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nl80211: Fix send_mlme for SAE external auth
[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 "common/wpa_common.h"
33 #include "l2_packet/l2_packet.h"
34 #include "netlink.h"
35 #include "linux_defines.h"
36 #include "linux_ioctl.h"
37 #include "radiotap.h"
38 #include "radiotap_iter.h"
39 #include "rfkill.h"
40 #include "driver_nl80211.h"
41
42
43 #ifndef NETLINK_CAP_ACK
44 #define NETLINK_CAP_ACK 10
45 #endif /* NETLINK_CAP_ACK */
46 /* support for extack if compilation headers are too old */
47 #ifndef NETLINK_EXT_ACK
48 #define NETLINK_EXT_ACK 11
49 enum nlmsgerr_attrs {
50 NLMSGERR_ATTR_UNUSED,
51 NLMSGERR_ATTR_MSG,
52 NLMSGERR_ATTR_OFFS,
53 NLMSGERR_ATTR_COOKIE,
54
55 __NLMSGERR_ATTR_MAX,
56 NLMSGERR_ATTR_MAX = __NLMSGERR_ATTR_MAX - 1
57 };
58 #endif
59 #ifndef NLM_F_CAPPED
60 #define NLM_F_CAPPED 0x100
61 #endif
62 #ifndef NLM_F_ACK_TLVS
63 #define NLM_F_ACK_TLVS 0x200
64 #endif
65 #ifndef SOL_NETLINK
66 #define SOL_NETLINK 270
67 #endif
68
69
70 #ifdef ANDROID
71 /* system/core/libnl_2 does not include nl_socket_set_nonblocking() */
72 #undef nl_socket_set_nonblocking
73 #define nl_socket_set_nonblocking(h) android_nl_socket_set_nonblocking(h)
74
75 #endif /* ANDROID */
76
77
78 static struct nl_sock * nl_create_handle(struct nl_cb *cb, const char *dbg)
79 {
80 struct nl_sock *handle;
81
82 handle = nl_socket_alloc_cb(cb);
83 if (handle == NULL) {
84 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
85 "callbacks (%s)", dbg);
86 return NULL;
87 }
88
89 if (genl_connect(handle)) {
90 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
91 "netlink (%s)", dbg);
92 nl_socket_free(handle);
93 return NULL;
94 }
95
96 return handle;
97 }
98
99
100 static void nl_destroy_handles(struct nl_sock **handle)
101 {
102 if (*handle == NULL)
103 return;
104 nl_socket_free(*handle);
105 *handle = NULL;
106 }
107
108
109 #if __WORDSIZE == 64
110 #define ELOOP_SOCKET_INVALID (intptr_t) 0x8888888888888889ULL
111 #else
112 #define ELOOP_SOCKET_INVALID (intptr_t) 0x88888889ULL
113 #endif
114
115 static void nl80211_register_eloop_read(struct nl_sock **handle,
116 eloop_sock_handler handler,
117 void *eloop_data, int persist)
118 {
119 /*
120 * libnl uses a pretty small buffer (32 kB that gets converted to 64 kB)
121 * by default. It is possible to hit that limit in some cases where
122 * operations are blocked, e.g., with a burst of Deauthentication frames
123 * to hostapd and STA entry deletion. Try to increase the buffer to make
124 * this less likely to occur.
125 */
126 int err;
127
128 err = nl_socket_set_buffer_size(*handle, 262144, 0);
129 if (err < 0) {
130 wpa_printf(MSG_DEBUG,
131 "nl80211: Could not set nl_socket RX buffer size: %s",
132 nl_geterror(err));
133 /* continue anyway with the default (smaller) buffer */
134 }
135
136 nl_socket_set_nonblocking(*handle);
137 eloop_register_read_sock(nl_socket_get_fd(*handle), handler,
138 eloop_data, *handle);
139 if (!persist)
140 *handle = (void *) (((intptr_t) *handle) ^
141 ELOOP_SOCKET_INVALID);
142 }
143
144
145 static void nl80211_destroy_eloop_handle(struct nl_sock **handle, int persist)
146 {
147 if (!persist)
148 *handle = (void *) (((intptr_t) *handle) ^
149 ELOOP_SOCKET_INVALID);
150 eloop_unregister_read_sock(nl_socket_get_fd(*handle));
151 nl_destroy_handles(handle);
152 }
153
154
155 static void nl80211_global_deinit(void *priv);
156 static void nl80211_check_global(struct nl80211_global *global);
157
158 static void wpa_driver_nl80211_deinit(struct i802_bss *bss);
159 static int wpa_driver_nl80211_set_mode_ibss(struct i802_bss *bss,
160 struct hostapd_freq_params *freq);
161
162 static int
163 wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv,
164 const u8 *set_addr, int first,
165 const char *driver_params);
166 static int nl80211_send_frame_cmd(struct i802_bss *bss,
167 unsigned int freq, unsigned int wait,
168 const u8 *buf, size_t buf_len,
169 int save_cookie,
170 int no_cck, int no_ack, int offchanok,
171 const u16 *csa_offs, size_t csa_offs_len);
172 static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss,
173 int report);
174
175 #define IFIDX_ANY -1
176
177 static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx,
178 int ifidx_reason);
179 static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx,
180 int ifidx_reason);
181 static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx,
182 int ifidx_reason);
183
184 static int nl80211_set_channel(struct i802_bss *bss,
185 struct hostapd_freq_params *freq, int set_chan);
186 static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
187 int ifindex, int disabled);
188
189 static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv,
190 int reset_mode);
191
192 static int i802_set_iface_flags(struct i802_bss *bss, int up);
193 static int nl80211_set_param(void *priv, const char *param);
194 #ifdef CONFIG_MESH
195 static int nl80211_put_mesh_config(struct nl_msg *msg,
196 struct wpa_driver_mesh_bss_params *params);
197 #endif /* CONFIG_MESH */
198 static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
199 u16 reason);
200
201
202 /* Converts nl80211_chan_width to a common format */
203 enum chan_width convert2width(int width)
204 {
205 switch (width) {
206 case NL80211_CHAN_WIDTH_20_NOHT:
207 return CHAN_WIDTH_20_NOHT;
208 case NL80211_CHAN_WIDTH_20:
209 return CHAN_WIDTH_20;
210 case NL80211_CHAN_WIDTH_40:
211 return CHAN_WIDTH_40;
212 case NL80211_CHAN_WIDTH_80:
213 return CHAN_WIDTH_80;
214 case NL80211_CHAN_WIDTH_80P80:
215 return CHAN_WIDTH_80P80;
216 case NL80211_CHAN_WIDTH_160:
217 return CHAN_WIDTH_160;
218 }
219 return CHAN_WIDTH_UNKNOWN;
220 }
221
222
223 int is_ap_interface(enum nl80211_iftype nlmode)
224 {
225 return nlmode == NL80211_IFTYPE_AP ||
226 nlmode == NL80211_IFTYPE_P2P_GO;
227 }
228
229
230 int is_sta_interface(enum nl80211_iftype nlmode)
231 {
232 return nlmode == NL80211_IFTYPE_STATION ||
233 nlmode == NL80211_IFTYPE_P2P_CLIENT;
234 }
235
236
237 static int is_p2p_net_interface(enum nl80211_iftype nlmode)
238 {
239 return nlmode == NL80211_IFTYPE_P2P_CLIENT ||
240 nlmode == NL80211_IFTYPE_P2P_GO;
241 }
242
243
244 struct i802_bss * get_bss_ifindex(struct wpa_driver_nl80211_data *drv,
245 int ifindex)
246 {
247 struct i802_bss *bss;
248
249 for (bss = drv->first_bss; bss; bss = bss->next) {
250 if (bss->ifindex == ifindex)
251 return bss;
252 }
253
254 return NULL;
255 }
256
257
258 static int is_mesh_interface(enum nl80211_iftype nlmode)
259 {
260 return nlmode == NL80211_IFTYPE_MESH_POINT;
261 }
262
263
264 void nl80211_mark_disconnected(struct wpa_driver_nl80211_data *drv)
265 {
266 if (drv->associated)
267 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN);
268 drv->associated = 0;
269 os_memset(drv->bssid, 0, ETH_ALEN);
270 drv->first_bss->freq = 0;
271 }
272
273
274 /* nl80211 code */
275 static int ack_handler(struct nl_msg *msg, void *arg)
276 {
277 int *err = arg;
278 *err = 0;
279 return NL_STOP;
280 }
281
282 static int finish_handler(struct nl_msg *msg, void *arg)
283 {
284 int *ret = arg;
285 *ret = 0;
286 return NL_SKIP;
287 }
288
289 static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err,
290 void *arg)
291 {
292 struct nlmsghdr *nlh = (struct nlmsghdr *) err - 1;
293 int len = nlh->nlmsg_len;
294 struct nlattr *attrs;
295 struct nlattr *tb[NLMSGERR_ATTR_MAX + 1];
296 int *ret = arg;
297 int ack_len = sizeof(*nlh) + sizeof(int) + sizeof(*nlh);
298
299 *ret = err->error;
300
301 if (!(nlh->nlmsg_flags & NLM_F_ACK_TLVS))
302 return NL_SKIP;
303
304 if (!(nlh->nlmsg_flags & NLM_F_CAPPED))
305 ack_len += err->msg.nlmsg_len - sizeof(*nlh);
306
307 if (len <= ack_len)
308 return NL_STOP;
309
310 attrs = (void *) ((unsigned char *) nlh + ack_len);
311 len -= ack_len;
312
313 nla_parse(tb, NLMSGERR_ATTR_MAX, attrs, len, NULL);
314 if (tb[NLMSGERR_ATTR_MSG]) {
315 len = strnlen((char *) nla_data(tb[NLMSGERR_ATTR_MSG]),
316 nla_len(tb[NLMSGERR_ATTR_MSG]));
317 wpa_printf(MSG_ERROR, "nl80211: kernel reports: %*s",
318 len, (char *) nla_data(tb[NLMSGERR_ATTR_MSG]));
319 }
320
321 return NL_SKIP;
322 }
323
324
325 static int no_seq_check(struct nl_msg *msg, void *arg)
326 {
327 return NL_OK;
328 }
329
330
331 static void nl80211_nlmsg_clear(struct nl_msg *msg)
332 {
333 /*
334 * Clear nlmsg data, e.g., to make sure key material is not left in
335 * heap memory for unnecessarily long time.
336 */
337 if (msg) {
338 struct nlmsghdr *hdr = nlmsg_hdr(msg);
339 void *data = nlmsg_data(hdr);
340 /*
341 * This would use nlmsg_datalen() or the older nlmsg_len() if
342 * only libnl were to maintain a stable API.. Neither will work
343 * with all released versions, so just calculate the length
344 * here.
345 */
346 int len = hdr->nlmsg_len - NLMSG_HDRLEN;
347
348 os_memset(data, 0, len);
349 }
350 }
351
352
353 static int send_and_recv(struct nl80211_global *global,
354 struct nl_sock *nl_handle, struct nl_msg *msg,
355 int (*valid_handler)(struct nl_msg *, void *),
356 void *valid_data)
357 {
358 struct nl_cb *cb;
359 int err = -ENOMEM, opt;
360
361 if (!msg)
362 return -ENOMEM;
363
364 cb = nl_cb_clone(global->nl_cb);
365 if (!cb)
366 goto out;
367
368 /* try to set NETLINK_EXT_ACK to 1, ignoring errors */
369 opt = 1;
370 setsockopt(nl_socket_get_fd(nl_handle), SOL_NETLINK,
371 NETLINK_EXT_ACK, &opt, sizeof(opt));
372
373 /* try to set NETLINK_CAP_ACK to 1, ignoring errors */
374 opt = 1;
375 setsockopt(nl_socket_get_fd(nl_handle), SOL_NETLINK,
376 NETLINK_CAP_ACK, &opt, sizeof(opt));
377
378 err = nl_send_auto_complete(nl_handle, msg);
379 if (err < 0) {
380 wpa_printf(MSG_INFO,
381 "nl80211: nl_send_auto_complete() failed: %s",
382 nl_geterror(err));
383 /* Need to convert libnl error code to an errno value. For now,
384 * just hardcode this to EBADF; the real error reason is shown
385 * in that error print above. */
386 err = -EBADF;
387 goto out;
388 }
389
390 err = 1;
391
392 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
393 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
394 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
395
396 if (valid_handler)
397 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM,
398 valid_handler, valid_data);
399
400 while (err > 0) {
401 int res = nl_recvmsgs(nl_handle, cb);
402
403 if (res == -NLE_DUMP_INTR) {
404 /* Most likely one of the nl80211 dump routines hit a
405 * case where internal results changed while the dump
406 * was being sent. The most common known case for this
407 * is scan results fetching while associated were every
408 * received Beacon frame from the AP may end up
409 * incrementing bss_generation. This
410 * NL80211_CMD_GET_SCAN case tries again in the caller;
411 * other cases (of which there are no known common ones)
412 * will stop and return an error. */
413 wpa_printf(MSG_DEBUG, "nl80211: %s; convert to -EAGAIN",
414 nl_geterror(res));
415 err = -EAGAIN;
416 } else if (res < 0) {
417 wpa_printf(MSG_INFO,
418 "nl80211: %s->nl_recvmsgs failed: %d (%s)",
419 __func__, res, nl_geterror(res));
420 }
421 }
422 out:
423 nl_cb_put(cb);
424 if (!valid_handler && valid_data == (void *) -1)
425 nl80211_nlmsg_clear(msg);
426 nlmsg_free(msg);
427 return err;
428 }
429
430
431 int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv,
432 struct nl_msg *msg,
433 int (*valid_handler)(struct nl_msg *, void *),
434 void *valid_data)
435 {
436 return send_and_recv(drv->global, drv->global->nl, msg,
437 valid_handler, valid_data);
438 }
439
440
441 struct family_data {
442 const char *group;
443 int id;
444 };
445
446
447 static int family_handler(struct nl_msg *msg, void *arg)
448 {
449 struct family_data *res = arg;
450 struct nlattr *tb[CTRL_ATTR_MAX + 1];
451 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
452 struct nlattr *mcgrp;
453 int i;
454
455 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
456 genlmsg_attrlen(gnlh, 0), NULL);
457 if (!tb[CTRL_ATTR_MCAST_GROUPS])
458 return NL_SKIP;
459
460 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) {
461 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1];
462 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp),
463 nla_len(mcgrp), NULL);
464 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] ||
465 !tb2[CTRL_ATTR_MCAST_GRP_ID] ||
466 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]),
467 res->group,
468 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0)
469 continue;
470 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]);
471 break;
472 };
473
474 return NL_SKIP;
475 }
476
477
478 static int nl_get_multicast_id(struct nl80211_global *global,
479 const char *family, const char *group)
480 {
481 struct nl_msg *msg;
482 int ret;
483 struct family_data res = { group, -ENOENT };
484
485 msg = nlmsg_alloc();
486 if (!msg)
487 return -ENOMEM;
488 if (!genlmsg_put(msg, 0, 0, genl_ctrl_resolve(global->nl, "nlctrl"),
489 0, 0, CTRL_CMD_GETFAMILY, 0) ||
490 nla_put_string(msg, CTRL_ATTR_FAMILY_NAME, family)) {
491 nlmsg_free(msg);
492 return -1;
493 }
494
495 ret = send_and_recv(global, global->nl, msg, family_handler, &res);
496 if (ret == 0)
497 ret = res.id;
498 return ret;
499 }
500
501
502 void * nl80211_cmd(struct wpa_driver_nl80211_data *drv,
503 struct nl_msg *msg, int flags, uint8_t cmd)
504 {
505 if (TEST_FAIL())
506 return NULL;
507 return genlmsg_put(msg, 0, 0, drv->global->nl80211_id,
508 0, flags, cmd, 0);
509 }
510
511
512 static int nl80211_set_iface_id(struct nl_msg *msg, struct i802_bss *bss)
513 {
514 if (bss->wdev_id_set)
515 return nla_put_u64(msg, NL80211_ATTR_WDEV, bss->wdev_id);
516 return nla_put_u32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
517 }
518
519
520 struct nl_msg * nl80211_cmd_msg(struct i802_bss *bss, int flags, uint8_t cmd)
521 {
522 struct nl_msg *msg;
523
524 msg = nlmsg_alloc();
525 if (!msg)
526 return NULL;
527
528 if (!nl80211_cmd(bss->drv, msg, flags, cmd) ||
529 nl80211_set_iface_id(msg, bss) < 0) {
530 nlmsg_free(msg);
531 return NULL;
532 }
533
534 return msg;
535 }
536
537
538 static struct nl_msg *
539 nl80211_ifindex_msg(struct wpa_driver_nl80211_data *drv, int ifindex,
540 int flags, uint8_t cmd)
541 {
542 struct nl_msg *msg;
543
544 msg = nlmsg_alloc();
545 if (!msg)
546 return NULL;
547
548 if (!nl80211_cmd(drv, msg, flags, cmd) ||
549 nla_put_u32(msg, NL80211_ATTR_IFINDEX, ifindex)) {
550 nlmsg_free(msg);
551 return NULL;
552 }
553
554 return msg;
555 }
556
557
558 struct nl_msg * nl80211_drv_msg(struct wpa_driver_nl80211_data *drv, int flags,
559 uint8_t cmd)
560 {
561 return nl80211_ifindex_msg(drv, drv->ifindex, flags, cmd);
562 }
563
564
565 struct nl_msg * nl80211_bss_msg(struct i802_bss *bss, int flags, uint8_t cmd)
566 {
567 return nl80211_ifindex_msg(bss->drv, bss->ifindex, flags, cmd);
568 }
569
570
571 struct wiphy_idx_data {
572 int wiphy_idx;
573 enum nl80211_iftype nlmode;
574 u8 *macaddr;
575 };
576
577
578 static int netdev_info_handler(struct nl_msg *msg, void *arg)
579 {
580 struct nlattr *tb[NL80211_ATTR_MAX + 1];
581 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
582 struct wiphy_idx_data *info = arg;
583
584 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
585 genlmsg_attrlen(gnlh, 0), NULL);
586
587 if (tb[NL80211_ATTR_WIPHY])
588 info->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
589
590 if (tb[NL80211_ATTR_IFTYPE])
591 info->nlmode = nla_get_u32(tb[NL80211_ATTR_IFTYPE]);
592
593 if (tb[NL80211_ATTR_MAC] && info->macaddr)
594 os_memcpy(info->macaddr, nla_data(tb[NL80211_ATTR_MAC]),
595 ETH_ALEN);
596
597 return NL_SKIP;
598 }
599
600
601 int nl80211_get_wiphy_index(struct i802_bss *bss)
602 {
603 struct nl_msg *msg;
604 struct wiphy_idx_data data = {
605 .wiphy_idx = -1,
606 .macaddr = NULL,
607 };
608
609 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_GET_INTERFACE)))
610 return -1;
611
612 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0)
613 return data.wiphy_idx;
614 return -1;
615 }
616
617
618 static enum nl80211_iftype nl80211_get_ifmode(struct i802_bss *bss)
619 {
620 struct nl_msg *msg;
621 struct wiphy_idx_data data = {
622 .nlmode = NL80211_IFTYPE_UNSPECIFIED,
623 .macaddr = NULL,
624 };
625
626 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_GET_INTERFACE)))
627 return NL80211_IFTYPE_UNSPECIFIED;
628
629 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0)
630 return data.nlmode;
631 return NL80211_IFTYPE_UNSPECIFIED;
632 }
633
634
635 static int nl80211_get_macaddr(struct i802_bss *bss)
636 {
637 struct nl_msg *msg;
638 struct wiphy_idx_data data = {
639 .macaddr = bss->addr,
640 };
641
642 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_GET_INTERFACE)))
643 return -1;
644
645 return send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data);
646 }
647
648
649 static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv,
650 struct nl80211_wiphy_data *w)
651 {
652 struct nl_msg *msg;
653 int ret;
654
655 msg = nlmsg_alloc();
656 if (!msg)
657 return -1;
658
659 if (!nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_BEACONS) ||
660 nla_put_u32(msg, NL80211_ATTR_WIPHY, w->wiphy_idx)) {
661 nlmsg_free(msg);
662 return -1;
663 }
664
665 ret = send_and_recv(drv->global, w->nl_beacons, msg, NULL, NULL);
666 if (ret) {
667 wpa_printf(MSG_DEBUG, "nl80211: Register beacons command "
668 "failed: ret=%d (%s)",
669 ret, strerror(-ret));
670 }
671 return ret;
672 }
673
674
675 static void nl80211_recv_beacons(int sock, void *eloop_ctx, void *handle)
676 {
677 struct nl80211_wiphy_data *w = eloop_ctx;
678 int res;
679
680 wpa_printf(MSG_EXCESSIVE, "nl80211: Beacon event message available");
681
682 res = nl_recvmsgs(handle, w->nl_cb);
683 if (res < 0) {
684 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d",
685 __func__, res);
686 }
687 }
688
689
690 static int process_beacon_event(struct nl_msg *msg, void *arg)
691 {
692 struct nl80211_wiphy_data *w = arg;
693 struct wpa_driver_nl80211_data *drv;
694 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
695 struct nlattr *tb[NL80211_ATTR_MAX + 1];
696 union wpa_event_data event;
697
698 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
699 genlmsg_attrlen(gnlh, 0), NULL);
700
701 if (gnlh->cmd != NL80211_CMD_FRAME) {
702 wpa_printf(MSG_DEBUG, "nl80211: Unexpected beacon event? (%d)",
703 gnlh->cmd);
704 return NL_SKIP;
705 }
706
707 if (!tb[NL80211_ATTR_FRAME])
708 return NL_SKIP;
709
710 dl_list_for_each(drv, &w->drvs, struct wpa_driver_nl80211_data,
711 wiphy_list) {
712 os_memset(&event, 0, sizeof(event));
713 event.rx_mgmt.frame = nla_data(tb[NL80211_ATTR_FRAME]);
714 event.rx_mgmt.frame_len = nla_len(tb[NL80211_ATTR_FRAME]);
715 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
716 }
717
718 return NL_SKIP;
719 }
720
721
722 static struct nl80211_wiphy_data *
723 nl80211_get_wiphy_data_ap(struct i802_bss *bss)
724 {
725 static DEFINE_DL_LIST(nl80211_wiphys);
726 struct nl80211_wiphy_data *w;
727 int wiphy_idx, found = 0;
728 struct i802_bss *tmp_bss;
729 u8 channel;
730
731 if (bss->wiphy_data != NULL)
732 return bss->wiphy_data;
733
734 wiphy_idx = nl80211_get_wiphy_index(bss);
735
736 dl_list_for_each(w, &nl80211_wiphys, struct nl80211_wiphy_data, list) {
737 if (w->wiphy_idx == wiphy_idx)
738 goto add;
739 }
740
741 /* alloc new one */
742 w = os_zalloc(sizeof(*w));
743 if (w == NULL)
744 return NULL;
745 w->wiphy_idx = wiphy_idx;
746 dl_list_init(&w->bsss);
747 dl_list_init(&w->drvs);
748
749 /* Beacon frames not supported in IEEE 802.11ad */
750 if (ieee80211_freq_to_chan(bss->freq, &channel) !=
751 HOSTAPD_MODE_IEEE80211AD) {
752 w->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
753 if (!w->nl_cb) {
754 os_free(w);
755 return NULL;
756 }
757 nl_cb_set(w->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
758 no_seq_check, NULL);
759 nl_cb_set(w->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
760 process_beacon_event, w);
761
762 w->nl_beacons = nl_create_handle(bss->drv->global->nl_cb,
763 "wiphy beacons");
764 if (w->nl_beacons == NULL) {
765 os_free(w);
766 return NULL;
767 }
768
769 if (nl80211_register_beacons(bss->drv, w)) {
770 nl_destroy_handles(&w->nl_beacons);
771 os_free(w);
772 return NULL;
773 }
774
775 nl80211_register_eloop_read(&w->nl_beacons,
776 nl80211_recv_beacons, w, 0);
777 }
778
779 dl_list_add(&nl80211_wiphys, &w->list);
780
781 add:
782 /* drv entry for this bss already there? */
783 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) {
784 if (tmp_bss->drv == bss->drv) {
785 found = 1;
786 break;
787 }
788 }
789 /* if not add it */
790 if (!found)
791 dl_list_add(&w->drvs, &bss->drv->wiphy_list);
792
793 dl_list_add(&w->bsss, &bss->wiphy_list);
794 bss->wiphy_data = w;
795 return w;
796 }
797
798
799 static void nl80211_put_wiphy_data_ap(struct i802_bss *bss)
800 {
801 struct nl80211_wiphy_data *w = bss->wiphy_data;
802 struct i802_bss *tmp_bss;
803 int found = 0;
804
805 if (w == NULL)
806 return;
807 bss->wiphy_data = NULL;
808 dl_list_del(&bss->wiphy_list);
809
810 /* still any for this drv present? */
811 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) {
812 if (tmp_bss->drv == bss->drv) {
813 found = 1;
814 break;
815 }
816 }
817 /* if not remove it */
818 if (!found)
819 dl_list_del(&bss->drv->wiphy_list);
820
821 if (!dl_list_empty(&w->bsss))
822 return;
823
824 if (w->nl_beacons)
825 nl80211_destroy_eloop_handle(&w->nl_beacons, 0);
826
827 nl_cb_put(w->nl_cb);
828 dl_list_del(&w->list);
829 os_free(w);
830 }
831
832
833 static unsigned int nl80211_get_ifindex(void *priv)
834 {
835 struct i802_bss *bss = priv;
836 struct wpa_driver_nl80211_data *drv = bss->drv;
837
838 return drv->ifindex;
839 }
840
841
842 static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid)
843 {
844 struct i802_bss *bss = priv;
845 struct wpa_driver_nl80211_data *drv = bss->drv;
846 if (!drv->associated)
847 return -1;
848 os_memcpy(bssid, drv->bssid, ETH_ALEN);
849 return 0;
850 }
851
852
853 static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid)
854 {
855 struct i802_bss *bss = priv;
856 struct wpa_driver_nl80211_data *drv = bss->drv;
857 if (!drv->associated)
858 return -1;
859 os_memcpy(ssid, drv->ssid, drv->ssid_len);
860 return drv->ssid_len;
861 }
862
863
864 static void wpa_driver_nl80211_event_newlink(
865 struct nl80211_global *global, struct wpa_driver_nl80211_data *drv,
866 int ifindex, const char *ifname)
867 {
868 union wpa_event_data event;
869
870 if (drv && os_strcmp(drv->first_bss->ifname, ifname) == 0) {
871 if (if_nametoindex(drv->first_bss->ifname) == 0) {
872 wpa_printf(MSG_DEBUG, "nl80211: Interface %s does not exist - ignore RTM_NEWLINK",
873 drv->first_bss->ifname);
874 return;
875 }
876 if (!drv->if_removed)
877 return;
878 wpa_printf(MSG_DEBUG, "nl80211: Mark if_removed=0 for %s based on RTM_NEWLINK event",
879 drv->first_bss->ifname);
880 drv->if_removed = 0;
881 }
882
883 os_memset(&event, 0, sizeof(event));
884 event.interface_status.ifindex = ifindex;
885 os_strlcpy(event.interface_status.ifname, ifname,
886 sizeof(event.interface_status.ifname));
887 event.interface_status.ievent = EVENT_INTERFACE_ADDED;
888 if (drv)
889 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event);
890 else
891 wpa_supplicant_event_global(global->ctx, EVENT_INTERFACE_STATUS,
892 &event);
893 }
894
895
896 static void wpa_driver_nl80211_event_dellink(
897 struct nl80211_global *global, struct wpa_driver_nl80211_data *drv,
898 int ifindex, const char *ifname)
899 {
900 union wpa_event_data event;
901
902 if (drv && os_strcmp(drv->first_bss->ifname, ifname) == 0) {
903 if (drv->if_removed) {
904 wpa_printf(MSG_DEBUG, "nl80211: if_removed already set - ignore RTM_DELLINK event for %s",
905 ifname);
906 return;
907 }
908 wpa_printf(MSG_DEBUG, "RTM_DELLINK: Interface '%s' removed - mark if_removed=1",
909 ifname);
910 drv->if_removed = 1;
911 } else {
912 wpa_printf(MSG_DEBUG, "RTM_DELLINK: Interface '%s' removed",
913 ifname);
914 }
915
916 os_memset(&event, 0, sizeof(event));
917 event.interface_status.ifindex = ifindex;
918 os_strlcpy(event.interface_status.ifname, ifname,
919 sizeof(event.interface_status.ifname));
920 event.interface_status.ievent = EVENT_INTERFACE_REMOVED;
921 if (drv)
922 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event);
923 else
924 wpa_supplicant_event_global(global->ctx, EVENT_INTERFACE_STATUS,
925 &event);
926 }
927
928
929 static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv,
930 u8 *buf, size_t len)
931 {
932 int attrlen, rta_len;
933 struct rtattr *attr;
934
935 attrlen = len;
936 attr = (struct rtattr *) buf;
937
938 rta_len = RTA_ALIGN(sizeof(struct rtattr));
939 while (RTA_OK(attr, attrlen)) {
940 if (attr->rta_type == IFLA_IFNAME) {
941 if (os_strcmp(((char *) attr) + rta_len,
942 drv->first_bss->ifname) == 0)
943 return 1;
944 else
945 break;
946 }
947 attr = RTA_NEXT(attr, attrlen);
948 }
949
950 return 0;
951 }
952
953
954 static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv,
955 int ifindex, u8 *buf, size_t len)
956 {
957 if (drv->ifindex == ifindex)
958 return 1;
959
960 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) {
961 nl80211_check_global(drv->global);
962 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed "
963 "interface");
964 if (wpa_driver_nl80211_finish_drv_init(drv, NULL, 0, NULL) < 0)
965 return -1;
966 return 1;
967 }
968
969 return 0;
970 }
971
972
973 static struct wpa_driver_nl80211_data *
974 nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len,
975 int *init_failed)
976 {
977 struct wpa_driver_nl80211_data *drv;
978 int res;
979
980 if (init_failed)
981 *init_failed = 0;
982 dl_list_for_each(drv, &global->interfaces,
983 struct wpa_driver_nl80211_data, list) {
984 res = wpa_driver_nl80211_own_ifindex(drv, idx, buf, len);
985 if (res < 0) {
986 wpa_printf(MSG_DEBUG,
987 "nl80211: Found matching own interface, but failed to complete reinitialization");
988 if (init_failed)
989 *init_failed = 1;
990 return drv;
991 }
992 if (res > 0 || have_ifidx(drv, idx, IFIDX_ANY))
993 return drv;
994 }
995 return NULL;
996 }
997
998
999 static void nl80211_refresh_mac(struct wpa_driver_nl80211_data *drv,
1000 int ifindex, int notify)
1001 {
1002 struct i802_bss *bss;
1003 u8 addr[ETH_ALEN];
1004
1005 bss = get_bss_ifindex(drv, ifindex);
1006 if (bss &&
1007 linux_get_ifhwaddr(drv->global->ioctl_sock,
1008 bss->ifname, addr) < 0) {
1009 wpa_printf(MSG_DEBUG,
1010 "nl80211: %s: failed to re-read MAC address",
1011 bss->ifname);
1012 } else if (bss && os_memcmp(addr, bss->addr, ETH_ALEN) != 0) {
1013 wpa_printf(MSG_DEBUG,
1014 "nl80211: Own MAC address on ifindex %d (%s) changed from "
1015 MACSTR " to " MACSTR,
1016 ifindex, bss->ifname,
1017 MAC2STR(bss->addr), MAC2STR(addr));
1018 os_memcpy(bss->addr, addr, ETH_ALEN);
1019 if (notify)
1020 wpa_supplicant_event(drv->ctx,
1021 EVENT_INTERFACE_MAC_CHANGED, NULL);
1022 }
1023 }
1024
1025
1026 static void wpa_driver_nl80211_event_rtm_newlink(void *ctx,
1027 struct ifinfomsg *ifi,
1028 u8 *buf, size_t len)
1029 {
1030 struct nl80211_global *global = ctx;
1031 struct wpa_driver_nl80211_data *drv;
1032 int attrlen;
1033 struct rtattr *attr;
1034 u32 brid = 0;
1035 char namebuf[IFNAMSIZ];
1036 char ifname[IFNAMSIZ + 1];
1037 char extra[100], *pos, *end;
1038 int init_failed;
1039
1040 extra[0] = '\0';
1041 pos = extra;
1042 end = pos + sizeof(extra);
1043 ifname[0] = '\0';
1044
1045 attrlen = len;
1046 attr = (struct rtattr *) buf;
1047 while (RTA_OK(attr, attrlen)) {
1048 switch (attr->rta_type) {
1049 case IFLA_IFNAME:
1050 if (RTA_PAYLOAD(attr) >= IFNAMSIZ)
1051 break;
1052 os_memcpy(ifname, RTA_DATA(attr), RTA_PAYLOAD(attr));
1053 ifname[RTA_PAYLOAD(attr)] = '\0';
1054 break;
1055 case IFLA_MASTER:
1056 brid = nla_get_u32((struct nlattr *) attr);
1057 pos += os_snprintf(pos, end - pos, " master=%u", brid);
1058 break;
1059 case IFLA_WIRELESS:
1060 pos += os_snprintf(pos, end - pos, " wext");
1061 break;
1062 case IFLA_OPERSTATE:
1063 pos += os_snprintf(pos, end - pos, " operstate=%u",
1064 nla_get_u32((struct nlattr *) attr));
1065 break;
1066 case IFLA_LINKMODE:
1067 pos += os_snprintf(pos, end - pos, " linkmode=%u",
1068 nla_get_u32((struct nlattr *) attr));
1069 break;
1070 }
1071 attr = RTA_NEXT(attr, attrlen);
1072 }
1073 extra[sizeof(extra) - 1] = '\0';
1074
1075 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: ifi_index=%d ifname=%s%s ifi_family=%d ifi_flags=0x%x (%s%s%s%s)",
1076 ifi->ifi_index, ifname, extra, ifi->ifi_family,
1077 ifi->ifi_flags,
1078 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "",
1079 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "",
1080 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "",
1081 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : "");
1082
1083 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len, &init_failed);
1084 if (!drv)
1085 goto event_newlink;
1086 if (init_failed)
1087 return; /* do not update interface state */
1088
1089 if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) {
1090 namebuf[0] = '\0';
1091 if (if_indextoname(ifi->ifi_index, namebuf) &&
1092 linux_iface_up(drv->global->ioctl_sock, namebuf) > 0) {
1093 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down "
1094 "event since interface %s is up", namebuf);
1095 drv->ignore_if_down_event = 0;
1096 /* Re-read MAC address as it may have changed */
1097 nl80211_refresh_mac(drv, ifi->ifi_index, 1);
1098 return;
1099 }
1100 wpa_printf(MSG_DEBUG, "nl80211: Interface down (%s/%s)",
1101 namebuf, ifname);
1102 if (os_strcmp(drv->first_bss->ifname, ifname) != 0) {
1103 wpa_printf(MSG_DEBUG,
1104 "nl80211: Not the main interface (%s) - do not indicate interface down",
1105 drv->first_bss->ifname);
1106 } else if (drv->ignore_if_down_event) {
1107 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down "
1108 "event generated by mode change");
1109 drv->ignore_if_down_event = 0;
1110 } else {
1111 drv->if_disabled = 1;
1112 wpa_supplicant_event(drv->ctx,
1113 EVENT_INTERFACE_DISABLED, NULL);
1114
1115 /*
1116 * Try to get drv again, since it may be removed as
1117 * part of the EVENT_INTERFACE_DISABLED handling for
1118 * dynamic interfaces
1119 */
1120 drv = nl80211_find_drv(global, ifi->ifi_index,
1121 buf, len, NULL);
1122 if (!drv)
1123 return;
1124 }
1125 }
1126
1127 if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) {
1128 namebuf[0] = '\0';
1129 if (if_indextoname(ifi->ifi_index, namebuf) &&
1130 linux_iface_up(drv->global->ioctl_sock, namebuf) == 0) {
1131 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
1132 "event since interface %s is down",
1133 namebuf);
1134 return;
1135 }
1136 wpa_printf(MSG_DEBUG, "nl80211: Interface up (%s/%s)",
1137 namebuf, ifname);
1138 if (os_strcmp(drv->first_bss->ifname, ifname) != 0) {
1139 wpa_printf(MSG_DEBUG,
1140 "nl80211: Not the main interface (%s) - do not indicate interface up",
1141 drv->first_bss->ifname);
1142 } else if (if_nametoindex(drv->first_bss->ifname) == 0) {
1143 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
1144 "event since interface %s does not exist",
1145 drv->first_bss->ifname);
1146 } else if (drv->if_removed) {
1147 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
1148 "event since interface %s is marked "
1149 "removed", drv->first_bss->ifname);
1150 } else {
1151 /* Re-read MAC address as it may have changed */
1152 nl80211_refresh_mac(drv, ifi->ifi_index, 0);
1153
1154 drv->if_disabled = 0;
1155 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED,
1156 NULL);
1157 }
1158 }
1159
1160 /*
1161 * Some drivers send the association event before the operup event--in
1162 * this case, lifting operstate in wpa_driver_nl80211_set_operstate()
1163 * fails. This will hit us when wpa_supplicant does not need to do
1164 * IEEE 802.1X authentication
1165 */
1166 if (drv->operstate == 1 &&
1167 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP &&
1168 !(ifi->ifi_flags & IFF_RUNNING)) {
1169 wpa_printf(MSG_DEBUG, "nl80211: Set IF_OPER_UP again based on ifi_flags and expected operstate");
1170 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex,
1171 -1, IF_OPER_UP);
1172 }
1173
1174 event_newlink:
1175 if (ifname[0])
1176 wpa_driver_nl80211_event_newlink(global, drv, ifi->ifi_index,
1177 ifname);
1178
1179 if (ifi->ifi_family == AF_BRIDGE && brid && drv) {
1180 struct i802_bss *bss;
1181
1182 /* device has been added to bridge */
1183 if (!if_indextoname(brid, namebuf)) {
1184 wpa_printf(MSG_DEBUG,
1185 "nl80211: Could not find bridge ifname for ifindex %u",
1186 brid);
1187 return;
1188 }
1189 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s",
1190 brid, namebuf);
1191 add_ifidx(drv, brid, ifi->ifi_index);
1192
1193 for (bss = drv->first_bss; bss; bss = bss->next) {
1194 if (os_strcmp(ifname, bss->ifname) == 0) {
1195 os_strlcpy(bss->brname, namebuf, IFNAMSIZ);
1196 break;
1197 }
1198 }
1199 }
1200 }
1201
1202
1203 static void wpa_driver_nl80211_event_rtm_dellink(void *ctx,
1204 struct ifinfomsg *ifi,
1205 u8 *buf, size_t len)
1206 {
1207 struct nl80211_global *global = ctx;
1208 struct wpa_driver_nl80211_data *drv;
1209 int attrlen;
1210 struct rtattr *attr;
1211 u32 brid = 0;
1212 char ifname[IFNAMSIZ + 1];
1213 char extra[100], *pos, *end;
1214
1215 extra[0] = '\0';
1216 pos = extra;
1217 end = pos + sizeof(extra);
1218 ifname[0] = '\0';
1219
1220 attrlen = len;
1221 attr = (struct rtattr *) buf;
1222 while (RTA_OK(attr, attrlen)) {
1223 switch (attr->rta_type) {
1224 case IFLA_IFNAME:
1225 if (RTA_PAYLOAD(attr) >= IFNAMSIZ)
1226 break;
1227 os_memcpy(ifname, RTA_DATA(attr), RTA_PAYLOAD(attr));
1228 ifname[RTA_PAYLOAD(attr)] = '\0';
1229 break;
1230 case IFLA_MASTER:
1231 brid = nla_get_u32((struct nlattr *) attr);
1232 pos += os_snprintf(pos, end - pos, " master=%u", brid);
1233 break;
1234 case IFLA_OPERSTATE:
1235 pos += os_snprintf(pos, end - pos, " operstate=%u",
1236 nla_get_u32((struct nlattr *) attr));
1237 break;
1238 case IFLA_LINKMODE:
1239 pos += os_snprintf(pos, end - pos, " linkmode=%u",
1240 nla_get_u32((struct nlattr *) attr));
1241 break;
1242 }
1243 attr = RTA_NEXT(attr, attrlen);
1244 }
1245 extra[sizeof(extra) - 1] = '\0';
1246
1247 wpa_printf(MSG_DEBUG, "RTM_DELLINK: ifi_index=%d ifname=%s%s ifi_family=%d ifi_flags=0x%x (%s%s%s%s)",
1248 ifi->ifi_index, ifname, extra, ifi->ifi_family,
1249 ifi->ifi_flags,
1250 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "",
1251 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "",
1252 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "",
1253 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : "");
1254
1255 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len, NULL);
1256
1257 if (ifi->ifi_family == AF_BRIDGE && brid && drv) {
1258 /* device has been removed from bridge */
1259 char namebuf[IFNAMSIZ];
1260
1261 if (!if_indextoname(brid, namebuf)) {
1262 wpa_printf(MSG_DEBUG,
1263 "nl80211: Could not find bridge ifname for ifindex %u",
1264 brid);
1265 } else {
1266 wpa_printf(MSG_DEBUG,
1267 "nl80211: Remove ifindex %u for bridge %s",
1268 brid, namebuf);
1269 }
1270 del_ifidx(drv, brid, ifi->ifi_index);
1271 }
1272
1273 if (ifi->ifi_family != AF_BRIDGE || !brid)
1274 wpa_driver_nl80211_event_dellink(global, drv, ifi->ifi_index,
1275 ifname);
1276 }
1277
1278
1279 struct nl80211_get_assoc_freq_arg {
1280 struct wpa_driver_nl80211_data *drv;
1281 unsigned int assoc_freq;
1282 unsigned int ibss_freq;
1283 u8 assoc_bssid[ETH_ALEN];
1284 u8 assoc_ssid[SSID_MAX_LEN];
1285 u8 assoc_ssid_len;
1286 };
1287
1288 static int nl80211_get_assoc_freq_handler(struct nl_msg *msg, void *arg)
1289 {
1290 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1291 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1292 struct nlattr *bss[NL80211_BSS_MAX + 1];
1293 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
1294 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC },
1295 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 },
1296 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC },
1297 [NL80211_BSS_STATUS] = { .type = NLA_U32 },
1298 };
1299 struct nl80211_get_assoc_freq_arg *ctx = arg;
1300 enum nl80211_bss_status status;
1301
1302 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1303 genlmsg_attrlen(gnlh, 0), NULL);
1304 if (!tb[NL80211_ATTR_BSS] ||
1305 nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS],
1306 bss_policy) ||
1307 !bss[NL80211_BSS_STATUS])
1308 return NL_SKIP;
1309
1310 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
1311 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
1312 bss[NL80211_BSS_FREQUENCY]) {
1313 ctx->assoc_freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
1314 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz",
1315 ctx->assoc_freq);
1316 }
1317 if (status == NL80211_BSS_STATUS_IBSS_JOINED &&
1318 bss[NL80211_BSS_FREQUENCY]) {
1319 ctx->ibss_freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
1320 wpa_printf(MSG_DEBUG, "nl80211: IBSS-joined on %u MHz",
1321 ctx->ibss_freq);
1322 }
1323 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
1324 bss[NL80211_BSS_BSSID]) {
1325 os_memcpy(ctx->assoc_bssid,
1326 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN);
1327 wpa_printf(MSG_DEBUG, "nl80211: Associated with "
1328 MACSTR, MAC2STR(ctx->assoc_bssid));
1329 }
1330
1331 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
1332 bss[NL80211_BSS_INFORMATION_ELEMENTS]) {
1333 const u8 *ie, *ssid;
1334 size_t ie_len;
1335
1336 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
1337 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
1338 ssid = get_ie(ie, ie_len, WLAN_EID_SSID);
1339 if (ssid && ssid[1] > 0 && ssid[1] <= SSID_MAX_LEN) {
1340 ctx->assoc_ssid_len = ssid[1];
1341 os_memcpy(ctx->assoc_ssid, ssid + 2, ssid[1]);
1342 }
1343 }
1344
1345 return NL_SKIP;
1346 }
1347
1348
1349 int nl80211_get_assoc_ssid(struct wpa_driver_nl80211_data *drv, u8 *ssid)
1350 {
1351 struct nl_msg *msg;
1352 int ret;
1353 struct nl80211_get_assoc_freq_arg arg;
1354 int count = 0;
1355
1356 try_again:
1357 msg = nl80211_drv_msg(drv, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
1358 os_memset(&arg, 0, sizeof(arg));
1359 arg.drv = drv;
1360 ret = send_and_recv_msgs(drv, msg, nl80211_get_assoc_freq_handler,
1361 &arg);
1362 if (ret == -EAGAIN) {
1363 count++;
1364 if (count >= 10) {
1365 wpa_printf(MSG_INFO,
1366 "nl80211: Failed to receive consistent scan result dump for get_assoc_ssid");
1367 } else {
1368 wpa_printf(MSG_DEBUG,
1369 "nl80211: Failed to receive consistent scan result dump for get_assoc_ssid - try again");
1370 goto try_again;
1371 }
1372 }
1373 if (ret == 0) {
1374 os_memcpy(ssid, arg.assoc_ssid, arg.assoc_ssid_len);
1375 return arg.assoc_ssid_len;
1376 }
1377 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d (%s)",
1378 ret, strerror(-ret));
1379 return ret;
1380 }
1381
1382
1383 unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv)
1384 {
1385 struct nl_msg *msg;
1386 int ret;
1387 struct nl80211_get_assoc_freq_arg arg;
1388 int count = 0;
1389
1390 try_again:
1391 msg = nl80211_drv_msg(drv, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
1392 os_memset(&arg, 0, sizeof(arg));
1393 arg.drv = drv;
1394 ret = send_and_recv_msgs(drv, msg, nl80211_get_assoc_freq_handler,
1395 &arg);
1396 if (ret == -EAGAIN) {
1397 count++;
1398 if (count >= 10) {
1399 wpa_printf(MSG_INFO,
1400 "nl80211: Failed to receive consistent scan result dump for get_assoc_freq");
1401 } else {
1402 wpa_printf(MSG_DEBUG,
1403 "nl80211: Failed to receive consistent scan result dump for get_assoc_freq - try again");
1404 goto try_again;
1405 }
1406 }
1407 if (ret == 0) {
1408 unsigned int freq = drv->nlmode == NL80211_IFTYPE_ADHOC ?
1409 arg.ibss_freq : arg.assoc_freq;
1410 wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the "
1411 "associated BSS from scan results: %u MHz", freq);
1412 if (freq)
1413 drv->assoc_freq = freq;
1414 return drv->assoc_freq;
1415 }
1416 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
1417 "(%s)", ret, strerror(-ret));
1418 return drv->assoc_freq;
1419 }
1420
1421
1422 static int get_link_signal(struct nl_msg *msg, void *arg)
1423 {
1424 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1425 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1426 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1];
1427 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = {
1428 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 },
1429 [NL80211_STA_INFO_SIGNAL_AVG] = { .type = NLA_U8 },
1430 [NL80211_STA_INFO_BEACON_SIGNAL_AVG] = { .type = NLA_U8 },
1431 };
1432 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1];
1433 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = {
1434 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 },
1435 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 },
1436 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG },
1437 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG },
1438 };
1439 struct wpa_signal_info *sig_change = arg;
1440
1441 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1442 genlmsg_attrlen(gnlh, 0), NULL);
1443 if (!tb[NL80211_ATTR_STA_INFO] ||
1444 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX,
1445 tb[NL80211_ATTR_STA_INFO], policy))
1446 return NL_SKIP;
1447 if (!sinfo[NL80211_STA_INFO_SIGNAL])
1448 return NL_SKIP;
1449
1450 sig_change->current_signal =
1451 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]);
1452
1453 if (sinfo[NL80211_STA_INFO_SIGNAL_AVG])
1454 sig_change->avg_signal =
1455 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL_AVG]);
1456 else
1457 sig_change->avg_signal = 0;
1458
1459 if (sinfo[NL80211_STA_INFO_BEACON_SIGNAL_AVG])
1460 sig_change->avg_beacon_signal =
1461 (s8)
1462 nla_get_u8(sinfo[NL80211_STA_INFO_BEACON_SIGNAL_AVG]);
1463 else
1464 sig_change->avg_beacon_signal = 0;
1465
1466 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) {
1467 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX,
1468 sinfo[NL80211_STA_INFO_TX_BITRATE],
1469 rate_policy)) {
1470 sig_change->current_txrate = 0;
1471 } else {
1472 if (rinfo[NL80211_RATE_INFO_BITRATE]) {
1473 sig_change->current_txrate =
1474 nla_get_u16(rinfo[
1475 NL80211_RATE_INFO_BITRATE]) * 100;
1476 }
1477 }
1478 }
1479
1480 return NL_SKIP;
1481 }
1482
1483
1484 int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv,
1485 struct wpa_signal_info *sig)
1486 {
1487 struct nl_msg *msg;
1488
1489 sig->current_signal = -WPA_INVALID_NOISE;
1490 sig->current_txrate = 0;
1491
1492 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_GET_STATION)) ||
1493 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid)) {
1494 nlmsg_free(msg);
1495 return -ENOBUFS;
1496 }
1497
1498 return send_and_recv_msgs(drv, msg, get_link_signal, sig);
1499 }
1500
1501
1502 static int get_link_noise(struct nl_msg *msg, void *arg)
1503 {
1504 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1505 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1506 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
1507 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
1508 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
1509 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
1510 };
1511 struct wpa_signal_info *sig_change = arg;
1512
1513 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1514 genlmsg_attrlen(gnlh, 0), NULL);
1515
1516 if (!tb[NL80211_ATTR_SURVEY_INFO]) {
1517 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!");
1518 return NL_SKIP;
1519 }
1520
1521 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
1522 tb[NL80211_ATTR_SURVEY_INFO],
1523 survey_policy)) {
1524 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested "
1525 "attributes!");
1526 return NL_SKIP;
1527 }
1528
1529 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY])
1530 return NL_SKIP;
1531
1532 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) !=
1533 sig_change->frequency)
1534 return NL_SKIP;
1535
1536 if (!sinfo[NL80211_SURVEY_INFO_NOISE])
1537 return NL_SKIP;
1538
1539 sig_change->current_noise =
1540 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
1541
1542 return NL_SKIP;
1543 }
1544
1545
1546 int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv,
1547 struct wpa_signal_info *sig_change)
1548 {
1549 struct nl_msg *msg;
1550
1551 sig_change->current_noise = WPA_INVALID_NOISE;
1552 sig_change->frequency = drv->assoc_freq;
1553
1554 msg = nl80211_drv_msg(drv, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
1555 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change);
1556 }
1557
1558
1559 static int get_channel_info(struct nl_msg *msg, void *arg)
1560 {
1561 struct nlattr *tb[NL80211_ATTR_MAX + 1] = { 0 };
1562 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1563 struct wpa_channel_info *chan_info = arg;
1564
1565 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1566 genlmsg_attrlen(gnlh, 0), NULL);
1567
1568 os_memset(chan_info, 0, sizeof(struct wpa_channel_info));
1569 chan_info->chanwidth = CHAN_WIDTH_UNKNOWN;
1570
1571 if (tb[NL80211_ATTR_WIPHY_FREQ])
1572 chan_info->frequency =
1573 nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]);
1574 if (tb[NL80211_ATTR_CHANNEL_WIDTH])
1575 chan_info->chanwidth = convert2width(
1576 nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH]));
1577 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1578 enum nl80211_channel_type ct =
1579 nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1580
1581 switch (ct) {
1582 case NL80211_CHAN_HT40MINUS:
1583 chan_info->sec_channel = -1;
1584 break;
1585 case NL80211_CHAN_HT40PLUS:
1586 chan_info->sec_channel = 1;
1587 break;
1588 default:
1589 chan_info->sec_channel = 0;
1590 break;
1591 }
1592 }
1593 if (tb[NL80211_ATTR_CENTER_FREQ1])
1594 chan_info->center_frq1 =
1595 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]);
1596 if (tb[NL80211_ATTR_CENTER_FREQ2])
1597 chan_info->center_frq2 =
1598 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]);
1599
1600 if (chan_info->center_frq2) {
1601 u8 seg1_idx = 0;
1602
1603 if (ieee80211_freq_to_chan(chan_info->center_frq2, &seg1_idx) !=
1604 NUM_HOSTAPD_MODES)
1605 chan_info->seg1_idx = seg1_idx;
1606 }
1607
1608 return NL_SKIP;
1609 }
1610
1611
1612 static int nl80211_channel_info(void *priv, struct wpa_channel_info *ci)
1613 {
1614 struct i802_bss *bss = priv;
1615 struct wpa_driver_nl80211_data *drv = bss->drv;
1616 struct nl_msg *msg;
1617
1618 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_GET_INTERFACE);
1619 return send_and_recv_msgs(drv, msg, get_channel_info, ci);
1620 }
1621
1622
1623 static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx,
1624 void *handle)
1625 {
1626 struct nl_cb *cb = eloop_ctx;
1627 int res;
1628
1629 wpa_printf(MSG_MSGDUMP, "nl80211: Event message available");
1630
1631 res = nl_recvmsgs(handle, cb);
1632 if (res < 0) {
1633 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d",
1634 __func__, res);
1635 }
1636 }
1637
1638
1639 /**
1640 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain
1641 * @priv: driver_nl80211 private data
1642 * @alpha2_arg: country to which to switch to
1643 * Returns: 0 on success, -1 on failure
1644 *
1645 * This asks nl80211 to set the regulatory domain for given
1646 * country ISO / IEC alpha2.
