2 * Driver interaction with Linux nl80211/cfg80211
3 * Copyright (c) 2002-2010, Jouni Malinen <j@w1.fi>
4 * Copyright (c) 2003-2004, Instant802 Networks, Inc.
5 * Copyright (c) 2005-2006, Devicescape Software, Inc.
6 * Copyright (c) 2007, Johannes Berg <johannes@sipsolutions.net>
7 * Copyright (c) 2009-2010, Atheros Communications
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
13 * Alternatively, this software may be distributed under the terms of BSD
16 * See README and COPYING for more details.
20 #include <sys/ioctl.h>
22 #include <netlink/genl/genl.h>
23 #include <netlink/genl/family.h>
24 #include <netlink/genl/ctrl.h>
25 #include <netpacket/packet.h>
26 #include <linux/filter.h>
27 #include "nl80211_copy.h"
31 #include "common/ieee802_11_defs.h"
33 #include "linux_ioctl.h"
35 #include "radiotap_iter.h"
39 /* libnl 2.0 compatibility code */
40 #define nl_handle nl_sock
41 #define nl_handle_alloc_cb nl_socket_alloc_cb
42 #define nl_handle_destroy nl_socket_free
43 #endif /* CONFIG_LIBNL20 */
47 #define IFF_LOWER_UP 0x10000 /* driver signals L1 up */
50 #define IFF_DORMANT 0x20000 /* driver signals dormant */
53 #ifndef IF_OPER_DORMANT
54 #define IF_OPER_DORMANT 5
61 struct wpa_driver_nl80211_data
*drv
;
62 struct i802_bss
*next
;
64 char ifname
[IFNAMSIZ
+ 1];
65 unsigned int beacon_set
:1;
68 struct wpa_driver_nl80211_data
{
70 struct netlink_data
*netlink
;
71 int ioctl_sock
; /* socket for ioctl() use */
72 char brname
[IFNAMSIZ
];
75 struct wpa_driver_capa capa
;
80 int scan_complete_events
;
82 struct nl_handle
*nl_handle
;
83 struct nl_handle
*nl_handle_event
;
84 struct nl_cache
*nl_cache
;
85 struct nl_cache
*nl_cache_event
;
87 struct genl_family
*nl80211
;
89 u8 auth_bssid
[ETH_ALEN
];
95 int ap_scan_as_station
;
96 unsigned int assoc_freq
;
100 int probe_req_report
;
101 int disable_11b_rates
;
103 unsigned int pending_remain_on_chan
:1;
104 unsigned int pending_send_action
:1;
105 unsigned int added_bridge
:1;
106 unsigned int added_if_into_bridge
:1;
108 u64 remain_on_chan_cookie
;
109 u64 send_action_cookie
;
111 struct wpa_driver_scan_filter
*filter_ssids
;
112 size_t num_filter_ssids
;
114 struct i802_bss first_bss
;
117 int eapol_sock
; /* socket for EAPOL frames */
119 int default_if_indices
[16];
129 static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx
,
131 static int wpa_driver_nl80211_set_mode(void *priv
, int mode
);
133 wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data
*drv
);
134 static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data
*drv
,
135 const u8
*addr
, int cmd
, u16 reason_code
,
136 int local_state_change
);
137 static void nl80211_remove_monitor_interface(
138 struct wpa_driver_nl80211_data
*drv
);
141 static void add_ifidx(struct wpa_driver_nl80211_data
*drv
, int ifidx
);
142 static void del_ifidx(struct wpa_driver_nl80211_data
*drv
, int ifidx
);
143 static int wpa_driver_nl80211_if_remove(void *priv
,
144 enum wpa_driver_if_type type
,
148 static int i802_set_freq(void *priv
, struct hostapd_freq_params
*freq
);
149 static void wpa_driver_nl80211_probe_req_report_timeout(void *eloop_ctx
,
151 static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data
*drv
,
152 int ifindex
, int disabled
);
156 static int ack_handler(struct nl_msg
*msg
, void *arg
)
163 static int finish_handler(struct nl_msg
*msg
, void *arg
)
170 static int error_handler(struct sockaddr_nl
*nla
, struct nlmsgerr
*err
,
179 static int no_seq_check(struct nl_msg
*msg
, void *arg
)
185 static int send_and_recv(struct wpa_driver_nl80211_data
*drv
,
186 struct nl_handle
*nl_handle
, struct nl_msg
*msg
,
187 int (*valid_handler
)(struct nl_msg
*, void *),
193 cb
= nl_cb_clone(drv
->nl_cb
);
197 err
= nl_send_auto_complete(nl_handle
, msg
);
203 nl_cb_err(cb
, NL_CB_CUSTOM
, error_handler
, &err
);
204 nl_cb_set(cb
, NL_CB_FINISH
, NL_CB_CUSTOM
, finish_handler
, &err
);
205 nl_cb_set(cb
, NL_CB_ACK
, NL_CB_CUSTOM
, ack_handler
, &err
);
208 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
,
209 valid_handler
, valid_data
);
212 nl_recvmsgs(nl_handle
, cb
);
220 static int send_and_recv_msgs(struct wpa_driver_nl80211_data
*drv
,
222 int (*valid_handler
)(struct nl_msg
*, void *),
225 return send_and_recv(drv
, drv
->nl_handle
, msg
, valid_handler
,
236 static int family_handler(struct nl_msg
*msg
, void *arg
)
238 struct family_data
*res
= arg
;
239 struct nlattr
*tb
[CTRL_ATTR_MAX
+ 1];
240 struct genlmsghdr
*gnlh
= nlmsg_data(nlmsg_hdr(msg
));
241 struct nlattr
*mcgrp
;
244 nla_parse(tb
, CTRL_ATTR_MAX
, genlmsg_attrdata(gnlh
, 0),
245 genlmsg_attrlen(gnlh
, 0), NULL
);
246 if (!tb
[CTRL_ATTR_MCAST_GROUPS
])
249 nla_for_each_nested(mcgrp
, tb
[CTRL_ATTR_MCAST_GROUPS
], i
) {
250 struct nlattr
*tb2
[CTRL_ATTR_MCAST_GRP_MAX
+ 1];
251 nla_parse(tb2
, CTRL_ATTR_MCAST_GRP_MAX
, nla_data(mcgrp
),
252 nla_len(mcgrp
), NULL
);
253 if (!tb2
[CTRL_ATTR_MCAST_GRP_NAME
] ||
254 !tb2
[CTRL_ATTR_MCAST_GRP_ID
] ||
255 os_strncmp(nla_data(tb2
[CTRL_ATTR_MCAST_GRP_NAME
]),
257 nla_len(tb2
[CTRL_ATTR_MCAST_GRP_NAME
])) != 0)
259 res
->id
= nla_get_u32(tb2
[CTRL_ATTR_MCAST_GRP_ID
]);
267 static int nl_get_multicast_id(struct wpa_driver_nl80211_data
*drv
,
268 const char *family
, const char *group
)
272 struct family_data res
= { group
, -ENOENT
};
277 genlmsg_put(msg
, 0, 0, genl_ctrl_resolve(drv
->nl_handle
, "nlctrl"),
278 0, 0, CTRL_CMD_GETFAMILY
, 0);
279 NLA_PUT_STRING(msg
, CTRL_ATTR_FAMILY_NAME
, family
);
281 ret
= send_and_recv_msgs(drv
, msg
, family_handler
, &res
);
292 static int wpa_driver_nl80211_get_bssid(void *priv
, u8
*bssid
)
294 struct i802_bss
*bss
= priv
;
295 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
296 if (!drv
->associated
)
298 os_memcpy(bssid
, drv
->bssid
, ETH_ALEN
);
303 static int wpa_driver_nl80211_get_ssid(void *priv
, u8
*ssid
)
305 struct i802_bss
*bss
= priv
;
306 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
307 if (!drv
->associated
)
309 os_memcpy(ssid
, drv
->ssid
, drv
->ssid_len
);
310 return drv
->ssid_len
;
314 static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data
*drv
,
315 char *buf
, size_t len
, int del
)
317 union wpa_event_data event
;
319 os_memset(&event
, 0, sizeof(event
));
320 if (len
> sizeof(event
.interface_status
.ifname
))
321 len
= sizeof(event
.interface_status
.ifname
) - 1;
322 os_memcpy(event
.interface_status
.ifname
, buf
, len
);
323 event
.interface_status
.ievent
= del
? EVENT_INTERFACE_REMOVED
:
324 EVENT_INTERFACE_ADDED
;
326 wpa_printf(MSG_DEBUG
, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s",
328 event
.interface_status
.ifname
,
329 del
? "removed" : "added");
331 if (os_strcmp(drv
->first_bss
.ifname
, event
.interface_status
.ifname
) == 0) {
338 wpa_supplicant_event(drv
->ctx
, EVENT_INTERFACE_STATUS
, &event
);
342 static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data
*drv
,
345 int attrlen
, rta_len
;
349 attr
= (struct rtattr
*) buf
;
351 rta_len
= RTA_ALIGN(sizeof(struct rtattr
));
352 while (RTA_OK(attr
, attrlen
)) {
353 if (attr
->rta_type
== IFLA_IFNAME
) {
354 if (os_strcmp(((char *) attr
) + rta_len
, drv
->first_bss
.ifname
)
360 attr
= RTA_NEXT(attr
, attrlen
);
367 static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data
*drv
,
368 int ifindex
, u8
*buf
, size_t len
)
370 if (drv
->ifindex
== ifindex
)
373 if (drv
->if_removed
&& wpa_driver_nl80211_own_ifname(drv
, buf
, len
)) {
374 drv
->first_bss
.ifindex
= if_nametoindex(drv
->first_bss
.ifname
);
375 wpa_printf(MSG_DEBUG
, "nl80211: Update ifindex for a removed "
377 wpa_driver_nl80211_finish_drv_init(drv
);
385 static void wpa_driver_nl80211_event_rtm_newlink(void *ctx
,
386 struct ifinfomsg
*ifi
,
389 struct wpa_driver_nl80211_data
*drv
= ctx
;
390 int attrlen
, rta_len
;
393 if (!wpa_driver_nl80211_own_ifindex(drv
, ifi
->ifi_index
, buf
, len
)) {
394 wpa_printf(MSG_DEBUG
, "Ignore event for foreign ifindex %d",
399 wpa_printf(MSG_DEBUG
, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x "
401 drv
->operstate
, ifi
->ifi_flags
,
402 (ifi
->ifi_flags
& IFF_UP
) ? "[UP]" : "",
403 (ifi
->ifi_flags
& IFF_RUNNING
) ? "[RUNNING]" : "",
404 (ifi
->ifi_flags
& IFF_LOWER_UP
) ? "[LOWER_UP]" : "",
405 (ifi
->ifi_flags
& IFF_DORMANT
) ? "[DORMANT]" : "");
407 * Some drivers send the association event before the operup event--in
408 * this case, lifting operstate in wpa_driver_nl80211_set_operstate()
409 * fails. This will hit us when wpa_supplicant does not need to do
410 * IEEE 802.1X authentication
412 if (drv
->operstate
== 1 &&
413 (ifi
->ifi_flags
& (IFF_LOWER_UP
| IFF_DORMANT
)) == IFF_LOWER_UP
&&
414 !(ifi
->ifi_flags
& IFF_RUNNING
))
415 netlink_send_oper_ifla(drv
->netlink
, drv
->ifindex
,
419 attr
= (struct rtattr
*) buf
;
420 rta_len
= RTA_ALIGN(sizeof(struct rtattr
));
421 while (RTA_OK(attr
, attrlen
)) {
422 if (attr
->rta_type
== IFLA_IFNAME
) {
423 wpa_driver_nl80211_event_link(
425 ((char *) attr
) + rta_len
,
426 attr
->rta_len
- rta_len
, 0);
428 attr
= RTA_NEXT(attr
, attrlen
);
433 static void wpa_driver_nl80211_event_rtm_dellink(void *ctx
,
434 struct ifinfomsg
*ifi
,
437 struct wpa_driver_nl80211_data
*drv
= ctx
;
438 int attrlen
, rta_len
;
442 attr
= (struct rtattr
*) buf
;
444 rta_len
= RTA_ALIGN(sizeof(struct rtattr
));
445 while (RTA_OK(attr
, attrlen
)) {
446 if (attr
->rta_type
== IFLA_IFNAME
) {
447 wpa_driver_nl80211_event_link(
449 ((char *) attr
) + rta_len
,
450 attr
->rta_len
- rta_len
, 1);
452 attr
= RTA_NEXT(attr
, attrlen
);
457 static void mlme_event_auth(struct wpa_driver_nl80211_data
*drv
,
458 const u8
*frame
, size_t len
)
460 const struct ieee80211_mgmt
*mgmt
;
461 union wpa_event_data event
;
463 mgmt
= (const struct ieee80211_mgmt
*) frame
;
464 if (len
< 24 + sizeof(mgmt
->u
.auth
)) {
465 wpa_printf(MSG_DEBUG
, "nl80211: Too short association event "
470 os_memcpy(drv
->auth_bssid
, mgmt
->sa
, ETH_ALEN
);
471 os_memset(&event
, 0, sizeof(event
));
472 os_memcpy(event
.auth
.peer
, mgmt
->sa
, ETH_ALEN
);
473 event
.auth
.auth_type
= le_to_host16(mgmt
->u
.auth
.auth_alg
);
474 event
.auth
.status_code
= le_to_host16(mgmt
->u
.auth
.status_code
);
475 if (len
> 24 + sizeof(mgmt
->u
.auth
)) {
476 event
.auth
.ies
= mgmt
->u
.auth
.variable
;
477 event
.auth
.ies_len
= len
- 24 - sizeof(mgmt
->u
.auth
);
480 wpa_supplicant_event(drv
->ctx
, EVENT_AUTH
, &event
);
484 static void mlme_event_assoc(struct wpa_driver_nl80211_data
*drv
,
485 const u8
*frame
, size_t len
)
487 const struct ieee80211_mgmt
*mgmt
;
488 union wpa_event_data event
;
491 mgmt
= (const struct ieee80211_mgmt
*) frame
;
492 if (len
< 24 + sizeof(mgmt
->u
.assoc_resp
)) {
493 wpa_printf(MSG_DEBUG
, "nl80211: Too short association event "
498 status
= le_to_host16(mgmt
->u
.assoc_resp
.status_code
);
499 if (status
!= WLAN_STATUS_SUCCESS
) {
500 os_memset(&event
, 0, sizeof(event
));
501 if (len
> 24 + sizeof(mgmt
->u
.assoc_resp
)) {
502 event
.assoc_reject
.resp_ies
=
503 (u8
*) mgmt
->u
.assoc_resp
.variable
;
504 event
.assoc_reject
.resp_ies_len
=
505 len
- 24 - sizeof(mgmt
->u
.assoc_resp
);
507 event
.assoc_reject
.status_code
= status
;
509 wpa_supplicant_event(drv
->ctx
, EVENT_ASSOC_REJECT
, &event
);
514 os_memcpy(drv
->bssid
, mgmt
->sa
, ETH_ALEN
);
516 os_memset(&event
, 0, sizeof(event
));
517 if (len
> 24 + sizeof(mgmt
->u
.assoc_resp
)) {
518 event
.assoc_info
.resp_ies
= (u8
*) mgmt
->u
.assoc_resp
.variable
;
519 event
.assoc_info
.resp_ies_len
=
520 len
- 24 - sizeof(mgmt
->u
.assoc_resp
);
523 event
.assoc_info
.freq
= drv
->assoc_freq
;
525 wpa_supplicant_event(drv
->ctx
, EVENT_ASSOC
, &event
);
529 static void mlme_event_connect(struct wpa_driver_nl80211_data
*drv
,
530 enum nl80211_commands cmd
, struct nlattr
*status
,
531 struct nlattr
*addr
, struct nlattr
*req_ie
,
532 struct nlattr
*resp_ie
)
534 union wpa_event_data event
;
536 if (drv
->capa
.flags
& WPA_DRIVER_FLAGS_SME
) {
538 * Avoid reporting two association events that would confuse
541 wpa_printf(MSG_DEBUG
, "nl80211: Ignore connect event (cmd=%d) "
542 "when using userspace SME", cmd
);
546 os_memset(&event
, 0, sizeof(event
));
547 if (cmd
== NL80211_CMD_CONNECT
&&
548 nla_get_u16(status
) != WLAN_STATUS_SUCCESS
) {
550 event
.assoc_reject
.resp_ies
= nla_data(resp_ie
);
551 event
.assoc_reject
.resp_ies_len
= nla_len(resp_ie
);
553 event
.assoc_reject
.status_code
= nla_get_u16(status
);
554 wpa_supplicant_event(drv
->ctx
, EVENT_ASSOC_REJECT
, &event
);
560 os_memcpy(drv
->bssid
, nla_data(addr
), ETH_ALEN
);
563 event
.assoc_info
.req_ies
= nla_data(req_ie
);
564 event
.assoc_info
.req_ies_len
= nla_len(req_ie
);
567 event
.assoc_info
.resp_ies
= nla_data(resp_ie
);
568 event
.assoc_info
.resp_ies_len
= nla_len(resp_ie
);
571 wpa_supplicant_event(drv
->ctx
, EVENT_ASSOC
, &event
);
575 static void mlme_timeout_event(struct wpa_driver_nl80211_data
*drv
,
576 enum nl80211_commands cmd
, struct nlattr
*addr
)
578 union wpa_event_data event
;
579 enum wpa_event_type ev
;
581 if (nla_len(addr
) != ETH_ALEN
)
584 wpa_printf(MSG_DEBUG
, "nl80211: MLME event %d; timeout with " MACSTR
,
585 cmd
, MAC2STR((u8
*) nla_data(addr
)));
587 if (cmd
== NL80211_CMD_AUTHENTICATE
)
588 ev
= EVENT_AUTH_TIMED_OUT
;
589 else if (cmd
== NL80211_CMD_ASSOCIATE
)
590 ev
= EVENT_ASSOC_TIMED_OUT
;
594 os_memset(&event
, 0, sizeof(event
));
595 os_memcpy(event
.timeout_event
.addr
, nla_data(addr
), ETH_ALEN
);
596 wpa_supplicant_event(drv
->ctx
, ev
, &event
);
600 static void mlme_event_action(struct wpa_driver_nl80211_data
*drv
,
601 struct nlattr
*freq
, const u8
*frame
, size_t len
)
603 const struct ieee80211_mgmt
*mgmt
;
604 union wpa_event_data event
;
607 mgmt
= (const struct ieee80211_mgmt
*) frame
;
609 wpa_printf(MSG_DEBUG
, "nl80211: Too short action frame");
613 fc
= le_to_host16(mgmt
->frame_control
);
614 stype
= WLAN_FC_GET_STYPE(fc
);
616 os_memset(&event
, 0, sizeof(event
));
617 event
.rx_action
.da
= mgmt
->da
;
618 event
.rx_action
.sa
= mgmt
->sa
;
619 event
.rx_action
.bssid
= mgmt
->bssid
;
620 event
.rx_action
.category
= mgmt
->u
.action
.category
;
621 event
.rx_action
.data
= &mgmt
->u
.action
.category
+ 1;
622 event
.rx_action
.len
= frame
+ len
- event
.rx_action
.data
;
624 event
.rx_action
.freq
= nla_get_u32(freq
);
625 wpa_supplicant_event(drv
->ctx
, EVENT_RX_ACTION
, &event
);
629 static void mlme_event_action_tx_status(struct wpa_driver_nl80211_data
*drv
,
630 struct nlattr
*cookie
, const u8
*frame
,
631 size_t len
, struct nlattr
*ack
)
633 union wpa_event_data event
;
634 const struct ieee80211_hdr
*hdr
;
641 cookie_val
= nla_get_u64(cookie
);
642 wpa_printf(MSG_DEBUG
, "nl80211: Action TX status: cookie=0%llx%s",
643 (long long unsigned int) cookie_val
,
644 cookie_val
== drv
->send_action_cookie
?
