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nl80211: Add support for EDMG channels
[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 #ifndef CONFIG_LIBNL20
70 /*
71 * libnl 1.1 has a bug, it tries to allocate socket numbers densely
72 * but when you free a socket again it will mess up its bitmap and
73 * and use the wrong number the next time it needs a socket ID.
74 * Therefore, we wrap the handle alloc/destroy and add our own pid
75 * accounting.
76 */
77 static uint32_t port_bitmap[32] = { 0 };
78
79 static struct nl_handle *nl80211_handle_alloc(void *cb)
80 {
81 struct nl_handle *handle;
82 uint32_t pid = getpid() & 0x3FFFFF;
83 int i;
84
85 handle = nl_handle_alloc_cb(cb);
86
87 for (i = 0; i < 1024; i++) {
88 if (port_bitmap[i / 32] & (1 << (i % 32)))
89 continue;
90 port_bitmap[i / 32] |= 1 << (i % 32);
91 pid += i << 22;
92 break;
93 }
94
95 nl_socket_set_local_port(handle, pid);
96
97 return handle;
98 }
99
100 static void nl80211_handle_destroy(struct nl_handle *handle)
101 {
102 uint32_t port = nl_socket_get_local_port(handle);
103
104 port >>= 22;
105 port_bitmap[port / 32] &= ~(1 << (port % 32));
106
107 nl_handle_destroy(handle);
108 }
109 #endif /* CONFIG_LIBNL20 */
110
111
112 #ifdef ANDROID
113 /* system/core/libnl_2 does not include nl_socket_set_nonblocking() */
114 #undef nl_socket_set_nonblocking
115 #define nl_socket_set_nonblocking(h) android_nl_socket_set_nonblocking(h)
116
117 #endif /* ANDROID */
118
119
120 static struct nl_handle * nl_create_handle(struct nl_cb *cb, const char *dbg)
121 {
122 struct nl_handle *handle;
123
124 handle = nl80211_handle_alloc(cb);
125 if (handle == NULL) {
126 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
127 "callbacks (%s)", dbg);
128 return NULL;
129 }
130
131 if (genl_connect(handle)) {
132 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
133 "netlink (%s)", dbg);
134 nl80211_handle_destroy(handle);
135 return NULL;
136 }
137
138 return handle;
139 }
140
141
142 static void nl_destroy_handles(struct nl_handle **handle)
143 {
144 if (*handle == NULL)
145 return;
146 nl80211_handle_destroy(*handle);
147 *handle = NULL;
148 }
149
150
151 #if __WORDSIZE == 64
152 #define ELOOP_SOCKET_INVALID (intptr_t) 0x8888888888888889ULL
153 #else
154 #define ELOOP_SOCKET_INVALID (intptr_t) 0x88888889ULL
155 #endif
156
157 static void nl80211_register_eloop_read(struct nl_handle **handle,
158 eloop_sock_handler handler,
159 void *eloop_data, int persist)
160 {
161 #ifdef CONFIG_LIBNL20
162 /*
163 * libnl uses a pretty small buffer (32 kB that gets converted to 64 kB)
164 * by default. It is possible to hit that limit in some cases where
165 * operations are blocked, e.g., with a burst of Deauthentication frames
166 * to hostapd and STA entry deletion. Try to increase the buffer to make
167 * this less likely to occur.
168 */
169 if (nl_socket_set_buffer_size(*handle, 262144, 0) < 0) {
170 wpa_printf(MSG_DEBUG,
171 "nl80211: Could not set nl_socket RX buffer size: %s",
172 strerror(errno));
173 /* continue anyway with the default (smaller) buffer */
174 }
175 #endif /* CONFIG_LIBNL20 */
176
177 nl_socket_set_nonblocking(*handle);
178 eloop_register_read_sock(nl_socket_get_fd(*handle), handler,
179 eloop_data, *handle);
180 if (!persist)
181 *handle = (void *) (((intptr_t) *handle) ^
182 ELOOP_SOCKET_INVALID);
183 }
184
185
186 static void nl80211_destroy_eloop_handle(struct nl_handle **handle, int persist)
187 {
188 if (!persist)
189 *handle = (void *) (((intptr_t) *handle) ^
190 ELOOP_SOCKET_INVALID);
191 eloop_unregister_read_sock(nl_socket_get_fd(*handle));
192 nl_destroy_handles(handle);
193 }
194
195
196 static void nl80211_global_deinit(void *priv);
197 static void nl80211_check_global(struct nl80211_global *global);
198
199 static void wpa_driver_nl80211_deinit(struct i802_bss *bss);
200 static int wpa_driver_nl80211_set_mode_ibss(struct i802_bss *bss,
201 struct hostapd_freq_params *freq);
202
203 static int
204 wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv,
205 const u8 *set_addr, int first,
206 const char *driver_params);
207 static int nl80211_send_frame_cmd(struct i802_bss *bss,
208 unsigned int freq, unsigned int wait,
209 const u8 *buf, size_t buf_len, u64 *cookie,
210 int no_cck, int no_ack, int offchanok,
211 const u16 *csa_offs, size_t csa_offs_len);
212 static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss,
213 int report);
214
215 #define IFIDX_ANY -1
216
217 static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx,
218 int ifidx_reason);
219 static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx,
220 int ifidx_reason);
221 static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx,
222 int ifidx_reason);
223
224 static int nl80211_set_channel(struct i802_bss *bss,
225 struct hostapd_freq_params *freq, int set_chan);
226 static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
227 int ifindex, int disabled);
228
229 static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv,
230 int reset_mode);
231
232 static int i802_set_iface_flags(struct i802_bss *bss, int up);
233 static int nl80211_set_param(void *priv, const char *param);
234 #ifdef CONFIG_MESH
235 static int nl80211_put_mesh_config(struct nl_msg *msg,
236 struct wpa_driver_mesh_bss_params *params);
237 #endif /* CONFIG_MESH */
238 static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
239 u16 reason);
240
241
242 /* Converts nl80211_chan_width to a common format */
243 enum chan_width convert2width(int width)
244 {
245 switch (width) {
246 case NL80211_CHAN_WIDTH_20_NOHT:
247 return CHAN_WIDTH_20_NOHT;
248 case NL80211_CHAN_WIDTH_20:
249 return CHAN_WIDTH_20;
250 case NL80211_CHAN_WIDTH_40:
251 return CHAN_WIDTH_40;
252 case NL80211_CHAN_WIDTH_80:
253 return CHAN_WIDTH_80;
254 case NL80211_CHAN_WIDTH_80P80:
255 return CHAN_WIDTH_80P80;
256 case NL80211_CHAN_WIDTH_160:
257 return CHAN_WIDTH_160;
258 }
259 return CHAN_WIDTH_UNKNOWN;
260 }
261
262
263 int is_ap_interface(enum nl80211_iftype nlmode)
264 {
265 return nlmode == NL80211_IFTYPE_AP ||
266 nlmode == NL80211_IFTYPE_P2P_GO;
267 }
268
269
270 int is_sta_interface(enum nl80211_iftype nlmode)
271 {
272 return nlmode == NL80211_IFTYPE_STATION ||
273 nlmode == NL80211_IFTYPE_P2P_CLIENT;
274 }
275
276
277 static int is_p2p_net_interface(enum nl80211_iftype nlmode)
278 {
279 return nlmode == NL80211_IFTYPE_P2P_CLIENT ||
280 nlmode == NL80211_IFTYPE_P2P_GO;
281 }
282
283
284 struct i802_bss * get_bss_ifindex(struct wpa_driver_nl80211_data *drv,
285 int ifindex)
286 {
287 struct i802_bss *bss;
288
289 for (bss = drv->first_bss; bss; bss = bss->next) {
290 if (bss->ifindex == ifindex)
291 return bss;
292 }
293
294 return NULL;
295 }
296
297
298 static int is_mesh_interface(enum nl80211_iftype nlmode)
299 {
300 return nlmode == NL80211_IFTYPE_MESH_POINT;
301 }
302
303
304 void nl80211_mark_disconnected(struct wpa_driver_nl80211_data *drv)
305 {
306 if (drv->associated)
307 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN);
308 drv->associated = 0;
309 os_memset(drv->bssid, 0, ETH_ALEN);
310 drv->first_bss->freq = 0;
311 }
312
313
314 /* nl80211 code */
315 static int ack_handler(struct nl_msg *msg, void *arg)
316 {
317 int *err = arg;
318 *err = 0;
319 return NL_STOP;
320 }
321
322 static int finish_handler(struct nl_msg *msg, void *arg)
323 {
324 int *ret = arg;
325 *ret = 0;
326 return NL_SKIP;
327 }
328
329 static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err,
330 void *arg)
331 {
332 struct nlmsghdr *nlh = (struct nlmsghdr *) err - 1;
333 int len = nlh->nlmsg_len;
334 struct nlattr *attrs;
335 struct nlattr *tb[NLMSGERR_ATTR_MAX + 1];
336 int *ret = arg;
337 int ack_len = sizeof(*nlh) + sizeof(int) + sizeof(*nlh);
338
339 *ret = err->error;
340
341 if (!(nlh->nlmsg_flags & NLM_F_ACK_TLVS))
342 return NL_SKIP;
343
344 if (!(nlh->nlmsg_flags & NLM_F_CAPPED))
345 ack_len += err->msg.nlmsg_len - sizeof(*nlh);
346
347 if (len <= ack_len)
348 return NL_STOP;
349
350 attrs = (void *) ((unsigned char *) nlh + ack_len);
351 len -= ack_len;
352
353 nla_parse(tb, NLMSGERR_ATTR_MAX, attrs, len, NULL);
354 if (tb[NLMSGERR_ATTR_MSG]) {
355 len = strnlen((char *) nla_data(tb[NLMSGERR_ATTR_MSG]),
356 nla_len(tb[NLMSGERR_ATTR_MSG]));
357 wpa_printf(MSG_ERROR, "nl80211: kernel reports: %*s",
358 len, (char *) nla_data(tb[NLMSGERR_ATTR_MSG]));
359 }
360
361 return NL_SKIP;
362 }
363
364
365 static int no_seq_check(struct nl_msg *msg, void *arg)
366 {
367 return NL_OK;
368 }
369
370
371 static void nl80211_nlmsg_clear(struct nl_msg *msg)
372 {
373 /*
374 * Clear nlmsg data, e.g., to make sure key material is not left in
375 * heap memory for unnecessarily long time.
376 */
377 if (msg) {
378 struct nlmsghdr *hdr = nlmsg_hdr(msg);
379 void *data = nlmsg_data(hdr);
380 /*
381 * This would use nlmsg_datalen() or the older nlmsg_len() if
382 * only libnl were to maintain a stable API.. Neither will work
383 * with all released versions, so just calculate the length
384 * here.
385 */
386 int len = hdr->nlmsg_len - NLMSG_HDRLEN;
387
388 os_memset(data, 0, len);
389 }
390 }
391
392
393 static int send_and_recv(struct nl80211_global *global,
394 struct nl_handle *nl_handle, struct nl_msg *msg,
395 int (*valid_handler)(struct nl_msg *, void *),
396 void *valid_data)
397 {
398 struct nl_cb *cb;
399 int err = -ENOMEM, opt;
400
401 if (!msg)
402 return -ENOMEM;
403
404 cb = nl_cb_clone(global->nl_cb);
405 if (!cb)
406 goto out;
407
408 /* try to set NETLINK_EXT_ACK to 1, ignoring errors */
409 opt = 1;
410 setsockopt(nl_socket_get_fd(nl_handle), SOL_NETLINK,
411 NETLINK_EXT_ACK, &opt, sizeof(opt));
412
413 /* try to set NETLINK_CAP_ACK to 1, ignoring errors */
414 opt = 1;
415 setsockopt(nl_socket_get_fd(nl_handle), SOL_NETLINK,
416 NETLINK_CAP_ACK, &opt, sizeof(opt));
417
418 err = nl_send_auto_complete(nl_handle, msg);
419 if (err < 0)
420 goto out;
421
422 err = 1;
423
424 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
425 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
426 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
427
428 if (valid_handler)
429 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM,
430 valid_handler, valid_data);
431
432 while (err > 0) {
433 int res = nl_recvmsgs(nl_handle, cb);
434 if (res < 0) {
435 wpa_printf(MSG_INFO,
436 "nl80211: %s->nl_recvmsgs failed: %d",
437 __func__, res);
438 }
439 }
440 out:
441 nl_cb_put(cb);
442 if (!valid_handler && valid_data == (void *) -1)
443 nl80211_nlmsg_clear(msg);
444 nlmsg_free(msg);
445 return err;
446 }
447
448
449 int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv,
450 struct nl_msg *msg,
451 int (*valid_handler)(struct nl_msg *, void *),
452 void *valid_data)
453 {
454 return send_and_recv(drv->global, drv->global->nl, msg,
455 valid_handler, valid_data);
456 }
457
458
459 struct family_data {
460 const char *group;
461 int id;
462 };
463
464
465 static int family_handler(struct nl_msg *msg, void *arg)
466 {
467 struct family_data *res = arg;
468 struct nlattr *tb[CTRL_ATTR_MAX + 1];
469 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
470 struct nlattr *mcgrp;
471 int i;
472
473 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
474 genlmsg_attrlen(gnlh, 0), NULL);
475 if (!tb[CTRL_ATTR_MCAST_GROUPS])
476 return NL_SKIP;
477
478 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) {
479 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1];
480 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp),
481 nla_len(mcgrp), NULL);
482 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] ||
483 !tb2[CTRL_ATTR_MCAST_GRP_ID] ||
484 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]),
485 res->group,
486 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0)
487 continue;
488 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]);
489 break;
490 };
491
492 return NL_SKIP;
493 }
494
495
496 static int nl_get_multicast_id(struct nl80211_global *global,
497 const char *family, const char *group)
498 {
499 struct nl_msg *msg;
500 int ret;
501 struct family_data res = { group, -ENOENT };
502
503 msg = nlmsg_alloc();
504 if (!msg)
505 return -ENOMEM;
506 if (!genlmsg_put(msg, 0, 0, genl_ctrl_resolve(global->nl, "nlctrl"),
507 0, 0, CTRL_CMD_GETFAMILY, 0) ||
508 nla_put_string(msg, CTRL_ATTR_FAMILY_NAME, family)) {
509 nlmsg_free(msg);
510 return -1;
511 }
512
513 ret = send_and_recv(global, global->nl, msg, family_handler, &res);
514 if (ret == 0)
515 ret = res.id;
516 return ret;
517 }
518
519
520 void * nl80211_cmd(struct wpa_driver_nl80211_data *drv,
521 struct nl_msg *msg, int flags, uint8_t cmd)
522 {
523 if (TEST_FAIL())
524 return NULL;
525 return genlmsg_put(msg, 0, 0, drv->global->nl80211_id,
526 0, flags, cmd, 0);
527 }
528
529
530 static int nl80211_set_iface_id(struct nl_msg *msg, struct i802_bss *bss)
531 {
532 if (bss->wdev_id_set)
533 return nla_put_u64(msg, NL80211_ATTR_WDEV, bss->wdev_id);
534 return nla_put_u32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
535 }
536
537
538 struct nl_msg * nl80211_cmd_msg(struct i802_bss *bss, int flags, uint8_t cmd)
539 {
540 struct nl_msg *msg;
541
542 msg = nlmsg_alloc();
543 if (!msg)
544 return NULL;
545
546 if (!nl80211_cmd(bss->drv, msg, flags, cmd) ||
547 nl80211_set_iface_id(msg, bss) < 0) {
548 nlmsg_free(msg);
549 return NULL;
550 }
551
552 return msg;
553 }
554
555
556 static struct nl_msg *
557 nl80211_ifindex_msg(struct wpa_driver_nl80211_data *drv, int ifindex,
558 int flags, uint8_t cmd)
559 {
560 struct nl_msg *msg;
561
562 msg = nlmsg_alloc();
563 if (!msg)
564 return NULL;
565
566 if (!nl80211_cmd(drv, msg, flags, cmd) ||
567 nla_put_u32(msg, NL80211_ATTR_IFINDEX, ifindex)) {
568 nlmsg_free(msg);
569 return NULL;
570 }
571
572 return msg;
573 }
574
575
576 struct nl_msg * nl80211_drv_msg(struct wpa_driver_nl80211_data *drv, int flags,
577 uint8_t cmd)
578 {
579 return nl80211_ifindex_msg(drv, drv->ifindex, flags, cmd);
580 }
581
582
583 struct nl_msg * nl80211_bss_msg(struct i802_bss *bss, int flags, uint8_t cmd)
584 {
585 return nl80211_ifindex_msg(bss->drv, bss->ifindex, flags, cmd);
586 }
587
588
589 struct wiphy_idx_data {
590 int wiphy_idx;
591 enum nl80211_iftype nlmode;
592 u8 *macaddr;
593 };
594
595
596 static int netdev_info_handler(struct nl_msg *msg, void *arg)
597 {
598 struct nlattr *tb[NL80211_ATTR_MAX + 1];
599 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
600 struct wiphy_idx_data *info = arg;
601
602 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
603 genlmsg_attrlen(gnlh, 0), NULL);
604
605 if (tb[NL80211_ATTR_WIPHY])
606 info->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
607
608 if (tb[NL80211_ATTR_IFTYPE])
609 info->nlmode = nla_get_u32(tb[NL80211_ATTR_IFTYPE]);
610
611 if (tb[NL80211_ATTR_MAC] && info->macaddr)
612 os_memcpy(info->macaddr, nla_data(tb[NL80211_ATTR_MAC]),
613 ETH_ALEN);
614
615 return NL_SKIP;
616 }
617
618
619 int nl80211_get_wiphy_index(struct i802_bss *bss)
620 {
621 struct nl_msg *msg;
622 struct wiphy_idx_data data = {
623 .wiphy_idx = -1,
624 .macaddr = NULL,
625 };
626
627 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_GET_INTERFACE)))
628 return -1;
629
630 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0)
631 return data.wiphy_idx;
632 return -1;
633 }
634
635
636 static enum nl80211_iftype nl80211_get_ifmode(struct i802_bss *bss)
637 {
638 struct nl_msg *msg;
639 struct wiphy_idx_data data = {
640 .nlmode = NL80211_IFTYPE_UNSPECIFIED,
641 .macaddr = NULL,
642 };
643
644 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_GET_INTERFACE)))
645 return NL80211_IFTYPE_UNSPECIFIED;
646
647 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0)
648 return data.nlmode;
649 return NL80211_IFTYPE_UNSPECIFIED;
650 }
651
652
653 static int nl80211_get_macaddr(struct i802_bss *bss)
654 {
655 struct nl_msg *msg;
656 struct wiphy_idx_data data = {
657 .macaddr = bss->addr,
658 };
659
660 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_GET_INTERFACE)))
661 return -1;
662
663 return send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data);
664 }
665
666
667 static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv,
668 struct nl80211_wiphy_data *w)
669 {
670 struct nl_msg *msg;
671 int ret;
672
673 msg = nlmsg_alloc();
674 if (!msg)
675 return -1;
676
677 if (!nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_BEACONS) ||
678 nla_put_u32(msg, NL80211_ATTR_WIPHY, w->wiphy_idx)) {
679 nlmsg_free(msg);
680 return -1;
681 }
682
683 ret = send_and_recv(drv->global, w->nl_beacons, msg, NULL, NULL);
684 if (ret) {
685 wpa_printf(MSG_DEBUG, "nl80211: Register beacons command "
686 "failed: ret=%d (%s)",
687 ret, strerror(-ret));
688 }
689 return ret;
690 }
691
692
693 static void nl80211_recv_beacons(int sock, void *eloop_ctx, void *handle)
694 {
695 struct nl80211_wiphy_data *w = eloop_ctx;
696 int res;
697
698 wpa_printf(MSG_EXCESSIVE, "nl80211: Beacon event message available");
699
700 res = nl_recvmsgs(handle, w->nl_cb);
701 if (res < 0) {
702 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d",
703 __func__, res);
704 }
705 }
706
707
708 static int process_beacon_event(struct nl_msg *msg, void *arg)
709 {
710 struct nl80211_wiphy_data *w = arg;
711 struct wpa_driver_nl80211_data *drv;
712 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
713 struct nlattr *tb[NL80211_ATTR_MAX + 1];
714 union wpa_event_data event;
715
716 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
717 genlmsg_attrlen(gnlh, 0), NULL);
718
719 if (gnlh->cmd != NL80211_CMD_FRAME) {
720 wpa_printf(MSG_DEBUG, "nl80211: Unexpected beacon event? (%d)",
721 gnlh->cmd);
722 return NL_SKIP;
723 }
724
725 if (!tb[NL80211_ATTR_FRAME])
726 return NL_SKIP;
727
728 dl_list_for_each(drv, &w->drvs, struct wpa_driver_nl80211_data,
729 wiphy_list) {
730 os_memset(&event, 0, sizeof(event));
731 event.rx_mgmt.frame = nla_data(tb[NL80211_ATTR_FRAME]);
732 event.rx_mgmt.frame_len = nla_len(tb[NL80211_ATTR_FRAME]);
733 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
734 }
735
736 return NL_SKIP;
737 }
738
739
740 static struct nl80211_wiphy_data *
741 nl80211_get_wiphy_data_ap(struct i802_bss *bss)
742 {
743 static DEFINE_DL_LIST(nl80211_wiphys);
744 struct nl80211_wiphy_data *w;
745 int wiphy_idx, found = 0;
746 struct i802_bss *tmp_bss;
747 u8 channel;
748
749 if (bss->wiphy_data != NULL)
750 return bss->wiphy_data;
751
752 wiphy_idx = nl80211_get_wiphy_index(bss);
753
754 dl_list_for_each(w, &nl80211_wiphys, struct nl80211_wiphy_data, list) {
755 if (w->wiphy_idx == wiphy_idx)
756 goto add;
757 }
758
759 /* alloc new one */
760 w = os_zalloc(sizeof(*w));
761 if (w == NULL)
762 return NULL;
763 w->wiphy_idx = wiphy_idx;
764 dl_list_init(&w->bsss);
765 dl_list_init(&w->drvs);
766
767 /* Beacon frames not supported in IEEE 802.11ad */
768 if (ieee80211_freq_to_chan(bss->freq, &channel) !=
769 HOSTAPD_MODE_IEEE80211AD) {
770 w->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
771 if (!w->nl_cb) {
772 os_free(w);
773 return NULL;
774 }
775 nl_cb_set(w->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
776 no_seq_check, NULL);
777 nl_cb_set(w->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
778 process_beacon_event, w);
779
780 w->nl_beacons = nl_create_handle(bss->drv->global->nl_cb,
781 "wiphy beacons");
782 if (w->nl_beacons == NULL) {
783 os_free(w);
784 return NULL;
785 }
786
787 if (nl80211_register_beacons(bss->drv, w)) {
788 nl_destroy_handles(&w->nl_beacons);
789 os_free(w);
790 return NULL;
791 }
792
793 nl80211_register_eloop_read(&w->nl_beacons,
794 nl80211_recv_beacons, w, 0);
795 }
796
797 dl_list_add(&nl80211_wiphys, &w->list);
798
799 add:
800 /* drv entry for this bss already there? */
801 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) {
802 if (tmp_bss->drv == bss->drv) {
803 found = 1;
804 break;
805 }
806 }
807 /* if not add it */
808 if (!found)
809 dl_list_add(&w->drvs, &bss->drv->wiphy_list);
810
811 dl_list_add(&w->bsss, &bss->wiphy_list);
812 bss->wiphy_data = w;
813 return w;
814 }
815
816
817 static void nl80211_put_wiphy_data_ap(struct i802_bss *bss)
818 {
819 struct nl80211_wiphy_data *w = bss->wiphy_data;
820 struct i802_bss *tmp_bss;
821 int found = 0;
822
823 if (w == NULL)
824 return;
825 bss->wiphy_data = NULL;
826 dl_list_del(&bss->wiphy_list);
827
828 /* still any for this drv present? */
829 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) {
830 if (tmp_bss->drv == bss->drv) {
831 found = 1;
832 break;
833 }
834 }
835 /* if not remove it */
836 if (!found)
837 dl_list_del(&bss->drv->wiphy_list);
838
839 if (!dl_list_empty(&w->bsss))
840 return;
841
842 if (w->nl_beacons)
843 nl80211_destroy_eloop_handle(&w->nl_beacons, 0);
844
845 nl_cb_put(w->nl_cb);
846 dl_list_del(&w->list);
847 os_free(w);
848 }
849
850
851 static unsigned int nl80211_get_ifindex(void *priv)
852 {
853 struct i802_bss *bss = priv;
854 struct wpa_driver_nl80211_data *drv = bss->drv;
855
856 return drv->ifindex;
857 }
858
859
860 static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid)
861 {
862 struct i802_bss *bss = priv;
863 struct wpa_driver_nl80211_data *drv = bss->drv;
864 if (!drv->associated)
865 return -1;
866 os_memcpy(bssid, drv->bssid, ETH_ALEN);
867 return 0;
868 }
869
870
871 static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid)
872 {
873 struct i802_bss *bss = priv;
874 struct wpa_driver_nl80211_data *drv = bss->drv;
875 if (!drv->associated)
876 return -1;
877 os_memcpy(ssid, drv->ssid, drv->ssid_len);
878 return drv->ssid_len;
879 }
880
881
882 static void wpa_driver_nl80211_event_newlink(
883 struct nl80211_global *global, struct wpa_driver_nl80211_data *drv,
884 int ifindex, const char *ifname)
885 {
886 union wpa_event_data event;
887
888 if (drv && os_strcmp(drv->first_bss->ifname, ifname) == 0) {
889 if (if_nametoindex(drv->first_bss->ifname) == 0) {
890 wpa_printf(MSG_DEBUG, "nl80211: Interface %s does not exist - ignore RTM_NEWLINK",
891 drv->first_bss->ifname);
892 return;
893 }
894 if (!drv->if_removed)
895 return;
896 wpa_printf(MSG_DEBUG, "nl80211: Mark if_removed=0 for %s based on RTM_NEWLINK event",
897 drv->first_bss->ifname);
898 drv->if_removed = 0;
899 }
900
901 os_memset(&event, 0, sizeof(event));
902 event.interface_status.ifindex = ifindex;
903 os_strlcpy(event.interface_status.ifname, ifname,
904 sizeof(event.interface_status.ifname));
905 event.interface_status.ievent = EVENT_INTERFACE_ADDED;
906 if (drv)
907 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event);
908 else
909 wpa_supplicant_event_global(global->ctx, EVENT_INTERFACE_STATUS,
910 &event);
911 }
912
913
914 static void wpa_driver_nl80211_event_dellink(
915 struct nl80211_global *global, struct wpa_driver_nl80211_data *drv,
916 int ifindex, const char *ifname)
917 {
918 union wpa_event_data event;
919
920 if (drv && os_strcmp(drv->first_bss->ifname, ifname) == 0) {
921 if (drv->if_removed) {
922 wpa_printf(MSG_DEBUG, "nl80211: if_removed already set - ignore RTM_DELLINK event for %s",
923 ifname);
924 return;
925 }
926 wpa_printf(MSG_DEBUG, "RTM_DELLINK: Interface '%s' removed - mark if_removed=1",
927 ifname);
928 drv->if_removed = 1;
929 } else {
930 wpa_printf(MSG_DEBUG, "RTM_DELLINK: Interface '%s' removed",
931 ifname);
932 }
933
934 os_memset(&event, 0, sizeof(event));
935 event.interface_status.ifindex = ifindex;
936 os_strlcpy(event.interface_status.ifname, ifname,
937 sizeof(event.interface_status.ifname));
938 event.interface_status.ievent = EVENT_INTERFACE_REMOVED;
939 if (drv)
940 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event);
941 else
942 wpa_supplicant_event_global(global->ctx, EVENT_INTERFACE_STATUS,
943 &event);
944 }
945
946
947 static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv,
948 u8 *buf, size_t len)
949 {
950 int attrlen, rta_len;
951 struct rtattr *attr;
952
953 attrlen = len;
954 attr = (struct rtattr *) buf;
955
956 rta_len = RTA_ALIGN(sizeof(struct rtattr));
957 while (RTA_OK(attr, attrlen)) {
958 if (attr->rta_type == IFLA_IFNAME) {
959 if (os_strcmp(((char *) attr) + rta_len,
960 drv->first_bss->ifname) == 0)
961 return 1;
962 else
963 break;
964 }
965 attr = RTA_NEXT(attr, attrlen);
966 }
967
968 return 0;
969 }
970
971
972 static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv,
973 int ifindex, u8 *buf, size_t len)
974 {
975 if (drv->ifindex == ifindex)
976 return 1;
977
978 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) {
979 nl80211_check_global(drv->global);
980 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed "
981 "interface");
982 if (wpa_driver_nl80211_finish_drv_init(drv, NULL, 0, NULL) < 0)
983 return -1;
984 return 1;
985 }
986
987 return 0;
988 }
989
990
991 static struct wpa_driver_nl80211_data *
992 nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len,
993 int *init_failed)
994 {
995 struct wpa_driver_nl80211_data *drv;
996 int res;
997
998 if (init_failed)
999 *init_failed = 0;
1000 dl_list_for_each(drv, &global->interfaces,
1001 struct wpa_driver_nl80211_data, list) {
1002 res = wpa_driver_nl80211_own_ifindex(drv, idx, buf, len);
1003 if (res < 0) {
1004 wpa_printf(MSG_DEBUG,
1005 "nl80211: Found matching own interface, but failed to complete reinitialization");
1006 if (init_failed)
1007 *init_failed = 1;
1008 return drv;
1009 }
1010 if (res > 0 || have_ifidx(drv, idx, IFIDX_ANY))
1011 return drv;
1012 }
1013 return NULL;
1014 }
1015
1016
1017 static void nl80211_refresh_mac(struct wpa_driver_nl80211_data *drv,
1018 int ifindex, int notify)
1019 {
1020 struct i802_bss *bss;
1021 u8 addr[ETH_ALEN];
1022
1023 bss = get_bss_ifindex(drv, ifindex);
1024 if (bss &&
1025 linux_get_ifhwaddr(drv->global->ioctl_sock,
1026 bss->ifname, addr) < 0) {
1027 wpa_printf(MSG_DEBUG,
1028 "nl80211: %s: failed to re-read MAC address",
1029 bss->ifname);
1030 } else if (bss && os_memcmp(addr, bss->addr, ETH_ALEN) != 0) {
1031 wpa_printf(MSG_DEBUG,
1032 "nl80211: Own MAC address on ifindex %d (%s) changed from "
1033 MACSTR " to " MACSTR,
1034 ifindex, bss->ifname,
1035 MAC2STR(bss->addr), MAC2STR(addr));
1036 os_memcpy(bss->addr, addr, ETH_ALEN);
1037 if (notify)
1038 wpa_supplicant_event(drv->ctx,
1039 EVENT_INTERFACE_MAC_CHANGED, NULL);
1040 }
1041 }
1042
1043
1044 static void wpa_driver_nl80211_event_rtm_newlink(void *ctx,
1045 struct ifinfomsg *ifi,
1046 u8 *buf, size_t len)
1047 {
1048 struct nl80211_global *global = ctx;
1049 struct wpa_driver_nl80211_data *drv;
1050 int attrlen;
1051 struct rtattr *attr;
1052 u32 brid = 0;
1053 char namebuf[IFNAMSIZ];
1054 char ifname[IFNAMSIZ + 1];
1055 char extra[100], *pos, *end;
1056 int init_failed;
1057
1058 extra[0] = '\0';
1059 pos = extra;
1060 end = pos + sizeof(extra);
1061 ifname[0] = '\0';
1062
1063 attrlen = len;
1064 attr = (struct rtattr *) buf;
1065 while (RTA_OK(attr, attrlen)) {
1066 switch (attr->rta_type) {
1067 case IFLA_IFNAME:
1068 if (RTA_PAYLOAD(attr) >= IFNAMSIZ)
1069 break;
1070 os_memcpy(ifname, RTA_DATA(attr), RTA_PAYLOAD(attr));
1071 ifname[RTA_PAYLOAD(attr)] = '\0';
1072 break;
1073 case IFLA_MASTER:
1074 brid = nla_get_u32((struct nlattr *) attr);
1075 pos += os_snprintf(pos, end - pos, " master=%u", brid);
1076 break;
1077 case IFLA_WIRELESS:
1078 pos += os_snprintf(pos, end - pos, " wext");
1079 break;
1080 case IFLA_OPERSTATE:
1081 pos += os_snprintf(pos, end - pos, " operstate=%u",
1082 nla_get_u32((struct nlattr *) attr));
1083 break;
1084 case IFLA_LINKMODE:
1085 pos += os_snprintf(pos, end - pos, " linkmode=%u",
1086 nla_get_u32((struct nlattr *) attr));
1087 break;
1088 }
1089 attr = RTA_NEXT(attr, attrlen);
1090 }
1091 extra[sizeof(extra) - 1] = '\0';
1092
1093 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: ifi_index=%d ifname=%s%s ifi_family=%d ifi_flags=0x%x (%s%s%s%s)",
1094 ifi->ifi_index, ifname, extra, ifi->ifi_family,
1095 ifi->ifi_flags,
1096 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "",
1097 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "",
1098 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "",
1099 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : "");
1100
1101 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len, &init_failed);
1102 if (!drv)
1103 goto event_newlink;
1104 if (init_failed)
1105 return; /* do not update interface state */
1106
1107 if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) {
1108 namebuf[0] = '\0';
1109 if (if_indextoname(ifi->ifi_index, namebuf) &&
1110 linux_iface_up(drv->global->ioctl_sock, namebuf) > 0) {
1111 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down "
1112 "event since interface %s is up", namebuf);
1113 drv->ignore_if_down_event = 0;
1114 /* Re-read MAC address as it may have changed */
1115 nl80211_refresh_mac(drv, ifi->ifi_index, 1);
1116 return;
1117 }
1118 wpa_printf(MSG_DEBUG, "nl80211: Interface down (%s/%s)",
1119 namebuf, ifname);
1120 if (os_strcmp(drv->first_bss->ifname, ifname) != 0) {
1121 wpa_printf(MSG_DEBUG,
1122 "nl80211: Not the main interface (%s) - do not indicate interface down",
1123 drv->first_bss->ifname);
1124 } else if (drv->ignore_if_down_event) {
1125 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down "
1126 "event generated by mode change");
1127 drv->ignore_if_down_event = 0;
1128 } else {
1129 drv->if_disabled = 1;
1130 wpa_supplicant_event(drv->ctx,
1131 EVENT_INTERFACE_DISABLED, NULL);
1132
1133 /*
1134 * Try to get drv again, since it may be removed as
1135 * part of the EVENT_INTERFACE_DISABLED handling for
1136 * dynamic interfaces
1137 */
1138 drv = nl80211_find_drv(global, ifi->ifi_index,
1139 buf, len, NULL);
1140 if (!drv)
1141 return;
1142 }
1143 }
1144
1145 if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) {
1146 namebuf[0] = '\0';
1147 if (if_indextoname(ifi->ifi_index, namebuf) &&
1148 linux_iface_up(drv->global->ioctl_sock, namebuf) == 0) {
1149 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
1150 "event since interface %s is down",
1151 namebuf);
1152 return;
1153 }
1154 wpa_printf(MSG_DEBUG, "nl80211: Interface up (%s/%s)",
1155 namebuf, ifname);
1156 if (os_strcmp(drv->first_bss->ifname, ifname) != 0) {
1157 wpa_printf(MSG_DEBUG,
1158 "nl80211: Not the main interface (%s) - do not indicate interface up",
1159 drv->first_bss->ifname);
1160 } else if (if_nametoindex(drv->first_bss->ifname) == 0) {
1161 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
1162 "event since interface %s does not exist",
1163 drv->first_bss->ifname);
1164 } else if (drv->if_removed) {
1165 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
1166 "event since interface %s is marked "
1167 "removed", drv->first_bss->ifname);
1168 } else {
1169 /* Re-read MAC address as it may have changed */
1170 nl80211_refresh_mac(drv, ifi->ifi_index, 0);
1171
1172 drv->if_disabled = 0;
1173 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED,
1174 NULL);
1175 }
1176 }
1177
1178 /*
1179 * Some drivers send the association event before the operup event--in
1180 * this case, lifting operstate in wpa_driver_nl80211_set_operstate()
1181 * fails. This will hit us when wpa_supplicant does not need to do
1182 * IEEE 802.1X authentication
1183 */
1184 if (drv->operstate == 1 &&
1185 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP &&
1186 !(ifi->ifi_flags & IFF_RUNNING)) {
1187 wpa_printf(MSG_DEBUG, "nl80211: Set IF_OPER_UP again based on ifi_flags and expected operstate");
1188 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex,
1189 -1, IF_OPER_UP);
1190 }
1191
1192 event_newlink:
1193 if (ifname[0])
1194 wpa_driver_nl80211_event_newlink(global, drv, ifi->ifi_index,
1195 ifname);
1196
1197 if (ifi->ifi_family == AF_BRIDGE && brid && drv) {
1198 struct i802_bss *bss;
1199
1200 /* device has been added to bridge */
1201 if (!if_indextoname(brid, namebuf)) {
1202 wpa_printf(MSG_DEBUG,
1203 "nl80211: Could not find bridge ifname for ifindex %u",
1204 brid);
1205 return;
1206 }
1207 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s",
1208 brid, namebuf);
1209 add_ifidx(drv, brid, ifi->ifi_index);
1210
1211 for (bss = drv->first_bss; bss; bss = bss->next) {
1212 if (os_strcmp(ifname, bss->ifname) == 0) {
1213 os_strlcpy(bss->brname, namebuf, IFNAMSIZ);
1214 break;
1215 }
1216 }
1217 }
1218 }
1219
1220
1221 static void wpa_driver_nl80211_event_rtm_dellink(void *ctx,
1222 struct ifinfomsg *ifi,
1223 u8 *buf, size_t len)
1224 {
1225 struct nl80211_global *global = ctx;
1226 struct wpa_driver_nl80211_data *drv;
1227 int attrlen;
1228 struct rtattr *attr;
1229 u32 brid = 0;
1230 char ifname[IFNAMSIZ + 1];
1231 char extra[100], *pos, *end;
1232
1233 extra[0] = '\0';
1234 pos = extra;
1235 end = pos + sizeof(extra);
1236 ifname[0] = '\0';
1237
1238 attrlen = len;
1239 attr = (struct rtattr *) buf;
1240 while (RTA_OK(attr, attrlen)) {
1241 switch (attr->rta_type) {
1242 case IFLA_IFNAME:
1243 if (RTA_PAYLOAD(attr) >= IFNAMSIZ)
1244 break;
1245 os_memcpy(ifname, RTA_DATA(attr), RTA_PAYLOAD(attr));
1246 ifname[RTA_PAYLOAD(attr)] = '\0';
1247 break;
1248 case IFLA_MASTER:
1249 brid = nla_get_u32((struct nlattr *) attr);
1250 pos += os_snprintf(pos, end - pos, " master=%u", brid);
1251 break;
1252 case IFLA_OPERSTATE:
1253 pos += os_snprintf(pos, end - pos, " operstate=%u",
1254 nla_get_u32((struct nlattr *) attr));
1255 break;
1256 case IFLA_LINKMODE:
1257 pos += os_snprintf(pos, end - pos, " linkmode=%u",
1258 nla_get_u32((struct nlattr *) attr));
1259 break;
1260 }
1261 attr = RTA_NEXT(attr, attrlen);
1262 }
1263 extra[sizeof(extra) - 1] = '\0';
1264
1265 wpa_printf(MSG_DEBUG, "RTM_DELLINK: ifi_index=%d ifname=%s%s ifi_family=%d ifi_flags=0x%x (%s%s%s%s)",
1266 ifi->ifi_index, ifname, extra, ifi->ifi_family,
1267 ifi->ifi_flags,
1268 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "",
1269 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "",
1270 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "",
1271 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : "");
1272
1273 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len, NULL);
1274
1275 if (ifi->ifi_family == AF_BRIDGE && brid && drv) {
1276 /* device has been removed from bridge */
1277 char namebuf[IFNAMSIZ];
1278
1279 if (!if_indextoname(brid, namebuf)) {
1280 wpa_printf(MSG_DEBUG,
1281 "nl80211: Could not find bridge ifname for ifindex %u",
1282 brid);
1283 } else {
1284 wpa_printf(MSG_DEBUG,
1285 "nl80211: Remove ifindex %u for bridge %s",
1286 brid, namebuf);
1287 }
1288 del_ifidx(drv, brid, ifi->ifi_index);
1289 }
1290
1291 if (ifi->ifi_family != AF_BRIDGE || !brid)
1292 wpa_driver_nl80211_event_dellink(global, drv, ifi->ifi_index,
1293 ifname);
1294 }
1295
1296
1297 struct nl80211_get_assoc_freq_arg {
1298 struct wpa_driver_nl80211_data *drv;
1299 unsigned int assoc_freq;
1300 unsigned int ibss_freq;
1301 u8 assoc_bssid[ETH_ALEN];
1302 u8 assoc_ssid[SSID_MAX_LEN];
1303 u8 assoc_ssid_len;
1304 };
1305
1306 static int nl80211_get_assoc_freq_handler(struct nl_msg *msg, void *arg)
1307 {
1308 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1309 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1310 struct nlattr *bss[NL80211_BSS_MAX + 1];
1311 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
1312 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC },
1313 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 },
1314 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC },
1315 [NL80211_BSS_STATUS] = { .type = NLA_U32 },
1316 };
1317 struct nl80211_get_assoc_freq_arg *ctx = arg;
1318 enum nl80211_bss_status status;
1319
1320 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1321 genlmsg_attrlen(gnlh, 0), NULL);
1322 if (!tb[NL80211_ATTR_BSS] ||
1323 nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS],
1324 bss_policy) ||
1325 !bss[NL80211_BSS_STATUS])
1326 return NL_SKIP;
1327
1328 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
1329 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
1330 bss[NL80211_BSS_FREQUENCY]) {
1331 ctx->assoc_freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
1332 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz",
1333 ctx->assoc_freq);
1334 }
1335 if (status == NL80211_BSS_STATUS_IBSS_JOINED &&
1336 bss[NL80211_BSS_FREQUENCY]) {
1337 ctx->ibss_freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
1338 wpa_printf(MSG_DEBUG, "nl80211: IBSS-joined on %u MHz",
1339 ctx->ibss_freq);
1340 }
1341 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
1342 bss[NL80211_BSS_BSSID]) {
1343 os_memcpy(ctx->assoc_bssid,
1344 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN);
1345 wpa_printf(MSG_DEBUG, "nl80211: Associated with "
1346 MACSTR, MAC2STR(ctx->assoc_bssid));
1347 }
1348
1349 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
1350 bss[NL80211_BSS_INFORMATION_ELEMENTS]) {
1351 const u8 *ie, *ssid;
1352 size_t ie_len;
1353
1354 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
1355 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
1356 ssid = get_ie(ie, ie_len, WLAN_EID_SSID);
1357 if (ssid && ssid[1] > 0 && ssid[1] <= SSID_MAX_LEN) {
1358 ctx->assoc_ssid_len = ssid[1];
1359 os_memcpy(ctx->assoc_ssid, ssid + 2, ssid[1]);
1360 }
1361 }
1362
1363 return NL_SKIP;
1364 }
1365
1366
1367 int nl80211_get_assoc_ssid(struct wpa_driver_nl80211_data *drv, u8 *ssid)
1368 {
1369 struct nl_msg *msg;
1370 int ret;
1371 struct nl80211_get_assoc_freq_arg arg;
1372
1373 msg = nl80211_drv_msg(drv, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
1374 os_memset(&arg, 0, sizeof(arg));
1375 arg.drv = drv;
1376 ret = send_and_recv_msgs(drv, msg, nl80211_get_assoc_freq_handler,
1377 &arg);
1378 if (ret == 0) {
1379 os_memcpy(ssid, arg.assoc_ssid, arg.assoc_ssid_len);
1380 return arg.assoc_ssid_len;
1381 }
1382 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d (%s)",
1383 ret, strerror(-ret));
1384 return ret;
1385 }
1386
1387
1388 unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv)
1389 {
1390 struct nl_msg *msg;
1391 int ret;
1392 struct nl80211_get_assoc_freq_arg arg;
1393
1394 msg = nl80211_drv_msg(drv, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
1395 os_memset(&arg, 0, sizeof(arg));
1396 arg.drv = drv;
1397 ret = send_and_recv_msgs(drv, msg, nl80211_get_assoc_freq_handler,
1398 &arg);
1399 if (ret == 0) {
1400 unsigned int freq = drv->nlmode == NL80211_IFTYPE_ADHOC ?
1401 arg.ibss_freq : arg.assoc_freq;
1402 wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the "
1403 "associated BSS from scan results: %u MHz", freq);
1404 if (freq)
1405 drv->assoc_freq = freq;
1406 return drv->assoc_freq;
1407 }
1408 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
1409 "(%s)", ret, strerror(-ret));
1410 return drv->assoc_freq;
1411 }
1412
1413
1414 static int get_link_signal(struct nl_msg *msg, void *arg)
1415 {
1416 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1417 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1418 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1];
1419 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = {
1420 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 },
1421 [NL80211_STA_INFO_SIGNAL_AVG] = { .type = NLA_U8 },
1422 [NL80211_STA_INFO_BEACON_SIGNAL_AVG] = { .type = NLA_U8 },
1423 };
1424 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1];
1425 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = {
1426 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 },
1427 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 },
1428 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG },
1429 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG },
1430 };
1431 struct wpa_signal_info *sig_change = arg;
1432
1433 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1434 genlmsg_attrlen(gnlh, 0), NULL);
1435 if (!tb[NL80211_ATTR_STA_INFO] ||
1436 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX,
1437 tb[NL80211_ATTR_STA_INFO], policy))
1438 return NL_SKIP;
1439 if (!sinfo[NL80211_STA_INFO_SIGNAL])
1440 return NL_SKIP;
1441
1442 sig_change->current_signal =
1443 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]);
1444
1445 if (sinfo[NL80211_STA_INFO_SIGNAL_AVG])
1446 sig_change->avg_signal =
1447 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL_AVG]);
1448 else
1449 sig_change->avg_signal = 0;
1450
1451 if (sinfo[NL80211_STA_INFO_BEACON_SIGNAL_AVG])
1452 sig_change->avg_beacon_signal =
1453 (s8)
1454 nla_get_u8(sinfo[NL80211_STA_INFO_BEACON_SIGNAL_AVG]);
1455 else
1456 sig_change->avg_beacon_signal = 0;
1457
1458 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) {
1459 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX,
1460 sinfo[NL80211_STA_INFO_TX_BITRATE],
1461 rate_policy)) {
1462 sig_change->current_txrate = 0;
1463 } else {
1464 if (rinfo[NL80211_RATE_INFO_BITRATE]) {
1465 sig_change->current_txrate =
1466 nla_get_u16(rinfo[
1467 NL80211_RATE_INFO_BITRATE]) * 100;
1468 }
1469 }
1470 }
1471
1472 return NL_SKIP;
1473 }
1474
1475
1476 int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv,
1477 struct wpa_signal_info *sig)
1478 {
1479 struct nl_msg *msg;
1480
1481 sig->current_signal = -WPA_INVALID_NOISE;
1482 sig->current_txrate = 0;
1483
1484 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_GET_STATION)) ||
1485 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid)) {
1486 nlmsg_free(msg);
1487 return -ENOBUFS;
1488 }
1489
1490 return send_and_recv_msgs(drv, msg, get_link_signal, sig);
1491 }
1492
1493
1494 static int get_link_noise(struct nl_msg *msg, void *arg)
1495 {
1496 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1497 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1498 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
1499 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
1500 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
1501 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
1502 };
1503 struct wpa_signal_info *sig_change = arg;
1504
1505 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1506 genlmsg_attrlen(gnlh, 0), NULL);
1507
1508 if (!tb[NL80211_ATTR_SURVEY_INFO]) {
1509 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!");
1510 return NL_SKIP;
1511 }
1512
1513 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
1514 tb[NL80211_ATTR_SURVEY_INFO],
1515 survey_policy)) {
1516 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested "
1517 "attributes!");
1518 return NL_SKIP;
1519 }
1520
1521 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY])
1522 return NL_SKIP;
1523
1524 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) !=
1525 sig_change->frequency)
1526 return NL_SKIP;
1527
1528 if (!sinfo[NL80211_SURVEY_INFO_NOISE])
1529 return NL_SKIP;
1530
1531 sig_change->current_noise =
1532 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
1533
1534 return NL_SKIP;
1535 }
1536
1537
1538 int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv,
1539 struct wpa_signal_info *sig_change)
1540 {
1541 struct nl_msg *msg;
1542
1543 sig_change->current_noise = WPA_INVALID_NOISE;
1544 sig_change->frequency = drv->assoc_freq;
1545
1546 msg = nl80211_drv_msg(drv, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
1547 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change);
1548 }
1549
1550
1551 static int get_channel_info(struct nl_msg *msg, void *arg)
1552 {
1553 struct nlattr *tb[NL80211_ATTR_MAX + 1] = { 0 };
1554 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1555 struct wpa_channel_info *chan_info = arg;
1556
1557 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1558 genlmsg_attrlen(gnlh, 0), NULL);
1559
1560 os_memset(chan_info, 0, sizeof(struct wpa_channel_info));
1561 chan_info->chanwidth = CHAN_WIDTH_UNKNOWN;
1562
1563 if (tb[NL80211_ATTR_WIPHY_FREQ])
1564 chan_info->frequency =
1565 nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]);
1566 if (tb[NL80211_ATTR_CHANNEL_WIDTH])
1567 chan_info->chanwidth = convert2width(
1568 nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH]));
1569 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1570 enum nl80211_channel_type ct =
1571 nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1572
1573 switch (ct) {
1574 case NL80211_CHAN_HT40MINUS:
1575 chan_info->sec_channel = -1;
1576 break;
1577 case NL80211_CHAN_HT40PLUS:
1578 chan_info->sec_channel = 1;
1579 break;
1580 default:
1581 chan_info->sec_channel = 0;
1582 break;
1583 }
1584 }
1585 if (tb[NL80211_ATTR_CENTER_FREQ1])
1586 chan_info->center_frq1 =
1587 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]);
1588 if (tb[NL80211_ATTR_CENTER_FREQ2])
1589 chan_info->center_frq2 =
1590 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]);
1591
1592 if (chan_info->center_frq2) {
1593 u8 seg1_idx = 0;
1594
1595 if (ieee80211_freq_to_chan(chan_info->center_frq2, &seg1_idx) !=
1596 NUM_HOSTAPD_MODES)
1597 chan_info->seg1_idx = seg1_idx;
1598 }
1599
1600 return NL_SKIP;
1601 }
1602
1603
1604 static int nl80211_channel_info(void *priv, struct wpa_channel_info *ci)
1605 {
1606 struct i802_bss *bss = priv;
1607 struct wpa_driver_nl80211_data *drv = bss->drv;
1608 struct nl_msg *msg;
1609
1610 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_GET_INTERFACE);
1611 return send_and_recv_msgs(drv, msg, get_channel_info, ci);
1612 }
1613
1614
1615 static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx,
1616 void *handle)
1617 {
1618 struct nl_cb *cb = eloop_ctx;
1619 int res;
1620
1621 wpa_printf(MSG_MSGDUMP, "nl80211: Event message available");
1622
1623 res = nl_recvmsgs(handle, cb);
1624 if (res < 0) {
1625 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d",
1626 __func__, res);
1627 }
1628 }
1629
1630
1631 /**
1632 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain
1633 * @priv: driver_nl80211 private data
1634 * @alpha2_arg: country to which to switch to
1635 * Returns: 0 on success, -1 on failure
1636 *
1637 * This asks nl80211 to set the regulatory domain for given
1638 * country ISO / IEC alpha2.