1647 */
1648 static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg)
1649 {
1650 struct i802_bss *bss = priv;
1651 struct wpa_driver_nl80211_data *drv = bss->drv;
1652 char alpha2[3];
1653 struct nl_msg *msg;
1654
1655 msg = nlmsg_alloc();
1656 if (!msg)
1657 return -ENOMEM;
1658
1659 alpha2[0] = alpha2_arg[0];
1660 alpha2[1] = alpha2_arg[1];
1661 alpha2[2] = '\0';
1662
1663 if (!nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG) ||
1664 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, alpha2)) {
1665 nlmsg_free(msg);
1666 return -EINVAL;
1667 }
1668 if (send_and_recv_msgs(drv, msg, NULL, NULL))
1669 return -EINVAL;
1670 return 0;
1671 }
1672
1673
1674 static int nl80211_get_country(struct nl_msg *msg, void *arg)
1675 {
1676 char *alpha2 = arg;
1677 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
1678 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1679
1680 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1681 genlmsg_attrlen(gnlh, 0), NULL);
1682 if (!tb_msg[NL80211_ATTR_REG_ALPHA2]) {
1683 wpa_printf(MSG_DEBUG, "nl80211: No country information available");
1684 return NL_SKIP;
1685 }
1686 os_strlcpy(alpha2, nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]), 3);
1687 return NL_SKIP;
1688 }
1689
1690
1691 static int wpa_driver_nl80211_get_country(void *priv, char *alpha2)
1692 {
1693 struct i802_bss *bss = priv;
1694 struct wpa_driver_nl80211_data *drv = bss->drv;
1695 struct nl_msg *msg;
1696 int ret;
1697
1698 msg = nlmsg_alloc();
1699 if (!msg)
1700 return -ENOMEM;
1701
1702 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG);
1703 alpha2[0] = '\0';
1704 ret = send_and_recv_msgs(drv, msg, nl80211_get_country, alpha2);
1705 if (!alpha2[0])
1706 ret = -1;
1707
1708 return ret;
1709 }
1710
1711
1712 static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global)
1713 {
1714 int ret;
1715
1716 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
1717 if (global->nl_cb == NULL) {
1718 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
1719 "callbacks");
1720 return -1;
1721 }
1722
1723 global->nl = nl_create_handle(global->nl_cb, "nl");
1724 if (global->nl == NULL)
1725 goto err;
1726
1727 global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211");
1728 if (global->nl80211_id < 0) {
1729 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not "
1730 "found");
1731 goto err;
1732 }
1733
1734 global->nl_event = nl_create_handle(global->nl_cb, "event");
1735 if (global->nl_event == NULL)
1736 goto err;
1737
1738 ret = nl_get_multicast_id(global, "nl80211", "scan");
1739 if (ret >= 0)
1740 ret = nl_socket_add_membership(global->nl_event, ret);
1741 if (ret < 0) {
1742 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
1743 "membership for scan events: %d (%s)",
1744 ret, nl_geterror(ret));
1745 goto err;
1746 }
1747
1748 ret = nl_get_multicast_id(global, "nl80211", "mlme");
1749 if (ret >= 0)
1750 ret = nl_socket_add_membership(global->nl_event, ret);
1751 if (ret < 0) {
1752 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
1753 "membership for mlme events: %d (%s)",
1754 ret, nl_geterror(ret));
1755 goto err;
1756 }
1757
1758 ret = nl_get_multicast_id(global, "nl80211", "regulatory");
1759 if (ret >= 0)
1760 ret = nl_socket_add_membership(global->nl_event, ret);
1761 if (ret < 0) {
1762 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast "
1763 "membership for regulatory events: %d (%s)",
1764 ret, nl_geterror(ret));
1765 /* Continue without regulatory events */
1766 }
1767
1768 ret = nl_get_multicast_id(global, "nl80211", "vendor");
1769 if (ret >= 0)
1770 ret = nl_socket_add_membership(global->nl_event, ret);
1771 if (ret < 0) {
1772 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast "
1773 "membership for vendor events: %d (%s)",
1774 ret, nl_geterror(ret));
1775 /* Continue without vendor events */
1776 }
1777
1778 nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
1779 no_seq_check, NULL);
1780 nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
1781 process_global_event, global);
1782
1783 nl80211_register_eloop_read(&global->nl_event,
1784 wpa_driver_nl80211_event_receive,
1785 global->nl_cb, 0);
1786
1787 return 0;
1788
1789 err:
1790 nl_destroy_handles(&global->nl_event);
1791 nl_destroy_handles(&global->nl);
1792 nl_cb_put(global->nl_cb);
1793 global->nl_cb = NULL;
1794 return -1;
1795 }
1796
1797
1798 static void nl80211_check_global(struct nl80211_global *global)
1799 {
1800 struct nl_sock *handle;
1801 const char *groups[] = { "scan", "mlme", "regulatory", "vendor", NULL };
1802 int ret;
1803 unsigned int i;
1804
1805 /*
1806 * Try to re-add memberships to handle case of cfg80211 getting reloaded
1807 * and all registration having been cleared.
1808 */
1809 handle = (void *) (((intptr_t) global->nl_event) ^
1810 ELOOP_SOCKET_INVALID);
1811
1812 for (i = 0; groups[i]; i++) {
1813 ret = nl_get_multicast_id(global, "nl80211", groups[i]);
1814 if (ret >= 0)
1815 ret = nl_socket_add_membership(handle, ret);
1816 if (ret < 0) {
1817 wpa_printf(MSG_INFO,
1818 "nl80211: Could not re-add multicast membership for %s events: %d (%s)",
1819 groups[i], ret, nl_geterror(ret));
1820 }
1821 }
1822 }
1823
1824
1825 static void wpa_driver_nl80211_rfkill_blocked(void *ctx)
1826 {
1827 struct wpa_driver_nl80211_data *drv = ctx;
1828
1829 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked");
1830
1831 /*
1832 * rtnetlink ifdown handler will report interfaces other than the P2P
1833 * Device interface as disabled.
1834 */
1835 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE)
1836 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_DISABLED, NULL);
1837 }
1838
1839
1840 static void wpa_driver_nl80211_rfkill_unblocked(void *ctx)
1841 {
1842 struct wpa_driver_nl80211_data *drv = ctx;
1843 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked");
1844 if (i802_set_iface_flags(drv->first_bss, 1)) {
1845 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP "
1846 "after rfkill unblock");
1847 return;
1848 }
1849
1850 if (is_p2p_net_interface(drv->nlmode))
1851 nl80211_disable_11b_rates(drv, drv->ifindex, 1);
1852
1853 /*
1854 * rtnetlink ifup handler will report interfaces other than the P2P
1855 * Device interface as enabled.
1856 */
1857 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE)
1858 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED, NULL);
1859 }
1860
1861
1862 static void wpa_driver_nl80211_handle_eapol_tx_status(int sock,
1863 void *eloop_ctx,
1864 void *handle)
1865 {
1866 struct wpa_driver_nl80211_data *drv = eloop_ctx;
1867 u8 data[2048];
1868 struct msghdr msg;
1869 struct iovec entry;
1870 u8 control[512];
1871 struct cmsghdr *cmsg;
1872 int res, found_ee = 0, found_wifi = 0, acked = 0;
1873 union wpa_event_data event;
1874
1875 memset(&msg, 0, sizeof(msg));
1876 msg.msg_iov = &entry;
1877 msg.msg_iovlen = 1;
1878 entry.iov_base = data;
1879 entry.iov_len = sizeof(data);
1880 msg.msg_control = &control;
1881 msg.msg_controllen = sizeof(control);
1882
1883 res = recvmsg(sock, &msg, MSG_ERRQUEUE);
1884 /* if error or not fitting 802.3 header, return */
1885 if (res < 14)
1886 return;
1887
1888 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg))
1889 {
1890 if (cmsg->cmsg_level == SOL_SOCKET &&
1891 cmsg->cmsg_type == SCM_WIFI_STATUS) {
1892 int *ack;
1893
1894 found_wifi = 1;
1895 ack = (void *)CMSG_DATA(cmsg);
1896 acked = *ack;
1897 }
1898
1899 if (cmsg->cmsg_level == SOL_PACKET &&
1900 cmsg->cmsg_type == PACKET_TX_TIMESTAMP) {
1901 struct sock_extended_err *err =
1902 (struct sock_extended_err *)CMSG_DATA(cmsg);
1903
1904 if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS)
1905 found_ee = 1;
1906 }
1907 }
1908
1909 if (!found_ee || !found_wifi)
1910 return;
1911
1912 memset(&event, 0, sizeof(event));
1913 event.eapol_tx_status.dst = data;
1914 event.eapol_tx_status.data = data + 14;
1915 event.eapol_tx_status.data_len = res - 14;
1916 event.eapol_tx_status.ack = acked;
1917 wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event);
1918 }
1919
1920
1921 static int nl80211_init_bss(struct i802_bss *bss)
1922 {
1923 bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
1924 if (!bss->nl_cb)
1925 return -1;
1926
1927 nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
1928 no_seq_check, NULL);
1929 nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
1930 process_bss_event, bss);
1931
1932 return 0;
1933 }
1934
1935
1936 static void nl80211_destroy_bss(struct i802_bss *bss)
1937 {
1938 nl_cb_put(bss->nl_cb);
1939 bss->nl_cb = NULL;
1940 }
1941
1942
1943 static void
1944 wpa_driver_nl80211_drv_init_rfkill(struct wpa_driver_nl80211_data *drv)
1945 {
1946 struct rfkill_config *rcfg;
1947
1948 if (drv->rfkill)
1949 return;
1950
1951 rcfg = os_zalloc(sizeof(*rcfg));
1952 if (!rcfg)
1953 return;
1954
1955 rcfg->ctx = drv;
1956
1957 /* rfkill uses netdev sysfs for initialization. However, P2P Device is
1958 * not associated with a netdev, so use the name of some other interface
1959 * sharing the same wiphy as the P2P Device interface.
1960 *
1961 * Note: This is valid, as a P2P Device interface is always dynamically
1962 * created and is created only once another wpa_s interface was added.
1963 */
1964 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) {
1965 struct nl80211_global *global = drv->global;
1966 struct wpa_driver_nl80211_data *tmp1;
1967
1968 dl_list_for_each(tmp1, &global->interfaces,
1969 struct wpa_driver_nl80211_data, list) {
1970 if (drv == tmp1 || drv->wiphy_idx != tmp1->wiphy_idx ||
1971 !tmp1->rfkill)
1972 continue;
1973
1974 wpa_printf(MSG_DEBUG,
1975 "nl80211: Use (%s) to initialize P2P Device rfkill",
1976 tmp1->first_bss->ifname);
1977 os_strlcpy(rcfg->ifname, tmp1->first_bss->ifname,
1978 sizeof(rcfg->ifname));
1979 break;
1980 }
1981 } else {
1982 os_strlcpy(rcfg->ifname, drv->first_bss->ifname,
1983 sizeof(rcfg->ifname));
1984 }
1985
1986 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked;
1987 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked;
1988 drv->rfkill = rfkill_init(rcfg);
1989 if (!drv->rfkill) {
1990 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available");
1991 os_free(rcfg);
1992 }
1993 }
1994
1995
1996 static void * wpa_driver_nl80211_drv_init(void *ctx, const char *ifname,
1997 void *global_priv, int hostapd,
1998 const u8 *set_addr,
1999 const char *driver_params)
2000 {
2001 struct wpa_driver_nl80211_data *drv;
2002 struct i802_bss *bss;
2003
2004 if (global_priv == NULL)
2005 return NULL;
2006 drv = os_zalloc(sizeof(*drv));
2007 if (drv == NULL)
2008 return NULL;
2009 drv->global = global_priv;
2010 drv->ctx = ctx;
2011 drv->hostapd = !!hostapd;
2012 drv->eapol_sock = -1;
2013
2014 /*
2015 * There is no driver capability flag for this, so assume it is
2016 * supported and disable this on first attempt to use if the driver
2017 * rejects the command due to missing support.
2018 */
2019 drv->set_rekey_offload = 1;
2020
2021 drv->num_if_indices = ARRAY_SIZE(drv->default_if_indices);
2022 drv->if_indices = drv->default_if_indices;
2023
2024 drv->first_bss = os_zalloc(sizeof(*drv->first_bss));
2025 if (!drv->first_bss) {
2026 os_free(drv);
2027 return NULL;
2028 }
2029 bss = drv->first_bss;
2030 bss->drv = drv;
2031 bss->ctx = ctx;
2032
2033 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname));
2034 drv->monitor_ifidx = -1;
2035 drv->monitor_sock = -1;
2036 drv->eapol_tx_sock = -1;
2037 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
2038
2039 if (nl80211_init_bss(bss))
2040 goto failed;
2041
2042 if (wpa_driver_nl80211_finish_drv_init(drv, set_addr, 1, driver_params))
2043 goto failed;
2044
2045 drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0);
2046 if (drv->eapol_tx_sock < 0)
2047 goto failed;
2048
2049 if (drv->data_tx_status) {
2050 int enabled = 1;
2051
2052 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS,
2053 &enabled, sizeof(enabled)) < 0) {
2054 wpa_printf(MSG_DEBUG,
2055 "nl80211: wifi status sockopt failed\n");
2056 drv->data_tx_status = 0;
2057 if (!drv->use_monitor)
2058 drv->capa.flags &=
2059 ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
2060 } else {
2061 eloop_register_read_sock(drv->eapol_tx_sock,
2062 wpa_driver_nl80211_handle_eapol_tx_status,
2063 drv, NULL);
2064 }
2065 }
2066
2067 if (drv->global) {
2068 nl80211_check_global(drv->global);
2069 dl_list_add(&drv->global->interfaces, &drv->list);
2070 drv->in_interface_list = 1;
2071 }
2072
2073 return bss;
2074
2075 failed:
2076 wpa_driver_nl80211_deinit(bss);
2077 return NULL;
2078 }
2079
2080
2081 /**
2082 * wpa_driver_nl80211_init - Initialize nl80211 driver interface
2083 * @ctx: context to be used when calling wpa_supplicant functions,
2084 * e.g., wpa_supplicant_event()
2085 * @ifname: interface name, e.g., wlan0
2086 * @global_priv: private driver global data from global_init()
2087 * Returns: Pointer to private data, %NULL on failure
2088 */
2089 static void * wpa_driver_nl80211_init(void *ctx, const char *ifname,
2090 void *global_priv)
2091 {
2092 return wpa_driver_nl80211_drv_init(ctx, ifname, global_priv, 0, NULL,
2093 NULL);
2094 }
2095
2096
2097 static int nl80211_register_frame(struct i802_bss *bss,
2098 struct nl_sock *nl_handle,
2099 u16 type, const u8 *match, size_t match_len)
2100 {
2101 struct wpa_driver_nl80211_data *drv = bss->drv;
2102 struct nl_msg *msg;
2103 int ret;
2104 char buf[30];
2105
2106 buf[0] = '\0';
2107 wpa_snprintf_hex(buf, sizeof(buf), match, match_len);
2108 wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x (%s) nl_handle=%p match=%s",
2109 type, fc2str(type), nl_handle, buf);
2110
2111 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_REGISTER_FRAME)) ||
2112 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE, type) ||
2113 nla_put(msg, NL80211_ATTR_FRAME_MATCH, match_len, match)) {
2114 nlmsg_free(msg);
2115 return -1;
2116 }
2117
2118 ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL);
2119 if (ret) {
2120 wpa_printf(MSG_DEBUG, "nl80211: Register frame command "
2121 "failed (type=%u): ret=%d (%s)",
2122 type, ret, strerror(-ret));
2123 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match",
2124 match, match_len);
2125 }
2126 return ret;
2127 }
2128
2129
2130 static int nl80211_alloc_mgmt_handle(struct i802_bss *bss)
2131 {
2132 if (bss->nl_mgmt) {
2133 wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting "
2134 "already on! (nl_mgmt=%p)", bss->nl_mgmt);
2135 return -1;
2136 }
2137
2138 bss->nl_mgmt = nl_create_handle(bss->nl_cb, "mgmt");
2139 if (bss->nl_mgmt == NULL)
2140 return -1;
2141
2142 return 0;
2143 }
2144
2145
2146 static void nl80211_mgmt_handle_register_eloop(struct i802_bss *bss)
2147 {
2148 nl80211_register_eloop_read(&bss->nl_mgmt,
2149 wpa_driver_nl80211_event_receive,
2150 bss->nl_cb, 0);
2151 }
2152
2153
2154 static int nl80211_register_action_frame(struct i802_bss *bss,
2155 const u8 *match, size_t match_len)
2156 {
2157 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4);
2158 return nl80211_register_frame(bss, bss->nl_mgmt,
2159 type, match, match_len);
2160 }
2161
2162
2163 static int nl80211_init_connect_handle(struct i802_bss *bss)
2164 {
2165 if (bss->nl_connect) {
2166 wpa_printf(MSG_DEBUG,
2167 "nl80211: Connect handle already created (nl_connect=%p)",
2168 bss->nl_connect);
2169 return -1;
2170 }
2171
2172 bss->nl_connect = nl_create_handle(bss->nl_cb, "connect");
2173 if (!bss->nl_connect)
2174 return -1;
2175 nl80211_register_eloop_read(&bss->nl_connect,
2176 wpa_driver_nl80211_event_receive,
2177 bss->nl_cb, 1);
2178 return 0;
2179 }
2180
2181
2182 static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss)
2183 {
2184 struct wpa_driver_nl80211_data *drv = bss->drv;
2185 int ret = 0;
2186
2187 if (nl80211_alloc_mgmt_handle(bss))
2188 return -1;
2189 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP "
2190 "handle %p", bss->nl_mgmt);
2191
2192 if (drv->nlmode == NL80211_IFTYPE_ADHOC ||
2193 ((drv->capa.flags & WPA_DRIVER_FLAGS_SAE) &&
2194 !(drv->capa.flags & WPA_DRIVER_FLAGS_SME))) {
2195 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_AUTH << 4);
2196
2197 /* register for any AUTH message */
2198 nl80211_register_frame(bss, bss->nl_mgmt, type, NULL, 0);
2199 }
2200
2201 #ifdef CONFIG_INTERWORKING
2202 /* QoS Map Configure */
2203 if (nl80211_register_action_frame(bss, (u8 *) "\x01\x04", 2) < 0)
2204 ret = -1;
2205 #endif /* CONFIG_INTERWORKING */
2206 #if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING) || defined(CONFIG_DPP)
2207 /* GAS Initial Request */
2208 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0)
2209 ret = -1;
2210 /* GAS Initial Response */
2211 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0)
2212 ret = -1;
2213 /* GAS Comeback Request */
2214 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0)
2215 ret = -1;
2216 /* GAS Comeback Response */
2217 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0)
2218 ret = -1;
2219 /* Protected GAS Initial Request */
2220 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0a", 2) < 0)
2221 ret = -1;
2222 /* Protected GAS Initial Response */
2223 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0b", 2) < 0)
2224 ret = -1;
2225 /* Protected GAS Comeback Request */
2226 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0c", 2) < 0)
2227 ret = -1;
2228 /* Protected GAS Comeback Response */
2229 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0d", 2) < 0)
2230 ret = -1;
2231 #endif /* CONFIG_P2P || CONFIG_INTERWORKING || CONFIG_DPP */
2232 #ifdef CONFIG_P2P
2233 /* P2P Public Action */
2234 if (nl80211_register_action_frame(bss,
2235 (u8 *) "\x04\x09\x50\x6f\x9a\x09",
2236 6) < 0)
2237 ret = -1;
2238 /* P2P Action */
2239 if (nl80211_register_action_frame(bss,
2240 (u8 *) "\x7f\x50\x6f\x9a\x09",
2241 5) < 0)
2242 ret = -1;
2243 #endif /* CONFIG_P2P */
2244 #ifdef CONFIG_DPP
2245 /* DPP Public Action */
2246 if (nl80211_register_action_frame(bss,
2247 (u8 *) "\x04\x09\x50\x6f\x9a\x1a",
2248 6) < 0)
2249 ret = -1;
2250 #endif /* CONFIG_DPP */
2251 #ifdef CONFIG_OCV
2252 /* SA Query Request */
2253 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x00", 2) < 0)
2254 ret = -1;
2255 #endif /* CONFIG_OCV */
2256 /* SA Query Response */
2257 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0)
2258 ret = -1;
2259 #ifdef CONFIG_TDLS
2260 if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) {
2261 /* TDLS Discovery Response */
2262 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) <
2263 0)
2264 ret = -1;
2265 }
2266 #endif /* CONFIG_TDLS */
2267 #ifdef CONFIG_FST
2268 /* FST Action frames */
2269 if (nl80211_register_action_frame(bss, (u8 *) "\x12", 1) < 0)
2270 ret = -1;
2271 #endif /* CONFIG_FST */
2272
2273 /* FT Action frames */
2274 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0)
2275 ret = -1;
2276 else
2277 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT |
2278 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK;
2279
2280 /* WNM - BSS Transition Management Request */
2281 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0)
2282 ret = -1;
2283 /* WNM-Sleep Mode Response */
2284 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x11", 2) < 0)
2285 ret = -1;
2286 #ifdef CONFIG_WNM
2287 /* WNM - Collocated Interference Request */
2288 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x0b", 2) < 0)
2289 ret = -1;
2290 #endif /* CONFIG_WNM */
2291
2292 #ifdef CONFIG_HS20
2293 /* WNM-Notification */
2294 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x1a", 2) < 0)
2295 ret = -1;
2296 #endif /* CONFIG_HS20 */
2297
2298 /* WMM-AC ADDTS Response */
2299 if (nl80211_register_action_frame(bss, (u8 *) "\x11\x01", 2) < 0)
2300 ret = -1;
2301
2302 /* WMM-AC DELTS */
2303 if (nl80211_register_action_frame(bss, (u8 *) "\x11\x02", 2) < 0)
2304 ret = -1;
2305
2306 /* Radio Measurement - Neighbor Report Response */
2307 if (nl80211_register_action_frame(bss, (u8 *) "\x05\x05", 2) < 0)
2308 ret = -1;
2309
2310 /* Radio Measurement - Radio Measurement Request */
2311 if (nl80211_register_action_frame(bss, (u8 *) "\x05\x00", 2) < 0)
2312 ret = -1;
2313
2314 /* Radio Measurement - Link Measurement Request */
2315 if ((drv->capa.rrm_flags & WPA_DRIVER_FLAGS_TX_POWER_INSERTION) &&
2316 (nl80211_register_action_frame(bss, (u8 *) "\x05\x02", 2) < 0))
2317 ret = -1;
2318
2319 nl80211_mgmt_handle_register_eloop(bss);
2320
2321 return ret;
2322 }
2323
2324
2325 static int nl80211_mgmt_subscribe_mesh(struct i802_bss *bss)
2326 {
2327 int ret = 0;
2328
2329 if (nl80211_alloc_mgmt_handle(bss))
2330 return -1;
2331
2332 wpa_printf(MSG_DEBUG,
2333 "nl80211: Subscribe to mgmt frames with mesh handle %p",
2334 bss->nl_mgmt);
2335
2336 /* Auth frames for mesh SAE */
2337 if (nl80211_register_frame(bss, bss->nl_mgmt,
2338 (WLAN_FC_TYPE_MGMT << 2) |
2339 (WLAN_FC_STYPE_AUTH << 4),
2340 NULL, 0) < 0)
2341 ret = -1;
2342
2343 /* Mesh peering open */
2344 if (nl80211_register_action_frame(bss, (u8 *) "\x0f\x01", 2) < 0)
2345 ret = -1;
2346 /* Mesh peering confirm */
2347 if (nl80211_register_action_frame(bss, (u8 *) "\x0f\x02", 2) < 0)
2348 ret = -1;
2349 /* Mesh peering close */
2350 if (nl80211_register_action_frame(bss, (u8 *) "\x0f\x03", 2) < 0)
2351 ret = -1;
2352
2353 nl80211_mgmt_handle_register_eloop(bss);
2354
2355 return ret;
2356 }
2357
2358
2359 static int nl80211_register_spurious_class3(struct i802_bss *bss)
2360 {
2361 struct nl_msg *msg;
2362 int ret;
2363
2364 msg = nl80211_bss_msg(bss, 0, NL80211_CMD_UNEXPECTED_FRAME);
2365 ret = send_and_recv(bss->drv->global, bss->nl_mgmt, msg, NULL, NULL);
2366 if (ret) {
2367 wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 "
2368 "failed: ret=%d (%s)",
2369 ret, strerror(-ret));
2370 }
2371 return ret;
2372 }
2373
2374
2375 static int nl80211_action_subscribe_ap(struct i802_bss *bss)
2376 {
2377 int ret = 0;
2378
2379 /* Public Action frames */
2380 if (nl80211_register_action_frame(bss, (u8 *) "\x04", 1) < 0)
2381 ret = -1;
2382 /* RRM Measurement Report */
2383 if (nl80211_register_action_frame(bss, (u8 *) "\x05\x01", 2) < 0)
2384 ret = -1;
2385 /* RRM Link Measurement Report */
2386 if (nl80211_register_action_frame(bss, (u8 *) "\x05\x03", 2) < 0)
2387 ret = -1;
2388 /* RRM Neighbor Report Request */
2389 if (nl80211_register_action_frame(bss, (u8 *) "\x05\x04", 2) < 0)
2390 ret = -1;
2391 /* FT Action frames */
2392 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0)
2393 ret = -1;
2394 /* SA Query */
2395 if (nl80211_register_action_frame(bss, (u8 *) "\x08", 1) < 0)
2396 ret = -1;
2397 /* Protected Dual of Public Action */
2398 if (nl80211_register_action_frame(bss, (u8 *) "\x09", 1) < 0)
2399 ret = -1;
2400 /* WNM */
2401 if (nl80211_register_action_frame(bss, (u8 *) "\x0a", 1) < 0)
2402 ret = -1;
2403 /* WMM */
2404 if (nl80211_register_action_frame(bss, (u8 *) "\x11", 1) < 0)
2405 ret = -1;
2406 #ifdef CONFIG_FST
2407 /* FST Action frames */
2408 if (nl80211_register_action_frame(bss, (u8 *) "\x12", 1) < 0)
2409 ret = -1;
2410 #endif /* CONFIG_FST */
2411 /* Vendor-specific */
2412 if (nl80211_register_action_frame(bss, (u8 *) "\x7f", 1) < 0)
2413 ret = -1;
2414
2415 return ret;
2416 }
2417
2418
2419 static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss)
2420 {
2421 static const int stypes[] = {
2422 WLAN_FC_STYPE_AUTH,
2423 WLAN_FC_STYPE_ASSOC_REQ,
2424 WLAN_FC_STYPE_REASSOC_REQ,
2425 WLAN_FC_STYPE_DISASSOC,
2426 WLAN_FC_STYPE_DEAUTH,
2427 WLAN_FC_STYPE_PROBE_REQ,
2428 /* Beacon doesn't work as mac80211 doesn't currently allow
2429 * it, but it wouldn't really be the right thing anyway as
2430 * it isn't per interface ... maybe just dump the scan
2431 * results periodically for OLBC?
2432 */
2433 /* WLAN_FC_STYPE_BEACON, */
2434 };
2435 unsigned int i;
2436
2437 if (nl80211_alloc_mgmt_handle(bss))
2438 return -1;
2439 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP "
2440 "handle %p", bss->nl_mgmt);
2441
2442 for (i = 0; i < ARRAY_SIZE(stypes); i++) {
2443 if (nl80211_register_frame(bss, bss->nl_mgmt,
2444 (WLAN_FC_TYPE_MGMT << 2) |
2445 (stypes[i] << 4),
2446 NULL, 0) < 0) {
2447 goto out_err;
2448 }
2449 }
2450
2451 if (nl80211_action_subscribe_ap(bss))
2452 goto out_err;
2453
2454 if (nl80211_register_spurious_class3(bss))
2455 goto out_err;
2456
2457 nl80211_mgmt_handle_register_eloop(bss);
2458 return 0;
2459
2460 out_err:
2461 nl_destroy_handles(&bss->nl_mgmt);
2462 return -1;
2463 }
2464
2465
2466 static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss)
2467 {
2468 if (nl80211_alloc_mgmt_handle(bss))
2469 return -1;
2470 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP "
2471 "handle %p (device SME)", bss->nl_mgmt);
2472
2473 if (nl80211_action_subscribe_ap(bss))
2474 goto out_err;
2475
2476 if (bss->drv->device_ap_sme) {
2477 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_AUTH << 4);
2478
2479 /* Register for all Authentication frames */
2480 if (nl80211_register_frame(bss, bss->nl_mgmt, type, NULL, 0)
2481 < 0)
2482 wpa_printf(MSG_DEBUG,
2483 "nl80211: Failed to subscribe to handle Authentication frames - SAE offload may not work");
2484 }
2485
2486 nl80211_mgmt_handle_register_eloop(bss);
2487 return 0;
2488
2489 out_err:
2490 nl_destroy_handles(&bss->nl_mgmt);
2491 return -1;
2492 }
2493
2494
2495 static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason)
2496 {
2497 if (bss->nl_mgmt == NULL)
2498 return;
2499 wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p "
2500 "(%s)", bss->nl_mgmt, reason);
2501 nl80211_destroy_eloop_handle(&bss->nl_mgmt, 0);
2502
2503 nl80211_put_wiphy_data_ap(bss);
2504 }
2505
2506
2507 static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx)
2508 {
2509 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL);
2510 }
2511
2512
2513 static void nl80211_del_p2pdev(struct i802_bss *bss)
2514 {
2515 struct nl_msg *msg;
2516 int ret;
2517
2518 msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_DEL_INTERFACE);
2519 ret = send_and_recv_msgs(bss->drv, msg, NULL, NULL);
2520
2521 wpa_printf(MSG_DEBUG, "nl80211: Delete P2P Device %s (0x%llx): %s",
2522 bss->ifname, (long long unsigned int) bss->wdev_id,
2523 strerror(-ret));
2524 }
2525
2526
2527 static int nl80211_set_p2pdev(struct i802_bss *bss, int start)
2528 {
2529 struct nl_msg *msg;
2530 int ret;
2531
2532 msg = nl80211_cmd_msg(bss, 0, start ? NL80211_CMD_START_P2P_DEVICE :
2533 NL80211_CMD_STOP_P2P_DEVICE);
2534 ret = send_and_recv_msgs(bss->drv, msg, NULL, NULL);
2535
2536 wpa_printf(MSG_DEBUG, "nl80211: %s P2P Device %s (0x%llx): %s",
2537 start ? "Start" : "Stop",
2538 bss->ifname, (long long unsigned int) bss->wdev_id,
2539 strerror(-ret));
2540 return ret;
2541 }
2542
2543
2544 static int i802_set_iface_flags(struct i802_bss *bss, int up)
2545 {
2546 enum nl80211_iftype nlmode;
2547
2548 nlmode = nl80211_get_ifmode(bss);
2549 if (nlmode != NL80211_IFTYPE_P2P_DEVICE) {
2550 return linux_set_iface_flags(bss->drv->global->ioctl_sock,
2551 bss->ifname, up);
2552 }
2553
2554 /* P2P Device has start/stop which is equivalent */
2555 return nl80211_set_p2pdev(bss, up);
2556 }
2557
2558
2559 #ifdef CONFIG_TESTING_OPTIONS
2560 static int qca_vendor_test_cmd_handler(struct nl_msg *msg, void *arg)
2561 {
2562 /* struct wpa_driver_nl80211_data *drv = arg; */
2563 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2564 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2565
2566
2567 wpa_printf(MSG_DEBUG,
2568 "nl80211: QCA vendor test command response received");
2569
2570 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2571 genlmsg_attrlen(gnlh, 0), NULL);
2572 if (!tb[NL80211_ATTR_VENDOR_DATA]) {
2573 wpa_printf(MSG_DEBUG, "nl80211: No vendor data attribute");
2574 return NL_SKIP;
2575 }
2576
2577 wpa_hexdump(MSG_DEBUG,
2578 "nl80211: Received QCA vendor test command response",
2579 nla_data(tb[NL80211_ATTR_VENDOR_DATA]),
2580 nla_len(tb[NL80211_ATTR_VENDOR_DATA]));
2581
2582 return NL_SKIP;
2583 }
2584 #endif /* CONFIG_TESTING_OPTIONS */
2585
2586
2587 static void qca_vendor_test(struct wpa_driver_nl80211_data *drv)
2588 {
2589 #ifdef CONFIG_TESTING_OPTIONS
2590 struct nl_msg *msg;
2591 struct nlattr *params;
2592 int ret;
2593
2594 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
2595 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
2596 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
2597 QCA_NL80211_VENDOR_SUBCMD_TEST) ||
2598 !(params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) ||
2599 nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_TEST, 123)) {
2600 nlmsg_free(msg);
2601 return;
2602 }
2603 nla_nest_end(msg, params);
2604
2605 ret = send_and_recv_msgs(drv, msg, qca_vendor_test_cmd_handler, drv);
2606 wpa_printf(MSG_DEBUG,
2607 "nl80211: QCA vendor test command returned %d (%s)",
2608 ret, strerror(-ret));
2609 #endif /* CONFIG_TESTING_OPTIONS */
2610 }
2611
2612
2613 static int
2614 wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv,
2615 const u8 *set_addr, int first,
2616 const char *driver_params)
2617 {
2618 struct i802_bss *bss = drv->first_bss;
2619 int send_rfkill_event = 0;
2620 enum nl80211_iftype nlmode;
2621
2622 drv->ifindex = if_nametoindex(bss->ifname);
2623 bss->ifindex = drv->ifindex;
2624 bss->wdev_id = drv->global->if_add_wdevid;
2625 bss->wdev_id_set = drv->global->if_add_wdevid_set;
2626
2627 bss->if_dynamic = drv->ifindex == drv->global->if_add_ifindex;
2628 bss->if_dynamic = bss->if_dynamic || drv->global->if_add_wdevid_set;
2629 drv->global->if_add_wdevid_set = 0;
2630
2631 if (!bss->if_dynamic && nl80211_get_ifmode(bss) == NL80211_IFTYPE_AP)
2632 bss->static_ap = 1;
2633
2634 if (first &&
2635 nl80211_get_ifmode(bss) != NL80211_IFTYPE_P2P_DEVICE &&
2636 linux_iface_up(drv->global->ioctl_sock, bss->ifname) > 0)
2637 drv->start_iface_up = 1;
2638
2639 if (wpa_driver_nl80211_capa(drv))
2640 return -1;
2641
2642 if (driver_params && nl80211_set_param(bss, driver_params) < 0)
2643 return -1;
2644
2645 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s",
2646 bss->ifname, drv->phyname);
2647
2648 if (set_addr &&
2649 (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0) ||
2650 linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
2651 set_addr)))
2652 return -1;
2653
2654 if (first && nl80211_get_ifmode(bss) == NL80211_IFTYPE_AP)
2655 drv->start_mode_ap = 1;
2656
2657 if (drv->hostapd || bss->static_ap)
2658 nlmode = NL80211_IFTYPE_AP;
2659 else if (bss->if_dynamic ||
2660 nl80211_get_ifmode(bss) == NL80211_IFTYPE_MESH_POINT)
2661 nlmode = nl80211_get_ifmode(bss);
2662 else
2663 nlmode = NL80211_IFTYPE_STATION;
2664
2665 if (wpa_driver_nl80211_set_mode(bss, nlmode) < 0) {
2666 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver mode");
2667 return -1;
2668 }
2669
2670 if (nlmode == NL80211_IFTYPE_P2P_DEVICE)
2671 nl80211_get_macaddr(bss);
2672
2673 wpa_driver_nl80211_drv_init_rfkill(drv);
2674
2675 if (!rfkill_is_blocked(drv->rfkill)) {
2676 int ret = i802_set_iface_flags(bss, 1);
2677 if (ret) {
2678 wpa_printf(MSG_ERROR, "nl80211: Could not set "
2679 "interface '%s' UP", bss->ifname);
2680 return ret;
2681 }
2682
2683 if (is_p2p_net_interface(nlmode))
2684 nl80211_disable_11b_rates(bss->drv,
2685 bss->drv->ifindex, 1);
2686
2687 if (nlmode == NL80211_IFTYPE_P2P_DEVICE)
2688 return ret;
2689 } else {
2690 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable "
2691 "interface '%s' due to rfkill", bss->ifname);
2692 if (nlmode != NL80211_IFTYPE_P2P_DEVICE)
2693 drv->if_disabled = 1;
2694
2695 send_rfkill_event = 1;
2696 }
2697
2698 if (!drv->hostapd && nlmode != NL80211_IFTYPE_P2P_DEVICE)
2699 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex,
2700 1, IF_OPER_DORMANT);
2701
2702 if (nlmode != NL80211_IFTYPE_P2P_DEVICE) {
2703 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
2704 bss->addr))
2705 return -1;
2706 os_memcpy(drv->perm_addr, bss->addr, ETH_ALEN);
2707 }
2708
2709 if (send_rfkill_event) {
2710 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill,
2711 drv, drv->ctx);
2712 }
2713
2714 if (drv->vendor_cmd_test_avail)
2715 qca_vendor_test(drv);
2716
2717 nl80211_init_connect_handle(bss);
2718
2719 return 0;
2720 }
2721
2722
2723 static int wpa_driver_nl80211_del_beacon(struct i802_bss *bss)
2724 {
2725 struct nl_msg *msg;
2726 struct wpa_driver_nl80211_data *drv = bss->drv;
2727
2728 wpa_printf(MSG_DEBUG, "nl80211: Remove beacon (ifindex=%d)",
2729 drv->ifindex);
2730 nl80211_put_wiphy_data_ap(bss);
2731 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_DEL_BEACON);
2732 return send_and_recv_msgs(drv, msg, NULL, NULL);
2733 }
2734
2735
2736 /**
2737 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface
2738 * @bss: Pointer to private nl80211 data from wpa_driver_nl80211_init()
2739 *
2740 * Shut down driver interface and processing of driver events. Free
2741 * private data buffer if one was allocated in wpa_driver_nl80211_init().
2742 */
2743 static void wpa_driver_nl80211_deinit(struct i802_bss *bss)
2744 {
2745 struct wpa_driver_nl80211_data *drv = bss->drv;
2746 unsigned int i;
2747
2748 wpa_printf(MSG_INFO, "nl80211: deinit ifname=%s disabled_11b_rates=%d",
2749 bss->ifname, drv->disabled_11b_rates);
2750
2751 bss->in_deinit = 1;
2752 if (drv->data_tx_status)
2753 eloop_unregister_read_sock(drv->eapol_tx_sock);
2754 if (drv->eapol_tx_sock >= 0)
2755 close(drv->eapol_tx_sock);
2756
2757 if (bss->nl_preq)
2758 wpa_driver_nl80211_probe_req_report(bss, 0);
2759 if (bss->added_if_into_bridge) {
2760 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname,
2761 bss->ifname) < 0)
2762 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
2763 "interface %s from bridge %s: %s",
2764 bss->ifname, bss->brname, strerror(errno));
2765 }
2766
2767 if (drv->rtnl_sk)
2768 nl_socket_free(drv->rtnl_sk);
2769
2770 if (bss->added_bridge) {
2771 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->brname,
2772 0) < 0)
2773 wpa_printf(MSG_INFO,
2774 "nl80211: Could not set bridge %s down",
2775 bss->brname);
2776 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0)
2777 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
2778 "bridge %s: %s",
2779 bss->brname, strerror(errno));
2780 }
2781
2782 nl80211_remove_monitor_interface(drv);
2783
2784 if (is_ap_interface(drv->nlmode))
2785 wpa_driver_nl80211_del_beacon(bss);
2786
2787 if (drv->eapol_sock >= 0) {
2788 eloop_unregister_read_sock(drv->eapol_sock);
2789 close(drv->eapol_sock);
2790 }
2791
2792 if (drv->if_indices != drv->default_if_indices)
2793 os_free(drv->if_indices);
2794
2795 if (drv->disabled_11b_rates)
2796 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
2797
2798 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0,
2799 IF_OPER_UP);
2800 eloop_cancel_timeout(wpa_driver_nl80211_send_rfkill, drv, drv->ctx);
2801 rfkill_deinit(drv->rfkill);
2802
2803 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
2804
2805 if (!drv->start_iface_up)
2806 (void) i802_set_iface_flags(bss, 0);
2807
2808 if (drv->addr_changed) {
2809 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname,
2810 0) < 0) {
2811 wpa_printf(MSG_DEBUG,
2812 "nl80211: Could not set interface down to restore permanent MAC address");
2813 }
2814 if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
2815 drv->perm_addr) < 0) {
2816 wpa_printf(MSG_DEBUG,
2817 "nl80211: Could not restore permanent MAC address");
2818 }
2819 }
2820
2821 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) {
2822 if (!drv->hostapd || !drv->start_mode_ap)
2823 wpa_driver_nl80211_set_mode(bss,
2824 NL80211_IFTYPE_STATION);
2825 nl80211_mgmt_unsubscribe(bss, "deinit");
2826 } else {
2827 nl80211_mgmt_unsubscribe(bss, "deinit");
2828 nl80211_del_p2pdev(bss);
2829 }
2830
2831 if (bss->nl_connect)
2832 nl80211_destroy_eloop_handle(&bss->nl_connect, 1);
2833
2834 nl80211_destroy_bss(drv->first_bss);
2835
2836 os_free(drv->filter_ssids);
2837
2838 os_free(drv->auth_ie);
2839
2840 if (drv->in_interface_list)
2841 dl_list_del(&drv->list);
2842
2843 os_free(drv->extended_capa);
2844 os_free(drv->extended_capa_mask);
2845 for (i = 0; i < drv->num_iface_ext_capa; i++) {
2846 os_free(drv->iface_ext_capa[i].ext_capa);
2847 os_free(drv->iface_ext_capa[i].ext_capa_mask);
2848 }
2849 os_free(drv->first_bss);
2850 os_free(drv);
2851 }
2852
2853
2854 static u32 wpa_alg_to_cipher_suite(enum wpa_alg alg, size_t key_len)
2855 {
2856 switch (alg) {
2857 case WPA_ALG_WEP:
2858 if (key_len == 5)
2859 return RSN_CIPHER_SUITE_WEP40;
2860 return RSN_CIPHER_SUITE_WEP104;
2861 case WPA_ALG_TKIP:
2862 return RSN_CIPHER_SUITE_TKIP;
2863 case WPA_ALG_CCMP:
2864 return RSN_CIPHER_SUITE_CCMP;
2865 case WPA_ALG_GCMP:
2866 return RSN_CIPHER_SUITE_GCMP;
2867 case WPA_ALG_CCMP_256:
2868 return RSN_CIPHER_SUITE_CCMP_256;
2869 case WPA_ALG_GCMP_256:
2870 return RSN_CIPHER_SUITE_GCMP_256;
2871 case WPA_ALG_IGTK:
2872 return RSN_CIPHER_SUITE_AES_128_CMAC;
2873 case WPA_ALG_BIP_GMAC_128:
2874 return RSN_CIPHER_SUITE_BIP_GMAC_128;
2875 case WPA_ALG_BIP_GMAC_256:
2876 return RSN_CIPHER_SUITE_BIP_GMAC_256;
2877 case WPA_ALG_BIP_CMAC_256:
2878 return RSN_CIPHER_SUITE_BIP_CMAC_256;
2879 case WPA_ALG_SMS4:
2880 return RSN_CIPHER_SUITE_SMS4;
2881 case WPA_ALG_KRK:
2882 return RSN_CIPHER_SUITE_KRK;
2883 case WPA_ALG_NONE:
2884 case WPA_ALG_PMK:
2885 wpa_printf(MSG_ERROR, "nl80211: Unexpected encryption algorithm %d",
2886 alg);
2887 return 0;
2888 }
2889
2890 wpa_printf(MSG_ERROR, "nl80211: Unsupported encryption algorithm %d",
2891 alg);
2892 return 0;
2893 }
2894
2895
2896 static u32 wpa_cipher_to_cipher_suite(unsigned int cipher)
2897 {
2898 switch (cipher) {
2899 case WPA_CIPHER_CCMP_256:
2900 return RSN_CIPHER_SUITE_CCMP_256;
2901 case WPA_CIPHER_GCMP_256:
2902 return RSN_CIPHER_SUITE_GCMP_256;
2903 case WPA_CIPHER_CCMP:
2904 return RSN_CIPHER_SUITE_CCMP;
2905 case WPA_CIPHER_GCMP:
2906 return RSN_CIPHER_SUITE_GCMP;
2907 case WPA_CIPHER_TKIP:
2908 return RSN_CIPHER_SUITE_TKIP;
2909 case WPA_CIPHER_WEP104:
2910 return RSN_CIPHER_SUITE_WEP104;
2911 case WPA_CIPHER_WEP40:
2912 return RSN_CIPHER_SUITE_WEP40;
2913 case WPA_CIPHER_GTK_NOT_USED:
2914 return RSN_CIPHER_SUITE_NO_GROUP_ADDRESSED;
2915 }
2916
2917 return 0;
2918 }
2919
2920
2921 static int wpa_cipher_to_cipher_suites(unsigned int ciphers, u32 suites[],
2922 int max_suites)
2923 {
2924 int num_suites = 0;
2925
2926 if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP_256)
2927 suites[num_suites++] = RSN_CIPHER_SUITE_CCMP_256;
2928 if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP_256)
2929 suites[num_suites++] = RSN_CIPHER_SUITE_GCMP_256;
2930 if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP)
2931 suites[num_suites++] = RSN_CIPHER_SUITE_CCMP;
2932 if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP)
2933 suites[num_suites++] = RSN_CIPHER_SUITE_GCMP;
2934 if (num_suites < max_suites && ciphers & WPA_CIPHER_TKIP)
2935 suites[num_suites++] = RSN_CIPHER_SUITE_TKIP;
2936 if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP104)
2937 suites[num_suites++] = RSN_CIPHER_SUITE_WEP104;
2938 if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP40)
2939 suites[num_suites++] = RSN_CIPHER_SUITE_WEP40;
2940
2941 return num_suites;
2942 }
2943
2944
2945 #ifdef CONFIG_DRIVER_NL80211_QCA
2946 static int issue_key_mgmt_set_key(struct wpa_driver_nl80211_data *drv,
2947 const u8 *key, size_t key_len)
2948 {
2949 struct nl_msg *msg;
2950 int ret;
2951
2952 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_KEY_MGMT_OFFLOAD))
2953 return 0;
2954
2955 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
2956 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
2957 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
2958 QCA_NL80211_VENDOR_SUBCMD_KEY_MGMT_SET_KEY) ||
2959 nla_put(msg, NL80211_ATTR_VENDOR_DATA, key_len, key)) {
2960 nl80211_nlmsg_clear(msg);
2961 nlmsg_free(msg);
2962 return -1;
2963 }
2964 ret = send_and_recv_msgs(drv, msg, NULL, (void *) -1);
2965 if (ret) {
2966 wpa_printf(MSG_DEBUG,
2967 "nl80211: Key management set key failed: ret=%d (%s)",
2968 ret, strerror(-ret));
2969 }
2970
2971 return ret;
2972 }
2973 #endif /* CONFIG_DRIVER_NL80211_QCA */
2974
2975
2976 static int nl80211_set_pmk(struct wpa_driver_nl80211_data *drv,
2977 const u8 *key, size_t key_len,
2978 const u8 *addr)
2979 {
2980 struct nl_msg *msg = NULL;
2981 int ret;
2982
2983 /*
2984 * If the authenticator address is not set, assume it is
2985 * the current BSSID.
2986 */
2987 if (!addr && drv->associated)
2988 addr = drv->bssid;
2989 else if (!addr)
2990 return -1;
2991
2992 wpa_printf(MSG_DEBUG, "nl80211: Set PMK to the driver for " MACSTR,
2993 MAC2STR(addr));
2994 wpa_hexdump_key(MSG_DEBUG, "nl80211: PMK", key, key_len);
2995 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_SET_PMK);
2996 if (!msg ||
2997 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
2998 nla_put(msg, NL80211_ATTR_PMK, key_len, key)) {
2999 nl80211_nlmsg_clear(msg);
3000 nlmsg_free(msg);
3001 return -ENOBUFS;
3002 }
3003
3004 ret = send_and_recv_msgs(drv, msg, NULL, (void *) -1);
3005 if (ret) {
3006 wpa_printf(MSG_DEBUG, "nl80211: Set PMK failed: ret=%d (%s)",
3007 ret, strerror(-ret));
3008 }
3009
3010 return ret;
3011 }
3012
3013
3014 static int wpa_driver_nl80211_set_key(struct i802_bss *bss,
3015 struct wpa_driver_set_key_params *params)
3016 {
3017 struct wpa_driver_nl80211_data *drv = bss->drv;
3018 int ifindex;
3019 struct nl_msg *msg;
3020 struct nl_msg *key_msg;
3021 int ret;
3022 int tdls = 0;
3023 const char *ifname = params->ifname;
3024 enum wpa_alg alg = params->alg;
3025 const u8 *addr = params->addr;
3026 int key_idx = params->key_idx;
3027 int set_tx = params->set_tx;
3028 const u8 *seq = params->seq;
3029 size_t seq_len = params->seq_len;
3030 const u8 *key = params->key;
3031 size_t key_len = params->key_len;
3032 int vlan_id = params->vlan_id;
3033
3034 /* Ignore for P2P Device */
3035 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE)
3036 return 0;
3037
3038 ifindex = if_nametoindex(ifname);
3039 wpa_printf(MSG_DEBUG, "%s: ifindex=%d (%s) alg=%d addr=%p key_idx=%d "
3040 "set_tx=%d seq_len=%lu key_len=%lu",
3041 __func__, ifindex, ifname, alg, addr, key_idx, set_tx,
3042 (unsigned long) seq_len, (unsigned long) key_len);
3043 #ifdef CONFIG_TDLS
3044 if (key_idx == -1) {
3045 key_idx = 0;
3046 tdls = 1;
3047 }
3048 #endif /* CONFIG_TDLS */
3049
3050 #ifdef CONFIG_DRIVER_NL80211_QCA
3051 if (alg == WPA_ALG_PMK &&
3052 (drv->capa.flags & WPA_DRIVER_FLAGS_KEY_MGMT_OFFLOAD)) {
3053 wpa_printf(MSG_DEBUG, "%s: calling issue_key_mgmt_set_key",
3054 __func__);
3055 ret = issue_key_mgmt_set_key(drv, key, key_len);
3056 return ret;
3057 }
3058 #endif /* CONFIG_DRIVER_NL80211_QCA */
3059
3060 if (alg == WPA_ALG_PMK &&
3061 (drv->capa.flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_8021X))
3062 return nl80211_set_pmk(drv, key, key_len, addr);
3063
3064 key_msg = nlmsg_alloc();
3065 if (!key_msg)
3066 return -ENOBUFS;
3067
3068 if (alg == WPA_ALG_NONE) {
3069 msg = nl80211_ifindex_msg(drv, ifindex, 0, NL80211_CMD_DEL_KEY);
3070 if (!msg)
3071 goto fail2;
3072 } else {
3073 u32 suite;
3074
3075 suite = wpa_alg_to_cipher_suite(alg, key_len);
3076 if (!suite)
3077 goto fail2;
3078 msg = nl80211_ifindex_msg(drv, ifindex, 0, NL80211_CMD_NEW_KEY);
3079 if (!msg)
3080 goto fail2;
3081 if (nla_put(key_msg, NL80211_KEY_DATA, key_len, key) ||
3082 nla_put_u32(key_msg, NL80211_KEY_CIPHER, suite))
3083 goto fail;
3084 wpa_hexdump_key(MSG_DEBUG, "nl80211: KEY_DATA", key, key_len);
3085 }
3086
3087 if (seq && seq_len) {
3088 if (nla_put(key_msg, NL80211_KEY_SEQ, seq_len, seq))
3089 goto fail;
3090 wpa_hexdump(MSG_DEBUG, "nl80211: KEY_SEQ", seq, seq_len);
3091 }
3092
3093 if (addr && !is_broadcast_ether_addr(addr)) {
3094 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr));
3095 if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
3096 goto fail;
3097
3098 if (alg != WPA_ALG_WEP && key_idx && !set_tx) {
3099 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK");
3100 if (nla_put_u32(key_msg, NL80211_KEY_TYPE,
3101 NL80211_KEYTYPE_GROUP))
3102 goto fail;
3103 }
3104 } else if (addr && is_broadcast_ether_addr(addr)) {
3105 struct nlattr *types;
3106
3107 wpa_printf(MSG_DEBUG, " broadcast key");
3108
3109 types = nla_nest_start(key_msg, NL80211_KEY_DEFAULT_TYPES);
3110 if (!types ||
3111 nla_put_flag(key_msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST))
3112 goto fail;
3113 nla_nest_end(key_msg, types);
3114 }
3115 if (nla_put_u8(key_msg, NL80211_KEY_IDX, key_idx) ||
3116 nla_put_nested(msg, NL80211_ATTR_KEY, key_msg))
3117 goto fail;
3118 nl80211_nlmsg_clear(key_msg);
3119 nlmsg_free(key_msg);
3120 key_msg = NULL;
3121
3122 if (vlan_id && (drv->capa.flags & WPA_DRIVER_FLAGS_VLAN_OFFLOAD)) {
3123 wpa_printf(MSG_DEBUG, "nl80211: VLAN ID %d", vlan_id);
3124 if (nla_put_u16(msg, NL80211_ATTR_VLAN_ID, vlan_id))
3125 goto fail;
3126 }
3127
3128 ret = send_and_recv_msgs(drv, msg, NULL, key ? (void *) -1 : NULL);
3129 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE)
3130 ret = 0;
3131 if (ret)
3132 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)",
3133 ret, strerror(-ret));
3134
3135 /*
3136 * If we failed or don't need to set the default TX key (below),
3137 * we're done here.
