1 /*
2 * hostapd / Station table
3 * Copyright (c) 2002-2011, 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 #ifdef CONFIG_MESH
13 /* needed for mesh_plink_state enum */
14 #include "common/defs.h"
15 #include "common/wpa_common.h"
16 #endif /* CONFIG_MESH */
17
18 #include "list.h"
19 #include "vlan.h"
20 #include "common/ieee802_11_defs.h"
21
22 /* STA flags */
23 #define WLAN_STA_AUTH BIT(0)
24 #define WLAN_STA_ASSOC BIT(1)
25 #define WLAN_STA_AUTHORIZED BIT(5)
26 #define WLAN_STA_PENDING_POLL BIT(6) /* pending activity poll not ACKed */
27 #define WLAN_STA_SHORT_PREAMBLE BIT(7)
28 #define WLAN_STA_PREAUTH BIT(8)
29 #define WLAN_STA_WMM BIT(9)
30 #define WLAN_STA_MFP BIT(10)
31 #define WLAN_STA_HT BIT(11)
32 #define WLAN_STA_WPS BIT(12)
33 #define WLAN_STA_MAYBE_WPS BIT(13)
34 #define WLAN_STA_WDS BIT(14)
35 #define WLAN_STA_ASSOC_REQ_OK BIT(15)
36 #define WLAN_STA_WPS2 BIT(16)
37 #define WLAN_STA_GAS BIT(17)
38 #define WLAN_STA_VHT BIT(18)
39 #define WLAN_STA_WNM_SLEEP_MODE BIT(19)
40 #define WLAN_STA_VHT_OPMODE_ENABLED BIT(20)
41 #define WLAN_STA_VENDOR_VHT BIT(21)
42 #define WLAN_STA_PENDING_FILS_ERP BIT(22)
43 #define WLAN_STA_PENDING_DISASSOC_CB BIT(29)
44 #define WLAN_STA_PENDING_DEAUTH_CB BIT(30)
45 #define WLAN_STA_NONERP BIT(31)
46
47 /* Maximum number of supported rates (from both Supported Rates and Extended
48 * Supported Rates IEs). */
49 #define WLAN_SUPP_RATES_MAX 32
50
51
52 struct mbo_non_pref_chan_info {
53 struct mbo_non_pref_chan_info *next;
54 u8 op_class;
55 u8 pref;
56 u8 reason_code;
57 u8 num_channels;
58 u8 channels[];
59 };
60
61 struct pending_eapol_rx {
62 struct wpabuf *buf;
63 struct os_reltime rx_time;
64 };
65
66 struct sta_info {
67 struct sta_info *next; /* next entry in sta list */
68 struct sta_info *hnext; /* next entry in hash table list */
69 u8 addr[6];
70 be32 ipaddr;
71 struct dl_list ip6addr; /* list head for struct ip6addr */
72 u16 aid; /* STA's unique AID (1 .. 2007) or 0 if not yet assigned */
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
120 u16 auth_alg;
121
122 enum {
123 STA_NULLFUNC = 0, STA_DISASSOC, STA_DEAUTH, STA_REMOVE,
124 STA_DISASSOC_FROM_CLI
125 } timeout_next;
126
127 u16 deauth_reason;
128 u16 disassoc_reason;
129
130 /* IEEE 802.1X related data */
131 struct eapol_state_machine *eapol_sm;
132
133 struct pending_eapol_rx *pending_eapol_rx;
134
135 u64 acct_session_id;
136 struct os_reltime acct_session_start;
137 int acct_session_started;
138 int acct_terminate_cause; /* Acct-Terminate-Cause */
139 int acct_interim_interval; /* Acct-Interim-Interval */
140 unsigned int acct_interim_errors;
141
142 /* For extending 32-bit driver counters to 64-bit counters */
143 u32 last_rx_bytes_hi;
144 u32 last_rx_bytes_lo;
145 u32 last_tx_bytes_hi;
146 u32 last_tx_bytes_lo;
147
148 u8 *challenge; /* IEEE 802.11 Shared Key Authentication Challenge */
149
150 struct wpa_state_machine *wpa_sm;
151 struct rsn_preauth_interface *preauth_iface;
152
153 int vlan_id; /* 0: none, >0: VID */
154 struct vlan_description *vlan_desc;
155 int vlan_id_bound; /* updated by ap_sta_bind_vlan() */
156 /* PSKs from RADIUS authentication server */
157 struct hostapd_sta_wpa_psk_short *psk;
158
