1 /*
2 * Driver interaction with Linux nl80211/cfg80211
3 * Copyright (c) 2002-2012, Jouni Malinen <j@w1.fi>
4 * Copyright (c) 2003-2004, Instant802 Networks, Inc.
5 * Copyright (c) 2005-2006, Devicescape Software, Inc.
6 * Copyright (c) 2007, Johannes Berg <johannes@sipsolutions.net>
7 * Copyright (c) 2009-2010, Atheros Communications
8 *
9 * This software may be distributed under the terms of the BSD license.
10 * See README for more details.
11 */
13 #include "includes.h"
14 #include <sys/ioctl.h>
15 #include <sys/types.h>
16 #include <sys/stat.h>
17 #include <fcntl.h>
18 #include <net/if.h>
19 #include <netlink/genl/genl.h>
20 #include <netlink/genl/family.h>
21 #include <netlink/genl/ctrl.h>
22 #include <linux/rtnetlink.h>
23 #include <netpacket/packet.h>
24 #include <linux/filter.h>
25 #include <linux/errqueue.h>
26 #include "nl80211_copy.h"
28 #include "common.h"
29 #include "eloop.h"
30 #include "utils/list.h"
31 #include "common/ieee802_11_defs.h"
32 #include "common/ieee802_11_common.h"
33 #include "l2_packet/l2_packet.h"
34 #include "netlink.h"
35 #include "linux_ioctl.h"
36 #include "radiotap.h"
37 #include "radiotap_iter.h"
38 #include "rfkill.h"
39 #include "driver.h"
41 #ifndef SO_WIFI_STATUS
42 # if defined(__sparc__)
43 # define SO_WIFI_STATUS 0x0025
44 # elif defined(__parisc__)
45 # define SO_WIFI_STATUS 0x4022
46 # else
47 # define SO_WIFI_STATUS 41
48 # endif
50 # define SCM_WIFI_STATUS SO_WIFI_STATUS
51 #endif
53 #ifndef SO_EE_ORIGIN_TXSTATUS
54 #define SO_EE_ORIGIN_TXSTATUS 4
55 #endif
57 #ifndef PACKET_TX_TIMESTAMP
58 #define PACKET_TX_TIMESTAMP 16
59 #endif
61 #ifdef ANDROID
62 #include "android_drv.h"
63 #endif /* ANDROID */
64 #ifdef CONFIG_LIBNL20
65 /* libnl 2.0 compatibility code */
66 #define nl_handle nl_sock
67 #define nl80211_handle_alloc nl_socket_alloc_cb
68 #define nl80211_handle_destroy nl_socket_free
69 #else
70 /*
71 * libnl 1.1 has a bug, it tries to allocate socket numbers densely
72 * but when you free a socket again it will mess up its bitmap and
73 * and use the wrong number the next time it needs a socket ID.
74 * Therefore, we wrap the handle alloc/destroy and add our own pid
75 * accounting.
76 */
77 static uint32_t port_bitmap[32] = { 0 };
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;
85 handle = nl_handle_alloc_cb(cb);
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 }
95 nl_socket_set_local_port(handle, pid);
97 return handle;
98 }
100 static void nl80211_handle_destroy(struct nl_handle *handle)
101 {
102 uint32_t port = nl_socket_get_local_port(handle);
104 port >>= 22;
105 port_bitmap[port / 32] &= ~(1 << (port % 32));
107 nl_handle_destroy(handle);
108 }
109 #endif /* CONFIG_LIBNL20 */
112 static struct nl_handle * nl_create_handle(struct nl_cb *cb, const char *dbg)
113 {
114 struct nl_handle *handle;
116 handle = nl80211_handle_alloc(cb);
117 if (handle == NULL) {
118 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
119 "callbacks (%s)", dbg);
120 return NULL;
121 }
123 if (genl_connect(handle)) {
124 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
125 "netlink (%s)", dbg);
126 nl80211_handle_destroy(handle);
127 return NULL;
128 }
130 return handle;
131 }
134 static void nl_destroy_handles(struct nl_handle **handle)
135 {
136 if (*handle == NULL)
137 return;
138 nl80211_handle_destroy(*handle);
139 *handle = NULL;
140 }
143 #ifndef IFF_LOWER_UP
144 #define IFF_LOWER_UP 0x10000 /* driver signals L1 up */
145 #endif
146 #ifndef IFF_DORMANT
147 #define IFF_DORMANT 0x20000 /* driver signals dormant */
148 #endif
150 #ifndef IF_OPER_DORMANT
151 #define IF_OPER_DORMANT 5
152 #endif
153 #ifndef IF_OPER_UP
154 #define IF_OPER_UP 6
155 #endif
157 struct nl80211_global {
158 struct dl_list interfaces;
159 int if_add_ifindex;
160 struct netlink_data *netlink;
161 struct nl_cb *nl_cb;
162 struct nl_handle *nl;
163 int nl80211_id;
164 int ioctl_sock; /* socket for ioctl() use */
166 struct nl_handle *nl_event;
167 };
169 struct nl80211_wiphy_data {
170 struct dl_list list;
171 struct dl_list bsss;
172 struct dl_list drvs;
174 struct nl_handle *nl_beacons;
175 struct nl_cb *nl_cb;
177 int wiphy_idx;
178 };
180 static void nl80211_global_deinit(void *priv);
181 static void wpa_driver_nl80211_deinit(void *priv);
183 struct i802_bss {
184 struct wpa_driver_nl80211_data *drv;
185 struct i802_bss *next;
186 int ifindex;
187 char ifname[IFNAMSIZ + 1];
188 char brname[IFNAMSIZ];
189 unsigned int beacon_set:1;
190 unsigned int added_if_into_bridge:1;
191 unsigned int added_bridge:1;
193 u8 addr[ETH_ALEN];
195 int freq;
197 struct nl_handle *nl_preq, *nl_mgmt;
198 struct nl_cb *nl_cb;
200 struct nl80211_wiphy_data *wiphy_data;
201 struct dl_list wiphy_list;
202 };
204 struct wpa_driver_nl80211_data {
205 struct nl80211_global *global;
206 struct dl_list list;
207 struct dl_list wiphy_list;
208 char phyname[32];
209 void *ctx;
210 int ifindex;
211 int if_removed;
212 int if_disabled;
213 int ignore_if_down_event;
214 struct rfkill_data *rfkill;
215 struct wpa_driver_capa capa;
216 int has_capability;
218 int operstate;
220 int scan_complete_events;
222 struct nl_cb *nl_cb;
224 u8 auth_bssid[ETH_ALEN];
225 u8 bssid[ETH_ALEN];
226 int associated;
227 u8 ssid[32];
228 size_t ssid_len;
229 enum nl80211_iftype nlmode;
230 enum nl80211_iftype ap_scan_as_station;
231 unsigned int assoc_freq;
233 int monitor_sock;
234 int monitor_ifidx;
235 int monitor_refcount;
237 unsigned int disabled_11b_rates:1;
238 unsigned int pending_remain_on_chan:1;
239 unsigned int in_interface_list:1;
240 unsigned int device_ap_sme:1;
241 unsigned int poll_command_supported:1;
242 unsigned int data_tx_status:1;
243 unsigned int scan_for_auth:1;
244 unsigned int retry_auth:1;
245 unsigned int use_monitor:1;
247 u64 remain_on_chan_cookie;
248 u64 send_action_cookie;
250 unsigned int last_mgmt_freq;
252 struct wpa_driver_scan_filter *filter_ssids;
253 size_t num_filter_ssids;
255 struct i802_bss first_bss;
257 int eapol_tx_sock;
259 #ifdef HOSTAPD
260 int eapol_sock; /* socket for EAPOL frames */
262 int default_if_indices[16];
263 int *if_indices;
264 int num_if_indices;
266 int last_freq;
267 int last_freq_ht;
268 #endif /* HOSTAPD */
270 /* From failed authentication command */
271 int auth_freq;
272 u8 auth_bssid_[ETH_ALEN];
273 u8 auth_ssid[32];
274 size_t auth_ssid_len;
275 int auth_alg;
276 u8 *auth_ie;
277 size_t auth_ie_len;
278 u8 auth_wep_key[4][16];
279 size_t auth_wep_key_len[4];
280 int auth_wep_tx_keyidx;
281 int auth_local_state_change;
282 int auth_p2p;
283 };
286 static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx,
287 void *timeout_ctx);
288 static int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
289 enum nl80211_iftype nlmode);
290 static int
291 wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv);
292 static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
293 const u8 *addr, int cmd, u16 reason_code,
294 int local_state_change);
295 static void nl80211_remove_monitor_interface(
296 struct wpa_driver_nl80211_data *drv);
297 static int nl80211_send_frame_cmd(struct i802_bss *bss,
298 unsigned int freq, unsigned int wait,
299 const u8 *buf, size_t buf_len, u64 *cookie,
300 int no_cck, int no_ack, int offchanok);
301 static int wpa_driver_nl80211_probe_req_report(void *priv, int report);
302 #ifdef ANDROID
303 static int android_pno_start(struct i802_bss *bss,
304 struct wpa_driver_scan_params *params);
305 static int android_pno_stop(struct i802_bss *bss);
306 #endif /* ANDROID */
308 #ifdef HOSTAPD
309 static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
310 static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
311 static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
312 static int wpa_driver_nl80211_if_remove(void *priv,
313 enum wpa_driver_if_type type,
314 const char *ifname);
315 #else /* HOSTAPD */
316 static inline void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
317 {
318 }
320 static inline void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
321 {
322 }
324 static inline int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
325 {
326 return 0;
327 }
328 #endif /* HOSTAPD */
330 static int i802_set_freq(void *priv, struct hostapd_freq_params *freq);
331 static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
332 int ifindex, int disabled);
334 static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv);
335 static int wpa_driver_nl80211_authenticate_retry(
336 struct wpa_driver_nl80211_data *drv);
339 static int is_ap_interface(enum nl80211_iftype nlmode)
340 {
341 return (nlmode == NL80211_IFTYPE_AP ||
342 nlmode == NL80211_IFTYPE_P2P_GO);
343 }
346 static int is_sta_interface(enum nl80211_iftype nlmode)
347 {
348 return (nlmode == NL80211_IFTYPE_STATION ||
349 nlmode == NL80211_IFTYPE_P2P_CLIENT);
350 }
353 static int is_p2p_interface(enum nl80211_iftype nlmode)
354 {
355 return (nlmode == NL80211_IFTYPE_P2P_CLIENT ||
356 nlmode == NL80211_IFTYPE_P2P_GO);
357 }
360 struct nl80211_bss_info_arg {
361 struct wpa_driver_nl80211_data *drv;
362 struct wpa_scan_results *res;
363 unsigned int assoc_freq;
364 u8 assoc_bssid[ETH_ALEN];
365 };
367 static int bss_info_handler(struct nl_msg *msg, void *arg);
370 /* nl80211 code */
371 static int ack_handler(struct nl_msg *msg, void *arg)
372 {
373 int *err = arg;
374 *err = 0;
375 return NL_STOP;
376 }
378 static int finish_handler(struct nl_msg *msg, void *arg)
379 {
380 int *ret = arg;
381 *ret = 0;
382 return NL_SKIP;
383 }
385 static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err,
386 void *arg)
387 {
388 int *ret = arg;
389 *ret = err->error;
390 return NL_SKIP;
391 }
394 static int no_seq_check(struct nl_msg *msg, void *arg)
395 {
396 return NL_OK;
397 }
400 static int send_and_recv(struct nl80211_global *global,
401 struct nl_handle *nl_handle, struct nl_msg *msg,
402 int (*valid_handler)(struct nl_msg *, void *),
403 void *valid_data)
404 {
405 struct nl_cb *cb;
406 int err = -ENOMEM;
408 cb = nl_cb_clone(global->nl_cb);
409 if (!cb)
410 goto out;
412 err = nl_send_auto_complete(nl_handle, msg);
413 if (err < 0)
414 goto out;
416 err = 1;
418 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
419 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
420 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
422 if (valid_handler)
423 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM,
424 valid_handler, valid_data);
426 while (err > 0)
427 nl_recvmsgs(nl_handle, cb);
428 out:
429 nl_cb_put(cb);
430 nlmsg_free(msg);
431 return err;
432 }
435 static int send_and_recv_msgs_global(struct nl80211_global *global,
436 struct nl_msg *msg,
437 int (*valid_handler)(struct nl_msg *, void *),
438 void *valid_data)
439 {
440 return send_and_recv(global, global->nl, msg, valid_handler,
441 valid_data);
442 }
445 static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv,
446 struct nl_msg *msg,
447 int (*valid_handler)(struct nl_msg *, void *),
448 void *valid_data)
449 {
450 return send_and_recv(drv->global, drv->global->nl, msg,
451 valid_handler, valid_data);
452 }
455 struct family_data {
456 const char *group;
457 int id;
458 };
461 static int family_handler(struct nl_msg *msg, void *arg)
462 {
463 struct family_data *res = arg;
464 struct nlattr *tb[CTRL_ATTR_MAX + 1];
465 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
466 struct nlattr *mcgrp;
467 int i;
469 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
470 genlmsg_attrlen(gnlh, 0), NULL);
471 if (!tb[CTRL_ATTR_MCAST_GROUPS])
472 return NL_SKIP;
474 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) {
475 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1];
476 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp),
477 nla_len(mcgrp), NULL);
478 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] ||
479 !tb2[CTRL_ATTR_MCAST_GRP_ID] ||
480 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]),
481 res->group,
482 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0)
483 continue;
484 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]);
485 break;
486 };
488 return NL_SKIP;
489 }
492 static int nl_get_multicast_id(struct nl80211_global *global,
493 const char *family, const char *group)
494 {
495 struct nl_msg *msg;
496 int ret = -1;
497 struct family_data res = { group, -ENOENT };
499 msg = nlmsg_alloc();
500 if (!msg)
501 return -ENOMEM;
502 genlmsg_put(msg, 0, 0, genl_ctrl_resolve(global->nl, "nlctrl"),
503 0, 0, CTRL_CMD_GETFAMILY, 0);
504 NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family);
506 ret = send_and_recv_msgs_global(global, msg, family_handler, &res);
507 msg = NULL;
508 if (ret == 0)
509 ret = res.id;
511 nla_put_failure:
512 nlmsg_free(msg);
513 return ret;
514 }
517 static void * nl80211_cmd(struct wpa_driver_nl80211_data *drv,
518 struct nl_msg *msg, int flags, uint8_t cmd)
519 {
520 return genlmsg_put(msg, 0, 0, drv->global->nl80211_id,
521 0, flags, cmd, 0);
522 }
525 struct wiphy_idx_data {
526 int wiphy_idx;
527 };
530 static int netdev_info_handler(struct nl_msg *msg, void *arg)
531 {
532 struct nlattr *tb[NL80211_ATTR_MAX + 1];
533 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
534 struct wiphy_idx_data *info = arg;
536 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
537 genlmsg_attrlen(gnlh, 0), NULL);
539 if (tb[NL80211_ATTR_WIPHY])
540 info->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
542 return NL_SKIP;
543 }
546 static int nl80211_get_wiphy_index(struct i802_bss *bss)
547 {
548 struct nl_msg *msg;
549 struct wiphy_idx_data data = {
550 .wiphy_idx = -1,
551 };
553 msg = nlmsg_alloc();
554 if (!msg)
555 return -1;
557 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE);
559 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
561 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0)
562 return data.wiphy_idx;
563 msg = NULL;
564 nla_put_failure:
565 nlmsg_free(msg);
566 return -1;
567 }
570 static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv,
571 struct nl80211_wiphy_data *w)
572 {
573 struct nl_msg *msg;
574 int ret = -1;
576 msg = nlmsg_alloc();
577 if (!msg)
578 return -1;
580 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_BEACONS);
582 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, w->wiphy_idx);
584 ret = send_and_recv(drv->global, w->nl_beacons, msg, NULL, NULL);
585 msg = NULL;
586 if (ret) {
587 wpa_printf(MSG_DEBUG, "nl80211: Register beacons command "
588 "failed: ret=%d (%s)",
589 ret, strerror(-ret));
590 goto nla_put_failure;
591 }
592 ret = 0;
593 nla_put_failure:
594 nlmsg_free(msg);
595 return ret;
596 }
599 static void nl80211_recv_beacons(int sock, void *eloop_ctx, void *handle)
600 {
601 struct nl80211_wiphy_data *w = eloop_ctx;
603 wpa_printf(MSG_EXCESSIVE, "nl80211: Beacon event message available");
605 nl_recvmsgs(handle, w->nl_cb);
606 }
609 static int process_beacon_event(struct nl_msg *msg, void *arg)
610 {
611 struct nl80211_wiphy_data *w = arg;
612 struct wpa_driver_nl80211_data *drv;
613 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
614 struct nlattr *tb[NL80211_ATTR_MAX + 1];
615 union wpa_event_data event;
617 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
618 genlmsg_attrlen(gnlh, 0), NULL);
620 if (gnlh->cmd != NL80211_CMD_FRAME) {
621 wpa_printf(MSG_DEBUG, "nl80211: Unexpected beacon event? (%d)",
622 gnlh->cmd);
623 return NL_SKIP;
624 }
626 if (!tb[NL80211_ATTR_FRAME])
627 return NL_SKIP;
629 dl_list_for_each(drv, &w->drvs, struct wpa_driver_nl80211_data,
630 wiphy_list) {
631 os_memset(&event, 0, sizeof(event));
632 event.rx_mgmt.frame = nla_data(tb[NL80211_ATTR_FRAME]);
633 event.rx_mgmt.frame_len = nla_len(tb[NL80211_ATTR_FRAME]);
634 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
635 }
637 return NL_SKIP;
638 }
641 static struct nl80211_wiphy_data *
642 nl80211_get_wiphy_data_ap(struct i802_bss *bss)
643 {
644 static DEFINE_DL_LIST(nl80211_wiphys);
645 struct nl80211_wiphy_data *w;
646 int wiphy_idx, found = 0;
647 struct i802_bss *tmp_bss;
649 if (bss->wiphy_data != NULL)
650 return bss->wiphy_data;
652 wiphy_idx = nl80211_get_wiphy_index(bss);
654 dl_list_for_each(w, &nl80211_wiphys, struct nl80211_wiphy_data, list) {
655 if (w->wiphy_idx == wiphy_idx)
656 goto add;
657 }
659 /* alloc new one */
660 w = os_zalloc(sizeof(*w));
661 if (w == NULL)
662 return NULL;
663 w->wiphy_idx = wiphy_idx;
664 dl_list_init(&w->bsss);
665 dl_list_init(&w->drvs);
667 w->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
668 if (!w->nl_cb) {
669 os_free(w);
670 return NULL;
671 }
672 nl_cb_set(w->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL);
673 nl_cb_set(w->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_beacon_event,
674 w);
676 w->nl_beacons = nl_create_handle(bss->drv->global->nl_cb,
677 "wiphy beacons");
678 if (w->nl_beacons == NULL) {
679 os_free(w);
680 return NULL;
681 }
683 if (nl80211_register_beacons(bss->drv, w)) {
684 nl_destroy_handles(&w->nl_beacons);
685 os_free(w);
686 return NULL;
687 }
689 eloop_register_read_sock(nl_socket_get_fd(w->nl_beacons),
690 nl80211_recv_beacons, w, w->nl_beacons);
692 dl_list_add(&nl80211_wiphys, &w->list);
694 add:
695 /* drv entry for this bss already there? */
696 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) {
697 if (tmp_bss->drv == bss->drv) {
698 found = 1;
699 break;
700 }
701 }
702 /* if not add it */
703 if (!found)
704 dl_list_add(&w->drvs, &bss->drv->wiphy_list);
706 dl_list_add(&w->bsss, &bss->wiphy_list);
707 bss->wiphy_data = w;
708 return w;
709 }
712 static void nl80211_put_wiphy_data_ap(struct i802_bss *bss)
713 {
714 struct nl80211_wiphy_data *w = bss->wiphy_data;
715 struct i802_bss *tmp_bss;
716 int found = 0;
718 if (w == NULL)
719 return;
720 bss->wiphy_data = NULL;
721 dl_list_del(&bss->wiphy_list);
723 /* still any for this drv present? */
724 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) {
725 if (tmp_bss->drv == bss->drv) {
726 found = 1;
727 break;
728 }
729 }
730 /* if not remove it */
731 if (!found)
732 dl_list_del(&bss->drv->wiphy_list);
734 if (!dl_list_empty(&w->bsss))
735 return;
737 eloop_unregister_read_sock(nl_socket_get_fd(w->nl_beacons));
739 nl_cb_put(w->nl_cb);
740 nl_destroy_handles(&w->nl_beacons);
741 dl_list_del(&w->list);
742 os_free(w);
743 }
746 static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid)
747 {
748 struct i802_bss *bss = priv;
749 struct wpa_driver_nl80211_data *drv = bss->drv;
750 if (!drv->associated)
751 return -1;
752 os_memcpy(bssid, drv->bssid, ETH_ALEN);
753 return 0;
754 }
757 static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid)
758 {
759 struct i802_bss *bss = priv;
760 struct wpa_driver_nl80211_data *drv = bss->drv;
761 if (!drv->associated)
762 return -1;
763 os_memcpy(ssid, drv->ssid, drv->ssid_len);
764 return drv->ssid_len;
765 }
768 static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv,
769 char *buf, size_t len, int del)
770 {
771 union wpa_event_data event;
773 os_memset(&event, 0, sizeof(event));
774 if (len > sizeof(event.interface_status.ifname))
775 len = sizeof(event.interface_status.ifname) - 1;
776 os_memcpy(event.interface_status.ifname, buf, len);
777 event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED :
778 EVENT_INTERFACE_ADDED;
780 wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s",
781 del ? "DEL" : "NEW",
782 event.interface_status.ifname,
783 del ? "removed" : "added");
785 if (os_strcmp(drv->first_bss.ifname, event.interface_status.ifname) == 0) {
786 if (del) {
787 if (drv->if_removed) {
788 wpa_printf(MSG_DEBUG, "nl80211: if_removed "
789 "already set - ignore event");
790 return;
791 }
792 drv->if_removed = 1;
793 } else {
794 if (if_nametoindex(drv->first_bss.ifname) == 0) {
795 wpa_printf(MSG_DEBUG, "nl80211: Interface %s "
796 "does not exist - ignore "
797 "RTM_NEWLINK",
798 drv->first_bss.ifname);
799 return;
800 }
801 if (!drv->if_removed) {
802 wpa_printf(MSG_DEBUG, "nl80211: if_removed "
803 "already cleared - ignore event");
804 return;
805 }
806 drv->if_removed = 0;
807 }
808 }
810 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event);
811 }
814 static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv,
815 u8 *buf, size_t len)
816 {
817 int attrlen, rta_len;
818 struct rtattr *attr;
820 attrlen = len;
821 attr = (struct rtattr *) buf;
823 rta_len = RTA_ALIGN(sizeof(struct rtattr));
824 while (RTA_OK(attr, attrlen)) {
825 if (attr->rta_type == IFLA_IFNAME) {
826 if (os_strcmp(((char *) attr) + rta_len, drv->first_bss.ifname)
827 == 0)
828 return 1;
829 else
830 break;
831 }
832 attr = RTA_NEXT(attr, attrlen);
833 }
835 return 0;
836 }
839 static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv,
840 int ifindex, u8 *buf, size_t len)
841 {
842 if (drv->ifindex == ifindex)
843 return 1;
845 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) {
846 drv->first_bss.ifindex = if_nametoindex(drv->first_bss.ifname);
847 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed "
848 "interface");
849 wpa_driver_nl80211_finish_drv_init(drv);
850 return 1;
851 }
853 return 0;
854 }
857 static struct wpa_driver_nl80211_data *
858 nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len)
859 {
860 struct wpa_driver_nl80211_data *drv;
861 dl_list_for_each(drv, &global->interfaces,
862 struct wpa_driver_nl80211_data, list) {
863 if (wpa_driver_nl80211_own_ifindex(drv, idx, buf, len) ||
864 have_ifidx(drv, idx))
865 return drv;
866 }
867 return NULL;
868 }
871 static void wpa_driver_nl80211_event_rtm_newlink(void *ctx,
872 struct ifinfomsg *ifi,
873 u8 *buf, size_t len)
874 {
875 struct nl80211_global *global = ctx;
876 struct wpa_driver_nl80211_data *drv;
877 int attrlen, rta_len;
878 struct rtattr *attr;
879 u32 brid = 0;
880 char namebuf[IFNAMSIZ];
882 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len);
883 if (!drv) {
884 wpa_printf(MSG_DEBUG, "nl80211: Ignore event for foreign "
885 "ifindex %d", ifi->ifi_index);
886 return;
887 }
889 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x "
890 "(%s%s%s%s)",
891 drv->operstate, ifi->ifi_flags,
892 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "",
893 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "",
894 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "",
895 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : "");
897 if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) {
898 if (if_indextoname(ifi->ifi_index, namebuf) &&
899 linux_iface_up(drv->global->ioctl_sock,
900 drv->first_bss.ifname) > 0) {
901 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down "
902 "event since interface %s is up", namebuf);
903 return;
904 }
905 wpa_printf(MSG_DEBUG, "nl80211: Interface down");
906 if (drv->ignore_if_down_event) {
907 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down "
908 "event generated by mode change");
909 drv->ignore_if_down_event = 0;
910 } else {
911 drv->if_disabled = 1;
912 wpa_supplicant_event(drv->ctx,
913 EVENT_INTERFACE_DISABLED, NULL);
914 }
915 }
917 if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) {
918 if (if_indextoname(ifi->ifi_index, namebuf) &&
919 linux_iface_up(drv->global->ioctl_sock,
920 drv->first_bss.ifname) == 0) {
921 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
922 "event since interface %s is down",
923 namebuf);
924 } else if (if_nametoindex(drv->first_bss.ifname) == 0) {
925 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
926 "event since interface %s does not exist",
927 drv->first_bss.ifname);
928 } else if (drv->if_removed) {
929 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
930 "event since interface %s is marked "
931 "removed", drv->first_bss.ifname);
932 } else {
933 wpa_printf(MSG_DEBUG, "nl80211: Interface up");
934 drv->if_disabled = 0;
935 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED,
936 NULL);
937 }
938 }
940 /*
941 * Some drivers send the association event before the operup event--in
942 * this case, lifting operstate in wpa_driver_nl80211_set_operstate()
943 * fails. This will hit us when wpa_supplicant does not need to do
944 * IEEE 802.1X authentication
945 */
946 if (drv->operstate == 1 &&
947 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP &&
948 !(ifi->ifi_flags & IFF_RUNNING))
949 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex,
950 -1, IF_OPER_UP);
952 attrlen = len;
953 attr = (struct rtattr *) buf;
954 rta_len = RTA_ALIGN(sizeof(struct rtattr));
955 while (RTA_OK(attr, attrlen)) {
956 if (attr->rta_type == IFLA_IFNAME) {
957 wpa_driver_nl80211_event_link(
958 drv,
959 ((char *) attr) + rta_len,
960 attr->rta_len - rta_len, 0);
961 } else if (attr->rta_type == IFLA_MASTER)
962 brid = nla_get_u32((struct nlattr *) attr);
963 attr = RTA_NEXT(attr, attrlen);
964 }
966 if (ifi->ifi_family == AF_BRIDGE && brid) {
967 /* device has been added to bridge */
968 if_indextoname(brid, namebuf);
969 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s",
970 brid, namebuf);
971 add_ifidx(drv, brid);
972 }
973 }
976 static void wpa_driver_nl80211_event_rtm_dellink(void *ctx,
977 struct ifinfomsg *ifi,
978 u8 *buf, size_t len)
979 {
980 struct nl80211_global *global = ctx;
981 struct wpa_driver_nl80211_data *drv;
982 int attrlen, rta_len;
983 struct rtattr *attr;
984 u32 brid = 0;
986 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len);
987 if (!drv) {
988 wpa_printf(MSG_DEBUG, "nl80211: Ignore dellink event for "
989 "foreign ifindex %d", ifi->ifi_index);
990 return;
991 }
993 attrlen = len;
994 attr = (struct rtattr *) buf;
996 rta_len = RTA_ALIGN(sizeof(struct rtattr));
997 while (RTA_OK(attr, attrlen)) {
998 if (attr->rta_type == IFLA_IFNAME) {
999 wpa_driver_nl80211_event_link(
1000 drv,
1001 ((char *) attr) + rta_len,
1002 attr->rta_len - rta_len, 1);
1003 } else if (attr->rta_type == IFLA_MASTER)
1004 brid = nla_get_u32((struct nlattr *) attr);
1005 attr = RTA_NEXT(attr, attrlen);
1006 }
1008 if (ifi->ifi_family == AF_BRIDGE && brid) {
1009 /* device has been removed from bridge */
1010 char namebuf[IFNAMSIZ];
1011 if_indextoname(brid, namebuf);
1012 wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge "
1013 "%s", brid, namebuf);
1014 del_ifidx(drv, brid);
1015 }
1016 }
1019 static void mlme_event_auth(struct wpa_driver_nl80211_data *drv,
1020 const u8 *frame, size_t len)
1021 {
1022 const struct ieee80211_mgmt *mgmt;
1023 union wpa_event_data event;
1025 mgmt = (const struct ieee80211_mgmt *) frame;
1026 if (len < 24 + sizeof(mgmt->u.auth)) {
1027 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
1028 "frame");
1029 return;
1030 }
1032 os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN);
1033 os_memset(&event, 0, sizeof(event));
1034 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN);
1035 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg);
1036 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code);
1037 if (len > 24 + sizeof(mgmt->u.auth)) {
1038 event.auth.ies = mgmt->u.auth.variable;
1039 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth);
1040 }
1042 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event);
1043 }
1046 static unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv)
1047 {
1048 struct nl_msg *msg;
1049 int ret;
1050 struct nl80211_bss_info_arg arg;
1052 os_memset(&arg, 0, sizeof(arg));
1053 msg = nlmsg_alloc();
1054 if (!msg)
1055 goto nla_put_failure;
1057 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
1058 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1060 arg.drv = drv;
1061 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
1062 msg = NULL;
1063 if (ret == 0) {
1064 wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the "
1065 "associated BSS from scan results: %u MHz",
1066 arg.assoc_freq);
1067 return arg.assoc_freq ? arg.assoc_freq : drv->assoc_freq;
1068 }
1069 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
1070 "(%s)", ret, strerror(-ret));
1071 nla_put_failure:
1072 nlmsg_free(msg);
1073 return drv->assoc_freq;
1074 }
1077 static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv,
1078 const u8 *frame, size_t len)
1079 {
1080 const struct ieee80211_mgmt *mgmt;
1081 union wpa_event_data event;
1082 u16 status;
1084 mgmt = (const struct ieee80211_mgmt *) frame;
1085 #if (defined (CONFIG_AP) || defined (HOSTAPD) ) && defined (ANDROID_BRCM_P2P_PATCH)
1086 if (drv->nlmode == NL80211_IFTYPE_AP || drv->nlmode == NL80211_IFTYPE_P2P_GO) {
1087 if (len < 24 + sizeof(mgmt->u.assoc_req)) {
1088 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
1089 "frame");
1090 return;
1091 }
1092 os_memset(&event, 0, sizeof(event));
1093 event.assoc_info.freq = drv->assoc_freq;
1094 event.assoc_info.req_ies = (u8 *) mgmt->u.assoc_req.variable;
1095 event.assoc_info.req_ies_len = len - 24 - sizeof(mgmt->u.assoc_req);
1096 event.assoc_info.addr = mgmt->sa;
1097 } else {
1098 #endif
1099 if (len < 24 + sizeof(mgmt->u.assoc_resp)) {
1100 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
1101 "frame");
1102 return;
1103 }
1105 status = le_to_host16(mgmt->u.assoc_resp.status_code);
1106 if (status != WLAN_STATUS_SUCCESS) {
1107 os_memset(&event, 0, sizeof(event));
1108 event.assoc_reject.bssid = mgmt->bssid;
1109 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
1110 event.assoc_reject.resp_ies =
1111 (u8 *) mgmt->u.assoc_resp.variable;
1112 event.assoc_reject.resp_ies_len =
1113 len - 24 - sizeof(mgmt->u.assoc_resp);
1114 }
1115 event.assoc_reject.status_code = status;
1117 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
1118 return;
1119 }
1121 drv->associated = 1;
1122 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN);
1124 os_memset(&event, 0, sizeof(event));
1125 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
1126 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable;
1127 event.assoc_info.resp_ies_len =
1128 len - 24 - sizeof(mgmt->u.assoc_resp);
1129 }
1131 event.assoc_info.freq = drv->assoc_freq;
1132 #if (defined (CONFIG_AP) || defined(HOSTAPD)) && defined (ANDROID_BRCM_P2P_PATCH)
1133 }
1134 #endif
1136 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
1137 }
1140 static void mlme_event_connect(struct wpa_driver_nl80211_data *drv,
1141 enum nl80211_commands cmd, struct nlattr *status,
1142 struct nlattr *addr, struct nlattr *req_ie,
1143 struct nlattr *resp_ie)
1144 {
1145 union wpa_event_data event;
1147 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
1148 /*
1149 * Avoid reporting two association events that would confuse
1150 * the core code.
