1 /*
2 * Driver interaction with Linux nl80211/cfg80211 - definitions
3 * Copyright (c) 2002-2014, Jouni Malinen <j@w1.fi>
4 * Copyright (c) 2003-2004, Instant802 Networks, Inc.
5 * Copyright (c) 2005-2006, Devicescape Software, Inc.
6 * Copyright (c) 2007, Johannes Berg <johannes@sipsolutions.net>
7 * Copyright (c) 2009-2010, Atheros Communications
8 *
9 * This software may be distributed under the terms of the BSD license.
10 * See README for more details.
11 */
12
13 #ifndef DRIVER_NL80211_H
14 #define DRIVER_NL80211_H
15
16 #include "nl80211_copy.h"
17 #include "utils/list.h"
18 #include "driver.h"
19
20 #ifndef NL_CAPABILITY_VERSION_3_5_0
21 #define nla_nest_start(msg, attrtype) \
22 nla_nest_start(msg, NLA_F_NESTED | (attrtype))
23 #endif
24
25 struct nl80211_global {
26 void *ctx;
27 struct dl_list interfaces;
28 int if_add_ifindex;
29 u64 if_add_wdevid;
30 int if_add_wdevid_set;
31 struct netlink_data *netlink;
32 struct nl_cb *nl_cb;
33 struct nl_sock *nl;
34 int nl80211_id;
35 unsigned int nl80211_maxattr;
36 int nlctrl_id;
37 int ioctl_sock; /* socket for ioctl() use */
38
39 struct nl_sock *nl_event;
40 };
41
42 struct nl80211_wiphy_data {
43 struct dl_list list;
44 struct dl_list bsss;
45 struct dl_list drvs;
46
47 struct nl_sock *nl_beacons;
48 struct nl_cb *nl_cb;
49
50 int wiphy_idx;
51 };
52
53 #define NL80211_DRV_LINK_ID_NA (-1)
54
55 struct i802_link {
56 unsigned int beacon_set:1;
57
58 int freq;
59 int bandwidth;
60 u8 addr[ETH_ALEN];
61 void *ctx;
62 };
63
64 struct i802_bss {
65 struct wpa_driver_nl80211_data *drv;
66 struct i802_bss *next;
67
68 u16 valid_links;
69 struct i802_link links[MAX_NUM_MLD_LINKS];
70 struct i802_link *flink;
71
72 int ifindex;
73 int br_ifindex;
74 u64 wdev_id;
75 char ifname[IFNAMSIZ + 1];
76 char brname[IFNAMSIZ];
77 unsigned int added_if_into_bridge:1;
78 unsigned int already_in_bridge:1;
79 unsigned int added_bridge:1;
80 unsigned int in_deinit:1;
81 unsigned int wdev_id_set:1;
82 unsigned int added_if:1;
83 unsigned int static_ap:1;
84
85 u8 addr[ETH_ALEN];
86 u8 prev_addr[ETH_ALEN];
87
88 int if_dynamic;
89
90 void *ctx;
91 struct nl_sock *nl_preq, *nl_mgmt, *nl_connect;
92 struct nl_cb *nl_cb;
93
94 struct nl80211_wiphy_data *wiphy_data;
95 struct dl_list wiphy_list;
96 u8 rand_addr[ETH_ALEN];
97 };
98
99 struct drv_nl80211_if_info {
100 int ifindex;
101 /* the AP/AP_VLAN iface that is in this bridge */
102 int reason;
103 };
104
105 struct wpa_driver_nl80211_data {
106 struct nl80211_global *global;
107 struct dl_list list;
108 struct dl_list wiphy_list;
109 char phyname[32];
110 unsigned int wiphy_idx;
111 u8 perm_addr[ETH_ALEN];
112 void *ctx;
113 int ifindex;
114 int if_removed;
115 int if_disabled;
116 int ignore_if_down_event;
117 struct rfkill_data *rfkill;
118 struct wpa_driver_capa capa;
119 u8 *extended_capa, *extended_capa_mask;
120 unsigned int extended_capa_len;
121 struct drv_nl80211_iface_capa {
122 enum nl80211_iftype iftype;
123 u8 *ext_capa, *ext_capa_mask;
124 unsigned int ext_capa_len;
125 u16 eml_capa;
126 u16 mld_capa_and_ops;
127 } iface_capa[NL80211_IFTYPE_MAX];
128 unsigned int num_iface_capa;
129
130 int has_capability;
131 int has_driver_key_mgmt;
132
133 int operstate;
134
135 int scan_complete_events;
136 enum scan_states {
137 NO_SCAN, SCAN_REQUESTED, SCAN_STARTED, SCAN_COMPLETED,
138 SCAN_ABORTED, SCHED_SCAN_STARTED, SCHED_SCAN_STOPPED,
139 SCHED_SCAN_RESULTS
140 } scan_state;
141
142 u8 auth_bssid[ETH_ALEN];
143 u8 auth_attempt_bssid[ETH_ALEN];
144 u8 bssid[ETH_ALEN];
145 u8 prev_bssid[ETH_ALEN];