645 " (match)" : " (unknown)");
646 if (cookie_val
!= drv
->send_action_cookie
)
649 hdr
= (const struct ieee80211_hdr
*) frame
;
650 fc
= le_to_host16(hdr
->frame_control
);
652 os_memset(&event
, 0, sizeof(event
));
653 event
.tx_status
.type
= WLAN_FC_GET_TYPE(fc
);
654 event
.tx_status
.stype
= WLAN_FC_GET_STYPE(fc
);
655 event
.tx_status
.dst
= hdr
->addr1
;
656 event
.tx_status
.data
= frame
;
657 event
.tx_status
.data_len
= len
;
658 event
.tx_status
.ack
= ack
!= NULL
;
659 wpa_supplicant_event(drv
->ctx
, EVENT_TX_STATUS
, &event
);
663 static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data
*drv
,
664 enum wpa_event_type type
,
665 const u8
*frame
, size_t len
)
667 const struct ieee80211_mgmt
*mgmt
;
668 union wpa_event_data event
;
669 const u8
*bssid
= NULL
;
673 os_memset(&event
, 0, sizeof(event
));
675 mgmt
= (const struct ieee80211_mgmt
*) frame
;
678 /* Note: Same offset for Reason Code in both frame subtypes */
679 if (len
>= 24 + sizeof(mgmt
->u
.deauth
))
680 reason_code
= le_to_host16(mgmt
->u
.deauth
.reason_code
);
682 if (type
== EVENT_DISASSOC
) {
683 event
.disassoc_info
.addr
= bssid
;
684 event
.disassoc_info
.reason_code
= reason_code
;
686 event
.deauth_info
.addr
= bssid
;
687 event
.deauth_info
.reason_code
= reason_code
;
690 wpa_supplicant_event(drv
->ctx
, type
, &event
);
694 static void mlme_event(struct wpa_driver_nl80211_data
*drv
,
695 enum nl80211_commands cmd
, struct nlattr
*frame
,
696 struct nlattr
*addr
, struct nlattr
*timed_out
,
697 struct nlattr
*freq
, struct nlattr
*ack
,
698 struct nlattr
*cookie
)
700 if (timed_out
&& addr
) {
701 mlme_timeout_event(drv
, cmd
, addr
);
706 wpa_printf(MSG_DEBUG
, "nl80211: MLME event %d without frame "
711 wpa_printf(MSG_DEBUG
, "nl80211: MLME event %d", cmd
);
712 wpa_hexdump(MSG_MSGDUMP
, "nl80211: MLME event frame",
713 nla_data(frame
), nla_len(frame
));
716 case NL80211_CMD_AUTHENTICATE
:
717 mlme_event_auth(drv
, nla_data(frame
), nla_len(frame
));
719 case NL80211_CMD_ASSOCIATE
:
720 mlme_event_assoc(drv
, nla_data(frame
), nla_len(frame
));
722 case NL80211_CMD_DEAUTHENTICATE
:
723 mlme_event_deauth_disassoc(drv
, EVENT_DEAUTH
,
724 nla_data(frame
), nla_len(frame
));
726 case NL80211_CMD_DISASSOCIATE
:
727 mlme_event_deauth_disassoc(drv
, EVENT_DISASSOC
,
728 nla_data(frame
), nla_len(frame
));
730 case NL80211_CMD_ACTION
:
731 mlme_event_action(drv
, freq
, nla_data(frame
), nla_len(frame
));
733 case NL80211_CMD_ACTION_TX_STATUS
:
734 mlme_event_action_tx_status(drv
, cookie
, nla_data(frame
),
735 nla_len(frame
), ack
);
743 static void mlme_event_michael_mic_failure(struct wpa_driver_nl80211_data
*drv
,
746 union wpa_event_data data
;
748 wpa_printf(MSG_DEBUG
, "nl80211: MLME event Michael MIC failure");
749 os_memset(&data
, 0, sizeof(data
));
750 if (tb
[NL80211_ATTR_MAC
]) {
751 wpa_hexdump(MSG_DEBUG
, "nl80211: Source MAC address",
752 nla_data(tb
[NL80211_ATTR_MAC
]),
753 nla_len(tb
[NL80211_ATTR_MAC
]));
754 data
.michael_mic_failure
.src
= nla_data(tb
[NL80211_ATTR_MAC
]);
756 if (tb
[NL80211_ATTR_KEY_SEQ
]) {
757 wpa_hexdump(MSG_DEBUG
, "nl80211: TSC",
758 nla_data(tb
[NL80211_ATTR_KEY_SEQ
]),
759 nla_len(tb
[NL80211_ATTR_KEY_SEQ
]));
761 if (tb
[NL80211_ATTR_KEY_TYPE
]) {
762 enum nl80211_key_type key_type
=
763 nla_get_u32(tb
[NL80211_ATTR_KEY_TYPE
]);
764 wpa_printf(MSG_DEBUG
, "nl80211: Key Type %d", key_type
);
765 if (key_type
== NL80211_KEYTYPE_PAIRWISE
)
766 data
.michael_mic_failure
.unicast
= 1;
768 data
.michael_mic_failure
.unicast
= 1;
770 if (tb
[NL80211_ATTR_KEY_IDX
]) {
771 u8 key_id
= nla_get_u8(tb
[NL80211_ATTR_KEY_IDX
]);
772 wpa_printf(MSG_DEBUG
, "nl80211: Key Id %d", key_id
);
775 wpa_supplicant_event(drv
->ctx
, EVENT_MICHAEL_MIC_FAILURE
, &data
);
779 static void mlme_event_join_ibss(struct wpa_driver_nl80211_data
*drv
,
782 if (tb
[NL80211_ATTR_MAC
] == NULL
) {
783 wpa_printf(MSG_DEBUG
, "nl80211: No address in IBSS joined "
787 os_memcpy(drv
->bssid
, nla_data(tb
[NL80211_ATTR_MAC
]), ETH_ALEN
);
789 wpa_printf(MSG_DEBUG
, "nl80211: IBSS " MACSTR
" joined",
790 MAC2STR(drv
->bssid
));
792 wpa_supplicant_event(drv
->ctx
, EVENT_ASSOC
, NULL
);
796 static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data
*drv
,
797 int cancel_event
, struct nlattr
*tb
[])
799 unsigned int freq
, chan_type
, duration
;
800 union wpa_event_data data
;
803 if (tb
[NL80211_ATTR_WIPHY_FREQ
])
804 freq
= nla_get_u32(tb
[NL80211_ATTR_WIPHY_FREQ
]);
808 if (tb
[NL80211_ATTR_WIPHY_CHANNEL_TYPE
])
809 chan_type
= nla_get_u32(tb
[NL80211_ATTR_WIPHY_CHANNEL_TYPE
]);
813 if (tb
[NL80211_ATTR_DURATION
])
814 duration
= nla_get_u32(tb
[NL80211_ATTR_DURATION
]);
818 if (tb
[NL80211_ATTR_COOKIE
])
819 cookie
= nla_get_u64(tb
[NL80211_ATTR_COOKIE
]);
823 wpa_printf(MSG_DEBUG
, "nl80211: Remain-on-channel event (cancel=%d "
824 "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))",
825 cancel_event
, freq
, chan_type
, duration
,
826 (long long unsigned int) cookie
,
827 cookie
== drv
->remain_on_chan_cookie
? "match" : "unknown");
829 if (cookie
!= drv
->remain_on_chan_cookie
)
830 return; /* not for us */
832 drv
->pending_remain_on_chan
= !cancel_event
;
834 os_memset(&data
, 0, sizeof(data
));
835 data
.remain_on_channel
.freq
= freq
;
836 data
.remain_on_channel
.duration
= duration
;
837 wpa_supplicant_event(drv
->ctx
, cancel_event
?
838 EVENT_CANCEL_REMAIN_ON_CHANNEL
:
839 EVENT_REMAIN_ON_CHANNEL
, &data
);
843 static void send_scan_event(struct wpa_driver_nl80211_data
*drv
, int aborted
,
846 union wpa_event_data event
;
849 struct scan_info
*info
;
850 #define MAX_REPORT_FREQS 50
851 int freqs
[MAX_REPORT_FREQS
];
854 os_memset(&event
, 0, sizeof(event
));
855 info
= &event
.scan_info
;
856 info
->aborted
= aborted
;
858 if (tb
[NL80211_ATTR_SCAN_SSIDS
]) {
859 nla_for_each_nested(nl
, tb
[NL80211_ATTR_SCAN_SSIDS
], rem
) {
860 struct wpa_driver_scan_ssid
*s
=
861 &info
->ssids
[info
->num_ssids
];
862 s
->ssid
= nla_data(nl
);
863 s
->ssid_len
= nla_len(nl
);
865 if (info
->num_ssids
== WPAS_MAX_SCAN_SSIDS
)
869 if (tb
[NL80211_ATTR_SCAN_FREQUENCIES
]) {
870 nla_for_each_nested(nl
, tb
[NL80211_ATTR_SCAN_FREQUENCIES
], rem
)
872 freqs
[num_freqs
] = nla_get_u32(nl
);
874 if (num_freqs
== MAX_REPORT_FREQS
- 1)
878 info
->num_freqs
= num_freqs
;
880 wpa_supplicant_event(drv
->ctx
, EVENT_SCAN_RESULTS
, &event
);
884 static void nl80211_cqm_event(struct wpa_driver_nl80211_data
*drv
,
887 static struct nla_policy cqm_policy
[NL80211_ATTR_CQM_MAX
+ 1] = {
888 [NL80211_ATTR_CQM_RSSI_THOLD
] = { .type
= NLA_U32
},
889 [NL80211_ATTR_CQM_RSSI_HYST
] = { .type
= NLA_U8
},
890 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT
] = { .type
= NLA_U32
},
892 struct nlattr
*cqm
[NL80211_ATTR_CQM_MAX
+ 1];
893 enum nl80211_cqm_rssi_threshold_event event
;
894 union wpa_event_data ed
;
896 if (tb
[NL80211_ATTR_CQM
] == NULL
||
897 nla_parse_nested(cqm
, NL80211_ATTR_CQM_MAX
, tb
[NL80211_ATTR_CQM
],
899 wpa_printf(MSG_DEBUG
, "nl80211: Ignore invalid CQM event");
903 if (cqm
[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT
] == NULL
)
905 event
= nla_get_u32(cqm
[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT
]);
907 os_memset(&ed
, 0, sizeof(ed
));
909 if (event
== NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH
) {
910 wpa_printf(MSG_DEBUG
, "nl80211: Connection quality monitor "
912 ed
.signal_change
.above_threshold
= 1;
913 } else if (event
== NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW
) {
914 wpa_printf(MSG_DEBUG
, "nl80211: Connection quality monitor "
916 ed
.signal_change
.above_threshold
= 0;
920 wpa_supplicant_event(drv
->ctx
, EVENT_SIGNAL_CHANGE
, &ed
);
924 static int process_event(struct nl_msg
*msg
, void *arg
)
926 struct wpa_driver_nl80211_data
*drv
= arg
;
927 struct genlmsghdr
*gnlh
= nlmsg_data(nlmsg_hdr(msg
));
928 struct nlattr
*tb
[NL80211_ATTR_MAX
+ 1];
929 union wpa_event_data data
;
931 nla_parse(tb
, NL80211_ATTR_MAX
, genlmsg_attrdata(gnlh
, 0),
932 genlmsg_attrlen(gnlh
, 0), NULL
);
934 if (tb
[NL80211_ATTR_IFINDEX
]) {
935 int ifindex
= nla_get_u32(tb
[NL80211_ATTR_IFINDEX
]);
936 if (ifindex
!= drv
->ifindex
) {
937 wpa_printf(MSG_DEBUG
, "nl80211: Ignored event (cmd=%d)"
938 " for foreign interface (ifindex %d)",
944 if (drv
->ap_scan_as_station
&&
945 (gnlh
->cmd
== NL80211_CMD_NEW_SCAN_RESULTS
||
946 gnlh
->cmd
== NL80211_CMD_SCAN_ABORTED
)) {
947 wpa_driver_nl80211_set_mode(&drv
->first_bss
,
949 drv
->ap_scan_as_station
= 0;
953 case NL80211_CMD_TRIGGER_SCAN
:
954 wpa_printf(MSG_DEBUG
, "nl80211: Scan trigger");
956 case NL80211_CMD_NEW_SCAN_RESULTS
:
957 wpa_printf(MSG_DEBUG
, "nl80211: New scan results available");
958 drv
->scan_complete_events
= 1;
959 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout
, drv
,
961 send_scan_event(drv
, 0, tb
);
963 case NL80211_CMD_SCAN_ABORTED
:
964 wpa_printf(MSG_DEBUG
, "nl80211: Scan aborted");
966 * Need to indicate that scan results are available in order
967 * not to make wpa_supplicant stop its scanning.
969 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout
, drv
,
971 send_scan_event(drv
, 1, tb
);
973 case NL80211_CMD_AUTHENTICATE
:
974 case NL80211_CMD_ASSOCIATE
:
975 case NL80211_CMD_DEAUTHENTICATE
:
976 case NL80211_CMD_DISASSOCIATE
:
977 case NL80211_CMD_ACTION
:
978 case NL80211_CMD_ACTION_TX_STATUS
:
979 mlme_event(drv
, gnlh
->cmd
, tb
[NL80211_ATTR_FRAME
],
980 tb
[NL80211_ATTR_MAC
], tb
[NL80211_ATTR_TIMED_OUT
],
981 tb
[NL80211_ATTR_WIPHY_FREQ
], tb
[NL80211_ATTR_ACK
],
982 tb
[NL80211_ATTR_COOKIE
]);
984 case NL80211_CMD_CONNECT
:
985 case NL80211_CMD_ROAM
:
986 mlme_event_connect(drv
, gnlh
->cmd
,
987 tb
[NL80211_ATTR_STATUS_CODE
],
988 tb
[NL80211_ATTR_MAC
],
989 tb
[NL80211_ATTR_REQ_IE
],
990 tb
[NL80211_ATTR_RESP_IE
]);
992 case NL80211_CMD_DISCONNECT
:
993 if (drv
->capa
.flags
& WPA_DRIVER_FLAGS_SME
) {
995 * Avoid reporting two disassociation events that could
996 * confuse the core code.
998 wpa_printf(MSG_DEBUG
, "nl80211: Ignore disconnect "
999 "event when using userspace SME");
1002 drv
->associated
= 0;
1003 os_memset(&data
, 0, sizeof(data
));
1004 if (tb
[NL80211_ATTR_REASON_CODE
])
1005 data
.disassoc_info
.reason_code
=
1006 nla_get_u16(tb
[NL80211_ATTR_REASON_CODE
]);
1007 wpa_supplicant_event(drv
->ctx
, EVENT_DISASSOC
, &data
);
1009 case NL80211_CMD_MICHAEL_MIC_FAILURE
:
1010 mlme_event_michael_mic_failure(drv
, tb
);
1012 case NL80211_CMD_JOIN_IBSS
:
1013 mlme_event_join_ibss(drv
, tb
);
1015 case NL80211_CMD_REMAIN_ON_CHANNEL
:
1016 mlme_event_remain_on_channel(drv
, 0, tb
);
1018 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL
:
1019 mlme_event_remain_on_channel(drv
, 1, tb
);
1021 case NL80211_CMD_NOTIFY_CQM
:
1022 nl80211_cqm_event(drv
, tb
);
1025 wpa_printf(MSG_DEBUG
, "nl80211: Ignored unknown event "
1026 "(cmd=%d)", gnlh
->cmd
);
1034 static void wpa_driver_nl80211_event_receive(int sock
, void *eloop_ctx
,
1038 struct wpa_driver_nl80211_data
*drv
= eloop_ctx
;
1040 wpa_printf(MSG_DEBUG
, "nl80211: Event message available");
1042 cb
= nl_cb_clone(drv
->nl_cb
);
1045 nl_cb_set(cb
, NL_CB_SEQ_CHECK
, NL_CB_CUSTOM
, no_seq_check
, NULL
);
1046 nl_cb_set(cb
, NL_CB_VALID
, NL_CB_CUSTOM
, process_event
, drv
);
1047 nl_recvmsgs(drv
->nl_handle_event
, cb
);
1053 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain
1054 * @priv: driver_nl80211 private data
1055 * @alpha2_arg: country to which to switch to
1056 * Returns: 0 on success, -1 on failure
1058 * This asks nl80211 to set the regulatory domain for given
1059 * country ISO / IEC alpha2.
1061 static int wpa_driver_nl80211_set_country(void *priv
, const char *alpha2_arg
)
1063 struct i802_bss
*bss
= priv
;
1064 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
1068 msg
= nlmsg_alloc();
1072 alpha2
[0] = alpha2_arg
[0];
1073 alpha2
[1] = alpha2_arg
[1];
1076 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0,
1077 0, NL80211_CMD_REQ_SET_REG
, 0);
1079 NLA_PUT_STRING(msg
, NL80211_ATTR_REG_ALPHA2
, alpha2
);
1080 if (send_and_recv_msgs(drv
, msg
, NULL
, NULL
))
1089 struct wiphy_info_data
{
1093 int connect_supported
;
1097 static int wiphy_info_handler(struct nl_msg
*msg
, void *arg
)
1099 struct nlattr
*tb
[NL80211_ATTR_MAX
+ 1];
1100 struct genlmsghdr
*gnlh
= nlmsg_data(nlmsg_hdr(msg
));
1101 struct wiphy_info_data
*info
= arg
;
1103 nla_parse(tb
, NL80211_ATTR_MAX
, genlmsg_attrdata(gnlh
, 0),
1104 genlmsg_attrlen(gnlh
, 0), NULL
);
1106 if (tb
[NL80211_ATTR_MAX_NUM_SCAN_SSIDS
])
1107 info
->max_scan_ssids
=
1108 nla_get_u8(tb
[NL80211_ATTR_MAX_NUM_SCAN_SSIDS
]);
1110 if (tb
[NL80211_ATTR_SUPPORTED_IFTYPES
]) {
1111 struct nlattr
*nl_mode
;
1113 nla_for_each_nested(nl_mode
,
1114 tb
[NL80211_ATTR_SUPPORTED_IFTYPES
], i
) {
1115 if (nl_mode
->nla_type
== NL80211_IFTYPE_AP
) {
1116 info
->ap_supported
= 1;
1122 if (tb
[NL80211_ATTR_SUPPORTED_COMMANDS
]) {
1123 struct nlattr
*nl_cmd
;
1126 nla_for_each_nested(nl_cmd
,
1127 tb
[NL80211_ATTR_SUPPORTED_COMMANDS
], i
) {
1128 u32 cmd
= nla_get_u32(nl_cmd
);
1129 if (cmd
== NL80211_CMD_AUTHENTICATE
)
1130 info
->auth_supported
= 1;
1131 else if (cmd
== NL80211_CMD_CONNECT
)
1132 info
->connect_supported
= 1;
1140 static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data
*drv
,
1141 struct wiphy_info_data
*info
)
1145 os_memset(info
, 0, sizeof(*info
));
1146 msg
= nlmsg_alloc();
1150 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0,
1151 0, NL80211_CMD_GET_WIPHY
, 0);
1153 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, drv
->first_bss
.ifindex
);
1155 if (send_and_recv_msgs(drv
, msg
, wiphy_info_handler
, info
) == 0)
1164 static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data
*drv
)
1166 struct wiphy_info_data info
;
1167 if (wpa_driver_nl80211_get_info(drv
, &info
))
1169 drv
->has_capability
= 1;
1170 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */
1171 drv
->capa
.key_mgmt
= WPA_DRIVER_CAPA_KEY_MGMT_WPA
|
1172 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK
|
1173 WPA_DRIVER_CAPA_KEY_MGMT_WPA2
|
1174 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK
;
1175 drv
->capa
.enc
= WPA_DRIVER_CAPA_ENC_WEP40
|
1176 WPA_DRIVER_CAPA_ENC_WEP104
|
1177 WPA_DRIVER_CAPA_ENC_TKIP
|
1178 WPA_DRIVER_CAPA_ENC_CCMP
;
1179 drv
->capa
.auth
= WPA_DRIVER_AUTH_OPEN
|
1180 WPA_DRIVER_AUTH_SHARED
|
1181 WPA_DRIVER_AUTH_LEAP
;
1183 drv
->capa
.max_scan_ssids
= info
.max_scan_ssids
;
1184 if (info
.ap_supported
)
1185 drv
->capa
.flags
|= WPA_DRIVER_FLAGS_AP
;
1187 if (info
.auth_supported
)
1188 drv
->capa
.flags
|= WPA_DRIVER_FLAGS_SME
;
1189 else if (!info
.connect_supported
) {
1190 wpa_printf(MSG_INFO
, "nl80211: Driver does not support "
1191 "authentication/association or connect commands");
1195 drv
->capa
.flags
|= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE
;
1196 drv
->capa
.max_remain_on_chan
= 5000;
1200 #endif /* HOSTAPD */
1203 static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data
*drv
,
1208 /* Initialize generic netlink and nl80211 */
1210 drv
->nl_cb
= nl_cb_alloc(NL_CB_DEFAULT
);
1211 if (drv
->nl_cb
== NULL
) {
1212 wpa_printf(MSG_ERROR
, "nl80211: Failed to allocate netlink "
1217 drv
->nl_handle
= nl_handle_alloc_cb(drv
->nl_cb
);
1218 if (drv
->nl_handle
== NULL
) {
1219 wpa_printf(MSG_ERROR
, "nl80211: Failed to allocate netlink "
1224 drv
->nl_handle_event
= nl_handle_alloc_cb(drv
->nl_cb
);
1225 if (drv
->nl_handle_event
== NULL
) {
1226 wpa_printf(MSG_ERROR
, "nl80211: Failed to allocate netlink "
1227 "callbacks (event)");
1231 if (genl_connect(drv
->nl_handle
)) {
1232 wpa_printf(MSG_ERROR
, "nl80211: Failed to connect to generic "
1237 if (genl_connect(drv
->nl_handle_event
)) {
1238 wpa_printf(MSG_ERROR
, "nl80211: Failed to connect to generic "
1243 #ifdef CONFIG_LIBNL20
1244 if (genl_ctrl_alloc_cache(drv
->nl_handle
, &drv
->nl_cache
) < 0) {
1245 wpa_printf(MSG_ERROR
, "nl80211: Failed to allocate generic "
1249 if (genl_ctrl_alloc_cache(drv
->nl_handle_event
, &drv
->nl_cache_event
) <
1251 wpa_printf(MSG_ERROR
, "nl80211: Failed to allocate generic "
1252 "netlink cache (event)");
1255 #else /* CONFIG_LIBNL20 */
1256 drv
->nl_cache
= genl_ctrl_alloc_cache(drv
->nl_handle
);
1257 if (drv
->nl_cache
== NULL
) {
1258 wpa_printf(MSG_ERROR
, "nl80211: Failed to allocate generic "
1262 drv
->nl_cache_event
= genl_ctrl_alloc_cache(drv
->nl_handle_event
);
1263 if (drv
->nl_cache_event
== NULL
) {
1264 wpa_printf(MSG_ERROR
, "nl80211: Failed to allocate generic "
1265 "netlink cache (event)");
1268 #endif /* CONFIG_LIBNL20 */
1270 drv
->nl80211
= genl_ctrl_search_by_name(drv
->nl_cache
, "nl80211");
1271 if (drv
->nl80211
== NULL
) {
1272 wpa_printf(MSG_ERROR
, "nl80211: 'nl80211' generic netlink not "
1277 ret
= nl_get_multicast_id(drv
, "nl80211", "scan");
1279 ret
= nl_socket_add_membership(drv
->nl_handle_event
, ret
);
1281 wpa_printf(MSG_ERROR
, "nl80211: Could not add multicast "
1282 "membership for scan events: %d (%s)",
1283 ret
, strerror(-ret
));
1287 ret
= nl_get_multicast_id(drv
, "nl80211", "mlme");
1289 ret
= nl_socket_add_membership(drv
->nl_handle_event
, ret
);
1291 wpa_printf(MSG_ERROR
, "nl80211: Could not add multicast "
1292 "membership for mlme events: %d (%s)",
1293 ret
, strerror(-ret
));
1297 eloop_register_read_sock(nl_socket_get_fd(drv
->nl_handle_event
),
1298 wpa_driver_nl80211_event_receive
, drv
, ctx
);
1303 nl_cache_free(drv
->nl_cache_event
);
1305 nl_cache_free(drv
->nl_cache
);
1307 nl_handle_destroy(drv
->nl_handle_event
);
1309 nl_handle_destroy(drv
->nl_handle
);
1311 nl_cb_put(drv
->nl_cb
);
1318 * wpa_driver_nl80211_init - Initialize nl80211 driver interface
1319 * @ctx: context to be used when calling wpa_supplicant functions,
1320 * e.g., wpa_supplicant_event()
1321 * @ifname: interface name, e.g., wlan0
1322 * Returns: Pointer to private data, %NULL on failure
1324 static void * wpa_driver_nl80211_init(void *ctx
, const char *ifname
)
1326 struct wpa_driver_nl80211_data
*drv
;
1327 struct netlink_config
*cfg
;
1328 struct i802_bss
*bss
;
1330 drv
= os_zalloc(sizeof(*drv
));
1334 bss
= &drv
->first_bss
;
1336 os_strlcpy(bss
->ifname
, ifname
, sizeof(bss
->ifname
));
1337 drv
->monitor_ifidx
= -1;
1338 drv
->monitor_sock
= -1;
1339 drv
->ioctl_sock
= -1;
1341 if (wpa_driver_nl80211_init_nl(drv
, ctx
)) {
1346 drv
->ioctl_sock
= socket(PF_INET
, SOCK_DGRAM
, 0);
1347 if (drv
->ioctl_sock
< 0) {
1348 perror("socket(PF_INET,SOCK_DGRAM)");
1352 cfg
= os_zalloc(sizeof(*cfg
));
1356 cfg
->newlink_cb
= wpa_driver_nl80211_event_rtm_newlink
;
1357 cfg
->dellink_cb
= wpa_driver_nl80211_event_rtm_dellink
;
1358 drv
->netlink
= netlink_init(cfg
);
1359 if (drv
->netlink
== NULL
) {
1363 if (wpa_driver_nl80211_finish_drv_init(drv
))
1369 netlink_deinit(drv
->netlink
);
1370 if (drv
->ioctl_sock
>= 0)
1371 close(drv
->ioctl_sock
);
1373 genl_family_put(drv
->nl80211
);
1374 nl_cache_free(drv
->nl_cache
);
1375 nl_handle_destroy(drv
->nl_handle
);
1376 nl_cb_put(drv
->nl_cb
);
1377 eloop_unregister_read_sock(nl_socket_get_fd(drv
->nl_handle_event
));
1384 static int nl80211_register_action_frame(struct wpa_driver_nl80211_data
*drv
,
1385 const u8
*match
, size_t match_len
)
1390 msg
= nlmsg_alloc();
1394 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0, 0,
1395 NL80211_CMD_REGISTER_ACTION
, 0);
1397 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, drv
->ifindex
);
1398 NLA_PUT(msg
, NL80211_ATTR_FRAME_MATCH
, match_len
, match
);
1400 ret
= send_and_recv(drv
, drv
->nl_handle_event
, msg
, NULL
, NULL
);
1403 wpa_printf(MSG_DEBUG
, "nl80211: Register Action command "
1404 "failed: ret=%d (%s)", ret
, strerror(-ret
));
1405 wpa_hexdump(MSG_DEBUG
, "nl80211: Register Action match",
1407 goto nla_put_failure
;
1416 static int nl80211_register_action_frames(struct wpa_driver_nl80211_data
*drv
)
1418 /* FT Action frames */
1419 if (nl80211_register_action_frame(drv
, (u8
*) "\x06", 1) < 0)
1422 drv
->capa
.key_mgmt
|= WPA_DRIVER_CAPA_KEY_MGMT_FT
|
1423 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK
;
1430 wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data
*drv
)
1432 struct i802_bss
*bss
= &drv
->first_bss
;
1434 drv
->ifindex
= if_nametoindex(bss
->ifname
);
1435 drv
->first_bss
.ifindex
= drv
->ifindex
;
1438 if (wpa_driver_nl80211_set_mode(bss
, IEEE80211_MODE_INFRA
) < 0) {
1439 wpa_printf(MSG_DEBUG
, "nl80211: Could not configure driver to "
1440 "use managed mode");
1443 if (linux_set_iface_flags(drv
->ioctl_sock
, bss
->ifname
, 1)) {
1444 wpa_printf(MSG_ERROR
, "Could not set interface '%s' UP",
1449 if (wpa_driver_nl80211_capa(drv
))
1452 netlink_send_oper_ifla(drv
->netlink
, drv
->ifindex
,
1453 1, IF_OPER_DORMANT
);
1454 #endif /* HOSTAPD */
1456 if (nl80211_register_action_frames(drv
) < 0) {
1457 wpa_printf(MSG_DEBUG
, "nl80211: Failed to register Action "
1458 "frame processing - ignore for now");
1460 * Older kernel versions did not support this, so ignore the
1461 * error for now. Some functionality may not be available
1470 static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data
*drv
)
1474 msg
= nlmsg_alloc();
1478 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0,
1479 0, NL80211_CMD_DEL_BEACON
, 0);
1480 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, drv
->ifindex
);
1482 return send_and_recv_msgs(drv
, msg
, NULL
, NULL
);
1489 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface
1490 * @priv: Pointer to private nl80211 data from wpa_driver_nl80211_init()
1492 * Shut down driver interface and processing of driver events. Free
1493 * private data buffer if one was allocated in wpa_driver_nl80211_init().