1639 */
1640 static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg)
1641 {
1642 struct i802_bss *bss = priv;
1643 struct wpa_driver_nl80211_data *drv = bss->drv;
1644 char alpha2[3];
1645 struct nl_msg *msg;
1646
1647 msg = nlmsg_alloc();
1648 if (!msg)
1649 return -ENOMEM;
1650
1651 alpha2[0] = alpha2_arg[0];
1652 alpha2[1] = alpha2_arg[1];
1653 alpha2[2] = '\0';
1654
1655 if (!nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG) ||
1656 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, alpha2)) {
1657 nlmsg_free(msg);
1658 return -EINVAL;
1659 }
1660 if (send_and_recv_msgs(drv, msg, NULL, NULL))
1661 return -EINVAL;
1662 return 0;
1663 }
1664
1665
1666 static int nl80211_get_country(struct nl_msg *msg, void *arg)
1667 {
1668 char *alpha2 = arg;
1669 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
1670 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1671
1672 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1673 genlmsg_attrlen(gnlh, 0), NULL);
1674 if (!tb_msg[NL80211_ATTR_REG_ALPHA2]) {
1675 wpa_printf(MSG_DEBUG, "nl80211: No country information available");
1676 return NL_SKIP;
1677 }
1678 os_strlcpy(alpha2, nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]), 3);
1679 return NL_SKIP;
1680 }
1681
1682
1683 static int wpa_driver_nl80211_get_country(void *priv, char *alpha2)
1684 {
1685 struct i802_bss *bss = priv;
1686 struct wpa_driver_nl80211_data *drv = bss->drv;
1687 struct nl_msg *msg;
1688 int ret;
1689
1690 msg = nlmsg_alloc();
1691 if (!msg)
1692 return -ENOMEM;
1693
1694 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG);
1695 alpha2[0] = '\0';
1696 ret = send_and_recv_msgs(drv, msg, nl80211_get_country, alpha2);
1697 if (!alpha2[0])
1698 ret = -1;
1699
1700 return ret;
1701 }
1702
1703
1704 static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global)
1705 {
1706 int ret;
1707
1708 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
1709 if (global->nl_cb == NULL) {
1710 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
1711 "callbacks");
1712 return -1;
1713 }
1714
1715 global->nl = nl_create_handle(global->nl_cb, "nl");
1716 if (global->nl == NULL)
1717 goto err;
1718
1719 global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211");
1720 if (global->nl80211_id < 0) {
1721 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not "
1722 "found");
1723 goto err;
1724 }
1725
1726 global->nl_event = nl_create_handle(global->nl_cb, "event");
1727 if (global->nl_event == NULL)
1728 goto err;
1729
1730 ret = nl_get_multicast_id(global, "nl80211", "scan");
1731 if (ret >= 0)
1732 ret = nl_socket_add_membership(global->nl_event, ret);
1733 if (ret < 0) {
1734 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
1735 "membership for scan events: %d (%s)",
1736 ret, strerror(-ret));
1737 goto err;
1738 }
1739
1740 ret = nl_get_multicast_id(global, "nl80211", "mlme");
1741 if (ret >= 0)
1742 ret = nl_socket_add_membership(global->nl_event, ret);
1743 if (ret < 0) {
1744 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
1745 "membership for mlme events: %d (%s)",
1746 ret, strerror(-ret));
1747 goto err;
1748 }
1749
1750 ret = nl_get_multicast_id(global, "nl80211", "regulatory");
1751 if (ret >= 0)
1752 ret = nl_socket_add_membership(global->nl_event, ret);
1753 if (ret < 0) {
1754 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast "
1755 "membership for regulatory events: %d (%s)",
1756 ret, strerror(-ret));
1757 /* Continue without regulatory events */
1758 }
1759
1760 ret = nl_get_multicast_id(global, "nl80211", "vendor");
1761 if (ret >= 0)
1762 ret = nl_socket_add_membership(global->nl_event, ret);
1763 if (ret < 0) {
1764 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast "
1765 "membership for vendor events: %d (%s)",
1766 ret, strerror(-ret));
1767 /* Continue without vendor events */
1768 }
1769
1770 nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
1771 no_seq_check, NULL);
1772 nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
1773 process_global_event, global);
1774
1775 nl80211_register_eloop_read(&global->nl_event,
1776 wpa_driver_nl80211_event_receive,
1777 global->nl_cb, 0);
1778
1779 return 0;
1780
1781 err:
1782 nl_destroy_handles(&global->nl_event);
1783 nl_destroy_handles(&global->nl);
1784 nl_cb_put(global->nl_cb);
1785 global->nl_cb = NULL;
1786 return -1;
1787 }
1788
1789
1790 static void nl80211_check_global(struct nl80211_global *global)
1791 {
1792 struct nl_handle *handle;
1793 const char *groups[] = { "scan", "mlme", "regulatory", "vendor", NULL };
1794 int ret;
1795 unsigned int i;
1796
1797 /*
1798 * Try to re-add memberships to handle case of cfg80211 getting reloaded
1799 * and all registration having been cleared.
1800 */
1801 handle = (void *) (((intptr_t) global->nl_event) ^
1802 ELOOP_SOCKET_INVALID);
1803
1804 for (i = 0; groups[i]; i++) {
1805 ret = nl_get_multicast_id(global, "nl80211", groups[i]);
1806 if (ret >= 0)
1807 ret = nl_socket_add_membership(handle, ret);
1808 if (ret < 0) {
1809 wpa_printf(MSG_INFO,
1810 "nl80211: Could not re-add multicast membership for %s events: %d (%s)",
1811 groups[i], ret, strerror(-ret));
1812 }
1813 }
1814 }
1815
1816
1817 static void wpa_driver_nl80211_rfkill_blocked(void *ctx)
1818 {
1819 struct wpa_driver_nl80211_data *drv = ctx;
1820
1821 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked");
1822
1823 /*
1824 * rtnetlink ifdown handler will report interfaces other than the P2P
1825 * Device interface as disabled.
1826 */
1827 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE)
1828 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_DISABLED, NULL);
1829 }
1830
1831
1832 static void wpa_driver_nl80211_rfkill_unblocked(void *ctx)
1833 {
1834 struct wpa_driver_nl80211_data *drv = ctx;
1835 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked");
1836 if (i802_set_iface_flags(drv->first_bss, 1)) {
1837 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP "
1838 "after rfkill unblock");
1839 return;
1840 }
1841
1842 if (is_p2p_net_interface(drv->nlmode))
1843 nl80211_disable_11b_rates(drv, drv->ifindex, 1);
1844
1845 /*
1846 * rtnetlink ifup handler will report interfaces other than the P2P
1847 * Device interface as enabled.
1848 */
1849 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE)
1850 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED, NULL);
1851 }
1852
1853
1854 static void wpa_driver_nl80211_handle_eapol_tx_status(int sock,
1855 void *eloop_ctx,
1856 void *handle)
1857 {
1858 struct wpa_driver_nl80211_data *drv = eloop_ctx;
1859 u8 data[2048];
1860 struct msghdr msg;
1861 struct iovec entry;
1862 u8 control[512];
1863 struct cmsghdr *cmsg;
1864 int res, found_ee = 0, found_wifi = 0, acked = 0;
1865 union wpa_event_data event;
1866
1867 memset(&msg, 0, sizeof(msg));
1868 msg.msg_iov = &entry;
1869 msg.msg_iovlen = 1;
1870 entry.iov_base = data;
1871 entry.iov_len = sizeof(data);
1872 msg.msg_control = &control;
1873 msg.msg_controllen = sizeof(control);
1874
1875 res = recvmsg(sock, &msg, MSG_ERRQUEUE);
1876 /* if error or not fitting 802.3 header, return */
1877 if (res < 14)
1878 return;
1879
1880 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg))
1881 {
1882 if (cmsg->cmsg_level == SOL_SOCKET &&
1883 cmsg->cmsg_type == SCM_WIFI_STATUS) {
1884 int *ack;
1885
1886 found_wifi = 1;
1887 ack = (void *)CMSG_DATA(cmsg);
1888 acked = *ack;
1889 }
1890
1891 if (cmsg->cmsg_level == SOL_PACKET &&
1892 cmsg->cmsg_type == PACKET_TX_TIMESTAMP) {
1893 struct sock_extended_err *err =
1894 (struct sock_extended_err *)CMSG_DATA(cmsg);
1895
1896 if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS)
1897 found_ee = 1;
1898 }
1899 }
1900
1901 if (!found_ee || !found_wifi)
1902 return;
1903
1904 memset(&event, 0, sizeof(event));
1905 event.eapol_tx_status.dst = data;
1906 event.eapol_tx_status.data = data + 14;
1907 event.eapol_tx_status.data_len = res - 14;
1908 event.eapol_tx_status.ack = acked;
1909 wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event);
1910 }
1911
1912
1913 static int nl80211_init_bss(struct i802_bss *bss)
1914 {
1915 bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
1916 if (!bss->nl_cb)
1917 return -1;
1918
1919 nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
1920 no_seq_check, NULL);
1921 nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
1922 process_bss_event, bss);
1923
1924 return 0;
1925 }
1926
1927
1928 static void nl80211_destroy_bss(struct i802_bss *bss)
1929 {
1930 nl_cb_put(bss->nl_cb);
1931 bss->nl_cb = NULL;
1932 }
1933
1934
1935 static void
1936 wpa_driver_nl80211_drv_init_rfkill(struct wpa_driver_nl80211_data *drv)
1937 {
1938 struct rfkill_config *rcfg;
1939
1940 if (drv->rfkill)
1941 return;
1942
1943 rcfg = os_zalloc(sizeof(*rcfg));
1944 if (!rcfg)
1945 return;
1946
1947 rcfg->ctx = drv;
1948
1949 /* rfkill uses netdev sysfs for initialization. However, P2P Device is
1950 * not associated with a netdev, so use the name of some other interface
1951 * sharing the same wiphy as the P2P Device interface.
1952 *
1953 * Note: This is valid, as a P2P Device interface is always dynamically
1954 * created and is created only once another wpa_s interface was added.
1955 */
1956 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) {
1957 struct nl80211_global *global = drv->global;
1958 struct wpa_driver_nl80211_data *tmp1;
1959
1960 dl_list_for_each(tmp1, &global->interfaces,
1961 struct wpa_driver_nl80211_data, list) {
1962 if (drv == tmp1 || drv->wiphy_idx != tmp1->wiphy_idx ||
1963 !tmp1->rfkill)
1964 continue;
1965
1966 wpa_printf(MSG_DEBUG,
1967 "nl80211: Use (%s) to initialize P2P Device rfkill",
1968 tmp1->first_bss->ifname);
1969 os_strlcpy(rcfg->ifname, tmp1->first_bss->ifname,
1970 sizeof(rcfg->ifname));
1971 break;
1972 }
1973 } else {
1974 os_strlcpy(rcfg->ifname, drv->first_bss->ifname,
1975 sizeof(rcfg->ifname));
1976 }
1977
1978 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked;
1979 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked;
1980 drv->rfkill = rfkill_init(rcfg);
1981 if (!drv->rfkill) {
1982 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available");
1983 os_free(rcfg);
1984 }
1985 }
1986
1987
1988 static void * wpa_driver_nl80211_drv_init(void *ctx, const char *ifname,
1989 void *global_priv, int hostapd,
1990 const u8 *set_addr,
1991 const char *driver_params)
1992 {
1993 struct wpa_driver_nl80211_data *drv;
1994 struct i802_bss *bss;
1995
1996 if (global_priv == NULL)
1997 return NULL;
1998 drv = os_zalloc(sizeof(*drv));
1999 if (drv == NULL)
2000 return NULL;
2001 drv->global = global_priv;
2002 drv->ctx = ctx;
2003 drv->hostapd = !!hostapd;
2004 drv->eapol_sock = -1;
2005
2006 /*
2007 * There is no driver capability flag for this, so assume it is
2008 * supported and disable this on first attempt to use if the driver
2009 * rejects the command due to missing support.
2010 */
2011 drv->set_rekey_offload = 1;
2012
2013 drv->num_if_indices = ARRAY_SIZE(drv->default_if_indices);
2014 drv->if_indices = drv->default_if_indices;
2015
2016 drv->first_bss = os_zalloc(sizeof(*drv->first_bss));
2017 if (!drv->first_bss) {
2018 os_free(drv);
2019 return NULL;
2020 }
2021 bss = drv->first_bss;
2022 bss->drv = drv;
2023 bss->ctx = ctx;
2024
2025 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname));
2026 drv->monitor_ifidx = -1;
2027 drv->monitor_sock = -1;
2028 drv->eapol_tx_sock = -1;
2029 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
2030
2031 if (nl80211_init_bss(bss))
2032 goto failed;
2033
2034 if (wpa_driver_nl80211_finish_drv_init(drv, set_addr, 1, driver_params))
2035 goto failed;
2036
2037 drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0);
2038 if (drv->eapol_tx_sock < 0)
2039 goto failed;
2040
2041 if (drv->data_tx_status) {
2042 int enabled = 1;
2043
2044 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS,
2045 &enabled, sizeof(enabled)) < 0) {
2046 wpa_printf(MSG_DEBUG,
2047 "nl80211: wifi status sockopt failed\n");
2048 drv->data_tx_status = 0;
2049 if (!drv->use_monitor)
2050 drv->capa.flags &=
2051 ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
2052 } else {
2053 eloop_register_read_sock(drv->eapol_tx_sock,
2054 wpa_driver_nl80211_handle_eapol_tx_status,
2055 drv, NULL);
2056 }
2057 }
2058
2059 if (drv->global) {
2060 nl80211_check_global(drv->global);
2061 dl_list_add(&drv->global->interfaces, &drv->list);
2062 drv->in_interface_list = 1;
2063 }
2064
2065 return bss;
2066
2067 failed:
2068 wpa_driver_nl80211_deinit(bss);
2069 return NULL;
2070 }
2071
2072
2073 /**
2074 * wpa_driver_nl80211_init - Initialize nl80211 driver interface
2075 * @ctx: context to be used when calling wpa_supplicant functions,
2076 * e.g., wpa_supplicant_event()
2077 * @ifname: interface name, e.g., wlan0
2078 * @global_priv: private driver global data from global_init()
2079 * Returns: Pointer to private data, %NULL on failure
2080 */
2081 static void * wpa_driver_nl80211_init(void *ctx, const char *ifname,
2082 void *global_priv)
2083 {
2084 return wpa_driver_nl80211_drv_init(ctx, ifname, global_priv, 0, NULL,
2085 NULL);
2086 }
2087
2088
2089 static int nl80211_register_frame(struct i802_bss *bss,
2090 struct nl_handle *nl_handle,
2091 u16 type, const u8 *match, size_t match_len)
2092 {
2093 struct wpa_driver_nl80211_data *drv = bss->drv;
2094 struct nl_msg *msg;
2095 int ret;
2096 char buf[30];
2097
2098 buf[0] = '\0';
2099 wpa_snprintf_hex(buf, sizeof(buf), match, match_len);
2100 wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x (%s) nl_handle=%p match=%s",
2101 type, fc2str(type), nl_handle, buf);
2102
2103 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_REGISTER_ACTION)) ||
2104 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE, type) ||
2105 nla_put(msg, NL80211_ATTR_FRAME_MATCH, match_len, match)) {
2106 nlmsg_free(msg);
2107 return -1;
2108 }
2109
2110 ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL);
2111 if (ret) {
2112 wpa_printf(MSG_DEBUG, "nl80211: Register frame command "
2113 "failed (type=%u): ret=%d (%s)",
2114 type, ret, strerror(-ret));
2115 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match",
2116 match, match_len);
2117 }
2118 return ret;
2119 }
2120
2121
2122 static int nl80211_alloc_mgmt_handle(struct i802_bss *bss)
2123 {
2124 if (bss->nl_mgmt) {
2125 wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting "
2126 "already on! (nl_mgmt=%p)", bss->nl_mgmt);
2127 return -1;
2128 }
2129
2130 bss->nl_mgmt = nl_create_handle(bss->nl_cb, "mgmt");
2131 if (bss->nl_mgmt == NULL)
2132 return -1;
2133
2134 return 0;
2135 }
2136
2137
2138 static void nl80211_mgmt_handle_register_eloop(struct i802_bss *bss)
2139 {
2140 nl80211_register_eloop_read(&bss->nl_mgmt,
2141 wpa_driver_nl80211_event_receive,
2142 bss->nl_cb, 0);
2143 }
2144
2145
2146 static int nl80211_register_action_frame(struct i802_bss *bss,
2147 const u8 *match, size_t match_len)
2148 {
2149 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4);
2150 return nl80211_register_frame(bss, bss->nl_mgmt,
2151 type, match, match_len);
2152 }
2153
2154
2155 static int nl80211_init_connect_handle(struct i802_bss *bss)
2156 {
2157 if (bss->nl_connect) {
2158 wpa_printf(MSG_DEBUG,
2159 "nl80211: Connect handle already created (nl_connect=%p)",
2160 bss->nl_connect);
2161 return -1;
2162 }
2163
2164 bss->nl_connect = nl_create_handle(bss->nl_cb, "connect");
2165 if (!bss->nl_connect)
2166 return -1;
2167 nl80211_register_eloop_read(&bss->nl_connect,
2168 wpa_driver_nl80211_event_receive,
2169 bss->nl_cb, 1);
2170 return 0;
2171 }
2172
2173
2174 static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss)
2175 {
2176 struct wpa_driver_nl80211_data *drv = bss->drv;
2177 int ret = 0;
2178
2179 if (nl80211_alloc_mgmt_handle(bss))
2180 return -1;
2181 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP "
2182 "handle %p", bss->nl_mgmt);
2183
2184 if (drv->nlmode == NL80211_IFTYPE_ADHOC ||
2185 ((drv->capa.flags & WPA_DRIVER_FLAGS_SAE) &&
2186 !(drv->capa.flags & WPA_DRIVER_FLAGS_SME))) {
2187 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_AUTH << 4);
2188
2189 /* register for any AUTH message */
2190 nl80211_register_frame(bss, bss->nl_mgmt, type, NULL, 0);
2191 }
2192
2193 #ifdef CONFIG_INTERWORKING
2194 /* QoS Map Configure */
2195 if (nl80211_register_action_frame(bss, (u8 *) "\x01\x04", 2) < 0)
2196 ret = -1;
2197 #endif /* CONFIG_INTERWORKING */
2198 #if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING) || defined(CONFIG_DPP)
2199 /* GAS Initial Request */
2200 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0)
2201 ret = -1;
2202 /* GAS Initial Response */
2203 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0)
2204 ret = -1;
2205 /* GAS Comeback Request */
2206 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0)
2207 ret = -1;
2208 /* GAS Comeback Response */
2209 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0)
2210 ret = -1;
2211 /* Protected GAS Initial Request */
2212 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0a", 2) < 0)
2213 ret = -1;
2214 /* Protected GAS Initial Response */
2215 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0b", 2) < 0)
2216 ret = -1;
2217 /* Protected GAS Comeback Request */
2218 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0c", 2) < 0)
2219 ret = -1;
2220 /* Protected GAS Comeback Response */
2221 if (nl80211_register_action_frame(bss, (u8 *) "\x09\x0d", 2) < 0)
2222 ret = -1;
2223 #endif /* CONFIG_P2P || CONFIG_INTERWORKING || CONFIG_DPP */
2224 #ifdef CONFIG_P2P
2225 /* P2P Public Action */
2226 if (nl80211_register_action_frame(bss,
2227 (u8 *) "\x04\x09\x50\x6f\x9a\x09",
2228 6) < 0)
2229 ret = -1;
2230 /* P2P Action */
2231 if (nl80211_register_action_frame(bss,
2232 (u8 *) "\x7f\x50\x6f\x9a\x09",
2233 5) < 0)
2234 ret = -1;
2235 #endif /* CONFIG_P2P */
2236 #ifdef CONFIG_DPP
2237 /* DPP Public Action */
2238 if (nl80211_register_action_frame(bss,
2239 (u8 *) "\x04\x09\x50\x6f\x9a\x1a",
2240 6) < 0)
2241 ret = -1;
2242 #endif /* CONFIG_DPP */
2243 #ifdef CONFIG_OCV
2244 /* SA Query Request */
2245 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x00", 2) < 0)
2246 ret = -1;
2247 #endif /* CONFIG_OCV */
2248 /* SA Query Response */
2249 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0)
2250 ret = -1;
2251 #ifdef CONFIG_TDLS
2252 if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) {
2253 /* TDLS Discovery Response */
2254 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) <
2255 0)
2256 ret = -1;
2257 }
2258 #endif /* CONFIG_TDLS */
2259 #ifdef CONFIG_FST
2260 /* FST Action frames */
2261 if (nl80211_register_action_frame(bss, (u8 *) "\x12", 1) < 0)
2262 ret = -1;
2263 #endif /* CONFIG_FST */
2264
2265 /* FT Action frames */
2266 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0)
2267 ret = -1;
2268 else
2269 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT |
2270 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK;
2271
2272 /* WNM - BSS Transition Management Request */
2273 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0)
2274 ret = -1;
2275 /* WNM-Sleep Mode Response */
2276 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x11", 2) < 0)
2277 ret = -1;
2278 #ifdef CONFIG_WNM
2279 /* WNM - Collocated Interference Request */
2280 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x0b", 2) < 0)
2281 ret = -1;
2282 #endif /* CONFIG_WNM */
2283
2284 #ifdef CONFIG_HS20
2285 /* WNM-Notification */
2286 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x1a", 2) < 0)
2287 ret = -1;
2288 #endif /* CONFIG_HS20 */
2289
2290 /* WMM-AC ADDTS Response */
2291 if (nl80211_register_action_frame(bss, (u8 *) "\x11\x01", 2) < 0)
2292 ret = -1;
2293
2294 /* WMM-AC DELTS */
2295 if (nl80211_register_action_frame(bss, (u8 *) "\x11\x02", 2) < 0)
2296 ret = -1;
2297
2298 /* Radio Measurement - Neighbor Report Response */
2299 if (nl80211_register_action_frame(bss, (u8 *) "\x05\x05", 2) < 0)
2300 ret = -1;
2301
2302 /* Radio Measurement - Radio Measurement Request */
2303 if (nl80211_register_action_frame(bss, (u8 *) "\x05\x00", 2) < 0)
2304 ret = -1;
2305
2306 /* Radio Measurement - Link Measurement Request */
2307 if ((drv->capa.rrm_flags & WPA_DRIVER_FLAGS_TX_POWER_INSERTION) &&
2308 (nl80211_register_action_frame(bss, (u8 *) "\x05\x02", 2) < 0))
2309 ret = -1;
2310
2311 nl80211_mgmt_handle_register_eloop(bss);
2312
2313 return ret;
2314 }
2315
2316
2317 static int nl80211_mgmt_subscribe_mesh(struct i802_bss *bss)
2318 {
2319 int ret = 0;
2320
2321 if (nl80211_alloc_mgmt_handle(bss))
2322 return -1;
2323
2324 wpa_printf(MSG_DEBUG,
2325 "nl80211: Subscribe to mgmt frames with mesh handle %p",
2326 bss->nl_mgmt);
2327
2328 /* Auth frames for mesh SAE */
2329 if (nl80211_register_frame(bss, bss->nl_mgmt,
2330 (WLAN_FC_TYPE_MGMT << 2) |
2331 (WLAN_FC_STYPE_AUTH << 4),
2332 NULL, 0) < 0)
2333 ret = -1;
2334
2335 /* Mesh peering open */
2336 if (nl80211_register_action_frame(bss, (u8 *) "\x0f\x01", 2) < 0)
2337 ret = -1;
2338 /* Mesh peering confirm */
2339 if (nl80211_register_action_frame(bss, (u8 *) "\x0f\x02", 2) < 0)
2340 ret = -1;
2341 /* Mesh peering close */
2342 if (nl80211_register_action_frame(bss, (u8 *) "\x0f\x03", 2) < 0)
2343 ret = -1;
2344
2345 nl80211_mgmt_handle_register_eloop(bss);
2346
2347 return ret;
2348 }
2349
2350
2351 static int nl80211_register_spurious_class3(struct i802_bss *bss)
2352 {
2353 struct nl_msg *msg;
2354 int ret;
2355
2356 msg = nl80211_bss_msg(bss, 0, NL80211_CMD_UNEXPECTED_FRAME);
2357 ret = send_and_recv(bss->drv->global, bss->nl_mgmt, msg, NULL, NULL);
2358 if (ret) {
2359 wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 "
2360 "failed: ret=%d (%s)",
2361 ret, strerror(-ret));
2362 }
2363 return ret;
2364 }
2365
2366
2367 static int nl80211_action_subscribe_ap(struct i802_bss *bss)
2368 {
2369 int ret = 0;
2370
2371 /* Public Action frames */
2372 if (nl80211_register_action_frame(bss, (u8 *) "\x04", 1) < 0)
2373 ret = -1;
2374 /* RRM Measurement Report */
2375 if (nl80211_register_action_frame(bss, (u8 *) "\x05\x01", 2) < 0)
2376 ret = -1;
2377 /* RRM Link Measurement Report */
2378 if (nl80211_register_action_frame(bss, (u8 *) "\x05\x03", 2) < 0)
2379 ret = -1;
2380 /* RRM Neighbor Report Request */
2381 if (nl80211_register_action_frame(bss, (u8 *) "\x05\x04", 2) < 0)
2382 ret = -1;
2383 /* FT Action frames */
2384 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0)
2385 ret = -1;
2386 /* SA Query */
2387 if (nl80211_register_action_frame(bss, (u8 *) "\x08", 1) < 0)
2388 ret = -1;
2389 /* Protected Dual of Public Action */
2390 if (nl80211_register_action_frame(bss, (u8 *) "\x09", 1) < 0)
2391 ret = -1;
2392 /* WNM */
2393 if (nl80211_register_action_frame(bss, (u8 *) "\x0a", 1) < 0)
2394 ret = -1;
2395 /* WMM */
2396 if (nl80211_register_action_frame(bss, (u8 *) "\x11", 1) < 0)
2397 ret = -1;
2398 #ifdef CONFIG_FST
2399 /* FST Action frames */
2400 if (nl80211_register_action_frame(bss, (u8 *) "\x12", 1) < 0)
2401 ret = -1;
2402 #endif /* CONFIG_FST */
2403 /* Vendor-specific */
2404 if (nl80211_register_action_frame(bss, (u8 *) "\x7f", 1) < 0)
2405 ret = -1;
2406
2407 return ret;
2408 }
2409
2410
2411 static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss)
2412 {
2413 static const int stypes[] = {
2414 WLAN_FC_STYPE_AUTH,
2415 WLAN_FC_STYPE_ASSOC_REQ,
2416 WLAN_FC_STYPE_REASSOC_REQ,
2417 WLAN_FC_STYPE_DISASSOC,
2418 WLAN_FC_STYPE_DEAUTH,
2419 WLAN_FC_STYPE_PROBE_REQ,
2420 /* Beacon doesn't work as mac80211 doesn't currently allow
2421 * it, but it wouldn't really be the right thing anyway as
2422 * it isn't per interface ... maybe just dump the scan
2423 * results periodically for OLBC?
2424 */
2425 /* WLAN_FC_STYPE_BEACON, */
2426 };
2427 unsigned int i;
2428
2429 if (nl80211_alloc_mgmt_handle(bss))
2430 return -1;
2431 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP "
2432 "handle %p", bss->nl_mgmt);
2433
2434 for (i = 0; i < ARRAY_SIZE(stypes); i++) {
2435 if (nl80211_register_frame(bss, bss->nl_mgmt,
2436 (WLAN_FC_TYPE_MGMT << 2) |
2437 (stypes[i] << 4),
2438 NULL, 0) < 0) {
2439 goto out_err;
2440 }
2441 }
2442
2443 if (nl80211_action_subscribe_ap(bss))
2444 goto out_err;
2445
2446 if (nl80211_register_spurious_class3(bss))
2447 goto out_err;
2448
2449 nl80211_mgmt_handle_register_eloop(bss);
2450 return 0;
2451
2452 out_err:
2453 nl_destroy_handles(&bss->nl_mgmt);
2454 return -1;
2455 }
2456
2457
2458 static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss)
2459 {
2460 if (nl80211_alloc_mgmt_handle(bss))
2461 return -1;
2462 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP "
2463 "handle %p (device SME)", bss->nl_mgmt);
2464
2465 if (nl80211_action_subscribe_ap(bss))
2466 goto out_err;
2467
2468 if (bss->drv->device_ap_sme) {
2469 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_AUTH << 4);
2470
2471 /* Register for all Authentication frames */
2472 if (nl80211_register_frame(bss, bss->nl_mgmt, type, NULL, 0)
2473 < 0)
2474 wpa_printf(MSG_DEBUG,
2475 "nl80211: Failed to subscribe to handle Authentication frames - SAE offload may not work");
2476 }
2477
2478 nl80211_mgmt_handle_register_eloop(bss);
2479 return 0;
2480
2481 out_err:
2482 nl_destroy_handles(&bss->nl_mgmt);
2483 return -1;
2484 }
2485
2486
2487 static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason)
2488 {
2489 if (bss->nl_mgmt == NULL)
2490 return;
2491 wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p "
2492 "(%s)", bss->nl_mgmt, reason);
2493 nl80211_destroy_eloop_handle(&bss->nl_mgmt, 0);
2494
2495 nl80211_put_wiphy_data_ap(bss);
2496 }
2497
2498
2499 static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx)
2500 {
2501 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL);
2502 }
2503
2504
2505 static void nl80211_del_p2pdev(struct i802_bss *bss)
2506 {
2507 struct nl_msg *msg;
2508 int ret;
2509
2510 msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_DEL_INTERFACE);
2511 ret = send_and_recv_msgs(bss->drv, msg, NULL, NULL);
2512
2513 wpa_printf(MSG_DEBUG, "nl80211: Delete P2P Device %s (0x%llx): %s",
2514 bss->ifname, (long long unsigned int) bss->wdev_id,
2515 strerror(-ret));
2516 }
2517
2518
2519 static int nl80211_set_p2pdev(struct i802_bss *bss, int start)
2520 {
2521 struct nl_msg *msg;
2522 int ret;
2523
2524 msg = nl80211_cmd_msg(bss, 0, start ? NL80211_CMD_START_P2P_DEVICE :
2525 NL80211_CMD_STOP_P2P_DEVICE);
2526 ret = send_and_recv_msgs(bss->drv, msg, NULL, NULL);
2527
2528 wpa_printf(MSG_DEBUG, "nl80211: %s P2P Device %s (0x%llx): %s",
2529 start ? "Start" : "Stop",
2530 bss->ifname, (long long unsigned int) bss->wdev_id,
2531 strerror(-ret));
2532 return ret;
2533 }
2534
2535
2536 static int i802_set_iface_flags(struct i802_bss *bss, int up)
2537 {
2538 enum nl80211_iftype nlmode;
2539
2540 nlmode = nl80211_get_ifmode(bss);
2541 if (nlmode != NL80211_IFTYPE_P2P_DEVICE) {
2542 return linux_set_iface_flags(bss->drv->global->ioctl_sock,
2543 bss->ifname, up);
2544 }
2545
2546 /* P2P Device has start/stop which is equivalent */
2547 return nl80211_set_p2pdev(bss, up);
2548 }
2549
2550
2551 #ifdef CONFIG_TESTING_OPTIONS
2552 static int qca_vendor_test_cmd_handler(struct nl_msg *msg, void *arg)
2553 {
2554 /* struct wpa_driver_nl80211_data *drv = arg; */
2555 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2556 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2557
2558
2559 wpa_printf(MSG_DEBUG,
2560 "nl80211: QCA vendor test command response received");
2561
2562 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2563 genlmsg_attrlen(gnlh, 0), NULL);
2564 if (!tb[NL80211_ATTR_VENDOR_DATA]) {
2565 wpa_printf(MSG_DEBUG, "nl80211: No vendor data attribute");
2566 return NL_SKIP;
2567 }
2568
2569 wpa_hexdump(MSG_DEBUG,
2570 "nl80211: Received QCA vendor test command response",
2571 nla_data(tb[NL80211_ATTR_VENDOR_DATA]),
2572 nla_len(tb[NL80211_ATTR_VENDOR_DATA]));
2573
2574 return NL_SKIP;
2575 }
2576 #endif /* CONFIG_TESTING_OPTIONS */
2577
2578
2579 static void qca_vendor_test(struct wpa_driver_nl80211_data *drv)
2580 {
2581 #ifdef CONFIG_TESTING_OPTIONS
2582 struct nl_msg *msg;
2583 struct nlattr *params;
2584 int ret;
2585
2586 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
2587 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
2588 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
2589 QCA_NL80211_VENDOR_SUBCMD_TEST) ||
2590 !(params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) ||
2591 nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_TEST, 123)) {
2592 nlmsg_free(msg);
2593 return;
2594 }
2595 nla_nest_end(msg, params);
2596
2597 ret = send_and_recv_msgs(drv, msg, qca_vendor_test_cmd_handler, drv);
2598 wpa_printf(MSG_DEBUG,
2599 "nl80211: QCA vendor test command returned %d (%s)",
2600 ret, strerror(-ret));
2601 #endif /* CONFIG_TESTING_OPTIONS */
2602 }
2603
2604
2605 static int
2606 wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv,
2607 const u8 *set_addr, int first,
2608 const char *driver_params)
2609 {
2610 struct i802_bss *bss = drv->first_bss;
2611 int send_rfkill_event = 0;
2612 enum nl80211_iftype nlmode;
2613
2614 drv->ifindex = if_nametoindex(bss->ifname);
2615 bss->ifindex = drv->ifindex;
2616 bss->wdev_id = drv->global->if_add_wdevid;
2617 bss->wdev_id_set = drv->global->if_add_wdevid_set;
2618
2619 bss->if_dynamic = drv->ifindex == drv->global->if_add_ifindex;
2620 bss->if_dynamic = bss->if_dynamic || drv->global->if_add_wdevid_set;
2621 drv->global->if_add_wdevid_set = 0;
2622
2623 if (!bss->if_dynamic && nl80211_get_ifmode(bss) == NL80211_IFTYPE_AP)
2624 bss->static_ap = 1;
2625
2626 if (first &&
2627 nl80211_get_ifmode(bss) != NL80211_IFTYPE_P2P_DEVICE &&
2628 linux_iface_up(drv->global->ioctl_sock, bss->ifname) > 0)
2629 drv->start_iface_up = 1;
2630
2631 if (wpa_driver_nl80211_capa(drv))
2632 return -1;
2633
2634 if (driver_params && nl80211_set_param(bss, driver_params) < 0)
2635 return -1;
2636
2637 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s",
2638 bss->ifname, drv->phyname);
2639
2640 if (set_addr &&
2641 (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0) ||
2642 linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
2643 set_addr)))
2644 return -1;
2645
2646 if (first && nl80211_get_ifmode(bss) == NL80211_IFTYPE_AP)
2647 drv->start_mode_ap = 1;
2648
2649 if (drv->hostapd || bss->static_ap)
2650 nlmode = NL80211_IFTYPE_AP;
2651 else if (bss->if_dynamic ||
2652 nl80211_get_ifmode(bss) == NL80211_IFTYPE_MESH_POINT)
2653 nlmode = nl80211_get_ifmode(bss);
2654 else
2655 nlmode = NL80211_IFTYPE_STATION;
2656
2657 if (wpa_driver_nl80211_set_mode(bss, nlmode) < 0) {
2658 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver mode");
2659 return -1;
2660 }
2661
2662 if (nlmode == NL80211_IFTYPE_P2P_DEVICE)
2663 nl80211_get_macaddr(bss);
2664
2665 wpa_driver_nl80211_drv_init_rfkill(drv);
2666
2667 if (!rfkill_is_blocked(drv->rfkill)) {
2668 int ret = i802_set_iface_flags(bss, 1);
2669 if (ret) {
2670 wpa_printf(MSG_ERROR, "nl80211: Could not set "
2671 "interface '%s' UP", bss->ifname);
2672 return ret;
2673 }
2674
2675 if (is_p2p_net_interface(nlmode))
2676 nl80211_disable_11b_rates(bss->drv,
2677 bss->drv->ifindex, 1);
2678
2679 if (nlmode == NL80211_IFTYPE_P2P_DEVICE)
2680 return ret;
2681 } else {
2682 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable "
2683 "interface '%s' due to rfkill", bss->ifname);
2684 if (nlmode != NL80211_IFTYPE_P2P_DEVICE)
2685 drv->if_disabled = 1;
2686
2687 send_rfkill_event = 1;
2688 }
2689
2690 if (!drv->hostapd && nlmode != NL80211_IFTYPE_P2P_DEVICE)
2691 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex,
2692 1, IF_OPER_DORMANT);
2693
2694 if (nlmode != NL80211_IFTYPE_P2P_DEVICE) {
2695 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
2696 bss->addr))
2697 return -1;
2698 os_memcpy(drv->perm_addr, bss->addr, ETH_ALEN);
2699 }
2700
2701 if (send_rfkill_event) {
2702 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill,
2703 drv, drv->ctx);
2704 }
2705
2706 if (drv->vendor_cmd_test_avail)
2707 qca_vendor_test(drv);
2708
2709 nl80211_init_connect_handle(bss);
2710
2711 return 0;
2712 }
2713
2714
2715 static int wpa_driver_nl80211_del_beacon(struct i802_bss *bss)
2716 {
2717 struct nl_msg *msg;
2718 struct wpa_driver_nl80211_data *drv = bss->drv;
2719
2720 wpa_printf(MSG_DEBUG, "nl80211: Remove beacon (ifindex=%d)",
2721 drv->ifindex);
2722 nl80211_put_wiphy_data_ap(bss);
2723 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_DEL_BEACON);
2724 return send_and_recv_msgs(drv, msg, NULL, NULL);
2725 }
2726
2727
2728 /**
2729 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface
2730 * @bss: Pointer to private nl80211 data from wpa_driver_nl80211_init()
2731 *
2732 * Shut down driver interface and processing of driver events. Free
2733 * private data buffer if one was allocated in wpa_driver_nl80211_init().
2734 */
2735 static void wpa_driver_nl80211_deinit(struct i802_bss *bss)
2736 {
2737 struct wpa_driver_nl80211_data *drv = bss->drv;
2738 unsigned int i;
2739
2740 wpa_printf(MSG_INFO, "nl80211: deinit ifname=%s disabled_11b_rates=%d",
2741 bss->ifname, drv->disabled_11b_rates);
2742
2743 bss->in_deinit = 1;
2744 if (drv->data_tx_status)
2745 eloop_unregister_read_sock(drv->eapol_tx_sock);
2746 if (drv->eapol_tx_sock >= 0)
2747 close(drv->eapol_tx_sock);
2748
2749 if (bss->nl_preq)
2750 wpa_driver_nl80211_probe_req_report(bss, 0);
2751 if (bss->added_if_into_bridge) {
2752 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname,
2753 bss->ifname) < 0)
2754 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
2755 "interface %s from bridge %s: %s",
2756 bss->ifname, bss->brname, strerror(errno));
2757 }
2758
2759 if (drv->rtnl_sk)
2760 nl80211_handle_destroy(drv->rtnl_sk);
2761
2762 if (bss->added_bridge) {
2763 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->brname,
2764 0) < 0)
2765 wpa_printf(MSG_INFO,
2766 "nl80211: Could not set bridge %s down",
2767 bss->brname);
2768 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0)
2769 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
2770 "bridge %s: %s",
2771 bss->brname, strerror(errno));
2772 }
2773
2774 nl80211_remove_monitor_interface(drv);
2775
2776 if (is_ap_interface(drv->nlmode))
2777 wpa_driver_nl80211_del_beacon(bss);
2778
2779 if (drv->eapol_sock >= 0) {
2780 eloop_unregister_read_sock(drv->eapol_sock);
2781 close(drv->eapol_sock);
2782 }
2783
2784 if (drv->if_indices != drv->default_if_indices)
2785 os_free(drv->if_indices);
2786
2787 if (drv->disabled_11b_rates)
2788 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
2789
2790 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0,
2791 IF_OPER_UP);
2792 eloop_cancel_timeout(wpa_driver_nl80211_send_rfkill, drv, drv->ctx);
2793 rfkill_deinit(drv->rfkill);
2794
2795 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
2796
2797 if (!drv->start_iface_up)
2798 (void) i802_set_iface_flags(bss, 0);
2799
2800 if (drv->addr_changed) {
2801 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname,
2802 0) < 0) {
2803 wpa_printf(MSG_DEBUG,
2804 "nl80211: Could not set interface down to restore permanent MAC address");
2805 }
2806 if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
2807 drv->perm_addr) < 0) {
2808 wpa_printf(MSG_DEBUG,
2809 "nl80211: Could not restore permanent MAC address");
2810 }
2811 }
2812
2813 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) {
2814 if (!drv->hostapd || !drv->start_mode_ap)
2815 wpa_driver_nl80211_set_mode(bss,
2816 NL80211_IFTYPE_STATION);
2817 nl80211_mgmt_unsubscribe(bss, "deinit");
2818 } else {
2819 nl80211_mgmt_unsubscribe(bss, "deinit");
2820 nl80211_del_p2pdev(bss);
2821 }
2822
2823 if (bss->nl_connect)
2824 nl80211_destroy_eloop_handle(&bss->nl_connect, 1);
2825
2826 nl80211_destroy_bss(drv->first_bss);
2827
2828 os_free(drv->filter_ssids);
2829
2830 os_free(drv->auth_ie);
2831
2832 if (drv->in_interface_list)
2833 dl_list_del(&drv->list);
2834
2835 os_free(drv->extended_capa);
2836 os_free(drv->extended_capa_mask);
2837 for (i = 0; i < drv->num_iface_ext_capa; i++) {
2838 os_free(drv->iface_ext_capa[i].ext_capa);
2839 os_free(drv->iface_ext_capa[i].ext_capa_mask);
2840 }
2841 os_free(drv->first_bss);
2842 os_free(drv);
2843 }
2844
2845
2846 static u32 wpa_alg_to_cipher_suite(enum wpa_alg alg, size_t key_len)
2847 {
2848 switch (alg) {
2849 case WPA_ALG_WEP:
2850 if (key_len == 5)
2851 return RSN_CIPHER_SUITE_WEP40;
2852 return RSN_CIPHER_SUITE_WEP104;
2853 case WPA_ALG_TKIP:
2854 return RSN_CIPHER_SUITE_TKIP;
2855 case WPA_ALG_CCMP:
2856 return RSN_CIPHER_SUITE_CCMP;
2857 case WPA_ALG_GCMP:
2858 return RSN_CIPHER_SUITE_GCMP;
2859 case WPA_ALG_CCMP_256:
2860 return RSN_CIPHER_SUITE_CCMP_256;
2861 case WPA_ALG_GCMP_256:
2862 return RSN_CIPHER_SUITE_GCMP_256;
2863 case WPA_ALG_IGTK:
2864 return RSN_CIPHER_SUITE_AES_128_CMAC;
2865 case WPA_ALG_BIP_GMAC_128:
2866 return RSN_CIPHER_SUITE_BIP_GMAC_128;
2867 case WPA_ALG_BIP_GMAC_256:
2868 return RSN_CIPHER_SUITE_BIP_GMAC_256;
2869 case WPA_ALG_BIP_CMAC_256:
2870 return RSN_CIPHER_SUITE_BIP_CMAC_256;
2871 case WPA_ALG_SMS4:
2872 return RSN_CIPHER_SUITE_SMS4;
2873 case WPA_ALG_KRK:
2874 return RSN_CIPHER_SUITE_KRK;
2875 case WPA_ALG_NONE:
2876 case WPA_ALG_PMK:
2877 wpa_printf(MSG_ERROR, "nl80211: Unexpected encryption algorithm %d",
2878 alg);
2879 return 0;
2880 }
2881
2882 wpa_printf(MSG_ERROR, "nl80211: Unsupported encryption algorithm %d",
2883 alg);
2884 return 0;
2885 }
2886
2887
2888 static u32 wpa_cipher_to_cipher_suite(unsigned int cipher)
2889 {
2890 switch (cipher) {
2891 case WPA_CIPHER_CCMP_256:
2892 return RSN_CIPHER_SUITE_CCMP_256;
2893 case WPA_CIPHER_GCMP_256:
2894 return RSN_CIPHER_SUITE_GCMP_256;
2895 case WPA_CIPHER_CCMP:
2896 return RSN_CIPHER_SUITE_CCMP;
2897 case WPA_CIPHER_GCMP:
2898 return RSN_CIPHER_SUITE_GCMP;
2899 case WPA_CIPHER_TKIP:
2900 return RSN_CIPHER_SUITE_TKIP;
2901 case WPA_CIPHER_WEP104:
2902 return RSN_CIPHER_SUITE_WEP104;
2903 case WPA_CIPHER_WEP40:
2904 return RSN_CIPHER_SUITE_WEP40;
2905 case WPA_CIPHER_GTK_NOT_USED:
2906 return RSN_CIPHER_SUITE_NO_GROUP_ADDRESSED;
2907 }
2908
2909 return 0;
2910 }
2911
2912
2913 static int wpa_cipher_to_cipher_suites(unsigned int ciphers, u32 suites[],
2914 int max_suites)
2915 {
2916 int num_suites = 0;
2917
2918 if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP_256)
2919 suites[num_suites++] = RSN_CIPHER_SUITE_CCMP_256;
2920 if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP_256)
2921 suites[num_suites++] = RSN_CIPHER_SUITE_GCMP_256;
2922 if (num_suites < max_suites && ciphers & WPA_CIPHER_CCMP)
2923 suites[num_suites++] = RSN_CIPHER_SUITE_CCMP;
2924 if (num_suites < max_suites && ciphers & WPA_CIPHER_GCMP)
2925 suites[num_suites++] = RSN_CIPHER_SUITE_GCMP;
2926 if (num_suites < max_suites && ciphers & WPA_CIPHER_TKIP)
2927 suites[num_suites++] = RSN_CIPHER_SUITE_TKIP;
2928 if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP104)
2929 suites[num_suites++] = RSN_CIPHER_SUITE_WEP104;
2930 if (num_suites < max_suites && ciphers & WPA_CIPHER_WEP40)
2931 suites[num_suites++] = RSN_CIPHER_SUITE_WEP40;
2932
2933 return num_suites;
2934 }
2935
2936
2937 #ifdef CONFIG_DRIVER_NL80211_QCA
2938 static int issue_key_mgmt_set_key(struct wpa_driver_nl80211_data *drv,
2939 const u8 *key, size_t key_len)
2940 {
2941 struct nl_msg *msg;
2942 int ret;
2943
2944 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_KEY_MGMT_OFFLOAD))
2945 return 0;
2946
2947 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
2948 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
2949 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
2950 QCA_NL80211_VENDOR_SUBCMD_KEY_MGMT_SET_KEY) ||
2951 nla_put(msg, NL80211_ATTR_VENDOR_DATA, key_len, key)) {
2952 nl80211_nlmsg_clear(msg);
2953 nlmsg_free(msg);
2954 return -1;
2955 }
2956 ret = send_and_recv_msgs(drv, msg, NULL, (void *) -1);
2957 if (ret) {
2958 wpa_printf(MSG_DEBUG,
2959 "nl80211: Key management set key failed: ret=%d (%s)",
2960 ret, strerror(-ret));
2961 }
2962
2963 return ret;
2964 }
2965 #endif /* CONFIG_DRIVER_NL80211_QCA */
2966
2967
2968 static int nl80211_set_pmk(struct wpa_driver_nl80211_data *drv,
2969 const u8 *key, size_t key_len,
2970 const u8 *addr)
2971 {
2972 struct nl_msg *msg = NULL;
2973 int ret;
2974
2975 /*
2976 * If the authenticator address is not set, assume it is
2977 * the current BSSID.
2978 */
2979 if (!addr && drv->associated)
2980 addr = drv->bssid;
2981 else if (!addr)
2982 return -1;
2983
2984 wpa_printf(MSG_DEBUG, "nl80211: Set PMK to the driver for " MACSTR,
2985 MAC2STR(addr));
2986 wpa_hexdump_key(MSG_DEBUG, "nl80211: PMK", key, key_len);
2987 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_SET_PMK);
2988 if (!msg ||
2989 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
2990 nla_put(msg, NL80211_ATTR_PMK, key_len, key)) {
2991 nl80211_nlmsg_clear(msg);
2992 nlmsg_free(msg);
2993 return -ENOBUFS;
2994 }
2995
2996 ret = send_and_recv_msgs(drv, msg, NULL, (void *) -1);
2997 if (ret) {
2998 wpa_printf(MSG_DEBUG, "nl80211: Set PMK failed: ret=%d (%s)",
2999 ret, strerror(-ret));
3000 }
3001
3002 return ret;
3003 }
3004
3005
3006 static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss,
3007 enum wpa_alg alg, const u8 *addr,
3008 int key_idx, int set_tx,
3009 const u8 *seq, size_t seq_len,
3010 const u8 *key, size_t key_len)
3011 {
3012 struct wpa_driver_nl80211_data *drv = bss->drv;
3013 int ifindex;
3014 struct nl_msg *msg;
3015 struct nl_msg *key_msg;
3016 int ret;
3017 int tdls = 0;
3018
3019 /* Ignore for P2P Device */
3020 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE)
3021 return 0;
3022
3023 ifindex = if_nametoindex(ifname);
3024 wpa_printf(MSG_DEBUG, "%s: ifindex=%d (%s) alg=%d addr=%p key_idx=%d "
3025 "set_tx=%d seq_len=%lu key_len=%lu",
3026 __func__, ifindex, ifname, alg, addr, key_idx, set_tx,
3027 (unsigned long) seq_len, (unsigned long) key_len);
3028 #ifdef CONFIG_TDLS
3029 if (key_idx == -1) {
3030 key_idx = 0;
3031 tdls = 1;
3032 }
3033 #endif /* CONFIG_TDLS */
3034
3035 #ifdef CONFIG_DRIVER_NL80211_QCA
3036 if (alg == WPA_ALG_PMK &&
3037 (drv->capa.flags & WPA_DRIVER_FLAGS_KEY_MGMT_OFFLOAD)) {
3038 wpa_printf(MSG_DEBUG, "%s: calling issue_key_mgmt_set_key",
3039 __func__);
3040 ret = issue_key_mgmt_set_key(drv, key, key_len);
3041 return ret;
3042 }
3043 #endif /* CONFIG_DRIVER_NL80211_QCA */
3044
3045 if (alg == WPA_ALG_PMK &&
3046 (drv->capa.flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_8021X))
3047 return nl80211_set_pmk(drv, key, key_len, addr);
3048
3049 key_msg = nlmsg_alloc();
3050 if (!key_msg)
3051 return -ENOBUFS;
3052
3053 if (alg == WPA_ALG_NONE) {
3054 msg = nl80211_ifindex_msg(drv, ifindex, 0, NL80211_CMD_DEL_KEY);
3055 if (!msg)
3056 goto fail2;
3057 } else {
3058 u32 suite;
3059
3060 suite = wpa_alg_to_cipher_suite(alg, key_len);
3061 if (!suite)
3062 goto fail2;
3063 msg = nl80211_ifindex_msg(drv, ifindex, 0, NL80211_CMD_NEW_KEY);
3064 if (!msg)
3065 goto fail2;
3066 if (nla_put(key_msg, NL80211_KEY_DATA, key_len, key) ||
3067 nla_put_u32(key_msg, NL80211_KEY_CIPHER, suite))
3068 goto fail;
3069 wpa_hexdump_key(MSG_DEBUG, "nl80211: KEY_DATA", key, key_len);
3070 }
3071
3072 if (seq && seq_len) {
3073 if (nla_put(key_msg, NL80211_KEY_SEQ, seq_len, seq))
3074 goto fail;
3075 wpa_hexdump(MSG_DEBUG, "nl80211: KEY_SEQ", seq, seq_len);
3076 }
3077
3078 if (addr && !is_broadcast_ether_addr(addr)) {
3079 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr));
3080 if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
3081 goto fail;
3082
3083 if (alg != WPA_ALG_WEP && key_idx && !set_tx) {
3084 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK");
3085 if (nla_put_u32(key_msg, NL80211_KEY_TYPE,
3086 NL80211_KEYTYPE_GROUP))
3087 goto fail;
3088 }
3089 } else if (addr && is_broadcast_ether_addr(addr)) {
3090 struct nlattr *types;
3091
3092 wpa_printf(MSG_DEBUG, " broadcast key");
3093
3094 types = nla_nest_start(key_msg, NL80211_KEY_DEFAULT_TYPES);
3095 if (!types ||
3096 nla_put_flag(key_msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST))
3097 goto fail;
3098 nla_nest_end(key_msg, types);
3099 }
3100 if (nla_put_u8(key_msg, NL80211_KEY_IDX, key_idx) ||
3101 nla_put_nested(msg, NL80211_ATTR_KEY, key_msg))
3102 goto fail;
3103 nl80211_nlmsg_clear(key_msg);
3104 nlmsg_free(key_msg);
3105 key_msg = NULL;
3106
3107 ret = send_and_recv_msgs(drv, msg, NULL, key ? (void *) -1 : NULL);
3108 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE)
3109 ret = 0;
3110 if (ret)
3111 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)",
3112 ret, strerror(-ret));
3113
3114 /*
3115 * If we failed or don't need to set the default TX key (below),
3116 * we're done here.
