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nl80211: Add a debug print for DEL_BEACON
[thirdparty/hostap.git] / src / drivers / driver_nl80211.c
1 /*
2 * Driver interaction with Linux nl80211/cfg80211
3 * Copyright (c) 2002-2012, 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 #include "includes.h"
14 #include <sys/ioctl.h>
15 #include <sys/types.h>
16 #include <sys/stat.h>
17 #include <fcntl.h>
18 #include <net/if.h>
19 #include <netlink/genl/genl.h>
20 #include <netlink/genl/family.h>
21 #include <netlink/genl/ctrl.h>
22 #include <linux/rtnetlink.h>
23 #include <netpacket/packet.h>
24 #include <linux/filter.h>
25 #include <linux/errqueue.h>
26 #include "nl80211_copy.h"
27
28 #include "common.h"
29 #include "eloop.h"
30 #include "utils/list.h"
31 #include "common/ieee802_11_defs.h"
32 #include "common/ieee802_11_common.h"
33 #include "l2_packet/l2_packet.h"
34 #include "netlink.h"
35 #include "linux_ioctl.h"
36 #include "radiotap.h"
37 #include "radiotap_iter.h"
38 #include "rfkill.h"
39 #include "driver.h"
40
41 #ifndef SO_WIFI_STATUS
42 # if defined(__sparc__)
43 # define SO_WIFI_STATUS 0x0025
44 # elif defined(__parisc__)
45 # define SO_WIFI_STATUS 0x4022
46 # else
47 # define SO_WIFI_STATUS 41
48 # endif
49
50 # define SCM_WIFI_STATUS SO_WIFI_STATUS
51 #endif
52
53 #ifndef SO_EE_ORIGIN_TXSTATUS
54 #define SO_EE_ORIGIN_TXSTATUS 4
55 #endif
56
57 #ifndef PACKET_TX_TIMESTAMP
58 #define PACKET_TX_TIMESTAMP 16
59 #endif
60
61 #ifdef ANDROID
62 #include "android_drv.h"
63 #endif /* ANDROID */
64 #ifdef CONFIG_LIBNL20
65 /* libnl 2.0 compatibility code */
66 #define nl_handle nl_sock
67 #define nl80211_handle_alloc nl_socket_alloc_cb
68 #define nl80211_handle_destroy nl_socket_free
69 #else
70 /*
71 * libnl 1.1 has a bug, it tries to allocate socket numbers densely
72 * but when you free a socket again it will mess up its bitmap and
73 * and use the wrong number the next time it needs a socket ID.
74 * Therefore, we wrap the handle alloc/destroy and add our own pid
75 * accounting.
76 */
77 static uint32_t port_bitmap[32] = { 0 };
78
79 static struct nl_handle *nl80211_handle_alloc(void *cb)
80 {
81 struct nl_handle *handle;
82 uint32_t pid = getpid() & 0x3FFFFF;
83 int i;
84
85 handle = nl_handle_alloc_cb(cb);
86
87 for (i = 0; i < 1024; i++) {
88 if (port_bitmap[i / 32] & (1 << (i % 32)))
89 continue;
90 port_bitmap[i / 32] |= 1 << (i % 32);
91 pid += i << 22;
92 break;
93 }
94
95 nl_socket_set_local_port(handle, pid);
96
97 return handle;
98 }
99
100 static void nl80211_handle_destroy(struct nl_handle *handle)
101 {
102 uint32_t port = nl_socket_get_local_port(handle);
103
104 port >>= 22;
105 port_bitmap[port / 32] &= ~(1 << (port % 32));
106
107 nl_handle_destroy(handle);
108 }
109 #endif /* CONFIG_LIBNL20 */
110
111
112 static struct nl_handle * nl_create_handle(struct nl_cb *cb, const char *dbg)
113 {
114 struct nl_handle *handle;
115
116 handle = nl80211_handle_alloc(cb);
117 if (handle == NULL) {
118 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
119 "callbacks (%s)", dbg);
120 return NULL;
121 }
122
123 if (genl_connect(handle)) {
124 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
125 "netlink (%s)", dbg);
126 nl80211_handle_destroy(handle);
127 return NULL;
128 }
129
130 return handle;
131 }
132
133
134 static void nl_destroy_handles(struct nl_handle **handle)
135 {
136 if (*handle == NULL)
137 return;
138 nl80211_handle_destroy(*handle);
139 *handle = NULL;
140 }
141
142
143 #if __WORDSIZE == 64
144 #define ELOOP_SOCKET_INVALID (intptr_t) 0x8888888888888889ULL
145 #else
146 #define ELOOP_SOCKET_INVALID (intptr_t) 0x88888889ULL
147 #endif
148
149 static void nl80211_register_eloop_read(struct nl_handle **handle,
150 eloop_sock_handler handler,
151 void *eloop_data)
152 {
153 nl_socket_set_nonblocking(*handle);
154 eloop_register_read_sock(nl_socket_get_fd(*handle), handler,
155 eloop_data, *handle);
156 *handle = (void *) (((intptr_t) *handle) ^ ELOOP_SOCKET_INVALID);
157 }
158
159
160 static void nl80211_destroy_eloop_handle(struct nl_handle **handle)
161 {
162 *handle = (void *) (((intptr_t) *handle) ^ ELOOP_SOCKET_INVALID);
163 eloop_unregister_read_sock(nl_socket_get_fd(*handle));
164 nl_destroy_handles(handle);
165 }
166
167
168 #ifndef IFF_LOWER_UP
169 #define IFF_LOWER_UP 0x10000 /* driver signals L1 up */
170 #endif
171 #ifndef IFF_DORMANT
172 #define IFF_DORMANT 0x20000 /* driver signals dormant */
173 #endif
174
175 #ifndef IF_OPER_DORMANT
176 #define IF_OPER_DORMANT 5
177 #endif
178 #ifndef IF_OPER_UP
179 #define IF_OPER_UP 6
180 #endif
181
182 struct nl80211_global {
183 struct dl_list interfaces;
184 int if_add_ifindex;
185 u64 if_add_wdevid;
186 int if_add_wdevid_set;
187 struct netlink_data *netlink;
188 struct nl_cb *nl_cb;
189 struct nl_handle *nl;
190 int nl80211_id;
191 int ioctl_sock; /* socket for ioctl() use */
192
193 struct nl_handle *nl_event;
194 };
195
196 struct nl80211_wiphy_data {
197 struct dl_list list;
198 struct dl_list bsss;
199 struct dl_list drvs;
200
201 struct nl_handle *nl_beacons;
202 struct nl_cb *nl_cb;
203
204 int wiphy_idx;
205 };
206
207 static void nl80211_global_deinit(void *priv);
208
209 struct i802_bss {
210 struct wpa_driver_nl80211_data *drv;
211 struct i802_bss *next;
212 int ifindex;
213 u64 wdev_id;
214 char ifname[IFNAMSIZ + 1];
215 char brname[IFNAMSIZ];
216 unsigned int beacon_set:1;
217 unsigned int added_if_into_bridge:1;
218 unsigned int added_bridge:1;
219 unsigned int in_deinit:1;
220 unsigned int wdev_id_set:1;
221
222 u8 addr[ETH_ALEN];
223
224 int freq;
225 int if_dynamic;
226
227 void *ctx;
228 struct nl_handle *nl_preq, *nl_mgmt;
229 struct nl_cb *nl_cb;
230
231 struct nl80211_wiphy_data *wiphy_data;
232 struct dl_list wiphy_list;
233 };
234
235 struct wpa_driver_nl80211_data {
236 struct nl80211_global *global;
237 struct dl_list list;
238 struct dl_list wiphy_list;
239 char phyname[32];
240 void *ctx;
241 int ifindex;
242 int if_removed;
243 int if_disabled;
244 int ignore_if_down_event;
245 struct rfkill_data *rfkill;
246 struct wpa_driver_capa capa;
247 u8 *extended_capa, *extended_capa_mask;
248 unsigned int extended_capa_len;
249 int has_capability;
250
251 int operstate;
252
253 int scan_complete_events;
254 enum scan_states {
255 NO_SCAN, SCAN_REQUESTED, SCAN_STARTED, SCAN_COMPLETED,
256 SCAN_ABORTED, SCHED_SCAN_STARTED, SCHED_SCAN_STOPPED,
257 SCHED_SCAN_RESULTS
258 } scan_state;
259
260 struct nl_cb *nl_cb;
261
262 u8 auth_bssid[ETH_ALEN];
263 u8 auth_attempt_bssid[ETH_ALEN];
264 u8 bssid[ETH_ALEN];
265 u8 prev_bssid[ETH_ALEN];
266 int associated;
267 u8 ssid[32];
268 size_t ssid_len;
269 enum nl80211_iftype nlmode;
270 enum nl80211_iftype ap_scan_as_station;
271 unsigned int assoc_freq;
272
273 int monitor_sock;
274 int monitor_ifidx;
275 int monitor_refcount;
276
277 unsigned int disabled_11b_rates:1;
278 unsigned int pending_remain_on_chan:1;
279 unsigned int in_interface_list:1;
280 unsigned int device_ap_sme:1;
281 unsigned int poll_command_supported:1;
282 unsigned int data_tx_status:1;
283 unsigned int scan_for_auth:1;
284 unsigned int retry_auth:1;
285 unsigned int use_monitor:1;
286 unsigned int ignore_next_local_disconnect:1;
287 unsigned int allow_p2p_device:1;
288
289 u64 remain_on_chan_cookie;
290 u64 send_action_cookie;
291
292 unsigned int last_mgmt_freq;
293
294 struct wpa_driver_scan_filter *filter_ssids;
295 size_t num_filter_ssids;
296
297 struct i802_bss first_bss;
298
299 int eapol_tx_sock;
300
301 #ifdef HOSTAPD
302 int eapol_sock; /* socket for EAPOL frames */
303
304 int default_if_indices[16];
305 int *if_indices;
306 int num_if_indices;
307
308 int last_freq;
309 int last_freq_ht;
310 #endif /* HOSTAPD */
311
312 /* From failed authentication command */
313 int auth_freq;
314 u8 auth_bssid_[ETH_ALEN];
315 u8 auth_ssid[32];
316 size_t auth_ssid_len;
317 int auth_alg;
318 u8 *auth_ie;
319 size_t auth_ie_len;
320 u8 auth_wep_key[4][16];
321 size_t auth_wep_key_len[4];
322 int auth_wep_tx_keyidx;
323 int auth_local_state_change;
324 int auth_p2p;
325 };
326
327
328 static void wpa_driver_nl80211_deinit(struct i802_bss *bss);
329 static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx,
330 void *timeout_ctx);
331 static int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
332 enum nl80211_iftype nlmode);
333 static int
334 wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv);
335 static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
336 const u8 *addr, int cmd, u16 reason_code,
337 int local_state_change);
338 static void nl80211_remove_monitor_interface(
339 struct wpa_driver_nl80211_data *drv);
340 static int nl80211_send_frame_cmd(struct i802_bss *bss,
341 unsigned int freq, unsigned int wait,
342 const u8 *buf, size_t buf_len, u64 *cookie,
343 int no_cck, int no_ack, int offchanok);
344 static int nl80211_register_frame(struct i802_bss *bss,
345 struct nl_handle *hl_handle,
346 u16 type, const u8 *match, size_t match_len);
347 static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss,
348 int report);
349 #ifdef ANDROID
350 static int android_pno_start(struct i802_bss *bss,
351 struct wpa_driver_scan_params *params);
352 static int android_pno_stop(struct i802_bss *bss);
353 #endif /* ANDROID */
354
355 #ifdef HOSTAPD
356 static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
357 static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
358 static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
359 static int wpa_driver_nl80211_if_remove(struct i802_bss *bss,
360 enum wpa_driver_if_type type,
361 const char *ifname);
362 #else /* HOSTAPD */
363 static inline void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
364 {
365 }
366
367 static inline void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
368 {
369 }
370
371 static inline int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
372 {
373 return 0;
374 }
375 #endif /* HOSTAPD */
376
377 static int wpa_driver_nl80211_set_freq(struct i802_bss *bss,
378 struct hostapd_freq_params *freq);
379 static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
380 int ifindex, int disabled);
381
382 static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv);
383 static int wpa_driver_nl80211_authenticate_retry(
384 struct wpa_driver_nl80211_data *drv);
385
386 static int i802_set_iface_flags(struct i802_bss *bss, int up);
387
388
389 static const char * nl80211_command_to_string(enum nl80211_commands cmd)
390 {
391 #define C2S(x) case x: return #x;
392 switch (cmd) {
393 C2S(NL80211_CMD_UNSPEC)
394 C2S(NL80211_CMD_GET_WIPHY)
395 C2S(NL80211_CMD_SET_WIPHY)
396 C2S(NL80211_CMD_NEW_WIPHY)
397 C2S(NL80211_CMD_DEL_WIPHY)
398 C2S(NL80211_CMD_GET_INTERFACE)
399 C2S(NL80211_CMD_SET_INTERFACE)
400 C2S(NL80211_CMD_NEW_INTERFACE)
401 C2S(NL80211_CMD_DEL_INTERFACE)
402 C2S(NL80211_CMD_GET_KEY)
403 C2S(NL80211_CMD_SET_KEY)
404 C2S(NL80211_CMD_NEW_KEY)
405 C2S(NL80211_CMD_DEL_KEY)
406 C2S(NL80211_CMD_GET_BEACON)
407 C2S(NL80211_CMD_SET_BEACON)
408 C2S(NL80211_CMD_START_AP)
409 C2S(NL80211_CMD_STOP_AP)
410 C2S(NL80211_CMD_GET_STATION)
411 C2S(NL80211_CMD_SET_STATION)
412 C2S(NL80211_CMD_NEW_STATION)
413 C2S(NL80211_CMD_DEL_STATION)
414 C2S(NL80211_CMD_GET_MPATH)
415 C2S(NL80211_CMD_SET_MPATH)
416 C2S(NL80211_CMD_NEW_MPATH)
417 C2S(NL80211_CMD_DEL_MPATH)
418 C2S(NL80211_CMD_SET_BSS)
419 C2S(NL80211_CMD_SET_REG)
420 C2S(NL80211_CMD_REQ_SET_REG)
421 C2S(NL80211_CMD_GET_MESH_CONFIG)
422 C2S(NL80211_CMD_SET_MESH_CONFIG)
423 C2S(NL80211_CMD_SET_MGMT_EXTRA_IE)
424 C2S(NL80211_CMD_GET_REG)
425 C2S(NL80211_CMD_GET_SCAN)
426 C2S(NL80211_CMD_TRIGGER_SCAN)
427 C2S(NL80211_CMD_NEW_SCAN_RESULTS)
428 C2S(NL80211_CMD_SCAN_ABORTED)
429 C2S(NL80211_CMD_REG_CHANGE)
430 C2S(NL80211_CMD_AUTHENTICATE)
431 C2S(NL80211_CMD_ASSOCIATE)
432 C2S(NL80211_CMD_DEAUTHENTICATE)
433 C2S(NL80211_CMD_DISASSOCIATE)
434 C2S(NL80211_CMD_MICHAEL_MIC_FAILURE)
435 C2S(NL80211_CMD_REG_BEACON_HINT)
436 C2S(NL80211_CMD_JOIN_IBSS)
437 C2S(NL80211_CMD_LEAVE_IBSS)
438 C2S(NL80211_CMD_TESTMODE)
439 C2S(NL80211_CMD_CONNECT)
440 C2S(NL80211_CMD_ROAM)
441 C2S(NL80211_CMD_DISCONNECT)
442 C2S(NL80211_CMD_SET_WIPHY_NETNS)
443 C2S(NL80211_CMD_GET_SURVEY)
444 C2S(NL80211_CMD_NEW_SURVEY_RESULTS)
445 C2S(NL80211_CMD_SET_PMKSA)
446 C2S(NL80211_CMD_DEL_PMKSA)
447 C2S(NL80211_CMD_FLUSH_PMKSA)
448 C2S(NL80211_CMD_REMAIN_ON_CHANNEL)
449 C2S(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL)
450 C2S(NL80211_CMD_SET_TX_BITRATE_MASK)
451 C2S(NL80211_CMD_REGISTER_FRAME)
452 C2S(NL80211_CMD_FRAME)
453 C2S(NL80211_CMD_FRAME_TX_STATUS)
454 C2S(NL80211_CMD_SET_POWER_SAVE)
455 C2S(NL80211_CMD_GET_POWER_SAVE)
456 C2S(NL80211_CMD_SET_CQM)
457 C2S(NL80211_CMD_NOTIFY_CQM)
458 C2S(NL80211_CMD_SET_CHANNEL)
459 C2S(NL80211_CMD_SET_WDS_PEER)
460 C2S(NL80211_CMD_FRAME_WAIT_CANCEL)
461 C2S(NL80211_CMD_JOIN_MESH)
462 C2S(NL80211_CMD_LEAVE_MESH)
463 C2S(NL80211_CMD_UNPROT_DEAUTHENTICATE)
464 C2S(NL80211_CMD_UNPROT_DISASSOCIATE)
465 C2S(NL80211_CMD_NEW_PEER_CANDIDATE)
466 C2S(NL80211_CMD_GET_WOWLAN)
467 C2S(NL80211_CMD_SET_WOWLAN)
468 C2S(NL80211_CMD_START_SCHED_SCAN)
469 C2S(NL80211_CMD_STOP_SCHED_SCAN)
470 C2S(NL80211_CMD_SCHED_SCAN_RESULTS)
471 C2S(NL80211_CMD_SCHED_SCAN_STOPPED)
472 C2S(NL80211_CMD_SET_REKEY_OFFLOAD)
473 C2S(NL80211_CMD_PMKSA_CANDIDATE)
474 C2S(NL80211_CMD_TDLS_OPER)
475 C2S(NL80211_CMD_TDLS_MGMT)
476 C2S(NL80211_CMD_UNEXPECTED_FRAME)
477 C2S(NL80211_CMD_PROBE_CLIENT)
478 C2S(NL80211_CMD_REGISTER_BEACONS)
479 C2S(NL80211_CMD_UNEXPECTED_4ADDR_FRAME)
480 C2S(NL80211_CMD_SET_NOACK_MAP)
481 C2S(NL80211_CMD_CH_SWITCH_NOTIFY)
482 C2S(NL80211_CMD_START_P2P_DEVICE)
483 C2S(NL80211_CMD_STOP_P2P_DEVICE)
484 C2S(NL80211_CMD_CONN_FAILED)
485 C2S(NL80211_CMD_SET_MCAST_RATE)
486 C2S(NL80211_CMD_SET_MAC_ACL)
487 C2S(NL80211_CMD_RADAR_DETECT)
488 C2S(NL80211_CMD_GET_PROTOCOL_FEATURES)
489 C2S(NL80211_CMD_UPDATE_FT_IES)
490 C2S(NL80211_CMD_FT_EVENT)
491 C2S(NL80211_CMD_CRIT_PROTOCOL_START)
492 C2S(NL80211_CMD_CRIT_PROTOCOL_STOP)
493 default:
494 return "NL80211_CMD_UNKNOWN";
495 }
496 #undef C2S
497 }
498
499
500 static int is_ap_interface(enum nl80211_iftype nlmode)
501 {
502 return (nlmode == NL80211_IFTYPE_AP ||
503 nlmode == NL80211_IFTYPE_P2P_GO);
504 }
505
506
507 static int is_sta_interface(enum nl80211_iftype nlmode)
508 {
509 return (nlmode == NL80211_IFTYPE_STATION ||
510 nlmode == NL80211_IFTYPE_P2P_CLIENT);
511 }
512
513
514 static int is_p2p_net_interface(enum nl80211_iftype nlmode)
515 {
516 return (nlmode == NL80211_IFTYPE_P2P_CLIENT ||
517 nlmode == NL80211_IFTYPE_P2P_GO);
518 }
519
520
521 static void nl80211_mark_disconnected(struct wpa_driver_nl80211_data *drv)
522 {
523 if (drv->associated)
524 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN);
525 drv->associated = 0;
526 os_memset(drv->bssid, 0, ETH_ALEN);
527 }
528
529
530 struct nl80211_bss_info_arg {
531 struct wpa_driver_nl80211_data *drv;
532 struct wpa_scan_results *res;
533 unsigned int assoc_freq;
534 u8 assoc_bssid[ETH_ALEN];
535 };
536
537 static int bss_info_handler(struct nl_msg *msg, void *arg);
538
539
540 /* nl80211 code */
541 static int ack_handler(struct nl_msg *msg, void *arg)
542 {
543 int *err = arg;
544 *err = 0;
545 return NL_STOP;
546 }
547
548 static int finish_handler(struct nl_msg *msg, void *arg)
549 {
550 int *ret = arg;
551 *ret = 0;
552 return NL_SKIP;
553 }
554
555 static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err,
556 void *arg)
557 {
558 int *ret = arg;
559 *ret = err->error;
560 return NL_SKIP;
561 }
562
563
564 static int no_seq_check(struct nl_msg *msg, void *arg)
565 {
566 return NL_OK;
567 }
568
569
570 static int send_and_recv(struct nl80211_global *global,
571 struct nl_handle *nl_handle, struct nl_msg *msg,
572 int (*valid_handler)(struct nl_msg *, void *),
573 void *valid_data)
574 {
575 struct nl_cb *cb;
576 int err = -ENOMEM;
577
578 cb = nl_cb_clone(global->nl_cb);
579 if (!cb)
580 goto out;
581
582 err = nl_send_auto_complete(nl_handle, msg);
583 if (err < 0)
584 goto out;
585
586 err = 1;
587
588 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
589 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
590 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
591
592 if (valid_handler)
593 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM,
594 valid_handler, valid_data);
595
596 while (err > 0) {
597 int res = nl_recvmsgs(nl_handle, cb);
598 if (res) {
599 wpa_printf(MSG_INFO,
600 "nl80211: %s->nl_recvmsgs failed: %d",
601 __func__, res);
602 }
603 }
604 out:
605 nl_cb_put(cb);
606 nlmsg_free(msg);
607 return err;
608 }
609
610
611 static int send_and_recv_msgs_global(struct nl80211_global *global,
612 struct nl_msg *msg,
613 int (*valid_handler)(struct nl_msg *, void *),
614 void *valid_data)
615 {
616 return send_and_recv(global, global->nl, msg, valid_handler,
617 valid_data);
618 }
619
620
621 static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv,
622 struct nl_msg *msg,
623 int (*valid_handler)(struct nl_msg *, void *),
624 void *valid_data)
625 {
626 return send_and_recv(drv->global, drv->global->nl, msg,
627 valid_handler, valid_data);
628 }
629
630
631 struct family_data {
632 const char *group;
633 int id;
634 };
635
636
637 static int nl80211_set_iface_id(struct nl_msg *msg, struct i802_bss *bss)
638 {
639 if (bss->wdev_id_set)
640 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id);
641 else
642 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
643 return 0;
644
645 nla_put_failure:
646 return -1;
647 }
648
649
650 static int family_handler(struct nl_msg *msg, void *arg)
651 {
652 struct family_data *res = arg;
653 struct nlattr *tb[CTRL_ATTR_MAX + 1];
654 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
655 struct nlattr *mcgrp;
656 int i;
657
658 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
659 genlmsg_attrlen(gnlh, 0), NULL);
660 if (!tb[CTRL_ATTR_MCAST_GROUPS])
661 return NL_SKIP;
662
663 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) {
664 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1];
665 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp),
666 nla_len(mcgrp), NULL);
667 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] ||
668 !tb2[CTRL_ATTR_MCAST_GRP_ID] ||
669 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]),
670 res->group,
671 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0)
672 continue;
673 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]);
674 break;
675 };
676
677 return NL_SKIP;
678 }
679
680
681 static int nl_get_multicast_id(struct nl80211_global *global,
682 const char *family, const char *group)
683 {
684 struct nl_msg *msg;
685 int ret = -1;
686 struct family_data res = { group, -ENOENT };
687
688 msg = nlmsg_alloc();
689 if (!msg)
690 return -ENOMEM;
691 genlmsg_put(msg, 0, 0, genl_ctrl_resolve(global->nl, "nlctrl"),
692 0, 0, CTRL_CMD_GETFAMILY, 0);
693 NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family);
694
695 ret = send_and_recv_msgs_global(global, msg, family_handler, &res);
696 msg = NULL;
697 if (ret == 0)
698 ret = res.id;
699
700 nla_put_failure:
701 nlmsg_free(msg);
702 return ret;
703 }
704
705
706 static void * nl80211_cmd(struct wpa_driver_nl80211_data *drv,
707 struct nl_msg *msg, int flags, uint8_t cmd)
708 {
709 return genlmsg_put(msg, 0, 0, drv->global->nl80211_id,
710 0, flags, cmd, 0);
711 }
712
713
714 struct wiphy_idx_data {
715 int wiphy_idx;
716 enum nl80211_iftype nlmode;
717 u8 *macaddr;
718 };
719
720
721 static int netdev_info_handler(struct nl_msg *msg, void *arg)
722 {
723 struct nlattr *tb[NL80211_ATTR_MAX + 1];
724 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
725 struct wiphy_idx_data *info = arg;
726
727 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
728 genlmsg_attrlen(gnlh, 0), NULL);
729
730 if (tb[NL80211_ATTR_WIPHY])
731 info->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
732
733 if (tb[NL80211_ATTR_IFTYPE])
734 info->nlmode = nla_get_u32(tb[NL80211_ATTR_IFTYPE]);
735
736 if (tb[NL80211_ATTR_MAC] && info->macaddr)
737 os_memcpy(info->macaddr, nla_data(tb[NL80211_ATTR_MAC]),
738 ETH_ALEN);
739
740 return NL_SKIP;
741 }
742
743
744 static int nl80211_get_wiphy_index(struct i802_bss *bss)
745 {
746 struct nl_msg *msg;
747 struct wiphy_idx_data data = {
748 .wiphy_idx = -1,
749 .macaddr = NULL,
750 };
751
752 msg = nlmsg_alloc();
753 if (!msg)
754 return NL80211_IFTYPE_UNSPECIFIED;
755
756 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE);
757
758 if (nl80211_set_iface_id(msg, bss) < 0)
759 goto nla_put_failure;
760
761 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0)
762 return data.wiphy_idx;
763 msg = NULL;
764 nla_put_failure:
765 nlmsg_free(msg);
766 return -1;
767 }
768
769
770 static enum nl80211_iftype nl80211_get_ifmode(struct i802_bss *bss)
771 {
772 struct nl_msg *msg;
773 struct wiphy_idx_data data = {
774 .nlmode = NL80211_IFTYPE_UNSPECIFIED,
775 .macaddr = NULL,
776 };
777
778 msg = nlmsg_alloc();
779 if (!msg)
780 return -1;
781
782 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE);
783
784 if (nl80211_set_iface_id(msg, bss) < 0)
785 goto nla_put_failure;
786
787 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0)
788 return data.nlmode;
789 msg = NULL;
790 nla_put_failure:
791 nlmsg_free(msg);
792 return NL80211_IFTYPE_UNSPECIFIED;
793 }
794
795
796 #ifndef HOSTAPD
797 static int nl80211_get_macaddr(struct i802_bss *bss)
798 {
799 struct nl_msg *msg;
800 struct wiphy_idx_data data = {
801 .macaddr = bss->addr,
802 };
803
804 msg = nlmsg_alloc();
805 if (!msg)
806 return NL80211_IFTYPE_UNSPECIFIED;
807
808 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE);
809 if (nl80211_set_iface_id(msg, bss) < 0)
810 goto nla_put_failure;
811
812 return send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data);
813
814 nla_put_failure:
815 nlmsg_free(msg);
816 return NL80211_IFTYPE_UNSPECIFIED;
817 }
818 #endif /* HOSTAPD */
819
820
821 static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv,
822 struct nl80211_wiphy_data *w)
823 {
824 struct nl_msg *msg;
825 int ret = -1;
826
827 msg = nlmsg_alloc();
828 if (!msg)
829 return -1;
830
831 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_BEACONS);
832
833 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, w->wiphy_idx);
834
835 ret = send_and_recv(drv->global, w->nl_beacons, msg, NULL, NULL);
836 msg = NULL;
837 if (ret) {
838 wpa_printf(MSG_DEBUG, "nl80211: Register beacons command "
839 "failed: ret=%d (%s)",
840 ret, strerror(-ret));
841 goto nla_put_failure;
842 }
843 ret = 0;
844 nla_put_failure:
845 nlmsg_free(msg);
846 return ret;
847 }
848
849
850 static void nl80211_recv_beacons(int sock, void *eloop_ctx, void *handle)
851 {
852 struct nl80211_wiphy_data *w = eloop_ctx;
853 int res;
854
855 wpa_printf(MSG_EXCESSIVE, "nl80211: Beacon event message available");
856
857 res = nl_recvmsgs(handle, w->nl_cb);
858 if (res) {
859 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d",
860 __func__, res);
861 }
862 }
863
864
865 static int process_beacon_event(struct nl_msg *msg, void *arg)
866 {
867 struct nl80211_wiphy_data *w = arg;
868 struct wpa_driver_nl80211_data *drv;
869 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
870 struct nlattr *tb[NL80211_ATTR_MAX + 1];
871 union wpa_event_data event;
872
873 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
874 genlmsg_attrlen(gnlh, 0), NULL);
875
876 if (gnlh->cmd != NL80211_CMD_FRAME) {
877 wpa_printf(MSG_DEBUG, "nl80211: Unexpected beacon event? (%d)",
878 gnlh->cmd);
879 return NL_SKIP;
880 }
881
882 if (!tb[NL80211_ATTR_FRAME])
883 return NL_SKIP;
884
885 dl_list_for_each(drv, &w->drvs, struct wpa_driver_nl80211_data,
886 wiphy_list) {
887 os_memset(&event, 0, sizeof(event));
888 event.rx_mgmt.frame = nla_data(tb[NL80211_ATTR_FRAME]);
889 event.rx_mgmt.frame_len = nla_len(tb[NL80211_ATTR_FRAME]);
890 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
891 }
892
893 return NL_SKIP;
894 }
895
896
897 static struct nl80211_wiphy_data *
898 nl80211_get_wiphy_data_ap(struct i802_bss *bss)
899 {
900 static DEFINE_DL_LIST(nl80211_wiphys);
901 struct nl80211_wiphy_data *w;
902 int wiphy_idx, found = 0;
903 struct i802_bss *tmp_bss;
904
905 if (bss->wiphy_data != NULL)
906 return bss->wiphy_data;
907
908 wiphy_idx = nl80211_get_wiphy_index(bss);
909
910 dl_list_for_each(w, &nl80211_wiphys, struct nl80211_wiphy_data, list) {
911 if (w->wiphy_idx == wiphy_idx)
912 goto add;
913 }
914
915 /* alloc new one */
916 w = os_zalloc(sizeof(*w));
917 if (w == NULL)
918 return NULL;
919 w->wiphy_idx = wiphy_idx;
920 dl_list_init(&w->bsss);
921 dl_list_init(&w->drvs);
922
923 w->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
924 if (!w->nl_cb) {
925 os_free(w);
926 return NULL;
927 }
928 nl_cb_set(w->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL);
929 nl_cb_set(w->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_beacon_event,
930 w);
931
932 w->nl_beacons = nl_create_handle(bss->drv->global->nl_cb,
933 "wiphy beacons");
934 if (w->nl_beacons == NULL) {
935 os_free(w);
936 return NULL;
937 }
938
939 if (nl80211_register_beacons(bss->drv, w)) {
940 nl_destroy_handles(&w->nl_beacons);
941 os_free(w);
942 return NULL;
943 }
944
945 nl80211_register_eloop_read(&w->nl_beacons, nl80211_recv_beacons, w);
946
947 dl_list_add(&nl80211_wiphys, &w->list);
948
949 add:
950 /* drv entry for this bss already there? */
951 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) {
952 if (tmp_bss->drv == bss->drv) {
953 found = 1;
954 break;
955 }
956 }
957 /* if not add it */
958 if (!found)
959 dl_list_add(&w->drvs, &bss->drv->wiphy_list);
960
961 dl_list_add(&w->bsss, &bss->wiphy_list);
962 bss->wiphy_data = w;
963 return w;
964 }
965
966
967 static void nl80211_put_wiphy_data_ap(struct i802_bss *bss)
968 {
969 struct nl80211_wiphy_data *w = bss->wiphy_data;
970 struct i802_bss *tmp_bss;
971 int found = 0;
972
973 if (w == NULL)
974 return;
975 bss->wiphy_data = NULL;
976 dl_list_del(&bss->wiphy_list);
977
978 /* still any for this drv present? */
979 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) {
980 if (tmp_bss->drv == bss->drv) {
981 found = 1;
982 break;
983 }
984 }
985 /* if not remove it */
986 if (!found)
987 dl_list_del(&bss->drv->wiphy_list);
988
989 if (!dl_list_empty(&w->bsss))
990 return;
991
992 nl80211_destroy_eloop_handle(&w->nl_beacons);
993
994 nl_cb_put(w->nl_cb);
995 dl_list_del(&w->list);
996 os_free(w);
997 }
998
999
1000 static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid)
1001 {
1002 struct i802_bss *bss = priv;
1003 struct wpa_driver_nl80211_data *drv = bss->drv;
1004 if (!drv->associated)
1005 return -1;
1006 os_memcpy(bssid, drv->bssid, ETH_ALEN);
1007 return 0;
1008 }
1009
1010
1011 static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid)
1012 {
1013 struct i802_bss *bss = priv;
1014 struct wpa_driver_nl80211_data *drv = bss->drv;
1015 if (!drv->associated)
1016 return -1;
1017 os_memcpy(ssid, drv->ssid, drv->ssid_len);
1018 return drv->ssid_len;
1019 }
1020
1021
1022 static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv,
1023 char *buf, size_t len, int del)
1024 {
1025 union wpa_event_data event;
1026
1027 os_memset(&event, 0, sizeof(event));
1028 if (len > sizeof(event.interface_status.ifname))
1029 len = sizeof(event.interface_status.ifname) - 1;
1030 os_memcpy(event.interface_status.ifname, buf, len);
1031 event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED :
1032 EVENT_INTERFACE_ADDED;
1033
1034 wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s",
1035 del ? "DEL" : "NEW",
1036 event.interface_status.ifname,
1037 del ? "removed" : "added");
1038
1039 if (os_strcmp(drv->first_bss.ifname, event.interface_status.ifname) == 0) {
1040 if (del) {
1041 if (drv->if_removed) {
1042 wpa_printf(MSG_DEBUG, "nl80211: if_removed "
1043 "already set - ignore event");
1044 return;
1045 }
1046 drv->if_removed = 1;
1047 } else {
1048 if (if_nametoindex(drv->first_bss.ifname) == 0) {
1049 wpa_printf(MSG_DEBUG, "nl80211: Interface %s "
1050 "does not exist - ignore "
1051 "RTM_NEWLINK",
1052 drv->first_bss.ifname);
1053 return;
1054 }
1055 if (!drv->if_removed) {
1056 wpa_printf(MSG_DEBUG, "nl80211: if_removed "
1057 "already cleared - ignore event");
1058 return;
1059 }
1060 drv->if_removed = 0;
1061 }
1062 }
1063
1064 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event);
1065 }
1066
1067
1068 static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv,
1069 u8 *buf, size_t len)
1070 {
1071 int attrlen, rta_len;
1072 struct rtattr *attr;
1073
1074 attrlen = len;
1075 attr = (struct rtattr *) buf;
1076
1077 rta_len = RTA_ALIGN(sizeof(struct rtattr));
1078 while (RTA_OK(attr, attrlen)) {
1079 if (attr->rta_type == IFLA_IFNAME) {
1080 if (os_strcmp(((char *) attr) + rta_len, drv->first_bss.ifname)
1081 == 0)
1082 return 1;
1083 else
1084 break;
1085 }
1086 attr = RTA_NEXT(attr, attrlen);
1087 }
1088
1089 return 0;
1090 }
1091
1092
1093 static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv,
1094 int ifindex, u8 *buf, size_t len)
1095 {
1096 if (drv->ifindex == ifindex)
1097 return 1;
1098
1099 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) {
1100 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed "
1101 "interface");
1102 wpa_driver_nl80211_finish_drv_init(drv);
1103 return 1;
1104 }
1105
1106 return 0;
1107 }
1108
1109
1110 static struct wpa_driver_nl80211_data *
1111 nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len)
1112 {
1113 struct wpa_driver_nl80211_data *drv;
1114 dl_list_for_each(drv, &global->interfaces,
1115 struct wpa_driver_nl80211_data, list) {
1116 if (wpa_driver_nl80211_own_ifindex(drv, idx, buf, len) ||
1117 have_ifidx(drv, idx))
1118 return drv;
1119 }
1120 return NULL;
1121 }
1122
1123
1124 static void wpa_driver_nl80211_event_rtm_newlink(void *ctx,
1125 struct ifinfomsg *ifi,
1126 u8 *buf, size_t len)
1127 {
1128 struct nl80211_global *global = ctx;
1129 struct wpa_driver_nl80211_data *drv;
1130 int attrlen, rta_len;
1131 struct rtattr *attr;
1132 u32 brid = 0;
1133 char namebuf[IFNAMSIZ];
1134
1135 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len);
1136 if (!drv) {
1137 wpa_printf(MSG_DEBUG, "nl80211: Ignore event for foreign "
1138 "ifindex %d", ifi->ifi_index);
1139 return;
1140 }
1141
1142 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x "
1143 "(%s%s%s%s)",
1144 drv->operstate, ifi->ifi_flags,
1145 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "",
1146 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "",
1147 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "",
1148 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : "");
1149
1150 if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) {
1151 if (if_indextoname(ifi->ifi_index, namebuf) &&
1152 linux_iface_up(drv->global->ioctl_sock,
1153 drv->first_bss.ifname) > 0) {
1154 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down "
1155 "event since interface %s is up", namebuf);
1156 return;
1157 }
1158 wpa_printf(MSG_DEBUG, "nl80211: Interface down");
1159 if (drv->ignore_if_down_event) {
1160 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down "
1161 "event generated by mode change");
1162 drv->ignore_if_down_event = 0;
1163 } else {
1164 drv->if_disabled = 1;
1165 wpa_supplicant_event(drv->ctx,
1166 EVENT_INTERFACE_DISABLED, NULL);
1167 }
1168 }
1169
1170 if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) {
1171 if (if_indextoname(ifi->ifi_index, namebuf) &&
1172 linux_iface_up(drv->global->ioctl_sock,
1173 drv->first_bss.ifname) == 0) {
1174 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
1175 "event since interface %s is down",
1176 namebuf);
1177 } else if (if_nametoindex(drv->first_bss.ifname) == 0) {
1178 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
1179 "event since interface %s does not exist",
1180 drv->first_bss.ifname);
1181 } else if (drv->if_removed) {
1182 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
1183 "event since interface %s is marked "
1184 "removed", drv->first_bss.ifname);
1185 } else {
1186 wpa_printf(MSG_DEBUG, "nl80211: Interface up");
1187 drv->if_disabled = 0;
1188 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED,
1189 NULL);
1190 }
1191 }
1192
1193 /*
1194 * Some drivers send the association event before the operup event--in
1195 * this case, lifting operstate in wpa_driver_nl80211_set_operstate()
1196 * fails. This will hit us when wpa_supplicant does not need to do
1197 * IEEE 802.1X authentication
1198 */
1199 if (drv->operstate == 1 &&
1200 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP &&
1201 !(ifi->ifi_flags & IFF_RUNNING))
1202 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex,
1203 -1, IF_OPER_UP);
1204
1205 attrlen = len;
1206 attr = (struct rtattr *) buf;
1207 rta_len = RTA_ALIGN(sizeof(struct rtattr));
1208 while (RTA_OK(attr, attrlen)) {
1209 if (attr->rta_type == IFLA_IFNAME) {
1210 wpa_driver_nl80211_event_link(
1211 drv,
1212 ((char *) attr) + rta_len,
1213 attr->rta_len - rta_len, 0);
1214 } else if (attr->rta_type == IFLA_MASTER)
1215 brid = nla_get_u32((struct nlattr *) attr);
1216 attr = RTA_NEXT(attr, attrlen);
1217 }
1218
1219 if (ifi->ifi_family == AF_BRIDGE && brid) {
1220 /* device has been added to bridge */
1221 if_indextoname(brid, namebuf);
1222 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s",
1223 brid, namebuf);
1224 add_ifidx(drv, brid);
1225 }
1226 }
1227
1228
1229 static void wpa_driver_nl80211_event_rtm_dellink(void *ctx,
1230 struct ifinfomsg *ifi,
1231 u8 *buf, size_t len)
1232 {
1233 struct nl80211_global *global = ctx;
1234 struct wpa_driver_nl80211_data *drv;
1235 int attrlen, rta_len;
1236 struct rtattr *attr;
1237 u32 brid = 0;
1238
1239 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len);
1240 if (!drv) {
1241 wpa_printf(MSG_DEBUG, "nl80211: Ignore dellink event for "
1242 "foreign ifindex %d", ifi->ifi_index);
1243 return;
1244 }
1245
1246 attrlen = len;
1247 attr = (struct rtattr *) buf;
1248
1249 rta_len = RTA_ALIGN(sizeof(struct rtattr));
1250 while (RTA_OK(attr, attrlen)) {
1251 if (attr->rta_type == IFLA_IFNAME) {
1252 wpa_driver_nl80211_event_link(
1253 drv,
1254 ((char *) attr) + rta_len,
1255 attr->rta_len - rta_len, 1);
1256 } else if (attr->rta_type == IFLA_MASTER)
1257 brid = nla_get_u32((struct nlattr *) attr);
1258 attr = RTA_NEXT(attr, attrlen);
1259 }
1260
1261 if (ifi->ifi_family == AF_BRIDGE && brid) {
1262 /* device has been removed from bridge */
1263 char namebuf[IFNAMSIZ];
1264 if_indextoname(brid, namebuf);
1265 wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge "
1266 "%s", brid, namebuf);
1267 del_ifidx(drv, brid);
1268 }
1269 }
1270
1271
1272 static void mlme_event_auth(struct wpa_driver_nl80211_data *drv,
1273 const u8 *frame, size_t len)
1274 {
1275 const struct ieee80211_mgmt *mgmt;
1276 union wpa_event_data event;
1277
1278 wpa_printf(MSG_DEBUG, "nl80211: Authenticate event");
1279 mgmt = (const struct ieee80211_mgmt *) frame;
1280 if (len < 24 + sizeof(mgmt->u.auth)) {
1281 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
1282 "frame");
1283 return;
1284 }
1285
1286 os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN);
1287 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN);
1288 os_memset(&event, 0, sizeof(event));
1289 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN);
1290 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg);
1291 event.auth.auth_transaction =
1292 le_to_host16(mgmt->u.auth.auth_transaction);
1293 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code);
1294 if (len > 24 + sizeof(mgmt->u.auth)) {
1295 event.auth.ies = mgmt->u.auth.variable;
1296 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth);
1297 }
1298
1299 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event);
1300 }
1301
1302
1303 static unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv)
1304 {
1305 struct nl_msg *msg;
1306 int ret;
1307 struct nl80211_bss_info_arg arg;
1308
1309 os_memset(&arg, 0, sizeof(arg));
1310 msg = nlmsg_alloc();
1311 if (!msg)
1312 goto nla_put_failure;
1313
1314 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
1315 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1316
1317 arg.drv = drv;
1318 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
1319 msg = NULL;
1320 if (ret == 0) {
1321 wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the "
1322 "associated BSS from scan results: %u MHz",
1323 arg.assoc_freq);
1324 if (arg.assoc_freq)
1325 drv->assoc_freq = arg.assoc_freq;
1326 return drv->assoc_freq;
1327 }
1328 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
1329 "(%s)", ret, strerror(-ret));
1330 nla_put_failure:
1331 nlmsg_free(msg);
1332 return drv->assoc_freq;
1333 }
1334
1335
1336 static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv,
1337 const u8 *frame, size_t len)
1338 {
1339 const struct ieee80211_mgmt *mgmt;
1340 union wpa_event_data event;
1341 u16 status;
1342
1343 wpa_printf(MSG_DEBUG, "nl80211: Associate event");
1344 mgmt = (const struct ieee80211_mgmt *) frame;
1345 if (len < 24 + sizeof(mgmt->u.assoc_resp)) {
1346 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
1347 "frame");
1348 return;
1349 }
1350
1351 status = le_to_host16(mgmt->u.assoc_resp.status_code);
1352 if (status != WLAN_STATUS_SUCCESS) {
1353 os_memset(&event, 0, sizeof(event));
1354 event.assoc_reject.bssid = mgmt->bssid;
1355 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
1356 event.assoc_reject.resp_ies =
1357 (u8 *) mgmt->u.assoc_resp.variable;
1358 event.assoc_reject.resp_ies_len =
1359 len - 24 - sizeof(mgmt->u.assoc_resp);
1360 }
1361 event.assoc_reject.status_code = status;
1362
1363 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
1364 return;
1365 }
1366
1367 drv->associated = 1;
1368 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN);
1369 os_memcpy(drv->prev_bssid, mgmt->sa, ETH_ALEN);
1370
1371 os_memset(&event, 0, sizeof(event));
1372 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
1373 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable;
1374 event.assoc_info.resp_ies_len =
1375 len - 24 - sizeof(mgmt->u.assoc_resp);
1376 }
1377
1378 event.assoc_info.freq = drv->assoc_freq;
1379
1380 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
1381 }
1382
1383
1384 static void mlme_event_connect(struct wpa_driver_nl80211_data *drv,
1385 enum nl80211_commands cmd, struct nlattr *status,
1386 struct nlattr *addr, struct nlattr *req_ie,
1387 struct nlattr *resp_ie)
1388 {
1389 union wpa_event_data event;
1390
1391 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
1392 /*
1393 * Avoid reporting two association events that would confuse
1394 * the core code.
