2 * Driver interaction with Linux nl80211/cfg80211
3 * Copyright (c) 2002-2012, Jouni Malinen <j@w1.fi>
4 * Copyright (c) 2003-2004, Instant802 Networks, Inc.
5 * Copyright (c) 2005-2006, Devicescape Software, Inc.
6 * Copyright (c) 2007, Johannes Berg <johannes@sipsolutions.net>
7 * Copyright (c) 2009-2010, Atheros Communications
9 * This software may be distributed under the terms of the BSD license.
10 * See README for more details.
14 #include <sys/ioctl.h>
15 #include <sys/types.h>
19 #include <netlink/genl/genl.h>
20 #include <netlink/genl/family.h>
21 #include <netlink/genl/ctrl.h>
22 #include <linux/rtnetlink.h>
23 #include <netpacket/packet.h>
24 #include <linux/filter.h>
25 #include <linux/errqueue.h>
26 #include "nl80211_copy.h"
30 #include "utils/list.h"
31 #include "common/ieee802_11_defs.h"
32 #include "common/ieee802_11_common.h"
33 #include "l2_packet/l2_packet.h"
35 #include "linux_ioctl.h"
37 #include "radiotap_iter.h"
41 #ifndef SO_WIFI_STATUS
42 # if defined(__sparc__)
43 # define SO_WIFI_STATUS 0x0025
44 # elif defined(__parisc__)
45 # define SO_WIFI_STATUS 0x4022
47 # define SO_WIFI_STATUS 41
50 # define SCM_WIFI_STATUS SO_WIFI_STATUS
53 #ifndef SO_EE_ORIGIN_TXSTATUS
54 #define SO_EE_ORIGIN_TXSTATUS 4
57 #ifndef PACKET_TX_TIMESTAMP
58 #define PACKET_TX_TIMESTAMP 16
62 #include "android_drv.h"
64 /* system/core/libnl_2 in AOSP does not include nla_put_u32() */
65 int nla_put_u32(struct nl_msg *msg, int attrtype, uint32_t value)
67 return nla_put(msg, attrtype, sizeof(uint32_t), &value);
71 /* libnl 2.0 compatibility code */
72 #define nl_handle nl_sock
73 #define nl80211_handle_alloc nl_socket_alloc_cb
74 #define nl80211_handle_destroy nl_socket_free
77 * libnl 1.1 has a bug, it tries to allocate socket numbers densely
78 * but when you free a socket again it will mess up its bitmap and
79 * and use the wrong number the next time it needs a socket ID.
80 * Therefore, we wrap the handle alloc/destroy and add our own pid
83 static uint32_t port_bitmap[32] = { 0 };
85 static struct nl_handle *nl80211_handle_alloc(void *cb)
87 struct nl_handle *handle;
88 uint32_t pid = getpid() & 0x3FFFFF;
91 handle = nl_handle_alloc_cb(cb);
93 for (i = 0; i < 1024; i++) {
94 if (port_bitmap[i / 32] & (1 << (i % 32)))
96 port_bitmap[i / 32] |= 1 << (i % 32);
101 nl_socket_set_local_port(handle, pid);
106 static void nl80211_handle_destroy(struct nl_handle *handle)
108 uint32_t port = nl_socket_get_local_port(handle);
111 port_bitmap[port / 32] &= ~(1 << (port % 32));
113 nl_handle_destroy(handle);
115 #endif /* CONFIG_LIBNL20 */
118 static struct nl_handle * nl_create_handle(struct nl_cb *cb, const char *dbg)
120 struct nl_handle *handle;
122 handle = nl80211_handle_alloc(cb);
123 if (handle == NULL) {
124 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
125 "callbacks (%s)", dbg);
129 if (genl_connect(handle)) {
130 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
131 "netlink (%s)", dbg);
132 nl80211_handle_destroy(handle);
140 static void nl_destroy_handles(struct nl_handle **handle)
144 nl80211_handle_destroy(*handle);
150 #define IFF_LOWER_UP 0x10000 /* driver signals L1 up */
153 #define IFF_DORMANT 0x20000 /* driver signals dormant */
156 #ifndef IF_OPER_DORMANT
157 #define IF_OPER_DORMANT 5
163 struct nl80211_global {
164 struct dl_list interfaces;
166 struct netlink_data *netlink;
168 struct nl_handle *nl;
170 int ioctl_sock; /* socket for ioctl() use */
172 struct nl_handle *nl_event;
175 struct nl80211_wiphy_data {
180 struct nl_handle *nl_beacons;
186 static void nl80211_global_deinit(void *priv);
187 static void wpa_driver_nl80211_deinit(void *priv);
190 struct wpa_driver_nl80211_data *drv;
191 struct i802_bss *next;
193 char ifname[IFNAMSIZ + 1];
194 char brname[IFNAMSIZ];
195 unsigned int beacon_set:1;
196 unsigned int added_if_into_bridge:1;
197 unsigned int added_bridge:1;
198 unsigned int in_deinit:1;
204 struct nl_handle *nl_preq, *nl_mgmt;
207 struct nl80211_wiphy_data *wiphy_data;
208 struct dl_list wiphy_list;
211 struct wpa_driver_nl80211_data {
212 struct nl80211_global *global;
214 struct dl_list wiphy_list;
220 int ignore_if_down_event;
221 struct rfkill_data *rfkill;
222 struct wpa_driver_capa capa;
227 int scan_complete_events;
231 u8 auth_bssid[ETH_ALEN];
236 enum nl80211_iftype nlmode;
237 enum nl80211_iftype ap_scan_as_station;
238 unsigned int assoc_freq;
242 int monitor_refcount;
244 unsigned int disabled_11b_rates:1;
245 unsigned int pending_remain_on_chan:1;
246 unsigned int in_interface_list:1;
247 unsigned int device_ap_sme:1;
248 unsigned int poll_command_supported:1;
249 unsigned int data_tx_status:1;
250 unsigned int scan_for_auth:1;
251 unsigned int retry_auth:1;
252 unsigned int use_monitor:1;
253 unsigned int ignore_next_local_disconnect:1;
255 u64 remain_on_chan_cookie;
256 u64 send_action_cookie;
258 unsigned int last_mgmt_freq;
260 struct wpa_driver_scan_filter *filter_ssids;
261 size_t num_filter_ssids;
263 struct i802_bss first_bss;
268 int eapol_sock; /* socket for EAPOL frames */
270 int default_if_indices[16];
278 /* From failed authentication command */
280 u8 auth_bssid_[ETH_ALEN];
282 size_t auth_ssid_len;
286 u8 auth_wep_key[4][16];
287 size_t auth_wep_key_len[4];
288 int auth_wep_tx_keyidx;
289 int auth_local_state_change;
294 static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx,
296 static int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
297 enum nl80211_iftype nlmode);
299 wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv);
300 static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
301 const u8 *addr, int cmd, u16 reason_code,
302 int local_state_change);
303 static void nl80211_remove_monitor_interface(
304 struct wpa_driver_nl80211_data *drv);
305 static int nl80211_send_frame_cmd(struct i802_bss *bss,
306 unsigned int freq, unsigned int wait,
307 const u8 *buf, size_t buf_len, u64 *cookie,
308 int no_cck, int no_ack, int offchanok);
309 static int wpa_driver_nl80211_probe_req_report(void *priv, int report);
311 static int android_pno_start(struct i802_bss *bss,
312 struct wpa_driver_scan_params *params);
313 static int android_pno_stop(struct i802_bss *bss);
317 static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
318 static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
319 static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
320 static int wpa_driver_nl80211_if_remove(void *priv,
321 enum wpa_driver_if_type type,
324 static inline void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
328 static inline void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
332 static inline int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
338 static int i802_set_freq(void *priv, struct hostapd_freq_params *freq);
339 static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
340 int ifindex, int disabled);
342 static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv);
343 static int wpa_driver_nl80211_authenticate_retry(
344 struct wpa_driver_nl80211_data *drv);
347 static int is_ap_interface(enum nl80211_iftype nlmode)
349 return (nlmode == NL80211_IFTYPE_AP ||
350 nlmode == NL80211_IFTYPE_P2P_GO);
354 static int is_sta_interface(enum nl80211_iftype nlmode)
356 return (nlmode == NL80211_IFTYPE_STATION ||
357 nlmode == NL80211_IFTYPE_P2P_CLIENT);
361 static int is_p2p_interface(enum nl80211_iftype nlmode)
363 return (nlmode == NL80211_IFTYPE_P2P_CLIENT ||
364 nlmode == NL80211_IFTYPE_P2P_GO);
368 struct nl80211_bss_info_arg {
369 struct wpa_driver_nl80211_data *drv;
370 struct wpa_scan_results *res;
371 unsigned int assoc_freq;
372 u8 assoc_bssid[ETH_ALEN];
375 static int bss_info_handler(struct nl_msg *msg, void *arg);
379 static int ack_handler(struct nl_msg *msg, void *arg)
386 static int finish_handler(struct nl_msg *msg, void *arg)
393 static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err,
402 static int no_seq_check(struct nl_msg *msg, void *arg)
408 static int send_and_recv(struct nl80211_global *global,
409 struct nl_handle *nl_handle, struct nl_msg *msg,
410 int (*valid_handler)(struct nl_msg *, void *),
416 cb = nl_cb_clone(global->nl_cb);
420 err = nl_send_auto_complete(nl_handle, msg);
426 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
427 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
428 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
431 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM,
432 valid_handler, valid_data);
435 nl_recvmsgs(nl_handle, cb);
443 static int send_and_recv_msgs_global(struct nl80211_global *global,
445 int (*valid_handler)(struct nl_msg *, void *),
448 return send_and_recv(global, global->nl, msg, valid_handler,
453 static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv,
455 int (*valid_handler)(struct nl_msg *, void *),
458 return send_and_recv(drv->global, drv->global->nl, msg,
459 valid_handler, valid_data);
469 static int family_handler(struct nl_msg *msg, void *arg)
471 struct family_data *res = arg;
472 struct nlattr *tb[CTRL_ATTR_MAX + 1];
473 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
474 struct nlattr *mcgrp;
477 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
478 genlmsg_attrlen(gnlh, 0), NULL);
479 if (!tb[CTRL_ATTR_MCAST_GROUPS])
482 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) {
483 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1];
484 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp),
485 nla_len(mcgrp), NULL);
486 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] ||
487 !tb2[CTRL_ATTR_MCAST_GRP_ID] ||
488 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]),
490 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0)
492 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]);
500 static int nl_get_multicast_id(struct nl80211_global *global,
501 const char *family, const char *group)
505 struct family_data res = { group, -ENOENT };
510 genlmsg_put(msg, 0, 0, genl_ctrl_resolve(global->nl, "nlctrl"),
511 0, 0, CTRL_CMD_GETFAMILY, 0);
512 NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family);
514 ret = send_and_recv_msgs_global(global, msg, family_handler, &res);
525 static void * nl80211_cmd(struct wpa_driver_nl80211_data *drv,
526 struct nl_msg *msg, int flags, uint8_t cmd)
528 return genlmsg_put(msg, 0, 0, drv->global->nl80211_id,
533 struct wiphy_idx_data {
538 static int netdev_info_handler(struct nl_msg *msg, void *arg)
540 struct nlattr *tb[NL80211_ATTR_MAX + 1];
541 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
542 struct wiphy_idx_data *info = arg;
544 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
545 genlmsg_attrlen(gnlh, 0), NULL);
547 if (tb[NL80211_ATTR_WIPHY])
548 info->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
554 static int nl80211_get_wiphy_index(struct i802_bss *bss)
557 struct wiphy_idx_data data = {
565 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE);
567 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
569 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0)
570 return data.wiphy_idx;
578 static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv,
579 struct nl80211_wiphy_data *w)
588 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_BEACONS);
590 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, w->wiphy_idx);
592 ret = send_and_recv(drv->global, w->nl_beacons, msg, NULL, NULL);
595 wpa_printf(MSG_DEBUG, "nl80211: Register beacons command "
596 "failed: ret=%d (%s)",
597 ret, strerror(-ret));
598 goto nla_put_failure;
607 static void nl80211_recv_beacons(int sock, void *eloop_ctx, void *handle)
609 struct nl80211_wiphy_data *w = eloop_ctx;
611 wpa_printf(MSG_EXCESSIVE, "nl80211: Beacon event message available");
613 nl_recvmsgs(handle, w->nl_cb);
617 static int process_beacon_event(struct nl_msg *msg, void *arg)
619 struct nl80211_wiphy_data *w = arg;
620 struct wpa_driver_nl80211_data *drv;
621 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
622 struct nlattr *tb[NL80211_ATTR_MAX + 1];
623 union wpa_event_data event;
625 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
626 genlmsg_attrlen(gnlh, 0), NULL);
628 if (gnlh->cmd != NL80211_CMD_FRAME) {
629 wpa_printf(MSG_DEBUG, "nl80211: Unexpected beacon event? (%d)",
634 if (!tb[NL80211_ATTR_FRAME])
637 dl_list_for_each(drv, &w->drvs, struct wpa_driver_nl80211_data,
639 os_memset(&event, 0, sizeof(event));
640 event.rx_mgmt.frame = nla_data(tb[NL80211_ATTR_FRAME]);
641 event.rx_mgmt.frame_len = nla_len(tb[NL80211_ATTR_FRAME]);
642 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
649 static struct nl80211_wiphy_data *
650 nl80211_get_wiphy_data_ap(struct i802_bss *bss)
652 static DEFINE_DL_LIST(nl80211_wiphys);
653 struct nl80211_wiphy_data *w;
654 int wiphy_idx, found = 0;
655 struct i802_bss *tmp_bss;
657 if (bss->wiphy_data != NULL)
658 return bss->wiphy_data;
660 wiphy_idx = nl80211_get_wiphy_index(bss);
662 dl_list_for_each(w, &nl80211_wiphys, struct nl80211_wiphy_data, list) {
663 if (w->wiphy_idx == wiphy_idx)
668 w = os_zalloc(sizeof(*w));
671 w->wiphy_idx = wiphy_idx;
672 dl_list_init(&w->bsss);
673 dl_list_init(&w->drvs);
675 w->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
680 nl_cb_set(w->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL);
681 nl_cb_set(w->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_beacon_event,
684 w->nl_beacons = nl_create_handle(bss->drv->global->nl_cb,
686 if (w->nl_beacons == NULL) {
691 if (nl80211_register_beacons(bss->drv, w)) {
692 nl_destroy_handles(&w->nl_beacons);
697 eloop_register_read_sock(nl_socket_get_fd(w->nl_beacons),
698 nl80211_recv_beacons, w, w->nl_beacons);
700 dl_list_add(&nl80211_wiphys, &w->list);
703 /* drv entry for this bss already there? */
704 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) {
705 if (tmp_bss->drv == bss->drv) {
712 dl_list_add(&w->drvs, &bss->drv->wiphy_list);
714 dl_list_add(&w->bsss, &bss->wiphy_list);
720 static void nl80211_put_wiphy_data_ap(struct i802_bss *bss)
722 struct nl80211_wiphy_data *w = bss->wiphy_data;
723 struct i802_bss *tmp_bss;
728 bss->wiphy_data = NULL;
729 dl_list_del(&bss->wiphy_list);
731 /* still any for this drv present? */
732 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) {
733 if (tmp_bss->drv == bss->drv) {
738 /* if not remove it */
740 dl_list_del(&bss->drv->wiphy_list);
742 if (!dl_list_empty(&w->bsss))
745 eloop_unregister_read_sock(nl_socket_get_fd(w->nl_beacons));
748 nl_destroy_handles(&w->nl_beacons);
749 dl_list_del(&w->list);
754 static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid)
756 struct i802_bss *bss = priv;
757 struct wpa_driver_nl80211_data *drv = bss->drv;
758 if (!drv->associated)
760 os_memcpy(bssid, drv->bssid, ETH_ALEN);
765 static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid)
767 struct i802_bss *bss = priv;
768 struct wpa_driver_nl80211_data *drv = bss->drv;
769 if (!drv->associated)
771 os_memcpy(ssid, drv->ssid, drv->ssid_len);
772 return drv->ssid_len;
776 static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv,
777 char *buf, size_t len, int del)
779 union wpa_event_data event;
781 os_memset(&event, 0, sizeof(event));
782 if (len > sizeof(event.interface_status.ifname))
783 len = sizeof(event.interface_status.ifname) - 1;
784 os_memcpy(event.interface_status.ifname, buf, len);
785 event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED :
786 EVENT_INTERFACE_ADDED;
788 wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s",
790 event.interface_status.ifname,
791 del ? "removed" : "added");
793 if (os_strcmp(drv->first_bss.ifname, event.interface_status.ifname) == 0) {
795 if (drv->if_removed) {
796 wpa_printf(MSG_DEBUG, "nl80211: if_removed "
797 "already set - ignore event");
802 if (if_nametoindex(drv->first_bss.ifname) == 0) {
803 wpa_printf(MSG_DEBUG, "nl80211: Interface %s "
804 "does not exist - ignore "
806 drv->first_bss.ifname);
809 if (!drv->if_removed) {
810 wpa_printf(MSG_DEBUG, "nl80211: if_removed "
811 "already cleared - ignore event");
818 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event);
822 static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv,
825 int attrlen, rta_len;
829 attr = (struct rtattr *) buf;
831 rta_len = RTA_ALIGN(sizeof(struct rtattr));
832 while (RTA_OK(attr, attrlen)) {
833 if (attr->rta_type == IFLA_IFNAME) {
834 if (os_strcmp(((char *) attr) + rta_len, drv->first_bss.ifname)
840 attr = RTA_NEXT(attr, attrlen);
847 static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv,
848 int ifindex, u8 *buf, size_t len)
850 if (drv->ifindex == ifindex)
853 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) {
854 drv->first_bss.ifindex = if_nametoindex(drv->first_bss.ifname);
855 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed "
857 wpa_driver_nl80211_finish_drv_init(drv);
865 static struct wpa_driver_nl80211_data *
866 nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len)
868 struct wpa_driver_nl80211_data *drv;
869 dl_list_for_each(drv, &global->interfaces,
870 struct wpa_driver_nl80211_data, list) {
871 if (wpa_driver_nl80211_own_ifindex(drv, idx, buf, len) ||
872 have_ifidx(drv, idx))
879 static void wpa_driver_nl80211_event_rtm_newlink(void *ctx,
880 struct ifinfomsg *ifi,
883 struct nl80211_global *global = ctx;
884 struct wpa_driver_nl80211_data *drv;
885 int attrlen, rta_len;
888 char namebuf[IFNAMSIZ];
890 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len);
892 wpa_printf(MSG_DEBUG, "nl80211: Ignore event for foreign "
893 "ifindex %d", ifi->ifi_index);
897 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x "
899 drv->operstate, ifi->ifi_flags,
900 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "",
901 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "",
902 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "",
903 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : "");
905 if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) {
906 if (if_indextoname(ifi->ifi_index, namebuf) &&
907 linux_iface_up(drv->global->ioctl_sock,
908 drv->first_bss.ifname) > 0) {
909 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down "
910 "event since interface %s is up", namebuf);
913 wpa_printf(MSG_DEBUG, "nl80211: Interface down");
914 if (drv->ignore_if_down_event) {
915 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down "
916 "event generated by mode change");
917 drv->ignore_if_down_event = 0;
919 drv->if_disabled = 1;
920 wpa_supplicant_event(drv->ctx,
921 EVENT_INTERFACE_DISABLED, NULL);
925 if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) {
926 if (if_indextoname(ifi->ifi_index, namebuf) &&
927 linux_iface_up(drv->global->ioctl_sock,
928 drv->first_bss.ifname) == 0) {
929 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
930 "event since interface %s is down",
932 } else if (if_nametoindex(drv->first_bss.ifname) == 0) {
933 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
934 "event since interface %s does not exist",
935 drv->first_bss.ifname);
936 } else if (drv->if_removed) {
937 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
938 "event since interface %s is marked "
939 "removed", drv->first_bss.ifname);
941 wpa_printf(MSG_DEBUG, "nl80211: Interface up");
942 drv->if_disabled = 0;
943 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED,
949 * Some drivers send the association event before the operup event--in
950 * this case, lifting operstate in wpa_driver_nl80211_set_operstate()
951 * fails. This will hit us when wpa_supplicant does not need to do
952 * IEEE 802.1X authentication
954 if (drv->operstate == 1 &&
955 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP &&
956 !(ifi->ifi_flags & IFF_RUNNING))
957 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex,
961 attr = (struct rtattr *) buf;
962 rta_len = RTA_ALIGN(sizeof(struct rtattr));
963 while (RTA_OK(attr, attrlen)) {
964 if (attr->rta_type == IFLA_IFNAME) {
965 wpa_driver_nl80211_event_link(
967 ((char *) attr) + rta_len,
968 attr->rta_len - rta_len, 0);
969 } else if (attr->rta_type == IFLA_MASTER)
970 brid = nla_get_u32((struct nlattr *) attr);
971 attr = RTA_NEXT(attr, attrlen);
974 if (ifi->ifi_family == AF_BRIDGE && brid) {
975 /* device has been added to bridge */
976 if_indextoname(brid, namebuf);
977 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s",
979 add_ifidx(drv, brid);
984 static void wpa_driver_nl80211_event_rtm_dellink(void *ctx,
985 struct ifinfomsg *ifi,
988 struct nl80211_global *global = ctx;
989 struct wpa_driver_nl80211_data *drv;
990 int attrlen, rta_len;
994 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len);
996 wpa_printf(MSG_DEBUG, "nl80211: Ignore dellink event for "
997 "foreign ifindex %d", ifi->ifi_index);
1002 attr = (struct rtattr *) buf;
1004 rta_len = RTA_ALIGN(sizeof(struct rtattr));
1005 while (RTA_OK(attr, attrlen)) {
1006 if (attr->rta_type == IFLA_IFNAME) {
1007 wpa_driver_nl80211_event_link(
1009 ((char *) attr) + rta_len,
1010 attr->rta_len - rta_len, 1);
1011 } else if (attr->rta_type == IFLA_MASTER)
1012 brid = nla_get_u32((struct nlattr *) attr);
1013 attr = RTA_NEXT(attr, attrlen);
1016 if (ifi->ifi_family == AF_BRIDGE && brid) {
1017 /* device has been removed from bridge */
1018 char namebuf[IFNAMSIZ];
1019 if_indextoname(brid, namebuf);
1020 wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge "
1021 "%s", brid, namebuf);
1022 del_ifidx(drv, brid);
1027 static void mlme_event_auth(struct wpa_driver_nl80211_data *drv,
1028 const u8 *frame, size_t len)
1030 const struct ieee80211_mgmt *mgmt;
1031 union wpa_event_data event;
1033 wpa_printf(MSG_DEBUG, "nl80211: Authenticate event");
1034 mgmt = (const struct ieee80211_mgmt *) frame;
1035 if (len < 24 + sizeof(mgmt->u.auth)) {
1036 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
1041 os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN);
1042 os_memset(&event, 0, sizeof(event));
1043 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN);
1044 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg);
1045 event.auth.auth_transaction =
1046 le_to_host16(mgmt->u.auth.auth_transaction);
1047 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code);
1048 if (len > 24 + sizeof(mgmt->u.auth)) {
1049 event.auth.ies = mgmt->u.auth.variable;
1050 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth);
1053 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event);
1057 static unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv)
1061 struct nl80211_bss_info_arg arg;
1063 os_memset(&arg, 0, sizeof(arg));
1064 msg = nlmsg_alloc();
1066 goto nla_put_failure;
1068 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
1069 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1072 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
1075 wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the "
1076 "associated BSS from scan results: %u MHz",
1078 return arg.assoc_freq ? arg.assoc_freq : drv->assoc_freq;
1080 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
1081 "(%s)", ret, strerror(-ret));
1084 return drv->assoc_freq;
1088 static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv,
1089 const u8 *frame, size_t len)
1091 const struct ieee80211_mgmt *mgmt;
1092 union wpa_event_data event;
1095 wpa_printf(MSG_DEBUG, "nl80211: Associate event");
1096 mgmt = (const struct ieee80211_mgmt *) frame;
1097 if (len < 24 + sizeof(mgmt->u.assoc_resp)) {
1098 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
1103 status = le_to_host16(mgmt->u.assoc_resp.status_code);
1104 if (status != WLAN_STATUS_SUCCESS) {
1105 os_memset(&event, 0, sizeof(event));
1106 event.assoc_reject.bssid = mgmt->bssid;
1107 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
1108 event.assoc_reject.resp_ies =
1109 (u8 *) mgmt->u.assoc_resp.variable;
1110 event.assoc_reject.resp_ies_len =
1111 len - 24 - sizeof(mgmt->u.assoc_resp);
1113 event.assoc_reject.status_code = status;
1115 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
1119 drv->associated = 1;
1120 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN);
1122 os_memset(&event, 0, sizeof(event));
1123 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
1124 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable;
1125 event.assoc_info.resp_ies_len =
1126 len - 24 - sizeof(mgmt->u.assoc_resp);
1129 event.assoc_info.freq = drv->assoc_freq;
1131 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
1135 static void mlme_event_connect(struct wpa_driver_nl80211_data *drv,
1136 enum nl80211_commands cmd, struct nlattr *status,
1137 struct nlattr *addr, struct nlattr *req_ie,
1138 struct nlattr *resp_ie)
1140 union wpa_event_data event;
1142 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
1144 * Avoid reporting two association events that would confuse
1147 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) "
1148 "when using userspace SME", cmd);
1152 if (cmd == NL80211_CMD_CONNECT)
1153 wpa_printf(MSG_DEBUG, "nl80211: Connect event");
1154 else if (cmd == NL80211_CMD_ROAM)
1155 wpa_printf(MSG_DEBUG, "nl80211: Roam event");
1157 os_memset(&event, 0, sizeof(event));
1158 if (cmd == NL80211_CMD_CONNECT &&
1159 nla_get_u16(status) != WLAN_STATUS_SUCCESS) {
1161 event.assoc_reject.bssid = nla_data(addr);
1163 event.assoc_reject.resp_ies = nla_data(resp_ie);
1164 event.assoc_reject.resp_ies_len = nla_len(resp_ie);
1166 event.assoc_reject.status_code = nla_get_u16(status);
1167 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
1171 drv->associated = 1;
1173 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN);
1176 event.assoc_info.req_ies = nla_data(req_ie);
1177 event.assoc_info.req_ies_len = nla_len(req_ie);
1180 event.assoc_info.resp_ies = nla_data(resp_ie);
1181 event.assoc_info.resp_ies_len = nla_len(resp_ie);
1184 event.assoc_info.freq = nl80211_get_assoc_freq(drv);
1186 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
1190 static void mlme_event_disconnect(struct wpa_driver_nl80211_data *drv,
1191 struct nlattr *reason, struct nlattr *addr,
1192 struct nlattr *by_ap)
1194 union wpa_event_data data;
1195 unsigned int locally_generated = by_ap == NULL;
1197 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
1199 * Avoid reporting two disassociation events that could
1200 * confuse the core code.