3117 */
3118 if (ret || !set_tx || alg == WPA_ALG_NONE || tdls)
3119 return ret;
3120 if (is_ap_interface(drv->nlmode) && addr &&
3121 !is_broadcast_ether_addr(addr))
3122 return ret;
3123
3124 key_msg = nlmsg_alloc();
3125 if (!key_msg)
3126 return -ENOBUFS;
3127
3128 msg = nl80211_ifindex_msg(drv, ifindex, 0, NL80211_CMD_SET_KEY);
3129 if (!msg)
3130 goto fail2;
3131 if (!key_msg ||
3132 nla_put_u8(key_msg, NL80211_KEY_IDX, key_idx) ||
3133 nla_put_flag(key_msg, (alg == WPA_ALG_IGTK ||
3134 alg == WPA_ALG_BIP_GMAC_128 ||
3135 alg == WPA_ALG_BIP_GMAC_256 ||
3136 alg == WPA_ALG_BIP_CMAC_256) ?
3137 NL80211_KEY_DEFAULT_MGMT :
3138 NL80211_KEY_DEFAULT))
3139 goto fail;
3140 if (addr && is_broadcast_ether_addr(addr)) {
3141 struct nlattr *types;
3142
3143 types = nla_nest_start(key_msg, NL80211_KEY_DEFAULT_TYPES);
3144 if (!types ||
3145 nla_put_flag(key_msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST))
3146 goto fail;
3147 nla_nest_end(key_msg, types);
3148 } else if (addr) {
3149 struct nlattr *types;
3150
3151 types = nla_nest_start(key_msg, NL80211_KEY_DEFAULT_TYPES);
3152 if (!types ||
3153 nla_put_flag(key_msg, NL80211_KEY_DEFAULT_TYPE_UNICAST))
3154 goto fail;
3155 nla_nest_end(key_msg, types);
3156 }
3157
3158 if (nla_put_nested(msg, NL80211_ATTR_KEY, key_msg))
3159 goto fail;
3160 nl80211_nlmsg_clear(key_msg);
3161 nlmsg_free(key_msg);
3162 key_msg = NULL;
3163
3164 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3165 if (ret == -ENOENT)
3166 ret = 0;
3167 if (ret)
3168 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; "
3169 "err=%d %s)", ret, strerror(-ret));
3170 return ret;
3171
3172 fail:
3173 nl80211_nlmsg_clear(msg);
3174 nlmsg_free(msg);
3175 fail2:
3176 nl80211_nlmsg_clear(key_msg);
3177 nlmsg_free(key_msg);
3178 return -ENOBUFS;
3179 }
3180
3181
3182 static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg,
3183 int key_idx, int defkey,
3184 const u8 *seq, size_t seq_len,
3185 const u8 *key, size_t key_len)
3186 {
3187 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY);
3188 u32 suite;
3189
3190 if (!key_attr)
3191 return -1;
3192
3193 suite = wpa_alg_to_cipher_suite(alg, key_len);
3194 if (!suite)
3195 return -1;
3196
3197 if (defkey && alg == WPA_ALG_IGTK) {
3198 if (nla_put_flag(msg, NL80211_KEY_DEFAULT_MGMT))
3199 return -1;
3200 } else if (defkey) {
3201 if (nla_put_flag(msg, NL80211_KEY_DEFAULT))
3202 return -1;
3203 }
3204
3205 if (nla_put_u8(msg, NL80211_KEY_IDX, key_idx) ||
3206 nla_put_u32(msg, NL80211_KEY_CIPHER, suite) ||
3207 (seq && seq_len &&
3208 nla_put(msg, NL80211_KEY_SEQ, seq_len, seq)) ||
3209 nla_put(msg, NL80211_KEY_DATA, key_len, key))
3210 return -1;
3211
3212 nla_nest_end(msg, key_attr);
3213
3214 return 0;
3215 }
3216
3217
3218 static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params,
3219 struct nl_msg *msg)
3220 {
3221 int i, privacy = 0;
3222 struct nlattr *nl_keys, *nl_key;
3223
3224 for (i = 0; i < 4; i++) {
3225 if (!params->wep_key[i])
3226 continue;
3227 privacy = 1;
3228 break;
3229 }
3230 if (params->wps == WPS_MODE_PRIVACY)
3231 privacy = 1;
3232 if (params->pairwise_suite &&
3233 params->pairwise_suite != WPA_CIPHER_NONE)
3234 privacy = 1;
3235
3236 if (!privacy)
3237 return 0;
3238
3239 if (nla_put_flag(msg, NL80211_ATTR_PRIVACY))
3240 return -ENOBUFS;
3241
3242 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS);
3243 if (!nl_keys)
3244 return -ENOBUFS;
3245
3246 for (i = 0; i < 4; i++) {
3247 if (!params->wep_key[i])
3248 continue;
3249
3250 nl_key = nla_nest_start(msg, i);
3251 if (!nl_key ||
3252 nla_put(msg, NL80211_KEY_DATA, params->wep_key_len[i],
3253 params->wep_key[i]) ||
3254 nla_put_u32(msg, NL80211_KEY_CIPHER,
3255 params->wep_key_len[i] == 5 ?
3256 RSN_CIPHER_SUITE_WEP40 :
3257 RSN_CIPHER_SUITE_WEP104) ||
3258 nla_put_u8(msg, NL80211_KEY_IDX, i) ||
3259 (i == params->wep_tx_keyidx &&
3260 nla_put_flag(msg, NL80211_KEY_DEFAULT)))
3261 return -ENOBUFS;
3262
3263 nla_nest_end(msg, nl_key);
3264 }
3265 nla_nest_end(msg, nl_keys);
3266
3267 return 0;
3268 }
3269
3270
3271 int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
3272 const u8 *addr, int cmd, u16 reason_code,
3273 int local_state_change,
3274 struct nl_handle *nl_connect)
3275 {
3276 int ret;
3277 struct nl_msg *msg;
3278
3279 if (!(msg = nl80211_drv_msg(drv, 0, cmd)) ||
3280 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code) ||
3281 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
3282 (local_state_change &&
3283 nla_put_flag(msg, NL80211_ATTR_LOCAL_STATE_CHANGE))) {
3284 nlmsg_free(msg);
3285 return -1;
3286 }
3287
3288 if (nl_connect)
3289 ret = send_and_recv(drv->global, nl_connect, msg, NULL, NULL);
3290 else
3291 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3292 if (ret) {
3293 wpa_dbg(drv->ctx, MSG_DEBUG,
3294 "nl80211: MLME command failed: reason=%u ret=%d (%s)",
3295 reason_code, ret, strerror(-ret));
3296 }
3297 return ret;
3298 }
3299
3300
3301 static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv,
3302 u16 reason_code,
3303 struct nl_handle *nl_connect)
3304 {
3305 int ret;
3306 int drv_associated = drv->associated;
3307
3308 wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code);
3309 nl80211_mark_disconnected(drv);
3310 /* Disconnect command doesn't need BSSID - it uses cached value */
3311 ret = wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT,
3312 reason_code, 0, nl_connect);
3313 /*
3314 * For locally generated disconnect, supplicant already generates a
3315 * DEAUTH event, so ignore the event from NL80211.
3316 */
3317 drv->ignore_next_local_disconnect = drv_associated && (ret == 0);
3318
3319 return ret;
3320 }
3321
3322
3323 static int wpa_driver_nl80211_deauthenticate(struct i802_bss *bss,
3324 const u8 *addr, u16 reason_code)
3325 {
3326 struct wpa_driver_nl80211_data *drv = bss->drv;
3327 int ret;
3328 int drv_associated = drv->associated;
3329
3330 if (drv->nlmode == NL80211_IFTYPE_ADHOC) {
3331 nl80211_mark_disconnected(drv);
3332 return nl80211_leave_ibss(drv, 1);
3333 }
3334 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) {
3335 struct nl_handle *nl_connect = NULL;
3336
3337 if (bss->use_nl_connect)
3338 nl_connect = bss->nl_connect;
3339 return wpa_driver_nl80211_disconnect(drv, reason_code,
3340 nl_connect);
3341 }
3342 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)",
3343 __func__, MAC2STR(addr), reason_code);
3344 nl80211_mark_disconnected(drv);
3345 ret = wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE,
3346 reason_code, 0, NULL);
3347 /*
3348 * For locally generated deauthenticate, supplicant already generates a
3349 * DEAUTH event, so ignore the event from NL80211.
3350 */
3351 drv->ignore_next_local_deauth = drv_associated && (ret == 0);
3352
3353 return ret;
3354 }
3355
3356
3357 static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv,
3358 struct wpa_driver_auth_params *params)
3359 {
3360 int i;
3361
3362 drv->auth_freq = params->freq;
3363 drv->auth_alg = params->auth_alg;
3364 drv->auth_wep_tx_keyidx = params->wep_tx_keyidx;
3365 drv->auth_local_state_change = params->local_state_change;
3366 drv->auth_p2p = params->p2p;
3367
3368 if (params->bssid)
3369 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN);
3370 else
3371 os_memset(drv->auth_bssid_, 0, ETH_ALEN);
3372
3373 if (params->ssid) {
3374 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len);
3375 drv->auth_ssid_len = params->ssid_len;
3376 } else
3377 drv->auth_ssid_len = 0;
3378
3379
3380 os_free(drv->auth_ie);
3381 drv->auth_ie = NULL;
3382 drv->auth_ie_len = 0;
3383 if (params->ie) {
3384 drv->auth_ie = os_malloc(params->ie_len);
3385 if (drv->auth_ie) {
3386 os_memcpy(drv->auth_ie, params->ie, params->ie_len);
3387 drv->auth_ie_len = params->ie_len;
3388 }
3389 }
3390
3391 for (i = 0; i < 4; i++) {
3392 if (params->wep_key[i] && params->wep_key_len[i] &&
3393 params->wep_key_len[i] <= 16) {
3394 os_memcpy(drv->auth_wep_key[i], params->wep_key[i],
3395 params->wep_key_len[i]);
3396 drv->auth_wep_key_len[i] = params->wep_key_len[i];
3397 } else
3398 drv->auth_wep_key_len[i] = 0;
3399 }
3400 }
3401
3402
3403 static void nl80211_unmask_11b_rates(struct i802_bss *bss)
3404 {
3405 struct wpa_driver_nl80211_data *drv = bss->drv;
3406
3407 if (is_p2p_net_interface(drv->nlmode) || !drv->disabled_11b_rates)
3408 return;
3409
3410 /*
3411 * Looks like we failed to unmask 11b rates previously. This could
3412 * happen, e.g., if the interface was down at the point in time when a
3413 * P2P group was terminated.
3414 */
3415 wpa_printf(MSG_DEBUG,
3416 "nl80211: Interface %s mode is for non-P2P, but 11b rates were disabled - re-enable them",
3417 bss->ifname);
3418 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
3419 }
3420
3421
3422 static enum nl80211_auth_type get_nl_auth_type(int wpa_auth_alg)
3423 {
3424 if (wpa_auth_alg & WPA_AUTH_ALG_OPEN)
3425 return NL80211_AUTHTYPE_OPEN_SYSTEM;
3426 if (wpa_auth_alg & WPA_AUTH_ALG_SHARED)
3427 return NL80211_AUTHTYPE_SHARED_KEY;
3428 if (wpa_auth_alg & WPA_AUTH_ALG_LEAP)
3429 return NL80211_AUTHTYPE_NETWORK_EAP;
3430 if (wpa_auth_alg & WPA_AUTH_ALG_FT)
3431 return NL80211_AUTHTYPE_FT;
3432 if (wpa_auth_alg & WPA_AUTH_ALG_SAE)
3433 return NL80211_AUTHTYPE_SAE;
3434 if (wpa_auth_alg & WPA_AUTH_ALG_FILS)
3435 return NL80211_AUTHTYPE_FILS_SK;
3436 if (wpa_auth_alg & WPA_AUTH_ALG_FILS_SK_PFS)
3437 return NL80211_AUTHTYPE_FILS_SK_PFS;
3438
3439 return NL80211_AUTHTYPE_MAX;
3440 }
3441
3442
3443 static int wpa_driver_nl80211_authenticate(
3444 struct i802_bss *bss, struct wpa_driver_auth_params *params)
3445 {
3446 struct wpa_driver_nl80211_data *drv = bss->drv;
3447 int ret = -1, i;
3448 struct nl_msg *msg;
3449 enum nl80211_auth_type type;
3450 enum nl80211_iftype nlmode;
3451 int count = 0;
3452 int is_retry;
3453
3454 nl80211_unmask_11b_rates(bss);
3455
3456 is_retry = drv->retry_auth;
3457 drv->retry_auth = 0;
3458 drv->ignore_deauth_event = 0;
3459
3460 nl80211_mark_disconnected(drv);
3461 os_memset(drv->auth_bssid, 0, ETH_ALEN);
3462 if (params->bssid)
3463 os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN);
3464 else
3465 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN);
3466 /* FIX: IBSS mode */
3467 nlmode = params->p2p ?
3468 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
3469 if (drv->nlmode != nlmode &&
3470 wpa_driver_nl80211_set_mode(bss, nlmode) < 0)
3471 return -1;
3472
3473 retry:
3474 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)",
3475 drv->ifindex);
3476
3477 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_AUTHENTICATE);
3478 if (!msg)
3479 goto fail;
3480
3481 for (i = 0; i < 4; i++) {
3482 if (!params->wep_key[i])
3483 continue;
3484 wpa_driver_nl80211_set_key(bss->ifname, bss, WPA_ALG_WEP,
3485 NULL, i,
3486 i == params->wep_tx_keyidx, NULL, 0,
3487 params->wep_key[i],
3488 params->wep_key_len[i]);
3489 if (params->wep_tx_keyidx != i)
3490 continue;
3491 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0,
3492 params->wep_key[i], params->wep_key_len[i]))
3493 goto fail;
3494 }
3495
3496 if (params->bssid) {
3497 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
3498 MAC2STR(params->bssid));
3499 if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid))
3500 goto fail;
3501 }
3502 if (params->freq) {
3503 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
3504 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq))
3505 goto fail;
3506 }
3507 if (params->ssid) {
3508 wpa_printf(MSG_DEBUG, " * SSID=%s",
3509 wpa_ssid_txt(params->ssid, params->ssid_len));
3510 if (nla_put(msg, NL80211_ATTR_SSID, params->ssid_len,
3511 params->ssid))
3512 goto fail;
3513 }
3514 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len);
3515 if (params->ie &&
3516 nla_put(msg, NL80211_ATTR_IE, params->ie_len, params->ie))
3517 goto fail;
3518 if (params->auth_data) {
3519 wpa_hexdump(MSG_DEBUG, " * auth_data", params->auth_data,
3520 params->auth_data_len);
3521 if (nla_put(msg, NL80211_ATTR_SAE_DATA, params->auth_data_len,
3522 params->auth_data))
3523 goto fail;
3524 }
3525 type = get_nl_auth_type(params->auth_alg);
3526 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
3527 if (type == NL80211_AUTHTYPE_MAX ||
3528 nla_put_u32(msg, NL80211_ATTR_AUTH_TYPE, type))
3529 goto fail;
3530 if (params->local_state_change) {
3531 wpa_printf(MSG_DEBUG, " * Local state change only");
3532 if (nla_put_flag(msg, NL80211_ATTR_LOCAL_STATE_CHANGE))
3533 goto fail;
3534 }
3535
3536 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3537 msg = NULL;
3538 if (ret) {
3539 wpa_dbg(drv->ctx, MSG_DEBUG,
3540 "nl80211: MLME command failed (auth): count=%d ret=%d (%s)",
3541 count, ret, strerror(-ret));
3542 count++;
3543 if ((ret == -EALREADY || ret == -EEXIST) && count == 1 &&
3544 params->bssid && !params->local_state_change) {
3545 /*
3546 * mac80211 does not currently accept new
3547 * authentication if we are already authenticated. As a
3548 * workaround, force deauthentication and try again.
3549 */
3550 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication "
3551 "after forced deauthentication");
3552 drv->ignore_deauth_event = 1;
3553 wpa_driver_nl80211_deauthenticate(
3554 bss, params->bssid,
3555 WLAN_REASON_PREV_AUTH_NOT_VALID);
3556 nlmsg_free(msg);
3557 goto retry;
3558 }
3559
3560 if (ret == -ENOENT && params->freq && !is_retry) {
3561 /*
3562 * cfg80211 has likely expired the BSS entry even
3563 * though it was previously available in our internal
3564 * BSS table. To recover quickly, start a single
3565 * channel scan on the specified channel.
3566 */
3567 struct wpa_driver_scan_params scan;
3568 int freqs[2];
3569
3570 os_memset(&scan, 0, sizeof(scan));
3571 scan.num_ssids = 1;
3572 if (params->ssid) {
3573 scan.ssids[0].ssid = params->ssid;
3574 scan.ssids[0].ssid_len = params->ssid_len;
3575 }
3576 freqs[0] = params->freq;
3577 freqs[1] = 0;
3578 scan.freqs = freqs;
3579 wpa_printf(MSG_DEBUG, "nl80211: Trigger single "
3580 "channel scan to refresh cfg80211 BSS "
3581 "entry");
3582 ret = wpa_driver_nl80211_scan(bss, &scan);
3583 if (ret == 0) {
3584 nl80211_copy_auth_params(drv, params);
3585 drv->scan_for_auth = 1;
3586 }
3587 } else if (is_retry) {
3588 /*
3589 * Need to indicate this with an event since the return
3590 * value from the retry is not delivered to core code.
3591 */
3592 union wpa_event_data event;
3593 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry "
3594 "failed");
3595 os_memset(&event, 0, sizeof(event));
3596 os_memcpy(event.timeout_event.addr, drv->auth_bssid_,
3597 ETH_ALEN);
3598 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT,
3599 &event);
3600 }
3601 } else {
3602 wpa_printf(MSG_DEBUG,
3603 "nl80211: Authentication request send successfully");
3604 }
3605
3606 fail:
3607 nlmsg_free(msg);
3608 return ret;
3609 }
3610
3611
3612 int wpa_driver_nl80211_authenticate_retry(struct wpa_driver_nl80211_data *drv)
3613 {
3614 struct wpa_driver_auth_params params;
3615 struct i802_bss *bss = drv->first_bss;
3616 int i;
3617
3618 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again");
3619
3620 os_memset(&params, 0, sizeof(params));
3621 params.freq = drv->auth_freq;
3622 params.auth_alg = drv->auth_alg;
3623 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx;
3624 params.local_state_change = drv->auth_local_state_change;
3625 params.p2p = drv->auth_p2p;
3626
3627 if (!is_zero_ether_addr(drv->auth_bssid_))
3628 params.bssid = drv->auth_bssid_;
3629
3630 if (drv->auth_ssid_len) {
3631 params.ssid = drv->auth_ssid;
3632 params.ssid_len = drv->auth_ssid_len;
3633 }
3634
3635 params.ie = drv->auth_ie;
3636 params.ie_len = drv->auth_ie_len;
3637
3638 for (i = 0; i < 4; i++) {
3639 if (drv->auth_wep_key_len[i]) {
3640 params.wep_key[i] = drv->auth_wep_key[i];
3641 params.wep_key_len[i] = drv->auth_wep_key_len[i];
3642 }
3643 }
3644
3645 drv->retry_auth = 1;
3646 return wpa_driver_nl80211_authenticate(bss, &params);
3647 }
3648
3649
3650 static int wpa_driver_nl80211_send_frame(struct i802_bss *bss,
3651 const void *data, size_t len,
3652 int encrypt, int noack,
3653 unsigned int freq, int no_cck,
3654 int offchanok, unsigned int wait_time,
3655 const u16 *csa_offs,
3656 size_t csa_offs_len)
3657 {
3658 struct wpa_driver_nl80211_data *drv = bss->drv;
3659 u64 cookie;
3660 int res;
3661
3662 if (freq == 0 && drv->nlmode == NL80211_IFTYPE_ADHOC) {
3663 freq = nl80211_get_assoc_freq(drv);
3664 wpa_printf(MSG_DEBUG,
3665 "nl80211: send_frame - Use assoc_freq=%u for IBSS",
3666 freq);
3667 }
3668 if (freq == 0) {
3669 wpa_printf(MSG_DEBUG, "nl80211: send_frame - Use bss->freq=%u",
3670 bss->freq);
3671 freq = bss->freq;
3672 }
3673
3674 if (drv->use_monitor) {
3675 wpa_printf(MSG_DEBUG, "nl80211: send_frame(freq=%u bss->freq=%u) -> send_monitor",
3676 freq, bss->freq);
3677 return nl80211_send_monitor(drv, data, len, encrypt, noack);
3678 }
3679
3680 wpa_printf(MSG_DEBUG, "nl80211: send_frame -> send_frame_cmd");
3681 res = nl80211_send_frame_cmd(bss, freq, wait_time, data, len,
3682 &cookie, no_cck, noack, offchanok,
3683 csa_offs, csa_offs_len);
3684 if (res == 0 && !noack) {
3685 const struct ieee80211_mgmt *mgmt;
3686 u16 fc;
3687
3688 mgmt = (const struct ieee80211_mgmt *) data;
3689 fc = le_to_host16(mgmt->frame_control);
3690 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
3691 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_ACTION) {
3692 wpa_printf(MSG_MSGDUMP,
3693 "nl80211: Update send_action_cookie from 0x%llx to 0x%llx",
3694 (long long unsigned int)
3695 drv->send_action_cookie,
3696 (long long unsigned int) cookie);
3697 drv->send_action_cookie = cookie;
3698 }
3699 }
3700
3701 return res;
3702 }
3703
3704
3705 static int wpa_driver_nl80211_send_mlme(struct i802_bss *bss, const u8 *data,
3706 size_t data_len, int noack,
3707 unsigned int freq, int no_cck,
3708 int offchanok,
3709 unsigned int wait_time,
3710 const u16 *csa_offs,
3711 size_t csa_offs_len)
3712 {
3713 struct wpa_driver_nl80211_data *drv = bss->drv;
3714 struct ieee80211_mgmt *mgmt;
3715 int encrypt = 1;
3716 u16 fc;
3717
3718 mgmt = (struct ieee80211_mgmt *) data;
3719 fc = le_to_host16(mgmt->frame_control);
3720 wpa_printf(MSG_DEBUG, "nl80211: send_mlme - da= " MACSTR
3721 " noack=%d freq=%u no_cck=%d offchanok=%d wait_time=%u fc=0x%x (%s) nlmode=%d",
3722 MAC2STR(mgmt->da), noack, freq, no_cck, offchanok, wait_time,
3723 fc, fc2str(fc), drv->nlmode);
3724
3725 if ((is_sta_interface(drv->nlmode) ||
3726 drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) &&
3727 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
3728 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) {
3729 /*
3730 * The use of last_mgmt_freq is a bit of a hack,
3731 * but it works due to the single-threaded nature
3732 * of wpa_supplicant.
3733 */
3734 if (freq == 0) {
3735 wpa_printf(MSG_DEBUG, "nl80211: Use last_mgmt_freq=%d",
3736 drv->last_mgmt_freq);
3737 freq = drv->last_mgmt_freq;
3738 }
3739 return nl80211_send_frame_cmd(bss, freq, 0,
3740 data, data_len, NULL, 1, noack,
3741 1, csa_offs, csa_offs_len);
3742 }
3743
3744 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) {
3745 if (freq == 0) {
3746 wpa_printf(MSG_DEBUG, "nl80211: Use bss->freq=%d",
3747 bss->freq);
3748 freq = bss->freq;
3749 }
3750 return nl80211_send_frame_cmd(bss, freq,
3751 (int) freq == bss->freq ? 0 :
3752 wait_time,
3753 data, data_len,
3754 &drv->send_action_cookie,
3755 no_cck, noack, offchanok,
3756 csa_offs, csa_offs_len);
3757 }
3758
3759 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
3760 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) {
3761 /*
3762 * Only one of the authentication frame types is encrypted.
3763 * In order for static WEP encryption to work properly (i.e.,
3764 * to not encrypt the frame), we need to tell mac80211 about
3765 * the frames that must not be encrypted.
3766 */
3767 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
3768 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction);
3769 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3)
3770 encrypt = 0;
3771 }
3772
3773 wpa_printf(MSG_DEBUG, "nl80211: send_mlme -> send_frame");
3774 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt,
3775 noack, freq, no_cck, offchanok,
3776 wait_time, csa_offs,
3777 csa_offs_len);
3778 }
3779
3780
3781 static int nl80211_put_basic_rates(struct nl_msg *msg, const int *basic_rates)
3782 {
3783 u8 rates[NL80211_MAX_SUPP_RATES];
3784 u8 rates_len = 0;
3785 int i;
3786
3787 if (!basic_rates)
3788 return 0;
3789
3790 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; i++)
3791 rates[rates_len++] = basic_rates[i] / 5;
3792
3793 return nla_put(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates);
3794 }
3795
3796
3797 static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble,
3798 int slot, int ht_opmode, int ap_isolate,
3799 const int *basic_rates)
3800 {
3801 struct wpa_driver_nl80211_data *drv = bss->drv;
3802 struct nl_msg *msg;
3803
3804 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_BSS)) ||
3805 (cts >= 0 &&
3806 nla_put_u8(msg, NL80211_ATTR_BSS_CTS_PROT, cts)) ||
3807 (preamble >= 0 &&
3808 nla_put_u8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble)) ||
3809 (slot >= 0 &&
3810 nla_put_u8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot)) ||
3811 (ht_opmode >= 0 &&
3812 nla_put_u16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode)) ||
3813 (ap_isolate >= 0 &&
3814 nla_put_u8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate)) ||
3815 nl80211_put_basic_rates(msg, basic_rates)) {
3816 nlmsg_free(msg);
3817 return -ENOBUFS;
3818 }
3819
3820 return send_and_recv_msgs(drv, msg, NULL, NULL);
3821 }
3822
3823
3824 static int wpa_driver_nl80211_set_acl(void *priv,
3825 struct hostapd_acl_params *params)
3826 {
3827 struct i802_bss *bss = priv;
3828 struct wpa_driver_nl80211_data *drv = bss->drv;
3829 struct nl_msg *msg;
3830 struct nl_msg *acl;
3831 unsigned int i;
3832 int ret;
3833
3834 if (!(drv->capa.max_acl_mac_addrs))
3835 return -ENOTSUP;
3836
3837 if (params->num_mac_acl > drv->capa.max_acl_mac_addrs)
3838 return -ENOTSUP;
3839
3840 wpa_printf(MSG_DEBUG, "nl80211: Set %s ACL (num_mac_acl=%u)",
3841 params->acl_policy ? "Accept" : "Deny", params->num_mac_acl);
3842
3843 acl = nlmsg_alloc();
3844 if (!acl)
3845 return -ENOMEM;
3846 for (i = 0; i < params->num_mac_acl; i++) {
3847 if (nla_put(acl, i + 1, ETH_ALEN, params->mac_acl[i].addr)) {
3848 nlmsg_free(acl);
3849 return -ENOMEM;
3850 }
3851 }
3852
3853 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_SET_MAC_ACL)) ||
3854 nla_put_u32(msg, NL80211_ATTR_ACL_POLICY, params->acl_policy ?
3855 NL80211_ACL_POLICY_DENY_UNLESS_LISTED :
3856 NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED) ||
3857 nla_put_nested(msg, NL80211_ATTR_MAC_ADDRS, acl)) {
3858 nlmsg_free(msg);
3859 nlmsg_free(acl);
3860 return -ENOMEM;
3861 }
3862 nlmsg_free(acl);
3863
3864 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3865 if (ret) {
3866 wpa_printf(MSG_DEBUG, "nl80211: Failed to set MAC ACL: %d (%s)",
3867 ret, strerror(-ret));
3868 }
3869
3870 return ret;
3871 }
3872
3873
3874 static int nl80211_put_beacon_int(struct nl_msg *msg, int beacon_int)
3875 {
3876 if (beacon_int > 0) {
3877 wpa_printf(MSG_DEBUG, " * beacon_int=%d", beacon_int);
3878 return nla_put_u32(msg, NL80211_ATTR_BEACON_INTERVAL,
3879 beacon_int);
3880 }
3881
3882 return 0;
3883 }
3884
3885
3886 static int nl80211_put_dtim_period(struct nl_msg *msg, int dtim_period)
3887 {
3888 if (dtim_period > 0) {
3889 wpa_printf(MSG_DEBUG, " * dtim_period=%d", dtim_period);
3890 return nla_put_u32(msg, NL80211_ATTR_DTIM_PERIOD, dtim_period);
3891 }
3892
3893 return 0;
3894 }
3895
3896
3897 #ifdef CONFIG_MESH
3898 static int nl80211_set_mesh_config(void *priv,
3899 struct wpa_driver_mesh_bss_params *params)
3900 {
3901 struct i802_bss *bss = priv;
3902 struct wpa_driver_nl80211_data *drv = bss->drv;
3903 struct nl_msg *msg;
3904 int ret;
3905
3906 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_SET_MESH_CONFIG);
3907 if (!msg)
3908 return -1;
3909
3910 ret = nl80211_put_mesh_config(msg, params);
3911 if (ret < 0) {
3912 nlmsg_free(msg);
3913 return ret;
3914 }
3915
3916 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3917 if (ret) {
3918 wpa_printf(MSG_ERROR,
3919 "nl80211: Mesh config set failed: %d (%s)",
3920 ret, strerror(-ret));
3921 return ret;
3922 }
3923 return 0;
3924 }
3925 #endif /* CONFIG_MESH */
3926
3927
3928 static int nl80211_put_beacon_rate(struct nl_msg *msg, const u64 flags,
3929 struct wpa_driver_ap_params *params)
3930 {
3931 struct nlattr *bands, *band;
3932 struct nl80211_txrate_vht vht_rate;
3933
3934 if (!params->freq ||
3935 (params->beacon_rate == 0 &&
3936 params->rate_type == BEACON_RATE_LEGACY))
3937 return 0;
3938
3939 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES);
3940 if (!bands)
3941 return -1;
3942
3943 switch (params->freq->mode) {
3944 case HOSTAPD_MODE_IEEE80211B:
3945 case HOSTAPD_MODE_IEEE80211G:
3946 band = nla_nest_start(msg, NL80211_BAND_2GHZ);
3947 break;
3948 case HOSTAPD_MODE_IEEE80211A:
3949 band = nla_nest_start(msg, NL80211_BAND_5GHZ);
3950 break;
3951 case HOSTAPD_MODE_IEEE80211AD:
3952 band = nla_nest_start(msg, NL80211_BAND_60GHZ);
3953 break;
3954 default:
3955 return 0;
3956 }
3957
3958 if (!band)
3959 return -1;
3960
3961 os_memset(&vht_rate, 0, sizeof(vht_rate));
3962
3963 switch (params->rate_type) {
3964 case BEACON_RATE_LEGACY:
3965 if (!(flags & WPA_DRIVER_FLAGS_BEACON_RATE_LEGACY)) {
3966 wpa_printf(MSG_INFO,
3967 "nl80211: Driver does not support setting Beacon frame rate (legacy)");
3968 return -1;
3969 }
3970
3971 if (nla_put_u8(msg, NL80211_TXRATE_LEGACY,
3972 (u8) params->beacon_rate / 5) ||
3973 nla_put(msg, NL80211_TXRATE_HT, 0, NULL) ||
3974 (params->freq->vht_enabled &&
3975 nla_put(msg, NL80211_TXRATE_VHT, sizeof(vht_rate),
3976 &vht_rate)))
3977 return -1;
3978
3979 wpa_printf(MSG_DEBUG, " * beacon_rate = legacy:%u (* 100 kbps)",
3980 params->beacon_rate);
3981 break;
3982 case BEACON_RATE_HT:
3983 if (!(flags & WPA_DRIVER_FLAGS_BEACON_RATE_HT)) {
3984 wpa_printf(MSG_INFO,
3985 "nl80211: Driver does not support setting Beacon frame rate (HT)");
3986 return -1;
3987 }
3988 if (nla_put(msg, NL80211_TXRATE_LEGACY, 0, NULL) ||
3989 nla_put_u8(msg, NL80211_TXRATE_HT, params->beacon_rate) ||
3990 (params->freq->vht_enabled &&
3991 nla_put(msg, NL80211_TXRATE_VHT, sizeof(vht_rate),
3992 &vht_rate)))
3993 return -1;
3994 wpa_printf(MSG_DEBUG, " * beacon_rate = HT-MCS %u",
3995 params->beacon_rate);
3996 break;
3997 case BEACON_RATE_VHT:
3998 if (!(flags & WPA_DRIVER_FLAGS_BEACON_RATE_VHT)) {
3999 wpa_printf(MSG_INFO,
4000 "nl80211: Driver does not support setting Beacon frame rate (VHT)");
4001 return -1;
4002 }
4003 vht_rate.mcs[0] = BIT(params->beacon_rate);
4004 if (nla_put(msg, NL80211_TXRATE_LEGACY, 0, NULL))
4005 return -1;
4006 if (nla_put(msg, NL80211_TXRATE_HT, 0, NULL))
4007 return -1;
4008 if (nla_put(msg, NL80211_TXRATE_VHT, sizeof(vht_rate),
4009 &vht_rate))
4010 return -1;
4011 wpa_printf(MSG_DEBUG, " * beacon_rate = VHT-MCS %u",
4012 params->beacon_rate);
4013 break;
4014 }
4015
4016 nla_nest_end(msg, band);
4017 nla_nest_end(msg, bands);
4018
4019 return 0;
4020 }
4021
4022
4023 static int nl80211_set_multicast_to_unicast(struct i802_bss *bss,
4024 int multicast_to_unicast)
4025 {
4026 struct wpa_driver_nl80211_data *drv = bss->drv;
4027 struct nl_msg *msg;
4028 int ret;
4029
4030 msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_MULTICAST_TO_UNICAST);
4031 if (!msg ||
4032 (multicast_to_unicast &&
4033 nla_put_flag(msg, NL80211_ATTR_MULTICAST_TO_UNICAST_ENABLED))) {
4034 wpa_printf(MSG_ERROR,
4035 "nl80211: Failed to build NL80211_CMD_SET_MULTICAST_TO_UNICAST msg for %s",
4036 bss->ifname);
4037 nlmsg_free(msg);
4038 return -ENOBUFS;
4039 }
4040
4041 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4042
4043 switch (ret) {
4044 case 0:
4045 wpa_printf(MSG_DEBUG,
4046 "nl80211: multicast to unicast %s on interface %s",
4047 multicast_to_unicast ? "enabled" : "disabled",
4048 bss->ifname);
4049 break;
4050 case -EOPNOTSUPP:
4051 if (!multicast_to_unicast)
4052 break;
4053 wpa_printf(MSG_INFO,
4054 "nl80211: multicast to unicast not supported on interface %s",
4055 bss->ifname);
4056 break;
4057 default:
4058 wpa_printf(MSG_ERROR,
4059 "nl80211: %s multicast to unicast failed with %d (%s) on interface %s",
4060 multicast_to_unicast ? "enabling" : "disabling",
4061 ret, strerror(-ret), bss->ifname);
4062 break;
4063 }
4064
4065 return ret;
4066 }
4067
4068
4069 static int wpa_driver_nl80211_set_ap(void *priv,
4070 struct wpa_driver_ap_params *params)
4071 {
4072 struct i802_bss *bss = priv;
4073 struct wpa_driver_nl80211_data *drv = bss->drv;
4074 struct nl_msg *msg;
4075 u8 cmd = NL80211_CMD_NEW_BEACON;
4076 int ret = -ENOBUFS;
4077 int beacon_set;
4078 int num_suites;
4079 int smps_mode;
4080 u32 suites[10], suite;
4081 u32 ver;
4082 #ifdef CONFIG_MESH
4083 struct wpa_driver_mesh_bss_params mesh_params;
4084 #endif /* CONFIG_MESH */
4085
4086 beacon_set = params->reenable ? 0 : bss->beacon_set;
4087
4088 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)",
4089 beacon_set);
4090 if (beacon_set)
4091 cmd = NL80211_CMD_SET_BEACON;
4092 else if (!drv->device_ap_sme && !drv->use_monitor &&
4093 !nl80211_get_wiphy_data_ap(bss))
4094 return -ENOBUFS;
4095
4096 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon head",
4097 params->head, params->head_len);
4098 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon tail",
4099 params->tail, params->tail_len);
4100 wpa_printf(MSG_DEBUG, "nl80211: ifindex=%d", bss->ifindex);
4101 wpa_printf(MSG_DEBUG, "nl80211: beacon_int=%d", params->beacon_int);
4102 wpa_printf(MSG_DEBUG, "nl80211: beacon_rate=%u", params->beacon_rate);
4103 wpa_printf(MSG_DEBUG, "nl80211: rate_type=%d", params->rate_type);
4104 wpa_printf(MSG_DEBUG, "nl80211: dtim_period=%d", params->dtim_period);
4105 wpa_printf(MSG_DEBUG, "nl80211: ssid=%s",
4106 wpa_ssid_txt(params->ssid, params->ssid_len));
4107 if (!(msg = nl80211_bss_msg(bss, 0, cmd)) ||
4108 nla_put(msg, NL80211_ATTR_BEACON_HEAD, params->head_len,
4109 params->head) ||
4110 nla_put(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len,
4111 params->tail) ||
4112 nl80211_put_beacon_int(msg, params->beacon_int) ||
4113 nl80211_put_beacon_rate(msg, drv->capa.flags, params) ||
4114 nl80211_put_dtim_period(msg, params->dtim_period) ||
4115 nla_put(msg, NL80211_ATTR_SSID, params->ssid_len, params->ssid))
4116 goto fail;
4117 if (params->proberesp && params->proberesp_len) {
4118 wpa_hexdump(MSG_DEBUG, "nl80211: proberesp (offload)",
4119 params->proberesp, params->proberesp_len);
4120 if (nla_put(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len,
4121 params->proberesp))
4122 goto fail;
4123 }
4124 switch (params->hide_ssid) {
4125 case NO_SSID_HIDING:
4126 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID not in use");
4127 if (nla_put_u32(msg, NL80211_ATTR_HIDDEN_SSID,
4128 NL80211_HIDDEN_SSID_NOT_IN_USE))
4129 goto fail;
4130 break;
4131 case HIDDEN_SSID_ZERO_LEN:
4132 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero len");
4133 if (nla_put_u32(msg, NL80211_ATTR_HIDDEN_SSID,
4134 NL80211_HIDDEN_SSID_ZERO_LEN))
4135 goto fail;
4136 break;
4137 case HIDDEN_SSID_ZERO_CONTENTS:
4138 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero contents");
4139 if (nla_put_u32(msg, NL80211_ATTR_HIDDEN_SSID,
4140 NL80211_HIDDEN_SSID_ZERO_CONTENTS))
4141 goto fail;
4142 break;
4143 }
4144 wpa_printf(MSG_DEBUG, "nl80211: privacy=%d", params->privacy);
4145 if (params->privacy &&
4146 nla_put_flag(msg, NL80211_ATTR_PRIVACY))
4147 goto fail;
4148 wpa_printf(MSG_DEBUG, "nl80211: auth_algs=0x%x", params->auth_algs);
4149 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) ==
4150 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) {
4151 /* Leave out the attribute */
4152 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED) {
4153 if (nla_put_u32(msg, NL80211_ATTR_AUTH_TYPE,
4154 NL80211_AUTHTYPE_SHARED_KEY))
4155 goto fail;
4156 } else {
4157 if (nla_put_u32(msg, NL80211_ATTR_AUTH_TYPE,
4158 NL80211_AUTHTYPE_OPEN_SYSTEM))
4159 goto fail;
4160 }
4161
4162 wpa_printf(MSG_DEBUG, "nl80211: wpa_version=0x%x", params->wpa_version);
4163 ver = 0;
4164 if (params->wpa_version & WPA_PROTO_WPA)
4165 ver |= NL80211_WPA_VERSION_1;
4166 if (params->wpa_version & WPA_PROTO_RSN)
4167 ver |= NL80211_WPA_VERSION_2;
4168 if (ver &&
4169 nla_put_u32(msg, NL80211_ATTR_WPA_VERSIONS, ver))
4170 goto fail;
4171
4172 wpa_printf(MSG_DEBUG, "nl80211: key_mgmt_suites=0x%x",
4173 params->key_mgmt_suites);
4174 num_suites = 0;
4175 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X)
4176 suites[num_suites++] = RSN_AUTH_KEY_MGMT_UNSPEC_802_1X;
4177 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK)
4178 suites[num_suites++] = RSN_AUTH_KEY_MGMT_PSK_OVER_802_1X;
4179 if (num_suites &&
4180 nla_put(msg, NL80211_ATTR_AKM_SUITES, num_suites * sizeof(u32),
4181 suites))
4182 goto fail;
4183
4184 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
4185 (!params->pairwise_ciphers ||
4186 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40)) &&
4187 (nla_put_u16(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE, ETH_P_PAE) ||
4188 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT)))
4189 goto fail;
4190
4191 if (drv->device_ap_sme &&
4192 (params->key_mgmt_suites & WPA_KEY_MGMT_SAE) &&
4193 nla_put_flag(msg, NL80211_ATTR_EXTERNAL_AUTH_SUPPORT))
4194 goto fail;
4195
4196 wpa_printf(MSG_DEBUG, "nl80211: pairwise_ciphers=0x%x",
4197 params->pairwise_ciphers);
4198 num_suites = wpa_cipher_to_cipher_suites(params->pairwise_ciphers,
4199 suites, ARRAY_SIZE(suites));
4200 if (num_suites &&
4201 nla_put(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE,
4202 num_suites * sizeof(u32), suites))
4203 goto fail;
4204
4205 wpa_printf(MSG_DEBUG, "nl80211: group_cipher=0x%x",
4206 params->group_cipher);
4207 suite = wpa_cipher_to_cipher_suite(params->group_cipher);
4208 if (suite &&
4209 nla_put_u32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, suite))
4210 goto fail;
4211
4212 if (params->ht_opmode != -1) {
4213 switch (params->smps_mode) {
4214 case HT_CAP_INFO_SMPS_DYNAMIC:
4215 wpa_printf(MSG_DEBUG, "nl80211: SMPS mode - dynamic");
4216 smps_mode = NL80211_SMPS_DYNAMIC;
4217 break;
4218 case HT_CAP_INFO_SMPS_STATIC:
4219 wpa_printf(MSG_DEBUG, "nl80211: SMPS mode - static");
4220 smps_mode = NL80211_SMPS_STATIC;
4221 break;
4222 default:
4223 /* invalid - fallback to smps off */
4224 case HT_CAP_INFO_SMPS_DISABLED:
4225 wpa_printf(MSG_DEBUG, "nl80211: SMPS mode - off");
4226 smps_mode = NL80211_SMPS_OFF;
4227 break;
4228 }
4229 if (nla_put_u8(msg, NL80211_ATTR_SMPS_MODE, smps_mode))
4230 goto fail;
4231 }
4232
4233 if (params->beacon_ies) {
4234 wpa_hexdump_buf(MSG_DEBUG, "nl80211: beacon_ies",
4235 params->beacon_ies);
4236 if (nla_put(msg, NL80211_ATTR_IE,
4237 wpabuf_len(params->beacon_ies),
4238 wpabuf_head(params->beacon_ies)))
4239 goto fail;
4240 }
4241 if (params->proberesp_ies) {
4242 wpa_hexdump_buf(MSG_DEBUG, "nl80211: proberesp_ies",
4243 params->proberesp_ies);
4244 if (nla_put(msg, NL80211_ATTR_IE_PROBE_RESP,
4245 wpabuf_len(params->proberesp_ies),
4246 wpabuf_head(params->proberesp_ies)))
4247 goto fail;
4248 }
4249 if (params->assocresp_ies) {
4250 wpa_hexdump_buf(MSG_DEBUG, "nl80211: assocresp_ies",
4251 params->assocresp_ies);
4252 if (nla_put(msg, NL80211_ATTR_IE_ASSOC_RESP,
4253 wpabuf_len(params->assocresp_ies),
4254 wpabuf_head(params->assocresp_ies)))
4255 goto fail;
4256 }
4257
4258 if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) {
4259 wpa_printf(MSG_DEBUG, "nl80211: ap_max_inactivity=%d",
4260 params->ap_max_inactivity);
4261 if (nla_put_u16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT,
4262 params->ap_max_inactivity))
4263 goto fail;
4264 }
4265
4266 #ifdef CONFIG_P2P
4267 if (params->p2p_go_ctwindow > 0) {
4268 if (drv->p2p_go_ctwindow_supported) {
4269 wpa_printf(MSG_DEBUG, "nl80211: P2P GO ctwindow=%d",
4270 params->p2p_go_ctwindow);
4271 if (nla_put_u8(msg, NL80211_ATTR_P2P_CTWINDOW,
4272 params->p2p_go_ctwindow))
4273 goto fail;
4274 } else {
4275 wpa_printf(MSG_INFO,
4276 "nl80211: Driver does not support CTWindow configuration - ignore this parameter");
4277 }
4278 }
4279 #endif /* CONFIG_P2P */
4280
4281 if (params->pbss) {
4282 wpa_printf(MSG_DEBUG, "nl80211: PBSS");
4283 if (nla_put_flag(msg, NL80211_ATTR_PBSS))
4284 goto fail;
4285 }
4286
4287 if (params->ftm_responder) {
4288 struct nlattr *ftm;
4289
4290 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_FTM_RESPONDER)) {
4291 ret = -ENOTSUP;
4292 goto fail;
4293 }
4294
4295 ftm = nla_nest_start(msg, NL80211_ATTR_FTM_RESPONDER);
4296 if (!ftm ||
4297 nla_put_flag(msg, NL80211_FTM_RESP_ATTR_ENABLED) ||
4298 (params->lci &&
4299 nla_put(msg, NL80211_FTM_RESP_ATTR_LCI,
4300 wpabuf_len(params->lci),
4301 wpabuf_head(params->lci))) ||
4302 (params->civic &&
4303 nla_put(msg, NL80211_FTM_RESP_ATTR_CIVICLOC,
4304 wpabuf_len(params->civic),
4305 wpabuf_head(params->civic))))
4306 goto fail;
4307 nla_nest_end(msg, ftm);
4308 }
4309
4310 #ifdef CONFIG_IEEE80211AX
4311 if (params->he_spr) {
4312 struct nlattr *spr;
4313
4314 spr = nla_nest_start(msg, NL80211_ATTR_HE_OBSS_PD);
4315 wpa_printf(MSG_DEBUG, "nl80211: he_spr=%d", params->he_spr);
4316
4317 if (nla_put_u8(msg, NL80211_HE_OBSS_PD_ATTR_MIN_OFFSET,
4318 params->he_spr_srg_obss_pd_min_offset) ||
4319 nla_put_u8(msg, NL80211_HE_OBSS_PD_ATTR_MAX_OFFSET,
4320 params->he_spr_srg_obss_pd_max_offset))
4321 goto fail;
4322
4323 nla_nest_end(msg, spr);
4324 }
4325 #endif /* CONFIG_IEEE80211AX */
4326
4327 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4328 if (ret) {
4329 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)",
4330 ret, strerror(-ret));
4331 } else {
4332 bss->beacon_set = 1;
4333 nl80211_set_bss(bss, params->cts_protect, params->preamble,
4334 params->short_slot_time, params->ht_opmode,
4335 params->isolate, params->basic_rates);
4336 nl80211_set_multicast_to_unicast(bss,
4337 params->multicast_to_unicast);
4338 if (beacon_set && params->freq &&
4339 params->freq->bandwidth != bss->bandwidth) {
4340 wpa_printf(MSG_DEBUG,
4341 "nl80211: Update BSS %s bandwidth: %d -> %d",
4342 bss->ifname, bss->bandwidth,
4343 params->freq->bandwidth);
4344 ret = nl80211_set_channel(bss, params->freq, 1);
4345 if (ret) {
4346 wpa_printf(MSG_DEBUG,
4347 "nl80211: Frequency set failed: %d (%s)",
4348 ret, strerror(-ret));
4349 } else {
4350 wpa_printf(MSG_DEBUG,
4351 "nl80211: Frequency set succeeded for ht2040 coex");
4352 bss->bandwidth = params->freq->bandwidth;
4353 }
4354 } else if (!beacon_set && params->freq) {
4355 /*
4356 * cfg80211 updates the driver on frequence change in AP
4357 * mode only at the point when beaconing is started, so
4358 * set the initial value here.