1495 static void wpa_driver_nl80211_deinit(void *priv
)
1497 struct i802_bss
*bss
= priv
;
1498 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
1500 if (drv
->added_if_into_bridge
) {
1501 if (linux_br_del_if(drv
->ioctl_sock
, drv
->brname
, bss
->ifname
)
1503 wpa_printf(MSG_INFO
, "nl80211: Failed to remove "
1504 "interface %s from bridge %s: %s",
1505 bss
->ifname
, drv
->brname
, strerror(errno
));
1507 if (drv
->added_bridge
) {
1508 if (linux_br_del(drv
->ioctl_sock
, drv
->brname
) < 0)
1509 wpa_printf(MSG_INFO
, "nl80211: Failed to remove "
1511 drv
->brname
, strerror(errno
));
1514 nl80211_remove_monitor_interface(drv
);
1516 if (drv
->nlmode
== NL80211_IFTYPE_AP
)
1517 wpa_driver_nl80211_del_beacon(drv
);
1520 if (drv
->last_freq_ht
) {
1521 /* Clear HT flags from the driver */
1522 struct hostapd_freq_params freq
;
1523 os_memset(&freq
, 0, sizeof(freq
));
1524 freq
.freq
= drv
->last_freq
;
1525 i802_set_freq(priv
, &freq
);
1528 if (drv
->eapol_sock
>= 0) {
1529 eloop_unregister_read_sock(drv
->eapol_sock
);
1530 close(drv
->eapol_sock
);
1533 if (drv
->if_indices
!= drv
->default_if_indices
)
1534 os_free(drv
->if_indices
);
1535 #endif /* HOSTAPD */
1537 if (drv
->disable_11b_rates
)
1538 nl80211_disable_11b_rates(drv
, drv
->ifindex
, 0);
1540 netlink_send_oper_ifla(drv
->netlink
, drv
->ifindex
, 0, IF_OPER_UP
);
1541 netlink_deinit(drv
->netlink
);
1543 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout
, drv
, drv
->ctx
);
1545 (void) linux_set_iface_flags(drv
->ioctl_sock
, bss
->ifname
, 0);
1546 wpa_driver_nl80211_set_mode(bss
, IEEE80211_MODE_INFRA
);
1548 if (drv
->ioctl_sock
>= 0)
1549 close(drv
->ioctl_sock
);
1551 eloop_unregister_read_sock(nl_socket_get_fd(drv
->nl_handle_event
));
1552 genl_family_put(drv
->nl80211
);
1553 nl_cache_free(drv
->nl_cache
);
1554 nl_cache_free(drv
->nl_cache_event
);
1555 nl_handle_destroy(drv
->nl_handle
);
1556 nl_handle_destroy(drv
->nl_handle_event
);
1557 nl_cb_put(drv
->nl_cb
);
1559 eloop_cancel_timeout(wpa_driver_nl80211_probe_req_report_timeout
,
1562 os_free(drv
->filter_ssids
);
1569 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion
1570 * @eloop_ctx: Driver private data
1571 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init()
1573 * This function can be used as registered timeout when starting a scan to
1574 * generate a scan completed event if the driver does not report this.
1576 static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx
, void *timeout_ctx
)
1578 struct wpa_driver_nl80211_data
*drv
= eloop_ctx
;
1579 if (drv
->ap_scan_as_station
) {
1580 wpa_driver_nl80211_set_mode(&drv
->first_bss
,
1582 drv
->ap_scan_as_station
= 0;
1584 wpa_printf(MSG_DEBUG
, "Scan timeout - try to get results");
1585 wpa_supplicant_event(timeout_ctx
, EVENT_SCAN_RESULTS
, NULL
);
1590 * wpa_driver_nl80211_scan - Request the driver to initiate scan
1591 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
1592 * @params: Scan parameters
1593 * Returns: 0 on success, -1 on failure
1595 static int wpa_driver_nl80211_scan(void *priv
,
1596 struct wpa_driver_scan_params
*params
)
1598 struct i802_bss
*bss
= priv
;
1599 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
1600 int ret
= 0, timeout
;
1601 struct nl_msg
*msg
, *ssids
, *freqs
;
1604 msg
= nlmsg_alloc();
1605 ssids
= nlmsg_alloc();
1606 freqs
= nlmsg_alloc();
1607 if (!msg
|| !ssids
|| !freqs
) {
1614 os_free(drv
->filter_ssids
);
1615 drv
->filter_ssids
= params
->filter_ssids
;
1616 params
->filter_ssids
= NULL
;
1617 drv
->num_filter_ssids
= params
->num_filter_ssids
;
1619 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0, 0,
1620 NL80211_CMD_TRIGGER_SCAN
, 0);
1622 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, drv
->ifindex
);
1624 for (i
= 0; i
< params
->num_ssids
; i
++) {
1625 wpa_hexdump_ascii(MSG_MSGDUMP
, "nl80211: Scan SSID",
1626 params
->ssids
[i
].ssid
,
1627 params
->ssids
[i
].ssid_len
);
1628 NLA_PUT(ssids
, i
+ 1, params
->ssids
[i
].ssid_len
,
1629 params
->ssids
[i
].ssid
);
1631 if (params
->num_ssids
)
1632 nla_put_nested(msg
, NL80211_ATTR_SCAN_SSIDS
, ssids
);
1634 if (params
->extra_ies
) {
1635 wpa_hexdump_ascii(MSG_MSGDUMP
, "nl80211: Scan extra IEs",
1636 params
->extra_ies
, params
->extra_ies_len
);
1637 NLA_PUT(msg
, NL80211_ATTR_IE
, params
->extra_ies_len
,
1641 if (params
->freqs
) {
1642 for (i
= 0; params
->freqs
[i
]; i
++) {
1643 wpa_printf(MSG_MSGDUMP
, "nl80211: Scan frequency %u "
1644 "MHz", params
->freqs
[i
]);
1645 NLA_PUT_U32(freqs
, i
+ 1, params
->freqs
[i
]);
1647 nla_put_nested(msg
, NL80211_ATTR_SCAN_FREQUENCIES
, freqs
);
1650 ret
= send_and_recv_msgs(drv
, msg
, NULL
, NULL
);
1653 wpa_printf(MSG_DEBUG
, "nl80211: Scan trigger failed: ret=%d "
1654 "(%s)", ret
, strerror(-ret
));
1656 if (drv
->nlmode
== NL80211_IFTYPE_AP
) {
1658 * mac80211 does not allow scan requests in AP mode, so
1659 * try to do this in station mode.
1661 if (wpa_driver_nl80211_set_mode(bss
,
1662 IEEE80211_MODE_INFRA
))
1663 goto nla_put_failure
;
1665 if (wpa_driver_nl80211_scan(drv
, params
)) {
1666 wpa_driver_nl80211_set_mode(bss
,
1668 goto nla_put_failure
;
1671 /* Restore AP mode when processing scan results */
1672 drv
->ap_scan_as_station
= 1;
1675 goto nla_put_failure
;
1677 goto nla_put_failure
;
1678 #endif /* HOSTAPD */
1681 /* Not all drivers generate "scan completed" wireless event, so try to
1682 * read results after a timeout. */
1684 if (drv
->scan_complete_events
) {
1686 * The driver seems to deliver events to notify when scan is
1687 * complete, so use longer timeout to avoid race conditions
1688 * with scanning and following association request.
1692 wpa_printf(MSG_DEBUG
, "Scan requested (ret=%d) - scan timeout %d "
1693 "seconds", ret
, timeout
);
1694 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout
, drv
, drv
->ctx
);
1695 eloop_register_timeout(timeout
, 0, wpa_driver_nl80211_scan_timeout
,
1706 static const u8
* nl80211_get_ie(const u8
*ies
, size_t ies_len
, u8 ie
)
1708 const u8
*end
, *pos
;
1714 end
= ies
+ ies_len
;
1716 while (pos
+ 1 < end
) {
1717 if (pos
+ 2 + pos
[1] > end
)
1728 static int nl80211_scan_filtered(struct wpa_driver_nl80211_data
*drv
,
1729 const u8
*ie
, size_t ie_len
)
1734 if (drv
->filter_ssids
== NULL
)
1737 ssid
= nl80211_get_ie(ie
, ie_len
, WLAN_EID_SSID
);
1741 for (i
= 0; i
< drv
->num_filter_ssids
; i
++) {
1742 if (ssid
[1] == drv
->filter_ssids
[i
].ssid_len
&&
1743 os_memcmp(ssid
+ 2, drv
->filter_ssids
[i
].ssid
, ssid
[1]) ==
1752 struct nl80211_bss_info_arg
{
1753 struct wpa_driver_nl80211_data
*drv
;
1754 struct wpa_scan_results
*res
;
1757 static int bss_info_handler(struct nl_msg
*msg
, void *arg
)
1759 struct nlattr
*tb
[NL80211_ATTR_MAX
+ 1];
1760 struct genlmsghdr
*gnlh
= nlmsg_data(nlmsg_hdr(msg
));
1761 struct nlattr
*bss
[NL80211_BSS_MAX
+ 1];
1762 static struct nla_policy bss_policy
[NL80211_BSS_MAX
+ 1] = {
1763 [NL80211_BSS_BSSID
] = { .type
= NLA_UNSPEC
},
1764 [NL80211_BSS_FREQUENCY
] = { .type
= NLA_U32
},
1765 [NL80211_BSS_TSF
] = { .type
= NLA_U64
},
1766 [NL80211_BSS_BEACON_INTERVAL
] = { .type
= NLA_U16
},
1767 [NL80211_BSS_CAPABILITY
] = { .type
= NLA_U16
},
1768 [NL80211_BSS_INFORMATION_ELEMENTS
] = { .type
= NLA_UNSPEC
},
1769 [NL80211_BSS_SIGNAL_MBM
] = { .type
= NLA_U32
},
1770 [NL80211_BSS_SIGNAL_UNSPEC
] = { .type
= NLA_U8
},
1771 [NL80211_BSS_STATUS
] = { .type
= NLA_U32
},
1772 [NL80211_BSS_SEEN_MS_AGO
] = { .type
= NLA_U32
},
1773 [NL80211_BSS_BEACON_IES
] = { .type
= NLA_UNSPEC
},
1775 struct nl80211_bss_info_arg
*_arg
= arg
;
1776 struct wpa_scan_results
*res
= _arg
->res
;
1777 struct wpa_scan_res
**tmp
;
1778 struct wpa_scan_res
*r
;
1779 const u8
*ie
, *beacon_ie
;
1780 size_t ie_len
, beacon_ie_len
;
1783 nla_parse(tb
, NL80211_ATTR_MAX
, genlmsg_attrdata(gnlh
, 0),
1784 genlmsg_attrlen(gnlh
, 0), NULL
);
1785 if (!tb
[NL80211_ATTR_BSS
])
1787 if (nla_parse_nested(bss
, NL80211_BSS_MAX
, tb
[NL80211_ATTR_BSS
],
1790 if (bss
[NL80211_BSS_INFORMATION_ELEMENTS
]) {
1791 ie
= nla_data(bss
[NL80211_BSS_INFORMATION_ELEMENTS
]);
1792 ie_len
= nla_len(bss
[NL80211_BSS_INFORMATION_ELEMENTS
]);
1797 if (bss
[NL80211_BSS_BEACON_IES
]) {
1798 beacon_ie
= nla_data(bss
[NL80211_BSS_BEACON_IES
]);
1799 beacon_ie_len
= nla_len(bss
[NL80211_BSS_BEACON_IES
]);
1805 if (nl80211_scan_filtered(_arg
->drv
, ie
? ie
: beacon_ie
,
1806 ie
? ie_len
: beacon_ie_len
))
1809 r
= os_zalloc(sizeof(*r
) + ie_len
+ beacon_ie_len
);
1812 if (bss
[NL80211_BSS_BSSID
])
1813 os_memcpy(r
->bssid
, nla_data(bss
[NL80211_BSS_BSSID
]),
1815 if (bss
[NL80211_BSS_FREQUENCY
])
1816 r
->freq
= nla_get_u32(bss
[NL80211_BSS_FREQUENCY
]);
1817 if (bss
[NL80211_BSS_BEACON_INTERVAL
])
1818 r
->beacon_int
= nla_get_u16(bss
[NL80211_BSS_BEACON_INTERVAL
]);
1819 if (bss
[NL80211_BSS_CAPABILITY
])
1820 r
->caps
= nla_get_u16(bss
[NL80211_BSS_CAPABILITY
]);
1821 r
->flags
|= WPA_SCAN_NOISE_INVALID
;
1822 if (bss
[NL80211_BSS_SIGNAL_MBM
]) {
1823 r
->level
= nla_get_u32(bss
[NL80211_BSS_SIGNAL_MBM
]);
1824 r
->level
/= 100; /* mBm to dBm */
1825 r
->flags
|= WPA_SCAN_LEVEL_DBM
| WPA_SCAN_QUAL_INVALID
;
1826 } else if (bss
[NL80211_BSS_SIGNAL_UNSPEC
]) {
1827 r
->level
= nla_get_u8(bss
[NL80211_BSS_SIGNAL_UNSPEC
]);
1828 r
->flags
|= WPA_SCAN_LEVEL_INVALID
;
1830 r
->flags
|= WPA_SCAN_LEVEL_INVALID
| WPA_SCAN_QUAL_INVALID
;
1831 if (bss
[NL80211_BSS_TSF
])
1832 r
->tsf
= nla_get_u64(bss
[NL80211_BSS_TSF
]);
1833 if (bss
[NL80211_BSS_SEEN_MS_AGO
])
1834 r
->age
= nla_get_u32(bss
[NL80211_BSS_SEEN_MS_AGO
]);
1836 pos
= (u8
*) (r
+ 1);
1838 os_memcpy(pos
, ie
, ie_len
);
1841 r
->beacon_ie_len
= beacon_ie_len
;
1843 os_memcpy(pos
, beacon_ie
, beacon_ie_len
);
1845 if (bss
[NL80211_BSS_STATUS
]) {
1846 enum nl80211_bss_status status
;
1847 status
= nla_get_u32(bss
[NL80211_BSS_STATUS
]);
1849 case NL80211_BSS_STATUS_AUTHENTICATED
:
1850 r
->flags
|= WPA_SCAN_AUTHENTICATED
;
1852 case NL80211_BSS_STATUS_ASSOCIATED
:
1853 r
->flags
|= WPA_SCAN_ASSOCIATED
;
1860 tmp
= os_realloc(res
->res
,
1861 (res
->num
+ 1) * sizeof(struct wpa_scan_res
*));
1866 tmp
[res
->num
++] = r
;
1873 static void clear_state_mismatch(struct wpa_driver_nl80211_data
*drv
,
1876 if (drv
->capa
.flags
& WPA_DRIVER_FLAGS_SME
) {
1877 wpa_printf(MSG_DEBUG
, "nl80211: Clear possible state "
1878 "mismatch (" MACSTR
")", MAC2STR(addr
));
1879 wpa_driver_nl80211_mlme(drv
, addr
,
1880 NL80211_CMD_DEAUTHENTICATE
,
1881 WLAN_REASON_PREV_AUTH_NOT_VALID
, 1);
1886 static void wpa_driver_nl80211_check_bss_status(
1887 struct wpa_driver_nl80211_data
*drv
, struct wpa_scan_results
*res
)
1891 for (i
= 0; i
< res
->num
; i
++) {
1892 struct wpa_scan_res
*r
= res
->res
[i
];
1893 if (r
->flags
& WPA_SCAN_AUTHENTICATED
) {
1894 wpa_printf(MSG_DEBUG
, "nl80211: Scan results "
1895 "indicates BSS status with " MACSTR
1896 " as authenticated",
1898 if (drv
->nlmode
== NL80211_IFTYPE_STATION
&&
1899 os_memcmp(r
->bssid
, drv
->bssid
, ETH_ALEN
) != 0 &&
1900 os_memcmp(r
->bssid
, drv
->auth_bssid
, ETH_ALEN
) !=
1902 wpa_printf(MSG_DEBUG
, "nl80211: Unknown BSSID"
1903 " in local state (auth=" MACSTR
1904 " assoc=" MACSTR
")",
1905 MAC2STR(drv
->auth_bssid
),
1906 MAC2STR(drv
->bssid
));
1907 clear_state_mismatch(drv
, r
->bssid
);
1911 if (r
->flags
& WPA_SCAN_ASSOCIATED
) {
1912 wpa_printf(MSG_DEBUG
, "nl80211: Scan results "
1913 "indicate BSS status with " MACSTR
1916 if (drv
->nlmode
== NL80211_IFTYPE_STATION
&&
1918 wpa_printf(MSG_DEBUG
, "nl80211: Local state "
1919 "(not associated) does not match "
1921 clear_state_mismatch(drv
, r
->bssid
);
1922 } else if (drv
->nlmode
== NL80211_IFTYPE_STATION
&&
1923 os_memcmp(drv
->bssid
, r
->bssid
, ETH_ALEN
) !=
1925 wpa_printf(MSG_DEBUG
, "nl80211: Local state "
1926 "(associated with " MACSTR
") does "
1927 "not match with BSS state",
1928 MAC2STR(drv
->bssid
));
1929 clear_state_mismatch(drv
, r
->bssid
);
1930 clear_state_mismatch(drv
, drv
->bssid
);
1937 static void wpa_scan_results_free(struct wpa_scan_results
*res
)
1944 for (i
= 0; i
< res
->num
; i
++)
1945 os_free(res
->res
[i
]);
1951 static struct wpa_scan_results
*
1952 nl80211_get_scan_results(struct wpa_driver_nl80211_data
*drv
)
1955 struct wpa_scan_results
*res
;
1957 struct nl80211_bss_info_arg arg
;
1959 res
= os_zalloc(sizeof(*res
));
1962 msg
= nlmsg_alloc();
1964 goto nla_put_failure
;
1966 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0, NLM_F_DUMP
,
1967 NL80211_CMD_GET_SCAN
, 0);
1968 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, drv
->ifindex
);
1972 ret
= send_and_recv_msgs(drv
, msg
, bss_info_handler
, &arg
);
1975 wpa_printf(MSG_DEBUG
, "Received scan results (%lu BSSes)",
1976 (unsigned long) res
->num
);
1979 wpa_printf(MSG_DEBUG
, "nl80211: Scan result fetch failed: ret=%d "
1980 "(%s)", ret
, strerror(-ret
));
1983 wpa_scan_results_free(res
);
1989 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results
1990 * @priv: Pointer to private wext data from wpa_driver_nl80211_init()
1991 * Returns: Scan results on success, -1 on failure
1993 static struct wpa_scan_results
*
1994 wpa_driver_nl80211_get_scan_results(void *priv
)
1996 struct i802_bss
*bss
= priv
;
1997 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
1998 struct wpa_scan_results
*res
;
2000 res
= nl80211_get_scan_results(drv
);
2002 wpa_driver_nl80211_check_bss_status(drv
, res
);
2007 static void nl80211_dump_scan(struct wpa_driver_nl80211_data
*drv
)
2009 struct wpa_scan_results
*res
;
2012 res
= nl80211_get_scan_results(drv
);
2014 wpa_printf(MSG_DEBUG
, "nl80211: Failed to get scan results");
2018 wpa_printf(MSG_DEBUG
, "nl80211: Scan result dump");
2019 for (i
= 0; i
< res
->num
; i
++) {
2020 struct wpa_scan_res
*r
= res
->res
[i
];
2021 wpa_printf(MSG_DEBUG
, "nl80211: %d/%d " MACSTR
"%s%s",
2022 (int) i
, (int) res
->num
, MAC2STR(r
->bssid
),
2023 r
->flags
& WPA_SCAN_AUTHENTICATED
? " [auth]" : "",
2024 r
->flags
& WPA_SCAN_ASSOCIATED
? " [assoc]" : "");
2027 wpa_scan_results_free(res
);
2031 static int wpa_driver_nl80211_set_key(const char *ifname
, void *priv
,
2032 enum wpa_alg alg
, const u8
*addr
,
2033 int key_idx
, int set_tx
,
2034 const u8
*seq
, size_t seq_len
,
2035 const u8
*key
, size_t key_len
)
2037 struct i802_bss
*bss
= priv
;
2038 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
2039 int ifindex
= if_nametoindex(ifname
);
2043 wpa_printf(MSG_DEBUG
, "%s: ifindex=%d alg=%d addr=%p key_idx=%d "
2044 "set_tx=%d seq_len=%lu key_len=%lu",
2045 __func__
, ifindex
, alg
, addr
, key_idx
, set_tx
,
2046 (unsigned long) seq_len
, (unsigned long) key_len
);
2048 msg
= nlmsg_alloc();
2052 if (alg
== WPA_ALG_NONE
) {
2053 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0,
2054 0, NL80211_CMD_DEL_KEY
, 0);
2056 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0,
2057 0, NL80211_CMD_NEW_KEY
, 0);
2058 NLA_PUT(msg
, NL80211_ATTR_KEY_DATA
, key_len
, key
);
2062 NLA_PUT_U32(msg
, NL80211_ATTR_KEY_CIPHER
,
2063 WLAN_CIPHER_SUITE_WEP40
);
2065 NLA_PUT_U32(msg
, NL80211_ATTR_KEY_CIPHER
,
2066 WLAN_CIPHER_SUITE_WEP104
);
2069 NLA_PUT_U32(msg
, NL80211_ATTR_KEY_CIPHER
,
2070 WLAN_CIPHER_SUITE_TKIP
);
2073 NLA_PUT_U32(msg
, NL80211_ATTR_KEY_CIPHER
,
2074 WLAN_CIPHER_SUITE_CCMP
);
2077 NLA_PUT_U32(msg
, NL80211_ATTR_KEY_CIPHER
,
2078 WLAN_CIPHER_SUITE_AES_CMAC
);
2081 wpa_printf(MSG_ERROR
, "%s: Unsupported encryption "
2082 "algorithm %d", __func__
, alg
);
2089 NLA_PUT(msg
, NL80211_ATTR_KEY_SEQ
, seq_len
, seq
);
2091 if (addr
&& os_memcmp(addr
, "\xff\xff\xff\xff\xff\xff", ETH_ALEN
) != 0)
2093 wpa_printf(MSG_DEBUG
, " addr=" MACSTR
, MAC2STR(addr
));
2094 NLA_PUT(msg
, NL80211_ATTR_MAC
, ETH_ALEN
, addr
);
2096 NLA_PUT_U8(msg
, NL80211_ATTR_KEY_IDX
, key_idx
);
2097 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, ifindex
);
2099 ret
= send_and_recv_msgs(drv
, msg
, NULL
, NULL
);
2100 if ((ret
== -ENOENT
|| ret
== -ENOLINK
) && alg
== WPA_ALG_NONE
)
2103 wpa_printf(MSG_DEBUG
, "nl80211: set_key failed; err=%d %s)",
2104 ret
, strerror(-ret
));
2107 * If we failed or don't need to set the default TX key (below),
2110 if (ret
|| !set_tx
|| alg
== WPA_ALG_NONE
)
2116 if (drv
->nlmode
== NL80211_IFTYPE_AP
&& addr
)
2118 #endif /* HOSTAPD */
2120 msg
= nlmsg_alloc();
2124 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0,
2125 0, NL80211_CMD_SET_KEY
, 0);
2126 NLA_PUT_U8(msg
, NL80211_ATTR_KEY_IDX
, key_idx
);
2127 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, ifindex
);
2128 if (alg
== WPA_ALG_IGTK
)
2129 NLA_PUT_FLAG(msg
