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nl80211: Cancel all pending TX frame cookies
[thirdparty/hostap.git] / src / drivers / driver_nl80211.c
1 /*
2 * Driver interaction with Linux nl80211/cfg80211
3 * Copyright (c) 2002-2015, 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/types.h>
15 #include <fcntl.h>
16 #include <net/if.h>
17 #include <netlink/genl/genl.h>
18 #include <netlink/genl/ctrl.h>
19 #ifdef CONFIG_LIBNL3_ROUTE
20 #include <netlink/route/neighbour.h>
21 #endif /* CONFIG_LIBNL3_ROUTE */
22 #include <linux/rtnetlink.h>
23 #include <netpacket/packet.h>
24 #include <linux/errqueue.h>
25
26 #include "common.h"
27 #include "eloop.h"
28 #include "common/qca-vendor.h"
29 #include "common/qca-vendor-attr.h"
30 #include "common/ieee802_11_defs.h"
31 #include "common/ieee802_11_common.h"
32 #include "l2_packet/l2_packet.h"
33 #include "netlink.h"
34 #include "linux_defines.h"
35 #include "linux_ioctl.h"
36 #include "radiotap.h"
37 #include "radiotap_iter.h"
38 #include "rfkill.h"
39 #include "driver_nl80211.h"
40
41
42 #ifndef CONFIG_LIBNL20
43 /*
44 * libnl 1.1 has a bug, it tries to allocate socket numbers densely
45 * but when you free a socket again it will mess up its bitmap and
46 * and use the wrong number the next time it needs a socket ID.
47 * Therefore, we wrap the handle alloc/destroy and add our own pid
48 * accounting.
49 */
50 static uint32_t port_bitmap[32] = { 0 };
51
52 static struct nl_handle *nl80211_handle_alloc(void *cb)
53 {
54 struct nl_handle *handle;
55 uint32_t pid = getpid() & 0x3FFFFF;
56 int i;
57
58 handle = nl_handle_alloc_cb(cb);
59
60 for (i = 0; i < 1024; i++) {
61 if (port_bitmap[i / 32] & (1 << (i % 32)))
62 continue;
63 port_bitmap[i / 32] |= 1 << (i % 32);
64 pid += i << 22;
65 break;
66 }
67
68 nl_socket_set_local_port(handle, pid);
69
70 return handle;
71 }
72
73 static void nl80211_handle_destroy(struct nl_handle *handle)
74 {
75 uint32_t port = nl_socket_get_local_port(handle);
76
77 port >>= 22;
78 port_bitmap[port / 32] &= ~(1 << (port % 32));
79
80 nl_handle_destroy(handle);
81 }
82 #endif /* CONFIG_LIBNL20 */
83
84
85 #ifdef ANDROID
86 /* system/core/libnl_2 does not include nl_socket_set_nonblocking() */
87 #undef nl_socket_set_nonblocking
88 #define nl_socket_set_nonblocking(h) android_nl_socket_set_nonblocking(h)
89
90 #endif /* ANDROID */
91
92
93 static struct nl_handle * nl_create_handle(struct nl_cb *cb, const char *dbg)
94 {
95 struct nl_handle *handle;
96
97 handle = nl80211_handle_alloc(cb);
98 if (handle == NULL) {
99 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
100 "callbacks (%s)", dbg);
101 return NULL;
102 }
103
104 if (genl_connect(handle)) {
105 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
106 "netlink (%s)", dbg);
107 nl80211_handle_destroy(handle);
108 return NULL;
109 }
110
111 return handle;
112 }
113
114
115 static void nl_destroy_handles(struct nl_handle **handle)
116 {
117 if (*handle == NULL)
118 return;
119 nl80211_handle_destroy(*handle);
120 *handle = NULL;
121 }
122
123
124 #if __WORDSIZE == 64
125 #define ELOOP_SOCKET_INVALID (intptr_t) 0x8888888888888889ULL
126 #else
127 #define ELOOP_SOCKET_INVALID (intptr_t) 0x88888889ULL
128 #endif
129
130 static void nl80211_register_eloop_read(struct nl_handle **handle,
131 eloop_sock_handler handler,
132 void *eloop_data)
133 {
134 #ifdef CONFIG_LIBNL20
135 /*
136 * libnl uses a pretty small buffer (32 kB that gets converted to 64 kB)
137 * by default. It is possible to hit that limit in some cases where
138 * operations are blocked, e.g., with a burst of Deauthentication frames
139 * to hostapd and STA entry deletion. Try to increase the buffer to make
140 * this less likely to occur.
141 */
142 if (nl_socket_set_buffer_size(*handle, 262144, 0) < 0) {
143 wpa_printf(MSG_DEBUG,
144 "nl80211: Could not set nl_socket RX buffer size: %s",
145 strerror(errno));
146 /* continue anyway with the default (smaller) buffer */
147 }
148 #endif /* CONFIG_LIBNL20 */
149
150 nl_socket_set_nonblocking(*handle);
151 eloop_register_read_sock(nl_socket_get_fd(*handle), handler,
152 eloop_data, *handle);
153 *handle = (void *) (((intptr_t) *handle) ^ ELOOP_SOCKET_INVALID);
154 }
155
156
157 static void nl80211_destroy_eloop_handle(struct nl_handle **handle)
158 {
159 *handle = (void *) (((intptr_t) *handle) ^ ELOOP_SOCKET_INVALID);
160 eloop_unregister_read_sock(nl_socket_get_fd(*handle));
161 nl_destroy_handles(handle);
162 }
163
164
165 static void nl80211_global_deinit(void *priv);
166 static void nl80211_check_global(struct nl80211_global *global);
167
168 static void wpa_driver_nl80211_deinit(struct i802_bss *bss);
169 static int wpa_driver_nl80211_set_mode_ibss(struct i802_bss *bss,
170 struct hostapd_freq_params *freq);
171
172 static int
173 wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv,
174 const u8 *set_addr, int first,
175 const char *driver_params);
176 static int nl80211_send_frame_cmd(struct i802_bss *bss,
177 unsigned int freq, unsigned int wait,
178 const u8 *buf, size_t buf_len, u64 *cookie,
179 int no_cck, int no_ack, int offchanok,
180 const u16 *csa_offs, size_t csa_offs_len);
181 static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss,
182 int report);
183
184 static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
185 static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
186 static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
187
188 static int nl80211_set_channel(struct i802_bss *bss,
189 struct hostapd_freq_params *freq, int set_chan);
190 static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
191 int ifindex, int disabled);
192
193 static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv,
194 int reset_mode);
195
196 static int i802_set_iface_flags(struct i802_bss *bss, int up);
197 static int nl80211_set_param(void *priv, const char *param);
198
199
200 /* Converts nl80211_chan_width to a common format */
201 enum chan_width convert2width(int width)
202 {
203 switch (width) {
204 case NL80211_CHAN_WIDTH_20_NOHT:
205 return CHAN_WIDTH_20_NOHT;
206 case NL80211_CHAN_WIDTH_20:
207 return CHAN_WIDTH_20;
208 case NL80211_CHAN_WIDTH_40:
209 return CHAN_WIDTH_40;
210 case NL80211_CHAN_WIDTH_80:
211 return CHAN_WIDTH_80;
212 case NL80211_CHAN_WIDTH_80P80:
213 return CHAN_WIDTH_80P80;
214 case NL80211_CHAN_WIDTH_160:
215 return CHAN_WIDTH_160;
216 }
217 return CHAN_WIDTH_UNKNOWN;
218 }
219
220
221 int is_ap_interface(enum nl80211_iftype nlmode)
222 {
223 return nlmode == NL80211_IFTYPE_AP ||
224 nlmode == NL80211_IFTYPE_P2P_GO;
225 }
226
227
228 int is_sta_interface(enum nl80211_iftype nlmode)
229 {
230 return nlmode == NL80211_IFTYPE_STATION ||
231 nlmode == NL80211_IFTYPE_P2P_CLIENT;
232 }
233
234
235 static int is_p2p_net_interface(enum nl80211_iftype nlmode)
236 {
237 return nlmode == NL80211_IFTYPE_P2P_CLIENT ||
238 nlmode == NL80211_IFTYPE_P2P_GO;
239 }
240
241
242 struct i802_bss * get_bss_ifindex(struct wpa_driver_nl80211_data *drv,
243 int ifindex)
244 {
245 struct i802_bss *bss;
246
247 for (bss = drv->first_bss; bss; bss = bss->next) {
248 if (bss->ifindex == ifindex)
249 return bss;
250 }
251
252 return NULL;
253 }
254
255
256 static int is_mesh_interface(enum nl80211_iftype nlmode)
257 {
258 return nlmode == NL80211_IFTYPE_MESH_POINT;
259 }
260
261
262 void nl80211_mark_disconnected(struct wpa_driver_nl80211_data *drv)
263 {
264 if (drv->associated)
265 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN);
266 drv->associated = 0;
267 os_memset(drv->bssid, 0, ETH_ALEN);
268 }
269
270
271 /* nl80211 code */
272 static int ack_handler(struct nl_msg *msg, void *arg)
273 {
274 int *err = arg;
275 *err = 0;
276 return NL_STOP;
277 }
278
279 static int finish_handler(struct nl_msg *msg, void *arg)
280 {
281 int *ret = arg;
282 *ret = 0;
283 return NL_SKIP;
284 }
285
286 static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err,
287 void *arg)
288 {
289 int *ret = arg;
290 *ret = err->error;
291 return NL_SKIP;
292 }
293
294
295 static int no_seq_check(struct nl_msg *msg, void *arg)
296 {
297 return NL_OK;
298 }
299
300
301 static void nl80211_nlmsg_clear(struct nl_msg *msg)
302 {
303 /*
304 * Clear nlmsg data, e.g., to make sure key material is not left in
305 * heap memory for unnecessarily long time.
306 */
307 if (msg) {
308 struct nlmsghdr *hdr = nlmsg_hdr(msg);
309 void *data = nlmsg_data(hdr);
310 /*
311 * This would use nlmsg_datalen() or the older nlmsg_len() if
312 * only libnl were to maintain a stable API.. Neither will work
313 * with all released versions, so just calculate the length
314 * here.
315 */
316 int len = hdr->nlmsg_len - NLMSG_HDRLEN;
317
318 os_memset(data, 0, len);
319 }
320 }
321
322
323 static int send_and_recv(struct nl80211_global *global,
324 struct nl_handle *nl_handle, struct nl_msg *msg,
325 int (*valid_handler)(struct nl_msg *, void *),
326 void *valid_data)
327 {
328 struct nl_cb *cb;
329 int err = -ENOMEM;
330
331 if (!msg)
332 return -ENOMEM;
333
334 cb = nl_cb_clone(global->nl_cb);
335 if (!cb)
336 goto out;
337
338 err = nl_send_auto_complete(nl_handle, msg);
339 if (err < 0)
340 goto out;
341
342 err = 1;
343
344 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
345 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
346 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
347
348 if (valid_handler)
349 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM,
350 valid_handler, valid_data);
351
352 while (err > 0) {
353 int res = nl_recvmsgs(nl_handle, cb);
354 if (res < 0) {
355 wpa_printf(MSG_INFO,
356 "nl80211: %s->nl_recvmsgs failed: %d",
357 __func__, res);
358 }
359 }
360 out:
361 nl_cb_put(cb);
362 if (!valid_handler && valid_data == (void *) -1)
363 nl80211_nlmsg_clear(msg);
364 nlmsg_free(msg);
365 return err;
366 }
367
368
369 int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv,
370 struct nl_msg *msg,
371 int (*valid_handler)(struct nl_msg *, void *),
372 void *valid_data)
373 {
374 return send_and_recv(drv->global, drv->global->nl, msg,
375 valid_handler, valid_data);
376 }
377
378
379 struct family_data {
380 const char *group;
381 int id;
382 };
383
384
385 static int family_handler(struct nl_msg *msg, void *arg)
386 {
387 struct family_data *res = arg;
388 struct nlattr *tb[CTRL_ATTR_MAX + 1];
389 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
390 struct nlattr *mcgrp;
391 int i;
392
393 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
394 genlmsg_attrlen(gnlh, 0), NULL);
395 if (!tb[CTRL_ATTR_MCAST_GROUPS])
396 return NL_SKIP;
397
398 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) {
399 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1];
400 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp),
401 nla_len(mcgrp), NULL);
402 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] ||
403 !tb2[CTRL_ATTR_MCAST_GRP_ID] ||
404 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]),
405 res->group,
406 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0)
407 continue;
408 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]);
409 break;
410 };
411
412 return NL_SKIP;
413 }
414
415
416 static int nl_get_multicast_id(struct nl80211_global *global,
417 const char *family, const char *group)
418 {
419 struct nl_msg *msg;
420 int ret;
421 struct family_data res = { group, -ENOENT };
422
423 msg = nlmsg_alloc();
424 if (!msg)
425 return -ENOMEM;
426 if (!genlmsg_put(msg, 0, 0, genl_ctrl_resolve(global->nl, "nlctrl"),
427 0, 0, CTRL_CMD_GETFAMILY, 0) ||
428 nla_put_string(msg, CTRL_ATTR_FAMILY_NAME, family)) {
429 nlmsg_free(msg);
430 return -1;
431 }
432
433 ret = send_and_recv(global, global->nl, msg, family_handler, &res);
434 if (ret == 0)
435 ret = res.id;
436 return ret;
437 }
438
439
440 void * nl80211_cmd(struct wpa_driver_nl80211_data *drv,
441 struct nl_msg *msg, int flags, uint8_t cmd)
442 {
443 return genlmsg_put(msg, 0, 0, drv->global->nl80211_id,
444 0, flags, cmd, 0);
445 }
446
447
448 static int nl80211_set_iface_id(struct nl_msg *msg, struct i802_bss *bss)
449 {
450 if (bss->wdev_id_set)
451 return nla_put_u64(msg, NL80211_ATTR_WDEV, bss->wdev_id);
452 return nla_put_u32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
453 }
454
455
456 struct nl_msg * nl80211_cmd_msg(struct i802_bss *bss, int flags, uint8_t cmd)
457 {
458 struct nl_msg *msg;
459
460 msg = nlmsg_alloc();
461 if (!msg)
462 return NULL;
463
464 if (!nl80211_cmd(bss->drv, msg, flags, cmd) ||
465 nl80211_set_iface_id(msg, bss) < 0) {
466 nlmsg_free(msg);
467 return NULL;
468 }
469
470 return msg;
471 }
472
473
474 static struct nl_msg *
475 nl80211_ifindex_msg(struct wpa_driver_nl80211_data *drv, int ifindex,
476 int flags, uint8_t cmd)
477 {
478 struct nl_msg *msg;
479
480 msg = nlmsg_alloc();
481 if (!msg)
482 return NULL;
483
484 if (!nl80211_cmd(drv, msg, flags, cmd) ||
485 nla_put_u32(msg, NL80211_ATTR_IFINDEX, ifindex)) {
486 nlmsg_free(msg);
487 return NULL;
488 }
489
490 return msg;
491 }
492
493
494 struct nl_msg * nl80211_drv_msg(struct wpa_driver_nl80211_data *drv, int flags,
495 uint8_t cmd)
496 {
497 return nl80211_ifindex_msg(drv, drv->ifindex, flags, cmd);
498 }
499
500
501 struct nl_msg * nl80211_bss_msg(struct i802_bss *bss, int flags, uint8_t cmd)
502 {
503 return nl80211_ifindex_msg(bss->drv, bss->ifindex, flags, cmd);
504 }
505
506
507 struct wiphy_idx_data {
508 int wiphy_idx;
509 enum nl80211_iftype nlmode;
510 u8 *macaddr;
511 };
512
513
514 static int netdev_info_handler(struct nl_msg *msg, void *arg)
515 {
516 struct nlattr *tb[NL80211_ATTR_MAX + 1];
517 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
518 struct wiphy_idx_data *info = arg;
519
520 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
521 genlmsg_attrlen(gnlh, 0), NULL);
522
523 if (tb[NL80211_ATTR_WIPHY])
524 info->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
525
526 if (tb[NL80211_ATTR_IFTYPE])
527 info->nlmode = nla_get_u32(tb[NL80211_ATTR_IFTYPE]);
528
529 if (tb[NL80211_ATTR_MAC] && info->macaddr)
530 os_memcpy(info->macaddr, nla_data(tb[NL80211_ATTR_MAC]),
531 ETH_ALEN);
532
533 return NL_SKIP;
534 }
535
536
537 int nl80211_get_wiphy_index(struct i802_bss *bss)
538 {
539 struct nl_msg *msg;
540 struct wiphy_idx_data data = {
541 .wiphy_idx = -1,
542 .macaddr = NULL,
543 };
544
545 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_GET_INTERFACE)))
546 return -1;
547
548 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0)
549 return data.wiphy_idx;
550 return -1;
551 }
552
553
554 static enum nl80211_iftype nl80211_get_ifmode(struct i802_bss *bss)
555 {
556 struct nl_msg *msg;
557 struct wiphy_idx_data data = {
558 .nlmode = NL80211_IFTYPE_UNSPECIFIED,
559 .macaddr = NULL,
560 };
561
562 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_GET_INTERFACE)))
563 return NL80211_IFTYPE_UNSPECIFIED;
564
565 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0)
566 return data.nlmode;
567 return NL80211_IFTYPE_UNSPECIFIED;
568 }
569
570
571 static int nl80211_get_macaddr(struct i802_bss *bss)
572 {
573 struct nl_msg *msg;
574 struct wiphy_idx_data data = {
575 .macaddr = bss->addr,
576 };
577
578 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_GET_INTERFACE)))
579 return -1;
580
581 return send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data);
582 }
583
584
585 static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv,
586 struct nl80211_wiphy_data *w)
587 {
588 struct nl_msg *msg;
589 int ret;
590
591 msg = nlmsg_alloc();
592 if (!msg)
593 return -1;
594
595 if (!nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_BEACONS) ||
596 nla_put_u32(msg, NL80211_ATTR_WIPHY, w->wiphy_idx)) {
597 nlmsg_free(msg);
598 return -1;
599 }
600
601 ret = send_and_recv(drv->global, w->nl_beacons, msg, NULL, NULL);
602 if (ret) {
603 wpa_printf(MSG_DEBUG, "nl80211: Register beacons command "
604 "failed: ret=%d (%s)",
605 ret, strerror(-ret));
606 }
607 return ret;
608 }
609
610
611 static void nl80211_recv_beacons(int sock, void *eloop_ctx, void *handle)
612 {
613 struct nl80211_wiphy_data *w = eloop_ctx;
614 int res;
615
616 wpa_printf(MSG_EXCESSIVE, "nl80211: Beacon event message available");
617
618 res = nl_recvmsgs(handle, w->nl_cb);
619 if (res < 0) {
620 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d",
621 __func__, res);
622 }
623 }
624
625
626 static int process_beacon_event(struct nl_msg *msg, void *arg)
627 {
628 struct nl80211_wiphy_data *w = arg;
629 struct wpa_driver_nl80211_data *drv;
630 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
631 struct nlattr *tb[NL80211_ATTR_MAX + 1];
632 union wpa_event_data event;
633
634 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
635 genlmsg_attrlen(gnlh, 0), NULL);
636
637 if (gnlh->cmd != NL80211_CMD_FRAME) {
638 wpa_printf(MSG_DEBUG, "nl80211: Unexpected beacon event? (%d)",
639 gnlh->cmd);
640 return NL_SKIP;
641 }
642
643 if (!tb[NL80211_ATTR_FRAME])
644 return NL_SKIP;
645
646 dl_list_for_each(drv, &w->drvs, struct wpa_driver_nl80211_data,
647 wiphy_list) {
648 os_memset(&event, 0, sizeof(event));
649 event.rx_mgmt.frame = nla_data(tb[NL80211_ATTR_FRAME]);
650 event.rx_mgmt.frame_len = nla_len(tb[NL80211_ATTR_FRAME]);
651 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
652 }
653
654 return NL_SKIP;
655 }
656
657
658 static struct nl80211_wiphy_data *
659 nl80211_get_wiphy_data_ap(struct i802_bss *bss)
660 {
661 static DEFINE_DL_LIST(nl80211_wiphys);
662 struct nl80211_wiphy_data *w;
663 int wiphy_idx, found = 0;
664 struct i802_bss *tmp_bss;
665
666 if (bss->wiphy_data != NULL)
667 return bss->wiphy_data;
668
669 wiphy_idx = nl80211_get_wiphy_index(bss);
670
671 dl_list_for_each(w, &nl80211_wiphys, struct nl80211_wiphy_data, list) {
672 if (w->wiphy_idx == wiphy_idx)
673 goto add;
674 }
675
676 /* alloc new one */
677 w = os_zalloc(sizeof(*w));
678 if (w == NULL)
679 return NULL;
680 w->wiphy_idx = wiphy_idx;
681 dl_list_init(&w->bsss);
682 dl_list_init(&w->drvs);
683
684 w->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
685 if (!w->nl_cb) {
686 os_free(w);
687 return NULL;
688 }
689 nl_cb_set(w->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL);
690 nl_cb_set(w->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_beacon_event,
691 w);
692
693 w->nl_beacons = nl_create_handle(bss->drv->global->nl_cb,
694 "wiphy beacons");
695 if (w->nl_beacons == NULL) {
696 os_free(w);
697 return NULL;
698 }
699
700 if (nl80211_register_beacons(bss->drv, w)) {
701 nl_destroy_handles(&w->nl_beacons);
702 os_free(w);
703 return NULL;
704 }
705
706 nl80211_register_eloop_read(&w->nl_beacons, nl80211_recv_beacons, w);
707
708 dl_list_add(&nl80211_wiphys, &w->list);
709
710 add:
711 /* drv entry for this bss already there? */
712 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) {
713 if (tmp_bss->drv == bss->drv) {
714 found = 1;
715 break;
716 }
717 }
718 /* if not add it */
719 if (!found)
720 dl_list_add(&w->drvs, &bss->drv->wiphy_list);
721
722 dl_list_add(&w->bsss, &bss->wiphy_list);
723 bss->wiphy_data = w;
724 return w;
725 }
726
727
728 static void nl80211_put_wiphy_data_ap(struct i802_bss *bss)
729 {
730 struct nl80211_wiphy_data *w = bss->wiphy_data;
731 struct i802_bss *tmp_bss;
732 int found = 0;
733
734 if (w == NULL)
735 return;
736 bss->wiphy_data = NULL;
737 dl_list_del(&bss->wiphy_list);
738
739 /* still any for this drv present? */
740 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) {
741 if (tmp_bss->drv == bss->drv) {
742 found = 1;
743 break;
744 }
745 }
746 /* if not remove it */
747 if (!found)
748 dl_list_del(&bss->drv->wiphy_list);
749
750 if (!dl_list_empty(&w->bsss))
751 return;
752
753 nl80211_destroy_eloop_handle(&w->nl_beacons);
754
755 nl_cb_put(w->nl_cb);
756 dl_list_del(&w->list);
757 os_free(w);
758 }
759
760
761 static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid)
762 {
763 struct i802_bss *bss = priv;
764 struct wpa_driver_nl80211_data *drv = bss->drv;
765 if (!drv->associated)
766 return -1;
767 os_memcpy(bssid, drv->bssid, ETH_ALEN);
768 return 0;
769 }
770
771
772 static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid)
773 {
774 struct i802_bss *bss = priv;
775 struct wpa_driver_nl80211_data *drv = bss->drv;
776 if (!drv->associated)
777 return -1;
778 os_memcpy(ssid, drv->ssid, drv->ssid_len);
779 return drv->ssid_len;
780 }
781
782
783 static void wpa_driver_nl80211_event_newlink(
784 struct wpa_driver_nl80211_data *drv, const char *ifname)
785 {
786 union wpa_event_data event;
787
788 if (os_strcmp(drv->first_bss->ifname, ifname) == 0) {
789 if (if_nametoindex(drv->first_bss->ifname) == 0) {
790 wpa_printf(MSG_DEBUG, "nl80211: Interface %s does not exist - ignore RTM_NEWLINK",
791 drv->first_bss->ifname);
792 return;
793 }
794 if (!drv->if_removed)
795 return;
796 wpa_printf(MSG_DEBUG, "nl80211: Mark if_removed=0 for %s based on RTM_NEWLINK event",
797 drv->first_bss->ifname);
798 drv->if_removed = 0;
799 }
800
801 os_memset(&event, 0, sizeof(event));
802 os_strlcpy(event.interface_status.ifname, ifname,
803 sizeof(event.interface_status.ifname));
804 event.interface_status.ievent = EVENT_INTERFACE_ADDED;
805 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event);
806 }
807
808
809 static void wpa_driver_nl80211_event_dellink(
810 struct wpa_driver_nl80211_data *drv, const char *ifname)
811 {
812 union wpa_event_data event;
813
814 if (os_strcmp(drv->first_bss->ifname, ifname) == 0) {
815 if (drv->if_removed) {
816 wpa_printf(MSG_DEBUG, "nl80211: if_removed already set - ignore RTM_DELLINK event for %s",
817 ifname);
818 return;
819 }
820 wpa_printf(MSG_DEBUG, "RTM_DELLINK: Interface '%s' removed - mark if_removed=1",
821 ifname);
822 drv->if_removed = 1;
823 } else {
824 wpa_printf(MSG_DEBUG, "RTM_DELLINK: Interface '%s' removed",
825 ifname);
826 }
827
828 os_memset(&event, 0, sizeof(event));
829 os_strlcpy(event.interface_status.ifname, ifname,
830 sizeof(event.interface_status.ifname));
831 event.interface_status.ievent = EVENT_INTERFACE_REMOVED;
832 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event);
833 }
834
835
836 static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv,
837 u8 *buf, size_t len)
838 {
839 int attrlen, rta_len;
840 struct rtattr *attr;
841
842 attrlen = len;
843 attr = (struct rtattr *) buf;
844
845 rta_len = RTA_ALIGN(sizeof(struct rtattr));
846 while (RTA_OK(attr, attrlen)) {
847 if (attr->rta_type == IFLA_IFNAME) {
848 if (os_strcmp(((char *) attr) + rta_len,
849 drv->first_bss->ifname) == 0)
850 return 1;
851 else
852 break;
853 }
854 attr = RTA_NEXT(attr, attrlen);
855 }
856
857 return 0;
858 }
859
860
861 static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv,
862 int ifindex, u8 *buf, size_t len)
863 {
864 if (drv->ifindex == ifindex)
865 return 1;
866
867 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) {
868 nl80211_check_global(drv->global);
869 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed "
870 "interface");
871 wpa_driver_nl80211_finish_drv_init(drv, NULL, 0, NULL);
872 return 1;
873 }
874
875 return 0;
876 }
877
878
879 static struct wpa_driver_nl80211_data *
880 nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len)
881 {
882 struct wpa_driver_nl80211_data *drv;
883 dl_list_for_each(drv, &global->interfaces,
884 struct wpa_driver_nl80211_data, list) {
885 if (wpa_driver_nl80211_own_ifindex(drv, idx, buf, len) ||
886 have_ifidx(drv, idx))
887 return drv;
888 }
889 return NULL;
890 }
891
892
893 static void wpa_driver_nl80211_event_rtm_newlink(void *ctx,
894 struct ifinfomsg *ifi,
895 u8 *buf, size_t len)
896 {
897 struct nl80211_global *global = ctx;
898 struct wpa_driver_nl80211_data *drv;
899 int attrlen;
900 struct rtattr *attr;
901 u32 brid = 0;
902 char namebuf[IFNAMSIZ];
903 char ifname[IFNAMSIZ + 1];
904 char extra[100], *pos, *end;
905
906 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len);
907 if (!drv) {
908 wpa_printf(MSG_DEBUG, "nl80211: Ignore RTM_NEWLINK event for foreign ifindex %d",
909 ifi->ifi_index);
910 return;
911 }
912
913 extra[0] = '\0';
914 pos = extra;
915 end = pos + sizeof(extra);
916 ifname[0] = '\0';
917
918 attrlen = len;
919 attr = (struct rtattr *) buf;
920 while (RTA_OK(attr, attrlen)) {
921 switch (attr->rta_type) {
922 case IFLA_IFNAME:
923 if (RTA_PAYLOAD(attr) >= IFNAMSIZ)
924 break;
925 os_memcpy(ifname, RTA_DATA(attr), RTA_PAYLOAD(attr));
926 ifname[RTA_PAYLOAD(attr)] = '\0';
927 break;
928 case IFLA_MASTER:
929 brid = nla_get_u32((struct nlattr *) attr);
930 pos += os_snprintf(pos, end - pos, " master=%u", brid);
931 break;
932 case IFLA_WIRELESS:
933 pos += os_snprintf(pos, end - pos, " wext");
934 break;
935 case IFLA_OPERSTATE:
936 pos += os_snprintf(pos, end - pos, " operstate=%u",
937 nla_get_u32((struct nlattr *) attr));
938 break;
939 case IFLA_LINKMODE:
940 pos += os_snprintf(pos, end - pos, " linkmode=%u",
941 nla_get_u32((struct nlattr *) attr));
942 break;
943 }
944 attr = RTA_NEXT(attr, attrlen);
945 }
946 extra[sizeof(extra) - 1] = '\0';
947
948 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: ifi_index=%d ifname=%s%s ifi_family=%d ifi_flags=0x%x (%s%s%s%s)",
949 ifi->ifi_index, ifname, extra, ifi->ifi_family,
950 ifi->ifi_flags,
951 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "",
952 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "",
953 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "",
954 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : "");
955
956 if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) {
957 namebuf[0] = '\0';
958 if (if_indextoname(ifi->ifi_index, namebuf) &&
959 linux_iface_up(drv->global->ioctl_sock, namebuf) > 0) {
960 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down "
961 "event since interface %s is up", namebuf);
962 drv->ignore_if_down_event = 0;
963 return;
964 }
965 wpa_printf(MSG_DEBUG, "nl80211: Interface down (%s/%s)",
966 namebuf, ifname);
967 if (os_strcmp(drv->first_bss->ifname, ifname) != 0) {
968 wpa_printf(MSG_DEBUG,
969 "nl80211: Not the main interface (%s) - do not indicate interface down",
970 drv->first_bss->ifname);
971 } else if (drv->ignore_if_down_event) {
972 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down "
973 "event generated by mode change");
974 drv->ignore_if_down_event = 0;
975 } else {
976 drv->if_disabled = 1;
977 wpa_supplicant_event(drv->ctx,
978 EVENT_INTERFACE_DISABLED, NULL);
979
980 /*
981 * Try to get drv again, since it may be removed as
982 * part of the EVENT_INTERFACE_DISABLED handling for
983 * dynamic interfaces
984 */
985 drv = nl80211_find_drv(global, ifi->ifi_index,
986 buf, len);
987 if (!drv)
988 return;
989 }
990 }
991
992 if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) {
993 if (if_indextoname(ifi->ifi_index, namebuf) &&
994 linux_iface_up(drv->global->ioctl_sock, namebuf) == 0) {
995 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
996 "event since interface %s is down",
997 namebuf);
998 } else if (if_nametoindex(drv->first_bss->ifname) == 0) {
999 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
1000 "event since interface %s does not exist",
1001 drv->first_bss->ifname);
1002 } else if (drv->if_removed) {
1003 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
1004 "event since interface %s is marked "
1005 "removed", drv->first_bss->ifname);
1006 } else {
1007 struct i802_bss *bss;
1008 u8 addr[ETH_ALEN];
1009
1010 /* Re-read MAC address as it may have changed */
1011 bss = get_bss_ifindex(drv, ifi->ifi_index);
1012 if (bss &&
1013 linux_get_ifhwaddr(drv->global->ioctl_sock,
1014 bss->ifname, addr) < 0) {
1015 wpa_printf(MSG_DEBUG,
1016 "nl80211: %s: failed to re-read MAC address",
1017 bss->ifname);
1018 } else if (bss &&
1019 os_memcmp(addr, bss->addr, ETH_ALEN) != 0) {
1020 wpa_printf(MSG_DEBUG,
1021 "nl80211: Own MAC address on ifindex %d (%s) changed from "
1022 MACSTR " to " MACSTR,
1023 ifi->ifi_index, bss->ifname,
1024 MAC2STR(bss->addr),
1025 MAC2STR(addr));
1026 os_memcpy(bss->addr, addr, ETH_ALEN);
1027 }
1028
1029 wpa_printf(MSG_DEBUG, "nl80211: Interface up");
1030 drv->if_disabled = 0;
1031 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED,
1032 NULL);
1033 }
1034 }
1035
1036 /*
1037 * Some drivers send the association event before the operup event--in
1038 * this case, lifting operstate in wpa_driver_nl80211_set_operstate()
1039 * fails. This will hit us when wpa_supplicant does not need to do
1040 * IEEE 802.1X authentication
1041 */
1042 if (drv->operstate == 1 &&
1043 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP &&
1044 !(ifi->ifi_flags & IFF_RUNNING)) {
1045 wpa_printf(MSG_DEBUG, "nl80211: Set IF_OPER_UP again based on ifi_flags and expected operstate");
1046 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex,
1047 -1, IF_OPER_UP);
1048 }
1049
1050 if (ifname[0])
1051 wpa_driver_nl80211_event_newlink(drv, ifname);
1052
1053 if (ifi->ifi_family == AF_BRIDGE && brid) {
1054 struct i802_bss *bss;
1055
1056 /* device has been added to bridge */
1057 if (!if_indextoname(brid, namebuf)) {
1058 wpa_printf(MSG_DEBUG,
1059 "nl80211: Could not find bridge ifname for ifindex %u",
1060 brid);
1061 return;
1062 }
1063 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s",
1064 brid, namebuf);
1065 add_ifidx(drv, brid);
1066
1067 for (bss = drv->first_bss; bss; bss = bss->next) {
1068 if (os_strcmp(ifname, bss->ifname) == 0) {
1069 os_strlcpy(bss->brname, namebuf, IFNAMSIZ);
1070 break;
1071 }
1072 }
1073 }
1074 }
1075
1076
1077 static void wpa_driver_nl80211_event_rtm_dellink(void *ctx,
1078 struct ifinfomsg *ifi,
1079 u8 *buf, size_t len)
1080 {
1081 struct nl80211_global *global = ctx;
1082 struct wpa_driver_nl80211_data *drv;
1083 int attrlen;
1084 struct rtattr *attr;
1085 u32 brid = 0;
1086 char ifname[IFNAMSIZ + 1];
1087 char extra[100], *pos, *end;
1088
1089 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len);
1090 if (!drv) {
1091 wpa_printf(MSG_DEBUG, "nl80211: Ignore RTM_DELLINK event for foreign ifindex %d",
1092 ifi->ifi_index);
1093 return;
1094 }
1095
1096 extra[0] = '\0';
1097 pos = extra;
1098 end = pos + sizeof(extra);
1099 ifname[0] = '\0';
1100
1101 attrlen = len;
1102 attr = (struct rtattr *) buf;
1103 while (RTA_OK(attr, attrlen)) {
1104 switch (attr->rta_type) {
1105 case IFLA_IFNAME:
1106 if (RTA_PAYLOAD(attr) >= IFNAMSIZ)
1107 break;
1108 os_memcpy(ifname, RTA_DATA(attr), RTA_PAYLOAD(attr));
1109 ifname[RTA_PAYLOAD(attr)] = '\0';
1110 break;
1111 case IFLA_MASTER:
1112 brid = nla_get_u32((struct nlattr *) attr);
1113 pos += os_snprintf(pos, end - pos, " master=%u", brid);
1114 break;
1115 case IFLA_OPERSTATE:
1116 pos += os_snprintf(pos, end - pos, " operstate=%u",
1117 nla_get_u32((struct nlattr *) attr));
1118 break;
1119 case IFLA_LINKMODE:
1120 pos += os_snprintf(pos, end - pos, " linkmode=%u",
1121 nla_get_u32((struct nlattr *) attr));
1122 break;
1123 }
1124 attr = RTA_NEXT(attr, attrlen);
1125 }
1126 extra[sizeof(extra) - 1] = '\0';
1127
1128 wpa_printf(MSG_DEBUG, "RTM_DELLINK: ifi_index=%d ifname=%s%s ifi_family=%d ifi_flags=0x%x (%s%s%s%s)",
1129 ifi->ifi_index, ifname, extra, ifi->ifi_family,
1130 ifi->ifi_flags,
1131 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "",
1132 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "",
1133 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "",
1134 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : "");
1135
1136 if (ifname[0] && (ifi->ifi_family != AF_BRIDGE || !brid))
1137 wpa_driver_nl80211_event_dellink(drv, ifname);
1138
1139 if (ifi->ifi_family == AF_BRIDGE && brid) {
1140 /* device has been removed from bridge */
1141 char namebuf[IFNAMSIZ];
1142
1143 if (!if_indextoname(brid, namebuf)) {
1144 wpa_printf(MSG_DEBUG,
1145 "nl80211: Could not find bridge ifname for ifindex %u",
1146 brid);
1147 } else {
1148 wpa_printf(MSG_DEBUG,
1149 "nl80211: Remove ifindex %u for bridge %s",
1150 brid, namebuf);
1151 }
1152 del_ifidx(drv, brid);
1153 }
1154 }
1155
1156
1157 unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv)
1158 {
1159 struct nl_msg *msg;
1160 int ret;
1161 struct nl80211_bss_info_arg arg;
1162
1163 msg = nl80211_drv_msg(drv, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
1164 os_memset(&arg, 0, sizeof(arg));
1165 arg.drv = drv;
1166 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
1167 if (ret == 0) {
1168 unsigned int freq = drv->nlmode == NL80211_IFTYPE_ADHOC ?
