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 struct nl_sock *nl_event;
39 u8 p2p_perm_addr[ETH_ALEN];
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, *scan_link;
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 unsigned int disabled_11b_rates:1;
155 unsigned int pending_remain_on_chan:1;
156 unsigned int in_interface_list:1;
157 unsigned int device_ap_sme:1;
158 unsigned int poll_command_supported:1;
159 unsigned int data_tx_status:1;
160 unsigned int scan_for_auth:1;
161 unsigned int retry_auth:1;
162 unsigned int hostapd:1;
163 unsigned int start_mode_sta:1;
164 unsigned int start_iface_up:1;
165 unsigned int test_use_roc_tx:1;
166 unsigned int ignore_deauth_event:1;
167 unsigned int vendor_cmd_test_avail:1;
168 unsigned int roaming_vendor_cmd_avail:1;
169 unsigned int dfs_vendor_cmd_avail:1;
170 unsigned int have_low_prio_scan:1;
171 unsigned int force_connect_cmd:1;
172 unsigned int addr_changed:1;
173 unsigned int get_features_vendor_cmd_avail:1;
174 unsigned int set_rekey_offload:1;
175 unsigned int p2p_go_ctwindow_supported:1;
176 unsigned int setband_vendor_cmd_avail:1;
177 unsigned int get_pref_freq_list:1;
178 unsigned int set_prob_oper_freq:1;
179 unsigned int scan_vendor_cmd_avail:1;
180 unsigned int connect_reassoc:1;
181 unsigned int set_wifi_conf_vendor_cmd_avail:1;
182 unsigned int fetch_bss_trans_status:1;
183 unsigned int roam_vendor_cmd_avail:1;
184 unsigned int add_sta_node_vendor_cmd_avail:1;
185 unsigned int control_port_ap:1;
186 unsigned int multicast_registrations:1;
187 unsigned int no_rrm:1;
188 unsigned int get_sta_info_vendor_cmd_avail:1;
189 unsigned int fils_discovery:1;
190 unsigned int unsol_bcast_probe_resp:1;
191 unsigned int qca_do_acs:1;
192 unsigned int brcm_do_acs:1;
193 unsigned int uses_6ghz:1;
194 unsigned int uses_s1g:1;
195 unsigned int secure_ranging_ctx_vendor_cmd_avail:1;
196 unsigned int puncturing:1;
197 unsigned int qca_ap_allowed_freqs:1;
198 unsigned int connect_ext_vendor_cmd_avail:1;
199
200 u8 extra_bss_membership_selectors[8];
201
202 u32 ignore_next_local_disconnect;
203 u32 ignore_next_local_deauth;
204
205 u64 vendor_scan_cookie;
206 u64 remain_on_chan_cookie;
207 u64 send_frame_cookie;
208 int send_frame_link_id;
209 #define MAX_SEND_FRAME_COOKIES 20
210 u64 send_frame_cookies[MAX_SEND_FRAME_COOKIES];
211 unsigned int num_send_frame_cookies;
212 u64 eapol_tx_cookie;
213 int eapol_tx_link_id;
214
215 unsigned int last_mgmt_freq;
216
217 struct wpa_driver_scan_filter *filter_ssids;
218 size_t num_filter_ssids;
219
220 struct i802_bss *first_bss;
221
222 int eapol_tx_sock;
223
224 int eapol_sock; /* socket for EAPOL frames */
225
226 struct nl_sock *rtnl_sk; /* nl_sock for NETLINK_ROUTE */
227
228 struct drv_nl80211_if_info default_if_indices[16];
229 struct drv_nl80211_if_info *if_indices;
230 int num_if_indices;
231
232 /* From failed authentication command */
233 int auth_freq;
234 u8 auth_bssid_[ETH_ALEN];
235 u8 auth_ssid[SSID_MAX_LEN];
236 size_t auth_ssid_len;
237 int auth_alg;
238 u8 *auth_ie;
239 size_t auth_ie_len;
240 u8 *auth_data;
241 size_t auth_data_len;
242 u8 auth_wep_key[4][16];
243 size_t auth_wep_key_len[4];
244 int auth_wep_tx_keyidx;
245 int auth_local_state_change;
246 int auth_p2p;
247 bool auth_mld;
248 u8 auth_mld_link_id;
249 u8 auth_ap_mld_addr[ETH_ALEN];
250
251 /*
252 * Tells whether the last scan issued from wpa_supplicant was a normal
253 * scan (NL80211_CMD_TRIGGER_SCAN) or a vendor scan
254 * (NL80211_CMD_VENDOR). 0 if no pending scan request.