1151 */
1152 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) "
1153 "when using userspace SME", cmd);
1154 return;
1155 }
1157 os_memset(&event, 0, sizeof(event));
1158 if (cmd == NL80211_CMD_CONNECT &&
1159 nla_get_u16(status) != WLAN_STATUS_SUCCESS) {
1160 if (addr)
1161 event.assoc_reject.bssid = nla_data(addr);
1162 if (resp_ie) {
1163 event.assoc_reject.resp_ies = nla_data(resp_ie);
1164 event.assoc_reject.resp_ies_len = nla_len(resp_ie);
1165 }
1166 event.assoc_reject.status_code = nla_get_u16(status);
1167 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
1168 return;
1169 }
1171 drv->associated = 1;
1172 if (addr)
1173 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN);
1175 if (req_ie) {
1176 event.assoc_info.req_ies = nla_data(req_ie);
1177 event.assoc_info.req_ies_len = nla_len(req_ie);
1178 }
1179 if (resp_ie) {
1180 event.assoc_info.resp_ies = nla_data(resp_ie);
1181 event.assoc_info.resp_ies_len = nla_len(resp_ie);
1182 }
1184 event.assoc_info.freq = nl80211_get_assoc_freq(drv);
1186 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
1187 }
1190 static void mlme_event_disconnect(struct wpa_driver_nl80211_data *drv,
1191 struct nlattr *reason, struct nlattr *addr,
1192 struct nlattr *by_ap)
1193 {
1194 union wpa_event_data data;
1196 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
1197 /*
1198 * Avoid reporting two disassociation events that could
1199 * confuse the core code.
1200 */
1201 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect "
1202 "event when using userspace SME");
1203 return;
1204 }
1206 drv->associated = 0;
1207 os_memset(&data, 0, sizeof(data));
1208 if (reason)
1209 data.disassoc_info.reason_code = nla_get_u16(reason);
1210 data.disassoc_info.locally_generated = by_ap == NULL;
1211 wpa_supplicant_event(drv->ctx, EVENT_DISASSOC, &data);
1212 }
1215 static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv,
1216 enum nl80211_commands cmd, struct nlattr *addr)
1217 {
1218 union wpa_event_data event;
1219 enum wpa_event_type ev;
1221 if (nla_len(addr) != ETH_ALEN)
1222 return;
1224 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR,
1225 cmd, MAC2STR((u8 *) nla_data(addr)));
1227 if (cmd == NL80211_CMD_AUTHENTICATE)
1228 ev = EVENT_AUTH_TIMED_OUT;
1229 else if (cmd == NL80211_CMD_ASSOCIATE)
1230 ev = EVENT_ASSOC_TIMED_OUT;
1231 else
1232 return;
1234 os_memset(&event, 0, sizeof(event));
1235 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN);
1236 wpa_supplicant_event(drv->ctx, ev, &event);
1237 }
1240 static void mlme_event_mgmt(struct wpa_driver_nl80211_data *drv,
1241 struct nlattr *freq, const u8 *frame, size_t len)
1242 {
1243 const struct ieee80211_mgmt *mgmt;
1244 union wpa_event_data event;
1245 u16 fc, stype;
1247 mgmt = (const struct ieee80211_mgmt *) frame;
1248 if (len < 24) {
1249 wpa_printf(MSG_DEBUG, "nl80211: Too short action frame");
1250 return;
1251 }
1253 fc = le_to_host16(mgmt->frame_control);
1254 stype = WLAN_FC_GET_STYPE(fc);
1256 os_memset(&event, 0, sizeof(event));
1257 if (freq) {
1258 event.rx_action.freq = nla_get_u32(freq);
1259 drv->last_mgmt_freq = event.rx_action.freq;
1260 }
1261 if (stype == WLAN_FC_STYPE_ACTION) {
1262 event.rx_action.da = mgmt->da;
1263 event.rx_action.sa = mgmt->sa;
1264 event.rx_action.bssid = mgmt->bssid;
1265 event.rx_action.category = mgmt->u.action.category;
1266 event.rx_action.data = &mgmt->u.action.category + 1;
1267 event.rx_action.len = frame + len - event.rx_action.data;
1268 wpa_supplicant_event(drv->ctx, EVENT_RX_ACTION, &event);
1269 } else {
1270 event.rx_mgmt.frame = frame;
1271 event.rx_mgmt.frame_len = len;
1272 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
1273 }
1274 }
1277 static void mlme_event_mgmt_tx_status(struct wpa_driver_nl80211_data *drv,
1278 struct nlattr *cookie, const u8 *frame,
1279 size_t len, struct nlattr *ack)
1280 {
1281 union wpa_event_data event;
1282 const struct ieee80211_hdr *hdr;
1283 u16 fc;
1285 if (!is_ap_interface(drv->nlmode)) {
1286 u64 cookie_val;
1288 if (!cookie)
1289 return;
1291 cookie_val = nla_get_u64(cookie);
1292 wpa_printf(MSG_DEBUG, "nl80211: Action TX status:"
1293 " cookie=0%llx%s (ack=%d)",
1294 (long long unsigned int) cookie_val,
1295 cookie_val == drv->send_action_cookie ?
1296 " (match)" : " (unknown)", ack != NULL);
1297 if (cookie_val != drv->send_action_cookie)
1298 return;
1299 }
1301 hdr = (const struct ieee80211_hdr *) frame;
1302 fc = le_to_host16(hdr->frame_control);
1304 os_memset(&event, 0, sizeof(event));
1305 event.tx_status.type = WLAN_FC_GET_TYPE(fc);
1306 event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
1307 event.tx_status.dst = hdr->addr1;
1308 event.tx_status.data = frame;
1309 event.tx_status.data_len = len;
1310 event.tx_status.ack = ack != NULL;
1311 wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event);
1312 }
1315 static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv,
1316 enum wpa_event_type type,
1317 const u8 *frame, size_t len)
1318 {
1319 const struct ieee80211_mgmt *mgmt;
1320 union wpa_event_data event;
1321 const u8 *bssid = NULL;
1322 u16 reason_code = 0;
1324 mgmt = (const struct ieee80211_mgmt *) frame;
1325 if (len >= 24) {
1326 bssid = mgmt->bssid;
1328 if (drv->associated != 0 &&
1329 os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 &&
1330 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) {
1331 /*
1332 * We have presumably received this deauth as a
1333 * response to a clear_state_mismatch() outgoing
1334 * deauth. Don't let it take us offline!
1335 */
1336 wpa_printf(MSG_DEBUG, "nl80211: Deauth received "
1337 "from Unknown BSSID " MACSTR " -- ignoring",
1338 MAC2STR(bssid));
1339 return;
1340 }
1341 }
1343 drv->associated = 0;
1344 os_memset(&event, 0, sizeof(event));
1346 /* Note: Same offset for Reason Code in both frame subtypes */
1347 if (len >= 24 + sizeof(mgmt->u.deauth))
1348 reason_code = le_to_host16(mgmt->u.deauth.reason_code);
1350 if (type == EVENT_DISASSOC) {
1351 event.disassoc_info.locally_generated =
1352 !os_memcmp(mgmt->sa, drv->first_bss.addr, ETH_ALEN);
1353 #ifdef ANDROID_BRCM_P2P_PATCH
1354 if (is_ap_interface(drv->nlmode)) {
1355 event.disassoc_info.addr = mgmt->sa;
1356 } else
1357 #endif /* ANDROID_BRCM_P2P_PATCH */
1358 event.disassoc_info.addr = bssid;
1359 event.disassoc_info.reason_code = reason_code;
1360 if (frame + len > mgmt->u.disassoc.variable) {
1361 event.disassoc_info.ie = mgmt->u.disassoc.variable;
1362 event.disassoc_info.ie_len = frame + len -
1363 mgmt->u.disassoc.variable;
1364 }
1365 } else {
1366 event.deauth_info.locally_generated =
1367 !os_memcmp(mgmt->sa, drv->first_bss.addr, ETH_ALEN);
1368 #ifdef ANDROID_BRCM_P2P_PATCH
1369 if (is_ap_interface(drv->nlmode)) {
1370 event.deauth_info.addr = mgmt->sa;
1371 } else
1372 #endif /* ANDROID_BRCM_P2P_PATCH */
1373 event.deauth_info.addr = bssid;
1374 event.deauth_info.reason_code = reason_code;
1375 if (frame + len > mgmt->u.deauth.variable) {
1376 event.deauth_info.ie = mgmt->u.deauth.variable;
1377 event.deauth_info.ie_len = frame + len -
1378 mgmt->u.deauth.variable;
1379 }
1380 }
1382 wpa_supplicant_event(drv->ctx, type, &event);
1383 }
1386 static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv,
1387 enum wpa_event_type type,
1388 const u8 *frame, size_t len)
1389 {
1390 const struct ieee80211_mgmt *mgmt;
1391 union wpa_event_data event;
1392 u16 reason_code = 0;
1394 if (len < 24)
1395 return;
1397 mgmt = (const struct ieee80211_mgmt *) frame;
1399 os_memset(&event, 0, sizeof(event));
1400 /* Note: Same offset for Reason Code in both frame subtypes */
1401 if (len >= 24 + sizeof(mgmt->u.deauth))
1402 reason_code = le_to_host16(mgmt->u.deauth.reason_code);
1404 if (type == EVENT_UNPROT_DISASSOC) {
1405 event.unprot_disassoc.sa = mgmt->sa;
1406 event.unprot_disassoc.da = mgmt->da;
1407 event.unprot_disassoc.reason_code = reason_code;
1408 } else {
1409 event.unprot_deauth.sa = mgmt->sa;
1410 event.unprot_deauth.da = mgmt->da;
1411 event.unprot_deauth.reason_code = reason_code;
1412 }
1414 wpa_supplicant_event(drv->ctx, type, &event);
1415 }
1418 static void mlme_event(struct wpa_driver_nl80211_data *drv,
1419 enum nl80211_commands cmd, struct nlattr *frame,
1420 struct nlattr *addr, struct nlattr *timed_out,
1421 struct nlattr *freq, struct nlattr *ack,
1422 struct nlattr *cookie)
1423 {
1424 if (timed_out && addr) {
1425 mlme_timeout_event(drv, cmd, addr);
1426 return;
1427 }
1429 if (frame == NULL) {
1430 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d without frame "
1431 "data", cmd);
1432 return;
1433 }
1435 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d", cmd);
1436 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame",
1437 nla_data(frame), nla_len(frame));
1439 switch (cmd) {
1440 case NL80211_CMD_AUTHENTICATE:
1441 mlme_event_auth(drv, nla_data(frame), nla_len(frame));
1442 break;
1443 case NL80211_CMD_ASSOCIATE:
1444 mlme_event_assoc(drv, nla_data(frame), nla_len(frame));
1445 break;
1446 case NL80211_CMD_DEAUTHENTICATE:
1447 mlme_event_deauth_disassoc(drv, EVENT_DEAUTH,
1448 nla_data(frame), nla_len(frame));
1449 break;
1450 case NL80211_CMD_DISASSOCIATE:
1451 mlme_event_deauth_disassoc(drv, EVENT_DISASSOC,
1452 nla_data(frame), nla_len(frame));
1453 break;
1454 case NL80211_CMD_FRAME:
1455 mlme_event_mgmt(drv, freq, nla_data(frame), nla_len(frame));
1456 break;
1457 case NL80211_CMD_FRAME_TX_STATUS:
1458 mlme_event_mgmt_tx_status(drv, cookie, nla_data(frame),
1459 nla_len(frame), ack);
1460 break;
1461 case NL80211_CMD_UNPROT_DEAUTHENTICATE:
1462 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH,
1463 nla_data(frame), nla_len(frame));
1464 break;
1465 case NL80211_CMD_UNPROT_DISASSOCIATE:
1466 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC,
1467 nla_data(frame), nla_len(frame));
1468 break;
1469 default:
1470 break;
1471 }
1472 }
1475 static void mlme_event_michael_mic_failure(struct wpa_driver_nl80211_data *drv,
1476 struct nlattr *tb[])
1477 {
1478 union wpa_event_data data;
1480 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure");
1481 os_memset(&data, 0, sizeof(data));
1482 if (tb[NL80211_ATTR_MAC]) {
1483 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address",
1484 nla_data(tb[NL80211_ATTR_MAC]),
1485 nla_len(tb[NL80211_ATTR_MAC]));
1486 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]);
1487 }
1488 if (tb[NL80211_ATTR_KEY_SEQ]) {
1489 wpa_hexdump(MSG_DEBUG, "nl80211: TSC",
1490 nla_data(tb[NL80211_ATTR_KEY_SEQ]),
1491 nla_len(tb[NL80211_ATTR_KEY_SEQ]));
1492 }
1493 if (tb[NL80211_ATTR_KEY_TYPE]) {
1494 enum nl80211_key_type key_type =
1495 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]);
1496 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type);
1497 if (key_type == NL80211_KEYTYPE_PAIRWISE)
1498 data.michael_mic_failure.unicast = 1;
1499 } else
1500 data.michael_mic_failure.unicast = 1;
1502 if (tb[NL80211_ATTR_KEY_IDX]) {
1503 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]);
1504 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id);
1505 }
1507 wpa_supplicant_event(drv->ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
1508 }
1511 static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv,
1512 struct nlattr *tb[])
1513 {
1514 if (tb[NL80211_ATTR_MAC] == NULL) {
1515 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined "
1516 "event");
1517 return;
1518 }
1519 os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
1520 drv->associated = 1;
1521 wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined",
1522 MAC2STR(drv->bssid));
1524 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL);
1525 }
1528 static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv,
1529 int cancel_event, struct nlattr *tb[])
1530 {
1531 unsigned int freq, chan_type, duration;
1532 union wpa_event_data data;
1533 u64 cookie;
1535 if (tb[NL80211_ATTR_WIPHY_FREQ])
1536 freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]);
1537 else
1538 freq = 0;
1540 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
1541 chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1542 else
1543 chan_type = 0;
1545 if (tb[NL80211_ATTR_DURATION])
1546 duration = nla_get_u32(tb[NL80211_ATTR_DURATION]);
1547 else
1548 duration = 0;
1550 if (tb[NL80211_ATTR_COOKIE])
1551 cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
1552 else
1553 cookie = 0;
1555 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d "
1556 "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))",
1557 cancel_event, freq, chan_type, duration,
1558 (long long unsigned int) cookie,
1559 cookie == drv->remain_on_chan_cookie ? "match" : "unknown");
1561 if (cookie != drv->remain_on_chan_cookie)
1562 return; /* not for us */
1564 if (cancel_event)
1565 drv->pending_remain_on_chan = 0;
1567 os_memset(&data, 0, sizeof(data));
1568 data.remain_on_channel.freq = freq;
1569 data.remain_on_channel.duration = duration;
1570 wpa_supplicant_event(drv->ctx, cancel_event ?
1571 EVENT_CANCEL_REMAIN_ON_CHANNEL :
1572 EVENT_REMAIN_ON_CHANNEL, &data);
1573 }
1576 static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted,
1577 struct nlattr *tb[])
1578 {
1579 union wpa_event_data event;
1580 struct nlattr *nl;
1581 int rem;
1582 struct scan_info *info;
1583 #define MAX_REPORT_FREQS 50
1584 int freqs[MAX_REPORT_FREQS];
1585 int num_freqs = 0;
1587 if (drv->scan_for_auth) {
1588 drv->scan_for_auth = 0;
1589 wpa_printf(MSG_DEBUG, "nl80211: Scan results for missing "
1590 "cfg80211 BSS entry");
1591 wpa_driver_nl80211_authenticate_retry(drv);
1592 return;
1593 }
1595 os_memset(&event, 0, sizeof(event));
1596 info = &event.scan_info;
1597 info->aborted = aborted;
1599 if (tb[NL80211_ATTR_SCAN_SSIDS]) {
1600 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) {
1601 struct wpa_driver_scan_ssid *s =
1602 &info->ssids[info->num_ssids];
1603 s->ssid = nla_data(nl);
1604 s->ssid_len = nla_len(nl);
1605 info->num_ssids++;
1606 if (info->num_ssids == WPAS_MAX_SCAN_SSIDS)
1607 break;
1608 }
1609 }
1610 if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) {
1611 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem)
1612 {
1613 freqs[num_freqs] = nla_get_u32(nl);
1614 num_freqs++;
1615 if (num_freqs == MAX_REPORT_FREQS - 1)
1616 break;
1617 }
1618 info->freqs = freqs;
1619 info->num_freqs = num_freqs;
1620 }
1621 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event);
1622 }
1625 static int get_link_signal(struct nl_msg *msg, void *arg)
1626 {
1627 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1628 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1629 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1];
1630 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = {
1631 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 },
1632 };
1633 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1];
1634 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = {
1635 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 },
1636 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 },
1637 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG },
1638 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG },
1639 };
1640 struct wpa_signal_info *sig_change = arg;
1642 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1643 genlmsg_attrlen(gnlh, 0), NULL);
1644 if (!tb[NL80211_ATTR_STA_INFO] ||
1645 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX,
1646 tb[NL80211_ATTR_STA_INFO], policy))
1647 return NL_SKIP;
1648 if (!sinfo[NL80211_STA_INFO_SIGNAL])
1649 return NL_SKIP;
1651 sig_change->current_signal =
1652 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]);
1654 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) {
1655 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX,
1656 sinfo[NL80211_STA_INFO_TX_BITRATE],
1657 rate_policy)) {
1658 sig_change->current_txrate = 0;
1659 } else {
1660 if (rinfo[NL80211_RATE_INFO_BITRATE]) {
1661 sig_change->current_txrate =
1662 nla_get_u16(rinfo[
1663 NL80211_RATE_INFO_BITRATE]) * 100;
1664 }
1665 }
1666 }
1668 return NL_SKIP;
1669 }
1672 static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv,
1673 struct wpa_signal_info *sig)
1674 {
1675 struct nl_msg *msg;
1677 sig->current_signal = -9999;
1678 sig->current_txrate = 0;
1680 msg = nlmsg_alloc();
1681 if (!msg)
1682 return -ENOMEM;
1684 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION);
1686 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1687 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
1689 return send_and_recv_msgs(drv, msg, get_link_signal, sig);
1690 nla_put_failure:
1691 nlmsg_free(msg);
1692 return -ENOBUFS;
1693 }
1696 static int get_link_noise(struct nl_msg *msg, void *arg)
1697 {
1698 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1699 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1700 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
1701 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
1702 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
1703 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
1704 };
1705 struct wpa_signal_info *sig_change = arg;
1707 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1708 genlmsg_attrlen(gnlh, 0), NULL);
1710 if (!tb[NL80211_ATTR_SURVEY_INFO]) {
1711 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!");
1712 return NL_SKIP;
1713 }
1715 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
1716 tb[NL80211_ATTR_SURVEY_INFO],
1717 survey_policy)) {
1718 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested "
1719 "attributes!");
1720 return NL_SKIP;
1721 }
1723 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY])
1724 return NL_SKIP;
1726 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) !=
1727 sig_change->frequency)
1728 return NL_SKIP;
1730 if (!sinfo[NL80211_SURVEY_INFO_NOISE])
1731 return NL_SKIP;
1733 sig_change->current_noise =
1734 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
1736 return NL_SKIP;
1737 }
1740 static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv,
1741 struct wpa_signal_info *sig_change)
1742 {
1743 struct nl_msg *msg;
1745 sig_change->current_noise = 9999;
1746 sig_change->frequency = drv->assoc_freq;
1748 msg = nlmsg_alloc();
1749 if (!msg)
1750 return -ENOMEM;
1752 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
1754 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1756 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change);
1757 nla_put_failure:
1758 nlmsg_free(msg);
1759 return -ENOBUFS;
1760 }
1763 static int get_noise_for_scan_results(struct nl_msg *msg, void *arg)
1764 {
1765 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1766 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1767 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
1768 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
1769 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
1770 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
1771 };
1772 struct wpa_scan_results *scan_results = arg;
1773 struct wpa_scan_res *scan_res;
1774 size_t i;
1776 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1777 genlmsg_attrlen(gnlh, 0), NULL);
1779 if (!tb[NL80211_ATTR_SURVEY_INFO]) {
1780 wpa_printf(MSG_DEBUG, "nl80211: Survey data missing");
1781 return NL_SKIP;
1782 }
1784 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
1785 tb[NL80211_ATTR_SURVEY_INFO],
1786 survey_policy)) {
1787 wpa_printf(MSG_DEBUG, "nl80211: Failed to parse nested "
1788 "attributes");
1789 return NL_SKIP;
1790 }
1792 if (!sinfo[NL80211_SURVEY_INFO_NOISE])
1793 return NL_SKIP;
1795 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY])
1796 return NL_SKIP;
1798 for (i = 0; i < scan_results->num; ++i) {
1799 scan_res = scan_results->res[i];
1800 if (!scan_res)
1801 continue;
1802 if ((int) nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) !=
1803 scan_res->freq)
1804 continue;
1805 if (!(scan_res->flags & WPA_SCAN_NOISE_INVALID))
1806 continue;
1807 scan_res->noise = (s8)
1808 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
1809 scan_res->flags &= ~WPA_SCAN_NOISE_INVALID;
1810 }
1812 return NL_SKIP;
1813 }
1816 static int nl80211_get_noise_for_scan_results(
1817 struct wpa_driver_nl80211_data *drv,
1818 struct wpa_scan_results *scan_res)
1819 {
1820 struct nl_msg *msg;
1822 msg = nlmsg_alloc();
1823 if (!msg)
1824 return -ENOMEM;
1826 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
1828 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1830 return send_and_recv_msgs(drv, msg, get_noise_for_scan_results,
1831 scan_res);
1832 nla_put_failure:
1833 nlmsg_free(msg);
1834 return -ENOBUFS;
1835 }
1838 static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv,
1839 struct nlattr *tb[])
1840 {
1841 static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
1842 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
1843 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 },
1844 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
1845 [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 },
1846 };
1847 struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1];
1848 enum nl80211_cqm_rssi_threshold_event event;
1849 union wpa_event_data ed;
1850 struct wpa_signal_info sig;
1851 int res;
1853 if (tb[NL80211_ATTR_CQM] == NULL ||
1854 nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM],
1855 cqm_policy)) {
1856 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event");
1857 return;
1858 }
1860 os_memset(&ed, 0, sizeof(ed));
1862 if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) {
1863 if (!tb[NL80211_ATTR_MAC])
1864 return;
1865 os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]),
1866 ETH_ALEN);
1867 wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed);
1868 return;
1869 }
1871 if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL)
1872 return;
1873 event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]);
1875 if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) {
1876 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
1877 "event: RSSI high");
1878 ed.signal_change.above_threshold = 1;
1879 } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) {
1880 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
1881 "event: RSSI low");
1882 ed.signal_change.above_threshold = 0;
1883 } else
1884 return;
1886 res = nl80211_get_link_signal(drv, &sig);
1887 if (res == 0) {
1888 ed.signal_change.current_signal = sig.current_signal;
1889 ed.signal_change.current_txrate = sig.current_txrate;
1890 wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d",
1891 sig.current_signal, sig.current_txrate);
1892 }
1894 res = nl80211_get_link_noise(drv, &sig);
1895 if (res == 0) {
1896 ed.signal_change.current_noise = sig.current_noise;
1897 wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm",
1898 sig.current_noise);
1899 }
1901 wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed);
1902 }
1905 static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv,
1906 struct nlattr **tb)
1907 {
1908 u8 *addr;
1909 union wpa_event_data data;
1911 if (tb[NL80211_ATTR_MAC] == NULL)
1912 return;
1913 addr = nla_data(tb[NL80211_ATTR_MAC]);
1914 wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr));
1916 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) {
1917 u8 *ies = NULL;
1918 size_t ies_len = 0;
1919 if (tb[NL80211_ATTR_IE]) {
1920 ies = nla_data(tb[NL80211_ATTR_IE]);
1921 ies_len = nla_len(tb[NL80211_ATTR_IE]);
1922 }
1923 wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len);
1924 drv_event_assoc(drv->ctx, addr, ies, ies_len, 0);
1925 return;
1926 }
1928 if (drv->nlmode != NL80211_IFTYPE_ADHOC)
1929 return;
1931 os_memset(&data, 0, sizeof(data));
1932 os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN);
1933 wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data);
1934 }
1937 static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv,
1938 struct nlattr **tb)
1939 {
1940 u8 *addr;
1941 union wpa_event_data data;
1943 if (tb[NL80211_ATTR_MAC] == NULL)
1944 return;
1945 addr = nla_data(tb[NL80211_ATTR_MAC]);
1946 wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR,
1947 MAC2STR(addr));
1949 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) {
1950 drv_event_disassoc(drv->ctx, addr);
1951 return;
1952 }
1954 if (drv->nlmode != NL80211_IFTYPE_ADHOC)
1955 return;
1957 os_memset(&data, 0, sizeof(data));
1958 os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN);
1959 wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data);
1960 }
1963 static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv,
1964 struct nlattr **tb)
1965 {
1966 struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA];
1967 static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = {
1968 [NL80211_REKEY_DATA_KEK] = {
1969 .minlen = NL80211_KEK_LEN,
1970 .maxlen = NL80211_KEK_LEN,
1971 },
1972 [NL80211_REKEY_DATA_KCK] = {
1973 .minlen = NL80211_KCK_LEN,
1974 .maxlen = NL80211_KCK_LEN,
1975 },
1976 [NL80211_REKEY_DATA_REPLAY_CTR] = {
1977 .minlen = NL80211_REPLAY_CTR_LEN,
1978 .maxlen = NL80211_REPLAY_CTR_LEN,
1979 },
1980 };
1981 union wpa_event_data data;
1983 if (!tb[NL80211_ATTR_MAC])
1984 return;
1985 if (!tb[NL80211_ATTR_REKEY_DATA])
1986 return;
1987 if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA,
1988 tb[NL80211_ATTR_REKEY_DATA], rekey_policy))
1989 return;
1990 if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR])
1991 return;
1993 os_memset(&data, 0, sizeof(data));
1994 data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]);
1995 wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR,
1996 MAC2STR(data.driver_gtk_rekey.bssid));
1997 data.driver_gtk_rekey.replay_ctr =
1998 nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]);
1999 wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter",
2000 data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN);
2001 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data);
2002 }
2005 static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv,
2006 struct nlattr **tb)
2007 {
2008 struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE];
2009 static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = {
2010 [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 },
2011 [NL80211_PMKSA_CANDIDATE_BSSID] = {
2012 .minlen = ETH_ALEN,
2013 .maxlen = ETH_ALEN,
2014 },
2015 [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG },
2016 };
2017 union wpa_event_data data;
2019 if (!tb[NL80211_ATTR_PMKSA_CANDIDATE])
2020 return;
2021 if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE,
2022 tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy))
2023 return;
2024 if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] ||
2025 !cand[NL80211_PMKSA_CANDIDATE_BSSID])
2026 return;
2028 os_memset(&data, 0, sizeof(data));
2029 os_memcpy(data.pmkid_candidate.bssid,
2030 nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN);
2031 data.pmkid_candidate.index =
2032 nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]);
2033 data.pmkid_candidate.preauth =
2034 cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL;
2035 wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data);
2036 }
2039 static void nl80211_client_probe_event(struct wpa_driver_nl80211_data *drv,
2040 struct nlattr **tb)
2041 {
2042 union wpa_event_data data;
2044 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_ACK])
2045 return;
2047 os_memset(&data, 0, sizeof(data));
2048 os_memcpy(data.client_poll.addr,
2049 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
2051 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_CLIENT_POLL_OK, &data);
2052 }
2055 static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb,
2056 int wds)
2057 {
2058 struct wpa_driver_nl80211_data *drv = bss->drv;
2059 union wpa_event_data event;
2061 if (!tb[NL80211_ATTR_MAC])
2062 return;
2064 os_memset(&event, 0, sizeof(event));
2065 event.rx_from_unknown.bssid = bss->addr;
2066 event.rx_from_unknown.addr = nla_data(tb[NL80211_ATTR_MAC]);
2067 event.rx_from_unknown.wds = wds;
2069 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event);
2070 }
2073 static void do_process_drv_event(struct wpa_driver_nl80211_data *drv,
2074 int cmd, struct nlattr **tb)
2075 {
2076 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED &&
2077 (cmd == NL80211_CMD_NEW_SCAN_RESULTS ||
2078 cmd == NL80211_CMD_SCAN_ABORTED)) {
2079 wpa_driver_nl80211_set_mode(&drv->first_bss,
2080 drv->ap_scan_as_station);
2081 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
2082 }
2084 switch (cmd) {
2085 case NL80211_CMD_TRIGGER_SCAN:
2086 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger");
2087 break;
2088 case NL80211_CMD_START_SCHED_SCAN:
2089 wpa_printf(MSG_DEBUG, "nl80211: Sched scan started");
2090 break;
2091 case NL80211_CMD_SCHED_SCAN_STOPPED:
2092 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stopped");
2093 wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL);
2094 break;
2095 case NL80211_CMD_NEW_SCAN_RESULTS:
2096 wpa_printf(MSG_DEBUG, "nl80211: New scan results available");
2097 drv->scan_complete_events = 1;
2098 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
2099 drv->ctx);
2100 send_scan_event(drv, 0, tb);
2101 break;
2102 case NL80211_CMD_SCHED_SCAN_RESULTS:
2103 wpa_printf(MSG_DEBUG,
2104 "nl80211: New sched scan results available");
2105 send_scan_event(drv, 0, tb);
2106 break;
2107 case NL80211_CMD_SCAN_ABORTED:
2108 wpa_printf(MSG_DEBUG, "nl80211: Scan aborted");
2109 /*
2110 * Need to indicate that scan results are available in order
2111 * not to make wpa_supplicant stop its scanning.
2112 */
2113 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
2114 drv->ctx);
2115 send_scan_event(drv, 1, tb);
2116 break;
2117 case NL80211_CMD_AUTHENTICATE:
2118 case NL80211_CMD_ASSOCIATE:
2119 case NL80211_CMD_DEAUTHENTICATE:
2120 case NL80211_CMD_DISASSOCIATE:
2121 case NL80211_CMD_FRAME_TX_STATUS:
2122 case NL80211_CMD_UNPROT_DEAUTHENTICATE:
2123 case NL80211_CMD_UNPROT_DISASSOCIATE:
2124 mlme_event(drv, cmd, tb[NL80211_ATTR_FRAME],
2125 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT],
2126 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK],
2127 tb[NL80211_ATTR_COOKIE]);
2128 break;
2129 case NL80211_CMD_CONNECT:
2130 case NL80211_CMD_ROAM:
2131 mlme_event_connect(drv, cmd,
2132 tb[NL80211_ATTR_STATUS_CODE],
2133 tb[NL80211_ATTR_MAC],
2134 tb[NL80211_ATTR_REQ_IE],
2135 tb[NL80211_ATTR_RESP_IE]);
2136 break;
2137 case NL80211_CMD_DISCONNECT:
2138 mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE],
2139 tb[NL80211_ATTR_MAC],
2140 tb[NL80211_ATTR_DISCONNECTED_BY_AP]);
2141 break;
2142 case NL80211_CMD_MICHAEL_MIC_FAILURE:
2143 mlme_event_michael_mic_failure(drv, tb);
2144 break;
2145 case NL80211_CMD_JOIN_IBSS:
2146 mlme_event_join_ibss(drv, tb);
2147 break;
2148 case NL80211_CMD_REMAIN_ON_CHANNEL:
2149 mlme_event_remain_on_channel(drv, 0, tb);
2150 break;
2151 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL:
2152 mlme_event_remain_on_channel(drv, 1, tb);
2153 break;
2154 case NL80211_CMD_NOTIFY_CQM:
2155 nl80211_cqm_event(drv, tb);
2156 break;
2157 case NL80211_CMD_REG_CHANGE:
2158 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change");
2159 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED,
2160 NULL);
2161 break;
2162 case NL80211_CMD_REG_BEACON_HINT:
2163 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint");
2164 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED,
2165 NULL);
2166 break;
2167 case NL80211_CMD_NEW_STATION:
2168 nl80211_new_station_event(drv, tb);
2169 break;
2170 case NL80211_CMD_DEL_STATION:
2171 nl80211_del_station_event(drv, tb);
2172 break;
2173 case NL80211_CMD_SET_REKEY_OFFLOAD:
2174 nl80211_rekey_offload_event(drv, tb);
2175 break;
2176 case NL80211_CMD_PMKSA_CANDIDATE:
2177 nl80211_pmksa_candidate_event(drv, tb);
2178 break;
2179 case NL80211_CMD_PROBE_CLIENT:
2180 nl80211_client_probe_event(drv, tb);
2181 break;
2182 default:
2183 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event "
2184 "(cmd=%d)", cmd);
2185 break;
2186 }
2187 }
2190 static int process_drv_event(struct nl_msg *msg, void *arg)
2191 {
2192 struct wpa_driver_nl80211_data *drv = arg;
2193 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2194 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2196 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2197 genlmsg_attrlen(gnlh, 0), NULL);
2199 if (tb[NL80211_ATTR_IFINDEX]) {
2200 int ifindex = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
2201 if (ifindex != drv->ifindex && !have_ifidx(drv, ifindex)) {
2202 wpa_printf(MSG_DEBUG, "nl80211: Ignored event (cmd=%d)"
2203 " for foreign interface (ifindex %d)",
2204 gnlh->cmd, ifindex);
2205 return NL_SKIP;
2206 }
2207 }
2209 do_process_drv_event(drv, gnlh->cmd, tb);
2210 return NL_SKIP;
2211 }
2214 static int process_global_event(struct nl_msg *msg, void *arg)
2215 {
2216 struct nl80211_global *global = arg;
2217 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2218 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2219 struct wpa_driver_nl80211_data *drv;
2220 int ifidx = -1;
2222 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2223 genlmsg_attrlen(gnlh, 0), NULL);
2225 if (tb[NL80211_ATTR_IFINDEX])
2226 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
2228 dl_list_for_each(drv, &global->interfaces,
2229 struct wpa_driver_nl80211_data, list) {
2230 if (ifidx == -1 || ifidx == drv->ifindex ||
2231 have_ifidx(drv, ifidx))
2232 do_process_drv_event(drv, gnlh->cmd, tb);
2233 }
2235 return NL_SKIP;
2236 }
2239 static int process_bss_event(struct nl_msg *msg, void *arg)
2240 {
2241 struct i802_bss *bss = arg;
2242 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2243 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2245 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2246 genlmsg_attrlen(gnlh, 0), NULL);
2248 switch (gnlh->cmd) {
2249 case NL80211_CMD_FRAME:
2250 case NL80211_CMD_FRAME_TX_STATUS:
2251 mlme_event(bss->drv, gnlh->cmd, tb[NL80211_ATTR_FRAME],
2252 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT],
2253 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK],
2254 tb[NL80211_ATTR_COOKIE]);
2255 break;
2256 case NL80211_CMD_UNEXPECTED_FRAME:
2257 nl80211_spurious_frame(bss, tb, 0);
2258 break;
2259 case NL80211_CMD_UNEXPECTED_4ADDR_FRAME:
2260 nl80211_spurious_frame(bss, tb, 1);
2261 break;
2262 default:
2263 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event "
2264 "(cmd=%d)", gnlh->cmd);
2265 break;
2266 }
2268 return NL_SKIP;
2269 }
2272 static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx,
2273 void *handle)
2274 {
2275 struct nl_cb *cb = eloop_ctx;
2277 wpa_printf(MSG_DEBUG, "nl80211: Event message available");
2279 nl_recvmsgs(handle, cb);
2280 }
2283 /**
2284 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain
2285 * @priv: driver_nl80211 private data
2286 * @alpha2_arg: country to which to switch to
2287 * Returns: 0 on success, -1 on failure
2288 *
2289 * This asks nl80211 to set the regulatory domain for given
2290 * country ISO / IEC alpha2.
