src/ap/sta_info.h

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