1395 */
1396 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) "
1397 "when using userspace SME", cmd);
1398 return;
1399 }
1400
1401 if (cmd == NL80211_CMD_CONNECT)
1402 wpa_printf(MSG_DEBUG, "nl80211: Connect event");
1403 else if (cmd == NL80211_CMD_ROAM)
1404 wpa_printf(MSG_DEBUG, "nl80211: Roam event");
1405
1406 os_memset(&event, 0, sizeof(event));
1407 if (cmd == NL80211_CMD_CONNECT &&
1408 nla_get_u16(status) != WLAN_STATUS_SUCCESS) {
1409 if (addr)
1410 event.assoc_reject.bssid = nla_data(addr);
1411 if (resp_ie) {
1412 event.assoc_reject.resp_ies = nla_data(resp_ie);
1413 event.assoc_reject.resp_ies_len = nla_len(resp_ie);
1414 }
1415 event.assoc_reject.status_code = nla_get_u16(status);
1416 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
1417 return;
1418 }
1419
1420 drv->associated = 1;
1421 if (addr) {
1422 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN);
1423 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN);
1424 }
1425
1426 if (req_ie) {
1427 event.assoc_info.req_ies = nla_data(req_ie);
1428 event.assoc_info.req_ies_len = nla_len(req_ie);
1429 }
1430 if (resp_ie) {
1431 event.assoc_info.resp_ies = nla_data(resp_ie);
1432 event.assoc_info.resp_ies_len = nla_len(resp_ie);
1433 }
1434
1435 event.assoc_info.freq = nl80211_get_assoc_freq(drv);
1436
1437 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
1438 }
1439
1440
1441 static void mlme_event_disconnect(struct wpa_driver_nl80211_data *drv,
1442 struct nlattr *reason, struct nlattr *addr,
1443 struct nlattr *by_ap)
1444 {
1445 union wpa_event_data data;
1446 unsigned int locally_generated = by_ap == NULL;
1447
1448 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
1449 /*
1450 * Avoid reporting two disassociation events that could
1451 * confuse the core code.
1452 */
1453 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect "
1454 "event when using userspace SME");
1455 return;
1456 }
1457
1458 if (drv->ignore_next_local_disconnect) {
1459 drv->ignore_next_local_disconnect = 0;
1460 if (locally_generated) {
1461 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect "
1462 "event triggered during reassociation");
1463 return;
1464 }
1465 wpa_printf(MSG_WARNING, "nl80211: Was expecting local "
1466 "disconnect but got another disconnect "
1467 "event first");
1468 }
1469
1470 wpa_printf(MSG_DEBUG, "nl80211: Disconnect event");
1471 nl80211_mark_disconnected(drv);
1472 os_memset(&data, 0, sizeof(data));
1473 if (reason)
1474 data.deauth_info.reason_code = nla_get_u16(reason);
1475 data.deauth_info.locally_generated = by_ap == NULL;
1476 wpa_supplicant_event(drv->ctx, EVENT_DEAUTH, &data);
1477 }
1478
1479
1480 static void mlme_event_ch_switch(struct wpa_driver_nl80211_data *drv,
1481 struct nlattr *freq, struct nlattr *type)
1482 {
1483 union wpa_event_data data;
1484 int ht_enabled = 1;
1485 int chan_offset = 0;
1486
1487 wpa_printf(MSG_DEBUG, "nl80211: Channel switch event");
1488
1489 if (!freq || !type)
1490 return;
1491
1492 switch (nla_get_u32(type)) {
1493 case NL80211_CHAN_NO_HT:
1494 ht_enabled = 0;
1495 break;
1496 case NL80211_CHAN_HT20:
1497 break;
1498 case NL80211_CHAN_HT40PLUS:
1499 chan_offset = 1;
1500 break;
1501 case NL80211_CHAN_HT40MINUS:
1502 chan_offset = -1;
1503 break;
1504 }
1505
1506 data.ch_switch.freq = nla_get_u32(freq);
1507 data.ch_switch.ht_enabled = ht_enabled;
1508 data.ch_switch.ch_offset = chan_offset;
1509
1510 wpa_supplicant_event(drv->ctx, EVENT_CH_SWITCH, &data);
1511 }
1512
1513
1514 static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv,
1515 enum nl80211_commands cmd, struct nlattr *addr)
1516 {
1517 union wpa_event_data event;
1518 enum wpa_event_type ev;
1519
1520 if (nla_len(addr) != ETH_ALEN)
1521 return;
1522
1523 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR,
1524 cmd, MAC2STR((u8 *) nla_data(addr)));
1525
1526 if (cmd == NL80211_CMD_AUTHENTICATE)
1527 ev = EVENT_AUTH_TIMED_OUT;
1528 else if (cmd == NL80211_CMD_ASSOCIATE)
1529 ev = EVENT_ASSOC_TIMED_OUT;
1530 else
1531 return;
1532
1533 os_memset(&event, 0, sizeof(event));
1534 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN);
1535 wpa_supplicant_event(drv->ctx, ev, &event);
1536 }
1537
1538
1539 static void mlme_event_mgmt(struct wpa_driver_nl80211_data *drv,
1540 struct nlattr *freq, struct nlattr *sig,
1541 const u8 *frame, size_t len)
1542 {
1543 const struct ieee80211_mgmt *mgmt;
1544 union wpa_event_data event;
1545 u16 fc, stype;
1546 int ssi_signal = 0;
1547 int rx_freq = 0;
1548
1549 wpa_printf(MSG_MSGDUMP, "nl80211: Frame event");
1550 mgmt = (const struct ieee80211_mgmt *) frame;
1551 if (len < 24) {
1552 wpa_printf(MSG_DEBUG, "nl80211: Too short action frame");
1553 return;
1554 }
1555
1556 fc = le_to_host16(mgmt->frame_control);
1557 stype = WLAN_FC_GET_STYPE(fc);
1558
1559 if (sig)
1560 ssi_signal = (s32) nla_get_u32(sig);
1561
1562 os_memset(&event, 0, sizeof(event));
1563 if (freq) {
1564 event.rx_action.freq = nla_get_u32(freq);
1565 rx_freq = drv->last_mgmt_freq = event.rx_action.freq;
1566 }
1567 wpa_printf(MSG_DEBUG,
1568 "nl80211: RX frame freq=%d ssi_signal=%d stype=%u len=%u",
1569 rx_freq, ssi_signal, stype, (unsigned int) len);
1570 if (stype == WLAN_FC_STYPE_ACTION) {
1571 event.rx_action.da = mgmt->da;
1572 event.rx_action.sa = mgmt->sa;
1573 event.rx_action.bssid = mgmt->bssid;
1574 event.rx_action.category = mgmt->u.action.category;
1575 event.rx_action.data = &mgmt->u.action.category + 1;
1576 event.rx_action.len = frame + len - event.rx_action.data;
1577 wpa_supplicant_event(drv->ctx, EVENT_RX_ACTION, &event);
1578 } else {
1579 event.rx_mgmt.frame = frame;
1580 event.rx_mgmt.frame_len = len;
1581 event.rx_mgmt.ssi_signal = ssi_signal;
1582 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
1583 }
1584 }
1585
1586
1587 static void mlme_event_mgmt_tx_status(struct wpa_driver_nl80211_data *drv,
1588 struct nlattr *cookie, const u8 *frame,
1589 size_t len, struct nlattr *ack)
1590 {
1591 union wpa_event_data event;
1592 const struct ieee80211_hdr *hdr;
1593 u16 fc;
1594
1595 wpa_printf(MSG_DEBUG, "nl80211: Frame TX status event");
1596 if (!is_ap_interface(drv->nlmode)) {
1597 u64 cookie_val;
1598
1599 if (!cookie)
1600 return;
1601
1602 cookie_val = nla_get_u64(cookie);
1603 wpa_printf(MSG_DEBUG, "nl80211: Action TX status:"
1604 " cookie=0%llx%s (ack=%d)",
1605 (long long unsigned int) cookie_val,
1606 cookie_val == drv->send_action_cookie ?
1607 " (match)" : " (unknown)", ack != NULL);
1608 if (cookie_val != drv->send_action_cookie)
1609 return;
1610 }
1611
1612 hdr = (const struct ieee80211_hdr *) frame;
1613 fc = le_to_host16(hdr->frame_control);
1614
1615 os_memset(&event, 0, sizeof(event));
1616 event.tx_status.type = WLAN_FC_GET_TYPE(fc);
1617 event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
1618 event.tx_status.dst = hdr->addr1;
1619 event.tx_status.data = frame;
1620 event.tx_status.data_len = len;
1621 event.tx_status.ack = ack != NULL;
1622 wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event);
1623 }
1624
1625
1626 static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv,
1627 enum wpa_event_type type,
1628 const u8 *frame, size_t len)
1629 {
1630 const struct ieee80211_mgmt *mgmt;
1631 union wpa_event_data event;
1632 const u8 *bssid = NULL;
1633 u16 reason_code = 0;
1634
1635 if (type == EVENT_DEAUTH)
1636 wpa_printf(MSG_DEBUG, "nl80211: Deauthenticate event");
1637 else
1638 wpa_printf(MSG_DEBUG, "nl80211: Disassociate event");
1639
1640 mgmt = (const struct ieee80211_mgmt *) frame;
1641 if (len >= 24) {
1642 bssid = mgmt->bssid;
1643
1644 if ((drv->capa.flags & WPA_DRIVER_FLAGS_SME) &&
1645 !drv->associated &&
1646 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0 &&
1647 os_memcmp(bssid, drv->auth_attempt_bssid, ETH_ALEN) != 0 &&
1648 os_memcmp(bssid, drv->prev_bssid, ETH_ALEN) == 0) {
1649 /*
1650 * Avoid issues with some roaming cases where
1651 * disconnection event for the old AP may show up after
1652 * we have started connection with the new AP.
1653 */
1654 wpa_printf(MSG_DEBUG, "nl80211: Ignore deauth/disassoc event from old AP " MACSTR " when already authenticating with " MACSTR,
1655 MAC2STR(bssid),
1656 MAC2STR(drv->auth_attempt_bssid));
1657 return;
1658 }
1659
1660 if (drv->associated != 0 &&
1661 os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 &&
1662 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) {
1663 /*
1664 * We have presumably received this deauth as a
1665 * response to a clear_state_mismatch() outgoing
1666 * deauth. Don't let it take us offline!
1667 */
1668 wpa_printf(MSG_DEBUG, "nl80211: Deauth received "
1669 "from Unknown BSSID " MACSTR " -- ignoring",
1670 MAC2STR(bssid));
1671 return;
1672 }
1673 }
1674
1675 nl80211_mark_disconnected(drv);
1676 os_memset(&event, 0, sizeof(event));
1677
1678 /* Note: Same offset for Reason Code in both frame subtypes */
1679 if (len >= 24 + sizeof(mgmt->u.deauth))
1680 reason_code = le_to_host16(mgmt->u.deauth.reason_code);
1681
1682 if (type == EVENT_DISASSOC) {
1683 event.disassoc_info.locally_generated =
1684 !os_memcmp(mgmt->sa, drv->first_bss.addr, ETH_ALEN);
1685 event.disassoc_info.addr = bssid;
1686 event.disassoc_info.reason_code = reason_code;
1687 if (frame + len > mgmt->u.disassoc.variable) {
1688 event.disassoc_info.ie = mgmt->u.disassoc.variable;
1689 event.disassoc_info.ie_len = frame + len -
1690 mgmt->u.disassoc.variable;
1691 }
1692 } else {
1693 event.deauth_info.locally_generated =
1694 !os_memcmp(mgmt->sa, drv->first_bss.addr, ETH_ALEN);
1695 event.deauth_info.addr = bssid;
1696 event.deauth_info.reason_code = reason_code;
1697 if (frame + len > mgmt->u.deauth.variable) {
1698 event.deauth_info.ie = mgmt->u.deauth.variable;
1699 event.deauth_info.ie_len = frame + len -
1700 mgmt->u.deauth.variable;
1701 }
1702 }
1703
1704 wpa_supplicant_event(drv->ctx, type, &event);
1705 }
1706
1707
1708 static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv,
1709 enum wpa_event_type type,
1710 const u8 *frame, size_t len)
1711 {
1712 const struct ieee80211_mgmt *mgmt;
1713 union wpa_event_data event;
1714 u16 reason_code = 0;
1715
1716 if (type == EVENT_UNPROT_DEAUTH)
1717 wpa_printf(MSG_DEBUG, "nl80211: Unprot Deauthenticate event");
1718 else
1719 wpa_printf(MSG_DEBUG, "nl80211: Unprot Disassociate event");
1720
1721 if (len < 24)
1722 return;
1723
1724 mgmt = (const struct ieee80211_mgmt *) frame;
1725
1726 os_memset(&event, 0, sizeof(event));
1727 /* Note: Same offset for Reason Code in both frame subtypes */
1728 if (len >= 24 + sizeof(mgmt->u.deauth))
1729 reason_code = le_to_host16(mgmt->u.deauth.reason_code);
1730
1731 if (type == EVENT_UNPROT_DISASSOC) {
1732 event.unprot_disassoc.sa = mgmt->sa;
1733 event.unprot_disassoc.da = mgmt->da;
1734 event.unprot_disassoc.reason_code = reason_code;
1735 } else {
1736 event.unprot_deauth.sa = mgmt->sa;
1737 event.unprot_deauth.da = mgmt->da;
1738 event.unprot_deauth.reason_code = reason_code;
1739 }
1740
1741 wpa_supplicant_event(drv->ctx, type, &event);
1742 }
1743
1744
1745 static void mlme_event(struct i802_bss *bss,
1746 enum nl80211_commands cmd, struct nlattr *frame,
1747 struct nlattr *addr, struct nlattr *timed_out,
1748 struct nlattr *freq, struct nlattr *ack,
1749 struct nlattr *cookie, struct nlattr *sig)
1750 {
1751 struct wpa_driver_nl80211_data *drv = bss->drv;
1752 const u8 *data;
1753 size_t len;
1754
1755 if (timed_out && addr) {
1756 mlme_timeout_event(drv, cmd, addr);
1757 return;
1758 }
1759
1760 if (frame == NULL) {
1761 wpa_printf(MSG_DEBUG,
1762 "nl80211: MLME event %d (%s) without frame data",
1763 cmd, nl80211_command_to_string(cmd));
1764 return;
1765 }
1766
1767 data = nla_data(frame);
1768 len = nla_len(frame);
1769 if (len < 4 + 2 * ETH_ALEN) {
1770 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s("
1771 MACSTR ") - too short",
1772 cmd, nl80211_command_to_string(cmd), bss->ifname,
1773 MAC2STR(bss->addr));
1774 return;
1775 }
1776 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" MACSTR
1777 ") A1=" MACSTR " A2=" MACSTR, cmd,
1778 nl80211_command_to_string(cmd), bss->ifname,
1779 MAC2STR(bss->addr), MAC2STR(data + 4),
1780 MAC2STR(data + 4 + ETH_ALEN));
1781 if (cmd != NL80211_CMD_FRAME_TX_STATUS && !(data[4] & 0x01) &&
1782 os_memcmp(bss->addr, data + 4, ETH_ALEN) != 0 &&
1783 os_memcmp(bss->addr, data + 4 + ETH_ALEN, ETH_ALEN) != 0) {
1784 wpa_printf(MSG_MSGDUMP, "nl80211: %s: Ignore MLME frame event "
1785 "for foreign address", bss->ifname);
1786 return;
1787 }
1788 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame",
1789 nla_data(frame), nla_len(frame));
1790
1791 switch (cmd) {
1792 case NL80211_CMD_AUTHENTICATE:
1793 mlme_event_auth(drv, nla_data(frame), nla_len(frame));
1794 break;
1795 case NL80211_CMD_ASSOCIATE:
1796 mlme_event_assoc(drv, nla_data(frame), nla_len(frame));
1797 break;
1798 case NL80211_CMD_DEAUTHENTICATE:
1799 mlme_event_deauth_disassoc(drv, EVENT_DEAUTH,
1800 nla_data(frame), nla_len(frame));
1801 break;
1802 case NL80211_CMD_DISASSOCIATE:
1803 mlme_event_deauth_disassoc(drv, EVENT_DISASSOC,
1804 nla_data(frame), nla_len(frame));
1805 break;
1806 case NL80211_CMD_FRAME:
1807 mlme_event_mgmt(drv, freq, sig, nla_data(frame),
1808 nla_len(frame));
1809 break;
1810 case NL80211_CMD_FRAME_TX_STATUS:
1811 mlme_event_mgmt_tx_status(drv, cookie, nla_data(frame),
1812 nla_len(frame), ack);
1813 break;
1814 case NL80211_CMD_UNPROT_DEAUTHENTICATE:
1815 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH,
1816 nla_data(frame), nla_len(frame));
1817 break;
1818 case NL80211_CMD_UNPROT_DISASSOCIATE:
1819 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC,
1820 nla_data(frame), nla_len(frame));
1821 break;
1822 default:
1823 break;
1824 }
1825 }
1826
1827
1828 static void mlme_event_michael_mic_failure(struct i802_bss *bss,
1829 struct nlattr *tb[])
1830 {
1831 union wpa_event_data data;
1832
1833 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure");
1834 os_memset(&data, 0, sizeof(data));
1835 if (tb[NL80211_ATTR_MAC]) {
1836 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address",
1837 nla_data(tb[NL80211_ATTR_MAC]),
1838 nla_len(tb[NL80211_ATTR_MAC]));
1839 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]);
1840 }
1841 if (tb[NL80211_ATTR_KEY_SEQ]) {
1842 wpa_hexdump(MSG_DEBUG, "nl80211: TSC",
1843 nla_data(tb[NL80211_ATTR_KEY_SEQ]),
1844 nla_len(tb[NL80211_ATTR_KEY_SEQ]));
1845 }
1846 if (tb[NL80211_ATTR_KEY_TYPE]) {
1847 enum nl80211_key_type key_type =
1848 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]);
1849 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type);
1850 if (key_type == NL80211_KEYTYPE_PAIRWISE)
1851 data.michael_mic_failure.unicast = 1;
1852 } else
1853 data.michael_mic_failure.unicast = 1;
1854
1855 if (tb[NL80211_ATTR_KEY_IDX]) {
1856 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]);
1857 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id);
1858 }
1859
1860 wpa_supplicant_event(bss->ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
1861 }
1862
1863
1864 static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv,
1865 struct nlattr *tb[])
1866 {
1867 if (tb[NL80211_ATTR_MAC] == NULL) {
1868 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined "
1869 "event");
1870 return;
1871 }
1872 os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
1873
1874 drv->associated = 1;
1875 wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined",
1876 MAC2STR(drv->bssid));
1877
1878 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL);
1879 }
1880
1881
1882 static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv,
1883 int cancel_event, struct nlattr *tb[])
1884 {
1885 unsigned int freq, chan_type, duration;
1886 union wpa_event_data data;
1887 u64 cookie;
1888
1889 if (tb[NL80211_ATTR_WIPHY_FREQ])
1890 freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]);
1891 else
1892 freq = 0;
1893
1894 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
1895 chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1896 else
1897 chan_type = 0;
1898
1899 if (tb[NL80211_ATTR_DURATION])
1900 duration = nla_get_u32(tb[NL80211_ATTR_DURATION]);
1901 else
1902 duration = 0;
1903
1904 if (tb[NL80211_ATTR_COOKIE])
1905 cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
1906 else
1907 cookie = 0;
1908
1909 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d "
1910 "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))",
1911 cancel_event, freq, chan_type, duration,
1912 (long long unsigned int) cookie,
1913 cookie == drv->remain_on_chan_cookie ? "match" : "unknown");
1914
1915 if (cookie != drv->remain_on_chan_cookie)
1916 return; /* not for us */
1917
1918 if (cancel_event)
1919 drv->pending_remain_on_chan = 0;
1920
1921 os_memset(&data, 0, sizeof(data));
1922 data.remain_on_channel.freq = freq;
1923 data.remain_on_channel.duration = duration;
1924 wpa_supplicant_event(drv->ctx, cancel_event ?
1925 EVENT_CANCEL_REMAIN_ON_CHANNEL :
1926 EVENT_REMAIN_ON_CHANNEL, &data);
1927 }
1928
1929
1930 static void mlme_event_ft_event(struct wpa_driver_nl80211_data *drv,
1931 struct nlattr *tb[])
1932 {
1933 union wpa_event_data data;
1934
1935 os_memset(&data, 0, sizeof(data));
1936
1937 if (tb[NL80211_ATTR_IE]) {
1938 data.ft_ies.ies = nla_data(tb[NL80211_ATTR_IE]);
1939 data.ft_ies.ies_len = nla_len(tb[NL80211_ATTR_IE]);
1940 }
1941
1942 if (tb[NL80211_ATTR_IE_RIC]) {
1943 data.ft_ies.ric_ies = nla_data(tb[NL80211_ATTR_IE_RIC]);
1944 data.ft_ies.ric_ies_len = nla_len(tb[NL80211_ATTR_IE_RIC]);
1945 }
1946
1947 if (tb[NL80211_ATTR_MAC])
1948 os_memcpy(data.ft_ies.target_ap,
1949 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
1950
1951 wpa_printf(MSG_DEBUG, "nl80211: FT event target_ap " MACSTR,
1952 MAC2STR(data.ft_ies.target_ap));
1953
1954 wpa_supplicant_event(drv->ctx, EVENT_FT_RESPONSE, &data);
1955 }
1956
1957
1958 static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted,
1959 struct nlattr *tb[])
1960 {
1961 union wpa_event_data event;
1962 struct nlattr *nl;
1963 int rem;
1964 struct scan_info *info;
1965 #define MAX_REPORT_FREQS 50
1966 int freqs[MAX_REPORT_FREQS];
1967 int num_freqs = 0;
1968
1969 if (drv->scan_for_auth) {
1970 drv->scan_for_auth = 0;
1971 wpa_printf(MSG_DEBUG, "nl80211: Scan results for missing "
1972 "cfg80211 BSS entry");
1973 wpa_driver_nl80211_authenticate_retry(drv);
1974 return;
1975 }
1976
1977 os_memset(&event, 0, sizeof(event));
1978 info = &event.scan_info;
1979 info->aborted = aborted;
1980
1981 if (tb[NL80211_ATTR_SCAN_SSIDS]) {
1982 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) {
1983 struct wpa_driver_scan_ssid *s =
1984 &info->ssids[info->num_ssids];
1985 s->ssid = nla_data(nl);
1986 s->ssid_len = nla_len(nl);
1987 info->num_ssids++;
1988 if (info->num_ssids == WPAS_MAX_SCAN_SSIDS)
1989 break;
1990 }
1991 }
1992 if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) {
1993 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem)
1994 {
1995 freqs[num_freqs] = nla_get_u32(nl);
1996 num_freqs++;
1997 if (num_freqs == MAX_REPORT_FREQS - 1)
1998 break;
1999 }
2000 info->freqs = freqs;
2001 info->num_freqs = num_freqs;
2002 }
2003 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event);
2004 }
2005
2006
2007 static int get_link_signal(struct nl_msg *msg, void *arg)
2008 {
2009 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2010 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2011 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1];
2012 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = {
2013 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 },
2014 [NL80211_STA_INFO_SIGNAL_AVG] = { .type = NLA_U8 },
2015 };
2016 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1];
2017 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = {
2018 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 },
2019 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 },
2020 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG },
2021 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG },
2022 };
2023 struct wpa_signal_info *sig_change = arg;
2024
2025 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2026 genlmsg_attrlen(gnlh, 0), NULL);
2027 if (!tb[NL80211_ATTR_STA_INFO] ||
2028 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX,
2029 tb[NL80211_ATTR_STA_INFO], policy))
2030 return NL_SKIP;
2031 if (!sinfo[NL80211_STA_INFO_SIGNAL])
2032 return NL_SKIP;
2033
2034 sig_change->current_signal =
2035 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]);
2036
2037 if (sinfo[NL80211_STA_INFO_SIGNAL_AVG])
2038 sig_change->avg_signal =
2039 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL_AVG]);
2040 else
2041 sig_change->avg_signal = 0;
2042
2043 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) {
2044 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX,
2045 sinfo[NL80211_STA_INFO_TX_BITRATE],
2046 rate_policy)) {
2047 sig_change->current_txrate = 0;
2048 } else {
2049 if (rinfo[NL80211_RATE_INFO_BITRATE]) {
2050 sig_change->current_txrate =
2051 nla_get_u16(rinfo[
2052 NL80211_RATE_INFO_BITRATE]) * 100;
2053 }
2054 }
2055 }
2056
2057 return NL_SKIP;
2058 }
2059
2060
2061 static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv,
2062 struct wpa_signal_info *sig)
2063 {
2064 struct nl_msg *msg;
2065
2066 sig->current_signal = -9999;
2067 sig->current_txrate = 0;
2068
2069 msg = nlmsg_alloc();
2070 if (!msg)
2071 return -ENOMEM;
2072
2073 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION);
2074
2075 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2076 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
2077
2078 return send_and_recv_msgs(drv, msg, get_link_signal, sig);
2079 nla_put_failure:
2080 nlmsg_free(msg);
2081 return -ENOBUFS;
2082 }
2083
2084
2085 static int get_link_noise(struct nl_msg *msg, void *arg)
2086 {
2087 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2088 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2089 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
2090 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
2091 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
2092 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
2093 };
2094 struct wpa_signal_info *sig_change = arg;
2095
2096 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2097 genlmsg_attrlen(gnlh, 0), NULL);
2098
2099 if (!tb[NL80211_ATTR_SURVEY_INFO]) {
2100 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!");
2101 return NL_SKIP;
2102 }
2103
2104 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
2105 tb[NL80211_ATTR_SURVEY_INFO],
2106 survey_policy)) {
2107 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested "
2108 "attributes!");
2109 return NL_SKIP;
2110 }
2111
2112 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY])
2113 return NL_SKIP;
2114
2115 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) !=
2116 sig_change->frequency)
2117 return NL_SKIP;
2118
2119 if (!sinfo[NL80211_SURVEY_INFO_NOISE])
2120 return NL_SKIP;
2121
2122 sig_change->current_noise =
2123 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
2124
2125 return NL_SKIP;
2126 }
2127
2128
2129 static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv,
2130 struct wpa_signal_info *sig_change)
2131 {
2132 struct nl_msg *msg;
2133
2134 sig_change->current_noise = 9999;
2135 sig_change->frequency = drv->assoc_freq;
2136
2137 msg = nlmsg_alloc();
2138 if (!msg)
2139 return -ENOMEM;
2140
2141 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
2142
2143 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2144
2145 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change);
2146 nla_put_failure:
2147 nlmsg_free(msg);
2148 return -ENOBUFS;
2149 }
2150
2151
2152 static int get_noise_for_scan_results(struct nl_msg *msg, void *arg)
2153 {
2154 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2155 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2156 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
2157 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
2158 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
2159 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
2160 };
2161 struct wpa_scan_results *scan_results = arg;
2162 struct wpa_scan_res *scan_res;
2163 size_t i;
2164
2165 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2166 genlmsg_attrlen(gnlh, 0), NULL);
2167
2168 if (!tb[NL80211_ATTR_SURVEY_INFO]) {
2169 wpa_printf(MSG_DEBUG, "nl80211: Survey data missing");
2170 return NL_SKIP;
2171 }
2172
2173 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
2174 tb[NL80211_ATTR_SURVEY_INFO],
2175 survey_policy)) {
2176 wpa_printf(MSG_DEBUG, "nl80211: Failed to parse nested "
2177 "attributes");
2178 return NL_SKIP;
2179 }
2180
2181 if (!sinfo[NL80211_SURVEY_INFO_NOISE])
2182 return NL_SKIP;
2183
2184 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY])
2185 return NL_SKIP;
2186
2187 for (i = 0; i < scan_results->num; ++i) {
2188 scan_res = scan_results->res[i];
2189 if (!scan_res)
2190 continue;
2191 if ((int) nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) !=
2192 scan_res->freq)
2193 continue;
2194 if (!(scan_res->flags & WPA_SCAN_NOISE_INVALID))
2195 continue;
2196 scan_res->noise = (s8)
2197 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
2198 scan_res->flags &= ~WPA_SCAN_NOISE_INVALID;
2199 }
2200
2201 return NL_SKIP;
2202 }
2203
2204
2205 static int nl80211_get_noise_for_scan_results(
2206 struct wpa_driver_nl80211_data *drv,
2207 struct wpa_scan_results *scan_res)
2208 {
2209 struct nl_msg *msg;
2210
2211 msg = nlmsg_alloc();
2212 if (!msg)
2213 return -ENOMEM;
2214
2215 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
2216
2217 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2218
2219 return send_and_recv_msgs(drv, msg, get_noise_for_scan_results,
2220 scan_res);
2221 nla_put_failure:
2222 nlmsg_free(msg);
2223 return -ENOBUFS;
2224 }
2225
2226
2227 static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv,
2228 struct nlattr *tb[])
2229 {
2230 static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
2231 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
2232 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 },
2233 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
2234 [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 },
2235 };
2236 struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1];
2237 enum nl80211_cqm_rssi_threshold_event event;
2238 union wpa_event_data ed;
2239 struct wpa_signal_info sig;
2240 int res;
2241
2242 if (tb[NL80211_ATTR_CQM] == NULL ||
2243 nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM],
2244 cqm_policy)) {
2245 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event");
2246 return;
2247 }
2248
2249 os_memset(&ed, 0, sizeof(ed));
2250
2251 if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) {
2252 if (!tb[NL80211_ATTR_MAC])
2253 return;
2254 os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]),
2255 ETH_ALEN);
2256 wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed);
2257 return;
2258 }
2259
2260 if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL)
2261 return;
2262 event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]);
2263
2264 if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) {
2265 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
2266 "event: RSSI high");
2267 ed.signal_change.above_threshold = 1;
2268 } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) {
2269 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
2270 "event: RSSI low");
2271 ed.signal_change.above_threshold = 0;
2272 } else
2273 return;
2274
2275 res = nl80211_get_link_signal(drv, &sig);
2276 if (res == 0) {
2277 ed.signal_change.current_signal = sig.current_signal;
2278 ed.signal_change.current_txrate = sig.current_txrate;
2279 wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d",
2280 sig.current_signal, sig.current_txrate);
2281 }
2282
2283 res = nl80211_get_link_noise(drv, &sig);
2284 if (res == 0) {
2285 ed.signal_change.current_noise = sig.current_noise;
2286 wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm",
2287 sig.current_noise);
2288 }
2289
2290 wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed);
2291 }
2292
2293
2294 static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv,
2295 struct nlattr **tb)
2296 {
2297 u8 *addr;
2298 union wpa_event_data data;
2299
2300 if (tb[NL80211_ATTR_MAC] == NULL)
2301 return;
2302 addr = nla_data(tb[NL80211_ATTR_MAC]);
2303 wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr));
2304
2305 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) {
2306 u8 *ies = NULL;
2307 size_t ies_len = 0;
2308 if (tb[NL80211_ATTR_IE]) {
2309 ies = nla_data(tb[NL80211_ATTR_IE]);
2310 ies_len = nla_len(tb[NL80211_ATTR_IE]);
2311 }
2312 wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len);
2313 drv_event_assoc(drv->ctx, addr, ies, ies_len, 0);
2314 return;
2315 }
2316
2317 if (drv->nlmode != NL80211_IFTYPE_ADHOC)
2318 return;
2319
2320 os_memset(&data, 0, sizeof(data));
2321 os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN);
2322 wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data);
2323 }
2324
2325
2326 static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv,
2327 struct nlattr **tb)
2328 {
2329 u8 *addr;
2330 union wpa_event_data data;
2331
2332 if (tb[NL80211_ATTR_MAC] == NULL)
2333 return;
2334 addr = nla_data(tb[NL80211_ATTR_MAC]);
2335 wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR,
2336 MAC2STR(addr));
2337
2338 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) {
2339 drv_event_disassoc(drv->ctx, addr);
2340 return;
2341 }
2342
2343 if (drv->nlmode != NL80211_IFTYPE_ADHOC)
2344 return;
2345
2346 os_memset(&data, 0, sizeof(data));
2347 os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN);
2348 wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data);
2349 }
2350
2351
2352 static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv,
2353 struct nlattr **tb)
2354 {
2355 struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA];
2356 static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = {
2357 [NL80211_REKEY_DATA_KEK] = {
2358 .minlen = NL80211_KEK_LEN,
2359 .maxlen = NL80211_KEK_LEN,
2360 },
2361 [NL80211_REKEY_DATA_KCK] = {
2362 .minlen = NL80211_KCK_LEN,
2363 .maxlen = NL80211_KCK_LEN,
2364 },
2365 [NL80211_REKEY_DATA_REPLAY_CTR] = {
2366 .minlen = NL80211_REPLAY_CTR_LEN,
2367 .maxlen = NL80211_REPLAY_CTR_LEN,
2368 },
2369 };
2370 union wpa_event_data data;
2371
2372 if (!tb[NL80211_ATTR_MAC])
2373 return;
2374 if (!tb[NL80211_ATTR_REKEY_DATA])
2375 return;
2376 if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA,
2377 tb[NL80211_ATTR_REKEY_DATA], rekey_policy))
2378 return;
2379 if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR])
2380 return;
2381
2382 os_memset(&data, 0, sizeof(data));
2383 data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]);
2384 wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR,
2385 MAC2STR(data.driver_gtk_rekey.bssid));
2386 data.driver_gtk_rekey.replay_ctr =
2387 nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]);
2388 wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter",
2389 data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN);
2390 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data);
2391 }
2392
2393
2394 static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv,
2395 struct nlattr **tb)
2396 {
2397 struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE];
2398 static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = {
2399 [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 },
2400 [NL80211_PMKSA_CANDIDATE_BSSID] = {
2401 .minlen = ETH_ALEN,
2402 .maxlen = ETH_ALEN,
2403 },
2404 [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG },
2405 };
2406 union wpa_event_data data;
2407
2408 wpa_printf(MSG_DEBUG, "nl80211: PMKSA candidate event");
2409
2410 if (!tb[NL80211_ATTR_PMKSA_CANDIDATE])
2411 return;
2412 if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE,
2413 tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy))
2414 return;
2415 if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] ||
2416 !cand[NL80211_PMKSA_CANDIDATE_BSSID])
2417 return;
2418
2419 os_memset(&data, 0, sizeof(data));
2420 os_memcpy(data.pmkid_candidate.bssid,
2421 nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN);
2422 data.pmkid_candidate.index =
2423 nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]);
2424 data.pmkid_candidate.preauth =
2425 cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL;
2426 wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data);
2427 }
2428
2429
2430 static void nl80211_client_probe_event(struct wpa_driver_nl80211_data *drv,
2431 struct nlattr **tb)
2432 {
2433 union wpa_event_data data;
2434
2435 wpa_printf(MSG_DEBUG, "nl80211: Probe client event");
2436
2437 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_ACK])
2438 return;
2439
2440 os_memset(&data, 0, sizeof(data));
2441 os_memcpy(data.client_poll.addr,
2442 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
2443
2444 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_CLIENT_POLL_OK, &data);
2445 }
2446
2447
2448 static void nl80211_tdls_oper_event(struct wpa_driver_nl80211_data *drv,
2449 struct nlattr **tb)
2450 {
2451 union wpa_event_data data;
2452
2453 wpa_printf(MSG_DEBUG, "nl80211: TDLS operation event");
2454
2455 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_TDLS_OPERATION])
2456 return;
2457
2458 os_memset(&data, 0, sizeof(data));
2459 os_memcpy(data.tdls.peer, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
2460 switch (nla_get_u8(tb[NL80211_ATTR_TDLS_OPERATION])) {
2461 case NL80211_TDLS_SETUP:
2462 wpa_printf(MSG_DEBUG, "nl80211: TDLS setup request for peer "
2463 MACSTR, MAC2STR(data.tdls.peer));
2464 data.tdls.oper = TDLS_REQUEST_SETUP;
2465 break;
2466 case NL80211_TDLS_TEARDOWN:
2467 wpa_printf(MSG_DEBUG, "nl80211: TDLS teardown request for peer "
2468 MACSTR, MAC2STR(data.tdls.peer));
2469 data.tdls.oper = TDLS_REQUEST_TEARDOWN;
2470 break;
2471 default:
2472 wpa_printf(MSG_DEBUG, "nl80211: Unsupported TDLS operatione "
2473 "event");
2474 return;
2475 }
2476 if (tb[NL80211_ATTR_REASON_CODE]) {
2477 data.tdls.reason_code =
2478 nla_get_u16(tb[NL80211_ATTR_REASON_CODE]);
2479 }
2480
2481 wpa_supplicant_event(drv->ctx, EVENT_TDLS, &data);
2482 }
2483
2484
2485 static void nl80211_stop_ap(struct wpa_driver_nl80211_data *drv,
2486 struct nlattr **tb)
2487 {
2488 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_UNAVAILABLE, NULL);
2489 }
2490
2491
2492 static void nl80211_connect_failed_event(struct wpa_driver_nl80211_data *drv,
2493 struct nlattr **tb)
2494 {
2495 union wpa_event_data data;
2496 u32 reason;
2497
2498 wpa_printf(MSG_DEBUG, "nl80211: Connect failed event");
2499
2500 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_CONN_FAILED_REASON])
2501 return;
2502
2503 os_memset(&data, 0, sizeof(data));
2504 os_memcpy(data.connect_failed_reason.addr,
2505 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
2506
2507 reason = nla_get_u32(tb[NL80211_ATTR_CONN_FAILED_REASON]);
2508 switch (reason) {
2509 case NL80211_CONN_FAIL_MAX_CLIENTS:
2510 wpa_printf(MSG_DEBUG, "nl80211: Max client reached");
2511 data.connect_failed_reason.code = MAX_CLIENT_REACHED;
2512 break;
2513 case NL80211_CONN_FAIL_BLOCKED_CLIENT:
2514 wpa_printf(MSG_DEBUG, "nl80211: Blocked client " MACSTR
2515 " tried to connect",
2516 MAC2STR(data.connect_failed_reason.addr));
2517 data.connect_failed_reason.code = BLOCKED_CLIENT;
2518 break;
2519 default:
2520 wpa_printf(MSG_DEBUG, "nl8021l: Unknown connect failed reason "
2521 "%u", reason);
2522 return;
2523 }
2524
2525 wpa_supplicant_event(drv->ctx, EVENT_CONNECT_FAILED_REASON, &data);
2526 }
2527
2528
2529 static enum chan_width convert2width(int width);
2530
2531 static void nl80211_radar_event(struct wpa_driver_nl80211_data *drv,
2532 struct nlattr **tb)
2533 {
2534 union wpa_event_data data;
2535 enum nl80211_radar_event event_type;
2536
2537 if (!tb[NL80211_ATTR_WIPHY_FREQ] || !tb[NL80211_ATTR_RADAR_EVENT])
2538 return;
2539
2540 os_memset(&data, 0, sizeof(data));
2541 data.dfs_event.freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]);
2542 event_type = nla_get_u32(tb[NL80211_ATTR_RADAR_EVENT]);
2543
2544 /* Check HT params */
2545 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
2546 data.dfs_event.ht_enabled = 1;
2547 data.dfs_event.chan_offset = 0;
2548
2549 switch (nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])) {
2550 case NL80211_CHAN_NO_HT:
2551 data.dfs_event.ht_enabled = 0;
2552 break;
2553 case NL80211_CHAN_HT20:
2554 break;
2555 case NL80211_CHAN_HT40PLUS:
2556 data.dfs_event.chan_offset = 1;
2557 break;
2558 case NL80211_CHAN_HT40MINUS:
2559 data.dfs_event.chan_offset = -1;
2560 break;
2561 }
2562 }
2563
2564 /* Get VHT params */
2565 data.dfs_event.chan_width =
2566 convert2width(nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH]));
2567 data.dfs_event.cf1 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]);
2568 if (tb[NL80211_ATTR_CENTER_FREQ2])
2569 data.dfs_event.cf2 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]);
2570
2571 wpa_printf(MSG_DEBUG, "nl80211: DFS event on freq %d MHz, ht: %d, offset: %d, width: %d, cf1: %dMHz, cf2: %dMHz",
2572 data.dfs_event.freq, data.dfs_event.ht_enabled,
2573 data.dfs_event.chan_offset, data.dfs_event.chan_width,
2574 data.dfs_event.cf1, data.dfs_event.cf2);
2575
2576 switch (event_type) {
2577 case NL80211_RADAR_DETECTED:
2578 wpa_supplicant_event(drv->ctx, EVENT_DFS_RADAR_DETECTED, &data);
2579 break;
2580 case NL80211_RADAR_CAC_FINISHED:
2581 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_FINISHED, &data);
2582 break;
2583 case NL80211_RADAR_CAC_ABORTED:
2584 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_ABORTED, &data);
2585 break;
2586 case NL80211_RADAR_NOP_FINISHED:
2587 wpa_supplicant_event(drv->ctx, EVENT_DFS_NOP_FINISHED, &data);
2588 break;
2589 default:
2590 wpa_printf(MSG_DEBUG, "nl80211: Unknown radar event %d "
2591 "received", event_type);
2592 break;
2593 }
2594 }
2595
2596
2597 static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb,
2598 int wds)
2599 {
2600 struct wpa_driver_nl80211_data *drv = bss->drv;
2601 union wpa_event_data event;
2602
2603 if (!tb[NL80211_ATTR_MAC])
2604 return;
2605
2606 os_memset(&event, 0, sizeof(event));
2607 event.rx_from_unknown.bssid = bss->addr;
2608 event.rx_from_unknown.addr = nla_data(tb[NL80211_ATTR_MAC]);
2609 event.rx_from_unknown.wds = wds;
2610
2611 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event);
2612 }
2613
2614
2615 static void do_process_drv_event(struct i802_bss *bss, int cmd,
2616 struct nlattr **tb)
2617 {
2618 struct wpa_driver_nl80211_data *drv = bss->drv;
2619
2620 wpa_printf(MSG_DEBUG, "nl80211: Drv Event %d (%s) received for %s",
2621 cmd, nl80211_command_to_string(cmd), bss->ifname);
2622
2623 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED &&
2624 (cmd == NL80211_CMD_NEW_SCAN_RESULTS ||
2625 cmd == NL80211_CMD_SCAN_ABORTED)) {
2626 wpa_driver_nl80211_set_mode(&drv->first_bss,
2627 drv->ap_scan_as_station);
2628 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
2629 }
2630
2631 switch (cmd) {
2632 case NL80211_CMD_TRIGGER_SCAN:
2633 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan trigger");
2634 drv->scan_state = SCAN_STARTED;
2635 break;
2636 case NL80211_CMD_START_SCHED_SCAN:
2637 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan started");
2638 drv->scan_state = SCHED_SCAN_STARTED;
2639 break;
2640 case NL80211_CMD_SCHED_SCAN_STOPPED:
2641 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan stopped");
2642 drv->scan_state = SCHED_SCAN_STOPPED;
2643 wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL);
2644 break;
2645 case NL80211_CMD_NEW_SCAN_RESULTS:
2646 wpa_dbg(drv->ctx, MSG_DEBUG,
2647 "nl80211: New scan results available");
2648 drv->scan_state = SCAN_COMPLETED;
2649 drv->scan_complete_events = 1;
2650 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
2651 drv->ctx);
2652 send_scan_event(drv, 0, tb);
2653 break;
2654 case NL80211_CMD_SCHED_SCAN_RESULTS:
2655 wpa_dbg(drv->ctx, MSG_DEBUG,
2656 "nl80211: New sched scan results available");
2657 drv->scan_state = SCHED_SCAN_RESULTS;
2658 send_scan_event(drv, 0, tb);
2659 break;
2660 case NL80211_CMD_SCAN_ABORTED:
2661 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan aborted");
2662 drv->scan_state = SCAN_ABORTED;
2663 /*
2664 * Need to indicate that scan results are available in order
2665 * not to make wpa_supplicant stop its scanning.
