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_PENDING_DISASSOC_CB BIT(29)
  40 #define WLAN_STA_PENDING_DEAUTH_CB BIT(30)
  41 #define WLAN_STA_NONERP BIT(31)
  42
  43 /* Maximum number of supported rates (from both Supported Rates and Extended
  44  * Supported Rates IEs). */
  45 #define WLAN_SUPP_RATES_MAX 32
  46
  47 struct hostapd_data;
  48
  49 struct mbo_non_pref_chan_info {
  50         struct mbo_non_pref_chan_info *next;
  51         u8 op_class;
  52         u8 pref;
  53         u8 reason_code;
  54         u8 num_channels;
  55         u8 channels[];
  56 };
  57
  58 struct pending_eapol_rx {
  59         struct wpabuf *buf;
  60         struct os_reltime rx_time;
  61 };
  62
  63 struct sta_info {
  64         struct sta_info *next; /* next entry in sta list */
  65         struct sta_info *hnext; /* next entry in hash table list */
  66         u8 addr[6];
  67         be32 ipaddr;
  68         struct dl_list ip6addr; /* list head for struct ip6addr */
  69         u16 aid; /* STA's unique AID (1 .. 2007) or 0 if not yet assigned */
  70         u16 disconnect_reason_code; /* RADIUS server override */
  71         u32 flags; /* Bitfield of WLAN_STA_* */
  72         u16 capability;
  73         u16 listen_interval; /* or beacon_int for APs */
  74         u8 supported_rates[WLAN_SUPP_RATES_MAX];
  75         int supported_rates_len;
  76         u8 qosinfo; /* Valid when WLAN_STA_WMM is set */
  77
  78 #ifdef CONFIG_MESH
  79         enum mesh_plink_state plink_state;
  80         u16 peer_lid;
  81         u16 my_lid;
  82         u16 peer_aid;
  83         u16 mpm_close_reason;
  84         int mpm_retries;
  85         u8 my_nonce[WPA_NONCE_LEN];
  86         u8 peer_nonce[WPA_NONCE_LEN];
  87         u8 aek[32];     /* SHA256 digest length */
  88         u8 mtk[WPA_TK_MAX_LEN];
  89         size_t mtk_len;
  90         u8 mgtk_rsc[6];
  91         u8 mgtk_key_id;
  92         u8 mgtk[WPA_TK_MAX_LEN];
  93         size_t mgtk_len;
  94         u8 igtk_rsc[6];
  95         u8 igtk[WPA_TK_MAX_LEN];
  96         size_t igtk_len;
  97         u16 igtk_key_id;
  98         u8 sae_auth_retry;
  99 #endif /* CONFIG_MESH */
 100
 101         unsigned int nonerp_set:1;
 102         unsigned int no_short_slot_time_set:1;
 103         unsigned int no_short_preamble_set:1;
 104         unsigned int no_ht_gf_set:1;
 105         unsigned int no_ht_set:1;
 106         unsigned int ht40_intolerant_set:1;
 107         unsigned int ht_20mhz_set:1;
 108         unsigned int no_p2p_set:1;
 109         unsigned int qos_map_enabled:1;
 110         unsigned int remediation:1;
 111         unsigned int hs20_deauth_requested:1;
 112         unsigned int session_timeout_set:1;
 113         unsigned int radius_das_match:1;
 114         unsigned int ecsa_supported:1;
 115         unsigned int added_unassoc:1;
 116         unsigned int pending_wds_enable:1;
 117         unsigned int power_capab:1;
 118         unsigned int agreed_to_steer:1;
 119         unsigned int hs20_t_c_filtering:1;
 120
 121         u16 auth_alg;
 122
 123         enum {
 124                 STA_NULLFUNC = 0, STA_DISASSOC, STA_DEAUTH, STA_REMOVE,
 125                 STA_DISASSOC_FROM_CLI
 126         } timeout_next;
 127
 128         u16 deauth_reason;
 129         u16 disassoc_reason;