1202 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect "
1203 "event when using userspace SME");
1207 if (drv->ignore_next_local_disconnect) {
1208 drv->ignore_next_local_disconnect = 0;
1209 if (locally_generated) {
1210 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect "
1211 "event triggered during reassociation");
1214 wpa_printf(MSG_WARNING, "nl80211: Was expecting local "
1215 "disconnect but got another disconnect "
1219 wpa_printf(MSG_DEBUG, "nl80211: Disconnect event");
1220 drv->associated = 0;
1221 os_memset(&data, 0, sizeof(data));
1223 data.deauth_info.reason_code = nla_get_u16(reason);
1224 data.deauth_info.locally_generated = by_ap == NULL;
1225 wpa_supplicant_event(drv->ctx, EVENT_DEAUTH, &data);
1229 static void mlme_event_ch_switch(struct wpa_driver_nl80211_data *drv,
1230 struct nlattr *freq, struct nlattr *type)
1232 union wpa_event_data data;
1234 int chan_offset = 0;
1236 wpa_printf(MSG_DEBUG, "nl80211: Channel switch event");
1241 switch (nla_get_u32(type)) {
1242 case NL80211_CHAN_NO_HT:
1245 case NL80211_CHAN_HT20:
1247 case NL80211_CHAN_HT40PLUS:
1250 case NL80211_CHAN_HT40MINUS:
1255 data.ch_switch.freq = nla_get_u32(freq);
1256 data.ch_switch.ht_enabled = ht_enabled;
1257 data.ch_switch.ch_offset = chan_offset;
1259 wpa_supplicant_event(drv->ctx, EVENT_CH_SWITCH, &data);
1263 static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv,
1264 enum nl80211_commands cmd, struct nlattr *addr)
1266 union wpa_event_data event;
1267 enum wpa_event_type ev;
1269 if (nla_len(addr) != ETH_ALEN)
1272 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR,
1273 cmd, MAC2STR((u8 *) nla_data(addr)));
1275 if (cmd == NL80211_CMD_AUTHENTICATE)
1276 ev = EVENT_AUTH_TIMED_OUT;
1277 else if (cmd == NL80211_CMD_ASSOCIATE)
1278 ev = EVENT_ASSOC_TIMED_OUT;
1282 os_memset(&event, 0, sizeof(event));
1283 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN);
1284 wpa_supplicant_event(drv->ctx, ev, &event);
1288 static void mlme_event_mgmt(struct wpa_driver_nl80211_data *drv,
1289 struct nlattr *freq, struct nlattr *sig,
1290 const u8 *frame, size_t len)
1292 const struct ieee80211_mgmt *mgmt;
1293 union wpa_event_data event;
1297 wpa_printf(MSG_DEBUG, "nl80211: Frame event");
1298 mgmt = (const struct ieee80211_mgmt *) frame;
1300 wpa_printf(MSG_DEBUG, "nl80211: Too short action frame");
1304 fc = le_to_host16(mgmt->frame_control);
1305 stype = WLAN_FC_GET_STYPE(fc);
1308 ssi_signal = (s32) nla_get_u32(sig);
1310 os_memset(&event, 0, sizeof(event));
1312 event.rx_action.freq = nla_get_u32(freq);
1313 drv->last_mgmt_freq = event.rx_action.freq;
1315 if (stype == WLAN_FC_STYPE_ACTION) {
1316 event.rx_action.da = mgmt->da;
1317 event.rx_action.sa = mgmt->sa;
1318 event.rx_action.bssid = mgmt->bssid;
1319 event.rx_action.category = mgmt->u.action.category;
1320 event.rx_action.data = &mgmt->u.action.category + 1;
1321 event.rx_action.len = frame + len - event.rx_action.data;
1322 wpa_supplicant_event(drv->ctx, EVENT_RX_ACTION, &event);
1324 event.rx_mgmt.frame = frame;
1325 event.rx_mgmt.frame_len = len;
1326 event.rx_mgmt.ssi_signal = ssi_signal;
1327 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
1332 static void mlme_event_mgmt_tx_status(struct wpa_driver_nl80211_data *drv,
1333 struct nlattr *cookie, const u8 *frame,
1334 size_t len, struct nlattr *ack)
1336 union wpa_event_data event;
1337 const struct ieee80211_hdr *hdr;
1340 wpa_printf(MSG_DEBUG, "nl80211: Frame TX status event");
1341 if (!is_ap_interface(drv->nlmode)) {
1347 cookie_val = nla_get_u64(cookie);
1348 wpa_printf(MSG_DEBUG, "nl80211: Action TX status:"
1349 " cookie=0%llx%s (ack=%d)",
1350 (long long unsigned int) cookie_val,
1351 cookie_val == drv->send_action_cookie ?
1352 " (match)" : " (unknown)", ack != NULL);
1353 if (cookie_val != drv->send_action_cookie)
1357 hdr = (const struct ieee80211_hdr *) frame;
1358 fc = le_to_host16(hdr->frame_control);
1360 os_memset(&event, 0, sizeof(event));
1361 event.tx_status.type = WLAN_FC_GET_TYPE(fc);
1362 event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
1363 event.tx_status.dst = hdr->addr1;
1364 event.tx_status.data = frame;
1365 event.tx_status.data_len = len;
1366 event.tx_status.ack = ack != NULL;
1367 wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event);
1371 static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv,
1372 enum wpa_event_type type,
1373 const u8 *frame, size_t len)
1375 const struct ieee80211_mgmt *mgmt;
1376 union wpa_event_data event;
1377 const u8 *bssid = NULL;
1378 u16 reason_code = 0;
1380 if (type == EVENT_DEAUTH)
1381 wpa_printf(MSG_DEBUG, "nl80211: Deauthenticate event");
1383 wpa_printf(MSG_DEBUG, "nl80211: Disassociate event");
1385 mgmt = (const struct ieee80211_mgmt *) frame;
1387 bssid = mgmt->bssid;
1389 if (drv->associated != 0 &&
1390 os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 &&
1391 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) {
1393 * We have presumably received this deauth as a
1394 * response to a clear_state_mismatch() outgoing
1395 * deauth. Don't let it take us offline!
1397 wpa_printf(MSG_DEBUG, "nl80211: Deauth received "
1398 "from Unknown BSSID " MACSTR " -- ignoring",
1404 drv->associated = 0;
1405 os_memset(&event, 0, sizeof(event));
1407 /* Note: Same offset for Reason Code in both frame subtypes */
1408 if (len >= 24 + sizeof(mgmt->u.deauth))
1409 reason_code = le_to_host16(mgmt->u.deauth.reason_code);
1411 if (type == EVENT_DISASSOC) {
1412 event.disassoc_info.locally_generated =
1413 !os_memcmp(mgmt->sa, drv->first_bss.addr, ETH_ALEN);
1414 event.disassoc_info.addr = bssid;
1415 event.disassoc_info.reason_code = reason_code;
1416 if (frame + len > mgmt->u.disassoc.variable) {
1417 event.disassoc_info.ie = mgmt->u.disassoc.variable;
1418 event.disassoc_info.ie_len = frame + len -
1419 mgmt->u.disassoc.variable;
1422 event.deauth_info.locally_generated =
1423 !os_memcmp(mgmt->sa, drv->first_bss.addr, ETH_ALEN);
1424 event.deauth_info.addr = bssid;
1425 event.deauth_info.reason_code = reason_code;
1426 if (frame + len > mgmt->u.deauth.variable) {
1427 event.deauth_info.ie = mgmt->u.deauth.variable;
1428 event.deauth_info.ie_len = frame + len -
1429 mgmt->u.deauth.variable;
1433 wpa_supplicant_event(drv->ctx, type, &event);
1437 static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv,
1438 enum wpa_event_type type,
1439 const u8 *frame, size_t len)
1441 const struct ieee80211_mgmt *mgmt;
1442 union wpa_event_data event;
1443 u16 reason_code = 0;
1445 if (type == EVENT_UNPROT_DEAUTH)
1446 wpa_printf(MSG_DEBUG, "nl80211: Unprot Deauthenticate event");
1448 wpa_printf(MSG_DEBUG, "nl80211: Unprot Disassociate event");
1453 mgmt = (const struct ieee80211_mgmt *) frame;
1455 os_memset(&event, 0, sizeof(event));
1456 /* Note: Same offset for Reason Code in both frame subtypes */
1457 if (len >= 24 + sizeof(mgmt->u.deauth))
1458 reason_code = le_to_host16(mgmt->u.deauth.reason_code);
1460 if (type == EVENT_UNPROT_DISASSOC) {
1461 event.unprot_disassoc.sa = mgmt->sa;
1462 event.unprot_disassoc.da = mgmt->da;
1463 event.unprot_disassoc.reason_code = reason_code;
1465 event.unprot_deauth.sa = mgmt->sa;
1466 event.unprot_deauth.da = mgmt->da;
1467 event.unprot_deauth.reason_code = reason_code;
1470 wpa_supplicant_event(drv->ctx, type, &event);
1474 static void mlme_event(struct wpa_driver_nl80211_data *drv,
1475 enum nl80211_commands cmd, struct nlattr *frame,
1476 struct nlattr *addr, struct nlattr *timed_out,
1477 struct nlattr *freq, struct nlattr *ack,
1478 struct nlattr *cookie, struct nlattr *sig)
1480 if (timed_out && addr) {
1481 mlme_timeout_event(drv, cmd, addr);
1485 if (frame == NULL) {
1486 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d without frame "
1491 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d", cmd);
1492 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame",
1493 nla_data(frame), nla_len(frame));
1496 case NL80211_CMD_AUTHENTICATE:
1497 mlme_event_auth(drv, nla_data(frame), nla_len(frame));
1499 case NL80211_CMD_ASSOCIATE:
1500 mlme_event_assoc(drv, nla_data(frame), nla_len(frame));
1502 case NL80211_CMD_DEAUTHENTICATE:
1503 mlme_event_deauth_disassoc(drv, EVENT_DEAUTH,
1504 nla_data(frame), nla_len(frame));
1506 case NL80211_CMD_DISASSOCIATE:
1507 mlme_event_deauth_disassoc(drv, EVENT_DISASSOC,
1508 nla_data(frame), nla_len(frame));
1510 case NL80211_CMD_FRAME:
1511 mlme_event_mgmt(drv, freq, sig, nla_data(frame),
1514 case NL80211_CMD_FRAME_TX_STATUS:
1515 mlme_event_mgmt_tx_status(drv, cookie, nla_data(frame),
1516 nla_len(frame), ack);
1518 case NL80211_CMD_UNPROT_DEAUTHENTICATE:
1519 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH,
1520 nla_data(frame), nla_len(frame));
1522 case NL80211_CMD_UNPROT_DISASSOCIATE:
1523 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC,
1524 nla_data(frame), nla_len(frame));
1532 static void mlme_event_michael_mic_failure(struct wpa_driver_nl80211_data *drv,
1533 struct nlattr *tb[])
1535 union wpa_event_data data;
1537 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure");
1538 os_memset(&data, 0, sizeof(data));
1539 if (tb[NL80211_ATTR_MAC]) {
1540 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address",
1541 nla_data(tb[NL80211_ATTR_MAC]),
1542 nla_len(tb[NL80211_ATTR_MAC]));
1543 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]);
1545 if (tb[NL80211_ATTR_KEY_SEQ]) {
1546 wpa_hexdump(MSG_DEBUG, "nl80211: TSC",
1547 nla_data(tb[NL80211_ATTR_KEY_SEQ]),
1548 nla_len(tb[NL80211_ATTR_KEY_SEQ]));
1550 if (tb[NL80211_ATTR_KEY_TYPE]) {
1551 enum nl80211_key_type key_type =
1552 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]);
1553 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type);
1554 if (key_type == NL80211_KEYTYPE_PAIRWISE)
1555 data.michael_mic_failure.unicast = 1;
1557 data.michael_mic_failure.unicast = 1;
1559 if (tb[NL80211_ATTR_KEY_IDX]) {
1560 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]);
1561 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id);
1564 wpa_supplicant_event(drv->ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
1568 static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv,
1569 struct nlattr *tb[])
1571 if (tb[NL80211_ATTR_MAC] == NULL) {
1572 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined "
1576 os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
1577 drv->associated = 1;
1578 wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined",
1579 MAC2STR(drv->bssid));
1581 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL);
1585 static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv,
1586 int cancel_event, struct nlattr *tb[])
1588 unsigned int freq, chan_type, duration;
1589 union wpa_event_data data;
1592 if (tb[NL80211_ATTR_WIPHY_FREQ])
1593 freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]);
1597 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
1598 chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1602 if (tb[NL80211_ATTR_DURATION])
1603 duration = nla_get_u32(tb[NL80211_ATTR_DURATION]);
1607 if (tb[NL80211_ATTR_COOKIE])
1608 cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
1612 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d "
1613 "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))",
1614 cancel_event, freq, chan_type, duration,
1615 (long long unsigned int) cookie,
1616 cookie == drv->remain_on_chan_cookie ? "match" : "unknown");
1618 if (cookie != drv->remain_on_chan_cookie)
1619 return; /* not for us */
1622 drv->pending_remain_on_chan = 0;
1624 os_memset(&data, 0, sizeof(data));
1625 data.remain_on_channel.freq = freq;
1626 data.remain_on_channel.duration = duration;
1627 wpa_supplicant_event(drv->ctx, cancel_event ?
1628 EVENT_CANCEL_REMAIN_ON_CHANNEL :
1629 EVENT_REMAIN_ON_CHANNEL, &data);
1633 static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted,
1634 struct nlattr *tb[])
1636 union wpa_event_data event;
1639 struct scan_info *info;
1640 #define MAX_REPORT_FREQS 50
1641 int freqs[MAX_REPORT_FREQS];
1644 if (drv->scan_for_auth) {
1645 drv->scan_for_auth = 0;
1646 wpa_printf(MSG_DEBUG, "nl80211: Scan results for missing "
1647 "cfg80211 BSS entry");
1648 wpa_driver_nl80211_authenticate_retry(drv);
1652 os_memset(&event, 0, sizeof(event));
1653 info = &event.scan_info;
1654 info->aborted = aborted;
1656 if (tb[NL80211_ATTR_SCAN_SSIDS]) {
1657 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) {
1658 struct wpa_driver_scan_ssid *s =
1659 &info->ssids[info->num_ssids];
1660 s->ssid = nla_data(nl);
1661 s->ssid_len = nla_len(nl);
1663 if (info->num_ssids == WPAS_MAX_SCAN_SSIDS)
1667 if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) {
1668 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem)
1670 freqs[num_freqs] = nla_get_u32(nl);
1672 if (num_freqs == MAX_REPORT_FREQS - 1)
1675 info->freqs = freqs;
1676 info->num_freqs = num_freqs;
1678 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event);
1682 static int get_link_signal(struct nl_msg *msg, void *arg)
1684 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1685 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1686 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1];
1687 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = {
1688 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 },
1690 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1];
1691 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = {
1692 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 },
1693 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 },
1694 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG },
1695 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG },
1697 struct wpa_signal_info *sig_change = arg;
1699 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1700 genlmsg_attrlen(gnlh, 0), NULL);
1701 if (!tb[NL80211_ATTR_STA_INFO] ||
1702 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX,
1703 tb[NL80211_ATTR_STA_INFO], policy))
1705 if (!sinfo[NL80211_STA_INFO_SIGNAL])
1708 sig_change->current_signal =
1709 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]);
1711 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) {
1712 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX,
1713 sinfo[NL80211_STA_INFO_TX_BITRATE],
1715 sig_change->current_txrate = 0;
1717 if (rinfo[NL80211_RATE_INFO_BITRATE]) {
1718 sig_change->current_txrate =
1720 NL80211_RATE_INFO_BITRATE]) * 100;
1729 static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv,
1730 struct wpa_signal_info *sig)
1734 sig->current_signal = -9999;
1735 sig->current_txrate = 0;
1737 msg = nlmsg_alloc();
1741 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION);
1743 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1744 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
1746 return send_and_recv_msgs(drv, msg, get_link_signal, sig);
1753 static int get_link_noise(struct nl_msg *msg, void *arg)
1755 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1756 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1757 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
1758 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
1759 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
1760 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
1762 struct wpa_signal_info *sig_change = arg;
1764 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1765 genlmsg_attrlen(gnlh, 0), NULL);
1767 if (!tb[NL80211_ATTR_SURVEY_INFO]) {
1768 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!");
1772 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
1773 tb[NL80211_ATTR_SURVEY_INFO],
1775 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested "
1780 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY])
1783 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) !=
1784 sig_change->frequency)
1787 if (!sinfo[NL80211_SURVEY_INFO_NOISE])
1790 sig_change->current_noise =
1791 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
1797 static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv,
1798 struct wpa_signal_info *sig_change)
1802 sig_change->current_noise = 9999;
1803 sig_change->frequency = drv->assoc_freq;
1805 msg = nlmsg_alloc();
1809 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
1811 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1813 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change);
1820 static int get_noise_for_scan_results(struct nl_msg *msg, void *arg)
1822 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1823 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1824 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
1825 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
1826 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
1827 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
1829 struct wpa_scan_results *scan_results = arg;
1830 struct wpa_scan_res *scan_res;
1833 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1834 genlmsg_attrlen(gnlh, 0), NULL);
1836 if (!tb[NL80211_ATTR_SURVEY_INFO]) {
1837 wpa_printf(MSG_DEBUG, "nl80211: Survey data missing");
1841 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
1842 tb[NL80211_ATTR_SURVEY_INFO],
1844 wpa_printf(MSG_DEBUG, "nl80211: Failed to parse nested "
1849 if (!sinfo[NL80211_SURVEY_INFO_NOISE])
1852 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY])
1855 for (i = 0; i < scan_results->num; ++i) {
1856 scan_res = scan_results->res[i];
1859 if ((int) nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) !=
1862 if (!(scan_res->flags & WPA_SCAN_NOISE_INVALID))
1864 scan_res->noise = (s8)
1865 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
1866 scan_res->flags &= ~WPA_SCAN_NOISE_INVALID;
1873 static int nl80211_get_noise_for_scan_results(
1874 struct wpa_driver_nl80211_data *drv,
1875 struct wpa_scan_results *scan_res)
1879 msg = nlmsg_alloc();
1883 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
1885 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1887 return send_and_recv_msgs(drv, msg, get_noise_for_scan_results,
1895 static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv,
1896 struct nlattr *tb[])
1898 static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
1899 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
1900 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 },
1901 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
1902 [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 },
1904 struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1];
1905 enum nl80211_cqm_rssi_threshold_event event;
1906 union wpa_event_data ed;
1907 struct wpa_signal_info sig;
1910 if (tb[NL80211_ATTR_CQM] == NULL ||
1911 nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM],
1913 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event");
1917 os_memset(&ed, 0, sizeof(ed));
1919 if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) {
1920 if (!tb[NL80211_ATTR_MAC])
1922 os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]),
1924 wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed);
1928 if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL)
1930 event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]);
1932 if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) {
1933 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
1934 "event: RSSI high");
1935 ed.signal_change.above_threshold = 1;
1936 } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) {
1937 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
1939 ed.signal_change.above_threshold = 0;
1943 res = nl80211_get_link_signal(drv, &sig);
1945 ed.signal_change.current_signal = sig.current_signal;
1946 ed.signal_change.current_txrate = sig.current_txrate;
1947 wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d",
1948 sig.current_signal, sig.current_txrate);
1951 res = nl80211_get_link_noise(drv, &sig);
1953 ed.signal_change.current_noise = sig.current_noise;
1954 wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm",
1958 wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed);
1962 static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv,
1966 union wpa_event_data data;
1968 if (tb[NL80211_ATTR_MAC] == NULL)
1970 addr = nla_data(tb[NL80211_ATTR_MAC]);
1971 wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr));
1973 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) {
1976 if (tb[NL80211_ATTR_IE]) {
1977 ies = nla_data(tb[NL80211_ATTR_IE]);
1978 ies_len = nla_len(tb[NL80211_ATTR_IE]);
1980 wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len);
1981 drv_event_assoc(drv->ctx, addr, ies, ies_len, 0);
1985 if (drv->nlmode != NL80211_IFTYPE_ADHOC)
1988 os_memset(&data, 0, sizeof(data));
1989 os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN);
1990 wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data);
1994 static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv,
1998 union wpa_event_data data;
2000 if (tb[NL80211_ATTR_MAC] == NULL)
2002 addr = nla_data(tb[NL80211_ATTR_MAC]);
2003 wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR,
2006 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) {
2007 drv_event_disassoc(drv->ctx, addr);
2011 if (drv->nlmode != NL80211_IFTYPE_ADHOC)
2014 os_memset(&data, 0, sizeof(data));
2015 os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN);
2016 wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data);
2020 static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv,
2023 struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA];
2024 static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = {
2025 [NL80211_REKEY_DATA_KEK] = {
2026 .minlen = NL80211_KEK_LEN,
2027 .maxlen = NL80211_KEK_LEN,
2029 [NL80211_REKEY_DATA_KCK] = {
2030 .minlen = NL80211_KCK_LEN,
2031 .maxlen = NL80211_KCK_LEN,
2033 [NL80211_REKEY_DATA_REPLAY_CTR] = {
2034 .minlen = NL80211_REPLAY_CTR_LEN,
2035 .maxlen = NL80211_REPLAY_CTR_LEN,
2038 union wpa_event_data data;
2040 if (!tb[NL80211_ATTR_MAC])
2042 if (!tb[NL80211_ATTR_REKEY_DATA])
2044 if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA,
2045 tb[NL80211_ATTR_REKEY_DATA], rekey_policy))
2047 if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR])
2050 os_memset(&data, 0, sizeof(data));
2051 data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]);
2052 wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR,
2053 MAC2STR(data.driver_gtk_rekey.bssid));
2054 data.driver_gtk_rekey.replay_ctr =
2055 nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]);
2056 wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter",
2057 data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN);
2058 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data);
2062 static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv,
2065 struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE];
2066 static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = {
2067 [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 },
2068 [NL80211_PMKSA_CANDIDATE_BSSID] = {
2072 [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG },
2074 union wpa_event_data data;
2076 wpa_printf(MSG_DEBUG, "nl80211: PMKSA candidate event");
2078 if (!tb[NL80211_ATTR_PMKSA_CANDIDATE])
2080 if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE,
2081 tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy))
2083 if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] ||
2084 !cand[NL80211_PMKSA_CANDIDATE_BSSID])
2087 os_memset(&data, 0, sizeof(data));
2088 os_memcpy(data.pmkid_candidate.bssid,
2089 nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN);
2090 data.pmkid_candidate.index =
2091 nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]);
2092 data.pmkid_candidate.preauth =
2093 cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL;
2094 wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data);
2098 static void nl80211_client_probe_event(struct wpa_driver_nl80211_data *drv,
2101 union wpa_event_data data;
2103 wpa_printf(MSG_DEBUG, "nl80211: Probe client event");
2105 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_ACK])
2108 os_memset(&data, 0, sizeof(data));
2109 os_memcpy(data.client_poll.addr,
2110 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
2112 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_CLIENT_POLL_OK, &data);
2116 static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb,
2119 struct wpa_driver_nl80211_data *drv = bss->drv;
2120 union wpa_event_data event;
2122 if (!tb[NL80211_ATTR_MAC])
2125 os_memset(&event, 0, sizeof(event));
2126 event.rx_from_unknown.bssid = bss->addr;
2127 event.rx_from_unknown.addr = nla_data(tb[NL80211_ATTR_MAC]);
2128 event.rx_from_unknown.wds = wds;
2130 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event);
2134 static void do_process_drv_event(struct wpa_driver_nl80211_data *drv,
2135 int cmd, struct nlattr **tb)
2137 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED &&
2138 (cmd == NL80211_CMD_NEW_SCAN_RESULTS ||
2139 cmd == NL80211_CMD_SCAN_ABORTED)) {
2140 wpa_driver_nl80211_set_mode(&drv->first_bss,
2141 drv->ap_scan_as_station);
2142 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
2146 case NL80211_CMD_TRIGGER_SCAN:
2147 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger");
2149 case NL80211_CMD_START_SCHED_SCAN:
2150 wpa_printf(MSG_DEBUG, "nl80211: Sched scan started");
2152 case NL80211_CMD_SCHED_SCAN_STOPPED:
2153 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stopped");
2154 wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL);
2156 case NL80211_CMD_NEW_SCAN_RESULTS:
2157 wpa_printf(MSG_DEBUG, "nl80211: New scan results available");
2158 drv->scan_complete_events = 1;
2159 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
2161 send_scan_event(drv, 0, tb);
2163 case NL80211_CMD_SCHED_SCAN_RESULTS:
2164 wpa_printf(MSG_DEBUG,
2165 "nl80211: New sched scan results available");
2166 send_scan_event(drv, 0, tb);
2168 case NL80211_CMD_SCAN_ABORTED:
2169 wpa_printf(MSG_DEBUG, "nl80211: Scan aborted");
2171 * Need to indicate that scan results are available in order
2172 * not to make wpa_supplicant stop its scanning.
