2 * Driver interaction with Linux nl80211/cfg80211
3 * Copyright (c) 2002-2008, 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, 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>
21 #include <net/if_arp.h>
23 #include <netlink/genl/genl.h>
24 #include <netlink/genl/family.h>
25 #include <netlink/genl/ctrl.h>
26 #include <netpacket/packet.h>
27 #include <linux/filter.h>
28 #include "nl80211_copy.h"
32 #include "radiotap_iter.h"
34 #include "common/ieee802_11_defs.h"
38 /* libnl 2.0 compatibility code */
39 #define nl_handle nl_sock
40 #define nl_handle_alloc_cb nl_socket_alloc_cb
41 #define nl_handle_destroy nl_socket_free
42 #endif /* CONFIG_LIBNL20 */
46 #define IFF_LOWER_UP 0x10000 /* driver signals L1 up */
49 #define IFF_DORMANT 0x20000 /* driver signals dormant */
52 #ifndef IF_OPER_DORMANT
53 #define IF_OPER_DORMANT 5
60 struct i802_bss *next;
62 unsigned int beacon_set:1;
65 struct wpa_driver_nl80211_data {
68 int ioctl_sock; /* socket for ioctl() use */
69 char ifname[IFNAMSIZ + 1];
72 struct wpa_driver_capa capa;
77 int scan_complete_events;
79 struct nl_handle *nl_handle;
80 struct nl_handle *nl_handle_event;
81 struct nl_cache *nl_cache;
82 struct nl_cache *nl_cache_event;
84 struct genl_family *nl80211;
86 u8 auth_bssid[ETH_ALEN];
92 int ap_scan_as_station;
97 unsigned int beacon_set:1;
100 int eapol_sock; /* socket for EAPOL frames */
102 int default_if_indices[16];
114 static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx,
116 static int wpa_driver_nl80211_set_mode(void *priv, int mode);
118 wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv);
119 static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
120 const u8 *addr, int cmd, u16 reason_code);
121 static void nl80211_remove_monitor_interface(
122 struct wpa_driver_nl80211_data *drv);
125 static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
126 static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
127 static struct i802_bss * get_bss(struct wpa_driver_nl80211_data *drv,
129 static int i802_set_freq(void *priv, struct hostapd_freq_params *freq);
134 static int ack_handler(struct nl_msg *msg, void *arg)
141 static int finish_handler(struct nl_msg *msg, void *arg)
148 static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err,
157 static int no_seq_check(struct nl_msg *msg, void *arg)
163 static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv,
165 int (*valid_handler)(struct nl_msg *, void *),
171 cb = nl_cb_clone(drv->nl_cb);
175 err = nl_send_auto_complete(drv->nl_handle, msg);
181 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
182 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
183 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
186 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM,
187 valid_handler, valid_data);
190 nl_recvmsgs(drv->nl_handle, cb);
204 static int family_handler(struct nl_msg *msg, void *arg)
206 struct family_data *res = arg;
207 struct nlattr *tb[CTRL_ATTR_MAX + 1];
208 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
209 struct nlattr *mcgrp;
212 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
213 genlmsg_attrlen(gnlh, 0), NULL);
214 if (!tb[CTRL_ATTR_MCAST_GROUPS])
217 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) {
218 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1];
219 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp),
220 nla_len(mcgrp), NULL);
221 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] ||
222 !tb2[CTRL_ATTR_MCAST_GRP_ID] ||
223 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]),
225 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0)
227 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]);
235 static int nl_get_multicast_id(struct wpa_driver_nl80211_data *drv,
236 const char *family, const char *group)
240 struct family_data res = { group, -ENOENT };
245 genlmsg_put(msg, 0, 0, genl_ctrl_resolve(drv->nl_handle, "nlctrl"),
246 0, 0, CTRL_CMD_GETFAMILY, 0);
247 NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family);
249 ret = send_and_recv_msgs(drv, msg, family_handler, &res);
261 static int get_ifhwaddr(struct wpa_driver_nl80211_data *drv,
262 const char *ifname, u8 *addr)
266 os_memset(&ifr, 0, sizeof(ifr));
267 os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
268 if (ioctl(drv->ioctl_sock, SIOCGIFHWADDR, &ifr)) {
269 wpa_printf(MSG_ERROR, "%s: ioctl(SIOCGIFHWADDR): %d (%s)",
270 ifname, errno, strerror(errno));
274 if (ifr.ifr_hwaddr.sa_family != ARPHRD_ETHER) {
275 wpa_printf(MSG_ERROR, "%s: Invalid HW-addr family 0x%04x",
276 ifname, ifr.ifr_hwaddr.sa_family);
279 os_memcpy(addr, ifr.ifr_hwaddr.sa_data, ETH_ALEN);
285 static int set_ifhwaddr(struct wpa_driver_nl80211_data *drv,
286 const char *ifname, const u8 *addr)
290 os_memset(&ifr, 0, sizeof(ifr));
291 os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
292 os_memcpy(ifr.ifr_hwaddr.sa_data, addr, ETH_ALEN);
293 ifr.ifr_hwaddr.sa_family = ARPHRD_ETHER;
295 if (ioctl(drv->ioctl_sock, SIOCSIFHWADDR, &ifr)) {
296 wpa_printf(MSG_DEBUG, "%s: ioctl(SIOCSIFHWADDR): %d (%s)",
297 ifname, errno, strerror(errno));
306 static int wpa_driver_nl80211_send_oper_ifla(
307 struct wpa_driver_nl80211_data *drv,
308 int linkmode, int operstate)
312 struct ifinfomsg ifinfo;
319 os_memset(&req, 0, sizeof(req));
321 req.hdr.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
322 req.hdr.nlmsg_type = RTM_SETLINK;
323 req.hdr.nlmsg_flags = NLM_F_REQUEST;
324 req.hdr.nlmsg_seq = ++nl_seq;
325 req.hdr.nlmsg_pid = 0;
327 req.ifinfo.ifi_family = AF_UNSPEC;
328 req.ifinfo.ifi_type = 0;
329 req.ifinfo.ifi_index = drv->ifindex;
330 req.ifinfo.ifi_flags = 0;
331 req.ifinfo.ifi_change = 0;
333 if (linkmode != -1) {
334 rta = aliasing_hide_typecast(
335 ((char *) &req + NLMSG_ALIGN(req.hdr.nlmsg_len)),
337 rta->rta_type = IFLA_LINKMODE;
338 rta->rta_len = RTA_LENGTH(sizeof(char));
339 *((char *) RTA_DATA(rta)) = linkmode;
340 req.hdr.nlmsg_len = NLMSG_ALIGN(req.hdr.nlmsg_len) +
341 RTA_LENGTH(sizeof(char));
343 if (operstate != -1) {
344 rta = aliasing_hide_typecast(
345 ((char *) &req + NLMSG_ALIGN(req.hdr.nlmsg_len)),
347 rta->rta_type = IFLA_OPERSTATE;
348 rta->rta_len = RTA_LENGTH(sizeof(char));
349 *((char *) RTA_DATA(rta)) = operstate;
350 req.hdr.nlmsg_len = NLMSG_ALIGN(req.hdr.nlmsg_len) +
351 RTA_LENGTH(sizeof(char));
354 wpa_printf(MSG_DEBUG, "nl80211: Operstate: linkmode=%d, operstate=%d",
355 linkmode, operstate);
357 ret = send(drv->link_event_sock, &req, req.hdr.nlmsg_len, 0);
359 wpa_printf(MSG_DEBUG, "nl80211: Sending operstate IFLA failed:"
360 " %s (assume operstate is not supported)",
364 return ret < 0 ? -1 : 0;
368 static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid)
370 struct wpa_driver_nl80211_data *drv = priv;
371 if (!drv->associated)
373 os_memcpy(bssid, drv->bssid, ETH_ALEN);
378 static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid)
380 struct wpa_driver_nl80211_data *drv = priv;
381 if (!drv->associated)
383 os_memcpy(ssid, drv->ssid, drv->ssid_len);
384 return drv->ssid_len;
388 static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv,
389 void *ctx, char *buf, size_t len,
392 union wpa_event_data event;
394 os_memset(&event, 0, sizeof(event));
395 if (len > sizeof(event.interface_status.ifname))
396 len = sizeof(event.interface_status.ifname) - 1;
397 os_memcpy(event.interface_status.ifname, buf, len);
398 event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED :
399 EVENT_INTERFACE_ADDED;
401 wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s",
403 event.interface_status.ifname,
404 del ? "removed" : "added");
406 if (os_strcmp(drv->ifname, event.interface_status.ifname) == 0) {
413 wpa_supplicant_event(ctx, EVENT_INTERFACE_STATUS, &event);
417 static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv,
420 struct ifinfomsg *ifi;
421 int attrlen, _nlmsg_len, rta_len;
426 _nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
428 attrlen = h->nlmsg_len - _nlmsg_len;
432 attr = (struct rtattr *) (((char *) ifi) + _nlmsg_len);
434 rta_len = RTA_ALIGN(sizeof(struct rtattr));
435 while (RTA_OK(attr, attrlen)) {
436 if (attr->rta_type == IFLA_IFNAME) {
437 if (os_strcmp(((char *) attr) + rta_len, drv->ifname)
443 attr = RTA_NEXT(attr, attrlen);
450 static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv,
451 int ifindex, struct nlmsghdr *h)
453 if (drv->ifindex == ifindex)
456 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, h)) {
457 drv->ifindex = if_nametoindex(drv->ifname);
458 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed "
460 wpa_driver_nl80211_finish_drv_init(drv);
468 static void wpa_driver_nl80211_event_rtm_newlink(struct wpa_driver_nl80211_data *drv,
469 void *ctx, struct nlmsghdr *h,
472 struct ifinfomsg *ifi;
473 int attrlen, _nlmsg_len, rta_len;
474 struct rtattr * attr;
476 if (len < sizeof(*ifi))
481 if (!wpa_driver_nl80211_own_ifindex(drv, ifi->ifi_index, h)) {
482 wpa_printf(MSG_DEBUG, "Ignore event for foreign ifindex %d",
487 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x "
489 drv->operstate, ifi->ifi_flags,
490 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "",
491 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "",
492 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "",
493 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : "");
495 * Some drivers send the association event before the operup event--in
496 * this case, lifting operstate in wpa_driver_nl80211_set_operstate()
497 * fails. This will hit us when wpa_supplicant does not need to do
498 * IEEE 802.1X authentication
500 if (drv->operstate == 1 &&
501 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP &&
502 !(ifi->ifi_flags & IFF_RUNNING))
503 wpa_driver_nl80211_send_oper_ifla(drv, -1, IF_OPER_UP);
505 _nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
507 attrlen = h->nlmsg_len - _nlmsg_len;
511 attr = (struct rtattr *) (((char *) ifi) + _nlmsg_len);
513 rta_len = RTA_ALIGN(sizeof(struct rtattr));
514 while (RTA_OK(attr, attrlen)) {
515 if (attr->rta_type == IFLA_IFNAME) {
516 wpa_driver_nl80211_event_link(
518 ((char *) attr) + rta_len,
519 attr->rta_len - rta_len, 0);
521 attr = RTA_NEXT(attr, attrlen);
526 static void wpa_driver_nl80211_event_rtm_dellink(struct wpa_driver_nl80211_data *drv,
527 void *ctx, struct nlmsghdr *h,
530 struct ifinfomsg *ifi;
531 int attrlen, _nlmsg_len, rta_len;
532 struct rtattr * attr;
534 if (len < sizeof(*ifi))
539 _nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
541 attrlen = h->nlmsg_len - _nlmsg_len;
545 attr = (struct rtattr *) (((char *) ifi) + _nlmsg_len);
547 rta_len = RTA_ALIGN(sizeof(struct rtattr));
548 while (RTA_OK(attr, attrlen)) {
549 if (attr->rta_type == IFLA_IFNAME) {
550 wpa_driver_nl80211_event_link(
552 ((char *) attr) + rta_len,
553 attr->rta_len - rta_len, 1);
555 attr = RTA_NEXT(attr, attrlen);
560 static void wpa_driver_nl80211_event_receive_link(int sock, void *eloop_ctx,
565 struct sockaddr_nl from;
571 fromlen = sizeof(from);
572 left = recvfrom(sock, buf, sizeof(buf), MSG_DONTWAIT,
573 (struct sockaddr *) &from, &fromlen);
575 if (errno != EINTR && errno != EAGAIN)
576 perror("recvfrom(netlink)");
580 h = (struct nlmsghdr *) buf;
581 while (left >= (int) sizeof(*h)) {
585 plen = len - sizeof(*h);
586 if (len > left || plen < 0) {
587 wpa_printf(MSG_DEBUG, "Malformed netlink message: "
588 "len=%d left=%d plen=%d",
593 switch (h->nlmsg_type) {
595 wpa_driver_nl80211_event_rtm_newlink(eloop_ctx, sock_ctx,
599 wpa_driver_nl80211_event_rtm_dellink(eloop_ctx, sock_ctx,
604 len = NLMSG_ALIGN(len);
606 h = (struct nlmsghdr *) ((char *) h + len);
610 wpa_printf(MSG_DEBUG, "%d extra bytes in the end of netlink "
614 if (--max_events > 0) {
616 * Try to receive all events in one eloop call in order to
617 * limit race condition on cases where AssocInfo event, Assoc
618 * event, and EAPOL frames are received more or less at the
619 * same time. We want to process the event messages first
620 * before starting EAPOL processing.