 130
 131         /* IEEE 802.1X related data */
 132         struct eapol_state_machine *eapol_sm;
 133
 134         struct pending_eapol_rx *pending_eapol_rx;
 135
 136         u64 acct_session_id;
 137         struct os_reltime acct_session_start;
 138         int acct_session_started;
 139         int acct_terminate_cause; /* Acct-Terminate-Cause */
 140         int acct_interim_interval; /* Acct-Interim-Interval */
 141         unsigned int acct_interim_errors;
 142
 143         /* For extending 32-bit driver counters to 64-bit counters */
 144         u32 last_rx_bytes_hi;
 145         u32 last_rx_bytes_lo;
 146         u32 last_tx_bytes_hi;
 147         u32 last_tx_bytes_lo;
 148
 149         u8 *challenge; /* IEEE 802.11 Shared Key Authentication Challenge */
 150
 151         struct wpa_state_machine *wpa_sm;
 152         struct rsn_preauth_interface *preauth_iface;
 153
 154         int vlan_id; /* 0: none, >0: VID */
 155         struct vlan_description *vlan_desc;
 156         int vlan_id_bound; /* updated by ap_sta_bind_vlan() */
 157          /* PSKs from RADIUS authentication server */
 158         struct hostapd_sta_wpa_psk_short *psk;
 159
 160         char *identity; /* User-Name from RADIUS */
 161         char *radius_cui; /* Chargeable-User-Identity from RADIUS */
 162
 163         struct ieee80211_ht_capabilities *ht_capabilities;
 164         struct ieee80211_vht_capabilities *vht_capabilities;
 165         u8 vht_opmode;
 166
 167 #ifdef CONFIG_IEEE80211W
 168         int sa_query_count; /* number of pending SA Query requests;
 169                              * 0 = no SA Query in progress */
 170         int sa_query_timed_out;
 171         u8 *sa_query_trans_id; /* buffer of WLAN_SA_QUERY_TR_ID_LEN *
 172                                 * sa_query_count octets of pending SA Query
 173                                 * transaction identifiers */
 174         struct os_reltime sa_query_start;
 175 #endif /* CONFIG_IEEE80211W */
 176
 177 #if defined(CONFIG_INTERWORKING) || defined(CONFIG_DPP)
 178 #define GAS_DIALOG_MAX 8 /* Max concurrent dialog number */
 179         struct gas_dialog_info *gas_dialog;
 180         u8 gas_dialog_next;
 181 #endif /* CONFIG_INTERWORKING || CONFIG_DPP */
 182
 183         struct wpabuf *wps_ie; /* WPS IE from (Re)Association Request */
 184         struct wpabuf *p2p_ie; /* P2P IE from (Re)Association Request */
 185         struct wpabuf *hs20_ie; /* HS 2.0 IE from (Re)Association Request */
 186         /* Hotspot 2.0 Roaming Consortium from (Re)Association Request */
 187         struct wpabuf *roaming_consortium;
 188         u8 remediation_method;
 189         char *remediation_url; /* HS 2.0 Subscription Remediation Server URL */
 190         struct wpabuf *hs20_deauth_req;
 191         char *hs20_session_info_url;
 192         int hs20_disassoc_timer;
 193 #ifdef CONFIG_FST
 194         struct wpabuf *mb_ies; /* MB IEs from (Re)Association Request */
 195 #endif /* CONFIG_FST */
 196
 197         struct os_reltime connected_time;
 198
 199 #ifdef CONFIG_SAE
 200         struct sae_data *sae;
 201         unsigned int mesh_sae_pmksa_caching:1;
 202 #endif /* CONFIG_SAE */
 203
 204         /* valid only if session_timeout_set == 1 */
 205         struct os_reltime session_timeout;
 206