146 int associated;
147 struct driver_sta_mlo_info sta_mlo_info;
148 u8 ssid[SSID_MAX_LEN];
149 size_t ssid_len;
150 enum nl80211_iftype nlmode;
151 enum nl80211_iftype ap_scan_as_station;
152 unsigned int assoc_freq;
153
154 int monitor_sock;
155 int monitor_ifidx;
156 int monitor_refcount;
157
158 unsigned int disabled_11b_rates:1;
159 unsigned int pending_remain_on_chan:1;
160 unsigned int in_interface_list:1;
161 unsigned int device_ap_sme:1;
162 unsigned int poll_command_supported:1;
163 unsigned int data_tx_status:1;
164 unsigned int scan_for_auth:1;
165 unsigned int retry_auth:1;
166 unsigned int use_monitor:1;
167 unsigned int hostapd:1;
168 unsigned int start_mode_sta:1;
169 unsigned int start_iface_up:1;
170 unsigned int test_use_roc_tx:1;
171 unsigned int ignore_deauth_event:1;
172 unsigned int vendor_cmd_test_avail:1;
173 unsigned int roaming_vendor_cmd_avail:1;
174 unsigned int dfs_vendor_cmd_avail:1;
175 unsigned int have_low_prio_scan:1;
176 unsigned int force_connect_cmd:1;
177 unsigned int addr_changed:1;
178 unsigned int get_features_vendor_cmd_avail:1;
179 unsigned int set_rekey_offload:1;
180 unsigned int p2p_go_ctwindow_supported:1;
181 unsigned int setband_vendor_cmd_avail:1;
182 unsigned int get_pref_freq_list:1;
183 unsigned int set_prob_oper_freq:1;
184 unsigned int scan_vendor_cmd_avail:1;
185 unsigned int connect_reassoc:1;
186 unsigned int set_wifi_conf_vendor_cmd_avail:1;
187 unsigned int fetch_bss_trans_status:1;
188 unsigned int roam_vendor_cmd_avail:1;
189 unsigned int add_sta_node_vendor_cmd_avail:1;
190 unsigned int control_port_ap:1;
191 unsigned int multicast_registrations:1;
192 unsigned int no_rrm:1;
193 unsigned int get_sta_info_vendor_cmd_avail:1;
194 unsigned int fils_discovery:1;
195 unsigned int unsol_bcast_probe_resp:1;
196 unsigned int qca_do_acs:1;
197 unsigned int brcm_do_acs:1;
198 unsigned int uses_6ghz:1;
199 unsigned int uses_s1g:1;
200 unsigned int secure_ranging_ctx_vendor_cmd_avail:1;
201 unsigned int puncturing:1;
202 unsigned int qca_ap_allowed_freqs:1;
203
204 u32 ignore_next_local_disconnect;
205 u32 ignore_next_local_deauth;
206
207 u64 vendor_scan_cookie;
208 u64 remain_on_chan_cookie;
209 u64 send_frame_cookie;
210 int send_frame_link_id;
211 #define MAX_SEND_FRAME_COOKIES 20
212 u64 send_frame_cookies[MAX_SEND_FRAME_COOKIES];
213 unsigned int num_send_frame_cookies;
214 u64 eapol_tx_cookie;
215 int eapol_tx_link_id;
216
217 unsigned int last_mgmt_freq;
218
219 struct wpa_driver_scan_filter *filter_ssids;
220 size_t num_filter_ssids;
221
222 struct i802_bss *first_bss;
223
224 int eapol_tx_sock;
225
226 int eapol_sock; /* socket for EAPOL frames */
227
228 struct nl_sock *rtnl_sk; /* nl_sock for NETLINK_ROUTE */
229
230 struct drv_nl80211_if_info default_if_indices[16];
231 struct drv_nl80211_if_info *if_indices;
232 int num_if_indices;
233
234 /* From failed authentication command */
235 int auth_freq;
236 u8 auth_bssid_[ETH_ALEN];
237 u8 auth_ssid[SSID_MAX_LEN];
238 size_t auth_ssid_len;
239 int auth_alg;
240 u8 *auth_ie;
241 size_t auth_ie_len;
242 u8 *auth_data;
243 size_t auth_data_len;
244 u8 auth_wep_key[4][16];
245 size_t auth_wep_key_len[4];
246 int auth_wep_tx_keyidx;
247 int auth_local_state_change;
248 int auth_p2p;
249 bool auth_mld;
250 u8 auth_mld_link_id;
251 u8 auth_ap_mld_addr[ETH_ALEN];
252
253 /*
254 * Tells whether the last scan issued from wpa_supplicant was a normal
255 * scan (NL80211_CMD_TRIGGER_SCAN) or a vendor scan
256 * (NL80211_CMD_VENDOR). 0 if no pending scan request.
