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;
1163 #endif /* HOSTAPD */
1166 static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv,
1171 /* Initialize generic netlink and nl80211 */
1173 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
1174 if (drv->nl_cb == NULL) {
1175 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
1180 drv->nl_handle = nl_handle_alloc_cb(drv->nl_cb);
1181 if (drv->nl_handle == NULL) {
1182 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
1187 drv->nl_handle_event = nl_handle_alloc_cb(drv->nl_cb);
1188 if (drv->nl_handle_event == NULL) {
1189 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
1190 "callbacks (event)");
1194 if (genl_connect(drv->nl_handle)) {
1195 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
1200 if (genl_connect(drv->nl_handle_event)) {
1201 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
1206 #ifdef CONFIG_LIBNL20
1207 if (genl_ctrl_alloc_cache(drv->nl_handle, &drv->nl_cache) < 0) {
1208 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1212 if (genl_ctrl_alloc_cache(drv->nl_handle_event, &drv->nl_cache_event) <
1214 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1215 "netlink cache (event)");
1218 #else /* CONFIG_LIBNL20 */
1219 drv->nl_cache = genl_ctrl_alloc_cache(drv->nl_handle);
1220 if (drv->nl_cache == NULL) {
1221 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1225 drv->nl_cache_event = genl_ctrl_alloc_cache(drv->nl_handle_event);
1226 if (drv->nl_cache_event == NULL) {
1227 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1228 "netlink cache (event)");
1231 #endif /* CONFIG_LIBNL20 */
1233 drv->nl80211 = genl_ctrl_search_by_name(drv->nl_cache, "nl80211");
1234 if (drv->nl80211 == NULL) {
1235 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not "
1240 ret = nl_get_multicast_id(drv, "nl80211", "scan");
1242 ret = nl_socket_add_membership(drv->nl_handle_event, ret);
1244 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
1245 "membership for scan events: %d (%s)",
1246 ret, strerror(-ret));
1250 ret = nl_get_multicast_id(drv, "nl80211", "mlme");
1252 ret = nl_socket_add_membership(drv->nl_handle_event, ret);
1254 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
1255 "membership for mlme events: %d (%s)",
1256 ret, strerror(-ret));
1260 eloop_register_read_sock(nl_socket_get_fd(drv->nl_handle_event),
1261 wpa_driver_nl80211_event_receive, drv, ctx);
1266 nl_cache_free(drv->nl_cache_event);
1268 nl_cache_free(drv->nl_cache);
1270 nl_handle_destroy(drv->nl_handle_event);
1272 nl_handle_destroy(drv->nl_handle);
1274 nl_cb_put(drv->nl_cb);
1281 * wpa_driver_nl80211_init - Initialize nl80211 driver interface
1282 * @ctx: context to be used when calling wpa_supplicant functions,
1283 * e.g., wpa_supplicant_event()
1284 * @ifname: interface name, e.g., wlan0
1285 * Returns: Pointer to private data, %NULL on failure
1287 static void * wpa_driver_nl80211_init(void *ctx, const char *ifname)
1289 struct wpa_driver_nl80211_data *drv;
1290 struct netlink_config *cfg;
1291 struct i802_bss *bss;
1293 drv = os_zalloc(sizeof(*drv));
1297 bss = &drv->first_bss;
1299 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname));
1300 drv->monitor_ifidx = -1;
1301 drv->monitor_sock = -1;
1302 drv->ioctl_sock = -1;
1304 if (wpa_driver_nl80211_init_nl(drv, ctx)) {
1309 drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
1310 if (drv->ioctl_sock < 0) {
1311 perror("socket(PF_INET,SOCK_DGRAM)");
1315 cfg = os_zalloc(sizeof(*cfg));
1319 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink;
1320 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink;
1321 drv->netlink = netlink_init(cfg);
1322 if (drv->netlink == NULL) {
1326 if (wpa_driver_nl80211_finish_drv_init(drv))
1332 netlink_deinit(drv->netlink);
1333 if (drv->ioctl_sock >= 0)
1334 close(drv->ioctl_sock);
1336 genl_family_put(drv->nl80211);
1337 nl_cache_free(drv->nl_cache);
1338 nl_handle_destroy(drv->nl_handle);
1339 nl_cb_put(drv->nl_cb);
1340 eloop_unregister_read_sock(nl_socket_get_fd(drv->nl_handle_event));
1347 static int nl80211_register_action_frame(struct wpa_driver_nl80211_data *drv,
1348 const u8 *match, size_t match_len)
1353 msg = nlmsg_alloc();
1357 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
1358 NL80211_CMD_REGISTER_ACTION, 0);
1360 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1361 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match);
1363 ret = send_and_recv(drv, drv->nl_handle_event, msg, NULL, NULL);
1366 wpa_printf(MSG_DEBUG, "nl80211: Register Action command "
1367 "failed: ret=%d (%s)", ret, strerror(-ret));
1368 wpa_hexdump(MSG_DEBUG, "nl80211: Register Action match",
1370 goto nla_put_failure;
1379 static int nl80211_register_action_frames(struct wpa_driver_nl80211_data *drv)
1382 /* Public Action frames */
1383 return nl80211_register_action_frame(drv, (u8 *) "\x04", 1);
1386 /* FT Action frames */
1387 if (nl80211_register_action_frame(drv, (u8 *) "\x06", 1) < 0)
1390 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT |
1391 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK;
1398 wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv)
1400 struct i802_bss *bss = &drv->first_bss;
1402 drv->ifindex = if_nametoindex(bss->ifname);
1403 drv->first_bss.ifindex = drv->ifindex;
1406 if (wpa_driver_nl80211_set_mode(bss, IEEE80211_MODE_INFRA) < 0) {
1407 wpa_printf(MSG_DEBUG, "nl80211: Could not configure driver to "
1408 "use managed mode");
1411 if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 1)) {
1412 wpa_printf(MSG_ERROR, "Could not set interface '%s' UP",
1417 if (wpa_driver_nl80211_capa(drv))
1420 netlink_send_oper_ifla(drv->netlink, drv->ifindex,
1421 1, IF_OPER_DORMANT);
1422 #endif /* HOSTAPD */
1424 if (nl80211_register_action_frames(drv) < 0) {
1425 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action "
1426 "frame processing - ignore for now");
1428 * Older kernel versions did not support this, so ignore the
1429 * error for now. Some functionality may not be available
1438 static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv)
1442 msg = nlmsg_alloc();
1446 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1447 0, NL80211_CMD_DEL_BEACON, 0);
1448 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1450 return send_and_recv_msgs(drv, msg, NULL, NULL);
1457 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface
1458 * @priv: Pointer to private nl80211 data from wpa_driver_nl80211_init()
1460 * Shut down driver interface and processing of driver events. Free
1461 * private data buffer if one was allocated in wpa_driver_nl80211_init().
1463 static void wpa_driver_nl80211_deinit(void *priv)
1465 struct i802_bss *bss = priv;
1466 struct wpa_driver_nl80211_data *drv = bss->drv;
1468 if (drv->added_if_into_bridge) {
1469 if (linux_br_del_if(drv->ioctl_sock, drv->brname, bss->ifname)
1471 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
1472 "interface %s from bridge %s: %s",
1473 bss->ifname, drv->brname, strerror(errno));
1475 if (drv->added_bridge) {
1476 if (linux_br_del(drv->ioctl_sock, drv->brname) < 0)
1477 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
1479 drv->brname, strerror(errno));
1482 nl80211_remove_monitor_interface(drv);
1484 if (drv->nlmode == NL80211_IFTYPE_AP)
1485 wpa_driver_nl80211_del_beacon(drv);
1488 if (drv->last_freq_ht) {
1489 /* Clear HT flags from the driver */
1490 struct hostapd_freq_params freq;
1491 os_memset(&freq, 0, sizeof(freq));
1492 freq.freq = drv->last_freq;
1493 i802_set_freq(priv, &freq);
1496 if (drv->eapol_sock >= 0) {
1497 eloop_unregister_read_sock(drv->eapol_sock);
1498 close(drv->eapol_sock);
1501 if (drv->if_indices != drv->default_if_indices)
1502 os_free(drv->if_indices);
1503 #endif /* HOSTAPD */
1505 if (drv->disable_11b_rates)
1506 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
1508 netlink_send_oper_ifla(drv->netlink, drv->ifindex, 0, IF_OPER_UP);
1509 netlink_deinit(drv->netlink);
1511 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
1513 (void) linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 0);
1514 wpa_driver_nl80211_set_mode(bss, IEEE80211_MODE_INFRA);
1516 if (drv->ioctl_sock >= 0)
1517 close(drv->ioctl_sock);
1519 eloop_unregister_read_sock(nl_socket_get_fd(drv->nl_handle_event));
1520 genl_family_put(drv->nl80211);
1521 nl_cache_free(drv->nl_cache);
1522 nl_cache_free(drv->nl_cache_event);
1523 nl_handle_destroy(drv->nl_handle);
1524 nl_handle_destroy(drv->nl_handle_event);
1525 nl_cb_put(drv->nl_cb);
1527 eloop_cancel_timeout(wpa_driver_nl80211_probe_req_report_timeout,
1530 os_free(drv->filter_ssids);
1537 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion
1538 * @eloop_ctx: Driver private data
1539 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init()
1541 * This function can be used as registered timeout when starting a scan to
1542 * generate a scan completed event if the driver does not report this.
1544 static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx)
1546 struct wpa_driver_nl80211_data *drv = eloop_ctx;
1547 if (drv->ap_scan_as_station) {
1548 wpa_driver_nl80211_set_mode(&drv->first_bss,
1550 drv->ap_scan_as_station = 0;
1552 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results");
1553 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL);
1558 * wpa_driver_nl80211_scan - Request the driver to initiate scan
1559 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
1560 * @params: Scan parameters
1561 * Returns: 0 on success, -1 on failure
1563 static int wpa_driver_nl80211_scan(void *priv,
1564 struct wpa_driver_scan_params *params)
1566 struct i802_bss *bss = priv;
1567 struct wpa_driver_nl80211_data *drv = bss->drv;
1568 int ret = 0, timeout;
1569 struct nl_msg *msg, *ssids, *freqs;
1572 msg = nlmsg_alloc();
1573 ssids = nlmsg_alloc();
1574 freqs = nlmsg_alloc();
1575 if (!msg || !ssids || !freqs) {
1582 os_free(drv->filter_ssids);
1583 drv->filter_ssids = params->filter_ssids;
1584 params->filter_ssids = NULL;
1585 drv->num_filter_ssids = params->num_filter_ssids;
1587 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
1588 NL80211_CMD_TRIGGER_SCAN, 0);
1590 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1592 for (i = 0; i < params->num_ssids; i++) {
1593 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID",
1594 params->ssids[i].ssid,
1595 params->ssids[i].ssid_len);
1596 NLA_PUT(ssids, i + 1, params->ssids[i].ssid_len,
1597 params->ssids[i].ssid);
1599 if (params->num_ssids)
1600 nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids);
1602 if (params->extra_ies) {
1603 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan extra IEs",
1604 params->extra_ies, params->extra_ies_len);
1605 NLA_PUT(msg, NL80211_ATTR_IE, params->extra_ies_len,
1609 if (params->freqs) {
1610 for (i = 0; params->freqs[i]; i++) {
1611 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u "
1612 "MHz", params->freqs[i]);
1613 NLA_PUT_U32(freqs, i + 1, params->freqs[i]);
1615 nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES, freqs);
1618 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
1621 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d "
1622 "(%s)", ret, strerror(-ret));
1624 if (drv->nlmode == NL80211_IFTYPE_AP) {
1626 * mac80211 does not allow scan requests in AP mode, so
1627 * try to do this in station mode.