627 static void mlme_event_auth(struct wpa_driver_nl80211_data *drv,
628 const u8 *frame, size_t len)
630 const struct ieee80211_mgmt *mgmt;
631 union wpa_event_data event;
633 mgmt = (const struct ieee80211_mgmt *) frame;
634 if (len < 24 + sizeof(mgmt->u.auth)) {
635 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
640 os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN);
641 os_memset(&event, 0, sizeof(event));
642 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN);
643 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg);
644 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code);
645 if (len > 24 + sizeof(mgmt->u.auth)) {
646 event.auth.ies = mgmt->u.auth.variable;
647 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth);
650 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event);
654 static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv,
655 const u8 *frame, size_t len)
657 const struct ieee80211_mgmt *mgmt;
658 union wpa_event_data event;
661 mgmt = (const struct ieee80211_mgmt *) frame;
662 if (len < 24 + sizeof(mgmt->u.assoc_resp)) {
663 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
668 status = le_to_host16(mgmt->u.assoc_resp.status_code);
669 if (status != WLAN_STATUS_SUCCESS) {
670 os_memset(&event, 0, sizeof(event));
671 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
672 event.assoc_reject.resp_ies =
673 (u8 *) mgmt->u.assoc_resp.variable;
674 event.assoc_reject.resp_ies_len =
675 len - 24 - sizeof(mgmt->u.assoc_resp);
677 event.assoc_reject.status_code = status;
679 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
684 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN);
686 os_memset(&event, 0, sizeof(event));
687 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
688 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable;
689 event.assoc_info.resp_ies_len =
690 len - 24 - sizeof(mgmt->u.assoc_resp);
693 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
697 static void mlme_event_connect(struct wpa_driver_nl80211_data *drv,
698 enum nl80211_commands cmd, struct nlattr *status,
699 struct nlattr *addr, struct nlattr *req_ie,
700 struct nlattr *resp_ie)
702 union wpa_event_data event;
704 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
706 * Avoid reporting two association events that would confuse
709 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) "
710 "when using userspace SME", cmd);
714 os_memset(&event, 0, sizeof(event));
715 if (cmd == NL80211_CMD_CONNECT &&
716 nla_get_u16(status) != WLAN_STATUS_SUCCESS) {
718 event.assoc_reject.resp_ies = nla_data(resp_ie);
719 event.assoc_reject.resp_ies_len = nla_len(resp_ie);
721 event.assoc_reject.status_code = nla_get_u16(status);
722 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
728 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN);
731 event.assoc_info.req_ies = nla_data(req_ie);
732 event.assoc_info.req_ies_len = nla_len(req_ie);
735 event.assoc_info.resp_ies = nla_data(resp_ie);
736 event.assoc_info.resp_ies_len = nla_len(resp_ie);
739 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
743 static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv,
744 enum nl80211_commands cmd, struct nlattr *addr)
746 union wpa_event_data event;
747 enum wpa_event_type ev;
749 if (nla_len(addr) != ETH_ALEN)
752 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR,
753 cmd, MAC2STR((u8 *) nla_data(addr)));
755 if (cmd == NL80211_CMD_AUTHENTICATE)
756 ev = EVENT_AUTH_TIMED_OUT;
757 else if (cmd == NL80211_CMD_ASSOCIATE)
758 ev = EVENT_ASSOC_TIMED_OUT;
762 os_memset(&event, 0, sizeof(event));
763 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN);
764 wpa_supplicant_event(drv->ctx, ev, &event);
768 static void mlme_event(struct wpa_driver_nl80211_data *drv,
769 enum nl80211_commands cmd, struct nlattr *frame,
770 struct nlattr *addr, struct nlattr *timed_out)
772 if (timed_out && addr) {
773 mlme_timeout_event(drv, cmd, addr);
778 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d without frame "
783 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d", cmd);
784 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame",
785 nla_data(frame), nla_len(frame));
788 case NL80211_CMD_AUTHENTICATE:
789 mlme_event_auth(drv, nla_data(frame), nla_len(frame));
791 case NL80211_CMD_ASSOCIATE:
792 mlme_event_assoc(drv, nla_data(frame), nla_len(frame));
794 case NL80211_CMD_DEAUTHENTICATE:
796 wpa_supplicant_event(drv->ctx, EVENT_DEAUTH, NULL);
798 case NL80211_CMD_DISASSOCIATE:
800 wpa_supplicant_event(drv->ctx, EVENT_DISASSOC, NULL);
808 static void mlme_event_michael_mic_failure(struct wpa_driver_nl80211_data *drv,
811 union wpa_event_data data;
813 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure");
814 os_memset(&data, 0, sizeof(data));
815 if (tb[NL80211_ATTR_MAC]) {
816 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address",
817 nla_data(tb[NL80211_ATTR_MAC]),
818 nla_len(tb[NL80211_ATTR_MAC]));
819 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]);
821 if (tb[NL80211_ATTR_KEY_SEQ]) {
822 wpa_hexdump(MSG_DEBUG, "nl80211: TSC",
823 nla_data(tb[NL80211_ATTR_KEY_SEQ]),
824 nla_len(tb[NL80211_ATTR_KEY_SEQ]));
826 if (tb[NL80211_ATTR_KEY_TYPE]) {
827 enum nl80211_key_type key_type =
828 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]);
829 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type);
830 if (key_type == NL80211_KEYTYPE_PAIRWISE)
831 data.michael_mic_failure.unicast = 1;
833 data.michael_mic_failure.unicast = 1;
835 if (tb[NL80211_ATTR_KEY_IDX]) {
836 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]);
837 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id);
840 wpa_supplicant_event(drv->ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
844 static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv,
847 if (tb[NL80211_ATTR_MAC] == NULL) {
848 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined "
852 os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
854 wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined",
855 MAC2STR(drv->bssid));
857 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL);
861 static int process_event(struct nl_msg *msg, void *arg)
863 struct wpa_driver_nl80211_data *drv = arg;
864 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
865 struct nlattr *tb[NL80211_ATTR_MAX + 1];
867 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
868 genlmsg_attrlen(gnlh, 0), NULL);
870 if (tb[NL80211_ATTR_IFINDEX]) {
871 int ifindex = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
872 if (ifindex != drv->ifindex) {
873 wpa_printf(MSG_DEBUG, "nl80211: Ignored event (cmd=%d)"
874 " for foreign interface (ifindex %d)",
880 if (drv->ap_scan_as_station &&
881 (gnlh->cmd == NL80211_CMD_NEW_SCAN_RESULTS ||
882 gnlh->cmd == NL80211_CMD_SCAN_ABORTED)) {
883 wpa_driver_nl80211_set_mode(drv, IEEE80211_MODE_AP);
884 drv->ap_scan_as_station = 0;
888 case NL80211_CMD_TRIGGER_SCAN:
889 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger");
891 case NL80211_CMD_NEW_SCAN_RESULTS:
892 wpa_printf(MSG_DEBUG, "nl80211: New scan results available");
893 drv->scan_complete_events = 1;
894 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
896 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, NULL);
898 case NL80211_CMD_SCAN_ABORTED:
899 wpa_printf(MSG_DEBUG, "nl80211: Scan aborted");
901 * Need to indicate that scan results are available in order
902 * not to make wpa_supplicant stop its scanning.
904 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
906 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, NULL);
908 case NL80211_CMD_AUTHENTICATE:
909 case NL80211_CMD_ASSOCIATE:
910 case NL80211_CMD_DEAUTHENTICATE:
911 case NL80211_CMD_DISASSOCIATE:
912 mlme_event(drv, gnlh->cmd, tb[NL80211_ATTR_FRAME],
913 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT]);
915 case NL80211_CMD_CONNECT:
916 case NL80211_CMD_ROAM:
917 mlme_event_connect(drv, gnlh->cmd,
918 tb[NL80211_ATTR_STATUS_CODE],
919 tb[NL80211_ATTR_MAC],
920 tb[NL80211_ATTR_REQ_IE],
921 tb[NL80211_ATTR_RESP_IE]);
923 case NL80211_CMD_DISCONNECT:
924 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
926 * Avoid reporting two disassociation events that could
927 * confuse the core code.
929 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect "
930 "event when using userspace SME");
934 wpa_supplicant_event(drv->ctx, EVENT_DISASSOC, NULL);
936 case NL80211_CMD_MICHAEL_MIC_FAILURE:
937 mlme_event_michael_mic_failure(drv, tb);
939 case NL80211_CMD_JOIN_IBSS:
940 mlme_event_join_ibss(drv, tb);
943 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event "
944 "(cmd=%d)", gnlh->cmd);
952 static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx,
956 struct wpa_driver_nl80211_data *drv = eloop_ctx;
958 wpa_printf(MSG_DEBUG, "nl80211: Event message available");
960 cb = nl_cb_clone(drv->nl_cb);
963 nl_cb_set(cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL);
964 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, process_event, drv);
965 nl_recvmsgs(drv->nl_handle_event, cb);
970 static int hostapd_set_iface_flags(struct wpa_driver_nl80211_data *drv,
971 const char *ifname, int dev_up)
975 if (drv->ioctl_sock < 0)
978 os_memset(&ifr, 0, sizeof(ifr));
979 os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
981 if (ioctl(drv->ioctl_sock, SIOCGIFFLAGS, &ifr) != 0) {
982 perror("ioctl[SIOCGIFFLAGS]");
983 wpa_printf(MSG_DEBUG, "Could not read interface flags (%s)",
989 if (ifr.ifr_flags & IFF_UP)
991 ifr.ifr_flags |= IFF_UP;
993 if (!(ifr.ifr_flags & IFF_UP))
995 ifr.ifr_flags &= ~IFF_UP;
998 if (ioctl(drv->ioctl_sock, SIOCSIFFLAGS, &ifr) != 0) {
999 perror("ioctl[SIOCSIFFLAGS]");
1008 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain
1009 * @priv: driver_nl80211 private data
1010 * @alpha2_arg: country to which to switch to
1011 * Returns: 0 on success, -1 on failure
1013 * This asks nl80211 to set the regulatory domain for given
1014 * country ISO / IEC alpha2.