257 */
258 int last_scan_cmd;
259 #ifdef CONFIG_DRIVER_NL80211_QCA
260 bool roam_indication_done;
261 u8 *pending_roam_data;
262 size_t pending_roam_data_len;
263 u8 *pending_t2lm_data;
264 size_t pending_t2lm_data_len;
265 u8 *pending_link_reconfig_data;
266 size_t pending_link_reconfig_data_len;
267 #endif /* CONFIG_DRIVER_NL80211_QCA */
268 };
269
270 struct nl_msg;
271
272 struct nl80211_err_info {
273 int link_id;
274 };
275
276 void * nl80211_cmd(struct wpa_driver_nl80211_data *drv,
277 struct nl_msg *msg, int flags, uint8_t cmd);
278 struct nl_msg * nl80211_cmd_msg(struct i802_bss *bss, int flags, uint8_t cmd);
279 struct nl_msg * nl80211_drv_msg(struct wpa_driver_nl80211_data *drv, int flags,
280 uint8_t cmd);
281 struct nl_msg * nl80211_bss_msg(struct i802_bss *bss, int flags, uint8_t cmd);
282
283 int send_and_recv(struct nl80211_global *global,
284 struct nl_sock *nl_handle, struct nl_msg *msg,
285 int (*valid_handler)(struct nl_msg *, void *),
286 void *valid_data,
287 int (*ack_handler_custom)(struct nl_msg *, void *),
288 void *ack_data,
289 struct nl80211_err_info *err_info);
290
291 static inline int
send_and_recv_cmd(struct wpa_driver_nl80211_data * drv,struct nl_msg * msg)292 send_and_recv_cmd(struct wpa_driver_nl80211_data *drv,
293 struct nl_msg *msg)
294 {
295 return send_and_recv(drv->global, drv->global->nl, msg,
296 NULL, NULL, NULL, NULL, NULL);
297 }
298
299 static inline int
send_and_recv_resp(struct wpa_driver_nl80211_data * drv,struct nl_msg * msg,int (* valid_handler)(struct nl_msg *,void *),void * valid_data)300 send_and_recv_resp(struct wpa_driver_nl80211_data *drv,
301 struct nl_msg *msg,
302 int (*valid_handler)(struct nl_msg *, void *),
303 void *valid_data)
304 {
305 return send_and_recv(drv->global, drv->global->nl, msg,
306 valid_handler, valid_data, NULL, NULL, NULL);
307 }
308
309 int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
310 const char *ifname, enum nl80211_iftype iftype,
311 const u8 *addr, int wds,
312 int (*handler)(struct nl_msg *, void *),
313 void *arg, int use_existing);
314 void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, int ifidx);
315 unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv);
316 int nl80211_get_assoc_ssid(struct wpa_driver_nl80211_data *drv, u8 *ssid);
317 enum chan_width convert2width(int width);
318 void nl80211_mark_disconnected(struct wpa_driver_nl80211_data *drv);
319 struct i802_bss * get_bss_ifindex(struct wpa_driver_nl80211_data *drv,
320 int ifindex);
321 int is_ap_interface(enum nl80211_iftype nlmode);
322 int is_sta_interface(enum nl80211_iftype nlmode);
323 int wpa_driver_nl80211_authenticate_retry(struct wpa_driver_nl80211_data *drv);
324 int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv,
325 const u8 *bssid,
326 struct hostap_sta_driver_data *data);
327 int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv,
328 struct wpa_signal_info *sig_change);
329 int nl80211_get_wiphy_index(struct i802_bss *bss);
330 int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
331 enum nl80211_iftype nlmode);
332 int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
