2 * Driver interaction with Linux nl80211/cfg80211
3 * Copyright (c) 2002-2010, 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
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
13 * Alternatively, this software may be distributed under the terms of BSD
16 * See README and COPYING for more details.
20 #include <sys/ioctl.h>
22 #include <netlink/genl/genl.h>
23 #include <netlink/genl/family.h>
24 #include <netlink/genl/ctrl.h>
25 #include <netpacket/packet.h>
26 #include <linux/filter.h>
27 #include "nl80211_copy.h"
31 #include "common/ieee802_11_defs.h"
33 #include "linux_ioctl.h"
35 #include "radiotap_iter.h"
39 /* libnl 2.0 compatibility code */
40 #define nl_handle nl_sock
41 #define nl_handle_alloc_cb nl_socket_alloc_cb
42 #define nl_handle_destroy nl_socket_free
43 #endif /* CONFIG_LIBNL20 */
47 #define IFF_LOWER_UP 0x10000 /* driver signals L1 up */
50 #define IFF_DORMANT 0x20000 /* driver signals dormant */
53 #ifndef IF_OPER_DORMANT
54 #define IF_OPER_DORMANT 5
61 struct wpa_driver_nl80211_data *drv;
62 struct i802_bss *next;
64 char ifname[IFNAMSIZ + 1];
65 unsigned int beacon_set:1;
68 struct wpa_driver_nl80211_data {
70 struct netlink_data *netlink;
71 int ioctl_sock; /* socket for ioctl() use */
72 char brname[IFNAMSIZ];
75 struct wpa_driver_capa capa;
80 int scan_complete_events;
82 struct nl_handle *nl_handle;
83 struct nl_handle *nl_handle_event;
84 struct nl_cache *nl_cache;
85 struct nl_cache *nl_cache_event;
87 struct genl_family *nl80211;
89 u8 auth_bssid[ETH_ALEN];
95 int ap_scan_as_station;
96 unsigned int assoc_freq;
100 int probe_req_report;
101 int disable_11b_rates;
103 unsigned int pending_remain_on_chan:1;
104 unsigned int pending_send_action:1;
105 unsigned int added_bridge:1;
106 unsigned int added_if_into_bridge:1;
108 u64 remain_on_chan_cookie;
109 u64 send_action_cookie;
111 struct wpa_driver_scan_filter *filter_ssids;
112 size_t num_filter_ssids;
114 struct i802_bss first_bss;
117 int eapol_sock; /* socket for EAPOL frames */
119 int default_if_indices[16];
129 static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx,
131 static int wpa_driver_nl80211_set_mode(void *priv, int mode);
133 wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv);
134 static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
135 const u8 *addr, int cmd, u16 reason_code,
136 int local_state_change);
137 static void nl80211_remove_monitor_interface(
138 struct wpa_driver_nl80211_data *drv);
141 static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
142 static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
143 static int i802_set_freq(void *priv, struct hostapd_freq_params *freq);
144 static int wpa_driver_nl80211_if_remove(void *priv,
145 enum wpa_driver_if_type type,
149 static void wpa_driver_nl80211_probe_req_report_timeout(void *eloop_ctx,
151 static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
152 int ifindex, int disabled);
156 static int ack_handler(struct nl_msg *msg, void *arg)
163 static int finish_handler(struct nl_msg *msg, void *arg)
170 static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err,
179 static int no_seq_check(struct nl_msg *msg, void *arg)
185 static int send_and_recv(struct wpa_driver_nl80211_data *drv,
186 struct nl_handle *nl_handle, struct nl_msg *msg,
187 int (*valid_handler)(struct nl_msg *, void *),
193 cb = nl_cb_clone(drv->nl_cb);
197 err = nl_send_auto_complete(nl_handle, msg);
203 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
204 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
205 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
208 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM,
209 valid_handler, valid_data);
212 nl_recvmsgs(nl_handle, cb);
220 static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv,
222 int (*valid_handler)(struct nl_msg *, void *),
225 return send_and_recv(drv, drv->nl_handle, msg, valid_handler,
236 static int family_handler(struct nl_msg *msg, void *arg)
238 struct family_data *res = arg;
239 struct nlattr *tb[CTRL_ATTR_MAX + 1];
240 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
241 struct nlattr *mcgrp;
244 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
245 genlmsg_attrlen(gnlh, 0), NULL);
246 if (!tb[CTRL_ATTR_MCAST_GROUPS])
249 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) {
250 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1];
251 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp),
252 nla_len(mcgrp), NULL);
253 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] ||
254 !tb2[CTRL_ATTR_MCAST_GRP_ID] ||
255 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]),
257 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0)
259 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]);
267 static int nl_get_multicast_id(struct wpa_driver_nl80211_data *drv,
268 const char *family, const char *group)
272 struct family_data res = { group, -ENOENT };
277 genlmsg_put(msg, 0, 0, genl_ctrl_resolve(drv->nl_handle, "nlctrl"),
278 0, 0, CTRL_CMD_GETFAMILY, 0);
279 NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family);
281 ret = send_and_recv_msgs(drv, msg, family_handler, &res);
292 static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid)
294 struct i802_bss *bss = priv;
295 struct wpa_driver_nl80211_data *drv = bss->drv;
296 if (!drv->associated)
298 os_memcpy(bssid, drv->bssid, ETH_ALEN);
303 static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid)
305 struct i802_bss *bss = priv;
306 struct wpa_driver_nl80211_data *drv = bss->drv;
307 if (!drv->associated)
309 os_memcpy(ssid, drv->ssid, drv->ssid_len);
310 return drv->ssid_len;
314 static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv,
315 char *buf, size_t len, int del)
317 union wpa_event_data event;
319 os_memset(&event, 0, sizeof(event));
320 if (len > sizeof(event.interface_status.ifname))
321 len = sizeof(event.interface_status.ifname) - 1;
322 os_memcpy(event.interface_status.ifname, buf, len);
323 event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED :
324 EVENT_INTERFACE_ADDED;
326 wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s",
328 event.interface_status.ifname,
329 del ? "removed" : "added");
331 if (os_strcmp(drv->first_bss.ifname, event.interface_status.ifname) == 0) {
338 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event);
342 static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv,
345 int attrlen, rta_len;
349 attr = (struct rtattr *) buf;
351 rta_len = RTA_ALIGN(sizeof(struct rtattr));
352 while (RTA_OK(attr, attrlen)) {
353 if (attr->rta_type == IFLA_IFNAME) {
354 if (os_strcmp(((char *) attr) + rta_len, drv->first_bss.ifname)
360 attr = RTA_NEXT(attr, attrlen);
367 static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv,
368 int ifindex, u8 *buf, size_t len)
370 if (drv->ifindex == ifindex)
373 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) {
374 drv->first_bss.ifindex = if_nametoindex(drv->first_bss.ifname);
375 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed "
377 wpa_driver_nl80211_finish_drv_init(drv);
385 static void wpa_driver_nl80211_event_rtm_newlink(void *ctx,
386 struct ifinfomsg *ifi,
389 struct wpa_driver_nl80211_data *drv = ctx;
390 int attrlen, rta_len;
393 if (!wpa_driver_nl80211_own_ifindex(drv, ifi->ifi_index, buf, len)) {
394 wpa_printf(MSG_DEBUG, "Ignore event for foreign ifindex %d",
399 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x "
401 drv->operstate, ifi->ifi_flags,
402 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "",
403 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "",
404 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "",
405 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : "");
407 * Some drivers send the association event before the operup event--in
408 * this case, lifting operstate in wpa_driver_nl80211_set_operstate()
409 * fails. This will hit us when wpa_supplicant does not need to do
410 * IEEE 802.1X authentication
412 if (drv->operstate == 1 &&
413 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP &&
414 !(ifi->ifi_flags & IFF_RUNNING))
415 netlink_send_oper_ifla(drv->netlink, drv->ifindex,
419 attr = (struct rtattr *) buf;
420 rta_len = RTA_ALIGN(sizeof(struct rtattr));
421 while (RTA_OK(attr, attrlen)) {
422 if (attr->rta_type == IFLA_IFNAME) {
423 wpa_driver_nl80211_event_link(
425 ((char *) attr) + rta_len,
426 attr->rta_len - rta_len, 0);
428 attr = RTA_NEXT(attr, attrlen);
433 static void wpa_driver_nl80211_event_rtm_dellink(void *ctx,
434 struct ifinfomsg *ifi,
437 struct wpa_driver_nl80211_data *drv = ctx;
438 int attrlen, rta_len;
442 attr = (struct rtattr *) buf;
444 rta_len = RTA_ALIGN(sizeof(struct rtattr));
445 while (RTA_OK(attr, attrlen)) {
446 if (attr->rta_type == IFLA_IFNAME) {
447 wpa_driver_nl80211_event_link(
449 ((char *) attr) + rta_len,
450 attr->rta_len - rta_len, 1);
452 attr = RTA_NEXT(attr, attrlen);
457 static void mlme_event_auth(struct wpa_driver_nl80211_data *drv,
458 const u8 *frame, size_t len)
460 const struct ieee80211_mgmt *mgmt;
461 union wpa_event_data event;
463 mgmt = (const struct ieee80211_mgmt *) frame;
464 if (len < 24 + sizeof(mgmt->u.auth)) {
465 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
470 os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN);
471 os_memset(&event, 0, sizeof(event));
472 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN);
473 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg);
474 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code);
475 if (len > 24 + sizeof(mgmt->u.auth)) {
476 event.auth.ies = mgmt->u.auth.variable;
477 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth);
480 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event);
484 static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv,
485 const u8 *frame, size_t len)
487 const struct ieee80211_mgmt *mgmt;
488 union wpa_event_data event;
491 mgmt = (const struct ieee80211_mgmt *) frame;
492 if (len < 24 + sizeof(mgmt->u.assoc_resp)) {
493 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
498 status = le_to_host16(mgmt->u.assoc_resp.status_code);
499 if (status != WLAN_STATUS_SUCCESS) {
500 os_memset(&event, 0, sizeof(event));
501 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
502 event.assoc_reject.resp_ies =
503 (u8 *) mgmt->u.assoc_resp.variable;
504 event.assoc_reject.resp_ies_len =
505 len - 24 - sizeof(mgmt->u.assoc_resp);
507 event.assoc_reject.status_code = status;
509 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
514 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN);
516 os_memset(&event, 0, sizeof(event));
517 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
518 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable;
519 event.assoc_info.resp_ies_len =
520 len - 24 - sizeof(mgmt->u.assoc_resp);
523 event.assoc_info.freq = drv->assoc_freq;
525 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
529 static void mlme_event_connect(struct wpa_driver_nl80211_data *drv,
530 enum nl80211_commands cmd, struct nlattr *status,
531 struct nlattr *addr, struct nlattr *req_ie,
532 struct nlattr *resp_ie)
534 union wpa_event_data event;
536 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
538 * Avoid reporting two association events that would confuse
541 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) "
542 "when using userspace SME", cmd);
546 os_memset(&event, 0, sizeof(event));
547 if (cmd == NL80211_CMD_CONNECT &&
548 nla_get_u16(status) != WLAN_STATUS_SUCCESS) {
550 event.assoc_reject.resp_ies = nla_data(resp_ie);
551 event.assoc_reject.resp_ies_len = nla_len(resp_ie);
553 event.assoc_reject.status_code = nla_get_u16(status);
554 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
560 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN);
563 event.assoc_info.req_ies = nla_data(req_ie);
564 event.assoc_info.req_ies_len = nla_len(req_ie);
567 event.assoc_info.resp_ies = nla_data(resp_ie);
568 event.assoc_info.resp_ies_len = nla_len(resp_ie);
571 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
575 static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv,
576 enum nl80211_commands cmd, struct nlattr *addr)
578 union wpa_event_data event;
579 enum wpa_event_type ev;
581 if (nla_len(addr) != ETH_ALEN)
584 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR,
585 cmd, MAC2STR((u8 *) nla_data(addr)));
587 if (cmd == NL80211_CMD_AUTHENTICATE)
588 ev = EVENT_AUTH_TIMED_OUT;
589 else if (cmd == NL80211_CMD_ASSOCIATE)
590 ev = EVENT_ASSOC_TIMED_OUT;
594 os_memset(&event, 0, sizeof(event));
595 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN);
596 wpa_supplicant_event(drv->ctx, ev, &event);
600 static void mlme_event_action(struct wpa_driver_nl80211_data *drv,
601 struct nlattr *freq, const u8 *frame, size_t len)
603 const struct ieee80211_mgmt *mgmt;
604 union wpa_event_data event;
607 mgmt = (const struct ieee80211_mgmt *) frame;
609 wpa_printf(MSG_DEBUG, "nl80211: Too short action frame");
613 fc = le_to_host16(mgmt->frame_control);
614 stype = WLAN_FC_GET_STYPE(fc);
616 os_memset(&event, 0, sizeof(event));
617 event.rx_action.da = mgmt->da;
618 event.rx_action.sa = mgmt->sa;
619 event.rx_action.bssid = mgmt->bssid;
620 event.rx_action.category = mgmt->u.action.category;
621 event.rx_action.data = &mgmt->u.action.category + 1;
622 event.rx_action.len = frame + len - event.rx_action.data;
624 event.rx_action.freq = nla_get_u32(freq);
625 wpa_supplicant_event(drv->ctx, EVENT_RX_ACTION, &event);
629 static void mlme_event_action_tx_status(struct wpa_driver_nl80211_data *drv,
630 struct nlattr *cookie, const u8 *frame,
631 size_t len, struct nlattr *ack)
633 union wpa_event_data event;
634 const struct ieee80211_hdr *hdr;
641 cookie_val = nla_get_u64(cookie);
642 wpa_printf(MSG_DEBUG, "nl80211: Action TX status: cookie=0%llx%s",
643 (long long unsigned int) cookie_val,
644 cookie_val == drv->send_action_cookie ?