2291 */
2292 static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg)
2293 {
2294 struct i802_bss *bss = priv;
2295 struct wpa_driver_nl80211_data *drv = bss->drv;
2296 char alpha2[3];
2297 struct nl_msg *msg;
2299 msg = nlmsg_alloc();
2300 if (!msg)
2301 return -ENOMEM;
2303 alpha2[0] = alpha2_arg[0];
2304 alpha2[1] = alpha2_arg[1];
2305 alpha2[2] = '\0';
2307 nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG);
2309 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2);
2310 if (send_and_recv_msgs(drv, msg, NULL, NULL))
2311 return -EINVAL;
2312 return 0;
2313 nla_put_failure:
2314 nlmsg_free(msg);
2315 return -EINVAL;
2316 }
2319 struct wiphy_info_data {
2320 struct wpa_driver_capa *capa;
2322 unsigned int error:1;
2323 unsigned int device_ap_sme:1;
2324 unsigned int poll_command_supported:1;
2325 unsigned int data_tx_status:1;
2326 unsigned int monitor_supported:1;
2327 };
2330 static unsigned int probe_resp_offload_support(int supp_protocols)
2331 {
2332 unsigned int prot = 0;
2334 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS)
2335 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS;
2336 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2)
2337 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2;
2338 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P)
2339 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P;
2340 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U)
2341 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING;
2343 return prot;
2344 }
2347 static int wiphy_info_handler(struct nl_msg *msg, void *arg)
2348 {
2349 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2350 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2351 struct wiphy_info_data *info = arg;
2352 int p2p_go_supported = 0, p2p_client_supported = 0;
2353 int p2p_concurrent = 0;
2354 int auth_supported = 0, connect_supported = 0;
2355 struct wpa_driver_capa *capa = info->capa;
2356 static struct nla_policy
2357 iface_combination_policy[NUM_NL80211_IFACE_COMB] = {
2358 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED },
2359 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 },
2360 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG },
2361 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 },
2362 },
2363 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = {
2364 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED },
2365 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 },
2366 };
2368 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2369 genlmsg_attrlen(gnlh, 0), NULL);
2371 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS])
2372 capa->max_scan_ssids =
2373 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]);
2375 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS])
2376 capa->max_sched_scan_ssids =
2377 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]);
2379 if (tb[NL80211_ATTR_MAX_MATCH_SETS])
2380 capa->max_match_sets =
2381 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]);
2383 if (tb[NL80211_ATTR_SUPPORTED_IFTYPES]) {
2384 struct nlattr *nl_mode;
2385 int i;
2386 nla_for_each_nested(nl_mode,
2387 tb[NL80211_ATTR_SUPPORTED_IFTYPES], i) {
2388 switch (nla_type(nl_mode)) {
2389 case NL80211_IFTYPE_AP:
2390 capa->flags |= WPA_DRIVER_FLAGS_AP;
2391 break;
2392 case NL80211_IFTYPE_P2P_GO:
2393 p2p_go_supported = 1;
2394 break;
2395 case NL80211_IFTYPE_P2P_CLIENT:
2396 p2p_client_supported = 1;
2397 break;
2398 case NL80211_IFTYPE_MONITOR:
2399 info->monitor_supported = 1;
2400 break;
2401 }
2402 }
2403 }
2405 if (tb[NL80211_ATTR_INTERFACE_COMBINATIONS]) {
2406 struct nlattr *nl_combi;
2407 int rem_combi;
2409 nla_for_each_nested(nl_combi,
2410 tb[NL80211_ATTR_INTERFACE_COMBINATIONS],
2411 rem_combi) {
2412 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB];
2413 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT];
2414 struct nlattr *nl_limit, *nl_mode;
2415 int err, rem_limit, rem_mode;
2416 int combination_has_p2p = 0, combination_has_mgd = 0;
2418 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB,
2419 nl_combi,
2420 iface_combination_policy);
2421 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] ||
2422 !tb_comb[NL80211_IFACE_COMB_MAXNUM] ||
2423 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS])
2424 goto broken_combination;
2426 nla_for_each_nested(nl_limit,
2427 tb_comb[NL80211_IFACE_COMB_LIMITS],
2428 rem_limit) {
2429 err = nla_parse_nested(tb_limit,
2430 MAX_NL80211_IFACE_LIMIT,
2431 nl_limit,
2432 iface_limit_policy);
2433 if (err ||
2434 !tb_limit[NL80211_IFACE_LIMIT_TYPES])
2435 goto broken_combination;
2437 nla_for_each_nested(
2438 nl_mode,
2439 tb_limit[NL80211_IFACE_LIMIT_TYPES],
2440 rem_mode) {
2441 int ift = nla_type(nl_mode);
2442 if (ift == NL80211_IFTYPE_P2P_GO ||
2443 ift == NL80211_IFTYPE_P2P_CLIENT)
2444 combination_has_p2p = 1;
2445 if (ift == NL80211_IFTYPE_STATION)
2446 combination_has_mgd = 1;
2447 }
2448 if (combination_has_p2p && combination_has_mgd)
2449 break;
2450 }
2452 if (combination_has_p2p && combination_has_mgd) {
2453 p2p_concurrent = 1;
2454 break;
2455 }
2457 broken_combination:
2458 ;
2459 }
2460 }
2462 if (tb[NL80211_ATTR_SUPPORTED_COMMANDS]) {
2463 struct nlattr *nl_cmd;
2464 int i;
2466 nla_for_each_nested(nl_cmd,
2467 tb[NL80211_ATTR_SUPPORTED_COMMANDS], i) {
2468 switch (nla_get_u32(nl_cmd)) {
2469 case NL80211_CMD_AUTHENTICATE:
2470 auth_supported = 1;
2471 break;
2472 case NL80211_CMD_CONNECT:
2473 connect_supported = 1;
2474 break;
2475 case NL80211_CMD_START_SCHED_SCAN:
2476 capa->sched_scan_supported = 1;
2477 break;
2478 case NL80211_CMD_PROBE_CLIENT:
2479 info->poll_command_supported = 1;
2480 break;
2481 }
2482 }
2483 }
2485 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) {
2486 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based "
2487 "off-channel TX");
2488 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX;
2489 }
2491 if (tb[NL80211_ATTR_ROAM_SUPPORT]) {
2492 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming");
2493 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION;
2494 }
2496 /* default to 5000 since early versions of mac80211 don't set it */
2497 capa->max_remain_on_chan = 5000;
2499 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD])
2500 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD;
2502 if (tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION])
2503 capa->max_remain_on_chan =
2504 nla_get_u32(tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]);
2506 if (auth_supported)
2507 capa->flags |= WPA_DRIVER_FLAGS_SME;
2508 else if (!connect_supported) {
2509 wpa_printf(MSG_INFO, "nl80211: Driver does not support "
2510 "authentication/association or connect commands");
2511 info->error = 1;
2512 }
2514 if (p2p_go_supported && p2p_client_supported)
2515 capa->flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE;
2516 if (p2p_concurrent) {
2517 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
2518 "interface (driver advertised support)");
2519 capa->flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
2520 capa->flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
2521 }
2523 if (tb[NL80211_ATTR_TDLS_SUPPORT]) {
2524 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported");
2525 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT;
2527 if (tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]) {
2528 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup");
2529 capa->flags |=
2530 WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP;
2531 }
2532 }
2534 if (tb[NL80211_ATTR_DEVICE_AP_SME])
2535 info->device_ap_sme = 1;
2537 if (tb[NL80211_ATTR_FEATURE_FLAGS]) {
2538 u32 flags = nla_get_u32(tb[NL80211_ATTR_FEATURE_FLAGS]);
2540 if (flags & NL80211_FEATURE_SK_TX_STATUS)
2541 info->data_tx_status = 1;
2542 }
2544 if (tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]) {
2545 int protocols =
2546 nla_get_u32(tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]);
2547 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response "
2548 "offload in AP mode");
2549 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD;
2550 capa->probe_resp_offloads =
2551 probe_resp_offload_support(protocols);
2552 }
2554 return NL_SKIP;
2555 }
2558 static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv,
2559 struct wiphy_info_data *info)
2560 {
2561 struct nl_msg *msg;
2563 os_memset(info, 0, sizeof(*info));
2564 info->capa = &drv->capa;
2566 msg = nlmsg_alloc();
2567 if (!msg)
2568 return -1;
2570 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY);
2572 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->first_bss.ifindex);
2574 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info) == 0)
2575 return 0;
2576 msg = NULL;
2577 nla_put_failure:
2578 nlmsg_free(msg);
2579 return -1;
2580 }
2583 static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
2584 {
2585 struct wiphy_info_data info;
2586 if (wpa_driver_nl80211_get_info(drv, &info))
2587 return -1;
2589 if (info.error)
2590 return -1;
2592 drv->has_capability = 1;
2593 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */
2594 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
2595 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
2596 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
2597 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
2598 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 |
2599 WPA_DRIVER_CAPA_ENC_WEP104 |
2600 WPA_DRIVER_CAPA_ENC_TKIP |
2601 WPA_DRIVER_CAPA_ENC_CCMP;
2602 drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
2603 WPA_DRIVER_AUTH_SHARED |
2604 WPA_DRIVER_AUTH_LEAP;
2606 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES;
2607 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE;
2608 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
2609 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS;
2611 drv->device_ap_sme = info.device_ap_sme;
2612 drv->poll_command_supported = info.poll_command_supported;
2613 drv->data_tx_status = info.data_tx_status;
2615 /*
2616 * If poll command is supported mac80211 is new enough to
2617 * have everything we need to not need monitor interfaces.
2618 */
2619 drv->use_monitor = !info.poll_command_supported;
2621 if (drv->device_ap_sme && drv->use_monitor) {
2622 /*
2623 * Non-mac80211 drivers may not support monitor interface.
2624 * Make sure we do not get stuck with incorrect capability here
2625 * by explicitly testing this.
2626 */
2627 if (!info.monitor_supported) {
2628 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor "
2629 "with device_ap_sme since no monitor mode "
2630 "support detected");
2631 drv->use_monitor = 0;
2632 }
2633 }
2635 /*
2636 * If we aren't going to use monitor interfaces, but the
2637 * driver doesn't support data TX status, we won't get TX
2638 * status for EAPOL frames.
2639 */
2640 if (!drv->use_monitor && !info.data_tx_status)
2641 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
2643 return 0;
2644 }
2647 #ifdef ANDROID
2648 static int android_genl_ctrl_resolve(struct nl_handle *handle,
2649 const char *name)
2650 {
2651 /*
2652 * Android ICS has very minimal genl_ctrl_resolve() implementation, so
2653 * need to work around that.
2654 */
2655 struct nl_cache *cache = NULL;
2656 struct genl_family *nl80211 = NULL;
2657 int id = -1;
2659 if (genl_ctrl_alloc_cache(handle, &cache) < 0) {
2660 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
2661 "netlink cache");
2662 goto fail;
2663 }
2665 nl80211 = genl_ctrl_search_by_name(cache, name);
2666 if (nl80211 == NULL)
2667 goto fail;
2669 id = genl_family_get_id(nl80211);
2671 fail:
2672 if (nl80211)
2673 genl_family_put(nl80211);
2674 if (cache)
2675 nl_cache_free(cache);
2677 return id;
2678 }
2679 #define genl_ctrl_resolve android_genl_ctrl_resolve
2680 #endif /* ANDROID */
2683 static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global)
2684 {
2685 int ret;
2687 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
2688 if (global->nl_cb == NULL) {
2689 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
2690 "callbacks");
2691 return -1;
2692 }
2694 global->nl = nl_create_handle(global->nl_cb, "nl");
2695 if (global->nl == NULL)
2696 goto err;
2698 global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211");
2699 if (global->nl80211_id < 0) {
2700 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not "
2701 "found");
2702 goto err;
2703 }
2705 global->nl_event = nl_create_handle(global->nl_cb, "event");
2706 if (global->nl_event == NULL)
2707 goto err;
2709 ret = nl_get_multicast_id(global, "nl80211", "scan");
2710 if (ret >= 0)
2711 ret = nl_socket_add_membership(global->nl_event, ret);
2712 if (ret < 0) {
2713 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
2714 "membership for scan events: %d (%s)",
2715 ret, strerror(-ret));
2716 goto err;
2717 }
2719 ret = nl_get_multicast_id(global, "nl80211", "mlme");
2720 if (ret >= 0)
2721 ret = nl_socket_add_membership(global->nl_event, ret);
2722 if (ret < 0) {
2723 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
2724 "membership for mlme events: %d (%s)",
2725 ret, strerror(-ret));
2726 goto err;
2727 }
2729 ret = nl_get_multicast_id(global, "nl80211", "regulatory");
2730 if (ret >= 0)
2731 ret = nl_socket_add_membership(global->nl_event, ret);
2732 if (ret < 0) {
2733 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast "
2734 "membership for regulatory events: %d (%s)",
2735 ret, strerror(-ret));
2736 /* Continue without regulatory events */
2737 }
2739 nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
2740 no_seq_check, NULL);
2741 nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
2742 process_global_event, global);
2744 eloop_register_read_sock(nl_socket_get_fd(global->nl_event),
2745 wpa_driver_nl80211_event_receive,
2746 global->nl_cb, global->nl_event);
2748 return 0;
2750 err:
2751 nl_destroy_handles(&global->nl_event);
2752 nl_destroy_handles(&global->nl);
2753 nl_cb_put(global->nl_cb);
2754 global->nl_cb = NULL;
2755 return -1;
2756 }
2759 static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv)
2760 {
2761 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
2762 if (!drv->nl_cb) {
2763 wpa_printf(MSG_ERROR, "nl80211: Failed to alloc cb struct");
2764 return -1;
2765 }
2767 nl_cb_set(drv->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
2768 no_seq_check, NULL);
2769 nl_cb_set(drv->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
2770 process_drv_event, drv);
2772 return 0;
2773 }
2776 static void wpa_driver_nl80211_rfkill_blocked(void *ctx)
2777 {
2778 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked");
2779 /*
2780 * This may be for any interface; use ifdown event to disable
2781 * interface.
2782 */
2783 }
2786 static void wpa_driver_nl80211_rfkill_unblocked(void *ctx)
2787 {
2788 struct wpa_driver_nl80211_data *drv = ctx;
2789 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked");
2790 if (linux_set_iface_flags(drv->global->ioctl_sock,
2791 drv->first_bss.ifname, 1)) {
2792 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP "
2793 "after rfkill unblock");
2794 return;
2795 }
2796 /* rtnetlink ifup handler will report interface as enabled */
2797 }
2800 static void nl80211_get_phy_name(struct wpa_driver_nl80211_data *drv)
2801 {
2802 /* Find phy (radio) to which this interface belongs */
2803 char buf[90], *pos;
2804 int f, rv;
2806 drv->phyname[0] = '\0';
2807 snprintf(buf, sizeof(buf) - 1, "/sys/class/net/%s/phy80211/name",
2808 drv->first_bss.ifname);
2809 f = open(buf, O_RDONLY);
2810 if (f < 0) {
2811 wpa_printf(MSG_DEBUG, "Could not open file %s: %s",
2812 buf, strerror(errno));
2813 return;
2814 }
2816 rv = read(f, drv->phyname, sizeof(drv->phyname) - 1);
2817 close(f);
2818 if (rv < 0) {
2819 wpa_printf(MSG_DEBUG, "Could not read file %s: %s",
2820 buf, strerror(errno));
2821 return;
2822 }
2824 drv->phyname[rv] = '\0';
2825 pos = os_strchr(drv->phyname, '\n');
2826 if (pos)
2827 *pos = '\0';
2828 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s",
2829 drv->first_bss.ifname, drv->phyname);
2830 }
2833 static void wpa_driver_nl80211_handle_eapol_tx_status(int sock,
2834 void *eloop_ctx,
2835 void *handle)
2836 {
2837 struct wpa_driver_nl80211_data *drv = eloop_ctx;
2838 u8 data[2048];
2839 struct msghdr msg;
2840 struct iovec entry;
2841 struct {
2842 struct cmsghdr cm;
2843 char control[512];
2844 } control;
2845 struct cmsghdr *cmsg;
2846 int res, found_ee = 0, found_wifi = 0, acked = 0;
2847 union wpa_event_data event;
2849 memset(&msg, 0, sizeof(msg));
2850 msg.msg_iov = &entry;
2851 msg.msg_iovlen = 1;
2852 entry.iov_base = data;
2853 entry.iov_len = sizeof(data);
2854 msg.msg_control = &control;
2855 msg.msg_controllen = sizeof(control);
2857 res = recvmsg(sock, &msg, MSG_ERRQUEUE);
2858 /* if error or not fitting 802.3 header, return */
2859 if (res < 14)
2860 return;
2862 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg))
2863 {
2864 if (cmsg->cmsg_level == SOL_SOCKET &&
2865 cmsg->cmsg_type == SCM_WIFI_STATUS) {
2866 int *ack;
2868 found_wifi = 1;
2869 ack = (void *)CMSG_DATA(cmsg);
2870 acked = *ack;
2871 }
2873 if (cmsg->cmsg_level == SOL_PACKET &&
2874 cmsg->cmsg_type == PACKET_TX_TIMESTAMP) {
2875 struct sock_extended_err *err =
2876 (struct sock_extended_err *)CMSG_DATA(cmsg);
2878 if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS)
2879 found_ee = 1;
2880 }
2881 }
2883 if (!found_ee || !found_wifi)
2884 return;
2886 memset(&event, 0, sizeof(event));
2887 event.eapol_tx_status.dst = data;
2888 event.eapol_tx_status.data = data + 14;
2889 event.eapol_tx_status.data_len = res - 14;
2890 event.eapol_tx_status.ack = acked;
2891 wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event);
2892 }
2895 static int nl80211_init_bss(struct i802_bss *bss)
2896 {
2897 bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
2898 if (!bss->nl_cb)
2899 return -1;
2901 nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
2902 no_seq_check, NULL);
2903 nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
2904 process_bss_event, bss);
2906 return 0;
2907 }
2910 static void nl80211_destroy_bss(struct i802_bss *bss)
2911 {
2912 nl_cb_put(bss->nl_cb);
2913 bss->nl_cb = NULL;
2914 }
2917 /**
2918 * wpa_driver_nl80211_init - Initialize nl80211 driver interface
2919 * @ctx: context to be used when calling wpa_supplicant functions,
2920 * e.g., wpa_supplicant_event()
2921 * @ifname: interface name, e.g., wlan0
2922 * @global_priv: private driver global data from global_init()
2923 * Returns: Pointer to private data, %NULL on failure
2924 */
2925 static void * wpa_driver_nl80211_init(void *ctx, const char *ifname,
2926 void *global_priv)
2927 {
2928 struct wpa_driver_nl80211_data *drv;
2929 struct rfkill_config *rcfg;
2930 struct i802_bss *bss;
2932 if (global_priv == NULL)
2933 return NULL;
2934 drv = os_zalloc(sizeof(*drv));
2935 if (drv == NULL)
2936 return NULL;
2937 drv->global = global_priv;
2938 drv->ctx = ctx;
2939 bss = &drv->first_bss;
2940 bss->drv = drv;
2941 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname));
2942 drv->monitor_ifidx = -1;
2943 drv->monitor_sock = -1;
2944 drv->eapol_tx_sock = -1;
2945 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
2947 if (wpa_driver_nl80211_init_nl(drv)) {
2948 os_free(drv);
2949 return NULL;
2950 }
2952 if (nl80211_init_bss(bss))
2953 goto failed;
2955 nl80211_get_phy_name(drv);
2957 rcfg = os_zalloc(sizeof(*rcfg));
2958 if (rcfg == NULL)
2959 goto failed;
2960 rcfg->ctx = drv;
2961 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname));
2962 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked;
2963 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked;
2964 drv->rfkill = rfkill_init(rcfg);
2965 if (drv->rfkill == NULL) {
2966 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available");
2967 os_free(rcfg);
2968 }
2970 if (wpa_driver_nl80211_finish_drv_init(drv))
2971 goto failed;
2973 drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0);
2974 if (drv->eapol_tx_sock < 0)
2975 goto failed;
2977 if (drv->data_tx_status) {
2978 int enabled = 1;
2980 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS,
2981 &enabled, sizeof(enabled)) < 0) {
2982 wpa_printf(MSG_DEBUG,
2983 "nl80211: wifi status sockopt failed\n");
2984 drv->data_tx_status = 0;
2985 if (!drv->use_monitor)
2986 drv->capa.flags &=
2987 ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
2988 } else {
2989 eloop_register_read_sock(drv->eapol_tx_sock,
2990 wpa_driver_nl80211_handle_eapol_tx_status,
2991 drv, NULL);
2992 }
2993 }
2995 if (drv->global) {
2996 dl_list_add(&drv->global->interfaces, &drv->list);
2997 drv->in_interface_list = 1;
2998 }
3000 return bss;
3002 failed:
3003 wpa_driver_nl80211_deinit(bss);
3004 return NULL;
3005 }
3008 static int nl80211_register_frame(struct i802_bss *bss,
3009 struct nl_handle *nl_handle,
3010 u16 type, const u8 *match, size_t match_len)
3011 {
3012 struct wpa_driver_nl80211_data *drv = bss->drv;
3013 struct nl_msg *msg;
3014 int ret = -1;
3016 msg = nlmsg_alloc();
3017 if (!msg)
3018 return -1;
3020 wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x nl_handle=%p",
3021 type, nl_handle);
3022 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match",
3023 match, match_len);
3025 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION);
3027 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
3028 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type);
3029 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match);
3031 ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL);
3032 msg = NULL;
3033 if (ret) {
3034 wpa_printf(MSG_DEBUG, "nl80211: Register frame command "
3035 "failed (type=%u): ret=%d (%s)",
3036 type, ret, strerror(-ret));
3037 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match",
3038 match, match_len);
3039 goto nla_put_failure;
3040 }
3041 ret = 0;
3042 nla_put_failure:
3043 nlmsg_free(msg);
3044 return ret;
3045 }
3048 static int nl80211_alloc_mgmt_handle(struct i802_bss *bss)
3049 {
3050 struct wpa_driver_nl80211_data *drv = bss->drv;
3052 if (bss->nl_mgmt) {
3053 wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting "
3054 "already on! (nl_mgmt=%p)", bss->nl_mgmt);
3055 return -1;
3056 }
3058 bss->nl_mgmt = nl_create_handle(drv->nl_cb, "mgmt");
3059 if (bss->nl_mgmt == NULL)
3060 return -1;
3062 eloop_register_read_sock(nl_socket_get_fd(bss->nl_mgmt),
3063 wpa_driver_nl80211_event_receive, bss->nl_cb,
3064 bss->nl_mgmt);
3066 return 0;
3067 }
3070 static int nl80211_register_action_frame(struct i802_bss *bss,
3071 const u8 *match, size_t match_len)
3072 {
3073 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4);
3074 return nl80211_register_frame(bss, bss->nl_mgmt,
3075 type, match, match_len);
3076 }
3079 static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss)
3080 {
3081 struct wpa_driver_nl80211_data *drv = bss->drv;
3083 if (nl80211_alloc_mgmt_handle(bss))
3084 return -1;
3085 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP "
3086 "handle %p", bss->nl_mgmt);
3088 #if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING)
3089 /* GAS Initial Request */
3090 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0)
3091 return -1;
3092 /* GAS Initial Response */
3093 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0)
3094 return -1;
3095 /* GAS Comeback Request */
3096 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0)
3097 return -1;
3098 /* GAS Comeback Response */
3099 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0)
3100 return -1;
3101 #endif /* CONFIG_P2P || CONFIG_INTERWORKING */
3102 #ifdef CONFIG_P2P
3103 /* P2P Public Action */
3104 if (nl80211_register_action_frame(bss,
3105 (u8 *) "\x04\x09\x50\x6f\x9a\x09",
3106 6) < 0)
3107 return -1;
3108 /* P2P Action */
3109 if (nl80211_register_action_frame(bss,
3110 (u8 *) "\x7f\x50\x6f\x9a\x09",
3111 5) < 0)
3112 return -1;
3113 #endif /* CONFIG_P2P */
3114 #ifdef CONFIG_IEEE80211W
3115 /* SA Query Response */
3116 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0)
3117 return -1;
3118 #endif /* CONFIG_IEEE80211W */
3119 #ifdef CONFIG_TDLS
3120 if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) {
3121 /* TDLS Discovery Response */
3122 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) <
3123 0)
3124 return -1;
3125 }
3126 #endif /* CONFIG_TDLS */
3128 /* FT Action frames */
3129 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0)
3130 return -1;
3131 else
3132 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT |
3133 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK;
3135 /* WNM - BSS Transition Management Request */
3136 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0)
3137 return -1;
3139 return 0;
3140 }
3143 static int nl80211_register_spurious_class3(struct i802_bss *bss)
3144 {
3145 struct wpa_driver_nl80211_data *drv = bss->drv;
3146 struct nl_msg *msg;
3147 int ret = -1;
3149 msg = nlmsg_alloc();
3150 if (!msg)
3151 return -1;
3153 nl80211_cmd(drv, msg, 0, NL80211_CMD_UNEXPECTED_FRAME);
3155 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
3157 ret = send_and_recv(drv->global, bss->nl_mgmt, msg, NULL, NULL);
3158 msg = NULL;
3159 if (ret) {
3160 wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 "
3161 "failed: ret=%d (%s)",
3162 ret, strerror(-ret));
3163 goto nla_put_failure;
3164 }
3165 ret = 0;
3166 nla_put_failure:
3167 nlmsg_free(msg);
3168 return ret;
3169 }
3172 static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss)
3173 {
3174 static const int stypes[] = {
3175 WLAN_FC_STYPE_AUTH,
3176 WLAN_FC_STYPE_ASSOC_REQ,
3177 WLAN_FC_STYPE_REASSOC_REQ,
3178 WLAN_FC_STYPE_DISASSOC,
3179 WLAN_FC_STYPE_DEAUTH,
3180 WLAN_FC_STYPE_ACTION,
3181 WLAN_FC_STYPE_PROBE_REQ,
3182 /* Beacon doesn't work as mac80211 doesn't currently allow
3183 * it, but it wouldn't really be the right thing anyway as
3184 * it isn't per interface ... maybe just dump the scan
3185 * results periodically for OLBC?
3186 */
3187 // WLAN_FC_STYPE_BEACON,
3188 };
3189 unsigned int i;
3191 if (nl80211_alloc_mgmt_handle(bss))
3192 return -1;
3193 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP "
3194 "handle %p", bss->nl_mgmt);
3196 for (i = 0; i < sizeof(stypes) / sizeof(stypes[0]); i++) {
3197 if (nl80211_register_frame(bss, bss->nl_mgmt,
3198 (WLAN_FC_TYPE_MGMT << 2) |
3199 (stypes[i] << 4),
3200 NULL, 0) < 0) {
3201 goto out_err;
3202 }
3203 }
3205 if (nl80211_register_spurious_class3(bss))
3206 goto out_err;
3208 if (nl80211_get_wiphy_data_ap(bss) == NULL)
3209 goto out_err;
3211 return 0;
3213 out_err:
3214 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt));
3215 nl_destroy_handles(&bss->nl_mgmt);
3216 return -1;
3217 }
3220 static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss)
3221 {
3222 if (nl80211_alloc_mgmt_handle(bss))
3223 return -1;
3224 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP "
3225 "handle %p (device SME)", bss->nl_mgmt);
3227 if (nl80211_register_frame(bss, bss->nl_mgmt,
3228 (WLAN_FC_TYPE_MGMT << 2) |
3229 (WLAN_FC_STYPE_ACTION << 4),
3230 NULL, 0) < 0)
3231 goto out_err;
3233 return 0;
3235 out_err:
3236 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt));
3237 nl_destroy_handles(&bss->nl_mgmt);
3238 return -1;
3239 }
3242 static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason)
3243 {
3244 if (bss->nl_mgmt == NULL)
3245 return;
3246 wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p "
3247 "(%s)", bss->nl_mgmt, reason);
3248 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt));
3249 nl_destroy_handles(&bss->nl_mgmt);
3251 nl80211_put_wiphy_data_ap(bss);
3252 }
3255 static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx)
3256 {
3257 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL);
3258 }
3261 static int
3262 wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv)
3263 {
3264 struct i802_bss *bss = &drv->first_bss;
3265 int send_rfkill_event = 0;
3267 drv->ifindex = if_nametoindex(bss->ifname);
3268 drv->first_bss.ifindex = drv->ifindex;
3270 #ifndef HOSTAPD
3271 /*
3272 * Make sure the interface starts up in station mode unless this is a
3273 * dynamically added interface (e.g., P2P) that was already configured
3274 * with proper iftype.
3275 */
3276 if (drv->ifindex != drv->global->if_add_ifindex &&
3277 wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION) < 0) {
3278 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver to "
3279 "use managed mode");
3280 return -1;
3281 }
3283 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) {
3284 if (rfkill_is_blocked(drv->rfkill)) {
3285 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable "
3286 "interface '%s' due to rfkill",
3287 bss->ifname);
3288 drv->if_disabled = 1;
3289 send_rfkill_event = 1;
3290 } else {
3291 wpa_printf(MSG_ERROR, "nl80211: Could not set "
3292 "interface '%s' UP", bss->ifname);
3293 return -1;
3294 }
3295 }
3297 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex,
3298 1, IF_OPER_DORMANT);
3299 #endif /* HOSTAPD */
3301 if (wpa_driver_nl80211_capa(drv))
3302 return -1;
3304 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
3305 bss->addr))
3306 return -1;
3308 if (send_rfkill_event) {
3309 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill,
3310 drv, drv->ctx);
3311 }
3313 return 0;
3314 }
3317 static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv)
3318 {
3319 struct nl_msg *msg;
3321 msg = nlmsg_alloc();
3322 if (!msg)
3323 return -ENOMEM;
3325 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON);
3326 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3328 return send_and_recv_msgs(drv, msg, NULL, NULL);
3329 nla_put_failure:
3330 nlmsg_free(msg);
3331 return -ENOBUFS;
3332 }
3335 /**
3336 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface
3337 * @priv: Pointer to private nl80211 data from wpa_driver_nl80211_init()
3338 *
3339 * Shut down driver interface and processing of driver events. Free
3340 * private data buffer if one was allocated in wpa_driver_nl80211_init().
3341 */
3342 static void wpa_driver_nl80211_deinit(void *priv)
3343 {
3344 struct i802_bss *bss = priv;
3345 struct wpa_driver_nl80211_data *drv = bss->drv;
3347 if (drv->data_tx_status)
3348 eloop_unregister_read_sock(drv->eapol_tx_sock);
3349 if (drv->eapol_tx_sock >= 0)
3350 close(drv->eapol_tx_sock);
3352 if (bss->nl_preq)
3353 wpa_driver_nl80211_probe_req_report(bss, 0);
3354 if (bss->added_if_into_bridge) {
3355 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname,
3356 bss->ifname) < 0)
3357 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
3358 "interface %s from bridge %s: %s",
3359 bss->ifname, bss->brname, strerror(errno));
3360 }
3361 if (bss->added_bridge) {
3362 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0)
3363 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
3364 "bridge %s: %s",
3365 bss->brname, strerror(errno));
3366 }
3368 nl80211_remove_monitor_interface(drv);
3370 if (is_ap_interface(drv->nlmode))
3371 wpa_driver_nl80211_del_beacon(drv);
3373 #ifdef HOSTAPD
3374 if (drv->last_freq_ht) {
3375 /* Clear HT flags from the driver */
3376 struct hostapd_freq_params freq;
3377 os_memset(&freq, 0, sizeof(freq));
3378 freq.freq = drv->last_freq;
3379 i802_set_freq(priv, &freq);
3380 }
3382 if (drv->eapol_sock >= 0) {
3383 eloop_unregister_read_sock(drv->eapol_sock);
3384 close(drv->eapol_sock);
3385 }
3387 if (drv->if_indices != drv->default_if_indices)
3388 os_free(drv->if_indices);
3389 #endif /* HOSTAPD */
3391 if (drv->disabled_11b_rates)
3392 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
3394 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0,
3395 IF_OPER_UP);
3396 rfkill_deinit(drv->rfkill);
3398 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
3400 (void) linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0);
3401 wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION);
3402 nl80211_mgmt_unsubscribe(bss, "deinit");
3404 nl_cb_put(drv->nl_cb);
3406 nl80211_destroy_bss(&drv->first_bss);
3408 os_free(drv->filter_ssids);
3410 os_free(drv->auth_ie);
3412 if (drv->in_interface_list)
3413 dl_list_del(&drv->list);
3415 os_free(drv);
3416 }
3419 /**
3420 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion
3421 * @eloop_ctx: Driver private data
3422 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init()
3423 *
3424 * This function can be used as registered timeout when starting a scan to
3425 * generate a scan completed event if the driver does not report this.