4359 */
4360 bss->bandwidth = params->freq->bandwidth;
4361 }
4362 }
4363
4364 #ifdef CONFIG_MESH
4365 if (is_mesh_interface(drv->nlmode) && params->ht_opmode != -1) {
4366 os_memset(&mesh_params, 0, sizeof(mesh_params));
4367 mesh_params.flags |= WPA_DRIVER_MESH_CONF_FLAG_HT_OP_MODE;
4368 mesh_params.ht_opmode = params->ht_opmode;
4369 ret = nl80211_set_mesh_config(priv, &mesh_params);
4370 if (ret < 0)
4371 return ret;
4372 }
4373 #endif /* CONFIG_MESH */
4374
4375 return ret;
4376 fail:
4377 nlmsg_free(msg);
4378 return ret;
4379 }
4380
4381
4382 static int nl80211_put_freq_params(struct nl_msg *msg,
4383 const struct hostapd_freq_params *freq)
4384 {
4385 enum hostapd_hw_mode hw_mode;
4386 int is_24ghz;
4387 u8 channel;
4388
4389 wpa_printf(MSG_DEBUG, " * freq=%d", freq->freq);
4390 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq))
4391 return -ENOBUFS;
4392
4393 wpa_printf(MSG_DEBUG, " * he_enabled=%d", freq->he_enabled);
4394 wpa_printf(MSG_DEBUG, " * vht_enabled=%d", freq->vht_enabled);
4395 wpa_printf(MSG_DEBUG, " * ht_enabled=%d", freq->ht_enabled);
4396
4397 hw_mode = ieee80211_freq_to_chan(freq->freq, &channel);
4398 is_24ghz = hw_mode == HOSTAPD_MODE_IEEE80211G ||
4399 hw_mode == HOSTAPD_MODE_IEEE80211B;
4400
4401 if (freq->vht_enabled || (freq->he_enabled && !is_24ghz)) {
4402 enum nl80211_chan_width cw;
4403
4404 wpa_printf(MSG_DEBUG, " * bandwidth=%d", freq->bandwidth);
4405 switch (freq->bandwidth) {
4406 case 20:
4407 cw = NL80211_CHAN_WIDTH_20;
4408 break;
4409 case 40:
4410 cw = NL80211_CHAN_WIDTH_40;
4411 break;
4412 case 80:
4413 if (freq->center_freq2)
4414 cw = NL80211_CHAN_WIDTH_80P80;
4415 else
4416 cw = NL80211_CHAN_WIDTH_80;
4417 break;
4418 case 160:
4419 cw = NL80211_CHAN_WIDTH_160;
4420 break;
4421 default:
4422 return -EINVAL;
4423 }
4424
4425 wpa_printf(MSG_DEBUG, " * channel_width=%d", cw);
4426 wpa_printf(MSG_DEBUG, " * center_freq1=%d",
4427 freq->center_freq1);
4428 wpa_printf(MSG_DEBUG, " * center_freq2=%d",
4429 freq->center_freq2);
4430 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, cw) ||
4431 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1,
4432 freq->center_freq1) ||
4433 (freq->center_freq2 &&
4434 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2,
4435 freq->center_freq2)))
4436 return -ENOBUFS;
4437 } else if (freq->ht_enabled) {
4438 enum nl80211_channel_type ct;
4439
4440 wpa_printf(MSG_DEBUG, " * sec_channel_offset=%d",
4441 freq->sec_channel_offset);
4442 switch (freq->sec_channel_offset) {
4443 case -1:
4444 ct = NL80211_CHAN_HT40MINUS;
4445 break;
4446 case 1:
4447 ct = NL80211_CHAN_HT40PLUS;
4448 break;
4449 default:
4450 ct = NL80211_CHAN_HT20;
4451 break;
4452 }
4453
4454 wpa_printf(MSG_DEBUG, " * channel_type=%d", ct);
4455 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, ct))
4456 return -ENOBUFS;
4457 } else if (freq->edmg.channels && freq->edmg.bw_config) {
4458 wpa_printf(MSG_DEBUG,
4459 " * EDMG configuration: channels=0x%x bw_config=%d",
4460 freq->edmg.channels, freq->edmg.bw_config);
4461 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_EDMG_CHANNELS,
4462 freq->edmg.channels) ||
4463 nla_put_u8(msg, NL80211_ATTR_WIPHY_EDMG_BW_CONFIG,
4464 freq->edmg.bw_config))
4465 return -1;
4466 } else {
4467 wpa_printf(MSG_DEBUG, " * channel_type=%d",
4468 NL80211_CHAN_NO_HT);
4469 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
4470 NL80211_CHAN_NO_HT))
4471 return -ENOBUFS;
4472 }
4473 return 0;
4474 }
4475
4476
4477 static int nl80211_set_channel(struct i802_bss *bss,
4478 struct hostapd_freq_params *freq, int set_chan)
4479 {
4480 struct wpa_driver_nl80211_data *drv = bss->drv;
4481 struct nl_msg *msg;
4482 int ret;
4483
4484 wpa_printf(MSG_DEBUG,
4485 "nl80211: Set freq %d (ht_enabled=%d, vht_enabled=%d, he_enabled=%d, bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)",
4486 freq->freq, freq->ht_enabled, freq->vht_enabled, freq->he_enabled,
4487 freq->bandwidth, freq->center_freq1, freq->center_freq2);
4488
4489 msg = nl80211_drv_msg(drv, 0, set_chan ? NL80211_CMD_SET_CHANNEL :
4490 NL80211_CMD_SET_WIPHY);
4491 if (!msg || nl80211_put_freq_params(msg, freq) < 0) {
4492 nlmsg_free(msg);
4493 return -1;
4494 }
4495
4496 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4497 if (ret == 0) {
4498 bss->freq = freq->freq;
4499 return 0;
4500 }
4501 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): "
4502 "%d (%s)", freq->freq, ret, strerror(-ret));
4503 return -1;
4504 }
4505
4506
4507 static u32 sta_flags_nl80211(int flags)
4508 {
4509 u32 f = 0;
4510
4511 if (flags & WPA_STA_AUTHORIZED)
4512 f |= BIT(NL80211_STA_FLAG_AUTHORIZED);
4513 if (flags & WPA_STA_WMM)
4514 f |= BIT(NL80211_STA_FLAG_WME);
4515 if (flags & WPA_STA_SHORT_PREAMBLE)
4516 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
4517 if (flags & WPA_STA_MFP)
4518 f |= BIT(NL80211_STA_FLAG_MFP);
4519 if (flags & WPA_STA_TDLS_PEER)
4520 f |= BIT(NL80211_STA_FLAG_TDLS_PEER);
4521 if (flags & WPA_STA_AUTHENTICATED)
4522 f |= BIT(NL80211_STA_FLAG_AUTHENTICATED);
4523 if (flags & WPA_STA_ASSOCIATED)
4524 f |= BIT(NL80211_STA_FLAG_ASSOCIATED);
4525
4526 return f;
4527 }
4528
4529
4530 #ifdef CONFIG_MESH
4531 static u32 sta_plink_state_nl80211(enum mesh_plink_state state)
4532 {
4533 switch (state) {
4534 case PLINK_IDLE:
4535 return NL80211_PLINK_LISTEN;
4536 case PLINK_OPN_SNT:
4537 return NL80211_PLINK_OPN_SNT;
4538 case PLINK_OPN_RCVD:
4539 return NL80211_PLINK_OPN_RCVD;
4540 case PLINK_CNF_RCVD:
4541 return NL80211_PLINK_CNF_RCVD;
4542 case PLINK_ESTAB:
4543 return NL80211_PLINK_ESTAB;
4544 case PLINK_HOLDING:
4545 return NL80211_PLINK_HOLDING;
4546 case PLINK_BLOCKED:
4547 return NL80211_PLINK_BLOCKED;
4548 default:
4549 wpa_printf(MSG_ERROR, "nl80211: Invalid mesh plink state %d",
4550 state);
4551 }
4552 return -1;
4553 }
4554 #endif /* CONFIG_MESH */
4555
4556
4557 static int wpa_driver_nl80211_sta_add(void *priv,
4558 struct hostapd_sta_add_params *params)
4559 {
4560 struct i802_bss *bss = priv;
4561 struct wpa_driver_nl80211_data *drv = bss->drv;
4562 struct nl_msg *msg;
4563 struct nl80211_sta_flag_update upd;
4564 int ret = -ENOBUFS;
4565
4566 if ((params->flags & WPA_STA_TDLS_PEER) &&
4567 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
4568 return -EOPNOTSUPP;
4569
4570 wpa_printf(MSG_DEBUG, "nl80211: %s STA " MACSTR,
4571 params->set ? "Set" : "Add", MAC2STR(params->addr));
4572 msg = nl80211_bss_msg(bss, 0, params->set ? NL80211_CMD_SET_STATION :
4573 NL80211_CMD_NEW_STATION);
4574 if (!msg || nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr))
4575 goto fail;
4576
4577 /*
4578 * Set the below properties only in one of the following cases:
4579 * 1. New station is added, already associated.
4580 * 2. Set WPA_STA_TDLS_PEER station.
4581 * 3. Set an already added unassociated station, if driver supports
4582 * full AP client state. (Set these properties after station became
4583 * associated will be rejected by the driver).
4584 */
4585 if (!params->set || (params->flags & WPA_STA_TDLS_PEER) ||
4586 (params->set && FULL_AP_CLIENT_STATE_SUPP(drv->capa.flags) &&
4587 (params->flags & WPA_STA_ASSOCIATED))) {
4588 wpa_hexdump(MSG_DEBUG, " * supported rates",
4589 params->supp_rates, params->supp_rates_len);
4590 wpa_printf(MSG_DEBUG, " * capability=0x%x",
4591 params->capability);
4592 if (nla_put(msg, NL80211_ATTR_STA_SUPPORTED_RATES,
4593 params->supp_rates_len, params->supp_rates) ||
4594 nla_put_u16(msg, NL80211_ATTR_STA_CAPABILITY,
4595 params->capability))
4596 goto fail;
4597
4598 if (params->ht_capabilities) {
4599 wpa_hexdump(MSG_DEBUG, " * ht_capabilities",
4600 (u8 *) params->ht_capabilities,
4601 sizeof(*params->ht_capabilities));
4602 if (nla_put(msg, NL80211_ATTR_HT_CAPABILITY,
4603 sizeof(*params->ht_capabilities),
4604 params->ht_capabilities))
4605 goto fail;
4606 }
4607
4608 if (params->vht_capabilities) {
4609 wpa_hexdump(MSG_DEBUG, " * vht_capabilities",
4610 (u8 *) params->vht_capabilities,
4611 sizeof(*params->vht_capabilities));
4612 if (nla_put(msg, NL80211_ATTR_VHT_CAPABILITY,
4613 sizeof(*params->vht_capabilities),
4614 params->vht_capabilities))
4615 goto fail;
4616 }
4617
4618 if (params->he_capab) {
4619 wpa_hexdump(MSG_DEBUG, " * he_capab",
4620 params->he_capab, params->he_capab_len);
4621 if (nla_put(msg, NL80211_ATTR_HE_CAPABILITY,
4622 params->he_capab_len, params->he_capab))
4623 goto fail;
4624 }
4625
4626 if (params->ext_capab) {
4627 wpa_hexdump(MSG_DEBUG, " * ext_capab",
4628 params->ext_capab, params->ext_capab_len);
4629 if (nla_put(msg, NL80211_ATTR_STA_EXT_CAPABILITY,
4630 params->ext_capab_len, params->ext_capab))
4631 goto fail;
4632 }
4633
4634 if (is_ap_interface(drv->nlmode) &&
4635 nla_put_u8(msg, NL80211_ATTR_STA_SUPPORT_P2P_PS,
4636 params->support_p2p_ps ?
4637 NL80211_P2P_PS_SUPPORTED :
4638 NL80211_P2P_PS_UNSUPPORTED))
4639 goto fail;
4640 }
4641 if (!params->set) {
4642 if (params->aid) {
4643 wpa_printf(MSG_DEBUG, " * aid=%u", params->aid);
4644 if (nla_put_u16(msg, NL80211_ATTR_STA_AID, params->aid))
4645 goto fail;
4646 } else {
4647 /*
4648 * cfg80211 validates that AID is non-zero, so we have
4649 * to make this a non-zero value for the TDLS case where
4650 * a dummy STA entry is used for now and for a station
4651 * that is still not associated.
4652 */
4653 wpa_printf(MSG_DEBUG, " * aid=1 (%s workaround)",
4654 (params->flags & WPA_STA_TDLS_PEER) ?
4655 "TDLS" : "UNASSOC_STA");
4656 if (nla_put_u16(msg, NL80211_ATTR_STA_AID, 1))
4657 goto fail;
4658 }
4659 wpa_printf(MSG_DEBUG, " * listen_interval=%u",
4660 params->listen_interval);
4661 if (nla_put_u16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL,
4662 params->listen_interval))
4663 goto fail;
4664 } else if (params->aid && (params->flags & WPA_STA_TDLS_PEER)) {
4665 wpa_printf(MSG_DEBUG, " * peer_aid=%u", params->aid);
4666 if (nla_put_u16(msg, NL80211_ATTR_PEER_AID, params->aid))
4667 goto fail;
4668 } else if (FULL_AP_CLIENT_STATE_SUPP(drv->capa.flags) &&
4669 (params->flags & WPA_STA_ASSOCIATED)) {
4670 wpa_printf(MSG_DEBUG, " * aid=%u", params->aid);
4671 wpa_printf(MSG_DEBUG, " * listen_interval=%u",
4672 params->listen_interval);
4673 if (nla_put_u16(msg, NL80211_ATTR_STA_AID, params->aid) ||
4674 nla_put_u16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL,
4675 params->listen_interval))
4676 goto fail;
4677 }
4678
4679 if (params->vht_opmode_enabled) {
4680 wpa_printf(MSG_DEBUG, " * opmode=%u", params->vht_opmode);
4681 if (nla_put_u8(msg, NL80211_ATTR_OPMODE_NOTIF,
4682 params->vht_opmode))
4683 goto fail;
4684 }
4685
4686 if (params->supp_channels) {
4687 wpa_hexdump(MSG_DEBUG, " * supported channels",
4688 params->supp_channels, params->supp_channels_len);
4689 if (nla_put(msg, NL80211_ATTR_STA_SUPPORTED_CHANNELS,
4690 params->supp_channels_len, params->supp_channels))
4691 goto fail;
4692 }
4693
4694 if (params->supp_oper_classes) {
4695 wpa_hexdump(MSG_DEBUG, " * supported operating classes",
4696 params->supp_oper_classes,
4697 params->supp_oper_classes_len);
4698 if (nla_put(msg, NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES,
4699 params->supp_oper_classes_len,
4700 params->supp_oper_classes))
4701 goto fail;
4702 }
4703
4704 os_memset(&upd, 0, sizeof(upd));
4705 upd.set = sta_flags_nl80211(params->flags);
4706 upd.mask = upd.set | sta_flags_nl80211(params->flags_mask);
4707
4708 /*
4709 * If the driver doesn't support full AP client state, ignore ASSOC/AUTH
4710 * flags, as nl80211 driver moves a new station, by default, into
4711 * associated state.
4712 *
4713 * On the other hand, if the driver supports that feature and the
4714 * station is added in unauthenticated state, set the
4715 * authenticated/associated bits in the mask to prevent moving this
4716 * station to associated state before it is actually associated.
4717 *
4718 * This is irrelevant for mesh mode where the station is added to the
4719 * driver as authenticated already, and ASSOCIATED isn't part of the
4720 * nl80211 API.
4721 */
4722 if (!is_mesh_interface(drv->nlmode)) {
4723 if (!FULL_AP_CLIENT_STATE_SUPP(drv->capa.flags)) {
4724 wpa_printf(MSG_DEBUG,
4725 "nl80211: Ignore ASSOC/AUTH flags since driver doesn't support full AP client state");
4726 upd.mask &= ~(BIT(NL80211_STA_FLAG_ASSOCIATED) |
4727 BIT(NL80211_STA_FLAG_AUTHENTICATED));
4728 } else if (!params->set &&
4729 !(params->flags & WPA_STA_TDLS_PEER)) {
4730 if (!(params->flags & WPA_STA_AUTHENTICATED))
4731 upd.mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED);
4732 if (!(params->flags & WPA_STA_ASSOCIATED))
4733 upd.mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
4734 }
4735 #ifdef CONFIG_MESH
4736 } else {
4737 if (params->plink_state == PLINK_ESTAB && params->peer_aid) {
4738 ret = nla_put_u16(msg, NL80211_ATTR_MESH_PEER_AID,
4739 params->peer_aid);
4740 if (ret)
4741 goto fail;
4742 }
4743 #endif /* CONFIG_MESH */
4744 }
4745
4746 wpa_printf(MSG_DEBUG, " * flags set=0x%x mask=0x%x",
4747 upd.set, upd.mask);
4748 if (nla_put(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd))
4749 goto fail;
4750
4751 #ifdef CONFIG_MESH
4752 if (params->plink_state &&
4753 nla_put_u8(msg, NL80211_ATTR_STA_PLINK_STATE,
4754 sta_plink_state_nl80211(params->plink_state)))
4755 goto fail;
4756 #endif /* CONFIG_MESH */
4757
4758 if ((!params->set || (params->flags & WPA_STA_TDLS_PEER) ||
4759 FULL_AP_CLIENT_STATE_SUPP(drv->capa.flags)) &&
4760 (params->flags & WPA_STA_WMM)) {
4761 struct nlattr *wme = nla_nest_start(msg, NL80211_ATTR_STA_WME);
4762
4763 wpa_printf(MSG_DEBUG, " * qosinfo=0x%x", params->qosinfo);
4764 if (!wme ||
4765 nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
4766 params->qosinfo & WMM_QOSINFO_STA_AC_MASK) ||
4767 nla_put_u8(msg, NL80211_STA_WME_MAX_SP,
4768 (params->qosinfo >> WMM_QOSINFO_STA_SP_SHIFT) &
4769 WMM_QOSINFO_STA_SP_MASK))
4770 goto fail;
4771 nla_nest_end(msg, wme);
4772 }
4773
4774 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4775 msg = NULL;
4776 if (ret)
4777 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION "
4778 "result: %d (%s)", params->set ? "SET" : "NEW", ret,
4779 strerror(-ret));
4780 if (ret == -EEXIST)
4781 ret = 0;
4782 fail:
4783 nlmsg_free(msg);
4784 return ret;
4785 }
4786
4787
4788 static void rtnl_neigh_delete_fdb_entry(struct i802_bss *bss, const u8 *addr)
4789 {
4790 #ifdef CONFIG_LIBNL3_ROUTE
4791 struct wpa_driver_nl80211_data *drv = bss->drv;
4792 struct rtnl_neigh *rn;
4793 struct nl_addr *nl_addr;
4794 int err;
4795
4796 rn = rtnl_neigh_alloc();
4797 if (!rn)
4798 return;
4799
4800 rtnl_neigh_set_family(rn, AF_BRIDGE);
4801 rtnl_neigh_set_ifindex(rn, bss->ifindex);
4802 nl_addr = nl_addr_build(AF_BRIDGE, (void *) addr, ETH_ALEN);
4803 if (!nl_addr) {
4804 rtnl_neigh_put(rn);
4805 return;
4806 }
4807 rtnl_neigh_set_lladdr(rn, nl_addr);
4808
4809 err = rtnl_neigh_delete(drv->rtnl_sk, rn, 0);
4810 if (err < 0) {
4811 wpa_printf(MSG_DEBUG, "nl80211: bridge FDB entry delete for "
4812 MACSTR " ifindex=%d failed: %s", MAC2STR(addr),
4813 bss->ifindex, nl_geterror(err));
4814 } else {
4815 wpa_printf(MSG_DEBUG, "nl80211: deleted bridge FDB entry for "
4816 MACSTR, MAC2STR(addr));
4817 }
4818
4819 nl_addr_put(nl_addr);
4820 rtnl_neigh_put(rn);
4821 #endif /* CONFIG_LIBNL3_ROUTE */
4822 }
4823
4824
4825 static int wpa_driver_nl80211_sta_remove(struct i802_bss *bss, const u8 *addr,
4826 int deauth, u16 reason_code)
4827 {
4828 struct wpa_driver_nl80211_data *drv = bss->drv;
4829 struct nl_msg *msg;
4830 int ret;
4831
4832 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_DEL_STATION)) ||
4833 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
4834 (deauth == 0 &&
4835 nla_put_u8(msg, NL80211_ATTR_MGMT_SUBTYPE,
4836 WLAN_FC_STYPE_DISASSOC)) ||
4837 (deauth == 1 &&
4838 nla_put_u8(msg, NL80211_ATTR_MGMT_SUBTYPE,
4839 WLAN_FC_STYPE_DEAUTH)) ||
4840 (reason_code &&
4841 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code))) {
4842 nlmsg_free(msg);
4843 return -ENOBUFS;
4844 }
4845
4846 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4847 wpa_printf(MSG_DEBUG, "nl80211: sta_remove -> DEL_STATION %s " MACSTR
4848 " --> %d (%s)",
4849 bss->ifname, MAC2STR(addr), ret, strerror(-ret));
4850
4851 if (drv->rtnl_sk)
4852 rtnl_neigh_delete_fdb_entry(bss, addr);
4853
4854 if (ret == -ENOENT)
4855 return 0;
4856 return ret;
4857 }
4858
4859
4860 void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, int ifidx)
4861 {
4862 struct nl_msg *msg;
4863 struct wpa_driver_nl80211_data *drv2;
4864
4865 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx);
4866
4867 /* stop listening for EAPOL on this interface */
4868 dl_list_for_each(drv2, &drv->global->interfaces,
4869 struct wpa_driver_nl80211_data, list)
4870 {
4871 del_ifidx(drv2, ifidx, IFIDX_ANY);
4872 /* Remove all bridges learned for this iface */
4873 del_ifidx(drv2, IFIDX_ANY, ifidx);
4874 }
4875
4876 msg = nl80211_ifindex_msg(drv, ifidx, 0, NL80211_CMD_DEL_INTERFACE);
4877 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
4878 return;
4879 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx);
4880 }
4881
4882
4883 const char * nl80211_iftype_str(enum nl80211_iftype mode)
4884 {
4885 switch (mode) {
4886 case NL80211_IFTYPE_ADHOC:
4887 return "ADHOC";
4888 case NL80211_IFTYPE_STATION:
4889 return "STATION";
4890 case NL80211_IFTYPE_AP:
4891 return "AP";
4892 case NL80211_IFTYPE_AP_VLAN:
4893 return "AP_VLAN";
4894 case NL80211_IFTYPE_WDS:
4895 return "WDS";
4896 case NL80211_IFTYPE_MONITOR:
4897 return "MONITOR";
4898 case NL80211_IFTYPE_MESH_POINT:
4899 return "MESH_POINT";
4900 case NL80211_IFTYPE_P2P_CLIENT:
4901 return "P2P_CLIENT";
4902 case NL80211_IFTYPE_P2P_GO:
4903 return "P2P_GO";
4904 case NL80211_IFTYPE_P2P_DEVICE:
4905 return "P2P_DEVICE";
4906 default:
4907 return "unknown";
4908 }
4909 }
4910
4911
4912 static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv,
4913 const char *ifname,
4914 enum nl80211_iftype iftype,
4915 const u8 *addr, int wds,
4916 int (*handler)(struct nl_msg *, void *),
4917 void *arg)
4918 {
4919 struct nl_msg *msg;
4920 int ifidx;
4921 int ret = -ENOBUFS;
4922
4923 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)",
4924 iftype, nl80211_iftype_str(iftype));
4925
4926 msg = nl80211_cmd_msg(drv->first_bss, 0, NL80211_CMD_NEW_INTERFACE);
4927 if (!msg ||
4928 nla_put_string(msg, NL80211_ATTR_IFNAME, ifname) ||
4929 nla_put_u32(msg, NL80211_ATTR_IFTYPE, iftype))
4930 goto fail;
4931
4932 if (iftype == NL80211_IFTYPE_MONITOR) {
4933 struct nlattr *flags;
4934
4935 flags = nla_nest_start(msg, NL80211_ATTR_MNTR_FLAGS);
4936 if (!flags ||
4937 nla_put_flag(msg, NL80211_MNTR_FLAG_COOK_FRAMES))
4938 goto fail;
4939
4940 nla_nest_end(msg, flags);
4941 } else if (wds) {
4942 if (nla_put_u8(msg, NL80211_ATTR_4ADDR, wds))
4943 goto fail;
4944 }
4945
4946 /*
4947 * Tell cfg80211 that the interface belongs to the socket that created
4948 * it, and the interface should be deleted when the socket is closed.
4949 */
4950 if (nla_put_flag(msg, NL80211_ATTR_IFACE_SOCKET_OWNER))
4951 goto fail;
4952
4953 ret = send_and_recv_msgs(drv, msg, handler, arg);
4954 msg = NULL;
4955 if (ret) {
4956 fail:
4957 nlmsg_free(msg);
4958 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)",
4959 ifname, ret, strerror(-ret));
4960 return ret;
4961 }
4962
4963 if (iftype == NL80211_IFTYPE_P2P_DEVICE)
4964 return 0;
4965
4966 ifidx = if_nametoindex(ifname);
4967 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d",
4968 ifname, ifidx);
4969
4970 if (ifidx <= 0)
4971 return -1;
4972
4973 /*
4974 * Some virtual interfaces need to process EAPOL packets and events on
4975 * the parent interface. This is used mainly with hostapd.
4976 */
4977 if (drv->hostapd ||
4978 iftype == NL80211_IFTYPE_AP_VLAN ||
4979 iftype == NL80211_IFTYPE_WDS ||
4980 iftype == NL80211_IFTYPE_MONITOR) {
4981 /* start listening for EAPOL on this interface */
4982 add_ifidx(drv, ifidx, IFIDX_ANY);
4983 }
4984
4985 if (addr && iftype != NL80211_IFTYPE_MONITOR &&
4986 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) {
4987 nl80211_remove_iface(drv, ifidx);
4988 return -1;
4989 }
4990
4991 return ifidx;
4992 }
4993
4994
4995 int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
4996 const char *ifname, enum nl80211_iftype iftype,
4997 const u8 *addr, int wds,
4998 int (*handler)(struct nl_msg *, void *),
4999 void *arg, int use_existing)
5000 {
5001 int ret;
5002
5003 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds, handler,
5004 arg);
5005
5006 /* if error occurred and interface exists already */
5007 if (ret == -ENFILE && if_nametoindex(ifname)) {
5008 if (use_existing) {
5009 wpa_printf(MSG_DEBUG, "nl80211: Continue using existing interface %s",
5010 ifname);
5011 if (addr && iftype != NL80211_IFTYPE_MONITOR &&
5012 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname,
5013 addr) < 0 &&
5014 (linux_set_iface_flags(drv->global->ioctl_sock,
5015 ifname, 0) < 0 ||
5016 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname,
5017 addr) < 0 ||
5018 linux_set_iface_flags(drv->global->ioctl_sock,
5019 ifname, 1) < 0))
5020 return -1;
5021 return -ENFILE;
5022 }
5023 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname);
5024
5025 /* Try to remove the interface that was already there. */
5026 nl80211_remove_iface(drv, if_nametoindex(ifname));
5027
5028 /* Try to create the interface again */
5029 ret = nl80211_create_iface_once(drv, ifname, iftype, addr,
5030 wds, handler, arg);
5031 }
5032
5033 if (ret >= 0 && is_p2p_net_interface(iftype)) {
5034 wpa_printf(MSG_DEBUG,
5035 "nl80211: Interface %s created for P2P - disable 11b rates",
5036 ifname);
5037 nl80211_disable_11b_rates(drv, ret, 1);
5038 }
5039
5040 return ret;
5041 }
5042
5043
5044 static int nl80211_setup_ap(struct i802_bss *bss)
5045 {
5046 struct wpa_driver_nl80211_data *drv = bss->drv;
5047
5048 wpa_printf(MSG_DEBUG, "nl80211: Setup AP(%s) - device_ap_sme=%d use_monitor=%d",
5049 bss->ifname, drv->device_ap_sme, drv->use_monitor);
5050
5051 /*
5052 * Disable Probe Request reporting unless we need it in this way for
5053 * devices that include the AP SME, in the other case (unless using
5054 * monitor iface) we'll get it through the nl_mgmt socket instead.
5055 */
5056 if (!drv->device_ap_sme)
5057 wpa_driver_nl80211_probe_req_report(bss, 0);
5058
5059 if (!drv->device_ap_sme && !drv->use_monitor)
5060 if (nl80211_mgmt_subscribe_ap(bss))
5061 return -1;
5062
5063 if (drv->device_ap_sme && !drv->use_monitor)
5064 if (nl80211_mgmt_subscribe_ap_dev_sme(bss))
5065 wpa_printf(MSG_DEBUG,
5066 "nl80211: Failed to subscribe for mgmt frames from SME driver - trying to run without it");
5067
5068 if (!drv->device_ap_sme && drv->use_monitor &&
5069 nl80211_create_monitor_interface(drv) &&
5070 !drv->device_ap_sme)
5071 return -1;
5072
5073 if (drv->device_ap_sme &&
5074 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) {
5075 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable "
5076 "Probe Request frame reporting in AP mode");
5077 /* Try to survive without this */
5078 }
5079
5080 return 0;
5081 }
5082
5083
5084 static void nl80211_teardown_ap(struct i802_bss *bss)
5085 {
5086 struct wpa_driver_nl80211_data *drv = bss->drv;
5087
5088 wpa_printf(MSG_DEBUG, "nl80211: Teardown AP(%s) - device_ap_sme=%d use_monitor=%d",
5089 bss->ifname, drv->device_ap_sme, drv->use_monitor);
5090 if (drv->device_ap_sme) {
5091 wpa_driver_nl80211_probe_req_report(bss, 0);
5092 if (!drv->use_monitor)
5093 nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)");
5094 } else if (drv->use_monitor)
5095 nl80211_remove_monitor_interface(drv);
5096 else
5097 nl80211_mgmt_unsubscribe(bss, "AP teardown");
5098
5099 nl80211_put_wiphy_data_ap(bss);
5100 bss->beacon_set = 0;
5101 }
5102
5103
5104 static int nl80211_send_eapol_data(struct i802_bss *bss,
5105 const u8 *addr, const u8 *data,
5106 size_t data_len)
5107 {
5108 struct sockaddr_ll ll;
5109 int ret;
5110
5111 if (bss->drv->eapol_tx_sock < 0) {
5112 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL");
5113 return -1;
5114 }
5115
5116 os_memset(&ll, 0, sizeof(ll));
5117 ll.sll_family = AF_PACKET;
5118 ll.sll_ifindex = bss->ifindex;
5119 ll.sll_protocol = htons(ETH_P_PAE);
5120 ll.sll_halen = ETH_ALEN;
5121 os_memcpy(ll.sll_addr, addr, ETH_ALEN);
5122 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0,
5123 (struct sockaddr *) &ll, sizeof(ll));
5124 if (ret < 0)
5125 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s",
5126 strerror(errno));
5127
5128 return ret;
5129 }
5130
5131
5132 static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
5133
5134 static int wpa_driver_nl80211_hapd_send_eapol(
5135 void *priv, const u8 *addr, const u8 *data,
5136 size_t data_len, int encrypt, const u8 *own_addr, u32 flags)
5137 {
5138 struct i802_bss *bss = priv;
5139 struct wpa_driver_nl80211_data *drv = bss->drv;
5140 struct ieee80211_hdr *hdr;
5141 size_t len;
5142 u8 *pos;
5143 int res;
5144 int qos = flags & WPA_STA_WMM;
5145
5146 if (drv->device_ap_sme || !drv->use_monitor)
5147 return nl80211_send_eapol_data(bss, addr, data, data_len);
5148
5149 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 +
5150 data_len;
5151 hdr = os_zalloc(len);
5152 if (hdr == NULL) {
5153 wpa_printf(MSG_INFO, "nl80211: Failed to allocate EAPOL buffer(len=%lu)",
5154 (unsigned long) len);
5155 return -1;
5156 }
5157
5158 hdr->frame_control =
5159 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA);
5160 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS);
5161 if (encrypt)
5162 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP);
5163 if (qos) {
5164 hdr->frame_control |=
5165 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4);
5166 }
5167
5168 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN);
5169 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
5170 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
5171 pos = (u8 *) (hdr + 1);
5172
5173 if (qos) {
5174 /* Set highest priority in QoS header */
5175 pos[0] = 7;
5176 pos[1] = 0;
5177 pos += 2;
5178 }
5179
5180 memcpy(pos, rfc1042_header, sizeof(rfc1042_header));
5181 pos += sizeof(rfc1042_header);
5182 WPA_PUT_BE16(pos, ETH_P_PAE);
5183 pos += 2;
5184 memcpy(pos, data, data_len);
5185
5186 res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0,
5187 0, 0, 0, 0, NULL, 0);
5188 if (res < 0) {
5189 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - "
5190 "failed: %d (%s)",
5191 (unsigned long) len, errno, strerror(errno));
5192 }
5193 os_free(hdr);
5194
5195 return res;
5196 }
5197
5198
5199 static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr,
5200 unsigned int total_flags,
5201 unsigned int flags_or,
5202 unsigned int flags_and)
5203 {
5204 struct i802_bss *bss = priv;
5205 struct nl_msg *msg;
5206 struct nlattr *flags;
5207 struct nl80211_sta_flag_update upd;
5208
5209 wpa_printf(MSG_DEBUG, "nl80211: Set STA flags - ifname=%s addr=" MACSTR
5210 " total_flags=0x%x flags_or=0x%x flags_and=0x%x authorized=%d",
5211 bss->ifname, MAC2STR(addr), total_flags, flags_or, flags_and,
5212 !!(total_flags & WPA_STA_AUTHORIZED));
5213
5214 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_STATION)) ||
5215 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
5216 goto fail;
5217
5218 /*
5219 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This
5220 * can be removed eventually.
5221 */
5222 flags = nla_nest_start(msg, NL80211_ATTR_STA_FLAGS);
5223 if (!flags ||
5224 ((total_flags & WPA_STA_AUTHORIZED) &&
5225 nla_put_flag(msg, NL80211_STA_FLAG_AUTHORIZED)) ||
5226 ((total_flags & WPA_STA_WMM) &&
5227 nla_put_flag(msg, NL80211_STA_FLAG_WME)) ||
5228 ((total_flags & WPA_STA_SHORT_PREAMBLE) &&
5229 nla_put_flag(msg, NL80211_STA_FLAG_SHORT_PREAMBLE)) ||
5230 ((total_flags & WPA_STA_MFP) &&
5231 nla_put_flag(msg, NL80211_STA_FLAG_MFP)) ||
5232 ((total_flags & WPA_STA_TDLS_PEER) &&
5233 nla_put_flag(msg, NL80211_STA_FLAG_TDLS_PEER)))
5234 goto fail;
5235
5236 nla_nest_end(msg, flags);
5237
5238 os_memset(&upd, 0, sizeof(upd));
5239 upd.mask = sta_flags_nl80211(flags_or | ~flags_and);
5240 upd.set = sta_flags_nl80211(flags_or);
5241 if (nla_put(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd))
5242 goto fail;
5243
5244 return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
5245 fail:
5246 nlmsg_free(msg);
5247 return -ENOBUFS;
5248 }
5249
5250
5251 static int driver_nl80211_sta_set_airtime_weight(void *priv, const u8 *addr,
5252 unsigned int weight)
5253 {
5254 struct i802_bss *bss = priv;
5255 struct nl_msg *msg;
5256
5257 wpa_printf(MSG_DEBUG,
5258 "nl80211: Set STA airtime weight - ifname=%s addr=" MACSTR
5259 " weight=%u", bss->ifname, MAC2STR(addr), weight);
5260
5261 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_STATION)) ||
5262 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
5263 nla_put_u16(msg, NL80211_ATTR_AIRTIME_WEIGHT, weight))
5264 goto fail;
5265
5266 return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
5267 fail:
5268 nlmsg_free(msg);
5269 return -ENOBUFS;
5270 }
5271
5272
5273 static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv,
5274 struct wpa_driver_associate_params *params)
5275 {
5276 enum nl80211_iftype nlmode, old_mode;
5277
5278 if (params->p2p) {
5279 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P "
5280 "group (GO)");
5281 nlmode = NL80211_IFTYPE_P2P_GO;
5282 } else
5283 nlmode = NL80211_IFTYPE_AP;
5284
5285 old_mode = drv->nlmode;
5286 if (wpa_driver_nl80211_set_mode(drv->first_bss, nlmode)) {
5287 nl80211_remove_monitor_interface(drv);
5288 return -1;
5289 }
5290
5291 if (params->freq.freq &&
5292 nl80211_set_channel(drv->first_bss, &params->freq, 0)) {
5293 if (old_mode != nlmode)
5294 wpa_driver_nl80211_set_mode(drv->first_bss, old_mode);
5295 nl80211_remove_monitor_interface(drv);
5296 return -1;
5297 }
5298
5299 return 0;
5300 }
5301
5302
5303 static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv,
5304 int reset_mode)
5305 {
5306 struct nl_msg *msg;
5307 int ret;
5308
5309 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_LEAVE_IBSS);
5310 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5311 if (ret) {
5312 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d "
5313 "(%s)", ret, strerror(-ret));
5314 } else {
5315 wpa_printf(MSG_DEBUG,
5316 "nl80211: Leave IBSS request sent successfully");
5317 }
5318
5319 if (reset_mode &&
5320 wpa_driver_nl80211_set_mode(drv->first_bss,
5321 NL80211_IFTYPE_STATION)) {
5322 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into "
5323 "station mode");
5324 }
5325
5326 return ret;
5327 }
5328
5329
5330 static int nl80211_ht_vht_overrides(struct nl_msg *msg,
5331 struct wpa_driver_associate_params *params)
5332 {
5333 if (params->disable_ht && nla_put_flag(msg, NL80211_ATTR_DISABLE_HT))
5334 return -1;
5335
5336 if (params->htcaps && params->htcaps_mask) {
5337 int sz = sizeof(struct ieee80211_ht_capabilities);
5338 wpa_hexdump(MSG_DEBUG, " * htcaps", params->htcaps, sz);
5339 wpa_hexdump(MSG_DEBUG, " * htcaps_mask",
5340 params->htcaps_mask, sz);
5341 if (nla_put(msg, NL80211_ATTR_HT_CAPABILITY, sz,
5342 params->htcaps) ||
5343 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz,
5344 params->htcaps_mask))
5345 return -1;
5346 }
5347
5348 #ifdef CONFIG_VHT_OVERRIDES
5349 if (params->disable_vht) {
5350 wpa_printf(MSG_DEBUG, " * VHT disabled");
5351 if (nla_put_flag(msg, NL80211_ATTR_DISABLE_VHT))
5352 return -1;
5353 }
5354
5355 if (params->vhtcaps && params->vhtcaps_mask) {
5356 int sz = sizeof(struct ieee80211_vht_capabilities);
5357 wpa_hexdump(MSG_DEBUG, " * vhtcaps", params->vhtcaps, sz);
5358 wpa_hexdump(MSG_DEBUG, " * vhtcaps_mask",
5359 params->vhtcaps_mask, sz);
5360 if (nla_put(msg, NL80211_ATTR_VHT_CAPABILITY, sz,
5361 params->vhtcaps) ||
5362 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz,
5363 params->vhtcaps_mask))
5364 return -1;
5365 }
5366 #endif /* CONFIG_VHT_OVERRIDES */
5367
5368 return 0;
5369 }
5370
5371
5372 static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv,
5373 struct wpa_driver_associate_params *params)
5374 {
5375 struct nl_msg *msg;
5376 int ret = -1;
5377 int count = 0;
5378
5379 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex);
5380
5381 if (wpa_driver_nl80211_set_mode_ibss(drv->first_bss, &params->freq)) {
5382 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into "
5383 "IBSS mode");
5384 return -1;
5385 }
5386
5387 retry:
5388 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_JOIN_IBSS)) ||
5389 params->ssid == NULL || params->ssid_len > sizeof(drv->ssid))
5390 goto fail;
5391
5392 wpa_printf(MSG_DEBUG, " * SSID=%s",
5393 wpa_ssid_txt(params->ssid, params->ssid_len));
5394 if (nla_put(msg, NL80211_ATTR_SSID, params->ssid_len, params->ssid))
5395 goto fail;
5396 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
5397 drv->ssid_len = params->ssid_len;
5398
5399 if (nl80211_put_freq_params(msg, &params->freq) < 0 ||
5400 nl80211_put_beacon_int(msg, params->beacon_int))
5401 goto fail;
5402
5403 ret = nl80211_set_conn_keys(params, msg);
5404 if (ret)
5405 goto fail;
5406
5407 if (params->bssid && params->fixed_bssid) {
5408 wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR,
5409 MAC2STR(params->bssid));
5410 if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid))
5411 goto fail;
5412 }
5413
5414 if (params->fixed_freq) {
5415 wpa_printf(MSG_DEBUG, " * fixed_freq");
5416 if (nla_put_flag(msg, NL80211_ATTR_FREQ_FIXED))
5417 goto fail;
5418 }
5419
5420 if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X ||
5421 params->key_mgmt_suite == WPA_KEY_MGMT_PSK ||
5422 params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SHA256 ||
5423 params->key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256) {
5424 wpa_printf(MSG_DEBUG, " * control port");
5425 if (nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT))
5426 goto fail;
5427 }
5428
5429 if (params->wpa_ie) {
5430 wpa_hexdump(MSG_DEBUG,
5431 " * Extra IEs for Beacon/Probe Response frames",
5432 params->wpa_ie, params->wpa_ie_len);
5433 if (nla_put(msg, NL80211_ATTR_IE, params->wpa_ie_len,
5434 params->wpa_ie))
5435 goto fail;
5436 }
5437
5438 ret = nl80211_ht_vht_overrides(msg, params);
5439 if (ret < 0)
5440 goto fail;
5441
5442 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5443 msg = NULL;
5444 if (ret) {
5445 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)",
5446 ret, strerror(-ret));
5447 count++;
5448 if (ret == -EALREADY && count == 1) {
5449 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after "
5450 "forced leave");
5451 nl80211_leave_ibss(drv, 0);
5452 nlmsg_free(msg);
5453 goto retry;
5454 }
5455 } else {
5456 wpa_printf(MSG_DEBUG,
5457 "nl80211: Join IBSS request sent successfully");
5458 }
5459
5460 fail:
5461 nlmsg_free(msg);
5462 return ret;
5463 }
5464
5465
5466 static int nl80211_put_fils_connect_params(struct wpa_driver_nl80211_data *drv,
5467 struct wpa_driver_associate_params *params,
5468 struct nl_msg *msg)
5469 {
5470 if (params->fils_erp_username_len) {
5471 wpa_hexdump_ascii(MSG_DEBUG, " * FILS ERP EMSKname/username",
5472 params->fils_erp_username,
5473 params->fils_erp_username_len);
5474 if (nla_put(msg, NL80211_ATTR_FILS_ERP_USERNAME,
5475 params->fils_erp_username_len,
5476 params->fils_erp_username))
5477 return -1;
5478 }
5479
5480 if (params->fils_erp_realm_len) {
5481 wpa_hexdump_ascii(MSG_DEBUG, " * FILS ERP Realm",
5482 params->fils_erp_realm,
5483 params->fils_erp_realm_len);
5484 if (nla_put(msg, NL80211_ATTR_FILS_ERP_REALM,
5485 params->fils_erp_realm_len, params->fils_erp_realm))
5486 return -1;
5487 }
5488
5489 wpa_printf(MSG_DEBUG, " * FILS ERP next seq %u",
5490 params->fils_erp_next_seq_num);
5491 if (nla_put_u16(msg, NL80211_ATTR_FILS_ERP_NEXT_SEQ_NUM,
5492 params->fils_erp_next_seq_num))
5493 return -1;
5494
5495 if (params->fils_erp_rrk_len) {
5496 wpa_printf(MSG_DEBUG, " * FILS ERP rRK (len=%lu)",
5497 (unsigned long) params->fils_erp_rrk_len);
5498 if (nla_put(msg, NL80211_ATTR_FILS_ERP_RRK,
5499 params->fils_erp_rrk_len, params->fils_erp_rrk))
5500 return -1;
5501 }
5502
5503 return 0;
5504 }
5505
5506
5507 static int nl80211_connect_common(struct wpa_driver_nl80211_data *drv,
5508 struct wpa_driver_associate_params *params,
5509 struct nl_msg *msg)
5510 {
5511 if (nla_put_flag(msg, NL80211_ATTR_IFACE_SOCKET_OWNER))
5512 return -1;
5513
5514 if (params->bssid) {
5515 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
5516 MAC2STR(params->bssid));
5517 if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid))
5518 return -1;
5519 }
5520
5521 if (params->bssid_hint) {
5522 wpa_printf(MSG_DEBUG, " * bssid_hint=" MACSTR,
5523 MAC2STR(params->bssid_hint));
5524 if (nla_put(msg, NL80211_ATTR_MAC_HINT, ETH_ALEN,
5525 params->bssid_hint))
5526 return -1;
5527 }
5528
5529 if (params->freq.freq) {
5530 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq.freq);
5531 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
5532 params->freq.freq))
5533 return -1;
5534 drv->assoc_freq = params->freq.freq;
5535 } else
5536 drv->assoc_freq = 0;
5537
5538 if (params->freq_hint) {
5539 wpa_printf(MSG_DEBUG, " * freq_hint=%d", params->freq_hint);
5540 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ_HINT,
5541 params->freq_hint))
5542 return -1;
5543 }
5544
5545 if (params->freq.edmg.channels && params->freq.edmg.bw_config) {
5546 wpa_printf(MSG_DEBUG,
5547 " * EDMG configuration: channels=0x%x bw_config=%d",
5548 params->freq.edmg.channels,
5549 params->freq.edmg.bw_config);
5550 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_EDMG_CHANNELS,
5551 params->freq.edmg.channels) ||
5552 nla_put_u8(msg, NL80211_ATTR_WIPHY_EDMG_BW_CONFIG,
5553 params->freq.edmg.bw_config))
5554 return -1;
5555 }
5556
5557 if (params->bg_scan_period >= 0) {
5558 wpa_printf(MSG_DEBUG, " * bg scan period=%d",
5559 params->bg_scan_period);
5560 if (nla_put_u16(msg, NL80211_ATTR_BG_SCAN_PERIOD,
5561 params->bg_scan_period))
5562 return -1;
5563 }
5564
5565 if (params->ssid) {
5566 wpa_printf(MSG_DEBUG, " * SSID=%s",
5567 wpa_ssid_txt(params->ssid, params->ssid_len));
5568 if (nla_put(msg, NL80211_ATTR_SSID, params->ssid_len,
5569 params->ssid))
5570 return -1;
5571 if (params->ssid_len > sizeof(drv->ssid))
5572 return -1;
5573 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
5574 drv->ssid_len = params->ssid_len;
5575 }
5576
5577 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
5578 if (params->wpa_ie &&
5579 nla_put(msg, NL80211_ATTR_IE, params->wpa_ie_len, params->wpa_ie))
5580 return -1;
5581
5582 if (params->wpa_proto) {
5583 enum nl80211_wpa_versions ver = 0;
5584
5585 if (params->wpa_proto & WPA_PROTO_WPA)
5586 ver |= NL80211_WPA_VERSION_1;
5587 if (params->wpa_proto & WPA_PROTO_RSN)
5588 ver |= NL80211_WPA_VERSION_2;
5589
5590 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver);
5591 if (nla_put_u32(msg, NL80211_ATTR_WPA_VERSIONS, ver))
5592 return -1;
5593 }
5594
5595 if (params->pairwise_suite != WPA_CIPHER_NONE) {
5596 u32 cipher = wpa_cipher_to_cipher_suite(params->pairwise_suite);
5597 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher);
5598 if (nla_put_u32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE,
5599 cipher))
5600 return -1;
5601 }
5602
5603 if (params->group_suite == WPA_CIPHER_GTK_NOT_USED &&
5604 !(drv->capa.enc & WPA_DRIVER_CAPA_ENC_GTK_NOT_USED)) {
5605 /*
5606 * This is likely to work even though many drivers do not
5607 * advertise support for operations without GTK.