645 " (match)" : " (unknown)");
646 if (cookie_val != drv->send_action_cookie)
649 hdr = (const struct ieee80211_hdr *) frame;
650 fc = le_to_host16(hdr->frame_control);
652 os_memset(&event, 0, sizeof(event));
653 event.tx_status.type = WLAN_FC_GET_TYPE(fc);
654 event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
655 event.tx_status.dst = hdr->addr1;
656 event.tx_status.data = frame;
657 event.tx_status.data_len = len;
658 event.tx_status.ack = ack != NULL;
659 wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event);
663 static void mlme_event(struct wpa_driver_nl80211_data *drv,
664 enum nl80211_commands cmd, struct nlattr *frame,
665 struct nlattr *addr, struct nlattr *timed_out,
666 struct nlattr *freq, struct nlattr *ack,
667 struct nlattr *cookie)
669 if (timed_out && addr) {
670 mlme_timeout_event(drv, cmd, addr);
675 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d without frame "
680 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d", cmd);
681 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame",
682 nla_data(frame), nla_len(frame));
685 case NL80211_CMD_AUTHENTICATE:
686 mlme_event_auth(drv, nla_data(frame), nla_len(frame));
688 case NL80211_CMD_ASSOCIATE:
689 mlme_event_assoc(drv, nla_data(frame), nla_len(frame));
691 case NL80211_CMD_DEAUTHENTICATE:
693 wpa_supplicant_event(drv->ctx, EVENT_DEAUTH, NULL);
695 case NL80211_CMD_DISASSOCIATE:
697 wpa_supplicant_event(drv->ctx, EVENT_DISASSOC, NULL);
699 case NL80211_CMD_ACTION:
700 mlme_event_action(drv, freq, nla_data(frame), nla_len(frame));
702 case NL80211_CMD_ACTION_TX_STATUS:
703 mlme_event_action_tx_status(drv, cookie, nla_data(frame),
704 nla_len(frame), ack);
712 static void mlme_event_michael_mic_failure(struct wpa_driver_nl80211_data *drv,
715 union wpa_event_data data;
717 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure");
718 os_memset(&data, 0, sizeof(data));
719 if (tb[NL80211_ATTR_MAC]) {
720 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address",
721 nla_data(tb[NL80211_ATTR_MAC]),
722 nla_len(tb[NL80211_ATTR_MAC]));
723 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]);
725 if (tb[NL80211_ATTR_KEY_SEQ]) {
726 wpa_hexdump(MSG_DEBUG, "nl80211: TSC",
727 nla_data(tb[NL80211_ATTR_KEY_SEQ]),
728 nla_len(tb[NL80211_ATTR_KEY_SEQ]));
730 if (tb[NL80211_ATTR_KEY_TYPE]) {
731 enum nl80211_key_type key_type =
732 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]);
733 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type);
734 if (key_type == NL80211_KEYTYPE_PAIRWISE)
735 data.michael_mic_failure.unicast = 1;
737 data.michael_mic_failure.unicast = 1;
739 if (tb[NL80211_ATTR_KEY_IDX]) {
740 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]);
741 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id);
744 wpa_supplicant_event(drv->ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
748 static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv,
751 if (tb[NL80211_ATTR_MAC] == NULL) {
752 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined "
756 os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
758 wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined",
759 MAC2STR(drv->bssid));
761 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL);
765 static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv,
766 int cancel_event, struct nlattr *tb[])
768 unsigned int freq, chan_type, duration;
769 union wpa_event_data data;
772 if (tb[NL80211_ATTR_WIPHY_FREQ])
773 freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]);
777 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
778 chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
782 if (tb[NL80211_ATTR_DURATION])
783 duration = nla_get_u32(tb[NL80211_ATTR_DURATION]);
787 if (tb[NL80211_ATTR_COOKIE])
788 cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
792 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d "
793 "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))",
794 cancel_event, freq, chan_type, duration,
795 (long long unsigned int) cookie,
796 cookie == drv->remain_on_chan_cookie ? "match" : "unknown");
798 if (cookie != drv->remain_on_chan_cookie)
799 return; /* not for us */
801 drv->pending_remain_on_chan = !cancel_event;
803 os_memset(&data, 0, sizeof(data));
804 data.remain_on_channel.freq = freq;
805 data.remain_on_channel.duration = duration;
806 wpa_supplicant_event(drv->ctx, cancel_event ?
807 EVENT_CANCEL_REMAIN_ON_CHANNEL :
808 EVENT_REMAIN_ON_CHANNEL, &data);
812 static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted,
815 union wpa_event_data event;
818 struct scan_info *info;
819 #define MAX_REPORT_FREQS 50
820 int freqs[MAX_REPORT_FREQS];
823 os_memset(&event, 0, sizeof(event));
824 info = &event.scan_info;
825 info->aborted = aborted;
827 if (tb[NL80211_ATTR_SCAN_SSIDS]) {
828 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) {
829 struct wpa_driver_scan_ssid *s =
830 &info->ssids[info->num_ssids];
831 s->ssid = nla_data(nl);
832 s->ssid_len = nla_len(nl);
834 if (info->num_ssids == WPAS_MAX_SCAN_SSIDS)
838 if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) {
839 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem)
841 freqs[num_freqs] = nla_get_u32(nl);
843 if (num_freqs == MAX_REPORT_FREQS - 1)
847 info->num_freqs = num_freqs;
849 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event);
853 static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv,
856 static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
857 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
858 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 },
859 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
861 struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1];
862 enum nl80211_cqm_rssi_threshold_event event;
863 union wpa_event_data ed;
865 if (tb[NL80211_ATTR_CQM] == NULL ||
866 nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM],
868 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event");
872 if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL)
874 event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]);
876 os_memset(&ed, 0, sizeof(ed));
878 if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) {
879 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
881 ed.signal_change.above_threshold = 1;
882 } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) {
883 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
885 ed.signal_change.above_threshold = 0;
889 wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed);
893 static int process_event(struct nl_msg *msg, void *arg)
895 struct wpa_driver_nl80211_data *drv = arg;
896 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
897 struct nlattr *tb[NL80211_ATTR_MAX + 1];
899 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
900 genlmsg_attrlen(gnlh, 0), NULL);
902 if (tb[NL80211_ATTR_IFINDEX]) {
903 int ifindex = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
904 if (ifindex != drv->ifindex) {
905 wpa_printf(MSG_DEBUG, "nl80211: Ignored event (cmd=%d)"
906 " for foreign interface (ifindex %d)",
912 if (drv->ap_scan_as_station &&
913 (gnlh->cmd == NL80211_CMD_NEW_SCAN_RESULTS ||
914 gnlh->cmd == NL80211_CMD_SCAN_ABORTED)) {
915 wpa_driver_nl80211_set_mode(&drv->first_bss,
917 drv->ap_scan_as_station = 0;
921 case NL80211_CMD_TRIGGER_SCAN:
922 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger");
924 case NL80211_CMD_NEW_SCAN_RESULTS:
925 wpa_printf(MSG_DEBUG, "nl80211: New scan results available");
926 drv->scan_complete_events = 1;
927 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
929 send_scan_event(drv, 0, tb);
931 case NL80211_CMD_SCAN_ABORTED:
932 wpa_printf(MSG_DEBUG, "nl80211: Scan aborted");
934 * Need to indicate that scan results are available in order
935 * not to make wpa_supplicant stop its scanning.
937 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
939 send_scan_event(drv, 1, tb);
941 case NL80211_CMD_AUTHENTICATE:
942 case NL80211_CMD_ASSOCIATE:
943 case NL80211_CMD_DEAUTHENTICATE:
944 case NL80211_CMD_DISASSOCIATE:
945 case NL80211_CMD_ACTION:
946 case NL80211_CMD_ACTION_TX_STATUS:
947 mlme_event(drv, gnlh->cmd, tb[NL80211_ATTR_FRAME],
948 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT],
949 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK],
950 tb[NL80211_ATTR_COOKIE]);
952 case NL80211_CMD_CONNECT:
953 case NL80211_CMD_ROAM:
954 mlme_event_connect(drv, gnlh->cmd,
955 tb[NL80211_ATTR_STATUS_CODE],
956 tb[NL80211_ATTR_MAC],
957 tb[NL80211_ATTR_REQ_IE],
958 tb[NL80211_ATTR_RESP_IE]);
960 case NL80211_CMD_DISCONNECT:
961 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
963 * Avoid reporting two disassociation events that could
964 * confuse the core code.
966 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect "
967 "event when using userspace SME");
971 wpa_supplicant_event(drv->ctx, EVENT_DISASSOC, NULL);
973 case NL80211_CMD_MICHAEL_MIC_FAILURE:
974 mlme_event_michael_mic_failure(drv, tb);
976 case NL80211_CMD_JOIN_IBSS:
977 mlme_event_join_ibss(drv, tb);
979 case NL80211_CMD_REMAIN_ON_CHANNEL:
980 mlme_event_remain_on_channel(drv, 0, tb);
982 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL:
983 mlme_event_remain_on_channel(drv, 1, tb);
985 case NL80211_CMD_NOTIFY_CQM:
986 nl80211_cqm_event(drv, tb);
989 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event "
990 "(cmd=%d)", gnlh->cmd);
998 static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx,
1002 struct wpa_driver_nl80211_data *drv = eloop_ctx;
1004 wpa_printf(MSG_DEBUG, "nl80211: Event message available");
1006 cb = nl_cb_clone(drv->nl_cb);
1009 nl_cb_set(cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL);
1010 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, process_event, drv);
1011 nl_recvmsgs(drv->nl_handle_event, cb);
1017 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain
1018 * @priv: driver_nl80211 private data
1019 * @alpha2_arg: country to which to switch to
1020 * Returns: 0 on success, -1 on failure
1022 * This asks nl80211 to set the regulatory domain for given
1023 * country ISO / IEC alpha2.
1025 static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg)
1027 struct i802_bss *bss = priv;
1028 struct wpa_driver_nl80211_data *drv = bss->drv;
1032 msg = nlmsg_alloc();
1036 alpha2[0] = alpha2_arg[0];
1037 alpha2[1] = alpha2_arg[1];
1040 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1041 0, NL80211_CMD_REQ_SET_REG, 0);
1043 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2);
1044 if (send_and_recv_msgs(drv, msg, NULL, NULL))
1053 struct wiphy_info_data {
1057 int connect_supported;
1061 static int wiphy_info_handler(struct nl_msg *msg, void *arg)
1063 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1064 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1065 struct wiphy_info_data *info = arg;
1067 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1068 genlmsg_attrlen(gnlh, 0), NULL);
1070 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS])
1071 info->max_scan_ssids =
1072 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]);
1074 if (tb[NL80211_ATTR_SUPPORTED_IFTYPES]) {
1075 struct nlattr *nl_mode;
1077 nla_for_each_nested(nl_mode,
1078 tb[NL80211_ATTR_SUPPORTED_IFTYPES], i) {
1079 if (nl_mode->nla_type == NL80211_IFTYPE_AP) {
1080 info->ap_supported = 1;
1086 if (tb[NL80211_ATTR_SUPPORTED_COMMANDS]) {
1087 struct nlattr *nl_cmd;
1090 nla_for_each_nested(nl_cmd,
1091 tb[NL80211_ATTR_SUPPORTED_COMMANDS], i) {
1092 u32 cmd = nla_get_u32(nl_cmd);
1093 if (cmd == NL80211_CMD_AUTHENTICATE)
1094 info->auth_supported = 1;
1095 else if (cmd == NL80211_CMD_CONNECT)
1096 info->connect_supported = 1;
1104 static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv,
1105 struct wiphy_info_data *info)
1109 os_memset(info, 0, sizeof(*info));
1110 msg = nlmsg_alloc();
1114 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1115 0, NL80211_CMD_GET_WIPHY, 0);
1117 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->first_bss.ifindex);
1119 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info) == 0)
1128 static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
1130 struct wiphy_info_data info;
1131 if (wpa_driver_nl80211_get_info(drv, &info))
1133 drv->has_capability = 1;
1134 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */
1135 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
1136 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
1137 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
1138 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
1139 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 |
1140 WPA_DRIVER_CAPA_ENC_WEP104 |
1141 WPA_DRIVER_CAPA_ENC_TKIP |
1142 WPA_DRIVER_CAPA_ENC_CCMP;
1143 drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
1144 WPA_DRIVER_AUTH_SHARED |
1145 WPA_DRIVER_AUTH_LEAP;
1147 drv->capa.max_scan_ssids = info.max_scan_ssids;
1148 if (info.ap_supported)
1149 drv->capa.flags |= WPA_DRIVER_FLAGS_AP;
1151 if (info.auth_supported)
1152 drv->capa.flags |= WPA_DRIVER_FLAGS_SME;
1153 else if (!info.connect_supported) {
1154 wpa_printf(MSG_INFO, "nl80211: Driver does not support "
1155 "authentication/association or connect commands");
1159 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE;
1160 drv->capa.max_remain_on_chan = 5000;
1164 #endif /* HOSTAPD */
1167 static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv,
1172 /* Initialize generic netlink and nl80211 */
1174 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
1175 if (drv->nl_cb == NULL) {
1176 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
1181 drv->nl_handle = nl_handle_alloc_cb(drv->nl_cb);
1182 if (drv->nl_handle == NULL) {
1183 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
1188 drv->nl_handle_event = nl_handle_alloc_cb(drv->nl_cb);
1189 if (drv->nl_handle_event == NULL) {
1190 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
1191 "callbacks (event)");
1195 if (genl_connect(drv->nl_handle)) {
1196 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
1201 if (genl_connect(drv->nl_handle_event)) {
1202 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
1207 #ifdef CONFIG_LIBNL20
1208 if (genl_ctrl_alloc_cache(drv->nl_handle, &drv->nl_cache) < 0) {
1209 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1213 if (genl_ctrl_alloc_cache(drv->nl_handle_event, &drv->nl_cache_event) <
1215 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1216 "netlink cache (event)");
1219 #else /* CONFIG_LIBNL20 */
1220 drv->nl_cache = genl_ctrl_alloc_cache(drv->nl_handle);
1221 if (drv->nl_cache == NULL) {
1222 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1226 drv->nl_cache_event = genl_ctrl_alloc_cache(drv->nl_handle_event);
1227 if (drv->nl_cache_event == NULL) {
1228 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1229 "netlink cache (event)");
1232 #endif /* CONFIG_LIBNL20 */
1234 drv->nl80211 = genl_ctrl_search_by_name(drv->nl_cache, "nl80211");
1235 if (drv->nl80211 == NULL) {
1236 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not "
1241 ret = nl_get_multicast_id(drv, "nl80211", "scan");
1243 ret = nl_socket_add_membership(drv->nl_handle_event, ret);
1245 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
1246 "membership for scan events: %d (%s)",
1247 ret, strerror(-ret));
1251 ret = nl_get_multicast_id(drv, "nl80211", "mlme");
1253 ret = nl_socket_add_membership(drv->nl_handle_event, ret);
1255 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
1256 "membership for mlme events: %d (%s)",
1257 ret, strerror(-ret));
1261 eloop_register_read_sock(nl_socket_get_fd(drv->nl_handle_event),
1262 wpa_driver_nl80211_event_receive, drv, ctx);
1267 nl_cache_free(drv->nl_cache_event);
1269 nl_cache_free(drv->nl_cache);
1271 nl_handle_destroy(drv->nl_handle_event);
1273 nl_handle_destroy(drv->nl_handle);
1275 nl_cb_put(drv->nl_cb);
1282 * wpa_driver_nl80211_init - Initialize nl80211 driver interface
1283 * @ctx: context to be used when calling wpa_supplicant functions,
1284 * e.g., wpa_supplicant_event()
1285 * @ifname: interface name, e.g., wlan0
1286 * Returns: Pointer to private data, %NULL on failure
1288 static void * wpa_driver_nl80211_init(void *ctx, const char *ifname)
1290 struct wpa_driver_nl80211_data *drv;
1291 struct netlink_config *cfg;
1292 struct i802_bss *bss;
1294 drv = os_zalloc(sizeof(*drv));
1298 bss = &drv->first_bss;
1300 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname));
1301 drv->monitor_ifidx = -1;
1302 drv->monitor_sock = -1;
1303 drv->ioctl_sock = -1;
1305 if (wpa_driver_nl80211_init_nl(drv, ctx)) {
1310 drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
1311 if (drv->ioctl_sock < 0) {
1312 perror("socket(PF_INET,SOCK_DGRAM)");
1316 cfg = os_zalloc(sizeof(*cfg));
1320 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink;
1321 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink;
1322 drv->netlink = netlink_init(cfg);
1323 if (drv->netlink == NULL) {
1327 if (wpa_driver_nl80211_finish_drv_init(drv))
1333 netlink_deinit(drv->netlink);
1334 if (drv->ioctl_sock >= 0)
1335 close(drv->ioctl_sock);
1337 genl_family_put(drv->nl80211);
1338 nl_cache_free(drv->nl_cache);
1339 nl_handle_destroy(drv->nl_handle);
1340 nl_cb_put(drv->nl_cb);
1341 eloop_unregister_read_sock(nl_socket_get_fd(drv->nl_handle_event));
1348 static int nl80211_register_action_frame(struct wpa_driver_nl80211_data *drv,
1349 const u8 *match, size_t match_len)
1354 msg = nlmsg_alloc();
1358 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
1359 NL80211_CMD_REGISTER_ACTION, 0);
1361 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1362 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match);
1364 ret = send_and_recv(drv, drv->nl_handle_event, msg, NULL, NULL);
1367 wpa_printf(MSG_DEBUG, "nl80211: Register Action command "
1368 "failed: ret=%d (%s)", ret, strerror(-ret));
1369 wpa_hexdump(MSG_DEBUG, "nl80211: Register Action match",
1371 goto nla_put_failure;
1380 static int nl80211_register_action_frames(struct wpa_driver_nl80211_data *drv)
1382 /* FT Action frames */
1383 if (nl80211_register_action_frame(drv, (u8 *) "\x06", 1) < 0)
1386 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT |
1387 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK;
1394 wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv)
1396 struct i802_bss *bss = &drv->first_bss;
1398 drv->ifindex = if_nametoindex(bss->ifname);
1399 drv->first_bss.ifindex = drv->ifindex;
1402 if (wpa_driver_nl80211_set_mode(bss, IEEE80211_MODE_INFRA) < 0) {
1403 wpa_printf(MSG_DEBUG, "nl80211: Could not configure driver to "
1404 "use managed mode");
1407 if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 1)) {
1408 wpa_printf(MSG_ERROR, "Could not set interface '%s' UP",
1413 if (wpa_driver_nl80211_capa(drv))
1416 netlink_send_oper_ifla(drv->netlink, drv->ifindex,
1417 1, IF_OPER_DORMANT);
1418 #endif /* HOSTAPD */
1420 if (nl80211_register_action_frames(drv) < 0) {
1421 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action "
1422 "frame processing - ignore for now");
1424 * Older kernel versions did not support this, so ignore the
1425 * error for now. Some functionality may not be available
1434 static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv)
1438 msg = nlmsg_alloc();
1442 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1443 0, NL80211_CMD_DEL_BEACON, 0);
1444 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1446 return send_and_recv_msgs(drv, msg, NULL, NULL);
1453 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface
1454 * @priv: Pointer to private nl80211 data from wpa_driver_nl80211_init()
1456 * Shut down driver interface and processing of driver events. Free
1457 * private data buffer if one was allocated in wpa_driver_nl80211_init().