2174 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
2176 send_scan_event(drv, 1, tb);
2178 case NL80211_CMD_AUTHENTICATE:
2179 case NL80211_CMD_ASSOCIATE:
2180 case NL80211_CMD_DEAUTHENTICATE:
2181 case NL80211_CMD_DISASSOCIATE:
2182 case NL80211_CMD_FRAME_TX_STATUS:
2183 case NL80211_CMD_UNPROT_DEAUTHENTICATE:
2184 case NL80211_CMD_UNPROT_DISASSOCIATE:
2185 mlme_event(drv, cmd, tb[NL80211_ATTR_FRAME],
2186 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT],
2187 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK],
2188 tb[NL80211_ATTR_COOKIE],
2189 tb[NL80211_ATTR_RX_SIGNAL_DBM]);
2191 case NL80211_CMD_CONNECT:
2192 case NL80211_CMD_ROAM:
2193 mlme_event_connect(drv, cmd,
2194 tb[NL80211_ATTR_STATUS_CODE],
2195 tb[NL80211_ATTR_MAC],
2196 tb[NL80211_ATTR_REQ_IE],
2197 tb[NL80211_ATTR_RESP_IE]);
2199 case NL80211_CMD_CH_SWITCH_NOTIFY:
2200 mlme_event_ch_switch(drv, tb[NL80211_ATTR_WIPHY_FREQ],
2201 tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
2203 case NL80211_CMD_DISCONNECT:
2204 mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE],
2205 tb[NL80211_ATTR_MAC],
2206 tb[NL80211_ATTR_DISCONNECTED_BY_AP]);
2208 case NL80211_CMD_MICHAEL_MIC_FAILURE:
2209 mlme_event_michael_mic_failure(drv, tb);
2211 case NL80211_CMD_JOIN_IBSS:
2212 mlme_event_join_ibss(drv, tb);
2214 case NL80211_CMD_REMAIN_ON_CHANNEL:
2215 mlme_event_remain_on_channel(drv, 0, tb);
2217 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL:
2218 mlme_event_remain_on_channel(drv, 1, tb);
2220 case NL80211_CMD_NOTIFY_CQM:
2221 nl80211_cqm_event(drv, tb);
2223 case NL80211_CMD_REG_CHANGE:
2224 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change");
2225 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED,
2228 case NL80211_CMD_REG_BEACON_HINT:
2229 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint");
2230 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED,
2233 case NL80211_CMD_NEW_STATION:
2234 nl80211_new_station_event(drv, tb);
2236 case NL80211_CMD_DEL_STATION:
2237 nl80211_del_station_event(drv, tb);
2239 case NL80211_CMD_SET_REKEY_OFFLOAD:
2240 nl80211_rekey_offload_event(drv, tb);
2242 case NL80211_CMD_PMKSA_CANDIDATE:
2243 nl80211_pmksa_candidate_event(drv, tb);
2245 case NL80211_CMD_PROBE_CLIENT:
2246 nl80211_client_probe_event(drv, tb);
2249 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event "
2256 static int process_drv_event(struct nl_msg *msg, void *arg)
2258 struct wpa_driver_nl80211_data *drv = arg;
2259 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2260 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2262 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2263 genlmsg_attrlen(gnlh, 0), NULL);
2265 if (tb[NL80211_ATTR_IFINDEX]) {
2266 int ifindex = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
2267 if (ifindex != drv->ifindex && !have_ifidx(drv, ifindex)) {
2268 wpa_printf(MSG_DEBUG, "nl80211: Ignored event (cmd=%d)"
2269 " for foreign interface (ifindex %d)",
2270 gnlh->cmd, ifindex);
2275 do_process_drv_event(drv, gnlh->cmd, tb);
2280 static int process_global_event(struct nl_msg *msg, void *arg)
2282 struct nl80211_global *global = arg;
2283 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2284 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2285 struct wpa_driver_nl80211_data *drv, *tmp;
2288 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2289 genlmsg_attrlen(gnlh, 0), NULL);
2291 if (tb[NL80211_ATTR_IFINDEX])
2292 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
2294 dl_list_for_each_safe(drv, tmp, &global->interfaces,
2295 struct wpa_driver_nl80211_data, list) {
2296 if (ifidx == -1 || ifidx == drv->ifindex ||
2297 have_ifidx(drv, ifidx))
2298 do_process_drv_event(drv, gnlh->cmd, tb);
2305 static int process_bss_event(struct nl_msg *msg, void *arg)
2307 struct i802_bss *bss = arg;
2308 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2309 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2311 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2312 genlmsg_attrlen(gnlh, 0), NULL);
2314 switch (gnlh->cmd) {
2315 case NL80211_CMD_FRAME:
2316 case NL80211_CMD_FRAME_TX_STATUS:
2317 mlme_event(bss->drv, gnlh->cmd, tb[NL80211_ATTR_FRAME],
2318 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT],
2319 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK],
2320 tb[NL80211_ATTR_COOKIE],
2321 tb[NL80211_ATTR_RX_SIGNAL_DBM]);
2323 case NL80211_CMD_UNEXPECTED_FRAME:
2324 nl80211_spurious_frame(bss, tb, 0);
2326 case NL80211_CMD_UNEXPECTED_4ADDR_FRAME:
2327 nl80211_spurious_frame(bss, tb, 1);
2330 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event "
2331 "(cmd=%d)", gnlh->cmd);
2339 static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx,
2342 struct nl_cb *cb = eloop_ctx;
2344 wpa_printf(MSG_DEBUG, "nl80211: Event message available");
2346 nl_recvmsgs(handle, cb);
2351 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain
2352 * @priv: driver_nl80211 private data
2353 * @alpha2_arg: country to which to switch to
2354 * Returns: 0 on success, -1 on failure
2356 * This asks nl80211 to set the regulatory domain for given
2357 * country ISO / IEC alpha2.
2359 static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg)
2361 struct i802_bss *bss = priv;
2362 struct wpa_driver_nl80211_data *drv = bss->drv;
2366 msg = nlmsg_alloc();
2370 alpha2[0] = alpha2_arg[0];
2371 alpha2[1] = alpha2_arg[1];
2374 nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG);
2376 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2);
2377 if (send_and_recv_msgs(drv, msg, NULL, NULL))
2386 struct wiphy_info_data {
2387 struct wpa_driver_capa *capa;
2389 unsigned int error:1;
2390 unsigned int device_ap_sme:1;
2391 unsigned int poll_command_supported:1;
2392 unsigned int data_tx_status:1;
2393 unsigned int monitor_supported:1;
2397 static unsigned int probe_resp_offload_support(int supp_protocols)
2399 unsigned int prot = 0;
2401 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS)
2402 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS;
2403 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2)
2404 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2;
2405 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P)
2406 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P;
2407 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U)
2408 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING;
2414 static int wiphy_info_handler(struct nl_msg *msg, void *arg)
2416 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2417 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2418 struct wiphy_info_data *info = arg;
2419 int p2p_go_supported = 0, p2p_client_supported = 0;
2420 int p2p_concurrent = 0, p2p_multichan_concurrent = 0;
2421 int auth_supported = 0, connect_supported = 0;
2422 struct wpa_driver_capa *capa = info->capa;
2423 static struct nla_policy
2424 iface_combination_policy[NUM_NL80211_IFACE_COMB] = {
2425 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED },
2426 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 },
2427 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG },
2428 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 },
2430 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = {
2431 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED },
2432 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 },
2435 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2436 genlmsg_attrlen(gnlh, 0), NULL);
2438 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS])
2439 capa->max_scan_ssids =
2440 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]);
2442 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS])
2443 capa->max_sched_scan_ssids =
2444 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]);
2446 if (tb[NL80211_ATTR_MAX_MATCH_SETS])
2447 capa->max_match_sets =
2448 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]);
2450 if (tb[NL80211_ATTR_SUPPORTED_IFTYPES]) {
2451 struct nlattr *nl_mode;
2453 nla_for_each_nested(nl_mode,
2454 tb[NL80211_ATTR_SUPPORTED_IFTYPES], i) {
2455 switch (nla_type(nl_mode)) {
2456 case NL80211_IFTYPE_AP:
2457 capa->flags |= WPA_DRIVER_FLAGS_AP;
2459 case NL80211_IFTYPE_P2P_GO:
2460 p2p_go_supported = 1;
2462 case NL80211_IFTYPE_P2P_CLIENT:
2463 p2p_client_supported = 1;
2465 case NL80211_IFTYPE_MONITOR:
2466 info->monitor_supported = 1;
2472 if (tb[NL80211_ATTR_INTERFACE_COMBINATIONS]) {
2473 struct nlattr *nl_combi;
2476 nla_for_each_nested(nl_combi,
2477 tb[NL80211_ATTR_INTERFACE_COMBINATIONS],
2479 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB];
2480 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT];
2481 struct nlattr *nl_limit, *nl_mode;
2482 int err, rem_limit, rem_mode;
2483 int combination_has_p2p = 0, combination_has_mgd = 0;
2485 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB,
2487 iface_combination_policy);
2488 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] ||
2489 !tb_comb[NL80211_IFACE_COMB_MAXNUM] ||
2490 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS])
2491 goto broken_combination;
2493 nla_for_each_nested(nl_limit,
2494 tb_comb[NL80211_IFACE_COMB_LIMITS],
2496 err = nla_parse_nested(tb_limit,
2497 MAX_NL80211_IFACE_LIMIT,
2499 iface_limit_policy);
2501 !tb_limit[NL80211_IFACE_LIMIT_TYPES])
2502 goto broken_combination;
2504 nla_for_each_nested(
2506 tb_limit[NL80211_IFACE_LIMIT_TYPES],
2508 int ift = nla_type(nl_mode);
2509 if (ift == NL80211_IFTYPE_P2P_GO ||
2510 ift == NL80211_IFTYPE_P2P_CLIENT)
2511 combination_has_p2p = 1;
2512 if (ift == NL80211_IFTYPE_STATION)
2513 combination_has_mgd = 1;
2515 if (combination_has_p2p && combination_has_mgd)
2519 if (combination_has_p2p && combination_has_mgd) {
2521 if (nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) > 1)
2522 p2p_multichan_concurrent = 1;
2531 if (tb[NL80211_ATTR_SUPPORTED_COMMANDS]) {
2532 struct nlattr *nl_cmd;
2535 nla_for_each_nested(nl_cmd,
2536 tb[NL80211_ATTR_SUPPORTED_COMMANDS], i) {
2537 switch (nla_get_u32(nl_cmd)) {
2538 case NL80211_CMD_AUTHENTICATE:
2541 case NL80211_CMD_CONNECT:
2542 connect_supported = 1;
2544 case NL80211_CMD_START_SCHED_SCAN:
2545 capa->sched_scan_supported = 1;
2547 case NL80211_CMD_PROBE_CLIENT:
2548 info->poll_command_supported = 1;
2554 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) {
2555 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based "
2557 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX;
2560 if (tb[NL80211_ATTR_ROAM_SUPPORT]) {
2561 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming");
2562 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION;
2565 /* default to 5000 since early versions of mac80211 don't set it */
2566 capa->max_remain_on_chan = 5000;
2568 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD])
2569 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD;
2571 if (tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION])
2572 capa->max_remain_on_chan =
2573 nla_get_u32(tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]);
2576 capa->flags |= WPA_DRIVER_FLAGS_SME;
2577 else if (!connect_supported) {
2578 wpa_printf(MSG_INFO, "nl80211: Driver does not support "
2579 "authentication/association or connect commands");
2583 if (p2p_go_supported && p2p_client_supported)
2584 capa->flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE;
2585 if (p2p_concurrent) {
2586 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
2587 "interface (driver advertised support)");
2588 capa->flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
2589 capa->flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
2591 if (p2p_multichan_concurrent) {
2592 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel "
2593 "concurrent (driver advertised support)");
2595 WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT;
2599 if (tb[NL80211_ATTR_TDLS_SUPPORT]) {
2600 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported");
2601 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT;
2603 if (tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]) {
2604 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup");
2606 WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP;
2610 if (tb[NL80211_ATTR_DEVICE_AP_SME])
2611 info->device_ap_sme = 1;
2613 if (tb[NL80211_ATTR_FEATURE_FLAGS]) {
2614 u32 flags = nla_get_u32(tb[NL80211_ATTR_FEATURE_FLAGS]);
2616 if (flags & NL80211_FEATURE_SK_TX_STATUS)
2617 info->data_tx_status = 1;
2619 if (flags & NL80211_FEATURE_INACTIVITY_TIMER)
2620 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER;
2622 if (flags & NL80211_FEATURE_SAE)
2623 capa->flags |= WPA_DRIVER_FLAGS_SAE;
2626 if (tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]) {
2628 nla_get_u32(tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]);
2629 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response "
2630 "offload in AP mode");
2631 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD;
2632 capa->probe_resp_offloads =
2633 probe_resp_offload_support(protocols);
2640 static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv,
2641 struct wiphy_info_data *info)
2645 os_memset(info, 0, sizeof(*info));
2646 info->capa = &drv->capa;
2648 msg = nlmsg_alloc();
2652 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY);
2654 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->first_bss.ifindex);
2656 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info) == 0)
2665 static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
2667 struct wiphy_info_data info;
2668 if (wpa_driver_nl80211_get_info(drv, &info))
2674 drv->has_capability = 1;
2675 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */
2676 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
2677 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
2678 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
2679 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
2680 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 |
2681 WPA_DRIVER_CAPA_ENC_WEP104 |
2682 WPA_DRIVER_CAPA_ENC_TKIP |
2683 WPA_DRIVER_CAPA_ENC_CCMP;
2684 drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
2685 WPA_DRIVER_AUTH_SHARED |
2686 WPA_DRIVER_AUTH_LEAP;
2688 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES;
2689 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE;
2690 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
2692 if (!info.device_ap_sme) {
2693 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS;
2696 * No AP SME is currently assumed to also indicate no AP MLME
2697 * in the driver/firmware.
2699 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME;
2702 drv->device_ap_sme = info.device_ap_sme;
2703 drv->poll_command_supported = info.poll_command_supported;
2704 drv->data_tx_status = info.data_tx_status;
2707 * If poll command and tx status are supported, mac80211 is new enough
2708 * to have everything we need to not need monitor interfaces.
2710 drv->use_monitor = !info.poll_command_supported || !info.data_tx_status;
2712 if (drv->device_ap_sme && drv->use_monitor) {
2714 * Non-mac80211 drivers may not support monitor interface.
2715 * Make sure we do not get stuck with incorrect capability here
2716 * by explicitly testing this.
2718 if (!info.monitor_supported) {
2719 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor "
2720 "with device_ap_sme since no monitor mode "
2721 "support detected");
2722 drv->use_monitor = 0;
2727 * If we aren't going to use monitor interfaces, but the
2728 * driver doesn't support data TX status, we won't get TX
2729 * status for EAPOL frames.
2731 if (!drv->use_monitor && !info.data_tx_status)
2732 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
2739 static int android_genl_ctrl_resolve(struct nl_handle *handle,
2743 * Android ICS has very minimal genl_ctrl_resolve() implementation, so
2744 * need to work around that.
2746 struct nl_cache *cache = NULL;
2747 struct genl_family *nl80211 = NULL;
2750 if (genl_ctrl_alloc_cache(handle, &cache) < 0) {
2751 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
2756 nl80211 = genl_ctrl_search_by_name(cache, name);
2757 if (nl80211 == NULL)
2760 id = genl_family_get_id(nl80211);
2764 genl_family_put(nl80211);
2766 nl_cache_free(cache);
2770 #define genl_ctrl_resolve android_genl_ctrl_resolve
2771 #endif /* ANDROID */
2774 static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global)
2778 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
2779 if (global->nl_cb == NULL) {
2780 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
2785 global->nl = nl_create_handle(global->nl_cb, "nl");
2786 if (global->nl == NULL)
2789 global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211");
2790 if (global->nl80211_id < 0) {
2791 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not "
2796 global->nl_event = nl_create_handle(global->nl_cb, "event");
2797 if (global->nl_event == NULL)
2800 ret = nl_get_multicast_id(global, "nl80211", "scan");
2802 ret = nl_socket_add_membership(global->nl_event, ret);
2804 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
2805 "membership for scan events: %d (%s)",
2806 ret, strerror(-ret));
2810 ret = nl_get_multicast_id(global, "nl80211", "mlme");
2812 ret = nl_socket_add_membership(global->nl_event, ret);
2814 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
2815 "membership for mlme events: %d (%s)",
2816 ret, strerror(-ret));
2820 ret = nl_get_multicast_id(global, "nl80211", "regulatory");
2822 ret = nl_socket_add_membership(global->nl_event, ret);
2824 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast "
2825 "membership for regulatory events: %d (%s)",
2826 ret, strerror(-ret));
2827 /* Continue without regulatory events */
2830 nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
2831 no_seq_check, NULL);
2832 nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
2833 process_global_event, global);
2835 eloop_register_read_sock(nl_socket_get_fd(global->nl_event),
2836 wpa_driver_nl80211_event_receive,
2837 global->nl_cb, global->nl_event);
2842 nl_destroy_handles(&global->nl_event);
2843 nl_destroy_handles(&global->nl);
2844 nl_cb_put(global->nl_cb);
2845 global->nl_cb = NULL;
2850 static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv)
2852 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
2854 wpa_printf(MSG_ERROR, "nl80211: Failed to alloc cb struct");
2858 nl_cb_set(drv->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
2859 no_seq_check, NULL);
2860 nl_cb_set(drv->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
2861 process_drv_event, drv);
2867 static void wpa_driver_nl80211_rfkill_blocked(void *ctx)
2869 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked");
2871 * This may be for any interface; use ifdown event to disable
2877 static void wpa_driver_nl80211_rfkill_unblocked(void *ctx)
2879 struct wpa_driver_nl80211_data *drv = ctx;
2880 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked");
2881 if (linux_set_iface_flags(drv->global->ioctl_sock,
2882 drv->first_bss.ifname, 1)) {
2883 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP "
2884 "after rfkill unblock");
2887 /* rtnetlink ifup handler will report interface as enabled */
2891 static void nl80211_get_phy_name(struct wpa_driver_nl80211_data *drv)
2893 /* Find phy (radio) to which this interface belongs */
2897 drv->phyname[0] = '\0';
2898 snprintf(buf, sizeof(buf) - 1, "/sys/class/net/%s/phy80211/name",
2899 drv->first_bss.ifname);
2900 f = open(buf, O_RDONLY);
2902 wpa_printf(MSG_DEBUG, "Could not open file %s: %s",
2903 buf, strerror(errno));
2907 rv = read(f, drv->phyname, sizeof(drv->phyname) - 1);
2910 wpa_printf(MSG_DEBUG, "Could not read file %s: %s",
2911 buf, strerror(errno));
2915 drv->phyname[rv] = '\0';
2916 pos = os_strchr(drv->phyname, '\n');
2919 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s",
2920 drv->first_bss.ifname, drv->phyname);
2924 static void wpa_driver_nl80211_handle_eapol_tx_status(int sock,
2928 struct wpa_driver_nl80211_data *drv = eloop_ctx;
2933 struct cmsghdr *cmsg;
2934 int res, found_ee = 0, found_wifi = 0, acked = 0;
2935 union wpa_event_data event;
2937 memset(&msg, 0, sizeof(msg));
2938 msg.msg_iov = &entry;
2940 entry.iov_base = data;
2941 entry.iov_len = sizeof(data);
2942 msg.msg_control = &control;
2943 msg.msg_controllen = sizeof(control);
2945 res = recvmsg(sock, &msg, MSG_ERRQUEUE);
2946 /* if error or not fitting 802.3 header, return */
2950 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg))
2952 if (cmsg->cmsg_level == SOL_SOCKET &&
2953 cmsg->cmsg_type == SCM_WIFI_STATUS) {
2957 ack = (void *)CMSG_DATA(cmsg);
2961 if (cmsg->cmsg_level == SOL_PACKET &&
2962 cmsg->cmsg_type == PACKET_TX_TIMESTAMP) {
2963 struct sock_extended_err *err =
2964 (struct sock_extended_err *)CMSG_DATA(cmsg);
2966 if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS)
2971 if (!found_ee || !found_wifi)
2974 memset(&event, 0, sizeof(event));
2975 event.eapol_tx_status.dst = data;
2976 event.eapol_tx_status.data = data + 14;
2977 event.eapol_tx_status.data_len = res - 14;
2978 event.eapol_tx_status.ack = acked;
2979 wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event);
2983 static int nl80211_init_bss(struct i802_bss *bss)
2985 bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
2989 nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
2990 no_seq_check, NULL);
2991 nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
2992 process_bss_event, bss);
2998 static void nl80211_destroy_bss(struct i802_bss *bss)
3000 nl_cb_put(bss->nl_cb);
3006 * wpa_driver_nl80211_init - Initialize nl80211 driver interface
3007 * @ctx: context to be used when calling wpa_supplicant functions,
3008 * e.g., wpa_supplicant_event()
3009 * @ifname: interface name, e.g., wlan0
3010 * @global_priv: private driver global data from global_init()
3011 * Returns: Pointer to private data, %NULL on failure
3013 static void * wpa_driver_nl80211_init(void *ctx, const char *ifname,
3016 struct wpa_driver_nl80211_data *drv;
3017 struct rfkill_config *rcfg;
3018 struct i802_bss *bss;
3020 if (global_priv == NULL)
3022 drv = os_zalloc(sizeof(*drv));
3025 drv->global = global_priv;
3027 bss = &drv->first_bss;
3029 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname));
3030 drv->monitor_ifidx = -1;
3031 drv->monitor_sock = -1;
3032 drv->eapol_tx_sock = -1;
3033 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
3035 if (wpa_driver_nl80211_init_nl(drv)) {
3040 if (nl80211_init_bss(bss))
3043 nl80211_get_phy_name(drv);
3045 rcfg = os_zalloc(sizeof(*rcfg));
3049 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname));
3050 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked;
3051 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked;
3052 drv->rfkill = rfkill_init(rcfg);
3053 if (drv->rfkill == NULL) {
3054 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available");
3058 if (wpa_driver_nl80211_finish_drv_init(drv))
3061 drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0);
3062 if (drv->eapol_tx_sock < 0)
3065 if (drv->data_tx_status) {
3068 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS,
3069 &enabled, sizeof(enabled)) < 0) {
3070 wpa_printf(MSG_DEBUG,
3071 "nl80211: wifi status sockopt failed\n");
3072 drv->data_tx_status = 0;
3073 if (!drv->use_monitor)
3075 ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
3077 eloop_register_read_sock(drv->eapol_tx_sock,
3078 wpa_driver_nl80211_handle_eapol_tx_status,
3084 dl_list_add(&drv->global->interfaces, &drv->list);
3085 drv->in_interface_list = 1;
3091 wpa_driver_nl80211_deinit(bss);
3096 static int nl80211_register_frame(struct i802_bss *bss,
3097 struct nl_handle *nl_handle,
3098 u16 type, const u8 *match, size_t match_len)
3100 struct wpa_driver_nl80211_data *drv = bss->drv;
3104 msg = nlmsg_alloc();
3108 wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x nl_handle=%p",
3110 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match",
3113 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION);
3115 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
3116 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type);
3117 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match);
3119 ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL);
3122 wpa_printf(MSG_DEBUG, "nl80211: Register frame command "
3123 "failed (type=%u): ret=%d (%s)",
3124 type, ret, strerror(-ret));
3125 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match",
3127 goto nla_put_failure;
3136 static int nl80211_alloc_mgmt_handle(struct i802_bss *bss)
3138 struct wpa_driver_nl80211_data *drv = bss->drv;
3141 wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting "
3142 "already on! (nl_mgmt=%p)", bss->nl_mgmt);
3146 bss->nl_mgmt = nl_create_handle(drv->nl_cb, "mgmt");
3147 if (bss->nl_mgmt == NULL)
3150 eloop_register_read_sock(nl_socket_get_fd(bss->nl_mgmt),
3151 wpa_driver_nl80211_event_receive, bss->nl_cb,
3158 static int nl80211_register_action_frame(struct i802_bss *bss,
3159 const u8 *match, size_t match_len)
3161 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4);
3162 return nl80211_register_frame(bss, bss->nl_mgmt,
3163 type, match, match_len);
3167 static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss)
3169 struct wpa_driver_nl80211_data *drv = bss->drv;
3171 if (nl80211_alloc_mgmt_handle(bss))
3173 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP "
3174 "handle %p", bss->nl_mgmt);
3176 #if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING)
3177 /* GAS Initial Request */
3178 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0)
3180 /* GAS Initial Response */
3181 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0)
3183 /* GAS Comeback Request */
3184 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0)
3186 /* GAS Comeback Response */
3187 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0)
3189 #endif /* CONFIG_P2P || CONFIG_INTERWORKING */
3191 /* P2P Public Action */
3192 if (nl80211_register_action_frame(bss,
3193 (u8 *) "\x04\x09\x50\x6f\x9a\x09",
3197 if (nl80211_register_action_frame(bss,
3198 (u8 *) "\x7f\x50\x6f\x9a\x09",
3201 #endif /* CONFIG_P2P */
3202 #ifdef CONFIG_IEEE80211W
3203 /* SA Query Response */
3204 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0)
3206 #endif /* CONFIG_IEEE80211W */
3208 if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) {
3209 /* TDLS Discovery Response */
3210 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) <
3214 #endif /* CONFIG_TDLS */
3216 /* FT Action frames */
3217 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0)
3220 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT |
3221 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK;
3223 /* WNM - BSS Transition Management Request */
3224 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0)
3231 static int nl80211_register_spurious_class3(struct i802_bss *bss)
3233 struct wpa_driver_nl80211_data *drv = bss->drv;
3237 msg = nlmsg_alloc();
3241 nl80211_cmd(drv, msg, 0, NL80211_CMD_UNEXPECTED_FRAME);
3243 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
3245 ret = send_and_recv(drv->global, bss->nl_mgmt, msg, NULL, NULL);
3248 wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 "
3249 "failed: ret=%d (%s)",
3250 ret, strerror(-ret));
3251 goto nla_put_failure;
3260 static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss)
3262 static const int stypes[] = {
3264 WLAN_FC_STYPE_ASSOC_REQ,
3265 WLAN_FC_STYPE_REASSOC_REQ,
3266 WLAN_FC_STYPE_DISASSOC,
3267 WLAN_FC_STYPE_DEAUTH,
3268 WLAN_FC_STYPE_ACTION,
3269 WLAN_FC_STYPE_PROBE_REQ,
3270 /* Beacon doesn't work as mac80211 doesn't currently allow
3271 * it, but it wouldn't really be the right thing anyway as
3272 * it isn't per interface ... maybe just dump the scan
3273 * results periodically for OLBC?
