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P2P: Apply unsafe frequency rules to available channels
[thirdparty/hostap.git] / src / drivers / driver_nl80211.c
1 /*
2 * Driver interaction with Linux nl80211/cfg80211
3 * Copyright (c) 2002-2014, Jouni Malinen <j@w1.fi>
4 * Copyright (c) 2003-2004, Instant802 Networks, Inc.
5 * Copyright (c) 2005-2006, Devicescape Software, Inc.
6 * Copyright (c) 2007, Johannes Berg <johannes@sipsolutions.net>
7 * Copyright (c) 2009-2010, Atheros Communications
8 *
9 * This software may be distributed under the terms of the BSD license.
10 * See README for more details.
11 */
12
13 #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/qca-vendor.h"
32 #include "common/ieee802_11_defs.h"
33 #include "common/ieee802_11_common.h"
34 #include "l2_packet/l2_packet.h"
35 #include "netlink.h"
36 #include "linux_ioctl.h"
37 #include "radiotap.h"
38 #include "radiotap_iter.h"
39 #include "rfkill.h"
40 #include "driver.h"
41
42 #ifndef SO_WIFI_STATUS
43 # if defined(__sparc__)
44 # define SO_WIFI_STATUS 0x0025
45 # elif defined(__parisc__)
46 # define SO_WIFI_STATUS 0x4022
47 # else
48 # define SO_WIFI_STATUS 41
49 # endif
50
51 # define SCM_WIFI_STATUS SO_WIFI_STATUS
52 #endif
53
54 #ifndef SO_EE_ORIGIN_TXSTATUS
55 #define SO_EE_ORIGIN_TXSTATUS 4
56 #endif
57
58 #ifndef PACKET_TX_TIMESTAMP
59 #define PACKET_TX_TIMESTAMP 16
60 #endif
61
62 #ifdef ANDROID
63 #include "android_drv.h"
64 #endif /* ANDROID */
65 #ifdef CONFIG_LIBNL20
66 /* libnl 2.0 compatibility code */
67 #define nl_handle nl_sock
68 #define nl80211_handle_alloc nl_socket_alloc_cb
69 #define nl80211_handle_destroy nl_socket_free
70 #else
71 /*
72 * libnl 1.1 has a bug, it tries to allocate socket numbers densely
73 * but when you free a socket again it will mess up its bitmap and
74 * and use the wrong number the next time it needs a socket ID.
75 * Therefore, we wrap the handle alloc/destroy and add our own pid
76 * accounting.
77 */
78 static uint32_t port_bitmap[32] = { 0 };
79
80 static struct nl_handle *nl80211_handle_alloc(void *cb)
81 {
82 struct nl_handle *handle;
83 uint32_t pid = getpid() & 0x3FFFFF;
84 int i;
85
86 handle = nl_handle_alloc_cb(cb);
87
88 for (i = 0; i < 1024; i++) {
89 if (port_bitmap[i / 32] & (1 << (i % 32)))
90 continue;
91 port_bitmap[i / 32] |= 1 << (i % 32);
92 pid += i << 22;
93 break;
94 }
95
96 nl_socket_set_local_port(handle, pid);
97
98 return handle;
99 }
100
101 static void nl80211_handle_destroy(struct nl_handle *handle)
102 {
103 uint32_t port = nl_socket_get_local_port(handle);
104
105 port >>= 22;
106 port_bitmap[port / 32] &= ~(1 << (port % 32));
107
108 nl_handle_destroy(handle);
109 }
110 #endif /* CONFIG_LIBNL20 */
111
112
113 #ifdef ANDROID
114 /* system/core/libnl_2 does not include nl_socket_set_nonblocking() */
115 static int android_nl_socket_set_nonblocking(struct nl_handle *handle)
116 {
117 return fcntl(nl_socket_get_fd(handle), F_SETFL, O_NONBLOCK);
118 }
119 #undef nl_socket_set_nonblocking
120 #define nl_socket_set_nonblocking(h) android_nl_socket_set_nonblocking(h)
121 #endif /* ANDROID */
122
123
124 static struct nl_handle * nl_create_handle(struct nl_cb *cb, const char *dbg)
125 {
126 struct nl_handle *handle;
127
128 handle = nl80211_handle_alloc(cb);
129 if (handle == NULL) {
130 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
131 "callbacks (%s)", dbg);
132 return NULL;
133 }
134
135 if (genl_connect(handle)) {
136 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
137 "netlink (%s)", dbg);
138 nl80211_handle_destroy(handle);
139 return NULL;
140 }
141
142 return handle;
143 }
144
145
146 static void nl_destroy_handles(struct nl_handle **handle)
147 {
148 if (*handle == NULL)
149 return;
150 nl80211_handle_destroy(*handle);
151 *handle = NULL;
152 }
153
154
155 #if __WORDSIZE == 64
156 #define ELOOP_SOCKET_INVALID (intptr_t) 0x8888888888888889ULL
157 #else
158 #define ELOOP_SOCKET_INVALID (intptr_t) 0x88888889ULL
159 #endif
160
161 static void nl80211_register_eloop_read(struct nl_handle **handle,
162 eloop_sock_handler handler,
163 void *eloop_data)
164 {
165 nl_socket_set_nonblocking(*handle);
166 eloop_register_read_sock(nl_socket_get_fd(*handle), handler,
167 eloop_data, *handle);
168 *handle = (void *) (((intptr_t) *handle) ^ ELOOP_SOCKET_INVALID);
169 }
170
171
172 static void nl80211_destroy_eloop_handle(struct nl_handle **handle)
173 {
174 *handle = (void *) (((intptr_t) *handle) ^ ELOOP_SOCKET_INVALID);
175 eloop_unregister_read_sock(nl_socket_get_fd(*handle));
176 nl_destroy_handles(handle);
177 }
178
179
180 #ifndef IFF_LOWER_UP
181 #define IFF_LOWER_UP 0x10000 /* driver signals L1 up */
182 #endif
183 #ifndef IFF_DORMANT
184 #define IFF_DORMANT 0x20000 /* driver signals dormant */
185 #endif
186
187 #ifndef IF_OPER_DORMANT
188 #define IF_OPER_DORMANT 5
189 #endif
190 #ifndef IF_OPER_UP
191 #define IF_OPER_UP 6
192 #endif
193
194 struct nl80211_global {
195 struct dl_list interfaces;
196 int if_add_ifindex;
197 u64 if_add_wdevid;
198 int if_add_wdevid_set;
199 struct netlink_data *netlink;
200 struct nl_cb *nl_cb;
201 struct nl_handle *nl;
202 int nl80211_id;
203 int ioctl_sock; /* socket for ioctl() use */
204
205 struct nl_handle *nl_event;
206 };
207
208 struct nl80211_wiphy_data {
209 struct dl_list list;
210 struct dl_list bsss;
211 struct dl_list drvs;
212
213 struct nl_handle *nl_beacons;
214 struct nl_cb *nl_cb;
215
216 int wiphy_idx;
217 };
218
219 static void nl80211_global_deinit(void *priv);
220
221 struct i802_bss {
222 struct wpa_driver_nl80211_data *drv;
223 struct i802_bss *next;
224 int ifindex;
225 u64 wdev_id;
226 char ifname[IFNAMSIZ + 1];
227 char brname[IFNAMSIZ];
228 unsigned int beacon_set:1;
229 unsigned int added_if_into_bridge:1;
230 unsigned int added_bridge:1;
231 unsigned int in_deinit:1;
232 unsigned int wdev_id_set:1;
233 unsigned int added_if:1;
234
235 u8 addr[ETH_ALEN];
236
237 int freq;
238 int if_dynamic;
239
240 void *ctx;
241 struct nl_handle *nl_preq, *nl_mgmt;
242 struct nl_cb *nl_cb;
243
244 struct nl80211_wiphy_data *wiphy_data;
245 struct dl_list wiphy_list;
246 };
247
248 struct wpa_driver_nl80211_data {
249 struct nl80211_global *global;
250 struct dl_list list;
251 struct dl_list wiphy_list;
252 char phyname[32];
253 void *ctx;
254 int ifindex;
255 int if_removed;
256 int if_disabled;
257 int ignore_if_down_event;
258 struct rfkill_data *rfkill;
259 struct wpa_driver_capa capa;
260 u8 *extended_capa, *extended_capa_mask;
261 unsigned int extended_capa_len;
262 int has_capability;
263
264 int operstate;
265
266 int scan_complete_events;
267 enum scan_states {
268 NO_SCAN, SCAN_REQUESTED, SCAN_STARTED, SCAN_COMPLETED,
269 SCAN_ABORTED, SCHED_SCAN_STARTED, SCHED_SCAN_STOPPED,
270 SCHED_SCAN_RESULTS
271 } scan_state;
272
273 struct nl_cb *nl_cb;
274
275 u8 auth_bssid[ETH_ALEN];
276 u8 auth_attempt_bssid[ETH_ALEN];
277 u8 bssid[ETH_ALEN];
278 u8 prev_bssid[ETH_ALEN];
279 int associated;
280 u8 ssid[32];
281 size_t ssid_len;
282 enum nl80211_iftype nlmode;
283 enum nl80211_iftype ap_scan_as_station;
284 unsigned int assoc_freq;
285
286 int monitor_sock;
287 int monitor_ifidx;
288 int monitor_refcount;
289
290 unsigned int disabled_11b_rates:1;
291 unsigned int pending_remain_on_chan:1;
292 unsigned int in_interface_list:1;
293 unsigned int device_ap_sme:1;
294 unsigned int poll_command_supported:1;
295 unsigned int data_tx_status:1;
296 unsigned int scan_for_auth:1;
297 unsigned int retry_auth:1;
298 unsigned int use_monitor:1;
299 unsigned int ignore_next_local_disconnect:1;
300 unsigned int allow_p2p_device:1;
301 unsigned int hostapd:1;
302 unsigned int start_mode_ap:1;
303 unsigned int start_iface_up:1;
304
305 u64 remain_on_chan_cookie;
306 u64 send_action_cookie;
307
308 unsigned int last_mgmt_freq;
309
310 struct wpa_driver_scan_filter *filter_ssids;
311 size_t num_filter_ssids;
312
313 struct i802_bss *first_bss;
314
315 int eapol_tx_sock;
316
317 int eapol_sock; /* socket for EAPOL frames */
318
319 int default_if_indices[16];
320 int *if_indices;
321 int num_if_indices;
322
323 /* From failed authentication command */
324 int auth_freq;
325 u8 auth_bssid_[ETH_ALEN];
326 u8 auth_ssid[32];
327 size_t auth_ssid_len;
328 int auth_alg;
329 u8 *auth_ie;
330 size_t auth_ie_len;
331 u8 auth_wep_key[4][16];
332 size_t auth_wep_key_len[4];
333 int auth_wep_tx_keyidx;
334 int auth_local_state_change;
335 int auth_p2p;
336 };
337
338
339 static void wpa_driver_nl80211_deinit(struct i802_bss *bss);
340 static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx,
341 void *timeout_ctx);
342 static int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
343 enum nl80211_iftype nlmode);
344 static int
345 wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv,
346 const u8 *set_addr, int first);
347 static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
348 const u8 *addr, int cmd, u16 reason_code,
349 int local_state_change);
350 static void nl80211_remove_monitor_interface(
351 struct wpa_driver_nl80211_data *drv);
352 static int nl80211_send_frame_cmd(struct i802_bss *bss,
353 unsigned int freq, unsigned int wait,
354 const u8 *buf, size_t buf_len, u64 *cookie,
355 int no_cck, int no_ack, int offchanok);
356 static int nl80211_register_frame(struct i802_bss *bss,
357 struct nl_handle *hl_handle,
358 u16 type, const u8 *match, size_t match_len);
359 static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss,
360 int report);
361 #ifdef ANDROID
362 static int android_pno_start(struct i802_bss *bss,
363 struct wpa_driver_scan_params *params);
364 static int android_pno_stop(struct i802_bss *bss);
365 extern int wpa_driver_nl80211_driver_cmd(void *priv, char *cmd, char *buf,
366 size_t buf_len);
367 #endif /* ANDROID */
368 #ifdef ANDROID_P2P
369 int wpa_driver_set_p2p_noa(void *priv, u8 count, int start, int duration);
370 int wpa_driver_get_p2p_noa(void *priv, u8 *buf, size_t len);
371 int wpa_driver_set_p2p_ps(void *priv, int legacy_ps, int opp_ps, int ctwindow);
372 int wpa_driver_set_ap_wps_p2p_ie(void *priv, const struct wpabuf *beacon,
373 const struct wpabuf *proberesp,
374 const struct wpabuf *assocresp);
375 #endif /* ANDROID_P2P */
376
377 static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
378 static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
379 static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
380 static int wpa_driver_nl80211_if_remove(struct i802_bss *bss,
381 enum wpa_driver_if_type type,
382 const char *ifname);
383
384 static int wpa_driver_nl80211_set_freq(struct i802_bss *bss,
385 struct hostapd_freq_params *freq);
386 static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
387 int ifindex, int disabled);
388
389 static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv);
390 static int wpa_driver_nl80211_authenticate_retry(
391 struct wpa_driver_nl80211_data *drv);
392
393 static int i802_set_iface_flags(struct i802_bss *bss, int up);
394
395
396 static const char * nl80211_command_to_string(enum nl80211_commands cmd)
397 {
398 #define C2S(x) case x: return #x;
399 switch (cmd) {
400 C2S(NL80211_CMD_UNSPEC)
401 C2S(NL80211_CMD_GET_WIPHY)
402 C2S(NL80211_CMD_SET_WIPHY)
403 C2S(NL80211_CMD_NEW_WIPHY)
404 C2S(NL80211_CMD_DEL_WIPHY)
405 C2S(NL80211_CMD_GET_INTERFACE)
406 C2S(NL80211_CMD_SET_INTERFACE)
407 C2S(NL80211_CMD_NEW_INTERFACE)
408 C2S(NL80211_CMD_DEL_INTERFACE)
409 C2S(NL80211_CMD_GET_KEY)
410 C2S(NL80211_CMD_SET_KEY)
411 C2S(NL80211_CMD_NEW_KEY)
412 C2S(NL80211_CMD_DEL_KEY)
413 C2S(NL80211_CMD_GET_BEACON)
414 C2S(NL80211_CMD_SET_BEACON)
415 C2S(NL80211_CMD_START_AP)
416 C2S(NL80211_CMD_STOP_AP)
417 C2S(NL80211_CMD_GET_STATION)
418 C2S(NL80211_CMD_SET_STATION)
419 C2S(NL80211_CMD_NEW_STATION)
420 C2S(NL80211_CMD_DEL_STATION)
421 C2S(NL80211_CMD_GET_MPATH)
422 C2S(NL80211_CMD_SET_MPATH)
423 C2S(NL80211_CMD_NEW_MPATH)
424 C2S(NL80211_CMD_DEL_MPATH)
425 C2S(NL80211_CMD_SET_BSS)
426 C2S(NL80211_CMD_SET_REG)
427 C2S(NL80211_CMD_REQ_SET_REG)
428 C2S(NL80211_CMD_GET_MESH_CONFIG)
429 C2S(NL80211_CMD_SET_MESH_CONFIG)
430 C2S(NL80211_CMD_SET_MGMT_EXTRA_IE)
431 C2S(NL80211_CMD_GET_REG)
432 C2S(NL80211_CMD_GET_SCAN)
433 C2S(NL80211_CMD_TRIGGER_SCAN)
434 C2S(NL80211_CMD_NEW_SCAN_RESULTS)
435 C2S(NL80211_CMD_SCAN_ABORTED)
436 C2S(NL80211_CMD_REG_CHANGE)
437 C2S(NL80211_CMD_AUTHENTICATE)
438 C2S(NL80211_CMD_ASSOCIATE)
439 C2S(NL80211_CMD_DEAUTHENTICATE)
440 C2S(NL80211_CMD_DISASSOCIATE)
441 C2S(NL80211_CMD_MICHAEL_MIC_FAILURE)
442 C2S(NL80211_CMD_REG_BEACON_HINT)
443 C2S(NL80211_CMD_JOIN_IBSS)
444 C2S(NL80211_CMD_LEAVE_IBSS)
445 C2S(NL80211_CMD_TESTMODE)
446 C2S(NL80211_CMD_CONNECT)
447 C2S(NL80211_CMD_ROAM)
448 C2S(NL80211_CMD_DISCONNECT)
449 C2S(NL80211_CMD_SET_WIPHY_NETNS)
450 C2S(NL80211_CMD_GET_SURVEY)
451 C2S(NL80211_CMD_NEW_SURVEY_RESULTS)
452 C2S(NL80211_CMD_SET_PMKSA)
453 C2S(NL80211_CMD_DEL_PMKSA)
454 C2S(NL80211_CMD_FLUSH_PMKSA)
455 C2S(NL80211_CMD_REMAIN_ON_CHANNEL)
456 C2S(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL)
457 C2S(NL80211_CMD_SET_TX_BITRATE_MASK)
458 C2S(NL80211_CMD_REGISTER_FRAME)
459 C2S(NL80211_CMD_FRAME)
460 C2S(NL80211_CMD_FRAME_TX_STATUS)
461 C2S(NL80211_CMD_SET_POWER_SAVE)
462 C2S(NL80211_CMD_GET_POWER_SAVE)
463 C2S(NL80211_CMD_SET_CQM)
464 C2S(NL80211_CMD_NOTIFY_CQM)
465 C2S(NL80211_CMD_SET_CHANNEL)
466 C2S(NL80211_CMD_SET_WDS_PEER)
467 C2S(NL80211_CMD_FRAME_WAIT_CANCEL)
468 C2S(NL80211_CMD_JOIN_MESH)
469 C2S(NL80211_CMD_LEAVE_MESH)
470 C2S(NL80211_CMD_UNPROT_DEAUTHENTICATE)
471 C2S(NL80211_CMD_UNPROT_DISASSOCIATE)
472 C2S(NL80211_CMD_NEW_PEER_CANDIDATE)
473 C2S(NL80211_CMD_GET_WOWLAN)
474 C2S(NL80211_CMD_SET_WOWLAN)
475 C2S(NL80211_CMD_START_SCHED_SCAN)
476 C2S(NL80211_CMD_STOP_SCHED_SCAN)
477 C2S(NL80211_CMD_SCHED_SCAN_RESULTS)
478 C2S(NL80211_CMD_SCHED_SCAN_STOPPED)
479 C2S(NL80211_CMD_SET_REKEY_OFFLOAD)
480 C2S(NL80211_CMD_PMKSA_CANDIDATE)
481 C2S(NL80211_CMD_TDLS_OPER)
482 C2S(NL80211_CMD_TDLS_MGMT)
483 C2S(NL80211_CMD_UNEXPECTED_FRAME)
484 C2S(NL80211_CMD_PROBE_CLIENT)
485 C2S(NL80211_CMD_REGISTER_BEACONS)
486 C2S(NL80211_CMD_UNEXPECTED_4ADDR_FRAME)
487 C2S(NL80211_CMD_SET_NOACK_MAP)
488 C2S(NL80211_CMD_CH_SWITCH_NOTIFY)
489 C2S(NL80211_CMD_START_P2P_DEVICE)
490 C2S(NL80211_CMD_STOP_P2P_DEVICE)
491 C2S(NL80211_CMD_CONN_FAILED)
492 C2S(NL80211_CMD_SET_MCAST_RATE)
493 C2S(NL80211_CMD_SET_MAC_ACL)
494 C2S(NL80211_CMD_RADAR_DETECT)
495 C2S(NL80211_CMD_GET_PROTOCOL_FEATURES)
496 C2S(NL80211_CMD_UPDATE_FT_IES)
497 C2S(NL80211_CMD_FT_EVENT)
498 C2S(NL80211_CMD_CRIT_PROTOCOL_START)
499 C2S(NL80211_CMD_CRIT_PROTOCOL_STOP)
500 C2S(NL80211_CMD_GET_COALESCE)
501 C2S(NL80211_CMD_SET_COALESCE)
502 C2S(NL80211_CMD_CHANNEL_SWITCH)
503 C2S(NL80211_CMD_VENDOR)
504 C2S(NL80211_CMD_SET_QOS_MAP)
505 default:
506 return "NL80211_CMD_UNKNOWN";
507 }
508 #undef C2S
509 }
510
511
512 /* Converts nl80211_chan_width to a common format */
513 static enum chan_width convert2width(int width)
514 {
515 switch (width) {
516 case NL80211_CHAN_WIDTH_20_NOHT:
517 return CHAN_WIDTH_20_NOHT;
518 case NL80211_CHAN_WIDTH_20:
519 return CHAN_WIDTH_20;
520 case NL80211_CHAN_WIDTH_40:
521 return CHAN_WIDTH_40;
522 case NL80211_CHAN_WIDTH_80:
523 return CHAN_WIDTH_80;
524 case NL80211_CHAN_WIDTH_80P80:
525 return CHAN_WIDTH_80P80;
526 case NL80211_CHAN_WIDTH_160:
527 return CHAN_WIDTH_160;
528 }
529 return CHAN_WIDTH_UNKNOWN;
530 }
531
532
533 static int is_ap_interface(enum nl80211_iftype nlmode)
534 {
535 return (nlmode == NL80211_IFTYPE_AP ||
536 nlmode == NL80211_IFTYPE_P2P_GO);
537 }
538
539
540 static int is_sta_interface(enum nl80211_iftype nlmode)
541 {
542 return (nlmode == NL80211_IFTYPE_STATION ||
543 nlmode == NL80211_IFTYPE_P2P_CLIENT);
544 }
545
546
547 static int is_p2p_net_interface(enum nl80211_iftype nlmode)
548 {
549 return (nlmode == NL80211_IFTYPE_P2P_CLIENT ||
550 nlmode == NL80211_IFTYPE_P2P_GO);
551 }
552
553
554 static void nl80211_mark_disconnected(struct wpa_driver_nl80211_data *drv)
555 {
556 if (drv->associated)
557 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN);
558 drv->associated = 0;
559 os_memset(drv->bssid, 0, ETH_ALEN);
560 }
561
562
563 struct nl80211_bss_info_arg {
564 struct wpa_driver_nl80211_data *drv;
565 struct wpa_scan_results *res;
566 unsigned int assoc_freq;
567 u8 assoc_bssid[ETH_ALEN];
568 };
569
570 static int bss_info_handler(struct nl_msg *msg, void *arg);
571
572
573 /* nl80211 code */
574 static int ack_handler(struct nl_msg *msg, void *arg)
575 {
576 int *err = arg;
577 *err = 0;
578 return NL_STOP;
579 }
580
581 static int finish_handler(struct nl_msg *msg, void *arg)
582 {
583 int *ret = arg;
584 *ret = 0;
585 return NL_SKIP;
586 }
587
588 static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err,
589 void *arg)
590 {
591 int *ret = arg;
592 *ret = err->error;
593 return NL_SKIP;
594 }
595
596
597 static int no_seq_check(struct nl_msg *msg, void *arg)
598 {
599 return NL_OK;
600 }
601
602
603 static int send_and_recv(struct nl80211_global *global,
604 struct nl_handle *nl_handle, struct nl_msg *msg,
605 int (*valid_handler)(struct nl_msg *, void *),
606 void *valid_data)
607 {
608 struct nl_cb *cb;
609 int err = -ENOMEM;
610
611 cb = nl_cb_clone(global->nl_cb);
612 if (!cb)
613 goto out;
614
615 err = nl_send_auto_complete(nl_handle, msg);
616 if (err < 0)
617 goto out;
618
619 err = 1;
620
621 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
622 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
623 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
624
625 if (valid_handler)
626 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM,
627 valid_handler, valid_data);
628
629 while (err > 0) {
630 int res = nl_recvmsgs(nl_handle, cb);
631 if (res) {
632 wpa_printf(MSG_INFO,
633 "nl80211: %s->nl_recvmsgs failed: %d",
634 __func__, res);
635 }
636 }
637 out:
638 nl_cb_put(cb);
639 nlmsg_free(msg);
640 return err;
641 }
642
643
644 static int send_and_recv_msgs_global(struct nl80211_global *global,
645 struct nl_msg *msg,
646 int (*valid_handler)(struct nl_msg *, void *),
647 void *valid_data)
648 {
649 return send_and_recv(global, global->nl, msg, valid_handler,
650 valid_data);
651 }
652
653
654 static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv,
655 struct nl_msg *msg,
656 int (*valid_handler)(struct nl_msg *, void *),
657 void *valid_data)
658 {
659 return send_and_recv(drv->global, drv->global->nl, msg,
660 valid_handler, valid_data);
661 }
662
663
664 struct family_data {
665 const char *group;
666 int id;
667 };
668
669
670 static int nl80211_set_iface_id(struct nl_msg *msg, struct i802_bss *bss)
671 {
672 if (bss->wdev_id_set)
673 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id);
674 else
675 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
676 return 0;
677
678 nla_put_failure:
679 return -1;
680 }
681
682
683 static int family_handler(struct nl_msg *msg, void *arg)
684 {
685 struct family_data *res = arg;
686 struct nlattr *tb[CTRL_ATTR_MAX + 1];
687 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
688 struct nlattr *mcgrp;
689 int i;
690
691 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
692 genlmsg_attrlen(gnlh, 0), NULL);
693 if (!tb[CTRL_ATTR_MCAST_GROUPS])
694 return NL_SKIP;
695
696 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) {
697 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1];
698 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp),
699 nla_len(mcgrp), NULL);
700 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] ||
701 !tb2[CTRL_ATTR_MCAST_GRP_ID] ||
702 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]),
703 res->group,
704 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0)
705 continue;
706 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]);
707 break;
708 };
709
710 return NL_SKIP;
711 }
712
713
714 static int nl_get_multicast_id(struct nl80211_global *global,
715 const char *family, const char *group)
716 {
717 struct nl_msg *msg;
718 int ret = -1;
719 struct family_data res = { group, -ENOENT };
720
721 msg = nlmsg_alloc();
722 if (!msg)
723 return -ENOMEM;
724 genlmsg_put(msg, 0, 0, genl_ctrl_resolve(global->nl, "nlctrl"),
725 0, 0, CTRL_CMD_GETFAMILY, 0);
726 NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family);
727
728 ret = send_and_recv_msgs_global(global, msg, family_handler, &res);
729 msg = NULL;
730 if (ret == 0)
731 ret = res.id;
732
733 nla_put_failure:
734 nlmsg_free(msg);
735 return ret;
736 }
737
738
739 static void * nl80211_cmd(struct wpa_driver_nl80211_data *drv,
740 struct nl_msg *msg, int flags, uint8_t cmd)
741 {
742 return genlmsg_put(msg, 0, 0, drv->global->nl80211_id,
743 0, flags, cmd, 0);
744 }
745
746
747 struct wiphy_idx_data {
748 int wiphy_idx;
749 enum nl80211_iftype nlmode;
750 u8 *macaddr;
751 };
752
753
754 static int netdev_info_handler(struct nl_msg *msg, void *arg)
755 {
756 struct nlattr *tb[NL80211_ATTR_MAX + 1];
757 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
758 struct wiphy_idx_data *info = arg;
759
760 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
761 genlmsg_attrlen(gnlh, 0), NULL);
762
763 if (tb[NL80211_ATTR_WIPHY])
764 info->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
765
766 if (tb[NL80211_ATTR_IFTYPE])
767 info->nlmode = nla_get_u32(tb[NL80211_ATTR_IFTYPE]);
768
769 if (tb[NL80211_ATTR_MAC] && info->macaddr)
770 os_memcpy(info->macaddr, nla_data(tb[NL80211_ATTR_MAC]),
771 ETH_ALEN);
772
773 return NL_SKIP;
774 }
775
776
777 static int nl80211_get_wiphy_index(struct i802_bss *bss)
778 {
779 struct nl_msg *msg;
780 struct wiphy_idx_data data = {
781 .wiphy_idx = -1,
782 .macaddr = NULL,
783 };
784
785 msg = nlmsg_alloc();
786 if (!msg)
787 return NL80211_IFTYPE_UNSPECIFIED;
788
789 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE);
790
791 if (nl80211_set_iface_id(msg, bss) < 0)
792 goto nla_put_failure;
793
794 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0)
795 return data.wiphy_idx;
796 msg = NULL;
797 nla_put_failure:
798 nlmsg_free(msg);
799 return -1;
800 }
801
802
803 static enum nl80211_iftype nl80211_get_ifmode(struct i802_bss *bss)
804 {
805 struct nl_msg *msg;
806 struct wiphy_idx_data data = {
807 .nlmode = NL80211_IFTYPE_UNSPECIFIED,
808 .macaddr = NULL,
809 };
810
811 msg = nlmsg_alloc();
812 if (!msg)
813 return -1;
814
815 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE);
816
817 if (nl80211_set_iface_id(msg, bss) < 0)
818 goto nla_put_failure;
819
820 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0)
821 return data.nlmode;
822 msg = NULL;
823 nla_put_failure:
824 nlmsg_free(msg);
825 return NL80211_IFTYPE_UNSPECIFIED;
826 }
827
828
829 static int nl80211_get_macaddr(struct i802_bss *bss)
830 {
831 struct nl_msg *msg;
832 struct wiphy_idx_data data = {
833 .macaddr = bss->addr,
834 };
835
836 msg = nlmsg_alloc();
837 if (!msg)
838 return NL80211_IFTYPE_UNSPECIFIED;
839
840 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE);
841 if (nl80211_set_iface_id(msg, bss) < 0)
842 goto nla_put_failure;
843
844 return send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data);
845
846 nla_put_failure:
847 nlmsg_free(msg);
848 return NL80211_IFTYPE_UNSPECIFIED;
849 }
850
851
852 static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv,
853 struct nl80211_wiphy_data *w)
854 {
855 struct nl_msg *msg;
856 int ret = -1;
857
858 msg = nlmsg_alloc();
859 if (!msg)
860 return -1;
861
862 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_BEACONS);
863
864 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, w->wiphy_idx);
865
866 ret = send_and_recv(drv->global, w->nl_beacons, msg, NULL, NULL);
867 msg = NULL;
868 if (ret) {
869 wpa_printf(MSG_DEBUG, "nl80211: Register beacons command "
870 "failed: ret=%d (%s)",
871 ret, strerror(-ret));
872 goto nla_put_failure;
873 }
874 ret = 0;
875 nla_put_failure:
876 nlmsg_free(msg);
877 return ret;
878 }
879
880
881 static void nl80211_recv_beacons(int sock, void *eloop_ctx, void *handle)
882 {
883 struct nl80211_wiphy_data *w = eloop_ctx;
884 int res;
885
886 wpa_printf(MSG_EXCESSIVE, "nl80211: Beacon event message available");
887
888 res = nl_recvmsgs(handle, w->nl_cb);
889 if (res) {
890 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d",
891 __func__, res);
892 }
893 }
894
895
896 static int process_beacon_event(struct nl_msg *msg, void *arg)
897 {
898 struct nl80211_wiphy_data *w = arg;
899 struct wpa_driver_nl80211_data *drv;
900 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
901 struct nlattr *tb[NL80211_ATTR_MAX + 1];
902 union wpa_event_data event;
903
904 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
905 genlmsg_attrlen(gnlh, 0), NULL);
906
907 if (gnlh->cmd != NL80211_CMD_FRAME) {
908 wpa_printf(MSG_DEBUG, "nl80211: Unexpected beacon event? (%d)",
909 gnlh->cmd);
910 return NL_SKIP;
911 }
912
913 if (!tb[NL80211_ATTR_FRAME])
914 return NL_SKIP;
915
916 dl_list_for_each(drv, &w->drvs, struct wpa_driver_nl80211_data,
917 wiphy_list) {
918 os_memset(&event, 0, sizeof(event));
919 event.rx_mgmt.frame = nla_data(tb[NL80211_ATTR_FRAME]);
920 event.rx_mgmt.frame_len = nla_len(tb[NL80211_ATTR_FRAME]);
921 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
922 }
923
924 return NL_SKIP;
925 }
926
927
928 static struct nl80211_wiphy_data *
929 nl80211_get_wiphy_data_ap(struct i802_bss *bss)
930 {
931 static DEFINE_DL_LIST(nl80211_wiphys);
932 struct nl80211_wiphy_data *w;
933 int wiphy_idx, found = 0;
934 struct i802_bss *tmp_bss;
935
936 if (bss->wiphy_data != NULL)
937 return bss->wiphy_data;
938
939 wiphy_idx = nl80211_get_wiphy_index(bss);
940
941 dl_list_for_each(w, &nl80211_wiphys, struct nl80211_wiphy_data, list) {
942 if (w->wiphy_idx == wiphy_idx)
943 goto add;
944 }
945
946 /* alloc new one */
947 w = os_zalloc(sizeof(*w));
948 if (w == NULL)
949 return NULL;
950 w->wiphy_idx = wiphy_idx;
951 dl_list_init(&w->bsss);
952 dl_list_init(&w->drvs);
953
954 w->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
955 if (!w->nl_cb) {
956 os_free(w);
957 return NULL;
958 }
959 nl_cb_set(w->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL);
960 nl_cb_set(w->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_beacon_event,
961 w);
962
963 w->nl_beacons = nl_create_handle(bss->drv->global->nl_cb,
964 "wiphy beacons");
965 if (w->nl_beacons == NULL) {
966 os_free(w);
967 return NULL;
968 }
969
970 if (nl80211_register_beacons(bss->drv, w)) {
971 nl_destroy_handles(&w->nl_beacons);
972 os_free(w);
973 return NULL;
974 }
975
976 nl80211_register_eloop_read(&w->nl_beacons, nl80211_recv_beacons, w);
977
978 dl_list_add(&nl80211_wiphys, &w->list);
979
980 add:
981 /* drv entry for this bss already there? */
982 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) {
983 if (tmp_bss->drv == bss->drv) {
984 found = 1;
985 break;
986 }
987 }
988 /* if not add it */
989 if (!found)
990 dl_list_add(&w->drvs, &bss->drv->wiphy_list);
991
992 dl_list_add(&w->bsss, &bss->wiphy_list);
993 bss->wiphy_data = w;
994 return w;
995 }
996
997
998 static void nl80211_put_wiphy_data_ap(struct i802_bss *bss)
999 {
1000 struct nl80211_wiphy_data *w = bss->wiphy_data;
1001 struct i802_bss *tmp_bss;
1002 int found = 0;
1003
1004 if (w == NULL)
1005 return;
1006 bss->wiphy_data = NULL;
1007 dl_list_del(&bss->wiphy_list);
1008
1009 /* still any for this drv present? */
1010 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) {
1011 if (tmp_bss->drv == bss->drv) {
1012 found = 1;
1013 break;
1014 }
1015 }
1016 /* if not remove it */
1017 if (!found)
1018 dl_list_del(&bss->drv->wiphy_list);
1019
1020 if (!dl_list_empty(&w->bsss))
1021 return;
1022
1023 nl80211_destroy_eloop_handle(&w->nl_beacons);
1024
1025 nl_cb_put(w->nl_cb);
1026 dl_list_del(&w->list);
1027 os_free(w);
1028 }
1029
1030
1031 static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid)
1032 {
1033 struct i802_bss *bss = priv;
1034 struct wpa_driver_nl80211_data *drv = bss->drv;
1035 if (!drv->associated)
1036 return -1;
1037 os_memcpy(bssid, drv->bssid, ETH_ALEN);
1038 return 0;
1039 }
1040
1041
1042 static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid)
1043 {
1044 struct i802_bss *bss = priv;
1045 struct wpa_driver_nl80211_data *drv = bss->drv;
1046 if (!drv->associated)
1047 return -1;
1048 os_memcpy(ssid, drv->ssid, drv->ssid_len);
1049 return drv->ssid_len;
1050 }
1051
1052
1053 static void wpa_driver_nl80211_event_newlink(
1054 struct wpa_driver_nl80211_data *drv, char *ifname)
1055 {
1056 union wpa_event_data event;
1057
1058 if (os_strcmp(drv->first_bss->ifname, ifname) == 0) {
1059 if (if_nametoindex(drv->first_bss->ifname) == 0) {
1060 wpa_printf(MSG_DEBUG, "nl80211: Interface %s does not exist - ignore RTM_NEWLINK",
1061 drv->first_bss->ifname);
1062 return;
1063 }
1064 if (!drv->if_removed)
1065 return;
1066 wpa_printf(MSG_DEBUG, "nl80211: Mark if_removed=0 for %s based on RTM_NEWLINK event",
1067 drv->first_bss->ifname);
1068 drv->if_removed = 0;
1069 }
1070
1071 os_memset(&event, 0, sizeof(event));
1072 os_strlcpy(event.interface_status.ifname, ifname,
1073 sizeof(event.interface_status.ifname));
1074 event.interface_status.ievent = EVENT_INTERFACE_ADDED;
1075 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event);
1076 }
1077
1078
1079 static void wpa_driver_nl80211_event_dellink(
1080 struct wpa_driver_nl80211_data *drv, char *ifname)
1081 {
1082 union wpa_event_data event;
1083
1084 if (os_strcmp(drv->first_bss->ifname, ifname) == 0) {
1085 if (drv->if_removed) {
1086 wpa_printf(MSG_DEBUG, "nl80211: if_removed already set - ignore RTM_DELLINK event for %s",
1087 ifname);
1088 return;
1089 }
1090 wpa_printf(MSG_DEBUG, "RTM_DELLINK: Interface '%s' removed - mark if_removed=1",
1091 ifname);
1092 drv->if_removed = 1;
1093 } else {
1094 wpa_printf(MSG_DEBUG, "RTM_DELLINK: Interface '%s' removed",
1095 ifname);
1096 }
1097
1098 os_memset(&event, 0, sizeof(event));
1099 os_strlcpy(event.interface_status.ifname, ifname,
1100 sizeof(event.interface_status.ifname));
1101 event.interface_status.ievent = EVENT_INTERFACE_REMOVED;
1102 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event);
1103 }
1104
1105
1106 static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv,
1107 u8 *buf, size_t len)
1108 {
1109 int attrlen, rta_len;
1110 struct rtattr *attr;
1111
1112 attrlen = len;
1113 attr = (struct rtattr *) buf;
1114
1115 rta_len = RTA_ALIGN(sizeof(struct rtattr));
1116 while (RTA_OK(attr, attrlen)) {
1117 if (attr->rta_type == IFLA_IFNAME) {
1118 if (os_strcmp(((char *) attr) + rta_len,
1119 drv->first_bss->ifname) == 0)
1120 return 1;
1121 else
1122 break;
1123 }
1124 attr = RTA_NEXT(attr, attrlen);
1125 }
1126
1127 return 0;
1128 }
1129
1130
1131 static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv,
1132 int ifindex, u8 *buf, size_t len)
1133 {
1134 if (drv->ifindex == ifindex)
1135 return 1;
1136
1137 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) {
1138 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed "
1139 "interface");
1140 wpa_driver_nl80211_finish_drv_init(drv, NULL, 0);
1141 return 1;
1142 }
1143
1144 return 0;
1145 }
1146
1147
1148 static struct wpa_driver_nl80211_data *
1149 nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len)
1150 {
1151 struct wpa_driver_nl80211_data *drv;
1152 dl_list_for_each(drv, &global->interfaces,
1153 struct wpa_driver_nl80211_data, list) {
1154 if (wpa_driver_nl80211_own_ifindex(drv, idx, buf, len) ||
1155 have_ifidx(drv, idx))
1156 return drv;
1157 }
1158 return NULL;
1159 }
1160
1161
1162 static void wpa_driver_nl80211_event_rtm_newlink(void *ctx,
1163 struct ifinfomsg *ifi,
1164 u8 *buf, size_t len)
1165 {
1166 struct nl80211_global *global = ctx;
1167 struct wpa_driver_nl80211_data *drv;
1168 int attrlen;
1169 struct rtattr *attr;
1170 u32 brid = 0;
1171 char namebuf[IFNAMSIZ];
1172 char ifname[IFNAMSIZ + 1];
1173 char extra[100], *pos, *end;
1174
1175 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len);
1176 if (!drv) {
1177 wpa_printf(MSG_DEBUG, "nl80211: Ignore RTM_NEWLINK event for foreign ifindex %d",
1178 ifi->ifi_index);
1179 return;
1180 }
1181
1182 extra[0] = '\0';
1183 pos = extra;
1184 end = pos + sizeof(extra);
1185 ifname[0] = '\0';
1186
1187 attrlen = len;
1188 attr = (struct rtattr *) buf;
1189 while (RTA_OK(attr, attrlen)) {
1190 switch (attr->rta_type) {
1191 case IFLA_IFNAME:
1192 if (RTA_PAYLOAD(attr) >= IFNAMSIZ)
1193 break;
1194 os_memcpy(ifname, RTA_DATA(attr), RTA_PAYLOAD(attr));
1195 ifname[RTA_PAYLOAD(attr)] = '\0';
1196 break;
1197 case IFLA_MASTER:
1198 brid = nla_get_u32((struct nlattr *) attr);
1199 pos += os_snprintf(pos, end - pos, " master=%u", brid);
1200 break;
1201 case IFLA_WIRELESS:
1202 pos += os_snprintf(pos, end - pos, " wext");
1203 break;
1204 case IFLA_OPERSTATE:
1205 pos += os_snprintf(pos, end - pos, " operstate=%u",
1206 nla_get_u32((struct nlattr *) attr));
1207 break;
1208 case IFLA_LINKMODE:
1209 pos += os_snprintf(pos, end - pos, " linkmode=%u",
1210 nla_get_u32((struct nlattr *) attr));
1211 break;
1212 }
1213 attr = RTA_NEXT(attr, attrlen);
1214 }
1215 extra[sizeof(extra) - 1] = '\0';
1216
1217 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: ifi_index=%d ifname=%s%s ifi_flags=0x%x (%s%s%s%s)",
1218 ifi->ifi_index, ifname, extra, ifi->ifi_flags,
1219 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "",
1220 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "",
1221 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "",
1222 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : "");
1223
1224 if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) {
1225 if (if_indextoname(ifi->ifi_index, namebuf) &&
1226 linux_iface_up(drv->global->ioctl_sock,
1227 drv->first_bss->ifname) > 0) {
1228 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down "
1229 "event since interface %s is up", namebuf);
1230 return;
1231 }
1232 wpa_printf(MSG_DEBUG, "nl80211: Interface down");
1233 if (drv->ignore_if_down_event) {
1234 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down "
1235 "event generated by mode change");
1236 drv->ignore_if_down_event = 0;
1237 } else {
1238 drv->if_disabled = 1;
1239 wpa_supplicant_event(drv->ctx,
1240 EVENT_INTERFACE_DISABLED, NULL);
1241 }
1242 }
1243
1244 if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) {
1245 if (if_indextoname(ifi->ifi_index, namebuf) &&
1246 linux_iface_up(drv->global->ioctl_sock,
1247 drv->first_bss->ifname) == 0) {
1248 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
1249 "event since interface %s is down",
1250 namebuf);
1251 } else if (if_nametoindex(drv->first_bss->ifname) == 0) {
1252 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
1253 "event since interface %s does not exist",
1254 drv->first_bss->ifname);
1255 } else if (drv->if_removed) {
1256 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
1257 "event since interface %s is marked "
1258 "removed", drv->first_bss->ifname);
1259 } else {
1260 wpa_printf(MSG_DEBUG, "nl80211: Interface up");
1261 drv->if_disabled = 0;
1262 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED,
1263 NULL);
1264 }
1265 }
1266
1267 /*
1268 * Some drivers send the association event before the operup event--in
1269 * this case, lifting operstate in wpa_driver_nl80211_set_operstate()
1270 * fails. This will hit us when wpa_supplicant does not need to do
1271 * IEEE 802.1X authentication
1272 */
1273 if (drv->operstate == 1 &&
1274 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP &&
1275 !(ifi->ifi_flags & IFF_RUNNING)) {
1276 wpa_printf(MSG_DEBUG, "nl80211: Set IF_OPER_UP again based on ifi_flags and expected operstate");
1277 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex,
1278 -1, IF_OPER_UP);
1279 }
1280
1281 if (ifname[0])
1282 wpa_driver_nl80211_event_newlink(drv, ifname);
1283
1284 if (ifi->ifi_family == AF_BRIDGE && brid) {
1285 /* device has been added to bridge */
1286 if_indextoname(brid, namebuf);
1287 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s",
1288 brid, namebuf);
1289 add_ifidx(drv, brid);
1290 }
1291 }
1292
1293
1294 static void wpa_driver_nl80211_event_rtm_dellink(void *ctx,
1295 struct ifinfomsg *ifi,
1296 u8 *buf, size_t len)
1297 {
1298 struct nl80211_global *global = ctx;
1299 struct wpa_driver_nl80211_data *drv;
1300 int attrlen;
1301 struct rtattr *attr;
1302 u32 brid = 0;
1303 char ifname[IFNAMSIZ + 1];
1304
1305 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len);
1306 if (!drv) {
1307 wpa_printf(MSG_DEBUG, "nl80211: Ignore RTM_DELLINK event for foreign ifindex %d",
1308 ifi->ifi_index);
1309 return;
1310 }
1311
1312 ifname[0] = '\0';
1313
1314 attrlen = len;
1315 attr = (struct rtattr *) buf;
1316 while (RTA_OK(attr, attrlen)) {
1317 switch (attr->rta_type) {
1318 case IFLA_IFNAME:
1319 if (RTA_PAYLOAD(attr) >= IFNAMSIZ)
1320 break;
1321 os_memcpy(ifname, RTA_DATA(attr), RTA_PAYLOAD(attr));
1322 ifname[RTA_PAYLOAD(attr)] = '\0';
1323 break;
1324 case IFLA_MASTER:
1325 brid = nla_get_u32((struct nlattr *) attr);
1326 break;
1327 }
1328 attr = RTA_NEXT(attr, attrlen);
1329 }
1330
1331 if (ifname[0])
1332 wpa_driver_nl80211_event_dellink(drv, ifname);
1333
1334 if (ifi->ifi_family == AF_BRIDGE && brid) {
1335 /* device has been removed from bridge */
1336 char namebuf[IFNAMSIZ];
1337 if_indextoname(brid, namebuf);
1338 wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge "
1339 "%s", brid, namebuf);
1340 del_ifidx(drv, brid);
1341 }
1342 }
1343
1344
1345 static void mlme_event_auth(struct wpa_driver_nl80211_data *drv,
1346 const u8 *frame, size_t len)
1347 {
1348 const struct ieee80211_mgmt *mgmt;
1349 union wpa_event_data event;
1350
1351 wpa_printf(MSG_DEBUG, "nl80211: Authenticate event");
1352 mgmt = (const struct ieee80211_mgmt *) frame;
1353 if (len < 24 + sizeof(mgmt->u.auth)) {
1354 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
1355 "frame");
1356 return;
1357 }
1358
1359 os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN);
1360 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN);
1361 os_memset(&event, 0, sizeof(event));
1362 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN);
1363 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg);
1364 event.auth.auth_transaction =
1365 le_to_host16(mgmt->u.auth.auth_transaction);
1366 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code);
1367 if (len > 24 + sizeof(mgmt->u.auth)) {
1368 event.auth.ies = mgmt->u.auth.variable;
1369 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth);
1370 }
1371
1372 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event);
1373 }
1374
1375
1376 static unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv)
1377 {
1378 struct nl_msg *msg;
1379 int ret;
1380 struct nl80211_bss_info_arg arg;
1381
1382 os_memset(&arg, 0, sizeof(arg));
1383 msg = nlmsg_alloc();
1384 if (!msg)
1385 goto nla_put_failure;
1386
1387 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
1388 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1389
1390 arg.drv = drv;
1391 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
1392 msg = NULL;
1393 if (ret == 0) {
1394 wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the "
1395 "associated BSS from scan results: %u MHz",
1396 arg.assoc_freq);
1397 if (arg.assoc_freq)
1398 drv->assoc_freq = arg.assoc_freq;
1399 return drv->assoc_freq;
1400 }
1401 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
1402 "(%s)", ret, strerror(-ret));
1403 nla_put_failure:
1404 nlmsg_free(msg);
1405 return drv->assoc_freq;
1406 }
1407
1408
1409 static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv,
1410 const u8 *frame, size_t len)
1411 {
1412 const struct ieee80211_mgmt *mgmt;
1413 union wpa_event_data event;
1414 u16 status;
1415
1416 wpa_printf(MSG_DEBUG, "nl80211: Associate event");
1417 mgmt = (const struct ieee80211_mgmt *) frame;
1418 if (len < 24 + sizeof(mgmt->u.assoc_resp)) {
1419 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
1420 "frame");
1421 return;
1422 }
1423
1424 status = le_to_host16(mgmt->u.assoc_resp.status_code);
1425 if (status != WLAN_STATUS_SUCCESS) {
1426 os_memset(&event, 0, sizeof(event));
1427 event.assoc_reject.bssid = mgmt->bssid;
1428 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
1429 event.assoc_reject.resp_ies =
1430 (u8 *) mgmt->u.assoc_resp.variable;
1431 event.assoc_reject.resp_ies_len =
1432 len - 24 - sizeof(mgmt->u.assoc_resp);
1433 }
1434 event.assoc_reject.status_code = status;
1435
1436 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
1437 return;
1438 }
1439
1440 drv->associated = 1;
1441 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN);
1442 os_memcpy(drv->prev_bssid, mgmt->sa, ETH_ALEN);
1443
1444 os_memset(&event, 0, sizeof(event));
1445 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
1446 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable;
1447 event.assoc_info.resp_ies_len =
1448 len - 24 - sizeof(mgmt->u.assoc_resp);
1449 }
1450
1451 event.assoc_info.freq = drv->assoc_freq;
1452
1453 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
1454 }
1455
1456
1457 static void mlme_event_connect(struct wpa_driver_nl80211_data *drv,
1458 enum nl80211_commands cmd, struct nlattr *status,
1459 struct nlattr *addr, struct nlattr *req_ie,
1460 struct nlattr *resp_ie)
1461 {
1462 union wpa_event_data event;
1463
1464 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
1465 /*
1466 * Avoid reporting two association events that would confuse
1467 * the core code.