 207         /* Last Authentication/(Re)Association Request/Action frame sequence
 208          * control */
 209         u16 last_seq_ctrl;
 210         /* Last Authentication/(Re)Association Request/Action frame subtype */
 211         u8 last_subtype;
 212
 213 #ifdef CONFIG_MBO
 214         u8 cell_capa; /* 0 = unknown (not an MBO STA); otherwise,
 215                        * enum mbo_cellular_capa values */
 216         struct mbo_non_pref_chan_info *non_pref_chan;
 217 #endif /* CONFIG_MBO */
 218
 219         u8 *supp_op_classes; /* Supported Operating Classes element, if
 220                               * received, starting from the Length field */
 221
 222         u8 rrm_enabled_capa[5];
 223
 224         s8 min_tx_power;
 225         s8 max_tx_power;
 226
 227 #ifdef CONFIG_TAXONOMY
 228         struct wpabuf *probe_ie_taxonomy;
 229         struct wpabuf *assoc_ie_taxonomy;
 230 #endif /* CONFIG_TAXONOMY */
 231
 232 #ifdef CONFIG_FILS
 233         u8 fils_snonce[FILS_NONCE_LEN];
 234         u8 fils_session[FILS_SESSION_LEN];
 235         u8 fils_erp_pmkid[PMKID_LEN];
 236         u8 *fils_pending_assoc_req;
 237         size_t fils_pending_assoc_req_len;
 238         unsigned int fils_pending_assoc_is_reassoc:1;
 239         unsigned int fils_dhcp_rapid_commit_proxy:1;
 240         unsigned int fils_erp_pmkid_set:1;
 241         unsigned int fils_drv_assoc_finish:1;
 242         struct wpabuf *fils_hlp_resp;
 243         struct wpabuf *hlp_dhcp_discover;
 244         void (*fils_pending_cb)(struct hostapd_data *hapd, struct sta_info *sta,
 245                                 u16 resp, struct wpabuf *data, int pub);
 246 #ifdef CONFIG_FILS_SK_PFS
 247         struct crypto_ecdh *fils_ecdh;
 248 #endif /* CONFIG_FILS_SK_PFS */
 249         struct wpabuf *fils_dh_ss;
 250         struct wpabuf *fils_g_sta;
 251 #endif /* CONFIG_FILS */
 252
 253 #ifdef CONFIG_OWE
 254         u8 *owe_pmk;
 255         size_t owe_pmk_len;
 256         struct crypto_ecdh *owe_ecdh;
 257         u16 owe_group;
 258 #endif /* CONFIG_OWE */
 259
 260         u8 *ext_capability;
 261         char *ifname_wds; /* WDS ifname, if in use */
 262
 263 #ifdef CONFIG_TESTING_OPTIONS
 264         enum wpa_alg last_tk_alg;
 265         int last_tk_key_idx;
 266         u8 last_tk[WPA_TK_MAX_LEN];
 267         size_t last_tk_len;
 268 #endif /* CONFIG_TESTING_OPTIONS */
 269 };
 270
 271
 272 /* Default value for maximum station inactivity. After AP_MAX_INACTIVITY has
 273  * passed since last received frame from the station, a nullfunc data frame is
 274  * sent to the station. If this frame is not acknowledged and no other frames
 275  * have been received, the station will be disassociated after
 276  * AP_DISASSOC_DELAY seconds. Similarly, the station will be deauthenticated
 277  * after AP_DEAUTH_DELAY seconds has passed after disassociation. */
 278 #define AP_MAX_INACTIVITY (5 * 60)
 279 #define AP_DISASSOC_DELAY (3)
 280 #define AP_DEAUTH_DELAY (1)
 281 /* Number of seconds to keep STA entry with Authenticated flag after it has
 282  * been disassociated. */
 283 #define AP_MAX_INACTIVITY_AFTER_DISASSOC (1 * 30)
 284 /* Number of seconds to keep STA entry after it has been deauthenticated. */
 285 #define AP_MAX_INACTIVITY_AFTER_DEAUTH (1 * 5)
 286
 287