3275 // WLAN_FC_STYPE_BEACON,
3279 if (nl80211_alloc_mgmt_handle(bss))
3281 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP "
3282 "handle %p", bss->nl_mgmt);
3284 for (i = 0; i < sizeof(stypes) / sizeof(stypes[0]); i++) {
3285 if (nl80211_register_frame(bss, bss->nl_mgmt,
3286 (WLAN_FC_TYPE_MGMT << 2) |
3293 if (nl80211_register_spurious_class3(bss))
3296 if (nl80211_get_wiphy_data_ap(bss) == NULL)
3302 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt));
3303 nl_destroy_handles(&bss->nl_mgmt);
3308 static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss)
3310 if (nl80211_alloc_mgmt_handle(bss))
3312 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP "
3313 "handle %p (device SME)", bss->nl_mgmt);
3315 if (nl80211_register_frame(bss, bss->nl_mgmt,
3316 (WLAN_FC_TYPE_MGMT << 2) |
3317 (WLAN_FC_STYPE_ACTION << 4),
3324 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt));
3325 nl_destroy_handles(&bss->nl_mgmt);
3330 static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason)
3332 if (bss->nl_mgmt == NULL)
3334 wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p "
3335 "(%s)", bss->nl_mgmt, reason);
3336 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt));
3337 nl_destroy_handles(&bss->nl_mgmt);
3339 nl80211_put_wiphy_data_ap(bss);
3343 static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx)
3345 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL);
3350 wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv)
3352 struct i802_bss *bss = &drv->first_bss;
3353 int send_rfkill_event = 0;
3355 drv->ifindex = if_nametoindex(bss->ifname);
3356 drv->first_bss.ifindex = drv->ifindex;
3360 * Make sure the interface starts up in station mode unless this is a
3361 * dynamically added interface (e.g., P2P) that was already configured
3362 * with proper iftype.
3364 if (drv->ifindex != drv->global->if_add_ifindex &&
3365 wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION) < 0) {
3366 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver to "
3367 "use managed mode");
3371 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) {
3372 if (rfkill_is_blocked(drv->rfkill)) {
3373 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable "
3374 "interface '%s' due to rfkill",
3376 drv->if_disabled = 1;
3377 send_rfkill_event = 1;
3379 wpa_printf(MSG_ERROR, "nl80211: Could not set "
3380 "interface '%s' UP", bss->ifname);
3385 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex,
3386 1, IF_OPER_DORMANT);
3387 #endif /* HOSTAPD */
3389 if (wpa_driver_nl80211_capa(drv))
3392 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
3396 if (send_rfkill_event) {
3397 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill,
3405 static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv)
3409 msg = nlmsg_alloc();
3413 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON);
3414 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3416 return send_and_recv_msgs(drv, msg, NULL, NULL);
3424 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface
3425 * @priv: Pointer to private nl80211 data from wpa_driver_nl80211_init()
3427 * Shut down driver interface and processing of driver events. Free
3428 * private data buffer if one was allocated in wpa_driver_nl80211_init().
3430 static void wpa_driver_nl80211_deinit(void *priv)
3432 struct i802_bss *bss = priv;
3433 struct wpa_driver_nl80211_data *drv = bss->drv;
3436 if (drv->data_tx_status)
3437 eloop_unregister_read_sock(drv->eapol_tx_sock);
3438 if (drv->eapol_tx_sock >= 0)
3439 close(drv->eapol_tx_sock);
3442 wpa_driver_nl80211_probe_req_report(bss, 0);
3443 if (bss->added_if_into_bridge) {
3444 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname,
3446 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
3447 "interface %s from bridge %s: %s",
3448 bss->ifname, bss->brname, strerror(errno));
3450 if (bss->added_bridge) {
3451 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0)
3452 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
3454 bss->brname, strerror(errno));
3457 nl80211_remove_monitor_interface(drv);
3459 if (is_ap_interface(drv->nlmode))
3460 wpa_driver_nl80211_del_beacon(drv);
3463 if (drv->last_freq_ht) {
3464 /* Clear HT flags from the driver */
3465 struct hostapd_freq_params freq;
3466 os_memset(&freq, 0, sizeof(freq));
3467 freq.freq = drv->last_freq;
3468 i802_set_freq(priv, &freq);
3471 if (drv->eapol_sock >= 0) {
3472 eloop_unregister_read_sock(drv->eapol_sock);
3473 close(drv->eapol_sock);
3476 if (drv->if_indices != drv->default_if_indices)
3477 os_free(drv->if_indices);
3478 #endif /* HOSTAPD */
3480 if (drv->disabled_11b_rates)
3481 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
3483 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0,
3485 rfkill_deinit(drv->rfkill);
3487 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
3489 (void) linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0);
3490 wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION);
3491 nl80211_mgmt_unsubscribe(bss, "deinit");
3493 nl_cb_put(drv->nl_cb);
3495 nl80211_destroy_bss(&drv->first_bss);
3497 os_free(drv->filter_ssids);
3499 os_free(drv->auth_ie);
3501 if (drv->in_interface_list)
3502 dl_list_del(&drv->list);
3509 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion
3510 * @eloop_ctx: Driver private data
3511 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init()
3513 * This function can be used as registered timeout when starting a scan to
3514 * generate a scan completed event if the driver does not report this.
3516 static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx)
3518 struct wpa_driver_nl80211_data *drv = eloop_ctx;
3519 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) {
3520 wpa_driver_nl80211_set_mode(&drv->first_bss,
3521 drv->ap_scan_as_station);
3522 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
3524 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results");
3525 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL);
3529 static struct nl_msg *
3530 nl80211_scan_common(struct wpa_driver_nl80211_data *drv, u8 cmd,
3531 struct wpa_driver_scan_params *params)
3537 msg = nlmsg_alloc();
3541 nl80211_cmd(drv, msg, 0, cmd);
3543 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, drv->ifindex) < 0)
3546 if (params->num_ssids) {
3547 struct nl_msg *ssids = nlmsg_alloc();
3550 for (i = 0; i < params->num_ssids; i++) {
3551 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID",
3552 params->ssids[i].ssid,
3553 params->ssids[i].ssid_len);
3554 if (nla_put(ssids, i + 1, params->ssids[i].ssid_len,
3555 params->ssids[i].ssid) < 0) {
3560 err = nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids);
3566 if (params->extra_ies) {
3567 wpa_hexdump(MSG_MSGDUMP, "nl80211: Scan extra IEs",
3568 params->extra_ies, params->extra_ies_len);
3569 if (nla_put(msg, NL80211_ATTR_IE, params->extra_ies_len,
3570 params->extra_ies) < 0)
3574 if (params->freqs) {
3575 struct nl_msg *freqs = nlmsg_alloc();
3578 for (i = 0; params->freqs[i]; i++) {
3579 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u "
3580 "MHz", params->freqs[i]);
3581 if (nla_put_u32(freqs, i + 1, params->freqs[i]) < 0) {
3586 err = nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES,
3593 os_free(drv->filter_ssids);
3594 drv->filter_ssids = params->filter_ssids;
3595 params->filter_ssids = NULL;
3596 drv->num_filter_ssids = params->num_filter_ssids;
3607 * wpa_driver_nl80211_scan - Request the driver to initiate scan
3608 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
3609 * @params: Scan parameters
3610 * Returns: 0 on success, -1 on failure
3612 static int wpa_driver_nl80211_scan(void *priv,
3613 struct wpa_driver_scan_params *params)
3615 struct i802_bss *bss = priv;
3616 struct wpa_driver_nl80211_data *drv = bss->drv;
3617 int ret = -1, timeout;
3618 struct nl_msg *msg, *rates = NULL;
3620 drv->scan_for_auth = 0;
3622 msg = nl80211_scan_common(drv, NL80211_CMD_TRIGGER_SCAN, params);
3626 if (params->p2p_probe) {
3627 wpa_printf(MSG_DEBUG, "nl80211: P2P probe - mask SuppRates");
3629 rates = nlmsg_alloc();
3631 goto nla_put_failure;
3634 * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates
3635 * by masking out everything else apart from the OFDM rates 6,
3636 * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz
3637 * rates are left enabled.
3639 NLA_PUT(rates, NL80211_BAND_2GHZ, 8,
3640 "\x0c\x12\x18\x24\x30\x48\x60\x6c");
3641 if (nla_put_nested(msg, NL80211_ATTR_SCAN_SUPP_RATES, rates) <
3643 goto nla_put_failure;
3645 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE);
3648 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3651 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d "
3652 "(%s)", ret, strerror(-ret));
3654 if (is_ap_interface(drv->nlmode)) {
3656 * mac80211 does not allow scan requests in AP mode, so
3657 * try to do this in station mode.
3659 if (wpa_driver_nl80211_set_mode(
3660 bss, NL80211_IFTYPE_STATION))
3661 goto nla_put_failure;
3663 if (wpa_driver_nl80211_scan(drv, params)) {
3664 wpa_driver_nl80211_set_mode(bss, drv->nlmode);
3665 goto nla_put_failure;
3668 /* Restore AP mode when processing scan results */
3669 drv->ap_scan_as_station = drv->nlmode;
3672 goto nla_put_failure;
3674 goto nla_put_failure;
3675 #endif /* HOSTAPD */
3678 /* Not all drivers generate "scan completed" wireless event, so try to
3679 * read results after a timeout. */
3681 if (drv->scan_complete_events) {
3683 * The driver seems to deliver events to notify when scan is
3684 * complete, so use longer timeout to avoid race conditions
3685 * with scanning and following association request.
3689 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d "
3690 "seconds", ret, timeout);
3691 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
3692 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout,
3703 * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan
3704 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
3705 * @params: Scan parameters
3706 * @interval: Interval between scan cycles in milliseconds
3707 * Returns: 0 on success, -1 on failure or if not supported
3709 static int wpa_driver_nl80211_sched_scan(void *priv,
3710 struct wpa_driver_scan_params *params,
3713 struct i802_bss *bss = priv;
3714 struct wpa_driver_nl80211_data *drv = bss->drv;
3717 struct nl_msg *match_set_ssid = NULL, *match_sets = NULL;
3718 struct nl_msg *match_set_rssi = NULL;
3722 if (!drv->capa.sched_scan_supported)
3723 return android_pno_start(bss, params);
3724 #endif /* ANDROID */
3726 msg = nl80211_scan_common(drv, NL80211_CMD_START_SCHED_SCAN, params);
3728 goto nla_put_failure;
3730 NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval);
3732 if ((drv->num_filter_ssids &&
3733 (int) drv->num_filter_ssids <= drv->capa.max_match_sets) ||
3734 params->filter_rssi) {
3735 match_sets = nlmsg_alloc();
3736 if (match_sets == NULL)
3737 goto nla_put_failure;
3739 for (i = 0; i < drv->num_filter_ssids; i++) {
3740 wpa_hexdump_ascii(MSG_MSGDUMP,
3741 "nl80211: Sched scan filter SSID",
3742 drv->filter_ssids[i].ssid,
3743 drv->filter_ssids[i].ssid_len);
3745 match_set_ssid = nlmsg_alloc();
3746 if (match_set_ssid == NULL)
3747 goto nla_put_failure;
3748 NLA_PUT(match_set_ssid,
3749 NL80211_ATTR_SCHED_SCAN_MATCH_SSID,
3750 drv->filter_ssids[i].ssid_len,
3751 drv->filter_ssids[i].ssid);
3753 if (nla_put_nested(match_sets, i + 1, match_set_ssid) <
3755 goto nla_put_failure;
3758 if (params->filter_rssi) {
3759 match_set_rssi = nlmsg_alloc();
3760 if (match_set_rssi == NULL)
3761 goto nla_put_failure;
3762 NLA_PUT_U32(match_set_rssi,
3763 NL80211_SCHED_SCAN_MATCH_ATTR_RSSI,
3764 params->filter_rssi);
3765 wpa_printf(MSG_MSGDUMP,
3766 "nl80211: Sched scan RSSI filter %d dBm",
3767 params->filter_rssi);
3768 if (nla_put_nested(match_sets, 0, match_set_rssi) < 0)
3769 goto nla_put_failure;
3772 if (nla_put_nested(msg, NL80211_ATTR_SCHED_SCAN_MATCH,
3774 goto nla_put_failure;
3777 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3779 /* TODO: if we get an error here, we should fall back to normal scan */
3783 wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: "
3784 "ret=%d (%s)", ret, strerror(-ret));
3785 goto nla_put_failure;
3788 wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - "
3789 "scan interval %d msec", ret, interval);
3792 nlmsg_free(match_set_ssid);
3793 nlmsg_free(match_sets);
3794 nlmsg_free(match_set_rssi);
3801 * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan
3802 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
3803 * Returns: 0 on success, -1 on failure or if not supported
3805 static int wpa_driver_nl80211_stop_sched_scan(void *priv)
3807 struct i802_bss *bss = priv;
3808 struct wpa_driver_nl80211_data *drv = bss->drv;
3813 if (!drv->capa.sched_scan_supported)
3814 return android_pno_stop(bss);
3815 #endif /* ANDROID */
3817 msg = nlmsg_alloc();
3821 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN);
3823 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3825 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3828 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: "
3829 "ret=%d (%s)", ret, strerror(-ret));
3830 goto nla_put_failure;
3833 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret);
3841 static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie)
3843 const u8 *end, *pos;
3849 end = ies + ies_len;
3851 while (pos + 1 < end) {
3852 if (pos + 2 + pos[1] > end)
3863 static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv,
3864 const u8 *ie, size_t ie_len)
3869 if (drv->filter_ssids == NULL)
3872 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID);
3876 for (i = 0; i < drv->num_filter_ssids; i++) {
3877 if (ssid[1] == drv->filter_ssids[i].ssid_len &&
3878 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) ==
3887 static int bss_info_handler(struct nl_msg *msg, void *arg)
3889 struct nlattr *tb[NL80211_ATTR_MAX + 1];
3890 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3891 struct nlattr *bss[NL80211_BSS_MAX + 1];
3892 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
3893 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC },
3894 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 },
3895 [NL80211_BSS_TSF] = { .type = NLA_U64 },
3896 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 },
3897 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 },
3898 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC },
3899 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 },
3900 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 },
3901 [NL80211_BSS_STATUS] = { .type = NLA_U32 },
3902 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 },
3903 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC },
3905 struct nl80211_bss_info_arg *_arg = arg;
3906 struct wpa_scan_results *res = _arg->res;
3907 struct wpa_scan_res **tmp;
3908 struct wpa_scan_res *r;
3909 const u8 *ie, *beacon_ie;
3910 size_t ie_len, beacon_ie_len;
3914 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3915 genlmsg_attrlen(gnlh, 0), NULL);
3916 if (!tb[NL80211_ATTR_BSS])
3918 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS],
3921 if (bss[NL80211_BSS_STATUS]) {
3922 enum nl80211_bss_status status;
3923 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
3924 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
3925 bss[NL80211_BSS_FREQUENCY]) {
3927 nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
3928 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz",
3931 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
3932 bss[NL80211_BSS_BSSID]) {
3933 os_memcpy(_arg->assoc_bssid,
3934 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN);
3935 wpa_printf(MSG_DEBUG, "nl80211: Associated with "
3936 MACSTR, MAC2STR(_arg->assoc_bssid));
3941 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) {
3942 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
3943 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
3948 if (bss[NL80211_BSS_BEACON_IES]) {
3949 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]);
3950 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]);
3956 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie,
3957 ie ? ie_len : beacon_ie_len))
3960 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len);
3963 if (bss[NL80211_BSS_BSSID])
3964 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]),
3966 if (bss[NL80211_BSS_FREQUENCY])
3967 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
3968 if (bss[NL80211_BSS_BEACON_INTERVAL])
3969 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]);
3970 if (bss[NL80211_BSS_CAPABILITY])
3971 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]);
3972 r->flags |= WPA_SCAN_NOISE_INVALID;
3973 if (bss[NL80211_BSS_SIGNAL_MBM]) {
3974 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]);
3975 r->level /= 100; /* mBm to dBm */
3976 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID;
3977 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) {
3978 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]);
3979 r->flags |= WPA_SCAN_QUAL_INVALID;
3981 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID;
3982 if (bss[NL80211_BSS_TSF])
3983 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]);
3984 if (bss[NL80211_BSS_SEEN_MS_AGO])
3985 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]);
3987 pos = (u8 *) (r + 1);
3989 os_memcpy(pos, ie, ie_len);
3992 r->beacon_ie_len = beacon_ie_len;
3994 os_memcpy(pos, beacon_ie, beacon_ie_len);
3996 if (bss[NL80211_BSS_STATUS]) {
3997 enum nl80211_bss_status status;
3998 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
4000 case NL80211_BSS_STATUS_AUTHENTICATED:
4001 r->flags |= WPA_SCAN_AUTHENTICATED;
4003 case NL80211_BSS_STATUS_ASSOCIATED:
4004 r->flags |= WPA_SCAN_ASSOCIATED;
4012 * cfg80211 maintains separate BSS table entries for APs if the same
4013 * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does
4014 * not use frequency as a separate key in the BSS table, so filter out
4015 * duplicated entries. Prefer associated BSS entry in such a case in
4016 * order to get the correct frequency into the BSS table.
4018 for (i = 0; i < res->num; i++) {
4020 if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0)
4023 s1 = nl80211_get_ie((u8 *) (res->res[i] + 1),
4024 res->res[i]->ie_len, WLAN_EID_SSID);
4025 s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID);
4026 if (s1 == NULL || s2 == NULL || s1[1] != s2[1] ||
4027 os_memcmp(s1, s2, 2 + s1[1]) != 0)
4030 /* Same BSSID,SSID was already included in scan results */
4031 wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result "
4032 "for " MACSTR, MAC2STR(r->bssid));
4034 if ((r->flags & WPA_SCAN_ASSOCIATED) &&
4035 !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) {
4036 os_free(res->res[i]);
4043 tmp = os_realloc_array(res->res, res->num + 1,
4044 sizeof(struct wpa_scan_res *));
4049 tmp[res->num++] = r;
4056 static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv,
4059 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
4060 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state "
4061 "mismatch (" MACSTR ")", MAC2STR(addr));
4062 wpa_driver_nl80211_mlme(drv, addr,
4063 NL80211_CMD_DEAUTHENTICATE,
4064 WLAN_REASON_PREV_AUTH_NOT_VALID, 1);
4069 static void wpa_driver_nl80211_check_bss_status(
4070 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res)
4074 for (i = 0; i < res->num; i++) {
4075 struct wpa_scan_res *r = res->res[i];
4076 if (r->flags & WPA_SCAN_AUTHENTICATED) {
4077 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
4078 "indicates BSS status with " MACSTR
4079 " as authenticated",
4081 if (is_sta_interface(drv->nlmode) &&
4082 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 &&
4083 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) !=
4085 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID"
4086 " in local state (auth=" MACSTR
4087 " assoc=" MACSTR ")",
4088 MAC2STR(drv->auth_bssid),
4089 MAC2STR(drv->bssid));
4090 clear_state_mismatch(drv, r->bssid);
4094 if (r->flags & WPA_SCAN_ASSOCIATED) {
4095 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
4096 "indicate BSS status with " MACSTR
4099 if (is_sta_interface(drv->nlmode) &&
4101 wpa_printf(MSG_DEBUG, "nl80211: Local state "
4102 "(not associated) does not match "
4104 clear_state_mismatch(drv, r->bssid);
4105 } else if (is_sta_interface(drv->nlmode) &&
4106 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) !=
4108 wpa_printf(MSG_DEBUG, "nl80211: Local state "
4109 "(associated with " MACSTR ") does "
4110 "not match with BSS state",
4111 MAC2STR(drv->bssid));
4112 clear_state_mismatch(drv, r->bssid);
4113 clear_state_mismatch(drv, drv->bssid);
4120 static struct wpa_scan_results *
4121 nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv)
4124 struct wpa_scan_results *res;
4126 struct nl80211_bss_info_arg arg;
4128 res = os_zalloc(sizeof(*res));
4131 msg = nlmsg_alloc();
4133 goto nla_put_failure;
4135 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
4136 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4140 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
4143 wpa_printf(MSG_DEBUG, "nl80211: Received scan results (%lu "
4144 "BSSes)", (unsigned long) res->num);
4145 nl80211_get_noise_for_scan_results(drv, res);
4148 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
4149 "(%s)", ret, strerror(-ret));
4152 wpa_scan_results_free(res);
4158 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results
4159 * @priv: Pointer to private wext data from wpa_driver_nl80211_init()
4160 * Returns: Scan results on success, -1 on failure
4162 static struct wpa_scan_results *
4163 wpa_driver_nl80211_get_scan_results(void *priv)
4165 struct i802_bss *bss = priv;
4166 struct wpa_driver_nl80211_data *drv = bss->drv;
4167 struct wpa_scan_results *res;
4169 res = nl80211_get_scan_results(drv);
4171 wpa_driver_nl80211_check_bss_status(drv, res);
4176 static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv)
4178 struct wpa_scan_results *res;
4181 res = nl80211_get_scan_results(drv);
4183 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results");
4187 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump");
4188 for (i = 0; i < res->num; i++) {
4189 struct wpa_scan_res *r = res->res[i];
4190 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s",
4191 (int) i, (int) res->num, MAC2STR(r->bssid),
4192 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "",
4193 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : "");
4196 wpa_scan_results_free(res);
4200 static int wpa_driver_nl80211_set_key(const char *ifname, void *priv,
4201 enum wpa_alg alg, const u8 *addr,
4202 int key_idx, int set_tx,
4203 const u8 *seq, size_t seq_len,
4204 const u8 *key, size_t key_len)
4206 struct i802_bss *bss = priv;
4207 struct wpa_driver_nl80211_data *drv = bss->drv;
4208 int ifindex = if_nametoindex(ifname);
4212 wpa_printf(MSG_DEBUG, "%s: ifindex=%d alg=%d addr=%p key_idx=%d "
4213 "set_tx=%d seq_len=%lu key_len=%lu",
4214 __func__, ifindex, alg, addr, key_idx, set_tx,
4215 (unsigned long) seq_len, (unsigned long) key_len);
4219 #endif /* CONFIG_TDLS */
4221 msg = nlmsg_alloc();
4225 if (alg == WPA_ALG_NONE) {
4226 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY);
4228 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY);
4229 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key);
4233 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4234 WLAN_CIPHER_SUITE_WEP40);
4236 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4237 WLAN_CIPHER_SUITE_WEP104);
4240 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4241 WLAN_CIPHER_SUITE_TKIP);
4244 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4245 WLAN_CIPHER_SUITE_CCMP);
4248 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4249 WLAN_CIPHER_SUITE_GCMP);
4252 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4253 WLAN_CIPHER_SUITE_AES_CMAC);
4256 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4257 WLAN_CIPHER_SUITE_SMS4);
4260 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4261 WLAN_CIPHER_SUITE_KRK);
4264 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
4265 "algorithm %d", __func__, alg);
4272 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq);
4274 if (addr && !is_broadcast_ether_addr(addr)) {
4275 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr));
4276 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
4278 if (alg != WPA_ALG_WEP && key_idx && !set_tx) {
4279 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK");
4280 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE,
4281 NL80211_KEYTYPE_GROUP);
4283 } else if (addr && is_broadcast_ether_addr(addr)) {
4284 struct nl_msg *types;
4286 wpa_printf(MSG_DEBUG, " broadcast key");
4287 types = nlmsg_alloc();
4289 goto nla_put_failure;
4290 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
4291 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
4295 goto nla_put_failure;
4297 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
4298 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
4300 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4301 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE)
4304 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)",
4305 ret, strerror(-ret));
4308 * If we failed or don't need to set the default TX key (below),
4311 if (ret || !set_tx || alg == WPA_ALG_NONE)
4313 if (is_ap_interface(drv->nlmode) && addr &&
4314 !is_broadcast_ether_addr(addr))
4317 msg = nlmsg_alloc();
4321 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY);
4322 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
4323 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
4324 if (alg == WPA_ALG_IGTK)
4325 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT);
4327 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
4328 if (addr && is_broadcast_ether_addr(addr)) {
4329 struct nl_msg *types;
4331 types = nlmsg_alloc();
4333 goto nla_put_failure;
4334 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
4335 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
4339 goto nla_put_failure;
4341 struct nl_msg *types;
4343 types = nlmsg_alloc();
4345 goto nla_put_failure;
4346 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_UNICAST);
4347 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
4351 goto nla_put_failure;
4354 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4358 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; "
4359 "err=%d %s)", ret, strerror(-ret));
4368 static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg,
4369 int key_idx, int defkey,
4370 const u8 *seq, size_t seq_len,
4371 const u8 *key, size_t key_len)
4373 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY);
4377 if (defkey && alg == WPA_ALG_IGTK)
4378 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT);
4380 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
4382 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx);
4387 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
4388 WLAN_CIPHER_SUITE_WEP40);
4390 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
4391 WLAN_CIPHER_SUITE_WEP104);
4394 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP);
4397 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP);
4400 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_GCMP);
4403 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
4404 WLAN_CIPHER_SUITE_AES_CMAC);
4407 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
4408 "algorithm %d", __func__, alg);
4413 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq);
4415 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key);
4417 nla_nest_end(msg, key_attr);
4425 static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params,
4429 struct nlattr *nl_keys, *nl_key;
4431 for (i = 0; i < 4; i++) {
4432 if (!params->wep_key[i])
4437 if (params->wps == WPS_MODE_PRIVACY)
4439 if (params->pairwise_suite &&
4440 params->pairwise_suite != WPA_CIPHER_NONE)
4446 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
4448 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS);
4450 goto nla_put_failure;
4452 for (i = 0; i < 4; i++) {
4453 if (!params->wep_key[i])
4456 nl_key = nla_nest_start(msg, i);
4458 goto nla_put_failure;
4460 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i],
4461 params->wep_key[i]);
4462 if (params->wep_key_len[i] == 5)
4463 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
4464 WLAN_CIPHER_SUITE_WEP40);
4466 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
4467 WLAN_CIPHER_SUITE_WEP104);
4469 NLA_PUT_U8(msg, NL80211_KEY_IDX, i);
4471 if (i == params->wep_tx_keyidx)
4472 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
4474 nla_nest_end(msg, nl_key);
4476 nla_nest_end(msg, nl_keys);
4485 static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
4486 const u8 *addr, int cmd, u16 reason_code,
4487 int local_state_change)
4492 msg = nlmsg_alloc();
4496 nl80211_cmd(drv, msg, 0, cmd);
4498 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4499 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code);
4501 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
4502 if (local_state_change)
4503 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
4505 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4508 wpa_dbg(drv->ctx, MSG_DEBUG,
4509 "nl80211: MLME command failed: reason=%u ret=%d (%s)",
4510 reason_code, ret, strerror(-ret));
4511 goto nla_put_failure;
4521 static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv,
4524 wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code);
4525 drv->associated = 0;
4526 drv->ignore_next_local_disconnect = 0;
4527 /* Disconnect command doesn't need BSSID - it uses cached value */
4528 return wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT,
4533 static int wpa_driver_nl80211_deauthenticate(void *priv, const u8 *addr,
4536 struct i802_bss *bss = priv;
4537 struct wpa_driver_nl80211_data *drv = bss->drv;
4538 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
4539 return wpa_driver_nl80211_disconnect(drv, reason_code);
4540 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)",
4541 __func__, MAC2STR(addr), reason_code);
4542 drv->associated = 0;
4543 if (drv->nlmode == NL80211_IFTYPE_ADHOC)
4544 return nl80211_leave_ibss(drv);
4545 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE,
4550 static int wpa_driver_nl80211_disassociate(void *priv, const u8 *addr,
4553 struct i802_bss *bss = priv;
4554 struct wpa_driver_nl80211_data *drv = bss->drv;
4555 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
4556 return wpa_driver_nl80211_disconnect(drv, reason_code);
4557 wpa_printf(MSG_DEBUG, "%s", __func__);
4558 drv->associated = 0;
4559 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISASSOCIATE,
4564 static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv,
4565 struct wpa_driver_auth_params *params)
4569 drv->auth_freq = params->freq;
4570 drv->auth_alg = params->auth_alg;
4571 drv->auth_wep_tx_keyidx = params->wep_tx_keyidx;
4572 drv->auth_local_state_change = params->local_state_change;
4573 drv->auth_p2p = params->p2p;
4576 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN);
4578 os_memset(drv->auth_bssid_, 0, ETH_ALEN);
4581 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len);
4582 drv->auth_ssid_len = params->ssid_len;
4584 drv->auth_ssid_len = 0;
4587 os_free(drv->auth_ie);
4588 drv->auth_ie = NULL;
4589 drv->auth_ie_len = 0;
4591 drv->auth_ie = os_malloc(params->ie_len);
4593 os_memcpy(drv->auth_ie, params->ie, params->ie_len);
4594 drv->auth_ie_len = params->ie_len;
4598 for (i = 0; i < 4; i++) {
4599 if (params->wep_key[i] && params->wep_key_len[i] &&
4600 params->wep_key_len[i] <= 16) {
4601 os_memcpy(drv->auth_wep_key[i], params->wep_key[i],
4602 params->wep_key_len[i]);
4603 drv->auth_wep_key_len[i] = params->wep_key_len[i];
4605 drv->auth_wep_key_len[i] = 0;
4610 static int wpa_driver_nl80211_authenticate(
4611 void *priv, struct wpa_driver_auth_params *params)
4613 struct i802_bss *bss = priv;
4614 struct wpa_driver_nl80211_data *drv = bss->drv;
4617 enum nl80211_auth_type type;
4618 enum nl80211_iftype nlmode;
4622 is_retry = drv->retry_auth;
4623 drv->retry_auth = 0;
4625 drv->associated = 0;
4626 os_memset(drv->auth_bssid, 0, ETH_ALEN);
4627 /* FIX: IBSS mode */
4628 nlmode = params->p2p ?