1629 if (wpa_driver_nl80211_set_mode(bss,
1630 IEEE80211_MODE_INFRA))
1631 goto nla_put_failure;
1633 if (wpa_driver_nl80211_scan(drv, params)) {
1634 wpa_driver_nl80211_set_mode(bss,
1636 goto nla_put_failure;
1639 /* Restore AP mode when processing scan results */
1640 drv->ap_scan_as_station = 1;
1643 goto nla_put_failure;
1645 goto nla_put_failure;
1646 #endif /* HOSTAPD */
1649 /* Not all drivers generate "scan completed" wireless event, so try to
1650 * read results after a timeout. */
1652 if (drv->scan_complete_events) {
1654 * The driver seems to deliver events to notify when scan is
1655 * complete, so use longer timeout to avoid race conditions
1656 * with scanning and following association request.
1660 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d "
1661 "seconds", ret, timeout);
1662 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
1663 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout,
1674 static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie)
1676 const u8 *end, *pos;
1682 end = ies + ies_len;
1684 while (pos + 1 < end) {
1685 if (pos + 2 + pos[1] > end)
1696 static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv,
1697 const u8 *ie, size_t ie_len)
1702 if (drv->filter_ssids == NULL)
1705 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID);
1709 for (i = 0; i < drv->num_filter_ssids; i++) {
1710 if (ssid[1] == drv->filter_ssids[i].ssid_len &&
1711 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) ==
1720 struct nl80211_bss_info_arg {
1721 struct wpa_driver_nl80211_data *drv;
1722 struct wpa_scan_results *res;
1725 static int bss_info_handler(struct nl_msg *msg, void *arg)
1727 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1728 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1729 struct nlattr *bss[NL80211_BSS_MAX + 1];
1730 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
1731 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC },
1732 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 },
1733 [NL80211_BSS_TSF] = { .type = NLA_U64 },
1734 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 },
1735 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 },
1736 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC },
1737 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 },
1738 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 },
1739 [NL80211_BSS_STATUS] = { .type = NLA_U32 },
1740 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 },
1741 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC },
1743 struct nl80211_bss_info_arg *_arg = arg;
1744 struct wpa_scan_results *res = _arg->res;
1745 struct wpa_scan_res **tmp;
1746 struct wpa_scan_res *r;
1747 const u8 *ie, *beacon_ie;
1748 size_t ie_len, beacon_ie_len;
1751 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1752 genlmsg_attrlen(gnlh, 0), NULL);
1753 if (!tb[NL80211_ATTR_BSS])
1755 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS],
1758 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) {
1759 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
1760 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
1765 if (bss[NL80211_BSS_BEACON_IES]) {
1766 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]);
1767 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]);
1773 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie,
1774 ie ? ie_len : beacon_ie_len))
1777 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len);
1780 if (bss[NL80211_BSS_BSSID])
1781 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]),
1783 if (bss[NL80211_BSS_FREQUENCY])
1784 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
1785 if (bss[NL80211_BSS_BEACON_INTERVAL])
1786 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]);
1787 if (bss[NL80211_BSS_CAPABILITY])
1788 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]);
1789 r->flags |= WPA_SCAN_NOISE_INVALID;
1790 if (bss[NL80211_BSS_SIGNAL_MBM]) {
1791 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]);
1792 r->level /= 100; /* mBm to dBm */
1793 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID;
1794 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) {
1795 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]);
1796 r->flags |= WPA_SCAN_LEVEL_INVALID;
1798 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID;
1799 if (bss[NL80211_BSS_TSF])
1800 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]);
1801 if (bss[NL80211_BSS_SEEN_MS_AGO])
1802 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]);
1804 pos = (u8 *) (r + 1);
1806 os_memcpy(pos, ie, ie_len);
1809 r->beacon_ie_len = beacon_ie_len;
1811 os_memcpy(pos, beacon_ie, beacon_ie_len);
1813 if (bss[NL80211_BSS_STATUS]) {
1814 enum nl80211_bss_status status;
1815 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
1817 case NL80211_BSS_STATUS_AUTHENTICATED:
1818 r->flags |= WPA_SCAN_AUTHENTICATED;
1820 case NL80211_BSS_STATUS_ASSOCIATED:
1821 r->flags |= WPA_SCAN_ASSOCIATED;
1828 tmp = os_realloc(res->res,
1829 (res->num + 1) * sizeof(struct wpa_scan_res *));
1834 tmp[res->num++] = r;
1841 static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv,
1844 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
1845 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state "
1846 "mismatch (" MACSTR ")", MAC2STR(addr));
1847 wpa_driver_nl80211_mlme(drv, addr,
1848 NL80211_CMD_DEAUTHENTICATE,
1849 WLAN_REASON_PREV_AUTH_NOT_VALID, 1);
1854 static void wpa_driver_nl80211_check_bss_status(
1855 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res)
1859 for (i = 0; i < res->num; i++) {
1860 struct wpa_scan_res *r = res->res[i];
1861 if (r->flags & WPA_SCAN_AUTHENTICATED) {
1862 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
1863 "indicates BSS status with " MACSTR
1864 " as authenticated",
1866 if (drv->nlmode == NL80211_IFTYPE_STATION &&
1867 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 &&
1868 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) !=
1870 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID"
1871 " in local state (auth=" MACSTR
1872 " assoc=" MACSTR ")",
1873 MAC2STR(drv->auth_bssid),
1874 MAC2STR(drv->bssid));
1875 clear_state_mismatch(drv, r->bssid);
1879 if (r->flags & WPA_SCAN_ASSOCIATED) {
1880 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
1881 "indicate BSS status with " MACSTR
1884 if (drv->nlmode == NL80211_IFTYPE_STATION &&
1886 wpa_printf(MSG_DEBUG, "nl80211: Local state "
1887 "(not associated) does not match "
1889 clear_state_mismatch(drv, r->bssid);
1890 } else if (drv->nlmode == NL80211_IFTYPE_STATION &&
1891 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) !=
1893 wpa_printf(MSG_DEBUG, "nl80211: Local state "
1894 "(associated with " MACSTR ") does "
1895 "not match with BSS state",
1896 MAC2STR(drv->bssid));
1897 clear_state_mismatch(drv, r->bssid);
1898 clear_state_mismatch(drv, drv->bssid);
1905 static void wpa_scan_results_free(struct wpa_scan_results *res)
1912 for (i = 0; i < res->num; i++)
1913 os_free(res->res[i]);
1919 static struct wpa_scan_results *
1920 nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv)
1923 struct wpa_scan_results *res;
1925 struct nl80211_bss_info_arg arg;
1927 res = os_zalloc(sizeof(*res));
1930 msg = nlmsg_alloc();
1932 goto nla_put_failure;
1934 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, NLM_F_DUMP,
1935 NL80211_CMD_GET_SCAN, 0);
1936 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1940 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
1943 wpa_printf(MSG_DEBUG, "Received scan results (%lu BSSes)",
1944 (unsigned long) res->num);
1947 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
1948 "(%s)", ret, strerror(-ret));
1951 wpa_scan_results_free(res);
1957 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results
1958 * @priv: Pointer to private wext data from wpa_driver_nl80211_init()
1959 * Returns: Scan results on success, -1 on failure
1961 static struct wpa_scan_results *
1962 wpa_driver_nl80211_get_scan_results(void *priv)
1964 struct i802_bss *bss = priv;
1965 struct wpa_driver_nl80211_data *drv = bss->drv;
1966 struct wpa_scan_results *res;
1968 res = nl80211_get_scan_results(drv);
1970 wpa_driver_nl80211_check_bss_status(drv, res);
1975 static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv)
1977 struct wpa_scan_results *res;
1980 res = nl80211_get_scan_results(drv);
1982 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results");
1986 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump");
1987 for (i = 0; i < res->num; i++) {
1988 struct wpa_scan_res *r = res->res[i];
1989 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s",
1990 (int) i, (int) res->num, MAC2STR(r->bssid),
1991 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "",
1992 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : "");
1995 wpa_scan_results_free(res);
1999 static int wpa_driver_nl80211_set_key(const char *ifname, void *priv,
2000 enum wpa_alg alg, const u8 *addr,
2001 int key_idx, int set_tx,
2002 const u8 *seq, size_t seq_len,
2003 const u8 *key, size_t key_len)
2005 struct i802_bss *bss = priv;
2006 struct wpa_driver_nl80211_data *drv = bss->drv;
2007 int ifindex = if_nametoindex(ifname);
2011 wpa_printf(MSG_DEBUG, "%s: ifindex=%d alg=%d addr=%p key_idx=%d "
2012 "set_tx=%d seq_len=%lu key_len=%lu",
2013 __func__, ifindex, alg, addr, key_idx, set_tx,
2014 (unsigned long) seq_len, (unsigned long) key_len);
2016 msg = nlmsg_alloc();
2020 if (alg == WPA_ALG_NONE) {
2021 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2022 0, NL80211_CMD_DEL_KEY, 0);
2024 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2025 0, NL80211_CMD_NEW_KEY, 0);
2026 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key);
2030 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
2031 WLAN_CIPHER_SUITE_WEP40);
2033 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
2034 WLAN_CIPHER_SUITE_WEP104);
2037 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
2038 WLAN_CIPHER_SUITE_TKIP);
2041 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
2042 WLAN_CIPHER_SUITE_CCMP);
2045 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
2046 WLAN_CIPHER_SUITE_AES_CMAC);
2049 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
2050 "algorithm %d", __func__, alg);
2057 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq);
2059 if (addr && os_memcmp(addr, "\xff\xff\xff\xff\xff\xff", ETH_ALEN) != 0)
2061 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr));
2062 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
2064 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
2065 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
2067 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2068 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE)
2071 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)",
2072 ret, strerror(-ret));
2075 * If we failed or don't need to set the default TX key (below),
2078 if (ret || !set_tx || alg == WPA_ALG_NONE)
2080 #ifdef HOSTAPD /* FIX: is this needed? */
2083 #endif /* HOSTAPD */
2085 msg = nlmsg_alloc();
2089 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2090 0, NL80211_CMD_SET_KEY, 0);
2091 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
2092 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
2093 if (alg == WPA_ALG_IGTK)
2094 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT);
2096 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
2098 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2102 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; "
2103 "err=%d %s)", ret, strerror(-ret));
2111 static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg,
2112 int key_idx, int defkey,
2113 const u8 *seq, size_t seq_len,
2114 const u8 *key, size_t key_len)
2116 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY);
2120 if (defkey && alg == WPA_ALG_IGTK)
2121 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT);
2123 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
2125 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx);
2130 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
2131 WLAN_CIPHER_SUITE_WEP40);
2133 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
2134 WLAN_CIPHER_SUITE_WEP104);
2137 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP);
2140 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP);
2143 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
2144 WLAN_CIPHER_SUITE_AES_CMAC);
2147 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
2148 "algorithm %d", __func__, alg);
2153 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq);
2155 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key);
2157 nla_nest_end(msg, key_attr);
2165 static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params,
2169 struct nlattr *nl_keys, *nl_key;
2171 for (i = 0; i < 4; i++) {
2172 if (!params->wep_key[i])
2180 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
2182 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS);
2184 goto nla_put_failure;
2186 for (i = 0; i < 4; i++) {
2187 if (!params->wep_key[i])
2190 nl_key = nla_nest_start(msg, i);
2192 goto nla_put_failure;
2194 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i],
2195 params->wep_key[i]);
2196 if (params->wep_key_len[i] == 5)
2197 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
2198 WLAN_CIPHER_SUITE_WEP40);
2200 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
2201 WLAN_CIPHER_SUITE_WEP104);
2203 NLA_PUT_U8(msg, NL80211_KEY_IDX, i);
2205 if (i == params->wep_tx_keyidx)
2206 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
2208 nla_nest_end(msg, nl_key);