3138 */
3139 if (ret || !set_tx || alg == WPA_ALG_NONE || tdls)
3140 return ret;
3141 if (is_ap_interface(drv->nlmode) && addr &&
3142 !is_broadcast_ether_addr(addr))
3143 return ret;
3144
3145 key_msg = nlmsg_alloc();
3146 if (!key_msg)
3147 return -ENOBUFS;
3148
3149 msg = nl80211_ifindex_msg(drv, ifindex, 0, NL80211_CMD_SET_KEY);
3150 if (!msg)
3151 goto fail2;
3152 if (!key_msg ||
3153 nla_put_u8(key_msg, NL80211_KEY_IDX, key_idx) ||
3154 nla_put_flag(key_msg, (alg == WPA_ALG_IGTK ||
3155 alg == WPA_ALG_BIP_GMAC_128 ||
3156 alg == WPA_ALG_BIP_GMAC_256 ||
3157 alg == WPA_ALG_BIP_CMAC_256) ?
3158 NL80211_KEY_DEFAULT_MGMT :
3159 NL80211_KEY_DEFAULT))
3160 goto fail;
3161 if (addr && is_broadcast_ether_addr(addr)) {
3162 struct nlattr *types;
3163
3164 types = nla_nest_start(key_msg, NL80211_KEY_DEFAULT_TYPES);
3165 if (!types ||
3166 nla_put_flag(key_msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST))
3167 goto fail;
3168 nla_nest_end(key_msg, types);
3169 } else if (addr) {
3170 struct nlattr *types;
3171
3172 types = nla_nest_start(key_msg, NL80211_KEY_DEFAULT_TYPES);
3173 if (!types ||
3174 nla_put_flag(key_msg, NL80211_KEY_DEFAULT_TYPE_UNICAST))
3175 goto fail;
3176 nla_nest_end(key_msg, types);
3177 }
3178
3179 if (nla_put_nested(msg, NL80211_ATTR_KEY, key_msg))
3180 goto fail;
3181 nl80211_nlmsg_clear(key_msg);
3182 nlmsg_free(key_msg);
3183 key_msg = NULL;
3184
3185 if (vlan_id && (drv->capa.flags & WPA_DRIVER_FLAGS_VLAN_OFFLOAD)) {
3186 wpa_printf(MSG_DEBUG, "nl80211: set_key default - VLAN ID %d",
3187 vlan_id);
3188 if (nla_put_u16(msg, NL80211_ATTR_VLAN_ID, vlan_id))
3189 goto fail;
3190 }
3191
3192 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3193 if (ret == -ENOENT)
3194 ret = 0;
3195 if (ret)
3196 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; "
3197 "err=%d %s)", ret, strerror(-ret));
3198 return ret;
3199
3200 fail:
3201 nl80211_nlmsg_clear(msg);
3202 nlmsg_free(msg);
3203 fail2:
3204 nl80211_nlmsg_clear(key_msg);
3205 nlmsg_free(key_msg);
3206 return -ENOBUFS;
3207 }
3208
3209
3210 static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg,
3211 int key_idx, int defkey,
3212 const u8 *seq, size_t seq_len,
3213 const u8 *key, size_t key_len)
3214 {
3215 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY);
3216 u32 suite;
3217
3218 if (!key_attr)
3219 return -1;
3220
3221 suite = wpa_alg_to_cipher_suite(alg, key_len);
3222 if (!suite)
3223 return -1;
3224
3225 if (defkey && alg == WPA_ALG_IGTK) {
3226 if (nla_put_flag(msg, NL80211_KEY_DEFAULT_MGMT))
3227 return -1;
3228 } else if (defkey) {
3229 if (nla_put_flag(msg, NL80211_KEY_DEFAULT))
3230 return -1;
3231 }
3232
3233 if (nla_put_u8(msg, NL80211_KEY_IDX, key_idx) ||
3234 nla_put_u32(msg, NL80211_KEY_CIPHER, suite) ||
3235 (seq && seq_len &&
3236 nla_put(msg, NL80211_KEY_SEQ, seq_len, seq)) ||
3237 nla_put(msg, NL80211_KEY_DATA, key_len, key))
3238 return -1;
3239
3240 nla_nest_end(msg, key_attr);
3241
3242 return 0;
3243 }
3244
3245
3246 static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params,
3247 struct nl_msg *msg)
3248 {
3249 int i, privacy = 0;
3250 struct nlattr *nl_keys, *nl_key;
3251
3252 for (i = 0; i < 4; i++) {
3253 if (!params->wep_key[i])
3254 continue;
3255 privacy = 1;
3256 break;
3257 }
3258 if (params->wps == WPS_MODE_PRIVACY)
3259 privacy = 1;
3260 if (params->pairwise_suite &&
3261 params->pairwise_suite != WPA_CIPHER_NONE)
3262 privacy = 1;
3263
3264 if (!privacy)
3265 return 0;
3266
3267 if (nla_put_flag(msg, NL80211_ATTR_PRIVACY))
3268 return -ENOBUFS;
3269
3270 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS);
3271 if (!nl_keys)
3272 return -ENOBUFS;
3273
3274 for (i = 0; i < 4; i++) {
3275 if (!params->wep_key[i])
3276 continue;
3277
3278 nl_key = nla_nest_start(msg, i);
3279 if (!nl_key ||
3280 nla_put(msg, NL80211_KEY_DATA, params->wep_key_len[i],
3281 params->wep_key[i]) ||
3282 nla_put_u32(msg, NL80211_KEY_CIPHER,
3283 params->wep_key_len[i] == 5 ?
3284 RSN_CIPHER_SUITE_WEP40 :
3285 RSN_CIPHER_SUITE_WEP104) ||
3286 nla_put_u8(msg, NL80211_KEY_IDX, i) ||
3287 (i == params->wep_tx_keyidx &&
3288 nla_put_flag(msg, NL80211_KEY_DEFAULT)))
3289 return -ENOBUFS;
3290
3291 nla_nest_end(msg, nl_key);
3292 }
3293 nla_nest_end(msg, nl_keys);
3294
3295 return 0;
3296 }
3297
3298
3299 int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
3300 const u8 *addr, int cmd, u16 reason_code,
3301 int local_state_change,
3302 struct nl_sock *nl_connect)
3303 {
3304 int ret;
3305 struct nl_msg *msg;
3306
3307 if (!(msg = nl80211_drv_msg(drv, 0, cmd)) ||
3308 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code) ||
3309 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
3310 (local_state_change &&
3311 nla_put_flag(msg, NL80211_ATTR_LOCAL_STATE_CHANGE))) {
3312 nlmsg_free(msg);
3313 return -1;
3314 }
3315
3316 if (nl_connect)
3317 ret = send_and_recv(drv->global, nl_connect, msg, NULL, NULL);
3318 else
3319 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3320 if (ret) {
3321 wpa_dbg(drv->ctx, MSG_DEBUG,
3322 "nl80211: MLME command failed: reason=%u ret=%d (%s)",
3323 reason_code, ret, strerror(-ret));
3324 }
3325 return ret;
3326 }
3327
3328
3329 static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv,
3330 u16 reason_code,
3331 struct nl_sock *nl_connect)
3332 {
3333 int ret;
3334 int drv_associated = drv->associated;
3335
3336 wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code);
3337 nl80211_mark_disconnected(drv);
3338 /* Disconnect command doesn't need BSSID - it uses cached value */
3339 ret = wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT,
3340 reason_code, 0, nl_connect);
3341 /*
3342 * For locally generated disconnect, supplicant already generates a
3343 * DEAUTH event, so ignore the event from NL80211.
3344 */
3345 drv->ignore_next_local_disconnect = drv_associated && (ret == 0);
3346
3347 return ret;
3348 }
3349
3350
3351 static int wpa_driver_nl80211_deauthenticate(struct i802_bss *bss,
3352 const u8 *addr, u16 reason_code)
3353 {
3354 struct wpa_driver_nl80211_data *drv = bss->drv;
3355 int ret;
3356 int drv_associated = drv->associated;
3357
3358 if (drv->nlmode == NL80211_IFTYPE_ADHOC) {
3359 nl80211_mark_disconnected(drv);
3360 return nl80211_leave_ibss(drv, 1);
3361 }
3362 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) {
3363 struct nl_sock *nl_connect = NULL;
3364
3365 if (bss->use_nl_connect)
3366 nl_connect = bss->nl_connect;
3367 return wpa_driver_nl80211_disconnect(drv, reason_code,
3368 nl_connect);
3369 }
3370 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)",
3371 __func__, MAC2STR(addr), reason_code);
3372 nl80211_mark_disconnected(drv);
3373 ret = wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE,
3374 reason_code, 0, NULL);
3375 /*
3376 * For locally generated deauthenticate, supplicant already generates a
3377 * DEAUTH event, so ignore the event from NL80211.
3378 */
3379 drv->ignore_next_local_deauth = drv_associated && (ret == 0);
3380
3381 return ret;
3382 }
3383
3384
3385 static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv,
3386 struct wpa_driver_auth_params *params)
3387 {
3388 int i;
3389
3390 drv->auth_freq = params->freq;
3391 drv->auth_alg = params->auth_alg;
3392 drv->auth_wep_tx_keyidx = params->wep_tx_keyidx;
3393 drv->auth_local_state_change = params->local_state_change;
3394 drv->auth_p2p = params->p2p;
3395
3396 if (params->bssid)
3397 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN);
3398 else
3399 os_memset(drv->auth_bssid_, 0, ETH_ALEN);
3400
3401 if (params->ssid) {
3402 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len);
3403 drv->auth_ssid_len = params->ssid_len;
3404 } else
3405 drv->auth_ssid_len = 0;
3406
3407
3408 os_free(drv->auth_ie);
3409 drv->auth_ie = NULL;
3410 drv->auth_ie_len = 0;
3411 if (params->ie) {
3412 drv->auth_ie = os_malloc(params->ie_len);
3413 if (drv->auth_ie) {
3414 os_memcpy(drv->auth_ie, params->ie, params->ie_len);
3415 drv->auth_ie_len = params->ie_len;
3416 }
3417 }
3418
3419 for (i = 0; i < 4; i++) {
3420 if (params->wep_key[i] && params->wep_key_len[i] &&
3421 params->wep_key_len[i] <= 16) {
3422 os_memcpy(drv->auth_wep_key[i], params->wep_key[i],
3423 params->wep_key_len[i]);
3424 drv->auth_wep_key_len[i] = params->wep_key_len[i];
3425 } else
3426 drv->auth_wep_key_len[i] = 0;
3427 }
3428 }
3429
3430
3431 static void nl80211_unmask_11b_rates(struct i802_bss *bss)
3432 {
3433 struct wpa_driver_nl80211_data *drv = bss->drv;
3434
3435 if (is_p2p_net_interface(drv->nlmode) || !drv->disabled_11b_rates)
3436 return;
3437
3438 /*
3439 * Looks like we failed to unmask 11b rates previously. This could
3440 * happen, e.g., if the interface was down at the point in time when a
3441 * P2P group was terminated.
3442 */
3443 wpa_printf(MSG_DEBUG,
3444 "nl80211: Interface %s mode is for non-P2P, but 11b rates were disabled - re-enable them",
3445 bss->ifname);
3446 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
3447 }
3448
3449
3450 static enum nl80211_auth_type get_nl_auth_type(int wpa_auth_alg)
3451 {
3452 if (wpa_auth_alg & WPA_AUTH_ALG_OPEN)
3453 return NL80211_AUTHTYPE_OPEN_SYSTEM;
3454 if (wpa_auth_alg & WPA_AUTH_ALG_SHARED)
3455 return NL80211_AUTHTYPE_SHARED_KEY;
3456 if (wpa_auth_alg & WPA_AUTH_ALG_LEAP)
3457 return NL80211_AUTHTYPE_NETWORK_EAP;
3458 if (wpa_auth_alg & WPA_AUTH_ALG_FT)
3459 return NL80211_AUTHTYPE_FT;
3460 if (wpa_auth_alg & WPA_AUTH_ALG_SAE)
3461 return NL80211_AUTHTYPE_SAE;
3462 if (wpa_auth_alg & WPA_AUTH_ALG_FILS)
3463 return NL80211_AUTHTYPE_FILS_SK;
3464 if (wpa_auth_alg & WPA_AUTH_ALG_FILS_SK_PFS)
3465 return NL80211_AUTHTYPE_FILS_SK_PFS;
3466
3467 return NL80211_AUTHTYPE_MAX;
3468 }
3469
3470
3471 static int wpa_driver_nl80211_authenticate(
3472 struct i802_bss *bss, struct wpa_driver_auth_params *params)
3473 {
3474 struct wpa_driver_nl80211_data *drv = bss->drv;
3475 int ret = -1, i;
3476 struct nl_msg *msg;
3477 enum nl80211_auth_type type;
3478 enum nl80211_iftype nlmode;
3479 int count = 0;
3480 int is_retry;
3481 struct wpa_driver_set_key_params p;
3482
3483 nl80211_unmask_11b_rates(bss);
3484
3485 is_retry = drv->retry_auth;
3486 drv->retry_auth = 0;
3487 drv->ignore_deauth_event = 0;
3488
3489 nl80211_mark_disconnected(drv);
3490 os_memset(drv->auth_bssid, 0, ETH_ALEN);
3491 if (params->bssid)
3492 os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN);
3493 else
3494 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN);
3495 /* FIX: IBSS mode */
3496 nlmode = params->p2p ?
3497 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
3498 if (drv->nlmode != nlmode &&
3499 wpa_driver_nl80211_set_mode(bss, nlmode) < 0)
3500 return -1;
3501
3502 retry:
3503 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)",
3504 drv->ifindex);
3505
3506 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_AUTHENTICATE);
3507 if (!msg)
3508 goto fail;
3509
3510 os_memset(&p, 0, sizeof(p));
3511 p.ifname = bss->ifname;
3512 p.alg = WPA_ALG_WEP;
3513 for (i = 0; i < 4; i++) {
3514 if (!params->wep_key[i])
3515 continue;
3516 p.key_idx = i;
3517 p.set_tx = i == params->wep_tx_keyidx;
3518 p.key = params->wep_key[i];
3519 p.key_len = params->wep_key_len[i];
3520 wpa_driver_nl80211_set_key(bss, &p);
3521 if (params->wep_tx_keyidx != i)
3522 continue;
3523 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0,
3524 params->wep_key[i], params->wep_key_len[i]))
3525 goto fail;
3526 }
3527
3528 if (params->bssid) {
3529 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
3530 MAC2STR(params->bssid));
3531 if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid))
3532 goto fail;
3533 }
3534 if (params->freq) {
3535 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
3536 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq))
3537 goto fail;
3538 }
3539 if (params->ssid) {
3540 wpa_printf(MSG_DEBUG, " * SSID=%s",
3541 wpa_ssid_txt(params->ssid, params->ssid_len));
3542 if (nla_put(msg, NL80211_ATTR_SSID, params->ssid_len,
3543 params->ssid))
3544 goto fail;
3545 }
3546 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len);
3547 if (params->ie &&
3548 nla_put(msg, NL80211_ATTR_IE, params->ie_len, params->ie))
3549 goto fail;
3550 if (params->auth_data) {
3551 wpa_hexdump(MSG_DEBUG, " * auth_data", params->auth_data,
3552 params->auth_data_len);
3553 if (nla_put(msg, NL80211_ATTR_SAE_DATA, params->auth_data_len,
3554 params->auth_data))
3555 goto fail;
3556 }
3557 type = get_nl_auth_type(params->auth_alg);
3558 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
3559 if (type == NL80211_AUTHTYPE_MAX ||
3560 nla_put_u32(msg, NL80211_ATTR_AUTH_TYPE, type))
3561 goto fail;
3562 if (params->local_state_change) {
3563 wpa_printf(MSG_DEBUG, " * Local state change only");
3564 if (nla_put_flag(msg, NL80211_ATTR_LOCAL_STATE_CHANGE))
3565 goto fail;
3566 }
3567
3568 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3569 msg = NULL;
3570 if (ret) {
3571 wpa_dbg(drv->ctx, MSG_DEBUG,
3572 "nl80211: MLME command failed (auth): count=%d ret=%d (%s)",
3573 count, ret, strerror(-ret));
3574 count++;
3575 if ((ret == -EALREADY || ret == -EEXIST) && count == 1 &&
3576 params->bssid && !params->local_state_change) {
3577 /*
3578 * mac80211 does not currently accept new
3579 * authentication if we are already authenticated. As a
3580 * workaround, force deauthentication and try again.
3581 */
3582 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication "
3583 "after forced deauthentication");
3584 drv->ignore_deauth_event = 1;
3585 wpa_driver_nl80211_deauthenticate(
3586 bss, params->bssid,
3587 WLAN_REASON_PREV_AUTH_NOT_VALID);
3588 nlmsg_free(msg);
3589 goto retry;
3590 }
3591
3592 if (ret == -ENOENT && params->freq && !is_retry) {
3593 /*
3594 * cfg80211 has likely expired the BSS entry even
3595 * though it was previously available in our internal
3596 * BSS table. To recover quickly, start a single
3597 * channel scan on the specified channel.
3598 */
3599 struct wpa_driver_scan_params scan;
3600 int freqs[2];
3601
3602 os_memset(&scan, 0, sizeof(scan));
3603 scan.num_ssids = 1;
3604 if (params->ssid) {
3605 scan.ssids[0].ssid = params->ssid;
3606 scan.ssids[0].ssid_len = params->ssid_len;
3607 }
3608 freqs[0] = params->freq;
3609 freqs[1] = 0;
3610 scan.freqs = freqs;
3611 wpa_printf(MSG_DEBUG, "nl80211: Trigger single "
3612 "channel scan to refresh cfg80211 BSS "
3613 "entry");
3614 ret = wpa_driver_nl80211_scan(bss, &scan);
3615 if (ret == 0) {
3616 nl80211_copy_auth_params(drv, params);
3617 drv->scan_for_auth = 1;
3618 }
3619 } else if (is_retry) {
3620 /*
3621 * Need to indicate this with an event since the return
3622 * value from the retry is not delivered to core code.
3623 */
3624 union wpa_event_data event;
3625 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry "
3626 "failed");
3627 os_memset(&event, 0, sizeof(event));
3628 os_memcpy(event.timeout_event.addr, drv->auth_bssid_,
3629 ETH_ALEN);
3630 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT,
3631 &event);
3632 }
3633 } else {
3634 wpa_printf(MSG_DEBUG,
3635 "nl80211: Authentication request send successfully");
3636 }
3637
3638 fail:
3639 nlmsg_free(msg);
3640 return ret;
3641 }
3642
3643
3644 int wpa_driver_nl80211_authenticate_retry(struct wpa_driver_nl80211_data *drv)
3645 {
3646 struct wpa_driver_auth_params params;
3647 struct i802_bss *bss = drv->first_bss;
3648 int i;
3649
3650 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again");
3651
3652 os_memset(&params, 0, sizeof(params));
3653 params.freq = drv->auth_freq;
3654 params.auth_alg = drv->auth_alg;
3655 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx;
3656 params.local_state_change = drv->auth_local_state_change;
3657 params.p2p = drv->auth_p2p;
3658
3659 if (!is_zero_ether_addr(drv->auth_bssid_))
3660 params.bssid = drv->auth_bssid_;
3661
3662 if (drv->auth_ssid_len) {
3663 params.ssid = drv->auth_ssid;
3664 params.ssid_len = drv->auth_ssid_len;
3665 }
3666
3667 params.ie = drv->auth_ie;
3668 params.ie_len = drv->auth_ie_len;
3669
3670 for (i = 0; i < 4; i++) {
3671 if (drv->auth_wep_key_len[i]) {
3672 params.wep_key[i] = drv->auth_wep_key[i];
3673 params.wep_key_len[i] = drv->auth_wep_key_len[i];
3674 }
3675 }
3676
3677 drv->retry_auth = 1;
3678 return wpa_driver_nl80211_authenticate(bss, &params);
3679 }
3680
3681
3682 static int wpa_driver_nl80211_send_mlme(struct i802_bss *bss, const u8 *data,
3683 size_t data_len, int noack,
3684 unsigned int freq, int no_cck,
3685 int offchanok,
3686 unsigned int wait_time,
3687 const u16 *csa_offs,
3688 size_t csa_offs_len, int no_encrypt)
3689 {
3690 struct wpa_driver_nl80211_data *drv = bss->drv;
3691 struct ieee80211_mgmt *mgmt;
3692 int encrypt = !no_encrypt;
3693 u16 fc;
3694 int use_cookie = 1;
3695 int res;
3696
3697 mgmt = (struct ieee80211_mgmt *) data;
3698 fc = le_to_host16(mgmt->frame_control);
3699 wpa_printf(MSG_DEBUG, "nl80211: send_mlme - da= " MACSTR
3700 " noack=%d freq=%u no_cck=%d offchanok=%d wait_time=%u no_encrypt=%d fc=0x%x (%s) nlmode=%d",
3701 MAC2STR(mgmt->da), noack, freq, no_cck, offchanok, wait_time,
3702 no_encrypt, fc, fc2str(fc), drv->nlmode);
3703
3704 if ((is_sta_interface(drv->nlmode) ||
3705 drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) &&
3706 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
3707 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) {
3708 /*
3709 * The use of last_mgmt_freq is a bit of a hack,
3710 * but it works due to the single-threaded nature
3711 * of wpa_supplicant.
3712 */
3713 if (freq == 0) {
3714 wpa_printf(MSG_DEBUG, "nl80211: Use last_mgmt_freq=%d",
3715 drv->last_mgmt_freq);
3716 freq = drv->last_mgmt_freq;
3717 }
3718 wait_time = 0;
3719 use_cookie = 0;
3720 no_cck = 1;
3721 offchanok = 1;
3722 goto send_frame_cmd;
3723 }
3724
3725 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) {
3726 if (freq == 0) {
3727 wpa_printf(MSG_DEBUG, "nl80211: Use bss->freq=%d",
3728 bss->freq);
3729 freq = bss->freq;
3730 }
3731 if ((int) freq == bss->freq)
3732 wait_time = 0;
3733 goto send_frame_cmd;
3734 }
3735
3736 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
3737 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) {
3738 /*
3739 * Only one of the authentication frame types is encrypted.
3740 * In order for static WEP encryption to work properly (i.e.,
3741 * to not encrypt the frame), we need to tell mac80211 about
3742 * the frames that must not be encrypted.
3743 */
3744 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
3745 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction);
3746 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3)
3747 encrypt = 0;
3748 }
3749
3750 if (freq == 0 && drv->nlmode == NL80211_IFTYPE_STATION &&
3751 (drv->capa.flags & WPA_DRIVER_FLAGS_SAE) &&
3752 !(drv->capa.flags & WPA_DRIVER_FLAGS_SME) &&
3753 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
3754 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) {
3755 freq = nl80211_get_assoc_freq(drv);
3756 wpa_printf(MSG_DEBUG,
3757 "nl80211: send_mlme - Use assoc_freq=%u for external auth",
3758 freq);
3759 }
3760
3761 if (freq == 0 && drv->nlmode == NL80211_IFTYPE_ADHOC) {
3762 freq = nl80211_get_assoc_freq(drv);
3763 wpa_printf(MSG_DEBUG,
3764 "nl80211: send_mlme - Use assoc_freq=%u for IBSS",
3765 freq);
3766 }
3767 if (freq == 0) {
3768 wpa_printf(MSG_DEBUG, "nl80211: send_mlme - Use bss->freq=%u",
3769 bss->freq);
3770 freq = bss->freq;
3771 }
3772
3773 if (drv->use_monitor) {
3774 wpa_printf(MSG_DEBUG,
3775 "nl80211: send_frame(freq=%u bss->freq=%u) -> send_monitor",
3776 freq, bss->freq);
3777 return nl80211_send_monitor(drv, data, data_len, encrypt,
3778 noack);
3779 }
3780
3781 if (noack || WLAN_FC_GET_TYPE(fc) != WLAN_FC_TYPE_MGMT ||
3782 WLAN_FC_GET_STYPE(fc) != WLAN_FC_STYPE_ACTION)
3783 use_cookie = 0;
3784 send_frame_cmd:
3785 #ifdef CONFIG_TESTING_OPTIONS
3786 if (no_encrypt && !encrypt && !drv->use_monitor) {
3787 wpa_printf(MSG_DEBUG,
3788 "nl80211: Request to send an unencrypted frame - use a monitor interface for this");
3789 if (nl80211_create_monitor_interface(drv) < 0)
3790 return -1;
3791 res = nl80211_send_monitor(drv, data, data_len, encrypt,
3792 noack);
3793 nl80211_remove_monitor_interface(drv);
3794 return res;
3795 }
3796 #endif /* CONFIG_TESTING_OPTIONS */
3797
3798 wpa_printf(MSG_DEBUG, "nl80211: send_mlme -> send_frame_cmd");
3799 res = nl80211_send_frame_cmd(bss, freq, wait_time, data, data_len,
3800 use_cookie, no_cck, noack, offchanok,
3801 csa_offs, csa_offs_len);
3802
3803 return res;
3804 }
3805
3806
3807 static int nl80211_put_basic_rates(struct nl_msg *msg, const int *basic_rates)
3808 {
3809 u8 rates[NL80211_MAX_SUPP_RATES];
3810 u8 rates_len = 0;
3811 int i;
3812
3813 if (!basic_rates)
3814 return 0;
3815
3816 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; i++)
3817 rates[rates_len++] = basic_rates[i] / 5;
3818
3819 return nla_put(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates);
3820 }
3821
3822
3823 static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble,
3824 int slot, int ht_opmode, int ap_isolate,
3825 const int *basic_rates)
3826 {
3827 struct wpa_driver_nl80211_data *drv = bss->drv;
3828 struct nl_msg *msg;
3829
3830 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_BSS)) ||
3831 (cts >= 0 &&
3832 nla_put_u8(msg, NL80211_ATTR_BSS_CTS_PROT, cts)) ||
3833 (preamble >= 0 &&
3834 nla_put_u8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble)) ||
3835 (slot >= 0 &&
3836 nla_put_u8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot)) ||
3837 (ht_opmode >= 0 &&
3838 nla_put_u16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode)) ||
3839 (ap_isolate >= 0 &&
3840 nla_put_u8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate)) ||
3841 nl80211_put_basic_rates(msg, basic_rates)) {
3842 nlmsg_free(msg);
3843 return -ENOBUFS;
3844 }
3845
3846 return send_and_recv_msgs(drv, msg, NULL, NULL);
3847 }
3848
3849
3850 static int wpa_driver_nl80211_set_acl(void *priv,
3851 struct hostapd_acl_params *params)
3852 {
3853 struct i802_bss *bss = priv;
3854 struct wpa_driver_nl80211_data *drv = bss->drv;
3855 struct nl_msg *msg;
3856 struct nl_msg *acl;
3857 unsigned int i;
3858 int ret;
3859
3860 if (!(drv->capa.max_acl_mac_addrs))
3861 return -ENOTSUP;
3862
3863 if (params->num_mac_acl > drv->capa.max_acl_mac_addrs)
3864 return -ENOTSUP;
3865
3866 wpa_printf(MSG_DEBUG, "nl80211: Set %s ACL (num_mac_acl=%u)",
3867 params->acl_policy ? "Accept" : "Deny", params->num_mac_acl);
3868
3869 acl = nlmsg_alloc();
3870 if (!acl)
3871 return -ENOMEM;
3872 for (i = 0; i < params->num_mac_acl; i++) {
3873 if (nla_put(acl, i + 1, ETH_ALEN, params->mac_acl[i].addr)) {
3874 nlmsg_free(acl);
3875 return -ENOMEM;
3876 }
3877 }
3878
3879 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_SET_MAC_ACL)) ||
3880 nla_put_u32(msg, NL80211_ATTR_ACL_POLICY, params->acl_policy ?
3881 NL80211_ACL_POLICY_DENY_UNLESS_LISTED :
3882 NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED) ||
3883 nla_put_nested(msg, NL80211_ATTR_MAC_ADDRS, acl)) {
3884 nlmsg_free(msg);
3885 nlmsg_free(acl);
3886 return -ENOMEM;
3887 }
3888 nlmsg_free(acl);
3889
3890 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3891 if (ret) {
3892 wpa_printf(MSG_DEBUG, "nl80211: Failed to set MAC ACL: %d (%s)",
3893 ret, strerror(-ret));
3894 }
3895
3896 return ret;
3897 }
3898
3899
3900 static int nl80211_put_beacon_int(struct nl_msg *msg, int beacon_int)
3901 {
3902 if (beacon_int > 0) {
3903 wpa_printf(MSG_DEBUG, " * beacon_int=%d", beacon_int);
3904 return nla_put_u32(msg, NL80211_ATTR_BEACON_INTERVAL,
3905 beacon_int);
3906 }
3907
3908 return 0;
3909 }
3910
3911
3912 static int nl80211_put_dtim_period(struct nl_msg *msg, int dtim_period)
3913 {
3914 if (dtim_period > 0) {
3915 wpa_printf(MSG_DEBUG, " * dtim_period=%d", dtim_period);
3916 return nla_put_u32(msg, NL80211_ATTR_DTIM_PERIOD, dtim_period);
3917 }
3918
3919 return 0;
3920 }
3921
3922
3923 #ifdef CONFIG_MESH
3924 static int nl80211_set_mesh_config(void *priv,
3925 struct wpa_driver_mesh_bss_params *params)
3926 {
3927 struct i802_bss *bss = priv;
3928 struct wpa_driver_nl80211_data *drv = bss->drv;
3929 struct nl_msg *msg;
3930 int ret;
3931
3932 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_SET_MESH_CONFIG);
3933 if (!msg)
3934 return -1;
3935
3936 ret = nl80211_put_mesh_config(msg, params);
3937 if (ret < 0) {
3938 nlmsg_free(msg);
3939 return ret;
3940 }
3941
3942 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3943 if (ret) {
3944 wpa_printf(MSG_ERROR,
3945 "nl80211: Mesh config set failed: %d (%s)",
3946 ret, strerror(-ret));
3947 return ret;
3948 }
3949 return 0;
3950 }
3951 #endif /* CONFIG_MESH */
3952
3953
3954 static int nl80211_put_beacon_rate(struct nl_msg *msg, const u64 flags,
3955 struct wpa_driver_ap_params *params)
3956 {
3957 struct nlattr *bands, *band;
3958 struct nl80211_txrate_vht vht_rate;
3959
3960 if (!params->freq ||
3961 (params->beacon_rate == 0 &&
3962 params->rate_type == BEACON_RATE_LEGACY))
3963 return 0;
3964
3965 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES);
3966 if (!bands)
3967 return -1;
3968
3969 switch (params->freq->mode) {
3970 case HOSTAPD_MODE_IEEE80211B:
3971 case HOSTAPD_MODE_IEEE80211G:
3972 band = nla_nest_start(msg, NL80211_BAND_2GHZ);
3973 break;
3974 case HOSTAPD_MODE_IEEE80211A:
3975 band = nla_nest_start(msg, NL80211_BAND_5GHZ);
3976 break;
3977 case HOSTAPD_MODE_IEEE80211AD:
3978 band = nla_nest_start(msg, NL80211_BAND_60GHZ);
3979 break;
3980 default:
3981 return 0;
3982 }
3983
3984 if (!band)
3985 return -1;
3986
3987 os_memset(&vht_rate, 0, sizeof(vht_rate));
3988
3989 switch (params->rate_type) {
3990 case BEACON_RATE_LEGACY:
3991 if (!(flags & WPA_DRIVER_FLAGS_BEACON_RATE_LEGACY)) {
3992 wpa_printf(MSG_INFO,
3993 "nl80211: Driver does not support setting Beacon frame rate (legacy)");
3994 return -1;
3995 }
3996
3997 if (nla_put_u8(msg, NL80211_TXRATE_LEGACY,
3998 (u8) params->beacon_rate / 5) ||
3999 nla_put(msg, NL80211_TXRATE_HT, 0, NULL) ||
4000 (params->freq->vht_enabled &&
4001 nla_put(msg, NL80211_TXRATE_VHT, sizeof(vht_rate),
4002 &vht_rate)))
4003 return -1;
4004
4005 wpa_printf(MSG_DEBUG, " * beacon_rate = legacy:%u (* 100 kbps)",
4006 params->beacon_rate);
4007 break;
4008 case BEACON_RATE_HT:
4009 if (!(flags & WPA_DRIVER_FLAGS_BEACON_RATE_HT)) {
4010 wpa_printf(MSG_INFO,
4011 "nl80211: Driver does not support setting Beacon frame rate (HT)");
4012 return -1;
4013 }
4014 if (nla_put(msg, NL80211_TXRATE_LEGACY, 0, NULL) ||
4015 nla_put_u8(msg, NL80211_TXRATE_HT, params->beacon_rate) ||
4016 (params->freq->vht_enabled &&
4017 nla_put(msg, NL80211_TXRATE_VHT, sizeof(vht_rate),
4018 &vht_rate)))
4019 return -1;
4020 wpa_printf(MSG_DEBUG, " * beacon_rate = HT-MCS %u",
4021 params->beacon_rate);
4022 break;
4023 case BEACON_RATE_VHT:
4024 if (!(flags & WPA_DRIVER_FLAGS_BEACON_RATE_VHT)) {
4025 wpa_printf(MSG_INFO,
4026 "nl80211: Driver does not support setting Beacon frame rate (VHT)");
4027 return -1;
4028 }
4029 vht_rate.mcs[0] = BIT(params->beacon_rate);
4030 if (nla_put(msg, NL80211_TXRATE_LEGACY, 0, NULL))
4031 return -1;
4032 if (nla_put(msg, NL80211_TXRATE_HT, 0, NULL))
4033 return -1;
4034 if (nla_put(msg, NL80211_TXRATE_VHT, sizeof(vht_rate),
4035 &vht_rate))
4036 return -1;
4037 wpa_printf(MSG_DEBUG, " * beacon_rate = VHT-MCS %u",
4038 params->beacon_rate);
4039 break;
4040 }
4041
4042 nla_nest_end(msg, band);
4043 nla_nest_end(msg, bands);
4044
4045 return 0;
4046 }
4047
4048
4049 static int nl80211_set_multicast_to_unicast(struct i802_bss *bss,
4050 int multicast_to_unicast)
4051 {
4052 struct wpa_driver_nl80211_data *drv = bss->drv;
4053 struct nl_msg *msg;
4054 int ret;
4055
4056 msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_MULTICAST_TO_UNICAST);
4057 if (!msg ||
4058 (multicast_to_unicast &&
4059 nla_put_flag(msg, NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED))) {
4060 wpa_printf(MSG_ERROR,
4061 "nl80211: Failed to build NL80211_CMD_SET_MULTICAST_TO_UNICAST msg for %s",
4062 bss->ifname);
4063 nlmsg_free(msg);
4064 return -ENOBUFS;
4065 }
4066
4067 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4068
4069 switch (ret) {
4070 case 0:
4071 wpa_printf(MSG_DEBUG,
4072 "nl80211: multicast to unicast %s on interface %s",
4073 multicast_to_unicast ? "enabled" : "disabled",
4074 bss->ifname);
4075 break;
4076 case -EOPNOTSUPP:
4077 if (!multicast_to_unicast)
4078 break;
4079 wpa_printf(MSG_INFO,
4080 "nl80211: multicast to unicast not supported on interface %s",
4081 bss->ifname);
4082 break;
4083 default:
4084 wpa_printf(MSG_ERROR,
4085 "nl80211: %s multicast to unicast failed with %d (%s) on interface %s",
4086 multicast_to_unicast ? "enabling" : "disabling",
4087 ret, strerror(-ret), bss->ifname);
4088 break;
4089 }
4090
4091 return ret;
4092 }
4093
4094
4095 static int wpa_driver_nl80211_set_ap(void *priv,
4096 struct wpa_driver_ap_params *params)
4097 {
4098 struct i802_bss *bss = priv;
4099 struct wpa_driver_nl80211_data *drv = bss->drv;
4100 struct nl_msg *msg;
4101 u8 cmd = NL80211_CMD_NEW_BEACON;
4102 int ret = -ENOBUFS;
4103 int beacon_set;
4104 int num_suites;
4105 int smps_mode;
4106 u32 suites[10], suite;
4107 u32 ver;
4108 #ifdef CONFIG_MESH
4109 struct wpa_driver_mesh_bss_params mesh_params;
4110 #endif /* CONFIG_MESH */
4111
4112 beacon_set = params->reenable ? 0 : bss->beacon_set;
4113
4114 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)",
4115 beacon_set);
4116 if (beacon_set)
4117 cmd = NL80211_CMD_SET_BEACON;
4118 else if (!drv->device_ap_sme && !drv->use_monitor &&
4119 !nl80211_get_wiphy_data_ap(bss))
4120 return -ENOBUFS;
4121
4122 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon head",
4123 params->head, params->head_len);
4124 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon tail",
4125 params->tail, params->tail_len);
4126 wpa_printf(MSG_DEBUG, "nl80211: ifindex=%d", bss->ifindex);
4127 wpa_printf(MSG_DEBUG, "nl80211: beacon_int=%d", params->beacon_int);
4128 wpa_printf(MSG_DEBUG, "nl80211: beacon_rate=%u", params->beacon_rate);
4129 wpa_printf(MSG_DEBUG, "nl80211: rate_type=%d", params->rate_type);
4130 wpa_printf(MSG_DEBUG, "nl80211: dtim_period=%d", params->dtim_period);
4131 wpa_printf(MSG_DEBUG, "nl80211: ssid=%s",
4132 wpa_ssid_txt(params->ssid, params->ssid_len));
4133 if (!(msg = nl80211_bss_msg(bss, 0, cmd)) ||
4134 nla_put(msg, NL80211_ATTR_BEACON_HEAD, params->head_len,
4135 params->head) ||
4136 nla_put(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len,
4137 params->tail) ||
4138 nl80211_put_beacon_int(msg, params->beacon_int) ||
4139 nl80211_put_beacon_rate(msg, drv->capa.flags, params) ||
4140 nl80211_put_dtim_period(msg, params->dtim_period) ||
4141 nla_put(msg, NL80211_ATTR_SSID, params->ssid_len, params->ssid))
4142 goto fail;
4143 if (params->proberesp && params->proberesp_len) {
4144 wpa_hexdump(MSG_DEBUG, "nl80211: proberesp (offload)",
4145 params->proberesp, params->proberesp_len);
4146 if (nla_put(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len,
4147 params->proberesp))
4148 goto fail;
4149 }
4150 switch (params->hide_ssid) {
4151 case NO_SSID_HIDING:
4152 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID not in use");
4153 if (nla_put_u32(msg, NL80211_ATTR_HIDDEN_SSID,
4154 NL80211_HIDDEN_SSID_NOT_IN_USE))
4155 goto fail;
4156 break;
4157 case HIDDEN_SSID_ZERO_LEN:
4158 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero len");
4159 if (nla_put_u32(msg, NL80211_ATTR_HIDDEN_SSID,
4160 NL80211_HIDDEN_SSID_ZERO_LEN))
4161 goto fail;
4162 break;
4163 case HIDDEN_SSID_ZERO_CONTENTS:
4164 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero contents");
4165 if (nla_put_u32(msg, NL80211_ATTR_HIDDEN_SSID,
4166 NL80211_HIDDEN_SSID_ZERO_CONTENTS))
4167 goto fail;
4168 break;
4169 }
4170 wpa_printf(MSG_DEBUG, "nl80211: privacy=%d", params->privacy);
4171 if (params->privacy &&
4172 nla_put_flag(msg, NL80211_ATTR_PRIVACY))
4173 goto fail;
4174 wpa_printf(MSG_DEBUG, "nl80211: auth_algs=0x%x", params->auth_algs);
4175 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) ==
4176 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) {
4177 /* Leave out the attribute */
4178 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED) {
4179 if (nla_put_u32(msg, NL80211_ATTR_AUTH_TYPE,
4180 NL80211_AUTHTYPE_SHARED_KEY))
4181 goto fail;
4182 } else {
4183 if (nla_put_u32(msg, NL80211_ATTR_AUTH_TYPE,
4184 NL80211_AUTHTYPE_OPEN_SYSTEM))
4185 goto fail;
4186 }
4187
4188 wpa_printf(MSG_DEBUG, "nl80211: wpa_version=0x%x", params->wpa_version);
4189 ver = 0;
4190 if (params->wpa_version & WPA_PROTO_WPA)
4191 ver |= NL80211_WPA_VERSION_1;
4192 if (params->wpa_version & WPA_PROTO_RSN)
4193 ver |= NL80211_WPA_VERSION_2;
4194 if (ver &&
4195 nla_put_u32(msg, NL80211_ATTR_WPA_VERSIONS, ver))
4196 goto fail;
4197
4198 wpa_printf(MSG_DEBUG, "nl80211: key_mgmt_suites=0x%x",
4199 params->key_mgmt_suites);
4200 num_suites = 0;
4201 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X)
4202 suites[num_suites++] = RSN_AUTH_KEY_MGMT_UNSPEC_802_1X;
4203 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK)
4204 suites[num_suites++] = RSN_AUTH_KEY_MGMT_PSK_OVER_802_1X;
4205 if (num_suites &&
4206 nla_put(msg, NL80211_ATTR_AKM_SUITES, num_suites * sizeof(u32),
4207 suites))
4208 goto fail;
4209
4210 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
4211 (!params->pairwise_ciphers ||
4212 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40)) &&
4213 (nla_put_u16(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE, ETH_P_PAE) ||
4214 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT)))
4215 goto fail;
4216
4217 if (drv->device_ap_sme &&
4218 (params->key_mgmt_suites & WPA_KEY_MGMT_SAE) &&
4219 nla_put_flag(msg, NL80211_ATTR_EXTERNAL_AUTH_SUPPORT))
4220 goto fail;
4221
4222 wpa_printf(MSG_DEBUG, "nl80211: pairwise_ciphers=0x%x",
4223 params->pairwise_ciphers);
4224 num_suites = wpa_cipher_to_cipher_suites(params->pairwise_ciphers,
4225 suites, ARRAY_SIZE(suites));
4226 if (num_suites &&
4227 nla_put(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE,
4228 num_suites * sizeof(u32), suites))
4229 goto fail;
4230
4231 wpa_printf(MSG_DEBUG, "nl80211: group_cipher=0x%x",
4232 params->group_cipher);
4233 suite = wpa_cipher_to_cipher_suite(params->group_cipher);
4234 if (suite &&
4235 nla_put_u32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, suite))
4236 goto fail;
4237
4238 if (params->ht_opmode != -1) {
4239 switch (params->smps_mode) {
4240 case HT_CAP_INFO_SMPS_DYNAMIC:
4241 wpa_printf(MSG_DEBUG, "nl80211: SMPS mode - dynamic");
4242 smps_mode = NL80211_SMPS_DYNAMIC;
4243 break;
4244 case HT_CAP_INFO_SMPS_STATIC:
4245 wpa_printf(MSG_DEBUG, "nl80211: SMPS mode - static");
4246 smps_mode = NL80211_SMPS_STATIC;
4247 break;
4248 default:
4249 /* invalid - fallback to smps off */
4250 case HT_CAP_INFO_SMPS_DISABLED:
4251 wpa_printf(MSG_DEBUG, "nl80211: SMPS mode - off");
4252 smps_mode = NL80211_SMPS_OFF;
4253 break;
4254 }
4255 if (nla_put_u8(msg, NL80211_ATTR_SMPS_MODE, smps_mode))
4256 goto fail;
4257 }
4258
4259 if (params->beacon_ies) {
4260 wpa_hexdump_buf(MSG_DEBUG, "nl80211: beacon_ies",
4261 params->beacon_ies);
4262 if (nla_put(msg, NL80211_ATTR_IE,
4263 wpabuf_len(params->beacon_ies),
4264 wpabuf_head(params->beacon_ies)))
4265 goto fail;
4266 }
4267 if (params->proberesp_ies) {
4268 wpa_hexdump_buf(MSG_DEBUG, "nl80211: proberesp_ies",
4269 params->proberesp_ies);
4270 if (nla_put(msg, NL80211_ATTR_IE_PROBE_RESP,
4271 wpabuf_len(params->proberesp_ies),
4272 wpabuf_head(params->proberesp_ies)))
4273 goto fail;
4274 }
4275 if (params->assocresp_ies) {
4276 wpa_hexdump_buf(MSG_DEBUG, "nl80211: assocresp_ies",
4277 params->assocresp_ies);
4278 if (nla_put(msg, NL80211_ATTR_IE_ASSOC_RESP,
4279 wpabuf_len(params->assocresp_ies),
4280 wpabuf_head(params->assocresp_ies)))
4281 goto fail;
4282 }
4283
4284 if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) {
4285 wpa_printf(MSG_DEBUG, "nl80211: ap_max_inactivity=%d",
4286 params->ap_max_inactivity);
4287 if (nla_put_u16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT,
4288 params->ap_max_inactivity))
4289 goto fail;
4290 }
4291
4292 #ifdef CONFIG_P2P
4293 if (params->p2p_go_ctwindow > 0) {
4294 if (drv->p2p_go_ctwindow_supported) {
4295 wpa_printf(MSG_DEBUG, "nl80211: P2P GO ctwindow=%d",
4296 params->p2p_go_ctwindow);
4297 if (nla_put_u8(msg, NL80211_ATTR_P2P_CTWINDOW,
4298 params->p2p_go_ctwindow))
4299 goto fail;
4300 } else {
4301 wpa_printf(MSG_INFO,
4302 "nl80211: Driver does not support CTWindow configuration - ignore this parameter");
4303 }
4304 }
4305 #endif /* CONFIG_P2P */
4306
4307 if (params->pbss) {
4308 wpa_printf(MSG_DEBUG, "nl80211: PBSS");
4309 if (nla_put_flag(msg, NL80211_ATTR_PBSS))
4310 goto fail;
4311 }
4312
4313 if (params->ftm_responder) {
4314 struct nlattr *ftm;
4315
4316 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_FTM_RESPONDER)) {
4317 ret = -ENOTSUP;
4318 goto fail;
4319 }
4320
4321 ftm = nla_nest_start(msg, NL80211_ATTR_FTM_RESPONDER);
4322 if (!ftm ||
4323 nla_put_flag(msg, NL80211_FTM_RESP_ATTR_ENABLED) ||
4324 (params->lci &&
4325 nla_put(msg, NL80211_FTM_RESP_ATTR_LCI,
4326 wpabuf_len(params->lci),
4327 wpabuf_head(params->lci))) ||
4328 (params->civic &&
4329 nla_put(msg, NL80211_FTM_RESP_ATTR_CIVICLOC,
4330 wpabuf_len(params->civic),
4331 wpabuf_head(params->civic))))
4332 goto fail;
4333 nla_nest_end(msg, ftm);
4334 }
4335
4336 #ifdef CONFIG_IEEE80211AX
4337 if (params->he_spr) {
4338 struct nlattr *spr;
4339
4340 spr = nla_nest_start(msg, NL80211_ATTR_HE_OBSS_PD);
4341 wpa_printf(MSG_DEBUG, "nl80211: he_spr=%d", params->he_spr);
4342
4343 if (nla_put_u8(msg, NL80211_HE_OBSS_PD_ATTR_MIN_OFFSET,
4344 params->he_spr_srg_obss_pd_min_offset) ||
4345 nla_put_u8(msg, NL80211_HE_OBSS_PD_ATTR_MAX_OFFSET,
4346 params->he_spr_srg_obss_pd_max_offset))
4347 goto fail;
4348
4349 nla_nest_end(msg, spr);
4350 }
4351 #endif /* CONFIG_IEEE80211AX */
4352
4353 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4354 if (ret) {
4355 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)",
4356 ret, strerror(-ret));
4357 } else {
4358 bss->beacon_set = 1;
4359 nl80211_set_bss(bss, params->cts_protect, params->preamble,
4360 params->short_slot_time, params->ht_opmode,
4361 params->isolate, params->basic_rates);
4362 nl80211_set_multicast_to_unicast(bss,
4363 params->multicast_to_unicast);
4364 if (beacon_set && params->freq &&
4365 params->freq->bandwidth != bss->bandwidth) {
4366 wpa_printf(MSG_DEBUG,
4367 "nl80211: Update BSS %s bandwidth: %d -> %d",
4368 bss->ifname, bss->bandwidth,
4369 params->freq->bandwidth);
4370 ret = nl80211_set_channel(bss, params->freq, 1);
4371 if (ret) {
4372 wpa_printf(MSG_DEBUG,
4373 "nl80211: Frequency set failed: %d (%s)",
4374 ret, strerror(-ret));
4375 } else {
4376 wpa_printf(MSG_DEBUG,
4377 "nl80211: Frequency set succeeded for ht2040 coex");
4378 bss->bandwidth = params->freq->bandwidth;
4379 }
4380 } else if (!beacon_set && params->freq) {
4381 /*
4382 * cfg80211 updates the driver on frequence change in AP
4383 * mode only at the point when beaconing is started, so
4384 * set the initial value here.