4629 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
4630 if (drv->nlmode != nlmode &&
4631 wpa_driver_nl80211_set_mode(priv, nlmode) < 0)
4635 msg = nlmsg_alloc();
4639 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)",
4642 nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE);
4644 for (i = 0; i < 4; i++) {
4645 if (!params->wep_key[i])
4647 wpa_driver_nl80211_set_key(bss->ifname, priv, WPA_ALG_WEP,
4649 i == params->wep_tx_keyidx, NULL, 0,
4651 params->wep_key_len[i]);
4652 if (params->wep_tx_keyidx != i)
4654 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0,
4655 params->wep_key[i], params->wep_key_len[i])) {
4661 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4662 if (params->bssid) {
4663 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
4664 MAC2STR(params->bssid));
4665 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
4668 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
4669 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
4672 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
4673 params->ssid, params->ssid_len);
4674 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
4677 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len);
4679 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie);
4680 if (params->sae_data) {
4681 wpa_hexdump(MSG_DEBUG, " * SAE data", params->sae_data,
4682 params->sae_data_len);
4683 NLA_PUT(msg, NL80211_ATTR_SAE_DATA, params->sae_data_len,
4686 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
4687 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
4688 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
4689 type = NL80211_AUTHTYPE_SHARED_KEY;
4690 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
4691 type = NL80211_AUTHTYPE_NETWORK_EAP;
4692 else if (params->auth_alg & WPA_AUTH_ALG_FT)
4693 type = NL80211_AUTHTYPE_FT;
4694 else if (params->auth_alg & WPA_AUTH_ALG_SAE)
4695 type = NL80211_AUTHTYPE_SAE;
4697 goto nla_put_failure;
4698 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
4699 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
4700 if (params->local_state_change) {
4701 wpa_printf(MSG_DEBUG, " * Local state change only");
4702 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
4705 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4708 wpa_dbg(drv->ctx, MSG_DEBUG,
4709 "nl80211: MLME command failed (auth): ret=%d (%s)",
4710 ret, strerror(-ret));
4712 if (ret == -EALREADY && count == 1 && params->bssid &&
4713 !params->local_state_change) {
4715 * mac80211 does not currently accept new
4716 * authentication if we are already authenticated. As a
4717 * workaround, force deauthentication and try again.
4719 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication "
4720 "after forced deauthentication");
4721 wpa_driver_nl80211_deauthenticate(
4723 WLAN_REASON_PREV_AUTH_NOT_VALID);
4728 if (ret == -ENOENT && params->freq && !is_retry) {
4730 * cfg80211 has likely expired the BSS entry even
4731 * though it was previously available in our internal
4732 * BSS table. To recover quickly, start a single
4733 * channel scan on the specified channel.
4735 struct wpa_driver_scan_params scan;
4738 os_memset(&scan, 0, sizeof(scan));
4741 scan.ssids[0].ssid = params->ssid;
4742 scan.ssids[0].ssid_len = params->ssid_len;
4744 freqs[0] = params->freq;
4747 wpa_printf(MSG_DEBUG, "nl80211: Trigger single "
4748 "channel scan to refresh cfg80211 BSS "
4750 ret = wpa_driver_nl80211_scan(bss, &scan);
4752 nl80211_copy_auth_params(drv, params);
4753 drv->scan_for_auth = 1;
4755 } else if (is_retry) {
4757 * Need to indicate this with an event since the return
4758 * value from the retry is not delivered to core code.
4760 union wpa_event_data event;
4761 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry "
4763 os_memset(&event, 0, sizeof(event));
4764 os_memcpy(event.timeout_event.addr, drv->auth_bssid_,
4766 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT,
4770 goto nla_put_failure;
4773 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send "
4782 static int wpa_driver_nl80211_authenticate_retry(
4783 struct wpa_driver_nl80211_data *drv)
4785 struct wpa_driver_auth_params params;
4786 struct i802_bss *bss = &drv->first_bss;
4789 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again");
4791 os_memset(¶ms, 0, sizeof(params));
4792 params.freq = drv->auth_freq;
4793 params.auth_alg = drv->auth_alg;
4794 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx;
4795 params.local_state_change = drv->auth_local_state_change;
4796 params.p2p = drv->auth_p2p;
4798 if (!is_zero_ether_addr(drv->auth_bssid_))
4799 params.bssid = drv->auth_bssid_;
4801 if (drv->auth_ssid_len) {
4802 params.ssid = drv->auth_ssid;
4803 params.ssid_len = drv->auth_ssid_len;
4806 params.ie = drv->auth_ie;
4807 params.ie_len = drv->auth_ie_len;
4809 for (i = 0; i < 4; i++) {
4810 if (drv->auth_wep_key_len[i]) {
4811 params.wep_key[i] = drv->auth_wep_key[i];
4812 params.wep_key_len[i] = drv->auth_wep_key_len[i];
4816 drv->retry_auth = 1;
4817 return wpa_driver_nl80211_authenticate(bss, ¶ms);
4821 struct phy_info_arg {
4823 struct hostapd_hw_modes *modes;
4826 static int phy_info_handler(struct nl_msg *msg, void *arg)
4828 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
4829 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
4830 struct phy_info_arg *phy_info = arg;
4832 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
4834 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
4835 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
4836 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
4837 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
4838 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG },
4839 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG },
4840 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
4841 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
4844 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
4845 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
4846 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
4847 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = { .type = NLA_FLAG },
4850 struct nlattr *nl_band;
4851 struct nlattr *nl_freq;
4852 struct nlattr *nl_rate;
4853 int rem_band, rem_freq, rem_rate;
4854 struct hostapd_hw_modes *mode;
4855 int idx, mode_is_set;
4857 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
4858 genlmsg_attrlen(gnlh, 0), NULL);
4860 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
4863 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) {
4864 mode = os_realloc_array(phy_info->modes,
4865 *phy_info->num_modes + 1,
4869 phy_info->modes = mode;
4873 mode = &phy_info->modes[*(phy_info->num_modes)];
4874 memset(mode, 0, sizeof(*mode));
4875 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN;
4876 *(phy_info->num_modes) += 1;
4878 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
4879 nla_len(nl_band), NULL);
4881 if (tb_band[NL80211_BAND_ATTR_HT_CAPA]) {
4882 mode->ht_capab = nla_get_u16(
4883 tb_band[NL80211_BAND_ATTR_HT_CAPA]);
4886 if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) {
4887 mode->a_mpdu_params |= nla_get_u8(
4888 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) &
4892 if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) {
4893 mode->a_mpdu_params |= nla_get_u8(
4894 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) <<
4898 if (tb_band[NL80211_BAND_ATTR_HT_MCS_SET] &&
4899 nla_len(tb_band[NL80211_BAND_ATTR_HT_MCS_SET])) {
4901 mcs = nla_data(tb_band[NL80211_BAND_ATTR_HT_MCS_SET]);
4902 os_memcpy(mode->mcs_set, mcs, 16);
4905 if (tb_band[NL80211_BAND_ATTR_VHT_CAPA]) {
4906 mode->vht_capab = nla_get_u32(
4907 tb_band[NL80211_BAND_ATTR_VHT_CAPA]);
4910 if (tb_band[NL80211_BAND_ATTR_VHT_MCS_SET] &&
4911 nla_len(tb_band[NL80211_BAND_ATTR_VHT_MCS_SET])) {
4913 mcs = nla_data(tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]);
4914 os_memcpy(mode->vht_mcs_set, mcs, 8);
4917 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
4918 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
4919 nla_len(nl_freq), freq_policy);
4920 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
4922 mode->num_channels++;
4925 mode->channels = os_calloc(mode->num_channels,
4926 sizeof(struct hostapd_channel_data));
4927 if (!mode->channels)
4932 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
4933 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
4934 nla_len(nl_freq), freq_policy);
4935 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
4938 mode->channels[idx].freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
4939 mode->channels[idx].flag = 0;
4942 /* crude heuristic */
4943 if (mode->channels[idx].freq < 4000)
4944 mode->mode = HOSTAPD_MODE_IEEE80211B;
4946 mode->mode = HOSTAPD_MODE_IEEE80211A;
4950 /* crude heuristic */
4951 if (mode->channels[idx].freq < 4000)
4952 if (mode->channels[idx].freq == 2484)
4953 mode->channels[idx].chan = 14;
4955 mode->channels[idx].chan = (mode->channels[idx].freq - 2407) / 5;
4957 mode->channels[idx].chan = mode->channels[idx].freq/5 - 1000;
4959 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
4960 mode->channels[idx].flag |=
4961 HOSTAPD_CHAN_DISABLED;
4962 if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
4963 mode->channels[idx].flag |=
4964 HOSTAPD_CHAN_PASSIVE_SCAN;
4965 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS])
4966 mode->channels[idx].flag |=
4967 HOSTAPD_CHAN_NO_IBSS;
4968 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
4969 mode->channels[idx].flag |=
4972 if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] &&
4973 !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
4974 mode->channels[idx].max_tx_power =
4975 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100;
4980 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
4981 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
4982 nla_len(nl_rate), rate_policy);
4983 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
4988 mode->rates = os_calloc(mode->num_rates, sizeof(int));
4994 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
4995 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
4996 nla_len(nl_rate), rate_policy);
4997 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
4999 mode->rates[idx] = nla_get_u32(tb_rate[NL80211_BITRATE_ATTR_RATE]);
5001 /* crude heuristic */
5002 if (mode->mode == HOSTAPD_MODE_IEEE80211B &&
5003 mode->rates[idx] > 200)
5004 mode->mode = HOSTAPD_MODE_IEEE80211G;
5013 static struct hostapd_hw_modes *
5014 wpa_driver_nl80211_add_11b(struct hostapd_hw_modes *modes, u16 *num_modes)
5017 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
5018 int i, mode11g_idx = -1;
5020 /* If only 802.11g mode is included, use it to construct matching
5021 * 802.11b mode data. */
5023 for (m = 0; m < *num_modes; m++) {
5024 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
5025 return modes; /* 802.11b already included */
5026 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
5030 if (mode11g_idx < 0)
5031 return modes; /* 2.4 GHz band not supported at all */
5033 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes));
5035 return modes; /* Could not add 802.11b mode */
5037 mode = &nmodes[*num_modes];
5038 os_memset(mode, 0, sizeof(*mode));
5042 mode->mode = HOSTAPD_MODE_IEEE80211B;
5044 mode11g = &modes[mode11g_idx];
5045 mode->num_channels = mode11g->num_channels;
5046 mode->channels = os_malloc(mode11g->num_channels *
5047 sizeof(struct hostapd_channel_data));
5048 if (mode->channels == NULL) {
5050 return modes; /* Could not add 802.11b mode */
5052 os_memcpy(mode->channels, mode11g->channels,
5053 mode11g->num_channels * sizeof(struct hostapd_channel_data));
5055 mode->num_rates = 0;
5056 mode->rates = os_malloc(4 * sizeof(int));
5057 if (mode->rates == NULL) {
5058 os_free(mode->channels);
5060 return modes; /* Could not add 802.11b mode */
5063 for (i = 0; i < mode11g->num_rates; i++) {
5064 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 &&
5065 mode11g->rates[i] != 55 && mode11g->rates[i] != 110)
5067 mode->rates[mode->num_rates] = mode11g->rates[i];
5069 if (mode->num_rates == 4)
5073 if (mode->num_rates == 0) {
5074 os_free(mode->channels);
5075 os_free(mode->rates);
5077 return modes; /* No 802.11b rates */
5080 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
5087 static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start,
5092 for (c = 0; c < mode->num_channels; c++) {
5093 struct hostapd_channel_data *chan = &mode->channels[c];
5094 if (chan->freq - 10 >= start && chan->freq + 10 <= end)
5095 chan->flag |= HOSTAPD_CHAN_HT40;
5100 static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start,
5105 for (c = 0; c < mode->num_channels; c++) {
5106 struct hostapd_channel_data *chan = &mode->channels[c];
5107 if (!(chan->flag & HOSTAPD_CHAN_HT40))
5109 if (chan->freq - 30 >= start && chan->freq - 10 <= end)
5110 chan->flag |= HOSTAPD_CHAN_HT40MINUS;
5111 if (chan->freq + 10 >= start && chan->freq + 30 <= end)
5112 chan->flag |= HOSTAPD_CHAN_HT40PLUS;
5117 static void nl80211_reg_rule_ht40(struct nlattr *tb[],
5118 struct phy_info_arg *results)
5120 u32 start, end, max_bw;
5123 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
5124 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
5125 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
5128 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
5129 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
5130 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
5132 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz",
5133 start, end, max_bw);
5137 for (m = 0; m < *results->num_modes; m++) {
5138 if (!(results->modes[m].ht_capab &
5139 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
5141 nl80211_set_ht40_mode(&results->modes[m], start, end);
5146 static void nl80211_reg_rule_sec(struct nlattr *tb[],
5147 struct phy_info_arg *results)
5149 u32 start, end, max_bw;
5152 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
5153 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
5154 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
5157 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
5158 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
5159 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
5164 for (m = 0; m < *results->num_modes; m++) {
5165 if (!(results->modes[m].ht_capab &
5166 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
5168 nl80211_set_ht40_mode_sec(&results->modes[m], start, end);
5173 static int nl80211_get_reg(struct nl_msg *msg, void *arg)
5175 struct phy_info_arg *results = arg;
5176 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
5177 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
5178 struct nlattr *nl_rule;
5179 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1];
5181 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
5182 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
5183 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
5184 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
5185 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
5186 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
5187 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
5190 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
5191 genlmsg_attrlen(gnlh, 0), NULL);
5192 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] ||
5193 !tb_msg[NL80211_ATTR_REG_RULES]) {
5194 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information "
5199 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s",
5200 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]));
5202 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
5204 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
5205 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
5206 nl80211_reg_rule_ht40(tb_rule, results);
5209 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
5211 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
5212 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
5213 nl80211_reg_rule_sec(tb_rule, results);
5220 static int nl80211_set_ht40_flags(struct wpa_driver_nl80211_data *drv,
5221 struct phy_info_arg *results)
5225 msg = nlmsg_alloc();
5229 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG);
5230 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results);
5234 static struct hostapd_hw_modes *
5235 wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
5237 struct i802_bss *bss = priv;
5238 struct wpa_driver_nl80211_data *drv = bss->drv;
5240 struct phy_info_arg result = {
5241 .num_modes = num_modes,
5248 msg = nlmsg_alloc();
5252 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY);
5254 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5256 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) {
5257 nl80211_set_ht40_flags(drv, &result);
5258 return wpa_driver_nl80211_add_11b(result.modes, num_modes);
5267 static int wpa_driver_nl80211_send_mntr(struct wpa_driver_nl80211_data *drv,
5268 const void *data, size_t len,
5269 int encrypt, int noack)
5272 0x00, 0x00, /* radiotap version */
5273 0x0e, 0x00, /* radiotap length */
5274 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */
5275 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */
5277 0x00, 0x00, /* RX and TX flags to indicate that */
5278 0x00, 0x00, /* this is the injected frame directly */
5280 struct iovec iov[2] = {
5282 .iov_base = &rtap_hdr,
5283 .iov_len = sizeof(rtap_hdr),
5286 .iov_base = (void *) data,
5290 struct msghdr msg = {
5295 .msg_control = NULL,
5296 .msg_controllen = 0,
5303 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP;
5305 if (drv->monitor_sock < 0) {
5306 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available "
5307 "for %s", __func__);
5312 txflags |= IEEE80211_RADIOTAP_F_TX_NOACK;
5313 WPA_PUT_LE16(&rtap_hdr[12], txflags);
5315 res = sendmsg(drv->monitor_sock, &msg, 0);
5317 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno));
5324 static int wpa_driver_nl80211_send_frame(struct i802_bss *bss,
5325 const void *data, size_t len,
5326 int encrypt, int noack,
5327 unsigned int freq, int no_cck,
5328 int offchanok, unsigned int wait_time)
5330 struct wpa_driver_nl80211_data *drv = bss->drv;
5336 if (drv->use_monitor)
5337 return wpa_driver_nl80211_send_mntr(drv, data, len,
5340 return nl80211_send_frame_cmd(bss, freq, wait_time, data, len,
5341 &cookie, no_cck, noack, offchanok);
5345 static int wpa_driver_nl80211_send_mlme_freq(struct i802_bss *bss,
5347 size_t data_len, int noack,
5348 unsigned int freq, int no_cck,
5350 unsigned int wait_time)
5352 struct wpa_driver_nl80211_data *drv = bss->drv;
5353 struct ieee80211_mgmt *mgmt;
5357 mgmt = (struct ieee80211_mgmt *) data;
5358 fc = le_to_host16(mgmt->frame_control);
5360 if (is_sta_interface(drv->nlmode) &&
5361 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
5362 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) {
5364 * The use of last_mgmt_freq is a bit of a hack,
5365 * but it works due to the single-threaded nature
5366 * of wpa_supplicant.
5369 freq = drv->last_mgmt_freq;
5370 return nl80211_send_frame_cmd(bss, freq, 0,
5371 data, data_len, NULL, 1, noack,
5375 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) {
5378 return nl80211_send_frame_cmd(bss, freq,
5379 (int) freq == bss->freq ? 0 :
5382 &drv->send_action_cookie,
5383 no_cck, noack, offchanok);
5386 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
5387 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) {
5389 * Only one of the authentication frame types is encrypted.
5390 * In order for static WEP encryption to work properly (i.e.,
5391 * to not encrypt the frame), we need to tell mac80211 about
5392 * the frames that must not be encrypted.