2210 nla_nest_end(msg, nl_keys);
2219 static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
2220 const u8 *addr, int cmd, u16 reason_code,
2221 int local_state_change)
2226 msg = nlmsg_alloc();
2230 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0, cmd, 0);
2232 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2233 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code);
2234 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
2235 if (local_state_change)
2236 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
2238 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2241 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
2242 "(%s)", ret, strerror(-ret));
2243 goto nla_put_failure;
2253 static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv,
2254 const u8 *addr, int reason_code)
2256 wpa_printf(MSG_DEBUG, "%s", __func__);
2257 drv->associated = 0;
2258 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISCONNECT,
2263 static int wpa_driver_nl80211_deauthenticate(void *priv, const u8 *addr,
2266 struct i802_bss *bss = priv;
2267 struct wpa_driver_nl80211_data *drv = bss->drv;
2268 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
2269 return wpa_driver_nl80211_disconnect(drv, addr, reason_code);
2270 wpa_printf(MSG_DEBUG, "%s", __func__);
2271 drv->associated = 0;
2272 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE,
2277 static int wpa_driver_nl80211_disassociate(void *priv, const u8 *addr,
2280 struct i802_bss *bss = priv;
2281 struct wpa_driver_nl80211_data *drv = bss->drv;
2282 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
2283 return wpa_driver_nl80211_disconnect(drv, addr, reason_code);
2284 wpa_printf(MSG_DEBUG, "%s", __func__);
2285 drv->associated = 0;
2286 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISASSOCIATE,
2291 static int wpa_driver_nl80211_authenticate(
2292 void *priv, struct wpa_driver_auth_params *params)
2294 struct i802_bss *bss = priv;
2295 struct wpa_driver_nl80211_data *drv = bss->drv;
2298 enum nl80211_auth_type type;
2301 drv->associated = 0;
2302 os_memset(drv->auth_bssid, 0, ETH_ALEN);
2303 /* FIX: IBSS mode */
2304 if (drv->nlmode != NL80211_IFTYPE_STATION)
2305 wpa_driver_nl80211_set_mode(priv, IEEE80211_MODE_INFRA);
2307 if (wpa_driver_nl80211_set_mode(priv, IEEE80211_MODE_INFRA) < 0)
2311 msg = nlmsg_alloc();
2315 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)",
2318 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
2319 NL80211_CMD_AUTHENTICATE, 0);
2321 for (i = 0; i < 4; i++) {
2322 if (!params->wep_key[i])
2324 wpa_driver_nl80211_set_key(bss->ifname, priv, WPA_ALG_WEP,
2326 i == params->wep_tx_keyidx, NULL, 0,
2328 params->wep_key_len[i]);
2329 if (params->wep_tx_keyidx != i)
2331 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0,
2332 params->wep_key[i], params->wep_key_len[i])) {
2338 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2339 if (params->bssid) {
2340 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
2341 MAC2STR(params->bssid));
2342 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
2345 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
2346 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
2349 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
2350 params->ssid, params->ssid_len);
2351 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
2354 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len);
2356 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie);
2358 * TODO: if multiple auth_alg options enabled, try them one by one if
2359 * the AP rejects authentication due to unknown auth alg
2361 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
2362 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2363 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
2364 type = NL80211_AUTHTYPE_SHARED_KEY;
2365 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
2366 type = NL80211_AUTHTYPE_NETWORK_EAP;
2367 else if (params->auth_alg & WPA_AUTH_ALG_FT)
2368 type = NL80211_AUTHTYPE_FT;
2370 goto nla_put_failure;
2371 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
2372 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
2373 if (params->local_state_change) {
2374 wpa_printf(MSG_DEBUG, " * Local state change only");
2375 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
2378 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2381 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
2382 "(%s)", ret, strerror(-ret));
2384 if (ret == -EALREADY && count == 1 && params->bssid &&
2385 !params->local_state_change) {
2387 * mac80211 does not currently accept new
2388 * authentication if we are already authenticated. As a
2389 * workaround, force deauthentication and try again.
2391 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication "
2392 "after forced deauthentication");
2393 wpa_driver_nl80211_deauthenticate(
2395 WLAN_REASON_PREV_AUTH_NOT_VALID);
2399 goto nla_put_failure;
2402 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send "
2411 struct phy_info_arg {
2413 struct hostapd_hw_modes *modes;
2416 static int phy_info_handler(struct nl_msg *msg, void *arg)
2418 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
2419 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2420 struct phy_info_arg *phy_info = arg;
2422 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
2424 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
2425 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
2426 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
2427 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
2428 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG },
2429 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG },
2430 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
2431 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
2434 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
2435 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
2436 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
2437 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = { .type = NLA_FLAG },
2440 struct nlattr *nl_band;
2441 struct nlattr *nl_freq;
2442 struct nlattr *nl_rate;
2443 int rem_band, rem_freq, rem_rate;
2444 struct hostapd_hw_modes *mode;
2445 int idx, mode_is_set;
2447 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2448 genlmsg_attrlen(gnlh, 0), NULL);
2450 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
2453 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) {
2454 mode = os_realloc(phy_info->modes, (*phy_info->num_modes + 1) * sizeof(*mode));
2457 phy_info->modes = mode;
2461 mode = &phy_info->modes[*(phy_info->num_modes)];
2462 memset(mode, 0, sizeof(*mode));
2463 *(phy_info->num_modes) += 1;
2465 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
2466 nla_len(nl_band), NULL);
2468 if (tb_band[NL80211_BAND_ATTR_HT_CAPA]) {
2469 mode->ht_capab = nla_get_u16(
2470 tb_band[NL80211_BAND_ATTR_HT_CAPA]);
2473 if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) {
2474 mode->a_mpdu_params |= nla_get_u8(
2475 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) &
2479 if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) {
2480 mode->a_mpdu_params |= nla_get_u8(
2481 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) <<
2485 if (tb_band[NL80211_BAND_ATTR_HT_MCS_SET] &&
2486 nla_len(tb_band[NL80211_BAND_ATTR_HT_MCS_SET])) {
2488 mcs = nla_data(tb_band[NL80211_BAND_ATTR_HT_MCS_SET]);
2489 os_memcpy(mode->mcs_set, mcs, 16);
2492 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
2493 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
2494 nla_len(nl_freq), freq_policy);
2495 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
2497 mode->num_channels++;
2500 mode->channels = os_zalloc(mode->num_channels * sizeof(struct hostapd_channel_data));
2501 if (!mode->channels)
2506 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
2507 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
2508 nla_len(nl_freq), freq_policy);
2509 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
2512 mode->channels[idx].freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
2513 mode->channels[idx].flag = 0;
2516 /* crude heuristic */
2517 if (mode->channels[idx].freq < 4000)
2518 mode->mode = HOSTAPD_MODE_IEEE80211B;
2520 mode->mode = HOSTAPD_MODE_IEEE80211A;
2524 /* crude heuristic */
2525 if (mode->channels[idx].freq < 4000)
2526 if (mode->channels[idx].freq == 2484)
2527 mode->channels[idx].chan = 14;
2529 mode->channels[idx].chan = (mode->channels[idx].freq - 2407) / 5;
2531 mode->channels[idx].chan = mode->channels[idx].freq/5 - 1000;
2533 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
2534 mode->channels[idx].flag |=
2535 HOSTAPD_CHAN_DISABLED;
2536 if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
2537 mode->channels[idx].flag |=
2538 HOSTAPD_CHAN_PASSIVE_SCAN;
2539 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS])
2540 mode->channels[idx].flag |=
2541 HOSTAPD_CHAN_NO_IBSS;
2542 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
2543 mode->channels[idx].flag |=
2546 if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] &&
2547 !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
2548 mode->channels[idx].max_tx_power =
2549 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100;
2554 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
2555 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
2556 nla_len(nl_rate), rate_policy);
2557 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
2562 mode->rates = os_zalloc(mode->num_rates * sizeof(int));
2568 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
2569 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
2570 nla_len(nl_rate), rate_policy);
2571 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
2573 mode->rates[idx] = nla_get_u32(tb_rate[NL80211_BITRATE_ATTR_RATE]);
2575 /* crude heuristic */
2576 if (mode->mode == HOSTAPD_MODE_IEEE80211B &&
2577 mode->rates[idx] > 200)
2578 mode->mode = HOSTAPD_MODE_IEEE80211G;
2587 static struct hostapd_hw_modes *
2588 wpa_driver_nl80211_add_11b(struct hostapd_hw_modes *modes, u16 *num_modes)
2591 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
2592 int i, mode11g_idx = -1;
2594 /* If only 802.11g mode is included, use it to construct matching
2595 * 802.11b mode data. */
2597 for (m = 0; m < *num_modes; m++) {
2598 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
2599 return modes; /* 802.11b already included */
2600 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
2604 if (mode11g_idx < 0)
2605 return modes; /* 2.4 GHz band not supported at all */
2607 nmodes = os_realloc(modes, (*num_modes + 1) * sizeof(*nmodes));
2609 return modes; /* Could not add 802.11b mode */
2611 mode = &nmodes[*num_modes];
2612 os_memset(mode, 0, sizeof(*mode));
2616 mode->mode = HOSTAPD_MODE_IEEE80211B;
2618 mode11g = &modes[mode11g_idx];
2619 mode->num_channels = mode11g->num_channels;
2620 mode->channels = os_malloc(mode11g->num_channels *
2621 sizeof(struct hostapd_channel_data));
2622 if (mode->channels == NULL) {
2624 return modes; /* Could not add 802.11b mode */
2626 os_memcpy(mode->channels, mode11g->channels,
2627 mode11g->num_channels * sizeof(struct hostapd_channel_data));
2629 mode->num_rates = 0;
2630 mode->rates = os_malloc(4 * sizeof(int));
2631 if (mode->rates == NULL) {
2632 os_free(mode->channels);
2634 return modes; /* Could not add 802.11b mode */
2637 for (i = 0; i < mode11g->num_rates; i++) {
2638 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 &&
2639 mode11g->rates[i] != 55 && mode11g->rates[i] != 110)
2641 mode->rates[mode->num_rates] = mode11g->rates[i];
2643 if (mode->num_rates == 4)
2647 if (mode->num_rates == 0) {
2648 os_free(mode->channels);
2649 os_free(mode->rates);
2651 return modes; /* No 802.11b rates */
2654 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
2661 static struct hostapd_hw_modes *
2662 wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
2664 struct i802_bss *bss = priv;
2665 struct wpa_driver_nl80211_data *drv = bss->drv;
2667 struct phy_info_arg result = {
2668 .num_modes = num_modes,
2675 msg = nlmsg_alloc();
2679 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2680 0, NL80211_CMD_GET_WIPHY, 0);
2682 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2684 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0)
2685 return wpa_driver_nl80211_add_11b(result.modes, num_modes);
2691 static int wpa_driver_nl80211_send_frame(struct wpa_driver_nl80211_data *drv,
2692 const void *data, size_t len,
2696 0x00, 0x00, /* radiotap version */
2697 0x0e, 0x00, /* radiotap length */
2698 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */
2699 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */
2701 0x00, 0x00, /* RX and TX flags to indicate that */
2702 0x00, 0x00, /* this is the injected frame directly */
2704 struct iovec iov[2] = {
2706 .iov_base = &rtap_hdr,
2707 .iov_len = sizeof(rtap_hdr),
2710 .iov_base = (void *) data,
2714 struct msghdr msg = {
2719 .msg_control = NULL,
2720 .msg_controllen = 0,
2725 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP;
2727 return sendmsg(drv->monitor_sock, &msg, 0);
2731 static int wpa_driver_nl80211_send_mlme(void *priv, const u8 *data,
2734 struct i802_bss *bss = priv;
2735 struct wpa_driver_nl80211_data *drv = bss->drv;
2736 struct ieee80211_mgmt *mgmt;
2740 mgmt = (struct ieee80211_mgmt *) data;
2741 fc = le_to_host16(mgmt->frame_control);
2743 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
2744 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) {
2746 * Only one of the authentication frame types is encrypted.
