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nl80211: Use wdev_id in nl80211_create_iface_once()
[thirdparty/hostap.git] / src / drivers / driver_nl80211.c
CommitLineData
3f5285e8 1/*
c5121837 2 * Driver interaction with Linux nl80211/cfg80211
3d9975d5 3 * Copyright (c) 2002-2012, Jouni Malinen <j@w1.fi>
072ad14c
JM		 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>
58f6fbe0 7 * Copyright (c) 2009-2010, Atheros Communications
3f5285e8 8 *
0f3d578e
JM		 9 * This software may be distributed under the terms of the BSD license.
10 * See README for more details.
3f5285e8
JM		 11 */
12
13#include "includes.h"
14#include <sys/ioctl.h>
6859f1cb
BG		 15#include <sys/types.h>
16#include <sys/stat.h>
17#include <fcntl.h>
37b7d082 18#include <net/if.h>
3f5285e8
JM		 19#include <netlink/genl/genl.h>
20#include <netlink/genl/family.h>
21#include <netlink/genl/ctrl.h>
8602b0f2 22#include <linux/rtnetlink.h>
1b648c7e
JM		 23#include <netpacket/packet.h>
24#include <linux/filter.h>
32ab4855 25#include <linux/errqueue.h>
7e45830a 26#include "nl80211_copy.h"
625f587b 27
3f5285e8 28#include "common.h"
1b648c7e 29#include "eloop.h"
f2ed8023 30#include "utils/list.h"
1b648c7e 31#include "common/ieee802_11_defs.h"
9b90955e 32#include "common/ieee802_11_common.h"
f10bfc9a 33#include "l2_packet/l2_packet.h"
e2d02c29 34#include "netlink.h"
34f2f814 35#include "linux_ioctl.h"
e2d02c29
JM		 36#include "radiotap.h"
37#include "radiotap_iter.h"
8401a6b0 38#include "rfkill.h"
1b648c7e 39#include "driver.h"
0915d02c 40
32ab4855
JB		 41#ifndef SO_WIFI_STATUS
42# if defined(__sparc__)
43# define SO_WIFI_STATUS 0x0025
44# elif defined(__parisc__)
45# define SO_WIFI_STATUS 0x4022
46# else
47# define SO_WIFI_STATUS 41
48# endif
49
50# define SCM_WIFI_STATUS SO_WIFI_STATUS
51#endif
52
53#ifndef SO_EE_ORIGIN_TXSTATUS
54#define SO_EE_ORIGIN_TXSTATUS 4
55#endif
56
57#ifndef PACKET_TX_TIMESTAMP
58#define PACKET_TX_TIMESTAMP 16
59#endif
60
216eede8
DS		 61#ifdef ANDROID
62#include "android_drv.h"
63#endif /* ANDROID */
c5121837
JM		 64#ifdef CONFIG_LIBNL20
65/* libnl 2.0 compatibility code */
2e8eac2d 66#define nl_handle nl_sock
a65a9aed
JB		 67#define nl80211_handle_alloc nl_socket_alloc_cb
68#define nl80211_handle_destroy nl_socket_free
69#else
70/*
71 * libnl 1.1 has a bug, it tries to allocate socket numbers densely
72 * but when you free a socket again it will mess up its bitmap and
73 * and use the wrong number the next time it needs a socket ID.
74 * Therefore, we wrap the handle alloc/destroy and add our own pid
75 * accounting.
76 */
77static uint32_t port_bitmap[32] = { 0 };
78
79static struct nl_handle *nl80211_handle_alloc(void *cb)
80{
81 struct nl_handle *handle;
82 uint32_t pid = getpid() & 0x3FFFFF;
83 int i;
84
85 handle = nl_handle_alloc_cb(cb);
86
87 for (i = 0; i < 1024; i++) {
88 if (port_bitmap[i / 32] & (1 << (i % 32)))
89 continue;
90 port_bitmap[i / 32] |= 1 << (i % 32);
91 pid += i << 22;
92 break;
93 }
94
95 nl_socket_set_local_port(handle, pid);
96
97 return handle;
98}
99
100static void nl80211_handle_destroy(struct nl_handle *handle)
101{
102 uint32_t port = nl_socket_get_local_port(handle);
103
104 port >>= 22;
105 port_bitmap[port / 32] &= ~(1 << (port % 32));
106
107 nl_handle_destroy(handle);
108}
c5121837
JM		 109#endif /* CONFIG_LIBNL20 */
110
c5121837 111
481234cf 112static struct nl_handle * nl_create_handle(struct nl_cb *cb, const char *dbg)
a92dfde8 113{
481234cf 114 struct nl_handle *handle;
a92dfde8 115
481234cf
JM		 116 handle = nl80211_handle_alloc(cb);
117 if (handle == NULL) {
a92dfde8
JB		 118 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
119 "callbacks (%s)", dbg);
481234cf 120 return NULL;
a92dfde8
JB		 121 }
122
481234cf 123 if (genl_connect(handle)) {
a92dfde8
JB		 124 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
125 "netlink (%s)", dbg);
481234cf
JM		 126 nl80211_handle_destroy(handle);
127 return NULL;
a92dfde8
JB		 128 }
129
481234cf 130 return handle;
a92dfde8
JB		 131}
132
133
481234cf 134static void nl_destroy_handles(struct nl_handle **handle)
a92dfde8 135{
481234cf 136 if (*handle == NULL)
a92dfde8 137 return;
481234cf
JM		 138 nl80211_handle_destroy(*handle);
139 *handle = NULL;
a92dfde8
JB		 140}
141
142
3f5285e8
JM		 143#ifndef IFF_LOWER_UP
144#define IFF_LOWER_UP 0x10000 /* driver signals L1 up */
145#endif
146#ifndef IFF_DORMANT
147#define IFF_DORMANT 0x20000 /* driver signals dormant */
148#endif
149
150#ifndef IF_OPER_DORMANT
151#define IF_OPER_DORMANT 5
152#endif
153#ifndef IF_OPER_UP
154#define IF_OPER_UP 6
155#endif
156
f2ed8023
JM		 157struct nl80211_global {
158 struct dl_list interfaces;
ff6a158b 159 int if_add_ifindex;
f632e483
AS		 160 u64 if_add_wdevid;
161 int if_add_wdevid_set;
36d84860 162 struct netlink_data *netlink;
2a7b66f5 163 struct nl_cb *nl_cb;
481234cf 164 struct nl_handle *nl;
335d42b1 165 int nl80211_id;
c81eff1a 166 int ioctl_sock; /* socket for ioctl() use */
d6c9aab8 167
481234cf 168 struct nl_handle *nl_event;
f2ed8023
JM		 169};
170
e32ad281
JB		 171struct nl80211_wiphy_data {
172 struct dl_list list;
173 struct dl_list bsss;
174 struct dl_list drvs;
175
481234cf 176 struct nl_handle *nl_beacons;
e32ad281
JB		 177 struct nl_cb *nl_cb;
178
179 int wiphy_idx;
180};
181
36d84860
BG		 182static void nl80211_global_deinit(void *priv);
183
c5121837 184struct i802_bss {
a2e40bb6 185 struct wpa_driver_nl80211_data *drv;
c5121837 186 struct i802_bss *next;
b4fd6fab 187 int ifindex;
d3aaef80 188 u64 wdev_id;
a2e40bb6 189 char ifname[IFNAMSIZ + 1];
e17a2477 190 char brname[IFNAMSIZ];
c5121837 191 unsigned int beacon_set:1;
e17a2477
JM		 192 unsigned int added_if_into_bridge:1;
193 unsigned int added_bridge:1;
873d0fcf 194 unsigned int in_deinit:1;
d3aaef80 195 unsigned int wdev_id_set:1;
221a59c9 196
341eebee
JB		 197 u8 addr[ETH_ALEN];
198
e4fb2167
JB		 199 int freq;
200
a5e1eb20 201 void *ctx;
481234cf 202 struct nl_handle *nl_preq, *nl_mgmt;
cc7a48d1 203 struct nl_cb *nl_cb;
e32ad281
JB		 204
205 struct nl80211_wiphy_data *wiphy_data;
206 struct dl_list wiphy_list;
c5121837 207};
3f5285e8
JM		 208
209struct wpa_driver_nl80211_data {
f2ed8023
JM		 210 struct nl80211_global *global;
211 struct dl_list list;
e32ad281 212 struct dl_list wiphy_list;
6859f1cb 213 char phyname[32];
3f5285e8 214 void *ctx;
3f5285e8 215 int ifindex;
7524cfb1 216 int if_removed;
a63063b4 217 int if_disabled;
7d9c3698 218 int ignore_if_down_event;
8401a6b0 219 struct rfkill_data *rfkill;
c2a04078 220 struct wpa_driver_capa capa;
8cd6b7bc
JB		 221 u8 *extended_capa, *extended_capa_mask;
222 unsigned int extended_capa_len;
c2a04078 223 int has_capability;
c2a04078 224
3f5285e8
JM		 225 int operstate;
226
3f5285e8
JM		 227 int scan_complete_events;
228
1afc986d 229 struct nl_cb *nl_cb;
1c873584 230
e6b8efeb 231 u8 auth_bssid[ETH_ALEN];
add9b7a4 232 u8 auth_attempt_bssid[ETH_ALEN];
c2a04078 233 u8 bssid[ETH_ALEN];
add9b7a4 234 u8 prev_bssid[ETH_ALEN];
c2a04078 235 int associated;
fd05d64e
JM		 236 u8 ssid[32];
237 size_t ssid_len;
b1f625e0
EP		 238 enum nl80211_iftype nlmode;
239 enum nl80211_iftype ap_scan_as_station;
4832ecd7 240 unsigned int assoc_freq;
d2440ba0 241
0915d02c
JM		 242 int monitor_sock;
243 int monitor_ifidx;
3fd1cefb 244 int monitor_refcount;
7da3abe7 245
b3af99d2 246 unsigned int disabled_11b_rates:1;
55777702 247 unsigned int pending_remain_on_chan:1;
dac12351 248 unsigned int in_interface_list:1;
61cbe2ff 249 unsigned int device_ap_sme:1;
39718852 250 unsigned int poll_command_supported:1;
32ab4855 251 unsigned int data_tx_status:1;
536fd62d
JM		 252 unsigned int scan_for_auth:1;
253 unsigned int retry_auth:1;
a11241fa 254 unsigned int use_monitor:1;
a8c5b43a 255 unsigned int ignore_next_local_disconnect:1;
55777702
JM		 256
257 u64 remain_on_chan_cookie;
58f6fbe0 258 u64 send_action_cookie;
c5121837 259
5582a5d1
JB		 260 unsigned int last_mgmt_freq;
261
3812464c
JM		 262 struct wpa_driver_scan_filter *filter_ssids;
263 size_t num_filter_ssids;
264
a2e40bb6
FF		 265 struct i802_bss first_bss;
266
d12dab4c 267 int eapol_tx_sock;
f10bfc9a 268
c5121837 269#ifdef HOSTAPD
c5121837 270 int eapol_sock; /* socket for EAPOL frames */
c5121837
JM		 271
272 int default_if_indices[16];
273 int *if_indices;
274 int num_if_indices;
275
c5121837
JM		 276 int last_freq;
277 int last_freq_ht;
c5121837 278#endif /* HOSTAPD */
536fd62d
JM		 279
280 /* From failed authentication command */
281 int auth_freq;
282 u8 auth_bssid_[ETH_ALEN];
283 u8 auth_ssid[32];
284 size_t auth_ssid_len;
285 int auth_alg;
286 u8 *auth_ie;
287 size_t auth_ie_len;
288 u8 auth_wep_key[4][16];
289 size_t auth_wep_key_len[4];
290 int auth_wep_tx_keyidx;
291 int auth_local_state_change;
292 int auth_p2p;
3f5285e8
JM		 293};
294
295
9ebce9c5 296static void wpa_driver_nl80211_deinit(struct i802_bss *bss);
3f5285e8
JM		 297static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx,
298 void *timeout_ctx);
b1f625e0
EP		 299static int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
300 enum nl80211_iftype nlmode);
362f781e 301static int
7524cfb1 302wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv);
d72aad94 303static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
77339912
JM		 304 const u8 *addr, int cmd, u16 reason_code,
305 int local_state_change);
460456f8
JM		 306static void nl80211_remove_monitor_interface(
307 struct wpa_driver_nl80211_data *drv);
88df0ef7 308static int nl80211_send_frame_cmd(struct i802_bss *bss,
5dfca53f 309 unsigned int freq, unsigned int wait,
b106173a 310 const u8 *buf, size_t buf_len, u64 *cookie,
88df0ef7 311 int no_cck, int no_ack, int offchanok);
9ebce9c5
JM		 312static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss,
313 int report);
216eede8
DS		 314#ifdef ANDROID
315static int android_pno_start(struct i802_bss *bss,
316 struct wpa_driver_scan_params *params);
317static int android_pno_stop(struct i802_bss *bss);
318#endif /* ANDROID */
0915d02c 319
072ad14c 320#ifdef HOSTAPD
2135f224
JM		 321static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
322static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
97cfcf64 323static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
9ebce9c5 324static int wpa_driver_nl80211_if_remove(struct i802_bss *bss,
fbbfcbac
FF		 325 enum wpa_driver_if_type type,
326 const char *ifname);
37eb8da9 327#else /* HOSTAPD */
bd2df892
JM		 328static inline void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
329{
330}
331
332static inline void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
333{
334}
335
336static inline int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
37eb8da9
JM		 337{
338 return 0;
339}
072ad14c
JM		 340#endif /* HOSTAPD */
341
9ebce9c5
JM		 342static int wpa_driver_nl80211_set_freq(struct i802_bss *bss,
343 struct hostapd_freq_params *freq);
4e5cb1a3
JM		 344static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
345 int ifindex, int disabled);
504e905c 346
21bdbe38 347static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv);
536fd62d
JM		 348static int wpa_driver_nl80211_authenticate_retry(
349 struct wpa_driver_nl80211_data *drv);
21bdbe38 350
3f5285e8 351
2090a0b4
DS		 352static const char * nl80211_command_to_string(enum nl80211_commands cmd)
353{
354#define C2S(x) case x: return #x;
355 switch (cmd) {
356 C2S(NL80211_CMD_UNSPEC)
357 C2S(NL80211_CMD_GET_WIPHY)
358 C2S(NL80211_CMD_SET_WIPHY)
359 C2S(NL80211_CMD_NEW_WIPHY)
360 C2S(NL80211_CMD_DEL_WIPHY)
361 C2S(NL80211_CMD_GET_INTERFACE)
362 C2S(NL80211_CMD_SET_INTERFACE)
363 C2S(NL80211_CMD_NEW_INTERFACE)
364 C2S(NL80211_CMD_DEL_INTERFACE)
365 C2S(NL80211_CMD_GET_KEY)
366 C2S(NL80211_CMD_SET_KEY)
367 C2S(NL80211_CMD_NEW_KEY)
368 C2S(NL80211_CMD_DEL_KEY)
369 C2S(NL80211_CMD_GET_BEACON)
370 C2S(NL80211_CMD_SET_BEACON)
371 C2S(NL80211_CMD_START_AP)
372 C2S(NL80211_CMD_STOP_AP)
373 C2S(NL80211_CMD_GET_STATION)
374 C2S(NL80211_CMD_SET_STATION)
375 C2S(NL80211_CMD_NEW_STATION)
376 C2S(NL80211_CMD_DEL_STATION)
377 C2S(NL80211_CMD_GET_MPATH)
378 C2S(NL80211_CMD_SET_MPATH)
379 C2S(NL80211_CMD_NEW_MPATH)
380 C2S(NL80211_CMD_DEL_MPATH)
381 C2S(NL80211_CMD_SET_BSS)
382 C2S(NL80211_CMD_SET_REG)
383 C2S(NL80211_CMD_REQ_SET_REG)
384 C2S(NL80211_CMD_GET_MESH_CONFIG)
385 C2S(NL80211_CMD_SET_MESH_CONFIG)
386 C2S(NL80211_CMD_SET_MGMT_EXTRA_IE)
387 C2S(NL80211_CMD_GET_REG)
388 C2S(NL80211_CMD_GET_SCAN)
389 C2S(NL80211_CMD_TRIGGER_SCAN)
390 C2S(NL80211_CMD_NEW_SCAN_RESULTS)
391 C2S(NL80211_CMD_SCAN_ABORTED)
392 C2S(NL80211_CMD_REG_CHANGE)
393 C2S(NL80211_CMD_AUTHENTICATE)
394 C2S(NL80211_CMD_ASSOCIATE)
395 C2S(NL80211_CMD_DEAUTHENTICATE)
396 C2S(NL80211_CMD_DISASSOCIATE)
397 C2S(NL80211_CMD_MICHAEL_MIC_FAILURE)
398 C2S(NL80211_CMD_REG_BEACON_HINT)
399 C2S(NL80211_CMD_JOIN_IBSS)
400 C2S(NL80211_CMD_LEAVE_IBSS)
401 C2S(NL80211_CMD_TESTMODE)
402 C2S(NL80211_CMD_CONNECT)
403 C2S(NL80211_CMD_ROAM)
404 C2S(NL80211_CMD_DISCONNECT)
405 C2S(NL80211_CMD_SET_WIPHY_NETNS)
406 C2S(NL80211_CMD_GET_SURVEY)
407 C2S(NL80211_CMD_NEW_SURVEY_RESULTS)
408 C2S(NL80211_CMD_SET_PMKSA)
409 C2S(NL80211_CMD_DEL_PMKSA)
410 C2S(NL80211_CMD_FLUSH_PMKSA)
411 C2S(NL80211_CMD_REMAIN_ON_CHANNEL)
412 C2S(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL)
413 C2S(NL80211_CMD_SET_TX_BITRATE_MASK)
414 C2S(NL80211_CMD_REGISTER_FRAME)
415 C2S(NL80211_CMD_FRAME)
416 C2S(NL80211_CMD_FRAME_TX_STATUS)
417 C2S(NL80211_CMD_SET_POWER_SAVE)
418 C2S(NL80211_CMD_GET_POWER_SAVE)
419 C2S(NL80211_CMD_SET_CQM)
420 C2S(NL80211_CMD_NOTIFY_CQM)
421 C2S(NL80211_CMD_SET_CHANNEL)
422 C2S(NL80211_CMD_SET_WDS_PEER)
423 C2S(NL80211_CMD_FRAME_WAIT_CANCEL)
424 C2S(NL80211_CMD_JOIN_MESH)
425 C2S(NL80211_CMD_LEAVE_MESH)
426 C2S(NL80211_CMD_UNPROT_DEAUTHENTICATE)
427 C2S(NL80211_CMD_UNPROT_DISASSOCIATE)
428 C2S(NL80211_CMD_NEW_PEER_CANDIDATE)
429 C2S(NL80211_CMD_GET_WOWLAN)
430 C2S(NL80211_CMD_SET_WOWLAN)
431 C2S(NL80211_CMD_START_SCHED_SCAN)
432 C2S(NL80211_CMD_STOP_SCHED_SCAN)
433 C2S(NL80211_CMD_SCHED_SCAN_RESULTS)
434 C2S(NL80211_CMD_SCHED_SCAN_STOPPED)
435 C2S(NL80211_CMD_SET_REKEY_OFFLOAD)
436 C2S(NL80211_CMD_PMKSA_CANDIDATE)
437 C2S(NL80211_CMD_TDLS_OPER)
438 C2S(NL80211_CMD_TDLS_MGMT)
439 C2S(NL80211_CMD_UNEXPECTED_FRAME)
440 C2S(NL80211_CMD_PROBE_CLIENT)
441 C2S(NL80211_CMD_REGISTER_BEACONS)
442 C2S(NL80211_CMD_UNEXPECTED_4ADDR_FRAME)
443 C2S(NL80211_CMD_SET_NOACK_MAP)
444 C2S(NL80211_CMD_CH_SWITCH_NOTIFY)
445 C2S(NL80211_CMD_START_P2P_DEVICE)
446 C2S(NL80211_CMD_STOP_P2P_DEVICE)
447 C2S(NL80211_CMD_CONN_FAILED)
448 C2S(NL80211_CMD_SET_MCAST_RATE)
449 C2S(NL80211_CMD_SET_MAC_ACL)
450 C2S(NL80211_CMD_RADAR_DETECT)
451 C2S(NL80211_CMD_GET_PROTOCOL_FEATURES)
452 C2S(NL80211_CMD_UPDATE_FT_IES)
453 C2S(NL80211_CMD_FT_EVENT)
454 C2S(NL80211_CMD_CRIT_PROTOCOL_START)
455 C2S(NL80211_CMD_CRIT_PROTOCOL_STOP)
456 default:
457 return "NL80211_CMD_UNKNOWN";
458 }
459#undef C2S
460}
461
462
b1f625e0
EP		 463static int is_ap_interface(enum nl80211_iftype nlmode)
464{
465 return (nlmode == NL80211_IFTYPE_AP ||
466 nlmode == NL80211_IFTYPE_P2P_GO);
467}
468
469
470static int is_sta_interface(enum nl80211_iftype nlmode)
471{
472 return (nlmode == NL80211_IFTYPE_STATION ||
473 nlmode == NL80211_IFTYPE_P2P_CLIENT);
474}
475
476
6a71413e 477static int is_p2p_net_interface(enum nl80211_iftype nlmode)
b3af99d2
JM		 478{
479 return (nlmode == NL80211_IFTYPE_P2P_CLIENT ||
480 nlmode == NL80211_IFTYPE_P2P_GO);
481}
482
483
add9b7a4
JM		 484static void nl80211_mark_disconnected(struct wpa_driver_nl80211_data *drv)
485{
486 if (drv->associated)
487 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN);
488 drv->associated = 0;
489 os_memset(drv->bssid, 0, ETH_ALEN);
490}
491
492
f5a8d422
JM		 493struct nl80211_bss_info_arg {
494 struct wpa_driver_nl80211_data *drv;
495 struct wpa_scan_results *res;
496 unsigned int assoc_freq;
20f5a4c2 497 u8 assoc_bssid[ETH_ALEN];
f5a8d422
JM		 498};
499
500static int bss_info_handler(struct nl_msg *msg, void *arg);
501
502
6241fcb1
JM		 503/* nl80211 code */
504static int ack_handler(struct nl_msg *msg, void *arg)
505{
506 int *err = arg;
507 *err = 0;
508 return NL_STOP;
509}
510
511static int finish_handler(struct nl_msg *msg, void *arg)
512{
8e8df255
JM		 513 int *ret = arg;
514 *ret = 0;
6241fcb1
JM		 515 return NL_SKIP;
516}
517
518static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err,
519 void *arg)
520{
521 int *ret = arg;
522 *ret = err->error;
523 return NL_SKIP;
524}
525
5b7b85f6
JM		 526
527static int no_seq_check(struct nl_msg *msg, void *arg)
528{
529 return NL_OK;
530}
531
532
d6c9aab8 533static int send_and_recv(struct nl80211_global *global,
58f6fbe0
JM		 534 struct nl_handle *nl_handle, struct nl_msg *msg,
535 int (*valid_handler)(struct nl_msg *, void *),
536 void *valid_data)
6241fcb1
JM		 537{
538 struct nl_cb *cb;
539 int err = -ENOMEM;
540
d6c9aab8 541 cb = nl_cb_clone(global->nl_cb);
6241fcb1
JM		 542 if (!cb)
543 goto out;
544
58f6fbe0 545 err = nl_send_auto_complete(nl_handle, msg);
6241fcb1
JM		 546 if (err < 0)
547 goto out;
548
549 err = 1;
550
551 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
8e8df255 552 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
6241fcb1
JM		 553 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
554
555 if (valid_handler)
556 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM,
557 valid_handler, valid_data);
558
559 while (err > 0)
58f6fbe0 560 nl_recvmsgs(nl_handle, cb);
6241fcb1
JM		 561 out:
562 nl_cb_put(cb);
563 nlmsg_free(msg);
564 return err;
565}
566
567
d6c9aab8
JB		 568static int send_and_recv_msgs_global(struct nl80211_global *global,
569 struct nl_msg *msg,
570 int (*valid_handler)(struct nl_msg *, void *),
571 void *valid_data)
572{
481234cf 573 return send_and_recv(global, global->nl, msg, valid_handler,
d6c9aab8
JB		 574 valid_data);
575}
576
577
58f6fbe0
JM		 578static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv,
579 struct nl_msg *msg,
580 int (*valid_handler)(struct nl_msg *, void *),
581 void *valid_data)
582{
481234cf 583 return send_and_recv(drv->global, drv->global->nl, msg,
d6c9aab8 584 valid_handler, valid_data);
58f6fbe0
JM		 585}
586
587
97865538
JM		 588struct family_data {
589 const char *group;
590 int id;
591};
592
593
d3aaef80
DS		 594static int nl80211_set_iface_id(struct nl_msg *msg, struct i802_bss *bss)
595{
596 if (bss->wdev_id_set)
597 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id);
598 else
599 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
600 return 0;
601
602nla_put_failure:
603 return -1;
604}
605
606
97865538
JM		 607static int family_handler(struct nl_msg *msg, void *arg)
608{
609 struct family_data *res = arg;
610 struct nlattr *tb[CTRL_ATTR_MAX + 1];
611 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
612 struct nlattr *mcgrp;
613 int i;
614
615 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
616 genlmsg_attrlen(gnlh, 0), NULL);
617 if (!tb[CTRL_ATTR_MCAST_GROUPS])
618 return NL_SKIP;
619
620 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) {
621 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1];
622 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp),
623 nla_len(mcgrp), NULL);
624 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] ||
625 !tb2[CTRL_ATTR_MCAST_GRP_ID] ||
626 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]),
627 res->group,
628 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0)
629 continue;
630 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]);
631 break;
632 };
633
634 return NL_SKIP;
635}
636
637
d6c9aab8 638static int nl_get_multicast_id(struct nl80211_global *global,
97865538
JM		 639 const char *family, const char *group)
640{
641 struct nl_msg *msg;
642 int ret = -1;
643 struct family_data res = { group, -ENOENT };
644
645 msg = nlmsg_alloc();
646 if (!msg)
647 return -ENOMEM;
481234cf 648 genlmsg_put(msg, 0, 0, genl_ctrl_resolve(global->nl, "nlctrl"),
97865538
JM		 649 0, 0, CTRL_CMD_GETFAMILY, 0);
650 NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family);
651
d6c9aab8 652 ret = send_and_recv_msgs_global(global, msg, family_handler, &res);
97865538
JM		 653 msg = NULL;
654 if (ret == 0)
655 ret = res.id;
656
657nla_put_failure:
658 nlmsg_free(msg);
659 return ret;
660}
661
662
9fb04070
JM		 663static void * nl80211_cmd(struct wpa_driver_nl80211_data *drv,
664 struct nl_msg *msg, int flags, uint8_t cmd)
665{
335d42b1 666 return genlmsg_put(msg, 0, 0, drv->global->nl80211_id,
276e2d67 667 0, flags, cmd, 0);
9fb04070
JM		 668}
669
670
e32ad281
JB		 671struct wiphy_idx_data {
672 int wiphy_idx;
01517c8b 673 enum nl80211_iftype nlmode;
597b94f5 674 u8 *macaddr;
e32ad281
JB		 675};
676
677
678static int netdev_info_handler(struct nl_msg *msg, void *arg)
679{
680 struct nlattr *tb[NL80211_ATTR_MAX + 1];
681 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
682 struct wiphy_idx_data *info = arg;
683
684 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
685 genlmsg_attrlen(gnlh, 0), NULL);
686
687 if (tb[NL80211_ATTR_WIPHY])
688 info->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
689
01517c8b
JB		 690 if (tb[NL80211_ATTR_IFTYPE])
691 info->nlmode = nla_get_u32(tb[NL80211_ATTR_IFTYPE]);
692
597b94f5
AS		 693 if (tb[NL80211_ATTR_MAC] && info->macaddr)
694 os_memcpy(info->macaddr, nla_data(tb[NL80211_ATTR_MAC]),
695 ETH_ALEN);
696
e32ad281
JB		 697 return NL_SKIP;
698}
699
700
701static int nl80211_get_wiphy_index(struct i802_bss *bss)
702{
703 struct nl_msg *msg;
704 struct wiphy_idx_data data = {
705 .wiphy_idx = -1,
597b94f5 706 .macaddr = NULL,
e32ad281
JB		 707 };
708
709 msg = nlmsg_alloc();
710 if (!msg)
8e12685c 711 return NL80211_IFTYPE_UNSPECIFIED;
e32ad281
JB		 712
713 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE);
714
715 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
716
717 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0)
718 return data.wiphy_idx;
719 msg = NULL;
720nla_put_failure:
721 nlmsg_free(msg);
722 return -1;
723}
724
725
01517c8b
JB		 726static enum nl80211_iftype nl80211_get_ifmode(struct i802_bss *bss)
727{
728 struct nl_msg *msg;
729 struct wiphy_idx_data data = {
597b94f5
AS		 730 .nlmode = NL80211_IFTYPE_UNSPECIFIED,
731 .macaddr = NULL,
01517c8b
JB		 732 };
733
734 msg = nlmsg_alloc();
735 if (!msg)
736 return -1;
737
738 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE);
739
f632e483
AS		 740 if (nl80211_set_iface_id(msg, bss) < 0)
741 goto nla_put_failure;
01517c8b
JB		 742
743 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0)
744 return data.nlmode;
745 msg = NULL;
746nla_put_failure:
747 nlmsg_free(msg);
748 return NL80211_IFTYPE_UNSPECIFIED;
749}
01517c8b
JB		 750
751
597b94f5
AS		 752#ifndef HOSTAPD
753static int nl80211_get_macaddr(struct i802_bss *bss)
754{
755 struct nl_msg *msg;
756 struct wiphy_idx_data data = {
757 .macaddr = bss->addr,
758 };
759
760 msg = nlmsg_alloc();
761 if (!msg)
762 return NL80211_IFTYPE_UNSPECIFIED;
763
764 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE);
765 if (nl80211_set_iface_id(msg, bss) < 0)
766 goto nla_put_failure;
767
768 return send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data);
769
770nla_put_failure:
771 nlmsg_free(msg);
772 return NL80211_IFTYPE_UNSPECIFIED;
773}
774#endif /* HOSTAPD */
775
776
e32ad281
JB		 777static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv,
778 struct nl80211_wiphy_data *w)
779{
780 struct nl_msg *msg;
781 int ret = -1;
782
783 msg = nlmsg_alloc();
784 if (!msg)
785 return -1;
786
787 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_BEACONS);
788
789 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, w->wiphy_idx);
790
481234cf 791 ret = send_and_recv(drv->global, w->nl_beacons, msg, NULL, NULL);
e32ad281
JB		 792 msg = NULL;
793 if (ret) {
794 wpa_printf(MSG_DEBUG, "nl80211: Register beacons command "
795 "failed: ret=%d (%s)",
796 ret, strerror(-ret));
797 goto nla_put_failure;
798 }
799 ret = 0;
800nla_put_failure:
801 nlmsg_free(msg);
802 return ret;
803}
804
805
806static void nl80211_recv_beacons(int sock, void *eloop_ctx, void *handle)
807{
808 struct nl80211_wiphy_data *w = eloop_ctx;
809
ee9fc67a 810 wpa_printf(MSG_EXCESSIVE, "nl80211: Beacon event message available");
e32ad281
JB		 811
812 nl_recvmsgs(handle, w->nl_cb);
813}
814
815
816static int process_beacon_event(struct nl_msg *msg, void *arg)
817{
818 struct nl80211_wiphy_data *w = arg;
819 struct wpa_driver_nl80211_data *drv;
820 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
821 struct nlattr *tb[NL80211_ATTR_MAX + 1];
822 union wpa_event_data event;
823
824 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
825 genlmsg_attrlen(gnlh, 0), NULL);
826
827 if (gnlh->cmd != NL80211_CMD_FRAME) {
828 wpa_printf(MSG_DEBUG, "nl80211: Unexpected beacon event? (%d)",
829 gnlh->cmd);
830 return NL_SKIP;
831 }
832
833 if (!tb[NL80211_ATTR_FRAME])
834 return NL_SKIP;
835
836 dl_list_for_each(drv, &w->drvs, struct wpa_driver_nl80211_data,
837 wiphy_list) {
838 os_memset(&event, 0, sizeof(event));
839 event.rx_mgmt.frame = nla_data(tb[NL80211_ATTR_FRAME]);
840 event.rx_mgmt.frame_len = nla_len(tb[NL80211_ATTR_FRAME]);
841 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
842 }
843
844 return NL_SKIP;
845}
846
847
848static struct nl80211_wiphy_data *
849nl80211_get_wiphy_data_ap(struct i802_bss *bss)
850{
851 static DEFINE_DL_LIST(nl80211_wiphys);
852 struct nl80211_wiphy_data *w;
853 int wiphy_idx, found = 0;
854 struct i802_bss *tmp_bss;
855
856 if (bss->wiphy_data != NULL)
857 return bss->wiphy_data;
858
859 wiphy_idx = nl80211_get_wiphy_index(bss);
860
861 dl_list_for_each(w, &nl80211_wiphys, struct nl80211_wiphy_data, list) {
862 if (w->wiphy_idx == wiphy_idx)
863 goto add;
864 }
865
866 /* alloc new one */
867 w = os_zalloc(sizeof(*w));
868 if (w == NULL)
869 return NULL;
870 w->wiphy_idx = wiphy_idx;
871 dl_list_init(&w->bsss);
872 dl_list_init(&w->drvs);
873
874 w->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
875 if (!w->nl_cb) {
876 os_free(w);
877 return NULL;
878 }
879 nl_cb_set(w->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL);
880 nl_cb_set(w->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_beacon_event,
881 w);
882
481234cf
JM		 883 w->nl_beacons = nl_create_handle(bss->drv->global->nl_cb,
884 "wiphy beacons");
885 if (w->nl_beacons == NULL) {
e32ad281
JB		 886 os_free(w);
887 return NULL;
888 }
889
890 if (nl80211_register_beacons(bss->drv, w)) {
891 nl_destroy_handles(&w->nl_beacons);
892 os_free(w);
893 return NULL;
894 }
895
481234cf
JM		 896 eloop_register_read_sock(nl_socket_get_fd(w->nl_beacons),
897 nl80211_recv_beacons, w, w->nl_beacons);
e32ad281
JB		 898
899 dl_list_add(&nl80211_wiphys, &w->list);
900
901add:
902 /* drv entry for this bss already there? */
903 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) {
904 if (tmp_bss->drv == bss->drv) {
905 found = 1;
906 break;
907 }
908 }
909 /* if not add it */
910 if (!found)
911 dl_list_add(&w->drvs, &bss->drv->wiphy_list);
912
913 dl_list_add(&w->bsss, &bss->wiphy_list);
914 bss->wiphy_data = w;
915 return w;
916}
917
918
919static void nl80211_put_wiphy_data_ap(struct i802_bss *bss)
920{
921 struct nl80211_wiphy_data *w = bss->wiphy_data;
922 struct i802_bss *tmp_bss;
923 int found = 0;
924
925 if (w == NULL)
926 return;
927 bss->wiphy_data = NULL;
928 dl_list_del(&bss->wiphy_list);
929
930 /* still any for this drv present? */
931 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) {
932 if (tmp_bss->drv == bss->drv) {
933 found = 1;
934 break;
935 }
936 }
937 /* if not remove it */
938 if (!found)
939 dl_list_del(&bss->drv->wiphy_list);
940
941 if (!dl_list_empty(&w->bsss))
942 return;
943
481234cf 944 eloop_unregister_read_sock(nl_socket_get_fd(w->nl_beacons));
e32ad281
JB		 945
946 nl_cb_put(w->nl_cb);
947 nl_destroy_handles(&w->nl_beacons);
948 dl_list_del(&w->list);
949 os_free(w);
950}
951
952
3f5285e8
JM		 953static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid)
954{
a2e40bb6
FF		 955 struct i802_bss *bss = priv;
956 struct wpa_driver_nl80211_data *drv = bss->drv;
c2a04078
JM		 957 if (!drv->associated)
958 return -1;
959 os_memcpy(bssid, drv->bssid, ETH_ALEN);
960 return 0;
3f5285e8
JM		 961}
962
963
3f5285e8
JM		 964static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid)
965{
a2e40bb6
FF		 966 struct i802_bss *bss = priv;
967 struct wpa_driver_nl80211_data *drv = bss->drv;
fd05d64e
JM		 968 if (!drv->associated)
969 return -1;
970 os_memcpy(ssid, drv->ssid, drv->ssid_len);
971 return drv->ssid_len;
3f5285e8
JM		 972}
973
974
7524cfb1 975static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv,
08063178 976 char *buf, size_t len, int del)
3f5285e8
JM		 977{
978 union wpa_event_data event;
979
980 os_memset(&event, 0, sizeof(event));
981 if (len > sizeof(event.interface_status.ifname))
982 len = sizeof(event.interface_status.ifname) - 1;
983 os_memcpy(event.interface_status.ifname, buf, len);
984 event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED :
985 EVENT_INTERFACE_ADDED;
986
987 wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s",
988 del ? "DEL" : "NEW",
989 event.interface_status.ifname,
990 del ? "removed" : "added");
991
a2e40bb6 992 if (os_strcmp(drv->first_bss.ifname, event.interface_status.ifname) == 0) {
d1f4942b
JM		 993 if (del) {
994 if (drv->if_removed) {
995 wpa_printf(MSG_DEBUG, "nl80211: if_removed "
996 "already set - ignore event");
997 return;
998 }
7524cfb1 999 drv->if_removed = 1;
d1f4942b
JM		 1000 } else {
1001 if (if_nametoindex(drv->first_bss.ifname) == 0) {
1002 wpa_printf(MSG_DEBUG, "nl80211: Interface %s "
1003 "does not exist - ignore "
1004 "RTM_NEWLINK",
1005 drv->first_bss.ifname);
1006 return;
1007 }
1008 if (!drv->if_removed) {
1009 wpa_printf(MSG_DEBUG, "nl80211: if_removed "
1010 "already cleared - ignore event");
1011 return;
1012 }
7524cfb1 1013 drv->if_removed = 0;
d1f4942b 1014 }
7524cfb1
JM		 1015 }
1016
08063178 1017 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event);
3f5285e8
JM		 1018}
1019
1020
7524cfb1 1021static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv,
62d680c3 1022 u8 *buf, size_t len)
7524cfb1 1023{
62d680c3 1024 int attrlen, rta_len;
7524cfb1
JM		 1025 struct rtattr *attr;
1026
62d680c3
JM		 1027 attrlen = len;
1028 attr = (struct rtattr *) buf;
7524cfb1
JM		 1029
1030 rta_len = RTA_ALIGN(sizeof(struct rtattr));
1031 while (RTA_OK(attr, attrlen)) {
1032 if (attr->rta_type == IFLA_IFNAME) {
a2e40bb6 1033 if (os_strcmp(((char *) attr) + rta_len, drv->first_bss.ifname)
7524cfb1
JM		 1034 == 0)
1035 return 1;
1036 else
1037 break;
1038 }
1039 attr = RTA_NEXT(attr, attrlen);
1040 }
1041
1042 return 0;
1043}
1044
1045
1046static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv,
62d680c3 1047 int ifindex, u8 *buf, size_t len)
7524cfb1
JM		 1048{
1049 if (drv->ifindex == ifindex)
1050 return 1;
1051
62d680c3 1052 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) {
a2e40bb6 1053 drv->first_bss.ifindex = if_nametoindex(drv->first_bss.ifname);
7524cfb1
JM		 1054 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed "
1055 "interface");
1056 wpa_driver_nl80211_finish_drv_init(drv);
1057 return 1;
1058 }
1059
1060 return 0;
1061}
1062
1063
36d84860
BG		 1064static struct wpa_driver_nl80211_data *
1065nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len)
1066{
1067 struct wpa_driver_nl80211_data *drv;
1068 dl_list_for_each(drv, &global->interfaces,
1069 struct wpa_driver_nl80211_data, list) {
1070 if (wpa_driver_nl80211_own_ifindex(drv, idx, buf, len) ||
1071 have_ifidx(drv, idx))
1072 return drv;
1073 }
1074 return NULL;
1075}
1076
1077
62d680c3
JM		 1078static void wpa_driver_nl80211_event_rtm_newlink(void *ctx,
1079 struct ifinfomsg *ifi,
1080 u8 *buf, size_t len)
3f5285e8 1081{
36d84860
BG		 1082 struct nl80211_global *global = ctx;
1083 struct wpa_driver_nl80211_data *drv;
62d680c3
JM		 1084 int attrlen, rta_len;
1085 struct rtattr *attr;
97cfcf64 1086 u32 brid = 0;
aef85ba2 1087 char namebuf[IFNAMSIZ];
3f5285e8 1088
36d84860
BG		 1089 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len);
1090 if (!drv) {
97cfcf64
B		 1091 wpa_printf(MSG_DEBUG, "nl80211: Ignore event for foreign "
1092 "ifindex %d", ifi->ifi_index);
3f5285e8
JM		 1093 return;
1094 }
1095
1096 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x "
1097 "(%s%s%s%s)",
1098 drv->operstate, ifi->ifi_flags,
1099 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "",
1100 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "",
1101 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "",
1102 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : "");
a63063b4
JM		 1103
1104 if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) {
59d24925
JM		 1105 if (if_indextoname(ifi->ifi_index, namebuf) &&
1106 linux_iface_up(drv->global->ioctl_sock,
1107 drv->first_bss.ifname) > 0) {
1108 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down "
1109 "event since interface %s is up", namebuf);
1110 return;
1111 }
a63063b4 1112 wpa_printf(MSG_DEBUG, "nl80211: Interface down");
7d9c3698
JM		 1113 if (drv->ignore_if_down_event) {
1114 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down "
1115 "event generated by mode change");
1116 drv->ignore_if_down_event = 0;
1117 } else {
1118 drv->if_disabled = 1;
1119 wpa_supplicant_event(drv->ctx,
1120 EVENT_INTERFACE_DISABLED, NULL);
1121 }
a63063b4
JM		 1122 }
1123
1124 if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) {
aef85ba2
JM		 1125 if (if_indextoname(ifi->ifi_index, namebuf) &&
1126 linux_iface_up(drv->global->ioctl_sock,
1127 drv->first_bss.ifname) == 0) {
1128 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
1129 "event since interface %s is down",
1130 namebuf);
d1f4942b
JM		 1131 } else if (if_nametoindex(drv->first_bss.ifname) == 0) {
1132 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
1133 "event since interface %s does not exist",
1134 drv->first_bss.ifname);
1135 } else if (drv->if_removed) {
1136 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
1137 "event since interface %s is marked "
1138 "removed", drv->first_bss.ifname);
aef85ba2
JM		 1139 } else {
1140 wpa_printf(MSG_DEBUG, "nl80211: Interface up");
1141 drv->if_disabled = 0;
1142 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED,
1143 NULL);
1144 }
a63063b4
JM		 1145 }
1146
3f5285e8
JM		 1147 /*
1148 * Some drivers send the association event before the operup event--in
1149 * this case, lifting operstate in wpa_driver_nl80211_set_operstate()
1150 * fails. This will hit us when wpa_supplicant does not need to do
1151 * IEEE 802.1X authentication
1152 */
1153 if (drv->operstate == 1 &&
1154 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP &&
1155 !(ifi->ifi_flags & IFF_RUNNING))
36d84860 1156 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex,
e2d02c29 1157 -1, IF_OPER_UP);
3f5285e8 1158
62d680c3
JM		 1159 attrlen = len;
1160 attr = (struct rtattr *) buf;
3f5285e8
JM		 1161 rta_len = RTA_ALIGN(sizeof(struct rtattr));
1162 while (RTA_OK(attr, attrlen)) {
d8816397 1163 if (attr->rta_type == IFLA_IFNAME) {
7524cfb1 1164 wpa_driver_nl80211_event_link(
08063178 1165 drv,
7524cfb1
JM		 1166 ((char *) attr) + rta_len,
1167 attr->rta_len - rta_len, 0);
97cfcf64
B		 1168 } else if (attr->rta_type == IFLA_MASTER)
1169 brid = nla_get_u32((struct nlattr *) attr);
3f5285e8
JM		 1170 attr = RTA_NEXT(attr, attrlen);
1171 }
97cfcf64
B		 1172
1173 if (ifi->ifi_family == AF_BRIDGE && brid) {
1174 /* device has been added to bridge */
97cfcf64
B		 1175 if_indextoname(brid, namebuf);
1176 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s",
1177 brid, namebuf);
1178 add_ifidx(drv, brid);
1179 }
3f5285e8
JM		 1180}
1181
1182
62d680c3
JM		 1183static void wpa_driver_nl80211_event_rtm_dellink(void *ctx,
1184 struct ifinfomsg *ifi,
1185 u8 *buf, size_t len)
3f5285e8 1186{
36d84860
BG		 1187 struct nl80211_global *global = ctx;
1188 struct wpa_driver_nl80211_data *drv;
62d680c3
JM		 1189 int attrlen, rta_len;
1190 struct rtattr *attr;
97cfcf64 1191 u32 brid = 0;
3f5285e8 1192
36d84860
BG		 1193 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len);
1194 if (!drv) {
1195 wpa_printf(MSG_DEBUG, "nl80211: Ignore dellink event for "
1196 "foreign ifindex %d", ifi->ifi_index);
1197 return;
1198 }
1199
62d680c3
JM		 1200 attrlen = len;
1201 attr = (struct rtattr *) buf;
3f5285e8
JM		 1202
1203 rta_len = RTA_ALIGN(sizeof(struct rtattr));
1204 while (RTA_OK(attr, attrlen)) {
1205 if (attr->rta_type == IFLA_IFNAME) {
7524cfb1 1206 wpa_driver_nl80211_event_link(
08063178 1207 drv,
7524cfb1
JM		 1208 ((char *) attr) + rta_len,
1209 attr->rta_len - rta_len, 1);
97cfcf64
B		 1210 } else if (attr->rta_type == IFLA_MASTER)
1211 brid = nla_get_u32((struct nlattr *) attr);
3f5285e8
JM		 1212 attr = RTA_NEXT(attr, attrlen);
1213 }
97cfcf64
B		 1214
1215 if (ifi->ifi_family == AF_BRIDGE && brid) {
1216 /* device has been removed from bridge */
1217 char namebuf[IFNAMSIZ];
1218 if_indextoname(brid, namebuf);
1219 wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge "
1220 "%s", brid, namebuf);
1221 del_ifidx(drv, brid);
1222 }
3f5285e8
JM		 1223}
1224
1225
c2a04078
JM		 1226static void mlme_event_auth(struct wpa_driver_nl80211_data *drv,
1227 const u8 *frame, size_t len)
1228{
1229 const struct ieee80211_mgmt *mgmt;
1230 union wpa_event_data event;
1231
7d81932d 1232 wpa_printf(MSG_DEBUG, "nl80211: Authenticate event");
c2a04078
JM		 1233 mgmt = (const struct ieee80211_mgmt *) frame;
1234 if (len < 24 + sizeof(mgmt->u.auth)) {
1235 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
1236 "frame");
1237 return;
1238 }
1239
e6b8efeb 1240 os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN);
add9b7a4 1241 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN);
c2a04078
JM		 1242 os_memset(&event, 0, sizeof(event));
1243 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN);
1244 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg);
569fed90
JM		 1245 event.auth.auth_transaction =
1246 le_to_host16(mgmt->u.auth.auth_transaction);
c2a04078
JM		 1247 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code);
1248 if (len > 24 + sizeof(mgmt->u.auth)) {
1249 event.auth.ies = mgmt->u.auth.variable;
1250 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth);
1251 }
1252
1253 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event);
1254}
1255
1256
f5a8d422
JM		 1257static unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv)
1258{
1259 struct nl_msg *msg;
1260 int ret;
1261 struct nl80211_bss_info_arg arg;
1262
1263 os_memset(&arg, 0, sizeof(arg));
1264 msg = nlmsg_alloc();
1265 if (!msg)
1266 goto nla_put_failure;
1267
9fb04070 1268 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
f5a8d422
JM		 1269 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1270
1271 arg.drv = drv;
1272 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
1273 msg = NULL;
1274 if (ret == 0) {
1275 wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the "
1276 "associated BSS from scan results: %u MHz",
1277 arg.assoc_freq);
1278 return arg.assoc_freq ? arg.assoc_freq : drv->assoc_freq;
1279 }
1280 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
1281 "(%s)", ret, strerror(-ret));
1282nla_put_failure:
1283 nlmsg_free(msg);
1284 return drv->assoc_freq;
1285}
1286
1287
c2a04078
JM		 1288static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv,
1289 const u8 *frame, size_t len)
1290{
1291 const struct ieee80211_mgmt *mgmt;
1292 union wpa_event_data event;
1293 u16 status;
1294
7d81932d 1295 wpa_printf(MSG_DEBUG, "nl80211: Associate event");
c2a04078
JM		 1296 mgmt = (const struct ieee80211_mgmt *) frame;
1297 if (len < 24 + sizeof(mgmt->u.assoc_resp)) {
1298 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
1299 "frame");
1300 return;
1301 }
1302
1303 status = le_to_host16(mgmt->u.assoc_resp.status_code);
1304 if (status != WLAN_STATUS_SUCCESS) {
efa46078 1305 os_memset(&event, 0, sizeof(event));
59ddf221 1306 event.assoc_reject.bssid = mgmt->bssid;
efa46078
JM		 1307 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
1308 event.assoc_reject.resp_ies =
1309 (u8 *) mgmt->u.assoc_resp.variable;
1310 event.assoc_reject.resp_ies_len =
1311 len - 24 - sizeof(mgmt->u.assoc_resp);
1312 }
1313 event.assoc_reject.status_code = status;
1314
1315 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
c2a04078
JM		 1316 return;
1317 }
1318
1319 drv->associated = 1;
1320 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN);
add9b7a4 1321 os_memcpy(drv->prev_bssid, mgmt->sa, ETH_ALEN);
c2a04078
JM		 1322
1323 os_memset(&event, 0, sizeof(event));
1324 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
1325 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable;
1326 event.assoc_info.resp_ies_len =
efa46078 1327 len - 24 - sizeof(mgmt->u.assoc_resp);
c2a04078
JM		 1328 }
1329
4832ecd7
JM		 1330 event.assoc_info.freq = drv->assoc_freq;
1331
c2a04078
JM		 1332 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
1333}
1334
c1bb3e0a 1335
da72a1c1
ZY		 1336static void mlme_event_connect(struct wpa_driver_nl80211_data *drv,
1337 enum nl80211_commands cmd, struct nlattr *status,
1338 struct nlattr *addr, struct nlattr *req_ie,
1339 struct nlattr *resp_ie)
1340{
1341 union wpa_event_data event;
1342
7da2c527
JM		 1343 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
1344 /*
1345 * Avoid reporting two association events that would confuse
1346 * the core code.