5394 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
5395 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction);
5396 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3)
5400 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt,
5401 noack, freq, no_cck, offchanok,
5406 static int wpa_driver_nl80211_send_mlme(void *priv, const u8 *data,
5407 size_t data_len, int noack)
5409 struct i802_bss *bss = priv;
5410 return wpa_driver_nl80211_send_mlme_freq(bss, data, data_len, noack,
5415 static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble,
5416 int slot, int ht_opmode, int ap_isolate,
5419 struct wpa_driver_nl80211_data *drv = bss->drv;
5422 msg = nlmsg_alloc();
5426 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS);
5429 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts);
5431 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble);
5433 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot);
5435 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode);
5436 if (ap_isolate >= 0)
5437 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate);
5440 u8 rates[NL80211_MAX_SUPP_RATES];
5444 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0;
5446 rates[rates_len++] = basic_rates[i] / 5;
5448 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates);
5451 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
5453 return send_and_recv_msgs(drv, msg, NULL, NULL);
5460 static int wpa_driver_nl80211_set_ap(void *priv,
5461 struct wpa_driver_ap_params *params)
5463 struct i802_bss *bss = priv;
5464 struct wpa_driver_nl80211_data *drv = bss->drv;
5466 u8 cmd = NL80211_CMD_NEW_BEACON;
5469 int ifindex = if_nametoindex(bss->ifname);
5474 beacon_set = bss->beacon_set;
5476 msg = nlmsg_alloc();
5480 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)",
5483 cmd = NL80211_CMD_SET_BEACON;
5485 nl80211_cmd(drv, msg, 0, cmd);
5486 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head);
5487 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail);
5488 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
5489 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int);
5490 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period);
5491 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
5493 if (params->proberesp && params->proberesp_len)
5494 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len,
5496 switch (params->hide_ssid) {
5497 case NO_SSID_HIDING:
5498 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
5499 NL80211_HIDDEN_SSID_NOT_IN_USE);
5501 case HIDDEN_SSID_ZERO_LEN:
5502 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
5503 NL80211_HIDDEN_SSID_ZERO_LEN);
5505 case HIDDEN_SSID_ZERO_CONTENTS:
5506 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
5507 NL80211_HIDDEN_SSID_ZERO_CONTENTS);
5510 if (params->privacy)
5511 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
5512 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) ==
5513 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) {
5514 /* Leave out the attribute */
5515 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED)
5516 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE,
5517 NL80211_AUTHTYPE_SHARED_KEY);
5519 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE,
5520 NL80211_AUTHTYPE_OPEN_SYSTEM);
5523 if (params->wpa_version & WPA_PROTO_WPA)
5524 ver |= NL80211_WPA_VERSION_1;
5525 if (params->wpa_version & WPA_PROTO_RSN)
5526 ver |= NL80211_WPA_VERSION_2;
5528 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
5531 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X)
5532 suites[num_suites++] = WLAN_AKM_SUITE_8021X;
5533 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK)
5534 suites[num_suites++] = WLAN_AKM_SUITE_PSK;
5536 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES,
5537 num_suites * sizeof(u32), suites);
5540 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X &&
5541 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40))
5542 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT);
5545 if (params->pairwise_ciphers & WPA_CIPHER_CCMP)
5546 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP;
5547 if (params->pairwise_ciphers & WPA_CIPHER_GCMP)
5548 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP;
5549 if (params->pairwise_ciphers & WPA_CIPHER_TKIP)
5550 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP;
5551 if (params->pairwise_ciphers & WPA_CIPHER_WEP104)
5552 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104;
5553 if (params->pairwise_ciphers & WPA_CIPHER_WEP40)
5554 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40;
5556 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE,
5557 num_suites * sizeof(u32), suites);
5560 switch (params->group_cipher) {
5561 case WPA_CIPHER_CCMP:
5562 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
5563 WLAN_CIPHER_SUITE_CCMP);
5565 case WPA_CIPHER_GCMP:
5566 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
5567 WLAN_CIPHER_SUITE_GCMP);
5569 case WPA_CIPHER_TKIP:
5570 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
5571 WLAN_CIPHER_SUITE_TKIP);
5573 case WPA_CIPHER_WEP104:
5574 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
5575 WLAN_CIPHER_SUITE_WEP104);
5577 case WPA_CIPHER_WEP40:
5578 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
5579 WLAN_CIPHER_SUITE_WEP40);
5583 if (params->beacon_ies) {
5584 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies),
5585 wpabuf_head(params->beacon_ies));
5587 if (params->proberesp_ies) {
5588 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP,
5589 wpabuf_len(params->proberesp_ies),
5590 wpabuf_head(params->proberesp_ies));
5592 if (params->assocresp_ies) {
5593 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP,
5594 wpabuf_len(params->assocresp_ies),
5595 wpabuf_head(params->assocresp_ies));
5598 if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) {
5599 NLA_PUT_U16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT,
5600 params->ap_max_inactivity);
5603 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5605 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)",
5606 ret, strerror(-ret));
5608 bss->beacon_set = 1;
5609 nl80211_set_bss(bss, params->cts_protect, params->preamble,
5610 params->short_slot_time, params->ht_opmode,
5611 params->isolate, params->basic_rates);
5620 static int wpa_driver_nl80211_set_freq(struct i802_bss *bss,
5621 int freq, int ht_enabled,
5622 int sec_channel_offset)
5624 struct wpa_driver_nl80211_data *drv = bss->drv;
5628 wpa_printf(MSG_DEBUG, "nl80211: Set freq %d (ht_enabled=%d "
5629 "sec_channel_offset=%d)",
5630 freq, ht_enabled, sec_channel_offset);
5631 msg = nlmsg_alloc();
5635 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
5637 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5638 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
5640 switch (sec_channel_offset) {
5642 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
5643 NL80211_CHAN_HT40MINUS);
5646 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
5647 NL80211_CHAN_HT40PLUS);
5650 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
5656 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5662 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): "
5663 "%d (%s)", freq, ret, strerror(-ret));
5670 static u32 sta_flags_nl80211(int flags)
5674 if (flags & WPA_STA_AUTHORIZED)
5675 f |= BIT(NL80211_STA_FLAG_AUTHORIZED);
5676 if (flags & WPA_STA_WMM)
5677 f |= BIT(NL80211_STA_FLAG_WME);
5678 if (flags & WPA_STA_SHORT_PREAMBLE)
5679 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
5680 if (flags & WPA_STA_MFP)
5681 f |= BIT(NL80211_STA_FLAG_MFP);
5682 if (flags & WPA_STA_TDLS_PEER)
5683 f |= BIT(NL80211_STA_FLAG_TDLS_PEER);
5689 static int wpa_driver_nl80211_sta_add(void *priv,
5690 struct hostapd_sta_add_params *params)
5692 struct i802_bss *bss = priv;
5693 struct wpa_driver_nl80211_data *drv = bss->drv;
5694 struct nl_msg *msg, *wme = NULL;
5695 struct nl80211_sta_flag_update upd;
5698 if ((params->flags & WPA_STA_TDLS_PEER) &&
5699 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
5702 msg = nlmsg_alloc();
5706 nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION :
5707 NL80211_CMD_NEW_STATION);
5709 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
5710 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr);
5711 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len,
5712 params->supp_rates);
5714 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid);
5715 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL,
5716 params->listen_interval);
5718 if (params->ht_capabilities) {
5719 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY,
5720 sizeof(*params->ht_capabilities),
5721 params->ht_capabilities);
5724 os_memset(&upd, 0, sizeof(upd));
5725 upd.mask = sta_flags_nl80211(params->flags);
5727 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
5729 if (params->flags & WPA_STA_WMM) {
5730 wme = nlmsg_alloc();
5732 goto nla_put_failure;
5734 NLA_PUT_U8(wme, NL80211_STA_WME_UAPSD_QUEUES,
5735 params->qosinfo & WMM_QOSINFO_STA_AC_MASK);
5736 NLA_PUT_U8(wme, NL80211_STA_WME_MAX_SP,
5737 (params->qosinfo > WMM_QOSINFO_STA_SP_SHIFT) &
5738 WMM_QOSINFO_STA_SP_MASK);
5739 if (nla_put_nested(msg, NL80211_ATTR_STA_WME, wme) < 0)
5740 goto nla_put_failure;
5743 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5746 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION "
5747 "result: %d (%s)", params->set ? "SET" : "NEW", ret,
5758 static int wpa_driver_nl80211_sta_remove(void *priv, const u8 *addr)
5760 struct i802_bss *bss = priv;
5761 struct wpa_driver_nl80211_data *drv = bss->drv;
5765 msg = nlmsg_alloc();
5769 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION);
5771 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
5772 if_nametoindex(bss->ifname));
5773 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5775 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5785 static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
5790 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx);
5792 /* stop listening for EAPOL on this interface */
5793 del_ifidx(drv, ifidx);
5795 msg = nlmsg_alloc();
5797 goto nla_put_failure;
5799 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE);
5800 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx);
5802 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
5807 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx);
5811 static const char * nl80211_iftype_str(enum nl80211_iftype mode)
5814 case NL80211_IFTYPE_ADHOC:
5816 case NL80211_IFTYPE_STATION:
5818 case NL80211_IFTYPE_AP:
5820 case NL80211_IFTYPE_MONITOR:
5822 case NL80211_IFTYPE_P2P_CLIENT:
5823 return "P2P_CLIENT";
5824 case NL80211_IFTYPE_P2P_GO:
5832 static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv,
5834 enum nl80211_iftype iftype,
5835 const u8 *addr, int wds)
5837 struct nl_msg *msg, *flags = NULL;
5841 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)",
5842 iftype, nl80211_iftype_str(iftype));
5844 msg = nlmsg_alloc();
5848 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE);
5849 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5850 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname);
5851 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype);
5853 if (iftype == NL80211_IFTYPE_MONITOR) {
5856 flags = nlmsg_alloc();
5858 goto nla_put_failure;
5860 NLA_PUT_FLAG(flags, NL80211_MNTR_FLAG_COOK_FRAMES);
5862 err = nla_put_nested(msg, NL80211_ATTR_MNTR_FLAGS, flags);
5867 goto nla_put_failure;
5869 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds);
5872 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5877 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)",
5878 ifname, ret, strerror(-ret));
5882 ifidx = if_nametoindex(ifname);
5883 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d",
5889 /* start listening for EAPOL on this interface */
5890 add_ifidx(drv, ifidx);
5892 if (addr && iftype != NL80211_IFTYPE_MONITOR &&
5893 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) {
5894 nl80211_remove_iface(drv, ifidx);
5902 static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
5903 const char *ifname, enum nl80211_iftype iftype,
5904 const u8 *addr, int wds)
5908 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds);
5910 /* if error occurred and interface exists already */
5911 if (ret == -ENFILE && if_nametoindex(ifname)) {
5912 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname);
5914 /* Try to remove the interface that was already there. */
5915 nl80211_remove_iface(drv, if_nametoindex(ifname));
5917 /* Try to create the interface again */
5918 ret = nl80211_create_iface_once(drv, ifname, iftype, addr,
5922 if (ret >= 0 && is_p2p_interface(iftype))
5923 nl80211_disable_11b_rates(drv, ret, 1);
5929 static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok)
5931 struct ieee80211_hdr *hdr;
5933 union wpa_event_data event;
5935 hdr = (struct ieee80211_hdr *) buf;
5936 fc = le_to_host16(hdr->frame_control);
5938 os_memset(&event, 0, sizeof(event));
5939 event.tx_status.type = WLAN_FC_GET_TYPE(fc);
5940 event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
5941 event.tx_status.dst = hdr->addr1;
5942 event.tx_status.data = buf;
5943 event.tx_status.data_len = len;
5944 event.tx_status.ack = ok;
5945 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event);
5949 static void from_unknown_sta(struct wpa_driver_nl80211_data *drv,
5950 u8 *buf, size_t len)
5952 struct ieee80211_hdr *hdr = (void *)buf;
5954 union wpa_event_data event;
5956 if (len < sizeof(*hdr))
5959 fc = le_to_host16(hdr->frame_control);
5961 os_memset(&event, 0, sizeof(event));
5962 event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len);
5963 event.rx_from_unknown.addr = hdr->addr2;
5964 event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) ==
5965 (WLAN_FC_FROMDS | WLAN_FC_TODS);
5966 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event);
5970 static void handle_frame(struct wpa_driver_nl80211_data *drv,
5971 u8 *buf, size_t len, int datarate, int ssi_signal)
5973 struct ieee80211_hdr *hdr;
5975 union wpa_event_data event;
5977 hdr = (struct ieee80211_hdr *) buf;
5978 fc = le_to_host16(hdr->frame_control);
5980 switch (WLAN_FC_GET_TYPE(fc)) {
5981 case WLAN_FC_TYPE_MGMT:
5982 os_memset(&event, 0, sizeof(event));
5983 event.rx_mgmt.frame = buf;
5984 event.rx_mgmt.frame_len = len;
5985 event.rx_mgmt.datarate = datarate;
5986 event.rx_mgmt.ssi_signal = ssi_signal;
5987 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
5989 case WLAN_FC_TYPE_CTRL:
5990 /* can only get here with PS-Poll frames */
5991 wpa_printf(MSG_DEBUG, "CTRL");
5992 from_unknown_sta(drv, buf, len);
5994 case WLAN_FC_TYPE_DATA:
5995 from_unknown_sta(drv, buf, len);
6001 static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx)
6003 struct wpa_driver_nl80211_data *drv = eloop_ctx;
6005 unsigned char buf[3000];
6006 struct ieee80211_radiotap_iterator iter;
6008 int datarate = 0, ssi_signal = 0;
6009 int injected = 0, failed = 0, rxflags = 0;
6011 len = recv(sock, buf, sizeof(buf), 0);
6017 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) {
6018 printf("received invalid radiotap frame\n");
6023 ret = ieee80211_radiotap_iterator_next(&iter);
6027 printf("received invalid radiotap frame (%d)\n", ret);
6030 switch (iter.this_arg_index) {
6031 case IEEE80211_RADIOTAP_FLAGS:
6032 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS)
6035 case IEEE80211_RADIOTAP_RX_FLAGS:
6038 case IEEE80211_RADIOTAP_TX_FLAGS:
6040 failed = le_to_host16((*(uint16_t *) iter.this_arg)) &
6041 IEEE80211_RADIOTAP_F_TX_FAIL;
6043 case IEEE80211_RADIOTAP_DATA_RETRIES:
6045 case IEEE80211_RADIOTAP_CHANNEL:
6046 /* TODO: convert from freq/flags to channel number */
6048 case IEEE80211_RADIOTAP_RATE:
6049 datarate = *iter.this_arg * 5;
6051 case IEEE80211_RADIOTAP_DBM_ANTSIGNAL:
6052 ssi_signal = (s8) *iter.this_arg;
6057 if (rxflags && injected)
6061 handle_frame(drv, buf + iter.max_length,
6062 len - iter.max_length, datarate, ssi_signal);
6064 handle_tx_callback(drv->ctx, buf + iter.max_length,
6065 len - iter.max_length, !failed);
6070 * we post-process the filter code later and rewrite
6071 * this to the offset to the last instruction
6076 static struct sock_filter msock_filter_insns[] = {
6078 * do a little-endian load of the radiotap length field
6080 /* load lower byte into A */
6081 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2),
6082 /* put it into X (== index register) */
6083 BPF_STMT(BPF_MISC| BPF_TAX, 0),
6084 /* load upper byte into A */
6085 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3),
6086 /* left-shift it by 8 */
6087 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8),
6089 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0),
6090 /* put result into X */
6091 BPF_STMT(BPF_MISC| BPF_TAX, 0),
6094 * Allow management frames through, this also gives us those
6095 * management frames that we sent ourselves with status
6097 /* load the lower byte of the IEEE 802.11 frame control field */
6098 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
6099 /* mask off frame type and version */
6100 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF),
6101 /* accept frame if it's both 0, fall through otherwise */
6102 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0),
6105 * TODO: add a bit to radiotap RX flags that indicates
6106 * that the sending station is not associated, then
6107 * add a filter here that filters on our DA and that flag
6108 * to allow us to deauth frames to that bad station.
6110 * For now allow all To DS data frames through.
6112 /* load the IEEE 802.11 frame control field */
6113 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0),
6114 /* mask off frame type, version and DS status */
6115 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03),
6116 /* accept frame if version 0, type 2 and To DS, fall through otherwise
6118 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0),
6122 * drop non-data frames
6124 /* load the lower byte of the frame control field */
6125 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
6126 /* mask off QoS bit */
6127 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c),
6128 /* drop non-data frames */
6129 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL),
6131 /* load the upper byte of the frame control field */
6132 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1),
6133 /* mask off toDS/fromDS */
6134 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03),
6135 /* accept WDS frames */
6136 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0),
6139 * add header length to index
6141 /* load the lower byte of the frame control field */
6142 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
6143 /* mask off QoS bit */
6144 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80),
6145 /* right shift it by 6 to give 0 or 2 */
6146 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6),
6147 /* add data frame header length */
6148 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24),
6149 /* add index, was start of 802.11 header */
6150 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0),
6151 /* move to index, now start of LL header */
6152 BPF_STMT(BPF_MISC | BPF_TAX, 0),
6155 * Accept empty data frames, we use those for
6158 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0),
6159 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0),
6162 * Accept EAPOL frames
6164 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0),
6165 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL),
6166 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4),
6167 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL),
6169 /* keep these last two statements or change the code below */
6170 /* return 0 == "DROP" */
6171 BPF_STMT(BPF_RET | BPF_K, 0),
6172 /* return ~0 == "keep all" */
6173 BPF_STMT(BPF_RET | BPF_K, ~0),
6176 static struct sock_fprog msock_filter = {
6177 .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]),
6178 .filter = msock_filter_insns,
6182 static int add_monitor_filter(int s)
6186 /* rewrite all PASS/FAIL jump offsets */
6187 for (idx = 0; idx < msock_filter.len; idx++) {
6188 struct sock_filter *insn = &msock_filter_insns[idx];
6190 if (BPF_CLASS(insn->code) == BPF_JMP) {
6191 if (insn->code == (BPF_JMP|BPF_JA)) {
6192 if (insn->k == PASS)
6193 insn->k = msock_filter.len - idx - 2;
6194 else if (insn->k == FAIL)
6195 insn->k = msock_filter.len - idx - 3;
6198 if (insn->jt == PASS)
6199 insn->jt = msock_filter.len - idx - 2;
6200 else if (insn->jt == FAIL)
6201 insn->jt = msock_filter.len - idx - 3;
6203 if (insn->jf == PASS)
6204 insn->jf = msock_filter.len - idx - 2;
6205 else if (insn->jf == FAIL)
6206 insn->jf = msock_filter.len - idx - 3;
6210 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER,
6211 &msock_filter, sizeof(msock_filter))) {
6212 perror("SO_ATTACH_FILTER");
6220 static void nl80211_remove_monitor_interface(
6221 struct wpa_driver_nl80211_data *drv)
6223 drv->monitor_refcount--;
6224 if (drv->monitor_refcount > 0)
6227 if (drv->monitor_ifidx >= 0) {
6228 nl80211_remove_iface(drv, drv->monitor_ifidx);
6229 drv->monitor_ifidx = -1;
6231 if (drv->monitor_sock >= 0) {
6232 eloop_unregister_read_sock(drv->monitor_sock);
6233 close(drv->monitor_sock);
6234 drv->monitor_sock = -1;
6240 nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv)
6243 struct sockaddr_ll ll;
6247 if (drv->monitor_ifidx >= 0) {
6248 drv->monitor_refcount++;
6252 if (os_strncmp(drv->first_bss.ifname, "p2p-", 4) == 0) {
6254 * P2P interface name is of the format p2p-%s-%d. For monitor
6255 * interface name corresponding to P2P GO, replace "p2p-" with
6256 * "mon-" to retain the same interface name length and to
6257 * indicate that it is a monitor interface.
6259 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss.ifname + 4);
6261 /* Non-P2P interface with AP functionality. */
6262 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss.ifname);
6265 buf[IFNAMSIZ - 1] = '\0';
6267 drv->monitor_ifidx =
6268 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL,
6271 if (drv->monitor_ifidx == -EOPNOTSUPP) {
6273 * This is backward compatibility for a few versions of
6274 * the kernel only that didn't advertise the right
6275 * attributes for the only driver that then supported
6276 * AP mode w/o monitor -- ath6kl.
6278 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support "
6279 "monitor interface type - try to run without it");
6280 drv->device_ap_sme = 1;
6283 if (drv->monitor_ifidx < 0)
6286 if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1))
6289 memset(&ll, 0, sizeof(ll));
6290 ll.sll_family = AF_PACKET;
6291 ll.sll_ifindex = drv->monitor_ifidx;
6292 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
6293 if (drv->monitor_sock < 0) {
6294 perror("socket[PF_PACKET,SOCK_RAW]");
6298 if (add_monitor_filter(drv->monitor_sock)) {
6299 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor "
6300 "interface; do filtering in user space");
6301 /* This works, but will cost in performance. */
6304 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) {
6305 perror("monitor socket bind");
6309 optlen = sizeof(optval);
6312 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) {
6313 perror("Failed to set socket priority");
6317 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read,
6319 printf("Could not register monitor read socket\n");
6325 nl80211_remove_monitor_interface(drv);
6330 static int nl80211_setup_ap(struct i802_bss *bss)
6332 struct wpa_driver_nl80211_data *drv = bss->drv;
6334 wpa_printf(MSG_DEBUG, "nl80211: Setup AP - device_ap_sme=%d "
6335 "use_monitor=%d", drv->device_ap_sme, drv->use_monitor);
6338 * Disable Probe Request reporting unless we need it in this way for
6339 * devices that include the AP SME, in the other case (unless using
6340 * monitor iface) we'll get it through the nl_mgmt socket instead.
6342 if (!drv->device_ap_sme)
6343 wpa_driver_nl80211_probe_req_report(bss, 0);
6345 if (!drv->device_ap_sme && !drv->use_monitor)
6346 if (nl80211_mgmt_subscribe_ap(bss))
6349 if (drv->device_ap_sme && !drv->use_monitor)
6350 if (nl80211_mgmt_subscribe_ap_dev_sme(bss))
6353 if (!drv->device_ap_sme && drv->use_monitor &&
6354 nl80211_create_monitor_interface(drv) &&
6355 !drv->device_ap_sme)
6358 if (drv->device_ap_sme &&
6359 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) {
6360 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable "
6361 "Probe Request frame reporting in AP mode");
6362 /* Try to survive without this */
6369 static void nl80211_teardown_ap(struct i802_bss *bss)
6371 struct wpa_driver_nl80211_data *drv = bss->drv;
6373 if (drv->device_ap_sme) {
6374 wpa_driver_nl80211_probe_req_report(bss, 0);
6375 if (!drv->use_monitor)
6376 nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)");
6377 } else if (drv->use_monitor)
6378 nl80211_remove_monitor_interface(drv);
6380 nl80211_mgmt_unsubscribe(bss, "AP teardown");
6382 bss->beacon_set = 0;
6386 static int nl80211_send_eapol_data(struct i802_bss *bss,
6387 const u8 *addr, const u8 *data,
6390 struct sockaddr_ll ll;
6393 if (bss->drv->eapol_tx_sock < 0) {
6394 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL");
6398 os_memset(&ll, 0, sizeof(ll));
6399 ll.sll_family = AF_PACKET;
6400 ll.sll_ifindex = bss->ifindex;
6401 ll.sll_protocol = htons(ETH_P_PAE);
6402 ll.sll_halen = ETH_ALEN;
6403 os_memcpy(ll.sll_addr, addr, ETH_ALEN);
6404 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0,
6405 (struct sockaddr *) &ll, sizeof(ll));
6407 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s",
6414 static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
6416 static int wpa_driver_nl80211_hapd_send_eapol(
6417 void *priv, const u8 *addr, const u8 *data,
6418 size_t data_len, int encrypt, const u8 *own_addr, u32 flags)
6420 struct i802_bss *bss = priv;
6421 struct wpa_driver_nl80211_data *drv = bss->drv;
6422 struct ieee80211_hdr *hdr;
6426 int qos = flags & WPA_STA_WMM;
6428 if (drv->device_ap_sme || !drv->use_monitor)
6429 return nl80211_send_eapol_data(bss, addr, data, data_len);
6431 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 +
6433 hdr = os_zalloc(len);
6435 printf("malloc() failed for i802_send_data(len=%lu)\n",
6436 (unsigned long) len);
6440 hdr->frame_control =
6441 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA);
6442 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS);
6444 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP);
6446 hdr->frame_control |=
6447 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4);
6450 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN);
6451 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
6452 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
6453 pos = (u8 *) (hdr + 1);
6456 /* Set highest priority in QoS header */
6462 memcpy(pos, rfc1042_header, sizeof(rfc1042_header));
6463 pos += sizeof(rfc1042_header);
6464 WPA_PUT_BE16(pos, ETH_P_PAE);
6466 memcpy(pos, data, data_len);
6468 res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0,
6471 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - "
6473 (unsigned long) len, errno, strerror(errno));
6481 static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr,
6483 int flags_or, int flags_and)
6485 struct i802_bss *bss = priv;
6486 struct wpa_driver_nl80211_data *drv = bss->drv;
6487 struct nl_msg *msg, *flags = NULL;
6488 struct nl80211_sta_flag_update upd;
6490 msg = nlmsg_alloc();
6494 flags = nlmsg_alloc();
6500 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
6502 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
6503 if_nametoindex(bss->ifname));
6504 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6507 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This
6508 * can be removed eventually.
6510 if (total_flags & WPA_STA_AUTHORIZED)
6511 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_AUTHORIZED);
6513 if (total_flags & WPA_STA_WMM)
6514 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_WME);
6516 if (total_flags & WPA_STA_SHORT_PREAMBLE)
6517 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_SHORT_PREAMBLE);
6519 if (total_flags & WPA_STA_MFP)
6520 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_MFP);
6522 if (total_flags & WPA_STA_TDLS_PEER)
6523 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_TDLS_PEER);
6525 if (nla_put_nested(msg, NL80211_ATTR_STA_FLAGS, flags))
6526 goto nla_put_failure;
6528 os_memset(&upd, 0, sizeof(upd));
6529 upd.mask = sta_flags_nl80211(flags_or | ~flags_and);
6530 upd.set = sta_flags_nl80211(flags_or);
6531 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
6535 return send_and_recv_msgs(drv, msg, NULL, NULL);
6543 static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv,
6544 struct wpa_driver_associate_params *params)
6546 enum nl80211_iftype nlmode;
6549 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P "
6551 nlmode = NL80211_IFTYPE_P2P_GO;
6553 nlmode = NL80211_IFTYPE_AP;
6555 if (wpa_driver_nl80211_set_mode(&drv->first_bss, nlmode) ||
6556 wpa_driver_nl80211_set_freq(&drv->first_bss, params->freq, 0, 0)) {
6557 nl80211_remove_monitor_interface(drv);
6565 static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv)
6570 msg = nlmsg_alloc();
6574 nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS);
6575 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6576 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6579 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d "
6580 "(%s)", ret, strerror(-ret));
6581 goto nla_put_failure;
6585 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully");
6593 static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv,
6594 struct wpa_driver_associate_params *params)
6600 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex);
6602 if (wpa_driver_nl80211_set_mode(&drv->first_bss,
6603 NL80211_IFTYPE_ADHOC)) {
6604 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into "
6610 msg = nlmsg_alloc();
6614 nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS);
6615 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6617 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid))
6618 goto nla_put_failure;
6620 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
6621 params->ssid, params->ssid_len);
6622 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
6624 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
6625 drv->ssid_len = params->ssid_len;
6627 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
6628 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
6630 ret = nl80211_set_conn_keys(params, msg);
6632 goto nla_put_failure;
6634 if (params->bssid && params->fixed_bssid) {
6635 wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR,
6636 MAC2STR(params->bssid));
6637 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
6640 if (params->key_mgmt_suite == KEY_MGMT_802_1X ||
6641 params->key_mgmt_suite == KEY_MGMT_PSK ||
6642 params->key_mgmt_suite == KEY_MGMT_802_1X_SHA256 ||
6643 params->key_mgmt_suite == KEY_MGMT_PSK_SHA256) {
6644 wpa_printf(MSG_DEBUG, " * control port");
6645 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
6648 if (params->wpa_ie) {
6649 wpa_hexdump(MSG_DEBUG,
6650 " * Extra IEs for Beacon/Probe Response frames",
6651 params->wpa_ie, params->wpa_ie_len);
6652 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
6656 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6659 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)",
6660 ret, strerror(-ret));
6662 if (ret == -EALREADY && count == 1) {
6663 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after "
6665 nl80211_leave_ibss(drv);
6670 goto nla_put_failure;
6673 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully");
6681 static int wpa_driver_nl80211_try_connect(
6682 struct wpa_driver_nl80211_data *drv,
6683 struct wpa_driver_associate_params *params)
6686 enum nl80211_auth_type type;
6690 msg = nlmsg_alloc();
6694 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex);
6695 nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT);
6697 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6698 if (params->bssid) {
6699 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
6700 MAC2STR(params->bssid));
6701 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
6704 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
6705 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
6707 if (params->bg_scan_period >= 0) {
6708 wpa_printf(MSG_DEBUG, " * bg scan period=%d",
6709 params->bg_scan_period);
6710 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD,
6711 params->bg_scan_period);
6714 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
6715 params->ssid, params->ssid_len);
6716 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
6718 if (params->ssid_len > sizeof(drv->ssid))
6719 goto nla_put_failure;
6720 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
6721 drv->ssid_len = params->ssid_len;
6723 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
6725 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
6729 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
6731 if (params->auth_alg & WPA_AUTH_ALG_SHARED)
6733 if (params->auth_alg & WPA_AUTH_ALG_LEAP)
6736 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic "
6738 goto skip_auth_type;
6741 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
6742 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
6743 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
6744 type = NL80211_AUTHTYPE_SHARED_KEY;
6745 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
6746 type = NL80211_AUTHTYPE_NETWORK_EAP;
6747 else if (params->auth_alg & WPA_AUTH_ALG_FT)
6748 type = NL80211_AUTHTYPE_FT;
6750 goto nla_put_failure;
6752 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
6753 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
6756 if (params->wpa_proto) {
6757 enum nl80211_wpa_versions ver = 0;
6759 if (params->wpa_proto & WPA_PROTO_WPA)
6760 ver |= NL80211_WPA_VERSION_1;
6761 if (params->wpa_proto & WPA_PROTO_RSN)
6762 ver |= NL80211_WPA_VERSION_2;
6764 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver);
6765 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
6768 if (params->pairwise_suite != CIPHER_NONE) {
6771 switch (params->pairwise_suite) {
6773 cipher = WLAN_CIPHER_SUITE_SMS4;
6776 cipher = WLAN_CIPHER_SUITE_WEP40;
6779 cipher = WLAN_CIPHER_SUITE_WEP104;
6782 cipher = WLAN_CIPHER_SUITE_CCMP;
6785 cipher = WLAN_CIPHER_SUITE_GCMP;
6789 cipher = WLAN_CIPHER_SUITE_TKIP;
6792 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
6795 if (params->group_suite != CIPHER_NONE) {
6798 switch (params->group_suite) {
6800 cipher = WLAN_CIPHER_SUITE_SMS4;
6803 cipher = WLAN_CIPHER_SUITE_WEP40;
6806 cipher = WLAN_CIPHER_SUITE_WEP104;
6809 cipher = WLAN_CIPHER_SUITE_CCMP;
6812 cipher = WLAN_CIPHER_SUITE_GCMP;
6816 cipher = WLAN_CIPHER_SUITE_TKIP;
6819 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
6822 if (params->key_mgmt_suite == KEY_MGMT_802_1X ||
6823 params->key_mgmt_suite == KEY_MGMT_PSK ||
6824 params->key_mgmt_suite == KEY_MGMT_CCKM) {
6825 int mgmt = WLAN_AKM_SUITE_PSK;
6827 switch (params->key_mgmt_suite) {
6829 mgmt = WLAN_AKM_SUITE_CCKM;
6831 case KEY_MGMT_802_1X:
6832 mgmt = WLAN_AKM_SUITE_8021X;
6836 mgmt = WLAN_AKM_SUITE_PSK;
6839 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt);
6842 if (params->disable_ht)
6843 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT);
6845 if (params->htcaps && params->htcaps_mask) {
6846 int sz = sizeof(struct ieee80211_ht_capabilities);
6847 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps);
6848 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz,
6849 params->htcaps_mask);
6852 ret = nl80211_set_conn_keys(params, msg);
6854 goto nla_put_failure;
6856 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6859 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d "
6860 "(%s)", ret, strerror(-ret));
6861 goto nla_put_failure;
6864 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully");
6873 static int wpa_driver_nl80211_connect(
6874 struct wpa_driver_nl80211_data *drv,
6875 struct wpa_driver_associate_params *params)
6877 int ret = wpa_driver_nl80211_try_connect(drv, params);
6878 if (ret == -EALREADY) {
6880 * cfg80211 does not currently accept new connections if
6881 * we are already connected. As a workaround, force
6882 * disconnection and try again.