1468 */
1469 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) "
1470 "when using userspace SME", cmd);
1471 return;
1472 }
1473
1474 if (cmd == NL80211_CMD_CONNECT)
1475 wpa_printf(MSG_DEBUG, "nl80211: Connect event");
1476 else if (cmd == NL80211_CMD_ROAM)
1477 wpa_printf(MSG_DEBUG, "nl80211: Roam event");
1478
1479 os_memset(&event, 0, sizeof(event));
1480 if (cmd == NL80211_CMD_CONNECT &&
1481 nla_get_u16(status) != WLAN_STATUS_SUCCESS) {
1482 if (addr)
1483 event.assoc_reject.bssid = nla_data(addr);
1484 if (resp_ie) {
1485 event.assoc_reject.resp_ies = nla_data(resp_ie);
1486 event.assoc_reject.resp_ies_len = nla_len(resp_ie);
1487 }
1488 event.assoc_reject.status_code = nla_get_u16(status);
1489 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
1490 return;
1491 }
1492
1493 drv->associated = 1;
1494 if (addr) {
1495 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN);
1496 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN);
1497 }
1498
1499 if (req_ie) {
1500 event.assoc_info.req_ies = nla_data(req_ie);
1501 event.assoc_info.req_ies_len = nla_len(req_ie);
1502 }
1503 if (resp_ie) {
1504 event.assoc_info.resp_ies = nla_data(resp_ie);
1505 event.assoc_info.resp_ies_len = nla_len(resp_ie);
1506 }
1507
1508 event.assoc_info.freq = nl80211_get_assoc_freq(drv);
1509
1510 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
1511 }
1512
1513
1514 static void mlme_event_disconnect(struct wpa_driver_nl80211_data *drv,
1515 struct nlattr *reason, struct nlattr *addr,
1516 struct nlattr *by_ap)
1517 {
1518 union wpa_event_data data;
1519 unsigned int locally_generated = by_ap == NULL;
1520
1521 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
1522 /*
1523 * Avoid reporting two disassociation events that could
1524 * confuse the core code.
1525 */
1526 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect "
1527 "event when using userspace SME");
1528 return;
1529 }
1530
1531 if (drv->ignore_next_local_disconnect) {
1532 drv->ignore_next_local_disconnect = 0;
1533 if (locally_generated) {
1534 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect "
1535 "event triggered during reassociation");
1536 return;
1537 }
1538 wpa_printf(MSG_WARNING, "nl80211: Was expecting local "
1539 "disconnect but got another disconnect "
1540 "event first");
1541 }
1542
1543 wpa_printf(MSG_DEBUG, "nl80211: Disconnect event");
1544 nl80211_mark_disconnected(drv);
1545 os_memset(&data, 0, sizeof(data));
1546 if (reason)
1547 data.deauth_info.reason_code = nla_get_u16(reason);
1548 data.deauth_info.locally_generated = by_ap == NULL;
1549 wpa_supplicant_event(drv->ctx, EVENT_DEAUTH, &data);
1550 }
1551
1552
1553 static void mlme_event_ch_switch(struct wpa_driver_nl80211_data *drv,
1554 struct nlattr *ifindex, struct nlattr *freq,
1555 struct nlattr *type, struct nlattr *bw,
1556 struct nlattr *cf1, struct nlattr *cf2)
1557 {
1558 struct i802_bss *bss;
1559 union wpa_event_data data;
1560 int ht_enabled = 1;
1561 int chan_offset = 0;
1562 int ifidx;
1563
1564 wpa_printf(MSG_DEBUG, "nl80211: Channel switch event");
1565
1566 if (!freq)
1567 return;
1568
1569 ifidx = nla_get_u32(ifindex);
1570 for (bss = drv->first_bss; bss; bss = bss->next)
1571 if (bss->ifindex == ifidx)
1572 break;
1573
1574 if (bss == NULL) {
1575 wpa_printf(MSG_WARNING, "nl80211: Unknown ifindex (%d) for channel switch, ignoring",
1576 ifidx);
1577 return;
1578 }
1579
1580 if (type) {
1581 switch (nla_get_u32(type)) {
1582 case NL80211_CHAN_NO_HT:
1583 ht_enabled = 0;
1584 break;
1585 case NL80211_CHAN_HT20:
1586 break;
1587 case NL80211_CHAN_HT40PLUS:
1588 chan_offset = 1;
1589 break;
1590 case NL80211_CHAN_HT40MINUS:
1591 chan_offset = -1;
1592 break;
1593 }
1594 }
1595
1596 os_memset(&data, 0, sizeof(data));
1597 data.ch_switch.freq = nla_get_u32(freq);
1598 data.ch_switch.ht_enabled = ht_enabled;
1599 data.ch_switch.ch_offset = chan_offset;
1600 if (bw)
1601 data.ch_switch.ch_width = convert2width(nla_get_u32(bw));
1602 if (cf1)
1603 data.ch_switch.cf1 = nla_get_u32(cf1);
1604 if (cf2)
1605 data.ch_switch.cf2 = nla_get_u32(cf2);
1606
1607 bss->freq = data.ch_switch.freq;
1608
1609 wpa_supplicant_event(drv->ctx, EVENT_CH_SWITCH, &data);
1610 }
1611
1612
1613 static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv,
1614 enum nl80211_commands cmd, struct nlattr *addr)
1615 {
1616 union wpa_event_data event;
1617 enum wpa_event_type ev;
1618
1619 if (nla_len(addr) != ETH_ALEN)
1620 return;
1621
1622 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR,
1623 cmd, MAC2STR((u8 *) nla_data(addr)));
1624
1625 if (cmd == NL80211_CMD_AUTHENTICATE)
1626 ev = EVENT_AUTH_TIMED_OUT;
1627 else if (cmd == NL80211_CMD_ASSOCIATE)
1628 ev = EVENT_ASSOC_TIMED_OUT;
1629 else
1630 return;
1631
1632 os_memset(&event, 0, sizeof(event));
1633 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN);
1634 wpa_supplicant_event(drv->ctx, ev, &event);
1635 }
1636
1637
1638 static void mlme_event_mgmt(struct wpa_driver_nl80211_data *drv,
1639 struct nlattr *freq, struct nlattr *sig,
1640 const u8 *frame, size_t len)
1641 {
1642 const struct ieee80211_mgmt *mgmt;
1643 union wpa_event_data event;
1644 u16 fc, stype;
1645 int ssi_signal = 0;
1646 int rx_freq = 0;
1647
1648 wpa_printf(MSG_MSGDUMP, "nl80211: Frame event");
1649 mgmt = (const struct ieee80211_mgmt *) frame;
1650 if (len < 24) {
1651 wpa_printf(MSG_DEBUG, "nl80211: Too short management frame");
1652 return;
1653 }
1654
1655 fc = le_to_host16(mgmt->frame_control);
1656 stype = WLAN_FC_GET_STYPE(fc);
1657
1658 if (sig)
1659 ssi_signal = (s32) nla_get_u32(sig);
1660
1661 os_memset(&event, 0, sizeof(event));
1662 if (freq) {
1663 event.rx_mgmt.freq = nla_get_u32(freq);
1664 rx_freq = drv->last_mgmt_freq = event.rx_mgmt.freq;
1665 }
1666 wpa_printf(MSG_DEBUG,
1667 "nl80211: RX frame freq=%d ssi_signal=%d stype=%u len=%u",
1668 rx_freq, ssi_signal, stype, (unsigned int) len);
1669 event.rx_mgmt.frame = frame;
1670 event.rx_mgmt.frame_len = len;
1671 event.rx_mgmt.ssi_signal = ssi_signal;
1672 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
1673 }
1674
1675
1676 static void mlme_event_mgmt_tx_status(struct wpa_driver_nl80211_data *drv,
1677 struct nlattr *cookie, const u8 *frame,
1678 size_t len, struct nlattr *ack)
1679 {
1680 union wpa_event_data event;
1681 const struct ieee80211_hdr *hdr;
1682 u16 fc;
1683
1684 wpa_printf(MSG_DEBUG, "nl80211: Frame TX status event");
1685 if (!is_ap_interface(drv->nlmode)) {
1686 u64 cookie_val;
1687
1688 if (!cookie)
1689 return;
1690
1691 cookie_val = nla_get_u64(cookie);
1692 wpa_printf(MSG_DEBUG, "nl80211: Action TX status:"
1693 " cookie=0%llx%s (ack=%d)",
1694 (long long unsigned int) cookie_val,
1695 cookie_val == drv->send_action_cookie ?
1696 " (match)" : " (unknown)", ack != NULL);
1697 if (cookie_val != drv->send_action_cookie)
1698 return;
1699 }
1700
1701 hdr = (const struct ieee80211_hdr *) frame;
1702 fc = le_to_host16(hdr->frame_control);
1703
1704 os_memset(&event, 0, sizeof(event));
1705 event.tx_status.type = WLAN_FC_GET_TYPE(fc);
1706 event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
1707 event.tx_status.dst = hdr->addr1;
1708 event.tx_status.data = frame;
1709 event.tx_status.data_len = len;
1710 event.tx_status.ack = ack != NULL;
1711 wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event);
1712 }
1713
1714
1715 static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv,
1716 enum wpa_event_type type,
1717 const u8 *frame, size_t len)
1718 {
1719 const struct ieee80211_mgmt *mgmt;
1720 union wpa_event_data event;
1721 const u8 *bssid = NULL;
1722 u16 reason_code = 0;
1723
1724 if (type == EVENT_DEAUTH)
1725 wpa_printf(MSG_DEBUG, "nl80211: Deauthenticate event");
1726 else
1727 wpa_printf(MSG_DEBUG, "nl80211: Disassociate event");
1728
1729 mgmt = (const struct ieee80211_mgmt *) frame;
1730 if (len >= 24) {
1731 bssid = mgmt->bssid;
1732
1733 if ((drv->capa.flags & WPA_DRIVER_FLAGS_SME) &&
1734 !drv->associated &&
1735 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0 &&
1736 os_memcmp(bssid, drv->auth_attempt_bssid, ETH_ALEN) != 0 &&
1737 os_memcmp(bssid, drv->prev_bssid, ETH_ALEN) == 0) {
1738 /*
1739 * Avoid issues with some roaming cases where
1740 * disconnection event for the old AP may show up after
1741 * we have started connection with the new AP.
1742 */
1743 wpa_printf(MSG_DEBUG, "nl80211: Ignore deauth/disassoc event from old AP " MACSTR " when already authenticating with " MACSTR,
1744 MAC2STR(bssid),
1745 MAC2STR(drv->auth_attempt_bssid));
1746 return;
1747 }
1748
1749 if (drv->associated != 0 &&
1750 os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 &&
1751 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) {
1752 /*
1753 * We have presumably received this deauth as a
1754 * response to a clear_state_mismatch() outgoing
1755 * deauth. Don't let it take us offline!
1756 */
1757 wpa_printf(MSG_DEBUG, "nl80211: Deauth received "
1758 "from Unknown BSSID " MACSTR " -- ignoring",
1759 MAC2STR(bssid));
1760 return;
1761 }
1762 }
1763
1764 nl80211_mark_disconnected(drv);
1765 os_memset(&event, 0, sizeof(event));
1766
1767 /* Note: Same offset for Reason Code in both frame subtypes */
1768 if (len >= 24 + sizeof(mgmt->u.deauth))
1769 reason_code = le_to_host16(mgmt->u.deauth.reason_code);
1770
1771 if (type == EVENT_DISASSOC) {
1772 event.disassoc_info.locally_generated =
1773 !os_memcmp(mgmt->sa, drv->first_bss->addr, ETH_ALEN);
1774 event.disassoc_info.addr = bssid;
1775 event.disassoc_info.reason_code = reason_code;
1776 if (frame + len > mgmt->u.disassoc.variable) {
1777 event.disassoc_info.ie = mgmt->u.disassoc.variable;
1778 event.disassoc_info.ie_len = frame + len -
1779 mgmt->u.disassoc.variable;
1780 }
1781 } else {
1782 event.deauth_info.locally_generated =
1783 !os_memcmp(mgmt->sa, drv->first_bss->addr, ETH_ALEN);
1784 event.deauth_info.addr = bssid;
1785 event.deauth_info.reason_code = reason_code;
1786 if (frame + len > mgmt->u.deauth.variable) {
1787 event.deauth_info.ie = mgmt->u.deauth.variable;
1788 event.deauth_info.ie_len = frame + len -
1789 mgmt->u.deauth.variable;
1790 }
1791 }
1792
1793 wpa_supplicant_event(drv->ctx, type, &event);
1794 }
1795
1796
1797 static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv,
1798 enum wpa_event_type type,
1799 const u8 *frame, size_t len)
1800 {
1801 const struct ieee80211_mgmt *mgmt;
1802 union wpa_event_data event;
1803 u16 reason_code = 0;
1804
1805 if (type == EVENT_UNPROT_DEAUTH)
1806 wpa_printf(MSG_DEBUG, "nl80211: Unprot Deauthenticate event");
1807 else
1808 wpa_printf(MSG_DEBUG, "nl80211: Unprot Disassociate event");
1809
1810 if (len < 24)
1811 return;
1812
1813 mgmt = (const struct ieee80211_mgmt *) frame;
1814
1815 os_memset(&event, 0, sizeof(event));
1816 /* Note: Same offset for Reason Code in both frame subtypes */
1817 if (len >= 24 + sizeof(mgmt->u.deauth))
1818 reason_code = le_to_host16(mgmt->u.deauth.reason_code);
1819
1820 if (type == EVENT_UNPROT_DISASSOC) {
1821 event.unprot_disassoc.sa = mgmt->sa;
1822 event.unprot_disassoc.da = mgmt->da;
1823 event.unprot_disassoc.reason_code = reason_code;
1824 } else {
1825 event.unprot_deauth.sa = mgmt->sa;
1826 event.unprot_deauth.da = mgmt->da;
1827 event.unprot_deauth.reason_code = reason_code;
1828 }
1829
1830 wpa_supplicant_event(drv->ctx, type, &event);
1831 }
1832
1833
1834 static void mlme_event(struct i802_bss *bss,
1835 enum nl80211_commands cmd, struct nlattr *frame,
1836 struct nlattr *addr, struct nlattr *timed_out,
1837 struct nlattr *freq, struct nlattr *ack,
1838 struct nlattr *cookie, struct nlattr *sig)
1839 {
1840 struct wpa_driver_nl80211_data *drv = bss->drv;
1841 const u8 *data;
1842 size_t len;
1843
1844 if (timed_out && addr) {
1845 mlme_timeout_event(drv, cmd, addr);
1846 return;
1847 }
1848
1849 if (frame == NULL) {
1850 wpa_printf(MSG_DEBUG,
1851 "nl80211: MLME event %d (%s) without frame data",
1852 cmd, nl80211_command_to_string(cmd));
1853 return;
1854 }
1855
1856 data = nla_data(frame);
1857 len = nla_len(frame);
1858 if (len < 4 + 2 * ETH_ALEN) {
1859 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s("
1860 MACSTR ") - too short",
1861 cmd, nl80211_command_to_string(cmd), bss->ifname,
1862 MAC2STR(bss->addr));
1863 return;
1864 }
1865 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" MACSTR
1866 ") A1=" MACSTR " A2=" MACSTR, cmd,
1867 nl80211_command_to_string(cmd), bss->ifname,
1868 MAC2STR(bss->addr), MAC2STR(data + 4),
1869 MAC2STR(data + 4 + ETH_ALEN));
1870 if (cmd != NL80211_CMD_FRAME_TX_STATUS && !(data[4] & 0x01) &&
1871 os_memcmp(bss->addr, data + 4, ETH_ALEN) != 0 &&
1872 os_memcmp(bss->addr, data + 4 + ETH_ALEN, ETH_ALEN) != 0) {
1873 wpa_printf(MSG_MSGDUMP, "nl80211: %s: Ignore MLME frame event "
1874 "for foreign address", bss->ifname);
1875 return;
1876 }
1877 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame",
1878 nla_data(frame), nla_len(frame));
1879
1880 switch (cmd) {
1881 case NL80211_CMD_AUTHENTICATE:
1882 mlme_event_auth(drv, nla_data(frame), nla_len(frame));
1883 break;
1884 case NL80211_CMD_ASSOCIATE:
1885 mlme_event_assoc(drv, nla_data(frame), nla_len(frame));
1886 break;
1887 case NL80211_CMD_DEAUTHENTICATE:
1888 mlme_event_deauth_disassoc(drv, EVENT_DEAUTH,
1889 nla_data(frame), nla_len(frame));
1890 break;
1891 case NL80211_CMD_DISASSOCIATE:
1892 mlme_event_deauth_disassoc(drv, EVENT_DISASSOC,
1893 nla_data(frame), nla_len(frame));
1894 break;
1895 case NL80211_CMD_FRAME:
1896 mlme_event_mgmt(drv, freq, sig, nla_data(frame),
1897 nla_len(frame));
1898 break;
1899 case NL80211_CMD_FRAME_TX_STATUS:
1900 mlme_event_mgmt_tx_status(drv, cookie, nla_data(frame),
1901 nla_len(frame), ack);
1902 break;
1903 case NL80211_CMD_UNPROT_DEAUTHENTICATE:
1904 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH,
1905 nla_data(frame), nla_len(frame));
1906 break;
1907 case NL80211_CMD_UNPROT_DISASSOCIATE:
1908 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC,
1909 nla_data(frame), nla_len(frame));
1910 break;
1911 default:
1912 break;
1913 }
1914 }
1915
1916
1917 static void mlme_event_michael_mic_failure(struct i802_bss *bss,
1918 struct nlattr *tb[])
1919 {
1920 union wpa_event_data data;
1921
1922 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure");
1923 os_memset(&data, 0, sizeof(data));
1924 if (tb[NL80211_ATTR_MAC]) {
1925 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address",
1926 nla_data(tb[NL80211_ATTR_MAC]),
1927 nla_len(tb[NL80211_ATTR_MAC]));
1928 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]);
1929 }
1930 if (tb[NL80211_ATTR_KEY_SEQ]) {
1931 wpa_hexdump(MSG_DEBUG, "nl80211: TSC",
1932 nla_data(tb[NL80211_ATTR_KEY_SEQ]),
1933 nla_len(tb[NL80211_ATTR_KEY_SEQ]));
1934 }
1935 if (tb[NL80211_ATTR_KEY_TYPE]) {
1936 enum nl80211_key_type key_type =
1937 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]);
1938 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type);
1939 if (key_type == NL80211_KEYTYPE_PAIRWISE)
1940 data.michael_mic_failure.unicast = 1;
1941 } else
1942 data.michael_mic_failure.unicast = 1;
1943
1944 if (tb[NL80211_ATTR_KEY_IDX]) {
1945 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]);
1946 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id);
1947 }
1948
1949 wpa_supplicant_event(bss->ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
1950 }
1951
1952
1953 static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv,
1954 struct nlattr *tb[])
1955 {
1956 if (tb[NL80211_ATTR_MAC] == NULL) {
1957 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined "
1958 "event");
1959 return;
1960 }
1961 os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
1962
1963 drv->associated = 1;
1964 wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined",
1965 MAC2STR(drv->bssid));
1966
1967 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL);
1968 }
1969
1970
1971 static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv,
1972 int cancel_event, struct nlattr *tb[])
1973 {
1974 unsigned int freq, chan_type, duration;
1975 union wpa_event_data data;
1976 u64 cookie;
1977
1978 if (tb[NL80211_ATTR_WIPHY_FREQ])
1979 freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]);
1980 else
1981 freq = 0;
1982
1983 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
1984 chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1985 else
1986 chan_type = 0;
1987
1988 if (tb[NL80211_ATTR_DURATION])
1989 duration = nla_get_u32(tb[NL80211_ATTR_DURATION]);
1990 else
1991 duration = 0;
1992
1993 if (tb[NL80211_ATTR_COOKIE])
1994 cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
1995 else
1996 cookie = 0;
1997
1998 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d "
1999 "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))",
2000 cancel_event, freq, chan_type, duration,
2001 (long long unsigned int) cookie,
2002 cookie == drv->remain_on_chan_cookie ? "match" : "unknown");
2003
2004 if (cookie != drv->remain_on_chan_cookie)
2005 return; /* not for us */
2006
2007 if (cancel_event)
2008 drv->pending_remain_on_chan = 0;
2009
2010 os_memset(&data, 0, sizeof(data));
2011 data.remain_on_channel.freq = freq;
2012 data.remain_on_channel.duration = duration;
2013 wpa_supplicant_event(drv->ctx, cancel_event ?
2014 EVENT_CANCEL_REMAIN_ON_CHANNEL :
2015 EVENT_REMAIN_ON_CHANNEL, &data);
2016 }
2017
2018
2019 static void mlme_event_ft_event(struct wpa_driver_nl80211_data *drv,
2020 struct nlattr *tb[])
2021 {
2022 union wpa_event_data data;
2023
2024 os_memset(&data, 0, sizeof(data));
2025
2026 if (tb[NL80211_ATTR_IE]) {
2027 data.ft_ies.ies = nla_data(tb[NL80211_ATTR_IE]);
2028 data.ft_ies.ies_len = nla_len(tb[NL80211_ATTR_IE]);
2029 }
2030
2031 if (tb[NL80211_ATTR_IE_RIC]) {
2032 data.ft_ies.ric_ies = nla_data(tb[NL80211_ATTR_IE_RIC]);
2033 data.ft_ies.ric_ies_len = nla_len(tb[NL80211_ATTR_IE_RIC]);
2034 }
2035
2036 if (tb[NL80211_ATTR_MAC])
2037 os_memcpy(data.ft_ies.target_ap,
2038 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
2039
2040 wpa_printf(MSG_DEBUG, "nl80211: FT event target_ap " MACSTR,
2041 MAC2STR(data.ft_ies.target_ap));
2042
2043 wpa_supplicant_event(drv->ctx, EVENT_FT_RESPONSE, &data);
2044 }
2045
2046
2047 static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted,
2048 struct nlattr *tb[])
2049 {
2050 union wpa_event_data event;
2051 struct nlattr *nl;
2052 int rem;
2053 struct scan_info *info;
2054 #define MAX_REPORT_FREQS 50
2055 int freqs[MAX_REPORT_FREQS];
2056 int num_freqs = 0;
2057
2058 if (drv->scan_for_auth) {
2059 drv->scan_for_auth = 0;
2060 wpa_printf(MSG_DEBUG, "nl80211: Scan results for missing "
2061 "cfg80211 BSS entry");
2062 wpa_driver_nl80211_authenticate_retry(drv);
2063 return;
2064 }
2065
2066 os_memset(&event, 0, sizeof(event));
2067 info = &event.scan_info;
2068 info->aborted = aborted;
2069
2070 if (tb[NL80211_ATTR_SCAN_SSIDS]) {
2071 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) {
2072 struct wpa_driver_scan_ssid *s =
2073 &info->ssids[info->num_ssids];
2074 s->ssid = nla_data(nl);
2075 s->ssid_len = nla_len(nl);
2076 wpa_printf(MSG_DEBUG, "nl80211: Scan probed for SSID '%s'",
2077 wpa_ssid_txt(s->ssid, s->ssid_len));
2078 info->num_ssids++;
2079 if (info->num_ssids == WPAS_MAX_SCAN_SSIDS)
2080 break;
2081 }
2082 }
2083 if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) {
2084 char msg[200], *pos, *end;
2085 int res;
2086
2087 pos = msg;
2088 end = pos + sizeof(msg);
2089 *pos = '\0';
2090
2091 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem)
2092 {
2093 freqs[num_freqs] = nla_get_u32(nl);
2094 res = os_snprintf(pos, end - pos, " %d",
2095 freqs[num_freqs]);
2096 if (res > 0 && end - pos > res)
2097 pos += res;
2098 num_freqs++;
2099 if (num_freqs == MAX_REPORT_FREQS - 1)
2100 break;
2101 }
2102 info->freqs = freqs;
2103 info->num_freqs = num_freqs;
2104 wpa_printf(MSG_DEBUG, "nl80211: Scan included frequencies:%s",
2105 msg);
2106 }
2107 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event);
2108 }
2109
2110
2111 static int get_link_signal(struct nl_msg *msg, void *arg)
2112 {
2113 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2114 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2115 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1];
2116 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = {
2117 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 },
2118 [NL80211_STA_INFO_SIGNAL_AVG] = { .type = NLA_U8 },
2119 };
2120 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1];
2121 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = {
2122 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 },
2123 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 },
2124 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG },
2125 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG },
2126 };
2127 struct wpa_signal_info *sig_change = arg;
2128
2129 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2130 genlmsg_attrlen(gnlh, 0), NULL);
2131 if (!tb[NL80211_ATTR_STA_INFO] ||
2132 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX,
2133 tb[NL80211_ATTR_STA_INFO], policy))
2134 return NL_SKIP;
2135 if (!sinfo[NL80211_STA_INFO_SIGNAL])
2136 return NL_SKIP;
2137
2138 sig_change->current_signal =
2139 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]);
2140
2141 if (sinfo[NL80211_STA_INFO_SIGNAL_AVG])
2142 sig_change->avg_signal =
2143 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL_AVG]);
2144 else
2145 sig_change->avg_signal = 0;
2146
2147 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) {
2148 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX,
2149 sinfo[NL80211_STA_INFO_TX_BITRATE],
2150 rate_policy)) {
2151 sig_change->current_txrate = 0;
2152 } else {
2153 if (rinfo[NL80211_RATE_INFO_BITRATE]) {
2154 sig_change->current_txrate =
2155 nla_get_u16(rinfo[
2156 NL80211_RATE_INFO_BITRATE]) * 100;
2157 }
2158 }
2159 }
2160
2161 return NL_SKIP;
2162 }
2163
2164
2165 static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv,
2166 struct wpa_signal_info *sig)
2167 {
2168 struct nl_msg *msg;
2169
2170 sig->current_signal = -9999;
2171 sig->current_txrate = 0;
2172
2173 msg = nlmsg_alloc();
2174 if (!msg)
2175 return -ENOMEM;
2176
2177 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION);
2178
2179 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2180 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
2181
2182 return send_and_recv_msgs(drv, msg, get_link_signal, sig);
2183 nla_put_failure:
2184 nlmsg_free(msg);
2185 return -ENOBUFS;
2186 }
2187
2188
2189 static int get_link_noise(struct nl_msg *msg, void *arg)
2190 {
2191 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2192 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2193 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
2194 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
2195 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
2196 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
2197 };
2198 struct wpa_signal_info *sig_change = arg;
2199
2200 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2201 genlmsg_attrlen(gnlh, 0), NULL);
2202
2203 if (!tb[NL80211_ATTR_SURVEY_INFO]) {
2204 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!");
2205 return NL_SKIP;
2206 }
2207
2208 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
2209 tb[NL80211_ATTR_SURVEY_INFO],
2210 survey_policy)) {
2211 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested "
2212 "attributes!");
2213 return NL_SKIP;
2214 }
2215
2216 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY])
2217 return NL_SKIP;
2218
2219 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) !=
2220 sig_change->frequency)
2221 return NL_SKIP;
2222
2223 if (!sinfo[NL80211_SURVEY_INFO_NOISE])
2224 return NL_SKIP;
2225
2226 sig_change->current_noise =
2227 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
2228
2229 return NL_SKIP;
2230 }
2231
2232
2233 static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv,
2234 struct wpa_signal_info *sig_change)
2235 {
2236 struct nl_msg *msg;
2237
2238 sig_change->current_noise = 9999;
2239 sig_change->frequency = drv->assoc_freq;
2240
2241 msg = nlmsg_alloc();
2242 if (!msg)
2243 return -ENOMEM;
2244
2245 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
2246
2247 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2248
2249 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change);
2250 nla_put_failure:
2251 nlmsg_free(msg);
2252 return -ENOBUFS;
2253 }
2254
2255
2256 static int get_noise_for_scan_results(struct nl_msg *msg, void *arg)
2257 {
2258 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2259 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2260 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
2261 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
2262 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
2263 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
2264 };
2265 struct wpa_scan_results *scan_results = arg;
2266 struct wpa_scan_res *scan_res;
2267 size_t i;
2268
2269 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2270 genlmsg_attrlen(gnlh, 0), NULL);
2271
2272 if (!tb[NL80211_ATTR_SURVEY_INFO]) {
2273 wpa_printf(MSG_DEBUG, "nl80211: Survey data missing");
2274 return NL_SKIP;
2275 }
2276
2277 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
2278 tb[NL80211_ATTR_SURVEY_INFO],
2279 survey_policy)) {
2280 wpa_printf(MSG_DEBUG, "nl80211: Failed to parse nested "
2281 "attributes");
2282 return NL_SKIP;
2283 }
2284
2285 if (!sinfo[NL80211_SURVEY_INFO_NOISE])
2286 return NL_SKIP;
2287
2288 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY])
2289 return NL_SKIP;
2290
2291 for (i = 0; i < scan_results->num; ++i) {
2292 scan_res = scan_results->res[i];
2293 if (!scan_res)
2294 continue;
2295 if ((int) nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) !=
2296 scan_res->freq)
2297 continue;
2298 if (!(scan_res->flags & WPA_SCAN_NOISE_INVALID))
2299 continue;
2300 scan_res->noise = (s8)
2301 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
2302 scan_res->flags &= ~WPA_SCAN_NOISE_INVALID;
2303 }
2304
2305 return NL_SKIP;
2306 }
2307
2308
2309 static int nl80211_get_noise_for_scan_results(
2310 struct wpa_driver_nl80211_data *drv,
2311 struct wpa_scan_results *scan_res)
2312 {
2313 struct nl_msg *msg;
2314
2315 msg = nlmsg_alloc();
2316 if (!msg)
2317 return -ENOMEM;
2318
2319 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
2320
2321 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2322
2323 return send_and_recv_msgs(drv, msg, get_noise_for_scan_results,
2324 scan_res);
2325 nla_put_failure:
2326 nlmsg_free(msg);
2327 return -ENOBUFS;
2328 }
2329
2330
2331 static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv,
2332 struct nlattr *tb[])
2333 {
2334 static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
2335 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
2336 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 },
2337 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
2338 [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 },
2339 };
2340 struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1];
2341 enum nl80211_cqm_rssi_threshold_event event;
2342 union wpa_event_data ed;
2343 struct wpa_signal_info sig;
2344 int res;
2345
2346 if (tb[NL80211_ATTR_CQM] == NULL ||
2347 nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM],
2348 cqm_policy)) {
2349 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event");
2350 return;
2351 }
2352
2353 os_memset(&ed, 0, sizeof(ed));
2354
2355 if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) {
2356 if (!tb[NL80211_ATTR_MAC])
2357 return;
2358 os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]),
2359 ETH_ALEN);
2360 wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed);
2361 return;
2362 }
2363
2364 if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL)
2365 return;
2366 event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]);
2367
2368 if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) {
2369 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
2370 "event: RSSI high");
2371 ed.signal_change.above_threshold = 1;
2372 } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) {
2373 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
2374 "event: RSSI low");
2375 ed.signal_change.above_threshold = 0;
2376 } else
2377 return;
2378
2379 res = nl80211_get_link_signal(drv, &sig);
2380 if (res == 0) {
2381 ed.signal_change.current_signal = sig.current_signal;
2382 ed.signal_change.current_txrate = sig.current_txrate;
2383 wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d",
2384 sig.current_signal, sig.current_txrate);
2385 }
2386
2387 res = nl80211_get_link_noise(drv, &sig);
2388 if (res == 0) {
2389 ed.signal_change.current_noise = sig.current_noise;
2390 wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm",
2391 sig.current_noise);
2392 }
2393
2394 wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed);
2395 }
2396
2397
2398 static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv,
2399 struct nlattr **tb)
2400 {
2401 u8 *addr;
2402 union wpa_event_data data;
2403
2404 if (tb[NL80211_ATTR_MAC] == NULL)
2405 return;
2406 addr = nla_data(tb[NL80211_ATTR_MAC]);
2407 wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr));
2408
2409 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) {
2410 u8 *ies = NULL;
2411 size_t ies_len = 0;
2412 if (tb[NL80211_ATTR_IE]) {
2413 ies = nla_data(tb[NL80211_ATTR_IE]);
2414 ies_len = nla_len(tb[NL80211_ATTR_IE]);
2415 }
2416 wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len);
2417 drv_event_assoc(drv->ctx, addr, ies, ies_len, 0);
2418 return;
2419 }
2420
2421 if (drv->nlmode != NL80211_IFTYPE_ADHOC)
2422 return;
2423
2424 os_memset(&data, 0, sizeof(data));
2425 os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN);
2426 wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data);
2427 }
2428
2429
2430 static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv,
2431 struct nlattr **tb)
2432 {
2433 u8 *addr;
2434 union wpa_event_data data;
2435
2436 if (tb[NL80211_ATTR_MAC] == NULL)
2437 return;
2438 addr = nla_data(tb[NL80211_ATTR_MAC]);
2439 wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR,
2440 MAC2STR(addr));
2441
2442 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) {
2443 drv_event_disassoc(drv->ctx, addr);
2444 return;
2445 }
2446
2447 if (drv->nlmode != NL80211_IFTYPE_ADHOC)
2448 return;
2449
2450 os_memset(&data, 0, sizeof(data));
2451 os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN);
2452 wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data);
2453 }
2454
2455
2456 static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv,
2457 struct nlattr **tb)
2458 {
2459 struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA];
2460 static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = {
2461 [NL80211_REKEY_DATA_KEK] = {
2462 .minlen = NL80211_KEK_LEN,
2463 .maxlen = NL80211_KEK_LEN,
2464 },
2465 [NL80211_REKEY_DATA_KCK] = {
2466 .minlen = NL80211_KCK_LEN,
2467 .maxlen = NL80211_KCK_LEN,
2468 },
2469 [NL80211_REKEY_DATA_REPLAY_CTR] = {
2470 .minlen = NL80211_REPLAY_CTR_LEN,
2471 .maxlen = NL80211_REPLAY_CTR_LEN,
2472 },
2473 };
2474 union wpa_event_data data;
2475
2476 if (!tb[NL80211_ATTR_MAC])
2477 return;
2478 if (!tb[NL80211_ATTR_REKEY_DATA])
2479 return;
2480 if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA,
2481 tb[NL80211_ATTR_REKEY_DATA], rekey_policy))
2482 return;
2483 if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR])
2484 return;
2485
2486 os_memset(&data, 0, sizeof(data));
2487 data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]);
2488 wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR,
2489 MAC2STR(data.driver_gtk_rekey.bssid));
2490 data.driver_gtk_rekey.replay_ctr =
2491 nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]);
2492 wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter",
2493 data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN);
2494 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data);
2495 }
2496
2497
2498 static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv,
2499 struct nlattr **tb)
2500 {
2501 struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE];
2502 static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = {
2503 [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 },
2504 [NL80211_PMKSA_CANDIDATE_BSSID] = {
2505 .minlen = ETH_ALEN,
2506 .maxlen = ETH_ALEN,
2507 },
2508 [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG },
2509 };
2510 union wpa_event_data data;
2511
2512 wpa_printf(MSG_DEBUG, "nl80211: PMKSA candidate event");
2513
2514 if (!tb[NL80211_ATTR_PMKSA_CANDIDATE])
2515 return;
2516 if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE,
2517 tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy))
2518 return;
2519 if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] ||
2520 !cand[NL80211_PMKSA_CANDIDATE_BSSID])
2521 return;
2522
2523 os_memset(&data, 0, sizeof(data));
2524 os_memcpy(data.pmkid_candidate.bssid,
2525 nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN);
2526 data.pmkid_candidate.index =
2527 nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]);
2528 data.pmkid_candidate.preauth =
2529 cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL;
2530 wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data);
2531 }
2532
2533
2534 static void nl80211_client_probe_event(struct wpa_driver_nl80211_data *drv,
2535 struct nlattr **tb)
2536 {
2537 union wpa_event_data data;
2538
2539 wpa_printf(MSG_DEBUG, "nl80211: Probe client event");
2540
2541 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_ACK])
2542 return;
2543
2544 os_memset(&data, 0, sizeof(data));
2545 os_memcpy(data.client_poll.addr,
2546 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
2547
2548 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_CLIENT_POLL_OK, &data);
2549 }
2550
2551
2552 static void nl80211_tdls_oper_event(struct wpa_driver_nl80211_data *drv,
2553 struct nlattr **tb)
2554 {
2555 union wpa_event_data data;
2556
2557 wpa_printf(MSG_DEBUG, "nl80211: TDLS operation event");
2558
2559 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_TDLS_OPERATION])
2560 return;
2561
2562 os_memset(&data, 0, sizeof(data));
2563 os_memcpy(data.tdls.peer, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
2564 switch (nla_get_u8(tb[NL80211_ATTR_TDLS_OPERATION])) {
2565 case NL80211_TDLS_SETUP:
2566 wpa_printf(MSG_DEBUG, "nl80211: TDLS setup request for peer "
2567 MACSTR, MAC2STR(data.tdls.peer));
2568 data.tdls.oper = TDLS_REQUEST_SETUP;
2569 break;
2570 case NL80211_TDLS_TEARDOWN:
2571 wpa_printf(MSG_DEBUG, "nl80211: TDLS teardown request for peer "
2572 MACSTR, MAC2STR(data.tdls.peer));
2573 data.tdls.oper = TDLS_REQUEST_TEARDOWN;
2574 break;
2575 default:
2576 wpa_printf(MSG_DEBUG, "nl80211: Unsupported TDLS operatione "
2577 "event");
2578 return;
2579 }
2580 if (tb[NL80211_ATTR_REASON_CODE]) {
2581 data.tdls.reason_code =
2582 nla_get_u16(tb[NL80211_ATTR_REASON_CODE]);
2583 }
2584
2585 wpa_supplicant_event(drv->ctx, EVENT_TDLS, &data);
2586 }
2587
2588
2589 static void nl80211_stop_ap(struct wpa_driver_nl80211_data *drv,
2590 struct nlattr **tb)
2591 {
2592 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_UNAVAILABLE, NULL);
2593 }
2594
2595
2596 static void nl80211_connect_failed_event(struct wpa_driver_nl80211_data *drv,
2597 struct nlattr **tb)
2598 {
2599 union wpa_event_data data;
2600 u32 reason;
2601
2602 wpa_printf(MSG_DEBUG, "nl80211: Connect failed event");
2603
2604 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_CONN_FAILED_REASON])
2605 return;
2606
2607 os_memset(&data, 0, sizeof(data));
2608 os_memcpy(data.connect_failed_reason.addr,
2609 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
2610
2611 reason = nla_get_u32(tb[NL80211_ATTR_CONN_FAILED_REASON]);
2612 switch (reason) {
2613 case NL80211_CONN_FAIL_MAX_CLIENTS:
2614 wpa_printf(MSG_DEBUG, "nl80211: Max client reached");
2615 data.connect_failed_reason.code = MAX_CLIENT_REACHED;
2616 break;
2617 case NL80211_CONN_FAIL_BLOCKED_CLIENT:
2618 wpa_printf(MSG_DEBUG, "nl80211: Blocked client " MACSTR
2619 " tried to connect",
2620 MAC2STR(data.connect_failed_reason.addr));
2621 data.connect_failed_reason.code = BLOCKED_CLIENT;
2622 break;
2623 default:
2624 wpa_printf(MSG_DEBUG, "nl8021l: Unknown connect failed reason "
2625 "%u", reason);
2626 return;
2627 }
2628
2629 wpa_supplicant_event(drv->ctx, EVENT_CONNECT_FAILED_REASON, &data);
2630 }
2631
2632
2633 static void nl80211_radar_event(struct wpa_driver_nl80211_data *drv,
2634 struct nlattr **tb)
2635 {
2636 union wpa_event_data data;
2637 enum nl80211_radar_event event_type;
2638
2639 if (!tb[NL80211_ATTR_WIPHY_FREQ] || !tb[NL80211_ATTR_RADAR_EVENT])
2640 return;
2641
2642 os_memset(&data, 0, sizeof(data));
2643 data.dfs_event.freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]);
2644 event_type = nla_get_u32(tb[NL80211_ATTR_RADAR_EVENT]);
2645
2646 /* Check HT params */
2647 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
2648 data.dfs_event.ht_enabled = 1;
2649 data.dfs_event.chan_offset = 0;
2650
2651 switch (nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])) {
2652 case NL80211_CHAN_NO_HT:
2653 data.dfs_event.ht_enabled = 0;
2654 break;
2655 case NL80211_CHAN_HT20:
2656 break;
2657 case NL80211_CHAN_HT40PLUS:
2658 data.dfs_event.chan_offset = 1;
2659 break;
2660 case NL80211_CHAN_HT40MINUS:
2661 data.dfs_event.chan_offset = -1;
2662 break;
2663 }
2664 }
2665
2666 /* Get VHT params */
2667 if (tb[NL80211_ATTR_CHANNEL_WIDTH])
2668 data.dfs_event.chan_width =
2669 convert2width(nla_get_u32(
2670 tb[NL80211_ATTR_CHANNEL_WIDTH]));
2671 if (tb[NL80211_ATTR_CENTER_FREQ1])
2672 data.dfs_event.cf1 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]);
2673 if (tb[NL80211_ATTR_CENTER_FREQ2])
2674 data.dfs_event.cf2 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]);
2675
2676 wpa_printf(MSG_DEBUG, "nl80211: DFS event on freq %d MHz, ht: %d, offset: %d, width: %d, cf1: %dMHz, cf2: %dMHz",
2677 data.dfs_event.freq, data.dfs_event.ht_enabled,
2678 data.dfs_event.chan_offset, data.dfs_event.chan_width,
2679 data.dfs_event.cf1, data.dfs_event.cf2);
2680
2681 switch (event_type) {
2682 case NL80211_RADAR_DETECTED:
2683 wpa_supplicant_event(drv->ctx, EVENT_DFS_RADAR_DETECTED, &data);
2684 break;
2685 case NL80211_RADAR_CAC_FINISHED:
2686 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_FINISHED, &data);
2687 break;
2688 case NL80211_RADAR_CAC_ABORTED:
2689 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_ABORTED, &data);
2690 break;
2691 case NL80211_RADAR_NOP_FINISHED:
2692 wpa_supplicant_event(drv->ctx, EVENT_DFS_NOP_FINISHED, &data);
2693 break;
2694 default:
2695 wpa_printf(MSG_DEBUG, "nl80211: Unknown radar event %d "
2696 "received", event_type);
2697 break;
2698 }
2699 }
2700
2701
2702 static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb,
2703 int wds)
2704 {
2705 struct wpa_driver_nl80211_data *drv = bss->drv;
2706 union wpa_event_data event;
2707
2708 if (!tb[NL80211_ATTR_MAC])
2709 return;
2710
2711 os_memset(&event, 0, sizeof(event));
2712 event.rx_from_unknown.bssid = bss->addr;
2713 event.rx_from_unknown.addr = nla_data(tb[NL80211_ATTR_MAC]);
2714 event.rx_from_unknown.wds = wds;
2715
2716 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event);
2717 }
2718
2719
2720 static void qca_nl80211_avoid_freq(struct wpa_driver_nl80211_data *drv,
2721 const u8 *data, size_t len)
2722 {
2723 u32 i, count;
2724 union wpa_event_data event;
2725 struct wpa_freq_range *range = NULL;
2726 const struct qca_avoid_freq_list *freq_range;
2727
2728 freq_range = (const struct qca_avoid_freq_list *) data;
2729 if (len < sizeof(freq_range->count))
2730 return;
2731
2732 count = freq_range->count;
2733 if (len < sizeof(freq_range->count) +
2734 count * sizeof(struct qca_avoid_freq_range)) {
2735 wpa_printf(MSG_DEBUG, "nl80211: Ignored too short avoid frequency list (len=%u)",
2736 (unsigned int) len);
2737 return;
2738 }
2739
2740 if (count > 0) {
2741 range = os_calloc(count, sizeof(struct wpa_freq_range));
2742 if (range == NULL)
2743 return;
2744 }
2745
2746 os_memset(&event, 0, sizeof(event));
2747 for (i = 0; i < count; i++) {
2748 unsigned int idx = event.freq_range.num;
2749 range[idx].min = freq_range->range[i].start_freq;
2750 range[idx].max = freq_range->range[i].end_freq;
2751 wpa_printf(MSG_DEBUG, "nl80211: Avoid frequency range: %u-%u",
2752 range[idx].min, range[idx].max);
2753 if (range[idx].min > range[idx].max) {
2754 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid frequency range");
2755 continue;
2756 }
2757 event.freq_range.num++;
2758 }
2759 event.freq_range.range = range;
2760
2761 wpa_supplicant_event(drv->ctx, EVENT_AVOID_FREQUENCIES, &event);
2762
2763 os_free(range);
2764 }
2765
2766
2767 static void nl80211_vendor_event_qca(struct wpa_driver_nl80211_data *drv,
2768 u32 subcmd, u8 *data, size_t len)
2769 {
2770 switch (subcmd) {
2771 case QCA_NL80211_VENDOR_SUBCMD_AVOID_FREQUENCY:
2772 qca_nl80211_avoid_freq(drv, data, len);
2773 break;
2774 default:
2775 wpa_printf(MSG_DEBUG,
2776 "nl80211: Ignore unsupported QCA vendor event %u",
2777 subcmd);
2778 break;
2779 }
2780 }
2781
2782
2783 static void nl80211_vendor_event(struct wpa_driver_nl80211_data *drv,
2784 struct nlattr **tb)
2785 {
2786 u32 vendor_id, subcmd, wiphy = 0;
2787 int wiphy_idx;
2788 u8 *data = NULL;
2789 size_t len = 0;
2790
2791 if (!tb[NL80211_ATTR_VENDOR_ID] ||
2792 !tb[NL80211_ATTR_VENDOR_SUBCMD])
2793 return;
2794
2795 vendor_id = nla_get_u32(tb[NL80211_ATTR_VENDOR_ID]);
2796 subcmd = nla_get_u32(tb[NL80211_ATTR_VENDOR_SUBCMD]);
2797
2798 if (tb[NL80211_ATTR_WIPHY])
2799 wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
2800
2801 wpa_printf(MSG_DEBUG, "nl80211: Vendor event: wiphy=%u vendor_id=0x%x subcmd=%u",
2802 wiphy, vendor_id, subcmd);
2803
2804 if (tb[NL80211_ATTR_VENDOR_DATA]) {
2805 data = nla_data(tb[NL80211_ATTR_VENDOR_DATA]);
2806 len = nla_len(tb[NL80211_ATTR_VENDOR_DATA]);
2807 wpa_hexdump(MSG_MSGDUMP, "nl80211: Vendor data", data, len);
2808 }
2809
2810 wiphy_idx = nl80211_get_wiphy_index(drv->first_bss);
2811 if (wiphy_idx >= 0 && wiphy_idx != (int) wiphy) {
2812 wpa_printf(MSG_DEBUG, "nl80211: Ignore vendor event for foreign wiphy %u (own: %d)",
2813 wiphy, wiphy_idx);
2814 return;
2815 }
2816
2817 switch (vendor_id) {
2818 case OUI_QCA:
2819 nl80211_vendor_event_qca(drv, subcmd, data, len);
2820 break;
2821 default:
2822 wpa_printf(MSG_DEBUG, "nl80211: Ignore unsupported vendor event");
2823 break;
2824 }
2825 }
2826
2827
2828 static void do_process_drv_event(struct i802_bss *bss, int cmd,
2829 struct nlattr **tb)
2830 {
2831 struct wpa_driver_nl80211_data *drv = bss->drv;
2832 union wpa_event_data data;
2833
2834 wpa_printf(MSG_DEBUG, "nl80211: Drv Event %d (%s) received for %s",
2835 cmd, nl80211_command_to_string(cmd), bss->ifname);
2836
2837 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED &&
2838 (cmd == NL80211_CMD_NEW_SCAN_RESULTS ||
2839 cmd == NL80211_CMD_SCAN_ABORTED)) {
2840 wpa_driver_nl80211_set_mode(drv->first_bss,
2841 drv->ap_scan_as_station);
2842 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
2843 }
2844
2845 switch (cmd) {
2846 case NL80211_CMD_TRIGGER_SCAN:
2847 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan trigger");
2848 drv->scan_state = SCAN_STARTED;
2849 wpa_supplicant_event(drv->ctx, EVENT_SCAN_STARTED, NULL);
2850 break;
2851 case NL80211_CMD_START_SCHED_SCAN:
2852 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan started");
2853 drv->scan_state = SCHED_SCAN_STARTED;
2854 break;
2855 case NL80211_CMD_SCHED_SCAN_STOPPED:
2856 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan stopped");
2857 drv->scan_state = SCHED_SCAN_STOPPED;
2858 wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL);
2859 break;
2860 case NL80211_CMD_NEW_SCAN_RESULTS:
2861 wpa_dbg(drv->ctx, MSG_DEBUG,
2862 "nl80211: New scan results available");
2863 drv->scan_state = SCAN_COMPLETED;
2864 drv->scan_complete_events = 1;
2865 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
2866 drv->ctx);
2867 send_scan_event(drv, 0, tb);
2868 break;
2869 case NL80211_CMD_SCHED_SCAN_RESULTS:
2870 wpa_dbg(drv->ctx, MSG_DEBUG,
2871 "nl80211: New sched scan results available");
2872 drv->scan_state = SCHED_SCAN_RESULTS;
2873 send_scan_event(drv, 0, tb);
2874 break;
2875 case NL80211_CMD_SCAN_ABORTED:
2876 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan aborted");
2877 drv->scan_state = SCAN_ABORTED;
2878 /*
2879 * Need to indicate that scan results are available in order
2880 * not to make wpa_supplicant stop its scanning.