3426 */
3427 static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx)
3428 {
3429 struct wpa_driver_nl80211_data *drv = eloop_ctx;
3430 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) {
3431 wpa_driver_nl80211_set_mode(&drv->first_bss,
3432 drv->ap_scan_as_station);
3433 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
3434 }
3435 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results");
3436 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL);
3437 }
3440 /**
3441 * wpa_driver_nl80211_scan - Request the driver to initiate scan
3442 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
3443 * @params: Scan parameters
3444 * Returns: 0 on success, -1 on failure
3445 */
3446 static int wpa_driver_nl80211_scan(void *priv,
3447 struct wpa_driver_scan_params *params)
3448 {
3449 struct i802_bss *bss = priv;
3450 struct wpa_driver_nl80211_data *drv = bss->drv;
3451 int ret = 0, timeout;
3452 struct nl_msg *msg, *ssids, *freqs, *rates;
3453 size_t i;
3455 drv->scan_for_auth = 0;
3457 msg = nlmsg_alloc();
3458 ssids = nlmsg_alloc();
3459 freqs = nlmsg_alloc();
3460 rates = nlmsg_alloc();
3461 if (!msg || !ssids || !freqs || !rates) {
3462 nlmsg_free(msg);
3463 nlmsg_free(ssids);
3464 nlmsg_free(freqs);
3465 nlmsg_free(rates);
3466 return -1;
3467 }
3469 os_free(drv->filter_ssids);
3470 drv->filter_ssids = params->filter_ssids;
3471 params->filter_ssids = NULL;
3472 drv->num_filter_ssids = params->num_filter_ssids;
3474 nl80211_cmd(drv, msg, 0, NL80211_CMD_TRIGGER_SCAN);
3476 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3478 for (i = 0; i < params->num_ssids; i++) {
3479 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID",
3480 params->ssids[i].ssid,
3481 params->ssids[i].ssid_len);
3482 NLA_PUT(ssids, i + 1, params->ssids[i].ssid_len,
3483 params->ssids[i].ssid);
3484 }
3485 if (params->num_ssids)
3486 nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids);
3488 if (params->extra_ies) {
3489 wpa_hexdump(MSG_MSGDUMP, "nl80211: Scan extra IEs",
3490 params->extra_ies, params->extra_ies_len);
3491 NLA_PUT(msg, NL80211_ATTR_IE, params->extra_ies_len,
3492 params->extra_ies);
3493 }
3495 if (params->freqs) {
3496 for (i = 0; params->freqs[i]; i++) {
3497 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u "
3498 "MHz", params->freqs[i]);
3499 NLA_PUT_U32(freqs, i + 1, params->freqs[i]);
3500 }
3501 nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES, freqs);
3502 }
3504 if (params->p2p_probe) {
3505 wpa_printf(MSG_DEBUG, "nl80211: P2P probe - mask SuppRates");
3507 /*
3508 * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates
3509 * by masking out everything else apart from the OFDM rates 6,
3510 * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz
3511 * rates are left enabled.
3512 */
3513 NLA_PUT(rates, NL80211_BAND_2GHZ, 8,
3514 "\x0c\x12\x18\x24\x30\x48\x60\x6c");
3515 nla_put_nested(msg, NL80211_ATTR_SCAN_SUPP_RATES, rates);
3517 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE);
3518 }
3520 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3521 msg = NULL;
3522 if (ret) {
3523 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d "
3524 "(%s)", ret, strerror(-ret));
3525 #ifdef HOSTAPD
3526 if (is_ap_interface(drv->nlmode)) {
3527 /*
3528 * mac80211 does not allow scan requests in AP mode, so
3529 * try to do this in station mode.
3530 */
3531 if (wpa_driver_nl80211_set_mode(
3532 bss, NL80211_IFTYPE_STATION))
3533 goto nla_put_failure;
3535 if (wpa_driver_nl80211_scan(drv, params)) {
3536 wpa_driver_nl80211_set_mode(bss, drv->nlmode);
3537 goto nla_put_failure;
3538 }
3540 /* Restore AP mode when processing scan results */
3541 drv->ap_scan_as_station = drv->nlmode;
3542 ret = 0;
3543 } else
3544 goto nla_put_failure;
3545 #else /* HOSTAPD */
3546 goto nla_put_failure;
3547 #endif /* HOSTAPD */
3548 }
3550 /* Not all drivers generate "scan completed" wireless event, so try to
3551 * read results after a timeout. */
3552 timeout = 10;
3553 if (drv->scan_complete_events) {
3554 /*
3555 * The driver seems to deliver events to notify when scan is
3556 * complete, so use longer timeout to avoid race conditions
3557 * with scanning and following association request.
3558 */
3559 timeout = 30;
3560 }
3561 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d "
3562 "seconds", ret, timeout);
3563 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
3564 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout,
3565 drv, drv->ctx);
3567 nla_put_failure:
3568 nlmsg_free(ssids);
3569 nlmsg_free(msg);
3570 nlmsg_free(freqs);
3571 nlmsg_free(rates);
3572 return ret;
3573 }
3576 /**
3577 * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan
3578 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
3579 * @params: Scan parameters
3580 * @interval: Interval between scan cycles in milliseconds
3581 * Returns: 0 on success, -1 on failure or if not supported
3582 */
3583 static int wpa_driver_nl80211_sched_scan(void *priv,
3584 struct wpa_driver_scan_params *params,
3585 u32 interval)
3586 {
3587 struct i802_bss *bss = priv;
3588 struct wpa_driver_nl80211_data *drv = bss->drv;
3589 int ret = 0;
3590 struct nl_msg *msg, *ssids, *freqs, *match_set_ssid, *match_sets;
3591 size_t i;
3593 #ifdef ANDROID
3594 if (!drv->capa.sched_scan_supported)
3595 return android_pno_start(bss, params);
3596 #endif /* ANDROID */
3598 msg = nlmsg_alloc();
3599 ssids = nlmsg_alloc();
3600 freqs = nlmsg_alloc();
3601 if (!msg || !ssids || !freqs) {
3602 nlmsg_free(msg);
3603 nlmsg_free(ssids);
3604 nlmsg_free(freqs);
3605 return -1;
3606 }
3608 os_free(drv->filter_ssids);
3609 drv->filter_ssids = params->filter_ssids;
3610 params->filter_ssids = NULL;
3611 drv->num_filter_ssids = params->num_filter_ssids;
3613 nl80211_cmd(drv, msg, 0, NL80211_CMD_START_SCHED_SCAN);
3615 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3617 NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval);
3619 if (drv->num_filter_ssids &&
3620 (int) drv->num_filter_ssids <= drv->capa.max_match_sets) {
3621 match_sets = nlmsg_alloc();
3623 for (i = 0; i < drv->num_filter_ssids; i++) {
3624 wpa_hexdump_ascii(MSG_MSGDUMP,
3625 "nl80211: Sched scan filter SSID",
3626 drv->filter_ssids[i].ssid,
3627 drv->filter_ssids[i].ssid_len);
3629 match_set_ssid = nlmsg_alloc();
3630 nla_put(match_set_ssid,
3631 NL80211_ATTR_SCHED_SCAN_MATCH_SSID,
3632 drv->filter_ssids[i].ssid_len,
3633 drv->filter_ssids[i].ssid);
3635 nla_put_nested(match_sets, i + 1, match_set_ssid);
3637 nlmsg_free(match_set_ssid);
3638 }
3640 nla_put_nested(msg, NL80211_ATTR_SCHED_SCAN_MATCH,
3641 match_sets);
3642 nlmsg_free(match_sets);
3643 }
3645 for (i = 0; i < params->num_ssids; i++) {
3646 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Sched scan SSID",
3647 params->ssids[i].ssid,
3648 params->ssids[i].ssid_len);
3649 NLA_PUT(ssids, i + 1, params->ssids[i].ssid_len,
3650 params->ssids[i].ssid);
3651 }
3652 if (params->num_ssids)
3653 nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids);
3655 if (params->extra_ies) {
3656 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Sched scan extra IEs",
3657 params->extra_ies, params->extra_ies_len);
3658 NLA_PUT(msg, NL80211_ATTR_IE, params->extra_ies_len,
3659 params->extra_ies);
3660 }
3662 if (params->freqs) {
3663 for (i = 0; params->freqs[i]; i++) {
3664 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u "
3665 "MHz", params->freqs[i]);
3666 NLA_PUT_U32(freqs, i + 1, params->freqs[i]);
3667 }
3668 nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES, freqs);
3669 }
3671 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3673 /* TODO: if we get an error here, we should fall back to normal scan */
3675 msg = NULL;
3676 if (ret) {
3677 wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: "
3678 "ret=%d (%s)", ret, strerror(-ret));
3679 goto nla_put_failure;
3680 }
3682 wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - "
3683 "scan interval %d msec", ret, interval);
3685 nla_put_failure:
3686 nlmsg_free(ssids);
3687 nlmsg_free(msg);
3688 nlmsg_free(freqs);
3689 return ret;
3690 }
3693 /**
3694 * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan
3695 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
3696 * Returns: 0 on success, -1 on failure or if not supported
3697 */
3698 static int wpa_driver_nl80211_stop_sched_scan(void *priv)
3699 {
3700 struct i802_bss *bss = priv;
3701 struct wpa_driver_nl80211_data *drv = bss->drv;
3702 int ret = 0;
3703 struct nl_msg *msg;
3705 #ifdef ANDROID
3706 if (!drv->capa.sched_scan_supported)
3707 return android_pno_stop(bss);
3708 #endif /* ANDROID */
3710 msg = nlmsg_alloc();
3711 if (!msg)
3712 return -1;
3714 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN);
3716 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3718 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3719 msg = NULL;
3720 if (ret) {
3721 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: "
3722 "ret=%d (%s)", ret, strerror(-ret));
3723 goto nla_put_failure;
3724 }
3726 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret);
3728 nla_put_failure:
3729 nlmsg_free(msg);
3730 return ret;
3731 }
3734 static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie)
3735 {
3736 const u8 *end, *pos;
3738 if (ies == NULL)
3739 return NULL;
3741 pos = ies;
3742 end = ies + ies_len;
3744 while (pos + 1 < end) {
3745 if (pos + 2 + pos[1] > end)
3746 break;
3747 if (pos[0] == ie)
3748 return pos;
3749 pos += 2 + pos[1];
3750 }
3752 return NULL;
3753 }
3756 static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv,
3757 const u8 *ie, size_t ie_len)
3758 {
3759 const u8 *ssid;
3760 size_t i;
3762 if (drv->filter_ssids == NULL)
3763 return 0;
3765 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID);
3766 if (ssid == NULL)
3767 return 1;
3769 for (i = 0; i < drv->num_filter_ssids; i++) {
3770 if (ssid[1] == drv->filter_ssids[i].ssid_len &&
3771 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) ==
3772 0)
3773 return 0;
3774 }
3776 return 1;
3777 }
3780 static int bss_info_handler(struct nl_msg *msg, void *arg)
3781 {
3782 struct nlattr *tb[NL80211_ATTR_MAX + 1];
3783 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3784 struct nlattr *bss[NL80211_BSS_MAX + 1];
3785 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
3786 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC },
3787 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 },
3788 [NL80211_BSS_TSF] = { .type = NLA_U64 },
3789 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 },
3790 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 },
3791 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC },
3792 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 },
3793 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 },
3794 [NL80211_BSS_STATUS] = { .type = NLA_U32 },
3795 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 },
3796 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC },
3797 };
3798 struct nl80211_bss_info_arg *_arg = arg;
3799 struct wpa_scan_results *res = _arg->res;
3800 struct wpa_scan_res **tmp;
3801 struct wpa_scan_res *r;
3802 const u8 *ie, *beacon_ie;
3803 size_t ie_len, beacon_ie_len;
3804 u8 *pos;
3805 size_t i;
3807 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3808 genlmsg_attrlen(gnlh, 0), NULL);
3809 if (!tb[NL80211_ATTR_BSS])
3810 return NL_SKIP;
3811 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS],
3812 bss_policy))
3813 return NL_SKIP;
3814 if (bss[NL80211_BSS_STATUS]) {
3815 enum nl80211_bss_status status;
3816 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
3817 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
3818 bss[NL80211_BSS_FREQUENCY]) {
3819 _arg->assoc_freq =
3820 nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
3821 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz",
3822 _arg->assoc_freq);
3823 }
3824 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
3825 bss[NL80211_BSS_BSSID]) {
3826 os_memcpy(_arg->assoc_bssid,
3827 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN);
3828 wpa_printf(MSG_DEBUG, "nl80211: Associated with "
3829 MACSTR, MAC2STR(_arg->assoc_bssid));
3830 }
3831 }
3832 if (!res)
3833 return NL_SKIP;
3834 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) {
3835 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
3836 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
3837 } else {
3838 ie = NULL;
3839 ie_len = 0;
3840 }
3841 if (bss[NL80211_BSS_BEACON_IES]) {
3842 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]);
3843 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]);
3844 } else {
3845 beacon_ie = NULL;
3846 beacon_ie_len = 0;
3847 }
3849 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie,
3850 ie ? ie_len : beacon_ie_len))
3851 return NL_SKIP;
3853 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len);
3854 if (r == NULL)
3855 return NL_SKIP;
3856 if (bss[NL80211_BSS_BSSID])
3857 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]),
3858 ETH_ALEN);
3859 if (bss[NL80211_BSS_FREQUENCY])
3860 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
3861 if (bss[NL80211_BSS_BEACON_INTERVAL])
3862 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]);
3863 if (bss[NL80211_BSS_CAPABILITY])
3864 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]);
3865 r->flags |= WPA_SCAN_NOISE_INVALID;
3866 if (bss[NL80211_BSS_SIGNAL_MBM]) {
3867 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]);
3868 r->level /= 100; /* mBm to dBm */
3869 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID;
3870 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) {
3871 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]);
3872 r->flags |= WPA_SCAN_QUAL_INVALID;
3873 } else
3874 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID;
3875 if (bss[NL80211_BSS_TSF])
3876 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]);
3877 if (bss[NL80211_BSS_SEEN_MS_AGO])
3878 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]);
3879 r->ie_len = ie_len;
3880 pos = (u8 *) (r + 1);
3881 if (ie) {
3882 os_memcpy(pos, ie, ie_len);
3883 pos += ie_len;
3884 }
3885 r->beacon_ie_len = beacon_ie_len;
3886 if (beacon_ie)
3887 os_memcpy(pos, beacon_ie, beacon_ie_len);
3889 if (bss[NL80211_BSS_STATUS]) {
3890 enum nl80211_bss_status status;
3891 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
3892 switch (status) {
3893 case NL80211_BSS_STATUS_AUTHENTICATED:
3894 r->flags |= WPA_SCAN_AUTHENTICATED;
3895 break;
3896 case NL80211_BSS_STATUS_ASSOCIATED:
3897 r->flags |= WPA_SCAN_ASSOCIATED;
3898 break;
3899 default:
3900 break;
3901 }
3902 }
3904 /*
3905 * cfg80211 maintains separate BSS table entries for APs if the same
3906 * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does
3907 * not use frequency as a separate key in the BSS table, so filter out
3908 * duplicated entries. Prefer associated BSS entry in such a case in
3909 * order to get the correct frequency into the BSS table.
3910 */
3911 for (i = 0; i < res->num; i++) {
3912 const u8 *s1, *s2;
3913 if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0)
3914 continue;
3916 s1 = nl80211_get_ie((u8 *) (res->res[i] + 1),
3917 res->res[i]->ie_len, WLAN_EID_SSID);
3918 s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID);
3919 if (s1 == NULL || s2 == NULL || s1[1] != s2[1] ||
3920 os_memcmp(s1, s2, 2 + s1[1]) != 0)
3921 continue;
3923 /* Same BSSID,SSID was already included in scan results */
3924 wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result "
3925 "for " MACSTR, MAC2STR(r->bssid));
3927 if ((r->flags & WPA_SCAN_ASSOCIATED) &&
3928 !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) {
3929 os_free(res->res[i]);
3930 res->res[i] = r;
3931 } else
3932 os_free(r);
3933 return NL_SKIP;
3934 }
3936 tmp = os_realloc(res->res,
3937 (res->num + 1) * sizeof(struct wpa_scan_res *));
3938 if (tmp == NULL) {
3939 os_free(r);
3940 return NL_SKIP;
3941 }
3942 tmp[res->num++] = r;
3943 res->res = tmp;
3945 return NL_SKIP;
3946 }
3949 static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv,
3950 const u8 *addr)
3951 {
3952 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
3953 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state "
3954 "mismatch (" MACSTR ")", MAC2STR(addr));
3955 wpa_driver_nl80211_mlme(drv, addr,
3956 NL80211_CMD_DEAUTHENTICATE,
3957 WLAN_REASON_PREV_AUTH_NOT_VALID, 1);
3958 }
3959 }
3962 static void wpa_driver_nl80211_check_bss_status(
3963 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res)
3964 {
3965 size_t i;
3967 for (i = 0; i < res->num; i++) {
3968 struct wpa_scan_res *r = res->res[i];
3969 if (r->flags & WPA_SCAN_AUTHENTICATED) {
3970 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
3971 "indicates BSS status with " MACSTR
3972 " as authenticated",
3973 MAC2STR(r->bssid));
3974 if (is_sta_interface(drv->nlmode) &&
3975 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 &&
3976 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) !=
3977 0) {
3978 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID"
3979 " in local state (auth=" MACSTR
3980 " assoc=" MACSTR ")",
3981 MAC2STR(drv->auth_bssid),
3982 MAC2STR(drv->bssid));
3983 clear_state_mismatch(drv, r->bssid);
3984 }
3985 }
3987 if (r->flags & WPA_SCAN_ASSOCIATED) {
3988 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
3989 "indicate BSS status with " MACSTR
3990 " as associated",
3991 MAC2STR(r->bssid));
3992 if (is_sta_interface(drv->nlmode) &&
3993 !drv->associated) {
3994 wpa_printf(MSG_DEBUG, "nl80211: Local state "
3995 "(not associated) does not match "
3996 "with BSS state");
3997 clear_state_mismatch(drv, r->bssid);
3998 } else if (is_sta_interface(drv->nlmode) &&
3999 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) !=
4000 0) {
4001 wpa_printf(MSG_DEBUG, "nl80211: Local state "
4002 "(associated with " MACSTR ") does "
4003 "not match with BSS state",
4004 MAC2STR(drv->bssid));
4005 clear_state_mismatch(drv, r->bssid);
4006 clear_state_mismatch(drv, drv->bssid);
4007 }
4008 }
4009 }
4010 }
4013 static struct wpa_scan_results *
4014 nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv)
4015 {
4016 struct nl_msg *msg;
4017 struct wpa_scan_results *res;
4018 int ret;
4019 struct nl80211_bss_info_arg arg;
4021 res = os_zalloc(sizeof(*res));
4022 if (res == NULL)
4023 return NULL;
4024 msg = nlmsg_alloc();
4025 if (!msg)
4026 goto nla_put_failure;
4028 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
4029 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4031 arg.drv = drv;
4032 arg.res = res;
4033 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
4034 msg = NULL;
4035 if (ret == 0) {
4036 wpa_printf(MSG_DEBUG, "nl80211: Received scan results (%lu "
4037 "BSSes)", (unsigned long) res->num);
4038 nl80211_get_noise_for_scan_results(drv, res);
4039 return res;
4040 }
4041 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
4042 "(%s)", ret, strerror(-ret));
4043 nla_put_failure:
4044 nlmsg_free(msg);
4045 wpa_scan_results_free(res);
4046 return NULL;
4047 }
4050 /**
4051 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results
4052 * @priv: Pointer to private wext data from wpa_driver_nl80211_init()
4053 * Returns: Scan results on success, -1 on failure
4054 */
4055 static struct wpa_scan_results *
4056 wpa_driver_nl80211_get_scan_results(void *priv)
4057 {
4058 struct i802_bss *bss = priv;
4059 struct wpa_driver_nl80211_data *drv = bss->drv;
4060 struct wpa_scan_results *res;
4062 res = nl80211_get_scan_results(drv);
4063 if (res)
4064 wpa_driver_nl80211_check_bss_status(drv, res);
4065 return res;
4066 }
4069 static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv)
4070 {
4071 struct wpa_scan_results *res;
4072 size_t i;
4074 res = nl80211_get_scan_results(drv);
4075 if (res == NULL) {
4076 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results");
4077 return;
4078 }
4080 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump");
4081 for (i = 0; i < res->num; i++) {
4082 struct wpa_scan_res *r = res->res[i];
4083 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s",
4084 (int) i, (int) res->num, MAC2STR(r->bssid),
4085 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "",
4086 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : "");
4087 }
4089 wpa_scan_results_free(res);
4090 }
4093 static int wpa_driver_nl80211_set_key(const char *ifname, void *priv,
4094 enum wpa_alg alg, const u8 *addr,
4095 int key_idx, int set_tx,
4096 const u8 *seq, size_t seq_len,
4097 const u8 *key, size_t key_len)
4098 {
4099 struct i802_bss *bss = priv;
4100 struct wpa_driver_nl80211_data *drv = bss->drv;
4101 int ifindex = if_nametoindex(ifname);
4102 struct nl_msg *msg;
4103 int ret;
4105 wpa_printf(MSG_DEBUG, "%s: ifindex=%d alg=%d addr=%p key_idx=%d "
4106 "set_tx=%d seq_len=%lu key_len=%lu",
4107 __func__, ifindex, alg, addr, key_idx, set_tx,
4108 (unsigned long) seq_len, (unsigned long) key_len);
4109 #ifdef CONFIG_TDLS
4110 if (key_idx == -1)
4111 key_idx = 0;
4112 #endif /* CONFIG_TDLS */
4114 msg = nlmsg_alloc();
4115 if (!msg)
4116 return -ENOMEM;
4118 if (alg == WPA_ALG_NONE) {
4119 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY);
4120 } else {
4121 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY);
4122 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key);
4123 switch (alg) {
4124 case WPA_ALG_WEP:
4125 if (key_len == 5)
4126 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4127 WLAN_CIPHER_SUITE_WEP40);
4128 else
4129 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4130 WLAN_CIPHER_SUITE_WEP104);
4131 break;
4132 case WPA_ALG_TKIP:
4133 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4134 WLAN_CIPHER_SUITE_TKIP);
4135 break;
4136 case WPA_ALG_CCMP:
4137 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4138 WLAN_CIPHER_SUITE_CCMP);
4139 break;
4140 case WPA_ALG_IGTK:
4141 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4142 WLAN_CIPHER_SUITE_AES_CMAC);
4143 break;
4144 default:
4145 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
4146 "algorithm %d", __func__, alg);
4147 nlmsg_free(msg);
4148 return -1;
4149 }
4150 }
4152 if (seq && seq_len)
4153 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq);
4155 if (addr && !is_broadcast_ether_addr(addr)) {
4156 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr));
4157 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
4159 if (alg != WPA_ALG_WEP && key_idx && !set_tx) {
4160 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK");
4161 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE,
4162 NL80211_KEYTYPE_GROUP);
4163 }
4164 } else if (addr && is_broadcast_ether_addr(addr)) {
4165 struct nl_msg *types;
4166 int err;
4167 wpa_printf(MSG_DEBUG, " broadcast key");
4168 types = nlmsg_alloc();
4169 if (!types)
4170 goto nla_put_failure;
4171 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
4172 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
4173 types);
4174 nlmsg_free(types);
4175 if (err)
4176 goto nla_put_failure;
4177 }
4178 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
4179 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
4181 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4182 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE)
4183 ret = 0;
4184 if (ret)
4185 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)",
4186 ret, strerror(-ret));
4188 /*
4189 * If we failed or don't need to set the default TX key (below),
4190 * we're done here.
4191 */
4192 if (ret || !set_tx || alg == WPA_ALG_NONE)
4193 return ret;
4194 if (is_ap_interface(drv->nlmode) && addr &&
4195 !is_broadcast_ether_addr(addr))
4196 return ret;
4198 msg = nlmsg_alloc();
4199 if (!msg)
4200 return -ENOMEM;
4202 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY);
4203 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
4204 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
4205 if (alg == WPA_ALG_IGTK)
4206 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT);
4207 else
4208 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
4209 if (addr && is_broadcast_ether_addr(addr)) {
4210 struct nl_msg *types;
4211 int err;
4212 types = nlmsg_alloc();
4213 if (!types)
4214 goto nla_put_failure;
4215 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
4216 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
4217 types);
4218 nlmsg_free(types);
4219 if (err)
4220 goto nla_put_failure;
4221 } else if (addr) {
4222 struct nl_msg *types;
4223 int err;
4224 types = nlmsg_alloc();
4225 if (!types)
4226 goto nla_put_failure;
4227 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_UNICAST);
4228 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
4229 types);
4230 nlmsg_free(types);
4231 if (err)
4232 goto nla_put_failure;
4233 }
4235 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4236 if (ret == -ENOENT)
4237 ret = 0;
4238 if (ret)
4239 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; "
4240 "err=%d %s)", ret, strerror(-ret));
4241 return ret;
4243 nla_put_failure:
4244 nlmsg_free(msg);
4245 return -ENOBUFS;
4246 }
4249 static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg,
4250 int key_idx, int defkey,
4251 const u8 *seq, size_t seq_len,
4252 const u8 *key, size_t key_len)
4253 {
4254 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY);
4255 if (!key_attr)
4256 return -1;
4258 if (defkey && alg == WPA_ALG_IGTK)
4259 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT);
4260 else if (defkey)
4261 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
4263 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx);
4265 switch (alg) {
4266 case WPA_ALG_WEP:
4267 if (key_len == 5)
4268 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
4269 WLAN_CIPHER_SUITE_WEP40);
4270 else
4271 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
4272 WLAN_CIPHER_SUITE_WEP104);
4273 break;
4274 case WPA_ALG_TKIP:
4275 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP);
4276 break;
4277 case WPA_ALG_CCMP:
4278 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP);
4279 break;
4280 case WPA_ALG_IGTK:
4281 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
4282 WLAN_CIPHER_SUITE_AES_CMAC);
4283 break;
4284 default:
4285 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
4286 "algorithm %d", __func__, alg);
4287 return -1;
4288 }
4290 if (seq && seq_len)
4291 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq);
4293 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key);
4295 nla_nest_end(msg, key_attr);
4297 return 0;
4298 nla_put_failure:
4299 return -1;
4300 }
4303 static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params,
4304 struct nl_msg *msg)
4305 {
4306 int i, privacy = 0;
4307 struct nlattr *nl_keys, *nl_key;
4309 for (i = 0; i < 4; i++) {
4310 if (!params->wep_key[i])
4311 continue;
4312 privacy = 1;
4313 break;
4314 }
4315 if (params->wps == WPS_MODE_PRIVACY)
4316 privacy = 1;
4317 if (params->pairwise_suite &&
4318 params->pairwise_suite != WPA_CIPHER_NONE)
4319 privacy = 1;
4321 if (!privacy)
4322 return 0;
4324 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
4326 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS);
4327 if (!nl_keys)
4328 goto nla_put_failure;
4330 for (i = 0; i < 4; i++) {
4331 if (!params->wep_key[i])
4332 continue;
4334 nl_key = nla_nest_start(msg, i);
4335 if (!nl_key)
4336 goto nla_put_failure;
4338 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i],
4339 params->wep_key[i]);
4340 if (params->wep_key_len[i] == 5)
4341 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
4342 WLAN_CIPHER_SUITE_WEP40);
4343 else
4344 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
4345 WLAN_CIPHER_SUITE_WEP104);
4347 NLA_PUT_U8(msg, NL80211_KEY_IDX, i);
4349 if (i == params->wep_tx_keyidx)
4350 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
4352 nla_nest_end(msg, nl_key);
4353 }
4354 nla_nest_end(msg, nl_keys);
4356 return 0;
4358 nla_put_failure:
4359 return -ENOBUFS;
4360 }
4363 static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
4364 const u8 *addr, int cmd, u16 reason_code,
4365 int local_state_change)
4366 {
4367 int ret = -1;
4368 struct nl_msg *msg;
4370 msg = nlmsg_alloc();
4371 if (!msg)
4372 return -1;
4374 nl80211_cmd(drv, msg, 0, cmd);
4376 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4377 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code);
4378 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
4379 if (local_state_change)
4380 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
4382 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4383 msg = NULL;
4384 if (ret) {
4385 wpa_dbg(drv->ctx, MSG_DEBUG,
4386 "nl80211: MLME command failed: reason=%u ret=%d (%s)",
4387 reason_code, ret, strerror(-ret));
4388 goto nla_put_failure;
4389 }
4390 ret = 0;
4392 nla_put_failure:
4393 nlmsg_free(msg);
4394 return ret;
4395 }
4398 static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv,
4399 const u8 *addr, int reason_code)
4400 {
4401 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)",
4402 __func__, MAC2STR(addr), reason_code);
4403 drv->associated = 0;
4404 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISCONNECT,
4405 reason_code, 0);
4406 }
4409 static int wpa_driver_nl80211_deauthenticate(void *priv, const u8 *addr,
4410 int reason_code)
4411 {
4412 struct i802_bss *bss = priv;
4413 struct wpa_driver_nl80211_data *drv = bss->drv;
4414 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
4415 return wpa_driver_nl80211_disconnect(drv, addr, reason_code);
4416 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)",
4417 __func__, MAC2STR(addr), reason_code);
4418 drv->associated = 0;
4419 if (drv->nlmode == NL80211_IFTYPE_ADHOC)
4420 return nl80211_leave_ibss(drv);
4421 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE,
4422 reason_code, 0);
4423 }
4426 static int wpa_driver_nl80211_disassociate(void *priv, const u8 *addr,
4427 int reason_code)
4428 {
4429 struct i802_bss *bss = priv;
4430 struct wpa_driver_nl80211_data *drv = bss->drv;
4431 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
4432 return wpa_driver_nl80211_disconnect(drv, addr, reason_code);
4433 wpa_printf(MSG_DEBUG, "%s", __func__);
4434 drv->associated = 0;
4435 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISASSOCIATE,
4436 reason_code, 0);
4437 }
4440 static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv,
4441 struct wpa_driver_auth_params *params)
4442 {
4443 int i;
4445 drv->auth_freq = params->freq;
4446 drv->auth_alg = params->auth_alg;
4447 drv->auth_wep_tx_keyidx = params->wep_tx_keyidx;
4448 drv->auth_local_state_change = params->local_state_change;
4449 drv->auth_p2p = params->p2p;
4451 if (params->bssid)
4452 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN);
4453 else
4454 os_memset(drv->auth_bssid_, 0, ETH_ALEN);
4456 if (params->ssid) {
4457 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len);
4458 drv->auth_ssid_len = params->ssid_len;
4459 } else
4460 drv->auth_ssid_len = 0;
4463 os_free(drv->auth_ie);
4464 drv->auth_ie = NULL;
4465 drv->auth_ie_len = 0;
4466 if (params->ie) {
4467 drv->auth_ie = os_malloc(params->ie_len);
4468 if (drv->auth_ie) {
4469 os_memcpy(drv->auth_ie, params->ie, params->ie_len);
4470 drv->auth_ie_len = params->ie_len;
4471 }
4472 }
4474 for (i = 0; i < 4; i++) {
4475 if (params->wep_key[i] && params->wep_key_len[i] &&
4476 params->wep_key_len[i] <= 16) {
4477 os_memcpy(drv->auth_wep_key[i], params->wep_key[i],
4478 params->wep_key_len[i]);
4479 drv->auth_wep_key_len[i] = params->wep_key_len[i];
4480 } else
4481 drv->auth_wep_key_len[i] = 0;
4482 }
4483 }
4486 static int wpa_driver_nl80211_authenticate(
4487 void *priv, struct wpa_driver_auth_params *params)
4488 {
4489 struct i802_bss *bss = priv;
4490 struct wpa_driver_nl80211_data *drv = bss->drv;
4491 int ret = -1, i;
4492 struct nl_msg *msg;
4493 enum nl80211_auth_type type;
4494 enum nl80211_iftype nlmode;
4495 int count = 0;
4496 int is_retry;
4498 is_retry = drv->retry_auth;
4499 drv->retry_auth = 0;
4501 drv->associated = 0;
4502 os_memset(drv->auth_bssid, 0, ETH_ALEN);
4503 /* FIX: IBSS mode */
4504 nlmode = params->p2p ?