 288 int ap_for_each_sta(struct hostapd_data *hapd,
 289                     int (*cb)(struct hostapd_data *hapd, struct sta_info *sta,
 290                               void *ctx),
 291                     void *ctx);
 292 struct sta_info * ap_get_sta(struct hostapd_data *hapd, const u8 *sta);
 293 struct sta_info * ap_get_sta_p2p(struct hostapd_data *hapd, const u8 *addr);
 294 void ap_sta_hash_add(struct hostapd_data *hapd, struct sta_info *sta);
 295 void ap_free_sta(struct hostapd_data *hapd, struct sta_info *sta);
 296 void ap_sta_ip6addr_del(struct hostapd_data *hapd, struct sta_info *sta);
 297 void hostapd_free_stas(struct hostapd_data *hapd);
 298 void ap_handle_timer(void *eloop_ctx, void *timeout_ctx);
 299 void ap_sta_replenish_timeout(struct hostapd_data *hapd, struct sta_info *sta,
 300                               u32 session_timeout);
 301 void ap_sta_session_timeout(struct hostapd_data *hapd, struct sta_info *sta,
 302                             u32 session_timeout);
 303 void ap_sta_no_session_timeout(struct hostapd_data *hapd,
 304                                struct sta_info *sta);
 305 void ap_sta_session_warning_timeout(struct hostapd_data *hapd,
 306                                     struct sta_info *sta, int warning_time);
 307 struct sta_info * ap_sta_add(struct hostapd_data *hapd, const u8 *addr);
 308 void ap_sta_disassociate(struct hostapd_data *hapd, struct sta_info *sta,
 309                          u16 reason);
 310 void ap_sta_deauthenticate(struct hostapd_data *hapd, struct sta_info *sta,
 311                            u16 reason);
 312 #ifdef CONFIG_WPS
 313 int ap_sta_wps_cancel(struct hostapd_data *hapd,
 314                       struct sta_info *sta, void *ctx);
 315 #endif /* CONFIG_WPS */
 316 int ap_sta_bind_vlan(struct hostapd_data *hapd, struct sta_info *sta);
 317 int ap_sta_set_vlan(struct hostapd_data *hapd, struct sta_info *sta,
 318                     struct vlan_description *vlan_desc);
 319 void ap_sta_start_sa_query(struct hostapd_data *hapd, struct sta_info *sta);
 320 void ap_sta_stop_sa_query(struct hostapd_data *hapd, struct sta_info *sta);
 321 int ap_check_sa_query_timeout(struct hostapd_data *hapd, struct sta_info *sta);
 322 void ap_sta_disconnect(struct hostapd_data *hapd, struct sta_info *sta,
 323                        const u8 *addr, u16 reason);
 324
 325 void ap_sta_set_authorized(struct hostapd_data *hapd,
 326                            struct sta_info *sta, int authorized);
 327 static inline int ap_sta_is_authorized(struct sta_info *sta)
 328 {
 329         return sta->flags & WLAN_STA_AUTHORIZED;
 330 }
 331
 332 void ap_sta_deauth_cb(struct hostapd_data *hapd, struct sta_info *sta);
 333 void ap_sta_disassoc_cb(struct hostapd_data *hapd, struct sta_info *sta);
 334 void ap_sta_clear_disconnect_timeouts(struct hostapd_data *hapd,
 335                                       struct sta_info *sta);
 336
 337 int ap_sta_flags_txt(u32 flags, char *buf, size_t buflen);
 338 void ap_sta_delayed_1x_auth_fail_disconnect(struct hostapd_data *hapd,
 339                                             struct sta_info *sta);
 340 int ap_sta_pending_delayed_1x_auth_fail_disconnect(struct hostapd_data *hapd,
 341                                                    struct sta_info *sta);
 342
 343 #endif /* STA_INFO_H */