2747 * In order for static WEP encryption to work properly (i.e.,
2748 * to not encrypt the frame), we need to tell mac80211 about
2749 * the frames that must not be encrypted.
2751 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
2752 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction);
2753 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3)
2757 return wpa_driver_nl80211_send_frame(drv, data, data_len, encrypt);
2761 static int wpa_driver_nl80211_set_beacon(void *priv,
2762 const u8 *head, size_t head_len,
2763 const u8 *tail, size_t tail_len,
2764 int dtim_period, int beacon_int)
2766 struct i802_bss *bss = priv;
2767 struct wpa_driver_nl80211_data *drv = bss->drv;
2769 u8 cmd = NL80211_CMD_NEW_BEACON;
2772 int ifindex = if_nametoindex(bss->ifname);
2774 beacon_set = bss->beacon_set;
2776 msg = nlmsg_alloc();
2780 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)",
2783 cmd = NL80211_CMD_SET_BEACON;
2785 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2787 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, head_len, head);
2788 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, tail_len, tail);
2789 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
2790 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, beacon_int);
2791 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, dtim_period);
2793 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2795 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)",
2796 ret, strerror(-ret));
2798 bss->beacon_set = 1;
2806 static int wpa_driver_nl80211_set_freq(struct wpa_driver_nl80211_data *drv,
2807 int freq, int ht_enabled,
2808 int sec_channel_offset)
2813 msg = nlmsg_alloc();
2817 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
2818 NL80211_CMD_SET_WIPHY, 0);
2820 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2821 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
2823 switch (sec_channel_offset) {
2825 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2826 NL80211_CHAN_HT40MINUS);
2829 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2830 NL80211_CHAN_HT40PLUS);
2833 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2839 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2842 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): "
2843 "%d (%s)", freq, ret, strerror(-ret));
2849 static int wpa_driver_nl80211_sta_add(void *priv,
2850 struct hostapd_sta_add_params *params)
2852 struct i802_bss *bss = priv;
2853 struct wpa_driver_nl80211_data *drv = bss->drv;
2857 msg = nlmsg_alloc();
2861 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2862 0, NL80211_CMD_NEW_STATION, 0);
2864 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
2865 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr);
2866 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid);
2867 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len,
2868 params->supp_rates);
2869 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL,
2870 params->listen_interval);
2871 if (params->ht_capabilities) {
2872 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY,
2873 sizeof(*params->ht_capabilities),
2874 params->ht_capabilities);
2877 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2879 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_NEW_STATION "
2880 "result: %d (%s)", ret, strerror(-ret));
2888 static int wpa_driver_nl80211_sta_remove(void *priv, const u8 *addr)
2890 struct i802_bss *bss = priv;
2891 struct wpa_driver_nl80211_data *drv = bss->drv;
2895 msg = nlmsg_alloc();
2899 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2900 0, NL80211_CMD_DEL_STATION, 0);
2902 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
2903 if_nametoindex(bss->ifname));
2904 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
2906 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2915 static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
2920 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx);
2923 /* stop listening for EAPOL on this interface */
2924 del_ifidx(drv, ifidx);
2925 #endif /* HOSTAPD */
2927 msg = nlmsg_alloc();
2929 goto nla_put_failure;
2931 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2932 0, NL80211_CMD_DEL_INTERFACE, 0);
2933 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx);
2935 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
2938 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx);
2942 static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv,
2944 enum nl80211_iftype iftype,
2945 const u8 *addr, int wds)
2947 struct nl_msg *msg, *flags = NULL;
2951 msg = nlmsg_alloc();
2955 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2956 0, NL80211_CMD_NEW_INTERFACE, 0);
2957 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2958 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname);
2959 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype);
2961 if (iftype == NL80211_IFTYPE_MONITOR) {
2964 flags = nlmsg_alloc();
2966 goto nla_put_failure;
2968 NLA_PUT_FLAG(flags, NL80211_MNTR_FLAG_COOK_FRAMES);
2970 err = nla_put_nested(msg, NL80211_ATTR_MNTR_FLAGS, flags);
2975 goto nla_put_failure;
2977 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds);
2980 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2983 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)",
2984 ifname, ret, strerror(-ret));
2988 ifidx = if_nametoindex(ifname);
2989 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d",
2996 /* start listening for EAPOL on this interface */
2997 add_ifidx(drv, ifidx);
2998 #endif /* HOSTAPD */
3000 if (addr && iftype != NL80211_IFTYPE_MONITOR &&
3001 linux_set_ifhwaddr(drv->ioctl_sock, ifname, addr)) {
3002 nl80211_remove_iface(drv, ifidx);
3010 static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
3011 const char *ifname, enum nl80211_iftype iftype,
3012 const u8 *addr, int wds)
3016 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds);
3018 /* if error occured and interface exists already */
3019 if (ret == -ENFILE && if_nametoindex(ifname)) {
3020 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname);
3022 /* Try to remove the interface that was already there. */
3023 nl80211_remove_iface(drv, if_nametoindex(ifname));
3025 /* Try to create the interface again */
3026 ret = nl80211_create_iface_once(drv, ifname, iftype, addr,
3030 if (ret >= 0 && drv->disable_11b_rates)
3031 nl80211_disable_11b_rates(drv, ret, 1);
3037 static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok)
3039 struct ieee80211_hdr *hdr;
3041 union wpa_event_data event;
3043 hdr = (struct ieee80211_hdr *) buf;
3044 fc = le_to_host16(hdr->frame_control);
3046 os_memset(&event, 0, sizeof(event));
3047 event.tx_status.type = WLAN_FC_GET_TYPE(fc);
3048 event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
3049 event.tx_status.dst = hdr->addr1;
3050 event.tx_status.data = buf;
3051 event.tx_status.data_len = len;
3052 event.tx_status.ack = ok;
3053 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event);
3057 static void from_unknown_sta(struct wpa_driver_nl80211_data *drv,
3058 u8 *buf, size_t len)
3060 union wpa_event_data event;
3061 os_memset(&event, 0, sizeof(event));
3062 event.rx_from_unknown.frame = buf;
3063 event.rx_from_unknown.len = len;
3064 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event);
3068 static void handle_frame(struct wpa_driver_nl80211_data *drv,
3069 u8 *buf, size_t len, int datarate, int ssi_signal)
3071 struct ieee80211_hdr *hdr;
3073 union wpa_event_data event;
3075 hdr = (struct ieee80211_hdr *) buf;
3076 fc = le_to_host16(hdr->frame_control);
3078 switch (WLAN_FC_GET_TYPE(fc)) {
3079 case WLAN_FC_TYPE_MGMT:
3080 os_memset(&event, 0, sizeof(event));
3081 event.rx_mgmt.frame = buf;
3082 event.rx_mgmt.frame_len = len;
3083 event.rx_mgmt.datarate = datarate;
3084 event.rx_mgmt.ssi_signal = ssi_signal;
3085 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
3087 case WLAN_FC_TYPE_CTRL:
3088 /* can only get here with PS-Poll frames */
3089 wpa_printf(MSG_DEBUG, "CTRL");
3090 from_unknown_sta(drv, buf, len);
3092 case WLAN_FC_TYPE_DATA:
3093 from_unknown_sta(drv, buf, len);
3099 static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx)
3101 struct wpa_driver_nl80211_data *drv = eloop_ctx;
3103 unsigned char buf[3000];
3104 struct ieee80211_radiotap_iterator iter;
3106 int datarate = 0, ssi_signal = 0;
3107 int injected = 0, failed = 0, rxflags = 0;
3109 len = recv(sock, buf, sizeof(buf), 0);
3115 if (drv->nlmode == NL80211_IFTYPE_STATION && !drv->probe_req_report) {
3116 wpa_printf(MSG_DEBUG, "nl80211: Ignore monitor interface "
3117 "frame since Probe Request reporting is disabled");
3121 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) {
3122 printf("received invalid radiotap frame\n");
3127 ret = ieee80211_radiotap_iterator_next(&iter);
3131 printf("received invalid radiotap frame (%d)\n", ret);
3134 switch (iter.this_arg_index) {
3135 case IEEE80211_RADIOTAP_FLAGS:
3136 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS)
3139 case IEEE80211_RADIOTAP_RX_FLAGS:
3142 case IEEE80211_RADIOTAP_TX_FLAGS:
3144 failed = le_to_host16((*(uint16_t *) iter.this_arg)) &
3145 IEEE80211_RADIOTAP_F_TX_FAIL;
3147 case IEEE80211_RADIOTAP_DATA_RETRIES:
3149 case IEEE80211_RADIOTAP_CHANNEL:
3150 /* TODO: convert from freq/flags to channel number */
3152 case IEEE80211_RADIOTAP_RATE:
3153 datarate = *iter.this_arg * 5;
3155 case IEEE80211_RADIOTAP_DB_ANTSIGNAL:
3156 ssi_signal = *iter.this_arg;
3161 if (rxflags && injected)
3165 handle_frame(drv, buf + iter.max_length,
3166 len - iter.max_length, datarate, ssi_signal);
3168 handle_tx_callback(drv->ctx, buf + iter.max_length,
3169 len - iter.max_length, !failed);
3174 * we post-process the filter code later and rewrite
3175 * this to the offset to the last instruction
3180 static struct sock_filter msock_filter_insns[] = {
3182 * do a little-endian load of the radiotap length field
3184 /* load lower byte into A */
3185 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2),
3186 /* put it into X (== index register) */
3187 BPF_STMT(BPF_MISC| BPF_TAX, 0),
3188 /* load upper byte into A */
3189 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3),
3190 /* left-shift it by 8 */
3191 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8),
3193 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0),
3194 /* put result into X */
3195 BPF_STMT(BPF_MISC| BPF_TAX, 0),
3198 * Allow management frames through, this also gives us those
3199 * management frames that we sent ourselves with status
3201 /* load the lower byte of the IEEE 802.11 frame control field */
3202 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
3203 /* mask off frame type and version */
3204 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF),
3205 /* accept frame if it's both 0, fall through otherwise */
3206 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0),
3209 * TODO: add a bit to radiotap RX flags that indicates
3210 * that the sending station is not associated, then
3211 * add a filter here that filters on our DA and that flag
3212 * to allow us to deauth frames to that bad station.
3214 * Not a regression -- we didn't do it before either.