1169 arg.ibss_freq : arg.assoc_freq;
1170 wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the "
1171 "associated BSS from scan results: %u MHz", freq);
1172 if (freq)
1173 drv->assoc_freq = freq;
1174 return drv->assoc_freq;
1175 }
1176 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
1177 "(%s)", ret, strerror(-ret));
1178 return drv->assoc_freq;
1179 }
1180
1181
1182 static int get_link_signal(struct nl_msg *msg, void *arg)
1183 {
1184 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1185 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1186 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1];
1187 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = {
1188 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 },
1189 [NL80211_STA_INFO_SIGNAL_AVG] = { .type = NLA_U8 },
1190 [NL80211_STA_INFO_BEACON_SIGNAL_AVG] = { .type = NLA_U8 },
1191 };
1192 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1];
1193 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = {
1194 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 },
1195 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 },
1196 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG },
1197 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG },
1198 };
1199 struct wpa_signal_info *sig_change = arg;
1200
1201 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1202 genlmsg_attrlen(gnlh, 0), NULL);
1203 if (!tb[NL80211_ATTR_STA_INFO] ||
1204 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX,
1205 tb[NL80211_ATTR_STA_INFO], policy))
1206 return NL_SKIP;
1207 if (!sinfo[NL80211_STA_INFO_SIGNAL])
1208 return NL_SKIP;
1209
1210 sig_change->current_signal =
1211 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]);
1212
1213 if (sinfo[NL80211_STA_INFO_SIGNAL_AVG])
1214 sig_change->avg_signal =
1215 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL_AVG]);
1216 else
1217 sig_change->avg_signal = 0;
1218
1219 if (sinfo[NL80211_STA_INFO_BEACON_SIGNAL_AVG])
1220 sig_change->avg_beacon_signal =
1221 (s8)
1222 nla_get_u8(sinfo[NL80211_STA_INFO_BEACON_SIGNAL_AVG]);
1223 else
1224 sig_change->avg_beacon_signal = 0;
1225
1226 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) {
1227 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX,
1228 sinfo[NL80211_STA_INFO_TX_BITRATE],
1229 rate_policy)) {
1230 sig_change->current_txrate = 0;
1231 } else {
1232 if (rinfo[NL80211_RATE_INFO_BITRATE]) {
1233 sig_change->current_txrate =
1234 nla_get_u16(rinfo[
1235 NL80211_RATE_INFO_BITRATE]) * 100;
1236 }
1237 }
1238 }
1239
1240 return NL_SKIP;
1241 }
1242
1243
1244 int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv,
1245 struct wpa_signal_info *sig)
1246 {
1247 struct nl_msg *msg;
1248
1249 sig->current_signal = -9999;
1250 sig->current_txrate = 0;
1251
1252 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_GET_STATION)) ||
1253 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid)) {
1254 nlmsg_free(msg);
1255 return -ENOBUFS;
1256 }
1257
1258 return send_and_recv_msgs(drv, msg, get_link_signal, sig);
1259 }
1260
1261
1262 static int get_link_noise(struct nl_msg *msg, void *arg)
1263 {
1264 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1265 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1266 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
1267 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
1268 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
1269 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
1270 };
1271 struct wpa_signal_info *sig_change = arg;
1272
1273 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1274 genlmsg_attrlen(gnlh, 0), NULL);
1275
1276 if (!tb[NL80211_ATTR_SURVEY_INFO]) {
1277 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!");
1278 return NL_SKIP;
1279 }
1280
1281 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
1282 tb[NL80211_ATTR_SURVEY_INFO],
1283 survey_policy)) {
1284 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested "
1285 "attributes!");
1286 return NL_SKIP;
1287 }
1288
1289 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY])
1290 return NL_SKIP;
1291
1292 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) !=
1293 sig_change->frequency)
1294 return NL_SKIP;
1295
1296 if (!sinfo[NL80211_SURVEY_INFO_NOISE])
1297 return NL_SKIP;
1298
1299 sig_change->current_noise =
1300 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
1301
1302 return NL_SKIP;
1303 }
1304
1305
1306 int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv,
1307 struct wpa_signal_info *sig_change)
1308 {
1309 struct nl_msg *msg;
1310
1311 sig_change->current_noise = 9999;
1312 sig_change->frequency = drv->assoc_freq;
1313
1314 msg = nl80211_drv_msg(drv, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
1315 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change);
1316 }
1317
1318
1319 static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx,
1320 void *handle)
1321 {
1322 struct nl_cb *cb = eloop_ctx;
1323 int res;
1324
1325 wpa_printf(MSG_MSGDUMP, "nl80211: Event message available");
1326
1327 res = nl_recvmsgs(handle, cb);
1328 if (res < 0) {
1329 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d",
1330 __func__, res);
1331 }
1332 }
1333
1334
1335 /**
1336 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain
1337 * @priv: driver_nl80211 private data
1338 * @alpha2_arg: country to which to switch to
1339 * Returns: 0 on success, -1 on failure
1340 *
1341 * This asks nl80211 to set the regulatory domain for given
1342 * country ISO / IEC alpha2.
1343 */
1344 static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg)
1345 {
1346 struct i802_bss *bss = priv;
1347 struct wpa_driver_nl80211_data *drv = bss->drv;
1348 char alpha2[3];
1349 struct nl_msg *msg;
1350
1351 msg = nlmsg_alloc();
1352 if (!msg)
1353 return -ENOMEM;
1354
1355 alpha2[0] = alpha2_arg[0];
1356 alpha2[1] = alpha2_arg[1];
1357 alpha2[2] = '\0';
1358
1359 if (!nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG) ||
1360 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, alpha2)) {
1361 nlmsg_free(msg);
1362 return -EINVAL;
1363 }
1364 if (send_and_recv_msgs(drv, msg, NULL, NULL))
1365 return -EINVAL;
1366 return 0;
1367 }
1368
1369
1370 static int nl80211_get_country(struct nl_msg *msg, void *arg)
1371 {
1372 char *alpha2 = arg;
1373 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
1374 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1375
1376 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1377 genlmsg_attrlen(gnlh, 0), NULL);
1378 if (!tb_msg[NL80211_ATTR_REG_ALPHA2]) {
1379 wpa_printf(MSG_DEBUG, "nl80211: No country information available");
1380 return NL_SKIP;
1381 }
1382 os_strlcpy(alpha2, nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]), 3);
1383 return NL_SKIP;
1384 }
1385
1386
1387 static int wpa_driver_nl80211_get_country(void *priv, char *alpha2)
1388 {
1389 struct i802_bss *bss = priv;
1390 struct wpa_driver_nl80211_data *drv = bss->drv;
1391 struct nl_msg *msg;
1392 int ret;
1393
1394 msg = nlmsg_alloc();
1395 if (!msg)
1396 return -ENOMEM;
1397
1398 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG);
1399 alpha2[0] = '\0';
1400 ret = send_and_recv_msgs(drv, msg, nl80211_get_country, alpha2);
1401 if (!alpha2[0])
1402 ret = -1;
1403
1404 return ret;
1405 }
1406
1407
1408 static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global)
1409 {
1410 int ret;
1411
1412 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
1413 if (global->nl_cb == NULL) {
1414 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
1415 "callbacks");
1416 return -1;
1417 }
1418
1419 global->nl = nl_create_handle(global->nl_cb, "nl");
1420 if (global->nl == NULL)
1421 goto err;
1422
1423 global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211");
1424 if (global->nl80211_id < 0) {
1425 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not "
1426 "found");
1427 goto err;
1428 }
1429
1430 global->nl_event = nl_create_handle(global->nl_cb, "event");
1431 if (global->nl_event == NULL)
1432 goto err;
1433
1434 ret = nl_get_multicast_id(global, "nl80211", "scan");
1435 if (ret >= 0)
1436 ret = nl_socket_add_membership(global->nl_event, ret);
1437 if (ret < 0) {
1438 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
1439 "membership for scan events: %d (%s)",
1440 ret, strerror(-ret));
1441 goto err;
1442 }
1443
1444 ret = nl_get_multicast_id(global, "nl80211", "mlme");
1445 if (ret >= 0)
1446 ret = nl_socket_add_membership(global->nl_event, ret);
1447 if (ret < 0) {
1448 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
1449 "membership for mlme events: %d (%s)",
1450 ret, strerror(-ret));
1451 goto err;
1452 }
1453
1454 ret = nl_get_multicast_id(global, "nl80211", "regulatory");
1455 if (ret >= 0)
1456 ret = nl_socket_add_membership(global->nl_event, ret);
1457 if (ret < 0) {
1458 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast "
1459 "membership for regulatory events: %d (%s)",
1460 ret, strerror(-ret));
1461 /* Continue without regulatory events */
1462 }
1463
1464 ret = nl_get_multicast_id(global, "nl80211", "vendor");
1465 if (ret >= 0)
1466 ret = nl_socket_add_membership(global->nl_event, ret);
1467 if (ret < 0) {
1468 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast "
1469 "membership for vendor events: %d (%s)",
1470 ret, strerror(-ret));
1471 /* Continue without vendor events */
1472 }
1473
1474 nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
1475 no_seq_check, NULL);
1476 nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
1477 process_global_event, global);
1478
1479 nl80211_register_eloop_read(&global->nl_event,
1480 wpa_driver_nl80211_event_receive,
1481 global->nl_cb);
1482
1483 return 0;
1484
1485 err:
1486 nl_destroy_handles(&global->nl_event);
1487 nl_destroy_handles(&global->nl);
1488 nl_cb_put(global->nl_cb);
1489 global->nl_cb = NULL;
1490 return -1;
1491 }
1492
1493
1494 static void nl80211_check_global(struct nl80211_global *global)
1495 {
1496 struct nl_handle *handle;
1497 const char *groups[] = { "scan", "mlme", "regulatory", "vendor", NULL };
1498 int ret;
1499 unsigned int i;
1500
1501 /*
1502 * Try to re-add memberships to handle case of cfg80211 getting reloaded
1503 * and all registration having been cleared.
1504 */
1505 handle = (void *) (((intptr_t) global->nl_event) ^
1506 ELOOP_SOCKET_INVALID);
1507
1508 for (i = 0; groups[i]; i++) {
1509 ret = nl_get_multicast_id(global, "nl80211", groups[i]);
1510 if (ret >= 0)
1511 ret = nl_socket_add_membership(handle, ret);
1512 if (ret < 0) {
1513 wpa_printf(MSG_INFO,
1514 "nl80211: Could not re-add multicast membership for %s events: %d (%s)",
1515 groups[i], ret, strerror(-ret));
1516 }
1517 }
1518 }
1519
1520
1521 static void wpa_driver_nl80211_rfkill_blocked(void *ctx)
1522 {
1523 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked");
1524 /*
1525 * This may be for any interface; use ifdown event to disable
1526 * interface.
1527 */
1528 }
1529
1530
1531 static void wpa_driver_nl80211_rfkill_unblocked(void *ctx)
1532 {
1533 struct wpa_driver_nl80211_data *drv = ctx;
1534 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked");
1535 if (i802_set_iface_flags(drv->first_bss, 1)) {
1536 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP "
1537 "after rfkill unblock");
1538 return;
1539 }
1540
1541 if (is_p2p_net_interface(drv->nlmode))
1542 nl80211_disable_11b_rates(drv, drv->ifindex, 1);
1543
1544 /* rtnetlink ifup handler will report interface as enabled */
1545 }
1546
1547
1548 static void wpa_driver_nl80211_handle_eapol_tx_status(int sock,
1549 void *eloop_ctx,
1550 void *handle)
1551 {
1552 struct wpa_driver_nl80211_data *drv = eloop_ctx;
1553 u8 data[2048];
1554 struct msghdr msg;
1555 struct iovec entry;
1556 u8 control[512];
1557 struct cmsghdr *cmsg;
1558 int res, found_ee = 0, found_wifi = 0, acked = 0;
1559 union wpa_event_data event;
1560
1561 memset(&msg, 0, sizeof(msg));
1562 msg.msg_iov = &entry;
1563 msg.msg_iovlen = 1;
1564 entry.iov_base = data;
1565 entry.iov_len = sizeof(data);
1566 msg.msg_control = &control;
1567 msg.msg_controllen = sizeof(control);
1568
1569 res = recvmsg(sock, &msg, MSG_ERRQUEUE);
1570 /* if error or not fitting 802.3 header, return */
1571 if (res < 14)
1572 return;
1573
1574 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg))
1575 {
1576 if (cmsg->cmsg_level == SOL_SOCKET &&
1577 cmsg->cmsg_type == SCM_WIFI_STATUS) {
1578 int *ack;
1579
1580 found_wifi = 1;
1581 ack = (void *)CMSG_DATA(cmsg);
1582 acked = *ack;
1583 }
1584
1585 if (cmsg->cmsg_level == SOL_PACKET &&
1586 cmsg->cmsg_type == PACKET_TX_TIMESTAMP) {
1587 struct sock_extended_err *err =
1588 (struct sock_extended_err *)CMSG_DATA(cmsg);
1589
1590 if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS)
1591 found_ee = 1;
1592 }
1593 }
1594
1595 if (!found_ee || !found_wifi)
1596 return;
1597
1598 memset(&event, 0, sizeof(event));
1599 event.eapol_tx_status.dst = data;
1600 event.eapol_tx_status.data = data + 14;
1601 event.eapol_tx_status.data_len = res - 14;
1602 event.eapol_tx_status.ack = acked;
1603 wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event);
1604 }
1605
1606
1607 static int nl80211_init_bss(struct i802_bss *bss)
1608 {
1609 bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
1610 if (!bss->nl_cb)
1611 return -1;
1612
1613 nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
1614 no_seq_check, NULL);
1615 nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
1616 process_bss_event, bss);
1617
1618 return 0;
1619 }
1620
1621
1622 static void nl80211_destroy_bss(struct i802_bss *bss)
1623 {
1624 nl_cb_put(bss->nl_cb);
1625 bss->nl_cb = NULL;
1626 }
1627
1628
1629 static void * wpa_driver_nl80211_drv_init(void *ctx, const char *ifname,
1630 void *global_priv, int hostapd,
1631 const u8 *set_addr,
1632 const char *driver_params)
1633 {
1634 struct wpa_driver_nl80211_data *drv;
1635 struct rfkill_config *rcfg;
1636 struct i802_bss *bss;
1637
1638 if (global_priv == NULL)
1639 return NULL;
1640 drv = os_zalloc(sizeof(*drv));
1641 if (drv == NULL)
1642 return NULL;
1643 drv->global = global_priv;
1644 drv->ctx = ctx;
1645 drv->hostapd = !!hostapd;
1646 drv->eapol_sock = -1;
1647
1648 /*
1649 * There is no driver capability flag for this, so assume it is
1650 * supported and disable this on first attempt to use if the driver
1651 * rejects the command due to missing support.
1652 */
1653 drv->set_rekey_offload = 1;
1654
1655 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
1656 drv->if_indices = drv->default_if_indices;
1657
1658 drv->first_bss = os_zalloc(sizeof(*drv->first_bss));
1659 if (!drv->first_bss) {
1660 os_free(drv);
1661 return NULL;
1662 }
1663 bss = drv->first_bss;
1664 bss->drv = drv;
1665 bss->ctx = ctx;
1666
1667 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname));
1668 drv->monitor_ifidx = -1;
1669 drv->monitor_sock = -1;
1670 drv->eapol_tx_sock = -1;
1671 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
1672
1673 if (nl80211_init_bss(bss))
1674 goto failed;
1675
1676 rcfg = os_zalloc(sizeof(*rcfg));
1677 if (rcfg == NULL)
1678 goto failed;
1679 rcfg->ctx = drv;
1680 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname));
1681 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked;
1682 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked;
1683 drv->rfkill = rfkill_init(rcfg);
1684 if (drv->rfkill == NULL) {
1685 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available");
1686 os_free(rcfg);
1687 }
1688
1689 if (linux_iface_up(drv->global->ioctl_sock, ifname) > 0)
1690 drv->start_iface_up = 1;
1691
1692 if (wpa_driver_nl80211_finish_drv_init(drv, set_addr, 1, driver_params))
1693 goto failed;
1694
1695 drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0);
1696 if (drv->eapol_tx_sock < 0)
1697 goto failed;
1698
1699 if (drv->data_tx_status) {
1700 int enabled = 1;
1701
1702 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS,
1703 &enabled, sizeof(enabled)) < 0) {
1704 wpa_printf(MSG_DEBUG,
1705 "nl80211: wifi status sockopt failed\n");
1706 drv->data_tx_status = 0;
1707 if (!drv->use_monitor)
1708 drv->capa.flags &=
1709 ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
1710 } else {
1711 eloop_register_read_sock(drv->eapol_tx_sock,
1712 wpa_driver_nl80211_handle_eapol_tx_status,
1713 drv, NULL);
1714 }
1715 }
1716
1717 if (drv->global) {
1718 nl80211_check_global(drv->global);
1719 dl_list_add(&drv->global->interfaces, &drv->list);
1720 drv->in_interface_list = 1;
1721 }
1722
1723 return bss;
1724
1725 failed:
1726 wpa_driver_nl80211_deinit(bss);
1727 return NULL;
1728 }
1729
1730
1731 /**
1732 * wpa_driver_nl80211_init - Initialize nl80211 driver interface
1733 * @ctx: context to be used when calling wpa_supplicant functions,
1734 * e.g., wpa_supplicant_event()
1735 * @ifname: interface name, e.g., wlan0
1736 * @global_priv: private driver global data from global_init()
1737 * Returns: Pointer to private data, %NULL on failure
1738 */
1739 static void * wpa_driver_nl80211_init(void *ctx, const char *ifname,
1740 void *global_priv)
1741 {
1742 return wpa_driver_nl80211_drv_init(ctx, ifname, global_priv, 0, NULL,
1743 NULL);
1744 }
1745
1746
1747 static int nl80211_register_frame(struct i802_bss *bss,
1748 struct nl_handle *nl_handle,
1749 u16 type, const u8 *match, size_t match_len)
1750 {
1751 struct wpa_driver_nl80211_data *drv = bss->drv;
1752 struct nl_msg *msg;
1753 int ret;
1754 char buf[30];
1755
1756 buf[0] = '\0';
1757 wpa_snprintf_hex(buf, sizeof(buf), match, match_len);
1758 wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x (%s) nl_handle=%p match=%s",
1759 type, fc2str(type), nl_handle, buf);
1760
1761 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_REGISTER_ACTION)) ||
1762 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE, type) ||
1763 nla_put(msg, NL80211_ATTR_FRAME_MATCH, match_len, match)) {
1764 nlmsg_free(msg);
1765 return -1;
1766 }
1767
1768 ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL);
1769 if (ret) {
1770 wpa_printf(MSG_DEBUG, "nl80211: Register frame command "
1771 "failed (type=%u): ret=%d (%s)",
1772 type, ret, strerror(-ret));
1773 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match",
1774 match, match_len);
1775 }
1776 return ret;
1777 }
1778
1779
1780 static int nl80211_alloc_mgmt_handle(struct i802_bss *bss)
1781 {
1782 if (bss->nl_mgmt) {
1783 wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting "
1784 "already on! (nl_mgmt=%p)", bss->nl_mgmt);
1785 return -1;
1786 }
1787
1788 bss->nl_mgmt = nl_create_handle(bss->nl_cb, "mgmt");
1789 if (bss->nl_mgmt == NULL)
1790 return -1;
1791
1792 return 0;
1793 }
1794
1795
1796 static void nl80211_mgmt_handle_register_eloop(struct i802_bss *bss)
1797 {
1798 nl80211_register_eloop_read(&bss->nl_mgmt,
1799 wpa_driver_nl80211_event_receive,
1800 bss->nl_cb);
1801 }
1802
1803
1804 static int nl80211_register_action_frame(struct i802_bss *bss,
1805 const u8 *match, size_t match_len)
1806 {
1807 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4);
1808 return nl80211_register_frame(bss, bss->nl_mgmt,
1809 type, match, match_len);
1810 }
1811
1812
1813 static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss)
1814 {
1815 struct wpa_driver_nl80211_data *drv = bss->drv;
1816 int ret = 0;
1817
1818 if (nl80211_alloc_mgmt_handle(bss))
1819 return -1;
1820 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP "
1821 "handle %p", bss->nl_mgmt);
1822
1823 if (drv->nlmode == NL80211_IFTYPE_ADHOC) {
1824 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_AUTH << 4);
1825
1826 /* register for any AUTH message */
1827 nl80211_register_frame(bss, bss->nl_mgmt, type, NULL, 0);
1828 }
1829
1830 #ifdef CONFIG_INTERWORKING
1831 /* QoS Map Configure */
1832 if (nl80211_register_action_frame(bss, (u8 *) "\x01\x04", 2) < 0)
1833 ret = -1;
1834 #endif /* CONFIG_INTERWORKING */
1835 #if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING)
1836 /* GAS Initial Request */
1837 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0)
1838 ret = -1;
1839 /* GAS Initial Response */
1840 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0)
1841 ret = -1;
1842 /* GAS Comeback Request */
1843 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0)
1844 ret = -1;
1845 /* GAS Comeback Response */
1846 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0)
1847 ret = -1;
1848 /* Protected GAS Initial Request */
1849 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0a", 2) < 0)
1850 ret = -1;
1851 /* Protected GAS Initial Response */
1852 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0b", 2) < 0)
1853 ret = -1;
1854 /* Protected GAS Comeback Request */
1855 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0c", 2) < 0)
1856 ret = -1;
1857 /* Protected GAS Comeback Response */
1858 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0d", 2) < 0)
1859 ret = -1;
1860 #endif /* CONFIG_P2P || CONFIG_INTERWORKING */
1861 #ifdef CONFIG_P2P
1862 /* P2P Public Action */
1863 if (nl80211_register_action_frame(bss,
1864 (u8 *) "\x04\x09\x50\x6f\x9a\x09",
1865 6) < 0)
1866 ret = -1;
1867 /* P2P Action */
1868 if (nl80211_register_action_frame(bss,
1869 (u8 *) "\x7f\x50\x6f\x9a\x09",
1870 5) < 0)
1871 ret = -1;
1872 #endif /* CONFIG_P2P */
1873 #ifdef CONFIG_IEEE80211W
1874 /* SA Query Response */
1875 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0)
1876 ret = -1;
1877 #endif /* CONFIG_IEEE80211W */
1878 #ifdef CONFIG_TDLS
1879 if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) {
1880 /* TDLS Discovery Response */
1881 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) <
1882 0)
1883 ret = -1;
1884 }
1885 #endif /* CONFIG_TDLS */
1886 #ifdef CONFIG_FST
1887 /* FST Action frames */
1888 if (nl80211_register_action_frame(bss, (u8 *) "\x12", 1) < 0)
1889 ret = -1;
1890 #endif /* CONFIG_FST */
1891
1892 /* FT Action frames */
1893 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0)
1894 ret = -1;
1895 else
1896 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT |
1897 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK;
1898
1899 /* WNM - BSS Transition Management Request */
1900 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0)
1901 ret = -1;
1902 /* WNM-Sleep Mode Response */
1903 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x11", 2) < 0)
1904 ret = -1;
1905
1906 #ifdef CONFIG_HS20
1907 /* WNM-Notification */
1908 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x1a", 2) < 0)
1909 ret = -1;
1910 #endif /* CONFIG_HS20 */
1911
1912 /* WMM-AC ADDTS Response */
1913 if (nl80211_register_action_frame(bss, (u8 *) "\x11\x01", 2) < 0)
1914 ret = -1;
1915
1916 /* WMM-AC DELTS */
1917 if (nl80211_register_action_frame(bss, (u8 *) "\x11\x02", 2) < 0)
1918 ret = -1;
1919
1920 /* Radio Measurement - Neighbor Report Response */
1921 if (nl80211_register_action_frame(bss, (u8 *) "\x05\x05", 2) < 0)
1922 ret = -1;
1923
1924 /* Radio Measurement - Link Measurement Request */
1925 if ((drv->capa.rrm_flags & WPA_DRIVER_FLAGS_TX_POWER_INSERTION) &&
1926 (nl80211_register_action_frame(bss, (u8 *) "\x05\x02", 2) < 0))
1927 ret = -1;
1928
1929 nl80211_mgmt_handle_register_eloop(bss);
1930
1931 return ret;
1932 }
1933
1934
1935 static int nl80211_mgmt_subscribe_mesh(struct i802_bss *bss)
1936 {
1937 int ret = 0;
1938
1939 if (nl80211_alloc_mgmt_handle(bss))
1940 return -1;
1941
1942 wpa_printf(MSG_DEBUG,
1943 "nl80211: Subscribe to mgmt frames with mesh handle %p",
1944 bss->nl_mgmt);
1945
1946 /* Auth frames for mesh SAE */
1947 if (nl80211_register_frame(bss, bss->nl_mgmt,
1948 (WLAN_FC_TYPE_MGMT << 2) |
1949 (WLAN_FC_STYPE_AUTH << 4),
1950 NULL, 0) < 0)
1951 ret = -1;
1952
1953 /* Mesh peering open */
1954 if (nl80211_register_action_frame(bss, (u8 *) "\x0f\x01", 2) < 0)
1955 ret = -1;
1956 /* Mesh peering confirm */
1957 if (nl80211_register_action_frame(bss, (u8 *) "\x0f\x02", 2) < 0)
1958 ret = -1;
1959 /* Mesh peering close */
1960 if (nl80211_register_action_frame(bss, (u8 *) "\x0f\x03", 2) < 0)
1961 ret = -1;
1962
1963 nl80211_mgmt_handle_register_eloop(bss);
1964
1965 return ret;
1966 }
1967
1968
1969 static int nl80211_register_spurious_class3(struct i802_bss *bss)
1970 {
1971 struct nl_msg *msg;
1972 int ret;
1973
1974 msg = nl80211_bss_msg(bss, 0, NL80211_CMD_UNEXPECTED_FRAME);
1975 ret = send_and_recv(bss->drv->global, bss->nl_mgmt, msg, NULL, NULL);
1976 if (ret) {
1977 wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 "
1978 "failed: ret=%d (%s)",
1979 ret, strerror(-ret));
1980 }
1981 return ret;
1982 }
1983
1984
1985 static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss)
1986 {
1987 static const int stypes[] = {
1988 WLAN_FC_STYPE_AUTH,
1989 WLAN_FC_STYPE_ASSOC_REQ,
1990 WLAN_FC_STYPE_REASSOC_REQ,
1991 WLAN_FC_STYPE_DISASSOC,
1992 WLAN_FC_STYPE_DEAUTH,
1993 WLAN_FC_STYPE_ACTION,
1994 WLAN_FC_STYPE_PROBE_REQ,
1995 /* Beacon doesn't work as mac80211 doesn't currently allow
1996 * it, but it wouldn't really be the right thing anyway as
1997 * it isn't per interface ... maybe just dump the scan
1998 * results periodically for OLBC?
1999 */
2000 /* WLAN_FC_STYPE_BEACON, */
2001 };
2002 unsigned int i;
2003
2004 if (nl80211_alloc_mgmt_handle(bss))
2005 return -1;
2006 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP "
2007 "handle %p", bss->nl_mgmt);
2008
2009 for (i = 0; i < ARRAY_SIZE(stypes); i++) {
2010 if (nl80211_register_frame(bss, bss->nl_mgmt,
2011 (WLAN_FC_TYPE_MGMT << 2) |
2012 (stypes[i] << 4),
2013 NULL, 0) < 0) {
2014 goto out_err;
2015 }
2016 }
2017
2018 if (nl80211_register_spurious_class3(bss))
2019 goto out_err;
2020
2021 if (nl80211_get_wiphy_data_ap(bss) == NULL)
2022 goto out_err;
2023
2024 nl80211_mgmt_handle_register_eloop(bss);
2025 return 0;
2026
2027 out_err:
2028 nl_destroy_handles(&bss->nl_mgmt);
2029 return -1;
2030 }
2031
2032
2033 static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss)
2034 {
2035 if (nl80211_alloc_mgmt_handle(bss))
2036 return -1;
2037 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP "
2038 "handle %p (device SME)", bss->nl_mgmt);
2039
2040 if (nl80211_register_frame(bss, bss->nl_mgmt,
2041 (WLAN_FC_TYPE_MGMT << 2) |
2042 (WLAN_FC_STYPE_ACTION << 4),
2043 NULL, 0) < 0)
2044 goto out_err;
2045
2046 nl80211_mgmt_handle_register_eloop(bss);
2047 return 0;
2048
2049 out_err:
2050 nl_destroy_handles(&bss->nl_mgmt);
2051 return -1;
2052 }
2053
2054
2055 static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason)
2056 {
2057 if (bss->nl_mgmt == NULL)
2058 return;
2059 wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p "
2060 "(%s)", bss->nl_mgmt, reason);
2061 nl80211_destroy_eloop_handle(&bss->nl_mgmt);
2062
2063 nl80211_put_wiphy_data_ap(bss);
2064 }
2065
2066
2067 static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx)
2068 {
2069 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL);
2070 }
2071
2072
2073 static void nl80211_del_p2pdev(struct i802_bss *bss)
2074 {
2075 struct nl_msg *msg;
2076 int ret;
2077
2078 msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_DEL_INTERFACE);
2079 ret = send_and_recv_msgs(bss->drv, msg, NULL, NULL);
2080
2081 wpa_printf(MSG_DEBUG, "nl80211: Delete P2P Device %s (0x%llx): %s",
2082 bss->ifname, (long long unsigned int) bss->wdev_id,
2083 strerror(-ret));
2084 }
2085
2086
2087 static int nl80211_set_p2pdev(struct i802_bss *bss, int start)
2088 {
2089 struct nl_msg *msg;
2090 int ret;
2091
2092 msg = nl80211_cmd_msg(bss, 0, start ? NL80211_CMD_START_P2P_DEVICE :
2093 NL80211_CMD_STOP_P2P_DEVICE);
2094 ret = send_and_recv_msgs(bss->drv, msg, NULL, NULL);
2095
2096 wpa_printf(MSG_DEBUG, "nl80211: %s P2P Device %s (0x%llx): %s",
2097 start ? "Start" : "Stop",
2098 bss->ifname, (long long unsigned int) bss->wdev_id,
2099 strerror(-ret));
2100 return ret;
2101 }
2102
2103
2104 static int i802_set_iface_flags(struct i802_bss *bss, int up)
2105 {
2106 enum nl80211_iftype nlmode;
2107
2108 nlmode = nl80211_get_ifmode(bss);
2109 if (nlmode != NL80211_IFTYPE_P2P_DEVICE) {
2110 return linux_set_iface_flags(bss->drv->global->ioctl_sock,
2111 bss->ifname, up);
2112 }
2113
2114 /* P2P Device has start/stop which is equivalent */
2115 return nl80211_set_p2pdev(bss, up);
2116 }
2117
2118
2119 #ifdef CONFIG_TESTING_OPTIONS
2120 static int qca_vendor_test_cmd_handler(struct nl_msg *msg, void *arg)
2121 {
2122 /* struct wpa_driver_nl80211_data *drv = arg; */
2123 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2124 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2125
2126
2127 wpa_printf(MSG_DEBUG,
2128 "nl80211: QCA vendor test command response received");
2129
2130 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2131 genlmsg_attrlen(gnlh, 0), NULL);
2132 if (!tb[NL80211_ATTR_VENDOR_DATA]) {
2133 wpa_printf(MSG_DEBUG, "nl80211: No vendor data attribute");
2134 return NL_SKIP;
2135 }
2136
2137 wpa_hexdump(MSG_DEBUG,
2138 "nl80211: Received QCA vendor test command response",
2139 nla_data(tb[NL80211_ATTR_VENDOR_DATA]),
2140 nla_len(tb[NL80211_ATTR_VENDOR_DATA]));
2141
2142 return NL_SKIP;
2143 }
2144 #endif /* CONFIG_TESTING_OPTIONS */
2145
2146
2147 static void qca_vendor_test(struct wpa_driver_nl80211_data *drv)
2148 {
2149 #ifdef CONFIG_TESTING_OPTIONS
2150 struct nl_msg *msg;
2151 struct nlattr *params;
2152 int ret;
2153
2154 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
2155 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
2156 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
2157 QCA_NL80211_VENDOR_SUBCMD_TEST) ||
2158 !(params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) ||
2159 nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_TEST, 123)) {
2160 nlmsg_free(msg);
2161 return;
2162 }
2163 nla_nest_end(msg, params);
2164
2165 ret = send_and_recv_msgs(drv, msg, qca_vendor_test_cmd_handler, drv);
2166 wpa_printf(MSG_DEBUG,
2167 "nl80211: QCA vendor test command returned %d (%s)",
2168 ret, strerror(-ret));
2169 #endif /* CONFIG_TESTING_OPTIONS */
2170 }
2171
2172
2173 static int
2174 wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv,
2175 const u8 *set_addr, int first,
2176 const char *driver_params)
2177 {
2178 struct i802_bss *bss = drv->first_bss;
2179 int send_rfkill_event = 0;
2180 enum nl80211_iftype nlmode;
2181
2182 drv->ifindex = if_nametoindex(bss->ifname);
2183 bss->ifindex = drv->ifindex;
2184 bss->wdev_id = drv->global->if_add_wdevid;
2185 bss->wdev_id_set = drv->global->if_add_wdevid_set;
2186
2187 bss->if_dynamic = drv->ifindex == drv->global->if_add_ifindex;
2188 bss->if_dynamic = bss->if_dynamic || drv->global->if_add_wdevid_set;
2189 drv->global->if_add_wdevid_set = 0;
2190
2191 if (!bss->if_dynamic && nl80211_get_ifmode(bss) == NL80211_IFTYPE_AP)
2192 bss->static_ap = 1;
2193
2194 if (wpa_driver_nl80211_capa(drv))
2195 return -1;
2196
2197 if (driver_params && nl80211_set_param(bss, driver_params) < 0)
2198 return -1;
2199
2200 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s",
2201 bss->ifname, drv->phyname);
2202
2203 if (set_addr &&
2204 (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0) ||
2205 linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
2206 set_addr)))
2207 return -1;
2208
2209 if (first && nl80211_get_ifmode(bss) == NL80211_IFTYPE_AP)
2210 drv->start_mode_ap = 1;
2211
2212 if (drv->hostapd || bss->static_ap)
2213 nlmode = NL80211_IFTYPE_AP;
2214 else if (bss->if_dynamic)
2215 nlmode = nl80211_get_ifmode(bss);
2216 else
2217 nlmode = NL80211_IFTYPE_STATION;
2218
2219 if (wpa_driver_nl80211_set_mode(bss, nlmode) < 0) {
2220 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver mode");
2221 return -1;
2222 }
2223
2224 if (nlmode == NL80211_IFTYPE_P2P_DEVICE)
2225 nl80211_get_macaddr(bss);
2226
2227 if (!rfkill_is_blocked(drv->rfkill)) {
2228 int ret = i802_set_iface_flags(bss, 1);
2229 if (ret) {
2230 wpa_printf(MSG_ERROR, "nl80211: Could not set "
2231 "interface '%s' UP", bss->ifname);
2232 return ret;
2233 }
2234
2235 if (is_p2p_net_interface(nlmode))
2236 nl80211_disable_11b_rates(bss->drv,
2237 bss->drv->ifindex, 1);
2238
2239 if (nlmode == NL80211_IFTYPE_P2P_DEVICE)
2240 return ret;
2241 } else {
2242 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable "
2243 "interface '%s' due to rfkill", bss->ifname);
2244 if (nlmode == NL80211_IFTYPE_P2P_DEVICE)
2245 return 0;
2246 drv->if_disabled = 1;
2247 send_rfkill_event = 1;
2248 }
2249
2250 if (!drv->hostapd)
2251 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex,
2252 1, IF_OPER_DORMANT);
2253
2254 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
2255 bss->addr))
2256 return -1;
2257 os_memcpy(drv->perm_addr, bss->addr, ETH_ALEN);
2258
2259 if (send_rfkill_event) {
2260 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill,
2261 drv, drv->ctx);
2262 }
2263
2264 if (drv->vendor_cmd_test_avail)
2265 qca_vendor_test(drv);
2266
2267 return 0;
2268 }
2269
2270
2271 static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv)
2272 {
2273 struct nl_msg *msg;
2274
2275 wpa_printf(MSG_DEBUG, "nl80211: Remove beacon (ifindex=%d)",
2276 drv->ifindex);
2277 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_DEL_BEACON);
2278 return send_and_recv_msgs(drv, msg, NULL, NULL);
2279 }
2280
2281
2282 /**
2283 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface
2284 * @bss: Pointer to private nl80211 data from wpa_driver_nl80211_init()
2285 *
2286 * Shut down driver interface and processing of driver events. Free
2287 * private data buffer if one was allocated in wpa_driver_nl80211_init().