1016 static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg)
1018 struct wpa_driver_nl80211_data *drv = priv;
1022 msg = nlmsg_alloc();
1026 alpha2[0] = alpha2_arg[0];
1027 alpha2[1] = alpha2_arg[1];
1030 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1031 0, NL80211_CMD_REQ_SET_REG, 0);
1033 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2);
1034 if (send_and_recv_msgs(drv, msg, NULL, NULL))
1043 struct wiphy_info_data {
1047 int connect_supported;
1051 static int wiphy_info_handler(struct nl_msg *msg, void *arg)
1053 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1054 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1055 struct wiphy_info_data *info = arg;
1057 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1058 genlmsg_attrlen(gnlh, 0), NULL);
1060 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS])
1061 info->max_scan_ssids =
1062 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]);
1064 if (tb[NL80211_ATTR_SUPPORTED_IFTYPES]) {
1065 struct nlattr *nl_mode;
1067 nla_for_each_nested(nl_mode,
1068 tb[NL80211_ATTR_SUPPORTED_IFTYPES], i) {
1069 if (nl_mode->nla_type == NL80211_IFTYPE_AP) {
1070 info->ap_supported = 1;
1076 if (tb[NL80211_ATTR_SUPPORTED_COMMANDS]) {
1077 struct nlattr *nl_cmd;
1080 nla_for_each_nested(nl_cmd,
1081 tb[NL80211_ATTR_SUPPORTED_COMMANDS], i) {
1082 u32 cmd = nla_get_u32(nl_cmd);
1083 if (cmd == NL80211_CMD_AUTHENTICATE)
1084 info->auth_supported = 1;
1085 else if (cmd == NL80211_CMD_CONNECT)
1086 info->connect_supported = 1;
1094 static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv,
1095 struct wiphy_info_data *info)
1099 os_memset(info, 0, sizeof(*info));
1100 msg = nlmsg_alloc();
1104 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1105 0, NL80211_CMD_GET_WIPHY, 0);
1107 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1109 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info) == 0)
1118 static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
1120 struct wiphy_info_data info;
1121 if (wpa_driver_nl80211_get_info(drv, &info))
1123 drv->has_capability = 1;
1124 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */
1125 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
1126 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
1127 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
1128 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
1129 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 |
1130 WPA_DRIVER_CAPA_ENC_WEP104 |
1131 WPA_DRIVER_CAPA_ENC_TKIP |
1132 WPA_DRIVER_CAPA_ENC_CCMP;
1134 drv->capa.max_scan_ssids = info.max_scan_ssids;
1135 if (info.ap_supported)
1136 drv->capa.flags |= WPA_DRIVER_FLAGS_AP;
1138 if (info.auth_supported)
1139 drv->capa.flags |= WPA_DRIVER_FLAGS_SME;
1140 else if (!info.connect_supported) {
1141 wpa_printf(MSG_INFO, "nl80211: Driver does not support "
1142 "authentication/association or connect commands");
1146 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE;
1150 #endif /* HOSTAPD */
1153 static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv,
1158 /* Initialize generic netlink and nl80211 */
1160 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
1161 if (drv->nl_cb == NULL) {
1162 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
1167 drv->nl_handle = nl_handle_alloc_cb(drv->nl_cb);
1168 if (drv->nl_handle == NULL) {
1169 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
1174 drv->nl_handle_event = nl_handle_alloc_cb(drv->nl_cb);
1175 if (drv->nl_handle_event == NULL) {
1176 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
1177 "callbacks (event)");
1181 if (genl_connect(drv->nl_handle)) {
1182 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
1187 if (genl_connect(drv->nl_handle_event)) {
1188 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
1193 #ifdef CONFIG_LIBNL20
1194 if (genl_ctrl_alloc_cache(drv->nl_handle, &drv->nl_cache) < 0) {
1195 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1199 if (genl_ctrl_alloc_cache(drv->nl_handle_event, &drv->nl_cache_event) <
1201 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1202 "netlink cache (event)");
1205 #else /* CONFIG_LIBNL20 */
1206 drv->nl_cache = genl_ctrl_alloc_cache(drv->nl_handle);
1207 if (drv->nl_cache == NULL) {
1208 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1212 drv->nl_cache_event = genl_ctrl_alloc_cache(drv->nl_handle_event);
1213 if (drv->nl_cache_event == NULL) {
1214 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1215 "netlink cache (event)");
1218 #endif /* CONFIG_LIBNL20 */
1220 drv->nl80211 = genl_ctrl_search_by_name(drv->nl_cache, "nl80211");
1221 if (drv->nl80211 == NULL) {
1222 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not "
1227 ret = nl_get_multicast_id(drv, "nl80211", "scan");
1229 ret = nl_socket_add_membership(drv->nl_handle_event, ret);
1231 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
1232 "membership for scan events: %d (%s)",
1233 ret, strerror(-ret));
1237 ret = nl_get_multicast_id(drv, "nl80211", "mlme");
1239 ret = nl_socket_add_membership(drv->nl_handle_event, ret);
1241 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
1242 "membership for mlme events: %d (%s)",
1243 ret, strerror(-ret));
1247 eloop_register_read_sock(nl_socket_get_fd(drv->nl_handle_event),
1248 wpa_driver_nl80211_event_receive, drv, ctx);
1253 nl_cache_free(drv->nl_cache_event);
1255 nl_cache_free(drv->nl_cache);
1257 nl_handle_destroy(drv->nl_handle_event);
1259 nl_handle_destroy(drv->nl_handle);
1261 nl_cb_put(drv->nl_cb);
1267 static int wpa_driver_nl80211_init_link_events(
1268 struct wpa_driver_nl80211_data *drv)
1271 struct sockaddr_nl local;
1273 s = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
1275 perror("socket(PF_NETLINK,SOCK_RAW,NETLINK_ROUTE)");
1279 os_memset(&local, 0, sizeof(local));
1280 local.nl_family = AF_NETLINK;
1281 local.nl_groups = RTMGRP_LINK;
1282 if (bind(s, (struct sockaddr *) &local, sizeof(local)) < 0) {
1283 perror("bind(netlink)");
1288 eloop_register_read_sock(s, wpa_driver_nl80211_event_receive_link, drv,
1290 drv->link_event_sock = s;
1297 * wpa_driver_nl80211_init - Initialize nl80211 driver interface
1298 * @ctx: context to be used when calling wpa_supplicant functions,
1299 * e.g., wpa_supplicant_event()
1300 * @ifname: interface name, e.g., wlan0
1301 * Returns: Pointer to private data, %NULL on failure
1303 static void * wpa_driver_nl80211_init(void *ctx, const char *ifname)
1305 struct wpa_driver_nl80211_data *drv;
1307 drv = os_zalloc(sizeof(*drv));
1311 os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
1312 drv->monitor_ifidx = -1;
1313 drv->monitor_sock = -1;
1314 drv->link_event_sock = -1;
1315 drv->ioctl_sock = -1;
1317 if (wpa_driver_nl80211_init_nl(drv, ctx)) {
1322 drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
1323 if (drv->ioctl_sock < 0) {
1324 perror("socket(PF_INET,SOCK_DGRAM)");
1328 if (wpa_driver_nl80211_init_link_events(drv) ||
1329 wpa_driver_nl80211_finish_drv_init(drv))
1335 if (drv->link_event_sock >= 0) {
1336 eloop_unregister_read_sock(drv->link_event_sock);
1337 close(drv->link_event_sock);
1339 if (drv->ioctl_sock >= 0)
1340 close(drv->ioctl_sock);
1342 genl_family_put(drv->nl80211);
1343 nl_cache_free(drv->nl_cache);
1344 nl_handle_destroy(drv->nl_handle);
1345 nl_cb_put(drv->nl_cb);
1353 wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv)
1355 drv->ifindex = if_nametoindex(drv->ifname);
1358 if (wpa_driver_nl80211_set_mode(drv, IEEE80211_MODE_INFRA) < 0) {
1359 wpa_printf(MSG_DEBUG, "nl80211: Could not configure driver to "
1360 "use managed mode");
1363 if (hostapd_set_iface_flags(drv, drv->ifname, 1)) {
1364 wpa_printf(MSG_ERROR, "Could not set interface '%s' "
1369 if (wpa_driver_nl80211_capa(drv))
1372 wpa_driver_nl80211_send_oper_ifla(drv, 1, IF_OPER_DORMANT);
1373 #endif /* HOSTAPD */
1380 static void wpa_driver_nl80211_free_bss(struct wpa_driver_nl80211_data *drv)
1382 struct i802_bss *bss, *prev;
1383 bss = drv->bss.next;
1390 #endif /* HOSTAPD */
1393 static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv)
1397 msg = nlmsg_alloc();
1401 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1402 0, NL80211_CMD_DEL_BEACON, 0);
1403 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1405 return send_and_recv_msgs(drv, msg, NULL, NULL);
1412 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface
1413 * @priv: Pointer to private nl80211 data from wpa_driver_nl80211_init()
1415 * Shut down driver interface and processing of driver events. Free
1416 * private data buffer if one was allocated in wpa_driver_nl80211_init().
1418 static void wpa_driver_nl80211_deinit(void *priv)
1420 struct wpa_driver_nl80211_data *drv = priv;
1422 nl80211_remove_monitor_interface(drv);
1423 if (drv->monitor_sock >= 0) {
1424 eloop_unregister_read_sock(drv->monitor_sock);
1425 close(drv->monitor_sock);
1428 if (drv->nlmode == NL80211_IFTYPE_AP)
1429 wpa_driver_nl80211_del_beacon(drv);
1432 if (drv->last_freq_ht) {
1433 /* Clear HT flags from the driver */
1434 struct hostapd_freq_params freq;
1435 os_memset(&freq, 0, sizeof(freq));
1436 freq.freq = drv->last_freq;
1437 i802_set_freq(priv, &freq);
1440 if (drv->eapol_sock >= 0) {
1441 eloop_unregister_read_sock(drv->eapol_sock);
1442 close(drv->eapol_sock);
1445 if (drv->if_indices != drv->default_if_indices)
1446 os_free(drv->if_indices);
1448 wpa_driver_nl80211_free_bss(drv);
1449 #endif /* HOSTAPD */
1451 wpa_driver_nl80211_send_oper_ifla(priv, 0, IF_OPER_UP);
1453 if (drv->link_event_sock >= 0) {
1454 eloop_unregister_read_sock(drv->link_event_sock);
1455 close(drv->link_event_sock);
1458 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
1460 (void) hostapd_set_iface_flags(drv, drv->ifname, 0);
1461 wpa_driver_nl80211_set_mode(drv, IEEE80211_MODE_INFRA);
1463 if (drv->ioctl_sock >= 0)
1464 close(drv->ioctl_sock);
1466 eloop_unregister_read_sock(nl_socket_get_fd(drv->nl_handle_event));
1467 genl_family_put(drv->nl80211);
1468 nl_cache_free(drv->nl_cache);
1469 nl_cache_free(drv->nl_cache_event);
1470 nl_handle_destroy(drv->nl_handle);
1471 nl_handle_destroy(drv->nl_handle_event);
1472 nl_cb_put(drv->nl_cb);
1479 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion
1480 * @eloop_ctx: Driver private data
1481 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init()
1483 * This function can be used as registered timeout when starting a scan to
1484 * generate a scan completed event if the driver does not report this.
1486 static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx)
1488 struct wpa_driver_nl80211_data *drv = eloop_ctx;
1489 if (drv->ap_scan_as_station) {
1490 wpa_driver_nl80211_set_mode(drv, IEEE80211_MODE_AP);
1491 drv->ap_scan_as_station = 0;
1493 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results");
1494 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL);
1499 * wpa_driver_nl80211_scan - Request the driver to initiate scan
1500 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
1501 * @params: Scan parameters
1502 * Returns: 0 on success, -1 on failure
1504 static int wpa_driver_nl80211_scan(void *priv,
1505 struct wpa_driver_scan_params *params)
1507 struct wpa_driver_nl80211_data *drv = priv;
1508 int ret = 0, timeout;
1509 struct nl_msg *msg, *ssids, *freqs;
1512 msg = nlmsg_alloc();
1513 ssids = nlmsg_alloc();
1514 freqs = nlmsg_alloc();
1515 if (!msg || !ssids || !freqs) {
1522 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
1523 NL80211_CMD_TRIGGER_SCAN, 0);
1525 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1527 for (i = 0; i < params->num_ssids; i++) {
1528 NLA_PUT(ssids, i + 1, params->ssids[i].ssid_len,
1529 params->ssids[i].ssid);
1531 if (params->num_ssids)
1532 nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids);
1534 if (params->extra_ies) {
1535 NLA_PUT(msg, NL80211_ATTR_IE, params->extra_ies_len,
1539 if (params->freqs) {
1540 for (i = 0; params->freqs[i]; i++)
1541 NLA_PUT_U32(freqs, i + 1, params->freqs[i]);
1542 nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES, freqs);
1545 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
1548 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d "
1549 "(%s)", ret, strerror(-ret));
1551 if (drv->nlmode == NL80211_IFTYPE_AP) {
1553 * mac80211 does not allow scan requests in AP mode, so
1554 * try to do this in station mode.
1556 if (wpa_driver_nl80211_set_mode(drv,
1557 IEEE80211_MODE_INFRA))
1558 goto nla_put_failure;
1560 if (wpa_driver_nl80211_scan(drv, params)) {
1561 wpa_driver_nl80211_set_mode(drv,
1563 goto nla_put_failure;
1566 /* Restore AP mode when processing scan results */
1567 drv->ap_scan_as_station = 1;
1570 goto nla_put_failure;
1572 goto nla_put_failure;
1573 #endif /* HOSTAPD */
1576 /* Not all drivers generate "scan completed" wireless event, so try to
1577 * read results after a timeout. */
1579 if (drv->scan_complete_events) {
1581 * The driver seems to deliver events to notify when scan is
1582 * complete, so use longer timeout to avoid race conditions
1583 * with scanning and following association request.