5608 */
5609 wpa_printf(MSG_DEBUG, " * skip group cipher configuration for GTK_NOT_USED due to missing driver support advertisement");
5610 } else if (params->group_suite != WPA_CIPHER_NONE) {
5611 u32 cipher = wpa_cipher_to_cipher_suite(params->group_suite);
5612 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher);
5613 if (nla_put_u32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher))
5614 return -1;
5615 }
5616
5617 if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X ||
5618 params->key_mgmt_suite == WPA_KEY_MGMT_PSK ||
5619 params->key_mgmt_suite == WPA_KEY_MGMT_FT_IEEE8021X ||
5620 params->key_mgmt_suite == WPA_KEY_MGMT_FT_PSK ||
5621 params->key_mgmt_suite == WPA_KEY_MGMT_CCKM ||
5622 params->key_mgmt_suite == WPA_KEY_MGMT_OSEN ||
5623 params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SHA256 ||
5624 params->key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256 ||
5625 params->key_mgmt_suite == WPA_KEY_MGMT_SAE ||
5626 params->key_mgmt_suite == WPA_KEY_MGMT_FT_SAE ||
5627 params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SUITE_B ||
5628 params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_SUITE_B_192 ||
5629 params->key_mgmt_suite == WPA_KEY_MGMT_FT_IEEE8021X_SHA384 ||
5630 params->key_mgmt_suite == WPA_KEY_MGMT_FILS_SHA256 ||
5631 params->key_mgmt_suite == WPA_KEY_MGMT_FILS_SHA384 ||
5632 params->key_mgmt_suite == WPA_KEY_MGMT_FT_FILS_SHA256 ||
5633 params->key_mgmt_suite == WPA_KEY_MGMT_FT_FILS_SHA384 ||
5634 params->key_mgmt_suite == WPA_KEY_MGMT_OWE ||
5635 params->key_mgmt_suite == WPA_KEY_MGMT_DPP) {
5636 int mgmt = RSN_AUTH_KEY_MGMT_PSK_OVER_802_1X;
5637
5638 switch (params->key_mgmt_suite) {
5639 case WPA_KEY_MGMT_CCKM:
5640 mgmt = RSN_AUTH_KEY_MGMT_CCKM;
5641 break;
5642 case WPA_KEY_MGMT_IEEE8021X:
5643 mgmt = RSN_AUTH_KEY_MGMT_UNSPEC_802_1X;
5644 break;
5645 case WPA_KEY_MGMT_FT_IEEE8021X:
5646 mgmt = RSN_AUTH_KEY_MGMT_FT_802_1X;
5647 break;
5648 case WPA_KEY_MGMT_FT_PSK:
5649 mgmt = RSN_AUTH_KEY_MGMT_FT_PSK;
5650 break;
5651 case WPA_KEY_MGMT_IEEE8021X_SHA256:
5652 mgmt = RSN_AUTH_KEY_MGMT_802_1X_SHA256;
5653 break;
5654 case WPA_KEY_MGMT_PSK_SHA256:
5655 mgmt = RSN_AUTH_KEY_MGMT_PSK_SHA256;
5656 break;
5657 case WPA_KEY_MGMT_OSEN:
5658 mgmt = RSN_AUTH_KEY_MGMT_OSEN;
5659 break;
5660 case WPA_KEY_MGMT_SAE:
5661 mgmt = RSN_AUTH_KEY_MGMT_SAE;
5662 break;
5663 case WPA_KEY_MGMT_FT_SAE:
5664 mgmt = RSN_AUTH_KEY_MGMT_FT_SAE;
5665 break;
5666 case WPA_KEY_MGMT_IEEE8021X_SUITE_B:
5667 mgmt = RSN_AUTH_KEY_MGMT_802_1X_SUITE_B;
5668 break;
5669 case WPA_KEY_MGMT_IEEE8021X_SUITE_B_192:
5670 mgmt = RSN_AUTH_KEY_MGMT_802_1X_SUITE_B_192;
5671 break;
5672 case WPA_KEY_MGMT_FT_IEEE8021X_SHA384:
5673 mgmt = RSN_AUTH_KEY_MGMT_FT_802_1X_SHA384;
5674 break;
5675 case WPA_KEY_MGMT_FILS_SHA256:
5676 mgmt = RSN_AUTH_KEY_MGMT_FILS_SHA256;
5677 break;
5678 case WPA_KEY_MGMT_FILS_SHA384:
5679 mgmt = RSN_AUTH_KEY_MGMT_FILS_SHA384;
5680 break;
5681 case WPA_KEY_MGMT_FT_FILS_SHA256:
5682 mgmt = RSN_AUTH_KEY_MGMT_FT_FILS_SHA256;
5683 break;
5684 case WPA_KEY_MGMT_FT_FILS_SHA384:
5685 mgmt = RSN_AUTH_KEY_MGMT_FT_FILS_SHA384;
5686 break;
5687 case WPA_KEY_MGMT_OWE:
5688 mgmt = RSN_AUTH_KEY_MGMT_OWE;
5689 break;
5690 case WPA_KEY_MGMT_DPP:
5691 mgmt = RSN_AUTH_KEY_MGMT_DPP;
5692 break;
5693 case WPA_KEY_MGMT_PSK:
5694 default:
5695 mgmt = RSN_AUTH_KEY_MGMT_PSK_OVER_802_1X;
5696 break;
5697 }
5698 wpa_printf(MSG_DEBUG, " * akm=0x%x", mgmt);
5699 if (nla_put_u32(msg, NL80211_ATTR_AKM_SUITES, mgmt))
5700 return -1;
5701 }
5702
5703 if (params->req_handshake_offload &&
5704 (drv->capa.flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_8021X)) {
5705 wpa_printf(MSG_DEBUG, " * WANT_1X_4WAY_HS");
5706 if (nla_put_flag(msg, NL80211_ATTR_WANT_1X_4WAY_HS))
5707 return -1;
5708 }
5709
5710 /* Add PSK in case of 4-way handshake offload */
5711 if (params->psk &&
5712 (drv->capa.flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_PSK)) {
5713 wpa_hexdump_key(MSG_DEBUG, " * PSK", params->psk, 32);
5714 if (nla_put(msg, NL80211_ATTR_PMK, 32, params->psk))
5715 return -1;
5716 }
5717
5718 if (nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT))
5719 return -1;
5720
5721 if (params->key_mgmt_suite == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
5722 (params->pairwise_suite == WPA_CIPHER_NONE ||
5723 params->pairwise_suite == WPA_CIPHER_WEP104 ||
5724 params->pairwise_suite == WPA_CIPHER_WEP40) &&
5725 (nla_put_u16(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE, ETH_P_PAE) ||
5726 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT)))
5727 return -1;
5728
5729 if (params->rrm_used) {
5730 u32 drv_rrm_flags = drv->capa.rrm_flags;
5731 if ((!((drv_rrm_flags &
5732 WPA_DRIVER_FLAGS_DS_PARAM_SET_IE_IN_PROBES) &&
5733 (drv_rrm_flags & WPA_DRIVER_FLAGS_QUIET)) &&
5734 !(drv_rrm_flags & WPA_DRIVER_FLAGS_SUPPORT_RRM)) ||
5735 nla_put_flag(msg, NL80211_ATTR_USE_RRM))
5736 return -1;
5737 }
5738
5739 if (nl80211_ht_vht_overrides(msg, params) < 0)
5740 return -1;
5741
5742 if (params->p2p)
5743 wpa_printf(MSG_DEBUG, " * P2P group");
5744
5745 if (params->pbss) {
5746 wpa_printf(MSG_DEBUG, " * PBSS");
5747 if (nla_put_flag(msg, NL80211_ATTR_PBSS))
5748 return -1;
5749 }
5750
5751 drv->connect_reassoc = 0;
5752 if (params->prev_bssid) {
5753 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR,
5754 MAC2STR(params->prev_bssid));
5755 if (nla_put(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN,
5756 params->prev_bssid))
5757 return -1;
5758 drv->connect_reassoc = 1;
5759 }
5760
5761 if ((params->auth_alg & WPA_AUTH_ALG_FILS) &&
5762 nl80211_put_fils_connect_params(drv, params, msg) != 0)
5763 return -1;
5764
5765 if ((params->auth_alg & WPA_AUTH_ALG_SAE) &&
5766 (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) &&
5767 nla_put_flag(msg, NL80211_ATTR_EXTERNAL_AUTH_SUPPORT))
5768 return -1;
5769
5770 return 0;
5771 }
5772
5773
5774 static int wpa_driver_nl80211_try_connect(
5775 struct wpa_driver_nl80211_data *drv,
5776 struct wpa_driver_associate_params *params,
5777 struct nl_handle *nl_connect)
5778 {
5779 struct nl_msg *msg;
5780 enum nl80211_auth_type type;
5781 int ret;
5782 int algs;
5783
5784 #ifdef CONFIG_DRIVER_NL80211_QCA
5785 if (params->req_key_mgmt_offload && params->psk &&
5786 (params->key_mgmt_suite == WPA_KEY_MGMT_PSK ||
5787 params->key_mgmt_suite == WPA_KEY_MGMT_PSK_SHA256 ||
5788 params->key_mgmt_suite == WPA_KEY_MGMT_FT_PSK)) {
5789 wpa_printf(MSG_DEBUG, "nl80211: Key management set PSK");
5790 ret = issue_key_mgmt_set_key(drv, params->psk, 32);
5791 if (ret)
5792 return ret;
5793 }
5794 #endif /* CONFIG_DRIVER_NL80211_QCA */
5795
5796 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex);
5797 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_CONNECT);
5798 if (!msg)
5799 return -1;
5800
5801 ret = nl80211_connect_common(drv, params, msg);
5802 if (ret)
5803 goto fail;
5804
5805 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED &&
5806 nla_put_u32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED))
5807 goto fail;
5808
5809 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_OPTIONAL &&
5810 (drv->capa.flags & WPA_DRIVER_FLAGS_MFP_OPTIONAL) &&
5811 nla_put_u32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_OPTIONAL))
5812 goto fail;
5813
5814 algs = 0;
5815 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
5816 algs++;
5817 if (params->auth_alg & WPA_AUTH_ALG_SHARED)
5818 algs++;
5819 if (params->auth_alg & WPA_AUTH_ALG_LEAP)
5820 algs++;
5821 if (params->auth_alg & WPA_AUTH_ALG_FILS)
5822 algs++;
5823 if (params->auth_alg & WPA_AUTH_ALG_FT)
5824 algs++;
5825 if (algs > 1) {
5826 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic "
5827 "selection");
5828 goto skip_auth_type;
5829 }
5830
5831 type = get_nl_auth_type(params->auth_alg);
5832 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
5833 if (type == NL80211_AUTHTYPE_MAX ||
5834 nla_put_u32(msg, NL80211_ATTR_AUTH_TYPE, type))
5835 goto fail;
5836
5837 skip_auth_type:
5838 ret = nl80211_set_conn_keys(params, msg);
5839 if (ret)
5840 goto fail;
5841
5842 if (nl_connect)
5843 ret = send_and_recv(drv->global, nl_connect, msg,
5844 NULL, (void *) -1);
5845 else
5846 ret = send_and_recv_msgs(drv, msg, NULL, (void *) -1);
5847
5848 msg = NULL;
5849 if (ret) {
5850 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d "
5851 "(%s)", ret, strerror(-ret));
5852 } else {
5853 wpa_printf(MSG_DEBUG,
5854 "nl80211: Connect request send successfully");
5855 }
5856
5857 fail:
5858 nl80211_nlmsg_clear(msg);
5859 nlmsg_free(msg);
5860 return ret;
5861
5862 }
5863
5864
5865 static int wpa_driver_nl80211_connect(
5866 struct wpa_driver_nl80211_data *drv,
5867 struct wpa_driver_associate_params *params,
5868 struct nl_handle *nl_connect)
5869 {
5870 int ret;
5871
5872 /* Store the connection attempted bssid for future use */
5873 if (params->bssid)
5874 os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN);
5875 else
5876 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN);
5877
5878 ret = wpa_driver_nl80211_try_connect(drv, params, nl_connect);
5879 if (ret == -EALREADY) {
5880 /*
5881 * cfg80211 does not currently accept new connections if
5882 * we are already connected. As a workaround, force
5883 * disconnection and try again.
5884 */
5885 wpa_printf(MSG_DEBUG, "nl80211: Explicitly "
5886 "disconnecting before reassociation "
5887 "attempt");
5888 if (wpa_driver_nl80211_disconnect(
5889 drv, WLAN_REASON_PREV_AUTH_NOT_VALID, nl_connect))
5890 return -1;
5891 ret = wpa_driver_nl80211_try_connect(drv, params, nl_connect);
5892 }
5893 return ret;
5894 }
5895
5896
5897 static int wpa_driver_nl80211_associate(
5898 void *priv, struct wpa_driver_associate_params *params)
5899 {
5900 struct i802_bss *bss = priv;
5901 struct wpa_driver_nl80211_data *drv = bss->drv;
5902 int ret = -1;
5903 struct nl_msg *msg;
5904
5905 nl80211_unmask_11b_rates(bss);
5906
5907 if (params->mode == IEEE80211_MODE_AP)
5908 return wpa_driver_nl80211_ap(drv, params);
5909
5910 if (params->mode == IEEE80211_MODE_IBSS)
5911 return wpa_driver_nl80211_ibss(drv, params);
5912
5913 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) {
5914 enum nl80211_iftype nlmode = params->p2p ?
5915 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
5916 struct nl_handle *nl_connect = NULL;
5917
5918 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0)
5919 return -1;
5920 if (params->auth_alg & WPA_AUTH_ALG_SAE) {
5921 nl_connect = bss->nl_connect;
5922 bss->use_nl_connect = 1;
5923 } else {
5924 bss->use_nl_connect = 0;
5925 }
5926
5927 return wpa_driver_nl80211_connect(drv, params, nl_connect);
5928 }
5929
5930 nl80211_mark_disconnected(drv);
5931
5932 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)",
5933 drv->ifindex);
5934 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_ASSOCIATE);
5935 if (!msg)
5936 return -1;
5937
5938 ret = nl80211_connect_common(drv, params, msg);
5939 if (ret)
5940 goto fail;
5941
5942 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED &&
5943 nla_put_u32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED))
5944 goto fail;
5945
5946 if (params->fils_kek) {
5947 wpa_printf(MSG_DEBUG, " * FILS KEK (len=%u)",
5948 (unsigned int) params->fils_kek_len);
5949 if (nla_put(msg, NL80211_ATTR_FILS_KEK, params->fils_kek_len,
5950 params->fils_kek))
5951 goto fail;
5952 }
5953 if (params->fils_nonces) {
5954 wpa_hexdump(MSG_DEBUG, " * FILS nonces (for AAD)",
5955 params->fils_nonces,
5956 params->fils_nonces_len);
5957 if (nla_put(msg, NL80211_ATTR_FILS_NONCES,
5958 params->fils_nonces_len, params->fils_nonces))
5959 goto fail;
5960 }
5961
5962 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5963 msg = NULL;
5964 if (ret) {
5965 wpa_dbg(drv->ctx, MSG_DEBUG,
5966 "nl80211: MLME command failed (assoc): ret=%d (%s)",
5967 ret, strerror(-ret));
5968 nl80211_dump_scan(drv);
5969 } else {
5970 wpa_printf(MSG_DEBUG,
5971 "nl80211: Association request send successfully");
5972 }
5973
5974 fail:
5975 nlmsg_free(msg);
5976 return ret;
5977 }
5978
5979
5980 static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv,
5981 int ifindex, enum nl80211_iftype mode)
5982 {
5983 struct nl_msg *msg;
5984 int ret = -ENOBUFS;
5985
5986 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)",
5987 ifindex, mode, nl80211_iftype_str(mode));
5988
5989 msg = nl80211_cmd_msg(drv->first_bss, 0, NL80211_CMD_SET_INTERFACE);
5990 if (!msg || nla_put_u32(msg, NL80211_ATTR_IFTYPE, mode))
5991 goto fail;
5992
5993 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5994 msg = NULL;
5995 if (!ret)
5996 return 0;
5997 fail:
5998 nlmsg_free(msg);
5999 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:"
6000 " %d (%s)", ifindex, mode, ret, strerror(-ret));
6001 return ret;
6002 }
6003
6004
6005 static int wpa_driver_nl80211_set_mode_impl(
6006 struct i802_bss *bss,
6007 enum nl80211_iftype nlmode,
6008 struct hostapd_freq_params *desired_freq_params)
6009 {
6010 struct wpa_driver_nl80211_data *drv = bss->drv;
6011 int ret = -1;
6012 int i;
6013 int was_ap = is_ap_interface(drv->nlmode);
6014 int res;
6015 int mode_switch_res;
6016
6017 if (TEST_FAIL())
6018 return -1;
6019
6020 mode_switch_res = nl80211_set_mode(drv, drv->ifindex, nlmode);
6021 if (mode_switch_res && nlmode == nl80211_get_ifmode(bss))
6022 mode_switch_res = 0;
6023
6024 if (mode_switch_res == 0) {
6025 drv->nlmode = nlmode;
6026 ret = 0;
6027 goto done;
6028 }
6029
6030 if (mode_switch_res == -ENODEV)
6031 return -1;
6032
6033 if (nlmode == drv->nlmode) {
6034 wpa_printf(MSG_DEBUG, "nl80211: Interface already in "
6035 "requested mode - ignore error");
6036 ret = 0;
6037 goto done; /* Already in the requested mode */
6038 }
6039
6040 /* mac80211 doesn't allow mode changes while the device is up, so
6041 * take the device down, try to set the mode again, and bring the
6042 * device back up.
6043 */
6044 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting "
6045 "interface down");
6046 for (i = 0; i < 10; i++) {
6047 res = i802_set_iface_flags(bss, 0);
6048 if (res == -EACCES || res == -ENODEV)
6049 break;
6050 if (res != 0) {
6051 wpa_printf(MSG_DEBUG, "nl80211: Failed to set "
6052 "interface down");
6053 os_sleep(0, 100000);
6054 continue;
6055 }
6056
6057 /*
6058 * Setting the mode will fail for some drivers if the phy is
6059 * on a frequency that the mode is disallowed in.
6060 */
6061 if (desired_freq_params) {
6062 res = nl80211_set_channel(bss, desired_freq_params, 0);
6063 if (res) {
6064 wpa_printf(MSG_DEBUG,
6065 "nl80211: Failed to set frequency on interface");
6066 }
6067 }
6068
6069 /* Try to set the mode again while the interface is down */
6070 mode_switch_res = nl80211_set_mode(drv, drv->ifindex, nlmode);
6071 if (mode_switch_res == -EBUSY) {
6072 wpa_printf(MSG_DEBUG,
6073 "nl80211: Delaying mode set while interface going down");
6074 os_sleep(0, 100000);
6075 continue;
6076 }
6077 ret = mode_switch_res;
6078 break;
6079 }
6080
6081 if (!ret) {
6082 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while "
6083 "interface is down");
6084 drv->nlmode = nlmode;
6085 drv->ignore_if_down_event = 1;
6086 }
6087
6088 /* Bring the interface back up */
6089 res = linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1);
6090 if (res != 0) {
6091 wpa_printf(MSG_DEBUG,
6092 "nl80211: Failed to set interface up after switching mode");
6093 ret = -1;
6094 }
6095
6096 done:
6097 if (ret) {
6098 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d "
6099 "from %d failed", nlmode, drv->nlmode);
6100 return ret;
6101 }
6102
6103 if (is_p2p_net_interface(nlmode)) {
6104 wpa_printf(MSG_DEBUG,
6105 "nl80211: Interface %s mode change to P2P - disable 11b rates",
6106 bss->ifname);
6107 nl80211_disable_11b_rates(drv, drv->ifindex, 1);
6108 } else if (drv->disabled_11b_rates) {
6109 wpa_printf(MSG_DEBUG,
6110 "nl80211: Interface %s mode changed to non-P2P - re-enable 11b rates",
6111 bss->ifname);
6112 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
6113 }
6114
6115 if (is_ap_interface(nlmode)) {
6116 nl80211_mgmt_unsubscribe(bss, "start AP");
6117 /* Setup additional AP mode functionality if needed */
6118 if (nl80211_setup_ap(bss))
6119 return -1;
6120 } else if (was_ap) {
6121 /* Remove additional AP mode functionality */
6122 nl80211_teardown_ap(bss);
6123 } else {
6124 nl80211_mgmt_unsubscribe(bss, "mode change");
6125 }
6126
6127 if (is_mesh_interface(nlmode) &&
6128 nl80211_mgmt_subscribe_mesh(bss))
6129 return -1;
6130
6131 if (!bss->in_deinit && !is_ap_interface(nlmode) &&
6132 !is_mesh_interface(nlmode) &&
6133 nl80211_mgmt_subscribe_non_ap(bss) < 0)
6134 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action "
6135 "frame processing - ignore for now");
6136
6137 return 0;
6138 }
6139
6140
6141 int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
6142 enum nl80211_iftype nlmode)
6143 {
6144 return wpa_driver_nl80211_set_mode_impl(bss, nlmode, NULL);
6145 }
6146
6147
6148 static int wpa_driver_nl80211_set_mode_ibss(struct i802_bss *bss,
6149 struct hostapd_freq_params *freq)
6150 {
6151 return wpa_driver_nl80211_set_mode_impl(bss, NL80211_IFTYPE_ADHOC,
6152 freq);
6153 }
6154
6155
6156 static int wpa_driver_nl80211_get_capa(void *priv,
6157 struct wpa_driver_capa *capa)
6158 {
6159 struct i802_bss *bss = priv;
6160 struct wpa_driver_nl80211_data *drv = bss->drv;
6161
6162 if (!drv->has_capability)
6163 return -1;
6164 os_memcpy(capa, &drv->capa, sizeof(*capa));
6165 if (drv->extended_capa && drv->extended_capa_mask) {
6166 capa->extended_capa = drv->extended_capa;
6167 capa->extended_capa_mask = drv->extended_capa_mask;
6168 capa->extended_capa_len = drv->extended_capa_len;
6169 }
6170
6171 return 0;
6172 }
6173
6174
6175 static int wpa_driver_nl80211_set_operstate(void *priv, int state)
6176 {
6177 struct i802_bss *bss = priv;
6178 struct wpa_driver_nl80211_data *drv = bss->drv;
6179
6180 wpa_printf(MSG_DEBUG, "nl80211: Set %s operstate %d->%d (%s)",
6181 bss->ifname, drv->operstate, state,
6182 state ? "UP" : "DORMANT");
6183 drv->operstate = state;
6184 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1,
6185 state ? IF_OPER_UP : IF_OPER_DORMANT);
6186 }
6187
6188
6189 static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized)
6190 {
6191 struct i802_bss *bss = priv;
6192 struct wpa_driver_nl80211_data *drv = bss->drv;
6193 struct nl_msg *msg;
6194 struct nl80211_sta_flag_update upd;
6195 int ret;
6196
6197 if (!drv->associated && is_zero_ether_addr(drv->bssid) && !authorized) {
6198 wpa_printf(MSG_DEBUG, "nl80211: Skip set_supp_port(unauthorized) while not associated");
6199 return 0;
6200 }
6201
6202 wpa_printf(MSG_DEBUG, "nl80211: Set supplicant port %sauthorized for "
6203 MACSTR, authorized ? "" : "un", MAC2STR(drv->bssid));
6204
6205 os_memset(&upd, 0, sizeof(upd));
6206 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED);
6207 if (authorized)
6208 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED);
6209
6210 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_STATION)) ||
6211 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid) ||
6212 nla_put(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd)) {
6213 nlmsg_free(msg);
6214 return -ENOBUFS;
6215 }
6216
6217 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6218 if (!ret)
6219 return 0;
6220 wpa_printf(MSG_DEBUG, "nl80211: Failed to set STA flag: %d (%s)",
6221 ret, strerror(-ret));
6222 return ret;
6223 }
6224
6225
6226 /* Set kernel driver on given frequency (MHz) */
6227 static int i802_set_freq(void *priv, struct hostapd_freq_params *freq)
6228 {
6229 struct i802_bss *bss = priv;
6230 return nl80211_set_channel(bss, freq, 0);
6231 }
6232
6233
6234 static inline int min_int(int a, int b)
6235 {
6236 if (a < b)
6237 return a;
6238 return b;
6239 }
6240
6241
6242 static int get_key_handler(struct nl_msg *msg, void *arg)
6243 {
6244 struct nlattr *tb[NL80211_ATTR_MAX + 1];
6245 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
6246
6247 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
6248 genlmsg_attrlen(gnlh, 0), NULL);
6249
6250 /*
6251 * TODO: validate the key index and mac address!
6252 * Otherwise, there's a race condition as soon as
6253 * the kernel starts sending key notifications.
6254 */
6255
6256 if (tb[NL80211_ATTR_KEY_SEQ])
6257 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]),
6258 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6));
6259 nl80211_nlmsg_clear(msg);
6260 return NL_SKIP;
6261 }
6262
6263
6264 static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
6265 int idx, u8 *seq)
6266 {
6267 struct i802_bss *bss = priv;
6268 struct wpa_driver_nl80211_data *drv = bss->drv;
6269 struct nl_msg *msg;
6270
6271 msg = nl80211_ifindex_msg(drv, if_nametoindex(iface), 0,
6272 NL80211_CMD_GET_KEY);
6273 if (!msg ||
6274 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
6275 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, idx)) {
6276 nlmsg_free(msg);
6277 return -ENOBUFS;
6278 }
6279
6280 memset(seq, 0, 6);
6281
6282 return send_and_recv_msgs(drv, msg, get_key_handler, seq);
6283 }
6284
6285
6286 static int i802_set_rts(void *priv, int rts)
6287 {
6288 struct i802_bss *bss = priv;
6289 struct wpa_driver_nl80211_data *drv = bss->drv;
6290 struct nl_msg *msg;
6291 int ret;
6292 u32 val;
6293
6294 if (rts >= 2347 || rts == -1)
6295 val = (u32) -1;
6296 else
6297 val = rts;
6298
6299 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_SET_WIPHY)) ||
6300 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val)) {
6301 nlmsg_free(msg);
6302 return -ENOBUFS;
6303 }
6304
6305 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6306 if (!ret)
6307 return 0;
6308 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: "
6309 "%d (%s)", rts, ret, strerror(-ret));
6310 return ret;
6311 }
6312
6313
6314 static int i802_set_frag(void *priv, int frag)
6315 {
6316 struct i802_bss *bss = priv;
6317 struct wpa_driver_nl80211_data *drv = bss->drv;
6318 struct nl_msg *msg;
6319 int ret;
6320 u32 val;
6321
6322 if (frag >= 2346 || frag == -1)
6323 val = (u32) -1;
6324 else
6325 val = frag;
6326
6327 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_SET_WIPHY)) ||
6328 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val)) {
6329 nlmsg_free(msg);
6330 return -ENOBUFS;
6331 }
6332
6333 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6334 if (!ret)
6335 return 0;
6336 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold "
6337 "%d: %d (%s)", frag, ret, strerror(-ret));
6338 return ret;
6339 }
6340
6341
6342 static int i802_flush(void *priv)
6343 {
6344 struct i802_bss *bss = priv;
6345 struct nl_msg *msg;
6346 int res;
6347
6348 wpa_printf(MSG_DEBUG, "nl80211: flush -> DEL_STATION %s (all)",
6349 bss->ifname);
6350
6351 /*
6352 * XXX: FIX! this needs to flush all VLANs too
6353 */
6354 msg = nl80211_bss_msg(bss, 0, NL80211_CMD_DEL_STATION);
6355 res = send_and_recv_msgs(bss->drv, msg, NULL, NULL);
6356 if (res) {
6357 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d "
6358 "(%s)", res, strerror(-res));
6359 }
6360 return res;
6361 }
6362
6363
6364 static void get_sta_tid_stats(struct hostap_sta_driver_data *data,
6365 struct nlattr *attr)
6366 {
6367 struct nlattr *tid_stats[NL80211_TID_STATS_MAX + 1], *tidattr;
6368 struct nlattr *txq_stats[NL80211_TXQ_STATS_MAX + 1];
6369 static struct nla_policy txq_stats_policy[NL80211_TXQ_STATS_MAX + 1] = {
6370 [NL80211_TXQ_STATS_BACKLOG_BYTES] = { .type = NLA_U32 },
6371 [NL80211_TXQ_STATS_BACKLOG_PACKETS] = { .type = NLA_U32 },
6372 };
6373 int rem;
6374
6375 nla_for_each_nested(tidattr, attr, rem) {
6376 if (nla_parse_nested(tid_stats, NL80211_TID_STATS_MAX,
6377 tidattr, NULL) != 0 ||
6378 !tid_stats[NL80211_TID_STATS_TXQ_STATS] ||
6379 nla_parse_nested(txq_stats, NL80211_TXQ_STATS_MAX,
6380 tid_stats[NL80211_TID_STATS_TXQ_STATS],
6381 txq_stats_policy) != 0)
6382 continue;
6383 /* sum the backlogs over all TIDs for station */
6384 if (txq_stats[NL80211_TXQ_STATS_BACKLOG_BYTES])
6385 data->backlog_bytes += nla_get_u32(
6386 txq_stats[NL80211_TXQ_STATS_BACKLOG_BYTES]);
6387 if (txq_stats[NL80211_TXQ_STATS_BACKLOG_PACKETS])
6388 data->backlog_bytes += nla_get_u32(
6389 txq_stats[NL80211_TXQ_STATS_BACKLOG_PACKETS]);
6390 }
6391 }
6392
6393
6394 static int get_sta_handler(struct nl_msg *msg, void *arg)
6395 {
6396 struct nlattr *tb[NL80211_ATTR_MAX + 1];
6397 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
6398 struct hostap_sta_driver_data *data = arg;
6399 struct nlattr *stats[NL80211_STA_INFO_MAX + 1];
6400 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
6401 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
6402 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
6403 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
6404 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
6405 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
6406 [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 },
6407 [NL80211_STA_INFO_RX_BYTES64] = { .type = NLA_U64 },
6408 [NL80211_STA_INFO_TX_BYTES64] = { .type = NLA_U64 },
6409 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 },
6410 [NL80211_STA_INFO_ACK_SIGNAL] = { .type = NLA_U8 },
6411 [NL80211_STA_INFO_RX_DURATION] = { .type = NLA_U64 },
6412 [NL80211_STA_INFO_TX_DURATION] = { .type = NLA_U64 },
6413 };
6414 struct nlattr *rate[NL80211_RATE_INFO_MAX + 1];
6415 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = {
6416 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 },
6417 [NL80211_RATE_INFO_BITRATE32] = { .type = NLA_U32 },
6418 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 },
6419 [NL80211_RATE_INFO_VHT_MCS] = { .type = NLA_U8 },
6420 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG },
6421 [NL80211_RATE_INFO_VHT_NSS] = { .type = NLA_U8 },
6422 };
6423
6424 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
6425 genlmsg_attrlen(gnlh, 0), NULL);
6426
6427 /*
6428 * TODO: validate the interface and mac address!
6429 * Otherwise, there's a race condition as soon as
6430 * the kernel starts sending station notifications.
6431 */
6432
6433 if (!tb[NL80211_ATTR_STA_INFO]) {
6434 wpa_printf(MSG_DEBUG, "sta stats missing!");
6435 return NL_SKIP;
6436 }
6437 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX,
6438 tb[NL80211_ATTR_STA_INFO],
6439 stats_policy)) {
6440 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!");
6441 return NL_SKIP;
6442 }
6443
6444 if (stats[NL80211_STA_INFO_INACTIVE_TIME])
6445 data->inactive_msec =
6446 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]);
6447 /* For backwards compatibility, fetch the 32-bit counters first. */
6448 if (stats[NL80211_STA_INFO_RX_BYTES])
6449 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]);
6450 if (stats[NL80211_STA_INFO_TX_BYTES])
6451 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]);
6452 if (stats[NL80211_STA_INFO_RX_BYTES64] &&
6453 stats[NL80211_STA_INFO_TX_BYTES64]) {
6454 /*
6455 * The driver supports 64-bit counters, so use them to override
6456 * the 32-bit values.
6457 */
6458 data->rx_bytes =
6459 nla_get_u64(stats[NL80211_STA_INFO_RX_BYTES64]);
6460 data->tx_bytes =
6461 nla_get_u64(stats[NL80211_STA_INFO_TX_BYTES64]);
6462 data->bytes_64bit = 1;
6463 }
6464 if (stats[NL80211_STA_INFO_RX_PACKETS])
6465 data->rx_packets =
6466 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]);
6467 if (stats[NL80211_STA_INFO_TX_PACKETS])
6468 data->tx_packets =
6469 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]);
6470 if (stats[NL80211_STA_INFO_RX_DURATION])
6471 data->rx_airtime =
6472 nla_get_u64(stats[NL80211_STA_INFO_RX_DURATION]);
6473 if (stats[NL80211_STA_INFO_TX_DURATION])
6474 data->tx_airtime =
6475 nla_get_u64(stats[NL80211_STA_INFO_TX_DURATION]);
6476 if (stats[NL80211_STA_INFO_TX_FAILED])
6477 data->tx_retry_failed =
6478 nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]);
6479 if (stats[NL80211_STA_INFO_SIGNAL])
6480 data->signal = nla_get_u8(stats[NL80211_STA_INFO_SIGNAL]);
6481 if (stats[NL80211_STA_INFO_ACK_SIGNAL]) {
6482 data->last_ack_rssi =
6483 nla_get_u8(stats[NL80211_STA_INFO_ACK_SIGNAL]);
6484 data->flags |= STA_DRV_DATA_LAST_ACK_RSSI;
6485 }
6486
6487 if (stats[NL80211_STA_INFO_TX_BITRATE] &&
6488 nla_parse_nested(rate, NL80211_RATE_INFO_MAX,
6489 stats[NL80211_STA_INFO_TX_BITRATE],
6490 rate_policy) == 0) {
6491 if (rate[NL80211_RATE_INFO_BITRATE32])
6492 data->current_tx_rate =
6493 nla_get_u32(rate[NL80211_RATE_INFO_BITRATE32]);
6494 else if (rate[NL80211_RATE_INFO_BITRATE])
6495 data->current_tx_rate =
6496 nla_get_u16(rate[NL80211_RATE_INFO_BITRATE]);
6497
6498 if (rate[NL80211_RATE_INFO_MCS]) {
6499 data->tx_mcs = nla_get_u8(rate[NL80211_RATE_INFO_MCS]);
6500 data->flags |= STA_DRV_DATA_TX_MCS;
6501 }
6502 if (rate[NL80211_RATE_INFO_VHT_MCS]) {
6503 data->tx_vhtmcs =
6504 nla_get_u8(rate[NL80211_RATE_INFO_VHT_MCS]);
6505 data->flags |= STA_DRV_DATA_TX_VHT_MCS;
6506 }
6507 if (rate[NL80211_RATE_INFO_SHORT_GI])
6508 data->flags |= STA_DRV_DATA_TX_SHORT_GI;
6509 if (rate[NL80211_RATE_INFO_VHT_NSS]) {
6510 data->tx_vht_nss =
6511 nla_get_u8(rate[NL80211_RATE_INFO_VHT_NSS]);
6512 data->flags |= STA_DRV_DATA_TX_VHT_NSS;
6513 }
6514 }
6515
6516 if (stats[NL80211_STA_INFO_RX_BITRATE] &&
6517 nla_parse_nested(rate, NL80211_RATE_INFO_MAX,
6518 stats[NL80211_STA_INFO_RX_BITRATE],
6519 rate_policy) == 0) {
6520 if (rate[NL80211_RATE_INFO_BITRATE32])
6521 data->current_rx_rate =
6522 nla_get_u32(rate[NL80211_RATE_INFO_BITRATE32]);
6523 else if (rate[NL80211_RATE_INFO_BITRATE])
6524 data->current_rx_rate =
6525 nla_get_u16(rate[NL80211_RATE_INFO_BITRATE]);
6526
6527 if (rate[NL80211_RATE_INFO_MCS]) {
6528 data->rx_mcs =
6529 nla_get_u8(rate[NL80211_RATE_INFO_MCS]);
6530 data->flags |= STA_DRV_DATA_RX_MCS;
6531 }
6532 if (rate[NL80211_RATE_INFO_VHT_MCS]) {
6533 data->rx_vhtmcs =
6534 nla_get_u8(rate[NL80211_RATE_INFO_VHT_MCS]);
6535 data->flags |= STA_DRV_DATA_RX_VHT_MCS;
6536 }
6537 if (rate[NL80211_RATE_INFO_SHORT_GI])
6538 data->flags |= STA_DRV_DATA_RX_SHORT_GI;
6539 if (rate[NL80211_RATE_INFO_VHT_NSS]) {
6540 data->rx_vht_nss =
6541 nla_get_u8(rate[NL80211_RATE_INFO_VHT_NSS]);
6542 data->flags |= STA_DRV_DATA_RX_VHT_NSS;
6543 }
6544 }
6545
6546 if (stats[NL80211_STA_INFO_TID_STATS])
6547 get_sta_tid_stats(data, stats[NL80211_STA_INFO_TID_STATS]);
6548
6549 return NL_SKIP;
6550 }
6551
6552 static int i802_read_sta_data(struct i802_bss *bss,
6553 struct hostap_sta_driver_data *data,
6554 const u8 *addr)
6555 {
6556 struct nl_msg *msg;
6557
6558 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_GET_STATION)) ||
6559 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) {
6560 nlmsg_free(msg);
6561 return -ENOBUFS;
6562 }
6563
6564 return send_and_recv_msgs(bss->drv, msg, get_sta_handler, data);
6565 }
6566
6567
6568 static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
6569 int cw_min, int cw_max, int burst_time)
6570 {
6571 struct i802_bss *bss = priv;
6572 struct wpa_driver_nl80211_data *drv = bss->drv;
6573 struct nl_msg *msg;
6574 struct nlattr *txq, *params;
6575 int res;
6576
6577 msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_WIPHY);
6578 if (!msg)
6579 return -1;
6580
6581 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS);
6582 if (!txq)
6583 goto fail;
6584
6585 /* We are only sending parameters for a single TXQ at a time */
6586 params = nla_nest_start(msg, 1);
6587 if (!params)
6588 goto fail;
6589
6590 switch (queue) {
6591 case 0:
6592 if (nla_put_u8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO))
6593 goto fail;
6594 break;
6595 case 1:
6596 if (nla_put_u8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI))
6597 goto fail;
6598 break;
6599 case 2:
6600 if (nla_put_u8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE))
6601 goto fail;
6602 break;
6603 case 3:
6604 if (nla_put_u8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK))
6605 goto fail;
6606 break;
6607 }
6608 /* Burst time is configured in units of 0.1 msec and TXOP parameter in
6609 * 32 usec, so need to convert the value here. */
6610 if (nla_put_u16(msg, NL80211_TXQ_ATTR_TXOP,
6611 (burst_time * 100 + 16) / 32) ||
6612 nla_put_u16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min) ||
6613 nla_put_u16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max) ||
6614 nla_put_u8(msg, NL80211_TXQ_ATTR_AIFS, aifs))
6615 goto fail;
6616
6617 nla_nest_end(msg, params);
6618
6619 nla_nest_end(msg, txq);
6620
6621 res = send_and_recv_msgs(drv, msg, NULL, NULL);
6622 wpa_printf(MSG_DEBUG,
6623 "nl80211: TX queue param set: queue=%d aifs=%d cw_min=%d cw_max=%d burst_time=%d --> res=%d",
6624 queue, aifs, cw_min, cw_max, burst_time, res);
6625 if (res == 0)
6626 return 0;
6627 msg = NULL;
6628 fail:
6629 nlmsg_free(msg);
6630 return -1;
6631 }
6632
6633
6634 static int i802_set_sta_vlan(struct i802_bss *bss, const u8 *addr,
6635 const char *ifname, int vlan_id)
6636 {
6637 struct wpa_driver_nl80211_data *drv = bss->drv;
6638 struct nl_msg *msg;
6639 int ret;
6640
6641 wpa_printf(MSG_DEBUG, "nl80211: %s[%d]: set_sta_vlan(" MACSTR
6642 ", ifname=%s[%d], vlan_id=%d)",
6643 bss->ifname, if_nametoindex(bss->ifname),
6644 MAC2STR(addr), ifname, if_nametoindex(ifname), vlan_id);
6645 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_STATION)) ||
6646 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
6647 nla_put_u32(msg, NL80211_ATTR_STA_VLAN, if_nametoindex(ifname))) {
6648 nlmsg_free(msg);
6649 return -ENOBUFS;
6650 }
6651
6652 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6653 if (ret < 0) {
6654 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr="
6655 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)",
6656 MAC2STR(addr), ifname, vlan_id, ret,
6657 strerror(-ret));
6658 }
6659 return ret;
6660 }
6661
6662
6663 static int i802_get_inact_sec(void *priv, const u8 *addr)
6664 {
6665 struct hostap_sta_driver_data data;
6666 int ret;
6667
6668 os_memset(&data, 0, sizeof(data));
6669 data.inactive_msec = (unsigned long) -1;
6670 ret = i802_read_sta_data(priv, &data, addr);
6671 if (ret == -ENOENT)
6672 return -ENOENT;
6673 if (ret || data.inactive_msec == (unsigned long) -1)
6674 return -1;
6675 return data.inactive_msec / 1000;
6676 }
6677
6678
6679 static int i802_sta_clear_stats(void *priv, const u8 *addr)
6680 {
6681 #if 0
6682 /* TODO */
6683 #endif
6684 return 0;
6685 }
6686
6687
6688 static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
6689 u16 reason)
6690 {
6691 struct i802_bss *bss = priv;
6692 struct wpa_driver_nl80211_data *drv = bss->drv;
6693 struct ieee80211_mgmt mgmt;
6694 u8 channel;
6695
6696 if (ieee80211_freq_to_chan(bss->freq, &channel) ==
6697 HOSTAPD_MODE_IEEE80211AD) {
6698 /* Deauthentication is not used in DMG/IEEE 802.11ad;
6699 * disassociate the STA instead. */
6700 return i802_sta_disassoc(priv, own_addr, addr, reason);
6701 }
6702
6703 if (is_mesh_interface(drv->nlmode))
6704 return -1;
6705
6706 if (drv->device_ap_sme)
6707 return wpa_driver_nl80211_sta_remove(bss, addr, 1, reason);
6708
6709 memset(&mgmt, 0, sizeof(mgmt));
6710 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
6711 WLAN_FC_STYPE_DEAUTH);
6712 memcpy(mgmt.da, addr, ETH_ALEN);
6713 memcpy(mgmt.sa, own_addr, ETH_ALEN);
6714 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
6715 mgmt.u.deauth.reason_code = host_to_le16(reason);
6716 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
6717 IEEE80211_HDRLEN +
6718 sizeof(mgmt.u.deauth), 0, 0, 0, 0,
6719 0, NULL, 0);
6720 }
6721
6722
6723 static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
6724 u16 reason)
6725 {
6726 struct i802_bss *bss = priv;
6727 struct wpa_driver_nl80211_data *drv = bss->drv;
6728 struct ieee80211_mgmt mgmt;
6729
6730 if (is_mesh_interface(drv->nlmode))
6731 return -1;
6732
6733 if (drv->device_ap_sme)
6734 return wpa_driver_nl80211_sta_remove(bss, addr, 0, reason);
6735
6736 memset(&mgmt, 0, sizeof(mgmt));
6737 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
6738 WLAN_FC_STYPE_DISASSOC);
6739 memcpy(mgmt.da, addr, ETH_ALEN);
6740 memcpy(mgmt.sa, own_addr, ETH_ALEN);
6741 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
6742 mgmt.u.disassoc.reason_code = host_to_le16(reason);
6743 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
6744 IEEE80211_HDRLEN +
6745 sizeof(mgmt.u.disassoc), 0, 0, 0, 0,
6746 0, NULL, 0);
6747 }
6748
6749
6750 static void dump_ifidx(struct wpa_driver_nl80211_data *drv)
6751 {
6752 char buf[200], *pos, *end;
6753 int i, res;
6754
6755 pos = buf;
6756 end = pos + sizeof(buf);
6757
6758 for (i = 0; i < drv->num_if_indices; i++) {
6759 if (!drv->if_indices[i].ifindex)
6760 continue;
6761 res = os_snprintf(pos, end - pos, " %d(%d)",
6762 drv->if_indices[i].ifindex,
6763 drv->if_indices[i].reason);
6764 if (os_snprintf_error(end - pos, res))
6765 break;
6766 pos += res;
6767 }
6768 *pos = '\0';
6769
6770 wpa_printf(MSG_DEBUG, "nl80211: if_indices[%d]:%s",
6771 drv->num_if_indices, buf);
6772 }
6773
6774
6775 static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx,
6776 int ifidx_reason)
6777 {
6778 int i;
6779 struct drv_nl80211_if_info *old;
6780
6781 wpa_printf(MSG_DEBUG,
6782 "nl80211: Add own interface ifindex %d (ifidx_reason %d)",
6783 ifidx, ifidx_reason);
6784 if (have_ifidx(drv, ifidx, ifidx_reason)) {
6785 wpa_printf(MSG_DEBUG, "nl80211: ifindex %d already in the list",
6786 ifidx);
6787 return;
6788 }
6789 for (i = 0; i < drv->num_if_indices; i++) {
6790 if (drv->if_indices[i].ifindex == 0) {
6791 drv->if_indices[i].ifindex = ifidx;
6792 drv->if_indices[i].reason = ifidx_reason;
6793 dump_ifidx(drv);
6794 return;
6795 }
6796 }
6797
6798 if (drv->if_indices != drv->default_if_indices)
6799 old = drv->if_indices;
6800 else
6801 old = NULL;
6802
6803 drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1,
6804 sizeof(*old));
6805 if (!drv->if_indices) {
6806 if (!old)
6807 drv->if_indices = drv->default_if_indices;
6808 else
6809 drv->if_indices = old;
6810 wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
6811 "interfaces");
6812 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
6813 return;
6814 }
6815 if (!old)
6816 os_memcpy(drv->if_indices, drv->default_if_indices,
6817 sizeof(drv->default_if_indices));
6818 drv->if_indices[drv->num_if_indices].ifindex = ifidx;
6819 drv->if_indices[drv->num_if_indices].reason = ifidx_reason;
6820 drv->num_if_indices++;
6821 dump_ifidx(drv);
6822 }
6823
6824
6825 static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx,
6826 int ifidx_reason)
6827 {
6828 int i;
6829
6830 for (i = 0; i < drv->num_if_indices; i++) {
6831 if ((drv->if_indices[i].ifindex == ifidx ||
6832 ifidx == IFIDX_ANY) &&
6833 (drv->if_indices[i].reason == ifidx_reason ||
6834 ifidx_reason == IFIDX_ANY)) {
6835 drv->if_indices[i].ifindex = 0;
6836 drv->if_indices[i].reason = 0;
6837 break;
6838 }
6839 }
6840 dump_ifidx(drv);
6841 }
6842
6843
6844 static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx,
6845 int ifidx_reason)
6846 {
6847 int i;
6848
6849 for (i = 0; i < drv->num_if_indices; i++)
6850 if (drv->if_indices[i].ifindex == ifidx &&
6851 (drv->if_indices[i].reason == ifidx_reason ||
6852 ifidx_reason == IFIDX_ANY))
6853 return 1;
6854
6855 return 0;
6856 }
6857
6858
6859 static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val,
6860 const char *bridge_ifname, char *ifname_wds)
6861 {
6862 struct i802_bss *bss = priv;
6863 struct wpa_driver_nl80211_data *drv = bss->drv;
6864 char name[IFNAMSIZ + 1];
6865 union wpa_event_data event;
6866 int ret;
6867
6868 ret = os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid);
6869 if (ret >= (int) sizeof(name))
6870 wpa_printf(MSG_WARNING,
6871 "nl80211: WDS interface name was truncated");
6872 else if (ret < 0)
6873 return ret;
6874
6875 if (ifname_wds)
6876 os_strlcpy(ifname_wds, name, IFNAMSIZ + 1);
6877
6878 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR
6879 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name);
6880 if (val) {
6881 if (!if_nametoindex(name)) {
6882 if (nl80211_create_iface(drv, name,
6883 NL80211_IFTYPE_AP_VLAN,
6884 bss->addr, 1, NULL, NULL, 0) <
6885 0)
6886 return -1;
6887 if (bridge_ifname &&
6888 linux_br_add_if(drv->global->ioctl_sock,
6889 bridge_ifname, name) < 0)
6890 return -1;
6891
6892 os_memset(&event, 0, sizeof(event));
6893 event.wds_sta_interface.sta_addr = addr;
6894 event.wds_sta_interface.ifname = name;
6895 event.wds_sta_interface.istatus = INTERFACE_ADDED;
6896 wpa_supplicant_event(bss->ctx,
6897 EVENT_WDS_STA_INTERFACE_STATUS,
6898 &event);
6899 }
6900 if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) {
6901 wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA "
6902 "interface %s up", name);
6903 }
6904 return i802_set_sta_vlan(priv, addr, name, 0);
6905 } else {
6906 if (bridge_ifname &&
6907 linux_br_del_if(drv->global->ioctl_sock, bridge_ifname,
6908 name) < 0)
6909 wpa_printf(MSG_INFO,
6910 "nl80211: Failed to remove interface %s from bridge %s: %s",
6911 name, bridge_ifname, strerror(errno));
6912
6913 i802_set_sta_vlan(priv, addr, bss->ifname, 0);
6914 nl80211_remove_iface(drv, if_nametoindex(name));
6915 os_memset(&event, 0, sizeof(event));
6916 event.wds_sta_interface.sta_addr = addr;
6917 event.wds_sta_interface.ifname = name;
6918 event.wds_sta_interface.istatus = INTERFACE_REMOVED;
6919 wpa_supplicant_event(bss->ctx, EVENT_WDS_STA_INTERFACE_STATUS,
6920 &event);
6921 return 0;
6922 }
6923 }
6924
6925
6926 static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
6927 {
6928 struct wpa_driver_nl80211_data *drv = eloop_ctx;
6929 struct sockaddr_ll lladdr;
6930 unsigned char buf[3000];
6931 int len;
6932 socklen_t fromlen = sizeof(lladdr);
6933
6934 len = recvfrom(sock, buf, sizeof(buf), 0,
6935 (struct sockaddr *)&lladdr, &fromlen);
6936 if (len < 0) {
6937 wpa_printf(MSG_ERROR, "nl80211: EAPOL recv failed: %s",
6938 strerror(errno));
6939 return;
6940 }
6941
6942 if (have_ifidx(drv, lladdr.sll_ifindex, IFIDX_ANY))
6943 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len);
6944 }
6945
6946
6947 static int i802_check_bridge(struct wpa_driver_nl80211_data *drv,
6948 struct i802_bss *bss,
6949 const char *brname, const char *ifname)
6950 {
6951 int br_ifindex;
6952 char in_br[IFNAMSIZ];
6953
6954 os_strlcpy(bss->brname, brname, IFNAMSIZ);
6955 br_ifindex = if_nametoindex(brname);
6956 if (br_ifindex == 0) {
6957 /*
6958 * Bridge was configured, but the bridge device does
6959 * not exist. Try to add it now.