3219 * drop non-data frames
3221 /* load the lower byte of the frame control field */
3222 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
3223 /* mask off QoS bit */
3224 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c),
3225 /* drop non-data frames */
3226 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL),
3228 /* load the upper byte of the frame control field */
3229 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1),
3230 /* mask off toDS/fromDS */
3231 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03),
3232 /* accept WDS frames */
3233 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0),
3236 * add header length to index
3238 /* load the lower byte of the frame control field */
3239 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
3240 /* mask off QoS bit */
3241 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80),
3242 /* right shift it by 6 to give 0 or 2 */
3243 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6),
3244 /* add data frame header length */
3245 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24),
3246 /* add index, was start of 802.11 header */
3247 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0),
3248 /* move to index, now start of LL header */
3249 BPF_STMT(BPF_MISC | BPF_TAX, 0),
3252 * Accept empty data frames, we use those for
3255 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0),
3256 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0),
3259 * Accept EAPOL frames
3261 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0),
3262 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL),
3263 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4),
3264 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL),
3266 /* keep these last two statements or change the code below */
3267 /* return 0 == "DROP" */
3268 BPF_STMT(BPF_RET | BPF_K, 0),
3269 /* return ~0 == "keep all" */
3270 BPF_STMT(BPF_RET | BPF_K, ~0),
3273 static struct sock_fprog msock_filter = {
3274 .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]),
3275 .filter = msock_filter_insns,
3279 static int add_monitor_filter(int s)
3283 /* rewrite all PASS/FAIL jump offsets */
3284 for (idx = 0; idx < msock_filter.len; idx++) {
3285 struct sock_filter *insn = &msock_filter_insns[idx];
3287 if (BPF_CLASS(insn->code) == BPF_JMP) {
3288 if (insn->code == (BPF_JMP|BPF_JA)) {
3289 if (insn->k == PASS)
3290 insn->k = msock_filter.len - idx - 2;
3291 else if (insn->k == FAIL)
3292 insn->k = msock_filter.len - idx - 3;
3295 if (insn->jt == PASS)
3296 insn->jt = msock_filter.len - idx - 2;
3297 else if (insn->jt == FAIL)
3298 insn->jt = msock_filter.len - idx - 3;
3300 if (insn->jf == PASS)
3301 insn->jf = msock_filter.len - idx - 2;
3302 else if (insn->jf == FAIL)
3303 insn->jf = msock_filter.len - idx - 3;
3307 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER,
3308 &msock_filter, sizeof(msock_filter))) {
3309 perror("SO_ATTACH_FILTER");
3317 static void nl80211_remove_monitor_interface(
3318 struct wpa_driver_nl80211_data *drv)
3320 if (drv->monitor_ifidx >= 0) {
3321 nl80211_remove_iface(drv, drv->monitor_ifidx);
3322 drv->monitor_ifidx = -1;
3324 if (drv->monitor_sock >= 0) {
3325 eloop_unregister_read_sock(drv->monitor_sock);
3326 close(drv->monitor_sock);
3327 drv->monitor_sock = -1;
3333 nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv)
3336 struct sockaddr_ll ll;
3340 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss.ifname);
3341 buf[IFNAMSIZ - 1] = '\0';
3343 drv->monitor_ifidx =
3344 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL,
3347 if (drv->monitor_ifidx < 0)
3350 if (linux_set_iface_flags(drv->ioctl_sock, buf, 1))
3353 memset(&ll, 0, sizeof(ll));
3354 ll.sll_family = AF_PACKET;
3355 ll.sll_ifindex = drv->monitor_ifidx;
3356 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
3357 if (drv->monitor_sock < 0) {
3358 perror("socket[PF_PACKET,SOCK_RAW]");
3362 if (add_monitor_filter(drv->monitor_sock)) {
3363 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor "
3364 "interface; do filtering in user space");
3365 /* This works, but will cost in performance. */
3368 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) {
3369 perror("monitor socket bind");
3373 optlen = sizeof(optval);
3376 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) {
3377 perror("Failed to set socket priority");
3381 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read,
3383 printf("Could not register monitor read socket\n");
3389 nl80211_remove_monitor_interface(drv);
3394 static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
3396 static int wpa_driver_nl80211_hapd_send_eapol(
3397 void *priv, const u8 *addr, const u8 *data,
3398 size_t data_len, int encrypt, const u8 *own_addr)
3400 struct i802_bss *bss = priv;
3401 struct wpa_driver_nl80211_data *drv = bss->drv;
3402 struct ieee80211_hdr *hdr;
3407 int qos = sta->flags & WPA_STA_WMM;
3412 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 +
3414 hdr = os_zalloc(len);
3416 printf("malloc() failed for i802_send_data(len=%lu)\n",
3417 (unsigned long) len);
3421 hdr->frame_control =
3422 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA);
3423 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS);
3425 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP);
3426 #if 0 /* To be enabled if qos determination is added above */
3428 hdr->frame_control |=
3429 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4);
3433 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN);
3434 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
3435 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
3436 pos = (u8 *) (hdr + 1);
3438 #if 0 /* To be enabled if qos determination is added above */
3440 /* add an empty QoS header if needed */
3447 memcpy(pos, rfc1042_header, sizeof(rfc1042_header));
3448 pos += sizeof(rfc1042_header);
3449 WPA_PUT_BE16(pos, ETH_P_PAE);
3451 memcpy(pos, data, data_len);
3453 res = wpa_driver_nl80211_send_frame(drv, (u8 *) hdr, len, encrypt);
3455 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - "
3457 (unsigned long) len, errno, strerror(errno));
3465 static u32 sta_flags_nl80211(int flags)
3469 if (flags & WPA_STA_AUTHORIZED)
3470 f |= BIT(NL80211_STA_FLAG_AUTHORIZED);
3471 if (flags & WPA_STA_WMM)
3472 f |= BIT(NL80211_STA_FLAG_WME);
3473 if (flags & WPA_STA_SHORT_PREAMBLE)
3474 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
3475 if (flags & WPA_STA_MFP)
3476 f |= BIT(NL80211_STA_FLAG_MFP);
3482 static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr,
3484 int flags_or, int flags_and)
3486 struct i802_bss *bss = priv;
3487 struct wpa_driver_nl80211_data *drv = bss->drv;
3488 struct nl_msg *msg, *flags = NULL;
3489 struct nl80211_sta_flag_update upd;
3491 msg = nlmsg_alloc();
3495 flags = nlmsg_alloc();
3501 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3502 0, NL80211_CMD_SET_STATION, 0);
3504 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
3505 if_nametoindex(bss->ifname));
3506 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
3509 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This
3510 * can be removed eventually.
3512 if (total_flags & WPA_STA_AUTHORIZED)
3513 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_AUTHORIZED);
3515 if (total_flags & WPA_STA_WMM)
3516 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_WME);
3518 if (total_flags & WPA_STA_SHORT_PREAMBLE)
3519 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_SHORT_PREAMBLE);
3521 if (total_flags & WPA_STA_MFP)
3522 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_MFP);
3524 if (nla_put_nested(msg, NL80211_ATTR_STA_FLAGS, flags))
3525 goto nla_put_failure;
3527 os_memset(&upd, 0, sizeof(upd));
3528 upd.mask = sta_flags_nl80211(flags_or | ~flags_and);
3529 upd.set = sta_flags_nl80211(flags_or);
3530 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
3534 return send_and_recv_msgs(drv, msg, NULL, NULL);
3541 static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv,
3542 struct wpa_driver_associate_params *params)
3544 if (wpa_driver_nl80211_set_mode(&drv->first_bss, params->mode) ||
3545 wpa_driver_nl80211_set_freq(drv, params->freq, 0, 0)) {
3546 nl80211_remove_monitor_interface(drv);
3550 /* TODO: setup monitor interface (and add code somewhere to remove this
3551 * when AP mode is stopped; associate with mode != 2 or drv_deinit) */
3557 static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv)
3562 msg = nlmsg_alloc();
3566 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
3567 NL80211_CMD_LEAVE_IBSS, 0);
3568 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3569 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3572 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d "
3573 "(%s)", ret, strerror(-ret));
3574 goto nla_put_failure;
3578 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully");
3586 static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv,
3587 struct wpa_driver_associate_params *params)
3593 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex);
3595 if (wpa_driver_nl80211_set_mode(&drv->first_bss, params->mode)) {
3596 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into "
3602 msg = nlmsg_alloc();
3606 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
3607 NL80211_CMD_JOIN_IBSS, 0);
3608 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3610 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid))
3611 goto nla_put_failure;
3613 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
3614 params->ssid, params->ssid_len);
3615 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
3617 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
3618 drv->ssid_len = params->ssid_len;
3620 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
3621 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
3623 ret = nl80211_set_conn_keys(params, msg);
3625 goto nla_put_failure;
3627 if (params->wpa_ie) {
3628 wpa_hexdump(MSG_DEBUG,
3629 " * Extra IEs for Beacon/Probe Response frames",
3630 params->wpa_ie, params->wpa_ie_len);
3631 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
3635 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3638 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)",
3639 ret, strerror(-ret));
3641 if (ret == -EALREADY && count == 1) {
3642 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after "
3644 nl80211_leave_ibss(drv);
3649 goto nla_put_failure;
3652 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully");
3660 static int wpa_driver_nl80211_connect(
3661 struct wpa_driver_nl80211_data *drv,
3662 struct wpa_driver_associate_params *params)
3665 enum nl80211_auth_type type;
3668 msg = nlmsg_alloc();
3672 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex);
3673 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
3674 NL80211_CMD_CONNECT, 0);
3676 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3677 if (params->bssid) {
3678 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
3679 MAC2STR(params->bssid));
3680 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
3683 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
3684 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
3687 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
3688 params->ssid, params->ssid_len);
3689 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
3691 if (params->ssid_len > sizeof(drv->ssid))
3692 goto nla_put_failure;
3693 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
3694 drv->ssid_len = params->ssid_len;
3696 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
3698 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
3701 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
3702 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
3703 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
3704 type = NL80211_AUTHTYPE_SHARED_KEY;
3705 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
3706 type = NL80211_AUTHTYPE_NETWORK_EAP;
3707 else if (params->auth_alg & WPA_AUTH_ALG_FT)
3708 type = NL80211_AUTHTYPE_FT;
3710 goto nla_put_failure;
3712 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
3713 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
3715 if (params->wpa_ie && params->wpa_ie_len) {
3716 enum nl80211_wpa_versions ver;
3718 if (params->wpa_ie[0] == WLAN_EID_RSN)
3719 ver = NL80211_WPA_VERSION_2;
3721 ver = NL80211_WPA_VERSION_1;
3723 wpa_printf(MSG_DEBUG, " * WPA Version %d", ver);
3724 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
3727 if (params->pairwise_suite != CIPHER_NONE) {
3730 switch (params->pairwise_suite) {