2288 */
2289 static void wpa_driver_nl80211_deinit(struct i802_bss *bss)
2290 {
2291 struct wpa_driver_nl80211_data *drv = bss->drv;
2292
2293 wpa_printf(MSG_INFO, "nl80211: deinit ifname=%s disabled_11b_rates=%d",
2294 bss->ifname, drv->disabled_11b_rates);
2295
2296 bss->in_deinit = 1;
2297 if (drv->data_tx_status)
2298 eloop_unregister_read_sock(drv->eapol_tx_sock);
2299 if (drv->eapol_tx_sock >= 0)
2300 close(drv->eapol_tx_sock);
2301
2302 if (bss->nl_preq)
2303 wpa_driver_nl80211_probe_req_report(bss, 0);
2304 if (bss->added_if_into_bridge) {
2305 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname,
2306 bss->ifname) < 0)
2307 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
2308 "interface %s from bridge %s: %s",
2309 bss->ifname, bss->brname, strerror(errno));
2310 if (drv->rtnl_sk)
2311 nl80211_handle_destroy(drv->rtnl_sk);
2312 }
2313 if (bss->added_bridge) {
2314 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->brname,
2315 0) < 0)
2316 wpa_printf(MSG_INFO,
2317 "nl80211: Could not set bridge %s down",
2318 bss->brname);
2319 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0)
2320 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
2321 "bridge %s: %s",
2322 bss->brname, strerror(errno));
2323 }
2324
2325 nl80211_remove_monitor_interface(drv);
2326
2327 if (is_ap_interface(drv->nlmode))
2328 wpa_driver_nl80211_del_beacon(drv);
2329
2330 if (drv->eapol_sock >= 0) {
2331 eloop_unregister_read_sock(drv->eapol_sock);
2332 close(drv->eapol_sock);
2333 }
2334
2335 if (drv->if_indices != drv->default_if_indices)
2336 os_free(drv->if_indices);
2337
2338 if (drv->disabled_11b_rates)
2339 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
2340
2341 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0,
2342 IF_OPER_UP);
2343 eloop_cancel_timeout(wpa_driver_nl80211_send_rfkill, drv, drv->ctx);
2344 rfkill_deinit(drv->rfkill);
2345
2346 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
2347
2348 if (!drv->start_iface_up)
2349 (void) i802_set_iface_flags(bss, 0);
2350
2351 if (drv->addr_changed) {
2352 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname,
2353 0) < 0) {
2354 wpa_printf(MSG_DEBUG,
2355 "nl80211: Could not set interface down to restore permanent MAC address");
2356 }
2357 if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
2358 drv->perm_addr) < 0) {
2359 wpa_printf(MSG_DEBUG,
2360 "nl80211: Could not restore permanent MAC address");
2361 }
2362 }
2363
2364 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) {
2365 if (!drv->hostapd || !drv->start_mode_ap)
2366 wpa_driver_nl80211_set_mode(bss,
2367 NL80211_IFTYPE_STATION);
2368 nl80211_mgmt_unsubscribe(bss, "deinit");
2369 } else {
2370 nl80211_mgmt_unsubscribe(bss, "deinit");
2371 nl80211_del_p2pdev(bss);
2372 }
2373
2374 nl80211_destroy_bss(drv->first_bss);
2375
2376 os_free(drv->filter_ssids);
2377
2378 os_free(drv->auth_ie);
2379
2380 if (drv->in_interface_list)
2381 dl_list_del(&drv->list);
2382
2383 os_free(drv->extended_capa);
2384 os_free(drv->extended_capa_mask);
2385 os_free(drv->first_bss);
2386 os_free(drv);
2387 }
2388
2389
2390 static u32 wpa_alg_to_cipher_suite(enum wpa_alg alg, size_t key_len)
2391 {
2392 switch (alg) {
2393 case WPA_ALG_WEP:
2394 if (key_len == 5)
2395 return WLAN_CIPHER_SUITE_WEP40;
2396 return WLAN_CIPHER_SUITE_WEP104;
2397 case WPA_ALG_TKIP:
2398 return WLAN_CIPHER_SUITE_TKIP;
2399 case WPA_ALG_CCMP:
2400 return WLAN_CIPHER_SUITE_CCMP;
2401 case WPA_ALG_GCMP:
2402 return WLAN_CIPHER_SUITE_GCMP;
2403 case WPA_ALG_CCMP_256:
2404 return WLAN_CIPHER_SUITE_CCMP_256;
2405 case WPA_ALG_GCMP_256:
2406 return WLAN_CIPHER_SUITE_GCMP_256;
2407 case WPA_ALG_IGTK:
2408 return WLAN_CIPHER_SUITE_AES_CMAC;
2409 case WPA_ALG_BIP_GMAC_128:
2410 return WLAN_CIPHER_SUITE_BIP_GMAC_128;
2411 case WPA_ALG_BIP_GMAC_256:
2412 return WLAN_CIPHER_SUITE_BIP_GMAC_256;
2413 case WPA_ALG_BIP_CMAC_256:
2414 return WLAN_CIPHER_SUITE_BIP_CMAC_256;
2415 case WPA_ALG_SMS4:
2416 return WLAN_CIPHER_SUITE_SMS4;
2417 case WPA_ALG_KRK:
2418 return WLAN_CIPHER_SUITE_KRK;
2419 case WPA_ALG_NONE:
2420 case WPA_ALG_PMK:
2421 wpa_printf(MSG_ERROR, "nl80211: Unexpected encryption algorithm %d",
2422 alg);
2423 return 0;
2424 }
2425
2426 wpa_printf(MSG_ERROR, "nl80211: Unsupported encryption algorithm %d",
2427 alg);
2428 return 0;
2429 }
2430
2431
2432 static u32 wpa_cipher_to_cipher_suite(unsigned int cipher)
2433 {
2434 switch (cipher) {
2435 case WPA_CIPHER_CCMP_256:
2436 return WLAN_CIPHER_SUITE_CCMP_256;
2437 case WPA_CIPHER_GCMP_256:
2438 return WLAN_CIPHER_SUITE_GCMP_256;
2439 case WPA_CIPHER_CCMP:
2440 return WLAN_CIPHER_SUITE_CCMP;
2441 case WPA_CIPHER_GCMP:
2442 return WLAN_CIPHER_SUITE_GCMP;
2443 case WPA_CIPHER_TKIP:
2444 return WLAN_CIPHER_SUITE_TKIP;
2445 case WPA_CIPHER_WEP104:
2446 return WLAN_CIPHER_SUITE_WEP104;
2447 case WPA_CIPHER_WEP40:
2448 return WLAN_CIPHER_SUITE_WEP40;
2449 case WPA_CIPHER_GTK_NOT_USED:
2450 return WLAN_CIPHER_SUITE_NO_GROUP_ADDR;
2451 }
2452
2453 return 0;
2454 }
2455
2456
2457 static int wpa_cipher_to_cipher_suites(unsigned int ciphers, u32 suites[],
2458 int max_suites)
2459 {
2460 int num_suites = 0;
2461
2462 if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP_256)
2463 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP_256;
2464 if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP_256)
2465 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP_256;
2466 if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP)
2467 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP;
2468 if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP)
2469 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP;
2470 if (num_suites < max_suites && ciphers & WPA_CIPHER_TKIP)
2471 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP;
2472 if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP104)
2473 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104;
2474 if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP40)
2475 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40;
2476
2477 return num_suites;
2478 }
2479
2480
2481 #ifdef CONFIG_DRIVER_NL80211_QCA
2482 static int issue_key_mgmt_set_key(struct wpa_driver_nl80211_data *drv,
2483 const u8 *key, size_t key_len)
2484 {
2485 struct nl_msg *msg;
2486 int ret;
2487
2488 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_KEY_MGMT_OFFLOAD))
2489 return 0;
2490
2491 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
2492 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
2493 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
2494 QCA_NL80211_VENDOR_SUBCMD_KEY_MGMT_SET_KEY) ||
2495 nla_put(msg, NL80211_ATTR_VENDOR_DATA, key_len, key)) {
2496 nl80211_nlmsg_clear(msg);
2497 nlmsg_free(msg);
2498 return -1;
2499 }
2500 ret = send_and_recv_msgs(drv, msg, NULL, (void *) -1);
2501 if (ret) {
2502 wpa_printf(MSG_DEBUG,
2503 "nl80211: Key management set key failed: ret=%d (%s)",
2504 ret, strerror(-ret));
2505 }
2506
2507 return ret;
2508 }
2509 #endif /* CONFIG_DRIVER_NL80211_QCA */
2510
2511
2512 static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss,
2513 enum wpa_alg alg, const u8 *addr,
2514 int key_idx, int set_tx,
2515 const u8 *seq, size_t seq_len,
2516 const u8 *key, size_t key_len)
2517 {
2518 struct wpa_driver_nl80211_data *drv = bss->drv;
2519 int ifindex;
2520 struct nl_msg *msg = NULL;
2521 int ret;
2522 int tdls = 0;
2523
2524 /* Ignore for P2P Device */
2525 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE)
2526 return 0;
2527
2528 ifindex = if_nametoindex(ifname);
2529 wpa_printf(MSG_DEBUG, "%s: ifindex=%d (%s) alg=%d addr=%p key_idx=%d "
2530 "set_tx=%d seq_len=%lu key_len=%lu",
2531 __func__, ifindex, ifname, alg, addr, key_idx, set_tx,
2532 (unsigned long) seq_len, (unsigned long) key_len);
2533 #ifdef CONFIG_TDLS
2534 if (key_idx == -1) {
2535 key_idx = 0;
2536 tdls = 1;
2537 }
2538 #endif /* CONFIG_TDLS */
2539
2540 #ifdef CONFIG_DRIVER_NL80211_QCA
2541 if (alg == WPA_ALG_PMK &&
2542 (drv->capa.flags & WPA_DRIVER_FLAGS_KEY_MGMT_OFFLOAD)) {
2543 wpa_printf(MSG_DEBUG, "%s: calling issue_key_mgmt_set_key",
2544 __func__);
2545 ret = issue_key_mgmt_set_key(drv, key, key_len);
2546 return ret;
2547 }
2548 #endif /* CONFIG_DRIVER_NL80211_QCA */
2549
2550 if (alg == WPA_ALG_NONE) {
2551 msg = nl80211_ifindex_msg(drv, ifindex, 0, NL80211_CMD_DEL_KEY);
2552 if (!msg)
2553 return -ENOBUFS;
2554 } else {
2555 u32 suite;
2556
2557 suite = wpa_alg_to_cipher_suite(alg, key_len);
2558 if (!suite)
2559 goto fail;
2560 msg = nl80211_ifindex_msg(drv, ifindex, 0, NL80211_CMD_NEW_KEY);
2561 if (!msg ||
2562 nla_put(msg, NL80211_ATTR_KEY_DATA, key_len, key) ||
2563 nla_put_u32(msg, NL80211_ATTR_KEY_CIPHER, suite))
2564 goto fail;
2565 wpa_hexdump_key(MSG_DEBUG, "nl80211: KEY_DATA", key, key_len);
2566 }
2567
2568 if (seq && seq_len) {
2569 if (nla_put(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq))
2570 goto fail;
2571 wpa_hexdump(MSG_DEBUG, "nl80211: KEY_SEQ", seq, seq_len);
2572 }
2573
2574 if (addr && !is_broadcast_ether_addr(addr)) {
2575 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr));
2576 if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
2577 goto fail;
2578
2579 if (alg != WPA_ALG_WEP && key_idx && !set_tx) {
2580 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK");
2581 if (nla_put_u32(msg, NL80211_ATTR_KEY_TYPE,
2582 NL80211_KEYTYPE_GROUP))
2583 goto fail;
2584 }
2585 } else if (addr && is_broadcast_ether_addr(addr)) {
2586 struct nlattr *types;
2587
2588 wpa_printf(MSG_DEBUG, " broadcast key");
2589
2590 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES);
2591 if (!types ||
2592 nla_put_flag(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST))
2593 goto fail;
2594 nla_nest_end(msg, types);
2595 }
2596 if (nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2597 goto fail;
2598
2599 ret = send_and_recv_msgs(drv, msg, NULL, key ? (void *) -1 : NULL);
2600 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE)
2601 ret = 0;
2602 if (ret)
2603 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)",
2604 ret, strerror(-ret));
2605
2606 /*
2607 * If we failed or don't need to set the default TX key (below),
2608 * we're done here.
2609 */
2610 if (ret || !set_tx || alg == WPA_ALG_NONE || tdls)
2611 return ret;
2612 if (is_ap_interface(drv->nlmode) && addr &&
2613 !is_broadcast_ether_addr(addr))
2614 return ret;
2615
2616 msg = nl80211_ifindex_msg(drv, ifindex, 0, NL80211_CMD_SET_KEY);
2617 if (!msg ||
2618 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx) ||
2619 nla_put_flag(msg, (alg == WPA_ALG_IGTK ||
2620 alg == WPA_ALG_BIP_GMAC_128 ||
2621 alg == WPA_ALG_BIP_GMAC_256 ||
2622 alg == WPA_ALG_BIP_CMAC_256) ?
2623 NL80211_ATTR_KEY_DEFAULT_MGMT :
2624 NL80211_ATTR_KEY_DEFAULT))
2625 goto fail;
2626 if (addr && is_broadcast_ether_addr(addr)) {
2627 struct nlattr *types;
2628
2629 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES);
2630 if (!types ||
2631 nla_put_flag(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST))
2632 goto fail;
2633 nla_nest_end(msg, types);
2634 } else if (addr) {
2635 struct nlattr *types;
2636
2637 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES);
2638 if (!types ||
2639 nla_put_flag(msg, NL80211_KEY_DEFAULT_TYPE_UNICAST))
2640 goto fail;
2641 nla_nest_end(msg, types);
2642 }
2643
2644 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2645 if (ret == -ENOENT)
2646 ret = 0;
2647 if (ret)
2648 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; "
2649 "err=%d %s)", ret, strerror(-ret));
2650 return ret;
2651
2652 fail:
2653 nl80211_nlmsg_clear(msg);
2654 nlmsg_free(msg);
2655 return -ENOBUFS;
2656 }
2657
2658
2659 static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg,
2660 int key_idx, int defkey,
2661 const u8 *seq, size_t seq_len,
2662 const u8 *key, size_t key_len)
2663 {
2664 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY);
2665 u32 suite;
2666
2667 if (!key_attr)
2668 return -1;
2669
2670 suite = wpa_alg_to_cipher_suite(alg, key_len);
2671 if (!suite)
2672 return -1;
2673
2674 if (defkey && alg == WPA_ALG_IGTK) {
2675 if (nla_put_flag(msg, NL80211_KEY_DEFAULT_MGMT))
2676 return -1;
2677 } else if (defkey) {
2678 if (nla_put_flag(msg, NL80211_KEY_DEFAULT))
2679 return -1;
2680 }
2681
2682 if (nla_put_u8(msg, NL80211_KEY_IDX, key_idx) ||
2683 nla_put_u32(msg, NL80211_KEY_CIPHER, suite) ||
2684 (seq && seq_len &&
2685 nla_put(msg, NL80211_KEY_SEQ, seq_len, seq)) ||
2686 nla_put(msg, NL80211_KEY_DATA, key_len, key))
2687 return -1;
2688
2689 nla_nest_end(msg, key_attr);
2690
2691 return 0;
2692 }
2693
2694
2695 static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params,
2696 struct nl_msg *msg)
2697 {
2698 int i, privacy = 0;
2699 struct nlattr *nl_keys, *nl_key;
2700
2701 for (i = 0; i < 4; i++) {
2702 if (!params->wep_key[i])
2703 continue;
2704 privacy = 1;
2705 break;
2706 }
2707 if (params->wps == WPS_MODE_PRIVACY)
2708 privacy = 1;
2709 if (params->pairwise_suite &&
2710 params->pairwise_suite != WPA_CIPHER_NONE)
2711 privacy = 1;
2712
2713 if (!privacy)
2714 return 0;
2715
2716 if (nla_put_flag(msg, NL80211_ATTR_PRIVACY))
2717 return -ENOBUFS;
2718
2719 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS);
2720 if (!nl_keys)
2721 return -ENOBUFS;
2722
2723 for (i = 0; i < 4; i++) {
2724 if (!params->wep_key[i])
2725 continue;
2726
2727 nl_key = nla_nest_start(msg, i);
2728 if (!nl_key ||
2729 nla_put(msg, NL80211_KEY_DATA, params->wep_key_len[i],
2730 params->wep_key[i]) ||
2731 nla_put_u32(msg, NL80211_KEY_CIPHER,
2732 params->wep_key_len[i] == 5 ?
2733 WLAN_CIPHER_SUITE_WEP40 :
2734 WLAN_CIPHER_SUITE_WEP104) ||
2735 nla_put_u8(msg, NL80211_KEY_IDX, i) ||
2736 (i == params->wep_tx_keyidx &&
2737 nla_put_flag(msg, NL80211_KEY_DEFAULT)))
2738 return -ENOBUFS;
2739
2740 nla_nest_end(msg, nl_key);
2741 }
2742 nla_nest_end(msg, nl_keys);
2743
2744 return 0;
2745 }
2746
2747
2748 int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
2749 const u8 *addr, int cmd, u16 reason_code,
2750 int local_state_change)
2751 {
2752 int ret;
2753 struct nl_msg *msg;
2754
2755 if (!(msg = nl80211_drv_msg(drv, 0, cmd)) ||
2756 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code) ||
2757 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
2758 (local_state_change &&
2759 nla_put_flag(msg, NL80211_ATTR_LOCAL_STATE_CHANGE))) {
2760 nlmsg_free(msg);
2761 return -1;
2762 }
2763
2764 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2765 if (ret) {
2766 wpa_dbg(drv->ctx, MSG_DEBUG,
2767 "nl80211: MLME command failed: reason=%u ret=%d (%s)",
2768 reason_code, ret, strerror(-ret));
2769 }
2770 return ret;
2771 }
2772
2773
2774 static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv,
2775 int reason_code)
2776 {
2777 int ret;
2778
2779 wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code);
2780 nl80211_mark_disconnected(drv);
2781 /* Disconnect command doesn't need BSSID - it uses cached value */
2782 ret = wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT,
2783 reason_code, 0);
2784 /*
2785 * For locally generated disconnect, supplicant already generates a
2786 * DEAUTH event, so ignore the event from NL80211.
2787 */
2788 drv->ignore_next_local_disconnect = ret == 0;
2789
2790 return ret;
2791 }
2792
2793
2794 static int wpa_driver_nl80211_deauthenticate(struct i802_bss *bss,
2795 const u8 *addr, int reason_code)
2796 {
2797 struct wpa_driver_nl80211_data *drv = bss->drv;
2798 int ret;
2799
2800 if (drv->nlmode == NL80211_IFTYPE_ADHOC) {
2801 nl80211_mark_disconnected(drv);
2802 return nl80211_leave_ibss(drv, 1);
2803 }
2804 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
2805 return wpa_driver_nl80211_disconnect(drv, reason_code);
2806 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)",
2807 __func__, MAC2STR(addr), reason_code);
2808 nl80211_mark_disconnected(drv);
2809 ret = wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE,
2810 reason_code, 0);
2811 /*
2812 * For locally generated deauthenticate, supplicant already generates a
2813 * DEAUTH event, so ignore the event from NL80211.
2814 */
2815 drv->ignore_next_local_deauth = ret == 0;
2816 return ret;
2817 }
2818
2819
2820 static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv,
2821 struct wpa_driver_auth_params *params)
2822 {
2823 int i;
2824
2825 drv->auth_freq = params->freq;
2826 drv->auth_alg = params->auth_alg;
2827 drv->auth_wep_tx_keyidx = params->wep_tx_keyidx;
2828 drv->auth_local_state_change = params->local_state_change;
2829 drv->auth_p2p = params->p2p;
2830
2831 if (params->bssid)
2832 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN);
2833 else
2834 os_memset(drv->auth_bssid_, 0, ETH_ALEN);
2835
2836 if (params->ssid) {
2837 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len);
2838 drv->auth_ssid_len = params->ssid_len;
2839 } else
2840 drv->auth_ssid_len = 0;
2841
2842
2843 os_free(drv->auth_ie);
2844 drv->auth_ie = NULL;
2845 drv->auth_ie_len = 0;
2846 if (params->ie) {
2847 drv->auth_ie = os_malloc(params->ie_len);
2848 if (drv->auth_ie) {
2849 os_memcpy(drv->auth_ie, params->ie, params->ie_len);
2850 drv->auth_ie_len = params->ie_len;
2851 }
2852 }
2853
2854 for (i = 0; i < 4; i++) {
2855 if (params->wep_key[i] && params->wep_key_len[i] &&
2856 params->wep_key_len[i] <= 16) {
2857 os_memcpy(drv->auth_wep_key[i], params->wep_key[i],
2858 params->wep_key_len[i]);
2859 drv->auth_wep_key_len[i] = params->wep_key_len[i];
2860 } else
2861 drv->auth_wep_key_len[i] = 0;
2862 }
2863 }
2864
2865
2866 static void nl80211_unmask_11b_rates(struct i802_bss *bss)
2867 {
2868 struct wpa_driver_nl80211_data *drv = bss->drv;
2869
2870 if (is_p2p_net_interface(drv->nlmode) || !drv->disabled_11b_rates)
2871 return;
2872
2873 /*
2874 * Looks like we failed to unmask 11b rates previously. This could
2875 * happen, e.g., if the interface was down at the point in time when a
2876 * P2P group was terminated.
2877 */
2878 wpa_printf(MSG_DEBUG,
2879 "nl80211: Interface %s mode is for non-P2P, but 11b rates were disabled - re-enable them",
2880 bss->ifname);
2881 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
2882 }
2883
2884
2885 static int wpa_driver_nl80211_authenticate(
2886 struct i802_bss *bss, struct wpa_driver_auth_params *params)
2887 {
2888 struct wpa_driver_nl80211_data *drv = bss->drv;
2889 int ret = -1, i;
2890 struct nl_msg *msg;
2891 enum nl80211_auth_type type;
2892 enum nl80211_iftype nlmode;
2893 int count = 0;
2894 int is_retry;
2895
2896 nl80211_unmask_11b_rates(bss);
2897
2898 is_retry = drv->retry_auth;
2899 drv->retry_auth = 0;
2900 drv->ignore_deauth_event = 0;
2901
2902 nl80211_mark_disconnected(drv);
2903 os_memset(drv->auth_bssid, 0, ETH_ALEN);
2904 if (params->bssid)
2905 os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN);
2906 else
2907 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN);
2908 /* FIX: IBSS mode */
2909 nlmode = params->p2p ?
2910 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
2911 if (drv->nlmode != nlmode &&
2912 wpa_driver_nl80211_set_mode(bss, nlmode) < 0)
2913 return -1;
2914
2915 retry:
2916 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)",
2917 drv->ifindex);
2918
2919 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_AUTHENTICATE);
2920 if (!msg)
2921 goto fail;
2922
2923 for (i = 0; i < 4; i++) {
2924 if (!params->wep_key[i])
2925 continue;
2926 wpa_driver_nl80211_set_key(bss->ifname, bss, WPA_ALG_WEP,
2927 NULL, i,
2928 i == params->wep_tx_keyidx, NULL, 0,
2929 params->wep_key[i],
2930 params->wep_key_len[i]);
2931 if (params->wep_tx_keyidx != i)
2932 continue;
2933 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0,
2934 params->wep_key[i], params->wep_key_len[i]))
2935 goto fail;
2936 }
2937
2938 if (params->bssid) {
2939 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
2940 MAC2STR(params->bssid));
2941 if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid))
2942 goto fail;
2943 }
2944 if (params->freq) {
2945 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
2946 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq))
2947 goto fail;
2948 }
2949 if (params->ssid) {
2950 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
2951 params->ssid, params->ssid_len);
2952 if (nla_put(msg, NL80211_ATTR_SSID, params->ssid_len,
2953 params->ssid))
2954 goto fail;
2955 }
2956 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len);
2957 if (params->ie &&
2958 nla_put(msg, NL80211_ATTR_IE, params->ie_len, params->ie))
2959 goto fail;
2960 if (params->sae_data) {
2961 wpa_hexdump(MSG_DEBUG, " * SAE data", params->sae_data,
2962 params->sae_data_len);
2963 if (nla_put(msg, NL80211_ATTR_SAE_DATA, params->sae_data_len,
2964 params->sae_data))
2965 goto fail;
2966 }
2967 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
2968 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2969 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
2970 type = NL80211_AUTHTYPE_SHARED_KEY;
2971 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
2972 type = NL80211_AUTHTYPE_NETWORK_EAP;
2973 else if (params->auth_alg & WPA_AUTH_ALG_FT)
2974 type = NL80211_AUTHTYPE_FT;
2975 else if (params->auth_alg & WPA_AUTH_ALG_SAE)
2976 type = NL80211_AUTHTYPE_SAE;
2977 else
2978 goto fail;
2979 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
2980 if (nla_put_u32(msg, NL80211_ATTR_AUTH_TYPE, type))
2981 goto fail;
2982 if (params->local_state_change) {
2983 wpa_printf(MSG_DEBUG, " * Local state change only");
2984 if (nla_put_flag(msg, NL80211_ATTR_LOCAL_STATE_CHANGE))
2985 goto fail;
2986 }
2987
2988 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2989 msg = NULL;
2990 if (ret) {
2991 wpa_dbg(drv->ctx, MSG_DEBUG,
2992 "nl80211: MLME command failed (auth): ret=%d (%s)",
2993 ret, strerror(-ret));
2994 count++;
2995 if (ret == -EALREADY && count == 1 && params->bssid &&
2996 !params->local_state_change) {
2997 /*
2998 * mac80211 does not currently accept new
2999 * authentication if we are already authenticated. As a
3000 * workaround, force deauthentication and try again.
3001 */
3002 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication "
3003 "after forced deauthentication");
3004 drv->ignore_deauth_event = 1;
3005 wpa_driver_nl80211_deauthenticate(
3006 bss, params->bssid,
3007 WLAN_REASON_PREV_AUTH_NOT_VALID);
3008 nlmsg_free(msg);
3009 goto retry;
3010 }
3011
3012 if (ret == -ENOENT && params->freq && !is_retry) {
3013 /*
3014 * cfg80211 has likely expired the BSS entry even
3015 * though it was previously available in our internal
3016 * BSS table. To recover quickly, start a single
3017 * channel scan on the specified channel.
3018 */
3019 struct wpa_driver_scan_params scan;
3020 int freqs[2];
3021
3022 os_memset(&scan, 0, sizeof(scan));
3023 scan.num_ssids = 1;
3024 if (params->ssid) {
3025 scan.ssids[0].ssid = params->ssid;
3026 scan.ssids[0].ssid_len = params->ssid_len;
3027 }
3028 freqs[0] = params->freq;
3029 freqs[1] = 0;
3030 scan.freqs = freqs;
3031 wpa_printf(MSG_DEBUG, "nl80211: Trigger single "
3032 "channel scan to refresh cfg80211 BSS "
3033 "entry");
3034 ret = wpa_driver_nl80211_scan(bss, &scan);
3035 if (ret == 0) {
3036 nl80211_copy_auth_params(drv, params);
3037 drv->scan_for_auth = 1;
3038 }
3039 } else if (is_retry) {
3040 /*
3041 * Need to indicate this with an event since the return
3042 * value from the retry is not delivered to core code.
3043 */
3044 union wpa_event_data event;
3045 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry "
3046 "failed");
3047 os_memset(&event, 0, sizeof(event));
3048 os_memcpy(event.timeout_event.addr, drv->auth_bssid_,
3049 ETH_ALEN);
3050 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT,
3051 &event);
3052 }
3053 } else {
3054 wpa_printf(MSG_DEBUG,
3055 "nl80211: Authentication request send successfully");
3056 }
3057
3058 fail:
3059 nlmsg_free(msg);
3060 return ret;
3061 }
3062
3063
3064 int wpa_driver_nl80211_authenticate_retry(struct wpa_driver_nl80211_data *drv)
3065 {
3066 struct wpa_driver_auth_params params;
3067 struct i802_bss *bss = drv->first_bss;
3068 int i;
3069
3070 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again");
3071
3072 os_memset(&params, 0, sizeof(params));
3073 params.freq = drv->auth_freq;
3074 params.auth_alg = drv->auth_alg;
3075 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx;
3076 params.local_state_change = drv->auth_local_state_change;
3077 params.p2p = drv->auth_p2p;
3078
3079 if (!is_zero_ether_addr(drv->auth_bssid_))
3080 params.bssid = drv->auth_bssid_;
3081
3082 if (drv->auth_ssid_len) {
3083 params.ssid = drv->auth_ssid;
3084 params.ssid_len = drv->auth_ssid_len;
3085 }
3086
3087 params.ie = drv->auth_ie;
3088 params.ie_len = drv->auth_ie_len;
3089
3090 for (i = 0; i < 4; i++) {
3091 if (drv->auth_wep_key_len[i]) {
3092 params.wep_key[i] = drv->auth_wep_key[i];
3093 params.wep_key_len[i] = drv->auth_wep_key_len[i];
3094 }
3095 }
3096
3097 drv->retry_auth = 1;
3098 return wpa_driver_nl80211_authenticate(bss, &params);
3099 }
3100
3101
3102 static int wpa_driver_nl80211_send_frame(struct i802_bss *bss,
3103 const void *data, size_t len,
3104 int encrypt, int noack,
3105 unsigned int freq, int no_cck,
3106 int offchanok, unsigned int wait_time,
3107 const u16 *csa_offs,
3108 size_t csa_offs_len)
3109 {
3110 struct wpa_driver_nl80211_data *drv = bss->drv;
3111 u64 cookie;
3112 int res;
3113
3114 if (freq == 0 && drv->nlmode == NL80211_IFTYPE_ADHOC) {
3115 freq = nl80211_get_assoc_freq(drv);
3116 wpa_printf(MSG_DEBUG,
3117 "nl80211: send_frame - Use assoc_freq=%u for IBSS",
3118 freq);
3119 }
3120 if (freq == 0) {
3121 wpa_printf(MSG_DEBUG, "nl80211: send_frame - Use bss->freq=%u",
3122 bss->freq);
3123 freq = bss->freq;
3124 }
3125
3126 if (drv->use_monitor) {
3127 wpa_printf(MSG_DEBUG, "nl80211: send_frame(freq=%u bss->freq=%u) -> send_monitor",
3128 freq, bss->freq);
3129 return nl80211_send_monitor(drv, data, len, encrypt, noack);
3130 }
3131
3132 wpa_printf(MSG_DEBUG, "nl80211: send_frame -> send_frame_cmd");
3133 res = nl80211_send_frame_cmd(bss, freq, wait_time, data, len,
3134 &cookie, no_cck, noack, offchanok,
3135 csa_offs, csa_offs_len);
3136 if (res == 0 && !noack) {
3137 const struct ieee80211_mgmt *mgmt;
3138 u16 fc;
3139
3140 mgmt = (const struct ieee80211_mgmt *) data;
3141 fc = le_to_host16(mgmt->frame_control);
3142 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
3143 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_ACTION) {
3144 wpa_printf(MSG_MSGDUMP,
3145 "nl80211: Update send_action_cookie from 0x%llx to 0x%llx",
3146 (long long unsigned int)
3147 drv->send_action_cookie,
3148 (long long unsigned int) cookie);
3149 drv->send_action_cookie = cookie;
3150 }
3151 }
3152
3153 return res;
3154 }
3155
3156
3157 static int wpa_driver_nl80211_send_mlme(struct i802_bss *bss, const u8 *data,
3158 size_t data_len, int noack,
3159 unsigned int freq, int no_cck,
3160 int offchanok,
3161 unsigned int wait_time,
3162 const u16 *csa_offs,
3163 size_t csa_offs_len)
3164 {
3165 struct wpa_driver_nl80211_data *drv = bss->drv;
3166 struct ieee80211_mgmt *mgmt;
3167 int encrypt = 1;
3168 u16 fc;
3169
3170 mgmt = (struct ieee80211_mgmt *) data;
3171 fc = le_to_host16(mgmt->frame_control);
3172 wpa_printf(MSG_DEBUG, "nl80211: send_mlme - da= " MACSTR
3173 " noack=%d freq=%u no_cck=%d offchanok=%d wait_time=%u fc=0x%x (%s) nlmode=%d",
3174 MAC2STR(mgmt->da), noack, freq, no_cck, offchanok, wait_time,
3175 fc, fc2str(fc), drv->nlmode);
3176
3177 if ((is_sta_interface(drv->nlmode) ||
3178 drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) &&
3179 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
3180 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) {
3181 /*
3182 * The use of last_mgmt_freq is a bit of a hack,
3183 * but it works due to the single-threaded nature
3184 * of wpa_supplicant.
3185 */
3186 if (freq == 0) {
3187 wpa_printf(MSG_DEBUG, "nl80211: Use last_mgmt_freq=%d",
3188 drv->last_mgmt_freq);
3189 freq = drv->last_mgmt_freq;
3190 }
3191 return nl80211_send_frame_cmd(bss, freq, 0,
3192 data, data_len, NULL, 1, noack,
3193 1, csa_offs, csa_offs_len);
3194 }
3195
3196 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) {
3197 if (freq == 0) {
3198 wpa_printf(MSG_DEBUG, "nl80211: Use bss->freq=%d",
3199 bss->freq);
3200 freq = bss->freq;
3201 }
3202 return nl80211_send_frame_cmd(bss, freq,
3203 (int) freq == bss->freq ? 0 :
3204 wait_time,
3205 data, data_len,
3206 &drv->send_action_cookie,
3207 no_cck, noack, offchanok,
3208 csa_offs, csa_offs_len);
3209 }
3210
3211 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
3212 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) {
3213 /*
3214 * Only one of the authentication frame types is encrypted.
3215 * In order for static WEP encryption to work properly (i.e.,
3216 * to not encrypt the frame), we need to tell mac80211 about
3217 * the frames that must not be encrypted.
3218 */
3219 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
3220 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction);
3221 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3)
3222 encrypt = 0;
3223 }
3224
3225 wpa_printf(MSG_DEBUG, "nl80211: send_mlme -> send_frame");
3226 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt,
3227 noack, freq, no_cck, offchanok,
3228 wait_time, csa_offs,
3229 csa_offs_len);
3230 }
3231
3232
3233 static int nl80211_put_basic_rates(struct nl_msg *msg, const int *basic_rates)
3234 {
3235 u8 rates[NL80211_MAX_SUPP_RATES];
3236 u8 rates_len = 0;
3237 int i;
3238
3239 if (!basic_rates)
3240 return 0;
3241
3242 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; i++)
3243 rates[rates_len++] = basic_rates[i] / 5;
3244
3245 return nla_put(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates);
3246 }
3247
3248
3249 static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble,
3250 int slot, int ht_opmode, int ap_isolate,
3251 const int *basic_rates)
3252 {
3253 struct wpa_driver_nl80211_data *drv = bss->drv;
3254 struct nl_msg *msg;
3255
3256 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_BSS)) ||
3257 (cts >= 0 &&
3258 nla_put_u8(msg, NL80211_ATTR_BSS_CTS_PROT, cts)) ||
3259 (preamble >= 0 &&
3260 nla_put_u8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble)) ||
3261 (slot >= 0 &&
3262 nla_put_u8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot)) ||
3263 (ht_opmode >= 0 &&
3264 nla_put_u16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode)) ||
3265 (ap_isolate >= 0 &&
3266 nla_put_u8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate)) ||
3267 nl80211_put_basic_rates(msg, basic_rates)) {
3268 nlmsg_free(msg);
3269 return -ENOBUFS;
3270 }
3271
3272 return send_and_recv_msgs(drv, msg, NULL, NULL);
3273 }
3274
3275
3276 static int wpa_driver_nl80211_set_acl(void *priv,
3277 struct hostapd_acl_params *params)
3278 {
3279 struct i802_bss *bss = priv;
3280 struct wpa_driver_nl80211_data *drv = bss->drv;
3281 struct nl_msg *msg;
3282 struct nl_msg *acl;
3283 unsigned int i;
3284 int ret;
3285
3286 if (!(drv->capa.max_acl_mac_addrs))
3287 return -ENOTSUP;
3288
3289 if (params->num_mac_acl > drv->capa.max_acl_mac_addrs)
3290 return -ENOTSUP;
3291
3292 wpa_printf(MSG_DEBUG, "nl80211: Set %s ACL (num_mac_acl=%u)",
3293 params->acl_policy ? "Accept" : "Deny", params->num_mac_acl);
3294
3295 acl = nlmsg_alloc();
3296 if (!acl)
3297 return -ENOMEM;
3298 for (i = 0; i < params->num_mac_acl; i++) {
3299 if (nla_put(acl, i + 1, ETH_ALEN, params->mac_acl[i].addr)) {
3300 nlmsg_free(acl);
3301 return -ENOMEM;
3302 }
3303 }
3304
3305 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_SET_MAC_ACL)) ||
3306 nla_put_u32(msg, NL80211_ATTR_ACL_POLICY, params->acl_policy ?
3307 NL80211_ACL_POLICY_DENY_UNLESS_LISTED :
3308 NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED) ||
3309 nla_put_nested(msg, NL80211_ATTR_MAC_ADDRS, acl)) {
3310 nlmsg_free(msg);
3311 nlmsg_free(acl);
3312 return -ENOMEM;
3313 }
3314 nlmsg_free(acl);
3315
3316 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3317 if (ret) {
3318 wpa_printf(MSG_DEBUG, "nl80211: Failed to set MAC ACL: %d (%s)",
3319 ret, strerror(-ret));
3320 }
3321
3322 return ret;
3323 }
3324
3325
3326 static int nl80211_put_beacon_int(struct nl_msg *msg, int beacon_int)
3327 {
3328 if (beacon_int > 0) {
3329 wpa_printf(MSG_DEBUG, " * beacon_int=%d", beacon_int);
3330 return nla_put_u32(msg, NL80211_ATTR_BEACON_INTERVAL,
3331 beacon_int);
3332 }
3333
3334 return 0;
3335 }
3336
3337
3338 static int wpa_driver_nl80211_set_ap(void *priv,
3339 struct wpa_driver_ap_params *params)
3340 {
3341 struct i802_bss *bss = priv;
3342 struct wpa_driver_nl80211_data *drv = bss->drv;
3343 struct nl_msg *msg;
3344 u8 cmd = NL80211_CMD_NEW_BEACON;
3345 int ret;
3346 int beacon_set;
3347 int num_suites;
3348 int smps_mode;
3349 u32 suites[10], suite;
3350 u32 ver;
3351
3352 beacon_set = params->reenable ? 0 : bss->beacon_set;
3353
3354 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)",
3355 beacon_set);
3356 if (beacon_set)
3357 cmd = NL80211_CMD_SET_BEACON;
3358
3359 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon head",
3360 params->head, params->head_len);
3361 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon tail",
3362 params->tail, params->tail_len);
3363 wpa_printf(MSG_DEBUG, "nl80211: ifindex=%d", bss->ifindex);
3364 wpa_printf(MSG_DEBUG, "nl80211: beacon_int=%d", params->beacon_int);
3365 wpa_printf(MSG_DEBUG, "nl80211: dtim_period=%d", params->dtim_period);
3366 wpa_hexdump_ascii(MSG_DEBUG, "nl80211: ssid",
3367 params->ssid, params->ssid_len);
3368 if (!(msg = nl80211_bss_msg(bss, 0, cmd)) ||
3369 nla_put(msg, NL80211_ATTR_BEACON_HEAD, params->head_len,
3370 params->head) ||
3371 nla_put(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len,
3372 params->tail) ||
3373 nl80211_put_beacon_int(msg, params->beacon_int) ||
3374 nla_put_u32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period) ||
3375 nla_put(msg, NL80211_ATTR_SSID, params->ssid_len, params->ssid))
3376 goto fail;
3377 if (params->proberesp && params->proberesp_len) {
3378 wpa_hexdump(MSG_DEBUG, "nl80211: proberesp (offload)",
3379 params->proberesp, params->proberesp_len);
3380 if (nla_put(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len,
3381 params->proberesp))
3382 goto fail;
3383 }
3384 switch (params->hide_ssid) {
3385 case NO_SSID_HIDING:
3386 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID not in use");
3387 if (nla_put_u32(msg, NL80211_ATTR_HIDDEN_SSID,
3388 NL80211_HIDDEN_SSID_NOT_IN_USE))
3389 goto fail;
3390 break;
3391 case HIDDEN_SSID_ZERO_LEN:
3392 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero len");
3393 if (nla_put_u32(msg, NL80211_ATTR_HIDDEN_SSID,
3394 NL80211_HIDDEN_SSID_ZERO_LEN))
3395 goto fail;
3396 break;
3397 case HIDDEN_SSID_ZERO_CONTENTS:
3398 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero contents");
3399 if (nla_put_u32(msg, NL80211_ATTR_HIDDEN_SSID,
3400 NL80211_HIDDEN_SSID_ZERO_CONTENTS))
3401 goto fail;
3402 break;
3403 }
3404 wpa_printf(MSG_DEBUG, "nl80211: privacy=%d", params->privacy);
3405 if (params->privacy &&
3406 nla_put_flag(msg, NL80211_ATTR_PRIVACY))
3407 goto fail;
3408 wpa_printf(MSG_DEBUG, "nl80211: auth_algs=0x%x", params->auth_algs);
3409 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) ==
3410 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) {
3411 /* Leave out the attribute */
3412 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED) {
3413 if (nla_put_u32(msg, NL80211_ATTR_AUTH_TYPE,
3414 NL80211_AUTHTYPE_SHARED_KEY))
3415 goto fail;
3416 } else {
3417 if (nla_put_u32(msg, NL80211_ATTR_AUTH_TYPE,
3418 NL80211_AUTHTYPE_OPEN_SYSTEM))
3419 goto fail;
3420 }
3421
3422 wpa_printf(MSG_DEBUG, "nl80211: wpa_version=0x%x", params->wpa_version);
3423 ver = 0;
3424 if (params->wpa_version & WPA_PROTO_WPA)
3425 ver |= NL80211_WPA_VERSION_1;
3426 if (params->wpa_version & WPA_PROTO_RSN)
3427 ver |= NL80211_WPA_VERSION_2;
3428 if (ver &&
3429 nla_put_u32(msg, NL80211_ATTR_WPA_VERSIONS, ver))
3430 goto fail;
3431
3432 wpa_printf(MSG_DEBUG, "nl80211: key_mgmt_suites=0x%x",
3433 params->key_mgmt_suites);
3434 num_suites = 0;
3435 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X)
3436 suites[num_suites++] = WLAN_AKM_SUITE_8021X;
3437 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK)
3438 suites[num_suites++] = WLAN_AKM_SUITE_PSK;
3439 if (num_suites &&
3440 nla_put(msg, NL80211_ATTR_AKM_SUITES, num_suites * sizeof(u32),
3441 suites))
3442 goto fail;
3443
3444 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
3445 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40) &&
3446 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT))
3447 goto fail;
3448
3449 wpa_printf(MSG_DEBUG, "nl80211: pairwise_ciphers=0x%x",
3450 params->pairwise_ciphers);
3451 num_suites = wpa_cipher_to_cipher_suites(params->pairwise_ciphers,
3452 suites, ARRAY_SIZE(suites));
3453 if (num_suites &&
3454 nla_put(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE,
3455 num_suites * sizeof(u32), suites))
3456 goto fail;
3457
3458 wpa_printf(MSG_DEBUG, "nl80211: group_cipher=0x%x",
3459 params->group_cipher);
3460 suite = wpa_cipher_to_cipher_suite(params->group_cipher);
3461 if (suite &&
3462 nla_put_u32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, suite))
3463 goto fail;
3464
3465 switch (params->smps_mode) {
3466 case HT_CAP_INFO_SMPS_DYNAMIC:
3467 wpa_printf(MSG_DEBUG, "nl80211: SMPS mode - dynamic");
3468 smps_mode = NL80211_SMPS_DYNAMIC;
3469 break;
3470 case HT_CAP_INFO_SMPS_STATIC:
3471 wpa_printf(MSG_DEBUG, "nl80211: SMPS mode - static");
3472 smps_mode = NL80211_SMPS_STATIC;
3473 break;
3474 default:
3475 /* invalid - fallback to smps off */
3476 case HT_CAP_INFO_SMPS_DISABLED:
3477 wpa_printf(MSG_DEBUG, "nl80211: SMPS mode - off");
3478 smps_mode = NL80211_SMPS_OFF;
3479 break;
3480 }
3481 if (nla_put_u32(msg, NL80211_ATTR_SMPS_MODE, smps_mode))
3482 goto fail;
3483
3484 if (params->beacon_ies) {
3485 wpa_hexdump_buf(MSG_DEBUG, "nl80211: beacon_ies",
3486 params->beacon_ies);
3487 if (nla_put(msg, NL80211_ATTR_IE,
3488 wpabuf_len(params->beacon_ies),
3489 wpabuf_head(params->beacon_ies)))
3490 goto fail;
3491 }
3492 if (params->proberesp_ies) {
3493 wpa_hexdump_buf(MSG_DEBUG, "nl80211: proberesp_ies",
3494 params->proberesp_ies);
3495 if (nla_put(msg, NL80211_ATTR_IE_PROBE_RESP,
3496 wpabuf_len(params->proberesp_ies),
3497 wpabuf_head(params->proberesp_ies)))
3498 goto fail;
3499 }
3500 if (params->assocresp_ies) {
3501 wpa_hexdump_buf(MSG_DEBUG, "nl80211: assocresp_ies",
3502 params->assocresp_ies);
3503 if (nla_put(msg, NL80211_ATTR_IE_ASSOC_RESP,
3504 wpabuf_len(params->assocresp_ies),
3505 wpabuf_head(params->assocresp_ies)))
3506 goto fail;
3507 }
3508
3509 if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) {
3510 wpa_printf(MSG_DEBUG, "nl80211: ap_max_inactivity=%d",
3511 params->ap_max_inactivity);
3512 if (nla_put_u16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT,
3513 params->ap_max_inactivity))
3514 goto fail;
3515 }
3516
3517 #ifdef CONFIG_P2P
3518 if (params->p2p_go_ctwindow > 0) {
3519 if (drv->p2p_go_ctwindow_supported) {
3520 wpa_printf(MSG_DEBUG, "nl80211: P2P GO ctwindow=%d",
3521 params->p2p_go_ctwindow);
3522 if (nla_put_u8(msg, NL80211_ATTR_P2P_CTWINDOW,
3523 params->p2p_go_ctwindow))
3524 goto fail;
3525 } else {
3526 wpa_printf(MSG_INFO,
3527 "nl80211: Driver does not support CTWindow configuration - ignore this parameter");
3528 }
3529 }
3530 #endif /* CONFIG_P2P */
3531
3532 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3533 if (ret) {
3534 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)",
3535 ret, strerror(-ret));
3536 } else {
3537 bss->beacon_set = 1;
3538 nl80211_set_bss(bss, params->cts_protect, params->preamble,
3539 params->short_slot_time, params->ht_opmode,
3540 params->isolate, params->basic_rates);
3541 if (beacon_set && params->freq &&
3542 params->freq->bandwidth != bss->bandwidth) {
3543 wpa_printf(MSG_DEBUG,
3544 "nl80211: Update BSS %s bandwidth: %d -> %d",
3545 bss->ifname, bss->bandwidth,
3546 params->freq->bandwidth);
3547 ret = nl80211_set_channel(bss, params->freq, 1);
3548 if (ret) {
3549 wpa_printf(MSG_DEBUG,
3550 "nl80211: Frequency set failed: %d (%s)",
3551 ret, strerror(-ret));
3552 } else {
3553 wpa_printf(MSG_DEBUG,
3554 "nl80211: Frequency set succeeded for ht2040 coex");
3555 bss->bandwidth = params->freq->bandwidth;
3556 }
3557 } else if (!beacon_set) {
3558 /*
3559 * cfg80211 updates the driver on frequence change in AP
3560 * mode only at the point when beaconing is started, so
3561 * set the initial value here.