6960 */
6961 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) {
6962 wpa_printf(MSG_ERROR, "nl80211: Failed to add the "
6963 "bridge interface %s: %s",
6964 brname, strerror(errno));
6965 return -1;
6966 }
6967 bss->added_bridge = 1;
6968 br_ifindex = if_nametoindex(brname);
6969 add_ifidx(drv, br_ifindex, drv->ifindex);
6970 }
6971 bss->br_ifindex = br_ifindex;
6972
6973 if (linux_br_get(in_br, ifname) == 0) {
6974 if (os_strcmp(in_br, brname) == 0) {
6975 bss->already_in_bridge = 1;
6976 return 0; /* already in the bridge */
6977 }
6978
6979 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from "
6980 "bridge %s", ifname, in_br);
6981 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) <
6982 0) {
6983 wpa_printf(MSG_ERROR, "nl80211: Failed to "
6984 "remove interface %s from bridge "
6985 "%s: %s",
6986 ifname, in_br, strerror(errno));
6987 return -1;
6988 }
6989 }
6990
6991 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s",
6992 ifname, brname);
6993 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) {
6994 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s "
6995 "into bridge %s: %s",
6996 ifname, brname, strerror(errno));
6997 return -1;
6998 }
6999 bss->added_if_into_bridge = 1;
7000
7001 return 0;
7002 }
7003
7004
7005 static void *i802_init(struct hostapd_data *hapd,
7006 struct wpa_init_params *params)
7007 {
7008 struct wpa_driver_nl80211_data *drv;
7009 struct i802_bss *bss;
7010 size_t i;
7011 char master_ifname[IFNAMSIZ];
7012 int ifindex, br_ifindex = 0;
7013 int br_added = 0;
7014
7015 bss = wpa_driver_nl80211_drv_init(hapd, params->ifname,
7016 params->global_priv, 1,
7017 params->bssid, params->driver_params);
7018 if (bss == NULL)
7019 return NULL;
7020
7021 drv = bss->drv;
7022
7023 if (linux_br_get(master_ifname, params->ifname) == 0) {
7024 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s",
7025 params->ifname, master_ifname);
7026 br_ifindex = if_nametoindex(master_ifname);
7027 os_strlcpy(bss->brname, master_ifname, IFNAMSIZ);
7028 } else if ((params->num_bridge == 0 || !params->bridge[0]) &&
7029 linux_master_get(master_ifname, params->ifname) == 0) {
7030 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in master %s",
7031 params->ifname, master_ifname);
7032 /* start listening for EAPOL on the master interface */
7033 add_ifidx(drv, if_nametoindex(master_ifname), drv->ifindex);
7034
7035 /* check if master itself is under bridge */
7036 if (linux_br_get(master_ifname, master_ifname) == 0) {
7037 wpa_printf(MSG_DEBUG, "nl80211: which is in bridge %s",
7038 master_ifname);
7039 br_ifindex = if_nametoindex(master_ifname);
7040 os_strlcpy(bss->brname, master_ifname, IFNAMSIZ);
7041 }
7042 } else {
7043 master_ifname[0] = '\0';
7044 }
7045
7046 bss->br_ifindex = br_ifindex;
7047
7048 for (i = 0; i < params->num_bridge; i++) {
7049 if (params->bridge[i]) {
7050 ifindex = if_nametoindex(params->bridge[i]);
7051 if (ifindex)
7052 add_ifidx(drv, ifindex, drv->ifindex);
7053 if (ifindex == br_ifindex)
7054 br_added = 1;
7055 }
7056 }
7057
7058 /* start listening for EAPOL on the default AP interface */
7059 add_ifidx(drv, drv->ifindex, IFIDX_ANY);
7060
7061 if (params->num_bridge && params->bridge[0]) {
7062 if (i802_check_bridge(drv, bss, params->bridge[0],
7063 params->ifname) < 0)
7064 goto failed;
7065 if (os_strcmp(params->bridge[0], master_ifname) != 0)
7066 br_added = 1;
7067 }
7068
7069 if (!br_added && br_ifindex &&
7070 (params->num_bridge == 0 || !params->bridge[0]))
7071 add_ifidx(drv, br_ifindex, drv->ifindex);
7072
7073 #ifdef CONFIG_LIBNL3_ROUTE
7074 if (bss->added_if_into_bridge || bss->already_in_bridge) {
7075 drv->rtnl_sk = nl_socket_alloc();
7076 if (drv->rtnl_sk == NULL) {
7077 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate nl_sock");
7078 goto failed;
7079 }
7080
7081 if (nl_connect(drv->rtnl_sk, NETLINK_ROUTE)) {
7082 wpa_printf(MSG_ERROR, "nl80211: Failed to connect nl_sock to NETLINK_ROUTE: %s",
7083 strerror(errno));
7084 goto failed;
7085 }
7086 }
7087 #endif /* CONFIG_LIBNL3_ROUTE */
7088
7089 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE));
7090 if (drv->eapol_sock < 0) {
7091 wpa_printf(MSG_ERROR, "nl80211: socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE) failed: %s",
7092 strerror(errno));
7093 goto failed;
7094 }
7095
7096 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL))
7097 {
7098 wpa_printf(MSG_INFO, "nl80211: Could not register read socket for eapol");
7099 goto failed;
7100 }
7101
7102 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
7103 params->own_addr))
7104 goto failed;
7105 os_memcpy(drv->perm_addr, params->own_addr, ETH_ALEN);
7106
7107 memcpy(bss->addr, params->own_addr, ETH_ALEN);
7108
7109 return bss;
7110
7111 failed:
7112 wpa_driver_nl80211_deinit(bss);
7113 return NULL;
7114 }
7115
7116
7117 static void i802_deinit(void *priv)
7118 {
7119 struct i802_bss *bss = priv;
7120 wpa_driver_nl80211_deinit(bss);
7121 }
7122
7123
7124 static enum nl80211_iftype wpa_driver_nl80211_if_type(
7125 enum wpa_driver_if_type type)
7126 {
7127 switch (type) {
7128 case WPA_IF_STATION:
7129 return NL80211_IFTYPE_STATION;
7130 case WPA_IF_P2P_CLIENT:
7131 case WPA_IF_P2P_GROUP:
7132 return NL80211_IFTYPE_P2P_CLIENT;
7133 case WPA_IF_AP_VLAN:
7134 return NL80211_IFTYPE_AP_VLAN;
7135 case WPA_IF_AP_BSS:
7136 return NL80211_IFTYPE_AP;
7137 case WPA_IF_P2P_GO:
7138 return NL80211_IFTYPE_P2P_GO;
7139 case WPA_IF_P2P_DEVICE:
7140 return NL80211_IFTYPE_P2P_DEVICE;
7141 case WPA_IF_MESH:
7142 return NL80211_IFTYPE_MESH_POINT;
7143 default:
7144 return -1;
7145 }
7146 }
7147
7148
7149 static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr)
7150 {
7151 struct wpa_driver_nl80211_data *drv;
7152 dl_list_for_each(drv, &global->interfaces,
7153 struct wpa_driver_nl80211_data, list) {
7154 if (os_memcmp(addr, drv->first_bss->addr, ETH_ALEN) == 0)
7155 return 1;
7156 }
7157 return 0;
7158 }
7159
7160
7161 static int nl80211_vif_addr(struct wpa_driver_nl80211_data *drv, u8 *new_addr)
7162 {
7163 unsigned int idx;
7164
7165 if (!drv->global)
7166 return -1;
7167
7168 os_memcpy(new_addr, drv->first_bss->addr, ETH_ALEN);
7169 for (idx = 0; idx < 64; idx++) {
7170 new_addr[0] = drv->first_bss->addr[0] | 0x02;
7171 new_addr[0] ^= idx << 2;
7172 if (!nl80211_addr_in_use(drv->global, new_addr))
7173 break;
7174 }
7175 if (idx == 64)
7176 return -1;
7177
7178 wpa_printf(MSG_DEBUG, "nl80211: Assigned new virtual interface address "
7179 MACSTR, MAC2STR(new_addr));
7180
7181 return 0;
7182 }
7183
7184
7185 struct wdev_info {
7186 u64 wdev_id;
7187 int wdev_id_set;
7188 u8 macaddr[ETH_ALEN];
7189 };
7190
7191 static int nl80211_wdev_handler(struct nl_msg *msg, void *arg)
7192 {
7193 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
7194 struct nlattr *tb[NL80211_ATTR_MAX + 1];
7195 struct wdev_info *wi = arg;
7196
7197 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
7198 genlmsg_attrlen(gnlh, 0), NULL);
7199 if (tb[NL80211_ATTR_WDEV]) {
7200 wi->wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]);
7201 wi->wdev_id_set = 1;
7202 }
7203
7204 if (tb[NL80211_ATTR_MAC])
7205 os_memcpy(wi->macaddr, nla_data(tb[NL80211_ATTR_MAC]),
7206 ETH_ALEN);
7207
7208 return NL_SKIP;
7209 }
7210
7211
7212 static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type,
7213 const char *ifname, const u8 *addr,
7214 void *bss_ctx, void **drv_priv,
7215 char *force_ifname, u8 *if_addr,
7216 const char *bridge, int use_existing,
7217 int setup_ap)
7218 {
7219 enum nl80211_iftype nlmode;
7220 struct i802_bss *bss = priv;
7221 struct wpa_driver_nl80211_data *drv = bss->drv;
7222 int ifidx;
7223 int added = 1;
7224
7225 if (addr)
7226 os_memcpy(if_addr, addr, ETH_ALEN);
7227 nlmode = wpa_driver_nl80211_if_type(type);
7228 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) {
7229 struct wdev_info p2pdev_info;
7230
7231 os_memset(&p2pdev_info, 0, sizeof(p2pdev_info));
7232 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr,
7233 0, nl80211_wdev_handler,
7234 &p2pdev_info, use_existing);
7235 if (!p2pdev_info.wdev_id_set || ifidx != 0) {
7236 wpa_printf(MSG_ERROR, "nl80211: Failed to create a P2P Device interface %s",
7237 ifname);
7238 return -1;
7239 }
7240
7241 drv->global->if_add_wdevid = p2pdev_info.wdev_id;
7242 drv->global->if_add_wdevid_set = p2pdev_info.wdev_id_set;
7243 if (!is_zero_ether_addr(p2pdev_info.macaddr))
7244 os_memcpy(if_addr, p2pdev_info.macaddr, ETH_ALEN);
7245 wpa_printf(MSG_DEBUG, "nl80211: New P2P Device interface %s (0x%llx) created",
7246 ifname,
7247 (long long unsigned int) p2pdev_info.wdev_id);
7248 } else {
7249 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr,
7250 0, NULL, NULL, use_existing);
7251 if (use_existing && ifidx == -ENFILE) {
7252 added = 0;
7253 ifidx = if_nametoindex(ifname);
7254 } else if (ifidx < 0) {
7255 return -1;
7256 }
7257 }
7258
7259 if (!addr) {
7260 if (nlmode == NL80211_IFTYPE_P2P_DEVICE)
7261 os_memcpy(if_addr, bss->addr, ETH_ALEN);
7262 else if (linux_get_ifhwaddr(drv->global->ioctl_sock,
7263 ifname, if_addr) < 0) {
7264 if (added)
7265 nl80211_remove_iface(drv, ifidx);
7266 return -1;
7267 }
7268 }
7269
7270 if (!addr &&
7271 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP ||
7272 type == WPA_IF_P2P_GO || type == WPA_IF_MESH ||
7273 type == WPA_IF_STATION)) {
7274 /* Enforce unique address */
7275 u8 new_addr[ETH_ALEN];
7276
7277 if (linux_get_ifhwaddr(drv->global->ioctl_sock, ifname,
7278 new_addr) < 0) {
7279 if (added)
7280 nl80211_remove_iface(drv, ifidx);
7281 return -1;
7282 }
7283 if (nl80211_addr_in_use(drv->global, new_addr)) {
7284 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address "
7285 "for interface %s type %d", ifname, type);
7286 if (nl80211_vif_addr(drv, new_addr) < 0) {
7287 if (added)
7288 nl80211_remove_iface(drv, ifidx);
7289 return -1;
7290 }
7291 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname,
7292 new_addr) < 0) {
7293 if (added)
7294 nl80211_remove_iface(drv, ifidx);
7295 return -1;
7296 }
7297 }
7298 os_memcpy(if_addr, new_addr, ETH_ALEN);
7299 }
7300
7301 if (type == WPA_IF_AP_BSS && setup_ap) {
7302 struct i802_bss *new_bss = os_zalloc(sizeof(*new_bss));
7303 if (new_bss == NULL) {
7304 if (added)
7305 nl80211_remove_iface(drv, ifidx);
7306 return -1;
7307 }
7308
7309 if (bridge &&
7310 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) {
7311 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new "
7312 "interface %s to a bridge %s",
7313 ifname, bridge);
7314 if (added)
7315 nl80211_remove_iface(drv, ifidx);
7316 os_free(new_bss);
7317 return -1;
7318 }
7319
7320 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1))
7321 {
7322 if (added)
7323 nl80211_remove_iface(drv, ifidx);
7324 os_free(new_bss);
7325 return -1;
7326 }
7327 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ);
7328 os_memcpy(new_bss->addr, if_addr, ETH_ALEN);
7329 new_bss->ifindex = ifidx;
7330 new_bss->drv = drv;
7331 new_bss->next = drv->first_bss->next;
7332 new_bss->freq = drv->first_bss->freq;
7333 new_bss->ctx = bss_ctx;
7334 new_bss->added_if = added;
7335 drv->first_bss->next = new_bss;
7336 if (drv_priv)
7337 *drv_priv = new_bss;
7338 nl80211_init_bss(new_bss);
7339
7340 /* Subscribe management frames for this WPA_IF_AP_BSS */
7341 if (nl80211_setup_ap(new_bss))
7342 return -1;
7343 }
7344
7345 if (drv->global)
7346 drv->global->if_add_ifindex = ifidx;
7347
7348 /*
7349 * Some virtual interfaces need to process EAPOL packets and events on
7350 * the parent interface. This is used mainly with hostapd.
7351 */
7352 if (ifidx > 0 &&
7353 (drv->hostapd ||
7354 nlmode == NL80211_IFTYPE_AP_VLAN ||
7355 nlmode == NL80211_IFTYPE_WDS ||
7356 nlmode == NL80211_IFTYPE_MONITOR))
7357 add_ifidx(drv, ifidx, IFIDX_ANY);
7358
7359 return 0;
7360 }
7361
7362
7363 static int wpa_driver_nl80211_if_remove(struct i802_bss *bss,
7364 enum wpa_driver_if_type type,
7365 const char *ifname)
7366 {
7367 struct wpa_driver_nl80211_data *drv = bss->drv;
7368 int ifindex = if_nametoindex(ifname);
7369
7370 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d added_if=%d",
7371 __func__, type, ifname, ifindex, bss->added_if);
7372 if (ifindex > 0 && (bss->added_if || bss->ifindex != ifindex))
7373 nl80211_remove_iface(drv, ifindex);
7374 else if (ifindex > 0 && !bss->added_if) {
7375 struct wpa_driver_nl80211_data *drv2;
7376 dl_list_for_each(drv2, &drv->global->interfaces,
7377 struct wpa_driver_nl80211_data, list) {
7378 del_ifidx(drv2, ifindex, IFIDX_ANY);
7379 del_ifidx(drv2, IFIDX_ANY, ifindex);
7380 }
7381 }
7382
7383 if (type != WPA_IF_AP_BSS)
7384 return 0;
7385
7386 if (bss->added_if_into_bridge) {
7387 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname,
7388 bss->ifname) < 0)
7389 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
7390 "interface %s from bridge %s: %s",
7391 bss->ifname, bss->brname, strerror(errno));
7392 }
7393 if (bss->added_bridge) {
7394 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0)
7395 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
7396 "bridge %s: %s",
7397 bss->brname, strerror(errno));
7398 }
7399
7400 if (bss != drv->first_bss) {
7401 struct i802_bss *tbss;
7402
7403 wpa_printf(MSG_DEBUG, "nl80211: Not the first BSS - remove it");
7404 for (tbss = drv->first_bss; tbss; tbss = tbss->next) {
7405 if (tbss->next == bss) {
7406 tbss->next = bss->next;
7407 /* Unsubscribe management frames */
7408 nl80211_teardown_ap(bss);
7409 nl80211_destroy_bss(bss);
7410 if (!bss->added_if)
7411 i802_set_iface_flags(bss, 0);
7412 os_free(bss);
7413 bss = NULL;
7414 break;
7415 }
7416 }
7417 if (bss)
7418 wpa_printf(MSG_INFO, "nl80211: %s - could not find "
7419 "BSS %p in the list", __func__, bss);
7420 } else {
7421 wpa_printf(MSG_DEBUG, "nl80211: First BSS - reassign context");
7422 nl80211_teardown_ap(bss);
7423 if (!bss->added_if && !drv->first_bss->next)
7424 wpa_driver_nl80211_del_beacon(bss);
7425 nl80211_destroy_bss(bss);
7426 if (!bss->added_if)
7427 i802_set_iface_flags(bss, 0);
7428 if (drv->first_bss->next) {
7429 drv->first_bss = drv->first_bss->next;
7430 drv->ctx = drv->first_bss->ctx;
7431 os_free(bss);
7432 } else {
7433 wpa_printf(MSG_DEBUG, "nl80211: No second BSS to reassign context to");
7434 }
7435 }
7436
7437 return 0;
7438 }
7439
7440
7441 static int cookie_handler(struct nl_msg *msg, void *arg)
7442 {
7443 struct nlattr *tb[NL80211_ATTR_MAX + 1];
7444 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
7445 u64 *cookie = arg;
7446 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
7447 genlmsg_attrlen(gnlh, 0), NULL);
7448 if (tb[NL80211_ATTR_COOKIE])
7449 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
7450 return NL_SKIP;
7451 }
7452
7453
7454 static int nl80211_send_frame_cmd(struct i802_bss *bss,
7455 unsigned int freq, unsigned int wait,
7456 const u8 *buf, size_t buf_len,
7457 u64 *cookie_out, int no_cck, int no_ack,
7458 int offchanok, const u16 *csa_offs,
7459 size_t csa_offs_len)
7460 {
7461 struct wpa_driver_nl80211_data *drv = bss->drv;
7462 struct nl_msg *msg;
7463 u64 cookie;
7464 int ret = -1;
7465
7466 wpa_printf(MSG_MSGDUMP, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d "
7467 "no_ack=%d offchanok=%d",
7468 freq, wait, no_cck, no_ack, offchanok);
7469 wpa_hexdump(MSG_MSGDUMP, "CMD_FRAME", buf, buf_len);
7470
7471 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_FRAME)) ||
7472 (freq && nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
7473 (wait && nla_put_u32(msg, NL80211_ATTR_DURATION, wait)) ||
7474 (offchanok && ((drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) ||
7475 drv->test_use_roc_tx) &&
7476 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK)) ||
7477 (no_cck && nla_put_flag(msg, NL80211_ATTR_TX_NO_CCK_RATE)) ||
7478 (no_ack && nla_put_flag(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK)) ||
7479 (csa_offs && nla_put(msg, NL80211_ATTR_CSA_C_OFFSETS_TX,
7480 csa_offs_len * sizeof(u16), csa_offs)) ||
7481 nla_put(msg, NL80211_ATTR_FRAME, buf_len, buf))
7482 goto fail;
7483
7484 cookie = 0;
7485 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
7486 msg = NULL;
7487 if (ret) {
7488 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d "
7489 "(%s) (freq=%u wait=%u)", ret, strerror(-ret),
7490 freq, wait);
7491 } else {
7492 wpa_printf(MSG_MSGDUMP, "nl80211: Frame TX command accepted%s; "
7493 "cookie 0x%llx", no_ack ? " (no ACK)" : "",
7494 (long long unsigned int) cookie);
7495
7496 if (cookie_out)
7497 *cookie_out = no_ack ? (u64) -1 : cookie;
7498
7499 if (drv->num_send_action_cookies == MAX_SEND_ACTION_COOKIES) {
7500 wpa_printf(MSG_DEBUG,
7501 "nl80211: Drop oldest pending send action cookie 0x%llx",
7502 (long long unsigned int)
7503 drv->send_action_cookies[0]);
7504 os_memmove(&drv->send_action_cookies[0],
7505 &drv->send_action_cookies[1],
7506 (MAX_SEND_ACTION_COOKIES - 1) *
7507 sizeof(u64));
7508 drv->num_send_action_cookies--;
7509 }
7510 drv->send_action_cookies[drv->num_send_action_cookies] = cookie;
7511 drv->num_send_action_cookies++;
7512 }
7513
7514 fail:
7515 nlmsg_free(msg);
7516 return ret;
7517 }
7518
7519
7520 static int wpa_driver_nl80211_send_action(struct i802_bss *bss,
7521 unsigned int freq,
7522 unsigned int wait_time,
7523 const u8 *dst, const u8 *src,
7524 const u8 *bssid,
7525 const u8 *data, size_t data_len,
7526 int no_cck)
7527 {
7528 struct wpa_driver_nl80211_data *drv = bss->drv;
7529 int ret = -1;
7530 u8 *buf;
7531 struct ieee80211_hdr *hdr;
7532
7533 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, "
7534 "freq=%u MHz wait=%d ms no_cck=%d)",
7535 drv->ifindex, freq, wait_time, no_cck);
7536
7537 buf = os_zalloc(24 + data_len);
7538 if (buf == NULL)
7539 return ret;
7540 os_memcpy(buf + 24, data, data_len);
7541 hdr = (struct ieee80211_hdr *) buf;
7542 hdr->frame_control =
7543 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION);
7544 os_memcpy(hdr->addr1, dst, ETH_ALEN);
7545 os_memcpy(hdr->addr2, src, ETH_ALEN);
7546 os_memcpy(hdr->addr3, bssid, ETH_ALEN);
7547
7548 if (os_memcmp(bss->addr, src, ETH_ALEN) != 0) {
7549 wpa_printf(MSG_DEBUG, "nl80211: Use random TA " MACSTR,
7550 MAC2STR(src));
7551 os_memcpy(bss->rand_addr, src, ETH_ALEN);
7552 } else {
7553 os_memset(bss->rand_addr, 0, ETH_ALEN);
7554 }
7555
7556 if (is_ap_interface(drv->nlmode) &&
7557 (!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) ||
7558 (int) freq == bss->freq || drv->device_ap_sme ||
7559 !drv->use_monitor))
7560 ret = wpa_driver_nl80211_send_mlme(bss, buf, 24 + data_len,
7561 0, freq, no_cck, 1,
7562 wait_time, NULL, 0);
7563 else
7564 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf,
7565 24 + data_len,
7566 &drv->send_action_cookie,
7567 no_cck, 0, 1, NULL, 0);
7568
7569 os_free(buf);
7570 return ret;
7571 }
7572
7573
7574 static void nl80211_frame_wait_cancel(struct i802_bss *bss, u64 cookie)
7575 {
7576 struct wpa_driver_nl80211_data *drv = bss->drv;
7577 struct nl_msg *msg;
7578 int ret;
7579
7580 wpa_printf(MSG_DEBUG, "nl80211: Cancel TX frame wait: cookie=0x%llx",
7581 (long long unsigned int) cookie);
7582 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_FRAME_WAIT_CANCEL)) ||
7583 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) {
7584 nlmsg_free(msg);
7585 return;
7586 }
7587
7588 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7589 if (ret)
7590 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d "
7591 "(%s)", ret, strerror(-ret));
7592 }
7593
7594
7595 static void wpa_driver_nl80211_send_action_cancel_wait(void *priv)
7596 {
7597 struct i802_bss *bss = priv;
7598 struct wpa_driver_nl80211_data *drv = bss->drv;
7599 unsigned int i;
7600 u64 cookie;
7601
7602 /* Cancel the last pending TX cookie */
7603 nl80211_frame_wait_cancel(bss, drv->send_action_cookie);
7604
7605 /*
7606 * Cancel the other pending TX cookies, if any. This is needed since
7607 * the driver may keep a list of all pending offchannel TX operations
7608 * and free up the radio only once they have expired or cancelled.
7609 */
7610 for (i = drv->num_send_action_cookies; i > 0; i--) {
7611 cookie = drv->send_action_cookies[i - 1];
7612 if (cookie != drv->send_action_cookie)
7613 nl80211_frame_wait_cancel(bss, cookie);
7614 }
7615 drv->num_send_action_cookies = 0;
7616 }
7617
7618
7619 static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq,
7620 unsigned int duration)
7621 {
7622 struct i802_bss *bss = priv;
7623 struct wpa_driver_nl80211_data *drv = bss->drv;
7624 struct nl_msg *msg;
7625 int ret;
7626 u64 cookie;
7627
7628 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_REMAIN_ON_CHANNEL)) ||
7629 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
7630 nla_put_u32(msg, NL80211_ATTR_DURATION, duration)) {
7631 nlmsg_free(msg);
7632 return -1;
7633 }
7634
7635 cookie = 0;
7636 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
7637 if (ret == 0) {
7638 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie "
7639 "0x%llx for freq=%u MHz duration=%u",
7640 (long long unsigned int) cookie, freq, duration);
7641 drv->remain_on_chan_cookie = cookie;
7642 drv->pending_remain_on_chan = 1;
7643 return 0;
7644 }
7645 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel "
7646 "(freq=%d duration=%u): %d (%s)",
7647 freq, duration, ret, strerror(-ret));
7648 return -1;
7649 }
7650
7651
7652 static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv)
7653 {
7654 struct i802_bss *bss = priv;
7655 struct wpa_driver_nl80211_data *drv = bss->drv;
7656 struct nl_msg *msg;
7657 int ret;
7658
7659 if (!drv->pending_remain_on_chan) {
7660 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel "
7661 "to cancel");
7662 return -1;
7663 }
7664
7665 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie "
7666 "0x%llx",
7667 (long long unsigned int) drv->remain_on_chan_cookie);
7668
7669 msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL);
7670 if (!msg ||
7671 nla_put_u64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie)) {
7672 nlmsg_free(msg);
7673 return -1;
7674 }
7675
7676 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7677 if (ret == 0)
7678 return 0;
7679 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: "
7680 "%d (%s)", ret, strerror(-ret));
7681 return -1;
7682 }
7683
7684
7685 static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, int report)
7686 {
7687 struct wpa_driver_nl80211_data *drv = bss->drv;
7688
7689 if (!report) {
7690 if (bss->nl_preq && drv->device_ap_sme &&
7691 is_ap_interface(drv->nlmode) && !bss->in_deinit &&
7692 !bss->static_ap) {
7693 /*
7694 * Do not disable Probe Request reporting that was
7695 * enabled in nl80211_setup_ap().
7696 */
7697 wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of "
7698 "Probe Request reporting nl_preq=%p while "
7699 "in AP mode", bss->nl_preq);
7700 } else if (bss->nl_preq) {
7701 wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request "
7702 "reporting nl_preq=%p", bss->nl_preq);
7703 nl80211_destroy_eloop_handle(&bss->nl_preq, 0);
7704 }
7705 return 0;
7706 }
7707
7708 if (bss->nl_preq) {
7709 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting "
7710 "already on! nl_preq=%p", bss->nl_preq);
7711 return 0;
7712 }
7713
7714 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq");
7715 if (bss->nl_preq == NULL)
7716 return -1;
7717 wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request "
7718 "reporting nl_preq=%p", bss->nl_preq);
7719
7720 if (nl80211_register_frame(bss, bss->nl_preq,
7721 (WLAN_FC_TYPE_MGMT << 2) |
7722 (WLAN_FC_STYPE_PROBE_REQ << 4),
7723 NULL, 0) < 0)
7724 goto out_err;
7725
7726 nl80211_register_eloop_read(&bss->nl_preq,
7727 wpa_driver_nl80211_event_receive,
7728 bss->nl_cb, 0);
7729
7730 return 0;
7731
7732 out_err:
7733 nl_destroy_handles(&bss->nl_preq);
7734 return -1;
7735 }
7736
7737
7738 static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
7739 int ifindex, int disabled)
7740 {
7741 struct nl_msg *msg;
7742 struct nlattr *bands, *band;
7743 int ret;
7744
7745 wpa_printf(MSG_DEBUG,
7746 "nl80211: NL80211_CMD_SET_TX_BITRATE_MASK (ifindex=%d %s)",
7747 ifindex, disabled ? "NL80211_TXRATE_LEGACY=OFDM-only" :
7748 "no NL80211_TXRATE_LEGACY constraint");
7749
7750 msg = nl80211_ifindex_msg(drv, ifindex, 0,
7751 NL80211_CMD_SET_TX_BITRATE_MASK);
7752 if (!msg)
7753 return -1;
7754
7755 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES);
7756 if (!bands)
7757 goto fail;
7758
7759 /*
7760 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything
7761 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS
7762 * rates. All 5 GHz rates are left enabled.
7763 */
7764 band = nla_nest_start(msg, NL80211_BAND_2GHZ);
7765 if (!band ||
7766 (disabled && nla_put(msg, NL80211_TXRATE_LEGACY, 8,
7767 "\x0c\x12\x18\x24\x30\x48\x60\x6c")))
7768 goto fail;
7769 nla_nest_end(msg, band);
7770
7771 nla_nest_end(msg, bands);
7772
7773 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7774 if (ret) {
7775 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d "
7776 "(%s)", ret, strerror(-ret));
7777 } else
7778 drv->disabled_11b_rates = disabled;
7779
7780 return ret;
7781
7782 fail:
7783 nlmsg_free(msg);
7784 return -1;
7785 }
7786
7787
7788 static int wpa_driver_nl80211_deinit_ap(void *priv)
7789 {
7790 struct i802_bss *bss = priv;
7791 struct wpa_driver_nl80211_data *drv = bss->drv;
7792 if (!is_ap_interface(drv->nlmode))
7793 return -1;
7794 wpa_driver_nl80211_del_beacon(bss);
7795 bss->beacon_set = 0;
7796
7797 /*
7798 * If the P2P GO interface was dynamically added, then it is
7799 * possible that the interface change to station is not possible.
7800 */
7801 if (drv->nlmode == NL80211_IFTYPE_P2P_GO && bss->if_dynamic)
7802 return 0;
7803
7804 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION);
7805 }
7806
7807
7808 static int wpa_driver_nl80211_stop_ap(void *priv)
7809 {
7810 struct i802_bss *bss = priv;
7811 struct wpa_driver_nl80211_data *drv = bss->drv;
7812 if (!is_ap_interface(drv->nlmode))
7813 return -1;
7814 wpa_driver_nl80211_del_beacon(bss);
7815 bss->beacon_set = 0;
7816 return 0;
7817 }
7818
7819
7820 static int wpa_driver_nl80211_deinit_p2p_cli(void *priv)
7821 {
7822 struct i802_bss *bss = priv;
7823 struct wpa_driver_nl80211_data *drv = bss->drv;
7824 if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT)
7825 return -1;
7826
7827 /*
7828 * If the P2P Client interface was dynamically added, then it is
7829 * possible that the interface change to station is not possible.
7830 */
7831 if (bss->if_dynamic)
7832 return 0;
7833
7834 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION);
7835 }
7836
7837
7838 static void wpa_driver_nl80211_resume(void *priv)
7839 {
7840 struct i802_bss *bss = priv;
7841 enum nl80211_iftype nlmode = nl80211_get_ifmode(bss);
7842
7843 if (i802_set_iface_flags(bss, 1))
7844 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on resume event");
7845
7846 if (is_p2p_net_interface(nlmode))
7847 nl80211_disable_11b_rates(bss->drv, bss->drv->ifindex, 1);
7848 }
7849
7850
7851 static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis)
7852 {
7853 struct i802_bss *bss = priv;
7854 struct wpa_driver_nl80211_data *drv = bss->drv;
7855 struct nl_msg *msg;
7856 struct nlattr *cqm;
7857
7858 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d "
7859 "hysteresis=%d", threshold, hysteresis);
7860
7861 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_CQM)) ||
7862 !(cqm = nla_nest_start(msg, NL80211_ATTR_CQM)) ||
7863 nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THOLD, threshold) ||
7864 nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_HYST, hysteresis)) {
7865 nlmsg_free(msg);
7866 return -1;
7867 }
7868 nla_nest_end(msg, cqm);
7869
7870 return send_and_recv_msgs(drv, msg, NULL, NULL);
7871 }
7872
7873
7874 static int get_channel_width(struct nl_msg *msg, void *arg)
7875 {
7876 struct nlattr *tb[NL80211_ATTR_MAX + 1];
7877 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
7878 struct wpa_signal_info *sig_change = arg;
7879
7880 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
7881 genlmsg_attrlen(gnlh, 0), NULL);
7882
7883 sig_change->center_frq1 = -1;
7884 sig_change->center_frq2 = -1;
7885 sig_change->chanwidth = CHAN_WIDTH_UNKNOWN;
7886
7887 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) {
7888 sig_change->chanwidth = convert2width(
7889 nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH]));
7890 if (tb[NL80211_ATTR_CENTER_FREQ1])
7891 sig_change->center_frq1 =
7892 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]);
7893 if (tb[NL80211_ATTR_CENTER_FREQ2])
7894 sig_change->center_frq2 =
7895 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]);
7896 }
7897
7898 return NL_SKIP;
7899 }
7900
7901
7902 static int nl80211_get_channel_width(struct wpa_driver_nl80211_data *drv,
7903 struct wpa_signal_info *sig)
7904 {
7905 struct nl_msg *msg;
7906
7907 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_GET_INTERFACE);
7908 return send_and_recv_msgs(drv, msg, get_channel_width, sig);
7909 }
7910
7911
7912 static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si)
7913 {
7914 struct i802_bss *bss = priv;
7915 struct wpa_driver_nl80211_data *drv = bss->drv;
7916 int res;
7917
7918 os_memset(si, 0, sizeof(*si));
7919 res = nl80211_get_link_signal(drv, si);
7920 if (res) {
7921 if (drv->nlmode != NL80211_IFTYPE_ADHOC &&
7922 drv->nlmode != NL80211_IFTYPE_MESH_POINT)
7923 return res;
7924 si->current_signal = 0;
7925 }
7926
7927 res = nl80211_get_channel_width(drv, si);
7928 if (res != 0)
7929 return res;
7930
7931 return nl80211_get_link_noise(drv, si);
7932 }
7933
7934
7935 static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len,
7936 int encrypt)
7937 {
7938 struct i802_bss *bss = priv;
7939 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0,
7940 0, 0, 0, 0, NULL, 0);
7941 }
7942
7943
7944 static int nl80211_set_param(void *priv, const char *param)
7945 {
7946 struct i802_bss *bss = priv;
7947 struct wpa_driver_nl80211_data *drv = bss->drv;
7948
7949 if (param == NULL)
7950 return 0;
7951 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param);
7952
7953 #ifdef CONFIG_P2P
7954 if (os_strstr(param, "use_p2p_group_interface=1")) {
7955 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
7956 "interface");
7957 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
7958 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
7959 }
7960 #endif /* CONFIG_P2P */
7961
7962 if (os_strstr(param, "use_monitor=1"))
7963 drv->use_monitor = 1;
7964
7965 if (os_strstr(param, "force_connect_cmd=1")) {
7966 drv->capa.flags &= ~WPA_DRIVER_FLAGS_SME;
7967 drv->force_connect_cmd = 1;
7968 }
7969
7970 if (os_strstr(param, "force_bss_selection=1"))
7971 drv->capa.flags |= WPA_DRIVER_FLAGS_BSS_SELECTION;
7972
7973 if (os_strstr(param, "no_offchannel_tx=1")) {
7974 drv->capa.flags &= ~WPA_DRIVER_FLAGS_OFFCHANNEL_TX;
7975 drv->test_use_roc_tx = 1;
7976 }
7977
7978 return 0;
7979 }
7980
7981
7982 static void * nl80211_global_init(void *ctx)
7983 {
7984 struct nl80211_global *global;
7985 struct netlink_config *cfg;
7986
7987 global = os_zalloc(sizeof(*global));
7988 if (global == NULL)
7989 return NULL;
7990 global->ctx = ctx;
7991 global->ioctl_sock = -1;
7992 dl_list_init(&global->interfaces);
7993 global->if_add_ifindex = -1;
7994
7995 cfg = os_zalloc(sizeof(*cfg));
7996 if (cfg == NULL)
7997 goto err;
7998
7999 cfg->ctx = global;
8000 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink;
8001 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink;
8002 global->netlink = netlink_init(cfg);
8003 if (global->netlink == NULL) {
8004 os_free(cfg);
8005 goto err;
8006 }
8007
8008 if (wpa_driver_nl80211_init_nl_global(global) < 0)
8009 goto err;
8010
8011 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
8012 if (global->ioctl_sock < 0) {
8013 wpa_printf(MSG_ERROR, "nl80211: socket(PF_INET,SOCK_DGRAM) failed: %s",
8014 strerror(errno));
8015 goto err;
8016 }
8017
8018 return global;
8019
8020 err:
8021 nl80211_global_deinit(global);
8022 return NULL;
8023 }
8024
8025
8026 static void nl80211_global_deinit(void *priv)
8027 {
8028 struct nl80211_global *global = priv;
8029 if (global == NULL)
8030 return;
8031 if (!dl_list_empty(&global->interfaces)) {
8032 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at "
8033 "nl80211_global_deinit",
8034 dl_list_len(&global->interfaces));
8035 }
8036
8037 if (global->netlink)
8038 netlink_deinit(global->netlink);
8039
8040 nl_destroy_handles(&global->nl);
8041
8042 if (global->nl_event)
8043 nl80211_destroy_eloop_handle(&global->nl_event, 0);
8044
8045 nl_cb_put(global->nl_cb);
8046
8047 if (global->ioctl_sock >= 0)
8048 close(global->ioctl_sock);
8049
8050 os_free(global);
8051 }
8052
8053
8054 static const char * nl80211_get_radio_name(void *priv)
8055 {
8056 struct i802_bss *bss = priv;
8057 struct wpa_driver_nl80211_data *drv = bss->drv;
8058 return drv->phyname;
8059 }
8060
8061
8062 static int nl80211_pmkid(struct i802_bss *bss, int cmd,
8063 struct wpa_pmkid_params *params)
8064 {
8065 struct nl_msg *msg;
8066 const size_t PMK_MAX_LEN = 48; /* current cfg80211 limit */
8067
8068 if (!(msg = nl80211_bss_msg(bss, 0, cmd)) ||
8069 (params->pmkid &&
8070 nla_put(msg, NL80211_ATTR_PMKID, 16, params->pmkid)) ||
8071 (params->bssid &&
8072 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid)) ||
8073 (params->ssid_len &&
8074 nla_put(msg, NL80211_ATTR_SSID, params->ssid_len, params->ssid)) ||
8075 (params->fils_cache_id &&
8076 nla_put(msg, NL80211_ATTR_FILS_CACHE_ID, 2,
8077 params->fils_cache_id)) ||
8078 (cmd != NL80211_CMD_DEL_PMKSA &&
8079 params->pmk_len && params->pmk_len <= PMK_MAX_LEN &&
8080 nla_put(msg, NL80211_ATTR_PMK, params->pmk_len, params->pmk))) {
8081 nl80211_nlmsg_clear(msg);
8082 nlmsg_free(msg);
8083 return -ENOBUFS;
8084 }
8085
8086 return send_and_recv_msgs(bss->drv, msg, NULL, (void *) -1);
8087 }
8088
8089
8090 static int nl80211_add_pmkid(void *priv, struct wpa_pmkid_params *params)
8091 {
8092 struct i802_bss *bss = priv;
8093 int ret;
8094
8095 if (params->bssid)
8096 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR,
8097 MAC2STR(params->bssid));
8098 else if (params->fils_cache_id && params->ssid_len) {
8099 wpa_printf(MSG_DEBUG,
8100 "nl80211: Add PMKSA for cache id %02x%02x SSID %s",
8101 params->fils_cache_id[0], params->fils_cache_id[1],
8102 wpa_ssid_txt(params->ssid, params->ssid_len));
8103 }
8104
8105 ret = nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, params);
8106 if (ret < 0) {
8107 wpa_printf(MSG_DEBUG,
8108 "nl80211: NL80211_CMD_SET_PMKSA failed: %d (%s)",
8109 ret, strerror(-ret));
8110 }
8111
8112 return ret;
8113 }
8114
8115
8116 static int nl80211_remove_pmkid(void *priv, struct wpa_pmkid_params *params)
8117 {
8118 struct i802_bss *bss = priv;
8119 int ret;
8120
8121 if (params->bssid)
8122 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR,
8123 MAC2STR(params->bssid));
8124 else if (params->fils_cache_id && params->ssid_len) {
8125 wpa_printf(MSG_DEBUG,
8126 "nl80211: Delete PMKSA for cache id %02x%02x SSID %s",
8127 params->fils_cache_id[0], params->fils_cache_id[1],
8128 wpa_ssid_txt(params->ssid, params->ssid_len));
8129 }
8130
8131 ret = nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, params);
8132 if (ret < 0) {
8133 wpa_printf(MSG_DEBUG,
8134 "nl80211: NL80211_CMD_DEL_PMKSA failed: %d (%s)",
8135 ret, strerror(-ret));
8136 }
8137
8138 return ret;
8139 }
8140
8141
8142 static int nl80211_flush_pmkid(void *priv)
8143 {
8144 struct i802_bss *bss = priv;
8145 struct nl_msg *msg;
8146
8147 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs");
8148 msg = nl80211_bss_msg(bss, 0, NL80211_CMD_FLUSH_PMKSA);
8149 if (!msg)
8150 return -ENOBUFS;
8151 return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
8152 }
8153
8154
8155 static void clean_survey_results(struct survey_results *survey_results)
8156 {
8157 struct freq_survey *survey, *tmp;
8158
8159 if (dl_list_empty(&survey_results->survey_list))
8160 return;
8161
8162 dl_list_for_each_safe(survey, tmp, &survey_results->survey_list,
8163 struct freq_survey, list) {
8164 dl_list_del(&survey->list);
8165 os_free(survey);
8166 }
8167 }
8168
8169
8170 static void add_survey(struct nlattr **sinfo, u32 ifidx,
8171 struct dl_list *survey_list)
8172 {
8173 struct freq_survey *survey;
8174
8175 survey = os_zalloc(sizeof(struct freq_survey));
8176 if (!survey)
8177 return;
8178
8179 survey->ifidx = ifidx;
8180 survey->freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]);
8181 survey->filled = 0;
8182
8183 if (sinfo[NL80211_SURVEY_INFO_NOISE]) {
8184 survey->nf = (int8_t)
8185 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
8186 survey->filled |= SURVEY_HAS_NF;
8187 }
8188
8189 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]) {
8190 survey->channel_time =
8191 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]);
8192 survey->filled |= SURVEY_HAS_CHAN_TIME;
8193 }
8194
8195 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]) {
8196 survey->channel_time_busy =
8197 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]);
8198 survey->filled |= SURVEY_HAS_CHAN_TIME_BUSY;
8199 }
8200
8201 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]) {
8202 survey->channel_time_rx =
8203 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]);
8204 survey->filled |= SURVEY_HAS_CHAN_TIME_RX;
8205 }
8206
8207 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]) {
8208 survey->channel_time_tx =
8209 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]);
8210 survey->filled |= SURVEY_HAS_CHAN_TIME_TX;
8211 }
8212
8213 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)",
8214 survey->freq,
8215 survey->nf,
8216 (unsigned long int) survey->channel_time,
8217 (unsigned long int) survey->channel_time_busy,
8218 (unsigned long int) survey->channel_time_tx,
8219 (unsigned long int) survey->channel_time_rx,
8220 survey->filled);
8221
8222 dl_list_add_tail(survey_list, &survey->list);
8223 }
8224
8225
8226 static int check_survey_ok(struct nlattr **sinfo, u32 surveyed_freq,
8227 unsigned int freq_filter)
8228 {
8229 if (!freq_filter)
8230 return 1;
8231
8232 return freq_filter == surveyed_freq;
8233 }
8234
8235
8236 static int survey_handler(struct nl_msg *msg, void *arg)
8237 {
8238 struct nlattr *tb[NL80211_ATTR_MAX + 1];
8239 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
8240 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
8241 struct survey_results *survey_results;
8242 u32 surveyed_freq = 0;
8243 u32 ifidx;
8244
8245 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
8246 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
8247 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
8248 };
8249
8250 survey_results = (struct survey_results *) arg;
8251
8252 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
8253 genlmsg_attrlen(gnlh, 0), NULL);
8254
8255 if (!tb[NL80211_ATTR_IFINDEX])
8256 return NL_SKIP;
8257
8258 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
8259
8260 if (!tb[NL80211_ATTR_SURVEY_INFO])
8261 return NL_SKIP;
8262
8263 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
8264 tb[NL80211_ATTR_SURVEY_INFO],
8265 survey_policy))
8266 return NL_SKIP;
8267
8268 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) {
8269 wpa_printf(MSG_ERROR, "nl80211: Invalid survey data");
8270 return NL_SKIP;
8271 }
8272
8273 surveyed_freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]);
8274
8275 if (!check_survey_ok(sinfo, surveyed_freq,
8276 survey_results->freq_filter))
8277 return NL_SKIP;
8278
8279 if (survey_results->freq_filter &&
8280 survey_results->freq_filter != surveyed_freq) {
8281 wpa_printf(MSG_EXCESSIVE, "nl80211: Ignoring survey data for freq %d MHz",
8282 surveyed_freq);
8283 return NL_SKIP;
8284 }
8285
8286 add_survey(sinfo, ifidx, &survey_results->survey_list);
8287
8288 return NL_SKIP;
8289 }
8290
8291
8292 static int wpa_driver_nl80211_get_survey(void *priv, unsigned int freq)
8293 {
8294 struct i802_bss *bss = priv;
8295 struct wpa_driver_nl80211_data *drv = bss->drv;
8296 struct nl_msg *msg;
8297 int err;
8298 union wpa_event_data data;
8299 struct survey_results *survey_results;
8300
8301 os_memset(&data, 0, sizeof(data));
8302 survey_results = &data.survey_results;
8303
8304 dl_list_init(&survey_results->survey_list);
8305
8306 msg = nl80211_drv_msg(drv, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
8307 if (!msg)
8308 return -ENOBUFS;
8309
8310 if (freq)
8311 data.survey_results.freq_filter = freq;
8312
8313 do {
8314 wpa_printf(MSG_DEBUG, "nl80211: Fetch survey data");
8315 err = send_and_recv_msgs(drv, msg, survey_handler,
8316 survey_results);
8317 } while (err > 0);
8318
8319 if (err)
8320 wpa_printf(MSG_ERROR, "nl80211: Failed to process survey data");
8321 else
8322 wpa_supplicant_event(drv->ctx, EVENT_SURVEY, &data);
8323
8324 clean_survey_results(survey_results);
8325 return err;
8326 }
8327
8328
8329 static void nl80211_set_rekey_info(void *priv, const u8 *kek, size_t kek_len,
8330 const u8 *kck, size_t kck_len,
8331 const u8 *replay_ctr)
8332 {
8333 struct i802_bss *bss = priv;
8334 struct wpa_driver_nl80211_data *drv = bss->drv;
8335 struct nlattr *replay_nested;
8336 struct nl_msg *msg;
8337 int ret;
8338
8339 if (!drv->set_rekey_offload)
8340 return;
8341
8342 wpa_printf(MSG_DEBUG, "nl80211: Set rekey offload");
8343 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_REKEY_OFFLOAD)) ||
8344 !(replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA)) ||
8345 nla_put(msg, NL80211_REKEY_DATA_KEK, kek_len, kek) ||
8346 (kck_len && nla_put(msg, NL80211_REKEY_DATA_KCK, kck_len, kck)) ||
8347 nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN,
8348 replay_ctr)) {
8349 nl80211_nlmsg_clear(msg);
8350 nlmsg_free(msg);
8351 return;
8352 }
8353
8354 nla_nest_end(msg, replay_nested);
8355
8356 ret = send_and_recv_msgs(drv, msg, NULL, (void *) -1);
8357 if (ret == -EOPNOTSUPP) {
8358 wpa_printf(MSG_DEBUG,
8359 "nl80211: Driver does not support rekey offload");
8360 drv->set_rekey_offload = 0;
8361 }
8362 }
8363
8364
8365 static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr,
8366 const u8 *addr, int qos)
8367 {
8368 /* send data frame to poll STA and check whether
8369 * this frame is ACKed */
8370 struct {
8371 struct ieee80211_hdr hdr;
8372 u16 qos_ctl;
8373 } STRUCT_PACKED nulldata;
8374 size_t size;
8375
8376 /* Send data frame to poll STA and check whether this frame is ACKed */
8377
8378 os_memset(&nulldata, 0, sizeof(nulldata));
8379
8380 if (qos) {
8381 nulldata.hdr.frame_control =
8382 IEEE80211_FC(WLAN_FC_TYPE_DATA,
8383 WLAN_FC_STYPE_QOS_NULL);
8384 size = sizeof(nulldata);
8385 } else {
8386 nulldata.hdr.frame_control =
8387 IEEE80211_FC(WLAN_FC_TYPE_DATA,
8388 WLAN_FC_STYPE_NULLFUNC);
8389 size = sizeof(struct ieee80211_hdr);
8390 }
8391
8392 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS);
8393 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN);
8394 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
8395 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
8396
8397 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0, 0, 0,
8398 0, 0, NULL, 0) < 0)
8399 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to "
8400 "send poll frame");
8401 }
8402
8403 static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr,
8404 int qos)
8405 {
8406 struct i802_bss *bss = priv;
8407 struct wpa_driver_nl80211_data *drv = bss->drv;
8408 struct nl_msg *msg;
8409 u64 cookie;
8410 int ret;
8411
8412 if (!drv->poll_command_supported) {
8413 nl80211_send_null_frame(bss, own_addr, addr, qos);
8414 return;
8415 }
8416
8417 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_PROBE_CLIENT)) ||
8418 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) {
8419 nlmsg_free(msg);
8420 return;
8421 }
8422
8423 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
8424 if (ret < 0) {
8425 wpa_printf(MSG_DEBUG, "nl80211: Client probe request for "
8426 MACSTR " failed: ret=%d (%s)",
8427 MAC2STR(addr), ret, strerror(-ret));
8428 } else {
8429 wpa_printf(MSG_DEBUG,
8430 "nl80211: Client probe request addr=" MACSTR
8431 " cookie=%llu", MAC2STR(addr),
8432 (long long unsigned int) cookie);
8433 }
8434 }
8435
8436
8437 static int nl80211_set_power_save(struct i802_bss *bss, int enabled)
8438 {
8439 struct nl_msg *msg;
8440 int ret;
8441
8442 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_SET_POWER_SAVE)) ||
8443 nla_put_u32(msg, NL80211_ATTR_PS_STATE,
8444 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED)) {
8445 nlmsg_free(msg);
8446 return -ENOBUFS;
8447 }
8448
8449 ret = send_and_recv_msgs(bss->drv, msg, NULL, NULL);
8450 if (ret < 0) {
8451 wpa_printf(MSG_DEBUG,
8452 "nl80211: Setting PS state %s failed: %d (%s)",
8453 enabled ? "enabled" : "disabled",
8454 ret, strerror(-ret));
8455 }
8456 return ret;
8457 }
8458
8459
8460 static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps,
8461 int ctwindow)
8462 {
8463 struct i802_bss *bss = priv;
8464
8465 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d "
8466 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow);
8467
8468 if (opp_ps != -1 || ctwindow != -1) {
8469 #ifdef ANDROID_P2P
8470 wpa_driver_set_p2p_ps(priv, legacy_ps, opp_ps, ctwindow);
8471 #else /* ANDROID_P2P */
8472 return -1; /* Not yet supported */
8473 #endif /* ANDROID_P2P */
8474 }
8475
8476 if (legacy_ps == -1)
8477 return 0;
8478 if (legacy_ps != 0 && legacy_ps != 1)
8479 return -1; /* Not yet supported */
8480
8481 return nl80211_set_power_save(bss, legacy_ps);
8482 }
8483
8484
8485 static int nl80211_start_radar_detection(void *priv,
8486 struct hostapd_freq_params *freq)
8487 {
8488 struct i802_bss *bss = priv;
8489 struct wpa_driver_nl80211_data *drv = bss->drv;
8490 struct nl_msg *msg;
8491 int ret;
8492
8493 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)",
8494 freq->freq, freq->ht_enabled, freq->vht_enabled, freq->he_enabled,
8495 freq->bandwidth, freq->center_freq1, freq->center_freq2);
8496
8497 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_RADAR)) {
8498 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support radar "
8499 "detection");
8500 return -1;
8501 }
8502
8503 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_RADAR_DETECT)) ||
8504 nl80211_put_freq_params(msg, freq) < 0) {
8505 nlmsg_free(msg);
8506 return -1;
8507 }
8508
8509 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8510 if (ret == 0)
8511 return 0;
8512 wpa_printf(MSG_DEBUG, "nl80211: Failed to start radar detection: "
8513 "%d (%s)", ret, strerror(-ret));
8514 return -1;
8515 }
8516
8517 #ifdef CONFIG_TDLS
8518
8519 static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code,
8520 u8 dialog_token, u16 status_code,
8521 u32 peer_capab, int initiator, const u8 *buf,
8522 size_t len)
8523 {
8524 struct i802_bss *bss = priv;
8525 struct wpa_driver_nl80211_data *drv = bss->drv;
8526 struct nl_msg *msg;
8527
8528 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
8529 return -EOPNOTSUPP;
8530
8531 if (!dst)
8532 return -EINVAL;
8533
8534 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_TDLS_MGMT)) ||
8535 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
8536 nla_put_u8(msg, NL80211_ATTR_TDLS_ACTION, action_code) ||
8537 nla_put_u8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token) ||
8538 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status_code))
8539 goto fail;
8540 if (peer_capab) {
8541 /*
8542 * The internal enum tdls_peer_capability definition is
8543 * currently identical with the nl80211 enum
8544 * nl80211_tdls_peer_capability, so no conversion is needed
8545 * here.