3732 cipher = WLAN_CIPHER_SUITE_WEP40;
3735 cipher = WLAN_CIPHER_SUITE_WEP104;
3738 cipher = WLAN_CIPHER_SUITE_CCMP;
3742 cipher = WLAN_CIPHER_SUITE_TKIP;
3745 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
3748 if (params->group_suite != CIPHER_NONE) {
3751 switch (params->group_suite) {
3753 cipher = WLAN_CIPHER_SUITE_WEP40;
3756 cipher = WLAN_CIPHER_SUITE_WEP104;
3759 cipher = WLAN_CIPHER_SUITE_CCMP;
3763 cipher = WLAN_CIPHER_SUITE_TKIP;
3766 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
3769 if (params->key_mgmt_suite == KEY_MGMT_802_1X ||
3770 params->key_mgmt_suite == KEY_MGMT_PSK) {
3771 int mgmt = WLAN_AKM_SUITE_PSK;
3773 switch (params->key_mgmt_suite) {
3774 case KEY_MGMT_802_1X:
3775 mgmt = WLAN_AKM_SUITE_8021X;
3779 mgmt = WLAN_AKM_SUITE_PSK;
3782 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt);
3785 ret = nl80211_set_conn_keys(params, msg);
3787 goto nla_put_failure;
3789 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3792 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d "
3793 "(%s)", ret, strerror(-ret));
3794 goto nla_put_failure;
3797 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully");
3806 static int wpa_driver_nl80211_associate(
3807 void *priv, struct wpa_driver_associate_params *params)
3809 struct i802_bss *bss = priv;
3810 struct wpa_driver_nl80211_data *drv = bss->drv;
3814 if (params->mode == IEEE80211_MODE_AP)
3815 return wpa_driver_nl80211_ap(drv, params);
3817 if (params->mode == IEEE80211_MODE_IBSS)
3818 return wpa_driver_nl80211_ibss(drv, params);
3820 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) {
3821 if (wpa_driver_nl80211_set_mode(priv, params->mode) < 0)
3823 return wpa_driver_nl80211_connect(drv, params);
3826 drv->associated = 0;
3828 msg = nlmsg_alloc();
3832 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)",
3834 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
3835 NL80211_CMD_ASSOCIATE, 0);
3837 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3838 if (params->bssid) {
3839 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
3840 MAC2STR(params->bssid));
3841 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
3844 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
3845 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
3846 drv->assoc_freq = params->freq;
3848 drv->assoc_freq = 0;
3850 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
3851 params->ssid, params->ssid_len);
3852 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
3854 if (params->ssid_len > sizeof(drv->ssid))
3855 goto nla_put_failure;
3856 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
3857 drv->ssid_len = params->ssid_len;
3859 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
3861 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
3864 #ifdef CONFIG_IEEE80211W
3865 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED)
3866 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED);
3867 #endif /* CONFIG_IEEE80211W */
3869 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
3871 if (params->prev_bssid) {
3872 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR,
3873 MAC2STR(params->prev_bssid));
3874 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN,
3875 params->prev_bssid);
3878 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3881 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
3882 "(%s)", ret, strerror(-ret));
3883 nl80211_dump_scan(drv);
3884 goto nla_put_failure;
3887 wpa_printf(MSG_DEBUG, "nl80211: Association request send "
3896 static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv,
3897 int ifindex, int mode)
3902 msg = nlmsg_alloc();
3906 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3907 0, NL80211_CMD_SET_INTERFACE, 0);
3908 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
3909 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode);
3911 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3915 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:"
3916 " %d (%s)", ifindex, mode, ret, strerror(-ret));
3921 static int wpa_driver_nl80211_set_mode(void *priv, int mode)
3923 struct i802_bss *bss = priv;
3924 struct wpa_driver_nl80211_data *drv = bss->drv;
3930 nlmode = NL80211_IFTYPE_STATION;
3933 nlmode = NL80211_IFTYPE_ADHOC;
3936 nlmode = NL80211_IFTYPE_AP;
3942 if (nl80211_set_mode(drv, drv->ifindex, nlmode) == 0) {
3943 drv->nlmode = nlmode;
3948 if (nlmode == drv->nlmode) {
3949 wpa_printf(MSG_DEBUG, "nl80211: Interface already in "
3950 "requested mode - ignore error");
3952 goto done; /* Already in the requested mode */
3955 /* mac80211 doesn't allow mode changes while the device is up, so
3956 * take the device down, try to set the mode again, and bring the
3959 if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 0) == 0) {
3960 /* Try to set the mode again while the interface is down */
3961 ret = nl80211_set_mode(drv, drv->ifindex, nlmode);
3962 if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 1))
3967 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while "
3968 "interface is down");
3969 drv->nlmode = nlmode;
3973 if (!ret && nlmode == NL80211_IFTYPE_AP) {
3974 /* Setup additional AP mode functionality if needed */
3975 if (drv->monitor_ifidx < 0 &&
3976 nl80211_create_monitor_interface(drv))
3978 } else if (!ret && nlmode != NL80211_IFTYPE_AP) {
3979 /* Remove additional AP mode functionality */
3980 nl80211_remove_monitor_interface(drv);
3981 bss->beacon_set = 0;
3985 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d "
3986 "from %d failed", nlmode, drv->nlmode);
3992 static int wpa_driver_nl80211_get_capa(void *priv,
3993 struct wpa_driver_capa *capa)
3995 struct i802_bss *bss = priv;
3996 struct wpa_driver_nl80211_data *drv = bss->drv;
3997 if (!drv->has_capability)
3999 os_memcpy(capa, &drv->capa, sizeof(*capa));
4004 static int wpa_driver_nl80211_set_operstate(void *priv, int state)
4006 struct i802_bss *bss = priv;
4007 struct wpa_driver_nl80211_data *drv = bss->drv;
4009 wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)",
4010 __func__, drv->operstate, state, state ? "UP" : "DORMANT");
4011 drv->operstate = state;
4012 return netlink_send_oper_ifla(drv->netlink, drv->ifindex, -1,
4013 state ? IF_OPER_UP : IF_OPER_DORMANT);
4017 static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized)
4019 struct i802_bss *bss = priv;
4020 struct wpa_driver_nl80211_data *drv = bss->drv;
4022 struct nl80211_sta_flag_update upd;
4024 msg = nlmsg_alloc();
4028 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4029 0, NL80211_CMD_SET_STATION, 0);
4031 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
4032 if_nametoindex(bss->ifname));
4033 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
4035 os_memset(&upd, 0, sizeof(upd));
4036 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED);
4038 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED);
4039 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
4041 return send_and_recv_msgs(drv, msg, NULL, NULL);
4049 static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
4054 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d",
4056 for (i = 0; i < drv->num_if_indices; i++) {
4057 if (drv->if_indices[i] == 0) {
4058 drv->if_indices[i] = ifidx;
4063 if (drv->if_indices != drv->default_if_indices)
4064 old = drv->if_indices;
4068 drv->if_indices = os_realloc(old,
4069 sizeof(int) * (drv->num_if_indices + 1));
4070 if (!drv->if_indices) {
4072 drv->if_indices = drv->default_if_indices;
4074 drv->if_indices = old;
4075 wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
4077 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
4080 drv->if_indices[drv->num_if_indices] = ifidx;
4081 drv->num_if_indices++;
4085 static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
4089 for (i = 0; i < drv->num_if_indices; i++) {
4090 if (drv->if_indices[i] == ifidx) {
4091 drv->if_indices[i] = 0;
4098 static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
4102 for (i = 0; i < drv->num_if_indices; i++)
4103 if (drv->if_indices[i] == ifidx)
4110 static inline int min_int(int a, int b)
4118 static int get_key_handler(struct nl_msg *msg, void *arg)
4120 struct nlattr *tb[NL80211_ATTR_MAX + 1];
4121 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
4123 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
4124 genlmsg_attrlen(gnlh, 0), NULL);
4127 * TODO: validate the key index and mac address!
4128 * Otherwise, there's a race condition as soon as
4129 * the kernel starts sending key notifications.
4132 if (tb[NL80211_ATTR_KEY_SEQ])
4133 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]),
4134 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6));
4139 static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
4142 struct i802_bss *bss = priv;
4143 struct wpa_driver_nl80211_data *drv = bss->drv;
4146 msg = nlmsg_alloc();
4150 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4151 0, NL80211_CMD_GET_KEY, 0);
4154 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
4155 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
4156 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
4160 return send_and_recv_msgs(drv, msg, get_key_handler, seq);
4166 static int i802_set_rate_sets(void *priv, int *supp_rates, int *basic_rates,
4169 struct i802_bss *bss = priv;
4170 struct wpa_driver_nl80211_data *drv = bss->drv;
4172 u8 rates[NL80211_MAX_SUPP_RATES];
4176 msg = nlmsg_alloc();
4180 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
4181 NL80211_CMD_SET_BSS, 0);
4183 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; i++)
4184 rates[rates_len++] = basic_rates[i] / 5;
4186 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates);
4188 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
4190 return send_and_recv_msgs(drv, msg, NULL, NULL);
4196 /* Set kernel driver on given frequency (MHz) */
4197 static int i802_set_freq(void *priv, struct hostapd_freq_params *freq)
4199 struct i802_bss *bss = priv;
4200 struct wpa_driver_nl80211_data *drv = bss->drv;
4201 return wpa_driver_nl80211_set_freq(drv, freq->freq, freq->ht_enabled,
4202 freq->sec_channel_offset);
4206 static int i802_set_rts(void *priv, int rts)
4208 struct i802_bss *bss = priv;
4209 struct wpa_driver_nl80211_data *drv = bss->drv;
4214 msg = nlmsg_alloc();
4223 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4224 0, NL80211_CMD_SET_WIPHY, 0);
4225 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4226 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val);
4228 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4232 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: "
4233 "%d (%s)", rts, ret, strerror(-ret));
4238 static int i802_set_frag(void *priv, int frag)
4240 struct i802_bss *bss = priv;
4241 struct wpa_driver_nl80211_data *drv = bss->drv;
4246 msg = nlmsg_alloc();
4255 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4256 0, NL80211_CMD_SET_WIPHY, 0);
4257 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4258 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val);
4260 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4264 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold "
4265 "%d: %d (%s)", frag, ret, strerror(-ret));
4270 static int i802_flush(void *priv)
4272 struct i802_bss *bss = priv;
4273 struct wpa_driver_nl80211_data *drv = bss->drv;
4276 msg = nlmsg_alloc();
4280 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4281 0, NL80211_CMD_DEL_STATION, 0);
4284 * XXX: FIX! this needs to flush all VLANs too
4286 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
4287 if_nametoindex(bss->ifname));
4289 return send_and_recv_msgs(drv, msg, NULL, NULL);
4295 static int get_sta_handler(struct nl_msg *msg, void *arg)
4297 struct nlattr *tb[NL80211_ATTR_MAX + 1];
4298 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
4299 struct hostap_sta_driver_data *data = arg;
4300 struct nlattr *stats[NL80211_STA_INFO_MAX + 1];
4301 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
4302 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
4303 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
4304 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
4305 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
4306 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
4309 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
4310 genlmsg_attrlen(gnlh, 0), NULL);
4313 * TODO: validate the interface and mac address!
4314 * Otherwise, there's a race condition as soon as
4315 * the kernel starts sending station notifications.