2881 */
2882 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
2883 drv->ctx);
2884 send_scan_event(drv, 1, tb);
2885 break;
2886 case NL80211_CMD_AUTHENTICATE:
2887 case NL80211_CMD_ASSOCIATE:
2888 case NL80211_CMD_DEAUTHENTICATE:
2889 case NL80211_CMD_DISASSOCIATE:
2890 case NL80211_CMD_FRAME_TX_STATUS:
2891 case NL80211_CMD_UNPROT_DEAUTHENTICATE:
2892 case NL80211_CMD_UNPROT_DISASSOCIATE:
2893 mlme_event(bss, cmd, tb[NL80211_ATTR_FRAME],
2894 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT],
2895 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK],
2896 tb[NL80211_ATTR_COOKIE],
2897 tb[NL80211_ATTR_RX_SIGNAL_DBM]);
2898 break;
2899 case NL80211_CMD_CONNECT:
2900 case NL80211_CMD_ROAM:
2901 mlme_event_connect(drv, cmd,
2902 tb[NL80211_ATTR_STATUS_CODE],
2903 tb[NL80211_ATTR_MAC],
2904 tb[NL80211_ATTR_REQ_IE],
2905 tb[NL80211_ATTR_RESP_IE]);
2906 break;
2907 case NL80211_CMD_CH_SWITCH_NOTIFY:
2908 mlme_event_ch_switch(drv,
2909 tb[NL80211_ATTR_IFINDEX],
2910 tb[NL80211_ATTR_WIPHY_FREQ],
2911 tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE],
2912 tb[NL80211_ATTR_CHANNEL_WIDTH],
2913 tb[NL80211_ATTR_CENTER_FREQ1],
2914 tb[NL80211_ATTR_CENTER_FREQ2]);
2915 break;
2916 case NL80211_CMD_DISCONNECT:
2917 mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE],
2918 tb[NL80211_ATTR_MAC],
2919 tb[NL80211_ATTR_DISCONNECTED_BY_AP]);
2920 break;
2921 case NL80211_CMD_MICHAEL_MIC_FAILURE:
2922 mlme_event_michael_mic_failure(bss, tb);
2923 break;
2924 case NL80211_CMD_JOIN_IBSS:
2925 mlme_event_join_ibss(drv, tb);
2926 break;
2927 case NL80211_CMD_REMAIN_ON_CHANNEL:
2928 mlme_event_remain_on_channel(drv, 0, tb);
2929 break;
2930 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL:
2931 mlme_event_remain_on_channel(drv, 1, tb);
2932 break;
2933 case NL80211_CMD_NOTIFY_CQM:
2934 nl80211_cqm_event(drv, tb);
2935 break;
2936 case NL80211_CMD_REG_CHANGE:
2937 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change");
2938 if (tb[NL80211_ATTR_REG_INITIATOR] == NULL)
2939 break;
2940 os_memset(&data, 0, sizeof(data));
2941 switch (nla_get_u8(tb[NL80211_ATTR_REG_INITIATOR])) {
2942 case NL80211_REGDOM_SET_BY_CORE:
2943 data.channel_list_changed.initiator =
2944 REGDOM_SET_BY_CORE;
2945 break;
2946 case NL80211_REGDOM_SET_BY_USER:
2947 data.channel_list_changed.initiator =
2948 REGDOM_SET_BY_USER;
2949 break;
2950 case NL80211_REGDOM_SET_BY_DRIVER:
2951 data.channel_list_changed.initiator =
2952 REGDOM_SET_BY_DRIVER;
2953 break;
2954 case NL80211_REGDOM_SET_BY_COUNTRY_IE:
2955 data.channel_list_changed.initiator =
2956 REGDOM_SET_BY_COUNTRY_IE;
2957 break;
2958 default:
2959 wpa_printf(MSG_DEBUG, "nl80211: Unknown reg change initiator %d received",
2960 nla_get_u8(tb[NL80211_ATTR_REG_INITIATOR]));
2961 break;
2962 }
2963 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED,
2964 &data);
2965 break;
2966 case NL80211_CMD_REG_BEACON_HINT:
2967 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint");
2968 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED,
2969 NULL);
2970 break;
2971 case NL80211_CMD_NEW_STATION:
2972 nl80211_new_station_event(drv, tb);
2973 break;
2974 case NL80211_CMD_DEL_STATION:
2975 nl80211_del_station_event(drv, tb);
2976 break;
2977 case NL80211_CMD_SET_REKEY_OFFLOAD:
2978 nl80211_rekey_offload_event(drv, tb);
2979 break;
2980 case NL80211_CMD_PMKSA_CANDIDATE:
2981 nl80211_pmksa_candidate_event(drv, tb);
2982 break;
2983 case NL80211_CMD_PROBE_CLIENT:
2984 nl80211_client_probe_event(drv, tb);
2985 break;
2986 case NL80211_CMD_TDLS_OPER:
2987 nl80211_tdls_oper_event(drv, tb);
2988 break;
2989 case NL80211_CMD_CONN_FAILED:
2990 nl80211_connect_failed_event(drv, tb);
2991 break;
2992 case NL80211_CMD_FT_EVENT:
2993 mlme_event_ft_event(drv, tb);
2994 break;
2995 case NL80211_CMD_RADAR_DETECT:
2996 nl80211_radar_event(drv, tb);
2997 break;
2998 case NL80211_CMD_STOP_AP:
2999 nl80211_stop_ap(drv, tb);
3000 break;
3001 case NL80211_CMD_VENDOR:
3002 nl80211_vendor_event(drv, tb);
3003 break;
3004 default:
3005 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Ignored unknown event "
3006 "(cmd=%d)", cmd);
3007 break;
3008 }
3009 }
3010
3011
3012 static int process_drv_event(struct nl_msg *msg, void *arg)
3013 {
3014 struct wpa_driver_nl80211_data *drv = arg;
3015 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3016 struct nlattr *tb[NL80211_ATTR_MAX + 1];
3017 struct i802_bss *bss;
3018 int ifidx = -1;
3019
3020 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3021 genlmsg_attrlen(gnlh, 0), NULL);
3022
3023 if (tb[NL80211_ATTR_IFINDEX]) {
3024 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
3025
3026 for (bss = drv->first_bss; bss; bss = bss->next)
3027 if (ifidx == -1 || ifidx == bss->ifindex) {
3028 do_process_drv_event(bss, gnlh->cmd, tb);
3029 return NL_SKIP;
3030 }
3031 wpa_printf(MSG_DEBUG,
3032 "nl80211: Ignored event (cmd=%d) for foreign interface (ifindex %d)",
3033 gnlh->cmd, ifidx);
3034 } else if (tb[NL80211_ATTR_WDEV]) {
3035 u64 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]);
3036 wpa_printf(MSG_DEBUG, "nl80211: Process event on P2P device");
3037 for (bss = drv->first_bss; bss; bss = bss->next) {
3038 if (bss->wdev_id_set && wdev_id == bss->wdev_id) {
3039 do_process_drv_event(bss, gnlh->cmd, tb);
3040 return NL_SKIP;
3041 }
3042 }
3043 wpa_printf(MSG_DEBUG,
3044 "nl80211: Ignored event (cmd=%d) for foreign interface (wdev 0x%llx)",
3045 gnlh->cmd, (long long unsigned int) wdev_id);
3046 }
3047
3048 return NL_SKIP;
3049 }
3050
3051
3052 static int process_global_event(struct nl_msg *msg, void *arg)
3053 {
3054 struct nl80211_global *global = arg;
3055 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3056 struct nlattr *tb[NL80211_ATTR_MAX + 1];
3057 struct wpa_driver_nl80211_data *drv, *tmp;
3058 int ifidx = -1;
3059 struct i802_bss *bss;
3060 u64 wdev_id = 0;
3061 int wdev_id_set = 0;
3062
3063 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3064 genlmsg_attrlen(gnlh, 0), NULL);
3065
3066 if (tb[NL80211_ATTR_IFINDEX])
3067 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
3068 else if (tb[NL80211_ATTR_WDEV]) {
3069 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]);
3070 wdev_id_set = 1;
3071 }
3072
3073 dl_list_for_each_safe(drv, tmp, &global->interfaces,
3074 struct wpa_driver_nl80211_data, list) {
3075 for (bss = drv->first_bss; bss; bss = bss->next) {
3076 if ((ifidx == -1 && !wdev_id_set) ||
3077 ifidx == bss->ifindex ||
3078 (wdev_id_set && bss->wdev_id_set &&
3079 wdev_id == bss->wdev_id)) {
3080 do_process_drv_event(bss, gnlh->cmd, tb);
3081 return NL_SKIP;
3082 }
3083 }
3084 }
3085
3086 return NL_SKIP;
3087 }
3088
3089
3090 static int process_bss_event(struct nl_msg *msg, void *arg)
3091 {
3092 struct i802_bss *bss = arg;
3093 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3094 struct nlattr *tb[NL80211_ATTR_MAX + 1];
3095
3096 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3097 genlmsg_attrlen(gnlh, 0), NULL);
3098
3099 wpa_printf(MSG_DEBUG, "nl80211: BSS Event %d (%s) received for %s",
3100 gnlh->cmd, nl80211_command_to_string(gnlh->cmd),
3101 bss->ifname);
3102
3103 switch (gnlh->cmd) {
3104 case NL80211_CMD_FRAME:
3105 case NL80211_CMD_FRAME_TX_STATUS:
3106 mlme_event(bss, gnlh->cmd, tb[NL80211_ATTR_FRAME],
3107 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT],
3108 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK],
3109 tb[NL80211_ATTR_COOKIE],
3110 tb[NL80211_ATTR_RX_SIGNAL_DBM]);
3111 break;
3112 case NL80211_CMD_UNEXPECTED_FRAME:
3113 nl80211_spurious_frame(bss, tb, 0);
3114 break;
3115 case NL80211_CMD_UNEXPECTED_4ADDR_FRAME:
3116 nl80211_spurious_frame(bss, tb, 1);
3117 break;
3118 default:
3119 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event "
3120 "(cmd=%d)", gnlh->cmd);
3121 break;
3122 }
3123
3124 return NL_SKIP;
3125 }
3126
3127
3128 static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx,
3129 void *handle)
3130 {
3131 struct nl_cb *cb = eloop_ctx;
3132 int res;
3133
3134 wpa_printf(MSG_MSGDUMP, "nl80211: Event message available");
3135
3136 res = nl_recvmsgs(handle, cb);
3137 if (res) {
3138 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d",
3139 __func__, res);
3140 }
3141 }
3142
3143
3144 /**
3145 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain
3146 * @priv: driver_nl80211 private data
3147 * @alpha2_arg: country to which to switch to
3148 * Returns: 0 on success, -1 on failure
3149 *
3150 * This asks nl80211 to set the regulatory domain for given
3151 * country ISO / IEC alpha2.
3152 */
3153 static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg)
3154 {
3155 struct i802_bss *bss = priv;
3156 struct wpa_driver_nl80211_data *drv = bss->drv;
3157 char alpha2[3];
3158 struct nl_msg *msg;
3159
3160 msg = nlmsg_alloc();
3161 if (!msg)
3162 return -ENOMEM;
3163
3164 alpha2[0] = alpha2_arg[0];
3165 alpha2[1] = alpha2_arg[1];
3166 alpha2[2] = '\0';
3167
3168 nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG);
3169
3170 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2);
3171 if (send_and_recv_msgs(drv, msg, NULL, NULL))
3172 return -EINVAL;
3173 return 0;
3174 nla_put_failure:
3175 nlmsg_free(msg);
3176 return -EINVAL;
3177 }
3178
3179
3180 static int nl80211_get_country(struct nl_msg *msg, void *arg)
3181 {
3182 char *alpha2 = arg;
3183 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
3184 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3185
3186 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3187 genlmsg_attrlen(gnlh, 0), NULL);
3188 if (!tb_msg[NL80211_ATTR_REG_ALPHA2]) {
3189 wpa_printf(MSG_DEBUG, "nl80211: No country information available");
3190 return NL_SKIP;
3191 }
3192 os_strlcpy(alpha2, nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]), 3);
3193 return NL_SKIP;
3194 }
3195
3196
3197 static int wpa_driver_nl80211_get_country(void *priv, char *alpha2)
3198 {
3199 struct i802_bss *bss = priv;
3200 struct wpa_driver_nl80211_data *drv = bss->drv;
3201 struct nl_msg *msg;
3202 int ret;
3203
3204 msg = nlmsg_alloc();
3205 if (!msg)
3206 return -ENOMEM;
3207
3208 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG);
3209 alpha2[0] = '\0';
3210 ret = send_and_recv_msgs(drv, msg, nl80211_get_country, alpha2);
3211 if (!alpha2[0])
3212 ret = -1;
3213
3214 return ret;
3215 }
3216
3217
3218 static int protocol_feature_handler(struct nl_msg *msg, void *arg)
3219 {
3220 u32 *feat = arg;
3221 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
3222 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3223
3224 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3225 genlmsg_attrlen(gnlh, 0), NULL);
3226
3227 if (tb_msg[NL80211_ATTR_PROTOCOL_FEATURES])
3228 *feat = nla_get_u32(tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]);
3229
3230 return NL_SKIP;
3231 }
3232
3233
3234 static u32 get_nl80211_protocol_features(struct wpa_driver_nl80211_data *drv)
3235 {
3236 u32 feat = 0;
3237 struct nl_msg *msg;
3238
3239 msg = nlmsg_alloc();
3240 if (!msg)
3241 goto nla_put_failure;
3242
3243 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_PROTOCOL_FEATURES);
3244 if (send_and_recv_msgs(drv, msg, protocol_feature_handler, &feat) == 0)
3245 return feat;
3246
3247 msg = NULL;
3248 nla_put_failure:
3249 nlmsg_free(msg);
3250 return 0;
3251 }
3252
3253
3254 struct wiphy_info_data {
3255 struct wpa_driver_nl80211_data *drv;
3256 struct wpa_driver_capa *capa;
3257
3258 unsigned int num_multichan_concurrent;
3259
3260 unsigned int error:1;
3261 unsigned int device_ap_sme:1;
3262 unsigned int poll_command_supported:1;
3263 unsigned int data_tx_status:1;
3264 unsigned int monitor_supported:1;
3265 unsigned int auth_supported:1;
3266 unsigned int connect_supported:1;
3267 unsigned int p2p_go_supported:1;
3268 unsigned int p2p_client_supported:1;
3269 unsigned int p2p_concurrent:1;
3270 unsigned int channel_switch_supported:1;
3271 unsigned int set_qos_map_supported:1;
3272 };
3273
3274
3275 static unsigned int probe_resp_offload_support(int supp_protocols)
3276 {
3277 unsigned int prot = 0;
3278
3279 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS)
3280 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS;
3281 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2)
3282 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2;
3283 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P)
3284 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P;
3285 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U)
3286 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING;
3287
3288 return prot;
3289 }
3290
3291
3292 static void wiphy_info_supported_iftypes(struct wiphy_info_data *info,
3293 struct nlattr *tb)
3294 {
3295 struct nlattr *nl_mode;
3296 int i;
3297
3298 if (tb == NULL)
3299 return;
3300
3301 nla_for_each_nested(nl_mode, tb, i) {
3302 switch (nla_type(nl_mode)) {
3303 case NL80211_IFTYPE_AP:
3304 info->capa->flags |= WPA_DRIVER_FLAGS_AP;
3305 break;
3306 case NL80211_IFTYPE_ADHOC:
3307 info->capa->flags |= WPA_DRIVER_FLAGS_IBSS;
3308 break;
3309 case NL80211_IFTYPE_P2P_DEVICE:
3310 info->capa->flags |=
3311 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE;
3312 break;
3313 case NL80211_IFTYPE_P2P_GO:
3314 info->p2p_go_supported = 1;
3315 break;
3316 case NL80211_IFTYPE_P2P_CLIENT:
3317 info->p2p_client_supported = 1;
3318 break;
3319 case NL80211_IFTYPE_MONITOR:
3320 info->monitor_supported = 1;
3321 break;
3322 }
3323 }
3324 }
3325
3326
3327 static int wiphy_info_iface_comb_process(struct wiphy_info_data *info,
3328 struct nlattr *nl_combi)
3329 {
3330 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB];
3331 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT];
3332 struct nlattr *nl_limit, *nl_mode;
3333 int err, rem_limit, rem_mode;
3334 int combination_has_p2p = 0, combination_has_mgd = 0;
3335 static struct nla_policy
3336 iface_combination_policy[NUM_NL80211_IFACE_COMB] = {
3337 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED },
3338 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 },
3339 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG },
3340 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 },
3341 [NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS] = { .type = NLA_U32 },
3342 },
3343 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = {
3344 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED },
3345 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 },
3346 };
3347
3348 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB,
3349 nl_combi, iface_combination_policy);
3350 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] ||
3351 !tb_comb[NL80211_IFACE_COMB_MAXNUM] ||
3352 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS])
3353 return 0; /* broken combination */
3354
3355 if (tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS])
3356 info->capa->flags |= WPA_DRIVER_FLAGS_RADAR;
3357
3358 nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS],
3359 rem_limit) {
3360 err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT,
3361 nl_limit, iface_limit_policy);
3362 if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES])
3363 return 0; /* broken combination */
3364
3365 nla_for_each_nested(nl_mode,
3366 tb_limit[NL80211_IFACE_LIMIT_TYPES],
3367 rem_mode) {
3368 int ift = nla_type(nl_mode);
3369 if (ift == NL80211_IFTYPE_P2P_GO ||
3370 ift == NL80211_IFTYPE_P2P_CLIENT)
3371 combination_has_p2p = 1;
3372 if (ift == NL80211_IFTYPE_STATION)
3373 combination_has_mgd = 1;
3374 }
3375 if (combination_has_p2p && combination_has_mgd)
3376 break;
3377 }
3378
3379 if (combination_has_p2p && combination_has_mgd) {
3380 info->p2p_concurrent = 1;
3381 info->num_multichan_concurrent =
3382 nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]);
3383 return 1;
3384 }
3385
3386 return 0;
3387 }
3388
3389
3390 static void wiphy_info_iface_comb(struct wiphy_info_data *info,
3391 struct nlattr *tb)
3392 {
3393 struct nlattr *nl_combi;
3394 int rem_combi;
3395
3396 if (tb == NULL)
3397 return;
3398
3399 nla_for_each_nested(nl_combi, tb, rem_combi) {
3400 if (wiphy_info_iface_comb_process(info, nl_combi) > 0)
3401 break;
3402 }
3403 }
3404
3405
3406 static void wiphy_info_supp_cmds(struct wiphy_info_data *info,
3407 struct nlattr *tb)
3408 {
3409 struct nlattr *nl_cmd;
3410 int i;
3411
3412 if (tb == NULL)
3413 return;
3414
3415 nla_for_each_nested(nl_cmd, tb, i) {
3416 switch (nla_get_u32(nl_cmd)) {
3417 case NL80211_CMD_AUTHENTICATE:
3418 info->auth_supported = 1;
3419 break;
3420 case NL80211_CMD_CONNECT:
3421 info->connect_supported = 1;
3422 break;
3423 case NL80211_CMD_START_SCHED_SCAN:
3424 info->capa->sched_scan_supported = 1;
3425 break;
3426 case NL80211_CMD_PROBE_CLIENT:
3427 info->poll_command_supported = 1;
3428 break;
3429 case NL80211_CMD_CHANNEL_SWITCH:
3430 info->channel_switch_supported = 1;
3431 break;
3432 case NL80211_CMD_SET_QOS_MAP:
3433 info->set_qos_map_supported = 1;
3434 break;
3435 }
3436 }
3437 }
3438
3439
3440 static void wiphy_info_cipher_suites(struct wiphy_info_data *info,
3441 struct nlattr *tb)
3442 {
3443 int i, num;
3444 u32 *ciphers;
3445
3446 if (tb == NULL)
3447 return;
3448
3449 num = nla_len(tb) / sizeof(u32);
3450 ciphers = nla_data(tb);
3451 for (i = 0; i < num; i++) {
3452 u32 c = ciphers[i];
3453
3454 wpa_printf(MSG_DEBUG, "nl80211: Supported cipher %02x-%02x-%02x:%d",
3455 c >> 24, (c >> 16) & 0xff,
3456 (c >> 8) & 0xff, c & 0xff);
3457 switch (c) {
3458 case WLAN_CIPHER_SUITE_CCMP_256:
3459 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP_256;
3460 break;
3461 case WLAN_CIPHER_SUITE_GCMP_256:
3462 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP_256;
3463 break;
3464 case WLAN_CIPHER_SUITE_CCMP:
3465 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP;
3466 break;
3467 case WLAN_CIPHER_SUITE_GCMP:
3468 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP;
3469 break;
3470 case WLAN_CIPHER_SUITE_TKIP:
3471 info->capa->enc |= WPA_DRIVER_CAPA_ENC_TKIP;
3472 break;
3473 case WLAN_CIPHER_SUITE_WEP104:
3474 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP104;
3475 break;
3476 case WLAN_CIPHER_SUITE_WEP40:
3477 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP40;
3478 break;
3479 case WLAN_CIPHER_SUITE_AES_CMAC:
3480 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP;
3481 break;
3482 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
3483 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_128;
3484 break;
3485 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
3486 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_256;
3487 break;
3488 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
3489 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_CMAC_256;
3490 break;
3491 }
3492 }
3493 }
3494
3495
3496 static void wiphy_info_max_roc(struct wpa_driver_capa *capa,
3497 struct nlattr *tb)
3498 {
3499 if (tb)
3500 capa->max_remain_on_chan = nla_get_u32(tb);
3501 }
3502
3503
3504 static void wiphy_info_tdls(struct wpa_driver_capa *capa, struct nlattr *tdls,
3505 struct nlattr *ext_setup)
3506 {
3507 if (tdls == NULL)
3508 return;
3509
3510 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported");
3511 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT;
3512
3513 if (ext_setup) {
3514 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup");
3515 capa->flags |= WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP;
3516 }
3517 }
3518
3519
3520 static void wiphy_info_feature_flags(struct wiphy_info_data *info,
3521 struct nlattr *tb)
3522 {
3523 u32 flags;
3524 struct wpa_driver_capa *capa = info->capa;
3525
3526 if (tb == NULL)
3527 return;
3528
3529 flags = nla_get_u32(tb);
3530
3531 if (flags & NL80211_FEATURE_SK_TX_STATUS)
3532 info->data_tx_status = 1;
3533
3534 if (flags & NL80211_FEATURE_INACTIVITY_TIMER)
3535 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER;
3536
3537 if (flags & NL80211_FEATURE_SAE)
3538 capa->flags |= WPA_DRIVER_FLAGS_SAE;
3539
3540 if (flags & NL80211_FEATURE_NEED_OBSS_SCAN)
3541 capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN;
3542 }
3543
3544
3545 static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa,
3546 struct nlattr *tb)
3547 {
3548 u32 protocols;
3549
3550 if (tb == NULL)
3551 return;
3552
3553 protocols = nla_get_u32(tb);
3554 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP "
3555 "mode");
3556 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD;
3557 capa->probe_resp_offloads = probe_resp_offload_support(protocols);
3558 }
3559
3560
3561 static int wiphy_info_handler(struct nl_msg *msg, void *arg)
3562 {
3563 struct nlattr *tb[NL80211_ATTR_MAX + 1];
3564 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3565 struct wiphy_info_data *info = arg;
3566 struct wpa_driver_capa *capa = info->capa;
3567 struct wpa_driver_nl80211_data *drv = info->drv;
3568
3569 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3570 genlmsg_attrlen(gnlh, 0), NULL);
3571
3572 if (tb[NL80211_ATTR_WIPHY_NAME])
3573 os_strlcpy(drv->phyname,
3574 nla_get_string(tb[NL80211_ATTR_WIPHY_NAME]),
3575 sizeof(drv->phyname));
3576 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS])
3577 capa->max_scan_ssids =
3578 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]);
3579
3580 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS])
3581 capa->max_sched_scan_ssids =
3582 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]);
3583
3584 if (tb[NL80211_ATTR_MAX_MATCH_SETS])
3585 capa->max_match_sets =
3586 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]);
3587
3588 if (tb[NL80211_ATTR_MAC_ACL_MAX])
3589 capa->max_acl_mac_addrs =
3590 nla_get_u8(tb[NL80211_ATTR_MAC_ACL_MAX]);
3591
3592 wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]);
3593 wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]);
3594 wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]);
3595 wiphy_info_cipher_suites(info, tb[NL80211_ATTR_CIPHER_SUITES]);
3596
3597 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) {
3598 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based "
3599 "off-channel TX");
3600 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX;
3601 }
3602
3603 if (tb[NL80211_ATTR_ROAM_SUPPORT]) {
3604 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming");
3605 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION;
3606 }
3607
3608 wiphy_info_max_roc(capa,
3609 tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]);
3610
3611 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD])
3612 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD;
3613
3614 wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT],
3615 tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]);
3616
3617 if (tb[NL80211_ATTR_DEVICE_AP_SME])
3618 info->device_ap_sme = 1;
3619
3620 wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]);
3621 wiphy_info_probe_resp_offload(capa,
3622 tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]);
3623
3624 if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] &&
3625 drv->extended_capa == NULL) {
3626 drv->extended_capa =
3627 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA]));
3628 if (drv->extended_capa) {
3629 os_memcpy(drv->extended_capa,
3630 nla_data(tb[NL80211_ATTR_EXT_CAPA]),
3631 nla_len(tb[NL80211_ATTR_EXT_CAPA]));
3632 drv->extended_capa_len =
3633 nla_len(tb[NL80211_ATTR_EXT_CAPA]);
3634 }
3635 drv->extended_capa_mask =
3636 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA]));
3637 if (drv->extended_capa_mask) {
3638 os_memcpy(drv->extended_capa_mask,
3639 nla_data(tb[NL80211_ATTR_EXT_CAPA]),
3640 nla_len(tb[NL80211_ATTR_EXT_CAPA]));
3641 } else {
3642 os_free(drv->extended_capa);
3643 drv->extended_capa = NULL;
3644 drv->extended_capa_len = 0;
3645 }
3646 }
3647
3648 if (tb[NL80211_ATTR_VENDOR_DATA]) {
3649 struct nlattr *nl;
3650 int rem;
3651
3652 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_DATA], rem) {
3653 struct nl80211_vendor_cmd_info *vinfo;
3654 if (nla_len(nl) != sizeof(*vinfo)) {
3655 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info");
3656 continue;
3657 }
3658 vinfo = nla_data(nl);
3659 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor command: vendor_id=0x%x subcmd=%u",
3660 vinfo->vendor_id, vinfo->subcmd);
3661 }
3662 }
3663
3664 if (tb[NL80211_ATTR_VENDOR_EVENTS]) {
3665 struct nlattr *nl;
3666 int rem;
3667
3668 nla_for_each_nested(nl, tb[NL80211_ATTR_VENDOR_EVENTS], rem) {
3669 struct nl80211_vendor_cmd_info *vinfo;
3670 if (nla_len(nl) != sizeof(*vinfo)) {
3671 wpa_printf(MSG_DEBUG, "nl80211: Unexpected vendor data info");
3672 continue;
3673 }
3674 vinfo = nla_data(nl);
3675 wpa_printf(MSG_DEBUG, "nl80211: Supported vendor event: vendor_id=0x%x subcmd=%u",
3676 vinfo->vendor_id, vinfo->subcmd);
3677 }
3678 }
3679
3680 return NL_SKIP;
3681 }
3682
3683
3684 static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv,
3685 struct wiphy_info_data *info)
3686 {
3687 u32 feat;
3688 struct nl_msg *msg;
3689
3690 os_memset(info, 0, sizeof(*info));
3691 info->capa = &drv->capa;
3692 info->drv = drv;
3693
3694 msg = nlmsg_alloc();
3695 if (!msg)
3696 return -1;
3697
3698 feat = get_nl80211_protocol_features(drv);
3699 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)
3700 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY);
3701 else
3702 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY);
3703
3704 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP);
3705 if (nl80211_set_iface_id(msg, drv->first_bss) < 0)
3706 goto nla_put_failure;
3707
3708 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info))
3709 return -1;
3710
3711 if (info->auth_supported)
3712 drv->capa.flags |= WPA_DRIVER_FLAGS_SME;
3713 else if (!info->connect_supported) {
3714 wpa_printf(MSG_INFO, "nl80211: Driver does not support "
3715 "authentication/association or connect commands");
3716 info->error = 1;
3717 }
3718
3719 if (info->p2p_go_supported && info->p2p_client_supported)
3720 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE;
3721 if (info->p2p_concurrent) {
3722 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
3723 "interface (driver advertised support)");
3724 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
3725 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
3726 }
3727 if (info->num_multichan_concurrent > 1) {
3728 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel "
3729 "concurrent (driver advertised support)");
3730 drv->capa.num_multichan_concurrent =
3731 info->num_multichan_concurrent;
3732 }
3733
3734 /* default to 5000 since early versions of mac80211 don't set it */
3735 if (!drv->capa.max_remain_on_chan)
3736 drv->capa.max_remain_on_chan = 5000;
3737
3738 if (info->channel_switch_supported)
3739 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_CSA;
3740
3741 return 0;
3742 nla_put_failure:
3743 nlmsg_free(msg);
3744 return -1;
3745 }
3746
3747
3748 static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
3749 {
3750 struct wiphy_info_data info;
3751 if (wpa_driver_nl80211_get_info(drv, &info))
3752 return -1;
3753
3754 if (info.error)
3755 return -1;
3756
3757 drv->has_capability = 1;
3758 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
3759 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
3760 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
3761 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
3762 drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
3763 WPA_DRIVER_AUTH_SHARED |
3764 WPA_DRIVER_AUTH_LEAP;
3765
3766 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES;
3767 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE;
3768 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
3769
3770 if (!info.device_ap_sme) {
3771 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS;
3772
3773 /*
3774 * No AP SME is currently assumed to also indicate no AP MLME
3775 * in the driver/firmware.
3776 */
3777 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME;
3778 }
3779
3780 drv->device_ap_sme = info.device_ap_sme;
3781 drv->poll_command_supported = info.poll_command_supported;
3782 drv->data_tx_status = info.data_tx_status;
3783 if (info.set_qos_map_supported)
3784 drv->capa.flags |= WPA_DRIVER_FLAGS_QOS_MAPPING;
3785
3786 /*
3787 * If poll command and tx status are supported, mac80211 is new enough
3788 * to have everything we need to not need monitor interfaces.
3789 */
3790 drv->use_monitor = !info.poll_command_supported || !info.data_tx_status;
3791
3792 if (drv->device_ap_sme && drv->use_monitor) {
3793 /*
3794 * Non-mac80211 drivers may not support monitor interface.
3795 * Make sure we do not get stuck with incorrect capability here
3796 * by explicitly testing this.
3797 */
3798 if (!info.monitor_supported) {
3799 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor "
3800 "with device_ap_sme since no monitor mode "
3801 "support detected");
3802 drv->use_monitor = 0;
3803 }
3804 }
3805
3806 /*
3807 * If we aren't going to use monitor interfaces, but the
3808 * driver doesn't support data TX status, we won't get TX
3809 * status for EAPOL frames.
3810 */
3811 if (!drv->use_monitor && !info.data_tx_status)
3812 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
3813
3814 return 0;
3815 }
3816
3817
3818 #ifdef ANDROID
3819 static int android_genl_ctrl_resolve(struct nl_handle *handle,
3820 const char *name)
3821 {
3822 /*
3823 * Android ICS has very minimal genl_ctrl_resolve() implementation, so
3824 * need to work around that.
3825 */
3826 struct nl_cache *cache = NULL;
3827 struct genl_family *nl80211 = NULL;
3828 int id = -1;
3829
3830 if (genl_ctrl_alloc_cache(handle, &cache) < 0) {
3831 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
3832 "netlink cache");
3833 goto fail;
3834 }
3835
3836 nl80211 = genl_ctrl_search_by_name(cache, name);
3837 if (nl80211 == NULL)
3838 goto fail;
3839
3840 id = genl_family_get_id(nl80211);
3841
3842 fail:
3843 if (nl80211)
3844 genl_family_put(nl80211);
3845 if (cache)
3846 nl_cache_free(cache);
3847
3848 return id;
3849 }
3850 #define genl_ctrl_resolve android_genl_ctrl_resolve
3851 #endif /* ANDROID */
3852
3853
3854 static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global)
3855 {
3856 int ret;
3857
3858 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
3859 if (global->nl_cb == NULL) {
3860 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
3861 "callbacks");
3862 return -1;
3863 }
3864
3865 global->nl = nl_create_handle(global->nl_cb, "nl");
3866 if (global->nl == NULL)
3867 goto err;
3868
3869 global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211");
3870 if (global->nl80211_id < 0) {
3871 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not "
3872 "found");
3873 goto err;
3874 }
3875
3876 global->nl_event = nl_create_handle(global->nl_cb, "event");
3877 if (global->nl_event == NULL)
3878 goto err;
3879
3880 ret = nl_get_multicast_id(global, "nl80211", "scan");
3881 if (ret >= 0)
3882 ret = nl_socket_add_membership(global->nl_event, ret);
3883 if (ret < 0) {
3884 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
3885 "membership for scan events: %d (%s)",
3886 ret, strerror(-ret));
3887 goto err;
3888 }
3889
3890 ret = nl_get_multicast_id(global, "nl80211", "mlme");
3891 if (ret >= 0)
3892 ret = nl_socket_add_membership(global->nl_event, ret);
3893 if (ret < 0) {
3894 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
3895 "membership for mlme events: %d (%s)",
3896 ret, strerror(-ret));
3897 goto err;
3898 }
3899
3900 ret = nl_get_multicast_id(global, "nl80211", "regulatory");
3901 if (ret >= 0)
3902 ret = nl_socket_add_membership(global->nl_event, ret);
3903 if (ret < 0) {
3904 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast "
3905 "membership for regulatory events: %d (%s)",
3906 ret, strerror(-ret));
3907 /* Continue without regulatory events */
3908 }
3909
3910 ret = nl_get_multicast_id(global, "nl80211", "vendor");
3911 if (ret >= 0)
3912 ret = nl_socket_add_membership(global->nl_event, ret);
3913 if (ret < 0) {
3914 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast "
3915 "membership for vendor events: %d (%s)",
3916 ret, strerror(-ret));
3917 /* Continue without vendor events */
3918 }
3919
3920 nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
3921 no_seq_check, NULL);
3922 nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
3923 process_global_event, global);
3924
3925 nl80211_register_eloop_read(&global->nl_event,
3926 wpa_driver_nl80211_event_receive,
3927 global->nl_cb);
3928
3929 return 0;
3930
3931 err:
3932 nl_destroy_handles(&global->nl_event);
3933 nl_destroy_handles(&global->nl);
3934 nl_cb_put(global->nl_cb);
3935 global->nl_cb = NULL;
3936 return -1;
3937 }
3938
3939
3940 static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv)
3941 {
3942 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
3943 if (!drv->nl_cb) {
3944 wpa_printf(MSG_ERROR, "nl80211: Failed to alloc cb struct");
3945 return -1;
3946 }
3947
3948 nl_cb_set(drv->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
3949 no_seq_check, NULL);
3950 nl_cb_set(drv->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
3951 process_drv_event, drv);
3952
3953 return 0;
3954 }
3955
3956
3957 static void wpa_driver_nl80211_rfkill_blocked(void *ctx)
3958 {
3959 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked");
3960 /*
3961 * This may be for any interface; use ifdown event to disable
3962 * interface.
3963 */
3964 }
3965
3966
3967 static void wpa_driver_nl80211_rfkill_unblocked(void *ctx)
3968 {
3969 struct wpa_driver_nl80211_data *drv = ctx;
3970 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked");
3971 if (i802_set_iface_flags(drv->first_bss, 1)) {
3972 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP "
3973 "after rfkill unblock");
3974 return;
3975 }
3976 /* rtnetlink ifup handler will report interface as enabled */
3977 }
3978
3979
3980 static void wpa_driver_nl80211_handle_eapol_tx_status(int sock,
3981 void *eloop_ctx,
3982 void *handle)
3983 {
3984 struct wpa_driver_nl80211_data *drv = eloop_ctx;
3985 u8 data[2048];
3986 struct msghdr msg;
3987 struct iovec entry;
3988 u8 control[512];
3989 struct cmsghdr *cmsg;
3990 int res, found_ee = 0, found_wifi = 0, acked = 0;
3991 union wpa_event_data event;
3992
3993 memset(&msg, 0, sizeof(msg));
3994 msg.msg_iov = &entry;
3995 msg.msg_iovlen = 1;
3996 entry.iov_base = data;
3997 entry.iov_len = sizeof(data);
3998 msg.msg_control = &control;
3999 msg.msg_controllen = sizeof(control);
4000
4001 res = recvmsg(sock, &msg, MSG_ERRQUEUE);
4002 /* if error or not fitting 802.3 header, return */
4003 if (res < 14)
4004 return;
4005
4006 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg))
4007 {
4008 if (cmsg->cmsg_level == SOL_SOCKET &&
4009 cmsg->cmsg_type == SCM_WIFI_STATUS) {
4010 int *ack;
4011
4012 found_wifi = 1;
4013 ack = (void *)CMSG_DATA(cmsg);
4014 acked = *ack;
4015 }
4016
4017 if (cmsg->cmsg_level == SOL_PACKET &&
4018 cmsg->cmsg_type == PACKET_TX_TIMESTAMP) {
4019 struct sock_extended_err *err =
4020 (struct sock_extended_err *)CMSG_DATA(cmsg);
4021
4022 if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS)
4023 found_ee = 1;
4024 }
4025 }
4026
4027 if (!found_ee || !found_wifi)
4028 return;
4029
4030 memset(&event, 0, sizeof(event));
4031 event.eapol_tx_status.dst = data;
4032 event.eapol_tx_status.data = data + 14;
4033 event.eapol_tx_status.data_len = res - 14;
4034 event.eapol_tx_status.ack = acked;
4035 wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event);
4036 }
4037
4038
4039 static int nl80211_init_bss(struct i802_bss *bss)
4040 {
4041 bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
4042 if (!bss->nl_cb)
4043 return -1;
4044
4045 nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
4046 no_seq_check, NULL);
4047 nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
4048 process_bss_event, bss);
4049
4050 return 0;
4051 }
4052
4053
4054 static void nl80211_destroy_bss(struct i802_bss *bss)
4055 {
4056 nl_cb_put(bss->nl_cb);
4057 bss->nl_cb = NULL;
4058 }
4059
4060
4061 static void * wpa_driver_nl80211_drv_init(void *ctx, const char *ifname,
4062 void *global_priv, int hostapd,
4063 const u8 *set_addr)
4064 {
4065 struct wpa_driver_nl80211_data *drv;
4066 struct rfkill_config *rcfg;
4067 struct i802_bss *bss;
4068
4069 if (global_priv == NULL)
4070 return NULL;
4071 drv = os_zalloc(sizeof(*drv));
4072 if (drv == NULL)
4073 return NULL;
4074 drv->global = global_priv;
4075 drv->ctx = ctx;
4076 drv->hostapd = !!hostapd;
4077 drv->eapol_sock = -1;
4078 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
4079 drv->if_indices = drv->default_if_indices;
4080
4081 drv->first_bss = os_zalloc(sizeof(*drv->first_bss));
4082 if (!drv->first_bss) {
4083 os_free(drv);
4084 return NULL;
4085 }
4086 bss = drv->first_bss;
4087 bss->drv = drv;
4088 bss->ctx = ctx;
4089
4090 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname));
4091 drv->monitor_ifidx = -1;
4092 drv->monitor_sock = -1;
4093 drv->eapol_tx_sock = -1;
4094 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
4095
4096 if (wpa_driver_nl80211_init_nl(drv)) {
4097 os_free(drv);
4098 return NULL;
4099 }
4100
4101 if (nl80211_init_bss(bss))
4102 goto failed;
4103
4104 rcfg = os_zalloc(sizeof(*rcfg));
4105 if (rcfg == NULL)
4106 goto failed;
4107 rcfg->ctx = drv;
4108 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname));
4109 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked;
4110 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked;
4111 drv->rfkill = rfkill_init(rcfg);
4112 if (drv->rfkill == NULL) {
4113 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available");
4114 os_free(rcfg);
4115 }
4116
4117 if (linux_iface_up(drv->global->ioctl_sock, ifname) > 0)
4118 drv->start_iface_up = 1;
4119
4120 if (wpa_driver_nl80211_finish_drv_init(drv, set_addr, 1))
4121 goto failed;
4122
4123 drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0);
4124 if (drv->eapol_tx_sock < 0)
4125 goto failed;
4126
4127 if (drv->data_tx_status) {
4128 int enabled = 1;
4129
4130 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS,
4131 &enabled, sizeof(enabled)) < 0) {
4132 wpa_printf(MSG_DEBUG,
4133 "nl80211: wifi status sockopt failed\n");
4134 drv->data_tx_status = 0;
4135 if (!drv->use_monitor)
4136 drv->capa.flags &=
4137 ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
4138 } else {
4139 eloop_register_read_sock(drv->eapol_tx_sock,
4140 wpa_driver_nl80211_handle_eapol_tx_status,
4141 drv, NULL);
4142 }
4143 }
4144
4145 if (drv->global) {
4146 dl_list_add(&drv->global->interfaces, &drv->list);
4147 drv->in_interface_list = 1;
4148 }
4149
4150 return bss;
4151
4152 failed:
4153 wpa_driver_nl80211_deinit(bss);
4154 return NULL;
4155 }
4156
4157
4158 /**
4159 * wpa_driver_nl80211_init - Initialize nl80211 driver interface
4160 * @ctx: context to be used when calling wpa_supplicant functions,
4161 * e.g., wpa_supplicant_event()
4162 * @ifname: interface name, e.g., wlan0
4163 * @global_priv: private driver global data from global_init()
4164 * Returns: Pointer to private data, %NULL on failure
4165 */
4166 static void * wpa_driver_nl80211_init(void *ctx, const char *ifname,
4167 void *global_priv)
4168 {
4169 return wpa_driver_nl80211_drv_init(ctx, ifname, global_priv, 0, NULL);
4170 }
4171
4172
4173 static int nl80211_register_frame(struct i802_bss *bss,
4174 struct nl_handle *nl_handle,
4175 u16 type, const u8 *match, size_t match_len)
4176 {
4177 struct wpa_driver_nl80211_data *drv = bss->drv;
4178 struct nl_msg *msg;
4179 int ret = -1;
4180 char buf[30];
4181
4182 msg = nlmsg_alloc();
4183 if (!msg)
4184 return -1;
4185
4186 buf[0] = '\0';
4187 wpa_snprintf_hex(buf, sizeof(buf), match, match_len);
4188 wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x nl_handle=%p match=%s",
4189 type, nl_handle, buf);
4190
4191 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION);
4192
4193 if (nl80211_set_iface_id(msg, bss) < 0)
4194 goto nla_put_failure;
4195
4196 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type);
4197 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match);
4198
4199 ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL);
4200 msg = NULL;
4201 if (ret) {
4202 wpa_printf(MSG_DEBUG, "nl80211: Register frame command "
4203 "failed (type=%u): ret=%d (%s)",
4204 type, ret, strerror(-ret));
4205 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match",
4206 match, match_len);
4207 goto nla_put_failure;
4208 }
4209 ret = 0;
4210 nla_put_failure:
4211 nlmsg_free(msg);
4212 return ret;
4213 }
4214
4215
4216 static int nl80211_alloc_mgmt_handle(struct i802_bss *bss)
4217 {
4218 struct wpa_driver_nl80211_data *drv = bss->drv;
4219
4220 if (bss->nl_mgmt) {
4221 wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting "
4222 "already on! (nl_mgmt=%p)", bss->nl_mgmt);
4223 return -1;
4224 }
4225
4226 bss->nl_mgmt = nl_create_handle(drv->nl_cb, "mgmt");
4227 if (bss->nl_mgmt == NULL)
4228 return -1;
4229
4230 return 0;
4231 }
4232
4233
4234 static void nl80211_mgmt_handle_register_eloop(struct i802_bss *bss)
4235 {
4236 nl80211_register_eloop_read(&bss->nl_mgmt,
4237 wpa_driver_nl80211_event_receive,
4238 bss->nl_cb);
4239 }
4240
4241
4242 static int nl80211_register_action_frame(struct i802_bss *bss,
4243 const u8 *match, size_t match_len)
4244 {
4245 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4);
4246 return nl80211_register_frame(bss, bss->nl_mgmt,
4247 type, match, match_len);
4248 }
4249
4250
4251 static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss)
4252 {
4253 struct wpa_driver_nl80211_data *drv = bss->drv;
4254 int ret = 0;
4255
4256 if (nl80211_alloc_mgmt_handle(bss))
4257 return -1;
4258 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP "
4259 "handle %p", bss->nl_mgmt);
4260
4261 if (drv->nlmode == NL80211_IFTYPE_ADHOC) {
4262 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_AUTH << 4);
4263
4264 /* register for any AUTH message */
4265 nl80211_register_frame(bss, bss->nl_mgmt, type, NULL, 0);
4266 }
4267
4268 #ifdef CONFIG_INTERWORKING
4269 /* QoS Map Configure */
4270 if (nl80211_register_action_frame(bss, (u8 *) "\x01\x04", 2) < 0)
4271 ret = -1;
4272 #endif /* CONFIG_INTERWORKING */
4273 #if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING)
4274 /* GAS Initial Request */
4275 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0)
4276 ret = -1;
4277 /* GAS Initial Response */
4278 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0)
4279 ret = -1;
4280 /* GAS Comeback Request */
4281 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0)
4282 ret = -1;
4283 /* GAS Comeback Response */
4284 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0)
4285 ret = -1;
4286 /* Protected GAS Initial Request */
4287 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0a", 2) < 0)
4288 ret = -1;
4289 /* Protected GAS Initial Response */
4290 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0b", 2) < 0)
4291 ret = -1;
4292 /* Protected GAS Comeback Request */
4293 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0c", 2) < 0)
4294 ret = -1;
4295 /* Protected GAS Comeback Response */
4296 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0d", 2) < 0)
4297 ret = -1;
4298 #endif /* CONFIG_P2P || CONFIG_INTERWORKING */
4299 #ifdef CONFIG_P2P
4300 /* P2P Public Action */
4301 if (nl80211_register_action_frame(bss,
4302 (u8 *) "\x04\x09\x50\x6f\x9a\x09",
4303 6) < 0)
4304 ret = -1;
4305 /* P2P Action */
4306 if (nl80211_register_action_frame(bss,
4307 (u8 *) "\x7f\x50\x6f\x9a\x09",
4308 5) < 0)
4309 ret = -1;
4310 #endif /* CONFIG_P2P */
4311 #ifdef CONFIG_IEEE80211W
4312 /* SA Query Response */
4313 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0)
4314 ret = -1;
4315 #endif /* CONFIG_IEEE80211W */
4316 #ifdef CONFIG_TDLS
4317 if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) {
4318 /* TDLS Discovery Response */
4319 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) <
4320 0)
4321 ret = -1;
4322 }
4323 #endif /* CONFIG_TDLS */
4324
4325 /* FT Action frames */
4326 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0)
4327 ret = -1;
4328 else
4329 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT |
4330 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK;
4331
4332 /* WNM - BSS Transition Management Request */
4333 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0)
4334 ret = -1;
4335 /* WNM-Sleep Mode Response */
4336 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x11", 2) < 0)
4337 ret = -1;
4338
4339 nl80211_mgmt_handle_register_eloop(bss);
4340
4341 return ret;
4342 }
4343
4344
4345 static int nl80211_register_spurious_class3(struct i802_bss *bss)
4346 {
4347 struct wpa_driver_nl80211_data *drv = bss->drv;
4348 struct nl_msg *msg;
4349 int ret = -1;
4350
4351 msg = nlmsg_alloc();
4352 if (!msg)
4353 return -1;
4354
4355 nl80211_cmd(drv, msg, 0, NL80211_CMD_UNEXPECTED_FRAME);
4356
4357 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
4358
4359 ret = send_and_recv(drv->global, bss->nl_mgmt, msg, NULL, NULL);
4360 msg = NULL;
4361 if (ret) {
4362 wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 "
4363 "failed: ret=%d (%s)",
4364 ret, strerror(-ret));
4365 goto nla_put_failure;
4366 }
4367 ret = 0;
4368 nla_put_failure:
4369 nlmsg_free(msg);
4370 return ret;
4371 }
4372
4373
4374 static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss)
4375 {
4376 static const int stypes[] = {
4377 WLAN_FC_STYPE_AUTH,
4378 WLAN_FC_STYPE_ASSOC_REQ,
4379 WLAN_FC_STYPE_REASSOC_REQ,
4380 WLAN_FC_STYPE_DISASSOC,
4381 WLAN_FC_STYPE_DEAUTH,
4382 WLAN_FC_STYPE_ACTION,
4383 WLAN_FC_STYPE_PROBE_REQ,
4384 /* Beacon doesn't work as mac80211 doesn't currently allow
4385 * it, but it wouldn't really be the right thing anyway as
4386 * it isn't per interface ... maybe just dump the scan
4387 * results periodically for OLBC?