1459 static void wpa_driver_nl80211_deinit(void *priv)
1461 struct i802_bss *bss = priv;
1462 struct wpa_driver_nl80211_data *drv = bss->drv;
1464 if (drv->added_if_into_bridge) {
1465 if (linux_br_del_if(drv->ioctl_sock, drv->brname, bss->ifname)
1467 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
1468 "interface %s from bridge %s: %s",
1469 bss->ifname, drv->brname, strerror(errno));
1471 if (drv->added_bridge) {
1472 if (linux_br_del(drv->ioctl_sock, drv->brname) < 0)
1473 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
1475 drv->brname, strerror(errno));
1478 nl80211_remove_monitor_interface(drv);
1480 if (drv->nlmode == NL80211_IFTYPE_AP)
1481 wpa_driver_nl80211_del_beacon(drv);
1484 if (drv->last_freq_ht) {
1485 /* Clear HT flags from the driver */
1486 struct hostapd_freq_params freq;
1487 os_memset(&freq, 0, sizeof(freq));
1488 freq.freq = drv->last_freq;
1489 i802_set_freq(priv, &freq);
1492 if (drv->eapol_sock >= 0) {
1493 eloop_unregister_read_sock(drv->eapol_sock);
1494 close(drv->eapol_sock);
1497 if (drv->if_indices != drv->default_if_indices)
1498 os_free(drv->if_indices);
1499 #endif /* HOSTAPD */
1501 if (drv->disable_11b_rates)
1502 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
1504 netlink_send_oper_ifla(drv->netlink, drv->ifindex, 0, IF_OPER_UP);
1505 netlink_deinit(drv->netlink);
1507 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
1509 (void) linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 0);
1510 wpa_driver_nl80211_set_mode(bss, IEEE80211_MODE_INFRA);
1512 if (drv->ioctl_sock >= 0)
1513 close(drv->ioctl_sock);
1515 eloop_unregister_read_sock(nl_socket_get_fd(drv->nl_handle_event));
1516 genl_family_put(drv->nl80211);
1517 nl_cache_free(drv->nl_cache);
1518 nl_cache_free(drv->nl_cache_event);
1519 nl_handle_destroy(drv->nl_handle);
1520 nl_handle_destroy(drv->nl_handle_event);
1521 nl_cb_put(drv->nl_cb);
1523 eloop_cancel_timeout(wpa_driver_nl80211_probe_req_report_timeout,
1526 os_free(drv->filter_ssids);
1533 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion
1534 * @eloop_ctx: Driver private data
1535 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init()
1537 * This function can be used as registered timeout when starting a scan to
1538 * generate a scan completed event if the driver does not report this.
1540 static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx)
1542 struct wpa_driver_nl80211_data *drv = eloop_ctx;
1543 if (drv->ap_scan_as_station) {
1544 wpa_driver_nl80211_set_mode(&drv->first_bss,
1546 drv->ap_scan_as_station = 0;
1548 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results");
1549 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL);
1554 * wpa_driver_nl80211_scan - Request the driver to initiate scan
1555 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
1556 * @params: Scan parameters
1557 * Returns: 0 on success, -1 on failure
1559 static int wpa_driver_nl80211_scan(void *priv,
1560 struct wpa_driver_scan_params *params)
1562 struct i802_bss *bss = priv;
1563 struct wpa_driver_nl80211_data *drv = bss->drv;
1564 int ret = 0, timeout;
1565 struct nl_msg *msg, *ssids, *freqs;
1568 msg = nlmsg_alloc();
1569 ssids = nlmsg_alloc();
1570 freqs = nlmsg_alloc();
1571 if (!msg || !ssids || !freqs) {
1578 os_free(drv->filter_ssids);
1579 drv->filter_ssids = params->filter_ssids;
1580 params->filter_ssids = NULL;
1581 drv->num_filter_ssids = params->num_filter_ssids;
1583 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
1584 NL80211_CMD_TRIGGER_SCAN, 0);
1586 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1588 for (i = 0; i < params->num_ssids; i++) {
1589 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID",
1590 params->ssids[i].ssid,
1591 params->ssids[i].ssid_len);
1592 NLA_PUT(ssids, i + 1, params->ssids[i].ssid_len,
1593 params->ssids[i].ssid);
1595 if (params->num_ssids)
1596 nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids);
1598 if (params->extra_ies) {
1599 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan extra IEs",
1600 params->extra_ies, params->extra_ies_len);
1601 NLA_PUT(msg, NL80211_ATTR_IE, params->extra_ies_len,
1605 if (params->freqs) {
1606 for (i = 0; params->freqs[i]; i++) {
1607 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u "
1608 "MHz", params->freqs[i]);
1609 NLA_PUT_U32(freqs, i + 1, params->freqs[i]);
1611 nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES, freqs);
1614 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
1617 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d "
1618 "(%s)", ret, strerror(-ret));
1620 if (drv->nlmode == NL80211_IFTYPE_AP) {
1622 * mac80211 does not allow scan requests in AP mode, so
1623 * try to do this in station mode.
1625 if (wpa_driver_nl80211_set_mode(bss,
1626 IEEE80211_MODE_INFRA))
1627 goto nla_put_failure;
1629 if (wpa_driver_nl80211_scan(drv, params)) {
1630 wpa_driver_nl80211_set_mode(bss,
1632 goto nla_put_failure;
1635 /* Restore AP mode when processing scan results */
1636 drv->ap_scan_as_station = 1;
1639 goto nla_put_failure;
1641 goto nla_put_failure;
1642 #endif /* HOSTAPD */
1645 /* Not all drivers generate "scan completed" wireless event, so try to
1646 * read results after a timeout. */
1648 if (drv->scan_complete_events) {
1650 * The driver seems to deliver events to notify when scan is
1651 * complete, so use longer timeout to avoid race conditions
1652 * with scanning and following association request.
1656 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d "
1657 "seconds", ret, timeout);
1658 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
1659 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout,
1670 static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie)
1672 const u8 *end, *pos;
1678 end = ies + ies_len;
1680 while (pos + 1 < end) {
1681 if (pos + 2 + pos[1] > end)
1692 static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv,
1693 const u8 *ie, size_t ie_len)
1698 if (drv->filter_ssids == NULL)
1701 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID);
1705 for (i = 0; i < drv->num_filter_ssids; i++) {
1706 if (ssid[1] == drv->filter_ssids[i].ssid_len &&
1707 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) ==
1716 struct nl80211_bss_info_arg {
1717 struct wpa_driver_nl80211_data *drv;
1718 struct wpa_scan_results *res;
1721 static int bss_info_handler(struct nl_msg *msg, void *arg)
1723 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1724 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1725 struct nlattr *bss[NL80211_BSS_MAX + 1];
1726 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
1727 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC },
1728 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 },
1729 [NL80211_BSS_TSF] = { .type = NLA_U64 },
1730 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 },
1731 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 },
1732 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC },
1733 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 },
1734 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 },
1735 [NL80211_BSS_STATUS] = { .type = NLA_U32 },
1736 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 },
1737 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC },
1739 struct nl80211_bss_info_arg *_arg = arg;
1740 struct wpa_scan_results *res = _arg->res;
1741 struct wpa_scan_res **tmp;
1742 struct wpa_scan_res *r;
1743 const u8 *ie, *beacon_ie;
1744 size_t ie_len, beacon_ie_len;
1747 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1748 genlmsg_attrlen(gnlh, 0), NULL);
1749 if (!tb[NL80211_ATTR_BSS])
1751 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS],
1754 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) {
1755 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
1756 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
1761 if (bss[NL80211_BSS_BEACON_IES]) {
1762 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]);
1763 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]);
1769 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie,
1770 ie ? ie_len : beacon_ie_len))
1773 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len);
1776 if (bss[NL80211_BSS_BSSID])
1777 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]),
1779 if (bss[NL80211_BSS_FREQUENCY])
1780 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
1781 if (bss[NL80211_BSS_BEACON_INTERVAL])
1782 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]);
1783 if (bss[NL80211_BSS_CAPABILITY])
1784 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]);
1785 r->flags |= WPA_SCAN_NOISE_INVALID;
1786 if (bss[NL80211_BSS_SIGNAL_MBM]) {
1787 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]);
1788 r->level /= 100; /* mBm to dBm */
1789 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID;
1790 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) {
1791 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]);
1792 r->flags |= WPA_SCAN_LEVEL_INVALID;
1794 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID;
1795 if (bss[NL80211_BSS_TSF])
1796 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]);
1797 if (bss[NL80211_BSS_SEEN_MS_AGO])
1798 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]);
1800 pos = (u8 *) (r + 1);
1802 os_memcpy(pos, ie, ie_len);
1805 r->beacon_ie_len = beacon_ie_len;
1807 os_memcpy(pos, beacon_ie, beacon_ie_len);
1809 if (bss[NL80211_BSS_STATUS]) {
1810 enum nl80211_bss_status status;
1811 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
1813 case NL80211_BSS_STATUS_AUTHENTICATED:
1814 r->flags |= WPA_SCAN_AUTHENTICATED;
1816 case NL80211_BSS_STATUS_ASSOCIATED:
1817 r->flags |= WPA_SCAN_ASSOCIATED;
1824 tmp = os_realloc(res->res,
1825 (res->num + 1) * sizeof(struct wpa_scan_res *));
1830 tmp[res->num++] = r;
1837 static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv,
1840 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
1841 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state "
1842 "mismatch (" MACSTR ")", MAC2STR(addr));
1843 wpa_driver_nl80211_mlme(drv, addr,
1844 NL80211_CMD_DEAUTHENTICATE,
1845 WLAN_REASON_PREV_AUTH_NOT_VALID, 1);
1850 static void wpa_driver_nl80211_check_bss_status(
1851 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res)
1855 for (i = 0; i < res->num; i++) {
1856 struct wpa_scan_res *r = res->res[i];
1857 if (r->flags & WPA_SCAN_AUTHENTICATED) {
1858 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
1859 "indicates BSS status with " MACSTR
1860 " as authenticated",
1862 if (drv->nlmode == NL80211_IFTYPE_STATION &&
1863 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 &&
1864 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) !=
1866 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID"
1867 " in local state (auth=" MACSTR
1868 " assoc=" MACSTR ")",
1869 MAC2STR(drv->auth_bssid),
1870 MAC2STR(drv->bssid));
1871 clear_state_mismatch(drv, r->bssid);
1875 if (r->flags & WPA_SCAN_ASSOCIATED) {
1876 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
1877 "indicate BSS status with " MACSTR
1880 if (drv->nlmode == NL80211_IFTYPE_STATION &&
1882 wpa_printf(MSG_DEBUG, "nl80211: Local state "
1883 "(not associated) does not match "
1885 clear_state_mismatch(drv, r->bssid);
1886 } else if (drv->nlmode == NL80211_IFTYPE_STATION &&
1887 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) !=
1889 wpa_printf(MSG_DEBUG, "nl80211: Local state "
1890 "(associated with " MACSTR ") does "
1891 "not match with BSS state",
1892 MAC2STR(drv->bssid));
1893 clear_state_mismatch(drv, r->bssid);
1894 clear_state_mismatch(drv, drv->bssid);
1901 static void wpa_scan_results_free(struct wpa_scan_results *res)
1908 for (i = 0; i < res->num; i++)
1909 os_free(res->res[i]);
1915 static struct wpa_scan_results *
1916 nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv)
1919 struct wpa_scan_results *res;
1921 struct nl80211_bss_info_arg arg;
1923 res = os_zalloc(sizeof(*res));
1926 msg = nlmsg_alloc();
1928 goto nla_put_failure;
1930 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, NLM_F_DUMP,
1931 NL80211_CMD_GET_SCAN, 0);
1932 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1936 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
1939 wpa_printf(MSG_DEBUG, "Received scan results (%lu BSSes)",
1940 (unsigned long) res->num);
1943 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
1944 "(%s)", ret, strerror(-ret));
1947 wpa_scan_results_free(res);
1953 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results
1954 * @priv: Pointer to private wext data from wpa_driver_nl80211_init()
1955 * Returns: Scan results on success, -1 on failure
1957 static struct wpa_scan_results *
1958 wpa_driver_nl80211_get_scan_results(void *priv)
1960 struct i802_bss *bss = priv;
1961 struct wpa_driver_nl80211_data *drv = bss->drv;
1962 struct wpa_scan_results *res;
1964 res = nl80211_get_scan_results(drv);
1966 wpa_driver_nl80211_check_bss_status(drv, res);
1971 static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv)
1973 struct wpa_scan_results *res;
1976 res = nl80211_get_scan_results(drv);
1978 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results");
1982 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump");
1983 for (i = 0; i < res->num; i++) {
1984 struct wpa_scan_res *r = res->res[i];
1985 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s",
1986 (int) i, (int) res->num, MAC2STR(r->bssid),
1987 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "",
1988 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : "");
1991 wpa_scan_results_free(res);
1995 static int wpa_driver_nl80211_set_key(const char *ifname, void *priv,
1996 enum wpa_alg alg, const u8 *addr,
1997 int key_idx, int set_tx,
1998 const u8 *seq, size_t seq_len,
1999 const u8 *key, size_t key_len)
2001 struct i802_bss *bss = priv;
2002 struct wpa_driver_nl80211_data *drv = bss->drv;
2003 int ifindex = if_nametoindex(ifname);
2007 wpa_printf(MSG_DEBUG, "%s: ifindex=%d alg=%d addr=%p key_idx=%d "
2008 "set_tx=%d seq_len=%lu key_len=%lu",
2009 __func__, ifindex, alg, addr, key_idx, set_tx,
2010 (unsigned long) seq_len, (unsigned long) key_len);
2012 msg = nlmsg_alloc();
2016 if (alg == WPA_ALG_NONE) {
2017 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2018 0, NL80211_CMD_DEL_KEY, 0);
2020 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2021 0, NL80211_CMD_NEW_KEY, 0);
2022 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key);
2026 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
2027 WLAN_CIPHER_SUITE_WEP40);
2029 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
2030 WLAN_CIPHER_SUITE_WEP104);
2033 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
2034 WLAN_CIPHER_SUITE_TKIP);
2037 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
2038 WLAN_CIPHER_SUITE_CCMP);
2041 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
2042 WLAN_CIPHER_SUITE_AES_CMAC);
2045 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
2046 "algorithm %d", __func__, alg);
2053 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq);
2055 if (addr && os_memcmp(addr, "\xff\xff\xff\xff\xff\xff", ETH_ALEN) != 0)
2057 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr));
2058 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
2060 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
2061 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
2063 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2064 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE)
2067 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)",
2068 ret, strerror(-ret));
2071 * If we failed or don't need to set the default TX key (below),
2074 if (ret || !set_tx || alg == WPA_ALG_NONE)
2080 if (drv->nlmode == NL80211_IFTYPE_AP && addr)
2082 #endif /* HOSTAPD */
2084 msg = nlmsg_alloc();
2088 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2089 0, NL80211_CMD_SET_KEY, 0);
2090 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
2091 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