3562 */
3563 bss->bandwidth = params->freq->bandwidth;
3564 }
3565 }
3566 return ret;
3567 fail:
3568 nlmsg_free(msg);
3569 return -ENOBUFS;
3570 }
3571
3572
3573 static int nl80211_put_freq_params(struct nl_msg *msg,
3574 const struct hostapd_freq_params *freq)
3575 {
3576 wpa_printf(MSG_DEBUG, " * freq=%d", freq->freq);
3577 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq))
3578 return -ENOBUFS;
3579
3580 wpa_printf(MSG_DEBUG, " * vht_enabled=%d", freq->vht_enabled);
3581 wpa_printf(MSG_DEBUG, " * ht_enabled=%d", freq->ht_enabled);
3582
3583 if (freq->vht_enabled) {
3584 enum nl80211_chan_width cw;
3585
3586 wpa_printf(MSG_DEBUG, " * bandwidth=%d", freq->bandwidth);
3587 switch (freq->bandwidth) {
3588 case 20:
3589 cw = NL80211_CHAN_WIDTH_20;
3590 break;
3591 case 40:
3592 cw = NL80211_CHAN_WIDTH_40;
3593 break;
3594 case 80:
3595 if (freq->center_freq2)
3596 cw = NL80211_CHAN_WIDTH_80P80;
3597 else
3598 cw = NL80211_CHAN_WIDTH_80;
3599 break;
3600 case 160:
3601 cw = NL80211_CHAN_WIDTH_160;
3602 break;
3603 default:
3604 return -EINVAL;
3605 }
3606
3607 wpa_printf(MSG_DEBUG, " * channel_width=%d", cw);
3608 wpa_printf(MSG_DEBUG, " * center_freq1=%d",
3609 freq->center_freq1);
3610 wpa_printf(MSG_DEBUG, " * center_freq2=%d",
3611 freq->center_freq2);
3612 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, cw) ||
3613 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1,
3614 freq->center_freq1) ||
3615 (freq->center_freq2 &&
3616 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2,
3617 freq->center_freq2)))
3618 return -ENOBUFS;
3619 } else if (freq->ht_enabled) {
3620 enum nl80211_channel_type ct;
3621
3622 wpa_printf(MSG_DEBUG, " * sec_channel_offset=%d",
3623 freq->sec_channel_offset);
3624 switch (freq->sec_channel_offset) {
3625 case -1:
3626 ct = NL80211_CHAN_HT40MINUS;
3627 break;
3628 case 1:
3629 ct = NL80211_CHAN_HT40PLUS;
3630 break;
3631 default:
3632 ct = NL80211_CHAN_HT20;
3633 break;
3634 }
3635
3636 wpa_printf(MSG_DEBUG, " * channel_type=%d", ct);
3637 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, ct))
3638 return -ENOBUFS;
3639 }
3640 return 0;
3641 }
3642
3643
3644 static int nl80211_set_channel(struct i802_bss *bss,
3645 struct hostapd_freq_params *freq, int set_chan)
3646 {
3647 struct wpa_driver_nl80211_data *drv = bss->drv;
3648 struct nl_msg *msg;
3649 int ret;
3650
3651 wpa_printf(MSG_DEBUG,
3652 "nl80211: Set freq %d (ht_enabled=%d, vht_enabled=%d, bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)",
3653 freq->freq, freq->ht_enabled, freq->vht_enabled,
3654 freq->bandwidth, freq->center_freq1, freq->center_freq2);
3655
3656 msg = nl80211_drv_msg(drv, 0, set_chan ? NL80211_CMD_SET_CHANNEL :
3657 NL80211_CMD_SET_WIPHY);
3658 if (!msg || nl80211_put_freq_params(msg, freq) < 0) {
3659 nlmsg_free(msg);
3660 return -1;
3661 }
3662
3663 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3664 if (ret == 0) {
3665 bss->freq = freq->freq;
3666 return 0;
3667 }
3668 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): "
3669 "%d (%s)", freq->freq, ret, strerror(-ret));
3670 return -1;
3671 }
3672
3673
3674 static u32 sta_flags_nl80211(int flags)
3675 {
3676 u32 f = 0;
3677
3678 if (flags & WPA_STA_AUTHORIZED)
3679 f |= BIT(NL80211_STA_FLAG_AUTHORIZED);
3680 if (flags & WPA_STA_WMM)
3681 f |= BIT(NL80211_STA_FLAG_WME);
3682 if (flags & WPA_STA_SHORT_PREAMBLE)
3683 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
3684 if (flags & WPA_STA_MFP)
3685 f |= BIT(NL80211_STA_FLAG_MFP);
3686 if (flags & WPA_STA_TDLS_PEER)
3687 f |= BIT(NL80211_STA_FLAG_TDLS_PEER);
3688 if (flags & WPA_STA_AUTHENTICATED)
3689 f |= BIT(NL80211_STA_FLAG_AUTHENTICATED);
3690
3691 return f;
3692 }
3693
3694
3695 #ifdef CONFIG_MESH
3696 static u32 sta_plink_state_nl80211(enum mesh_plink_state state)
3697 {
3698 switch (state) {
3699 case PLINK_LISTEN:
3700 return NL80211_PLINK_LISTEN;
3701 case PLINK_OPEN_SENT:
3702 return NL80211_PLINK_OPN_SNT;
3703 case PLINK_OPEN_RCVD:
3704 return NL80211_PLINK_OPN_RCVD;
3705 case PLINK_CNF_RCVD:
3706 return NL80211_PLINK_CNF_RCVD;
3707 case PLINK_ESTAB:
3708 return NL80211_PLINK_ESTAB;
3709 case PLINK_HOLDING:
3710 return NL80211_PLINK_HOLDING;
3711 case PLINK_BLOCKED:
3712 return NL80211_PLINK_BLOCKED;
3713 default:
3714 wpa_printf(MSG_ERROR, "nl80211: Invalid mesh plink state %d",
3715 state);
3716 }
3717 return -1;
3718 }
3719 #endif /* CONFIG_MESH */
3720
3721
3722 static int wpa_driver_nl80211_sta_add(void *priv,
3723 struct hostapd_sta_add_params *params)
3724 {
3725 struct i802_bss *bss = priv;
3726 struct wpa_driver_nl80211_data *drv = bss->drv;
3727 struct nl_msg *msg;
3728 struct nl80211_sta_flag_update upd;
3729 int ret = -ENOBUFS;
3730
3731 if ((params->flags & WPA_STA_TDLS_PEER) &&
3732 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
3733 return -EOPNOTSUPP;
3734
3735 wpa_printf(MSG_DEBUG, "nl80211: %s STA " MACSTR,
3736 params->set ? "Set" : "Add", MAC2STR(params->addr));
3737 msg = nl80211_bss_msg(bss, 0, params->set ? NL80211_CMD_SET_STATION :
3738 NL80211_CMD_NEW_STATION);
3739 if (!msg || nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr))
3740 goto fail;
3741
3742 if (!params->set || (params->flags & WPA_STA_TDLS_PEER)) {
3743 wpa_hexdump(MSG_DEBUG, " * supported rates",
3744 params->supp_rates, params->supp_rates_len);
3745 wpa_printf(MSG_DEBUG, " * capability=0x%x",
3746 params->capability);
3747 if (nla_put(msg, NL80211_ATTR_STA_SUPPORTED_RATES,
3748 params->supp_rates_len, params->supp_rates) ||
3749 nla_put_u16(msg, NL80211_ATTR_STA_CAPABILITY,
3750 params->capability))
3751 goto fail;
3752
3753 if (params->ht_capabilities) {
3754 wpa_hexdump(MSG_DEBUG, " * ht_capabilities",
3755 (u8 *) params->ht_capabilities,
3756 sizeof(*params->ht_capabilities));
3757 if (nla_put(msg, NL80211_ATTR_HT_CAPABILITY,
3758 sizeof(*params->ht_capabilities),
3759 params->ht_capabilities))
3760 goto fail;
3761 }
3762
3763 if (params->vht_capabilities) {
3764 wpa_hexdump(MSG_DEBUG, " * vht_capabilities",
3765 (u8 *) params->vht_capabilities,
3766 sizeof(*params->vht_capabilities));
3767 if (nla_put(msg, NL80211_ATTR_VHT_CAPABILITY,
3768 sizeof(*params->vht_capabilities),
3769 params->vht_capabilities))
3770 goto fail;
3771 }
3772
3773 if (params->ext_capab) {
3774 wpa_hexdump(MSG_DEBUG, " * ext_capab",
3775 params->ext_capab, params->ext_capab_len);
3776 if (nla_put(msg, NL80211_ATTR_STA_EXT_CAPABILITY,
3777 params->ext_capab_len, params->ext_capab))
3778 goto fail;
3779 }
3780 }
3781 if (!params->set) {
3782 if (params->aid) {
3783 wpa_printf(MSG_DEBUG, " * aid=%u", params->aid);
3784 if (nla_put_u16(msg, NL80211_ATTR_STA_AID, params->aid))
3785 goto fail;
3786 } else {
3787 /*
3788 * cfg80211 validates that AID is non-zero, so we have
3789 * to make this a non-zero value for the TDLS case where
3790 * a dummy STA entry is used for now.
3791 */
3792 wpa_printf(MSG_DEBUG, " * aid=1 (TDLS workaround)");
3793 if (nla_put_u16(msg, NL80211_ATTR_STA_AID, 1))
3794 goto fail;
3795 }
3796 wpa_printf(MSG_DEBUG, " * listen_interval=%u",
3797 params->listen_interval);
3798 if (nla_put_u16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL,
3799 params->listen_interval))
3800 goto fail;
3801 } else if (params->aid && (params->flags & WPA_STA_TDLS_PEER)) {
3802 wpa_printf(MSG_DEBUG, " * peer_aid=%u", params->aid);
3803 if (nla_put_u16(msg, NL80211_ATTR_PEER_AID, params->aid))
3804 goto fail;
3805 }
3806
3807 if (params->vht_opmode_enabled) {
3808 wpa_printf(MSG_DEBUG, " * opmode=%u", params->vht_opmode);
3809 if (nla_put_u8(msg, NL80211_ATTR_OPMODE_NOTIF,
3810 params->vht_opmode))
3811 goto fail;
3812 }
3813
3814 if (params->supp_channels) {
3815 wpa_hexdump(MSG_DEBUG, " * supported channels",
3816 params->supp_channels, params->supp_channels_len);
3817 if (nla_put(msg, NL80211_ATTR_STA_SUPPORTED_CHANNELS,
3818 params->supp_channels_len, params->supp_channels))
3819 goto fail;
3820 }
3821
3822 if (params->supp_oper_classes) {
3823 wpa_hexdump(MSG_DEBUG, " * supported operating classes",
3824 params->supp_oper_classes,
3825 params->supp_oper_classes_len);
3826 if (nla_put(msg, NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES,
3827 params->supp_oper_classes_len,
3828 params->supp_oper_classes))
3829 goto fail;
3830 }
3831
3832 os_memset(&upd, 0, sizeof(upd));
3833 upd.set = sta_flags_nl80211(params->flags);
3834 upd.mask = upd.set | sta_flags_nl80211(params->flags_mask);
3835 wpa_printf(MSG_DEBUG, " * flags set=0x%x mask=0x%x",
3836 upd.set, upd.mask);
3837 if (nla_put(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd))
3838 goto fail;
3839
3840 #ifdef CONFIG_MESH
3841 if (params->plink_state &&
3842 nla_put_u8(msg, NL80211_ATTR_STA_PLINK_STATE,
3843 sta_plink_state_nl80211(params->plink_state)))
3844 goto fail;
3845 #endif /* CONFIG_MESH */
3846
3847 if (params->flags & WPA_STA_WMM) {
3848 struct nlattr *wme = nla_nest_start(msg, NL80211_ATTR_STA_WME);
3849
3850 wpa_printf(MSG_DEBUG, " * qosinfo=0x%x", params->qosinfo);
3851 if (!wme ||
3852 nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
3853 params->qosinfo & WMM_QOSINFO_STA_AC_MASK) ||
3854 nla_put_u8(msg, NL80211_STA_WME_MAX_SP,
3855 (params->qosinfo >> WMM_QOSINFO_STA_SP_SHIFT) &
3856 WMM_QOSINFO_STA_SP_MASK))
3857 goto fail;
3858 nla_nest_end(msg, wme);
3859 }
3860
3861 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3862 msg = NULL;
3863 if (ret)
3864 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION "
3865 "result: %d (%s)", params->set ? "SET" : "NEW", ret,
3866 strerror(-ret));
3867 if (ret == -EEXIST)
3868 ret = 0;
3869 fail:
3870 nlmsg_free(msg);
3871 return ret;
3872 }
3873
3874
3875 static void rtnl_neigh_delete_fdb_entry(struct i802_bss *bss, const u8 *addr)
3876 {
3877 #ifdef CONFIG_LIBNL3_ROUTE
3878 struct wpa_driver_nl80211_data *drv = bss->drv;
3879 struct rtnl_neigh *rn;
3880 struct nl_addr *nl_addr;
3881 int err;
3882
3883 rn = rtnl_neigh_alloc();
3884 if (!rn)
3885 return;
3886
3887 rtnl_neigh_set_family(rn, AF_BRIDGE);
3888 rtnl_neigh_set_ifindex(rn, bss->ifindex);
3889 nl_addr = nl_addr_build(AF_BRIDGE, (void *) addr, ETH_ALEN);
3890 if (!nl_addr) {
3891 rtnl_neigh_put(rn);
3892 return;
3893 }
3894 rtnl_neigh_set_lladdr(rn, nl_addr);
3895
3896 err = rtnl_neigh_delete(drv->rtnl_sk, rn, 0);
3897 if (err < 0) {
3898 wpa_printf(MSG_DEBUG, "nl80211: bridge FDB entry delete for "
3899 MACSTR " ifindex=%d failed: %s", MAC2STR(addr),
3900 bss->ifindex, nl_geterror(err));
3901 } else {
3902 wpa_printf(MSG_DEBUG, "nl80211: deleted bridge FDB entry for "
3903 MACSTR, MAC2STR(addr));
3904 }
3905
3906 nl_addr_put(nl_addr);
3907 rtnl_neigh_put(rn);
3908 #endif /* CONFIG_LIBNL3_ROUTE */
3909 }
3910
3911
3912 static int wpa_driver_nl80211_sta_remove(struct i802_bss *bss, const u8 *addr,
3913 int deauth, u16 reason_code)
3914 {
3915 struct wpa_driver_nl80211_data *drv = bss->drv;
3916 struct nl_msg *msg;
3917 int ret;
3918
3919 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_DEL_STATION)) ||
3920 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
3921 (deauth == 0 &&
3922 nla_put_u8(msg, NL80211_ATTR_MGMT_SUBTYPE,
3923 WLAN_FC_STYPE_DISASSOC)) ||
3924 (deauth == 1 &&
3925 nla_put_u8(msg, NL80211_ATTR_MGMT_SUBTYPE,
3926 WLAN_FC_STYPE_DEAUTH)) ||
3927 (reason_code &&
3928 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code))) {
3929 nlmsg_free(msg);
3930 return -ENOBUFS;
3931 }
3932
3933 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3934 wpa_printf(MSG_DEBUG, "nl80211: sta_remove -> DEL_STATION %s " MACSTR
3935 " --> %d (%s)",
3936 bss->ifname, MAC2STR(addr), ret, strerror(-ret));
3937
3938 if (drv->rtnl_sk)
3939 rtnl_neigh_delete_fdb_entry(bss, addr);
3940
3941 if (ret == -ENOENT)
3942 return 0;
3943 return ret;
3944 }
3945
3946
3947 void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, int ifidx)
3948 {
3949 struct nl_msg *msg;
3950 struct wpa_driver_nl80211_data *drv2;
3951
3952 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx);
3953
3954 /* stop listening for EAPOL on this interface */
3955 dl_list_for_each(drv2, &drv->global->interfaces,
3956 struct wpa_driver_nl80211_data, list)
3957 del_ifidx(drv2, ifidx);
3958
3959 msg = nl80211_ifindex_msg(drv, ifidx, 0, NL80211_CMD_DEL_INTERFACE);
3960 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
3961 return;
3962 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx);
3963 }
3964
3965
3966 static const char * nl80211_iftype_str(enum nl80211_iftype mode)
3967 {
3968 switch (mode) {
3969 case NL80211_IFTYPE_ADHOC:
3970 return "ADHOC";
3971 case NL80211_IFTYPE_STATION:
3972 return "STATION";
3973 case NL80211_IFTYPE_AP:
3974 return "AP";
3975 case NL80211_IFTYPE_AP_VLAN:
3976 return "AP_VLAN";
3977 case NL80211_IFTYPE_WDS:
3978 return "WDS";
3979 case NL80211_IFTYPE_MONITOR:
3980 return "MONITOR";
3981 case NL80211_IFTYPE_MESH_POINT:
3982 return "MESH_POINT";
3983 case NL80211_IFTYPE_P2P_CLIENT:
3984 return "P2P_CLIENT";
3985 case NL80211_IFTYPE_P2P_GO:
3986 return "P2P_GO";
3987 case NL80211_IFTYPE_P2P_DEVICE:
3988 return "P2P_DEVICE";
3989 default:
3990 return "unknown";
3991 }
3992 }
3993
3994
3995 static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv,
3996 const char *ifname,
3997 enum nl80211_iftype iftype,
3998 const u8 *addr, int wds,
3999 int (*handler)(struct nl_msg *, void *),
4000 void *arg)
4001 {
4002 struct nl_msg *msg;
4003 int ifidx;
4004 int ret = -ENOBUFS;
4005
4006 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)",
4007 iftype, nl80211_iftype_str(iftype));
4008
4009 msg = nl80211_cmd_msg(drv->first_bss, 0, NL80211_CMD_NEW_INTERFACE);
4010 if (!msg ||
4011 nla_put_string(msg, NL80211_ATTR_IFNAME, ifname) ||
4012 nla_put_u32(msg, NL80211_ATTR_IFTYPE, iftype))
4013 goto fail;
4014
4015 if (iftype == NL80211_IFTYPE_MONITOR) {
4016 struct nlattr *flags;
4017
4018 flags = nla_nest_start(msg, NL80211_ATTR_MNTR_FLAGS);
4019 if (!flags ||
4020 nla_put_flag(msg, NL80211_MNTR_FLAG_COOK_FRAMES))
4021 goto fail;
4022
4023 nla_nest_end(msg, flags);
4024 } else if (wds) {
4025 if (nla_put_u8(msg, NL80211_ATTR_4ADDR, wds))
4026 goto fail;
4027 }
4028
4029 /*
4030 * Tell cfg80211 that the interface belongs to the socket that created
4031 * it, and the interface should be deleted when the socket is closed.
4032 */
4033 if (nla_put_flag(msg, NL80211_ATTR_IFACE_SOCKET_OWNER))
4034 goto fail;
4035
4036 ret = send_and_recv_msgs(drv, msg, handler, arg);
4037 msg = NULL;
4038 if (ret) {
4039 fail:
4040 nlmsg_free(msg);
4041 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)",
4042 ifname, ret, strerror(-ret));
4043 return ret;
4044 }
4045
4046 if (iftype == NL80211_IFTYPE_P2P_DEVICE)
4047 return 0;
4048
4049 ifidx = if_nametoindex(ifname);
4050 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d",
4051 ifname, ifidx);
4052
4053 if (ifidx <= 0)
4054 return -1;
4055
4056 /*
4057 * Some virtual interfaces need to process EAPOL packets and events on
4058 * the parent interface. This is used mainly with hostapd.
4059 */
4060 if (drv->hostapd ||
4061 iftype == NL80211_IFTYPE_AP_VLAN ||
4062 iftype == NL80211_IFTYPE_WDS ||
4063 iftype == NL80211_IFTYPE_MONITOR) {
4064 /* start listening for EAPOL on this interface */
4065 add_ifidx(drv, ifidx);
4066 }
4067
4068 if (addr && iftype != NL80211_IFTYPE_MONITOR &&
4069 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) {
4070 nl80211_remove_iface(drv, ifidx);
4071 return -1;
4072 }
4073
4074 return ifidx;
4075 }
4076
4077
4078 int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
4079 const char *ifname, enum nl80211_iftype iftype,
4080 const u8 *addr, int wds,
4081 int (*handler)(struct nl_msg *, void *),
4082 void *arg, int use_existing)
4083 {
4084 int ret;
4085
4086 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds, handler,
4087 arg);
4088
4089 /* if error occurred and interface exists already */
4090 if (ret == -ENFILE && if_nametoindex(ifname)) {
4091 if (use_existing) {
4092 wpa_printf(MSG_DEBUG, "nl80211: Continue using existing interface %s",
4093 ifname);
4094 if (addr && iftype != NL80211_IFTYPE_MONITOR &&
4095 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname,
4096 addr) < 0 &&
4097 (linux_set_iface_flags(drv->global->ioctl_sock,
4098 ifname, 0) < 0 ||
4099 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname,
4100 addr) < 0 ||
4101 linux_set_iface_flags(drv->global->ioctl_sock,
4102 ifname, 1) < 0))
4103 return -1;
4104 return -ENFILE;
4105 }
4106 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname);
4107
4108 /* Try to remove the interface that was already there. */
4109 nl80211_remove_iface(drv, if_nametoindex(ifname));
4110
4111 /* Try to create the interface again */
4112 ret = nl80211_create_iface_once(drv, ifname, iftype, addr,
4113 wds, handler, arg);
4114 }
4115
4116 if (ret >= 0 && is_p2p_net_interface(iftype)) {
4117 wpa_printf(MSG_DEBUG,
4118 "nl80211: Interface %s created for P2P - disable 11b rates",
4119 ifname);
4120 nl80211_disable_11b_rates(drv, ret, 1);
4121 }
4122
4123 return ret;
4124 }
4125
4126
4127 static int nl80211_setup_ap(struct i802_bss *bss)
4128 {
4129 struct wpa_driver_nl80211_data *drv = bss->drv;
4130
4131 wpa_printf(MSG_DEBUG, "nl80211: Setup AP(%s) - device_ap_sme=%d use_monitor=%d",
4132 bss->ifname, drv->device_ap_sme, drv->use_monitor);
4133
4134 /*
4135 * Disable Probe Request reporting unless we need it in this way for
4136 * devices that include the AP SME, in the other case (unless using
4137 * monitor iface) we'll get it through the nl_mgmt socket instead.
4138 */
4139 if (!drv->device_ap_sme)
4140 wpa_driver_nl80211_probe_req_report(bss, 0);
4141
4142 if (!drv->device_ap_sme && !drv->use_monitor)
4143 if (nl80211_mgmt_subscribe_ap(bss))
4144 return -1;
4145
4146 if (drv->device_ap_sme && !drv->use_monitor)
4147 if (nl80211_mgmt_subscribe_ap_dev_sme(bss))
4148 return -1;
4149
4150 if (!drv->device_ap_sme && drv->use_monitor &&
4151 nl80211_create_monitor_interface(drv) &&
4152 !drv->device_ap_sme)
4153 return -1;
4154
4155 if (drv->device_ap_sme &&
4156 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) {
4157 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable "
4158 "Probe Request frame reporting in AP mode");
4159 /* Try to survive without this */
4160 }
4161
4162 return 0;
4163 }
4164
4165
4166 static void nl80211_teardown_ap(struct i802_bss *bss)
4167 {
4168 struct wpa_driver_nl80211_data *drv = bss->drv;
4169
4170 wpa_printf(MSG_DEBUG, "nl80211: Teardown AP(%s) - device_ap_sme=%d use_monitor=%d",
4171 bss->ifname, drv->device_ap_sme, drv->use_monitor);
4172 if (drv->device_ap_sme) {
4173 wpa_driver_nl80211_probe_req_report(bss, 0);
4174 if (!drv->use_monitor)
4175 nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)");
4176 } else if (drv->use_monitor)
4177 nl80211_remove_monitor_interface(drv);
4178 else
4179 nl80211_mgmt_unsubscribe(bss, "AP teardown");
4180
4181 bss->beacon_set = 0;
4182 }
4183
4184
4185 static int nl80211_send_eapol_data(struct i802_bss *bss,
4186 const u8 *addr, const u8 *data,
4187 size_t data_len)
4188 {
4189 struct sockaddr_ll ll;
4190 int ret;
4191
4192 if (bss->drv->eapol_tx_sock < 0) {
4193 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL");
4194 return -1;
4195 }
4196
4197 os_memset(&ll, 0, sizeof(ll));
4198 ll.sll_family = AF_PACKET;
4199 ll.sll_ifindex = bss->ifindex;
4200 ll.sll_protocol = htons(ETH_P_PAE);
4201 ll.sll_halen = ETH_ALEN;
4202 os_memcpy(ll.sll_addr, addr, ETH_ALEN);
4203 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0,
4204 (struct sockaddr *) &ll, sizeof(ll));
4205 if (ret < 0)
4206 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s",
4207 strerror(errno));
4208
4209 return ret;
4210 }
4211
4212
4213 static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
4214
4215 static int wpa_driver_nl80211_hapd_send_eapol(
4216 void *priv, const u8 *addr, const u8 *data,
4217 size_t data_len, int encrypt, const u8 *own_addr, u32 flags)
4218 {
4219 struct i802_bss *bss = priv;
4220 struct wpa_driver_nl80211_data *drv = bss->drv;
4221 struct ieee80211_hdr *hdr;
4222 size_t len;
4223 u8 *pos;
4224 int res;
4225 int qos = flags & WPA_STA_WMM;
4226
4227 if (drv->device_ap_sme || !drv->use_monitor)
4228 return nl80211_send_eapol_data(bss, addr, data, data_len);
4229
4230 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 +
4231 data_len;
4232 hdr = os_zalloc(len);
4233 if (hdr == NULL) {
4234 wpa_printf(MSG_INFO, "nl80211: Failed to allocate EAPOL buffer(len=%lu)",
4235 (unsigned long) len);
4236 return -1;
4237 }
4238
4239 hdr->frame_control =
4240 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA);
4241 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS);
4242 if (encrypt)
4243 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP);
4244 if (qos) {
4245 hdr->frame_control |=
4246 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4);
4247 }
4248
4249 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN);
4250 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
4251 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
4252 pos = (u8 *) (hdr + 1);
4253
4254 if (qos) {
4255 /* Set highest priority in QoS header */
4256 pos[0] = 7;
4257 pos[1] = 0;
4258 pos += 2;
4259 }
4260
4261 memcpy(pos, rfc1042_header, sizeof(rfc1042_header));
4262 pos += sizeof(rfc1042_header);
4263 WPA_PUT_BE16(pos, ETH_P_PAE);
4264 pos += 2;
4265 memcpy(pos, data, data_len);
4266
4267 res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0,
4268 0, 0, 0, 0, NULL, 0);
4269 if (res < 0) {
4270 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - "
4271 "failed: %d (%s)",
4272 (unsigned long) len, errno, strerror(errno));
4273 }
4274 os_free(hdr);
4275
4276 return res;
4277 }
4278
4279
4280 static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr,
4281 unsigned int total_flags,
4282 unsigned int flags_or,
4283 unsigned int flags_and)
4284 {
4285 struct i802_bss *bss = priv;
4286 struct nl_msg *msg;
4287 struct nlattr *flags;
4288 struct nl80211_sta_flag_update upd;
4289
4290 wpa_printf(MSG_DEBUG, "nl80211: Set STA flags - ifname=%s addr=" MACSTR
4291 " total_flags=0x%x flags_or=0x%x flags_and=0x%x authorized=%d",
4292 bss->ifname, MAC2STR(addr), total_flags, flags_or, flags_and,
4293 !!(total_flags & WPA_STA_AUTHORIZED));
4294
4295 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_STATION)) ||
4296 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
4297 goto fail;
4298
4299 /*
4300 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This
4301 * can be removed eventually.
4302 */
4303 flags = nla_nest_start(msg, NL80211_ATTR_STA_FLAGS);
4304 if (!flags ||
4305 ((total_flags & WPA_STA_AUTHORIZED) &&
4306 nla_put_flag(msg, NL80211_STA_FLAG_AUTHORIZED)) ||
4307 ((total_flags & WPA_STA_WMM) &&
4308 nla_put_flag(msg, NL80211_STA_FLAG_WME)) ||
4309 ((total_flags & WPA_STA_SHORT_PREAMBLE) &&
4310 nla_put_flag(msg, NL80211_STA_FLAG_SHORT_PREAMBLE)) ||
4311 ((total_flags & WPA_STA_MFP) &&
4312 nla_put_flag(msg, NL80211_STA_FLAG_MFP)) ||
4313 ((total_flags & WPA_STA_TDLS_PEER) &&
4314 nla_put_flag(msg, NL80211_STA_FLAG_TDLS_PEER)))
4315 goto fail;
4316
4317 nla_nest_end(msg, flags);
4318
4319 os_memset(&upd, 0, sizeof(upd));
4320 upd.mask = sta_flags_nl80211(flags_or | ~flags_and);
4321 upd.set = sta_flags_nl80211(flags_or);
4322 if (nla_put(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd))
4323 goto fail;
4324
4325 return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
4326 fail:
4327 nlmsg_free(msg);
4328 return -ENOBUFS;
4329 }
4330
4331
4332 static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv,
4333 struct wpa_driver_associate_params *params)
4334 {
4335 enum nl80211_iftype nlmode, old_mode;
4336
4337 if (params->p2p) {
4338 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P "
4339 "group (GO)");
4340 nlmode = NL80211_IFTYPE_P2P_GO;
4341 } else
4342 nlmode = NL80211_IFTYPE_AP;
4343
4344 old_mode = drv->nlmode;
4345 if (wpa_driver_nl80211_set_mode(drv->first_bss, nlmode)) {
4346 nl80211_remove_monitor_interface(drv);
4347 return -1;
4348 }
4349
4350 if (params->freq.freq &&
4351 nl80211_set_channel(drv->first_bss, &params->freq, 0)) {
4352 if (old_mode != nlmode)
4353 wpa_driver_nl80211_set_mode(drv->first_bss, old_mode);
4354 nl80211_remove_monitor_interface(drv);
4355 return -1;
4356 }
4357
4358 return 0;
4359 }
4360
4361
4362 static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv,
4363 int reset_mode)
4364 {
4365 struct nl_msg *msg;
4366 int ret;
4367
4368 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_LEAVE_IBSS);
4369 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4370 if (ret) {
4371 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d "
4372 "(%s)", ret, strerror(-ret));
4373 } else {
4374 wpa_printf(MSG_DEBUG,
4375 "nl80211: Leave IBSS request sent successfully");
4376 }
4377
4378 if (reset_mode &&
4379 wpa_driver_nl80211_set_mode(drv->first_bss,
4380 NL80211_IFTYPE_STATION)) {
4381 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into "
4382 "station mode");
4383 }
4384
4385 return ret;
4386 }
4387
4388
4389 static int nl80211_ht_vht_overrides(struct nl_msg *msg,
4390 struct wpa_driver_associate_params *params)
4391 {
4392 if (params->disable_ht && nla_put_flag(msg, NL80211_ATTR_DISABLE_HT))
4393 return -1;
4394
4395 if (params->htcaps && params->htcaps_mask) {
4396 int sz = sizeof(struct ieee80211_ht_capabilities);
4397 wpa_hexdump(MSG_DEBUG, " * htcaps", params->htcaps, sz);
4398 wpa_hexdump(MSG_DEBUG, " * htcaps_mask",
4399 params->htcaps_mask, sz);
4400 if (nla_put(msg, NL80211_ATTR_HT_CAPABILITY, sz,
4401 params->htcaps) ||
4402 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz,
4403 params->htcaps_mask))
4404 return -1;
4405 }
4406
4407 #ifdef CONFIG_VHT_OVERRIDES
4408 if (params->disable_vht) {
4409 wpa_printf(MSG_DEBUG, " * VHT disabled");
4410 if (nla_put_flag(msg, NL80211_ATTR_DISABLE_VHT))
4411 return -1;
4412 }
4413
4414 if (params->vhtcaps && params->vhtcaps_mask) {
4415 int sz = sizeof(struct ieee80211_vht_capabilities);
4416 wpa_hexdump(MSG_DEBUG, " * vhtcaps", params->vhtcaps, sz);
4417 wpa_hexdump(MSG_DEBUG, " * vhtcaps_mask",
4418 params->vhtcaps_mask, sz);
4419 if (nla_put(msg, NL80211_ATTR_VHT_CAPABILITY, sz,
4420 params->vhtcaps) ||
4421 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz,
4422 params->vhtcaps_mask))
4423 return -1;
4424 }
4425 #endif /* CONFIG_VHT_OVERRIDES */
4426
4427 return 0;
4428 }
4429
4430
4431 static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv,
4432 struct wpa_driver_associate_params *params)
4433 {
4434 struct nl_msg *msg;
4435 int ret = -1;
4436 int count = 0;
4437
4438 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex);
4439
4440 if (wpa_driver_nl80211_set_mode_ibss(drv->first_bss, &params->freq)) {
4441 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into "
4442 "IBSS mode");
4443 return -1;
4444 }
4445
4446 retry:
4447 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_JOIN_IBSS)) ||
4448 params->ssid == NULL || params->ssid_len > sizeof(drv->ssid))
4449 goto fail;
4450
4451 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
4452 params->ssid, params->ssid_len);
4453 if (nla_put(msg, NL80211_ATTR_SSID, params->ssid_len, params->ssid))
4454 goto fail;
4455 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
4456 drv->ssid_len = params->ssid_len;
4457
4458 if (nl80211_put_freq_params(msg, &params->freq) < 0 ||
4459 nl80211_put_beacon_int(msg, params->beacon_int))
4460 goto fail;
4461
4462 ret = nl80211_set_conn_keys(params, msg);
4463 if (ret)
4464 goto fail;
4465
4466 if (params->bssid && params->fixed_bssid) {
4467 wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR,
4468 MAC2STR(params->bssid));
4469 if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid))
4470 goto fail;
4471 }
4472
4473 if (params->fixed_freq) {
4474 wpa_printf(MSG_DEBUG, " * fixed_freq");
4475 if (nla_put_flag(msg, NL80211_ATTR_FREQ_FIXED))
4476 goto fail;
4477 }
4478
4479 if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X ||
4480 params->key_mgmt_suite == WPA_KEY_MGMT_PSK ||
4481 params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SHA256 ||
4482 params->key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256) {
4483 wpa_printf(MSG_DEBUG, " * control port");
4484 if (nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT))
4485 goto fail;
4486 }
4487
4488 if (params->wpa_ie) {
4489 wpa_hexdump(MSG_DEBUG,
4490 " * Extra IEs for Beacon/Probe Response frames",
4491 params->wpa_ie, params->wpa_ie_len);
4492 if (nla_put(msg, NL80211_ATTR_IE, params->wpa_ie_len,
4493 params->wpa_ie))
4494 goto fail;
4495 }
4496
4497 if (nl80211_ht_vht_overrides(msg, params) < 0)
4498 return -1;
4499
4500 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4501 msg = NULL;
4502 if (ret) {
4503 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)",
4504 ret, strerror(-ret));
4505 count++;
4506 if (ret == -EALREADY && count == 1) {
4507 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after "
4508 "forced leave");
4509 nl80211_leave_ibss(drv, 0);
4510 nlmsg_free(msg);
4511 goto retry;
4512 }
4513 } else {
4514 wpa_printf(MSG_DEBUG,
4515 "nl80211: Join IBSS request sent successfully");
4516 }
4517
4518 fail:
4519 nlmsg_free(msg);
4520 return ret;
4521 }
4522
4523
4524 static int nl80211_connect_common(struct wpa_driver_nl80211_data *drv,
4525 struct wpa_driver_associate_params *params,
4526 struct nl_msg *msg)
4527 {
4528 if (params->bssid) {
4529 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
4530 MAC2STR(params->bssid));
4531 if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid))
4532 return -1;
4533 }
4534
4535 if (params->bssid_hint) {
4536 wpa_printf(MSG_DEBUG, " * bssid_hint=" MACSTR,
4537 MAC2STR(params->bssid_hint));
4538 if (nla_put(msg, NL80211_ATTR_MAC_HINT, ETH_ALEN,
4539 params->bssid_hint))
4540 return -1;
4541 }
4542
4543 if (params->freq.freq) {
4544 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq.freq);
4545 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
4546 params->freq.freq))
4547 return -1;
4548 drv->assoc_freq = params->freq.freq;
4549 } else
4550 drv->assoc_freq = 0;
4551
4552 if (params->freq_hint) {
4553 wpa_printf(MSG_DEBUG, " * freq_hint=%d", params->freq_hint);
4554 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ_HINT,
4555 params->freq_hint))
4556 return -1;
4557 }
4558
4559 if (params->bg_scan_period >= 0) {
4560 wpa_printf(MSG_DEBUG, " * bg scan period=%d",
4561 params->bg_scan_period);
4562 if (nla_put_u16(msg, NL80211_ATTR_BG_SCAN_PERIOD,
4563 params->bg_scan_period))
4564 return -1;
4565 }
4566
4567 if (params->ssid) {
4568 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
4569 params->ssid, params->ssid_len);
4570 if (nla_put(msg, NL80211_ATTR_SSID, params->ssid_len,
4571 params->ssid))
4572 return -1;
4573 if (params->ssid_len > sizeof(drv->ssid))
4574 return -1;
4575 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
4576 drv->ssid_len = params->ssid_len;
4577 }
4578
4579 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
4580 if (params->wpa_ie &&
4581 nla_put(msg, NL80211_ATTR_IE, params->wpa_ie_len, params->wpa_ie))
4582 return -1;
4583
4584 if (params->wpa_proto) {
4585 enum nl80211_wpa_versions ver = 0;
4586
4587 if (params->wpa_proto & WPA_PROTO_WPA)
4588 ver |= NL80211_WPA_VERSION_1;
4589 if (params->wpa_proto & WPA_PROTO_RSN)
4590 ver |= NL80211_WPA_VERSION_2;
4591
4592 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver);
4593 if (nla_put_u32(msg, NL80211_ATTR_WPA_VERSIONS, ver))
4594 return -1;
4595 }
4596
4597 if (params->pairwise_suite != WPA_CIPHER_NONE) {
4598 u32 cipher = wpa_cipher_to_cipher_suite(params->pairwise_suite);
4599 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher);
4600 if (nla_put_u32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE,
4601 cipher))
4602 return -1;
4603 }
4604
4605 if (params->group_suite == WPA_CIPHER_GTK_NOT_USED &&
4606 !(drv->capa.enc & WPA_DRIVER_CAPA_ENC_GTK_NOT_USED)) {
4607 /*
4608 * This is likely to work even though many drivers do not
4609 * advertise support for operations without GTK.