6884 wpa_printf(MSG_DEBUG, "nl80211: Explicitly "
6885 "disconnecting before reassociation "
6887 if (wpa_driver_nl80211_disconnect(
6888 drv, WLAN_REASON_PREV_AUTH_NOT_VALID))
6890 /* Ignore the next local disconnect message. */
6891 drv->ignore_next_local_disconnect = 1;
6892 ret = wpa_driver_nl80211_try_connect(drv, params);
6898 static int wpa_driver_nl80211_associate(
6899 void *priv, struct wpa_driver_associate_params *params)
6901 struct i802_bss *bss = priv;
6902 struct wpa_driver_nl80211_data *drv = bss->drv;
6906 if (params->mode == IEEE80211_MODE_AP)
6907 return wpa_driver_nl80211_ap(drv, params);
6909 if (params->mode == IEEE80211_MODE_IBSS)
6910 return wpa_driver_nl80211_ibss(drv, params);
6912 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) {
6913 enum nl80211_iftype nlmode = params->p2p ?
6914 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
6916 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0)
6918 return wpa_driver_nl80211_connect(drv, params);
6921 drv->associated = 0;
6923 msg = nlmsg_alloc();
6927 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)",
6929 nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE);
6931 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6932 if (params->bssid) {
6933 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
6934 MAC2STR(params->bssid));
6935 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
6938 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
6939 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
6940 drv->assoc_freq = params->freq;
6942 drv->assoc_freq = 0;
6943 if (params->bg_scan_period >= 0) {
6944 wpa_printf(MSG_DEBUG, " * bg scan period=%d",
6945 params->bg_scan_period);
6946 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD,
6947 params->bg_scan_period);
6950 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
6951 params->ssid, params->ssid_len);
6952 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
6954 if (params->ssid_len > sizeof(drv->ssid))
6955 goto nla_put_failure;
6956 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
6957 drv->ssid_len = params->ssid_len;
6959 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
6961 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
6964 if (params->pairwise_suite != CIPHER_NONE) {
6967 switch (params->pairwise_suite) {
6969 cipher = WLAN_CIPHER_SUITE_WEP40;
6972 cipher = WLAN_CIPHER_SUITE_WEP104;
6975 cipher = WLAN_CIPHER_SUITE_CCMP;
6978 cipher = WLAN_CIPHER_SUITE_GCMP;
6982 cipher = WLAN_CIPHER_SUITE_TKIP;
6985 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher);
6986 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
6989 if (params->group_suite != CIPHER_NONE) {
6992 switch (params->group_suite) {
6994 cipher = WLAN_CIPHER_SUITE_WEP40;
6997 cipher = WLAN_CIPHER_SUITE_WEP104;
7000 cipher = WLAN_CIPHER_SUITE_CCMP;
7003 cipher = WLAN_CIPHER_SUITE_GCMP;
7007 cipher = WLAN_CIPHER_SUITE_TKIP;
7010 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher);
7011 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
7014 #ifdef CONFIG_IEEE80211W
7015 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED)
7016 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED);
7017 #endif /* CONFIG_IEEE80211W */
7019 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
7021 if (params->prev_bssid) {
7022 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR,
7023 MAC2STR(params->prev_bssid));
7024 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN,
7025 params->prev_bssid);
7028 if (params->disable_ht)
7029 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT);
7031 if (params->htcaps && params->htcaps_mask) {
7032 int sz = sizeof(struct ieee80211_ht_capabilities);
7033 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps);
7034 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz,
7035 params->htcaps_mask);
7039 wpa_printf(MSG_DEBUG, " * P2P group");
7041 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7044 wpa_dbg(drv->ctx, MSG_DEBUG,
7045 "nl80211: MLME command failed (assoc): ret=%d (%s)",
7046 ret, strerror(-ret));
7047 nl80211_dump_scan(drv);
7048 goto nla_put_failure;
7051 wpa_printf(MSG_DEBUG, "nl80211: Association request send "
7060 static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv,
7061 int ifindex, enum nl80211_iftype mode)
7066 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)",
7067 ifindex, mode, nl80211_iftype_str(mode));
7069 msg = nlmsg_alloc();
7073 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE);
7074 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
7075 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode);
7077 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7083 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:"
7084 " %d (%s)", ifindex, mode, ret, strerror(-ret));
7089 static int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
7090 enum nl80211_iftype nlmode)
7092 struct wpa_driver_nl80211_data *drv = bss->drv;
7095 int was_ap = is_ap_interface(drv->nlmode);
7098 res = nl80211_set_mode(drv, drv->ifindex, nlmode);
7100 drv->nlmode = nlmode;
7108 if (nlmode == drv->nlmode) {
7109 wpa_printf(MSG_DEBUG, "nl80211: Interface already in "
7110 "requested mode - ignore error");
7112 goto done; /* Already in the requested mode */
7115 /* mac80211 doesn't allow mode changes while the device is up, so
7116 * take the device down, try to set the mode again, and bring the
7119 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting "
7121 for (i = 0; i < 10; i++) {
7122 res = linux_set_iface_flags(drv->global->ioctl_sock,
7124 if (res == -EACCES || res == -ENODEV)
7127 /* Try to set the mode again while the interface is
7129 ret = nl80211_set_mode(drv, drv->ifindex, nlmode);
7132 res = linux_set_iface_flags(drv->global->ioctl_sock,
7136 else if (ret != -EBUSY)
7139 wpa_printf(MSG_DEBUG, "nl80211: Failed to set "
7141 os_sleep(0, 100000);
7145 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while "
7146 "interface is down");
7147 drv->nlmode = nlmode;
7148 drv->ignore_if_down_event = 1;
7153 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d "
7154 "from %d failed", nlmode, drv->nlmode);
7158 if (is_p2p_interface(nlmode))
7159 nl80211_disable_11b_rates(drv, drv->ifindex, 1);
7160 else if (drv->disabled_11b_rates)
7161 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
7163 if (is_ap_interface(nlmode)) {
7164 nl80211_mgmt_unsubscribe(bss, "start AP");
7165 /* Setup additional AP mode functionality if needed */
7166 if (nl80211_setup_ap(bss))
7168 } else if (was_ap) {
7169 /* Remove additional AP mode functionality */
7170 nl80211_teardown_ap(bss);
7172 nl80211_mgmt_unsubscribe(bss, "mode change");
7175 if (!bss->in_deinit && !is_ap_interface(nlmode) &&
7176 nl80211_mgmt_subscribe_non_ap(bss) < 0)
7177 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action "
7178 "frame processing - ignore for now");
7184 static int wpa_driver_nl80211_get_capa(void *priv,
7185 struct wpa_driver_capa *capa)
7187 struct i802_bss *bss = priv;
7188 struct wpa_driver_nl80211_data *drv = bss->drv;
7189 if (!drv->has_capability)
7191 os_memcpy(capa, &drv->capa, sizeof(*capa));
7196 static int wpa_driver_nl80211_set_operstate(void *priv, int state)
7198 struct i802_bss *bss = priv;
7199 struct wpa_driver_nl80211_data *drv = bss->drv;
7201 wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)",
7202 __func__, drv->operstate, state, state ? "UP" : "DORMANT");
7203 drv->operstate = state;
7204 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1,
7205 state ? IF_OPER_UP : IF_OPER_DORMANT);
7209 static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized)
7211 struct i802_bss *bss = priv;
7212 struct wpa_driver_nl80211_data *drv = bss->drv;
7214 struct nl80211_sta_flag_update upd;
7216 msg = nlmsg_alloc();
7220 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
7222 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
7223 if_nametoindex(bss->ifname));
7224 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
7226 os_memset(&upd, 0, sizeof(upd));
7227 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED);
7229 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED);
7230 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
7232 return send_and_recv_msgs(drv, msg, NULL, NULL);
7239 /* Set kernel driver on given frequency (MHz) */
7240 static int i802_set_freq(void *priv, struct hostapd_freq_params *freq)
7242 struct i802_bss *bss = priv;
7243 return wpa_driver_nl80211_set_freq(bss, freq->freq, freq->ht_enabled,
7244 freq->sec_channel_offset);
7248 #if defined(HOSTAPD) || defined(CONFIG_AP)
7250 static inline int min_int(int a, int b)
7258 static int get_key_handler(struct nl_msg *msg, void *arg)
7260 struct nlattr *tb[NL80211_ATTR_MAX + 1];
7261 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
7263 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
7264 genlmsg_attrlen(gnlh, 0), NULL);
7267 * TODO: validate the key index and mac address!
7268 * Otherwise, there's a race condition as soon as
7269 * the kernel starts sending key notifications.
7272 if (tb[NL80211_ATTR_KEY_SEQ])
7273 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]),
7274 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6));
7279 static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
7282 struct i802_bss *bss = priv;
7283 struct wpa_driver_nl80211_data *drv = bss->drv;
7286 msg = nlmsg_alloc();
7290 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY);
7293 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7294 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
7295 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
7299 return send_and_recv_msgs(drv, msg, get_key_handler, seq);
7306 static int i802_set_rts(void *priv, int rts)
7308 struct i802_bss *bss = priv;
7309 struct wpa_driver_nl80211_data *drv = bss->drv;
7314 msg = nlmsg_alloc();
7323 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
7324 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
7325 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val);
7327 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7333 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: "
7334 "%d (%s)", rts, ret, strerror(-ret));
7339 static int i802_set_frag(void *priv, int frag)
7341 struct i802_bss *bss = priv;
7342 struct wpa_driver_nl80211_data *drv = bss->drv;
7347 msg = nlmsg_alloc();
7356 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
7357 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
7358 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val);
7360 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7366 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold "
7367 "%d: %d (%s)", frag, ret, strerror(-ret));
7372 static int i802_flush(void *priv)
7374 struct i802_bss *bss = priv;
7375 struct wpa_driver_nl80211_data *drv = bss->drv;
7379 msg = nlmsg_alloc();
7383 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION);
7386 * XXX: FIX! this needs to flush all VLANs too
7388 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
7389 if_nametoindex(bss->ifname));
7391 res = send_and_recv_msgs(drv, msg, NULL, NULL);
7393 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d "
7394 "(%s)", res, strerror(-res));
7402 #endif /* HOSTAPD || CONFIG_AP */
7405 static int get_sta_handler(struct nl_msg *msg, void *arg)
7407 struct nlattr *tb[NL80211_ATTR_MAX + 1];
7408 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
7409 struct hostap_sta_driver_data *data = arg;
7410 struct nlattr *stats[NL80211_STA_INFO_MAX + 1];
7411 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
7412 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
7413 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
7414 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
7415 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
7416 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
7417 [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 },
7420 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
7421 genlmsg_attrlen(gnlh, 0), NULL);
7424 * TODO: validate the interface and mac address!
7425 * Otherwise, there's a race condition as soon as
7426 * the kernel starts sending station notifications.
7429 if (!tb[NL80211_ATTR_STA_INFO]) {
7430 wpa_printf(MSG_DEBUG, "sta stats missing!");
7433 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX,
7434 tb[NL80211_ATTR_STA_INFO],
7436 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!");
7440 if (stats[NL80211_STA_INFO_INACTIVE_TIME])
7441 data->inactive_msec =
7442 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]);
7443 if (stats[NL80211_STA_INFO_RX_BYTES])
7444 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]);
7445 if (stats[NL80211_STA_INFO_TX_BYTES])
7446 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]);
7447 if (stats[NL80211_STA_INFO_RX_PACKETS])
7449 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]);
7450 if (stats[NL80211_STA_INFO_TX_PACKETS])
7452 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]);
7453 if (stats[NL80211_STA_INFO_TX_FAILED])
7454 data->tx_retry_failed =
7455 nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]);
7460 static int i802_read_sta_data(void *priv, struct hostap_sta_driver_data *data,
7463 struct i802_bss *bss = priv;
7464 struct wpa_driver_nl80211_data *drv = bss->drv;
7467 os_memset(data, 0, sizeof(*data));
7468 msg = nlmsg_alloc();
7472 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION);
7474 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7475 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
7477 return send_and_recv_msgs(drv, msg, get_sta_handler, data);
7484 #if defined(HOSTAPD) || defined(CONFIG_AP)
7486 static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
7487 int cw_min, int cw_max, int burst_time)
7489 struct i802_bss *bss = priv;
7490 struct wpa_driver_nl80211_data *drv = bss->drv;
7492 struct nlattr *txq, *params;
7494 msg = nlmsg_alloc();
7498 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
7500 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
7502 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS);
7504 goto nla_put_failure;
7506 /* We are only sending parameters for a single TXQ at a time */
7507 params = nla_nest_start(msg, 1);
7509 goto nla_put_failure;
7513 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO);
7516 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI);
7519 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE);
7522 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK);
7525 /* Burst time is configured in units of 0.1 msec and TXOP parameter in
7526 * 32 usec, so need to convert the value here. */
7527 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32);
7528 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min);
7529 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max);
7530 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs);
7532 nla_nest_end(msg, params);
7534 nla_nest_end(msg, txq);
7536 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
7545 static int i802_set_sta_vlan(void *priv, const u8 *addr,
7546 const char *ifname, int vlan_id)
7548 struct i802_bss *bss = priv;
7549 struct wpa_driver_nl80211_data *drv = bss->drv;
7553 msg = nlmsg_alloc();
7557 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
7559 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
7560 if_nametoindex(bss->ifname));
7561 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7562 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN,
7563 if_nametoindex(ifname));
7565 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7568 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr="
7569 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)",
7570 MAC2STR(addr), ifname, vlan_id, ret,
7579 static int i802_get_inact_sec(void *priv, const u8 *addr)
7581 struct hostap_sta_driver_data data;
7584 data.inactive_msec = (unsigned long) -1;
7585 ret = i802_read_sta_data(priv, &data, addr);
7586 if (ret || data.inactive_msec == (unsigned long) -1)
7588 return data.inactive_msec / 1000;
7592 static int i802_sta_clear_stats(void *priv, const u8 *addr)
7601 static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
7604 struct i802_bss *bss = priv;
7605 struct wpa_driver_nl80211_data *drv = bss->drv;
7606 struct ieee80211_mgmt mgmt;
7608 if (drv->device_ap_sme)
7609 return wpa_driver_nl80211_sta_remove(bss, addr);
7611 memset(&mgmt, 0, sizeof(mgmt));
7612 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
7613 WLAN_FC_STYPE_DEAUTH);
7614 memcpy(mgmt.da, addr, ETH_ALEN);
7615 memcpy(mgmt.sa, own_addr, ETH_ALEN);
7616 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
7617 mgmt.u.deauth.reason_code = host_to_le16(reason);
7618 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
7620 sizeof(mgmt.u.deauth), 0);
7624 static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
7627 struct i802_bss *bss = priv;
7628 struct wpa_driver_nl80211_data *drv = bss->drv;
7629 struct ieee80211_mgmt mgmt;
7631 if (drv->device_ap_sme)
7632 return wpa_driver_nl80211_sta_remove(bss, addr);
7634 memset(&mgmt, 0, sizeof(mgmt));
7635 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
7636 WLAN_FC_STYPE_DISASSOC);
7637 memcpy(mgmt.da, addr, ETH_ALEN);
7638 memcpy(mgmt.sa, own_addr, ETH_ALEN);
7639 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
7640 mgmt.u.disassoc.reason_code = host_to_le16(reason);
7641 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
7643 sizeof(mgmt.u.disassoc), 0);
7646 #endif /* HOSTAPD || CONFIG_AP */
7650 static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
7655 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d",
7657 for (i = 0; i < drv->num_if_indices; i++) {
7658 if (drv->if_indices[i] == 0) {
7659 drv->if_indices[i] = ifidx;
7664 if (drv->if_indices != drv->default_if_indices)
7665 old = drv->if_indices;
7669 drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1,
7671 if (!drv->if_indices) {
7673 drv->if_indices = drv->default_if_indices;
7675 drv->if_indices = old;
7676 wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
7678 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
7681 os_memcpy(drv->if_indices, drv->default_if_indices,
7682 sizeof(drv->default_if_indices));
7683 drv->if_indices[drv->num_if_indices] = ifidx;
7684 drv->num_if_indices++;
7688 static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
7692 for (i = 0; i < drv->num_if_indices; i++) {
7693 if (drv->if_indices[i] == ifidx) {
7694 drv->if_indices[i] = 0;
7701 static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
7705 for (i = 0; i < drv->num_if_indices; i++)
7706 if (drv->if_indices[i] == ifidx)
7713 static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val,
7714 const char *bridge_ifname)
7716 struct i802_bss *bss = priv;
7717 struct wpa_driver_nl80211_data *drv = bss->drv;
7718 char name[IFNAMSIZ + 1];
7720 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid);
7721 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR
7722 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name);
7724 if (!if_nametoindex(name)) {
7725 if (nl80211_create_iface(drv, name,
7726 NL80211_IFTYPE_AP_VLAN,
7729 if (bridge_ifname &&
7730 linux_br_add_if(drv->global->ioctl_sock,
7731 bridge_ifname, name) < 0)
7734 if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) {
7735 wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA "
7736 "interface %s up", name);
7738 return i802_set_sta_vlan(priv, addr, name, 0);
7741 linux_br_del_if(drv->global->ioctl_sock, bridge_ifname,
7744 i802_set_sta_vlan(priv, addr, bss->ifname, 0);
7745 return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN,
7751 static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
7753 struct wpa_driver_nl80211_data *drv = eloop_ctx;
7754 struct sockaddr_ll lladdr;
7755 unsigned char buf[3000];
7757 socklen_t fromlen = sizeof(lladdr);
7759 len = recvfrom(sock, buf, sizeof(buf), 0,
7760 (struct sockaddr *)&lladdr, &fromlen);
7766 if (have_ifidx(drv, lladdr.sll_ifindex))
7767 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len);
7771 static int i802_check_bridge(struct wpa_driver_nl80211_data *drv,
7772 struct i802_bss *bss,
7773 const char *brname, const char *ifname)
7776 char in_br[IFNAMSIZ];
7778 os_strlcpy(bss->brname, brname, IFNAMSIZ);
7779 ifindex = if_nametoindex(brname);
7782 * Bridge was configured, but the bridge device does
7783 * not exist. Try to add it now.