159 char *identity; /* User-Name from RADIUS */
160 char *radius_cui; /* Chargeable-User-Identity from RADIUS */
161
162 struct ieee80211_ht_capabilities *ht_capabilities;
163 struct ieee80211_vht_capabilities *vht_capabilities;
164 u8 vht_opmode;
165
166 #ifdef CONFIG_IEEE80211W
167 int sa_query_count; /* number of pending SA Query requests;
168 * 0 = no SA Query in progress */
169 int sa_query_timed_out;
170 u8 *sa_query_trans_id; /* buffer of WLAN_SA_QUERY_TR_ID_LEN *
171 * sa_query_count octets of pending SA Query
172 * transaction identifiers */
173 struct os_reltime sa_query_start;
174 #endif /* CONFIG_IEEE80211W */
175
176 #ifdef CONFIG_INTERWORKING
177 #define GAS_DIALOG_MAX 8 /* Max concurrent dialog number */
178 struct gas_dialog_info *gas_dialog;
179 u8 gas_dialog_next;
180 #endif /* CONFIG_INTERWORKING */
181
182 struct wpabuf *wps_ie; /* WPS IE from (Re)Association Request */
183 struct wpabuf *p2p_ie; /* P2P IE from (Re)Association Request */
184 struct wpabuf *hs20_ie; /* HS 2.0 IE from (Re)Association Request */
185 u8 remediation_method;
186 char *remediation_url; /* HS 2.0 Subscription Remediation Server URL */
187 struct wpabuf *hs20_deauth_req;
188 char *hs20_session_info_url;
189 int hs20_disassoc_timer;
190 #ifdef CONFIG_FST
191 struct wpabuf *mb_ies; /* MB IEs from (Re)Association Request */
192 #endif /* CONFIG_FST */
193
194 struct os_reltime connected_time;
195
196 #ifdef CONFIG_SAE
197 struct sae_data *sae;
198 unsigned int mesh_sae_pmksa_caching:1;
199 #endif /* CONFIG_SAE */
200
201 u32 session_timeout; /* valid only if session_timeout_set == 1 */
202
203 /* Last Authentication/(Re)Association Request/Action frame sequence
204 * control */
205 u16 last_seq_ctrl;
206 /* Last Authentication/(Re)Association Request/Action frame subtype */
207 u8 last_subtype;
208
209 #ifdef CONFIG_MBO
210 u8 cell_capa; /* 0 = unknown (not an MBO STA); otherwise,
211 * enum mbo_cellular_capa values */
212 struct mbo_non_pref_chan_info *non_pref_chan;
213 #endif /* CONFIG_MBO */
214
215 u8 *supp_op_classes; /* Supported Operating Classes element, if
216 * received, starting from the Length field */
217
218 u8 rrm_enabled_capa[5];
219
220 #ifdef CONFIG_TAXONOMY
221 struct wpabuf *probe_ie_taxonomy;
222 struct wpabuf *assoc_ie_taxonomy;
223 #endif /* CONFIG_TAXONOMY */
224
225 #ifdef CONFIG_FILS
226 u8 fils_snonce[FILS_NONCE_LEN];
227 u8 fils_session[FILS_SESSION_LEN];
228 u8 *fils_pending_assoc_req;
229 size_t fils_pending_assoc_req_len;
230 unsigned int fils_pending_assoc_is_reassoc:1;
231 unsigned int fils_dhcp_rapid_commit_proxy:1;
232 struct wpabuf *fils_hlp_resp;
233 struct wpabuf *hlp_dhcp_discover;
234 #endif /* CONFIG_FILS */
235 };
236
237
238 /* Default value for maximum station inactivity. After AP_MAX_INACTIVITY has
239 * passed since last received frame from the station, a nullfunc data frame is
240 * sent to the station. If this frame is not acknowledged and no other frames
241 * have been received, the station will be disassociated after
242 * AP_DISASSOC_DELAY seconds. Similarly, the station will be deauthenticated
243 * after AP_DEAUTH_DELAY seconds has passed after disassociation. */
244 #define AP_MAX_INACTIVITY (5 * 60)
245 #define AP_DISASSOC_DELAY (3)