1587 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d "
1588 "seconds", ret, timeout);
1589 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
1590 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout,
1601 static int bss_info_handler(struct nl_msg *msg, void *arg)
1603 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1604 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1605 struct nlattr *bss[NL80211_BSS_MAX + 1];
1606 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
1607 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC },
1608 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 },
1609 [NL80211_BSS_TSF] = { .type = NLA_U64 },
1610 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 },
1611 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 },
1612 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC },
1613 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 },
1614 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 },
1615 [NL80211_BSS_STATUS] = { .type = NLA_U32 },
1616 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 },
1618 struct wpa_scan_results *res = arg;
1619 struct wpa_scan_res **tmp;
1620 struct wpa_scan_res *r;
1624 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1625 genlmsg_attrlen(gnlh, 0), NULL);
1626 if (!tb[NL80211_ATTR_BSS])
1628 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS],
1631 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) {
1632 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
1633 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
1639 r = os_zalloc(sizeof(*r) + ie_len);
1642 if (bss[NL80211_BSS_BSSID])
1643 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]),
1645 if (bss[NL80211_BSS_FREQUENCY])
1646 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
1647 if (bss[NL80211_BSS_BEACON_INTERVAL])
1648 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]);
1649 if (bss[NL80211_BSS_CAPABILITY])
1650 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]);
1651 r->flags |= WPA_SCAN_NOISE_INVALID;
1652 if (bss[NL80211_BSS_SIGNAL_MBM]) {
1653 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]);
1654 r->level /= 100; /* mBm to dBm */
1655 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID;
1656 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) {
1657 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]);
1658 r->flags |= WPA_SCAN_LEVEL_INVALID;
1660 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID;
1661 if (bss[NL80211_BSS_TSF])
1662 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]);
1663 if (bss[NL80211_BSS_SEEN_MS_AGO])
1664 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]);
1667 os_memcpy(r + 1, ie, ie_len);
1669 if (bss[NL80211_BSS_STATUS]) {
1670 enum nl80211_bss_status status;
1671 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
1673 case NL80211_BSS_STATUS_AUTHENTICATED:
1674 r->flags |= WPA_SCAN_AUTHENTICATED;
1676 case NL80211_BSS_STATUS_ASSOCIATED:
1677 r->flags |= WPA_SCAN_ASSOCIATED;
1684 tmp = os_realloc(res->res,
1685 (res->num + 1) * sizeof(struct wpa_scan_res *));
1690 tmp[res->num++] = r;
1697 static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv,
1700 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
1701 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state "
1703 wpa_driver_nl80211_mlme(drv, addr,
1704 NL80211_CMD_DEAUTHENTICATE,
1705 WLAN_REASON_PREV_AUTH_NOT_VALID);
1710 static void wpa_driver_nl80211_check_bss_status(
1711 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res)
1715 for (i = 0; i < res->num; i++) {
1716 struct wpa_scan_res *r = res->res[i];
1717 if (r->flags & WPA_SCAN_AUTHENTICATED) {
1718 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
1719 "indicates BSS status with " MACSTR
1720 " as authenticated",
1722 if (drv->nlmode == NL80211_IFTYPE_STATION &&
1723 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 &&
1724 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) !=
1726 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID"
1727 " in local state (auth=" MACSTR
1728 " assoc=" MACSTR ")",
1729 MAC2STR(drv->auth_bssid),
1730 MAC2STR(drv->bssid));
1734 if (r->flags & WPA_SCAN_ASSOCIATED) {
1735 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
1736 "indicate BSS status with " MACSTR
1739 if (drv->nlmode == NL80211_IFTYPE_STATION &&
1741 wpa_printf(MSG_DEBUG, "nl80211: Local state "
1742 "(not associated) does not match "
1744 clear_state_mismatch(drv, r->bssid);
1745 } else if (drv->nlmode == NL80211_IFTYPE_STATION &&
1746 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) !=
1748 wpa_printf(MSG_DEBUG, "nl80211: Local state "
1749 "(associated with " MACSTR ") does "
1750 "not match with BSS state",
1751 MAC2STR(drv->bssid));
1752 clear_state_mismatch(drv, r->bssid);
1753 clear_state_mismatch(drv, drv->bssid);
1761 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results
1762 * @priv: Pointer to private wext data from wpa_driver_nl80211_init()
1763 * Returns: Scan results on success, -1 on failure
1765 static struct wpa_scan_results *
1766 wpa_driver_nl80211_get_scan_results(void *priv)
1768 struct wpa_driver_nl80211_data *drv = priv;
1770 struct wpa_scan_results *res;
1773 res = os_zalloc(sizeof(*res));
1776 msg = nlmsg_alloc();
1778 goto nla_put_failure;
1780 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, NLM_F_DUMP,
1781 NL80211_CMD_GET_SCAN, 0);
1782 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1784 ret = send_and_recv_msgs(drv, msg, bss_info_handler, res);
1787 wpa_printf(MSG_DEBUG, "Received scan results (%lu BSSes)",
1788 (unsigned long) res->num);
1789 wpa_driver_nl80211_check_bss_status(drv, res);
1792 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
1793 "(%s)", ret, strerror(-ret));
1796 wpa_scan_results_free(res);
1801 static int wpa_driver_nl80211_set_key(const char *ifname, void *priv,
1802 wpa_alg alg, const u8 *addr, int key_idx,
1804 const u8 *seq, size_t seq_len,
1805 const u8 *key, size_t key_len)
1807 struct wpa_driver_nl80211_data *drv = priv;
1808 int ifindex = if_nametoindex(ifname);
1812 wpa_printf(MSG_DEBUG, "%s: ifindex=%d alg=%d addr=%p key_idx=%d "
1813 "set_tx=%d seq_len=%lu key_len=%lu",
1814 __func__, ifindex, alg, addr, key_idx, set_tx,
1815 (unsigned long) seq_len, (unsigned long) key_len);
1817 msg = nlmsg_alloc();
1821 if (alg == WPA_ALG_NONE) {
1822 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1823 0, NL80211_CMD_DEL_KEY, 0);
1825 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1826 0, NL80211_CMD_NEW_KEY, 0);
1827 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key);
1831 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
1832 WLAN_CIPHER_SUITE_WEP40);
1834 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
1835 WLAN_CIPHER_SUITE_WEP104);
1838 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
1839 WLAN_CIPHER_SUITE_TKIP);
1842 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
1843 WLAN_CIPHER_SUITE_CCMP);
1846 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
1847 WLAN_CIPHER_SUITE_AES_CMAC);
1850 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
1851 "algorithm %d", __func__, alg);
1858 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq);
1860 if (addr && os_memcmp(addr, "\xff\xff\xff\xff\xff\xff", ETH_ALEN) != 0)
1862 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr));
1863 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
1865 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1866 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
1868 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
1869 if (ret == -ENOENT && alg == WPA_ALG_NONE)
1872 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)",
1873 ret, strerror(-ret));
1876 * If we failed or don't need to set the default TX key (below),
1879 if (ret || !set_tx || alg == WPA_ALG_NONE)
1881 #ifdef HOSTAPD /* FIX: is this needed? */
1884 #endif /* HOSTAPD */
1886 msg = nlmsg_alloc();
1890 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1891 0, NL80211_CMD_SET_KEY, 0);
1892 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1893 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
1894 if (alg == WPA_ALG_IGTK)
1895 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT);
1897 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
1899 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
1903 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; "
1904 "err=%d %s)", ret, strerror(-ret));
1912 static int nl_add_key(struct nl_msg *msg, wpa_alg alg,
1913 int key_idx, int defkey,
1914 const u8 *seq, size_t seq_len,
1915 const u8 *key, size_t key_len)
1917 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY);
1921 if (defkey && alg == WPA_ALG_IGTK)
1922 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT);
1924 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
1926 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx);
1931 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
1932 WLAN_CIPHER_SUITE_WEP40);
1934 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
1935 WLAN_CIPHER_SUITE_WEP104);
1938 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP);
1941 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP);
1944 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
1945 WLAN_CIPHER_SUITE_AES_CMAC);
1948 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
1949 "algorithm %d", __func__, alg);
1954 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq);
1956 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key);
1958 nla_nest_end(msg, key_attr);
1966 static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params,
1970 struct nlattr *nl_keys, *nl_key;
1972 for (i = 0; i < 4; i++) {
1973 if (!params->wep_key[i])
1981 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
1983 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS);
1985 goto nla_put_failure;
1987 for (i = 0; i < 4; i++) {
1988 if (!params->wep_key[i])
1991 nl_key = nla_nest_start(msg, i);
1993 goto nla_put_failure;
1995 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i],
1996 params->wep_key[i]);
1997 if (params->wep_key_len[i] == 5)
1998 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
1999 WLAN_CIPHER_SUITE_WEP40);
2001 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
2002 WLAN_CIPHER_SUITE_WEP104);
2004 NLA_PUT_U8(msg, NL80211_KEY_IDX, i);
2006 if (i == params->wep_tx_keyidx)
2007 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
2009 nla_nest_end(msg, nl_key);
2011 nla_nest_end(msg, nl_keys);
2020 static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
2021 const u8 *addr, int cmd, u16 reason_code)
2026 msg = nlmsg_alloc();
2030 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0, cmd, 0);
2032 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2033 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code);
2034 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
2036 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2039 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
2040 "(%s)", ret, strerror(-ret));
2041 goto nla_put_failure;
2051 static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv,
2052 const u8 *addr, int reason_code)
2054 wpa_printf(MSG_DEBUG, "%s", __func__);
2055 drv->associated = 0;
2056 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISCONNECT,
2061 static int wpa_driver_nl80211_deauthenticate(void *priv, const u8 *addr,
2064 struct wpa_driver_nl80211_data *drv = priv;
2065 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
2066 return wpa_driver_nl80211_disconnect(drv, addr, reason_code);
2067 wpa_printf(MSG_DEBUG, "%s", __func__);
2068 drv->associated = 0;
2069 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE,
2074 static int wpa_driver_nl80211_disassociate(void *priv, const u8 *addr,
2077 struct wpa_driver_nl80211_data *drv = priv;
2078 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
2079 return wpa_driver_nl80211_disconnect(drv, addr, reason_code);
2080 wpa_printf(MSG_DEBUG, "%s", __func__);
2081 drv->associated = 0;
2082 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISASSOCIATE,
2087 static int wpa_driver_nl80211_authenticate(
2088 void *priv, struct wpa_driver_auth_params *params)
2090 struct wpa_driver_nl80211_data *drv = priv;
2093 enum nl80211_auth_type type;
2096 drv->associated = 0;
2097 os_memset(drv->auth_bssid, 0, ETH_ALEN);
2099 if (wpa_driver_nl80211_set_mode(drv, IEEE80211_MODE_INFRA) < 0)
2103 msg = nlmsg_alloc();
2107 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)",
2110 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
2111 NL80211_CMD_AUTHENTICATE, 0);
2113 for (i = 0; i < 4; i++) {
2114 if (!params->wep_key[i])
2116 wpa_driver_nl80211_set_key(drv->ifname, drv, WPA_ALG_WEP, NULL,
2118 i == params->wep_tx_keyidx, NULL, 0,
2120 params->wep_key_len[i]);
2121 if (params->wep_tx_keyidx != i)
2123 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0,
2124 params->wep_key[i], params->wep_key_len[i])) {
2130 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2131 if (params->bssid) {
2132 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
2133 MAC2STR(params->bssid));
2134 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
2137 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
2138 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
2141 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
2142 params->ssid, params->ssid_len);
2143 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
2146 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len);
2148 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie);
2150 * TODO: if multiple auth_alg options enabled, try them one by one if
2151 * the AP rejects authentication due to unknown auth alg
2153 if (params->auth_alg & AUTH_ALG_OPEN_SYSTEM)
2154 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2155 else if (params->auth_alg & AUTH_ALG_SHARED_KEY)
2156 type = NL80211_AUTHTYPE_SHARED_KEY;
2157 else if (params->auth_alg & AUTH_ALG_LEAP)
2158 type = NL80211_AUTHTYPE_NETWORK_EAP;
2159 else if (params->auth_alg & AUTH_ALG_FT)
2160 type = NL80211_AUTHTYPE_FT;
2162 goto nla_put_failure;
2163 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
2164 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
2166 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2169 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
2170 "(%s)", ret, strerror(-ret));
2172 if (ret == -EALREADY && count == 1 && params->bssid) {
2174 * mac80211 does not currently accept new
2175 * authentication if we are already authenticated. As a
2176 * workaround, force deauthentication and try again.