1347 */
1348 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) "
1349 "when using userspace SME", cmd);
1350 return;
1351 }
1352
7d81932d
JM		 1353 if (cmd == NL80211_CMD_CONNECT)
1354 wpa_printf(MSG_DEBUG, "nl80211: Connect event");
1355 else if (cmd == NL80211_CMD_ROAM)
1356 wpa_printf(MSG_DEBUG, "nl80211: Roam event");
1357
da72a1c1
ZY		 1358 os_memset(&event, 0, sizeof(event));
1359 if (cmd == NL80211_CMD_CONNECT &&
1360 nla_get_u16(status) != WLAN_STATUS_SUCCESS) {
df89c1c8
JM		 1361 if (addr)
1362 event.assoc_reject.bssid = nla_data(addr);
da72a1c1
ZY		 1363 if (resp_ie) {
1364 event.assoc_reject.resp_ies = nla_data(resp_ie);
1365 event.assoc_reject.resp_ies_len = nla_len(resp_ie);
1366 }
1367 event.assoc_reject.status_code = nla_get_u16(status);
1368 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
1369 return;
1370 }
1371
1372 drv->associated = 1;
add9b7a4 1373 if (addr) {
da72a1c1 1374 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN);
add9b7a4
JM		 1375 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN);
1376 }
da72a1c1
ZY		 1377
1378 if (req_ie) {
1379 event.assoc_info.req_ies = nla_data(req_ie);
1380 event.assoc_info.req_ies_len = nla_len(req_ie);
1381 }
1382 if (resp_ie) {
1383 event.assoc_info.resp_ies = nla_data(resp_ie);
1384 event.assoc_info.resp_ies_len = nla_len(resp_ie);
1385 }
1386
f5a8d422
JM		 1387 event.assoc_info.freq = nl80211_get_assoc_freq(drv);
1388
da72a1c1
ZY		 1389 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
1390}
c2a04078 1391
c1bb3e0a 1392
20f5a4c2 1393static void mlme_event_disconnect(struct wpa_driver_nl80211_data *drv,
3d9975d5
JM		 1394 struct nlattr *reason, struct nlattr *addr,
1395 struct nlattr *by_ap)
20f5a4c2
JM		 1396{
1397 union wpa_event_data data;
a8c5b43a 1398 unsigned int locally_generated = by_ap == NULL;
20f5a4c2
JM		 1399
1400 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
1401 /*
1402 * Avoid reporting two disassociation events that could
1403 * confuse the core code.
1404 */
1405 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect "
1406 "event when using userspace SME");
1407 return;
1408 }
1409
a8c5b43a
CW		 1410 if (drv->ignore_next_local_disconnect) {
1411 drv->ignore_next_local_disconnect = 0;
1412 if (locally_generated) {
1413 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect "
1414 "event triggered during reassociation");
1415 return;
1416 }
1417 wpa_printf(MSG_WARNING, "nl80211: Was expecting local "
1418 "disconnect but got another disconnect "
1419 "event first");
1420 }
1421
7d81932d 1422 wpa_printf(MSG_DEBUG, "nl80211: Disconnect event");
add9b7a4 1423 nl80211_mark_disconnected(drv);
20f5a4c2
JM		 1424 os_memset(&data, 0, sizeof(data));
1425 if (reason)
2e9f078c
JM		 1426 data.deauth_info.reason_code = nla_get_u16(reason);
1427 data.deauth_info.locally_generated = by_ap == NULL;
1428 wpa_supplicant_event(drv->ctx, EVENT_DEAUTH, &data);
20f5a4c2
JM		 1429}
1430
1431
1b487b8b
TP		 1432static void mlme_event_ch_switch(struct wpa_driver_nl80211_data *drv,
1433 struct nlattr *freq, struct nlattr *type)
1434{
1435 union wpa_event_data data;
1436 int ht_enabled = 1;
1437 int chan_offset = 0;
1438
1439 wpa_printf(MSG_DEBUG, "nl80211: Channel switch event");
1440
1441 if (!freq || !type)
1442 return;
1443
1444 switch (nla_get_u32(type)) {
1445 case NL80211_CHAN_NO_HT:
1446 ht_enabled = 0;
1447 break;
1448 case NL80211_CHAN_HT20:
1449 break;
1450 case NL80211_CHAN_HT40PLUS:
1451 chan_offset = 1;
1452 break;
1453 case NL80211_CHAN_HT40MINUS:
1454 chan_offset = -1;
1455 break;
1456 }
1457
1458 data.ch_switch.freq = nla_get_u32(freq);
1459 data.ch_switch.ht_enabled = ht_enabled;
1460 data.ch_switch.ch_offset = chan_offset;
1461
1462 wpa_supplicant_event(drv->ctx, EVENT_CH_SWITCH, &data);
1463}
1464
1465
da1fb17c
JM		 1466static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv,
1467 enum nl80211_commands cmd, struct nlattr *addr)
1468{
1469 union wpa_event_data event;
1470 enum wpa_event_type ev;
1471
1472 if (nla_len(addr) != ETH_ALEN)
1473 return;
1474
1475 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR,
1476 cmd, MAC2STR((u8 *) nla_data(addr)));
1477
1478 if (cmd == NL80211_CMD_AUTHENTICATE)
1479 ev = EVENT_AUTH_TIMED_OUT;
1480 else if (cmd == NL80211_CMD_ASSOCIATE)
1481 ev = EVENT_ASSOC_TIMED_OUT;
1482 else
1483 return;
1484
1485 os_memset(&event, 0, sizeof(event));
1486 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN);
1487 wpa_supplicant_event(drv->ctx, ev, &event);
1488}
1489
1490
5582a5d1 1491static void mlme_event_mgmt(struct wpa_driver_nl80211_data *drv,
da873dbb
JB		 1492 struct nlattr *freq, struct nlattr *sig,
1493 const u8 *frame, size_t len)
58f6fbe0
JM		 1494{
1495 const struct ieee80211_mgmt *mgmt;
1496 union wpa_event_data event;
1497 u16 fc, stype;
da873dbb 1498 int ssi_signal = 0;
58f6fbe0 1499
cc2ada86 1500 wpa_printf(MSG_MSGDUMP, "nl80211: Frame event");
58f6fbe0
JM		 1501 mgmt = (const struct ieee80211_mgmt *) frame;
1502 if (len < 24) {
1503 wpa_printf(MSG_DEBUG, "nl80211: Too short action frame");
1504 return;
1505 }
1506
1507 fc = le_to_host16(mgmt->frame_control);
1508 stype = WLAN_FC_GET_STYPE(fc);
1509
da873dbb
JB		 1510 if (sig)
1511 ssi_signal = (s32) nla_get_u32(sig);
1512
58f6fbe0 1513 os_memset(&event, 0, sizeof(event));
5582a5d1 1514 if (freq) {
58f6fbe0 1515 event.rx_action.freq = nla_get_u32(freq);
5582a5d1
JB		 1516 drv->last_mgmt_freq = event.rx_action.freq;
1517 }
1518 if (stype == WLAN_FC_STYPE_ACTION) {
1519 event.rx_action.da = mgmt->da;
1520 event.rx_action.sa = mgmt->sa;
1521 event.rx_action.bssid = mgmt->bssid;
1522 event.rx_action.category = mgmt->u.action.category;
1523 event.rx_action.data = &mgmt->u.action.category + 1;
1524 event.rx_action.len = frame + len - event.rx_action.data;
1525 wpa_supplicant_event(drv->ctx, EVENT_RX_ACTION, &event);
1526 } else {
1527 event.rx_mgmt.frame = frame;
1528 event.rx_mgmt.frame_len = len;
da873dbb 1529 event.rx_mgmt.ssi_signal = ssi_signal;
5582a5d1
JB		 1530 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
1531 }
58f6fbe0
JM		 1532}
1533
1534
a11241fa
JB		 1535static void mlme_event_mgmt_tx_status(struct wpa_driver_nl80211_data *drv,
1536 struct nlattr *cookie, const u8 *frame,
1537 size_t len, struct nlattr *ack)
58f6fbe0
JM		 1538{
1539 union wpa_event_data event;
1540 const struct ieee80211_hdr *hdr;
1541 u16 fc;
58f6fbe0 1542
7d81932d 1543 wpa_printf(MSG_DEBUG, "nl80211: Frame TX status event");
a11241fa
JB		 1544 if (!is_ap_interface(drv->nlmode)) {
1545 u64 cookie_val;
58f6fbe0 1546
a11241fa
JB		 1547 if (!cookie)
1548 return;
1549
1550 cookie_val = nla_get_u64(cookie);
1551 wpa_printf(MSG_DEBUG, "nl80211: Action TX status:"
1552 " cookie=0%llx%s (ack=%d)",
1553 (long long unsigned int) cookie_val,
1554 cookie_val == drv->send_action_cookie ?
1555 " (match)" : " (unknown)", ack != NULL);
1556 if (cookie_val != drv->send_action_cookie)
1557 return;
1558 }
58f6fbe0
JM		 1559
1560 hdr = (const struct ieee80211_hdr *) frame;
1561 fc = le_to_host16(hdr->frame_control);
1562
1563 os_memset(&event, 0, sizeof(event));
1564 event.tx_status.type = WLAN_FC_GET_TYPE(fc);
1565 event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
1566 event.tx_status.dst = hdr->addr1;
1567 event.tx_status.data = frame;
1568 event.tx_status.data_len = len;
1569 event.tx_status.ack = ack != NULL;
1570 wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event);
1571}
1572
1573
0544b242
JM		 1574static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv,
1575 enum wpa_event_type type,
1576 const u8 *frame, size_t len)
1577{
1578 const struct ieee80211_mgmt *mgmt;
1579 union wpa_event_data event;
1580 const u8 *bssid = NULL;
1581 u16 reason_code = 0;
1582
7d81932d
JM		 1583 if (type == EVENT_DEAUTH)
1584 wpa_printf(MSG_DEBUG, "nl80211: Deauthenticate event");
1585 else
1586 wpa_printf(MSG_DEBUG, "nl80211: Disassociate event");
1587
cb30b297
PS		 1588 mgmt = (const struct ieee80211_mgmt *) frame;
1589 if (len >= 24) {
1590 bssid = mgmt->bssid;
1591
add9b7a4
JM		 1592 if ((drv->capa.flags & WPA_DRIVER_FLAGS_SME) &&
1593 !drv->associated &&
1594 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0 &&
1595 os_memcmp(bssid, drv->auth_attempt_bssid, ETH_ALEN) != 0 &&
1596 os_memcmp(bssid, drv->prev_bssid, ETH_ALEN) == 0) {
1597 /*
1598 * Avoid issues with some roaming cases where
1599 * disconnection event for the old AP may show up after
1600 * we have started connection with the new AP.
1601 */
1602 wpa_printf(MSG_DEBUG, "nl80211: Ignore deauth/disassoc event from old AP " MACSTR " when already authenticating with " MACSTR,
1603 MAC2STR(bssid),
1604 MAC2STR(drv->auth_attempt_bssid));
1605 return;
1606 }
1607
cb30b297
PS		 1608 if (drv->associated != 0 &&
1609 os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 &&
1610 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) {
1611 /*
1612 * We have presumably received this deauth as a
1613 * response to a clear_state_mismatch() outgoing
1614 * deauth. Don't let it take us offline!
1615 */
1616 wpa_printf(MSG_DEBUG, "nl80211: Deauth received "
1617 "from Unknown BSSID " MACSTR " -- ignoring",
1618 MAC2STR(bssid));
1619 return;
1620 }
1621 }
1622
add9b7a4 1623 nl80211_mark_disconnected(drv);
0544b242
JM		 1624 os_memset(&event, 0, sizeof(event));
1625
0544b242
JM		 1626 /* Note: Same offset for Reason Code in both frame subtypes */
1627 if (len >= 24 + sizeof(mgmt->u.deauth))
1628 reason_code = le_to_host16(mgmt->u.deauth.reason_code);
1629
1630 if (type == EVENT_DISASSOC) {
3d9975d5
JM		 1631 event.disassoc_info.locally_generated =
1632 !os_memcmp(mgmt->sa, drv->first_bss.addr, ETH_ALEN);
0544b242
JM		 1633 event.disassoc_info.addr = bssid;
1634 event.disassoc_info.reason_code = reason_code;
046b26a2
JM		 1635 if (frame + len > mgmt->u.disassoc.variable) {
1636 event.disassoc_info.ie = mgmt->u.disassoc.variable;
1637 event.disassoc_info.ie_len = frame + len -
1638 mgmt->u.disassoc.variable;
1639 }
0544b242 1640 } else {
3d9975d5
JM		 1641 event.deauth_info.locally_generated =
1642 !os_memcmp(mgmt->sa, drv->first_bss.addr, ETH_ALEN);
0544b242
JM		 1643 event.deauth_info.addr = bssid;
1644 event.deauth_info.reason_code = reason_code;
046b26a2
JM		 1645 if (frame + len > mgmt->u.deauth.variable) {
1646 event.deauth_info.ie = mgmt->u.deauth.variable;
1647 event.deauth_info.ie_len = frame + len -
1648 mgmt->u.deauth.variable;
1649 }
0544b242
JM		 1650 }
1651
1652 wpa_supplicant_event(drv->ctx, type, &event);
1653}
1654
1655
7d878ca7
JM		 1656static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv,
1657 enum wpa_event_type type,
1658 const u8 *frame, size_t len)
1659{
1660 const struct ieee80211_mgmt *mgmt;
1661 union wpa_event_data event;
1662 u16 reason_code = 0;
1663
7d81932d
JM		 1664 if (type == EVENT_UNPROT_DEAUTH)
1665 wpa_printf(MSG_DEBUG, "nl80211: Unprot Deauthenticate event");
1666 else
1667 wpa_printf(MSG_DEBUG, "nl80211: Unprot Disassociate event");
1668
7d878ca7
JM		 1669 if (len < 24)
1670 return;
1671
1672 mgmt = (const struct ieee80211_mgmt *) frame;
1673
1674 os_memset(&event, 0, sizeof(event));
1675 /* Note: Same offset for Reason Code in both frame subtypes */
1676 if (len >= 24 + sizeof(mgmt->u.deauth))
1677 reason_code = le_to_host16(mgmt->u.deauth.reason_code);
1678
1679 if (type == EVENT_UNPROT_DISASSOC) {
1680 event.unprot_disassoc.sa = mgmt->sa;
1681 event.unprot_disassoc.da = mgmt->da;
1682 event.unprot_disassoc.reason_code = reason_code;
1683 } else {
1684 event.unprot_deauth.sa = mgmt->sa;
1685 event.unprot_deauth.da = mgmt->da;
1686 event.unprot_deauth.reason_code = reason_code;
1687 }
1688
1689 wpa_supplicant_event(drv->ctx, type, &event);
1690}
1691
1692
97279d8d 1693static void mlme_event(struct i802_bss *bss,
da1fb17c 1694 enum nl80211_commands cmd, struct nlattr *frame,
58f6fbe0
JM		 1695 struct nlattr *addr, struct nlattr *timed_out,
1696 struct nlattr *freq, struct nlattr *ack,
da873dbb 1697 struct nlattr *cookie, struct nlattr *sig)
c2a04078 1698{
97279d8d
JM		 1699 struct wpa_driver_nl80211_data *drv = bss->drv;
1700 const u8 *data;
1701 size_t len;
1702
da1fb17c
JM		 1703 if (timed_out && addr) {
1704 mlme_timeout_event(drv, cmd, addr);
1705 return;
1706 }
1707
c2a04078 1708 if (frame == NULL) {
2090a0b4
DS		 1709 wpa_printf(MSG_DEBUG,
1710 "nl80211: MLME event %d (%s) without frame data",
1711 cmd, nl80211_command_to_string(cmd));
c2a04078
JM		 1712 return;
1713 }
1714
97279d8d
JM		 1715 data = nla_data(frame);
1716 len = nla_len(frame);
455299fb 1717 if (len < 4 + 2 * ETH_ALEN) {
2090a0b4
DS		 1718 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s("
1719 MACSTR ") - too short",
1720 cmd, nl80211_command_to_string(cmd), bss->ifname,
1721 MAC2STR(bss->addr));
97279d8d
JM		 1722 return;
1723 }
2090a0b4
DS		 1724 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" MACSTR
1725 ") A1=" MACSTR " A2=" MACSTR, cmd,
1726 nl80211_command_to_string(cmd), bss->ifname,
1727 MAC2STR(bss->addr), MAC2STR(data + 4),
1728 MAC2STR(data + 4 + ETH_ALEN));
97279d8d 1729 if (cmd != NL80211_CMD_FRAME_TX_STATUS && !(data[4] & 0x01) &&
455299fb
JM		 1730 os_memcmp(bss->addr, data + 4, ETH_ALEN) != 0 &&
1731 os_memcmp(bss->addr, data + 4 + ETH_ALEN, ETH_ALEN) != 0) {
97279d8d
JM		 1732 wpa_printf(MSG_MSGDUMP, "nl80211: %s: Ignore MLME frame event "
1733 "for foreign address", bss->ifname);
1734 return;
1735 }
c2a04078
JM		 1736 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame",
1737 nla_data(frame), nla_len(frame));
1738
1739 switch (cmd) {
1740 case NL80211_CMD_AUTHENTICATE:
1741 mlme_event_auth(drv, nla_data(frame), nla_len(frame));
1742 break;
1743 case NL80211_CMD_ASSOCIATE:
1744 mlme_event_assoc(drv, nla_data(frame), nla_len(frame));
1745 break;
1746 case NL80211_CMD_DEAUTHENTICATE:
0544b242
JM		 1747 mlme_event_deauth_disassoc(drv, EVENT_DEAUTH,
1748 nla_data(frame), nla_len(frame));
c2a04078
JM		 1749 break;
1750 case NL80211_CMD_DISASSOCIATE:
0544b242
JM		 1751 mlme_event_deauth_disassoc(drv, EVENT_DISASSOC,
1752 nla_data(frame), nla_len(frame));
c2a04078 1753 break;
bd94971e 1754 case NL80211_CMD_FRAME:
da873dbb
JB		 1755 mlme_event_mgmt(drv, freq, sig, nla_data(frame),
1756 nla_len(frame));
58f6fbe0 1757 break;
bd94971e 1758 case NL80211_CMD_FRAME_TX_STATUS:
a11241fa
JB		 1759 mlme_event_mgmt_tx_status(drv, cookie, nla_data(frame),
1760 nla_len(frame), ack);
58f6fbe0 1761 break;
7d878ca7
JM		 1762 case NL80211_CMD_UNPROT_DEAUTHENTICATE:
1763 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH,
1764 nla_data(frame), nla_len(frame));
1765 break;
1766 case NL80211_CMD_UNPROT_DISASSOCIATE:
1767 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC,
1768 nla_data(frame), nla_len(frame));
1769 break;
c2a04078
JM		 1770 default:
1771 break;
1772 }
1773}
1774
1775
a5e1eb20 1776static void mlme_event_michael_mic_failure(struct i802_bss *bss,
35583f3f
JM		 1777 struct nlattr *tb[])
1778{
1779 union wpa_event_data data;
1780
1781 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure");
1782 os_memset(&data, 0, sizeof(data));
1783 if (tb[NL80211_ATTR_MAC]) {
1784 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address",
1785 nla_data(tb[NL80211_ATTR_MAC]),
1786 nla_len(tb[NL80211_ATTR_MAC]));
ad1e68e6 1787 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]);
35583f3f
JM		 1788 }
1789 if (tb[NL80211_ATTR_KEY_SEQ]) {
1790 wpa_hexdump(MSG_DEBUG, "nl80211: TSC",
1791 nla_data(tb[NL80211_ATTR_KEY_SEQ]),
1792 nla_len(tb[NL80211_ATTR_KEY_SEQ]));
1793 }
1794 if (tb[NL80211_ATTR_KEY_TYPE]) {
1795 enum nl80211_key_type key_type =
1796 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]);
1797 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type);
1798 if (key_type == NL80211_KEYTYPE_PAIRWISE)
1799 data.michael_mic_failure.unicast = 1;
1800 } else
1801 data.michael_mic_failure.unicast = 1;
1802
1803 if (tb[NL80211_ATTR_KEY_IDX]) {
1804 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]);
1805 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id);
1806 }
1807
a5e1eb20 1808 wpa_supplicant_event(bss->ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
35583f3f
JM		 1809}
1810
1811
5cc4d64b
JM		 1812static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv,
1813 struct nlattr *tb[])
1814{
1815 if (tb[NL80211_ATTR_MAC] == NULL) {
1816 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined "
1817 "event");
1818 return;
1819 }
1820 os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
1821 drv->associated = 1;
1822 wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined",
1823 MAC2STR(drv->bssid));
1824
1825 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL);
1826}
1827
1828
55777702
JM		 1829static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv,
1830 int cancel_event, struct nlattr *tb[])
1831{
1832 unsigned int freq, chan_type, duration;
1833 union wpa_event_data data;
1834 u64 cookie;
1835
1836 if (tb[NL80211_ATTR_WIPHY_FREQ])
1837 freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]);
1838 else
1839 freq = 0;
1840
1841 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
1842 chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1843 else
1844 chan_type = 0;
1845
1846 if (tb[NL80211_ATTR_DURATION])
1847 duration = nla_get_u32(tb[NL80211_ATTR_DURATION]);
1848 else
1849 duration = 0;
1850
1851 if (tb[NL80211_ATTR_COOKIE])
1852 cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
1853 else
1854 cookie = 0;
1855
1856 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d "
1857 "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))",
1858 cancel_event, freq, chan_type, duration,
1859 (long long unsigned int) cookie,
1860 cookie == drv->remain_on_chan_cookie ? "match" : "unknown");
1861
1862 if (cookie != drv->remain_on_chan_cookie)
1863 return; /* not for us */
1864
531f0331
JB		 1865 if (cancel_event)
1866 drv->pending_remain_on_chan = 0;
55777702
JM		 1867
1868 os_memset(&data, 0, sizeof(data));
1869 data.remain_on_channel.freq = freq;
1870 data.remain_on_channel.duration = duration;
1871 wpa_supplicant_event(drv->ctx, cancel_event ?
1872 EVENT_CANCEL_REMAIN_ON_CHANNEL :
1873 EVENT_REMAIN_ON_CHANNEL, &data);
1874}
1875
1876
6a1ce395
DG		 1877static void mlme_event_ft_event(struct wpa_driver_nl80211_data *drv,
1878 struct nlattr *tb[])
1879{
1880 union wpa_event_data data;
1881
1882 os_memset(&data, 0, sizeof(data));
1883
1884 if (tb[NL80211_ATTR_IE]) {
1885 data.ft_ies.ies = nla_data(tb[NL80211_ATTR_IE]);
1886 data.ft_ies.ies_len = nla_len(tb[NL80211_ATTR_IE]);
1887 }
1888
1889 if (tb[NL80211_ATTR_IE_RIC]) {
1890 data.ft_ies.ric_ies = nla_data(tb[NL80211_ATTR_IE_RIC]);
1891 data.ft_ies.ric_ies_len = nla_len(tb[NL80211_ATTR_IE_RIC]);
1892 }
1893
1894 if (tb[NL80211_ATTR_MAC])
1895 os_memcpy(data.ft_ies.target_ap,
1896 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
1897
1898 wpa_printf(MSG_DEBUG, "nl80211: FT event target_ap " MACSTR,
1899 MAC2STR(data.ft_ies.target_ap));
1900
1901 wpa_supplicant_event(drv->ctx, EVENT_FT_RESPONSE, &data);
1902}
1903
1904
8d923a4a
JM		 1905static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted,
1906 struct nlattr *tb[])
1907{
1908 union wpa_event_data event;
1909 struct nlattr *nl;
1910 int rem;
1911 struct scan_info *info;
1912#define MAX_REPORT_FREQS 50
1913 int freqs[MAX_REPORT_FREQS];
1914 int num_freqs = 0;
1915
536fd62d
JM		 1916 if (drv->scan_for_auth) {
1917 drv->scan_for_auth = 0;
1918 wpa_printf(MSG_DEBUG, "nl80211: Scan results for missing "
1919 "cfg80211 BSS entry");
1920 wpa_driver_nl80211_authenticate_retry(drv);
1921 return;
1922 }
1923
8d923a4a
JM		 1924 os_memset(&event, 0, sizeof(event));
1925 info = &event.scan_info;
1926 info->aborted = aborted;
1927
1928 if (tb[NL80211_ATTR_SCAN_SSIDS]) {
1929 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) {
1930 struct wpa_driver_scan_ssid *s =
1931 &info->ssids[info->num_ssids];
1932 s->ssid = nla_data(nl);
1933 s->ssid_len = nla_len(nl);
1934 info->num_ssids++;
1935 if (info->num_ssids == WPAS_MAX_SCAN_SSIDS)
1936 break;
1937 }
1938 }
1939 if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) {
1940 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem)
1941 {
1942 freqs[num_freqs] = nla_get_u32(nl);
1943 num_freqs++;
1944 if (num_freqs == MAX_REPORT_FREQS - 1)
1945 break;
1946 }
1947 info->freqs = freqs;
1948 info->num_freqs = num_freqs;
1949 }
1950 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event);
1951}
1952
1953
60a972a6
JM		 1954static int get_link_signal(struct nl_msg *msg, void *arg)
1955{
1956 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1957 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1958 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1];
1959 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = {
1960 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 },
95783298 1961 [NL80211_STA_INFO_SIGNAL_AVG] = { .type = NLA_U8 },
60a972a6 1962 };
7ee35bf3
PS		 1963 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1];
1964 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = {
1965 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 },
1966 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 },
1967 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG },
1968 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG },
1969 };
1c5c7273 1970 struct wpa_signal_info *sig_change = arg;
60a972a6
JM		 1971
1972 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1973 genlmsg_attrlen(gnlh, 0), NULL);
1974 if (!tb[NL80211_ATTR_STA_INFO] ||
1975 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX,
1976 tb[NL80211_ATTR_STA_INFO], policy))
1977 return NL_SKIP;
1978 if (!sinfo[NL80211_STA_INFO_SIGNAL])
1979 return NL_SKIP;
1980
7ee35bf3
PS		 1981 sig_change->current_signal =
1982 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]);
1983
95783298
AO		 1984 if (sinfo[NL80211_STA_INFO_SIGNAL_AVG])
1985 sig_change->avg_signal =
1986 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL_AVG]);
1987 else
1988 sig_change->avg_signal = 0;
1989
7ee35bf3
PS		 1990 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) {
1991 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX,
1992 sinfo[NL80211_STA_INFO_TX_BITRATE],
1993 rate_policy)) {
1994 sig_change->current_txrate = 0;
1995 } else {
1996 if (rinfo[NL80211_RATE_INFO_BITRATE]) {
1997 sig_change->current_txrate =
1998 nla_get_u16(rinfo[
1999 NL80211_RATE_INFO_BITRATE]) * 100;
2000 }
2001 }
2002 }
2003
60a972a6
JM		 2004 return NL_SKIP;
2005}
2006
2007
2008static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv,
1c5c7273 2009 struct wpa_signal_info *sig)
60a972a6
JM		 2010{
2011 struct nl_msg *msg;
2012
7ee35bf3
PS		 2013 sig->current_signal = -9999;
2014 sig->current_txrate = 0;
60a972a6
JM		 2015
2016 msg = nlmsg_alloc();
2017 if (!msg)
2018 return -ENOMEM;
2019
9fb04070 2020 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION);
60a972a6
JM		 2021
2022 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2023 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
2024
2025 return send_and_recv_msgs(drv, msg, get_link_signal, sig);
2026 nla_put_failure:
5883168a 2027 nlmsg_free(msg);
60a972a6
JM		 2028 return -ENOBUFS;
2029}
2030
2031
7ee35bf3
PS		 2032static int get_link_noise(struct nl_msg *msg, void *arg)
2033{
2034 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2035 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2036 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
2037 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
2038 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
2039 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
2040 };
1c5c7273 2041 struct wpa_signal_info *sig_change = arg;
7ee35bf3
PS		 2042
2043 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2044 genlmsg_attrlen(gnlh, 0), NULL);
2045
2046 if (!tb[NL80211_ATTR_SURVEY_INFO]) {
2047 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!");
2048 return NL_SKIP;
2049 }
2050
2051 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
2052 tb[NL80211_ATTR_SURVEY_INFO],
2053 survey_policy)) {
2054 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested "
2055 "attributes!");
2056 return NL_SKIP;
2057 }
2058
2059 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY])
2060 return NL_SKIP;
2061
2062 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) !=
2063 sig_change->frequency)
2064 return NL_SKIP;
2065
2066 if (!sinfo[NL80211_SURVEY_INFO_NOISE])
2067 return NL_SKIP;
2068
2069 sig_change->current_noise =
2070 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
2071
2072 return NL_SKIP;
2073}
2074
2075
2076static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv,
1c5c7273 2077 struct wpa_signal_info *sig_change)
7ee35bf3
PS		 2078{
2079 struct nl_msg *msg;
2080
2081 sig_change->current_noise = 9999;
2082 sig_change->frequency = drv->assoc_freq;
2083
2084 msg = nlmsg_alloc();
2085 if (!msg)
2086 return -ENOMEM;
2087
9fb04070 2088 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
7ee35bf3
PS		 2089
2090 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2091
2092 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change);
2093 nla_put_failure:
5883168a 2094 nlmsg_free(msg);
7ee35bf3
PS		 2095 return -ENOBUFS;
2096}
2097
2098
577db0ae
GM		 2099static int get_noise_for_scan_results(struct nl_msg *msg, void *arg)
2100{
2101 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2102 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2103 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
2104 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
2105 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
2106 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
2107 };
2108 struct wpa_scan_results *scan_results = arg;
2109 struct wpa_scan_res *scan_res;
2110 size_t i;
2111
2112 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2113 genlmsg_attrlen(gnlh, 0), NULL);
2114
2115 if (!tb[NL80211_ATTR_SURVEY_INFO]) {
2116 wpa_printf(MSG_DEBUG, "nl80211: Survey data missing");
2117 return NL_SKIP;
2118 }
2119
2120 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
2121 tb[NL80211_ATTR_SURVEY_INFO],
2122 survey_policy)) {
2123 wpa_printf(MSG_DEBUG, "nl80211: Failed to parse nested "
2124 "attributes");
2125 return NL_SKIP;
2126 }
2127
2128 if (!sinfo[NL80211_SURVEY_INFO_NOISE])
2129 return NL_SKIP;
2130
2131 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY])
2132 return NL_SKIP;
2133
2134 for (i = 0; i < scan_results->num; ++i) {
2135 scan_res = scan_results->res[i];
2136 if (!scan_res)
2137 continue;
2138 if ((int) nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) !=
2139 scan_res->freq)
2140 continue;
2141 if (!(scan_res->flags & WPA_SCAN_NOISE_INVALID))
2142 continue;
2143 scan_res->noise = (s8)
2144 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
2145 scan_res->flags &= ~WPA_SCAN_NOISE_INVALID;
2146 }
2147
2148 return NL_SKIP;
2149}
2150
2151
2152static int nl80211_get_noise_for_scan_results(
2153 struct wpa_driver_nl80211_data *drv,
2154 struct wpa_scan_results *scan_res)
2155{
2156 struct nl_msg *msg;
2157
2158 msg = nlmsg_alloc();
2159 if (!msg)
2160 return -ENOMEM;
2161
2162 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
2163
2164 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2165
2166 return send_and_recv_msgs(drv, msg, get_noise_for_scan_results,
2167 scan_res);
2168 nla_put_failure:
9e088e74 2169 nlmsg_free(msg);
577db0ae
GM		 2170 return -ENOBUFS;
2171}
2172
2173
93910401
JM		 2174static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv,
2175 struct nlattr *tb[])
2176{
2177 static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
2178 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
2179 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 },
2180 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
0d7e5a3a 2181 [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 },
93910401
JM		 2182 };
2183 struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1];
2184 enum nl80211_cqm_rssi_threshold_event event;
b625473c 2185 union wpa_event_data ed;
1c5c7273 2186 struct wpa_signal_info sig;
7ee35bf3 2187 int res;
93910401
JM		 2188
2189 if (tb[NL80211_ATTR_CQM] == NULL ||
2190 nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM],
2191 cqm_policy)) {
2192 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event");
2193 return;
2194 }
2195
0d7e5a3a
JB		 2196 os_memset(&ed, 0, sizeof(ed));
2197
2198 if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) {
2199 if (!tb[NL80211_ATTR_MAC])
2200 return;
2201 os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]),
2202 ETH_ALEN);
2203 wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed);
2204 return;
2205 }
2206
93910401
JM		 2207 if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL)
2208 return;
2209 event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]);
b625473c 2210
93910401
JM		 2211 if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) {
2212 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
2213 "event: RSSI high");
b625473c 2214 ed.signal_change.above_threshold = 1;
93910401
JM		 2215 } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) {
2216 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
2217 "event: RSSI low");
b625473c
JM		 2218 ed.signal_change.above_threshold = 0;
2219 } else
2220 return;
2221
60a972a6
JM		 2222 res = nl80211_get_link_signal(drv, &sig);
2223 if (res == 0) {
7ee35bf3
PS		 2224 ed.signal_change.current_signal = sig.current_signal;
2225 ed.signal_change.current_txrate = sig.current_txrate;
2226 wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d",
2227 sig.current_signal, sig.current_txrate);
2228 }
2229
2230 res = nl80211_get_link_noise(drv, &sig);
2231 if (res == 0) {
2232 ed.signal_change.current_noise = sig.current_noise;
2233 wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm",
2234 sig.current_noise);
60a972a6
JM		 2235 }
2236
b625473c 2237 wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed);
93910401
JM		 2238}
2239
2240
18d2ba08
JM		 2241static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv,
2242 struct nlattr **tb)
2243{
2244 u8 *addr;
2245 union wpa_event_data data;
2246
2247 if (tb[NL80211_ATTR_MAC] == NULL)
2248 return;
2249 addr = nla_data(tb[NL80211_ATTR_MAC]);
2250 wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr));
5f310a9e 2251
61cbe2ff 2252 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) {
5f310a9e
JM		 2253 u8 *ies = NULL;
2254 size_t ies_len = 0;
2255 if (tb[NL80211_ATTR_IE]) {
2256 ies = nla_data(tb[NL80211_ATTR_IE]);
2257 ies_len = nla_len(tb[NL80211_ATTR_IE]);
2258 }
2259 wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len);
2260 drv_event_assoc(drv->ctx, addr, ies, ies_len, 0);
2261 return;
2262 }
2263
18d2ba08
JM		 2264 if (drv->nlmode != NL80211_IFTYPE_ADHOC)
2265 return;
2266
2267 os_memset(&data, 0, sizeof(data));
2268 os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN);
2269 wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data);
2270}
2271
2272
ef985058
JM		 2273static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv,
2274 struct nlattr **tb)
2275{
2276 u8 *addr;
2277 union wpa_event_data data;
2278
2279 if (tb[NL80211_ATTR_MAC] == NULL)
2280 return;
2281 addr = nla_data(tb[NL80211_ATTR_MAC]);
2282 wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR,
2283 MAC2STR(addr));
5f310a9e 2284
61cbe2ff 2285 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) {
5f310a9e
JM		 2286 drv_event_disassoc(drv->ctx, addr);
2287 return;
2288 }
2289
ef985058
JM		 2290 if (drv->nlmode != NL80211_IFTYPE_ADHOC)
2291 return;
2292
2293 os_memset(&data, 0, sizeof(data));
2294 os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN);
2295 wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data);
2296}
2297
2298
b14a210c
JB		 2299static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv,
2300 struct nlattr **tb)
2301{
2302 struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA];
2303 static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = {
2304 [NL80211_REKEY_DATA_KEK] = {
2305 .minlen = NL80211_KEK_LEN,
2306 .maxlen = NL80211_KEK_LEN,
2307 },
2308 [NL80211_REKEY_DATA_KCK] = {
2309 .minlen = NL80211_KCK_LEN,
2310 .maxlen = NL80211_KCK_LEN,
2311 },
2312 [NL80211_REKEY_DATA_REPLAY_CTR] = {
2313 .minlen = NL80211_REPLAY_CTR_LEN,
2314 .maxlen = NL80211_REPLAY_CTR_LEN,
2315 },
2316 };
2317 union wpa_event_data data;
2318
2319 if (!tb[NL80211_ATTR_MAC])
2320 return;
2321 if (!tb[NL80211_ATTR_REKEY_DATA])
2322 return;
2323 if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA,
2324 tb[NL80211_ATTR_REKEY_DATA], rekey_policy))
2325 return;
2326 if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR])
2327 return;
2328
2329 os_memset(&data, 0, sizeof(data));
2330 data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]);
2331 wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR,
2332 MAC2STR(data.driver_gtk_rekey.bssid));
2333 data.driver_gtk_rekey.replay_ctr =
2334 nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]);
2335 wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter",
2336 data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN);
2337 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data);
2338}
2339
2340
c36d5242
JM		 2341static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv,
2342 struct nlattr **tb)
2343{
2344 struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE];
2345 static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = {
2346 [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 },
2347 [NL80211_PMKSA_CANDIDATE_BSSID] = {
2348 .minlen = ETH_ALEN,
2349 .maxlen = ETH_ALEN,
2350 },
2351 [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG },
2352 };
2353 union wpa_event_data data;
2354
7d81932d
JM		 2355 wpa_printf(MSG_DEBUG, "nl80211: PMKSA candidate event");
2356
c36d5242
JM		 2357 if (!tb[NL80211_ATTR_PMKSA_CANDIDATE])
2358 return;
2359 if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE,
2360 tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy))
2361 return;
2362 if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] ||
2363 !cand[NL80211_PMKSA_CANDIDATE_BSSID])
2364 return;
2365
2366 os_memset(&data, 0, sizeof(data));
2367 os_memcpy(data.pmkid_candidate.bssid,
2368 nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN);
2369 data.pmkid_candidate.index =
2370 nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]);
2371 data.pmkid_candidate.preauth =
2372 cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL;
2373 wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data);
2374}
2375
2376
39718852
JB		 2377static void nl80211_client_probe_event(struct wpa_driver_nl80211_data *drv,
2378 struct nlattr **tb)
2379{
2380 union wpa_event_data data;
2381
7d81932d
JM		 2382 wpa_printf(MSG_DEBUG, "nl80211: Probe client event");
2383
39718852
JB		 2384 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_ACK])
2385 return;
2386
2387 os_memset(&data, 0, sizeof(data));
2388 os_memcpy(data.client_poll.addr,
2389 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
2390
2391 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_CLIENT_POLL_OK, &data);
2392}
2393
2394
6201b052
JM		 2395static void nl80211_tdls_oper_event(struct wpa_driver_nl80211_data *drv,
2396 struct nlattr **tb)
2397{
2398 union wpa_event_data data;
2399
2400 wpa_printf(MSG_DEBUG, "nl80211: TDLS operation event");
2401
2402 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_TDLS_OPERATION])
2403 return;
2404
2405 os_memset(&data, 0, sizeof(data));
2406 os_memcpy(data.tdls.peer, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
2407 switch (nla_get_u8(tb[NL80211_ATTR_TDLS_OPERATION])) {
2408 case NL80211_TDLS_SETUP:
2409 wpa_printf(MSG_DEBUG, "nl80211: TDLS setup request for peer "
2410 MACSTR, MAC2STR(data.tdls.peer));
2411 data.tdls.oper = TDLS_REQUEST_SETUP;
2412 break;
2413 case NL80211_TDLS_TEARDOWN:
2414 wpa_printf(MSG_DEBUG, "nl80211: TDLS teardown request for peer "
2415 MACSTR, MAC2STR(data.tdls.peer));
2416 data.tdls.oper = TDLS_REQUEST_TEARDOWN;
2417 break;
2418 default:
2419 wpa_printf(MSG_DEBUG, "nl80211: Unsupported TDLS operatione "
2420 "event");
2421 return;
2422 }
2423 if (tb[NL80211_ATTR_REASON_CODE]) {
2424 data.tdls.reason_code =
2425 nla_get_u16(tb[NL80211_ATTR_REASON_CODE]);
2426 }
2427
2428 wpa_supplicant_event(drv->ctx, EVENT_TDLS, &data);
2429}
2430
2431
3140803b
RM		 2432static void nl80211_connect_failed_event(struct wpa_driver_nl80211_data *drv,
2433 struct nlattr **tb)
2434{
2435 union wpa_event_data data;
2436 u32 reason;
2437
2438 wpa_printf(MSG_DEBUG, "nl80211: Connect failed event");
2439
2440 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_CONN_FAILED_REASON])
2441 return;
2442
2443 os_memset(&data, 0, sizeof(data));
2444 os_memcpy(data.connect_failed_reason.addr,
2445 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
2446
2447 reason = nla_get_u32(tb[NL80211_ATTR_CONN_FAILED_REASON]);
2448 switch (reason) {
2449 case NL80211_CONN_FAIL_MAX_CLIENTS:
2450 wpa_printf(MSG_DEBUG, "nl80211: Max client reached");
2451 data.connect_failed_reason.code = MAX_CLIENT_REACHED;
2452 break;
2453 case NL80211_CONN_FAIL_BLOCKED_CLIENT:
2454 wpa_printf(MSG_DEBUG, "nl80211: Blocked client " MACSTR
2455 " tried to connect",
2456 MAC2STR(data.connect_failed_reason.addr));
2457 data.connect_failed_reason.code = BLOCKED_CLIENT;
2458 break;
2459 default:
2460 wpa_printf(MSG_DEBUG, "nl8021l: Unknown connect failed reason "
2461 "%u", reason);
2462 return;
2463 }
2464
2465 wpa_supplicant_event(drv->ctx, EVENT_CONNECT_FAILED_REASON, &data);
2466}
2467
2468
04be54fa
SW		 2469static void nl80211_radar_event(struct wpa_driver_nl80211_data *drv,
2470 struct nlattr **tb)
2471{
2472 union wpa_event_data data;
2473 enum nl80211_radar_event event_type;
2474
2475 if (!tb[NL80211_ATTR_WIPHY_FREQ] || !tb[NL80211_ATTR_RADAR_EVENT])
2476 return;
2477
2478 os_memset(&data, 0, sizeof(data));
2479 data.dfs_event.freq = nla_get_u16(tb[NL80211_ATTR_WIPHY_FREQ]);
2480 event_type = nla_get_u8(tb[NL80211_ATTR_RADAR_EVENT]);
2481
2482 wpa_printf(MSG_DEBUG, "nl80211: DFS event on freq %d MHz",
2483 data.dfs_event.freq);
2484
2485 switch (event_type) {
2486 case NL80211_RADAR_DETECTED:
2487 wpa_supplicant_event(drv->ctx, EVENT_DFS_RADAR_DETECTED, &data);
2488 break;
2489 case NL80211_RADAR_CAC_FINISHED:
2490 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_FINISHED, &data);
2491 break;
2492 case NL80211_RADAR_CAC_ABORTED:
2493 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_ABORTED, &data);
2494 break;
2495 case NL80211_RADAR_NOP_FINISHED:
2496 wpa_supplicant_event(drv->ctx, EVENT_DFS_NOP_FINISHED, &data);
2497 break;
2498 default:
2499 wpa_printf(MSG_DEBUG, "nl80211: Unknown radar event %d "
2500 "received", event_type);
2501 break;
2502 }
2503}
2504
2505
3088e4e5
JB		 2506static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb,
2507 int wds)
02bb32c3
JB		 2508{
2509 struct wpa_driver_nl80211_data *drv = bss->drv;
2510 union wpa_event_data event;
02bb32c3
JB		 2511
2512 if (!tb[NL80211_ATTR_MAC])
2513 return;
2514
02bb32c3 2515 os_memset(&event, 0, sizeof(event));
341eebee 2516 event.rx_from_unknown.bssid = bss->addr;
02bb32c3 2517 event.rx_from_unknown.addr = nla_data(tb[NL80211_ATTR_MAC]);
3088e4e5 2518 event.rx_from_unknown.wds = wds;
02bb32c3
JB		 2519
2520 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event);
2521}
2522
2523
a5e1eb20
SE		 2524static void do_process_drv_event(struct i802_bss *bss, int cmd,
2525 struct nlattr **tb)
97865538 2526{
a5e1eb20
SE		 2527 struct wpa_driver_nl80211_data *drv = bss->drv;
2528
2090a0b4
DS		 2529 wpa_printf(MSG_DEBUG, "nl80211: Drv Event %d (%s) received for %s",
2530 cmd, nl80211_command_to_string(cmd), bss->ifname);
2531
b1f625e0 2532 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED &&
d6c9aab8
JB		 2533 (cmd == NL80211_CMD_NEW_SCAN_RESULTS ||
2534 cmd == NL80211_CMD_SCAN_ABORTED)) {
a2e40bb6 2535 wpa_driver_nl80211_set_mode(&drv->first_bss,
b1f625e0
EP		 2536 drv->ap_scan_as_station);
2537 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
ad1e68e6
JM		 2538 }
2539
d6c9aab8 2540 switch (cmd) {
d942a79e 2541 case NL80211_CMD_TRIGGER_SCAN:
565110cd 2542 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan trigger");
d942a79e 2543 break;
d21c63b9 2544 case NL80211_CMD_START_SCHED_SCAN:
565110cd 2545 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan started");
d21c63b9
LC		 2546 break;
2547 case NL80211_CMD_SCHED_SCAN_STOPPED:
565110cd 2548 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan stopped");
d21c63b9
LC		 2549 wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL);
2550 break;
97865538 2551 case NL80211_CMD_NEW_SCAN_RESULTS:
565110cd
JM		 2552 wpa_dbg(drv->ctx, MSG_DEBUG,
2553 "nl80211: New scan results available");
97865538
JM		 2554 drv->scan_complete_events = 1;
2555 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
2556 drv->ctx);
8d923a4a 2557 send_scan_event(drv, 0, tb);
97865538 2558 break;
d21c63b9 2559 case NL80211_CMD_SCHED_SCAN_RESULTS:
565110cd
JM		 2560 wpa_dbg(drv->ctx, MSG_DEBUG,
2561 "nl80211: New sched scan results available");
d21c63b9
LC		 2562 send_scan_event(drv, 0, tb);
2563 break;
97865538 2564 case NL80211_CMD_SCAN_ABORTED:
565110cd 2565 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan aborted");
97865538
JM		 2566 /*
2567 * Need to indicate that scan results are available in order
2568 * not to make wpa_supplicant stop its scanning.