2092 if (alg == WPA_ALG_IGTK)
2093 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT);
2095 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
2097 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2101 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; "
2102 "err=%d %s)", ret, strerror(-ret));
2110 static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg,
2111 int key_idx, int defkey,
2112 const u8 *seq, size_t seq_len,
2113 const u8 *key, size_t key_len)
2115 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY);
2119 if (defkey && alg == WPA_ALG_IGTK)
2120 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT);
2122 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
2124 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx);
2129 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
2130 WLAN_CIPHER_SUITE_WEP40);
2132 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
2133 WLAN_CIPHER_SUITE_WEP104);
2136 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP);
2139 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP);
2142 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
2143 WLAN_CIPHER_SUITE_AES_CMAC);
2146 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
2147 "algorithm %d", __func__, alg);
2152 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq);
2154 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key);
2156 nla_nest_end(msg, key_attr);
2164 static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params,
2168 struct nlattr *nl_keys, *nl_key;
2170 for (i = 0; i < 4; i++) {
2171 if (!params->wep_key[i])
2179 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
2181 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS);
2183 goto nla_put_failure;
2185 for (i = 0; i < 4; i++) {
2186 if (!params->wep_key[i])
2189 nl_key = nla_nest_start(msg, i);
2191 goto nla_put_failure;
2193 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i],
2194 params->wep_key[i]);
2195 if (params->wep_key_len[i] == 5)
2196 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
2197 WLAN_CIPHER_SUITE_WEP40);
2199 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
2200 WLAN_CIPHER_SUITE_WEP104);
2202 NLA_PUT_U8(msg, NL80211_KEY_IDX, i);
2204 if (i == params->wep_tx_keyidx)
2205 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
2207 nla_nest_end(msg, nl_key);
2209 nla_nest_end(msg, nl_keys);
2218 static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
2219 const u8 *addr, int cmd, u16 reason_code,
2220 int local_state_change)
2225 msg = nlmsg_alloc();
2229 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0, cmd, 0);
2231 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2232 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code);
2233 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
2234 if (local_state_change)
2235 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
2237 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2240 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
2241 "(%s)", ret, strerror(-ret));
2242 goto nla_put_failure;
2252 static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv,
2253 const u8 *addr, int reason_code)
2255 wpa_printf(MSG_DEBUG, "%s", __func__);
2256 drv->associated = 0;
2257 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISCONNECT,
2262 static int wpa_driver_nl80211_deauthenticate(void *priv, const u8 *addr,
2265 struct i802_bss *bss = priv;
2266 struct wpa_driver_nl80211_data *drv = bss->drv;
2267 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
2268 return wpa_driver_nl80211_disconnect(drv, addr, reason_code);
2269 wpa_printf(MSG_DEBUG, "%s", __func__);
2270 drv->associated = 0;
2271 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE,
2276 static int wpa_driver_nl80211_disassociate(void *priv, const u8 *addr,
2279 struct i802_bss *bss = priv;
2280 struct wpa_driver_nl80211_data *drv = bss->drv;
2281 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
2282 return wpa_driver_nl80211_disconnect(drv, addr, reason_code);
2283 wpa_printf(MSG_DEBUG, "%s", __func__);
2284 drv->associated = 0;
2285 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISASSOCIATE,
2290 static int wpa_driver_nl80211_authenticate(
2291 void *priv, struct wpa_driver_auth_params *params)
2293 struct i802_bss *bss = priv;
2294 struct wpa_driver_nl80211_data *drv = bss->drv;
2297 enum nl80211_auth_type type;
2300 drv->associated = 0;
2301 os_memset(drv->auth_bssid, 0, ETH_ALEN);
2302 /* FIX: IBSS mode */
2303 if (drv->nlmode != NL80211_IFTYPE_STATION)
2304 wpa_driver_nl80211_set_mode(priv, IEEE80211_MODE_INFRA);
2306 if (wpa_driver_nl80211_set_mode(priv, IEEE80211_MODE_INFRA) < 0)
2310 msg = nlmsg_alloc();
2314 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)",
2317 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
2318 NL80211_CMD_AUTHENTICATE, 0);
2320 for (i = 0; i < 4; i++) {
2321 if (!params->wep_key[i])
2323 wpa_driver_nl80211_set_key(bss->ifname, priv, WPA_ALG_WEP,
2325 i == params->wep_tx_keyidx, NULL, 0,
2327 params->wep_key_len[i]);
2328 if (params->wep_tx_keyidx != i)
2330 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0,
2331 params->wep_key[i], params->wep_key_len[i])) {
2337 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2338 if (params->bssid) {
2339 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
2340 MAC2STR(params->bssid));
2341 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
2344 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
2345 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
2348 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
2349 params->ssid, params->ssid_len);
2350 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
2353 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len);
2355 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie);
2357 * TODO: if multiple auth_alg options enabled, try them one by one if
2358 * the AP rejects authentication due to unknown auth alg
2360 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
2361 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2362 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
2363 type = NL80211_AUTHTYPE_SHARED_KEY;
2364 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
2365 type = NL80211_AUTHTYPE_NETWORK_EAP;
2366 else if (params->auth_alg & WPA_AUTH_ALG_FT)
2367 type = NL80211_AUTHTYPE_FT;
2369 goto nla_put_failure;
2370 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
2371 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
2372 if (params->local_state_change) {
2373 wpa_printf(MSG_DEBUG, " * Local state change only");
2374 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
2377 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2380 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
2381 "(%s)", ret, strerror(-ret));
2383 if (ret == -EALREADY && count == 1 && params->bssid &&
2384 !params->local_state_change) {
2386 * mac80211 does not currently accept new
2387 * authentication if we are already authenticated. As a
2388 * workaround, force deauthentication and try again.
2390 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication "
2391 "after forced deauthentication");
2392 wpa_driver_nl80211_deauthenticate(
2394 WLAN_REASON_PREV_AUTH_NOT_VALID);
2398 goto nla_put_failure;
2401 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send "
2410 struct phy_info_arg {
2412 struct hostapd_hw_modes *modes;
2415 static int phy_info_handler(struct nl_msg *msg, void *arg)
2417 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
2418 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2419 struct phy_info_arg *phy_info = arg;
2421 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
2423 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
2424 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
2425 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
2426 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
2427 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG },
2428 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG },
2429 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
2430 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
2433 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
2434 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
2435 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
2436 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = { .type = NLA_FLAG },
2439 struct nlattr *nl_band;
2440 struct nlattr *nl_freq;
2441 struct nlattr *nl_rate;
2442 int rem_band, rem_freq, rem_rate;
2443 struct hostapd_hw_modes *mode;
2444 int idx, mode_is_set;
2446 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2447 genlmsg_attrlen(gnlh, 0), NULL);
2449 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
2452 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) {
2453 mode = os_realloc(phy_info->modes, (*phy_info->num_modes + 1) * sizeof(*mode));
2456 phy_info->modes = mode;
2460 mode = &phy_info->modes[*(phy_info->num_modes)];
2461 memset(mode, 0, sizeof(*mode));
2462 *(phy_info->num_modes) += 1;
2464 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
2465 nla_len(nl_band), NULL);
2467 if (tb_band[NL80211_BAND_ATTR_HT_CAPA]) {
2468 mode->ht_capab = nla_get_u16(
2469 tb_band[NL80211_BAND_ATTR_HT_CAPA]);
2472 if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) {
2473 mode->a_mpdu_params |= nla_get_u8(
2474 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) &
2478 if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) {
2479 mode->a_mpdu_params |= nla_get_u8(
2480 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) <<
2484 if (tb_band[NL80211_BAND_ATTR_HT_MCS_SET] &&
2485 nla_len(tb_band[NL80211_BAND_ATTR_HT_MCS_SET])) {
2487 mcs = nla_data(tb_band[NL80211_BAND_ATTR_HT_MCS_SET]);
2488 os_memcpy(mode->mcs_set, mcs, 16);
2491 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
2492 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
2493 nla_len(nl_freq), freq_policy);
2494 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
2496 mode->num_channels++;
2499 mode->channels = os_zalloc(mode->num_channels * sizeof(struct hostapd_channel_data));
2500 if (!mode->channels)
2505 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
2506 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
2507 nla_len(nl_freq), freq_policy);
2508 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
2511 mode->channels[idx].freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
2512 mode->channels[idx].flag = 0;
2515 /* crude heuristic */
2516 if (mode->channels[idx].freq < 4000)
2517 mode->mode = HOSTAPD_MODE_IEEE80211B;
2519 mode->mode = HOSTAPD_MODE_IEEE80211A;
2523 /* crude heuristic */
2524 if (mode->channels[idx].freq < 4000)
2525 if (mode->channels[idx].freq == 2484)
2526 mode->channels[idx].chan = 14;
2528 mode->channels[idx].chan = (mode->channels[idx].freq - 2407) / 5;
2530 mode->channels[idx].chan = mode->channels[idx].freq/5 - 1000;
2532 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
2533 mode->channels[idx].flag |=
2534 HOSTAPD_CHAN_DISABLED;
2535 if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
2536 mode->channels[idx].flag |=
2537 HOSTAPD_CHAN_PASSIVE_SCAN;
2538 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS])
2539 mode->channels[idx].flag |=
2540 HOSTAPD_CHAN_NO_IBSS;
2541 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
2542 mode->channels[idx].flag |=
2545 if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] &&
2546 !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
2547 mode->channels[idx].max_tx_power =
2548 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100;
2553 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
2554 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
2555 nla_len(nl_rate), rate_policy);
2556 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
2561 mode->rates = os_zalloc(mode->num_rates * sizeof(int));
2567 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
2568 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
2569 nla_len(nl_rate), rate_policy);
2570 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
2572 mode->rates[idx] = nla_get_u32(tb_rate[NL80211_BITRATE_ATTR_RATE]);
2574 /* crude heuristic */
2575 if (mode->mode == HOSTAPD_MODE_IEEE80211B &&
2576 mode->rates[idx] > 200)
2577 mode->mode = HOSTAPD_MODE_IEEE80211G;
2586 static struct hostapd_hw_modes *
2587 wpa_driver_nl80211_add_11b(struct hostapd_hw_modes *modes, u16 *num_modes)
2590 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
2591 int i, mode11g_idx = -1;
2593 /* If only 802.11g mode is included, use it to construct matching
2594 * 802.11b mode data. */
2596 for (m = 0; m < *num_modes; m++) {
2597 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
2598 return modes; /* 802.11b already included */
2599 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
2603 if (mode11g_idx < 0)
2604 return modes; /* 2.4 GHz band not supported at all */
2606 nmodes = os_realloc(modes, (*num_modes + 1) * sizeof(*nmodes));
2608 return modes; /* Could not add 802.11b mode */
2610 mode = &nmodes[*num_modes];
2611 os_memset(mode, 0, sizeof(*mode));
2615 mode->mode = HOSTAPD_MODE_IEEE80211B;
2617 mode11g = &modes[mode11g_idx];
2618 mode->num_channels = mode11g->num_channels;
2619 mode->channels = os_malloc(mode11g->num_channels *
2620 sizeof(struct hostapd_channel_data));
2621 if (mode->channels == NULL) {
2623 return modes; /* Could not add 802.11b mode */
2625 os_memcpy(mode->channels, mode11g->channels,
2626 mode11g->num_channels * sizeof(struct hostapd_channel_data));
2628 mode->num_rates = 0;
2629 mode->rates = os_malloc(4 * sizeof(int));
2630 if (mode->rates == NULL) {
2631 os_free(mode->channels);
2633 return modes; /* Could not add 802.11b mode */
2636 for (i = 0; i < mode11g->num_rates; i++) {
2637 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 &&
2638 mode11g->rates[i] != 55 && mode11g->rates[i] != 110)
2640 mode->rates[mode->num_rates] = mode11g->rates[i];
2642 if (mode->num_rates == 4)
2646 if (mode->num_rates == 0) {
2647 os_free(mode->channels);
2648 os_free(mode->rates);
2650 return modes; /* No 802.11b rates */
2653 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
2660 static struct hostapd_hw_modes *
2661 wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
2663 struct i802_bss *bss = priv;
2664 struct wpa_driver_nl80211_data *drv = bss->drv;
2666 struct phy_info_arg result = {
2667 .num_modes = num_modes,
2674 msg = nlmsg_alloc();
2678 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2679 0, NL80211_CMD_GET_WIPHY, 0);
2681 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2683 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0)
2684 return wpa_driver_nl80211_add_11b(result.modes, num_modes);
2690 static int wpa_driver_nl80211_send_frame(struct wpa_driver_nl80211_data *drv,
2691 const void *data, size_t len,
2695 0x00, 0x00, /* radiotap version */
2696 0x0e, 0x00, /* radiotap length */
2697 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */
2698 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */
2700 0x00, 0x00, /* RX and TX flags to indicate that */
2701 0x00, 0x00, /* this is the injected frame directly */
2703 struct iovec iov[2] = {
2705 .iov_base = &rtap_hdr,
2706 .iov_len = sizeof(rtap_hdr),
2709 .iov_base = (void *) data,
2713 struct msghdr msg = {
2718 .msg_control = NULL,
2719 .msg_controllen = 0,
2724 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP;
2726 return sendmsg(drv->monitor_sock, &msg, 0);
2730 static int wpa_driver_nl80211_send_mlme(void *priv, const u8 *data,
2733 struct i802_bss *bss = priv;
2734 struct wpa_driver_nl80211_data *drv = bss->drv;
2735 struct ieee80211_mgmt *mgmt;
2739 mgmt = (struct ieee80211_mgmt *) data;
2740 fc = le_to_host16(mgmt->frame_control);
2742 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
2743 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) {
2745 * Only one of the authentication frame types is encrypted.