, NL80211_ATTR_KEY_DEFAULT_MGMT
);
2131 NLA_PUT_FLAG(msg
, NL80211_ATTR_KEY_DEFAULT
);
2133 ret
= send_and_recv_msgs(drv
, msg
, NULL
, NULL
);
2137 wpa_printf(MSG_DEBUG
, "nl80211: set_key default failed; "
2138 "err=%d %s)", ret
, strerror(-ret
));
2146 static int nl_add_key(struct nl_msg
*msg
, enum wpa_alg alg
,
2147 int key_idx
, int defkey
,
2148 const u8
*seq
, size_t seq_len
,
2149 const u8
*key
, size_t key_len
)
2151 struct nlattr
*key_attr
= nla_nest_start(msg
, NL80211_ATTR_KEY
);
2155 if (defkey
&& alg
== WPA_ALG_IGTK
)
2156 NLA_PUT_FLAG(msg
, NL80211_KEY_DEFAULT_MGMT
);
2158 NLA_PUT_FLAG(msg
, NL80211_KEY_DEFAULT
);
2160 NLA_PUT_U8(msg
, NL80211_KEY_IDX
, key_idx
);
2165 NLA_PUT_U32(msg
, NL80211_KEY_CIPHER
,
2166 WLAN_CIPHER_SUITE_WEP40
);
2168 NLA_PUT_U32(msg
, NL80211_KEY_CIPHER
,
2169 WLAN_CIPHER_SUITE_WEP104
);
2172 NLA_PUT_U32(msg
, NL80211_KEY_CIPHER
, WLAN_CIPHER_SUITE_TKIP
);
2175 NLA_PUT_U32(msg
, NL80211_KEY_CIPHER
, WLAN_CIPHER_SUITE_CCMP
);
2178 NLA_PUT_U32(msg
, NL80211_KEY_CIPHER
,
2179 WLAN_CIPHER_SUITE_AES_CMAC
);
2182 wpa_printf(MSG_ERROR
, "%s: Unsupported encryption "
2183 "algorithm %d", __func__
, alg
);
2188 NLA_PUT(msg
, NL80211_KEY_SEQ
, seq_len
, seq
);
2190 NLA_PUT(msg
, NL80211_KEY_DATA
, key_len
, key
);
2192 nla_nest_end(msg
, key_attr
);
2200 static int nl80211_set_conn_keys(struct wpa_driver_associate_params
*params
,
2204 struct nlattr
*nl_keys
, *nl_key
;
2206 for (i
= 0; i
< 4; i
++) {
2207 if (!params
->wep_key
[i
])
2215 NLA_PUT_FLAG(msg
, NL80211_ATTR_PRIVACY
);
2217 nl_keys
= nla_nest_start(msg
, NL80211_ATTR_KEYS
);
2219 goto nla_put_failure
;
2221 for (i
= 0; i
< 4; i
++) {
2222 if (!params
->wep_key
[i
])
2225 nl_key
= nla_nest_start(msg
, i
);
2227 goto nla_put_failure
;
2229 NLA_PUT(msg
, NL80211_KEY_DATA
, params
->wep_key_len
[i
],
2230 params
->wep_key
[i
]);
2231 if (params
->wep_key_len
[i
] == 5)
2232 NLA_PUT_U32(msg
, NL80211_KEY_CIPHER
,
2233 WLAN_CIPHER_SUITE_WEP40
);
2235 NLA_PUT_U32(msg
, NL80211_KEY_CIPHER
,
2236 WLAN_CIPHER_SUITE_WEP104
);
2238 NLA_PUT_U8(msg
, NL80211_KEY_IDX
, i
);
2240 if (i
== params
->wep_tx_keyidx
)
2241 NLA_PUT_FLAG(msg
, NL80211_KEY_DEFAULT
);
2243 nla_nest_end(msg
, nl_key
);
2245 nla_nest_end(msg
, nl_keys
);
2254 static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data
*drv
,
2255 const u8
*addr
, int cmd
, u16 reason_code
,
2256 int local_state_change
)
2261 msg
= nlmsg_alloc();
2265 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0, 0, cmd
, 0);
2267 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, drv
->ifindex
);
2268 NLA_PUT_U16(msg
, NL80211_ATTR_REASON_CODE
, reason_code
);
2269 NLA_PUT(msg
, NL80211_ATTR_MAC
, ETH_ALEN
, addr
);
2270 if (local_state_change
)
2271 NLA_PUT_FLAG(msg
, NL80211_ATTR_LOCAL_STATE_CHANGE
);
2273 ret
= send_and_recv_msgs(drv
, msg
, NULL
, NULL
);
2276 wpa_printf(MSG_DEBUG
, "nl80211: MLME command failed: ret=%d "
2277 "(%s)", ret
, strerror(-ret
));
2278 goto nla_put_failure
;
2288 static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data
*drv
,
2289 const u8
*addr
, int reason_code
)
2291 wpa_printf(MSG_DEBUG
, "%s", __func__
);
2292 drv
->associated
= 0;
2293 return wpa_driver_nl80211_mlme(drv
, addr
, NL80211_CMD_DISCONNECT
,
2298 static int wpa_driver_nl80211_deauthenticate(void *priv
, const u8
*addr
,
2301 struct i802_bss
*bss
= priv
;
2302 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
2303 if (!(drv
->capa
.flags
& WPA_DRIVER_FLAGS_SME
))
2304 return wpa_driver_nl80211_disconnect(drv
, addr
, reason_code
);
2305 wpa_printf(MSG_DEBUG
, "%s", __func__
);
2306 drv
->associated
= 0;
2307 return wpa_driver_nl80211_mlme(drv
, addr
, NL80211_CMD_DEAUTHENTICATE
,
2312 static int wpa_driver_nl80211_disassociate(void *priv
, const u8
*addr
,
2315 struct i802_bss
*bss
= priv
;
2316 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
2317 if (!(drv
->capa
.flags
& WPA_DRIVER_FLAGS_SME
))
2318 return wpa_driver_nl80211_disconnect(drv
, addr
, reason_code
);
2319 wpa_printf(MSG_DEBUG
, "%s", __func__
);
2320 drv
->associated
= 0;
2321 return wpa_driver_nl80211_mlme(drv
, addr
, NL80211_CMD_DISASSOCIATE
,
2326 static int wpa_driver_nl80211_authenticate(
2327 void *priv
, struct wpa_driver_auth_params
*params
)
2329 struct i802_bss
*bss
= priv
;
2330 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
2333 enum nl80211_auth_type type
;
2336 drv
->associated
= 0;
2337 os_memset(drv
->auth_bssid
, 0, ETH_ALEN
);
2338 /* FIX: IBSS mode */
2339 if (drv
->nlmode
!= NL80211_IFTYPE_STATION
)
2340 wpa_driver_nl80211_set_mode(priv
, IEEE80211_MODE_INFRA
);
2342 if (wpa_driver_nl80211_set_mode(priv
, IEEE80211_MODE_INFRA
) < 0)
2346 msg
= nlmsg_alloc();
2350 wpa_printf(MSG_DEBUG
, "nl80211: Authenticate (ifindex=%d)",
2353 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0, 0,
2354 NL80211_CMD_AUTHENTICATE
, 0);
2356 for (i
= 0; i
< 4; i
++) {
2357 if (!params
->wep_key
[i
])
2359 wpa_driver_nl80211_set_key(bss
->ifname
, priv
, WPA_ALG_WEP
,
2361 i
== params
->wep_tx_keyidx
, NULL
, 0,
2363 params
->wep_key_len
[i
]);
2364 if (params
->wep_tx_keyidx
!= i
)
2366 if (nl_add_key(msg
, WPA_ALG_WEP
, i
, 1, NULL
, 0,
2367 params
->wep_key
[i
], params
->wep_key_len
[i
])) {
2373 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, drv
->ifindex
);
2374 if (params
->bssid
) {
2375 wpa_printf(MSG_DEBUG
, " * bssid=" MACSTR
,
2376 MAC2STR(params
->bssid
));
2377 NLA_PUT(msg
, NL80211_ATTR_MAC
, ETH_ALEN
, params
->bssid
);
2380 wpa_printf(MSG_DEBUG
, " * freq=%d", params
->freq
);
2381 NLA_PUT_U32(msg
, NL80211_ATTR_WIPHY_FREQ
, params
->freq
);
2384 wpa_hexdump_ascii(MSG_DEBUG
, " * SSID",
2385 params
->ssid
, params
->ssid_len
);
2386 NLA_PUT(msg
, NL80211_ATTR_SSID
, params
->ssid_len
,
2389 wpa_hexdump(MSG_DEBUG
, " * IEs", params
->ie
, params
->ie_len
);
2391 NLA_PUT(msg
, NL80211_ATTR_IE
, params
->ie_len
, params
->ie
);
2393 * TODO: if multiple auth_alg options enabled, try them one by one if
2394 * the AP rejects authentication due to unknown auth alg
2396 if (params
->auth_alg
& WPA_AUTH_ALG_OPEN
)
2397 type
= NL80211_AUTHTYPE_OPEN_SYSTEM
;
2398 else if (params
->auth_alg
& WPA_AUTH_ALG_SHARED
)
2399 type
= NL80211_AUTHTYPE_SHARED_KEY
;
2400 else if (params
->auth_alg
& WPA_AUTH_ALG_LEAP
)
2401 type
= NL80211_AUTHTYPE_NETWORK_EAP
;
2402 else if (params
->auth_alg
& WPA_AUTH_ALG_FT
)
2403 type
= NL80211_AUTHTYPE_FT
;
2405 goto nla_put_failure
;
2406 wpa_printf(MSG_DEBUG
, " * Auth Type %d", type
);
2407 NLA_PUT_U32(msg
, NL80211_ATTR_AUTH_TYPE
, type
);
2408 if (params
->local_state_change
) {
2409 wpa_printf(MSG_DEBUG
, " * Local state change only");
2410 NLA_PUT_FLAG(msg
, NL80211_ATTR_LOCAL_STATE_CHANGE
);
2413 ret
= send_and_recv_msgs(drv
, msg
, NULL
, NULL
);
2416 wpa_printf(MSG_DEBUG
, "nl80211: MLME command failed: ret=%d "
2417 "(%s)", ret
, strerror(-ret
));
2419 if (ret
== -EALREADY
&& count
== 1 && params
->bssid
&&
2420 !params
->local_state_change
) {
2422 * mac80211 does not currently accept new
2423 * authentication if we are already authenticated. As a
2424 * workaround, force deauthentication and try again.
2426 wpa_printf(MSG_DEBUG
, "nl80211: Retry authentication "
2427 "after forced deauthentication");
2428 wpa_driver_nl80211_deauthenticate(
2430 WLAN_REASON_PREV_AUTH_NOT_VALID
);
2434 goto nla_put_failure
;
2437 wpa_printf(MSG_DEBUG
, "nl80211: Authentication request send "
2446 struct phy_info_arg
{
2448 struct hostapd_hw_modes
*modes
;
2451 static int phy_info_handler(struct nl_msg
*msg
, void *arg
)
2453 struct nlattr
*tb_msg
[NL80211_ATTR_MAX
+ 1];
2454 struct genlmsghdr
*gnlh
= nlmsg_data(nlmsg_hdr(msg
));
2455 struct phy_info_arg
*phy_info
= arg
;
2457 struct nlattr
*tb_band
[NL80211_BAND_ATTR_MAX
+ 1];
2459 struct nlattr
*tb_freq
[NL80211_FREQUENCY_ATTR_MAX
+ 1];
2460 static struct nla_policy freq_policy
[NL80211_FREQUENCY_ATTR_MAX
+ 1] = {
2461 [NL80211_FREQUENCY_ATTR_FREQ
] = { .type
= NLA_U32
},
2462 [NL80211_FREQUENCY_ATTR_DISABLED
] = { .type
= NLA_FLAG
},
2463 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN
] = { .type
= NLA_FLAG
},
2464 [NL80211_FREQUENCY_ATTR_NO_IBSS
] = { .type
= NLA_FLAG
},
2465 [NL80211_FREQUENCY_ATTR_RADAR
] = { .type
= NLA_FLAG
},
2466 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER
] = { .type
= NLA_U32
},
2469 struct nlattr
*tb_rate
[NL80211_BITRATE_ATTR_MAX
+ 1];
2470 static struct nla_policy rate_policy
[NL80211_BITRATE_ATTR_MAX
+ 1] = {
2471 [NL80211_BITRATE_ATTR_RATE
] = { .type
= NLA_U32
},
2472 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE
] = { .type
= NLA_FLAG
},
2475 struct nlattr
*nl_band
;
2476 struct nlattr
*nl_freq
;
2477 struct nlattr
*nl_rate
;
2478 int rem_band
, rem_freq
, rem_rate
;
2479 struct hostapd_hw_modes
*mode
;
2480 int idx
, mode_is_set
;
2482 nla_parse(tb_msg
, NL80211_ATTR_MAX
, genlmsg_attrdata(gnlh
, 0),
2483 genlmsg_attrlen(gnlh
, 0), NULL
);
2485 if (!tb_msg
[NL80211_ATTR_WIPHY_BANDS
])
2488 nla_for_each_nested(nl_band
, tb_msg
[NL80211_ATTR_WIPHY_BANDS
], rem_band
) {
2489 mode
= os_realloc(phy_info
->modes
, (*phy_info
->num_modes
+ 1) * sizeof(*mode
));
2492 phy_info
->modes
= mode
;
2496 mode
= &phy_info
->modes
[*(phy_info
->num_modes
)];
2497 memset(mode
, 0, sizeof(*mode
));
2498 *(phy_info
->num_modes
) += 1;
2500 nla_parse(tb_band
, NL80211_BAND_ATTR_MAX
, nla_data(nl_band
),
2501 nla_len(nl_band
), NULL
);
2503 if (tb_band
[NL80211_BAND_ATTR_HT_CAPA
]) {
2504 mode
->ht_capab
= nla_get_u16(
2505 tb_band
[NL80211_BAND_ATTR_HT_CAPA
]);
2508 if (tb_band
[NL80211_BAND_ATTR_HT_AMPDU_FACTOR
]) {
2509 mode
->a_mpdu_params
|= nla_get_u8(
2510 tb_band
[NL80211_BAND_ATTR_HT_AMPDU_FACTOR
]) &
2514 if (tb_band
[NL80211_BAND_ATTR_HT_AMPDU_DENSITY
]) {
2515 mode
->a_mpdu_params
|= nla_get_u8(
2516 tb_band
[NL80211_BAND_ATTR_HT_AMPDU_DENSITY
]) <<
2520 if (tb_band
[NL80211_BAND_ATTR_HT_MCS_SET
] &&
2521 nla_len(tb_band
[NL80211_BAND_ATTR_HT_MCS_SET
])) {
2523 mcs
= nla_data(tb_band
[NL80211_BAND_ATTR_HT_MCS_SET
]);
2524 os_memcpy(mode
->mcs_set
, mcs
, 16);
2527 nla_for_each_nested(nl_freq
, tb_band
[NL80211_BAND_ATTR_FREQS
], rem_freq
) {
2528 nla_parse(tb_freq
, NL80211_FREQUENCY_ATTR_MAX
, nla_data(nl_freq
),
2529 nla_len(nl_freq
), freq_policy
);
2530 if (!tb_freq
[NL80211_FREQUENCY_ATTR_FREQ
])
2532 mode
->num_channels
++;
2535 mode
->channels
= os_zalloc(mode
->num_channels
* sizeof(struct hostapd_channel_data
));
2536 if (!mode
->channels
)
2541 nla_for_each_nested(nl_freq
, tb_band
[NL80211_BAND_ATTR_FREQS
], rem_freq
) {
2542 nla_parse(tb_freq
, NL80211_FREQUENCY_ATTR_MAX
, nla_data(nl_freq
),
2543 nla_len(nl_freq
), freq_policy
);
2544 if (!tb_freq
[NL80211_FREQUENCY_ATTR_FREQ
])
2547 mode
->channels
[idx
].freq
= nla_get_u32(tb_freq
[NL80211_FREQUENCY_ATTR_FREQ
]);
2548 mode
->channels
[idx
].flag
= 0;
2551 /* crude heuristic */
2552 if (mode
->channels
[idx
].freq
< 4000)
2553 mode
->mode
= HOSTAPD_MODE_IEEE80211B
;
2555 mode
->mode
= HOSTAPD_MODE_IEEE80211A
;
2559 /* crude heuristic */
2560 if (mode
->channels
[idx
].freq
< 4000)
2561 if (mode
->channels
[idx
].freq
== 2484)
2562 mode
->channels
[idx
].chan
= 14;
2564 mode
->channels
[idx
].chan
= (mode
->channels
[idx
].freq
- 2407) / 5;
2566 mode
->channels
[idx
].chan
= mode
->channels
[idx
].freq
/5 - 1000;
2568 if (tb_freq
[NL80211_FREQUENCY_ATTR_DISABLED
])
2569 mode
->channels
[idx
].flag
|=
2570 HOSTAPD_CHAN_DISABLED
;
2571 if (tb_freq
[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN
])
2572 mode
->channels
[idx
].flag
|=
2573 HOSTAPD_CHAN_PASSIVE_SCAN
;
2574 if (tb_freq
[NL80211_FREQUENCY_ATTR_NO_IBSS
])
2575 mode
->channels
[idx
].flag
|=
2576 HOSTAPD_CHAN_NO_IBSS
;
2577 if (tb_freq
[NL80211_FREQUENCY_ATTR_RADAR
])
2578 mode
->channels
[idx
].flag
|=
2581 if (tb_freq
[NL80211_FREQUENCY_ATTR_MAX_TX_POWER
] &&
2582 !tb_freq
[NL80211_FREQUENCY_ATTR_DISABLED
])
2583 mode
->channels
[idx
].max_tx_power
=
2584 nla_get_u32(tb_freq
[NL80211_FREQUENCY_ATTR_MAX_TX_POWER
]) / 100;
2589 nla_for_each_nested(nl_rate
, tb_band
[NL80211_BAND_ATTR_RATES
], rem_rate
) {
2590 nla_parse(tb_rate
, NL80211_BITRATE_ATTR_MAX
, nla_data(nl_rate
),
2591 nla_len(nl_rate
), rate_policy
);
2592 if (!tb_rate
[NL80211_BITRATE_ATTR_RATE
])
2597 mode
->rates
= os_zalloc(mode
->num_rates
* sizeof(int));
2603 nla_for_each_nested(nl_rate
, tb_band
[NL80211_BAND_ATTR_RATES
], rem_rate
) {
2604 nla_parse(tb_rate
, NL80211_BITRATE_ATTR_MAX
, nla_data(nl_rate
),
2605 nla_len(nl_rate
), rate_policy
);
2606 if (!tb_rate
[NL80211_BITRATE_ATTR_RATE
])
2608 mode
->rates
[idx
] = nla_get_u32(tb_rate
[NL80211_BITRATE_ATTR_RATE
]);
2610 /* crude heuristic */
2611 if (mode
->mode
== HOSTAPD_MODE_IEEE80211B
&&
2612 mode
->rates
[idx
] > 200)
2613 mode
->mode
= HOSTAPD_MODE_IEEE80211G
;
2622 static struct hostapd_hw_modes
*
2623 wpa_driver_nl80211_add_11b(struct hostapd_hw_modes
*modes
, u16
*num_modes
)
2626 struct hostapd_hw_modes
*mode11g
= NULL
, *nmodes
, *mode
;
2627 int i
, mode11g_idx
= -1;
2629 /* If only 802.11g mode is included, use it to construct matching
2630 * 802.11b mode data. */
2632 for (m
= 0; m
< *num_modes
; m
++) {
2633 if (modes
[m
].mode
== HOSTAPD_MODE_IEEE80211B
)
2634 return modes
; /* 802.11b already included */
2635 if (modes
[m
].mode
== HOSTAPD_MODE_IEEE80211G
)
2639 if (mode11g_idx
< 0)
2640 return modes
; /* 2.4 GHz band not supported at all */
2642 nmodes
= os_realloc(modes
, (*num_modes
+ 1) * sizeof(*nmodes
));
2644 return modes
; /* Could not add 802.11b mode */
2646 mode
= &nmodes
[*num_modes
];
2647 os_memset(mode
, 0, sizeof(*mode
));
2651 mode
->mode
= HOSTAPD_MODE_IEEE80211B
;
2653 mode11g
= &modes
[mode11g_idx
];
2654 mode
->num_channels
= mode11g
->num_channels
;
2655 mode
->channels
= os_malloc(mode11g
->num_channels
*
2656 sizeof(struct hostapd_channel_data
));
2657 if (mode
->channels
== NULL
) {
2659 return modes
; /* Could not add 802.11b mode */
2661 os_memcpy(mode
->channels
, mode11g
->channels
,
2662 mode11g
->num_channels
* sizeof(struct hostapd_channel_data
));
2664 mode
->num_rates
= 0;
2665 mode
->rates
= os_malloc(4 * sizeof(int));
2666 if (mode
->rates
== NULL
) {
2667 os_free(mode
->channels
);
2669 return modes
; /* Could not add 802.11b mode */
2672 for (i
= 0; i
< mode11g
->num_rates
; i
++) {
2673 if (mode11g
->rates
[i
] != 10 && mode11g
->rates
[i
] != 20 &&
2674 mode11g
->rates
[i
] != 55 && mode11g
->rates
[i
] != 110)
2676 mode
->rates
[mode
->num_rates
] = mode11g
->rates
[i
];
2678 if (mode
->num_rates
== 4)
2682 if (mode
->num_rates
== 0) {
2683 os_free(mode
->channels
);
2684 os_free(mode
->rates
);
2686 return modes
; /* No 802.11b rates */
2689 wpa_printf(MSG_DEBUG
, "nl80211: Added 802.11b mode based on 802.11g "
2696 static struct hostapd_hw_modes
*
2697 wpa_driver_nl80211_get_hw_feature_data(void *priv
, u16
*num_modes
, u16
*flags
)
2699 struct i802_bss
*bss
= priv
;
2700 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
2702 struct phy_info_arg result
= {
2703 .num_modes
= num_modes
,
2710 msg
= nlmsg_alloc();
2714 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0,
2715 0, NL80211_CMD_GET_WIPHY
, 0);
2717 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, drv
->ifindex
);
2719 if (send_and_recv_msgs(drv
, msg
, phy_info_handler
, &result
) == 0)
2720 return wpa_driver_nl80211_add_11b(result
.modes
, num_modes
);
2726 static int wpa_driver_nl80211_send_frame(struct wpa_driver_nl80211_data
*drv
,
2727 const void *data
, size_t len
,
2731 0x00, 0x00, /* radiotap version */
2732 0x0e, 0x00, /* radiotap length */
2733 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */
2734 IEEE80211_RADIOTAP_F_FRAG
, /* F_FRAG (fragment if required) */
2736 0x00, 0x00, /* RX and TX flags to indicate that */
2737 0x00, 0x00, /* this is the injected frame directly */
2739 struct iovec iov
[2] = {
2741 .iov_base
= &rtap_hdr
,
2742 .iov_len
= sizeof(rtap_hdr
),
2745 .iov_base
= (void *) data
,
2749 struct msghdr msg
= {
2754 .msg_control
= NULL
,
2755 .msg_controllen
= 0,
2760 rtap_hdr
[8] |= IEEE80211_RADIOTAP_F_WEP
;
2762 return sendmsg(drv
->monitor_sock
, &msg
, 0);
2766 static int wpa_driver_nl80211_send_mlme(void *priv
, const u8
*data
,
2769 struct i802_bss
*bss
= priv
;
2770 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
2771 struct ieee80211_mgmt
*mgmt
;
2775 mgmt
= (struct ieee80211_mgmt
*) data
;
2776 fc
= le_to_host16(mgmt
->frame_control
);
2778 if (WLAN_FC_GET_TYPE(fc
) == WLAN_FC_TYPE_MGMT
&&
2779 WLAN_FC_GET_STYPE(fc
) == WLAN_FC_STYPE_AUTH
) {
2781 * Only one of the authentication frame types is encrypted.