4385 */
4386 bss->bandwidth = params->freq->bandwidth;
4387 }
4388 }
4389
4390 #ifdef CONFIG_MESH
4391 if (is_mesh_interface(drv->nlmode) && params->ht_opmode != -1) {
4392 os_memset(&mesh_params, 0, sizeof(mesh_params));
4393 mesh_params.flags |= WPA_DRIVER_MESH_CONF_FLAG_HT_OP_MODE;
4394 mesh_params.ht_opmode = params->ht_opmode;
4395 ret = nl80211_set_mesh_config(priv, &mesh_params);
4396 if (ret < 0)
4397 return ret;
4398 }
4399 #endif /* CONFIG_MESH */
4400
4401 return ret;
4402 fail:
4403 nlmsg_free(msg);
4404 return ret;
4405 }
4406
4407
4408 static int nl80211_put_freq_params(struct nl_msg *msg,
4409 const struct hostapd_freq_params *freq)
4410 {
4411 enum hostapd_hw_mode hw_mode;
4412 int is_24ghz;
4413 u8 channel;
4414
4415 wpa_printf(MSG_DEBUG, " * freq=%d", freq->freq);
4416 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq))
4417 return -ENOBUFS;
4418
4419 wpa_printf(MSG_DEBUG, " * he_enabled=%d", freq->he_enabled);
4420 wpa_printf(MSG_DEBUG, " * vht_enabled=%d", freq->vht_enabled);
4421 wpa_printf(MSG_DEBUG, " * ht_enabled=%d", freq->ht_enabled);
4422
4423 hw_mode = ieee80211_freq_to_chan(freq->freq, &channel);
4424 is_24ghz = hw_mode == HOSTAPD_MODE_IEEE80211G ||
4425 hw_mode == HOSTAPD_MODE_IEEE80211B;
4426
4427 if (freq->vht_enabled || (freq->he_enabled && !is_24ghz)) {
4428 enum nl80211_chan_width cw;
4429
4430 wpa_printf(MSG_DEBUG, " * bandwidth=%d", freq->bandwidth);
4431 switch (freq->bandwidth) {
4432 case 20:
4433 cw = NL80211_CHAN_WIDTH_20;
4434 break;
4435 case 40:
4436 cw = NL80211_CHAN_WIDTH_40;
4437 break;
4438 case 80:
4439 if (freq->center_freq2)
4440 cw = NL80211_CHAN_WIDTH_80P80;
4441 else
4442 cw = NL80211_CHAN_WIDTH_80;
4443 break;
4444 case 160:
4445 cw = NL80211_CHAN_WIDTH_160;
4446 break;
4447 default:
4448 return -EINVAL;
4449 }
4450
4451 wpa_printf(MSG_DEBUG, " * channel_width=%d", cw);
4452 wpa_printf(MSG_DEBUG, " * center_freq1=%d",
4453 freq->center_freq1);
4454 wpa_printf(MSG_DEBUG, " * center_freq2=%d",
4455 freq->center_freq2);
4456 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, cw) ||
4457 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1,
4458 freq->center_freq1) ||
4459 (freq->center_freq2 &&
4460 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2,
4461 freq->center_freq2)))
4462 return -ENOBUFS;
4463 } else if (freq->ht_enabled) {
4464 enum nl80211_channel_type ct;
4465
4466 wpa_printf(MSG_DEBUG, " * sec_channel_offset=%d",
4467 freq->sec_channel_offset);
4468 switch (freq->sec_channel_offset) {
4469 case -1:
4470 ct = NL80211_CHAN_HT40MINUS;
4471 break;
4472 case 1:
4473 ct = NL80211_CHAN_HT40PLUS;
4474 break;
4475 default:
4476 ct = NL80211_CHAN_HT20;
4477 break;
4478 }
4479
4480 wpa_printf(MSG_DEBUG, " * channel_type=%d", ct);
4481 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, ct))
4482 return -ENOBUFS;
4483 } else if (freq->edmg.channels && freq->edmg.bw_config) {
4484 wpa_printf(MSG_DEBUG,
4485 " * EDMG configuration: channels=0x%x bw_config=%d",
4486 freq->edmg.channels, freq->edmg.bw_config);
4487 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_EDMG_CHANNELS,
4488 freq->edmg.channels) ||
4489 nla_put_u8(msg, NL80211_ATTR_WIPHY_EDMG_BW_CONFIG,
4490 freq->edmg.bw_config))
4491 return -1;
4492 } else {
4493 wpa_printf(MSG_DEBUG, " * channel_type=%d",
4494 NL80211_CHAN_NO_HT);
4495 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
4496 NL80211_CHAN_NO_HT))
4497 return -ENOBUFS;
4498 }
4499 return 0;
4500 }
4501
4502
4503 static int nl80211_set_channel(struct i802_bss *bss,
4504 struct hostapd_freq_params *freq, int set_chan)
4505 {
4506 struct wpa_driver_nl80211_data *drv = bss->drv;
4507 struct nl_msg *msg;
4508 int ret;
4509
4510 wpa_printf(MSG_DEBUG,
4511 "nl80211: Set freq %d (ht_enabled=%d, vht_enabled=%d, he_enabled=%d, bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)",
4512 freq->freq, freq->ht_enabled, freq->vht_enabled, freq->he_enabled,
4513 freq->bandwidth, freq->center_freq1, freq->center_freq2);
4514
4515 msg = nl80211_drv_msg(drv, 0, set_chan ? NL80211_CMD_SET_CHANNEL :
4516 NL80211_CMD_SET_WIPHY);
4517 if (!msg || nl80211_put_freq_params(msg, freq) < 0) {
4518 nlmsg_free(msg);
4519 return -1;
4520 }
4521
4522 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4523 if (ret == 0) {
4524 bss->freq = freq->freq;
4525 return 0;
4526 }
4527 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): "
4528 "%d (%s)", freq->freq, ret, strerror(-ret));
4529 return -1;
4530 }
4531
4532
4533 static u32 sta_flags_nl80211(int flags)
4534 {
4535 u32 f = 0;
4536
4537 if (flags & WPA_STA_AUTHORIZED)
4538 f |= BIT(NL80211_STA_FLAG_AUTHORIZED);
4539 if (flags & WPA_STA_WMM)
4540 f |= BIT(NL80211_STA_FLAG_WME);
4541 if (flags & WPA_STA_SHORT_PREAMBLE)
4542 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
4543 if (flags & WPA_STA_MFP)
4544 f |= BIT(NL80211_STA_FLAG_MFP);
4545 if (flags & WPA_STA_TDLS_PEER)
4546 f |= BIT(NL80211_STA_FLAG_TDLS_PEER);
4547 if (flags & WPA_STA_AUTHENTICATED)
4548 f |= BIT(NL80211_STA_FLAG_AUTHENTICATED);
4549 if (flags & WPA_STA_ASSOCIATED)
4550 f |= BIT(NL80211_STA_FLAG_ASSOCIATED);
4551
4552 return f;
4553 }
4554
4555
4556 #ifdef CONFIG_MESH
4557 static u32 sta_plink_state_nl80211(enum mesh_plink_state state)
4558 {
4559 switch (state) {
4560 case PLINK_IDLE:
4561 return NL80211_PLINK_LISTEN;
4562 case PLINK_OPN_SNT:
4563 return NL80211_PLINK_OPN_SNT;
4564 case PLINK_OPN_RCVD:
4565 return NL80211_PLINK_OPN_RCVD;
4566 case PLINK_CNF_RCVD:
4567 return NL80211_PLINK_CNF_RCVD;
4568 case PLINK_ESTAB:
4569 return NL80211_PLINK_ESTAB;
4570 case PLINK_HOLDING:
4571 return NL80211_PLINK_HOLDING;
4572 case PLINK_BLOCKED:
4573 return NL80211_PLINK_BLOCKED;
4574 default:
4575 wpa_printf(MSG_ERROR, "nl80211: Invalid mesh plink state %d",
4576 state);
4577 }
4578 return -1;
4579 }
4580 #endif /* CONFIG_MESH */
4581
4582
4583 static int wpa_driver_nl80211_sta_add(void *priv,
4584 struct hostapd_sta_add_params *params)
4585 {
4586 struct i802_bss *bss = priv;
4587 struct wpa_driver_nl80211_data *drv = bss->drv;
4588 struct nl_msg *msg;
4589 struct nl80211_sta_flag_update upd;
4590 int ret = -ENOBUFS;
4591
4592 if ((params->flags & WPA_STA_TDLS_PEER) &&
4593 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
4594 return -EOPNOTSUPP;
4595
4596 wpa_printf(MSG_DEBUG, "nl80211: %s STA " MACSTR,
4597 params->set ? "Set" : "Add", MAC2STR(params->addr));
4598 msg = nl80211_bss_msg(bss, 0, params->set ? NL80211_CMD_SET_STATION :
4599 NL80211_CMD_NEW_STATION);
4600 if (!msg || nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr))
4601 goto fail;
4602
4603 /*
4604 * Set the below properties only in one of the following cases:
4605 * 1. New station is added, already associated.
4606 * 2. Set WPA_STA_TDLS_PEER station.
4607 * 3. Set an already added unassociated station, if driver supports
4608 * full AP client state. (Set these properties after station became
4609 * associated will be rejected by the driver).
4610 */
4611 if (!params->set || (params->flags & WPA_STA_TDLS_PEER) ||
4612 (params->set && FULL_AP_CLIENT_STATE_SUPP(drv->capa.flags) &&
4613 (params->flags & WPA_STA_ASSOCIATED))) {
4614 wpa_hexdump(MSG_DEBUG, " * supported rates",
4615 params->supp_rates, params->supp_rates_len);
4616 wpa_printf(MSG_DEBUG, " * capability=0x%x",
4617 params->capability);
4618 if (nla_put(msg, NL80211_ATTR_STA_SUPPORTED_RATES,
4619 params->supp_rates_len, params->supp_rates) ||
4620 nla_put_u16(msg, NL80211_ATTR_STA_CAPABILITY,
4621 params->capability))
4622 goto fail;
4623
4624 if (params->ht_capabilities) {
4625 wpa_hexdump(MSG_DEBUG, " * ht_capabilities",
4626 (u8 *) params->ht_capabilities,
4627 sizeof(*params->ht_capabilities));
4628 if (nla_put(msg, NL80211_ATTR_HT_CAPABILITY,
4629 sizeof(*params->ht_capabilities),
4630 params->ht_capabilities))
4631 goto fail;
4632 }
4633
4634 if (params->vht_capabilities) {
4635 wpa_hexdump(MSG_DEBUG, " * vht_capabilities",
4636 (u8 *) params->vht_capabilities,
4637 sizeof(*params->vht_capabilities));
4638 if (nla_put(msg, NL80211_ATTR_VHT_CAPABILITY,
4639 sizeof(*params->vht_capabilities),
4640 params->vht_capabilities))
4641 goto fail;
4642 }
4643
4644 if (params->he_capab) {
4645 wpa_hexdump(MSG_DEBUG, " * he_capab",
4646 params->he_capab, params->he_capab_len);
4647 if (nla_put(msg, NL80211_ATTR_HE_CAPABILITY,
4648 params->he_capab_len, params->he_capab))
4649 goto fail;
4650 }
4651
4652 if (params->ext_capab) {
4653 wpa_hexdump(MSG_DEBUG, " * ext_capab",
4654 params->ext_capab, params->ext_capab_len);
4655 if (nla_put(msg, NL80211_ATTR_STA_EXT_CAPABILITY,
4656 params->ext_capab_len, params->ext_capab))
4657 goto fail;
4658 }
4659
4660 if (is_ap_interface(drv->nlmode) &&
4661 nla_put_u8(msg, NL80211_ATTR_STA_SUPPORT_P2P_PS,
4662 params->support_p2p_ps ?
4663 NL80211_P2P_PS_SUPPORTED :
4664 NL80211_P2P_PS_UNSUPPORTED))
4665 goto fail;
4666 }
4667 if (!params->set) {
4668 if (params->aid) {
4669 wpa_printf(MSG_DEBUG, " * aid=%u", params->aid);
4670 if (nla_put_u16(msg, NL80211_ATTR_STA_AID, params->aid))
4671 goto fail;
4672 } else {
4673 /*
4674 * cfg80211 validates that AID is non-zero, so we have
4675 * to make this a non-zero value for the TDLS case where
4676 * a dummy STA entry is used for now and for a station
4677 * that is still not associated.
4678 */
4679 wpa_printf(MSG_DEBUG, " * aid=1 (%s workaround)",
4680 (params->flags & WPA_STA_TDLS_PEER) ?
4681 "TDLS" : "UNASSOC_STA");
4682 if (nla_put_u16(msg, NL80211_ATTR_STA_AID, 1))
4683 goto fail;
4684 }
4685 wpa_printf(MSG_DEBUG, " * listen_interval=%u",
4686 params->listen_interval);
4687 if (nla_put_u16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL,
4688 params->listen_interval))
4689 goto fail;
4690 } else if (params->aid && (params->flags & WPA_STA_TDLS_PEER)) {
4691 wpa_printf(MSG_DEBUG, " * peer_aid=%u", params->aid);
4692 if (nla_put_u16(msg, NL80211_ATTR_PEER_AID, params->aid))
4693 goto fail;
4694 } else if (FULL_AP_CLIENT_STATE_SUPP(drv->capa.flags) &&
4695 (params->flags & WPA_STA_ASSOCIATED)) {
4696 wpa_printf(MSG_DEBUG, " * aid=%u", params->aid);
4697 wpa_printf(MSG_DEBUG, " * listen_interval=%u",
4698 params->listen_interval);
4699 if (nla_put_u16(msg, NL80211_ATTR_STA_AID, params->aid) ||
4700 nla_put_u16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL,
4701 params->listen_interval))
4702 goto fail;
4703 }
4704
4705 if (params->vht_opmode_enabled) {
4706 wpa_printf(MSG_DEBUG, " * opmode=%u", params->vht_opmode);
4707 if (nla_put_u8(msg, NL80211_ATTR_OPMODE_NOTIF,
4708 params->vht_opmode))
4709 goto fail;
4710 }
4711
4712 if (params->supp_channels) {
4713 wpa_hexdump(MSG_DEBUG, " * supported channels",
4714 params->supp_channels, params->supp_channels_len);
4715 if (nla_put(msg, NL80211_ATTR_STA_SUPPORTED_CHANNELS,
4716 params->supp_channels_len, params->supp_channels))
4717 goto fail;
4718 }
4719
4720 if (params->supp_oper_classes) {
4721 wpa_hexdump(MSG_DEBUG, " * supported operating classes",
4722 params->supp_oper_classes,
4723 params->supp_oper_classes_len);
4724 if (nla_put(msg, NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES,
4725 params->supp_oper_classes_len,
4726 params->supp_oper_classes))
4727 goto fail;
4728 }
4729
4730 os_memset(&upd, 0, sizeof(upd));
4731 upd.set = sta_flags_nl80211(params->flags);
4732 upd.mask = upd.set | sta_flags_nl80211(params->flags_mask);
4733
4734 /*
4735 * If the driver doesn't support full AP client state, ignore ASSOC/AUTH
4736 * flags, as nl80211 driver moves a new station, by default, into
4737 * associated state.
4738 *
4739 * On the other hand, if the driver supports that feature and the
4740 * station is added in unauthenticated state, set the
4741 * authenticated/associated bits in the mask to prevent moving this
4742 * station to associated state before it is actually associated.
4743 *
4744 * This is irrelevant for mesh mode where the station is added to the
4745 * driver as authenticated already, and ASSOCIATED isn't part of the
4746 * nl80211 API.
4747 */
4748 if (!is_mesh_interface(drv->nlmode)) {
4749 if (!FULL_AP_CLIENT_STATE_SUPP(drv->capa.flags)) {
4750 wpa_printf(MSG_DEBUG,
4751 "nl80211: Ignore ASSOC/AUTH flags since driver doesn't support full AP client state");
4752 upd.mask &= ~(BIT(NL80211_STA_FLAG_ASSOCIATED) |
4753 BIT(NL80211_STA_FLAG_AUTHENTICATED));
4754 } else if (!params->set &&
4755 !(params->flags & WPA_STA_TDLS_PEER)) {
4756 if (!(params->flags & WPA_STA_AUTHENTICATED))
4757 upd.mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED);
4758 if (!(params->flags & WPA_STA_ASSOCIATED))
4759 upd.mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
4760 }
4761 #ifdef CONFIG_MESH
4762 } else {
4763 if (params->plink_state == PLINK_ESTAB && params->peer_aid) {
4764 ret = nla_put_u16(msg, NL80211_ATTR_MESH_PEER_AID,
4765 params->peer_aid);
4766 if (ret)
4767 goto fail;
4768 }
4769 #endif /* CONFIG_MESH */
4770 }
4771
4772 wpa_printf(MSG_DEBUG, " * flags set=0x%x mask=0x%x",
4773 upd.set, upd.mask);
4774 if (nla_put(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd))
4775 goto fail;
4776
4777 #ifdef CONFIG_MESH
4778 if (params->plink_state &&
4779 nla_put_u8(msg, NL80211_ATTR_STA_PLINK_STATE,
4780 sta_plink_state_nl80211(params->plink_state)))
4781 goto fail;
4782 #endif /* CONFIG_MESH */
4783
4784 if ((!params->set || (params->flags & WPA_STA_TDLS_PEER) ||
4785 FULL_AP_CLIENT_STATE_SUPP(drv->capa.flags)) &&
4786 (params->flags & WPA_STA_WMM)) {
4787 struct nlattr *wme = nla_nest_start(msg, NL80211_ATTR_STA_WME);
4788
4789 wpa_printf(MSG_DEBUG, " * qosinfo=0x%x", params->qosinfo);
4790 if (!wme ||
4791 nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
4792 params->qosinfo & WMM_QOSINFO_STA_AC_MASK) ||
4793 nla_put_u8(msg, NL80211_STA_WME_MAX_SP,
4794 (params->qosinfo >> WMM_QOSINFO_STA_SP_SHIFT) &
4795 WMM_QOSINFO_STA_SP_MASK))
4796 goto fail;
4797 nla_nest_end(msg, wme);
4798 }
4799
4800 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4801 msg = NULL;
4802 if (ret)
4803 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION "
4804 "result: %d (%s)", params->set ? "SET" : "NEW", ret,
4805 strerror(-ret));
4806 if (ret == -EEXIST)
4807 ret = 0;
4808 fail:
4809 nlmsg_free(msg);
4810 return ret;
4811 }
4812
4813
4814 static void rtnl_neigh_delete_fdb_entry(struct i802_bss *bss, const u8 *addr)
4815 {
4816 #ifdef CONFIG_LIBNL3_ROUTE
4817 struct wpa_driver_nl80211_data *drv = bss->drv;
4818 struct rtnl_neigh *rn;
4819 struct nl_addr *nl_addr;
4820 int err;
4821
4822 rn = rtnl_neigh_alloc();
4823 if (!rn)
4824 return;
4825
4826 rtnl_neigh_set_family(rn, AF_BRIDGE);
4827 rtnl_neigh_set_ifindex(rn, bss->ifindex);
4828 nl_addr = nl_addr_build(AF_BRIDGE, (void *) addr, ETH_ALEN);
4829 if (!nl_addr) {
4830 rtnl_neigh_put(rn);
4831 return;
4832 }
4833 rtnl_neigh_set_lladdr(rn, nl_addr);
4834
4835 err = rtnl_neigh_delete(drv->rtnl_sk, rn, 0);
4836 if (err < 0) {
4837 wpa_printf(MSG_DEBUG, "nl80211: bridge FDB entry delete for "
4838 MACSTR " ifindex=%d failed: %s", MAC2STR(addr),
4839 bss->ifindex, nl_geterror(err));
4840 } else {
4841 wpa_printf(MSG_DEBUG, "nl80211: deleted bridge FDB entry for "
4842 MACSTR, MAC2STR(addr));
4843 }
4844
4845 nl_addr_put(nl_addr);
4846 rtnl_neigh_put(rn);
4847 #endif /* CONFIG_LIBNL3_ROUTE */
4848 }
4849
4850
4851 static int wpa_driver_nl80211_sta_remove(struct i802_bss *bss, const u8 *addr,
4852 int deauth, u16 reason_code)
4853 {
4854 struct wpa_driver_nl80211_data *drv = bss->drv;
4855 struct nl_msg *msg;
4856 int ret;
4857
4858 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_DEL_STATION)) ||
4859 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
4860 (deauth == 0 &&
4861 nla_put_u8(msg, NL80211_ATTR_MGMT_SUBTYPE,
4862 WLAN_FC_STYPE_DISASSOC)) ||
4863 (deauth == 1 &&
4864 nla_put_u8(msg, NL80211_ATTR_MGMT_SUBTYPE,
4865 WLAN_FC_STYPE_DEAUTH)) ||
4866 (reason_code &&
4867 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code))) {
4868 nlmsg_free(msg);
4869 return -ENOBUFS;
4870 }
4871
4872 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4873 wpa_printf(MSG_DEBUG, "nl80211: sta_remove -> DEL_STATION %s " MACSTR
4874 " --> %d (%s)",
4875 bss->ifname, MAC2STR(addr), ret, strerror(-ret));
4876
4877 if (drv->rtnl_sk)
4878 rtnl_neigh_delete_fdb_entry(bss, addr);
4879
4880 if (ret == -ENOENT)
4881 return 0;
4882 return ret;
4883 }
4884
4885
4886 void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, int ifidx)
4887 {
4888 struct nl_msg *msg;
4889 struct wpa_driver_nl80211_data *drv2;
4890
4891 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx);
4892
4893 /* stop listening for EAPOL on this interface */
4894 dl_list_for_each(drv2, &drv->global->interfaces,
4895 struct wpa_driver_nl80211_data, list)
4896 {
4897 del_ifidx(drv2, ifidx, IFIDX_ANY);
4898 /* Remove all bridges learned for this iface */
4899 del_ifidx(drv2, IFIDX_ANY, ifidx);
4900 }
4901
4902 msg = nl80211_ifindex_msg(drv, ifidx, 0, NL80211_CMD_DEL_INTERFACE);
4903 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
4904 return;
4905 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx);
4906 }
4907
4908
4909 const char * nl80211_iftype_str(enum nl80211_iftype mode)
4910 {
4911 switch (mode) {
4912 case NL80211_IFTYPE_ADHOC:
4913 return "ADHOC";
4914 case NL80211_IFTYPE_STATION:
4915 return "STATION";
4916 case NL80211_IFTYPE_AP:
4917 return "AP";
4918 case NL80211_IFTYPE_AP_VLAN:
4919 return "AP_VLAN";
4920 case NL80211_IFTYPE_WDS:
4921 return "WDS";
4922 case NL80211_IFTYPE_MONITOR:
4923 return "MONITOR";
4924 case NL80211_IFTYPE_MESH_POINT:
4925 return "MESH_POINT";
4926 case NL80211_IFTYPE_P2P_CLIENT:
4927 return "P2P_CLIENT";
4928 case NL80211_IFTYPE_P2P_GO:
4929 return "P2P_GO";
4930 case NL80211_IFTYPE_P2P_DEVICE:
4931 return "P2P_DEVICE";
4932 default:
4933 return "unknown";
4934 }
4935 }
4936
4937
4938 static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv,
4939 const char *ifname,
4940 enum nl80211_iftype iftype,
4941 const u8 *addr, int wds,
4942 int (*handler)(struct nl_msg *, void *),
4943 void *arg)
4944 {
4945 struct nl_msg *msg;
4946 int ifidx;
4947 int ret = -ENOBUFS;
4948
4949 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)",
4950 iftype, nl80211_iftype_str(iftype));
4951
4952 msg = nl80211_cmd_msg(drv->first_bss, 0, NL80211_CMD_NEW_INTERFACE);
4953 if (!msg ||
4954 nla_put_string(msg, NL80211_ATTR_IFNAME, ifname) ||
4955 nla_put_u32(msg, NL80211_ATTR_IFTYPE, iftype))
4956 goto fail;
4957
4958 if (iftype == NL80211_IFTYPE_MONITOR) {
4959 struct nlattr *flags;
4960
4961 flags = nla_nest_start(msg, NL80211_ATTR_MNTR_FLAGS);
4962 if (!flags ||
4963 nla_put_flag(msg, NL80211_MNTR_FLAG_COOK_FRAMES))
4964 goto fail;
4965
4966 nla_nest_end(msg, flags);
4967 } else if (wds) {
4968 if (nla_put_u8(msg, NL80211_ATTR_4ADDR, wds))
4969 goto fail;
4970 }
4971
4972 /*
4973 * Tell cfg80211 that the interface belongs to the socket that created
4974 * it, and the interface should be deleted when the socket is closed.
4975 */
4976 if (nla_put_flag(msg, NL80211_ATTR_IFACE_SOCKET_OWNER))
4977 goto fail;
4978
4979 ret = send_and_recv_msgs(drv, msg, handler, arg);
4980 msg = NULL;
4981 if (ret) {
4982 fail:
4983 nlmsg_free(msg);
4984 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)",
4985 ifname, ret, strerror(-ret));
4986 return ret;
4987 }
4988
4989 if (iftype == NL80211_IFTYPE_P2P_DEVICE)
4990 return 0;
4991
4992 ifidx = if_nametoindex(ifname);
4993 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d",
4994 ifname, ifidx);
4995
4996 if (ifidx <= 0)
4997 return -1;
4998
4999 /*
5000 * Some virtual interfaces need to process EAPOL packets and events on
5001 * the parent interface. This is used mainly with hostapd.
5002 */
5003 if (drv->hostapd ||
5004 iftype == NL80211_IFTYPE_AP_VLAN ||
5005 iftype == NL80211_IFTYPE_WDS ||
5006 iftype == NL80211_IFTYPE_MONITOR) {
5007 /* start listening for EAPOL on this interface */
5008 add_ifidx(drv, ifidx, IFIDX_ANY);
5009 }
5010
5011 if (addr && iftype != NL80211_IFTYPE_MONITOR &&
5012 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) {
5013 nl80211_remove_iface(drv, ifidx);
5014 return -1;
5015 }
5016
5017 return ifidx;
5018 }
5019
5020
5021 int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
5022 const char *ifname, enum nl80211_iftype iftype,
5023 const u8 *addr, int wds,
5024 int (*handler)(struct nl_msg *, void *),
5025 void *arg, int use_existing)
5026 {
5027 int ret;
5028
5029 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds, handler,
5030 arg);
5031
5032 /* if error occurred and interface exists already */
5033 if (ret == -ENFILE && if_nametoindex(ifname)) {
5034 if (use_existing) {
5035 wpa_printf(MSG_DEBUG, "nl80211: Continue using existing interface %s",
5036 ifname);
5037 if (addr && iftype != NL80211_IFTYPE_MONITOR &&
5038 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname,
5039 addr) < 0 &&
5040 (linux_set_iface_flags(drv->global->ioctl_sock,
5041 ifname, 0) < 0 ||
5042 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname,
5043 addr) < 0 ||
5044 linux_set_iface_flags(drv->global->ioctl_sock,
5045 ifname, 1) < 0))
5046 return -1;
5047 return -ENFILE;
5048 }
5049 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname);
5050
5051 /* Try to remove the interface that was already there. */
5052 nl80211_remove_iface(drv, if_nametoindex(ifname));
5053
5054 /* Try to create the interface again */
5055 ret = nl80211_create_iface_once(drv, ifname, iftype, addr,
5056 wds, handler, arg);
5057 }
5058
5059 if (ret >= 0 && is_p2p_net_interface(iftype)) {
5060 wpa_printf(MSG_DEBUG,
5061 "nl80211: Interface %s created for P2P - disable 11b rates",
5062 ifname);
5063 nl80211_disable_11b_rates(drv, ret, 1);
5064 }
5065
5066 return ret;
5067 }
5068
5069
5070 static int nl80211_setup_ap(struct i802_bss *bss)
5071 {
5072 struct wpa_driver_nl80211_data *drv = bss->drv;
5073
5074 wpa_printf(MSG_DEBUG, "nl80211: Setup AP(%s) - device_ap_sme=%d use_monitor=%d",
5075 bss->ifname, drv->device_ap_sme, drv->use_monitor);
5076
5077 /*
5078 * Disable Probe Request reporting unless we need it in this way for
5079 * devices that include the AP SME, in the other case (unless using
5080 * monitor iface) we'll get it through the nl_mgmt socket instead.
5081 */
5082 if (!drv->device_ap_sme)
5083 wpa_driver_nl80211_probe_req_report(bss, 0);
5084
5085 if (!drv->device_ap_sme && !drv->use_monitor)
5086 if (nl80211_mgmt_subscribe_ap(bss))
5087 return -1;
5088
5089 if (drv->device_ap_sme && !drv->use_monitor)
5090 if (nl80211_mgmt_subscribe_ap_dev_sme(bss))
5091 wpa_printf(MSG_DEBUG,
5092 "nl80211: Failed to subscribe for mgmt frames from SME driver - trying to run without it");
5093
5094 if (!drv->device_ap_sme && drv->use_monitor &&
5095 nl80211_create_monitor_interface(drv) &&
5096 !drv->device_ap_sme)
5097 return -1;
5098
5099 if (drv->device_ap_sme &&
5100 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) {
5101 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable "
5102 "Probe Request frame reporting in AP mode");
5103 /* Try to survive without this */
5104 }
5105
5106 return 0;
5107 }
5108
5109
5110 static void nl80211_teardown_ap(struct i802_bss *bss)
5111 {
5112 struct wpa_driver_nl80211_data *drv = bss->drv;
5113
5114 wpa_printf(MSG_DEBUG, "nl80211: Teardown AP(%s) - device_ap_sme=%d use_monitor=%d",
5115 bss->ifname, drv->device_ap_sme, drv->use_monitor);
5116 if (drv->device_ap_sme) {
5117 wpa_driver_nl80211_probe_req_report(bss, 0);
5118 if (!drv->use_monitor)
5119 nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)");
5120 } else if (drv->use_monitor)
5121 nl80211_remove_monitor_interface(drv);
5122 else
5123 nl80211_mgmt_unsubscribe(bss, "AP teardown");
5124
5125 nl80211_put_wiphy_data_ap(bss);
5126 bss->beacon_set = 0;
5127 }
5128
5129
5130 static int nl80211_tx_control_port(void *priv, const u8 *dest,
5131 u16 proto, const u8 *buf, size_t len,
5132 int no_encrypt)
5133 {
5134 struct i802_bss *bss = priv;
5135 struct nl_msg *msg;
5136 int ret;
5137
5138 wpa_printf(MSG_DEBUG,
5139 "nl80211: Send over control port dest=" MACSTR
5140 " proto=0x%04x len=%u no_encrypt=%d",
5141 MAC2STR(dest), proto, (unsigned int) len, no_encrypt);
5142
5143 msg = nl80211_bss_msg(bss, 0, NL80211_CMD_CONTROL_PORT_FRAME);
5144 if (!msg ||
5145 nla_put_u16(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE, proto) ||
5146 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dest) ||
5147 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
5148 (no_encrypt &&
5149 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT))) {
5150 nlmsg_free(msg);
5151 return -ENOBUFS;
5152 }
5153
5154 ret = send_and_recv_msgs(bss->drv, msg, NULL, NULL);
5155 if (ret)
5156 wpa_printf(MSG_DEBUG,
5157 "nl80211: tx_control_port failed: ret=%d (%s)",
5158 ret, strerror(ret));
5159
5160 return ret;
5161 }
5162
5163
5164 static int nl80211_send_eapol_data(struct i802_bss *bss,
5165 const u8 *addr, const u8 *data,
5166 size_t data_len)
5167 {
5168 struct sockaddr_ll ll;
5169 int ret;
5170
5171 if (bss->drv->eapol_tx_sock < 0) {
5172 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL");
5173 return -1;
5174 }
5175
5176 os_memset(&ll, 0, sizeof(ll));
5177 ll.sll_family = AF_PACKET;
5178 ll.sll_ifindex = bss->ifindex;
5179 ll.sll_protocol = htons(ETH_P_PAE);
5180 ll.sll_halen = ETH_ALEN;
5181 os_memcpy(ll.sll_addr, addr, ETH_ALEN);
5182 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0,
5183 (struct sockaddr *) &ll, sizeof(ll));
5184 if (ret < 0)
5185 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s",
5186 strerror(errno));
5187
5188 return ret;
5189 }
5190
5191
5192 static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
5193
5194 static int wpa_driver_nl80211_hapd_send_eapol(
5195 void *priv, const u8 *addr, const u8 *data,
5196 size_t data_len, int encrypt, const u8 *own_addr, u32 flags)
5197 {
5198 struct i802_bss *bss = priv;
5199 struct wpa_driver_nl80211_data *drv = bss->drv;
5200 struct ieee80211_hdr *hdr;
5201 size_t len;
5202 u8 *pos;
5203 int res;
5204 int qos = flags & WPA_STA_WMM;
5205
5206 if (drv->capa.flags & WPA_DRIVER_FLAGS_CONTROL_PORT)
5207 return nl80211_tx_control_port(bss, addr, ETH_P_EAPOL,
5208 data, data_len, !encrypt);
5209
5210 if (drv->device_ap_sme || !drv->use_monitor)
5211 return nl80211_send_eapol_data(bss, addr, data, data_len);
5212
5213 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 +
5214 data_len;
5215 hdr = os_zalloc(len);
5216 if (hdr == NULL) {
5217 wpa_printf(MSG_INFO, "nl80211: Failed to allocate EAPOL buffer(len=%lu)",
5218 (unsigned long) len);
5219 return -1;
5220 }
5221
5222 hdr->frame_control =
5223 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA);
5224 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS);
5225 if (encrypt)
5226 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP);
5227 if (qos) {
5228 hdr->frame_control |=
5229 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4);
5230 }
5231
5232 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN);
5233 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
5234 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
5235 pos = (u8 *) (hdr + 1);
5236
5237 if (qos) {
5238 /* Set highest priority in QoS header */
5239 pos[0] = 7;
5240 pos[1] = 0;
5241 pos += 2;
5242 }
5243
5244 memcpy(pos, rfc1042_header, sizeof(rfc1042_header));
5245 pos += sizeof(rfc1042_header);
5246 WPA_PUT_BE16(pos, ETH_P_PAE);
5247 pos += 2;
5248 memcpy(pos, data, data_len);
5249
5250 res = nl80211_send_monitor(drv, hdr, len, encrypt, 0);
5251 if (res < 0) {
5252 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - "
5253 "failed: %d (%s)",
5254 (unsigned long) len, res, strerror(res));
5255 }
5256 os_free(hdr);
5257
5258 return res;
5259 }
5260
5261
5262 static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr,
5263 unsigned int total_flags,
5264 unsigned int flags_or,
5265 unsigned int flags_and)
5266 {
5267 struct i802_bss *bss = priv;
5268 struct nl_msg *msg;
5269 struct nlattr *flags;
5270 struct nl80211_sta_flag_update upd;
5271
5272 wpa_printf(MSG_DEBUG, "nl80211: Set STA flags - ifname=%s addr=" MACSTR
5273 " total_flags=0x%x flags_or=0x%x flags_and=0x%x authorized=%d",
5274 bss->ifname, MAC2STR(addr), total_flags, flags_or, flags_and,
5275 !!(total_flags & WPA_STA_AUTHORIZED));
5276
5277 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_STATION)) ||
5278 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
5279 goto fail;
5280
5281 /*
5282 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This
5283 * can be removed eventually.
5284 */
5285 flags = nla_nest_start(msg, NL80211_ATTR_STA_FLAGS);
5286 if (!flags ||
5287 ((total_flags & WPA_STA_AUTHORIZED) &&
5288 nla_put_flag(msg, NL80211_STA_FLAG_AUTHORIZED)) ||
5289 ((total_flags & WPA_STA_WMM) &&
5290 nla_put_flag(msg, NL80211_STA_FLAG_WME)) ||
5291 ((total_flags & WPA_STA_SHORT_PREAMBLE) &&
5292 nla_put_flag(msg, NL80211_STA_FLAG_SHORT_PREAMBLE)) ||
5293 ((total_flags & WPA_STA_MFP) &&
5294 nla_put_flag(msg, NL80211_STA_FLAG_MFP)) ||
5295 ((total_flags & WPA_STA_TDLS_PEER) &&
5296 nla_put_flag(msg, NL80211_STA_FLAG_TDLS_PEER)))
5297 goto fail;
5298
5299 nla_nest_end(msg, flags);
5300
5301 os_memset(&upd, 0, sizeof(upd));
5302 upd.mask = sta_flags_nl80211(flags_or | ~flags_and);
5303 upd.set = sta_flags_nl80211(flags_or);
5304 if (nla_put(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd))
5305 goto fail;
5306
5307 return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
5308 fail:
5309 nlmsg_free(msg);
5310 return -ENOBUFS;
5311 }
5312
5313
5314 static int driver_nl80211_sta_set_airtime_weight(void *priv, const u8 *addr,
5315 unsigned int weight)
5316 {
5317 struct i802_bss *bss = priv;
5318 struct nl_msg *msg;
5319
5320 wpa_printf(MSG_DEBUG,
5321 "nl80211: Set STA airtime weight - ifname=%s addr=" MACSTR
5322 " weight=%u", bss->ifname, MAC2STR(addr), weight);
5323
5324 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_STATION)) ||
5325 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
5326 nla_put_u16(msg, NL80211_ATTR_AIRTIME_WEIGHT, weight))
5327 goto fail;
5328
5329 return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
5330 fail:
5331 nlmsg_free(msg);
5332 return -ENOBUFS;
5333 }
5334
5335
5336 static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv,
5337 struct wpa_driver_associate_params *params)
5338 {
5339 enum nl80211_iftype nlmode, old_mode;
5340
5341 if (params->p2p) {
5342 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P "
5343 "group (GO)");
5344 nlmode = NL80211_IFTYPE_P2P_GO;
5345 } else
5346 nlmode = NL80211_IFTYPE_AP;
5347
5348 old_mode = drv->nlmode;
5349 if (wpa_driver_nl80211_set_mode(drv->first_bss, nlmode)) {
5350 nl80211_remove_monitor_interface(drv);
5351 return -1;
5352 }
5353
5354 if (params->freq.freq &&
5355 nl80211_set_channel(drv->first_bss, &params->freq, 0)) {
5356 if (old_mode != nlmode)
5357 wpa_driver_nl80211_set_mode(drv->first_bss, old_mode);
5358 nl80211_remove_monitor_interface(drv);
5359 return -1;
5360 }
5361
5362 return 0;
5363 }
5364
5365
5366 static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv,
5367 int reset_mode)
5368 {
5369 struct nl_msg *msg;
5370 int ret;
5371
5372 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_LEAVE_IBSS);
5373 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5374 if (ret) {
5375 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d "
5376 "(%s)", ret, strerror(-ret));
5377 } else {
5378 wpa_printf(MSG_DEBUG,
5379 "nl80211: Leave IBSS request sent successfully");
5380 }
5381
5382 if (reset_mode &&
5383 wpa_driver_nl80211_set_mode(drv->first_bss,
5384 NL80211_IFTYPE_STATION)) {
5385 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into "
5386 "station mode");
5387 }
5388
5389 return ret;
5390 }
5391
5392
5393 static int nl80211_ht_vht_overrides(struct nl_msg *msg,
5394 struct wpa_driver_associate_params *params)
5395 {
5396 if (params->disable_ht && nla_put_flag(msg, NL80211_ATTR_DISABLE_HT))
5397 return -1;
5398
5399 if (params->htcaps && params->htcaps_mask) {
5400 int sz = sizeof(struct ieee80211_ht_capabilities);
5401 wpa_hexdump(MSG_DEBUG, " * htcaps", params->htcaps, sz);
5402 wpa_hexdump(MSG_DEBUG, " * htcaps_mask",
5403 params->htcaps_mask, sz);
5404 if (nla_put(msg, NL80211_ATTR_HT_CAPABILITY, sz,
5405 params->htcaps) ||
5406 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz,
5407 params->htcaps_mask))
5408 return -1;
5409 }
5410
5411 #ifdef CONFIG_VHT_OVERRIDES
5412 if (params->disable_vht) {
5413 wpa_printf(MSG_DEBUG, " * VHT disabled");
5414 if (nla_put_flag(msg, NL80211_ATTR_DISABLE_VHT))
5415 return -1;
5416 }
5417
5418 if (params->vhtcaps && params->vhtcaps_mask) {
5419 int sz = sizeof(struct ieee80211_vht_capabilities);
5420 wpa_hexdump(MSG_DEBUG, " * vhtcaps", params->vhtcaps, sz);
5421 wpa_hexdump(MSG_DEBUG, " * vhtcaps_mask",
5422 params->vhtcaps_mask, sz);
5423 if (nla_put(msg, NL80211_ATTR_VHT_CAPABILITY, sz,
5424 params->vhtcaps) ||
5425 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz,
5426 params->vhtcaps_mask))
5427 return -1;
5428 }
5429 #endif /* CONFIG_VHT_OVERRIDES */
5430
5431 return 0;
5432 }
5433
5434
5435 static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv,
5436 struct wpa_driver_associate_params *params)
5437 {
5438 struct nl_msg *msg;
5439 int ret = -1;
5440 int count = 0;
5441
5442 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex);
5443
5444 if (wpa_driver_nl80211_set_mode_ibss(drv->first_bss, &params->freq)) {
5445 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into "
5446 "IBSS mode");
5447 return -1;
5448 }
5449
5450 retry:
5451 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_JOIN_IBSS)) ||
5452 params->ssid == NULL || params->ssid_len > sizeof(drv->ssid))
5453 goto fail;
5454
5455 wpa_printf(MSG_DEBUG, " * SSID=%s",
5456 wpa_ssid_txt(params->ssid, params->ssid_len));
5457 if (nla_put(msg, NL80211_ATTR_SSID, params->ssid_len, params->ssid))
5458 goto fail;
5459 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
5460 drv->ssid_len = params->ssid_len;
5461
5462 if (nl80211_put_freq_params(msg, &params->freq) < 0 ||
5463 nl80211_put_beacon_int(msg, params->beacon_int))
5464 goto fail;
5465
5466 ret = nl80211_set_conn_keys(params, msg);
5467 if (ret)
5468 goto fail;
5469
5470 if (params->bssid && params->fixed_bssid) {
5471 wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR,
5472 MAC2STR(params->bssid));
5473 if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid))
5474 goto fail;
5475 }
5476
5477 if (params->fixed_freq) {
5478 wpa_printf(MSG_DEBUG, " * fixed_freq");
5479 if (nla_put_flag(msg, NL80211_ATTR_FREQ_FIXED))
5480 goto fail;
5481 }
5482
5483 if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X ||
5484 params->key_mgmt_suite == WPA_KEY_MGMT_PSK ||
5485 params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SHA256 ||
5486 params->key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256) {
5487 wpa_printf(MSG_DEBUG, " * control port");
5488 if (nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT))
5489 goto fail;
5490 }
5491
5492 if (params->wpa_ie) {
5493 wpa_hexdump(MSG_DEBUG,
5494 " * Extra IEs for Beacon/Probe Response frames",
5495 params->wpa_ie, params->wpa_ie_len);
5496 if (nla_put(msg, NL80211_ATTR_IE, params->wpa_ie_len,
5497 params->wpa_ie))
5498 goto fail;
5499 }
5500
5501 ret = nl80211_ht_vht_overrides(msg, params);
5502 if (ret < 0)
5503 goto fail;
5504
5505 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5506 msg = NULL;
5507 if (ret) {
5508 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)",
5509 ret, strerror(-ret));
5510 count++;
5511 if (ret == -EALREADY && count == 1) {
5512 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after "
5513 "forced leave");
5514 nl80211_leave_ibss(drv, 0);
5515 nlmsg_free(msg);
5516 goto retry;
5517 }
5518 } else {
5519 wpa_printf(MSG_DEBUG,
5520 "nl80211: Join IBSS request sent successfully");
5521 }
5522
5523 fail:
5524 nlmsg_free(msg);
5525 return ret;
5526 }
5527
5528
5529 static int nl80211_put_fils_connect_params(struct wpa_driver_nl80211_data *drv,
5530 struct wpa_driver_associate_params *params,
5531 struct nl_msg *msg)
5532 {
5533 if (params->fils_erp_username_len) {
5534 wpa_hexdump_ascii(MSG_DEBUG, " * FILS ERP EMSKname/username",
5535 params->fils_erp_username,
5536 params->fils_erp_username_len);
5537 if (nla_put(msg, NL80211_ATTR_FILS_ERP_USERNAME,
5538 params->fils_erp_username_len,
5539 params->fils_erp_username))
5540 return -1;
5541 }
5542
5543 if (params->fils_erp_realm_len) {
5544 wpa_hexdump_ascii(MSG_DEBUG, " * FILS ERP Realm",
5545 params->fils_erp_realm,
5546 params->fils_erp_realm_len);
5547 if (nla_put(msg, NL80211_ATTR_FILS_ERP_REALM,
5548 params->fils_erp_realm_len, params->fils_erp_realm))
5549 return -1;
5550 }
5551
5552 wpa_printf(MSG_DEBUG, " * FILS ERP next seq %u",
5553 params->fils_erp_next_seq_num);
5554 if (nla_put_u16(msg, NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM,
5555 params->fils_erp_next_seq_num))
5556 return -1;
5557
5558 if (params->fils_erp_rrk_len) {
5559 wpa_printf(MSG_DEBUG, " * FILS ERP rRK (len=%lu)",
5560 (unsigned long) params->fils_erp_rrk_len);
5561 if (nla_put(msg, NL80211_ATTR_FILS_ERP_RRK,
5562 params->fils_erp_rrk_len, params->fils_erp_rrk))
5563 return -1;
5564 }
5565
5566 return 0;
5567 }
5568
5569
5570 static int nl80211_connect_common(struct wpa_driver_nl80211_data *drv,
5571 struct wpa_driver_associate_params *params,
5572 struct nl_msg *msg)
5573 {
5574 if (nla_put_flag(msg, NL80211_ATTR_IFACE_SOCKET_OWNER))
5575 return -1;
5576
5577 if (params->bssid) {
5578 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
5579 MAC2STR(params->bssid));
5580 if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid))
5581 return -1;
5582 }
5583
5584 if (params->bssid_hint) {
5585 wpa_printf(MSG_DEBUG, " * bssid_hint=" MACSTR,
5586 MAC2STR(params->bssid_hint));
5587 if (nla_put(msg, NL80211_ATTR_MAC_HINT, ETH_ALEN,
5588 params->bssid_hint))
5589 return -1;
5590 }
5591
5592 if (params->freq.freq) {
5593 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq.freq);
5594 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
5595 params->freq.freq))
5596 return -1;
5597 drv->assoc_freq = params->freq.freq;
5598 } else
5599 drv->assoc_freq = 0;
5600
5601 if (params->freq_hint) {
5602 wpa_printf(MSG_DEBUG, " * freq_hint=%d", params->freq_hint);
5603 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ_HINT,
5604 params->freq_hint))
5605 return -1;
5606 }
5607
5608 if (params->freq.edmg.channels && params->freq.edmg.bw_config) {
5609 wpa_printf(MSG_DEBUG,
5610 " * EDMG configuration: channels=0x%x bw_config=%d",
5611 params->freq.edmg.channels,
5612 params->freq.edmg.bw_config);
5613 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_EDMG_CHANNELS,
5614 params->freq.edmg.channels) ||
5615 nla_put_u8(msg, NL80211_ATTR_WIPHY_EDMG_BW_CONFIG,
5616 params->freq.edmg.bw_config))
5617 return -1;
5618 }
5619
5620 if (params->bg_scan_period >= 0) {
5621 wpa_printf(MSG_DEBUG, " * bg scan period=%d",
5622 params->bg_scan_period);
5623 if (nla_put_u16(msg, NL80211_ATTR_BG_SCAN_PERIOD,
5624 params->bg_scan_period))
5625 return -1;
5626 }
5627
5628 if (params->ssid) {
5629 wpa_printf(MSG_DEBUG, " * SSID=%s",
5630 wpa_ssid_txt(params->ssid, params->ssid_len));
5631 if (nla_put(msg, NL80211_ATTR_SSID, params->ssid_len,
5632 params->ssid))
5633 return -1;
5634 if (params->ssid_len > sizeof(drv->ssid))
5635 return -1;
5636 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
5637 drv->ssid_len = params->ssid_len;
5638 }
5639
5640 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
5641 if (params->wpa_ie &&
5642 nla_put(msg, NL80211_ATTR_IE, params->wpa_ie_len, params->wpa_ie))
5643 return -1;
5644
5645 if (params->wpa_proto) {
5646 enum nl80211_wpa_versions ver = 0;
5647
5648 if (params->wpa_proto & WPA_PROTO_WPA)
5649 ver |= NL80211_WPA_VERSION_1;
5650 if (params->wpa_proto & WPA_PROTO_RSN)
5651 ver |= NL80211_WPA_VERSION_2;
5652
5653 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver);
5654 if (nla_put_u32(msg, NL80211_ATTR_WPA_VERSIONS, ver))
5655 return -1;
5656 }
5657
5658 if (params->pairwise_suite != WPA_CIPHER_NONE) {
5659 u32 cipher = wpa_cipher_to_cipher_suite(params->pairwise_suite);
5660 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher);
5661 if (nla_put_u32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE,
5662 cipher))
5663 return -1;
5664 }
5665
5666 if (params->group_suite == WPA_CIPHER_GTK_NOT_USED &&
5667 !(drv->capa.enc & WPA_DRIVER_CAPA_ENC_GTK_NOT_USED)) {
5668 /*
5669 * This is likely to work even though many drivers do not
5670 * advertise support for operations without GTK.