7785 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) {
7786 wpa_printf(MSG_ERROR, "nl80211: Failed to add the "
7787 "bridge interface %s: %s",
7788 brname, strerror(errno));
7791 bss->added_bridge = 1;
7792 add_ifidx(drv, if_nametoindex(brname));
7795 if (linux_br_get(in_br, ifname) == 0) {
7796 if (os_strcmp(in_br, brname) == 0)
7797 return 0; /* already in the bridge */
7799 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from "
7800 "bridge %s", ifname, in_br);
7801 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) <
7803 wpa_printf(MSG_ERROR, "nl80211: Failed to "
7804 "remove interface %s from bridge "
7806 ifname, brname, strerror(errno));
7811 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s",
7813 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) {
7814 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s "
7815 "into bridge %s: %s",
7816 ifname, brname, strerror(errno));
7819 bss->added_if_into_bridge = 1;
7825 static void *i802_init(struct hostapd_data *hapd,
7826 struct wpa_init_params *params)
7828 struct wpa_driver_nl80211_data *drv;
7829 struct i802_bss *bss;
7831 char brname[IFNAMSIZ];
7832 int ifindex, br_ifindex;
7835 bss = wpa_driver_nl80211_init(hapd, params->ifname,
7836 params->global_priv);
7841 drv->nlmode = NL80211_IFTYPE_AP;
7842 drv->eapol_sock = -1;
7844 if (linux_br_get(brname, params->ifname) == 0) {
7845 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s",
7846 params->ifname, brname);
7847 br_ifindex = if_nametoindex(brname);
7853 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
7854 drv->if_indices = drv->default_if_indices;
7855 for (i = 0; i < params->num_bridge; i++) {
7856 if (params->bridge[i]) {
7857 ifindex = if_nametoindex(params->bridge[i]);
7859 add_ifidx(drv, ifindex);
7860 if (ifindex == br_ifindex)
7864 if (!br_added && br_ifindex &&
7865 (params->num_bridge == 0 || !params->bridge[0]))
7866 add_ifidx(drv, br_ifindex);
7868 /* start listening for EAPOL on the default AP interface */
7869 add_ifidx(drv, drv->ifindex);
7871 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0))
7874 if (params->bssid) {
7875 if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
7880 if (wpa_driver_nl80211_set_mode(bss, drv->nlmode)) {
7881 wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s "
7882 "into AP mode", bss->ifname);
7886 if (params->num_bridge && params->bridge[0] &&
7887 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0)
7890 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1))
7893 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE));
7894 if (drv->eapol_sock < 0) {
7895 perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)");
7899 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL))
7901 printf("Could not register read socket for eapol\n");
7905 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
7909 memcpy(bss->addr, params->own_addr, ETH_ALEN);
7914 wpa_driver_nl80211_deinit(bss);
7919 static void i802_deinit(void *priv)
7921 wpa_driver_nl80211_deinit(priv);
7924 #endif /* HOSTAPD */
7927 static enum nl80211_iftype wpa_driver_nl80211_if_type(
7928 enum wpa_driver_if_type type)
7931 case WPA_IF_STATION:
7932 return NL80211_IFTYPE_STATION;
7933 case WPA_IF_P2P_CLIENT:
7934 case WPA_IF_P2P_GROUP:
7935 return NL80211_IFTYPE_P2P_CLIENT;
7936 case WPA_IF_AP_VLAN:
7937 return NL80211_IFTYPE_AP_VLAN;
7939 return NL80211_IFTYPE_AP;
7941 return NL80211_IFTYPE_P2P_GO;
7949 static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr)
7951 struct wpa_driver_nl80211_data *drv;
7952 dl_list_for_each(drv, &global->interfaces,
7953 struct wpa_driver_nl80211_data, list) {
7954 if (os_memcmp(addr, drv->first_bss.addr, ETH_ALEN) == 0)
7961 static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv,
7969 os_memcpy(new_addr, drv->first_bss.addr, ETH_ALEN);
7970 for (idx = 0; idx < 64; idx++) {
7971 new_addr[0] = drv->first_bss.addr[0] | 0x02;
7972 new_addr[0] ^= idx << 2;
7973 if (!nl80211_addr_in_use(drv->global, new_addr))
7979 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address "
7980 MACSTR, MAC2STR(new_addr));
7985 #endif /* CONFIG_P2P */
7988 static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type,
7989 const char *ifname, const u8 *addr,
7990 void *bss_ctx, void **drv_priv,
7991 char *force_ifname, u8 *if_addr,
7994 struct i802_bss *bss = priv;
7995 struct wpa_driver_nl80211_data *drv = bss->drv;
7998 struct i802_bss *new_bss = NULL;
8000 if (type == WPA_IF_AP_BSS) {
8001 new_bss = os_zalloc(sizeof(*new_bss));
8002 if (new_bss == NULL)
8005 #endif /* HOSTAPD */
8008 os_memcpy(if_addr, addr, ETH_ALEN);
8009 ifidx = nl80211_create_iface(drv, ifname,
8010 wpa_driver_nl80211_if_type(type), addr,
8015 #endif /* HOSTAPD */
8020 linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
8022 nl80211_remove_iface(drv, ifidx);
8028 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP ||
8029 type == WPA_IF_P2P_GO)) {
8030 /* Enforce unique P2P Interface Address */
8031 u8 new_addr[ETH_ALEN], own_addr[ETH_ALEN];
8033 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
8035 linux_get_ifhwaddr(drv->global->ioctl_sock, ifname,
8037 nl80211_remove_iface(drv, ifidx);
8040 if (os_memcmp(own_addr, new_addr, ETH_ALEN) == 0) {
8041 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address "
8042 "for P2P group interface");
8043 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) {
8044 nl80211_remove_iface(drv, ifidx);
8047 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname,
8049 nl80211_remove_iface(drv, ifidx);
8053 os_memcpy(if_addr, new_addr, ETH_ALEN);
8055 #endif /* CONFIG_P2P */
8059 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) {
8060 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new "
8061 "interface %s to a bridge %s", ifname, bridge);
8062 nl80211_remove_iface(drv, ifidx);
8067 if (type == WPA_IF_AP_BSS) {
8068 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1))
8070 nl80211_remove_iface(drv, ifidx);
8074 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ);
8075 os_memcpy(new_bss->addr, if_addr, ETH_ALEN);
8076 new_bss->ifindex = ifidx;
8078 new_bss->next = drv->first_bss.next;
8079 new_bss->freq = drv->first_bss.freq;
8080 drv->first_bss.next = new_bss;
8082 *drv_priv = new_bss;
8083 nl80211_init_bss(new_bss);
8085 /* Subscribe management frames for this WPA_IF_AP_BSS */
8086 if (nl80211_setup_ap(new_bss))
8089 #endif /* HOSTAPD */
8092 drv->global->if_add_ifindex = ifidx;
8098 static int wpa_driver_nl80211_if_remove(void *priv,
8099 enum wpa_driver_if_type type,
8102 struct i802_bss *bss = priv;
8103 struct wpa_driver_nl80211_data *drv = bss->drv;
8104 int ifindex = if_nametoindex(ifname);
8106 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d",
8107 __func__, type, ifname, ifindex);
8111 nl80211_remove_iface(drv, ifindex);
8114 if (type != WPA_IF_AP_BSS)
8117 if (bss->added_if_into_bridge) {
8118 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname,
8120 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
8121 "interface %s from bridge %s: %s",
8122 bss->ifname, bss->brname, strerror(errno));
8124 if (bss->added_bridge) {
8125 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0)
8126 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
8128 bss->brname, strerror(errno));
8131 if (bss != &drv->first_bss) {
8132 struct i802_bss *tbss;
8134 for (tbss = &drv->first_bss; tbss; tbss = tbss->next) {
8135 if (tbss->next == bss) {
8136 tbss->next = bss->next;
8137 /* Unsubscribe management frames */
8138 nl80211_teardown_ap(bss);
8139 nl80211_destroy_bss(bss);
8146 wpa_printf(MSG_INFO, "nl80211: %s - could not find "
8147 "BSS %p in the list", __func__, bss);
8149 #endif /* HOSTAPD */
8155 static int cookie_handler(struct nl_msg *msg, void *arg)
8157 struct nlattr *tb[NL80211_ATTR_MAX + 1];
8158 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
8160 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
8161 genlmsg_attrlen(gnlh, 0), NULL);
8162 if (tb[NL80211_ATTR_COOKIE])
8163 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
8168 static int nl80211_send_frame_cmd(struct i802_bss *bss,
8169 unsigned int freq, unsigned int wait,
8170 const u8 *buf, size_t buf_len,
8171 u64 *cookie_out, int no_cck, int no_ack,
8174 struct wpa_driver_nl80211_data *drv = bss->drv;
8179 msg = nlmsg_alloc();
8183 wpa_printf(MSG_DEBUG, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d "
8184 "no_ack=%d offchanok=%d",
8185 freq, wait, no_cck, no_ack, offchanok);
8186 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME);
8188 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
8189 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
8191 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait);
8192 if (offchanok && (drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX))
8193 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
8195 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE);
8197 NLA_PUT_FLAG(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK);
8199 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf);
8202 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
8205 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d "
8206 "(%s) (freq=%u wait=%u)", ret, strerror(-ret),
8208 goto nla_put_failure;
8210 wpa_printf(MSG_DEBUG, "nl80211: Frame TX command accepted%s; "
8211 "cookie 0x%llx", no_ack ? " (no ACK)" : "",
8212 (long long unsigned int) cookie);
8215 *cookie_out = no_ack ? (u64) -1 : cookie;
8223 static int wpa_driver_nl80211_send_action(void *priv, unsigned int freq,
8224 unsigned int wait_time,
8225 const u8 *dst, const u8 *src,
8227 const u8 *data, size_t data_len,
8230 struct i802_bss *bss = priv;
8231 struct wpa_driver_nl80211_data *drv = bss->drv;
8234 struct ieee80211_hdr *hdr;
8236 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, "
8237 "freq=%u MHz wait=%d ms no_cck=%d)",
8238 drv->ifindex, freq, wait_time, no_cck);
8240 buf = os_zalloc(24 + data_len);
8243 os_memcpy(buf + 24, data, data_len);
8244 hdr = (struct ieee80211_hdr *) buf;
8245 hdr->frame_control =
8246 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION);
8247 os_memcpy(hdr->addr1, dst, ETH_ALEN);
8248 os_memcpy(hdr->addr2, src, ETH_ALEN);
8249 os_memcpy(hdr->addr3, bssid, ETH_ALEN);
8251 if (is_ap_interface(drv->nlmode))
8252 ret = wpa_driver_nl80211_send_mlme_freq(priv, buf,
8257 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf,
8259 &drv->send_action_cookie,
8267 static void wpa_driver_nl80211_send_action_cancel_wait(void *priv)
8269 struct i802_bss *bss = priv;
8270 struct wpa_driver_nl80211_data *drv = bss->drv;
8274 msg = nlmsg_alloc();
8278 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL);
8280 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8281 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie);
8283 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8286 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d "
8287 "(%s)", ret, strerror(-ret));
8294 static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq,
8295 unsigned int duration)
8297 struct i802_bss *bss = priv;
8298 struct wpa_driver_nl80211_data *drv = bss->drv;
8303 msg = nlmsg_alloc();
8307 nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL);
8309 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8310 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
8311 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
8314 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
8317 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie "
8318 "0x%llx for freq=%u MHz duration=%u",
8319 (long long unsigned int) cookie, freq, duration);
8320 drv->remain_on_chan_cookie = cookie;
8321 drv->pending_remain_on_chan = 1;
8324 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel "
8325 "(freq=%d duration=%u): %d (%s)",
8326 freq, duration, ret, strerror(-ret));
8333 static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv)
8335 struct i802_bss *bss = priv;
8336 struct wpa_driver_nl80211_data *drv = bss->drv;
8340 if (!drv->pending_remain_on_chan) {
8341 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel "
8346 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie "
8348 (long long unsigned int) drv->remain_on_chan_cookie);
8350 msg = nlmsg_alloc();
8354 nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL);
8356 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8357 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie);
8359 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8363 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: "
8364 "%d (%s)", ret, strerror(-ret));
8371 static int wpa_driver_nl80211_probe_req_report(void *priv, int report)
8373 struct i802_bss *bss = priv;
8374 struct wpa_driver_nl80211_data *drv = bss->drv;
8377 if (bss->nl_preq && drv->device_ap_sme &&
8378 is_ap_interface(drv->nlmode)) {
8380 * Do not disable Probe Request reporting that was
8381 * enabled in nl80211_setup_ap().
8383 wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of "
8384 "Probe Request reporting nl_preq=%p while "
8385 "in AP mode", bss->nl_preq);
8386 } else if (bss->nl_preq) {
8387 wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request "
8388 "reporting nl_preq=%p", bss->nl_preq);
8389 eloop_unregister_read_sock(
8390 nl_socket_get_fd(bss->nl_preq));
8391 nl_destroy_handles(&bss->nl_preq);
8397 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting "
8398 "already on! nl_preq=%p", bss->nl_preq);
8402 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq");
8403 if (bss->nl_preq == NULL)
8405 wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request "
8406 "reporting nl_preq=%p", bss->nl_preq);
8408 if (nl80211_register_frame(bss, bss->nl_preq,
8409 (WLAN_FC_TYPE_MGMT << 2) |
8410 (WLAN_FC_STYPE_PROBE_REQ << 4),
8414 eloop_register_read_sock(nl_socket_get_fd(bss->nl_preq),
8415 wpa_driver_nl80211_event_receive, bss->nl_cb,
8421 nl_destroy_handles(&bss->nl_preq);
8426 static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
8427 int ifindex, int disabled)
8430 struct nlattr *bands, *band;
8433 msg = nlmsg_alloc();
8437 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK);
8438 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
8440 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES);
8442 goto nla_put_failure;
8445 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything
8446 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS
8447 * rates. All 5 GHz rates are left enabled.
8449 band = nla_nest_start(msg, NL80211_BAND_2GHZ);
8451 goto nla_put_failure;
8453 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8,
8454 "\x0c\x12\x18\x24\x30\x48\x60\x6c");
8456 nla_nest_end(msg, band);
8458 nla_nest_end(msg, bands);
8460 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8463 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d "
8464 "(%s)", ret, strerror(-ret));
8466 drv->disabled_11b_rates = disabled;
8476 static int wpa_driver_nl80211_deinit_ap(void *priv)
8478 struct i802_bss *bss = priv;
8479 struct wpa_driver_nl80211_data *drv = bss->drv;
8480 if (!is_ap_interface(drv->nlmode))
8482 wpa_driver_nl80211_del_beacon(drv);
8483 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION);
8487 static int wpa_driver_nl80211_deinit_p2p_cli(void *priv)
8489 struct i802_bss *bss = priv;
8490 struct wpa_driver_nl80211_data *drv = bss->drv;
8491 if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT)
8493 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION);
8497 static void wpa_driver_nl80211_resume(void *priv)
8499 struct i802_bss *bss = priv;
8500 struct wpa_driver_nl80211_data *drv = bss->drv;
8501 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) {
8502 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on "
8508 static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap,
8509 const u8 *ies, size_t ies_len)
8511 struct i802_bss *bss = priv;
8512 struct wpa_driver_nl80211_data *drv = bss->drv;
8516 const u8 *own_addr = bss->addr;
8519 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action "
8520 "action %d", action);
8525 * Action frame payload:
8526 * Category[1] = 6 (Fast BSS Transition)
8527 * Action[1] = 1 (Fast BSS Transition Request)
8533 data_len = 2 + 2 * ETH_ALEN + ies_len;
8534 data = os_malloc(data_len);
8538 *pos++ = 0x06; /* FT Action category */
8540 os_memcpy(pos, own_addr, ETH_ALEN);
8542 os_memcpy(pos, target_ap, ETH_ALEN);
8544 os_memcpy(pos, ies, ies_len);
8546 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0,
8547 drv->bssid, own_addr, drv->bssid,
8555 static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis)
8557 struct i802_bss *bss = priv;
8558 struct wpa_driver_nl80211_data *drv = bss->drv;
8559 struct nl_msg *msg, *cqm = NULL;
8562 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d "
8563 "hysteresis=%d", threshold, hysteresis);
8565 msg = nlmsg_alloc();
8569 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM);
8571 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
8573 cqm = nlmsg_alloc();
8575 goto nla_put_failure;
8577 NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_THOLD, threshold);
8578 NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_HYST, hysteresis);
8579 if (nla_put_nested(msg, NL80211_ATTR_CQM, cqm) < 0)
8580 goto nla_put_failure;
8582 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8592 static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si)
8594 struct i802_bss *bss = priv;
8595 struct wpa_driver_nl80211_data *drv = bss->drv;
8598 os_memset(si, 0, sizeof(*si));
8599 res = nl80211_get_link_signal(drv, si);
8603 return nl80211_get_link_noise(drv, si);
8607 static int wpa_driver_nl80211_shared_freq(void *priv)
8609 struct i802_bss *bss = priv;
8610 struct wpa_driver_nl80211_data *drv = bss->drv;
8611 struct wpa_driver_nl80211_data *driver;
8615 * If the same PHY is in connected state with some other interface,
8616 * then retrieve the assoc freq.
8618 wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s",
8621 dl_list_for_each(driver, &drv->global->interfaces,
8622 struct wpa_driver_nl80211_data, list) {
8623 if (drv == driver ||
8624 os_strcmp(drv->phyname, driver->phyname) != 0 ||
8625 !driver->associated)
8628 wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s "
8630 driver->phyname, driver->first_bss.ifname,
8631 MAC2STR(driver->first_bss.addr));
8632 if (is_ap_interface(driver->nlmode))
8633 freq = driver->first_bss.freq;
8635 freq = nl80211_get_assoc_freq(driver);
8636 wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d",
8637 drv->phyname, freq);
8641 wpa_printf(MSG_DEBUG, "nl80211: No shared interface for "
8642 "PHY (%s) in associated state", drv->phyname);
8648 static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len,
8651 struct i802_bss *bss = priv;
8652 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0,
8657 static int nl80211_set_param(void *priv, const char *param)
8659 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param);
8664 if (os_strstr(param, "use_p2p_group_interface=1")) {
8665 struct i802_bss *bss = priv;
8666 struct wpa_driver_nl80211_data *drv = bss->drv;
8668 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
8670 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
8671 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
8673 #endif /* CONFIG_P2P */
8679 static void * nl80211_global_init(void)
8681 struct nl80211_global *global;
8682 struct netlink_config *cfg;
8684 global = os_zalloc(sizeof(*global));
8687 global->ioctl_sock = -1;
8688 dl_list_init(&global->interfaces);
8689 global->if_add_ifindex = -1;
8691 cfg = os_zalloc(sizeof(*cfg));
8696 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink;
8697 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink;
8698 global->netlink = netlink_init(cfg);
8699 if (global->netlink == NULL) {
8704 if (wpa_driver_nl80211_init_nl_global(global) < 0)
8707 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
8708 if (global->ioctl_sock < 0) {
8709 perror("socket(PF_INET,SOCK_DGRAM)");
8716 nl80211_global_deinit(global);
8721 static void nl80211_global_deinit(void *priv)
8723 struct nl80211_global *global = priv;
8726 if (!dl_list_empty(&global->interfaces)) {
8727 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at "
8728 "nl80211_global_deinit",
8729 dl_list_len(&global->interfaces));
8732 if (global->netlink)
8733 netlink_deinit(global->netlink);
8735 nl_destroy_handles(&global->nl);
8737 if (global->nl_event) {
8738 eloop_unregister_read_sock(
8739 nl_socket_get_fd(global->nl_event));
8740 nl_destroy_handles(&global->nl_event);
8743 nl_cb_put(global->nl_cb);
8745 if (global->ioctl_sock >= 0)
8746 close(global->ioctl_sock);
8752 static const char * nl80211_get_radio_name(void *priv)
8754 struct i802_bss *bss = priv;
8755 struct wpa_driver_nl80211_data *drv = bss->drv;
8756 return drv->phyname;
8760 static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid,
8765 msg = nlmsg_alloc();
8769 nl80211_cmd(bss->drv, msg, 0, cmd);
8771 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
8773 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid);
8775 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
8777 return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
8784 static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid)
8786 struct i802_bss *bss = priv;
8787 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid));
8788 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid);
8792 static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid)
8794 struct i802_bss *bss = priv;
8795 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR,
8797 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid);
8801 static int nl80211_flush_pmkid(void *priv)
8803 struct i802_bss *bss = priv;
8804 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs");
8805 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL);
8809 static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck,
8810 const u8 *replay_ctr)
8812 struct i802_bss *bss = priv;
8813 struct wpa_driver_nl80211_data *drv = bss->drv;
8814 struct nlattr *replay_nested;
8817 msg = nlmsg_alloc();
8821 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
8823 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
8825 replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
8827 goto nla_put_failure;
8829 NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek);
8830 NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck);
8831 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN,
8834 nla_nest_end(msg, replay_nested);
8836 send_and_recv_msgs(drv, msg, NULL, NULL);
8843 static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr,
8844 const u8 *addr, int qos)
8846 /* send data frame to poll STA and check whether
8847 * this frame is ACKed */
8849 struct ieee80211_hdr hdr;
8851 } STRUCT_PACKED nulldata;
8854 /* Send data frame to poll STA and check whether this frame is ACKed */
8856 os_memset(&nulldata, 0, sizeof(nulldata));
8859 nulldata.hdr.frame_control =
8860 IEEE80211_FC(WLAN_FC_TYPE_DATA,
8861 WLAN_FC_STYPE_QOS_NULL);
8862 size = sizeof(nulldata);
8864 nulldata.hdr.frame_control =
8865 IEEE80211_FC(WLAN_FC_TYPE_DATA,
8866 WLAN_FC_STYPE_NULLFUNC);
8867 size = sizeof(struct ieee80211_hdr);
8870 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS);
8871 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN);
8872 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
8873 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
8875 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0) < 0)
8876 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to "
8880 static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr,
8883 struct i802_bss *bss = priv;
8884 struct wpa_driver_nl80211_data *drv = bss->drv;
8887 if (!drv->poll_command_supported) {
8888 nl80211_send_null_frame(bss, own_addr, addr, qos);
8892 msg = nlmsg_alloc();
8896 nl80211_cmd(drv, msg, 0, NL80211_CMD_PROBE_CLIENT);
8898 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
8899 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
8901 send_and_recv_msgs(drv, msg, NULL, NULL);
8908 static int nl80211_set_power_save(struct i802_bss *bss, int enabled)
8912 msg = nlmsg_alloc();
8916 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_SET_POWER_SAVE);
8917 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
8918 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE,
8919 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED);
8920 return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
8927 static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps,
8930 struct i802_bss *bss = priv;
8932 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d "
8933 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow);
8935 if (opp_ps != -1 || ctwindow != -1)
8936 return -1; /* Not yet supported */
8938 if (legacy_ps == -1)
8940 if (legacy_ps != 0 && legacy_ps != 1)
8941 return -1; /* Not yet supported */
8943 return nl80211_set_power_save(bss, legacy_ps);
8949 static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code,
8950 u8 dialog_token, u16 status_code,
8951 const u8 *buf, size_t len)
8953 struct i802_bss *bss = priv;
8954 struct wpa_driver_nl80211_data *drv = bss->drv;
8957 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
8963 msg = nlmsg_alloc();
8967 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT);
8968 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8969 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
8970 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code);
8971 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token);
8972 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code);
8973 NLA_PUT(msg, NL80211_ATTR_IE, len, buf);
8975 return send_and_recv_msgs(drv, msg, NULL, NULL);
8983 static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer)
8985 struct i802_bss *bss = priv;
8986 struct wpa_driver_nl80211_data *drv = bss->drv;
8988 enum nl80211_tdls_operation nl80211_oper;
8990 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
8994 case TDLS_DISCOVERY_REQ:
8995 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ;
8998 nl80211_oper = NL80211_TDLS_SETUP;
9001 nl80211_oper = NL80211_TDLS_TEARDOWN;
9003 case TDLS_ENABLE_LINK:
9004 nl80211_oper = NL80211_TDLS_ENABLE_LINK;
9006 case TDLS_DISABLE_LINK:
9007 nl80211_oper = NL80211_TDLS_DISABLE_LINK;
9017 msg = nlmsg_alloc();
9021 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER);
9022 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper);
9023 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
9024 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
9026 return send_and_recv_msgs(drv, msg, NULL, NULL);
9033 #endif /* CONFIG TDLS */
9038 typedef struct android_wifi_priv_cmd {
9042 } android_wifi_priv_cmd;
9044 static int drv_errors = 0;
9046 static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv)
9049 if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) {
9051 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED");
9056 static int android_priv_cmd(struct i802_bss *bss, const char *cmd)
9058 struct wpa_driver_nl80211_data *drv = bss->drv;
9060 android_wifi_priv_cmd priv_cmd;
9061 char buf[MAX_DRV_CMD_SIZE];
9064 os_memset(&ifr, 0, sizeof(ifr));
9065 os_memset(&priv_cmd, 0, sizeof(priv_cmd));
9066 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ);
9068 os_memset(buf, 0, sizeof(buf));
9069 os_strlcpy(buf, cmd, sizeof(buf));
9072 priv_cmd.used_len = sizeof(buf);
9073 priv_cmd.total_len = sizeof(buf);
9074 ifr.ifr_data = &priv_cmd;
9076 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr);
9078 wpa_printf(MSG_ERROR, "%s: failed to issue private commands",
9080 wpa_driver_send_hang_msg(drv);
9089 static int android_pno_start(struct i802_bss *bss,
9090 struct wpa_driver_scan_params *params)
9092 struct wpa_driver_nl80211_data *drv = bss->drv;
9094 android_wifi_priv_cmd priv_cmd;
9095 int ret = 0, i = 0, bp;
9096 char buf[WEXT_PNO_MAX_COMMAND_SIZE];
9098 bp = WEXT_PNOSETUP_HEADER_SIZE;
9099 os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp);
9100 buf[bp++] = WEXT_PNO_TLV_PREFIX;
9101 buf[bp++] = WEXT_PNO_TLV_VERSION;
9102 buf[bp++] = WEXT_PNO_TLV_SUBVERSION;
9103 buf[bp++] = WEXT_PNO_TLV_RESERVED;
9105 while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) {
9106 /* Check that there is enough space needed for 1 more SSID, the
9107 * other sections and null termination */
9108 if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN +
9109 WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf))
9111 wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan",
9112 params->ssids[i].ssid,
9113 params->ssids[i].ssid_len);
9114 buf[bp++] = WEXT_PNO_SSID_SECTION;
9115 buf[bp++] = params->ssids[i].ssid_len;
9116 os_memcpy(&buf[bp], params->ssids[i].ssid,
9117 params->ssids[i].ssid_len);
9118 bp += params->ssids[i].ssid_len;
9122 buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION;
9123 os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x",
9124 WEXT_PNO_SCAN_INTERVAL);
9125 bp += WEXT_PNO_SCAN_INTERVAL_LENGTH;
9127 buf[bp++] = WEXT_PNO_REPEAT_SECTION;
9128 os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x",
9130 bp += WEXT_PNO_REPEAT_LENGTH;
9132 buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION;
9133 os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x",
9134 WEXT_PNO_MAX_REPEAT);
9135 bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1;
9137 memset(&ifr, 0, sizeof(ifr));
9138 memset(&priv_cmd, 0, sizeof(priv_cmd));
9139 os_strncpy(ifr.ifr_name, bss->ifname, IFNAMSIZ);
9142 priv_cmd.used_len = bp;
9143 priv_cmd.total_len = bp;
9144 ifr.ifr_data = &priv_cmd;
9146 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr);
9149 wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d",
9151 wpa_driver_send_hang_msg(drv);
9157 return android_priv_cmd(bss, "PNOFORCE 1");
9161 static int android_pno_stop(struct i802_bss *bss)
9163 return android_priv_cmd(bss, "PNOFORCE 0");
9166 #endif /* ANDROID */
9169 const struct wpa_driver_ops wpa_driver_nl80211_ops = {
9171 .desc = "Linux nl80211/cfg80211",
9172 .get_bssid = wpa_driver_nl80211_get_bssid,
9173 .get_ssid = wpa_driver_nl80211_get_ssid,
9174 .set_key = wpa_driver_nl80211_set_key,
9175 .scan2 = wpa_driver_nl80211_scan,
9176 .sched_scan = wpa_driver_nl80211_sched_scan,
9177 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan,
9178 .get_scan_results2 = wpa_driver_nl80211_get_scan_results,
9179 .deauthenticate = wpa_driver_nl80211_deauthenticate,
9180 .disassociate = wpa_driver_nl80211_disassociate,
9181 .authenticate = wpa_driver_nl80211_authenticate,
9182 .associate = wpa_driver_nl80211_associate,
9183 .global_init = nl80211_global_init,
9184 .global_deinit = nl80211_global_deinit,
9185 .init2 = wpa_driver_nl80211_init,
9186 .deinit = wpa_driver_nl80211_deinit,
9187 .get_capa = wpa_driver_nl80211_get_capa,
9188 .set_operstate = wpa_driver_nl80211_set_operstate,
9189 .set_supp_port = wpa_driver_nl80211_set_supp_port,
9190 .set_country = wpa_driver_nl80211_set_country,
9191 .set_ap = wpa_driver_nl80211_set_ap,
9192 .if_add = wpa_driver_nl80211_if_add,
9193 .if_remove = wpa_driver_nl80211_if_remove,
9194 .send_mlme = wpa_driver_nl80211_send_mlme,
9195 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data,
9196 .sta_add = wpa_driver_nl80211_sta_add,
9197 .sta_remove = wpa_driver_nl80211_sta_remove,
9198 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol,
9199 .sta_set_flags = wpa_driver_nl80211_sta_set_flags,
9201 .hapd_init = i802_init,
9202 .hapd_deinit = i802_deinit,
9203 .set_wds_sta = i802_set_wds_sta,
9204 #endif /* HOSTAPD */
9205 #if defined(HOSTAPD) || defined(CONFIG_AP)
9206 .get_seqnum = i802_get_seqnum,
9207 .flush = i802_flush,
9208 .get_inact_sec = i802_get_inact_sec,
9209 .sta_clear_stats = i802_sta_clear_stats,
9210 .set_rts = i802_set_rts,
9211 .set_frag = i802_set_frag,
9212 .set_tx_queue_params = i802_set_tx_queue_params,
9213 .set_sta_vlan = i802_set_sta_vlan,
9214 .sta_deauth = i802_sta_deauth,
9215 .sta_disassoc = i802_sta_disassoc,
9216 #endif /* HOSTAPD || CONFIG_AP */
9217 .read_sta_data = i802_read_sta_data,
9218 .set_freq = i802_set_freq,
9219 .send_action = wpa_driver_nl80211_send_action,
9220 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait,
9221 .remain_on_channel = wpa_driver_nl80211_remain_on_channel,
9222 .cancel_remain_on_channel =
9223 wpa_driver_nl80211_cancel_remain_on_channel,
9224 .probe_req_report = wpa_driver_nl80211_probe_req_report,
9225 .deinit_ap = wpa_driver_nl80211_deinit_ap,
9226 .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli,
9227 .resume = wpa_driver_nl80211_resume,
9228 .send_ft_action = nl80211_send_ft_action,
9229 .signal_monitor = nl80211_signal_monitor,
9230 .signal_poll = nl80211_signal_poll,
9231 .send_frame = nl80211_send_frame,
9232 .shared_freq = wpa_driver_nl80211_shared_freq,
9233 .set_param = nl80211_set_param,
9234 .get_radio_name = nl80211_get_radio_name,
9235 .add_pmkid = nl80211_add_pmkid,
9236 .remove_pmkid = nl80211_remove_pmkid,
9237 .flush_pmkid = nl80211_flush_pmkid,
9238 .set_rekey_info = nl80211_set_rekey_info,
9239 .poll_client = nl80211_poll_client,
9240 .set_p2p_powersave = nl80211_set_p2p_powersave,
9242 .send_tdls_mgmt = nl80211_send_tdls_mgmt,
9243 .tdls_oper = nl80211_tdls_oper,
9244 #endif /* CONFIG_TDLS */