2178 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication "
2179 "after forced deauthentication");
2180 wpa_driver_nl80211_deauthenticate(
2182 WLAN_REASON_PREV_AUTH_NOT_VALID);
2186 goto nla_put_failure;
2189 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send "
2198 struct phy_info_arg {
2200 struct hostapd_hw_modes *modes;
2203 static int phy_info_handler(struct nl_msg *msg, void *arg)
2205 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
2206 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2207 struct phy_info_arg *phy_info = arg;
2209 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
2211 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
2212 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
2213 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
2214 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
2215 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG },
2216 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG },
2217 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
2218 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
2221 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
2222 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
2223 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
2224 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = { .type = NLA_FLAG },
2227 struct nlattr *nl_band;
2228 struct nlattr *nl_freq;
2229 struct nlattr *nl_rate;
2230 int rem_band, rem_freq, rem_rate;
2231 struct hostapd_hw_modes *mode;
2232 int idx, mode_is_set;
2234 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2235 genlmsg_attrlen(gnlh, 0), NULL);
2237 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
2240 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) {
2241 mode = realloc(phy_info->modes, (*phy_info->num_modes + 1) * sizeof(*mode));
2244 phy_info->modes = mode;
2248 mode = &phy_info->modes[*(phy_info->num_modes)];
2249 memset(mode, 0, sizeof(*mode));
2250 *(phy_info->num_modes) += 1;
2252 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
2253 nla_len(nl_band), NULL);
2255 if (tb_band[NL80211_BAND_ATTR_HT_CAPA]) {
2256 mode->ht_capab = nla_get_u16(
2257 tb_band[NL80211_BAND_ATTR_HT_CAPA]);
2260 if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) {
2261 mode->a_mpdu_params |= nla_get_u8(
2262 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) &
2266 if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) {
2267 mode->a_mpdu_params |= nla_get_u8(
2268 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) <<
2272 if (tb_band[NL80211_BAND_ATTR_HT_MCS_SET] &&
2273 nla_len(tb_band[NL80211_BAND_ATTR_HT_MCS_SET])) {
2275 mcs = nla_data(tb_band[NL80211_BAND_ATTR_HT_MCS_SET]);
2276 os_memcpy(mode->mcs_set, mcs, 16);
2279 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
2280 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
2281 nla_len(nl_freq), freq_policy);
2282 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
2284 mode->num_channels++;
2287 mode->channels = calloc(mode->num_channels, sizeof(struct hostapd_channel_data));
2288 if (!mode->channels)
2293 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
2294 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
2295 nla_len(nl_freq), freq_policy);
2296 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
2299 mode->channels[idx].freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
2300 mode->channels[idx].flag = 0;
2303 /* crude heuristic */
2304 if (mode->channels[idx].freq < 4000)
2305 mode->mode = HOSTAPD_MODE_IEEE80211B;
2307 mode->mode = HOSTAPD_MODE_IEEE80211A;
2311 /* crude heuristic */
2312 if (mode->channels[idx].freq < 4000)
2313 if (mode->channels[idx].freq == 2484)
2314 mode->channels[idx].chan = 14;
2316 mode->channels[idx].chan = (mode->channels[idx].freq - 2407) / 5;
2318 mode->channels[idx].chan = mode->channels[idx].freq/5 - 1000;
2320 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
2321 mode->channels[idx].flag |=
2322 HOSTAPD_CHAN_DISABLED;
2323 if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
2324 mode->channels[idx].flag |=
2325 HOSTAPD_CHAN_PASSIVE_SCAN;
2326 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS])
2327 mode->channels[idx].flag |=
2328 HOSTAPD_CHAN_NO_IBSS;
2329 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
2330 mode->channels[idx].flag |=
2333 if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] &&
2334 !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
2335 mode->channels[idx].max_tx_power =
2336 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100;
2341 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
2342 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
2343 nla_len(nl_rate), rate_policy);
2344 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
2349 mode->rates = calloc(mode->num_rates, sizeof(int));
2355 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
2356 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
2357 nla_len(nl_rate), rate_policy);
2358 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
2360 mode->rates[idx] = nla_get_u32(tb_rate[NL80211_BITRATE_ATTR_RATE]);
2362 /* crude heuristic */
2363 if (mode->mode == HOSTAPD_MODE_IEEE80211B &&
2364 mode->rates[idx] > 200)
2365 mode->mode = HOSTAPD_MODE_IEEE80211G;
2374 static struct hostapd_hw_modes *
2375 wpa_driver_nl80211_add_11b(struct hostapd_hw_modes *modes, u16 *num_modes)
2378 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
2379 int i, mode11g_idx = -1;
2381 /* If only 802.11g mode is included, use it to construct matching
2382 * 802.11b mode data. */
2384 for (m = 0; m < *num_modes; m++) {
2385 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
2386 return modes; /* 802.11b already included */
2387 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
2391 if (mode11g_idx < 0)
2392 return modes; /* 2.4 GHz band not supported at all */
2394 nmodes = os_realloc(modes, (*num_modes + 1) * sizeof(*nmodes));
2396 return modes; /* Could not add 802.11b mode */
2398 mode = &nmodes[*num_modes];
2399 os_memset(mode, 0, sizeof(*mode));
2403 mode->mode = HOSTAPD_MODE_IEEE80211B;
2405 mode11g = &modes[mode11g_idx];
2406 mode->num_channels = mode11g->num_channels;
2407 mode->channels = os_malloc(mode11g->num_channels *
2408 sizeof(struct hostapd_channel_data));
2409 if (mode->channels == NULL) {
2411 return modes; /* Could not add 802.11b mode */
2413 os_memcpy(mode->channels, mode11g->channels,
2414 mode11g->num_channels * sizeof(struct hostapd_channel_data));
2416 mode->num_rates = 0;
2417 mode->rates = os_malloc(4 * sizeof(int));
2418 if (mode->rates == NULL) {
2419 os_free(mode->channels);
2421 return modes; /* Could not add 802.11b mode */
2424 for (i = 0; i < mode11g->num_rates; i++) {
2425 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 &&
2426 mode11g->rates[i] != 55 && mode11g->rates[i] != 110)
2428 mode->rates[mode->num_rates] = mode11g->rates[i];
2430 if (mode->num_rates == 4)
2434 if (mode->num_rates == 0) {
2435 os_free(mode->channels);
2436 os_free(mode->rates);
2438 return modes; /* No 802.11b rates */
2441 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
2448 static struct hostapd_hw_modes *
2449 wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
2451 struct wpa_driver_nl80211_data *drv = priv;
2453 struct phy_info_arg result = {
2454 .num_modes = num_modes,
2461 msg = nlmsg_alloc();
2465 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2466 0, NL80211_CMD_GET_WIPHY, 0);
2468 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2470 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0)
2471 return wpa_driver_nl80211_add_11b(result.modes, num_modes);
2477 static int wpa_driver_nl80211_send_frame(struct wpa_driver_nl80211_data *drv,
2478 const void *data, size_t len,
2482 0x00, 0x00, /* radiotap version */
2483 0x0e, 0x00, /* radiotap length */
2484 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */
2485 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */
2487 0x00, 0x00, /* RX and TX flags to indicate that */
2488 0x00, 0x00, /* this is the injected frame directly */
2490 struct iovec iov[2] = {
2492 .iov_base = &rtap_hdr,
2493 .iov_len = sizeof(rtap_hdr),
2496 .iov_base = (void *) data,
2500 struct msghdr msg = {
2505 .msg_control = NULL,
2506 .msg_controllen = 0,
2511 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP;
2513 return sendmsg(drv->monitor_sock, &msg, 0);
2517 static int wpa_driver_nl80211_send_mlme(void *priv, const u8 *data,
2520 struct wpa_driver_nl80211_data *drv = priv;
2521 struct ieee80211_mgmt *mgmt;
2525 mgmt = (struct ieee80211_mgmt *) data;
2526 fc = le_to_host16(mgmt->frame_control);
2528 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
2529 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) {
2531 * Only one of the authentication frame types is encrypted.
2532 * In order for static WEP encryption to work properly (i.e.,
2533 * to not encrypt the frame), we need to tell mac80211 about
2534 * the frames that must not be encrypted.
2536 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
2537 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction);
2538 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3)
2542 return wpa_driver_nl80211_send_frame(drv, data, data_len, encrypt);
2546 static int wpa_driver_nl80211_set_beacon(const char *ifname, void *priv,
2547 const u8 *head, size_t head_len,
2548 const u8 *tail, size_t tail_len,
2549 int dtim_period, int beacon_int)
2551 struct wpa_driver_nl80211_data *drv = priv;
2553 u8 cmd = NL80211_CMD_NEW_BEACON;
2556 int ifindex = if_nametoindex(ifname);
2558 struct i802_bss *bss;
2560 bss = get_bss(drv, ifindex);
2563 beacon_set = bss->beacon_set;
2565 beacon_set = drv->beacon_set;
2566 #endif /* HOSTAPD */
2568 msg = nlmsg_alloc();
2572 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)",
2575 cmd = NL80211_CMD_SET_BEACON;
2577 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2579 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, head_len, head);
2580 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, tail_len, tail);
2581 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
2582 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, beacon_int);
2583 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, dtim_period);
2585 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2587 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)",
2588 ret, strerror(-ret));
2591 bss->beacon_set = 1;
2593 drv->beacon_set = 1;
2594 #endif /* HOSTAPD */
2602 static int wpa_driver_nl80211_set_freq(struct wpa_driver_nl80211_data *drv,
2603 int freq, int ht_enabled,
2604 int sec_channel_offset)
2609 msg = nlmsg_alloc();
2613 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
2614 NL80211_CMD_SET_WIPHY, 0);
2616 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2617 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
2619 switch (sec_channel_offset) {
2621 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2622 NL80211_CHAN_HT40MINUS);
2625 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2626 NL80211_CHAN_HT40PLUS);
2629 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2635 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2638 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): "
2639 "%d (%s)", freq, ret, strerror(-ret));
2645 static int wpa_driver_nl80211_sta_add(const char *ifname, void *priv,
2646 struct hostapd_sta_add_params *params)
2648 struct wpa_driver_nl80211_data *drv = priv;
2652 msg = nlmsg_alloc();
2656 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2657 0, NL80211_CMD_NEW_STATION, 0);
2659 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(ifname));
2660 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr);
2661 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid);
2662 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len,
2663 params->supp_rates);
2664 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL,
2665 params->listen_interval);
2666 if (params->ht_capabilities) {
2667 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY,
2668 sizeof(*params->ht_capabilities),
2669 params->ht_capabilities);
2672 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2674 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_NEW_STATION "
2675 "result: %d (%s)", ret, strerror(-ret));
2683 static int wpa_driver_nl80211_sta_remove(void *priv, const u8 *addr)
2685 struct wpa_driver_nl80211_data *drv = priv;
2689 msg = nlmsg_alloc();
2693 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2694 0, NL80211_CMD_DEL_STATION, 0);
2696 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
2697 if_nametoindex(drv->ifname));
2698 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
2700 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2709 static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
2715 /* stop listening for EAPOL on this interface */
2716 del_ifidx(drv, ifidx);
2717 #endif /* HOSTAPD */
2719 msg = nlmsg_alloc();
2721 goto nla_put_failure;
2723 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2724 0, NL80211_CMD_DEL_INTERFACE, 0);
2725 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx);
2727 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