255 */
256 int last_scan_cmd;
257 #if defined(CONFIG_DRIVER_NL80211_BRCM) || defined(CONFIG_DRIVER_NL80211_SYNA)
258 unsigned int vendor_set_pmk:1; /* for legacy set_pmk method before NL80211_CMD_SET_PMK */
259 #endif /* CONFIG_DRIVER_NL80211_BRCM || CONFIG_DRIVER_NL80211_SYNA */
260 #ifdef CONFIG_DRIVER_NL80211_QCA
261 bool roam_indication_done;
262 u8 *pending_roam_data;
263 size_t pending_roam_data_len;
264 u8 *pending_t2lm_data;
265 size_t pending_t2lm_data_len;
266 u8 *pending_link_reconfig_data;
267 size_t pending_link_reconfig_data_len;
268 #endif /* CONFIG_DRIVER_NL80211_QCA */
269 };
270
271 struct nl_msg;
272
273 struct nl80211_err_info {
274 int link_id;
275 };
276
277 void * nl80211_cmd(struct wpa_driver_nl80211_data *drv,
278 struct nl_msg *msg, int flags, uint8_t cmd);
279 struct nl_msg * nl80211_cmd_msg(struct i802_bss *bss, int flags, uint8_t cmd);
280 struct nl_msg * nl80211_drv_msg(struct wpa_driver_nl80211_data *drv, int flags,
281 uint8_t cmd);
282 struct nl_msg * nl80211_bss_msg(struct i802_bss *bss, int flags, uint8_t cmd);
283
284 int send_and_recv_glb(struct nl80211_global *global,
285 struct wpa_driver_nl80211_data *drv, /* may be NULL */
286 struct nl_sock *nl_handle, struct nl_msg *msg,
287 int (*valid_handler)(struct nl_msg *, void *),
288 void *valid_data,
289 int (*ack_handler_custom)(struct nl_msg *, void *),
290 void *ack_data,
291 struct nl80211_err_info *err_info);
292
293 static inline int
send_and_recv(struct wpa_driver_nl80211_data * drv,struct nl_sock * nl_handle,struct nl_msg * msg,int (* valid_handler)(struct nl_msg *,void *),void * valid_data,int (* ack_handler_custom)(struct nl_msg *,void *),void * ack_data,struct nl80211_err_info * err_info)294 send_and_recv(struct wpa_driver_nl80211_data *drv,
295 struct nl_sock *nl_handle, struct nl_msg *msg,
296 int (*valid_handler)(struct nl_msg *, void *),
297 void *valid_data,
298 int (*ack_handler_custom)(struct nl_msg *, void *),
299 void *ack_data,
300 struct nl80211_err_info *err_info)
301 {
302 return send_and_recv_glb(drv->global, drv, nl_handle, msg,
303 valid_handler, valid_data,
304 ack_handler_custom, ack_data, err_info);
305 }
306
307 // This function is not used in supplicant anymore. But keeping this wrapper
308 // functions for libraries outside wpa_supplicant to build (For eg: lib_driver_cmd_XX)
309 static inline int
send_and_recv_msgs(struct wpa_driver_nl80211_data * drv,struct nl_msg * msg,int (* valid_handler)(struct nl_msg *,void *),void * valid_data,int (* ack_handler_custom)(struct nl_msg *,void *),void * ack_data)310 send_and_recv_msgs(struct wpa_driver_nl80211_data *drv,
311 struct nl_msg *msg,
312 int (*valid_handler)(struct nl_msg *, void *),
313 void *valid_data,
314 int (*ack_handler_custom)(struct nl_msg *, void *),
315 void *ack_data)
316 {
317 return send_and_recv(drv, drv->global->nl, msg,
318 valid_handler, valid_data,
319 ack_handler_custom, ack_data, NULL);
320 }
321
322 static inline int
send_and_recv_cmd(struct wpa_driver_nl80211_data * drv,struct nl_msg * msg)323 send_and_recv_cmd(struct wpa_driver_nl80211_data *drv,
324 struct nl_msg *msg)
325 {
326 return send_and_recv(drv, drv->global->nl, msg,
327 NULL, NULL, NULL, NULL, NULL);
328 }
329
330 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)331 send_and_recv_resp(struct wpa_driver_nl80211_data *drv,
332 struct nl_msg *msg,
333 int (*valid_handler)(struct nl_msg *, void *),
334 void *valid_data)
335 {
336 return send_and_recv(drv, drv->global->nl, msg,
337 valid_handler, valid_data, NULL, NULL, NULL);
338 }
339
340 int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
341 const char *ifname, enum nl80211_iftype iftype,
342 const u8 *addr, int wds,
343 int (*handler)(struct nl_msg *, void *),
344 void *arg, int use_existing);
345 void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, int ifidx);
346 unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv);
347 int nl80211_get_assoc_ssid(struct wpa_driver_nl80211_data *drv, u8 *ssid);
348 enum chan_width convert2width(int width);
349 void nl80211_mark_disconnected(struct wpa_driver_nl80211_data *drv);