4610 */
4611 wpa_printf(MSG_DEBUG, " * skip group cipher configuration for GTK_NOT_USED due to missing driver support advertisement");
4612 } else if (params->group_suite != WPA_CIPHER_NONE) {
4613 u32 cipher = wpa_cipher_to_cipher_suite(params->group_suite);
4614 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher);
4615 if (nla_put_u32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher))
4616 return -1;
4617 }
4618
4619 if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X ||
4620 params->key_mgmt_suite == WPA_KEY_MGMT_PSK ||
4621 params->key_mgmt_suite == WPA_KEY_MGMT_FT_IEEE8021X ||
4622 params->key_mgmt_suite == WPA_KEY_MGMT_FT_PSK ||
4623 params->key_mgmt_suite == WPA_KEY_MGMT_CCKM ||
4624 params->key_mgmt_suite == WPA_KEY_MGMT_OSEN ||
4625 params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SHA256 ||
4626 params->key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256 ||
4627 params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SUITE_B ||
4628 params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SUITE_B_192) {
4629 int mgmt = WLAN_AKM_SUITE_PSK;
4630
4631 switch (params->key_mgmt_suite) {
4632 case WPA_KEY_MGMT_CCKM:
4633 mgmt = WLAN_AKM_SUITE_CCKM;
4634 break;
4635 case WPA_KEY_MGMT_IEEE8021X:
4636 mgmt = WLAN_AKM_SUITE_8021X;
4637 break;
4638 case WPA_KEY_MGMT_FT_IEEE8021X:
4639 mgmt = WLAN_AKM_SUITE_FT_8021X;
4640 break;
4641 case WPA_KEY_MGMT_FT_PSK:
4642 mgmt = WLAN_AKM_SUITE_FT_PSK;
4643 break;
4644 case WPA_KEY_MGMT_IEEE8021X_SHA256:
4645 mgmt = WLAN_AKM_SUITE_8021X_SHA256;
4646 break;
4647 case WPA_KEY_MGMT_PSK_SHA256:
4648 mgmt = WLAN_AKM_SUITE_PSK_SHA256;
4649 break;
4650 case WPA_KEY_MGMT_OSEN:
4651 mgmt = WLAN_AKM_SUITE_OSEN;
4652 break;
4653 case WPA_KEY_MGMT_IEEE8021X_SUITE_B:
4654 mgmt = WLAN_AKM_SUITE_8021X_SUITE_B;
4655 break;
4656 case WPA_KEY_MGMT_IEEE8021X_SUITE_B_192:
4657 mgmt = WLAN_AKM_SUITE_8021X_SUITE_B_192;
4658 break;
4659 case WPA_KEY_MGMT_PSK:
4660 default:
4661 mgmt = WLAN_AKM_SUITE_PSK;
4662 break;
4663 }
4664 wpa_printf(MSG_DEBUG, " * akm=0x%x", mgmt);
4665 if (nla_put_u32(msg, NL80211_ATTR_AKM_SUITES, mgmt))
4666 return -1;
4667 }
4668
4669 if (nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT))
4670 return -1;
4671
4672 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED &&
4673 nla_put_u32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED))
4674 return -1;
4675
4676 if (params->rrm_used) {
4677 u32 drv_rrm_flags = drv->capa.rrm_flags;
4678 if (!(drv_rrm_flags &
4679 WPA_DRIVER_FLAGS_DS_PARAM_SET_IE_IN_PROBES) ||
4680 !(drv_rrm_flags & WPA_DRIVER_FLAGS_QUIET) ||
4681 nla_put_flag(msg, NL80211_ATTR_USE_RRM))
4682 return -1;
4683 }
4684
4685 if (nl80211_ht_vht_overrides(msg, params) < 0)
4686 return -1;
4687
4688 if (params->p2p)
4689 wpa_printf(MSG_DEBUG, " * P2P group");
4690
4691 return 0;
4692 }
4693
4694
4695 static int wpa_driver_nl80211_try_connect(
4696 struct wpa_driver_nl80211_data *drv,
4697 struct wpa_driver_associate_params *params)
4698 {
4699 struct nl_msg *msg;
4700 enum nl80211_auth_type type;
4701 int ret;
4702 int algs;
4703
4704 #ifdef CONFIG_DRIVER_NL80211_QCA
4705 if (params->req_key_mgmt_offload && params->psk &&
4706 (params->key_mgmt_suite == WPA_KEY_MGMT_PSK ||
4707 params->key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256 ||
4708 params->key_mgmt_suite == WPA_KEY_MGMT_FT_PSK)) {
4709 wpa_printf(MSG_DEBUG, "nl80211: Key management set PSK");
4710 ret = issue_key_mgmt_set_key(drv, params->psk, 32);
4711 if (ret)
4712 return ret;
4713 }
4714 #endif /* CONFIG_DRIVER_NL80211_QCA */
4715
4716 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex);
4717 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_CONNECT);
4718 if (!msg)
4719 return -1;
4720
4721 ret = nl80211_connect_common(drv, params, msg);
4722 if (ret)
4723 goto fail;
4724
4725 algs = 0;
4726 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
4727 algs++;
4728 if (params->auth_alg & WPA_AUTH_ALG_SHARED)
4729 algs++;
4730 if (params->auth_alg & WPA_AUTH_ALG_LEAP)
4731 algs++;
4732 if (algs > 1) {
4733 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic "
4734 "selection");
4735 goto skip_auth_type;
4736 }
4737
4738 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
4739 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
4740 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
4741 type = NL80211_AUTHTYPE_SHARED_KEY;
4742 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
4743 type = NL80211_AUTHTYPE_NETWORK_EAP;
4744 else if (params->auth_alg & WPA_AUTH_ALG_FT)
4745 type = NL80211_AUTHTYPE_FT;
4746 else
4747 goto fail;
4748
4749 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
4750 if (nla_put_u32(msg, NL80211_ATTR_AUTH_TYPE, type))
4751 goto fail;
4752
4753 skip_auth_type:
4754 ret = nl80211_set_conn_keys(params, msg);
4755 if (ret)
4756 goto fail;
4757
4758 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4759 msg = NULL;
4760 if (ret) {
4761 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d "
4762 "(%s)", ret, strerror(-ret));
4763 } else {
4764 wpa_printf(MSG_DEBUG,
4765 "nl80211: Connect request send successfully");
4766 }
4767
4768 fail:
4769 nlmsg_free(msg);
4770 return ret;
4771
4772 }
4773
4774
4775 static int wpa_driver_nl80211_connect(
4776 struct wpa_driver_nl80211_data *drv,
4777 struct wpa_driver_associate_params *params)
4778 {
4779 int ret;
4780
4781 /* Store the connection attempted bssid for future use */
4782 if (params->bssid)
4783 os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN);
4784 else
4785 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN);
4786
4787 ret = wpa_driver_nl80211_try_connect(drv, params);
4788 if (ret == -EALREADY) {
4789 /*
4790 * cfg80211 does not currently accept new connections if
4791 * we are already connected. As a workaround, force
4792 * disconnection and try again.
4793 */
4794 wpa_printf(MSG_DEBUG, "nl80211: Explicitly "
4795 "disconnecting before reassociation "
4796 "attempt");
4797 if (wpa_driver_nl80211_disconnect(
4798 drv, WLAN_REASON_PREV_AUTH_NOT_VALID))
4799 return -1;
4800 ret = wpa_driver_nl80211_try_connect(drv, params);
4801 }
4802 return ret;
4803 }
4804
4805
4806 static int wpa_driver_nl80211_associate(
4807 void *priv, struct wpa_driver_associate_params *params)
4808 {
4809 struct i802_bss *bss = priv;
4810 struct wpa_driver_nl80211_data *drv = bss->drv;
4811 int ret = -1;
4812 struct nl_msg *msg;
4813
4814 nl80211_unmask_11b_rates(bss);
4815
4816 if (params->mode == IEEE80211_MODE_AP)
4817 return wpa_driver_nl80211_ap(drv, params);
4818
4819 if (params->mode == IEEE80211_MODE_IBSS)
4820 return wpa_driver_nl80211_ibss(drv, params);
4821
4822 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) {
4823 enum nl80211_iftype nlmode = params->p2p ?
4824 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
4825
4826 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0)
4827 return -1;
4828 return wpa_driver_nl80211_connect(drv, params);
4829 }
4830
4831 nl80211_mark_disconnected(drv);
4832
4833 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)",
4834 drv->ifindex);
4835 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_ASSOCIATE);
4836 if (!msg)
4837 return -1;
4838
4839 ret = nl80211_connect_common(drv, params, msg);
4840 if (ret)
4841 goto fail;
4842
4843 if (params->prev_bssid) {
4844 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR,
4845 MAC2STR(params->prev_bssid));
4846 if (nla_put(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN,
4847 params->prev_bssid))
4848 goto fail;
4849 }
4850
4851 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4852 msg = NULL;
4853 if (ret) {
4854 wpa_dbg(drv->ctx, MSG_DEBUG,
4855 "nl80211: MLME command failed (assoc): ret=%d (%s)",
4856 ret, strerror(-ret));
4857 nl80211_dump_scan(drv);
4858 } else {
4859 wpa_printf(MSG_DEBUG,
4860 "nl80211: Association request send successfully");
4861 }
4862
4863 fail:
4864 nlmsg_free(msg);
4865 return ret;
4866 }
4867
4868
4869 static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv,
4870 int ifindex, enum nl80211_iftype mode)
4871 {
4872 struct nl_msg *msg;
4873 int ret = -ENOBUFS;
4874
4875 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)",
4876 ifindex, mode, nl80211_iftype_str(mode));
4877
4878 msg = nl80211_cmd_msg(drv->first_bss, 0, NL80211_CMD_SET_INTERFACE);
4879 if (!msg || nla_put_u32(msg, NL80211_ATTR_IFTYPE, mode))
4880 goto fail;
4881
4882 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4883 msg = NULL;
4884 if (!ret)
4885 return 0;
4886 fail:
4887 nlmsg_free(msg);
4888 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:"
4889 " %d (%s)", ifindex, mode, ret, strerror(-ret));
4890 return ret;
4891 }
4892
4893
4894 static int wpa_driver_nl80211_set_mode_impl(
4895 struct i802_bss *bss,
4896 enum nl80211_iftype nlmode,
4897 struct hostapd_freq_params *desired_freq_params)
4898 {
4899 struct wpa_driver_nl80211_data *drv = bss->drv;
4900 int ret = -1;
4901 int i;
4902 int was_ap = is_ap_interface(drv->nlmode);
4903 int res;
4904 int mode_switch_res;
4905
4906 mode_switch_res = nl80211_set_mode(drv, drv->ifindex, nlmode);
4907 if (mode_switch_res && nlmode == nl80211_get_ifmode(bss))
4908 mode_switch_res = 0;
4909
4910 if (mode_switch_res == 0) {
4911 drv->nlmode = nlmode;
4912 ret = 0;
4913 goto done;
4914 }
4915
4916 if (mode_switch_res == -ENODEV)
4917 return -1;
4918
4919 if (nlmode == drv->nlmode) {
4920 wpa_printf(MSG_DEBUG, "nl80211: Interface already in "
4921 "requested mode - ignore error");
4922 ret = 0;
4923 goto done; /* Already in the requested mode */
4924 }
4925
4926 /* mac80211 doesn't allow mode changes while the device is up, so
4927 * take the device down, try to set the mode again, and bring the
4928 * device back up.
4929 */
4930 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting "
4931 "interface down");
4932 for (i = 0; i < 10; i++) {
4933 res = i802_set_iface_flags(bss, 0);
4934 if (res == -EACCES || res == -ENODEV)
4935 break;
4936 if (res != 0) {
4937 wpa_printf(MSG_DEBUG, "nl80211: Failed to set "
4938 "interface down");
4939 os_sleep(0, 100000);
4940 continue;
4941 }
4942
4943 /*
4944 * Setting the mode will fail for some drivers if the phy is
4945 * on a frequency that the mode is disallowed in.
4946 */
4947 if (desired_freq_params) {
4948 res = nl80211_set_channel(bss, desired_freq_params, 0);
4949 if (res) {
4950 wpa_printf(MSG_DEBUG,
4951 "nl80211: Failed to set frequency on interface");
4952 }
4953 }
4954
4955 /* Try to set the mode again while the interface is down */
4956 mode_switch_res = nl80211_set_mode(drv, drv->ifindex, nlmode);
4957 if (mode_switch_res == -EBUSY) {
4958 wpa_printf(MSG_DEBUG,
4959 "nl80211: Delaying mode set while interface going down");
4960 os_sleep(0, 100000);
4961 continue;
4962 }
4963 ret = mode_switch_res;
4964 break;
4965 }
4966
4967 if (!ret) {
4968 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while "
4969 "interface is down");
4970 drv->nlmode = nlmode;
4971 drv->ignore_if_down_event = 1;
4972 }
4973
4974 /* Bring the interface back up */
4975 res = linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1);
4976 if (res != 0) {
4977 wpa_printf(MSG_DEBUG,
4978 "nl80211: Failed to set interface up after switching mode");
4979 ret = -1;
4980 }
4981
4982 done:
4983 if (ret) {
4984 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d "
4985 "from %d failed", nlmode, drv->nlmode);
4986 return ret;
4987 }
4988
4989 if (is_p2p_net_interface(nlmode)) {
4990 wpa_printf(MSG_DEBUG,
4991 "nl80211: Interface %s mode change to P2P - disable 11b rates",
4992 bss->ifname);
4993 nl80211_disable_11b_rates(drv, drv->ifindex, 1);
4994 } else if (drv->disabled_11b_rates) {
4995 wpa_printf(MSG_DEBUG,
4996 "nl80211: Interface %s mode changed to non-P2P - re-enable 11b rates",
4997 bss->ifname);
4998 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
4999 }
5000
5001 if (is_ap_interface(nlmode)) {
5002 nl80211_mgmt_unsubscribe(bss, "start AP");
5003 /* Setup additional AP mode functionality if needed */
5004 if (nl80211_setup_ap(bss))
5005 return -1;
5006 } else if (was_ap) {
5007 /* Remove additional AP mode functionality */
5008 nl80211_teardown_ap(bss);
5009 } else {
5010 nl80211_mgmt_unsubscribe(bss, "mode change");
5011 }
5012
5013 if (is_mesh_interface(nlmode) &&
5014 nl80211_mgmt_subscribe_mesh(bss))
5015 return -1;
5016
5017 if (!bss->in_deinit && !is_ap_interface(nlmode) &&
5018 !is_mesh_interface(nlmode) &&
5019 nl80211_mgmt_subscribe_non_ap(bss) < 0)
5020 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action "
5021 "frame processing - ignore for now");
5022
5023 return 0;
5024 }
5025
5026
5027 int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
5028 enum nl80211_iftype nlmode)
5029 {
5030 return wpa_driver_nl80211_set_mode_impl(bss, nlmode, NULL);
5031 }
5032
5033
5034 static int wpa_driver_nl80211_set_mode_ibss(struct i802_bss *bss,
5035 struct hostapd_freq_params *freq)
5036 {
5037 return wpa_driver_nl80211_set_mode_impl(bss, NL80211_IFTYPE_ADHOC,
5038 freq);
5039 }
5040
5041
5042 static int wpa_driver_nl80211_get_capa(void *priv,
5043 struct wpa_driver_capa *capa)
5044 {
5045 struct i802_bss *bss = priv;
5046 struct wpa_driver_nl80211_data *drv = bss->drv;
5047
5048 if (!drv->has_capability)
5049 return -1;
5050 os_memcpy(capa, &drv->capa, sizeof(*capa));
5051 if (drv->extended_capa && drv->extended_capa_mask) {
5052 capa->extended_capa = drv->extended_capa;
5053 capa->extended_capa_mask = drv->extended_capa_mask;
5054 capa->extended_capa_len = drv->extended_capa_len;
5055 }
5056
5057 return 0;
5058 }
5059
5060
5061 static int wpa_driver_nl80211_set_operstate(void *priv, int state)
5062 {
5063 struct i802_bss *bss = priv;
5064 struct wpa_driver_nl80211_data *drv = bss->drv;
5065
5066 wpa_printf(MSG_DEBUG, "nl80211: Set %s operstate %d->%d (%s)",
5067 bss->ifname, drv->operstate, state,
5068 state ? "UP" : "DORMANT");
5069 drv->operstate = state;
5070 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1,
5071 state ? IF_OPER_UP : IF_OPER_DORMANT);
5072 }
5073
5074
5075 static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized)
5076 {
5077 struct i802_bss *bss = priv;
5078 struct wpa_driver_nl80211_data *drv = bss->drv;
5079 struct nl_msg *msg;
5080 struct nl80211_sta_flag_update upd;
5081 int ret;
5082
5083 if (!drv->associated && is_zero_ether_addr(drv->bssid) && !authorized) {
5084 wpa_printf(MSG_DEBUG, "nl80211: Skip set_supp_port(unauthorized) while not associated");
5085 return 0;
5086 }
5087
5088 wpa_printf(MSG_DEBUG, "nl80211: Set supplicant port %sauthorized for "
5089 MACSTR, authorized ? "" : "un", MAC2STR(drv->bssid));
5090
5091 os_memset(&upd, 0, sizeof(upd));
5092 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED);
5093 if (authorized)
5094 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED);
5095
5096 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_STATION)) ||
5097 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid) ||
5098 nla_put(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd)) {
5099 nlmsg_free(msg);
5100 return -ENOBUFS;
5101 }
5102
5103 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5104 if (!ret)
5105 return 0;
5106 wpa_printf(MSG_DEBUG, "nl80211: Failed to set STA flag: %d (%s)",
5107 ret, strerror(-ret));
5108 return ret;
5109 }
5110
5111
5112 /* Set kernel driver on given frequency (MHz) */
5113 static int i802_set_freq(void *priv, struct hostapd_freq_params *freq)
5114 {
5115 struct i802_bss *bss = priv;
5116 return nl80211_set_channel(bss, freq, 0);
5117 }
5118
5119
5120 static inline int min_int(int a, int b)
5121 {
5122 if (a < b)
5123 return a;
5124 return b;
5125 }
5126
5127
5128 static int get_key_handler(struct nl_msg *msg, void *arg)
5129 {
5130 struct nlattr *tb[NL80211_ATTR_MAX + 1];
5131 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
5132
5133 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
5134 genlmsg_attrlen(gnlh, 0), NULL);
5135
5136 /*
5137 * TODO: validate the key index and mac address!
5138 * Otherwise, there's a race condition as soon as
5139 * the kernel starts sending key notifications.
5140 */
5141
5142 if (tb[NL80211_ATTR_KEY_SEQ])
5143 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]),
5144 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6));
5145 return NL_SKIP;
5146 }
5147
5148
5149 static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
5150 int idx, u8 *seq)
5151 {
5152 struct i802_bss *bss = priv;
5153 struct wpa_driver_nl80211_data *drv = bss->drv;
5154 struct nl_msg *msg;
5155
5156 msg = nl80211_ifindex_msg(drv, if_nametoindex(iface), 0,
5157 NL80211_CMD_GET_KEY);
5158 if (!msg ||
5159 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
5160 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, idx)) {
5161 nlmsg_free(msg);
5162 return -ENOBUFS;
5163 }
5164
5165 memset(seq, 0, 6);
5166
5167 return send_and_recv_msgs(drv, msg, get_key_handler, seq);
5168 }
5169
5170
5171 static int i802_set_rts(void *priv, int rts)
5172 {
5173 struct i802_bss *bss = priv;
5174 struct wpa_driver_nl80211_data *drv = bss->drv;
5175 struct nl_msg *msg;
5176 int ret;
5177 u32 val;
5178
5179 if (rts >= 2347)
5180 val = (u32) -1;
5181 else
5182 val = rts;
5183
5184 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_SET_WIPHY)) ||
5185 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val)) {
5186 nlmsg_free(msg);
5187 return -ENOBUFS;
5188 }
5189
5190 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5191 if (!ret)
5192 return 0;
5193 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: "
5194 "%d (%s)", rts, ret, strerror(-ret));
5195 return ret;
5196 }
5197
5198
5199 static int i802_set_frag(void *priv, int frag)
5200 {
5201 struct i802_bss *bss = priv;
5202 struct wpa_driver_nl80211_data *drv = bss->drv;
5203 struct nl_msg *msg;
5204 int ret;
5205 u32 val;
5206
5207 if (frag >= 2346)
5208 val = (u32) -1;
5209 else
5210 val = frag;
5211
5212 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_SET_WIPHY)) ||
5213 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val)) {
5214 nlmsg_free(msg);
5215 return -ENOBUFS;
5216 }
5217
5218 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5219 if (!ret)
5220 return 0;
5221 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold "
5222 "%d: %d (%s)", frag, ret, strerror(-ret));
5223 return ret;
5224 }
5225
5226
5227 static int i802_flush(void *priv)
5228 {
5229 struct i802_bss *bss = priv;
5230 struct nl_msg *msg;
5231 int res;
5232
5233 wpa_printf(MSG_DEBUG, "nl80211: flush -> DEL_STATION %s (all)",
5234 bss->ifname);
5235
5236 /*
5237 * XXX: FIX! this needs to flush all VLANs too
5238 */
5239 msg = nl80211_bss_msg(bss, 0, NL80211_CMD_DEL_STATION);
5240 res = send_and_recv_msgs(bss->drv, msg, NULL, NULL);
5241 if (res) {
5242 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d "
5243 "(%s)", res, strerror(-res));
5244 }
5245 return res;
5246 }
5247
5248
5249 static int get_sta_handler(struct nl_msg *msg, void *arg)
5250 {
5251 struct nlattr *tb[NL80211_ATTR_MAX + 1];
5252 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
5253 struct hostap_sta_driver_data *data = arg;
5254 struct nlattr *stats[NL80211_STA_INFO_MAX + 1];
5255 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
5256 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
5257 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
5258 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
5259 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
5260 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
5261 [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 },
5262 };
5263
5264 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
5265 genlmsg_attrlen(gnlh, 0), NULL);
5266
5267 /*
5268 * TODO: validate the interface and mac address!
5269 * Otherwise, there's a race condition as soon as
5270 * the kernel starts sending station notifications.
5271 */
5272
5273 if (!tb[NL80211_ATTR_STA_INFO]) {
5274 wpa_printf(MSG_DEBUG, "sta stats missing!");
5275 return NL_SKIP;
5276 }
5277 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX,
5278 tb[NL80211_ATTR_STA_INFO],
5279 stats_policy)) {
5280 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!");
5281 return NL_SKIP;
5282 }
5283
5284 if (stats[NL80211_STA_INFO_INACTIVE_TIME])
5285 data->inactive_msec =
5286 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]);
5287 if (stats[NL80211_STA_INFO_RX_BYTES])
5288 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]);
5289 if (stats[NL80211_STA_INFO_TX_BYTES])
5290 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]);
5291 if (stats[NL80211_STA_INFO_RX_PACKETS])
5292 data->rx_packets =
5293 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]);
5294 if (stats[NL80211_STA_INFO_TX_PACKETS])
5295 data->tx_packets =
5296 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]);
5297 if (stats[NL80211_STA_INFO_TX_FAILED])
5298 data->tx_retry_failed =
5299 nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]);
5300
5301 return NL_SKIP;
5302 }
5303
5304 static int i802_read_sta_data(struct i802_bss *bss,
5305 struct hostap_sta_driver_data *data,
5306 const u8 *addr)
5307 {
5308 struct nl_msg *msg;
5309
5310 os_memset(data, 0, sizeof(*data));
5311
5312 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_GET_STATION)) ||
5313 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) {
5314 nlmsg_free(msg);
5315 return -ENOBUFS;
5316 }
5317
5318 return send_and_recv_msgs(bss->drv, msg, get_sta_handler, data);
5319 }
5320
5321
5322 static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
5323 int cw_min, int cw_max, int burst_time)
5324 {
5325 struct i802_bss *bss = priv;
5326 struct wpa_driver_nl80211_data *drv = bss->drv;
5327 struct nl_msg *msg;
5328 struct nlattr *txq, *params;
5329
5330 msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_WIPHY);
5331 if (!msg)
5332 return -1;
5333
5334 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS);
5335 if (!txq)
5336 goto fail;
5337
5338 /* We are only sending parameters for a single TXQ at a time */
5339 params = nla_nest_start(msg, 1);
5340 if (!params)
5341 goto fail;
5342
5343 switch (queue) {
5344 case 0:
5345 if (nla_put_u8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO))
5346 goto fail;
5347 break;
5348 case 1:
5349 if (nla_put_u8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI))
5350 goto fail;
5351 break;
5352 case 2:
5353 if (nla_put_u8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE))
5354 goto fail;
5355 break;
5356 case 3:
5357 if (nla_put_u8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK))
5358 goto fail;
5359 break;
5360 }
5361 /* Burst time is configured in units of 0.1 msec and TXOP parameter in
5362 * 32 usec, so need to convert the value here. */
5363 if (nla_put_u16(msg, NL80211_TXQ_ATTR_TXOP,
5364 (burst_time * 100 + 16) / 32) ||
5365 nla_put_u16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min) ||
5366 nla_put_u16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max) ||
5367 nla_put_u8(msg, NL80211_TXQ_ATTR_AIFS, aifs))
5368 goto fail;
5369
5370 nla_nest_end(msg, params);
5371
5372 nla_nest_end(msg, txq);
5373
5374 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
5375 return 0;
5376 msg = NULL;
5377 fail:
5378 nlmsg_free(msg);
5379 return -1;
5380 }
5381
5382
5383 static int i802_set_sta_vlan(struct i802_bss *bss, const u8 *addr,
5384 const char *ifname, int vlan_id)
5385 {
5386 struct wpa_driver_nl80211_data *drv = bss->drv;
5387 struct nl_msg *msg;
5388 int ret;
5389
5390 wpa_printf(MSG_DEBUG, "nl80211: %s[%d]: set_sta_vlan(" MACSTR
5391 ", ifname=%s[%d], vlan_id=%d)",
5392 bss->ifname, if_nametoindex(bss->ifname),
5393 MAC2STR(addr), ifname, if_nametoindex(ifname), vlan_id);
5394 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_STATION)) ||
5395 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
5396 nla_put_u32(msg, NL80211_ATTR_STA_VLAN, if_nametoindex(ifname))) {
5397 nlmsg_free(msg);
5398 return -ENOBUFS;
5399 }
5400
5401 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5402 if (ret < 0) {
5403 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr="
5404 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)",
5405 MAC2STR(addr), ifname, vlan_id, ret,
5406 strerror(-ret));
5407 }
5408 return ret;
5409 }
5410
5411
5412 static int i802_get_inact_sec(void *priv, const u8 *addr)
5413 {
5414 struct hostap_sta_driver_data data;
5415 int ret;
5416
5417 data.inactive_msec = (unsigned long) -1;
5418 ret = i802_read_sta_data(priv, &data, addr);
5419 if (ret == -ENOENT)
5420 return -ENOENT;
5421 if (ret || data.inactive_msec == (unsigned long) -1)
5422 return -1;
5423 return data.inactive_msec / 1000;
5424 }
5425
5426
5427 static int i802_sta_clear_stats(void *priv, const u8 *addr)
5428 {
5429 #if 0
5430 /* TODO */
5431 #endif
5432 return 0;
5433 }
5434
5435
5436 static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
5437 int reason)
5438 {
5439 struct i802_bss *bss = priv;
5440 struct wpa_driver_nl80211_data *drv = bss->drv;
5441 struct ieee80211_mgmt mgmt;
5442
5443 if (is_mesh_interface(drv->nlmode))
5444 return -1;
5445
5446 if (drv->device_ap_sme)
5447 return wpa_driver_nl80211_sta_remove(bss, addr, 1, reason);
5448
5449 memset(&mgmt, 0, sizeof(mgmt));
5450 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
5451 WLAN_FC_STYPE_DEAUTH);
5452 memcpy(mgmt.da, addr, ETH_ALEN);
5453 memcpy(mgmt.sa, own_addr, ETH_ALEN);
5454 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
5455 mgmt.u.deauth.reason_code = host_to_le16(reason);
5456 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
5457 IEEE80211_HDRLEN +
5458 sizeof(mgmt.u.deauth), 0, 0, 0, 0,
5459 0, NULL, 0);
5460 }
5461
5462
5463 static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
5464 int reason)
5465 {
5466 struct i802_bss *bss = priv;
5467 struct wpa_driver_nl80211_data *drv = bss->drv;
5468 struct ieee80211_mgmt mgmt;
5469
5470 if (is_mesh_interface(drv->nlmode))
5471 return -1;
5472
5473 if (drv->device_ap_sme)
5474 return wpa_driver_nl80211_sta_remove(bss, addr, 0, reason);
5475
5476 memset(&mgmt, 0, sizeof(mgmt));
5477 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
5478 WLAN_FC_STYPE_DISASSOC);
5479 memcpy(mgmt.da, addr, ETH_ALEN);
5480 memcpy(mgmt.sa, own_addr, ETH_ALEN);
5481 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
5482 mgmt.u.disassoc.reason_code = host_to_le16(reason);
5483 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
5484 IEEE80211_HDRLEN +
5485 sizeof(mgmt.u.disassoc), 0, 0, 0, 0,
5486 0, NULL, 0);
5487 }
5488
5489
5490 static void dump_ifidx(struct wpa_driver_nl80211_data *drv)
5491 {
5492 char buf[200], *pos, *end;
5493 int i, res;
5494
5495 pos = buf;
5496 end = pos + sizeof(buf);
5497
5498 for (i = 0; i < drv->num_if_indices; i++) {
5499 if (!drv->if_indices[i])
5500 continue;
5501 res = os_snprintf(pos, end - pos, " %d", drv->if_indices[i]);
5502 if (os_snprintf_error(end - pos, res))
5503 break;
5504 pos += res;
5505 }
5506 *pos = '\0';
5507
5508 wpa_printf(MSG_DEBUG, "nl80211: if_indices[%d]:%s",
5509 drv->num_if_indices, buf);
5510 }
5511
5512
5513 static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
5514 {
5515 int i;
5516 int *old;
5517
5518 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d",
5519 ifidx);
5520 if (have_ifidx(drv, ifidx)) {
5521 wpa_printf(MSG_DEBUG, "nl80211: ifindex %d already in the list",
5522 ifidx);
5523 return;
5524 }
5525 for (i = 0; i < drv->num_if_indices; i++) {
5526 if (drv->if_indices[i] == 0) {
5527 drv->if_indices[i] = ifidx;
5528 dump_ifidx(drv);
5529 return;
5530 }
5531 }
5532
5533 if (drv->if_indices != drv->default_if_indices)
5534 old = drv->if_indices;
5535 else
5536 old = NULL;
5537
5538 drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1,
5539 sizeof(int));
5540 if (!drv->if_indices) {
5541 if (!old)
5542 drv->if_indices = drv->default_if_indices;
5543 else
5544 drv->if_indices = old;
5545 wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
5546 "interfaces");
5547 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
5548 return;
5549 } else if (!old)
5550 os_memcpy(drv->if_indices, drv->default_if_indices,
5551 sizeof(drv->default_if_indices));
5552 drv->if_indices[drv->num_if_indices] = ifidx;
5553 drv->num_if_indices++;
5554 dump_ifidx(drv);
5555 }
5556
5557
5558 static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
5559 {
5560 int i;
5561
5562 for (i = 0; i < drv->num_if_indices; i++) {
5563 if (drv->if_indices[i] == ifidx) {
5564 drv->if_indices[i] = 0;
5565 break;
5566 }
5567 }
5568 dump_ifidx(drv);
5569 }
5570
5571
5572 static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
5573 {
5574 int i;
5575
5576 for (i = 0; i < drv->num_if_indices; i++)
5577 if (drv->if_indices[i] == ifidx)
5578 return 1;
5579
5580 return 0;
5581 }
5582
5583
5584 static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val,
5585 const char *bridge_ifname, char *ifname_wds)
5586 {
5587 struct i802_bss *bss = priv;
5588 struct wpa_driver_nl80211_data *drv = bss->drv;
5589 char name[IFNAMSIZ + 1];
5590
5591 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid);
5592 if (ifname_wds)
5593 os_strlcpy(ifname_wds, name, IFNAMSIZ + 1);
5594
5595 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR
5596 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name);
5597 if (val) {
5598 if (!if_nametoindex(name)) {
5599 if (nl80211_create_iface(drv, name,
5600 NL80211_IFTYPE_AP_VLAN,
5601 bss->addr, 1, NULL, NULL, 0) <
5602 0)
5603 return -1;
5604 if (bridge_ifname &&
5605 linux_br_add_if(drv->global->ioctl_sock,
5606 bridge_ifname, name) < 0)
5607 return -1;
5608 }
5609 if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) {
5610 wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA "
5611 "interface %s up", name);
5612 }
5613 return i802_set_sta_vlan(priv, addr, name, 0);
5614 } else {
5615 if (bridge_ifname)
5616 linux_br_del_if(drv->global->ioctl_sock, bridge_ifname,
5617 name);
5618
5619 i802_set_sta_vlan(priv, addr, bss->ifname, 0);
5620 nl80211_remove_iface(drv, if_nametoindex(name));
5621 return 0;
5622 }
5623 }
5624
5625
5626 static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
5627 {
5628 struct wpa_driver_nl80211_data *drv = eloop_ctx;
5629 struct sockaddr_ll lladdr;
5630 unsigned char buf[3000];
5631 int len;
5632 socklen_t fromlen = sizeof(lladdr);
5633
5634 len = recvfrom(sock, buf, sizeof(buf), 0,
5635 (struct sockaddr *)&lladdr, &fromlen);
5636 if (len < 0) {
5637 wpa_printf(MSG_ERROR, "nl80211: EAPOL recv failed: %s",
5638 strerror(errno));
5639 return;
5640 }
5641
5642 if (have_ifidx(drv, lladdr.sll_ifindex))
5643 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len);
5644 }
5645
5646
5647 static int i802_check_bridge(struct wpa_driver_nl80211_data *drv,
5648 struct i802_bss *bss,
5649 const char *brname, const char *ifname)
5650 {
5651 int br_ifindex;
5652 char in_br[IFNAMSIZ];
5653
5654 os_strlcpy(bss->brname, brname, IFNAMSIZ);
5655 br_ifindex = if_nametoindex(brname);
5656 if (br_ifindex == 0) {
5657 /*
5658 * Bridge was configured, but the bridge device does
5659 * not exist. Try to add it now.