2730 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d).\n",
2735 static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv,
2737 enum nl80211_iftype iftype,
2740 struct nl_msg *msg, *flags = NULL;
2744 msg = nlmsg_alloc();
2748 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2749 0, NL80211_CMD_NEW_INTERFACE, 0);
2750 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2751 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname);
2752 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype);
2754 if (iftype == NL80211_IFTYPE_MONITOR) {
2757 flags = nlmsg_alloc();
2759 goto nla_put_failure;
2761 NLA_PUT_FLAG(flags, NL80211_MNTR_FLAG_COOK_FRAMES);
2763 err = nla_put_nested(msg, NL80211_ATTR_MNTR_FLAGS, flags);
2768 goto nla_put_failure;
2771 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2774 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)",
2775 ifname, ret, strerror(-ret));
2779 ifidx = if_nametoindex(ifname);
2785 /* start listening for EAPOL on this interface */
2786 add_ifidx(drv, ifidx);
2788 if (addr && iftype == NL80211_IFTYPE_AP &&
2789 set_ifhwaddr(drv, ifname, addr)) {
2790 nl80211_remove_iface(drv, ifidx);
2793 #endif /* HOSTAPD */
2799 static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
2800 const char *ifname, enum nl80211_iftype iftype,
2805 ret = nl80211_create_iface_once(drv, ifname, iftype, addr);
2807 /* if error occured and interface exists already */
2808 if (ret == -ENFILE && if_nametoindex(ifname)) {
2809 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname);
2811 /* Try to remove the interface that was already there. */
2812 nl80211_remove_iface(drv, if_nametoindex(ifname));
2814 /* Try to create the interface again */
2815 ret = nl80211_create_iface_once(drv, ifname, iftype, addr);
2822 static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok)
2824 struct ieee80211_hdr *hdr;
2826 union wpa_event_data event;
2828 hdr = (struct ieee80211_hdr *) buf;
2829 fc = le_to_host16(hdr->frame_control);
2831 os_memset(&event, 0, sizeof(event));
2832 event.tx_status.type = WLAN_FC_GET_TYPE(fc);
2833 event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
2834 event.tx_status.dst = hdr->addr1;
2835 event.tx_status.data = buf;
2836 event.tx_status.data_len = len;
2837 event.tx_status.ack = ok;
2838 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event);
2842 static void from_unknown_sta(struct wpa_driver_nl80211_data *drv,
2843 struct ieee80211_hdr *hdr, size_t len)
2845 union wpa_event_data event;
2846 os_memset(&event, 0, sizeof(event));
2847 event.rx_from_unknown.hdr = hdr;
2848 event.rx_from_unknown.len = len;
2849 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event);
2853 static void handle_frame(struct wpa_driver_nl80211_data *drv,
2854 u8 *buf, size_t len,
2855 struct hostapd_frame_info *hfi)
2857 struct ieee80211_hdr *hdr;
2859 union wpa_event_data event;
2861 hdr = (struct ieee80211_hdr *) buf;
2862 fc = le_to_host16(hdr->frame_control);
2864 switch (WLAN_FC_GET_TYPE(fc)) {
2865 case WLAN_FC_TYPE_MGMT:
2866 os_memset(&event, 0, sizeof(event));
2867 event.rx_mgmt.frame = buf;
2868 event.rx_mgmt.frame_len = len;
2869 event.rx_mgmt.fi = hfi;
2870 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
2872 case WLAN_FC_TYPE_CTRL:
2873 /* can only get here with PS-Poll frames */
2874 wpa_printf(MSG_DEBUG, "CTRL");
2875 from_unknown_sta(drv, hdr, len);
2877 case WLAN_FC_TYPE_DATA:
2878 from_unknown_sta(drv, hdr, len);
2884 static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx)
2886 struct wpa_driver_nl80211_data *drv = eloop_ctx;
2888 unsigned char buf[3000];
2889 struct ieee80211_radiotap_iterator iter;
2891 struct hostapd_frame_info hfi;
2892 int injected = 0, failed = 0, rxflags = 0;
2894 len = recv(sock, buf, sizeof(buf), 0);
2900 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) {
2901 printf("received invalid radiotap frame\n");
2905 memset(&hfi, 0, sizeof(hfi));
2908 ret = ieee80211_radiotap_iterator_next(&iter);
2912 printf("received invalid radiotap frame (%d)\n", ret);
2915 switch (iter.this_arg_index) {
2916 case IEEE80211_RADIOTAP_FLAGS:
2917 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS)
2920 case IEEE80211_RADIOTAP_RX_FLAGS:
2923 case IEEE80211_RADIOTAP_TX_FLAGS:
2925 failed = le_to_host16((*(uint16_t *) iter.this_arg)) &
2926 IEEE80211_RADIOTAP_F_TX_FAIL;
2928 case IEEE80211_RADIOTAP_DATA_RETRIES:
2930 case IEEE80211_RADIOTAP_CHANNEL:
2931 /* TODO convert from freq/flags to channel number
2935 case IEEE80211_RADIOTAP_RATE:
2936 hfi.datarate = *iter.this_arg * 5;
2938 case IEEE80211_RADIOTAP_DB_ANTSIGNAL:
2939 hfi.ssi_signal = *iter.this_arg;
2944 if (rxflags && injected)
2948 handle_frame(drv, buf + iter.max_length,
2949 len - iter.max_length, &hfi);
2951 handle_tx_callback(drv->ctx, buf + iter.max_length,
2952 len - iter.max_length, !failed);
2957 * we post-process the filter code later and rewrite
2958 * this to the offset to the last instruction
2963 static struct sock_filter msock_filter_insns[] = {
2965 * do a little-endian load of the radiotap length field
2967 /* load lower byte into A */
2968 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2),
2969 /* put it into X (== index register) */
2970 BPF_STMT(BPF_MISC| BPF_TAX, 0),
2971 /* load upper byte into A */
2972 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3),
2973 /* left-shift it by 8 */
2974 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8),
2976 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0),
2977 /* put result into X */
2978 BPF_STMT(BPF_MISC| BPF_TAX, 0),
2981 * Allow management frames through, this also gives us those
2982 * management frames that we sent ourselves with status
2984 /* load the lower byte of the IEEE 802.11 frame control field */
2985 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
2986 /* mask off frame type and version */
2987 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF),
2988 /* accept frame if it's both 0, fall through otherwise */
2989 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0),
2992 * TODO: add a bit to radiotap RX flags that indicates
2993 * that the sending station is not associated, then
2994 * add a filter here that filters on our DA and that flag
2995 * to allow us to deauth frames to that bad station.
2997 * Not a regression -- we didn't do it before either.
3002 * drop non-data frames, WDS frames
3004 /* load the lower byte of the frame control field */
3005 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
3006 /* mask off QoS bit */
3007 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c),
3008 /* drop non-data frames */
3009 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL),
3010 /* load the upper byte of the frame control field */
3011 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
3012 /* mask off toDS/fromDS */
3013 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03),
3014 /* drop WDS frames */
3015 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, FAIL, 0),
3019 * add header length to index
3021 /* load the lower byte of the frame control field */
3022 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
3023 /* mask off QoS bit */
3024 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80),
3025 /* right shift it by 6 to give 0 or 2 */
3026 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6),
3027 /* add data frame header length */
3028 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24),
3029 /* add index, was start of 802.11 header */
3030 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0),
3031 /* move to index, now start of LL header */
3032 BPF_STMT(BPF_MISC | BPF_TAX, 0),
3035 * Accept empty data frames, we use those for
3038 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0),
3039 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0),
3042 * Accept EAPOL frames
3044 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0),
3045 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL),
3046 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4),
3047 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL),
3049 /* keep these last two statements or change the code below */
3050 /* return 0 == "DROP" */
3051 BPF_STMT(BPF_RET | BPF_K, 0),
3052 /* return ~0 == "keep all" */
3053 BPF_STMT(BPF_RET | BPF_K, ~0),
3056 static struct sock_fprog msock_filter = {
3057 .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]),
3058 .filter = msock_filter_insns,
3062 static int add_monitor_filter(int s)
3066 /* rewrite all PASS/FAIL jump offsets */
3067 for (idx = 0; idx < msock_filter.len; idx++) {
3068 struct sock_filter *insn = &msock_filter_insns[idx];
3070 if (BPF_CLASS(insn->code) == BPF_JMP) {
3071 if (insn->code == (BPF_JMP|BPF_JA)) {
3072 if (insn->k == PASS)
3073 insn->k = msock_filter.len - idx - 2;
3074 else if (insn->k == FAIL)
3075 insn->k = msock_filter.len - idx - 3;
3078 if (insn->jt == PASS)
3079 insn->jt = msock_filter.len - idx - 2;
3080 else if (insn->jt == FAIL)
3081 insn->jt = msock_filter.len - idx - 3;
3083 if (insn->jf == PASS)
3084 insn->jf = msock_filter.len - idx - 2;
3085 else if (insn->jf == FAIL)
3086 insn->jf = msock_filter.len - idx - 3;
3090 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER,
3091 &msock_filter, sizeof(msock_filter))) {
3092 perror("SO_ATTACH_FILTER");
3100 static void nl80211_remove_monitor_interface(
3101 struct wpa_driver_nl80211_data *drv)
3103 if (drv->monitor_ifidx >= 0) {
3104 nl80211_remove_iface(drv, drv->monitor_ifidx);
3105 drv->monitor_ifidx = -1;
3111 nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv)
3114 struct sockaddr_ll ll;
3118 snprintf(buf, IFNAMSIZ, "mon.%s", drv->ifname);
3119 buf[IFNAMSIZ - 1] = '\0';
3121 drv->monitor_ifidx =
3122 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL);
3124 if (drv->monitor_ifidx < 0)
3127 if (hostapd_set_iface_flags(drv, buf, 1))
3130 memset(&ll, 0, sizeof(ll));
3131 ll.sll_family = AF_PACKET;
3132 ll.sll_ifindex = drv->monitor_ifidx;
3133 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
3134 if (drv->monitor_sock < 0) {
3135 perror("socket[PF_PACKET,SOCK_RAW]");
3139 if (add_monitor_filter(drv->monitor_sock)) {
3140 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor "
3141 "interface; do filtering in user space");
3142 /* This works, but will cost in performance. */
3145 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) {
3146 perror("monitor socket bind");
3150 optlen = sizeof(optval);
3153 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) {
3154 perror("Failed to set socket priority");
3158 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read,
3160 printf("Could not register monitor read socket\n");
3166 nl80211_remove_monitor_interface(drv);
3171 static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
3173 static int wpa_driver_nl80211_hapd_send_eapol(
3174 void *priv, const u8 *addr, const u8 *data,
3175 size_t data_len, int encrypt, const u8 *own_addr)
3177 struct wpa_driver_nl80211_data *drv = priv;
3178 struct ieee80211_hdr *hdr;
3183 int qos = sta->flags & WPA_STA_WMM;
3188 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 +
3190 hdr = os_zalloc(len);
3192 printf("malloc() failed for i802_send_data(len=%lu)\n",
3193 (unsigned long) len);
3197 hdr->frame_control =
3198 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA);
3199 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS);
3201 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP);
3202 #if 0 /* To be enabled if qos determination is added above */
3204 hdr->frame_control |=
3205 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4);
3209 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN);
3210 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
3211 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
3212 pos = (u8 *) (hdr + 1);
3214 #if 0 /* To be enabled if qos determination is added above */
3216 /* add an empty QoS header if needed */
3223 memcpy(pos, rfc1042_header, sizeof(rfc1042_header));
3224 pos += sizeof(rfc1042_header);
3225 WPA_PUT_BE16(pos, ETH_P_PAE);
3227 memcpy(pos, data, data_len);
3229 res = wpa_driver_nl80211_send_frame(drv, (u8 *) hdr, len, encrypt);
3231 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - "
3233 (unsigned long) len, errno, strerror(errno));
3241 static u32 sta_flags_nl80211(int flags)
3245 if (flags & WPA_STA_AUTHORIZED)
3246 f |= BIT(NL80211_STA_FLAG_AUTHORIZED);
3247 if (flags & WPA_STA_WMM)
3248 f |= BIT(NL80211_STA_FLAG_WME);
3249 if (flags & WPA_STA_SHORT_PREAMBLE)
3250 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
3251 if (flags & WPA_STA_MFP)
3252 f |= BIT(NL80211_STA_FLAG_MFP);
3258 static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr,
3259 int total_flags, int flags_or,
3262 struct wpa_driver_nl80211_data *drv = priv;
3263 struct nl_msg *msg, *flags = NULL;
3264 struct nl80211_sta_flag_update upd;
3266 msg = nlmsg_alloc();
3270 flags = nlmsg_alloc();
3276 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3277 0, NL80211_CMD_SET_STATION, 0);
3279 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
3280 if_nametoindex(drv->ifname));
3281 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
3284 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This
3285 * can be removed eventually.