350 struct i802_bss * get_bss_ifindex(struct wpa_driver_nl80211_data *drv,
351 int ifindex);
352 int is_ap_interface(enum nl80211_iftype nlmode);
353 int is_sta_interface(enum nl80211_iftype nlmode);
354 int wpa_driver_nl80211_authenticate_retry(struct wpa_driver_nl80211_data *drv);
355 int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv,
356 const u8 *bssid,
357 struct hostap_sta_driver_data *data);
358 int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv,
359 struct wpa_signal_info *sig_change);
360 int nl80211_get_wiphy_index(struct i802_bss *bss);
361 int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
362 enum nl80211_iftype nlmode);
363 int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
364 const u8 *addr, int cmd, u16 reason_code,
365 int local_state_change,
366 struct i802_bss *bss);
367
368 int nl80211_send_monitor(struct wpa_driver_nl80211_data *drv,
369 const void *data, size_t len,
370 int encrypt, int noack);
371
372 int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv);
373 struct hostapd_hw_modes *
374 nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags,
375 u8 *dfs_domain);
376
377 int process_global_event(struct nl_msg *msg, void *arg);
378 int process_bss_event(struct nl_msg *msg, void *arg);
379
380 const char * nl80211_iftype_str(enum nl80211_iftype mode);
381
382 void nl80211_restore_ap_mode(struct i802_bss *bss);
383 struct i802_link * nl80211_get_link(struct i802_bss *bss, s8 link_id);
384 u8 nl80211_get_link_id_from_link(struct i802_bss *bss, struct i802_link *link);
385 int nl80211_remove_link(struct i802_bss *bss, int link_id);
386
nl80211_link_valid(u16 links,s8 link_id)387 static inline bool nl80211_link_valid(u16 links, s8 link_id)
388 {
389 if (link_id < 0 || link_id >= MAX_NUM_MLD_LINKS)
390 return false;
391
392 if (links & BIT(link_id))
393 return true;
394
395 return false;
396 }
397
398
399 static inline bool
nl80211_attr_supported(struct wpa_driver_nl80211_data * drv,unsigned int attr)400 nl80211_attr_supported(struct wpa_driver_nl80211_data *drv, unsigned int attr)
401 {
402 return attr <= drv->global->nl80211_maxattr;
403 }
404
405 #ifdef ANDROID
406 int android_nl_socket_set_nonblocking(struct nl_sock *handle);
407 int android_pno_start(struct i802_bss *bss,
408 struct wpa_driver_scan_params *params);
409 int android_pno_stop(struct i802_bss *bss);
410 extern int wpa_driver_nl80211_driver_cmd(void *priv, char *cmd, char *buf,
411 size_t buf_len);
412 extern int wpa_driver_nl80211_driver_event(struct wpa_driver_nl80211_data *drv,
413 u32 vendor_id, u32 subcmd,
414 u8 *data, size_t len);
415
416
417 #ifdef ANDROID_P2P
418 int wpa_driver_set_p2p_noa(void *priv, u8 count, int start, int duration);
419 int wpa_driver_get_p2p_noa(void *priv, u8 *buf, size_t len);
420 int wpa_driver_set_p2p_ps(void *priv, int legacy_ps, int opp_ps, int ctwindow);
421 int wpa_driver_set_ap_wps_p2p_ie(void *priv, const struct wpabuf *beacon,
422 const struct wpabuf *proberesp,
423 const struct wpabuf *assocresp);
424 #endif /* ANDROID_P2P */
425 #endif /* ANDROID */
426
427
428 /* driver_nl80211_scan.c */
429
430 void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx);
431 int wpa_driver_nl80211_scan(struct i802_bss *bss,
432 struct wpa_driver_scan_params *params);
433 int wpa_driver_nl80211_sched_scan(void *priv,
434 struct wpa_driver_scan_params *params);
435 int wpa_driver_nl80211_stop_sched_scan(void *priv);
436 struct wpa_scan_results * wpa_driver_nl80211_get_scan_results(void *priv,
437 const u8 *bssid);
438 void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv);
439 int wpa_driver_nl80211_abort_scan(void *priv, u64 scan_cookie);
440 int wpa_driver_nl80211_vendor_scan(struct i802_bss *bss,
441 struct wpa_driver_scan_params *params);
442 int nl80211_set_default_scan_ies(void *priv, const u8 *ies, size_t ies_len);
443 struct hostapd_multi_hw_info *
444 nl80211_get_multi_hw_info(struct i802_bss *bss, unsigned int *num_multi_hws);
445 u32 get_nl80211_protocol_features(struct wpa_driver_nl80211_data *drv);
446
447 #endif /* DRIVER_NL80211_H */
448