4388 */
4389 // WLAN_FC_STYPE_BEACON,
4390 };
4391 unsigned int i;
4392
4393 if (nl80211_alloc_mgmt_handle(bss))
4394 return -1;
4395 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP "
4396 "handle %p", bss->nl_mgmt);
4397
4398 for (i = 0; i < ARRAY_SIZE(stypes); i++) {
4399 if (nl80211_register_frame(bss, bss->nl_mgmt,
4400 (WLAN_FC_TYPE_MGMT << 2) |
4401 (stypes[i] << 4),
4402 NULL, 0) < 0) {
4403 goto out_err;
4404 }
4405 }
4406
4407 if (nl80211_register_spurious_class3(bss))
4408 goto out_err;
4409
4410 if (nl80211_get_wiphy_data_ap(bss) == NULL)
4411 goto out_err;
4412
4413 nl80211_mgmt_handle_register_eloop(bss);
4414 return 0;
4415
4416 out_err:
4417 nl_destroy_handles(&bss->nl_mgmt);
4418 return -1;
4419 }
4420
4421
4422 static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss)
4423 {
4424 if (nl80211_alloc_mgmt_handle(bss))
4425 return -1;
4426 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP "
4427 "handle %p (device SME)", bss->nl_mgmt);
4428
4429 if (nl80211_register_frame(bss, bss->nl_mgmt,
4430 (WLAN_FC_TYPE_MGMT << 2) |
4431 (WLAN_FC_STYPE_ACTION << 4),
4432 NULL, 0) < 0)
4433 goto out_err;
4434
4435 nl80211_mgmt_handle_register_eloop(bss);
4436 return 0;
4437
4438 out_err:
4439 nl_destroy_handles(&bss->nl_mgmt);
4440 return -1;
4441 }
4442
4443
4444 static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason)
4445 {
4446 if (bss->nl_mgmt == NULL)
4447 return;
4448 wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p "
4449 "(%s)", bss->nl_mgmt, reason);
4450 nl80211_destroy_eloop_handle(&bss->nl_mgmt);
4451
4452 nl80211_put_wiphy_data_ap(bss);
4453 }
4454
4455
4456 static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx)
4457 {
4458 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL);
4459 }
4460
4461
4462 static void nl80211_del_p2pdev(struct i802_bss *bss)
4463 {
4464 struct wpa_driver_nl80211_data *drv = bss->drv;
4465 struct nl_msg *msg;
4466 int ret;
4467
4468 msg = nlmsg_alloc();
4469 if (!msg)
4470 return;
4471
4472 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE);
4473 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id);
4474
4475 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4476 msg = NULL;
4477
4478 wpa_printf(MSG_DEBUG, "nl80211: Delete P2P Device %s (0x%llx): %s",
4479 bss->ifname, (long long unsigned int) bss->wdev_id,
4480 strerror(-ret));
4481
4482 nla_put_failure:
4483 nlmsg_free(msg);
4484 }
4485
4486
4487 static int nl80211_set_p2pdev(struct i802_bss *bss, int start)
4488 {
4489 struct wpa_driver_nl80211_data *drv = bss->drv;
4490 struct nl_msg *msg;
4491 int ret = -1;
4492
4493 msg = nlmsg_alloc();
4494 if (!msg)
4495 return -1;
4496
4497 if (start)
4498 nl80211_cmd(drv, msg, 0, NL80211_CMD_START_P2P_DEVICE);
4499 else
4500 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_P2P_DEVICE);
4501
4502 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id);
4503
4504 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4505 msg = NULL;
4506
4507 wpa_printf(MSG_DEBUG, "nl80211: %s P2P Device %s (0x%llx): %s",
4508 start ? "Start" : "Stop",
4509 bss->ifname, (long long unsigned int) bss->wdev_id,
4510 strerror(-ret));
4511
4512 nla_put_failure:
4513 nlmsg_free(msg);
4514 return ret;
4515 }
4516
4517
4518 static int i802_set_iface_flags(struct i802_bss *bss, int up)
4519 {
4520 enum nl80211_iftype nlmode;
4521
4522 nlmode = nl80211_get_ifmode(bss);
4523 if (nlmode != NL80211_IFTYPE_P2P_DEVICE) {
4524 return linux_set_iface_flags(bss->drv->global->ioctl_sock,
4525 bss->ifname, up);
4526 }
4527
4528 /* P2P Device has start/stop which is equivalent */
4529 return nl80211_set_p2pdev(bss, up);
4530 }
4531
4532
4533 static int
4534 wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv,
4535 const u8 *set_addr, int first)
4536 {
4537 struct i802_bss *bss = drv->first_bss;
4538 int send_rfkill_event = 0;
4539 enum nl80211_iftype nlmode;
4540
4541 drv->ifindex = if_nametoindex(bss->ifname);
4542 bss->ifindex = drv->ifindex;
4543 bss->wdev_id = drv->global->if_add_wdevid;
4544 bss->wdev_id_set = drv->global->if_add_wdevid_set;
4545
4546 bss->if_dynamic = drv->ifindex == drv->global->if_add_ifindex;
4547 bss->if_dynamic = bss->if_dynamic || drv->global->if_add_wdevid_set;
4548 drv->global->if_add_wdevid_set = 0;
4549
4550 if (wpa_driver_nl80211_capa(drv))
4551 return -1;
4552
4553 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s",
4554 bss->ifname, drv->phyname);
4555
4556 if (set_addr &&
4557 (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0) ||
4558 linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
4559 set_addr)))
4560 return -1;
4561
4562 if (first && nl80211_get_ifmode(bss) == NL80211_IFTYPE_AP)
4563 drv->start_mode_ap = 1;
4564
4565 if (drv->hostapd)
4566 nlmode = NL80211_IFTYPE_AP;
4567 else if (bss->if_dynamic)
4568 nlmode = nl80211_get_ifmode(bss);
4569 else
4570 nlmode = NL80211_IFTYPE_STATION;
4571
4572 if (wpa_driver_nl80211_set_mode(bss, nlmode) < 0) {
4573 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver mode");
4574 return -1;
4575 }
4576
4577 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) {
4578 int ret = nl80211_set_p2pdev(bss, 1);
4579 if (ret < 0)
4580 wpa_printf(MSG_ERROR, "nl80211: Could not start P2P device");
4581 nl80211_get_macaddr(bss);
4582 return ret;
4583 }
4584
4585 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) {
4586 if (rfkill_is_blocked(drv->rfkill)) {
4587 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable "
4588 "interface '%s' due to rfkill",
4589 bss->ifname);
4590 drv->if_disabled = 1;
4591 send_rfkill_event = 1;
4592 } else {
4593 wpa_printf(MSG_ERROR, "nl80211: Could not set "
4594 "interface '%s' UP", bss->ifname);
4595 return -1;
4596 }
4597 }
4598
4599 if (!drv->hostapd)
4600 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex,
4601 1, IF_OPER_DORMANT);
4602
4603 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
4604 bss->addr))
4605 return -1;
4606
4607 if (send_rfkill_event) {
4608 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill,
4609 drv, drv->ctx);
4610 }
4611
4612 return 0;
4613 }
4614
4615
4616 static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv)
4617 {
4618 struct nl_msg *msg;
4619
4620 msg = nlmsg_alloc();
4621 if (!msg)
4622 return -ENOMEM;
4623
4624 wpa_printf(MSG_DEBUG, "nl80211: Remove beacon (ifindex=%d)",
4625 drv->ifindex);
4626 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON);
4627 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4628
4629 return send_and_recv_msgs(drv, msg, NULL, NULL);
4630 nla_put_failure:
4631 nlmsg_free(msg);
4632 return -ENOBUFS;
4633 }
4634
4635
4636 /**
4637 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface
4638 * @bss: Pointer to private nl80211 data from wpa_driver_nl80211_init()
4639 *
4640 * Shut down driver interface and processing of driver events. Free
4641 * private data buffer if one was allocated in wpa_driver_nl80211_init().
4642 */
4643 static void wpa_driver_nl80211_deinit(struct i802_bss *bss)
4644 {
4645 struct wpa_driver_nl80211_data *drv = bss->drv;
4646
4647 bss->in_deinit = 1;
4648 if (drv->data_tx_status)
4649 eloop_unregister_read_sock(drv->eapol_tx_sock);
4650 if (drv->eapol_tx_sock >= 0)
4651 close(drv->eapol_tx_sock);
4652
4653 if (bss->nl_preq)
4654 wpa_driver_nl80211_probe_req_report(bss, 0);
4655 if (bss->added_if_into_bridge) {
4656 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname,
4657 bss->ifname) < 0)
4658 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
4659 "interface %s from bridge %s: %s",
4660 bss->ifname, bss->brname, strerror(errno));
4661 }
4662 if (bss->added_bridge) {
4663 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0)
4664 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
4665 "bridge %s: %s",
4666 bss->brname, strerror(errno));
4667 }
4668
4669 nl80211_remove_monitor_interface(drv);
4670
4671 if (is_ap_interface(drv->nlmode))
4672 wpa_driver_nl80211_del_beacon(drv);
4673
4674 if (drv->eapol_sock >= 0) {
4675 eloop_unregister_read_sock(drv->eapol_sock);
4676 close(drv->eapol_sock);
4677 }
4678
4679 if (drv->if_indices != drv->default_if_indices)
4680 os_free(drv->if_indices);
4681
4682 if (drv->disabled_11b_rates)
4683 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
4684
4685 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0,
4686 IF_OPER_UP);
4687 rfkill_deinit(drv->rfkill);
4688
4689 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
4690
4691 if (!drv->start_iface_up)
4692 (void) i802_set_iface_flags(bss, 0);
4693 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) {
4694 if (!drv->hostapd || !drv->start_mode_ap)
4695 wpa_driver_nl80211_set_mode(bss,
4696 NL80211_IFTYPE_STATION);
4697 nl80211_mgmt_unsubscribe(bss, "deinit");
4698 } else {
4699 nl80211_mgmt_unsubscribe(bss, "deinit");
4700 nl80211_del_p2pdev(bss);
4701 }
4702 nl_cb_put(drv->nl_cb);
4703
4704 nl80211_destroy_bss(drv->first_bss);
4705
4706 os_free(drv->filter_ssids);
4707
4708 os_free(drv->auth_ie);
4709
4710 if (drv->in_interface_list)
4711 dl_list_del(&drv->list);
4712
4713 os_free(drv->extended_capa);
4714 os_free(drv->extended_capa_mask);
4715 os_free(drv->first_bss);
4716 os_free(drv);
4717 }
4718
4719
4720 /**
4721 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion
4722 * @eloop_ctx: Driver private data
4723 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init()
4724 *
4725 * This function can be used as registered timeout when starting a scan to
4726 * generate a scan completed event if the driver does not report this.
4727 */
4728 static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx)
4729 {
4730 struct wpa_driver_nl80211_data *drv = eloop_ctx;
4731 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) {
4732 wpa_driver_nl80211_set_mode(drv->first_bss,
4733 drv->ap_scan_as_station);
4734 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
4735 }
4736 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results");
4737 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL);
4738 }
4739
4740
4741 static struct nl_msg *
4742 nl80211_scan_common(struct wpa_driver_nl80211_data *drv, u8 cmd,
4743 struct wpa_driver_scan_params *params, u64 *wdev_id)
4744 {
4745 struct nl_msg *msg;
4746 size_t i;
4747
4748 msg = nlmsg_alloc();
4749 if (!msg)
4750 return NULL;
4751
4752 nl80211_cmd(drv, msg, 0, cmd);
4753
4754 if (!wdev_id)
4755 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4756 else
4757 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, *wdev_id);
4758
4759 if (params->num_ssids) {
4760 struct nlattr *ssids;
4761
4762 ssids = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
4763 if (ssids == NULL)
4764 goto fail;
4765 for (i = 0; i < params->num_ssids; i++) {
4766 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID",
4767 params->ssids[i].ssid,
4768 params->ssids[i].ssid_len);
4769 if (nla_put(msg, i + 1, params->ssids[i].ssid_len,
4770 params->ssids[i].ssid) < 0)
4771 goto fail;
4772 }
4773 nla_nest_end(msg, ssids);
4774 }
4775
4776 if (params->extra_ies) {
4777 wpa_hexdump(MSG_MSGDUMP, "nl80211: Scan extra IEs",
4778 params->extra_ies, params->extra_ies_len);
4779 if (nla_put(msg, NL80211_ATTR_IE, params->extra_ies_len,
4780 params->extra_ies) < 0)
4781 goto fail;
4782 }
4783
4784 if (params->freqs) {
4785 struct nlattr *freqs;
4786 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
4787 if (freqs == NULL)
4788 goto fail;
4789 for (i = 0; params->freqs[i]; i++) {
4790 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u "
4791 "MHz", params->freqs[i]);
4792 if (nla_put_u32(msg, i + 1, params->freqs[i]) < 0)
4793 goto fail;
4794 }
4795 nla_nest_end(msg, freqs);
4796 }
4797
4798 os_free(drv->filter_ssids);
4799 drv->filter_ssids = params->filter_ssids;
4800 params->filter_ssids = NULL;
4801 drv->num_filter_ssids = params->num_filter_ssids;
4802
4803 if (params->only_new_results) {
4804 wpa_printf(MSG_DEBUG, "nl80211: Add NL80211_SCAN_FLAG_FLUSH");
4805 NLA_PUT_U32(msg, NL80211_ATTR_SCAN_FLAGS,
4806 NL80211_SCAN_FLAG_FLUSH);
4807 }
4808
4809 return msg;
4810
4811 fail:
4812 nla_put_failure:
4813 nlmsg_free(msg);
4814 return NULL;
4815 }
4816
4817
4818 /**
4819 * wpa_driver_nl80211_scan - Request the driver to initiate scan
4820 * @bss: Pointer to private driver data from wpa_driver_nl80211_init()
4821 * @params: Scan parameters
4822 * Returns: 0 on success, -1 on failure
4823 */
4824 static int wpa_driver_nl80211_scan(struct i802_bss *bss,
4825 struct wpa_driver_scan_params *params)
4826 {
4827 struct wpa_driver_nl80211_data *drv = bss->drv;
4828 int ret = -1, timeout;
4829 struct nl_msg *msg = NULL;
4830
4831 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: scan request");
4832 drv->scan_for_auth = 0;
4833
4834 msg = nl80211_scan_common(drv, NL80211_CMD_TRIGGER_SCAN, params,
4835 bss->wdev_id_set ? &bss->wdev_id : NULL);
4836 if (!msg)
4837 return -1;
4838
4839 if (params->p2p_probe) {
4840 struct nlattr *rates;
4841
4842 wpa_printf(MSG_DEBUG, "nl80211: P2P probe - mask SuppRates");
4843
4844 rates = nla_nest_start(msg, NL80211_ATTR_SCAN_SUPP_RATES);
4845 if (rates == NULL)
4846 goto nla_put_failure;
4847
4848 /*
4849 * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates
4850 * by masking out everything else apart from the OFDM rates 6,
4851 * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz
4852 * rates are left enabled.
4853 */
4854 NLA_PUT(msg, NL80211_BAND_2GHZ, 8,
4855 "\x0c\x12\x18\x24\x30\x48\x60\x6c");
4856 nla_nest_end(msg, rates);
4857
4858 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE);
4859 }
4860
4861 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4862 msg = NULL;
4863 if (ret) {
4864 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d "
4865 "(%s)", ret, strerror(-ret));
4866 if (drv->hostapd && is_ap_interface(drv->nlmode)) {
4867 /*
4868 * mac80211 does not allow scan requests in AP mode, so
4869 * try to do this in station mode.
4870 */
4871 if (wpa_driver_nl80211_set_mode(
4872 bss, NL80211_IFTYPE_STATION))
4873 goto nla_put_failure;
4874
4875 if (wpa_driver_nl80211_scan(bss, params)) {
4876 wpa_driver_nl80211_set_mode(bss, drv->nlmode);
4877 goto nla_put_failure;
4878 }
4879
4880 /* Restore AP mode when processing scan results */
4881 drv->ap_scan_as_station = drv->nlmode;
4882 ret = 0;
4883 } else
4884 goto nla_put_failure;
4885 }
4886
4887 drv->scan_state = SCAN_REQUESTED;
4888 /* Not all drivers generate "scan completed" wireless event, so try to
4889 * read results after a timeout. */
4890 timeout = 10;
4891 if (drv->scan_complete_events) {
4892 /*
4893 * The driver seems to deliver events to notify when scan is
4894 * complete, so use longer timeout to avoid race conditions
4895 * with scanning and following association request.
4896 */
4897 timeout = 30;
4898 }
4899 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d "
4900 "seconds", ret, timeout);
4901 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
4902 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout,
4903 drv, drv->ctx);
4904
4905 nla_put_failure:
4906 nlmsg_free(msg);
4907 return ret;
4908 }
4909
4910
4911 /**
4912 * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan
4913 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
4914 * @params: Scan parameters
4915 * @interval: Interval between scan cycles in milliseconds
4916 * Returns: 0 on success, -1 on failure or if not supported
4917 */
4918 static int wpa_driver_nl80211_sched_scan(void *priv,
4919 struct wpa_driver_scan_params *params,
4920 u32 interval)
4921 {
4922 struct i802_bss *bss = priv;
4923 struct wpa_driver_nl80211_data *drv = bss->drv;
4924 int ret = -1;
4925 struct nl_msg *msg;
4926 size_t i;
4927
4928 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: sched_scan request");
4929
4930 #ifdef ANDROID
4931 if (!drv->capa.sched_scan_supported)
4932 return android_pno_start(bss, params);
4933 #endif /* ANDROID */
4934
4935 msg = nl80211_scan_common(drv, NL80211_CMD_START_SCHED_SCAN, params,
4936 bss->wdev_id_set ? &bss->wdev_id : NULL);
4937 if (!msg)
4938 goto nla_put_failure;
4939
4940 NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval);
4941
4942 if ((drv->num_filter_ssids &&
4943 (int) drv->num_filter_ssids <= drv->capa.max_match_sets) ||
4944 params->filter_rssi) {
4945 struct nlattr *match_sets;
4946 match_sets = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
4947 if (match_sets == NULL)
4948 goto nla_put_failure;
4949
4950 for (i = 0; i < drv->num_filter_ssids; i++) {
4951 struct nlattr *match_set_ssid;
4952 wpa_hexdump_ascii(MSG_MSGDUMP,
4953 "nl80211: Sched scan filter SSID",
4954 drv->filter_ssids[i].ssid,
4955 drv->filter_ssids[i].ssid_len);
4956
4957 match_set_ssid = nla_nest_start(msg, i + 1);
4958 if (match_set_ssid == NULL)
4959 goto nla_put_failure;
4960 NLA_PUT(msg, NL80211_ATTR_SCHED_SCAN_MATCH_SSID,
4961 drv->filter_ssids[i].ssid_len,
4962 drv->filter_ssids[i].ssid);
4963
4964 nla_nest_end(msg, match_set_ssid);
4965 }
4966
4967 if (params->filter_rssi) {
4968 struct nlattr *match_set_rssi;
4969 match_set_rssi = nla_nest_start(msg, 0);
4970 if (match_set_rssi == NULL)
4971 goto nla_put_failure;
4972 NLA_PUT_U32(msg, NL80211_SCHED_SCAN_MATCH_ATTR_RSSI,
4973 params->filter_rssi);
4974 wpa_printf(MSG_MSGDUMP,
4975 "nl80211: Sched scan RSSI filter %d dBm",
4976 params->filter_rssi);
4977 nla_nest_end(msg, match_set_rssi);
4978 }
4979
4980 nla_nest_end(msg, match_sets);
4981 }
4982
4983 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4984
4985 /* TODO: if we get an error here, we should fall back to normal scan */
4986
4987 msg = NULL;
4988 if (ret) {
4989 wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: "
4990 "ret=%d (%s)", ret, strerror(-ret));
4991 goto nla_put_failure;
4992 }
4993
4994 wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - "
4995 "scan interval %d msec", ret, interval);
4996
4997 nla_put_failure:
4998 nlmsg_free(msg);
4999 return ret;
5000 }
5001
5002
5003 /**
5004 * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan
5005 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
5006 * Returns: 0 on success, -1 on failure or if not supported
5007 */
5008 static int wpa_driver_nl80211_stop_sched_scan(void *priv)
5009 {
5010 struct i802_bss *bss = priv;
5011 struct wpa_driver_nl80211_data *drv = bss->drv;
5012 int ret = 0;
5013 struct nl_msg *msg;
5014
5015 #ifdef ANDROID
5016 if (!drv->capa.sched_scan_supported)
5017 return android_pno_stop(bss);
5018 #endif /* ANDROID */
5019
5020 msg = nlmsg_alloc();
5021 if (!msg)
5022 return -1;
5023
5024 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN);
5025
5026 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5027
5028 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5029 msg = NULL;
5030 if (ret) {
5031 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: "
5032 "ret=%d (%s)", ret, strerror(-ret));
5033 goto nla_put_failure;
5034 }
5035
5036 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret);
5037
5038 nla_put_failure:
5039 nlmsg_free(msg);
5040 return ret;
5041 }
5042
5043
5044 static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie)
5045 {
5046 const u8 *end, *pos;
5047
5048 if (ies == NULL)
5049 return NULL;
5050
5051 pos = ies;
5052 end = ies + ies_len;
5053
5054 while (pos + 1 < end) {
5055 if (pos + 2 + pos[1] > end)
5056 break;
5057 if (pos[0] == ie)
5058 return pos;
5059 pos += 2 + pos[1];
5060 }
5061
5062 return NULL;
5063 }
5064
5065
5066 static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv,
5067 const u8 *ie, size_t ie_len)
5068 {
5069 const u8 *ssid;
5070 size_t i;
5071
5072 if (drv->filter_ssids == NULL)
5073 return 0;
5074
5075 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID);
5076 if (ssid == NULL)
5077 return 1;
5078
5079 for (i = 0; i < drv->num_filter_ssids; i++) {
5080 if (ssid[1] == drv->filter_ssids[i].ssid_len &&
5081 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) ==
5082 0)
5083 return 0;
5084 }
5085
5086 return 1;
5087 }
5088
5089
5090 static int bss_info_handler(struct nl_msg *msg, void *arg)
5091 {
5092 struct nlattr *tb[NL80211_ATTR_MAX + 1];
5093 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
5094 struct nlattr *bss[NL80211_BSS_MAX + 1];
5095 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
5096 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC },
5097 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 },
5098 [NL80211_BSS_TSF] = { .type = NLA_U64 },
5099 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 },
5100 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 },
5101 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC },
5102 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 },
5103 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 },
5104 [NL80211_BSS_STATUS] = { .type = NLA_U32 },
5105 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 },
5106 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC },
5107 };
5108 struct nl80211_bss_info_arg *_arg = arg;
5109 struct wpa_scan_results *res = _arg->res;
5110 struct wpa_scan_res **tmp;
5111 struct wpa_scan_res *r;
5112 const u8 *ie, *beacon_ie;
5113 size_t ie_len, beacon_ie_len;
5114 u8 *pos;
5115 size_t i;
5116
5117 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
5118 genlmsg_attrlen(gnlh, 0), NULL);
5119 if (!tb[NL80211_ATTR_BSS])
5120 return NL_SKIP;
5121 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS],
5122 bss_policy))
5123 return NL_SKIP;
5124 if (bss[NL80211_BSS_STATUS]) {
5125 enum nl80211_bss_status status;
5126 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
5127 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
5128 bss[NL80211_BSS_FREQUENCY]) {
5129 _arg->assoc_freq =
5130 nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
5131 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz",
5132 _arg->assoc_freq);
5133 }
5134 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
5135 bss[NL80211_BSS_BSSID]) {
5136 os_memcpy(_arg->assoc_bssid,
5137 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN);
5138 wpa_printf(MSG_DEBUG, "nl80211: Associated with "
5139 MACSTR, MAC2STR(_arg->assoc_bssid));
5140 }
5141 }
5142 if (!res)
5143 return NL_SKIP;
5144 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) {
5145 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
5146 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
5147 } else {
5148 ie = NULL;
5149 ie_len = 0;
5150 }
5151 if (bss[NL80211_BSS_BEACON_IES]) {
5152 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]);
5153 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]);
5154 } else {
5155 beacon_ie = NULL;
5156 beacon_ie_len = 0;
5157 }
5158
5159 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie,
5160 ie ? ie_len : beacon_ie_len))
5161 return NL_SKIP;
5162
5163 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len);
5164 if (r == NULL)
5165 return NL_SKIP;
5166 if (bss[NL80211_BSS_BSSID])
5167 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]),
5168 ETH_ALEN);
5169 if (bss[NL80211_BSS_FREQUENCY])
5170 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
5171 if (bss[NL80211_BSS_BEACON_INTERVAL])
5172 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]);
5173 if (bss[NL80211_BSS_CAPABILITY])
5174 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]);
5175 r->flags |= WPA_SCAN_NOISE_INVALID;
5176 if (bss[NL80211_BSS_SIGNAL_MBM]) {
5177 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]);
5178 r->level /= 100; /* mBm to dBm */
5179 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID;
5180 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) {
5181 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]);
5182 r->flags |= WPA_SCAN_QUAL_INVALID;
5183 } else
5184 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID;
5185 if (bss[NL80211_BSS_TSF])
5186 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]);
5187 if (bss[NL80211_BSS_SEEN_MS_AGO])
5188 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]);
5189 r->ie_len = ie_len;
5190 pos = (u8 *) (r + 1);
5191 if (ie) {
5192 os_memcpy(pos, ie, ie_len);
5193 pos += ie_len;
5194 }
5195 r->beacon_ie_len = beacon_ie_len;
5196 if (beacon_ie)
5197 os_memcpy(pos, beacon_ie, beacon_ie_len);
5198
5199 if (bss[NL80211_BSS_STATUS]) {
5200 enum nl80211_bss_status status;
5201 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
5202 switch (status) {
5203 case NL80211_BSS_STATUS_AUTHENTICATED:
5204 r->flags |= WPA_SCAN_AUTHENTICATED;
5205 break;
5206 case NL80211_BSS_STATUS_ASSOCIATED:
5207 r->flags |= WPA_SCAN_ASSOCIATED;
5208 break;
5209 default:
5210 break;
5211 }
5212 }
5213
5214 /*
5215 * cfg80211 maintains separate BSS table entries for APs if the same
5216 * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does
5217 * not use frequency as a separate key in the BSS table, so filter out
5218 * duplicated entries. Prefer associated BSS entry in such a case in
5219 * order to get the correct frequency into the BSS table. Similarly,
5220 * prefer newer entries over older.
5221 */
5222 for (i = 0; i < res->num; i++) {
5223 const u8 *s1, *s2;
5224 if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0)
5225 continue;
5226
5227 s1 = nl80211_get_ie((u8 *) (res->res[i] + 1),
5228 res->res[i]->ie_len, WLAN_EID_SSID);
5229 s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID);
5230 if (s1 == NULL || s2 == NULL || s1[1] != s2[1] ||
5231 os_memcmp(s1, s2, 2 + s1[1]) != 0)
5232 continue;
5233
5234 /* Same BSSID,SSID was already included in scan results */
5235 wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result "
5236 "for " MACSTR, MAC2STR(r->bssid));
5237
5238 if (((r->flags & WPA_SCAN_ASSOCIATED) &&
5239 !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) ||
5240 r->age < res->res[i]->age) {
5241 os_free(res->res[i]);
5242 res->res[i] = r;
5243 } else
5244 os_free(r);
5245 return NL_SKIP;
5246 }
5247
5248 tmp = os_realloc_array(res->res, res->num + 1,
5249 sizeof(struct wpa_scan_res *));
5250 if (tmp == NULL) {
5251 os_free(r);
5252 return NL_SKIP;
5253 }
5254 tmp[res->num++] = r;
5255 res->res = tmp;
5256
5257 return NL_SKIP;
5258 }
5259
5260
5261 static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv,
5262 const u8 *addr)
5263 {
5264 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
5265 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state "
5266 "mismatch (" MACSTR ")", MAC2STR(addr));
5267 wpa_driver_nl80211_mlme(drv, addr,
5268 NL80211_CMD_DEAUTHENTICATE,
5269 WLAN_REASON_PREV_AUTH_NOT_VALID, 1);
5270 }
5271 }
5272
5273
5274 static void wpa_driver_nl80211_check_bss_status(
5275 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res)
5276 {
5277 size_t i;
5278
5279 for (i = 0; i < res->num; i++) {
5280 struct wpa_scan_res *r = res->res[i];
5281 if (r->flags & WPA_SCAN_AUTHENTICATED) {
5282 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
5283 "indicates BSS status with " MACSTR
5284 " as authenticated",
5285 MAC2STR(r->bssid));
5286 if (is_sta_interface(drv->nlmode) &&
5287 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 &&
5288 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) !=
5289 0) {
5290 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID"
5291 " in local state (auth=" MACSTR
5292 " assoc=" MACSTR ")",
5293 MAC2STR(drv->auth_bssid),
5294 MAC2STR(drv->bssid));
5295 clear_state_mismatch(drv, r->bssid);
5296 }
5297 }
5298
5299 if (r->flags & WPA_SCAN_ASSOCIATED) {
5300 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
5301 "indicate BSS status with " MACSTR
5302 " as associated",
5303 MAC2STR(r->bssid));
5304 if (is_sta_interface(drv->nlmode) &&
5305 !drv->associated) {
5306 wpa_printf(MSG_DEBUG, "nl80211: Local state "
5307 "(not associated) does not match "
5308 "with BSS state");
5309 clear_state_mismatch(drv, r->bssid);
5310 } else if (is_sta_interface(drv->nlmode) &&
5311 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) !=
5312 0) {
5313 wpa_printf(MSG_DEBUG, "nl80211: Local state "
5314 "(associated with " MACSTR ") does "
5315 "not match with BSS state",
5316 MAC2STR(drv->bssid));
5317 clear_state_mismatch(drv, r->bssid);
5318 clear_state_mismatch(drv, drv->bssid);
5319 }
5320 }
5321 }
5322 }
5323
5324
5325 static struct wpa_scan_results *
5326 nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv)
5327 {
5328 struct nl_msg *msg;
5329 struct wpa_scan_results *res;
5330 int ret;
5331 struct nl80211_bss_info_arg arg;
5332
5333 res = os_zalloc(sizeof(*res));
5334 if (res == NULL)
5335 return NULL;
5336 msg = nlmsg_alloc();
5337 if (!msg)
5338 goto nla_put_failure;
5339
5340 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
5341 if (nl80211_set_iface_id(msg, drv->first_bss) < 0)
5342 goto nla_put_failure;
5343
5344 arg.drv = drv;
5345 arg.res = res;
5346 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
5347 msg = NULL;
5348 if (ret == 0) {
5349 wpa_printf(MSG_DEBUG, "nl80211: Received scan results (%lu "
5350 "BSSes)", (unsigned long) res->num);
5351 nl80211_get_noise_for_scan_results(drv, res);
5352 return res;
5353 }
5354 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
5355 "(%s)", ret, strerror(-ret));
5356 nla_put_failure:
5357 nlmsg_free(msg);
5358 wpa_scan_results_free(res);
5359 return NULL;
5360 }
5361
5362
5363 /**
5364 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results
5365 * @priv: Pointer to private wext data from wpa_driver_nl80211_init()
5366 * Returns: Scan results on success, -1 on failure
5367 */
5368 static struct wpa_scan_results *
5369 wpa_driver_nl80211_get_scan_results(void *priv)
5370 {
5371 struct i802_bss *bss = priv;
5372 struct wpa_driver_nl80211_data *drv = bss->drv;
5373 struct wpa_scan_results *res;
5374
5375 res = nl80211_get_scan_results(drv);
5376 if (res)
5377 wpa_driver_nl80211_check_bss_status(drv, res);
5378 return res;
5379 }
5380
5381
5382 static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv)
5383 {
5384 struct wpa_scan_results *res;
5385 size_t i;
5386
5387 res = nl80211_get_scan_results(drv);
5388 if (res == NULL) {
5389 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results");
5390 return;
5391 }
5392
5393 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump");
5394 for (i = 0; i < res->num; i++) {
5395 struct wpa_scan_res *r = res->res[i];
5396 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s",
5397 (int) i, (int) res->num, MAC2STR(r->bssid),
5398 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "",
5399 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : "");
5400 }
5401
5402 wpa_scan_results_free(res);
5403 }
5404
5405
5406 static u32 wpa_alg_to_cipher_suite(enum wpa_alg alg, size_t key_len)
5407 {
5408 switch (alg) {
5409 case WPA_ALG_WEP:
5410 if (key_len == 5)
5411 return WLAN_CIPHER_SUITE_WEP40;
5412 return WLAN_CIPHER_SUITE_WEP104;
5413 case WPA_ALG_TKIP:
5414 return WLAN_CIPHER_SUITE_TKIP;
5415 case WPA_ALG_CCMP:
5416 return WLAN_CIPHER_SUITE_CCMP;
5417 case WPA_ALG_GCMP:
5418 return WLAN_CIPHER_SUITE_GCMP;
5419 case WPA_ALG_CCMP_256:
5420 return WLAN_CIPHER_SUITE_CCMP_256;
5421 case WPA_ALG_GCMP_256:
5422 return WLAN_CIPHER_SUITE_GCMP_256;
5423 case WPA_ALG_IGTK:
5424 return WLAN_CIPHER_SUITE_AES_CMAC;
5425 case WPA_ALG_BIP_GMAC_128:
5426 return WLAN_CIPHER_SUITE_BIP_GMAC_128;
5427 case WPA_ALG_BIP_GMAC_256:
5428 return WLAN_CIPHER_SUITE_BIP_GMAC_256;
5429 case WPA_ALG_BIP_CMAC_256:
5430 return WLAN_CIPHER_SUITE_BIP_CMAC_256;
5431 case WPA_ALG_SMS4:
5432 return WLAN_CIPHER_SUITE_SMS4;
5433 case WPA_ALG_KRK:
5434 return WLAN_CIPHER_SUITE_KRK;
5435 case WPA_ALG_NONE:
5436 case WPA_ALG_PMK:
5437 wpa_printf(MSG_ERROR, "nl80211: Unexpected encryption algorithm %d",
5438 alg);
5439 return 0;
5440 }
5441
5442 wpa_printf(MSG_ERROR, "nl80211: Unsupported encryption algorithm %d",
5443 alg);
5444 return 0;
5445 }
5446
5447
5448 static u32 wpa_cipher_to_cipher_suite(unsigned int cipher)
5449 {
5450 switch (cipher) {
5451 case WPA_CIPHER_CCMP_256:
5452 return WLAN_CIPHER_SUITE_CCMP_256;
5453 case WPA_CIPHER_GCMP_256:
5454 return WLAN_CIPHER_SUITE_GCMP_256;
5455 case WPA_CIPHER_CCMP:
5456 return WLAN_CIPHER_SUITE_CCMP;
5457 case WPA_CIPHER_GCMP:
5458 return WLAN_CIPHER_SUITE_GCMP;
5459 case WPA_CIPHER_TKIP:
5460 return WLAN_CIPHER_SUITE_TKIP;
5461 case WPA_CIPHER_WEP104:
5462 return WLAN_CIPHER_SUITE_WEP104;
5463 case WPA_CIPHER_WEP40:
5464 return WLAN_CIPHER_SUITE_WEP40;
5465 }
5466
5467 return 0;
5468 }
5469
5470
5471 static int wpa_cipher_to_cipher_suites(unsigned int ciphers, u32 suites[],
5472 int max_suites)
5473 {
5474 int num_suites = 0;
5475
5476 if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP_256)
5477 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP_256;
5478 if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP_256)
5479 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP_256;
5480 if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP)
5481 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP;
5482 if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP)
5483 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP;
5484 if (num_suites < max_suites && ciphers & WPA_CIPHER_TKIP)
5485 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP;
5486 if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP104)
5487 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104;
5488 if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP40)
5489 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40;
5490
5491 return num_suites;
5492 }
5493
5494
5495 static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss,
5496 enum wpa_alg alg, const u8 *addr,
5497 int key_idx, int set_tx,
5498 const u8 *seq, size_t seq_len,
5499 const u8 *key, size_t key_len)
5500 {
5501 struct wpa_driver_nl80211_data *drv = bss->drv;
5502 int ifindex;
5503 struct nl_msg *msg;
5504 int ret;
5505 int tdls = 0;
5506
5507 /* Ignore for P2P Device */
5508 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE)
5509 return 0;
5510
5511 ifindex = if_nametoindex(ifname);
5512 wpa_printf(MSG_DEBUG, "%s: ifindex=%d (%s) alg=%d addr=%p key_idx=%d "
5513 "set_tx=%d seq_len=%lu key_len=%lu",
5514 __func__, ifindex, ifname, alg, addr, key_idx, set_tx,
5515 (unsigned long) seq_len, (unsigned long) key_len);
5516 #ifdef CONFIG_TDLS
5517 if (key_idx == -1) {
5518 key_idx = 0;
5519 tdls = 1;
5520 }
5521 #endif /* CONFIG_TDLS */
5522
5523 msg = nlmsg_alloc();
5524 if (!msg)
5525 return -ENOMEM;
5526
5527 if (alg == WPA_ALG_NONE) {
5528 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY);
5529 } else {
5530 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY);
5531 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key);
5532 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
5533 wpa_alg_to_cipher_suite(alg, key_len));
5534 }
5535
5536 if (seq && seq_len)
5537 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq);
5538
5539 if (addr && !is_broadcast_ether_addr(addr)) {
5540 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr));
5541 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5542
5543 if (alg != WPA_ALG_WEP && key_idx && !set_tx) {
5544 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK");
5545 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE,
5546 NL80211_KEYTYPE_GROUP);
5547 }
5548 } else if (addr && is_broadcast_ether_addr(addr)) {
5549 struct nlattr *types;
5550
5551 wpa_printf(MSG_DEBUG, " broadcast key");
5552
5553 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES);
5554 if (!types)
5555 goto nla_put_failure;
5556 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
5557 nla_nest_end(msg, types);
5558 }
5559 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
5560 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
5561
5562 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5563 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE)
5564 ret = 0;
5565 if (ret)
5566 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)",
5567 ret, strerror(-ret));
5568
5569 /*
5570 * If we failed or don't need to set the default TX key (below),
5571 * we're done here.
5572 */
5573 if (ret || !set_tx || alg == WPA_ALG_NONE || tdls)
5574 return ret;
5575 if (is_ap_interface(drv->nlmode) && addr &&
5576 !is_broadcast_ether_addr(addr))
5577 return ret;
5578
5579 msg = nlmsg_alloc();
5580 if (!msg)
5581 return -ENOMEM;
5582
5583 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY);
5584 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
5585 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
5586 if (alg == WPA_ALG_IGTK)
5587 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT);
5588 else
5589 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
5590 if (addr && is_broadcast_ether_addr(addr)) {
5591 struct nlattr *types;
5592
5593 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES);
5594 if (!types)
5595 goto nla_put_failure;
5596 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
5597 nla_nest_end(msg, types);
5598 } else if (addr) {
5599 struct nlattr *types;
5600
5601 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES);
5602 if (!types)
5603 goto nla_put_failure;
5604 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_UNICAST);
5605 nla_nest_end(msg, types);
5606 }
5607
5608 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5609 if (ret == -ENOENT)
5610 ret = 0;
5611 if (ret)
5612 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; "
5613 "err=%d %s)", ret, strerror(-ret));
5614 return ret;
5615
5616 nla_put_failure:
5617 nlmsg_free(msg);
5618 return -ENOBUFS;
5619 }
5620
5621
5622 static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg,
5623 int key_idx, int defkey,
5624 const u8 *seq, size_t seq_len,
5625 const u8 *key, size_t key_len)
5626 {
5627 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY);
5628 if (!key_attr)
5629 return -1;
5630
5631 if (defkey && alg == WPA_ALG_IGTK)
5632 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT);
5633 else if (defkey)
5634 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
5635
5636 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx);
5637
5638 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
5639 wpa_alg_to_cipher_suite(alg, key_len));
5640
5641 if (seq && seq_len)
5642 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq);
5643
5644 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key);
5645
5646 nla_nest_end(msg, key_attr);
5647
5648 return 0;
5649 nla_put_failure:
5650 return -1;
5651 }
5652
5653
5654 static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params,
5655 struct nl_msg *msg)
5656 {
5657 int i, privacy = 0;
5658 struct nlattr *nl_keys, *nl_key;
5659
5660 for (i = 0; i < 4; i++) {
5661 if (!params->wep_key[i])
5662 continue;
5663 privacy = 1;
5664 break;
5665 }
5666 if (params->wps == WPS_MODE_PRIVACY)
5667 privacy = 1;
5668 if (params->pairwise_suite &&
5669 params->pairwise_suite != WPA_CIPHER_NONE)
5670 privacy = 1;
5671
5672 if (!privacy)
5673 return 0;
5674
5675 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
5676
5677 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS);
5678 if (!nl_keys)
5679 goto nla_put_failure;
5680
5681 for (i = 0; i < 4; i++) {
5682 if (!params->wep_key[i])
5683 continue;
5684
5685 nl_key = nla_nest_start(msg, i);
5686 if (!nl_key)
5687 goto nla_put_failure;
5688
5689 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i],
5690 params->wep_key[i]);
5691 if (params->wep_key_len[i] == 5)
5692 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
5693 WLAN_CIPHER_SUITE_WEP40);
5694 else
5695 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
5696 WLAN_CIPHER_SUITE_WEP104);
5697
5698 NLA_PUT_U8(msg, NL80211_KEY_IDX, i);
5699
5700 if (i == params->wep_tx_keyidx)
5701 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
5702
5703 nla_nest_end(msg, nl_key);
5704 }
5705 nla_nest_end(msg, nl_keys);
5706
5707 return 0;
5708
5709 nla_put_failure:
5710 return -ENOBUFS;
5711 }
5712
5713
5714 static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
5715 const u8 *addr, int cmd, u16 reason_code,
5716 int local_state_change)
5717 {
5718 int ret = -1;
5719 struct nl_msg *msg;
5720
5721 msg = nlmsg_alloc();
5722 if (!msg)
5723 return -1;
5724
5725 nl80211_cmd(drv, msg, 0, cmd);
5726
5727 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5728 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code);
5729 if (addr)
5730 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5731 if (local_state_change)
5732 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
5733
5734 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5735 msg = NULL;
5736 if (ret) {
5737 wpa_dbg(drv->ctx, MSG_DEBUG,
5738 "nl80211: MLME command failed: reason=%u ret=%d (%s)",
5739 reason_code, ret, strerror(-ret));
5740 goto nla_put_failure;
5741 }
5742 ret = 0;
5743
5744 nla_put_failure:
5745 nlmsg_free(msg);
5746 return ret;
5747 }
5748
5749
5750 static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv,
5751 int reason_code)
5752 {
5753 int ret;
5754
5755 wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code);
5756 nl80211_mark_disconnected(drv);
5757 /* Disconnect command doesn't need BSSID - it uses cached value */
5758 ret = wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT,
5759 reason_code, 0);
5760 /*
5761 * For locally generated disconnect, supplicant already generates a
5762 * DEAUTH event, so ignore the event from NL80211.