3287 if (total_flags & WPA_STA_AUTHORIZED)
3288 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_AUTHORIZED);
3290 if (total_flags & WPA_STA_WMM)
3291 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_WME);
3293 if (total_flags & WPA_STA_SHORT_PREAMBLE)
3294 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_SHORT_PREAMBLE);
3296 if (total_flags & WPA_STA_MFP)
3297 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_MFP);
3299 if (nla_put_nested(msg, NL80211_ATTR_STA_FLAGS, flags))
3300 goto nla_put_failure;
3302 os_memset(&upd, 0, sizeof(upd));
3303 upd.mask = sta_flags_nl80211(flags_or | ~flags_and);
3304 upd.set = sta_flags_nl80211(flags_or);
3305 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
3309 return send_and_recv_msgs(drv, msg, NULL, NULL);
3316 static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv,
3317 struct wpa_driver_associate_params *params)
3319 if (wpa_driver_nl80211_set_mode(drv, params->mode) ||
3320 wpa_driver_nl80211_set_freq(drv, params->freq, 0, 0)) {
3321 nl80211_remove_monitor_interface(drv);
3325 /* TODO: setup monitor interface (and add code somewhere to remove this
3326 * when AP mode is stopped; associate with mode != 2 or drv_deinit) */
3332 static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv)
3337 msg = nlmsg_alloc();
3341 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
3342 NL80211_CMD_LEAVE_IBSS, 0);
3343 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3344 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3347 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d "
3348 "(%s)", ret, strerror(-ret));
3349 goto nla_put_failure;
3353 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully");
3361 static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv,
3362 struct wpa_driver_associate_params *params)
3368 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex);
3370 if (wpa_driver_nl80211_set_mode(drv, params->mode)) {
3371 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into "
3377 msg = nlmsg_alloc();
3381 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
3382 NL80211_CMD_JOIN_IBSS, 0);
3383 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3385 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid))
3386 goto nla_put_failure;
3388 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
3389 params->ssid, params->ssid_len);
3390 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
3392 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
3393 drv->ssid_len = params->ssid_len;
3395 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
3396 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
3398 ret = nl80211_set_conn_keys(params, msg);
3400 goto nla_put_failure;
3402 if (params->wpa_ie) {
3403 wpa_hexdump(MSG_DEBUG,
3404 " * Extra IEs for Beacon/Probe Response frames",
3405 params->wpa_ie, params->wpa_ie_len);
3406 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
3410 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3413 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)",
3414 ret, strerror(-ret));
3416 if (ret == -EALREADY && count == 1) {
3417 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after "
3419 nl80211_leave_ibss(drv);
3424 goto nla_put_failure;
3427 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully");
3435 static int wpa_driver_nl80211_connect(
3436 struct wpa_driver_nl80211_data *drv,
3437 struct wpa_driver_associate_params *params)
3440 enum nl80211_auth_type type;
3443 msg = nlmsg_alloc();
3447 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex);
3448 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
3449 NL80211_CMD_CONNECT, 0);
3451 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3452 if (params->bssid) {
3453 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
3454 MAC2STR(params->bssid));
3455 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
3458 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
3459 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
3462 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
3463 params->ssid, params->ssid_len);
3464 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
3466 if (params->ssid_len > sizeof(drv->ssid))
3467 goto nla_put_failure;
3468 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
3469 drv->ssid_len = params->ssid_len;
3471 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
3473 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
3476 if (params->auth_alg & AUTH_ALG_OPEN_SYSTEM)
3477 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
3478 else if (params->auth_alg & AUTH_ALG_SHARED_KEY)
3479 type = NL80211_AUTHTYPE_SHARED_KEY;
3480 else if (params->auth_alg & AUTH_ALG_LEAP)
3481 type = NL80211_AUTHTYPE_NETWORK_EAP;
3482 else if (params->auth_alg & AUTH_ALG_FT)
3483 type = NL80211_AUTHTYPE_FT;
3485 goto nla_put_failure;
3487 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
3488 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
3490 if (params->wpa_ie && params->wpa_ie_len) {
3491 enum nl80211_wpa_versions ver;
3493 if (params->wpa_ie[0] == WLAN_EID_RSN)
3494 ver = NL80211_WPA_VERSION_2;
3496 ver = NL80211_WPA_VERSION_1;
3498 wpa_printf(MSG_DEBUG, " * WPA Version %d", ver);
3499 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
3502 if (params->pairwise_suite != CIPHER_NONE) {
3505 switch (params->pairwise_suite) {
3507 cipher = WLAN_CIPHER_SUITE_WEP40;
3510 cipher = WLAN_CIPHER_SUITE_WEP104;
3513 cipher = WLAN_CIPHER_SUITE_CCMP;
3517 cipher = WLAN_CIPHER_SUITE_TKIP;
3520 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
3523 if (params->group_suite != CIPHER_NONE) {
3526 switch (params->group_suite) {
3528 cipher = WLAN_CIPHER_SUITE_WEP40;
3531 cipher = WLAN_CIPHER_SUITE_WEP104;
3534 cipher = WLAN_CIPHER_SUITE_CCMP;
3538 cipher = WLAN_CIPHER_SUITE_TKIP;
3541 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
3544 if (params->key_mgmt_suite == KEY_MGMT_802_1X ||
3545 params->key_mgmt_suite == KEY_MGMT_PSK) {
3546 int mgmt = WLAN_AKM_SUITE_PSK;
3548 switch (params->key_mgmt_suite) {
3549 case KEY_MGMT_802_1X:
3550 mgmt = WLAN_AKM_SUITE_8021X;
3554 mgmt = WLAN_AKM_SUITE_PSK;
3557 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt);
3560 ret = nl80211_set_conn_keys(params, msg);
3562 goto nla_put_failure;
3564 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3567 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d "
3568 "(%s)", ret, strerror(-ret));
3569 goto nla_put_failure;
3572 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully");
3581 static int wpa_driver_nl80211_associate(
3582 void *priv, struct wpa_driver_associate_params *params)
3584 struct wpa_driver_nl80211_data *drv = priv;
3588 if (params->mode == IEEE80211_MODE_AP)
3589 return wpa_driver_nl80211_ap(drv, params);
3591 if (params->mode == IEEE80211_MODE_IBSS)
3592 return wpa_driver_nl80211_ibss(drv, params);
3594 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) {
3595 if (wpa_driver_nl80211_set_mode(drv, params->mode) < 0)
3597 return wpa_driver_nl80211_connect(drv, params);
3600 drv->associated = 0;
3602 msg = nlmsg_alloc();
3606 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)",
3608 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
3609 NL80211_CMD_ASSOCIATE, 0);
3611 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3612 if (params->bssid) {
3613 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
3614 MAC2STR(params->bssid));
3615 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
3618 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
3619 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
3622 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
3623 params->ssid, params->ssid_len);
3624 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
3626 if (params->ssid_len > sizeof(drv->ssid))
3627 goto nla_put_failure;
3628 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
3629 drv->ssid_len = params->ssid_len;
3631 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
3633 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
3636 #ifdef CONFIG_IEEE80211W
3637 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED)
3638 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED);
3639 #endif /* CONFIG_IEEE80211W */
3641 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
3643 if (params->prev_bssid) {
3644 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR,
3645 MAC2STR(params->prev_bssid));
3646 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN,
3647 params->prev_bssid);
3650 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3653 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
3654 "(%s)", ret, strerror(-ret));
3655 goto nla_put_failure;
3658 wpa_printf(MSG_DEBUG, "nl80211: Association request send "
3667 static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv,
3668 int ifindex, int mode)
3673 msg = nlmsg_alloc();
3677 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3678 0, NL80211_CMD_SET_INTERFACE, 0);
3679 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
3680 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode);
3682 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3686 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:"
3687 " %d (%s)", ifindex, mode, ret, strerror(-ret));
3692 static int wpa_driver_nl80211_set_mode(void *priv, int mode)
3694 struct wpa_driver_nl80211_data *drv = priv;
3700 nlmode = NL80211_IFTYPE_STATION;
3703 nlmode = NL80211_IFTYPE_ADHOC;
3706 nlmode = NL80211_IFTYPE_AP;
3712 if (nl80211_set_mode(drv, drv->ifindex, nlmode) == 0) {
3713 drv->nlmode = nlmode;
3718 if (nlmode == drv->nlmode) {
3720 goto done; /* Already in the requested mode */
3723 /* mac80211 doesn't allow mode changes while the device is up, so
3724 * take the device down, try to set the mode again, and bring the
3727 if (hostapd_set_iface_flags(drv, drv->ifname, 0) == 0) {
3728 /* Try to set the mode again while the interface is down */
3729 ret = nl80211_set_mode(drv, drv->ifindex, nlmode);
3730 if (hostapd_set_iface_flags(drv, drv->ifname, 1))
3735 drv->nlmode = nlmode;
3738 if (!ret && nlmode == NL80211_IFTYPE_AP) {
3739 /* Setup additional AP mode functionality if needed */
3740 if (drv->monitor_ifidx < 0 &&
3741 nl80211_create_monitor_interface(drv))
3743 } else if (!ret && nlmode != NL80211_IFTYPE_AP) {
3744 /* Remove additional AP mode functionality */
3745 nl80211_remove_monitor_interface(drv);
3752 static int wpa_driver_nl80211_get_capa(void *priv,
3753 struct wpa_driver_capa *capa)
3755 struct wpa_driver_nl80211_data *drv = priv;
3756 if (!drv->has_capability)
3758 os_memcpy(capa, &drv->capa, sizeof(*capa));
3763 static int wpa_driver_nl80211_set_operstate(void *priv, int state)
3765 struct wpa_driver_nl80211_data *drv = priv;
3767 wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)",
3768 __func__, drv->operstate, state, state ? "UP" : "DORMANT");
3769 drv->operstate = state;
3770 return wpa_driver_nl80211_send_oper_ifla(
3771 drv, -1, state ? IF_OPER_UP : IF_OPER_DORMANT);
3775 static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized)
3777 struct wpa_driver_nl80211_data *drv = priv;
3779 struct nl80211_sta_flag_update upd;
3781 msg = nlmsg_alloc();
3785 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3786 0, NL80211_CMD_SET_STATION, 0);
3788 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
3789 if_nametoindex(drv->ifname));
3790 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
3792 os_memset(&upd, 0, sizeof(upd));
3793 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED);
3795 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED);
3796 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
3798 return send_and_recv_msgs(drv, msg, NULL, NULL);
3806 static struct i802_bss * get_bss(struct wpa_driver_nl80211_data *drv,
3809 struct i802_bss *bss = &drv->bss;
3811 if (ifindex == bss->ifindex)
3815 wpa_printf(MSG_DEBUG, "nl80211: get_bss(%d) failed", ifindex);
3820 static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
3825 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d",
3827 for (i = 0; i < drv->num_if_indices; i++) {
3828 if (drv->if_indices[i] == 0) {
3829 drv->if_indices[i] = ifidx;
3834 if (drv->if_indices != drv->default_if_indices)
3835 old = drv->if_indices;
3839 drv->if_indices = realloc(old,
3840 sizeof(int) * (drv->num_if_indices + 1));
3841 if (!drv->if_indices) {
3843 drv->if_indices = drv->default_if_indices;
3845 drv->if_indices = old;
3846 wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
3848 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
3851 drv->if_indices[drv->num_if_indices] = ifidx;
3852 drv->num_if_indices++;
3856 static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
3860 for (i = 0; i < drv->num_if_indices; i++) {
3861 if (drv->if_indices[i] == ifidx) {
3862 drv->if_indices[i] = 0;
3869 static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
3873 for (i = 0; i < drv->num_if_indices; i++)
3874 if (drv->if_indices[i] == ifidx)
3881 static inline int min_int(int a, int b)
3889 static int get_key_handler(struct nl_msg *msg, void *arg)
3891 struct nlattr *tb[NL80211_ATTR_MAX + 1];
3892 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3894 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3895 genlmsg_attrlen(gnlh, 0), NULL);
3898 * TODO: validate the key index and mac address!
3899 * Otherwise, there's a race condition as soon as
3900 * the kernel starts sending key notifications.
3903 if (tb[NL80211_ATTR_KEY_SEQ])
3904 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]),
3905 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6));
3910 static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
3913 struct wpa_driver_nl80211_data *drv = priv;
3916 msg = nlmsg_alloc();
3920 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3921 0, NL80211_CMD_GET_KEY, 0);
3924 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
3925 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
3926 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
3930 return send_and_recv_msgs(drv, msg, get_key_handler, seq);
3936 static int i802_set_rate_sets(void *priv, int *supp_rates, int *basic_rates,
3939 struct wpa_driver_nl80211_data *drv = priv;
3941 u8 rates[NL80211_MAX_SUPP_RATES];
3945 msg = nlmsg_alloc();
3949 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
3950 NL80211_CMD_SET_BSS, 0);
3952 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; i++)
3953 rates[rates_len++] = basic_rates[i] / 5;
3955 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates);
3957 /* TODO: multi-BSS support */
3958 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->ifname));
3960 return send_and_recv_msgs(drv, msg, NULL, NULL);
3966 /* Set kernel driver on given frequency (MHz) */
3967 static int i802_set_freq(void *priv, struct hostapd_freq_params *freq)
3969 struct wpa_driver_nl80211_data *drv = priv;
3970 return wpa_driver_nl80211_set_freq(drv, freq->freq, freq->ht_enabled,
3971 freq->sec_channel_offset);
3975 static int i802_set_rts(void *priv, int rts)
3977 struct wpa_driver_nl80211_data *drv = priv;
3982 msg = nlmsg_alloc();
3991 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3992 0, NL80211_CMD_SET_WIPHY, 0);
3993 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3994 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val);
3996 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4000 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: "
4001 "%d (%s)", rts, ret, strerror(-ret));
4006 static int i802_set_frag(void *priv, int frag)
4008 struct wpa_driver_nl80211_data *drv = priv;
4013 msg = nlmsg_alloc();
4022 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4023 0, NL80211_CMD_SET_WIPHY, 0);
4024 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4025 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val);
4027 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4031 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold "
4032 "%d: %d (%s)", frag, ret, strerror(-ret));
4037 static int i802_flush(void *priv)
4039 struct wpa_driver_nl80211_data *drv = priv;
4042 msg = nlmsg_alloc();
4046 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4047 0, NL80211_CMD_DEL_STATION, 0);
4050 * XXX: FIX! this needs to flush all VLANs too
4052 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
4053 if_nametoindex(drv->ifname));
4055 return send_and_recv_msgs(drv, msg, NULL, NULL);
4061 static int get_sta_handler(struct nl_msg *msg, void *arg)
4063 struct nlattr *tb[NL80211_ATTR_MAX + 1];
4064 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
4065 struct hostap_sta_driver_data *data = arg;
4066 struct nlattr *stats[NL80211_STA_INFO_MAX + 1];
4067 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
4068 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
4069 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
4070 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
4071 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
4072 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
4075 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
4076 genlmsg_attrlen(gnlh, 0), NULL);
4079 * TODO: validate the interface and mac address!