8546 */
8547 if (nla_put_u32(msg, NL80211_ATTR_TDLS_PEER_CAPABILITY,
8548 peer_capab))
8549 goto fail;
8550 }
8551 if ((initiator &&
8552 nla_put_flag(msg, NL80211_ATTR_TDLS_INITIATOR)) ||
8553 nla_put(msg, NL80211_ATTR_IE, len, buf))
8554 goto fail;
8555
8556 return send_and_recv_msgs(drv, msg, NULL, NULL);
8557
8558 fail:
8559 nlmsg_free(msg);
8560 return -ENOBUFS;
8561 }
8562
8563
8564 static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer)
8565 {
8566 struct i802_bss *bss = priv;
8567 struct wpa_driver_nl80211_data *drv = bss->drv;
8568 struct nl_msg *msg;
8569 enum nl80211_tdls_operation nl80211_oper;
8570 int res;
8571
8572 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
8573 return -EOPNOTSUPP;
8574
8575 switch (oper) {
8576 case TDLS_DISCOVERY_REQ:
8577 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ;
8578 break;
8579 case TDLS_SETUP:
8580 nl80211_oper = NL80211_TDLS_SETUP;
8581 break;
8582 case TDLS_TEARDOWN:
8583 nl80211_oper = NL80211_TDLS_TEARDOWN;
8584 break;
8585 case TDLS_ENABLE_LINK:
8586 nl80211_oper = NL80211_TDLS_ENABLE_LINK;
8587 break;
8588 case TDLS_DISABLE_LINK:
8589 nl80211_oper = NL80211_TDLS_DISABLE_LINK;
8590 break;
8591 case TDLS_ENABLE:
8592 return 0;
8593 case TDLS_DISABLE:
8594 return 0;
8595 default:
8596 return -EINVAL;
8597 }
8598
8599 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_TDLS_OPER)) ||
8600 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper) ||
8601 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer)) {
8602 nlmsg_free(msg);
8603 return -ENOBUFS;
8604 }
8605
8606 res = send_and_recv_msgs(drv, msg, NULL, NULL);
8607 wpa_printf(MSG_DEBUG, "nl80211: TDLS_OPER: oper=%d mac=" MACSTR
8608 " --> res=%d (%s)", nl80211_oper, MAC2STR(peer), res,
8609 strerror(-res));
8610 return res;
8611 }
8612
8613
8614 static int
8615 nl80211_tdls_enable_channel_switch(void *priv, const u8 *addr, u8 oper_class,
8616 const struct hostapd_freq_params *params)
8617 {
8618 struct i802_bss *bss = priv;
8619 struct wpa_driver_nl80211_data *drv = bss->drv;
8620 struct nl_msg *msg;
8621 int ret = -ENOBUFS;
8622
8623 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT) ||
8624 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_CHANNEL_SWITCH))
8625 return -EOPNOTSUPP;
8626
8627 wpa_printf(MSG_DEBUG, "nl80211: Enable TDLS channel switch " MACSTR
8628 " oper_class=%u freq=%u",
8629 MAC2STR(addr), oper_class, params->freq);
8630 msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_TDLS_CHANNEL_SWITCH);
8631 if (!msg ||
8632 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
8633 nla_put_u8(msg, NL80211_ATTR_OPER_CLASS, oper_class) ||
8634 (ret = nl80211_put_freq_params(msg, params))) {
8635 nlmsg_free(msg);
8636 wpa_printf(MSG_DEBUG, "nl80211: Could not build TDLS chan switch");
8637 return ret;
8638 }
8639
8640 return send_and_recv_msgs(drv, msg, NULL, NULL);
8641 }
8642
8643
8644 static int
8645 nl80211_tdls_disable_channel_switch(void *priv, const u8 *addr)
8646 {
8647 struct i802_bss *bss = priv;
8648 struct wpa_driver_nl80211_data *drv = bss->drv;
8649 struct nl_msg *msg;
8650
8651 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT) ||
8652 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_CHANNEL_SWITCH))
8653 return -EOPNOTSUPP;
8654
8655 wpa_printf(MSG_DEBUG, "nl80211: Disable TDLS channel switch " MACSTR,
8656 MAC2STR(addr));
8657 msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH);
8658 if (!msg ||
8659 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) {
8660 nlmsg_free(msg);
8661 wpa_printf(MSG_DEBUG,
8662 "nl80211: Could not build TDLS cancel chan switch");
8663 return -ENOBUFS;
8664 }
8665
8666 return send_and_recv_msgs(drv, msg, NULL, NULL);
8667 }
8668
8669 #endif /* CONFIG TDLS */
8670
8671
8672 static int driver_nl80211_set_key(const char *ifname, void *priv,
8673 enum wpa_alg alg, const u8 *addr,
8674 int key_idx, int set_tx,
8675 const u8 *seq, size_t seq_len,
8676 const u8 *key, size_t key_len)
8677 {
8678 struct i802_bss *bss = priv;
8679 return wpa_driver_nl80211_set_key(ifname, bss, alg, addr, key_idx,
8680 set_tx, seq, seq_len, key, key_len);
8681 }
8682
8683
8684 static int driver_nl80211_scan2(void *priv,
8685 struct wpa_driver_scan_params *params)
8686 {
8687 struct i802_bss *bss = priv;
8688 #ifdef CONFIG_DRIVER_NL80211_QCA
8689 struct wpa_driver_nl80211_data *drv = bss->drv;
8690
8691 /*
8692 * Do a vendor specific scan if possible. If only_new_results is
8693 * set, do a normal scan since a kernel (cfg80211) BSS cache flush
8694 * cannot be achieved through a vendor scan. The below condition may
8695 * need to be modified if new scan flags are added in the future whose
8696 * functionality can only be achieved through a normal scan.
8697 */
8698 if (drv->scan_vendor_cmd_avail && !params->only_new_results)
8699 return wpa_driver_nl80211_vendor_scan(bss, params);
8700 #endif /* CONFIG_DRIVER_NL80211_QCA */
8701 return wpa_driver_nl80211_scan(bss, params);
8702 }
8703
8704
8705 static int driver_nl80211_deauthenticate(void *priv, const u8 *addr,
8706 u16 reason_code)
8707 {
8708 struct i802_bss *bss = priv;
8709 return wpa_driver_nl80211_deauthenticate(bss, addr, reason_code);
8710 }
8711
8712
8713 static int driver_nl80211_authenticate(void *priv,
8714 struct wpa_driver_auth_params *params)
8715 {
8716 struct i802_bss *bss = priv;
8717 return wpa_driver_nl80211_authenticate(bss, params);
8718 }
8719
8720
8721 static void driver_nl80211_deinit(void *priv)
8722 {
8723 struct i802_bss *bss = priv;
8724 wpa_driver_nl80211_deinit(bss);
8725 }
8726
8727
8728 static int driver_nl80211_if_remove(void *priv, enum wpa_driver_if_type type,
8729 const char *ifname)
8730 {
8731 struct i802_bss *bss = priv;
8732 return wpa_driver_nl80211_if_remove(bss, type, ifname);
8733 }
8734
8735
8736 static int driver_nl80211_send_mlme(void *priv, const u8 *data,
8737 size_t data_len, int noack,
8738 unsigned int freq,
8739 const u16 *csa_offs, size_t csa_offs_len)
8740 {
8741 struct i802_bss *bss = priv;
8742 return wpa_driver_nl80211_send_mlme(bss, data, data_len, noack,
8743 freq, 0, 0, 0, csa_offs,
8744 csa_offs_len);
8745 }
8746
8747
8748 static int driver_nl80211_sta_remove(void *priv, const u8 *addr)
8749 {
8750 struct i802_bss *bss = priv;
8751 return wpa_driver_nl80211_sta_remove(bss, addr, -1, 0);
8752 }
8753
8754
8755 static int driver_nl80211_set_sta_vlan(void *priv, const u8 *addr,
8756 const char *ifname, int vlan_id)
8757 {
8758 struct i802_bss *bss = priv;
8759 return i802_set_sta_vlan(bss, addr, ifname, vlan_id);
8760 }
8761
8762
8763 static int driver_nl80211_read_sta_data(void *priv,
8764 struct hostap_sta_driver_data *data,
8765 const u8 *addr)
8766 {
8767 struct i802_bss *bss = priv;
8768
8769 os_memset(data, 0, sizeof(*data));
8770 return i802_read_sta_data(bss, data, addr);
8771 }
8772
8773
8774 static int driver_nl80211_send_action(void *priv, unsigned int freq,
8775 unsigned int wait_time,
8776 const u8 *dst, const u8 *src,
8777 const u8 *bssid,
8778 const u8 *data, size_t data_len,
8779 int no_cck)
8780 {
8781 struct i802_bss *bss = priv;
8782 return wpa_driver_nl80211_send_action(bss, freq, wait_time, dst, src,
8783 bssid, data, data_len, no_cck);
8784 }
8785
8786
8787 static int driver_nl80211_probe_req_report(void *priv, int report)
8788 {
8789 struct i802_bss *bss = priv;
8790 return wpa_driver_nl80211_probe_req_report(bss, report);
8791 }
8792
8793
8794 static int wpa_driver_nl80211_update_ft_ies(void *priv, const u8 *md,
8795 const u8 *ies, size_t ies_len)
8796 {
8797 int ret;
8798 struct nl_msg *msg;
8799 struct i802_bss *bss = priv;
8800 struct wpa_driver_nl80211_data *drv = bss->drv;
8801 u16 mdid = WPA_GET_LE16(md);
8802
8803 wpa_printf(MSG_DEBUG, "nl80211: Updating FT IEs");
8804 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_UPDATE_FT_IES)) ||
8805 nla_put(msg, NL80211_ATTR_IE, ies_len, ies) ||
8806 nla_put_u16(msg, NL80211_ATTR_MDID, mdid)) {
8807 nlmsg_free(msg);
8808 return -ENOBUFS;
8809 }
8810
8811 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8812 if (ret) {
8813 wpa_printf(MSG_DEBUG, "nl80211: update_ft_ies failed "
8814 "err=%d (%s)", ret, strerror(-ret));
8815 }
8816
8817 return ret;
8818 }
8819
8820
8821 static int nl80211_update_dh_ie(void *priv, const u8 *peer_mac,
8822 u16 reason_code, const u8 *ie, size_t ie_len)
8823 {
8824 int ret;
8825 struct nl_msg *msg;
8826 struct i802_bss *bss = priv;
8827 struct wpa_driver_nl80211_data *drv = bss->drv;
8828
8829 wpa_printf(MSG_DEBUG, "nl80211: Updating DH IE peer: " MACSTR
8830 " reason %u", MAC2STR(peer_mac), reason_code);
8831 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_UPDATE_OWE_INFO)) ||
8832 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer_mac) ||
8833 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, reason_code) ||
8834 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie))) {
8835 nlmsg_free(msg);
8836 return -ENOBUFS;
8837 }
8838
8839 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8840 if (ret) {
8841 wpa_printf(MSG_DEBUG,
8842 "nl80211: update_dh_ie failed err=%d (%s)",
8843 ret, strerror(-ret));
8844 }
8845
8846 return ret;
8847 }
8848
8849
8850 static const u8 * wpa_driver_nl80211_get_macaddr(void *priv)
8851 {
8852 struct i802_bss *bss = priv;
8853 struct wpa_driver_nl80211_data *drv = bss->drv;
8854
8855 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE)
8856 return NULL;
8857
8858 return bss->addr;
8859 }
8860
8861
8862 static const char * scan_state_str(enum scan_states scan_state)
8863 {
8864 switch (scan_state) {
8865 case NO_SCAN:
8866 return "NO_SCAN";
8867 case SCAN_REQUESTED:
8868 return "SCAN_REQUESTED";
8869 case SCAN_STARTED:
8870 return "SCAN_STARTED";
8871 case SCAN_COMPLETED:
8872 return "SCAN_COMPLETED";
8873 case SCAN_ABORTED:
8874 return "SCAN_ABORTED";
8875 case SCHED_SCAN_STARTED:
8876 return "SCHED_SCAN_STARTED";
8877 case SCHED_SCAN_STOPPED:
8878 return "SCHED_SCAN_STOPPED";
8879 case SCHED_SCAN_RESULTS:
8880 return "SCHED_SCAN_RESULTS";
8881 }
8882
8883 return "??";
8884 }
8885
8886
8887 static int wpa_driver_nl80211_status(void *priv, char *buf, size_t buflen)
8888 {
8889 struct i802_bss *bss = priv;
8890 struct wpa_driver_nl80211_data *drv = bss->drv;
8891 int res;
8892 char *pos, *end;
8893 struct nl_msg *msg;
8894 char alpha2[3] = { 0, 0, 0 };
8895
8896 pos = buf;
8897 end = buf + buflen;
8898
8899 res = os_snprintf(pos, end - pos,
8900 "ifindex=%d\n"
8901 "ifname=%s\n"
8902 "brname=%s\n"
8903 "addr=" MACSTR "\n"
8904 "freq=%d\n"
8905 "%s%s%s%s%s%s",
8906 bss->ifindex,
8907 bss->ifname,
8908 bss->brname,
8909 MAC2STR(bss->addr),
8910 bss->freq,
8911 bss->beacon_set ? "beacon_set=1\n" : "",
8912 bss->added_if_into_bridge ?
8913 "added_if_into_bridge=1\n" : "",
8914 bss->already_in_bridge ? "already_in_bridge=1\n" : "",
8915 bss->added_bridge ? "added_bridge=1\n" : "",
8916 bss->in_deinit ? "in_deinit=1\n" : "",
8917 bss->if_dynamic ? "if_dynamic=1\n" : "");
8918 if (os_snprintf_error(end - pos, res))
8919 return pos - buf;
8920 pos += res;
8921
8922 if (bss->wdev_id_set) {
8923 res = os_snprintf(pos, end - pos, "wdev_id=%llu\n",
8924 (unsigned long long) bss->wdev_id);
8925 if (os_snprintf_error(end - pos, res))
8926 return pos - buf;
8927 pos += res;
8928 }
8929
8930 res = os_snprintf(pos, end - pos,
8931 "phyname=%s\n"
8932 "perm_addr=" MACSTR "\n"
8933 "drv_ifindex=%d\n"
8934 "operstate=%d\n"
8935 "scan_state=%s\n"
8936 "auth_bssid=" MACSTR "\n"
8937 "auth_attempt_bssid=" MACSTR "\n"
8938 "bssid=" MACSTR "\n"
8939 "prev_bssid=" MACSTR "\n"
8940 "associated=%d\n"
8941 "assoc_freq=%u\n"
8942 "monitor_sock=%d\n"
8943 "monitor_ifidx=%d\n"
8944 "monitor_refcount=%d\n"
8945 "last_mgmt_freq=%u\n"
8946 "eapol_tx_sock=%d\n"
8947 "%s%s%s%s%s%s%s%s%s%s%s%s%s",
8948 drv->phyname,
8949 MAC2STR(drv->perm_addr),
8950 drv->ifindex,
8951 drv->operstate,
8952 scan_state_str(drv->scan_state),
8953 MAC2STR(drv->auth_bssid),
8954 MAC2STR(drv->auth_attempt_bssid),
8955 MAC2STR(drv->bssid),
8956 MAC2STR(drv->prev_bssid),
8957 drv->associated,
8958 drv->assoc_freq,
8959 drv->monitor_sock,
8960 drv->monitor_ifidx,
8961 drv->monitor_refcount,
8962 drv->last_mgmt_freq,
8963 drv->eapol_tx_sock,
8964 drv->ignore_if_down_event ?
8965 "ignore_if_down_event=1\n" : "",
8966 drv->scan_complete_events ?
8967 "scan_complete_events=1\n" : "",
8968 drv->disabled_11b_rates ?
8969 "disabled_11b_rates=1\n" : "",
8970 drv->pending_remain_on_chan ?
8971 "pending_remain_on_chan=1\n" : "",
8972 drv->in_interface_list ? "in_interface_list=1\n" : "",
8973 drv->device_ap_sme ? "device_ap_sme=1\n" : "",
8974 drv->poll_command_supported ?
8975 "poll_command_supported=1\n" : "",
8976 drv->data_tx_status ? "data_tx_status=1\n" : "",
8977 drv->scan_for_auth ? "scan_for_auth=1\n" : "",
8978 drv->retry_auth ? "retry_auth=1\n" : "",
8979 drv->use_monitor ? "use_monitor=1\n" : "",
8980 drv->ignore_next_local_disconnect ?
8981 "ignore_next_local_disconnect=1\n" : "",
8982 drv->ignore_next_local_deauth ?
8983 "ignore_next_local_deauth=1\n" : "");
8984 if (os_snprintf_error(end - pos, res))
8985 return pos - buf;
8986 pos += res;
8987
8988 if (drv->has_capability) {
8989 res = os_snprintf(pos, end - pos,
8990 "capa.key_mgmt=0x%x\n"
8991 "capa.enc=0x%x\n"
8992 "capa.auth=0x%x\n"
8993 "capa.flags=0x%llx\n"
8994 "capa.rrm_flags=0x%x\n"
8995 "capa.max_scan_ssids=%d\n"
8996 "capa.max_sched_scan_ssids=%d\n"
8997 "capa.sched_scan_supported=%d\n"
8998 "capa.max_match_sets=%d\n"
8999 "capa.max_remain_on_chan=%u\n"
9000 "capa.max_stations=%u\n"
9001 "capa.probe_resp_offloads=0x%x\n"
9002 "capa.max_acl_mac_addrs=%u\n"
9003 "capa.num_multichan_concurrent=%u\n"
9004 "capa.mac_addr_rand_sched_scan_supported=%d\n"
9005 "capa.mac_addr_rand_scan_supported=%d\n"
9006 "capa.conc_capab=%u\n"
9007 "capa.max_conc_chan_2_4=%u\n"
9008 "capa.max_conc_chan_5_0=%u\n"
9009 "capa.max_sched_scan_plans=%u\n"
9010 "capa.max_sched_scan_plan_interval=%u\n"
9011 "capa.max_sched_scan_plan_iterations=%u\n",
9012 drv->capa.key_mgmt,
9013 drv->capa.enc,
9014 drv->capa.auth,
9015 (unsigned long long) drv->capa.flags,
9016 drv->capa.rrm_flags,
9017 drv->capa.max_scan_ssids,
9018 drv->capa.max_sched_scan_ssids,
9019 drv->capa.sched_scan_supported,
9020 drv->capa.max_match_sets,
9021 drv->capa.max_remain_on_chan,
9022 drv->capa.max_stations,
9023 drv->capa.probe_resp_offloads,
9024 drv->capa.max_acl_mac_addrs,
9025 drv->capa.num_multichan_concurrent,
9026 drv->capa.mac_addr_rand_sched_scan_supported,
9027 drv->capa.mac_addr_rand_scan_supported,
9028 drv->capa.conc_capab,
9029 drv->capa.max_conc_chan_2_4,
9030 drv->capa.max_conc_chan_5_0,
9031 drv->capa.max_sched_scan_plans,
9032 drv->capa.max_sched_scan_plan_interval,
9033 drv->capa.max_sched_scan_plan_iterations);
9034 if (os_snprintf_error(end - pos, res))
9035 return pos - buf;
9036 pos += res;
9037 }
9038
9039 msg = nlmsg_alloc();
9040 if (msg &&
9041 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG) &&
9042 nla_put_u32(msg, NL80211_ATTR_WIPHY, drv->wiphy_idx) == 0) {
9043 if (send_and_recv_msgs(drv, msg, nl80211_get_country,
9044 alpha2) == 0 &&
9045 alpha2[0]) {
9046 res = os_snprintf(pos, end - pos, "country=%s\n",
9047 alpha2);
9048 if (os_snprintf_error(end - pos, res))
9049 return pos - buf;
9050 pos += res;
9051 }
9052 } else {
9053 nlmsg_free(msg);
9054 }
9055
9056 return pos - buf;
9057 }
9058
9059
9060 static int set_beacon_data(struct nl_msg *msg, struct beacon_data *settings)
9061 {
9062 if ((settings->head &&
9063 nla_put(msg, NL80211_ATTR_BEACON_HEAD,
9064 settings->head_len, settings->head)) ||
9065 (settings->tail &&
9066 nla_put(msg, NL80211_ATTR_BEACON_TAIL,
9067 settings->tail_len, settings->tail)) ||
9068 (settings->beacon_ies &&
9069 nla_put(msg, NL80211_ATTR_IE,
9070 settings->beacon_ies_len, settings->beacon_ies)) ||
9071 (settings->proberesp_ies &&
9072 nla_put(msg, NL80211_ATTR_IE_PROBE_RESP,
9073 settings->proberesp_ies_len, settings->proberesp_ies)) ||
9074 (settings->assocresp_ies &&
9075 nla_put(msg, NL80211_ATTR_IE_ASSOC_RESP,
9076 settings->assocresp_ies_len, settings->assocresp_ies)) ||
9077 (settings->probe_resp &&
9078 nla_put(msg, NL80211_ATTR_PROBE_RESP,
9079 settings->probe_resp_len, settings->probe_resp)))
9080 return -ENOBUFS;
9081
9082 return 0;
9083 }
9084
9085
9086 static int nl80211_switch_channel(void *priv, struct csa_settings *settings)
9087 {
9088 struct nl_msg *msg;
9089 struct i802_bss *bss = priv;
9090 struct wpa_driver_nl80211_data *drv = bss->drv;
9091 struct nlattr *beacon_csa;
9092 int ret = -ENOBUFS;
9093 int csa_off_len = 0;
9094 int i;
9095
9096 wpa_printf(MSG_DEBUG, "nl80211: Channel switch request (cs_count=%u block_tx=%u freq=%d width=%d cf1=%d cf2=%d)",
9097 settings->cs_count, settings->block_tx,
9098 settings->freq_params.freq, settings->freq_params.bandwidth,
9099 settings->freq_params.center_freq1,
9100 settings->freq_params.center_freq2);
9101
9102 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_AP_CSA)) {
9103 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support channel switch command");
9104 return -EOPNOTSUPP;
9105 }
9106
9107 if (drv->nlmode != NL80211_IFTYPE_AP &&
9108 drv->nlmode != NL80211_IFTYPE_P2P_GO &&
9109 drv->nlmode != NL80211_IFTYPE_MESH_POINT)
9110 return -EOPNOTSUPP;
9111
9112 /*
9113 * Remove empty counters, assuming Probe Response and Beacon frame
9114 * counters match. This implementation assumes that there are only two
9115 * counters.
9116 */
9117 if (settings->counter_offset_beacon[0] &&
9118 !settings->counter_offset_beacon[1]) {
9119 csa_off_len = 1;
9120 } else if (settings->counter_offset_beacon[1] &&
9121 !settings->counter_offset_beacon[0]) {
9122 csa_off_len = 1;
9123 settings->counter_offset_beacon[0] =
9124 settings->counter_offset_beacon[1];
9125 settings->counter_offset_presp[0] =
9126 settings->counter_offset_presp[1];
9127 } else if (settings->counter_offset_beacon[1] &&
9128 settings->counter_offset_beacon[0]) {
9129 csa_off_len = 2;
9130 } else {
9131 wpa_printf(MSG_ERROR, "nl80211: No CSA counters provided");
9132 return -EINVAL;
9133 }
9134
9135 /* Check CSA counters validity */
9136 if (drv->capa.max_csa_counters &&
9137 csa_off_len > drv->capa.max_csa_counters) {
9138 wpa_printf(MSG_ERROR,
9139 "nl80211: Too many CSA counters provided");
9140 return -EINVAL;
9141 }
9142
9143 if (!settings->beacon_csa.tail)
9144 return -EINVAL;
9145
9146 for (i = 0; i < csa_off_len; i++) {
9147 u16 csa_c_off_bcn = settings->counter_offset_beacon[i];
9148 u16 csa_c_off_presp = settings->counter_offset_presp[i];
9149
9150 if ((settings->beacon_csa.tail_len <= csa_c_off_bcn) ||
9151 (settings->beacon_csa.tail[csa_c_off_bcn] !=
9152 settings->cs_count))
9153 return -EINVAL;
9154
9155 if (settings->beacon_csa.probe_resp &&
9156 ((settings->beacon_csa.probe_resp_len <=
9157 csa_c_off_presp) ||
9158 (settings->beacon_csa.probe_resp[csa_c_off_presp] !=
9159 settings->cs_count)))
9160 return -EINVAL;
9161 }
9162
9163 if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_CHANNEL_SWITCH)) ||
9164 nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT,
9165 settings->cs_count) ||
9166 (ret = nl80211_put_freq_params(msg, &settings->freq_params)) ||
9167 (settings->block_tx &&
9168 nla_put_flag(msg, NL80211_ATTR_CH_SWITCH_BLOCK_TX)))
9169 goto error;
9170
9171 /* beacon_after params */
9172 ret = set_beacon_data(msg, &settings->beacon_after);
9173 if (ret)
9174 goto error;
9175
9176 /* beacon_csa params */
9177 beacon_csa = nla_nest_start(msg, NL80211_ATTR_CSA_IES);
9178 if (!beacon_csa)
9179 goto fail;
9180
9181 ret = set_beacon_data(msg, &settings->beacon_csa);
9182 if (ret)
9183 goto error;
9184
9185 if (nla_put(msg, NL80211_ATTR_CSA_C_OFF_BEACON,
9186 csa_off_len * sizeof(u16),
9187 settings->counter_offset_beacon) ||
9188 (settings->beacon_csa.probe_resp &&
9189 nla_put(msg, NL80211_ATTR_CSA_C_OFF_PRESP,
9190 csa_off_len * sizeof(u16),
9191 settings->counter_offset_presp)))
9192 goto fail;
9193
9194 nla_nest_end(msg, beacon_csa);
9195 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
9196 if (ret) {
9197 wpa_printf(MSG_DEBUG, "nl80211: switch_channel failed err=%d (%s)",
9198 ret, strerror(-ret));
9199 }
9200 return ret;
9201
9202 fail:
9203 ret = -ENOBUFS;
9204 error:
9205 nlmsg_free(msg);
9206 wpa_printf(MSG_DEBUG, "nl80211: Could not build channel switch request");
9207 return ret;
9208 }
9209
9210
9211 static int nl80211_add_ts(void *priv, u8 tsid, const u8 *addr,
9212 u8 user_priority, u16 admitted_time)
9213 {
9214 struct i802_bss *bss = priv;
9215 struct wpa_driver_nl80211_data *drv = bss->drv;
9216 struct nl_msg *msg;
9217 int ret;
9218
9219 wpa_printf(MSG_DEBUG,
9220 "nl80211: add_ts request: tsid=%u admitted_time=%u up=%d",
9221 tsid, admitted_time, user_priority);
9222
9223 if (!is_sta_interface(drv->nlmode))
9224 return -ENOTSUP;
9225
9226 msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_ADD_TX_TS);
9227 if (!msg ||
9228 nla_put_u8(msg, NL80211_ATTR_TSID, tsid) ||
9229 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9230 nla_put_u8(msg, NL80211_ATTR_USER_PRIO, user_priority) ||
9231 nla_put_u16(msg, NL80211_ATTR_ADMITTED_TIME, admitted_time)) {
9232 nlmsg_free(msg);
9233 return -ENOBUFS;
9234 }
9235
9236 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
9237 if (ret)
9238 wpa_printf(MSG_DEBUG, "nl80211: add_ts failed err=%d (%s)",
9239 ret, strerror(-ret));
9240 return ret;
9241 }
9242
9243
9244 static int nl80211_del_ts(void *priv, u8 tsid, const u8 *addr)
9245 {
9246 struct i802_bss *bss = priv;
9247 struct wpa_driver_nl80211_data *drv = bss->drv;
9248 struct nl_msg *msg;
9249 int ret;
9250
9251 wpa_printf(MSG_DEBUG, "nl80211: del_ts request: tsid=%u", tsid);
9252
9253 if (!is_sta_interface(drv->nlmode))
9254 return -ENOTSUP;
9255
9256 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_DEL_TX_TS)) ||
9257 nla_put_u8(msg, NL80211_ATTR_TSID, tsid) ||
9258 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) {
9259 nlmsg_free(msg);
9260 return -ENOBUFS;
9261 }
9262
9263 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
9264 if (ret)
9265 wpa_printf(MSG_DEBUG, "nl80211: del_ts failed err=%d (%s)",
9266 ret, strerror(-ret));
9267 return ret;
9268 }
9269
9270
9271 #ifdef CONFIG_TESTING_OPTIONS
9272 static int cmd_reply_handler(struct nl_msg *msg, void *arg)
9273 {
9274 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
9275 struct wpabuf *buf = arg;
9276
9277 if (!buf)
9278 return NL_SKIP;
9279
9280 if ((size_t) genlmsg_attrlen(gnlh, 0) > wpabuf_tailroom(buf)) {
9281 wpa_printf(MSG_INFO, "nl80211: insufficient buffer space for reply");
9282 return NL_SKIP;
9283 }
9284
9285 wpabuf_put_data(buf, genlmsg_attrdata(gnlh, 0),
9286 genlmsg_attrlen(gnlh, 0));
9287
9288 return NL_SKIP;
9289 }
9290 #endif /* CONFIG_TESTING_OPTIONS */
9291
9292
9293 static int vendor_reply_handler(struct nl_msg *msg, void *arg)
9294 {
9295 struct nlattr *tb[NL80211_ATTR_MAX + 1];
9296 struct nlattr *nl_vendor_reply, *nl;
9297 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
9298 struct wpabuf *buf = arg;
9299 int rem;
9300
9301 if (!buf)
9302 return NL_SKIP;
9303
9304 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
9305 genlmsg_attrlen(gnlh, 0), NULL);
9306 nl_vendor_reply = tb[NL80211_ATTR_VENDOR_DATA];
9307
9308 if (!nl_vendor_reply)
9309 return NL_SKIP;
9310
9311 if ((size_t) nla_len(nl_vendor_reply) > wpabuf_tailroom(buf)) {
9312 wpa_printf(MSG_INFO, "nl80211: Vendor command: insufficient buffer space for reply");
9313 return NL_SKIP;
9314 }
9315
9316 nla_for_each_nested(nl, nl_vendor_reply, rem) {
9317 wpabuf_put_data(buf, nla_data(nl), nla_len(nl));
9318 }
9319
9320 return NL_SKIP;
9321 }
9322
9323
9324 static int nl80211_vendor_cmd(void *priv, unsigned int vendor_id,
9325 unsigned int subcmd, const u8 *data,
9326 size_t data_len, struct wpabuf *buf)
9327 {
9328 struct i802_bss *bss = priv;
9329 struct wpa_driver_nl80211_data *drv = bss->drv;
9330 struct nl_msg *msg;
9331 int ret;
9332
9333 #ifdef CONFIG_TESTING_OPTIONS
9334 if (vendor_id == 0xffffffff) {
9335 msg = nlmsg_alloc();
9336 if (!msg)
9337 return -ENOMEM;
9338
9339 nl80211_cmd(drv, msg, 0, subcmd);
9340 if (nlmsg_append(msg, (void *) data, data_len, NLMSG_ALIGNTO) <
9341 0)
9342 goto fail;
9343 ret = send_and_recv_msgs(drv, msg, cmd_reply_handler, buf);
9344 if (ret)
9345 wpa_printf(MSG_DEBUG, "nl80211: command failed err=%d",
9346 ret);
9347 return ret;
9348 }
9349 #endif /* CONFIG_TESTING_OPTIONS */
9350
9351 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_VENDOR)) ||
9352 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, vendor_id) ||
9353 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD, subcmd) ||
9354 (data &&
9355 nla_put(msg, NL80211_ATTR_VENDOR_DATA, data_len, data)))
9356 goto fail;
9357
9358 ret = send_and_recv_msgs(drv, msg, vendor_reply_handler, buf);
9359 if (ret)
9360 wpa_printf(MSG_DEBUG, "nl80211: vendor command failed err=%d",
9361 ret);
9362 return ret;
9363
9364 fail:
9365 nlmsg_free(msg);
9366 return -ENOBUFS;
9367 }
9368
9369
9370 static int nl80211_set_qos_map(void *priv, const u8 *qos_map_set,
9371 u8 qos_map_set_len)
9372 {
9373 struct i802_bss *bss = priv;
9374 struct wpa_driver_nl80211_data *drv = bss->drv;
9375 struct nl_msg *msg;
9376 int ret;
9377
9378 wpa_hexdump(MSG_DEBUG, "nl80211: Setting QoS Map",
9379 qos_map_set, qos_map_set_len);
9380
9381 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_SET_QOS_MAP)) ||
9382 nla_put(msg, NL80211_ATTR_QOS_MAP, qos_map_set_len, qos_map_set)) {
9383 nlmsg_free(msg);
9384 return -ENOBUFS;
9385 }
9386
9387 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
9388 if (ret)
9389 wpa_printf(MSG_DEBUG, "nl80211: Setting QoS Map failed");
9390
9391 return ret;
9392 }
9393
9394
9395 static int nl80211_set_wowlan(void *priv,
9396 const struct wowlan_triggers *triggers)
9397 {
9398 struct i802_bss *bss = priv;
9399 struct wpa_driver_nl80211_data *drv = bss->drv;
9400 struct nl_msg *msg;
9401 struct nlattr *wowlan_triggers;
9402 int ret;
9403
9404 wpa_printf(MSG_DEBUG, "nl80211: Setting wowlan");
9405
9406 if (!(msg = nl80211_cmd_msg(bss, 0, NL80211_CMD_SET_WOWLAN)) ||
9407 !(wowlan_triggers = nla_nest_start(msg,
9408 NL80211_ATTR_WOWLAN_TRIGGERS)) ||
9409 (triggers->any &&
9410 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
9411 (triggers->disconnect &&
9412 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
9413 (triggers->magic_pkt &&
9414 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
9415 (triggers->gtk_rekey_failure &&
9416 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
9417 (triggers->eap_identity_req &&
9418 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
9419 (triggers->four_way_handshake &&
9420 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
9421 (triggers->rfkill_release &&
9422 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))) {
9423 nlmsg_free(msg);
9424 return -ENOBUFS;
9425 }
9426
9427 nla_nest_end(msg, wowlan_triggers);
9428
9429 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
9430 if (ret)
9431 wpa_printf(MSG_DEBUG, "nl80211: Setting wowlan failed");
9432
9433 return ret;
9434 }
9435
9436
9437 #ifdef CONFIG_DRIVER_NL80211_QCA
9438 static int nl80211_roaming(void *priv, int allowed, const u8 *bssid)
9439 {
9440 struct i802_bss *bss = priv;
9441 struct wpa_driver_nl80211_data *drv = bss->drv;
9442 struct nl_msg *msg;
9443 struct nlattr *params;
9444
9445 wpa_printf(MSG_DEBUG, "nl80211: Roaming policy: allowed=%d", allowed);
9446
9447 if (!drv->roaming_vendor_cmd_avail) {
9448 wpa_printf(MSG_DEBUG,
9449 "nl80211: Ignore roaming policy change since driver does not provide command for setting it");
9450 return -1;
9451 }
9452
9453 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
9454 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
9455 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
9456 QCA_NL80211_VENDOR_SUBCMD_ROAMING) ||
9457 !(params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) ||
9458 nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_ROAMING_POLICY,
9459 allowed ? QCA_ROAMING_ALLOWED_WITHIN_ESS :
9460 QCA_ROAMING_NOT_ALLOWED) ||
9461 (bssid &&
9462 nla_put(msg, QCA_WLAN_VENDOR_ATTR_MAC_ADDR, ETH_ALEN, bssid))) {
9463 nlmsg_free(msg);
9464 return -1;
9465 }
9466 nla_nest_end(msg, params);
9467
9468 return send_and_recv_msgs(drv, msg, NULL, NULL);
9469 }
9470
9471
9472 static int nl80211_disable_fils(void *priv, int disable)
9473 {
9474 struct i802_bss *bss = priv;
9475 struct wpa_driver_nl80211_data *drv = bss->drv;
9476 struct nl_msg *msg;
9477 struct nlattr *params;
9478
9479 wpa_printf(MSG_DEBUG, "nl80211: Disable FILS=%d", disable);
9480
9481 if (!drv->set_wifi_conf_vendor_cmd_avail)
9482 return -1;
9483
9484 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
9485 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
9486 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
9487 QCA_NL80211_VENDOR_SUBCMD_SET_WIFI_CONFIGURATION) ||
9488 !(params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) ||
9489 nla_put_u8(msg, QCA_WLAN_VENDOR_ATTR_CONFIG_DISABLE_FILS,
9490 disable)) {
9491 nlmsg_free(msg);
9492 return -1;
9493 }
9494 nla_nest_end(msg, params);
9495
9496 return send_and_recv_msgs(drv, msg, NULL, NULL);
9497 }
9498
9499
9500 /* Reserved QCA_WLAN_VENDOR_ATTR_ROAMING_REQ_ID value for wpa_supplicant */
9501 #define WPA_SUPPLICANT_CLIENT_ID 1
9502
9503 static int nl80211_set_bssid_blacklist(void *priv, unsigned int num_bssid,
9504 const u8 *bssid)
9505 {
9506 struct i802_bss *bss = priv;
9507 struct wpa_driver_nl80211_data *drv = bss->drv;
9508 struct nl_msg *msg;
9509 struct nlattr *params, *nlbssids, *attr;
9510 unsigned int i;
9511
9512 wpa_printf(MSG_DEBUG, "nl80211: Set blacklist BSSID (num=%u)",
9513 num_bssid);
9514
9515 if (!drv->roam_vendor_cmd_avail)
9516 return -1;
9517
9518 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
9519 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
9520 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
9521 QCA_NL80211_VENDOR_SUBCMD_ROAM) ||
9522 !(params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) ||
9523 nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_ROAMING_SUBCMD,
9524 QCA_WLAN_VENDOR_ROAMING_SUBCMD_SET_BLACKLIST_BSSID) ||
9525 nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_ROAMING_REQ_ID,
9526 WPA_SUPPLICANT_CLIENT_ID) ||
9527 nla_put_u32(msg,
9528 QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_SET_BSSID_PARAMS_NUM_BSSID,
9529 num_bssid))
9530 goto fail;
9531
9532 nlbssids = nla_nest_start(
9533 msg, QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_SET_BSSID_PARAMS);
9534 if (!nlbssids)
9535 goto fail;
9536
9537 for (i = 0; i < num_bssid; i++) {
9538 attr = nla_nest_start(msg, i);
9539 if (!attr)
9540 goto fail;
9541 if (nla_put(msg,
9542 QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_SET_BSSID_PARAMS_BSSID,
9543 ETH_ALEN, &bssid[i * ETH_ALEN]))
9544 goto fail;
9545 wpa_printf(MSG_DEBUG, "nl80211: BSSID[%u]: " MACSTR, i,
9546 MAC2STR(&bssid[i * ETH_ALEN]));
9547 nla_nest_end(msg, attr);
9548 }
9549 nla_nest_end(msg, nlbssids);
9550 nla_nest_end(msg, params);
9551
9552 return send_and_recv_msgs(drv, msg, NULL, NULL);
9553
9554 fail:
9555 nlmsg_free(msg);
9556 return -1;
9557 }
9558
9559 #endif /* CONFIG_DRIVER_NL80211_QCA */
9560
9561
9562 static int nl80211_set_mac_addr(void *priv, const u8 *addr)
9563 {
9564 struct i802_bss *bss = priv;
9565 struct wpa_driver_nl80211_data *drv = bss->drv;
9566 int new_addr = addr != NULL;
9567
9568 if (TEST_FAIL())
9569 return -1;
9570
9571 if (!addr)
9572 addr = drv->perm_addr;
9573
9574 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0) < 0)
9575 return -1;
9576
9577 if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname, addr) < 0)
9578 {
9579 wpa_printf(MSG_DEBUG,
9580 "nl80211: failed to set_mac_addr for %s to " MACSTR,
9581 bss->ifname, MAC2STR(addr));
9582 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname,
9583 1) < 0) {
9584 wpa_printf(MSG_DEBUG,
9585 "nl80211: Could not restore interface UP after failed set_mac_addr");
9586 }
9587 return -1;
9588 }
9589
9590 wpa_printf(MSG_DEBUG, "nl80211: set_mac_addr for %s to " MACSTR,
9591 bss->ifname, MAC2STR(addr));
9592 drv->addr_changed = new_addr;
9593 os_memcpy(bss->addr, addr, ETH_ALEN);
9594
9595 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1) < 0)
9596 {
9597 wpa_printf(MSG_DEBUG,
9598 "nl80211: Could not restore interface UP after set_mac_addr");
9599 }
9600
9601 return 0;
9602 }
9603
9604
9605 #ifdef CONFIG_MESH
9606
9607 static int wpa_driver_nl80211_init_mesh(void *priv)
9608 {
9609 if (wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_MESH_POINT)) {
9610 wpa_printf(MSG_INFO,
9611 "nl80211: Failed to set interface into mesh mode");
9612 return -1;
9613 }
9614 return 0;
9615 }
9616
9617
9618 static int nl80211_put_mesh_id(struct nl_msg *msg, const u8 *mesh_id,
9619 size_t mesh_id_len)
9620 {
9621 if (mesh_id) {
9622 wpa_printf(MSG_DEBUG, " * Mesh ID (SSID)=%s",
9623 wpa_ssid_txt(mesh_id, mesh_id_len));
9624 return nla_put(msg, NL80211_ATTR_MESH_ID, mesh_id_len, mesh_id);
9625 }
9626
9627 return 0;
9628 }
9629
9630
9631 static int nl80211_put_mesh_config(struct nl_msg *msg,
9632 struct wpa_driver_mesh_bss_params *params)
9633 {
9634 struct nlattr *container;
9635
9636 container = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
9637 if (!container)
9638 return -1;
9639
9640 if (((params->flags & WPA_DRIVER_MESH_CONF_FLAG_AUTO_PLINKS) &&
9641 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
9642 params->auto_plinks)) ||
9643 ((params->flags & WPA_DRIVER_MESH_CONF_FLAG_MAX_PEER_LINKS) &&
9644 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
9645 params->max_peer_links)) ||
9646 ((params->flags & WPA_DRIVER_MESH_CONF_FLAG_RSSI_THRESHOLD) &&
9647 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
9648 params->rssi_threshold)))
9649 return -1;
9650
9651 /*
9652 * Set NL80211_MESHCONF_PLINK_TIMEOUT even if user mpm is used because
9653 * the timer could disconnect stations even in that case.
9654 */
9655 if ((params->flags & WPA_DRIVER_MESH_CONF_FLAG_PEER_LINK_TIMEOUT) &&
9656 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
9657 params->peer_link_timeout)) {
9658 wpa_printf(MSG_ERROR, "nl80211: Failed to set PLINK_TIMEOUT");
9659 return -1;
9660 }
9661
9662 if ((params->flags & WPA_DRIVER_MESH_CONF_FLAG_HT_OP_MODE) &&
9663 nla_put_u16(msg, NL80211_MESHCONF_HT_OPMODE, params->ht_opmode)) {
9664 wpa_printf(MSG_ERROR, "nl80211: Failed to set HT_OP_MODE");
9665 return -1;
9666 }
9667
9668 nla_nest_end(msg, container);
9669
9670 return 0;
9671 }
9672
9673
9674 static int nl80211_join_mesh(struct i802_bss *bss,
9675 struct wpa_driver_mesh_join_params *params)
9676 {
9677 struct wpa_driver_nl80211_data *drv = bss->drv;
9678 struct nl_msg *msg;
9679 struct nlattr *container;
9680 int ret = -1;
9681
9682 wpa_printf(MSG_DEBUG, "nl80211: mesh join (ifindex=%d)", drv->ifindex);
9683 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_JOIN_MESH);
9684 if (!msg ||
9685 nl80211_put_freq_params(msg, &params->freq) ||
9686 nl80211_put_basic_rates(msg, params->basic_rates) ||
9687 nl80211_put_mesh_id(msg, params->meshid, params->meshid_len) ||
9688 nl80211_put_beacon_int(msg, params->beacon_int) ||
9689 nl80211_put_dtim_period(msg, params->dtim_period))
9690 goto fail;
9691
9692 wpa_printf(MSG_DEBUG, " * flags=%08X", params->flags);
9693
9694 container = nla_nest_start(msg, NL80211_ATTR_MESH_SETUP);
9695 if (!container)
9696 goto fail;
9697
9698 if (params->ies) {
9699 wpa_hexdump(MSG_DEBUG, " * IEs", params->ies, params->ie_len);
9700 if (nla_put(msg, NL80211_MESH_SETUP_IE, params->ie_len,
9701 params->ies))
9702 goto fail;
9703 }
9704 /* WPA_DRIVER_MESH_FLAG_OPEN_AUTH is treated as default by nl80211 */
9705 if (params->flags & WPA_DRIVER_MESH_FLAG_SAE_AUTH) {
9706 if (nla_put_u8(msg, NL80211_MESH_SETUP_AUTH_PROTOCOL, 0x1) ||
9707 nla_put_flag(msg, NL80211_MESH_SETUP_USERSPACE_AUTH))
9708 goto fail;
9709 }
9710 if ((params->flags & WPA_DRIVER_MESH_FLAG_AMPE) &&
9711 nla_put_flag(msg, NL80211_MESH_SETUP_USERSPACE_AMPE))
9712 goto fail;
9713 if ((params->flags & WPA_DRIVER_MESH_FLAG_USER_MPM) &&
9714 nla_put_flag(msg, NL80211_MESH_SETUP_USERSPACE_MPM))
9715 goto fail;
9716 nla_nest_end(msg, container);
9717
9718 params->conf.flags |= WPA_DRIVER_MESH_CONF_FLAG_AUTO_PLINKS;
9719 params->conf.flags |= WPA_DRIVER_MESH_CONF_FLAG_PEER_LINK_TIMEOUT;
9720 params->conf.flags |= WPA_DRIVER_MESH_CONF_FLAG_MAX_PEER_LINKS;
9721 if (nl80211_put_mesh_config(msg, &params->conf) < 0)
9722 goto fail;
9723
9724 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
9725 msg = NULL;
9726 if (ret) {
9727 wpa_printf(MSG_DEBUG, "nl80211: mesh join failed: ret=%d (%s)",
9728 ret, strerror(-ret));
9729 goto fail;
9730 }
9731 ret = 0;
9732 drv->assoc_freq = bss->freq = params->freq.freq;
9733 wpa_printf(MSG_DEBUG, "nl80211: mesh join request send successfully");
9734
9735 fail:
9736 nlmsg_free(msg);
9737 return ret;
9738 }
9739
9740
9741 static int
9742 wpa_driver_nl80211_join_mesh(void *priv,
9743 struct wpa_driver_mesh_join_params *params)
9744 {
9745 struct i802_bss *bss = priv;
9746 int ret, timeout;
9747
9748 timeout = params->conf.peer_link_timeout;
9749
9750 /* Disable kernel inactivity timer */
9751 if (params->flags & WPA_DRIVER_MESH_FLAG_USER_MPM)
9752 params->conf.peer_link_timeout = 0;
9753
9754 ret = nl80211_join_mesh(bss, params);
9755 if (ret == -EINVAL && params->conf.peer_link_timeout == 0) {
9756 wpa_printf(MSG_DEBUG,
9757 "nl80211: Mesh join retry for peer_link_timeout");
9758 /*
9759 * Old kernel does not support setting
9760 * NL80211_MESHCONF_PLINK_TIMEOUT to zero, so set 60 seconds
9761 * into future from peer_link_timeout.