2746 * In order for static WEP encryption to work properly (i.e.,
2747 * to not encrypt the frame), we need to tell mac80211 about
2748 * the frames that must not be encrypted.
2750 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
2751 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction);
2752 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3)
2756 return wpa_driver_nl80211_send_frame(drv, data, data_len, encrypt);
2760 static int wpa_driver_nl80211_set_beacon(void *priv,
2761 const u8 *head, size_t head_len,
2762 const u8 *tail, size_t tail_len,
2763 int dtim_period, int beacon_int)
2765 struct i802_bss *bss = priv;
2766 struct wpa_driver_nl80211_data *drv = bss->drv;
2768 u8 cmd = NL80211_CMD_NEW_BEACON;
2771 int ifindex = if_nametoindex(bss->ifname);
2773 beacon_set = bss->beacon_set;
2775 msg = nlmsg_alloc();
2779 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)",
2782 cmd = NL80211_CMD_SET_BEACON;
2784 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2786 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, head_len, head);
2787 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, tail_len, tail);
2788 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
2789 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, beacon_int);
2790 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, dtim_period);
2792 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2794 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)",
2795 ret, strerror(-ret));
2797 bss->beacon_set = 1;
2805 static int wpa_driver_nl80211_set_freq(struct wpa_driver_nl80211_data *drv,
2806 int freq, int ht_enabled,
2807 int sec_channel_offset)
2812 msg = nlmsg_alloc();
2816 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
2817 NL80211_CMD_SET_WIPHY, 0);
2819 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2820 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
2822 switch (sec_channel_offset) {
2824 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2825 NL80211_CHAN_HT40MINUS);
2828 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2829 NL80211_CHAN_HT40PLUS);
2832 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2838 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2841 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): "
2842 "%d (%s)", freq, ret, strerror(-ret));
2848 static int wpa_driver_nl80211_sta_add(void *priv,
2849 struct hostapd_sta_add_params *params)
2851 struct i802_bss *bss = priv;
2852 struct wpa_driver_nl80211_data *drv = bss->drv;
2856 msg = nlmsg_alloc();
2860 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2861 0, NL80211_CMD_NEW_STATION, 0);
2863 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
2864 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr);
2865 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid);
2866 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len,
2867 params->supp_rates);
2868 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL,
2869 params->listen_interval);
2870 if (params->ht_capabilities) {
2871 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY,
2872 sizeof(*params->ht_capabilities),
2873 params->ht_capabilities);
2876 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2878 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_NEW_STATION "
2879 "result: %d (%s)", ret, strerror(-ret));
2887 static int wpa_driver_nl80211_sta_remove(void *priv, const u8 *addr)
2889 struct i802_bss *bss = priv;
2890 struct wpa_driver_nl80211_data *drv = bss->drv;
2894 msg = nlmsg_alloc();
2898 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2899 0, NL80211_CMD_DEL_STATION, 0);
2901 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
2902 if_nametoindex(bss->ifname));
2903 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
2905 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2914 static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
2919 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx);
2922 /* stop listening for EAPOL on this interface */
2923 del_ifidx(drv, ifidx);
2924 #endif /* HOSTAPD */
2926 msg = nlmsg_alloc();
2928 goto nla_put_failure;
2930 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2931 0, NL80211_CMD_DEL_INTERFACE, 0);
2932 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx);
2934 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
2937 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx);
2941 static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv,
2943 enum nl80211_iftype iftype,
2944 const u8 *addr, int wds)
2946 struct nl_msg *msg, *flags = NULL;
2950 msg = nlmsg_alloc();
2954 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2955 0, NL80211_CMD_NEW_INTERFACE, 0);
2956 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2957 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname);
2958 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype);
2960 if (iftype == NL80211_IFTYPE_MONITOR) {
2963 flags = nlmsg_alloc();
2965 goto nla_put_failure;
2967 NLA_PUT_FLAG(flags, NL80211_MNTR_FLAG_COOK_FRAMES);
2969 err = nla_put_nested(msg, NL80211_ATTR_MNTR_FLAGS, flags);
2974 goto nla_put_failure;
2976 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds);
2979 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2982 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)",
2983 ifname, ret, strerror(-ret));
2987 ifidx = if_nametoindex(ifname);
2988 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d",
2995 /* start listening for EAPOL on this interface */
2996 add_ifidx(drv, ifidx);
2997 #endif /* HOSTAPD */
2999 if (addr && iftype != NL80211_IFTYPE_MONITOR &&
3000 linux_set_ifhwaddr(drv->ioctl_sock, ifname, addr)) {
3001 nl80211_remove_iface(drv, ifidx);
3009 static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
3010 const char *ifname, enum nl80211_iftype iftype,
3011 const u8 *addr, int wds)
3015 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds);
3017 /* if error occured and interface exists already */
3018 if (ret == -ENFILE && if_nametoindex(ifname)) {
3019 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname);
3021 /* Try to remove the interface that was already there. */
3022 nl80211_remove_iface(drv, if_nametoindex(ifname));
3024 /* Try to create the interface again */
3025 ret = nl80211_create_iface_once(drv, ifname, iftype, addr,
3029 if (ret >= 0 && drv->disable_11b_rates)
3030 nl80211_disable_11b_rates(drv, ret, 1);
3036 static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok)
3038 struct ieee80211_hdr *hdr;
3040 union wpa_event_data event;
3042 hdr = (struct ieee80211_hdr *) buf;
3043 fc = le_to_host16(hdr->frame_control);
3045 os_memset(&event, 0, sizeof(event));
3046 event.tx_status.type = WLAN_FC_GET_TYPE(fc);
3047 event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
3048 event.tx_status.dst = hdr->addr1;
3049 event.tx_status.data = buf;
3050 event.tx_status.data_len = len;
3051 event.tx_status.ack = ok;
3052 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event);
3056 static void from_unknown_sta(struct wpa_driver_nl80211_data *drv,
3057 u8 *buf, size_t len)
3059 union wpa_event_data event;
3060 os_memset(&event, 0, sizeof(event));
3061 event.rx_from_unknown.frame = buf;
3062 event.rx_from_unknown.len = len;
3063 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event);
3067 static void handle_frame(struct wpa_driver_nl80211_data *drv,
3068 u8 *buf, size_t len, int datarate, int ssi_signal)
3070 struct ieee80211_hdr *hdr;
3072 union wpa_event_data event;
3074 hdr = (struct ieee80211_hdr *) buf;
3075 fc = le_to_host16(hdr->frame_control);
3077 switch (WLAN_FC_GET_TYPE(fc)) {
3078 case WLAN_FC_TYPE_MGMT:
3079 os_memset(&event, 0, sizeof(event));
3080 event.rx_mgmt.frame = buf;
3081 event.rx_mgmt.frame_len = len;
3082 event.rx_mgmt.datarate = datarate;
3083 event.rx_mgmt.ssi_signal = ssi_signal;
3084 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
3086 case WLAN_FC_TYPE_CTRL:
3087 /* can only get here with PS-Poll frames */
3088 wpa_printf(MSG_DEBUG, "CTRL");
3089 from_unknown_sta(drv, buf, len);
3091 case WLAN_FC_TYPE_DATA:
3092 from_unknown_sta(drv, buf, len);
3098 static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx)
3100 struct wpa_driver_nl80211_data *drv = eloop_ctx;
3102 unsigned char buf[3000];
3103 struct ieee80211_radiotap_iterator iter;
3105 int datarate = 0, ssi_signal = 0;
3106 int injected = 0, failed = 0, rxflags = 0;
3108 len = recv(sock, buf, sizeof(buf), 0);
3114 if (drv->nlmode == NL80211_IFTYPE_STATION && !drv->probe_req_report) {
3115 wpa_printf(MSG_DEBUG, "nl80211: Ignore monitor interface "
3116 "frame since Probe Request reporting is disabled");
3120 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) {
3121 printf("received invalid radiotap frame\n");
3126 ret = ieee80211_radiotap_iterator_next(&iter);
3130 printf("received invalid radiotap frame (%d)\n", ret);
3133 switch (iter.this_arg_index) {
3134 case IEEE80211_RADIOTAP_FLAGS:
3135 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS)
3138 case IEEE80211_RADIOTAP_RX_FLAGS:
3141 case IEEE80211_RADIOTAP_TX_FLAGS:
3143 failed = le_to_host16((*(uint16_t *) iter.this_arg)) &
3144 IEEE80211_RADIOTAP_F_TX_FAIL;
3146 case IEEE80211_RADIOTAP_DATA_RETRIES:
3148 case IEEE80211_RADIOTAP_CHANNEL:
3149 /* TODO: convert from freq/flags to channel number */
3151 case IEEE80211_RADIOTAP_RATE:
3152 datarate = *iter.this_arg * 5;
3154 case IEEE80211_RADIOTAP_DB_ANTSIGNAL:
3155 ssi_signal = *iter.this_arg;
3160 if (rxflags && injected)
3164 handle_frame(drv, buf + iter.max_length,
3165 len - iter.max_length, datarate, ssi_signal);
3167 handle_tx_callback(drv->ctx, buf + iter.max_length,
3168 len - iter.max_length, !failed);
3173 * we post-process the filter code later and rewrite
3174 * this to the offset to the last instruction
3179 static struct sock_filter msock_filter_insns[] = {
3181 * do a little-endian load of the radiotap length field
3183 /* load lower byte into A */
3184 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2),
3185 /* put it into X (== index register) */
3186 BPF_STMT(BPF_MISC| BPF_TAX, 0),
3187 /* load upper byte into A */
3188 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3),
3189 /* left-shift it by 8 */
3190 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8),
3192 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0),
3193 /* put result into X */
3194 BPF_STMT(BPF_MISC| BPF_TAX, 0),
3197 * Allow management frames through, this also gives us those
3198 * management frames that we sent ourselves with status
3200 /* load the lower byte of the IEEE 802.11 frame control field */
3201 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
3202 /* mask off frame type and version */
3203 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF),
3204 /* accept frame if it's both 0, fall through otherwise */
3205 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0),
3208 * TODO: add a bit to radiotap RX flags that indicates
3209 * that the sending station is not associated, then
3210 * add a filter here that filters on our DA and that flag
3211 * to allow us to deauth frames to that bad station.
3213 * Not a regression -- we didn't do it before either.