246 #define AP_DEAUTH_DELAY (1)
247 /* Number of seconds to keep STA entry with Authenticated flag after it has
248 * been disassociated. */
249 #define AP_MAX_INACTIVITY_AFTER_DISASSOC (1 * 30)
250 /* Number of seconds to keep STA entry after it has been deauthenticated. */
251 #define AP_MAX_INACTIVITY_AFTER_DEAUTH (1 * 5)
252
253
254 struct hostapd_data;
255
256 int ap_for_each_sta(struct hostapd_data *hapd,
257 int (*cb)(struct hostapd_data *hapd, struct sta_info *sta,
258 void *ctx),
259 void *ctx);
260 struct sta_info * ap_get_sta(struct hostapd_data *hapd, const u8 *sta);
261 struct sta_info * ap_get_sta_p2p(struct hostapd_data *hapd, const u8 *addr);
262 void ap_sta_hash_add(struct hostapd_data *hapd, struct sta_info *sta);
263 void ap_free_sta(struct hostapd_data *hapd, struct sta_info *sta);
264 void ap_sta_ip6addr_del(struct hostapd_data *hapd, struct sta_info *sta);
265 void hostapd_free_stas(struct hostapd_data *hapd);
266 void ap_handle_timer(void *eloop_ctx, void *timeout_ctx);
267 void ap_sta_replenish_timeout(struct hostapd_data *hapd, struct sta_info *sta,
268 u32 session_timeout);
269 void ap_sta_session_timeout(struct hostapd_data *hapd, struct sta_info *sta,
270 u32 session_timeout);
271 void ap_sta_no_session_timeout(struct hostapd_data *hapd,
272 struct sta_info *sta);
273 void ap_sta_session_warning_timeout(struct hostapd_data *hapd,
274 struct sta_info *sta, int warning_time);
275 struct sta_info * ap_sta_add(struct hostapd_data *hapd, const u8 *addr);
276 void ap_sta_disassociate(struct hostapd_data *hapd, struct sta_info *sta,
277 u16 reason);
278 void ap_sta_deauthenticate(struct hostapd_data *hapd, struct sta_info *sta,
279 u16 reason);
280 #ifdef CONFIG_WPS
281 int ap_sta_wps_cancel(struct hostapd_data *hapd,
282 struct sta_info *sta, void *ctx);
283 #endif /* CONFIG_WPS */
284 int ap_sta_bind_vlan(struct hostapd_data *hapd, struct sta_info *sta);
285 int ap_sta_set_vlan(struct hostapd_data *hapd, struct sta_info *sta,
286 struct vlan_description *vlan_desc);
287 void ap_sta_start_sa_query(struct hostapd_data *hapd, struct sta_info *sta);
288 void ap_sta_stop_sa_query(struct hostapd_data *hapd, struct sta_info *sta);
289 int ap_check_sa_query_timeout(struct hostapd_data *hapd, struct sta_info *sta);
290 void ap_sta_disconnect(struct hostapd_data *hapd, struct sta_info *sta,
291 const u8 *addr, u16 reason);
292
293 void ap_sta_set_authorized(struct hostapd_data *hapd,
294 struct sta_info *sta, int authorized);
ap_sta_is_authorized(struct sta_info * sta)295 static inline int ap_sta_is_authorized(struct sta_info *sta)
296 {
297 return sta->flags & WLAN_STA_AUTHORIZED;
298 }
299
300 void ap_sta_deauth_cb(struct hostapd_data *hapd, struct sta_info *sta);
301 void ap_sta_disassoc_cb(struct hostapd_data *hapd, struct sta_info *sta);
302 void ap_sta_clear_disconnect_timeouts(struct hostapd_data *hapd,
303 struct sta_info *sta);
304
305 int ap_sta_flags_txt(u32 flags, char *buf, size_t buflen);
306 void ap_sta_delayed_1x_auth_fail_disconnect(struct hostapd_data *hapd,
307 struct sta_info *sta);
308 int ap_sta_pending_delayed_1x_auth_fail_disconnect(struct hostapd_data *hapd,
309 struct sta_info *sta);
310
311 #endif /* STA_INFO_H */
312