5763 */
5764 drv->ignore_next_local_disconnect = ret == 0;
5765
5766 return ret;
5767 }
5768
5769
5770 static int wpa_driver_nl80211_deauthenticate(struct i802_bss *bss,
5771 const u8 *addr, int reason_code)
5772 {
5773 struct wpa_driver_nl80211_data *drv = bss->drv;
5774 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
5775 return wpa_driver_nl80211_disconnect(drv, reason_code);
5776 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)",
5777 __func__, MAC2STR(addr), reason_code);
5778 nl80211_mark_disconnected(drv);
5779 if (drv->nlmode == NL80211_IFTYPE_ADHOC)
5780 return nl80211_leave_ibss(drv);
5781 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE,
5782 reason_code, 0);
5783 }
5784
5785
5786 static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv,
5787 struct wpa_driver_auth_params *params)
5788 {
5789 int i;
5790
5791 drv->auth_freq = params->freq;
5792 drv->auth_alg = params->auth_alg;
5793 drv->auth_wep_tx_keyidx = params->wep_tx_keyidx;
5794 drv->auth_local_state_change = params->local_state_change;
5795 drv->auth_p2p = params->p2p;
5796
5797 if (params->bssid)
5798 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN);
5799 else
5800 os_memset(drv->auth_bssid_, 0, ETH_ALEN);
5801
5802 if (params->ssid) {
5803 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len);
5804 drv->auth_ssid_len = params->ssid_len;
5805 } else
5806 drv->auth_ssid_len = 0;
5807
5808
5809 os_free(drv->auth_ie);
5810 drv->auth_ie = NULL;
5811 drv->auth_ie_len = 0;
5812 if (params->ie) {
5813 drv->auth_ie = os_malloc(params->ie_len);
5814 if (drv->auth_ie) {
5815 os_memcpy(drv->auth_ie, params->ie, params->ie_len);
5816 drv->auth_ie_len = params->ie_len;
5817 }
5818 }
5819
5820 for (i = 0; i < 4; i++) {
5821 if (params->wep_key[i] && params->wep_key_len[i] &&
5822 params->wep_key_len[i] <= 16) {
5823 os_memcpy(drv->auth_wep_key[i], params->wep_key[i],
5824 params->wep_key_len[i]);
5825 drv->auth_wep_key_len[i] = params->wep_key_len[i];
5826 } else
5827 drv->auth_wep_key_len[i] = 0;
5828 }
5829 }
5830
5831
5832 static int wpa_driver_nl80211_authenticate(
5833 struct i802_bss *bss, struct wpa_driver_auth_params *params)
5834 {
5835 struct wpa_driver_nl80211_data *drv = bss->drv;
5836 int ret = -1, i;
5837 struct nl_msg *msg;
5838 enum nl80211_auth_type type;
5839 enum nl80211_iftype nlmode;
5840 int count = 0;
5841 int is_retry;
5842
5843 is_retry = drv->retry_auth;
5844 drv->retry_auth = 0;
5845
5846 nl80211_mark_disconnected(drv);
5847 os_memset(drv->auth_bssid, 0, ETH_ALEN);
5848 if (params->bssid)
5849 os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN);
5850 else
5851 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN);
5852 /* FIX: IBSS mode */
5853 nlmode = params->p2p ?
5854 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
5855 if (drv->nlmode != nlmode &&
5856 wpa_driver_nl80211_set_mode(bss, nlmode) < 0)
5857 return -1;
5858
5859 retry:
5860 msg = nlmsg_alloc();
5861 if (!msg)
5862 return -1;
5863
5864 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)",
5865 drv->ifindex);
5866
5867 nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE);
5868
5869 for (i = 0; i < 4; i++) {
5870 if (!params->wep_key[i])
5871 continue;
5872 wpa_driver_nl80211_set_key(bss->ifname, bss, WPA_ALG_WEP,
5873 NULL, i,
5874 i == params->wep_tx_keyidx, NULL, 0,
5875 params->wep_key[i],
5876 params->wep_key_len[i]);
5877 if (params->wep_tx_keyidx != i)
5878 continue;
5879 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0,
5880 params->wep_key[i], params->wep_key_len[i])) {
5881 nlmsg_free(msg);
5882 return -1;
5883 }
5884 }
5885
5886 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5887 if (params->bssid) {
5888 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
5889 MAC2STR(params->bssid));
5890 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
5891 }
5892 if (params->freq) {
5893 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
5894 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
5895 }
5896 if (params->ssid) {
5897 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
5898 params->ssid, params->ssid_len);
5899 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
5900 params->ssid);
5901 }
5902 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len);
5903 if (params->ie)
5904 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie);
5905 if (params->sae_data) {
5906 wpa_hexdump(MSG_DEBUG, " * SAE data", params->sae_data,
5907 params->sae_data_len);
5908 NLA_PUT(msg, NL80211_ATTR_SAE_DATA, params->sae_data_len,
5909 params->sae_data);
5910 }
5911 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
5912 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
5913 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
5914 type = NL80211_AUTHTYPE_SHARED_KEY;
5915 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
5916 type = NL80211_AUTHTYPE_NETWORK_EAP;
5917 else if (params->auth_alg & WPA_AUTH_ALG_FT)
5918 type = NL80211_AUTHTYPE_FT;
5919 else if (params->auth_alg & WPA_AUTH_ALG_SAE)
5920 type = NL80211_AUTHTYPE_SAE;
5921 else
5922 goto nla_put_failure;
5923 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
5924 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
5925 if (params->local_state_change) {
5926 wpa_printf(MSG_DEBUG, " * Local state change only");
5927 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
5928 }
5929
5930 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5931 msg = NULL;
5932 if (ret) {
5933 wpa_dbg(drv->ctx, MSG_DEBUG,
5934 "nl80211: MLME command failed (auth): ret=%d (%s)",
5935 ret, strerror(-ret));
5936 count++;
5937 if (ret == -EALREADY && count == 1 && params->bssid &&
5938 !params->local_state_change) {
5939 /*
5940 * mac80211 does not currently accept new
5941 * authentication if we are already authenticated. As a
5942 * workaround, force deauthentication and try again.
5943 */
5944 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication "
5945 "after forced deauthentication");
5946 wpa_driver_nl80211_deauthenticate(
5947 bss, params->bssid,
5948 WLAN_REASON_PREV_AUTH_NOT_VALID);
5949 nlmsg_free(msg);
5950 goto retry;
5951 }
5952
5953 if (ret == -ENOENT && params->freq && !is_retry) {
5954 /*
5955 * cfg80211 has likely expired the BSS entry even
5956 * though it was previously available in our internal
5957 * BSS table. To recover quickly, start a single
5958 * channel scan on the specified channel.
5959 */
5960 struct wpa_driver_scan_params scan;
5961 int freqs[2];
5962
5963 os_memset(&scan, 0, sizeof(scan));
5964 scan.num_ssids = 1;
5965 if (params->ssid) {
5966 scan.ssids[0].ssid = params->ssid;
5967 scan.ssids[0].ssid_len = params->ssid_len;
5968 }
5969 freqs[0] = params->freq;
5970 freqs[1] = 0;
5971 scan.freqs = freqs;
5972 wpa_printf(MSG_DEBUG, "nl80211: Trigger single "
5973 "channel scan to refresh cfg80211 BSS "
5974 "entry");
5975 ret = wpa_driver_nl80211_scan(bss, &scan);
5976 if (ret == 0) {
5977 nl80211_copy_auth_params(drv, params);
5978 drv->scan_for_auth = 1;
5979 }
5980 } else if (is_retry) {
5981 /*
5982 * Need to indicate this with an event since the return
5983 * value from the retry is not delivered to core code.
5984 */
5985 union wpa_event_data event;
5986 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry "
5987 "failed");
5988 os_memset(&event, 0, sizeof(event));
5989 os_memcpy(event.timeout_event.addr, drv->auth_bssid_,
5990 ETH_ALEN);
5991 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT,
5992 &event);
5993 }
5994
5995 goto nla_put_failure;
5996 }
5997 ret = 0;
5998 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send "
5999 "successfully");
6000
6001 nla_put_failure:
6002 nlmsg_free(msg);
6003 return ret;
6004 }
6005
6006
6007 static int wpa_driver_nl80211_authenticate_retry(
6008 struct wpa_driver_nl80211_data *drv)
6009 {
6010 struct wpa_driver_auth_params params;
6011 struct i802_bss *bss = drv->first_bss;
6012 int i;
6013
6014 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again");
6015
6016 os_memset(&params, 0, sizeof(params));
6017 params.freq = drv->auth_freq;
6018 params.auth_alg = drv->auth_alg;
6019 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx;
6020 params.local_state_change = drv->auth_local_state_change;
6021 params.p2p = drv->auth_p2p;
6022
6023 if (!is_zero_ether_addr(drv->auth_bssid_))
6024 params.bssid = drv->auth_bssid_;
6025
6026 if (drv->auth_ssid_len) {
6027 params.ssid = drv->auth_ssid;
6028 params.ssid_len = drv->auth_ssid_len;
6029 }
6030
6031 params.ie = drv->auth_ie;
6032 params.ie_len = drv->auth_ie_len;
6033
6034 for (i = 0; i < 4; i++) {
6035 if (drv->auth_wep_key_len[i]) {
6036 params.wep_key[i] = drv->auth_wep_key[i];
6037 params.wep_key_len[i] = drv->auth_wep_key_len[i];
6038 }
6039 }
6040
6041 drv->retry_auth = 1;
6042 return wpa_driver_nl80211_authenticate(bss, &params);
6043 }
6044
6045
6046 struct phy_info_arg {
6047 u16 *num_modes;
6048 struct hostapd_hw_modes *modes;
6049 int last_mode, last_chan_idx;
6050 };
6051
6052 static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa,
6053 struct nlattr *ampdu_factor,
6054 struct nlattr *ampdu_density,
6055 struct nlattr *mcs_set)
6056 {
6057 if (capa)
6058 mode->ht_capab = nla_get_u16(capa);
6059
6060 if (ampdu_factor)
6061 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03;
6062
6063 if (ampdu_density)
6064 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2;
6065
6066 if (mcs_set && nla_len(mcs_set) >= 16) {
6067 u8 *mcs;
6068 mcs = nla_data(mcs_set);
6069 os_memcpy(mode->mcs_set, mcs, 16);
6070 }
6071 }
6072
6073
6074 static void phy_info_vht_capa(struct hostapd_hw_modes *mode,
6075 struct nlattr *capa,
6076 struct nlattr *mcs_set)
6077 {
6078 if (capa)
6079 mode->vht_capab = nla_get_u32(capa);
6080
6081 if (mcs_set && nla_len(mcs_set) >= 8) {
6082 u8 *mcs;
6083 mcs = nla_data(mcs_set);
6084 os_memcpy(mode->vht_mcs_set, mcs, 8);
6085 }
6086 }
6087
6088
6089 static void phy_info_freq(struct hostapd_hw_modes *mode,
6090 struct hostapd_channel_data *chan,
6091 struct nlattr *tb_freq[])
6092 {
6093 u8 channel;
6094 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
6095 chan->flag = 0;
6096 if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES)
6097 chan->chan = channel;
6098
6099 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
6100 chan->flag |= HOSTAPD_CHAN_DISABLED;
6101 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IR])
6102 chan->flag |= HOSTAPD_CHAN_PASSIVE_SCAN | HOSTAPD_CHAN_NO_IBSS;
6103 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
6104 chan->flag |= HOSTAPD_CHAN_RADAR;
6105
6106 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) {
6107 enum nl80211_dfs_state state =
6108 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]);
6109
6110 switch (state) {
6111 case NL80211_DFS_USABLE:
6112 chan->flag |= HOSTAPD_CHAN_DFS_USABLE;
6113 break;
6114 case NL80211_DFS_AVAILABLE:
6115 chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE;
6116 break;
6117 case NL80211_DFS_UNAVAILABLE:
6118 chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE;
6119 break;
6120 }
6121 }
6122 }
6123
6124
6125 static int phy_info_freqs(struct phy_info_arg *phy_info,
6126 struct hostapd_hw_modes *mode, struct nlattr *tb)
6127 {
6128 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
6129 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
6130 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
6131 [NL80211_FREQUENCY_ATTR_NO_IR] = { .type = NLA_FLAG },
6132 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
6133 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
6134 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 },
6135 };
6136 int new_channels = 0;
6137 struct hostapd_channel_data *channel;
6138 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
6139 struct nlattr *nl_freq;
6140 int rem_freq, idx;
6141
6142 if (tb == NULL)
6143 return NL_OK;
6144
6145 nla_for_each_nested(nl_freq, tb, rem_freq) {
6146 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX,
6147 nla_data(nl_freq), nla_len(nl_freq), freq_policy);
6148 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
6149 continue;
6150 new_channels++;
6151 }
6152
6153 channel = os_realloc_array(mode->channels,
6154 mode->num_channels + new_channels,
6155 sizeof(struct hostapd_channel_data));
6156 if (!channel)
6157 return NL_SKIP;
6158
6159 mode->channels = channel;
6160 mode->num_channels += new_channels;
6161
6162 idx = phy_info->last_chan_idx;
6163
6164 nla_for_each_nested(nl_freq, tb, rem_freq) {
6165 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX,
6166 nla_data(nl_freq), nla_len(nl_freq), freq_policy);
6167 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
6168 continue;
6169 phy_info_freq(mode, &mode->channels[idx], tb_freq);
6170 idx++;
6171 }
6172 phy_info->last_chan_idx = idx;
6173
6174 return NL_OK;
6175 }
6176
6177
6178 static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb)
6179 {
6180 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
6181 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
6182 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] =
6183 { .type = NLA_FLAG },
6184 };
6185 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
6186 struct nlattr *nl_rate;
6187 int rem_rate, idx;
6188
6189 if (tb == NULL)
6190 return NL_OK;
6191
6192 nla_for_each_nested(nl_rate, tb, rem_rate) {
6193 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX,
6194 nla_data(nl_rate), nla_len(nl_rate),
6195 rate_policy);
6196 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
6197 continue;
6198 mode->num_rates++;
6199 }
6200
6201 mode->rates = os_calloc(mode->num_rates, sizeof(int));
6202 if (!mode->rates)
6203 return NL_SKIP;
6204
6205 idx = 0;
6206
6207 nla_for_each_nested(nl_rate, tb, rem_rate) {
6208 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX,
6209 nla_data(nl_rate), nla_len(nl_rate),
6210 rate_policy);
6211 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
6212 continue;
6213 mode->rates[idx] = nla_get_u32(
6214 tb_rate[NL80211_BITRATE_ATTR_RATE]);
6215 idx++;
6216 }
6217
6218 return NL_OK;
6219 }
6220
6221
6222 static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band)
6223 {
6224 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
6225 struct hostapd_hw_modes *mode;
6226 int ret;
6227
6228 if (phy_info->last_mode != nl_band->nla_type) {
6229 mode = os_realloc_array(phy_info->modes,
6230 *phy_info->num_modes + 1,
6231 sizeof(*mode));
6232 if (!mode)
6233 return NL_SKIP;
6234 phy_info->modes = mode;
6235
6236 mode = &phy_info->modes[*(phy_info->num_modes)];
6237 os_memset(mode, 0, sizeof(*mode));
6238 mode->mode = NUM_HOSTAPD_MODES;
6239 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN |
6240 HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN;
6241
6242 /*
6243 * Unsupported VHT MCS stream is defined as value 3, so the VHT
6244 * MCS RX/TX map must be initialized with 0xffff to mark all 8
6245 * possible streams as unsupported. This will be overridden if
6246 * driver advertises VHT support.
6247 */
6248 mode->vht_mcs_set[0] = 0xff;
6249 mode->vht_mcs_set[1] = 0xff;
6250 mode->vht_mcs_set[4] = 0xff;
6251 mode->vht_mcs_set[5] = 0xff;
6252
6253 *(phy_info->num_modes) += 1;
6254 phy_info->last_mode = nl_band->nla_type;
6255 phy_info->last_chan_idx = 0;
6256 } else
6257 mode = &phy_info->modes[*(phy_info->num_modes) - 1];
6258
6259 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
6260 nla_len(nl_band), NULL);
6261
6262 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA],
6263 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR],
6264 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY],
6265 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]);
6266 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA],
6267 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]);
6268 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]);
6269 if (ret != NL_OK)
6270 return ret;
6271 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]);
6272 if (ret != NL_OK)
6273 return ret;
6274
6275 return NL_OK;
6276 }
6277
6278
6279 static int phy_info_handler(struct nl_msg *msg, void *arg)
6280 {
6281 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
6282 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
6283 struct phy_info_arg *phy_info = arg;
6284 struct nlattr *nl_band;
6285 int rem_band;
6286
6287 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
6288 genlmsg_attrlen(gnlh, 0), NULL);
6289
6290 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
6291 return NL_SKIP;
6292
6293 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band)
6294 {
6295 int res = phy_info_band(phy_info, nl_band);
6296 if (res != NL_OK)
6297 return res;
6298 }
6299
6300 return NL_SKIP;
6301 }
6302
6303
6304 static struct hostapd_hw_modes *
6305 wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes,
6306 u16 *num_modes)
6307 {
6308 u16 m;
6309 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
6310 int i, mode11g_idx = -1;
6311
6312 /* heuristic to set up modes */
6313 for (m = 0; m < *num_modes; m++) {
6314 if (!modes[m].num_channels)
6315 continue;
6316 if (modes[m].channels[0].freq < 4000) {
6317 modes[m].mode = HOSTAPD_MODE_IEEE80211B;
6318 for (i = 0; i < modes[m].num_rates; i++) {
6319 if (modes[m].rates[i] > 200) {
6320 modes[m].mode = HOSTAPD_MODE_IEEE80211G;
6321 break;
6322 }
6323 }
6324 } else if (modes[m].channels[0].freq > 50000)
6325 modes[m].mode = HOSTAPD_MODE_IEEE80211AD;
6326 else
6327 modes[m].mode = HOSTAPD_MODE_IEEE80211A;
6328 }
6329
6330 /* If only 802.11g mode is included, use it to construct matching
6331 * 802.11b mode data. */
6332
6333 for (m = 0; m < *num_modes; m++) {
6334 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
6335 return modes; /* 802.11b already included */
6336 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
6337 mode11g_idx = m;
6338 }
6339
6340 if (mode11g_idx < 0)
6341 return modes; /* 2.4 GHz band not supported at all */
6342
6343 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes));
6344 if (nmodes == NULL)
6345 return modes; /* Could not add 802.11b mode */
6346
6347 mode = &nmodes[*num_modes];
6348 os_memset(mode, 0, sizeof(*mode));
6349 (*num_modes)++;
6350 modes = nmodes;
6351
6352 mode->mode = HOSTAPD_MODE_IEEE80211B;
6353
6354 mode11g = &modes[mode11g_idx];
6355 mode->num_channels = mode11g->num_channels;
6356 mode->channels = os_malloc(mode11g->num_channels *
6357 sizeof(struct hostapd_channel_data));
6358 if (mode->channels == NULL) {
6359 (*num_modes)--;
6360 return modes; /* Could not add 802.11b mode */
6361 }
6362 os_memcpy(mode->channels, mode11g->channels,
6363 mode11g->num_channels * sizeof(struct hostapd_channel_data));
6364
6365 mode->num_rates = 0;
6366 mode->rates = os_malloc(4 * sizeof(int));
6367 if (mode->rates == NULL) {
6368 os_free(mode->channels);
6369 (*num_modes)--;
6370 return modes; /* Could not add 802.11b mode */
6371 }
6372
6373 for (i = 0; i < mode11g->num_rates; i++) {
6374 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 &&
6375 mode11g->rates[i] != 55 && mode11g->rates[i] != 110)
6376 continue;
6377 mode->rates[mode->num_rates] = mode11g->rates[i];
6378 mode->num_rates++;
6379 if (mode->num_rates == 4)
6380 break;
6381 }
6382
6383 if (mode->num_rates == 0) {
6384 os_free(mode->channels);
6385 os_free(mode->rates);
6386 (*num_modes)--;
6387 return modes; /* No 802.11b rates */
6388 }
6389
6390 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
6391 "information");
6392
6393 return modes;
6394 }
6395
6396
6397 static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start,
6398 int end)
6399 {
6400 int c;
6401
6402 for (c = 0; c < mode->num_channels; c++) {
6403 struct hostapd_channel_data *chan = &mode->channels[c];
6404 if (chan->freq - 10 >= start && chan->freq + 10 <= end)
6405 chan->flag |= HOSTAPD_CHAN_HT40;
6406 }
6407 }
6408
6409
6410 static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start,
6411 int end)
6412 {
6413 int c;
6414
6415 for (c = 0; c < mode->num_channels; c++) {
6416 struct hostapd_channel_data *chan = &mode->channels[c];
6417 if (!(chan->flag & HOSTAPD_CHAN_HT40))
6418 continue;
6419 if (chan->freq - 30 >= start && chan->freq - 10 <= end)
6420 chan->flag |= HOSTAPD_CHAN_HT40MINUS;
6421 if (chan->freq + 10 >= start && chan->freq + 30 <= end)
6422 chan->flag |= HOSTAPD_CHAN_HT40PLUS;
6423 }
6424 }
6425
6426
6427 static void nl80211_reg_rule_max_eirp(u32 start, u32 end, u32 max_eirp,
6428 struct phy_info_arg *results)
6429 {
6430 u16 m;
6431
6432 for (m = 0; m < *results->num_modes; m++) {
6433 int c;
6434 struct hostapd_hw_modes *mode = &results->modes[m];
6435
6436 for (c = 0; c < mode->num_channels; c++) {
6437 struct hostapd_channel_data *chan = &mode->channels[c];
6438 if ((u32) chan->freq - 10 >= start &&
6439 (u32) chan->freq + 10 <= end)
6440 chan->max_tx_power = max_eirp;
6441 }
6442 }
6443 }
6444
6445
6446 static void nl80211_reg_rule_ht40(u32 start, u32 end,
6447 struct phy_info_arg *results)
6448 {
6449 u16 m;
6450
6451 for (m = 0; m < *results->num_modes; m++) {
6452 if (!(results->modes[m].ht_capab &
6453 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
6454 continue;
6455 nl80211_set_ht40_mode(&results->modes[m], start, end);
6456 }
6457 }
6458
6459
6460 static void nl80211_reg_rule_sec(struct nlattr *tb[],
6461 struct phy_info_arg *results)
6462 {
6463 u32 start, end, max_bw;
6464 u16 m;
6465
6466 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
6467 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
6468 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
6469 return;
6470
6471 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
6472 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
6473 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
6474
6475 if (max_bw < 20)
6476 return;
6477
6478 for (m = 0; m < *results->num_modes; m++) {
6479 if (!(results->modes[m].ht_capab &
6480 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
6481 continue;
6482 nl80211_set_ht40_mode_sec(&results->modes[m], start, end);
6483 }
6484 }
6485
6486
6487 static void nl80211_set_vht_mode(struct hostapd_hw_modes *mode, int start,
6488 int end)
6489 {
6490 int c;
6491
6492 for (c = 0; c < mode->num_channels; c++) {
6493 struct hostapd_channel_data *chan = &mode->channels[c];
6494 if (chan->freq - 10 >= start && chan->freq + 70 <= end)
6495 chan->flag |= HOSTAPD_CHAN_VHT_10_70;
6496
6497 if (chan->freq - 30 >= start && chan->freq + 50 <= end)
6498 chan->flag |= HOSTAPD_CHAN_VHT_30_50;
6499
6500 if (chan->freq - 50 >= start && chan->freq + 30 <= end)
6501 chan->flag |= HOSTAPD_CHAN_VHT_50_30;
6502
6503 if (chan->freq - 70 >= start && chan->freq + 10 <= end)
6504 chan->flag |= HOSTAPD_CHAN_VHT_70_10;
6505 }
6506 }
6507
6508
6509 static void nl80211_reg_rule_vht(struct nlattr *tb[],
6510 struct phy_info_arg *results)
6511 {
6512 u32 start, end, max_bw;
6513 u16 m;
6514
6515 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
6516 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
6517 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
6518 return;
6519
6520 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
6521 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
6522 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
6523
6524 if (max_bw < 80)
6525 return;
6526
6527 for (m = 0; m < *results->num_modes; m++) {
6528 if (!(results->modes[m].ht_capab &
6529 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
6530 continue;
6531 /* TODO: use a real VHT support indication */
6532 if (!results->modes[m].vht_capab)
6533 continue;
6534
6535 nl80211_set_vht_mode(&results->modes[m], start, end);
6536 }
6537 }
6538
6539
6540 static int nl80211_get_reg(struct nl_msg *msg, void *arg)
6541 {
6542 struct phy_info_arg *results = arg;
6543 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
6544 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
6545 struct nlattr *nl_rule;
6546 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1];
6547 int rem_rule;
6548 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
6549 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
6550 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
6551 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
6552 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
6553 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
6554 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
6555 };
6556
6557 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
6558 genlmsg_attrlen(gnlh, 0), NULL);
6559 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] ||
6560 !tb_msg[NL80211_ATTR_REG_RULES]) {
6561 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information "
6562 "available");
6563 return NL_SKIP;
6564 }
6565
6566 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s",
6567 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]));
6568
6569 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
6570 {
6571 u32 start, end, max_eirp = 0, max_bw = 0;
6572 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
6573 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
6574 if (tb_rule[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
6575 tb_rule[NL80211_ATTR_FREQ_RANGE_END] == NULL)
6576 continue;
6577 start = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
6578 end = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
6579 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP])
6580 max_eirp = nla_get_u32(tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP]) / 100;
6581 if (tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW])
6582 max_bw = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
6583
6584 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz %u mBm",
6585 start, end, max_bw, max_eirp);
6586 if (max_bw >= 40)
6587 nl80211_reg_rule_ht40(start, end, results);
6588 if (tb_rule[NL80211_ATTR_POWER_RULE_MAX_EIRP])
6589 nl80211_reg_rule_max_eirp(start, end, max_eirp,
6590 results);
6591 }
6592
6593 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
6594 {
6595 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
6596 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
6597 nl80211_reg_rule_sec(tb_rule, results);
6598 }
6599
6600 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
6601 {
6602 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
6603 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
6604 nl80211_reg_rule_vht(tb_rule, results);
6605 }
6606
6607 return NL_SKIP;
6608 }
6609
6610
6611 static int nl80211_set_regulatory_flags(struct wpa_driver_nl80211_data *drv,
6612 struct phy_info_arg *results)
6613 {
6614 struct nl_msg *msg;
6615
6616 msg = nlmsg_alloc();
6617 if (!msg)
6618 return -ENOMEM;
6619
6620 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG);
6621 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results);
6622 }
6623
6624
6625 static struct hostapd_hw_modes *
6626 wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
6627 {
6628 u32 feat;
6629 struct i802_bss *bss = priv;
6630 struct wpa_driver_nl80211_data *drv = bss->drv;
6631 struct nl_msg *msg;
6632 struct phy_info_arg result = {
6633 .num_modes = num_modes,
6634 .modes = NULL,
6635 .last_mode = -1,
6636 };
6637
6638 *num_modes = 0;
6639 *flags = 0;
6640
6641 msg = nlmsg_alloc();
6642 if (!msg)
6643 return NULL;
6644
6645 feat = get_nl80211_protocol_features(drv);
6646 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)
6647 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY);
6648 else
6649 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY);
6650
6651 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP);
6652 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6653
6654 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) {
6655 nl80211_set_regulatory_flags(drv, &result);
6656 return wpa_driver_nl80211_postprocess_modes(result.modes,
6657 num_modes);
6658 }
6659 msg = NULL;
6660 nla_put_failure:
6661 nlmsg_free(msg);
6662 return NULL;
6663 }
6664
6665
6666 static int wpa_driver_nl80211_send_mntr(struct wpa_driver_nl80211_data *drv,
6667 const void *data, size_t len,
6668 int encrypt, int noack)
6669 {
6670 __u8 rtap_hdr[] = {
6671 0x00, 0x00, /* radiotap version */
6672 0x0e, 0x00, /* radiotap length */
6673 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */
6674 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */
6675 0x00, /* padding */
6676 0x00, 0x00, /* RX and TX flags to indicate that */
6677 0x00, 0x00, /* this is the injected frame directly */
6678 };
6679 struct iovec iov[2] = {
6680 {
6681 .iov_base = &rtap_hdr,
6682 .iov_len = sizeof(rtap_hdr),
6683 },
6684 {
6685 .iov_base = (void *) data,
6686 .iov_len = len,
6687 }
6688 };
6689 struct msghdr msg = {
6690 .msg_name = NULL,
6691 .msg_namelen = 0,
6692 .msg_iov = iov,
6693 .msg_iovlen = 2,
6694 .msg_control = NULL,
6695 .msg_controllen = 0,
6696 .msg_flags = 0,
6697 };
6698 int res;
6699 u16 txflags = 0;
6700
6701 if (encrypt)
6702 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP;
6703
6704 if (drv->monitor_sock < 0) {
6705 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available "
6706 "for %s", __func__);
6707 return -1;
6708 }
6709
6710 if (noack)
6711 txflags |= IEEE80211_RADIOTAP_F_TX_NOACK;
6712 WPA_PUT_LE16(&rtap_hdr[12], txflags);
6713
6714 res = sendmsg(drv->monitor_sock, &msg, 0);
6715 if (res < 0) {
6716 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno));
6717 return -1;
6718 }
6719 return 0;
6720 }
6721
6722
6723 static int wpa_driver_nl80211_send_frame(struct i802_bss *bss,
6724 const void *data, size_t len,
6725 int encrypt, int noack,
6726 unsigned int freq, int no_cck,
6727 int offchanok, unsigned int wait_time)
6728 {
6729 struct wpa_driver_nl80211_data *drv = bss->drv;
6730 u64 cookie;
6731 int res;
6732
6733 if (freq == 0) {
6734 wpa_printf(MSG_DEBUG, "nl80211: send_frame - Use bss->freq=%u",
6735 bss->freq);
6736 freq = bss->freq;
6737 }
6738
6739 if (drv->use_monitor) {
6740 wpa_printf(MSG_DEBUG, "nl80211: send_frame(freq=%u bss->freq=%u) -> send_mntr",
6741 freq, bss->freq);
6742 return wpa_driver_nl80211_send_mntr(drv, data, len,
6743 encrypt, noack);
6744 }
6745
6746 wpa_printf(MSG_DEBUG, "nl80211: send_frame -> send_frame_cmd");
6747 res = nl80211_send_frame_cmd(bss, freq, wait_time, data, len,
6748 &cookie, no_cck, noack, offchanok);
6749 if (res == 0 && !noack) {
6750 const struct ieee80211_mgmt *mgmt;
6751 u16 fc;
6752
6753 mgmt = (const struct ieee80211_mgmt *) data;
6754 fc = le_to_host16(mgmt->frame_control);
6755 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
6756 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_ACTION) {
6757 wpa_printf(MSG_MSGDUMP,
6758 "nl80211: Update send_action_cookie from 0x%llx to 0x%llx",
6759 (long long unsigned int)
6760 drv->send_action_cookie,
6761 (long long unsigned int) cookie);
6762 drv->send_action_cookie = cookie;
6763 }
6764 }
6765
6766 return res;
6767 }
6768
6769
6770 static int wpa_driver_nl80211_send_mlme(struct i802_bss *bss, const u8 *data,
6771 size_t data_len, int noack,
6772 unsigned int freq, int no_cck,
6773 int offchanok,
6774 unsigned int wait_time)
6775 {
6776 struct wpa_driver_nl80211_data *drv = bss->drv;
6777 struct ieee80211_mgmt *mgmt;
6778 int encrypt = 1;
6779 u16 fc;
6780
6781 mgmt = (struct ieee80211_mgmt *) data;
6782 fc = le_to_host16(mgmt->frame_control);
6783 wpa_printf(MSG_DEBUG, "nl80211: send_mlme - noack=%d freq=%u no_cck=%d offchanok=%d wait_time=%u fc=0x%x nlmode=%d",
6784 noack, freq, no_cck, offchanok, wait_time, fc, drv->nlmode);
6785
6786 if ((is_sta_interface(drv->nlmode) ||
6787 drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) &&
6788 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
6789 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) {
6790 /*
6791 * The use of last_mgmt_freq is a bit of a hack,
6792 * but it works due to the single-threaded nature
6793 * of wpa_supplicant.
6794 */
6795 if (freq == 0) {
6796 wpa_printf(MSG_DEBUG, "nl80211: Use last_mgmt_freq=%d",
6797 drv->last_mgmt_freq);
6798 freq = drv->last_mgmt_freq;
6799 }
6800 return nl80211_send_frame_cmd(bss, freq, 0,
6801 data, data_len, NULL, 1, noack,
6802 1);
6803 }
6804
6805 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) {
6806 if (freq == 0) {
6807 wpa_printf(MSG_DEBUG, "nl80211: Use bss->freq=%d",
6808 bss->freq);
6809 freq = bss->freq;
6810 }
6811 return nl80211_send_frame_cmd(bss, freq,
6812 (int) freq == bss->freq ? 0 :
6813 wait_time,
6814 data, data_len,
6815 &drv->send_action_cookie,
6816 no_cck, noack, offchanok);
6817 }
6818
6819 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
6820 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) {
6821 /*
6822 * Only one of the authentication frame types is encrypted.
6823 * In order for static WEP encryption to work properly (i.e.,
6824 * to not encrypt the frame), we need to tell mac80211 about
6825 * the frames that must not be encrypted.
6826 */
6827 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
6828 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction);
6829 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3)
6830 encrypt = 0;
6831 }
6832
6833 wpa_printf(MSG_DEBUG, "nl80211: send_mlme -> send_frame");
6834 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt,
6835 noack, freq, no_cck, offchanok,
6836 wait_time);
6837 }
6838
6839
6840 static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble,
6841 int slot, int ht_opmode, int ap_isolate,
6842 int *basic_rates)
6843 {
6844 struct wpa_driver_nl80211_data *drv = bss->drv;
6845 struct nl_msg *msg;
6846
6847 msg = nlmsg_alloc();
6848 if (!msg)
6849 return -ENOMEM;
6850
6851 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS);
6852
6853 if (cts >= 0)
6854 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts);
6855 if (preamble >= 0)
6856 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble);
6857 if (slot >= 0)
6858 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot);
6859 if (ht_opmode >= 0)
6860 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode);
6861 if (ap_isolate >= 0)
6862 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate);
6863
6864 if (basic_rates) {
6865 u8 rates[NL80211_MAX_SUPP_RATES];
6866 u8 rates_len = 0;
6867 int i;
6868
6869 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0;
6870 i++)
6871 rates[rates_len++] = basic_rates[i] / 5;
6872
6873 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates);
6874 }
6875
6876 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
6877
6878 return send_and_recv_msgs(drv, msg, NULL, NULL);
6879 nla_put_failure:
6880 nlmsg_free(msg);
6881 return -ENOBUFS;
6882 }
6883
6884
6885 static int wpa_driver_nl80211_set_acl(void *priv,
6886 struct hostapd_acl_params *params)
6887 {
6888 struct i802_bss *bss = priv;
6889 struct wpa_driver_nl80211_data *drv = bss->drv;
6890 struct nl_msg *msg;
6891 struct nlattr *acl;
6892 unsigned int i;
6893 int ret = 0;
6894
6895 if (!(drv->capa.max_acl_mac_addrs))
6896 return -ENOTSUP;
6897
6898 if (params->num_mac_acl > drv->capa.max_acl_mac_addrs)
6899 return -ENOTSUP;
6900
6901 msg = nlmsg_alloc();
6902 if (!msg)
6903 return -ENOMEM;
6904
6905 wpa_printf(MSG_DEBUG, "nl80211: Set %s ACL (num_mac_acl=%u)",
6906 params->acl_policy ? "Accept" : "Deny", params->num_mac_acl);
6907
6908 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_MAC_ACL);
6909
6910 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6911
6912 NLA_PUT_U32(msg, NL80211_ATTR_ACL_POLICY, params->acl_policy ?
6913 NL80211_ACL_POLICY_DENY_UNLESS_LISTED :
6914 NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED);
6915
6916 acl = nla_nest_start(msg, NL80211_ATTR_MAC_ADDRS);
6917 if (acl == NULL)
6918 goto nla_put_failure;
6919
6920 for (i = 0; i < params->num_mac_acl; i++)
6921 NLA_PUT(msg, i + 1, ETH_ALEN, params->mac_acl[i].addr);
6922
6923 nla_nest_end(msg, acl);
6924
6925 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6926 msg = NULL;
6927 if (ret) {
6928 wpa_printf(MSG_DEBUG, "nl80211: Failed to set MAC ACL: %d (%s)",
6929 ret, strerror(-ret));
6930 }
6931
6932 nla_put_failure:
6933 nlmsg_free(msg);
6934
6935 return ret;
6936 }
6937
6938
6939 static int wpa_driver_nl80211_set_ap(void *priv,
6940 struct wpa_driver_ap_params *params)
6941 {
6942 struct i802_bss *bss = priv;
6943 struct wpa_driver_nl80211_data *drv = bss->drv;
6944 struct nl_msg *msg;
6945 u8 cmd = NL80211_CMD_NEW_BEACON;
6946 int ret;
6947 int beacon_set;
6948 int ifindex = if_nametoindex(bss->ifname);
6949 int num_suites;
6950 u32 suites[10], suite;
6951 u32 ver;
6952
6953 beacon_set = bss->beacon_set;
6954
6955 msg = nlmsg_alloc();
6956 if (!msg)
6957 return -ENOMEM;
6958
6959 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)",
6960 beacon_set);
6961 if (beacon_set)
6962 cmd = NL80211_CMD_SET_BEACON;
6963
6964 nl80211_cmd(drv, msg, 0, cmd);
6965 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon head",
6966 params->head, params->head_len);
6967 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head);
6968 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon tail",
6969 params->tail, params->tail_len);
6970 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail);
6971 wpa_printf(MSG_DEBUG, "nl80211: ifindex=%d", ifindex);
6972 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
6973 wpa_printf(MSG_DEBUG, "nl80211: beacon_int=%d", params->beacon_int);
6974 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int);
6975 wpa_printf(MSG_DEBUG, "nl80211: dtim_period=%d", params->dtim_period);
6976 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period);
6977 wpa_hexdump_ascii(MSG_DEBUG, "nl80211: ssid",
6978 params->ssid, params->ssid_len);
6979 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
6980 params->ssid);
6981 if (params->proberesp && params->proberesp_len) {
6982 wpa_hexdump(MSG_DEBUG, "nl80211: proberesp (offload)",
6983 params->proberesp, params->proberesp_len);
6984 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len,
6985 params->proberesp);
6986 }
6987 switch (params->hide_ssid) {
6988 case NO_SSID_HIDING:
6989 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID not in use");
6990 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
6991 NL80211_HIDDEN_SSID_NOT_IN_USE);
6992 break;
6993 case HIDDEN_SSID_ZERO_LEN:
6994 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero len");
6995 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
6996 NL80211_HIDDEN_SSID_ZERO_LEN);
6997 break;
6998 case HIDDEN_SSID_ZERO_CONTENTS:
6999 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero contents");
7000 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
7001 NL80211_HIDDEN_SSID_ZERO_CONTENTS);
7002 break;
7003 }
7004 wpa_printf(MSG_DEBUG, "nl80211: privacy=%d", params->privacy);
7005 if (params->privacy)
7006 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
7007 wpa_printf(MSG_DEBUG, "nl80211: auth_algs=0x%x", params->auth_algs);
7008 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) ==
7009 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) {
7010 /* Leave out the attribute */
7011 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED)
7012 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE,
7013 NL80211_AUTHTYPE_SHARED_KEY);
7014 else
7015 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE,
7016 NL80211_AUTHTYPE_OPEN_SYSTEM);
7017
7018 wpa_printf(MSG_DEBUG, "nl80211: wpa_version=0x%x", params->wpa_version);
7019 ver = 0;
7020 if (params->wpa_version & WPA_PROTO_WPA)
7021 ver |= NL80211_WPA_VERSION_1;
7022 if (params->wpa_version & WPA_PROTO_RSN)
7023 ver |= NL80211_WPA_VERSION_2;
7024 if (ver)
7025 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
7026
7027 wpa_printf(MSG_DEBUG, "nl80211: key_mgmt_suites=0x%x",
7028 params->key_mgmt_suites);
7029 num_suites = 0;
7030 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X)
7031 suites[num_suites++] = WLAN_AKM_SUITE_8021X;
7032 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK)
7033 suites[num_suites++] = WLAN_AKM_SUITE_PSK;
7034 if (num_suites) {
7035 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES,
7036 num_suites * sizeof(u32), suites);
7037 }
7038
7039 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X &&
7040 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40))
7041 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT);
7042
7043 wpa_printf(MSG_DEBUG, "nl80211: pairwise_ciphers=0x%x",
7044 params->pairwise_ciphers);
7045 num_suites = wpa_cipher_to_cipher_suites(params->pairwise_ciphers,
7046 suites, ARRAY_SIZE(suites));
7047 if (num_suites) {
7048 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE,
7049 num_suites * sizeof(u32), suites);
7050 }
7051
7052 wpa_printf(MSG_DEBUG, "nl80211: group_cipher=0x%x",
7053 params->group_cipher);
7054 suite = wpa_cipher_to_cipher_suite(params->group_cipher);
7055 if (suite)
7056 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, suite);
7057
7058 if (params->beacon_ies) {
7059 wpa_hexdump_buf(MSG_DEBUG, "nl80211: beacon_ies",
7060 params->beacon_ies);
7061 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies),
7062 wpabuf_head(params->beacon_ies));
7063 }
7064 if (params->proberesp_ies) {
7065 wpa_hexdump_buf(MSG_DEBUG, "nl80211: proberesp_ies",
7066 params->proberesp_ies);
7067 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP,
7068 wpabuf_len(params->proberesp_ies),
7069 wpabuf_head(params->proberesp_ies));
7070 }
7071 if (params->assocresp_ies) {
7072 wpa_hexdump_buf(MSG_DEBUG, "nl80211: assocresp_ies",
7073 params->assocresp_ies);
7074 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP,
7075 wpabuf_len(params->assocresp_ies),
7076 wpabuf_head(params->assocresp_ies));
7077 }
7078
7079 if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) {
7080 wpa_printf(MSG_DEBUG, "nl80211: ap_max_inactivity=%d",
7081 params->ap_max_inactivity);
7082 NLA_PUT_U16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT,
7083 params->ap_max_inactivity);
7084 }
7085
7086 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7087 if (ret) {
7088 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)",
7089 ret, strerror(-ret));
7090 } else {
7091 bss->beacon_set = 1;
7092 nl80211_set_bss(bss, params->cts_protect, params->preamble,
7093 params->short_slot_time, params->ht_opmode,
7094 params->isolate, params->basic_rates);
7095 }
7096 return ret;
7097 nla_put_failure:
7098 nlmsg_free(msg);
7099 return -ENOBUFS;
7100 }
7101
7102
7103 static int nl80211_put_freq_params(struct nl_msg *msg,
7104 struct hostapd_freq_params *freq)
7105 {
7106 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq);
7107 if (freq->vht_enabled) {
7108 switch (freq->bandwidth) {
7109 case 20:
7110 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
7111 NL80211_CHAN_WIDTH_20);
7112 break;
7113 case 40:
7114 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
7115 NL80211_CHAN_WIDTH_40);
7116 break;
7117 case 80:
7118 if (freq->center_freq2)
7119 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
7120 NL80211_CHAN_WIDTH_80P80);
7121 else
7122 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
7123 NL80211_CHAN_WIDTH_80);
7124 break;
7125 case 160:
7126 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
7127 NL80211_CHAN_WIDTH_160);
7128 break;
7129 default:
7130 return -EINVAL;
7131 }
7132 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1);
7133 if (freq->center_freq2)
7134 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2,
7135 freq->center_freq2);
7136 } else if (freq->ht_enabled) {
7137 switch (freq->sec_channel_offset) {
7138 case -1:
7139 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
7140 NL80211_CHAN_HT40MINUS);
7141 break;
7142 case 1:
7143 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
7144 NL80211_CHAN_HT40PLUS);
7145 break;
7146 default:
7147 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
7148 NL80211_CHAN_HT20);
7149 break;
7150 }
7151 }
7152 return 0;
7153
7154 nla_put_failure:
7155 return -ENOBUFS;
7156 }
7157
7158
7159 static int wpa_driver_nl80211_set_freq(struct i802_bss *bss,
7160 struct hostapd_freq_params *freq)
7161 {
7162 struct wpa_driver_nl80211_data *drv = bss->drv;
7163 struct nl_msg *msg;
7164 int ret;
7165
7166 wpa_printf(MSG_DEBUG,
7167 "nl80211: Set freq %d (ht_enabled=%d, vht_enabled=%d, bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)",
7168 freq->freq, freq->ht_enabled, freq->vht_enabled,
7169 freq->bandwidth, freq->center_freq1, freq->center_freq2);
7170 msg = nlmsg_alloc();
7171 if (!msg)
7172 return -1;
7173
7174 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
7175
7176 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
7177 if (nl80211_put_freq_params(msg, freq) < 0)
7178 goto nla_put_failure;
7179
7180 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7181 msg = NULL;
7182 if (ret == 0) {
7183 bss->freq = freq->freq;
7184 return 0;
7185 }
7186 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): "
7187 "%d (%s)", freq->freq, ret, strerror(-ret));
7188 nla_put_failure:
7189 nlmsg_free(msg);
7190 return -1;
7191 }
7192
7193
7194 static u32 sta_flags_nl80211(int flags)
7195 {
7196 u32 f = 0;
7197
7198 if (flags & WPA_STA_AUTHORIZED)
7199 f |= BIT(NL80211_STA_FLAG_AUTHORIZED);
7200 if (flags & WPA_STA_WMM)
7201 f |= BIT(NL80211_STA_FLAG_WME);
7202 if (flags & WPA_STA_SHORT_PREAMBLE)
7203 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
7204 if (flags & WPA_STA_MFP)
7205 f |= BIT(NL80211_STA_FLAG_MFP);
7206 if (flags & WPA_STA_TDLS_PEER)
7207 f |= BIT(NL80211_STA_FLAG_TDLS_PEER);
7208
7209 return f;
7210 }
7211
7212
7213 static int wpa_driver_nl80211_sta_add(void *priv,
7214 struct hostapd_sta_add_params *params)
7215 {
7216 struct i802_bss *bss = priv;
7217 struct wpa_driver_nl80211_data *drv = bss->drv;
7218 struct nl_msg *msg;
7219 struct nl80211_sta_flag_update upd;
7220 int ret = -ENOBUFS;
7221
7222 if ((params->flags & WPA_STA_TDLS_PEER) &&
7223 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
7224 return -EOPNOTSUPP;
7225
7226 msg = nlmsg_alloc();
7227 if (!msg)
7228 return -ENOMEM;
7229
7230 wpa_printf(MSG_DEBUG, "nl80211: %s STA " MACSTR,
7231 params->set ? "Set" : "Add", MAC2STR(params->addr));
7232 nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION :
7233 NL80211_CMD_NEW_STATION);
7234
7235 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
7236 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr);
7237 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len,
7238 params->supp_rates);
7239 wpa_hexdump(MSG_DEBUG, " * supported rates", params->supp_rates,
7240 params->supp_rates_len);
7241 if (!params->set) {
7242 if (params->aid) {
7243 wpa_printf(MSG_DEBUG, " * aid=%u", params->aid);
7244 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid);
7245 } else {
7246 /*
7247 * cfg80211 validates that AID is non-zero, so we have
7248 * to make this a non-zero value for the TDLS case where
7249 * a dummy STA entry is used for now.