2666 */
2667 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
2668 drv->ctx);
2669 send_scan_event(drv, 1, tb);
2670 break;
2671 case NL80211_CMD_AUTHENTICATE:
2672 case NL80211_CMD_ASSOCIATE:
2673 case NL80211_CMD_DEAUTHENTICATE:
2674 case NL80211_CMD_DISASSOCIATE:
2675 case NL80211_CMD_FRAME_TX_STATUS:
2676 case NL80211_CMD_UNPROT_DEAUTHENTICATE:
2677 case NL80211_CMD_UNPROT_DISASSOCIATE:
2678 mlme_event(bss, cmd, tb[NL80211_ATTR_FRAME],
2679 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT],
2680 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK],
2681 tb[NL80211_ATTR_COOKIE],
2682 tb[NL80211_ATTR_RX_SIGNAL_DBM]);
2683 break;
2684 case NL80211_CMD_CONNECT:
2685 case NL80211_CMD_ROAM:
2686 mlme_event_connect(drv, cmd,
2687 tb[NL80211_ATTR_STATUS_CODE],
2688 tb[NL80211_ATTR_MAC],
2689 tb[NL80211_ATTR_REQ_IE],
2690 tb[NL80211_ATTR_RESP_IE]);
2691 break;
2692 case NL80211_CMD_CH_SWITCH_NOTIFY:
2693 mlme_event_ch_switch(drv, tb[NL80211_ATTR_WIPHY_FREQ],
2694 tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
2695 break;
2696 case NL80211_CMD_DISCONNECT:
2697 mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE],
2698 tb[NL80211_ATTR_MAC],
2699 tb[NL80211_ATTR_DISCONNECTED_BY_AP]);
2700 break;
2701 case NL80211_CMD_MICHAEL_MIC_FAILURE:
2702 mlme_event_michael_mic_failure(bss, tb);
2703 break;
2704 case NL80211_CMD_JOIN_IBSS:
2705 mlme_event_join_ibss(drv, tb);
2706 break;
2707 case NL80211_CMD_REMAIN_ON_CHANNEL:
2708 mlme_event_remain_on_channel(drv, 0, tb);
2709 break;
2710 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL:
2711 mlme_event_remain_on_channel(drv, 1, tb);
2712 break;
2713 case NL80211_CMD_NOTIFY_CQM:
2714 nl80211_cqm_event(drv, tb);
2715 break;
2716 case NL80211_CMD_REG_CHANGE:
2717 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change");
2718 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED,
2719 NULL);
2720 break;
2721 case NL80211_CMD_REG_BEACON_HINT:
2722 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint");
2723 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED,
2724 NULL);
2725 break;
2726 case NL80211_CMD_NEW_STATION:
2727 nl80211_new_station_event(drv, tb);
2728 break;
2729 case NL80211_CMD_DEL_STATION:
2730 nl80211_del_station_event(drv, tb);
2731 break;
2732 case NL80211_CMD_SET_REKEY_OFFLOAD:
2733 nl80211_rekey_offload_event(drv, tb);
2734 break;
2735 case NL80211_CMD_PMKSA_CANDIDATE:
2736 nl80211_pmksa_candidate_event(drv, tb);
2737 break;
2738 case NL80211_CMD_PROBE_CLIENT:
2739 nl80211_client_probe_event(drv, tb);
2740 break;
2741 case NL80211_CMD_TDLS_OPER:
2742 nl80211_tdls_oper_event(drv, tb);
2743 break;
2744 case NL80211_CMD_CONN_FAILED:
2745 nl80211_connect_failed_event(drv, tb);
2746 break;
2747 case NL80211_CMD_FT_EVENT:
2748 mlme_event_ft_event(drv, tb);
2749 break;
2750 case NL80211_CMD_RADAR_DETECT:
2751 nl80211_radar_event(drv, tb);
2752 break;
2753 case NL80211_CMD_STOP_AP:
2754 nl80211_stop_ap(drv, tb);
2755 break;
2756 default:
2757 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Ignored unknown event "
2758 "(cmd=%d)", cmd);
2759 break;
2760 }
2761 }
2762
2763
2764 static int process_drv_event(struct nl_msg *msg, void *arg)
2765 {
2766 struct wpa_driver_nl80211_data *drv = arg;
2767 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2768 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2769 struct i802_bss *bss;
2770 int ifidx = -1;
2771
2772 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2773 genlmsg_attrlen(gnlh, 0), NULL);
2774
2775 if (tb[NL80211_ATTR_IFINDEX]) {
2776 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
2777
2778 for (bss = &drv->first_bss; bss; bss = bss->next)
2779 if (ifidx == -1 || ifidx == bss->ifindex) {
2780 do_process_drv_event(bss, gnlh->cmd, tb);
2781 return NL_SKIP;
2782 }
2783 wpa_printf(MSG_DEBUG,
2784 "nl80211: Ignored event (cmd=%d) for foreign interface (ifindex %d)",
2785 gnlh->cmd, ifidx);
2786 } else if (tb[NL80211_ATTR_WDEV]) {
2787 u64 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]);
2788 wpa_printf(MSG_DEBUG, "nl80211: Process event on P2P device");
2789 for (bss = &drv->first_bss; bss; bss = bss->next) {
2790 if (bss->wdev_id_set && wdev_id == bss->wdev_id) {
2791 do_process_drv_event(bss, gnlh->cmd, tb);
2792 return NL_SKIP;
2793 }
2794 }
2795 wpa_printf(MSG_DEBUG,
2796 "nl80211: Ignored event (cmd=%d) for foreign interface (wdev 0x%llx)",
2797 gnlh->cmd, (long long unsigned int) wdev_id);
2798 }
2799
2800 return NL_SKIP;
2801 }
2802
2803
2804 static int process_global_event(struct nl_msg *msg, void *arg)
2805 {
2806 struct nl80211_global *global = arg;
2807 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2808 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2809 struct wpa_driver_nl80211_data *drv, *tmp;
2810 int ifidx = -1;
2811 struct i802_bss *bss;
2812 u64 wdev_id = 0;
2813 int wdev_id_set = 0;
2814
2815 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2816 genlmsg_attrlen(gnlh, 0), NULL);
2817
2818 if (tb[NL80211_ATTR_IFINDEX])
2819 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
2820 else if (tb[NL80211_ATTR_WDEV]) {
2821 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]);
2822 wdev_id_set = 1;
2823 }
2824
2825 dl_list_for_each_safe(drv, tmp, &global->interfaces,
2826 struct wpa_driver_nl80211_data, list) {
2827 for (bss = &drv->first_bss; bss; bss = bss->next) {
2828 if ((ifidx == -1 && !wdev_id_set) ||
2829 ifidx == bss->ifindex ||
2830 (wdev_id_set && bss->wdev_id_set &&
2831 wdev_id == bss->wdev_id)) {
2832 do_process_drv_event(bss, gnlh->cmd, tb);
2833 return NL_SKIP;
2834 }
2835 }
2836 }
2837
2838 return NL_SKIP;
2839 }
2840
2841
2842 static int process_bss_event(struct nl_msg *msg, void *arg)
2843 {
2844 struct i802_bss *bss = arg;
2845 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2846 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2847
2848 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2849 genlmsg_attrlen(gnlh, 0), NULL);
2850
2851 wpa_printf(MSG_DEBUG, "nl80211: BSS Event %d (%s) received for %s",
2852 gnlh->cmd, nl80211_command_to_string(gnlh->cmd),
2853 bss->ifname);
2854
2855 switch (gnlh->cmd) {
2856 case NL80211_CMD_FRAME:
2857 case NL80211_CMD_FRAME_TX_STATUS:
2858 mlme_event(bss, gnlh->cmd, tb[NL80211_ATTR_FRAME],
2859 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT],
2860 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK],
2861 tb[NL80211_ATTR_COOKIE],
2862 tb[NL80211_ATTR_RX_SIGNAL_DBM]);
2863 break;
2864 case NL80211_CMD_UNEXPECTED_FRAME:
2865 nl80211_spurious_frame(bss, tb, 0);
2866 break;
2867 case NL80211_CMD_UNEXPECTED_4ADDR_FRAME:
2868 nl80211_spurious_frame(bss, tb, 1);
2869 break;
2870 default:
2871 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event "
2872 "(cmd=%d)", gnlh->cmd);
2873 break;
2874 }
2875
2876 return NL_SKIP;
2877 }
2878
2879
2880 static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx,
2881 void *handle)
2882 {
2883 struct nl_cb *cb = eloop_ctx;
2884 int res;
2885
2886 wpa_printf(MSG_MSGDUMP, "nl80211: Event message available");
2887
2888 res = nl_recvmsgs(handle, cb);
2889 if (res) {
2890 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d",
2891 __func__, res);
2892 }
2893 }
2894
2895
2896 /**
2897 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain
2898 * @priv: driver_nl80211 private data
2899 * @alpha2_arg: country to which to switch to
2900 * Returns: 0 on success, -1 on failure
2901 *
2902 * This asks nl80211 to set the regulatory domain for given
2903 * country ISO / IEC alpha2.
2904 */
2905 static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg)
2906 {
2907 struct i802_bss *bss = priv;
2908 struct wpa_driver_nl80211_data *drv = bss->drv;
2909 char alpha2[3];
2910 struct nl_msg *msg;
2911
2912 msg = nlmsg_alloc();
2913 if (!msg)
2914 return -ENOMEM;
2915
2916 alpha2[0] = alpha2_arg[0];
2917 alpha2[1] = alpha2_arg[1];
2918 alpha2[2] = '\0';
2919
2920 nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG);
2921
2922 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2);
2923 if (send_and_recv_msgs(drv, msg, NULL, NULL))
2924 return -EINVAL;
2925 return 0;
2926 nla_put_failure:
2927 nlmsg_free(msg);
2928 return -EINVAL;
2929 }
2930
2931
2932 static int protocol_feature_handler(struct nl_msg *msg, void *arg)
2933 {
2934 u32 *feat = arg;
2935 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
2936 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2937
2938 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2939 genlmsg_attrlen(gnlh, 0), NULL);
2940
2941 if (tb_msg[NL80211_ATTR_PROTOCOL_FEATURES])
2942 *feat = nla_get_u32(tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]);
2943
2944 return NL_SKIP;
2945 }
2946
2947
2948 static u32 get_nl80211_protocol_features(struct wpa_driver_nl80211_data *drv)
2949 {
2950 u32 feat = 0;
2951 struct nl_msg *msg;
2952
2953 msg = nlmsg_alloc();
2954 if (!msg)
2955 goto nla_put_failure;
2956
2957 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_PROTOCOL_FEATURES);
2958 if (send_and_recv_msgs(drv, msg, protocol_feature_handler, &feat) == 0)
2959 return feat;
2960
2961 msg = NULL;
2962 nla_put_failure:
2963 nlmsg_free(msg);
2964 return 0;
2965 }
2966
2967
2968 struct wiphy_info_data {
2969 struct wpa_driver_nl80211_data *drv;
2970 struct wpa_driver_capa *capa;
2971
2972 unsigned int num_multichan_concurrent;
2973
2974 unsigned int error:1;
2975 unsigned int device_ap_sme:1;
2976 unsigned int poll_command_supported:1;
2977 unsigned int data_tx_status:1;
2978 unsigned int monitor_supported:1;
2979 unsigned int auth_supported:1;
2980 unsigned int connect_supported:1;
2981 unsigned int p2p_go_supported:1;
2982 unsigned int p2p_client_supported:1;
2983 unsigned int p2p_concurrent:1;
2984 };
2985
2986
2987 static unsigned int probe_resp_offload_support(int supp_protocols)
2988 {
2989 unsigned int prot = 0;
2990
2991 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS)
2992 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS;
2993 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2)
2994 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2;
2995 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P)
2996 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P;
2997 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U)
2998 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING;
2999
3000 return prot;
3001 }
3002
3003
3004 static void wiphy_info_supported_iftypes(struct wiphy_info_data *info,
3005 struct nlattr *tb)
3006 {
3007 struct nlattr *nl_mode;
3008 int i;
3009
3010 if (tb == NULL)
3011 return;
3012
3013 nla_for_each_nested(nl_mode, tb, i) {
3014 switch (nla_type(nl_mode)) {
3015 case NL80211_IFTYPE_AP:
3016 info->capa->flags |= WPA_DRIVER_FLAGS_AP;
3017 break;
3018 case NL80211_IFTYPE_ADHOC:
3019 info->capa->flags |= WPA_DRIVER_FLAGS_IBSS;
3020 break;
3021 case NL80211_IFTYPE_P2P_DEVICE:
3022 info->capa->flags |=
3023 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE;
3024 break;
3025 case NL80211_IFTYPE_P2P_GO:
3026 info->p2p_go_supported = 1;
3027 break;
3028 case NL80211_IFTYPE_P2P_CLIENT:
3029 info->p2p_client_supported = 1;
3030 break;
3031 case NL80211_IFTYPE_MONITOR:
3032 info->monitor_supported = 1;
3033 break;
3034 }
3035 }
3036 }
3037
3038
3039 static int wiphy_info_iface_comb_process(struct wiphy_info_data *info,
3040 struct nlattr *nl_combi)
3041 {
3042 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB];
3043 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT];
3044 struct nlattr *nl_limit, *nl_mode;
3045 int err, rem_limit, rem_mode;
3046 int combination_has_p2p = 0, combination_has_mgd = 0;
3047 static struct nla_policy
3048 iface_combination_policy[NUM_NL80211_IFACE_COMB] = {
3049 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED },
3050 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 },
3051 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG },
3052 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 },
3053 [NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS] = { .type = NLA_U32 },
3054 },
3055 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = {
3056 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED },
3057 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 },
3058 };
3059
3060 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB,
3061 nl_combi, iface_combination_policy);
3062 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] ||
3063 !tb_comb[NL80211_IFACE_COMB_MAXNUM] ||
3064 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS])
3065 return 0; /* broken combination */
3066
3067 if (tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS])
3068 info->capa->flags |= WPA_DRIVER_FLAGS_RADAR;
3069
3070 nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS],
3071 rem_limit) {
3072 err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT,
3073 nl_limit, iface_limit_policy);
3074 if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES])
3075 return 0; /* broken combination */
3076
3077 nla_for_each_nested(nl_mode,
3078 tb_limit[NL80211_IFACE_LIMIT_TYPES],
3079 rem_mode) {
3080 int ift = nla_type(nl_mode);
3081 if (ift == NL80211_IFTYPE_P2P_GO ||
3082 ift == NL80211_IFTYPE_P2P_CLIENT)
3083 combination_has_p2p = 1;
3084 if (ift == NL80211_IFTYPE_STATION)
3085 combination_has_mgd = 1;
3086 }
3087 if (combination_has_p2p && combination_has_mgd)
3088 break;
3089 }
3090
3091 if (combination_has_p2p && combination_has_mgd) {
3092 info->p2p_concurrent = 1;
3093 info->num_multichan_concurrent =
3094 nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]);
3095 return 1;
3096 }
3097
3098 return 0;
3099 }
3100
3101
3102 static void wiphy_info_iface_comb(struct wiphy_info_data *info,
3103 struct nlattr *tb)
3104 {
3105 struct nlattr *nl_combi;
3106 int rem_combi;
3107
3108 if (tb == NULL)
3109 return;
3110
3111 nla_for_each_nested(nl_combi, tb, rem_combi) {
3112 if (wiphy_info_iface_comb_process(info, nl_combi) > 0)
3113 break;
3114 }
3115 }
3116
3117
3118 static void wiphy_info_supp_cmds(struct wiphy_info_data *info,
3119 struct nlattr *tb)
3120 {
3121 struct nlattr *nl_cmd;
3122 int i;
3123
3124 if (tb == NULL)
3125 return;
3126
3127 nla_for_each_nested(nl_cmd, tb, i) {
3128 switch (nla_get_u32(nl_cmd)) {
3129 case NL80211_CMD_AUTHENTICATE:
3130 info->auth_supported = 1;
3131 break;
3132 case NL80211_CMD_CONNECT:
3133 info->connect_supported = 1;
3134 break;
3135 case NL80211_CMD_START_SCHED_SCAN:
3136 info->capa->sched_scan_supported = 1;
3137 break;
3138 case NL80211_CMD_PROBE_CLIENT:
3139 info->poll_command_supported = 1;
3140 break;
3141 }
3142 }
3143 }
3144
3145
3146 static void wiphy_info_max_roc(struct wpa_driver_capa *capa,
3147 struct nlattr *tb)
3148 {
3149 if (tb)
3150 capa->max_remain_on_chan = nla_get_u32(tb);
3151 }
3152
3153
3154 static void wiphy_info_tdls(struct wpa_driver_capa *capa, struct nlattr *tdls,
3155 struct nlattr *ext_setup)
3156 {
3157 if (tdls == NULL)
3158 return;
3159
3160 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported");
3161 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT;
3162
3163 if (ext_setup) {
3164 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup");
3165 capa->flags |= WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP;
3166 }
3167 }
3168
3169
3170 static void wiphy_info_feature_flags(struct wiphy_info_data *info,
3171 struct nlattr *tb)
3172 {
3173 u32 flags;
3174 struct wpa_driver_capa *capa = info->capa;
3175
3176 if (tb == NULL)
3177 return;
3178
3179 flags = nla_get_u32(tb);
3180
3181 if (flags & NL80211_FEATURE_SK_TX_STATUS)
3182 info->data_tx_status = 1;
3183
3184 if (flags & NL80211_FEATURE_INACTIVITY_TIMER)
3185 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER;
3186
3187 if (flags & NL80211_FEATURE_SAE)
3188 capa->flags |= WPA_DRIVER_FLAGS_SAE;
3189
3190 if (flags & NL80211_FEATURE_NEED_OBSS_SCAN)
3191 capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN;
3192 }
3193
3194
3195 static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa,
3196 struct nlattr *tb)
3197 {
3198 u32 protocols;
3199
3200 if (tb == NULL)
3201 return;
3202
3203 protocols = nla_get_u32(tb);
3204 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP "
3205 "mode");
3206 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD;
3207 capa->probe_resp_offloads = probe_resp_offload_support(protocols);
3208 }
3209
3210
3211 static int wiphy_info_handler(struct nl_msg *msg, void *arg)
3212 {
3213 struct nlattr *tb[NL80211_ATTR_MAX + 1];
3214 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3215 struct wiphy_info_data *info = arg;
3216 struct wpa_driver_capa *capa = info->capa;
3217 struct wpa_driver_nl80211_data *drv = info->drv;
3218
3219 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3220 genlmsg_attrlen(gnlh, 0), NULL);
3221
3222 if (tb[NL80211_ATTR_WIPHY_NAME])
3223 os_strlcpy(drv->phyname,
3224 nla_get_string(tb[NL80211_ATTR_WIPHY_NAME]),
3225 sizeof(drv->phyname));
3226 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS])
3227 capa->max_scan_ssids =
3228 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]);
3229
3230 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS])
3231 capa->max_sched_scan_ssids =
3232 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]);
3233
3234 if (tb[NL80211_ATTR_MAX_MATCH_SETS])
3235 capa->max_match_sets =
3236 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]);
3237
3238 if (tb[NL80211_ATTR_MAC_ACL_MAX])
3239 capa->max_acl_mac_addrs =
3240 nla_get_u8(tb[NL80211_ATTR_MAC_ACL_MAX]);
3241
3242 wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]);
3243 wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]);
3244 wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]);
3245
3246 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) {
3247 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based "
3248 "off-channel TX");
3249 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX;
3250 }
3251
3252 if (tb[NL80211_ATTR_ROAM_SUPPORT]) {
3253 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming");
3254 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION;
3255 }
3256
3257 wiphy_info_max_roc(capa,
3258 tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]);
3259
3260 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD])
3261 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD;
3262
3263 wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT],
3264 tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]);
3265
3266 if (tb[NL80211_ATTR_DEVICE_AP_SME])
3267 info->device_ap_sme = 1;
3268
3269 wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]);
3270 wiphy_info_probe_resp_offload(capa,
3271 tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]);
3272
3273 if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] &&
3274 drv->extended_capa == NULL) {
3275 drv->extended_capa =
3276 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA]));
3277 if (drv->extended_capa) {
3278 os_memcpy(drv->extended_capa,
3279 nla_data(tb[NL80211_ATTR_EXT_CAPA]),
3280 nla_len(tb[NL80211_ATTR_EXT_CAPA]));
3281 drv->extended_capa_len =
3282 nla_len(tb[NL80211_ATTR_EXT_CAPA]);
3283 }
3284 drv->extended_capa_mask =
3285 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA]));
3286 if (drv->extended_capa_mask) {
3287 os_memcpy(drv->extended_capa_mask,
3288 nla_data(tb[NL80211_ATTR_EXT_CAPA]),
3289 nla_len(tb[NL80211_ATTR_EXT_CAPA]));
3290 } else {
3291 os_free(drv->extended_capa);
3292 drv->extended_capa = NULL;
3293 drv->extended_capa_len = 0;
3294 }
3295 }
3296
3297 return NL_SKIP;
3298 }
3299
3300
3301 static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv,
3302 struct wiphy_info_data *info)
3303 {
3304 u32 feat;
3305 struct nl_msg *msg;
3306
3307 os_memset(info, 0, sizeof(*info));
3308 info->capa = &drv->capa;
3309 info->drv = drv;
3310
3311 msg = nlmsg_alloc();
3312 if (!msg)
3313 return -1;
3314
3315 feat = get_nl80211_protocol_features(drv);
3316 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)
3317 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY);
3318 else
3319 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY);
3320
3321 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP);
3322 if (nl80211_set_iface_id(msg, &drv->first_bss) < 0)
3323 goto nla_put_failure;
3324
3325 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info))
3326 return -1;
3327
3328 if (info->auth_supported)
3329 drv->capa.flags |= WPA_DRIVER_FLAGS_SME;
3330 else if (!info->connect_supported) {
3331 wpa_printf(MSG_INFO, "nl80211: Driver does not support "
3332 "authentication/association or connect commands");
3333 info->error = 1;
3334 }
3335
3336 if (info->p2p_go_supported && info->p2p_client_supported)
3337 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE;
3338 if (info->p2p_concurrent) {
3339 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
3340 "interface (driver advertised support)");
3341 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
3342 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
3343 }
3344 if (info->num_multichan_concurrent > 1) {
3345 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel "
3346 "concurrent (driver advertised support)");
3347 drv->capa.num_multichan_concurrent =
3348 info->num_multichan_concurrent;
3349 }
3350
3351 /* default to 5000 since early versions of mac80211 don't set it */
3352 if (!drv->capa.max_remain_on_chan)
3353 drv->capa.max_remain_on_chan = 5000;
3354
3355 return 0;
3356 nla_put_failure:
3357 nlmsg_free(msg);
3358 return -1;
3359 }
3360
3361
3362 static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
3363 {
3364 struct wiphy_info_data info;
3365 if (wpa_driver_nl80211_get_info(drv, &info))
3366 return -1;
3367
3368 if (info.error)
3369 return -1;
3370
3371 drv->has_capability = 1;
3372 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */
3373 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
3374 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
3375 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
3376 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
3377 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 |
3378 WPA_DRIVER_CAPA_ENC_WEP104 |
3379 WPA_DRIVER_CAPA_ENC_TKIP |
3380 WPA_DRIVER_CAPA_ENC_CCMP;
3381 drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
3382 WPA_DRIVER_AUTH_SHARED |
3383 WPA_DRIVER_AUTH_LEAP;
3384
3385 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES;
3386 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE;
3387 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
3388
3389 if (!info.device_ap_sme) {
3390 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS;
3391
3392 /*
3393 * No AP SME is currently assumed to also indicate no AP MLME
3394 * in the driver/firmware.
3395 */
3396 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME;
3397 }
3398
3399 drv->device_ap_sme = info.device_ap_sme;
3400 drv->poll_command_supported = info.poll_command_supported;
3401 drv->data_tx_status = info.data_tx_status;
3402
3403 /*
3404 * If poll command and tx status are supported, mac80211 is new enough
3405 * to have everything we need to not need monitor interfaces.
3406 */
3407 drv->use_monitor = !info.poll_command_supported || !info.data_tx_status;
3408
3409 if (drv->device_ap_sme && drv->use_monitor) {
3410 /*
3411 * Non-mac80211 drivers may not support monitor interface.
3412 * Make sure we do not get stuck with incorrect capability here
3413 * by explicitly testing this.
3414 */
3415 if (!info.monitor_supported) {
3416 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor "
3417 "with device_ap_sme since no monitor mode "
3418 "support detected");
3419 drv->use_monitor = 0;
3420 }
3421 }
3422
3423 /*
3424 * If we aren't going to use monitor interfaces, but the
3425 * driver doesn't support data TX status, we won't get TX
3426 * status for EAPOL frames.
3427 */
3428 if (!drv->use_monitor && !info.data_tx_status)
3429 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
3430
3431 return 0;
3432 }
3433
3434
3435 #ifdef ANDROID
3436 static int android_genl_ctrl_resolve(struct nl_handle *handle,
3437 const char *name)
3438 {
3439 /*
3440 * Android ICS has very minimal genl_ctrl_resolve() implementation, so
3441 * need to work around that.
3442 */
3443 struct nl_cache *cache = NULL;
3444 struct genl_family *nl80211 = NULL;
3445 int id = -1;
3446
3447 if (genl_ctrl_alloc_cache(handle, &cache) < 0) {
3448 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
3449 "netlink cache");
3450 goto fail;
3451 }
3452
3453 nl80211 = genl_ctrl_search_by_name(cache, name);
3454 if (nl80211 == NULL)
3455 goto fail;
3456
3457 id = genl_family_get_id(nl80211);
3458
3459 fail:
3460 if (nl80211)
3461 genl_family_put(nl80211);
3462 if (cache)
3463 nl_cache_free(cache);
3464
3465 return id;
3466 }
3467 #define genl_ctrl_resolve android_genl_ctrl_resolve
3468 #endif /* ANDROID */
3469
3470
3471 static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global)
3472 {
3473 int ret;
3474
3475 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
3476 if (global->nl_cb == NULL) {
3477 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
3478 "callbacks");
3479 return -1;
3480 }
3481
3482 global->nl = nl_create_handle(global->nl_cb, "nl");
3483 if (global->nl == NULL)
3484 goto err;
3485
3486 global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211");
3487 if (global->nl80211_id < 0) {
3488 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not "
3489 "found");
3490 goto err;
3491 }
3492
3493 global->nl_event = nl_create_handle(global->nl_cb, "event");
3494 if (global->nl_event == NULL)
3495 goto err;
3496
3497 ret = nl_get_multicast_id(global, "nl80211", "scan");
3498 if (ret >= 0)
3499 ret = nl_socket_add_membership(global->nl_event, ret);
3500 if (ret < 0) {
3501 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
3502 "membership for scan events: %d (%s)",
3503 ret, strerror(-ret));
3504 goto err;
3505 }
3506
3507 ret = nl_get_multicast_id(global, "nl80211", "mlme");
3508 if (ret >= 0)
3509 ret = nl_socket_add_membership(global->nl_event, ret);
3510 if (ret < 0) {
3511 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
3512 "membership for mlme events: %d (%s)",
3513 ret, strerror(-ret));
3514 goto err;
3515 }
3516
3517 ret = nl_get_multicast_id(global, "nl80211", "regulatory");
3518 if (ret >= 0)
3519 ret = nl_socket_add_membership(global->nl_event, ret);
3520 if (ret < 0) {
3521 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast "
3522 "membership for regulatory events: %d (%s)",
3523 ret, strerror(-ret));
3524 /* Continue without regulatory events */
3525 }
3526
3527 nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
3528 no_seq_check, NULL);
3529 nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
3530 process_global_event, global);
3531
3532 nl80211_register_eloop_read(&global->nl_event,
3533 wpa_driver_nl80211_event_receive,
3534 global->nl_cb);
3535
3536 return 0;
3537
3538 err:
3539 nl_destroy_handles(&global->nl_event);
3540 nl_destroy_handles(&global->nl);
3541 nl_cb_put(global->nl_cb);
3542 global->nl_cb = NULL;
3543 return -1;
3544 }
3545
3546
3547 static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv)
3548 {
3549 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
3550 if (!drv->nl_cb) {
3551 wpa_printf(MSG_ERROR, "nl80211: Failed to alloc cb struct");
3552 return -1;
3553 }
3554
3555 nl_cb_set(drv->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
3556 no_seq_check, NULL);
3557 nl_cb_set(drv->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
3558 process_drv_event, drv);
3559
3560 return 0;
3561 }
3562
3563
3564 static void wpa_driver_nl80211_rfkill_blocked(void *ctx)
3565 {
3566 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked");
3567 /*
3568 * This may be for any interface; use ifdown event to disable
3569 * interface.
3570 */
3571 }
3572
3573
3574 static void wpa_driver_nl80211_rfkill_unblocked(void *ctx)
3575 {
3576 struct wpa_driver_nl80211_data *drv = ctx;
3577 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked");
3578 if (i802_set_iface_flags(&drv->first_bss, 1)) {
3579 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP "
3580 "after rfkill unblock");
3581 return;
3582 }
3583 /* rtnetlink ifup handler will report interface as enabled */
3584 }
3585
3586
3587 static void wpa_driver_nl80211_handle_eapol_tx_status(int sock,
3588 void *eloop_ctx,
3589 void *handle)
3590 {
3591 struct wpa_driver_nl80211_data *drv = eloop_ctx;
3592 u8 data[2048];
3593 struct msghdr msg;
3594 struct iovec entry;
3595 u8 control[512];
3596 struct cmsghdr *cmsg;
3597 int res, found_ee = 0, found_wifi = 0, acked = 0;
3598 union wpa_event_data event;
3599
3600 memset(&msg, 0, sizeof(msg));
3601 msg.msg_iov = &entry;
3602 msg.msg_iovlen = 1;
3603 entry.iov_base = data;
3604 entry.iov_len = sizeof(data);
3605 msg.msg_control = &control;
3606 msg.msg_controllen = sizeof(control);
3607
3608 res = recvmsg(sock, &msg, MSG_ERRQUEUE);
3609 /* if error or not fitting 802.3 header, return */
3610 if (res < 14)
3611 return;
3612
3613 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg))
3614 {
3615 if (cmsg->cmsg_level == SOL_SOCKET &&
3616 cmsg->cmsg_type == SCM_WIFI_STATUS) {
3617 int *ack;
3618
3619 found_wifi = 1;
3620 ack = (void *)CMSG_DATA(cmsg);
3621 acked = *ack;
3622 }
3623
3624 if (cmsg->cmsg_level == SOL_PACKET &&
3625 cmsg->cmsg_type == PACKET_TX_TIMESTAMP) {
3626 struct sock_extended_err *err =
3627 (struct sock_extended_err *)CMSG_DATA(cmsg);
3628
3629 if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS)
3630 found_ee = 1;
3631 }
3632 }
3633
3634 if (!found_ee || !found_wifi)
3635 return;
3636
3637 memset(&event, 0, sizeof(event));
3638 event.eapol_tx_status.dst = data;
3639 event.eapol_tx_status.data = data + 14;
3640 event.eapol_tx_status.data_len = res - 14;
3641 event.eapol_tx_status.ack = acked;
3642 wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event);
3643 }
3644
3645
3646 static int nl80211_init_bss(struct i802_bss *bss)
3647 {
3648 bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
3649 if (!bss->nl_cb)
3650 return -1;
3651
3652 nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
3653 no_seq_check, NULL);
3654 nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
3655 process_bss_event, bss);
3656
3657 return 0;
3658 }
3659
3660
3661 static void nl80211_destroy_bss(struct i802_bss *bss)
3662 {
3663 nl_cb_put(bss->nl_cb);
3664 bss->nl_cb = NULL;
3665 }
3666
3667
3668 /**
3669 * wpa_driver_nl80211_init - Initialize nl80211 driver interface
3670 * @ctx: context to be used when calling wpa_supplicant functions,
3671 * e.g., wpa_supplicant_event()
3672 * @ifname: interface name, e.g., wlan0
3673 * @global_priv: private driver global data from global_init()
3674 * Returns: Pointer to private data, %NULL on failure
3675 */
3676 static void * wpa_driver_nl80211_init(void *ctx, const char *ifname,
3677 void *global_priv)
3678 {
3679 struct wpa_driver_nl80211_data *drv;
3680 struct rfkill_config *rcfg;
3681 struct i802_bss *bss;
3682
3683 if (global_priv == NULL)
3684 return NULL;
3685 drv = os_zalloc(sizeof(*drv));
3686 if (drv == NULL)
3687 return NULL;
3688 drv->global = global_priv;
3689 drv->ctx = ctx;
3690 bss = &drv->first_bss;
3691 bss->drv = drv;
3692 bss->ctx = ctx;
3693
3694 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname));
3695 drv->monitor_ifidx = -1;
3696 drv->monitor_sock = -1;
3697 drv->eapol_tx_sock = -1;
3698 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
3699
3700 if (wpa_driver_nl80211_init_nl(drv)) {
3701 os_free(drv);
3702 return NULL;
3703 }
3704
3705 if (nl80211_init_bss(bss))
3706 goto failed;
3707
3708 rcfg = os_zalloc(sizeof(*rcfg));
3709 if (rcfg == NULL)
3710 goto failed;
3711 rcfg->ctx = drv;
3712 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname));
3713 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked;
3714 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked;
3715 drv->rfkill = rfkill_init(rcfg);
3716 if (drv->rfkill == NULL) {
3717 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available");
3718 os_free(rcfg);
3719 }
3720
3721 if (wpa_driver_nl80211_finish_drv_init(drv))
3722 goto failed;
3723
3724 drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0);
3725 if (drv->eapol_tx_sock < 0)
3726 goto failed;
3727
3728 if (drv->data_tx_status) {
3729 int enabled = 1;
3730
3731 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS,
3732 &enabled, sizeof(enabled)) < 0) {
3733 wpa_printf(MSG_DEBUG,
3734 "nl80211: wifi status sockopt failed\n");
3735 drv->data_tx_status = 0;
3736 if (!drv->use_monitor)
3737 drv->capa.flags &=
3738 ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
3739 } else {
3740 eloop_register_read_sock(drv->eapol_tx_sock,
3741 wpa_driver_nl80211_handle_eapol_tx_status,
3742 drv, NULL);
3743 }
3744 }
3745
3746 if (drv->global) {
3747 dl_list_add(&drv->global->interfaces, &drv->list);
3748 drv->in_interface_list = 1;
3749 }
3750
3751 return bss;
3752
3753 failed:
3754 wpa_driver_nl80211_deinit(bss);
3755 return NULL;
3756 }
3757
3758
3759 static int nl80211_register_frame(struct i802_bss *bss,
3760 struct nl_handle *nl_handle,
3761 u16 type, const u8 *match, size_t match_len)
3762 {
3763 struct wpa_driver_nl80211_data *drv = bss->drv;
3764 struct nl_msg *msg;
3765 int ret = -1;
3766
3767 msg = nlmsg_alloc();
3768 if (!msg)
3769 return -1;
3770
3771 wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x nl_handle=%p",
3772 type, nl_handle);
3773 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match",
3774 match, match_len);
3775
3776 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION);
3777
3778 if (nl80211_set_iface_id(msg, bss) < 0)
3779 goto nla_put_failure;
3780
3781 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type);
3782 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match);
3783
3784 ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL);
3785 msg = NULL;
3786 if (ret) {
3787 wpa_printf(MSG_DEBUG, "nl80211: Register frame command "
3788 "failed (type=%u): ret=%d (%s)",
3789 type, ret, strerror(-ret));
3790 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match",
3791 match, match_len);
3792 goto nla_put_failure;
3793 }
3794 ret = 0;
3795 nla_put_failure:
3796 nlmsg_free(msg);
3797 return ret;
3798 }
3799
3800
3801 static int nl80211_alloc_mgmt_handle(struct i802_bss *bss)
3802 {
3803 struct wpa_driver_nl80211_data *drv = bss->drv;
3804
3805 if (bss->nl_mgmt) {
3806 wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting "
3807 "already on! (nl_mgmt=%p)", bss->nl_mgmt);
3808 return -1;
3809 }
3810
3811 bss->nl_mgmt = nl_create_handle(drv->nl_cb, "mgmt");
3812 if (bss->nl_mgmt == NULL)
3813 return -1;
3814
3815 return 0;
3816 }
3817
3818
3819 static void nl80211_mgmt_handle_register_eloop(struct i802_bss *bss)
3820 {
3821 nl80211_register_eloop_read(&bss->nl_mgmt,
3822 wpa_driver_nl80211_event_receive,
3823 bss->nl_cb);
3824 }
3825
3826
3827 static int nl80211_register_action_frame(struct i802_bss *bss,
3828 const u8 *match, size_t match_len)
3829 {
3830 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4);
3831 return nl80211_register_frame(bss, bss->nl_mgmt,
3832 type, match, match_len);
3833 }
3834
3835
3836 static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss)
3837 {
3838 struct wpa_driver_nl80211_data *drv = bss->drv;
3839
3840 if (nl80211_alloc_mgmt_handle(bss))
3841 return -1;
3842 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP "
3843 "handle %p", bss->nl_mgmt);
3844
3845 if (drv->nlmode == NL80211_IFTYPE_ADHOC) {
3846 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_AUTH << 4);
3847
3848 /* register for any AUTH message */
3849 nl80211_register_frame(bss, bss->nl_mgmt, type, NULL, 0);
3850 }
3851
3852 #ifdef CONFIG_INTERWORKING
3853 /* QoS Map Configure */
3854 if (nl80211_register_action_frame(bss, (u8 *) "\x01\x04", 2) < 0)
3855 return -1;
3856 #endif /* CONFIG_INTERWORKING */
3857 #if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING)
3858 /* GAS Initial Request */
3859 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0)
3860 return -1;
3861 /* GAS Initial Response */
3862 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0)
3863 return -1;
3864 /* GAS Comeback Request */
3865 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0)
3866 return -1;
3867 /* GAS Comeback Response */
3868 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0)
3869 return -1;
3870 #endif /* CONFIG_P2P || CONFIG_INTERWORKING */
3871 #ifdef CONFIG_P2P
3872 /* P2P Public Action */
3873 if (nl80211_register_action_frame(bss,
3874 (u8 *) "\x04\x09\x50\x6f\x9a\x09",
3875 6) < 0)
3876 return -1;
3877 /* P2P Action */
3878 if (nl80211_register_action_frame(bss,
3879 (u8 *) "\x7f\x50\x6f\x9a\x09",
3880 5) < 0)
3881 return -1;
3882 #endif /* CONFIG_P2P */
3883 #ifdef CONFIG_IEEE80211W
3884 /* SA Query Response */
3885 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0)
3886 return -1;
3887 #endif /* CONFIG_IEEE80211W */
3888 #ifdef CONFIG_TDLS
3889 if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) {
3890 /* TDLS Discovery Response */
3891 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) <
3892 0)
3893 return -1;
3894 }
3895 #endif /* CONFIG_TDLS */
3896
3897 /* FT Action frames */
3898 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0)
3899 return -1;
3900 else
3901 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT |
3902 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK;
3903
3904 /* WNM - BSS Transition Management Request */
3905 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0)
3906 return -1;
3907 /* WNM-Sleep Mode Response */
3908 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x11", 2) < 0)
3909 return -1;
3910
3911 nl80211_mgmt_handle_register_eloop(bss);
3912
3913 return 0;
3914 }
3915
3916
3917 static int nl80211_register_spurious_class3(struct i802_bss *bss)
3918 {
3919 struct wpa_driver_nl80211_data *drv = bss->drv;
3920 struct nl_msg *msg;
3921 int ret = -1;
3922
3923 msg = nlmsg_alloc();
3924 if (!msg)
3925 return -1;
3926
3927 nl80211_cmd(drv, msg, 0, NL80211_CMD_UNEXPECTED_FRAME);
3928
3929 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
3930
3931 ret = send_and_recv(drv->global, bss->nl_mgmt, msg, NULL, NULL);
3932 msg = NULL;
3933 if (ret) {
3934 wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 "
3935 "failed: ret=%d (%s)",
3936 ret, strerror(-ret));
3937 goto nla_put_failure;
3938 }
3939 ret = 0;
3940 nla_put_failure:
3941 nlmsg_free(msg);
3942 return ret;
3943 }
3944
3945
3946 static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss)
3947 {
3948 static const int stypes[] = {
3949 WLAN_FC_STYPE_AUTH,
3950 WLAN_FC_STYPE_ASSOC_REQ,
3951 WLAN_FC_STYPE_REASSOC_REQ,
3952 WLAN_FC_STYPE_DISASSOC,
3953 WLAN_FC_STYPE_DEAUTH,
3954 WLAN_FC_STYPE_ACTION,
3955 WLAN_FC_STYPE_PROBE_REQ,
3956 /* Beacon doesn't work as mac80211 doesn't currently allow
3957 * it, but it wouldn't really be the right thing anyway as
3958 * it isn't per interface ... maybe just dump the scan
3959 * results periodically for OLBC?
3960 */
3961 // WLAN_FC_STYPE_BEACON,
3962 };
3963 unsigned int i;
3964
3965 if (nl80211_alloc_mgmt_handle(bss))
3966 return -1;
3967 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP "
3968 "handle %p", bss->nl_mgmt);
3969
3970 for (i = 0; i < ARRAY_SIZE(stypes); i++) {
3971 if (nl80211_register_frame(bss, bss->nl_mgmt,
3972 (WLAN_FC_TYPE_MGMT << 2) |
3973 (stypes[i] << 4),
3974 NULL, 0) < 0) {
3975 goto out_err;
3976 }
3977 }
3978
3979 if (nl80211_register_spurious_class3(bss))
3980 goto out_err;
3981
3982 if (nl80211_get_wiphy_data_ap(bss) == NULL)
3983 goto out_err;
3984
3985 nl80211_mgmt_handle_register_eloop(bss);
3986 return 0;
3987
3988 out_err:
3989 nl_destroy_handles(&bss->nl_mgmt);
3990 return -1;
3991 }
3992
3993
3994 static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss)
3995 {
3996 if (nl80211_alloc_mgmt_handle(bss))
3997 return -1;
3998 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP "
3999 "handle %p (device SME)", bss->nl_mgmt);
4000
4001 if (nl80211_register_frame(bss, bss->nl_mgmt,
4002 (WLAN_FC_TYPE_MGMT << 2) |
4003 (WLAN_FC_STYPE_ACTION << 4),
4004 NULL, 0) < 0)
4005 goto out_err;
4006
4007 nl80211_mgmt_handle_register_eloop(bss);
4008 return 0;
4009
4010 out_err:
4011 nl_destroy_handles(&bss->nl_mgmt);
4012 return -1;
4013 }
4014
4015
4016 static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason)
4017 {
4018 if (bss->nl_mgmt == NULL)
4019 return;
4020 wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p "
4021 "(%s)", bss->nl_mgmt, reason);
4022 nl80211_destroy_eloop_handle(&bss->nl_mgmt);
4023
4024 nl80211_put_wiphy_data_ap(bss);
4025 }
4026
4027
4028 static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx)
4029 {
4030 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL);
4031 }
4032
4033
4034 static void nl80211_del_p2pdev(struct i802_bss *bss)
4035 {
4036 struct wpa_driver_nl80211_data *drv = bss->drv;
4037 struct nl_msg *msg;
4038 int ret;
4039
4040 msg = nlmsg_alloc();
4041 if (!msg)
4042 return;
4043
4044 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE);
4045 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id);
4046
4047 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4048 msg = NULL;
4049
4050 wpa_printf(MSG_DEBUG, "nl80211: Delete P2P Device %s (0x%llx): %s",
4051 bss->ifname, (long long unsigned int) bss->wdev_id,
4052 strerror(-ret));
4053
4054 nla_put_failure:
4055 nlmsg_free(msg);
4056 }
4057
4058
4059 static int nl80211_set_p2pdev(struct i802_bss *bss, int start)
4060 {
4061 struct wpa_driver_nl80211_data *drv = bss->drv;
4062 struct nl_msg *msg;
4063 int ret = -1;
4064
4065 msg = nlmsg_alloc();
4066 if (!msg)
4067 return -1;
4068
4069 if (start)
4070 nl80211_cmd(drv, msg, 0, NL80211_CMD_START_P2P_DEVICE);
4071 else
4072 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_P2P_DEVICE);
4073
4074 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id);
4075
4076 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4077 msg = NULL;
4078
4079 wpa_printf(MSG_DEBUG, "nl80211: %s P2P Device %s (0x%llx): %s",
4080 start ? "Start" : "Stop",
4081 bss->ifname, (long long unsigned int) bss->wdev_id,
4082 strerror(-ret));
4083
4084 nla_put_failure:
4085 nlmsg_free(msg);
4086 return ret;
4087 }
4088
4089
4090 static int i802_set_iface_flags(struct i802_bss *bss, int up)
4091 {
4092 enum nl80211_iftype nlmode;
4093
4094 nlmode = nl80211_get_ifmode(bss);
4095 if (nlmode != NL80211_IFTYPE_P2P_DEVICE) {
4096 return linux_set_iface_flags(bss->drv->global->ioctl_sock,
4097 bss->ifname, up);
4098 }
4099
4100 /* P2P Device has start/stop which is equivalent */
4101 return nl80211_set_p2pdev(bss, up);
4102 }
4103
4104
4105 static int
4106 wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv)
4107 {
4108 #ifndef HOSTAPD
4109 enum nl80211_iftype nlmode = NL80211_IFTYPE_STATION;
4110 #endif /* HOSTAPD */
4111 struct i802_bss *bss = &drv->first_bss;
4112 int send_rfkill_event = 0;
4113
4114 drv->ifindex = if_nametoindex(bss->ifname);
4115 bss->ifindex = drv->ifindex;
4116 bss->wdev_id = drv->global->if_add_wdevid;
4117 bss->wdev_id_set = drv->global->if_add_wdevid_set;
4118
4119 bss->if_dynamic = drv->ifindex == drv->global->if_add_ifindex;
4120 bss->if_dynamic = bss->if_dynamic || drv->global->if_add_wdevid_set;
4121 drv->global->if_add_wdevid_set = 0;
4122
4123 if (wpa_driver_nl80211_capa(drv))
4124 return -1;
4125
4126 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s",
4127 bss->ifname, drv->phyname);
4128
4129 #ifndef HOSTAPD
4130 if (bss->if_dynamic)
4131 nlmode = nl80211_get_ifmode(bss);
4132
4133 /*
4134 * Make sure the interface starts up in station mode unless this is a
4135 * dynamically added interface (e.g., P2P) that was already configured
4136 * with proper iftype.