4080 * Otherwise, there's a race condition as soon as
4081 * the kernel starts sending station notifications.
4084 if (!tb[NL80211_ATTR_STA_INFO]) {
4085 wpa_printf(MSG_DEBUG, "sta stats missing!");
4088 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX,
4089 tb[NL80211_ATTR_STA_INFO],
4091 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!");
4095 if (stats[NL80211_STA_INFO_INACTIVE_TIME])
4096 data->inactive_msec =
4097 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]);
4098 if (stats[NL80211_STA_INFO_RX_BYTES])
4099 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]);
4100 if (stats[NL80211_STA_INFO_TX_BYTES])
4101 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]);
4102 if (stats[NL80211_STA_INFO_RX_PACKETS])
4104 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]);
4105 if (stats[NL80211_STA_INFO_TX_PACKETS])
4107 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]);
4112 static int i802_read_sta_data(void *priv, struct hostap_sta_driver_data *data,
4115 struct wpa_driver_nl80211_data *drv = priv;
4118 os_memset(data, 0, sizeof(*data));
4119 msg = nlmsg_alloc();
4123 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4124 0, NL80211_CMD_GET_STATION, 0);
4126 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
4127 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->ifname));
4129 return send_and_recv_msgs(drv, msg, get_sta_handler, data);
4135 static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
4136 int cw_min, int cw_max, int burst_time)
4138 struct wpa_driver_nl80211_data *drv = priv;
4140 struct nlattr *txq, *params;
4142 msg = nlmsg_alloc();
4146 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4147 0, NL80211_CMD_SET_WIPHY, 0);
4149 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->ifname));
4151 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS);
4153 goto nla_put_failure;
4155 /* We are only sending parameters for a single TXQ at a time */
4156 params = nla_nest_start(msg, 1);
4158 goto nla_put_failure;
4160 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, queue);
4161 /* Burst time is configured in units of 0.1 msec and TXOP parameter in
4162 * 32 usec, so need to convert the value here. */
4163 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32);
4164 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min);
4165 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max);
4166 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs);
4168 nla_nest_end(msg, params);
4170 nla_nest_end(msg, txq);
4172 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
4179 static int i802_set_bss(void *priv, int cts, int preamble, int slot)
4181 struct wpa_driver_nl80211_data *drv = priv;
4184 msg = nlmsg_alloc();
4188 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
4189 NL80211_CMD_SET_BSS, 0);
4192 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts);
4194 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble);
4196 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot);
4198 /* TODO: multi-BSS support */
4199 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->ifname));
4201 return send_and_recv_msgs(drv, msg, NULL, NULL);
4207 static int i802_set_cts_protect(void *priv, int value)
4209 return i802_set_bss(priv, value, -1, -1);
4213 static int i802_set_preamble(void *priv, int value)
4215 return i802_set_bss(priv, -1, value, -1);
4219 static int i802_set_short_slot_time(void *priv, int value)
4221 return i802_set_bss(priv, -1, -1, value);
4225 static int i802_set_sta_vlan(void *priv, const u8 *addr,
4226 const char *ifname, int vlan_id)
4228 struct wpa_driver_nl80211_data *drv = priv;
4231 msg = nlmsg_alloc();
4235 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4236 0, NL80211_CMD_SET_STATION, 0);
4238 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
4239 if_nametoindex(drv->ifname));
4240 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
4241 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN,
4242 if_nametoindex(ifname));
4244 return send_and_recv_msgs(drv, msg, NULL, NULL);
4250 static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
4252 struct wpa_driver_nl80211_data *drv = eloop_ctx;
4253 struct sockaddr_ll lladdr;
4254 unsigned char buf[3000];
4256 socklen_t fromlen = sizeof(lladdr);
4258 len = recvfrom(sock, buf, sizeof(buf), 0,
4259 (struct sockaddr *)&lladdr, &fromlen);
4265 if (have_ifidx(drv, lladdr.sll_ifindex)) {
4267 ctx = hostapd_sta_get_bss(drv->ctx, lladdr.sll_addr);
4270 hostapd_eapol_receive(ctx, lladdr.sll_addr, buf, len);
4275 static int i802_get_inact_sec(void *priv, const u8 *addr)
4277 struct hostap_sta_driver_data data;
4280 data.inactive_msec = (unsigned long) -1;
4281 ret = i802_read_sta_data(priv, &data, addr);
4282 if (ret || data.inactive_msec == (unsigned long) -1)
4284 return data.inactive_msec / 1000;
4288 static int i802_sta_clear_stats(void *priv, const u8 *addr)
4297 static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
4300 struct wpa_driver_nl80211_data *drv = priv;
4301 struct ieee80211_mgmt mgmt;
4303 memset(&mgmt, 0, sizeof(mgmt));
4304 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
4305 WLAN_FC_STYPE_DEAUTH);
4306 memcpy(mgmt.da, addr, ETH_ALEN);
4307 memcpy(mgmt.sa, own_addr, ETH_ALEN);
4308 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
4309 mgmt.u.deauth.reason_code = host_to_le16(reason);
4310 return wpa_driver_nl80211_send_mlme(drv, (u8 *) &mgmt,
4312 sizeof(mgmt.u.deauth));
4316 static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
4319 struct wpa_driver_nl80211_data *drv = priv;
4320 struct ieee80211_mgmt mgmt;
4322 memset(&mgmt, 0, sizeof(mgmt));
4323 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
4324 WLAN_FC_STYPE_DISASSOC);
4325 memcpy(mgmt.da, addr, ETH_ALEN);
4326 memcpy(mgmt.sa, own_addr, ETH_ALEN);
4327 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
4328 mgmt.u.disassoc.reason_code = host_to_le16(reason);
4329 return wpa_driver_nl80211_send_mlme(drv, (u8 *) &mgmt,
4331 sizeof(mgmt.u.disassoc));
4335 static void *i802_init(struct hostapd_data *hapd,
4336 struct wpa_init_params *params)
4338 struct wpa_driver_nl80211_data *drv;
4341 drv = wpa_driver_nl80211_init(hapd, params->ifname);
4345 drv->bss.ifindex = drv->ifindex;
4347 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
4348 drv->if_indices = drv->default_if_indices;
4349 for (i = 0; i < params->num_bridge; i++) {
4350 if (params->bridge[i])
4351 add_ifidx(drv, if_nametoindex(params->bridge[i]));
4354 /* start listening for EAPOL on the default AP interface */
4355 add_ifidx(drv, drv->ifindex);
4357 if (hostapd_set_iface_flags(drv, drv->ifname, 0))
4360 if (params->bssid) {
4361 if (set_ifhwaddr(drv, drv->ifname, params->bssid))
4365 if (wpa_driver_nl80211_set_mode(drv, IEEE80211_MODE_AP)) {
4366 wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s "
4367 "into AP mode", drv->ifname);
4371 if (hostapd_set_iface_flags(drv, drv->ifname, 1))
4374 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE));
4375 if (drv->eapol_sock < 0) {
4376 perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)");
4380 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL))
4382 printf("Could not register read socket for eapol\n");
4386 if (get_ifhwaddr(drv, drv->ifname, params->own_addr))
4392 nl80211_remove_monitor_interface(drv);
4393 if (drv->ioctl_sock >= 0)
4394 close(drv->ioctl_sock);
4396 genl_family_put(drv->nl80211);
4397 nl_cache_free(drv->nl_cache);
4398 nl_handle_destroy(drv->nl_handle);
4399 nl_cb_put(drv->nl_cb);
4406 static void i802_deinit(void *priv)
4408 wpa_driver_nl80211_deinit(priv);
4411 #endif /* HOSTAPD */
4414 static enum nl80211_iftype wpa_driver_nl80211_if_type(
4415 enum wpa_driver_if_type type)
4418 case WPA_IF_STATION:
4419 return NL80211_IFTYPE_STATION;
4420 case WPA_IF_AP_VLAN:
4421 return NL80211_IFTYPE_AP_VLAN;
4423 return NL80211_IFTYPE_AP;
4429 static int wpa_driver_nl80211_if_add(const char *iface, void *priv,
4430 enum wpa_driver_if_type type,
4431 const char *ifname, const u8 *addr,
4434 struct wpa_driver_nl80211_data *drv = priv;
4437 struct i802_bss *bss = NULL;
4439 if (type == WPA_IF_AP_BSS) {
4440 bss = os_zalloc(sizeof(*bss));
4444 #endif /* HOSTAPD */
4446 ifidx = nl80211_create_iface(drv, ifname,
4447 wpa_driver_nl80211_if_type(type), addr);
4451 #endif /* HOSTAPD */
4456 if (type == WPA_IF_AP_BSS) {
4457 if (hostapd_set_iface_flags(priv, ifname, 1)) {
4458 nl80211_remove_iface(priv, ifidx);
4462 bss->ifindex = ifidx;
4463 bss->next = drv->bss.next;
4464 drv->bss.next = bss;
4466 #endif /* HOSTAPD */
4472 static int wpa_driver_nl80211_if_remove(void *priv,
4473 enum wpa_driver_if_type type,
4476 struct wpa_driver_nl80211_data *drv = priv;
4477 int ifindex = if_nametoindex(ifname);
4479 nl80211_remove_iface(drv, ifindex);
4482 if (type == WPA_IF_AP_BSS) {
4483 struct i802_bss *bss, *prev;
4485 bss = drv->bss.next;
4487 if (ifindex == bss->ifindex) {
4488 prev->next = bss->next;
4496 #endif /* HOSTAPD */
4502 const struct wpa_driver_ops wpa_driver_nl80211_ops = {
4504 .desc = "Linux nl80211/cfg80211",
4505 .get_bssid = wpa_driver_nl80211_get_bssid,
4506 .get_ssid = wpa_driver_nl80211_get_ssid,
4507 .set_key = wpa_driver_nl80211_set_key,
4508 .scan2 = wpa_driver_nl80211_scan,
4509 .get_scan_results2 = wpa_driver_nl80211_get_scan_results,
4510 .deauthenticate = wpa_driver_nl80211_deauthenticate,
4511 .disassociate = wpa_driver_nl80211_disassociate,
4512 .authenticate = wpa_driver_nl80211_authenticate,
4513 .associate = wpa_driver_nl80211_associate,
4514 .init = wpa_driver_nl80211_init,
4515 .deinit = wpa_driver_nl80211_deinit,
4516 .get_capa = wpa_driver_nl80211_get_capa,
4517 .set_operstate = wpa_driver_nl80211_set_operstate,
4518 .set_supp_port = wpa_driver_nl80211_set_supp_port,
4519 .set_country = wpa_driver_nl80211_set_country,
4520 .set_beacon = wpa_driver_nl80211_set_beacon,
4521 .if_add = wpa_driver_nl80211_if_add,
4522 .if_remove = wpa_driver_nl80211_if_remove,
4523 .send_mlme = wpa_driver_nl80211_send_mlme,
4524 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data,
4525 .sta_add = wpa_driver_nl80211_sta_add,
4526 .sta_remove = wpa_driver_nl80211_sta_remove,
4527 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol,
4528 .sta_set_flags = wpa_driver_nl80211_sta_set_flags,
4530 .hapd_init = i802_init,
4531 .hapd_deinit = i802_deinit,
4532 .get_seqnum = i802_get_seqnum,
4533 .flush = i802_flush,
4534 .read_sta_data = i802_read_sta_data,
4535 .sta_deauth = i802_sta_deauth,
4536 .sta_disassoc = i802_sta_disassoc,
4537 .get_inact_sec = i802_get_inact_sec,
4538 .sta_clear_stats = i802_sta_clear_stats,
4539 .set_freq = i802_set_freq,
4540 .set_rts = i802_set_rts,
4541 .set_frag = i802_set_frag,
4542 .set_rate_sets = i802_set_rate_sets,
4543 .set_cts_protect = i802_set_cts_protect,
4544 .set_preamble = i802_set_preamble,
4545 .set_short_slot_time = i802_set_short_slot_time,
4546 .set_tx_queue_params = i802_set_tx_queue_params,
4547 .set_sta_vlan = i802_set_sta_vlan,
4548 #endif /* HOSTAPD */