5671 */
5672 wpa_printf(MSG_DEBUG, " * skip group cipher configuration for GTK_NOT_USED due to missing driver support advertisement");
5673 } else if (params->group_suite != WPA_CIPHER_NONE) {
5674 u32 cipher = wpa_cipher_to_cipher_suite(params->group_suite);
5675 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher);
5676 if (nla_put_u32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher))
5677 return -1;
5678 }
5679
5680 if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X ||
5681 params->key_mgmt_suite == WPA_KEY_MGMT_PSK ||
5682 params->key_mgmt_suite == WPA_KEY_MGMT_FT_IEEE8021X ||
5683 params->key_mgmt_suite == WPA_KEY_MGMT_FT_PSK ||
5684 params->key_mgmt_suite == WPA_KEY_MGMT_CCKM ||
5685 params->key_mgmt_suite == WPA_KEY_MGMT_OSEN ||
5686 params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SHA256 ||
5687 params->key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256 ||
5688 params->key_mgmt_suite == WPA_KEY_MGMT_SAE ||
5689 params->key_mgmt_suite == WPA_KEY_MGMT_FT_SAE ||
5690 params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SUITE_B ||
5691 params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SUITE_B_192 ||
5692 params->key_mgmt_suite == WPA_KEY_MGMT_FT_IEEE8021X_SHA384 ||
5693 params->key_mgmt_suite == WPA_KEY_MGMT_FILS_SHA256 ||
5694 params->key_mgmt_suite == WPA_KEY_MGMT_FILS_SHA384 ||
5695 params->key_mgmt_suite == WPA_KEY_MGMT_FT_FILS_SHA256 ||
5696 params->key_mgmt_suite == WPA_KEY_MGMT_FT_FILS_SHA384 ||
5697 params->key_mgmt_suite == WPA_KEY_MGMT_OWE ||
5698 params->key_mgmt_suite == WPA_KEY_MGMT_DPP) {
5699 int mgmt = RSN_AUTH_KEY_MGMT_PSK_OVER_802_1X;
5700
5701 switch (params->key_mgmt_suite) {
5702 case WPA_KEY_MGMT_CCKM:
5703 mgmt = RSN_AUTH_KEY_MGMT_CCKM;
5704 break;
5705 case WPA_KEY_MGMT_IEEE8021X:
5706 mgmt = RSN_AUTH_KEY_MGMT_UNSPEC_802_1X;
5707 break;
5708 case WPA_KEY_MGMT_FT_IEEE8021X:
5709 mgmt = RSN_AUTH_KEY_MGMT_FT_802_1X;
5710 break;
5711 case WPA_KEY_MGMT_FT_PSK:
5712 mgmt = RSN_AUTH_KEY_MGMT_FT_PSK;
5713 break;
5714 case WPA_KEY_MGMT_IEEE8021X_SHA256:
5715 mgmt = RSN_AUTH_KEY_MGMT_802_1X_SHA256;
5716 break;
5717 case WPA_KEY_MGMT_PSK_SHA256:
5718 mgmt = RSN_AUTH_KEY_MGMT_PSK_SHA256;
5719 break;
5720 case WPA_KEY_MGMT_OSEN:
5721 mgmt = RSN_AUTH_KEY_MGMT_OSEN;
5722 break;
5723 case WPA_KEY_MGMT_SAE:
5724 mgmt = RSN_AUTH_KEY_MGMT_SAE;
5725 break;
5726 case WPA_KEY_MGMT_FT_SAE:
5727 mgmt = RSN_AUTH_KEY_MGMT_FT_SAE;
5728 break;
5729 case WPA_KEY_MGMT_IEEE8021X_SUITE_B:
5730 mgmt = RSN_AUTH_KEY_MGMT_802_1X_SUITE_B;
5731 break;
5732 case WPA_KEY_MGMT_IEEE8021X_SUITE_B_192:
5733 mgmt = RSN_AUTH_KEY_MGMT_802_1X_SUITE_B_192;
5734 break;
5735 case WPA_KEY_MGMT_FT_IEEE8021X_SHA384:
5736 mgmt = RSN_AUTH_KEY_MGMT_FT_802_1X_SHA384;
5737 break;
5738 case WPA_KEY_MGMT_FILS_SHA256:
5739 mgmt = RSN_AUTH_KEY_MGMT_FILS_SHA256;
5740 break;
5741 case WPA_KEY_MGMT_FILS_SHA384:
5742 mgmt = RSN_AUTH_KEY_MGMT_FILS_SHA384;
5743 break;
5744 case WPA_KEY_MGMT_FT_FILS_SHA256:
5745 mgmt = RSN_AUTH_KEY_MGMT_FT_FILS_SHA256;
5746 break;
5747 case WPA_KEY_MGMT_FT_FILS_SHA384:
5748 mgmt = RSN_AUTH_KEY_MGMT_FT_FILS_SHA384;
5749 break;
5750 case WPA_KEY_MGMT_OWE:
5751 mgmt = RSN_AUTH_KEY_MGMT_OWE;
5752 break;
5753 case WPA_KEY_MGMT_DPP:
5754 mgmt = RSN_AUTH_KEY_MGMT_DPP;
5755 break;
5756 case WPA_KEY_MGMT_PSK:
5757 default:
5758 mgmt = RSN_AUTH_KEY_MGMT_PSK_OVER_802_1X;
5759 break;
5760 }
5761 wpa_printf(MSG_DEBUG, " * akm=0x%x", mgmt);
5762 if (nla_put_u32(msg, NL80211_ATTR_AKM_SUITES, mgmt))
5763 return -1;
5764 }
5765
5766 if (params->req_handshake_offload &&
5767 (drv->capa.flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_8021X)) {
5768 wpa_printf(MSG_DEBUG, " * WANT_1X_4WAY_HS");
5769 if (nla_put_flag(msg, NL80211_ATTR_WANT_1X_4WAY_HS))
5770 return -1;
5771 }
5772
5773 /* Add PSK in case of 4-way handshake offload */
5774 if (params->psk &&
5775 (drv->capa.flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_PSK)) {
5776 wpa_hexdump_key(MSG_DEBUG, " * PSK", params->psk, 32);
5777 if (nla_put(msg, NL80211_ATTR_PMK, 32, params->psk))
5778 return -1;
5779 }
5780
5781 if (nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT))
5782 return -1;
5783
5784 if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
5785 (params->pairwise_suite == WPA_CIPHER_NONE ||
5786 params->pairwise_suite == WPA_CIPHER_WEP104 ||
5787 params->pairwise_suite == WPA_CIPHER_WEP40) &&
5788 (nla_put_u16(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE, ETH_P_PAE) ||
5789 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT)))
5790 return -1;
5791
5792 if (params->rrm_used) {
5793 u32 drv_rrm_flags = drv->capa.rrm_flags;
5794 if ((!((drv_rrm_flags &
5795 WPA_DRIVER_FLAGS_DS_PARAM_SET_IE_IN_PROBES) &&
5796 (drv_rrm_flags & WPA_DRIVER_FLAGS_QUIET)) &&
5797 !(drv_rrm_flags & WPA_DRIVER_FLAGS_SUPPORT_RRM)) ||
5798 nla_put_flag(msg, NL80211_ATTR_USE_RRM))
5799 return -1;
5800 }
5801
5802 if (nl80211_ht_vht_overrides(msg, params) < 0)
5803 return -1;
5804
5805 if (params->p2p)
5806 wpa_printf(MSG_DEBUG, " * P2P group");
5807
5808 if (params->pbss) {
5809 wpa_printf(MSG_DEBUG, " * PBSS");
5810 if (nla_put_flag(msg, NL80211_ATTR_PBSS))
5811 return -1;
5812 }
5813
5814 drv->connect_reassoc = 0;
5815 if (params->prev_bssid) {
5816 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR,
5817 MAC2STR(params->prev_bssid));
5818 if (nla_put(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN,
5819 params->prev_bssid))
5820 return -1;
5821 drv->connect_reassoc = 1;
5822 }
5823
5824 if ((params->auth_alg & WPA_AUTH_ALG_FILS) &&
5825 nl80211_put_fils_connect_params(drv, params, msg) != 0)
5826 return -1;
5827
5828 if ((params->key_mgmt_suite == WPA_KEY_MGMT_SAE ||
5829 params->key_mgmt_suite == WPA_KEY_MGMT_FT_SAE) &&
5830 (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) &&
5831 nla_put_flag(msg, NL80211_ATTR_EXTERNAL_AUTH_SUPPORT))
5832 return -1;
5833
5834 return 0;
5835 }
5836
5837
5838 static int wpa_driver_nl80211_try_connect(
5839 struct wpa_driver_nl80211_data *drv,
5840 struct wpa_driver_associate_params *params,
5841 struct nl_sock *nl_connect)
5842 {
5843 struct nl_msg *msg;
5844 enum nl80211_auth_type type;
5845 int ret;
5846 int algs;
5847
5848 #ifdef CONFIG_DRIVER_NL80211_QCA
5849 if (params->req_key_mgmt_offload && params->psk &&
5850 (params->key_mgmt_suite == WPA_KEY_MGMT_PSK ||
5851 params->key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256 ||
5852 params->key_mgmt_suite == WPA_KEY_MGMT_FT_PSK)) {
5853 wpa_printf(MSG_DEBUG, "nl80211: Key management set PSK");
5854 ret = issue_key_mgmt_set_key(drv, params->psk, 32);
5855 if (ret)
5856 return ret;
5857 }
5858 #endif /* CONFIG_DRIVER_NL80211_QCA */
5859
5860 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex);
5861 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_CONNECT);
5862 if (!msg)
5863 return -1;
5864
5865 ret = nl80211_connect_common(drv, params, msg);
5866 if (ret)
5867 goto fail;
5868
5869 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED &&
5870 nla_put_u32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED))
5871 goto fail;
5872
5873 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_OPTIONAL &&
5874 (drv->capa.flags & WPA_DRIVER_FLAGS_MFP_OPTIONAL) &&
5875 nla_put_u32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_OPTIONAL))
5876 goto fail;
5877
5878 algs = 0;
5879 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
5880 algs++;
5881 if (params->auth_alg & WPA_AUTH_ALG_SHARED)
5882 algs++;
5883 if (params->auth_alg & WPA_AUTH_ALG_LEAP)
5884 algs++;
5885 if (params->auth_alg & WPA_AUTH_ALG_FILS)
5886 algs++;
5887 if (params->auth_alg & WPA_AUTH_ALG_FT)
5888 algs++;
5889 if (algs > 1) {
5890 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic "
5891 "selection");
5892 goto skip_auth_type;
5893 }
5894
5895 type = get_nl_auth_type(params->auth_alg);
5896 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
5897 if (type == NL80211_AUTHTYPE_MAX ||
5898 nla_put_u32(msg, NL80211_ATTR_AUTH_TYPE, type))
5899 goto fail;
5900
5901 skip_auth_type:
5902 ret = nl80211_set_conn_keys(params, msg);
5903 if (ret)
5904 goto fail;
5905
5906 if (nl_connect)
5907 ret = send_and_recv(drv->global, nl_connect, msg,
5908 NULL, (void *) -1);
5909 else
5910 ret = send_and_recv_msgs(drv, msg, NULL, (void *) -1);
5911
5912 msg = NULL;
5913 if (ret) {
5914 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d "
5915 "(%s)", ret, strerror(-ret));
5916 } else {
5917 wpa_printf(MSG_DEBUG,
5918 "nl80211: Connect request send successfully");
5919 }
5920
5921 fail:
5922 nl80211_nlmsg_clear(msg);
5923 nlmsg_free(msg);
5924 return ret;
5925
5926 }
5927
5928
5929 static int wpa_driver_nl80211_connect(
5930 struct wpa_driver_nl80211_data *drv,
5931 struct wpa_driver_associate_params *params,
5932 struct nl_sock *nl_connect)
5933 {
5934 int ret;
5935
5936 /* Store the connection attempted bssid for future use */
5937 if (params->bssid)
5938 os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN);
5939 else
5940 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN);
5941
5942 ret = wpa_driver_nl80211_try_connect(drv, params, nl_connect);
5943 if (ret == -EALREADY) {
5944 /*
5945 * cfg80211 does not currently accept new connections if
5946 * we are already connected. As a workaround, force
5947 * disconnection and try again.
5948 */
5949 wpa_printf(MSG_DEBUG, "nl80211: Explicitly "
5950 "disconnecting before reassociation "
5951 "attempt");
5952 if (wpa_driver_nl80211_disconnect(
5953 drv, WLAN_REASON_PREV_AUTH_NOT_VALID, nl_connect))
5954 return -1;
5955 ret = wpa_driver_nl80211_try_connect(drv, params, nl_connect);
5956 }
5957 return ret;
5958 }
5959
5960
5961 static int wpa_driver_nl80211_associate(
5962 void *priv, struct wpa_driver_associate_params *params)
5963 {
5964 struct i802_bss *bss = priv;
5965 struct wpa_driver_nl80211_data *drv = bss->drv;
5966 int ret = -1;
5967 struct nl_msg *msg;
5968
5969 nl80211_unmask_11b_rates(bss);
5970
5971 if (params->mode == IEEE80211_MODE_AP)
5972 return wpa_driver_nl80211_ap(drv, params);
5973
5974 if (params->mode == IEEE80211_MODE_IBSS)
5975 return wpa_driver_nl80211_ibss(drv, params);
5976
5977 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) {
5978 enum nl80211_iftype nlmode = params->p2p ?
5979 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
5980 struct nl_sock *nl_connect = NULL;
5981
5982 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0)
5983 return -1;
5984 if (params->key_mgmt_suite == WPA_KEY_MGMT_SAE ||
5985 params->key_mgmt_suite == WPA_KEY_MGMT_FT_SAE) {
5986 nl_connect = bss->nl_connect;
5987 bss->use_nl_connect = 1;
5988 } else {
5989 bss->use_nl_connect = 0;
5990 }
5991
5992 return wpa_driver_nl80211_connect(drv, params, nl_connect);
5993 }
5994
5995 nl80211_mark_disconnected(drv);
5996
5997 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)",
5998 drv->ifindex);
5999 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_ASSOCIATE);
6000 if (!msg)
6001 return -1;
6002
6003 ret = nl80211_connect_common(drv, params, msg);
6004 if (ret)
6005 goto fail;
6006
6007 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED &&
6008 nla_put_u32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED))
6009 goto fail;
6010
6011 if (params->fils_kek) {
6012 wpa_printf(MSG_DEBUG, " * FILS KEK (len=%u)",
6013 (unsigned int) params->fils_kek_len);
6014 if (nla_put(msg, NL80211_ATTR_FILS_KEK, params->fils_kek_len,
6015 params->fils_kek))
6016 goto fail;
6017 }
6018 if (params->fils_nonces) {
6019 wpa_hexdump(MSG_DEBUG, " * FILS nonces (for AAD)",
6020 params->fils_nonces,
6021 params->fils_nonces_len);
6022 if (nla_put(msg, NL80211_ATTR_FILS_NONCES,
6023 params->fils_nonces_len, params->fils_nonces))
6024 goto fail;
6025 }
6026
6027 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6028 msg = NULL;
6029 if (ret) {
6030 wpa_dbg(drv->ctx, MSG_DEBUG,
6031 "nl80211: MLME command failed (assoc): ret=%d (%s)",
6032 ret, strerror(-ret));
6033 nl80211_dump_scan(drv);
6034 } else {
6035 wpa_printf(MSG_DEBUG,
6036 "nl80211: Association request send successfully");
6037 }
6038
6039 fail:
6040 nlmsg_free(msg);
6041 return ret;
6042 }
6043
6044
6045 static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv,
6046 int ifindex, enum nl80211_iftype mode)
6047 {
6048 struct nl_msg *msg;
6049 int ret = -ENOBUFS;
6050
6051 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)",
6052 ifindex, mode, nl80211_iftype_str(mode));
6053
6054 msg = nl80211_cmd_msg(drv->first_bss, 0, NL80211_CMD_SET_INTERFACE);
6055 if (!msg || nla_put_u32(msg, NL80211_ATTR_IFTYPE, mode))
6056 goto fail;
6057
6058 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6059 msg = NULL;
6060 if (!ret)
6061 return 0;
6062 fail:
6063 nlmsg_free(msg);
6064 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:"
6065 " %d (%s)", ifindex, mode, ret, strerror(-ret));
6066 return ret;
6067 }
6068
6069
6070 static int wpa_driver_nl80211_set_mode_impl(
6071 struct i802_bss *bss,
6072 enum nl80211_iftype nlmode,
6073 struct hostapd_freq_params *desired_freq_params)
6074 {
6075 struct wpa_driver_nl80211_data *drv = bss->drv;
6076 int ret = -1;
6077 int i;
6078 int was_ap = is_ap_interface(drv->nlmode);
6079 int res;
6080 int mode_switch_res;
6081
6082 if (TEST_FAIL())
6083 return -1;
6084
6085 mode_switch_res = nl80211_set_mode(drv, drv->ifindex, nlmode);
6086 if (mode_switch_res && nlmode == nl80211_get_ifmode(bss))
6087 mode_switch_res = 0;
6088
6089 if (mode_switch_res == 0) {
6090 drv->nlmode = nlmode;
6091 ret = 0;
6092 goto done;
6093 }
6094
6095 if (mode_switch_res == -ENODEV)
6096 return -1;
6097
6098 if (nlmode == drv->nlmode) {
6099 wpa_printf(MSG_DEBUG, "nl80211: Interface already in "
6100 "requested mode - ignore error");
6101 ret = 0;
6102 goto done; /* Already in the requested mode */
6103 }
6104
6105 /* mac80211 doesn't allow mode changes while the device is up, so
6106 * take the device down, try to set the mode again, and bring the
6107 * device back up.
6108 */
6109 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting "
6110 "interface down");
6111 for (i = 0; i < 10; i++) {
6112 res = i802_set_iface_flags(bss, 0);
6113 if (res == -EACCES || res == -ENODEV)
6114 break;
6115 if (res != 0) {
6116 wpa_printf(MSG_DEBUG, "nl80211: Failed to set "
6117 "interface down");
6118 os_sleep(0, 100000);
6119 continue;
6120 }
6121
6122 /*
6123 * Setting the mode will fail for some drivers if the phy is
6124 * on a frequency that the mode is disallowed in.
6125 */
6126 if (desired_freq_params) {
6127 res = nl80211_set_channel(bss, desired_freq_params, 0);
6128 if (res) {
6129 wpa_printf(MSG_DEBUG,
6130 "nl80211: Failed to set frequency on interface");
6131 }
6132 }
6133
6134 /* Try to set the mode again while the interface is down */
6135 mode_switch_res = nl80211_set_mode(drv, drv->ifindex, nlmode);
6136 if (mode_switch_res == -EBUSY) {
6137 wpa_printf(MSG_DEBUG,
6138 "nl80211: Delaying mode set while interface going down");
6139 os_sleep(0, 100000);
6140 continue;
6141 }
6142 ret = mode_switch_res;
6143 break;
6144 }
6145
6146 if (!ret) {
6147 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while "
6148 "interface is down");
6149 drv->nlmode = nlmode;
6150 drv->ignore_if_down_event = 1;
6151 }
6152
6153 /* Bring the interface back up */
6154 res = linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1);
6155 if (res != 0) {
6156 wpa_printf(MSG_DEBUG,
6157 "nl80211: Failed to set interface up after switching mode");
6158 ret = -1;
6159 }
6160
6161 done:
6162 if (ret) {
6163 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d "
6164 "from %d failed", nlmode, drv->nlmode);
6165 return ret;
6166 }
6167
6168 if (is_p2p_net_interface(nlmode)) {
6169 wpa_printf(MSG_DEBUG,
6170 "nl80211: Interface %s mode change to P2P - disable 11b rates",
6171 bss->ifname);
6172 nl80211_disable_11b_rates(drv, drv->ifindex, 1);
6173 } else if (drv->disabled_11b_rates) {
6174 wpa_printf(MSG_DEBUG,
6175 "nl80211: Interface %s mode changed to non-P2P - re-enable 11b rates",
6176 bss->ifname);
6177 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
6178 }
6179
6180 if (is_ap_interface(nlmode)) {
6181 nl80211_mgmt_unsubscribe(bss, "start AP");
6182 /* Setup additional AP mode functionality if needed */
6183 if (nl80211_setup_ap(bss))
6184 return -1;
6185 } else if (was_ap) {
6186 /* Remove additional AP mode functionality */
6187 nl80211_teardown_ap(bss);
6188 } else {
6189 nl80211_mgmt_unsubscribe(bss, "mode change");
6190 }
6191
6192 if (is_mesh_interface(nlmode) &&
6193 nl80211_mgmt_subscribe_mesh(bss))
6194 return -1;
6195
6196 if (!bss->in_deinit && !is_ap_interface(nlmode) &&
6197 !is_mesh_interface(nlmode) &&
6198 nl80211_mgmt_subscribe_non_ap(bss) < 0)
6199 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action "
6200 "frame processing - ignore for now");
6201
6202 return 0;
6203 }
6204
6205
6206 int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
6207 enum nl80211_iftype nlmode)
6208 {
6209 return wpa_driver_nl80211_set_mode_impl(bss, nlmode, NULL);
6210 }
6211
6212
6213 static int wpa_driver_nl80211_set_mode_ibss(struct i802_bss *bss,
6214 struct hostapd_freq_params *freq)
6215 {
6216 return wpa_driver_nl80211_set_mode_impl(bss, NL80211_IFTYPE_ADHOC,
6217 freq);
6218 }
6219
6220
6221 static int wpa_driver_nl80211_get_capa(void *priv,
6222 struct wpa_driver_capa *capa)
6223 {
6224 struct i802_bss *bss = priv;
6225 struct wpa_driver_nl80211_data *drv = bss->drv;
6226
6227 if (!drv->has_capability)
6228 return -1;
6229 os_memcpy(capa, &drv->capa, sizeof(*capa));
6230 if (drv->extended_capa && drv->extended_capa_mask) {
6231 capa->extended_capa = drv->extended_capa;
6232 capa->extended_capa_mask = drv->extended_capa_mask;
6233 capa->extended_capa_len = drv->extended_capa_len;
6234 }
6235
6236 return 0;
6237 }
6238
6239
6240 static int wpa_driver_nl80211_set_operstate(void *priv, int state)
6241 {
6242 struct i802_bss *bss = priv;
6243 struct wpa_driver_nl80211_data *drv = bss->drv;
6244
6245 wpa_printf(MSG_DEBUG, "nl80211: Set %s operstate %d->%d (%s)",
6246 bss->ifname, drv->operstate, state,
6247 state ? "UP" : "DORMANT");
6248 drv->operstate = state;
6249 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1,
6250 state ? IF_OPER_UP : IF_OPER_DORMANT);
6251 }
6252
6253
6254 static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized)
6255 {
6256 struct i802_bss *bss = priv;
6257 struct wpa_driver_nl80211_data *drv = bss->drv;
6258 struct nl_msg *msg;
6259 struct nl80211_sta_flag_update upd;
6260 int ret;
6261
6262 if (!drv->associated && is_zero_ether_addr(drv->bssid) && !authorized) {
6263 wpa_printf(MSG_DEBUG, "nl80211: Skip set_supp_port(unauthorized) while not associated");
6264 return 0;
6265 }
6266
6267 wpa_printf(MSG_DEBUG, "nl80211: Set supplicant port %sauthorized for "
6268 MACSTR, authorized ? "" : "un", MAC2STR(drv->bssid));
6269
6270 os_memset(&upd, 0, sizeof(upd));
6271 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED);
6272 if (authorized)
6273 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED);
6274
6275 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_STATION)) ||
6276 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid) ||
6277 nla_put(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd)) {
6278 nlmsg_free(msg);
6279 return -ENOBUFS;
6280 }
6281
6282 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6283 if (!ret)
6284 return 0;
6285 wpa_printf(MSG_DEBUG, "nl80211: Failed to set STA flag: %d (%s)",
6286 ret, strerror(-ret));
6287 return ret;
6288 }
6289
6290
6291 /* Set kernel driver on given frequency (MHz) */
6292 static int i802_set_freq(void *priv, struct hostapd_freq_params *freq)
6293 {
6294 struct i802_bss *bss = priv;
6295 return nl80211_set_channel(bss, freq, 0);
6296 }
6297
6298
6299 static inline int min_int(int a, int b)
6300 {
6301 if (a < b)
6302 return a;
6303 return b;
6304 }
6305
6306
6307 static int get_key_handler(struct nl_msg *msg, void *arg)
6308 {
6309 struct nlattr *tb[NL80211_ATTR_MAX + 1];
6310 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
6311
6312 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
6313 genlmsg_attrlen(gnlh, 0), NULL);
6314
6315 /*
6316 * TODO: validate the key index and mac address!
6317 * Otherwise, there's a race condition as soon as
6318 * the kernel starts sending key notifications.
6319 */
6320
6321 if (tb[NL80211_ATTR_KEY_SEQ])
6322 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]),
6323 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6));
6324 nl80211_nlmsg_clear(msg);
6325 return NL_SKIP;
6326 }
6327
6328
6329 static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
6330 int idx, u8 *seq)
6331 {
6332 struct i802_bss *bss = priv;
6333 struct wpa_driver_nl80211_data *drv = bss->drv;
6334 struct nl_msg *msg;
6335
6336 msg = nl80211_ifindex_msg(drv, if_nametoindex(iface), 0,
6337 NL80211_CMD_GET_KEY);
6338 if (!msg ||
6339 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
6340 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, idx)) {
6341 nlmsg_free(msg);
6342 return -ENOBUFS;
6343 }
6344
6345 memset(seq, 0, 6);
6346
6347 return send_and_recv_msgs(drv, msg, get_key_handler, seq);
6348 }
6349
6350
6351 static int i802_set_rts(void *priv, int rts)
6352 {
6353 struct i802_bss *bss = priv;
6354 struct wpa_driver_nl80211_data *drv = bss->drv;
6355 struct nl_msg *msg;
6356 int ret;
6357 u32 val;
6358
6359 if (rts >= 2347 || rts == -1)
6360 val = (u32) -1;
6361 else
6362 val = rts;
6363
6364 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_SET_WIPHY)) ||
6365 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val)) {
6366 nlmsg_free(msg);
6367 return -ENOBUFS;
6368 }
6369
6370 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6371 if (!ret)
6372 return 0;
6373 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: "
6374 "%d (%s)", rts, ret, strerror(-ret));
6375 return ret;
6376 }
6377
6378
6379 static int i802_set_frag(void *priv, int frag)
6380 {
6381 struct i802_bss *bss = priv;
6382 struct wpa_driver_nl80211_data *drv = bss->drv;
6383 struct nl_msg *msg;
6384 int ret;
6385 u32 val;
6386
6387 if (frag >= 2346 || frag == -1)
6388 val = (u32) -1;
6389 else
6390 val = frag;
6391
6392 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_SET_WIPHY)) ||
6393 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val)) {
6394 nlmsg_free(msg);
6395 return -ENOBUFS;
6396 }
6397
6398 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6399 if (!ret)
6400 return 0;
6401 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold "
6402 "%d: %d (%s)", frag, ret, strerror(-ret));
6403 return ret;
6404 }
6405
6406
6407 static int i802_flush(void *priv)
6408 {
6409 struct i802_bss *bss = priv;
6410 struct nl_msg *msg;
6411 int res;
6412
6413 wpa_printf(MSG_DEBUG, "nl80211: flush -> DEL_STATION %s (all)",
6414 bss->ifname);
6415
6416 /*
6417 * XXX: FIX! this needs to flush all VLANs too
6418 */
6419 msg = nl80211_bss_msg(bss, 0, NL80211_CMD_DEL_STATION);
6420 res = send_and_recv_msgs(bss->drv, msg, NULL, NULL);
6421 if (res) {
6422 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d "
6423 "(%s)", res, strerror(-res));
6424 }
6425 return res;
6426 }
6427
6428
6429 static void get_sta_tid_stats(struct hostap_sta_driver_data *data,
6430 struct nlattr *attr)
6431 {
6432 struct nlattr *tid_stats[NL80211_TID_STATS_MAX + 1], *tidattr;
6433 struct nlattr *txq_stats[NL80211_TXQ_STATS_MAX + 1];
6434 static struct nla_policy txq_stats_policy[NL80211_TXQ_STATS_MAX + 1] = {
6435 [NL80211_TXQ_STATS_BACKLOG_BYTES] = { .type = NLA_U32 },
6436 [NL80211_TXQ_STATS_BACKLOG_PACKETS] = { .type = NLA_U32 },
6437 };
6438 int rem;
6439
6440 nla_for_each_nested(tidattr, attr, rem) {
6441 if (nla_parse_nested(tid_stats, NL80211_TID_STATS_MAX,
6442 tidattr, NULL) != 0 ||
6443 !tid_stats[NL80211_TID_STATS_TXQ_STATS] ||
6444 nla_parse_nested(txq_stats, NL80211_TXQ_STATS_MAX,
6445 tid_stats[NL80211_TID_STATS_TXQ_STATS],
6446 txq_stats_policy) != 0)
6447 continue;
6448 /* sum the backlogs over all TIDs for station */
6449 if (txq_stats[NL80211_TXQ_STATS_BACKLOG_BYTES])
6450 data->backlog_bytes += nla_get_u32(
6451 txq_stats[NL80211_TXQ_STATS_BACKLOG_BYTES]);
6452 if (txq_stats[NL80211_TXQ_STATS_BACKLOG_PACKETS])
6453 data->backlog_bytes += nla_get_u32(
6454 txq_stats[NL80211_TXQ_STATS_BACKLOG_PACKETS]);
6455 }
6456 }
6457
6458
6459 static int get_sta_handler(struct nl_msg *msg, void *arg)
6460 {
6461 struct nlattr *tb[NL80211_ATTR_MAX + 1];
6462 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
6463 struct hostap_sta_driver_data *data = arg;
6464 struct nlattr *stats[NL80211_STA_INFO_MAX + 1];
6465 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
6466 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
6467 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
6468 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
6469 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
6470 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
6471 [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 },
6472 [NL80211_STA_INFO_RX_BYTES64] = { .type = NLA_U64 },
6473 [NL80211_STA_INFO_TX_BYTES64] = { .type = NLA_U64 },
6474 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 },
6475 [NL80211_STA_INFO_ACK_SIGNAL] = { .type = NLA_U8 },
6476 [NL80211_STA_INFO_RX_DURATION] = { .type = NLA_U64 },
6477 [NL80211_STA_INFO_TX_DURATION] = { .type = NLA_U64 },
6478 };
6479 struct nlattr *rate[NL80211_RATE_INFO_MAX + 1];
6480 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = {
6481 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 },
6482 [NL80211_RATE_INFO_BITRATE32] = { .type = NLA_U32 },
6483 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 },
6484 [NL80211_RATE_INFO_VHT_MCS] = { .type = NLA_U8 },
6485 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG },
6486 [NL80211_RATE_INFO_VHT_NSS] = { .type = NLA_U8 },
6487 };
6488
6489 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
6490 genlmsg_attrlen(gnlh, 0), NULL);
6491
6492 /*
6493 * TODO: validate the interface and mac address!
6494 * Otherwise, there's a race condition as soon as
6495 * the kernel starts sending station notifications.
6496 */
6497
6498 if (!tb[NL80211_ATTR_STA_INFO]) {
6499 wpa_printf(MSG_DEBUG, "sta stats missing!");
6500 return NL_SKIP;
6501 }
6502 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX,
6503 tb[NL80211_ATTR_STA_INFO],
6504 stats_policy)) {
6505 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!");
6506 return NL_SKIP;
6507 }
6508
6509 if (stats[NL80211_STA_INFO_INACTIVE_TIME])
6510 data->inactive_msec =
6511 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]);
6512 /* For backwards compatibility, fetch the 32-bit counters first. */
6513 if (stats[NL80211_STA_INFO_RX_BYTES])
6514 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]);
6515 if (stats[NL80211_STA_INFO_TX_BYTES])
6516 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]);
6517 if (stats[NL80211_STA_INFO_RX_BYTES64] &&
6518 stats[NL80211_STA_INFO_TX_BYTES64]) {
6519 /*
6520 * The driver supports 64-bit counters, so use them to override
6521 * the 32-bit values.
6522 */
6523 data->rx_bytes =
6524 nla_get_u64(stats[NL80211_STA_INFO_RX_BYTES64]);
6525 data->tx_bytes =
6526 nla_get_u64(stats[NL80211_STA_INFO_TX_BYTES64]);
6527 data->bytes_64bit = 1;
6528 }
6529 if (stats[NL80211_STA_INFO_RX_PACKETS])
6530 data->rx_packets =
6531 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]);
6532 if (stats[NL80211_STA_INFO_TX_PACKETS])
6533 data->tx_packets =
6534 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]);
6535 if (stats[NL80211_STA_INFO_RX_DURATION])
6536 data->rx_airtime =
6537 nla_get_u64(stats[NL80211_STA_INFO_RX_DURATION]);
6538 if (stats[NL80211_STA_INFO_TX_DURATION])
6539 data->tx_airtime =
6540 nla_get_u64(stats[NL80211_STA_INFO_TX_DURATION]);
6541 if (stats[NL80211_STA_INFO_TX_FAILED])
6542 data->tx_retry_failed =
6543 nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]);
6544 if (stats[NL80211_STA_INFO_SIGNAL])
6545 data->signal = nla_get_u8(stats[NL80211_STA_INFO_SIGNAL]);
6546 if (stats[NL80211_STA_INFO_ACK_SIGNAL]) {
6547 data->last_ack_rssi =
6548 nla_get_u8(stats[NL80211_STA_INFO_ACK_SIGNAL]);
6549 data->flags |= STA_DRV_DATA_LAST_ACK_RSSI;
6550 }
6551
6552 if (stats[NL80211_STA_INFO_TX_BITRATE] &&
6553 nla_parse_nested(rate, NL80211_RATE_INFO_MAX,
6554 stats[NL80211_STA_INFO_TX_BITRATE],
6555 rate_policy) == 0) {
6556 if (rate[NL80211_RATE_INFO_BITRATE32])
6557 data->current_tx_rate =
6558 nla_get_u32(rate[NL80211_RATE_INFO_BITRATE32]);
6559 else if (rate[NL80211_RATE_INFO_BITRATE])
6560 data->current_tx_rate =
6561 nla_get_u16(rate[NL80211_RATE_INFO_BITRATE]);
6562
6563 if (rate[NL80211_RATE_INFO_MCS]) {
6564 data->tx_mcs = nla_get_u8(rate[NL80211_RATE_INFO_MCS]);
6565 data->flags |= STA_DRV_DATA_TX_MCS;
6566 }
6567 if (rate[NL80211_RATE_INFO_VHT_MCS]) {
6568 data->tx_vhtmcs =
6569 nla_get_u8(rate[NL80211_RATE_INFO_VHT_MCS]);
6570 data->flags |= STA_DRV_DATA_TX_VHT_MCS;
6571 }
6572 if (rate[NL80211_RATE_INFO_SHORT_GI])
6573 data->flags |= STA_DRV_DATA_TX_SHORT_GI;
6574 if (rate[NL80211_RATE_INFO_VHT_NSS]) {
6575 data->tx_vht_nss =
6576 nla_get_u8(rate[NL80211_RATE_INFO_VHT_NSS]);
6577 data->flags |= STA_DRV_DATA_TX_VHT_NSS;
6578 }
6579 }
6580
6581 if (stats[NL80211_STA_INFO_RX_BITRATE] &&
6582 nla_parse_nested(rate, NL80211_RATE_INFO_MAX,
6583 stats[NL80211_STA_INFO_RX_BITRATE],
6584 rate_policy) == 0) {
6585 if (rate[NL80211_RATE_INFO_BITRATE32])
6586 data->current_rx_rate =
6587 nla_get_u32(rate[NL80211_RATE_INFO_BITRATE32]);
6588 else if (rate[NL80211_RATE_INFO_BITRATE])
6589 data->current_rx_rate =
6590 nla_get_u16(rate[NL80211_RATE_INFO_BITRATE]);
6591
6592 if (rate[NL80211_RATE_INFO_MCS]) {
6593 data->rx_mcs =
6594 nla_get_u8(rate[NL80211_RATE_INFO_MCS]);
6595 data->flags |= STA_DRV_DATA_RX_MCS;
6596 }
6597 if (rate[NL80211_RATE_INFO_VHT_MCS]) {
6598 data->rx_vhtmcs =
6599 nla_get_u8(rate[NL80211_RATE_INFO_VHT_MCS]);
6600 data->flags |= STA_DRV_DATA_RX_VHT_MCS;
6601 }
6602 if (rate[NL80211_RATE_INFO_SHORT_GI])
6603 data->flags |= STA_DRV_DATA_RX_SHORT_GI;
6604 if (rate[NL80211_RATE_INFO_VHT_NSS]) {
6605 data->rx_vht_nss =
6606 nla_get_u8(rate[NL80211_RATE_INFO_VHT_NSS]);
6607 data->flags |= STA_DRV_DATA_RX_VHT_NSS;
6608 }
6609 }
6610
6611 if (stats[NL80211_STA_INFO_TID_STATS])
6612 get_sta_tid_stats(data, stats[NL80211_STA_INFO_TID_STATS]);
6613
6614 return NL_SKIP;
6615 }
6616
6617 static int i802_read_sta_data(struct i802_bss *bss,
6618 struct hostap_sta_driver_data *data,
6619 const u8 *addr)
6620 {
6621 struct nl_msg *msg;
6622
6623 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_GET_STATION)) ||
6624 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) {
6625 nlmsg_free(msg);
6626 return -ENOBUFS;
6627 }
6628
6629 return send_and_recv_msgs(bss->drv, msg, get_sta_handler, data);
6630 }
6631
6632
6633 static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
6634 int cw_min, int cw_max, int burst_time)
6635 {
6636 struct i802_bss *bss = priv;
6637 struct wpa_driver_nl80211_data *drv = bss->drv;
6638 struct nl_msg *msg;
6639 struct nlattr *txq, *params;
6640 int res;
6641
6642 msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_WIPHY);
6643 if (!msg)
6644 return -1;
6645
6646 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS);
6647 if (!txq)
6648 goto fail;
6649
6650 /* We are only sending parameters for a single TXQ at a time */
6651 params = nla_nest_start(msg, 1);
6652 if (!params)
6653 goto fail;
6654
6655 switch (queue) {
6656 case 0:
6657 if (nla_put_u8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO))
6658 goto fail;
6659 break;
6660 case 1:
6661 if (nla_put_u8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI))
6662 goto fail;
6663 break;
6664 case 2:
6665 if (nla_put_u8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE))
6666 goto fail;
6667 break;
6668 case 3:
6669 if (nla_put_u8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK))
6670 goto fail;
6671 break;
6672 }
6673 /* Burst time is configured in units of 0.1 msec and TXOP parameter in
6674 * 32 usec, so need to convert the value here. */
6675 if (nla_put_u16(msg, NL80211_TXQ_ATTR_TXOP,
6676 (burst_time * 100 + 16) / 32) ||
6677 nla_put_u16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min) ||
6678 nla_put_u16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max) ||
6679 nla_put_u8(msg, NL80211_TXQ_ATTR_AIFS, aifs))
6680 goto fail;
6681
6682 nla_nest_end(msg, params);
6683
6684 nla_nest_end(msg, txq);
6685
6686 res = send_and_recv_msgs(drv, msg, NULL, NULL);
6687 wpa_printf(MSG_DEBUG,
6688 "nl80211: TX queue param set: queue=%d aifs=%d cw_min=%d cw_max=%d burst_time=%d --> res=%d",
6689 queue, aifs, cw_min, cw_max, burst_time, res);
6690 if (res == 0)
6691 return 0;
6692 msg = NULL;
6693 fail:
6694 nlmsg_free(msg);
6695 return -1;
6696 }
6697
6698
6699 static int i802_set_sta_vlan(struct i802_bss *bss, const u8 *addr,
6700 const char *ifname, int vlan_id)
6701 {
6702 struct wpa_driver_nl80211_data *drv = bss->drv;
6703 struct nl_msg *msg;
6704 int ret;
6705
6706 wpa_printf(MSG_DEBUG, "nl80211: %s[%d]: set_sta_vlan(" MACSTR
6707 ", ifname=%s[%d], vlan_id=%d)",
6708 bss->ifname, if_nametoindex(bss->ifname),
6709 MAC2STR(addr), ifname, if_nametoindex(ifname), vlan_id);
6710 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_STATION)) ||
6711 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
6712 ((drv->capa.flags & WPA_DRIVER_FLAGS_VLAN_OFFLOAD) &&
6713 nla_put_u16(msg, NL80211_ATTR_VLAN_ID, vlan_id)) ||
6714 nla_put_u32(msg, NL80211_ATTR_STA_VLAN, if_nametoindex(ifname))) {
6715 nlmsg_free(msg);
6716 return -ENOBUFS;
6717 }
6718
6719 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6720 if (ret < 0) {
6721 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr="
6722 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)",
6723 MAC2STR(addr), ifname, vlan_id, ret,
6724 strerror(-ret));
6725 }
6726 return ret;
6727 }
6728
6729
6730 static int i802_get_inact_sec(void *priv, const u8 *addr)
6731 {
6732 struct hostap_sta_driver_data data;
6733 int ret;
6734
6735 os_memset(&data, 0, sizeof(data));
6736 data.inactive_msec = (unsigned long) -1;
6737 ret = i802_read_sta_data(priv, &data, addr);
6738 if (ret == -ENOENT)
6739 return -ENOENT;
6740 if (ret || data.inactive_msec == (unsigned long) -1)
6741 return -1;
6742 return data.inactive_msec / 1000;
6743 }
6744
6745
6746 static int i802_sta_clear_stats(void *priv, const u8 *addr)
6747 {
6748 #if 0
6749 /* TODO */
6750 #endif
6751 return 0;
6752 }
6753
6754
6755 static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
6756 u16 reason)
6757 {
6758 struct i802_bss *bss = priv;
6759 struct wpa_driver_nl80211_data *drv = bss->drv;
6760 struct ieee80211_mgmt mgmt;
6761 u8 channel;
6762
6763 if (ieee80211_freq_to_chan(bss->freq, &channel) ==
6764 HOSTAPD_MODE_IEEE80211AD) {
6765 /* Deauthentication is not used in DMG/IEEE 802.11ad;
6766 * disassociate the STA instead. */
6767 return i802_sta_disassoc(priv, own_addr, addr, reason);
6768 }
6769
6770 if (is_mesh_interface(drv->nlmode))
6771 return -1;
6772
6773 if (drv->device_ap_sme)
6774 return wpa_driver_nl80211_sta_remove(bss, addr, 1, reason);
6775
6776 memset(&mgmt, 0, sizeof(mgmt));
6777 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
6778 WLAN_FC_STYPE_DEAUTH);
6779 memcpy(mgmt.da, addr, ETH_ALEN);
6780 memcpy(mgmt.sa, own_addr, ETH_ALEN);
6781 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
6782 mgmt.u.deauth.reason_code = host_to_le16(reason);
6783 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
6784 IEEE80211_HDRLEN +
6785 sizeof(mgmt.u.deauth), 0, 0, 0, 0,
6786 0, NULL, 0, 0);
6787 }
6788
6789
6790 static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
6791 u16 reason)
6792 {
6793 struct i802_bss *bss = priv;
6794 struct wpa_driver_nl80211_data *drv = bss->drv;
6795 struct ieee80211_mgmt mgmt;
6796
6797 if (is_mesh_interface(drv->nlmode))
6798 return -1;
6799
6800 if (drv->device_ap_sme)
6801 return wpa_driver_nl80211_sta_remove(bss, addr, 0, reason);
6802
6803 memset(&mgmt, 0, sizeof(mgmt));
6804 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
6805 WLAN_FC_STYPE_DISASSOC);
6806 memcpy(mgmt.da, addr, ETH_ALEN);
6807 memcpy(mgmt.sa, own_addr, ETH_ALEN);
6808 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
6809 mgmt.u.disassoc.reason_code = host_to_le16(reason);
6810 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
6811 IEEE80211_HDRLEN +
6812 sizeof(mgmt.u.disassoc), 0, 0, 0, 0,
6813 0, NULL, 0, 0);
6814 }
6815
6816
6817 static void dump_ifidx(struct wpa_driver_nl80211_data *drv)
6818 {
6819 char buf[200], *pos, *end;
6820 int i, res;
6821
6822 pos = buf;
6823 end = pos + sizeof(buf);
6824
6825 for (i = 0; i < drv->num_if_indices; i++) {
6826 if (!drv->if_indices[i].ifindex)
6827 continue;
6828 res = os_snprintf(pos, end - pos, " %d(%d)",
6829 drv->if_indices[i].ifindex,
6830 drv->if_indices[i].reason);
6831 if (os_snprintf_error(end - pos, res))
6832 break;
6833 pos += res;
6834 }
6835 *pos = '\0';
6836
6837 wpa_printf(MSG_DEBUG, "nl80211: if_indices[%d]:%s",
6838 drv->num_if_indices, buf);
6839 }
6840
6841
6842 static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx,
6843 int ifidx_reason)
6844 {
6845 int i;
6846 struct drv_nl80211_if_info *old;
6847
6848 wpa_printf(MSG_DEBUG,
6849 "nl80211: Add own interface ifindex %d (ifidx_reason %d)",
6850 ifidx, ifidx_reason);
6851 if (have_ifidx(drv, ifidx, ifidx_reason)) {
6852 wpa_printf(MSG_DEBUG, "nl80211: ifindex %d already in the list",
6853 ifidx);
6854 return;
6855 }
6856 for (i = 0; i < drv->num_if_indices; i++) {
6857 if (drv->if_indices[i].ifindex == 0) {
6858 drv->if_indices[i].ifindex = ifidx;
6859 drv->if_indices[i].reason = ifidx_reason;
6860 dump_ifidx(drv);
6861 return;
6862 }
6863 }
6864
6865 if (drv->if_indices != drv->default_if_indices)
6866 old = drv->if_indices;
6867 else
6868 old = NULL;
6869
6870 drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1,
6871 sizeof(*old));
6872 if (!drv->if_indices) {
6873 if (!old)
6874 drv->if_indices = drv->default_if_indices;
6875 else
6876 drv->if_indices = old;
6877 wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
6878 "interfaces");
6879 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
6880 return;
6881 }
6882 if (!old)
6883 os_memcpy(drv->if_indices, drv->default_if_indices,
6884 sizeof(drv->default_if_indices));
6885 drv->if_indices[drv->num_if_indices].ifindex = ifidx;
6886 drv->if_indices[drv->num_if_indices].reason = ifidx_reason;
6887 drv->num_if_indices++;
6888 dump_ifidx(drv);
6889 }
6890
6891
6892 static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx,
6893 int ifidx_reason)
6894 {
6895 int i;
6896
6897 for (i = 0; i < drv->num_if_indices; i++) {
6898 if ((drv->if_indices[i].ifindex == ifidx ||
6899 ifidx == IFIDX_ANY) &&
6900 (drv->if_indices[i].reason == ifidx_reason ||
6901 ifidx_reason == IFIDX_ANY)) {
6902 drv->if_indices[i].ifindex = 0;
6903 drv->if_indices[i].reason = 0;
6904 break;
6905 }
6906 }
6907 dump_ifidx(drv);
6908 }
6909
6910
6911 static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx,
6912 int ifidx_reason)
6913 {
6914 int i;
6915
6916 for (i = 0; i < drv->num_if_indices; i++)
6917 if (drv->if_indices[i].ifindex == ifidx &&
6918 (drv->if_indices[i].reason == ifidx_reason ||
6919 ifidx_reason == IFIDX_ANY))
6920 return 1;
6921
6922 return 0;
6923 }
6924
6925
6926 static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val,
6927 const char *bridge_ifname, char *ifname_wds)
6928 {
6929 struct i802_bss *bss = priv;
6930 struct wpa_driver_nl80211_data *drv = bss->drv;
6931 char name[IFNAMSIZ + 1];
6932 union wpa_event_data event;
6933 int ret;
6934
6935 ret = os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid);
6936 if (ret >= (int) sizeof(name))
6937 wpa_printf(MSG_WARNING,
6938 "nl80211: WDS interface name was truncated");
6939 else if (ret < 0)
6940 return ret;
6941
6942 if (ifname_wds)
6943 os_strlcpy(ifname_wds, name, IFNAMSIZ + 1);
6944
6945 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR
6946 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name);
6947 if (val) {
6948 if (!if_nametoindex(name)) {
6949 if (nl80211_create_iface(drv, name,
6950 NL80211_IFTYPE_AP_VLAN,
6951 bss->addr, 1, NULL, NULL, 0) <
6952 0)
6953 return -1;
6954 if (bridge_ifname &&
6955 linux_br_add_if(drv->global->ioctl_sock,
6956 bridge_ifname, name) < 0)
6957 return -1;
6958
6959 os_memset(&event, 0, sizeof(event));
6960 event.wds_sta_interface.sta_addr = addr;
6961 event.wds_sta_interface.ifname = name;
6962 event.wds_sta_interface.istatus = INTERFACE_ADDED;
6963 wpa_supplicant_event(bss->ctx,
6964 EVENT_WDS_STA_INTERFACE_STATUS,
6965 &event);
6966 }
6967 if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) {
6968 wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA "
6969 "interface %s up", name);
6970 }
6971 return i802_set_sta_vlan(priv, addr, name, 0);
6972 } else {
6973 if (bridge_ifname &&
6974 linux_br_del_if(drv->global->ioctl_sock, bridge_ifname,
6975 name) < 0)
6976 wpa_printf(MSG_INFO,
6977 "nl80211: Failed to remove interface %s from bridge %s: %s",
6978 name, bridge_ifname, strerror(errno));
6979
6980 i802_set_sta_vlan(priv, addr, bss->ifname, 0);
6981 nl80211_remove_iface(drv, if_nametoindex(name));
6982 os_memset(&event, 0, sizeof(event));
6983 event.wds_sta_interface.sta_addr = addr;
6984 event.wds_sta_interface.ifname = name;
6985 event.wds_sta_interface.istatus = INTERFACE_REMOVED;
6986 wpa_supplicant_event(bss->ctx, EVENT_WDS_STA_INTERFACE_STATUS,
6987 &event);
6988 return 0;
6989 }
6990 }
6991
6992
6993 static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
6994 {
6995 struct wpa_driver_nl80211_data *drv = eloop_ctx;
6996 struct sockaddr_ll lladdr;
6997 unsigned char buf[3000];
6998 int len;
6999 socklen_t fromlen = sizeof(lladdr);
7000
7001 len = recvfrom(sock, buf, sizeof(buf), 0,
7002 (struct sockaddr *)&lladdr, &fromlen);
7003 if (len < 0) {
7004 wpa_printf(MSG_ERROR, "nl80211: EAPOL recv failed: %s",
7005 strerror(errno));
7006 return;
7007 }
7008
7009 if (have_ifidx(drv, lladdr.sll_ifindex, IFIDX_ANY))
7010 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len);
7011 }
7012
7013
7014 static int i802_check_bridge(struct wpa_driver_nl80211_data *drv,
7015 struct i802_bss *bss,
7016 const char *brname, const char *ifname)
7017 {
7018 int br_ifindex;
7019 char in_br[IFNAMSIZ];
7020
7021 os_strlcpy(bss->brname, brname, IFNAMSIZ);
7022 br_ifindex = if_nametoindex(brname);
7023 if (br_ifindex == 0) {
7024 /*
7025 * Bridge was configured, but the bridge device does
7026 * not exist. Try to add it now.