4137 */
4138 if (wpa_driver_nl80211_set_mode(bss, nlmode) < 0) {
4139 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver to use managed mode");
4140 return -1;
4141 }
4142 drv->nlmode = nlmode;
4143
4144 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) {
4145 int ret = nl80211_set_p2pdev(bss, 1);
4146 if (ret < 0)
4147 wpa_printf(MSG_ERROR, "nl80211: Could not start P2P device");
4148 nl80211_get_macaddr(bss);
4149 return ret;
4150 }
4151
4152 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) {
4153 if (rfkill_is_blocked(drv->rfkill)) {
4154 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable "
4155 "interface '%s' due to rfkill",
4156 bss->ifname);
4157 drv->if_disabled = 1;
4158 send_rfkill_event = 1;
4159 } else {
4160 wpa_printf(MSG_ERROR, "nl80211: Could not set "
4161 "interface '%s' UP", bss->ifname);
4162 return -1;
4163 }
4164 }
4165
4166 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex,
4167 1, IF_OPER_DORMANT);
4168 #endif /* HOSTAPD */
4169
4170 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
4171 bss->addr))
4172 return -1;
4173
4174 if (send_rfkill_event) {
4175 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill,
4176 drv, drv->ctx);
4177 }
4178
4179 return 0;
4180 }
4181
4182
4183 static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv)
4184 {
4185 struct nl_msg *msg;
4186
4187 msg = nlmsg_alloc();
4188 if (!msg)
4189 return -ENOMEM;
4190
4191 wpa_printf(MSG_DEBUG, "nl80211: Remove beacon (ifindex=%d)",
4192 drv->ifindex);
4193 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON);
4194 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4195
4196 return send_and_recv_msgs(drv, msg, NULL, NULL);
4197 nla_put_failure:
4198 nlmsg_free(msg);
4199 return -ENOBUFS;
4200 }
4201
4202
4203 /**
4204 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface
4205 * @bss: Pointer to private nl80211 data from wpa_driver_nl80211_init()
4206 *
4207 * Shut down driver interface and processing of driver events. Free
4208 * private data buffer if one was allocated in wpa_driver_nl80211_init().
4209 */
4210 static void wpa_driver_nl80211_deinit(struct i802_bss *bss)
4211 {
4212 struct wpa_driver_nl80211_data *drv = bss->drv;
4213
4214 bss->in_deinit = 1;
4215 if (drv->data_tx_status)
4216 eloop_unregister_read_sock(drv->eapol_tx_sock);
4217 if (drv->eapol_tx_sock >= 0)
4218 close(drv->eapol_tx_sock);
4219
4220 if (bss->nl_preq)
4221 wpa_driver_nl80211_probe_req_report(bss, 0);
4222 if (bss->added_if_into_bridge) {
4223 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname,
4224 bss->ifname) < 0)
4225 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
4226 "interface %s from bridge %s: %s",
4227 bss->ifname, bss->brname, strerror(errno));
4228 }
4229 if (bss->added_bridge) {
4230 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0)
4231 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
4232 "bridge %s: %s",
4233 bss->brname, strerror(errno));
4234 }
4235
4236 nl80211_remove_monitor_interface(drv);
4237
4238 if (is_ap_interface(drv->nlmode))
4239 wpa_driver_nl80211_del_beacon(drv);
4240
4241 #ifdef HOSTAPD
4242 if (drv->last_freq_ht) {
4243 /* Clear HT flags from the driver */
4244 struct hostapd_freq_params freq;
4245 os_memset(&freq, 0, sizeof(freq));
4246 freq.freq = drv->last_freq;
4247 wpa_driver_nl80211_set_freq(bss, &freq);
4248 }
4249
4250 if (drv->eapol_sock >= 0) {
4251 eloop_unregister_read_sock(drv->eapol_sock);
4252 close(drv->eapol_sock);
4253 }
4254
4255 if (drv->if_indices != drv->default_if_indices)
4256 os_free(drv->if_indices);
4257 #endif /* HOSTAPD */
4258
4259 if (drv->disabled_11b_rates)
4260 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
4261
4262 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0,
4263 IF_OPER_UP);
4264 rfkill_deinit(drv->rfkill);
4265
4266 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
4267
4268 (void) i802_set_iface_flags(bss, 0);
4269 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) {
4270 wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION);
4271 nl80211_mgmt_unsubscribe(bss, "deinit");
4272 } else {
4273 nl80211_mgmt_unsubscribe(bss, "deinit");
4274 nl80211_del_p2pdev(bss);
4275 }
4276 nl_cb_put(drv->nl_cb);
4277
4278 nl80211_destroy_bss(&drv->first_bss);
4279
4280 os_free(drv->filter_ssids);
4281
4282 os_free(drv->auth_ie);
4283
4284 if (drv->in_interface_list)
4285 dl_list_del(&drv->list);
4286
4287 os_free(drv->extended_capa);
4288 os_free(drv->extended_capa_mask);
4289 os_free(drv);
4290 }
4291
4292
4293 /**
4294 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion
4295 * @eloop_ctx: Driver private data
4296 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init()
4297 *
4298 * This function can be used as registered timeout when starting a scan to
4299 * generate a scan completed event if the driver does not report this.
4300 */
4301 static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx)
4302 {
4303 struct wpa_driver_nl80211_data *drv = eloop_ctx;
4304 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) {
4305 wpa_driver_nl80211_set_mode(&drv->first_bss,
4306 drv->ap_scan_as_station);
4307 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
4308 }
4309 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results");
4310 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL);
4311 }
4312
4313
4314 static struct nl_msg *
4315 nl80211_scan_common(struct wpa_driver_nl80211_data *drv, u8 cmd,
4316 struct wpa_driver_scan_params *params, u64 *wdev_id)
4317 {
4318 struct nl_msg *msg;
4319 size_t i;
4320
4321 msg = nlmsg_alloc();
4322 if (!msg)
4323 return NULL;
4324
4325 nl80211_cmd(drv, msg, 0, cmd);
4326
4327 if (!wdev_id)
4328 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4329 else
4330 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, *wdev_id);
4331
4332 if (params->num_ssids) {
4333 struct nlattr *ssids;
4334
4335 ssids = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
4336 if (ssids == NULL)
4337 goto fail;
4338 for (i = 0; i < params->num_ssids; i++) {
4339 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID",
4340 params->ssids[i].ssid,
4341 params->ssids[i].ssid_len);
4342 if (nla_put(msg, i + 1, params->ssids[i].ssid_len,
4343 params->ssids[i].ssid) < 0)
4344 goto fail;
4345 }
4346 nla_nest_end(msg, ssids);
4347 }
4348
4349 if (params->extra_ies) {
4350 wpa_hexdump(MSG_MSGDUMP, "nl80211: Scan extra IEs",
4351 params->extra_ies, params->extra_ies_len);
4352 if (nla_put(msg, NL80211_ATTR_IE, params->extra_ies_len,
4353 params->extra_ies) < 0)
4354 goto fail;
4355 }
4356
4357 if (params->freqs) {
4358 struct nlattr *freqs;
4359 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
4360 if (freqs == NULL)
4361 goto fail;
4362 for (i = 0; params->freqs[i]; i++) {
4363 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u "
4364 "MHz", params->freqs[i]);
4365 if (nla_put_u32(msg, i + 1, params->freqs[i]) < 0)
4366 goto fail;
4367 }
4368 nla_nest_end(msg, freqs);
4369 }
4370
4371 os_free(drv->filter_ssids);
4372 drv->filter_ssids = params->filter_ssids;
4373 params->filter_ssids = NULL;
4374 drv->num_filter_ssids = params->num_filter_ssids;
4375
4376 return msg;
4377
4378 fail:
4379 nla_put_failure:
4380 nlmsg_free(msg);
4381 return NULL;
4382 }
4383
4384
4385 /**
4386 * wpa_driver_nl80211_scan - Request the driver to initiate scan
4387 * @bss: Pointer to private driver data from wpa_driver_nl80211_init()
4388 * @params: Scan parameters
4389 * Returns: 0 on success, -1 on failure
4390 */
4391 static int wpa_driver_nl80211_scan(struct i802_bss *bss,
4392 struct wpa_driver_scan_params *params)
4393 {
4394 struct wpa_driver_nl80211_data *drv = bss->drv;
4395 int ret = -1, timeout;
4396 struct nl_msg *msg = NULL;
4397
4398 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: scan request");
4399 drv->scan_for_auth = 0;
4400
4401 msg = nl80211_scan_common(drv, NL80211_CMD_TRIGGER_SCAN, params,
4402 bss->wdev_id_set ? &bss->wdev_id : NULL);
4403 if (!msg)
4404 return -1;
4405
4406 if (params->p2p_probe) {
4407 struct nlattr *rates;
4408
4409 wpa_printf(MSG_DEBUG, "nl80211: P2P probe - mask SuppRates");
4410
4411 rates = nla_nest_start(msg, NL80211_ATTR_SCAN_SUPP_RATES);
4412 if (rates == NULL)
4413 goto nla_put_failure;
4414
4415 /*
4416 * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates
4417 * by masking out everything else apart from the OFDM rates 6,
4418 * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz
4419 * rates are left enabled.
4420 */
4421 NLA_PUT(msg, NL80211_BAND_2GHZ, 8,
4422 "\x0c\x12\x18\x24\x30\x48\x60\x6c");
4423 nla_nest_end(msg, rates);
4424
4425 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE);
4426 }
4427
4428 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4429 msg = NULL;
4430 if (ret) {
4431 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d "
4432 "(%s)", ret, strerror(-ret));
4433 #ifdef HOSTAPD
4434 if (is_ap_interface(drv->nlmode)) {
4435 /*
4436 * mac80211 does not allow scan requests in AP mode, so
4437 * try to do this in station mode.
4438 */
4439 if (wpa_driver_nl80211_set_mode(
4440 bss, NL80211_IFTYPE_STATION))
4441 goto nla_put_failure;
4442
4443 if (wpa_driver_nl80211_scan(bss, params)) {
4444 wpa_driver_nl80211_set_mode(bss, drv->nlmode);
4445 goto nla_put_failure;
4446 }
4447
4448 /* Restore AP mode when processing scan results */
4449 drv->ap_scan_as_station = drv->nlmode;
4450 ret = 0;
4451 } else
4452 goto nla_put_failure;
4453 #else /* HOSTAPD */
4454 goto nla_put_failure;
4455 #endif /* HOSTAPD */
4456 }
4457
4458 drv->scan_state = SCAN_REQUESTED;
4459 /* Not all drivers generate "scan completed" wireless event, so try to
4460 * read results after a timeout. */
4461 timeout = 10;
4462 if (drv->scan_complete_events) {
4463 /*
4464 * The driver seems to deliver events to notify when scan is
4465 * complete, so use longer timeout to avoid race conditions
4466 * with scanning and following association request.
4467 */
4468 timeout = 30;
4469 }
4470 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d "
4471 "seconds", ret, timeout);
4472 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
4473 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout,
4474 drv, drv->ctx);
4475
4476 nla_put_failure:
4477 nlmsg_free(msg);
4478 return ret;
4479 }
4480
4481
4482 /**
4483 * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan
4484 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
4485 * @params: Scan parameters
4486 * @interval: Interval between scan cycles in milliseconds
4487 * Returns: 0 on success, -1 on failure or if not supported
4488 */
4489 static int wpa_driver_nl80211_sched_scan(void *priv,
4490 struct wpa_driver_scan_params *params,
4491 u32 interval)
4492 {
4493 struct i802_bss *bss = priv;
4494 struct wpa_driver_nl80211_data *drv = bss->drv;
4495 int ret = -1;
4496 struct nl_msg *msg;
4497 size_t i;
4498
4499 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: sched_scan request");
4500
4501 #ifdef ANDROID
4502 if (!drv->capa.sched_scan_supported)
4503 return android_pno_start(bss, params);
4504 #endif /* ANDROID */
4505
4506 msg = nl80211_scan_common(drv, NL80211_CMD_START_SCHED_SCAN, params,
4507 bss->wdev_id_set ? &bss->wdev_id : NULL);
4508 if (!msg)
4509 goto nla_put_failure;
4510
4511 NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval);
4512
4513 if ((drv->num_filter_ssids &&
4514 (int) drv->num_filter_ssids <= drv->capa.max_match_sets) ||
4515 params->filter_rssi) {
4516 struct nlattr *match_sets;
4517 match_sets = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
4518 if (match_sets == NULL)
4519 goto nla_put_failure;
4520
4521 for (i = 0; i < drv->num_filter_ssids; i++) {
4522 struct nlattr *match_set_ssid;
4523 wpa_hexdump_ascii(MSG_MSGDUMP,
4524 "nl80211: Sched scan filter SSID",
4525 drv->filter_ssids[i].ssid,
4526 drv->filter_ssids[i].ssid_len);
4527
4528 match_set_ssid = nla_nest_start(msg, i + 1);
4529 if (match_set_ssid == NULL)
4530 goto nla_put_failure;
4531 NLA_PUT(msg, NL80211_ATTR_SCHED_SCAN_MATCH_SSID,
4532 drv->filter_ssids[i].ssid_len,
4533 drv->filter_ssids[i].ssid);
4534
4535 nla_nest_end(msg, match_set_ssid);
4536 }
4537
4538 if (params->filter_rssi) {
4539 struct nlattr *match_set_rssi;
4540 match_set_rssi = nla_nest_start(msg, 0);
4541 if (match_set_rssi == NULL)
4542 goto nla_put_failure;
4543 NLA_PUT_U32(msg, NL80211_SCHED_SCAN_MATCH_ATTR_RSSI,
4544 params->filter_rssi);
4545 wpa_printf(MSG_MSGDUMP,
4546 "nl80211: Sched scan RSSI filter %d dBm",
4547 params->filter_rssi);
4548 nla_nest_end(msg, match_set_rssi);
4549 }
4550
4551 nla_nest_end(msg, match_sets);
4552 }
4553
4554 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4555
4556 /* TODO: if we get an error here, we should fall back to normal scan */
4557
4558 msg = NULL;
4559 if (ret) {
4560 wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: "
4561 "ret=%d (%s)", ret, strerror(-ret));
4562 goto nla_put_failure;
4563 }
4564
4565 wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - "
4566 "scan interval %d msec", ret, interval);
4567
4568 nla_put_failure:
4569 nlmsg_free(msg);
4570 return ret;
4571 }
4572
4573
4574 /**
4575 * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan
4576 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
4577 * Returns: 0 on success, -1 on failure or if not supported
4578 */
4579 static int wpa_driver_nl80211_stop_sched_scan(void *priv)
4580 {
4581 struct i802_bss *bss = priv;
4582 struct wpa_driver_nl80211_data *drv = bss->drv;
4583 int ret = 0;
4584 struct nl_msg *msg;
4585
4586 #ifdef ANDROID
4587 if (!drv->capa.sched_scan_supported)
4588 return android_pno_stop(bss);
4589 #endif /* ANDROID */
4590
4591 msg = nlmsg_alloc();
4592 if (!msg)
4593 return -1;
4594
4595 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN);
4596
4597 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4598
4599 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4600 msg = NULL;
4601 if (ret) {
4602 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: "
4603 "ret=%d (%s)", ret, strerror(-ret));
4604 goto nla_put_failure;
4605 }
4606
4607 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret);
4608
4609 nla_put_failure:
4610 nlmsg_free(msg);
4611 return ret;
4612 }
4613
4614
4615 static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie)
4616 {
4617 const u8 *end, *pos;
4618
4619 if (ies == NULL)
4620 return NULL;
4621
4622 pos = ies;
4623 end = ies + ies_len;
4624
4625 while (pos + 1 < end) {
4626 if (pos + 2 + pos[1] > end)
4627 break;
4628 if (pos[0] == ie)
4629 return pos;
4630 pos += 2 + pos[1];
4631 }
4632
4633 return NULL;
4634 }
4635
4636
4637 static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv,
4638 const u8 *ie, size_t ie_len)
4639 {
4640 const u8 *ssid;
4641 size_t i;
4642
4643 if (drv->filter_ssids == NULL)
4644 return 0;
4645
4646 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID);
4647 if (ssid == NULL)
4648 return 1;
4649
4650 for (i = 0; i < drv->num_filter_ssids; i++) {
4651 if (ssid[1] == drv->filter_ssids[i].ssid_len &&
4652 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) ==
4653 0)
4654 return 0;
4655 }
4656
4657 return 1;
4658 }
4659
4660
4661 static int bss_info_handler(struct nl_msg *msg, void *arg)
4662 {
4663 struct nlattr *tb[NL80211_ATTR_MAX + 1];
4664 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
4665 struct nlattr *bss[NL80211_BSS_MAX + 1];
4666 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
4667 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC },
4668 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 },
4669 [NL80211_BSS_TSF] = { .type = NLA_U64 },
4670 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 },
4671 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 },
4672 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC },
4673 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 },
4674 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 },
4675 [NL80211_BSS_STATUS] = { .type = NLA_U32 },
4676 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 },
4677 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC },
4678 };
4679 struct nl80211_bss_info_arg *_arg = arg;
4680 struct wpa_scan_results *res = _arg->res;
4681 struct wpa_scan_res **tmp;
4682 struct wpa_scan_res *r;
4683 const u8 *ie, *beacon_ie;
4684 size_t ie_len, beacon_ie_len;
4685 u8 *pos;
4686 size_t i;
4687
4688 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
4689 genlmsg_attrlen(gnlh, 0), NULL);
4690 if (!tb[NL80211_ATTR_BSS])
4691 return NL_SKIP;
4692 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS],
4693 bss_policy))
4694 return NL_SKIP;
4695 if (bss[NL80211_BSS_STATUS]) {
4696 enum nl80211_bss_status status;
4697 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
4698 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
4699 bss[NL80211_BSS_FREQUENCY]) {
4700 _arg->assoc_freq =
4701 nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
4702 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz",
4703 _arg->assoc_freq);
4704 }
4705 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
4706 bss[NL80211_BSS_BSSID]) {
4707 os_memcpy(_arg->assoc_bssid,
4708 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN);
4709 wpa_printf(MSG_DEBUG, "nl80211: Associated with "
4710 MACSTR, MAC2STR(_arg->assoc_bssid));
4711 }
4712 }
4713 if (!res)
4714 return NL_SKIP;
4715 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) {
4716 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
4717 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
4718 } else {
4719 ie = NULL;
4720 ie_len = 0;
4721 }
4722 if (bss[NL80211_BSS_BEACON_IES]) {
4723 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]);
4724 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]);
4725 } else {
4726 beacon_ie = NULL;
4727 beacon_ie_len = 0;
4728 }
4729
4730 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie,
4731 ie ? ie_len : beacon_ie_len))
4732 return NL_SKIP;
4733
4734 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len);
4735 if (r == NULL)
4736 return NL_SKIP;
4737 if (bss[NL80211_BSS_BSSID])
4738 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]),
4739 ETH_ALEN);
4740 if (bss[NL80211_BSS_FREQUENCY])
4741 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
4742 if (bss[NL80211_BSS_BEACON_INTERVAL])
4743 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]);
4744 if (bss[NL80211_BSS_CAPABILITY])
4745 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]);
4746 r->flags |= WPA_SCAN_NOISE_INVALID;
4747 if (bss[NL80211_BSS_SIGNAL_MBM]) {
4748 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]);
4749 r->level /= 100; /* mBm to dBm */
4750 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID;
4751 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) {
4752 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]);
4753 r->flags |= WPA_SCAN_QUAL_INVALID;
4754 } else
4755 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID;
4756 if (bss[NL80211_BSS_TSF])
4757 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]);
4758 if (bss[NL80211_BSS_SEEN_MS_AGO])
4759 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]);
4760 r->ie_len = ie_len;
4761 pos = (u8 *) (r + 1);
4762 if (ie) {
4763 os_memcpy(pos, ie, ie_len);
4764 pos += ie_len;
4765 }
4766 r->beacon_ie_len = beacon_ie_len;
4767 if (beacon_ie)
4768 os_memcpy(pos, beacon_ie, beacon_ie_len);
4769
4770 if (bss[NL80211_BSS_STATUS]) {
4771 enum nl80211_bss_status status;
4772 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
4773 switch (status) {
4774 case NL80211_BSS_STATUS_AUTHENTICATED:
4775 r->flags |= WPA_SCAN_AUTHENTICATED;
4776 break;
4777 case NL80211_BSS_STATUS_ASSOCIATED:
4778 r->flags |= WPA_SCAN_ASSOCIATED;
4779 break;
4780 default:
4781 break;
4782 }
4783 }
4784
4785 /*
4786 * cfg80211 maintains separate BSS table entries for APs if the same
4787 * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does
4788 * not use frequency as a separate key in the BSS table, so filter out
4789 * duplicated entries. Prefer associated BSS entry in such a case in
4790 * order to get the correct frequency into the BSS table.
4791 */
4792 for (i = 0; i < res->num; i++) {
4793 const u8 *s1, *s2;
4794 if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0)
4795 continue;
4796
4797 s1 = nl80211_get_ie((u8 *) (res->res[i] + 1),
4798 res->res[i]->ie_len, WLAN_EID_SSID);
4799 s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID);
4800 if (s1 == NULL || s2 == NULL || s1[1] != s2[1] ||
4801 os_memcmp(s1, s2, 2 + s1[1]) != 0)
4802 continue;
4803
4804 /* Same BSSID,SSID was already included in scan results */
4805 wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result "
4806 "for " MACSTR, MAC2STR(r->bssid));
4807
4808 if ((r->flags & WPA_SCAN_ASSOCIATED) &&
4809 !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) {
4810 os_free(res->res[i]);
4811 res->res[i] = r;
4812 } else
4813 os_free(r);
4814 return NL_SKIP;
4815 }
4816
4817 tmp = os_realloc_array(res->res, res->num + 1,
4818 sizeof(struct wpa_scan_res *));
4819 if (tmp == NULL) {
4820 os_free(r);
4821 return NL_SKIP;
4822 }
4823 tmp[res->num++] = r;
4824 res->res = tmp;
4825
4826 return NL_SKIP;
4827 }
4828
4829
4830 static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv,
4831 const u8 *addr)
4832 {
4833 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
4834 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state "
4835 "mismatch (" MACSTR ")", MAC2STR(addr));
4836 wpa_driver_nl80211_mlme(drv, addr,
4837 NL80211_CMD_DEAUTHENTICATE,
4838 WLAN_REASON_PREV_AUTH_NOT_VALID, 1);
4839 }
4840 }
4841
4842
4843 static void wpa_driver_nl80211_check_bss_status(
4844 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res)
4845 {
4846 size_t i;
4847
4848 for (i = 0; i < res->num; i++) {
4849 struct wpa_scan_res *r = res->res[i];
4850 if (r->flags & WPA_SCAN_AUTHENTICATED) {
4851 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
4852 "indicates BSS status with " MACSTR
4853 " as authenticated",
4854 MAC2STR(r->bssid));
4855 if (is_sta_interface(drv->nlmode) &&
4856 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 &&
4857 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) !=
4858 0) {
4859 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID"
4860 " in local state (auth=" MACSTR
4861 " assoc=" MACSTR ")",
4862 MAC2STR(drv->auth_bssid),
4863 MAC2STR(drv->bssid));
4864 clear_state_mismatch(drv, r->bssid);
4865 }
4866 }
4867
4868 if (r->flags & WPA_SCAN_ASSOCIATED) {
4869 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
4870 "indicate BSS status with " MACSTR
4871 " as associated",
4872 MAC2STR(r->bssid));
4873 if (is_sta_interface(drv->nlmode) &&
4874 !drv->associated) {
4875 wpa_printf(MSG_DEBUG, "nl80211: Local state "
4876 "(not associated) does not match "
4877 "with BSS state");
4878 clear_state_mismatch(drv, r->bssid);
4879 } else if (is_sta_interface(drv->nlmode) &&
4880 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) !=
4881 0) {
4882 wpa_printf(MSG_DEBUG, "nl80211: Local state "
4883 "(associated with " MACSTR ") does "
4884 "not match with BSS state",
4885 MAC2STR(drv->bssid));
4886 clear_state_mismatch(drv, r->bssid);
4887 clear_state_mismatch(drv, drv->bssid);
4888 }
4889 }
4890 }
4891 }
4892
4893
4894 static struct wpa_scan_results *
4895 nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv)
4896 {
4897 struct nl_msg *msg;
4898 struct wpa_scan_results *res;
4899 int ret;
4900 struct nl80211_bss_info_arg arg;
4901
4902 res = os_zalloc(sizeof(*res));
4903 if (res == NULL)
4904 return NULL;
4905 msg = nlmsg_alloc();
4906 if (!msg)
4907 goto nla_put_failure;
4908
4909 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
4910 if (nl80211_set_iface_id(msg, &drv->first_bss) < 0)
4911 goto nla_put_failure;
4912
4913 arg.drv = drv;
4914 arg.res = res;
4915 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
4916 msg = NULL;
4917 if (ret == 0) {
4918 wpa_printf(MSG_DEBUG, "nl80211: Received scan results (%lu "
4919 "BSSes)", (unsigned long) res->num);
4920 nl80211_get_noise_for_scan_results(drv, res);
4921 return res;
4922 }
4923 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
4924 "(%s)", ret, strerror(-ret));
4925 nla_put_failure:
4926 nlmsg_free(msg);
4927 wpa_scan_results_free(res);
4928 return NULL;
4929 }
4930
4931
4932 /**
4933 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results
4934 * @priv: Pointer to private wext data from wpa_driver_nl80211_init()
4935 * Returns: Scan results on success, -1 on failure
4936 */
4937 static struct wpa_scan_results *
4938 wpa_driver_nl80211_get_scan_results(void *priv)
4939 {
4940 struct i802_bss *bss = priv;
4941 struct wpa_driver_nl80211_data *drv = bss->drv;
4942 struct wpa_scan_results *res;
4943
4944 res = nl80211_get_scan_results(drv);
4945 if (res)
4946 wpa_driver_nl80211_check_bss_status(drv, res);
4947 return res;
4948 }
4949
4950
4951 static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv)
4952 {
4953 struct wpa_scan_results *res;
4954 size_t i;
4955
4956 res = nl80211_get_scan_results(drv);
4957 if (res == NULL) {
4958 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results");
4959 return;
4960 }
4961
4962 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump");
4963 for (i = 0; i < res->num; i++) {
4964 struct wpa_scan_res *r = res->res[i];
4965 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s",
4966 (int) i, (int) res->num, MAC2STR(r->bssid),
4967 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "",
4968 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : "");
4969 }
4970
4971 wpa_scan_results_free(res);
4972 }
4973
4974
4975 static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss,
4976 enum wpa_alg alg, const u8 *addr,
4977 int key_idx, int set_tx,
4978 const u8 *seq, size_t seq_len,
4979 const u8 *key, size_t key_len)
4980 {
4981 struct wpa_driver_nl80211_data *drv = bss->drv;
4982 int ifindex;
4983 struct nl_msg *msg;
4984 int ret;
4985 int tdls = 0;
4986
4987 /* Ignore for P2P Device */
4988 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE)
4989 return 0;
4990
4991 ifindex = if_nametoindex(ifname);
4992 wpa_printf(MSG_DEBUG, "%s: ifindex=%d (%s) alg=%d addr=%p key_idx=%d "
4993 "set_tx=%d seq_len=%lu key_len=%lu",
4994 __func__, ifindex, ifname, alg, addr, key_idx, set_tx,
4995 (unsigned long) seq_len, (unsigned long) key_len);
4996 #ifdef CONFIG_TDLS
4997 if (key_idx == -1) {
4998 key_idx = 0;
4999 tdls = 1;
5000 }
5001 #endif /* CONFIG_TDLS */
5002
5003 msg = nlmsg_alloc();
5004 if (!msg)
5005 return -ENOMEM;
5006
5007 if (alg == WPA_ALG_NONE) {
5008 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY);
5009 } else {
5010 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY);
5011 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key);
5012 switch (alg) {
5013 case WPA_ALG_WEP:
5014 if (key_len == 5)
5015 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
5016 WLAN_CIPHER_SUITE_WEP40);
5017 else
5018 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
5019 WLAN_CIPHER_SUITE_WEP104);
5020 break;
5021 case WPA_ALG_TKIP:
5022 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
5023 WLAN_CIPHER_SUITE_TKIP);
5024 break;
5025 case WPA_ALG_CCMP:
5026 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
5027 WLAN_CIPHER_SUITE_CCMP);
5028 break;
5029 case WPA_ALG_GCMP:
5030 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
5031 WLAN_CIPHER_SUITE_GCMP);
5032 break;
5033 case WPA_ALG_IGTK:
5034 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
5035 WLAN_CIPHER_SUITE_AES_CMAC);
5036 break;
5037 case WPA_ALG_SMS4:
5038 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
5039 WLAN_CIPHER_SUITE_SMS4);
5040 break;
5041 case WPA_ALG_KRK:
5042 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
5043 WLAN_CIPHER_SUITE_KRK);
5044 break;
5045 default:
5046 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
5047 "algorithm %d", __func__, alg);
5048 nlmsg_free(msg);
5049 return -1;
5050 }
5051 }
5052
5053 if (seq && seq_len)
5054 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq);
5055
5056 if (addr && !is_broadcast_ether_addr(addr)) {
5057 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr));
5058 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5059
5060 if (alg != WPA_ALG_WEP && key_idx && !set_tx) {
5061 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK");
5062 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE,
5063 NL80211_KEYTYPE_GROUP);
5064 }
5065 } else if (addr && is_broadcast_ether_addr(addr)) {
5066 struct nlattr *types;
5067
5068 wpa_printf(MSG_DEBUG, " broadcast key");
5069
5070 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES);
5071 if (!types)
5072 goto nla_put_failure;
5073 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
5074 nla_nest_end(msg, types);
5075 }
5076 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
5077 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
5078
5079 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5080 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE)
5081 ret = 0;
5082 if (ret)
5083 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)",
5084 ret, strerror(-ret));
5085
5086 /*
5087 * If we failed or don't need to set the default TX key (below),
5088 * we're done here.
5089 */
5090 if (ret || !set_tx || alg == WPA_ALG_NONE || tdls)
5091 return ret;
5092 if (is_ap_interface(drv->nlmode) && addr &&
5093 !is_broadcast_ether_addr(addr))
5094 return ret;
5095
5096 msg = nlmsg_alloc();
5097 if (!msg)
5098 return -ENOMEM;
5099
5100 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY);
5101 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
5102 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
5103 if (alg == WPA_ALG_IGTK)
5104 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT);
5105 else
5106 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
5107 if (addr && is_broadcast_ether_addr(addr)) {
5108 struct nlattr *types;
5109
5110 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES);
5111 if (!types)
5112 goto nla_put_failure;
5113 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
5114 nla_nest_end(msg, types);
5115 } else if (addr) {
5116 struct nlattr *types;
5117
5118 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES);
5119 if (!types)
5120 goto nla_put_failure;
5121 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_UNICAST);
5122 nla_nest_end(msg, types);
5123 }
5124
5125 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5126 if (ret == -ENOENT)
5127 ret = 0;
5128 if (ret)
5129 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; "
5130 "err=%d %s)", ret, strerror(-ret));
5131 return ret;
5132
5133 nla_put_failure:
5134 nlmsg_free(msg);
5135 return -ENOBUFS;
5136 }
5137
5138
5139 static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg,
5140 int key_idx, int defkey,
5141 const u8 *seq, size_t seq_len,
5142 const u8 *key, size_t key_len)
5143 {
5144 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY);
5145 if (!key_attr)
5146 return -1;
5147
5148 if (defkey && alg == WPA_ALG_IGTK)
5149 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT);
5150 else if (defkey)
5151 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
5152
5153 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx);
5154
5155 switch (alg) {
5156 case WPA_ALG_WEP:
5157 if (key_len == 5)
5158 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
5159 WLAN_CIPHER_SUITE_WEP40);
5160 else
5161 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
5162 WLAN_CIPHER_SUITE_WEP104);
5163 break;
5164 case WPA_ALG_TKIP:
5165 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP);
5166 break;
5167 case WPA_ALG_CCMP:
5168 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP);
5169 break;
5170 case WPA_ALG_GCMP:
5171 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_GCMP);
5172 break;
5173 case WPA_ALG_IGTK:
5174 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
5175 WLAN_CIPHER_SUITE_AES_CMAC);
5176 break;
5177 default:
5178 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
5179 "algorithm %d", __func__, alg);
5180 return -1;
5181 }
5182
5183 if (seq && seq_len)
5184 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq);
5185
5186 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key);
5187
5188 nla_nest_end(msg, key_attr);
5189
5190 return 0;
5191 nla_put_failure:
5192 return -1;
5193 }
5194
5195
5196 static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params,
5197 struct nl_msg *msg)
5198 {
5199 int i, privacy = 0;
5200 struct nlattr *nl_keys, *nl_key;
5201
5202 for (i = 0; i < 4; i++) {
5203 if (!params->wep_key[i])
5204 continue;
5205 privacy = 1;
5206 break;
5207 }
5208 if (params->wps == WPS_MODE_PRIVACY)
5209 privacy = 1;
5210 if (params->pairwise_suite &&
5211 params->pairwise_suite != WPA_CIPHER_NONE)
5212 privacy = 1;
5213
5214 if (!privacy)
5215 return 0;
5216
5217 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
5218
5219 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS);
5220 if (!nl_keys)
5221 goto nla_put_failure;
5222
5223 for (i = 0; i < 4; i++) {
5224 if (!params->wep_key[i])
5225 continue;
5226
5227 nl_key = nla_nest_start(msg, i);
5228 if (!nl_key)
5229 goto nla_put_failure;
5230
5231 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i],
5232 params->wep_key[i]);
5233 if (params->wep_key_len[i] == 5)
5234 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
5235 WLAN_CIPHER_SUITE_WEP40);
5236 else
5237 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
5238 WLAN_CIPHER_SUITE_WEP104);
5239
5240 NLA_PUT_U8(msg, NL80211_KEY_IDX, i);
5241
5242 if (i == params->wep_tx_keyidx)
5243 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
5244
5245 nla_nest_end(msg, nl_key);
5246 }
5247 nla_nest_end(msg, nl_keys);
5248
5249 return 0;
5250
5251 nla_put_failure:
5252 return -ENOBUFS;
5253 }
5254
5255
5256 static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
5257 const u8 *addr, int cmd, u16 reason_code,
5258 int local_state_change)
5259 {
5260 int ret = -1;
5261 struct nl_msg *msg;
5262
5263 msg = nlmsg_alloc();
5264 if (!msg)
5265 return -1;
5266
5267 nl80211_cmd(drv, msg, 0, cmd);
5268
5269 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5270 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code);
5271 if (addr)
5272 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5273 if (local_state_change)
5274 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
5275
5276 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5277 msg = NULL;
5278 if (ret) {
5279 wpa_dbg(drv->ctx, MSG_DEBUG,
5280 "nl80211: MLME command failed: reason=%u ret=%d (%s)",
5281 reason_code, ret, strerror(-ret));
5282 goto nla_put_failure;
5283 }
5284 ret = 0;
5285
5286 nla_put_failure:
5287 nlmsg_free(msg);
5288 return ret;
5289 }
5290
5291
5292 static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv,
5293 int reason_code)
5294 {
5295 int ret;
5296
5297 wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code);
5298 nl80211_mark_disconnected(drv);
5299 /* Disconnect command doesn't need BSSID - it uses cached value */
5300 ret = wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT,
5301 reason_code, 0);
5302 /*
5303 * For locally generated disconnect, supplicant already generates a
5304 * DEAUTH event, so ignore the event from NL80211.
5305 */
5306 drv->ignore_next_local_disconnect = ret == 0;
5307
5308 return ret;
5309 }
5310
5311
5312 static int wpa_driver_nl80211_deauthenticate(struct i802_bss *bss,
5313 const u8 *addr, int reason_code)
5314 {
5315 struct wpa_driver_nl80211_data *drv = bss->drv;
5316 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
5317 return wpa_driver_nl80211_disconnect(drv, reason_code);
5318 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)",
5319 __func__, MAC2STR(addr), reason_code);
5320 nl80211_mark_disconnected(drv);
5321 if (drv->nlmode == NL80211_IFTYPE_ADHOC)
5322 return nl80211_leave_ibss(drv);
5323 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE,
5324 reason_code, 0);
5325 }
5326
5327
5328 static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv,
5329 struct wpa_driver_auth_params *params)
5330 {
5331 int i;
5332
5333 drv->auth_freq = params->freq;
5334 drv->auth_alg = params->auth_alg;
5335 drv->auth_wep_tx_keyidx = params->wep_tx_keyidx;
5336 drv->auth_local_state_change = params->local_state_change;
5337 drv->auth_p2p = params->p2p;
5338
5339 if (params->bssid)
5340 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN);
5341 else
5342 os_memset(drv->auth_bssid_, 0, ETH_ALEN);
5343
5344 if (params->ssid) {
5345 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len);
5346 drv->auth_ssid_len = params->ssid_len;
5347 } else
5348 drv->auth_ssid_len = 0;
5349
5350
5351 os_free(drv->auth_ie);
5352 drv->auth_ie = NULL;
5353 drv->auth_ie_len = 0;
5354 if (params->ie) {
5355 drv->auth_ie = os_malloc(params->ie_len);
5356 if (drv->auth_ie) {
5357 os_memcpy(drv->auth_ie, params->ie, params->ie_len);
5358 drv->auth_ie_len = params->ie_len;
5359 }
5360 }
5361
5362 for (i = 0; i < 4; i++) {
5363 if (params->wep_key[i] && params->wep_key_len[i] &&
5364 params->wep_key_len[i] <= 16) {
5365 os_memcpy(drv->auth_wep_key[i], params->wep_key[i],
5366 params->wep_key_len[i]);
5367 drv->auth_wep_key_len[i] = params->wep_key_len[i];
5368 } else
5369 drv->auth_wep_key_len[i] = 0;
5370 }
5371 }
5372
5373
5374 static int wpa_driver_nl80211_authenticate(
5375 struct i802_bss *bss, struct wpa_driver_auth_params *params)
5376 {
5377 struct wpa_driver_nl80211_data *drv = bss->drv;
5378 int ret = -1, i;
5379 struct nl_msg *msg;
5380 enum nl80211_auth_type type;
5381 enum nl80211_iftype nlmode;
5382 int count = 0;
5383 int is_retry;
5384
5385 is_retry = drv->retry_auth;
5386 drv->retry_auth = 0;
5387
5388 nl80211_mark_disconnected(drv);
5389 os_memset(drv->auth_bssid, 0, ETH_ALEN);
5390 if (params->bssid)
5391 os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN);
5392 else
5393 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN);
5394 /* FIX: IBSS mode */
5395 nlmode = params->p2p ?
5396 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
5397 if (drv->nlmode != nlmode &&
5398 wpa_driver_nl80211_set_mode(bss, nlmode) < 0)
5399 return -1;
5400
5401 retry:
5402 msg = nlmsg_alloc();
5403 if (!msg)
5404 return -1;
5405
5406 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)",
5407 drv->ifindex);
5408
5409 nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE);
5410
5411 for (i = 0; i < 4; i++) {
5412 if (!params->wep_key[i])
5413 continue;
5414 wpa_driver_nl80211_set_key(bss->ifname, bss, WPA_ALG_WEP,
5415 NULL, i,
5416 i == params->wep_tx_keyidx, NULL, 0,
5417 params->wep_key[i],
5418 params->wep_key_len[i]);
5419 if (params->wep_tx_keyidx != i)
5420 continue;
5421 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0,
5422 params->wep_key[i], params->wep_key_len[i])) {
5423 nlmsg_free(msg);
5424 return -1;
5425 }
5426 }
5427
5428 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5429 if (params->bssid) {
5430 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
5431 MAC2STR(params->bssid));
5432 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
5433 }
5434 if (params->freq) {
5435 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
5436 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
5437 }
5438 if (params->ssid) {
5439 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
5440 params->ssid, params->ssid_len);
5441 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
5442 params->ssid);
5443 }
5444 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len);
5445 if (params->ie)
5446 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie);
5447 if (params->sae_data) {
5448 wpa_hexdump(MSG_DEBUG, " * SAE data", params->sae_data,
5449 params->sae_data_len);
5450 NLA_PUT(msg, NL80211_ATTR_SAE_DATA, params->sae_data_len,
5451 params->sae_data);
5452 }
5453 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
5454 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
5455 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
5456 type = NL80211_AUTHTYPE_SHARED_KEY;
5457 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
5458 type = NL80211_AUTHTYPE_NETWORK_EAP;
5459 else if (params->auth_alg & WPA_AUTH_ALG_FT)
5460 type = NL80211_AUTHTYPE_FT;
5461 else if (params->auth_alg & WPA_AUTH_ALG_SAE)
5462 type = NL80211_AUTHTYPE_SAE;
5463 else
5464 goto nla_put_failure;
5465 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
5466 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
5467 if (params->local_state_change) {
5468 wpa_printf(MSG_DEBUG, " * Local state change only");
5469 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
5470 }
5471
5472 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5473 msg = NULL;
5474 if (ret) {
5475 wpa_dbg(drv->ctx, MSG_DEBUG,
5476 "nl80211: MLME command failed (auth): ret=%d (%s)",
5477 ret, strerror(-ret));
5478 count++;
5479 if (ret == -EALREADY && count == 1 && params->bssid &&
5480 !params->local_state_change) {
5481 /*
5482 * mac80211 does not currently accept new
5483 * authentication if we are already authenticated. As a
5484 * workaround, force deauthentication and try again.
5485 */
5486 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication "
5487 "after forced deauthentication");
5488 wpa_driver_nl80211_deauthenticate(
5489 bss, params->bssid,
5490 WLAN_REASON_PREV_AUTH_NOT_VALID);
5491 nlmsg_free(msg);
5492 goto retry;
5493 }
5494
5495 if (ret == -ENOENT && params->freq && !is_retry) {
5496 /*
5497 * cfg80211 has likely expired the BSS entry even
5498 * though it was previously available in our internal
5499 * BSS table. To recover quickly, start a single
5500 * channel scan on the specified channel.
5501 */
5502 struct wpa_driver_scan_params scan;
5503 int freqs[2];
5504
5505 os_memset(&scan, 0, sizeof(scan));
5506 scan.num_ssids = 1;
5507 if (params->ssid) {
5508 scan.ssids[0].ssid = params->ssid;
5509 scan.ssids[0].ssid_len = params->ssid_len;
5510 }
5511 freqs[0] = params->freq;
5512 freqs[1] = 0;
5513 scan.freqs = freqs;
5514 wpa_printf(MSG_DEBUG, "nl80211: Trigger single "
5515 "channel scan to refresh cfg80211 BSS "
5516 "entry");
5517 ret = wpa_driver_nl80211_scan(bss, &scan);
5518 if (ret == 0) {
5519 nl80211_copy_auth_params(drv, params);
5520 drv->scan_for_auth = 1;
5521 }
5522 } else if (is_retry) {
5523 /*
5524 * Need to indicate this with an event since the return
5525 * value from the retry is not delivered to core code.