2782 * In order for static WEP encryption to work properly (i.e.,
2783 * to not encrypt the frame), we need to tell mac80211 about
2784 * the frames that must not be encrypted.
2786 u16 auth_alg
= le_to_host16(mgmt
->u
.auth
.auth_alg
);
2787 u16 auth_trans
= le_to_host16(mgmt
->u
.auth
.auth_transaction
);
2788 if (auth_alg
!= WLAN_AUTH_SHARED_KEY
|| auth_trans
!= 3)
2792 return wpa_driver_nl80211_send_frame(drv
, data
, data_len
, encrypt
);
2796 static int wpa_driver_nl80211_set_beacon(void *priv
,
2797 const u8
*head
, size_t head_len
,
2798 const u8
*tail
, size_t tail_len
,
2799 int dtim_period
, int beacon_int
)
2801 struct i802_bss
*bss
= priv
;
2802 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
2804 u8 cmd
= NL80211_CMD_NEW_BEACON
;
2807 int ifindex
= if_nametoindex(bss
->ifname
);
2809 beacon_set
= bss
->beacon_set
;
2811 msg
= nlmsg_alloc();
2815 wpa_printf(MSG_DEBUG
, "nl80211: Set beacon (beacon_set=%d)",
2818 cmd
= NL80211_CMD_SET_BEACON
;
2820 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0,
2822 NLA_PUT(msg
, NL80211_ATTR_BEACON_HEAD
, head_len
, head
);
2823 NLA_PUT(msg
, NL80211_ATTR_BEACON_TAIL
, tail_len
, tail
);
2824 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, ifindex
);
2825 NLA_PUT_U32(msg
, NL80211_ATTR_BEACON_INTERVAL
, beacon_int
);
2826 NLA_PUT_U32(msg
, NL80211_ATTR_DTIM_PERIOD
, dtim_period
);
2828 ret
= send_and_recv_msgs(drv
, msg
, NULL
, NULL
);
2830 wpa_printf(MSG_DEBUG
, "nl80211: Beacon set failed: %d (%s)",
2831 ret
, strerror(-ret
));
2833 bss
->beacon_set
= 1;
2841 static int wpa_driver_nl80211_set_freq(struct wpa_driver_nl80211_data
*drv
,
2842 int freq
, int ht_enabled
,
2843 int sec_channel_offset
)
2848 msg
= nlmsg_alloc();
2852 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0, 0,
2853 NL80211_CMD_SET_WIPHY
, 0);
2855 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, drv
->ifindex
);
2856 NLA_PUT_U32(msg
, NL80211_ATTR_WIPHY_FREQ
, freq
);
2858 switch (sec_channel_offset
) {
2860 NLA_PUT_U32(msg
, NL80211_ATTR_WIPHY_CHANNEL_TYPE
,
2861 NL80211_CHAN_HT40MINUS
);
2864 NLA_PUT_U32(msg
, NL80211_ATTR_WIPHY_CHANNEL_TYPE
,
2865 NL80211_CHAN_HT40PLUS
);
2868 NLA_PUT_U32(msg
, NL80211_ATTR_WIPHY_CHANNEL_TYPE
,
2874 ret
= send_and_recv_msgs(drv
, msg
, NULL
, NULL
);
2877 wpa_printf(MSG_DEBUG
, "nl80211: Failed to set channel (freq=%d): "
2878 "%d (%s)", freq
, ret
, strerror(-ret
));
2884 static int wpa_driver_nl80211_sta_add(void *priv
,
2885 struct hostapd_sta_add_params
*params
)
2887 struct i802_bss
*bss
= priv
;
2888 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
2892 msg
= nlmsg_alloc();
2896 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0,
2897 0, NL80211_CMD_NEW_STATION
, 0);
2899 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, if_nametoindex(bss
->ifname
));
2900 NLA_PUT(msg
, NL80211_ATTR_MAC
, ETH_ALEN
, params
->addr
);
2901 NLA_PUT_U16(msg
, NL80211_ATTR_STA_AID
, params
->aid
);
2902 NLA_PUT(msg
, NL80211_ATTR_STA_SUPPORTED_RATES
, params
->supp_rates_len
,
2903 params
->supp_rates
);
2904 NLA_PUT_U16(msg
, NL80211_ATTR_STA_LISTEN_INTERVAL
,
2905 params
->listen_interval
);
2906 if (params
->ht_capabilities
) {
2907 NLA_PUT(msg
, NL80211_ATTR_HT_CAPABILITY
,
2908 sizeof(*params
->ht_capabilities
),
2909 params
->ht_capabilities
);
2912 ret
= send_and_recv_msgs(drv
, msg
, NULL
, NULL
);
2914 wpa_printf(MSG_DEBUG
, "nl80211: NL80211_CMD_NEW_STATION "
2915 "result: %d (%s)", ret
, strerror(-ret
));
2923 static int wpa_driver_nl80211_sta_remove(void *priv
, const u8
*addr
)
2925 struct i802_bss
*bss
= priv
;
2926 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
2930 msg
= nlmsg_alloc();
2934 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0,
2935 0, NL80211_CMD_DEL_STATION
, 0);
2937 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
,
2938 if_nametoindex(bss
->ifname
));
2939 NLA_PUT(msg
, NL80211_ATTR_MAC
, ETH_ALEN
, addr
);
2941 ret
= send_and_recv_msgs(drv
, msg
, NULL
, NULL
);
2950 static void nl80211_remove_iface(struct wpa_driver_nl80211_data
*drv
,
2955 wpa_printf(MSG_DEBUG
, "nl80211: Remove interface ifindex=%d", ifidx
);
2958 /* stop listening for EAPOL on this interface */
2959 del_ifidx(drv
, ifidx
);
2960 #endif /* HOSTAPD */
2962 msg
= nlmsg_alloc();
2964 goto nla_put_failure
;
2966 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0,
2967 0, NL80211_CMD_DEL_INTERFACE
, 0);
2968 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, ifidx
);
2970 if (send_and_recv_msgs(drv
, msg
, NULL
, NULL
) == 0)
2973 wpa_printf(MSG_ERROR
, "Failed to remove interface (ifidx=%d)", ifidx
);
2977 static int nl80211_create_iface_once(struct wpa_driver_nl80211_data
*drv
,
2979 enum nl80211_iftype iftype
,
2980 const u8
*addr
, int wds
)
2982 struct nl_msg
*msg
, *flags
= NULL
;
2986 msg
= nlmsg_alloc();
2990 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0,
2991 0, NL80211_CMD_NEW_INTERFACE
, 0);
2992 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, drv
->ifindex
);
2993 NLA_PUT_STRING(msg
, NL80211_ATTR_IFNAME
, ifname
);
2994 NLA_PUT_U32(msg
, NL80211_ATTR_IFTYPE
, iftype
);
2996 if (iftype
== NL80211_IFTYPE_MONITOR
) {
2999 flags
= nlmsg_alloc();
3001 goto nla_put_failure
;
3003 NLA_PUT_FLAG(flags
, NL80211_MNTR_FLAG_COOK_FRAMES
);
3005 err
= nla_put_nested(msg
, NL80211_ATTR_MNTR_FLAGS
, flags
);
3010 goto nla_put_failure
;
3012 NLA_PUT_U8(msg
, NL80211_ATTR_4ADDR
, wds
);
3015 ret
= send_and_recv_msgs(drv
, msg
, NULL
, NULL
);
3018 wpa_printf(MSG_ERROR
, "Failed to create interface %s: %d (%s)",
3019 ifname
, ret
, strerror(-ret
));
3023 ifidx
= if_nametoindex(ifname
);
3024 wpa_printf(MSG_DEBUG
, "nl80211: New interface %s created: ifindex=%d",
3031 /* start listening for EAPOL on this interface */
3032 add_ifidx(drv
, ifidx
);
3033 #endif /* HOSTAPD */
3035 if (addr
&& iftype
!= NL80211_IFTYPE_MONITOR
&&
3036 linux_set_ifhwaddr(drv
->ioctl_sock
, ifname
, addr
)) {
3037 nl80211_remove_iface(drv
, ifidx
);
3045 static int nl80211_create_iface(struct wpa_driver_nl80211_data
*drv
,
3046 const char *ifname
, enum nl80211_iftype iftype
,
3047 const u8
*addr
, int wds
)
3051 ret
= nl80211_create_iface_once(drv
, ifname
, iftype
, addr
, wds
);
3053 /* if error occured and interface exists already */
3054 if (ret
== -ENFILE
&& if_nametoindex(ifname
)) {
3055 wpa_printf(MSG_INFO
, "Try to remove and re-create %s", ifname
);
3057 /* Try to remove the interface that was already there. */
3058 nl80211_remove_iface(drv
, if_nametoindex(ifname
));
3060 /* Try to create the interface again */
3061 ret
= nl80211_create_iface_once(drv
, ifname
, iftype
, addr
,
3065 if (ret
>= 0 && drv
->disable_11b_rates
)
3066 nl80211_disable_11b_rates(drv
, ret
, 1);
3072 static void handle_tx_callback(void *ctx
, u8
*buf
, size_t len
, int ok
)
3074 struct ieee80211_hdr
*hdr
;
3076 union wpa_event_data event
;
3078 hdr
= (struct ieee80211_hdr
*) buf
;
3079 fc
= le_to_host16(hdr
->frame_control
);
3081 os_memset(&event
, 0, sizeof(event
));
3082 event
.tx_status
.type
= WLAN_FC_GET_TYPE(fc
);
3083 event
.tx_status
.stype
= WLAN_FC_GET_STYPE(fc
);
3084 event
.tx_status
.dst
= hdr
->addr1
;
3085 event
.tx_status
.data
= buf
;
3086 event
.tx_status
.data_len
= len
;
3087 event
.tx_status
.ack
= ok
;
3088 wpa_supplicant_event(ctx
, EVENT_TX_STATUS
, &event
);
3092 static void from_unknown_sta(struct wpa_driver_nl80211_data
*drv
,
3093 u8
*buf
, size_t len
)
3095 union wpa_event_data event
;
3096 os_memset(&event
, 0, sizeof(event
));
3097 event
.rx_from_unknown
.frame
= buf
;
3098 event
.rx_from_unknown
.len
= len
;
3099 wpa_supplicant_event(drv
->ctx
, EVENT_RX_FROM_UNKNOWN
, &event
);
3103 static void handle_frame(struct wpa_driver_nl80211_data
*drv
,
3104 u8
*buf
, size_t len
, int datarate
, int ssi_signal
)
3106 struct ieee80211_hdr
*hdr
;
3108 union wpa_event_data event
;
3110 hdr
= (struct ieee80211_hdr
*) buf
;
3111 fc
= le_to_host16(hdr
->frame_control
);
3113 switch (WLAN_FC_GET_TYPE(fc
)) {
3114 case WLAN_FC_TYPE_MGMT
:
3115 os_memset(&event
, 0, sizeof(event
));
3116 event
.rx_mgmt
.frame
= buf
;
3117 event
.rx_mgmt
.frame_len
= len
;
3118 event
.rx_mgmt
.datarate
= datarate
;
3119 event
.rx_mgmt
.ssi_signal
= ssi_signal
;
3120 wpa_supplicant_event(drv
->ctx
, EVENT_RX_MGMT
, &event
);
3122 case WLAN_FC_TYPE_CTRL
:
3123 /* can only get here with PS-Poll frames */
3124 wpa_printf(MSG_DEBUG
, "CTRL");
3125 from_unknown_sta(drv
, buf
, len
);
3127 case WLAN_FC_TYPE_DATA
:
3128 from_unknown_sta(drv
, buf
, len
);
3134 static void handle_monitor_read(int sock
, void *eloop_ctx
, void *sock_ctx
)
3136 struct wpa_driver_nl80211_data
*drv
= eloop_ctx
;
3138 unsigned char buf
[3000];
3139 struct ieee80211_radiotap_iterator iter
;
3141 int datarate
= 0, ssi_signal
= 0;
3142 int injected
= 0, failed
= 0, rxflags
= 0;
3144 len
= recv(sock
, buf
, sizeof(buf
), 0);
3150 if (drv
->nlmode
== NL80211_IFTYPE_STATION
&& !drv
->probe_req_report
) {
3151 wpa_printf(MSG_DEBUG
, "nl80211: Ignore monitor interface "
3152 "frame since Probe Request reporting is disabled");
3156 if (ieee80211_radiotap_iterator_init(&iter
, (void*)buf
, len
)) {
3157 printf("received invalid radiotap frame\n");
3162 ret
= ieee80211_radiotap_iterator_next(&iter
);
3166 printf("received invalid radiotap frame (%d)\n", ret
);
3169 switch (iter
.this_arg_index
) {
3170 case IEEE80211_RADIOTAP_FLAGS
:
3171 if (*iter
.this_arg
& IEEE80211_RADIOTAP_F_FCS
)
3174 case IEEE80211_RADIOTAP_RX_FLAGS
:
3177 case IEEE80211_RADIOTAP_TX_FLAGS
:
3179 failed
= le_to_host16((*(uint16_t *) iter
.this_arg
)) &
3180 IEEE80211_RADIOTAP_F_TX_FAIL
;
3182 case IEEE80211_RADIOTAP_DATA_RETRIES
:
3184 case IEEE80211_RADIOTAP_CHANNEL
:
3185 /* TODO: convert from freq/flags to channel number */
3187 case IEEE80211_RADIOTAP_RATE
:
3188 datarate
= *iter
.this_arg
* 5;
3190 case IEEE80211_RADIOTAP_DB_ANTSIGNAL
:
3191 ssi_signal
= *iter
.this_arg
;
3196 if (rxflags
&& injected
)
3200 handle_frame(drv
, buf
+ iter
.max_length
,
3201 len
- iter
.max_length
, datarate
, ssi_signal
);
3203 handle_tx_callback(drv
->ctx
, buf
+ iter
.max_length
,
3204 len
- iter
.max_length
, !failed
);
3209 * we post-process the filter code later and rewrite
3210 * this to the offset to the last instruction
3215 static struct sock_filter msock_filter_insns
[] = {
3217 * do a little-endian load of the radiotap length field
3219 /* load lower byte into A */
3220 BPF_STMT(BPF_LD
| BPF_B
| BPF_ABS
, 2),
3221 /* put it into X (== index register) */
3222 BPF_STMT(BPF_MISC
| BPF_TAX
, 0),
3223 /* load upper byte into A */
3224 BPF_STMT(BPF_LD
| BPF_B
| BPF_ABS
, 3),
3225 /* left-shift it by 8 */
3226 BPF_STMT(BPF_ALU
| BPF_LSH
| BPF_K
, 8),
3228 BPF_STMT(BPF_ALU
| BPF_OR
| BPF_X
, 0),
3229 /* put result into X */
3230 BPF_STMT(BPF_MISC
| BPF_TAX
, 0),
3233 * Allow management frames through, this also gives us those
3234 * management frames that we sent ourselves with status
3236 /* load the lower byte of the IEEE 802.11 frame control field */
3237 BPF_STMT(BPF_LD
| BPF_B
| BPF_IND
, 0),
3238 /* mask off frame type and version */
3239 BPF_STMT(BPF_ALU
| BPF_AND
| BPF_K
, 0xF),
3240 /* accept frame if it's both 0, fall through otherwise */
3241 BPF_JUMP(BPF_JMP
| BPF_JEQ
| BPF_K
, 0, PASS
, 0),
3244 * TODO: add a bit to radiotap RX flags that indicates
3245 * that the sending station is not associated, then
3246 * add a filter here that filters on our DA and that flag
3247 * to allow us to deauth frames to that bad station.
3249 * Not a regression -- we didn't do it before either.