9762 */
9763 params->conf.peer_link_timeout = timeout + 60;
9764 ret = nl80211_join_mesh(priv, params);
9765 }
9766
9767 params->conf.peer_link_timeout = timeout;
9768 return ret;
9769 }
9770
9771
9772 static int wpa_driver_nl80211_leave_mesh(void *priv)
9773 {
9774 struct i802_bss *bss = priv;
9775 struct wpa_driver_nl80211_data *drv = bss->drv;
9776 struct nl_msg *msg;
9777 int ret;
9778
9779 wpa_printf(MSG_DEBUG, "nl80211: mesh leave (ifindex=%d)", drv->ifindex);
9780 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_LEAVE_MESH);
9781 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
9782 if (ret) {
9783 wpa_printf(MSG_DEBUG, "nl80211: mesh leave failed: ret=%d (%s)",
9784 ret, strerror(-ret));
9785 } else {
9786 wpa_printf(MSG_DEBUG,
9787 "nl80211: mesh leave request send successfully");
9788 }
9789
9790 if (wpa_driver_nl80211_set_mode(drv->first_bss,
9791 NL80211_IFTYPE_STATION)) {
9792 wpa_printf(MSG_INFO,
9793 "nl80211: Failed to set interface into station mode");
9794 }
9795 return ret;
9796 }
9797
9798
9799 static int nl80211_probe_mesh_link(void *priv, const u8 *addr, const u8 *eth,
9800 size_t len)
9801 {
9802 struct i802_bss *bss = priv;
9803 struct wpa_driver_nl80211_data *drv = bss->drv;
9804 struct nl_msg *msg;
9805 int ret;
9806
9807 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_PROBE_MESH_LINK);
9808 if (!msg ||
9809 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9810 nla_put(msg, NL80211_ATTR_FRAME, len, eth)) {
9811 nlmsg_free(msg);
9812 return -ENOBUFS;
9813 }
9814
9815 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
9816 if (ret) {
9817 wpa_printf(MSG_DEBUG, "nl80211: mesh link probe to " MACSTR
9818 " failed: ret=%d (%s)",
9819 MAC2STR(addr), ret, strerror(-ret));
9820 } else {
9821 wpa_printf(MSG_DEBUG, "nl80211: Mesh link to " MACSTR
9822 " probed successfully", MAC2STR(addr));
9823 }
9824
9825 return ret;
9826 }
9827
9828 #endif /* CONFIG_MESH */
9829
9830
9831 static int wpa_driver_br_add_ip_neigh(void *priv, u8 version,
9832 const u8 *ipaddr, int prefixlen,
9833 const u8 *addr)
9834 {
9835 #ifdef CONFIG_LIBNL3_ROUTE
9836 struct i802_bss *bss = priv;
9837 struct wpa_driver_nl80211_data *drv = bss->drv;
9838 struct rtnl_neigh *rn;
9839 struct nl_addr *nl_ipaddr = NULL;
9840 struct nl_addr *nl_lladdr = NULL;
9841 int family, addrsize;
9842 int res;
9843
9844 if (!ipaddr || prefixlen == 0 || !addr)
9845 return -EINVAL;
9846
9847 if (bss->br_ifindex == 0) {
9848 wpa_printf(MSG_DEBUG,
9849 "nl80211: bridge must be set before adding an ip neigh to it");
9850 return -1;
9851 }
9852
9853 if (!drv->rtnl_sk) {
9854 wpa_printf(MSG_DEBUG,
9855 "nl80211: nl_sock for NETLINK_ROUTE is not initialized");
9856 return -1;
9857 }
9858
9859 if (version == 4) {
9860 family = AF_INET;
9861 addrsize = 4;
9862 } else if (version == 6) {
9863 family = AF_INET6;
9864 addrsize = 16;
9865 } else {
9866 return -EINVAL;
9867 }
9868
9869 rn = rtnl_neigh_alloc();
9870 if (rn == NULL)
9871 return -ENOMEM;
9872
9873 /* set the destination ip address for neigh */
9874 nl_ipaddr = nl_addr_build(family, (void *) ipaddr, addrsize);
9875 if (nl_ipaddr == NULL) {
9876 wpa_printf(MSG_DEBUG, "nl80211: nl_ipaddr build failed");
9877 res = -ENOMEM;
9878 goto errout;
9879 }
9880 nl_addr_set_prefixlen(nl_ipaddr, prefixlen);
9881 res = rtnl_neigh_set_dst(rn, nl_ipaddr);
9882 if (res) {
9883 wpa_printf(MSG_DEBUG,
9884 "nl80211: neigh set destination addr failed");
9885 goto errout;
9886 }
9887
9888 /* set the corresponding lladdr for neigh */
9889 nl_lladdr = nl_addr_build(AF_BRIDGE, (u8 *) addr, ETH_ALEN);
9890 if (nl_lladdr == NULL) {
9891 wpa_printf(MSG_DEBUG, "nl80211: neigh set lladdr failed");
9892 res = -ENOMEM;
9893 goto errout;
9894 }
9895 rtnl_neigh_set_lladdr(rn, nl_lladdr);
9896
9897 rtnl_neigh_set_ifindex(rn, bss->br_ifindex);
9898 rtnl_neigh_set_state(rn, NUD_PERMANENT);
9899
9900 res = rtnl_neigh_add(drv->rtnl_sk, rn, NLM_F_CREATE);
9901 if (res) {
9902 wpa_printf(MSG_DEBUG,
9903 "nl80211: Adding bridge ip neigh failed: %s",
9904 strerror(errno));
9905 }
9906 errout:
9907 if (nl_lladdr)
9908 nl_addr_put(nl_lladdr);
9909 if (nl_ipaddr)
9910 nl_addr_put(nl_ipaddr);
9911 if (rn)
9912 rtnl_neigh_put(rn);
9913 return res;
9914 #else /* CONFIG_LIBNL3_ROUTE */
9915 return -1;
9916 #endif /* CONFIG_LIBNL3_ROUTE */
9917 }
9918
9919
9920 static int wpa_driver_br_delete_ip_neigh(void *priv, u8 version,
9921 const u8 *ipaddr)
9922 {
9923 #ifdef CONFIG_LIBNL3_ROUTE
9924 struct i802_bss *bss = priv;
9925 struct wpa_driver_nl80211_data *drv = bss->drv;
9926 struct rtnl_neigh *rn;
9927 struct nl_addr *nl_ipaddr;
9928 int family, addrsize;
9929 int res;
9930
9931 if (!ipaddr)
9932 return -EINVAL;
9933
9934 if (version == 4) {
9935 family = AF_INET;
9936 addrsize = 4;
9937 } else if (version == 6) {
9938 family = AF_INET6;
9939 addrsize = 16;
9940 } else {
9941 return -EINVAL;
9942 }
9943
9944 if (bss->br_ifindex == 0) {
9945 wpa_printf(MSG_DEBUG,
9946 "nl80211: bridge must be set to delete an ip neigh");
9947 return -1;
9948 }
9949
9950 if (!drv->rtnl_sk) {
9951 wpa_printf(MSG_DEBUG,
9952 "nl80211: nl_sock for NETLINK_ROUTE is not initialized");
9953 return -1;
9954 }
9955
9956 rn = rtnl_neigh_alloc();
9957 if (rn == NULL)
9958 return -ENOMEM;
9959
9960 /* set the destination ip address for neigh */
9961 nl_ipaddr = nl_addr_build(family, (void *) ipaddr, addrsize);
9962 if (nl_ipaddr == NULL) {
9963 wpa_printf(MSG_DEBUG, "nl80211: nl_ipaddr build failed");
9964 res = -ENOMEM;
9965 goto errout;
9966 }
9967 res = rtnl_neigh_set_dst(rn, nl_ipaddr);
9968 if (res) {
9969 wpa_printf(MSG_DEBUG,
9970 "nl80211: neigh set destination addr failed");
9971 goto errout;
9972 }
9973
9974 rtnl_neigh_set_ifindex(rn, bss->br_ifindex);
9975
9976 res = rtnl_neigh_delete(drv->rtnl_sk, rn, 0);
9977 if (res) {
9978 wpa_printf(MSG_DEBUG,
9979 "nl80211: Deleting bridge ip neigh failed: %s",
9980 strerror(errno));
9981 }
9982 errout:
9983 if (nl_ipaddr)
9984 nl_addr_put(nl_ipaddr);
9985 if (rn)
9986 rtnl_neigh_put(rn);
9987 return res;
9988 #else /* CONFIG_LIBNL3_ROUTE */
9989 return -1;
9990 #endif /* CONFIG_LIBNL3_ROUTE */
9991 }
9992
9993
9994 static int linux_write_system_file(const char *path, unsigned int val)
9995 {
9996 char buf[50];
9997 int fd, len;
9998
9999 len = os_snprintf(buf, sizeof(buf), "%u\n", val);
10000 if (os_snprintf_error(sizeof(buf), len))
10001 return -1;
10002
10003 fd = open(path, O_WRONLY);
10004 if (fd < 0)
10005 return -1;
10006
10007 if (write(fd, buf, len) < 0) {
10008 wpa_printf(MSG_DEBUG,
10009 "nl80211: Failed to write Linux system file: %s with the value of %d",
10010 path, val);
10011 close(fd);
10012 return -1;
10013 }
10014 close(fd);
10015
10016 return 0;
10017 }
10018
10019
10020 static const char * drv_br_port_attr_str(enum drv_br_port_attr attr)
10021 {
10022 switch (attr) {
10023 case DRV_BR_PORT_ATTR_PROXYARP:
10024 return "proxyarp_wifi";
10025 case DRV_BR_PORT_ATTR_HAIRPIN_MODE:
10026 return "hairpin_mode";
10027 }
10028
10029 return NULL;
10030 }
10031
10032
10033 static int wpa_driver_br_port_set_attr(void *priv, enum drv_br_port_attr attr,
10034 unsigned int val)
10035 {
10036 struct i802_bss *bss = priv;
10037 char path[128];
10038 const char *attr_txt;
10039
10040 attr_txt = drv_br_port_attr_str(attr);
10041 if (attr_txt == NULL)
10042 return -EINVAL;
10043
10044 os_snprintf(path, sizeof(path), "/sys/class/net/%s/brport/%s",
10045 bss->ifname, attr_txt);
10046
10047 if (linux_write_system_file(path, val))
10048 return -1;
10049
10050 return 0;
10051 }
10052
10053
10054 static const char * drv_br_net_param_str(enum drv_br_net_param param)
10055 {
10056 switch (param) {
10057 case DRV_BR_NET_PARAM_GARP_ACCEPT:
10058 return "arp_accept";
10059 default:
10060 return NULL;
10061 }
10062 }
10063
10064
10065 static int wpa_driver_br_set_net_param(void *priv, enum drv_br_net_param param,
10066 unsigned int val)
10067 {
10068 struct i802_bss *bss = priv;
10069 char path[128];
10070 const char *param_txt;
10071 int ip_version = 4;
10072
10073 if (param == DRV_BR_MULTICAST_SNOOPING) {
10074 os_snprintf(path, sizeof(path),
10075 "/sys/devices/virtual/net/%s/bridge/multicast_snooping",
10076 bss->brname);
10077 goto set_val;
10078 }
10079
10080 param_txt = drv_br_net_param_str(param);
10081 if (param_txt == NULL)
10082 return -EINVAL;
10083
10084 switch (param) {
10085 case DRV_BR_NET_PARAM_GARP_ACCEPT:
10086 ip_version = 4;
10087 break;
10088 default:
10089 return -EINVAL;
10090 }
10091
10092 os_snprintf(path, sizeof(path), "/proc/sys/net/ipv%d/conf/%s/%s",
10093 ip_version, bss->brname, param_txt);
10094
10095 set_val:
10096 if (linux_write_system_file(path, val))
10097 return -1;
10098
10099 return 0;
10100 }
10101
10102
10103 #ifdef CONFIG_DRIVER_NL80211_QCA
10104
10105 static int hw_mode_to_qca_acs(enum hostapd_hw_mode hw_mode)
10106 {
10107 switch (hw_mode) {
10108 case HOSTAPD_MODE_IEEE80211B:
10109 return QCA_ACS_MODE_IEEE80211B;
10110 case HOSTAPD_MODE_IEEE80211G:
10111 return QCA_ACS_MODE_IEEE80211G;
10112 case HOSTAPD_MODE_IEEE80211A:
10113 return QCA_ACS_MODE_IEEE80211A;
10114 case HOSTAPD_MODE_IEEE80211AD:
10115 return QCA_ACS_MODE_IEEE80211AD;
10116 case HOSTAPD_MODE_IEEE80211ANY:
10117 return QCA_ACS_MODE_IEEE80211ANY;
10118 default:
10119 return -1;
10120 }
10121 }
10122
10123
10124 static int add_acs_freq_list(struct nl_msg *msg, const int *freq_list)
10125 {
10126 int i, len, ret;
10127 u32 *freqs;
10128
10129 if (!freq_list)
10130 return 0;
10131 len = int_array_len(freq_list);
10132 freqs = os_malloc(sizeof(u32) * len);
10133 if (!freqs)
10134 return -1;
10135 for (i = 0; i < len; i++)
10136 freqs[i] = freq_list[i];
10137 ret = nla_put(msg, QCA_WLAN_VENDOR_ATTR_ACS_FREQ_LIST,
10138 sizeof(u32) * len, freqs);
10139 os_free(freqs);
10140 return ret;
10141 }
10142
10143
10144 static int wpa_driver_do_acs(void *priv, struct drv_acs_params *params)
10145 {
10146 struct i802_bss *bss = priv;
10147 struct wpa_driver_nl80211_data *drv = bss->drv;
10148 struct nl_msg *msg;
10149 struct nlattr *data;
10150 int ret;
10151 int mode;
10152
10153 mode = hw_mode_to_qca_acs(params->hw_mode);
10154 if (mode < 0)
10155 return -1;
10156
10157 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
10158 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
10159 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
10160 QCA_NL80211_VENDOR_SUBCMD_DO_ACS) ||
10161 !(data = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) ||
10162 nla_put_u8(msg, QCA_WLAN_VENDOR_ATTR_ACS_HW_MODE, mode) ||
10163 (params->ht_enabled &&
10164 nla_put_flag(msg, QCA_WLAN_VENDOR_ATTR_ACS_HT_ENABLED)) ||
10165 (params->ht40_enabled &&
10166 nla_put_flag(msg, QCA_WLAN_VENDOR_ATTR_ACS_HT40_ENABLED)) ||
10167 (params->vht_enabled &&
10168 nla_put_flag(msg, QCA_WLAN_VENDOR_ATTR_ACS_VHT_ENABLED)) ||
10169 nla_put_u16(msg, QCA_WLAN_VENDOR_ATTR_ACS_CHWIDTH,
10170 params->ch_width) ||
10171 (params->ch_list_len &&
10172 nla_put(msg, QCA_WLAN_VENDOR_ATTR_ACS_CH_LIST, params->ch_list_len,
10173 params->ch_list)) ||
10174 add_acs_freq_list(msg, params->freq_list)) {
10175 nlmsg_free(msg);
10176 return -ENOBUFS;
10177 }
10178 nla_nest_end(msg, data);
10179
10180 wpa_printf(MSG_DEBUG,
10181 "nl80211: ACS Params: HW_MODE: %d HT: %d HT40: %d VHT: %d BW: %d CH_LIST_LEN: %u",
10182 params->hw_mode, params->ht_enabled, params->ht40_enabled,
10183 params->vht_enabled, params->ch_width, params->ch_list_len);
10184
10185 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
10186 if (ret) {
10187 wpa_printf(MSG_DEBUG,
10188 "nl80211: Failed to invoke driver ACS function: %s",
10189 strerror(errno));
10190 }
10191 return ret;
10192 }
10193
10194
10195 static int nl80211_set_band(void *priv, enum set_band band)
10196 {
10197 struct i802_bss *bss = priv;
10198 struct wpa_driver_nl80211_data *drv = bss->drv;
10199 struct nl_msg *msg;
10200 struct nlattr *data;
10201 int ret;
10202 enum qca_set_band qca_band;
10203
10204 if (!drv->setband_vendor_cmd_avail)
10205 return -1;
10206
10207 switch (band) {
10208 case WPA_SETBAND_AUTO:
10209 qca_band = QCA_SETBAND_AUTO;
10210 break;
10211 case WPA_SETBAND_5G:
10212 qca_band = QCA_SETBAND_5G;
10213 break;
10214 case WPA_SETBAND_2G:
10215 qca_band = QCA_SETBAND_2G;
10216 break;
10217 default:
10218 return -1;
10219 }
10220
10221 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
10222 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
10223 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
10224 QCA_NL80211_VENDOR_SUBCMD_SETBAND) ||
10225 !(data = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) ||
10226 nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_SETBAND_VALUE, qca_band)) {
10227 nlmsg_free(msg);
10228 return -ENOBUFS;
10229 }
10230 nla_nest_end(msg, data);
10231
10232 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
10233 if (ret) {
10234 wpa_printf(MSG_DEBUG,
10235 "nl80211: Driver setband function failed: %s",
10236 strerror(errno));
10237 }
10238 return ret;
10239 }
10240
10241
10242 struct nl80211_pcl {
10243 unsigned int num;
10244 unsigned int *freq_list;
10245 };
10246
10247 static int preferred_freq_info_handler(struct nl_msg *msg, void *arg)
10248 {
10249 struct nlattr *tb[NL80211_ATTR_MAX + 1];
10250 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
10251 struct nl80211_pcl *param = arg;
10252 struct nlattr *nl_vend, *attr;
10253 enum qca_iface_type iface_type;
10254 struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_MAX + 1];
10255 unsigned int num, max_num;
10256 u32 *freqs;
10257
10258 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
10259 genlmsg_attrlen(gnlh, 0), NULL);
10260
10261 nl_vend = tb[NL80211_ATTR_VENDOR_DATA];
10262 if (!nl_vend)
10263 return NL_SKIP;
10264
10265 nla_parse(tb_vendor, QCA_WLAN_VENDOR_ATTR_MAX,
10266 nla_data(nl_vend), nla_len(nl_vend), NULL);
10267
10268 attr = tb_vendor[
10269 QCA_WLAN_VENDOR_ATTR_GET_PREFERRED_FREQ_LIST_IFACE_TYPE];
10270 if (!attr) {
10271 wpa_printf(MSG_ERROR, "nl80211: iface_type couldn't be found");
10272 param->num = 0;
10273 return NL_SKIP;
10274 }
10275
10276 iface_type = (enum qca_iface_type) nla_get_u32(attr);
10277 wpa_printf(MSG_DEBUG, "nl80211: Driver returned iface_type=%d",
10278 iface_type);
10279
10280 attr = tb_vendor[QCA_WLAN_VENDOR_ATTR_GET_PREFERRED_FREQ_LIST];
10281 if (!attr) {
10282 wpa_printf(MSG_ERROR,
10283 "nl80211: preferred_freq_list couldn't be found");
10284 param->num = 0;
10285 return NL_SKIP;
10286 }
10287
10288 /*
10289 * param->num has the maximum number of entries for which there
10290 * is room in the freq_list provided by the caller.
10291 */
10292 freqs = nla_data(attr);
10293 max_num = nla_len(attr) / sizeof(u32);
10294 if (max_num > param->num)
10295 max_num = param->num;
10296 for (num = 0; num < max_num; num++)
10297 param->freq_list[num] = freqs[num];
10298 param->num = num;
10299
10300 return NL_SKIP;
10301 }
10302
10303
10304 static int nl80211_get_pref_freq_list(void *priv,
10305 enum wpa_driver_if_type if_type,
10306 unsigned int *num,
10307 unsigned int *freq_list)
10308 {
10309 struct i802_bss *bss = priv;
10310 struct wpa_driver_nl80211_data *drv = bss->drv;
10311 struct nl_msg *msg;
10312 int ret;
10313 unsigned int i;
10314 struct nlattr *params;
10315 struct nl80211_pcl param;
10316 enum qca_iface_type iface_type;
10317
10318 if (!drv->get_pref_freq_list)
10319 return -1;
10320
10321 switch (if_type) {
10322 case WPA_IF_STATION:
10323 iface_type = QCA_IFACE_TYPE_STA;
10324 break;
10325 case WPA_IF_AP_BSS:
10326 iface_type = QCA_IFACE_TYPE_AP;
10327 break;
10328 case WPA_IF_P2P_GO:
10329 iface_type = QCA_IFACE_TYPE_P2P_GO;
10330 break;
10331 case WPA_IF_P2P_CLIENT:
10332 iface_type = QCA_IFACE_TYPE_P2P_CLIENT;
10333 break;
10334 case WPA_IF_IBSS:
10335 iface_type = QCA_IFACE_TYPE_IBSS;
10336 break;
10337 case WPA_IF_TDLS:
10338 iface_type = QCA_IFACE_TYPE_TDLS;
10339 break;
10340 default:
10341 return -1;
10342 }
10343
10344 param.num = *num;
10345 param.freq_list = freq_list;
10346
10347 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
10348 nla_put_u32(msg, NL80211_ATTR_IFINDEX, drv->ifindex) ||
10349 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
10350 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
10351 QCA_NL80211_VENDOR_SUBCMD_GET_PREFERRED_FREQ_LIST) ||
10352 !(params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) ||
10353 nla_put_u32(msg,
10354 QCA_WLAN_VENDOR_ATTR_GET_PREFERRED_FREQ_LIST_IFACE_TYPE,
10355 iface_type)) {
10356 wpa_printf(MSG_ERROR,
10357 "%s: err in adding vendor_cmd and vendor_data",
10358 __func__);
10359 nlmsg_free(msg);
10360 return -1;
10361 }
10362 nla_nest_end(msg, params);
10363
10364 os_memset(freq_list, 0, *num * sizeof(freq_list[0]));
10365 ret = send_and_recv_msgs(drv, msg, preferred_freq_info_handler, &param);
10366 if (ret) {
10367 wpa_printf(MSG_ERROR,
10368 "%s: err in send_and_recv_msgs", __func__);
10369 return ret;
10370 }
10371
10372 *num = param.num;
10373
10374 for (i = 0; i < *num; i++) {
10375 wpa_printf(MSG_DEBUG, "nl80211: preferred_channel_list[%d]=%d",
10376 i, freq_list[i]);
10377 }
10378
10379 return 0;
10380 }
10381
10382
10383 static int nl80211_set_prob_oper_freq(void *priv, unsigned int freq)
10384 {
10385 struct i802_bss *bss = priv;
10386 struct wpa_driver_nl80211_data *drv = bss->drv;
10387 struct nl_msg *msg;
10388 int ret;
10389 struct nlattr *params;
10390
10391 if (!drv->set_prob_oper_freq)
10392 return -1;
10393
10394 wpa_printf(MSG_DEBUG,
10395 "nl80211: Set P2P probable operating freq %u for ifindex %d",
10396 freq, bss->ifindex);
10397
10398 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
10399 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
10400 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
10401 QCA_NL80211_VENDOR_SUBCMD_SET_PROBABLE_OPER_CHANNEL) ||
10402 !(params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) ||
10403 nla_put_u32(msg,
10404 QCA_WLAN_VENDOR_ATTR_PROBABLE_OPER_CHANNEL_IFACE_TYPE,
10405 QCA_IFACE_TYPE_P2P_CLIENT) ||
10406 nla_put_u32(msg,
10407 QCA_WLAN_VENDOR_ATTR_PROBABLE_OPER_CHANNEL_FREQ,
10408 freq)) {
10409 wpa_printf(MSG_ERROR,
10410 "%s: err in adding vendor_cmd and vendor_data",
10411 __func__);
10412 nlmsg_free(msg);
10413 return -1;
10414 }
10415 nla_nest_end(msg, params);
10416
10417 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
10418 msg = NULL;
10419 if (ret) {
10420 wpa_printf(MSG_ERROR, "%s: err in send_and_recv_msgs",
10421 __func__);
10422 return ret;
10423 }
10424 nlmsg_free(msg);
10425 return 0;
10426 }
10427
10428
10429 static int nl80211_p2p_lo_start(void *priv, unsigned int freq,
10430 unsigned int period, unsigned int interval,
10431 unsigned int count, const u8 *device_types,
10432 size_t dev_types_len,
10433 const u8 *ies, size_t ies_len)
10434 {
10435 struct i802_bss *bss = priv;
10436 struct wpa_driver_nl80211_data *drv = bss->drv;
10437 struct nl_msg *msg;
10438 struct nlattr *container;
10439 int ret;
10440
10441 wpa_printf(MSG_DEBUG,
10442 "nl80211: Start P2P Listen offload: freq=%u, period=%u, interval=%u, count=%u",
10443 freq, period, interval, count);
10444
10445 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_P2P_LISTEN_OFFLOAD))
10446 return -1;
10447
10448 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
10449 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
10450 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
10451 QCA_NL80211_VENDOR_SUBCMD_P2P_LISTEN_OFFLOAD_START))
10452 goto fail;
10453
10454 container = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
10455 if (!container)
10456 goto fail;
10457
10458 if (nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_CHANNEL,
10459 freq) ||
10460 nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_PERIOD,
10461 period) ||
10462 nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_INTERVAL,
10463 interval) ||
10464 nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_COUNT,
10465 count) ||
10466 nla_put(msg, QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_DEVICE_TYPES,
10467 dev_types_len, device_types) ||
10468 nla_put(msg, QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_VENDOR_IE,
10469 ies_len, ies))
10470 goto fail;
10471
10472 nla_nest_end(msg, container);
10473 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
10474 msg = NULL;
10475 if (ret) {
10476 wpa_printf(MSG_DEBUG,
10477 "nl80211: Failed to send P2P Listen offload vendor command");
10478 goto fail;
10479 }
10480
10481 return 0;
10482
10483 fail:
10484 nlmsg_free(msg);
10485 return -1;
10486 }
10487
10488
10489 static int nl80211_p2p_lo_stop(void *priv)
10490 {
10491 struct i802_bss *bss = priv;
10492 struct wpa_driver_nl80211_data *drv = bss->drv;
10493 struct nl_msg *msg;
10494
10495 wpa_printf(MSG_DEBUG, "nl80211: Stop P2P Listen offload");
10496
10497 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_P2P_LISTEN_OFFLOAD))
10498 return -1;
10499
10500 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
10501 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
10502 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
10503 QCA_NL80211_VENDOR_SUBCMD_P2P_LISTEN_OFFLOAD_STOP)) {
10504 nlmsg_free(msg);
10505 return -1;
10506 }
10507
10508 return send_and_recv_msgs(drv, msg, NULL, NULL);
10509 }
10510
10511
10512 static int nl80211_set_tdls_mode(void *priv, int tdls_external_control)
10513 {
10514 struct i802_bss *bss = priv;
10515 struct wpa_driver_nl80211_data *drv = bss->drv;
10516 struct nl_msg *msg;
10517 struct nlattr *params;
10518 int ret;
10519 u32 tdls_mode;
10520
10521 wpa_printf(MSG_DEBUG,
10522 "nl80211: Set TDKS mode: tdls_external_control=%d",
10523 tdls_external_control);
10524
10525 if (tdls_external_control == 1)
10526 tdls_mode = QCA_WLAN_VENDOR_TDLS_TRIGGER_MODE_IMPLICIT |
10527 QCA_WLAN_VENDOR_TDLS_TRIGGER_MODE_EXTERNAL;
10528 else
10529 tdls_mode = QCA_WLAN_VENDOR_TDLS_TRIGGER_MODE_EXPLICIT;
10530
10531 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
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_CONFIGURE_TDLS))
10535 goto fail;
10536
10537 params = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
10538 if (!params)
10539 goto fail;
10540
10541 if (nla_put_u32(msg, QCA_WLAN_VENDOR_ATTR_TDLS_CONFIG_TRIGGER_MODE,
10542 tdls_mode))
10543 goto fail;
10544
10545 nla_nest_end(msg, params);
10546
10547 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
10548 msg = NULL;
10549 if (ret) {
10550 wpa_printf(MSG_ERROR,
10551 "nl80211: Set TDLS mode failed: ret=%d (%s)",
10552 ret, strerror(-ret));
10553 goto fail;
10554 }
10555 return 0;
10556 fail:
10557 nlmsg_free(msg);
10558 return -1;
10559 }
10560
10561
10562 #ifdef CONFIG_MBO
10563
10564 static enum mbo_transition_reject_reason
10565 nl80211_mbo_reject_reason_mapping(enum qca_wlan_btm_candidate_status status)
10566 {
10567 switch (status) {
10568 case QCA_STATUS_REJECT_EXCESSIVE_FRAME_LOSS_EXPECTED:
10569 return MBO_TRANSITION_REJECT_REASON_FRAME_LOSS;
10570 case QCA_STATUS_REJECT_EXCESSIVE_DELAY_EXPECTED:
10571 return MBO_TRANSITION_REJECT_REASON_DELAY;
10572 case QCA_STATUS_REJECT_INSUFFICIENT_QOS_CAPACITY:
10573 return MBO_TRANSITION_REJECT_REASON_QOS_CAPACITY;
10574 case QCA_STATUS_REJECT_LOW_RSSI:
10575 return MBO_TRANSITION_REJECT_REASON_RSSI;
10576 case QCA_STATUS_REJECT_HIGH_INTERFERENCE:
10577 return MBO_TRANSITION_REJECT_REASON_INTERFERENCE;
10578 case QCA_STATUS_REJECT_UNKNOWN:
10579 default:
10580 return MBO_TRANSITION_REJECT_REASON_UNSPECIFIED;
10581 }
10582 }
10583
10584
10585 static void nl80211_parse_btm_candidate_info(struct candidate_list *candidate,
10586 struct nlattr *tb[], int num)
10587 {
10588 enum qca_wlan_btm_candidate_status status;
10589 char buf[50];
10590
10591 os_memcpy(candidate->bssid,
10592 nla_data(tb[QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO_BSSID]),
10593 ETH_ALEN);
10594
10595 status = nla_get_u32(
10596 tb[QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO_STATUS]);
10597 candidate->is_accept = status == QCA_STATUS_ACCEPT;
10598 candidate->reject_reason = nl80211_mbo_reject_reason_mapping(status);
10599
10600 if (candidate->is_accept)
10601 os_snprintf(buf, sizeof(buf), "Accepted");
10602 else
10603 os_snprintf(buf, sizeof(buf),
10604 "Rejected, Reject_reason: %d",
10605 candidate->reject_reason);
10606 wpa_printf(MSG_DEBUG, "nl80211: BSSID[%d]: " MACSTR " %s",
10607 num, MAC2STR(candidate->bssid), buf);
10608 }
10609
10610
10611 static int
10612 nl80211_get_bss_transition_status_handler(struct nl_msg *msg, void *arg)
10613 {
10614 struct wpa_bss_candidate_info *info = arg;
10615 struct candidate_list *candidate = info->candidates;
10616 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
10617 struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_MAX + 1];
10618 struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO_MAX + 1];
10619 static struct nla_policy policy[
10620 QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO_MAX + 1] = {
10621 [QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO_BSSID] = {
10622 .minlen = ETH_ALEN
10623 },
10624 [QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO_STATUS] = {
10625 .type = NLA_U32,
10626 },
10627 };
10628 struct nlattr *attr;
10629 int rem;
10630 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
10631 u8 num;
10632
10633 num = info->num; /* number of candidates sent to driver */
10634 info->num = 0;
10635 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
10636 genlmsg_attrlen(gnlh, 0), NULL);
10637
10638 if (!tb_msg[NL80211_ATTR_VENDOR_DATA] ||
10639 nla_parse_nested(tb_vendor, QCA_WLAN_VENDOR_ATTR_MAX,
10640 tb_msg[NL80211_ATTR_VENDOR_DATA], NULL) ||
10641 !tb_vendor[QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO])
10642 return NL_SKIP;
10643
10644 wpa_printf(MSG_DEBUG,
10645 "nl80211: WNM Candidate list received from driver");
10646 nla_for_each_nested(attr,
10647 tb_vendor[QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO],
10648 rem) {
10649 if (info->num >= num ||
10650 nla_parse_nested(
10651 tb, QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO_MAX,
10652 attr, policy) ||
10653 !tb[QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO_BSSID] ||
10654 !tb[QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO_STATUS])
10655 break;
10656
10657 nl80211_parse_btm_candidate_info(candidate, tb, info->num);
10658
10659 candidate++;
10660 info->num++;
10661 }
10662
10663 return NL_SKIP;
10664 }
10665
10666
10667 static struct wpa_bss_candidate_info *
10668 nl80211_get_bss_transition_status(void *priv, struct wpa_bss_trans_info *params)
10669 {
10670 struct i802_bss *bss = priv;
10671 struct wpa_driver_nl80211_data *drv = bss->drv;
10672 struct nl_msg *msg;
10673 struct nlattr *attr, *attr1, *attr2;
10674 struct wpa_bss_candidate_info *info;
10675 u8 i;
10676 int ret;
10677 u8 *pos;
10678
10679 if (!drv->fetch_bss_trans_status)
10680 return NULL;
10681
10682 info = os_zalloc(sizeof(*info));
10683 if (!info)
10684 return NULL;
10685 /* Allocate memory for number of candidates sent to driver */
10686 info->candidates = os_calloc(params->n_candidates,
10687 sizeof(*info->candidates));
10688 if (!info->candidates) {
10689 os_free(info);
10690 return NULL;
10691 }
10692
10693 /* Copy the number of candidates being sent to driver. This is used in
10694 * nl80211_get_bss_transition_status_handler() to limit the number of
10695 * candidates that can be populated in info->candidates and will be
10696 * later overwritten with the actual number of candidates received from
10697 * the driver.
10698 */
10699 info->num = params->n_candidates;
10700
10701 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
10702 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
10703 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
10704 QCA_NL80211_VENDOR_SUBCMD_FETCH_BSS_TRANSITION_STATUS))
10705 goto fail;
10706
10707 attr = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
10708 if (!attr)
10709 goto fail;
10710
10711 if (nla_put_u8(msg, QCA_WLAN_VENDOR_ATTR_BTM_MBO_TRANSITION_REASON,
10712 params->mbo_transition_reason))
10713 goto fail;
10714
10715 attr1 = nla_nest_start(msg, QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO);
10716 if (!attr1)
10717 goto fail;
10718
10719 wpa_printf(MSG_DEBUG,
10720 "nl80211: WNM Candidate list info sending to driver: mbo_transition_reason: %d n_candidates: %d",
10721 params->mbo_transition_reason, params->n_candidates);
10722 pos = params->bssid;
10723 for (i = 0; i < params->n_candidates; i++) {
10724 wpa_printf(MSG_DEBUG, "nl80211: BSSID[%d]: " MACSTR, i,
10725 MAC2STR(pos));
10726 attr2 = nla_nest_start(msg, i);
10727 if (!attr2 ||
10728 nla_put(msg, QCA_WLAN_VENDOR_ATTR_BTM_CANDIDATE_INFO_BSSID,
10729 ETH_ALEN, pos))
10730 goto fail;
10731 pos += ETH_ALEN;
10732 nla_nest_end(msg, attr2);
10733 }
10734
10735 nla_nest_end(msg, attr1);
10736 nla_nest_end(msg, attr);
10737
10738 ret = send_and_recv_msgs(drv, msg,
10739 nl80211_get_bss_transition_status_handler,
10740 info);
10741 msg = NULL;
10742 if (ret) {
10743 wpa_printf(MSG_ERROR,
10744 "nl80211: WNM Get BSS transition status failed: ret=%d (%s)",
10745 ret, strerror(-ret));
10746 goto fail;
10747 }
10748 return info;
10749
10750 fail:
10751 nlmsg_free(msg);
10752 os_free(info->candidates);
10753 os_free(info);
10754 return NULL;
10755 }
10756
10757
10758 /**
10759 * nl80211_ignore_assoc_disallow - Configure driver to ignore assoc_disallow
10760 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
10761 * @ignore_assoc_disallow: 0 to not ignore, 1 to ignore
10762 * Returns: 0 on success, -1 on failure
10763 */
10764 static int nl80211_ignore_assoc_disallow(void *priv, int ignore_disallow)
10765 {
10766 struct i802_bss *bss = priv;
10767 struct wpa_driver_nl80211_data *drv = bss->drv;
10768 struct nl_msg *msg;
10769 struct nlattr *attr;
10770 int ret = -1;
10771
10772 if (!drv->set_wifi_conf_vendor_cmd_avail)
10773 return -1;
10774
10775 if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
10776 nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_QCA) ||
10777 nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
10778 QCA_NL80211_VENDOR_SUBCMD_SET_WIFI_CONFIGURATION))
10779 goto fail;
10780
10781 attr = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
10782 if (!attr)
10783 goto fail;
10784
10785 wpa_printf(MSG_DEBUG, "nl80211: Set ignore_assoc_disallow %d",
10786 ignore_disallow);
10787 if (nla_put_u8(msg, QCA_WLAN_VENDOR_ATTR_CONFIG_IGNORE_ASSOC_DISALLOWED,
10788 ignore_disallow))
10789 goto fail;
10790
10791 nla_nest_end(msg, attr);
10792
10793 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
10794 msg = NULL;
10795 if (ret) {
10796 wpa_printf(MSG_ERROR,
10797 "nl80211: Set ignore_assoc_disallow failed: ret=%d (%s)",
10798 ret, strerror(-ret));
10799 goto fail;
10800 }
10801
10802 fail:
10803 nlmsg_free(msg);
10804 return ret;
10805 }
10806
10807 #endif /* CONFIG_MBO */
10808
10809 #endif /* CONFIG_DRIVER_NL80211_QCA */
10810
10811
10812 static int nl80211_write_to_file(const char *name, unsigned int val)
10813 {
10814 int fd, len;
10815 char tmp[128];
10816 int ret = 0;
10817
10818 fd = open(name, O_RDWR);
10819 if (fd < 0) {
10820 int level;
10821 /*
10822 * Flags may not exist on older kernels, or while we're tearing
10823 * down a disappearing device.
10824 */
10825 if (errno == ENOENT) {
10826 ret = 0;
10827 level = MSG_DEBUG;
10828 } else {
10829 ret = -1;
10830 level = MSG_ERROR;
10831 }
10832 wpa_printf(level, "nl80211: Failed to open %s: %s",
10833 name, strerror(errno));
10834 return ret;
10835 }
10836
10837 len = os_snprintf(tmp, sizeof(tmp), "%u\n", val);
10838 len = write(fd, tmp, len);
10839 if (len < 0) {
10840 ret = -1;
10841 wpa_printf(MSG_ERROR, "nl80211: Failed to write to %s: %s",
10842 name, strerror(errno));
10843 }
10844 close(fd);
10845
10846 return ret;
10847 }
10848
10849
10850 static int nl80211_configure_data_frame_filters(void *priv, u32 filter_flags)
10851 {
10852 struct i802_bss *bss = priv;
10853 char path[128];
10854 int ret;
10855
10856 wpa_printf(MSG_DEBUG, "nl80211: Data frame filter flags=0x%x",
10857 filter_flags);
10858
10859 /* Configure filtering of unicast frame encrypted using GTK */
10860 ret = os_snprintf(path, sizeof(path),
10861 "/proc/sys/net/ipv4/conf/%s/drop_unicast_in_l2_multicast",
10862 bss->ifname);
10863 if (os_snprintf_error(sizeof(path), ret))
10864 return -1;
10865
10866 ret = nl80211_write_to_file(path,
10867 !!(filter_flags &
10868 WPA_DATA_FRAME_FILTER_FLAG_GTK));
10869 if (ret) {
10870 wpa_printf(MSG_ERROR,
10871 "nl80211: Failed to set IPv4 unicast in multicast filter");
10872 return ret;
10873 }
10874
10875 os_snprintf(path, sizeof(path),
10876 "/proc/sys/net/ipv6/conf/%s/drop_unicast_in_l2_multicast",
10877 bss->ifname);
10878 ret = nl80211_write_to_file(path,
10879 !!(filter_flags &
10880 WPA_DATA_FRAME_FILTER_FLAG_GTK));
10881
10882 if (ret) {
10883 wpa_printf(MSG_ERROR,
10884 "nl80211: Failed to set IPv6 unicast in multicast filter");
10885 return ret;
10886 }
10887
10888 /* Configure filtering of unicast frame encrypted using GTK */
10889 os_snprintf(path, sizeof(path),
10890 "/proc/sys/net/ipv4/conf/%s/drop_gratuitous_arp",
10891 bss->ifname);
10892 ret = nl80211_write_to_file(path,
10893 !!(filter_flags &
10894 WPA_DATA_FRAME_FILTER_FLAG_ARP));
10895 if (ret) {
10896 wpa_printf(MSG_ERROR,
10897 "nl80211: Failed set gratuitous ARP filter");
10898 return ret;
10899 }
10900
10901 /* Configure filtering of IPv6 NA frames */
10902 os_snprintf(path, sizeof(path),
10903 "/proc/sys/net/ipv6/conf/%s/drop_unsolicited_na",
10904 bss->ifname);
10905 ret = nl80211_write_to_file(path,
10906 !!(filter_flags &
10907 WPA_DATA_FRAME_FILTER_FLAG_NA));
10908 if (ret) {
10909 wpa_printf(MSG_ERROR,
10910 "nl80211: Failed to set unsolicited NA filter");
10911 return ret;
10912 }
10913
10914 return 0;
10915 }
10916
10917
10918 static int nl80211_get_ext_capab(void *priv, enum wpa_driver_if_type type,
10919 const u8 **ext_capa, const u8 **ext_capa_mask,
10920 unsigned int *ext_capa_len)
10921 {
10922 struct i802_bss *bss = priv;
10923 struct wpa_driver_nl80211_data *drv = bss->drv;
10924 enum nl80211_iftype nlmode;
10925 unsigned int i;
10926
10927 if (!ext_capa || !ext_capa_mask || !ext_capa_len)
10928 return -1;
10929
10930 nlmode = wpa_driver_nl80211_if_type(type);
10931
10932 /* By default, use the per-radio values */
10933 *ext_capa = drv->extended_capa;
10934 *ext_capa_mask = drv->extended_capa_mask;
10935 *ext_capa_len = drv->extended_capa_len;
10936
10937 /* Replace the default value if a per-interface type value exists */
10938 for (i = 0; i < drv->num_iface_ext_capa; i++) {
10939 if (nlmode == drv->iface_ext_capa[i].iftype) {
10940 *ext_capa = drv->iface_ext_capa[i].ext_capa;
10941 *ext_capa_mask = drv->iface_ext_capa[i].ext_capa_mask;
10942 *ext_capa_len = drv->iface_ext_capa[i].ext_capa_len;
10943 break;
10944 }
10945 }
10946
10947 return 0;
10948 }
10949
10950
10951 static int nl80211_update_connection_params(
10952 void *priv, struct wpa_driver_associate_params *params,
10953 enum wpa_drv_update_connect_params_mask mask)
10954 {
10955 struct i802_bss *bss = priv;
10956 struct wpa_driver_nl80211_data *drv = bss->drv;
10957 struct nl_msg *msg;
10958 int ret = -1;
10959 enum nl80211_auth_type type;
10960
10961 /* Update Connection Params is intended for drivers that implement
10962 * internal SME and expect these updated connection params from
10963 * wpa_supplicant. Do not send this request for the drivers using
10964 * SME from wpa_supplicant.
10965 */
10966 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME)
10967 return 0;
10968
10969 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_UPDATE_CONNECT_PARAMS);
10970 if (!msg)
10971 goto fail;
10972
10973 wpa_printf(MSG_DEBUG, "nl80211: Update connection params (ifindex=%d)",
10974 drv->ifindex);
10975
10976 if ((mask & WPA_DRV_UPDATE_ASSOC_IES) && params->wpa_ie) {
10977 if (nla_put(msg, NL80211_ATTR_IE, params->wpa_ie_len,
10978 params->wpa_ie))
10979 goto fail;
10980 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie,
10981 params->wpa_ie_len);
10982 }
10983
10984 if (mask & WPA_DRV_UPDATE_AUTH_TYPE) {
10985 type = get_nl_auth_type(params->auth_alg);
10986 if (type == NL80211_AUTHTYPE_MAX ||
10987 nla_put_u32(msg, NL80211_ATTR_AUTH_TYPE, type))
10988 goto fail;
10989 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
10990 }
10991
10992 if ((mask & WPA_DRV_UPDATE_FILS_ERP_INFO) &&
10993 nl80211_put_fils_connect_params(drv, params, msg))
10994 goto fail;
10995
10996 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
10997 msg = NULL;
10998 if (ret)
10999 wpa_dbg(drv->ctx, MSG_DEBUG,
11000 "nl80211: Update connect params command failed: ret=%d (%s)",
11001 ret, strerror(-ret));
11002
11003 fail:
11004 nlmsg_free(msg);
11005 return ret;
11006 }
11007
11008
11009 static int nl80211_send_external_auth_status(void *priv,
11010 struct external_auth *params)
11011 {
11012 struct i802_bss *bss = priv;
11013 struct wpa_driver_nl80211_data *drv = bss->drv;
11014 struct nl_msg *msg = NULL;
11015 int ret = -1;
11016
11017 /* External auth command/status is intended for drivers that implement
11018 * intenral SME but want to offload authentication processing (e.g.,
11019 * SAE) to hostapd/wpa_supplicant. Do nott send the status to drivers
11020 * which do not support AP SME or use wpa_supplicant/hostapd SME.
11021 */
11022 if ((is_ap_interface(drv->nlmode) && !bss->drv->device_ap_sme) ||
11023 (drv->capa.flags & WPA_DRIVER_FLAGS_SME))
11024 return -1;
11025
11026 wpa_dbg(drv->ctx, MSG_DEBUG,
11027 "nl80211: External auth status: %u", params->status);
11028
11029 msg = nl80211_drv_msg(drv, 0, NL80211_CMD_EXTERNAL_AUTH);
11030 if (!msg ||
11031 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, params->status) ||
11032 (params->ssid && params->ssid_len &&
11033 nla_put(msg, NL80211_ATTR_SSID, params->ssid_len, params->ssid)) ||
11034 (params->pmkid &&
11035 nla_put(msg, NL80211_ATTR_PMKID, PMKID_LEN, params->pmkid)) ||
11036 (params->bssid &&
11037 nla_put(msg, NL80211_ATTR_BSSID, ETH_ALEN, params->bssid)))
11038 goto fail;
11039 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
11040 msg = NULL;
11041 if (ret) {
11042 wpa_printf(MSG_DEBUG,
11043 "nl80211: External Auth status update failed: ret=%d (%s)",
11044 ret, strerror(-ret));
11045 goto fail;
11046 }
11047 fail:
11048 nlmsg_free(msg);
11049 return ret;
11050 }
11051
11052
11053 static int nl80211_set_4addr_mode(void *priv, const char *bridge_ifname,
11054 int val)
11055 {
11056 struct i802_bss *bss = priv;
11057 struct wpa_driver_nl80211_data *drv = bss->drv;
11058 struct nl_msg *msg;
11059 int ret = -ENOBUFS;
11060
11061 wpa_printf(MSG_DEBUG, "nl80211: %s 4addr mode (bridge_ifname: %s)",
11062 val ? "Enable" : "Disable", bridge_ifname);
11063
11064 msg = nl80211_cmd_msg(drv->first_bss, 0, NL80211_CMD_SET_INTERFACE);
11065 if (!msg || nla_put_u8(msg, NL80211_ATTR_4ADDR, val))
11066 goto fail;
11067
11068 if (bridge_ifname[0] && bss->added_if_into_bridge && !val) {
11069 if (linux_br_del_if(drv->global->ioctl_sock,
11070 bridge_ifname, bss->ifname)) {
11071 wpa_printf(MSG_ERROR,
11072 "nl80211: Failed to remove interface %s from bridge %s",
11073 bss->ifname, bridge_ifname);
11074 return -1;
11075 }
11076 bss->added_if_into_bridge = 0;
11077 }
11078
11079 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
11080 msg = NULL;
11081 if (!ret) {
11082 if (bridge_ifname[0] && val &&
11083 i802_check_bridge(drv, bss, bridge_ifname, bss->ifname) < 0)
11084 return -1;
11085 return 0;
11086 }
11087
11088 fail:
11089 nlmsg_free(msg);
11090 wpa_printf(MSG_ERROR, "nl80211: Failed to enable/disable 4addr");
11091
11092 return ret;
11093 }
11094
11095
11096 const struct wpa_driver_ops wpa_driver_nl80211_ops = {
11097 .name = "nl80211",
11098 .desc = "Linux nl80211/cfg80211",
11099 .get_bssid = wpa_driver_nl80211_get_bssid,
11100 .get_ssid = wpa_driver_nl80211_get_ssid,
11101 .set_key = driver_nl80211_set_key,
11102 .scan2 = driver_nl80211_scan2,
11103 .sched_scan = wpa_driver_nl80211_sched_scan,
11104 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan,
11105 .get_scan_results2 = wpa_driver_nl80211_get_scan_results,
11106 .abort_scan = wpa_driver_nl80211_abort_scan,
11107 .deauthenticate = driver_nl80211_deauthenticate,
11108 .authenticate = driver_nl80211_authenticate,
11109 .associate = wpa_driver_nl80211_associate,
11110 .global_init = nl80211_global_init,
11111 .global_deinit = nl80211_global_deinit,
11112 .init2 = wpa_driver_nl80211_init,
11113 .deinit = driver_nl80211_deinit,
11114 .get_capa = wpa_driver_nl80211_get_capa,
11115 .set_operstate = wpa_driver_nl80211_set_operstate,
11116 .set_supp_port = wpa_driver_nl80211_set_supp_port,
11117 .set_country = wpa_driver_nl80211_set_country,
11118 .get_country = wpa_driver_nl80211_get_country,
11119 .set_ap = wpa_driver_nl80211_set_ap,
11120 .set_acl = wpa_driver_nl80211_set_acl,
11121 .if_add = wpa_driver_nl80211_if_add,
11122 .if_remove = driver_nl80211_if_remove,
11123 .send_mlme = driver_nl80211_send_mlme,
11124 .get_hw_feature_data = nl80211_get_hw_feature_data,
11125 .sta_add = wpa_driver_nl80211_sta_add,
11126 .sta_remove = driver_nl80211_sta_remove,
11127 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol,
11128 .sta_set_flags = wpa_driver_nl80211_sta_set_flags,
11129 .sta_set_airtime_weight = driver_nl80211_sta_set_airtime_weight,
11130 .hapd_init = i802_init,
11131 .hapd_deinit = i802_deinit,
11132 .set_wds_sta = i802_set_wds_sta,
11133 .get_seqnum = i802_get_seqnum,
11134 .flush = i802_flush,
11135 .get_inact_sec = i802_get_inact_sec,
11136 .sta_clear_stats = i802_sta_clear_stats,
11137 .set_rts = i802_set_rts,
11138 .set_frag = i802_set_frag,
11139 .set_tx_queue_params = i802_set_tx_queue_params,
11140 .set_sta_vlan = driver_nl80211_set_sta_vlan,
11141 .sta_deauth = i802_sta_deauth,
11142 .sta_disassoc = i802_sta_disassoc,
11143 .read_sta_data = driver_nl80211_read_sta_data,
11144 .set_freq = i802_set_freq,
11145 .send_action = driver_nl80211_send_action,
11146 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait,
11147 .remain_on_channel = wpa_driver_nl80211_remain_on_channel,
11148 .cancel_remain_on_channel =
11149 wpa_driver_nl80211_cancel_remain_on_channel,
11150 .probe_req_report = driver_nl80211_probe_req_report,
11151 .deinit_ap = wpa_driver_nl80211_deinit_ap,
11152 .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli,
11153 .resume = wpa_driver_nl80211_resume,
11154 .signal_monitor = nl80211_signal_monitor,
11155 .signal_poll = nl80211_signal_poll,
11156 .channel_info = nl80211_channel_info,
11157 .send_frame = nl80211_send_frame,
11158 .set_param = nl80211_set_param,
11159 .get_radio_name = nl80211_get_radio_name,
11160 .add_pmkid = nl80211_add_pmkid,
11161 .remove_pmkid = nl80211_remove_pmkid,
11162 .flush_pmkid = nl80211_flush_pmkid,
11163 .set_rekey_info = nl80211_set_rekey_info,
11164 .poll_client = nl80211_poll_client,
11165 .set_p2p_powersave = nl80211_set_p2p_powersave,
11166 .start_dfs_cac = nl80211_start_radar_detection,
11167 .stop_ap = wpa_driver_nl80211_stop_ap,
11168 #ifdef CONFIG_TDLS
11169 .send_tdls_mgmt = nl80211_send_tdls_mgmt,
11170 .tdls_oper = nl80211_tdls_oper,
11171 .tdls_enable_channel_switch = nl80211_tdls_enable_channel_switch,
11172 .tdls_disable_channel_switch = nl80211_tdls_disable_channel_switch,
11173 #endif /* CONFIG_TDLS */
11174 .update_ft_ies = wpa_driver_nl80211_update_ft_ies,
11175 .update_dh_ie = nl80211_update_dh_ie,
11176 .get_mac_addr = wpa_driver_nl80211_get_macaddr,
11177 .get_survey = wpa_driver_nl80211_get_survey,
11178 .status = wpa_driver_nl80211_status,
11179 .switch_channel = nl80211_switch_channel,
11180 #ifdef ANDROID_P2P
11181 .set_noa = wpa_driver_set_p2p_noa,
11182 .get_noa = wpa_driver_get_p2p_noa,
11183 .set_ap_wps_ie = wpa_driver_set_ap_wps_p2p_ie,
11184 #endif /* ANDROID_P2P */
11185 #ifdef ANDROID
11186 #ifndef ANDROID_LIB_STUB
11187 .driver_cmd = wpa_driver_nl80211_driver_cmd,
11188 #endif /* !ANDROID_LIB_STUB */
11189 #endif /* ANDROID */
11190 .vendor_cmd = nl80211_vendor_cmd,
11191 .set_qos_map = nl80211_set_qos_map,
11192 .set_wowlan = nl80211_set_wowlan,
11193 .set_mac_addr = nl80211_set_mac_addr,
11194 #ifdef CONFIG_MESH
11195 .init_mesh = wpa_driver_nl80211_init_mesh,
11196 .join_mesh = wpa_driver_nl80211_join_mesh,
11197 .leave_mesh = wpa_driver_nl80211_leave_mesh,
11198 .probe_mesh_link = nl80211_probe_mesh_link,
11199 #endif /* CONFIG_MESH */
11200 .br_add_ip_neigh = wpa_driver_br_add_ip_neigh,
11201 .br_delete_ip_neigh = wpa_driver_br_delete_ip_neigh,
11202 .br_port_set_attr = wpa_driver_br_port_set_attr,
11203 .br_set_net_param = wpa_driver_br_set_net_param,
11204 .add_tx_ts = nl80211_add_ts,
11205 .del_tx_ts = nl80211_del_ts,
11206 .get_ifindex = nl80211_get_ifindex,
11207 #ifdef CONFIG_DRIVER_NL80211_QCA
11208 .roaming = nl80211_roaming,
11209 .disable_fils = nl80211_disable_fils,
11210 .do_acs = wpa_driver_do_acs,
11211 .set_band = nl80211_set_band,
11212 .get_pref_freq_list = nl80211_get_pref_freq_list,
11213 .set_prob_oper_freq = nl80211_set_prob_oper_freq,
11214 .p2p_lo_start = nl80211_p2p_lo_start,
11215 .p2p_lo_stop = nl80211_p2p_lo_stop,
11216 .set_default_scan_ies = nl80211_set_default_scan_ies,
11217 .set_tdls_mode = nl80211_set_tdls_mode,
11218 #ifdef CONFIG_MBO
11219 .get_bss_transition_status = nl80211_get_bss_transition_status,
11220 .ignore_assoc_disallow = nl80211_ignore_assoc_disallow,
11221 #endif /* CONFIG_MBO */
11222 .set_bssid_blacklist = nl80211_set_bssid_blacklist,
11223 #endif /* CONFIG_DRIVER_NL80211_QCA */
11224 .configure_data_frame_filters = nl80211_configure_data_frame_filters,
11225 .get_ext_capab = nl80211_get_ext_capab,
11226 .update_connect_params = nl80211_update_connection_params,
11227 .send_external_auth_status = nl80211_send_external_auth_status,
11228 .set_4addr_mode = nl80211_set_4addr_mode,
11229 };
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