7250 */
7251 wpa_printf(MSG_DEBUG, " * aid=1 (TDLS workaround)");
7252 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, 1);
7253 }
7254 wpa_printf(MSG_DEBUG, " * listen_interval=%u",
7255 params->listen_interval);
7256 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL,
7257 params->listen_interval);
7258 } else if (params->aid && (params->flags & WPA_STA_TDLS_PEER)) {
7259 wpa_printf(MSG_DEBUG, " * peer_aid=%u", params->aid);
7260 NLA_PUT_U16(msg, NL80211_ATTR_PEER_AID, params->aid);
7261 }
7262 if (params->ht_capabilities) {
7263 wpa_hexdump(MSG_DEBUG, " * ht_capabilities",
7264 (u8 *) params->ht_capabilities,
7265 sizeof(*params->ht_capabilities));
7266 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY,
7267 sizeof(*params->ht_capabilities),
7268 params->ht_capabilities);
7269 }
7270
7271 if (params->vht_capabilities) {
7272 wpa_hexdump(MSG_DEBUG, " * vht_capabilities",
7273 (u8 *) params->vht_capabilities,
7274 sizeof(*params->vht_capabilities));
7275 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY,
7276 sizeof(*params->vht_capabilities),
7277 params->vht_capabilities);
7278 }
7279
7280 wpa_printf(MSG_DEBUG, " * capability=0x%x", params->capability);
7281 NLA_PUT_U16(msg, NL80211_ATTR_STA_CAPABILITY, params->capability);
7282
7283 if (params->ext_capab) {
7284 wpa_hexdump(MSG_DEBUG, " * ext_capab",
7285 params->ext_capab, params->ext_capab_len);
7286 NLA_PUT(msg, NL80211_ATTR_STA_EXT_CAPABILITY,
7287 params->ext_capab_len, params->ext_capab);
7288 }
7289
7290 if (params->supp_channels) {
7291 wpa_hexdump(MSG_DEBUG, " * supported channels",
7292 params->supp_channels, params->supp_channels_len);
7293 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_CHANNELS,
7294 params->supp_channels_len, params->supp_channels);
7295 }
7296
7297 if (params->supp_oper_classes) {
7298 wpa_hexdump(MSG_DEBUG, " * supported operating classes",
7299 params->supp_oper_classes,
7300 params->supp_oper_classes_len);
7301 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES,
7302 params->supp_oper_classes_len,
7303 params->supp_oper_classes);
7304 }
7305
7306 os_memset(&upd, 0, sizeof(upd));
7307 upd.mask = sta_flags_nl80211(params->flags);
7308 upd.set = upd.mask;
7309 wpa_printf(MSG_DEBUG, " * flags set=0x%x mask=0x%x",
7310 upd.set, upd.mask);
7311 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
7312
7313 if (params->flags & WPA_STA_WMM) {
7314 struct nlattr *wme = nla_nest_start(msg, NL80211_ATTR_STA_WME);
7315
7316 if (!wme)
7317 goto nla_put_failure;
7318
7319 wpa_printf(MSG_DEBUG, " * qosinfo=0x%x", params->qosinfo);
7320 NLA_PUT_U8(msg, NL80211_STA_WME_UAPSD_QUEUES,
7321 params->qosinfo & WMM_QOSINFO_STA_AC_MASK);
7322 NLA_PUT_U8(msg, NL80211_STA_WME_MAX_SP,
7323 (params->qosinfo >> WMM_QOSINFO_STA_SP_SHIFT) &
7324 WMM_QOSINFO_STA_SP_MASK);
7325 nla_nest_end(msg, wme);
7326 }
7327
7328 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7329 msg = NULL;
7330 if (ret)
7331 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION "
7332 "result: %d (%s)", params->set ? "SET" : "NEW", ret,
7333 strerror(-ret));
7334 if (ret == -EEXIST)
7335 ret = 0;
7336 nla_put_failure:
7337 nlmsg_free(msg);
7338 return ret;
7339 }
7340
7341
7342 static int wpa_driver_nl80211_sta_remove(struct i802_bss *bss, const u8 *addr)
7343 {
7344 struct wpa_driver_nl80211_data *drv = bss->drv;
7345 struct nl_msg *msg;
7346 int ret;
7347
7348 msg = nlmsg_alloc();
7349 if (!msg)
7350 return -ENOMEM;
7351
7352 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION);
7353
7354 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
7355 if_nametoindex(bss->ifname));
7356 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7357
7358 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7359 wpa_printf(MSG_DEBUG, "nl80211: sta_remove -> DEL_STATION %s " MACSTR
7360 " --> %d (%s)",
7361 bss->ifname, MAC2STR(addr), ret, strerror(-ret));
7362 if (ret == -ENOENT)
7363 return 0;
7364 return ret;
7365 nla_put_failure:
7366 nlmsg_free(msg);
7367 return -ENOBUFS;
7368 }
7369
7370
7371 static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
7372 int ifidx)
7373 {
7374 struct nl_msg *msg;
7375
7376 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx);
7377
7378 /* stop listening for EAPOL on this interface */
7379 del_ifidx(drv, ifidx);
7380
7381 msg = nlmsg_alloc();
7382 if (!msg)
7383 goto nla_put_failure;
7384
7385 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE);
7386 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx);
7387
7388 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
7389 return;
7390 msg = NULL;
7391 nla_put_failure:
7392 nlmsg_free(msg);
7393 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx);
7394 }
7395
7396
7397 static const char * nl80211_iftype_str(enum nl80211_iftype mode)
7398 {
7399 switch (mode) {
7400 case NL80211_IFTYPE_ADHOC:
7401 return "ADHOC";
7402 case NL80211_IFTYPE_STATION:
7403 return "STATION";
7404 case NL80211_IFTYPE_AP:
7405 return "AP";
7406 case NL80211_IFTYPE_AP_VLAN:
7407 return "AP_VLAN";
7408 case NL80211_IFTYPE_WDS:
7409 return "WDS";
7410 case NL80211_IFTYPE_MONITOR:
7411 return "MONITOR";
7412 case NL80211_IFTYPE_MESH_POINT:
7413 return "MESH_POINT";
7414 case NL80211_IFTYPE_P2P_CLIENT:
7415 return "P2P_CLIENT";
7416 case NL80211_IFTYPE_P2P_GO:
7417 return "P2P_GO";
7418 case NL80211_IFTYPE_P2P_DEVICE:
7419 return "P2P_DEVICE";
7420 default:
7421 return "unknown";
7422 }
7423 }
7424
7425
7426 static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv,
7427 const char *ifname,
7428 enum nl80211_iftype iftype,
7429 const u8 *addr, int wds,
7430 int (*handler)(struct nl_msg *, void *),
7431 void *arg)
7432 {
7433 struct nl_msg *msg;
7434 int ifidx;
7435 int ret = -ENOBUFS;
7436
7437 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)",
7438 iftype, nl80211_iftype_str(iftype));
7439
7440 msg = nlmsg_alloc();
7441 if (!msg)
7442 return -1;
7443
7444 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE);
7445 if (nl80211_set_iface_id(msg, drv->first_bss) < 0)
7446 goto nla_put_failure;
7447 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname);
7448 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype);
7449
7450 if (iftype == NL80211_IFTYPE_MONITOR) {
7451 struct nlattr *flags;
7452
7453 flags = nla_nest_start(msg, NL80211_ATTR_MNTR_FLAGS);
7454 if (!flags)
7455 goto nla_put_failure;
7456
7457 NLA_PUT_FLAG(msg, NL80211_MNTR_FLAG_COOK_FRAMES);
7458
7459 nla_nest_end(msg, flags);
7460 } else if (wds) {
7461 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds);
7462 }
7463
7464 ret = send_and_recv_msgs(drv, msg, handler, arg);
7465 msg = NULL;
7466 if (ret) {
7467 nla_put_failure:
7468 nlmsg_free(msg);
7469 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)",
7470 ifname, ret, strerror(-ret));
7471 return ret;
7472 }
7473
7474 if (iftype == NL80211_IFTYPE_P2P_DEVICE)
7475 return 0;
7476
7477 ifidx = if_nametoindex(ifname);
7478 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d",
7479 ifname, ifidx);
7480
7481 if (ifidx <= 0)
7482 return -1;
7483
7484 /* start listening for EAPOL on this interface */
7485 add_ifidx(drv, ifidx);
7486
7487 if (addr && iftype != NL80211_IFTYPE_MONITOR &&
7488 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) {
7489 nl80211_remove_iface(drv, ifidx);
7490 return -1;
7491 }
7492
7493 return ifidx;
7494 }
7495
7496
7497 static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
7498 const char *ifname, enum nl80211_iftype iftype,
7499 const u8 *addr, int wds,
7500 int (*handler)(struct nl_msg *, void *),
7501 void *arg, int use_existing)
7502 {
7503 int ret;
7504
7505 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds, handler,
7506 arg);
7507
7508 /* if error occurred and interface exists already */
7509 if (ret == -ENFILE && if_nametoindex(ifname)) {
7510 if (use_existing) {
7511 wpa_printf(MSG_DEBUG, "nl80211: Continue using existing interface %s",
7512 ifname);
7513 return -ENFILE;
7514 }
7515 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname);
7516
7517 /* Try to remove the interface that was already there. */
7518 nl80211_remove_iface(drv, if_nametoindex(ifname));
7519
7520 /* Try to create the interface again */
7521 ret = nl80211_create_iface_once(drv, ifname, iftype, addr,
7522 wds, handler, arg);
7523 }
7524
7525 if (ret >= 0 && is_p2p_net_interface(iftype))
7526 nl80211_disable_11b_rates(drv, ret, 1);
7527
7528 return ret;
7529 }
7530
7531
7532 static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok)
7533 {
7534 struct ieee80211_hdr *hdr;
7535 u16 fc;
7536 union wpa_event_data event;
7537
7538 hdr = (struct ieee80211_hdr *) buf;
7539 fc = le_to_host16(hdr->frame_control);
7540
7541 os_memset(&event, 0, sizeof(event));
7542 event.tx_status.type = WLAN_FC_GET_TYPE(fc);
7543 event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
7544 event.tx_status.dst = hdr->addr1;
7545 event.tx_status.data = buf;
7546 event.tx_status.data_len = len;
7547 event.tx_status.ack = ok;
7548 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event);
7549 }
7550
7551
7552 static void from_unknown_sta(struct wpa_driver_nl80211_data *drv,
7553 u8 *buf, size_t len)
7554 {
7555 struct ieee80211_hdr *hdr = (void *)buf;
7556 u16 fc;
7557 union wpa_event_data event;
7558
7559 if (len < sizeof(*hdr))
7560 return;
7561
7562 fc = le_to_host16(hdr->frame_control);
7563
7564 os_memset(&event, 0, sizeof(event));
7565 event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len);
7566 event.rx_from_unknown.addr = hdr->addr2;
7567 event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) ==
7568 (WLAN_FC_FROMDS | WLAN_FC_TODS);
7569 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event);
7570 }
7571
7572
7573 static void handle_frame(struct wpa_driver_nl80211_data *drv,
7574 u8 *buf, size_t len, int datarate, int ssi_signal)
7575 {
7576 struct ieee80211_hdr *hdr;
7577 u16 fc;
7578 union wpa_event_data event;
7579
7580 hdr = (struct ieee80211_hdr *) buf;
7581 fc = le_to_host16(hdr->frame_control);
7582
7583 switch (WLAN_FC_GET_TYPE(fc)) {
7584 case WLAN_FC_TYPE_MGMT:
7585 os_memset(&event, 0, sizeof(event));
7586 event.rx_mgmt.frame = buf;
7587 event.rx_mgmt.frame_len = len;
7588 event.rx_mgmt.datarate = datarate;
7589 event.rx_mgmt.ssi_signal = ssi_signal;
7590 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
7591 break;
7592 case WLAN_FC_TYPE_CTRL:
7593 /* can only get here with PS-Poll frames */
7594 wpa_printf(MSG_DEBUG, "CTRL");
7595 from_unknown_sta(drv, buf, len);
7596 break;
7597 case WLAN_FC_TYPE_DATA:
7598 from_unknown_sta(drv, buf, len);
7599 break;
7600 }
7601 }
7602
7603
7604 static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx)
7605 {
7606 struct wpa_driver_nl80211_data *drv = eloop_ctx;
7607 int len;
7608 unsigned char buf[3000];
7609 struct ieee80211_radiotap_iterator iter;
7610 int ret;
7611 int datarate = 0, ssi_signal = 0;
7612 int injected = 0, failed = 0, rxflags = 0;
7613
7614 len = recv(sock, buf, sizeof(buf), 0);
7615 if (len < 0) {
7616 wpa_printf(MSG_ERROR, "nl80211: Monitor socket recv failed: %s",
7617 strerror(errno));
7618 return;
7619 }
7620
7621 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) {
7622 wpa_printf(MSG_INFO, "nl80211: received invalid radiotap frame");
7623 return;
7624 }
7625
7626 while (1) {
7627 ret = ieee80211_radiotap_iterator_next(&iter);
7628 if (ret == -ENOENT)
7629 break;
7630 if (ret) {
7631 wpa_printf(MSG_INFO, "nl80211: received invalid radiotap frame (%d)",
7632 ret);
7633 return;
7634 }
7635 switch (iter.this_arg_index) {
7636 case IEEE80211_RADIOTAP_FLAGS:
7637 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS)
7638 len -= 4;
7639 break;
7640 case IEEE80211_RADIOTAP_RX_FLAGS:
7641 rxflags = 1;
7642 break;
7643 case IEEE80211_RADIOTAP_TX_FLAGS:
7644 injected = 1;
7645 failed = le_to_host16((*(uint16_t *) iter.this_arg)) &
7646 IEEE80211_RADIOTAP_F_TX_FAIL;
7647 break;
7648 case IEEE80211_RADIOTAP_DATA_RETRIES:
7649 break;
7650 case IEEE80211_RADIOTAP_CHANNEL:
7651 /* TODO: convert from freq/flags to channel number */
7652 break;
7653 case IEEE80211_RADIOTAP_RATE:
7654 datarate = *iter.this_arg * 5;
7655 break;
7656 case IEEE80211_RADIOTAP_DBM_ANTSIGNAL:
7657 ssi_signal = (s8) *iter.this_arg;
7658 break;
7659 }
7660 }
7661
7662 if (rxflags && injected)
7663 return;
7664
7665 if (!injected)
7666 handle_frame(drv, buf + iter.max_length,
7667 len - iter.max_length, datarate, ssi_signal);
7668 else
7669 handle_tx_callback(drv->ctx, buf + iter.max_length,
7670 len - iter.max_length, !failed);
7671 }
7672
7673
7674 /*
7675 * we post-process the filter code later and rewrite
7676 * this to the offset to the last instruction
7677 */
7678 #define PASS 0xFF
7679 #define FAIL 0xFE
7680
7681 static struct sock_filter msock_filter_insns[] = {
7682 /*
7683 * do a little-endian load of the radiotap length field
7684 */
7685 /* load lower byte into A */
7686 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2),
7687 /* put it into X (== index register) */
7688 BPF_STMT(BPF_MISC| BPF_TAX, 0),
7689 /* load upper byte into A */
7690 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3),
7691 /* left-shift it by 8 */
7692 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8),
7693 /* or with X */
7694 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0),
7695 /* put result into X */
7696 BPF_STMT(BPF_MISC| BPF_TAX, 0),
7697
7698 /*
7699 * Allow management frames through, this also gives us those
7700 * management frames that we sent ourselves with status
7701 */
7702 /* load the lower byte of the IEEE 802.11 frame control field */
7703 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
7704 /* mask off frame type and version */
7705 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF),
7706 /* accept frame if it's both 0, fall through otherwise */
7707 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0),
7708
7709 /*
7710 * TODO: add a bit to radiotap RX flags that indicates
7711 * that the sending station is not associated, then
7712 * add a filter here that filters on our DA and that flag
7713 * to allow us to deauth frames to that bad station.
7714 *
7715 * For now allow all To DS data frames through.
7716 */
7717 /* load the IEEE 802.11 frame control field */
7718 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0),
7719 /* mask off frame type, version and DS status */
7720 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03),
7721 /* accept frame if version 0, type 2 and To DS, fall through otherwise
7722 */
7723 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0),
7724
7725 #if 0
7726 /*
7727 * drop non-data frames
7728 */
7729 /* load the lower byte of the frame control field */
7730 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
7731 /* mask off QoS bit */
7732 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c),
7733 /* drop non-data frames */
7734 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL),
7735 #endif
7736 /* load the upper byte of the frame control field */
7737 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1),
7738 /* mask off toDS/fromDS */
7739 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03),
7740 /* accept WDS frames */
7741 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0),
7742
7743 /*
7744 * add header length to index
7745 */
7746 /* load the lower byte of the frame control field */
7747 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
7748 /* mask off QoS bit */
7749 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80),
7750 /* right shift it by 6 to give 0 or 2 */
7751 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6),
7752 /* add data frame header length */
7753 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24),
7754 /* add index, was start of 802.11 header */
7755 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0),
7756 /* move to index, now start of LL header */
7757 BPF_STMT(BPF_MISC | BPF_TAX, 0),
7758
7759 /*
7760 * Accept empty data frames, we use those for
7761 * polling activity.
7762 */
7763 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0),
7764 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0),
7765
7766 /*
7767 * Accept EAPOL frames
7768 */
7769 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0),
7770 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL),
7771 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4),
7772 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL),
7773
7774 /* keep these last two statements or change the code below */
7775 /* return 0 == "DROP" */
7776 BPF_STMT(BPF_RET | BPF_K, 0),
7777 /* return ~0 == "keep all" */
7778 BPF_STMT(BPF_RET | BPF_K, ~0),
7779 };
7780
7781 static struct sock_fprog msock_filter = {
7782 .len = ARRAY_SIZE(msock_filter_insns),
7783 .filter = msock_filter_insns,
7784 };
7785
7786
7787 static int add_monitor_filter(int s)
7788 {
7789 int idx;
7790
7791 /* rewrite all PASS/FAIL jump offsets */
7792 for (idx = 0; idx < msock_filter.len; idx++) {
7793 struct sock_filter *insn = &msock_filter_insns[idx];
7794
7795 if (BPF_CLASS(insn->code) == BPF_JMP) {
7796 if (insn->code == (BPF_JMP|BPF_JA)) {
7797 if (insn->k == PASS)
7798 insn->k = msock_filter.len - idx - 2;
7799 else if (insn->k == FAIL)
7800 insn->k = msock_filter.len - idx - 3;
7801 }
7802
7803 if (insn->jt == PASS)
7804 insn->jt = msock_filter.len - idx - 2;
7805 else if (insn->jt == FAIL)
7806 insn->jt = msock_filter.len - idx - 3;
7807
7808 if (insn->jf == PASS)
7809 insn->jf = msock_filter.len - idx - 2;
7810 else if (insn->jf == FAIL)
7811 insn->jf = msock_filter.len - idx - 3;
7812 }
7813 }
7814
7815 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER,
7816 &msock_filter, sizeof(msock_filter))) {
7817 wpa_printf(MSG_ERROR, "nl80211: setsockopt(SO_ATTACH_FILTER) failed: %s",
7818 strerror(errno));
7819 return -1;
7820 }
7821
7822 return 0;
7823 }
7824
7825
7826 static void nl80211_remove_monitor_interface(
7827 struct wpa_driver_nl80211_data *drv)
7828 {
7829 if (drv->monitor_refcount > 0)
7830 drv->monitor_refcount--;
7831 wpa_printf(MSG_DEBUG, "nl80211: Remove monitor interface: refcount=%d",
7832 drv->monitor_refcount);
7833 if (drv->monitor_refcount > 0)
7834 return;
7835
7836 if (drv->monitor_ifidx >= 0) {
7837 nl80211_remove_iface(drv, drv->monitor_ifidx);
7838 drv->monitor_ifidx = -1;
7839 }
7840 if (drv->monitor_sock >= 0) {
7841 eloop_unregister_read_sock(drv->monitor_sock);
7842 close(drv->monitor_sock);
7843 drv->monitor_sock = -1;
7844 }
7845 }
7846
7847
7848 static int
7849 nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv)
7850 {
7851 char buf[IFNAMSIZ];
7852 struct sockaddr_ll ll;
7853 int optval;
7854 socklen_t optlen;
7855
7856 if (drv->monitor_ifidx >= 0) {
7857 drv->monitor_refcount++;
7858 wpa_printf(MSG_DEBUG, "nl80211: Re-use existing monitor interface: refcount=%d",
7859 drv->monitor_refcount);
7860 return 0;
7861 }
7862
7863 if (os_strncmp(drv->first_bss->ifname, "p2p-", 4) == 0) {
7864 /*
7865 * P2P interface name is of the format p2p-%s-%d. For monitor
7866 * interface name corresponding to P2P GO, replace "p2p-" with
7867 * "mon-" to retain the same interface name length and to
7868 * indicate that it is a monitor interface.
7869 */
7870 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss->ifname + 4);
7871 } else {
7872 /* Non-P2P interface with AP functionality. */
7873 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss->ifname);
7874 }
7875
7876 buf[IFNAMSIZ - 1] = '\0';
7877
7878 drv->monitor_ifidx =
7879 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL,
7880 0, NULL, NULL, 0);
7881
7882 if (drv->monitor_ifidx == -EOPNOTSUPP) {
7883 /*
7884 * This is backward compatibility for a few versions of
7885 * the kernel only that didn't advertise the right
7886 * attributes for the only driver that then supported
7887 * AP mode w/o monitor -- ath6kl.
7888 */
7889 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support "
7890 "monitor interface type - try to run without it");
7891 drv->device_ap_sme = 1;
7892 }
7893
7894 if (drv->monitor_ifidx < 0)
7895 return -1;
7896
7897 if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1))
7898 goto error;
7899
7900 memset(&ll, 0, sizeof(ll));
7901 ll.sll_family = AF_PACKET;
7902 ll.sll_ifindex = drv->monitor_ifidx;
7903 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
7904 if (drv->monitor_sock < 0) {
7905 wpa_printf(MSG_ERROR, "nl80211: socket[PF_PACKET,SOCK_RAW] failed: %s",
7906 strerror(errno));
7907 goto error;
7908 }
7909
7910 if (add_monitor_filter(drv->monitor_sock)) {
7911 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor "
7912 "interface; do filtering in user space");
7913 /* This works, but will cost in performance. */
7914 }
7915
7916 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) {
7917 wpa_printf(MSG_ERROR, "nl80211: monitor socket bind failed: %s",
7918 strerror(errno));
7919 goto error;
7920 }
7921
7922 optlen = sizeof(optval);
7923 optval = 20;
7924 if (setsockopt
7925 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) {
7926 wpa_printf(MSG_ERROR, "nl80211: Failed to set socket priority: %s",
7927 strerror(errno));
7928 goto error;
7929 }
7930
7931 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read,
7932 drv, NULL)) {
7933 wpa_printf(MSG_INFO, "nl80211: Could not register monitor read socket");
7934 goto error;
7935 }
7936
7937 drv->monitor_refcount++;
7938 return 0;
7939 error:
7940 nl80211_remove_monitor_interface(drv);
7941 return -1;
7942 }
7943
7944
7945 static int nl80211_setup_ap(struct i802_bss *bss)
7946 {
7947 struct wpa_driver_nl80211_data *drv = bss->drv;
7948
7949 wpa_printf(MSG_DEBUG, "nl80211: Setup AP(%s) - device_ap_sme=%d use_monitor=%d",
7950 bss->ifname, drv->device_ap_sme, drv->use_monitor);
7951
7952 /*
7953 * Disable Probe Request reporting unless we need it in this way for
7954 * devices that include the AP SME, in the other case (unless using
7955 * monitor iface) we'll get it through the nl_mgmt socket instead.
7956 */
7957 if (!drv->device_ap_sme)
7958 wpa_driver_nl80211_probe_req_report(bss, 0);
7959
7960 if (!drv->device_ap_sme && !drv->use_monitor)
7961 if (nl80211_mgmt_subscribe_ap(bss))
7962 return -1;
7963
7964 if (drv->device_ap_sme && !drv->use_monitor)
7965 if (nl80211_mgmt_subscribe_ap_dev_sme(bss))
7966 return -1;
7967
7968 if (!drv->device_ap_sme && drv->use_monitor &&
7969 nl80211_create_monitor_interface(drv) &&
7970 !drv->device_ap_sme)
7971 return -1;
7972
7973 if (drv->device_ap_sme &&
7974 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) {
7975 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable "
7976 "Probe Request frame reporting in AP mode");
7977 /* Try to survive without this */
7978 }
7979
7980 return 0;
7981 }
7982
7983
7984 static void nl80211_teardown_ap(struct i802_bss *bss)
7985 {
7986 struct wpa_driver_nl80211_data *drv = bss->drv;
7987
7988 wpa_printf(MSG_DEBUG, "nl80211: Teardown AP(%s) - device_ap_sme=%d use_monitor=%d",
7989 bss->ifname, drv->device_ap_sme, drv->use_monitor);
7990 if (drv->device_ap_sme) {
7991 wpa_driver_nl80211_probe_req_report(bss, 0);
7992 if (!drv->use_monitor)
7993 nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)");
7994 } else if (drv->use_monitor)
7995 nl80211_remove_monitor_interface(drv);
7996 else
7997 nl80211_mgmt_unsubscribe(bss, "AP teardown");
7998
7999 bss->beacon_set = 0;
8000 }
8001
8002
8003 static int nl80211_send_eapol_data(struct i802_bss *bss,
8004 const u8 *addr, const u8 *data,
8005 size_t data_len)
8006 {
8007 struct sockaddr_ll ll;
8008 int ret;
8009
8010 if (bss->drv->eapol_tx_sock < 0) {
8011 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL");
8012 return -1;
8013 }
8014
8015 os_memset(&ll, 0, sizeof(ll));
8016 ll.sll_family = AF_PACKET;
8017 ll.sll_ifindex = bss->ifindex;
8018 ll.sll_protocol = htons(ETH_P_PAE);
8019 ll.sll_halen = ETH_ALEN;
8020 os_memcpy(ll.sll_addr, addr, ETH_ALEN);
8021 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0,
8022 (struct sockaddr *) &ll, sizeof(ll));
8023 if (ret < 0)
8024 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s",
8025 strerror(errno));
8026
8027 return ret;
8028 }
8029
8030
8031 static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
8032
8033 static int wpa_driver_nl80211_hapd_send_eapol(
8034 void *priv, const u8 *addr, const u8 *data,
8035 size_t data_len, int encrypt, const u8 *own_addr, u32 flags)
8036 {
8037 struct i802_bss *bss = priv;
8038 struct wpa_driver_nl80211_data *drv = bss->drv;
8039 struct ieee80211_hdr *hdr;
8040 size_t len;
8041 u8 *pos;
8042 int res;
8043 int qos = flags & WPA_STA_WMM;
8044
8045 if (drv->device_ap_sme || !drv->use_monitor)
8046 return nl80211_send_eapol_data(bss, addr, data, data_len);
8047
8048 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 +
8049 data_len;
8050 hdr = os_zalloc(len);
8051 if (hdr == NULL) {
8052 wpa_printf(MSG_INFO, "nl80211: Failed to allocate EAPOL buffer(len=%lu)",
8053 (unsigned long) len);
8054 return -1;
8055 }
8056
8057 hdr->frame_control =
8058 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA);
8059 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS);
8060 if (encrypt)
8061 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP);
8062 if (qos) {
8063 hdr->frame_control |=
8064 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4);
8065 }
8066
8067 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN);
8068 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
8069 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
8070 pos = (u8 *) (hdr + 1);
8071
8072 if (qos) {
8073 /* Set highest priority in QoS header */
8074 pos[0] = 7;
8075 pos[1] = 0;
8076 pos += 2;
8077 }
8078
8079 memcpy(pos, rfc1042_header, sizeof(rfc1042_header));
8080 pos += sizeof(rfc1042_header);
8081 WPA_PUT_BE16(pos, ETH_P_PAE);
8082 pos += 2;
8083 memcpy(pos, data, data_len);
8084
8085 res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0,
8086 0, 0, 0, 0);
8087 if (res < 0) {
8088 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - "
8089 "failed: %d (%s)",
8090 (unsigned long) len, errno, strerror(errno));
8091 }
8092 os_free(hdr);
8093
8094 return res;
8095 }
8096
8097
8098 static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr,
8099 int total_flags,
8100 int flags_or, int flags_and)
8101 {
8102 struct i802_bss *bss = priv;
8103 struct wpa_driver_nl80211_data *drv = bss->drv;
8104 struct nl_msg *msg;
8105 struct nlattr *flags;
8106 struct nl80211_sta_flag_update upd;
8107
8108 msg = nlmsg_alloc();
8109 if (!msg)
8110 return -ENOMEM;
8111
8112 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
8113
8114 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
8115 if_nametoindex(bss->ifname));
8116 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
8117
8118 /*
8119 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This
8120 * can be removed eventually.
8121 */
8122 flags = nla_nest_start(msg, NL80211_ATTR_STA_FLAGS);
8123 if (!flags)
8124 goto nla_put_failure;
8125 if (total_flags & WPA_STA_AUTHORIZED)
8126 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_AUTHORIZED);
8127
8128 if (total_flags & WPA_STA_WMM)
8129 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_WME);
8130
8131 if (total_flags & WPA_STA_SHORT_PREAMBLE)
8132 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_SHORT_PREAMBLE);
8133
8134 if (total_flags & WPA_STA_MFP)
8135 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_MFP);
8136
8137 if (total_flags & WPA_STA_TDLS_PEER)
8138 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_TDLS_PEER);
8139
8140 nla_nest_end(msg, flags);
8141
8142 os_memset(&upd, 0, sizeof(upd));
8143 upd.mask = sta_flags_nl80211(flags_or | ~flags_and);
8144 upd.set = sta_flags_nl80211(flags_or);
8145 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
8146
8147 return send_and_recv_msgs(drv, msg, NULL, NULL);
8148 nla_put_failure:
8149 nlmsg_free(msg);
8150 return -ENOBUFS;
8151 }
8152
8153
8154 static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv,
8155 struct wpa_driver_associate_params *params)
8156 {
8157 enum nl80211_iftype nlmode, old_mode;
8158 struct hostapd_freq_params freq = {
8159 .freq = params->freq,
8160 };
8161
8162 if (params->p2p) {
8163 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P "
8164 "group (GO)");
8165 nlmode = NL80211_IFTYPE_P2P_GO;
8166 } else
8167 nlmode = NL80211_IFTYPE_AP;
8168
8169 old_mode = drv->nlmode;
8170 if (wpa_driver_nl80211_set_mode(drv->first_bss, nlmode)) {
8171 nl80211_remove_monitor_interface(drv);
8172 return -1;
8173 }
8174
8175 if (wpa_driver_nl80211_set_freq(drv->first_bss, &freq)) {
8176 if (old_mode != nlmode)
8177 wpa_driver_nl80211_set_mode(drv->first_bss, old_mode);
8178 nl80211_remove_monitor_interface(drv);
8179 return -1;
8180 }
8181
8182 return 0;
8183 }
8184
8185
8186 static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv)
8187 {
8188 struct nl_msg *msg;
8189 int ret = -1;
8190
8191 msg = nlmsg_alloc();
8192 if (!msg)
8193 return -1;
8194
8195 nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS);
8196 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8197 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8198 msg = NULL;
8199 if (ret) {
8200 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d "
8201 "(%s)", ret, strerror(-ret));
8202 goto nla_put_failure;
8203 }
8204
8205 ret = 0;
8206 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully");
8207
8208 nla_put_failure:
8209 if (wpa_driver_nl80211_set_mode(drv->first_bss,
8210 NL80211_IFTYPE_STATION)) {
8211 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into "
8212 "station mode");
8213 }
8214
8215 nlmsg_free(msg);
8216 return ret;
8217 }
8218
8219
8220 static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv,
8221 struct wpa_driver_associate_params *params)
8222 {
8223 struct nl_msg *msg;
8224 int ret = -1;
8225 int count = 0;
8226
8227 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex);
8228
8229 if (wpa_driver_nl80211_set_mode(drv->first_bss,
8230 NL80211_IFTYPE_ADHOC)) {
8231 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into "
8232 "IBSS mode");
8233 return -1;
8234 }
8235
8236 retry:
8237 msg = nlmsg_alloc();
8238 if (!msg)
8239 return -1;
8240
8241 nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS);
8242 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8243
8244 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid))
8245 goto nla_put_failure;
8246
8247 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
8248 params->ssid, params->ssid_len);
8249 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
8250 params->ssid);
8251 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
8252 drv->ssid_len = params->ssid_len;
8253
8254 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
8255 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
8256
8257 ret = nl80211_set_conn_keys(params, msg);
8258 if (ret)
8259 goto nla_put_failure;
8260
8261 if (params->bssid && params->fixed_bssid) {
8262 wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR,
8263 MAC2STR(params->bssid));
8264 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
8265 }
8266
8267 if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X ||
8268 params->key_mgmt_suite == WPA_KEY_MGMT_PSK ||
8269 params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SHA256 ||
8270 params->key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256) {
8271 wpa_printf(MSG_DEBUG, " * control port");
8272 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
8273 }
8274
8275 if (params->wpa_ie) {
8276 wpa_hexdump(MSG_DEBUG,
8277 " * Extra IEs for Beacon/Probe Response frames",
8278 params->wpa_ie, params->wpa_ie_len);
8279 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
8280 params->wpa_ie);
8281 }
8282
8283 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8284 msg = NULL;
8285 if (ret) {
8286 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)",
8287 ret, strerror(-ret));
8288 count++;
8289 if (ret == -EALREADY && count == 1) {
8290 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after "
8291 "forced leave");
8292 nl80211_leave_ibss(drv);
8293 nlmsg_free(msg);
8294 goto retry;
8295 }
8296
8297 goto nla_put_failure;
8298 }
8299 ret = 0;
8300 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully");
8301
8302 nla_put_failure:
8303 nlmsg_free(msg);
8304 return ret;
8305 }
8306
8307
8308 static int nl80211_connect_common(struct wpa_driver_nl80211_data *drv,
8309 struct wpa_driver_associate_params *params,
8310 struct nl_msg *msg)
8311 {
8312 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8313
8314 if (params->bssid) {
8315 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
8316 MAC2STR(params->bssid));
8317 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
8318 }
8319
8320 if (params->freq) {
8321 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
8322 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
8323 drv->assoc_freq = params->freq;
8324 } else
8325 drv->assoc_freq = 0;
8326
8327 if (params->bg_scan_period >= 0) {
8328 wpa_printf(MSG_DEBUG, " * bg scan period=%d",
8329 params->bg_scan_period);
8330 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD,
8331 params->bg_scan_period);
8332 }
8333
8334 if (params->ssid) {
8335 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
8336 params->ssid, params->ssid_len);
8337 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
8338 params->ssid);
8339 if (params->ssid_len > sizeof(drv->ssid))
8340 goto nla_put_failure;
8341 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
8342 drv->ssid_len = params->ssid_len;
8343 }
8344
8345 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
8346 if (params->wpa_ie)
8347 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
8348 params->wpa_ie);
8349
8350 if (params->wpa_proto) {
8351 enum nl80211_wpa_versions ver = 0;
8352
8353 if (params->wpa_proto & WPA_PROTO_WPA)
8354 ver |= NL80211_WPA_VERSION_1;
8355 if (params->wpa_proto & WPA_PROTO_RSN)
8356 ver |= NL80211_WPA_VERSION_2;
8357
8358 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver);
8359 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
8360 }
8361
8362 if (params->pairwise_suite != WPA_CIPHER_NONE) {
8363 u32 cipher = wpa_cipher_to_cipher_suite(params->pairwise_suite);
8364 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher);
8365 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
8366 }
8367
8368 if (params->group_suite != WPA_CIPHER_NONE) {
8369 u32 cipher = wpa_cipher_to_cipher_suite(params->group_suite);
8370 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher);
8371 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
8372 }
8373
8374 if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X ||
8375 params->key_mgmt_suite == WPA_KEY_MGMT_PSK ||
8376 params->key_mgmt_suite == WPA_KEY_MGMT_FT_IEEE8021X ||
8377 params->key_mgmt_suite == WPA_KEY_MGMT_FT_PSK ||
8378 params->key_mgmt_suite == WPA_KEY_MGMT_CCKM) {
8379 int mgmt = WLAN_AKM_SUITE_PSK;
8380
8381 switch (params->key_mgmt_suite) {
8382 case WPA_KEY_MGMT_CCKM:
8383 mgmt = WLAN_AKM_SUITE_CCKM;
8384 break;
8385 case WPA_KEY_MGMT_IEEE8021X:
8386 mgmt = WLAN_AKM_SUITE_8021X;
8387 break;
8388 case WPA_KEY_MGMT_FT_IEEE8021X:
8389 mgmt = WLAN_AKM_SUITE_FT_8021X;
8390 break;
8391 case WPA_KEY_MGMT_FT_PSK:
8392 mgmt = WLAN_AKM_SUITE_FT_PSK;
8393 break;
8394 case WPA_KEY_MGMT_PSK:
8395 default:
8396 mgmt = WLAN_AKM_SUITE_PSK;
8397 break;
8398 }
8399 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt);
8400 }
8401
8402 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
8403
8404 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED)
8405 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED);
8406
8407 if (params->disable_ht)
8408 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT);
8409
8410 if (params->htcaps && params->htcaps_mask) {
8411 int sz = sizeof(struct ieee80211_ht_capabilities);
8412 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps);
8413 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz,
8414 params->htcaps_mask);
8415 }
8416
8417 #ifdef CONFIG_VHT_OVERRIDES
8418 if (params->disable_vht) {
8419 wpa_printf(MSG_DEBUG, " * VHT disabled");
8420 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT);
8421 }
8422
8423 if (params->vhtcaps && params->vhtcaps_mask) {
8424 int sz = sizeof(struct ieee80211_vht_capabilities);
8425 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps);
8426 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz,
8427 params->vhtcaps_mask);
8428 }
8429 #endif /* CONFIG_VHT_OVERRIDES */
8430
8431 if (params->p2p)
8432 wpa_printf(MSG_DEBUG, " * P2P group");
8433
8434 return 0;
8435 nla_put_failure:
8436 return -1;
8437 }
8438
8439
8440 static int wpa_driver_nl80211_try_connect(
8441 struct wpa_driver_nl80211_data *drv,
8442 struct wpa_driver_associate_params *params)
8443 {
8444 struct nl_msg *msg;
8445 enum nl80211_auth_type type;
8446 int ret;
8447 int algs;
8448
8449 msg = nlmsg_alloc();
8450 if (!msg)
8451 return -1;
8452
8453 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex);
8454 nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT);
8455
8456 ret = nl80211_connect_common(drv, params, msg);
8457 if (ret)
8458 goto nla_put_failure;
8459
8460 algs = 0;
8461 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
8462 algs++;
8463 if (params->auth_alg & WPA_AUTH_ALG_SHARED)
8464 algs++;
8465 if (params->auth_alg & WPA_AUTH_ALG_LEAP)
8466 algs++;
8467 if (algs > 1) {
8468 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic "
8469 "selection");
8470 goto skip_auth_type;
8471 }
8472
8473 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
8474 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
8475 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
8476 type = NL80211_AUTHTYPE_SHARED_KEY;
8477 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
8478 type = NL80211_AUTHTYPE_NETWORK_EAP;
8479 else if (params->auth_alg & WPA_AUTH_ALG_FT)
8480 type = NL80211_AUTHTYPE_FT;
8481 else
8482 goto nla_put_failure;
8483
8484 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
8485 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
8486
8487 skip_auth_type:
8488 ret = nl80211_set_conn_keys(params, msg);
8489 if (ret)
8490 goto nla_put_failure;
8491
8492 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8493 msg = NULL;
8494 if (ret) {
8495 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d "
8496 "(%s)", ret, strerror(-ret));
8497 goto nla_put_failure;
8498 }
8499 ret = 0;
8500 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully");
8501
8502 nla_put_failure:
8503 nlmsg_free(msg);
8504 return ret;
8505
8506 }
8507
8508
8509 static int wpa_driver_nl80211_connect(
8510 struct wpa_driver_nl80211_data *drv,
8511 struct wpa_driver_associate_params *params)
8512 {
8513 int ret = wpa_driver_nl80211_try_connect(drv, params);
8514 if (ret == -EALREADY) {
8515 /*
8516 * cfg80211 does not currently accept new connections if
8517 * we are already connected. As a workaround, force
8518 * disconnection and try again.
8519 */
8520 wpa_printf(MSG_DEBUG, "nl80211: Explicitly "
8521 "disconnecting before reassociation "
8522 "attempt");
8523 if (wpa_driver_nl80211_disconnect(
8524 drv, WLAN_REASON_PREV_AUTH_NOT_VALID))
8525 return -1;
8526 ret = wpa_driver_nl80211_try_connect(drv, params);
8527 }
8528 return ret;
8529 }
8530
8531
8532 static int wpa_driver_nl80211_associate(
8533 void *priv, struct wpa_driver_associate_params *params)
8534 {
8535 struct i802_bss *bss = priv;
8536 struct wpa_driver_nl80211_data *drv = bss->drv;
8537 int ret;
8538 struct nl_msg *msg;
8539
8540 if (params->mode == IEEE80211_MODE_AP)
8541 return wpa_driver_nl80211_ap(drv, params);
8542
8543 if (params->mode == IEEE80211_MODE_IBSS)
8544 return wpa_driver_nl80211_ibss(drv, params);
8545
8546 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) {
8547 enum nl80211_iftype nlmode = params->p2p ?
8548 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
8549
8550 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0)
8551 return -1;
8552 return wpa_driver_nl80211_connect(drv, params);
8553 }
8554
8555 nl80211_mark_disconnected(drv);
8556
8557 msg = nlmsg_alloc();
8558 if (!msg)
8559 return -1;
8560
8561 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)",
8562 drv->ifindex);
8563 nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE);
8564
8565 ret = nl80211_connect_common(drv, params, msg);
8566 if (ret)
8567 goto nla_put_failure;
8568
8569 if (params->prev_bssid) {
8570 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR,
8571 MAC2STR(params->prev_bssid));
8572 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN,
8573 params->prev_bssid);
8574 }
8575
8576 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8577 msg = NULL;
8578 if (ret) {
8579 wpa_dbg(drv->ctx, MSG_DEBUG,
8580 "nl80211: MLME command failed (assoc): ret=%d (%s)",
8581 ret, strerror(-ret));
8582 nl80211_dump_scan(drv);
8583 goto nla_put_failure;
8584 }
8585 ret = 0;
8586 wpa_printf(MSG_DEBUG, "nl80211: Association request send "
8587 "successfully");
8588
8589 nla_put_failure:
8590 nlmsg_free(msg);
8591 return ret;
8592 }
8593
8594
8595 static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv,
8596 int ifindex, enum nl80211_iftype mode)
8597 {
8598 struct nl_msg *msg;
8599 int ret = -ENOBUFS;
8600
8601 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)",
8602 ifindex, mode, nl80211_iftype_str(mode));
8603
8604 msg = nlmsg_alloc();
8605 if (!msg)
8606 return -ENOMEM;
8607
8608 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE);
8609 if (nl80211_set_iface_id(msg, drv->first_bss) < 0)
8610 goto nla_put_failure;
8611 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode);
8612
8613 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8614 msg = NULL;
8615 if (!ret)
8616 return 0;
8617 nla_put_failure:
8618 nlmsg_free(msg);
8619 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:"
8620 " %d (%s)", ifindex, mode, ret, strerror(-ret));
8621 return ret;
8622 }
8623
8624
8625 static int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
8626 enum nl80211_iftype nlmode)
8627 {
8628 struct wpa_driver_nl80211_data *drv = bss->drv;
8629 int ret = -1;
8630 int i;
8631 int was_ap = is_ap_interface(drv->nlmode);
8632 int res;
8633
8634 res = nl80211_set_mode(drv, drv->ifindex, nlmode);
8635 if (res && nlmode == nl80211_get_ifmode(bss))
8636 res = 0;
8637
8638 if (res == 0) {
8639 drv->nlmode = nlmode;
8640 ret = 0;
8641 goto done;
8642 }
8643
8644 if (res == -ENODEV)
8645 return -1;
8646
8647 if (nlmode == drv->nlmode) {
8648 wpa_printf(MSG_DEBUG, "nl80211: Interface already in "
8649 "requested mode - ignore error");
8650 ret = 0;
8651 goto done; /* Already in the requested mode */
8652 }
8653
8654 /* mac80211 doesn't allow mode changes while the device is up, so
8655 * take the device down, try to set the mode again, and bring the
8656 * device back up.