5660 */
5661 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) {
5662 wpa_printf(MSG_ERROR, "nl80211: Failed to add the "
5663 "bridge interface %s: %s",
5664 brname, strerror(errno));
5665 return -1;
5666 }
5667 bss->added_bridge = 1;
5668 br_ifindex = if_nametoindex(brname);
5669 add_ifidx(drv, br_ifindex);
5670 }
5671 bss->br_ifindex = br_ifindex;
5672
5673 if (linux_br_get(in_br, ifname) == 0) {
5674 if (os_strcmp(in_br, brname) == 0)
5675 return 0; /* already in the bridge */
5676
5677 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from "
5678 "bridge %s", ifname, in_br);
5679 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) <
5680 0) {
5681 wpa_printf(MSG_ERROR, "nl80211: Failed to "
5682 "remove interface %s from bridge "
5683 "%s: %s",
5684 ifname, brname, strerror(errno));
5685 return -1;
5686 }
5687 }
5688
5689 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s",
5690 ifname, brname);
5691 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) {
5692 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s "
5693 "into bridge %s: %s",
5694 ifname, brname, strerror(errno));
5695 return -1;
5696 }
5697 bss->added_if_into_bridge = 1;
5698
5699 return 0;
5700 }
5701
5702
5703 static void *i802_init(struct hostapd_data *hapd,
5704 struct wpa_init_params *params)
5705 {
5706 struct wpa_driver_nl80211_data *drv;
5707 struct i802_bss *bss;
5708 size_t i;
5709 char master_ifname[IFNAMSIZ];
5710 int ifindex, br_ifindex = 0;
5711 int br_added = 0;
5712
5713 bss = wpa_driver_nl80211_drv_init(hapd, params->ifname,
5714 params->global_priv, 1,
5715 params->bssid, params->driver_params);
5716 if (bss == NULL)
5717 return NULL;
5718
5719 drv = bss->drv;
5720
5721 if (linux_br_get(master_ifname, params->ifname) == 0) {
5722 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s",
5723 params->ifname, master_ifname);
5724 br_ifindex = if_nametoindex(master_ifname);
5725 os_strlcpy(bss->brname, master_ifname, IFNAMSIZ);
5726 } else if ((params->num_bridge == 0 || !params->bridge[0]) &&
5727 linux_master_get(master_ifname, params->ifname) == 0) {
5728 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in master %s",
5729 params->ifname, master_ifname);
5730 /* start listening for EAPOL on the master interface */
5731 add_ifidx(drv, if_nametoindex(master_ifname));
5732 } else {
5733 master_ifname[0] = '\0';
5734 }
5735
5736 bss->br_ifindex = br_ifindex;
5737
5738 for (i = 0; i < params->num_bridge; i++) {
5739 if (params->bridge[i]) {
5740 ifindex = if_nametoindex(params->bridge[i]);
5741 if (ifindex)
5742 add_ifidx(drv, ifindex);
5743 if (ifindex == br_ifindex)
5744 br_added = 1;
5745 }
5746 }
5747
5748 /* start listening for EAPOL on the default AP interface */
5749 add_ifidx(drv, drv->ifindex);
5750
5751 if (params->num_bridge && params->bridge[0]) {
5752 if (i802_check_bridge(drv, bss, params->bridge[0],
5753 params->ifname) < 0)
5754 goto failed;
5755 if (os_strcmp(params->bridge[0], master_ifname) != 0)
5756 br_added = 1;
5757 }
5758
5759 if (!br_added && br_ifindex &&
5760 (params->num_bridge == 0 || !params->bridge[0]))
5761 add_ifidx(drv, br_ifindex);
5762
5763 #ifdef CONFIG_LIBNL3_ROUTE
5764 if (bss->added_if_into_bridge) {
5765 drv->rtnl_sk = nl_socket_alloc();
5766 if (drv->rtnl_sk == NULL) {
5767 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate nl_sock");
5768 goto failed;
5769 }
5770
5771 if (nl_connect(drv->rtnl_sk, NETLINK_ROUTE)) {
5772 wpa_printf(MSG_ERROR, "nl80211: Failed to connect nl_sock to NETLINK_ROUTE: %s",
5773 strerror(errno));
5774 goto failed;
5775 }
5776 }
5777 #endif /* CONFIG_LIBNL3_ROUTE */
5778
5779 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE));
5780 if (drv->eapol_sock < 0) {
5781 wpa_printf(MSG_ERROR, "nl80211: socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE) failed: %s",
5782 strerror(errno));
5783 goto failed;
5784 }
5785
5786 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL))
5787 {
5788 wpa_printf(MSG_INFO, "nl80211: Could not register read socket for eapol");
5789 goto failed;
5790 }
5791
5792 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
5793 params->own_addr))
5794 goto failed;
5795 os_memcpy(drv->perm_addr, params->own_addr, ETH_ALEN);
5796
5797 memcpy(bss->addr, params->own_addr, ETH_ALEN);
5798
5799 return bss;
5800
5801 failed:
5802 wpa_driver_nl80211_deinit(bss);
5803 return NULL;
5804 }
5805
5806
5807 static void i802_deinit(void *priv)
5808 {
5809 struct i802_bss *bss = priv;
5810 wpa_driver_nl80211_deinit(bss);
5811 }
5812
5813
5814 static enum nl80211_iftype wpa_driver_nl80211_if_type(
5815 enum wpa_driver_if_type type)
5816 {
5817 switch (type) {
5818 case WPA_IF_STATION:
5819 return NL80211_IFTYPE_STATION;
5820 case WPA_IF_P2P_CLIENT:
5821 case WPA_IF_P2P_GROUP:
5822 return NL80211_IFTYPE_P2P_CLIENT;
5823 case WPA_IF_AP_VLAN:
5824 return NL80211_IFTYPE_AP_VLAN;
5825 case WPA_IF_AP_BSS:
5826 return NL80211_IFTYPE_AP;
5827 case WPA_IF_P2P_GO:
5828 return NL80211_IFTYPE_P2P_GO;
5829 case WPA_IF_P2P_DEVICE:
5830 return NL80211_IFTYPE_P2P_DEVICE;
5831 case WPA_IF_MESH:
5832 return NL80211_IFTYPE_MESH_POINT;
5833 default:
5834 return -1;
5835 }
5836 }
5837
5838
5839 static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr)
5840 {
5841 struct wpa_driver_nl80211_data *drv;
5842 dl_list_for_each(drv, &global->interfaces,
5843 struct wpa_driver_nl80211_data, list) {
5844 if (os_memcmp(addr, drv->first_bss->addr, ETH_ALEN) == 0)
5845 return 1;
5846 }
5847 return 0;
5848 }
5849
5850
5851 static int nl80211_vif_addr(struct wpa_driver_nl80211_data *drv, u8 *new_addr)
5852 {
5853 unsigned int idx;
5854
5855 if (!drv->global)
5856 return -1;
5857
5858 os_memcpy(new_addr, drv->first_bss->addr, ETH_ALEN);
5859 for (idx = 0; idx < 64; idx++) {
5860 new_addr[0] = drv->first_bss->addr[0] | 0x02;
5861 new_addr[0] ^= idx << 2;
5862 if (!nl80211_addr_in_use(drv->global, new_addr))
5863 break;
5864 }
5865 if (idx == 64)
5866 return -1;
5867
5868 wpa_printf(MSG_DEBUG, "nl80211: Assigned new virtual interface address "
5869 MACSTR, MAC2STR(new_addr));
5870
5871 return 0;
5872 }
5873
5874
5875 struct wdev_info {
5876 u64 wdev_id;
5877 int wdev_id_set;
5878 u8 macaddr[ETH_ALEN];
5879 };
5880
5881 static int nl80211_wdev_handler(struct nl_msg *msg, void *arg)
5882 {
5883 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
5884 struct nlattr *tb[NL80211_ATTR_MAX + 1];
5885 struct wdev_info *wi = arg;
5886
5887 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
5888 genlmsg_attrlen(gnlh, 0), NULL);
5889 if (tb[NL80211_ATTR_WDEV]) {
5890 wi->wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]);
5891 wi->wdev_id_set = 1;
5892 }
5893
5894 if (tb[NL80211_ATTR_MAC])
5895 os_memcpy(wi->macaddr, nla_data(tb[NL80211_ATTR_MAC]),
5896 ETH_ALEN);
5897
5898 return NL_SKIP;
5899 }
5900
5901
5902 static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type,
5903 const char *ifname, const u8 *addr,
5904 void *bss_ctx, void **drv_priv,
5905 char *force_ifname, u8 *if_addr,
5906 const char *bridge, int use_existing,
5907 int setup_ap)
5908 {
5909 enum nl80211_iftype nlmode;
5910 struct i802_bss *bss = priv;
5911 struct wpa_driver_nl80211_data *drv = bss->drv;
5912 int ifidx;
5913 int added = 1;
5914
5915 if (addr)
5916 os_memcpy(if_addr, addr, ETH_ALEN);
5917 nlmode = wpa_driver_nl80211_if_type(type);
5918 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) {
5919 struct wdev_info p2pdev_info;
5920
5921 os_memset(&p2pdev_info, 0, sizeof(p2pdev_info));
5922 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr,
5923 0, nl80211_wdev_handler,
5924 &p2pdev_info, use_existing);
5925 if (!p2pdev_info.wdev_id_set || ifidx != 0) {
5926 wpa_printf(MSG_ERROR, "nl80211: Failed to create a P2P Device interface %s",
5927 ifname);
5928 return -1;
5929 }
5930
5931 drv->global->if_add_wdevid = p2pdev_info.wdev_id;
5932 drv->global->if_add_wdevid_set = p2pdev_info.wdev_id_set;
5933 if (!is_zero_ether_addr(p2pdev_info.macaddr))
5934 os_memcpy(if_addr, p2pdev_info.macaddr, ETH_ALEN);
5935 wpa_printf(MSG_DEBUG, "nl80211: New P2P Device interface %s (0x%llx) created",
5936 ifname,
5937 (long long unsigned int) p2pdev_info.wdev_id);
5938 } else {
5939 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr,
5940 0, NULL, NULL, use_existing);
5941 if (use_existing && ifidx == -ENFILE) {
5942 added = 0;
5943 ifidx = if_nametoindex(ifname);
5944 } else if (ifidx < 0) {
5945 return -1;
5946 }
5947 }
5948
5949 if (!addr) {
5950 if (nlmode == NL80211_IFTYPE_P2P_DEVICE)
5951 os_memcpy(if_addr, bss->addr, ETH_ALEN);
5952 else if (linux_get_ifhwaddr(drv->global->ioctl_sock,
5953 ifname, if_addr) < 0) {
5954 if (added)
5955 nl80211_remove_iface(drv, ifidx);
5956 return -1;
5957 }
5958 }
5959
5960 if (!addr &&
5961 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP ||
5962 type == WPA_IF_P2P_GO || type == WPA_IF_MESH ||
5963 type == WPA_IF_STATION)) {
5964 /* Enforce unique address */
5965 u8 new_addr[ETH_ALEN];
5966
5967 if (linux_get_ifhwaddr(drv->global->ioctl_sock, ifname,
5968 new_addr) < 0) {
5969 if (added)
5970 nl80211_remove_iface(drv, ifidx);
5971 return -1;
5972 }
5973 if (nl80211_addr_in_use(drv->global, new_addr)) {
5974 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address "
5975 "for interface %s type %d", ifname, type);
5976 if (nl80211_vif_addr(drv, new_addr) < 0) {
5977 if (added)
5978 nl80211_remove_iface(drv, ifidx);
5979 return -1;
5980 }
5981 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname,
5982 new_addr) < 0) {
5983 if (added)
5984 nl80211_remove_iface(drv, ifidx);
5985 return -1;
5986 }
5987 }
5988 os_memcpy(if_addr, new_addr, ETH_ALEN);
5989 }
5990
5991 if (type == WPA_IF_AP_BSS && setup_ap) {
5992 struct i802_bss *new_bss = os_zalloc(sizeof(*new_bss));
5993 if (new_bss == NULL) {
5994 if (added)
5995 nl80211_remove_iface(drv, ifidx);
5996 return -1;
5997 }
5998
5999 if (bridge &&
6000 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) {
6001 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new "
6002 "interface %s to a bridge %s",
6003 ifname, bridge);
6004 if (added)
6005 nl80211_remove_iface(drv, ifidx);
6006 os_free(new_bss);
6007 return -1;
6008 }
6009
6010 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1))
6011 {
6012 if (added)
6013 nl80211_remove_iface(drv, ifidx);
6014 os_free(new_bss);
6015 return -1;
6016 }
6017 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ);
6018 os_memcpy(new_bss->addr, if_addr, ETH_ALEN);
6019 new_bss->ifindex = ifidx;
6020 new_bss->drv = drv;
6021 new_bss->next = drv->first_bss->next;
6022 new_bss->freq = drv->first_bss->freq;
6023 new_bss->ctx = bss_ctx;
6024 new_bss->added_if = added;
6025 drv->first_bss->next = new_bss;
6026 if (drv_priv)
6027 *drv_priv = new_bss;
6028 nl80211_init_bss(new_bss);
6029
6030 /* Subscribe management frames for this WPA_IF_AP_BSS */
6031 if (nl80211_setup_ap(new_bss))
6032 return -1;
6033 }
6034
6035 if (drv->global)
6036 drv->global->if_add_ifindex = ifidx;
6037
6038 /*
6039 * Some virtual interfaces need to process EAPOL packets and events on
6040 * the parent interface. This is used mainly with hostapd.
6041 */
6042 if (ifidx > 0 &&
6043 (drv->hostapd ||
6044 nlmode == NL80211_IFTYPE_AP_VLAN ||
6045 nlmode == NL80211_IFTYPE_WDS ||
6046 nlmode == NL80211_IFTYPE_MONITOR))
6047 add_ifidx(drv, ifidx);
6048
6049 return 0;
6050 }
6051
6052
6053 static int wpa_driver_nl80211_if_remove(struct i802_bss *bss,
6054 enum wpa_driver_if_type type,
6055 const char *ifname)
6056 {
6057 struct wpa_driver_nl80211_data *drv = bss->drv;
6058 int ifindex = if_nametoindex(ifname);
6059
6060 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d added_if=%d",
6061 __func__, type, ifname, ifindex, bss->added_if);
6062 if (ifindex > 0 && (bss->added_if || bss->ifindex != ifindex))
6063 nl80211_remove_iface(drv, ifindex);
6064 else if (ifindex > 0 && !bss->added_if) {
6065 struct wpa_driver_nl80211_data *drv2;
6066 dl_list_for_each(drv2, &drv->global->interfaces,
6067 struct wpa_driver_nl80211_data, list)
6068 del_ifidx(drv2, ifindex);
6069 }
6070
6071 if (type != WPA_IF_AP_BSS)
6072 return 0;
6073
6074 if (bss->added_if_into_bridge) {
6075 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname,
6076 bss->ifname) < 0)
6077 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
6078 "interface %s from bridge %s: %s",
6079 bss->ifname, bss->brname, strerror(errno));
6080 }
6081 if (bss->added_bridge) {
6082 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0)
6083 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
6084 "bridge %s: %s",
6085 bss->brname, strerror(errno));
6086 }
6087
6088 if (bss != drv->first_bss) {
6089 struct i802_bss *tbss;
6090
6091 wpa_printf(MSG_DEBUG, "nl80211: Not the first BSS - remove it");
6092 for (tbss = drv->first_bss; tbss; tbss = tbss->next) {
6093 if (tbss->next == bss) {
6094 tbss->next = bss->next;
6095 /* Unsubscribe management frames */
6096 nl80211_teardown_ap(bss);
6097 nl80211_destroy_bss(bss);
6098 if (!bss->added_if)
6099 i802_set_iface_flags(bss, 0);
6100 os_free(bss);
6101 bss = NULL;
6102 break;
6103 }
6104 }
6105 if (bss)
6106 wpa_printf(MSG_INFO, "nl80211: %s - could not find "
6107 "BSS %p in the list", __func__, bss);
6108 } else {
6109 wpa_printf(MSG_DEBUG, "nl80211: First BSS - reassign context");
6110 nl80211_teardown_ap(bss);
6111 if (!bss->added_if && !drv->first_bss->next)
6112 wpa_driver_nl80211_del_beacon(drv);
6113 nl80211_destroy_bss(bss);
6114 if (!bss->added_if)
6115 i802_set_iface_flags(bss, 0);
6116 if (drv->first_bss->next) {
6117 drv->first_bss = drv->first_bss->next;
6118 drv->ctx = drv->first_bss->ctx;
6119 os_free(bss);
6120 } else {
6121 wpa_printf(MSG_DEBUG, "nl80211: No second BSS to reassign context to");
6122 }
6123 }
6124
6125 return 0;
6126 }
6127
6128
6129 static int cookie_handler(struct nl_msg *msg, void *arg)
6130 {
6131 struct nlattr *tb[NL80211_ATTR_MAX + 1];
6132 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
6133 u64 *cookie = arg;
6134 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
6135 genlmsg_attrlen(gnlh, 0), NULL);
6136 if (tb[NL80211_ATTR_COOKIE])
6137 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
6138 return NL_SKIP;
6139 }
6140
6141
6142 static int nl80211_send_frame_cmd(struct i802_bss *bss,
6143 unsigned int freq, unsigned int wait,
6144 const u8 *buf, size_t buf_len,
6145 u64 *cookie_out, int no_cck, int no_ack,
6146 int offchanok, const u16 *csa_offs,
6147 size_t csa_offs_len)
6148 {
6149 struct wpa_driver_nl80211_data *drv = bss->drv;
6150 struct nl_msg *msg;
6151 u64 cookie;
6152 int ret = -1;
6153
6154 wpa_printf(MSG_MSGDUMP, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d "
6155 "no_ack=%d offchanok=%d",
6156 freq, wait, no_cck, no_ack, offchanok);
6157 wpa_hexdump(MSG_MSGDUMP, "CMD_FRAME", buf, buf_len);
6158
6159 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_FRAME)) ||
6160 (freq && nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
6161 (wait && nla_put_u32(msg, NL80211_ATTR_DURATION, wait)) ||
6162 (offchanok && ((drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) ||
6163 drv->test_use_roc_tx) &&
6164 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK)) ||
6165 (no_cck && nla_put_flag(msg, NL80211_ATTR_TX_NO_CCK_RATE)) ||
6166 (no_ack && nla_put_flag(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK)) ||
6167 (csa_offs && nla_put(msg, NL80211_ATTR_CSA_C_OFFSETS_TX,
6168 csa_offs_len * sizeof(u16), csa_offs)) ||
6169 nla_put(msg, NL80211_ATTR_FRAME, buf_len, buf))
6170 goto fail;
6171
6172 cookie = 0;
6173 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
6174 msg = NULL;
6175 if (ret) {
6176 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d "
6177 "(%s) (freq=%u wait=%u)", ret, strerror(-ret),
6178 freq, wait);
6179 } else {
6180 wpa_printf(MSG_MSGDUMP, "nl80211: Frame TX command accepted%s; "
6181 "cookie 0x%llx", no_ack ? " (no ACK)" : "",
6182 (long long unsigned int) cookie);
6183
6184 if (cookie_out)
6185 *cookie_out = no_ack ? (u64) -1 : cookie;
6186
6187 if (drv->num_send_action_cookies == MAX_SEND_ACTION_COOKIES) {
6188 wpa_printf(MSG_DEBUG,
6189 "nl80211: Drop oldest pending send action cookie 0x%llx",
6190 (long long unsigned int)
6191 drv->send_action_cookies[0]);
6192 os_memmove(&drv->send_action_cookies[0],
6193 &drv->send_action_cookies[1],
6194 (MAX_SEND_ACTION_COOKIES - 1) *
6195 sizeof(u64));
6196 drv->num_send_action_cookies--;
6197 }
6198 drv->send_action_cookies[drv->num_send_action_cookies] = cookie;
6199 drv->num_send_action_cookies++;
6200 }
6201
6202 fail:
6203 nlmsg_free(msg);
6204 return ret;
6205 }
6206
6207
6208 static int wpa_driver_nl80211_send_action(struct i802_bss *bss,
6209 unsigned int freq,
6210 unsigned int wait_time,
6211 const u8 *dst, const u8 *src,
6212 const u8 *bssid,
6213 const u8 *data, size_t data_len,
6214 int no_cck)
6215 {
6216 struct wpa_driver_nl80211_data *drv = bss->drv;
6217 int ret = -1;
6218 u8 *buf;
6219 struct ieee80211_hdr *hdr;
6220
6221 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, "
6222 "freq=%u MHz wait=%d ms no_cck=%d)",
6223 drv->ifindex, freq, wait_time, no_cck);
6224
6225 buf = os_zalloc(24 + data_len);
6226 if (buf == NULL)
6227 return ret;
6228 os_memcpy(buf + 24, data, data_len);
6229 hdr = (struct ieee80211_hdr *) buf;
6230 hdr->frame_control =
6231 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION);
6232 os_memcpy(hdr->addr1, dst, ETH_ALEN);
6233 os_memcpy(hdr->addr2, src, ETH_ALEN);
6234 os_memcpy(hdr->addr3, bssid, ETH_ALEN);
6235
6236 if (is_ap_interface(drv->nlmode) &&
6237 (!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) ||
6238 (int) freq == bss->freq || drv->device_ap_sme ||
6239 !drv->use_monitor))
6240 ret = wpa_driver_nl80211_send_mlme(bss, buf, 24 + data_len,
6241 0, freq, no_cck, 1,
6242 wait_time, NULL, 0);
6243 else
6244 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf,
6245 24 + data_len,
6246 &drv->send_action_cookie,
6247 no_cck, 0, 1, NULL, 0);
6248
6249 os_free(buf);
6250 return ret;
6251 }
6252
6253
6254 static void nl80211_frame_wait_cancel(struct i802_bss *bss, u64 cookie)
6255 {
6256 struct wpa_driver_nl80211_data *drv = bss->drv;
6257 struct nl_msg *msg;
6258 int ret;
6259
6260 wpa_printf(MSG_DEBUG, "nl80211: Cancel TX frame wait: cookie=0x%llx",
6261 (long long unsigned int) cookie);
6262 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_FRAME_WAIT_CANCEL)) ||
6263 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) {
6264 nlmsg_free(msg);
6265 return;
6266 }
6267
6268 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6269 if (ret)
6270 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d "
6271 "(%s)", ret, strerror(-ret));
6272 }
6273
6274
6275 static void wpa_driver_nl80211_send_action_cancel_wait(void *priv)
6276 {
6277 struct i802_bss *bss = priv;
6278 struct wpa_driver_nl80211_data *drv = bss->drv;
6279 unsigned int i;
6280 u64 cookie;
6281
6282 /* Cancel the last pending TX cookie */
6283 nl80211_frame_wait_cancel(bss, drv->send_action_cookie);
6284
6285 /*
6286 * Cancel the other pending TX cookies, if any. This is needed since
6287 * the driver may keep a list of all pending offchannel TX operations
6288 * and free up the radio only once they have expired or cancelled.
6289 */
6290 for (i = drv->num_send_action_cookies; i > 0; i--) {
6291 cookie = drv->send_action_cookies[i - 1];
6292 if (cookie != drv->send_action_cookie)
6293 nl80211_frame_wait_cancel(bss, cookie);
6294 }
6295 drv->num_send_action_cookies = 0;
6296 }
6297
6298
6299 static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq,
6300 unsigned int duration)
6301 {
6302 struct i802_bss *bss = priv;
6303 struct wpa_driver_nl80211_data *drv = bss->drv;
6304 struct nl_msg *msg;
6305 int ret;
6306 u64 cookie;
6307
6308 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_REMAIN_ON_CHANNEL)) ||
6309 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
6310 nla_put_u32(msg, NL80211_ATTR_DURATION, duration)) {
6311 nlmsg_free(msg);
6312 return -1;
6313 }
6314
6315 cookie = 0;
6316 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
6317 if (ret == 0) {
6318 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie "
6319 "0x%llx for freq=%u MHz duration=%u",
6320 (long long unsigned int) cookie, freq, duration);
6321 drv->remain_on_chan_cookie = cookie;
6322 drv->pending_remain_on_chan = 1;
6323 return 0;
6324 }
6325 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel "
6326 "(freq=%d duration=%u): %d (%s)",
6327 freq, duration, ret, strerror(-ret));
6328 return -1;
6329 }
6330
6331
6332 static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv)
6333 {
6334 struct i802_bss *bss = priv;
6335 struct wpa_driver_nl80211_data *drv = bss->drv;
6336 struct nl_msg *msg;
6337 int ret;
6338
6339 if (!drv->pending_remain_on_chan) {
6340 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel "
6341 "to cancel");
6342 return -1;
6343 }
6344
6345 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie "
6346 "0x%llx",
6347 (long long unsigned int) drv->remain_on_chan_cookie);
6348
6349 msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL);
6350 if (!msg ||
6351 nla_put_u64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie)) {
6352 nlmsg_free(msg);
6353 return -1;
6354 }
6355
6356 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6357 if (ret == 0)
6358 return 0;
6359 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: "
6360 "%d (%s)", ret, strerror(-ret));
6361 return -1;
6362 }
6363
6364
6365 static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, int report)
6366 {
6367 struct wpa_driver_nl80211_data *drv = bss->drv;
6368
6369 if (!report) {
6370 if (bss->nl_preq && drv->device_ap_sme &&
6371 is_ap_interface(drv->nlmode) && !bss->in_deinit &&
6372 !bss->static_ap) {
6373 /*
6374 * Do not disable Probe Request reporting that was
6375 * enabled in nl80211_setup_ap().
6376 */
6377 wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of "
6378 "Probe Request reporting nl_preq=%p while "
6379 "in AP mode", bss->nl_preq);
6380 } else if (bss->nl_preq) {
6381 wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request "
6382 "reporting nl_preq=%p", bss->nl_preq);
6383 nl80211_destroy_eloop_handle(&bss->nl_preq);
6384 }
6385 return 0;
6386 }
6387
6388 if (bss->nl_preq) {
6389 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting "
6390 "already on! nl_preq=%p", bss->nl_preq);
6391 return 0;
6392 }
6393
6394 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq");
6395 if (bss->nl_preq == NULL)
6396 return -1;
6397 wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request "
6398 "reporting nl_preq=%p", bss->nl_preq);
6399
6400 if (nl80211_register_frame(bss, bss->nl_preq,
6401 (WLAN_FC_TYPE_MGMT << 2) |
6402 (WLAN_FC_STYPE_PROBE_REQ << 4),
6403 NULL, 0) < 0)
6404 goto out_err;
6405
6406 nl80211_register_eloop_read(&bss->nl_preq,
6407 wpa_driver_nl80211_event_receive,
6408 bss->nl_cb);
6409
6410 return 0;
6411
6412 out_err:
6413 nl_destroy_handles(&bss->nl_preq);
6414 return -1;
6415 }
6416
6417
6418 static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
6419 int ifindex, int disabled)
6420 {
6421 struct nl_msg *msg;
6422 struct nlattr *bands, *band;
6423 int ret;
6424
6425 wpa_printf(MSG_DEBUG,
6426 "nl80211: NL80211_CMD_SET_TX_BITRATE_MASK (ifindex=%d %s)",
6427 ifindex, disabled ? "NL80211_TXRATE_LEGACY=OFDM-only" :
6428 "no NL80211_TXRATE_LEGACY constraint");
6429
6430 msg = nl80211_ifindex_msg(drv, ifindex, 0,
6431 NL80211_CMD_SET_TX_BITRATE_MASK);
6432 if (!msg)
6433 return -1;
6434
6435 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES);
6436 if (!bands)
6437 goto fail;
6438
6439 /*
6440 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything
6441 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS
6442 * rates. All 5 GHz rates are left enabled.
6443 */
6444 band = nla_nest_start(msg, NL80211_BAND_2GHZ);
6445 if (!band ||
6446 (disabled && nla_put(msg, NL80211_TXRATE_LEGACY, 8,
6447 "\x0c\x12\x18\x24\x30\x48\x60\x6c")))
6448 goto fail;
6449 nla_nest_end(msg, band);
6450
6451 nla_nest_end(msg, bands);
6452
6453 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6454 if (ret) {
6455 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d "
6456 "(%s)", ret, strerror(-ret));
6457 } else
6458 drv->disabled_11b_rates = disabled;
6459
6460 return ret;
6461
6462 fail:
6463 nlmsg_free(msg);
6464 return -1;
6465 }
6466
6467
6468 static int wpa_driver_nl80211_deinit_ap(void *priv)
6469 {
6470 struct i802_bss *bss = priv;
6471 struct wpa_driver_nl80211_data *drv = bss->drv;
6472 if (!is_ap_interface(drv->nlmode))
6473 return -1;
6474 wpa_driver_nl80211_del_beacon(drv);
6475 bss->beacon_set = 0;
6476
6477 /*
6478 * If the P2P GO interface was dynamically added, then it is
6479 * possible that the interface change to station is not possible.
6480 */
6481 if (drv->nlmode == NL80211_IFTYPE_P2P_GO && bss->if_dynamic)
6482 return 0;
6483
6484 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION);
6485 }
6486
6487
6488 static int wpa_driver_nl80211_stop_ap(void *priv)
6489 {
6490 struct i802_bss *bss = priv;
6491 struct wpa_driver_nl80211_data *drv = bss->drv;
6492 if (!is_ap_interface(drv->nlmode))
6493 return -1;
6494 wpa_driver_nl80211_del_beacon(drv);
6495 bss->beacon_set = 0;
6496 return 0;
6497 }
6498
6499
6500 static int wpa_driver_nl80211_deinit_p2p_cli(void *priv)
6501 {
6502 struct i802_bss *bss = priv;
6503 struct wpa_driver_nl80211_data *drv = bss->drv;
6504 if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT)
6505 return -1;
6506
6507 /*
6508 * If the P2P Client interface was dynamically added, then it is
6509 * possible that the interface change to station is not possible.
6510 */
6511 if (bss->if_dynamic)
6512 return 0;
6513
6514 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION);
6515 }
6516
6517
6518 static void wpa_driver_nl80211_resume(void *priv)
6519 {
6520 struct i802_bss *bss = priv;
6521 enum nl80211_iftype nlmode = nl80211_get_ifmode(bss);
6522
6523 if (i802_set_iface_flags(bss, 1))
6524 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on resume event");
6525
6526 if (is_p2p_net_interface(nlmode))
6527 nl80211_disable_11b_rates(bss->drv, bss->drv->ifindex, 1);
6528 }
6529
6530
6531 static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis)
6532 {
6533 struct i802_bss *bss = priv;
6534 struct wpa_driver_nl80211_data *drv = bss->drv;
6535 struct nl_msg *msg;
6536 struct nlattr *cqm;
6537
6538 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d "
6539 "hysteresis=%d", threshold, hysteresis);
6540
6541 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_CQM)) ||
6542 !(cqm = nla_nest_start(msg, NL80211_ATTR_CQM)) ||
6543 nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THOLD, threshold) ||
6544 nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_HYST, hysteresis)) {
6545 nlmsg_free(msg);
6546 return -1;
6547 }
6548 nla_nest_end(msg, cqm);
6549
6550 return send_and_recv_msgs(drv, msg, NULL, NULL);
6551 }
6552
6553
6554 static int get_channel_width(struct nl_msg *msg, void *arg)
6555 {
6556 struct nlattr *tb[NL80211_ATTR_MAX + 1];
6557 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
6558 struct wpa_signal_info *sig_change = arg;
6559
6560 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
6561 genlmsg_attrlen(gnlh, 0), NULL);
6562
6563 sig_change->center_frq1 = -1;
6564 sig_change->center_frq2 = -1;
6565 sig_change->chanwidth = CHAN_WIDTH_UNKNOWN;
6566
6567 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) {
6568 sig_change->chanwidth = convert2width(
6569 nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH]));
6570 if (tb[NL80211_ATTR_CENTER_FREQ1])
6571 sig_change->center_frq1 =
6572 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]);
6573 if (tb[NL80211_ATTR_CENTER_FREQ2])
6574 sig_change->center_frq2 =
6575 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]);
6576 }
6577
6578 return NL_SKIP;
6579 }
6580
6581
6582 static int nl80211_get_channel_width(struct wpa_driver_nl80211_data *drv,
6583 struct wpa_signal_info *sig)
6584 {
6585 struct nl_msg *msg;
6586
6587 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_GET_INTERFACE);
6588 return send_and_recv_msgs(drv, msg, get_channel_width, sig);
6589 }
6590
6591
6592 static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si)
6593 {
6594 struct i802_bss *bss = priv;
6595 struct wpa_driver_nl80211_data *drv = bss->drv;
6596 int res;
6597
6598 os_memset(si, 0, sizeof(*si));
6599 res = nl80211_get_link_signal(drv, si);
6600 if (res) {
6601 if (drv->nlmode != NL80211_IFTYPE_ADHOC &&
6602 drv->nlmode != NL80211_IFTYPE_MESH_POINT)
6603 return res;
6604 si->current_signal = 0;
6605 }
6606
6607 res = nl80211_get_channel_width(drv, si);
6608 if (res != 0)
6609 return res;
6610
6611 return nl80211_get_link_noise(drv, si);
6612 }
6613
6614
6615 static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len,
6616 int encrypt)
6617 {
6618 struct i802_bss *bss = priv;
6619 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0,
6620 0, 0, 0, 0, NULL, 0);
6621 }
6622
6623
6624 static int nl80211_set_param(void *priv, const char *param)
6625 {
6626 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param);
6627 if (param == NULL)
6628 return 0;
6629
6630 #ifdef CONFIG_P2P
6631 if (os_strstr(param, "use_p2p_group_interface=1")) {
6632 struct i802_bss *bss = priv;
6633 struct wpa_driver_nl80211_data *drv = bss->drv;
6634
6635 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
6636 "interface");
6637 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
6638 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
6639 }
6640 #endif /* CONFIG_P2P */
6641
6642 if (os_strstr(param, "use_monitor=1")) {
6643 struct i802_bss *bss = priv;
6644 struct wpa_driver_nl80211_data *drv = bss->drv;
6645 drv->use_monitor = 1;
6646 }
6647
6648 if (os_strstr(param, "force_connect_cmd=1")) {
6649 struct i802_bss *bss = priv;
6650 struct wpa_driver_nl80211_data *drv = bss->drv;
6651 drv->capa.flags &= ~WPA_DRIVER_FLAGS_SME;
6652 drv->force_connect_cmd = 1;
6653 }
6654
6655 if (os_strstr(param, "no_offchannel_tx=1")) {
6656 struct i802_bss *bss = priv;
6657 struct wpa_driver_nl80211_data *drv = bss->drv;
6658 drv->capa.flags &= ~WPA_DRIVER_FLAGS_OFFCHANNEL_TX;
6659 drv->test_use_roc_tx = 1;
6660 }
6661
6662 return 0;
6663 }
6664
6665
6666 static void * nl80211_global_init(void)
6667 {
6668 struct nl80211_global *global;
6669 struct netlink_config *cfg;
6670
6671 global = os_zalloc(sizeof(*global));
6672 if (global == NULL)
6673 return NULL;
6674 global->ioctl_sock = -1;
6675 dl_list_init(&global->interfaces);
6676 global->if_add_ifindex = -1;
6677
6678 cfg = os_zalloc(sizeof(*cfg));
6679 if (cfg == NULL)
6680 goto err;
6681
6682 cfg->ctx = global;
6683 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink;
6684 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink;
6685 global->netlink = netlink_init(cfg);
6686 if (global->netlink == NULL) {
6687 os_free(cfg);
6688 goto err;
6689 }
6690
6691 if (wpa_driver_nl80211_init_nl_global(global) < 0)
6692 goto err;
6693
6694 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
6695 if (global->ioctl_sock < 0) {
6696 wpa_printf(MSG_ERROR, "nl80211: socket(PF_INET,SOCK_DGRAM) failed: %s",
6697 strerror(errno));
6698 goto err;
6699 }
6700
6701 return global;
6702
6703 err:
6704 nl80211_global_deinit(global);
6705 return NULL;
6706 }
6707
6708
6709 static void nl80211_global_deinit(void *priv)
6710 {
6711 struct nl80211_global *global = priv;
6712 if (global == NULL)
6713 return;
6714 if (!dl_list_empty(&global->interfaces)) {
6715 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at "
6716 "nl80211_global_deinit",
6717 dl_list_len(&global->interfaces));
6718 }
6719
6720 if (global->netlink)
6721 netlink_deinit(global->netlink);
6722
6723 nl_destroy_handles(&global->nl);
6724
6725 if (global->nl_event)
6726 nl80211_destroy_eloop_handle(&global->nl_event);
6727
6728 nl_cb_put(global->nl_cb);
6729
6730 if (global->ioctl_sock >= 0)
6731 close(global->ioctl_sock);
6732
6733 os_free(global);
6734 }
6735
6736
6737 static const char * nl80211_get_radio_name(void *priv)
6738 {
6739 struct i802_bss *bss = priv;
6740 struct wpa_driver_nl80211_data *drv = bss->drv;
6741 return drv->phyname;
6742 }
6743
6744
6745 static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid,
6746 const u8 *pmkid)
6747 {
6748 struct nl_msg *msg;
6749
6750 if (!(msg = nl80211_bss_msg(bss, 0, cmd)) ||
6751 (pmkid && nla_put(msg, NL80211_ATTR_PMKID, 16, pmkid)) ||
6752 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))) {
6753 nlmsg_free(msg);
6754 return -ENOBUFS;
6755 }
6756
6757 return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
6758 }
6759
6760
6761 static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid)
6762 {
6763 struct i802_bss *bss = priv;
6764 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid));
6765 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid);
6766 }
6767
6768
6769 static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid)
6770 {
6771 struct i802_bss *bss = priv;
6772 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR,
6773 MAC2STR(bssid));
6774 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid);
6775 }
6776
6777
6778 static int nl80211_flush_pmkid(void *priv)
6779 {
6780 struct i802_bss *bss = priv;
6781 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs");
6782 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL);
6783 }
6784
6785
6786 static void clean_survey_results(struct survey_results *survey_results)
6787 {
6788 struct freq_survey *survey, *tmp;
6789
6790 if (dl_list_empty(&survey_results->survey_list))
6791 return;
6792
6793 dl_list_for_each_safe(survey, tmp, &survey_results->survey_list,
6794 struct freq_survey, list) {
6795 dl_list_del(&survey->list);
6796 os_free(survey);
6797 }
6798 }
6799
6800
6801 static void add_survey(struct nlattr **sinfo, u32 ifidx,
6802 struct dl_list *survey_list)
6803 {
6804 struct freq_survey *survey;
6805
6806 survey = os_zalloc(sizeof(struct freq_survey));
6807 if (!survey)
6808 return;
6809
6810 survey->ifidx = ifidx;
6811 survey->freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]);
6812 survey->filled = 0;
6813
6814 if (sinfo[NL80211_SURVEY_INFO_NOISE]) {
6815 survey->nf = (int8_t)
6816 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
6817 survey->filled |= SURVEY_HAS_NF;
6818 }
6819
6820 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]) {
6821 survey->channel_time =
6822 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]);
6823 survey->filled |= SURVEY_HAS_CHAN_TIME;
6824 }
6825
6826 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]) {
6827 survey->channel_time_busy =
6828 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]);
6829 survey->filled |= SURVEY_HAS_CHAN_TIME_BUSY;
6830 }
6831
6832 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]) {
6833 survey->channel_time_rx =
6834 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]);
6835 survey->filled |= SURVEY_HAS_CHAN_TIME_RX;
6836 }
6837
6838 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]) {
6839 survey->channel_time_tx =
6840 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]);
6841 survey->filled |= SURVEY_HAS_CHAN_TIME_TX;
6842 }
6843
6844 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)",
6845 survey->freq,
6846 survey->nf,
6847 (unsigned long int) survey->channel_time,
6848 (unsigned long int) survey->channel_time_busy,
6849 (unsigned long int) survey->channel_time_tx,
6850 (unsigned long int) survey->channel_time_rx,
6851 survey->filled);
6852
6853 dl_list_add_tail(survey_list, &survey->list);
6854 }
6855
6856
6857 static int check_survey_ok(struct nlattr **sinfo, u32 surveyed_freq,
6858 unsigned int freq_filter)
6859 {
6860 if (!freq_filter)
6861 return 1;
6862
6863 return freq_filter == surveyed_freq;
6864 }
6865
6866
6867 static int survey_handler(struct nl_msg *msg, void *arg)
6868 {
6869 struct nlattr *tb[NL80211_ATTR_MAX + 1];
6870 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
6871 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
6872 struct survey_results *survey_results;
6873 u32 surveyed_freq = 0;
6874 u32 ifidx;
6875
6876 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
6877 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
6878 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
6879 };
6880
6881 survey_results = (struct survey_results *) arg;
6882
6883 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
6884 genlmsg_attrlen(gnlh, 0), NULL);
6885
6886 if (!tb[NL80211_ATTR_IFINDEX])
6887 return NL_SKIP;
6888
6889 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
6890
6891 if (!tb[NL80211_ATTR_SURVEY_INFO])
6892 return NL_SKIP;
6893
6894 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
6895 tb[NL80211_ATTR_SURVEY_INFO],
6896 survey_policy))
6897 return NL_SKIP;
6898
6899 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) {
6900 wpa_printf(MSG_ERROR, "nl80211: Invalid survey data");
6901 return NL_SKIP;
6902 }
6903
6904 surveyed_freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]);
6905
6906 if (!check_survey_ok(sinfo, surveyed_freq,
6907 survey_results->freq_filter))
6908 return NL_SKIP;
6909
6910 if (survey_results->freq_filter &&
6911 survey_results->freq_filter != surveyed_freq) {
6912 wpa_printf(MSG_EXCESSIVE, "nl80211: Ignoring survey data for freq %d MHz",
6913 surveyed_freq);
6914 return NL_SKIP;
6915 }
6916
6917 add_survey(sinfo, ifidx, &survey_results->survey_list);
6918
6919 return NL_SKIP;
6920 }
6921
6922
6923 static int wpa_driver_nl80211_get_survey(void *priv, unsigned int freq)
6924 {
6925 struct i802_bss *bss = priv;
6926 struct wpa_driver_nl80211_data *drv = bss->drv;
6927 struct nl_msg *msg;
6928 int err;
6929 union wpa_event_data data;
6930 struct survey_results *survey_results;
6931
6932 os_memset(&data, 0, sizeof(data));
6933 survey_results = &data.survey_results;
6934
6935 dl_list_init(&survey_results->survey_list);
6936
6937 msg = nl80211_drv_msg(drv, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
6938 if (!msg)
6939 return -ENOBUFS;
6940
6941 if (freq)
6942 data.survey_results.freq_filter = freq;
6943
6944 do {
6945 wpa_printf(MSG_DEBUG, "nl80211: Fetch survey data");
6946 err = send_and_recv_msgs(drv, msg, survey_handler,
6947 survey_results);
6948 } while (err > 0);
6949
6950 if (err)
6951 wpa_printf(MSG_ERROR, "nl80211: Failed to process survey data");
6952 else
6953 wpa_supplicant_event(drv->ctx, EVENT_SURVEY, &data);
6954
6955 clean_survey_results(survey_results);
6956 return err;
6957 }
6958
6959
6960 static void nl80211_set_rekey_info(void *priv, const u8 *kek, size_t kek_len,
6961 const u8 *kck, size_t kck_len,
6962 const u8 *replay_ctr)
6963 {
6964 struct i802_bss *bss = priv;
6965 struct wpa_driver_nl80211_data *drv = bss->drv;
6966 struct nlattr *replay_nested;
6967 struct nl_msg *msg;
6968 int ret;
6969
6970 if (!drv->set_rekey_offload)
6971 return;
6972
6973 wpa_printf(MSG_DEBUG, "nl80211: Set rekey offload");
6974 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_REKEY_OFFLOAD)) ||
6975 !(replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA)) ||
6976 nla_put(msg, NL80211_REKEY_DATA_KEK, kek_len, kek) ||
6977 nla_put(msg, NL80211_REKEY_DATA_KCK, kck_len, kck) ||
6978 nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN,
6979 replay_ctr)) {
6980 nl80211_nlmsg_clear(msg);
6981 nlmsg_free(msg);
6982 return;
6983 }
6984
6985 nla_nest_end(msg, replay_nested);
6986
6987 ret = send_and_recv_msgs(drv, msg, NULL, (void *) -1);
6988 if (ret == -EOPNOTSUPP) {
6989 wpa_printf(MSG_DEBUG,
6990 "nl80211: Driver does not support rekey offload");
6991 drv->set_rekey_offload = 0;
6992 }
6993 }
6994
6995
6996 static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr,
6997 const u8 *addr, int qos)
6998 {
6999 /* send data frame to poll STA and check whether
7000 * this frame is ACKed */
7001 struct {
7002 struct ieee80211_hdr hdr;
7003 u16 qos_ctl;
7004 } STRUCT_PACKED nulldata;
7005 size_t size;
7006
7007 /* Send data frame to poll STA and check whether this frame is ACKed */
7008
7009 os_memset(&nulldata, 0, sizeof(nulldata));
7010
7011 if (qos) {
7012 nulldata.hdr.frame_control =
7013 IEEE80211_FC(WLAN_FC_TYPE_DATA,
7014 WLAN_FC_STYPE_QOS_NULL);
7015 size = sizeof(nulldata);
7016 } else {
7017 nulldata.hdr.frame_control =
7018 IEEE80211_FC(WLAN_FC_TYPE_DATA,
7019 WLAN_FC_STYPE_NULLFUNC);
7020 size = sizeof(struct ieee80211_hdr);
7021 }
7022
7023 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS);
7024 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN);
7025 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
7026 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
7027
7028 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0, 0, 0,
7029 0, 0, NULL, 0) < 0)
7030 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to "
7031 "send poll frame");
7032 }
7033
7034 static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr,
7035 int qos)
7036 {
7037 struct i802_bss *bss = priv;
7038 struct wpa_driver_nl80211_data *drv = bss->drv;
7039 struct nl_msg *msg;
7040 int ret;
7041
7042 if (!drv->poll_command_supported) {
7043 nl80211_send_null_frame(bss, own_addr, addr, qos);
7044 return;
7045 }
7046
7047 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_PROBE_CLIENT)) ||
7048 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) {
7049 nlmsg_free(msg);
7050 return;
7051 }
7052
7053 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7054 if (ret < 0) {
7055 wpa_printf(MSG_DEBUG, "nl80211: Client probe request for "
7056 MACSTR " failed: ret=%d (%s)",
7057 MAC2STR(addr), ret, strerror(-ret));
7058 }
7059 }
7060
7061
7062 static int nl80211_set_power_save(struct i802_bss *bss, int enabled)
7063 {
7064 struct nl_msg *msg;
7065
7066 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_POWER_SAVE)) ||
7067 nla_put_u32(msg, NL80211_ATTR_PS_STATE,
7068 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED)) {
7069 nlmsg_free(msg);
7070 return -ENOBUFS;
7071 }
7072 return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
7073 }
7074
7075
7076 static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps,
7077 int ctwindow)
7078 {
7079 struct i802_bss *bss = priv;
7080
7081 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d "
7082 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow);
7083
7084 if (opp_ps != -1 || ctwindow != -1) {
7085 #ifdef ANDROID_P2P
7086 wpa_driver_set_p2p_ps(priv, legacy_ps, opp_ps, ctwindow);
7087 #else /* ANDROID_P2P */
7088 return -1; /* Not yet supported */
7089 #endif /* ANDROID_P2P */
7090 }
7091
7092 if (legacy_ps == -1)
7093 return 0;
7094 if (legacy_ps != 0 && legacy_ps != 1)
7095 return -1; /* Not yet supported */
7096
7097 return nl80211_set_power_save(bss, legacy_ps);
7098 }
7099
7100
7101 static int nl80211_start_radar_detection(void *priv,
7102 struct hostapd_freq_params *freq)
7103 {
7104 struct i802_bss *bss = priv;
7105 struct wpa_driver_nl80211_data *drv = bss->drv;
7106 struct nl_msg *msg;
7107 int ret;
7108
7109 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)",
7110 freq->freq, freq->ht_enabled, freq->vht_enabled,
7111 freq->bandwidth, freq->center_freq1, freq->center_freq2);
7112
7113 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_RADAR)) {
7114 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support radar "
7115 "detection");
7116 return -1;
7117 }
7118
7119 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_RADAR_DETECT)) ||
7120 nl80211_put_freq_params(msg, freq) < 0) {
7121 nlmsg_free(msg);
7122 return -1;
7123 }
7124
7125 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7126 if (ret == 0)
7127 return 0;
7128 wpa_printf(MSG_DEBUG, "nl80211: Failed to start radar detection: "
7129 "%d (%s)", ret, strerror(-ret));
7130 return -1;
7131 }
7132
7133 #ifdef CONFIG_TDLS
7134
7135 static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code,
7136 u8 dialog_token, u16 status_code,
7137 u32 peer_capab, int initiator, const u8 *buf,
7138 size_t len)
7139 {
7140 struct i802_bss *bss = priv;
7141 struct wpa_driver_nl80211_data *drv = bss->drv;
7142 struct nl_msg *msg;
7143
7144 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
7145 return -EOPNOTSUPP;
7146
7147 if (!dst)
7148 return -EINVAL;
7149
7150 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_TDLS_MGMT)) ||
7151 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
7152 nla_put_u8(msg, NL80211_ATTR_TDLS_ACTION, action_code) ||
7153 nla_put_u8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token) ||
7154 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status_code))
7155 goto fail;
7156 if (peer_capab) {
7157 /*
7158 * The internal enum tdls_peer_capability definition is
7159 * currently identical with the nl80211 enum
7160 * nl80211_tdls_peer_capability, so no conversion is needed
7161 * here.