5526 */
5527 union wpa_event_data event;
5528 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry "
5529 "failed");
5530 os_memset(&event, 0, sizeof(event));
5531 os_memcpy(event.timeout_event.addr, drv->auth_bssid_,
5532 ETH_ALEN);
5533 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT,
5534 &event);
5535 }
5536
5537 goto nla_put_failure;
5538 }
5539 ret = 0;
5540 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send "
5541 "successfully");
5542
5543 nla_put_failure:
5544 nlmsg_free(msg);
5545 return ret;
5546 }
5547
5548
5549 static int wpa_driver_nl80211_authenticate_retry(
5550 struct wpa_driver_nl80211_data *drv)
5551 {
5552 struct wpa_driver_auth_params params;
5553 struct i802_bss *bss = &drv->first_bss;
5554 int i;
5555
5556 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again");
5557
5558 os_memset(&params, 0, sizeof(params));
5559 params.freq = drv->auth_freq;
5560 params.auth_alg = drv->auth_alg;
5561 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx;
5562 params.local_state_change = drv->auth_local_state_change;
5563 params.p2p = drv->auth_p2p;
5564
5565 if (!is_zero_ether_addr(drv->auth_bssid_))
5566 params.bssid = drv->auth_bssid_;
5567
5568 if (drv->auth_ssid_len) {
5569 params.ssid = drv->auth_ssid;
5570 params.ssid_len = drv->auth_ssid_len;
5571 }
5572
5573 params.ie = drv->auth_ie;
5574 params.ie_len = drv->auth_ie_len;
5575
5576 for (i = 0; i < 4; i++) {
5577 if (drv->auth_wep_key_len[i]) {
5578 params.wep_key[i] = drv->auth_wep_key[i];
5579 params.wep_key_len[i] = drv->auth_wep_key_len[i];
5580 }
5581 }
5582
5583 drv->retry_auth = 1;
5584 return wpa_driver_nl80211_authenticate(bss, &params);
5585 }
5586
5587
5588 struct phy_info_arg {
5589 u16 *num_modes;
5590 struct hostapd_hw_modes *modes;
5591 int last_mode, last_chan_idx;
5592 };
5593
5594 static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa,
5595 struct nlattr *ampdu_factor,
5596 struct nlattr *ampdu_density,
5597 struct nlattr *mcs_set)
5598 {
5599 if (capa)
5600 mode->ht_capab = nla_get_u16(capa);
5601
5602 if (ampdu_factor)
5603 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03;
5604
5605 if (ampdu_density)
5606 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2;
5607
5608 if (mcs_set && nla_len(mcs_set) >= 16) {
5609 u8 *mcs;
5610 mcs = nla_data(mcs_set);
5611 os_memcpy(mode->mcs_set, mcs, 16);
5612 }
5613 }
5614
5615
5616 static void phy_info_vht_capa(struct hostapd_hw_modes *mode,
5617 struct nlattr *capa,
5618 struct nlattr *mcs_set)
5619 {
5620 if (capa)
5621 mode->vht_capab = nla_get_u32(capa);
5622
5623 if (mcs_set && nla_len(mcs_set) >= 8) {
5624 u8 *mcs;
5625 mcs = nla_data(mcs_set);
5626 os_memcpy(mode->vht_mcs_set, mcs, 8);
5627 }
5628 }
5629
5630
5631 static void phy_info_freq(struct hostapd_hw_modes *mode,
5632 struct hostapd_channel_data *chan,
5633 struct nlattr *tb_freq[])
5634 {
5635 u8 channel;
5636 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
5637 chan->flag = 0;
5638 if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES)
5639 chan->chan = channel;
5640
5641 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
5642 chan->flag |= HOSTAPD_CHAN_DISABLED;
5643 if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
5644 chan->flag |= HOSTAPD_CHAN_PASSIVE_SCAN;
5645 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS])
5646 chan->flag |= HOSTAPD_CHAN_NO_IBSS;
5647 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
5648 chan->flag |= HOSTAPD_CHAN_RADAR;
5649
5650 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) {
5651 enum nl80211_dfs_state state =
5652 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]);
5653
5654 switch (state) {
5655 case NL80211_DFS_USABLE:
5656 chan->flag |= HOSTAPD_CHAN_DFS_USABLE;
5657 break;
5658 case NL80211_DFS_AVAILABLE:
5659 chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE;
5660 break;
5661 case NL80211_DFS_UNAVAILABLE:
5662 chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE;
5663 break;
5664 }
5665 }
5666 }
5667
5668
5669 static int phy_info_freqs(struct phy_info_arg *phy_info,
5670 struct hostapd_hw_modes *mode, struct nlattr *tb)
5671 {
5672 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
5673 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
5674 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
5675 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG },
5676 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG },
5677 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
5678 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
5679 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 },
5680 };
5681 int new_channels = 0;
5682 struct hostapd_channel_data *channel;
5683 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
5684 struct nlattr *nl_freq;
5685 int rem_freq, idx;
5686
5687 if (tb == NULL)
5688 return NL_OK;
5689
5690 nla_for_each_nested(nl_freq, tb, rem_freq) {
5691 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX,
5692 nla_data(nl_freq), nla_len(nl_freq), freq_policy);
5693 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
5694 continue;
5695 new_channels++;
5696 }
5697
5698 channel = os_realloc_array(mode->channels,
5699 mode->num_channels + new_channels,
5700 sizeof(struct hostapd_channel_data));
5701 if (!channel)
5702 return NL_SKIP;
5703
5704 mode->channels = channel;
5705 mode->num_channels += new_channels;
5706
5707 idx = phy_info->last_chan_idx;
5708
5709 nla_for_each_nested(nl_freq, tb, rem_freq) {
5710 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX,
5711 nla_data(nl_freq), nla_len(nl_freq), freq_policy);
5712 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
5713 continue;
5714 phy_info_freq(mode, &mode->channels[idx], tb_freq);
5715 idx++;
5716 }
5717 phy_info->last_chan_idx = idx;
5718
5719 return NL_OK;
5720 }
5721
5722
5723 static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb)
5724 {
5725 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
5726 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
5727 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] =
5728 { .type = NLA_FLAG },
5729 };
5730 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
5731 struct nlattr *nl_rate;
5732 int rem_rate, idx;
5733
5734 if (tb == NULL)
5735 return NL_OK;
5736
5737 nla_for_each_nested(nl_rate, tb, rem_rate) {
5738 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX,
5739 nla_data(nl_rate), nla_len(nl_rate),
5740 rate_policy);
5741 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
5742 continue;
5743 mode->num_rates++;
5744 }
5745
5746 mode->rates = os_calloc(mode->num_rates, sizeof(int));
5747 if (!mode->rates)
5748 return NL_SKIP;
5749
5750 idx = 0;
5751
5752 nla_for_each_nested(nl_rate, tb, rem_rate) {
5753 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX,
5754 nla_data(nl_rate), nla_len(nl_rate),
5755 rate_policy);
5756 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
5757 continue;
5758 mode->rates[idx] = nla_get_u32(
5759 tb_rate[NL80211_BITRATE_ATTR_RATE]);
5760 idx++;
5761 }
5762
5763 return NL_OK;
5764 }
5765
5766
5767 static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band)
5768 {
5769 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
5770 struct hostapd_hw_modes *mode;
5771 int ret;
5772
5773 if (phy_info->last_mode != nl_band->nla_type) {
5774 mode = os_realloc_array(phy_info->modes,
5775 *phy_info->num_modes + 1,
5776 sizeof(*mode));
5777 if (!mode)
5778 return NL_SKIP;
5779 phy_info->modes = mode;
5780
5781 mode = &phy_info->modes[*(phy_info->num_modes)];
5782 os_memset(mode, 0, sizeof(*mode));
5783 mode->mode = NUM_HOSTAPD_MODES;
5784 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN |
5785 HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN;
5786
5787 /*
5788 * Unsupported VHT MCS stream is defined as value 3, so the VHT
5789 * MCS RX/TX map must be initialized with 0xffff to mark all 8
5790 * possible streams as unsupported. This will be overridden if
5791 * driver advertises VHT support.
5792 */
5793 mode->vht_mcs_set[0] = 0xff;
5794 mode->vht_mcs_set[1] = 0xff;
5795 mode->vht_mcs_set[4] = 0xff;
5796 mode->vht_mcs_set[5] = 0xff;
5797
5798 *(phy_info->num_modes) += 1;
5799 phy_info->last_mode = nl_band->nla_type;
5800 phy_info->last_chan_idx = 0;
5801 } else
5802 mode = &phy_info->modes[*(phy_info->num_modes) - 1];
5803
5804 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
5805 nla_len(nl_band), NULL);
5806
5807 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA],
5808 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR],
5809 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY],
5810 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]);
5811 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA],
5812 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]);
5813 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]);
5814 if (ret != NL_OK)
5815 return ret;
5816 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]);
5817 if (ret != NL_OK)
5818 return ret;
5819
5820 return NL_OK;
5821 }
5822
5823
5824 static int phy_info_handler(struct nl_msg *msg, void *arg)
5825 {
5826 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
5827 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
5828 struct phy_info_arg *phy_info = arg;
5829 struct nlattr *nl_band;
5830 int rem_band;
5831
5832 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
5833 genlmsg_attrlen(gnlh, 0), NULL);
5834
5835 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
5836 return NL_SKIP;
5837
5838 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band)
5839 {
5840 int res = phy_info_band(phy_info, nl_band);
5841 if (res != NL_OK)
5842 return res;
5843 }
5844
5845 return NL_SKIP;
5846 }
5847
5848
5849 static struct hostapd_hw_modes *
5850 wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes,
5851 u16 *num_modes)
5852 {
5853 u16 m;
5854 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
5855 int i, mode11g_idx = -1;
5856
5857 /* heuristic to set up modes */
5858 for (m = 0; m < *num_modes; m++) {
5859 if (!modes[m].num_channels)
5860 continue;
5861 if (modes[m].channels[0].freq < 4000) {
5862 modes[m].mode = HOSTAPD_MODE_IEEE80211B;
5863 for (i = 0; i < modes[m].num_rates; i++) {
5864 if (modes[m].rates[i] > 200) {
5865 modes[m].mode = HOSTAPD_MODE_IEEE80211G;
5866 break;
5867 }
5868 }
5869 } else if (modes[m].channels[0].freq > 50000)
5870 modes[m].mode = HOSTAPD_MODE_IEEE80211AD;
5871 else
5872 modes[m].mode = HOSTAPD_MODE_IEEE80211A;
5873 }
5874
5875 /* If only 802.11g mode is included, use it to construct matching
5876 * 802.11b mode data. */
5877
5878 for (m = 0; m < *num_modes; m++) {
5879 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
5880 return modes; /* 802.11b already included */
5881 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
5882 mode11g_idx = m;
5883 }
5884
5885 if (mode11g_idx < 0)
5886 return modes; /* 2.4 GHz band not supported at all */
5887
5888 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes));
5889 if (nmodes == NULL)
5890 return modes; /* Could not add 802.11b mode */
5891
5892 mode = &nmodes[*num_modes];
5893 os_memset(mode, 0, sizeof(*mode));
5894 (*num_modes)++;
5895 modes = nmodes;
5896
5897 mode->mode = HOSTAPD_MODE_IEEE80211B;
5898
5899 mode11g = &modes[mode11g_idx];
5900 mode->num_channels = mode11g->num_channels;
5901 mode->channels = os_malloc(mode11g->num_channels *
5902 sizeof(struct hostapd_channel_data));
5903 if (mode->channels == NULL) {
5904 (*num_modes)--;
5905 return modes; /* Could not add 802.11b mode */
5906 }
5907 os_memcpy(mode->channels, mode11g->channels,
5908 mode11g->num_channels * sizeof(struct hostapd_channel_data));
5909
5910 mode->num_rates = 0;
5911 mode->rates = os_malloc(4 * sizeof(int));
5912 if (mode->rates == NULL) {
5913 os_free(mode->channels);
5914 (*num_modes)--;
5915 return modes; /* Could not add 802.11b mode */
5916 }
5917
5918 for (i = 0; i < mode11g->num_rates; i++) {
5919 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 &&
5920 mode11g->rates[i] != 55 && mode11g->rates[i] != 110)
5921 continue;
5922 mode->rates[mode->num_rates] = mode11g->rates[i];
5923 mode->num_rates++;
5924 if (mode->num_rates == 4)
5925 break;
5926 }
5927
5928 if (mode->num_rates == 0) {
5929 os_free(mode->channels);
5930 os_free(mode->rates);
5931 (*num_modes)--;
5932 return modes; /* No 802.11b rates */
5933 }
5934
5935 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
5936 "information");
5937
5938 return modes;
5939 }
5940
5941
5942 static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start,
5943 int end)
5944 {
5945 int c;
5946
5947 for (c = 0; c < mode->num_channels; c++) {
5948 struct hostapd_channel_data *chan = &mode->channels[c];
5949 if (chan->freq - 10 >= start && chan->freq + 10 <= end)
5950 chan->flag |= HOSTAPD_CHAN_HT40;
5951 }
5952 }
5953
5954
5955 static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start,
5956 int end)
5957 {
5958 int c;
5959
5960 for (c = 0; c < mode->num_channels; c++) {
5961 struct hostapd_channel_data *chan = &mode->channels[c];
5962 if (!(chan->flag & HOSTAPD_CHAN_HT40))
5963 continue;
5964 if (chan->freq - 30 >= start && chan->freq - 10 <= end)
5965 chan->flag |= HOSTAPD_CHAN_HT40MINUS;
5966 if (chan->freq + 10 >= start && chan->freq + 30 <= end)
5967 chan->flag |= HOSTAPD_CHAN_HT40PLUS;
5968 }
5969 }
5970
5971
5972 static void nl80211_reg_rule_max_eirp(struct nlattr *tb[],
5973 struct phy_info_arg *results)
5974 {
5975 u32 start, end, max_eirp;
5976 u16 m;
5977
5978 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
5979 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
5980 tb[NL80211_ATTR_POWER_RULE_MAX_EIRP] == NULL)
5981 return;
5982
5983 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
5984 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
5985 max_eirp = nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]) / 100;
5986
5987 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u mBm",
5988 start, end, max_eirp);
5989
5990 for (m = 0; m < *results->num_modes; m++) {
5991 int c;
5992 struct hostapd_hw_modes *mode = &results->modes[m];
5993
5994 for (c = 0; c < mode->num_channels; c++) {
5995 struct hostapd_channel_data *chan = &mode->channels[c];
5996 if ((u32) chan->freq - 10 >= start &&
5997 (u32) chan->freq + 10 <= end)
5998 chan->max_tx_power = max_eirp;
5999 }
6000 }
6001 }
6002
6003
6004 static void nl80211_reg_rule_ht40(struct nlattr *tb[],
6005 struct phy_info_arg *results)
6006 {
6007 u32 start, end, max_bw;
6008 u16 m;
6009
6010 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
6011 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
6012 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
6013 return;
6014
6015 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
6016 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
6017 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
6018
6019 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz",
6020 start, end, max_bw);
6021 if (max_bw < 40)
6022 return;
6023
6024 for (m = 0; m < *results->num_modes; m++) {
6025 if (!(results->modes[m].ht_capab &
6026 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
6027 continue;
6028 nl80211_set_ht40_mode(&results->modes[m], start, end);
6029 }
6030 }
6031
6032
6033 static void nl80211_reg_rule_sec(struct nlattr *tb[],
6034 struct phy_info_arg *results)
6035 {
6036 u32 start, end, max_bw;
6037 u16 m;
6038
6039 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
6040 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
6041 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
6042 return;
6043
6044 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
6045 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
6046 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
6047
6048 if (max_bw < 20)
6049 return;
6050
6051 for (m = 0; m < *results->num_modes; m++) {
6052 if (!(results->modes[m].ht_capab &
6053 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
6054 continue;
6055 nl80211_set_ht40_mode_sec(&results->modes[m], start, end);
6056 }
6057 }
6058
6059
6060 static void nl80211_set_vht_mode(struct hostapd_hw_modes *mode, int start,
6061 int end)
6062 {
6063 int c;
6064
6065 for (c = 0; c < mode->num_channels; c++) {
6066 struct hostapd_channel_data *chan = &mode->channels[c];
6067 if (chan->freq - 10 >= start && chan->freq + 70 <= end)
6068 chan->flag |= HOSTAPD_CHAN_VHT_10_70;
6069
6070 if (chan->freq - 30 >= start && chan->freq + 50 <= end)
6071 chan->flag |= HOSTAPD_CHAN_VHT_30_50;
6072
6073 if (chan->freq - 50 >= start && chan->freq + 30 <= end)
6074 chan->flag |= HOSTAPD_CHAN_VHT_50_30;
6075
6076 if (chan->freq - 70 >= start && chan->freq + 10 <= end)
6077 chan->flag |= HOSTAPD_CHAN_VHT_70_10;
6078 }
6079 }
6080
6081
6082 static void nl80211_reg_rule_vht(struct nlattr *tb[],
6083 struct phy_info_arg *results)
6084 {
6085 u32 start, end, max_bw;
6086 u16 m;
6087
6088 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
6089 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
6090 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
6091 return;
6092
6093 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
6094 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
6095 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
6096
6097 if (max_bw < 80)
6098 return;
6099
6100 for (m = 0; m < *results->num_modes; m++) {
6101 if (!(results->modes[m].ht_capab &
6102 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
6103 continue;
6104 /* TODO: use a real VHT support indication */
6105 if (!results->modes[m].vht_capab)
6106 continue;
6107
6108 nl80211_set_vht_mode(&results->modes[m], start, end);
6109 }
6110 }
6111
6112
6113 static int nl80211_get_reg(struct nl_msg *msg, void *arg)
6114 {
6115 struct phy_info_arg *results = arg;
6116 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
6117 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
6118 struct nlattr *nl_rule;
6119 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1];
6120 int rem_rule;
6121 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
6122 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
6123 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
6124 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
6125 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
6126 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
6127 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
6128 };
6129
6130 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
6131 genlmsg_attrlen(gnlh, 0), NULL);
6132 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] ||
6133 !tb_msg[NL80211_ATTR_REG_RULES]) {
6134 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information "
6135 "available");
6136 return NL_SKIP;
6137 }
6138
6139 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s",
6140 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]));
6141
6142 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
6143 {
6144 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
6145 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
6146 nl80211_reg_rule_ht40(tb_rule, results);
6147 nl80211_reg_rule_max_eirp(tb_rule, results);
6148 }
6149
6150 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
6151 {
6152 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
6153 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
6154 nl80211_reg_rule_sec(tb_rule, results);
6155 }
6156
6157 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
6158 {
6159 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
6160 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
6161 nl80211_reg_rule_vht(tb_rule, results);
6162 }
6163
6164 return NL_SKIP;
6165 }
6166
6167
6168 static int nl80211_set_regulatory_flags(struct wpa_driver_nl80211_data *drv,
6169 struct phy_info_arg *results)
6170 {
6171 struct nl_msg *msg;
6172
6173 msg = nlmsg_alloc();
6174 if (!msg)
6175 return -ENOMEM;
6176
6177 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG);
6178 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results);
6179 }
6180
6181
6182 static struct hostapd_hw_modes *
6183 wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
6184 {
6185 u32 feat;
6186 struct i802_bss *bss = priv;
6187 struct wpa_driver_nl80211_data *drv = bss->drv;
6188 struct nl_msg *msg;
6189 struct phy_info_arg result = {
6190 .num_modes = num_modes,
6191 .modes = NULL,
6192 .last_mode = -1,
6193 };
6194
6195 *num_modes = 0;
6196 *flags = 0;
6197
6198 msg = nlmsg_alloc();
6199 if (!msg)
6200 return NULL;
6201
6202 feat = get_nl80211_protocol_features(drv);
6203 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)
6204 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY);
6205 else
6206 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY);
6207
6208 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP);
6209 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6210
6211 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) {
6212 nl80211_set_regulatory_flags(drv, &result);
6213 return wpa_driver_nl80211_postprocess_modes(result.modes,
6214 num_modes);
6215 }
6216 msg = NULL;
6217 nla_put_failure:
6218 nlmsg_free(msg);
6219 return NULL;
6220 }
6221
6222
6223 static int wpa_driver_nl80211_send_mntr(struct wpa_driver_nl80211_data *drv,
6224 const void *data, size_t len,
6225 int encrypt, int noack)
6226 {
6227 __u8 rtap_hdr[] = {
6228 0x00, 0x00, /* radiotap version */
6229 0x0e, 0x00, /* radiotap length */
6230 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */
6231 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */
6232 0x00, /* padding */
6233 0x00, 0x00, /* RX and TX flags to indicate that */
6234 0x00, 0x00, /* this is the injected frame directly */
6235 };
6236 struct iovec iov[2] = {
6237 {
6238 .iov_base = &rtap_hdr,
6239 .iov_len = sizeof(rtap_hdr),
6240 },
6241 {
6242 .iov_base = (void *) data,
6243 .iov_len = len,
6244 }
6245 };
6246 struct msghdr msg = {
6247 .msg_name = NULL,
6248 .msg_namelen = 0,
6249 .msg_iov = iov,
6250 .msg_iovlen = 2,
6251 .msg_control = NULL,
6252 .msg_controllen = 0,
6253 .msg_flags = 0,
6254 };
6255 int res;
6256 u16 txflags = 0;
6257
6258 if (encrypt)
6259 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP;
6260
6261 if (drv->monitor_sock < 0) {
6262 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available "
6263 "for %s", __func__);
6264 return -1;
6265 }
6266
6267 if (noack)
6268 txflags |= IEEE80211_RADIOTAP_F_TX_NOACK;
6269 WPA_PUT_LE16(&rtap_hdr[12], txflags);
6270
6271 res = sendmsg(drv->monitor_sock, &msg, 0);
6272 if (res < 0) {
6273 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno));
6274 return -1;
6275 }
6276 return 0;
6277 }
6278
6279
6280 static int wpa_driver_nl80211_send_frame(struct i802_bss *bss,
6281 const void *data, size_t len,
6282 int encrypt, int noack,
6283 unsigned int freq, int no_cck,
6284 int offchanok, unsigned int wait_time)
6285 {
6286 struct wpa_driver_nl80211_data *drv = bss->drv;
6287 u64 cookie;
6288 int res;
6289
6290 if (freq == 0) {
6291 wpa_printf(MSG_DEBUG, "nl80211: send_frame - Use bss->freq=%u",
6292 bss->freq);
6293 freq = bss->freq;
6294 }
6295
6296 if (drv->use_monitor) {
6297 wpa_printf(MSG_DEBUG, "nl80211: send_frame(freq=%u bss->freq=%u) -> send_mntr",
6298 freq, bss->freq);
6299 return wpa_driver_nl80211_send_mntr(drv, data, len,
6300 encrypt, noack);
6301 }
6302
6303 wpa_printf(MSG_DEBUG, "nl80211: send_frame -> send_frame_cmd");
6304 res = nl80211_send_frame_cmd(bss, freq, wait_time, data, len,
6305 &cookie, no_cck, noack, offchanok);
6306 if (res == 0 && !noack) {
6307 const struct ieee80211_mgmt *mgmt;
6308 u16 fc;
6309
6310 mgmt = (const struct ieee80211_mgmt *) data;
6311 fc = le_to_host16(mgmt->frame_control);
6312 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
6313 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_ACTION) {
6314 wpa_printf(MSG_MSGDUMP,
6315 "nl80211: Update send_action_cookie from 0x%llx to 0x%llx",
6316 (long long unsigned int)
6317 drv->send_action_cookie,
6318 (long long unsigned int) cookie);
6319 drv->send_action_cookie = cookie;
6320 }
6321 }
6322
6323 return res;
6324 }
6325
6326
6327 static int wpa_driver_nl80211_send_mlme(struct i802_bss *bss, const u8 *data,
6328 size_t data_len, int noack,
6329 unsigned int freq, int no_cck,
6330 int offchanok,
6331 unsigned int wait_time)
6332 {
6333 struct wpa_driver_nl80211_data *drv = bss->drv;
6334 struct ieee80211_mgmt *mgmt;
6335 int encrypt = 1;
6336 u16 fc;
6337
6338 mgmt = (struct ieee80211_mgmt *) data;
6339 fc = le_to_host16(mgmt->frame_control);
6340 wpa_printf(MSG_DEBUG, "nl80211: send_mlme - noack=%d freq=%u no_cck=%d offchanok=%d wait_time=%u fc=0x%x nlmode=%d",
6341 noack, freq, no_cck, offchanok, wait_time, fc, drv->nlmode);
6342
6343 if ((is_sta_interface(drv->nlmode) ||
6344 drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) &&
6345 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
6346 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) {
6347 /*
6348 * The use of last_mgmt_freq is a bit of a hack,
6349 * but it works due to the single-threaded nature
6350 * of wpa_supplicant.
6351 */
6352 if (freq == 0) {
6353 wpa_printf(MSG_DEBUG, "nl80211: Use last_mgmt_freq=%d",
6354 drv->last_mgmt_freq);
6355 freq = drv->last_mgmt_freq;
6356 }
6357 return nl80211_send_frame_cmd(bss, freq, 0,
6358 data, data_len, NULL, 1, noack,
6359 1);
6360 }
6361
6362 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) {
6363 if (freq == 0) {
6364 wpa_printf(MSG_DEBUG, "nl80211: Use bss->freq=%d",
6365 bss->freq);
6366 freq = bss->freq;
6367 }
6368 return nl80211_send_frame_cmd(bss, freq,
6369 (int) freq == bss->freq ? 0 :
6370 wait_time,
6371 data, data_len,
6372 &drv->send_action_cookie,
6373 no_cck, noack, offchanok);
6374 }
6375
6376 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
6377 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) {
6378 /*
6379 * Only one of the authentication frame types is encrypted.
6380 * In order for static WEP encryption to work properly (i.e.,
6381 * to not encrypt the frame), we need to tell mac80211 about
6382 * the frames that must not be encrypted.
6383 */
6384 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
6385 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction);
6386 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3)
6387 encrypt = 0;
6388 }
6389
6390 wpa_printf(MSG_DEBUG, "nl80211: send_mlme -> send_frame");
6391 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt,
6392 noack, freq, no_cck, offchanok,
6393 wait_time);
6394 }
6395
6396
6397 static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble,
6398 int slot, int ht_opmode, int ap_isolate,
6399 int *basic_rates)
6400 {
6401 struct wpa_driver_nl80211_data *drv = bss->drv;
6402 struct nl_msg *msg;
6403
6404 msg = nlmsg_alloc();
6405 if (!msg)
6406 return -ENOMEM;
6407
6408 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS);
6409
6410 if (cts >= 0)
6411 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts);
6412 if (preamble >= 0)
6413 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble);
6414 if (slot >= 0)
6415 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot);
6416 if (ht_opmode >= 0)
6417 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode);
6418 if (ap_isolate >= 0)
6419 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate);
6420
6421 if (basic_rates) {
6422 u8 rates[NL80211_MAX_SUPP_RATES];
6423 u8 rates_len = 0;
6424 int i;
6425
6426 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0;
6427 i++)
6428 rates[rates_len++] = basic_rates[i] / 5;
6429
6430 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates);
6431 }
6432
6433 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
6434
6435 return send_and_recv_msgs(drv, msg, NULL, NULL);
6436 nla_put_failure:
6437 nlmsg_free(msg);
6438 return -ENOBUFS;
6439 }
6440
6441
6442 static int wpa_driver_nl80211_set_acl(void *priv,
6443 struct hostapd_acl_params *params)
6444 {
6445 struct i802_bss *bss = priv;
6446 struct wpa_driver_nl80211_data *drv = bss->drv;
6447 struct nl_msg *msg;
6448 struct nlattr *acl;
6449 unsigned int i;
6450 int ret = 0;
6451
6452 if (!(drv->capa.max_acl_mac_addrs))
6453 return -ENOTSUP;
6454
6455 if (params->num_mac_acl > drv->capa.max_acl_mac_addrs)
6456 return -ENOTSUP;
6457
6458 msg = nlmsg_alloc();
6459 if (!msg)
6460 return -ENOMEM;
6461
6462 wpa_printf(MSG_DEBUG, "nl80211: Set %s ACL (num_mac_acl=%u)",
6463 params->acl_policy ? "Accept" : "Deny", params->num_mac_acl);
6464
6465 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_MAC_ACL);
6466
6467 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6468
6469 NLA_PUT_U32(msg, NL80211_ATTR_ACL_POLICY, params->acl_policy ?
6470 NL80211_ACL_POLICY_DENY_UNLESS_LISTED :
6471 NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED);
6472
6473 acl = nla_nest_start(msg, NL80211_ATTR_MAC_ADDRS);
6474 if (acl == NULL)
6475 goto nla_put_failure;
6476
6477 for (i = 0; i < params->num_mac_acl; i++)
6478 NLA_PUT(msg, i + 1, ETH_ALEN, params->mac_acl[i].addr);
6479
6480 nla_nest_end(msg, acl);
6481
6482 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6483 msg = NULL;
6484 if (ret) {
6485 wpa_printf(MSG_DEBUG, "nl80211: Failed to set MAC ACL: %d (%s)",
6486 ret, strerror(-ret));
6487 }
6488
6489 nla_put_failure:
6490 nlmsg_free(msg);
6491
6492 return ret;
6493 }
6494
6495
6496 static int wpa_driver_nl80211_set_ap(void *priv,
6497 struct wpa_driver_ap_params *params)
6498 {
6499 struct i802_bss *bss = priv;
6500 struct wpa_driver_nl80211_data *drv = bss->drv;
6501 struct nl_msg *msg;
6502 u8 cmd = NL80211_CMD_NEW_BEACON;
6503 int ret;
6504 int beacon_set;
6505 int ifindex = if_nametoindex(bss->ifname);
6506 int num_suites;
6507 u32 suites[10];
6508 u32 ver;
6509
6510 beacon_set = bss->beacon_set;
6511
6512 msg = nlmsg_alloc();
6513 if (!msg)
6514 return -ENOMEM;
6515
6516 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)",
6517 beacon_set);
6518 if (beacon_set)
6519 cmd = NL80211_CMD_SET_BEACON;
6520
6521 nl80211_cmd(drv, msg, 0, cmd);
6522 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon head",
6523 params->head, params->head_len);
6524 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head);
6525 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon tail",
6526 params->tail, params->tail_len);
6527 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail);
6528 wpa_printf(MSG_DEBUG, "nl80211: ifindex=%d", ifindex);
6529 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
6530 wpa_printf(MSG_DEBUG, "nl80211: beacon_int=%d", params->beacon_int);
6531 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int);
6532 wpa_printf(MSG_DEBUG, "nl80211: dtim_period=%d", params->dtim_period);
6533 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period);
6534 wpa_hexdump_ascii(MSG_DEBUG, "nl80211: ssid",
6535 params->ssid, params->ssid_len);
6536 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
6537 params->ssid);
6538 if (params->proberesp && params->proberesp_len) {
6539 wpa_hexdump(MSG_DEBUG, "nl80211: proberesp (offload)",
6540 params->proberesp, params->proberesp_len);
6541 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len,
6542 params->proberesp);
6543 }
6544 switch (params->hide_ssid) {
6545 case NO_SSID_HIDING:
6546 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID not in use");
6547 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
6548 NL80211_HIDDEN_SSID_NOT_IN_USE);
6549 break;
6550 case HIDDEN_SSID_ZERO_LEN:
6551 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero len");
6552 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
6553 NL80211_HIDDEN_SSID_ZERO_LEN);
6554 break;
6555 case HIDDEN_SSID_ZERO_CONTENTS:
6556 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero contents");
6557 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
6558 NL80211_HIDDEN_SSID_ZERO_CONTENTS);
6559 break;
6560 }
6561 wpa_printf(MSG_DEBUG, "nl80211: privacy=%d", params->privacy);
6562 if (params->privacy)
6563 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
6564 wpa_printf(MSG_DEBUG, "nl80211: auth_algs=0x%x", params->auth_algs);
6565 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) ==
6566 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) {
6567 /* Leave out the attribute */
6568 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED)
6569 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE,
6570 NL80211_AUTHTYPE_SHARED_KEY);
6571 else
6572 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE,
6573 NL80211_AUTHTYPE_OPEN_SYSTEM);
6574
6575 wpa_printf(MSG_DEBUG, "nl80211: wpa_version=0x%x", params->wpa_version);
6576 ver = 0;
6577 if (params->wpa_version & WPA_PROTO_WPA)
6578 ver |= NL80211_WPA_VERSION_1;
6579 if (params->wpa_version & WPA_PROTO_RSN)
6580 ver |= NL80211_WPA_VERSION_2;
6581 if (ver)
6582 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
6583
6584 wpa_printf(MSG_DEBUG, "nl80211: key_mgmt_suites=0x%x",
6585 params->key_mgmt_suites);
6586 num_suites = 0;
6587 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X)
6588 suites[num_suites++] = WLAN_AKM_SUITE_8021X;
6589 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK)
6590 suites[num_suites++] = WLAN_AKM_SUITE_PSK;
6591 if (num_suites) {
6592 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES,
6593 num_suites * sizeof(u32), suites);
6594 }
6595
6596 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X &&
6597 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40))
6598 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT);
6599
6600 wpa_printf(MSG_DEBUG, "nl80211: pairwise_ciphers=0x%x",
6601 params->pairwise_ciphers);
6602 num_suites = 0;
6603 if (params->pairwise_ciphers & WPA_CIPHER_CCMP)
6604 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP;
6605 if (params->pairwise_ciphers & WPA_CIPHER_GCMP)
6606 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP;
6607 if (params->pairwise_ciphers & WPA_CIPHER_TKIP)
6608 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP;
6609 if (params->pairwise_ciphers & WPA_CIPHER_WEP104)
6610 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104;
6611 if (params->pairwise_ciphers & WPA_CIPHER_WEP40)
6612 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40;
6613 if (num_suites) {
6614 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE,
6615 num_suites * sizeof(u32), suites);
6616 }
6617
6618 wpa_printf(MSG_DEBUG, "nl80211: group_cipher=0x%x",
6619 params->group_cipher);
6620 switch (params->group_cipher) {
6621 case WPA_CIPHER_CCMP:
6622 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
6623 WLAN_CIPHER_SUITE_CCMP);
6624 break;
6625 case WPA_CIPHER_GCMP:
6626 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
6627 WLAN_CIPHER_SUITE_GCMP);
6628 break;
6629 case WPA_CIPHER_TKIP:
6630 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
6631 WLAN_CIPHER_SUITE_TKIP);
6632 break;
6633 case WPA_CIPHER_WEP104:
6634 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
6635 WLAN_CIPHER_SUITE_WEP104);
6636 break;
6637 case WPA_CIPHER_WEP40:
6638 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
6639 WLAN_CIPHER_SUITE_WEP40);
6640 break;
6641 }
6642
6643 if (params->beacon_ies) {
6644 wpa_hexdump_buf(MSG_DEBUG, "nl80211: beacon_ies",
6645 params->beacon_ies);
6646 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies),
6647 wpabuf_head(params->beacon_ies));
6648 }
6649 if (params->proberesp_ies) {
6650 wpa_hexdump_buf(MSG_DEBUG, "nl80211: proberesp_ies",
6651 params->proberesp_ies);
6652 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP,
6653 wpabuf_len(params->proberesp_ies),
6654 wpabuf_head(params->proberesp_ies));
6655 }
6656 if (params->assocresp_ies) {
6657 wpa_hexdump_buf(MSG_DEBUG, "nl80211: assocresp_ies",
6658 params->assocresp_ies);
6659 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP,
6660 wpabuf_len(params->assocresp_ies),
6661 wpabuf_head(params->assocresp_ies));
6662 }
6663
6664 if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) {
6665 wpa_printf(MSG_DEBUG, "nl80211: ap_max_inactivity=%d",
6666 params->ap_max_inactivity);
6667 NLA_PUT_U16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT,
6668 params->ap_max_inactivity);
6669 }
6670
6671 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6672 if (ret) {
6673 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)",
6674 ret, strerror(-ret));
6675 } else {
6676 bss->beacon_set = 1;
6677 nl80211_set_bss(bss, params->cts_protect, params->preamble,
6678 params->short_slot_time, params->ht_opmode,
6679 params->isolate, params->basic_rates);
6680 }
6681 return ret;
6682 nla_put_failure:
6683 nlmsg_free(msg);
6684 return -ENOBUFS;
6685 }
6686
6687
6688 static int wpa_driver_nl80211_set_freq(struct i802_bss *bss,
6689 struct hostapd_freq_params *freq)
6690 {
6691 struct wpa_driver_nl80211_data *drv = bss->drv;
6692 struct nl_msg *msg;
6693 int ret;
6694
6695 wpa_printf(MSG_DEBUG, "nl80211: Set freq %d (ht_enabled=%d, vht_enabled=%d,"
6696 " bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)",
6697 freq->freq, freq->ht_enabled, freq->vht_enabled,
6698 freq->bandwidth, freq->center_freq1, freq->center_freq2);
6699 msg = nlmsg_alloc();
6700 if (!msg)
6701 return -1;
6702
6703 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
6704
6705 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6706 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq);
6707 if (freq->vht_enabled) {
6708 switch (freq->bandwidth) {
6709 case 20:
6710 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
6711 NL80211_CHAN_WIDTH_20);
6712 break;
6713 case 40:
6714 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
6715 NL80211_CHAN_WIDTH_40);
6716 break;
6717 case 80:
6718 if (freq->center_freq2)
6719 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
6720 NL80211_CHAN_WIDTH_80P80);
6721 else
6722 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
6723 NL80211_CHAN_WIDTH_80);
6724 break;
6725 case 160:
6726 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
6727 NL80211_CHAN_WIDTH_160);
6728 break;
6729 default:
6730 return -1;
6731 }
6732 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1);
6733 if (freq->center_freq2)
6734 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2,
6735 freq->center_freq2);
6736 } else if (freq->ht_enabled) {
6737 switch (freq->sec_channel_offset) {
6738 case -1:
6739 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
6740 NL80211_CHAN_HT40MINUS);
6741 break;
6742 case 1:
6743 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
6744 NL80211_CHAN_HT40PLUS);
6745 break;
6746 default:
6747 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
6748 NL80211_CHAN_HT20);
6749 break;
6750 }
6751 }
6752
6753 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6754 msg = NULL;
6755 if (ret == 0) {
6756 bss->freq = freq->freq;
6757 return 0;
6758 }
6759 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): "
6760 "%d (%s)", freq->freq, ret, strerror(-ret));
6761 nla_put_failure:
6762 nlmsg_free(msg);
6763 return -1;
6764 }
6765
6766
6767 static u32 sta_flags_nl80211(int flags)
6768 {
6769 u32 f = 0;
6770
6771 if (flags & WPA_STA_AUTHORIZED)
6772 f |= BIT(NL80211_STA_FLAG_AUTHORIZED);
6773 if (flags & WPA_STA_WMM)
6774 f |= BIT(NL80211_STA_FLAG_WME);
6775 if (flags & WPA_STA_SHORT_PREAMBLE)
6776 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
6777 if (flags & WPA_STA_MFP)
6778 f |= BIT(NL80211_STA_FLAG_MFP);
6779 if (flags & WPA_STA_TDLS_PEER)
6780 f |= BIT(NL80211_STA_FLAG_TDLS_PEER);
6781
6782 return f;
6783 }
6784
6785
6786 static int wpa_driver_nl80211_sta_add(void *priv,
6787 struct hostapd_sta_add_params *params)
6788 {
6789 struct i802_bss *bss = priv;
6790 struct wpa_driver_nl80211_data *drv = bss->drv;
6791 struct nl_msg *msg;
6792 struct nl80211_sta_flag_update upd;
6793 int ret = -ENOBUFS;
6794
6795 if ((params->flags & WPA_STA_TDLS_PEER) &&
6796 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
6797 return -EOPNOTSUPP;
6798
6799 msg = nlmsg_alloc();
6800 if (!msg)
6801 return -ENOMEM;
6802
6803 wpa_printf(MSG_DEBUG, "nl80211: %s STA " MACSTR,
6804 params->set ? "Set" : "Add", MAC2STR(params->addr));
6805 nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION :
6806 NL80211_CMD_NEW_STATION);
6807
6808 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
6809 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr);
6810 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len,
6811 params->supp_rates);
6812 wpa_hexdump(MSG_DEBUG, " * supported rates", params->supp_rates,
6813 params->supp_rates_len);
6814 if (!params->set) {
6815 if (params->aid) {
6816 wpa_printf(MSG_DEBUG, " * aid=%u", params->aid);
6817 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid);
6818 } else {
6819 /*
6820 * cfg80211 validates that AID is non-zero, so we have
6821 * to make this a non-zero value for the TDLS case where
6822 * a dummy STA entry is used for now.