8657 */
8658 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting "
8659 "interface down");
8660 for (i = 0; i < 10; i++) {
8661 res = i802_set_iface_flags(bss, 0);
8662 if (res == -EACCES || res == -ENODEV)
8663 break;
8664 if (res == 0) {
8665 /* Try to set the mode again while the interface is
8666 * down */
8667 ret = nl80211_set_mode(drv, drv->ifindex, nlmode);
8668 if (ret == -EACCES)
8669 break;
8670 res = i802_set_iface_flags(bss, 1);
8671 if (res && !ret)
8672 ret = -1;
8673 else if (ret != -EBUSY)
8674 break;
8675 } else
8676 wpa_printf(MSG_DEBUG, "nl80211: Failed to set "
8677 "interface down");
8678 os_sleep(0, 100000);
8679 }
8680
8681 if (!ret) {
8682 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while "
8683 "interface is down");
8684 drv->nlmode = nlmode;
8685 drv->ignore_if_down_event = 1;
8686 }
8687
8688 done:
8689 if (ret) {
8690 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d "
8691 "from %d failed", nlmode, drv->nlmode);
8692 return ret;
8693 }
8694
8695 if (is_p2p_net_interface(nlmode))
8696 nl80211_disable_11b_rates(drv, drv->ifindex, 1);
8697 else if (drv->disabled_11b_rates)
8698 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
8699
8700 if (is_ap_interface(nlmode)) {
8701 nl80211_mgmt_unsubscribe(bss, "start AP");
8702 /* Setup additional AP mode functionality if needed */
8703 if (nl80211_setup_ap(bss))
8704 return -1;
8705 } else if (was_ap) {
8706 /* Remove additional AP mode functionality */
8707 nl80211_teardown_ap(bss);
8708 } else {
8709 nl80211_mgmt_unsubscribe(bss, "mode change");
8710 }
8711
8712 if (!bss->in_deinit && !is_ap_interface(nlmode) &&
8713 nl80211_mgmt_subscribe_non_ap(bss) < 0)
8714 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action "
8715 "frame processing - ignore for now");
8716
8717 return 0;
8718 }
8719
8720
8721 static int wpa_driver_nl80211_get_capa(void *priv,
8722 struct wpa_driver_capa *capa)
8723 {
8724 struct i802_bss *bss = priv;
8725 struct wpa_driver_nl80211_data *drv = bss->drv;
8726 if (!drv->has_capability)
8727 return -1;
8728 os_memcpy(capa, &drv->capa, sizeof(*capa));
8729 if (drv->extended_capa && drv->extended_capa_mask) {
8730 capa->extended_capa = drv->extended_capa;
8731 capa->extended_capa_mask = drv->extended_capa_mask;
8732 capa->extended_capa_len = drv->extended_capa_len;
8733 }
8734
8735 if ((capa->flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
8736 !drv->allow_p2p_device) {
8737 wpa_printf(MSG_DEBUG, "nl80211: Do not indicate P2P_DEVICE support (p2p_device=1 driver param not specified)");
8738 capa->flags &= ~WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE;
8739 }
8740
8741 return 0;
8742 }
8743
8744
8745 static int wpa_driver_nl80211_set_operstate(void *priv, int state)
8746 {
8747 struct i802_bss *bss = priv;
8748 struct wpa_driver_nl80211_data *drv = bss->drv;
8749
8750 wpa_printf(MSG_DEBUG, "nl80211: Set %s operstate %d->%d (%s)",
8751 bss->ifname, drv->operstate, state,
8752 state ? "UP" : "DORMANT");
8753 drv->operstate = state;
8754 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1,
8755 state ? IF_OPER_UP : IF_OPER_DORMANT);
8756 }
8757
8758
8759 static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized)
8760 {
8761 struct i802_bss *bss = priv;
8762 struct wpa_driver_nl80211_data *drv = bss->drv;
8763 struct nl_msg *msg;
8764 struct nl80211_sta_flag_update upd;
8765 int ret = -ENOBUFS;
8766
8767 if (!drv->associated && is_zero_ether_addr(drv->bssid) && !authorized) {
8768 wpa_printf(MSG_DEBUG, "nl80211: Skip set_supp_port(unauthorized) while not associated");
8769 return 0;
8770 }
8771
8772 wpa_printf(MSG_DEBUG, "nl80211: Set supplicant port %sauthorized for "
8773 MACSTR, authorized ? "" : "un", MAC2STR(drv->bssid));
8774
8775 msg = nlmsg_alloc();
8776 if (!msg)
8777 return -ENOMEM;
8778
8779 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
8780
8781 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
8782 if_nametoindex(bss->ifname));
8783 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
8784
8785 os_memset(&upd, 0, sizeof(upd));
8786 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED);
8787 if (authorized)
8788 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED);
8789 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
8790
8791 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8792 msg = NULL;
8793 if (!ret)
8794 return 0;
8795 nla_put_failure:
8796 nlmsg_free(msg);
8797 wpa_printf(MSG_DEBUG, "nl80211: Failed to set STA flag: %d (%s)",
8798 ret, strerror(-ret));
8799 return ret;
8800 }
8801
8802
8803 /* Set kernel driver on given frequency (MHz) */
8804 static int i802_set_freq(void *priv, struct hostapd_freq_params *freq)
8805 {
8806 struct i802_bss *bss = priv;
8807 return wpa_driver_nl80211_set_freq(bss, freq);
8808 }
8809
8810
8811 static inline int min_int(int a, int b)
8812 {
8813 if (a < b)
8814 return a;
8815 return b;
8816 }
8817
8818
8819 static int get_key_handler(struct nl_msg *msg, void *arg)
8820 {
8821 struct nlattr *tb[NL80211_ATTR_MAX + 1];
8822 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
8823
8824 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
8825 genlmsg_attrlen(gnlh, 0), NULL);
8826
8827 /*
8828 * TODO: validate the key index and mac address!
8829 * Otherwise, there's a race condition as soon as
8830 * the kernel starts sending key notifications.
8831 */
8832
8833 if (tb[NL80211_ATTR_KEY_SEQ])
8834 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]),
8835 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6));
8836 return NL_SKIP;
8837 }
8838
8839
8840 static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
8841 int idx, u8 *seq)
8842 {
8843 struct i802_bss *bss = priv;
8844 struct wpa_driver_nl80211_data *drv = bss->drv;
8845 struct nl_msg *msg;
8846
8847 msg = nlmsg_alloc();
8848 if (!msg)
8849 return -ENOMEM;
8850
8851 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY);
8852
8853 if (addr)
8854 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
8855 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
8856 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
8857
8858 memset(seq, 0, 6);
8859
8860 return send_and_recv_msgs(drv, msg, get_key_handler, seq);
8861 nla_put_failure:
8862 nlmsg_free(msg);
8863 return -ENOBUFS;
8864 }
8865
8866
8867 static int i802_set_rts(void *priv, int rts)
8868 {
8869 struct i802_bss *bss = priv;
8870 struct wpa_driver_nl80211_data *drv = bss->drv;
8871 struct nl_msg *msg;
8872 int ret = -ENOBUFS;
8873 u32 val;
8874
8875 msg = nlmsg_alloc();
8876 if (!msg)
8877 return -ENOMEM;
8878
8879 if (rts >= 2347)
8880 val = (u32) -1;
8881 else
8882 val = rts;
8883
8884 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
8885 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8886 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val);
8887
8888 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8889 msg = NULL;
8890 if (!ret)
8891 return 0;
8892 nla_put_failure:
8893 nlmsg_free(msg);
8894 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: "
8895 "%d (%s)", rts, ret, strerror(-ret));
8896 return ret;
8897 }
8898
8899
8900 static int i802_set_frag(void *priv, int frag)
8901 {
8902 struct i802_bss *bss = priv;
8903 struct wpa_driver_nl80211_data *drv = bss->drv;
8904 struct nl_msg *msg;
8905 int ret = -ENOBUFS;
8906 u32 val;
8907
8908 msg = nlmsg_alloc();
8909 if (!msg)
8910 return -ENOMEM;
8911
8912 if (frag >= 2346)
8913 val = (u32) -1;
8914 else
8915 val = frag;
8916
8917 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
8918 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8919 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val);
8920
8921 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8922 msg = NULL;
8923 if (!ret)
8924 return 0;
8925 nla_put_failure:
8926 nlmsg_free(msg);
8927 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold "
8928 "%d: %d (%s)", frag, ret, strerror(-ret));
8929 return ret;
8930 }
8931
8932
8933 static int i802_flush(void *priv)
8934 {
8935 struct i802_bss *bss = priv;
8936 struct wpa_driver_nl80211_data *drv = bss->drv;
8937 struct nl_msg *msg;
8938 int res;
8939
8940 msg = nlmsg_alloc();
8941 if (!msg)
8942 return -1;
8943
8944 wpa_printf(MSG_DEBUG, "nl80211: flush -> DEL_STATION %s (all)",
8945 bss->ifname);
8946 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION);
8947
8948 /*
8949 * XXX: FIX! this needs to flush all VLANs too
8950 */
8951 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
8952 if_nametoindex(bss->ifname));
8953
8954 res = send_and_recv_msgs(drv, msg, NULL, NULL);
8955 if (res) {
8956 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d "
8957 "(%s)", res, strerror(-res));
8958 }
8959 return res;
8960 nla_put_failure:
8961 nlmsg_free(msg);
8962 return -ENOBUFS;
8963 }
8964
8965
8966 static int get_sta_handler(struct nl_msg *msg, void *arg)
8967 {
8968 struct nlattr *tb[NL80211_ATTR_MAX + 1];
8969 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
8970 struct hostap_sta_driver_data *data = arg;
8971 struct nlattr *stats[NL80211_STA_INFO_MAX + 1];
8972 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
8973 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
8974 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
8975 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
8976 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
8977 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
8978 [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 },
8979 };
8980
8981 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
8982 genlmsg_attrlen(gnlh, 0), NULL);
8983
8984 /*
8985 * TODO: validate the interface and mac address!
8986 * Otherwise, there's a race condition as soon as
8987 * the kernel starts sending station notifications.
8988 */
8989
8990 if (!tb[NL80211_ATTR_STA_INFO]) {
8991 wpa_printf(MSG_DEBUG, "sta stats missing!");
8992 return NL_SKIP;
8993 }
8994 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX,
8995 tb[NL80211_ATTR_STA_INFO],
8996 stats_policy)) {
8997 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!");
8998 return NL_SKIP;
8999 }
9000
9001 if (stats[NL80211_STA_INFO_INACTIVE_TIME])
9002 data->inactive_msec =
9003 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]);
9004 if (stats[NL80211_STA_INFO_RX_BYTES])
9005 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]);
9006 if (stats[NL80211_STA_INFO_TX_BYTES])
9007 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]);
9008 if (stats[NL80211_STA_INFO_RX_PACKETS])
9009 data->rx_packets =
9010 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]);
9011 if (stats[NL80211_STA_INFO_TX_PACKETS])
9012 data->tx_packets =
9013 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]);
9014 if (stats[NL80211_STA_INFO_TX_FAILED])
9015 data->tx_retry_failed =
9016 nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]);
9017
9018 return NL_SKIP;
9019 }
9020
9021 static int i802_read_sta_data(struct i802_bss *bss,
9022 struct hostap_sta_driver_data *data,
9023 const u8 *addr)
9024 {
9025 struct wpa_driver_nl80211_data *drv = bss->drv;
9026 struct nl_msg *msg;
9027
9028 os_memset(data, 0, sizeof(*data));
9029 msg = nlmsg_alloc();
9030 if (!msg)
9031 return -ENOMEM;
9032
9033 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION);
9034
9035 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
9036 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
9037
9038 return send_and_recv_msgs(drv, msg, get_sta_handler, data);
9039 nla_put_failure:
9040 nlmsg_free(msg);
9041 return -ENOBUFS;
9042 }
9043
9044
9045 static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
9046 int cw_min, int cw_max, int burst_time)
9047 {
9048 struct i802_bss *bss = priv;
9049 struct wpa_driver_nl80211_data *drv = bss->drv;
9050 struct nl_msg *msg;
9051 struct nlattr *txq, *params;
9052
9053 msg = nlmsg_alloc();
9054 if (!msg)
9055 return -1;
9056
9057 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
9058
9059 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
9060
9061 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS);
9062 if (!txq)
9063 goto nla_put_failure;
9064
9065 /* We are only sending parameters for a single TXQ at a time */
9066 params = nla_nest_start(msg, 1);
9067 if (!params)
9068 goto nla_put_failure;
9069
9070 switch (queue) {
9071 case 0:
9072 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO);
9073 break;
9074 case 1:
9075 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI);
9076 break;
9077 case 2:
9078 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE);
9079 break;
9080 case 3:
9081 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK);
9082 break;
9083 }
9084 /* Burst time is configured in units of 0.1 msec and TXOP parameter in
9085 * 32 usec, so need to convert the value here. */
9086 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32);
9087 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min);
9088 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max);
9089 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs);
9090
9091 nla_nest_end(msg, params);
9092
9093 nla_nest_end(msg, txq);
9094
9095 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
9096 return 0;
9097 msg = NULL;
9098 nla_put_failure:
9099 nlmsg_free(msg);
9100 return -1;
9101 }
9102
9103
9104 static int i802_set_sta_vlan(struct i802_bss *bss, const u8 *addr,
9105 const char *ifname, int vlan_id)
9106 {
9107 struct wpa_driver_nl80211_data *drv = bss->drv;
9108 struct nl_msg *msg;
9109 int ret = -ENOBUFS;
9110
9111 msg = nlmsg_alloc();
9112 if (!msg)
9113 return -ENOMEM;
9114
9115 wpa_printf(MSG_DEBUG, "nl80211: %s[%d]: set_sta_vlan(" MACSTR
9116 ", ifname=%s[%d], vlan_id=%d)",
9117 bss->ifname, if_nametoindex(bss->ifname),
9118 MAC2STR(addr), ifname, if_nametoindex(ifname), vlan_id);
9119 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
9120
9121 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
9122 if_nametoindex(bss->ifname));
9123 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
9124 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN,
9125 if_nametoindex(ifname));
9126
9127 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
9128 msg = NULL;
9129 if (ret < 0) {
9130 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr="
9131 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)",
9132 MAC2STR(addr), ifname, vlan_id, ret,
9133 strerror(-ret));
9134 }
9135 nla_put_failure:
9136 nlmsg_free(msg);
9137 return ret;
9138 }
9139
9140
9141 static int i802_get_inact_sec(void *priv, const u8 *addr)
9142 {
9143 struct hostap_sta_driver_data data;
9144 int ret;
9145
9146 data.inactive_msec = (unsigned long) -1;
9147 ret = i802_read_sta_data(priv, &data, addr);
9148 if (ret || data.inactive_msec == (unsigned long) -1)
9149 return -1;
9150 return data.inactive_msec / 1000;
9151 }
9152
9153
9154 static int i802_sta_clear_stats(void *priv, const u8 *addr)
9155 {
9156 #if 0
9157 /* TODO */
9158 #endif
9159 return 0;
9160 }
9161
9162
9163 static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
9164 int reason)
9165 {
9166 struct i802_bss *bss = priv;
9167 struct wpa_driver_nl80211_data *drv = bss->drv;
9168 struct ieee80211_mgmt mgmt;
9169
9170 if (drv->device_ap_sme)
9171 return wpa_driver_nl80211_sta_remove(bss, addr);
9172
9173 memset(&mgmt, 0, sizeof(mgmt));
9174 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
9175 WLAN_FC_STYPE_DEAUTH);
9176 memcpy(mgmt.da, addr, ETH_ALEN);
9177 memcpy(mgmt.sa, own_addr, ETH_ALEN);
9178 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
9179 mgmt.u.deauth.reason_code = host_to_le16(reason);
9180 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
9181 IEEE80211_HDRLEN +
9182 sizeof(mgmt.u.deauth), 0, 0, 0, 0,
9183 0);
9184 }
9185
9186
9187 static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
9188 int reason)
9189 {
9190 struct i802_bss *bss = priv;
9191 struct wpa_driver_nl80211_data *drv = bss->drv;
9192 struct ieee80211_mgmt mgmt;
9193
9194 if (drv->device_ap_sme)
9195 return wpa_driver_nl80211_sta_remove(bss, addr);
9196
9197 memset(&mgmt, 0, sizeof(mgmt));
9198 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
9199 WLAN_FC_STYPE_DISASSOC);
9200 memcpy(mgmt.da, addr, ETH_ALEN);
9201 memcpy(mgmt.sa, own_addr, ETH_ALEN);
9202 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
9203 mgmt.u.disassoc.reason_code = host_to_le16(reason);
9204 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
9205 IEEE80211_HDRLEN +
9206 sizeof(mgmt.u.disassoc), 0, 0, 0, 0,
9207 0);
9208 }
9209
9210
9211 static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
9212 {
9213 int i;
9214 int *old;
9215
9216 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d",
9217 ifidx);
9218 for (i = 0; i < drv->num_if_indices; i++) {
9219 if (drv->if_indices[i] == 0) {
9220 drv->if_indices[i] = ifidx;
9221 return;
9222 }
9223 }
9224
9225 if (drv->if_indices != drv->default_if_indices)
9226 old = drv->if_indices;
9227 else
9228 old = NULL;
9229
9230 drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1,
9231 sizeof(int));
9232 if (!drv->if_indices) {
9233 if (!old)
9234 drv->if_indices = drv->default_if_indices;
9235 else
9236 drv->if_indices = old;
9237 wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
9238 "interfaces");
9239 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
9240 return;
9241 } else if (!old)
9242 os_memcpy(drv->if_indices, drv->default_if_indices,
9243 sizeof(drv->default_if_indices));
9244 drv->if_indices[drv->num_if_indices] = ifidx;
9245 drv->num_if_indices++;
9246 }
9247
9248
9249 static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
9250 {
9251 int i;
9252
9253 for (i = 0; i < drv->num_if_indices; i++) {
9254 if (drv->if_indices[i] == ifidx) {
9255 drv->if_indices[i] = 0;
9256 break;
9257 }
9258 }
9259 }
9260
9261
9262 static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
9263 {
9264 int i;
9265
9266 for (i = 0; i < drv->num_if_indices; i++)
9267 if (drv->if_indices[i] == ifidx)
9268 return 1;
9269
9270 return 0;
9271 }
9272
9273
9274 static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val,
9275 const char *bridge_ifname, char *ifname_wds)
9276 {
9277 struct i802_bss *bss = priv;
9278 struct wpa_driver_nl80211_data *drv = bss->drv;
9279 char name[IFNAMSIZ + 1];
9280
9281 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid);
9282 if (ifname_wds)
9283 os_strlcpy(ifname_wds, name, IFNAMSIZ + 1);
9284
9285 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR
9286 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name);
9287 if (val) {
9288 if (!if_nametoindex(name)) {
9289 if (nl80211_create_iface(drv, name,
9290 NL80211_IFTYPE_AP_VLAN,
9291 bss->addr, 1, NULL, NULL, 0) <
9292 0)
9293 return -1;
9294 if (bridge_ifname &&
9295 linux_br_add_if(drv->global->ioctl_sock,
9296 bridge_ifname, name) < 0)
9297 return -1;
9298 }
9299 if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) {
9300 wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA "
9301 "interface %s up", name);
9302 }
9303 return i802_set_sta_vlan(priv, addr, name, 0);
9304 } else {
9305 if (bridge_ifname)
9306 linux_br_del_if(drv->global->ioctl_sock, bridge_ifname,
9307 name);
9308
9309 i802_set_sta_vlan(priv, addr, bss->ifname, 0);
9310 return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN,
9311 name);
9312 }
9313 }
9314
9315
9316 static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
9317 {
9318 struct wpa_driver_nl80211_data *drv = eloop_ctx;
9319 struct sockaddr_ll lladdr;
9320 unsigned char buf[3000];
9321 int len;
9322 socklen_t fromlen = sizeof(lladdr);
9323
9324 len = recvfrom(sock, buf, sizeof(buf), 0,
9325 (struct sockaddr *)&lladdr, &fromlen);
9326 if (len < 0) {
9327 wpa_printf(MSG_ERROR, "nl80211: EAPOL recv failed: %s",
9328 strerror(errno));
9329 return;
9330 }
9331
9332 if (have_ifidx(drv, lladdr.sll_ifindex))
9333 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len);
9334 }
9335
9336
9337 static int i802_check_bridge(struct wpa_driver_nl80211_data *drv,
9338 struct i802_bss *bss,
9339 const char *brname, const char *ifname)
9340 {
9341 int ifindex;
9342 char in_br[IFNAMSIZ];
9343
9344 os_strlcpy(bss->brname, brname, IFNAMSIZ);
9345 ifindex = if_nametoindex(brname);
9346 if (ifindex == 0) {
9347 /*
9348 * Bridge was configured, but the bridge device does
9349 * not exist. Try to add it now.
9350 */
9351 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) {
9352 wpa_printf(MSG_ERROR, "nl80211: Failed to add the "
9353 "bridge interface %s: %s",
9354 brname, strerror(errno));
9355 return -1;
9356 }
9357 bss->added_bridge = 1;
9358 add_ifidx(drv, if_nametoindex(brname));
9359 }
9360
9361 if (linux_br_get(in_br, ifname) == 0) {
9362 if (os_strcmp(in_br, brname) == 0)
9363 return 0; /* already in the bridge */
9364
9365 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from "
9366 "bridge %s", ifname, in_br);
9367 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) <
9368 0) {
9369 wpa_printf(MSG_ERROR, "nl80211: Failed to "
9370 "remove interface %s from bridge "
9371 "%s: %s",
9372 ifname, brname, strerror(errno));
9373 return -1;
9374 }
9375 }
9376
9377 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s",
9378 ifname, brname);
9379 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) {
9380 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s "
9381 "into bridge %s: %s",
9382 ifname, brname, strerror(errno));
9383 return -1;
9384 }
9385 bss->added_if_into_bridge = 1;
9386
9387 return 0;
9388 }
9389
9390
9391 static void *i802_init(struct hostapd_data *hapd,
9392 struct wpa_init_params *params)
9393 {
9394 struct wpa_driver_nl80211_data *drv;
9395 struct i802_bss *bss;
9396 size_t i;
9397 char brname[IFNAMSIZ];
9398 int ifindex, br_ifindex;
9399 int br_added = 0;
9400
9401 bss = wpa_driver_nl80211_drv_init(hapd, params->ifname,
9402 params->global_priv, 1,
9403 params->bssid);
9404 if (bss == NULL)
9405 return NULL;
9406
9407 drv = bss->drv;
9408
9409 if (linux_br_get(brname, params->ifname) == 0) {
9410 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s",
9411 params->ifname, brname);
9412 br_ifindex = if_nametoindex(brname);
9413 } else {
9414 brname[0] = '\0';
9415 br_ifindex = 0;
9416 }
9417
9418 for (i = 0; i < params->num_bridge; i++) {
9419 if (params->bridge[i]) {
9420 ifindex = if_nametoindex(params->bridge[i]);
9421 if (ifindex)
9422 add_ifidx(drv, ifindex);
9423 if (ifindex == br_ifindex)
9424 br_added = 1;
9425 }
9426 }
9427 if (!br_added && br_ifindex &&
9428 (params->num_bridge == 0 || !params->bridge[0]))
9429 add_ifidx(drv, br_ifindex);
9430
9431 /* start listening for EAPOL on the default AP interface */
9432 add_ifidx(drv, drv->ifindex);
9433
9434 if (params->num_bridge && params->bridge[0] &&
9435 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0)
9436 goto failed;
9437
9438 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE));
9439 if (drv->eapol_sock < 0) {
9440 wpa_printf(MSG_ERROR, "nl80211: socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE) failed: %s",
9441 strerror(errno));
9442 goto failed;
9443 }
9444
9445 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL))
9446 {
9447 wpa_printf(MSG_INFO, "nl80211: Could not register read socket for eapol");
9448 goto failed;
9449 }
9450
9451 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
9452 params->own_addr))
9453 goto failed;
9454
9455 memcpy(bss->addr, params->own_addr, ETH_ALEN);
9456
9457 return bss;
9458
9459 failed:
9460 wpa_driver_nl80211_deinit(bss);
9461 return NULL;
9462 }
9463
9464
9465 static void i802_deinit(void *priv)
9466 {
9467 struct i802_bss *bss = priv;
9468 wpa_driver_nl80211_deinit(bss);
9469 }
9470
9471
9472 static enum nl80211_iftype wpa_driver_nl80211_if_type(
9473 enum wpa_driver_if_type type)
9474 {
9475 switch (type) {
9476 case WPA_IF_STATION:
9477 return NL80211_IFTYPE_STATION;
9478 case WPA_IF_P2P_CLIENT:
9479 case WPA_IF_P2P_GROUP:
9480 return NL80211_IFTYPE_P2P_CLIENT;
9481 case WPA_IF_AP_VLAN:
9482 return NL80211_IFTYPE_AP_VLAN;
9483 case WPA_IF_AP_BSS:
9484 return NL80211_IFTYPE_AP;
9485 case WPA_IF_P2P_GO:
9486 return NL80211_IFTYPE_P2P_GO;
9487 case WPA_IF_P2P_DEVICE:
9488 return NL80211_IFTYPE_P2P_DEVICE;
9489 }
9490 return -1;
9491 }
9492
9493
9494 #ifdef CONFIG_P2P
9495
9496 static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr)
9497 {
9498 struct wpa_driver_nl80211_data *drv;
9499 dl_list_for_each(drv, &global->interfaces,
9500 struct wpa_driver_nl80211_data, list) {
9501 if (os_memcmp(addr, drv->first_bss->addr, ETH_ALEN) == 0)
9502 return 1;
9503 }
9504 return 0;
9505 }
9506
9507
9508 static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv,
9509 u8 *new_addr)
9510 {
9511 unsigned int idx;
9512
9513 if (!drv->global)
9514 return -1;
9515
9516 os_memcpy(new_addr, drv->first_bss->addr, ETH_ALEN);
9517 for (idx = 0; idx < 64; idx++) {
9518 new_addr[0] = drv->first_bss->addr[0] | 0x02;
9519 new_addr[0] ^= idx << 2;
9520 if (!nl80211_addr_in_use(drv->global, new_addr))
9521 break;
9522 }
9523 if (idx == 64)
9524 return -1;
9525
9526 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address "
9527 MACSTR, MAC2STR(new_addr));
9528
9529 return 0;
9530 }
9531
9532 #endif /* CONFIG_P2P */
9533
9534
9535 struct wdev_info {
9536 u64 wdev_id;
9537 int wdev_id_set;
9538 u8 macaddr[ETH_ALEN];
9539 };
9540
9541 static int nl80211_wdev_handler(struct nl_msg *msg, void *arg)
9542 {
9543 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
9544 struct nlattr *tb[NL80211_ATTR_MAX + 1];
9545 struct wdev_info *wi = arg;
9546
9547 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
9548 genlmsg_attrlen(gnlh, 0), NULL);
9549 if (tb[NL80211_ATTR_WDEV]) {
9550 wi->wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]);
9551 wi->wdev_id_set = 1;
9552 }
9553
9554 if (tb[NL80211_ATTR_MAC])
9555 os_memcpy(wi->macaddr, nla_data(tb[NL80211_ATTR_MAC]),
9556 ETH_ALEN);
9557
9558 return NL_SKIP;
9559 }
9560
9561
9562 static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type,
9563 const char *ifname, const u8 *addr,
9564 void *bss_ctx, void **drv_priv,
9565 char *force_ifname, u8 *if_addr,
9566 const char *bridge, int use_existing)
9567 {
9568 enum nl80211_iftype nlmode;
9569 struct i802_bss *bss = priv;
9570 struct wpa_driver_nl80211_data *drv = bss->drv;
9571 int ifidx;
9572 int added = 1;
9573
9574 if (addr)
9575 os_memcpy(if_addr, addr, ETH_ALEN);
9576 nlmode = wpa_driver_nl80211_if_type(type);
9577 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) {
9578 struct wdev_info p2pdev_info;
9579
9580 os_memset(&p2pdev_info, 0, sizeof(p2pdev_info));
9581 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr,
9582 0, nl80211_wdev_handler,
9583 &p2pdev_info, use_existing);
9584 if (!p2pdev_info.wdev_id_set || ifidx != 0) {
9585 wpa_printf(MSG_ERROR, "nl80211: Failed to create a P2P Device interface %s",
9586 ifname);
9587 return -1;
9588 }
9589
9590 drv->global->if_add_wdevid = p2pdev_info.wdev_id;
9591 drv->global->if_add_wdevid_set = p2pdev_info.wdev_id_set;
9592 if (!is_zero_ether_addr(p2pdev_info.macaddr))
9593 os_memcpy(if_addr, p2pdev_info.macaddr, ETH_ALEN);
9594 wpa_printf(MSG_DEBUG, "nl80211: New P2P Device interface %s (0x%llx) created",
9595 ifname,
9596 (long long unsigned int) p2pdev_info.wdev_id);
9597 } else {
9598 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr,
9599 0, NULL, NULL, use_existing);
9600 if (use_existing && ifidx == -ENFILE) {
9601 added = 0;
9602 ifidx = if_nametoindex(ifname);
9603 } else if (ifidx < 0) {
9604 return -1;
9605 }
9606 }
9607
9608 if (!addr) {
9609 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE)
9610 os_memcpy(if_addr, bss->addr, ETH_ALEN);
9611 else if (linux_get_ifhwaddr(drv->global->ioctl_sock,
9612 bss->ifname, if_addr) < 0) {
9613 if (added)
9614 nl80211_remove_iface(drv, ifidx);
9615 return -1;
9616 }
9617 }
9618
9619 #ifdef CONFIG_P2P
9620 if (!addr &&
9621 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP ||
9622 type == WPA_IF_P2P_GO)) {
9623 /* Enforce unique P2P Interface Address */
9624 u8 new_addr[ETH_ALEN];
9625
9626 if (linux_get_ifhwaddr(drv->global->ioctl_sock, ifname,
9627 new_addr) < 0) {
9628 nl80211_remove_iface(drv, ifidx);
9629 return -1;
9630 }
9631 if (nl80211_addr_in_use(drv->global, new_addr)) {
9632 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address "
9633 "for P2P group interface");
9634 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) {
9635 nl80211_remove_iface(drv, ifidx);
9636 return -1;
9637 }
9638 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname,
9639 new_addr) < 0) {
9640 nl80211_remove_iface(drv, ifidx);
9641 return -1;
9642 }
9643 }
9644 os_memcpy(if_addr, new_addr, ETH_ALEN);
9645 }
9646 #endif /* CONFIG_P2P */
9647
9648 if (type == WPA_IF_AP_BSS) {
9649 struct i802_bss *new_bss = os_zalloc(sizeof(*new_bss));
9650 if (new_bss == NULL) {
9651 if (added)
9652 nl80211_remove_iface(drv, ifidx);
9653 return -1;
9654 }
9655
9656 if (bridge &&
9657 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) {
9658 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new "
9659 "interface %s to a bridge %s",
9660 ifname, bridge);
9661 if (added)
9662 nl80211_remove_iface(drv, ifidx);
9663 os_free(new_bss);
9664 return -1;
9665 }
9666
9667 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1))
9668 {
9669 nl80211_remove_iface(drv, ifidx);
9670 os_free(new_bss);
9671 return -1;
9672 }
9673 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ);
9674 os_memcpy(new_bss->addr, if_addr, ETH_ALEN);
9675 new_bss->ifindex = ifidx;
9676 new_bss->drv = drv;
9677 new_bss->next = drv->first_bss->next;
9678 new_bss->freq = drv->first_bss->freq;
9679 new_bss->ctx = bss_ctx;
9680 new_bss->added_if = added;
9681 drv->first_bss->next = new_bss;
9682 if (drv_priv)
9683 *drv_priv = new_bss;
9684 nl80211_init_bss(new_bss);
9685
9686 /* Subscribe management frames for this WPA_IF_AP_BSS */
9687 if (nl80211_setup_ap(new_bss))
9688 return -1;
9689 }
9690
9691 if (drv->global)
9692 drv->global->if_add_ifindex = ifidx;
9693
9694 return 0;
9695 }
9696
9697
9698 static int wpa_driver_nl80211_if_remove(struct i802_bss *bss,
9699 enum wpa_driver_if_type type,
9700 const char *ifname)
9701 {
9702 struct wpa_driver_nl80211_data *drv = bss->drv;
9703 int ifindex = if_nametoindex(ifname);
9704
9705 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d added_if=%d",
9706 __func__, type, ifname, ifindex, bss->added_if);
9707 if (ifindex > 0 && (bss->added_if || bss->ifindex != ifindex))
9708 nl80211_remove_iface(drv, ifindex);
9709
9710 if (type != WPA_IF_AP_BSS)
9711 return 0;
9712
9713 if (bss->added_if_into_bridge) {
9714 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname,
9715 bss->ifname) < 0)
9716 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
9717 "interface %s from bridge %s: %s",
9718 bss->ifname, bss->brname, strerror(errno));
9719 }
9720 if (bss->added_bridge) {
9721 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0)
9722 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
9723 "bridge %s: %s",
9724 bss->brname, strerror(errno));
9725 }
9726
9727 if (bss != drv->first_bss) {
9728 struct i802_bss *tbss;
9729
9730 wpa_printf(MSG_DEBUG, "nl80211: Not the first BSS - remove it");
9731 for (tbss = drv->first_bss; tbss; tbss = tbss->next) {
9732 if (tbss->next == bss) {
9733 tbss->next = bss->next;
9734 /* Unsubscribe management frames */
9735 nl80211_teardown_ap(bss);
9736 nl80211_destroy_bss(bss);
9737 os_free(bss);
9738 bss = NULL;
9739 break;
9740 }
9741 }
9742 if (bss)
9743 wpa_printf(MSG_INFO, "nl80211: %s - could not find "
9744 "BSS %p in the list", __func__, bss);
9745 } else {
9746 wpa_printf(MSG_DEBUG, "nl80211: First BSS - reassign context");
9747 nl80211_teardown_ap(bss);
9748 if (!bss->added_if && !drv->first_bss->next)
9749 wpa_driver_nl80211_del_beacon(drv);
9750 nl80211_destroy_bss(bss);
9751 if (!bss->added_if)
9752 i802_set_iface_flags(bss, 0);
9753 if (drv->first_bss->next) {
9754 drv->first_bss = drv->first_bss->next;
9755 drv->ctx = drv->first_bss->ctx;
9756 os_free(bss);
9757 } else {
9758 wpa_printf(MSG_DEBUG, "nl80211: No second BSS to reassign context to");
9759 }
9760 }
9761
9762 return 0;
9763 }
9764
9765
9766 static int cookie_handler(struct nl_msg *msg, void *arg)
9767 {
9768 struct nlattr *tb[NL80211_ATTR_MAX + 1];
9769 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
9770 u64 *cookie = arg;
9771 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
9772 genlmsg_attrlen(gnlh, 0), NULL);
9773 if (tb[NL80211_ATTR_COOKIE])
9774 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
9775 return NL_SKIP;
9776 }
9777
9778
9779 static int nl80211_send_frame_cmd(struct i802_bss *bss,
9780 unsigned int freq, unsigned int wait,
9781 const u8 *buf, size_t buf_len,
9782 u64 *cookie_out, int no_cck, int no_ack,
9783 int offchanok)
9784 {
9785 struct wpa_driver_nl80211_data *drv = bss->drv;
9786 struct nl_msg *msg;
9787 u64 cookie;
9788 int ret = -1;
9789
9790 msg = nlmsg_alloc();
9791 if (!msg)
9792 return -1;
9793
9794 wpa_printf(MSG_MSGDUMP, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d "
9795 "no_ack=%d offchanok=%d",
9796 freq, wait, no_cck, no_ack, offchanok);
9797 wpa_hexdump(MSG_MSGDUMP, "CMD_FRAME", buf, buf_len);
9798 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME);
9799
9800 if (nl80211_set_iface_id(msg, bss) < 0)
9801 goto nla_put_failure;
9802 if (freq)
9803 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
9804 if (wait)
9805 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait);
9806 if (offchanok && (drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX))
9807 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
9808 if (no_cck)
9809 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE);
9810 if (no_ack)
9811 NLA_PUT_FLAG(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK);
9812
9813 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf);
9814
9815 cookie = 0;
9816 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
9817 msg = NULL;
9818 if (ret) {
9819 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d "
9820 "(%s) (freq=%u wait=%u)", ret, strerror(-ret),
9821 freq, wait);
9822 goto nla_put_failure;
9823 }
9824 wpa_printf(MSG_MSGDUMP, "nl80211: Frame TX command accepted%s; "
9825 "cookie 0x%llx", no_ack ? " (no ACK)" : "",
9826 (long long unsigned int) cookie);
9827
9828 if (cookie_out)
9829 *cookie_out = no_ack ? (u64) -1 : cookie;
9830
9831 nla_put_failure:
9832 nlmsg_free(msg);
9833 return ret;
9834 }
9835
9836
9837 static int wpa_driver_nl80211_send_action(struct i802_bss *bss,
9838 unsigned int freq,
9839 unsigned int wait_time,
9840 const u8 *dst, const u8 *src,
9841 const u8 *bssid,
9842 const u8 *data, size_t data_len,
9843 int no_cck)
9844 {
9845 struct wpa_driver_nl80211_data *drv = bss->drv;
9846 int ret = -1;
9847 u8 *buf;
9848 struct ieee80211_hdr *hdr;
9849
9850 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, "
9851 "freq=%u MHz wait=%d ms no_cck=%d)",
9852 drv->ifindex, freq, wait_time, no_cck);
9853
9854 buf = os_zalloc(24 + data_len);
9855 if (buf == NULL)
9856 return ret;
9857 os_memcpy(buf + 24, data, data_len);
9858 hdr = (struct ieee80211_hdr *) buf;
9859 hdr->frame_control =
9860 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION);
9861 os_memcpy(hdr->addr1, dst, ETH_ALEN);
9862 os_memcpy(hdr->addr2, src, ETH_ALEN);
9863 os_memcpy(hdr->addr3, bssid, ETH_ALEN);
9864
9865 if (is_ap_interface(drv->nlmode) &&
9866 (!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) ||
9867 (int) freq == bss->freq || drv->device_ap_sme ||
9868 !drv->use_monitor))
9869 ret = wpa_driver_nl80211_send_mlme(bss, buf, 24 + data_len,
9870 0, freq, no_cck, 1,
9871 wait_time);
9872 else
9873 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf,
9874 24 + data_len,
9875 &drv->send_action_cookie,
9876 no_cck, 0, 1);
9877
9878 os_free(buf);
9879 return ret;
9880 }
9881
9882
9883 static void wpa_driver_nl80211_send_action_cancel_wait(void *priv)
9884 {
9885 struct i802_bss *bss = priv;
9886 struct wpa_driver_nl80211_data *drv = bss->drv;
9887 struct nl_msg *msg;
9888 int ret;
9889
9890 msg = nlmsg_alloc();
9891 if (!msg)
9892 return;
9893
9894 wpa_printf(MSG_DEBUG, "nl80211: Cancel TX frame wait: cookie=0x%llx",
9895 (long long unsigned int) drv->send_action_cookie);
9896 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL);
9897
9898 if (nl80211_set_iface_id(msg, bss) < 0)
9899 goto nla_put_failure;
9900 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie);
9901
9902 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
9903 msg = NULL;
9904 if (ret)
9905 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d "
9906 "(%s)", ret, strerror(-ret));
9907
9908 nla_put_failure:
9909 nlmsg_free(msg);
9910 }
9911
9912
9913 static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq,
9914 unsigned int duration)
9915 {
9916 struct i802_bss *bss = priv;
9917 struct wpa_driver_nl80211_data *drv = bss->drv;
9918 struct nl_msg *msg;
9919 int ret;
9920 u64 cookie;
9921
9922 msg = nlmsg_alloc();
9923 if (!msg)
9924 return -1;
9925
9926 nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL);
9927
9928 if (nl80211_set_iface_id(msg, bss) < 0)
9929 goto nla_put_failure;
9930
9931 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
9932 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
9933
9934 cookie = 0;
9935 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
9936 msg = NULL;
9937 if (ret == 0) {
9938 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie "
9939 "0x%llx for freq=%u MHz duration=%u",
9940 (long long unsigned int) cookie, freq, duration);
9941 drv->remain_on_chan_cookie = cookie;
9942 drv->pending_remain_on_chan = 1;
9943 return 0;
9944 }
9945 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel "
9946 "(freq=%d duration=%u): %d (%s)",
9947 freq, duration, ret, strerror(-ret));
9948 nla_put_failure:
9949 nlmsg_free(msg);
9950 return -1;
9951 }
9952
9953
9954 static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv)
9955 {
9956 struct i802_bss *bss = priv;
9957 struct wpa_driver_nl80211_data *drv = bss->drv;
9958 struct nl_msg *msg;
9959 int ret;
9960
9961 if (!drv->pending_remain_on_chan) {
9962 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel "
9963 "to cancel");
9964 return -1;
9965 }
9966
9967 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie "
9968 "0x%llx",
9969 (long long unsigned int) drv->remain_on_chan_cookie);
9970
9971 msg = nlmsg_alloc();
9972 if (!msg)
9973 return -1;
9974
9975 nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL);
9976
9977 if (nl80211_set_iface_id(msg, bss) < 0)
9978 goto nla_put_failure;
9979
9980 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie);
9981
9982 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
9983 msg = NULL;
9984 if (ret == 0)
9985 return 0;
9986 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: "
9987 "%d (%s)", ret, strerror(-ret));
9988 nla_put_failure:
9989 nlmsg_free(msg);
9990 return -1;
9991 }
9992
9993
9994 static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, int report)
9995 {
9996 struct wpa_driver_nl80211_data *drv = bss->drv;
9997
9998 if (!report) {
9999 if (bss->nl_preq && drv->device_ap_sme &&
10000 is_ap_interface(drv->nlmode)) {
10001 /*
10002 * Do not disable Probe Request reporting that was
10003 * enabled in nl80211_setup_ap().
10004 */
10005 wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of "
10006 "Probe Request reporting nl_preq=%p while "
10007 "in AP mode", bss->nl_preq);
10008 } else if (bss->nl_preq) {
10009 wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request "
10010 "reporting nl_preq=%p", bss->nl_preq);
10011 nl80211_destroy_eloop_handle(&bss->nl_preq);
10012 }
10013 return 0;
10014 }
10015
10016 if (bss->nl_preq) {
10017 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting "
10018 "already on! nl_preq=%p", bss->nl_preq);
10019 return 0;
10020 }
10021
10022 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq");
10023 if (bss->nl_preq == NULL)
10024 return -1;
10025 wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request "
10026 "reporting nl_preq=%p", bss->nl_preq);
10027
10028 if (nl80211_register_frame(bss, bss->nl_preq,
10029 (WLAN_FC_TYPE_MGMT << 2) |
10030 (WLAN_FC_STYPE_PROBE_REQ << 4),
10031 NULL, 0) < 0)
10032 goto out_err;
10033
10034 nl80211_register_eloop_read(&bss->nl_preq,
10035 wpa_driver_nl80211_event_receive,
10036 bss->nl_cb);
10037
10038 return 0;
10039
10040 out_err:
10041 nl_destroy_handles(&bss->nl_preq);
10042 return -1;
10043 }
10044
10045
10046 static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
10047 int ifindex, int disabled)
10048 {
10049 struct nl_msg *msg;
10050 struct nlattr *bands, *band;
10051 int ret;
10052
10053 msg = nlmsg_alloc();
10054 if (!msg)
10055 return -1;
10056
10057 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK);
10058 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
10059
10060 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES);
10061 if (!bands)
10062 goto nla_put_failure;
10063
10064 /*
10065 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything
10066 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS
10067 * rates. All 5 GHz rates are left enabled.
10068 */
10069 band = nla_nest_start(msg, NL80211_BAND_2GHZ);
10070 if (!band)
10071 goto nla_put_failure;
10072 if (disabled) {
10073 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8,
10074 "\x0c\x12\x18\x24\x30\x48\x60\x6c");
10075 }
10076 nla_nest_end(msg, band);
10077
10078 nla_nest_end(msg, bands);
10079
10080 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
10081 msg = NULL;
10082 if (ret) {
10083 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d "
10084 "(%s)", ret, strerror(-ret));
10085 } else
10086 drv->disabled_11b_rates = disabled;
10087
10088 return ret;
10089
10090 nla_put_failure:
10091 nlmsg_free(msg);
10092 return -1;
10093 }
10094
10095
10096 static int wpa_driver_nl80211_deinit_ap(void *priv)
10097 {
10098 struct i802_bss *bss = priv;
10099 struct wpa_driver_nl80211_data *drv = bss->drv;
10100 if (!is_ap_interface(drv->nlmode))
10101 return -1;
10102 wpa_driver_nl80211_del_beacon(drv);
10103
10104 /*
10105 * If the P2P GO interface was dynamically added, then it is
10106 * possible that the interface change to station is not possible.
10107 */
10108 if (drv->nlmode == NL80211_IFTYPE_P2P_GO && bss->if_dynamic)
10109 return 0;
10110
10111 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION);
10112 }
10113
10114
10115 static int wpa_driver_nl80211_stop_ap(void *priv)
10116 {
10117 struct i802_bss *bss = priv;
10118 struct wpa_driver_nl80211_data *drv = bss->drv;
10119 if (!is_ap_interface(drv->nlmode))
10120 return -1;
10121 wpa_driver_nl80211_del_beacon(drv);
10122 bss->beacon_set = 0;
10123 return 0;
10124 }
10125
10126
10127 static int wpa_driver_nl80211_deinit_p2p_cli(void *priv)
10128 {
10129 struct i802_bss *bss = priv;
10130 struct wpa_driver_nl80211_data *drv = bss->drv;
10131 if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT)
10132 return -1;
10133
10134 /*
10135 * If the P2P Client interface was dynamically added, then it is
10136 * possible that the interface change to station is not possible.
10137 */
10138 if (bss->if_dynamic)
10139 return 0;
10140
10141 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION);
10142 }
10143
10144
10145 static void wpa_driver_nl80211_resume(void *priv)
10146 {
10147 struct i802_bss *bss = priv;
10148
10149 if (i802_set_iface_flags(bss, 1))
10150 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on resume event");
10151 }
10152
10153
10154 static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap,
10155 const u8 *ies, size_t ies_len)
10156 {
10157 struct i802_bss *bss = priv;
10158 struct wpa_driver_nl80211_data *drv = bss->drv;
10159 int ret;
10160 u8 *data, *pos;
10161 size_t data_len;
10162 const u8 *own_addr = bss->addr;
10163
10164 if (action != 1) {
10165 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action "
10166 "action %d", action);
10167 return -1;
10168 }
10169
10170 /*
10171 * Action frame payload:
10172 * Category[1] = 6 (Fast BSS Transition)
10173 * Action[1] = 1 (Fast BSS Transition Request)
10174 * STA Address
10175 * Target AP Address
10176 * FT IEs
10177 */
10178
10179 data_len = 2 + 2 * ETH_ALEN + ies_len;
10180 data = os_malloc(data_len);
10181 if (data == NULL)
10182 return -1;
10183 pos = data;
10184 *pos++ = 0x06; /* FT Action category */
10185 *pos++ = action;
10186 os_memcpy(pos, own_addr, ETH_ALEN);
10187 pos += ETH_ALEN;
10188 os_memcpy(pos, target_ap, ETH_ALEN);
10189 pos += ETH_ALEN;
10190 os_memcpy(pos, ies, ies_len);
10191
10192 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0,
10193 drv->bssid, own_addr, drv->bssid,
10194 data, data_len, 0);
10195 os_free(data);
10196
10197 return ret;
10198 }
10199
10200
10201 static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis)
10202 {
10203 struct i802_bss *bss = priv;
10204 struct wpa_driver_nl80211_data *drv = bss->drv;
10205 struct nl_msg *msg;
10206 struct nlattr *cqm;
10207 int ret = -1;
10208
10209 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d "
10210 "hysteresis=%d", threshold, hysteresis);
10211
10212 msg = nlmsg_alloc();
10213 if (!msg)
10214 return -1;
10215
10216 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM);
10217
10218 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
10219
10220 cqm = nla_nest_start(msg, NL80211_ATTR_CQM);
10221 if (cqm == NULL)
10222 goto nla_put_failure;
10223
10224 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THOLD, threshold);
10225 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_HYST, hysteresis);
10226 nla_nest_end(msg, cqm);
10227
10228 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
10229 msg = NULL;
10230
10231 nla_put_failure:
10232 nlmsg_free(msg);
10233 return ret;
10234 }
10235
10236
10237 static int get_channel_width(struct nl_msg *msg, void *arg)
10238 {
10239 struct nlattr *tb[NL80211_ATTR_MAX + 1];
10240 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
10241 struct wpa_signal_info *sig_change = arg;
10242
10243 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
10244 genlmsg_attrlen(gnlh, 0), NULL);
10245
10246 sig_change->center_frq1 = -1;
10247 sig_change->center_frq2 = -1;
10248 sig_change->chanwidth = CHAN_WIDTH_UNKNOWN;
10249
10250 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) {
10251 sig_change->chanwidth = convert2width(
10252 nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH]));
10253 if (tb[NL80211_ATTR_CENTER_FREQ1])
10254 sig_change->center_frq1 =
10255 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]);
10256 if (tb[NL80211_ATTR_CENTER_FREQ2])
10257 sig_change->center_frq2 =
10258 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]);
10259 }
10260
10261 return NL_SKIP;
10262 }
10263
10264
10265 static int nl80211_get_channel_width(struct wpa_driver_nl80211_data *drv,
10266 struct wpa_signal_info *sig)
10267 {
10268 struct nl_msg *msg;
10269
10270 msg = nlmsg_alloc();
10271 if (!msg)
10272 return -ENOMEM;
10273
10274 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_INTERFACE);
10275 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
10276
10277 return send_and_recv_msgs(drv, msg, get_channel_width, sig);
10278
10279 nla_put_failure:
10280 nlmsg_free(msg);
10281 return -ENOBUFS;
10282 }
10283
10284
10285 static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si)
10286 {
10287 struct i802_bss *bss = priv;
10288 struct wpa_driver_nl80211_data *drv = bss->drv;
10289 int res;
10290
10291 os_memset(si, 0, sizeof(*si));
10292 res = nl80211_get_link_signal(drv, si);
10293 if (res != 0)
10294 return res;
10295
10296 res = nl80211_get_channel_width(drv, si);
10297 if (res != 0)
10298 return res;
10299
10300 return nl80211_get_link_noise(drv, si);
10301 }
10302
10303
10304 static int wpa_driver_nl80211_shared_freq(void *priv)
10305 {
10306 struct i802_bss *bss = priv;
10307 struct wpa_driver_nl80211_data *drv = bss->drv;
10308 struct wpa_driver_nl80211_data *driver;
10309 int freq = 0;
10310
10311 /*
10312 * If the same PHY is in connected state with some other interface,
10313 * then retrieve the assoc freq.