7162 */
7163 if (nla_put_u32(msg, NL80211_ATTR_TDLS_PEER_CAPABILITY,
7164 peer_capab))
7165 goto fail;
7166 }
7167 if ((initiator &&
7168 nla_put_flag(msg, NL80211_ATTR_TDLS_INITIATOR)) ||
7169 nla_put(msg, NL80211_ATTR_IE, len, buf))
7170 goto fail;
7171
7172 return send_and_recv_msgs(drv, msg, NULL, NULL);
7173
7174 fail:
7175 nlmsg_free(msg);
7176 return -ENOBUFS;
7177 }
7178
7179
7180 static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer)
7181 {
7182 struct i802_bss *bss = priv;
7183 struct wpa_driver_nl80211_data *drv = bss->drv;
7184 struct nl_msg *msg;
7185 enum nl80211_tdls_operation nl80211_oper;
7186
7187 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
7188 return -EOPNOTSUPP;
7189
7190 switch (oper) {
7191 case TDLS_DISCOVERY_REQ:
7192 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ;
7193 break;
7194 case TDLS_SETUP:
7195 nl80211_oper = NL80211_TDLS_SETUP;
7196 break;
7197 case TDLS_TEARDOWN:
7198 nl80211_oper = NL80211_TDLS_TEARDOWN;
7199 break;
7200 case TDLS_ENABLE_LINK:
7201 nl80211_oper = NL80211_TDLS_ENABLE_LINK;
7202 break;
7203 case TDLS_DISABLE_LINK:
7204 nl80211_oper = NL80211_TDLS_DISABLE_LINK;
7205 break;
7206 case TDLS_ENABLE:
7207 return 0;
7208 case TDLS_DISABLE:
7209 return 0;
7210 default:
7211 return -EINVAL;
7212 }
7213
7214 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_TDLS_OPER)) ||
7215 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper) ||
7216 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer)) {
7217 nlmsg_free(msg);
7218 return -ENOBUFS;
7219 }
7220
7221 return send_and_recv_msgs(drv, msg, NULL, NULL);
7222 }
7223
7224
7225 static int
7226 nl80211_tdls_enable_channel_switch(void *priv, const u8 *addr, u8 oper_class,
7227 const struct hostapd_freq_params *params)
7228 {
7229 struct i802_bss *bss = priv;
7230 struct wpa_driver_nl80211_data *drv = bss->drv;
7231 struct nl_msg *msg;
7232 int ret = -ENOBUFS;
7233
7234 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT) ||
7235 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_CHANNEL_SWITCH))
7236 return -EOPNOTSUPP;
7237
7238 wpa_printf(MSG_DEBUG, "nl80211: Enable TDLS channel switch " MACSTR
7239 " oper_class=%u freq=%u",
7240 MAC2STR(addr), oper_class, params->freq);
7241 msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_TDLS_CHANNEL_SWITCH);
7242 if (!msg ||
7243 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
7244 nla_put_u8(msg, NL80211_ATTR_OPER_CLASS, oper_class) ||
7245 (ret = nl80211_put_freq_params(msg, params))) {
7246 nlmsg_free(msg);
7247 wpa_printf(MSG_DEBUG, "nl80211: Could not build TDLS chan switch");
7248 return ret;
7249 }
7250
7251 return send_and_recv_msgs(drv, msg, NULL, NULL);
7252 }
7253
7254
7255 static int
7256 nl80211_tdls_disable_channel_switch(void *priv, const u8 *addr)
7257 {
7258 struct i802_bss *bss = priv;
7259 struct wpa_driver_nl80211_data *drv = bss->drv;
7260 struct nl_msg *msg;
7261
7262 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT) ||
7263 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_CHANNEL_SWITCH))
7264 return -EOPNOTSUPP;
7265
7266 wpa_printf(MSG_DEBUG, "nl80211: Disable TDLS channel switch " MACSTR,
7267 MAC2STR(addr));
7268 msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH);
7269 if (!msg ||
7270 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) {
7271 nlmsg_free(msg);
7272 wpa_printf(MSG_DEBUG,
7273 "nl80211: Could not build TDLS cancel chan switch");
7274 return -ENOBUFS;
7275 }
7276
7277 return send_and_recv_msgs(drv, msg, NULL, NULL);
7278 }
7279
7280 #endif /* CONFIG TDLS */
7281
7282
7283 static int driver_nl80211_set_key(const char *ifname, void *priv,
7284 enum wpa_alg alg, const u8 *addr,
7285 int key_idx, int set_tx,
7286 const u8 *seq, size_t seq_len,
7287 const u8 *key, size_t key_len)
7288 {
7289 struct i802_bss *bss = priv;
7290 return wpa_driver_nl80211_set_key(ifname, bss, alg, addr, key_idx,
7291 set_tx, seq, seq_len, key, key_len);
7292 }
7293
7294
7295 static int driver_nl80211_scan2(void *priv,
7296 struct wpa_driver_scan_params *params)
7297 {
7298 struct i802_bss *bss = priv;
7299 #ifdef CONFIG_DRIVER_NL80211_QCA
7300 struct wpa_driver_nl80211_data *drv = bss->drv;
7301
7302 /*
7303 * Do a vendor specific scan if possible. If only_new_results is
7304 * set, do a normal scan since a kernel (cfg80211) BSS cache flush
7305 * cannot be achieved through a vendor scan. The below condition may
7306 * need to be modified if new scan flags are added in the future whose
7307 * functionality can only be achieved through a normal scan.
7308 */
7309 if (drv->scan_vendor_cmd_avail && !params->only_new_results)
7310 return wpa_driver_nl80211_vendor_scan(bss, params);
7311 #endif /* CONFIG_DRIVER_NL80211_QCA */
7312 return wpa_driver_nl80211_scan(bss, params);
7313 }
7314
7315
7316 static int driver_nl80211_deauthenticate(void *priv, const u8 *addr,
7317 int reason_code)
7318 {
7319 struct i802_bss *bss = priv;
7320 return wpa_driver_nl80211_deauthenticate(bss, addr, reason_code);
7321 }
7322
7323
7324 static int driver_nl80211_authenticate(void *priv,
7325 struct wpa_driver_auth_params *params)
7326 {
7327 struct i802_bss *bss = priv;
7328 return wpa_driver_nl80211_authenticate(bss, params);
7329 }
7330
7331
7332 static void driver_nl80211_deinit(void *priv)
7333 {
7334 struct i802_bss *bss = priv;
7335 wpa_driver_nl80211_deinit(bss);
7336 }
7337
7338
7339 static int driver_nl80211_if_remove(void *priv, enum wpa_driver_if_type type,
7340 const char *ifname)
7341 {
7342 struct i802_bss *bss = priv;
7343 return wpa_driver_nl80211_if_remove(bss, type, ifname);
7344 }
7345
7346
7347 static int driver_nl80211_send_mlme(void *priv, const u8 *data,
7348 size_t data_len, int noack,
7349 unsigned int freq,
7350 const u16 *csa_offs, size_t csa_offs_len)
7351 {
7352 struct i802_bss *bss = priv;
7353 return wpa_driver_nl80211_send_mlme(bss, data, data_len, noack,
7354 freq, 0, 0, 0, csa_offs,
7355 csa_offs_len);
7356 }
7357
7358
7359 static int driver_nl80211_sta_remove(void *priv, const u8 *addr)
7360 {
7361 struct i802_bss *bss = priv;
7362 return wpa_driver_nl80211_sta_remove(bss, addr, -1, 0);
7363 }
7364
7365
7366 static int driver_nl80211_set_sta_vlan(void *priv, const u8 *addr,
7367 const char *ifname, int vlan_id)
7368 {
7369 struct i802_bss *bss = priv;
7370 return i802_set_sta_vlan(bss, addr, ifname, vlan_id);
7371 }
7372
7373
7374 static int driver_nl80211_read_sta_data(void *priv,
7375 struct hostap_sta_driver_data *data,
7376 const u8 *addr)
7377 {
7378 struct i802_bss *bss = priv;
7379 return i802_read_sta_data(bss, data, addr);
7380 }
7381
7382
7383 static int driver_nl80211_send_action(void *priv, unsigned int freq,
7384 unsigned int wait_time,
7385 const u8 *dst, const u8 *src,
7386 const u8 *bssid,
7387 const u8 *data, size_t data_len,
7388 int no_cck)
7389 {
7390 struct i802_bss *bss = priv;
7391 return wpa_driver_nl80211_send_action(bss, freq, wait_time, dst, src,
7392 bssid, data, data_len, no_cck);
7393 }
7394
7395
7396 static int driver_nl80211_probe_req_report(void *priv, int report)
7397 {
7398 struct i802_bss *bss = priv;
7399 return wpa_driver_nl80211_probe_req_report(bss, report);
7400 }
7401
7402
7403 static int wpa_driver_nl80211_update_ft_ies(void *priv, const u8 *md,
7404 const u8 *ies, size_t ies_len)
7405 {
7406 int ret;
7407 struct nl_msg *msg;
7408 struct i802_bss *bss = priv;
7409 struct wpa_driver_nl80211_data *drv = bss->drv;
7410 u16 mdid = WPA_GET_LE16(md);
7411
7412 wpa_printf(MSG_DEBUG, "nl80211: Updating FT IEs");
7413 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_UPDATE_FT_IES)) ||
7414 nla_put(msg, NL80211_ATTR_IE, ies_len, ies) ||
7415 nla_put_u16(msg, NL80211_ATTR_MDID, mdid)) {
7416 nlmsg_free(msg);
7417 return -ENOBUFS;
7418 }
7419
7420 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7421 if (ret) {
7422 wpa_printf(MSG_DEBUG, "nl80211: update_ft_ies failed "
7423 "err=%d (%s)", ret, strerror(-ret));
7424 }
7425
7426 return ret;
7427 }
7428
7429
7430 const u8 * wpa_driver_nl80211_get_macaddr(void *priv)
7431 {
7432 struct i802_bss *bss = priv;
7433 struct wpa_driver_nl80211_data *drv = bss->drv;
7434
7435 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE)
7436 return NULL;
7437
7438 return bss->addr;
7439 }
7440
7441
7442 static const char * scan_state_str(enum scan_states scan_state)
7443 {
7444 switch (scan_state) {
7445 case NO_SCAN:
7446 return "NO_SCAN";
7447 case SCAN_REQUESTED:
7448 return "SCAN_REQUESTED";
7449 case SCAN_STARTED:
7450 return "SCAN_STARTED";
7451 case SCAN_COMPLETED:
7452 return "SCAN_COMPLETED";
7453 case SCAN_ABORTED:
7454 return "SCAN_ABORTED";
7455 case SCHED_SCAN_STARTED:
7456 return "SCHED_SCAN_STARTED";
7457 case SCHED_SCAN_STOPPED:
7458 return "SCHED_SCAN_STOPPED";
7459 case SCHED_SCAN_RESULTS:
7460 return "SCHED_SCAN_RESULTS";
7461 }
7462
7463 return "??";
7464 }
7465
7466
7467 static int wpa_driver_nl80211_status(void *priv, char *buf, size_t buflen)
7468 {
7469 struct i802_bss *bss = priv;
7470 struct wpa_driver_nl80211_data *drv = bss->drv;
7471 int res;
7472 char *pos, *end;
7473
7474 pos = buf;
7475 end = buf + buflen;
7476
7477 res = os_snprintf(pos, end - pos,
7478 "ifindex=%d\n"
7479 "ifname=%s\n"
7480 "brname=%s\n"
7481 "addr=" MACSTR "\n"
7482 "freq=%d\n"
7483 "%s%s%s%s%s",
7484 bss->ifindex,
7485 bss->ifname,
7486 bss->brname,
7487 MAC2STR(bss->addr),
7488 bss->freq,
7489 bss->beacon_set ? "beacon_set=1\n" : "",
7490 bss->added_if_into_bridge ?
7491 "added_if_into_bridge=1\n" : "",
7492 bss->added_bridge ? "added_bridge=1\n" : "",
7493 bss->in_deinit ? "in_deinit=1\n" : "",
7494 bss->if_dynamic ? "if_dynamic=1\n" : "");
7495 if (os_snprintf_error(end - pos, res))
7496 return pos - buf;
7497 pos += res;
7498
7499 if (bss->wdev_id_set) {
7500 res = os_snprintf(pos, end - pos, "wdev_id=%llu\n",
7501 (unsigned long long) bss->wdev_id);
7502 if (os_snprintf_error(end - pos, res))
7503 return pos - buf;
7504 pos += res;
7505 }
7506
7507 res = os_snprintf(pos, end - pos,
7508 "phyname=%s\n"
7509 "perm_addr=" MACSTR "\n"
7510 "drv_ifindex=%d\n"
7511 "operstate=%d\n"
7512 "scan_state=%s\n"
7513 "auth_bssid=" MACSTR "\n"
7514 "auth_attempt_bssid=" MACSTR "\n"
7515 "bssid=" MACSTR "\n"
7516 "prev_bssid=" MACSTR "\n"
7517 "associated=%d\n"
7518 "assoc_freq=%u\n"
7519 "monitor_sock=%d\n"
7520 "monitor_ifidx=%d\n"
7521 "monitor_refcount=%d\n"
7522 "last_mgmt_freq=%u\n"
7523 "eapol_tx_sock=%d\n"
7524 "%s%s%s%s%s%s%s%s%s%s%s%s%s",
7525 drv->phyname,
7526 MAC2STR(drv->perm_addr),
7527 drv->ifindex,
7528 drv->operstate,
7529 scan_state_str(drv->scan_state),
7530 MAC2STR(drv->auth_bssid),
7531 MAC2STR(drv->auth_attempt_bssid),
7532 MAC2STR(drv->bssid),
7533 MAC2STR(drv->prev_bssid),
7534 drv->associated,
7535 drv->assoc_freq,
7536 drv->monitor_sock,
7537 drv->monitor_ifidx,
7538 drv->monitor_refcount,
7539 drv->last_mgmt_freq,
7540 drv->eapol_tx_sock,
7541 drv->ignore_if_down_event ?
7542 "ignore_if_down_event=1\n" : "",
7543 drv->scan_complete_events ?
7544 "scan_complete_events=1\n" : "",
7545 drv->disabled_11b_rates ?
7546 "disabled_11b_rates=1\n" : "",
7547 drv->pending_remain_on_chan ?
7548 "pending_remain_on_chan=1\n" : "",
7549 drv->in_interface_list ? "in_interface_list=1\n" : "",
7550 drv->device_ap_sme ? "device_ap_sme=1\n" : "",
7551 drv->poll_command_supported ?
7552 "poll_command_supported=1\n" : "",
7553 drv->data_tx_status ? "data_tx_status=1\n" : "",
7554 drv->scan_for_auth ? "scan_for_auth=1\n" : "",
7555 drv->retry_auth ? "retry_auth=1\n" : "",
7556 drv->use_monitor ? "use_monitor=1\n" : "",
7557 drv->ignore_next_local_disconnect ?
7558 "ignore_next_local_disconnect=1\n" : "",
7559 drv->ignore_next_local_deauth ?
7560 "ignore_next_local_deauth=1\n" : "");
7561 if (os_snprintf_error(end - pos, res))
7562 return pos - buf;
7563 pos += res;
7564
7565 if (drv->has_capability) {
7566 res = os_snprintf(pos, end - pos,
7567 "capa.key_mgmt=0x%x\n"
7568 "capa.enc=0x%x\n"
7569 "capa.auth=0x%x\n"
7570 "capa.flags=0x%llx\n"
7571 "capa.rrm_flags=0x%x\n"
7572 "capa.max_scan_ssids=%d\n"
7573 "capa.max_sched_scan_ssids=%d\n"
7574 "capa.sched_scan_supported=%d\n"
7575 "capa.max_match_sets=%d\n"
7576 "capa.max_remain_on_chan=%u\n"
7577 "capa.max_stations=%u\n"
7578 "capa.probe_resp_offloads=0x%x\n"
7579 "capa.max_acl_mac_addrs=%u\n"
7580 "capa.num_multichan_concurrent=%u\n"
7581 "capa.mac_addr_rand_sched_scan_supported=%d\n"
7582 "capa.mac_addr_rand_scan_supported=%d\n"
7583 "capa.conc_capab=%u\n"
7584 "capa.max_conc_chan_2_4=%u\n"
7585 "capa.max_conc_chan_5_0=%u\n"
7586 "capa.max_sched_scan_plans=%u\n"
7587 "capa.max_sched_scan_plan_interval=%u\n"
7588 "capa.max_sched_scan_plan_iterations=%u\n",
7589 drv->capa.key_mgmt,
7590 drv->capa.enc,
7591 drv->capa.auth,
7592 (unsigned long long) drv->capa.flags,
7593 drv->capa.rrm_flags,
7594 drv->capa.max_scan_ssids,
7595 drv->capa.max_sched_scan_ssids,
7596 drv->capa.sched_scan_supported,
7597 drv->capa.max_match_sets,
7598 drv->capa.max_remain_on_chan,
7599 drv->capa.max_stations,
7600 drv->capa.probe_resp_offloads,
7601 drv->capa.max_acl_mac_addrs,
7602 drv->capa.num_multichan_concurrent,
7603 drv->capa.mac_addr_rand_sched_scan_supported,
7604 drv->capa.mac_addr_rand_scan_supported,
7605 drv->capa.conc_capab,
7606 drv->capa.max_conc_chan_2_4,
7607 drv->capa.max_conc_chan_5_0,
7608 drv->capa.max_sched_scan_plans,
7609 drv->capa.max_sched_scan_plan_interval,
7610 drv->capa.max_sched_scan_plan_iterations);
7611 if (os_snprintf_error(end - pos, res))
7612 return pos - buf;
7613 pos += res;
7614 }
7615
7616 return pos - buf;
7617 }
7618
7619
7620 static int set_beacon_data(struct nl_msg *msg, struct beacon_data *settings)
7621 {
7622 if ((settings->head &&
7623 nla_put(msg, NL80211_ATTR_BEACON_HEAD,
7624 settings->head_len, settings->head)) ||
7625 (settings->tail &&
7626 nla_put(msg, NL80211_ATTR_BEACON_TAIL,
7627 settings->tail_len, settings->tail)) ||
7628 (settings->beacon_ies &&
7629 nla_put(msg, NL80211_ATTR_IE,
7630 settings->beacon_ies_len, settings->beacon_ies)) ||
7631 (settings->proberesp_ies &&
7632 nla_put(msg, NL80211_ATTR_IE_PROBE_RESP,
7633 settings->proberesp_ies_len, settings->proberesp_ies)) ||
7634 (settings->assocresp_ies &&
7635 nla_put(msg, NL80211_ATTR_IE_ASSOC_RESP,
7636 settings->assocresp_ies_len, settings->assocresp_ies)) ||
7637 (settings->probe_resp &&
7638 nla_put(msg, NL80211_ATTR_PROBE_RESP,
7639 settings->probe_resp_len, settings->probe_resp)))
7640 return -ENOBUFS;
7641
7642 return 0;
7643 }
7644
7645
7646 static int nl80211_switch_channel(void *priv, struct csa_settings *settings)
7647 {
7648 struct nl_msg *msg;
7649 struct i802_bss *bss = priv;
7650 struct wpa_driver_nl80211_data *drv = bss->drv;
7651 struct nlattr *beacon_csa;
7652 int ret = -ENOBUFS;
7653 int csa_off_len = 0;
7654 int i;
7655
7656 wpa_printf(MSG_DEBUG, "nl80211: Channel switch request (cs_count=%u block_tx=%u freq=%d width=%d cf1=%d cf2=%d)",
7657 settings->cs_count, settings->block_tx,
7658 settings->freq_params.freq, settings->freq_params.bandwidth,
7659 settings->freq_params.center_freq1,
7660 settings->freq_params.center_freq2);
7661
7662 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_AP_CSA)) {
7663 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support channel switch command");
7664 return -EOPNOTSUPP;
7665 }
7666
7667 if ((drv->nlmode != NL80211_IFTYPE_AP) &&
7668 (drv->nlmode != NL80211_IFTYPE_P2P_GO))
7669 return -EOPNOTSUPP;
7670
7671 /*
7672 * Remove empty counters, assuming Probe Response and Beacon frame
7673 * counters match. This implementation assumes that there are only two
7674 * counters.
7675 */
7676 if (settings->counter_offset_beacon[0] &&
7677 !settings->counter_offset_beacon[1]) {
7678 csa_off_len = 1;
7679 } else if (settings->counter_offset_beacon[1] &&
7680 !settings->counter_offset_beacon[0]) {
7681 csa_off_len = 1;
7682 settings->counter_offset_beacon[0] =
7683 settings->counter_offset_beacon[1];
7684 settings->counter_offset_presp[0] =
7685 settings->counter_offset_presp[1];
7686 } else if (settings->counter_offset_beacon[1] &&
7687 settings->counter_offset_beacon[0]) {
7688 csa_off_len = 2;
7689 } else {
7690 wpa_printf(MSG_ERROR, "nl80211: No CSA counters provided");
7691 return -EINVAL;
7692 }
7693
7694 /* Check CSA counters validity */
7695 if (drv->capa.max_csa_counters &&
7696 csa_off_len > drv->capa.max_csa_counters) {
7697 wpa_printf(MSG_ERROR,
7698 "nl80211: Too many CSA counters provided");
7699 return -EINVAL;
7700 }
7701
7702 if (!settings->beacon_csa.tail)
7703 return -EINVAL;
7704
7705 for (i = 0; i < csa_off_len; i++) {
7706 u16 csa_c_off_bcn = settings->counter_offset_beacon[i];
7707 u16 csa_c_off_presp = settings->counter_offset_presp[i];
7708
7709 if ((settings->beacon_csa.tail_len <= csa_c_off_bcn) ||
7710 (settings->beacon_csa.tail[csa_c_off_bcn] !=
7711 settings->cs_count))
7712 return -EINVAL;
7713
7714 if (settings->beacon_csa.probe_resp &&
7715 ((settings->beacon_csa.probe_resp_len <=
7716 csa_c_off_presp) ||
7717 (settings->beacon_csa.probe_resp[csa_c_off_presp] !=
7718 settings->cs_count)))
7719 return -EINVAL;
7720 }
7721
7722 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_CHANNEL_SWITCH)) ||
7723 nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT,
7724 settings->cs_count) ||
7725 (ret = nl80211_put_freq_params(msg, &settings->freq_params)) ||
7726 (settings->block_tx &&
7727 nla_put_flag(msg, NL80211_ATTR_CH_SWITCH_BLOCK_TX)))
7728 goto error;
7729
7730 /* beacon_after params */
7731 ret = set_beacon_data(msg, &settings->beacon_after);
7732 if (ret)
7733 goto error;
7734
7735 /* beacon_csa params */
7736 beacon_csa = nla_nest_start(msg, NL80211_ATTR_CSA_IES);
7737 if (!beacon_csa)
7738 goto fail;
7739
7740 ret = set_beacon_data(msg, &settings->beacon_csa);
7741 if (ret)
7742 goto error;
7743
7744 if (nla_put(msg, NL80211_ATTR_CSA_C_OFF_BEACON,
7745 csa_off_len * sizeof(u16),
7746 settings->counter_offset_beacon) ||
7747 (settings->beacon_csa.probe_resp &&
7748 nla_put(msg, NL80211_ATTR_CSA_C_OFF_PRESP,
7749 csa_off_len * sizeof(u16),
7750 settings->counter_offset_presp)))
7751 goto fail;
7752
7753 nla_nest_end(msg, beacon_csa);
7754 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7755 if (ret) {
7756 wpa_printf(MSG_DEBUG, "nl80211: switch_channel failed err=%d (%s)",
7757 ret, strerror(-ret));
7758 }
7759 return ret;
7760
7761 fail:
7762 ret = -ENOBUFS;
7763 error:
7764 nlmsg_free(msg);
7765 wpa_printf(MSG_DEBUG, "nl80211: Could not build channel switch request");
7766 return ret;
7767 }
7768
7769
7770 static int nl80211_add_ts(void *priv, u8 tsid, const u8 *addr,
7771 u8 user_priority, u16 admitted_time)
7772 {
7773 struct i802_bss *bss = priv;
7774 struct wpa_driver_nl80211_data *drv = bss->drv;
7775 struct nl_msg *msg;
7776 int ret;
7777
7778 wpa_printf(MSG_DEBUG,
7779 "nl80211: add_ts request: tsid=%u admitted_time=%u up=%d",
7780 tsid, admitted_time, user_priority);
7781
7782 if (!is_sta_interface(drv->nlmode))
7783 return -ENOTSUP;
7784
7785 msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_ADD_TX_TS);
7786 if (!msg ||
7787 nla_put_u8(msg, NL80211_ATTR_TSID, tsid) ||
7788 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
7789 nla_put_u8(msg, NL80211_ATTR_USER_PRIO, user_priority) ||
7790 nla_put_u16(msg, NL80211_ATTR_ADMITTED_TIME, admitted_time)) {
7791 nlmsg_free(msg);
7792 return -ENOBUFS;
7793 }
7794
7795 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7796 if (ret)
7797 wpa_printf(MSG_DEBUG, "nl80211: add_ts failed err=%d (%s)",
7798 ret, strerror(-ret));
7799 return ret;
7800 }
7801
7802
7803 static int nl80211_del_ts(void *priv, u8 tsid, const u8 *addr)
7804 {
7805 struct i802_bss *bss = priv;
7806 struct wpa_driver_nl80211_data *drv = bss->drv;
7807 struct nl_msg *msg;
7808 int ret;
7809
7810 wpa_printf(MSG_DEBUG, "nl80211: del_ts request: tsid=%u", tsid);
7811
7812 if (!is_sta_interface(drv->nlmode))
7813 return -ENOTSUP;
7814
7815 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_DEL_TX_TS)) ||
7816 nla_put_u8(msg, NL80211_ATTR_TSID, tsid) ||
7817 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) {
7818 nlmsg_free(msg);
7819 return -ENOBUFS;
7820 }
7821
7822 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7823 if (ret)
7824 wpa_printf(MSG_DEBUG, "nl80211: del_ts failed err=%d (%s)",
7825 ret, strerror(-ret));
7826 return ret;
7827 }
7828
7829
7830 #ifdef CONFIG_TESTING_OPTIONS
7831 static int cmd_reply_handler(struct nl_msg *msg, void *arg)
7832 {
7833 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
7834 struct wpabuf *buf = arg;
7835
7836 if (!buf)
7837 return NL_SKIP;
7838
7839 if ((size_t) genlmsg_attrlen(gnlh, 0) > wpabuf_tailroom(buf)) {
7840 wpa_printf(MSG_INFO, "nl80211: insufficient buffer space for reply");
7841 return NL_SKIP;
7842 }
7843
7844 wpabuf_put_data(buf, genlmsg_attrdata(gnlh, 0),
7845 genlmsg_attrlen(gnlh, 0));
7846
7847 return NL_SKIP;
7848 }
7849 #endif /* CONFIG_TESTING_OPTIONS */
7850
7851
7852 static int vendor_reply_handler(struct nl_msg *msg, void *arg)
7853 {
7854 struct nlattr *tb[NL80211_ATTR_MAX + 1];
7855 struct nlattr *nl_vendor_reply, *nl;
7856 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
7857 struct wpabuf *buf = arg;
7858 int rem;
7859
7860 if (!buf)
7861 return NL_SKIP;
7862
7863 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
7864 genlmsg_attrlen(gnlh, 0), NULL);
7865 nl_vendor_reply = tb[NL80211_ATTR_VENDOR_DATA];
7866
7867 if (!nl_vendor_reply)
7868 return NL_SKIP;
7869
7870 if ((size_t) nla_len(nl_vendor_reply) > wpabuf_tailroom(buf)) {
7871 wpa_printf(MSG_INFO, "nl80211: Vendor command: insufficient buffer space for reply");
7872 return NL_SKIP;
7873 }
7874
7875 nla_for_each_nested(nl, nl_vendor_reply, rem) {
7876 wpabuf_put_data(buf, nla_data(nl), nla_len(nl));
7877 }
7878
7879 return NL_SKIP;
7880 }
7881
7882
7883 static int nl80211_vendor_cmd(void *priv, unsigned int vendor_id,
7884 unsigned int subcmd, const u8 *data,
7885 size_t data_len, struct wpabuf *buf)
7886 {
7887 struct i802_bss *bss = priv;
7888 struct wpa_driver_nl80211_data *drv = bss->drv;
7889 struct nl_msg *msg;
7890 int ret;
7891
7892 #ifdef CONFIG_TESTING_OPTIONS
7893 if (vendor_id == 0xffffffff) {
7894 msg = nlmsg_alloc();
7895 if (!msg)
7896 return -ENOMEM;
7897
7898 nl80211_cmd(drv, msg, 0, subcmd);
7899 if (nlmsg_append(msg, (void *) data, data_len, NLMSG_ALIGNTO) <
7900 0)
7901 goto fail;
7902 ret = send_and_recv_msgs(drv, msg, cmd_reply_handler, buf);
7903 if (ret)
7904 wpa_printf(MSG_DEBUG, "nl80211: command failed err=%d",
7905 ret);
7906 return ret;
7907 }
7908 #endif /* CONFIG_TESTING_OPTIONS */
7909
7910 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_VENDOR)) ||
7911 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, vendor_id) ||
7912 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, subcmd) ||
7913 (data &&
7914 nla_put(msg, NL80211_ATTR_VENDOR_DATA, data_len, data)))
7915 goto fail;
7916
7917 ret = send_and_recv_msgs(drv, msg, vendor_reply_handler, buf);
7918 if (ret)
7919 wpa_printf(MSG_DEBUG, "nl80211: vendor command failed err=%d",
7920 ret);
7921 return ret;
7922
7923 fail:
7924 nlmsg_free(msg);
7925 return -ENOBUFS;
7926 }
7927
7928
7929 static int nl80211_set_qos_map(void *priv, const u8 *qos_map_set,
7930 u8 qos_map_set_len)
7931 {
7932 struct i802_bss *bss = priv;
7933 struct wpa_driver_nl80211_data *drv = bss->drv;
7934 struct nl_msg *msg;
7935 int ret;
7936
7937 wpa_hexdump(MSG_DEBUG, "nl80211: Setting QoS Map",
7938 qos_map_set, qos_map_set_len);
7939
7940 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_SET_QOS_MAP)) ||
7941 nla_put(msg, NL80211_ATTR_QOS_MAP, qos_map_set_len, qos_map_set)) {
7942 nlmsg_free(msg);
7943 return -ENOBUFS;
7944 }
7945
7946 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7947 if (ret)
7948 wpa_printf(MSG_DEBUG, "nl80211: Setting QoS Map failed");
7949
7950 return ret;
7951 }
7952
7953
7954 static int nl80211_set_wowlan(void *priv,
7955 const struct wowlan_triggers *triggers)
7956 {
7957 struct i802_bss *bss = priv;
7958 struct wpa_driver_nl80211_data *drv = bss->drv;
7959 struct nl_msg *msg;
7960 struct nlattr *wowlan_triggers;
7961 int ret;
7962
7963 wpa_printf(MSG_DEBUG, "nl80211: Setting wowlan");
7964
7965 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_SET_WOWLAN)) ||
7966 !(wowlan_triggers = nla_nest_start(msg,
7967 NL80211_ATTR_WOWLAN_TRIGGERS)) ||
7968 (triggers->any &&
7969 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
7970 (triggers->disconnect &&
7971 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
7972 (triggers->magic_pkt &&
7973 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
7974 (triggers->gtk_rekey_failure &&
7975 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
7976 (triggers->eap_identity_req &&
7977 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
7978 (triggers->four_way_handshake &&
7979 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
7980 (triggers->rfkill_release &&
7981 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))) {
7982 nlmsg_free(msg);
7983 return -ENOBUFS;
7984 }
7985
7986 nla_nest_end(msg, wowlan_triggers);
7987
7988 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7989 if (ret)
7990 wpa_printf(MSG_DEBUG, "nl80211: Setting wowlan failed");
7991
7992 return ret;
7993 }
7994
7995
7996 #ifdef CONFIG_DRIVER_NL80211_QCA
7997 static int nl80211_roaming(void *priv, int allowed, const u8 *bssid)
7998 {
7999 struct i802_bss *bss = priv;
8000 struct wpa_driver_nl80211_data *drv = bss->drv;
8001 struct nl_msg *msg;
8002 struct nlattr *params;
8003
8004 wpa_printf(MSG_DEBUG, "nl80211: Roaming policy: allowed=%d", allowed);
8005
8006 if (!drv->roaming_vendor_cmd_avail) {
8007 wpa_printf(MSG_DEBUG,
8008 "nl80211: Ignore roaming policy change since driver does not provide command for setting it");
8009 return -1;
8010 }
8011
8012 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
8013 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
8014 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
8015 QCA_NL80211_VENDOR_SUBCMD_ROAMING) ||
8016 !(params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) ||
8017 nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_ROAMING_POLICY,
8018 allowed ? QCA_ROAMING_ALLOWED_WITHIN_ESS :
8019 QCA_ROAMING_NOT_ALLOWED) ||
8020 (bssid &&
8021 nla_put(msg, QCA_WLAN_VENDOR_ATTR_MAC_ADDR, ETH_ALEN, bssid))) {
8022 nlmsg_free(msg);
8023 return -1;
8024 }
8025 nla_nest_end(msg, params);
8026
8027 return send_and_recv_msgs(drv, msg, NULL, NULL);
8028 }
8029 #endif /* CONFIG_DRIVER_NL80211_QCA */
8030
8031
8032 static int nl80211_set_mac_addr(void *priv, const u8 *addr)
8033 {
8034 struct i802_bss *bss = priv;
8035 struct wpa_driver_nl80211_data *drv = bss->drv;
8036 int new_addr = addr != NULL;
8037
8038 if (!addr)
8039 addr = drv->perm_addr;
8040
8041 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0) < 0)
8042 return -1;
8043
8044 if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, addr) < 0)
8045 {
8046 wpa_printf(MSG_DEBUG,
8047 "nl80211: failed to set_mac_addr for %s to " MACSTR,
8048 bss->ifname, MAC2STR(addr));
8049 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname,
8050 1) < 0) {
8051 wpa_printf(MSG_DEBUG,
8052 "nl80211: Could not restore interface UP after failed set_mac_addr");
8053 }
8054 return -1;
8055 }
8056
8057 wpa_printf(MSG_DEBUG, "nl80211: set_mac_addr for %s to " MACSTR,
8058 bss->ifname, MAC2STR(addr));
8059 drv->addr_changed = new_addr;
8060 os_memcpy(bss->addr, addr, ETH_ALEN);
8061
8062 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1) < 0)
8063 {
8064 wpa_printf(MSG_DEBUG,
8065 "nl80211: Could not restore interface UP after set_mac_addr");
8066 }
8067
8068 return 0;
8069 }
8070
8071
8072 #ifdef CONFIG_MESH
8073
8074 static int wpa_driver_nl80211_init_mesh(void *priv)
8075 {
8076 if (wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_MESH_POINT)) {
8077 wpa_printf(MSG_INFO,
8078 "nl80211: Failed to set interface into mesh mode");
8079 return -1;
8080 }
8081 return 0;
8082 }
8083
8084
8085 static int nl80211_put_mesh_id(struct nl_msg *msg, const u8 *mesh_id,
8086 size_t mesh_id_len)
8087 {
8088 if (mesh_id) {
8089 wpa_hexdump_ascii(MSG_DEBUG, " * Mesh ID (SSID)",
8090 mesh_id, mesh_id_len);
8091 return nla_put(msg, NL80211_ATTR_MESH_ID, mesh_id_len, mesh_id);
8092 }
8093
8094 return 0;
8095 }
8096
8097
8098 static int nl80211_join_mesh(struct i802_bss *bss,
8099 struct wpa_driver_mesh_join_params *params)
8100 {
8101 struct wpa_driver_nl80211_data *drv = bss->drv;
8102 struct nl_msg *msg;
8103 struct nlattr *container;
8104 int ret = -1;
8105
8106 wpa_printf(MSG_DEBUG, "nl80211: mesh join (ifindex=%d)", drv->ifindex);
8107 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_JOIN_MESH);
8108 if (!msg ||
8109 nl80211_put_freq_params(msg, &params->freq) ||
8110 nl80211_put_basic_rates(msg, params->basic_rates) ||
8111 nl80211_put_mesh_id(msg, params->meshid, params->meshid_len) ||
8112 nl80211_put_beacon_int(msg, params->beacon_int))
8113 goto fail;
8114
8115 wpa_printf(MSG_DEBUG, " * flags=%08X", params->flags);
8116
8117 container = nla_nest_start(msg, NL80211_ATTR_MESH_SETUP);
8118 if (!container)
8119 goto fail;
8120
8121 if (params->ies) {
8122 wpa_hexdump(MSG_DEBUG, " * IEs", params->ies, params->ie_len);
8123 if (nla_put(msg, NL80211_MESH_SETUP_IE, params->ie_len,
8124 params->ies))
8125 goto fail;
8126 }
8127 /* WPA_DRIVER_MESH_FLAG_OPEN_AUTH is treated as default by nl80211 */
8128 if (params->flags & WPA_DRIVER_MESH_FLAG_SAE_AUTH) {
8129 if (nla_put_u8(msg, NL80211_MESH_SETUP_AUTH_PROTOCOL, 0x1) ||
8130 nla_put_flag(msg, NL80211_MESH_SETUP_USERSPACE_AUTH))
8131 goto fail;
8132 }
8133 if ((params->flags & WPA_DRIVER_MESH_FLAG_AMPE) &&
8134 nla_put_flag(msg, NL80211_MESH_SETUP_USERSPACE_AMPE))
8135 goto fail;
8136 if ((params->flags & WPA_DRIVER_MESH_FLAG_USER_MPM) &&
8137 nla_put_flag(msg, NL80211_MESH_SETUP_USERSPACE_MPM))
8138 goto fail;
8139 nla_nest_end(msg, container);
8140
8141 container = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
8142 if (!container)
8143 goto fail;
8144
8145 if (!(params->conf.flags & WPA_DRIVER_MESH_CONF_FLAG_AUTO_PLINKS) &&
8146 nla_put_u32(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS, 0))
8147 goto fail;
8148 if ((params->conf.flags & WPA_DRIVER_MESH_FLAG_DRIVER_MPM) &&
8149 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
8150 params->max_peer_links))
8151 goto fail;
8152
8153 /*
8154 * Set NL80211_MESHCONF_PLINK_TIMEOUT even if user mpm is used because
8155 * the timer could disconnect stations even in that case.
