } 397 398 void ap_sta_deauth_cb(struct hostapd_data *hapd, struct sta_info *sta); 399 void ap_sta_disassoc_cb(struct hostapd_data *hapd, struct sta_info *sta); 400 void ap_sta_clear_disconnect_timeouts(struct hostapd_data *hapd, 401 struct sta_info *sta); 402 403 int ap_sta_flags_txt(u32 flags, char *buf, size_t buflen); 404 void ap_sta_delayed_1x_auth_fail_disconnect(struct hostapd_data *hapd, 405 struct sta_info *sta); 406 int ap_sta_pending_delayed_1x_auth_fail_disconnect(struct hostapd_data *hapd, 407 struct sta_info *sta); 408 int ap_sta_re_add(struct hostapd_data *hapd, struct sta_info *sta); 409 410 void ap_free_sta_pasn(struct hostapd_data *hapd, struct sta_info *sta); 411 412 #endif /* STA_INFO_H */ 413