7027 */
7028 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) {
7029 wpa_printf(MSG_ERROR, "nl80211: Failed to add the "
7030 "bridge interface %s: %s",
7031 brname, strerror(errno));
7032 return -1;
7033 }
7034 bss->added_bridge = 1;
7035 br_ifindex = if_nametoindex(brname);
7036 add_ifidx(drv, br_ifindex, drv->ifindex);
7037 }
7038 bss->br_ifindex = br_ifindex;
7039
7040 if (linux_br_get(in_br, ifname) == 0) {
7041 if (os_strcmp(in_br, brname) == 0) {
7042 bss->already_in_bridge = 1;
7043 return 0; /* already in the bridge */
7044 }
7045
7046 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from "
7047 "bridge %s", ifname, in_br);
7048 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) <
7049 0) {
7050 wpa_printf(MSG_ERROR, "nl80211: Failed to "
7051 "remove interface %s from bridge "
7052 "%s: %s",
7053 ifname, in_br, strerror(errno));
7054 return -1;
7055 }
7056 }
7057
7058 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s",
7059 ifname, brname);
7060 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) {
7061 wpa_printf(MSG_WARNING,
7062 "nl80211: Failed to add interface %s into bridge %s: %s",
7063 ifname, brname, strerror(errno));
7064 /* Try to continue without the interface being in a bridge. This
7065 * may be needed for some cases, e.g., with Open vSwitch, where
7066 * an external component will need to handle bridge
7067 * configuration. */
7068 return 0;
7069 }
7070 bss->added_if_into_bridge = 1;
7071
7072 return 0;
7073 }
7074
7075
7076 static void *i802_init(struct hostapd_data *hapd,
7077 struct wpa_init_params *params)
7078 {
7079 struct wpa_driver_nl80211_data *drv;
7080 struct i802_bss *bss;
7081 size_t i;
7082 char master_ifname[IFNAMSIZ];
7083 int ifindex, br_ifindex = 0;
7084 int br_added = 0;
7085
7086 bss = wpa_driver_nl80211_drv_init(hapd, params->ifname,
7087 params->global_priv, 1,
7088 params->bssid, params->driver_params);
7089 if (bss == NULL)
7090 return NULL;
7091
7092 drv = bss->drv;
7093
7094 if (linux_br_get(master_ifname, params->ifname) == 0) {
7095 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s",
7096 params->ifname, master_ifname);
7097 br_ifindex = if_nametoindex(master_ifname);
7098 os_strlcpy(bss->brname, master_ifname, IFNAMSIZ);
7099 } else if ((params->num_bridge == 0 || !params->bridge[0]) &&
7100 linux_master_get(master_ifname, params->ifname) == 0) {
7101 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in master %s",
7102 params->ifname, master_ifname);
7103 /* start listening for EAPOL on the master interface */
7104 add_ifidx(drv, if_nametoindex(master_ifname), drv->ifindex);
7105
7106 /* check if master itself is under bridge */
7107 if (linux_br_get(master_ifname, master_ifname) == 0) {
7108 wpa_printf(MSG_DEBUG, "nl80211: which is in bridge %s",
7109 master_ifname);
7110 br_ifindex = if_nametoindex(master_ifname);
7111 os_strlcpy(bss->brname, master_ifname, IFNAMSIZ);
7112 }
7113 } else {
7114 master_ifname[0] = '\0';
7115 }
7116
7117 bss->br_ifindex = br_ifindex;
7118
7119 for (i = 0; i < params->num_bridge; i++) {
7120 if (params->bridge[i]) {
7121 ifindex = if_nametoindex(params->bridge[i]);
7122 if (ifindex)
7123 add_ifidx(drv, ifindex, drv->ifindex);
7124 if (ifindex == br_ifindex)
7125 br_added = 1;
7126 }
7127 }
7128
7129 /* start listening for EAPOL on the default AP interface */
7130 add_ifidx(drv, drv->ifindex, IFIDX_ANY);
7131
7132 if (params->num_bridge && params->bridge[0]) {
7133 if (i802_check_bridge(drv, bss, params->bridge[0],
7134 params->ifname) < 0)
7135 goto failed;
7136 if (os_strcmp(params->bridge[0], master_ifname) != 0)
7137 br_added = 1;
7138 }
7139
7140 if (!br_added && br_ifindex &&
7141 (params->num_bridge == 0 || !params->bridge[0]))
7142 add_ifidx(drv, br_ifindex, drv->ifindex);
7143
7144 #ifdef CONFIG_LIBNL3_ROUTE
7145 if (bss->added_if_into_bridge || bss->already_in_bridge) {
7146 int err;
7147
7148 drv->rtnl_sk = nl_socket_alloc();
7149 if (drv->rtnl_sk == NULL) {
7150 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate nl_sock");
7151 goto failed;
7152 }
7153
7154 err = nl_connect(drv->rtnl_sk, NETLINK_ROUTE);
7155 if (err) {
7156 wpa_printf(MSG_ERROR, "nl80211: Failed to connect nl_sock to NETLINK_ROUTE: %s",
7157 nl_geterror(err));
7158 goto failed;
7159 }
7160 }
7161 #endif /* CONFIG_LIBNL3_ROUTE */
7162
7163 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE));
7164 if (drv->eapol_sock < 0) {
7165 wpa_printf(MSG_ERROR, "nl80211: socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE) failed: %s",
7166 strerror(errno));
7167 goto failed;
7168 }
7169
7170 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL))
7171 {
7172 wpa_printf(MSG_INFO, "nl80211: Could not register read socket for eapol");
7173 goto failed;
7174 }
7175
7176 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
7177 params->own_addr))
7178 goto failed;
7179 os_memcpy(drv->perm_addr, params->own_addr, ETH_ALEN);
7180
7181 memcpy(bss->addr, params->own_addr, ETH_ALEN);
7182
7183 return bss;
7184
7185 failed:
7186 wpa_driver_nl80211_deinit(bss);
7187 return NULL;
7188 }
7189
7190
7191 static void i802_deinit(void *priv)
7192 {
7193 struct i802_bss *bss = priv;
7194 wpa_driver_nl80211_deinit(bss);
7195 }
7196
7197
7198 static enum nl80211_iftype wpa_driver_nl80211_if_type(
7199 enum wpa_driver_if_type type)
7200 {
7201 switch (type) {
7202 case WPA_IF_STATION:
7203 return NL80211_IFTYPE_STATION;
7204 case WPA_IF_P2P_CLIENT:
7205 case WPA_IF_P2P_GROUP:
7206 return NL80211_IFTYPE_P2P_CLIENT;
7207 case WPA_IF_AP_VLAN:
7208 return NL80211_IFTYPE_AP_VLAN;
7209 case WPA_IF_AP_BSS:
7210 return NL80211_IFTYPE_AP;
7211 case WPA_IF_P2P_GO:
7212 return NL80211_IFTYPE_P2P_GO;
7213 case WPA_IF_P2P_DEVICE:
7214 return NL80211_IFTYPE_P2P_DEVICE;
7215 case WPA_IF_MESH:
7216 return NL80211_IFTYPE_MESH_POINT;
7217 default:
7218 return -1;
7219 }
7220 }
7221
7222
7223 static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr)
7224 {
7225 struct wpa_driver_nl80211_data *drv;
7226 dl_list_for_each(drv, &global->interfaces,
7227 struct wpa_driver_nl80211_data, list) {
7228 if (os_memcmp(addr, drv->first_bss->addr, ETH_ALEN) == 0)
7229 return 1;
7230 }
7231 return 0;
7232 }
7233
7234
7235 static int nl80211_vif_addr(struct wpa_driver_nl80211_data *drv, u8 *new_addr)
7236 {
7237 unsigned int idx;
7238
7239 if (!drv->global)
7240 return -1;
7241
7242 os_memcpy(new_addr, drv->first_bss->addr, ETH_ALEN);
7243 for (idx = 0; idx < 64; idx++) {
7244 new_addr[0] = drv->first_bss->addr[0] | 0x02;
7245 new_addr[0] ^= idx << 2;
7246 if (!nl80211_addr_in_use(drv->global, new_addr))
7247 break;
7248 }
7249 if (idx == 64)
7250 return -1;
7251
7252 wpa_printf(MSG_DEBUG, "nl80211: Assigned new virtual interface address "
7253 MACSTR, MAC2STR(new_addr));
7254
7255 return 0;
7256 }
7257
7258
7259 struct wdev_info {
7260 u64 wdev_id;
7261 int wdev_id_set;
7262 u8 macaddr[ETH_ALEN];
7263 };
7264
7265 static int nl80211_wdev_handler(struct nl_msg *msg, void *arg)
7266 {
7267 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
7268 struct nlattr *tb[NL80211_ATTR_MAX + 1];
7269 struct wdev_info *wi = arg;
7270
7271 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
7272 genlmsg_attrlen(gnlh, 0), NULL);
7273 if (tb[NL80211_ATTR_WDEV]) {
7274 wi->wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]);
7275 wi->wdev_id_set = 1;
7276 }
7277
7278 if (tb[NL80211_ATTR_MAC])
7279 os_memcpy(wi->macaddr, nla_data(tb[NL80211_ATTR_MAC]),
7280 ETH_ALEN);
7281
7282 return NL_SKIP;
7283 }
7284
7285
7286 static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type,
7287 const char *ifname, const u8 *addr,
7288 void *bss_ctx, void **drv_priv,
7289 char *force_ifname, u8 *if_addr,
7290 const char *bridge, int use_existing,
7291 int setup_ap)
7292 {
7293 enum nl80211_iftype nlmode;
7294 struct i802_bss *bss = priv;
7295 struct wpa_driver_nl80211_data *drv = bss->drv;
7296 int ifidx;
7297 int added = 1;
7298
7299 if (addr)
7300 os_memcpy(if_addr, addr, ETH_ALEN);
7301 nlmode = wpa_driver_nl80211_if_type(type);
7302 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) {
7303 struct wdev_info p2pdev_info;
7304
7305 os_memset(&p2pdev_info, 0, sizeof(p2pdev_info));
7306 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr,
7307 0, nl80211_wdev_handler,
7308 &p2pdev_info, use_existing);
7309 if (!p2pdev_info.wdev_id_set || ifidx != 0) {
7310 wpa_printf(MSG_ERROR, "nl80211: Failed to create a P2P Device interface %s",
7311 ifname);
7312 return -1;
7313 }
7314
7315 drv->global->if_add_wdevid = p2pdev_info.wdev_id;
7316 drv->global->if_add_wdevid_set = p2pdev_info.wdev_id_set;
7317 if (!is_zero_ether_addr(p2pdev_info.macaddr))
7318 os_memcpy(if_addr, p2pdev_info.macaddr, ETH_ALEN);
7319 wpa_printf(MSG_DEBUG, "nl80211: New P2P Device interface %s (0x%llx) created",
7320 ifname,
7321 (long long unsigned int) p2pdev_info.wdev_id);
7322 } else {
7323 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr,
7324 0, NULL, NULL, use_existing);
7325 if (use_existing && ifidx == -ENFILE) {
7326 added = 0;
7327 ifidx = if_nametoindex(ifname);
7328 } else if (ifidx < 0) {
7329 return -1;
7330 }
7331 }
7332
7333 if (!addr) {
7334 if (nlmode == NL80211_IFTYPE_P2P_DEVICE)
7335 os_memcpy(if_addr, bss->addr, ETH_ALEN);
7336 else if (linux_get_ifhwaddr(drv->global->ioctl_sock,
7337 ifname, if_addr) < 0) {
7338 if (added)
7339 nl80211_remove_iface(drv, ifidx);
7340 return -1;
7341 }
7342 }
7343
7344 if (!addr &&
7345 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP ||
7346 type == WPA_IF_P2P_GO || type == WPA_IF_MESH ||
7347 type == WPA_IF_STATION)) {
7348 /* Enforce unique address */
7349 u8 new_addr[ETH_ALEN];
7350
7351 if (linux_get_ifhwaddr(drv->global->ioctl_sock, ifname,
7352 new_addr) < 0) {
7353 if (added)
7354 nl80211_remove_iface(drv, ifidx);
7355 return -1;
7356 }
7357 if (nl80211_addr_in_use(drv->global, new_addr)) {
7358 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address "
7359 "for interface %s type %d", ifname, type);
7360 if (nl80211_vif_addr(drv, new_addr) < 0) {
7361 if (added)
7362 nl80211_remove_iface(drv, ifidx);
7363 return -1;
7364 }
7365 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname,
7366 new_addr) < 0) {
7367 if (added)
7368 nl80211_remove_iface(drv, ifidx);
7369 return -1;
7370 }
7371 }
7372 os_memcpy(if_addr, new_addr, ETH_ALEN);
7373 }
7374
7375 if (type == WPA_IF_AP_BSS && setup_ap) {
7376 struct i802_bss *new_bss = os_zalloc(sizeof(*new_bss));
7377 if (new_bss == NULL) {
7378 if (added)
7379 nl80211_remove_iface(drv, ifidx);
7380 return -1;
7381 }
7382
7383 if (bridge &&
7384 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) {
7385 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new "
7386 "interface %s to a bridge %s",
7387 ifname, bridge);
7388 if (added)
7389 nl80211_remove_iface(drv, ifidx);
7390 os_free(new_bss);
7391 return -1;
7392 }
7393
7394 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1))
7395 {
7396 if (added)
7397 nl80211_remove_iface(drv, ifidx);
7398 os_free(new_bss);
7399 return -1;
7400 }
7401 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ);
7402 os_memcpy(new_bss->addr, if_addr, ETH_ALEN);
7403 new_bss->ifindex = ifidx;
7404 new_bss->drv = drv;
7405 new_bss->next = drv->first_bss->next;
7406 new_bss->freq = drv->first_bss->freq;
7407 new_bss->ctx = bss_ctx;
7408 new_bss->added_if = added;
7409 drv->first_bss->next = new_bss;
7410 if (drv_priv)
7411 *drv_priv = new_bss;
7412 nl80211_init_bss(new_bss);
7413
7414 /* Subscribe management frames for this WPA_IF_AP_BSS */
7415 if (nl80211_setup_ap(new_bss))
7416 return -1;
7417 }
7418
7419 if (drv->global)
7420 drv->global->if_add_ifindex = ifidx;
7421
7422 /*
7423 * Some virtual interfaces need to process EAPOL packets and events on
7424 * the parent interface. This is used mainly with hostapd.
7425 */
7426 if (ifidx > 0 &&
7427 (drv->hostapd ||
7428 nlmode == NL80211_IFTYPE_AP_VLAN ||
7429 nlmode == NL80211_IFTYPE_WDS ||
7430 nlmode == NL80211_IFTYPE_MONITOR))
7431 add_ifidx(drv, ifidx, IFIDX_ANY);
7432
7433 return 0;
7434 }
7435
7436
7437 static int wpa_driver_nl80211_if_remove(struct i802_bss *bss,
7438 enum wpa_driver_if_type type,
7439 const char *ifname)
7440 {
7441 struct wpa_driver_nl80211_data *drv = bss->drv;
7442 int ifindex = if_nametoindex(ifname);
7443
7444 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d added_if=%d",
7445 __func__, type, ifname, ifindex, bss->added_if);
7446 if (ifindex > 0 && (bss->added_if || bss->ifindex != ifindex))
7447 nl80211_remove_iface(drv, ifindex);
7448 else if (ifindex > 0 && !bss->added_if) {
7449 struct wpa_driver_nl80211_data *drv2;
7450 dl_list_for_each(drv2, &drv->global->interfaces,
7451 struct wpa_driver_nl80211_data, list) {
7452 del_ifidx(drv2, ifindex, IFIDX_ANY);
7453 del_ifidx(drv2, IFIDX_ANY, ifindex);
7454 }
7455 }
7456
7457 if (type != WPA_IF_AP_BSS)
7458 return 0;
7459
7460 if (bss->added_if_into_bridge) {
7461 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname,
7462 bss->ifname) < 0)
7463 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
7464 "interface %s from bridge %s: %s",
7465 bss->ifname, bss->brname, strerror(errno));
7466 }
7467 if (bss->added_bridge) {
7468 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0)
7469 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
7470 "bridge %s: %s",
7471 bss->brname, strerror(errno));
7472 }
7473
7474 if (bss != drv->first_bss) {
7475 struct i802_bss *tbss;
7476
7477 wpa_printf(MSG_DEBUG, "nl80211: Not the first BSS - remove it");
7478 for (tbss = drv->first_bss; tbss; tbss = tbss->next) {
7479 if (tbss->next == bss) {
7480 tbss->next = bss->next;
7481 /* Unsubscribe management frames */
7482 nl80211_teardown_ap(bss);
7483 nl80211_destroy_bss(bss);
7484 if (!bss->added_if)
7485 i802_set_iface_flags(bss, 0);
7486 os_free(bss);
7487 bss = NULL;
7488 break;
7489 }
7490 }
7491 if (bss)
7492 wpa_printf(MSG_INFO, "nl80211: %s - could not find "
7493 "BSS %p in the list", __func__, bss);
7494 } else {
7495 wpa_printf(MSG_DEBUG, "nl80211: First BSS - reassign context");
7496 nl80211_teardown_ap(bss);
7497 if (!bss->added_if && !drv->first_bss->next)
7498 wpa_driver_nl80211_del_beacon(bss);
7499 nl80211_destroy_bss(bss);
7500 if (!bss->added_if)
7501 i802_set_iface_flags(bss, 0);
7502 if (drv->first_bss->next) {
7503 drv->first_bss = drv->first_bss->next;
7504 drv->ctx = drv->first_bss->ctx;
7505 os_free(bss);
7506 } else {
7507 wpa_printf(MSG_DEBUG, "nl80211: No second BSS to reassign context to");
7508 }
7509 }
7510
7511 return 0;
7512 }
7513
7514
7515 static int cookie_handler(struct nl_msg *msg, void *arg)
7516 {
7517 struct nlattr *tb[NL80211_ATTR_MAX + 1];
7518 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
7519 u64 *cookie = arg;
7520 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
7521 genlmsg_attrlen(gnlh, 0), NULL);
7522 if (tb[NL80211_ATTR_COOKIE])
7523 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
7524 return NL_SKIP;
7525 }
7526
7527
7528 static int nl80211_send_frame_cmd(struct i802_bss *bss,
7529 unsigned int freq, unsigned int wait,
7530 const u8 *buf, size_t buf_len,
7531 int save_cookie, int no_cck, int no_ack,
7532 int offchanok, const u16 *csa_offs,
7533 size_t csa_offs_len)
7534 {
7535 struct wpa_driver_nl80211_data *drv = bss->drv;
7536 struct nl_msg *msg;
7537 u64 cookie;
7538 int ret = -1;
7539
7540 wpa_printf(MSG_MSGDUMP, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d "
7541 "no_ack=%d offchanok=%d",
7542 freq, wait, no_cck, no_ack, offchanok);
7543 wpa_hexdump(MSG_MSGDUMP, "CMD_FRAME", buf, buf_len);
7544
7545 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_FRAME)) ||
7546 (freq && nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
7547 (wait && nla_put_u32(msg, NL80211_ATTR_DURATION, wait)) ||
7548 (offchanok && ((drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) ||
7549 drv->test_use_roc_tx) &&
7550 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK)) ||
7551 (no_cck && nla_put_flag(msg, NL80211_ATTR_TX_NO_CCK_RATE)) ||
7552 (no_ack && nla_put_flag(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK)) ||
7553 (csa_offs && nla_put(msg, NL80211_ATTR_CSA_C_OFFSETS_TX,
7554 csa_offs_len * sizeof(u16), csa_offs)) ||
7555 nla_put(msg, NL80211_ATTR_FRAME, buf_len, buf))
7556 goto fail;
7557
7558 cookie = 0;
7559 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
7560 msg = NULL;
7561 if (ret) {
7562 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d "
7563 "(%s) (freq=%u wait=%u)", ret, strerror(-ret),
7564 freq, wait);
7565 } else {
7566 wpa_printf(MSG_MSGDUMP, "nl80211: Frame TX command accepted%s; "
7567 "cookie 0x%llx", no_ack ? " (no ACK)" : "",
7568 (long long unsigned int) cookie);
7569
7570 if (save_cookie)
7571 drv->send_frame_cookie = no_ack ? (u64) -1 : cookie;
7572
7573 if (drv->num_send_frame_cookies == MAX_SEND_FRAME_COOKIES) {
7574 wpa_printf(MSG_DEBUG,
7575 "nl80211: Drop oldest pending send frame cookie 0x%llx",
7576 (long long unsigned int)
7577 drv->send_frame_cookies[0]);
7578 os_memmove(&drv->send_frame_cookies[0],
7579 &drv->send_frame_cookies[1],
7580 (MAX_SEND_FRAME_COOKIES - 1) *
7581 sizeof(u64));
7582 drv->num_send_frame_cookies--;
7583 }
7584 drv->send_frame_cookies[drv->num_send_frame_cookies] = cookie;
7585 drv->num_send_frame_cookies++;
7586 }
7587
7588 fail:
7589 nlmsg_free(msg);
7590 return ret;
7591 }
7592
7593
7594 static int wpa_driver_nl80211_send_action(struct i802_bss *bss,
7595 unsigned int freq,
7596 unsigned int wait_time,
7597 const u8 *dst, const u8 *src,
7598 const u8 *bssid,
7599 const u8 *data, size_t data_len,
7600 int no_cck)
7601 {
7602 struct wpa_driver_nl80211_data *drv = bss->drv;
7603 int ret = -1;
7604 u8 *buf;
7605 struct ieee80211_hdr *hdr;
7606 int offchanok = 1;
7607
7608 if (is_ap_interface(drv->nlmode) && (int) freq == bss->freq)
7609 offchanok = 0;
7610
7611 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, "
7612 "freq=%u MHz wait=%d ms no_cck=%d offchanok=%d)",
7613 drv->ifindex, freq, wait_time, no_cck, offchanok);
7614
7615 buf = os_zalloc(24 + data_len);
7616 if (buf == NULL)
7617 return ret;
7618 os_memcpy(buf + 24, data, data_len);
7619 hdr = (struct ieee80211_hdr *) buf;
7620 hdr->frame_control =
7621 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION);
7622 os_memcpy(hdr->addr1, dst, ETH_ALEN);
7623 os_memcpy(hdr->addr2, src, ETH_ALEN);
7624 os_memcpy(hdr->addr3, bssid, ETH_ALEN);
7625
7626 if (os_memcmp(bss->addr, src, ETH_ALEN) != 0) {
7627 wpa_printf(MSG_DEBUG, "nl80211: Use random TA " MACSTR,
7628 MAC2STR(src));
7629 os_memcpy(bss->rand_addr, src, ETH_ALEN);
7630 } else {
7631 os_memset(bss->rand_addr, 0, ETH_ALEN);
7632 }
7633
7634 if (is_ap_interface(drv->nlmode) &&
7635 (!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) ||
7636 (int) freq == bss->freq || drv->device_ap_sme ||
7637 !drv->use_monitor))
7638 ret = wpa_driver_nl80211_send_mlme(bss, buf, 24 + data_len,
7639 0, freq, no_cck, offchanok,
7640 wait_time, NULL, 0, 0);
7641 else
7642 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf,
7643 24 + data_len,
7644 1, no_cck, 0, offchanok, NULL, 0);
7645
7646 os_free(buf);
7647 return ret;
7648 }
7649
7650
7651 static void nl80211_frame_wait_cancel(struct i802_bss *bss, u64 cookie)
7652 {
7653 struct wpa_driver_nl80211_data *drv = bss->drv;
7654 struct nl_msg *msg;
7655 int ret;
7656
7657 wpa_printf(MSG_DEBUG, "nl80211: Cancel TX frame wait: cookie=0x%llx",
7658 (long long unsigned int) cookie);
7659 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_FRAME_WAIT_CANCEL)) ||
7660 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) {
7661 nlmsg_free(msg);
7662 return;
7663 }
7664
7665 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7666 if (ret)
7667 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d "
7668 "(%s)", ret, strerror(-ret));
7669 }
7670
7671
7672 static void wpa_driver_nl80211_send_action_cancel_wait(void *priv)
7673 {
7674 struct i802_bss *bss = priv;
7675 struct wpa_driver_nl80211_data *drv = bss->drv;
7676 unsigned int i;
7677 u64 cookie;
7678
7679 /* Cancel the last pending TX cookie */
7680 nl80211_frame_wait_cancel(bss, drv->send_frame_cookie);
7681
7682 /*
7683 * Cancel the other pending TX cookies, if any. This is needed since
7684 * the driver may keep a list of all pending offchannel TX operations
7685 * and free up the radio only once they have expired or cancelled.
7686 */
7687 for (i = drv->num_send_frame_cookies; i > 0; i--) {
7688 cookie = drv->send_frame_cookies[i - 1];
7689 if (cookie != drv->send_frame_cookie)
7690 nl80211_frame_wait_cancel(bss, cookie);
7691 }
7692 drv->num_send_frame_cookies = 0;
7693 }
7694
7695
7696 static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq,
7697 unsigned int duration)
7698 {
7699 struct i802_bss *bss = priv;
7700 struct wpa_driver_nl80211_data *drv = bss->drv;
7701 struct nl_msg *msg;
7702 int ret;
7703 u64 cookie;
7704
7705 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_REMAIN_ON_CHANNEL)) ||
7706 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
7707 nla_put_u32(msg, NL80211_ATTR_DURATION, duration)) {
7708 nlmsg_free(msg);
7709 return -1;
7710 }
7711
7712 cookie = 0;
7713 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
7714 if (ret == 0) {
7715 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie "
7716 "0x%llx for freq=%u MHz duration=%u",
7717 (long long unsigned int) cookie, freq, duration);
7718 drv->remain_on_chan_cookie = cookie;
7719 drv->pending_remain_on_chan = 1;
7720 return 0;
7721 }
7722 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel "
7723 "(freq=%d duration=%u): %d (%s)",
7724 freq, duration, ret, strerror(-ret));
7725 return -1;
7726 }
7727
7728
7729 static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv)
7730 {
7731 struct i802_bss *bss = priv;
7732 struct wpa_driver_nl80211_data *drv = bss->drv;
7733 struct nl_msg *msg;
7734 int ret;
7735
7736 if (!drv->pending_remain_on_chan) {
7737 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel "
7738 "to cancel");
7739 return -1;
7740 }
7741
7742 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie "
7743 "0x%llx",
7744 (long long unsigned int) drv->remain_on_chan_cookie);
7745
7746 msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL);
7747 if (!msg ||
7748 nla_put_u64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie)) {
7749 nlmsg_free(msg);
7750 return -1;
7751 }
7752
7753 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7754 if (ret == 0)
7755 return 0;
7756 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: "
7757 "%d (%s)", ret, strerror(-ret));
7758 return -1;
7759 }
7760
7761
7762 static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, int report)
7763 {
7764 struct wpa_driver_nl80211_data *drv = bss->drv;
7765
7766 if (!report) {
7767 if (bss->nl_preq && drv->device_ap_sme &&
7768 is_ap_interface(drv->nlmode) && !bss->in_deinit &&
7769 !bss->static_ap) {
7770 /*
7771 * Do not disable Probe Request reporting that was
7772 * enabled in nl80211_setup_ap().
7773 */
7774 wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of "
7775 "Probe Request reporting nl_preq=%p while "
7776 "in AP mode", bss->nl_preq);
7777 } else if (bss->nl_preq) {
7778 wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request "
7779 "reporting nl_preq=%p", bss->nl_preq);
7780 nl80211_destroy_eloop_handle(&bss->nl_preq, 0);
7781 }
7782 return 0;
7783 }
7784
7785 if (bss->nl_preq) {
7786 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting "
7787 "already on! nl_preq=%p", bss->nl_preq);
7788 return 0;
7789 }
7790
7791 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq");
7792 if (bss->nl_preq == NULL)
7793 return -1;
7794 wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request "
7795 "reporting nl_preq=%p", bss->nl_preq);
7796
7797 if (nl80211_register_frame(bss, bss->nl_preq,
7798 (WLAN_FC_TYPE_MGMT << 2) |
7799 (WLAN_FC_STYPE_PROBE_REQ << 4),
7800 NULL, 0) < 0)
7801 goto out_err;
7802
7803 nl80211_register_eloop_read(&bss->nl_preq,
7804 wpa_driver_nl80211_event_receive,
7805 bss->nl_cb, 0);
7806
7807 return 0;
7808
7809 out_err:
7810 nl_destroy_handles(&bss->nl_preq);
7811 return -1;
7812 }
7813
7814
7815 static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
7816 int ifindex, int disabled)
7817 {
7818 struct nl_msg *msg;
7819 struct nlattr *bands, *band;
7820 int ret;
7821
7822 wpa_printf(MSG_DEBUG,
7823 "nl80211: NL80211_CMD_SET_TX_BITRATE_MASK (ifindex=%d %s)",
7824 ifindex, disabled ? "NL80211_TXRATE_LEGACY=OFDM-only" :
7825 "no NL80211_TXRATE_LEGACY constraint");
7826
7827 msg = nl80211_ifindex_msg(drv, ifindex, 0,
7828 NL80211_CMD_SET_TX_BITRATE_MASK);
7829 if (!msg)
7830 return -1;
7831
7832 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES);
7833 if (!bands)
7834 goto fail;
7835
7836 /*
7837 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything
7838 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS
7839 * rates. All 5 GHz rates are left enabled.
7840 */
7841 band = nla_nest_start(msg, NL80211_BAND_2GHZ);
7842 if (!band ||
7843 (disabled && nla_put(msg, NL80211_TXRATE_LEGACY, 8,
7844 "\x0c\x12\x18\x24\x30\x48\x60\x6c")))
7845 goto fail;
7846 nla_nest_end(msg, band);
7847
7848 nla_nest_end(msg, bands);
7849
7850 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7851 if (ret) {
7852 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d "
7853 "(%s)", ret, strerror(-ret));
7854 } else
7855 drv->disabled_11b_rates = disabled;
7856
7857 return ret;
7858
7859 fail:
7860 nlmsg_free(msg);
7861 return -1;
7862 }
7863
7864
7865 static int wpa_driver_nl80211_deinit_ap(void *priv)
7866 {
7867 struct i802_bss *bss = priv;
7868 struct wpa_driver_nl80211_data *drv = bss->drv;
7869 if (!is_ap_interface(drv->nlmode))
7870 return -1;
7871 wpa_driver_nl80211_del_beacon(bss);
7872 bss->beacon_set = 0;
7873
7874 /*
7875 * If the P2P GO interface was dynamically added, then it is
7876 * possible that the interface change to station is not possible.
7877 */
7878 if (drv->nlmode == NL80211_IFTYPE_P2P_GO && bss->if_dynamic)
7879 return 0;
7880
7881 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION);
7882 }
7883
7884
7885 static int wpa_driver_nl80211_stop_ap(void *priv)
7886 {
7887 struct i802_bss *bss = priv;
7888 struct wpa_driver_nl80211_data *drv = bss->drv;
7889 if (!is_ap_interface(drv->nlmode))
7890 return -1;
7891 wpa_driver_nl80211_del_beacon(bss);
7892 bss->beacon_set = 0;
7893 return 0;
7894 }
7895
7896
7897 static int wpa_driver_nl80211_deinit_p2p_cli(void *priv)
7898 {
7899 struct i802_bss *bss = priv;
7900 struct wpa_driver_nl80211_data *drv = bss->drv;
7901 if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT)
7902 return -1;
7903
7904 /*
7905 * If the P2P Client interface was dynamically added, then it is
7906 * possible that the interface change to station is not possible.
7907 */
7908 if (bss->if_dynamic)
7909 return 0;
7910
7911 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION);
7912 }
7913
7914
7915 static void wpa_driver_nl80211_resume(void *priv)
7916 {
7917 struct i802_bss *bss = priv;
7918 enum nl80211_iftype nlmode = nl80211_get_ifmode(bss);
7919
7920 if (i802_set_iface_flags(bss, 1))
7921 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on resume event");
7922
7923 if (is_p2p_net_interface(nlmode))
7924 nl80211_disable_11b_rates(bss->drv, bss->drv->ifindex, 1);
7925 }
7926
7927
7928 static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis)
7929 {
7930 struct i802_bss *bss = priv;
7931 struct wpa_driver_nl80211_data *drv = bss->drv;
7932 struct nl_msg *msg;
7933 struct nlattr *cqm;
7934
7935 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d "
7936 "hysteresis=%d", threshold, hysteresis);
7937
7938 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_CQM)) ||
7939 !(cqm = nla_nest_start(msg, NL80211_ATTR_CQM)) ||
7940 nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THOLD, threshold) ||
7941 nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_HYST, hysteresis)) {
7942 nlmsg_free(msg);
7943 return -1;
7944 }
7945 nla_nest_end(msg, cqm);
7946
7947 return send_and_recv_msgs(drv, msg, NULL, NULL);
7948 }
7949
7950
7951 static int get_channel_width(struct nl_msg *msg, void *arg)
7952 {
7953 struct nlattr *tb[NL80211_ATTR_MAX + 1];
7954 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
7955 struct wpa_signal_info *sig_change = arg;
7956
7957 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
7958 genlmsg_attrlen(gnlh, 0), NULL);
7959
7960 sig_change->center_frq1 = -1;
7961 sig_change->center_frq2 = -1;
7962 sig_change->chanwidth = CHAN_WIDTH_UNKNOWN;
7963
7964 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) {
7965 sig_change->chanwidth = convert2width(
7966 nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH]));
7967 if (tb[NL80211_ATTR_CENTER_FREQ1])
7968 sig_change->center_frq1 =
7969 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]);
7970 if (tb[NL80211_ATTR_CENTER_FREQ2])
7971 sig_change->center_frq2 =
7972 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]);
7973 }
7974
7975 return NL_SKIP;
7976 }
7977
7978
7979 static int nl80211_get_channel_width(struct wpa_driver_nl80211_data *drv,
7980 struct wpa_signal_info *sig)
7981 {
7982 struct nl_msg *msg;
7983
7984 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_GET_INTERFACE);
7985 return send_and_recv_msgs(drv, msg, get_channel_width, sig);
7986 }
7987
7988
7989 static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si)
7990 {
7991 struct i802_bss *bss = priv;
7992 struct wpa_driver_nl80211_data *drv = bss->drv;
7993 int res;
7994
7995 os_memset(si, 0, sizeof(*si));
7996 res = nl80211_get_link_signal(drv, si);
7997 if (res) {
7998 if (drv->nlmode != NL80211_IFTYPE_ADHOC &&
7999 drv->nlmode != NL80211_IFTYPE_MESH_POINT)
8000 return res;
8001 si->current_signal = 0;
8002 }
8003
8004 res = nl80211_get_channel_width(drv, si);
8005 if (res != 0)
8006 return res;
8007
8008 return nl80211_get_link_noise(drv, si);
8009 }
8010
8011
8012 static int nl80211_set_param(void *priv, const char *param)
8013 {
8014 struct i802_bss *bss = priv;
8015 struct wpa_driver_nl80211_data *drv = bss->drv;
8016
8017 if (param == NULL)
8018 return 0;
8019 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param);
8020
8021 #ifdef CONFIG_P2P
8022 if (os_strstr(param, "use_p2p_group_interface=1")) {
8023 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
8024 "interface");
8025 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
8026 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
8027 }
8028 #endif /* CONFIG_P2P */
8029
8030 if (os_strstr(param, "use_monitor=1"))
8031 drv->use_monitor = 1;
8032
8033 if (os_strstr(param, "force_connect_cmd=1")) {
8034 drv->capa.flags &= ~WPA_DRIVER_FLAGS_SME;
8035 drv->force_connect_cmd = 1;
8036 }
8037
8038 if (os_strstr(param, "force_bss_selection=1"))
8039 drv->capa.flags |= WPA_DRIVER_FLAGS_BSS_SELECTION;
8040
8041 if (os_strstr(param, "no_offchannel_tx=1")) {
8042 drv->capa.flags &= ~WPA_DRIVER_FLAGS_OFFCHANNEL_TX;
8043 drv->test_use_roc_tx = 1;
8044 }
8045
8046 if (os_strstr(param, "control_port=0"))
8047 drv->capa.flags &= ~WPA_DRIVER_FLAGS_CONTROL_PORT;
8048
8049 return 0;
8050 }
8051
8052
8053 static void * nl80211_global_init(void *ctx)
8054 {
8055 struct nl80211_global *global;
8056 struct netlink_config *cfg;
8057
8058 global = os_zalloc(sizeof(*global));
8059 if (global == NULL)
8060 return NULL;
8061 global->ctx = ctx;
8062 global->ioctl_sock = -1;
8063 dl_list_init(&global->interfaces);
8064 global->if_add_ifindex = -1;
8065
8066 cfg = os_zalloc(sizeof(*cfg));
8067 if (cfg == NULL)
8068 goto err;
8069
8070 cfg->ctx = global;
8071 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink;
8072 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink;
8073 global->netlink = netlink_init(cfg);
8074 if (global->netlink == NULL) {
8075 os_free(cfg);
8076 goto err;
8077 }
8078
8079 if (wpa_driver_nl80211_init_nl_global(global) < 0)
8080 goto err;
8081
8082 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
8083 if (global->ioctl_sock < 0) {
8084 wpa_printf(MSG_ERROR, "nl80211: socket(PF_INET,SOCK_DGRAM) failed: %s",
8085 strerror(errno));
8086 goto err;
8087 }
8088
8089 return global;
8090
8091 err:
8092 nl80211_global_deinit(global);
8093 return NULL;
8094 }
8095
8096
8097 static void nl80211_global_deinit(void *priv)
8098 {
8099 struct nl80211_global *global = priv;
8100 if (global == NULL)
8101 return;
8102 if (!dl_list_empty(&global->interfaces)) {
8103 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at "
8104 "nl80211_global_deinit",
8105 dl_list_len(&global->interfaces));
8106 }
8107
8108 if (global->netlink)
8109 netlink_deinit(global->netlink);
8110
8111 nl_destroy_handles(&global->nl);
8112
8113 if (global->nl_event)
8114 nl80211_destroy_eloop_handle(&global->nl_event, 0);
8115
8116 nl_cb_put(global->nl_cb);
8117
8118 if (global->ioctl_sock >= 0)
8119 close(global->ioctl_sock);
8120
8121 os_free(global);
8122 }
8123
8124
8125 static const char * nl80211_get_radio_name(void *priv)
8126 {
8127 struct i802_bss *bss = priv;
8128 struct wpa_driver_nl80211_data *drv = bss->drv;
8129 return drv->phyname;
8130 }
8131
8132
8133 static int nl80211_pmkid(struct i802_bss *bss, int cmd,
8134 struct wpa_pmkid_params *params)
8135 {
8136 struct nl_msg *msg;
8137 const size_t PMK_MAX_LEN = 48; /* current cfg80211 limit */
8138
8139 if (!(msg = nl80211_bss_msg(bss, 0, cmd)) ||
8140 (params->pmkid &&
8141 nla_put(msg, NL80211_ATTR_PMKID, 16, params->pmkid)) ||
8142 (params->bssid &&
8143 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid)) ||
8144 (params->ssid_len &&
8145 nla_put(msg, NL80211_ATTR_SSID, params->ssid_len, params->ssid)) ||
8146 (params->fils_cache_id &&
8147 nla_put(msg, NL80211_ATTR_FILS_CACHE_ID, 2,
8148 params->fils_cache_id)) ||
8149 (cmd != NL80211_CMD_DEL_PMKSA &&
8150 params->pmk_len && params->pmk_len <= PMK_MAX_LEN &&
8151 nla_put(msg, NL80211_ATTR_PMK, params->pmk_len, params->pmk))) {
8152 nl80211_nlmsg_clear(msg);
8153 nlmsg_free(msg);
8154 return -ENOBUFS;
8155 }
8156
8157 return send_and_recv_msgs(bss->drv, msg, NULL, (void *) -1);
8158 }
8159
8160
8161 static int nl80211_add_pmkid(void *priv, struct wpa_pmkid_params *params)
8162 {
8163 struct i802_bss *bss = priv;
8164 int ret;
8165
8166 if (params->bssid)
8167 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR,
8168 MAC2STR(params->bssid));
8169 else if (params->fils_cache_id && params->ssid_len) {
8170 wpa_printf(MSG_DEBUG,
8171 "nl80211: Add PMKSA for cache id %02x%02x SSID %s",
8172 params->fils_cache_id[0], params->fils_cache_id[1],
8173 wpa_ssid_txt(params->ssid, params->ssid_len));
8174 }
8175
8176 ret = nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, params);
8177 if (ret < 0) {
8178 wpa_printf(MSG_DEBUG,
8179 "nl80211: NL80211_CMD_SET_PMKSA failed: %d (%s)",
8180 ret, strerror(-ret));
8181 }
8182
8183 return ret;
8184 }
8185
8186
8187 static int nl80211_remove_pmkid(void *priv, struct wpa_pmkid_params *params)
8188 {
8189 struct i802_bss *bss = priv;
8190 int ret;
8191
8192 if (params->bssid)
8193 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR,
8194 MAC2STR(params->bssid));
8195 else if (params->fils_cache_id && params->ssid_len) {
8196 wpa_printf(MSG_DEBUG,
8197 "nl80211: Delete PMKSA for cache id %02x%02x SSID %s",
8198 params->fils_cache_id[0], params->fils_cache_id[1],
8199 wpa_ssid_txt(params->ssid, params->ssid_len));
8200 }
8201
8202 ret = nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, params);
8203 if (ret < 0) {
8204 wpa_printf(MSG_DEBUG,
8205 "nl80211: NL80211_CMD_DEL_PMKSA failed: %d (%s)",
8206 ret, strerror(-ret));
8207 }
8208
8209 return ret;
8210 }
8211
8212
8213 static int nl80211_flush_pmkid(void *priv)
8214 {
8215 struct i802_bss *bss = priv;
8216 struct nl_msg *msg;
8217
8218 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs");
8219 msg = nl80211_bss_msg(bss, 0, NL80211_CMD_FLUSH_PMKSA);
8220 if (!msg)
8221 return -ENOBUFS;
8222 return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
8223 }
8224
8225
8226 static void clean_survey_results(struct survey_results *survey_results)
8227 {
8228 struct freq_survey *survey, *tmp;
8229
8230 if (dl_list_empty(&survey_results->survey_list))
8231 return;
8232
8233 dl_list_for_each_safe(survey, tmp, &survey_results->survey_list,
8234 struct freq_survey, list) {
8235 dl_list_del(&survey->list);
8236 os_free(survey);
8237 }
8238 }
8239
8240
8241 static void add_survey(struct nlattr **sinfo, u32 ifidx,
8242 struct dl_list *survey_list)
8243 {
8244 struct freq_survey *survey;
8245
8246 survey = os_zalloc(sizeof(struct freq_survey));
8247 if (!survey)
8248 return;
8249
8250 survey->ifidx = ifidx;
8251 survey->freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]);
8252 survey->filled = 0;
8253
8254 if (sinfo[NL80211_SURVEY_INFO_NOISE]) {
8255 survey->nf = (int8_t)
8256 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
8257 survey->filled |= SURVEY_HAS_NF;
8258 }
8259
8260 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]) {
8261 survey->channel_time =
8262 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]);
8263 survey->filled |= SURVEY_HAS_CHAN_TIME;
8264 }
8265
8266 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]) {
8267 survey->channel_time_busy =
8268 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]);
8269 survey->filled |= SURVEY_HAS_CHAN_TIME_BUSY;
8270 }
8271
8272 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]) {
8273 survey->channel_time_rx =
8274 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]);
8275 survey->filled |= SURVEY_HAS_CHAN_TIME_RX;
8276 }
8277
8278 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]) {
8279 survey->channel_time_tx =
8280 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]);
8281 survey->filled |= SURVEY_HAS_CHAN_TIME_TX;
8282 }
8283
8284 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)",
8285 survey->freq,
8286 survey->nf,
8287 (unsigned long int) survey->channel_time,
8288 (unsigned long int) survey->channel_time_busy,
8289 (unsigned long int) survey->channel_time_tx,
8290 (unsigned long int) survey->channel_time_rx,
8291 survey->filled);
8292
8293 dl_list_add_tail(survey_list, &survey->list);
8294 }
8295
8296
8297 static int check_survey_ok(struct nlattr **sinfo, u32 surveyed_freq,
8298 unsigned int freq_filter)
8299 {
8300 if (!freq_filter)
8301 return 1;
8302
8303 return freq_filter == surveyed_freq;
8304 }
8305
8306
8307 static int survey_handler(struct nl_msg *msg, void *arg)
8308 {
8309 struct nlattr *tb[NL80211_ATTR_MAX + 1];
8310 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
8311 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
8312 struct survey_results *survey_results;
8313 u32 surveyed_freq = 0;
8314 u32 ifidx;
8315
8316 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
8317 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
8318 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
8319 };
8320
8321 survey_results = (struct survey_results *) arg;
8322
8323 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
8324 genlmsg_attrlen(gnlh, 0), NULL);
8325
8326 if (!tb[NL80211_ATTR_IFINDEX])
8327 return NL_SKIP;
8328
8329 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
8330
8331 if (!tb[NL80211_ATTR_SURVEY_INFO])
8332 return NL_SKIP;
8333
8334 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
8335 tb[NL80211_ATTR_SURVEY_INFO],
8336 survey_policy))
8337 return NL_SKIP;
8338
8339 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) {
8340 wpa_printf(MSG_ERROR, "nl80211: Invalid survey data");
8341 return NL_SKIP;
8342 }
8343
8344 surveyed_freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]);
8345
8346 if (!check_survey_ok(sinfo, surveyed_freq,
8347 survey_results->freq_filter))
8348 return NL_SKIP;
8349
8350 if (survey_results->freq_filter &&
8351 survey_results->freq_filter != surveyed_freq) {
8352 wpa_printf(MSG_EXCESSIVE, "nl80211: Ignoring survey data for freq %d MHz",
8353 surveyed_freq);
8354 return NL_SKIP;
8355 }
8356
8357 add_survey(sinfo, ifidx, &survey_results->survey_list);
8358
8359 return NL_SKIP;
8360 }
8361
8362
8363 static int wpa_driver_nl80211_get_survey(void *priv, unsigned int freq)
8364 {
8365 struct i802_bss *bss = priv;
8366 struct wpa_driver_nl80211_data *drv = bss->drv;
8367 struct nl_msg *msg;
8368 int err;
8369 union wpa_event_data data;
8370 struct survey_results *survey_results;
8371
8372 os_memset(&data, 0, sizeof(data));
8373 survey_results = &data.survey_results;
8374
8375 dl_list_init(&survey_results->survey_list);
8376
8377 msg = nl80211_drv_msg(drv, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
8378 if (!msg)
8379 return -ENOBUFS;
8380
8381 if (freq)
8382 data.survey_results.freq_filter = freq;
8383
8384 do {
8385 wpa_printf(MSG_DEBUG, "nl80211: Fetch survey data");
8386 err = send_and_recv_msgs(drv, msg, survey_handler,
8387 survey_results);
8388 } while (err > 0);
8389
8390 if (err)
8391 wpa_printf(MSG_ERROR, "nl80211: Failed to process survey data");
8392 else
8393 wpa_supplicant_event(drv->ctx, EVENT_SURVEY, &data);
8394
8395 clean_survey_results(survey_results);
8396 return err;
8397 }
8398
8399
8400 static void nl80211_set_rekey_info(void *priv, const u8 *kek, size_t kek_len,
8401 const u8 *kck, size_t kck_len,
8402 const u8 *replay_ctr)
8403 {
8404 struct i802_bss *bss = priv;
8405 struct wpa_driver_nl80211_data *drv = bss->drv;
8406 struct nlattr *replay_nested;
8407 struct nl_msg *msg;
8408 int ret;
8409
8410 if (!drv->set_rekey_offload)
8411 return;
8412
8413 wpa_printf(MSG_DEBUG, "nl80211: Set rekey offload");
8414 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_REKEY_OFFLOAD)) ||
8415 !(replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA)) ||
8416 nla_put(msg, NL80211_REKEY_DATA_KEK, kek_len, kek) ||
8417 (kck_len && nla_put(msg, NL80211_REKEY_DATA_KCK, kck_len, kck)) ||
8418 nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN,
8419 replay_ctr)) {
8420 nl80211_nlmsg_clear(msg);
8421 nlmsg_free(msg);
8422 return;
8423 }
8424
8425 nla_nest_end(msg, replay_nested);
8426
8427 ret = send_and_recv_msgs(drv, msg, NULL, (void *) -1);
8428 if (ret == -EOPNOTSUPP) {
8429 wpa_printf(MSG_DEBUG,
8430 "nl80211: Driver does not support rekey offload");
8431 drv->set_rekey_offload = 0;
8432 }
8433 }
8434
8435
8436 static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr,
8437 const u8 *addr, int qos)
8438 {
8439 /* send data frame to poll STA and check whether
8440 * this frame is ACKed */
8441 struct {
8442 struct ieee80211_hdr hdr;
8443 u16 qos_ctl;
8444 } STRUCT_PACKED nulldata;
8445 size_t size;
8446
8447 /* Send data frame to poll STA and check whether this frame is ACKed */
8448
8449 os_memset(&nulldata, 0, sizeof(nulldata));
8450
8451 if (qos) {
8452 nulldata.hdr.frame_control =
8453 IEEE80211_FC(WLAN_FC_TYPE_DATA,
8454 WLAN_FC_STYPE_QOS_NULL);
8455 size = sizeof(nulldata);
8456 } else {
8457 nulldata.hdr.frame_control =
8458 IEEE80211_FC(WLAN_FC_TYPE_DATA,
8459 WLAN_FC_STYPE_NULLFUNC);
8460 size = sizeof(struct ieee80211_hdr);
8461 }
8462
8463 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS);
8464 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN);
8465 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
8466 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
8467
8468 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0, 0, 0,
8469 0, 0, NULL, 0, 0) < 0)
8470 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to "
8471 "send poll frame");
8472 }
8473
8474 static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr,
8475 int qos)
8476 {
8477 struct i802_bss *bss = priv;
8478 struct wpa_driver_nl80211_data *drv = bss->drv;
8479 struct nl_msg *msg;
8480 u64 cookie;
8481 int ret;
8482
8483 if (!drv->poll_command_supported) {
8484 nl80211_send_null_frame(bss, own_addr, addr, qos);
8485 return;
8486 }
8487
8488 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_PROBE_CLIENT)) ||
8489 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) {
8490 nlmsg_free(msg);
8491 return;
8492 }
8493
8494 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
8495 if (ret < 0) {
8496 wpa_printf(MSG_DEBUG, "nl80211: Client probe request for "
8497 MACSTR " failed: ret=%d (%s)",
8498 MAC2STR(addr), ret, strerror(-ret));
8499 } else {
8500 wpa_printf(MSG_DEBUG,
8501 "nl80211: Client probe request addr=" MACSTR
8502 " cookie=%llu", MAC2STR(addr),
8503 (long long unsigned int) cookie);
8504 }
8505 }
8506
8507
8508 static int nl80211_set_power_save(struct i802_bss *bss, int enabled)
8509 {
8510 struct nl_msg *msg;
8511 int ret;
8512
8513 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_POWER_SAVE)) ||
8514 nla_put_u32(msg, NL80211_ATTR_PS_STATE,
8515 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED)) {
8516 nlmsg_free(msg);
8517 return -ENOBUFS;
8518 }
8519
8520 ret = send_and_recv_msgs(bss->drv, msg, NULL, NULL);
8521 if (ret < 0) {
8522 wpa_printf(MSG_DEBUG,
8523 "nl80211: Setting PS state %s failed: %d (%s)",
8524 enabled ? "enabled" : "disabled",
8525 ret, strerror(-ret));
8526 }
8527 return ret;
8528 }
8529
8530
8531 static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps,
8532 int ctwindow)
8533 {
8534 struct i802_bss *bss = priv;
8535
8536 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d "
8537 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow);
8538
8539 if (opp_ps != -1 || ctwindow != -1) {
8540 #ifdef ANDROID_P2P
8541 wpa_driver_set_p2p_ps(priv, legacy_ps, opp_ps, ctwindow);
8542 #else /* ANDROID_P2P */
8543 return -1; /* Not yet supported */
8544 #endif /* ANDROID_P2P */
8545 }
8546
8547 if (legacy_ps == -1)
8548 return 0;
8549 if (legacy_ps != 0 && legacy_ps != 1)
8550 return -1; /* Not yet supported */
8551
8552 return nl80211_set_power_save(bss, legacy_ps);
8553 }
8554
8555
8556 static int nl80211_start_radar_detection(void *priv,
8557 struct hostapd_freq_params *freq)
8558 {
8559 struct i802_bss *bss = priv;
8560 struct wpa_driver_nl80211_data *drv = bss->drv;
8561 struct nl_msg *msg;
8562 int ret;
8563
8564 wpa_printf(MSG_DEBUG, "nl80211: Start radar detection (CAC) %d MHz (ht_enabled=%d, vht_enabled=%d, he_enabled=%d, bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)",
8565 freq->freq, freq->ht_enabled, freq->vht_enabled, freq->he_enabled,
8566 freq->bandwidth, freq->center_freq1, freq->center_freq2);
8567
8568 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_RADAR)) {
8569 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support radar "
8570 "detection");
8571 return -1;
8572 }
8573
8574 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_RADAR_DETECT)) ||
8575 nl80211_put_freq_params(msg, freq) < 0) {
8576 nlmsg_free(msg);
8577 return -1;
8578 }
8579
8580 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8581 if (ret == 0)
8582 return 0;
8583 wpa_printf(MSG_DEBUG, "nl80211: Failed to start radar detection: "
8584 "%d (%s)", ret, strerror(-ret));
8585 return -1;
8586 }
8587
8588 #ifdef CONFIG_TDLS
8589
8590 static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code,
8591 u8 dialog_token, u16 status_code,
8592 u32 peer_capab, int initiator, const u8 *buf,
8593 size_t len)
8594 {
8595 struct i802_bss *bss = priv;
8596 struct wpa_driver_nl80211_data *drv = bss->drv;
8597 struct nl_msg *msg;
8598
8599 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
8600 return -EOPNOTSUPP;
8601
8602 if (!dst)
8603 return -EINVAL;
8604
8605 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_TDLS_MGMT)) ||
8606 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
8607 nla_put_u8(msg, NL80211_ATTR_TDLS_ACTION, action_code) ||
8608 nla_put_u8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token) ||
8609 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status_code))
8610 goto fail;
8611 if (peer_capab) {
8612 /*
8613 * The internal enum tdls_peer_capability definition is
8614 * currently identical with the nl80211 enum
8615 * nl80211_tdls_peer_capability, so no conversion is needed
8616 * here.