3254 * drop non-data frames
3256 /* load the lower byte of the frame control field */
3257 BPF_STMT(BPF_LD
| BPF_B
| BPF_IND
, 0),
3258 /* mask off QoS bit */
3259 BPF_STMT(BPF_ALU
| BPF_AND
| BPF_K
, 0x0c),
3260 /* drop non-data frames */
3261 BPF_JUMP(BPF_JMP
| BPF_JEQ
| BPF_K
, 8, 0, FAIL
),
3263 /* load the upper byte of the frame control field */
3264 BPF_STMT(BPF_LD
| BPF_B
| BPF_IND
, 1),
3265 /* mask off toDS/fromDS */
3266 BPF_STMT(BPF_ALU
| BPF_AND
| BPF_K
, 0x03),
3267 /* accept WDS frames */
3268 BPF_JUMP(BPF_JMP
| BPF_JEQ
| BPF_K
, 3, PASS
, 0),
3271 * add header length to index
3273 /* load the lower byte of the frame control field */
3274 BPF_STMT(BPF_LD
| BPF_B
| BPF_IND
, 0),
3275 /* mask off QoS bit */
3276 BPF_STMT(BPF_ALU
| BPF_AND
| BPF_K
, 0x80),
3277 /* right shift it by 6 to give 0 or 2 */
3278 BPF_STMT(BPF_ALU
| BPF_RSH
| BPF_K
, 6),
3279 /* add data frame header length */
3280 BPF_STMT(BPF_ALU
| BPF_ADD
| BPF_K
, 24),
3281 /* add index, was start of 802.11 header */
3282 BPF_STMT(BPF_ALU
| BPF_ADD
| BPF_X
, 0),
3283 /* move to index, now start of LL header */
3284 BPF_STMT(BPF_MISC
| BPF_TAX
, 0),
3287 * Accept empty data frames, we use those for
3290 BPF_STMT(BPF_LD
| BPF_W
| BPF_LEN
, 0),
3291 BPF_JUMP(BPF_JMP
| BPF_JEQ
| BPF_X
, 0, PASS
, 0),
3294 * Accept EAPOL frames
3296 BPF_STMT(BPF_LD
| BPF_W
| BPF_IND
, 0),
3297 BPF_JUMP(BPF_JMP
| BPF_JEQ
| BPF_K
, 0xAAAA0300, 0, FAIL
),
3298 BPF_STMT(BPF_LD
| BPF_W
| BPF_IND
, 4),
3299 BPF_JUMP(BPF_JMP
| BPF_JEQ
| BPF_K
, 0x0000888E, PASS
, FAIL
),
3301 /* keep these last two statements or change the code below */
3302 /* return 0 == "DROP" */
3303 BPF_STMT(BPF_RET
| BPF_K
, 0),
3304 /* return ~0 == "keep all" */
3305 BPF_STMT(BPF_RET
| BPF_K
, ~0),
3308 static struct sock_fprog msock_filter
= {
3309 .len
= sizeof(msock_filter_insns
)/sizeof(msock_filter_insns
[0]),
3310 .filter
= msock_filter_insns
,
3314 static int add_monitor_filter(int s
)
3318 /* rewrite all PASS/FAIL jump offsets */
3319 for (idx
= 0; idx
< msock_filter
.len
; idx
++) {
3320 struct sock_filter
*insn
= &msock_filter_insns
[idx
];
3322 if (BPF_CLASS(insn
->code
) == BPF_JMP
) {
3323 if (insn
->code
== (BPF_JMP
|BPF_JA
)) {
3324 if (insn
->k
== PASS
)
3325 insn
->k
= msock_filter
.len
- idx
- 2;
3326 else if (insn
->k
== FAIL
)
3327 insn
->k
= msock_filter
.len
- idx
- 3;
3330 if (insn
->jt
== PASS
)
3331 insn
->jt
= msock_filter
.len
- idx
- 2;
3332 else if (insn
->jt
== FAIL
)
3333 insn
->jt
= msock_filter
.len
- idx
- 3;
3335 if (insn
->jf
== PASS
)
3336 insn
->jf
= msock_filter
.len
- idx
- 2;
3337 else if (insn
->jf
== FAIL
)
3338 insn
->jf
= msock_filter
.len
- idx
- 3;
3342 if (setsockopt(s
, SOL_SOCKET
, SO_ATTACH_FILTER
,
3343 &msock_filter
, sizeof(msock_filter
))) {
3344 perror("SO_ATTACH_FILTER");
3352 static void nl80211_remove_monitor_interface(
3353 struct wpa_driver_nl80211_data
*drv
)
3355 if (drv
->monitor_ifidx
>= 0) {
3356 nl80211_remove_iface(drv
, drv
->monitor_ifidx
);
3357 drv
->monitor_ifidx
= -1;
3359 if (drv
->monitor_sock
>= 0) {
3360 eloop_unregister_read_sock(drv
->monitor_sock
);
3361 close(drv
->monitor_sock
);
3362 drv
->monitor_sock
= -1;
3368 nl80211_create_monitor_interface(struct wpa_driver_nl80211_data
*drv
)
3371 struct sockaddr_ll ll
;
3375 snprintf(buf
, IFNAMSIZ
, "mon.%s", drv
->first_bss
.ifname
);
3376 buf
[IFNAMSIZ
- 1] = '\0';
3378 drv
->monitor_ifidx
=
3379 nl80211_create_iface(drv
, buf
, NL80211_IFTYPE_MONITOR
, NULL
,
3382 if (drv
->monitor_ifidx
< 0)
3385 if (linux_set_iface_flags(drv
->ioctl_sock
, buf
, 1))
3388 memset(&ll
, 0, sizeof(ll
));
3389 ll
.sll_family
= AF_PACKET
;
3390 ll
.sll_ifindex
= drv
->monitor_ifidx
;
3391 drv
->monitor_sock
= socket(PF_PACKET
, SOCK_RAW
, htons(ETH_P_ALL
));
3392 if (drv
->monitor_sock
< 0) {
3393 perror("socket[PF_PACKET,SOCK_RAW]");
3397 if (add_monitor_filter(drv
->monitor_sock
)) {
3398 wpa_printf(MSG_INFO
, "Failed to set socket filter for monitor "
3399 "interface; do filtering in user space");
3400 /* This works, but will cost in performance. */
3403 if (bind(drv
->monitor_sock
, (struct sockaddr
*) &ll
, sizeof(ll
)) < 0) {
3404 perror("monitor socket bind");
3408 optlen
= sizeof(optval
);
3411 (drv
->monitor_sock
, SOL_SOCKET
, SO_PRIORITY
, &optval
, optlen
)) {
3412 perror("Failed to set socket priority");
3416 if (eloop_register_read_sock(drv
->monitor_sock
, handle_monitor_read
,
3418 printf("Could not register monitor read socket\n");
3424 nl80211_remove_monitor_interface(drv
);
3429 static const u8 rfc1042_header
[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
3431 static int wpa_driver_nl80211_hapd_send_eapol(
3432 void *priv
, const u8
*addr
, const u8
*data
,
3433 size_t data_len
, int encrypt
, const u8
*own_addr
)
3435 struct i802_bss
*bss
= priv
;
3436 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
3437 struct ieee80211_hdr
*hdr
;
3442 int qos
= sta
->flags
& WPA_STA_WMM
;
3447 len
= sizeof(*hdr
) + (qos
? 2 : 0) + sizeof(rfc1042_header
) + 2 +
3449 hdr
= os_zalloc(len
);
3451 printf("malloc() failed for i802_send_data(len=%lu)\n",
3452 (unsigned long) len
);
3456 hdr
->frame_control
=
3457 IEEE80211_FC(WLAN_FC_TYPE_DATA
, WLAN_FC_STYPE_DATA
);
3458 hdr
->frame_control
|= host_to_le16(WLAN_FC_FROMDS
);
3460 hdr
->frame_control
|= host_to_le16(WLAN_FC_ISWEP
);
3461 #if 0 /* To be enabled if qos determination is added above */
3463 hdr
->frame_control
|=
3464 host_to_le16(WLAN_FC_STYPE_QOS_DATA
<< 4);
3468 memcpy(hdr
->IEEE80211_DA_FROMDS
, addr
, ETH_ALEN
);
3469 memcpy(hdr
->IEEE80211_BSSID_FROMDS
, own_addr
, ETH_ALEN
);
3470 memcpy(hdr
->IEEE80211_SA_FROMDS
, own_addr
, ETH_ALEN
);
3471 pos
= (u8
*) (hdr
+ 1);
3473 #if 0 /* To be enabled if qos determination is added above */
3475 /* add an empty QoS header if needed */
3482 memcpy(pos
, rfc1042_header
, sizeof(rfc1042_header
));
3483 pos
+= sizeof(rfc1042_header
);
3484 WPA_PUT_BE16(pos
, ETH_P_PAE
);
3486 memcpy(pos
, data
, data_len
);
3488 res
= wpa_driver_nl80211_send_frame(drv
, (u8
*) hdr
, len
, encrypt
);
3490 wpa_printf(MSG_ERROR
, "i802_send_eapol - packet len: %lu - "
3492 (unsigned long) len
, errno
, strerror(errno
));
3500 static u32
sta_flags_nl80211(int flags
)
3504 if (flags
& WPA_STA_AUTHORIZED
)
3505 f
|= BIT(NL80211_STA_FLAG_AUTHORIZED
);
3506 if (flags
& WPA_STA_WMM
)
3507 f
|= BIT(NL80211_STA_FLAG_WME
);
3508 if (flags
& WPA_STA_SHORT_PREAMBLE
)
3509 f
|= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE
);
3510 if (flags
& WPA_STA_MFP
)
3511 f
|= BIT(NL80211_STA_FLAG_MFP
);
3517 static int wpa_driver_nl80211_sta_set_flags(void *priv
, const u8
*addr
,
3519 int flags_or
, int flags_and
)
3521 struct i802_bss
*bss
= priv
;
3522 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
3523 struct nl_msg
*msg
, *flags
= NULL
;
3524 struct nl80211_sta_flag_update upd
;
3526 msg
= nlmsg_alloc();
3530 flags
= nlmsg_alloc();
3536 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0,
3537 0, NL80211_CMD_SET_STATION
, 0);
3539 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
,
3540 if_nametoindex(bss
->ifname
));
3541 NLA_PUT(msg
, NL80211_ATTR_MAC
, ETH_ALEN
, addr
);
3544 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This
3545 * can be removed eventually.
3547 if (total_flags
& WPA_STA_AUTHORIZED
)
3548 NLA_PUT_FLAG(flags
, NL80211_STA_FLAG_AUTHORIZED
);
3550 if (total_flags
& WPA_STA_WMM
)
3551 NLA_PUT_FLAG(flags
, NL80211_STA_FLAG_WME
);
3553 if (total_flags
& WPA_STA_SHORT_PREAMBLE
)
3554 NLA_PUT_FLAG(flags
, NL80211_STA_FLAG_SHORT_PREAMBLE
);
3556 if (total_flags
& WPA_STA_MFP
)
3557 NLA_PUT_FLAG(flags
, NL80211_STA_FLAG_MFP
);
3559 if (nla_put_nested(msg
, NL80211_ATTR_STA_FLAGS
, flags
))
3560 goto nla_put_failure
;
3562 os_memset(&upd
, 0, sizeof(upd
));
3563 upd
.mask
= sta_flags_nl80211(flags_or
| ~flags_and
);
3564 upd
.set
= sta_flags_nl80211(flags_or
);
3565 NLA_PUT(msg
, NL80211_ATTR_STA_FLAGS2
, sizeof(upd
), &upd
);
3569 return send_and_recv_msgs(drv
, msg
, NULL
, NULL
);
3576 static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data
*drv
,
3577 struct wpa_driver_associate_params
*params
)
3579 if (wpa_driver_nl80211_set_mode(&drv
->first_bss
, params
->mode
) ||
3580 wpa_driver_nl80211_set_freq(drv
, params
->freq
, 0, 0)) {
3581 nl80211_remove_monitor_interface(drv
);
3585 /* TODO: setup monitor interface (and add code somewhere to remove this
3586 * when AP mode is stopped; associate with mode != 2 or drv_deinit) */
3592 static int nl80211_leave_ibss(struct wpa_driver_nl80211_data
*drv
)
3597 msg
= nlmsg_alloc();
3601 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0, 0,
3602 NL80211_CMD_LEAVE_IBSS
, 0);
3603 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, drv
->ifindex
);
3604 ret
= send_and_recv_msgs(drv
, msg
, NULL
, NULL
);
3607 wpa_printf(MSG_DEBUG
, "nl80211: Leave IBSS failed: ret=%d "
3608 "(%s)", ret
, strerror(-ret
));
3609 goto nla_put_failure
;
3613 wpa_printf(MSG_DEBUG
, "nl80211: Leave IBSS request sent successfully");
3621 static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data
*drv
,
3622 struct wpa_driver_associate_params
*params
)
3628 wpa_printf(MSG_DEBUG
, "nl80211: Join IBSS (ifindex=%d)", drv
->ifindex
);
3630 if (wpa_driver_nl80211_set_mode(&drv
->first_bss
, params
->mode
)) {
3631 wpa_printf(MSG_INFO
, "nl80211: Failed to set interface into "
3637 msg
= nlmsg_alloc();
3641 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0, 0,
3642 NL80211_CMD_JOIN_IBSS
, 0);
3643 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, drv
->ifindex
);
3645 if (params
->ssid
== NULL
|| params
->ssid_len
> sizeof(drv
->ssid
))
3646 goto nla_put_failure
;
3648 wpa_hexdump_ascii(MSG_DEBUG
, " * SSID",
3649 params
->ssid
, params
->ssid_len
);
3650 NLA_PUT(msg
, NL80211_ATTR_SSID
, params
->ssid_len
,
3652 os_memcpy(drv
->ssid
, params
->ssid
, params
->ssid_len
);
3653 drv
->ssid_len
= params
->ssid_len
;
3655 wpa_printf(MSG_DEBUG
, " * freq=%d", params
->freq
);
3656 NLA_PUT_U32(msg
, NL80211_ATTR_WIPHY_FREQ
, params
->freq
);
3658 ret
= nl80211_set_conn_keys(params
, msg
);
3660 goto nla_put_failure
;
3662 if (params
->wpa_ie
) {
3663 wpa_hexdump(MSG_DEBUG
,
3664 " * Extra IEs for Beacon/Probe Response frames",
3665 params
->wpa_ie
, params
->wpa_ie_len
);
3666 NLA_PUT(msg
, NL80211_ATTR_IE
, params
->wpa_ie_len
,
3670 ret
= send_and_recv_msgs(drv
, msg
, NULL
, NULL
);
3673 wpa_printf(MSG_DEBUG
, "nl80211: Join IBSS failed: ret=%d (%s)",
3674 ret
, strerror(-ret
));
3676 if (ret
== -EALREADY
&& count
== 1) {
3677 wpa_printf(MSG_DEBUG
, "nl80211: Retry IBSS join after "
3679 nl80211_leave_ibss(drv
);
3684 goto nla_put_failure
;
3687 wpa_printf(MSG_DEBUG
, "nl80211: Join IBSS request sent successfully");
3695 static int wpa_driver_nl80211_connect(
3696 struct wpa_driver_nl80211_data
*drv
,
3697 struct wpa_driver_associate_params
*params
)
3700 enum nl80211_auth_type type
;
3703 msg
= nlmsg_alloc();
3707 wpa_printf(MSG_DEBUG
, "nl80211: Connect (ifindex=%d)", drv
->ifindex
);
3708 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0, 0,
3709 NL80211_CMD_CONNECT
, 0);
3711 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, drv
->ifindex
);
3712 if (params
->bssid
) {
3713 wpa_printf(MSG_DEBUG
, " * bssid=" MACSTR
,
3714 MAC2STR(params
->bssid
));
3715 NLA_PUT(msg
, NL80211_ATTR_MAC
, ETH_ALEN
, params
->bssid
);
3718 wpa_printf(MSG_DEBUG
, " * freq=%d", params
->freq
);
3719 NLA_PUT_U32(msg
, NL80211_ATTR_WIPHY_FREQ
, params
->freq
);
3722 wpa_hexdump_ascii(MSG_DEBUG
, " * SSID",
3723 params
->ssid
, params
->ssid_len
);
3724 NLA_PUT(msg
, NL80211_ATTR_SSID
, params
->ssid_len
,
3726 if (params
->ssid_len
> sizeof(drv
->ssid
))
3727 goto nla_put_failure
;
3728 os_memcpy(drv
->ssid
, params
->ssid
, params
->ssid_len
);
3729 drv
->ssid_len
= params
->ssid_len
;
3731 wpa_hexdump(MSG_DEBUG
, " * IEs", params
->wpa_ie
, params
->wpa_ie_len
);
3733 NLA_PUT(msg
, NL80211_ATTR_IE
, params
->wpa_ie_len
,
3736 if (params
->auth_alg
& WPA_AUTH_ALG_OPEN
)
3737 type
= NL80211_AUTHTYPE_OPEN_SYSTEM
;
3738 else if (params
->auth_alg
& WPA_AUTH_ALG_SHARED
)
3739 type
= NL80211_AUTHTYPE_SHARED_KEY
;
3740 else if (params
->auth_alg
& WPA_AUTH_ALG_LEAP
)
3741 type
= NL80211_AUTHTYPE_NETWORK_EAP
;
3742 else if (params
->auth_alg
& WPA_AUTH_ALG_FT
)
3743 type
= NL80211_AUTHTYPE_FT
;
3745 goto nla_put_failure
;
3747 wpa_printf(MSG_DEBUG
, " * Auth Type %d", type
);
3748 NLA_PUT_U32(msg
, NL80211_ATTR_AUTH_TYPE
, type
);
3750 if (params
->wpa_ie
&& params
->wpa_ie_len
) {
3751 enum nl80211_wpa_versions ver
;
3753 if (params
->wpa_ie
[0] == WLAN_EID_RSN
)
3754 ver
= NL80211_WPA_VERSION_2
;
3756 ver
= NL80211_WPA_VERSION_1
;
3758 wpa_printf(MSG_DEBUG
, " * WPA Version %d", ver
);
3759 NLA_PUT_U32(msg
, NL80211_ATTR_WPA_VERSIONS
, ver
);
3762 if (params
->pairwise_suite
!= CIPHER_NONE
) {
3765 switch (params
->pairwise_suite
) {
3767 cipher
= WLAN_CIPHER_SUITE_WEP40
;
3770 cipher
= WLAN_CIPHER_SUITE_WEP104
;
3773 cipher
= WLAN_CIPHER_SUITE_CCMP
;
3777 cipher
= WLAN_CIPHER_SUITE_TKIP
;
3780 NLA_PUT_U32(msg
, NL80211_ATTR_CIPHER_SUITES_PAIRWISE
, cipher
);
3783 if (params
->group_suite
!= CIPHER_NONE
) {
3786 switch (params
->group_suite
) {
3788 cipher
= WLAN_CIPHER_SUITE_WEP40
;
3791 cipher
= WLAN_CIPHER_SUITE_WEP104
;
3794 cipher
= WLAN_CIPHER_SUITE_CCMP
;
3798 cipher
= WLAN_CIPHER_SUITE_TKIP
;
3801 NLA_PUT_U32(msg
, NL80211_ATTR_CIPHER_SUITE_GROUP
, cipher
);
3804 if (params
->key_mgmt_suite
== KEY_MGMT_802_1X
||
3805 params
->key_mgmt_suite
== KEY_MGMT_PSK
) {
3806 int mgmt
= WLAN_AKM_SUITE_PSK
;
3808 switch (params
->key_mgmt_suite
) {
3809 case KEY_MGMT_802_1X
:
3810 mgmt
= WLAN_AKM_SUITE_8021X
;
3814 mgmt
= WLAN_AKM_SUITE_PSK
;
3817 NLA_PUT_U32(msg
, NL80211_ATTR_AKM_SUITES
, mgmt
);
3820 ret
= nl80211_set_conn_keys(params
, msg
);
3822 goto nla_put_failure
;
3824 ret
= send_and_recv_msgs(drv
, msg
, NULL
, NULL
);
3827 wpa_printf(MSG_DEBUG
, "nl80211: MLME connect failed: ret=%d "
3828 "(%s)", ret
, strerror(-ret
));
3829 goto nla_put_failure
;
3832 wpa_printf(MSG_DEBUG
, "nl80211: Connect request send successfully");
3841 static int wpa_driver_nl80211_associate(
3842 void *priv
, struct wpa_driver_associate_params
*params
)
3844 struct i802_bss
*bss
= priv
;
3845 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
3849 if (params
->mode
== IEEE80211_MODE_AP
)
3850 return wpa_driver_nl80211_ap(drv
, params
);
3852 if (params
->mode
== IEEE80211_MODE_IBSS
)
3853 return wpa_driver_nl80211_ibss(drv
, params
);
3855 if (!(drv
->capa
.flags
& WPA_DRIVER_FLAGS_SME
)) {
3856 if (wpa_driver_nl80211_set_mode(priv
, params
->mode
) < 0)
3858 return wpa_driver_nl80211_connect(drv
, params
);
3861 drv
->associated
= 0;
3863 msg
= nlmsg_alloc();
3867 wpa_printf(MSG_DEBUG
, "nl80211: Associate (ifindex=%d)",
3869 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0, 0,
3870 NL80211_CMD_ASSOCIATE
, 0);
3872 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, drv
->ifindex
);
3873 if (params
->bssid
) {
3874 wpa_printf(MSG_DEBUG
, " * bssid=" MACSTR
,
3875 MAC2STR(params
->bssid
));
3876 NLA_PUT(msg
, NL80211_ATTR_MAC
, ETH_ALEN
, params
->bssid
);
3879 wpa_printf(MSG_DEBUG
, " * freq=%d", params
->freq
);
3880 NLA_PUT_U32(msg
, NL80211_ATTR_WIPHY_FREQ
, params
->freq
);
3881 drv
->assoc_freq
= params
->freq
;
3883 drv
->assoc_freq
= 0;
3885 wpa_hexdump_ascii(MSG_DEBUG
, " * SSID",
3886 params
->ssid
, params
->ssid_len
);
3887 NLA_PUT(msg
, NL80211_ATTR_SSID
, params
->ssid_len
,
3889 if (params
->ssid_len
> sizeof(drv
->ssid
))
3890 goto nla_put_failure
;
3891 os_memcpy(drv
->ssid
, params
->ssid
, params
->ssid_len
);
3892 drv
->ssid_len
= params
->ssid_len
;
3894 wpa_hexdump(MSG_DEBUG
, " * IEs", params
->wpa_ie
, params
->wpa_ie_len
);
3896 NLA_PUT(msg
, NL80211_ATTR_IE
, params
->wpa_ie_len
,
3899 #ifdef CONFIG_IEEE80211W
3900 if (params
->mgmt_frame_protection
== MGMT_FRAME_PROTECTION_REQUIRED
)
3901 NLA_PUT_U32(msg
, NL80211_ATTR_USE_MFP
, NL80211_MFP_REQUIRED
);
3902 #endif /* CONFIG_IEEE80211W */
3904 NLA_PUT_FLAG(msg
, NL80211_ATTR_CONTROL_PORT
);
3906 if (params
->prev_bssid
) {
3907 wpa_printf(MSG_DEBUG
, " * prev_bssid=" MACSTR
,
3908 MAC2STR(params
->prev_bssid
));
3909 NLA_PUT(msg
, NL80211_ATTR_PREV_BSSID
, ETH_ALEN
,
3910 params
->prev_bssid
);
3913 ret
= send_and_recv_msgs(drv
, msg
, NULL
, NULL
);
3916 wpa_printf(MSG_DEBUG
, "nl80211: MLME command failed: ret=%d "
3917 "(%s)", ret
, strerror(-ret
));
3918 nl80211_dump_scan(drv
);
3919 goto nla_put_failure
;
3922 wpa_printf(MSG_DEBUG
, "nl80211: Association request send "
3931 static int nl80211_set_mode(struct wpa_driver_nl80211_data
*drv
,
3932 int ifindex
, int mode
)
3937 msg
= nlmsg_alloc();