8156 */
8157 if (nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
8158 params->conf.peer_link_timeout)) {
8159 wpa_printf(MSG_ERROR, "nl80211: Failed to set PLINK_TIMEOUT");
8160 goto fail;
8161 }
8162
8163 nla_nest_end(msg, container);
8164
8165 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8166 msg = NULL;
8167 if (ret) {
8168 wpa_printf(MSG_DEBUG, "nl80211: mesh join failed: ret=%d (%s)",
8169 ret, strerror(-ret));
8170 goto fail;
8171 }
8172 ret = 0;
8173 bss->freq = params->freq.freq;
8174 wpa_printf(MSG_DEBUG, "nl80211: mesh join request send successfully");
8175
8176 fail:
8177 nlmsg_free(msg);
8178 return ret;
8179 }
8180
8181
8182 static int
8183 wpa_driver_nl80211_join_mesh(void *priv,
8184 struct wpa_driver_mesh_join_params *params)
8185 {
8186 struct i802_bss *bss = priv;
8187 int ret, timeout;
8188
8189 timeout = params->conf.peer_link_timeout;
8190
8191 /* Disable kernel inactivity timer */
8192 if (params->flags & WPA_DRIVER_MESH_FLAG_USER_MPM)
8193 params->conf.peer_link_timeout = 0;
8194
8195 ret = nl80211_join_mesh(bss, params);
8196 if (ret == -EINVAL && params->conf.peer_link_timeout == 0) {
8197 wpa_printf(MSG_DEBUG,
8198 "nl80211: Mesh join retry for peer_link_timeout");
8199 /*
8200 * Old kernel does not support setting
8201 * NL80211_MESHCONF_PLINK_TIMEOUT to zero, so set 60 seconds
8202 * into future from peer_link_timeout.
8203 */
8204 params->conf.peer_link_timeout = timeout + 60;
8205 ret = nl80211_join_mesh(priv, params);
8206 }
8207
8208 params->conf.peer_link_timeout = timeout;
8209 return ret;
8210 }
8211
8212
8213 static int wpa_driver_nl80211_leave_mesh(void *priv)
8214 {
8215 struct i802_bss *bss = priv;
8216 struct wpa_driver_nl80211_data *drv = bss->drv;
8217 struct nl_msg *msg;
8218 int ret;
8219
8220 wpa_printf(MSG_DEBUG, "nl80211: mesh leave (ifindex=%d)", drv->ifindex);
8221 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_LEAVE_MESH);
8222 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8223 if (ret) {
8224 wpa_printf(MSG_DEBUG, "nl80211: mesh leave failed: ret=%d (%s)",
8225 ret, strerror(-ret));
8226 } else {
8227 wpa_printf(MSG_DEBUG,
8228 "nl80211: mesh leave request send successfully");
8229 }
8230
8231 if (wpa_driver_nl80211_set_mode(drv->first_bss,
8232 NL80211_IFTYPE_STATION)) {
8233 wpa_printf(MSG_INFO,
8234 "nl80211: Failed to set interface into station mode");
8235 }
8236 return ret;
8237 }
8238
8239 #endif /* CONFIG_MESH */
8240
8241
8242 static int wpa_driver_br_add_ip_neigh(void *priv, u8 version,
8243 const u8 *ipaddr, int prefixlen,
8244 const u8 *addr)
8245 {
8246 #ifdef CONFIG_LIBNL3_ROUTE
8247 struct i802_bss *bss = priv;
8248 struct wpa_driver_nl80211_data *drv = bss->drv;
8249 struct rtnl_neigh *rn;
8250 struct nl_addr *nl_ipaddr = NULL;
8251 struct nl_addr *nl_lladdr = NULL;
8252 int family, addrsize;
8253 int res;
8254
8255 if (!ipaddr || prefixlen == 0 || !addr)
8256 return -EINVAL;
8257
8258 if (bss->br_ifindex == 0) {
8259 wpa_printf(MSG_DEBUG,
8260 "nl80211: bridge must be set before adding an ip neigh to it");
8261 return -1;
8262 }
8263
8264 if (!drv->rtnl_sk) {
8265 wpa_printf(MSG_DEBUG,
8266 "nl80211: nl_sock for NETLINK_ROUTE is not initialized");
8267 return -1;
8268 }
8269
8270 if (version == 4) {
8271 family = AF_INET;
8272 addrsize = 4;
8273 } else if (version == 6) {
8274 family = AF_INET6;
8275 addrsize = 16;
8276 } else {
8277 return -EINVAL;
8278 }
8279
8280 rn = rtnl_neigh_alloc();
8281 if (rn == NULL)
8282 return -ENOMEM;
8283
8284 /* set the destination ip address for neigh */
8285 nl_ipaddr = nl_addr_build(family, (void *) ipaddr, addrsize);
8286 if (nl_ipaddr == NULL) {
8287 wpa_printf(MSG_DEBUG, "nl80211: nl_ipaddr build failed");
8288 res = -ENOMEM;
8289 goto errout;
8290 }
8291 nl_addr_set_prefixlen(nl_ipaddr, prefixlen);
8292 res = rtnl_neigh_set_dst(rn, nl_ipaddr);
8293 if (res) {
8294 wpa_printf(MSG_DEBUG,
8295 "nl80211: neigh set destination addr failed");
8296 goto errout;
8297 }
8298
8299 /* set the corresponding lladdr for neigh */
8300 nl_lladdr = nl_addr_build(AF_BRIDGE, (u8 *) addr, ETH_ALEN);
8301 if (nl_lladdr == NULL) {
8302 wpa_printf(MSG_DEBUG, "nl80211: neigh set lladdr failed");
8303 res = -ENOMEM;
8304 goto errout;
8305 }
8306 rtnl_neigh_set_lladdr(rn, nl_lladdr);
8307
8308 rtnl_neigh_set_ifindex(rn, bss->br_ifindex);
8309 rtnl_neigh_set_state(rn, NUD_PERMANENT);
8310
8311 res = rtnl_neigh_add(drv->rtnl_sk, rn, NLM_F_CREATE);
8312 if (res) {
8313 wpa_printf(MSG_DEBUG,
8314 "nl80211: Adding bridge ip neigh failed: %s",
8315 strerror(errno));
8316 }
8317 errout:
8318 if (nl_lladdr)
8319 nl_addr_put(nl_lladdr);
8320 if (nl_ipaddr)
8321 nl_addr_put(nl_ipaddr);
8322 if (rn)
8323 rtnl_neigh_put(rn);
8324 return res;
8325 #else /* CONFIG_LIBNL3_ROUTE */
8326 return -1;
8327 #endif /* CONFIG_LIBNL3_ROUTE */
8328 }
8329
8330
8331 static int wpa_driver_br_delete_ip_neigh(void *priv, u8 version,
8332 const u8 *ipaddr)
8333 {
8334 #ifdef CONFIG_LIBNL3_ROUTE
8335 struct i802_bss *bss = priv;
8336 struct wpa_driver_nl80211_data *drv = bss->drv;
8337 struct rtnl_neigh *rn;
8338 struct nl_addr *nl_ipaddr;
8339 int family, addrsize;
8340 int res;
8341
8342 if (!ipaddr)
8343 return -EINVAL;
8344
8345 if (version == 4) {
8346 family = AF_INET;
8347 addrsize = 4;
8348 } else if (version == 6) {
8349 family = AF_INET6;
8350 addrsize = 16;
8351 } else {
8352 return -EINVAL;
8353 }
8354
8355 if (bss->br_ifindex == 0) {
8356 wpa_printf(MSG_DEBUG,
8357 "nl80211: bridge must be set to delete an ip neigh");
8358 return -1;
8359 }
8360
8361 if (!drv->rtnl_sk) {
8362 wpa_printf(MSG_DEBUG,
8363 "nl80211: nl_sock for NETLINK_ROUTE is not initialized");
8364 return -1;
8365 }
8366
8367 rn = rtnl_neigh_alloc();
8368 if (rn == NULL)
8369 return -ENOMEM;
8370
8371 /* set the destination ip address for neigh */
8372 nl_ipaddr = nl_addr_build(family, (void *) ipaddr, addrsize);
8373 if (nl_ipaddr == NULL) {
8374 wpa_printf(MSG_DEBUG, "nl80211: nl_ipaddr build failed");
8375 res = -ENOMEM;
8376 goto errout;
8377 }
8378 res = rtnl_neigh_set_dst(rn, nl_ipaddr);
8379 if (res) {
8380 wpa_printf(MSG_DEBUG,
8381 "nl80211: neigh set destination addr failed");
8382 goto errout;
8383 }
8384
8385 rtnl_neigh_set_ifindex(rn, bss->br_ifindex);
8386
8387 res = rtnl_neigh_delete(drv->rtnl_sk, rn, 0);
8388 if (res) {
8389 wpa_printf(MSG_DEBUG,
8390 "nl80211: Deleting bridge ip neigh failed: %s",
8391 strerror(errno));
8392 }
8393 errout:
8394 if (nl_ipaddr)
8395 nl_addr_put(nl_ipaddr);
8396 if (rn)
8397 rtnl_neigh_put(rn);
8398 return res;
8399 #else /* CONFIG_LIBNL3_ROUTE */
8400 return -1;
8401 #endif /* CONFIG_LIBNL3_ROUTE */
8402 }
8403
8404
8405 static int linux_write_system_file(const char *path, unsigned int val)
8406 {
8407 char buf[50];
8408 int fd, len;
8409
8410 len = os_snprintf(buf, sizeof(buf), "%u\n", val);
8411 if (os_snprintf_error(sizeof(buf), len))
8412 return -1;
8413
8414 fd = open(path, O_WRONLY);
8415 if (fd < 0)
8416 return -1;
8417
8418 if (write(fd, buf, len) < 0) {
8419 wpa_printf(MSG_DEBUG,
8420 "nl80211: Failed to write Linux system file: %s with the value of %d",
8421 path, val);
8422 close(fd);
8423 return -1;
8424 }
8425 close(fd);
8426
8427 return 0;
8428 }
8429
8430
8431 static const char * drv_br_port_attr_str(enum drv_br_port_attr attr)
8432 {
8433 switch (attr) {
8434 case DRV_BR_PORT_ATTR_PROXYARP:
8435 return "proxyarp_wifi";
8436 case DRV_BR_PORT_ATTR_HAIRPIN_MODE:
8437 return "hairpin_mode";
8438 }
8439
8440 return NULL;
8441 }
8442
8443
8444 static int wpa_driver_br_port_set_attr(void *priv, enum drv_br_port_attr attr,
8445 unsigned int val)
8446 {
8447 struct i802_bss *bss = priv;
8448 char path[128];
8449 const char *attr_txt;
8450
8451 attr_txt = drv_br_port_attr_str(attr);
8452 if (attr_txt == NULL)
8453 return -EINVAL;
8454
8455 os_snprintf(path, sizeof(path), "/sys/class/net/%s/brport/%s",
8456 bss->ifname, attr_txt);
8457
8458 if (linux_write_system_file(path, val))
8459 return -1;
8460
8461 return 0;
8462 }
8463
8464
8465 static const char * drv_br_net_param_str(enum drv_br_net_param param)
8466 {
8467 switch (param) {
8468 case DRV_BR_NET_PARAM_GARP_ACCEPT:
8469 return "arp_accept";
8470 default:
8471 return NULL;
8472 }
8473 }
8474
8475
8476 static int wpa_driver_br_set_net_param(void *priv, enum drv_br_net_param param,
8477 unsigned int val)
8478 {
8479 struct i802_bss *bss = priv;
8480 char path[128];
8481 const char *param_txt;
8482 int ip_version = 4;
8483
8484 if (param == DRV_BR_MULTICAST_SNOOPING) {
8485 os_snprintf(path, sizeof(path),
8486 "/sys/devices/virtual/net/%s/bridge/multicast_snooping",
8487 bss->brname);
8488 goto set_val;
8489 }
8490
8491 param_txt = drv_br_net_param_str(param);
8492 if (param_txt == NULL)
8493 return -EINVAL;
8494
8495 switch (param) {
8496 case DRV_BR_NET_PARAM_GARP_ACCEPT:
8497 ip_version = 4;
8498 break;
8499 default:
8500 return -EINVAL;
8501 }
8502
8503 os_snprintf(path, sizeof(path), "/proc/sys/net/ipv%d/conf/%s/%s",
8504 ip_version, bss->brname, param_txt);
8505
8506 set_val:
8507 if (linux_write_system_file(path, val))
8508 return -1;
8509
8510 return 0;
8511 }
8512
8513
8514 #ifdef CONFIG_DRIVER_NL80211_QCA
8515
8516 static int hw_mode_to_qca_acs(enum hostapd_hw_mode hw_mode)
8517 {
8518 switch (hw_mode) {
8519 case HOSTAPD_MODE_IEEE80211B:
8520 return QCA_ACS_MODE_IEEE80211B;
8521 case HOSTAPD_MODE_IEEE80211G:
8522 return QCA_ACS_MODE_IEEE80211G;
8523 case HOSTAPD_MODE_IEEE80211A:
8524 return QCA_ACS_MODE_IEEE80211A;
8525 case HOSTAPD_MODE_IEEE80211AD:
8526 return QCA_ACS_MODE_IEEE80211AD;
8527 case HOSTAPD_MODE_IEEE80211ANY:
8528 return QCA_ACS_MODE_IEEE80211ANY;
8529 default:
8530 return -1;
8531 }
8532 }
8533
8534
8535 static int add_acs_freq_list(struct nl_msg *msg, const int *freq_list)
8536 {
8537 int i, len, ret;
8538 u32 *freqs;
8539
8540 if (!freq_list)
8541 return 0;
8542 len = int_array_len(freq_list);
8543 freqs = os_malloc(sizeof(u32) * len);
8544 if (!freqs)
8545 return -1;
8546 for (i = 0; i < len; i++)
8547 freqs[i] = freq_list[i];
8548 ret = nla_put(msg, QCA_WLAN_VENDOR_ATTR_ACS_FREQ_LIST,
8549 sizeof(u32) * len, freqs);
8550 os_free(freqs);
8551 return ret;
8552 }
8553
8554
8555 static int wpa_driver_do_acs(void *priv, struct drv_acs_params *params)
8556 {
8557 struct i802_bss *bss = priv;
8558 struct wpa_driver_nl80211_data *drv = bss->drv;
8559 struct nl_msg *msg;
8560 struct nlattr *data;
8561 int ret;
8562 int mode;
8563
8564 mode = hw_mode_to_qca_acs(params->hw_mode);
8565 if (mode < 0)
8566 return -1;
8567
8568 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
8569 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
8570 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
8571 QCA_NL80211_VENDOR_SUBCMD_DO_ACS) ||
8572 !(data = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) ||
8573 nla_put_u8(msg, QCA_WLAN_VENDOR_ATTR_ACS_HW_MODE, mode) ||
8574 (params->ht_enabled &&
8575 nla_put_flag(msg, QCA_WLAN_VENDOR_ATTR_ACS_HT_ENABLED)) ||
8576 (params->ht40_enabled &&
8577 nla_put_flag(msg, QCA_WLAN_VENDOR_ATTR_ACS_HT40_ENABLED)) ||
8578 (params->vht_enabled &&
8579 nla_put_flag(msg, QCA_WLAN_VENDOR_ATTR_ACS_VHT_ENABLED)) ||
8580 nla_put_u16(msg, QCA_WLAN_VENDOR_ATTR_ACS_CHWIDTH,
8581 params->ch_width) ||
8582 (params->ch_list_len &&
8583 nla_put(msg, QCA_WLAN_VENDOR_ATTR_ACS_CH_LIST, params->ch_list_len,
8584 params->ch_list)) ||
8585 add_acs_freq_list(msg, params->freq_list)) {
8586 nlmsg_free(msg);
8587 return -ENOBUFS;
8588 }
8589 nla_nest_end(msg, data);
8590
8591 wpa_printf(MSG_DEBUG,
8592 "nl80211: ACS Params: HW_MODE: %d HT: %d HT40: %d VHT: %d BW: %d CH_LIST_LEN: %u",
8593 params->hw_mode, params->ht_enabled, params->ht40_enabled,
8594 params->vht_enabled, params->ch_width, params->ch_list_len);
8595
8596 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8597 if (ret) {
8598 wpa_printf(MSG_DEBUG,
8599 "nl80211: Failed to invoke driver ACS function: %s",
8600 strerror(errno));
8601 }
8602 return ret;
8603 }
8604
8605
8606 static int nl80211_set_band(void *priv, enum set_band band)
8607 {
8608 struct i802_bss *bss = priv;
8609 struct wpa_driver_nl80211_data *drv = bss->drv;
8610 struct nl_msg *msg;
8611 struct nlattr *data;
8612 int ret;
8613 enum qca_set_band qca_band;
8614
8615 if (!drv->setband_vendor_cmd_avail)
8616 return -1;
8617
8618 switch (band) {
8619 case WPA_SETBAND_AUTO:
8620 qca_band = QCA_SETBAND_AUTO;
8621 break;
8622 case WPA_SETBAND_5G:
8623 qca_band = QCA_SETBAND_5G;
8624 break;
8625 case WPA_SETBAND_2G:
8626 qca_band = QCA_SETBAND_2G;
8627 break;
8628 default:
8629 return -1;
8630 }
8631
8632 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
8633 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
8634 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
8635 QCA_NL80211_VENDOR_SUBCMD_SETBAND) ||
8636 !(data = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) ||
8637 nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_SETBAND_VALUE, qca_band)) {
8638 nlmsg_free(msg);
8639 return -ENOBUFS;
8640 }
8641 nla_nest_end(msg, data);
8642
8643 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8644 if (ret) {
8645 wpa_printf(MSG_DEBUG,
8646 "nl80211: Driver setband function failed: %s",
8647 strerror(errno));
8648 }
8649 return ret;
8650 }
8651
8652
8653 struct nl80211_pcl {
8654 unsigned int num;
8655 unsigned int *freq_list;
8656 };
8657
8658 static int preferred_freq_info_handler(struct nl_msg *msg, void *arg)
8659 {
8660 struct nlattr *tb[NL80211_ATTR_MAX + 1];
8661 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
8662 struct nl80211_pcl *param = arg;
8663 struct nlattr *nl_vend, *attr;
8664 enum qca_iface_type iface_type;
8665 struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_MAX + 1];
8666 unsigned int num, max_num;
8667 u32 *freqs;
8668
8669 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
8670 genlmsg_attrlen(gnlh, 0), NULL);
8671
8672 nl_vend = tb[NL80211_ATTR_VENDOR_DATA];
8673 if (!nl_vend)
8674 return NL_SKIP;
8675
8676 nla_parse(tb_vendor, QCA_WLAN_VENDOR_ATTR_MAX,
8677 nla_data(nl_vend), nla_len(nl_vend), NULL);
8678
8679 attr = tb_vendor[
8680 QCA_WLAN_VENDOR_ATTR_GET_PREFERRED_FREQ_LIST_IFACE_TYPE];
8681 if (!attr) {
8682 wpa_printf(MSG_ERROR, "nl80211: iface_type couldn't be found");
8683 param->num = 0;
8684 return NL_SKIP;
8685 }
8686
8687 iface_type = (enum qca_iface_type) nla_get_u32(attr);
8688 wpa_printf(MSG_DEBUG, "nl80211: Driver returned iface_type=%d",
8689 iface_type);
8690
8691 attr = tb_vendor[QCA_WLAN_VENDOR_ATTR_GET_PREFERRED_FREQ_LIST];
8692 if (!attr) {
8693 wpa_printf(MSG_ERROR,
8694 "nl80211: preferred_freq_list couldn't be found");
8695 param->num = 0;
8696 return NL_SKIP;
8697 }
8698
8699 /*
8700 * param->num has the maximum number of entries for which there
8701 * is room in the freq_list provided by the caller.
8702 */
8703 freqs = nla_data(attr);
8704 max_num = nla_len(attr) / sizeof(u32);
8705 if (max_num > param->num)
8706 max_num = param->num;
8707 for (num = 0; num < max_num; num++)
8708 param->freq_list[num] = freqs[num];
8709 param->num = num;
8710
8711 return NL_SKIP;
8712 }
8713
8714
8715 static int nl80211_get_pref_freq_list(void *priv,
8716 enum wpa_driver_if_type if_type,
8717 unsigned int *num,
8718 unsigned int *freq_list)
8719 {
8720 struct i802_bss *bss = priv;
8721 struct wpa_driver_nl80211_data *drv = bss->drv;
8722 struct nl_msg *msg;
8723 int ret;
8724 unsigned int i;
8725 struct nlattr *params;
8726 struct nl80211_pcl param;
8727 enum qca_iface_type iface_type;
8728
8729 if (!drv->get_pref_freq_list)
8730 return -1;
8731
8732 switch (if_type) {
8733 case WPA_IF_STATION:
8734 iface_type = QCA_IFACE_TYPE_STA;
8735 break;
8736 case WPA_IF_AP_BSS:
8737 iface_type = QCA_IFACE_TYPE_AP;
8738 break;
8739 case WPA_IF_P2P_GO:
8740 iface_type = QCA_IFACE_TYPE_P2P_GO;
8741 break;
8742 case WPA_IF_P2P_CLIENT:
8743 iface_type = QCA_IFACE_TYPE_P2P_CLIENT;
8744 break;
8745 case WPA_IF_IBSS:
8746 iface_type = QCA_IFACE_TYPE_IBSS;
8747 break;
8748 case WPA_IF_TDLS:
8749 iface_type = QCA_IFACE_TYPE_TDLS;
8750 break;
8751 default:
8752 return -1;
8753 }
8754
8755 param.num = *num;
8756 param.freq_list = freq_list;
8757
8758 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
8759 nla_put_u32(msg, NL80211_ATTR_IFINDEX, drv->ifindex) ||
8760 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
8761 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
8762 QCA_NL80211_VENDOR_SUBCMD_GET_PREFERRED_FREQ_LIST) ||
8763 !(params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) ||
8764 nla_put_u32(msg,
8765 QCA_WLAN_VENDOR_ATTR_GET_PREFERRED_FREQ_LIST_IFACE_TYPE,
8766 iface_type)) {
8767 wpa_printf(MSG_ERROR,
8768 "%s: err in adding vendor_cmd and vendor_data",
8769 __func__);
8770 nlmsg_free(msg);
8771 return -1;
8772 }
8773 nla_nest_end(msg, params);
8774
8775 os_memset(freq_list, 0, *num * sizeof(freq_list[0]));
8776 ret = send_and_recv_msgs(drv, msg, preferred_freq_info_handler, &param);
8777 if (ret) {
8778 wpa_printf(MSG_ERROR,
8779 "%s: err in send_and_recv_msgs", __func__);
8780 return ret;
8781 }
8782
8783 *num = param.num;
8784
8785 for (i = 0; i < *num; i++) {
8786 wpa_printf(MSG_DEBUG, "nl80211: preferred_channel_list[%d]=%d",
8787 i, freq_list[i]);
8788 }
8789
8790 return 0;
8791 }
8792
8793
8794 static int nl80211_set_prob_oper_freq(void *priv, unsigned int freq)
8795 {
8796 struct i802_bss *bss = priv;
8797 struct wpa_driver_nl80211_data *drv = bss->drv;
8798 struct nl_msg *msg;
8799 int ret;
8800 struct nlattr *params;
8801
8802 if (!drv->set_prob_oper_freq)
8803 return -1;
8804
8805 wpa_printf(MSG_DEBUG,
8806 "nl80211: Set P2P probable operating freq %u for ifindex %d",
8807 freq, bss->ifindex);
8808
8809 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
8810 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
8811 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
8812 QCA_NL80211_VENDOR_SUBCMD_SET_PROBABLE_OPER_CHANNEL) ||
8813 !(params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) ||
8814 nla_put_u32(msg,
8815 QCA_WLAN_VENDOR_ATTR_PROBABLE_OPER_CHANNEL_IFACE_TYPE,
8816 QCA_IFACE_TYPE_P2P_CLIENT) ||
8817 nla_put_u32(msg,
8818 QCA_WLAN_VENDOR_ATTR_PROBABLE_OPER_CHANNEL_FREQ,
8819 freq)) {
8820 wpa_printf(MSG_ERROR,
8821 "%s: err in adding vendor_cmd and vendor_data",
8822 __func__);
8823 nlmsg_free(msg);
8824 return -1;
8825 }
8826 nla_nest_end(msg, params);
8827
8828 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8829 msg = NULL;
8830 if (ret) {
8831 wpa_printf(MSG_ERROR, "%s: err in send_and_recv_msgs",
8832 __func__);
8833 return ret;
8834 }
8835 nlmsg_free(msg);
8836 return 0;
8837 }
8838
8839 #endif /* CONFIG_DRIVER_NL80211_QCA */
8840
8841
8842 const struct wpa_driver_ops wpa_driver_nl80211_ops = {
8843 .name = "nl80211",
8844 .desc = "Linux nl80211/cfg80211",
8845 .get_bssid = wpa_driver_nl80211_get_bssid,
8846 .get_ssid = wpa_driver_nl80211_get_ssid,
8847 .set_key = driver_nl80211_set_key,
8848 .scan2 = driver_nl80211_scan2,
8849 .sched_scan = wpa_driver_nl80211_sched_scan,
8850 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan,
8851 .get_scan_results2 = wpa_driver_nl80211_get_scan_results,
8852 .abort_scan = wpa_driver_nl80211_abort_scan,
8853 .deauthenticate = driver_nl80211_deauthenticate,
8854 .authenticate = driver_nl80211_authenticate,
8855 .associate = wpa_driver_nl80211_associate,
8856 .global_init = nl80211_global_init,
8857 .global_deinit = nl80211_global_deinit,
8858 .init2 = wpa_driver_nl80211_init,
8859 .deinit = driver_nl80211_deinit,
8860 .get_capa = wpa_driver_nl80211_get_capa,
8861 .set_operstate = wpa_driver_nl80211_set_operstate,
8862 .set_supp_port = wpa_driver_nl80211_set_supp_port,
8863 .set_country = wpa_driver_nl80211_set_country,
8864 .get_country = wpa_driver_nl80211_get_country,
8865 .set_ap = wpa_driver_nl80211_set_ap,
8866 .set_acl = wpa_driver_nl80211_set_acl,
8867 .if_add = wpa_driver_nl80211_if_add,
8868 .if_remove = driver_nl80211_if_remove,
8869 .send_mlme = driver_nl80211_send_mlme,
8870 .get_hw_feature_data = nl80211_get_hw_feature_data,
8871 .sta_add = wpa_driver_nl80211_sta_add,
8872 .sta_remove = driver_nl80211_sta_remove,
8873 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol,
8874 .sta_set_flags = wpa_driver_nl80211_sta_set_flags,
8875 .hapd_init = i802_init,
8876 .hapd_deinit = i802_deinit,
8877 .set_wds_sta = i802_set_wds_sta,
8878 .get_seqnum = i802_get_seqnum,
8879 .flush = i802_flush,
8880 .get_inact_sec = i802_get_inact_sec,
8881 .sta_clear_stats = i802_sta_clear_stats,
8882 .set_rts = i802_set_rts,
8883 .set_frag = i802_set_frag,
8884 .set_tx_queue_params = i802_set_tx_queue_params,
8885 .set_sta_vlan = driver_nl80211_set_sta_vlan,
8886 .sta_deauth = i802_sta_deauth,
8887 .sta_disassoc = i802_sta_disassoc,
8888 .read_sta_data = driver_nl80211_read_sta_data,
8889 .set_freq = i802_set_freq,
8890 .send_action = driver_nl80211_send_action,
8891 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait,
8892 .remain_on_channel = wpa_driver_nl80211_remain_on_channel,
8893 .cancel_remain_on_channel =
8894 wpa_driver_nl80211_cancel_remain_on_channel,
8895 .probe_req_report = driver_nl80211_probe_req_report,
8896 .deinit_ap = wpa_driver_nl80211_deinit_ap,
8897 .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli,
8898 .resume = wpa_driver_nl80211_resume,
8899 .signal_monitor = nl80211_signal_monitor,
8900 .signal_poll = nl80211_signal_poll,
8901 .send_frame = nl80211_send_frame,
8902 .set_param = nl80211_set_param,
8903 .get_radio_name = nl80211_get_radio_name,
8904 .add_pmkid = nl80211_add_pmkid,
8905 .remove_pmkid = nl80211_remove_pmkid,
8906 .flush_pmkid = nl80211_flush_pmkid,
8907 .set_rekey_info = nl80211_set_rekey_info,
8908 .poll_client = nl80211_poll_client,
8909 .set_p2p_powersave = nl80211_set_p2p_powersave,
8910 .start_dfs_cac = nl80211_start_radar_detection,
8911 .stop_ap = wpa_driver_nl80211_stop_ap,
8912 #ifdef CONFIG_TDLS
8913 .send_tdls_mgmt = nl80211_send_tdls_mgmt,
8914 .tdls_oper = nl80211_tdls_oper,
8915 .tdls_enable_channel_switch = nl80211_tdls_enable_channel_switch,
8916 .tdls_disable_channel_switch = nl80211_tdls_disable_channel_switch,
8917 #endif /* CONFIG_TDLS */
8918 .update_ft_ies = wpa_driver_nl80211_update_ft_ies,
8919 .get_mac_addr = wpa_driver_nl80211_get_macaddr,
8920 .get_survey = wpa_driver_nl80211_get_survey,
8921 .status = wpa_driver_nl80211_status,
8922 .switch_channel = nl80211_switch_channel,
8923 #ifdef ANDROID_P2P
8924 .set_noa = wpa_driver_set_p2p_noa,
8925 .get_noa = wpa_driver_get_p2p_noa,
8926 .set_ap_wps_ie = wpa_driver_set_ap_wps_p2p_ie,
8927 #endif /* ANDROID_P2P */
8928 #ifdef ANDROID
8929 #ifndef ANDROID_LIB_STUB
8930 .driver_cmd = wpa_driver_nl80211_driver_cmd,
8931 #endif /* !ANDROID_LIB_STUB */
8932 #endif /* ANDROID */
8933 .vendor_cmd = nl80211_vendor_cmd,
8934 .set_qos_map = nl80211_set_qos_map,
8935 .set_wowlan = nl80211_set_wowlan,
8936 #ifdef CONFIG_DRIVER_NL80211_QCA
8937 .roaming = nl80211_roaming,
8938 #endif /* CONFIG_DRIVER_NL80211_QCA */
8939 .set_mac_addr = nl80211_set_mac_addr,
8940 #ifdef CONFIG_MESH
8941 .init_mesh = wpa_driver_nl80211_init_mesh,
8942 .join_mesh = wpa_driver_nl80211_join_mesh,
8943 .leave_mesh = wpa_driver_nl80211_leave_mesh,
8944 #endif /* CONFIG_MESH */
8945 .br_add_ip_neigh = wpa_driver_br_add_ip_neigh,
8946 .br_delete_ip_neigh = wpa_driver_br_delete_ip_neigh,
8947 .br_port_set_attr = wpa_driver_br_port_set_attr,
8948 .br_set_net_param = wpa_driver_br_set_net_param,
8949 .add_tx_ts = nl80211_add_ts,
8950 .del_tx_ts = nl80211_del_ts,
8951 #ifdef CONFIG_DRIVER_NL80211_QCA
8952 .do_acs = wpa_driver_do_acs,
8953 .set_band = nl80211_set_band,
8954 .get_pref_freq_list = nl80211_get_pref_freq_list,
8955 .set_prob_oper_freq = nl80211_set_prob_oper_freq,
8956 #endif /* CONFIG_DRIVER_NL80211_QCA */
8957 };
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