3218 * drop non-data frames
3220 /* load the lower byte of the frame control field */
3221 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
3222 /* mask off QoS bit */
3223 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c),
3224 /* drop non-data frames */
3225 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL),
3227 /* load the upper byte of the frame control field */
3228 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1),
3229 /* mask off toDS/fromDS */
3230 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03),
3231 /* accept WDS frames */
3232 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0),
3235 * add header length to index
3237 /* load the lower byte of the frame control field */
3238 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
3239 /* mask off QoS bit */
3240 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80),
3241 /* right shift it by 6 to give 0 or 2 */
3242 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6),
3243 /* add data frame header length */
3244 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24),
3245 /* add index, was start of 802.11 header */
3246 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0),
3247 /* move to index, now start of LL header */
3248 BPF_STMT(BPF_MISC | BPF_TAX, 0),
3251 * Accept empty data frames, we use those for
3254 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0),
3255 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0),
3258 * Accept EAPOL frames
3260 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0),
3261 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL),
3262 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4),
3263 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL),
3265 /* keep these last two statements or change the code below */
3266 /* return 0 == "DROP" */
3267 BPF_STMT(BPF_RET | BPF_K, 0),
3268 /* return ~0 == "keep all" */
3269 BPF_STMT(BPF_RET | BPF_K, ~0),
3272 static struct sock_fprog msock_filter = {
3273 .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]),
3274 .filter = msock_filter_insns,
3278 static int add_monitor_filter(int s)
3282 /* rewrite all PASS/FAIL jump offsets */
3283 for (idx = 0; idx < msock_filter.len; idx++) {
3284 struct sock_filter *insn = &msock_filter_insns[idx];
3286 if (BPF_CLASS(insn->code) == BPF_JMP) {
3287 if (insn->code == (BPF_JMP|BPF_JA)) {
3288 if (insn->k == PASS)
3289 insn->k = msock_filter.len - idx - 2;
3290 else if (insn->k == FAIL)
3291 insn->k = msock_filter.len - idx - 3;
3294 if (insn->jt == PASS)
3295 insn->jt = msock_filter.len - idx - 2;
3296 else if (insn->jt == FAIL)
3297 insn->jt = msock_filter.len - idx - 3;
3299 if (insn->jf == PASS)
3300 insn->jf = msock_filter.len - idx - 2;
3301 else if (insn->jf == FAIL)
3302 insn->jf = msock_filter.len - idx - 3;
3306 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER,
3307 &msock_filter, sizeof(msock_filter))) {
3308 perror("SO_ATTACH_FILTER");
3316 static void nl80211_remove_monitor_interface(
3317 struct wpa_driver_nl80211_data *drv)
3319 if (drv->monitor_ifidx >= 0) {
3320 nl80211_remove_iface(drv, drv->monitor_ifidx);
3321 drv->monitor_ifidx = -1;
3323 if (drv->monitor_sock >= 0) {
3324 eloop_unregister_read_sock(drv->monitor_sock);
3325 close(drv->monitor_sock);
3326 drv->monitor_sock = -1;
3332 nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv)
3335 struct sockaddr_ll ll;
3339 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss.ifname);
3340 buf[IFNAMSIZ - 1] = '\0';
3342 drv->monitor_ifidx =
3343 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL,
3346 if (drv->monitor_ifidx < 0)
3349 if (linux_set_iface_flags(drv->ioctl_sock, buf, 1))
3352 memset(&ll, 0, sizeof(ll));
3353 ll.sll_family = AF_PACKET;
3354 ll.sll_ifindex = drv->monitor_ifidx;
3355 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
3356 if (drv->monitor_sock < 0) {
3357 perror("socket[PF_PACKET,SOCK_RAW]");
3361 if (add_monitor_filter(drv->monitor_sock)) {
3362 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor "
3363 "interface; do filtering in user space");
3364 /* This works, but will cost in performance. */
3367 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) {
3368 perror("monitor socket bind");
3372 optlen = sizeof(optval);
3375 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) {
3376 perror("Failed to set socket priority");
3380 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read,
3382 printf("Could not register monitor read socket\n");
3388 nl80211_remove_monitor_interface(drv);
3393 static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
3395 static int wpa_driver_nl80211_hapd_send_eapol(
3396 void *priv, const u8 *addr, const u8 *data,
3397 size_t data_len, int encrypt, const u8 *own_addr)
3399 struct i802_bss *bss = priv;
3400 struct wpa_driver_nl80211_data *drv = bss->drv;
3401 struct ieee80211_hdr *hdr;
3406 int qos = sta->flags & WPA_STA_WMM;
3411 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 +
3413 hdr = os_zalloc(len);
3415 printf("malloc() failed for i802_send_data(len=%lu)\n",
3416 (unsigned long) len);
3420 hdr->frame_control =
3421 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA);
3422 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS);
3424 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP);
3425 #if 0 /* To be enabled if qos determination is added above */
3427 hdr->frame_control |=
3428 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4);
3432 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN);
3433 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
3434 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
3435 pos = (u8 *) (hdr + 1);
3437 #if 0 /* To be enabled if qos determination is added above */
3439 /* add an empty QoS header if needed */
3446 memcpy(pos, rfc1042_header, sizeof(rfc1042_header));
3447 pos += sizeof(rfc1042_header);
3448 WPA_PUT_BE16(pos, ETH_P_PAE);
3450 memcpy(pos, data, data_len);
3452 res = wpa_driver_nl80211_send_frame(drv, (u8 *) hdr, len, encrypt);
3454 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - "
3456 (unsigned long) len, errno, strerror(errno));
3464 static u32 sta_flags_nl80211(int flags)
3468 if (flags & WPA_STA_AUTHORIZED)
3469 f |= BIT(NL80211_STA_FLAG_AUTHORIZED);
3470 if (flags & WPA_STA_WMM)
3471 f |= BIT(NL80211_STA_FLAG_WME);
3472 if (flags & WPA_STA_SHORT_PREAMBLE)
3473 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
3474 if (flags & WPA_STA_MFP)
3475 f |= BIT(NL80211_STA_FLAG_MFP);
3481 static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr,
3483 int flags_or, int flags_and)
3485 struct i802_bss *bss = priv;
3486 struct wpa_driver_nl80211_data *drv = bss->drv;
3487 struct nl_msg *msg, *flags = NULL;
3488 struct nl80211_sta_flag_update upd;
3490 msg = nlmsg_alloc();
3494 flags = nlmsg_alloc();
3500 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3501 0, NL80211_CMD_SET_STATION, 0);
3503 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
3504 if_nametoindex(bss->ifname));
3505 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
3508 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This
3509 * can be removed eventually.
3511 if (total_flags & WPA_STA_AUTHORIZED)
3512 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_AUTHORIZED);
3514 if (total_flags & WPA_STA_WMM)
3515 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_WME);
3517 if (total_flags & WPA_STA_SHORT_PREAMBLE)
3518 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_SHORT_PREAMBLE);
3520 if (total_flags & WPA_STA_MFP)
3521 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_MFP);
3523 if (nla_put_nested(msg, NL80211_ATTR_STA_FLAGS, flags))
3524 goto nla_put_failure;
3526 os_memset(&upd, 0, sizeof(upd));
3527 upd.mask = sta_flags_nl80211(flags_or | ~flags_and);
3528 upd.set = sta_flags_nl80211(flags_or);
3529 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
3533 return send_and_recv_msgs(drv, msg, NULL, NULL);
3540 static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv,
3541 struct wpa_driver_associate_params *params)
3543 if (wpa_driver_nl80211_set_mode(&drv->first_bss, params->mode) ||
3544 wpa_driver_nl80211_set_freq(drv, params->freq, 0, 0)) {
3545 nl80211_remove_monitor_interface(drv);
3549 /* TODO: setup monitor interface (and add code somewhere to remove this
3550 * when AP mode is stopped; associate with mode != 2 or drv_deinit) */
3556 static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv)
3561 msg = nlmsg_alloc();
3565 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
3566 NL80211_CMD_LEAVE_IBSS, 0);
3567 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3568 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3571 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d "
3572 "(%s)", ret, strerror(-ret));
3573 goto nla_put_failure;
3577 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully");
3585 static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv,
3586 struct wpa_driver_associate_params *params)
3592 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex);
3594 if (wpa_driver_nl80211_set_mode(&drv->first_bss, params->mode)) {
3595 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into "
3601 msg = nlmsg_alloc();
3605 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
3606 NL80211_CMD_JOIN_IBSS, 0);
3607 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3609 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid))
3610 goto nla_put_failure;
3612 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
3613 params->ssid, params->ssid_len);
3614 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
3616 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
3617 drv->ssid_len = params->ssid_len;
3619 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
3620 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
3622 ret = nl80211_set_conn_keys(params, msg);
3624 goto nla_put_failure;
3626 if (params->wpa_ie) {
3627 wpa_hexdump(MSG_DEBUG,
3628 " * Extra IEs for Beacon/Probe Response frames",
3629 params->wpa_ie, params->wpa_ie_len);
3630 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
3634 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3637 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)",
3638 ret, strerror(-ret));
3640 if (ret == -EALREADY && count == 1) {
3641 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after "
3643 nl80211_leave_ibss(drv);
3648 goto nla_put_failure;
3651 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully");
3659 static int wpa_driver_nl80211_connect(
3660 struct wpa_driver_nl80211_data *drv,
3661 struct wpa_driver_associate_params *params)
3664 enum nl80211_auth_type type;
3667 msg = nlmsg_alloc();
3671 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex);
3672 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
3673 NL80211_CMD_CONNECT, 0);
3675 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3676 if (params->bssid) {
3677 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
3678 MAC2STR(params->bssid));
3679 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
3682 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
3683 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
3686 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
3687 params->ssid, params->ssid_len);
3688 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
3690 if (params->ssid_len > sizeof(drv->ssid))
3691 goto nla_put_failure;
3692 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
3693 drv->ssid_len = params->ssid_len;
3695 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
3697 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
3700 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
3701 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
3702 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
3703 type = NL80211_AUTHTYPE_SHARED_KEY;
3704 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
3705 type = NL80211_AUTHTYPE_NETWORK_EAP;
3706 else if (params->auth_alg & WPA_AUTH_ALG_FT)
3707 type = NL80211_AUTHTYPE_FT;
3709 goto nla_put_failure;
3711 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
3712 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
3714 if (params->wpa_ie && params->wpa_ie_len) {
3715 enum nl80211_wpa_versions ver;
3717 if (params->wpa_ie[0] == WLAN_EID_RSN)
3718 ver = NL80211_WPA_VERSION_2;
3720 ver = NL80211_WPA_VERSION_1;
3722 wpa_printf(MSG_DEBUG, " * WPA Version %d", ver);
3723 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
3726 if (params->pairwise_suite != CIPHER_NONE) {
3729 switch (params->pairwise_suite) {
3731 cipher = WLAN_CIPHER_SUITE_WEP40;
3734 cipher = WLAN_CIPHER_SUITE_WEP104;
3737 cipher = WLAN_CIPHER_SUITE_CCMP;
3741 cipher = WLAN_CIPHER_SUITE_TKIP;
3744 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
3747 if (params->group_suite != CIPHER_NONE) {
3750 switch (params->group_suite) {
3752 cipher = WLAN_CIPHER_SUITE_WEP40;
3755 cipher = WLAN_CIPHER_SUITE_WEP104;
3758 cipher = WLAN_CIPHER_SUITE_CCMP;
3762 cipher = WLAN_CIPHER_SUITE_TKIP;
3765 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
3768 if (params->key_mgmt_suite == KEY_MGMT_802_1X ||
3769 params->key_mgmt_suite == KEY_MGMT_PSK) {
3770 int mgmt = WLAN_AKM_SUITE_PSK;
3772 switch (params->key_mgmt_suite) {
3773 case KEY_MGMT_802_1X:
3774 mgmt = WLAN_AKM_SUITE_8021X;
3778 mgmt = WLAN_AKM_SUITE_PSK;
3781 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt);
3784 ret = nl80211_set_conn_keys(params, msg);
3786 goto nla_put_failure;
3788 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3791 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d "
3792 "(%s)", ret, strerror(-ret));
3793 goto nla_put_failure;
3796 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully");
3805 static int wpa_driver_nl80211_associate(
3806 void *priv, struct wpa_driver_associate_params *params)
3808 struct i802_bss *bss = priv;
3809 struct wpa_driver_nl80211_data *drv = bss->drv;
3813 if (params->mode == IEEE80211_MODE_AP)
3814 return wpa_driver_nl80211_ap(drv, params);
3816 if (params->mode == IEEE80211_MODE_IBSS)
3817 return wpa_driver_nl80211_ibss(drv, params);
3819 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) {
3820 if (wpa_driver_nl80211_set_mode(priv, params->mode) < 0)
3822 return wpa_driver_nl80211_connect(drv, params);
3825 drv->associated = 0;
3827 msg = nlmsg_alloc();
3831 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)",
3833 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
3834 NL80211_CMD_ASSOCIATE, 0);
3836 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3837 if (params->bssid) {
3838 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
3839 MAC2STR(params->bssid));
3840 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
3843 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
3844 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
3845 drv->assoc_freq = params->freq;
3847 drv->assoc_freq = 0;
3849 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
3850 params->ssid, params->ssid_len);
3851 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
3853 if (params->ssid_len > sizeof(drv->ssid))
3854 goto nla_put_failure;
3855 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
3856 drv->ssid_len = params->ssid_len;
3858 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
3860 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
3863 #ifdef CONFIG_IEEE80211W
3864 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED)
3865 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED);
3866 #endif /* CONFIG_IEEE80211W */
3868 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
3870 if (params->prev_bssid) {
3871 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR,
3872 MAC2STR(params->prev_bssid));
3873 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN,
3874 params->prev_bssid);
3877 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3880 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
3881 "(%s)", ret, strerror(-ret));
3882 nl80211_dump_scan(drv);
3883 goto nla_put_failure;
3886 wpa_printf(MSG_DEBUG, "nl80211: Association request send "
3895 static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv,
3896 int ifindex, int mode)
3901 msg = nlmsg_alloc();
3905 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3906 0, NL80211_CMD_SET_INTERFACE, 0);
3907 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
3908 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode);
3910 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3914 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:"
3915 " %d (%s)", ifindex, mode, ret, strerror(-ret));
3920 static int wpa_driver_nl80211_set_mode(void *priv, int mode)
3922 struct i802_bss *bss = priv;
3923 struct wpa_driver_nl80211_data *drv = bss->drv;
3929 nlmode = NL80211_IFTYPE_STATION;
3932 nlmode = NL80211_IFTYPE_ADHOC;
3935 nlmode = NL80211_IFTYPE_AP;
3941 if (nl80211_set_mode(drv, drv->ifindex, nlmode) == 0) {
3942 drv->nlmode = nlmode;
3947 if (nlmode == drv->nlmode) {
3948 wpa_printf(MSG_DEBUG, "nl80211: Interface already in "
3949 "requested mode - ignore error");
3951 goto done; /* Already in the requested mode */
3954 /* mac80211 doesn't allow mode changes while the device is up, so
3955 * take the device down, try to set the mode again, and bring the
3958 if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 0) == 0) {
3959 /* Try to set the mode again while the interface is down */
3960 ret = nl80211_set_mode(drv, drv->ifindex, nlmode);
3961 if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 1))
3966 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while "
3967 "interface is down");
3968 drv->nlmode = nlmode;
3972 if (!ret && nlmode == NL80211_IFTYPE_AP) {
3973 /* Setup additional AP mode functionality if needed */
3974 if (drv->monitor_ifidx < 0 &&
3975 nl80211_create_monitor_interface(drv))
3977 } else if (!ret && nlmode != NL80211_IFTYPE_AP) {
3978 /* Remove additional AP mode functionality */
3979 nl80211_remove_monitor_interface(drv);
3980 bss->beacon_set = 0;
3984 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d "
3985 "from %d failed", nlmode, drv->nlmode);
3991 static int wpa_driver_nl80211_get_capa(void *priv,
3992 struct wpa_driver_capa *capa)
3994 struct i802_bss *bss = priv;
3995 struct wpa_driver_nl80211_data *drv = bss->drv;
3996 if (!drv->has_capability)
3998 os_memcpy(capa, &drv->capa, sizeof(*capa));
4003 static int wpa_driver_nl80211_set_operstate(void *priv, int state)
4005 struct i802_bss *bss = priv;
4006 struct wpa_driver_nl80211_data *drv = bss->drv;
4008 wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)",
4009 __func__, drv->operstate, state, state ? "UP" : "DORMANT");
4010 drv->operstate = state;
4011 return netlink_send_oper_ifla(drv->netlink, drv->ifindex, -1,
4012 state ? IF_OPER_UP : IF_OPER_DORMANT);
4016 static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized)
4018 struct i802_bss *bss = priv;
4019 struct wpa_driver_nl80211_data *drv = bss->drv;
4021 struct nl80211_sta_flag_update upd;
4023 msg = nlmsg_alloc();
4027 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4028 0, NL80211_CMD_SET_STATION, 0);
4030 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
4031 if_nametoindex(bss->ifname));
4032 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
4034 os_memset(&upd, 0, sizeof(upd));
4035 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED);
4037 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED);
4038 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
4040 return send_and_recv_msgs(drv, msg, NULL, NULL);
4048 static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
4053 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d",
4055 for (i = 0; i < drv->num_if_indices; i++) {
4056 if (drv->if_indices[i] == 0) {
4057 drv->if_indices[i] = ifidx;
4062 if (drv->if_indices != drv->default_if_indices)
4063 old = drv->if_indices;
4067 drv->if_indices = os_realloc(old,
4068 sizeof(int) * (drv->num_if_indices + 1));
4069 if (!drv->if_indices) {
4071 drv->if_indices = drv->default_if_indices;
4073 drv->if_indices = old;
4074 wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
4076 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
4079 drv->if_indices[drv->num_if_indices] = ifidx;
4080 drv->num_if_indices++;
4084 static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
4088 for (i = 0; i < drv->num_if_indices; i++) {
4089 if (drv->if_indices[i] == ifidx) {
4090 drv->if_indices[i] = 0;
4097 static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
4101 for (i = 0; i < drv->num_if_indices; i++)
4102 if (drv->if_indices[i] == ifidx)
4109 static inline int min_int(int a, int b)
4117 static int get_key_handler(struct nl_msg *msg, void *arg)
4119 struct nlattr *tb[NL80211_ATTR_MAX + 1];
4120 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
4122 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
4123 genlmsg_attrlen(gnlh, 0), NULL);
4126 * TODO: validate the key index and mac address!