2569 */
2570 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
2571 drv->ctx);
8d923a4a 2572 send_scan_event(drv, 1, tb);
97865538 2573 break;
c2a04078
JM		 2574 case NL80211_CMD_AUTHENTICATE:
2575 case NL80211_CMD_ASSOCIATE:
2576 case NL80211_CMD_DEAUTHENTICATE:
2577 case NL80211_CMD_DISASSOCIATE:
bd94971e 2578 case NL80211_CMD_FRAME_TX_STATUS:
7d878ca7
JM		 2579 case NL80211_CMD_UNPROT_DEAUTHENTICATE:
2580 case NL80211_CMD_UNPROT_DISASSOCIATE:
97279d8d 2581 mlme_event(bss, cmd, tb[NL80211_ATTR_FRAME],
58f6fbe0
JM		 2582 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT],
2583 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK],
da873dbb
JB		 2584 tb[NL80211_ATTR_COOKIE],
2585 tb[NL80211_ATTR_RX_SIGNAL_DBM]);
c2a04078 2586 break;
da72a1c1
ZY		 2587 case NL80211_CMD_CONNECT:
2588 case NL80211_CMD_ROAM:
d6c9aab8 2589 mlme_event_connect(drv, cmd,
da72a1c1
ZY		 2590 tb[NL80211_ATTR_STATUS_CODE],
2591 tb[NL80211_ATTR_MAC],
2592 tb[NL80211_ATTR_REQ_IE],
2593 tb[NL80211_ATTR_RESP_IE]);
2594 break;
1b487b8b
TP		 2595 case NL80211_CMD_CH_SWITCH_NOTIFY:
2596 mlme_event_ch_switch(drv, tb[NL80211_ATTR_WIPHY_FREQ],
2597 tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
2598 break;
da72a1c1 2599 case NL80211_CMD_DISCONNECT:
20f5a4c2 2600 mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE],
3d9975d5
JM		 2601 tb[NL80211_ATTR_MAC],
2602 tb[NL80211_ATTR_DISCONNECTED_BY_AP]);
da72a1c1 2603 break;
35583f3f 2604 case NL80211_CMD_MICHAEL_MIC_FAILURE:
a5e1eb20 2605 mlme_event_michael_mic_failure(bss, tb);
35583f3f 2606 break;
5cc4d64b
JM		 2607 case NL80211_CMD_JOIN_IBSS:
2608 mlme_event_join_ibss(drv, tb);
2609 break;
55777702
JM		 2610 case NL80211_CMD_REMAIN_ON_CHANNEL:
2611 mlme_event_remain_on_channel(drv, 0, tb);
2612 break;
2613 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL:
2614 mlme_event_remain_on_channel(drv, 1, tb);
2615 break;
93910401
JM		 2616 case NL80211_CMD_NOTIFY_CQM:
2617 nl80211_cqm_event(drv, tb);
2618 break;
33c5deb8
JM		 2619 case NL80211_CMD_REG_CHANGE:
2620 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change");
2621 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED,
2622 NULL);
2623 break;
2624 case NL80211_CMD_REG_BEACON_HINT:
2625 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint");
2626 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED,
2627 NULL);
2628 break;
18d2ba08
JM		 2629 case NL80211_CMD_NEW_STATION:
2630 nl80211_new_station_event(drv, tb);
2631 break;
ef985058
JM		 2632 case NL80211_CMD_DEL_STATION:
2633 nl80211_del_station_event(drv, tb);
2634 break;
b14a210c
JB		 2635 case NL80211_CMD_SET_REKEY_OFFLOAD:
2636 nl80211_rekey_offload_event(drv, tb);
2637 break;
c36d5242
JM		 2638 case NL80211_CMD_PMKSA_CANDIDATE:
2639 nl80211_pmksa_candidate_event(drv, tb);
2640 break;
39718852
JB		 2641 case NL80211_CMD_PROBE_CLIENT:
2642 nl80211_client_probe_event(drv, tb);
2643 break;
6201b052
JM		 2644 case NL80211_CMD_TDLS_OPER:
2645 nl80211_tdls_oper_event(drv, tb);
2646 break;
3140803b
RM		 2647 case NL80211_CMD_CONN_FAILED:
2648 nl80211_connect_failed_event(drv, tb);
2649 break;
6a1ce395
DG		 2650 case NL80211_CMD_FT_EVENT:
2651 mlme_event_ft_event(drv, tb);
2652 break;
04be54fa
SW		 2653 case NL80211_CMD_RADAR_DETECT:
2654 nl80211_radar_event(drv, tb);
2655 break;
97865538 2656 default:
565110cd
JM		 2657 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Ignored unknown event "
2658 "(cmd=%d)", cmd);
97865538
JM		 2659 break;
2660 }
d6c9aab8
JB		 2661}
2662
2663
2664static int process_drv_event(struct nl_msg *msg, void *arg)
2665{
2666 struct wpa_driver_nl80211_data *drv = arg;
2667 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2668 struct nlattr *tb[NL80211_ATTR_MAX + 1];
a5e1eb20
SE		 2669 struct i802_bss *bss;
2670 int ifidx = -1;
d6c9aab8
JB		 2671
2672 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2673 genlmsg_attrlen(gnlh, 0), NULL);
2674
d3aaef80 2675 if (tb[NL80211_ATTR_IFINDEX]) {
a5e1eb20
SE		 2676 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
2677
d3aaef80
DS		 2678 for (bss = &drv->first_bss; bss; bss = bss->next)
2679 if (ifidx == -1 || ifidx == bss->ifindex) {
2680 do_process_drv_event(bss, gnlh->cmd, tb);
2681 return NL_SKIP;
2682 }
2683 wpa_printf(MSG_DEBUG,
2684 "nl80211: Ignored event (cmd=%d) for foreign interface (ifindex %d)",
2685 gnlh->cmd, ifidx);
2686 } else if (tb[NL80211_ATTR_WDEV]) {
2687 u64 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]);
2688 wpa_printf(MSG_DEBUG, "nl80211: Process event on P2P device");
2689 for (bss = &drv->first_bss; bss; bss = bss->next) {
2690 if (bss->wdev_id_set && wdev_id == bss->wdev_id) {
2691 do_process_drv_event(bss, gnlh->cmd, tb);
2692 return NL_SKIP;
2693 }
d6c9aab8 2694 }
d3aaef80
DS		 2695 wpa_printf(MSG_DEBUG,
2696 "nl80211: Ignored event (cmd=%d) for foreign interface (wdev 0x%llx)",
2697 gnlh->cmd, (long long unsigned int) wdev_id);
d6c9aab8
JB		 2698 }
2699
d6c9aab8
JB		 2700 return NL_SKIP;
2701}
2702
2703
2704static int process_global_event(struct nl_msg *msg, void *arg)
2705{
2706 struct nl80211_global *global = arg;
2707 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2708 struct nlattr *tb[NL80211_ATTR_MAX + 1];
24b5bd8b 2709 struct wpa_driver_nl80211_data *drv, *tmp;
d6c9aab8 2710 int ifidx = -1;
a5e1eb20 2711 struct i802_bss *bss;
d3aaef80
DS		 2712 u64 wdev_id;
2713 int wdev_id_set = 0;
d6c9aab8
JB		 2714
2715 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2716 genlmsg_attrlen(gnlh, 0), NULL);
2717
2718 if (tb[NL80211_ATTR_IFINDEX])
2719 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
d3aaef80
DS		 2720 else if (tb[NL80211_ATTR_WDEV]) {
2721 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]);
2722 wdev_id_set = 1;
2723 }
d6c9aab8 2724
24b5bd8b
JB		 2725 dl_list_for_each_safe(drv, tmp, &global->interfaces,
2726 struct wpa_driver_nl80211_data, list) {
a5e1eb20 2727 for (bss = &drv->first_bss; bss; bss = bss->next) {
d3aaef80
DS		 2728 if ((ifidx == -1 && !wdev_id_set) ||
2729 ifidx == bss->ifindex ||
2730 (wdev_id_set && bss->wdev_id_set &&
2731 wdev_id == bss->wdev_id)) {
a5e1eb20
SE		 2732 do_process_drv_event(bss, gnlh->cmd, tb);
2733 return NL_SKIP;
2734 }
2735 }
d6c9aab8 2736 }
97865538
JM		 2737
2738 return NL_SKIP;
2739}
2740
2741
cc7a48d1
JB		 2742static int process_bss_event(struct nl_msg *msg, void *arg)
2743{
a11241fa 2744 struct i802_bss *bss = arg;
cc7a48d1
JB		 2745 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2746 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2747
2748 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2749 genlmsg_attrlen(gnlh, 0), NULL);
2750
2090a0b4
DS		 2751 wpa_printf(MSG_DEBUG, "nl80211: BSS Event %d (%s) received for %s",
2752 gnlh->cmd, nl80211_command_to_string(gnlh->cmd),
2753 bss->ifname);
2754
cc7a48d1 2755 switch (gnlh->cmd) {
a11241fa
JB		 2756 case NL80211_CMD_FRAME:
2757 case NL80211_CMD_FRAME_TX_STATUS:
97279d8d 2758 mlme_event(bss, gnlh->cmd, tb[NL80211_ATTR_FRAME],
a11241fa
JB		 2759 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT],
2760 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK],
da873dbb
JB		 2761 tb[NL80211_ATTR_COOKIE],
2762 tb[NL80211_ATTR_RX_SIGNAL_DBM]);
a11241fa 2763 break;
02bb32c3 2764 case NL80211_CMD_UNEXPECTED_FRAME:
3088e4e5
JB		 2765 nl80211_spurious_frame(bss, tb, 0);
2766 break;
2767 case NL80211_CMD_UNEXPECTED_4ADDR_FRAME:
2768 nl80211_spurious_frame(bss, tb, 1);
02bb32c3 2769 break;
cc7a48d1
JB		 2770 default:
2771 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event "
2772 "(cmd=%d)", gnlh->cmd);
2773 break;
2774 }
2775
2776 return NL_SKIP;
2777}
2778
2779
97865538 2780static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx,
5582a5d1 2781 void *handle)
97865538 2782{
a4ae123c 2783 struct nl_cb *cb = eloop_ctx;
97865538 2784
cc2ada86 2785 wpa_printf(MSG_MSGDUMP, "nl80211: Event message available");
97865538 2786
a4ae123c 2787 nl_recvmsgs(handle, cb);
97865538
JM		 2788}
2789
2790
6d158490
LR		 2791/**
2792 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain
2793 * @priv: driver_nl80211 private data
2794 * @alpha2_arg: country to which to switch to
2795 * Returns: 0 on success, -1 on failure
2796 *
2797 * This asks nl80211 to set the regulatory domain for given
2798 * country ISO / IEC alpha2.
2799 */
2800static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg)
2801{
a2e40bb6
FF		 2802 struct i802_bss *bss = priv;
2803 struct wpa_driver_nl80211_data *drv = bss->drv;
6d158490
LR		 2804 char alpha2[3];
2805 struct nl_msg *msg;
2806
2807 msg = nlmsg_alloc();
2808 if (!msg)
e785c2ba 2809 return -ENOMEM;
6d158490
LR		 2810
2811 alpha2[0] = alpha2_arg[0];
2812 alpha2[1] = alpha2_arg[1];
2813 alpha2[2] = '\0';
2814
9fb04070 2815 nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG);
6d158490
LR		 2816
2817 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2);
2818 if (send_and_recv_msgs(drv, msg, NULL, NULL))
2819 return -EINVAL;
2820 return 0;
2821nla_put_failure:
5883168a 2822 nlmsg_free(msg);
6d158490
LR		 2823 return -EINVAL;
2824}
2825
2826
43245552
DJ		 2827static int protocol_feature_handler(struct nl_msg *msg, void *arg)
2828{
2829 u32 *feat = arg;
2830 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
2831 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2832
2833 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2834 genlmsg_attrlen(gnlh, 0), NULL);
2835
2836 if (tb_msg[NL80211_ATTR_PROTOCOL_FEATURES])
2837 *feat = nla_get_u32(tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]);
2838
2839 return NL_SKIP;
2840}
2841
2842
2843static u32 get_nl80211_protocol_features(struct wpa_driver_nl80211_data *drv)
2844{
2845 u32 feat = 0;
2846 struct nl_msg *msg;
2847
2848 msg = nlmsg_alloc();
2849 if (!msg)
2850 goto nla_put_failure;
2851
2852 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_PROTOCOL_FEATURES);
2853 if (send_and_recv_msgs(drv, msg, protocol_feature_handler, &feat) == 0)
2854 return feat;
2855
2856 msg = NULL;
2857nla_put_failure:
2858 nlmsg_free(msg);
2859 return 0;
2860}
2861
2862
80bc75f1 2863struct wiphy_info_data {
8cd6b7bc 2864 struct wpa_driver_nl80211_data *drv;
e8b5e24e
JB		 2865 struct wpa_driver_capa *capa;
2866
2867 unsigned int error:1;
61cbe2ff 2868 unsigned int device_ap_sme:1;
39718852 2869 unsigned int poll_command_supported:1;
32ab4855 2870 unsigned int data_tx_status:1;
536062f2 2871 unsigned int monitor_supported:1;
43245552
DJ		 2872 unsigned int auth_supported:1;
2873 unsigned int connect_supported:1;
2874 unsigned int p2p_go_supported:1;
2875 unsigned int p2p_client_supported:1;
2876 unsigned int p2p_concurrent:1;
2877 unsigned int p2p_multichan_concurrent:1;
80bc75f1
JM		 2878};
2879
2880
562c9d97
AN		 2881static unsigned int probe_resp_offload_support(int supp_protocols)
2882{
2883 unsigned int prot = 0;
2884
2885 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS)
2886 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS;
2887 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2)
2888 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2;
2889 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P)
2890 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P;
2891 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U)
2892 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING;
2893
2894 return prot;
2895}
2896
2897
5f439107
JM		 2898static void wiphy_info_supported_iftypes(struct wiphy_info_data *info,
2899 struct nlattr *tb)
80bc75f1 2900{
5f439107
JM		 2901 struct nlattr *nl_mode;
2902 int i;
2903
2904 if (tb == NULL)
2905 return;
2906
2907 nla_for_each_nested(nl_mode, tb, i) {
2908 switch (nla_type(nl_mode)) {
2909 case NL80211_IFTYPE_AP:
2910 info->capa->flags |= WPA_DRIVER_FLAGS_AP;
2911 break;
65d52fc1
BR		 2912 case NL80211_IFTYPE_ADHOC:
2913 info->capa->flags |= WPA_DRIVER_FLAGS_IBSS;
2914 break;
7aad838c
NS		 2915 case NL80211_IFTYPE_P2P_DEVICE:
2916 info->capa->flags |=
2917 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE;
2918 break;
5f439107
JM		 2919 case NL80211_IFTYPE_P2P_GO:
2920 info->p2p_go_supported = 1;
2921 break;
2922 case NL80211_IFTYPE_P2P_CLIENT:
2923 info->p2p_client_supported = 1;
2924 break;
2925 case NL80211_IFTYPE_MONITOR:
2926 info->monitor_supported = 1;
2927 break;
2928 }
2929 }
2930}
2931
2932
2933static int wiphy_info_iface_comb_process(struct wiphy_info_data *info,
2934 struct nlattr *nl_combi)
2935{
2936 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB];
2937 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT];
2938 struct nlattr *nl_limit, *nl_mode;
2939 int err, rem_limit, rem_mode;
2940 int combination_has_p2p = 0, combination_has_mgd = 0;
7626850d
JB		 2941 static struct nla_policy
2942 iface_combination_policy[NUM_NL80211_IFACE_COMB] = {
2943 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED },
2944 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 },
2945 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG },
2946 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 },
f295d0c8 2947 [NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS] = { .type = NLA_U32 },
7626850d
JB		 2948 },
2949 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = {
2950 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED },
2951 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 },
2952 };
80bc75f1 2953
5f439107
JM		 2954 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB,
2955 nl_combi, iface_combination_policy);
2956 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] ||
2957 !tb_comb[NL80211_IFACE_COMB_MAXNUM] ||
2958 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS])
2959 return 0; /* broken combination */
2960
f295d0c8
SW		 2961 if (tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS])
2962 info->capa->flags |= WPA_DRIVER_FLAGS_RADAR;
2963
5f439107
JM		 2964 nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS],
2965 rem_limit) {
2966 err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT,
2967 nl_limit, iface_limit_policy);
2968 if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES])
2969 return 0; /* broken combination */
2970
2971 nla_for_each_nested(nl_mode,
2972 tb_limit[NL80211_IFACE_LIMIT_TYPES],
2973 rem_mode) {
2974 int ift = nla_type(nl_mode);
2975 if (ift == NL80211_IFTYPE_P2P_GO ||
2976 ift == NL80211_IFTYPE_P2P_CLIENT)
2977 combination_has_p2p = 1;
2978 if (ift == NL80211_IFTYPE_STATION)
2979 combination_has_mgd = 1;
2980 }
2981 if (combination_has_p2p && combination_has_mgd)
2982 break;
2983 }
2984
2985 if (combination_has_p2p && combination_has_mgd) {
2986 info->p2p_concurrent = 1;
2987 if (nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) > 1)
2988 info->p2p_multichan_concurrent = 1;
2989 return 1;
2990 }
2991
2992 return 0;
2993}
2994
2995
2996static void wiphy_info_iface_comb(struct wiphy_info_data *info,
2997 struct nlattr *tb)
2998{
2999 struct nlattr *nl_combi;
3000 int rem_combi;
3001
3002 if (tb == NULL)
3003 return;
3004
3005 nla_for_each_nested(nl_combi, tb, rem_combi) {
3006 if (wiphy_info_iface_comb_process(info, nl_combi) > 0)
3007 break;
3008 }
3009}
3010
3011
3012static void wiphy_info_supp_cmds(struct wiphy_info_data *info,
3013 struct nlattr *tb)
3014{
3015 struct nlattr *nl_cmd;
3016 int i;
3017
3018 if (tb == NULL)
3019 return;
3020
3021 nla_for_each_nested(nl_cmd, tb, i) {
3022 switch (nla_get_u32(nl_cmd)) {
3023 case NL80211_CMD_AUTHENTICATE:
3024 info->auth_supported = 1;
3025 break;
3026 case NL80211_CMD_CONNECT:
3027 info->connect_supported = 1;
3028 break;
3029 case NL80211_CMD_START_SCHED_SCAN:
3030 info->capa->sched_scan_supported = 1;
3031 break;
3032 case NL80211_CMD_PROBE_CLIENT:
3033 info->poll_command_supported = 1;
3034 break;
3035 }
3036 }
3037}
3038
3039
3040static void wiphy_info_max_roc(struct wpa_driver_capa *capa,
3041 struct nlattr *tb)
3042{
5f439107
JM		 3043 if (tb)
3044 capa->max_remain_on_chan = nla_get_u32(tb);
3045}
3046
3047
3048static void wiphy_info_tdls(struct wpa_driver_capa *capa, struct nlattr *tdls,
3049 struct nlattr *ext_setup)
3050{
3051 if (tdls == NULL)
3052 return;
3053
3054 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported");
3055 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT;
3056
3057 if (ext_setup) {
3058 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup");
3059 capa->flags |= WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP;
3060 }
3061}
3062
3063
3064static void wiphy_info_feature_flags(struct wiphy_info_data *info,
3065 struct nlattr *tb)
3066{
3067 u32 flags;
3068 struct wpa_driver_capa *capa = info->capa;
3069
3070 if (tb == NULL)
3071 return;
3072
3073 flags = nla_get_u32(tb);
3074
3075 if (flags & NL80211_FEATURE_SK_TX_STATUS)
3076 info->data_tx_status = 1;
3077
3078 if (flags & NL80211_FEATURE_INACTIVITY_TIMER)
3079 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER;
3080
3081 if (flags & NL80211_FEATURE_SAE)
3082 capa->flags |= WPA_DRIVER_FLAGS_SAE;
3083
3084 if (flags & NL80211_FEATURE_NEED_OBSS_SCAN)
3085 capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN;
3086}
3087
3088
3089static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa,
3090 struct nlattr *tb)
3091{
3092 u32 protocols;
3093
3094 if (tb == NULL)
3095 return;
3096
3097 protocols = nla_get_u32(tb);
3098 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP "
3099 "mode");
3100 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD;
3101 capa->probe_resp_offloads = probe_resp_offload_support(protocols);
3102}
3103
3104
3105static int wiphy_info_handler(struct nl_msg *msg, void *arg)
3106{
3107 struct nlattr *tb[NL80211_ATTR_MAX + 1];
3108 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3109 struct wiphy_info_data *info = arg;
3110 struct wpa_driver_capa *capa = info->capa;
8cd6b7bc 3111 struct wpa_driver_nl80211_data *drv = info->drv;
5f439107 3112
80bc75f1
JM		 3113 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3114 genlmsg_attrlen(gnlh, 0), NULL);
3115
3116 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS])
e8b5e24e 3117 capa->max_scan_ssids =
80bc75f1
JM		 3118 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]);
3119
d21c63b9 3120 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS])
e8b5e24e 3121 capa->max_sched_scan_ssids =
d21c63b9
LC		 3122 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]);
3123
bd525934 3124 if (tb[NL80211_ATTR_MAX_MATCH_SETS])
e8b5e24e 3125 capa->max_match_sets =
bd525934
LC		 3126 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]);
3127
3c4ca363
VN		 3128 if (tb[NL80211_ATTR_MAC_ACL_MAX])
3129 capa->max_acl_mac_addrs =
3130 nla_get_u8(tb[NL80211_ATTR_MAC_ACL_MAX]);
3131
5f439107
JM		 3132 wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]);
3133 wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]);
3134 wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]);
93d11400 3135
e8b5e24e
JB		 3136 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) {
3137 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based "
3138 "off-channel TX");
3139 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX;
3140 }
3141
3142 if (tb[NL80211_ATTR_ROAM_SUPPORT]) {
3143 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming");
3144 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION;
3145 }
5dfca53f 3146
5f439107
JM		 3147 wiphy_info_max_roc(capa,
3148 tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]);
004ba773 3149
70619a5d
EP		 3150 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD])
3151 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD;
3152
5f439107
JM		 3153 wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT],
3154 tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]);
03ea1786 3155
61cbe2ff
JB		 3156 if (tb[NL80211_ATTR_DEVICE_AP_SME])
3157 info->device_ap_sme = 1;
3158
5f439107
JM		 3159 wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]);
3160 wiphy_info_probe_resp_offload(capa,
3161 tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]);
562c9d97 3162
8cd6b7bc
JB		 3163 if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] &&
3164 drv->extended_capa == NULL) {
3165 drv->extended_capa =
3166 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA]));
3167 if (drv->extended_capa) {
3168 os_memcpy(drv->extended_capa,
3169 nla_data(tb[NL80211_ATTR_EXT_CAPA]),
3170 nla_len(tb[NL80211_ATTR_EXT_CAPA]));
3171 drv->extended_capa_len =
3172 nla_len(tb[NL80211_ATTR_EXT_CAPA]);
3173 }
3174 drv->extended_capa_mask =
3175 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA]));
3176 if (drv->extended_capa_mask) {
3177 os_memcpy(drv->extended_capa_mask,
3178 nla_data(tb[NL80211_ATTR_EXT_CAPA]),
3179 nla_len(tb[NL80211_ATTR_EXT_CAPA]));
3180 } else {
3181 os_free(drv->extended_capa);
3182 drv->extended_capa = NULL;
3183 drv->extended_capa_len = 0;
3184 }
3185 }
3186
80bc75f1
JM		 3187 return NL_SKIP;
3188}
3189
3190
3191static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv,
3192 struct wiphy_info_data *info)
3193{
43245552 3194 u32 feat;
80bc75f1
JM		 3195 struct nl_msg *msg;
3196
3197 os_memset(info, 0, sizeof(*info));
e8b5e24e 3198 info->capa = &drv->capa;
8cd6b7bc 3199 info->drv = drv;
89e07afb 3200
80bc75f1
JM		 3201 msg = nlmsg_alloc();
3202 if (!msg)
3203 return -1;
3204
43245552
DJ		 3205 feat = get_nl80211_protocol_features(drv);
3206 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)
3207 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY);
3208 else
3209 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY);
80bc75f1 3210
43245552 3211 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP);
f632e483
AS		 3212 if (nl80211_set_iface_id(msg, &drv->first_bss) < 0)
3213 goto nla_put_failure;
80bc75f1 3214
43245552
DJ		 3215 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info))
3216 return -1;
3217
3218 if (info->auth_supported)
3219 drv->capa.flags |= WPA_DRIVER_FLAGS_SME;
3220 else if (!info->connect_supported) {
3221 wpa_printf(MSG_INFO, "nl80211: Driver does not support "
3222 "authentication/association or connect commands");
3223 info->error = 1;
3224 }
3225
3226 if (info->p2p_go_supported && info->p2p_client_supported)
3227 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE;
3228 if (info->p2p_concurrent) {
3229 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
3230 "interface (driver advertised support)");
3231 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
3232 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
3233 }
3234 if (info->p2p_multichan_concurrent) {
3235 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel "
3236 "concurrent (driver advertised support)");
3237 drv->capa.flags |= WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT;
3238 }
b691dcb1
IP		 3239
3240 /* default to 5000 since early versions of mac80211 don't set it */
3241 if (!drv->capa.max_remain_on_chan)
3242 drv->capa.max_remain_on_chan = 5000;
3243
43245552 3244 return 0;
80bc75f1
JM		 3245nla_put_failure:
3246 nlmsg_free(msg);
3247 return -1;
3248}
3249
3250
93d11400 3251static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
80bc75f1
JM		 3252{
3253 struct wiphy_info_data info;
3254 if (wpa_driver_nl80211_get_info(drv, &info))
93d11400 3255 return -1;
e8b5e24e
JB		 3256
3257 if (info.error)
3258 return -1;
3259
80bc75f1 3260 drv->has_capability = 1;
1b2a72e8
JM		 3261 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */
3262 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
3263 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
3264 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
3265 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
3266 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 |
3267 WPA_DRIVER_CAPA_ENC_WEP104 |
3268 WPA_DRIVER_CAPA_ENC_TKIP |
3269 WPA_DRIVER_CAPA_ENC_CCMP;
291b6068
JM		 3270 drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
3271 WPA_DRIVER_AUTH_SHARED |
3272 WPA_DRIVER_AUTH_LEAP;
1b2a72e8 3273
871f4dd0 3274 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES;
0194fedb 3275 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE;
2fee890a 3276 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
e1bd4e19 3277
e5091674 3278 if (!info.device_ap_sme) {
e1bd4e19 3279 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS;
0194fedb 3280
e5091674
JM		 3281 /*
3282 * No AP SME is currently assumed to also indicate no AP MLME
3283 * in the driver/firmware.
3284 */
3285 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME;
3286 }
3287
61cbe2ff 3288 drv->device_ap_sme = info.device_ap_sme;
39718852 3289 drv->poll_command_supported = info.poll_command_supported;
32ab4855 3290 drv->data_tx_status = info.data_tx_status;
61cbe2ff 3291
a11241fa 3292 /*
73a3c6ff
FF		 3293 * If poll command and tx status are supported, mac80211 is new enough
3294 * to have everything we need to not need monitor interfaces.
a11241fa 3295 */
73a3c6ff 3296 drv->use_monitor = !info.poll_command_supported || !info.data_tx_status;
a11241fa 3297
536062f2
JM		 3298 if (drv->device_ap_sme && drv->use_monitor) {
3299 /*
3300 * Non-mac80211 drivers may not support monitor interface.
3301 * Make sure we do not get stuck with incorrect capability here
3302 * by explicitly testing this.
3303 */
3304 if (!info.monitor_supported) {
3305 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor "
3306 "with device_ap_sme since no monitor mode "
3307 "support detected");
3308 drv->use_monitor = 0;
3309 }
3310 }
3311
a11241fa
JB		 3312 /*
3313 * If we aren't going to use monitor interfaces, but the
3314 * driver doesn't support data TX status, we won't get TX
3315 * status for EAPOL frames.
3316 */
3317 if (!drv->use_monitor && !info.data_tx_status)
3318 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
3319
93d11400 3320 return 0;
80bc75f1
JM		 3321}
3322
3323
b088cf82
JM		 3324#ifdef ANDROID
3325static int android_genl_ctrl_resolve(struct nl_handle *handle,
3326 const char *name)
3327{
3328 /*
3329 * Android ICS has very minimal genl_ctrl_resolve() implementation, so
3330 * need to work around that.
3331 */
3332 struct nl_cache *cache = NULL;
3333 struct genl_family *nl80211 = NULL;
3334 int id = -1;
3335
3336 if (genl_ctrl_alloc_cache(handle, &cache) < 0) {
3337 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
3338 "netlink cache");
3339 goto fail;
3340 }
3341
3342 nl80211 = genl_ctrl_search_by_name(cache, name);
3343 if (nl80211 == NULL)
3344 goto fail;
3345
3346 id = genl_family_get_id(nl80211);
3347
3348fail:
3349 if (nl80211)
3350 genl_family_put(nl80211);
3351 if (cache)
3352 nl_cache_free(cache);
3353
3354 return id;
3355}
3356#define genl_ctrl_resolve android_genl_ctrl_resolve
3357#endif /* ANDROID */
3358
3359
2a7b66f5
BG		 3360static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global)
3361{
d6c9aab8
JB		 3362 int ret;
3363
2a7b66f5
BG		 3364 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
3365 if (global->nl_cb == NULL) {
3366 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
3367 "callbacks");
3368 return -1;
3369 }
3370
481234cf
JM		 3371 global->nl = nl_create_handle(global->nl_cb, "nl");
3372 if (global->nl == NULL)
d6c9aab8 3373 goto err;
276e2d67 3374
481234cf 3375 global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211");
335d42b1 3376 if (global->nl80211_id < 0) {
276e2d67
BG		 3377 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not "
3378 "found");
d6c9aab8 3379 goto err;
276e2d67
BG		 3380 }
3381
481234cf
JM		 3382 global->nl_event = nl_create_handle(global->nl_cb, "event");
3383 if (global->nl_event == NULL)
d6c9aab8 3384 goto err;
9fff9fdc 3385
d6c9aab8 3386 ret = nl_get_multicast_id(global, "nl80211", "scan");
97865538 3387 if (ret >= 0)
481234cf 3388 ret = nl_socket_add_membership(global->nl_event, ret);
97865538
JM		 3389 if (ret < 0) {
3390 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
3391 "membership for scan events: %d (%s)",
3392 ret, strerror(-ret));
d6c9aab8 3393 goto err;
97865538 3394 }
c2a04078 3395
d6c9aab8 3396 ret = nl_get_multicast_id(global, "nl80211", "mlme");
c2a04078 3397 if (ret >= 0)
481234cf 3398 ret = nl_socket_add_membership(global->nl_event, ret);
c2a04078
JM		 3399 if (ret < 0) {
3400 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
3401 "membership for mlme events: %d (%s)",
3402 ret, strerror(-ret));
d6c9aab8 3403 goto err;
c2a04078 3404 }
c2a04078 3405
d6c9aab8 3406 ret = nl_get_multicast_id(global, "nl80211", "regulatory");
33c5deb8 3407 if (ret >= 0)
481234cf 3408 ret = nl_socket_add_membership(global->nl_event, ret);
33c5deb8
JM		 3409 if (ret < 0) {
3410 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast "
3411 "membership for regulatory events: %d (%s)",
3412 ret, strerror(-ret));
3413 /* Continue without regulatory events */
3414 }
3415
d6c9aab8
JB		 3416 nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
3417 no_seq_check, NULL);
3418 nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
3419 process_global_event, global);
3420
481234cf 3421 eloop_register_read_sock(nl_socket_get_fd(global->nl_event),
d6c9aab8 3422 wpa_driver_nl80211_event_receive,
481234cf 3423 global->nl_cb, global->nl_event);
d6c9aab8
JB		 3424
3425 return 0;
3426
3427err:
3428 nl_destroy_handles(&global->nl_event);
3429 nl_destroy_handles(&global->nl);
3430 nl_cb_put(global->nl_cb);
671a5039 3431 global->nl_cb = NULL;
d6c9aab8
JB		 3432 return -1;
3433}
3434
3435
3436static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv)
3437{
1afc986d
JB		 3438 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
3439 if (!drv->nl_cb) {
3440 wpa_printf(MSG_ERROR, "nl80211: Failed to alloc cb struct");
d6c9aab8 3441 return -1;
1afc986d
JB		 3442 }
3443
3444 nl_cb_set(drv->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
3445 no_seq_check, NULL);
f06aedd9
JB		 3446 nl_cb_set(drv->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
3447 process_drv_event, drv);
1afc986d 3448
9fff9fdc 3449 return 0;
9fff9fdc
JM		 3450}
3451
3452
8401a6b0
JM		 3453static void wpa_driver_nl80211_rfkill_blocked(void *ctx)
3454{
8401a6b0 3455 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked");
a63063b4
JM		 3456 /*
3457 * This may be for any interface; use ifdown event to disable
3458 * interface.