4505 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
4506 if (drv->nlmode != nlmode &&
4507 wpa_driver_nl80211_set_mode(priv, nlmode) < 0)
4508 return -1;
4510 retry:
4511 msg = nlmsg_alloc();
4512 if (!msg)
4513 return -1;
4515 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)",
4516 drv->ifindex);
4518 nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE);
4520 for (i = 0; i < 4; i++) {
4521 if (!params->wep_key[i])
4522 continue;
4523 wpa_driver_nl80211_set_key(bss->ifname, priv, WPA_ALG_WEP,
4524 NULL, i,
4525 i == params->wep_tx_keyidx, NULL, 0,
4526 params->wep_key[i],
4527 params->wep_key_len[i]);
4528 if (params->wep_tx_keyidx != i)
4529 continue;
4530 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0,
4531 params->wep_key[i], params->wep_key_len[i])) {
4532 nlmsg_free(msg);
4533 return -1;
4534 }
4535 }
4537 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4538 if (params->bssid) {
4539 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
4540 MAC2STR(params->bssid));
4541 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
4542 }
4543 if (params->freq) {
4544 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
4545 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
4546 }
4547 if (params->ssid) {
4548 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
4549 params->ssid, params->ssid_len);
4550 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
4551 params->ssid);
4552 }
4553 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len);
4554 if (params->ie)
4555 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie);
4556 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
4557 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
4558 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
4559 type = NL80211_AUTHTYPE_SHARED_KEY;
4560 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
4561 type = NL80211_AUTHTYPE_NETWORK_EAP;
4562 else if (params->auth_alg & WPA_AUTH_ALG_FT)
4563 type = NL80211_AUTHTYPE_FT;
4564 else
4565 goto nla_put_failure;
4566 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
4567 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
4568 if (params->local_state_change) {
4569 wpa_printf(MSG_DEBUG, " * Local state change only");
4570 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
4571 }
4573 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4574 msg = NULL;
4575 if (ret) {
4576 wpa_dbg(drv->ctx, MSG_DEBUG,
4577 "nl80211: MLME command failed (auth): ret=%d (%s)",
4578 ret, strerror(-ret));
4579 count++;
4580 if (ret == -EALREADY && count == 1 && params->bssid &&
4581 !params->local_state_change) {
4582 /*
4583 * mac80211 does not currently accept new
4584 * authentication if we are already authenticated. As a
4585 * workaround, force deauthentication and try again.
4586 */
4587 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication "
4588 "after forced deauthentication");
4589 wpa_driver_nl80211_deauthenticate(
4590 bss, params->bssid,
4591 WLAN_REASON_PREV_AUTH_NOT_VALID);
4592 nlmsg_free(msg);
4593 goto retry;
4594 }
4596 if (ret == -ENOENT && params->freq && !is_retry) {
4597 /*
4598 * cfg80211 has likely expired the BSS entry even
4599 * though it was previously available in our internal
4600 * BSS table. To recover quickly, start a single
4601 * channel scan on the specified channel.
4602 */
4603 struct wpa_driver_scan_params scan;
4604 int freqs[2];
4606 os_memset(&scan, 0, sizeof(scan));
4607 scan.num_ssids = 1;
4608 if (params->ssid) {
4609 scan.ssids[0].ssid = params->ssid;
4610 scan.ssids[0].ssid_len = params->ssid_len;
4611 }
4612 freqs[0] = params->freq;
4613 freqs[1] = 0;
4614 scan.freqs = freqs;
4615 wpa_printf(MSG_DEBUG, "nl80211: Trigger single "
4616 "channel scan to refresh cfg80211 BSS "
4617 "entry");
4618 ret = wpa_driver_nl80211_scan(bss, &scan);
4619 if (ret == 0) {
4620 nl80211_copy_auth_params(drv, params);
4621 drv->scan_for_auth = 1;
4622 }
4623 } else if (is_retry) {
4624 /*
4625 * Need to indicate this with an event since the return
4626 * value from the retry is not delivered to core code.
4627 */
4628 union wpa_event_data event;
4629 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry "
4630 "failed");
4631 os_memset(&event, 0, sizeof(event));
4632 os_memcpy(event.timeout_event.addr, drv->auth_bssid_,
4633 ETH_ALEN);
4634 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT,
4635 &event);
4636 }
4638 goto nla_put_failure;
4639 }
4640 ret = 0;
4641 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send "
4642 "successfully");
4644 nla_put_failure:
4645 nlmsg_free(msg);
4646 return ret;
4647 }
4650 static int wpa_driver_nl80211_authenticate_retry(
4651 struct wpa_driver_nl80211_data *drv)
4652 {
4653 struct wpa_driver_auth_params params;
4654 struct i802_bss *bss = &drv->first_bss;
4655 int i;
4657 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again");
4659 os_memset(¶ms, 0, sizeof(params));
4660 params.freq = drv->auth_freq;
4661 params.auth_alg = drv->auth_alg;
4662 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx;
4663 params.local_state_change = drv->auth_local_state_change;
4664 params.p2p = drv->auth_p2p;
4666 if (!is_zero_ether_addr(drv->auth_bssid_))
4667 params.bssid = drv->auth_bssid_;
4669 if (drv->auth_ssid_len) {
4670 params.ssid = drv->auth_ssid;
4671 params.ssid_len = drv->auth_ssid_len;
4672 }
4674 params.ie = drv->auth_ie;
4675 params.ie_len = drv->auth_ie_len;
4677 for (i = 0; i < 4; i++) {
4678 if (drv->auth_wep_key_len[i]) {
4679 params.wep_key[i] = drv->auth_wep_key[i];
4680 params.wep_key_len[i] = drv->auth_wep_key_len[i];
4681 }
4682 }
4684 drv->retry_auth = 1;
4685 return wpa_driver_nl80211_authenticate(bss, ¶ms);
4686 }
4689 struct phy_info_arg {
4690 u16 *num_modes;
4691 struct hostapd_hw_modes *modes;
4692 };
4694 static int phy_info_handler(struct nl_msg *msg, void *arg)
4695 {
4696 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
4697 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
4698 struct phy_info_arg *phy_info = arg;
4700 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
4702 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
4703 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
4704 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
4705 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
4706 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG },
4707 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG },
4708 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
4709 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
4710 };
4712 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
4713 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
4714 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
4715 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = { .type = NLA_FLAG },
4716 };
4718 struct nlattr *nl_band;
4719 struct nlattr *nl_freq;
4720 struct nlattr *nl_rate;
4721 int rem_band, rem_freq, rem_rate;
4722 struct hostapd_hw_modes *mode;
4723 int idx, mode_is_set;
4725 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
4726 genlmsg_attrlen(gnlh, 0), NULL);
4728 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
4729 return NL_SKIP;
4731 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) {
4732 mode = os_realloc(phy_info->modes, (*phy_info->num_modes + 1) * sizeof(*mode));
4733 if (!mode)
4734 return NL_SKIP;
4735 phy_info->modes = mode;
4737 mode_is_set = 0;
4739 mode = &phy_info->modes[*(phy_info->num_modes)];
4740 memset(mode, 0, sizeof(*mode));
4741 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN;
4742 *(phy_info->num_modes) += 1;
4744 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
4745 nla_len(nl_band), NULL);
4747 if (tb_band[NL80211_BAND_ATTR_HT_CAPA]) {
4748 mode->ht_capab = nla_get_u16(
4749 tb_band[NL80211_BAND_ATTR_HT_CAPA]);
4750 }
4752 if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) {
4753 mode->a_mpdu_params |= nla_get_u8(
4754 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) &
4755 0x03;
4756 }
4758 if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) {
4759 mode->a_mpdu_params |= nla_get_u8(
4760 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) <<
4761 2;
4762 }
4764 if (tb_band[NL80211_BAND_ATTR_HT_MCS_SET] &&
4765 nla_len(tb_band[NL80211_BAND_ATTR_HT_MCS_SET])) {
4766 u8 *mcs;
4767 mcs = nla_data(tb_band[NL80211_BAND_ATTR_HT_MCS_SET]);
4768 os_memcpy(mode->mcs_set, mcs, 16);
4769 }
4771 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
4772 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
4773 nla_len(nl_freq), freq_policy);
4774 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
4775 continue;
4776 mode->num_channels++;
4777 }
4779 mode->channels = os_zalloc(mode->num_channels * sizeof(struct hostapd_channel_data));
4780 if (!mode->channels)
4781 return NL_SKIP;
4783 idx = 0;
4785 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
4786 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
4787 nla_len(nl_freq), freq_policy);
4788 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
4789 continue;
4791 mode->channels[idx].freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
4792 mode->channels[idx].flag = 0;
4794 if (!mode_is_set) {
4795 /* crude heuristic */
4796 if (mode->channels[idx].freq < 4000)
4797 mode->mode = HOSTAPD_MODE_IEEE80211B;
4798 else
4799 mode->mode = HOSTAPD_MODE_IEEE80211A;
4800 mode_is_set = 1;
4801 }
4803 /* crude heuristic */
4804 if (mode->channels[idx].freq < 4000)
4805 if (mode->channels[idx].freq == 2484)
4806 mode->channels[idx].chan = 14;
4807 else
4808 mode->channels[idx].chan = (mode->channels[idx].freq - 2407) / 5;
4809 else
4810 mode->channels[idx].chan = mode->channels[idx].freq/5 - 1000;
4812 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
4813 mode->channels[idx].flag |=
4814 HOSTAPD_CHAN_DISABLED;
4815 if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
4816 mode->channels[idx].flag |=
4817 HOSTAPD_CHAN_PASSIVE_SCAN;
4818 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS])
4819 mode->channels[idx].flag |=
4820 HOSTAPD_CHAN_NO_IBSS;
4821 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
4822 mode->channels[idx].flag |=
4823 HOSTAPD_CHAN_RADAR;
4825 if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] &&
4826 !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
4827 mode->channels[idx].max_tx_power =
4828 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100;
4830 idx++;
4831 }
4833 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
4834 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
4835 nla_len(nl_rate), rate_policy);
4836 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
4837 continue;
4838 mode->num_rates++;
4839 }
4841 mode->rates = os_zalloc(mode->num_rates * sizeof(int));
4842 if (!mode->rates)
4843 return NL_SKIP;
4845 idx = 0;
4847 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
4848 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
4849 nla_len(nl_rate), rate_policy);
4850 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
4851 continue;
4852 mode->rates[idx] = nla_get_u32(tb_rate[NL80211_BITRATE_ATTR_RATE]);
4854 /* crude heuristic */
4855 if (mode->mode == HOSTAPD_MODE_IEEE80211B &&
4856 mode->rates[idx] > 200)
4857 mode->mode = HOSTAPD_MODE_IEEE80211G;
4859 idx++;
4860 }
4861 }
4863 return NL_SKIP;
4864 }
4866 static struct hostapd_hw_modes *
4867 wpa_driver_nl80211_add_11b(struct hostapd_hw_modes *modes, u16 *num_modes)
4868 {
4869 u16 m;
4870 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
4871 int i, mode11g_idx = -1;
4873 /* If only 802.11g mode is included, use it to construct matching
4874 * 802.11b mode data. */
4876 for (m = 0; m < *num_modes; m++) {
4877 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
4878 return modes; /* 802.11b already included */
4879 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
4880 mode11g_idx = m;
4881 }
4883 if (mode11g_idx < 0)
4884 return modes; /* 2.4 GHz band not supported at all */
4886 nmodes = os_realloc(modes, (*num_modes + 1) * sizeof(*nmodes));
4887 if (nmodes == NULL)
4888 return modes; /* Could not add 802.11b mode */
4890 mode = &nmodes[*num_modes];
4891 os_memset(mode, 0, sizeof(*mode));
4892 (*num_modes)++;
4893 modes = nmodes;
4895 mode->mode = HOSTAPD_MODE_IEEE80211B;
4897 mode11g = &modes[mode11g_idx];
4898 mode->num_channels = mode11g->num_channels;
4899 mode->channels = os_malloc(mode11g->num_channels *
4900 sizeof(struct hostapd_channel_data));
4901 if (mode->channels == NULL) {
4902 (*num_modes)--;
4903 return modes; /* Could not add 802.11b mode */
4904 }
4905 os_memcpy(mode->channels, mode11g->channels,
4906 mode11g->num_channels * sizeof(struct hostapd_channel_data));
4908 mode->num_rates = 0;
4909 mode->rates = os_malloc(4 * sizeof(int));
4910 if (mode->rates == NULL) {
4911 os_free(mode->channels);
4912 (*num_modes)--;
4913 return modes; /* Could not add 802.11b mode */
4914 }
4916 for (i = 0; i < mode11g->num_rates; i++) {
4917 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 &&
4918 mode11g->rates[i] != 55 && mode11g->rates[i] != 110)
4919 continue;
4920 mode->rates[mode->num_rates] = mode11g->rates[i];
4921 mode->num_rates++;
4922 if (mode->num_rates == 4)
4923 break;
4924 }
4926 if (mode->num_rates == 0) {
4927 os_free(mode->channels);
4928 os_free(mode->rates);
4929 (*num_modes)--;
4930 return modes; /* No 802.11b rates */
4931 }
4933 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
4934 "information");
4936 return modes;
4937 }
4940 static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start,
4941 int end)
4942 {
4943 int c;
4945 for (c = 0; c < mode->num_channels; c++) {
4946 struct hostapd_channel_data *chan = &mode->channels[c];
4947 if (chan->freq - 10 >= start && chan->freq + 10 <= end)
4948 chan->flag |= HOSTAPD_CHAN_HT40;
4949 }
4950 }
4953 static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start,
4954 int end)
4955 {
4956 int c;
4958 for (c = 0; c < mode->num_channels; c++) {
4959 struct hostapd_channel_data *chan = &mode->channels[c];
4960 if (!(chan->flag & HOSTAPD_CHAN_HT40))
4961 continue;
4962 if (chan->freq - 30 >= start && chan->freq - 10 <= end)
4963 chan->flag |= HOSTAPD_CHAN_HT40MINUS;
4964 if (chan->freq + 10 >= start && chan->freq + 30 <= end)
4965 chan->flag |= HOSTAPD_CHAN_HT40PLUS;
4966 }
4967 }
4970 static void nl80211_reg_rule_ht40(struct nlattr *tb[],
4971 struct phy_info_arg *results)
4972 {
4973 u32 start, end, max_bw;
4974 u16 m;
4976 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
4977 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
4978 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
4979 return;
4981 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
4982 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
4983 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
4985 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz",
4986 start, end, max_bw);
4987 if (max_bw < 40)
4988 return;
4990 for (m = 0; m < *results->num_modes; m++) {
4991 if (!(results->modes[m].ht_capab &
4992 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
4993 continue;
4994 nl80211_set_ht40_mode(&results->modes[m], start, end);
4995 }
4996 }
4999 static void nl80211_reg_rule_sec(struct nlattr *tb[],
5000 struct phy_info_arg *results)
5001 {
5002 u32 start, end, max_bw;
5003 u16 m;
5005 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
5006 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
5007 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
5008 return;
5010 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
5011 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
5012 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
5014 if (max_bw < 20)
5015 return;
5017 for (m = 0; m < *results->num_modes; m++) {
5018 if (!(results->modes[m].ht_capab &
5019 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
5020 continue;
5021 nl80211_set_ht40_mode_sec(&results->modes[m], start, end);
5022 }
5023 }
5026 static int nl80211_get_reg(struct nl_msg *msg, void *arg)
5027 {
5028 struct phy_info_arg *results = arg;
5029 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
5030 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
5031 struct nlattr *nl_rule;
5032 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1];
5033 int rem_rule;
5034 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
5035 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
5036 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
5037 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
5038 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
5039 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
5040 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
5041 };
5043 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
5044 genlmsg_attrlen(gnlh, 0), NULL);
5045 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] ||
5046 !tb_msg[NL80211_ATTR_REG_RULES]) {
5047 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information "
5048 "available");
5049 return NL_SKIP;
5050 }
5052 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s",
5053 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]));
5055 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
5056 {
5057 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
5058 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
5059 nl80211_reg_rule_ht40(tb_rule, results);
5060 }
5062 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
5063 {
5064 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
5065 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
5066 nl80211_reg_rule_sec(tb_rule, results);
5067 }
5069 return NL_SKIP;
5070 }
5073 static int nl80211_set_ht40_flags(struct wpa_driver_nl80211_data *drv,
5074 struct phy_info_arg *results)
5075 {
5076 struct nl_msg *msg;
5078 msg = nlmsg_alloc();
5079 if (!msg)
5080 return -ENOMEM;
5082 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG);
5083 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results);
5084 }
5087 static struct hostapd_hw_modes *
5088 wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
5089 {
5090 struct i802_bss *bss = priv;
5091 struct wpa_driver_nl80211_data *drv = bss->drv;
5092 struct nl_msg *msg;
5093 struct phy_info_arg result = {
5094 .num_modes = num_modes,
5095 .modes = NULL,
5096 };
5098 *num_modes = 0;
5099 *flags = 0;
5101 msg = nlmsg_alloc();
5102 if (!msg)
5103 return NULL;
5105 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY);
5107 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5109 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) {
5110 nl80211_set_ht40_flags(drv, &result);
5111 return wpa_driver_nl80211_add_11b(result.modes, num_modes);
5112 }
5113 msg = NULL;
5114 nla_put_failure:
5115 nlmsg_free(msg);
5116 return NULL;
5117 }
5120 static int wpa_driver_nl80211_send_mntr(struct wpa_driver_nl80211_data *drv,
5121 const void *data, size_t len,
5122 int encrypt, int noack)
5123 {
5124 __u8 rtap_hdr[] = {
5125 0x00, 0x00, /* radiotap version */
5126 0x0e, 0x00, /* radiotap length */
5127 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */
5128 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */
5129 0x00, /* padding */
5130 0x00, 0x00, /* RX and TX flags to indicate that */
5131 0x00, 0x00, /* this is the injected frame directly */
5132 };
5133 struct iovec iov[2] = {
5134 {
5135 .iov_base = &rtap_hdr,
5136 .iov_len = sizeof(rtap_hdr),
5137 },
5138 {
5139 .iov_base = (void *) data,
5140 .iov_len = len,
5141 }
5142 };
5143 struct msghdr msg = {
5144 .msg_name = NULL,
5145 .msg_namelen = 0,
5146 .msg_iov = iov,
5147 .msg_iovlen = 2,
5148 .msg_control = NULL,
5149 .msg_controllen = 0,
5150 .msg_flags = 0,
5151 };
5152 int res;
5153 u16 txflags = 0;
5155 if (encrypt)
5156 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP;
5158 if (drv->monitor_sock < 0) {
5159 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available "
5160 "for %s", __func__);
5161 return -1;
5162 }
5164 if (noack)
5165 txflags |= IEEE80211_RADIOTAP_F_TX_NOACK;
5166 *(le16 *) &rtap_hdr[12] = host_to_le16(txflags);
5168 res = sendmsg(drv->monitor_sock, &msg, 0);
5169 if (res < 0) {
5170 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno));
5171 return -1;
5172 }
5173 return 0;
5174 }
5177 static int wpa_driver_nl80211_send_frame(struct i802_bss *bss,
5178 const void *data, size_t len,
5179 int encrypt, int noack,
5180 unsigned int freq, int no_cck,
5181 int offchanok, unsigned int wait_time)
5182 {
5183 struct wpa_driver_nl80211_data *drv = bss->drv;
5184 u64 cookie;
5186 if (freq == 0)
5187 freq = bss->freq;
5189 if (drv->use_monitor)
5190 return wpa_driver_nl80211_send_mntr(drv, data, len,
5191 encrypt, noack);
5193 return nl80211_send_frame_cmd(bss, freq, wait_time, data, len,
5194 &cookie, no_cck, noack, offchanok);
5195 }
5198 static int wpa_driver_nl80211_send_mlme_freq(struct i802_bss *bss,
5199 const u8 *data,
5200 size_t data_len, int noack,
5201 unsigned int freq, int no_cck,
5202 int offchanok,
5203 unsigned int wait_time)
5204 {
5205 struct wpa_driver_nl80211_data *drv = bss->drv;
5206 struct ieee80211_mgmt *mgmt;
5207 int encrypt = 1;
5208 u16 fc;
5210 mgmt = (struct ieee80211_mgmt *) data;
5211 fc = le_to_host16(mgmt->frame_control);
5213 if (is_sta_interface(drv->nlmode) &&
5214 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
5215 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) {
5216 /*
5217 * The use of last_mgmt_freq is a bit of a hack,
5218 * but it works due to the single-threaded nature
5219 * of wpa_supplicant.
5220 */
5221 if (freq == 0)
5222 freq = drv->last_mgmt_freq;
5223 return nl80211_send_frame_cmd(bss, freq, 0,
5224 data, data_len, NULL, 1, noack,
5225 1);
5226 }
5228 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) {
5229 if (freq == 0)
5230 freq = bss->freq;
5231 return nl80211_send_frame_cmd(bss, freq, 0,
5232 data, data_len,
5233 &drv->send_action_cookie,
5234 no_cck, noack, offchanok);
5235 }
5237 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
5238 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) {
5239 /*
5240 * Only one of the authentication frame types is encrypted.
5241 * In order for static WEP encryption to work properly (i.e.,
5242 * to not encrypt the frame), we need to tell mac80211 about
5243 * the frames that must not be encrypted.
5244 */
5245 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
5246 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction);
5247 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3)
5248 encrypt = 0;
5249 }
5251 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt,
5252 noack, freq, no_cck, offchanok,
5253 wait_time);
5254 }
5257 static int wpa_driver_nl80211_send_mlme(void *priv, const u8 *data,
5258 size_t data_len, int noack)
5259 {
5260 struct i802_bss *bss = priv;
5261 return wpa_driver_nl80211_send_mlme_freq(bss, data, data_len, noack,
5262 0, 0, 0, 0);
5263 }
5266 static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble,
5267 int slot, int ht_opmode, int ap_isolate,
5268 int *basic_rates)
5269 {
5270 struct wpa_driver_nl80211_data *drv = bss->drv;
5271 struct nl_msg *msg;
5273 msg = nlmsg_alloc();
5274 if (!msg)
5275 return -ENOMEM;
5277 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS);
5279 if (cts >= 0)
5280 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts);
5281 if (preamble >= 0)
5282 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble);
5283 if (slot >= 0)
5284 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot);
5285 if (ht_opmode >= 0)
5286 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode);
5287 if (ap_isolate >= 0)
5288 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate);
5290 if (basic_rates) {
5291 u8 rates[NL80211_MAX_SUPP_RATES];
5292 u8 rates_len = 0;
5293 int i;
5295 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0;
5296 i++)
5297 rates[rates_len++] = basic_rates[i] / 5;
5299 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates);
5300 }
5302 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
5304 return send_and_recv_msgs(drv, msg, NULL, NULL);
5305 nla_put_failure:
5306 nlmsg_free(msg);
5307 return -ENOBUFS;
5308 }
5311 static int wpa_driver_nl80211_set_ap(void *priv,
5312 struct wpa_driver_ap_params *params)
5313 {
5314 struct i802_bss *bss = priv;
5315 struct wpa_driver_nl80211_data *drv = bss->drv;
5316 struct nl_msg *msg;
5317 u8 cmd = NL80211_CMD_NEW_BEACON;
5318 int ret;
5319 int beacon_set;
5320 int ifindex = if_nametoindex(bss->ifname);
5321 int num_suites;
5322 u32 suites[10];
5323 u32 ver;
5325 beacon_set = bss->beacon_set;
5327 msg = nlmsg_alloc();
5328 if (!msg)
5329 return -ENOMEM;
5331 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)",
5332 beacon_set);
5333 if (beacon_set)
5334 cmd = NL80211_CMD_SET_BEACON;
5336 nl80211_cmd(drv, msg, 0, cmd);
5337 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head);
5338 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail);
5339 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
5340 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int);
5341 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period);
5342 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
5343 params->ssid);
5344 if (params->proberesp && params->proberesp_len)
5345 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len,
5346 params->proberesp);
5347 switch (params->hide_ssid) {
5348 case NO_SSID_HIDING:
5349 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
5350 NL80211_HIDDEN_SSID_NOT_IN_USE);
5351 break;
5352 case HIDDEN_SSID_ZERO_LEN:
5353 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
5354 NL80211_HIDDEN_SSID_ZERO_LEN);
5355 break;
5356 case HIDDEN_SSID_ZERO_CONTENTS:
5357 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
5358 NL80211_HIDDEN_SSID_ZERO_CONTENTS);
5359 break;
5360 }
5361 if (params->privacy)
5362 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
5363 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) ==
5364 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) {
5365 /* Leave out the attribute */
5366 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED)
5367 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE,
5368 NL80211_AUTHTYPE_SHARED_KEY);
5369 else
5370 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE,
5371 NL80211_AUTHTYPE_OPEN_SYSTEM);
5373 ver = 0;
5374 if (params->wpa_version & WPA_PROTO_WPA)
5375 ver |= NL80211_WPA_VERSION_1;
5376 if (params->wpa_version & WPA_PROTO_RSN)
5377 ver |= NL80211_WPA_VERSION_2;
5378 if (ver)
5379 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
5381 num_suites = 0;
5382 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X)
5383 suites[num_suites++] = WLAN_AKM_SUITE_8021X;
5384 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK)
5385 suites[num_suites++] = WLAN_AKM_SUITE_PSK;
5386 if (num_suites) {
5387 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES,
5388 num_suites * sizeof(u32), suites);
5389 }
5391 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X &&
5392 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40))
5393 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT);
5395 num_suites = 0;
5396 if (params->pairwise_ciphers & WPA_CIPHER_CCMP)
5397 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP;
5398 if (params->pairwise_ciphers & WPA_CIPHER_TKIP)
5399 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP;
5400 if (params->pairwise_ciphers & WPA_CIPHER_WEP104)
5401 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104;
5402 if (params->pairwise_ciphers & WPA_CIPHER_WEP40)
5403 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40;
5404 if (num_suites) {
5405 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE,
5406 num_suites * sizeof(u32), suites);
5407 }
5409 switch (params->group_cipher) {
5410 case WPA_CIPHER_CCMP:
5411 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
5412 WLAN_CIPHER_SUITE_CCMP);
5413 break;
5414 case WPA_CIPHER_TKIP:
5415 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
5416 WLAN_CIPHER_SUITE_TKIP);
5417 break;
5418 case WPA_CIPHER_WEP104:
5419 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
5420 WLAN_CIPHER_SUITE_WEP104);
5421 break;
5422 case WPA_CIPHER_WEP40:
5423 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
5424 WLAN_CIPHER_SUITE_WEP40);
5425 break;
5426 }
5428 if (params->beacon_ies) {
5429 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies),
5430 wpabuf_head(params->beacon_ies));
5431 }
5432 if (params->proberesp_ies) {
5433 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP,
5434 wpabuf_len(params->proberesp_ies),
5435 wpabuf_head(params->proberesp_ies));
5436 }
5437 if (params->assocresp_ies) {
5438 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP,
5439 wpabuf_len(params->assocresp_ies),
5440 wpabuf_head(params->assocresp_ies));
5441 }
5443 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5444 if (ret) {
5445 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)",
5446 ret, strerror(-ret));
5447 } else {
5448 bss->beacon_set = 1;
5449 nl80211_set_bss(bss, params->cts_protect, params->preamble,
5450 params->short_slot_time, params->ht_opmode,
5451 params->isolate, params->basic_rates);
5452 }
5453 #if defined(ANDROID_BRCM_P2P_PATCH) && defined(HOSTAPD)
5454 wpa_driver_nl80211_probe_req_report(priv, 1);
5455 #endif
5456 return ret;
5457 nla_put_failure:
5458 nlmsg_free(msg);
5459 return -ENOBUFS;
5460 }
5463 static int wpa_driver_nl80211_set_freq(struct i802_bss *bss,
5464 int freq, int ht_enabled,
5465 int sec_channel_offset)
5466 {
5467 struct wpa_driver_nl80211_data *drv = bss->drv;
5468 struct nl_msg *msg;
5469 int ret;
5471 wpa_printf(MSG_DEBUG, "nl80211: Set freq %d (ht_enabled=%d "
5472 "sec_channel_offset=%d)",
5473 freq, ht_enabled, sec_channel_offset);
5474 msg = nlmsg_alloc();
5475 if (!msg)
5476 return -1;
5478 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
5480 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5481 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
5482 if (ht_enabled) {
5483 switch (sec_channel_offset) {
5484 case -1:
5485 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
5486 NL80211_CHAN_HT40MINUS);
5487 break;
5488 case 1:
5489 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
5490 NL80211_CHAN_HT40PLUS);
5491 break;
5492 default:
5493 #ifdef ANDROID_BRCM_P2P_PATCH
5494 /* Should be changed to HT20 as a default value because
5495 * P2P firmware does not support 11n for BCM4329 */
5496 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
5497 NL80211_CHAN_NO_HT);
5498 #else /* ANDROID_BRCM_P2P_PATCH */
5499 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
5500 NL80211_CHAN_HT20);
5501 #endif /* ANDROID_BRCM_P2P_PATCH */
5502 break;
5503 }
5504 }
5506 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5507 msg = NULL;
5508 if (ret == 0) {
5509 bss->freq = freq;
5510 return 0;
5511 }
5512 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): "
5513 "%d (%s)", freq, ret, strerror(-ret));
5514 nla_put_failure:
5515 nlmsg_free(msg);
5516 return -1;
5517 }
5520 static u32 sta_flags_nl80211(int flags)
5521 {
5522 u32 f = 0;
5524 if (flags & WPA_STA_AUTHORIZED)
5525 f |= BIT(NL80211_STA_FLAG_AUTHORIZED);
5526 if (flags & WPA_STA_WMM)
5527 f |= BIT(NL80211_STA_FLAG_WME);
5528 if (flags & WPA_STA_SHORT_PREAMBLE)
5529 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
5530 if (flags & WPA_STA_MFP)
5531 f |= BIT(NL80211_STA_FLAG_MFP);
5532 if (flags & WPA_STA_TDLS_PEER)
5533 f |= BIT(NL80211_STA_FLAG_TDLS_PEER);
5535 return f;
5536 }
5539 static int wpa_driver_nl80211_sta_add(void *priv,
5540 struct hostapd_sta_add_params *params)
5541 {
5542 struct i802_bss *bss = priv;
5543 struct wpa_driver_nl80211_data *drv = bss->drv;
5544 struct nl_msg *msg, *wme = NULL;
5545 struct nl80211_sta_flag_update upd;
5546 int ret = -ENOBUFS;
5548 if ((params->flags & WPA_STA_TDLS_PEER) &&
5549 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
5550 return -EOPNOTSUPP;
5552 msg = nlmsg_alloc();
5553 if (!msg)
5554 return -ENOMEM;
5556 nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION :
5557 NL80211_CMD_NEW_STATION);
5559 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
5560 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr);
5561 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len,
5562 params->supp_rates);
5563 if (!params->set) {
5564 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid);
5565 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL,
5566 params->listen_interval);
5567 }
5568 if (params->ht_capabilities) {
5569 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY,
5570 sizeof(*params->ht_capabilities),
5571 params->ht_capabilities);
5572 }
5574 os_memset(&upd, 0, sizeof(upd));
5575 upd.mask = sta_flags_nl80211(params->flags);
5576 upd.set = upd.mask;
5577 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
5579 if (params->flags & WPA_STA_WMM) {
5580 wme = nlmsg_alloc();
5581 if (!wme)
5582 goto nla_put_failure;
5584 NLA_PUT_U8(wme, NL80211_STA_WME_UAPSD_QUEUES,
5585 params->qosinfo & WMM_QOSINFO_STA_AC_MASK);
5586 NLA_PUT_U8(wme, NL80211_STA_WME_MAX_SP,
5587 (params->qosinfo > WMM_QOSINFO_STA_SP_SHIFT) &
5588 WMM_QOSINFO_STA_SP_MASK);
5589 nla_put_nested(msg, NL80211_ATTR_STA_WME, wme);
5590 }
5592 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5593 msg = NULL;
5594 if (ret)
5595 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION "
5596 "result: %d (%s)", params->set ? "SET" : "NEW", ret,
5597 strerror(-ret));
5598 if (ret == -EEXIST)
5599 ret = 0;
5600 nla_put_failure:
5601 nlmsg_free(wme);
5602 nlmsg_free(msg);
5603 return ret;
5604 }
5607 static int wpa_driver_nl80211_sta_remove(void *priv, const u8 *addr)
5608 {
5609 struct i802_bss *bss = priv;
5610 struct wpa_driver_nl80211_data *drv = bss->drv;
5611 struct nl_msg *msg;
5612 int ret;
5614 msg = nlmsg_alloc();
5615 if (!msg)
5616 return -ENOMEM;
5618 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION);
5620 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
5621 if_nametoindex(bss->ifname));
5622 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5624 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5625 if (ret == -ENOENT)
5626 return 0;
5627 return ret;
5628 nla_put_failure:
5629 nlmsg_free(msg);
5630 return -ENOBUFS;
5631 }
5634 static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
5635 int ifidx)
5636 {
5637 struct nl_msg *msg;
5639 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx);
5641 /* stop listening for EAPOL on this interface */
5642 del_ifidx(drv, ifidx);
5644 msg = nlmsg_alloc();
5645 if (!msg)
5646 goto nla_put_failure;
5648 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE);
5649 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx);
5651 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
5652 return;
5653 msg = NULL;
5654 nla_put_failure:
5655 nlmsg_free(msg);
5656 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx);
5657 }
5660 static const char * nl80211_iftype_str(enum nl80211_iftype mode)
5661 {
5662 switch (mode) {
5663 case NL80211_IFTYPE_ADHOC:
5664 return "ADHOC";
5665 case NL80211_IFTYPE_STATION:
5666 return "STATION";
5667 case NL80211_IFTYPE_AP:
5668 return "AP";
5669 case NL80211_IFTYPE_MONITOR:
5670 return "MONITOR";
5671 case NL80211_IFTYPE_P2P_CLIENT:
5672 return "P2P_CLIENT";
5673 case NL80211_IFTYPE_P2P_GO:
5674 return "P2P_GO";
5675 default:
5676 return "unknown";
5677 }
5678 }
5681 static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv,
5682 const char *ifname,
5683 enum nl80211_iftype iftype,
5684 const u8 *addr, int wds)
5685 {
5686 struct nl_msg *msg, *flags = NULL;
5687 int ifidx;
5688 int ret = -ENOBUFS;
5690 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)",
5691 iftype, nl80211_iftype_str(iftype));
5693 msg = nlmsg_alloc();
5694 if (!msg)
5695 return -1;
5697 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE);
5698 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5699 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname);
5700 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype);
5702 if (iftype == NL80211_IFTYPE_MONITOR) {
5703 int err;
5705 flags = nlmsg_alloc();
5706 if (!flags)
5707 goto nla_put_failure;
5709 NLA_PUT_FLAG(flags, NL80211_MNTR_FLAG_COOK_FRAMES);
5711 err = nla_put_nested(msg, NL80211_ATTR_MNTR_FLAGS, flags);
5713 nlmsg_free(flags);
5715 if (err)
5716 goto nla_put_failure;
5717 } else if (wds) {
5718 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds);
5719 }
5721 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5722 msg = NULL;
5723 if (ret) {
5724 nla_put_failure:
5725 nlmsg_free(msg);
5726 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)",
5727 ifname, ret, strerror(-ret));
5728 return ret;
5729 }
5731 ifidx = if_nametoindex(ifname);
5732 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d",
5733 ifname, ifidx);
5735 if (ifidx <= 0)
5736 return -1;
5738 /* start listening for EAPOL on this interface */
5739 add_ifidx(drv, ifidx);
5741 if (addr && iftype != NL80211_IFTYPE_MONITOR &&
5742 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) {
5743 nl80211_remove_iface(drv, ifidx);
5744 return -1;
5745 }
5747 return ifidx;
5748 }
5751 static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
5752 const char *ifname, enum nl80211_iftype iftype,
5753 const u8 *addr, int wds)
5754 {
5755 int ret;
5757 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds);
5759 /* if error occurred and interface exists already */
5760 if (ret == -ENFILE && if_nametoindex(ifname)) {
5761 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname);
5763 /* Try to remove the interface that was already there. */
5764 nl80211_remove_iface(drv, if_nametoindex(ifname));
5766 /* Try to create the interface again */
5767 ret = nl80211_create_iface_once(drv, ifname, iftype, addr,
5768 wds);
5769 }
5771 if (ret >= 0 && is_p2p_interface(iftype))
5772 nl80211_disable_11b_rates(drv, ret, 1);
5774 return ret;
5775 }
5778 static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok)
5779 {
5780 struct ieee80211_hdr *hdr;
5781 u16 fc;
5782 union wpa_event_data event;
5784 hdr = (struct ieee80211_hdr *) buf;
5785 fc = le_to_host16(hdr->frame_control);
5787 os_memset(&event, 0, sizeof(event));
5788 event.tx_status.type = WLAN_FC_GET_TYPE(fc);
5789 event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
5790 event.tx_status.dst = hdr->addr1;
5791 event.tx_status.data = buf;
5792 event.tx_status.data_len = len;
5793 event.tx_status.ack = ok;
5794 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event);
5795 }
5798 static void from_unknown_sta(struct wpa_driver_nl80211_data *drv,
5799 u8 *buf, size_t len)
5800 {
5801 struct ieee80211_hdr *hdr = (void *)buf;
5802 u16 fc;
5803 union wpa_event_data event;
5805 if (len < sizeof(*hdr))
5806 return;
5808 fc = le_to_host16(hdr->frame_control);
5810 os_memset(&event, 0, sizeof(event));
5811 event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len);
5812 event.rx_from_unknown.addr = hdr->addr2;
5813 event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) ==
5814 (WLAN_FC_FROMDS | WLAN_FC_TODS);
5815 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event);
5816 }
5819 static void handle_frame(struct wpa_driver_nl80211_data *drv,
5820 u8 *buf, size_t len, int datarate, int ssi_signal)
5821 {
5822 struct ieee80211_hdr *hdr;
5823 u16 fc;
5824 union wpa_event_data event;
5826 hdr = (struct ieee80211_hdr *) buf;
5827 fc = le_to_host16(hdr->frame_control);
5829 switch (WLAN_FC_GET_TYPE(fc)) {
5830 case WLAN_FC_TYPE_MGMT:
5831 os_memset(&event, 0, sizeof(event));
5832 event.rx_mgmt.frame = buf;
5833 event.rx_mgmt.frame_len = len;
5834 event.rx_mgmt.datarate = datarate;
5835 event.rx_mgmt.ssi_signal = ssi_signal;
5836 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
5837 break;
5838 case WLAN_FC_TYPE_CTRL:
5839 /* can only get here with PS-Poll frames */
5840 wpa_printf(MSG_DEBUG, "CTRL");
5841 from_unknown_sta(drv, buf, len);
5842 break;
5843 case WLAN_FC_TYPE_DATA:
5844 from_unknown_sta(drv, buf, len);
5845 break;
5846 }
5847 }
5850 static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx)
5851 {
5852 struct wpa_driver_nl80211_data *drv = eloop_ctx;
5853 int len;
5854 unsigned char buf[3000];
5855 struct ieee80211_radiotap_iterator iter;
5856 int ret;
5857 int datarate = 0, ssi_signal = 0;
5858 int injected = 0, failed = 0, rxflags = 0;
5860 len = recv(sock, buf, sizeof(buf), 0);
5861 if (len < 0) {
5862 perror("recv");
5863 return;
5864 }
5866 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) {
5867 printf("received invalid radiotap frame\n");
5868 return;
5869 }
5871 while (1) {
5872 ret = ieee80211_radiotap_iterator_next(&iter);
5873 if (ret == -ENOENT)
5874 break;
5875 if (ret) {
5876 printf("received invalid radiotap frame (%d)\n", ret);
5877 return;
5878 }
5879 switch (iter.this_arg_index) {
5880 case IEEE80211_RADIOTAP_FLAGS:
5881 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS)
5882 len -= 4;
5883 break;
5884 case IEEE80211_RADIOTAP_RX_FLAGS:
5885 rxflags = 1;
5886 break;
5887 case IEEE80211_RADIOTAP_TX_FLAGS:
5888 injected = 1;
5889 failed = le_to_host16((*(uint16_t *) iter.this_arg)) &
5890 IEEE80211_RADIOTAP_F_TX_FAIL;
5891 break;
5892 case IEEE80211_RADIOTAP_DATA_RETRIES:
5893 break;
5894 case IEEE80211_RADIOTAP_CHANNEL:
5895 /* TODO: convert from freq/flags to channel number */
5896 break;
5897 case IEEE80211_RADIOTAP_RATE:
5898 datarate = *iter.this_arg * 5;
5899 break;
5900 case IEEE80211_RADIOTAP_DB_ANTSIGNAL:
5901 ssi_signal = *iter.this_arg;
5902 break;
5903 }
5904 }
5906 if (rxflags && injected)
5907 return;
5909 if (!injected)
5910 handle_frame(drv, buf + iter.max_length,
5911 len - iter.max_length, datarate, ssi_signal);
5912 else
5913 handle_tx_callback(drv->ctx, buf + iter.max_length,
5914 len - iter.max_length, !failed);
5915 }
5918 /*
5919 * we post-process the filter code later and rewrite
5920 * this to the offset to the last instruction
5921 */
5922 #define PASS 0xFF
5923 #define FAIL 0xFE
5925 static struct sock_filter msock_filter_insns[] = {
5926 /*
5927 * do a little-endian load of the radiotap length field
5928 */
5929 /* load lower byte into A */
5930 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2),
5931 /* put it into X (== index register) */
5932 BPF_STMT(BPF_MISC| BPF_TAX, 0),
5933 /* load upper byte into A */
5934 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3),
5935 /* left-shift it by 8 */
5936 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8),
5937 /* or with X */
5938 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0),
5939 /* put result into X */
5940 BPF_STMT(BPF_MISC| BPF_TAX, 0),
5942 /*
5943 * Allow management frames through, this also gives us those
5944 * management frames that we sent ourselves with status
5945 */
5946 /* load the lower byte of the IEEE 802.11 frame control field */
5947 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
5948 /* mask off frame type and version */
5949 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF),
5950 /* accept frame if it's both 0, fall through otherwise */
5951 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0),
5953 /*
5954 * TODO: add a bit to radiotap RX flags that indicates
5955 * that the sending station is not associated, then
5956 * add a filter here that filters on our DA and that flag
5957 * to allow us to deauth frames to that bad station.