4318 if (!tb[NL80211_ATTR_STA_INFO]) {
4319 wpa_printf(MSG_DEBUG, "sta stats missing!");
4322 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX,
4323 tb[NL80211_ATTR_STA_INFO],
4325 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!");
4329 if (stats[NL80211_STA_INFO_INACTIVE_TIME])
4330 data->inactive_msec =
4331 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]);
4332 if (stats[NL80211_STA_INFO_RX_BYTES])
4333 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]);
4334 if (stats[NL80211_STA_INFO_TX_BYTES])
4335 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]);
4336 if (stats[NL80211_STA_INFO_RX_PACKETS])
4338 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]);
4339 if (stats[NL80211_STA_INFO_TX_PACKETS])
4341 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]);
4346 static int i802_read_sta_data(void *priv, struct hostap_sta_driver_data *data,
4349 struct i802_bss *bss = priv;
4350 struct wpa_driver_nl80211_data *drv = bss->drv;
4353 os_memset(data, 0, sizeof(*data));
4354 msg = nlmsg_alloc();
4358 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4359 0, NL80211_CMD_GET_STATION, 0);
4361 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
4362 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
4364 return send_and_recv_msgs(drv, msg, get_sta_handler, data);
4370 static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
4371 int cw_min, int cw_max, int burst_time)
4373 struct i802_bss *bss = priv;
4374 struct wpa_driver_nl80211_data *drv = bss->drv;
4376 struct nlattr *txq, *params;
4378 msg = nlmsg_alloc();
4382 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4383 0, NL80211_CMD_SET_WIPHY, 0);
4385 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
4387 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS);
4389 goto nla_put_failure;
4391 /* We are only sending parameters for a single TXQ at a time */
4392 params = nla_nest_start(msg, 1);
4394 goto nla_put_failure;
4396 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, queue);
4397 /* Burst time is configured in units of 0.1 msec and TXOP parameter in
4398 * 32 usec, so need to convert the value here. */
4399 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32);
4400 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min);
4401 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max);
4402 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs);
4404 nla_nest_end(msg, params);
4406 nla_nest_end(msg, txq);
4408 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
4415 static int i802_set_bss(void *priv, int cts, int preamble, int slot)
4417 struct i802_bss *bss = priv;
4418 struct wpa_driver_nl80211_data *drv = bss->drv;
4421 msg = nlmsg_alloc();
4425 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
4426 NL80211_CMD_SET_BSS, 0);
4429 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts);
4431 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble);
4433 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot);
4435 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
4437 return send_and_recv_msgs(drv, msg, NULL, NULL);
4443 static int i802_set_cts_protect(void *priv, int value)
4445 return i802_set_bss(priv, value, -1, -1);
4449 static int i802_set_preamble(void *priv, int value)
4451 return i802_set_bss(priv, -1, value, -1);
4455 static int i802_set_short_slot_time(void *priv, int value)
4457 return i802_set_bss(priv, -1, -1, value);
4461 static int i802_set_sta_vlan(void *priv, const u8 *addr,
4462 const char *ifname, int vlan_id)
4464 struct i802_bss *bss = priv;
4465 struct wpa_driver_nl80211_data *drv = bss->drv;
4468 msg = nlmsg_alloc();
4472 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4473 0, NL80211_CMD_SET_STATION, 0);
4475 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
4476 if_nametoindex(bss->ifname));
4477 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
4478 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN,
4479 if_nametoindex(ifname));
4481 return send_and_recv_msgs(drv, msg, NULL, NULL);
4487 static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val)
4489 struct i802_bss *bss = priv;
4490 struct wpa_driver_nl80211_data *drv = bss->drv;
4491 char name[IFNAMSIZ + 1];
4493 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid);
4494 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR
4495 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name);
4497 if (nl80211_create_iface(drv, name, NL80211_IFTYPE_AP_VLAN,
4500 linux_set_iface_flags(drv->ioctl_sock, name, 1);
4501 return i802_set_sta_vlan(priv, addr, name, 0);
4503 i802_set_sta_vlan(priv, addr, bss->ifname, 0);
4504 return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN,
4510 static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
4512 struct wpa_driver_nl80211_data *drv = eloop_ctx;
4513 struct sockaddr_ll lladdr;
4514 unsigned char buf[3000];
4516 socklen_t fromlen = sizeof(lladdr);
4518 len = recvfrom(sock, buf, sizeof(buf), 0,
4519 (struct sockaddr *)&lladdr, &fromlen);
4525 if (have_ifidx(drv, lladdr.sll_ifindex))
4526 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len);
4530 static int i802_get_inact_sec(void *priv, const u8 *addr)
4532 struct hostap_sta_driver_data data;
4535 data.inactive_msec = (unsigned long) -1;
4536 ret = i802_read_sta_data(priv, &data, addr);
4537 if (ret || data.inactive_msec == (unsigned long) -1)
4539 return data.inactive_msec / 1000;
4543 static int i802_sta_clear_stats(void *priv, const u8 *addr)
4552 static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
4555 struct i802_bss *bss = priv;
4556 struct ieee80211_mgmt mgmt;
4558 memset(&mgmt, 0, sizeof(mgmt));
4559 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
4560 WLAN_FC_STYPE_DEAUTH);
4561 memcpy(mgmt.da, addr, ETH_ALEN);
4562 memcpy(mgmt.sa, own_addr, ETH_ALEN);
4563 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
4564 mgmt.u.deauth.reason_code = host_to_le16(reason);
4565 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
4567 sizeof(mgmt.u.deauth));
4571 static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
4574 struct i802_bss *bss = priv;
4575 struct ieee80211_mgmt mgmt;
4577 memset(&mgmt, 0, sizeof(mgmt));
4578 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
4579 WLAN_FC_STYPE_DISASSOC);
4580 memcpy(mgmt.da, addr, ETH_ALEN);
4581 memcpy(mgmt.sa, own_addr, ETH_ALEN);
4582 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
4583 mgmt.u.disassoc.reason_code = host_to_le16(reason);
4584 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
4586 sizeof(mgmt.u.disassoc));
4590 static int i802_check_bridge(struct wpa_driver_nl80211_data *drv,
4591 const char *brname, const char *ifname)
4594 char in_br[IFNAMSIZ];
4596 os_strlcpy(drv->brname, brname, IFNAMSIZ);
4597 ifindex = if_nametoindex(brname);
4600 * Bridge was configured, but the bridge device does
4601 * not exist. Try to add it now.
4603 if (linux_br_add(drv->ioctl_sock, brname) < 0) {
4604 wpa_printf(MSG_ERROR, "nl80211: Failed to add the "
4605 "bridge interface %s: %s",
4606 brname, strerror(errno));
4609 drv->added_bridge = 1;
4610 add_ifidx(drv, if_nametoindex(brname));
4613 if (linux_br_get(in_br, ifname) == 0) {
4614 if (os_strcmp(in_br, brname) == 0)
4615 return 0; /* already in the bridge */
4617 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from "
4618 "bridge %s", ifname, in_br);
4619 if (linux_br_del_if(drv->ioctl_sock, in_br, ifname) < 0) {
4620 wpa_printf(MSG_ERROR, "nl80211: Failed to "
4621 "remove interface %s from bridge "
4623 ifname, brname, strerror(errno));
4628 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s",
4630 if (linux_br_add_if(drv->ioctl_sock, brname, ifname) < 0) {
4631 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s "
4632 "into bridge %s: %s",
4633 ifname, brname, strerror(errno));
4636 drv->added_if_into_bridge = 1;
4642 static void *i802_init(struct hostapd_data *hapd,
4643 struct wpa_init_params *params)
4645 struct wpa_driver_nl80211_data *drv;
4646 struct i802_bss *bss;
4648 char brname[IFNAMSIZ];
4649 int ifindex, br_ifindex;
4652 bss = wpa_driver_nl80211_init(hapd, params->ifname);
4657 if (linux_br_get(brname, params->ifname) == 0) {
4658 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s",
4659 params->ifname, brname);
4660 br_ifindex = if_nametoindex(brname);
4666 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
4667 drv->if_indices = drv->default_if_indices;
4668 for (i = 0; i < params->num_bridge; i++) {
4669 if (params->bridge[i]) {
4670 ifindex = if_nametoindex(params->bridge[i]);
4672 add_ifidx(drv, ifindex);
4673 if (ifindex == br_ifindex)
4677 if (!br_added && br_ifindex &&
4678 (params->num_bridge == 0 || !params->bridge[0]))
4679 add_ifidx(drv, br_ifindex);
4681 /* start listening for EAPOL on the default AP interface */
4682 add_ifidx(drv, drv->ifindex);
4684 if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 0))
4687 if (params->bssid) {
4688 if (linux_set_ifhwaddr(drv->ioctl_sock, bss->ifname,
4693 if (wpa_driver_nl80211_set_mode(bss, IEEE80211_MODE_AP)) {
4694 wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s "
4695 "into AP mode", bss->ifname);
4699 if (params->num_bridge && params->bridge[0] &&
4700 i802_check_bridge(drv, params->bridge[0], params->ifname) < 0)
4703 if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 1))
4706 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE));
4707 if (drv->eapol_sock < 0) {
4708 perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)");
4712 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL))
4714 printf("Could not register read socket for eapol\n");
4718 if (linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, params->own_addr))
4724 nl80211_remove_monitor_interface(drv);
4725 if (drv->ioctl_sock >= 0)
4726 close(drv->ioctl_sock);
4728 genl_family_put(drv->nl80211);
4729 nl_cache_free(drv->nl_cache);
4730 nl_handle_destroy(drv->nl_handle);
4731 nl_cb_put(drv->nl_cb);
4738 static void i802_deinit(void *priv)
4740 wpa_driver_nl80211_deinit(priv);
4743 #endif /* HOSTAPD */
4746 static enum nl80211_iftype wpa_driver_nl80211_if_type(
4747 enum wpa_driver_if_type type)
4750 case WPA_IF_STATION:
4751 return NL80211_IFTYPE_STATION;
4752 case WPA_IF_AP_VLAN:
4753 return NL80211_IFTYPE_AP_VLAN;
4755 return NL80211_IFTYPE_AP;
4761 static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type,
4762 const char *ifname, const u8 *addr,
4763 void *bss_ctx, void **drv_priv)
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 */
4778 ifidx = nl80211_create_iface(drv, ifname,
4779 wpa_driver_nl80211_if_type(type), addr,
4784 #endif /* HOSTAPD */
4789 if (type == WPA_IF_AP_BSS) {
4790 if (linux_set_iface_flags(drv->ioctl_sock, ifname, 1)) {
4791 nl80211_remove_iface(drv, ifidx);
4795 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ);
4796 new_bss->ifindex = ifidx;
4798 new_bss->next = drv->first_bss.next;
4799 drv->first_bss.next = new_bss;
4801 *drv_priv = new_bss;
4803 #endif /* HOSTAPD */
4809 static int wpa_driver_nl80211_if_remove(void *priv,
4810 enum wpa_driver_if_type type,
4813 struct i802_bss *bss = priv;
4814 struct wpa_driver_nl80211_data *drv = bss->drv;
4815 int ifindex = if_nametoindex(ifname);
4817 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d",
4818 __func__, type, ifname, ifindex);
4821 nl80211_remove_iface(drv, ifindex);
4824 if (type != WPA_IF_AP_BSS)
4827 if (bss != &drv->first_bss) {
4828 struct i802_bss *tbss = &drv->first_bss;
4831 if (tbss->next != bss)
4834 tbss->next = bss->next;
4839 #endif /* HOSTAPD */
4845 static int cookie_handler(struct nl_msg *msg, void *arg)
4847 struct nlattr *tb[NL80211_ATTR_MAX + 1];
4848 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
4850 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