3459 */
8401a6b0
JM		 3460}
3461
3462
3463static void wpa_driver_nl80211_rfkill_unblocked(void *ctx)
3464{
3465 struct wpa_driver_nl80211_data *drv = ctx;
3466 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked");
c81eff1a
BG		 3467 if (linux_set_iface_flags(drv->global->ioctl_sock,
3468 drv->first_bss.ifname, 1)) {
8401a6b0
JM		 3469 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP "
3470 "after rfkill unblock");
3471 return;
3472 }
a63063b4 3473 /* rtnetlink ifup handler will report interface as enabled */
8401a6b0
JM		 3474}
3475
3476
6859f1cb
BG		 3477static void nl80211_get_phy_name(struct wpa_driver_nl80211_data *drv)
3478{
3479 /* Find phy (radio) to which this interface belongs */
3480 char buf[90], *pos;
3481 int f, rv;
3482
3483 drv->phyname[0] = '\0';
3484 snprintf(buf, sizeof(buf) - 1, "/sys/class/net/%s/phy80211/name",
3485 drv->first_bss.ifname);
3486 f = open(buf, O_RDONLY);
3487 if (f < 0) {
3488 wpa_printf(MSG_DEBUG, "Could not open file %s: %s",
3489 buf, strerror(errno));
3490 return;
3491 }
3492
3493 rv = read(f, drv->phyname, sizeof(drv->phyname) - 1);
3494 close(f);
3495 if (rv < 0) {
3496 wpa_printf(MSG_DEBUG, "Could not read file %s: %s",
3497 buf, strerror(errno));
3498 return;
3499 }
3500
3501 drv->phyname[rv] = '\0';
3502 pos = os_strchr(drv->phyname, '\n');
3503 if (pos)
3504 *pos = '\0';
3505 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s",
3506 drv->first_bss.ifname, drv->phyname);
3507}
3508
3509
32ab4855
JB		 3510static void wpa_driver_nl80211_handle_eapol_tx_status(int sock,
3511 void *eloop_ctx,
3512 void *handle)
3513{
3514 struct wpa_driver_nl80211_data *drv = eloop_ctx;
3515 u8 data[2048];
3516 struct msghdr msg;
3517 struct iovec entry;
cad0f50e 3518 u8 control[512];
32ab4855
JB		 3519 struct cmsghdr *cmsg;
3520 int res, found_ee = 0, found_wifi = 0, acked = 0;
3521 union wpa_event_data event;
3522
3523 memset(&msg, 0, sizeof(msg));
3524 msg.msg_iov = &entry;
3525 msg.msg_iovlen = 1;
3526 entry.iov_base = data;
3527 entry.iov_len = sizeof(data);
3528 msg.msg_control = &control;
3529 msg.msg_controllen = sizeof(control);
3530
3531 res = recvmsg(sock, &msg, MSG_ERRQUEUE);
3532 /* if error or not fitting 802.3 header, return */
3533 if (res < 14)
3534 return;
3535
3536 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg))
3537 {
3538 if (cmsg->cmsg_level == SOL_SOCKET &&
3539 cmsg->cmsg_type == SCM_WIFI_STATUS) {
3540 int *ack;
3541
3542 found_wifi = 1;
3543 ack = (void *)CMSG_DATA(cmsg);
3544 acked = *ack;
3545 }
3546
3547 if (cmsg->cmsg_level == SOL_PACKET &&
3548 cmsg->cmsg_type == PACKET_TX_TIMESTAMP) {
3549 struct sock_extended_err *err =
3550 (struct sock_extended_err *)CMSG_DATA(cmsg);
3551
3552 if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS)
3553 found_ee = 1;
3554 }
3555 }
3556
3557 if (!found_ee || !found_wifi)
3558 return;
3559
3560 memset(&event, 0, sizeof(event));
3561 event.eapol_tx_status.dst = data;
3562 event.eapol_tx_status.data = data + 14;
3563 event.eapol_tx_status.data_len = res - 14;
3564 event.eapol_tx_status.ack = acked;
3565 wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event);
3566}
3567
3568
cc7a48d1
JB		 3569static int nl80211_init_bss(struct i802_bss *bss)
3570{
3571 bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
3572 if (!bss->nl_cb)
3573 return -1;
3574
3575 nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
3576 no_seq_check, NULL);
3577 nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
3578 process_bss_event, bss);
3579
3580 return 0;
3581}
3582
3583
3584static void nl80211_destroy_bss(struct i802_bss *bss)
3585{
3586 nl_cb_put(bss->nl_cb);
3587 bss->nl_cb = NULL;
3588}
3589
3590
9fff9fdc
JM		 3591/**
3592 * wpa_driver_nl80211_init - Initialize nl80211 driver interface
3593 * @ctx: context to be used when calling wpa_supplicant functions,
3594 * e.g., wpa_supplicant_event()
3595 * @ifname: interface name, e.g., wlan0
f2ed8023 3596 * @global_priv: private driver global data from global_init()
9fff9fdc
JM		 3597 * Returns: Pointer to private data, %NULL on failure
3598 */
f2ed8023
JM		 3599static void * wpa_driver_nl80211_init(void *ctx, const char *ifname,
3600 void *global_priv)
9fff9fdc 3601{
9fff9fdc 3602 struct wpa_driver_nl80211_data *drv;
8401a6b0 3603 struct rfkill_config *rcfg;
a2e40bb6 3604 struct i802_bss *bss;
9fff9fdc 3605
a5c696ad
JM		 3606 if (global_priv == NULL)
3607 return NULL;
9fff9fdc
JM		 3608 drv = os_zalloc(sizeof(*drv));
3609 if (drv == NULL)
3610 return NULL;
f2ed8023 3611 drv->global = global_priv;
9fff9fdc 3612 drv->ctx = ctx;
a2e40bb6
FF		 3613 bss = &drv->first_bss;
3614 bss->drv = drv;
a5e1eb20
SE		 3615 bss->ctx = ctx;
3616
a2e40bb6 3617 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname));
9fff9fdc
JM		 3618 drv->monitor_ifidx = -1;
3619 drv->monitor_sock = -1;
d12dab4c 3620 drv->eapol_tx_sock = -1;
b1f625e0 3621 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
9fff9fdc 3622
ba2d0d7d 3623 if (wpa_driver_nl80211_init_nl(drv)) {
bbaf0837
JM		 3624 os_free(drv);
3625 return NULL;
3626 }
9fff9fdc 3627
cc7a48d1
JB		 3628 if (nl80211_init_bss(bss))
3629 goto failed;
3630
6859f1cb
BG		 3631 nl80211_get_phy_name(drv);
3632
8401a6b0
JM		 3633 rcfg = os_zalloc(sizeof(*rcfg));
3634 if (rcfg == NULL)
3635 goto failed;
3636 rcfg->ctx = drv;
3637 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname));
3638 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked;
3639 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked;
3640 drv->rfkill = rfkill_init(rcfg);
52169389 3641 if (drv->rfkill == NULL) {
8401a6b0 3642 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available");
52169389
JM		 3643 os_free(rcfg);
3644 }
8401a6b0 3645
08063178 3646 if (wpa_driver_nl80211_finish_drv_init(drv))
bbaf0837 3647 goto failed;
7524cfb1 3648
d12dab4c 3649 drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0);
32ab4855
JB		 3650 if (drv->eapol_tx_sock < 0)
3651 goto failed;
3652
3653 if (drv->data_tx_status) {
3654 int enabled = 1;
3655
3656 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS,
3657 &enabled, sizeof(enabled)) < 0) {
3658 wpa_printf(MSG_DEBUG,
3659 "nl80211: wifi status sockopt failed\n");
3660 drv->data_tx_status = 0;
a11241fa
JB		 3661 if (!drv->use_monitor)
3662 drv->capa.flags &=
3663 ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
32ab4855
JB		 3664 } else {
3665 eloop_register_read_sock(drv->eapol_tx_sock,
3666 wpa_driver_nl80211_handle_eapol_tx_status,
3667 drv, NULL);
3668 }
3669 }
f10bfc9a 3670
dac12351 3671 if (drv->global) {
c4bb8817 3672 dl_list_add(&drv->global->interfaces, &drv->list);
dac12351
BG		 3673 drv->in_interface_list = 1;
3674 }
c4bb8817 3675
a2e40bb6 3676 return bss;
7524cfb1 3677
bbaf0837 3678failed:
dac12351 3679 wpa_driver_nl80211_deinit(bss);
7524cfb1
JM		 3680 return NULL;
3681}
3682
3683
a11241fa 3684static int nl80211_register_frame(struct i802_bss *bss,
5582a5d1 3685 struct nl_handle *nl_handle,
bd94971e 3686 u16 type, const u8 *match, size_t match_len)
58f6fbe0 3687{
a11241fa 3688 struct wpa_driver_nl80211_data *drv = bss->drv;
58f6fbe0
JM		 3689 struct nl_msg *msg;
3690 int ret = -1;
3691
3692 msg = nlmsg_alloc();
3693 if (!msg)
3694 return -1;
3695
36488c05
JM		 3696 wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x nl_handle=%p",
3697 type, nl_handle);
3698 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match",
3699 match, match_len);
3700
9fb04070 3701 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION);
58f6fbe0 3702
f632e483 3703 if (nl80211_set_iface_id(msg, bss) < 0)
d3aaef80
DS		 3704 goto nla_put_failure;
3705
bd94971e 3706 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type);
58f6fbe0
JM		 3707 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match);
3708
d6c9aab8 3709 ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL);
58f6fbe0
JM		 3710 msg = NULL;
3711 if (ret) {
5582a5d1
JB		 3712 wpa_printf(MSG_DEBUG, "nl80211: Register frame command "
3713 "failed (type=%u): ret=%d (%s)",
3714 type, ret, strerror(-ret));
3715 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match",
58f6fbe0
JM		 3716 match, match_len);
3717 goto nla_put_failure;
3718 }
3719 ret = 0;
3720nla_put_failure:
3721 nlmsg_free(msg);
3722 return ret;
3723}
3724
3725
a11241fa
JB		 3726static int nl80211_alloc_mgmt_handle(struct i802_bss *bss)
3727{
3728 struct wpa_driver_nl80211_data *drv = bss->drv;
3729
481234cf 3730 if (bss->nl_mgmt) {
a11241fa 3731 wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting "
36488c05 3732 "already on! (nl_mgmt=%p)", bss->nl_mgmt);
a11241fa
JB		 3733 return -1;
3734 }
3735
481234cf
JM		 3736 bss->nl_mgmt = nl_create_handle(drv->nl_cb, "mgmt");
3737 if (bss->nl_mgmt == NULL)
a11241fa
JB		 3738 return -1;
3739
481234cf 3740 eloop_register_read_sock(nl_socket_get_fd(bss->nl_mgmt),
a11241fa 3741 wpa_driver_nl80211_event_receive, bss->nl_cb,
481234cf 3742 bss->nl_mgmt);
a11241fa
JB		 3743
3744 return 0;
3745}
3746
3747
3748static int nl80211_register_action_frame(struct i802_bss *bss,
bd94971e
JB		 3749 const u8 *match, size_t match_len)
3750{
3751 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4);
481234cf 3752 return nl80211_register_frame(bss, bss->nl_mgmt,
5582a5d1 3753 type, match, match_len);
bd94971e
JB		 3754}
3755
3756
a11241fa 3757static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss)
58f6fbe0 3758{
a11241fa
JB		 3759 struct wpa_driver_nl80211_data *drv = bss->drv;
3760
3761 if (nl80211_alloc_mgmt_handle(bss))
3762 return -1;
36488c05
JM		 3763 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP "
3764 "handle %p", bss->nl_mgmt);
a11241fa 3765
4fe9fa0d 3766#if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING)
046b26a2 3767 /* GAS Initial Request */
a11241fa 3768 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0)
046b26a2
JM		 3769 return -1;
3770 /* GAS Initial Response */
a11241fa 3771 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0)
046b26a2 3772 return -1;
18708aad 3773 /* GAS Comeback Request */
a11241fa 3774 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0)
18708aad
JM		 3775 return -1;
3776 /* GAS Comeback Response */
a11241fa 3777 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0)
18708aad 3778 return -1;
4fe9fa0d
JM		 3779#endif /* CONFIG_P2P || CONFIG_INTERWORKING */
3780#ifdef CONFIG_P2P
046b26a2 3781 /* P2P Public Action */
a11241fa 3782 if (nl80211_register_action_frame(bss,
046b26a2
JM		 3783 (u8 *) "\x04\x09\x50\x6f\x9a\x09",
3784 6) < 0)
3785 return -1;
3786 /* P2P Action */
a11241fa 3787 if (nl80211_register_action_frame(bss,
046b26a2
JM		 3788 (u8 *) "\x7f\x50\x6f\x9a\x09",
3789 5) < 0)
3790 return -1;
3791#endif /* CONFIG_P2P */
7d878ca7
JM		 3792#ifdef CONFIG_IEEE80211W
3793 /* SA Query Response */
a11241fa 3794 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0)
7d878ca7
JM		 3795 return -1;
3796#endif /* CONFIG_IEEE80211W */
35287637
AN		 3797#ifdef CONFIG_TDLS
3798 if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) {
3799 /* TDLS Discovery Response */
aa543c0c 3800 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) <
35287637
AN		 3801 0)
3802 return -1;
3803 }
3804#endif /* CONFIG_TDLS */
046b26a2 3805
7b90c16a 3806 /* FT Action frames */
a11241fa 3807 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0)
7b90c16a
JM		 3808 return -1;
3809 else
3810 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT |
3811 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK;
3812
71269b37 3813 /* WNM - BSS Transition Management Request */
a11241fa
JB		 3814 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0)
3815 return -1;
bd896433
JM		 3816 /* WNM-Sleep Mode Response */
3817 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x11", 2) < 0)
3818 return -1;
a11241fa
JB		 3819
3820 return 0;
3821}
3822
3823
02bb32c3
JB		 3824static int nl80211_register_spurious_class3(struct i802_bss *bss)
3825{
3826 struct wpa_driver_nl80211_data *drv = bss->drv;
3827 struct nl_msg *msg;
3828 int ret = -1;
3829
3830 msg = nlmsg_alloc();
3831 if (!msg)
3832 return -1;
3833
3834 nl80211_cmd(drv, msg, 0, NL80211_CMD_UNEXPECTED_FRAME);
3835
3836 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
3837
481234cf 3838 ret = send_and_recv(drv->global, bss->nl_mgmt, msg, NULL, NULL);
02bb32c3
JB		 3839 msg = NULL;
3840 if (ret) {
3841 wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 "
3842 "failed: ret=%d (%s)",
3843 ret, strerror(-ret));
3844 goto nla_put_failure;
3845 }
3846 ret = 0;
3847nla_put_failure:
3848 nlmsg_free(msg);
3849 return ret;
3850}
3851
3852
a11241fa
JB		 3853static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss)
3854{
3855 static const int stypes[] = {
3856 WLAN_FC_STYPE_AUTH,
3857 WLAN_FC_STYPE_ASSOC_REQ,
3858 WLAN_FC_STYPE_REASSOC_REQ,
3859 WLAN_FC_STYPE_DISASSOC,
3860 WLAN_FC_STYPE_DEAUTH,
3861 WLAN_FC_STYPE_ACTION,
3862 WLAN_FC_STYPE_PROBE_REQ,
3863/* Beacon doesn't work as mac80211 doesn't currently allow
3864 * it, but it wouldn't really be the right thing anyway as
3865 * it isn't per interface ... maybe just dump the scan
3866 * results periodically for OLBC?
3867 */
3868// WLAN_FC_STYPE_BEACON,
3869 };
3870 unsigned int i;
3871
3872 if (nl80211_alloc_mgmt_handle(bss))
71269b37 3873 return -1;
36488c05
JM		 3874 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP "
3875 "handle %p", bss->nl_mgmt);
71269b37 3876
a11241fa 3877 for (i = 0; i < sizeof(stypes) / sizeof(stypes[0]); i++) {
481234cf 3878 if (nl80211_register_frame(bss, bss->nl_mgmt,
a11241fa
JB		 3879 (WLAN_FC_TYPE_MGMT << 2) |
3880 (stypes[i] << 4),
3881 NULL, 0) < 0) {
3882 goto out_err;
3883 }
3884 }
3885
02bb32c3
JB		 3886 if (nl80211_register_spurious_class3(bss))
3887 goto out_err;
3888
e32ad281
JB		 3889 if (nl80211_get_wiphy_data_ap(bss) == NULL)
3890 goto out_err;
3891
58f6fbe0 3892 return 0;
a11241fa
JB		 3893
3894out_err:
481234cf 3895 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt));
a11241fa
JB		 3896 nl_destroy_handles(&bss->nl_mgmt);
3897 return -1;
3898}
3899
3900
a6cc0602
JM		 3901static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss)
3902{
3903 if (nl80211_alloc_mgmt_handle(bss))
3904 return -1;
3905 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP "
3906 "handle %p (device SME)", bss->nl_mgmt);
3907
3908 if (nl80211_register_frame(bss, bss->nl_mgmt,
3909 (WLAN_FC_TYPE_MGMT << 2) |
3910 (WLAN_FC_STYPE_ACTION << 4),
3911 NULL, 0) < 0)
3912 goto out_err;
3913
3914 return 0;
3915
3916out_err:
3917 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt));
3918 nl_destroy_handles(&bss->nl_mgmt);
3919 return -1;
3920}
3921
3922
36488c05 3923static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason)
a11241fa 3924{
481234cf 3925 if (bss->nl_mgmt == NULL)
a11241fa 3926 return;
36488c05
JM		 3927 wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p "
3928 "(%s)", bss->nl_mgmt, reason);
481234cf 3929 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt));
a11241fa 3930 nl_destroy_handles(&bss->nl_mgmt);
e32ad281
JB		 3931
3932 nl80211_put_wiphy_data_ap(bss);
58f6fbe0
JM		 3933}
3934
3935
8401a6b0
JM		 3936static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx)
3937{
3938 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL);
3939}
3940
3941
eb4582f2
AS		 3942static void nl80211_del_p2pdev(struct i802_bss *bss)
3943{
3944 struct wpa_driver_nl80211_data *drv = bss->drv;
3945 struct nl_msg *msg;
3946 int ret;
3947
3948 msg = nlmsg_alloc();
3949 if (!msg)
3950 return;
3951
3952 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE);
3953 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id);
3954
3955 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3956 msg = NULL;
3957
3958 wpa_printf(MSG_DEBUG, "nl80211: Delete P2P Device %s (0x%llx): %s",
3959 bss->ifname, (long long unsigned int) bss->wdev_id,
3960 strerror(ret));
3961
3962nla_put_failure:
3963 nlmsg_free(msg);
3964}
3965
3966
eb4582f2 3967static int nl80211_set_p2pdev(struct i802_bss *bss, int start)
f632e483
AS		 3968{
3969 struct wpa_driver_nl80211_data *drv = bss->drv;
3970 struct nl_msg *msg;
3971 int ret = -1;
3972
f632e483
AS		 3973 msg = nlmsg_alloc();
3974 if (!msg)
3975 return -1;
3976
eb4582f2
AS		 3977 if (start)
3978 nl80211_cmd(drv, msg, 0, NL80211_CMD_START_P2P_DEVICE);
3979 else
3980 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_P2P_DEVICE);
3981
f632e483
AS		 3982 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id);
3983
3984 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3985 msg = NULL;
3986
eb4582f2
AS		 3987 wpa_printf(MSG_DEBUG, "nl80211: %s P2P Device %s (0x%llx): %s",
3988 start ? "Start" : "Stop",
3989 bss->ifname, (long long unsigned int) bss->wdev_id,
3990 strerror(ret));
3991
f632e483
AS		 3992nla_put_failure:
3993 nlmsg_free(msg);
3994 return ret;
3995}
f632e483
AS		 3996
3997
91724d6f
AS		 3998static int i802_set_iface_flags(struct i802_bss *bss, int up)
3999{
4000 enum nl80211_iftype nlmode;
4001
4002 nlmode = nl80211_get_ifmode(bss);
4003 if (nlmode != NL80211_IFTYPE_P2P_DEVICE) {
4004 return linux_set_iface_flags(bss->drv->global->ioctl_sock,
4005 bss->ifname, up);
4006 }
4007
4008 /* P2P Device has start/stop which is equivalent */
4009 return nl80211_set_p2pdev(bss, up);
4010}
4011
4012
362f781e 4013static int
7524cfb1
JM		 4014wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv)
4015{
f632e483 4016#ifndef HOSTAPD
8e12685c 4017 enum nl80211_iftype nlmode = NL80211_IFTYPE_STATION;
f632e483 4018#endif /* HOSTAPD */
a2e40bb6 4019 struct i802_bss *bss = &drv->first_bss;
8401a6b0 4020 int send_rfkill_event = 0;
f632e483 4021 int dynamic_if;
a2e40bb6
FF		 4022
4023 drv->ifindex = if_nametoindex(bss->ifname);
f632e483
AS		 4024 bss->ifindex = drv->ifindex;
4025 bss->wdev_id = drv->global->if_add_wdevid;
4026 bss->wdev_id_set = drv->global->if_add_wdevid_set;
4027
4028 dynamic_if = drv->ifindex == drv->global->if_add_ifindex;
4029 dynamic_if = dynamic_if || drv->global->if_add_wdevid_set;
4030 drv->global->if_add_wdevid_set = 0;
4031
4032 if (wpa_driver_nl80211_capa(drv))
4033 return -1;
a87c9d96 4034
bbaf0837 4035#ifndef HOSTAPD
8e12685c
AS		 4036 if (dynamic_if)
4037 nlmode = nl80211_get_ifmode(bss);
f632e483 4038
ff6a158b
JM		 4039 /*
4040 * Make sure the interface starts up in station mode unless this is a
4041 * dynamically added interface (e.g., P2P) that was already configured
4042 * with proper iftype.
4043 */
8e12685c
AS		 4044 if (wpa_driver_nl80211_set_mode(bss, nlmode) < 0) {
4045 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver to use managed mode");
4046 return -1;
a87c9d96 4047 }
8e12685c 4048 drv->nlmode = nlmode;
a87c9d96 4049
f632e483 4050 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) {
eb4582f2 4051 int ret = nl80211_set_p2pdev(bss, 1);
f632e483
AS		 4052 if (ret < 0)
4053 wpa_printf(MSG_ERROR, "nl80211: Could not start P2P device");
597b94f5 4054 nl80211_get_macaddr(bss);
f632e483
AS		 4055 return ret;
4056 }
4057
c81eff1a 4058 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) {
8401a6b0
JM		 4059 if (rfkill_is_blocked(drv->rfkill)) {
4060 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable "
4061 "interface '%s' due to rfkill",
4062 bss->ifname);
a63063b4 4063 drv->if_disabled = 1;
8401a6b0
JM		 4064 send_rfkill_event = 1;
4065 } else {
4066 wpa_printf(MSG_ERROR, "nl80211: Could not set "
4067 "interface '%s' UP", bss->ifname);
4068 return -1;
4069 }
362f781e 4070 }
3f5285e8 4071
36d84860 4072 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex,
e2d02c29 4073 1, IF_OPER_DORMANT);
bbaf0837 4074#endif /* HOSTAPD */
362f781e 4075
c81eff1a 4076 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
341eebee 4077 bss->addr))
2136f480 4078 return -1;
f2ed8023 4079
8401a6b0
JM		 4080 if (send_rfkill_event) {
4081 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill,
4082 drv, drv->ctx);
4083 }
4084
362f781e 4085 return 0;
3f5285e8
JM		 4086}
4087
4088
8a27af5c
JM		 4089static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv)
4090{
4091 struct nl_msg *msg;
4092
4093 msg = nlmsg_alloc();
4094 if (!msg)
4095 return -ENOMEM;
4096
9fb04070 4097 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON);
8a27af5c
JM		 4098 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4099
4100 return send_and_recv_msgs(drv, msg, NULL, NULL);
4101 nla_put_failure:
5883168a 4102 nlmsg_free(msg);
8a27af5c
JM		 4103 return -ENOBUFS;
4104}
8a27af5c
JM		 4105
4106
3f5285e8 4107/**
7e5ba1b9 4108 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface
9ebce9c5 4109 * @bss: Pointer to private nl80211 data from wpa_driver_nl80211_init()
3f5285e8
JM		 4110 *
4111 * Shut down driver interface and processing of driver events. Free
4112 * private data buffer if one was allocated in wpa_driver_nl80211_init().
4113 */
9ebce9c5 4114static void wpa_driver_nl80211_deinit(struct i802_bss *bss)
3f5285e8 4115{
a2e40bb6 4116 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8 4117
873d0fcf 4118 bss->in_deinit = 1;
32ab4855
JB		 4119 if (drv->data_tx_status)
4120 eloop_unregister_read_sock(drv->eapol_tx_sock);
d12dab4c
JB		 4121 if (drv->eapol_tx_sock >= 0)
4122 close(drv->eapol_tx_sock);
f10bfc9a 4123
481234cf 4124 if (bss->nl_preq)
5582a5d1 4125 wpa_driver_nl80211_probe_req_report(bss, 0);
e17a2477 4126 if (bss->added_if_into_bridge) {
c81eff1a
BG		 4127 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname,
4128 bss->ifname) < 0)
94627f6c
JM		 4129 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
4130 "interface %s from bridge %s: %s",
e17a2477 4131 bss->ifname, bss->brname, strerror(errno));
94627f6c 4132 }
e17a2477 4133 if (bss->added_bridge) {
c81eff1a 4134 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0)
94627f6c
JM		 4135 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
4136 "bridge %s: %s",
e17a2477 4137 bss->brname, strerror(errno));
94627f6c
JM		 4138 }
4139
460456f8 4140 nl80211_remove_monitor_interface(drv);
8a27af5c 4141
b1f625e0 4142 if (is_ap_interface(drv->nlmode))
8a27af5c 4143 wpa_driver_nl80211_del_beacon(drv);
0915d02c 4144
bbaf0837
JM		 4145#ifdef HOSTAPD
4146 if (drv->last_freq_ht) {
4147 /* Clear HT flags from the driver */
4148 struct hostapd_freq_params freq;
4149 os_memset(&freq, 0, sizeof(freq));
4150 freq.freq = drv->last_freq;
9ebce9c5 4151 wpa_driver_nl80211_set_freq(bss, &freq);
bbaf0837
JM		 4152 }
4153
bbaf0837
JM		 4154 if (drv->eapol_sock >= 0) {
4155 eloop_unregister_read_sock(drv->eapol_sock);
4156 close(drv->eapol_sock);
4157 }
4158
4159 if (drv->if_indices != drv->default_if_indices)
4160 os_free(drv->if_indices);
1b648c7e 4161#endif /* HOSTAPD */
3f5285e8 4162
b3af99d2 4163 if (drv->disabled_11b_rates)
4e5cb1a3
JM		 4164 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
4165
36d84860
BG		 4166 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0,
4167 IF_OPER_UP);
8401a6b0 4168 rfkill_deinit(drv->rfkill);
3f5285e8 4169
bbaf0837
JM		 4170 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
4171
91724d6f 4172 (void) i802_set_iface_flags(bss, 0);
8e12685c
AS		 4173 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) {
4174 wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION);
4175 } else {
4176 nl80211_mgmt_unsubscribe(bss, "deinit");
eb4582f2 4177 nl80211_del_p2pdev(bss);
8e12685c 4178 }
1afc986d 4179 nl_cb_put(drv->nl_cb);
3f5285e8 4180
cc7a48d1
JB		 4181 nl80211_destroy_bss(&drv->first_bss);
4182
3812464c
JM		 4183 os_free(drv->filter_ssids);
4184
536fd62d
JM		 4185 os_free(drv->auth_ie);
4186
dac12351 4187 if (drv->in_interface_list)
f2ed8023
JM		 4188 dl_list_del(&drv->list);
4189
8cd6b7bc
JB		 4190 os_free(drv->extended_capa);
4191 os_free(drv->extended_capa_mask);
3f5285e8
JM		 4192 os_free(drv);
4193}
4194
4195
4196/**
4197 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion
ad1e68e6 4198 * @eloop_ctx: Driver private data
3f5285e8
JM		 4199 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init()
4200 *
4201 * This function can be used as registered timeout when starting a scan to
4202 * generate a scan completed event if the driver does not report this.
4203 */
4204static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx)
4205{
ad1e68e6 4206 struct wpa_driver_nl80211_data *drv = eloop_ctx;
b1f625e0 4207 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) {
a2e40bb6 4208 wpa_driver_nl80211_set_mode(&drv->first_bss,
b1f625e0
EP		 4209 drv->ap_scan_as_station);
4210 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
ad1e68e6 4211 }
3f5285e8
JM		 4212 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results");
4213 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL);
4214}
4215
4216
95ac3bf4
JM		 4217static struct nl_msg *
4218nl80211_scan_common(struct wpa_driver_nl80211_data *drv, u8 cmd,
d3aaef80 4219 struct wpa_driver_scan_params *params, u64 *wdev_id)
3f5285e8 4220{
95ac3bf4 4221 struct nl_msg *msg;
6a1063e0 4222 size_t i;
3f5285e8 4223
0e75527f 4224 msg = nlmsg_alloc();
f0494d0f 4225 if (!msg)
95ac3bf4 4226 return NULL;
3812464c 4227
95ac3bf4 4228 nl80211_cmd(drv, msg, 0, cmd);
0e75527f 4229
d3aaef80
DS		 4230 if (!wdev_id)
4231 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4232 else
4233 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, *wdev_id);
3f5285e8 4234
f0494d0f 4235 if (params->num_ssids) {
8970bae8
JB		 4236 struct nlattr *ssids;
4237
4238 ssids = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
f0494d0f 4239 if (ssids == NULL)
95ac3bf4 4240 goto fail;
f0494d0f
JM		 4241 for (i = 0; i < params->num_ssids; i++) {
4242 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID",
4243 params->ssids[i].ssid,
4244 params->ssids[i].ssid_len);
8970bae8
JB		 4245 if (nla_put(msg, i + 1, params->ssids[i].ssid_len,
4246 params->ssids[i].ssid) < 0)
95ac3bf4 4247 goto fail;
f0494d0f 4248 }
8970bae8 4249 nla_nest_end(msg, ssids);
3f5285e8
JM		 4250 }
4251
d173df52 4252 if (params->extra_ies) {
3b1c7bfd
JM		 4253 wpa_hexdump(MSG_MSGDUMP, "nl80211: Scan extra IEs",
4254 params->extra_ies, params->extra_ies_len);
95ac3bf4
JM		 4255 if (nla_put(msg, NL80211_ATTR_IE, params->extra_ies_len,
4256 params->extra_ies) < 0)
4257 goto fail;
d173df52
JM		 4258 }
4259
d3a98225 4260 if (params->freqs) {
8970bae8
JB		 4261 struct nlattr *freqs;
4262 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
f0494d0f 4263 if (freqs == NULL)
95ac3bf4 4264 goto fail;
9fad706c
JM		 4265 for (i = 0; params->freqs[i]; i++) {
4266 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u "
4267 "MHz", params->freqs[i]);
8970bae8 4268 if (nla_put_u32(msg, i + 1, params->freqs[i]) < 0)
95ac3bf4 4269 goto fail;
9fad706c 4270 }
8970bae8 4271 nla_nest_end(msg, freqs);
d3a98225
JM		 4272 }
4273
95ac3bf4
JM		 4274 os_free(drv->filter_ssids);
4275 drv->filter_ssids = params->filter_ssids;
4276 params->filter_ssids = NULL;
4277 drv->num_filter_ssids = params->num_filter_ssids;
4278
4279 return msg;
4280
4281fail:
d3aaef80 4282nla_put_failure:
95ac3bf4
JM		 4283 nlmsg_free(msg);
4284 return NULL;
4285}
4286
4287
4288/**
4289 * wpa_driver_nl80211_scan - Request the driver to initiate scan
9ebce9c5 4290 * @bss: Pointer to private driver data from wpa_driver_nl80211_init()
95ac3bf4
JM		 4291 * @params: Scan parameters
4292 * Returns: 0 on success, -1 on failure
4293 */
9ebce9c5 4294static int wpa_driver_nl80211_scan(struct i802_bss *bss,
95ac3bf4
JM		 4295 struct wpa_driver_scan_params *params)
4296{
95ac3bf4
JM		 4297 struct wpa_driver_nl80211_data *drv = bss->drv;
4298 int ret = -1, timeout;
8970bae8 4299 struct nl_msg *msg = NULL;
95ac3bf4 4300
565110cd 4301 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: scan request");
95ac3bf4
JM		 4302 drv->scan_for_auth = 0;
4303
d3aaef80
DS		 4304 msg = nl80211_scan_common(drv, NL80211_CMD_TRIGGER_SCAN, params,
4305 bss->wdev_id_set ? &bss->wdev_id : NULL);
95ac3bf4
JM		 4306 if (!msg)
4307 return -1;
4308
47185fc7 4309 if (params->p2p_probe) {
8970bae8
JB		 4310 struct nlattr *rates;
4311
8a6a1e1b
JM		 4312 wpa_printf(MSG_DEBUG, "nl80211: P2P probe - mask SuppRates");
4313
8970bae8 4314 rates = nla_nest_start(msg, NL80211_ATTR_SCAN_SUPP_RATES);
f0494d0f
JM		 4315 if (rates == NULL)
4316 goto nla_put_failure;
4317
47185fc7
RM		 4318 /*
4319 * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates
4320 * by masking out everything else apart from the OFDM rates 6,
4321 * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz
4322 * rates are left enabled.
4323 */
8970bae8 4324 NLA_PUT(msg, NL80211_BAND_2GHZ, 8,
47185fc7 4325 "\x0c\x12\x18\x24\x30\x48\x60\x6c");
8970bae8 4326 nla_nest_end(msg, rates);
970fa12e
RM		 4327
4328 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE);
47185fc7
RM		 4329 }
4330
0e75527f
JM		 4331 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4332 msg = NULL;
4333 if (ret) {
4334 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d "
4335 "(%s)", ret, strerror(-ret));
ad1e68e6 4336#ifdef HOSTAPD
b1f625e0 4337 if (is_ap_interface(drv->nlmode)) {
ad1e68e6
JM		 4338 /*
4339 * mac80211 does not allow scan requests in AP mode, so
4340 * try to do this in station mode.
4341 */
b1f625e0
EP		 4342 if (wpa_driver_nl80211_set_mode(
4343 bss, NL80211_IFTYPE_STATION))
ad1e68e6
JM		 4344 goto nla_put_failure;
4345
085b29f1 4346 if (wpa_driver_nl80211_scan(bss, params)) {
b1f625e0 4347 wpa_driver_nl80211_set_mode(bss, drv->nlmode);
ad1e68e6
JM		 4348 goto nla_put_failure;
4349 }
4350
4351 /* Restore AP mode when processing scan results */
b1f625e0 4352 drv->ap_scan_as_station = drv->nlmode;
ad1e68e6
JM		 4353 ret = 0;
4354 } else
4355 goto nla_put_failure;
4356#else /* HOSTAPD */
0e75527f 4357 goto nla_put_failure;
ad1e68e6 4358#endif /* HOSTAPD */
3f5285e8
JM		 4359 }
4360
4361 /* Not all drivers generate "scan completed" wireless event, so try to
4362 * read results after a timeout. */
0e75527f 4363 timeout = 10;
3f5285e8
JM		 4364 if (drv->scan_complete_events) {
4365 /*
d173df52
JM		 4366 * The driver seems to deliver events to notify when scan is
4367 * complete, so use longer timeout to avoid race conditions
4368 * with scanning and following association request.
3f5285e8
JM		 4369 */
4370 timeout = 30;
4371 }
4372 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d "
4373 "seconds", ret, timeout);
4374 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
0e75527f
JM		 4375 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout,
4376 drv, drv->ctx);
3f5285e8 4377
0e75527f 4378nla_put_failure:
0e75527f 4379 nlmsg_free(msg);
3f5285e8
JM		 4380 return ret;
4381}
4382
4383
d21c63b9
LC		 4384/**
4385 * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan
4386 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
4387 * @params: Scan parameters
4388 * @interval: Interval between scan cycles in milliseconds
4389 * Returns: 0 on success, -1 on failure or if not supported
4390 */
4391static int wpa_driver_nl80211_sched_scan(void *priv,
4392 struct wpa_driver_scan_params *params,
4393 u32 interval)
4394{
4395 struct i802_bss *bss = priv;
4396 struct wpa_driver_nl80211_data *drv = bss->drv;
6afbc3d6 4397 int ret = -1;
95ac3bf4 4398 struct nl_msg *msg;
d21c63b9
LC		 4399 size_t i;
4400
565110cd
JM		 4401 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: sched_scan request");
4402
216eede8
DS		 4403#ifdef ANDROID
4404 if (!drv->capa.sched_scan_supported)
4405 return android_pno_start(bss, params);
4406#endif /* ANDROID */
4407
d3aaef80
DS		 4408 msg = nl80211_scan_common(drv, NL80211_CMD_START_SCHED_SCAN, params,
4409 bss->wdev_id_set ? &bss->wdev_id : NULL);
6afbc3d6
JM		 4410 if (!msg)
4411 goto nla_put_failure;
d21c63b9 4412
d21c63b9
LC		 4413 NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval);
4414
bf8d6d24
TP		 4415 if ((drv->num_filter_ssids &&
4416 (int) drv->num_filter_ssids <= drv->capa.max_match_sets) ||
4417 params->filter_rssi) {
8970bae8
JB		 4418 struct nlattr *match_sets;
4419 match_sets = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
6afbc3d6
JM		 4420 if (match_sets == NULL)
4421 goto nla_put_failure;
bd525934
LC		 4422
4423 for (i = 0; i < drv->num_filter_ssids; i++) {
8970bae8 4424 struct nlattr *match_set_ssid;
bd525934
LC		 4425 wpa_hexdump_ascii(MSG_MSGDUMP,
4426 "nl80211: Sched scan filter SSID",
4427 drv->filter_ssids[i].ssid,
4428 drv->filter_ssids[i].ssid_len);
4429
8970bae8 4430 match_set_ssid = nla_nest_start(msg, i + 1);
6afbc3d6
JM		 4431 if (match_set_ssid == NULL)
4432 goto nla_put_failure;
8970bae8 4433 NLA_PUT(msg, NL80211_ATTR_SCHED_SCAN_MATCH_SSID,
bd525934
LC		 4434 drv->filter_ssids[i].ssid_len,
4435 drv->filter_ssids[i].ssid);
4436
adc96dc2 4437 nla_nest_end(msg, match_set_ssid);
bd525934
LC		 4438 }
4439
bf8d6d24 4440 if (params->filter_rssi) {
8970bae8
JB		 4441 struct nlattr *match_set_rssi;
4442 match_set_rssi = nla_nest_start(msg, 0);
6afbc3d6
JM		 4443 if (match_set_rssi == NULL)
4444 goto nla_put_failure;
8970bae8 4445 NLA_PUT_U32(msg, NL80211_SCHED_SCAN_MATCH_ATTR_RSSI,
bf8d6d24
TP		 4446 params->filter_rssi);
4447 wpa_printf(MSG_MSGDUMP,
4448 "nl80211: Sched scan RSSI filter %d dBm",
4449 params->filter_rssi);
8970bae8 4450 nla_nest_end(msg, match_set_rssi);
bf8d6d24
TP		 4451 }
4452
8970bae8 4453 nla_nest_end(msg, match_sets);
bd525934
LC		 4454 }
4455
d21c63b9
LC		 4456 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4457
4458 /* TODO: if we get an error here, we should fall back to normal scan */
4459
4460 msg = NULL;
4461 if (ret) {
4462 wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: "
4463 "ret=%d (%s)", ret, strerror(-ret));
4464 goto nla_put_failure;
4465 }
4466
4467 wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - "
4468 "scan interval %d msec", ret, interval);
4469
4470nla_put_failure:
d21c63b9 4471 nlmsg_free(msg);
d21c63b9
LC		 4472 return ret;
4473}
4474
4475
4476/**
4477 * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan
4478 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
4479 * Returns: 0 on success, -1 on failure or if not supported
4480 */
4481static int wpa_driver_nl80211_stop_sched_scan(void *priv)
4482{
4483 struct i802_bss *bss = priv;
4484 struct wpa_driver_nl80211_data *drv = bss->drv;
4485 int ret = 0;
4486 struct nl_msg *msg;
4487
216eede8
DS		 4488#ifdef ANDROID
4489 if (!drv->capa.sched_scan_supported)
4490 return android_pno_stop(bss);
4491#endif /* ANDROID */
4492
d21c63b9
LC		 4493 msg = nlmsg_alloc();
4494 if (!msg)
4495 return -1;
4496
9fb04070 4497 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN);
d21c63b9
LC		 4498
4499 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4500
4501 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4502 msg = NULL;
4503 if (ret) {
4504 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: "
4505 "ret=%d (%s)", ret, strerror(-ret));
4506 goto nla_put_failure;
4507 }
4508
4509 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret);
4510
4511nla_put_failure:
4512 nlmsg_free(msg);
4513 return ret;
4514}
4515
4516
3812464c
JM		 4517static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie)
4518{
4519 const u8 *end, *pos;
4520
4521 if (ies == NULL)
4522 return NULL;
4523
4524 pos = ies;
4525 end = ies + ies_len;
4526
4527 while (pos + 1 < end) {
4528 if (pos + 2 + pos[1] > end)
4529 break;
4530 if (pos[0] == ie)
4531 return pos;
4532 pos += 2 + pos[1];
4533 }
4534
4535 return NULL;
4536}
4537
4538
4539static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv,
4540 const u8 *ie, size_t ie_len)
4541{
4542 const u8 *ssid;
4543 size_t i;
4544
4545 if (drv->filter_ssids == NULL)
4546 return 0;
4547
4548 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID);
4549 if (ssid == NULL)
4550 return 1;
4551
4552 for (i = 0; i < drv->num_filter_ssids; i++) {
4553 if (ssid[1] == drv->filter_ssids[i].ssid_len &&
4554 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) ==
4555 0)
4556 return 0;
4557 }
4558
4559 return 1;
4560}
4561
4562
b3db1e1c 4563static int bss_info_handler(struct nl_msg *msg, void *arg)
3f5285e8 4564{
b3db1e1c
JM		 4565 struct nlattr *tb[NL80211_ATTR_MAX + 1];
4566 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
4567 struct nlattr *bss[NL80211_BSS_MAX + 1];
4568 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
4569 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC },
4570 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 },
4571 [NL80211_BSS_TSF] = { .type = NLA_U64 },
4572 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 },
4573 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 },
4574 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC },
4575 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 },
4576 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 },
e6b8efeb 4577 [NL80211_BSS_STATUS] = { .type = NLA_U32 },
b3ad11bb 4578 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 },
8c090654 4579 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC },
b3db1e1c 4580 };
3812464c
JM		 4581 struct nl80211_bss_info_arg *_arg = arg;
4582 struct wpa_scan_results *res = _arg->res;
3f5285e8
JM		 4583 struct wpa_scan_res **tmp;
4584 struct wpa_scan_res *r;
8c090654
JM		 4585 const u8 *ie, *beacon_ie;
4586 size_t ie_len, beacon_ie_len;
4587 u8 *pos;
46957a9b 4588 size_t i;
3f5285e8 4589
b3db1e1c
JM		 4590 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
4591 genlmsg_attrlen(gnlh, 0), NULL);
4592 if (!tb[NL80211_ATTR_BSS])
4593 return NL_SKIP;
4594 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS],
4595 bss_policy))
4596 return NL_SKIP;
f5a8d422
JM		 4597 if (bss[NL80211_BSS_STATUS]) {
4598 enum nl80211_bss_status status;
4599 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
4600 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
4601 bss[NL80211_BSS_FREQUENCY]) {
4602 _arg->assoc_freq =
4603 nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
4604 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz",
4605 _arg->assoc_freq);
4606 }
20f5a4c2
JM		 4607 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
4608 bss[NL80211_BSS_BSSID]) {
4609 os_memcpy(_arg->assoc_bssid,
4610 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN);
4611 wpa_printf(MSG_DEBUG, "nl80211: Associated with "
4612 MACSTR, MAC2STR(_arg->assoc_bssid));
4613 }
f5a8d422
JM		 4614 }
4615 if (!res)
4616 return NL_SKIP;
b3db1e1c
JM		 4617 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) {
4618 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
4619 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
4620 } else {
4621 ie = NULL;
4622 ie_len = 0;
4623 }
8c090654
JM		 4624 if (bss[NL80211_BSS_BEACON_IES]) {
4625 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]);
4626 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]);
4627 } else {
4628 beacon_ie = NULL;
4629 beacon_ie_len = 0;
4630 }
3f5285e8 4631
3812464c
JM		 4632 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie,
4633 ie ? ie_len : beacon_ie_len))
4634 return NL_SKIP;
4635
8c090654 4636 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len);
3f5285e8 4637 if (r == NULL)
b3db1e1c
JM		 4638 return NL_SKIP;
4639 if (bss[NL80211_BSS_BSSID])
4640 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]),
4641 ETH_ALEN);
4642 if (bss[NL80211_BSS_FREQUENCY])
4643 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
4644 if (bss[NL80211_BSS_BEACON_INTERVAL])
4645 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]);
4646 if (bss[NL80211_BSS_CAPABILITY])
4647 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]);
7c2849d2
JM		 4648 r->flags |= WPA_SCAN_NOISE_INVALID;
4649 if (bss[NL80211_BSS_SIGNAL_MBM]) {
b3db1e1c 4650 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]);
7c2849d2
JM		 4651 r->level /= 100; /* mBm to dBm */
4652 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID;
4653 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) {
4654 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]);
98ac6763 4655 r->flags |= WPA_SCAN_QUAL_INVALID;
7c2849d2
JM		 4656 } else
4657 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID;
b3db1e1c
JM		 4658 if (bss[NL80211_BSS_TSF])
4659 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]);
b3ad11bb
JM		 4660 if (bss[NL80211_BSS_SEEN_MS_AGO])
4661 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]);
b3db1e1c 4662 r->ie_len = ie_len;
8c090654
JM		 4663 pos = (u8 *) (r + 1);
4664 if (ie) {
4665 os_memcpy(pos, ie, ie_len);
4666 pos += ie_len;
4667 }
4668 r->beacon_ie_len = beacon_ie_len;
4669 if (beacon_ie)
4670 os_memcpy(pos, beacon_ie, beacon_ie_len);
3f5285e8 4671
e6b8efeb
JM		 4672 if (bss[NL80211_BSS_STATUS]) {
4673 enum nl80211_bss_status status;
4674 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
4675 switch (status) {
4676 case NL80211_BSS_STATUS_AUTHENTICATED:
4677 r->flags |= WPA_SCAN_AUTHENTICATED;
4678 break;
4679 case NL80211_BSS_STATUS_ASSOCIATED:
4680 r->flags |= WPA_SCAN_ASSOCIATED;
4681 break;
4682 default:
4683 break;
4684 }
4685 }
4686
46957a9b
JM		 4687 /*
4688 * cfg80211 maintains separate BSS table entries for APs if the same
4689 * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does
4690 * not use frequency as a separate key in the BSS table, so filter out
4691 * duplicated entries. Prefer associated BSS entry in such a case in
4692 * order to get the correct frequency into the BSS table.