5958 *
5959 * For now allow all To DS data frames through.
5960 */
5961 /* load the IEEE 802.11 frame control field */
5962 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0),
5963 /* mask off frame type, version and DS status */
5964 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03),
5965 /* accept frame if version 0, type 2 and To DS, fall through otherwise
5966 */
5967 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0),
5969 #if 0
5970 /*
5971 * drop non-data frames
5972 */
5973 /* load the lower byte of the frame control field */
5974 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
5975 /* mask off QoS bit */
5976 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c),
5977 /* drop non-data frames */
5978 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL),
5979 #endif
5980 /* load the upper byte of the frame control field */
5981 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1),
5982 /* mask off toDS/fromDS */
5983 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03),
5984 /* accept WDS frames */
5985 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0),
5987 /*
5988 * add header length to index
5989 */
5990 /* load the lower byte of the frame control field */
5991 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
5992 /* mask off QoS bit */
5993 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80),
5994 /* right shift it by 6 to give 0 or 2 */
5995 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6),
5996 /* add data frame header length */
5997 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24),
5998 /* add index, was start of 802.11 header */
5999 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0),
6000 /* move to index, now start of LL header */
6001 BPF_STMT(BPF_MISC | BPF_TAX, 0),
6003 /*
6004 * Accept empty data frames, we use those for
6005 * polling activity.
6006 */
6007 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0),
6008 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0),
6010 /*
6011 * Accept EAPOL frames
6012 */
6013 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0),
6014 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL),
6015 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4),
6016 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL),
6018 /* keep these last two statements or change the code below */
6019 /* return 0 == "DROP" */
6020 BPF_STMT(BPF_RET | BPF_K, 0),
6021 /* return ~0 == "keep all" */
6022 BPF_STMT(BPF_RET | BPF_K, ~0),
6023 };
6025 static struct sock_fprog msock_filter = {
6026 .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]),
6027 .filter = msock_filter_insns,
6028 };
6031 static int add_monitor_filter(int s)
6032 {
6033 int idx;
6035 /* rewrite all PASS/FAIL jump offsets */
6036 for (idx = 0; idx < msock_filter.len; idx++) {
6037 struct sock_filter *insn = &msock_filter_insns[idx];
6039 if (BPF_CLASS(insn->code) == BPF_JMP) {
6040 if (insn->code == (BPF_JMP|BPF_JA)) {
6041 if (insn->k == PASS)
6042 insn->k = msock_filter.len - idx - 2;
6043 else if (insn->k == FAIL)
6044 insn->k = msock_filter.len - idx - 3;
6045 }
6047 if (insn->jt == PASS)
6048 insn->jt = msock_filter.len - idx - 2;
6049 else if (insn->jt == FAIL)
6050 insn->jt = msock_filter.len - idx - 3;
6052 if (insn->jf == PASS)
6053 insn->jf = msock_filter.len - idx - 2;
6054 else if (insn->jf == FAIL)
6055 insn->jf = msock_filter.len - idx - 3;
6056 }
6057 }
6059 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER,
6060 &msock_filter, sizeof(msock_filter))) {
6061 perror("SO_ATTACH_FILTER");
6062 return -1;
6063 }
6065 return 0;
6066 }
6069 static void nl80211_remove_monitor_interface(
6070 struct wpa_driver_nl80211_data *drv)
6071 {
6072 drv->monitor_refcount--;
6073 if (drv->monitor_refcount > 0)
6074 return;
6076 if (drv->monitor_ifidx >= 0) {
6077 nl80211_remove_iface(drv, drv->monitor_ifidx);
6078 drv->monitor_ifidx = -1;
6079 }
6080 if (drv->monitor_sock >= 0) {
6081 eloop_unregister_read_sock(drv->monitor_sock);
6082 close(drv->monitor_sock);
6083 drv->monitor_sock = -1;
6084 }
6085 }
6088 static int
6089 nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv)
6090 {
6091 char buf[IFNAMSIZ];
6092 struct sockaddr_ll ll;
6093 int optval;
6094 socklen_t optlen;
6096 if (drv->monitor_ifidx >= 0) {
6097 drv->monitor_refcount++;
6098 return 0;
6099 }
6101 if (os_strncmp(drv->first_bss.ifname, "p2p-", 4) == 0) {
6102 /*
6103 * P2P interface name is of the format p2p-%s-%d. For monitor
6104 * interface name corresponding to P2P GO, replace "p2p-" with
6105 * "mon-" to retain the same interface name length and to
6106 * indicate that it is a monitor interface.
6107 */
6108 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss.ifname + 4);
6109 } else {
6110 /* Non-P2P interface with AP functionality. */
6111 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss.ifname);
6112 }
6114 buf[IFNAMSIZ - 1] = '\0';
6116 drv->monitor_ifidx =
6117 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL,
6118 0);
6120 if (drv->monitor_ifidx == -EOPNOTSUPP) {
6121 /*
6122 * This is backward compatibility for a few versions of
6123 * the kernel only that didn't advertise the right
6124 * attributes for the only driver that then supported
6125 * AP mode w/o monitor -- ath6kl.
6126 */
6127 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support "
6128 "monitor interface type - try to run without it");
6129 drv->device_ap_sme = 1;
6130 }
6132 if (drv->monitor_ifidx < 0)
6133 return -1;
6135 if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1))
6136 goto error;
6138 memset(&ll, 0, sizeof(ll));
6139 ll.sll_family = AF_PACKET;
6140 ll.sll_ifindex = drv->monitor_ifidx;
6141 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
6142 if (drv->monitor_sock < 0) {
6143 perror("socket[PF_PACKET,SOCK_RAW]");
6144 goto error;
6145 }
6147 if (add_monitor_filter(drv->monitor_sock)) {
6148 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor "
6149 "interface; do filtering in user space");
6150 /* This works, but will cost in performance. */
6151 }
6153 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) {
6154 perror("monitor socket bind");
6155 goto error;
6156 }
6158 optlen = sizeof(optval);
6159 optval = 20;
6160 if (setsockopt
6161 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) {
6162 perror("Failed to set socket priority");
6163 goto error;
6164 }
6166 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read,
6167 drv, NULL)) {
6168 printf("Could not register monitor read socket\n");
6169 goto error;
6170 }
6172 return 0;
6173 error:
6174 nl80211_remove_monitor_interface(drv);
6175 return -1;
6176 }
6179 static int nl80211_setup_ap(struct i802_bss *bss)
6180 {
6181 struct wpa_driver_nl80211_data *drv = bss->drv;
6183 wpa_printf(MSG_DEBUG, "nl80211: Setup AP - device_ap_sme=%d "
6184 "use_monitor=%d", drv->device_ap_sme, drv->use_monitor);
6186 /*
6187 * Disable Probe Request reporting unless we need it in this way for
6188 * devices that include the AP SME, in the other case (unless using
6189 * monitor iface) we'll get it through the nl_mgmt socket instead.
6190 */
6191 if (!drv->device_ap_sme)
6192 wpa_driver_nl80211_probe_req_report(bss, 0);
6194 if (!drv->device_ap_sme && !drv->use_monitor)
6195 if (nl80211_mgmt_subscribe_ap(bss))
6196 return -1;
6198 if (drv->device_ap_sme && !drv->use_monitor)
6199 if (nl80211_mgmt_subscribe_ap_dev_sme(bss))
6200 return -1;
6202 if (!drv->device_ap_sme && drv->use_monitor &&
6203 nl80211_create_monitor_interface(drv) &&
6204 !drv->device_ap_sme)
6205 return -1;
6207 if (drv->device_ap_sme &&
6208 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) {
6209 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable "
6210 "Probe Request frame reporting in AP mode");
6211 /* Try to survive without this */
6212 }
6214 return 0;
6215 }
6218 static void nl80211_teardown_ap(struct i802_bss *bss)
6219 {
6220 struct wpa_driver_nl80211_data *drv = bss->drv;
6222 if (drv->device_ap_sme) {
6223 wpa_driver_nl80211_probe_req_report(bss, 0);
6224 if (!drv->use_monitor)
6225 nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)");
6226 } else if (drv->use_monitor)
6227 nl80211_remove_monitor_interface(drv);
6228 else
6229 nl80211_mgmt_unsubscribe(bss, "AP teardown");
6231 bss->beacon_set = 0;
6232 }
6235 static int nl80211_send_eapol_data(struct i802_bss *bss,
6236 const u8 *addr, const u8 *data,
6237 size_t data_len)
6238 {
6239 struct sockaddr_ll ll;
6240 int ret;
6242 if (bss->drv->eapol_tx_sock < 0) {
6243 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL");
6244 return -1;
6245 }
6247 os_memset(&ll, 0, sizeof(ll));
6248 ll.sll_family = AF_PACKET;
6249 ll.sll_ifindex = bss->ifindex;
6250 ll.sll_protocol = htons(ETH_P_PAE);
6251 ll.sll_halen = ETH_ALEN;
6252 os_memcpy(ll.sll_addr, addr, ETH_ALEN);
6253 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0,
6254 (struct sockaddr *) &ll, sizeof(ll));
6255 if (ret < 0)
6256 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s",
6257 strerror(errno));
6259 return ret;
6260 }
6263 static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
6265 static int wpa_driver_nl80211_hapd_send_eapol(
6266 void *priv, const u8 *addr, const u8 *data,
6267 size_t data_len, int encrypt, const u8 *own_addr, u32 flags)
6268 {
6269 struct i802_bss *bss = priv;
6270 struct wpa_driver_nl80211_data *drv = bss->drv;
6271 struct ieee80211_hdr *hdr;
6272 size_t len;
6273 u8 *pos;
6274 int res;
6275 int qos = flags & WPA_STA_WMM;
6277 if (drv->device_ap_sme || !drv->use_monitor)
6278 return nl80211_send_eapol_data(bss, addr, data, data_len);
6280 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 +
6281 data_len;
6282 hdr = os_zalloc(len);
6283 if (hdr == NULL) {
6284 printf("malloc() failed for i802_send_data(len=%lu)\n",
6285 (unsigned long) len);
6286 return -1;
6287 }
6289 hdr->frame_control =
6290 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA);
6291 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS);
6292 if (encrypt)
6293 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP);
6294 if (qos) {
6295 hdr->frame_control |=
6296 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4);
6297 }
6299 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN);
6300 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
6301 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
6302 pos = (u8 *) (hdr + 1);
6304 if (qos) {
6305 /* add an empty QoS header if needed */
6306 pos[0] = 0;
6307 pos[1] = 0;
6308 pos += 2;
6309 }
6311 memcpy(pos, rfc1042_header, sizeof(rfc1042_header));
6312 pos += sizeof(rfc1042_header);
6313 WPA_PUT_BE16(pos, ETH_P_PAE);
6314 pos += 2;
6315 memcpy(pos, data, data_len);
6317 res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0,
6318 0, 0, 0, 0);
6319 if (res < 0) {
6320 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - "
6321 "failed: %d (%s)",
6322 (unsigned long) len, errno, strerror(errno));
6323 }
6324 os_free(hdr);
6326 return res;
6327 }
6330 static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr,
6331 int total_flags,
6332 int flags_or, int flags_and)
6333 {
6334 struct i802_bss *bss = priv;
6335 struct wpa_driver_nl80211_data *drv = bss->drv;
6336 struct nl_msg *msg, *flags = NULL;
6337 struct nl80211_sta_flag_update upd;
6339 msg = nlmsg_alloc();
6340 if (!msg)
6341 return -ENOMEM;
6343 flags = nlmsg_alloc();
6344 if (!flags) {
6345 nlmsg_free(msg);
6346 return -ENOMEM;
6347 }
6349 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
6351 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
6352 if_nametoindex(bss->ifname));
6353 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6355 /*
6356 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This
6357 * can be removed eventually.
6358 */
6359 if (total_flags & WPA_STA_AUTHORIZED)
6360 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_AUTHORIZED);
6362 if (total_flags & WPA_STA_WMM)
6363 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_WME);
6365 if (total_flags & WPA_STA_SHORT_PREAMBLE)
6366 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_SHORT_PREAMBLE);
6368 if (total_flags & WPA_STA_MFP)
6369 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_MFP);
6371 if (total_flags & WPA_STA_TDLS_PEER)
6372 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_TDLS_PEER);
6374 if (nla_put_nested(msg, NL80211_ATTR_STA_FLAGS, flags))
6375 goto nla_put_failure;
6377 os_memset(&upd, 0, sizeof(upd));
6378 upd.mask = sta_flags_nl80211(flags_or | ~flags_and);
6379 upd.set = sta_flags_nl80211(flags_or);
6380 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
6382 nlmsg_free(flags);
6384 return send_and_recv_msgs(drv, msg, NULL, NULL);
6385 nla_put_failure:
6386 nlmsg_free(msg);
6387 nlmsg_free(flags);
6388 return -ENOBUFS;
6389 }
6392 static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv,
6393 struct wpa_driver_associate_params *params)
6394 {
6395 enum nl80211_iftype nlmode;
6397 if (params->p2p) {
6398 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P "
6399 "group (GO)");
6400 nlmode = NL80211_IFTYPE_P2P_GO;
6401 } else
6402 nlmode = NL80211_IFTYPE_AP;
6404 if (wpa_driver_nl80211_set_mode(&drv->first_bss, nlmode) ||
6405 wpa_driver_nl80211_set_freq(&drv->first_bss, params->freq, 0, 0)) {
6406 nl80211_remove_monitor_interface(drv);
6407 return -1;
6408 }
6410 return 0;
6411 }
6414 static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv)
6415 {
6416 struct nl_msg *msg;
6417 int ret = -1;
6419 msg = nlmsg_alloc();
6420 if (!msg)
6421 return -1;
6423 nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS);
6424 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6425 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6426 msg = NULL;
6427 if (ret) {
6428 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d "
6429 "(%s)", ret, strerror(-ret));
6430 goto nla_put_failure;
6431 }
6433 ret = 0;
6434 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully");
6436 nla_put_failure:
6437 nlmsg_free(msg);
6438 return ret;
6439 }
6442 static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv,
6443 struct wpa_driver_associate_params *params)
6444 {
6445 struct nl_msg *msg;
6446 int ret = -1;
6447 int count = 0;
6449 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex);
6451 if (wpa_driver_nl80211_set_mode(&drv->first_bss,
6452 NL80211_IFTYPE_ADHOC)) {
6453 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into "
6454 "IBSS mode");
6455 return -1;
6456 }
6458 retry:
6459 msg = nlmsg_alloc();
6460 if (!msg)
6461 return -1;
6463 nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS);
6464 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6466 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid))
6467 goto nla_put_failure;
6469 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
6470 params->ssid, params->ssid_len);
6471 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
6472 params->ssid);
6473 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
6474 drv->ssid_len = params->ssid_len;
6476 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
6477 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
6479 ret = nl80211_set_conn_keys(params, msg);
6480 if (ret)
6481 goto nla_put_failure;
6483 if (params->bssid && params->fixed_bssid) {
6484 wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR,
6485 MAC2STR(params->bssid));
6486 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
6487 }
6489 if (params->key_mgmt_suite == KEY_MGMT_802_1X ||
6490 params->key_mgmt_suite == KEY_MGMT_PSK ||
6491 params->key_mgmt_suite == KEY_MGMT_802_1X_SHA256 ||
6492 params->key_mgmt_suite == KEY_MGMT_PSK_SHA256) {
6493 wpa_printf(MSG_DEBUG, " * control port");
6494 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
6495 }
6497 if (params->wpa_ie) {
6498 wpa_hexdump(MSG_DEBUG,
6499 " * Extra IEs for Beacon/Probe Response frames",
6500 params->wpa_ie, params->wpa_ie_len);
6501 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
6502 params->wpa_ie);
6503 }
6505 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6506 msg = NULL;
6507 if (ret) {
6508 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)",
6509 ret, strerror(-ret));
6510 count++;
6511 if (ret == -EALREADY && count == 1) {
6512 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after "
6513 "forced leave");
6514 nl80211_leave_ibss(drv);
6515 nlmsg_free(msg);
6516 goto retry;
6517 }
6519 goto nla_put_failure;
6520 }
6521 ret = 0;
6522 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully");
6524 nla_put_failure:
6525 nlmsg_free(msg);
6526 return ret;
6527 }
6530 static unsigned int nl80211_get_assoc_bssid(struct wpa_driver_nl80211_data *drv,
6531 u8 *bssid)
6532 {
6533 struct nl_msg *msg;
6534 int ret;
6535 struct nl80211_bss_info_arg arg;
6537 os_memset(&arg, 0, sizeof(arg));
6538 msg = nlmsg_alloc();
6539 if (!msg)
6540 goto nla_put_failure;
6542 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
6543 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6545 arg.drv = drv;
6546 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
6547 msg = NULL;
6548 if (ret == 0) {
6549 if (is_zero_ether_addr(arg.assoc_bssid))
6550 return -ENOTCONN;
6551 os_memcpy(bssid, arg.assoc_bssid, ETH_ALEN);
6552 return 0;
6553 }
6554 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
6555 "(%s)", ret, strerror(-ret));
6556 nla_put_failure:
6557 nlmsg_free(msg);
6558 return drv->assoc_freq;
6559 }
6562 static int nl80211_disconnect(struct wpa_driver_nl80211_data *drv,
6563 const u8 *bssid)
6564 {
6565 u8 addr[ETH_ALEN];
6567 if (bssid == NULL) {
6568 int res = nl80211_get_assoc_bssid(drv, addr);
6569 if (res)
6570 return res;
6571 bssid = addr;
6572 }
6574 return wpa_driver_nl80211_disconnect(drv, bssid,
6575 WLAN_REASON_PREV_AUTH_NOT_VALID);
6576 }
6579 static int wpa_driver_nl80211_connect(
6580 struct wpa_driver_nl80211_data *drv,
6581 struct wpa_driver_associate_params *params)
6582 {
6583 struct nl_msg *msg;
6584 enum nl80211_auth_type type;
6585 int ret = 0;
6586 int algs;
6588 msg = nlmsg_alloc();
6589 if (!msg)
6590 return -1;
6592 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex);
6593 nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT);
6595 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6596 if (params->bssid) {
6597 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
6598 MAC2STR(params->bssid));
6599 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
6600 }
6601 if (params->freq) {
6602 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
6603 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
6604 }
6605 if (params->ssid) {
6606 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
6607 params->ssid, params->ssid_len);
6608 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
6609 params->ssid);
6610 if (params->ssid_len > sizeof(drv->ssid))
6611 goto nla_put_failure;
6612 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
6613 drv->ssid_len = params->ssid_len;
6614 }
6615 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
6616 if (params->wpa_ie)
6617 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
6618 params->wpa_ie);
6620 algs = 0;
6621 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
6622 algs++;
6623 if (params->auth_alg & WPA_AUTH_ALG_SHARED)
6624 algs++;
6625 if (params->auth_alg & WPA_AUTH_ALG_LEAP)
6626 algs++;
6627 if (algs > 1) {
6628 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic "
6629 "selection");
6630 goto skip_auth_type;
6631 }
6633 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
6634 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
6635 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
6636 type = NL80211_AUTHTYPE_SHARED_KEY;
6637 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
6638 type = NL80211_AUTHTYPE_NETWORK_EAP;
6639 else if (params->auth_alg & WPA_AUTH_ALG_FT)
6640 type = NL80211_AUTHTYPE_FT;
6641 else
6642 goto nla_put_failure;
6644 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
6645 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
6647 skip_auth_type:
6648 if (params->wpa_proto) {
6649 enum nl80211_wpa_versions ver = 0;
6651 if (params->wpa_proto & WPA_PROTO_WPA)
6652 ver |= NL80211_WPA_VERSION_1;
6653 if (params->wpa_proto & WPA_PROTO_RSN)
6654 ver |= NL80211_WPA_VERSION_2;
6656 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver);
6657 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
6658 }
6660 if (params->pairwise_suite != CIPHER_NONE) {
6661 int cipher;
6663 switch (params->pairwise_suite) {
6664 case CIPHER_WEP40:
6665 cipher = WLAN_CIPHER_SUITE_WEP40;
6666 break;
6667 case CIPHER_WEP104:
6668 cipher = WLAN_CIPHER_SUITE_WEP104;
6669 break;
6670 case CIPHER_CCMP:
6671 cipher = WLAN_CIPHER_SUITE_CCMP;
6672 break;
6673 case CIPHER_TKIP:
6674 default:
6675 cipher = WLAN_CIPHER_SUITE_TKIP;
6676 break;
6677 }
6678 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
6679 }
6681 if (params->group_suite != CIPHER_NONE) {
6682 int cipher;
6684 switch (params->group_suite) {
6685 case CIPHER_WEP40:
6686 cipher = WLAN_CIPHER_SUITE_WEP40;
6687 break;
6688 case CIPHER_WEP104:
6689 cipher = WLAN_CIPHER_SUITE_WEP104;
6690 break;
6691 case CIPHER_CCMP:
6692 cipher = WLAN_CIPHER_SUITE_CCMP;
6693 break;
6694 case CIPHER_TKIP:
6695 default:
6696 cipher = WLAN_CIPHER_SUITE_TKIP;
6697 break;
6698 }
6699 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
6700 }
6702 if (params->key_mgmt_suite == KEY_MGMT_802_1X ||
6703 params->key_mgmt_suite == KEY_MGMT_PSK) {
6704 int mgmt = WLAN_AKM_SUITE_PSK;
6706 switch (params->key_mgmt_suite) {
6707 case KEY_MGMT_802_1X:
6708 mgmt = WLAN_AKM_SUITE_8021X;
6709 break;
6710 case KEY_MGMT_PSK:
6711 default:
6712 mgmt = WLAN_AKM_SUITE_PSK;
6713 break;
6714 }
6715 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt);
6716 }
6718 if (params->disable_ht)
6719 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT);
6721 if (params->htcaps && params->htcaps_mask) {
6722 int sz = sizeof(struct ieee80211_ht_capabilities);
6723 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps);
6724 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz,
6725 params->htcaps_mask);
6726 }
6728 ret = nl80211_set_conn_keys(params, msg);
6729 if (ret)
6730 goto nla_put_failure;
6732 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6733 msg = NULL;
6734 if (ret) {
6735 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d "
6736 "(%s)", ret, strerror(-ret));
6737 /*
6738 * cfg80211 does not currently accept new connection if we are
6739 * already connected. As a workaround, force disconnection and
6740 * try again once the driver indicates it completed
6741 * disconnection.
6742 */
6743 if (ret == -EALREADY)
6744 nl80211_disconnect(drv, params->bssid);
6745 goto nla_put_failure;
6746 }
6747 ret = 0;
6748 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully");
6750 nla_put_failure:
6751 nlmsg_free(msg);
6752 return ret;
6754 }
6757 static int wpa_driver_nl80211_associate(
6758 void *priv, struct wpa_driver_associate_params *params)
6759 {
6760 struct i802_bss *bss = priv;
6761 struct wpa_driver_nl80211_data *drv = bss->drv;
6762 int ret = -1;
6763 struct nl_msg *msg;
6765 if (params->mode == IEEE80211_MODE_AP)
6766 return wpa_driver_nl80211_ap(drv, params);
6768 if (params->mode == IEEE80211_MODE_IBSS)
6769 return wpa_driver_nl80211_ibss(drv, params);
6771 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) {
6772 enum nl80211_iftype nlmode = params->p2p ?