4127 * Otherwise, there's a race condition as soon as
4128 * the kernel starts sending key notifications.
4131 if (tb[NL80211_ATTR_KEY_SEQ])
4132 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]),
4133 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6));
4138 static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
4141 struct i802_bss *bss = priv;
4142 struct wpa_driver_nl80211_data *drv = bss->drv;
4145 msg = nlmsg_alloc();
4149 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4150 0, NL80211_CMD_GET_KEY, 0);
4153 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
4154 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
4155 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
4159 return send_and_recv_msgs(drv, msg, get_key_handler, seq);
4165 static int i802_set_rate_sets(void *priv, int *supp_rates, int *basic_rates,
4168 struct i802_bss *bss = priv;
4169 struct wpa_driver_nl80211_data *drv = bss->drv;
4171 u8 rates[NL80211_MAX_SUPP_RATES];
4175 msg = nlmsg_alloc();
4179 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
4180 NL80211_CMD_SET_BSS, 0);
4182 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; i++)
4183 rates[rates_len++] = basic_rates[i] / 5;
4185 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates);
4187 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
4189 return send_and_recv_msgs(drv, msg, NULL, NULL);
4195 /* Set kernel driver on given frequency (MHz) */
4196 static int i802_set_freq(void *priv, struct hostapd_freq_params *freq)
4198 struct i802_bss *bss = priv;
4199 struct wpa_driver_nl80211_data *drv = bss->drv;
4200 return wpa_driver_nl80211_set_freq(drv, freq->freq, freq->ht_enabled,
4201 freq->sec_channel_offset);
4205 static int i802_set_rts(void *priv, int rts)
4207 struct i802_bss *bss = priv;
4208 struct wpa_driver_nl80211_data *drv = bss->drv;
4213 msg = nlmsg_alloc();
4222 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4223 0, NL80211_CMD_SET_WIPHY, 0);
4224 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4225 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val);
4227 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4231 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: "
4232 "%d (%s)", rts, ret, strerror(-ret));
4237 static int i802_set_frag(void *priv, int frag)
4239 struct i802_bss *bss = priv;
4240 struct wpa_driver_nl80211_data *drv = bss->drv;
4245 msg = nlmsg_alloc();
4254 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4255 0, NL80211_CMD_SET_WIPHY, 0);
4256 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4257 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val);
4259 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4263 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold "
4264 "%d: %d (%s)", frag, ret, strerror(-ret));
4269 static int i802_flush(void *priv)
4271 struct i802_bss *bss = priv;
4272 struct wpa_driver_nl80211_data *drv = bss->drv;
4275 msg = nlmsg_alloc();
4279 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4280 0, NL80211_CMD_DEL_STATION, 0);
4283 * XXX: FIX! this needs to flush all VLANs too
4285 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
4286 if_nametoindex(bss->ifname));
4288 return send_and_recv_msgs(drv, msg, NULL, NULL);
4294 static int get_sta_handler(struct nl_msg *msg, void *arg)
4296 struct nlattr *tb[NL80211_ATTR_MAX + 1];
4297 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
4298 struct hostap_sta_driver_data *data = arg;
4299 struct nlattr *stats[NL80211_STA_INFO_MAX + 1];
4300 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
4301 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
4302 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
4303 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
4304 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
4305 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
4308 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
4309 genlmsg_attrlen(gnlh, 0), NULL);
4312 * TODO: validate the interface and mac address!
4313 * Otherwise, there's a race condition as soon as
4314 * the kernel starts sending station notifications.
4317 if (!tb[NL80211_ATTR_STA_INFO]) {
4318 wpa_printf(MSG_DEBUG, "sta stats missing!");
4321 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX,
4322 tb[NL80211_ATTR_STA_INFO],
4324 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!");
4328 if (stats[NL80211_STA_INFO_INACTIVE_TIME])
4329 data->inactive_msec =
4330 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]);
4331 if (stats[NL80211_STA_INFO_RX_BYTES])
4332 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]);
4333 if (stats[NL80211_STA_INFO_TX_BYTES])
4334 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]);
4335 if (stats[NL80211_STA_INFO_RX_PACKETS])
4337 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]);
4338 if (stats[NL80211_STA_INFO_TX_PACKETS])
4340 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]);
4345 static int i802_read_sta_data(void *priv, struct hostap_sta_driver_data *data,
4348 struct i802_bss *bss = priv;
4349 struct wpa_driver_nl80211_data *drv = bss->drv;
4352 os_memset(data, 0, sizeof(*data));
4353 msg = nlmsg_alloc();
4357 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4358 0, NL80211_CMD_GET_STATION, 0);
4360 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
4361 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
4363 return send_and_recv_msgs(drv, msg, get_sta_handler, data);
4369 static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
4370 int cw_min, int cw_max, int burst_time)
4372 struct i802_bss *bss = priv;
4373 struct wpa_driver_nl80211_data *drv = bss->drv;
4375 struct nlattr *txq, *params;
4377 msg = nlmsg_alloc();
4381 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4382 0, NL80211_CMD_SET_WIPHY, 0);
4384 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
4386 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS);
4388 goto nla_put_failure;
4390 /* We are only sending parameters for a single TXQ at a time */
4391 params = nla_nest_start(msg, 1);
4393 goto nla_put_failure;
4395 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, queue);
4396 /* Burst time is configured in units of 0.1 msec and TXOP parameter in
4397 * 32 usec, so need to convert the value here. */
4398 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32);
4399 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min);
4400 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max);
4401 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs);
4403 nla_nest_end(msg, params);
4405 nla_nest_end(msg, txq);
4407 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
4414 static int i802_set_bss(void *priv, int cts, int preamble, int slot)
4416 struct i802_bss *bss = priv;
4417 struct wpa_driver_nl80211_data *drv = bss->drv;
4420 msg = nlmsg_alloc();
4424 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
4425 NL80211_CMD_SET_BSS, 0);
4428 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts);
4430 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble);
4432 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot);
4434 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
4436 return send_and_recv_msgs(drv, msg, NULL, NULL);
4442 static int i802_set_cts_protect(void *priv, int value)
4444 return i802_set_bss(priv, value, -1, -1);
4448 static int i802_set_preamble(void *priv, int value)
4450 return i802_set_bss(priv, -1, value, -1);
4454 static int i802_set_short_slot_time(void *priv, int value)
4456 return i802_set_bss(priv, -1, -1, value);
4460 static int i802_set_sta_vlan(void *priv, const u8 *addr,
4461 const char *ifname, int vlan_id)
4463 struct i802_bss *bss = priv;
4464 struct wpa_driver_nl80211_data *drv = bss->drv;
4467 msg = nlmsg_alloc();
4471 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4472 0, NL80211_CMD_SET_STATION, 0);
4474 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
4475 if_nametoindex(bss->ifname));
4476 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
4477 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN,
4478 if_nametoindex(ifname));
4480 return send_and_recv_msgs(drv, msg, NULL, NULL);
4486 static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val)
4488 struct i802_bss *bss = priv;
4489 struct wpa_driver_nl80211_data *drv = bss->drv;
4490 char name[IFNAMSIZ + 1];
4492 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid);
4493 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR
4494 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name);
4496 if (nl80211_create_iface(drv, name, NL80211_IFTYPE_AP_VLAN,
4499 linux_set_iface_flags(drv->ioctl_sock, name, 1);
4500 return i802_set_sta_vlan(priv, addr, name, 0);
4502 i802_set_sta_vlan(priv, addr, bss->ifname, 0);
4503 return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN,
4509 static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
4511 struct wpa_driver_nl80211_data *drv = eloop_ctx;
4512 struct sockaddr_ll lladdr;
4513 unsigned char buf[3000];
4515 socklen_t fromlen = sizeof(lladdr);
4517 len = recvfrom(sock, buf, sizeof(buf), 0,
4518 (struct sockaddr *)&lladdr, &fromlen);
4524 if (have_ifidx(drv, lladdr.sll_ifindex))
4525 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len);
4529 static int i802_get_inact_sec(void *priv, const u8 *addr)
4531 struct hostap_sta_driver_data data;
4534 data.inactive_msec = (unsigned long) -1;
4535 ret = i802_read_sta_data(priv, &data, addr);
4536 if (ret || data.inactive_msec == (unsigned long) -1)
4538 return data.inactive_msec / 1000;
4542 static int i802_sta_clear_stats(void *priv, const u8 *addr)
4551 static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
4554 struct i802_bss *bss = priv;
4555 struct ieee80211_mgmt mgmt;
4557 memset(&mgmt, 0, sizeof(mgmt));
4558 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
4559 WLAN_FC_STYPE_DEAUTH);
4560 memcpy(mgmt.da, addr, ETH_ALEN);
4561 memcpy(mgmt.sa, own_addr, ETH_ALEN);
4562 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
4563 mgmt.u.deauth.reason_code = host_to_le16(reason);
4564 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
4566 sizeof(mgmt.u.deauth));
4570 static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
4573 struct i802_bss *bss = priv;
4574 struct ieee80211_mgmt mgmt;
4576 memset(&mgmt, 0, sizeof(mgmt));
4577 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
4578 WLAN_FC_STYPE_DISASSOC);
4579 memcpy(mgmt.da, addr, ETH_ALEN);
4580 memcpy(mgmt.sa, own_addr, ETH_ALEN);
4581 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
4582 mgmt.u.disassoc.reason_code = host_to_le16(reason);
4583 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
4585 sizeof(mgmt.u.disassoc));
4589 static int i802_check_bridge(struct wpa_driver_nl80211_data *drv,
4590 const char *brname, const char *ifname)
4593 char in_br[IFNAMSIZ];
4595 os_strlcpy(drv->brname, brname, IFNAMSIZ);
4596 ifindex = if_nametoindex(brname);
4599 * Bridge was configured, but the bridge device does
4600 * not exist. Try to add it now.