4693 */
4694 for (i = 0; i < res->num; i++) {
4695 const u8 *s1, *s2;
4696 if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0)
4697 continue;
4698
4699 s1 = nl80211_get_ie((u8 *) (res->res[i] + 1),
4700 res->res[i]->ie_len, WLAN_EID_SSID);
4701 s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID);
4702 if (s1 == NULL || s2 == NULL || s1[1] != s2[1] ||
4703 os_memcmp(s1, s2, 2 + s1[1]) != 0)
4704 continue;
4705
4706 /* Same BSSID,SSID was already included in scan results */
4707 wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result "
4708 "for " MACSTR, MAC2STR(r->bssid));
4709
4710 if ((r->flags & WPA_SCAN_ASSOCIATED) &&
4711 !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) {
4712 os_free(res->res[i]);
4713 res->res[i] = r;
4714 } else
4715 os_free(r);
4716 return NL_SKIP;
4717 }
4718
067ffa26
JM		 4719 tmp = os_realloc_array(res->res, res->num + 1,
4720 sizeof(struct wpa_scan_res *));
3f5285e8
JM		 4721 if (tmp == NULL) {
4722 os_free(r);
b3db1e1c 4723 return NL_SKIP;
3f5285e8
JM		 4724 }
4725 tmp[res->num++] = r;
4726 res->res = tmp;
b3db1e1c
JM		 4727
4728 return NL_SKIP;
3f5285e8 4729}
b3db1e1c 4730
3f5285e8 4731
d72aad94
JM		 4732static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv,
4733 const u8 *addr)
4734{
4735 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
4736 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state "
582507be 4737 "mismatch (" MACSTR ")", MAC2STR(addr));
d72aad94
JM		 4738 wpa_driver_nl80211_mlme(drv, addr,
4739 NL80211_CMD_DEAUTHENTICATE,
77339912 4740 WLAN_REASON_PREV_AUTH_NOT_VALID, 1);
d72aad94
JM		 4741 }
4742}
4743
4744
e6b8efeb
JM		 4745static void wpa_driver_nl80211_check_bss_status(
4746 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res)
4747{
4748 size_t i;
4749
4750 for (i = 0; i < res->num; i++) {
4751 struct wpa_scan_res *r = res->res[i];
4752 if (r->flags & WPA_SCAN_AUTHENTICATED) {
4753 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
4754 "indicates BSS status with " MACSTR
4755 " as authenticated",
4756 MAC2STR(r->bssid));
b1f625e0 4757 if (is_sta_interface(drv->nlmode) &&
e6b8efeb
JM		 4758 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 &&
4759 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) !=
4760 0) {
4761 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID"
4762 " in local state (auth=" MACSTR
4763 " assoc=" MACSTR ")",
4764 MAC2STR(drv->auth_bssid),
4765 MAC2STR(drv->bssid));
582507be 4766 clear_state_mismatch(drv, r->bssid);
e6b8efeb
JM		 4767 }
4768 }
4769
4770 if (r->flags & WPA_SCAN_ASSOCIATED) {
4771 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
4772 "indicate BSS status with " MACSTR
4773 " as associated",
4774 MAC2STR(r->bssid));
b1f625e0 4775 if (is_sta_interface(drv->nlmode) &&
e6b8efeb
JM		 4776 !drv->associated) {
4777 wpa_printf(MSG_DEBUG, "nl80211: Local state "
4778 "(not associated) does not match "
4779 "with BSS state");
d72aad94 4780 clear_state_mismatch(drv, r->bssid);
b1f625e0 4781 } else if (is_sta_interface(drv->nlmode) &&
e6b8efeb
JM		 4782 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) !=
4783 0) {
4784 wpa_printf(MSG_DEBUG, "nl80211: Local state "
4785 "(associated with " MACSTR ") does "
4786 "not match with BSS state",
d72aad94
JM		 4787 MAC2STR(drv->bssid));
4788 clear_state_mismatch(drv, r->bssid);
4789 clear_state_mismatch(drv, drv->bssid);
e6b8efeb
JM		 4790 }
4791 }
4792 }
4793}
4794
4795
7e5ba1b9 4796static struct wpa_scan_results *
8856462d 4797nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv)
3f5285e8 4798{
b3db1e1c 4799 struct nl_msg *msg;
3f5285e8 4800 struct wpa_scan_results *res;
b3db1e1c 4801 int ret;
3812464c 4802 struct nl80211_bss_info_arg arg;
3f5285e8
JM		 4803
4804 res = os_zalloc(sizeof(*res));
b3db1e1c 4805 if (res == NULL)
8e2c104f 4806 return NULL;
b3db1e1c
JM		 4807 msg = nlmsg_alloc();
4808 if (!msg)
4809 goto nla_put_failure;
3f5285e8 4810
9fb04070 4811 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
fdc554b8
AS		 4812 if (nl80211_set_iface_id(msg, &drv->first_bss) < 0)
4813 goto nla_put_failure;
3f5285e8 4814
3812464c
JM		 4815 arg.drv = drv;
4816 arg.res = res;
4817 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
b3db1e1c
JM		 4818 msg = NULL;
4819 if (ret == 0) {
577db0ae
GM		 4820 wpa_printf(MSG_DEBUG, "nl80211: Received scan results (%lu "
4821 "BSSes)", (unsigned long) res->num);
4822 nl80211_get_noise_for_scan_results(drv, res);
b3db1e1c 4823 return res;
3f5285e8 4824 }
b3db1e1c
JM		 4825 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
4826 "(%s)", ret, strerror(-ret));
4827nla_put_failure:
4828 nlmsg_free(msg);
4829 wpa_scan_results_free(res);
4830 return NULL;
3f5285e8
JM		 4831}
4832
4833
8856462d
JM		 4834/**
4835 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results
4836 * @priv: Pointer to private wext data from wpa_driver_nl80211_init()
4837 * Returns: Scan results on success, -1 on failure
4838 */
4839static struct wpa_scan_results *
4840wpa_driver_nl80211_get_scan_results(void *priv)
4841{
a2e40bb6
FF		 4842 struct i802_bss *bss = priv;
4843 struct wpa_driver_nl80211_data *drv = bss->drv;
8856462d
JM		 4844 struct wpa_scan_results *res;
4845
4846 res = nl80211_get_scan_results(drv);
4847 if (res)
4848 wpa_driver_nl80211_check_bss_status(drv, res);
4849 return res;
4850}
4851
4852
4853static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv)
4854{
4855 struct wpa_scan_results *res;
4856 size_t i;
4857
4858 res = nl80211_get_scan_results(drv);
4859 if (res == NULL) {
4860 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results");
4861 return;
4862 }
4863
4864 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump");
4865 for (i = 0; i < res->num; i++) {
4866 struct wpa_scan_res *r = res->res[i];
4867 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s",
4868 (int) i, (int) res->num, MAC2STR(r->bssid),
4869 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "",
4870 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : "");
4871 }
4872
4873 wpa_scan_results_free(res);
4874}
4875
4876
9ebce9c5 4877static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss,
71934751
JM		 4878 enum wpa_alg alg, const u8 *addr,
4879 int key_idx, int set_tx,
642187d6
JM		 4880 const u8 *seq, size_t seq_len,
4881 const u8 *key, size_t key_len)
3f5285e8 4882{
a2e40bb6 4883 struct wpa_driver_nl80211_data *drv = bss->drv;
e472e1b4 4884 int ifindex;
3f5285e8 4885 struct nl_msg *msg;
1ad1cdc2 4886 int ret;
3f5285e8 4887
e472e1b4
AS		 4888 /* Ignore for P2P Device */
4889 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE)
4890 return 0;
4891
4892 ifindex = if_nametoindex(ifname);
8393e1a0 4893 wpa_printf(MSG_DEBUG, "%s: ifindex=%d (%s) alg=%d addr=%p key_idx=%d "
1ad1cdc2 4894 "set_tx=%d seq_len=%lu key_len=%lu",
8393e1a0 4895 __func__, ifindex, ifname, alg, addr, key_idx, set_tx,
3f5285e8 4896 (unsigned long) seq_len, (unsigned long) key_len);
8c66e185
JM		 4897#ifdef CONFIG_TDLS
4898 if (key_idx == -1)
4899 key_idx = 0;
4900#endif /* CONFIG_TDLS */
3f5285e8
JM		 4901
4902 msg = nlmsg_alloc();
1ad1cdc2
JM		 4903 if (!msg)
4904 return -ENOMEM;
3f5285e8
JM		 4905
4906 if (alg == WPA_ALG_NONE) {
9fb04070 4907 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY);
3f5285e8 4908 } else {
9fb04070 4909 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY);
3f5285e8 4910 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key);
d723bab4
JM		 4911 switch (alg) {
4912 case WPA_ALG_WEP:
4913 if (key_len == 5)
4914 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4915 WLAN_CIPHER_SUITE_WEP40);
4916 else
4917 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4918 WLAN_CIPHER_SUITE_WEP104);
4919 break;
4920 case WPA_ALG_TKIP:
4921 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4922 WLAN_CIPHER_SUITE_TKIP);
4923 break;
4924 case WPA_ALG_CCMP:
4925 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4926 WLAN_CIPHER_SUITE_CCMP);
4927 break;
eb7719ff
JM		 4928 case WPA_ALG_GCMP:
4929 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4930 WLAN_CIPHER_SUITE_GCMP);
4931 break;
d723bab4
JM		 4932 case WPA_ALG_IGTK:
4933 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4934 WLAN_CIPHER_SUITE_AES_CMAC);
4935 break;
369c8d7b
JM		 4936 case WPA_ALG_SMS4:
4937 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4938 WLAN_CIPHER_SUITE_SMS4);
4939 break;
4940 case WPA_ALG_KRK:
4941 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4942 WLAN_CIPHER_SUITE_KRK);
4943 break;
d723bab4
JM		 4944 default:
4945 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
4946 "algorithm %d", __func__, alg);
3f5285e8
JM		 4947 nlmsg_free(msg);
4948 return -1;
4949 }
4950 }
4951
849ef835 4952 if (seq && seq_len)
1ad1cdc2
JM		 4953 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq);
4954
0382097e 4955 if (addr && !is_broadcast_ether_addr(addr)) {
3f5285e8
JM		 4956 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr));
4957 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
89c38e32
JM		 4958
4959 if (alg != WPA_ALG_WEP && key_idx && !set_tx) {
4960 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK");
4961 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE,
4962 NL80211_KEYTYPE_GROUP);
4963 }
60ea8187 4964 } else if (addr && is_broadcast_ether_addr(addr)) {
8970bae8
JB		 4965 struct nlattr *types;
4966
60ea8187 4967 wpa_printf(MSG_DEBUG, " broadcast key");
8970bae8
JB		 4968
4969 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES);
60ea8187
JM		 4970 if (!types)
4971 goto nla_put_failure;
8970bae8
JB		 4972 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
4973 nla_nest_end(msg, types);
3f5285e8
JM		 4974 }
4975 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1ad1cdc2 4976 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
3f5285e8 4977
1ad1cdc2 4978 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
15664ad0 4979 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE)
1ad1cdc2
JM		 4980 ret = 0;
4981 if (ret)
4982 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)",
4983 ret, strerror(-ret));
3f5285e8 4984
1ad1cdc2
JM		 4985 /*
4986 * If we failed or don't need to set the default TX key (below),
4987 * we're done here.
4988 */
4989 if (ret || !set_tx || alg == WPA_ALG_NONE)
4990 return ret;
b1f625e0 4991 if (is_ap_interface(drv->nlmode) && addr &&
0382097e 4992 !is_broadcast_ether_addr(addr))
de12717a 4993 return ret;
3f5285e8 4994
1ad1cdc2
JM		 4995 msg = nlmsg_alloc();
4996 if (!msg)
4997 return -ENOMEM;
3f5285e8 4998
9fb04070 4999 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY);
1ad1cdc2
JM		 5000 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
5001 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
5002 if (alg == WPA_ALG_IGTK)
5003 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT);
5004 else
5005 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
60ea8187 5006 if (addr && is_broadcast_ether_addr(addr)) {
8970bae8
JB		 5007 struct nlattr *types;
5008
5009 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES);
60ea8187
JM		 5010 if (!types)
5011 goto nla_put_failure;
8970bae8
JB		 5012 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
5013 nla_nest_end(msg, types);
60ea8187 5014 } else if (addr) {
8970bae8
JB		 5015 struct nlattr *types;
5016
5017 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES);
60ea8187
JM		 5018 if (!types)
5019 goto nla_put_failure;
8970bae8
JB		 5020 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_UNICAST);
5021 nla_nest_end(msg, types);
60ea8187 5022 }
3f5285e8 5023
1ad1cdc2
JM		 5024 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5025 if (ret == -ENOENT)
5026 ret = 0;
5027 if (ret)
5028 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; "
5029 "err=%d %s)", ret, strerror(-ret));
5030 return ret;
3f5285e8
JM		 5031
5032nla_put_failure:
5883168a 5033 nlmsg_free(msg);
6241fcb1 5034 return -ENOBUFS;
3f5285e8
JM		 5035}
5036
5037
71934751 5038static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg,
0194fedb
JB		 5039 int key_idx, int defkey,
5040 const u8 *seq, size_t seq_len,
5041 const u8 *key, size_t key_len)
5042{
5043 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY);
5044 if (!key_attr)
5045 return -1;
5046
5047 if (defkey && alg == WPA_ALG_IGTK)
5048 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT);
5049 else if (defkey)
5050 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
5051
5052 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx);
5053
d723bab4
JM		 5054 switch (alg) {
5055 case WPA_ALG_WEP:
5056 if (key_len == 5)
2aa5f847
JM		 5057 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
5058 WLAN_CIPHER_SUITE_WEP40);
d723bab4 5059 else
2aa5f847
JM		 5060 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
5061 WLAN_CIPHER_SUITE_WEP104);
d723bab4
JM		 5062 break;
5063 case WPA_ALG_TKIP:
2aa5f847 5064 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP);
d723bab4
JM		 5065 break;
5066 case WPA_ALG_CCMP:
2aa5f847 5067 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP);
d723bab4 5068 break;
eb7719ff
JM		 5069 case WPA_ALG_GCMP:
5070 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_GCMP);
5071 break;
d723bab4 5072 case WPA_ALG_IGTK:
2aa5f847
JM		 5073 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
5074 WLAN_CIPHER_SUITE_AES_CMAC);
d723bab4
JM		 5075 break;
5076 default:
5077 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
5078 "algorithm %d", __func__, alg);
0194fedb 5079 return -1;
d723bab4 5080 }
0194fedb
JB		 5081
5082 if (seq && seq_len)
5083 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq);
5084
5085 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key);
5086
5087 nla_nest_end(msg, key_attr);
5088
5089 return 0;
5090 nla_put_failure:
5091 return -1;
5092}
5093
c811d5bc 5094
cfaab580
ZY		 5095static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params,
5096 struct nl_msg *msg)
5097{
5098 int i, privacy = 0;
5099 struct nlattr *nl_keys, *nl_key;
5100
5101 for (i = 0; i < 4; i++) {
5102 if (!params->wep_key[i])
5103 continue;
5104 privacy = 1;
5105 break;
5106 }
ce04af5a
JM		 5107 if (params->wps == WPS_MODE_PRIVACY)
5108 privacy = 1;
5109 if (params->pairwise_suite &&
5110 params->pairwise_suite != WPA_CIPHER_NONE)
5111 privacy = 1;
5112
cfaab580
ZY		 5113 if (!privacy)
5114 return 0;
5115
5116 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
5117
5118 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS);
5119 if (!nl_keys)
5120 goto nla_put_failure;
5121
5122 for (i = 0; i < 4; i++) {
5123 if (!params->wep_key[i])
5124 continue;
5125
5126 nl_key = nla_nest_start(msg, i);
5127 if (!nl_key)
5128 goto nla_put_failure;
5129
5130 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i],
5131 params->wep_key[i]);
5132 if (params->wep_key_len[i] == 5)
5133 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
5134 WLAN_CIPHER_SUITE_WEP40);
5135 else
5136 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
5137 WLAN_CIPHER_SUITE_WEP104);
5138
5139 NLA_PUT_U8(msg, NL80211_KEY_IDX, i);
5140
5141 if (i == params->wep_tx_keyidx)
5142 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
5143
5144 nla_nest_end(msg, nl_key);
5145 }
5146 nla_nest_end(msg, nl_keys);
5147
5148 return 0;
5149
5150nla_put_failure:
5151 return -ENOBUFS;
5152}
5153
5154
c2a04078 5155static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
77339912
JM		 5156 const u8 *addr, int cmd, u16 reason_code,
5157 int local_state_change)
c2a04078
JM		 5158{
5159 int ret = -1;
5160 struct nl_msg *msg;
5161
5162 msg = nlmsg_alloc();
5163 if (!msg)
5164 return -1;
5165
9fb04070 5166 nl80211_cmd(drv, msg, 0, cmd);
c2a04078
JM		 5167
5168 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5169 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code);
817762d9
MI		 5170 if (addr)
5171 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
77339912
JM		 5172 if (local_state_change)
5173 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
c2a04078
JM		 5174
5175 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5176 msg = NULL;
5177 if (ret) {
3b7ea880
BG		 5178 wpa_dbg(drv->ctx, MSG_DEBUG,
5179 "nl80211: MLME command failed: reason=%u ret=%d (%s)",
5180 reason_code, ret, strerror(-ret));
c2a04078
JM		 5181 goto nla_put_failure;
5182 }
5183 ret = 0;
5184
5185nla_put_failure:
5186 nlmsg_free(msg);
5187 return ret;
5188}
3f5285e8
JM		 5189
5190
cfaab580 5191static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv,
817762d9 5192 int reason_code)
cfaab580 5193{
817762d9 5194 wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code);
add9b7a4 5195 nl80211_mark_disconnected(drv);
a8c5b43a 5196 drv->ignore_next_local_disconnect = 0;
817762d9
MI		 5197 /* Disconnect command doesn't need BSSID - it uses cached value */
5198 return wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT,
77339912 5199 reason_code, 0);
cfaab580
ZY		 5200}
5201
5202
9ebce9c5
JM		 5203static int wpa_driver_nl80211_deauthenticate(struct i802_bss *bss,
5204 const u8 *addr, int reason_code)
3f5285e8 5205{
a2e40bb6 5206 struct wpa_driver_nl80211_data *drv = bss->drv;
cfaab580 5207 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
817762d9 5208 return wpa_driver_nl80211_disconnect(drv, reason_code);
2e75a2b3
JM		 5209 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)",
5210 __func__, MAC2STR(addr), reason_code);
add9b7a4 5211 nl80211_mark_disconnected(drv);
21bdbe38
JM		 5212 if (drv->nlmode == NL80211_IFTYPE_ADHOC)
5213 return nl80211_leave_ibss(drv);
c2a04078 5214 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE,
77339912 5215 reason_code, 0);
3f5285e8
JM		 5216}
5217
5218
536fd62d
JM		 5219static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv,
5220 struct wpa_driver_auth_params *params)
5221{
5222 int i;
5223
5224 drv->auth_freq = params->freq;
5225 drv->auth_alg = params->auth_alg;
5226 drv->auth_wep_tx_keyidx = params->wep_tx_keyidx;
5227 drv->auth_local_state_change = params->local_state_change;
5228 drv->auth_p2p = params->p2p;
5229
5230 if (params->bssid)
5231 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN);
5232 else
5233 os_memset(drv->auth_bssid_, 0, ETH_ALEN);
5234
5235 if (params->ssid) {
5236 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len);
5237 drv->auth_ssid_len = params->ssid_len;
5238 } else
5239 drv->auth_ssid_len = 0;
5240
5241
5242 os_free(drv->auth_ie);
5243 drv->auth_ie = NULL;
5244 drv->auth_ie_len = 0;
5245 if (params->ie) {
5246 drv->auth_ie = os_malloc(params->ie_len);
5247 if (drv->auth_ie) {
5248 os_memcpy(drv->auth_ie, params->ie, params->ie_len);
5249 drv->auth_ie_len = params->ie_len;
5250 }
5251 }
5252
5253 for (i = 0; i < 4; i++) {
5254 if (params->wep_key[i] && params->wep_key_len[i] &&
5255 params->wep_key_len[i] <= 16) {
5256 os_memcpy(drv->auth_wep_key[i], params->wep_key[i],
5257 params->wep_key_len[i]);
5258 drv->auth_wep_key_len[i] = params->wep_key_len[i];
5259 } else
5260 drv->auth_wep_key_len[i] = 0;
5261 }
5262}
5263
5264
c2a04078 5265static int wpa_driver_nl80211_authenticate(
9ebce9c5 5266 struct i802_bss *bss, struct wpa_driver_auth_params *params)
c2a04078 5267{
a2e40bb6 5268 struct wpa_driver_nl80211_data *drv = bss->drv;
a0b2f99b 5269 int ret = -1, i;
c2a04078
JM		 5270 struct nl_msg *msg;
5271 enum nl80211_auth_type type;
2f4f73b1 5272 enum nl80211_iftype nlmode;
6d6f4bb8 5273 int count = 0;
536fd62d
JM		 5274 int is_retry;
5275
5276 is_retry = drv->retry_auth;
5277 drv->retry_auth = 0;
c2a04078 5278
add9b7a4 5279 nl80211_mark_disconnected(drv);
e6b8efeb 5280 os_memset(drv->auth_bssid, 0, ETH_ALEN);
add9b7a4
JM		 5281 if (params->bssid)
5282 os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN);
5283 else
5284 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN);
af473088 5285 /* FIX: IBSS mode */
2f4f73b1
EP		 5286 nlmode = params->p2p ?
5287 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
5288 if (drv->nlmode != nlmode &&
9ebce9c5 5289 wpa_driver_nl80211_set_mode(bss, nlmode) < 0)
4a867032
JM		 5290 return -1;
5291
6d6f4bb8 5292retry:
c2a04078
JM		 5293 msg = nlmsg_alloc();
5294 if (!msg)
5295 return -1;
5296
5297 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)",
5298 drv->ifindex);
a0b2f99b 5299
9fb04070 5300 nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE);
0194fedb 5301
a0b2f99b
JM		 5302 for (i = 0; i < 4; i++) {
5303 if (!params->wep_key[i])
5304 continue;
9ebce9c5 5305 wpa_driver_nl80211_set_key(bss->ifname, bss, WPA_ALG_WEP,
2ea2fcc7 5306 NULL, i,
a0b2f99b
JM		 5307 i == params->wep_tx_keyidx, NULL, 0,
5308 params->wep_key[i],
5309 params->wep_key_len[i]);
0194fedb
JB		 5310 if (params->wep_tx_keyidx != i)
5311 continue;
5312 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0,
5313 params->wep_key[i], params->wep_key_len[i])) {
5314 nlmsg_free(msg);
5315 return -1;
5316 }
a0b2f99b
JM		 5317 }
5318
c2a04078
JM		 5319 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5320 if (params->bssid) {
5321 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
5322 MAC2STR(params->bssid));
5323 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
5324 }
5325 if (params->freq) {
5326 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
5327 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
5328 }
5329 if (params->ssid) {
5330 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
5331 params->ssid, params->ssid_len);
5332 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
5333 params->ssid);
5334 }
5335 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len);
5336 if (params->ie)
5337 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie);
569fed90
JM		 5338 if (params->sae_data) {
5339 wpa_hexdump(MSG_DEBUG, " * SAE data", params->sae_data,
5340 params->sae_data_len);
5341 NLA_PUT(msg, NL80211_ATTR_SAE_DATA, params->sae_data_len,
5342 params->sae_data);
5343 }
abd9fafa 5344 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
c2a04078 5345 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
abd9fafa 5346 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
c2a04078 5347 type = NL80211_AUTHTYPE_SHARED_KEY;
abd9fafa 5348 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
c2a04078 5349 type = NL80211_AUTHTYPE_NETWORK_EAP;
abd9fafa 5350 else if (params->auth_alg & WPA_AUTH_ALG_FT)
c2a04078 5351 type = NL80211_AUTHTYPE_FT;
569fed90
JM		 5352 else if (params->auth_alg & WPA_AUTH_ALG_SAE)
5353 type = NL80211_AUTHTYPE_SAE;
c2a04078
JM		 5354 else
5355 goto nla_put_failure;
5356 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
5357 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
77339912
JM		 5358 if (params->local_state_change) {
5359 wpa_printf(MSG_DEBUG, " * Local state change only");
5360 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
5361 }
c2a04078
JM		 5362
5363 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5364 msg = NULL;
5365 if (ret) {
3b7ea880
BG		 5366 wpa_dbg(drv->ctx, MSG_DEBUG,
5367 "nl80211: MLME command failed (auth): ret=%d (%s)",
5368 ret, strerror(-ret));
6d6f4bb8 5369 count++;
77339912
JM		 5370 if (ret == -EALREADY && count == 1 && params->bssid &&
5371 !params->local_state_change) {
6d6f4bb8
JM		 5372 /*
5373 * mac80211 does not currently accept new
5374 * authentication if we are already authenticated. As a
5375 * workaround, force deauthentication and try again.
5376 */
5377 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication "
5378 "after forced deauthentication");
5379 wpa_driver_nl80211_deauthenticate(
5205c4f9 5380 bss, params->bssid,
6d6f4bb8
JM		 5381 WLAN_REASON_PREV_AUTH_NOT_VALID);
5382 nlmsg_free(msg);
5383 goto retry;
5384 }
536fd62d
JM		 5385
5386 if (ret == -ENOENT && params->freq && !is_retry) {
5387 /*
5388 * cfg80211 has likely expired the BSS entry even
5389 * though it was previously available in our internal
5390 * BSS table. To recover quickly, start a single
5391 * channel scan on the specified channel.
5392 */
5393 struct wpa_driver_scan_params scan;
5394 int freqs[2];
5395
5396 os_memset(&scan, 0, sizeof(scan));
5397 scan.num_ssids = 1;
5398 if (params->ssid) {
5399 scan.ssids[0].ssid = params->ssid;
5400 scan.ssids[0].ssid_len = params->ssid_len;
5401 }
5402 freqs[0] = params->freq;
5403 freqs[1] = 0;
5404 scan.freqs = freqs;
5405 wpa_printf(MSG_DEBUG, "nl80211: Trigger single "
5406 "channel scan to refresh cfg80211 BSS "
5407 "entry");
5408 ret = wpa_driver_nl80211_scan(bss, &scan);
5409 if (ret == 0) {
5410 nl80211_copy_auth_params(drv, params);
5411 drv->scan_for_auth = 1;
5412 }
8c3ba078
JM		 5413 } else if (is_retry) {
5414 /*
5415 * Need to indicate this with an event since the return
5416 * value from the retry is not delivered to core code.
5417 */
5418 union wpa_event_data event;
5419 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry "
5420 "failed");
5421 os_memset(&event, 0, sizeof(event));
5422 os_memcpy(event.timeout_event.addr, drv->auth_bssid_,
5423 ETH_ALEN);
5424 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT,
5425 &event);
536fd62d
JM		 5426 }
5427
c2a04078
JM		 5428 goto nla_put_failure;
5429 }
5430 ret = 0;
5431 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send "
5432 "successfully");
5433
5434nla_put_failure:
5435 nlmsg_free(msg);
5436 return ret;
5437}
5438
5439
536fd62d
JM		 5440static int wpa_driver_nl80211_authenticate_retry(
5441 struct wpa_driver_nl80211_data *drv)
5442{
5443 struct wpa_driver_auth_params params;
5444 struct i802_bss *bss = &drv->first_bss;
5445 int i;
5446
5447 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again");
5448
5449 os_memset(&params, 0, sizeof(params));
5450 params.freq = drv->auth_freq;
5451 params.auth_alg = drv->auth_alg;
5452 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx;
5453 params.local_state_change = drv->auth_local_state_change;
5454 params.p2p = drv->auth_p2p;
5455
5456 if (!is_zero_ether_addr(drv->auth_bssid_))
5457 params.bssid = drv->auth_bssid_;
5458
5459 if (drv->auth_ssid_len) {
5460 params.ssid = drv->auth_ssid;
5461 params.ssid_len = drv->auth_ssid_len;
5462 }
5463
5464 params.ie = drv->auth_ie;
5465 params.ie_len = drv->auth_ie_len;
5466
5467 for (i = 0; i < 4; i++) {
5468 if (drv->auth_wep_key_len[i]) {
5469 params.wep_key[i] = drv->auth_wep_key[i];
5470 params.wep_key_len[i] = drv->auth_wep_key_len[i];
5471 }
5472 }
5473
5474 drv->retry_auth = 1;
5475 return wpa_driver_nl80211_authenticate(bss, &params);
5476}
5477
5478
282d5590
JM		 5479struct phy_info_arg {
5480 u16 *num_modes;
5481 struct hostapd_hw_modes *modes;
43245552 5482 int last_mode, last_chan_idx;
282d5590
JM		 5483};
5484
e62a1d43
JM		 5485static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa,
5486 struct nlattr *ampdu_factor,
5487 struct nlattr *ampdu_density,
5488 struct nlattr *mcs_set)
5489{
5490 if (capa)
5491 mode->ht_capab = nla_get_u16(capa);
5492
5493 if (ampdu_factor)
5494 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03;
5495
5496 if (ampdu_density)
5497 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2;
5498
5499 if (mcs_set && nla_len(mcs_set) >= 16) {
5500 u8 *mcs;
5501 mcs = nla_data(mcs_set);
5502 os_memcpy(mode->mcs_set, mcs, 16);
5503 }
5504}
5505
5506
5507static void phy_info_vht_capa(struct hostapd_hw_modes *mode,
5508 struct nlattr *capa,
5509 struct nlattr *mcs_set)
5510{
5511 if (capa)
5512 mode->vht_capab = nla_get_u32(capa);
5513
5514 if (mcs_set && nla_len(mcs_set) >= 8) {
5515 u8 *mcs;
5516 mcs = nla_data(mcs_set);
5517 os_memcpy(mode->vht_mcs_set, mcs, 8);
5518 }
5519}
5520
5521
214a77b0
JM		 5522static void phy_info_freq(struct hostapd_hw_modes *mode,
5523 struct hostapd_channel_data *chan,
5524 struct nlattr *tb_freq[])
5525{
e864c0ae 5526 u8 channel;
214a77b0
JM		 5527 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
5528 chan->flag = 0;
e864c0ae
JM		 5529 if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES)
5530 chan->chan = channel;
214a77b0
JM		 5531
5532 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
5533 chan->flag |= HOSTAPD_CHAN_DISABLED;
5534 if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
5535 chan->flag |= HOSTAPD_CHAN_PASSIVE_SCAN;
5536 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS])
5537 chan->flag |= HOSTAPD_CHAN_NO_IBSS;
5538 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
5539 chan->flag |= HOSTAPD_CHAN_RADAR;
5540
5541 if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] &&
5542 !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
5543 chan->max_tx_power = nla_get_u32(
5544 tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100;
fc96522e
SW		 5545 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) {
5546 enum nl80211_dfs_state state =
5547 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]);
5548
5549 switch (state) {
5550 case NL80211_DFS_USABLE:
5551 chan->flag |= HOSTAPD_CHAN_DFS_USABLE;
5552 break;
5553 case NL80211_DFS_AVAILABLE:
5554 chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE;
5555 break;
5556 case NL80211_DFS_UNAVAILABLE:
5557 chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE;
5558 break;
5559 }
5560 }
214a77b0
JM		 5561}
5562
5563
e62a1d43
JM		 5564static int phy_info_freqs(struct phy_info_arg *phy_info,
5565 struct hostapd_hw_modes *mode, struct nlattr *tb)
282d5590 5566{
282d5590
JM		 5567 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
5568 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
5569 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
5570 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG },
5571 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG },
5572 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
5573 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
fc96522e 5574 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 },
282d5590 5575 };
e62a1d43
JM		 5576 int new_channels = 0;
5577 struct hostapd_channel_data *channel;
5578 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
5579 struct nlattr *nl_freq;
5580 int rem_freq, idx;
5581
5582 if (tb == NULL)
5583 return NL_OK;
5584
5585 nla_for_each_nested(nl_freq, tb, rem_freq) {
5586 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX,
5587 nla_data(nl_freq), nla_len(nl_freq), freq_policy);
5588 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
5589 continue;
5590 new_channels++;
5591 }
5592
5593 channel = os_realloc_array(mode->channels,
5594 mode->num_channels + new_channels,
5595 sizeof(struct hostapd_channel_data));
5596 if (!channel)
5597 return NL_SKIP;
5598
5599 mode->channels = channel;
5600 mode->num_channels += new_channels;
5601
5602 idx = phy_info->last_chan_idx;
5603
5604 nla_for_each_nested(nl_freq, tb, rem_freq) {
5605 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX,
5606 nla_data(nl_freq), nla_len(nl_freq), freq_policy);
5607 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
5608 continue;
214a77b0 5609 phy_info_freq(mode, &mode->channels[idx], tb_freq);
e62a1d43
JM		 5610 idx++;
5611 }
5612 phy_info->last_chan_idx = idx;
5613
5614 return NL_OK;
5615}
5616
5617
5618static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb)
5619{
282d5590
JM		 5620 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
5621 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
3cfcad1b
JM		 5622 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] =
5623 { .type = NLA_FLAG },
282d5590 5624 };
e62a1d43 5625 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
282d5590 5626 struct nlattr *nl_rate;
e62a1d43
JM		 5627 int rem_rate, idx;
5628
5629 if (tb == NULL)
5630 return NL_OK;
5631
5632 nla_for_each_nested(nl_rate, tb, rem_rate) {
5633 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX,
5634 nla_data(nl_rate), nla_len(nl_rate),
5635 rate_policy);
5636 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
5637 continue;
5638 mode->num_rates++;
5639 }
5640
5641 mode->rates = os_calloc(mode->num_rates, sizeof(int));
5642 if (!mode->rates)
5643 return NL_SKIP;
5644
5645 idx = 0;
5646
5647 nla_for_each_nested(nl_rate, tb, rem_rate) {
5648 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX,
5649 nla_data(nl_rate), nla_len(nl_rate),
5650 rate_policy);
5651 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
5652 continue;
5653 mode->rates[idx] = nla_get_u32(
5654 tb_rate[NL80211_BITRATE_ATTR_RATE]);
e62a1d43
JM		 5655 idx++;
5656 }
5657
5658 return NL_OK;
5659}
5660
5661
5662static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band)
5663{
5664 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
282d5590 5665 struct hostapd_hw_modes *mode;
e62a1d43 5666 int ret;
282d5590 5667
3cfcad1b
JM		 5668 if (phy_info->last_mode != nl_band->nla_type) {
5669 mode = os_realloc_array(phy_info->modes,
5670 *phy_info->num_modes + 1,
5671 sizeof(*mode));
5672 if (!mode)
5673 return NL_SKIP;
5674 phy_info->modes = mode;
5675
5676 mode = &phy_info->modes[*(phy_info->num_modes)];
5677 os_memset(mode, 0, sizeof(*mode));
5678 mode->mode = NUM_HOSTAPD_MODES;
5679 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN;
5680 *(phy_info->num_modes) += 1;
5681 phy_info->last_mode = nl_band->nla_type;
5682 phy_info->last_chan_idx = 0;
5683 } else
5684 mode = &phy_info->modes[*(phy_info->num_modes) - 1];
282d5590 5685
3cfcad1b
JM		 5686 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
5687 nla_len(nl_band), NULL);
282d5590 5688
e62a1d43
JM		 5689 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA],
5690 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR],
5691 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY],
5692 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]);
5693 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA],
5694 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]);
5695 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]);
5696 if (ret != NL_OK)
5697 return ret;
5698 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]);
5699 if (ret != NL_OK)
5700 return ret;
282d5590 5701
3cfcad1b
JM		 5702 return NL_OK;
5703}
5704
5705
5706static int phy_info_handler(struct nl_msg *msg, void *arg)
5707{
5708 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
5709 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
5710 struct phy_info_arg *phy_info = arg;
5711 struct nlattr *nl_band;
5712 int rem_band;
5713
5714 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
5715 genlmsg_attrlen(gnlh, 0), NULL);
5716
5717 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
5718 return NL_SKIP;
5719
5720 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band)
5721 {
5722 int res = phy_info_band(phy_info, nl_band);
5723 if (res != NL_OK)
5724 return res;
5725 }
5726
282d5590
JM		 5727 return NL_SKIP;
5728}
5729
3cfcad1b 5730
282d5590 5731static struct hostapd_hw_modes *
c30a4ab0
JB		 5732wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes,
5733 u16 *num_modes)
282d5590
JM		 5734{
5735 u16 m;
5736 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
5737 int i, mode11g_idx = -1;
5738
c30a4ab0
JB		 5739 /* heuristic to set up modes */
5740 for (m = 0; m < *num_modes; m++) {
5741 if (!modes[m].num_channels)
5742 continue;
5743 if (modes[m].channels[0].freq < 4000) {
5744 modes[m].mode = HOSTAPD_MODE_IEEE80211B;
5745 for (i = 0; i < modes[m].num_rates; i++) {
5746 if (modes[m].rates[i] > 200) {
5747 modes[m].mode = HOSTAPD_MODE_IEEE80211G;
5748 break;
5749 }
5750 }
5751 } else if (modes[m].channels[0].freq > 50000)
5752 modes[m].mode = HOSTAPD_MODE_IEEE80211AD;
5753 else
5754 modes[m].mode = HOSTAPD_MODE_IEEE80211A;
5755 }
5756
282d5590
JM		 5757 /* If only 802.11g mode is included, use it to construct matching
5758 * 802.11b mode data. */
5759
5760 for (m = 0; m < *num_modes; m++) {
5761 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
5762 return modes; /* 802.11b already included */
5763 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
5764 mode11g_idx = m;
5765 }
5766
5767 if (mode11g_idx < 0)
5768 return modes; /* 2.4 GHz band not supported at all */
5769
067ffa26 5770 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes));
282d5590
JM		 5771 if (nmodes == NULL)
5772 return modes; /* Could not add 802.11b mode */
5773
5774 mode = &nmodes[*num_modes];
5775 os_memset(mode, 0, sizeof(*mode));
5776 (*num_modes)++;
5777 modes = nmodes;
5778
5779 mode->mode = HOSTAPD_MODE_IEEE80211B;
5780
5781 mode11g = &modes[mode11g_idx];
5782 mode->num_channels = mode11g->num_channels;
5783 mode->channels = os_malloc(mode11g->num_channels *
5784 sizeof(struct hostapd_channel_data));
5785 if (mode->channels == NULL) {
5786 (*num_modes)--;
5787 return modes; /* Could not add 802.11b mode */
5788 }
5789 os_memcpy(mode->channels, mode11g->channels,
5790 mode11g->num_channels * sizeof(struct hostapd_channel_data));
5791
5792 mode->num_rates = 0;
fb7842aa 5793 mode->rates = os_malloc(4 * sizeof(int));
282d5590
JM		 5794 if (mode->rates == NULL) {
5795 os_free(mode->channels);
5796 (*num_modes)--;
5797 return modes; /* Could not add 802.11b mode */
5798 }
5799
5800 for (i = 0; i < mode11g->num_rates; i++) {
fb7842aa
JM		 5801 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 &&
5802 mode11g->rates[i] != 55 && mode11g->rates[i] != 110)
282d5590
JM		 5803 continue;
5804 mode->rates[mode->num_rates] = mode11g->rates[i];
5805 mode->num_rates++;
5806 if (mode->num_rates == 4)
5807 break;
5808 }
5809
5810 if (mode->num_rates == 0) {
5811 os_free(mode->channels);
5812 os_free(mode->rates);
5813 (*num_modes)--;
5814 return modes; /* No 802.11b rates */
5815 }
5816
5817 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
5818 "information");
5819
5820 return modes;
5821}
5822
5823
d8e66e80
JM		 5824static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start,
5825 int end)
5826{
5827 int c;
5828
5829 for (c = 0; c < mode->num_channels; c++) {
5830 struct hostapd_channel_data *chan = &mode->channels[c];
5831 if (chan->freq - 10 >= start && chan->freq + 10 <= end)
5832 chan->flag |= HOSTAPD_CHAN_HT40;
5833 }
5834}
5835
5836
5837static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start,
5838 int end)
5839{
5840 int c;
5841
5842 for (c = 0; c < mode->num_channels; c++) {
5843 struct hostapd_channel_data *chan = &mode->channels[c];
5844 if (!(chan->flag & HOSTAPD_CHAN_HT40))
5845 continue;
5846 if (chan->freq - 30 >= start && chan->freq - 10 <= end)
5847 chan->flag |= HOSTAPD_CHAN_HT40MINUS;
5848 if (chan->freq + 10 >= start && chan->freq + 30 <= end)
5849 chan->flag |= HOSTAPD_CHAN_HT40PLUS;
5850 }
5851}
5852
5853
5854static void nl80211_reg_rule_ht40(struct nlattr *tb[],
5855 struct phy_info_arg *results)
5856{
5857 u32 start, end, max_bw;
5858 u16 m;
5859
5860 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
5861 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
5862 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
5863 return;
5864
5865 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
5866 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
5867 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
5868
5869 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz",
5870 start, end, max_bw);
5871 if (max_bw < 40)
5872 return;
5873
5874 for (m = 0; m < *results->num_modes; m++) {
5875 if (!(results->modes[m].ht_capab &
5876 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
5877 continue;
5878 nl80211_set_ht40_mode(&results->modes[m], start, end);
5879 }
5880}
5881
5882
5883static void nl80211_reg_rule_sec(struct nlattr *tb[],
5884 struct phy_info_arg *results)
5885{
5886 u32 start, end, max_bw;
5887 u16 m;
5888
5889 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
5890 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
5891 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
5892 return;
5893
5894 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
5895 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
5896 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
5897
5898 if (max_bw < 20)
5899 return;
5900
5901 for (m = 0; m < *results->num_modes; m++) {
5902 if (!(results->modes[m].ht_capab &
5903 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
5904 continue;
5905 nl80211_set_ht40_mode_sec(&results->modes[m], start, end);
5906 }
5907}
5908
5909
5910static int nl80211_get_reg(struct nl_msg *msg, void *arg)
5911{
5912 struct phy_info_arg *results = arg;
5913 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
5914 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
5915 struct nlattr *nl_rule;
5916 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1];
5917 int rem_rule;
5918 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
5919 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
5920 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
5921 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
5922 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
5923 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
5924 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
5925 };
5926
5927 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
5928 genlmsg_attrlen(gnlh, 0), NULL);
5929 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] ||
5930 !tb_msg[NL80211_ATTR_REG_RULES]) {
5931 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information "
5932 "available");
5933 return NL_SKIP;
5934 }
5935
5936 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s",
5937 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]));
5938
5939 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
5940 {
5941 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
5942 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
5943 nl80211_reg_rule_ht40(tb_rule, results);
5944 }
5945
5946 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
5947 {
5948 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
5949 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
5950 nl80211_reg_rule_sec(tb_rule, results);
5951 }
5952
5953 return NL_SKIP;
5954}
5955
5956
5957static int nl80211_set_ht40_flags(struct wpa_driver_nl80211_data *drv,
5958 struct phy_info_arg *results)
5959{
5960 struct nl_msg *msg;
5961
5962 msg = nlmsg_alloc();
5963 if (!msg)
5964 return -ENOMEM;
5965
9fb04070 5966 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG);
d8e66e80
JM		 5967 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results);
5968}
5969
5970
282d5590
JM		 5971static struct hostapd_hw_modes *
5972wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
5973{
43245552 5974 u32 feat;
a2e40bb6
FF		 5975 struct i802_bss *bss = priv;
5976 struct wpa_driver_nl80211_data *drv = bss->drv;
282d5590
JM		 5977 struct nl_msg *msg;
5978 struct phy_info_arg result = {
5979 .num_modes = num_modes,
5980 .modes = NULL,
43245552 5981 .last_mode = -1,
282d5590
JM		 5982 };
5983
5984 *num_modes = 0;
5985 *flags = 0;
5986
5987 msg = nlmsg_alloc();
5988 if (!msg)
5989 return NULL;
5990
43245552
DJ		 5991 feat = get_nl80211_protocol_features(drv);
5992 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)
5993 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY);
5994 else
5995 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY);
282d5590 5996
43245552 5997 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP);
282d5590
JM		 5998 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5999
d8e66e80
JM		 6000 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) {
6001 nl80211_set_ht40_flags(drv, &result);
c30a4ab0
JB		 6002 return wpa_driver_nl80211_postprocess_modes(result.modes,
6003 num_modes);
d8e66e80 6004 }
5883168a 6005 msg = NULL;
282d5590 6006 nla_put_failure:
5883168a 6007 nlmsg_free(msg);
282d5590
JM		 6008 return NULL;
6009}
6010
6011
a11241fa
JB		 6012static int wpa_driver_nl80211_send_mntr(struct wpa_driver_nl80211_data *drv,
6013 const void *data, size_t len,
6014 int encrypt, int noack)
2c2010ac
JM		 6015{
6016 __u8 rtap_hdr[] = {
6017 0x00, 0x00, /* radiotap version */
6018 0x0e, 0x00, /* radiotap length */
6019 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */
6020 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */
6021 0x00, /* padding */
6022 0x00, 0x00, /* RX and TX flags to indicate that */
6023 0x00, 0x00, /* this is the injected frame directly */
6024 };
6025 struct iovec iov[2] = {
6026 {
6027 .iov_base = &rtap_hdr,
6028 .iov_len = sizeof(rtap_hdr),
6029 },
6030 {
6031 .iov_base = (void *) data,
6032 .iov_len = len,
6033 }
6034 };
6035 struct msghdr msg = {
6036 .msg_name = NULL,
6037 .msg_namelen = 0,
6038 .msg_iov = iov,
6039 .msg_iovlen = 2,
6040 .msg_control = NULL,
6041 .msg_controllen = 0,
6042 .msg_flags = 0,
6043 };
ebbec8b2 6044 int res;
fab25336 6045 u16 txflags = 0;
2c2010ac
JM		 6046
6047 if (encrypt)
6048 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP;
6049
866af8b6
JM		 6050 if (drv->monitor_sock < 0) {
6051 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available "
6052 "for %s", __func__);
6053 return -1;
6054 }
6055
fab25336
HS		 6056 if (noack)
6057 txflags |= IEEE80211_RADIOTAP_F_TX_NOACK;
9d7a63dc 6058 WPA_PUT_LE16(&rtap_hdr[12], txflags);
fab25336 6059
ebbec8b2
JM		 6060 res = sendmsg(drv->monitor_sock, &msg, 0);
6061 if (res < 0) {
6062 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno));
6063 return -1;
6064 }
6065 return 0;
2c2010ac
JM		 6066}
6067
6068
a11241fa
JB		 6069static int wpa_driver_nl80211_send_frame(struct i802_bss *bss,
6070 const void *data, size_t len,
55231068
JM		 6071 int encrypt, int noack,
6072 unsigned int freq, int no_cck,
6073 int offchanok, unsigned int wait_time)
a11241fa
JB		 6074{
6075 struct wpa_driver_nl80211_data *drv = bss->drv;
6076 u64 cookie;
6077
55231068
JM		 6078 if (freq == 0)
6079 freq = bss->freq;
6080
a11241fa
JB		 6081 if (drv->use_monitor)
6082 return wpa_driver_nl80211_send_mntr(drv, data, len,
6083 encrypt, noack);
6084
55231068
JM		 6085 return nl80211_send_frame_cmd(bss, freq, wait_time, data, len,
6086 &cookie, no_cck, noack, offchanok);
a11241fa
JB		 6087}
6088
6089
9ebce9c5
JM		 6090static int wpa_driver_nl80211_send_mlme(struct i802_bss *bss, const u8 *data,
6091 size_t data_len, int noack,
6092 unsigned int freq, int no_cck,
6093 int offchanok,
6094 unsigned int wait_time)
2c2010ac 6095{
a2e40bb6 6096 struct wpa_driver_nl80211_data *drv = bss->drv;
2c2010ac 6097 struct ieee80211_mgmt *mgmt;
7a47d567 6098 int encrypt = 1;
2c2010ac
JM		 6099 u16 fc;
6100
6101 mgmt = (struct ieee80211_mgmt *) data;
6102 fc = le_to_host16(mgmt->frame_control);
6103
8e12685c
AS		 6104 if ((is_sta_interface(drv->nlmode) ||
6105 drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) &&
5582a5d1
JB		 6106 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
6107 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) {
6108 /*
6109 * The use of last_mgmt_freq is a bit of a hack,
6110 * but it works due to the single-threaded nature
6111 * of wpa_supplicant.