6773 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
6775 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0)
6776 return -1;
6777 return wpa_driver_nl80211_connect(drv, params);
6778 }
6780 drv->associated = 0;
6782 msg = nlmsg_alloc();
6783 if (!msg)
6784 return -1;
6786 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)",
6787 drv->ifindex);
6788 nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE);
6790 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6791 if (params->bssid) {
6792 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
6793 MAC2STR(params->bssid));
6794 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
6795 }
6796 if (params->freq) {
6797 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
6798 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
6799 drv->assoc_freq = params->freq;
6800 } else
6801 drv->assoc_freq = 0;
6802 if (params->ssid) {
6803 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
6804 params->ssid, params->ssid_len);
6805 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
6806 params->ssid);
6807 if (params->ssid_len > sizeof(drv->ssid))
6808 goto nla_put_failure;
6809 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
6810 drv->ssid_len = params->ssid_len;
6811 }
6812 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
6813 if (params->wpa_ie)
6814 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
6815 params->wpa_ie);
6817 if (params->pairwise_suite != CIPHER_NONE) {
6818 int cipher;
6820 switch (params->pairwise_suite) {
6821 case CIPHER_WEP40:
6822 cipher = WLAN_CIPHER_SUITE_WEP40;
6823 break;
6824 case CIPHER_WEP104:
6825 cipher = WLAN_CIPHER_SUITE_WEP104;
6826 break;
6827 case CIPHER_CCMP:
6828 cipher = WLAN_CIPHER_SUITE_CCMP;
6829 break;
6830 case CIPHER_TKIP:
6831 default:
6832 cipher = WLAN_CIPHER_SUITE_TKIP;
6833 break;
6834 }
6835 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher);
6836 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
6837 }
6839 if (params->group_suite != CIPHER_NONE) {
6840 int cipher;
6842 switch (params->group_suite) {
6843 case CIPHER_WEP40:
6844 cipher = WLAN_CIPHER_SUITE_WEP40;
6845 break;
6846 case CIPHER_WEP104:
6847 cipher = WLAN_CIPHER_SUITE_WEP104;
6848 break;
6849 case CIPHER_CCMP:
6850 cipher = WLAN_CIPHER_SUITE_CCMP;
6851 break;
6852 case CIPHER_TKIP:
6853 default:
6854 cipher = WLAN_CIPHER_SUITE_TKIP;
6855 break;
6856 }
6857 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher);
6858 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
6859 }
6861 #ifdef CONFIG_IEEE80211W
6862 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED)
6863 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED);
6864 #endif /* CONFIG_IEEE80211W */
6866 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
6868 if (params->prev_bssid) {
6869 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR,
6870 MAC2STR(params->prev_bssid));
6871 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN,
6872 params->prev_bssid);
6873 }
6875 if (params->disable_ht)
6876 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT);
6878 if (params->htcaps && params->htcaps_mask) {
6879 int sz = sizeof(struct ieee80211_ht_capabilities);
6880 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps);
6881 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz,
6882 params->htcaps_mask);
6883 }
6885 if (params->p2p)
6886 wpa_printf(MSG_DEBUG, " * P2P group");
6888 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6889 msg = NULL;
6890 if (ret) {
6891 wpa_dbg(drv->ctx, MSG_DEBUG,
6892 "nl80211: MLME command failed (assoc): ret=%d (%s)",
6893 ret, strerror(-ret));
6894 nl80211_dump_scan(drv);
6895 goto nla_put_failure;
6896 }
6897 ret = 0;
6898 wpa_printf(MSG_DEBUG, "nl80211: Association request send "
6899 "successfully");
6901 nla_put_failure:
6902 nlmsg_free(msg);
6903 return ret;
6904 }
6907 static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv,
6908 int ifindex, enum nl80211_iftype mode)
6909 {
6910 struct nl_msg *msg;
6911 int ret = -ENOBUFS;
6913 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)",
6914 ifindex, mode, nl80211_iftype_str(mode));
6916 msg = nlmsg_alloc();
6917 if (!msg)
6918 return -ENOMEM;
6920 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE);
6921 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
6922 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode);
6924 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6925 msg = NULL;
6926 if (!ret)
6927 return 0;
6928 nla_put_failure:
6929 nlmsg_free(msg);
6930 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:"
6931 " %d (%s)", ifindex, mode, ret, strerror(-ret));
6932 return ret;
6933 }
6936 static int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
6937 enum nl80211_iftype nlmode)
6938 {
6939 struct wpa_driver_nl80211_data *drv = bss->drv;
6940 int ret = -1;
6941 int i;
6942 int was_ap = is_ap_interface(drv->nlmode);
6943 int res;
6945 res = nl80211_set_mode(drv, drv->ifindex, nlmode);
6946 if (res == 0) {
6947 drv->nlmode = nlmode;
6948 ret = 0;
6949 goto done;
6950 }
6952 if (res == -ENODEV)
6953 return -1;
6955 if (nlmode == drv->nlmode) {
6956 wpa_printf(MSG_DEBUG, "nl80211: Interface already in "
6957 "requested mode - ignore error");
6958 ret = 0;
6959 goto done; /* Already in the requested mode */
6960 }
6962 /* mac80211 doesn't allow mode changes while the device is up, so
6963 * take the device down, try to set the mode again, and bring the
6964 * device back up.
6965 */
6966 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting "
6967 "interface down");
6968 for (i = 0; i < 10; i++) {
6969 res = linux_set_iface_flags(drv->global->ioctl_sock,
6970 bss->ifname, 0);
6971 if (res == -EACCES || res == -ENODEV)
6972 break;
6973 if (res == 0) {
6974 /* Try to set the mode again while the interface is
6975 * down */
6976 ret = nl80211_set_mode(drv, drv->ifindex, nlmode);
6977 if (ret == -EACCES)
6978 break;
6979 res = linux_set_iface_flags(drv->global->ioctl_sock,
6980 bss->ifname, 1);
6981 if (res && !ret)
6982 ret = -1;
6983 else if (ret != -EBUSY)
6984 break;
6985 } else
6986 wpa_printf(MSG_DEBUG, "nl80211: Failed to set "
6987 "interface down");
6988 os_sleep(0, 100000);
6989 }
6991 if (!ret) {
6992 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while "
6993 "interface is down");
6994 drv->nlmode = nlmode;
6995 drv->ignore_if_down_event = 1;
6996 }
6998 done:
6999 if (ret) {
7000 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d "
7001 "from %d failed", nlmode, drv->nlmode);
7002 return ret;
7003 }
7005 if (is_ap_interface(nlmode)) {
7006 nl80211_mgmt_unsubscribe(bss, "start AP");
7007 /* Setup additional AP mode functionality if needed */
7008 if (nl80211_setup_ap(bss))
7009 return -1;
7010 } else if (was_ap) {
7011 /* Remove additional AP mode functionality */
7012 nl80211_teardown_ap(bss);
7013 } else {
7014 nl80211_mgmt_unsubscribe(bss, "mode change");
7015 }
7017 if (!is_ap_interface(nlmode) &&
7018 nl80211_mgmt_subscribe_non_ap(bss) < 0)
7019 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action "
7020 "frame processing - ignore for now");
7022 return 0;
7023 }
7026 static int wpa_driver_nl80211_get_capa(void *priv,
7027 struct wpa_driver_capa *capa)
7028 {
7029 struct i802_bss *bss = priv;
7030 struct wpa_driver_nl80211_data *drv = bss->drv;
7031 if (!drv->has_capability)
7032 return -1;
7033 os_memcpy(capa, &drv->capa, sizeof(*capa));
7034 return 0;
7035 }
7038 static int wpa_driver_nl80211_set_operstate(void *priv, int state)
7039 {
7040 struct i802_bss *bss = priv;
7041 struct wpa_driver_nl80211_data *drv = bss->drv;
7043 wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)",
7044 __func__, drv->operstate, state, state ? "UP" : "DORMANT");
7045 drv->operstate = state;
7046 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1,
7047 state ? IF_OPER_UP : IF_OPER_DORMANT);
7048 }
7051 static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized)
7052 {
7053 struct i802_bss *bss = priv;
7054 struct wpa_driver_nl80211_data *drv = bss->drv;
7055 struct nl_msg *msg;
7056 struct nl80211_sta_flag_update upd;
7058 msg = nlmsg_alloc();
7059 if (!msg)
7060 return -ENOMEM;
7062 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
7064 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
7065 if_nametoindex(bss->ifname));
7066 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
7068 os_memset(&upd, 0, sizeof(upd));
7069 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED);
7070 if (authorized)
7071 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED);
7072 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
7074 return send_and_recv_msgs(drv, msg, NULL, NULL);
7075 nla_put_failure:
7076 nlmsg_free(msg);
7077 return -ENOBUFS;
7078 }
7081 /* Set kernel driver on given frequency (MHz) */
7082 static int i802_set_freq(void *priv, struct hostapd_freq_params *freq)
7083 {
7084 struct i802_bss *bss = priv;
7085 return wpa_driver_nl80211_set_freq(bss, freq->freq, freq->ht_enabled,
7086 freq->sec_channel_offset);
7087 }
7090 #if defined(HOSTAPD) || defined(CONFIG_AP)
7092 static inline int min_int(int a, int b)
7093 {
7094 if (a < b)
7095 return a;
7096 return b;
7097 }
7100 static int get_key_handler(struct nl_msg *msg, void *arg)
7101 {
7102 struct nlattr *tb[NL80211_ATTR_MAX + 1];
7103 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
7105 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
7106 genlmsg_attrlen(gnlh, 0), NULL);
7108 /*
7109 * TODO: validate the key index and mac address!
7110 * Otherwise, there's a race condition as soon as
7111 * the kernel starts sending key notifications.
7112 */
7114 if (tb[NL80211_ATTR_KEY_SEQ])
7115 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]),
7116 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6));
7117 return NL_SKIP;
7118 }
7121 static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
7122 int idx, u8 *seq)
7123 {
7124 struct i802_bss *bss = priv;
7125 struct wpa_driver_nl80211_data *drv = bss->drv;
7126 struct nl_msg *msg;
7128 msg = nlmsg_alloc();
7129 if (!msg)
7130 return -ENOMEM;
7132 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY);
7134 if (addr)
7135 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7136 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
7137 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
7139 memset(seq, 0, 6);
7141 return send_and_recv_msgs(drv, msg, get_key_handler, seq);
7142 nla_put_failure:
7143 nlmsg_free(msg);
7144 return -ENOBUFS;
7145 }
7148 static int i802_set_rts(void *priv, int rts)
7149 {
7150 struct i802_bss *bss = priv;
7151 struct wpa_driver_nl80211_data *drv = bss->drv;
7152 struct nl_msg *msg;
7153 int ret = -ENOBUFS;
7154 u32 val;
7156 msg = nlmsg_alloc();
7157 if (!msg)
7158 return -ENOMEM;
7160 if (rts >= 2347)
7161 val = (u32) -1;
7162 else
7163 val = rts;
7165 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
7166 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
7167 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val);
7169 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7170 msg = NULL;
7171 if (!ret)
7172 return 0;
7173 nla_put_failure:
7174 nlmsg_free(msg);
7175 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: "
7176 "%d (%s)", rts, ret, strerror(-ret));
7177 return ret;
7178 }
7181 static int i802_set_frag(void *priv, int frag)
7182 {
7183 struct i802_bss *bss = priv;
7184 struct wpa_driver_nl80211_data *drv = bss->drv;
7185 struct nl_msg *msg;
7186 int ret = -ENOBUFS;
7187 u32 val;
7189 msg = nlmsg_alloc();
7190 if (!msg)
7191 return -ENOMEM;
7193 if (frag >= 2346)
7194 val = (u32) -1;
7195 else
7196 val = frag;
7198 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
7199 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
7200 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val);
7202 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7203 msg = NULL;
7204 if (!ret)
7205 return 0;
7206 nla_put_failure:
7207 nlmsg_free(msg);
7208 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold "
7209 "%d: %d (%s)", frag, ret, strerror(-ret));
7210 return ret;
7211 }
7214 static int i802_flush(void *priv)
7215 {
7216 struct i802_bss *bss = priv;
7217 struct wpa_driver_nl80211_data *drv = bss->drv;
7218 struct nl_msg *msg;
7219 int res;
7221 msg = nlmsg_alloc();
7222 if (!msg)
7223 return -1;
7225 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION);
7227 /*
7228 * XXX: FIX! this needs to flush all VLANs too
7229 */
7230 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
7231 if_nametoindex(bss->ifname));
7233 res = send_and_recv_msgs(drv, msg, NULL, NULL);
7234 if (res) {
7235 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d "
7236 "(%s)", res, strerror(-res));
7237 }
7238 return res;
7239 nla_put_failure:
7240 nlmsg_free(msg);
7241 return -ENOBUFS;
7242 }
7245 static int get_sta_handler(struct nl_msg *msg, void *arg)
7246 {
7247 struct nlattr *tb[NL80211_ATTR_MAX + 1];
7248 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
7249 struct hostap_sta_driver_data *data = arg;
7250 struct nlattr *stats[NL80211_STA_INFO_MAX + 1];
7251 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
7252 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
7253 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
7254 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
7255 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
7256 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
7257 };
7259 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
7260 genlmsg_attrlen(gnlh, 0), NULL);
7262 /*
7263 * TODO: validate the interface and mac address!
7264 * Otherwise, there's a race condition as soon as
7265 * the kernel starts sending station notifications.
7266 */
7268 if (!tb[NL80211_ATTR_STA_INFO]) {
7269 wpa_printf(MSG_DEBUG, "sta stats missing!");
7270 return NL_SKIP;
7271 }
7272 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX,
7273 tb[NL80211_ATTR_STA_INFO],
7274 stats_policy)) {
7275 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!");
7276 return NL_SKIP;
7277 }
7279 if (stats[NL80211_STA_INFO_INACTIVE_TIME])
7280 data->inactive_msec =
7281 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]);
7282 if (stats[NL80211_STA_INFO_RX_BYTES])
7283 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]);
7284 if (stats[NL80211_STA_INFO_TX_BYTES])
7285 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]);
7286 if (stats[NL80211_STA_INFO_RX_PACKETS])
7287 data->rx_packets =
7288 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]);
7289 if (stats[NL80211_STA_INFO_TX_PACKETS])
7290 data->tx_packets =
7291 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]);
7293 return NL_SKIP;
7294 }
7296 static int i802_read_sta_data(void *priv, struct hostap_sta_driver_data *data,
7297 const u8 *addr)
7298 {
7299 struct i802_bss *bss = priv;
7300 struct wpa_driver_nl80211_data *drv = bss->drv;
7301 struct nl_msg *msg;
7303 os_memset(data, 0, sizeof(*data));
7304 msg = nlmsg_alloc();
7305 if (!msg)
7306 return -ENOMEM;
7308 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION);
7310 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7311 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
7313 return send_and_recv_msgs(drv, msg, get_sta_handler, data);
7314 nla_put_failure:
7315 nlmsg_free(msg);
7316 return -ENOBUFS;
7317 }
7320 static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
7321 int cw_min, int cw_max, int burst_time)
7322 {
7323 struct i802_bss *bss = priv;
7324 struct wpa_driver_nl80211_data *drv = bss->drv;
7325 struct nl_msg *msg;
7326 struct nlattr *txq, *params;
7328 msg = nlmsg_alloc();
7329 if (!msg)
7330 return -1;
7332 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
7334 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
7336 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS);
7337 if (!txq)
7338 goto nla_put_failure;
7340 /* We are only sending parameters for a single TXQ at a time */
7341 params = nla_nest_start(msg, 1);
7342 if (!params)
7343 goto nla_put_failure;
7345 switch (queue) {
7346 case 0:
7347 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO);
7348 break;
7349 case 1:
7350 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI);
7351 break;
7352 case 2:
7353 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE);
7354 break;
7355 case 3:
7356 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK);
7357 break;
7358 }
7359 /* Burst time is configured in units of 0.1 msec and TXOP parameter in
7360 * 32 usec, so need to convert the value here. */
7361 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32);
7362 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min);
7363 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max);
7364 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs);
7366 nla_nest_end(msg, params);
7368 nla_nest_end(msg, txq);
7370 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
7371 return 0;
7372 msg = NULL;
7373 nla_put_failure:
7374 nlmsg_free(msg);
7375 return -1;
7376 }
7379 static int i802_set_sta_vlan(void *priv, const u8 *addr,
7380 const char *ifname, int vlan_id)
7381 {
7382 struct i802_bss *bss = priv;
7383 struct wpa_driver_nl80211_data *drv = bss->drv;
7384 struct nl_msg *msg;
7385 int ret = -ENOBUFS;
7387 msg = nlmsg_alloc();
7388 if (!msg)
7389 return -ENOMEM;
7391 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
7393 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
7394 if_nametoindex(bss->ifname));
7395 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7396 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN,
7397 if_nametoindex(ifname));
7399 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7400 msg = NULL;
7401 if (ret < 0) {
7402 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr="
7403 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)",
7404 MAC2STR(addr), ifname, vlan_id, ret,
7405 strerror(-ret));
7406 }
7407 nla_put_failure:
7408 nlmsg_free(msg);
7409 return ret;
7410 }
7413 static int i802_get_inact_sec(void *priv, const u8 *addr)
7414 {
7415 struct hostap_sta_driver_data data;
7416 int ret;
7418 data.inactive_msec = (unsigned long) -1;
7419 ret = i802_read_sta_data(priv, &data, addr);
7420 if (ret || data.inactive_msec == (unsigned long) -1)
7421 return -1;
7422 return data.inactive_msec / 1000;
7423 }
7426 static int i802_sta_clear_stats(void *priv, const u8 *addr)
7427 {
7428 #if 0
7429 /* TODO */
7430 #endif
7431 return 0;
7432 }
7435 static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
7436 int reason)
7437 {
7438 struct i802_bss *bss = priv;
7439 struct ieee80211_mgmt mgmt;
7441 memset(&mgmt, 0, sizeof(mgmt));
7442 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
7443 WLAN_FC_STYPE_DEAUTH);
7444 memcpy(mgmt.da, addr, ETH_ALEN);
7445 memcpy(mgmt.sa, own_addr, ETH_ALEN);
7446 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
7447 mgmt.u.deauth.reason_code = host_to_le16(reason);
7448 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
7449 IEEE80211_HDRLEN +
7450 sizeof(mgmt.u.deauth), 0);
7451 }
7454 static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
7455 int reason)
7456 {
7457 struct i802_bss *bss = priv;
7458 struct ieee80211_mgmt mgmt;
7460 memset(&mgmt, 0, sizeof(mgmt));
7461 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
7462 WLAN_FC_STYPE_DISASSOC);
7463 memcpy(mgmt.da, addr, ETH_ALEN);
7464 memcpy(mgmt.sa, own_addr, ETH_ALEN);
7465 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
7466 mgmt.u.disassoc.reason_code = host_to_le16(reason);
7467 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
7468 IEEE80211_HDRLEN +
7469 sizeof(mgmt.u.disassoc), 0);
7470 }
7472 #endif /* HOSTAPD || CONFIG_AP */
7474 #ifdef HOSTAPD
7476 static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
7477 {
7478 int i;
7479 int *old;
7481 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d",
7482 ifidx);
7483 for (i = 0; i < drv->num_if_indices; i++) {
7484 if (drv->if_indices[i] == 0) {
7485 drv->if_indices[i] = ifidx;
7486 return;
7487 }
7488 }
7490 if (drv->if_indices != drv->default_if_indices)
7491 old = drv->if_indices;
7492 else
7493 old = NULL;
7495 drv->if_indices = os_realloc(old,
7496 sizeof(int) * (drv->num_if_indices + 1));
7497 if (!drv->if_indices) {
7498 if (!old)
7499 drv->if_indices = drv->default_if_indices;
7500 else
7501 drv->if_indices = old;
7502 wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
7503 "interfaces");
7504 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
7505 return;
7506 } else if (!old)
7507 os_memcpy(drv->if_indices, drv->default_if_indices,
7508 sizeof(drv->default_if_indices));
7509 drv->if_indices[drv->num_if_indices] = ifidx;
7510 drv->num_if_indices++;
7511 }
7514 static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
7515 {
7516 int i;
7518 for (i = 0; i < drv->num_if_indices; i++) {
7519 if (drv->if_indices[i] == ifidx) {
7520 drv->if_indices[i] = 0;
7521 break;
7522 }
7523 }
7524 }
7527 static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
7528 {
7529 int i;
7531 for (i = 0; i < drv->num_if_indices; i++)
7532 if (drv->if_indices[i] == ifidx)
7533 return 1;
7535 return 0;
7536 }
7539 static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val,
7540 const char *bridge_ifname)
7541 {
7542 struct i802_bss *bss = priv;
7543 struct wpa_driver_nl80211_data *drv = bss->drv;
7544 char name[IFNAMSIZ + 1];
7546 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid);
7547 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR
7548 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name);
7549 if (val) {
7550 if (!if_nametoindex(name)) {
7551 if (nl80211_create_iface(drv, name,
7552 NL80211_IFTYPE_AP_VLAN,
7553 NULL, 1) < 0)
7554 return -1;
7555 if (bridge_ifname &&
7556 linux_br_add_if(drv->global->ioctl_sock,
7557 bridge_ifname, name) < 0)
7558 return -1;
7559 }
7560 linux_set_iface_flags(drv->global->ioctl_sock, name, 1);
7561 return i802_set_sta_vlan(priv, addr, name, 0);
7562 } else {
7563 i802_set_sta_vlan(priv, addr, bss->ifname, 0);
7564 return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN,
7565 name);
7566 }
7567 }
7570 static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
7571 {
7572 struct wpa_driver_nl80211_data *drv = eloop_ctx;
7573 struct sockaddr_ll lladdr;
7574 unsigned char buf[3000];
7575 int len;
7576 socklen_t fromlen = sizeof(lladdr);
7578 len = recvfrom(sock, buf, sizeof(buf), 0,
7579 (struct sockaddr *)&lladdr, &fromlen);
7580 if (len < 0) {
7581 perror("recv");
7582 return;
7583 }
7585 if (have_ifidx(drv, lladdr.sll_ifindex))
7586 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len);
7587 }
7590 static int i802_check_bridge(struct wpa_driver_nl80211_data *drv,
7591 struct i802_bss *bss,
7592 const char *brname, const char *ifname)
7593 {
7594 int ifindex;
7595 char in_br[IFNAMSIZ];
7597 os_strlcpy(bss->brname, brname, IFNAMSIZ);
7598 ifindex = if_nametoindex(brname);
7599 if (ifindex == 0) {
7600 /*
7601 * Bridge was configured, but the bridge device does
7602 * not exist. Try to add it now.
7603 */
7604 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) {
7605 wpa_printf(MSG_ERROR, "nl80211: Failed to add the "
7606 "bridge interface %s: %s",
7607 brname, strerror(errno));
7608 return -1;
7609 }
7610 bss->added_bridge = 1;
7611 add_ifidx(drv, if_nametoindex(brname));
7612 }
7614 if (linux_br_get(in_br, ifname) == 0) {
7615 if (os_strcmp(in_br, brname) == 0)
7616 return 0; /* already in the bridge */
7618 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from "
7619 "bridge %s", ifname, in_br);
7620 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) <
7621 0) {
7622 wpa_printf(MSG_ERROR, "nl80211: Failed to "
7623 "remove interface %s from bridge "
7624 "%s: %s",
7625 ifname, brname, strerror(errno));
7626 return -1;
7627 }
7628 }
7630 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s",
7631 ifname, brname);
7632 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) {
7633 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s "
7634 "into bridge %s: %s",
7635 ifname, brname, strerror(errno));
7636 return -1;
7637 }
7638 bss->added_if_into_bridge = 1;
7640 return 0;
7641 }
7644 static void *i802_init(struct hostapd_data *hapd,
7645 struct wpa_init_params *params)
7646 {
7647 struct wpa_driver_nl80211_data *drv;
7648 struct i802_bss *bss;
7649 size_t i;
7650 char brname[IFNAMSIZ];
7651 int ifindex, br_ifindex;
7652 int br_added = 0;
7654 bss = wpa_driver_nl80211_init(hapd, params->ifname,
7655 params->global_priv);
7656 if (bss == NULL)
7657 return NULL;
7659 drv = bss->drv;
7660 drv->nlmode = NL80211_IFTYPE_AP;
7661 drv->eapol_sock = -1;
7663 if (linux_br_get(brname, params->ifname) == 0) {
7664 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s",
7665 params->ifname, brname);
7666 br_ifindex = if_nametoindex(brname);
7667 } else {
7668 brname[0] = '\0';
7669 br_ifindex = 0;
7670 }
7672 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
7673 drv->if_indices = drv->default_if_indices;
7674 for (i = 0; i < params->num_bridge; i++) {
7675 if (params->bridge[i]) {
7676 ifindex = if_nametoindex(params->bridge[i]);
7677 if (ifindex)
7678 add_ifidx(drv, ifindex);
7679 if (ifindex == br_ifindex)
7680 br_added = 1;
7681 }
7682 }
7683 if (!br_added && br_ifindex &&
7684 (params->num_bridge == 0 || !params->bridge[0]))
7685 add_ifidx(drv, br_ifindex);
7687 /* start listening for EAPOL on the default AP interface */
7688 add_ifidx(drv, drv->ifindex);
7690 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0))
7691 goto failed;
7693 if (params->bssid) {
7694 if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
7695 params->bssid))
7696 goto failed;
7697 }
7699 if (wpa_driver_nl80211_set_mode(bss, drv->nlmode)) {
7700 wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s "
7701 "into AP mode", bss->ifname);
7702 goto failed;
7703 }
7705 if (params->num_bridge && params->bridge[0] &&
7706 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0)
7707 goto failed;
7709 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1))
7710 goto failed;
7712 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE));
7713 if (drv->eapol_sock < 0) {
7714 perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)");
7715 goto failed;
7716 }
7718 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL))
7719 {
7720 printf("Could not register read socket for eapol\n");
7721 goto failed;
7722 }
7724 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
7725 params->own_addr))
7726 goto failed;
7728 memcpy(bss->addr, params->own_addr, ETH_ALEN);
7730 return bss;
7732 failed:
7733 wpa_driver_nl80211_deinit(bss);
7734 return NULL;
7735 }
7738 static void i802_deinit(void *priv)
7739 {
7740 wpa_driver_nl80211_deinit(priv);
7741 }
7743 #endif /* HOSTAPD */
7746 static enum nl80211_iftype wpa_driver_nl80211_if_type(
7747 enum wpa_driver_if_type type)
7748 {
7749 switch (type) {
7750 case WPA_IF_STATION:
7751 return NL80211_IFTYPE_STATION;
7752 case WPA_IF_P2P_CLIENT:
7753 case WPA_IF_P2P_GROUP:
7754 return NL80211_IFTYPE_P2P_CLIENT;
7755 case WPA_IF_AP_VLAN:
7756 return NL80211_IFTYPE_AP_VLAN;
7757 case WPA_IF_AP_BSS:
7758 return NL80211_IFTYPE_AP;
7759 case WPA_IF_P2P_GO:
7760 return NL80211_IFTYPE_P2P_GO;
7761 }
7762 return -1;
7763 }
7766 #ifdef CONFIG_P2P
7768 static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr)
7769 {
7770 struct wpa_driver_nl80211_data *drv;
7771 dl_list_for_each(drv, &global->interfaces,
7772 struct wpa_driver_nl80211_data, list) {
7773 if (os_memcmp(addr, drv->first_bss.addr, ETH_ALEN) == 0)
7774 return 1;
7775 }
7776 return 0;
7777 }
7780 static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv,
7781 u8 *new_addr)
7782 {
7783 unsigned int idx;
7785 if (!drv->global)
7786 return -1;
7788 os_memcpy(new_addr, drv->first_bss.addr, ETH_ALEN);
7789 for (idx = 0; idx < 64; idx++) {
7790 new_addr[0] = drv->first_bss.addr[0] | 0x02;
7791 new_addr[0] ^= idx << 2;
7792 if (!nl80211_addr_in_use(drv->global, new_addr))
7793 break;
7794 }
7795 if (idx == 64)
7796 return -1;
7798 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address "
7799 MACSTR, MAC2STR(new_addr));
7801 return 0;
7802 }
7804 #endif /* CONFIG_P2P */
7807 static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type,
7808 const char *ifname, const u8 *addr,
7809 void *bss_ctx, void **drv_priv,
7810 char *force_ifname, u8 *if_addr,
7811 const char *bridge)
7812 {
7813 struct i802_bss *bss = priv;
7814 struct wpa_driver_nl80211_data *drv = bss->drv;
7815 int ifidx;
7816 #ifdef HOSTAPD
7817 struct i802_bss *new_bss = NULL;
7819 if (type == WPA_IF_AP_BSS) {
7820 new_bss = os_zalloc(sizeof(*new_bss));
7821 if (new_bss == NULL)
7822 return -1;
7823 }
7824 #endif /* HOSTAPD */
7826 if (addr)
7827 os_memcpy(if_addr, addr, ETH_ALEN);
7828 ifidx = nl80211_create_iface(drv, ifname,
7829 wpa_driver_nl80211_if_type(type), addr,
7830 0);
7831 if (ifidx < 0) {
7832 #ifdef HOSTAPD
7833 os_free(new_bss);
7834 #endif /* HOSTAPD */
7835 return -1;
7836 }
7838 if (!addr &&
7839 linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
7840 if_addr) < 0) {
7841 nl80211_remove_iface(drv, ifidx);
7842 return -1;
7843 }
7845 #ifdef CONFIG_P2P
7846 if (!addr &&
7847 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP ||
7848 type == WPA_IF_P2P_GO)) {
7849 /* Enforce unique P2P Interface Address */
7850 u8 new_addr[ETH_ALEN], own_addr[ETH_ALEN];
7852 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
7853 own_addr) < 0 ||
7854 linux_get_ifhwaddr(drv->global->ioctl_sock, ifname,
7855 new_addr) < 0) {
7856 nl80211_remove_iface(drv, ifidx);
7857 return -1;
7858 }
7859 if (os_memcmp(own_addr, new_addr, ETH_ALEN) == 0) {
7860 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address "
7861 "for P2P group interface");
7862 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) {
7863 nl80211_remove_iface(drv, ifidx);
7864 return -1;
7865 }
7866 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname,
7867 new_addr) < 0) {
7868 nl80211_remove_iface(drv, ifidx);
7869 return -1;
7870 }
7871 }
7872 os_memcpy(if_addr, new_addr, ETH_ALEN);
7873 }
7874 #endif /* CONFIG_P2P */
7876 #ifdef HOSTAPD
7877 if (bridge &&
7878 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) {
7879 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new "
7880 "interface %s to a bridge %s", ifname, bridge);
7881 nl80211_remove_iface(drv, ifidx);
7882 os_free(new_bss);
7883 return -1;
7884 }
7886 if (type == WPA_IF_AP_BSS) {
7887 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1))
7888 {
7889 nl80211_remove_iface(drv, ifidx);
7890 os_free(new_bss);
7891 return -1;
7892 }
7893 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ);
7894 os_memcpy(new_bss->addr, if_addr, ETH_ALEN);
7895 new_bss->ifindex = ifidx;
7896 new_bss->drv = drv;
7897 new_bss->next = drv->first_bss.next;
7898 new_bss->freq = drv->first_bss.freq;
7899 drv->first_bss.next = new_bss;
7900 if (drv_priv)
7901 *drv_priv = new_bss;
7902 nl80211_init_bss(new_bss);
7904 /* Subscribe management frames for this WPA_IF_AP_BSS */
7905 if (nl80211_setup_ap(new_bss))
7906 return -1;
7907 }
7908 #endif /* HOSTAPD */
7910 if (drv->global)
7911 drv->global->if_add_ifindex = ifidx;
7913 return 0;
7914 }
7917 static int wpa_driver_nl80211_if_remove(void *priv,
7918 enum wpa_driver_if_type type,
7919 const char *ifname)
7920 {
7921 struct i802_bss *bss = priv;
7922 struct wpa_driver_nl80211_data *drv = bss->drv;
7923 int ifindex = if_nametoindex(ifname);
7925 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d",
7926 __func__, type, ifname, ifindex);
7927 if (ifindex <= 0)
7928 return -1;
7930 #ifdef HOSTAPD
7931 if (bss->added_if_into_bridge) {
7932 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname,
7933 bss->ifname) < 0)
7934 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
7935 "interface %s from bridge %s: %s",
7936 bss->ifname, bss->brname, strerror(errno));
7937 }
7938 if (bss->added_bridge) {
7939 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0)
7940 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
7941 "bridge %s: %s",
7942 bss->brname, strerror(errno));
7943 }
7944 #endif /* HOSTAPD */
7946 nl80211_remove_iface(drv, ifindex);
7948 #ifdef HOSTAPD
7949 if (type != WPA_IF_AP_BSS)
7950 return 0;
7952 if (bss != &drv->first_bss) {
7953 struct i802_bss *tbss;
7955 for (tbss = &drv->first_bss; tbss; tbss = tbss->next) {
7956 if (tbss->next == bss) {
7957 tbss->next = bss->next;
7958 /* Unsubscribe management frames */
7959 nl80211_teardown_ap(bss);
7960 nl80211_destroy_bss(bss);
7961 os_free(bss);
7962 bss = NULL;
7963 break;
7964 }
7965 }
7966 if (bss)
7967 wpa_printf(MSG_INFO, "nl80211: %s - could not find "
7968 "BSS %p in the list", __func__, bss);
7969 }
7970 #endif /* HOSTAPD */
7972 return 0;
7973 }
7976 static int cookie_handler(struct nl_msg *msg, void *arg)
7977 {
7978 struct nlattr *tb[NL80211_ATTR_MAX + 1];
7979 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
7980 u64 *cookie = arg;
7981 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
7982 genlmsg_attrlen(gnlh, 0), NULL);
7983 if (tb[NL80211_ATTR_COOKIE])
7984 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
7985 return NL_SKIP;
7986 }
7989 static int nl80211_send_frame_cmd(struct i802_bss *bss,
7990 unsigned int freq, unsigned int wait,
7991 const u8 *buf, size_t buf_len,
7992 u64 *cookie_out, int no_cck, int no_ack,
7993 int offchanok)
7994 {
7995 struct wpa_driver_nl80211_data *drv = bss->drv;
7996 struct nl_msg *msg;
7997 u64 cookie;
7998 int ret = -1;
8000 msg = nlmsg_alloc();
8001 if (!msg)
8002 return -1;
8004 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME);
8006 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
8007 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
8008 #ifndef ANDROID_BRCM_P2P_PATCH
8009 if (wait)
8010 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait);
8011 #endif /* ANDROID_BRCM_P2P_PATCH */
8012 if (offchanok && (drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX))
8013 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
8014 if (no_cck)
8015 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE);
8016 if (no_ack)
8017 NLA_PUT_FLAG(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK);
8019 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf);
8021 cookie = 0;
8022 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
8023 msg = NULL;
8024 if (ret) {
8025 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d "
8026 "(%s) (freq=%u wait=%u)", ret, strerror(-ret),
8027 freq, wait);
8028 goto nla_put_failure;
8029 }
8030 wpa_printf(MSG_DEBUG, "nl80211: Frame TX command accepted%s; "
8031 "cookie 0x%llx", no_ack ? " (no ACK)" : "",
8032 (long long unsigned int) cookie);
8034 if (cookie_out)
8035 *cookie_out = no_ack ? (u64) -1 : cookie;
8037 nla_put_failure:
8038 nlmsg_free(msg);
8039 return ret;
8040 }
8043 static int wpa_driver_nl80211_send_action(void *priv, unsigned int freq,
8044 unsigned int wait_time,
8045 const u8 *dst, const u8 *src,
8046 const u8 *bssid,
8047 const u8 *data, size_t data_len,
8048 int no_cck)
8049 {
8050 struct i802_bss *bss = priv;
8051 struct wpa_driver_nl80211_data *drv = bss->drv;
8052 int ret = -1;
8053 u8 *buf;
8054 struct ieee80211_hdr *hdr;
8056 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, "
8057 "freq=%u MHz wait=%d ms no_cck=%d)",
8058 drv->ifindex, freq, wait_time, no_cck);
8060 buf = os_zalloc(24 + data_len);
8061 if (buf == NULL)
8062 return ret;
8063 os_memcpy(buf + 24, data, data_len);
8064 hdr = (struct ieee80211_hdr *) buf;
8065 hdr->frame_control =
8066 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION);
8067 os_memcpy(hdr->addr1, dst, ETH_ALEN);
8068 os_memcpy(hdr->addr2, src, ETH_ALEN);
8069 os_memcpy(hdr->addr3, bssid, ETH_ALEN);
8071 if (is_ap_interface(drv->nlmode))
8072 ret = wpa_driver_nl80211_send_mlme_freq(priv, buf,
8073 24 + data_len,
8074 0, freq, no_cck, 1,
8075 wait_time);
8076 else
8077 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf,
8078 24 + data_len,
8079 &drv->send_action_cookie,
8080 no_cck, 0, 1);
8082 os_free(buf);
8083 return ret;
8084 }
8087 static void wpa_driver_nl80211_send_action_cancel_wait(void *priv)
8088 {
8089 struct i802_bss *bss = priv;
8090 struct wpa_driver_nl80211_data *drv = bss->drv;
8091 struct nl_msg *msg;
8092 int ret;
8094 msg = nlmsg_alloc();
8095 if (!msg)
8096 return;
8098 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL);
8100 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8101 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie);
8103 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8104 msg = NULL;
8105 if (ret)
8106 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d "
8107 "(%s)", ret, strerror(-ret));
8109 nla_put_failure:
8110 nlmsg_free(msg);
8111 }
8114 static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq,
8115 unsigned int duration)
8116 {
8117 struct i802_bss *bss = priv;
8118 struct wpa_driver_nl80211_data *drv = bss->drv;
8119 struct nl_msg *msg;
8120 int ret;
8121 u64 cookie;
8123 msg = nlmsg_alloc();
8124 if (!msg)
8125 return -1;
8127 nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL);
8129 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8130 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
8131 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
8133 cookie = 0;
8134 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
8135 msg = NULL;
8136 if (ret == 0) {
8137 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie "
8138 "0x%llx for freq=%u MHz duration=%u",
8139 (long long unsigned int) cookie, freq, duration);
8140 drv->remain_on_chan_cookie = cookie;
8141 drv->pending_remain_on_chan = 1;
8142 return 0;
8143 }
8144 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel "
8145 "(freq=%d duration=%u): %d (%s)",
8146 freq, duration, ret, strerror(-ret));
8147 nla_put_failure:
8148 nlmsg_free(msg);
8149 return -1;
8150 }
8153 static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv)
8154 {
8155 struct i802_bss *bss = priv;
8156 struct wpa_driver_nl80211_data *drv = bss->drv;
8157 struct nl_msg *msg;
8158 int ret;
8160 if (!drv->pending_remain_on_chan) {
8161 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel "
8162 "to cancel");
8163 return -1;
8164 }
8166 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie "
8167 "0x%llx",
8168 (long long unsigned int) drv->remain_on_chan_cookie);
8170 msg = nlmsg_alloc();
8171 if (!msg)
8172 return -1;
8174 nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL);
8176 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8177 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie);
8179 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8180 msg = NULL;
8181 if (ret == 0)
8182 return 0;
8183 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: "
8184 "%d (%s)", ret, strerror(-ret));
8185 nla_put_failure:
8186 nlmsg_free(msg);
8187 return -1;
8188 }
8191 static int wpa_driver_nl80211_probe_req_report(void *priv, int report)
8192 {
8193 struct i802_bss *bss = priv;
8194 struct wpa_driver_nl80211_data *drv = bss->drv;
8196 if (!report) {
8197 if (bss->nl_preq && drv->device_ap_sme &&
8198 is_ap_interface(drv->nlmode)) {
8199 /*
8200 * Do not disable Probe Request reporting that was
8201 * enabled in nl80211_setup_ap().