4602 if (linux_br_add(drv->ioctl_sock, brname) < 0) {
4603 wpa_printf(MSG_ERROR, "nl80211: Failed to add the "
4604 "bridge interface %s: %s",
4605 brname, strerror(errno));
4608 drv->added_bridge = 1;
4609 add_ifidx(drv, if_nametoindex(brname));
4612 if (linux_br_get(in_br, ifname) == 0) {
4613 if (os_strcmp(in_br, brname) == 0)
4614 return 0; /* already in the bridge */
4616 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from "
4617 "bridge %s", ifname, in_br);
4618 if (linux_br_del_if(drv->ioctl_sock, in_br, ifname) < 0) {
4619 wpa_printf(MSG_ERROR, "nl80211: Failed to "
4620 "remove interface %s from bridge "
4622 ifname, brname, strerror(errno));
4627 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s",
4629 if (linux_br_add_if(drv->ioctl_sock, brname, ifname) < 0) {
4630 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s "
4631 "into bridge %s: %s",
4632 ifname, brname, strerror(errno));
4635 drv->added_if_into_bridge = 1;
4641 static void *i802_init(struct hostapd_data *hapd,
4642 struct wpa_init_params *params)
4644 struct wpa_driver_nl80211_data *drv;
4645 struct i802_bss *bss;
4647 char brname[IFNAMSIZ];
4648 int ifindex, br_ifindex;
4651 bss = wpa_driver_nl80211_init(hapd, params->ifname);
4656 if (linux_br_get(brname, params->ifname) == 0) {
4657 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s",
4658 params->ifname, brname);
4659 br_ifindex = if_nametoindex(brname);
4665 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
4666 drv->if_indices = drv->default_if_indices;
4667 for (i = 0; i < params->num_bridge; i++) {
4668 if (params->bridge[i]) {
4669 ifindex = if_nametoindex(params->bridge[i]);
4671 add_ifidx(drv, ifindex);
4672 if (ifindex == br_ifindex)
4676 if (!br_added && br_ifindex &&
4677 (params->num_bridge == 0 || !params->bridge[0]))
4678 add_ifidx(drv, br_ifindex);
4680 /* start listening for EAPOL on the default AP interface */
4681 add_ifidx(drv, drv->ifindex);
4683 if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 0))
4686 if (params->bssid) {
4687 if (linux_set_ifhwaddr(drv->ioctl_sock, bss->ifname,
4692 if (wpa_driver_nl80211_set_mode(bss, IEEE80211_MODE_AP)) {
4693 wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s "
4694 "into AP mode", bss->ifname);
4698 if (params->num_bridge && params->bridge[0] &&
4699 i802_check_bridge(drv, params->bridge[0], params->ifname) < 0)
4702 if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 1))
4705 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE));
4706 if (drv->eapol_sock < 0) {
4707 perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)");
4711 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL))
4713 printf("Could not register read socket for eapol\n");
4717 if (linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, params->own_addr))
4723 nl80211_remove_monitor_interface(drv);
4724 if (drv->ioctl_sock >= 0)
4725 close(drv->ioctl_sock);
4727 genl_family_put(drv->nl80211);
4728 nl_cache_free(drv->nl_cache);
4729 nl_handle_destroy(drv->nl_handle);
4730 nl_cb_put(drv->nl_cb);
4737 static void i802_deinit(void *priv)
4739 wpa_driver_nl80211_deinit(priv);
4742 #endif /* HOSTAPD */
4745 static enum nl80211_iftype wpa_driver_nl80211_if_type(
4746 enum wpa_driver_if_type type)
4749 case WPA_IF_STATION:
4750 return NL80211_IFTYPE_STATION;
4751 case WPA_IF_AP_VLAN:
4752 return NL80211_IFTYPE_AP_VLAN;
4754 return NL80211_IFTYPE_AP;
4760 static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type,
4761 const char *ifname, const u8 *addr,
4762 void *bss_ctx, void **drv_priv,
4763 char *force_ifname, u8 *if_addr)
4765 struct i802_bss *bss = priv;
4766 struct wpa_driver_nl80211_data *drv = bss->drv;
4769 struct i802_bss *new_bss = NULL;
4771 if (type == WPA_IF_AP_BSS) {
4772 new_bss = os_zalloc(sizeof(*new_bss));
4773 if (new_bss == NULL)
4776 #endif /* HOSTAPD */
4779 os_memcpy(if_addr, addr, ETH_ALEN);
4780 ifidx = nl80211_create_iface(drv, ifname,
4781 wpa_driver_nl80211_if_type(type), addr,
4786 #endif /* HOSTAPD */
4791 linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, if_addr) < 0)
4795 if (type == WPA_IF_AP_BSS) {
4796 if (linux_set_iface_flags(drv->ioctl_sock, ifname, 1)) {
4797 nl80211_remove_iface(drv, ifidx);
4801 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ);
4802 new_bss->ifindex = ifidx;
4804 new_bss->next = drv->first_bss.next;
4805 drv->first_bss.next = new_bss;
4807 *drv_priv = new_bss;
4809 #endif /* HOSTAPD */
4815 static int wpa_driver_nl80211_if_remove(void *priv,
4816 enum wpa_driver_if_type type,
4819 struct i802_bss *bss = priv;
4820 struct wpa_driver_nl80211_data *drv = bss->drv;
4821 int ifindex = if_nametoindex(ifname);
4823 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d",
4824 __func__, type, ifname, ifindex);
4827 nl80211_remove_iface(drv, ifindex);
4830 if (type != WPA_IF_AP_BSS)
4833 if (bss != &drv->first_bss) {
4834 struct i802_bss *tbss = &drv->first_bss;
4837 if (tbss->next != bss)
4840 tbss->next = bss->next;
4845 #endif /* HOSTAPD */
4851 static int cookie_handler(struct nl_msg *msg, void *arg)
4853 struct nlattr *tb[NL80211_ATTR_MAX + 1];
4854 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
4856 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
4857 genlmsg_attrlen(gnlh, 0), NULL);
4858 if (tb[NL80211_ATTR_COOKIE])
4859 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
4864 static int wpa_driver_nl80211_send_action(void *priv, unsigned int freq,
4865 const u8 *dst, const u8 *src,
4867 const u8 *data, size_t data_len)
4869 struct i802_bss *bss = priv;
4870 struct wpa_driver_nl80211_data *drv = bss->drv;
4874 struct ieee80211_hdr *hdr;
4877 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d)",
4880 buf = os_zalloc(24 + data_len);
4883 os_memcpy(buf + 24, data, data_len);
4884 hdr = (struct ieee80211_hdr *) buf;
4885 hdr->frame_control =
4886 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION);
4887 os_memcpy(hdr->addr1, dst, ETH_ALEN);
4888 os_memcpy(hdr->addr2, src, ETH_ALEN);
4889 os_memcpy(hdr->addr3, bssid, ETH_ALEN);
4891 if (drv->nlmode == NL80211_IFTYPE_AP) {
4892 ret = wpa_driver_nl80211_send_mlme(priv, buf, 24 + data_len);
4897 msg = nlmsg_alloc();
4903 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
4904 NL80211_CMD_ACTION, 0);
4906 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4907 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
4908 NLA_PUT(msg, NL80211_ATTR_FRAME, 24 + data_len, buf);
4913 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
4916 wpa_printf(MSG_DEBUG, "nl80211: Action command failed: ret=%d "
4917 "(%s)", ret, strerror(-ret));
4918 goto nla_put_failure;
4920 wpa_printf(MSG_DEBUG, "nl80211: Action TX command accepted; "
4921 "cookie 0x%llx", (long long unsigned int) cookie);
4922 drv->send_action_cookie = cookie;
4923 drv->pending_send_action = 1;
4933 static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq,
4934 unsigned int duration)
4936 struct i802_bss *bss = priv;
4937 struct wpa_driver_nl80211_data *drv = bss->drv;
4942 msg = nlmsg_alloc();
4946 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
4947 NL80211_CMD_REMAIN_ON_CHANNEL, 0);
4949 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4950 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
4951 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
4954 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
4956 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie "
4957 "0x%llx for freq=%u MHz duration=%u",
4958 (long long unsigned int) cookie, freq, duration);
4959 drv->remain_on_chan_cookie = cookie;
4962 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel "
4963 "(freq=%d): %d (%s)", freq, ret, strerror(-ret));
4969 static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv)
4971 struct i802_bss *bss = priv;
4972 struct wpa_driver_nl80211_data *drv = bss->drv;
4976 if (!drv->pending_remain_on_chan) {
4977 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel "
4982 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie "
4984 (long long unsigned int) drv->remain_on_chan_cookie);
4986 msg = nlmsg_alloc();
4990 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
4991 NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, 0);
4993 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4994 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie);
4996 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4999 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: "
5000 "%d (%s)", ret, strerror(-ret));
5006 static void wpa_driver_nl80211_probe_req_report_timeout(void *eloop_ctx,
5009 struct wpa_driver_nl80211_data *drv = eloop_ctx;
5010 if (drv->monitor_ifidx < 0)
5011 return; /* monitor interface already removed */
5013 if (drv->nlmode != NL80211_IFTYPE_STATION)
5014 return; /* not in station mode anymore */
5016 if (drv->probe_req_report)
5017 return; /* reporting enabled */
5019 wpa_printf(MSG_DEBUG, "nl80211: Remove monitor interface due to no "
5020 "Probe Request reporting needed anymore");
5021 nl80211_remove_monitor_interface(drv);
5025 static int wpa_driver_nl80211_probe_req_report(void *priv, int report)
5027 struct i802_bss *bss = priv;
5028 struct wpa_driver_nl80211_data *drv = bss->drv;
5030 if (drv->nlmode != NL80211_IFTYPE_STATION) {
5031 wpa_printf(MSG_DEBUG, "nl80211: probe_req_report control only "
5032 "allowed in station mode (iftype=%d)",
5036 drv->probe_req_report = report;
5039 eloop_cancel_timeout(
5040 wpa_driver_nl80211_probe_req_report_timeout,
5042 if (drv->monitor_ifidx < 0 &&
5043 nl80211_create_monitor_interface(drv))
5047 * It takes a while to remove the monitor interface, so try to
5048 * avoid doing this if it is needed again shortly. Instead,
5049 * schedule the interface to be removed later if no need for it
5052 wpa_printf(MSG_DEBUG, "nl80211: Scheduling monitor interface "
5053 "to be removed after 10 seconds of no use");
5054 eloop_register_timeout(
5055 10, 0, wpa_driver_nl80211_probe_req_report_timeout,
5063 static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
5064 int ifindex, int disabled)
5067 struct nlattr *bands, *band;
5070 msg = nlmsg_alloc();
5074 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
5075 NL80211_CMD_SET_TX_BITRATE_MASK, 0);
5076 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
5078 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES);
5080 goto nla_put_failure;
5083 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything
5084 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS
5085 * rates. All 5 GHz rates are left enabled.
5087 band = nla_nest_start(msg, NL80211_BAND_2GHZ);
5089 goto nla_put_failure;
5090 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8,
5091 "\x0c\x12\x18\x24\x30\x48\x60\x6c");
5092 nla_nest_end(msg, band);
5094 nla_nest_end(msg, bands);
5096 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5099 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d "
5100 "(%s)", ret, strerror(-ret));
5111 static int wpa_driver_nl80211_disable_11b_rates(void *priv, int disabled)
5113 struct i802_bss *bss = priv;
5114 struct wpa_driver_nl80211_data *drv = bss->drv;
5115 drv->disable_11b_rates = disabled;
5116 return nl80211_disable_11b_rates(drv, drv->ifindex, disabled);
5120 static int wpa_driver_nl80211_deinit_ap(void *priv)
5122 struct i802_bss *bss = priv;
5123 struct wpa_driver_nl80211_data *drv = bss->drv;
5124 if (drv->nlmode != NL80211_IFTYPE_AP)
5126 wpa_driver_nl80211_del_beacon(drv);
5127 return wpa_driver_nl80211_set_mode(priv, IEEE80211_MODE_INFRA);
5131 static void wpa_driver_nl80211_resume(void *priv)
5133 struct i802_bss *bss = priv;
5134 struct wpa_driver_nl80211_data *drv = bss->drv;
5135 if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 1)) {
5136 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on "
5142 static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap,
5143 const u8 *ies, size_t ies_len)
5145 struct i802_bss *bss = priv;
5146 struct wpa_driver_nl80211_data *drv = bss->drv;
5150 u8 own_addr[ETH_ALEN];
5152 if (linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, own_addr) < 0)
5156 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action "
5157 "action %d", action);
5162 * Action frame payload:
5163 * Category[1] = 6 (Fast BSS Transition)
5164 * Action[1] = 1 (Fast BSS Transition Request)
5170 data_len = 2 + 2 * ETH_ALEN + ies_len;
5171 data = os_malloc(data_len);
5175 *pos++ = 0x06; /* FT Action category */
5177 os_memcpy(pos, own_addr, ETH_ALEN);
5179 os_memcpy(pos, target_ap, ETH_ALEN);
5181 os_memcpy(pos, ies, ies_len);
5183 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, drv->bssid,
5184 own_addr, drv->bssid,
5192 static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis)
5194 struct i802_bss *bss = priv;
5195 struct wpa_driver_nl80211_data *drv = bss->drv;
5196 struct nl_msg *msg, *cqm = NULL;
5198 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d "
5199 "hysteresis=%d", threshold, hysteresis);
5201 msg = nlmsg_alloc();
5205 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
5206 0, NL80211_CMD_SET_CQM, 0);
5208 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
5210 cqm = nlmsg_alloc();
5214 NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_THOLD, threshold);
5215 NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_HYST, hysteresis);
5216 nla_put_nested(msg, NL80211_ATTR_CQM, cqm);
5218 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
5230 static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len,
5233 struct i802_bss *bss = priv;
5234 struct wpa_driver_nl80211_data *drv = bss->drv;
5235 return wpa_driver_nl80211_send_frame(drv, data, data_len, encrypt);
5239 const struct wpa_driver_ops wpa_driver_nl80211_ops = {
5241 .desc = "Linux nl80211/cfg80211",
5242 .get_bssid = wpa_driver_nl80211_get_bssid,
5243 .get_ssid = wpa_driver_nl80211_get_ssid,
5244 .set_key = wpa_driver_nl80211_set_key,
5245 .scan2 = wpa_driver_nl80211_scan,
5246 .get_scan_results2 = wpa_driver_nl80211_get_scan_results,
5247 .deauthenticate = wpa_driver_nl80211_deauthenticate,
5248 .disassociate = wpa_driver_nl80211_disassociate,
5249 .authenticate = wpa_driver_nl80211_authenticate,
5250 .associate = wpa_driver_nl80211_associate,
5251 .init = wpa_driver_nl80211_init,
5252 .deinit = wpa_driver_nl80211_deinit,
5253 .get_capa = wpa_driver_nl80211_get_capa,
5254 .set_operstate = wpa_driver_nl80211_set_operstate,
5255 .set_supp_port = wpa_driver_nl80211_set_supp_port,
5256 .set_country = wpa_driver_nl80211_set_country,
5257 .set_beacon = wpa_driver_nl80211_set_beacon,
5258 .if_add = wpa_driver_nl80211_if_add,
5259 .if_remove = wpa_driver_nl80211_if_remove,
5260 .send_mlme = wpa_driver_nl80211_send_mlme,
5261 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data,
5262 .sta_add = wpa_driver_nl80211_sta_add,
5263 .sta_remove = wpa_driver_nl80211_sta_remove,
5264 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol,
5265 .sta_set_flags = wpa_driver_nl80211_sta_set_flags,
5267 .hapd_init = i802_init,
5268 .hapd_deinit = i802_deinit,
5269 .get_seqnum = i802_get_seqnum,
5270 .flush = i802_flush,
5271 .read_sta_data = i802_read_sta_data,
5272 .sta_deauth = i802_sta_deauth,
5273 .sta_disassoc = i802_sta_disassoc,
5274 .get_inact_sec = i802_get_inact_sec,
5275 .sta_clear_stats = i802_sta_clear_stats,
5276 .set_freq = i802_set_freq,
5277 .set_rts = i802_set_rts,
5278 .set_frag = i802_set_frag,
5279 .set_rate_sets = i802_set_rate_sets,
5280 .set_cts_protect = i802_set_cts_protect,
5281 .set_preamble = i802_set_preamble,
5282 .set_short_slot_time = i802_set_short_slot_time,
5283 .set_tx_queue_params = i802_set_tx_queue_params,
5284 .set_sta_vlan = i802_set_sta_vlan,
5285 .set_wds_sta = i802_set_wds_sta,
5286 #endif /* HOSTAPD */
5287 .send_action = wpa_driver_nl80211_send_action,
5288 .remain_on_channel = wpa_driver_nl80211_remain_on_channel,
5289 .cancel_remain_on_channel =
5290 wpa_driver_nl80211_cancel_remain_on_channel,
5291 .probe_req_report = wpa_driver_nl80211_probe_req_report,
5292 .disable_11b_rates = wpa_driver_nl80211_disable_11b_rates,
5293 .deinit_ap = wpa_driver_nl80211_deinit_ap,
5294 .resume = wpa_driver_nl80211_resume,
5295 .send_ft_action = nl80211_send_ft_action,
5296 .signal_monitor = nl80211_signal_monitor,
5297 .send_frame = nl80211_send_frame,