6112 */
55231068
JM		 6113 if (freq == 0)
6114 freq = drv->last_mgmt_freq;
6115 return nl80211_send_frame_cmd(bss, freq, 0,
88df0ef7
JB		 6116 data, data_len, NULL, 1, noack,
6117 1);
5582a5d1
JB		 6118 }
6119
61cbe2ff 6120 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) {
55231068
JM		 6121 if (freq == 0)
6122 freq = bss->freq;
b5671498
JM		 6123 return nl80211_send_frame_cmd(bss, freq,
6124 (int) freq == bss->freq ? 0 :
6125 wait_time,
d8d6b32e
DG		 6126 data, data_len,
6127 &drv->send_action_cookie,
55231068 6128 no_cck, noack, offchanok);
86957e62
JM		 6129 }
6130
2c2010ac
JM		 6131 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
6132 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) {
6133 /*
6134 * Only one of the authentication frame types is encrypted.
6135 * In order for static WEP encryption to work properly (i.e.,
6136 * to not encrypt the frame), we need to tell mac80211 about
6137 * the frames that must not be encrypted.
6138 */
6139 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
6140 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction);
7a47d567
JB		 6141 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3)
6142 encrypt = 0;
2c2010ac
JM		 6143 }
6144
a11241fa 6145 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt,
55231068
JM		 6146 noack, freq, no_cck, offchanok,
6147 wait_time);
6148}
6149
6150
31357268 6151static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble,
e5693c47
JM		 6152 int slot, int ht_opmode, int ap_isolate,
6153 int *basic_rates)
31357268
JM		 6154{
6155 struct wpa_driver_nl80211_data *drv = bss->drv;
6156 struct nl_msg *msg;
6157
6158 msg = nlmsg_alloc();
6159 if (!msg)
6160 return -ENOMEM;
6161
9fb04070 6162 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS);
31357268
JM		 6163
6164 if (cts >= 0)
6165 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts);
6166 if (preamble >= 0)
6167 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble);
6168 if (slot >= 0)
6169 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot);
6170 if (ht_opmode >= 0)
6171 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode);
d03e8d11
JM		 6172 if (ap_isolate >= 0)
6173 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate);
e5693c47
JM		 6174
6175 if (basic_rates) {
6176 u8 rates[NL80211_MAX_SUPP_RATES];
6177 u8 rates_len = 0;
6178 int i;
6179
6180 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0;
6181 i++)
6182 rates[rates_len++] = basic_rates[i] / 5;
6183
6184 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates);
6185 }
6186
31357268
JM		 6187 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
6188
6189 return send_and_recv_msgs(drv, msg, NULL, NULL);
6190 nla_put_failure:
5883168a 6191 nlmsg_free(msg);
31357268
JM		 6192 return -ENOBUFS;
6193}
6194
6195
3c4ca363
VN		 6196static int wpa_driver_nl80211_set_acl(void *priv,
6197 struct hostapd_acl_params *params)
6198{
6199 struct i802_bss *bss = priv;
6200 struct wpa_driver_nl80211_data *drv = bss->drv;
6201 struct nl_msg *msg;
6202 struct nlattr *acl;
6203 unsigned int i;
6204 int ret = 0;
6205
6206 if (!(drv->capa.max_acl_mac_addrs))
6207 return -ENOTSUP;
6208
6209 if (params->num_mac_acl > drv->capa.max_acl_mac_addrs)
6210 return -ENOTSUP;
6211
6212 msg = nlmsg_alloc();
6213 if (!msg)
6214 return -ENOMEM;
6215
6216 wpa_printf(MSG_DEBUG, "nl80211: Set %s ACL (num_mac_acl=%u)",
6217 params->acl_policy ? "Accept" : "Deny", params->num_mac_acl);
6218
6219 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_MAC_ACL);
6220
6221 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6222
6223 NLA_PUT_U32(msg, NL80211_ATTR_ACL_POLICY, params->acl_policy ?
6224 NL80211_ACL_POLICY_DENY_UNLESS_LISTED :
6225 NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED);
6226
6227 acl = nla_nest_start(msg, NL80211_ATTR_MAC_ADDRS);
6228 if (acl == NULL)
6229 goto nla_put_failure;
6230
6231 for (i = 0; i < params->num_mac_acl; i++)
6232 NLA_PUT(msg, i + 1, ETH_ALEN, params->mac_acl[i].addr);
6233
6234 nla_nest_end(msg, acl);
6235
6236 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6237 msg = NULL;
6238 if (ret) {
6239 wpa_printf(MSG_DEBUG, "nl80211: Failed to set MAC ACL: %d (%s)",
6240 ret, strerror(-ret));
6241 }
6242
6243nla_put_failure:
6244 nlmsg_free(msg);
6245
6246 return ret;
6247}
6248
6249
19c3b566
JM		 6250static int wpa_driver_nl80211_set_ap(void *priv,
6251 struct wpa_driver_ap_params *params)
d2440ba0 6252{
a2e40bb6
FF		 6253 struct i802_bss *bss = priv;
6254 struct wpa_driver_nl80211_data *drv = bss->drv;
d2440ba0
JM		 6255 struct nl_msg *msg;
6256 u8 cmd = NL80211_CMD_NEW_BEACON;
6257 int ret;
b4fd6fab 6258 int beacon_set;
8b897f5a 6259 int ifindex = if_nametoindex(bss->ifname);
b11d1d64
JM		 6260 int num_suites;
6261 u32 suites[10];
6262 u32 ver;
b4fd6fab 6263
b4fd6fab 6264 beacon_set = bss->beacon_set;
d2440ba0
JM		 6265
6266 msg = nlmsg_alloc();
6267 if (!msg)
6268 return -ENOMEM;
6269
6270 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)",
b4fd6fab
JM		 6271 beacon_set);
6272 if (beacon_set)
d2440ba0
JM		 6273 cmd = NL80211_CMD_SET_BEACON;
6274
9fb04070 6275 nl80211_cmd(drv, msg, 0, cmd);
b92e08fc
JM		 6276 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon head",
6277 params->head, params->head_len);
19c3b566 6278 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head);
b92e08fc
JM		 6279 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon tail",
6280 params->tail, params->tail_len);
19c3b566 6281 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail);
b92e08fc 6282 wpa_printf(MSG_DEBUG, "nl80211: ifindex=%d", ifindex);
b4fd6fab 6283 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
b92e08fc 6284 wpa_printf(MSG_DEBUG, "nl80211: beacon_int=%d", params->beacon_int);
19c3b566 6285 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int);
b92e08fc 6286 wpa_printf(MSG_DEBUG, "nl80211: dtim_period=%d", params->dtim_period);
19c3b566 6287 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period);
b92e08fc
JM		 6288 wpa_hexdump_ascii(MSG_DEBUG, "nl80211: ssid",
6289 params->ssid, params->ssid_len);
ccb941e6
JM		 6290 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
6291 params->ssid);
b92e08fc
JM		 6292 if (params->proberesp && params->proberesp_len) {
6293 wpa_hexdump(MSG_DEBUG, "nl80211: proberesp (offload)",
6294 params->proberesp, params->proberesp_len);
5ed33546
AN		 6295 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len,
6296 params->proberesp);
b92e08fc 6297 }
97a7a0b5
JM		 6298 switch (params->hide_ssid) {
6299 case NO_SSID_HIDING:
b92e08fc 6300 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID not in use");
97a7a0b5
JM		 6301 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
6302 NL80211_HIDDEN_SSID_NOT_IN_USE);
6303 break;
6304 case HIDDEN_SSID_ZERO_LEN:
b92e08fc 6305 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero len");
97a7a0b5
JM		 6306 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
6307 NL80211_HIDDEN_SSID_ZERO_LEN);
6308 break;
6309 case HIDDEN_SSID_ZERO_CONTENTS:
b92e08fc 6310 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero contents");
97a7a0b5
JM		 6311 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
6312 NL80211_HIDDEN_SSID_ZERO_CONTENTS);
6313 break;
6314 }
b92e08fc 6315 wpa_printf(MSG_DEBUG, "nl80211: privacy=%d", params->privacy);
b11d1d64
JM		 6316 if (params->privacy)
6317 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
b92e08fc 6318 wpa_printf(MSG_DEBUG, "nl80211: auth_algs=0x%x", params->auth_algs);
b11d1d64
JM		 6319 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) ==
6320 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) {
6321 /* Leave out the attribute */
6322 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED)
6323 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE,
6324 NL80211_AUTHTYPE_SHARED_KEY);
6325 else
6326 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE,
6327 NL80211_AUTHTYPE_OPEN_SYSTEM);
6328
b92e08fc 6329 wpa_printf(MSG_DEBUG, "nl80211: wpa_version=0x%x", params->wpa_version);
b11d1d64
JM		 6330 ver = 0;
6331 if (params->wpa_version & WPA_PROTO_WPA)
6332 ver |= NL80211_WPA_VERSION_1;
6333 if (params->wpa_version & WPA_PROTO_RSN)
6334 ver |= NL80211_WPA_VERSION_2;
6335 if (ver)
6336 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
6337
b92e08fc
JM		 6338 wpa_printf(MSG_DEBUG, "nl80211: key_mgmt_suites=0x%x",
6339 params->key_mgmt_suites);
b11d1d64
JM		 6340 num_suites = 0;
6341 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X)
6342 suites[num_suites++] = WLAN_AKM_SUITE_8021X;
6343 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK)
6344 suites[num_suites++] = WLAN_AKM_SUITE_PSK;
6345 if (num_suites) {
6346 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES,
6347 num_suites * sizeof(u32), suites);
6348 }
6349
9f12614b
JB		 6350 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X &&
6351 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40))
6352 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT);
6353
b92e08fc
JM		 6354 wpa_printf(MSG_DEBUG, "nl80211: pairwise_ciphers=0x%x",
6355 params->pairwise_ciphers);
b11d1d64
JM		 6356 num_suites = 0;
6357 if (params->pairwise_ciphers & WPA_CIPHER_CCMP)
6358 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP;
eb7719ff
JM		 6359 if (params->pairwise_ciphers & WPA_CIPHER_GCMP)
6360 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP;
b11d1d64
JM		 6361 if (params->pairwise_ciphers & WPA_CIPHER_TKIP)
6362 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP;
6363 if (params->pairwise_ciphers & WPA_CIPHER_WEP104)
6364 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104;
6365 if (params->pairwise_ciphers & WPA_CIPHER_WEP40)
6366 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40;
6367 if (num_suites) {
6368 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE,
6369 num_suites * sizeof(u32), suites);
6370 }
6371
b92e08fc
JM		 6372 wpa_printf(MSG_DEBUG, "nl80211: group_cipher=0x%x",
6373 params->group_cipher);
b11d1d64
JM		 6374 switch (params->group_cipher) {
6375 case WPA_CIPHER_CCMP:
6376 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
6377 WLAN_CIPHER_SUITE_CCMP);
6378 break;
eb7719ff
JM		 6379 case WPA_CIPHER_GCMP:
6380 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
6381 WLAN_CIPHER_SUITE_GCMP);
6382 break;
b11d1d64
JM		 6383 case WPA_CIPHER_TKIP:
6384 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
6385 WLAN_CIPHER_SUITE_TKIP);
6386 break;
6387 case WPA_CIPHER_WEP104:
6388 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
6389 WLAN_CIPHER_SUITE_WEP104);
6390 break;
6391 case WPA_CIPHER_WEP40:
6392 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
6393 WLAN_CIPHER_SUITE_WEP40);
6394 break;
6395 }
d2440ba0 6396
fb91db56 6397 if (params->beacon_ies) {
b92e08fc
JM		 6398 wpa_hexdump_buf(MSG_DEBUG, "nl80211: beacon_ies",
6399 params->beacon_ies);
fb91db56
JM		 6400 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies),
6401 wpabuf_head(params->beacon_ies));
6402 }
6403 if (params->proberesp_ies) {
b92e08fc
JM		 6404 wpa_hexdump_buf(MSG_DEBUG, "nl80211: proberesp_ies",
6405 params->proberesp_ies);
fb91db56
JM		 6406 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP,
6407 wpabuf_len(params->proberesp_ies),
6408 wpabuf_head(params->proberesp_ies));
6409 }
6410 if (params->assocresp_ies) {
b92e08fc
JM		 6411 wpa_hexdump_buf(MSG_DEBUG, "nl80211: assocresp_ies",
6412 params->assocresp_ies);
fb91db56
JM		 6413 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP,
6414 wpabuf_len(params->assocresp_ies),
6415 wpabuf_head(params->assocresp_ies));
6416 }
6417
a0133ee1 6418 if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) {
b92e08fc
JM		 6419 wpa_printf(MSG_DEBUG, "nl80211: ap_max_inactivity=%d",
6420 params->ap_max_inactivity);
a0133ee1
VT		 6421 NLA_PUT_U16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT,
6422 params->ap_max_inactivity);
6423 }
6424
d2440ba0
JM		 6425 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6426 if (ret) {
6427 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)",
6428 ret, strerror(-ret));
b4fd6fab 6429 } else {
b4fd6fab 6430 bss->beacon_set = 1;
31357268 6431 nl80211_set_bss(bss, params->cts_protect, params->preamble,
d03e8d11 6432 params->short_slot_time, params->ht_opmode,
e5693c47 6433 params->isolate, params->basic_rates);
b4fd6fab 6434 }
d2440ba0
JM		 6435 return ret;
6436 nla_put_failure:
5883168a 6437 nlmsg_free(msg);
d2440ba0
JM		 6438 return -ENOBUFS;
6439}
6440
6441
e4fb2167 6442static int wpa_driver_nl80211_set_freq(struct i802_bss *bss,
89b800d7 6443 struct hostapd_freq_params *freq)
1581b38b 6444{
e4fb2167 6445 struct wpa_driver_nl80211_data *drv = bss->drv;
1581b38b 6446 struct nl_msg *msg;
d2440ba0 6447 int ret;
1581b38b 6448
89b800d7
JB		 6449 wpa_printf(MSG_DEBUG, "nl80211: Set freq %d (ht_enabled=%d, vht_enabled=%d,"
6450 " bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)",
6451 freq->freq, freq->ht_enabled, freq->vht_enabled,
6452 freq->bandwidth, freq->center_freq1, freq->center_freq2);
1581b38b
JM		 6453 msg = nlmsg_alloc();
6454 if (!msg)
6455 return -1;
6456
9fb04070 6457 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
1581b38b
JM		 6458
6459 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
89b800d7
JB		 6460 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq);
6461 if (freq->vht_enabled) {
6462 switch (freq->bandwidth) {
6463 case 20:
6464 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
6465 NL80211_CHAN_WIDTH_20);
6466 break;
6467 case 40:
6468 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
6469 NL80211_CHAN_WIDTH_40);
6470 break;
6471 case 80:
6472 if (freq->center_freq2)
6473 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
6474 NL80211_CHAN_WIDTH_80P80);
6475 else
6476 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
6477 NL80211_CHAN_WIDTH_80);
6478 break;
6479 case 160:
6480 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
6481 NL80211_CHAN_WIDTH_160);
6482 break;
6483 default:
6484 return -1;
6485 }
6486 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1);
6487 if (freq->center_freq2)
6488 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2,
6489 freq->center_freq2);
6490 } else if (freq->ht_enabled) {
6491 switch (freq->sec_channel_offset) {
f019981a
JM		 6492 case -1:
6493 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
6494 NL80211_CHAN_HT40MINUS);
6495 break;
6496 case 1:
6497 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
6498 NL80211_CHAN_HT40PLUS);
6499 break;
6500 default:
6501 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
6502 NL80211_CHAN_HT20);
6503 break;
6504 }
6505 }
1581b38b 6506
d2440ba0 6507 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5883168a 6508 msg = NULL;
e4fb2167 6509 if (ret == 0) {
89b800d7 6510 bss->freq = freq->freq;
1581b38b 6511 return 0;
e4fb2167 6512 }
f019981a 6513 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): "
89b800d7 6514 "%d (%s)", freq->freq, ret, strerror(-ret));
1581b38b 6515nla_put_failure:
5883168a 6516 nlmsg_free(msg);
1581b38b
JM		 6517 return -1;
6518}
6519
0f4e8b4f 6520
95ab6063
AN		 6521static u32 sta_flags_nl80211(int flags)
6522{
6523 u32 f = 0;
6524
6525 if (flags & WPA_STA_AUTHORIZED)
6526 f |= BIT(NL80211_STA_FLAG_AUTHORIZED);
6527 if (flags & WPA_STA_WMM)
6528 f |= BIT(NL80211_STA_FLAG_WME);
6529 if (flags & WPA_STA_SHORT_PREAMBLE)
6530 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
6531 if (flags & WPA_STA_MFP)
6532 f |= BIT(NL80211_STA_FLAG_MFP);
45b722f1
AN		 6533 if (flags & WPA_STA_TDLS_PEER)
6534 f |= BIT(NL80211_STA_FLAG_TDLS_PEER);
95ab6063
AN		 6535
6536 return f;
6537}
6538
6539
62847751 6540static int wpa_driver_nl80211_sta_add(void *priv,
0f4e8b4f
JM		 6541 struct hostapd_sta_add_params *params)
6542{
a2e40bb6
FF		 6543 struct i802_bss *bss = priv;
6544 struct wpa_driver_nl80211_data *drv = bss->drv;
8970bae8 6545 struct nl_msg *msg;
95ab6063 6546 struct nl80211_sta_flag_update upd;
0f4e8b4f
JM		 6547 int ret = -ENOBUFS;
6548
45b722f1
AN		 6549 if ((params->flags & WPA_STA_TDLS_PEER) &&
6550 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
6551 return -EOPNOTSUPP;
6552
0f4e8b4f
JM		 6553 msg = nlmsg_alloc();
6554 if (!msg)
6555 return -ENOMEM;
6556
e4dea253
JM		 6557 wpa_printf(MSG_DEBUG, "nl80211: %s STA " MACSTR,
6558 params->set ? "Set" : "Add", MAC2STR(params->addr));
45b722f1
AN		 6559 nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION :
6560 NL80211_CMD_NEW_STATION);
0f4e8b4f 6561
62847751 6562 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
0f4e8b4f 6563 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr);
0f4e8b4f
JM		 6564 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len,
6565 params->supp_rates);
e4dea253
JM		 6566 wpa_hexdump(MSG_DEBUG, " * supported rates", params->supp_rates,
6567 params->supp_rates_len);
45b722f1 6568 if (!params->set) {
f11b72c3
JM		 6569 if (params->aid) {
6570 wpa_printf(MSG_DEBUG, " * aid=%u", params->aid);
6571 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid);
6572 } else {
6573 /*
6574 * cfg80211 validates that AID is non-zero, so we have
6575 * to make this a non-zero value for the TDLS case where
6576 * a dummy STA entry is used for now.
6577 */
6578 wpa_printf(MSG_DEBUG, " * aid=1 (TDLS workaround)");
6579 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, 1);
6580 }
e4dea253
JM		 6581 wpa_printf(MSG_DEBUG, " * listen_interval=%u",
6582 params->listen_interval);
45b722f1
AN		 6583 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL,
6584 params->listen_interval);
e112764e
JM		 6585 } else if (params->aid && (params->flags & WPA_STA_TDLS_PEER)) {
6586 wpa_printf(MSG_DEBUG, " * peer_aid=%u", params->aid);
6587 NLA_PUT_U16(msg, NL80211_ATTR_PEER_AID, params->aid);
45b722f1 6588 }
0f4e8b4f 6589 if (params->ht_capabilities) {
e4dea253
JM		 6590 wpa_hexdump(MSG_DEBUG, " * ht_capabilities",
6591 (u8 *) params->ht_capabilities,
6592 sizeof(*params->ht_capabilities));
0f4e8b4f 6593 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY,
fc4e2d95
JM		 6594 sizeof(*params->ht_capabilities),
6595 params->ht_capabilities);
0f4e8b4f 6596 }
0f4e8b4f 6597
05a8d422 6598 if (params->vht_capabilities) {
e4dea253
JM		 6599 wpa_hexdump(MSG_DEBUG, " * vht_capabilities",
6600 (u8 *) params->vht_capabilities,
6601 sizeof(*params->vht_capabilities));
05a8d422
JB		 6602 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY,
6603 sizeof(*params->vht_capabilities),
6604 params->vht_capabilities);
6605 }
6606
122d16f2
SD		 6607 wpa_printf(MSG_DEBUG, " * capability=0x%x", params->capability);
6608 NLA_PUT_U16(msg, NL80211_ATTR_STA_CAPABILITY, params->capability);
6609
6610 if (params->ext_capab) {
6611 wpa_hexdump(MSG_DEBUG, " * ext_capab",
6612 params->ext_capab, params->ext_capab_len);
6613 NLA_PUT(msg, NL80211_ATTR_STA_EXT_CAPABILITY,
6614 params->ext_capab_len, params->ext_capab);
6615 }
6616
95ab6063
AN		 6617 os_memset(&upd, 0, sizeof(upd));
6618 upd.mask = sta_flags_nl80211(params->flags);
6619 upd.set = upd.mask;
e4dea253
JM		 6620 wpa_printf(MSG_DEBUG, " * flags set=0x%x mask=0x%x",
6621 upd.set, upd.mask);
95ab6063
AN		 6622 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
6623
774bfa62 6624 if (params->flags & WPA_STA_WMM) {
8970bae8
JB		 6625 struct nlattr *wme = nla_nest_start(msg, NL80211_ATTR_STA_WME);
6626
774bfa62
EP		 6627 if (!wme)
6628 goto nla_put_failure;
6629
e4dea253 6630 wpa_printf(MSG_DEBUG, " * qosinfo=0x%x", params->qosinfo);
8970bae8 6631 NLA_PUT_U8(msg, NL80211_STA_WME_UAPSD_QUEUES,
5d061637 6632 params->qosinfo & WMM_QOSINFO_STA_AC_MASK);
8970bae8 6633 NLA_PUT_U8(msg, NL80211_STA_WME_MAX_SP,
bdaf1748 6634 (params->qosinfo >> WMM_QOSINFO_STA_SP_SHIFT) &
5d061637 6635 WMM_QOSINFO_STA_SP_MASK);
8970bae8 6636 nla_nest_end(msg, wme);
774bfa62
EP		 6637 }
6638
0f4e8b4f 6639 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5883168a 6640 msg = NULL;
0f4e8b4f 6641 if (ret)
45b722f1
AN		 6642 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION "
6643 "result: %d (%s)", params->set ? "SET" : "NEW", ret,
6644 strerror(-ret));
0f4e8b4f
JM		 6645 if (ret == -EEXIST)
6646 ret = 0;
6647 nla_put_failure:
5883168a 6648 nlmsg_free(msg);
0f4e8b4f
JM		 6649 return ret;
6650}
6651
6652
9ebce9c5 6653static int wpa_driver_nl80211_sta_remove(struct i802_bss *bss, const u8 *addr)
0f4e8b4f 6654{
a2e40bb6 6655 struct wpa_driver_nl80211_data *drv = bss->drv;
0f4e8b4f
JM		 6656 struct nl_msg *msg;
6657 int ret;
6658
6659 msg = nlmsg_alloc();
6660 if (!msg)
6661 return -ENOMEM;
6662
9fb04070 6663 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION);
0f4e8b4f
JM		 6664
6665 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 6666 if_nametoindex(bss->ifname));
0f4e8b4f
JM		 6667 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6668
6669 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6670 if (ret == -ENOENT)
6671 return 0;
6672 return ret;
6673 nla_put_failure:
5883168a 6674 nlmsg_free(msg);
0f4e8b4f
JM		 6675 return -ENOBUFS;
6676}
6677
1581b38b 6678
0915d02c
JM		 6679static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
6680 int ifidx)
6681{
6682 struct nl_msg *msg;
6683
c6e8e8e4
JM		 6684 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx);
6685
2135f224
JM		 6686 /* stop listening for EAPOL on this interface */
6687 del_ifidx(drv, ifidx);
2135f224 6688
0915d02c
JM		 6689 msg = nlmsg_alloc();
6690 if (!msg)
6691 goto nla_put_failure;
6692
9fb04070 6693 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE);
0915d02c
JM		 6694 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx);
6695
6696 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
6697 return;
5883168a 6698 msg = NULL;
0915d02c 6699 nla_put_failure:
5883168a 6700 nlmsg_free(msg);
e748062b 6701 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx);
0915d02c
JM		 6702}
6703
6704
a1922f93
JM		 6705static const char * nl80211_iftype_str(enum nl80211_iftype mode)
6706{
6707 switch (mode) {
6708 case NL80211_IFTYPE_ADHOC:
6709 return "ADHOC";
6710 case NL80211_IFTYPE_STATION:
6711 return "STATION";
6712 case NL80211_IFTYPE_AP:
6713 return "AP";
1045ec36
JM		 6714 case NL80211_IFTYPE_AP_VLAN:
6715 return "AP_VLAN";
6716 case NL80211_IFTYPE_WDS:
6717 return "WDS";
a1922f93
JM		 6718 case NL80211_IFTYPE_MONITOR:
6719 return "MONITOR";
1045ec36
JM		 6720 case NL80211_IFTYPE_MESH_POINT:
6721 return "MESH_POINT";
a1922f93
JM		 6722 case NL80211_IFTYPE_P2P_CLIENT:
6723 return "P2P_CLIENT";
6724 case NL80211_IFTYPE_P2P_GO:
6725 return "P2P_GO";
7aad838c
NS		 6726 case NL80211_IFTYPE_P2P_DEVICE:
6727 return "P2P_DEVICE";
a1922f93
JM		 6728 default:
6729 return "unknown";
6730 }
6731}
6732
6733
a35187e7
KH		 6734static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv,
6735 const char *ifname,
6736 enum nl80211_iftype iftype,
d6dcfcda
DS		 6737 const u8 *addr, int wds,
6738 int (*handler)(struct nl_msg *, void *),
6739 void *arg)
0915d02c 6740{
8970bae8 6741 struct nl_msg *msg;
0915d02c
JM		 6742 int ifidx;
6743 int ret = -ENOBUFS;
6744
a1922f93
JM		 6745 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)",
6746 iftype, nl80211_iftype_str(iftype));
6747
0915d02c
JM		 6748 msg = nlmsg_alloc();
6749 if (!msg)
6750 return -1;
6751
9fb04070 6752 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE);
fa93de40
AS		 6753 if (nl80211_set_iface_id(msg, &drv->first_bss) < 0)
6754 goto nla_put_failure;
0915d02c
JM		 6755 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname);
6756 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype);
6757
6758 if (iftype == NL80211_IFTYPE_MONITOR) {
8970bae8 6759 struct nlattr *flags;
0915d02c 6760
8970bae8 6761 flags = nla_nest_start(msg, NL80211_ATTR_MNTR_FLAGS);
0915d02c
JM		 6762 if (!flags)
6763 goto nla_put_failure;
6764
8970bae8 6765 NLA_PUT_FLAG(msg, NL80211_MNTR_FLAG_COOK_FRAMES);
0915d02c 6766
8970bae8 6767 nla_nest_end(msg, flags);
fbbfcbac
FF		 6768 } else if (wds) {
6769 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds);
0915d02c
JM		 6770 }
6771
d6dcfcda 6772 ret = send_and_recv_msgs(drv, msg, handler, arg);
5883168a 6773 msg = NULL;
0915d02c
JM		 6774 if (ret) {
6775 nla_put_failure:
5883168a 6776 nlmsg_free(msg);
a35187e7
KH		 6777 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)",
6778 ifname, ret, strerror(-ret));
0915d02c
JM		 6779 return ret;
6780 }
6781
f632e483 6782 if (iftype == NL80211_IFTYPE_P2P_DEVICE)
6bae92e0 6783 return 0;
6bae92e0 6784
0915d02c 6785 ifidx = if_nametoindex(ifname);
c6e8e8e4
JM		 6786 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d",
6787 ifname, ifidx);
0915d02c
JM		 6788
6789 if (ifidx <= 0)
6790 return -1;
6791
2135f224
JM		 6792 /* start listening for EAPOL on this interface */
6793 add_ifidx(drv, ifidx);
6794
7bfc47c3 6795 if (addr && iftype != NL80211_IFTYPE_MONITOR &&
c81eff1a 6796 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) {
41d931ee
JM		 6797 nl80211_remove_iface(drv, ifidx);
6798 return -1;
2135f224 6799 }
2135f224 6800
0915d02c
JM		 6801 return ifidx;
6802}
22a7c9d7
JM		 6803
6804
a35187e7
KH		 6805static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
6806 const char *ifname, enum nl80211_iftype iftype,
d6dcfcda
DS		 6807 const u8 *addr, int wds,
6808 int (*handler)(struct nl_msg *, void *),
6809 void *arg)
a35187e7
KH		 6810{
6811 int ret;
6812
d6dcfcda
DS		 6813 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds, handler,
6814 arg);
a35187e7 6815
ffbf1eaa 6816 /* if error occurred and interface exists already */
a35187e7
KH		 6817 if (ret == -ENFILE && if_nametoindex(ifname)) {
6818 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname);
6819
6820 /* Try to remove the interface that was already there. */
6821 nl80211_remove_iface(drv, if_nametoindex(ifname));
6822
6823 /* Try to create the interface again */
fbbfcbac 6824 ret = nl80211_create_iface_once(drv, ifname, iftype, addr,
d6dcfcda 6825 wds, handler, arg);
a35187e7
KH		 6826 }
6827
6a71413e 6828 if (ret >= 0 && is_p2p_net_interface(iftype))
4e5cb1a3
JM		 6829 nl80211_disable_11b_rates(drv, ret, 1);
6830
a35187e7
KH		 6831 return ret;
6832}
0915d02c 6833
2135f224 6834
0915d02c
JM		 6835static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok)
6836{
6837 struct ieee80211_hdr *hdr;
f8b1f695
JM		 6838 u16 fc;
6839 union wpa_event_data event;
0915d02c
JM		 6840
6841 hdr = (struct ieee80211_hdr *) buf;
6842 fc = le_to_host16(hdr->frame_control);
6843
f8b1f695
JM		 6844 os_memset(&event, 0, sizeof(event));
6845 event.tx_status.type = WLAN_FC_GET_TYPE(fc);
6846 event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
6847 event.tx_status.dst = hdr->addr1;
6848 event.tx_status.data = buf;
6849 event.tx_status.data_len = len;
6850 event.tx_status.ack = ok;
6851 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event);
0915d02c
JM		 6852}
6853
6854
4b9841d3 6855static void from_unknown_sta(struct wpa_driver_nl80211_data *drv,
0d9fc3d8 6856 u8 *buf, size_t len)
0915d02c 6857{
9b90955e
JB		 6858 struct ieee80211_hdr *hdr = (void *)buf;
6859 u16 fc;
f8b1f695 6860 union wpa_event_data event;
9b90955e
JB		 6861
6862 if (len < sizeof(*hdr))
6863 return;
6864
6865 fc = le_to_host16(hdr->frame_control);
6866
f8b1f695 6867 os_memset(&event, 0, sizeof(event));
9b90955e
JB		 6868 event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len);
6869 event.rx_from_unknown.addr = hdr->addr2;
6870 event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) ==
6871 (WLAN_FC_FROMDS | WLAN_FC_TODS);
f8b1f695 6872 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event);
4b9841d3 6873}
0915d02c 6874
4b9841d3
JM		 6875
6876static void handle_frame(struct wpa_driver_nl80211_data *drv,
2a8b7416 6877 u8 *buf, size_t len, int datarate, int ssi_signal)
4b9841d3
JM		 6878{
6879 struct ieee80211_hdr *hdr;
f8b1f695
JM		 6880 u16 fc;
6881 union wpa_event_data event;
0915d02c
JM		 6882
6883 hdr = (struct ieee80211_hdr *) buf;
6884 fc = le_to_host16(hdr->frame_control);
0915d02c 6885
4b9841d3 6886 switch (WLAN_FC_GET_TYPE(fc)) {
0915d02c 6887 case WLAN_FC_TYPE_MGMT:
f8b1f695
JM		 6888 os_memset(&event, 0, sizeof(event));
6889 event.rx_mgmt.frame = buf;
6890 event.rx_mgmt.frame_len = len;
2a8b7416
JM		 6891 event.rx_mgmt.datarate = datarate;
6892 event.rx_mgmt.ssi_signal = ssi_signal;
f8b1f695 6893 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
0915d02c
JM		 6894 break;
6895 case WLAN_FC_TYPE_CTRL:
6896 /* can only get here with PS-Poll frames */
6897 wpa_printf(MSG_DEBUG, "CTRL");
0d9fc3d8 6898 from_unknown_sta(drv, buf, len);
0915d02c
JM		 6899 break;
6900 case WLAN_FC_TYPE_DATA:
0d9fc3d8 6901 from_unknown_sta(drv, buf, len);
0915d02c
JM		 6902 break;
6903 }
6904}
6905
6906
6907static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx)
6908{
6909 struct wpa_driver_nl80211_data *drv = eloop_ctx;
6910 int len;
6911 unsigned char buf[3000];
6912 struct ieee80211_radiotap_iterator iter;
6913 int ret;
2a8b7416 6914 int datarate = 0, ssi_signal = 0;
4b9841d3 6915 int injected = 0, failed = 0, rxflags = 0;
0915d02c
JM		 6916
6917 len = recv(sock, buf, sizeof(buf), 0);
6918 if (len < 0) {
6919 perror("recv");
6920 return;
6921 }
6922
6923 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) {
6924 printf("received invalid radiotap frame\n");
6925 return;
6926 }
6927
0915d02c
JM		 6928 while (1) {
6929 ret = ieee80211_radiotap_iterator_next(&iter);
6930 if (ret == -ENOENT)
6931 break;
6932 if (ret) {
6933 printf("received invalid radiotap frame (%d)\n", ret);
6934 return;
6935 }
6936 switch (iter.this_arg_index) {
6937 case IEEE80211_RADIOTAP_FLAGS:
6938 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS)
6939 len -= 4;
6940 break;
6941 case IEEE80211_RADIOTAP_RX_FLAGS:
6942 rxflags = 1;
6943 break;
6944 case IEEE80211_RADIOTAP_TX_FLAGS:
6945 injected = 1;
6946 failed = le_to_host16((*(uint16_t *) iter.this_arg)) &
6947 IEEE80211_RADIOTAP_F_TX_FAIL;
6948 break;
6949 case IEEE80211_RADIOTAP_DATA_RETRIES:
6950 break;
6951 case IEEE80211_RADIOTAP_CHANNEL:
2a8b7416 6952 /* TODO: convert from freq/flags to channel number */
0915d02c
JM		 6953 break;
6954 case IEEE80211_RADIOTAP_RATE:
2a8b7416 6955 datarate = *iter.this_arg * 5;
0915d02c 6956 break;
baf513d6
JB		 6957 case IEEE80211_RADIOTAP_DBM_ANTSIGNAL:
6958 ssi_signal = (s8) *iter.this_arg;
0915d02c
JM		 6959 break;
6960 }
6961 }
6962
6963 if (rxflags && injected)
6964 return;
6965
6966 if (!injected)
4b9841d3 6967 handle_frame(drv, buf + iter.max_length,
2a8b7416 6968 len - iter.max_length, datarate, ssi_signal);
0915d02c 6969 else
4b9841d3
JM		 6970 handle_tx_callback(drv->ctx, buf + iter.max_length,
6971 len - iter.max_length, !failed);
0915d02c
JM		 6972}
6973
6974
6975/*
6976 * we post-process the filter code later and rewrite
6977 * this to the offset to the last instruction
6978 */
6979#define PASS 0xFF
6980#define FAIL 0xFE
6981
6982static struct sock_filter msock_filter_insns[] = {
6983 /*
6984 * do a little-endian load of the radiotap length field
6985 */
6986 /* load lower byte into A */
6987 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2),
6988 /* put it into X (== index register) */
6989 BPF_STMT(BPF_MISC| BPF_TAX, 0),
6990 /* load upper byte into A */
6991 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3),
6992 /* left-shift it by 8 */
6993 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8),
6994 /* or with X */
6995 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0),
6996 /* put result into X */
6997 BPF_STMT(BPF_MISC| BPF_TAX, 0),
6998
6999 /*
7000 * Allow management frames through, this also gives us those
7001 * management frames that we sent ourselves with status
7002 */
7003 /* load the lower byte of the IEEE 802.11 frame control field */
7004 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
7005 /* mask off frame type and version */
7006 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF),
7007 /* accept frame if it's both 0, fall through otherwise */
7008 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0),
7009
7010 /*
7011 * TODO: add a bit to radiotap RX flags that indicates
7012 * that the sending station is not associated, then
7013 * add a filter here that filters on our DA and that flag
7014 * to allow us to deauth frames to that bad station.