8202 */
8203 wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of "
8204 "Probe Request reporting nl_preq=%p while "
8205 "in AP mode", bss->nl_preq);
8206 } else if (bss->nl_preq) {
8207 wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request "
8208 "reporting nl_preq=%p", bss->nl_preq);
8209 eloop_unregister_read_sock(
8210 nl_socket_get_fd(bss->nl_preq));
8211 nl_destroy_handles(&bss->nl_preq);
8212 }
8213 return 0;
8214 }
8216 if (bss->nl_preq) {
8217 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting "
8218 "already on! nl_preq=%p", bss->nl_preq);
8219 return 0;
8220 }
8222 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq");
8223 if (bss->nl_preq == NULL)
8224 return -1;
8225 wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request "
8226 "reporting nl_preq=%p", bss->nl_preq);
8228 if (nl80211_register_frame(bss, bss->nl_preq,
8229 (WLAN_FC_TYPE_MGMT << 2) |
8230 (WLAN_FC_STYPE_PROBE_REQ << 4),
8231 NULL, 0) < 0)
8232 goto out_err;
8234 eloop_register_read_sock(nl_socket_get_fd(bss->nl_preq),
8235 wpa_driver_nl80211_event_receive, bss->nl_cb,
8236 bss->nl_preq);
8238 return 0;
8240 out_err:
8241 nl_destroy_handles(&bss->nl_preq);
8242 return -1;
8243 }
8246 static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
8247 int ifindex, int disabled)
8248 {
8249 struct nl_msg *msg;
8250 struct nlattr *bands, *band;
8251 int ret;
8253 msg = nlmsg_alloc();
8254 if (!msg)
8255 return -1;
8257 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK);
8258 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
8260 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES);
8261 if (!bands)
8262 goto nla_put_failure;
8264 /*
8265 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything
8266 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS
8267 * rates. All 5 GHz rates are left enabled.
8268 */
8269 band = nla_nest_start(msg, NL80211_BAND_2GHZ);
8270 if (!band)
8271 goto nla_put_failure;
8272 if (disabled) {
8273 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8,
8274 "\x0c\x12\x18\x24\x30\x48\x60\x6c");
8275 }
8276 nla_nest_end(msg, band);
8278 nla_nest_end(msg, bands);
8280 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8281 msg = NULL;
8282 if (ret) {
8283 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d "
8284 "(%s)", ret, strerror(-ret));
8285 }
8287 return ret;
8289 nla_put_failure:
8290 nlmsg_free(msg);
8291 return -1;
8292 }
8295 static int wpa_driver_nl80211_deinit_ap(void *priv)
8296 {
8297 struct i802_bss *bss = priv;
8298 struct wpa_driver_nl80211_data *drv = bss->drv;
8299 if (!is_ap_interface(drv->nlmode))
8300 return -1;
8301 wpa_driver_nl80211_del_beacon(drv);
8302 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION);
8303 }
8306 static void wpa_driver_nl80211_resume(void *priv)
8307 {
8308 struct i802_bss *bss = priv;
8309 struct wpa_driver_nl80211_data *drv = bss->drv;
8310 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) {
8311 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on "
8312 "resume event");
8313 }
8314 }
8317 static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap,
8318 const u8 *ies, size_t ies_len)
8319 {
8320 struct i802_bss *bss = priv;
8321 struct wpa_driver_nl80211_data *drv = bss->drv;
8322 int ret;
8323 u8 *data, *pos;
8324 size_t data_len;
8325 const u8 *own_addr = bss->addr;
8327 if (action != 1) {
8328 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action "
8329 "action %d", action);
8330 return -1;
8331 }
8333 /*
8334 * Action frame payload:
8335 * Category[1] = 6 (Fast BSS Transition)
8336 * Action[1] = 1 (Fast BSS Transition Request)
8337 * STA Address
8338 * Target AP Address
8339 * FT IEs
8340 */
8342 data_len = 2 + 2 * ETH_ALEN + ies_len;
8343 data = os_malloc(data_len);
8344 if (data == NULL)
8345 return -1;
8346 pos = data;
8347 *pos++ = 0x06; /* FT Action category */
8348 *pos++ = action;
8349 os_memcpy(pos, own_addr, ETH_ALEN);
8350 pos += ETH_ALEN;
8351 os_memcpy(pos, target_ap, ETH_ALEN);
8352 pos += ETH_ALEN;
8353 os_memcpy(pos, ies, ies_len);
8355 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0,
8356 drv->bssid, own_addr, drv->bssid,
8357 data, data_len, 0);
8358 os_free(data);
8360 return ret;
8361 }
8364 static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis)
8365 {
8366 struct i802_bss *bss = priv;
8367 struct wpa_driver_nl80211_data *drv = bss->drv;
8368 struct nl_msg *msg, *cqm = NULL;
8370 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d "
8371 "hysteresis=%d", threshold, hysteresis);
8373 msg = nlmsg_alloc();
8374 if (!msg)
8375 return -1;
8377 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM);
8379 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
8381 cqm = nlmsg_alloc();
8382 if (cqm == NULL)
8383 return -1;
8385 NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_THOLD, threshold);
8386 NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_HYST, hysteresis);
8387 nla_put_nested(msg, NL80211_ATTR_CQM, cqm);
8389 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
8390 return 0;
8391 msg = NULL;
8393 nla_put_failure:
8394 nlmsg_free(cqm);
8395 nlmsg_free(msg);
8396 return -1;
8397 }
8400 static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si)
8401 {
8402 struct i802_bss *bss = priv;
8403 struct wpa_driver_nl80211_data *drv = bss->drv;
8404 int res;
8406 os_memset(si, 0, sizeof(*si));
8407 res = nl80211_get_link_signal(drv, si);
8408 if (res != 0)
8409 return res;
8411 return nl80211_get_link_noise(drv, si);
8412 }
8415 static int wpa_driver_nl80211_shared_freq(void *priv)
8416 {
8417 struct i802_bss *bss = priv;
8418 struct wpa_driver_nl80211_data *drv = bss->drv;
8419 struct wpa_driver_nl80211_data *driver;
8420 int freq = 0;
8422 /*
8423 * If the same PHY is in connected state with some other interface,
8424 * then retrieve the assoc freq.
8425 */
8426 wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s",
8427 drv->phyname);
8429 dl_list_for_each(driver, &drv->global->interfaces,
8430 struct wpa_driver_nl80211_data, list) {
8431 if (drv == driver ||
8432 os_strcmp(drv->phyname, driver->phyname) != 0 ||
8433 !driver->associated)
8434 continue;
8436 wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s "
8437 MACSTR,
8438 driver->phyname, driver->first_bss.ifname,
8439 MAC2STR(driver->first_bss.addr));
8440 freq = nl80211_get_assoc_freq(driver);
8441 wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d",
8442 drv->phyname, freq);
8443 }
8445 if (!freq)
8446 wpa_printf(MSG_DEBUG, "nl80211: No shared interface for "
8447 "PHY (%s) in associated state", drv->phyname);
8449 return freq;
8450 }
8453 static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len,
8454 int encrypt)
8455 {
8456 struct i802_bss *bss = priv;
8457 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0,
8458 0, 0, 0, 0);
8459 }
8462 static int nl80211_set_param(void *priv, const char *param)
8463 {
8464 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param);
8465 if (param == NULL)
8466 return 0;
8468 #ifdef CONFIG_P2P
8469 if (os_strstr(param, "use_p2p_group_interface=1")) {
8470 struct i802_bss *bss = priv;
8471 struct wpa_driver_nl80211_data *drv = bss->drv;
8473 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
8474 "interface");
8475 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
8476 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
8477 }
8478 #endif /* CONFIG_P2P */
8480 return 0;
8481 }
8484 static void * nl80211_global_init(void)
8485 {
8486 struct nl80211_global *global;
8487 struct netlink_config *cfg;
8489 global = os_zalloc(sizeof(*global));
8490 if (global == NULL)
8491 return NULL;
8492 global->ioctl_sock = -1;
8493 dl_list_init(&global->interfaces);
8494 global->if_add_ifindex = -1;
8496 cfg = os_zalloc(sizeof(*cfg));
8497 if (cfg == NULL)
8498 goto err;
8500 cfg->ctx = global;
8501 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink;
8502 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink;
8503 global->netlink = netlink_init(cfg);
8504 if (global->netlink == NULL) {
8505 os_free(cfg);
8506 goto err;
8507 }
8509 if (wpa_driver_nl80211_init_nl_global(global) < 0)
8510 goto err;
8512 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
8513 if (global->ioctl_sock < 0) {
8514 perror("socket(PF_INET,SOCK_DGRAM)");
8515 goto err;
8516 }
8518 return global;
8520 err:
8521 nl80211_global_deinit(global);
8522 return NULL;
8523 }
8526 static void nl80211_global_deinit(void *priv)
8527 {
8528 struct nl80211_global *global = priv;
8529 if (global == NULL)
8530 return;
8531 if (!dl_list_empty(&global->interfaces)) {
8532 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at "
8533 "nl80211_global_deinit",
8534 dl_list_len(&global->interfaces));
8535 }
8537 if (global->netlink)
8538 netlink_deinit(global->netlink);
8540 nl_destroy_handles(&global->nl);
8542 if (global->nl_event) {
8543 eloop_unregister_read_sock(
8544 nl_socket_get_fd(global->nl_event));
8545 nl_destroy_handles(&global->nl_event);
8546 }
8548 nl_cb_put(global->nl_cb);
8550 if (global->ioctl_sock >= 0)
8551 close(global->ioctl_sock);
8553 os_free(global);
8554 }
8557 static const char * nl80211_get_radio_name(void *priv)
8558 {
8559 struct i802_bss *bss = priv;
8560 struct wpa_driver_nl80211_data *drv = bss->drv;
8561 return drv->phyname;
8562 }
8565 static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid,
8566 const u8 *pmkid)
8567 {
8568 struct nl_msg *msg;
8570 msg = nlmsg_alloc();
8571 if (!msg)
8572 return -ENOMEM;
8574 nl80211_cmd(bss->drv, msg, 0, cmd);
8576 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
8577 if (pmkid)
8578 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid);
8579 if (bssid)
8580 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
8582 return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
8583 nla_put_failure:
8584 nlmsg_free(msg);
8585 return -ENOBUFS;
8586 }
8589 static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid)
8590 {
8591 struct i802_bss *bss = priv;
8592 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid));
8593 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid);
8594 }
8597 static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid)
8598 {
8599 struct i802_bss *bss = priv;
8600 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR,
8601 MAC2STR(bssid));
8602 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid);
8603 }
8606 static int nl80211_flush_pmkid(void *priv)
8607 {
8608 struct i802_bss *bss = priv;
8609 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs");
8610 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL);
8611 }
8614 static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck,
8615 const u8 *replay_ctr)
8616 {
8617 struct i802_bss *bss = priv;
8618 struct wpa_driver_nl80211_data *drv = bss->drv;
8619 struct nlattr *replay_nested;
8620 struct nl_msg *msg;
8622 msg = nlmsg_alloc();
8623 if (!msg)
8624 return;
8626 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
8628 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
8630 replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
8631 if (!replay_nested)
8632 goto nla_put_failure;
8634 NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek);
8635 NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck);
8636 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN,
8637 replay_ctr);
8639 nla_nest_end(msg, replay_nested);
8641 send_and_recv_msgs(drv, msg, NULL, NULL);
8642 return;
8643 nla_put_failure:
8644 nlmsg_free(msg);
8645 }
8648 static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr,
8649 const u8 *addr, int qos)
8650 {
8651 /* send data frame to poll STA and check whether
8652 * this frame is ACKed */
8653 struct {
8654 struct ieee80211_hdr hdr;
8655 u16 qos_ctl;
8656 } STRUCT_PACKED nulldata;
8657 size_t size;
8659 /* Send data frame to poll STA and check whether this frame is ACKed */
8661 os_memset(&nulldata, 0, sizeof(nulldata));
8663 if (qos) {
8664 nulldata.hdr.frame_control =
8665 IEEE80211_FC(WLAN_FC_TYPE_DATA,
8666 WLAN_FC_STYPE_QOS_NULL);
8667 size = sizeof(nulldata);
8668 } else {
8669 nulldata.hdr.frame_control =
8670 IEEE80211_FC(WLAN_FC_TYPE_DATA,
8671 WLAN_FC_STYPE_NULLFUNC);
8672 size = sizeof(struct ieee80211_hdr);
8673 }
8675 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS);
8676 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN);
8677 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
8678 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
8680 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0) < 0)
8681 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to "
8682 "send poll frame");
8683 }
8685 static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr,
8686 int qos)
8687 {
8688 struct i802_bss *bss = priv;
8689 struct wpa_driver_nl80211_data *drv = bss->drv;
8690 struct nl_msg *msg;
8692 if (!drv->poll_command_supported) {
8693 nl80211_send_null_frame(bss, own_addr, addr, qos);
8694 return;
8695 }
8697 msg = nlmsg_alloc();
8698 if (!msg)
8699 return;
8701 nl80211_cmd(drv, msg, 0, NL80211_CMD_PROBE_CLIENT);
8703 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
8704 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
8706 send_and_recv_msgs(drv, msg, NULL, NULL);
8707 return;
8708 nla_put_failure:
8709 nlmsg_free(msg);
8710 }
8713 static int nl80211_set_power_save(struct i802_bss *bss, int enabled)
8714 {
8715 struct nl_msg *msg;
8717 msg = nlmsg_alloc();
8718 if (!msg)
8719 return -ENOMEM;
8721 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_SET_POWER_SAVE);
8722 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
8723 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE,
8724 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED);
8725 return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
8726 nla_put_failure:
8727 nlmsg_free(msg);
8728 return -ENOBUFS;
8729 }
8732 static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps,
8733 int ctwindow)
8734 {
8735 struct i802_bss *bss = priv;
8737 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d "
8738 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow);
8740 if (opp_ps != -1 || ctwindow != -1)
8741 return -1; /* Not yet supported */
8743 if (legacy_ps == -1)
8744 return 0;
8745 if (legacy_ps != 0 && legacy_ps != 1)
8746 return -1; /* Not yet supported */
8748 return nl80211_set_power_save(bss, legacy_ps);
8749 }
8752 #ifdef CONFIG_TDLS
8754 static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code,
8755 u8 dialog_token, u16 status_code,
8756 const u8 *buf, size_t len)
8757 {
8758 struct i802_bss *bss = priv;
8759 struct wpa_driver_nl80211_data *drv = bss->drv;
8760 struct nl_msg *msg;
8762 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
8763 return -EOPNOTSUPP;
8765 if (!dst)
8766 return -EINVAL;
8768 msg = nlmsg_alloc();
8769 if (!msg)
8770 return -ENOMEM;
8772 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT);
8773 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8774 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
8775 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code);
8776 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token);
8777 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code);
8778 NLA_PUT(msg, NL80211_ATTR_IE, len, buf);
8780 return send_and_recv_msgs(drv, msg, NULL, NULL);
8782 nla_put_failure:
8783 nlmsg_free(msg);
8784 return -ENOBUFS;
8785 }
8788 static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer)
8789 {
8790 struct i802_bss *bss = priv;
8791 struct wpa_driver_nl80211_data *drv = bss->drv;
8792 struct nl_msg *msg;
8793 enum nl80211_tdls_operation nl80211_oper;
8795 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
8796 return -EOPNOTSUPP;
8798 switch (oper) {
8799 case TDLS_DISCOVERY_REQ:
8800 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ;
8801 break;
8802 case TDLS_SETUP:
8803 nl80211_oper = NL80211_TDLS_SETUP;
8804 break;
8805 case TDLS_TEARDOWN:
8806 nl80211_oper = NL80211_TDLS_TEARDOWN;
8807 break;
8808 case TDLS_ENABLE_LINK:
8809 nl80211_oper = NL80211_TDLS_ENABLE_LINK;
8810 break;
8811 case TDLS_DISABLE_LINK:
8812 nl80211_oper = NL80211_TDLS_DISABLE_LINK;
8813 break;
8814 case TDLS_ENABLE:
8815 return 0;
8816 case TDLS_DISABLE:
8817 return 0;
8818 default:
8819 return -EINVAL;
8820 }
8822 msg = nlmsg_alloc();
8823 if (!msg)
8824 return -ENOMEM;
8826 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER);
8827 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper);
8828 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8829 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
8831 return send_and_recv_msgs(drv, msg, NULL, NULL);
8833 nla_put_failure:
8834 nlmsg_free(msg);
8835 return -ENOBUFS;
8836 }
8838 #endif /* CONFIG TDLS */
8841 #ifdef ANDROID
8843 typedef struct android_wifi_priv_cmd {
8844 char *buf;
8845 int used_len;
8846 int total_len;
8847 } android_wifi_priv_cmd;
8849 static int drv_errors = 0;
8851 static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv)
8852 {
8853 drv_errors++;
8854 if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) {
8855 drv_errors = 0;
8856 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED");
8857 }
8858 }
8861 #define WPA_PS_ENABLED 0
8862 #define WPA_PS_DISABLED 1
8864 static int wpa_driver_set_power_save(void *priv, int state)
8865 {
8866 return nl80211_set_power_save(priv, state == WPA_PS_ENABLED);
8867 }
8870 static int get_power_mode_handler(struct nl_msg *msg, void *arg)
8871 {
8872 struct nlattr *tb[NL80211_ATTR_MAX + 1];
8873 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
8874 int *state = arg;
8876 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
8877 genlmsg_attrlen(gnlh, 0), NULL);
8879 if (!tb[NL80211_ATTR_PS_STATE])
8880 return NL_SKIP;
8882 if (state) {
8883 int s = (int) nla_get_u32(tb[NL80211_ATTR_PS_STATE]);
8884 wpa_printf(MSG_DEBUG, "nl80211: Get power mode = %d", s);
8885 *state = (s == NL80211_PS_ENABLED) ?
8886 WPA_PS_ENABLED : WPA_PS_DISABLED;
8887 }
8889 return NL_SKIP;
8890 }
8893 static int wpa_driver_get_power_save(void *priv, int *state)
8894 {
8895 struct i802_bss *bss = priv;
8896 struct wpa_driver_nl80211_data *drv = bss->drv;
8897 struct nl_msg *msg;
8898 int ret = -1;
8899 enum nl80211_ps_state ps_state;
8901 msg = nlmsg_alloc();
8902 if (!msg)
8903 return -1;
8905 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_POWER_SAVE);
8907 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
8909 ret = send_and_recv_msgs(drv, msg, get_power_mode_handler, state);
8910 msg = NULL;
8911 if (ret < 0)
8912 wpa_printf(MSG_ERROR, "nl80211: Get power mode fail: %d", ret);
8913 nla_put_failure:
8914 nlmsg_free(msg);
8915 return ret;
8916 }
8919 static int android_priv_cmd(struct i802_bss *bss, const char *cmd)
8920 {
8921 struct wpa_driver_nl80211_data *drv = bss->drv;
8922 struct ifreq ifr;
8923 android_wifi_priv_cmd priv_cmd;
8924 char buf[MAX_DRV_CMD_SIZE];
8925 int ret;
8927 os_memset(&ifr, 0, sizeof(ifr));
8928 os_memset(&priv_cmd, 0, sizeof(priv_cmd));
8929 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ);
8931 os_memset(buf, 0, sizeof(buf));
8932 os_strlcpy(buf, cmd, sizeof(buf));
8934 priv_cmd.buf = buf;
8935 priv_cmd.used_len = sizeof(buf);
8936 priv_cmd.total_len = sizeof(buf);
8937 ifr.ifr_data = &priv_cmd;
8939 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr);
8940 if (ret < 0) {
8941 wpa_printf(MSG_ERROR, "%s: failed to issue private commands",
8942 __func__);
8943 wpa_driver_send_hang_msg(drv);
8944 return ret;
8945 }
8947 drv_errors = 0;
8948 return 0;
8949 }
8952 static int android_pno_start(struct i802_bss *bss,
8953 struct wpa_driver_scan_params *params)
8954 {
8955 struct wpa_driver_nl80211_data *drv = bss->drv;
8956 struct ifreq ifr;
8957 android_wifi_priv_cmd priv_cmd;
8958 int ret = 0, i = 0, bp;
8959 char buf[WEXT_PNO_MAX_COMMAND_SIZE];
8961 bp = WEXT_PNOSETUP_HEADER_SIZE;
8962 os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp);
8963 buf[bp++] = WEXT_PNO_TLV_PREFIX;
8964 buf[bp++] = WEXT_PNO_TLV_VERSION;
8965 buf[bp++] = WEXT_PNO_TLV_SUBVERSION;
8966 buf[bp++] = WEXT_PNO_TLV_RESERVED;
8968 while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) {
8969 /* Check that there is enough space needed for 1 more SSID, the
8970 * other sections and null termination */
8971 if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN +
8972 WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf))
8973 break;
8974 wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan",
8975 params->ssids[i].ssid,
8976 params->ssids[i].ssid_len);
8977 buf[bp++] = WEXT_PNO_SSID_SECTION;
8978 buf[bp++] = params->ssids[i].ssid_len;
8979 os_memcpy(&buf[bp], params->ssids[i].ssid,
8980 params->ssids[i].ssid_len);
8981 bp += params->ssids[i].ssid_len;
8982 i++;
8983 }
8985 buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION;
8986 os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x",
8987 WEXT_PNO_SCAN_INTERVAL);
8988 bp += WEXT_PNO_SCAN_INTERVAL_LENGTH;
8990 buf[bp++] = WEXT_PNO_REPEAT_SECTION;
8991 os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x",
8992 WEXT_PNO_REPEAT);
8993 bp += WEXT_PNO_REPEAT_LENGTH;
8995 buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION;
8996 os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x",
8997 WEXT_PNO_MAX_REPEAT);
8998 bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1;
9000 memset(&ifr, 0, sizeof(ifr));
9001 memset(&priv_cmd, 0, sizeof(priv_cmd));
9002 os_strncpy(ifr.ifr_name, bss->ifname, IFNAMSIZ);
9004 priv_cmd.buf = buf;
9005 priv_cmd.used_len = bp;
9006 priv_cmd.total_len = bp;
9007 ifr.ifr_data = &priv_cmd;
9009 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr);
9011 if (ret < 0) {
9012 wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d",
9013 ret);
9014 wpa_driver_send_hang_msg(drv);
9015 return ret;
9016 }
9018 drv_errors = 0;
9020 return android_priv_cmd(bss, "PNOFORCE 1");
9021 }
9024 static int android_pno_stop(struct i802_bss *bss)
9025 {
9026 return android_priv_cmd(bss, "PNOFORCE 0");
9027 }
9030 static int wpa_driver_nl80211_driver_cmd(void *priv, char *cmd, char *buf,
9031 size_t buf_len)
9032 {
9033 struct i802_bss *bss = priv;
9034 struct wpa_driver_nl80211_data *drv = bss->drv;
9035 struct ifreq ifr;
9036 android_wifi_priv_cmd priv_cmd;
9037 int ret = 0;
9039 if (os_strcasecmp(cmd, "STOP") == 0) {
9040 linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0);
9041 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "STOPPED");
9042 } else if (os_strcasecmp(cmd, "START") == 0) {
9043 linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1);
9044 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "STARTED");
9045 } else if (os_strcasecmp(cmd, "MACADDR") == 0) {
9046 u8 macaddr[ETH_ALEN] = {};
9048 ret = linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
9049 macaddr);
9050 if (!ret)
9051 ret = os_snprintf(buf, buf_len,
9052 "Macaddr = " MACSTR "\n",
9053 MAC2STR(macaddr));
9054 } else if (os_strcasecmp(cmd, "RELOAD") == 0) {
9055 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED");
9056 } else if (os_strncasecmp(cmd, "POWERMODE ", 10) == 0) {
9057 int state = atoi(cmd + 10);
9058 ret = wpa_driver_set_power_save(priv, state);
9059 if (ret < 0)
9060 wpa_driver_send_hang_msg(drv);
9061 else
9062 drv_errors = 0;
9063 } else if (os_strncasecmp(cmd, "GETPOWER", 8) == 0) {
9064 int state = -1;
9065 ret = wpa_driver_get_power_save(priv, &state);
9066 if (!ret && (state != -1))
9067 ret = os_snprintf(buf, buf_len, "POWERMODE = %d\n",
9068 state);
9069 } else { /* Use private command */
9070 memset(&ifr, 0, sizeof(ifr));
9071 memset(&priv_cmd, 0, sizeof(priv_cmd));
9072 os_memcpy(buf, cmd, strlen(cmd) + 1);
9073 os_strncpy(ifr.ifr_name, bss->ifname, IFNAMSIZ);
9075 priv_cmd.buf = buf;
9076 priv_cmd.used_len = buf_len;
9077 priv_cmd.total_len = buf_len;
9078 ifr.ifr_data = &priv_cmd;
9080 if ((ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1,
9081 &ifr)) < 0) {
9082 wpa_printf(MSG_ERROR, "%s: failed to issue private "
9083 "commands\n", __func__);
9084 wpa_driver_send_hang_msg(drv);
9085 } else {
9086 drv_errors = 0;
9087 ret = 0;
9088 if ((os_strcasecmp(cmd, "LINKSPEED") == 0) ||
9089 (os_strcasecmp(cmd, "RSSI") == 0) ||
9090 (os_strcasecmp(cmd, "GETBAND") == 0))
9091 ret = strlen(buf);
9093 wpa_printf(MSG_DEBUG, "%s %s len = %d, %d", __func__,
9094 buf, ret, strlen(buf));
9095 }
9096 }
9098 return ret;
9099 }
9101 #endif /* ANDROID */
9104 const struct wpa_driver_ops wpa_driver_nl80211_ops = {
9105 .name = "nl80211",
9106 .desc = "Linux nl80211/cfg80211",
9107 .get_bssid = wpa_driver_nl80211_get_bssid,
9108 .get_ssid = wpa_driver_nl80211_get_ssid,
9109 .set_key = wpa_driver_nl80211_set_key,
9110 .scan2 = wpa_driver_nl80211_scan,
9111 .sched_scan = wpa_driver_nl80211_sched_scan,
9112 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan,
9113 .get_scan_results2 = wpa_driver_nl80211_get_scan_results,
9114 .deauthenticate = wpa_driver_nl80211_deauthenticate,
9115 .disassociate = wpa_driver_nl80211_disassociate,
9116 .authenticate = wpa_driver_nl80211_authenticate,
9117 .associate = wpa_driver_nl80211_associate,
9118 .global_init = nl80211_global_init,
9119 .global_deinit = nl80211_global_deinit,
9120 .init2 = wpa_driver_nl80211_init,
9121 .deinit = wpa_driver_nl80211_deinit,
9122 .get_capa = wpa_driver_nl80211_get_capa,
9123 .set_operstate = wpa_driver_nl80211_set_operstate,
9124 .set_supp_port = wpa_driver_nl80211_set_supp_port,
9125 .set_country = wpa_driver_nl80211_set_country,
9126 .set_ap = wpa_driver_nl80211_set_ap,
9127 .if_add = wpa_driver_nl80211_if_add,
9128 .if_remove = wpa_driver_nl80211_if_remove,
9129 .send_mlme = wpa_driver_nl80211_send_mlme,
9130 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data,
9131 .sta_add = wpa_driver_nl80211_sta_add,
9132 .sta_remove = wpa_driver_nl80211_sta_remove,
9133 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol,
9134 .sta_set_flags = wpa_driver_nl80211_sta_set_flags,
9135 #ifdef HOSTAPD
9136 .hapd_init = i802_init,
9137 .hapd_deinit = i802_deinit,
9138 .set_wds_sta = i802_set_wds_sta,
9139 #endif /* HOSTAPD */
9140 #if defined(HOSTAPD) || defined(CONFIG_AP)
9141 .get_seqnum = i802_get_seqnum,
9142 .flush = i802_flush,
9143 .read_sta_data = i802_read_sta_data,
9144 .get_inact_sec = i802_get_inact_sec,
9145 .sta_clear_stats = i802_sta_clear_stats,
9146 .set_rts = i802_set_rts,
9147 .set_frag = i802_set_frag,
9148 .set_tx_queue_params = i802_set_tx_queue_params,
9149 .set_sta_vlan = i802_set_sta_vlan,
9150 .sta_deauth = i802_sta_deauth,
9151 .sta_disassoc = i802_sta_disassoc,
9152 #endif /* HOSTAPD || CONFIG_AP */
9153 .set_freq = i802_set_freq,
9154 .send_action = wpa_driver_nl80211_send_action,
9155 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait,
9156 .remain_on_channel = wpa_driver_nl80211_remain_on_channel,
9157 .cancel_remain_on_channel =
9158 wpa_driver_nl80211_cancel_remain_on_channel,
9159 .probe_req_report = wpa_driver_nl80211_probe_req_report,
9160 .deinit_ap = wpa_driver_nl80211_deinit_ap,
9161 .resume = wpa_driver_nl80211_resume,
9162 .send_ft_action = nl80211_send_ft_action,
9163 .signal_monitor = nl80211_signal_monitor,
9164 .signal_poll = nl80211_signal_poll,
9165 .send_frame = nl80211_send_frame,
9166 .shared_freq = wpa_driver_nl80211_shared_freq,
9167 .set_param = nl80211_set_param,
9168 .get_radio_name = nl80211_get_radio_name,
9169 .add_pmkid = nl80211_add_pmkid,
9170 .remove_pmkid = nl80211_remove_pmkid,
9171 .flush_pmkid = nl80211_flush_pmkid,
9172 .set_rekey_info = nl80211_set_rekey_info,
9173 .poll_client = nl80211_poll_client,
9174 .set_p2p_powersave = nl80211_set_p2p_powersave,
9175 #ifdef CONFIG_TDLS
9176 .send_tdls_mgmt = nl80211_send_tdls_mgmt,
9177 .tdls_oper = nl80211_tdls_oper,
9178 #endif /* CONFIG_TDLS */
9179 #ifdef ANDROID
9180 .driver_cmd = wpa_driver_nl80211_driver_cmd,
9181 #endif /* ANDROID */
9182 };