3941 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0,
3942 0, NL80211_CMD_SET_INTERFACE
, 0);
3943 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, ifindex
);
3944 NLA_PUT_U32(msg
, NL80211_ATTR_IFTYPE
, mode
);
3946 ret
= send_and_recv_msgs(drv
, msg
, NULL
, NULL
);
3950 wpa_printf(MSG_DEBUG
, "nl80211: Failed to set interface %d to mode %d:"
3951 " %d (%s)", ifindex
, mode
, ret
, strerror(-ret
));
3956 static int wpa_driver_nl80211_set_mode(void *priv
, int mode
)
3958 struct i802_bss
*bss
= priv
;
3959 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
3965 nlmode
= NL80211_IFTYPE_STATION
;
3968 nlmode
= NL80211_IFTYPE_ADHOC
;
3971 nlmode
= NL80211_IFTYPE_AP
;
3977 if (nl80211_set_mode(drv
, drv
->ifindex
, nlmode
) == 0) {
3978 drv
->nlmode
= nlmode
;
3983 if (nlmode
== drv
->nlmode
) {
3984 wpa_printf(MSG_DEBUG
, "nl80211: Interface already in "
3985 "requested mode - ignore error");
3987 goto done
; /* Already in the requested mode */
3990 /* mac80211 doesn't allow mode changes while the device is up, so
3991 * take the device down, try to set the mode again, and bring the
3994 if (linux_set_iface_flags(drv
->ioctl_sock
, bss
->ifname
, 0) == 0) {
3995 /* Try to set the mode again while the interface is down */
3996 ret
= nl80211_set_mode(drv
, drv
->ifindex
, nlmode
);
3997 if (linux_set_iface_flags(drv
->ioctl_sock
, bss
->ifname
, 1))
4002 wpa_printf(MSG_DEBUG
, "nl80211: Mode change succeeded while "
4003 "interface is down");
4004 drv
->nlmode
= nlmode
;
4008 if (!ret
&& nlmode
== NL80211_IFTYPE_AP
) {
4009 /* Setup additional AP mode functionality if needed */
4010 if (drv
->monitor_ifidx
< 0 &&
4011 nl80211_create_monitor_interface(drv
))
4013 } else if (!ret
&& nlmode
!= NL80211_IFTYPE_AP
) {
4014 /* Remove additional AP mode functionality */
4015 nl80211_remove_monitor_interface(drv
);
4016 bss
->beacon_set
= 0;
4020 wpa_printf(MSG_DEBUG
, "nl80211: Interface mode change to %d "
4021 "from %d failed", nlmode
, drv
->nlmode
);
4027 static int wpa_driver_nl80211_get_capa(void *priv
,
4028 struct wpa_driver_capa
*capa
)
4030 struct i802_bss
*bss
= priv
;
4031 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
4032 if (!drv
->has_capability
)
4034 os_memcpy(capa
, &drv
->capa
, sizeof(*capa
));
4039 static int wpa_driver_nl80211_set_operstate(void *priv
, int state
)
4041 struct i802_bss
*bss
= priv
;
4042 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
4044 wpa_printf(MSG_DEBUG
, "%s: operstate %d->%d (%s)",
4045 __func__
, drv
->operstate
, state
, state
? "UP" : "DORMANT");
4046 drv
->operstate
= state
;
4047 return netlink_send_oper_ifla(drv
->netlink
, drv
->ifindex
, -1,
4048 state
? IF_OPER_UP
: IF_OPER_DORMANT
);
4052 static int wpa_driver_nl80211_set_supp_port(void *priv
, int authorized
)
4054 struct i802_bss
*bss
= priv
;
4055 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
4057 struct nl80211_sta_flag_update upd
;
4059 msg
= nlmsg_alloc();
4063 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0,
4064 0, NL80211_CMD_SET_STATION
, 0);
4066 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
,
4067 if_nametoindex(bss
->ifname
));
4068 NLA_PUT(msg
, NL80211_ATTR_MAC
, ETH_ALEN
, drv
->bssid
);
4070 os_memset(&upd
, 0, sizeof(upd
));
4071 upd
.mask
= BIT(NL80211_STA_FLAG_AUTHORIZED
);
4073 upd
.set
= BIT(NL80211_STA_FLAG_AUTHORIZED
);
4074 NLA_PUT(msg
, NL80211_ATTR_STA_FLAGS2
, sizeof(upd
), &upd
);
4076 return send_and_recv_msgs(drv
, msg
, NULL
, NULL
);
4084 static void add_ifidx(struct wpa_driver_nl80211_data
*drv
, int ifidx
)
4089 wpa_printf(MSG_DEBUG
, "nl80211: Add own interface ifindex %d",
4091 for (i
= 0; i
< drv
->num_if_indices
; i
++) {
4092 if (drv
->if_indices
[i
] == 0) {
4093 drv
->if_indices
[i
] = ifidx
;
4098 if (drv
->if_indices
!= drv
->default_if_indices
)
4099 old
= drv
->if_indices
;
4103 drv
->if_indices
= os_realloc(old
,
4104 sizeof(int) * (drv
->num_if_indices
+ 1));
4105 if (!drv
->if_indices
) {
4107 drv
->if_indices
= drv
->default_if_indices
;
4109 drv
->if_indices
= old
;
4110 wpa_printf(MSG_ERROR
, "Failed to reallocate memory for "
4112 wpa_printf(MSG_ERROR
, "Ignoring EAPOL on interface %d", ifidx
);
4115 drv
->if_indices
[drv
->num_if_indices
] = ifidx
;
4116 drv
->num_if_indices
++;
4120 static void del_ifidx(struct wpa_driver_nl80211_data
*drv
, int ifidx
)
4124 for (i
= 0; i
< drv
->num_if_indices
; i
++) {
4125 if (drv
->if_indices
[i
] == ifidx
) {
4126 drv
->if_indices
[i
] = 0;
4133 static int have_ifidx(struct wpa_driver_nl80211_data
*drv
, int ifidx
)
4137 for (i
= 0; i
< drv
->num_if_indices
; i
++)
4138 if (drv
->if_indices
[i
] == ifidx
)
4145 static inline int min_int(int a
, int b
)
4153 static int get_key_handler(struct nl_msg
*msg
, void *arg
)
4155 struct nlattr
*tb
[NL80211_ATTR_MAX
+ 1];
4156 struct genlmsghdr
*gnlh
= nlmsg_data(nlmsg_hdr(msg
));
4158 nla_parse(tb
, NL80211_ATTR_MAX
, genlmsg_attrdata(gnlh
, 0),
4159 genlmsg_attrlen(gnlh
, 0), NULL
);
4162 * TODO: validate the key index and mac address!
4163 * Otherwise, there's a race condition as soon as
4164 * the kernel starts sending key notifications.
4167 if (tb
[NL80211_ATTR_KEY_SEQ
])
4168 memcpy(arg
, nla_data(tb
[NL80211_ATTR_KEY_SEQ
]),
4169 min_int(nla_len(tb
[NL80211_ATTR_KEY_SEQ
]), 6));
4174 static int i802_get_seqnum(const char *iface
, void *priv
, const u8
*addr
,
4177 struct i802_bss
*bss
= priv
;
4178 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
4181 msg
= nlmsg_alloc();
4185 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0,
4186 0, NL80211_CMD_GET_KEY
, 0);
4189 NLA_PUT(msg
, NL80211_ATTR_MAC
, ETH_ALEN
, addr
);
4190 NLA_PUT_U8(msg
, NL80211_ATTR_KEY_IDX
, idx
);
4191 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, if_nametoindex(iface
));
4195 return send_and_recv_msgs(drv
, msg
, get_key_handler
, seq
);
4201 static int i802_set_rate_sets(void *priv
, int *supp_rates
, int *basic_rates
,
4204 struct i802_bss
*bss
= priv
;
4205 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
4207 u8 rates
[NL80211_MAX_SUPP_RATES
];
4211 msg
= nlmsg_alloc();
4215 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0, 0,
4216 NL80211_CMD_SET_BSS
, 0);
4218 for (i
= 0; i
< NL80211_MAX_SUPP_RATES
&& basic_rates
[i
] >= 0; i
++)
4219 rates
[rates_len
++] = basic_rates
[i
] / 5;
4221 NLA_PUT(msg
, NL80211_ATTR_BSS_BASIC_RATES
, rates_len
, rates
);
4223 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, if_nametoindex(bss
->ifname
));
4225 return send_and_recv_msgs(drv
, msg
, NULL
, NULL
);
4230 #endif /* HOSTAPD */
4233 /* Set kernel driver on given frequency (MHz) */
4234 static int i802_set_freq(void *priv
, struct hostapd_freq_params
*freq
)
4236 struct i802_bss
*bss
= priv
;
4237 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
4238 return wpa_driver_nl80211_set_freq(drv
, freq
->freq
, freq
->ht_enabled
,
4239 freq
->sec_channel_offset
);
4245 static int i802_set_rts(void *priv
, int rts
)
4247 struct i802_bss
*bss
= priv
;
4248 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
4253 msg
= nlmsg_alloc();
4262 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0,
4263 0, NL80211_CMD_SET_WIPHY
, 0);
4264 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, drv
->ifindex
);
4265 NLA_PUT_U32(msg
, NL80211_ATTR_WIPHY_RTS_THRESHOLD
, val
);
4267 ret
= send_and_recv_msgs(drv
, msg
, NULL
, NULL
);
4271 wpa_printf(MSG_DEBUG
, "nl80211: Failed to set RTS threshold %d: "
4272 "%d (%s)", rts
, ret
, strerror(-ret
));
4277 static int i802_set_frag(void *priv
, int frag
)
4279 struct i802_bss
*bss
= priv
;
4280 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
4285 msg
= nlmsg_alloc();
4294 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0,
4295 0, NL80211_CMD_SET_WIPHY
, 0);
4296 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, drv
->ifindex
);
4297 NLA_PUT_U32(msg
, NL80211_ATTR_WIPHY_FRAG_THRESHOLD
, val
);
4299 ret
= send_and_recv_msgs(drv
, msg
, NULL
, NULL
);
4303 wpa_printf(MSG_DEBUG
, "nl80211: Failed to set fragmentation threshold "
4304 "%d: %d (%s)", frag
, ret
, strerror(-ret
));
4309 static int i802_flush(void *priv
)
4311 struct i802_bss
*bss
= priv
;
4312 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
4315 msg
= nlmsg_alloc();
4319 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0,
4320 0, NL80211_CMD_DEL_STATION
, 0);
4323 * XXX: FIX! this needs to flush all VLANs too
4325 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
,
4326 if_nametoindex(bss
->ifname
));
4328 return send_and_recv_msgs(drv
, msg
, NULL
, NULL
);
4334 static int get_sta_handler(struct nl_msg
*msg
, void *arg
)
4336 struct nlattr
*tb
[NL80211_ATTR_MAX
+ 1];
4337 struct genlmsghdr
*gnlh
= nlmsg_data(nlmsg_hdr(msg
));
4338 struct hostap_sta_driver_data
*data
= arg
;
4339 struct nlattr
*stats
[NL80211_STA_INFO_MAX
+ 1];
4340 static struct nla_policy stats_policy
[NL80211_STA_INFO_MAX
+ 1] = {
4341 [NL80211_STA_INFO_INACTIVE_TIME
] = { .type
= NLA_U32
},
4342 [NL80211_STA_INFO_RX_BYTES
] = { .type
= NLA_U32
},
4343 [NL80211_STA_INFO_TX_BYTES
] = { .type
= NLA_U32
},
4344 [NL80211_STA_INFO_RX_PACKETS
] = { .type
= NLA_U32
},
4345 [NL80211_STA_INFO_TX_PACKETS
] = { .type
= NLA_U32
},
4348 nla_parse(tb
, NL80211_ATTR_MAX
, genlmsg_attrdata(gnlh
, 0),
4349 genlmsg_attrlen(gnlh
, 0), NULL
);
4352 * TODO: validate the interface and mac address!
4353 * Otherwise, there's a race condition as soon as
4354 * the kernel starts sending station notifications.
4357 if (!tb
[NL80211_ATTR_STA_INFO
]) {
4358 wpa_printf(MSG_DEBUG
, "sta stats missing!");
4361 if (nla_parse_nested(stats
, NL80211_STA_INFO_MAX
,
4362 tb
[NL80211_ATTR_STA_INFO
],
4364 wpa_printf(MSG_DEBUG
, "failed to parse nested attributes!");
4368 if (stats
[NL80211_STA_INFO_INACTIVE_TIME
])
4369 data
->inactive_msec
=
4370 nla_get_u32(stats
[NL80211_STA_INFO_INACTIVE_TIME
]);
4371 if (stats
[NL80211_STA_INFO_RX_BYTES
])
4372 data
->rx_bytes
= nla_get_u32(stats
[NL80211_STA_INFO_RX_BYTES
]);
4373 if (stats
[NL80211_STA_INFO_TX_BYTES
])
4374 data
->tx_bytes
= nla_get_u32(stats
[NL80211_STA_INFO_TX_BYTES
]);
4375 if (stats
[NL80211_STA_INFO_RX_PACKETS
])
4377 nla_get_u32(stats
[NL80211_STA_INFO_RX_PACKETS
]);
4378 if (stats
[NL80211_STA_INFO_TX_PACKETS
])
4380 nla_get_u32(stats
[NL80211_STA_INFO_TX_PACKETS
]);
4385 static int i802_read_sta_data(void *priv
, struct hostap_sta_driver_data
*data
,
4388 struct i802_bss
*bss
= priv
;
4389 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
4392 os_memset(data
, 0, sizeof(*data
));
4393 msg
= nlmsg_alloc();
4397 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0,
4398 0, NL80211_CMD_GET_STATION
, 0);
4400 NLA_PUT(msg
, NL80211_ATTR_MAC
, ETH_ALEN
, addr
);
4401 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, if_nametoindex(bss
->ifname
));
4403 return send_and_recv_msgs(drv
, msg
, get_sta_handler
, data
);
4409 static int i802_set_tx_queue_params(void *priv
, int queue
, int aifs
,
4410 int cw_min
, int cw_max
, int burst_time
)
4412 struct i802_bss
*bss
= priv
;
4413 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
4415 struct nlattr
*txq
, *params
;
4417 msg
= nlmsg_alloc();
4421 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0,
4422 0, NL80211_CMD_SET_WIPHY
, 0);
4424 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, if_nametoindex(bss
->ifname
));
4426 txq
= nla_nest_start(msg
, NL80211_ATTR_WIPHY_TXQ_PARAMS
);
4428 goto nla_put_failure
;
4430 /* We are only sending parameters for a single TXQ at a time */
4431 params
= nla_nest_start(msg
, 1);
4433 goto nla_put_failure
;
4435 NLA_PUT_U8(msg
, NL80211_TXQ_ATTR_QUEUE
, queue
);
4436 /* Burst time is configured in units of 0.1 msec and TXOP parameter in
4437 * 32 usec, so need to convert the value here. */
4438 NLA_PUT_U16(msg
, NL80211_TXQ_ATTR_TXOP
, (burst_time
* 100 + 16) / 32);
4439 NLA_PUT_U16(msg
, NL80211_TXQ_ATTR_CWMIN
, cw_min
);
4440 NLA_PUT_U16(msg
, NL80211_TXQ_ATTR_CWMAX
, cw_max
);
4441 NLA_PUT_U8(msg
, NL80211_TXQ_ATTR_AIFS
, aifs
);
4443 nla_nest_end(msg
, params
);
4445 nla_nest_end(msg
, txq
);
4447 if (send_and_recv_msgs(drv
, msg
, NULL
, NULL
) == 0)
4454 static int i802_set_bss(void *priv
, int cts
, int preamble
, int slot
)
4456 struct i802_bss
*bss
= priv
;
4457 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
4460 msg
= nlmsg_alloc();
4464 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0, 0,
4465 NL80211_CMD_SET_BSS
, 0);
4468 NLA_PUT_U8(msg
, NL80211_ATTR_BSS_CTS_PROT
, cts
);
4470 NLA_PUT_U8(msg
, NL80211_ATTR_BSS_SHORT_PREAMBLE
, preamble
);
4472 NLA_PUT_U8(msg
, NL80211_ATTR_BSS_SHORT_SLOT_TIME
, slot
);
4474 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, if_nametoindex(bss
->ifname
));
4476 return send_and_recv_msgs(drv
, msg
, NULL
, NULL
);
4482 static int i802_set_cts_protect(void *priv
, int value
)
4484 return i802_set_bss(priv
, value
, -1, -1);
4488 static int i802_set_preamble(void *priv
, int value
)
4490 return i802_set_bss(priv
, -1, value
, -1);
4494 static int i802_set_short_slot_time(void *priv
, int value
)
4496 return i802_set_bss(priv
, -1, -1, value
);
4500 static int i802_set_sta_vlan(void *priv
, const u8
*addr
,
4501 const char *ifname
, int vlan_id
)
4503 struct i802_bss
*bss
= priv
;
4504 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
4507 msg
= nlmsg_alloc();
4511 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0,
4512 0, NL80211_CMD_SET_STATION
, 0);
4514 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
,
4515 if_nametoindex(bss
->ifname
));
4516 NLA_PUT(msg
, NL80211_ATTR_MAC
, ETH_ALEN
, addr
);
4517 NLA_PUT_U32(msg
, NL80211_ATTR_STA_VLAN
,
4518 if_nametoindex(ifname
));
4520 return send_and_recv_msgs(drv
, msg
, NULL
, NULL
);
4526 static int i802_set_wds_sta(void *priv
, const u8
*addr
, int aid
, int val
)
4528 struct i802_bss
*bss
= priv
;
4529 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
4530 char name
[IFNAMSIZ
+ 1];
4532 os_snprintf(name
, sizeof(name
), "%s.sta%d", bss
->ifname
, aid
);
4533 wpa_printf(MSG_DEBUG
, "nl80211: Set WDS STA addr=" MACSTR
4534 " aid=%d val=%d name=%s", MAC2STR(addr
), aid
, val
, name
);
4536 if (nl80211_create_iface(drv
, name
, NL80211_IFTYPE_AP_VLAN
,
4539 linux_set_iface_flags(drv
->ioctl_sock
, name
, 1);
4540 return i802_set_sta_vlan(priv
, addr
, name
, 0);
4542 i802_set_sta_vlan(priv
, addr
, bss
->ifname
, 0);
4543 return wpa_driver_nl80211_if_remove(priv
, WPA_IF_AP_VLAN
,
4549 static void handle_eapol(int sock
, void *eloop_ctx
, void *sock_ctx
)
4551 struct wpa_driver_nl80211_data
*drv
= eloop_ctx
;
4552 struct sockaddr_ll lladdr
;
4553 unsigned char buf
[3000];
4555 socklen_t fromlen
= sizeof(lladdr
);
4557 len
= recvfrom(sock
, buf
, sizeof(buf
), 0,
4558 (struct sockaddr
*)&lladdr
, &fromlen
);
4564 if (have_ifidx(drv
, lladdr
.sll_ifindex
))
4565 drv_event_eapol_rx(drv
->ctx
, lladdr
.sll_addr
, buf
, len
);
4569 static int i802_get_inact_sec(void *priv
, const u8
*addr
)
4571 struct hostap_sta_driver_data data
;
4574 data
.inactive_msec
= (unsigned long) -1;
4575 ret
= i802_read_sta_data(priv
, &data
, addr
);
4576 if (ret
|| data
.inactive_msec
== (unsigned long) -1)
4578 return data
.inactive_msec
/ 1000;
4582 static int i802_sta_clear_stats(void *priv
, const u8
*addr
)
4591 static int i802_sta_deauth(void *priv
, const u8
*own_addr
, const u8
*addr
,
4594 struct i802_bss
*bss
= priv
;
4595 struct ieee80211_mgmt mgmt
;
4597 memset(&mgmt
, 0, sizeof(mgmt
));
4598 mgmt
.frame_control
= IEEE80211_FC(WLAN_FC_TYPE_MGMT
,
4599 WLAN_FC_STYPE_DEAUTH
);
4600 memcpy(mgmt
.da
, addr
, ETH_ALEN
);
4601 memcpy(mgmt
.sa
, own_addr
, ETH_ALEN
);
4602 memcpy(mgmt
.bssid
, own_addr
, ETH_ALEN
);
4603 mgmt
.u
.deauth
.reason_code
= host_to_le16(reason
);
4604 return wpa_driver_nl80211_send_mlme(bss
, (u8
*) &mgmt
,
4606 sizeof(mgmt
.u
.deauth
));
4610 static int i802_sta_disassoc(void *priv
, const u8
*own_addr
, const u8
*addr
,
4613 struct i802_bss
*bss
= priv
;
4614 struct ieee80211_mgmt mgmt
;
4616 memset(&mgmt
, 0, sizeof(mgmt
));
4617 mgmt
.frame_control
= IEEE80211_FC(WLAN_FC_TYPE_MGMT
,
4618 WLAN_FC_STYPE_DISASSOC
);
4619 memcpy(mgmt
.da
, addr
, ETH_ALEN
);
4620 memcpy(mgmt
.sa
, own_addr
, ETH_ALEN
);
4621 memcpy(mgmt
.bssid
, own_addr
, ETH_ALEN
);
4622 mgmt
.u
.disassoc
.reason_code
= host_to_le16(reason
);
4623 return wpa_driver_nl80211_send_mlme(bss
, (u8
*) &mgmt
,
4625 sizeof(mgmt
.u
.disassoc
));
4629 static int i802_check_bridge(struct wpa_driver_nl80211_data
*drv
,
4630 const char *brname
, const char *ifname
)
4633 char in_br
[IFNAMSIZ
];
4635 os_strlcpy(drv
->brname
, brname
, IFNAMSIZ
);
4636 ifindex
= if_nametoindex(brname
);
4639 * Bridge was configured, but the bridge device does
4640 * not exist. Try to add it now.