7015 *
65ae1afd 7016 * For now allow all To DS data frames through.
0915d02c 7017 */
65ae1afd
HS		 7018 /* load the IEEE 802.11 frame control field */
7019 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0),
7020 /* mask off frame type, version and DS status */
7021 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03),
7022 /* accept frame if version 0, type 2 and To DS, fall through otherwise
7023 */
7024 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0),
0915d02c
JM		 7025
7026#if 0
7027 /*
fbbfcbac 7028 * drop non-data frames
0915d02c
JM		 7029 */
7030 /* load the lower byte of the frame control field */
7031 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
7032 /* mask off QoS bit */
7033 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c),
7034 /* drop non-data frames */
7035 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL),
fbbfcbac 7036#endif
0915d02c 7037 /* load the upper byte of the frame control field */
fbbfcbac 7038 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1),
0915d02c
JM		 7039 /* mask off toDS/fromDS */
7040 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03),
fbbfcbac
FF		 7041 /* accept WDS frames */
7042 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0),
0915d02c
JM		 7043
7044 /*
7045 * add header length to index
7046 */
7047 /* load the lower byte of the frame control field */
7048 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
7049 /* mask off QoS bit */
7050 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80),
7051 /* right shift it by 6 to give 0 or 2 */
7052 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6),
7053 /* add data frame header length */
7054 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24),
7055 /* add index, was start of 802.11 header */
7056 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0),
7057 /* move to index, now start of LL header */
7058 BPF_STMT(BPF_MISC | BPF_TAX, 0),
7059
7060 /*
7061 * Accept empty data frames, we use those for
7062 * polling activity.
7063 */
7064 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0),
7065 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0),
7066
7067 /*
7068 * Accept EAPOL frames
7069 */
7070 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0),
7071 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL),
7072 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4),
7073 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL),
7074
7075 /* keep these last two statements or change the code below */
7076 /* return 0 == "DROP" */
7077 BPF_STMT(BPF_RET | BPF_K, 0),
7078 /* return ~0 == "keep all" */
7079 BPF_STMT(BPF_RET | BPF_K, ~0),
7080};
7081
7082static struct sock_fprog msock_filter = {
7083 .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]),
7084 .filter = msock_filter_insns,
7085};
7086
7087
7088static int add_monitor_filter(int s)
7089{
7090 int idx;
7091
7092 /* rewrite all PASS/FAIL jump offsets */
7093 for (idx = 0; idx < msock_filter.len; idx++) {
7094 struct sock_filter *insn = &msock_filter_insns[idx];
7095
7096 if (BPF_CLASS(insn->code) == BPF_JMP) {
7097 if (insn->code == (BPF_JMP|BPF_JA)) {
7098 if (insn->k == PASS)
7099 insn->k = msock_filter.len - idx - 2;
7100 else if (insn->k == FAIL)
7101 insn->k = msock_filter.len - idx - 3;
7102 }
7103
7104 if (insn->jt == PASS)
7105 insn->jt = msock_filter.len - idx - 2;
7106 else if (insn->jt == FAIL)
7107 insn->jt = msock_filter.len - idx - 3;
7108
7109 if (insn->jf == PASS)
7110 insn->jf = msock_filter.len - idx - 2;
7111 else if (insn->jf == FAIL)
7112 insn->jf = msock_filter.len - idx - 3;
7113 }
7114 }
7115
7116 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER,
7117 &msock_filter, sizeof(msock_filter))) {
7118 perror("SO_ATTACH_FILTER");
7119 return -1;
7120 }
7121
7122 return 0;
7123}
7124
7125
460456f8
JM		 7126static void nl80211_remove_monitor_interface(
7127 struct wpa_driver_nl80211_data *drv)
7128{
3fd1cefb
JB		 7129 drv->monitor_refcount--;
7130 if (drv->monitor_refcount > 0)
7131 return;
7132
460456f8
JM		 7133 if (drv->monitor_ifidx >= 0) {
7134 nl80211_remove_iface(drv, drv->monitor_ifidx);
7135 drv->monitor_ifidx = -1;
7136 }
504e905c
JM		 7137 if (drv->monitor_sock >= 0) {
7138 eloop_unregister_read_sock(drv->monitor_sock);
7139 close(drv->monitor_sock);
7140 drv->monitor_sock = -1;
7141 }
460456f8
JM		 7142}
7143
7144
0915d02c
JM		 7145static int
7146nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv)
7147{
7148 char buf[IFNAMSIZ];
7149 struct sockaddr_ll ll;
7150 int optval;
7151 socklen_t optlen;
0915d02c 7152
3fd1cefb
JB		 7153 if (drv->monitor_ifidx >= 0) {
7154 drv->monitor_refcount++;
7155 return 0;
7156 }
7157
6758b167
JJ		 7158 if (os_strncmp(drv->first_bss.ifname, "p2p-", 4) == 0) {
7159 /*
7160 * P2P interface name is of the format p2p-%s-%d. For monitor
7161 * interface name corresponding to P2P GO, replace "p2p-" with
7162 * "mon-" to retain the same interface name length and to
7163 * indicate that it is a monitor interface.
7164 */
7165 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss.ifname + 4);
7166 } else {
7167 /* Non-P2P interface with AP functionality. */
7168 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss.ifname);
7169 }
7170
0915d02c
JM		 7171 buf[IFNAMSIZ - 1] = '\0';
7172
7173 drv->monitor_ifidx =
fbbfcbac 7174 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL,
d6dcfcda 7175 0, NULL, NULL);
0915d02c 7176
866af8b6 7177 if (drv->monitor_ifidx == -EOPNOTSUPP) {
61cbe2ff
JB		 7178 /*
7179 * This is backward compatibility for a few versions of
7180 * the kernel only that didn't advertise the right
7181 * attributes for the only driver that then supported
7182 * AP mode w/o monitor -- ath6kl.
7183 */
866af8b6
JM		 7184 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support "
7185 "monitor interface type - try to run without it");
61cbe2ff 7186 drv->device_ap_sme = 1;
866af8b6
JM		 7187 }
7188
0915d02c
JM		 7189 if (drv->monitor_ifidx < 0)
7190 return -1;
7191
c81eff1a 7192 if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1))
0915d02c 7193 goto error;
0915d02c
JM		 7194
7195 memset(&ll, 0, sizeof(ll));
7196 ll.sll_family = AF_PACKET;
7197 ll.sll_ifindex = drv->monitor_ifidx;
7198 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
7199 if (drv->monitor_sock < 0) {
7200 perror("socket[PF_PACKET,SOCK_RAW]");
7201 goto error;
7202 }
7203
7204 if (add_monitor_filter(drv->monitor_sock)) {
7205 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor "
7206 "interface; do filtering in user space");
7207 /* This works, but will cost in performance. */
7208 }
7209
2135f224 7210 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) {
0915d02c
JM		 7211 perror("monitor socket bind");
7212 goto error;
7213 }
7214
7215 optlen = sizeof(optval);
7216 optval = 20;
7217 if (setsockopt
7218 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) {
7219 perror("Failed to set socket priority");
7220 goto error;
7221 }
7222
7223 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read,
7224 drv, NULL)) {
7225 printf("Could not register monitor read socket\n");
7226 goto error;
7227 }
7228
7229 return 0;
7230 error:
460456f8 7231 nl80211_remove_monitor_interface(drv);
0915d02c
JM		 7232 return -1;
7233}
7234
db149ac9 7235
3fd1cefb
JB		 7236static int nl80211_setup_ap(struct i802_bss *bss)
7237{
7238 struct wpa_driver_nl80211_data *drv = bss->drv;
7239
36488c05
JM		 7240 wpa_printf(MSG_DEBUG, "nl80211: Setup AP - device_ap_sme=%d "
7241 "use_monitor=%d", drv->device_ap_sme, drv->use_monitor);
7242
a11241fa
JB		 7243 /*
7244 * Disable Probe Request reporting unless we need it in this way for
7245 * devices that include the AP SME, in the other case (unless using
7246 * monitor iface) we'll get it through the nl_mgmt socket instead.
7247 */
7248 if (!drv->device_ap_sme)
7249 wpa_driver_nl80211_probe_req_report(bss, 0);
7250
7251 if (!drv->device_ap_sme && !drv->use_monitor)
7252 if (nl80211_mgmt_subscribe_ap(bss))
7253 return -1;
7254
a6cc0602
JM		 7255 if (drv->device_ap_sme && !drv->use_monitor)
7256 if (nl80211_mgmt_subscribe_ap_dev_sme(bss))
7257 return -1;
7258
a11241fa 7259 if (!drv->device_ap_sme && drv->use_monitor &&
3fd1cefb
JB		 7260 nl80211_create_monitor_interface(drv) &&
7261 !drv->device_ap_sme)
7262 return -1;
7263
7264 if (drv->device_ap_sme &&
7265 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) {
7266 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable "
7267 "Probe Request frame reporting in AP mode");
7268 /* Try to survive without this */
7269 }
7270
7271 return 0;
7272}
7273
7274
7275static void nl80211_teardown_ap(struct i802_bss *bss)
7276{
7277 struct wpa_driver_nl80211_data *drv = bss->drv;
7278
a6cc0602 7279 if (drv->device_ap_sme) {
3fd1cefb 7280 wpa_driver_nl80211_probe_req_report(bss, 0);
a6cc0602
JM		 7281 if (!drv->use_monitor)
7282 nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)");
7283 } else if (drv->use_monitor)
3fd1cefb 7284 nl80211_remove_monitor_interface(drv);
a11241fa 7285 else
36488c05 7286 nl80211_mgmt_unsubscribe(bss, "AP teardown");
a11241fa 7287
3fd1cefb
JB		 7288 bss->beacon_set = 0;
7289}
7290
7291
f10bfc9a
JM		 7292static int nl80211_send_eapol_data(struct i802_bss *bss,
7293 const u8 *addr, const u8 *data,
d12dab4c 7294 size_t data_len)
f10bfc9a 7295{
d12dab4c
JB		 7296 struct sockaddr_ll ll;
7297 int ret;
7298
7299 if (bss->drv->eapol_tx_sock < 0) {
7300 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL");
f10bfc9a
JM		 7301 return -1;
7302 }
7303
d12dab4c
JB		 7304 os_memset(&ll, 0, sizeof(ll));
7305 ll.sll_family = AF_PACKET;
7306 ll.sll_ifindex = bss->ifindex;
7307 ll.sll_protocol = htons(ETH_P_PAE);
7308 ll.sll_halen = ETH_ALEN;
7309 os_memcpy(ll.sll_addr, addr, ETH_ALEN);
7310 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0,
7311 (struct sockaddr *) &ll, sizeof(ll));
7312 if (ret < 0)
7313 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s",
7314 strerror(errno));
7315
7316 return ret;
f10bfc9a 7317}
5fb1a232 7318
f10bfc9a 7319
db149ac9
JM		 7320static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
7321
7322static int wpa_driver_nl80211_hapd_send_eapol(
7323 void *priv, const u8 *addr, const u8 *data,
4378fc14 7324 size_t data_len, int encrypt, const u8 *own_addr, u32 flags)
db149ac9 7325{
a2e40bb6
FF		 7326 struct i802_bss *bss = priv;
7327 struct wpa_driver_nl80211_data *drv = bss->drv;
db149ac9
JM		 7328 struct ieee80211_hdr *hdr;
7329 size_t len;
7330 u8 *pos;
7331 int res;
4378fc14 7332 int qos = flags & WPA_STA_WMM;
db149ac9 7333
a11241fa 7334 if (drv->device_ap_sme || !drv->use_monitor)
d12dab4c 7335 return nl80211_send_eapol_data(bss, addr, data, data_len);
f10bfc9a 7336
db149ac9
JM		 7337 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 +
7338 data_len;
7339 hdr = os_zalloc(len);
7340 if (hdr == NULL) {
7341 printf("malloc() failed for i802_send_data(len=%lu)\n",
7342 (unsigned long) len);
7343 return -1;
7344 }
7345
7346 hdr->frame_control =
7347 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA);
7348 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS);
7349 if (encrypt)
7350 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP);
db149ac9
JM		 7351 if (qos) {
7352 hdr->frame_control |=
7353 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4);
7354 }
db149ac9
JM		 7355
7356 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN);
7357 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
7358 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
7359 pos = (u8 *) (hdr + 1);
7360
db149ac9 7361 if (qos) {
92d521d8
FF		 7362 /* Set highest priority in QoS header */
7363 pos[0] = 7;
db149ac9
JM		 7364 pos[1] = 0;
7365 pos += 2;
7366 }
db149ac9
JM		 7367
7368 memcpy(pos, rfc1042_header, sizeof(rfc1042_header));
7369 pos += sizeof(rfc1042_header);
7370 WPA_PUT_BE16(pos, ETH_P_PAE);
7371 pos += 2;
7372 memcpy(pos, data, data_len);
7373
55231068
JM		 7374 res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0,
7375 0, 0, 0, 0);
db149ac9
JM		 7376 if (res < 0) {
7377 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - "
7378 "failed: %d (%s)",
7379 (unsigned long) len, errno, strerror(errno));
7380 }
7bf12757 7381 os_free(hdr);
db149ac9
JM		 7382
7383 return res;
7384}
7385
a8d6ffa4 7386
3234cba4
JM		 7387static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr,
7388 int total_flags,
4c32757d 7389 int flags_or, int flags_and)
a8d6ffa4 7390{
a2e40bb6
FF		 7391 struct i802_bss *bss = priv;
7392 struct wpa_driver_nl80211_data *drv = bss->drv;
8970bae8
JB		 7393 struct nl_msg *msg;
7394 struct nlattr *flags;
7e76ee9c 7395 struct nl80211_sta_flag_update upd;
a8d6ffa4
JM		 7396
7397 msg = nlmsg_alloc();
7398 if (!msg)
7399 return -ENOMEM;
7400
9fb04070 7401 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
a8d6ffa4
JM		 7402
7403 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
3234cba4 7404 if_nametoindex(bss->ifname));
a8d6ffa4
JM		 7405 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7406
7e76ee9c
JM		 7407 /*
7408 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This
7409 * can be removed eventually.
7410 */
8970bae8
JB		 7411 flags = nla_nest_start(msg, NL80211_ATTR_STA_FLAGS);
7412 if (!flags)
7413 goto nla_put_failure;
0de39516 7414 if (total_flags & WPA_STA_AUTHORIZED)
8970bae8 7415 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_AUTHORIZED);
a8d6ffa4 7416
0de39516 7417 if (total_flags & WPA_STA_WMM)
8970bae8 7418 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_WME);
a8d6ffa4 7419
0de39516 7420 if (total_flags & WPA_STA_SHORT_PREAMBLE)
8970bae8 7421 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_SHORT_PREAMBLE);
a8d6ffa4 7422
0de39516 7423 if (total_flags & WPA_STA_MFP)
8970bae8 7424 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_MFP);
a8d6ffa4 7425
45b722f1 7426 if (total_flags & WPA_STA_TDLS_PEER)
8970bae8 7427 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_TDLS_PEER);
45b722f1 7428
8970bae8 7429 nla_nest_end(msg, flags);
a8d6ffa4 7430
7e76ee9c
JM		 7431 os_memset(&upd, 0, sizeof(upd));
7432 upd.mask = sta_flags_nl80211(flags_or | ~flags_and);
7433 upd.set = sta_flags_nl80211(flags_or);
7434 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
7435
a8d6ffa4
JM		 7436 return send_and_recv_msgs(drv, msg, NULL, NULL);
7437 nla_put_failure:
5883168a 7438 nlmsg_free(msg);
a8d6ffa4
JM		 7439 return -ENOBUFS;
7440}
7441
0915d02c 7442
1581b38b
JM		 7443static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv,
7444 struct wpa_driver_associate_params *params)
7445{
708bc8e0 7446 enum nl80211_iftype nlmode, old_mode;
89b800d7
JB		 7447 struct hostapd_freq_params freq = {
7448 .freq = params->freq,
7449 };
b1f625e0
EP		 7450
7451 if (params->p2p) {
046b26a2
JM		 7452 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P "
7453 "group (GO)");
b1f625e0
EP		 7454 nlmode = NL80211_IFTYPE_P2P_GO;
7455 } else
7456 nlmode = NL80211_IFTYPE_AP;
7457
708bc8e0
JM		 7458 old_mode = drv->nlmode;
7459 if (wpa_driver_nl80211_set_mode(&drv->first_bss, nlmode)) {
7460 nl80211_remove_monitor_interface(drv);
7461 return -1;
7462 }
7463
89b800d7 7464 if (wpa_driver_nl80211_set_freq(&drv->first_bss, &freq)) {
708bc8e0
JM		 7465 if (old_mode != nlmode)
7466 wpa_driver_nl80211_set_mode(&drv->first_bss, old_mode);
460456f8 7467 nl80211_remove_monitor_interface(drv);
1581b38b 7468 return -1;
0915d02c 7469 }
1581b38b 7470
1581b38b
JM		 7471 return 0;
7472}
1581b38b
JM		 7473
7474
5cc4d64b
JM		 7475static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv)
7476{
7477 struct nl_msg *msg;
7478 int ret = -1;
7479
7480 msg = nlmsg_alloc();
7481 if (!msg)
7482 return -1;
7483
9fb04070 7484 nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS);
5cc4d64b
JM		 7485 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
7486 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7487 msg = NULL;
7488 if (ret) {
7489 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d "
7490 "(%s)", ret, strerror(-ret));
7491 goto nla_put_failure;
7492 }
7493
7494 ret = 0;
7495 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully");
7496
7497nla_put_failure:
7498 nlmsg_free(msg);
7499 return ret;
7500}
7501
7502
7503static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv,
7504 struct wpa_driver_associate_params *params)
7505{
7506 struct nl_msg *msg;
7507 int ret = -1;
7508 int count = 0;
7509
7510 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex);
7511
b1f625e0
EP		 7512 if (wpa_driver_nl80211_set_mode(&drv->first_bss,
7513 NL80211_IFTYPE_ADHOC)) {
5cc4d64b
JM		 7514 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into "
7515 "IBSS mode");
7516 return -1;
7517 }
7518
7519retry:
7520 msg = nlmsg_alloc();
7521 if (!msg)
7522 return -1;
7523
9fb04070 7524 nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS);
5cc4d64b
JM		 7525 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
7526
7527 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid))
7528 goto nla_put_failure;
7529
7530 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
7531 params->ssid, params->ssid_len);
7532 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
7533 params->ssid);
7534 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
7535 drv->ssid_len = params->ssid_len;
7536
7537 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
7538 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
7539
7540 ret = nl80211_set_conn_keys(params, msg);
7541 if (ret)
7542 goto nla_put_failure;
7543
913e3cf7
NC		 7544 if (params->bssid && params->fixed_bssid) {
7545 wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR,
7546 MAC2STR(params->bssid));
7547 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
7548 }
7549
e640888c
AQ		 7550 if (params->key_mgmt_suite == KEY_MGMT_802_1X ||
7551 params->key_mgmt_suite == KEY_MGMT_PSK ||
7552 params->key_mgmt_suite == KEY_MGMT_802_1X_SHA256 ||
7553 params->key_mgmt_suite == KEY_MGMT_PSK_SHA256) {
7554 wpa_printf(MSG_DEBUG, " * control port");
7555 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
7556 }
7557
a95795ad
JM		 7558 if (params->wpa_ie) {
7559 wpa_hexdump(MSG_DEBUG,
7560 " * Extra IEs for Beacon/Probe Response frames",
7561 params->wpa_ie, params->wpa_ie_len);
7562 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
7563 params->wpa_ie);
7564 }
7565
5cc4d64b
JM		 7566 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7567 msg = NULL;
7568 if (ret) {
7569 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)",
7570 ret, strerror(-ret));
7571 count++;
7572 if (ret == -EALREADY && count == 1) {
7573 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after "
7574 "forced leave");
7575 nl80211_leave_ibss(drv);
7576 nlmsg_free(msg);
7577 goto retry;
7578 }
7579
7580 goto nla_put_failure;
7581 }
7582 ret = 0;
7583 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully");
7584
7585nla_put_failure:
7586 nlmsg_free(msg);
7587 return ret;
7588}
7589
7590
a8c5b43a 7591static int wpa_driver_nl80211_try_connect(
cfaab580
ZY		 7592 struct wpa_driver_nl80211_data *drv,
7593 struct wpa_driver_associate_params *params)
7594{
7595 struct nl_msg *msg;
7596 enum nl80211_auth_type type;
7597 int ret = 0;
3f360238 7598 int algs;
cfaab580
ZY		 7599
7600 msg = nlmsg_alloc();
7601 if (!msg)
7602 return -1;
7603
7604 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex);
9fb04070 7605 nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT);
cfaab580
ZY		 7606
7607 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
7608 if (params->bssid) {
7609 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
7610 MAC2STR(params->bssid));
7611 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
7612 }
7613 if (params->freq) {
7614 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
7615 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
7616 }
1f6c0ab8
BS		 7617 if (params->bg_scan_period >= 0) {
7618 wpa_printf(MSG_DEBUG, " * bg scan period=%d",
7619 params->bg_scan_period);
7620 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD,
7621 params->bg_scan_period);
7622 }
cfaab580
ZY		 7623 if (params->ssid) {
7624 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
7625 params->ssid, params->ssid_len);
7626 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
7627 params->ssid);
7628 if (params->ssid_len > sizeof(drv->ssid))
7629 goto nla_put_failure;
7630 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
7631 drv->ssid_len = params->ssid_len;
7632 }
7633 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
7634 if (params->wpa_ie)
7635 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
7636 params->wpa_ie);
7637
3f360238
JM		 7638 algs = 0;
7639 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
7640 algs++;
7641 if (params->auth_alg & WPA_AUTH_ALG_SHARED)
7642 algs++;
7643 if (params->auth_alg & WPA_AUTH_ALG_LEAP)
7644 algs++;
7645 if (algs > 1) {
7646 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic "
7647 "selection");
7648 goto skip_auth_type;
7649 }
7650
abd9fafa 7651 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
cfaab580 7652 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
abd9fafa 7653 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
cfaab580 7654 type = NL80211_AUTHTYPE_SHARED_KEY;
abd9fafa 7655 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
cfaab580 7656 type = NL80211_AUTHTYPE_NETWORK_EAP;
abd9fafa 7657 else if (params->auth_alg & WPA_AUTH_ALG_FT)
cfaab580
ZY		 7658 type = NL80211_AUTHTYPE_FT;
7659 else
7660 goto nla_put_failure;
7661
7662 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
7663 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
7664
3f360238 7665skip_auth_type:
64fa840a
JM		 7666 if (params->wpa_proto) {
7667 enum nl80211_wpa_versions ver = 0;
cfaab580 7668
64fa840a
JM		 7669 if (params->wpa_proto & WPA_PROTO_WPA)
7670 ver |= NL80211_WPA_VERSION_1;
7671 if (params->wpa_proto & WPA_PROTO_RSN)
7672 ver |= NL80211_WPA_VERSION_2;
cfaab580 7673
64fa840a 7674 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver);
cfaab580
ZY		 7675 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
7676 }
7677
7678 if (params->pairwise_suite != CIPHER_NONE) {
c1bb3e0a 7679 int cipher;
cfaab580
ZY		 7680
7681 switch (params->pairwise_suite) {
369c8d7b
JM		 7682 case CIPHER_SMS4:
7683 cipher = WLAN_CIPHER_SUITE_SMS4;
7684 break;
cfaab580
ZY		 7685 case CIPHER_WEP40:
7686 cipher = WLAN_CIPHER_SUITE_WEP40;
7687 break;
7688 case CIPHER_WEP104:
7689 cipher = WLAN_CIPHER_SUITE_WEP104;
7690 break;
7691 case CIPHER_CCMP:
7692 cipher = WLAN_CIPHER_SUITE_CCMP;
7693 break;
eb7719ff
JM		 7694 case CIPHER_GCMP:
7695 cipher = WLAN_CIPHER_SUITE_GCMP;
7696 break;
cfaab580
ZY		 7697 case CIPHER_TKIP:
7698 default:
7699 cipher = WLAN_CIPHER_SUITE_TKIP;
7700 break;
7701 }
7702 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
7703 }
7704
7705 if (params->group_suite != CIPHER_NONE) {
c1bb3e0a 7706 int cipher;
cfaab580
ZY		 7707
7708 switch (params->group_suite) {
369c8d7b
JM		 7709 case CIPHER_SMS4:
7710 cipher = WLAN_CIPHER_SUITE_SMS4;
7711 break;
cfaab580
ZY		 7712 case CIPHER_WEP40:
7713 cipher = WLAN_CIPHER_SUITE_WEP40;
7714 break;
7715 case CIPHER_WEP104:
7716 cipher = WLAN_CIPHER_SUITE_WEP104;
7717 break;
7718 case CIPHER_CCMP:
7719 cipher = WLAN_CIPHER_SUITE_CCMP;
7720 break;
eb7719ff
JM		 7721 case CIPHER_GCMP:
7722 cipher = WLAN_CIPHER_SUITE_GCMP;
7723 break;
cfaab580
ZY		 7724 case CIPHER_TKIP:
7725 default:
7726 cipher = WLAN_CIPHER_SUITE_TKIP;
7727 break;
7728 }
7729 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
7730 }
7731
7732 if (params->key_mgmt_suite == KEY_MGMT_802_1X ||
369c8d7b 7733 params->key_mgmt_suite == KEY_MGMT_PSK ||
6a1ce395
DG		 7734 params->key_mgmt_suite == KEY_MGMT_FT_802_1X ||
7735 params->key_mgmt_suite == KEY_MGMT_FT_PSK ||
369c8d7b 7736 params->key_mgmt_suite == KEY_MGMT_CCKM) {
cfaab580
ZY		 7737 int mgmt = WLAN_AKM_SUITE_PSK;
7738
7739 switch (params->key_mgmt_suite) {
369c8d7b
JM		 7740 case KEY_MGMT_CCKM:
7741 mgmt = WLAN_AKM_SUITE_CCKM;
7742 break;
cfaab580
ZY		 7743 case KEY_MGMT_802_1X:
7744 mgmt = WLAN_AKM_SUITE_8021X;
7745 break;
6a1ce395
DG		 7746 case KEY_MGMT_FT_802_1X:
7747 mgmt = WLAN_AKM_SUITE_FT_8021X;
7748 break;
7749 case KEY_MGMT_FT_PSK:
7750 mgmt = WLAN_AKM_SUITE_FT_PSK;
7751 break;
cfaab580
ZY		 7752 case KEY_MGMT_PSK:
7753 default:
7754 mgmt = WLAN_AKM_SUITE_PSK;
7755 break;
7756 }
7757 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt);
7758 }
7759
8b706a99
JM		 7760#ifdef CONFIG_IEEE80211W
7761 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED)
7762 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED);
7763#endif /* CONFIG_IEEE80211W */
7764
80e8a5ee
BG		 7765 if (params->disable_ht)
7766 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT);
7767
7768 if (params->htcaps && params->htcaps_mask) {
7769 int sz = sizeof(struct ieee80211_ht_capabilities);
7770 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps);
7771 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz,
7772 params->htcaps_mask);
7773 }
7774
e9ee8dc3
JB		 7775#ifdef CONFIG_VHT_OVERRIDES
7776 if (params->disable_vht) {
7777 wpa_printf(MSG_DEBUG, " * VHT disabled");
7778 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT);
7779 }
7780
7781 if (params->vhtcaps && params->vhtcaps_mask) {
7782 int sz = sizeof(struct ieee80211_vht_capabilities);
7783 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps);
7784 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz,
7785 params->vhtcaps_mask);
7786 }
7787#endif /* CONFIG_VHT_OVERRIDES */
7788
cfaab580
ZY		 7789 ret = nl80211_set_conn_keys(params, msg);
7790 if (ret)
7791 goto nla_put_failure;
7792
7793 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7794 msg = NULL;
7795 if (ret) {
7796 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d "
7797 "(%s)", ret, strerror(-ret));
7798 goto nla_put_failure;
7799 }
7800 ret = 0;
7801 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully");
7802
7803nla_put_failure:
7804 nlmsg_free(msg);
7805 return ret;
7806
7807}
7808
7809
a8c5b43a
CW		 7810static int wpa_driver_nl80211_connect(
7811 struct wpa_driver_nl80211_data *drv,
7812 struct wpa_driver_associate_params *params)
7813{
7814 int ret = wpa_driver_nl80211_try_connect(drv, params);
7815 if (ret == -EALREADY) {
7816 /*
7817 * cfg80211 does not currently accept new connections if
7818 * we are already connected. As a workaround, force
7819 * disconnection and try again.
7820 */
7821 wpa_printf(MSG_DEBUG, "nl80211: Explicitly "
7822 "disconnecting before reassociation "
7823 "attempt");
7824 if (wpa_driver_nl80211_disconnect(
7825 drv, WLAN_REASON_PREV_AUTH_NOT_VALID))
7826 return -1;
7827 /* Ignore the next local disconnect message. */
7828 drv->ignore_next_local_disconnect = 1;
7829 ret = wpa_driver_nl80211_try_connect(drv, params);
7830 }
7831 return ret;
7832}
7833
7834
c2a04078
JM		 7835static int wpa_driver_nl80211_associate(
7836 void *priv, struct wpa_driver_associate_params *params)
7837{
a2e40bb6
FF		 7838 struct i802_bss *bss = priv;
7839 struct wpa_driver_nl80211_data *drv = bss->drv;
c2a04078
JM		 7840 int ret = -1;
7841 struct nl_msg *msg;
7842
5cc4d64b 7843 if (params->mode == IEEE80211_MODE_AP)
1581b38b 7844 return wpa_driver_nl80211_ap(drv, params);
1581b38b 7845
5cc4d64b
JM		 7846 if (params->mode == IEEE80211_MODE_IBSS)
7847 return wpa_driver_nl80211_ibss(drv, params);
7848
4a867032 7849 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) {
b1f625e0
EP		 7850 enum nl80211_iftype nlmode = params->p2p ?
7851 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
7852
7853 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0)
4a867032 7854 return -1;
cfaab580 7855 return wpa_driver_nl80211_connect(drv, params);
4a867032 7856 }
cfaab580 7857
add9b7a4 7858 nl80211_mark_disconnected(drv);
c2a04078
JM		 7859
7860 msg = nlmsg_alloc();
7861 if (!msg)
7862 return -1;
7863
7864 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)",
7865 drv->ifindex);
9fb04070 7866 nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE);
c2a04078
JM		 7867
7868 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
7869 if (params->bssid) {
7870 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
7871 MAC2STR(params->bssid));
7872 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
7873 }
7874 if (params->freq) {
7875 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
7876 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
4832ecd7
JM		 7877 drv->assoc_freq = params->freq;
7878 } else
7879 drv->assoc_freq = 0;
1f6c0ab8
BS		 7880 if (params->bg_scan_period >= 0) {
7881 wpa_printf(MSG_DEBUG, " * bg scan period=%d",
7882 params->bg_scan_period);
7883 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD,
7884 params->bg_scan_period);
7885 }
c2a04078
JM		 7886 if (params->ssid) {
7887 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
7888 params->ssid, params->ssid_len);
7889 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
7890 params->ssid);
fd05d64e
JM		 7891 if (params->ssid_len > sizeof(drv->ssid))
7892 goto nla_put_failure;
7893 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
7894 drv->ssid_len = params->ssid_len;
c2a04078
JM		 7895 }
7896 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
7897 if (params->wpa_ie)
7898 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
7899 params->wpa_ie);
7900
aca01605
JM		 7901 if (params->pairwise_suite != CIPHER_NONE) {
7902 int cipher;
7903
7904 switch (params->pairwise_suite) {
7905 case CIPHER_WEP40:
7906 cipher = WLAN_CIPHER_SUITE_WEP40;
7907 break;
7908 case CIPHER_WEP104:
7909 cipher = WLAN_CIPHER_SUITE_WEP104;
7910 break;
7911 case CIPHER_CCMP:
7912 cipher = WLAN_CIPHER_SUITE_CCMP;
7913 break;
eb7719ff
JM		 7914 case CIPHER_GCMP:
7915 cipher = WLAN_CIPHER_SUITE_GCMP;
7916 break;
aca01605
JM		 7917 case CIPHER_TKIP:
7918 default:
7919 cipher = WLAN_CIPHER_SUITE_TKIP;
7920 break;
7921 }
79c3124c 7922 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher);
aca01605
JM		 7923 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
7924 }
7925
7926 if (params->group_suite != CIPHER_NONE) {
7927 int cipher;
7928
7929 switch (params->group_suite) {
7930 case CIPHER_WEP40:
7931 cipher = WLAN_CIPHER_SUITE_WEP40;
7932 break;
7933 case CIPHER_WEP104:
7934 cipher = WLAN_CIPHER_SUITE_WEP104;
7935 break;
7936 case CIPHER_CCMP:
7937 cipher = WLAN_CIPHER_SUITE_CCMP;
7938 break;
eb7719ff
JM		 7939 case CIPHER_GCMP:
7940 cipher = WLAN_CIPHER_SUITE_GCMP;
7941 break;
aca01605
JM		 7942 case CIPHER_TKIP:
7943 default:
7944 cipher = WLAN_CIPHER_SUITE_TKIP;
7945 break;
7946 }
79c3124c 7947 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher);
aca01605
JM		 7948 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
7949 }
7950
e572fa33
JM		 7951#ifdef CONFIG_IEEE80211W
7952 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED)
7953 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED);
7954#endif /* CONFIG_IEEE80211W */
7955
01652550
JM		 7956 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
7957
62fa124c
JM		 7958 if (params->prev_bssid) {
7959 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR,
7960 MAC2STR(params->prev_bssid));
7961 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN,
7962 params->prev_bssid);
7963 }
7964
80e8a5ee
BG		 7965 if (params->disable_ht)
7966 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT);
7967
7968 if (params->htcaps && params->htcaps_mask) {
7969 int sz = sizeof(struct ieee80211_ht_capabilities);
7970 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps);
7971 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz,
7972 params->htcaps_mask);
7973 }
7974
e9ee8dc3
JB		 7975#ifdef CONFIG_VHT_OVERRIDES
7976 if (params->disable_vht) {
7977 wpa_printf(MSG_DEBUG, " * VHT disabled");
7978 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT);
7979 }
7980
7981 if (params->vhtcaps && params->vhtcaps_mask) {
7982 int sz = sizeof(struct ieee80211_vht_capabilities);
7983 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps);
7984 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz,
7985 params->vhtcaps_mask);
7986 }
7987#endif /* CONFIG_VHT_OVERRIDES */
7988
046b26a2
JM		 7989 if (params->p2p)
7990 wpa_printf(MSG_DEBUG, " * P2P group");
7991
c2a04078
JM		 7992 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7993 msg = NULL;
7994 if (ret) {
3b7ea880
BG		 7995 wpa_dbg(drv->ctx, MSG_DEBUG,
7996 "nl80211: MLME command failed (assoc): ret=%d (%s)",
7997 ret, strerror(-ret));
8856462d 7998 nl80211_dump_scan(drv);
c2a04078
JM		 7999 goto nla_put_failure;
8000 }
8001 ret = 0;
8002 wpa_printf(MSG_DEBUG, "nl80211: Association request send "
8003 "successfully");
8004
8005nla_put_failure:
8006 nlmsg_free(msg);
8007 return ret;
8008}
3f5285e8
JM		 8009
8010
ad1e68e6 8011static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv,
a1922f93 8012 int ifindex, enum nl80211_iftype mode)
3f5285e8 8013{
3f5285e8 8014 struct nl_msg *msg;
ad1e68e6
JM		 8015 int ret = -ENOBUFS;
8016
a1922f93
JM		 8017 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)",
8018 ifindex, mode, nl80211_iftype_str(mode));
8019
ad1e68e6
JM		 8020 msg = nlmsg_alloc();
8021 if (!msg)
8022 return -ENOMEM;
8023
9fb04070 8024 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE);
f632e483
AS		 8025 if (nl80211_set_iface_id(msg, &drv->first_bss) < 0)
8026 goto nla_put_failure;
ad1e68e6
JM		 8027 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode);
8028
8029 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5883168a 8030 msg = NULL;
ad1e68e6
JM		 8031 if (!ret)
8032 return 0;
8033nla_put_failure:
5883168a 8034 nlmsg_free(msg);
ad1e68e6
JM		 8035 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:"
8036 " %d (%s)", ifindex, mode, ret, strerror(-ret));
8037 return ret;
8038}
8039
8040
b1f625e0
EP		 8041static int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
8042 enum nl80211_iftype nlmode)
ad1e68e6 8043{
a2e40bb6 8044 struct wpa_driver_nl80211_data *drv = bss->drv;
ad1e68e6 8045 int ret = -1;
26af9dca 8046 int i;
86957e62 8047 int was_ap = is_ap_interface(drv->nlmode);
671a5039 8048 int res;
1581b38b 8049
671a5039 8050 res = nl80211_set_mode(drv, drv->ifindex, nlmode);
8e12685c
AS		 8051 if (res && nlmode == nl80211_get_ifmode(bss))
8052 res = 0;
8053
671a5039 8054 if (res == 0) {
ad1e68e6 8055 drv->nlmode = nlmode;
460456f8
JM		 8056 ret = 0;
8057 goto done;
ad1e68e6 8058 }
3f5285e8 8059
671a5039
JM		 8060 if (res == -ENODEV)
8061 return -1;
8062
460456f8 8063 if (nlmode == drv->nlmode) {
c6e8e8e4
JM		 8064 wpa_printf(MSG_DEBUG, "nl80211: Interface already in "
8065 "requested mode - ignore error");
460456f8
JM		 8066 ret = 0;
8067 goto done; /* Already in the requested mode */
8068 }
3f5285e8 8069
3f5285e8
JM		 8070 /* mac80211 doesn't allow mode changes while the device is up, so
8071 * take the device down, try to set the mode again, and bring the
8072 * device back up.
8073 */
26af9dca
JM		 8074 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting "
8075 "interface down");
8076 for (i = 0; i < 10; i++) {
91724d6f 8077 res = i802_set_iface_flags(bss, 0);
6e8183d7
JM		 8078 if (res == -EACCES || res == -ENODEV)
8079 break;
8080 if (res == 0) {
26af9dca
JM		 8081 /* Try to set the mode again while the interface is
8082 * down */
8083 ret = nl80211_set_mode(drv, drv->ifindex, nlmode);
6e8183d7
JM		 8084 if (ret == -EACCES)
8085 break;
91724d6f 8086 res = i802_set_iface_flags(bss, 1);
6e8183d7 8087 if (res && !ret)
26af9dca 8088 ret = -1;
6e8183d7 8089 else if (ret != -EBUSY)
26af9dca
JM		 8090 break;
8091 } else
8092 wpa_printf(MSG_DEBUG, "nl80211: Failed to set "
8093 "interface down");
8094 os_sleep(0, 100000);
3f5285e8
JM		 8095 }
8096
c6e8e8e4
JM		 8097 if (!ret) {
8098 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while "
8099 "interface is down");
ad1e68e6 8100 drv->nlmode = nlmode;
7d9c3698 8101 drv->ignore_if_down_event = 1;
c6e8e8e4 8102 }
ad1e68e6 8103
460456f8 8104done:
3fd1cefb
JB		 8105 if (ret) {
8106 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d "
8107 "from %d failed", nlmode, drv->nlmode);
8108 return ret;
8109 }
8110
6a71413e 8111 if (is_p2p_net_interface(nlmode))
edb9bfba 8112 nl80211_disable_11b_rates(drv, drv->ifindex, 1);
1d0c6fb1
JM		 8113 else if (drv->disabled_11b_rates)
8114 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
edb9bfba 8115
3fd1cefb 8116 if (is_ap_interface(nlmode)) {
36488c05 8117 nl80211_mgmt_unsubscribe(bss, "start AP");
460456f8 8118 /* Setup additional AP mode functionality if needed */
3fd1cefb 8119 if (nl80211_setup_ap(bss))
460456f8 8120 return -1;
3fd1cefb 8121 } else if (was_ap) {
460456f8 8122 /* Remove additional AP mode functionality */
3fd1cefb 8123 nl80211_teardown_ap(bss);
a11241fa 8124 } else {
36488c05 8125 nl80211_mgmt_unsubscribe(bss, "mode change");
460456f8 8126 }
460456f8 8127
873d0fcf 8128 if (!bss->in_deinit && !is_ap_interface(nlmode) &&
a11241fa
JB		 8129 nl80211_mgmt_subscribe_non_ap(bss) < 0)
8130 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action "
8131 "frame processing - ignore for now");
08359050 8132
3fd1cefb 8133 return 0;
3f5285e8
JM		 8134}
8135
8136
3f5285e8
JM		 8137static int wpa_driver_nl80211_get_capa(void *priv,
8138 struct wpa_driver_capa *capa)
8139{
a2e40bb6
FF		 8140 struct i802_bss *bss = priv;
8141 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8
JM		 8142 if (!drv->has_capability)
8143 return -1;
8144 os_memcpy(capa, &drv->capa, sizeof(*capa));
8cd6b7bc
JB		 8145 if (drv->extended_capa && drv->extended_capa_mask) {
8146 capa->extended_capa = drv->extended_capa;
8147 capa->extended_capa_mask = drv->extended_capa_mask;
8148 capa->extended_capa_len = drv->extended_capa_len;
8149 }
3f5285e8
JM		 8150 return 0;
8151}
8152
8153
8154static int wpa_driver_nl80211_set_operstate(void *priv, int state)
8155{
a2e40bb6
FF		 8156 struct i802_bss *bss = priv;
8157 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8
JM		 8158
8159 wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)",
8160 __func__, drv->operstate, state, state ? "UP" : "DORMANT");
8161 drv->operstate = state;
36d84860 8162 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1,
e2d02c29 8163 state ? IF_OPER_UP : IF_OPER_DORMANT);
3f5285e8
JM		 8164}
8165
01652550
JM		 8166
8167static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized)
8168{
a2e40bb6
FF		 8169 struct i802_bss *bss = priv;
8170 struct wpa_driver_nl80211_data *drv = bss->drv;
01652550
JM		 8171 struct nl_msg *msg;
8172 struct nl80211_sta_flag_update upd;
8173
1ba51ec0
JM		 8174 wpa_printf(MSG_DEBUG, "nl80211: Set supplicant port %sauthorized for "
8175 MACSTR, authorized ? "" : "un", MAC2STR(drv->bssid));
8176
01652550
JM		 8177 msg = nlmsg_alloc();
8178 if (!msg)
8179 return -ENOMEM;
8180
9fb04070 8181 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
01652550
JM		 8182
8183 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 8184 if_nametoindex(bss->ifname));
01652550
JM		 8185 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
8186
8187 os_memset(&upd, 0, sizeof(upd));
8188 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED);
8189 if (authorized)
8190 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED);
8191 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
8192
8193 return send_and_recv_msgs(drv, msg, NULL, NULL);
8194 nla_put_failure:
5883168a 8195 nlmsg_free(msg);
01652550
JM		 8196 return -ENOBUFS;
8197}
8198
3f5285e8 8199
f07ead6a
JM		 8200/* Set kernel driver on given frequency (MHz) */
8201static int i802_set_freq(void *priv, struct hostapd_freq_params *freq)
c5121837 8202{
f07ead6a 8203 struct i802_bss *bss = priv;
89b800d7 8204 return wpa_driver_nl80211_set_freq(bss, freq);
c5121837
JM		 8205}
8206
f7b3920c
JM		 8207
8208#if defined(HOSTAPD) || defined(CONFIG_AP)
c5121837 8209
c5121837
JM		 8210static inline int min_int(int a, int b)
8211{
8212 if (a < b)
8213 return a;
8214 return b;
8215}
8216
8217
8218static int get_key_handler(struct nl_msg *msg, void *arg)
8219{
8220 struct nlattr *tb[NL80211_ATTR_MAX + 1];
8221 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
8222
8223 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
8224 genlmsg_attrlen(gnlh, 0), NULL);
8225
8226 /*
8227 * TODO: validate the key index and mac address!