10314 */
10315 wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s",
10316 drv->phyname);
10317
10318 dl_list_for_each(driver, &drv->global->interfaces,
10319 struct wpa_driver_nl80211_data, list) {
10320 if (drv == driver ||
10321 os_strcmp(drv->phyname, driver->phyname) != 0 ||
10322 !driver->associated)
10323 continue;
10324
10325 wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s "
10326 MACSTR,
10327 driver->phyname, driver->first_bss->ifname,
10328 MAC2STR(driver->first_bss->addr));
10329 if (is_ap_interface(driver->nlmode))
10330 freq = driver->first_bss->freq;
10331 else
10332 freq = nl80211_get_assoc_freq(driver);
10333 wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d",
10334 drv->phyname, freq);
10335 }
10336
10337 if (!freq)
10338 wpa_printf(MSG_DEBUG, "nl80211: No shared interface for "
10339 "PHY (%s) in associated state", drv->phyname);
10340
10341 return freq;
10342 }
10343
10344
10345 static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len,
10346 int encrypt)
10347 {
10348 struct i802_bss *bss = priv;
10349 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0,
10350 0, 0, 0, 0);
10351 }
10352
10353
10354 static int nl80211_set_param(void *priv, const char *param)
10355 {
10356 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param);
10357 if (param == NULL)
10358 return 0;
10359
10360 #ifdef CONFIG_P2P
10361 if (os_strstr(param, "use_p2p_group_interface=1")) {
10362 struct i802_bss *bss = priv;
10363 struct wpa_driver_nl80211_data *drv = bss->drv;
10364
10365 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
10366 "interface");
10367 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
10368 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
10369 }
10370
10371 if (os_strstr(param, "p2p_device=1")) {
10372 struct i802_bss *bss = priv;
10373 struct wpa_driver_nl80211_data *drv = bss->drv;
10374 drv->allow_p2p_device = 1;
10375 }
10376 #endif /* CONFIG_P2P */
10377
10378 if (os_strstr(param, "use_monitor=1")) {
10379 struct i802_bss *bss = priv;
10380 struct wpa_driver_nl80211_data *drv = bss->drv;
10381 drv->use_monitor = 1;
10382 }
10383
10384 if (os_strstr(param, "force_connect_cmd=1")) {
10385 struct i802_bss *bss = priv;
10386 struct wpa_driver_nl80211_data *drv = bss->drv;
10387 drv->capa.flags &= ~WPA_DRIVER_FLAGS_SME;
10388 }
10389
10390 return 0;
10391 }
10392
10393
10394 static void * nl80211_global_init(void)
10395 {
10396 struct nl80211_global *global;
10397 struct netlink_config *cfg;
10398
10399 global = os_zalloc(sizeof(*global));
10400 if (global == NULL)
10401 return NULL;
10402 global->ioctl_sock = -1;
10403 dl_list_init(&global->interfaces);
10404 global->if_add_ifindex = -1;
10405
10406 cfg = os_zalloc(sizeof(*cfg));
10407 if (cfg == NULL)
10408 goto err;
10409
10410 cfg->ctx = global;
10411 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink;
10412 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink;
10413 global->netlink = netlink_init(cfg);
10414 if (global->netlink == NULL) {
10415 os_free(cfg);
10416 goto err;
10417 }
10418
10419 if (wpa_driver_nl80211_init_nl_global(global) < 0)
10420 goto err;
10421
10422 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
10423 if (global->ioctl_sock < 0) {
10424 wpa_printf(MSG_ERROR, "nl80211: socket(PF_INET,SOCK_DGRAM) failed: %s",
10425 strerror(errno));
10426 goto err;
10427 }
10428
10429 return global;
10430
10431 err:
10432 nl80211_global_deinit(global);
10433 return NULL;
10434 }
10435
10436
10437 static void nl80211_global_deinit(void *priv)
10438 {
10439 struct nl80211_global *global = priv;
10440 if (global == NULL)
10441 return;
10442 if (!dl_list_empty(&global->interfaces)) {
10443 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at "
10444 "nl80211_global_deinit",
10445 dl_list_len(&global->interfaces));
10446 }
10447
10448 if (global->netlink)
10449 netlink_deinit(global->netlink);
10450
10451 nl_destroy_handles(&global->nl);
10452
10453 if (global->nl_event)
10454 nl80211_destroy_eloop_handle(&global->nl_event);
10455
10456 nl_cb_put(global->nl_cb);
10457
10458 if (global->ioctl_sock >= 0)
10459 close(global->ioctl_sock);
10460
10461 os_free(global);
10462 }
10463
10464
10465 static const char * nl80211_get_radio_name(void *priv)
10466 {
10467 struct i802_bss *bss = priv;
10468 struct wpa_driver_nl80211_data *drv = bss->drv;
10469 return drv->phyname;
10470 }
10471
10472
10473 static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid,
10474 const u8 *pmkid)
10475 {
10476 struct nl_msg *msg;
10477
10478 msg = nlmsg_alloc();
10479 if (!msg)
10480 return -ENOMEM;
10481
10482 nl80211_cmd(bss->drv, msg, 0, cmd);
10483
10484 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
10485 if (pmkid)
10486 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid);
10487 if (bssid)
10488 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
10489
10490 return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
10491 nla_put_failure:
10492 nlmsg_free(msg);
10493 return -ENOBUFS;
10494 }
10495
10496
10497 static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid)
10498 {
10499 struct i802_bss *bss = priv;
10500 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid));
10501 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid);
10502 }
10503
10504
10505 static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid)
10506 {
10507 struct i802_bss *bss = priv;
10508 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR,
10509 MAC2STR(bssid));
10510 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid);
10511 }
10512
10513
10514 static int nl80211_flush_pmkid(void *priv)
10515 {
10516 struct i802_bss *bss = priv;
10517 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs");
10518 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL);
10519 }
10520
10521
10522 static void clean_survey_results(struct survey_results *survey_results)
10523 {
10524 struct freq_survey *survey, *tmp;
10525
10526 if (dl_list_empty(&survey_results->survey_list))
10527 return;
10528
10529 dl_list_for_each_safe(survey, tmp, &survey_results->survey_list,
10530 struct freq_survey, list) {
10531 dl_list_del(&survey->list);
10532 os_free(survey);
10533 }
10534 }
10535
10536
10537 static void add_survey(struct nlattr **sinfo, u32 ifidx,
10538 struct dl_list *survey_list)
10539 {
10540 struct freq_survey *survey;
10541
10542 survey = os_zalloc(sizeof(struct freq_survey));
10543 if (!survey)
10544 return;
10545
10546 survey->ifidx = ifidx;
10547 survey->freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]);
10548 survey->filled = 0;
10549
10550 if (sinfo[NL80211_SURVEY_INFO_NOISE]) {
10551 survey->nf = (int8_t)
10552 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
10553 survey->filled |= SURVEY_HAS_NF;
10554 }
10555
10556 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]) {
10557 survey->channel_time =
10558 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]);
10559 survey->filled |= SURVEY_HAS_CHAN_TIME;
10560 }
10561
10562 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]) {
10563 survey->channel_time_busy =
10564 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]);
10565 survey->filled |= SURVEY_HAS_CHAN_TIME_BUSY;
10566 }
10567
10568 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]) {
10569 survey->channel_time_rx =
10570 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]);
10571 survey->filled |= SURVEY_HAS_CHAN_TIME_RX;
10572 }
10573
10574 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]) {
10575 survey->channel_time_tx =
10576 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]);
10577 survey->filled |= SURVEY_HAS_CHAN_TIME_TX;
10578 }
10579
10580 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)",
10581 survey->freq,
10582 survey->nf,
10583 (unsigned long int) survey->channel_time,
10584 (unsigned long int) survey->channel_time_busy,
10585 (unsigned long int) survey->channel_time_tx,
10586 (unsigned long int) survey->channel_time_rx,
10587 survey->filled);
10588
10589 dl_list_add_tail(survey_list, &survey->list);
10590 }
10591
10592
10593 static int check_survey_ok(struct nlattr **sinfo, u32 surveyed_freq,
10594 unsigned int freq_filter)
10595 {
10596 if (!freq_filter)
10597 return 1;
10598
10599 return freq_filter == surveyed_freq;
10600 }
10601
10602
10603 static int survey_handler(struct nl_msg *msg, void *arg)
10604 {
10605 struct nlattr *tb[NL80211_ATTR_MAX + 1];
10606 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
10607 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
10608 struct survey_results *survey_results;
10609 u32 surveyed_freq = 0;
10610 u32 ifidx;
10611
10612 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
10613 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
10614 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
10615 };
10616
10617 survey_results = (struct survey_results *) arg;
10618
10619 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
10620 genlmsg_attrlen(gnlh, 0), NULL);
10621
10622 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
10623
10624 if (!tb[NL80211_ATTR_SURVEY_INFO])
10625 return NL_SKIP;
10626
10627 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
10628 tb[NL80211_ATTR_SURVEY_INFO],
10629 survey_policy))
10630 return NL_SKIP;
10631
10632 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) {
10633 wpa_printf(MSG_ERROR, "nl80211: Invalid survey data");
10634 return NL_SKIP;
10635 }
10636
10637 surveyed_freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]);
10638
10639 if (!check_survey_ok(sinfo, surveyed_freq,
10640 survey_results->freq_filter))
10641 return NL_SKIP;
10642
10643 if (survey_results->freq_filter &&
10644 survey_results->freq_filter != surveyed_freq) {
10645 wpa_printf(MSG_EXCESSIVE, "nl80211: Ignoring survey data for freq %d MHz",
10646 surveyed_freq);
10647 return NL_SKIP;
10648 }
10649
10650 add_survey(sinfo, ifidx, &survey_results->survey_list);
10651
10652 return NL_SKIP;
10653 }
10654
10655
10656 static int wpa_driver_nl80211_get_survey(void *priv, unsigned int freq)
10657 {
10658 struct i802_bss *bss = priv;
10659 struct wpa_driver_nl80211_data *drv = bss->drv;
10660 struct nl_msg *msg;
10661 int err = -ENOBUFS;
10662 union wpa_event_data data;
10663 struct survey_results *survey_results;
10664
10665 os_memset(&data, 0, sizeof(data));
10666 survey_results = &data.survey_results;
10667
10668 dl_list_init(&survey_results->survey_list);
10669
10670 msg = nlmsg_alloc();
10671 if (!msg)
10672 goto nla_put_failure;
10673
10674 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
10675
10676 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
10677
10678 if (freq)
10679 data.survey_results.freq_filter = freq;
10680
10681 do {
10682 wpa_printf(MSG_DEBUG, "nl80211: Fetch survey data");
10683 err = send_and_recv_msgs(drv, msg, survey_handler,
10684 survey_results);
10685 } while (err > 0);
10686
10687 if (err) {
10688 wpa_printf(MSG_ERROR, "nl80211: Failed to process survey data");
10689 goto out_clean;
10690 }
10691
10692 wpa_supplicant_event(drv->ctx, EVENT_SURVEY, &data);
10693
10694 out_clean:
10695 clean_survey_results(survey_results);
10696 nla_put_failure:
10697 return err;
10698 }
10699
10700
10701 static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck,
10702 const u8 *replay_ctr)
10703 {
10704 struct i802_bss *bss = priv;
10705 struct wpa_driver_nl80211_data *drv = bss->drv;
10706 struct nlattr *replay_nested;
10707 struct nl_msg *msg;
10708
10709 msg = nlmsg_alloc();
10710 if (!msg)
10711 return;
10712
10713 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
10714
10715 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
10716
10717 replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
10718 if (!replay_nested)
10719 goto nla_put_failure;
10720
10721 NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek);
10722 NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck);
10723 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN,
10724 replay_ctr);
10725
10726 nla_nest_end(msg, replay_nested);
10727
10728 send_and_recv_msgs(drv, msg, NULL, NULL);
10729 return;
10730 nla_put_failure:
10731 nlmsg_free(msg);
10732 }
10733
10734
10735 static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr,
10736 const u8 *addr, int qos)
10737 {
10738 /* send data frame to poll STA and check whether
10739 * this frame is ACKed */
10740 struct {
10741 struct ieee80211_hdr hdr;
10742 u16 qos_ctl;
10743 } STRUCT_PACKED nulldata;
10744 size_t size;
10745
10746 /* Send data frame to poll STA and check whether this frame is ACKed */
10747
10748 os_memset(&nulldata, 0, sizeof(nulldata));
10749
10750 if (qos) {
10751 nulldata.hdr.frame_control =
10752 IEEE80211_FC(WLAN_FC_TYPE_DATA,
10753 WLAN_FC_STYPE_QOS_NULL);
10754 size = sizeof(nulldata);
10755 } else {
10756 nulldata.hdr.frame_control =
10757 IEEE80211_FC(WLAN_FC_TYPE_DATA,
10758 WLAN_FC_STYPE_NULLFUNC);
10759 size = sizeof(struct ieee80211_hdr);
10760 }
10761
10762 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS);
10763 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN);
10764 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
10765 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
10766
10767 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0, 0, 0,
10768 0, 0) < 0)
10769 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to "
10770 "send poll frame");
10771 }
10772
10773 static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr,
10774 int qos)
10775 {
10776 struct i802_bss *bss = priv;
10777 struct wpa_driver_nl80211_data *drv = bss->drv;
10778 struct nl_msg *msg;
10779
10780 if (!drv->poll_command_supported) {
10781 nl80211_send_null_frame(bss, own_addr, addr, qos);
10782 return;
10783 }
10784
10785 msg = nlmsg_alloc();
10786 if (!msg)
10787 return;
10788
10789 nl80211_cmd(drv, msg, 0, NL80211_CMD_PROBE_CLIENT);
10790
10791 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
10792 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
10793
10794 send_and_recv_msgs(drv, msg, NULL, NULL);
10795 return;
10796 nla_put_failure:
10797 nlmsg_free(msg);
10798 }
10799
10800
10801 static int nl80211_set_power_save(struct i802_bss *bss, int enabled)
10802 {
10803 struct nl_msg *msg;
10804
10805 msg = nlmsg_alloc();
10806 if (!msg)
10807 return -ENOMEM;
10808
10809 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_SET_POWER_SAVE);
10810 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
10811 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE,
10812 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED);
10813 return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
10814 nla_put_failure:
10815 nlmsg_free(msg);
10816 return -ENOBUFS;
10817 }
10818
10819
10820 static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps,
10821 int ctwindow)
10822 {
10823 struct i802_bss *bss = priv;
10824
10825 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d "
10826 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow);
10827
10828 if (opp_ps != -1 || ctwindow != -1) {
10829 #ifdef ANDROID_P2P
10830 wpa_driver_set_p2p_ps(priv, legacy_ps, opp_ps, ctwindow);
10831 #else /* ANDROID_P2P */
10832 return -1; /* Not yet supported */
10833 #endif /* ANDROID_P2P */
10834 }
10835
10836 if (legacy_ps == -1)
10837 return 0;
10838 if (legacy_ps != 0 && legacy_ps != 1)
10839 return -1; /* Not yet supported */
10840
10841 return nl80211_set_power_save(bss, legacy_ps);
10842 }
10843
10844
10845 static int nl80211_start_radar_detection(void *priv,
10846 struct hostapd_freq_params *freq)
10847 {
10848 struct i802_bss *bss = priv;
10849 struct wpa_driver_nl80211_data *drv = bss->drv;
10850 struct nl_msg *msg;
10851 int ret;
10852
10853 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)",
10854 freq->freq, freq->ht_enabled, freq->vht_enabled,
10855 freq->bandwidth, freq->center_freq1, freq->center_freq2);
10856
10857 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_RADAR)) {
10858 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support radar "
10859 "detection");
10860 return -1;
10861 }
10862
10863 msg = nlmsg_alloc();
10864 if (!msg)
10865 return -1;
10866
10867 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_RADAR_DETECT);
10868 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
10869 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq);
10870
10871 if (freq->vht_enabled) {
10872 switch (freq->bandwidth) {
10873 case 20:
10874 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
10875 NL80211_CHAN_WIDTH_20);
10876 break;
10877 case 40:
10878 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
10879 NL80211_CHAN_WIDTH_40);
10880 break;
10881 case 80:
10882 if (freq->center_freq2)
10883 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
10884 NL80211_CHAN_WIDTH_80P80);
10885 else
10886 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
10887 NL80211_CHAN_WIDTH_80);
10888 break;
10889 case 160:
10890 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
10891 NL80211_CHAN_WIDTH_160);
10892 break;
10893 default:
10894 return -1;
10895 }
10896 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1);
10897 if (freq->center_freq2)
10898 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2,
10899 freq->center_freq2);
10900 } else if (freq->ht_enabled) {
10901 switch (freq->sec_channel_offset) {
10902 case -1:
10903 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
10904 NL80211_CHAN_HT40MINUS);
10905 break;
10906 case 1:
10907 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
10908 NL80211_CHAN_HT40PLUS);
10909 break;
10910 default:
10911 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
10912 NL80211_CHAN_HT20);
10913 break;
10914 }
10915 }
10916
10917 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
10918 if (ret == 0)
10919 return 0;
10920 wpa_printf(MSG_DEBUG, "nl80211: Failed to start radar detection: "
10921 "%d (%s)", ret, strerror(-ret));
10922 nla_put_failure:
10923 return -1;
10924 }
10925
10926 #ifdef CONFIG_TDLS
10927
10928 static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code,
10929 u8 dialog_token, u16 status_code,
10930 const u8 *buf, size_t len)
10931 {
10932 struct i802_bss *bss = priv;
10933 struct wpa_driver_nl80211_data *drv = bss->drv;
10934 struct nl_msg *msg;
10935
10936 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
10937 return -EOPNOTSUPP;
10938
10939 if (!dst)
10940 return -EINVAL;
10941
10942 msg = nlmsg_alloc();
10943 if (!msg)
10944 return -ENOMEM;
10945
10946 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT);
10947 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
10948 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
10949 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code);
10950 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token);
10951 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code);
10952 NLA_PUT(msg, NL80211_ATTR_IE, len, buf);
10953
10954 return send_and_recv_msgs(drv, msg, NULL, NULL);
10955
10956 nla_put_failure:
10957 nlmsg_free(msg);
10958 return -ENOBUFS;
10959 }
10960
10961
10962 static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer)
10963 {
10964 struct i802_bss *bss = priv;
10965 struct wpa_driver_nl80211_data *drv = bss->drv;
10966 struct nl_msg *msg;
10967 enum nl80211_tdls_operation nl80211_oper;
10968
10969 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
10970 return -EOPNOTSUPP;
10971
10972 switch (oper) {
10973 case TDLS_DISCOVERY_REQ:
10974 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ;
10975 break;
10976 case TDLS_SETUP:
10977 nl80211_oper = NL80211_TDLS_SETUP;
10978 break;
10979 case TDLS_TEARDOWN:
10980 nl80211_oper = NL80211_TDLS_TEARDOWN;
10981 break;
10982 case TDLS_ENABLE_LINK:
10983 nl80211_oper = NL80211_TDLS_ENABLE_LINK;
10984 break;
10985 case TDLS_DISABLE_LINK:
10986 nl80211_oper = NL80211_TDLS_DISABLE_LINK;
10987 break;
10988 case TDLS_ENABLE:
10989 return 0;
10990 case TDLS_DISABLE:
10991 return 0;
10992 default:
10993 return -EINVAL;
10994 }
10995
10996 msg = nlmsg_alloc();
10997 if (!msg)
10998 return -ENOMEM;
10999
11000 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER);
11001 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper);
11002 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
11003 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
11004
11005 return send_and_recv_msgs(drv, msg, NULL, NULL);
11006
11007 nla_put_failure:
11008 nlmsg_free(msg);
11009 return -ENOBUFS;
11010 }
11011
11012 #endif /* CONFIG TDLS */
11013
11014
11015 #ifdef ANDROID
11016
11017 typedef struct android_wifi_priv_cmd {
11018 char *buf;
11019 int used_len;
11020 int total_len;
11021 } android_wifi_priv_cmd;
11022
11023 static int drv_errors = 0;
11024
11025 static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv)
11026 {
11027 drv_errors++;
11028 if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) {
11029 drv_errors = 0;
11030 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED");
11031 }
11032 }
11033
11034
11035 static int android_priv_cmd(struct i802_bss *bss, const char *cmd)
11036 {
11037 struct wpa_driver_nl80211_data *drv = bss->drv;
11038 struct ifreq ifr;
11039 android_wifi_priv_cmd priv_cmd;
11040 char buf[MAX_DRV_CMD_SIZE];
11041 int ret;
11042
11043 os_memset(&ifr, 0, sizeof(ifr));
11044 os_memset(&priv_cmd, 0, sizeof(priv_cmd));
11045 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ);
11046
11047 os_memset(buf, 0, sizeof(buf));
11048 os_strlcpy(buf, cmd, sizeof(buf));
11049
11050 priv_cmd.buf = buf;
11051 priv_cmd.used_len = sizeof(buf);
11052 priv_cmd.total_len = sizeof(buf);
11053 ifr.ifr_data = &priv_cmd;
11054
11055 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr);
11056 if (ret < 0) {
11057 wpa_printf(MSG_ERROR, "%s: failed to issue private commands",
11058 __func__);
11059 wpa_driver_send_hang_msg(drv);
11060 return ret;
11061 }
11062
11063 drv_errors = 0;
11064 return 0;
11065 }
11066
11067
11068 static int android_pno_start(struct i802_bss *bss,
11069 struct wpa_driver_scan_params *params)
11070 {
11071 struct wpa_driver_nl80211_data *drv = bss->drv;
11072 struct ifreq ifr;
11073 android_wifi_priv_cmd priv_cmd;
11074 int ret = 0, i = 0, bp;
11075 char buf[WEXT_PNO_MAX_COMMAND_SIZE];
11076
11077 bp = WEXT_PNOSETUP_HEADER_SIZE;
11078 os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp);
11079 buf[bp++] = WEXT_PNO_TLV_PREFIX;
11080 buf[bp++] = WEXT_PNO_TLV_VERSION;
11081 buf[bp++] = WEXT_PNO_TLV_SUBVERSION;
11082 buf[bp++] = WEXT_PNO_TLV_RESERVED;
11083
11084 while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) {
11085 /* Check that there is enough space needed for 1 more SSID, the
11086 * other sections and null termination */
11087 if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN +
11088 WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf))
11089 break;
11090 wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan",
11091 params->ssids[i].ssid,
11092 params->ssids[i].ssid_len);
11093 buf[bp++] = WEXT_PNO_SSID_SECTION;
11094 buf[bp++] = params->ssids[i].ssid_len;
11095 os_memcpy(&buf[bp], params->ssids[i].ssid,
11096 params->ssids[i].ssid_len);
11097 bp += params->ssids[i].ssid_len;
11098 i++;
11099 }
11100
11101 buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION;
11102 os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x",
11103 WEXT_PNO_SCAN_INTERVAL);
11104 bp += WEXT_PNO_SCAN_INTERVAL_LENGTH;
11105
11106 buf[bp++] = WEXT_PNO_REPEAT_SECTION;
11107 os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x",
11108 WEXT_PNO_REPEAT);
11109 bp += WEXT_PNO_REPEAT_LENGTH;
11110
11111 buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION;
11112 os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x",
11113 WEXT_PNO_MAX_REPEAT);
11114 bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1;
11115
11116 memset(&ifr, 0, sizeof(ifr));
11117 memset(&priv_cmd, 0, sizeof(priv_cmd));
11118 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ);
11119
11120 priv_cmd.buf = buf;
11121 priv_cmd.used_len = bp;
11122 priv_cmd.total_len = bp;
11123 ifr.ifr_data = &priv_cmd;
11124
11125 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr);
11126
11127 if (ret < 0) {
11128 wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d",
11129 ret);
11130 wpa_driver_send_hang_msg(drv);
11131 return ret;
11132 }
11133
11134 drv_errors = 0;
11135
11136 return android_priv_cmd(bss, "PNOFORCE 1");
11137 }
11138
11139
11140 static int android_pno_stop(struct i802_bss *bss)
11141 {
11142 return android_priv_cmd(bss, "PNOFORCE 0");
11143 }
11144
11145 #endif /* ANDROID */
11146
11147
11148 static int driver_nl80211_set_key(const char *ifname, void *priv,
11149 enum wpa_alg alg, const u8 *addr,
11150 int key_idx, int set_tx,
11151 const u8 *seq, size_t seq_len,
11152 const u8 *key, size_t key_len)
11153 {
11154 struct i802_bss *bss = priv;
11155 return wpa_driver_nl80211_set_key(ifname, bss, alg, addr, key_idx,
11156 set_tx, seq, seq_len, key, key_len);
11157 }
11158
11159
11160 static int driver_nl80211_scan2(void *priv,
11161 struct wpa_driver_scan_params *params)
11162 {
11163 struct i802_bss *bss = priv;
11164 return wpa_driver_nl80211_scan(bss, params);
11165 }
11166
11167
11168 static int driver_nl80211_deauthenticate(void *priv, const u8 *addr,
11169 int reason_code)
11170 {
11171 struct i802_bss *bss = priv;
11172 return wpa_driver_nl80211_deauthenticate(bss, addr, reason_code);
11173 }
11174
11175
11176 static int driver_nl80211_authenticate(void *priv,
11177 struct wpa_driver_auth_params *params)
11178 {
11179 struct i802_bss *bss = priv;
11180 return wpa_driver_nl80211_authenticate(bss, params);
11181 }
11182
11183
11184 static void driver_nl80211_deinit(void *priv)
11185 {
11186 struct i802_bss *bss = priv;
11187 wpa_driver_nl80211_deinit(bss);
11188 }
11189
11190
11191 static int driver_nl80211_if_remove(void *priv, enum wpa_driver_if_type type,
11192 const char *ifname)
11193 {
11194 struct i802_bss *bss = priv;
11195 return wpa_driver_nl80211_if_remove(bss, type, ifname);
11196 }
11197
11198
11199 static int driver_nl80211_send_mlme(void *priv, const u8 *data,
11200 size_t data_len, int noack)
11201 {
11202 struct i802_bss *bss = priv;
11203 return wpa_driver_nl80211_send_mlme(bss, data, data_len, noack,
11204 0, 0, 0, 0);
11205 }
11206
11207
11208 static int driver_nl80211_sta_remove(void *priv, const u8 *addr)
11209 {
11210 struct i802_bss *bss = priv;
11211 return wpa_driver_nl80211_sta_remove(bss, addr);
11212 }
11213
11214
11215 static int driver_nl80211_set_sta_vlan(void *priv, const u8 *addr,
11216 const char *ifname, int vlan_id)
11217 {
11218 struct i802_bss *bss = priv;
11219 return i802_set_sta_vlan(bss, addr, ifname, vlan_id);
11220 }
11221
11222
11223 static int driver_nl80211_read_sta_data(void *priv,
11224 struct hostap_sta_driver_data *data,
11225 const u8 *addr)
11226 {
11227 struct i802_bss *bss = priv;
11228 return i802_read_sta_data(bss, data, addr);
11229 }
11230
11231
11232 static int driver_nl80211_send_action(void *priv, unsigned int freq,
11233 unsigned int wait_time,
11234 const u8 *dst, const u8 *src,
11235 const u8 *bssid,
11236 const u8 *data, size_t data_len,
11237 int no_cck)
11238 {
11239 struct i802_bss *bss = priv;
11240 return wpa_driver_nl80211_send_action(bss, freq, wait_time, dst, src,
11241 bssid, data, data_len, no_cck);
11242 }
11243
11244
11245 static int driver_nl80211_probe_req_report(void *priv, int report)
11246 {
11247 struct i802_bss *bss = priv;
11248 return wpa_driver_nl80211_probe_req_report(bss, report);
11249 }
11250
11251
11252 static int wpa_driver_nl80211_update_ft_ies(void *priv, const u8 *md,
11253 const u8 *ies, size_t ies_len)
11254 {
11255 int ret;
11256 struct nl_msg *msg;
11257 struct i802_bss *bss = priv;
11258 struct wpa_driver_nl80211_data *drv = bss->drv;
11259 u16 mdid = WPA_GET_LE16(md);
11260
11261 msg = nlmsg_alloc();
11262 if (!msg)
11263 return -ENOMEM;
11264
11265 wpa_printf(MSG_DEBUG, "nl80211: Updating FT IEs");
11266 nl80211_cmd(drv, msg, 0, NL80211_CMD_UPDATE_FT_IES);
11267 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
11268 NLA_PUT(msg, NL80211_ATTR_IE, ies_len, ies);
11269 NLA_PUT_U16(msg, NL80211_ATTR_MDID, mdid);
11270
11271 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
11272 if (ret) {
11273 wpa_printf(MSG_DEBUG, "nl80211: update_ft_ies failed "
11274 "err=%d (%s)", ret, strerror(-ret));
11275 }
11276
11277 return ret;
11278
11279 nla_put_failure:
11280 nlmsg_free(msg);
11281 return -ENOBUFS;
11282 }
11283
11284
11285 const u8 * wpa_driver_nl80211_get_macaddr(void *priv)
11286 {
11287 struct i802_bss *bss = priv;
11288 struct wpa_driver_nl80211_data *drv = bss->drv;
11289
11290 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE)
11291 return NULL;
11292
11293 return bss->addr;
11294 }
11295
11296
11297 static const char * scan_state_str(enum scan_states scan_state)
11298 {
11299 switch (scan_state) {
11300 case NO_SCAN:
11301 return "NO_SCAN";
11302 case SCAN_REQUESTED:
11303 return "SCAN_REQUESTED";
11304 case SCAN_STARTED:
11305 return "SCAN_STARTED";
11306 case SCAN_COMPLETED:
11307 return "SCAN_COMPLETED";
11308 case SCAN_ABORTED:
11309 return "SCAN_ABORTED";
11310 case SCHED_SCAN_STARTED:
11311 return "SCHED_SCAN_STARTED";
11312 case SCHED_SCAN_STOPPED:
11313 return "SCHED_SCAN_STOPPED";
11314 case SCHED_SCAN_RESULTS:
11315 return "SCHED_SCAN_RESULTS";
11316 }
11317
11318 return "??";
11319 }
11320
11321
11322 static int wpa_driver_nl80211_status(void *priv, char *buf, size_t buflen)
11323 {
11324 struct i802_bss *bss = priv;
11325 struct wpa_driver_nl80211_data *drv = bss->drv;
11326 int res;
11327 char *pos, *end;
11328
11329 pos = buf;
11330 end = buf + buflen;
11331
11332 res = os_snprintf(pos, end - pos,
11333 "ifindex=%d\n"
11334 "ifname=%s\n"
11335 "brname=%s\n"
11336 "addr=" MACSTR "\n"
11337 "freq=%d\n"
11338 "%s%s%s%s%s",
11339 bss->ifindex,
11340 bss->ifname,
11341 bss->brname,
11342 MAC2STR(bss->addr),
11343 bss->freq,
11344 bss->beacon_set ? "beacon_set=1\n" : "",
11345 bss->added_if_into_bridge ?
11346 "added_if_into_bridge=1\n" : "",
11347 bss->added_bridge ? "added_bridge=1\n" : "",
11348 bss->in_deinit ? "in_deinit=1\n" : "",
11349 bss->if_dynamic ? "if_dynamic=1\n" : "");
11350 if (res < 0 || res >= end - pos)
11351 return pos - buf;
11352 pos += res;
11353
11354 if (bss->wdev_id_set) {
11355 res = os_snprintf(pos, end - pos, "wdev_id=%llu\n",
11356 (unsigned long long) bss->wdev_id);
11357 if (res < 0 || res >= end - pos)
11358 return pos - buf;
11359 pos += res;
11360 }
11361
11362 res = os_snprintf(pos, end - pos,
11363 "phyname=%s\n"
11364 "drv_ifindex=%d\n"
11365 "operstate=%d\n"
11366 "scan_state=%s\n"
11367 "auth_bssid=" MACSTR "\n"
11368 "auth_attempt_bssid=" MACSTR "\n"
11369 "bssid=" MACSTR "\n"
11370 "prev_bssid=" MACSTR "\n"
11371 "associated=%d\n"
11372 "assoc_freq=%u\n"
11373 "monitor_sock=%d\n"
11374 "monitor_ifidx=%d\n"
11375 "monitor_refcount=%d\n"
11376 "last_mgmt_freq=%u\n"
11377 "eapol_tx_sock=%d\n"
11378 "%s%s%s%s%s%s%s%s%s%s%s%s%s",
11379 drv->phyname,
11380 drv->ifindex,
11381 drv->operstate,
11382 scan_state_str(drv->scan_state),
11383 MAC2STR(drv->auth_bssid),
11384 MAC2STR(drv->auth_attempt_bssid),
11385 MAC2STR(drv->bssid),
11386 MAC2STR(drv->prev_bssid),
11387 drv->associated,
11388 drv->assoc_freq,
11389 drv->monitor_sock,
11390 drv->monitor_ifidx,
11391 drv->monitor_refcount,
11392 drv->last_mgmt_freq,
11393 drv->eapol_tx_sock,
11394 drv->ignore_if_down_event ?
11395 "ignore_if_down_event=1\n" : "",
11396 drv->scan_complete_events ?
11397 "scan_complete_events=1\n" : "",
11398 drv->disabled_11b_rates ?
11399 "disabled_11b_rates=1\n" : "",
11400 drv->pending_remain_on_chan ?
11401 "pending_remain_on_chan=1\n" : "",
11402 drv->in_interface_list ? "in_interface_list=1\n" : "",
11403 drv->device_ap_sme ? "device_ap_sme=1\n" : "",
11404 drv->poll_command_supported ?
11405 "poll_command_supported=1\n" : "",
11406 drv->data_tx_status ? "data_tx_status=1\n" : "",
11407 drv->scan_for_auth ? "scan_for_auth=1\n" : "",
11408 drv->retry_auth ? "retry_auth=1\n" : "",
11409 drv->use_monitor ? "use_monitor=1\n" : "",
11410 drv->ignore_next_local_disconnect ?
11411 "ignore_next_local_disconnect=1\n" : "",
11412 drv->allow_p2p_device ? "allow_p2p_device=1\n" : "");
11413 if (res < 0 || res >= end - pos)
11414 return pos - buf;
11415 pos += res;
11416
11417 if (drv->has_capability) {
11418 res = os_snprintf(pos, end - pos,
11419 "capa.key_mgmt=0x%x\n"
11420 "capa.enc=0x%x\n"
11421 "capa.auth=0x%x\n"
11422 "capa.flags=0x%x\n"
11423 "capa.max_scan_ssids=%d\n"
11424 "capa.max_sched_scan_ssids=%d\n"
11425 "capa.sched_scan_supported=%d\n"
11426 "capa.max_match_sets=%d\n"
11427 "capa.max_remain_on_chan=%u\n"
11428 "capa.max_stations=%u\n"
11429 "capa.probe_resp_offloads=0x%x\n"
11430 "capa.max_acl_mac_addrs=%u\n"
11431 "capa.num_multichan_concurrent=%u\n",
11432 drv->capa.key_mgmt,
11433 drv->capa.enc,
11434 drv->capa.auth,
11435 drv->capa.flags,
11436 drv->capa.max_scan_ssids,
11437 drv->capa.max_sched_scan_ssids,
11438 drv->capa.sched_scan_supported,
11439 drv->capa.max_match_sets,
11440 drv->capa.max_remain_on_chan,
11441 drv->capa.max_stations,
11442 drv->capa.probe_resp_offloads,
11443 drv->capa.max_acl_mac_addrs,
11444 drv->capa.num_multichan_concurrent);
11445 if (res < 0 || res >= end - pos)
11446 return pos - buf;
11447 pos += res;
11448 }
11449
11450 return pos - buf;
11451 }
11452
11453
11454 static int set_beacon_data(struct nl_msg *msg, struct beacon_data *settings)
11455 {
11456 if (settings->head)
11457 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD,
11458 settings->head_len, settings->head);
11459
11460 if (settings->tail)
11461 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL,
11462 settings->tail_len, settings->tail);
11463
11464 if (settings->beacon_ies)
11465 NLA_PUT(msg, NL80211_ATTR_IE,
11466 settings->beacon_ies_len, settings->beacon_ies);
11467
11468 if (settings->proberesp_ies)
11469 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP,
11470 settings->proberesp_ies_len, settings->proberesp_ies);
11471
11472 if (settings->assocresp_ies)
11473 NLA_PUT(msg,
11474 NL80211_ATTR_IE_ASSOC_RESP,
11475 settings->assocresp_ies_len, settings->assocresp_ies);
11476
11477 if (settings->probe_resp)
11478 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP,
11479 settings->probe_resp_len, settings->probe_resp);
11480
11481 return 0;
11482
11483 nla_put_failure:
11484 return -ENOBUFS;
11485 }
11486
11487
11488 static int nl80211_switch_channel(void *priv, struct csa_settings *settings)
11489 {
11490 struct nl_msg *msg;
11491 struct i802_bss *bss = priv;
11492 struct wpa_driver_nl80211_data *drv = bss->drv;
11493 struct nlattr *beacon_csa;
11494 int ret = -ENOBUFS;
11495
11496 wpa_printf(MSG_DEBUG, "nl80211: Channel switch request (cs_count=%u block_tx=%u freq=%d width=%d cf1=%d cf2=%d)",
11497 settings->cs_count, settings->block_tx,
11498 settings->freq_params.freq, settings->freq_params.bandwidth,
11499 settings->freq_params.center_freq1,
11500 settings->freq_params.center_freq2);
11501
11502 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_AP_CSA)) {
11503 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support channel switch command");
11504 return -EOPNOTSUPP;
11505 }
11506
11507 if ((drv->nlmode != NL80211_IFTYPE_AP) &&
11508 (drv->nlmode != NL80211_IFTYPE_P2P_GO))
11509 return -EOPNOTSUPP;
11510
11511 /* check settings validity */
11512 if (!settings->beacon_csa.tail ||
11513 ((settings->beacon_csa.tail_len <=
11514 settings->counter_offset_beacon) ||
11515 (settings->beacon_csa.tail[settings->counter_offset_beacon] !=
11516 settings->cs_count)))
11517 return -EINVAL;
11518
11519 if (settings->beacon_csa.probe_resp &&
11520 ((settings->beacon_csa.probe_resp_len <=
11521 settings->counter_offset_presp) ||
11522 (settings->beacon_csa.probe_resp[settings->counter_offset_presp] !=
11523 settings->cs_count)))
11524 return -EINVAL;
11525
11526 msg = nlmsg_alloc();
11527 if (!msg)
11528 return -ENOMEM;
11529
11530 nl80211_cmd(drv, msg, 0, NL80211_CMD_CHANNEL_SWITCH);
11531 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
11532 NLA_PUT_U32(msg, NL80211_ATTR_CH_SWITCH_COUNT, settings->cs_count);
11533 ret = nl80211_put_freq_params(msg, &settings->freq_params);
11534 if (ret)
11535 goto error;
11536
11537 if (settings->block_tx)
11538 NLA_PUT_FLAG(msg, NL80211_ATTR_CH_SWITCH_BLOCK_TX);
11539
11540 /* beacon_after params */
11541 ret = set_beacon_data(msg, &settings->beacon_after);
11542 if (ret)
11543 goto error;
11544
11545 /* beacon_csa params */
11546 beacon_csa = nla_nest_start(msg, NL80211_ATTR_CSA_IES);
11547 if (!beacon_csa)
11548 goto nla_put_failure;
11549
11550 ret = set_beacon_data(msg, &settings->beacon_csa);
11551 if (ret)
11552 goto error;
11553
11554 NLA_PUT_U16(msg, NL80211_ATTR_CSA_C_OFF_BEACON,
11555 settings->counter_offset_beacon);
11556
11557 if (settings->beacon_csa.probe_resp)
11558 NLA_PUT_U16(msg, NL80211_ATTR_CSA_C_OFF_PRESP,
11559 settings->counter_offset_presp);
11560
11561 nla_nest_end(msg, beacon_csa);
11562 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
11563 if (ret) {
11564 wpa_printf(MSG_DEBUG, "nl80211: switch_channel failed err=%d (%s)",
11565 ret, strerror(-ret));
11566 }
11567 return ret;
11568
11569 nla_put_failure:
11570 ret = -ENOBUFS;
11571 error:
11572 nlmsg_free(msg);
11573 wpa_printf(MSG_DEBUG, "nl80211: Could not build channel switch request");
11574 return ret;
11575 }
11576
11577
11578 static int nl80211_set_qos_map(void *priv, const u8 *qos_map_set,
11579 u8 qos_map_set_len)
11580 {
11581 struct i802_bss *bss = priv;
11582 struct wpa_driver_nl80211_data *drv = bss->drv;
11583 struct nl_msg *msg;
11584 int ret;
11585
11586 msg = nlmsg_alloc();
11587 if (!msg)
11588 return -ENOMEM;
11589
11590 wpa_hexdump(MSG_DEBUG, "nl80211: Setting QoS Map",
11591 qos_map_set, qos_map_set_len);
11592
11593 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_QOS_MAP);
11594 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
11595 NLA_PUT(msg, NL80211_ATTR_QOS_MAP, qos_map_set_len, qos_map_set);
11596
11597 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
11598 if (ret)
11599 wpa_printf(MSG_DEBUG, "nl80211: Setting QoS Map failed");
11600
11601 return ret;
11602
11603 nla_put_failure:
11604 nlmsg_free(msg);
11605 return -ENOBUFS;
11606 }
11607
11608
11609 const struct wpa_driver_ops wpa_driver_nl80211_ops = {
11610 .name = "nl80211",
11611 .desc = "Linux nl80211/cfg80211",
11612 .get_bssid = wpa_driver_nl80211_get_bssid,
11613 .get_ssid = wpa_driver_nl80211_get_ssid,
11614 .set_key = driver_nl80211_set_key,
11615 .scan2 = driver_nl80211_scan2,
11616 .sched_scan = wpa_driver_nl80211_sched_scan,
11617 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan,
11618 .get_scan_results2 = wpa_driver_nl80211_get_scan_results,
11619 .deauthenticate = driver_nl80211_deauthenticate,
11620 .authenticate = driver_nl80211_authenticate,
11621 .associate = wpa_driver_nl80211_associate,
11622 .global_init = nl80211_global_init,
11623 .global_deinit = nl80211_global_deinit,
11624 .init2 = wpa_driver_nl80211_init,
11625 .deinit = driver_nl80211_deinit,
11626 .get_capa = wpa_driver_nl80211_get_capa,
11627 .set_operstate = wpa_driver_nl80211_set_operstate,
11628 .set_supp_port = wpa_driver_nl80211_set_supp_port,
11629 .set_country = wpa_driver_nl80211_set_country,
11630 .get_country = wpa_driver_nl80211_get_country,
11631 .set_ap = wpa_driver_nl80211_set_ap,
11632 .set_acl = wpa_driver_nl80211_set_acl,
11633 .if_add = wpa_driver_nl80211_if_add,
11634 .if_remove = driver_nl80211_if_remove,
11635 .send_mlme = driver_nl80211_send_mlme,
11636 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data,
11637 .sta_add = wpa_driver_nl80211_sta_add,
11638 .sta_remove = driver_nl80211_sta_remove,
11639 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol,
11640 .sta_set_flags = wpa_driver_nl80211_sta_set_flags,
11641 .hapd_init = i802_init,
11642 .hapd_deinit = i802_deinit,
11643 .set_wds_sta = i802_set_wds_sta,
11644 .get_seqnum = i802_get_seqnum,
11645 .flush = i802_flush,
11646 .get_inact_sec = i802_get_inact_sec,
11647 .sta_clear_stats = i802_sta_clear_stats,
11648 .set_rts = i802_set_rts,
11649 .set_frag = i802_set_frag,
11650 .set_tx_queue_params = i802_set_tx_queue_params,
11651 .set_sta_vlan = driver_nl80211_set_sta_vlan,
11652 .sta_deauth = i802_sta_deauth,
11653 .sta_disassoc = i802_sta_disassoc,
11654 .read_sta_data = driver_nl80211_read_sta_data,
11655 .set_freq = i802_set_freq,
11656 .send_action = driver_nl80211_send_action,
11657 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait,
11658 .remain_on_channel = wpa_driver_nl80211_remain_on_channel,
11659 .cancel_remain_on_channel =
11660 wpa_driver_nl80211_cancel_remain_on_channel,
11661 .probe_req_report = driver_nl80211_probe_req_report,
11662 .deinit_ap = wpa_driver_nl80211_deinit_ap,
11663 .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli,
11664 .resume = wpa_driver_nl80211_resume,
11665 .send_ft_action = nl80211_send_ft_action,
11666 .signal_monitor = nl80211_signal_monitor,
11667 .signal_poll = nl80211_signal_poll,
11668 .send_frame = nl80211_send_frame,
11669 .shared_freq = wpa_driver_nl80211_shared_freq,
11670 .set_param = nl80211_set_param,
11671 .get_radio_name = nl80211_get_radio_name,
11672 .add_pmkid = nl80211_add_pmkid,
11673 .remove_pmkid = nl80211_remove_pmkid,
11674 .flush_pmkid = nl80211_flush_pmkid,
11675 .set_rekey_info = nl80211_set_rekey_info,
11676 .poll_client = nl80211_poll_client,
11677 .set_p2p_powersave = nl80211_set_p2p_powersave,
11678 .start_dfs_cac = nl80211_start_radar_detection,
11679 .stop_ap = wpa_driver_nl80211_stop_ap,
11680 #ifdef CONFIG_TDLS
11681 .send_tdls_mgmt = nl80211_send_tdls_mgmt,
11682 .tdls_oper = nl80211_tdls_oper,
11683 #endif /* CONFIG_TDLS */
11684 .update_ft_ies = wpa_driver_nl80211_update_ft_ies,
11685 .get_mac_addr = wpa_driver_nl80211_get_macaddr,
11686 .get_survey = wpa_driver_nl80211_get_survey,
11687 .status = wpa_driver_nl80211_status,
11688 .switch_channel = nl80211_switch_channel,
11689 #ifdef ANDROID_P2P
11690 .set_noa = wpa_driver_set_p2p_noa,
11691 .get_noa = wpa_driver_get_p2p_noa,
11692 .set_ap_wps_ie = wpa_driver_set_ap_wps_p2p_ie,
11693 #endif /* ANDROID_P2P */
11694 #ifdef ANDROID
11695 .driver_cmd = wpa_driver_nl80211_driver_cmd,
11696 #endif /* ANDROID */
11697 .set_qos_map = nl80211_set_qos_map,
11698 };
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