6823 */
6824 wpa_printf(MSG_DEBUG, " * aid=1 (TDLS workaround)");
6825 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, 1);
6826 }
6827 wpa_printf(MSG_DEBUG, " * listen_interval=%u",
6828 params->listen_interval);
6829 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL,
6830 params->listen_interval);
6831 } else if (params->aid && (params->flags & WPA_STA_TDLS_PEER)) {
6832 wpa_printf(MSG_DEBUG, " * peer_aid=%u", params->aid);
6833 NLA_PUT_U16(msg, NL80211_ATTR_PEER_AID, params->aid);
6834 }
6835 if (params->ht_capabilities) {
6836 wpa_hexdump(MSG_DEBUG, " * ht_capabilities",
6837 (u8 *) params->ht_capabilities,
6838 sizeof(*params->ht_capabilities));
6839 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY,
6840 sizeof(*params->ht_capabilities),
6841 params->ht_capabilities);
6842 }
6843
6844 if (params->vht_capabilities) {
6845 wpa_hexdump(MSG_DEBUG, " * vht_capabilities",
6846 (u8 *) params->vht_capabilities,
6847 sizeof(*params->vht_capabilities));
6848 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY,
6849 sizeof(*params->vht_capabilities),
6850 params->vht_capabilities);
6851 }
6852
6853 wpa_printf(MSG_DEBUG, " * capability=0x%x", params->capability);
6854 NLA_PUT_U16(msg, NL80211_ATTR_STA_CAPABILITY, params->capability);
6855
6856 if (params->ext_capab) {
6857 wpa_hexdump(MSG_DEBUG, " * ext_capab",
6858 params->ext_capab, params->ext_capab_len);
6859 NLA_PUT(msg, NL80211_ATTR_STA_EXT_CAPABILITY,
6860 params->ext_capab_len, params->ext_capab);
6861 }
6862
6863 os_memset(&upd, 0, sizeof(upd));
6864 upd.mask = sta_flags_nl80211(params->flags);
6865 upd.set = upd.mask;
6866 wpa_printf(MSG_DEBUG, " * flags set=0x%x mask=0x%x",
6867 upd.set, upd.mask);
6868 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
6869
6870 if (params->flags & WPA_STA_WMM) {
6871 struct nlattr *wme = nla_nest_start(msg, NL80211_ATTR_STA_WME);
6872
6873 if (!wme)
6874 goto nla_put_failure;
6875
6876 wpa_printf(MSG_DEBUG, " * qosinfo=0x%x", params->qosinfo);
6877 NLA_PUT_U8(msg, NL80211_STA_WME_UAPSD_QUEUES,
6878 params->qosinfo & WMM_QOSINFO_STA_AC_MASK);
6879 NLA_PUT_U8(msg, NL80211_STA_WME_MAX_SP,
6880 (params->qosinfo >> WMM_QOSINFO_STA_SP_SHIFT) &
6881 WMM_QOSINFO_STA_SP_MASK);
6882 nla_nest_end(msg, wme);
6883 }
6884
6885 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6886 msg = NULL;
6887 if (ret)
6888 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION "
6889 "result: %d (%s)", params->set ? "SET" : "NEW", ret,
6890 strerror(-ret));
6891 if (ret == -EEXIST)
6892 ret = 0;
6893 nla_put_failure:
6894 nlmsg_free(msg);
6895 return ret;
6896 }
6897
6898
6899 static int wpa_driver_nl80211_sta_remove(struct i802_bss *bss, const u8 *addr)
6900 {
6901 struct wpa_driver_nl80211_data *drv = bss->drv;
6902 struct nl_msg *msg;
6903 int ret;
6904
6905 msg = nlmsg_alloc();
6906 if (!msg)
6907 return -ENOMEM;
6908
6909 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION);
6910
6911 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
6912 if_nametoindex(bss->ifname));
6913 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6914
6915 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6916 wpa_printf(MSG_DEBUG, "nl80211: sta_remove -> DEL_STATION %s " MACSTR
6917 " --> %d (%s)",
6918 bss->ifname, MAC2STR(addr), ret, strerror(-ret));
6919 if (ret == -ENOENT)
6920 return 0;
6921 return ret;
6922 nla_put_failure:
6923 nlmsg_free(msg);
6924 return -ENOBUFS;
6925 }
6926
6927
6928 static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
6929 int ifidx)
6930 {
6931 struct nl_msg *msg;
6932
6933 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx);
6934
6935 /* stop listening for EAPOL on this interface */
6936 del_ifidx(drv, ifidx);
6937
6938 msg = nlmsg_alloc();
6939 if (!msg)
6940 goto nla_put_failure;
6941
6942 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE);
6943 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx);
6944
6945 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
6946 return;
6947 msg = NULL;
6948 nla_put_failure:
6949 nlmsg_free(msg);
6950 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx);
6951 }
6952
6953
6954 static const char * nl80211_iftype_str(enum nl80211_iftype mode)
6955 {
6956 switch (mode) {
6957 case NL80211_IFTYPE_ADHOC:
6958 return "ADHOC";
6959 case NL80211_IFTYPE_STATION:
6960 return "STATION";
6961 case NL80211_IFTYPE_AP:
6962 return "AP";
6963 case NL80211_IFTYPE_AP_VLAN:
6964 return "AP_VLAN";
6965 case NL80211_IFTYPE_WDS:
6966 return "WDS";
6967 case NL80211_IFTYPE_MONITOR:
6968 return "MONITOR";
6969 case NL80211_IFTYPE_MESH_POINT:
6970 return "MESH_POINT";
6971 case NL80211_IFTYPE_P2P_CLIENT:
6972 return "P2P_CLIENT";
6973 case NL80211_IFTYPE_P2P_GO:
6974 return "P2P_GO";
6975 case NL80211_IFTYPE_P2P_DEVICE:
6976 return "P2P_DEVICE";
6977 default:
6978 return "unknown";
6979 }
6980 }
6981
6982
6983 static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv,
6984 const char *ifname,
6985 enum nl80211_iftype iftype,
6986 const u8 *addr, int wds,
6987 int (*handler)(struct nl_msg *, void *),
6988 void *arg)
6989 {
6990 struct nl_msg *msg;
6991 int ifidx;
6992 int ret = -ENOBUFS;
6993
6994 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)",
6995 iftype, nl80211_iftype_str(iftype));
6996
6997 msg = nlmsg_alloc();
6998 if (!msg)
6999 return -1;
7000
7001 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE);
7002 if (nl80211_set_iface_id(msg, &drv->first_bss) < 0)
7003 goto nla_put_failure;
7004 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname);
7005 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype);
7006
7007 if (iftype == NL80211_IFTYPE_MONITOR) {
7008 struct nlattr *flags;
7009
7010 flags = nla_nest_start(msg, NL80211_ATTR_MNTR_FLAGS);
7011 if (!flags)
7012 goto nla_put_failure;
7013
7014 NLA_PUT_FLAG(msg, NL80211_MNTR_FLAG_COOK_FRAMES);
7015
7016 nla_nest_end(msg, flags);
7017 } else if (wds) {
7018 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds);
7019 }
7020
7021 ret = send_and_recv_msgs(drv, msg, handler, arg);
7022 msg = NULL;
7023 if (ret) {
7024 nla_put_failure:
7025 nlmsg_free(msg);
7026 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)",
7027 ifname, ret, strerror(-ret));
7028 return ret;
7029 }
7030
7031 if (iftype == NL80211_IFTYPE_P2P_DEVICE)
7032 return 0;
7033
7034 ifidx = if_nametoindex(ifname);
7035 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d",
7036 ifname, ifidx);
7037
7038 if (ifidx <= 0)
7039 return -1;
7040
7041 /* start listening for EAPOL on this interface */
7042 add_ifidx(drv, ifidx);
7043
7044 if (addr && iftype != NL80211_IFTYPE_MONITOR &&
7045 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) {
7046 nl80211_remove_iface(drv, ifidx);
7047 return -1;
7048 }
7049
7050 return ifidx;
7051 }
7052
7053
7054 static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
7055 const char *ifname, enum nl80211_iftype iftype,
7056 const u8 *addr, int wds,
7057 int (*handler)(struct nl_msg *, void *),
7058 void *arg)
7059 {
7060 int ret;
7061
7062 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds, handler,
7063 arg);
7064
7065 /* if error occurred and interface exists already */
7066 if (ret == -ENFILE && if_nametoindex(ifname)) {
7067 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname);
7068
7069 /* Try to remove the interface that was already there. */
7070 nl80211_remove_iface(drv, if_nametoindex(ifname));
7071
7072 /* Try to create the interface again */
7073 ret = nl80211_create_iface_once(drv, ifname, iftype, addr,
7074 wds, handler, arg);
7075 }
7076
7077 if (ret >= 0 && is_p2p_net_interface(iftype))
7078 nl80211_disable_11b_rates(drv, ret, 1);
7079
7080 return ret;
7081 }
7082
7083
7084 static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok)
7085 {
7086 struct ieee80211_hdr *hdr;
7087 u16 fc;
7088 union wpa_event_data event;
7089
7090 hdr = (struct ieee80211_hdr *) buf;
7091 fc = le_to_host16(hdr->frame_control);
7092
7093 os_memset(&event, 0, sizeof(event));
7094 event.tx_status.type = WLAN_FC_GET_TYPE(fc);
7095 event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
7096 event.tx_status.dst = hdr->addr1;
7097 event.tx_status.data = buf;
7098 event.tx_status.data_len = len;
7099 event.tx_status.ack = ok;
7100 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event);
7101 }
7102
7103
7104 static void from_unknown_sta(struct wpa_driver_nl80211_data *drv,
7105 u8 *buf, size_t len)
7106 {
7107 struct ieee80211_hdr *hdr = (void *)buf;
7108 u16 fc;
7109 union wpa_event_data event;
7110
7111 if (len < sizeof(*hdr))
7112 return;
7113
7114 fc = le_to_host16(hdr->frame_control);
7115
7116 os_memset(&event, 0, sizeof(event));
7117 event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len);
7118 event.rx_from_unknown.addr = hdr->addr2;
7119 event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) ==
7120 (WLAN_FC_FROMDS | WLAN_FC_TODS);
7121 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event);
7122 }
7123
7124
7125 static void handle_frame(struct wpa_driver_nl80211_data *drv,
7126 u8 *buf, size_t len, int datarate, int ssi_signal)
7127 {
7128 struct ieee80211_hdr *hdr;
7129 u16 fc;
7130 union wpa_event_data event;
7131
7132 hdr = (struct ieee80211_hdr *) buf;
7133 fc = le_to_host16(hdr->frame_control);
7134
7135 switch (WLAN_FC_GET_TYPE(fc)) {
7136 case WLAN_FC_TYPE_MGMT:
7137 os_memset(&event, 0, sizeof(event));
7138 event.rx_mgmt.frame = buf;
7139 event.rx_mgmt.frame_len = len;
7140 event.rx_mgmt.datarate = datarate;
7141 event.rx_mgmt.ssi_signal = ssi_signal;
7142 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
7143 break;
7144 case WLAN_FC_TYPE_CTRL:
7145 /* can only get here with PS-Poll frames */
7146 wpa_printf(MSG_DEBUG, "CTRL");
7147 from_unknown_sta(drv, buf, len);
7148 break;
7149 case WLAN_FC_TYPE_DATA:
7150 from_unknown_sta(drv, buf, len);
7151 break;
7152 }
7153 }
7154
7155
7156 static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx)
7157 {
7158 struct wpa_driver_nl80211_data *drv = eloop_ctx;
7159 int len;
7160 unsigned char buf[3000];
7161 struct ieee80211_radiotap_iterator iter;
7162 int ret;
7163 int datarate = 0, ssi_signal = 0;
7164 int injected = 0, failed = 0, rxflags = 0;
7165
7166 len = recv(sock, buf, sizeof(buf), 0);
7167 if (len < 0) {
7168 wpa_printf(MSG_ERROR, "nl80211: Monitor socket recv failed: %s",
7169 strerror(errno));
7170 return;
7171 }
7172
7173 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) {
7174 wpa_printf(MSG_INFO, "nl80211: received invalid radiotap frame");
7175 return;
7176 }
7177
7178 while (1) {
7179 ret = ieee80211_radiotap_iterator_next(&iter);
7180 if (ret == -ENOENT)
7181 break;
7182 if (ret) {
7183 wpa_printf(MSG_INFO, "nl80211: received invalid radiotap frame (%d)",
7184 ret);
7185 return;
7186 }
7187 switch (iter.this_arg_index) {
7188 case IEEE80211_RADIOTAP_FLAGS:
7189 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS)
7190 len -= 4;
7191 break;
7192 case IEEE80211_RADIOTAP_RX_FLAGS:
7193 rxflags = 1;
7194 break;
7195 case IEEE80211_RADIOTAP_TX_FLAGS:
7196 injected = 1;
7197 failed = le_to_host16((*(uint16_t *) iter.this_arg)) &
7198 IEEE80211_RADIOTAP_F_TX_FAIL;
7199 break;
7200 case IEEE80211_RADIOTAP_DATA_RETRIES:
7201 break;
7202 case IEEE80211_RADIOTAP_CHANNEL:
7203 /* TODO: convert from freq/flags to channel number */
7204 break;
7205 case IEEE80211_RADIOTAP_RATE:
7206 datarate = *iter.this_arg * 5;
7207 break;
7208 case IEEE80211_RADIOTAP_DBM_ANTSIGNAL:
7209 ssi_signal = (s8) *iter.this_arg;
7210 break;
7211 }
7212 }
7213
7214 if (rxflags && injected)
7215 return;
7216
7217 if (!injected)
7218 handle_frame(drv, buf + iter.max_length,
7219 len - iter.max_length, datarate, ssi_signal);
7220 else
7221 handle_tx_callback(drv->ctx, buf + iter.max_length,
7222 len - iter.max_length, !failed);
7223 }
7224
7225
7226 /*
7227 * we post-process the filter code later and rewrite
7228 * this to the offset to the last instruction
7229 */
7230 #define PASS 0xFF
7231 #define FAIL 0xFE
7232
7233 static struct sock_filter msock_filter_insns[] = {
7234 /*
7235 * do a little-endian load of the radiotap length field
7236 */
7237 /* load lower byte into A */
7238 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2),
7239 /* put it into X (== index register) */
7240 BPF_STMT(BPF_MISC| BPF_TAX, 0),
7241 /* load upper byte into A */
7242 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3),
7243 /* left-shift it by 8 */
7244 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8),
7245 /* or with X */
7246 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0),
7247 /* put result into X */
7248 BPF_STMT(BPF_MISC| BPF_TAX, 0),
7249
7250 /*
7251 * Allow management frames through, this also gives us those
7252 * management frames that we sent ourselves with status
7253 */
7254 /* load the lower byte of the IEEE 802.11 frame control field */
7255 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
7256 /* mask off frame type and version */
7257 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF),
7258 /* accept frame if it's both 0, fall through otherwise */
7259 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0),
7260
7261 /*
7262 * TODO: add a bit to radiotap RX flags that indicates
7263 * that the sending station is not associated, then
7264 * add a filter here that filters on our DA and that flag
7265 * to allow us to deauth frames to that bad station.
7266 *
7267 * For now allow all To DS data frames through.
7268 */
7269 /* load the IEEE 802.11 frame control field */
7270 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0),
7271 /* mask off frame type, version and DS status */
7272 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03),
7273 /* accept frame if version 0, type 2 and To DS, fall through otherwise
7274 */
7275 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0),
7276
7277 #if 0
7278 /*
7279 * drop non-data frames
7280 */
7281 /* load the lower byte of the frame control field */
7282 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
7283 /* mask off QoS bit */
7284 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c),
7285 /* drop non-data frames */
7286 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL),
7287 #endif
7288 /* load the upper byte of the frame control field */
7289 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1),
7290 /* mask off toDS/fromDS */
7291 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03),
7292 /* accept WDS frames */
7293 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0),
7294
7295 /*
7296 * add header length to index
7297 */
7298 /* load the lower byte of the frame control field */
7299 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
7300 /* mask off QoS bit */
7301 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80),
7302 /* right shift it by 6 to give 0 or 2 */
7303 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6),
7304 /* add data frame header length */
7305 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24),
7306 /* add index, was start of 802.11 header */
7307 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0),
7308 /* move to index, now start of LL header */
7309 BPF_STMT(BPF_MISC | BPF_TAX, 0),
7310
7311 /*
7312 * Accept empty data frames, we use those for
7313 * polling activity.
7314 */
7315 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0),
7316 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0),
7317
7318 /*
7319 * Accept EAPOL frames
7320 */
7321 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0),
7322 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL),
7323 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4),
7324 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL),
7325
7326 /* keep these last two statements or change the code below */
7327 /* return 0 == "DROP" */
7328 BPF_STMT(BPF_RET | BPF_K, 0),
7329 /* return ~0 == "keep all" */
7330 BPF_STMT(BPF_RET | BPF_K, ~0),
7331 };
7332
7333 static struct sock_fprog msock_filter = {
7334 .len = ARRAY_SIZE(msock_filter_insns),
7335 .filter = msock_filter_insns,
7336 };
7337
7338
7339 static int add_monitor_filter(int s)
7340 {
7341 int idx;
7342
7343 /* rewrite all PASS/FAIL jump offsets */
7344 for (idx = 0; idx < msock_filter.len; idx++) {
7345 struct sock_filter *insn = &msock_filter_insns[idx];
7346
7347 if (BPF_CLASS(insn->code) == BPF_JMP) {
7348 if (insn->code == (BPF_JMP|BPF_JA)) {
7349 if (insn->k == PASS)
7350 insn->k = msock_filter.len - idx - 2;
7351 else if (insn->k == FAIL)
7352 insn->k = msock_filter.len - idx - 3;
7353 }
7354
7355 if (insn->jt == PASS)
7356 insn->jt = msock_filter.len - idx - 2;
7357 else if (insn->jt == FAIL)
7358 insn->jt = msock_filter.len - idx - 3;
7359
7360 if (insn->jf == PASS)
7361 insn->jf = msock_filter.len - idx - 2;
7362 else if (insn->jf == FAIL)
7363 insn->jf = msock_filter.len - idx - 3;
7364 }
7365 }
7366
7367 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER,
7368 &msock_filter, sizeof(msock_filter))) {
7369 wpa_printf(MSG_ERROR, "nl80211: setsockopt(SO_ATTACH_FILTER) failed: %s",
7370 strerror(errno));
7371 return -1;
7372 }
7373
7374 return 0;
7375 }
7376
7377
7378 static void nl80211_remove_monitor_interface(
7379 struct wpa_driver_nl80211_data *drv)
7380 {
7381 drv->monitor_refcount--;
7382 if (drv->monitor_refcount > 0)
7383 return;
7384
7385 if (drv->monitor_ifidx >= 0) {
7386 nl80211_remove_iface(drv, drv->monitor_ifidx);
7387 drv->monitor_ifidx = -1;
7388 }
7389 if (drv->monitor_sock >= 0) {
7390 eloop_unregister_read_sock(drv->monitor_sock);
7391 close(drv->monitor_sock);
7392 drv->monitor_sock = -1;
7393 }
7394 }
7395
7396
7397 static int
7398 nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv)
7399 {
7400 char buf[IFNAMSIZ];
7401 struct sockaddr_ll ll;
7402 int optval;
7403 socklen_t optlen;
7404
7405 if (drv->monitor_ifidx >= 0) {
7406 drv->monitor_refcount++;
7407 return 0;
7408 }
7409
7410 if (os_strncmp(drv->first_bss.ifname, "p2p-", 4) == 0) {
7411 /*
7412 * P2P interface name is of the format p2p-%s-%d. For monitor
7413 * interface name corresponding to P2P GO, replace "p2p-" with
7414 * "mon-" to retain the same interface name length and to
7415 * indicate that it is a monitor interface.
7416 */
7417 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss.ifname + 4);
7418 } else {
7419 /* Non-P2P interface with AP functionality. */
7420 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss.ifname);
7421 }
7422
7423 buf[IFNAMSIZ - 1] = '\0';
7424
7425 drv->monitor_ifidx =
7426 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL,
7427 0, NULL, NULL);
7428
7429 if (drv->monitor_ifidx == -EOPNOTSUPP) {
7430 /*
7431 * This is backward compatibility for a few versions of
7432 * the kernel only that didn't advertise the right
7433 * attributes for the only driver that then supported
7434 * AP mode w/o monitor -- ath6kl.
7435 */
7436 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support "
7437 "monitor interface type - try to run without it");
7438 drv->device_ap_sme = 1;
7439 }
7440
7441 if (drv->monitor_ifidx < 0)
7442 return -1;
7443
7444 if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1))
7445 goto error;
7446
7447 memset(&ll, 0, sizeof(ll));
7448 ll.sll_family = AF_PACKET;
7449 ll.sll_ifindex = drv->monitor_ifidx;
7450 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
7451 if (drv->monitor_sock < 0) {
7452 wpa_printf(MSG_ERROR, "nl80211: socket[PF_PACKET,SOCK_RAW] failed: %s",
7453 strerror(errno));
7454 goto error;
7455 }
7456
7457 if (add_monitor_filter(drv->monitor_sock)) {
7458 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor "
7459 "interface; do filtering in user space");
7460 /* This works, but will cost in performance. */
7461 }
7462
7463 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) {
7464 wpa_printf(MSG_ERROR, "nl80211: monitor socket bind failed: %s",
7465 strerror(errno));
7466 goto error;
7467 }
7468
7469 optlen = sizeof(optval);
7470 optval = 20;
7471 if (setsockopt
7472 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) {
7473 wpa_printf(MSG_ERROR, "nl80211: Failed to set socket priority: %s",
7474 strerror(errno));
7475 goto error;
7476 }
7477
7478 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read,
7479 drv, NULL)) {
7480 wpa_printf(MSG_INFO, "nl80211: Could not register monitor read socket");
7481 goto error;
7482 }
7483
7484 return 0;
7485 error:
7486 nl80211_remove_monitor_interface(drv);
7487 return -1;
7488 }
7489
7490
7491 static int nl80211_setup_ap(struct i802_bss *bss)
7492 {
7493 struct wpa_driver_nl80211_data *drv = bss->drv;
7494
7495 wpa_printf(MSG_DEBUG, "nl80211: Setup AP - device_ap_sme=%d "
7496 "use_monitor=%d", drv->device_ap_sme, drv->use_monitor);
7497
7498 /*
7499 * Disable Probe Request reporting unless we need it in this way for
7500 * devices that include the AP SME, in the other case (unless using
7501 * monitor iface) we'll get it through the nl_mgmt socket instead.
7502 */
7503 if (!drv->device_ap_sme)
7504 wpa_driver_nl80211_probe_req_report(bss, 0);
7505
7506 if (!drv->device_ap_sme && !drv->use_monitor)
7507 if (nl80211_mgmt_subscribe_ap(bss))
7508 return -1;
7509
7510 if (drv->device_ap_sme && !drv->use_monitor)
7511 if (nl80211_mgmt_subscribe_ap_dev_sme(bss))
7512 return -1;
7513
7514 if (!drv->device_ap_sme && drv->use_monitor &&
7515 nl80211_create_monitor_interface(drv) &&
7516 !drv->device_ap_sme)
7517 return -1;
7518
7519 if (drv->device_ap_sme &&
7520 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) {
7521 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable "
7522 "Probe Request frame reporting in AP mode");
7523 /* Try to survive without this */
7524 }
7525
7526 return 0;
7527 }
7528
7529
7530 static void nl80211_teardown_ap(struct i802_bss *bss)
7531 {
7532 struct wpa_driver_nl80211_data *drv = bss->drv;
7533
7534 if (drv->device_ap_sme) {
7535 wpa_driver_nl80211_probe_req_report(bss, 0);
7536 if (!drv->use_monitor)
7537 nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)");
7538 } else if (drv->use_monitor)
7539 nl80211_remove_monitor_interface(drv);
7540 else
7541 nl80211_mgmt_unsubscribe(bss, "AP teardown");
7542
7543 bss->beacon_set = 0;
7544 }
7545
7546
7547 static int nl80211_send_eapol_data(struct i802_bss *bss,
7548 const u8 *addr, const u8 *data,
7549 size_t data_len)
7550 {
7551 struct sockaddr_ll ll;
7552 int ret;
7553
7554 if (bss->drv->eapol_tx_sock < 0) {
7555 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL");
7556 return -1;
7557 }
7558
7559 os_memset(&ll, 0, sizeof(ll));
7560 ll.sll_family = AF_PACKET;
7561 ll.sll_ifindex = bss->ifindex;
7562 ll.sll_protocol = htons(ETH_P_PAE);
7563 ll.sll_halen = ETH_ALEN;
7564 os_memcpy(ll.sll_addr, addr, ETH_ALEN);
7565 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0,
7566 (struct sockaddr *) &ll, sizeof(ll));
7567 if (ret < 0)
7568 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s",
7569 strerror(errno));
7570
7571 return ret;
7572 }
7573
7574
7575 static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
7576
7577 static int wpa_driver_nl80211_hapd_send_eapol(
7578 void *priv, const u8 *addr, const u8 *data,
7579 size_t data_len, int encrypt, const u8 *own_addr, u32 flags)
7580 {
7581 struct i802_bss *bss = priv;
7582 struct wpa_driver_nl80211_data *drv = bss->drv;
7583 struct ieee80211_hdr *hdr;
7584 size_t len;
7585 u8 *pos;
7586 int res;
7587 int qos = flags & WPA_STA_WMM;
7588
7589 if (drv->device_ap_sme || !drv->use_monitor)
7590 return nl80211_send_eapol_data(bss, addr, data, data_len);
7591
7592 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 +
7593 data_len;
7594 hdr = os_zalloc(len);
7595 if (hdr == NULL) {
7596 wpa_printf(MSG_INFO, "nl80211: Failed to allocate EAPOL buffer(len=%lu)",
7597 (unsigned long) len);
7598 return -1;
7599 }
7600
7601 hdr->frame_control =
7602 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA);
7603 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS);
7604 if (encrypt)
7605 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP);
7606 if (qos) {
7607 hdr->frame_control |=
7608 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4);
7609 }
7610
7611 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN);
7612 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
7613 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
7614 pos = (u8 *) (hdr + 1);
7615
7616 if (qos) {
7617 /* Set highest priority in QoS header */
7618 pos[0] = 7;
7619 pos[1] = 0;
7620 pos += 2;
7621 }
7622
7623 memcpy(pos, rfc1042_header, sizeof(rfc1042_header));
7624 pos += sizeof(rfc1042_header);
7625 WPA_PUT_BE16(pos, ETH_P_PAE);
7626 pos += 2;
7627 memcpy(pos, data, data_len);
7628
7629 res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0,
7630 0, 0, 0, 0);
7631 if (res < 0) {
7632 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - "
7633 "failed: %d (%s)",
7634 (unsigned long) len, errno, strerror(errno));
7635 }
7636 os_free(hdr);
7637
7638 return res;
7639 }
7640
7641
7642 static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr,
7643 int total_flags,
7644 int flags_or, int flags_and)
7645 {
7646 struct i802_bss *bss = priv;
7647 struct wpa_driver_nl80211_data *drv = bss->drv;
7648 struct nl_msg *msg;
7649 struct nlattr *flags;
7650 struct nl80211_sta_flag_update upd;
7651
7652 msg = nlmsg_alloc();
7653 if (!msg)
7654 return -ENOMEM;
7655
7656 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
7657
7658 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
7659 if_nametoindex(bss->ifname));
7660 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7661
7662 /*
7663 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This
7664 * can be removed eventually.
7665 */
7666 flags = nla_nest_start(msg, NL80211_ATTR_STA_FLAGS);
7667 if (!flags)
7668 goto nla_put_failure;
7669 if (total_flags & WPA_STA_AUTHORIZED)
7670 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_AUTHORIZED);
7671
7672 if (total_flags & WPA_STA_WMM)
7673 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_WME);
7674
7675 if (total_flags & WPA_STA_SHORT_PREAMBLE)
7676 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_SHORT_PREAMBLE);
7677
7678 if (total_flags & WPA_STA_MFP)
7679 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_MFP);
7680
7681 if (total_flags & WPA_STA_TDLS_PEER)
7682 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_TDLS_PEER);
7683
7684 nla_nest_end(msg, flags);
7685
7686 os_memset(&upd, 0, sizeof(upd));
7687 upd.mask = sta_flags_nl80211(flags_or | ~flags_and);
7688 upd.set = sta_flags_nl80211(flags_or);
7689 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
7690
7691 return send_and_recv_msgs(drv, msg, NULL, NULL);
7692 nla_put_failure:
7693 nlmsg_free(msg);
7694 return -ENOBUFS;
7695 }
7696
7697
7698 static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv,
7699 struct wpa_driver_associate_params *params)
7700 {
7701 enum nl80211_iftype nlmode, old_mode;
7702 struct hostapd_freq_params freq = {
7703 .freq = params->freq,
7704 };
7705
7706 if (params->p2p) {
7707 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P "
7708 "group (GO)");
7709 nlmode = NL80211_IFTYPE_P2P_GO;
7710 } else
7711 nlmode = NL80211_IFTYPE_AP;
7712
7713 old_mode = drv->nlmode;
7714 if (wpa_driver_nl80211_set_mode(&drv->first_bss, nlmode)) {
7715 nl80211_remove_monitor_interface(drv);
7716 return -1;
7717 }
7718
7719 if (wpa_driver_nl80211_set_freq(&drv->first_bss, &freq)) {
7720 if (old_mode != nlmode)
7721 wpa_driver_nl80211_set_mode(&drv->first_bss, old_mode);
7722 nl80211_remove_monitor_interface(drv);
7723 return -1;
7724 }
7725
7726 return 0;
7727 }
7728
7729
7730 static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv)
7731 {
7732 struct nl_msg *msg;
7733 int ret = -1;
7734
7735 msg = nlmsg_alloc();
7736 if (!msg)
7737 return -1;
7738
7739 nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS);
7740 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
7741 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7742 msg = NULL;
7743 if (ret) {
7744 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d "
7745 "(%s)", ret, strerror(-ret));
7746 goto nla_put_failure;
7747 }
7748
7749 ret = 0;
7750 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully");
7751
7752 nla_put_failure:
7753 if (wpa_driver_nl80211_set_mode(&drv->first_bss,
7754 NL80211_IFTYPE_STATION)) {
7755 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into "
7756 "station mode");
7757 }
7758
7759 nlmsg_free(msg);
7760 return ret;
7761 }
7762
7763
7764 static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv,
7765 struct wpa_driver_associate_params *params)
7766 {
7767 struct nl_msg *msg;
7768 int ret = -1;
7769 int count = 0;
7770
7771 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex);
7772
7773 if (wpa_driver_nl80211_set_mode(&drv->first_bss,
7774 NL80211_IFTYPE_ADHOC)) {
7775 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into "
7776 "IBSS mode");
7777 return -1;
7778 }
7779
7780 retry:
7781 msg = nlmsg_alloc();
7782 if (!msg)
7783 return -1;
7784
7785 nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS);
7786 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
7787
7788 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid))
7789 goto nla_put_failure;
7790
7791 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
7792 params->ssid, params->ssid_len);
7793 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
7794 params->ssid);
7795 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
7796 drv->ssid_len = params->ssid_len;
7797
7798 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
7799 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
7800
7801 ret = nl80211_set_conn_keys(params, msg);
7802 if (ret)
7803 goto nla_put_failure;
7804
7805 if (params->bssid && params->fixed_bssid) {
7806 wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR,
7807 MAC2STR(params->bssid));
7808 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
7809 }
7810
7811 if (params->key_mgmt_suite == KEY_MGMT_802_1X ||
7812 params->key_mgmt_suite == KEY_MGMT_PSK ||
7813 params->key_mgmt_suite == KEY_MGMT_802_1X_SHA256 ||
7814 params->key_mgmt_suite == KEY_MGMT_PSK_SHA256) {
7815 wpa_printf(MSG_DEBUG, " * control port");
7816 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
7817 }
7818
7819 if (params->wpa_ie) {
7820 wpa_hexdump(MSG_DEBUG,
7821 " * Extra IEs for Beacon/Probe Response frames",
7822 params->wpa_ie, params->wpa_ie_len);
7823 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
7824 params->wpa_ie);
7825 }
7826
7827 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7828 msg = NULL;
7829 if (ret) {
7830 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)",
7831 ret, strerror(-ret));
7832 count++;
7833 if (ret == -EALREADY && count == 1) {
7834 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after "
7835 "forced leave");
7836 nl80211_leave_ibss(drv);
7837 nlmsg_free(msg);
7838 goto retry;
7839 }
7840
7841 goto nla_put_failure;
7842 }
7843 ret = 0;
7844 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully");
7845
7846 nla_put_failure:
7847 nlmsg_free(msg);
7848 return ret;
7849 }
7850
7851
7852 static int wpa_driver_nl80211_try_connect(
7853 struct wpa_driver_nl80211_data *drv,
7854 struct wpa_driver_associate_params *params)
7855 {
7856 struct nl_msg *msg;
7857 enum nl80211_auth_type type;
7858 int ret = 0;
7859 int algs;
7860
7861 msg = nlmsg_alloc();
7862 if (!msg)
7863 return -1;
7864
7865 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex);
7866 nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT);
7867
7868 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
7869 if (params->bssid) {
7870 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
7871 MAC2STR(params->bssid));
7872 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
7873 }
7874 if (params->freq) {
7875 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
7876 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
7877 drv->assoc_freq = params->freq;
7878 } else
7879 drv->assoc_freq = 0;
7880 if (params->bg_scan_period >= 0) {
7881 wpa_printf(MSG_DEBUG, " * bg scan period=%d",
7882 params->bg_scan_period);
7883 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD,
7884 params->bg_scan_period);
7885 }
7886 if (params->ssid) {
7887 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
7888 params->ssid, params->ssid_len);
7889 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
7890 params->ssid);
7891 if (params->ssid_len > sizeof(drv->ssid))
7892 goto nla_put_failure;
7893 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
7894 drv->ssid_len = params->ssid_len;
7895 }
7896 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
7897 if (params->wpa_ie)
7898 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
7899 params->wpa_ie);
7900
7901 algs = 0;
7902 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
7903 algs++;
7904 if (params->auth_alg & WPA_AUTH_ALG_SHARED)
7905 algs++;
7906 if (params->auth_alg & WPA_AUTH_ALG_LEAP)
7907 algs++;
7908 if (algs > 1) {
7909 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic "
7910 "selection");
7911 goto skip_auth_type;
7912 }
7913
7914 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
7915 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
7916 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
7917 type = NL80211_AUTHTYPE_SHARED_KEY;
7918 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
7919 type = NL80211_AUTHTYPE_NETWORK_EAP;
7920 else if (params->auth_alg & WPA_AUTH_ALG_FT)
7921 type = NL80211_AUTHTYPE_FT;
7922 else
7923 goto nla_put_failure;
7924
7925 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
7926 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
7927
7928 skip_auth_type:
7929 if (params->wpa_proto) {
7930 enum nl80211_wpa_versions ver = 0;
7931
7932 if (params->wpa_proto & WPA_PROTO_WPA)
7933 ver |= NL80211_WPA_VERSION_1;
7934 if (params->wpa_proto & WPA_PROTO_RSN)
7935 ver |= NL80211_WPA_VERSION_2;
7936
7937 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver);
7938 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
7939 }
7940
7941 if (params->pairwise_suite != CIPHER_NONE) {
7942 int cipher;
7943
7944 switch (params->pairwise_suite) {
7945 case CIPHER_SMS4:
7946 cipher = WLAN_CIPHER_SUITE_SMS4;
7947 break;
7948 case CIPHER_WEP40:
7949 cipher = WLAN_CIPHER_SUITE_WEP40;
7950 break;
7951 case CIPHER_WEP104:
7952 cipher = WLAN_CIPHER_SUITE_WEP104;
7953 break;
7954 case CIPHER_CCMP:
7955 cipher = WLAN_CIPHER_SUITE_CCMP;
7956 break;
7957 case CIPHER_GCMP:
7958 cipher = WLAN_CIPHER_SUITE_GCMP;
7959 break;
7960 case CIPHER_TKIP:
7961 default:
7962 cipher = WLAN_CIPHER_SUITE_TKIP;
7963 break;
7964 }
7965 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
7966 }
7967
7968 if (params->group_suite != CIPHER_NONE) {
7969 int cipher;
7970
7971 switch (params->group_suite) {
7972 case CIPHER_SMS4:
7973 cipher = WLAN_CIPHER_SUITE_SMS4;
7974 break;
7975 case CIPHER_WEP40:
7976 cipher = WLAN_CIPHER_SUITE_WEP40;
7977 break;
7978 case CIPHER_WEP104:
7979 cipher = WLAN_CIPHER_SUITE_WEP104;
7980 break;
7981 case CIPHER_CCMP:
7982 cipher = WLAN_CIPHER_SUITE_CCMP;
7983 break;
7984 case CIPHER_GCMP:
7985 cipher = WLAN_CIPHER_SUITE_GCMP;
7986 break;
7987 case CIPHER_TKIP:
7988 default:
7989 cipher = WLAN_CIPHER_SUITE_TKIP;
7990 break;
7991 }
7992 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
7993 }
7994
7995 if (params->key_mgmt_suite == KEY_MGMT_802_1X ||
7996 params->key_mgmt_suite == KEY_MGMT_PSK ||
7997 params->key_mgmt_suite == KEY_MGMT_FT_802_1X ||
7998 params->key_mgmt_suite == KEY_MGMT_FT_PSK ||
7999 params->key_mgmt_suite == KEY_MGMT_CCKM) {
8000 int mgmt = WLAN_AKM_SUITE_PSK;
8001
8002 switch (params->key_mgmt_suite) {
8003 case KEY_MGMT_CCKM:
8004 mgmt = WLAN_AKM_SUITE_CCKM;
8005 break;
8006 case KEY_MGMT_802_1X:
8007 mgmt = WLAN_AKM_SUITE_8021X;
8008 break;
8009 case KEY_MGMT_FT_802_1X:
8010 mgmt = WLAN_AKM_SUITE_FT_8021X;
8011 break;
8012 case KEY_MGMT_FT_PSK:
8013 mgmt = WLAN_AKM_SUITE_FT_PSK;
8014 break;
8015 case KEY_MGMT_PSK:
8016 default:
8017 mgmt = WLAN_AKM_SUITE_PSK;
8018 break;
8019 }
8020 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt);
8021 }
8022
8023 #ifdef CONFIG_IEEE80211W
8024 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED)
8025 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED);
8026 #endif /* CONFIG_IEEE80211W */
8027
8028 if (params->disable_ht)
8029 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT);
8030
8031 if (params->htcaps && params->htcaps_mask) {
8032 int sz = sizeof(struct ieee80211_ht_capabilities);
8033 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps);
8034 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz,
8035 params->htcaps_mask);
8036 }
8037
8038 #ifdef CONFIG_VHT_OVERRIDES
8039 if (params->disable_vht) {
8040 wpa_printf(MSG_DEBUG, " * VHT disabled");
8041 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT);
8042 }
8043
8044 if (params->vhtcaps && params->vhtcaps_mask) {
8045 int sz = sizeof(struct ieee80211_vht_capabilities);
8046 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps);
8047 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz,
8048 params->vhtcaps_mask);
8049 }
8050 #endif /* CONFIG_VHT_OVERRIDES */
8051
8052 ret = nl80211_set_conn_keys(params, msg);
8053 if (ret)
8054 goto nla_put_failure;
8055
8056 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8057 msg = NULL;
8058 if (ret) {
8059 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d "
8060 "(%s)", ret, strerror(-ret));
8061 goto nla_put_failure;
8062 }
8063 ret = 0;
8064 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully");
8065
8066 nla_put_failure:
8067 nlmsg_free(msg);
8068 return ret;
8069
8070 }
8071
8072
8073 static int wpa_driver_nl80211_connect(
8074 struct wpa_driver_nl80211_data *drv,
8075 struct wpa_driver_associate_params *params)
8076 {
8077 int ret = wpa_driver_nl80211_try_connect(drv, params);
8078 if (ret == -EALREADY) {
8079 /*
8080 * cfg80211 does not currently accept new connections if
8081 * we are already connected. As a workaround, force
8082 * disconnection and try again.
8083 */
8084 wpa_printf(MSG_DEBUG, "nl80211: Explicitly "
8085 "disconnecting before reassociation "
8086 "attempt");
8087 if (wpa_driver_nl80211_disconnect(
8088 drv, WLAN_REASON_PREV_AUTH_NOT_VALID))
8089 return -1;
8090 ret = wpa_driver_nl80211_try_connect(drv, params);
8091 }
8092 return ret;
8093 }
8094
8095
8096 static int wpa_driver_nl80211_associate(
8097 void *priv, struct wpa_driver_associate_params *params)
8098 {
8099 struct i802_bss *bss = priv;
8100 struct wpa_driver_nl80211_data *drv = bss->drv;
8101 int ret = -1;
8102 struct nl_msg *msg;
8103
8104 if (params->mode == IEEE80211_MODE_AP)
8105 return wpa_driver_nl80211_ap(drv, params);
8106
8107 if (params->mode == IEEE80211_MODE_IBSS)
8108 return wpa_driver_nl80211_ibss(drv, params);
8109
8110 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) {
8111 enum nl80211_iftype nlmode = params->p2p ?
8112 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
8113
8114 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0)
8115 return -1;
8116 return wpa_driver_nl80211_connect(drv, params);
8117 }
8118
8119 nl80211_mark_disconnected(drv);
8120
8121 msg = nlmsg_alloc();
8122 if (!msg)
8123 return -1;
8124
8125 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)",
8126 drv->ifindex);
8127 nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE);
8128
8129 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8130 if (params->bssid) {
8131 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
8132 MAC2STR(params->bssid));
8133 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
8134 }
8135 if (params->freq) {
8136 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
8137 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
8138 drv->assoc_freq = params->freq;
8139 } else
8140 drv->assoc_freq = 0;
8141 if (params->bg_scan_period >= 0) {
8142 wpa_printf(MSG_DEBUG, " * bg scan period=%d",
8143 params->bg_scan_period);
8144 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD,
8145 params->bg_scan_period);
8146 }
8147 if (params->ssid) {
8148 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
8149 params->ssid, params->ssid_len);
8150 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
8151 params->ssid);
8152 if (params->ssid_len > sizeof(drv->ssid))
8153 goto nla_put_failure;
8154 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
8155 drv->ssid_len = params->ssid_len;
8156 }
8157 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
8158 if (params->wpa_ie)
8159 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
8160 params->wpa_ie);
8161
8162 if (params->pairwise_suite != CIPHER_NONE) {
8163 int cipher;
8164
8165 switch (params->pairwise_suite) {
8166 case CIPHER_WEP40:
8167 cipher = WLAN_CIPHER_SUITE_WEP40;
8168 break;
8169 case CIPHER_WEP104:
8170 cipher = WLAN_CIPHER_SUITE_WEP104;
8171 break;
8172 case CIPHER_CCMP:
8173 cipher = WLAN_CIPHER_SUITE_CCMP;
8174 break;
8175 case CIPHER_GCMP:
8176 cipher = WLAN_CIPHER_SUITE_GCMP;
8177 break;
8178 case CIPHER_TKIP:
8179 default:
8180 cipher = WLAN_CIPHER_SUITE_TKIP;
8181 break;
8182 }
8183 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher);
8184 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
8185 }
8186
8187 if (params->group_suite != CIPHER_NONE) {
8188 int cipher;
8189
8190 switch (params->group_suite) {
8191 case CIPHER_WEP40:
8192 cipher = WLAN_CIPHER_SUITE_WEP40;
8193 break;
8194 case CIPHER_WEP104:
8195 cipher = WLAN_CIPHER_SUITE_WEP104;
8196 break;
8197 case CIPHER_CCMP:
8198 cipher = WLAN_CIPHER_SUITE_CCMP;
8199 break;
8200 case CIPHER_GCMP:
8201 cipher = WLAN_CIPHER_SUITE_GCMP;
8202 break;
8203 case CIPHER_TKIP:
8204 default:
8205 cipher = WLAN_CIPHER_SUITE_TKIP;
8206 break;
8207 }
8208 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher);
8209 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
8210 }
8211
8212 #ifdef CONFIG_IEEE80211W
8213 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED)
8214 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED);
8215 #endif /* CONFIG_IEEE80211W */
8216
8217 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
8218
8219 if (params->prev_bssid) {
8220 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR,
8221 MAC2STR(params->prev_bssid));
8222 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN,
8223 params->prev_bssid);
8224 }
8225
8226 if (params->disable_ht)
8227 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT);
8228
8229 if (params->htcaps && params->htcaps_mask) {
8230 int sz = sizeof(struct ieee80211_ht_capabilities);
8231 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps);
8232 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz,
8233 params->htcaps_mask);
8234 }
8235
8236 #ifdef CONFIG_VHT_OVERRIDES
8237 if (params->disable_vht) {
8238 wpa_printf(MSG_DEBUG, " * VHT disabled");
8239 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT);
8240 }
8241
8242 if (params->vhtcaps && params->vhtcaps_mask) {
8243 int sz = sizeof(struct ieee80211_vht_capabilities);
8244 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps);
8245 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz,
8246 params->vhtcaps_mask);
8247 }
8248 #endif /* CONFIG_VHT_OVERRIDES */
8249
8250 if (params->p2p)
8251 wpa_printf(MSG_DEBUG, " * P2P group");
8252
8253 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8254 msg = NULL;
8255 if (ret) {
8256 wpa_dbg(drv->ctx, MSG_DEBUG,
8257 "nl80211: MLME command failed (assoc): ret=%d (%s)",
8258 ret, strerror(-ret));
8259 nl80211_dump_scan(drv);
8260 goto nla_put_failure;
8261 }
8262 ret = 0;
8263 wpa_printf(MSG_DEBUG, "nl80211: Association request send "
8264 "successfully");
8265
8266 nla_put_failure:
8267 nlmsg_free(msg);
8268 return ret;
8269 }
8270
8271
8272 static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv,
8273 int ifindex, enum nl80211_iftype mode)
8274 {
8275 struct nl_msg *msg;
8276 int ret = -ENOBUFS;
8277
8278 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)",
8279 ifindex, mode, nl80211_iftype_str(mode));
8280
8281 msg = nlmsg_alloc();
8282 if (!msg)
8283 return -ENOMEM;
8284
8285 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE);
8286 if (nl80211_set_iface_id(msg, &drv->first_bss) < 0)
8287 goto nla_put_failure;
8288 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode);
8289
8290 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8291 msg = NULL;
8292 if (!ret)
8293 return 0;
8294 nla_put_failure:
8295 nlmsg_free(msg);
8296 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:"
8297 " %d (%s)", ifindex, mode, ret, strerror(-ret));
8298 return ret;
8299 }
8300
8301
8302 static int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
8303 enum nl80211_iftype nlmode)
8304 {
8305 struct wpa_driver_nl80211_data *drv = bss->drv;
8306 int ret = -1;
8307 int i;
8308 int was_ap = is_ap_interface(drv->nlmode);
8309 int res;
8310
8311 res = nl80211_set_mode(drv, drv->ifindex, nlmode);
8312 if (res && nlmode == nl80211_get_ifmode(bss))
8313 res = 0;
8314
8315 if (res == 0) {
8316 drv->nlmode = nlmode;
8317 ret = 0;
8318 goto done;
8319 }
8320
8321 if (res == -ENODEV)
8322 return -1;
8323
8324 if (nlmode == drv->nlmode) {
8325 wpa_printf(MSG_DEBUG, "nl80211: Interface already in "
8326 "requested mode - ignore error");
8327 ret = 0;
8328 goto done; /* Already in the requested mode */
8329 }
8330
8331 /* mac80211 doesn't allow mode changes while the device is up, so
8332 * take the device down, try to set the mode again, and bring the
8333 * device back up.