8617 */
8618 if (nla_put_u32(msg, NL80211_ATTR_TDLS_PEER_CAPABILITY,
8619 peer_capab))
8620 goto fail;
8621 }
8622 if ((initiator &&
8623 nla_put_flag(msg, NL80211_ATTR_TDLS_INITIATOR)) ||
8624 nla_put(msg, NL80211_ATTR_IE, len, buf))
8625 goto fail;
8626
8627 return send_and_recv_msgs(drv, msg, NULL, NULL);
8628
8629 fail:
8630 nlmsg_free(msg);
8631 return -ENOBUFS;
8632 }
8633
8634
8635 static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer)
8636 {
8637 struct i802_bss *bss = priv;
8638 struct wpa_driver_nl80211_data *drv = bss->drv;
8639 struct nl_msg *msg;
8640 enum nl80211_tdls_operation nl80211_oper;
8641 int res;
8642
8643 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
8644 return -EOPNOTSUPP;
8645
8646 switch (oper) {
8647 case TDLS_DISCOVERY_REQ:
8648 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ;
8649 break;
8650 case TDLS_SETUP:
8651 nl80211_oper = NL80211_TDLS_SETUP;
8652 break;
8653 case TDLS_TEARDOWN:
8654 nl80211_oper = NL80211_TDLS_TEARDOWN;
8655 break;
8656 case TDLS_ENABLE_LINK:
8657 nl80211_oper = NL80211_TDLS_ENABLE_LINK;
8658 break;
8659 case TDLS_DISABLE_LINK:
8660 nl80211_oper = NL80211_TDLS_DISABLE_LINK;
8661 break;
8662 case TDLS_ENABLE:
8663 return 0;
8664 case TDLS_DISABLE:
8665 return 0;
8666 default:
8667 return -EINVAL;
8668 }
8669
8670 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_TDLS_OPER)) ||
8671 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper) ||
8672 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer)) {
8673 nlmsg_free(msg);
8674 return -ENOBUFS;
8675 }
8676
8677 res = send_and_recv_msgs(drv, msg, NULL, NULL);
8678 wpa_printf(MSG_DEBUG, "nl80211: TDLS_OPER: oper=%d mac=" MACSTR
8679 " --> res=%d (%s)", nl80211_oper, MAC2STR(peer), res,
8680 strerror(-res));
8681 return res;
8682 }
8683
8684
8685 static int
8686 nl80211_tdls_enable_channel_switch(void *priv, const u8 *addr, u8 oper_class,
8687 const struct hostapd_freq_params *params)
8688 {
8689 struct i802_bss *bss = priv;
8690 struct wpa_driver_nl80211_data *drv = bss->drv;
8691 struct nl_msg *msg;
8692 int ret = -ENOBUFS;
8693
8694 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT) ||
8695 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_CHANNEL_SWITCH))
8696 return -EOPNOTSUPP;
8697
8698 wpa_printf(MSG_DEBUG, "nl80211: Enable TDLS channel switch " MACSTR
8699 " oper_class=%u freq=%u",
8700 MAC2STR(addr), oper_class, params->freq);
8701 msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_TDLS_CHANNEL_SWITCH);
8702 if (!msg ||
8703 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
8704 nla_put_u8(msg, NL80211_ATTR_OPER_CLASS, oper_class) ||
8705 (ret = nl80211_put_freq_params(msg, params))) {
8706 nlmsg_free(msg);
8707 wpa_printf(MSG_DEBUG, "nl80211: Could not build TDLS chan switch");
8708 return ret;
8709 }
8710
8711 return send_and_recv_msgs(drv, msg, NULL, NULL);
8712 }
8713
8714
8715 static int
8716 nl80211_tdls_disable_channel_switch(void *priv, const u8 *addr)
8717 {
8718 struct i802_bss *bss = priv;
8719 struct wpa_driver_nl80211_data *drv = bss->drv;
8720 struct nl_msg *msg;
8721
8722 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT) ||
8723 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_CHANNEL_SWITCH))
8724 return -EOPNOTSUPP;
8725
8726 wpa_printf(MSG_DEBUG, "nl80211: Disable TDLS channel switch " MACSTR,
8727 MAC2STR(addr));
8728 msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH);
8729 if (!msg ||
8730 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) {
8731 nlmsg_free(msg);
8732 wpa_printf(MSG_DEBUG,
8733 "nl80211: Could not build TDLS cancel chan switch");
8734 return -ENOBUFS;
8735 }
8736
8737 return send_and_recv_msgs(drv, msg, NULL, NULL);
8738 }
8739
8740 #endif /* CONFIG TDLS */
8741
8742
8743 static int driver_nl80211_set_key(void *priv,
8744 struct wpa_driver_set_key_params *params)
8745 {
8746 struct i802_bss *bss = priv;
8747
8748 return wpa_driver_nl80211_set_key(bss, params);
8749 }
8750
8751
8752 static int driver_nl80211_scan2(void *priv,
8753 struct wpa_driver_scan_params *params)
8754 {
8755 struct i802_bss *bss = priv;
8756 #ifdef CONFIG_DRIVER_NL80211_QCA
8757 struct wpa_driver_nl80211_data *drv = bss->drv;
8758
8759 /*
8760 * Do a vendor specific scan if possible. If only_new_results is
8761 * set, do a normal scan since a kernel (cfg80211) BSS cache flush
8762 * cannot be achieved through a vendor scan. The below condition may
8763 * need to be modified if new scan flags are added in the future whose
8764 * functionality can only be achieved through a normal scan.
8765 */
8766 if (drv->scan_vendor_cmd_avail && !params->only_new_results)
8767 return wpa_driver_nl80211_vendor_scan(bss, params);
8768 #endif /* CONFIG_DRIVER_NL80211_QCA */
8769 return wpa_driver_nl80211_scan(bss, params);
8770 }
8771
8772
8773 static int driver_nl80211_deauthenticate(void *priv, const u8 *addr,
8774 u16 reason_code)
8775 {
8776 struct i802_bss *bss = priv;
8777 return wpa_driver_nl80211_deauthenticate(bss, addr, reason_code);
8778 }
8779
8780
8781 static int driver_nl80211_authenticate(void *priv,
8782 struct wpa_driver_auth_params *params)
8783 {
8784 struct i802_bss *bss = priv;
8785 return wpa_driver_nl80211_authenticate(bss, params);
8786 }
8787
8788
8789 static void driver_nl80211_deinit(void *priv)
8790 {
8791 struct i802_bss *bss = priv;
8792 wpa_driver_nl80211_deinit(bss);
8793 }
8794
8795
8796 static int driver_nl80211_if_remove(void *priv, enum wpa_driver_if_type type,
8797 const char *ifname)
8798 {
8799 struct i802_bss *bss = priv;
8800 return wpa_driver_nl80211_if_remove(bss, type, ifname);
8801 }
8802
8803
8804 static int driver_nl80211_send_mlme(void *priv, const u8 *data,
8805 size_t data_len, int noack,
8806 unsigned int freq,
8807 const u16 *csa_offs, size_t csa_offs_len,
8808 int no_encrypt)
8809 {
8810 struct i802_bss *bss = priv;
8811 return wpa_driver_nl80211_send_mlme(bss, data, data_len, noack,
8812 freq, 0, 0, 0, csa_offs,
8813 csa_offs_len, no_encrypt);
8814 }
8815
8816
8817 static int driver_nl80211_sta_remove(void *priv, const u8 *addr)
8818 {
8819 struct i802_bss *bss = priv;
8820 return wpa_driver_nl80211_sta_remove(bss, addr, -1, 0);
8821 }
8822
8823
8824 static int driver_nl80211_set_sta_vlan(void *priv, const u8 *addr,
8825 const char *ifname, int vlan_id)
8826 {
8827 struct i802_bss *bss = priv;
8828 return i802_set_sta_vlan(bss, addr, ifname, vlan_id);
8829 }
8830
8831
8832 static int driver_nl80211_read_sta_data(void *priv,
8833 struct hostap_sta_driver_data *data,
8834 const u8 *addr)
8835 {
8836 struct i802_bss *bss = priv;
8837
8838 os_memset(data, 0, sizeof(*data));
8839 return i802_read_sta_data(bss, data, addr);
8840 }
8841
8842
8843 static int driver_nl80211_send_action(void *priv, unsigned int freq,
8844 unsigned int wait_time,
8845 const u8 *dst, const u8 *src,
8846 const u8 *bssid,
8847 const u8 *data, size_t data_len,
8848 int no_cck)
8849 {
8850 struct i802_bss *bss = priv;
8851 return wpa_driver_nl80211_send_action(bss, freq, wait_time, dst, src,
8852 bssid, data, data_len, no_cck);
8853 }
8854
8855
8856 static int driver_nl80211_probe_req_report(void *priv, int report)
8857 {
8858 struct i802_bss *bss = priv;
8859 return wpa_driver_nl80211_probe_req_report(bss, report);
8860 }
8861
8862
8863 static int wpa_driver_nl80211_update_ft_ies(void *priv, const u8 *md,
8864 const u8 *ies, size_t ies_len)
8865 {
8866 int ret;
8867 struct nl_msg *msg;
8868 struct i802_bss *bss = priv;
8869 struct wpa_driver_nl80211_data *drv = bss->drv;
8870 u16 mdid = WPA_GET_LE16(md);
8871
8872 wpa_printf(MSG_DEBUG, "nl80211: Updating FT IEs");
8873 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_UPDATE_FT_IES)) ||
8874 nla_put(msg, NL80211_ATTR_IE, ies_len, ies) ||
8875 nla_put_u16(msg, NL80211_ATTR_MDID, mdid)) {
8876 nlmsg_free(msg);
8877 return -ENOBUFS;
8878 }
8879
8880 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8881 if (ret) {
8882 wpa_printf(MSG_DEBUG, "nl80211: update_ft_ies failed "
8883 "err=%d (%s)", ret, strerror(-ret));
8884 }
8885
8886 return ret;
8887 }
8888
8889
8890 static int nl80211_update_dh_ie(void *priv, const u8 *peer_mac,
8891 u16 reason_code, const u8 *ie, size_t ie_len)
8892 {
8893 int ret;
8894 struct nl_msg *msg;
8895 struct i802_bss *bss = priv;
8896 struct wpa_driver_nl80211_data *drv = bss->drv;
8897
8898 wpa_printf(MSG_DEBUG, "nl80211: Updating DH IE peer: " MACSTR
8899 " reason %u", MAC2STR(peer_mac), reason_code);
8900 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_UPDATE_OWE_INFO)) ||
8901 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer_mac) ||
8902 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, reason_code) ||
8903 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie))) {
8904 nlmsg_free(msg);
8905 return -ENOBUFS;
8906 }
8907
8908 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8909 if (ret) {
8910 wpa_printf(MSG_DEBUG,
8911 "nl80211: update_dh_ie failed err=%d (%s)",
8912 ret, strerror(-ret));
8913 }
8914
8915 return ret;
8916 }
8917
8918
8919 static const u8 * wpa_driver_nl80211_get_macaddr(void *priv)
8920 {
8921 struct i802_bss *bss = priv;
8922 struct wpa_driver_nl80211_data *drv = bss->drv;
8923
8924 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE)
8925 return NULL;
8926
8927 return bss->addr;
8928 }
8929
8930
8931 static const char * scan_state_str(enum scan_states scan_state)
8932 {
8933 switch (scan_state) {
8934 case NO_SCAN:
8935 return "NO_SCAN";
8936 case SCAN_REQUESTED:
8937 return "SCAN_REQUESTED";
8938 case SCAN_STARTED:
8939 return "SCAN_STARTED";
8940 case SCAN_COMPLETED:
8941 return "SCAN_COMPLETED";
8942 case SCAN_ABORTED:
8943 return "SCAN_ABORTED";
8944 case SCHED_SCAN_STARTED:
8945 return "SCHED_SCAN_STARTED";
8946 case SCHED_SCAN_STOPPED:
8947 return "SCHED_SCAN_STOPPED";
8948 case SCHED_SCAN_RESULTS:
8949 return "SCHED_SCAN_RESULTS";
8950 }
8951
8952 return "??";
8953 }
8954
8955
8956 static int wpa_driver_nl80211_status(void *priv, char *buf, size_t buflen)
8957 {
8958 struct i802_bss *bss = priv;
8959 struct wpa_driver_nl80211_data *drv = bss->drv;
8960 int res;
8961 char *pos, *end;
8962 struct nl_msg *msg;
8963 char alpha2[3] = { 0, 0, 0 };
8964
8965 pos = buf;
8966 end = buf + buflen;
8967
8968 res = os_snprintf(pos, end - pos,
8969 "ifindex=%d\n"
8970 "ifname=%s\n"
8971 "brname=%s\n"
8972 "addr=" MACSTR "\n"
8973 "freq=%d\n"
8974 "%s%s%s%s%s%s",
8975 bss->ifindex,
8976 bss->ifname,
8977 bss->brname,
8978 MAC2STR(bss->addr),
8979 bss->freq,
8980 bss->beacon_set ? "beacon_set=1\n" : "",
8981 bss->added_if_into_bridge ?
8982 "added_if_into_bridge=1\n" : "",
8983 bss->already_in_bridge ? "already_in_bridge=1\n" : "",
8984 bss->added_bridge ? "added_bridge=1\n" : "",
8985 bss->in_deinit ? "in_deinit=1\n" : "",
8986 bss->if_dynamic ? "if_dynamic=1\n" : "");
8987 if (os_snprintf_error(end - pos, res))
8988 return pos - buf;
8989 pos += res;
8990
8991 if (bss->wdev_id_set) {
8992 res = os_snprintf(pos, end - pos, "wdev_id=%llu\n",
8993 (unsigned long long) bss->wdev_id);
8994 if (os_snprintf_error(end - pos, res))
8995 return pos - buf;
8996 pos += res;
8997 }
8998
8999 res = os_snprintf(pos, end - pos,
9000 "phyname=%s\n"
9001 "perm_addr=" MACSTR "\n"
9002 "drv_ifindex=%d\n"
9003 "operstate=%d\n"
9004 "scan_state=%s\n"
9005 "auth_bssid=" MACSTR "\n"
9006 "auth_attempt_bssid=" MACSTR "\n"
9007 "bssid=" MACSTR "\n"
9008 "prev_bssid=" MACSTR "\n"
9009 "associated=%d\n"
9010 "assoc_freq=%u\n"
9011 "monitor_sock=%d\n"
9012 "monitor_ifidx=%d\n"
9013 "monitor_refcount=%d\n"
9014 "last_mgmt_freq=%u\n"
9015 "eapol_tx_sock=%d\n"
9016 "%s%s%s%s%s%s%s%s%s%s%s%s%s",
9017 drv->phyname,
9018 MAC2STR(drv->perm_addr),
9019 drv->ifindex,
9020 drv->operstate,
9021 scan_state_str(drv->scan_state),
9022 MAC2STR(drv->auth_bssid),
9023 MAC2STR(drv->auth_attempt_bssid),
9024 MAC2STR(drv->bssid),
9025 MAC2STR(drv->prev_bssid),
9026 drv->associated,
9027 drv->assoc_freq,
9028 drv->monitor_sock,
9029 drv->monitor_ifidx,
9030 drv->monitor_refcount,
9031 drv->last_mgmt_freq,
9032 drv->eapol_tx_sock,
9033 drv->ignore_if_down_event ?
9034 "ignore_if_down_event=1\n" : "",
9035 drv->scan_complete_events ?
9036 "scan_complete_events=1\n" : "",
9037 drv->disabled_11b_rates ?
9038 "disabled_11b_rates=1\n" : "",
9039 drv->pending_remain_on_chan ?
9040 "pending_remain_on_chan=1\n" : "",
9041 drv->in_interface_list ? "in_interface_list=1\n" : "",
9042 drv->device_ap_sme ? "device_ap_sme=1\n" : "",
9043 drv->poll_command_supported ?
9044 "poll_command_supported=1\n" : "",
9045 drv->data_tx_status ? "data_tx_status=1\n" : "",
9046 drv->scan_for_auth ? "scan_for_auth=1\n" : "",
9047 drv->retry_auth ? "retry_auth=1\n" : "",
9048 drv->use_monitor ? "use_monitor=1\n" : "",
9049 drv->ignore_next_local_disconnect ?
9050 "ignore_next_local_disconnect=1\n" : "",
9051 drv->ignore_next_local_deauth ?
9052 "ignore_next_local_deauth=1\n" : "");
9053 if (os_snprintf_error(end - pos, res))
9054 return pos - buf;
9055 pos += res;
9056
9057 if (drv->has_capability) {
9058 res = os_snprintf(pos, end - pos,
9059 "capa.key_mgmt=0x%x\n"
9060 "capa.enc=0x%x\n"
9061 "capa.auth=0x%x\n"
9062 "capa.flags=0x%llx\n"
9063 "capa.rrm_flags=0x%x\n"
9064 "capa.max_scan_ssids=%d\n"
9065 "capa.max_sched_scan_ssids=%d\n"
9066 "capa.sched_scan_supported=%d\n"
9067 "capa.max_match_sets=%d\n"
9068 "capa.max_remain_on_chan=%u\n"
9069 "capa.max_stations=%u\n"
9070 "capa.probe_resp_offloads=0x%x\n"
9071 "capa.max_acl_mac_addrs=%u\n"
9072 "capa.num_multichan_concurrent=%u\n"
9073 "capa.mac_addr_rand_sched_scan_supported=%d\n"
9074 "capa.mac_addr_rand_scan_supported=%d\n"
9075 "capa.conc_capab=%u\n"
9076 "capa.max_conc_chan_2_4=%u\n"
9077 "capa.max_conc_chan_5_0=%u\n"
9078 "capa.max_sched_scan_plans=%u\n"
9079 "capa.max_sched_scan_plan_interval=%u\n"
9080 "capa.max_sched_scan_plan_iterations=%u\n",
9081 drv->capa.key_mgmt,
9082 drv->capa.enc,
9083 drv->capa.auth,
9084 (unsigned long long) drv->capa.flags,
9085 drv->capa.rrm_flags,
9086 drv->capa.max_scan_ssids,
9087 drv->capa.max_sched_scan_ssids,
9088 drv->capa.sched_scan_supported,
9089 drv->capa.max_match_sets,
9090 drv->capa.max_remain_on_chan,
9091 drv->capa.max_stations,
9092 drv->capa.probe_resp_offloads,
9093 drv->capa.max_acl_mac_addrs,
9094 drv->capa.num_multichan_concurrent,
9095 drv->capa.mac_addr_rand_sched_scan_supported,
9096 drv->capa.mac_addr_rand_scan_supported,
9097 drv->capa.conc_capab,
9098 drv->capa.max_conc_chan_2_4,
9099 drv->capa.max_conc_chan_5_0,
9100 drv->capa.max_sched_scan_plans,
9101 drv->capa.max_sched_scan_plan_interval,
9102 drv->capa.max_sched_scan_plan_iterations);
9103 if (os_snprintf_error(end - pos, res))
9104 return pos - buf;
9105 pos += res;
9106 }
9107
9108 msg = nlmsg_alloc();
9109 if (msg &&
9110 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG) &&
9111 nla_put_u32(msg, NL80211_ATTR_WIPHY, drv->wiphy_idx) == 0) {
9112 if (send_and_recv_msgs(drv, msg, nl80211_get_country,
9113 alpha2) == 0 &&
9114 alpha2[0]) {
9115 res = os_snprintf(pos, end - pos, "country=%s\n",
9116 alpha2);
9117 if (os_snprintf_error(end - pos, res))
9118 return pos - buf;
9119 pos += res;
9120 }
9121 } else {
9122 nlmsg_free(msg);
9123 }
9124
9125 return pos - buf;
9126 }
9127
9128
9129 static int set_beacon_data(struct nl_msg *msg, struct beacon_data *settings)
9130 {
9131 if ((settings->head &&
9132 nla_put(msg, NL80211_ATTR_BEACON_HEAD,
9133 settings->head_len, settings->head)) ||
9134 (settings->tail &&
9135 nla_put(msg, NL80211_ATTR_BEACON_TAIL,
9136 settings->tail_len, settings->tail)) ||
9137 (settings->beacon_ies &&
9138 nla_put(msg, NL80211_ATTR_IE,
9139 settings->beacon_ies_len, settings->beacon_ies)) ||
9140 (settings->proberesp_ies &&
9141 nla_put(msg, NL80211_ATTR_IE_PROBE_RESP,
9142 settings->proberesp_ies_len, settings->proberesp_ies)) ||
9143 (settings->assocresp_ies &&
9144 nla_put(msg, NL80211_ATTR_IE_ASSOC_RESP,
9145 settings->assocresp_ies_len, settings->assocresp_ies)) ||
9146 (settings->probe_resp &&
9147 nla_put(msg, NL80211_ATTR_PROBE_RESP,
9148 settings->probe_resp_len, settings->probe_resp)))
9149 return -ENOBUFS;
9150
9151 return 0;
9152 }
9153
9154
9155 static int nl80211_switch_channel(void *priv, struct csa_settings *settings)
9156 {
9157 struct nl_msg *msg;
9158 struct i802_bss *bss = priv;
9159 struct wpa_driver_nl80211_data *drv = bss->drv;
9160 struct nlattr *beacon_csa;
9161 int ret = -ENOBUFS;
9162 int csa_off_len = 0;
9163 int i;
9164
9165 wpa_printf(MSG_DEBUG, "nl80211: Channel switch request (cs_count=%u block_tx=%u freq=%d width=%d cf1=%d cf2=%d)",
9166 settings->cs_count, settings->block_tx,
9167 settings->freq_params.freq, settings->freq_params.bandwidth,
9168 settings->freq_params.center_freq1,
9169 settings->freq_params.center_freq2);
9170
9171 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_AP_CSA)) {
9172 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support channel switch command");
9173 return -EOPNOTSUPP;
9174 }
9175
9176 if (drv->nlmode != NL80211_IFTYPE_AP &&
9177 drv->nlmode != NL80211_IFTYPE_P2P_GO &&
9178 drv->nlmode != NL80211_IFTYPE_MESH_POINT)
9179 return -EOPNOTSUPP;
9180
9181 /*
9182 * Remove empty counters, assuming Probe Response and Beacon frame
9183 * counters match. This implementation assumes that there are only two
9184 * counters.
9185 */
9186 if (settings->counter_offset_beacon[0] &&
9187 !settings->counter_offset_beacon[1]) {
9188 csa_off_len = 1;
9189 } else if (settings->counter_offset_beacon[1] &&
9190 !settings->counter_offset_beacon[0]) {
9191 csa_off_len = 1;
9192 settings->counter_offset_beacon[0] =
9193 settings->counter_offset_beacon[1];
9194 settings->counter_offset_presp[0] =
9195 settings->counter_offset_presp[1];
9196 } else if (settings->counter_offset_beacon[1] &&
9197 settings->counter_offset_beacon[0]) {
9198 csa_off_len = 2;
9199 } else {
9200 wpa_printf(MSG_ERROR, "nl80211: No CSA counters provided");
9201 return -EINVAL;
9202 }
9203
9204 /* Check CSA counters validity */
9205 if (drv->capa.max_csa_counters &&
9206 csa_off_len > drv->capa.max_csa_counters) {
9207 wpa_printf(MSG_ERROR,
9208 "nl80211: Too many CSA counters provided");
9209 return -EINVAL;
9210 }
9211
9212 if (!settings->beacon_csa.tail)
9213 return -EINVAL;
9214
9215 for (i = 0; i < csa_off_len; i++) {
9216 u16 csa_c_off_bcn = settings->counter_offset_beacon[i];
9217 u16 csa_c_off_presp = settings->counter_offset_presp[i];
9218
9219 if ((settings->beacon_csa.tail_len <= csa_c_off_bcn) ||
9220 (settings->beacon_csa.tail[csa_c_off_bcn] !=
9221 settings->cs_count))
9222 return -EINVAL;
9223
9224 if (settings->beacon_csa.probe_resp &&
9225 ((settings->beacon_csa.probe_resp_len <=
9226 csa_c_off_presp) ||
9227 (settings->beacon_csa.probe_resp[csa_c_off_presp] !=
9228 settings->cs_count)))
9229 return -EINVAL;
9230 }
9231
9232 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_CHANNEL_SWITCH)) ||
9233 nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT,
9234 settings->cs_count) ||
9235 (ret = nl80211_put_freq_params(msg, &settings->freq_params)) ||
9236 (settings->block_tx &&
9237 nla_put_flag(msg, NL80211_ATTR_CH_SWITCH_BLOCK_TX)))
9238 goto error;
9239
9240 /* beacon_after params */
9241 ret = set_beacon_data(msg, &settings->beacon_after);
9242 if (ret)
9243 goto error;
9244
9245 /* beacon_csa params */
9246 beacon_csa = nla_nest_start(msg, NL80211_ATTR_CSA_IES);
9247 if (!beacon_csa)
9248 goto fail;
9249
9250 ret = set_beacon_data(msg, &settings->beacon_csa);
9251 if (ret)
9252 goto error;
9253
9254 if (nla_put(msg, NL80211_ATTR_CSA_C_OFF_BEACON,
9255 csa_off_len * sizeof(u16),
9256 settings->counter_offset_beacon) ||
9257 (settings->beacon_csa.probe_resp &&
9258 nla_put(msg, NL80211_ATTR_CSA_C_OFF_PRESP,
9259 csa_off_len * sizeof(u16),
9260 settings->counter_offset_presp)))
9261 goto fail;
9262
9263 nla_nest_end(msg, beacon_csa);
9264 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
9265 if (ret) {
9266 wpa_printf(MSG_DEBUG, "nl80211: switch_channel failed err=%d (%s)",
9267 ret, strerror(-ret));
9268 }
9269 return ret;
9270
9271 fail:
9272 ret = -ENOBUFS;
9273 error:
9274 nlmsg_free(msg);
9275 wpa_printf(MSG_DEBUG, "nl80211: Could not build channel switch request");
9276 return ret;
9277 }
9278
9279
9280 static int nl80211_add_ts(void *priv, u8 tsid, const u8 *addr,
9281 u8 user_priority, u16 admitted_time)
9282 {
9283 struct i802_bss *bss = priv;
9284 struct wpa_driver_nl80211_data *drv = bss->drv;
9285 struct nl_msg *msg;
9286 int ret;
9287
9288 wpa_printf(MSG_DEBUG,
9289 "nl80211: add_ts request: tsid=%u admitted_time=%u up=%d",
9290 tsid, admitted_time, user_priority);
9291
9292 if (!is_sta_interface(drv->nlmode))
9293 return -ENOTSUP;
9294
9295 msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_ADD_TX_TS);
9296 if (!msg ||
9297 nla_put_u8(msg, NL80211_ATTR_TSID, tsid) ||
9298 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9299 nla_put_u8(msg, NL80211_ATTR_USER_PRIO, user_priority) ||
9300 nla_put_u16(msg, NL80211_ATTR_ADMITTED_TIME, admitted_time)) {
9301 nlmsg_free(msg);
9302 return -ENOBUFS;
9303 }
9304
9305 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
9306 if (ret)
9307 wpa_printf(MSG_DEBUG, "nl80211: add_ts failed err=%d (%s)",
9308 ret, strerror(-ret));
9309 return ret;
9310 }
9311
9312
9313 static int nl80211_del_ts(void *priv, u8 tsid, const u8 *addr)
9314 {
9315 struct i802_bss *bss = priv;
9316 struct wpa_driver_nl80211_data *drv = bss->drv;
9317 struct nl_msg *msg;
9318 int ret;
9319
9320 wpa_printf(MSG_DEBUG, "nl80211: del_ts request: tsid=%u", tsid);
9321
9322 if (!is_sta_interface(drv->nlmode))
9323 return -ENOTSUP;
9324
9325 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_DEL_TX_TS)) ||
9326 nla_put_u8(msg, NL80211_ATTR_TSID, tsid) ||
9327 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) {
9328 nlmsg_free(msg);
9329 return -ENOBUFS;
9330 }
9331
9332 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
9333 if (ret)
9334 wpa_printf(MSG_DEBUG, "nl80211: del_ts failed err=%d (%s)",
9335 ret, strerror(-ret));
9336 return ret;
9337 }
9338
9339
9340 #ifdef CONFIG_TESTING_OPTIONS
9341 static int cmd_reply_handler(struct nl_msg *msg, void *arg)
9342 {
9343 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
9344 struct wpabuf *buf = arg;
9345
9346 if (!buf)
9347 return NL_SKIP;
9348
9349 if ((size_t) genlmsg_attrlen(gnlh, 0) > wpabuf_tailroom(buf)) {
9350 wpa_printf(MSG_INFO, "nl80211: insufficient buffer space for reply");
9351 return NL_SKIP;
9352 }
9353
9354 wpabuf_put_data(buf, genlmsg_attrdata(gnlh, 0),
9355 genlmsg_attrlen(gnlh, 0));
9356
9357 return NL_SKIP;
9358 }
9359 #endif /* CONFIG_TESTING_OPTIONS */
9360
9361
9362 static int vendor_reply_handler(struct nl_msg *msg, void *arg)
9363 {
9364 struct nlattr *tb[NL80211_ATTR_MAX + 1];
9365 struct nlattr *nl_vendor_reply, *nl;
9366 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
9367 struct wpabuf *buf = arg;
9368 int rem;
9369
9370 if (!buf)
9371 return NL_SKIP;
9372
9373 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
9374 genlmsg_attrlen(gnlh, 0), NULL);
9375 nl_vendor_reply = tb[NL80211_ATTR_VENDOR_DATA];
9376
9377 if (!nl_vendor_reply)
9378 return NL_SKIP;
9379
9380 if ((size_t) nla_len(nl_vendor_reply) > wpabuf_tailroom(buf)) {
9381 wpa_printf(MSG_INFO, "nl80211: Vendor command: insufficient buffer space for reply");
9382 return NL_SKIP;
9383 }
9384
9385 nla_for_each_nested(nl, nl_vendor_reply, rem) {
9386 wpabuf_put_data(buf, nla_data(nl), nla_len(nl));
9387 }
9388
9389 return NL_SKIP;
9390 }
9391
9392
9393 static int nl80211_vendor_cmd(void *priv, unsigned int vendor_id,
9394 unsigned int subcmd, const u8 *data,
9395 size_t data_len, struct wpabuf *buf)
9396 {
9397 struct i802_bss *bss = priv;
9398 struct wpa_driver_nl80211_data *drv = bss->drv;
9399 struct nl_msg *msg;
9400 int ret;
9401
9402 #ifdef CONFIG_TESTING_OPTIONS
9403 if (vendor_id == 0xffffffff) {
9404 msg = nlmsg_alloc();
9405 if (!msg)
9406 return -ENOMEM;
9407
9408 nl80211_cmd(drv, msg, 0, subcmd);
9409 if (nlmsg_append(msg, (void *) data, data_len, NLMSG_ALIGNTO) <
9410 0)
9411 goto fail;
9412 ret = send_and_recv_msgs(drv, msg, cmd_reply_handler, buf);
9413 if (ret)
9414 wpa_printf(MSG_DEBUG, "nl80211: command failed err=%d",
9415 ret);
9416 return ret;
9417 }
9418 #endif /* CONFIG_TESTING_OPTIONS */
9419
9420 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_VENDOR)) ||
9421 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, vendor_id) ||
9422 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, subcmd) ||
9423 (data &&
9424 nla_put(msg, NL80211_ATTR_VENDOR_DATA, data_len, data)))
9425 goto fail;
9426
9427 ret = send_and_recv_msgs(drv, msg, vendor_reply_handler, buf);
9428 if (ret)
9429 wpa_printf(MSG_DEBUG, "nl80211: vendor command failed err=%d",
9430 ret);
9431 return ret;
9432
9433 fail:
9434 nlmsg_free(msg);
9435 return -ENOBUFS;
9436 }
9437
9438
9439 static int nl80211_set_qos_map(void *priv, const u8 *qos_map_set,
9440 u8 qos_map_set_len)
9441 {
9442 struct i802_bss *bss = priv;
9443 struct wpa_driver_nl80211_data *drv = bss->drv;
9444 struct nl_msg *msg;
9445 int ret;
9446
9447 wpa_hexdump(MSG_DEBUG, "nl80211: Setting QoS Map",
9448 qos_map_set, qos_map_set_len);
9449
9450 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_SET_QOS_MAP)) ||
9451 nla_put(msg, NL80211_ATTR_QOS_MAP, qos_map_set_len, qos_map_set)) {
9452 nlmsg_free(msg);
9453 return -ENOBUFS;
9454 }
9455
9456 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
9457 if (ret)
9458 wpa_printf(MSG_DEBUG, "nl80211: Setting QoS Map failed");
9459
9460 return ret;
9461 }
9462
9463
9464 static int get_wowlan_handler(struct nl_msg *msg, void *arg)
9465 {
9466 struct nlattr *tb[NL80211_ATTR_MAX + 1];
9467 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
9468 int *wowlan_enabled = arg;
9469
9470 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
9471 genlmsg_attrlen(gnlh, 0), NULL);
9472
9473 *wowlan_enabled = !!tb[NL80211_ATTR_WOWLAN_TRIGGERS];
9474
9475 return NL_SKIP;
9476 }
9477
9478
9479 static int nl80211_get_wowlan(void *priv)
9480 {
9481 struct i802_bss *bss = priv;
9482 struct wpa_driver_nl80211_data *drv = bss->drv;
9483 struct nl_msg *msg;
9484 int wowlan_enabled;
9485 int ret;
9486
9487 wpa_printf(MSG_DEBUG, "nl80211: Getting wowlan status");
9488
9489 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_GET_WOWLAN);
9490
9491 ret = send_and_recv_msgs(drv, msg, get_wowlan_handler, &wowlan_enabled);
9492 if (ret) {
9493 wpa_printf(MSG_DEBUG, "nl80211: Getting wowlan status failed");
9494 return 0;
9495 }
9496
9497 wpa_printf(MSG_DEBUG, "nl80211: wowlan is %s",
9498 wowlan_enabled ? "enabled" : "disabled");
9499
9500 return wowlan_enabled;
9501 }
9502
9503
9504 static int nl80211_set_wowlan(void *priv,
9505 const struct wowlan_triggers *triggers)
9506 {
9507 struct i802_bss *bss = priv;
9508 struct wpa_driver_nl80211_data *drv = bss->drv;
9509 struct nl_msg *msg;
9510 struct nlattr *wowlan_triggers;
9511 int ret;
9512
9513 wpa_printf(MSG_DEBUG, "nl80211: Setting wowlan");
9514
9515 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_SET_WOWLAN)) ||
9516 !(wowlan_triggers = nla_nest_start(msg,
9517 NL80211_ATTR_WOWLAN_TRIGGERS)) ||
9518 (triggers->any &&
9519 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
9520 (triggers->disconnect &&
9521 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
9522 (triggers->magic_pkt &&
9523 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
9524 (triggers->gtk_rekey_failure &&
9525 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
9526 (triggers->eap_identity_req &&
9527 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
9528 (triggers->four_way_handshake &&
9529 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
9530 (triggers->rfkill_release &&
9531 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))) {
9532 nlmsg_free(msg);
9533 return -ENOBUFS;
9534 }
9535
9536 nla_nest_end(msg, wowlan_triggers);
9537
9538 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
9539 if (ret)
9540 wpa_printf(MSG_DEBUG, "nl80211: Setting wowlan failed");
9541
9542 return ret;
9543 }
9544
9545
9546 #ifdef CONFIG_DRIVER_NL80211_QCA
9547 static int nl80211_roaming(void *priv, int allowed, const u8 *bssid)
9548 {
9549 struct i802_bss *bss = priv;
9550 struct wpa_driver_nl80211_data *drv = bss->drv;
9551 struct nl_msg *msg;
9552 struct nlattr *params;
9553
9554 wpa_printf(MSG_DEBUG, "nl80211: Roaming policy: allowed=%d", allowed);
9555
9556 if (!drv->roaming_vendor_cmd_avail) {
9557 wpa_printf(MSG_DEBUG,
9558 "nl80211: Ignore roaming policy change since driver does not provide command for setting it");
9559 return -1;
9560 }
9561
9562 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
9563 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
9564 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
9565 QCA_NL80211_VENDOR_SUBCMD_ROAMING) ||
9566 !(params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) ||
9567 nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_ROAMING_POLICY,
9568 allowed ? QCA_ROAMING_ALLOWED_WITHIN_ESS :
9569 QCA_ROAMING_NOT_ALLOWED) ||
9570 (bssid &&
9571 nla_put(msg, QCA_WLAN_VENDOR_ATTR_MAC_ADDR, ETH_ALEN, bssid))) {
9572 nlmsg_free(msg);
9573 return -1;
9574 }
9575 nla_nest_end(msg, params);
9576
9577 return send_and_recv_msgs(drv, msg, NULL, NULL);
9578 }
9579
9580
9581 static int nl80211_disable_fils(void *priv, int disable)
9582 {
9583 struct i802_bss *bss = priv;
9584 struct wpa_driver_nl80211_data *drv = bss->drv;
9585 struct nl_msg *msg;
9586 struct nlattr *params;
9587
9588 wpa_printf(MSG_DEBUG, "nl80211: Disable FILS=%d", disable);
9589
9590 if (!drv->set_wifi_conf_vendor_cmd_avail)
9591 return -1;
9592
9593 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
9594 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
9595 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
9596 QCA_NL80211_VENDOR_SUBCMD_SET_WIFI_CONFIGURATION) ||
9597 !(params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) ||
9598 nla_put_u8(msg, QCA_WLAN_VENDOR_ATTR_CONFIG_DISABLE_FILS,
9599 disable)) {
9600 nlmsg_free(msg);
9601 return -1;
9602 }
9603 nla_nest_end(msg, params);
9604
9605 return send_and_recv_msgs(drv, msg, NULL, NULL);
9606 }
9607
9608
9609 /* Reserved QCA_WLAN_VENDOR_ATTR_ROAMING_REQ_ID value for wpa_supplicant */
9610 #define WPA_SUPPLICANT_CLIENT_ID 1
9611
9612 static int nl80211_set_bssid_blacklist(void *priv, unsigned int num_bssid,
9613 const u8 *bssid)
9614 {
9615 struct i802_bss *bss = priv;
9616 struct wpa_driver_nl80211_data *drv = bss->drv;
9617 struct nl_msg *msg;
9618 struct nlattr *params, *nlbssids, *attr;
9619 unsigned int i;
9620
9621 wpa_printf(MSG_DEBUG, "nl80211: Set blacklist BSSID (num=%u)",
9622 num_bssid);
9623
9624 if (!drv->roam_vendor_cmd_avail)
9625 return -1;
9626
9627 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
9628 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
9629 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
9630 QCA_NL80211_VENDOR_SUBCMD_ROAM) ||
9631 !(params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) ||
9632 nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_ROAMING_SUBCMD,
9633 QCA_WLAN_VENDOR_ROAMING_SUBCMD_SET_BLACKLIST_BSSID) ||
9634 nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_ROAMING_REQ_ID,
9635 WPA_SUPPLICANT_CLIENT_ID) ||
9636 nla_put_u32(msg,
9637 QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_SET_BSSID_PARAMS_NUM_BSSID,
9638 num_bssid))
9639 goto fail;
9640
9641 nlbssids = nla_nest_start(
9642 msg, QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_SET_BSSID_PARAMS);
9643 if (!nlbssids)
9644 goto fail;
9645
9646 for (i = 0; i < num_bssid; i++) {
9647 attr = nla_nest_start(msg, i);
9648 if (!attr)
9649 goto fail;
9650 if (nla_put(msg,
9651 QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_SET_BSSID_PARAMS_BSSID,
9652 ETH_ALEN, &bssid[i * ETH_ALEN]))
9653 goto fail;
9654 wpa_printf(MSG_DEBUG, "nl80211: BSSID[%u]: " MACSTR, i,
9655 MAC2STR(&bssid[i * ETH_ALEN]));
9656 nla_nest_end(msg, attr);
9657 }
9658 nla_nest_end(msg, nlbssids);
9659 nla_nest_end(msg, params);
9660
9661 return send_and_recv_msgs(drv, msg, NULL, NULL);
9662
9663 fail:
9664 nlmsg_free(msg);
9665 return -1;
9666 }
9667
9668
9669 static int nl80211_add_sta_node(void *priv, const u8 *addr, u16 auth_alg)
9670 {
9671 struct i802_bss *bss = priv;
9672 struct wpa_driver_nl80211_data *drv = bss->drv;
9673 struct nl_msg *msg;
9674 struct nlattr *params;
9675
9676 if (!drv->add_sta_node_vendor_cmd_avail)
9677 return -EOPNOTSUPP;
9678
9679 wpa_printf(MSG_DEBUG, "nl80211: Add STA node");
9680
9681 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
9682 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
9683 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
9684 QCA_NL80211_VENDOR_SUBCMD_ADD_STA_NODE) ||
9685 !(params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) ||
9686 (addr &&
9687 nla_put(msg, QCA_WLAN_VENDOR_ATTR_ADD_STA_NODE_MAC_ADDR, ETH_ALEN,
9688 addr)) ||
9689 nla_put_u16(msg, QCA_WLAN_VENDOR_ATTR_ADD_STA_NODE_AUTH_ALGO,
9690 auth_alg)) {
9691 nlmsg_free(msg);
9692 wpa_printf(MSG_ERROR,
9693 "%s: err in adding vendor_cmd and vendor_data",
9694 __func__);
9695 return -1;
9696 }
9697 nla_nest_end(msg, params);
9698
9699 return send_and_recv_msgs(drv, msg, NULL, NULL);
9700 }
9701
9702 #endif /* CONFIG_DRIVER_NL80211_QCA */
9703
9704
9705 static int nl80211_set_mac_addr(void *priv, const u8 *addr)
9706 {
9707 struct i802_bss *bss = priv;
9708 struct wpa_driver_nl80211_data *drv = bss->drv;
9709 int new_addr = addr != NULL;
9710
9711 if (TEST_FAIL())
9712 return -1;
9713
9714 if (!addr)
9715 addr = drv->perm_addr;
9716
9717 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0) < 0)
9718 return -1;
9719
9720 if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, addr) < 0)
9721 {
9722 wpa_printf(MSG_DEBUG,
9723 "nl80211: failed to set_mac_addr for %s to " MACSTR,
9724 bss->ifname, MAC2STR(addr));
9725 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname,
9726 1) < 0) {
9727 wpa_printf(MSG_DEBUG,
9728 "nl80211: Could not restore interface UP after failed set_mac_addr");
9729 }
9730 return -1;
9731 }
9732
9733 wpa_printf(MSG_DEBUG, "nl80211: set_mac_addr for %s to " MACSTR,
9734 bss->ifname, MAC2STR(addr));
9735 drv->addr_changed = new_addr;
9736 os_memcpy(bss->addr, addr, ETH_ALEN);
9737
9738 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1) < 0)
9739 {
9740 wpa_printf(MSG_DEBUG,
9741 "nl80211: Could not restore interface UP after set_mac_addr");
9742 }
9743
9744 return 0;
9745 }
9746
9747
9748 #ifdef CONFIG_MESH
9749
9750 static int wpa_driver_nl80211_init_mesh(void *priv)
9751 {
9752 if (wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_MESH_POINT)) {
9753 wpa_printf(MSG_INFO,
9754 "nl80211: Failed to set interface into mesh mode");
9755 return -1;
9756 }
9757 return 0;
9758 }
9759
9760
9761 static int nl80211_put_mesh_id(struct nl_msg *msg, const u8 *mesh_id,
9762 size_t mesh_id_len)
9763 {
9764 if (mesh_id) {
9765 wpa_printf(MSG_DEBUG, " * Mesh ID (SSID)=%s",
9766 wpa_ssid_txt(mesh_id, mesh_id_len));
9767 return nla_put(msg, NL80211_ATTR_MESH_ID, mesh_id_len, mesh_id);
9768 }
9769
9770 return 0;
9771 }
9772
9773
9774 static int nl80211_put_mesh_config(struct nl_msg *msg,
9775 struct wpa_driver_mesh_bss_params *params)
9776 {
9777 struct nlattr *container;
9778
9779 container = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
9780 if (!container)
9781 return -1;
9782
9783 if (((params->flags & WPA_DRIVER_MESH_CONF_FLAG_AUTO_PLINKS) &&
9784 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
9785 params->auto_plinks)) ||
9786 ((params->flags & WPA_DRIVER_MESH_CONF_FLAG_MAX_PEER_LINKS) &&
9787 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
9788 params->max_peer_links)) ||
9789 ((params->flags & WPA_DRIVER_MESH_CONF_FLAG_RSSI_THRESHOLD) &&
9790 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
9791 params->rssi_threshold)))
9792 return -1;
9793
9794 /*
9795 * Set NL80211_MESHCONF_PLINK_TIMEOUT even if user mpm is used because
9796 * the timer could disconnect stations even in that case.
9797 */
9798 if ((params->flags & WPA_DRIVER_MESH_CONF_FLAG_PEER_LINK_TIMEOUT) &&
9799 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
9800 params->peer_link_timeout)) {
9801 wpa_printf(MSG_ERROR, "nl80211: Failed to set PLINK_TIMEOUT");
9802 return -1;
9803 }
9804
9805 if ((params->flags & WPA_DRIVER_MESH_CONF_FLAG_HT_OP_MODE) &&
9806 nla_put_u16(msg, NL80211_MESHCONF_HT_OPMODE, params->ht_opmode)) {
9807 wpa_printf(MSG_ERROR, "nl80211: Failed to set HT_OP_MODE");
9808 return -1;
9809 }
9810
9811 nla_nest_end(msg, container);
9812
9813 return 0;
9814 }
9815
9816
9817 static int nl80211_join_mesh(struct i802_bss *bss,
9818 struct wpa_driver_mesh_join_params *params)
9819 {
9820 struct wpa_driver_nl80211_data *drv = bss->drv;
9821 struct nl_msg *msg;
9822 struct nlattr *container;
9823 int ret = -1;
9824
9825 wpa_printf(MSG_DEBUG, "nl80211: mesh join (ifindex=%d)", drv->ifindex);
9826 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_JOIN_MESH);
9827 if (!msg ||
9828 nl80211_put_freq_params(msg, &params->freq) ||
9829 nl80211_put_basic_rates(msg, params->basic_rates) ||
9830 nl80211_put_mesh_id(msg, params->meshid, params->meshid_len) ||
9831 nl80211_put_beacon_int(msg, params->beacon_int) ||
9832 nl80211_put_dtim_period(msg, params->dtim_period))
9833 goto fail;
9834
9835 wpa_printf(MSG_DEBUG, " * flags=%08X", params->flags);
9836
9837 container = nla_nest_start(msg, NL80211_ATTR_MESH_SETUP);
9838 if (!container)
9839 goto fail;
9840
9841 if (params->ies) {
9842 wpa_hexdump(MSG_DEBUG, " * IEs", params->ies, params->ie_len);
9843 if (nla_put(msg, NL80211_MESH_SETUP_IE, params->ie_len,
9844 params->ies))
9845 goto fail;
9846 }
9847 /* WPA_DRIVER_MESH_FLAG_OPEN_AUTH is treated as default by nl80211 */
9848 if (params->flags & WPA_DRIVER_MESH_FLAG_SAE_AUTH) {
9849 if (nla_put_u8(msg, NL80211_MESH_SETUP_AUTH_PROTOCOL, 0x1) ||
9850 nla_put_flag(msg, NL80211_MESH_SETUP_USERSPACE_AUTH))
9851 goto fail;
9852 }
9853 if ((params->flags & WPA_DRIVER_MESH_FLAG_AMPE) &&
9854 nla_put_flag(msg, NL80211_MESH_SETUP_USERSPACE_AMPE))
9855 goto fail;
9856 if ((params->flags & WPA_DRIVER_MESH_FLAG_USER_MPM) &&
9857 nla_put_flag(msg, NL80211_MESH_SETUP_USERSPACE_MPM))
9858 goto fail;
9859 nla_nest_end(msg, container);
9860
9861 params->conf.flags |= WPA_DRIVER_MESH_CONF_FLAG_AUTO_PLINKS;
9862 params->conf.flags |= WPA_DRIVER_MESH_CONF_FLAG_PEER_LINK_TIMEOUT;
9863 params->conf.flags |= WPA_DRIVER_MESH_CONF_FLAG_MAX_PEER_LINKS;
9864 if (nl80211_put_mesh_config(msg, &params->conf) < 0)
9865 goto fail;
9866
9867 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
9868 msg = NULL;
9869 if (ret) {
9870 wpa_printf(MSG_DEBUG, "nl80211: mesh join failed: ret=%d (%s)",
9871 ret, strerror(-ret));
9872 goto fail;
9873 }
9874 ret = 0;
9875 drv->assoc_freq = bss->freq = params->freq.freq;
9876 wpa_printf(MSG_DEBUG, "nl80211: mesh join request send successfully");
9877
9878 fail:
9879 nlmsg_free(msg);
9880 return ret;
9881 }
9882
9883
9884 static int
9885 wpa_driver_nl80211_join_mesh(void *priv,
9886 struct wpa_driver_mesh_join_params *params)
9887 {
9888 struct i802_bss *bss = priv;
9889 int ret, timeout;
9890
9891 timeout = params->conf.peer_link_timeout;
9892
9893 /* Disable kernel inactivity timer */
9894 if (params->flags & WPA_DRIVER_MESH_FLAG_USER_MPM)
9895 params->conf.peer_link_timeout = 0;
9896
9897 ret = nl80211_join_mesh(bss, params);
9898 if (ret == -EINVAL && params->conf.peer_link_timeout == 0) {
9899 wpa_printf(MSG_DEBUG,
9900 "nl80211: Mesh join retry for peer_link_timeout");
9901 /*
9902 * Old kernel does not support setting
9903 * NL80211_MESHCONF_PLINK_TIMEOUT to zero, so set 60 seconds
9904 * into future from peer_link_timeout.