4642 if (linux_br_add(drv
->ioctl_sock
, brname
) < 0) {
4643 wpa_printf(MSG_ERROR
, "nl80211: Failed to add the "
4644 "bridge interface %s: %s",
4645 brname
, strerror(errno
));
4648 drv
->added_bridge
= 1;
4649 add_ifidx(drv
, if_nametoindex(brname
));
4652 if (linux_br_get(in_br
, ifname
) == 0) {
4653 if (os_strcmp(in_br
, brname
) == 0)
4654 return 0; /* already in the bridge */
4656 wpa_printf(MSG_DEBUG
, "nl80211: Removing interface %s from "
4657 "bridge %s", ifname
, in_br
);
4658 if (linux_br_del_if(drv
->ioctl_sock
, in_br
, ifname
) < 0) {
4659 wpa_printf(MSG_ERROR
, "nl80211: Failed to "
4660 "remove interface %s from bridge "
4662 ifname
, brname
, strerror(errno
));
4667 wpa_printf(MSG_DEBUG
, "nl80211: Adding interface %s into bridge %s",
4669 if (linux_br_add_if(drv
->ioctl_sock
, brname
, ifname
) < 0) {
4670 wpa_printf(MSG_ERROR
, "nl80211: Failed to add interface %s "
4671 "into bridge %s: %s",
4672 ifname
, brname
, strerror(errno
));
4675 drv
->added_if_into_bridge
= 1;
4681 static void *i802_init(struct hostapd_data
*hapd
,
4682 struct wpa_init_params
*params
)
4684 struct wpa_driver_nl80211_data
*drv
;
4685 struct i802_bss
*bss
;
4687 char brname
[IFNAMSIZ
];
4688 int ifindex
, br_ifindex
;
4691 bss
= wpa_driver_nl80211_init(hapd
, params
->ifname
);
4696 if (linux_br_get(brname
, params
->ifname
) == 0) {
4697 wpa_printf(MSG_DEBUG
, "nl80211: Interface %s is in bridge %s",
4698 params
->ifname
, brname
);
4699 br_ifindex
= if_nametoindex(brname
);
4705 drv
->num_if_indices
= sizeof(drv
->default_if_indices
) / sizeof(int);
4706 drv
->if_indices
= drv
->default_if_indices
;
4707 for (i
= 0; i
< params
->num_bridge
; i
++) {
4708 if (params
->bridge
[i
]) {
4709 ifindex
= if_nametoindex(params
->bridge
[i
]);
4711 add_ifidx(drv
, ifindex
);
4712 if (ifindex
== br_ifindex
)
4716 if (!br_added
&& br_ifindex
&&
4717 (params
->num_bridge
== 0 || !params
->bridge
[0]))
4718 add_ifidx(drv
, br_ifindex
);
4720 /* start listening for EAPOL on the default AP interface */
4721 add_ifidx(drv
, drv
->ifindex
);
4723 if (linux_set_iface_flags(drv
->ioctl_sock
, bss
->ifname
, 0))
4726 if (params
->bssid
) {
4727 if (linux_set_ifhwaddr(drv
->ioctl_sock
, bss
->ifname
,
4732 if (wpa_driver_nl80211_set_mode(bss
, IEEE80211_MODE_AP
)) {
4733 wpa_printf(MSG_ERROR
, "nl80211: Failed to set interface %s "
4734 "into AP mode", bss
->ifname
);
4738 if (params
->num_bridge
&& params
->bridge
[0] &&
4739 i802_check_bridge(drv
, params
->bridge
[0], params
->ifname
) < 0)
4742 if (linux_set_iface_flags(drv
->ioctl_sock
, bss
->ifname
, 1))
4745 drv
->eapol_sock
= socket(PF_PACKET
, SOCK_DGRAM
, htons(ETH_P_PAE
));
4746 if (drv
->eapol_sock
< 0) {
4747 perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)");
4751 if (eloop_register_read_sock(drv
->eapol_sock
, handle_eapol
, drv
, NULL
))
4753 printf("Could not register read socket for eapol\n");
4757 if (linux_get_ifhwaddr(drv
->ioctl_sock
, bss
->ifname
, params
->own_addr
))
4763 nl80211_remove_monitor_interface(drv
);
4764 if (drv
->ioctl_sock
>= 0)
4765 close(drv
->ioctl_sock
);
4767 genl_family_put(drv
->nl80211
);
4768 nl_cache_free(drv
->nl_cache
);
4769 nl_handle_destroy(drv
->nl_handle
);
4770 nl_cb_put(drv
->nl_cb
);
4777 static void i802_deinit(void *priv
)
4779 wpa_driver_nl80211_deinit(priv
);
4782 #endif /* HOSTAPD */
4785 static enum nl80211_iftype
wpa_driver_nl80211_if_type(
4786 enum wpa_driver_if_type type
)
4789 case WPA_IF_STATION
:
4790 return NL80211_IFTYPE_STATION
;
4791 case WPA_IF_AP_VLAN
:
4792 return NL80211_IFTYPE_AP_VLAN
;
4794 return NL80211_IFTYPE_AP
;
4800 static int wpa_driver_nl80211_if_add(void *priv
, enum wpa_driver_if_type type
,
4801 const char *ifname
, const u8
*addr
,
4802 void *bss_ctx
, void **drv_priv
,
4803 char *force_ifname
, u8
*if_addr
)
4805 struct i802_bss
*bss
= priv
;
4806 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
4809 struct i802_bss
*new_bss
= NULL
;
4811 if (type
== WPA_IF_AP_BSS
) {
4812 new_bss
= os_zalloc(sizeof(*new_bss
));
4813 if (new_bss
== NULL
)
4816 #endif /* HOSTAPD */
4819 os_memcpy(if_addr
, addr
, ETH_ALEN
);
4820 ifidx
= nl80211_create_iface(drv
, ifname
,
4821 wpa_driver_nl80211_if_type(type
), addr
,
4826 #endif /* HOSTAPD */
4831 linux_get_ifhwaddr(drv
->ioctl_sock
, bss
->ifname
, if_addr
) < 0)
4835 if (type
== WPA_IF_AP_BSS
) {
4836 if (linux_set_iface_flags(drv
->ioctl_sock
, ifname
, 1)) {
4837 nl80211_remove_iface(drv
, ifidx
);
4841 os_strlcpy(new_bss
->ifname
, ifname
, IFNAMSIZ
);
4842 new_bss
->ifindex
= ifidx
;
4844 new_bss
->next
= drv
->first_bss
.next
;
4845 drv
->first_bss
.next
= new_bss
;
4847 *drv_priv
= new_bss
;
4849 #endif /* HOSTAPD */
4855 static int wpa_driver_nl80211_if_remove(void *priv
,
4856 enum wpa_driver_if_type type
,
4859 struct i802_bss
*bss
= priv
;
4860 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
4861 int ifindex
= if_nametoindex(ifname
);
4863 wpa_printf(MSG_DEBUG
, "nl80211: %s(type=%d ifname=%s) ifindex=%d",
4864 __func__
, type
, ifname
, ifindex
);
4867 nl80211_remove_iface(drv
, ifindex
);
4870 if (type
!= WPA_IF_AP_BSS
)
4873 if (bss
!= &drv
->first_bss
) {
4874 struct i802_bss
*tbss
= &drv
->first_bss
;
4877 if (tbss
->next
!= bss
)
4880 tbss
->next
= bss
->next
;
4885 #endif /* HOSTAPD */
4891 static int cookie_handler(struct nl_msg
*msg
, void *arg
)
4893 struct nlattr
*tb
[NL80211_ATTR_MAX
+ 1];
4894 struct genlmsghdr
*gnlh
= nlmsg_data(nlmsg_hdr(msg
));
4896 nla_parse(tb
, NL80211_ATTR_MAX
, genlmsg_attrdata(gnlh
, 0),
4897 genlmsg_attrlen(gnlh
, 0), NULL
);
4898 if (tb
[NL80211_ATTR_COOKIE
])
4899 *cookie
= nla_get_u64(tb
[NL80211_ATTR_COOKIE
]);
4904 static int wpa_driver_nl80211_send_action(void *priv
, unsigned int freq
,
4905 const u8
*dst
, const u8
*src
,
4907 const u8
*data
, size_t data_len
)
4909 struct i802_bss
*bss
= priv
;
4910 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
4914 struct ieee80211_hdr
*hdr
;
4917 wpa_printf(MSG_DEBUG
, "nl80211: Send Action frame (ifindex=%d)",
4920 buf
= os_zalloc(24 + data_len
);
4923 os_memcpy(buf
+ 24, data
, data_len
);
4924 hdr
= (struct ieee80211_hdr
*) buf
;
4925 hdr
->frame_control
=
4926 IEEE80211_FC(WLAN_FC_TYPE_MGMT
, WLAN_FC_STYPE_ACTION
);
4927 os_memcpy(hdr
->addr1
, dst
, ETH_ALEN
);
4928 os_memcpy(hdr
->addr2
, src
, ETH_ALEN
);
4929 os_memcpy(hdr
->addr3
, bssid
, ETH_ALEN
);
4931 if (drv
->nlmode
== NL80211_IFTYPE_AP
) {
4932 ret
= wpa_driver_nl80211_send_mlme(priv
, buf
, 24 + data_len
);
4937 msg
= nlmsg_alloc();
4943 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0, 0,
4944 NL80211_CMD_ACTION
, 0);
4946 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, drv
->ifindex
);
4947 NLA_PUT_U32(msg
, NL80211_ATTR_WIPHY_FREQ
, freq
);
4948 NLA_PUT(msg
, NL80211_ATTR_FRAME
, 24 + data_len
, buf
);
4953 ret
= send_and_recv_msgs(drv
, msg
, cookie_handler
, &cookie
);
4956 wpa_printf(MSG_DEBUG
, "nl80211: Action command failed: ret=%d "
4957 "(%s)", ret
, strerror(-ret
));
4958 goto nla_put_failure
;
4960 wpa_printf(MSG_DEBUG
, "nl80211: Action TX command accepted; "
4961 "cookie 0x%llx", (long long unsigned int) cookie
);
4962 drv
->send_action_cookie
= cookie
;
4963 drv
->pending_send_action
= 1;
4973 static int wpa_driver_nl80211_remain_on_channel(void *priv
, unsigned int freq
,
4974 unsigned int duration
)
4976 struct i802_bss
*bss
= priv
;
4977 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
4982 msg
= nlmsg_alloc();
4986 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0, 0,
4987 NL80211_CMD_REMAIN_ON_CHANNEL
, 0);
4989 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, drv
->ifindex
);
4990 NLA_PUT_U32(msg
, NL80211_ATTR_WIPHY_FREQ
, freq
);
4991 NLA_PUT_U32(msg
, NL80211_ATTR_DURATION
, duration
);
4994 ret
= send_and_recv_msgs(drv
, msg
, cookie_handler
, &cookie
);
4996 wpa_printf(MSG_DEBUG
, "nl80211: Remain-on-channel cookie "
4997 "0x%llx for freq=%u MHz duration=%u",
4998 (long long unsigned int) cookie
, freq
, duration
);
4999 drv
->remain_on_chan_cookie
= cookie
;
5002 wpa_printf(MSG_DEBUG
, "nl80211: Failed to request remain-on-channel "
5003 "(freq=%d): %d (%s)", freq
, ret
, strerror(-ret
));
5009 static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv
)
5011 struct i802_bss
*bss
= priv
;
5012 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
5016 if (!drv
->pending_remain_on_chan
) {
5017 wpa_printf(MSG_DEBUG
, "nl80211: No pending remain-on-channel "
5022 wpa_printf(MSG_DEBUG
, "nl80211: Cancel remain-on-channel with cookie "
5024 (long long unsigned int) drv
->remain_on_chan_cookie
);
5026 msg
= nlmsg_alloc();
5030 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0, 0,
5031 NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL
, 0);
5033 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, drv
->ifindex
);
5034 NLA_PUT_U64(msg
, NL80211_ATTR_COOKIE
, drv
->remain_on_chan_cookie
);
5036 ret
= send_and_recv_msgs(drv
, msg
, NULL
, NULL
);
5039 wpa_printf(MSG_DEBUG
, "nl80211: Failed to cancel remain-on-channel: "
5040 "%d (%s)", ret
, strerror(-ret
));
5046 static void wpa_driver_nl80211_probe_req_report_timeout(void *eloop_ctx
,
5049 struct wpa_driver_nl80211_data
*drv
= eloop_ctx
;
5050 if (drv
->monitor_ifidx
< 0)
5051 return; /* monitor interface already removed */
5053 if (drv
->nlmode
!= NL80211_IFTYPE_STATION
)
5054 return; /* not in station mode anymore */
5056 if (drv
->probe_req_report
)
5057 return; /* reporting enabled */
5059 wpa_printf(MSG_DEBUG
, "nl80211: Remove monitor interface due to no "
5060 "Probe Request reporting needed anymore");
5061 nl80211_remove_monitor_interface(drv
);
5065 static int wpa_driver_nl80211_probe_req_report(void *priv
, int report
)
5067 struct i802_bss
*bss
= priv
;
5068 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
5070 if (drv
->nlmode
!= NL80211_IFTYPE_STATION
) {
5071 wpa_printf(MSG_DEBUG
, "nl80211: probe_req_report control only "
5072 "allowed in station mode (iftype=%d)",
5076 drv
->probe_req_report
= report
;
5079 eloop_cancel_timeout(
5080 wpa_driver_nl80211_probe_req_report_timeout
,
5082 if (drv
->monitor_ifidx
< 0 &&
5083 nl80211_create_monitor_interface(drv
))
5087 * It takes a while to remove the monitor interface, so try to
5088 * avoid doing this if it is needed again shortly. Instead,
5089 * schedule the interface to be removed later if no need for it
5092 wpa_printf(MSG_DEBUG
, "nl80211: Scheduling monitor interface "
5093 "to be removed after 10 seconds of no use");
5094 eloop_register_timeout(
5095 10, 0, wpa_driver_nl80211_probe_req_report_timeout
,
5103 static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data
*drv
,
5104 int ifindex
, int disabled
)
5107 struct nlattr
*bands
, *band
;
5110 msg
= nlmsg_alloc();
5114 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0, 0,
5115 NL80211_CMD_SET_TX_BITRATE_MASK
, 0);
5116 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, ifindex
);
5118 bands
= nla_nest_start(msg
, NL80211_ATTR_TX_RATES
);
5120 goto nla_put_failure
;
5123 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything
5124 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS
5125 * rates. All 5 GHz rates are left enabled.
5127 band
= nla_nest_start(msg
, NL80211_BAND_2GHZ
);
5129 goto nla_put_failure
;
5130 NLA_PUT(msg
, NL80211_TXRATE_LEGACY
, 8,
5131 "\x0c\x12\x18\x24\x30\x48\x60\x6c");
5132 nla_nest_end(msg
, band
);
5134 nla_nest_end(msg
, bands
);
5136 ret
= send_and_recv_msgs(drv
, msg
, NULL
, NULL
);
5139 wpa_printf(MSG_DEBUG
, "nl80211: Set TX rates failed: ret=%d "
5140 "(%s)", ret
, strerror(-ret
));
5151 static int wpa_driver_nl80211_disable_11b_rates(void *priv
, int disabled
)
5153 struct i802_bss
*bss
= priv
;
5154 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
5155 drv
->disable_11b_rates
= disabled
;
5156 return nl80211_disable_11b_rates(drv
, drv
->ifindex
, disabled
);
5160 static int wpa_driver_nl80211_deinit_ap(void *priv
)
5162 struct i802_bss
*bss
= priv
;
5163 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
5164 if (drv
->nlmode
!= NL80211_IFTYPE_AP
)
5166 wpa_driver_nl80211_del_beacon(drv
);
5167 return wpa_driver_nl80211_set_mode(priv
, IEEE80211_MODE_INFRA
);
5171 static void wpa_driver_nl80211_resume(void *priv
)
5173 struct i802_bss
*bss
= priv
;
5174 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
5175 if (linux_set_iface_flags(drv
->ioctl_sock
, bss
->ifname
, 1)) {
5176 wpa_printf(MSG_DEBUG
, "nl80211: Failed to set interface up on "
5182 static int nl80211_send_ft_action(void *priv
, u8 action
, const u8
*target_ap
,
5183 const u8
*ies
, size_t ies_len
)
5185 struct i802_bss
*bss
= priv
;
5186 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
5190 u8 own_addr
[ETH_ALEN
];
5192 if (linux_get_ifhwaddr(drv
->ioctl_sock
, bss
->ifname
, own_addr
) < 0)
5196 wpa_printf(MSG_ERROR
, "nl80211: Unsupported send_ft_action "
5197 "action %d", action
);
5202 * Action frame payload:
5203 * Category[1] = 6 (Fast BSS Transition)
5204 * Action[1] = 1 (Fast BSS Transition Request)
5210 data_len
= 2 + 2 * ETH_ALEN
+ ies_len
;
5211 data
= os_malloc(data_len
);
5215 *pos
++ = 0x06; /* FT Action category */
5217 os_memcpy(pos
, own_addr
, ETH_ALEN
);
5219 os_memcpy(pos
, target_ap
, ETH_ALEN
);
5221 os_memcpy(pos
, ies
, ies_len
);
5223 ret
= wpa_driver_nl80211_send_action(bss
, drv
->assoc_freq
, drv
->bssid
,
5224 own_addr
, drv
->bssid
,
5232 static int nl80211_signal_monitor(void *priv
, int threshold
, int hysteresis
)
5234 struct i802_bss
*bss
= priv
;
5235 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
5236 struct nl_msg
*msg
, *cqm
= NULL
;
5238 wpa_printf(MSG_DEBUG
, "nl80211: Signal monitor threshold=%d "
5239 "hysteresis=%d", threshold
, hysteresis
);
5241 msg
= nlmsg_alloc();
5245 genlmsg_put(msg
, 0, 0, genl_family_get_id(drv
->nl80211
), 0,
5246 0, NL80211_CMD_SET_CQM
, 0);
5248 NLA_PUT_U32(msg
, NL80211_ATTR_IFINDEX
, bss
->ifindex
);
5250 cqm
= nlmsg_alloc();
5254 NLA_PUT_U32(cqm
, NL80211_ATTR_CQM_RSSI_THOLD
, threshold
);
5255 NLA_PUT_U32(cqm
, NL80211_ATTR_CQM_RSSI_HYST
, hysteresis
);
5256 nla_put_nested(msg
, NL80211_ATTR_CQM
, cqm
);
5258 if (send_and_recv_msgs(drv
, msg
, NULL
, NULL
) == 0)
5270 static int nl80211_send_frame(void *priv
, const u8
*data
, size_t data_len
,
5273 struct i802_bss
*bss
= priv
;
5274 struct wpa_driver_nl80211_data
*drv
= bss
->drv
;
5275 return wpa_driver_nl80211_send_frame(drv
, data
, data_len
, encrypt
);
5279 const struct wpa_driver_ops wpa_driver_nl80211_ops
= {
5281 .desc
= "Linux nl80211/cfg80211",
5282 .get_bssid
= wpa_driver_nl80211_get_bssid
,
5283 .get_ssid
= wpa_driver_nl80211_get_ssid
,
5284 .set_key
= wpa_driver_nl80211_set_key
,
5285 .scan2
= wpa_driver_nl80211_scan
,
5286 .get_scan_results2
= wpa_driver_nl80211_get_scan_results
,
5287 .deauthenticate
= wpa_driver_nl80211_deauthenticate
,
5288 .disassociate
= wpa_driver_nl80211_disassociate
,
5289 .authenticate
= wpa_driver_nl80211_authenticate
,
5290 .associate
= wpa_driver_nl80211_associate
,
5291 .init
= wpa_driver_nl80211_init
,
5292 .deinit
= wpa_driver_nl80211_deinit
,
5293 .get_capa
= wpa_driver_nl80211_get_capa
,
5294 .set_operstate
= wpa_driver_nl80211_set_operstate
,
5295 .set_supp_port
= wpa_driver_nl80211_set_supp_port
,
5296 .set_country
= wpa_driver_nl80211_set_country
,
5297 .set_beacon
= wpa_driver_nl80211_set_beacon
,
5298 .if_add
= wpa_driver_nl80211_if_add
,
5299 .if_remove
= wpa_driver_nl80211_if_remove
,
5300 .send_mlme
= wpa_driver_nl80211_send_mlme
,
5301 .get_hw_feature_data
= wpa_driver_nl80211_get_hw_feature_data
,
5302 .sta_add
= wpa_driver_nl80211_sta_add
,
5303 .sta_remove
= wpa_driver_nl80211_sta_remove
,
5304 .hapd_send_eapol
= wpa_driver_nl80211_hapd_send_eapol
,
5305 .sta_set_flags
= wpa_driver_nl80211_sta_set_flags
,
5307 .hapd_init
= i802_init
,
5308 .hapd_deinit
= i802_deinit
,
5309 .get_seqnum
= i802_get_seqnum
,
5310 .flush
= i802_flush
,
5311 .read_sta_data
= i802_read_sta_data
,
5312 .sta_deauth
= i802_sta_deauth
,
5313 .sta_disassoc
= i802_sta_disassoc
,
5314 .get_inact_sec
= i802_get_inact_sec
,
5315 .sta_clear_stats
= i802_sta_clear_stats
,
5316 .set_rts
= i802_set_rts
,
5317 .set_frag
= i802_set_frag
,
5318 .set_rate_sets
= i802_set_rate_sets
,
5319 .set_cts_protect
= i802_set_cts_protect
,
5320 .set_preamble
= i802_set_preamble
,
5321 .set_short_slot_time
= i802_set_short_slot_time
,
5322 .set_tx_queue_params
= i802_set_tx_queue_params
,
5323 .set_sta_vlan
= i802_set_sta_vlan
,
5324 .set_wds_sta
= i802_set_wds_sta
,
5325 #endif /* HOSTAPD */
5326 .set_freq
= i802_set_freq
,
5327 .send_action
= wpa_driver_nl80211_send_action
,
5328 .remain_on_channel
= wpa_driver_nl80211_remain_on_channel
,
5329 .cancel_remain_on_channel
=
5330 wpa_driver_nl80211_cancel_remain_on_channel
,
5331 .probe_req_report
= wpa_driver_nl80211_probe_req_report
,
5332 .disable_11b_rates
= wpa_driver_nl80211_disable_11b_rates
,
5333 .deinit_ap
= wpa_driver_nl80211_deinit_ap
,
5334 .resume
= wpa_driver_nl80211_resume
,
5335 .send_ft_action
= nl80211_send_ft_action
,
5336 .signal_monitor
= nl80211_signal_monitor
,
5337 .send_frame
= nl80211_send_frame
,