8334 */
8335 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting "
8336 "interface down");
8337 for (i = 0; i < 10; i++) {
8338 res = i802_set_iface_flags(bss, 0);
8339 if (res == -EACCES || res == -ENODEV)
8340 break;
8341 if (res == 0) {
8342 /* Try to set the mode again while the interface is
8343 * down */
8344 ret = nl80211_set_mode(drv, drv->ifindex, nlmode);
8345 if (ret == -EACCES)
8346 break;
8347 res = i802_set_iface_flags(bss, 1);
8348 if (res && !ret)
8349 ret = -1;
8350 else if (ret != -EBUSY)
8351 break;
8352 } else
8353 wpa_printf(MSG_DEBUG, "nl80211: Failed to set "
8354 "interface down");
8355 os_sleep(0, 100000);
8356 }
8357
8358 if (!ret) {
8359 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while "
8360 "interface is down");
8361 drv->nlmode = nlmode;
8362 drv->ignore_if_down_event = 1;
8363 }
8364
8365 done:
8366 if (ret) {
8367 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d "
8368 "from %d failed", nlmode, drv->nlmode);
8369 return ret;
8370 }
8371
8372 if (is_p2p_net_interface(nlmode))
8373 nl80211_disable_11b_rates(drv, drv->ifindex, 1);
8374 else if (drv->disabled_11b_rates)
8375 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
8376
8377 if (is_ap_interface(nlmode)) {
8378 nl80211_mgmt_unsubscribe(bss, "start AP");
8379 /* Setup additional AP mode functionality if needed */
8380 if (nl80211_setup_ap(bss))
8381 return -1;
8382 } else if (was_ap) {
8383 /* Remove additional AP mode functionality */
8384 nl80211_teardown_ap(bss);
8385 } else {
8386 nl80211_mgmt_unsubscribe(bss, "mode change");
8387 }
8388
8389 if (!bss->in_deinit && !is_ap_interface(nlmode) &&
8390 nl80211_mgmt_subscribe_non_ap(bss) < 0)
8391 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action "
8392 "frame processing - ignore for now");
8393
8394 return 0;
8395 }
8396
8397
8398 static int wpa_driver_nl80211_get_capa(void *priv,
8399 struct wpa_driver_capa *capa)
8400 {
8401 struct i802_bss *bss = priv;
8402 struct wpa_driver_nl80211_data *drv = bss->drv;
8403 if (!drv->has_capability)
8404 return -1;
8405 os_memcpy(capa, &drv->capa, sizeof(*capa));
8406 if (drv->extended_capa && drv->extended_capa_mask) {
8407 capa->extended_capa = drv->extended_capa;
8408 capa->extended_capa_mask = drv->extended_capa_mask;
8409 capa->extended_capa_len = drv->extended_capa_len;
8410 }
8411
8412 if ((capa->flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
8413 !drv->allow_p2p_device) {
8414 wpa_printf(MSG_DEBUG, "nl80211: Do not indicate P2P_DEVICE support (p2p_device=1 driver param not specified)");
8415 capa->flags &= ~WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE;
8416 }
8417
8418 return 0;
8419 }
8420
8421
8422 static int wpa_driver_nl80211_set_operstate(void *priv, int state)
8423 {
8424 struct i802_bss *bss = priv;
8425 struct wpa_driver_nl80211_data *drv = bss->drv;
8426
8427 wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)",
8428 __func__, drv->operstate, state, state ? "UP" : "DORMANT");
8429 drv->operstate = state;
8430 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1,
8431 state ? IF_OPER_UP : IF_OPER_DORMANT);
8432 }
8433
8434
8435 static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized)
8436 {
8437 struct i802_bss *bss = priv;
8438 struct wpa_driver_nl80211_data *drv = bss->drv;
8439 struct nl_msg *msg;
8440 struct nl80211_sta_flag_update upd;
8441
8442 wpa_printf(MSG_DEBUG, "nl80211: Set supplicant port %sauthorized for "
8443 MACSTR, authorized ? "" : "un", MAC2STR(drv->bssid));
8444
8445 msg = nlmsg_alloc();
8446 if (!msg)
8447 return -ENOMEM;
8448
8449 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
8450
8451 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
8452 if_nametoindex(bss->ifname));
8453 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
8454
8455 os_memset(&upd, 0, sizeof(upd));
8456 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED);
8457 if (authorized)
8458 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED);
8459 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
8460
8461 return send_and_recv_msgs(drv, msg, NULL, NULL);
8462 nla_put_failure:
8463 nlmsg_free(msg);
8464 return -ENOBUFS;
8465 }
8466
8467
8468 /* Set kernel driver on given frequency (MHz) */
8469 static int i802_set_freq(void *priv, struct hostapd_freq_params *freq)
8470 {
8471 struct i802_bss *bss = priv;
8472 return wpa_driver_nl80211_set_freq(bss, freq);
8473 }
8474
8475
8476 #if defined(HOSTAPD) || defined(CONFIG_AP)
8477
8478 static inline int min_int(int a, int b)
8479 {
8480 if (a < b)
8481 return a;
8482 return b;
8483 }
8484
8485
8486 static int get_key_handler(struct nl_msg *msg, void *arg)
8487 {
8488 struct nlattr *tb[NL80211_ATTR_MAX + 1];
8489 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
8490
8491 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
8492 genlmsg_attrlen(gnlh, 0), NULL);
8493
8494 /*
8495 * TODO: validate the key index and mac address!
8496 * Otherwise, there's a race condition as soon as
8497 * the kernel starts sending key notifications.
8498 */
8499
8500 if (tb[NL80211_ATTR_KEY_SEQ])
8501 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]),
8502 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6));
8503 return NL_SKIP;
8504 }
8505
8506
8507 static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
8508 int idx, u8 *seq)
8509 {
8510 struct i802_bss *bss = priv;
8511 struct wpa_driver_nl80211_data *drv = bss->drv;
8512 struct nl_msg *msg;
8513
8514 msg = nlmsg_alloc();
8515 if (!msg)
8516 return -ENOMEM;
8517
8518 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY);
8519
8520 if (addr)
8521 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
8522 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
8523 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
8524
8525 memset(seq, 0, 6);
8526
8527 return send_and_recv_msgs(drv, msg, get_key_handler, seq);
8528 nla_put_failure:
8529 nlmsg_free(msg);
8530 return -ENOBUFS;
8531 }
8532
8533
8534 static int i802_set_rts(void *priv, int rts)
8535 {
8536 struct i802_bss *bss = priv;
8537 struct wpa_driver_nl80211_data *drv = bss->drv;
8538 struct nl_msg *msg;
8539 int ret = -ENOBUFS;
8540 u32 val;
8541
8542 msg = nlmsg_alloc();
8543 if (!msg)
8544 return -ENOMEM;
8545
8546 if (rts >= 2347)
8547 val = (u32) -1;
8548 else
8549 val = rts;
8550
8551 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
8552 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8553 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val);
8554
8555 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8556 msg = NULL;
8557 if (!ret)
8558 return 0;
8559 nla_put_failure:
8560 nlmsg_free(msg);
8561 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: "
8562 "%d (%s)", rts, ret, strerror(-ret));
8563 return ret;
8564 }
8565
8566
8567 static int i802_set_frag(void *priv, int frag)
8568 {
8569 struct i802_bss *bss = priv;
8570 struct wpa_driver_nl80211_data *drv = bss->drv;
8571 struct nl_msg *msg;
8572 int ret = -ENOBUFS;
8573 u32 val;
8574
8575 msg = nlmsg_alloc();
8576 if (!msg)
8577 return -ENOMEM;
8578
8579 if (frag >= 2346)
8580 val = (u32) -1;
8581 else
8582 val = frag;
8583
8584 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
8585 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8586 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val);
8587
8588 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8589 msg = NULL;
8590 if (!ret)
8591 return 0;
8592 nla_put_failure:
8593 nlmsg_free(msg);
8594 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold "
8595 "%d: %d (%s)", frag, ret, strerror(-ret));
8596 return ret;
8597 }
8598
8599
8600 static int i802_flush(void *priv)
8601 {
8602 struct i802_bss *bss = priv;
8603 struct wpa_driver_nl80211_data *drv = bss->drv;
8604 struct nl_msg *msg;
8605 int res;
8606
8607 msg = nlmsg_alloc();
8608 if (!msg)
8609 return -1;
8610
8611 wpa_printf(MSG_DEBUG, "nl80211: flush -> DEL_STATION %s (all)",
8612 bss->ifname);
8613 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION);
8614
8615 /*
8616 * XXX: FIX! this needs to flush all VLANs too
8617 */
8618 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
8619 if_nametoindex(bss->ifname));
8620
8621 res = send_and_recv_msgs(drv, msg, NULL, NULL);
8622 if (res) {
8623 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d "
8624 "(%s)", res, strerror(-res));
8625 }
8626 return res;
8627 nla_put_failure:
8628 nlmsg_free(msg);
8629 return -ENOBUFS;
8630 }
8631
8632 #endif /* HOSTAPD || CONFIG_AP */
8633
8634
8635 static int get_sta_handler(struct nl_msg *msg, void *arg)
8636 {
8637 struct nlattr *tb[NL80211_ATTR_MAX + 1];
8638 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
8639 struct hostap_sta_driver_data *data = arg;
8640 struct nlattr *stats[NL80211_STA_INFO_MAX + 1];
8641 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
8642 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
8643 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
8644 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
8645 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
8646 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
8647 [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 },
8648 };
8649
8650 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
8651 genlmsg_attrlen(gnlh, 0), NULL);
8652
8653 /*
8654 * TODO: validate the interface and mac address!
8655 * Otherwise, there's a race condition as soon as
8656 * the kernel starts sending station notifications.
8657 */
8658
8659 if (!tb[NL80211_ATTR_STA_INFO]) {
8660 wpa_printf(MSG_DEBUG, "sta stats missing!");
8661 return NL_SKIP;
8662 }
8663 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX,
8664 tb[NL80211_ATTR_STA_INFO],
8665 stats_policy)) {
8666 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!");
8667 return NL_SKIP;
8668 }
8669
8670 if (stats[NL80211_STA_INFO_INACTIVE_TIME])
8671 data->inactive_msec =
8672 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]);
8673 if (stats[NL80211_STA_INFO_RX_BYTES])
8674 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]);
8675 if (stats[NL80211_STA_INFO_TX_BYTES])
8676 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]);
8677 if (stats[NL80211_STA_INFO_RX_PACKETS])
8678 data->rx_packets =
8679 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]);
8680 if (stats[NL80211_STA_INFO_TX_PACKETS])
8681 data->tx_packets =
8682 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]);
8683 if (stats[NL80211_STA_INFO_TX_FAILED])
8684 data->tx_retry_failed =
8685 nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]);
8686
8687 return NL_SKIP;
8688 }
8689
8690 static int i802_read_sta_data(struct i802_bss *bss,
8691 struct hostap_sta_driver_data *data,
8692 const u8 *addr)
8693 {
8694 struct wpa_driver_nl80211_data *drv = bss->drv;
8695 struct nl_msg *msg;
8696
8697 os_memset(data, 0, sizeof(*data));
8698 msg = nlmsg_alloc();
8699 if (!msg)
8700 return -ENOMEM;
8701
8702 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION);
8703
8704 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
8705 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
8706
8707 return send_and_recv_msgs(drv, msg, get_sta_handler, data);
8708 nla_put_failure:
8709 nlmsg_free(msg);
8710 return -ENOBUFS;
8711 }
8712
8713
8714 #if defined(HOSTAPD) || defined(CONFIG_AP)
8715
8716 static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
8717 int cw_min, int cw_max, int burst_time)
8718 {
8719 struct i802_bss *bss = priv;
8720 struct wpa_driver_nl80211_data *drv = bss->drv;
8721 struct nl_msg *msg;
8722 struct nlattr *txq, *params;
8723
8724 msg = nlmsg_alloc();
8725 if (!msg)
8726 return -1;
8727
8728 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
8729
8730 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
8731
8732 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS);
8733 if (!txq)
8734 goto nla_put_failure;
8735
8736 /* We are only sending parameters for a single TXQ at a time */
8737 params = nla_nest_start(msg, 1);
8738 if (!params)
8739 goto nla_put_failure;
8740
8741 switch (queue) {
8742 case 0:
8743 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO);
8744 break;
8745 case 1:
8746 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI);
8747 break;
8748 case 2:
8749 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE);
8750 break;
8751 case 3:
8752 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK);
8753 break;
8754 }
8755 /* Burst time is configured in units of 0.1 msec and TXOP parameter in
8756 * 32 usec, so need to convert the value here. */
8757 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32);
8758 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min);
8759 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max);
8760 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs);
8761
8762 nla_nest_end(msg, params);
8763
8764 nla_nest_end(msg, txq);
8765
8766 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
8767 return 0;
8768 msg = NULL;
8769 nla_put_failure:
8770 nlmsg_free(msg);
8771 return -1;
8772 }
8773
8774
8775 static int i802_set_sta_vlan(struct i802_bss *bss, const u8 *addr,
8776 const char *ifname, int vlan_id)
8777 {
8778 struct wpa_driver_nl80211_data *drv = bss->drv;
8779 struct nl_msg *msg;
8780 int ret = -ENOBUFS;
8781
8782 msg = nlmsg_alloc();
8783 if (!msg)
8784 return -ENOMEM;
8785
8786 wpa_printf(MSG_DEBUG, "nl80211: %s[%d]: set_sta_vlan(" MACSTR
8787 ", ifname=%s[%d], vlan_id=%d)",
8788 bss->ifname, if_nametoindex(bss->ifname),
8789 MAC2STR(addr), ifname, if_nametoindex(ifname), vlan_id);
8790 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
8791
8792 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
8793 if_nametoindex(bss->ifname));
8794 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
8795 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN,
8796 if_nametoindex(ifname));
8797
8798 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8799 msg = NULL;
8800 if (ret < 0) {
8801 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr="
8802 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)",
8803 MAC2STR(addr), ifname, vlan_id, ret,
8804 strerror(-ret));
8805 }
8806 nla_put_failure:
8807 nlmsg_free(msg);
8808 return ret;
8809 }
8810
8811
8812 static int i802_get_inact_sec(void *priv, const u8 *addr)
8813 {
8814 struct hostap_sta_driver_data data;
8815 int ret;
8816
8817 data.inactive_msec = (unsigned long) -1;
8818 ret = i802_read_sta_data(priv, &data, addr);
8819 if (ret || data.inactive_msec == (unsigned long) -1)
8820 return -1;
8821 return data.inactive_msec / 1000;
8822 }
8823
8824
8825 static int i802_sta_clear_stats(void *priv, const u8 *addr)
8826 {
8827 #if 0
8828 /* TODO */
8829 #endif
8830 return 0;
8831 }
8832
8833
8834 static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
8835 int reason)
8836 {
8837 struct i802_bss *bss = priv;
8838 struct wpa_driver_nl80211_data *drv = bss->drv;
8839 struct ieee80211_mgmt mgmt;
8840
8841 if (drv->device_ap_sme)
8842 return wpa_driver_nl80211_sta_remove(bss, addr);
8843
8844 memset(&mgmt, 0, sizeof(mgmt));
8845 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
8846 WLAN_FC_STYPE_DEAUTH);
8847 memcpy(mgmt.da, addr, ETH_ALEN);
8848 memcpy(mgmt.sa, own_addr, ETH_ALEN);
8849 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
8850 mgmt.u.deauth.reason_code = host_to_le16(reason);
8851 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
8852 IEEE80211_HDRLEN +
8853 sizeof(mgmt.u.deauth), 0, 0, 0, 0,
8854 0);
8855 }
8856
8857
8858 static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
8859 int reason)
8860 {
8861 struct i802_bss *bss = priv;
8862 struct wpa_driver_nl80211_data *drv = bss->drv;
8863 struct ieee80211_mgmt mgmt;
8864
8865 if (drv->device_ap_sme)
8866 return wpa_driver_nl80211_sta_remove(bss, addr);
8867
8868 memset(&mgmt, 0, sizeof(mgmt));
8869 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
8870 WLAN_FC_STYPE_DISASSOC);
8871 memcpy(mgmt.da, addr, ETH_ALEN);
8872 memcpy(mgmt.sa, own_addr, ETH_ALEN);
8873 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
8874 mgmt.u.disassoc.reason_code = host_to_le16(reason);
8875 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
8876 IEEE80211_HDRLEN +
8877 sizeof(mgmt.u.disassoc), 0, 0, 0, 0,
8878 0);
8879 }
8880
8881 #endif /* HOSTAPD || CONFIG_AP */
8882
8883 #ifdef HOSTAPD
8884
8885 static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
8886 {
8887 int i;
8888 int *old;
8889
8890 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d",
8891 ifidx);
8892 for (i = 0; i < drv->num_if_indices; i++) {
8893 if (drv->if_indices[i] == 0) {
8894 drv->if_indices[i] = ifidx;
8895 return;
8896 }
8897 }
8898
8899 if (drv->if_indices != drv->default_if_indices)
8900 old = drv->if_indices;
8901 else
8902 old = NULL;
8903
8904 drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1,
8905 sizeof(int));
8906 if (!drv->if_indices) {
8907 if (!old)
8908 drv->if_indices = drv->default_if_indices;
8909 else
8910 drv->if_indices = old;
8911 wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
8912 "interfaces");
8913 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
8914 return;
8915 } else if (!old)
8916 os_memcpy(drv->if_indices, drv->default_if_indices,
8917 sizeof(drv->default_if_indices));
8918 drv->if_indices[drv->num_if_indices] = ifidx;
8919 drv->num_if_indices++;
8920 }
8921
8922
8923 static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
8924 {
8925 int i;
8926
8927 for (i = 0; i < drv->num_if_indices; i++) {
8928 if (drv->if_indices[i] == ifidx) {
8929 drv->if_indices[i] = 0;
8930 break;
8931 }
8932 }
8933 }
8934
8935
8936 static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
8937 {
8938 int i;
8939
8940 for (i = 0; i < drv->num_if_indices; i++)
8941 if (drv->if_indices[i] == ifidx)
8942 return 1;
8943
8944 return 0;
8945 }
8946
8947
8948 static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val,
8949 const char *bridge_ifname, char *ifname_wds)
8950 {
8951 struct i802_bss *bss = priv;
8952 struct wpa_driver_nl80211_data *drv = bss->drv;
8953 char name[IFNAMSIZ + 1];
8954
8955 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid);
8956 if (ifname_wds)
8957 os_strlcpy(ifname_wds, name, IFNAMSIZ + 1);
8958
8959 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR
8960 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name);
8961 if (val) {
8962 if (!if_nametoindex(name)) {
8963 if (nl80211_create_iface(drv, name,
8964 NL80211_IFTYPE_AP_VLAN,
8965 bss->addr, 1, NULL, NULL) < 0)
8966 return -1;
8967 if (bridge_ifname &&
8968 linux_br_add_if(drv->global->ioctl_sock,
8969 bridge_ifname, name) < 0)
8970 return -1;
8971 }
8972 if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) {
8973 wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA "
8974 "interface %s up", name);
8975 }
8976 return i802_set_sta_vlan(priv, addr, name, 0);
8977 } else {
8978 if (bridge_ifname)
8979 linux_br_del_if(drv->global->ioctl_sock, bridge_ifname,
8980 name);
8981
8982 i802_set_sta_vlan(priv, addr, bss->ifname, 0);
8983 return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN,
8984 name);
8985 }
8986 }
8987
8988
8989 static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
8990 {
8991 struct wpa_driver_nl80211_data *drv = eloop_ctx;
8992 struct sockaddr_ll lladdr;
8993 unsigned char buf[3000];
8994 int len;
8995 socklen_t fromlen = sizeof(lladdr);
8996
8997 len = recvfrom(sock, buf, sizeof(buf), 0,
8998 (struct sockaddr *)&lladdr, &fromlen);
8999 if (len < 0) {
9000 wpa_printf(MSG_ERROR, "nl80211: EAPOL recv failed: %s",
9001 strerror(errno));
9002 return;
9003 }
9004
9005 if (have_ifidx(drv, lladdr.sll_ifindex))
9006 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len);
9007 }
9008
9009
9010 static int i802_check_bridge(struct wpa_driver_nl80211_data *drv,
9011 struct i802_bss *bss,
9012 const char *brname, const char *ifname)
9013 {
9014 int ifindex;
9015 char in_br[IFNAMSIZ];
9016
9017 os_strlcpy(bss->brname, brname, IFNAMSIZ);
9018 ifindex = if_nametoindex(brname);
9019 if (ifindex == 0) {
9020 /*
9021 * Bridge was configured, but the bridge device does
9022 * not exist. Try to add it now.
9023 */
9024 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) {
9025 wpa_printf(MSG_ERROR, "nl80211: Failed to add the "
9026 "bridge interface %s: %s",
9027 brname, strerror(errno));
9028 return -1;
9029 }
9030 bss->added_bridge = 1;
9031 add_ifidx(drv, if_nametoindex(brname));
9032 }
9033
9034 if (linux_br_get(in_br, ifname) == 0) {
9035 if (os_strcmp(in_br, brname) == 0)
9036 return 0; /* already in the bridge */
9037
9038 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from "
9039 "bridge %s", ifname, in_br);
9040 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) <
9041 0) {
9042 wpa_printf(MSG_ERROR, "nl80211: Failed to "
9043 "remove interface %s from bridge "
9044 "%s: %s",
9045 ifname, brname, strerror(errno));
9046 return -1;
9047 }
9048 }
9049
9050 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s",
9051 ifname, brname);
9052 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) {
9053 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s "
9054 "into bridge %s: %s",
9055 ifname, brname, strerror(errno));
9056 return -1;
9057 }
9058 bss->added_if_into_bridge = 1;
9059
9060 return 0;
9061 }
9062
9063
9064 static void *i802_init(struct hostapd_data *hapd,
9065 struct wpa_init_params *params)
9066 {
9067 struct wpa_driver_nl80211_data *drv;
9068 struct i802_bss *bss;
9069 size_t i;
9070 char brname[IFNAMSIZ];
9071 int ifindex, br_ifindex;
9072 int br_added = 0;
9073
9074 bss = wpa_driver_nl80211_init(hapd, params->ifname,
9075 params->global_priv);
9076 if (bss == NULL)
9077 return NULL;
9078
9079 drv = bss->drv;
9080 drv->nlmode = NL80211_IFTYPE_AP;
9081 drv->eapol_sock = -1;
9082
9083 if (linux_br_get(brname, params->ifname) == 0) {
9084 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s",
9085 params->ifname, brname);
9086 br_ifindex = if_nametoindex(brname);
9087 } else {
9088 brname[0] = '\0';
9089 br_ifindex = 0;
9090 }
9091
9092 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
9093 drv->if_indices = drv->default_if_indices;
9094 for (i = 0; i < params->num_bridge; i++) {
9095 if (params->bridge[i]) {
9096 ifindex = if_nametoindex(params->bridge[i]);
9097 if (ifindex)
9098 add_ifidx(drv, ifindex);
9099 if (ifindex == br_ifindex)
9100 br_added = 1;
9101 }
9102 }
9103 if (!br_added && br_ifindex &&
9104 (params->num_bridge == 0 || !params->bridge[0]))
9105 add_ifidx(drv, br_ifindex);
9106
9107 /* start listening for EAPOL on the default AP interface */
9108 add_ifidx(drv, drv->ifindex);
9109
9110 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0))
9111 goto failed;
9112
9113 if (params->bssid) {
9114 if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
9115 params->bssid))
9116 goto failed;
9117 }
9118
9119 if (wpa_driver_nl80211_set_mode(bss, drv->nlmode)) {
9120 wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s "
9121 "into AP mode", bss->ifname);
9122 goto failed;
9123 }
9124
9125 if (params->num_bridge && params->bridge[0] &&
9126 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0)
9127 goto failed;
9128
9129 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1))
9130 goto failed;
9131
9132 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE));
9133 if (drv->eapol_sock < 0) {
9134 wpa_printf(MSG_ERROR, "nl80211: socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE) failed: %s",
9135 strerror(errno));
9136 goto failed;
9137 }
9138
9139 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL))
9140 {
9141 wpa_printf(MSG_INFO, "nl80211: Could not register read socket for eapol");
9142 goto failed;
9143 }
9144
9145 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
9146 params->own_addr))
9147 goto failed;
9148
9149 memcpy(bss->addr, params->own_addr, ETH_ALEN);
9150
9151 return bss;
9152
9153 failed:
9154 wpa_driver_nl80211_deinit(bss);
9155 return NULL;
9156 }
9157
9158
9159 static void i802_deinit(void *priv)
9160 {
9161 struct i802_bss *bss = priv;
9162 wpa_driver_nl80211_deinit(bss);
9163 }
9164
9165 #endif /* HOSTAPD */
9166
9167
9168 static enum nl80211_iftype wpa_driver_nl80211_if_type(
9169 enum wpa_driver_if_type type)
9170 {
9171 switch (type) {
9172 case WPA_IF_STATION:
9173 return NL80211_IFTYPE_STATION;
9174 case WPA_IF_P2P_CLIENT:
9175 case WPA_IF_P2P_GROUP:
9176 return NL80211_IFTYPE_P2P_CLIENT;
9177 case WPA_IF_AP_VLAN:
9178 return NL80211_IFTYPE_AP_VLAN;
9179 case WPA_IF_AP_BSS:
9180 return NL80211_IFTYPE_AP;
9181 case WPA_IF_P2P_GO:
9182 return NL80211_IFTYPE_P2P_GO;
9183 case WPA_IF_P2P_DEVICE:
9184 return NL80211_IFTYPE_P2P_DEVICE;
9185 }
9186 return -1;
9187 }
9188
9189
9190 #ifdef CONFIG_P2P
9191
9192 static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr)
9193 {
9194 struct wpa_driver_nl80211_data *drv;
9195 dl_list_for_each(drv, &global->interfaces,
9196 struct wpa_driver_nl80211_data, list) {
9197 if (os_memcmp(addr, drv->first_bss.addr, ETH_ALEN) == 0)
9198 return 1;
9199 }
9200 return 0;
9201 }
9202
9203
9204 static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv,
9205 u8 *new_addr)
9206 {
9207 unsigned int idx;
9208
9209 if (!drv->global)
9210 return -1;
9211
9212 os_memcpy(new_addr, drv->first_bss.addr, ETH_ALEN);
9213 for (idx = 0; idx < 64; idx++) {
9214 new_addr[0] = drv->first_bss.addr[0] | 0x02;
9215 new_addr[0] ^= idx << 2;
9216 if (!nl80211_addr_in_use(drv->global, new_addr))
9217 break;
9218 }
9219 if (idx == 64)
9220 return -1;
9221
9222 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address "
9223 MACSTR, MAC2STR(new_addr));
9224
9225 return 0;
9226 }
9227
9228 #endif /* CONFIG_P2P */
9229
9230
9231 struct wdev_info {
9232 u64 wdev_id;
9233 int wdev_id_set;
9234 u8 macaddr[ETH_ALEN];
9235 };
9236
9237 static int nl80211_wdev_handler(struct nl_msg *msg, void *arg)
9238 {
9239 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
9240 struct nlattr *tb[NL80211_ATTR_MAX + 1];
9241 struct wdev_info *wi = arg;
9242
9243 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
9244 genlmsg_attrlen(gnlh, 0), NULL);
9245 if (tb[NL80211_ATTR_WDEV]) {
9246 wi->wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]);
9247 wi->wdev_id_set = 1;
9248 }
9249
9250 if (tb[NL80211_ATTR_MAC])
9251 os_memcpy(wi->macaddr, nla_data(tb[NL80211_ATTR_MAC]),
9252 ETH_ALEN);
9253
9254 return NL_SKIP;
9255 }
9256
9257
9258 static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type,
9259 const char *ifname, const u8 *addr,
9260 void *bss_ctx, void **drv_priv,
9261 char *force_ifname, u8 *if_addr,
9262 const char *bridge)
9263 {
9264 enum nl80211_iftype nlmode;
9265 struct i802_bss *bss = priv;
9266 struct wpa_driver_nl80211_data *drv = bss->drv;
9267 int ifidx;
9268
9269 if (addr)
9270 os_memcpy(if_addr, addr, ETH_ALEN);
9271 nlmode = wpa_driver_nl80211_if_type(type);
9272 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) {
9273 struct wdev_info p2pdev_info;
9274
9275 os_memset(&p2pdev_info, 0, sizeof(p2pdev_info));
9276 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr,
9277 0, nl80211_wdev_handler,
9278 &p2pdev_info);
9279 if (!p2pdev_info.wdev_id_set || ifidx != 0) {
9280 wpa_printf(MSG_ERROR, "nl80211: Failed to create a P2P Device interface %s",
9281 ifname);
9282 return -1;
9283 }
9284
9285 drv->global->if_add_wdevid = p2pdev_info.wdev_id;
9286 drv->global->if_add_wdevid_set = p2pdev_info.wdev_id_set;
9287 if (!is_zero_ether_addr(p2pdev_info.macaddr))
9288 os_memcpy(if_addr, p2pdev_info.macaddr, ETH_ALEN);
9289 wpa_printf(MSG_DEBUG, "nl80211: New P2P Device interface %s (0x%llx) created",
9290 ifname,
9291 (long long unsigned int) p2pdev_info.wdev_id);
9292 } else {
9293 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr,
9294 0, NULL, NULL);
9295 if (ifidx < 0) {
9296 return -1;
9297 }
9298 }
9299
9300 if (!addr) {
9301 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE)
9302 os_memcpy(if_addr, bss->addr, ETH_ALEN);
9303 else if (linux_get_ifhwaddr(drv->global->ioctl_sock,
9304 bss->ifname, if_addr) < 0) {
9305 nl80211_remove_iface(drv, ifidx);
9306 return -1;
9307 }
9308 }
9309
9310 #ifdef CONFIG_P2P
9311 if (!addr &&
9312 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP ||
9313 type == WPA_IF_P2P_GO)) {
9314 /* Enforce unique P2P Interface Address */
9315 u8 new_addr[ETH_ALEN];
9316
9317 if (linux_get_ifhwaddr(drv->global->ioctl_sock, ifname,
9318 new_addr) < 0) {
9319 nl80211_remove_iface(drv, ifidx);
9320 return -1;
9321 }
9322 if (nl80211_addr_in_use(drv->global, new_addr)) {
9323 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address "
9324 "for P2P group interface");
9325 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) {
9326 nl80211_remove_iface(drv, ifidx);
9327 return -1;
9328 }
9329 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname,
9330 new_addr) < 0) {
9331 nl80211_remove_iface(drv, ifidx);
9332 return -1;
9333 }
9334 }
9335 os_memcpy(if_addr, new_addr, ETH_ALEN);
9336 }
9337 #endif /* CONFIG_P2P */
9338
9339 #ifdef HOSTAPD
9340 if (type == WPA_IF_AP_BSS) {
9341 struct i802_bss *new_bss = os_zalloc(sizeof(*new_bss));
9342 if (new_bss == NULL) {
9343 nl80211_remove_iface(drv, ifidx);
9344 return -1;
9345 }
9346
9347 if (bridge &&
9348 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) {
9349 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new "
9350 "interface %s to a bridge %s",
9351 ifname, bridge);
9352 nl80211_remove_iface(drv, ifidx);
9353 os_free(new_bss);
9354 return -1;
9355 }
9356
9357 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1))
9358 {
9359 nl80211_remove_iface(drv, ifidx);
9360 os_free(new_bss);
9361 return -1;
9362 }
9363 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ);
9364 os_memcpy(new_bss->addr, if_addr, ETH_ALEN);
9365 new_bss->ifindex = ifidx;
9366 new_bss->drv = drv;
9367 new_bss->next = drv->first_bss.next;
9368 new_bss->freq = drv->first_bss.freq;
9369 new_bss->ctx = bss_ctx;
9370 drv->first_bss.next = new_bss;
9371 if (drv_priv)
9372 *drv_priv = new_bss;
9373 nl80211_init_bss(new_bss);
9374
9375 /* Subscribe management frames for this WPA_IF_AP_BSS */
9376 if (nl80211_setup_ap(new_bss))
9377 return -1;
9378 }
9379 #endif /* HOSTAPD */
9380
9381 if (drv->global)
9382 drv->global->if_add_ifindex = ifidx;
9383
9384 return 0;
9385 }
9386
9387
9388 static int wpa_driver_nl80211_if_remove(struct i802_bss *bss,
9389 enum wpa_driver_if_type type,
9390 const char *ifname)
9391 {
9392 struct wpa_driver_nl80211_data *drv = bss->drv;
9393 int ifindex = if_nametoindex(ifname);
9394
9395 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d",
9396 __func__, type, ifname, ifindex);
9397 if (ifindex > 0)
9398 nl80211_remove_iface(drv, ifindex);
9399
9400 #ifdef HOSTAPD
9401 if (type != WPA_IF_AP_BSS)
9402 return 0;
9403
9404 if (bss->added_if_into_bridge) {
9405 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname,
9406 bss->ifname) < 0)
9407 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
9408 "interface %s from bridge %s: %s",
9409 bss->ifname, bss->brname, strerror(errno));
9410 }
9411 if (bss->added_bridge) {
9412 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0)
9413 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
9414 "bridge %s: %s",
9415 bss->brname, strerror(errno));
9416 }
9417
9418 if (bss != &drv->first_bss) {
9419 struct i802_bss *tbss;
9420
9421 for (tbss = &drv->first_bss; tbss; tbss = tbss->next) {
9422 if (tbss->next == bss) {
9423 tbss->next = bss->next;
9424 /* Unsubscribe management frames */
9425 nl80211_teardown_ap(bss);
9426 nl80211_destroy_bss(bss);
9427 os_free(bss);
9428 bss = NULL;
9429 break;
9430 }
9431 }
9432 if (bss)
9433 wpa_printf(MSG_INFO, "nl80211: %s - could not find "
9434 "BSS %p in the list", __func__, bss);
9435 }
9436 #endif /* HOSTAPD */
9437
9438 return 0;
9439 }
9440
9441
9442 static int cookie_handler(struct nl_msg *msg, void *arg)
9443 {
9444 struct nlattr *tb[NL80211_ATTR_MAX + 1];
9445 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
9446 u64 *cookie = arg;
9447 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
9448 genlmsg_attrlen(gnlh, 0), NULL);
9449 if (tb[NL80211_ATTR_COOKIE])
9450 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
9451 return NL_SKIP;
9452 }
9453
9454
9455 static int nl80211_send_frame_cmd(struct i802_bss *bss,
9456 unsigned int freq, unsigned int wait,
9457 const u8 *buf, size_t buf_len,
9458 u64 *cookie_out, int no_cck, int no_ack,
9459 int offchanok)
9460 {
9461 struct wpa_driver_nl80211_data *drv = bss->drv;
9462 struct nl_msg *msg;
9463 u64 cookie;
9464 int ret = -1;
9465
9466 msg = nlmsg_alloc();
9467 if (!msg)
9468 return -1;
9469
9470 wpa_printf(MSG_MSGDUMP, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d "
9471 "no_ack=%d offchanok=%d",
9472 freq, wait, no_cck, no_ack, offchanok);
9473 wpa_hexdump(MSG_MSGDUMP, "CMD_FRAME", buf, buf_len);
9474 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME);
9475
9476 if (nl80211_set_iface_id(msg, bss) < 0)
9477 goto nla_put_failure;
9478 if (freq)
9479 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
9480 if (wait)
9481 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait);
9482 if (offchanok && (drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX))
9483 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
9484 if (no_cck)
9485 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE);
9486 if (no_ack)
9487 NLA_PUT_FLAG(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK);
9488
9489 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf);
9490
9491 cookie = 0;
9492 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
9493 msg = NULL;
9494 if (ret) {
9495 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d "
9496 "(%s) (freq=%u wait=%u)", ret, strerror(-ret),
9497 freq, wait);
9498 goto nla_put_failure;
9499 }
9500 wpa_printf(MSG_MSGDUMP, "nl80211: Frame TX command accepted%s; "
9501 "cookie 0x%llx", no_ack ? " (no ACK)" : "",
9502 (long long unsigned int) cookie);
9503
9504 if (cookie_out)
9505 *cookie_out = no_ack ? (u64) -1 : cookie;
9506
9507 nla_put_failure:
9508 nlmsg_free(msg);
9509 return ret;
9510 }
9511
9512
9513 static int wpa_driver_nl80211_send_action(struct i802_bss *bss,
9514 unsigned int freq,
9515 unsigned int wait_time,
9516 const u8 *dst, const u8 *src,
9517 const u8 *bssid,
9518 const u8 *data, size_t data_len,
9519 int no_cck)
9520 {
9521 struct wpa_driver_nl80211_data *drv = bss->drv;
9522 int ret = -1;
9523 u8 *buf;
9524 struct ieee80211_hdr *hdr;
9525
9526 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, "
9527 "freq=%u MHz wait=%d ms no_cck=%d)",
9528 drv->ifindex, freq, wait_time, no_cck);
9529
9530 buf = os_zalloc(24 + data_len);
9531 if (buf == NULL)
9532 return ret;
9533 os_memcpy(buf + 24, data, data_len);
9534 hdr = (struct ieee80211_hdr *) buf;
9535 hdr->frame_control =
9536 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION);
9537 os_memcpy(hdr->addr1, dst, ETH_ALEN);
9538 os_memcpy(hdr->addr2, src, ETH_ALEN);
9539 os_memcpy(hdr->addr3, bssid, ETH_ALEN);
9540
9541 if (is_ap_interface(drv->nlmode) &&
9542 (!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) ||
9543 (int) freq == bss->freq || drv->device_ap_sme ||
9544 !drv->use_monitor))
9545 ret = wpa_driver_nl80211_send_mlme(bss, buf, 24 + data_len,
9546 0, freq, no_cck, 1,
9547 wait_time);
9548 else
9549 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf,
9550 24 + data_len,
9551 &drv->send_action_cookie,
9552 no_cck, 0, 1);
9553
9554 os_free(buf);
9555 return ret;
9556 }
9557
9558
9559 static void wpa_driver_nl80211_send_action_cancel_wait(void *priv)
9560 {
9561 struct i802_bss *bss = priv;
9562 struct wpa_driver_nl80211_data *drv = bss->drv;
9563 struct nl_msg *msg;
9564 int ret;
9565
9566 msg = nlmsg_alloc();
9567 if (!msg)
9568 return;
9569
9570 wpa_printf(MSG_DEBUG, "nl80211: Cancel TX frame wait: cookie=0x%llx",
9571 (long long unsigned int) drv->send_action_cookie);
9572 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL);
9573
9574 if (nl80211_set_iface_id(msg, bss) < 0)
9575 goto nla_put_failure;
9576 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie);
9577
9578 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
9579 msg = NULL;
9580 if (ret)
9581 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d "
9582 "(%s)", ret, strerror(-ret));
9583
9584 nla_put_failure:
9585 nlmsg_free(msg);
9586 }
9587
9588
9589 static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq,
9590 unsigned int duration)
9591 {
9592 struct i802_bss *bss = priv;
9593 struct wpa_driver_nl80211_data *drv = bss->drv;
9594 struct nl_msg *msg;
9595 int ret;
9596 u64 cookie;
9597
9598 msg = nlmsg_alloc();
9599 if (!msg)
9600 return -1;
9601
9602 nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL);
9603
9604 if (nl80211_set_iface_id(msg, bss) < 0)
9605 goto nla_put_failure;
9606
9607 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
9608 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
9609
9610 cookie = 0;
9611 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
9612 msg = NULL;
9613 if (ret == 0) {
9614 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie "
9615 "0x%llx for freq=%u MHz duration=%u",
9616 (long long unsigned int) cookie, freq, duration);
9617 drv->remain_on_chan_cookie = cookie;
9618 drv->pending_remain_on_chan = 1;
9619 return 0;
9620 }
9621 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel "
9622 "(freq=%d duration=%u): %d (%s)",
9623 freq, duration, ret, strerror(-ret));
9624 nla_put_failure:
9625 nlmsg_free(msg);
9626 return -1;
9627 }
9628
9629
9630 static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv)
9631 {
9632 struct i802_bss *bss = priv;
9633 struct wpa_driver_nl80211_data *drv = bss->drv;
9634 struct nl_msg *msg;
9635 int ret;
9636
9637 if (!drv->pending_remain_on_chan) {
9638 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel "
9639 "to cancel");
9640 return -1;
9641 }
9642
9643 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie "
9644 "0x%llx",
9645 (long long unsigned int) drv->remain_on_chan_cookie);
9646
9647 msg = nlmsg_alloc();
9648 if (!msg)
9649 return -1;
9650
9651 nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL);
9652
9653 if (nl80211_set_iface_id(msg, bss) < 0)
9654 goto nla_put_failure;
9655
9656 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie);
9657
9658 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
9659 msg = NULL;
9660 if (ret == 0)
9661 return 0;
9662 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: "
9663 "%d (%s)", ret, strerror(-ret));
9664 nla_put_failure:
9665 nlmsg_free(msg);
9666 return -1;
9667 }
9668
9669
9670 static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, int report)
9671 {
9672 struct wpa_driver_nl80211_data *drv = bss->drv;
9673
9674 if (!report) {
9675 if (bss->nl_preq && drv->device_ap_sme &&
9676 is_ap_interface(drv->nlmode)) {
9677 /*
9678 * Do not disable Probe Request reporting that was
9679 * enabled in nl80211_setup_ap().
9680 */
9681 wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of "
9682 "Probe Request reporting nl_preq=%p while "
9683 "in AP mode", bss->nl_preq);
9684 } else if (bss->nl_preq) {
9685 wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request "
9686 "reporting nl_preq=%p", bss->nl_preq);
9687 nl80211_destroy_eloop_handle(&bss->nl_preq);
9688 }
9689 return 0;
9690 }
9691
9692 if (bss->nl_preq) {
9693 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting "
9694 "already on! nl_preq=%p", bss->nl_preq);
9695 return 0;
9696 }
9697
9698 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq");
9699 if (bss->nl_preq == NULL)
9700 return -1;
9701 wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request "
9702 "reporting nl_preq=%p", bss->nl_preq);
9703
9704 if (nl80211_register_frame(bss, bss->nl_preq,
9705 (WLAN_FC_TYPE_MGMT << 2) |
9706 (WLAN_FC_STYPE_PROBE_REQ << 4),
9707 NULL, 0) < 0)
9708 goto out_err;
9709
9710 nl80211_register_eloop_read(&bss->nl_preq,
9711 wpa_driver_nl80211_event_receive,
9712 bss->nl_cb);
9713
9714 return 0;
9715
9716 out_err:
9717 nl_destroy_handles(&bss->nl_preq);
9718 return -1;
9719 }
9720
9721
9722 static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
9723 int ifindex, int disabled)
9724 {
9725 struct nl_msg *msg;
9726 struct nlattr *bands, *band;
9727 int ret;
9728
9729 msg = nlmsg_alloc();
9730 if (!msg)
9731 return -1;
9732
9733 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK);
9734 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
9735
9736 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES);
9737 if (!bands)
9738 goto nla_put_failure;
9739
9740 /*
9741 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything
9742 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS
9743 * rates. All 5 GHz rates are left enabled.
9744 */
9745 band = nla_nest_start(msg, NL80211_BAND_2GHZ);
9746 if (!band)
9747 goto nla_put_failure;
9748 if (disabled) {
9749 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8,
9750 "\x0c\x12\x18\x24\x30\x48\x60\x6c");
9751 }
9752 nla_nest_end(msg, band);
9753
9754 nla_nest_end(msg, bands);
9755
9756 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
9757 msg = NULL;
9758 if (ret) {
9759 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d "
9760 "(%s)", ret, strerror(-ret));
9761 } else
9762 drv->disabled_11b_rates = disabled;
9763
9764 return ret;
9765
9766 nla_put_failure:
9767 nlmsg_free(msg);
9768 return -1;
9769 }
9770
9771
9772 static int wpa_driver_nl80211_deinit_ap(void *priv)
9773 {
9774 struct i802_bss *bss = priv;
9775 struct wpa_driver_nl80211_data *drv = bss->drv;
9776 if (!is_ap_interface(drv->nlmode))
9777 return -1;
9778 wpa_driver_nl80211_del_beacon(drv);
9779
9780 /*
9781 * If the P2P GO interface was dynamically added, then it is
9782 * possible that the interface change to station is not possible.
9783 */
9784 if (drv->nlmode == NL80211_IFTYPE_P2P_GO && bss->if_dynamic)
9785 return 0;
9786
9787 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION);
9788 }
9789
9790
9791 static int wpa_driver_nl80211_stop_ap(void *priv)
9792 {
9793 struct i802_bss *bss = priv;
9794 struct wpa_driver_nl80211_data *drv = bss->drv;
9795 if (!is_ap_interface(drv->nlmode))
9796 return -1;
9797 wpa_driver_nl80211_del_beacon(drv);
9798 bss->beacon_set = 0;
9799 return 0;
9800 }
9801
9802
9803 static int wpa_driver_nl80211_deinit_p2p_cli(void *priv)
9804 {
9805 struct i802_bss *bss = priv;
9806 struct wpa_driver_nl80211_data *drv = bss->drv;
9807 if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT)
9808 return -1;
9809
9810 /*
9811 * If the P2P Client interface was dynamically added, then it is
9812 * possible that the interface change to station is not possible.