4851 genlmsg_attrlen(gnlh, 0), NULL);
4852 if (tb[NL80211_ATTR_COOKIE])
4853 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
4858 static int wpa_driver_nl80211_send_action(void *priv, unsigned int freq,
4859 const u8 *dst, const u8 *src,
4861 const u8 *data, size_t data_len)
4863 struct i802_bss *bss = priv;
4864 struct wpa_driver_nl80211_data *drv = bss->drv;
4868 struct ieee80211_hdr *hdr;
4871 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d)",
4874 buf = os_zalloc(24 + data_len);
4877 os_memcpy(buf + 24, data, data_len);
4878 hdr = (struct ieee80211_hdr *) buf;
4879 hdr->frame_control =
4880 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION);
4881 os_memcpy(hdr->addr1, dst, ETH_ALEN);
4882 os_memcpy(hdr->addr2, src, ETH_ALEN);
4883 os_memcpy(hdr->addr3, bssid, ETH_ALEN);
4885 if (drv->nlmode == NL80211_IFTYPE_AP) {
4886 ret = wpa_driver_nl80211_send_mlme(priv, buf, 24 + data_len);
4891 msg = nlmsg_alloc();
4897 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
4898 NL80211_CMD_ACTION, 0);
4900 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4901 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
4902 NLA_PUT(msg, NL80211_ATTR_FRAME, 24 + data_len, buf);
4907 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
4910 wpa_printf(MSG_DEBUG, "nl80211: Action command failed: ret=%d "
4911 "(%s)", ret, strerror(-ret));
4912 goto nla_put_failure;
4914 wpa_printf(MSG_DEBUG, "nl80211: Action TX command accepted; "
4915 "cookie 0x%llx", (long long unsigned int) cookie);
4916 drv->send_action_cookie = cookie;
4917 drv->pending_send_action = 1;
4927 static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq,
4928 unsigned int duration)
4930 struct i802_bss *bss = priv;
4931 struct wpa_driver_nl80211_data *drv = bss->drv;
4936 msg = nlmsg_alloc();
4940 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
4941 NL80211_CMD_REMAIN_ON_CHANNEL, 0);
4943 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4944 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
4945 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
4948 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
4950 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie "
4951 "0x%llx for freq=%u MHz duration=%u",
4952 (long long unsigned int) cookie, freq, duration);
4953 drv->remain_on_chan_cookie = cookie;
4956 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel "
4957 "(freq=%d): %d (%s)", freq, ret, strerror(-ret));
4963 static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv)
4965 struct i802_bss *bss = priv;
4966 struct wpa_driver_nl80211_data *drv = bss->drv;
4970 if (!drv->pending_remain_on_chan) {
4971 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel "
4976 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie "
4978 (long long unsigned int) drv->remain_on_chan_cookie);
4980 msg = nlmsg_alloc();
4984 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
4985 NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, 0);
4987 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4988 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie);
4990 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4993 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: "
4994 "%d (%s)", ret, strerror(-ret));
5000 static void wpa_driver_nl80211_probe_req_report_timeout(void *eloop_ctx,
5003 struct wpa_driver_nl80211_data *drv = eloop_ctx;
5004 if (drv->monitor_ifidx < 0)
5005 return; /* monitor interface already removed */
5007 if (drv->nlmode != NL80211_IFTYPE_STATION)
5008 return; /* not in station mode anymore */
5010 if (drv->probe_req_report)
5011 return; /* reporting enabled */
5013 wpa_printf(MSG_DEBUG, "nl80211: Remove monitor interface due to no "
5014 "Probe Request reporting needed anymore");
5015 nl80211_remove_monitor_interface(drv);
5019 static int wpa_driver_nl80211_probe_req_report(void *priv, int report)
5021 struct i802_bss *bss = priv;
5022 struct wpa_driver_nl80211_data *drv = bss->drv;
5024 if (drv->nlmode != NL80211_IFTYPE_STATION) {
5025 wpa_printf(MSG_DEBUG, "nl80211: probe_req_report control only "
5026 "allowed in station mode (iftype=%d)",
5030 drv->probe_req_report = report;
5033 eloop_cancel_timeout(
5034 wpa_driver_nl80211_probe_req_report_timeout,
5036 if (drv->monitor_ifidx < 0 &&
5037 nl80211_create_monitor_interface(drv))
5041 * It takes a while to remove the monitor interface, so try to
5042 * avoid doing this if it is needed again shortly. Instead,
5043 * schedule the interface to be removed later if no need for it
5046 wpa_printf(MSG_DEBUG, "nl80211: Scheduling monitor interface "
5047 "to be removed after 10 seconds of no use");
5048 eloop_register_timeout(
5049 10, 0, wpa_driver_nl80211_probe_req_report_timeout,
5057 static int wpa_driver_nl80211_alloc_interface_addr(void *priv, u8 *addr,
5060 struct i802_bss *bss = priv;
5061 struct wpa_driver_nl80211_data *drv = bss->drv;
5066 if (linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, addr) < 0)
5069 if (addr[0] & 0x02) {
5070 /* TODO: add support for generating multiple addresses */
5073 addr[0] = 0x02; /* locally administered */
5079 static void wpa_driver_nl80211_release_interface_addr(void *priv,
5082 /* TODO: keep list of allocated address and release them here */
5086 static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
5087 int ifindex, int disabled)
5090 struct nlattr *bands, *band;
5093 msg = nlmsg_alloc();
5097 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
5098 NL80211_CMD_SET_TX_BITRATE_MASK, 0);
5099 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
5101 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES);
5103 goto nla_put_failure;
5106 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything
5107 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS
5108 * rates. All 5 GHz rates are left enabled.
5110 band = nla_nest_start(msg, NL80211_BAND_2GHZ);
5112 goto nla_put_failure;
5113 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8,
5114 "\x0c\x12\x18\x24\x30\x48\x60\x6c");
5115 nla_nest_end(msg, band);
5117 nla_nest_end(msg, bands);
5119 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5122 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d "
5123 "(%s)", ret, strerror(-ret));
5134 static int wpa_driver_nl80211_disable_11b_rates(void *priv, int disabled)
5136 struct i802_bss *bss = priv;
5137 struct wpa_driver_nl80211_data *drv = bss->drv;
5138 drv->disable_11b_rates = disabled;
5139 return nl80211_disable_11b_rates(drv, drv->ifindex, disabled);
5143 static int wpa_driver_nl80211_deinit_ap(void *priv)
5145 struct i802_bss *bss = priv;
5146 struct wpa_driver_nl80211_data *drv = bss->drv;
5147 if (drv->nlmode != NL80211_IFTYPE_AP)
5149 wpa_driver_nl80211_del_beacon(drv);
5150 return wpa_driver_nl80211_set_mode(priv, IEEE80211_MODE_INFRA);
5154 static void wpa_driver_nl80211_resume(void *priv)
5156 struct i802_bss *bss = priv;
5157 struct wpa_driver_nl80211_data *drv = bss->drv;
5158 if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 1)) {
5159 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on "
5165 static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap,
5166 const u8 *ies, size_t ies_len)
5168 struct i802_bss *bss = priv;
5169 struct wpa_driver_nl80211_data *drv = bss->drv;
5173 u8 own_addr[ETH_ALEN];
5175 if (linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, own_addr) < 0)
5179 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action "
5180 "action %d", action);
5185 * Action frame payload:
5186 * Category[1] = 6 (Fast BSS Transition)
5187 * Action[1] = 1 (Fast BSS Transition Request)
5193 data_len = 2 + 2 * ETH_ALEN + ies_len;
5194 data = os_malloc(data_len);
5198 *pos++ = 0x06; /* FT Action category */
5200 os_memcpy(pos, own_addr, ETH_ALEN);
5202 os_memcpy(pos, target_ap, ETH_ALEN);
5204 os_memcpy(pos, ies, ies_len);
5206 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, drv->bssid,
5207 own_addr, drv->bssid,
5215 static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis)
5217 struct i802_bss *bss = priv;
5218 struct wpa_driver_nl80211_data *drv = bss->drv;
5219 struct nl_msg *msg, *cqm = NULL;
5221 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d "
5222 "hysteresis=%d", threshold, hysteresis);
5224 msg = nlmsg_alloc();
5228 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
5229 0, NL80211_CMD_SET_CQM, 0);
5231 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
5233 cqm = nlmsg_alloc();
5237 NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_THOLD, threshold);
5238 NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_HYST, hysteresis);
5239 nla_put_nested(msg, NL80211_ATTR_CQM, cqm);
5241 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
5253 static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len,
5256 struct i802_bss *bss = priv;
5257 struct wpa_driver_nl80211_data *drv = bss->drv;
5258 return wpa_driver_nl80211_send_frame(drv, data, data_len, encrypt);
5262 const struct wpa_driver_ops wpa_driver_nl80211_ops = {
5264 .desc = "Linux nl80211/cfg80211",
5265 .get_bssid = wpa_driver_nl80211_get_bssid,
5266 .get_ssid = wpa_driver_nl80211_get_ssid,
5267 .set_key = wpa_driver_nl80211_set_key,
5268 .scan2 = wpa_driver_nl80211_scan,
5269 .get_scan_results2 = wpa_driver_nl80211_get_scan_results,
5270 .deauthenticate = wpa_driver_nl80211_deauthenticate,
5271 .disassociate = wpa_driver_nl80211_disassociate,
5272 .authenticate = wpa_driver_nl80211_authenticate,
5273 .associate = wpa_driver_nl80211_associate,
5274 .init = wpa_driver_nl80211_init,
5275 .deinit = wpa_driver_nl80211_deinit,
5276 .get_capa = wpa_driver_nl80211_get_capa,
5277 .set_operstate = wpa_driver_nl80211_set_operstate,
5278 .set_supp_port = wpa_driver_nl80211_set_supp_port,
5279 .set_country = wpa_driver_nl80211_set_country,
5280 .set_beacon = wpa_driver_nl80211_set_beacon,
5281 .if_add = wpa_driver_nl80211_if_add,
5282 .if_remove = wpa_driver_nl80211_if_remove,
5283 .send_mlme = wpa_driver_nl80211_send_mlme,
5284 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data,
5285 .sta_add = wpa_driver_nl80211_sta_add,
5286 .sta_remove = wpa_driver_nl80211_sta_remove,
5287 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol,
5288 .sta_set_flags = wpa_driver_nl80211_sta_set_flags,
5290 .hapd_init = i802_init,
5291 .hapd_deinit = i802_deinit,
5292 .get_seqnum = i802_get_seqnum,
5293 .flush = i802_flush,
5294 .read_sta_data = i802_read_sta_data,
5295 .sta_deauth = i802_sta_deauth,
5296 .sta_disassoc = i802_sta_disassoc,
5297 .get_inact_sec = i802_get_inact_sec,
5298 .sta_clear_stats = i802_sta_clear_stats,
5299 .set_freq = i802_set_freq,
5300 .set_rts = i802_set_rts,
5301 .set_frag = i802_set_frag,
5302 .set_rate_sets = i802_set_rate_sets,
5303 .set_cts_protect = i802_set_cts_protect,
5304 .set_preamble = i802_set_preamble,
5305 .set_short_slot_time = i802_set_short_slot_time,
5306 .set_tx_queue_params = i802_set_tx_queue_params,
5307 .set_sta_vlan = i802_set_sta_vlan,
5308 .set_wds_sta = i802_set_wds_sta,
5309 #endif /* HOSTAPD */
5310 .send_action = wpa_driver_nl80211_send_action,
5311 .remain_on_channel = wpa_driver_nl80211_remain_on_channel,
5312 .cancel_remain_on_channel =
5313 wpa_driver_nl80211_cancel_remain_on_channel,
5314 .probe_req_report = wpa_driver_nl80211_probe_req_report,
5315 .alloc_interface_addr = wpa_driver_nl80211_alloc_interface_addr,
5316 .release_interface_addr = wpa_driver_nl80211_release_interface_addr,
5317 .disable_11b_rates = wpa_driver_nl80211_disable_11b_rates,
5318 .deinit_ap = wpa_driver_nl80211_deinit_ap,
5319 .resume = wpa_driver_nl80211_resume,
5320 .send_ft_action = nl80211_send_ft_action,
5321 .signal_monitor = nl80211_signal_monitor,
5322 .send_frame = nl80211_send_frame,