9905 */
9906 params->conf.peer_link_timeout = timeout + 60;
9907 ret = nl80211_join_mesh(priv, params);
9908 }
9909
9910 params->conf.peer_link_timeout = timeout;
9911 return ret;
9912 }
9913
9914
9915 static int wpa_driver_nl80211_leave_mesh(void *priv)
9916 {
9917 struct i802_bss *bss = priv;
9918 struct wpa_driver_nl80211_data *drv = bss->drv;
9919 struct nl_msg *msg;
9920 int ret;
9921
9922 wpa_printf(MSG_DEBUG, "nl80211: mesh leave (ifindex=%d)", drv->ifindex);
9923 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_LEAVE_MESH);
9924 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
9925 if (ret) {
9926 wpa_printf(MSG_DEBUG, "nl80211: mesh leave failed: ret=%d (%s)",
9927 ret, strerror(-ret));
9928 } else {
9929 wpa_printf(MSG_DEBUG,
9930 "nl80211: mesh leave request send successfully");
9931 }
9932
9933 if (wpa_driver_nl80211_set_mode(drv->first_bss,
9934 NL80211_IFTYPE_STATION)) {
9935 wpa_printf(MSG_INFO,
9936 "nl80211: Failed to set interface into station mode");
9937 }
9938 return ret;
9939 }
9940
9941
9942 static int nl80211_probe_mesh_link(void *priv, const u8 *addr, const u8 *eth,
9943 size_t len)
9944 {
9945 struct i802_bss *bss = priv;
9946 struct wpa_driver_nl80211_data *drv = bss->drv;
9947 struct nl_msg *msg;
9948 int ret;
9949
9950 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_PROBE_MESH_LINK);
9951 if (!msg ||
9952 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9953 nla_put(msg, NL80211_ATTR_FRAME, len, eth)) {
9954 nlmsg_free(msg);
9955 return -ENOBUFS;
9956 }
9957
9958 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
9959 if (ret) {
9960 wpa_printf(MSG_DEBUG, "nl80211: mesh link probe to " MACSTR
9961 " failed: ret=%d (%s)",
9962 MAC2STR(addr), ret, strerror(-ret));
9963 } else {
9964 wpa_printf(MSG_DEBUG, "nl80211: Mesh link to " MACSTR
9965 " probed successfully", MAC2STR(addr));
9966 }
9967
9968 return ret;
9969 }
9970
9971 #endif /* CONFIG_MESH */
9972
9973
9974 static int wpa_driver_br_add_ip_neigh(void *priv, u8 version,
9975 const u8 *ipaddr, int prefixlen,
9976 const u8 *addr)
9977 {
9978 #ifdef CONFIG_LIBNL3_ROUTE
9979 struct i802_bss *bss = priv;
9980 struct wpa_driver_nl80211_data *drv = bss->drv;
9981 struct rtnl_neigh *rn;
9982 struct nl_addr *nl_ipaddr = NULL;
9983 struct nl_addr *nl_lladdr = NULL;
9984 int family, addrsize;
9985 int res;
9986
9987 if (!ipaddr || prefixlen == 0 || !addr)
9988 return -EINVAL;
9989
9990 if (bss->br_ifindex == 0) {
9991 wpa_printf(MSG_DEBUG,
9992 "nl80211: bridge must be set before adding an ip neigh to it");
9993 return -1;
9994 }
9995
9996 if (!drv->rtnl_sk) {
9997 wpa_printf(MSG_DEBUG,
9998 "nl80211: nl_sock for NETLINK_ROUTE is not initialized");
9999 return -1;
10000 }
10001
10002 if (version == 4) {
10003 family = AF_INET;
10004 addrsize = 4;
10005 } else if (version == 6) {
10006 family = AF_INET6;
10007 addrsize = 16;
10008 } else {
10009 return -EINVAL;
10010 }
10011
10012 rn = rtnl_neigh_alloc();
10013 if (rn == NULL)
10014 return -ENOMEM;
10015
10016 /* set the destination ip address for neigh */
10017 nl_ipaddr = nl_addr_build(family, (void *) ipaddr, addrsize);
10018 if (nl_ipaddr == NULL) {
10019 wpa_printf(MSG_DEBUG, "nl80211: nl_ipaddr build failed");
10020 res = -ENOMEM;
10021 goto errout;
10022 }
10023 nl_addr_set_prefixlen(nl_ipaddr, prefixlen);
10024 res = rtnl_neigh_set_dst(rn, nl_ipaddr);
10025 if (res) {
10026 wpa_printf(MSG_DEBUG,
10027 "nl80211: neigh set destination addr failed");
10028 goto errout;
10029 }
10030
10031 /* set the corresponding lladdr for neigh */
10032 nl_lladdr = nl_addr_build(AF_BRIDGE, (u8 *) addr, ETH_ALEN);
10033 if (nl_lladdr == NULL) {
10034 wpa_printf(MSG_DEBUG, "nl80211: neigh set lladdr failed");
10035 res = -ENOMEM;
10036 goto errout;
10037 }
10038 rtnl_neigh_set_lladdr(rn, nl_lladdr);
10039
10040 rtnl_neigh_set_ifindex(rn, bss->br_ifindex);
10041 rtnl_neigh_set_state(rn, NUD_PERMANENT);
10042
10043 res = rtnl_neigh_add(drv->rtnl_sk, rn, NLM_F_CREATE);
10044 if (res) {
10045 wpa_printf(MSG_DEBUG,
10046 "nl80211: Adding bridge ip neigh failed: %s",
10047 nl_geterror(res));
10048 }
10049 errout:
10050 if (nl_lladdr)
10051 nl_addr_put(nl_lladdr);
10052 if (nl_ipaddr)
10053 nl_addr_put(nl_ipaddr);
10054 if (rn)
10055 rtnl_neigh_put(rn);
10056 return res;
10057 #else /* CONFIG_LIBNL3_ROUTE */
10058 return -1;
10059 #endif /* CONFIG_LIBNL3_ROUTE */
10060 }
10061
10062
10063 static int wpa_driver_br_delete_ip_neigh(void *priv, u8 version,
10064 const u8 *ipaddr)
10065 {
10066 #ifdef CONFIG_LIBNL3_ROUTE
10067 struct i802_bss *bss = priv;
10068 struct wpa_driver_nl80211_data *drv = bss->drv;
10069 struct rtnl_neigh *rn;
10070 struct nl_addr *nl_ipaddr;
10071 int family, addrsize;
10072 int res;
10073
10074 if (!ipaddr)
10075 return -EINVAL;
10076
10077 if (version == 4) {
10078 family = AF_INET;
10079 addrsize = 4;
10080 } else if (version == 6) {
10081 family = AF_INET6;
10082 addrsize = 16;
10083 } else {
10084 return -EINVAL;
10085 }
10086
10087 if (bss->br_ifindex == 0) {
10088 wpa_printf(MSG_DEBUG,
10089 "nl80211: bridge must be set to delete an ip neigh");
10090 return -1;
10091 }
10092
10093 if (!drv->rtnl_sk) {
10094 wpa_printf(MSG_DEBUG,
10095 "nl80211: nl_sock for NETLINK_ROUTE is not initialized");
10096 return -1;
10097 }
10098
10099 rn = rtnl_neigh_alloc();
10100 if (rn == NULL)
10101 return -ENOMEM;
10102
10103 /* set the destination ip address for neigh */
10104 nl_ipaddr = nl_addr_build(family, (void *) ipaddr, addrsize);
10105 if (nl_ipaddr == NULL) {
10106 wpa_printf(MSG_DEBUG, "nl80211: nl_ipaddr build failed");
10107 res = -ENOMEM;
10108 goto errout;
10109 }
10110 res = rtnl_neigh_set_dst(rn, nl_ipaddr);
10111 if (res) {
10112 wpa_printf(MSG_DEBUG,
10113 "nl80211: neigh set destination addr failed");
10114 goto errout;
10115 }
10116
10117 rtnl_neigh_set_ifindex(rn, bss->br_ifindex);
10118
10119 res = rtnl_neigh_delete(drv->rtnl_sk, rn, 0);
10120 if (res) {
10121 wpa_printf(MSG_DEBUG,
10122 "nl80211: Deleting bridge ip neigh failed: %s",
10123 nl_geterror(res));
10124 }
10125 errout:
10126 if (nl_ipaddr)
10127 nl_addr_put(nl_ipaddr);
10128 if (rn)
10129 rtnl_neigh_put(rn);
10130 return res;
10131 #else /* CONFIG_LIBNL3_ROUTE */
10132 return -1;
10133 #endif /* CONFIG_LIBNL3_ROUTE */
10134 }
10135
10136
10137 static int linux_write_system_file(const char *path, unsigned int val)
10138 {
10139 char buf[50];
10140 int fd, len;
10141
10142 len = os_snprintf(buf, sizeof(buf), "%u\n", val);
10143 if (os_snprintf_error(sizeof(buf), len))
10144 return -1;
10145
10146 fd = open(path, O_WRONLY);
10147 if (fd < 0)
10148 return -1;
10149
10150 if (write(fd, buf, len) < 0) {
10151 wpa_printf(MSG_DEBUG,
10152 "nl80211: Failed to write Linux system file: %s with the value of %d",
10153 path, val);
10154 close(fd);
10155 return -1;
10156 }
10157 close(fd);
10158
10159 return 0;
10160 }
10161
10162
10163 static const char * drv_br_port_attr_str(enum drv_br_port_attr attr)
10164 {
10165 switch (attr) {
10166 case DRV_BR_PORT_ATTR_PROXYARP:
10167 return "proxyarp_wifi";
10168 case DRV_BR_PORT_ATTR_HAIRPIN_MODE:
10169 return "hairpin_mode";
10170 }
10171
10172 return NULL;
10173 }
10174
10175
10176 static int wpa_driver_br_port_set_attr(void *priv, enum drv_br_port_attr attr,
10177 unsigned int val)
10178 {
10179 struct i802_bss *bss = priv;
10180 char path[128];
10181 const char *attr_txt;
10182
10183 attr_txt = drv_br_port_attr_str(attr);
10184 if (attr_txt == NULL)
10185 return -EINVAL;
10186
10187 os_snprintf(path, sizeof(path), "/sys/class/net/%s/brport/%s",
10188 bss->ifname, attr_txt);
10189
10190 if (linux_write_system_file(path, val))
10191 return -1;
10192
10193 return 0;
10194 }
10195
10196
10197 static const char * drv_br_net_param_str(enum drv_br_net_param param)
10198 {
10199 switch (param) {
10200 case DRV_BR_NET_PARAM_GARP_ACCEPT:
10201 return "arp_accept";
10202 default:
10203 return NULL;
10204 }
10205 }
10206
10207
10208 static int wpa_driver_br_set_net_param(void *priv, enum drv_br_net_param param,
10209 unsigned int val)
10210 {
10211 struct i802_bss *bss = priv;
10212 char path[128];
10213 const char *param_txt;
10214 int ip_version = 4;
10215
10216 if (param == DRV_BR_MULTICAST_SNOOPING) {
10217 os_snprintf(path, sizeof(path),
10218 "/sys/devices/virtual/net/%s/bridge/multicast_snooping",
10219 bss->brname);
10220 goto set_val;
10221 }
10222
10223 param_txt = drv_br_net_param_str(param);
10224 if (param_txt == NULL)
10225 return -EINVAL;
10226
10227 switch (param) {
10228 case DRV_BR_NET_PARAM_GARP_ACCEPT:
10229 ip_version = 4;
10230 break;
10231 default:
10232 return -EINVAL;
10233 }
10234
10235 os_snprintf(path, sizeof(path), "/proc/sys/net/ipv%d/conf/%s/%s",
10236 ip_version, bss->brname, param_txt);
10237
10238 set_val:
10239 if (linux_write_system_file(path, val))
10240 return -1;
10241
10242 return 0;
10243 }
10244
10245
10246 #ifdef CONFIG_DRIVER_NL80211_QCA
10247
10248 static int hw_mode_to_qca_acs(enum hostapd_hw_mode hw_mode)
10249 {
10250 switch (hw_mode) {
10251 case HOSTAPD_MODE_IEEE80211B:
10252 return QCA_ACS_MODE_IEEE80211B;
10253 case HOSTAPD_MODE_IEEE80211G:
10254 return QCA_ACS_MODE_IEEE80211G;
10255 case HOSTAPD_MODE_IEEE80211A:
10256 return QCA_ACS_MODE_IEEE80211A;
10257 case HOSTAPD_MODE_IEEE80211AD:
10258 return QCA_ACS_MODE_IEEE80211AD;
10259 case HOSTAPD_MODE_IEEE80211ANY:
10260 return QCA_ACS_MODE_IEEE80211ANY;
10261 default:
10262 return -1;
10263 }
10264 }
10265
10266
10267 static int add_acs_ch_list(struct nl_msg *msg, const int *freq_list)
10268 {
10269 int num_channels = 0, num_freqs;
10270 u8 *ch_list;
10271 enum hostapd_hw_mode hw_mode;
10272 int ret = 0;
10273 int i;
10274
10275 if (!freq_list)
10276 return 0;
10277
10278 num_freqs = int_array_len(freq_list);
10279 ch_list = os_malloc(sizeof(u8) * num_freqs);
10280 if (!ch_list)
10281 return -1;
10282
10283 for (i = 0; i < num_freqs; i++) {
10284 const int freq = freq_list[i];
10285
10286 if (freq == 0)
10287 break;
10288 /* Send 2.4 GHz and 5 GHz channels with
10289 * QCA_WLAN_VENDOR_ATTR_ACS_CH_LIST to maintain backwards
10290 * compatibility.
10291 */
10292 if (!(freq >= 2412 && freq <= 2484) &&
10293 !(freq >= 5180 && freq <= 5900))
10294 continue;
10295 hw_mode = ieee80211_freq_to_chan(freq, &ch_list[num_channels]);
10296 if (hw_mode != NUM_HOSTAPD_MODES)
10297 num_channels++;
10298 }
10299
10300 if (num_channels)
10301 ret = nla_put(msg, QCA_WLAN_VENDOR_ATTR_ACS_CH_LIST,
10302 num_channels, ch_list);
10303
10304 os_free(ch_list);
10305 return ret;
10306 }
10307
10308
10309 static int add_acs_freq_list(struct nl_msg *msg, const int *freq_list)
10310 {
10311 int i, len, ret;
10312 u32 *freqs;
10313
10314 if (!freq_list)
10315 return 0;
10316 len = int_array_len(freq_list);
10317 freqs = os_malloc(sizeof(u32) * len);
10318 if (!freqs)
10319 return -1;
10320 for (i = 0; i < len; i++)
10321 freqs[i] = freq_list[i];
10322 ret = nla_put(msg, QCA_WLAN_VENDOR_ATTR_ACS_FREQ_LIST,
10323 sizeof(u32) * len, freqs);
10324 os_free(freqs);
10325 return ret;
10326 }
10327
10328
10329 static int wpa_driver_do_acs(void *priv, struct drv_acs_params *params)
10330 {
10331 struct i802_bss *bss = priv;
10332 struct wpa_driver_nl80211_data *drv = bss->drv;
10333 struct nl_msg *msg;
10334 struct nlattr *data;
10335 int ret;
10336 int mode;
10337
10338 mode = hw_mode_to_qca_acs(params->hw_mode);
10339 if (mode < 0)
10340 return -1;
10341
10342 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
10343 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
10344 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
10345 QCA_NL80211_VENDOR_SUBCMD_DO_ACS) ||
10346 !(data = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) ||
10347 nla_put_u8(msg, QCA_WLAN_VENDOR_ATTR_ACS_HW_MODE, mode) ||
10348 (params->ht_enabled &&
10349 nla_put_flag(msg, QCA_WLAN_VENDOR_ATTR_ACS_HT_ENABLED)) ||
10350 (params->ht40_enabled &&
10351 nla_put_flag(msg, QCA_WLAN_VENDOR_ATTR_ACS_HT40_ENABLED)) ||
10352 (params->vht_enabled &&
10353 nla_put_flag(msg, QCA_WLAN_VENDOR_ATTR_ACS_VHT_ENABLED)) ||
10354 nla_put_u16(msg, QCA_WLAN_VENDOR_ATTR_ACS_CHWIDTH,
10355 params->ch_width) ||
10356 add_acs_ch_list(msg, params->freq_list) ||
10357 add_acs_freq_list(msg, params->freq_list)) {
10358 nlmsg_free(msg);
10359 return -ENOBUFS;
10360 }
10361 nla_nest_end(msg, data);
10362
10363 wpa_printf(MSG_DEBUG,
10364 "nl80211: ACS Params: HW_MODE: %d HT: %d HT40: %d VHT: %d BW: %d",
10365 params->hw_mode, params->ht_enabled, params->ht40_enabled,
10366 params->vht_enabled, params->ch_width);
10367
10368 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
10369 if (ret) {
10370 wpa_printf(MSG_DEBUG,
10371 "nl80211: Failed to invoke driver ACS function: %s",
10372 strerror(-ret));
10373 }
10374 return ret;
10375 }
10376
10377
10378 static int nl80211_set_band(void *priv, enum set_band band)
10379 {
10380 struct i802_bss *bss = priv;
10381 struct wpa_driver_nl80211_data *drv = bss->drv;
10382 struct nl_msg *msg;
10383 struct nlattr *data;
10384 int ret;
10385 enum qca_set_band qca_band;
10386
10387 if (!drv->setband_vendor_cmd_avail)
10388 return -1;
10389
10390 switch (band) {
10391 case WPA_SETBAND_AUTO:
10392 qca_band = QCA_SETBAND_AUTO;
10393 break;
10394 case WPA_SETBAND_5G:
10395 qca_band = QCA_SETBAND_5G;
10396 break;
10397 case WPA_SETBAND_2G:
10398 qca_band = QCA_SETBAND_2G;
10399 break;
10400 default:
10401 return -1;
10402 }
10403
10404 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
10405 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
10406 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
10407 QCA_NL80211_VENDOR_SUBCMD_SETBAND) ||
10408 !(data = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) ||
10409 nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_SETBAND_VALUE, qca_band)) {
10410 nlmsg_free(msg);
10411 return -ENOBUFS;
10412 }
10413 nla_nest_end(msg, data);
10414
10415 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
10416 if (ret) {
10417 wpa_printf(MSG_DEBUG,
10418 "nl80211: Driver setband function failed: %s",
10419 strerror(-ret));
10420 }
10421 return ret;
10422 }
10423
10424
10425 struct nl80211_pcl {
10426 unsigned int num;
10427 unsigned int *freq_list;
10428 };
10429
10430 static int preferred_freq_info_handler(struct nl_msg *msg, void *arg)
10431 {
10432 struct nlattr *tb[NL80211_ATTR_MAX + 1];
10433 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
10434 struct nl80211_pcl *param = arg;
10435 struct nlattr *nl_vend, *attr;
10436 enum qca_iface_type iface_type;
10437 struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_MAX + 1];
10438 unsigned int num, max_num;
10439 u32 *freqs;
10440
10441 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
10442 genlmsg_attrlen(gnlh, 0), NULL);
10443
10444 nl_vend = tb[NL80211_ATTR_VENDOR_DATA];
10445 if (!nl_vend)
10446 return NL_SKIP;
10447
10448 nla_parse(tb_vendor, QCA_WLAN_VENDOR_ATTR_MAX,
10449 nla_data(nl_vend), nla_len(nl_vend), NULL);
10450
10451 attr = tb_vendor[
10452 QCA_WLAN_VENDOR_ATTR_GET_PREFERRED_FREQ_LIST_IFACE_TYPE];
10453 if (!attr) {
10454 wpa_printf(MSG_ERROR, "nl80211: iface_type couldn't be found");
10455 param->num = 0;
10456 return NL_SKIP;
10457 }
10458
10459 iface_type = (enum qca_iface_type) nla_get_u32(attr);
10460 wpa_printf(MSG_DEBUG, "nl80211: Driver returned iface_type=%d",
10461 iface_type);
10462
10463 attr = tb_vendor[QCA_WLAN_VENDOR_ATTR_GET_PREFERRED_FREQ_LIST];
10464 if (!attr) {
10465 wpa_printf(MSG_ERROR,
10466 "nl80211: preferred_freq_list couldn't be found");
10467 param->num = 0;
10468 return NL_SKIP;
10469 }
10470
10471 /*
10472 * param->num has the maximum number of entries for which there
10473 * is room in the freq_list provided by the caller.
10474 */
10475 freqs = nla_data(attr);
10476 max_num = nla_len(attr) / sizeof(u32);
10477 if (max_num > param->num)
10478 max_num = param->num;
10479 for (num = 0; num < max_num; num++)
10480 param->freq_list[num] = freqs[num];
10481 param->num = num;
10482
10483 return NL_SKIP;
10484 }
10485
10486
10487 static int nl80211_get_pref_freq_list(void *priv,
10488 enum wpa_driver_if_type if_type,
10489 unsigned int *num,
10490 unsigned int *freq_list)
10491 {
10492 struct i802_bss *bss = priv;
10493 struct wpa_driver_nl80211_data *drv = bss->drv;
10494 struct nl_msg *msg;
10495 int ret;
10496 unsigned int i;
10497 struct nlattr *params;
10498 struct nl80211_pcl param;
10499 enum qca_iface_type iface_type;
10500
10501 if (!drv->get_pref_freq_list)
10502 return -1;
10503
10504 switch (if_type) {
10505 case WPA_IF_STATION:
10506 iface_type = QCA_IFACE_TYPE_STA;
10507 break;
10508 case WPA_IF_AP_BSS:
10509 iface_type = QCA_IFACE_TYPE_AP;
10510 break;
10511 case WPA_IF_P2P_GO:
10512 iface_type = QCA_IFACE_TYPE_P2P_GO;
10513 break;
10514 case WPA_IF_P2P_CLIENT:
10515 iface_type = QCA_IFACE_TYPE_P2P_CLIENT;
10516 break;
10517 case WPA_IF_IBSS:
10518 iface_type = QCA_IFACE_TYPE_IBSS;
10519 break;
10520 case WPA_IF_TDLS:
10521 iface_type = QCA_IFACE_TYPE_TDLS;
10522 break;
10523 default:
10524 return -1;
10525 }
10526
10527 param.num = *num;
10528 param.freq_list = freq_list;
10529
10530 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
10531 nla_put_u32(msg, NL80211_ATTR_IFINDEX, drv->ifindex) ||
10532 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
10533 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
10534 QCA_NL80211_VENDOR_SUBCMD_GET_PREFERRED_FREQ_LIST) ||
10535 !(params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) ||
10536 nla_put_u32(msg,
10537 QCA_WLAN_VENDOR_ATTR_GET_PREFERRED_FREQ_LIST_IFACE_TYPE,
10538 iface_type)) {
10539 wpa_printf(MSG_ERROR,
10540 "%s: err in adding vendor_cmd and vendor_data",
10541 __func__);
10542 nlmsg_free(msg);
10543 return -1;
10544 }
10545 nla_nest_end(msg, params);
10546
10547 os_memset(freq_list, 0, *num * sizeof(freq_list[0]));
10548 ret = send_and_recv_msgs(drv, msg, preferred_freq_info_handler, &param);
10549 if (ret) {
10550 wpa_printf(MSG_ERROR,
10551 "%s: err in send_and_recv_msgs", __func__);
10552 return ret;
10553 }
10554
10555 *num = param.num;
10556
10557 for (i = 0; i < *num; i++) {
10558 wpa_printf(MSG_DEBUG, "nl80211: preferred_channel_list[%d]=%d",
10559 i, freq_list[i]);
10560 }
10561
10562 return 0;
10563 }
10564
10565
10566 static int nl80211_set_prob_oper_freq(void *priv, unsigned int freq)
10567 {
10568 struct i802_bss *bss = priv;
10569 struct wpa_driver_nl80211_data *drv = bss->drv;
10570 struct nl_msg *msg;
10571 int ret;
10572 struct nlattr *params;
10573
10574 if (!drv->set_prob_oper_freq)
10575 return -1;
10576
10577 wpa_printf(MSG_DEBUG,
10578 "nl80211: Set P2P probable operating freq %u for ifindex %d",
10579 freq, bss->ifindex);
10580
10581 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
10582 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
10583 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
10584 QCA_NL80211_VENDOR_SUBCMD_SET_PROBABLE_OPER_CHANNEL) ||
10585 !(params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) ||
10586 nla_put_u32(msg,
10587 QCA_WLAN_VENDOR_ATTR_PROBABLE_OPER_CHANNEL_IFACE_TYPE,
10588 QCA_IFACE_TYPE_P2P_CLIENT) ||
10589 nla_put_u32(msg,
10590 QCA_WLAN_VENDOR_ATTR_PROBABLE_OPER_CHANNEL_FREQ,
10591 freq)) {
10592 wpa_printf(MSG_ERROR,
10593 "%s: err in adding vendor_cmd and vendor_data",
10594 __func__);
10595 nlmsg_free(msg);
10596 return -1;
10597 }
10598 nla_nest_end(msg, params);
10599
10600 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
10601 msg = NULL;
10602 if (ret) {
10603 wpa_printf(MSG_ERROR, "%s: err in send_and_recv_msgs",
10604 __func__);
10605 return ret;
10606 }
10607 nlmsg_free(msg);
10608 return 0;
10609 }
10610
10611
10612 static int nl80211_p2p_lo_start(void *priv, unsigned int freq,
10613 unsigned int period, unsigned int interval,
10614 unsigned int count, const u8 *device_types,
10615 size_t dev_types_len,
10616 const u8 *ies, size_t ies_len)
10617 {
10618 struct i802_bss *bss = priv;
10619 struct wpa_driver_nl80211_data *drv = bss->drv;
10620 struct nl_msg *msg;
10621 struct nlattr *container;
10622 int ret;
10623
10624 wpa_printf(MSG_DEBUG,
10625 "nl80211: Start P2P Listen offload: freq=%u, period=%u, interval=%u, count=%u",
10626 freq, period, interval, count);
10627
10628 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_P2P_LISTEN_OFFLOAD))
10629 return -1;
10630
10631 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
10632 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
10633 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
10634 QCA_NL80211_VENDOR_SUBCMD_P2P_LISTEN_OFFLOAD_START))
10635 goto fail;
10636
10637 container = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
10638 if (!container)
10639 goto fail;
10640
10641 if (nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_CHANNEL,
10642 freq) ||
10643 nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_PERIOD,
10644 period) ||
10645 nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_INTERVAL,
10646 interval) ||
10647 nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_COUNT,
10648 count) ||
10649 nla_put(msg, QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_DEVICE_TYPES,
10650 dev_types_len, device_types) ||
10651 nla_put(msg, QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_VENDOR_IE,
10652 ies_len, ies))
10653 goto fail;
10654
10655 nla_nest_end(msg, container);
10656 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
10657 msg = NULL;
10658 if (ret) {
10659 wpa_printf(MSG_DEBUG,
10660 "nl80211: Failed to send P2P Listen offload vendor command");
10661 goto fail;
10662 }
10663
10664 return 0;
10665
10666 fail:
10667 nlmsg_free(msg);
10668 return -1;
10669 }
10670
10671
10672 static int nl80211_p2p_lo_stop(void *priv)
10673 {
10674 struct i802_bss *bss = priv;
10675 struct wpa_driver_nl80211_data *drv = bss->drv;
10676 struct nl_msg *msg;
10677
10678 wpa_printf(MSG_DEBUG, "nl80211: Stop P2P Listen offload");
10679
10680 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_P2P_LISTEN_OFFLOAD))
10681 return -1;
10682
10683 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
10684 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
10685 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
10686 QCA_NL80211_VENDOR_SUBCMD_P2P_LISTEN_OFFLOAD_STOP)) {
10687 nlmsg_free(msg);
10688 return -1;
10689 }
10690
10691 return send_and_recv_msgs(drv, msg, NULL, NULL);
10692 }
10693
10694
10695 static int nl80211_set_tdls_mode(void *priv, int tdls_external_control)
10696 {
10697 struct i802_bss *bss = priv;
10698 struct wpa_driver_nl80211_data *drv = bss->drv;
10699 struct nl_msg *msg;
10700 struct nlattr *params;
10701 int ret;
10702 u32 tdls_mode;
10703
10704 wpa_printf(MSG_DEBUG,
10705 "nl80211: Set TDKS mode: tdls_external_control=%d",
10706 tdls_external_control);
10707
10708 if (tdls_external_control == 1)
10709 tdls_mode = QCA_WLAN_VENDOR_TDLS_TRIGGER_MODE_IMPLICIT |
10710 QCA_WLAN_VENDOR_TDLS_TRIGGER_MODE_EXTERNAL;
10711 else
10712 tdls_mode = QCA_WLAN_VENDOR_TDLS_TRIGGER_MODE_EXPLICIT;
10713
10714 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
10715 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
10716 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
10717 QCA_NL80211_VENDOR_SUBCMD_CONFIGURE_TDLS))
10718 goto fail;
10719
10720 params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
10721 if (!params)
10722 goto fail;
10723
10724 if (nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_TDLS_CONFIG_TRIGGER_MODE,
10725 tdls_mode))
10726 goto fail;
10727
10728 nla_nest_end(msg, params);
10729
10730 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
10731 msg = NULL;
10732 if (ret) {
10733 wpa_printf(MSG_ERROR,
10734 "nl80211: Set TDLS mode failed: ret=%d (%s)",
10735 ret, strerror(-ret));
10736 goto fail;
10737 }
10738 return 0;
10739 fail:
10740 nlmsg_free(msg);
10741 return -1;
10742 }
10743
10744
10745 #ifdef CONFIG_MBO
10746
10747 static enum mbo_transition_reject_reason
10748 nl80211_mbo_reject_reason_mapping(enum qca_wlan_btm_candidate_status status)
10749 {
10750 switch (status) {
10751 case QCA_STATUS_REJECT_EXCESSIVE_FRAME_LOSS_EXPECTED:
10752 return MBO_TRANSITION_REJECT_REASON_FRAME_LOSS;
10753 case QCA_STATUS_REJECT_EXCESSIVE_DELAY_EXPECTED:
10754 return MBO_TRANSITION_REJECT_REASON_DELAY;
10755 case QCA_STATUS_REJECT_INSUFFICIENT_QOS_CAPACITY:
10756 return MBO_TRANSITION_REJECT_REASON_QOS_CAPACITY;
10757 case QCA_STATUS_REJECT_LOW_RSSI:
10758 return MBO_TRANSITION_REJECT_REASON_RSSI;
10759 case QCA_STATUS_REJECT_HIGH_INTERFERENCE:
10760 return MBO_TRANSITION_REJECT_REASON_INTERFERENCE;
10761 case QCA_STATUS_REJECT_UNKNOWN:
10762 default:
10763 return MBO_TRANSITION_REJECT_REASON_UNSPECIFIED;
10764 }
10765 }
10766
10767
10768 static void nl80211_parse_btm_candidate_info(struct candidate_list *candidate,
10769 struct nlattr *tb[], int num)
10770 {
10771 enum qca_wlan_btm_candidate_status status;
10772 char buf[50];
10773
10774 os_memcpy(candidate->bssid,
10775 nla_data(tb[QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO_BSSID]),
10776 ETH_ALEN);
10777
10778 status = nla_get_u32(
10779 tb[QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO_STATUS]);
10780 candidate->is_accept = status == QCA_STATUS_ACCEPT;
10781 candidate->reject_reason = nl80211_mbo_reject_reason_mapping(status);
10782
10783 if (candidate->is_accept)
10784 os_snprintf(buf, sizeof(buf), "Accepted");
10785 else
10786 os_snprintf(buf, sizeof(buf),
10787 "Rejected, Reject_reason: %d",
10788 candidate->reject_reason);
10789 wpa_printf(MSG_DEBUG, "nl80211: BSSID[%d]: " MACSTR " %s",
10790 num, MAC2STR(candidate->bssid), buf);
10791 }
10792
10793
10794 static int
10795 nl80211_get_bss_transition_status_handler(struct nl_msg *msg, void *arg)
10796 {
10797 struct wpa_bss_candidate_info *info = arg;
10798 struct candidate_list *candidate = info->candidates;
10799 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
10800 struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_MAX + 1];
10801 struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO_MAX + 1];
10802 static struct nla_policy policy[
10803 QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO_MAX + 1] = {
10804 [QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO_BSSID] = {
10805 .minlen = ETH_ALEN
10806 },
10807 [QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO_STATUS] = {
10808 .type = NLA_U32,
10809 },
10810 };
10811 struct nlattr *attr;
10812 int rem;
10813 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
10814 u8 num;
10815
10816 num = info->num; /* number of candidates sent to driver */
10817 info->num = 0;
10818 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
10819 genlmsg_attrlen(gnlh, 0), NULL);
10820
10821 if (!tb_msg[NL80211_ATTR_VENDOR_DATA] ||
10822 nla_parse_nested(tb_vendor, QCA_WLAN_VENDOR_ATTR_MAX,
10823 tb_msg[NL80211_ATTR_VENDOR_DATA], NULL) ||
10824 !tb_vendor[QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO])
10825 return NL_SKIP;
10826
10827 wpa_printf(MSG_DEBUG,
10828 "nl80211: WNM Candidate list received from driver");
10829 nla_for_each_nested(attr,
10830 tb_vendor[QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO],
10831 rem) {
10832 if (info->num >= num ||
10833 nla_parse_nested(
10834 tb, QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO_MAX,
10835 attr, policy) ||
10836 !tb[QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO_BSSID] ||
10837 !tb[QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO_STATUS])
10838 break;
10839
10840 nl80211_parse_btm_candidate_info(candidate, tb, info->num);
10841
10842 candidate++;
10843 info->num++;
10844 }
10845
10846 return NL_SKIP;
10847 }
10848
10849
10850 static struct wpa_bss_candidate_info *
10851 nl80211_get_bss_transition_status(void *priv, struct wpa_bss_trans_info *params)
10852 {
10853 struct i802_bss *bss = priv;
10854 struct wpa_driver_nl80211_data *drv = bss->drv;
10855 struct nl_msg *msg;
10856 struct nlattr *attr, *attr1, *attr2;
10857 struct wpa_bss_candidate_info *info;
10858 u8 i;
10859 int ret;
10860 u8 *pos;
10861
10862 if (!drv->fetch_bss_trans_status)
10863 return NULL;
10864
10865 info = os_zalloc(sizeof(*info));
10866 if (!info)
10867 return NULL;
10868 /* Allocate memory for number of candidates sent to driver */
10869 info->candidates = os_calloc(params->n_candidates,
10870 sizeof(*info->candidates));
10871 if (!info->candidates) {
10872 os_free(info);
10873 return NULL;
10874 }
10875
10876 /* Copy the number of candidates being sent to driver. This is used in
10877 * nl80211_get_bss_transition_status_handler() to limit the number of
10878 * candidates that can be populated in info->candidates and will be
10879 * later overwritten with the actual number of candidates received from
10880 * the driver.
10881 */
10882 info->num = params->n_candidates;
10883
10884 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
10885 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
10886 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
10887 QCA_NL80211_VENDOR_SUBCMD_FETCH_BSS_TRANSITION_STATUS))
10888 goto fail;
10889
10890 attr = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
10891 if (!attr)
10892 goto fail;
10893
10894 if (nla_put_u8(msg, QCA_WLAN_VENDOR_ATTR_BTM_MBO_TRANSITION_REASON,
10895 params->mbo_transition_reason))
10896 goto fail;
10897
10898 attr1 = nla_nest_start(msg, QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO);
10899 if (!attr1)
10900 goto fail;
10901
10902 wpa_printf(MSG_DEBUG,
10903 "nl80211: WNM Candidate list info sending to driver: mbo_transition_reason: %d n_candidates: %d",
10904 params->mbo_transition_reason, params->n_candidates);
10905 pos = params->bssid;
10906 for (i = 0; i < params->n_candidates; i++) {
10907 wpa_printf(MSG_DEBUG, "nl80211: BSSID[%d]: " MACSTR, i,
10908 MAC2STR(pos));
10909 attr2 = nla_nest_start(msg, i);
10910 if (!attr2 ||
10911 nla_put(msg, QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO_BSSID,
10912 ETH_ALEN, pos))
10913 goto fail;
10914 pos += ETH_ALEN;
10915 nla_nest_end(msg, attr2);
10916 }
10917
10918 nla_nest_end(msg, attr1);
10919 nla_nest_end(msg, attr);
10920
10921 ret = send_and_recv_msgs(drv, msg,
10922 nl80211_get_bss_transition_status_handler,
10923 info);
10924 msg = NULL;
10925 if (ret) {
10926 wpa_printf(MSG_ERROR,
10927 "nl80211: WNM Get BSS transition status failed: ret=%d (%s)",
10928 ret, strerror(-ret));
10929 goto fail;
10930 }
10931 return info;
10932
10933 fail:
10934 nlmsg_free(msg);
10935 os_free(info->candidates);
10936 os_free(info);
10937 return NULL;
10938 }
10939
10940
10941 /**
10942 * nl80211_ignore_assoc_disallow - Configure driver to ignore assoc_disallow
10943 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
10944 * @ignore_assoc_disallow: 0 to not ignore, 1 to ignore
10945 * Returns: 0 on success, -1 on failure
10946 */
10947 static int nl80211_ignore_assoc_disallow(void *priv, int ignore_disallow)
10948 {
10949 struct i802_bss *bss = priv;
10950 struct wpa_driver_nl80211_data *drv = bss->drv;
10951 struct nl_msg *msg;
10952 struct nlattr *attr;
10953 int ret = -1;
10954
10955 if (!drv->set_wifi_conf_vendor_cmd_avail)
10956 return -1;
10957
10958 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
10959 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
10960 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
10961 QCA_NL80211_VENDOR_SUBCMD_SET_WIFI_CONFIGURATION))
10962 goto fail;
10963
10964 attr = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
10965 if (!attr)
10966 goto fail;
10967
10968 wpa_printf(MSG_DEBUG, "nl80211: Set ignore_assoc_disallow %d",
10969 ignore_disallow);
10970 if (nla_put_u8(msg, QCA_WLAN_VENDOR_ATTR_CONFIG_IGNORE_ASSOC_DISALLOWED,
10971 ignore_disallow))
10972 goto fail;
10973
10974 nla_nest_end(msg, attr);
10975
10976 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
10977 msg = NULL;
10978 if (ret) {
10979 wpa_printf(MSG_ERROR,
10980 "nl80211: Set ignore_assoc_disallow failed: ret=%d (%s)",
10981 ret, strerror(-ret));
10982 goto fail;
10983 }
10984
10985 fail:
10986 nlmsg_free(msg);
10987 return ret;
10988 }
10989
10990 #endif /* CONFIG_MBO */
10991
10992 #endif /* CONFIG_DRIVER_NL80211_QCA */
10993
10994
10995 static int nl80211_write_to_file(const char *name, unsigned int val)
10996 {
10997 int fd, len;
10998 char tmp[128];
10999 int ret = 0;
11000
11001 fd = open(name, O_RDWR);
11002 if (fd < 0) {
11003 int level;
11004 /*
11005 * Flags may not exist on older kernels, or while we're tearing
11006 * down a disappearing device.
11007 */
11008 if (errno == ENOENT) {
11009 ret = 0;
11010 level = MSG_DEBUG;
11011 } else {
11012 ret = -1;
11013 level = MSG_ERROR;
11014 }
11015 wpa_printf(level, "nl80211: Failed to open %s: %s",
11016 name, strerror(errno));
11017 return ret;
11018 }
11019
11020 len = os_snprintf(tmp, sizeof(tmp), "%u\n", val);
11021 len = write(fd, tmp, len);
11022 if (len < 0) {
11023 ret = -1;
11024 wpa_printf(MSG_ERROR, "nl80211: Failed to write to %s: %s",
11025 name, strerror(errno));
11026 }
11027 close(fd);
11028
11029 return ret;
11030 }
11031
11032
11033 static int nl80211_configure_data_frame_filters(void *priv, u32 filter_flags)
11034 {
11035 struct i802_bss *bss = priv;
11036 char path[128];
11037 int ret;
11038
11039 wpa_printf(MSG_DEBUG, "nl80211: Data frame filter flags=0x%x",
11040 filter_flags);
11041
11042 /* Configure filtering of unicast frame encrypted using GTK */
11043 ret = os_snprintf(path, sizeof(path),
11044 "/proc/sys/net/ipv4/conf/%s/drop_unicast_in_l2_multicast",
11045 bss->ifname);
11046 if (os_snprintf_error(sizeof(path), ret))
11047 return -1;
11048
11049 ret = nl80211_write_to_file(path,
11050 !!(filter_flags &
11051 WPA_DATA_FRAME_FILTER_FLAG_GTK));
11052 if (ret) {
11053 wpa_printf(MSG_ERROR,
11054 "nl80211: Failed to set IPv4 unicast in multicast filter");
11055 return ret;
11056 }
11057
11058 os_snprintf(path, sizeof(path),
11059 "/proc/sys/net/ipv6/conf/%s/drop_unicast_in_l2_multicast",
11060 bss->ifname);
11061 ret = nl80211_write_to_file(path,
11062 !!(filter_flags &
11063 WPA_DATA_FRAME_FILTER_FLAG_GTK));
11064
11065 if (ret) {
11066 wpa_printf(MSG_ERROR,
11067 "nl80211: Failed to set IPv6 unicast in multicast filter");
11068 return ret;
11069 }
11070
11071 /* Configure filtering of unicast frame encrypted using GTK */
11072 os_snprintf(path, sizeof(path),
11073 "/proc/sys/net/ipv4/conf/%s/drop_gratuitous_arp",
11074 bss->ifname);
11075 ret = nl80211_write_to_file(path,
11076 !!(filter_flags &
11077 WPA_DATA_FRAME_FILTER_FLAG_ARP));
11078 if (ret) {
11079 wpa_printf(MSG_ERROR,
11080 "nl80211: Failed set gratuitous ARP filter");
11081 return ret;
11082 }
11083
11084 /* Configure filtering of IPv6 NA frames */
11085 os_snprintf(path, sizeof(path),
11086 "/proc/sys/net/ipv6/conf/%s/drop_unsolicited_na",
11087 bss->ifname);
11088 ret = nl80211_write_to_file(path,
11089 !!(filter_flags &
11090 WPA_DATA_FRAME_FILTER_FLAG_NA));
11091 if (ret) {
11092 wpa_printf(MSG_ERROR,
11093 "nl80211: Failed to set unsolicited NA filter");
11094 return ret;
11095 }
11096
11097 return 0;
11098 }
11099
11100
11101 static int nl80211_get_ext_capab(void *priv, enum wpa_driver_if_type type,
11102 const u8 **ext_capa, const u8 **ext_capa_mask,
11103 unsigned int *ext_capa_len)
11104 {
11105 struct i802_bss *bss = priv;
11106 struct wpa_driver_nl80211_data *drv = bss->drv;
11107 enum nl80211_iftype nlmode;
11108 unsigned int i;
11109
11110 if (!ext_capa || !ext_capa_mask || !ext_capa_len)
11111 return -1;
11112
11113 nlmode = wpa_driver_nl80211_if_type(type);
11114
11115 /* By default, use the per-radio values */
11116 *ext_capa = drv->extended_capa;
11117 *ext_capa_mask = drv->extended_capa_mask;
11118 *ext_capa_len = drv->extended_capa_len;
11119
11120 /* Replace the default value if a per-interface type value exists */
11121 for (i = 0; i < drv->num_iface_ext_capa; i++) {
11122 if (nlmode == drv->iface_ext_capa[i].iftype) {
11123 *ext_capa = drv->iface_ext_capa[i].ext_capa;
11124 *ext_capa_mask = drv->iface_ext_capa[i].ext_capa_mask;
11125 *ext_capa_len = drv->iface_ext_capa[i].ext_capa_len;
11126 break;
11127 }
11128 }
11129
11130 return 0;
11131 }
11132
11133
11134 static int nl80211_update_connection_params(
11135 void *priv, struct wpa_driver_associate_params *params,
11136 enum wpa_drv_update_connect_params_mask mask)
11137 {
11138 struct i802_bss *bss = priv;
11139 struct wpa_driver_nl80211_data *drv = bss->drv;
11140 struct nl_msg *msg;
11141 int ret = -1;
11142 enum nl80211_auth_type type;
11143
11144 /* Update Connection Params is intended for drivers that implement
11145 * internal SME and expect these updated connection params from
11146 * wpa_supplicant. Do not send this request for the drivers using
11147 * SME from wpa_supplicant.
11148 */
11149 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME)
11150 return 0;
11151
11152 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_UPDATE_CONNECT_PARAMS);
11153 if (!msg)
11154 goto fail;
11155
11156 wpa_printf(MSG_DEBUG, "nl80211: Update connection params (ifindex=%d)",
11157 drv->ifindex);
11158
11159 if ((mask & WPA_DRV_UPDATE_ASSOC_IES) && params->wpa_ie) {
11160 if (nla_put(msg, NL80211_ATTR_IE, params->wpa_ie_len,
11161 params->wpa_ie))
11162 goto fail;
11163 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie,
11164 params->wpa_ie_len);
11165 }
11166
11167 if (mask & WPA_DRV_UPDATE_AUTH_TYPE) {
11168 type = get_nl_auth_type(params->auth_alg);
11169 if (type == NL80211_AUTHTYPE_MAX ||
11170 nla_put_u32(msg, NL80211_ATTR_AUTH_TYPE, type))
11171 goto fail;
11172 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
11173 }
11174
11175 if ((mask & WPA_DRV_UPDATE_FILS_ERP_INFO) &&
11176 nl80211_put_fils_connect_params(drv, params, msg))
11177 goto fail;
11178
11179 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
11180 msg = NULL;
11181 if (ret)
11182 wpa_dbg(drv->ctx, MSG_DEBUG,
11183 "nl80211: Update connect params command failed: ret=%d (%s)",
11184 ret, strerror(-ret));
11185
11186 fail:
11187 nlmsg_free(msg);
11188 return ret;
11189 }
11190
11191
11192 static int nl80211_send_external_auth_status(void *priv,
11193 struct external_auth *params)
11194 {
11195 struct i802_bss *bss = priv;
11196 struct wpa_driver_nl80211_data *drv = bss->drv;
11197 struct nl_msg *msg = NULL;
11198 int ret = -1;
11199
11200 /* External auth command/status is intended for drivers that implement
11201 * internal SME but want to offload authentication processing (e.g.,
11202 * SAE) to hostapd/wpa_supplicant. Do not send the status to drivers
11203 * which do not support AP SME or use wpa_supplicant/hostapd SME.
11204 */
11205 if ((is_ap_interface(drv->nlmode) && !bss->drv->device_ap_sme) ||
11206 (drv->capa.flags & WPA_DRIVER_FLAGS_SME))
11207 return -1;
11208
11209 wpa_dbg(drv->ctx, MSG_DEBUG,
11210 "nl80211: External auth status: %u", params->status);
11211
11212 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_EXTERNAL_AUTH);
11213 if (!msg ||
11214 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, params->status) ||
11215 (params->ssid && params->ssid_len &&
11216 nla_put(msg, NL80211_ATTR_SSID, params->ssid_len, params->ssid)) ||
11217 (params->pmkid &&
11218 nla_put(msg, NL80211_ATTR_PMKID, PMKID_LEN, params->pmkid)) ||
11219 (params->bssid &&
11220 nla_put(msg, NL80211_ATTR_BSSID, ETH_ALEN, params->bssid)))
11221 goto fail;
11222 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
11223 msg = NULL;
11224 if (ret) {
11225 wpa_printf(MSG_DEBUG,
11226 "nl80211: External Auth status update failed: ret=%d (%s)",
11227 ret, strerror(-ret));
11228 goto fail;
11229 }
11230 fail:
11231 nlmsg_free(msg);
11232 return ret;
11233 }
11234
11235
11236 static int nl80211_set_4addr_mode(void *priv, const char *bridge_ifname,
11237 int val)
11238 {
11239 struct i802_bss *bss = priv;
11240 struct wpa_driver_nl80211_data *drv = bss->drv;
11241 struct nl_msg *msg;
11242 int ret = -ENOBUFS;
11243
11244 wpa_printf(MSG_DEBUG, "nl80211: %s 4addr mode (bridge_ifname: %s)",
11245 val ? "Enable" : "Disable", bridge_ifname);
11246
11247 msg = nl80211_cmd_msg(drv->first_bss, 0, NL80211_CMD_SET_INTERFACE);
11248 if (!msg || nla_put_u8(msg, NL80211_ATTR_4ADDR, val))
11249 goto fail;
11250
11251 if (bridge_ifname[0] && bss->added_if_into_bridge && !val) {
11252 if (linux_br_del_if(drv->global->ioctl_sock,
11253 bridge_ifname, bss->ifname)) {
11254 wpa_printf(MSG_ERROR,
11255 "nl80211: Failed to remove interface %s from bridge %s",
11256 bss->ifname, bridge_ifname);
11257 return -1;
11258 }
11259 bss->added_if_into_bridge = 0;
11260 }
11261
11262 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
11263 msg = NULL;
11264 if (!ret) {
11265 if (bridge_ifname[0] && val &&
11266 i802_check_bridge(drv, bss, bridge_ifname, bss->ifname) < 0)
11267 return -1;
11268 return 0;
11269 }
11270
11271 fail:
11272 nlmsg_free(msg);
11273 wpa_printf(MSG_ERROR, "nl80211: Failed to enable/disable 4addr");
11274
11275 return ret;
11276 }
11277
11278
11279 const struct wpa_driver_ops wpa_driver_nl80211_ops = {
11280 .name = "nl80211",
11281 .desc = "Linux nl80211/cfg80211",
11282 .get_bssid = wpa_driver_nl80211_get_bssid,
11283 .get_ssid = wpa_driver_nl80211_get_ssid,
11284 .set_key = driver_nl80211_set_key,
11285 .scan2 = driver_nl80211_scan2,
11286 .sched_scan = wpa_driver_nl80211_sched_scan,
11287 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan,
11288 .get_scan_results2 = wpa_driver_nl80211_get_scan_results,
11289 .abort_scan = wpa_driver_nl80211_abort_scan,
11290 .deauthenticate = driver_nl80211_deauthenticate,
11291 .authenticate = driver_nl80211_authenticate,
11292 .associate = wpa_driver_nl80211_associate,
11293 .global_init = nl80211_global_init,
11294 .global_deinit = nl80211_global_deinit,
11295 .init2 = wpa_driver_nl80211_init,
11296 .deinit = driver_nl80211_deinit,
11297 .get_capa = wpa_driver_nl80211_get_capa,
11298 .set_operstate = wpa_driver_nl80211_set_operstate,
11299 .set_supp_port = wpa_driver_nl80211_set_supp_port,
11300 .set_country = wpa_driver_nl80211_set_country,
11301 .get_country = wpa_driver_nl80211_get_country,
11302 .set_ap = wpa_driver_nl80211_set_ap,
11303 .set_acl = wpa_driver_nl80211_set_acl,
11304 .if_add = wpa_driver_nl80211_if_add,
11305 .if_remove = driver_nl80211_if_remove,
11306 .send_mlme = driver_nl80211_send_mlme,
11307 .get_hw_feature_data = nl80211_get_hw_feature_data,
11308 .sta_add = wpa_driver_nl80211_sta_add,
11309 .sta_remove = driver_nl80211_sta_remove,
11310 .tx_control_port = nl80211_tx_control_port,
11311 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol,
11312 .sta_set_flags = wpa_driver_nl80211_sta_set_flags,
11313 .sta_set_airtime_weight = driver_nl80211_sta_set_airtime_weight,
11314 .hapd_init = i802_init,
11315 .hapd_deinit = i802_deinit,
11316 .set_wds_sta = i802_set_wds_sta,
11317 .get_seqnum = i802_get_seqnum,
11318 .flush = i802_flush,
11319 .get_inact_sec = i802_get_inact_sec,
11320 .sta_clear_stats = i802_sta_clear_stats,
11321 .set_rts = i802_set_rts,
11322 .set_frag = i802_set_frag,
11323 .set_tx_queue_params = i802_set_tx_queue_params,
11324 .set_sta_vlan = driver_nl80211_set_sta_vlan,
11325 .sta_deauth = i802_sta_deauth,
11326 .sta_disassoc = i802_sta_disassoc,
11327 .read_sta_data = driver_nl80211_read_sta_data,
11328 .set_freq = i802_set_freq,
11329 .send_action = driver_nl80211_send_action,
11330 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait,
11331 .remain_on_channel = wpa_driver_nl80211_remain_on_channel,
11332 .cancel_remain_on_channel =
11333 wpa_driver_nl80211_cancel_remain_on_channel,
11334 .probe_req_report = driver_nl80211_probe_req_report,
11335 .deinit_ap = wpa_driver_nl80211_deinit_ap,
11336 .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli,
11337 .resume = wpa_driver_nl80211_resume,
11338 .signal_monitor = nl80211_signal_monitor,
11339 .signal_poll = nl80211_signal_poll,
11340 .channel_info = nl80211_channel_info,
11341 .set_param = nl80211_set_param,
11342 .get_radio_name = nl80211_get_radio_name,
11343 .add_pmkid = nl80211_add_pmkid,
11344 .remove_pmkid = nl80211_remove_pmkid,
11345 .flush_pmkid = nl80211_flush_pmkid,
11346 .set_rekey_info = nl80211_set_rekey_info,
11347 .poll_client = nl80211_poll_client,
11348 .set_p2p_powersave = nl80211_set_p2p_powersave,
11349 .start_dfs_cac = nl80211_start_radar_detection,
11350 .stop_ap = wpa_driver_nl80211_stop_ap,
11351 #ifdef CONFIG_TDLS
11352 .send_tdls_mgmt = nl80211_send_tdls_mgmt,
11353 .tdls_oper = nl80211_tdls_oper,
11354 .tdls_enable_channel_switch = nl80211_tdls_enable_channel_switch,
11355 .tdls_disable_channel_switch = nl80211_tdls_disable_channel_switch,
11356 #endif /* CONFIG_TDLS */
11357 .update_ft_ies = wpa_driver_nl80211_update_ft_ies,
11358 .update_dh_ie = nl80211_update_dh_ie,
11359 .get_mac_addr = wpa_driver_nl80211_get_macaddr,
11360 .get_survey = wpa_driver_nl80211_get_survey,
11361 .status = wpa_driver_nl80211_status,
11362 .switch_channel = nl80211_switch_channel,
11363 #ifdef ANDROID_P2P
11364 .set_noa = wpa_driver_set_p2p_noa,
11365 .get_noa = wpa_driver_get_p2p_noa,
11366 .set_ap_wps_ie = wpa_driver_set_ap_wps_p2p_ie,
11367 #endif /* ANDROID_P2P */
11368 #ifdef ANDROID
11369 #ifndef ANDROID_LIB_STUB
11370 .driver_cmd = wpa_driver_nl80211_driver_cmd,
11371 #endif /* !ANDROID_LIB_STUB */
11372 #endif /* ANDROID */
11373 .vendor_cmd = nl80211_vendor_cmd,
11374 .set_qos_map = nl80211_set_qos_map,
11375 .get_wowlan = nl80211_get_wowlan,
11376 .set_wowlan = nl80211_set_wowlan,
11377 .set_mac_addr = nl80211_set_mac_addr,
11378 #ifdef CONFIG_MESH
11379 .init_mesh = wpa_driver_nl80211_init_mesh,
11380 .join_mesh = wpa_driver_nl80211_join_mesh,
11381 .leave_mesh = wpa_driver_nl80211_leave_mesh,
11382 .probe_mesh_link = nl80211_probe_mesh_link,
11383 #endif /* CONFIG_MESH */
11384 .br_add_ip_neigh = wpa_driver_br_add_ip_neigh,
11385 .br_delete_ip_neigh = wpa_driver_br_delete_ip_neigh,
11386 .br_port_set_attr = wpa_driver_br_port_set_attr,
11387 .br_set_net_param = wpa_driver_br_set_net_param,
11388 .add_tx_ts = nl80211_add_ts,
11389 .del_tx_ts = nl80211_del_ts,
11390 .get_ifindex = nl80211_get_ifindex,
11391 #ifdef CONFIG_DRIVER_NL80211_QCA
11392 .roaming = nl80211_roaming,
11393 .disable_fils = nl80211_disable_fils,
11394 .do_acs = wpa_driver_do_acs,
11395 .set_band = nl80211_set_band,
11396 .get_pref_freq_list = nl80211_get_pref_freq_list,
11397 .set_prob_oper_freq = nl80211_set_prob_oper_freq,
11398 .p2p_lo_start = nl80211_p2p_lo_start,
11399 .p2p_lo_stop = nl80211_p2p_lo_stop,
11400 .set_default_scan_ies = nl80211_set_default_scan_ies,
11401 .set_tdls_mode = nl80211_set_tdls_mode,
11402 #ifdef CONFIG_MBO
11403 .get_bss_transition_status = nl80211_get_bss_transition_status,
11404 .ignore_assoc_disallow = nl80211_ignore_assoc_disallow,
11405 #endif /* CONFIG_MBO */
11406 .set_bssid_blacklist = nl80211_set_bssid_blacklist,
11407 .add_sta_node = nl80211_add_sta_node,
11408 #endif /* CONFIG_DRIVER_NL80211_QCA */
11409 .configure_data_frame_filters = nl80211_configure_data_frame_filters,
11410 .get_ext_capab = nl80211_get_ext_capab,
11411 .update_connect_params = nl80211_update_connection_params,
11412 .send_external_auth_status = nl80211_send_external_auth_status,
11413 .set_4addr_mode = nl80211_set_4addr_mode,
11414 };
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