9813 */
9814 if (bss->if_dynamic)
9815 return 0;
9816
9817 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION);
9818 }
9819
9820
9821 static void wpa_driver_nl80211_resume(void *priv)
9822 {
9823 struct i802_bss *bss = priv;
9824
9825 if (i802_set_iface_flags(bss, 1))
9826 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on resume event");
9827 }
9828
9829
9830 static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap,
9831 const u8 *ies, size_t ies_len)
9832 {
9833 struct i802_bss *bss = priv;
9834 struct wpa_driver_nl80211_data *drv = bss->drv;
9835 int ret;
9836 u8 *data, *pos;
9837 size_t data_len;
9838 const u8 *own_addr = bss->addr;
9839
9840 if (action != 1) {
9841 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action "
9842 "action %d", action);
9843 return -1;
9844 }
9845
9846 /*
9847 * Action frame payload:
9848 * Category[1] = 6 (Fast BSS Transition)
9849 * Action[1] = 1 (Fast BSS Transition Request)
9850 * STA Address
9851 * Target AP Address
9852 * FT IEs
9853 */
9854
9855 data_len = 2 + 2 * ETH_ALEN + ies_len;
9856 data = os_malloc(data_len);
9857 if (data == NULL)
9858 return -1;
9859 pos = data;
9860 *pos++ = 0x06; /* FT Action category */
9861 *pos++ = action;
9862 os_memcpy(pos, own_addr, ETH_ALEN);
9863 pos += ETH_ALEN;
9864 os_memcpy(pos, target_ap, ETH_ALEN);
9865 pos += ETH_ALEN;
9866 os_memcpy(pos, ies, ies_len);
9867
9868 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0,
9869 drv->bssid, own_addr, drv->bssid,
9870 data, data_len, 0);
9871 os_free(data);
9872
9873 return ret;
9874 }
9875
9876
9877 static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis)
9878 {
9879 struct i802_bss *bss = priv;
9880 struct wpa_driver_nl80211_data *drv = bss->drv;
9881 struct nl_msg *msg;
9882 struct nlattr *cqm;
9883 int ret = -1;
9884
9885 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d "
9886 "hysteresis=%d", threshold, hysteresis);
9887
9888 msg = nlmsg_alloc();
9889 if (!msg)
9890 return -1;
9891
9892 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM);
9893
9894 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
9895
9896 cqm = nla_nest_start(msg, NL80211_ATTR_CQM);
9897 if (cqm == NULL)
9898 goto nla_put_failure;
9899
9900 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THOLD, threshold);
9901 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_HYST, hysteresis);
9902 nla_nest_end(msg, cqm);
9903
9904 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
9905 msg = NULL;
9906
9907 nla_put_failure:
9908 nlmsg_free(msg);
9909 return ret;
9910 }
9911
9912
9913 /* Converts nl80211_chan_width to a common format */
9914 static enum chan_width convert2width(int width)
9915 {
9916 switch (width) {
9917 case NL80211_CHAN_WIDTH_20_NOHT:
9918 return CHAN_WIDTH_20_NOHT;
9919 case NL80211_CHAN_WIDTH_20:
9920 return CHAN_WIDTH_20;
9921 case NL80211_CHAN_WIDTH_40:
9922 return CHAN_WIDTH_40;
9923 case NL80211_CHAN_WIDTH_80:
9924 return CHAN_WIDTH_80;
9925 case NL80211_CHAN_WIDTH_80P80:
9926 return CHAN_WIDTH_80P80;
9927 case NL80211_CHAN_WIDTH_160:
9928 return CHAN_WIDTH_160;
9929 }
9930 return CHAN_WIDTH_UNKNOWN;
9931 }
9932
9933
9934 static int get_channel_width(struct nl_msg *msg, void *arg)
9935 {
9936 struct nlattr *tb[NL80211_ATTR_MAX + 1];
9937 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
9938 struct wpa_signal_info *sig_change = arg;
9939
9940 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
9941 genlmsg_attrlen(gnlh, 0), NULL);
9942
9943 sig_change->center_frq1 = -1;
9944 sig_change->center_frq2 = -1;
9945 sig_change->chanwidth = CHAN_WIDTH_UNKNOWN;
9946
9947 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) {
9948 sig_change->chanwidth = convert2width(
9949 nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH]));
9950 if (tb[NL80211_ATTR_CENTER_FREQ1])
9951 sig_change->center_frq1 =
9952 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]);
9953 if (tb[NL80211_ATTR_CENTER_FREQ2])
9954 sig_change->center_frq2 =
9955 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]);
9956 }
9957
9958 return NL_SKIP;
9959 }
9960
9961
9962 static int nl80211_get_channel_width(struct wpa_driver_nl80211_data *drv,
9963 struct wpa_signal_info *sig)
9964 {
9965 struct nl_msg *msg;
9966
9967 msg = nlmsg_alloc();
9968 if (!msg)
9969 return -ENOMEM;
9970
9971 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_INTERFACE);
9972 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
9973
9974 return send_and_recv_msgs(drv, msg, get_channel_width, sig);
9975
9976 nla_put_failure:
9977 nlmsg_free(msg);
9978 return -ENOBUFS;
9979 }
9980
9981
9982 static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si)
9983 {
9984 struct i802_bss *bss = priv;
9985 struct wpa_driver_nl80211_data *drv = bss->drv;
9986 int res;
9987
9988 os_memset(si, 0, sizeof(*si));
9989 res = nl80211_get_link_signal(drv, si);
9990 if (res != 0)
9991 return res;
9992
9993 res = nl80211_get_channel_width(drv, si);
9994 if (res != 0)
9995 return res;
9996
9997 return nl80211_get_link_noise(drv, si);
9998 }
9999
10000
10001 static int wpa_driver_nl80211_shared_freq(void *priv)
10002 {
10003 struct i802_bss *bss = priv;
10004 struct wpa_driver_nl80211_data *drv = bss->drv;
10005 struct wpa_driver_nl80211_data *driver;
10006 int freq = 0;
10007
10008 /*
10009 * If the same PHY is in connected state with some other interface,
10010 * then retrieve the assoc freq.
10011 */
10012 wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s",
10013 drv->phyname);
10014
10015 dl_list_for_each(driver, &drv->global->interfaces,
10016 struct wpa_driver_nl80211_data, list) {
10017 if (drv == driver ||
10018 os_strcmp(drv->phyname, driver->phyname) != 0 ||
10019 !driver->associated)
10020 continue;
10021
10022 wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s "
10023 MACSTR,
10024 driver->phyname, driver->first_bss.ifname,
10025 MAC2STR(driver->first_bss.addr));
10026 if (is_ap_interface(driver->nlmode))
10027 freq = driver->first_bss.freq;
10028 else
10029 freq = nl80211_get_assoc_freq(driver);
10030 wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d",
10031 drv->phyname, freq);
10032 }
10033
10034 if (!freq)
10035 wpa_printf(MSG_DEBUG, "nl80211: No shared interface for "
10036 "PHY (%s) in associated state", drv->phyname);
10037
10038 return freq;
10039 }
10040
10041
10042 static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len,
10043 int encrypt)
10044 {
10045 struct i802_bss *bss = priv;
10046 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0,
10047 0, 0, 0, 0);
10048 }
10049
10050
10051 static int nl80211_set_param(void *priv, const char *param)
10052 {
10053 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param);
10054 if (param == NULL)
10055 return 0;
10056
10057 #ifdef CONFIG_P2P
10058 if (os_strstr(param, "use_p2p_group_interface=1")) {
10059 struct i802_bss *bss = priv;
10060 struct wpa_driver_nl80211_data *drv = bss->drv;
10061
10062 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
10063 "interface");
10064 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
10065 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
10066 }
10067
10068 if (os_strstr(param, "p2p_device=1")) {
10069 struct i802_bss *bss = priv;
10070 struct wpa_driver_nl80211_data *drv = bss->drv;
10071 drv->allow_p2p_device = 1;
10072 }
10073 #endif /* CONFIG_P2P */
10074
10075 return 0;
10076 }
10077
10078
10079 static void * nl80211_global_init(void)
10080 {
10081 struct nl80211_global *global;
10082 struct netlink_config *cfg;
10083
10084 global = os_zalloc(sizeof(*global));
10085 if (global == NULL)
10086 return NULL;
10087 global->ioctl_sock = -1;
10088 dl_list_init(&global->interfaces);
10089 global->if_add_ifindex = -1;
10090
10091 cfg = os_zalloc(sizeof(*cfg));
10092 if (cfg == NULL)
10093 goto err;
10094
10095 cfg->ctx = global;
10096 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink;
10097 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink;
10098 global->netlink = netlink_init(cfg);
10099 if (global->netlink == NULL) {
10100 os_free(cfg);
10101 goto err;
10102 }
10103
10104 if (wpa_driver_nl80211_init_nl_global(global) < 0)
10105 goto err;
10106
10107 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
10108 if (global->ioctl_sock < 0) {
10109 wpa_printf(MSG_ERROR, "nl80211: socket(PF_INET,SOCK_DGRAM) failed: %s",
10110 strerror(errno));
10111 goto err;
10112 }
10113
10114 return global;
10115
10116 err:
10117 nl80211_global_deinit(global);
10118 return NULL;
10119 }
10120
10121
10122 static void nl80211_global_deinit(void *priv)
10123 {
10124 struct nl80211_global *global = priv;
10125 if (global == NULL)
10126 return;
10127 if (!dl_list_empty(&global->interfaces)) {
10128 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at "
10129 "nl80211_global_deinit",
10130 dl_list_len(&global->interfaces));
10131 }
10132
10133 if (global->netlink)
10134 netlink_deinit(global->netlink);
10135
10136 nl_destroy_handles(&global->nl);
10137
10138 if (global->nl_event)
10139 nl80211_destroy_eloop_handle(&global->nl_event);
10140
10141 nl_cb_put(global->nl_cb);
10142
10143 if (global->ioctl_sock >= 0)
10144 close(global->ioctl_sock);
10145
10146 os_free(global);
10147 }
10148
10149
10150 static const char * nl80211_get_radio_name(void *priv)
10151 {
10152 struct i802_bss *bss = priv;
10153 struct wpa_driver_nl80211_data *drv = bss->drv;
10154 return drv->phyname;
10155 }
10156
10157
10158 static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid,
10159 const u8 *pmkid)
10160 {
10161 struct nl_msg *msg;
10162
10163 msg = nlmsg_alloc();
10164 if (!msg)
10165 return -ENOMEM;
10166
10167 nl80211_cmd(bss->drv, msg, 0, cmd);
10168
10169 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
10170 if (pmkid)
10171 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid);
10172 if (bssid)
10173 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
10174
10175 return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
10176 nla_put_failure:
10177 nlmsg_free(msg);
10178 return -ENOBUFS;
10179 }
10180
10181
10182 static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid)
10183 {
10184 struct i802_bss *bss = priv;
10185 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid));
10186 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid);
10187 }
10188
10189
10190 static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid)
10191 {
10192 struct i802_bss *bss = priv;
10193 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR,
10194 MAC2STR(bssid));
10195 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid);
10196 }
10197
10198
10199 static int nl80211_flush_pmkid(void *priv)
10200 {
10201 struct i802_bss *bss = priv;
10202 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs");
10203 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL);
10204 }
10205
10206
10207 static void clean_survey_results(struct survey_results *survey_results)
10208 {
10209 struct freq_survey *survey, *tmp;
10210
10211 if (dl_list_empty(&survey_results->survey_list))
10212 return;
10213
10214 dl_list_for_each_safe(survey, tmp, &survey_results->survey_list,
10215 struct freq_survey, list) {
10216 dl_list_del(&survey->list);
10217 os_free(survey);
10218 }
10219 }
10220
10221
10222 static void add_survey(struct nlattr **sinfo, u32 ifidx,
10223 struct dl_list *survey_list)
10224 {
10225 struct freq_survey *survey;
10226
10227 survey = os_zalloc(sizeof(struct freq_survey));
10228 if (!survey)
10229 return;
10230
10231 survey->ifidx = ifidx;
10232 survey->freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]);
10233 survey->filled = 0;
10234
10235 if (sinfo[NL80211_SURVEY_INFO_NOISE]) {
10236 survey->nf = (int8_t)
10237 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
10238 survey->filled |= SURVEY_HAS_NF;
10239 }
10240
10241 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]) {
10242 survey->channel_time =
10243 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]);
10244 survey->filled |= SURVEY_HAS_CHAN_TIME;
10245 }
10246
10247 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]) {
10248 survey->channel_time_busy =
10249 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]);
10250 survey->filled |= SURVEY_HAS_CHAN_TIME_BUSY;
10251 }
10252
10253 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]) {
10254 survey->channel_time_rx =
10255 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]);
10256 survey->filled |= SURVEY_HAS_CHAN_TIME_RX;
10257 }
10258
10259 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]) {
10260 survey->channel_time_tx =
10261 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]);
10262 survey->filled |= SURVEY_HAS_CHAN_TIME_TX;
10263 }
10264
10265 wpa_printf(MSG_DEBUG, "nl80211: Freq survey dump event (freq=%d MHz noise=%d channel_time=%ld busy_time=%ld tx_time=%ld rx_time=%ld filled=%04x)",
10266 survey->freq,
10267 survey->nf,
10268 (unsigned long int) survey->channel_time,
10269 (unsigned long int) survey->channel_time_busy,
10270 (unsigned long int) survey->channel_time_tx,
10271 (unsigned long int) survey->channel_time_rx,
10272 survey->filled);
10273
10274 dl_list_add_tail(survey_list, &survey->list);
10275 }
10276
10277
10278 static int check_survey_ok(struct nlattr **sinfo, u32 surveyed_freq,
10279 unsigned int freq_filter)
10280 {
10281 if (!freq_filter)
10282 return 1;
10283
10284 return freq_filter == surveyed_freq;
10285 }
10286
10287
10288 static int survey_handler(struct nl_msg *msg, void *arg)
10289 {
10290 struct nlattr *tb[NL80211_ATTR_MAX + 1];
10291 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
10292 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
10293 struct survey_results *survey_results;
10294 u32 surveyed_freq = 0;
10295 u32 ifidx;
10296
10297 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
10298 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
10299 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
10300 };
10301
10302 survey_results = (struct survey_results *) arg;
10303
10304 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
10305 genlmsg_attrlen(gnlh, 0), NULL);
10306
10307 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
10308
10309 if (!tb[NL80211_ATTR_SURVEY_INFO])
10310 return NL_SKIP;
10311
10312 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
10313 tb[NL80211_ATTR_SURVEY_INFO],
10314 survey_policy))
10315 return NL_SKIP;
10316
10317 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) {
10318 wpa_printf(MSG_ERROR, "nl80211: Invalid survey data");
10319 return NL_SKIP;
10320 }
10321
10322 surveyed_freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]);
10323
10324 if (!check_survey_ok(sinfo, surveyed_freq,
10325 survey_results->freq_filter))
10326 return NL_SKIP;
10327
10328 if (survey_results->freq_filter &&
10329 survey_results->freq_filter != surveyed_freq) {
10330 wpa_printf(MSG_EXCESSIVE, "nl80211: Ignoring survey data for freq %d MHz",
10331 surveyed_freq);
10332 return NL_SKIP;
10333 }
10334
10335 add_survey(sinfo, ifidx, &survey_results->survey_list);
10336
10337 return NL_SKIP;
10338 }
10339
10340
10341 static int wpa_driver_nl80211_get_survey(void *priv, unsigned int freq)
10342 {
10343 struct i802_bss *bss = priv;
10344 struct wpa_driver_nl80211_data *drv = bss->drv;
10345 struct nl_msg *msg;
10346 int err = -ENOBUFS;
10347 union wpa_event_data data;
10348 struct survey_results *survey_results;
10349
10350 os_memset(&data, 0, sizeof(data));
10351 survey_results = &data.survey_results;
10352
10353 dl_list_init(&survey_results->survey_list);
10354
10355 msg = nlmsg_alloc();
10356 if (!msg)
10357 goto nla_put_failure;
10358
10359 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
10360
10361 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
10362
10363 if (freq)
10364 data.survey_results.freq_filter = freq;
10365
10366 do {
10367 wpa_printf(MSG_DEBUG, "nl80211: Fetch survey data");
10368 err = send_and_recv_msgs(drv, msg, survey_handler,
10369 survey_results);
10370 } while (err > 0);
10371
10372 if (err) {
10373 wpa_printf(MSG_ERROR, "nl80211: Failed to process survey data");
10374 goto out_clean;
10375 }
10376
10377 wpa_supplicant_event(drv->ctx, EVENT_SURVEY, &data);
10378
10379 out_clean:
10380 clean_survey_results(survey_results);
10381 nla_put_failure:
10382 return err;
10383 }
10384
10385
10386 static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck,
10387 const u8 *replay_ctr)
10388 {
10389 struct i802_bss *bss = priv;
10390 struct wpa_driver_nl80211_data *drv = bss->drv;
10391 struct nlattr *replay_nested;
10392 struct nl_msg *msg;
10393
10394 msg = nlmsg_alloc();
10395 if (!msg)
10396 return;
10397
10398 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
10399
10400 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
10401
10402 replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
10403 if (!replay_nested)
10404 goto nla_put_failure;
10405
10406 NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek);
10407 NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck);
10408 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN,
10409 replay_ctr);
10410
10411 nla_nest_end(msg, replay_nested);
10412
10413 send_and_recv_msgs(drv, msg, NULL, NULL);
10414 return;
10415 nla_put_failure:
10416 nlmsg_free(msg);
10417 }
10418
10419
10420 static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr,
10421 const u8 *addr, int qos)
10422 {
10423 /* send data frame to poll STA and check whether
10424 * this frame is ACKed */
10425 struct {
10426 struct ieee80211_hdr hdr;
10427 u16 qos_ctl;
10428 } STRUCT_PACKED nulldata;
10429 size_t size;
10430
10431 /* Send data frame to poll STA and check whether this frame is ACKed */
10432
10433 os_memset(&nulldata, 0, sizeof(nulldata));
10434
10435 if (qos) {
10436 nulldata.hdr.frame_control =
10437 IEEE80211_FC(WLAN_FC_TYPE_DATA,
10438 WLAN_FC_STYPE_QOS_NULL);
10439 size = sizeof(nulldata);
10440 } else {
10441 nulldata.hdr.frame_control =
10442 IEEE80211_FC(WLAN_FC_TYPE_DATA,
10443 WLAN_FC_STYPE_NULLFUNC);
10444 size = sizeof(struct ieee80211_hdr);
10445 }
10446
10447 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS);
10448 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN);
10449 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
10450 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
10451
10452 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0, 0, 0,
10453 0, 0) < 0)
10454 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to "
10455 "send poll frame");
10456 }
10457
10458 static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr,
10459 int qos)
10460 {
10461 struct i802_bss *bss = priv;
10462 struct wpa_driver_nl80211_data *drv = bss->drv;
10463 struct nl_msg *msg;
10464
10465 if (!drv->poll_command_supported) {
10466 nl80211_send_null_frame(bss, own_addr, addr, qos);
10467 return;
10468 }
10469
10470 msg = nlmsg_alloc();
10471 if (!msg)
10472 return;
10473
10474 nl80211_cmd(drv, msg, 0, NL80211_CMD_PROBE_CLIENT);
10475
10476 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
10477 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
10478
10479 send_and_recv_msgs(drv, msg, NULL, NULL);
10480 return;
10481 nla_put_failure:
10482 nlmsg_free(msg);
10483 }
10484
10485
10486 static int nl80211_set_power_save(struct i802_bss *bss, int enabled)
10487 {
10488 struct nl_msg *msg;
10489
10490 msg = nlmsg_alloc();
10491 if (!msg)
10492 return -ENOMEM;
10493
10494 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_SET_POWER_SAVE);
10495 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
10496 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE,
10497 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED);
10498 return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
10499 nla_put_failure:
10500 nlmsg_free(msg);
10501 return -ENOBUFS;
10502 }
10503
10504
10505 static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps,
10506 int ctwindow)
10507 {
10508 struct i802_bss *bss = priv;
10509
10510 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d "
10511 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow);
10512
10513 if (opp_ps != -1 || ctwindow != -1)
10514 return -1; /* Not yet supported */
10515
10516 if (legacy_ps == -1)
10517 return 0;
10518 if (legacy_ps != 0 && legacy_ps != 1)
10519 return -1; /* Not yet supported */
10520
10521 return nl80211_set_power_save(bss, legacy_ps);
10522 }
10523
10524
10525 static int nl80211_start_radar_detection(void *priv,
10526 struct hostapd_freq_params *freq)
10527 {
10528 struct i802_bss *bss = priv;
10529 struct wpa_driver_nl80211_data *drv = bss->drv;
10530 struct nl_msg *msg;
10531 int ret;
10532
10533 wpa_printf(MSG_DEBUG, "nl80211: Start radar detection (CAC) %d MHz (ht_enabled=%d, vht_enabled=%d, bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)",
10534 freq->freq, freq->ht_enabled, freq->vht_enabled,
10535 freq->bandwidth, freq->center_freq1, freq->center_freq2);
10536
10537 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_RADAR)) {
10538 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support radar "
10539 "detection");
10540 return -1;
10541 }
10542
10543 msg = nlmsg_alloc();
10544 if (!msg)
10545 return -1;
10546
10547 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_RADAR_DETECT);
10548 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
10549 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq);
10550
10551 if (freq->vht_enabled) {
10552 switch (freq->bandwidth) {
10553 case 20:
10554 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
10555 NL80211_CHAN_WIDTH_20);
10556 break;
10557 case 40:
10558 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
10559 NL80211_CHAN_WIDTH_40);
10560 break;
10561 case 80:
10562 if (freq->center_freq2)
10563 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
10564 NL80211_CHAN_WIDTH_80P80);
10565 else
10566 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
10567 NL80211_CHAN_WIDTH_80);
10568 break;
10569 case 160:
10570 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
10571 NL80211_CHAN_WIDTH_160);
10572 break;
10573 default:
10574 return -1;
10575 }
10576 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1);
10577 if (freq->center_freq2)
10578 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2,
10579 freq->center_freq2);
10580 } else if (freq->ht_enabled) {
10581 switch (freq->sec_channel_offset) {
10582 case -1:
10583 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
10584 NL80211_CHAN_HT40MINUS);
10585 break;
10586 case 1:
10587 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
10588 NL80211_CHAN_HT40PLUS);
10589 break;
10590 default:
10591 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
10592 NL80211_CHAN_HT20);
10593 break;
10594 }
10595 }
10596
10597 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
10598 if (ret == 0)
10599 return 0;
10600 wpa_printf(MSG_DEBUG, "nl80211: Failed to start radar detection: "
10601 "%d (%s)", ret, strerror(-ret));
10602 nla_put_failure:
10603 return -1;
10604 }
10605
10606 #ifdef CONFIG_TDLS
10607
10608 static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code,
10609 u8 dialog_token, u16 status_code,
10610 const u8 *buf, size_t len)
10611 {
10612 struct i802_bss *bss = priv;
10613 struct wpa_driver_nl80211_data *drv = bss->drv;
10614 struct nl_msg *msg;
10615
10616 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
10617 return -EOPNOTSUPP;
10618
10619 if (!dst)
10620 return -EINVAL;
10621
10622 msg = nlmsg_alloc();
10623 if (!msg)
10624 return -ENOMEM;
10625
10626 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT);
10627 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
10628 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
10629 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code);
10630 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token);
10631 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code);
10632 NLA_PUT(msg, NL80211_ATTR_IE, len, buf);
10633
10634 return send_and_recv_msgs(drv, msg, NULL, NULL);
10635
10636 nla_put_failure:
10637 nlmsg_free(msg);
10638 return -ENOBUFS;
10639 }
10640
10641
10642 static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer)
10643 {
10644 struct i802_bss *bss = priv;
10645 struct wpa_driver_nl80211_data *drv = bss->drv;
10646 struct nl_msg *msg;
10647 enum nl80211_tdls_operation nl80211_oper;
10648
10649 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
10650 return -EOPNOTSUPP;
10651
10652 switch (oper) {
10653 case TDLS_DISCOVERY_REQ:
10654 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ;
10655 break;
10656 case TDLS_SETUP:
10657 nl80211_oper = NL80211_TDLS_SETUP;
10658 break;
10659 case TDLS_TEARDOWN:
10660 nl80211_oper = NL80211_TDLS_TEARDOWN;
10661 break;
10662 case TDLS_ENABLE_LINK:
10663 nl80211_oper = NL80211_TDLS_ENABLE_LINK;
10664 break;
10665 case TDLS_DISABLE_LINK:
10666 nl80211_oper = NL80211_TDLS_DISABLE_LINK;
10667 break;
10668 case TDLS_ENABLE:
10669 return 0;
10670 case TDLS_DISABLE:
10671 return 0;
10672 default:
10673 return -EINVAL;
10674 }
10675
10676 msg = nlmsg_alloc();
10677 if (!msg)
10678 return -ENOMEM;
10679
10680 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER);
10681 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper);
10682 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
10683 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
10684
10685 return send_and_recv_msgs(drv, msg, NULL, NULL);
10686
10687 nla_put_failure:
10688 nlmsg_free(msg);
10689 return -ENOBUFS;
10690 }
10691
10692 #endif /* CONFIG TDLS */
10693
10694
10695 #ifdef ANDROID
10696
10697 typedef struct android_wifi_priv_cmd {
10698 char *buf;
10699 int used_len;
10700 int total_len;
10701 } android_wifi_priv_cmd;
10702
10703 static int drv_errors = 0;
10704
10705 static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv)
10706 {
10707 drv_errors++;
10708 if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) {
10709 drv_errors = 0;
10710 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED");
10711 }
10712 }
10713
10714
10715 static int android_priv_cmd(struct i802_bss *bss, const char *cmd)
10716 {
10717 struct wpa_driver_nl80211_data *drv = bss->drv;
10718 struct ifreq ifr;
10719 android_wifi_priv_cmd priv_cmd;
10720 char buf[MAX_DRV_CMD_SIZE];
10721 int ret;
10722
10723 os_memset(&ifr, 0, sizeof(ifr));
10724 os_memset(&priv_cmd, 0, sizeof(priv_cmd));
10725 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ);
10726
10727 os_memset(buf, 0, sizeof(buf));
10728 os_strlcpy(buf, cmd, sizeof(buf));
10729
10730 priv_cmd.buf = buf;
10731 priv_cmd.used_len = sizeof(buf);
10732 priv_cmd.total_len = sizeof(buf);
10733 ifr.ifr_data = &priv_cmd;
10734
10735 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr);
10736 if (ret < 0) {
10737 wpa_printf(MSG_ERROR, "%s: failed to issue private commands",
10738 __func__);
10739 wpa_driver_send_hang_msg(drv);
10740 return ret;
10741 }
10742
10743 drv_errors = 0;
10744 return 0;
10745 }
10746
10747
10748 static int android_pno_start(struct i802_bss *bss,
10749 struct wpa_driver_scan_params *params)
10750 {
10751 struct wpa_driver_nl80211_data *drv = bss->drv;
10752 struct ifreq ifr;
10753 android_wifi_priv_cmd priv_cmd;
10754 int ret = 0, i = 0, bp;
10755 char buf[WEXT_PNO_MAX_COMMAND_SIZE];
10756
10757 bp = WEXT_PNOSETUP_HEADER_SIZE;
10758 os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp);
10759 buf[bp++] = WEXT_PNO_TLV_PREFIX;
10760 buf[bp++] = WEXT_PNO_TLV_VERSION;
10761 buf[bp++] = WEXT_PNO_TLV_SUBVERSION;
10762 buf[bp++] = WEXT_PNO_TLV_RESERVED;
10763
10764 while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) {
10765 /* Check that there is enough space needed for 1 more SSID, the
10766 * other sections and null termination */
10767 if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN +
10768 WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf))
10769 break;
10770 wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan",
10771 params->ssids[i].ssid,
10772 params->ssids[i].ssid_len);
10773 buf[bp++] = WEXT_PNO_SSID_SECTION;
10774 buf[bp++] = params->ssids[i].ssid_len;
10775 os_memcpy(&buf[bp], params->ssids[i].ssid,
10776 params->ssids[i].ssid_len);
10777 bp += params->ssids[i].ssid_len;
10778 i++;
10779 }
10780
10781 buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION;
10782 os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x",
10783 WEXT_PNO_SCAN_INTERVAL);
10784 bp += WEXT_PNO_SCAN_INTERVAL_LENGTH;
10785
10786 buf[bp++] = WEXT_PNO_REPEAT_SECTION;
10787 os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x",
10788 WEXT_PNO_REPEAT);
10789 bp += WEXT_PNO_REPEAT_LENGTH;
10790
10791 buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION;
10792 os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x",
10793 WEXT_PNO_MAX_REPEAT);
10794 bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1;
10795
10796 memset(&ifr, 0, sizeof(ifr));
10797 memset(&priv_cmd, 0, sizeof(priv_cmd));
10798 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ);
10799
10800 priv_cmd.buf = buf;
10801 priv_cmd.used_len = bp;
10802 priv_cmd.total_len = bp;
10803 ifr.ifr_data = &priv_cmd;
10804
10805 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr);
10806
10807 if (ret < 0) {
10808 wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d",
10809 ret);
10810 wpa_driver_send_hang_msg(drv);
10811 return ret;
10812 }
10813
10814 drv_errors = 0;
10815
10816 return android_priv_cmd(bss, "PNOFORCE 1");
10817 }
10818
10819
10820 static int android_pno_stop(struct i802_bss *bss)
10821 {
10822 return android_priv_cmd(bss, "PNOFORCE 0");
10823 }
10824
10825 #endif /* ANDROID */
10826
10827
10828 static int driver_nl80211_set_key(const char *ifname, void *priv,
10829 enum wpa_alg alg, const u8 *addr,
10830 int key_idx, int set_tx,
10831 const u8 *seq, size_t seq_len,
10832 const u8 *key, size_t key_len)
10833 {
10834 struct i802_bss *bss = priv;
10835 return wpa_driver_nl80211_set_key(ifname, bss, alg, addr, key_idx,
10836 set_tx, seq, seq_len, key, key_len);
10837 }
10838
10839
10840 static int driver_nl80211_scan2(void *priv,
10841 struct wpa_driver_scan_params *params)
10842 {
10843 struct i802_bss *bss = priv;
10844 return wpa_driver_nl80211_scan(bss, params);
10845 }
10846
10847
10848 static int driver_nl80211_deauthenticate(void *priv, const u8 *addr,
10849 int reason_code)
10850 {
10851 struct i802_bss *bss = priv;
10852 return wpa_driver_nl80211_deauthenticate(bss, addr, reason_code);
10853 }
10854
10855
10856 static int driver_nl80211_authenticate(void *priv,
10857 struct wpa_driver_auth_params *params)
10858 {
10859 struct i802_bss *bss = priv;
10860 return wpa_driver_nl80211_authenticate(bss, params);
10861 }
10862
10863
10864 static void driver_nl80211_deinit(void *priv)
10865 {
10866 struct i802_bss *bss = priv;
10867 wpa_driver_nl80211_deinit(bss);
10868 }
10869
10870
10871 static int driver_nl80211_if_remove(void *priv, enum wpa_driver_if_type type,
10872 const char *ifname)
10873 {
10874 struct i802_bss *bss = priv;
10875 return wpa_driver_nl80211_if_remove(bss, type, ifname);
10876 }
10877
10878
10879 static int driver_nl80211_send_mlme(void *priv, const u8 *data,
10880 size_t data_len, int noack)
10881 {
10882 struct i802_bss *bss = priv;
10883 return wpa_driver_nl80211_send_mlme(bss, data, data_len, noack,
10884 0, 0, 0, 0);
10885 }
10886
10887
10888 static int driver_nl80211_sta_remove(void *priv, const u8 *addr)
10889 {
10890 struct i802_bss *bss = priv;
10891 return wpa_driver_nl80211_sta_remove(bss, addr);
10892 }
10893
10894
10895 #if defined(HOSTAPD) || defined(CONFIG_AP)
10896 static int driver_nl80211_set_sta_vlan(void *priv, const u8 *addr,
10897 const char *ifname, int vlan_id)
10898 {
10899 struct i802_bss *bss = priv;
10900 return i802_set_sta_vlan(bss, addr, ifname, vlan_id);
10901 }
10902 #endif /* HOSTAPD || CONFIG_AP */
10903
10904
10905 static int driver_nl80211_read_sta_data(void *priv,
10906 struct hostap_sta_driver_data *data,
10907 const u8 *addr)
10908 {
10909 struct i802_bss *bss = priv;
10910 return i802_read_sta_data(bss, data, addr);
10911 }
10912
10913
10914 static int driver_nl80211_send_action(void *priv, unsigned int freq,
10915 unsigned int wait_time,
10916 const u8 *dst, const u8 *src,
10917 const u8 *bssid,
10918 const u8 *data, size_t data_len,
10919 int no_cck)
10920 {
10921 struct i802_bss *bss = priv;
10922 return wpa_driver_nl80211_send_action(bss, freq, wait_time, dst, src,
10923 bssid, data, data_len, no_cck);
10924 }
10925
10926
10927 static int driver_nl80211_probe_req_report(void *priv, int report)
10928 {
10929 struct i802_bss *bss = priv;
10930 return wpa_driver_nl80211_probe_req_report(bss, report);
10931 }
10932
10933
10934 static int wpa_driver_nl80211_update_ft_ies(void *priv, const u8 *md,
10935 const u8 *ies, size_t ies_len)
10936 {
10937 int ret;
10938 struct nl_msg *msg;
10939 struct i802_bss *bss = priv;
10940 struct wpa_driver_nl80211_data *drv = bss->drv;
10941 u16 mdid = WPA_GET_LE16(md);
10942
10943 msg = nlmsg_alloc();
10944 if (!msg)
10945 return -ENOMEM;
10946
10947 wpa_printf(MSG_DEBUG, "nl80211: Updating FT IEs");
10948 nl80211_cmd(drv, msg, 0, NL80211_CMD_UPDATE_FT_IES);
10949 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
10950 NLA_PUT(msg, NL80211_ATTR_IE, ies_len, ies);
10951 NLA_PUT_U16(msg, NL80211_ATTR_MDID, mdid);
10952
10953 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
10954 if (ret) {
10955 wpa_printf(MSG_DEBUG, "nl80211: update_ft_ies failed "
10956 "err=%d (%s)", ret, strerror(-ret));
10957 }
10958
10959 return ret;
10960
10961 nla_put_failure:
10962 nlmsg_free(msg);
10963 return -ENOBUFS;
10964 }
10965
10966
10967 const u8 * wpa_driver_nl80211_get_macaddr(void *priv)
10968 {
10969 struct i802_bss *bss = priv;
10970 struct wpa_driver_nl80211_data *drv = bss->drv;
10971
10972 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE)
10973 return NULL;
10974
10975 return bss->addr;
10976 }
10977
10978
10979 static const char * scan_state_str(enum scan_states scan_state)
10980 {
10981 switch (scan_state) {
10982 case NO_SCAN:
10983 return "NO_SCAN";
10984 case SCAN_REQUESTED:
10985 return "SCAN_REQUESTED";
10986 case SCAN_STARTED:
10987 return "SCAN_STARTED";
10988 case SCAN_COMPLETED:
10989 return "SCAN_COMPLETED";
10990 case SCAN_ABORTED:
10991 return "SCAN_ABORTED";
10992 case SCHED_SCAN_STARTED:
10993 return "SCHED_SCAN_STARTED";
10994 case SCHED_SCAN_STOPPED:
10995 return "SCHED_SCAN_STOPPED";
10996 case SCHED_SCAN_RESULTS:
10997 return "SCHED_SCAN_RESULTS";
10998 }
10999
11000 return "??";
11001 }
11002
11003
11004 static int wpa_driver_nl80211_status(void *priv, char *buf, size_t buflen)
11005 {
11006 struct i802_bss *bss = priv;
11007 struct wpa_driver_nl80211_data *drv = bss->drv;
11008 int res;
11009 char *pos, *end;
11010
11011 pos = buf;
11012 end = buf + buflen;
11013
11014 res = os_snprintf(pos, end - pos,
11015 "ifindex=%d\n"
11016 "ifname=%s\n"
11017 "brname=%s\n"
11018 "addr=" MACSTR "\n"
11019 "freq=%d\n"
11020 "%s%s%s%s%s",
11021 bss->ifindex,
11022 bss->ifname,
11023 bss->brname,
11024 MAC2STR(bss->addr),
11025 bss->freq,
11026 bss->beacon_set ? "beacon_set=1\n" : "",
11027 bss->added_if_into_bridge ?
11028 "added_if_into_bridge=1\n" : "",
11029 bss->added_bridge ? "added_bridge=1\n" : "",
11030 bss->in_deinit ? "in_deinit=1\n" : "",
11031 bss->if_dynamic ? "if_dynamic=1\n" : "");
11032 if (res < 0 || res >= end - pos)
11033 return pos - buf;
11034 pos += res;
11035
11036 if (bss->wdev_id_set) {
11037 res = os_snprintf(pos, end - pos, "wdev_id=%llu\n",
11038 (unsigned long long) bss->wdev_id);
11039 if (res < 0 || res >= end - pos)
11040 return pos - buf;
11041 pos += res;
11042 }
11043
11044 res = os_snprintf(pos, end - pos,
11045 "phyname=%s\n"
11046 "drv_ifindex=%d\n"
11047 "operstate=%d\n"
11048 "scan_state=%s\n"
11049 "auth_bssid=" MACSTR "\n"
11050 "auth_attempt_bssid=" MACSTR "\n"
11051 "bssid=" MACSTR "\n"
11052 "prev_bssid=" MACSTR "\n"
11053 "associated=%d\n"
11054 "assoc_freq=%u\n"
11055 "monitor_sock=%d\n"
11056 "monitor_ifidx=%d\n"
11057 "monitor_refcount=%d\n"
11058 "last_mgmt_freq=%u\n"
11059 "eapol_tx_sock=%d\n"
11060 "%s%s%s%s%s%s%s%s%s%s%s%s%s",
11061 drv->phyname,
11062 drv->ifindex,
11063 drv->operstate,
11064 scan_state_str(drv->scan_state),
11065 MAC2STR(drv->auth_bssid),
11066 MAC2STR(drv->auth_attempt_bssid),
11067 MAC2STR(drv->bssid),
11068 MAC2STR(drv->prev_bssid),
11069 drv->associated,
11070 drv->assoc_freq,
11071 drv->monitor_sock,
11072 drv->monitor_ifidx,
11073 drv->monitor_refcount,
11074 drv->last_mgmt_freq,
11075 drv->eapol_tx_sock,
11076 drv->ignore_if_down_event ?
11077 "ignore_if_down_event=1\n" : "",
11078 drv->scan_complete_events ?
11079 "scan_complete_events=1\n" : "",
11080 drv->disabled_11b_rates ?
11081 "disabled_11b_rates=1\n" : "",
11082 drv->pending_remain_on_chan ?
11083 "pending_remain_on_chan=1\n" : "",
11084 drv->in_interface_list ? "in_interface_list=1\n" : "",
11085 drv->device_ap_sme ? "device_ap_sme=1\n" : "",
11086 drv->poll_command_supported ?
11087 "poll_command_supported=1\n" : "",
11088 drv->data_tx_status ? "data_tx_status=1\n" : "",
11089 drv->scan_for_auth ? "scan_for_auth=1\n" : "",
11090 drv->retry_auth ? "retry_auth=1\n" : "",
11091 drv->use_monitor ? "use_monitor=1\n" : "",
11092 drv->ignore_next_local_disconnect ?
11093 "ignore_next_local_disconnect=1\n" : "",
11094 drv->allow_p2p_device ? "allow_p2p_device=1\n" : "");
11095 if (res < 0 || res >= end - pos)
11096 return pos - buf;
11097 pos += res;
11098
11099 if (drv->has_capability) {
11100 res = os_snprintf(pos, end - pos,
11101 "capa.key_mgmt=0x%x\n"
11102 "capa.enc=0x%x\n"
11103 "capa.auth=0x%x\n"
11104 "capa.flags=0x%x\n"
11105 "capa.max_scan_ssids=%d\n"
11106 "capa.max_sched_scan_ssids=%d\n"
11107 "capa.sched_scan_supported=%d\n"
11108 "capa.max_match_sets=%d\n"
11109 "capa.max_remain_on_chan=%u\n"
11110 "capa.max_stations=%u\n"
11111 "capa.probe_resp_offloads=0x%x\n"
11112 "capa.max_acl_mac_addrs=%u\n"
11113 "capa.num_multichan_concurrent=%u\n",
11114 drv->capa.key_mgmt,
11115 drv->capa.enc,
11116 drv->capa.auth,
11117 drv->capa.flags,
11118 drv->capa.max_scan_ssids,
11119 drv->capa.max_sched_scan_ssids,
11120 drv->capa.sched_scan_supported,
11121 drv->capa.max_match_sets,
11122 drv->capa.max_remain_on_chan,
11123 drv->capa.max_stations,
11124 drv->capa.probe_resp_offloads,
11125 drv->capa.max_acl_mac_addrs,
11126 drv->capa.num_multichan_concurrent);
11127 if (res < 0 || res >= end - pos)
11128 return pos - buf;
11129 pos += res;
11130 }
11131
11132 return pos - buf;
11133 }
11134
11135
11136 const struct wpa_driver_ops wpa_driver_nl80211_ops = {
11137 .name = "nl80211",
11138 .desc = "Linux nl80211/cfg80211",
11139 .get_bssid = wpa_driver_nl80211_get_bssid,
11140 .get_ssid = wpa_driver_nl80211_get_ssid,
11141 .set_key = driver_nl80211_set_key,
11142 .scan2 = driver_nl80211_scan2,
11143 .sched_scan = wpa_driver_nl80211_sched_scan,
11144 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan,
11145 .get_scan_results2 = wpa_driver_nl80211_get_scan_results,
11146 .deauthenticate = driver_nl80211_deauthenticate,
11147 .authenticate = driver_nl80211_authenticate,
11148 .associate = wpa_driver_nl80211_associate,
11149 .global_init = nl80211_global_init,
11150 .global_deinit = nl80211_global_deinit,
11151 .init2 = wpa_driver_nl80211_init,
11152 .deinit = driver_nl80211_deinit,
11153 .get_capa = wpa_driver_nl80211_get_capa,
11154 .set_operstate = wpa_driver_nl80211_set_operstate,
11155 .set_supp_port = wpa_driver_nl80211_set_supp_port,
11156 .set_country = wpa_driver_nl80211_set_country,
11157 .set_ap = wpa_driver_nl80211_set_ap,
11158 .set_acl = wpa_driver_nl80211_set_acl,
11159 .if_add = wpa_driver_nl80211_if_add,
11160 .if_remove = driver_nl80211_if_remove,
11161 .send_mlme = driver_nl80211_send_mlme,
11162 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data,
11163 .sta_add = wpa_driver_nl80211_sta_add,
11164 .sta_remove = driver_nl80211_sta_remove,
11165 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol,
11166 .sta_set_flags = wpa_driver_nl80211_sta_set_flags,
11167 #ifdef HOSTAPD
11168 .hapd_init = i802_init,
11169 .hapd_deinit = i802_deinit,
11170 .set_wds_sta = i802_set_wds_sta,
11171 #endif /* HOSTAPD */
11172 #if defined(HOSTAPD) || defined(CONFIG_AP)
11173 .get_seqnum = i802_get_seqnum,
11174 .flush = i802_flush,
11175 .get_inact_sec = i802_get_inact_sec,
11176 .sta_clear_stats = i802_sta_clear_stats,
11177 .set_rts = i802_set_rts,
11178 .set_frag = i802_set_frag,
11179 .set_tx_queue_params = i802_set_tx_queue_params,
11180 .set_sta_vlan = driver_nl80211_set_sta_vlan,
11181 .sta_deauth = i802_sta_deauth,
11182 .sta_disassoc = i802_sta_disassoc,
11183 #endif /* HOSTAPD || CONFIG_AP */
11184 .read_sta_data = driver_nl80211_read_sta_data,
11185 .set_freq = i802_set_freq,
11186 .send_action = driver_nl80211_send_action,
11187 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait,
11188 .remain_on_channel = wpa_driver_nl80211_remain_on_channel,
11189 .cancel_remain_on_channel =
11190 wpa_driver_nl80211_cancel_remain_on_channel,
11191 .probe_req_report = driver_nl80211_probe_req_report,
11192 .deinit_ap = wpa_driver_nl80211_deinit_ap,
11193 .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli,
11194 .resume = wpa_driver_nl80211_resume,
11195 .send_ft_action = nl80211_send_ft_action,
11196 .signal_monitor = nl80211_signal_monitor,
11197 .signal_poll = nl80211_signal_poll,
11198 .send_frame = nl80211_send_frame,
11199 .shared_freq = wpa_driver_nl80211_shared_freq,
11200 .set_param = nl80211_set_param,
11201 .get_radio_name = nl80211_get_radio_name,
11202 .add_pmkid = nl80211_add_pmkid,
11203 .remove_pmkid = nl80211_remove_pmkid,
11204 .flush_pmkid = nl80211_flush_pmkid,
11205 .set_rekey_info = nl80211_set_rekey_info,
11206 .poll_client = nl80211_poll_client,
11207 .set_p2p_powersave = nl80211_set_p2p_powersave,
11208 .start_dfs_cac = nl80211_start_radar_detection,
11209 .stop_ap = wpa_driver_nl80211_stop_ap,
11210 #ifdef CONFIG_TDLS
11211 .send_tdls_mgmt = nl80211_send_tdls_mgmt,
11212 .tdls_oper = nl80211_tdls_oper,
11213 #endif /* CONFIG_TDLS */
11214 .update_ft_ies = wpa_driver_nl80211_update_ft_ies,
11215 .get_mac_addr = wpa_driver_nl80211_get_macaddr,
11216 .get_survey = wpa_driver_nl80211_get_survey,
11217 .status = wpa_driver_nl80211_status,
11218 };
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