333 const u8 *addr, int cmd, u16 reason_code,
334 int local_state_change,
335 struct i802_bss *bss);
336
337 int nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv);
338 void nl80211_remove_monitor_interface(struct wpa_driver_nl80211_data *drv);
339 int nl80211_send_monitor(struct wpa_driver_nl80211_data *drv,
340 const void *data, size_t len,
341 int encrypt, int noack);
342
343 int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv);
344 struct hostapd_hw_modes *
345 nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags,
346 u8 *dfs_domain);
347
348 int process_global_event(struct nl_msg *msg, void *arg);
349 int process_bss_event(struct nl_msg *msg, void *arg);
350
351 const char * nl80211_iftype_str(enum nl80211_iftype mode);
352
353 void nl80211_restore_ap_mode(struct i802_bss *bss);
354 struct i802_link * nl80211_get_link(struct i802_bss *bss, s8 link_id);
355
nl80211_link_valid(u16 links,s8 link_id)356 static inline bool nl80211_link_valid(u16 links, s8 link_id)
357 {
358 if (link_id < 0 || link_id >= MAX_NUM_MLD_LINKS)
359 return false;
360
361 if (links & BIT(link_id))
362 return true;
363
364 return false;
365 }
366
367
368 static inline bool
nl80211_attr_supported(struct wpa_driver_nl80211_data * drv,unsigned int attr)369 nl80211_attr_supported(struct wpa_driver_nl80211_data *drv, unsigned int attr)
370 {
371 return attr <= drv->global->nl80211_maxattr;
372 }
373
374 #ifdef ANDROID
375 int android_nl_socket_set_nonblocking(struct nl_sock *handle);
376 int android_pno_start(struct i802_bss *bss,
377 struct wpa_driver_scan_params *params);
378 int android_pno_stop(struct i802_bss *bss);
379 extern int wpa_driver_nl80211_driver_cmd(void *priv, char *cmd, char *buf,
380 size_t buf_len);
381 extern int wpa_driver_nl80211_driver_event(struct wpa_driver_nl80211_data *drv,
382 u32 vendor_id, u32 subcmd,
383 u8 *data, size_t len);
384
385
386 #ifdef ANDROID_P2P
387 int wpa_driver_set_p2p_noa(void *priv, u8 count, int start, int duration);
388 int wpa_driver_get_p2p_noa(void *priv, u8 *buf, size_t len);
389 int wpa_driver_set_p2p_ps(void *priv, int legacy_ps, int opp_ps, int ctwindow);
390 int wpa_driver_set_ap_wps_p2p_ie(void *priv, const struct wpabuf *beacon,
391 const struct wpabuf *proberesp,
392 const struct wpabuf *assocresp);
393 #endif /* ANDROID_P2P */
394 #endif /* ANDROID */
395
396
397 /* driver_nl80211_scan.c */
398
399 void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx);
400 int wpa_driver_nl80211_scan(struct i802_bss *bss,
401 struct wpa_driver_scan_params *params);
402 int wpa_driver_nl80211_sched_scan(void *priv,
403 struct wpa_driver_scan_params *params);
404 int wpa_driver_nl80211_stop_sched_scan(void *priv);
405 struct wpa_scan_results * wpa_driver_nl80211_get_scan_results(void *priv,
406 const u8 *bssid);
407 void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv);
408 int wpa_driver_nl80211_abort_scan(void *priv, u64 scan_cookie);
409 int wpa_driver_nl80211_vendor_scan(struct i802_bss *bss,
410 struct wpa_driver_scan_params *params);
411 int nl80211_set_default_scan_ies(void *priv, const u8 *ies, size_t ies_len);
412
413 #endif /* DRIVER_NL80211_H */
414