8228 * Otherwise, there's a race condition as soon as
8229 * the kernel starts sending key notifications.
8230 */
8231
8232 if (tb[NL80211_ATTR_KEY_SEQ])
8233 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]),
8234 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6));
8235 return NL_SKIP;
8236}
8237
8238
8239static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
8240 int idx, u8 *seq)
8241{
a2e40bb6
FF		 8242 struct i802_bss *bss = priv;
8243 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 8244 struct nl_msg *msg;
8245
8246 msg = nlmsg_alloc();
8247 if (!msg)
8248 return -ENOMEM;
8249
9fb04070 8250 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY);
c5121837
JM		 8251
8252 if (addr)
8253 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
8254 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
8255 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
8256
8257 memset(seq, 0, 6);
8258
8259 return send_and_recv_msgs(drv, msg, get_key_handler, seq);
8260 nla_put_failure:
9e088e74 8261 nlmsg_free(msg);
c5121837
JM		 8262 return -ENOBUFS;
8263}
8264
8265
c5121837
JM		 8266static int i802_set_rts(void *priv, int rts)
8267{
a2e40bb6
FF		 8268 struct i802_bss *bss = priv;
8269 struct wpa_driver_nl80211_data *drv = bss->drv;
ad649451
JM		 8270 struct nl_msg *msg;
8271 int ret = -ENOBUFS;
8272 u32 val;
c5121837 8273
ad649451
JM		 8274 msg = nlmsg_alloc();
8275 if (!msg)
8276 return -ENOMEM;
c5121837 8277
ad649451
JM		 8278 if (rts >= 2347)
8279 val = (u32) -1;
8280 else
8281 val = rts;
c5121837 8282
9fb04070 8283 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
ad649451
JM		 8284 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8285 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val);
8286
8287 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5883168a 8288 msg = NULL;
ad649451
JM		 8289 if (!ret)
8290 return 0;
8291nla_put_failure:
5883168a 8292 nlmsg_free(msg);
ad649451
JM		 8293 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: "
8294 "%d (%s)", rts, ret, strerror(-ret));
8295 return ret;
c5121837
JM		 8296}
8297
8298
8299static int i802_set_frag(void *priv, int frag)
8300{
a2e40bb6
FF		 8301 struct i802_bss *bss = priv;
8302 struct wpa_driver_nl80211_data *drv = bss->drv;
ad649451
JM		 8303 struct nl_msg *msg;
8304 int ret = -ENOBUFS;
8305 u32 val;
c5121837 8306
ad649451
JM		 8307 msg = nlmsg_alloc();
8308 if (!msg)
8309 return -ENOMEM;
c5121837 8310
ad649451
JM		 8311 if (frag >= 2346)
8312 val = (u32) -1;
8313 else
8314 val = frag;
c5121837 8315
9fb04070 8316 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
ad649451
JM		 8317 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8318 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val);
8319
8320 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5883168a 8321 msg = NULL;
ad649451
JM		 8322 if (!ret)
8323 return 0;
8324nla_put_failure:
5883168a 8325 nlmsg_free(msg);
ad649451
JM		 8326 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold "
8327 "%d: %d (%s)", frag, ret, strerror(-ret));
8328 return ret;
c5121837
JM		 8329}
8330
8331
c5121837
JM		 8332static int i802_flush(void *priv)
8333{
a2e40bb6
FF		 8334 struct i802_bss *bss = priv;
8335 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837 8336 struct nl_msg *msg;
82554b10 8337 int res;
c5121837
JM		 8338
8339 msg = nlmsg_alloc();
8340 if (!msg)
8341 return -1;
8342
9fb04070 8343 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION);
c5121837
JM		 8344
8345 /*
8346 * XXX: FIX! this needs to flush all VLANs too
8347 */
8348 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 8349 if_nametoindex(bss->ifname));
c5121837 8350
82554b10
JM		 8351 res = send_and_recv_msgs(drv, msg, NULL, NULL);
8352 if (res) {
8353 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d "
8354 "(%s)", res, strerror(-res));
8355 }
8356 return res;
c5121837 8357 nla_put_failure:
9e088e74 8358 nlmsg_free(msg);
c5121837
JM		 8359 return -ENOBUFS;
8360}
8361
d732463c
JM		 8362#endif /* HOSTAPD || CONFIG_AP */
8363
c5121837
JM		 8364
8365static int get_sta_handler(struct nl_msg *msg, void *arg)
8366{
8367 struct nlattr *tb[NL80211_ATTR_MAX + 1];
8368 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
8369 struct hostap_sta_driver_data *data = arg;
8370 struct nlattr *stats[NL80211_STA_INFO_MAX + 1];
8371 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
8372 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
8373 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
8374 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
8375 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
8376 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
dc7785f8 8377 [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 },
c5121837
JM		 8378 };
8379
8380 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
8381 genlmsg_attrlen(gnlh, 0), NULL);
8382
8383 /*
8384 * TODO: validate the interface and mac address!
8385 * Otherwise, there's a race condition as soon as
8386 * the kernel starts sending station notifications.
8387 */
8388
8389 if (!tb[NL80211_ATTR_STA_INFO]) {
8390 wpa_printf(MSG_DEBUG, "sta stats missing!");
8391 return NL_SKIP;
8392 }
8393 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX,
8394 tb[NL80211_ATTR_STA_INFO],
8395 stats_policy)) {
8396 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!");
8397 return NL_SKIP;
8398 }
8399
8400 if (stats[NL80211_STA_INFO_INACTIVE_TIME])
8401 data->inactive_msec =
8402 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]);
8403 if (stats[NL80211_STA_INFO_RX_BYTES])
8404 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]);
8405 if (stats[NL80211_STA_INFO_TX_BYTES])
8406 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]);
8407 if (stats[NL80211_STA_INFO_RX_PACKETS])
8408 data->rx_packets =
8409 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]);
8410 if (stats[NL80211_STA_INFO_TX_PACKETS])
8411 data->tx_packets =
8412 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]);
dc7785f8
YZ		 8413 if (stats[NL80211_STA_INFO_TX_FAILED])
8414 data->tx_retry_failed =
8415 nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]);
c5121837
JM		 8416
8417 return NL_SKIP;
8418}
8419
9ebce9c5
JM		 8420static int i802_read_sta_data(struct i802_bss *bss,
8421 struct hostap_sta_driver_data *data,
c5121837
JM		 8422 const u8 *addr)
8423{
a2e40bb6 8424 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 8425 struct nl_msg *msg;
8426
8427 os_memset(data, 0, sizeof(*data));
8428 msg = nlmsg_alloc();
8429 if (!msg)
8430 return -ENOMEM;
8431
9fb04070 8432 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION);
c5121837
JM		 8433
8434 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
a2e40bb6 8435 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
c5121837
JM		 8436
8437 return send_and_recv_msgs(drv, msg, get_sta_handler, data);
8438 nla_put_failure:
9e088e74 8439 nlmsg_free(msg);
c5121837
JM		 8440 return -ENOBUFS;
8441}
8442
8443
d732463c
JM		 8444#if defined(HOSTAPD) || defined(CONFIG_AP)
8445
c5121837
JM		 8446static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
8447 int cw_min, int cw_max, int burst_time)
8448{
a2e40bb6
FF		 8449 struct i802_bss *bss = priv;
8450 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 8451 struct nl_msg *msg;
8452 struct nlattr *txq, *params;
8453
8454 msg = nlmsg_alloc();
8455 if (!msg)
8456 return -1;
8457
9fb04070 8458 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
c5121837 8459
a2e40bb6 8460 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
c5121837
JM		 8461
8462 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS);
8463 if (!txq)
8464 goto nla_put_failure;
8465
8466 /* We are only sending parameters for a single TXQ at a time */
8467 params = nla_nest_start(msg, 1);
8468 if (!params)
8469 goto nla_put_failure;
8470
7e3c1781
JM		 8471 switch (queue) {
8472 case 0:
8473 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO);
8474 break;
8475 case 1:
8476 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI);
8477 break;
8478 case 2:
8479 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE);
8480 break;
8481 case 3:
8482 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK);
8483 break;
8484 }
c5121837
JM		 8485 /* Burst time is configured in units of 0.1 msec and TXOP parameter in
8486 * 32 usec, so need to convert the value here. */
8487 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32);
8488 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min);
8489 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max);
8490 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs);
8491
8492 nla_nest_end(msg, params);
8493
8494 nla_nest_end(msg, txq);
8495
8496 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
8497 return 0;
9e088e74 8498 msg = NULL;
c5121837 8499 nla_put_failure:
9e088e74 8500 nlmsg_free(msg);
c5121837
JM		 8501 return -1;
8502}
8503
8504
9ebce9c5 8505static int i802_set_sta_vlan(struct i802_bss *bss, const u8 *addr,
c5121837
JM		 8506 const char *ifname, int vlan_id)
8507{
a2e40bb6 8508 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837 8509 struct nl_msg *msg;
cd1d72c1 8510 int ret = -ENOBUFS;
c5121837
JM		 8511
8512 msg = nlmsg_alloc();
8513 if (!msg)
8514 return -ENOMEM;
8515
9fb04070 8516 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
c5121837
JM		 8517
8518 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 8519 if_nametoindex(bss->ifname));
c5121837 8520 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
1c766b09 8521 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN,
c5121837
JM		 8522 if_nametoindex(ifname));
8523
cd1d72c1 8524 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
9e088e74 8525 msg = NULL;
cd1d72c1
JM		 8526 if (ret < 0) {
8527 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr="
8528 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)",
8529 MAC2STR(addr), ifname, vlan_id, ret,
8530 strerror(-ret));
8531 }
c5121837 8532 nla_put_failure:
9e088e74 8533 nlmsg_free(msg);
cd1d72c1 8534 return ret;
c5121837
JM		 8535}
8536
fbbfcbac 8537
c5121837
JM		 8538static int i802_get_inact_sec(void *priv, const u8 *addr)
8539{
8540 struct hostap_sta_driver_data data;
8541 int ret;
8542
8543 data.inactive_msec = (unsigned long) -1;
8544 ret = i802_read_sta_data(priv, &data, addr);
8545 if (ret || data.inactive_msec == (unsigned long) -1)
8546 return -1;
8547 return data.inactive_msec / 1000;
8548}
8549
8550
8551static int i802_sta_clear_stats(void *priv, const u8 *addr)
8552{
8553#if 0
8554 /* TODO */
8555#endif
8556 return 0;
8557}
8558
8559
731723a5
JM		 8560static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
8561 int reason)
c5121837 8562{
a2e40bb6 8563 struct i802_bss *bss = priv;
e1bd4e19 8564 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 8565 struct ieee80211_mgmt mgmt;
8566
e1bd4e19
AT		 8567 if (drv->device_ap_sme)
8568 return wpa_driver_nl80211_sta_remove(bss, addr);
8569
c5121837
JM		 8570 memset(&mgmt, 0, sizeof(mgmt));
8571 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
8572 WLAN_FC_STYPE_DEAUTH);
8573 memcpy(mgmt.da, addr, ETH_ALEN);
731723a5
JM		 8574 memcpy(mgmt.sa, own_addr, ETH_ALEN);
8575 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
c5121837 8576 mgmt.u.deauth.reason_code = host_to_le16(reason);
a2e40bb6 8577 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
9f324b61 8578 IEEE80211_HDRLEN +
9ebce9c5
JM		 8579 sizeof(mgmt.u.deauth), 0, 0, 0, 0,
8580 0);
c5121837
JM		 8581}
8582
8583
731723a5
JM		 8584static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
8585 int reason)
c5121837 8586{
a2e40bb6 8587 struct i802_bss *bss = priv;
e1bd4e19 8588 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 8589 struct ieee80211_mgmt mgmt;
8590
e1bd4e19
AT		 8591 if (drv->device_ap_sme)
8592 return wpa_driver_nl80211_sta_remove(bss, addr);
8593
c5121837
JM		 8594 memset(&mgmt, 0, sizeof(mgmt));
8595 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
8596 WLAN_FC_STYPE_DISASSOC);
8597 memcpy(mgmt.da, addr, ETH_ALEN);
731723a5
JM		 8598 memcpy(mgmt.sa, own_addr, ETH_ALEN);
8599 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
c5121837 8600 mgmt.u.disassoc.reason_code = host_to_le16(reason);
a2e40bb6 8601 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
9f324b61 8602 IEEE80211_HDRLEN +
9ebce9c5
JM		 8603 sizeof(mgmt.u.disassoc), 0, 0, 0, 0,
8604 0);
c5121837
JM		 8605}
8606
ee7ab173
JB		 8607#endif /* HOSTAPD || CONFIG_AP */
8608
8609#ifdef HOSTAPD
c5121837 8610
f07ead6a
JM		 8611static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
8612{
8613 int i;
8614 int *old;
8615
8616 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d",
8617 ifidx);
8618 for (i = 0; i < drv->num_if_indices; i++) {
8619 if (drv->if_indices[i] == 0) {
8620 drv->if_indices[i] = ifidx;
8621 return;
8622 }
8623 }
8624
8625 if (drv->if_indices != drv->default_if_indices)
8626 old = drv->if_indices;
8627 else
8628 old = NULL;
8629
067ffa26
JM		 8630 drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1,
8631 sizeof(int));
f07ead6a
JM		 8632 if (!drv->if_indices) {
8633 if (!old)
8634 drv->if_indices = drv->default_if_indices;
8635 else
8636 drv->if_indices = old;
8637 wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
8638 "interfaces");
8639 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
8640 return;
8641 } else if (!old)
8642 os_memcpy(drv->if_indices, drv->default_if_indices,
8643 sizeof(drv->default_if_indices));
8644 drv->if_indices[drv->num_if_indices] = ifidx;
8645 drv->num_if_indices++;
8646}
8647
8648
8649static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
8650{
8651 int i;
8652
8653 for (i = 0; i < drv->num_if_indices; i++) {
8654 if (drv->if_indices[i] == ifidx) {
8655 drv->if_indices[i] = 0;
8656 break;
8657 }
8658 }
8659}
8660
8661
8662static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
8663{
8664 int i;
8665
8666 for (i = 0; i < drv->num_if_indices; i++)
8667 if (drv->if_indices[i] == ifidx)
8668 return 1;
8669
8670 return 0;
8671}
8672
8673
8674static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val,
8675 const char *bridge_ifname)
8676{
8677 struct i802_bss *bss = priv;
8678 struct wpa_driver_nl80211_data *drv = bss->drv;
8679 char name[IFNAMSIZ + 1];
8680
8681 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid);
8682 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR
8683 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name);
8684 if (val) {
8685 if (!if_nametoindex(name)) {
8686 if (nl80211_create_iface(drv, name,
8687 NL80211_IFTYPE_AP_VLAN,
d6dcfcda 8688 bss->addr, 1, NULL, NULL) < 0)
f07ead6a
JM		 8689 return -1;
8690 if (bridge_ifname &&
c81eff1a
BG		 8691 linux_br_add_if(drv->global->ioctl_sock,
8692 bridge_ifname, name) < 0)
f07ead6a
JM		 8693 return -1;
8694 }
75227f3a
JM		 8695 if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) {
8696 wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA "
8697 "interface %s up", name);
8698 }
f07ead6a
JM		 8699 return i802_set_sta_vlan(priv, addr, name, 0);
8700 } else {
c34e618d
FF		 8701 if (bridge_ifname)
8702 linux_br_del_if(drv->global->ioctl_sock, bridge_ifname,
8703 name);
8704
f07ead6a
JM		 8705 i802_set_sta_vlan(priv, addr, bss->ifname, 0);
8706 return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN,
8707 name);
8708 }
8709}
8710
8711
8712static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
8713{
8714 struct wpa_driver_nl80211_data *drv = eloop_ctx;
8715 struct sockaddr_ll lladdr;
8716 unsigned char buf[3000];
8717 int len;
8718 socklen_t fromlen = sizeof(lladdr);
8719
8720 len = recvfrom(sock, buf, sizeof(buf), 0,
8721 (struct sockaddr *)&lladdr, &fromlen);
8722 if (len < 0) {
8723 perror("recv");
8724 return;
8725 }
8726
8727 if (have_ifidx(drv, lladdr.sll_ifindex))
8728 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len);
8729}
8730
8731
94627f6c 8732static int i802_check_bridge(struct wpa_driver_nl80211_data *drv,
e17a2477 8733 struct i802_bss *bss,
94627f6c
JM		 8734 const char *brname, const char *ifname)
8735{
8736 int ifindex;
8737 char in_br[IFNAMSIZ];
8738
e17a2477 8739 os_strlcpy(bss->brname, brname, IFNAMSIZ);
94627f6c
JM		 8740 ifindex = if_nametoindex(brname);
8741 if (ifindex == 0) {
8742 /*
8743 * Bridge was configured, but the bridge device does
8744 * not exist. Try to add it now.
8745 */
c81eff1a 8746 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) {
94627f6c
JM		 8747 wpa_printf(MSG_ERROR, "nl80211: Failed to add the "
8748 "bridge interface %s: %s",
8749 brname, strerror(errno));
8750 return -1;
8751 }
e17a2477 8752 bss->added_bridge = 1;
94627f6c
JM		 8753 add_ifidx(drv, if_nametoindex(brname));
8754 }
8755
8756 if (linux_br_get(in_br, ifname) == 0) {
8757 if (os_strcmp(in_br, brname) == 0)
8758 return 0; /* already in the bridge */
8759
8760 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from "
8761 "bridge %s", ifname, in_br);
c81eff1a
BG		 8762 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) <
8763 0) {
94627f6c
JM		 8764 wpa_printf(MSG_ERROR, "nl80211: Failed to "
8765 "remove interface %s from bridge "
8766 "%s: %s",
8767 ifname, brname, strerror(errno));
8768 return -1;
8769 }
8770 }
8771
8772 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s",
8773 ifname, brname);
c81eff1a 8774 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) {
94627f6c
JM		 8775 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s "
8776 "into bridge %s: %s",
8777 ifname, brname, strerror(errno));
8778 return -1;
8779 }
e17a2477 8780 bss->added_if_into_bridge = 1;
94627f6c
JM		 8781
8782 return 0;
8783}
8784
8785
92f475b4
JM		 8786static void *i802_init(struct hostapd_data *hapd,
8787 struct wpa_init_params *params)
c5121837
JM		 8788{
8789 struct wpa_driver_nl80211_data *drv;
a2e40bb6 8790 struct i802_bss *bss;
c5121837 8791 size_t i;
94627f6c
JM		 8792 char brname[IFNAMSIZ];
8793 int ifindex, br_ifindex;
8794 int br_added = 0;
c5121837 8795
4b24282a
JM		 8796 bss = wpa_driver_nl80211_init(hapd, params->ifname,
8797 params->global_priv);
a2e40bb6 8798 if (bss == NULL)
c5121837 8799 return NULL;
c5121837 8800
a2e40bb6 8801 drv = bss->drv;
0382097e 8802 drv->nlmode = NL80211_IFTYPE_AP;
7635bfb0
JB		 8803 drv->eapol_sock = -1;
8804
94627f6c
JM		 8805 if (linux_br_get(brname, params->ifname) == 0) {
8806 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s",
8807 params->ifname, brname);
8808 br_ifindex = if_nametoindex(brname);
8809 } else {
8810 brname[0] = '\0';
8811 br_ifindex = 0;
8812 }
8813
c5121837
JM		 8814 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
8815 drv->if_indices = drv->default_if_indices;
92f475b4 8816 for (i = 0; i < params->num_bridge; i++) {
94627f6c
JM		 8817 if (params->bridge[i]) {
8818 ifindex = if_nametoindex(params->bridge[i]);
8819 if (ifindex)
8820 add_ifidx(drv, ifindex);
8821 if (ifindex == br_ifindex)
8822 br_added = 1;
8823 }
c5121837 8824 }
94627f6c
JM		 8825 if (!br_added && br_ifindex &&
8826 (params->num_bridge == 0 || !params->bridge[0]))
8827 add_ifidx(drv, br_ifindex);
c5121837 8828
ad1e68e6
JM		 8829 /* start listening for EAPOL on the default AP interface */
8830 add_ifidx(drv, drv->ifindex);
8831
c81eff1a 8832 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0))
6980c191 8833 goto failed;
ad1e68e6 8834
6980c191 8835 if (params->bssid) {
c81eff1a 8836 if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
2ac9688e 8837 params->bssid))
460456f8
JM		 8838 goto failed;
8839 }
ad1e68e6 8840
b1f625e0 8841 if (wpa_driver_nl80211_set_mode(bss, drv->nlmode)) {
ad1e68e6 8842 wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s "
a2e40bb6 8843 "into AP mode", bss->ifname);
bbaf0837 8844 goto failed;
ad1e68e6
JM		 8845 }
8846
94627f6c 8847 if (params->num_bridge && params->bridge[0] &&
e17a2477 8848 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0)
94627f6c
JM		 8849 goto failed;
8850
c81eff1a 8851 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1))
bbaf0837 8852 goto failed;
ad1e68e6
JM		 8853
8854 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE));
8855 if (drv->eapol_sock < 0) {
8856 perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)");
bbaf0837 8857 goto failed;
ad1e68e6
JM		 8858 }
8859
8860 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL))
8861 {
8862 printf("Could not register read socket for eapol\n");
c5121837 8863 goto failed;
ad1e68e6
JM		 8864 }
8865
c81eff1a
BG		 8866 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
8867 params->own_addr))
bbaf0837 8868 goto failed;
c5121837 8869
341eebee
JB		 8870 memcpy(bss->addr, params->own_addr, ETH_ALEN);
8871
a2e40bb6 8872 return bss;
c5121837
JM		 8873
8874failed:
7635bfb0 8875 wpa_driver_nl80211_deinit(bss);
bbaf0837
JM		 8876 return NULL;
8877}
c5121837 8878
c5121837 8879
bbaf0837
JM		 8880static void i802_deinit(void *priv)
8881{
9ebce9c5
JM		 8882 struct i802_bss *bss = priv;
8883 wpa_driver_nl80211_deinit(bss);
c5121837
JM		 8884}
8885
8886#endif /* HOSTAPD */
8887
8888
22a7c9d7
JM		 8889static enum nl80211_iftype wpa_driver_nl80211_if_type(
8890 enum wpa_driver_if_type type)
8891{
8892 switch (type) {
8893 case WPA_IF_STATION:
9f51b113 8894 return NL80211_IFTYPE_STATION;
75bde05d
JM		 8895 case WPA_IF_P2P_CLIENT:
8896 case WPA_IF_P2P_GROUP:
9f51b113 8897 return NL80211_IFTYPE_P2P_CLIENT;
22a7c9d7
JM		 8898 case WPA_IF_AP_VLAN:
8899 return NL80211_IFTYPE_AP_VLAN;
8900 case WPA_IF_AP_BSS:
8901 return NL80211_IFTYPE_AP;
9f51b113
JB		 8902 case WPA_IF_P2P_GO:
8903 return NL80211_IFTYPE_P2P_GO;
7aad838c
NS		 8904 case WPA_IF_P2P_DEVICE:
8905 return NL80211_IFTYPE_P2P_DEVICE;
22a7c9d7
JM		 8906 }
8907 return -1;
8908}
8909
8910
482856c8
JM		 8911#ifdef CONFIG_P2P
8912
f2ed8023
JM		 8913static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr)
8914{
8915 struct wpa_driver_nl80211_data *drv;
8916 dl_list_for_each(drv, &global->interfaces,
8917 struct wpa_driver_nl80211_data, list) {
341eebee 8918 if (os_memcmp(addr, drv->first_bss.addr, ETH_ALEN) == 0)
f2ed8023
JM		 8919 return 1;
8920 }
8921 return 0;
8922}
8923
8924
8925static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv,
8926 u8 *new_addr)
8927{
8928 unsigned int idx;
8929
8930 if (!drv->global)
8931 return -1;
8932
341eebee 8933 os_memcpy(new_addr, drv->first_bss.addr, ETH_ALEN);
f2ed8023 8934 for (idx = 0; idx < 64; idx++) {
341eebee 8935 new_addr[0] = drv->first_bss.addr[0] | 0x02;
f2ed8023
JM		 8936 new_addr[0] ^= idx << 2;
8937 if (!nl80211_addr_in_use(drv->global, new_addr))
8938 break;
8939 }
8940 if (idx == 64)
8941 return -1;
8942
8943 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address "
8944 MACSTR, MAC2STR(new_addr));
8945
8946 return 0;
8947}
8948
482856c8
JM		 8949#endif /* CONFIG_P2P */
8950
f2ed8023 8951
f632e483
AS		 8952struct wdev_info {
8953 u64 wdev_id;
8954 int wdev_id_set;
8955 u8 macaddr[ETH_ALEN];
8956};
8957
8958static int nl80211_wdev_handler(struct nl_msg *msg, void *arg)
e472e1b4
AS		 8959{
8960 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
8961 struct nlattr *tb[NL80211_ATTR_MAX + 1];
f632e483 8962 struct wdev_info *wi = arg;
e472e1b4
AS		 8963
8964 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
8965 genlmsg_attrlen(gnlh, 0), NULL);
8966 if (tb[NL80211_ATTR_WDEV]) {
f632e483
AS		 8967 wi->wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]);
8968 wi->wdev_id_set = 1;
e472e1b4
AS		 8969 }
8970
8971 if (tb[NL80211_ATTR_MAC])
f632e483 8972 os_memcpy(wi->macaddr, nla_data(tb[NL80211_ATTR_MAC]),
e472e1b4
AS		 8973 ETH_ALEN);
8974
8975 return NL_SKIP;
8976}
8977
8978
7ab68865 8979static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type,
8043e725 8980 const char *ifname, const u8 *addr,
f3585c8a 8981 void *bss_ctx, void **drv_priv,
e17a2477
JM		 8982 char *force_ifname, u8 *if_addr,
8983 const char *bridge)
22a7c9d7 8984{
e472e1b4 8985 enum nl80211_iftype nlmode;
a2e40bb6
FF		 8986 struct i802_bss *bss = priv;
8987 struct wpa_driver_nl80211_data *drv = bss->drv;
22a7c9d7
JM		 8988 int ifidx;
8989#ifdef HOSTAPD
a2e40bb6 8990 struct i802_bss *new_bss = NULL;
22a7c9d7
JM		 8991
8992 if (type == WPA_IF_AP_BSS) {
a2e40bb6
FF		 8993 new_bss = os_zalloc(sizeof(*new_bss));
8994 if (new_bss == NULL)
22a7c9d7
JM		 8995 return -1;
8996 }
8997#endif /* HOSTAPD */
8998
f3585c8a
JM		 8999 if (addr)
9000 os_memcpy(if_addr, addr, ETH_ALEN);
e472e1b4
AS		 9001 nlmode = wpa_driver_nl80211_if_type(type);
9002 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) {
f632e483
AS		 9003 struct wdev_info p2pdev_info;
9004
9005 os_memset(&p2pdev_info, 0, sizeof(p2pdev_info));
e472e1b4 9006 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr,
f632e483
AS		 9007 0, nl80211_wdev_handler,
9008 &p2pdev_info);
9009 if (!p2pdev_info.wdev_id_set || ifidx != 0) {
e472e1b4
AS		 9010 wpa_printf(MSG_ERROR, "nl80211: Failed to create a P2P Device interface %s",
9011 ifname);
e472e1b4
AS		 9012 return -1;
9013 }
f632e483
AS		 9014
9015 drv->global->if_add_wdevid = p2pdev_info.wdev_id;
9016 drv->global->if_add_wdevid_set = p2pdev_info.wdev_id_set;
9017 if (!is_zero_ether_addr(p2pdev_info.macaddr))
9018 os_memcpy(if_addr, p2pdev_info.macaddr, ETH_ALEN);
9019 wpa_printf(MSG_DEBUG, "nl80211: New P2P Device interface %s (0x%llx) created",
9020 ifname,
9021 (long long unsigned int) p2pdev_info.wdev_id);
e472e1b4
AS		 9022 } else {
9023 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr,
9024 0, NULL, NULL);
9025 if (ifidx < 0) {
22a7c9d7 9026#ifdef HOSTAPD
e472e1b4 9027 os_free(new_bss);
22a7c9d7 9028#endif /* HOSTAPD */
e472e1b4
AS		 9029 return -1;
9030 }
22a7c9d7
JM		 9031 }
9032
f3585c8a 9033 if (!addr &&
c81eff1a
BG		 9034 linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
9035 if_addr) < 0) {
c55f774d 9036 nl80211_remove_iface(drv, ifidx);
f3585c8a 9037 return -1;
c55f774d
JM		 9038 }
9039
9040#ifdef CONFIG_P2P
9041 if (!addr &&
9042 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP ||
9043 type == WPA_IF_P2P_GO)) {
9044 /* Enforce unique P2P Interface Address */
9045 u8 new_addr[ETH_ALEN], own_addr[ETH_ALEN];
9046
c81eff1a
BG		 9047 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
9048 own_addr) < 0 ||
9049 linux_get_ifhwaddr(drv->global->ioctl_sock, ifname,
9050 new_addr) < 0) {
c55f774d
JM		 9051 nl80211_remove_iface(drv, ifidx);
9052 return -1;
9053 }
9054 if (os_memcmp(own_addr, new_addr, ETH_ALEN) == 0) {
9055 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address "
9056 "for P2P group interface");
f2ed8023 9057 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) {
c55f774d
JM		 9058 nl80211_remove_iface(drv, ifidx);
9059 return -1;
9060 }
c81eff1a 9061 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname,
c55f774d
JM		 9062 new_addr) < 0) {
9063 nl80211_remove_iface(drv, ifidx);
9064 return -1;
9065 }
c55f774d 9066 }
f67eeb5c 9067 os_memcpy(if_addr, new_addr, ETH_ALEN);
c55f774d
JM		 9068 }
9069#endif /* CONFIG_P2P */
f3585c8a 9070
22a7c9d7 9071#ifdef HOSTAPD
e17a2477
JM		 9072 if (bridge &&
9073 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) {
9074 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new "
9075 "interface %s to a bridge %s", ifname, bridge);
9076 nl80211_remove_iface(drv, ifidx);
9077 os_free(new_bss);
9078 return -1;
9079 }
9080
22a7c9d7 9081 if (type == WPA_IF_AP_BSS) {
c81eff1a
BG		 9082 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1))
9083 {
34f2f814 9084 nl80211_remove_iface(drv, ifidx);
07179987 9085 os_free(new_bss);
22a7c9d7
JM		 9086 return -1;
9087 }
a2e40bb6 9088 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ);
341eebee 9089 os_memcpy(new_bss->addr, if_addr, ETH_ALEN);
a2e40bb6
FF		 9090 new_bss->ifindex = ifidx;
9091 new_bss->drv = drv;
9092 new_bss->next = drv->first_bss.next;
a7a6af4c 9093 new_bss->freq = drv->first_bss.freq;
a5e1eb20 9094 new_bss->ctx = bss_ctx;
a2e40bb6
FF		 9095 drv->first_bss.next = new_bss;
9096 if (drv_priv)
9097 *drv_priv = new_bss;
cc7a48d1 9098 nl80211_init_bss(new_bss);
3dd1d890
YAP		 9099
9100 /* Subscribe management frames for this WPA_IF_AP_BSS */
9101 if (nl80211_setup_ap(new_bss))
9102 return -1;
22a7c9d7
JM		 9103 }
9104#endif /* HOSTAPD */
9105
ff6a158b
JM		 9106 if (drv->global)
9107 drv->global->if_add_ifindex = ifidx;
9108
22a7c9d7
JM		 9109 return 0;
9110}
9111
9112
9ebce9c5 9113static int wpa_driver_nl80211_if_remove(struct i802_bss *bss,
22a7c9d7
JM		 9114 enum wpa_driver_if_type type,
9115 const char *ifname)
9116{
a2e40bb6 9117 struct wpa_driver_nl80211_data *drv = bss->drv;
22a7c9d7
JM		 9118 int ifindex = if_nametoindex(ifname);
9119
e748062b
JM		 9120 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d",
9121 __func__, type, ifname, ifindex);
9122 if (ifindex <= 0)
9123 return -1;
e17a2477 9124
c34e618d
FF		 9125 nl80211_remove_iface(drv, ifindex);
9126
e17a2477 9127#ifdef HOSTAPD
c34e618d
FF		 9128 if (type != WPA_IF_AP_BSS)
9129 return 0;
9130
e17a2477 9131 if (bss->added_if_into_bridge) {
c81eff1a
BG		 9132 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname,
9133 bss->ifname) < 0)
e17a2477
JM		 9134 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
9135 "interface %s from bridge %s: %s",
9136 bss->ifname, bss->brname, strerror(errno));
9137 }
9138 if (bss->added_bridge) {
c81eff1a 9139 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0)
e17a2477
JM		 9140 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
9141 "bridge %s: %s",
9142 bss->brname, strerror(errno));
9143 }
a2e40bb6
FF		 9144
9145 if (bss != &drv->first_bss) {
8546ea19 9146 struct i802_bss *tbss;
a2e40bb6 9147
8546ea19
JM		 9148 for (tbss = &drv->first_bss; tbss; tbss = tbss->next) {
9149 if (tbss->next == bss) {
9150 tbss->next = bss->next;
3dd1d890
YAP		 9151 /* Unsubscribe management frames */
9152 nl80211_teardown_ap(bss);
cc7a48d1 9153 nl80211_destroy_bss(bss);
8546ea19
JM		 9154 os_free(bss);
9155 bss = NULL;
9156 break;
9157 }
22a7c9d7 9158 }
8546ea19
JM		 9159 if (bss)
9160 wpa_printf(MSG_INFO, "nl80211: %s - could not find "
9161 "BSS %p in the list", __func__, bss);
22a7c9d7
JM		 9162 }
9163#endif /* HOSTAPD */
9164
9165 return 0;
9166}
9167
9168
55777702
JM		 9169static int cookie_handler(struct nl_msg *msg, void *arg)
9170{
9171 struct nlattr *tb[NL80211_ATTR_MAX + 1];
9172 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
9173 u64 *cookie = arg;
9174 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
9175 genlmsg_attrlen(gnlh, 0), NULL);
9176 if (tb[NL80211_ATTR_COOKIE])
9177 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
9178 return NL_SKIP;
9179}
9180
9181
88df0ef7 9182static int nl80211_send_frame_cmd(struct i802_bss *bss,
5dfca53f
JB		 9183 unsigned int freq, unsigned int wait,
9184 const u8 *buf, size_t buf_len,
88df0ef7
JB		 9185 u64 *cookie_out, int no_cck, int no_ack,
9186 int offchanok)
9884f9cc 9187{
88df0ef7 9188 struct wpa_driver_nl80211_data *drv = bss->drv;
9884f9cc
JB		 9189 struct nl_msg *msg;
9190 u64 cookie;
9191 int ret = -1;
9192
9193 msg = nlmsg_alloc();
9194 if (!msg)
9195 return -1;
9196
cc2ada86 9197 wpa_printf(MSG_MSGDUMP, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d "
2e3e4566
JM		 9198 "no_ack=%d offchanok=%d",
9199 freq, wait, no_cck, no_ack, offchanok);
9fb04070 9200 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME);
9884f9cc 9201
f632e483 9202 if (nl80211_set_iface_id(msg, bss) < 0)
d3aaef80
DS		 9203 goto nla_put_failure;
9204
9884f9cc 9205 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
9db931ed
JM		 9206 if (wait)
9207 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait);
b9fd8ce8 9208 if (offchanok && (drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX))
88df0ef7 9209 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
b106173a
JM		 9210 if (no_cck)
9211 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE);
ddc53271
JM		 9212 if (no_ack)
9213 NLA_PUT_FLAG(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK);
970fa12e 9214
9884f9cc
JB		 9215 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf);
9216
9217 cookie = 0;
9218 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
9219 msg = NULL;
9220 if (ret) {
9221 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d "
a05225c8
JM		 9222 "(%s) (freq=%u wait=%u)", ret, strerror(-ret),
9223 freq, wait);
9884f9cc
JB		 9224 goto nla_put_failure;
9225 }
cc2ada86 9226 wpa_printf(MSG_MSGDUMP, "nl80211: Frame TX command accepted%s; "
ddc53271
JM		 9227 "cookie 0x%llx", no_ack ? " (no ACK)" : "",
9228 (long long unsigned int) cookie);
9884f9cc
JB		 9229
9230 if (cookie_out)
ddc53271 9231 *cookie_out = no_ack ? (u64) -1 : cookie;
9884f9cc
JB		 9232
9233nla_put_failure:
9234 nlmsg_free(msg);
9235 return ret;
9236}
9237
9238
9ebce9c5
JM		 9239static int wpa_driver_nl80211_send_action(struct i802_bss *bss,
9240 unsigned int freq,
190b9062 9241 unsigned int wait_time,
58f6fbe0
JM		 9242 const u8 *dst, const u8 *src,
9243 const u8 *bssid,
b106173a
JM		 9244 const u8 *data, size_t data_len,
9245 int no_cck)
58f6fbe0 9246{
a2e40bb6 9247 struct wpa_driver_nl80211_data *drv = bss->drv;
58f6fbe0 9248 int ret = -1;
58f6fbe0
JM		 9249 u8 *buf;
9250 struct ieee80211_hdr *hdr;
58f6fbe0 9251
5dfca53f 9252 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, "
55231068
JM		 9253 "freq=%u MHz wait=%d ms no_cck=%d)",
9254 drv->ifindex, freq, wait_time, no_cck);
58f6fbe0
JM		 9255
9256 buf = os_zalloc(24 + data_len);
9257 if (buf == NULL)
9258 return ret;
9259 os_memcpy(buf + 24, data, data_len);
9260 hdr = (struct ieee80211_hdr *) buf;
9261 hdr->frame_control =
9262 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION);
9263 os_memcpy(hdr->addr1, dst, ETH_ALEN);
9264 os_memcpy(hdr->addr2, src, ETH_ALEN);
9265 os_memcpy(hdr->addr3, bssid, ETH_ALEN);
9266
b1f625e0 9267 if (is_ap_interface(drv->nlmode))
9ebce9c5
JM		 9268 ret = wpa_driver_nl80211_send_mlme(bss, buf, 24 + data_len,
9269 0, freq, no_cck, 1,
9270 wait_time);
9884f9cc 9271 else
88df0ef7 9272 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf,
5dfca53f 9273 24 + data_len,
b106173a 9274 &drv->send_action_cookie,
88df0ef7 9275 no_cck, 0, 1);
58f6fbe0 9276
f8bf1421 9277 os_free(buf);
58f6fbe0
JM		 9278 return ret;
9279}
9280
9281
5dfca53f
JB		 9282static void wpa_driver_nl80211_send_action_cancel_wait(void *priv)
9283{
9284 struct i802_bss *bss = priv;
9285 struct wpa_driver_nl80211_data *drv = bss->drv;
9286 struct nl_msg *msg;
9287 int ret;
9288
9289 msg = nlmsg_alloc();
9290 if (!msg)
9291 return;
9292
316a9e4d
JM		 9293 wpa_printf(MSG_DEBUG, "nl80211: Cancel TX frame wait: cookie=0x%llx",
9294 (long long unsigned int) drv->send_action_cookie);
9fb04070 9295 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL);
5dfca53f
JB		 9296
9297 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
9298 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie);
9299
9300 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
9301 msg = NULL;
9302 if (ret)
9303 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d "
9304 "(%s)", ret, strerror(-ret));
9305
9306 nla_put_failure:
9307 nlmsg_free(msg);
9308}
9309
9310
55777702
JM		 9311static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq,
9312 unsigned int duration)
9313{
a2e40bb6
FF		 9314 struct i802_bss *bss = priv;
9315 struct wpa_driver_nl80211_data *drv = bss->drv;
55777702
JM		 9316 struct nl_msg *msg;
9317 int ret;
9318 u64 cookie;
9319
9320 msg = nlmsg_alloc();
9321 if (!msg)
9322 return -1;
9323
9fb04070 9324 nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL);
55777702 9325
f632e483 9326 if (nl80211_set_iface_id(msg, bss) < 0)
d3aaef80
DS		 9327 goto nla_put_failure;
9328
55777702
JM		 9329 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
9330 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
9331
9332 cookie = 0;
9333 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
5883168a 9334 msg = NULL;
55777702
JM		 9335 if (ret == 0) {
9336 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie "
9337 "0x%llx for freq=%u MHz duration=%u",
9338 (long long unsigned int) cookie, freq, duration);
9339 drv->remain_on_chan_cookie = cookie;
531f0331 9340 drv->pending_remain_on_chan = 1;
55777702
JM		 9341 return 0;
9342 }
9343 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel "
15ed5535
JM		 9344 "(freq=%d duration=%u): %d (%s)",
9345 freq, duration, ret, strerror(-ret));
55777702 9346nla_put_failure:
5883168a 9347 nlmsg_free(msg);
55777702
JM		 9348 return -1;
9349}
9350
9351
9352static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv)
9353{
a2e40bb6
FF		 9354 struct i802_bss *bss = priv;
9355 struct wpa_driver_nl80211_data *drv = bss->drv;
55777702
JM		 9356 struct nl_msg *msg;
9357 int ret;
9358
9359 if (!drv->pending_remain_on_chan) {
9360 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel "
9361 "to cancel");
9362 return -1;
9363 }
9364
9365 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie "
9366 "0x%llx",
9367 (long long unsigned int) drv->remain_on_chan_cookie);
9368
9369 msg = nlmsg_alloc();
9370 if (!msg)
9371 return -1;
9372
9fb04070 9373 nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL);
55777702 9374
f632e483 9375 if (nl80211_set_iface_id(msg, bss) < 0)
d3aaef80
DS		 9376 goto nla_put_failure;
9377
55777702
JM		 9378 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie);
9379
9380 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5883168a 9381 msg = NULL;
55777702
JM		 9382 if (ret == 0)
9383 return 0;
9384 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: "
9385 "%d (%s)", ret, strerror(-ret));
9386nla_put_failure:
5883168a 9387 nlmsg_free(msg);
55777702
JM		 9388 return -1;
9389}
9390
9391
9ebce9c5 9392static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, int report)
504e905c 9393{
a2e40bb6 9394 struct wpa_driver_nl80211_data *drv = bss->drv;
504e905c 9395
5582a5d1 9396 if (!report) {
0d891981
JM		 9397 if (bss->nl_preq && drv->device_ap_sme &&
9398 is_ap_interface(drv->nlmode)) {
9399 /*
9400 * Do not disable Probe Request reporting that was
9401 * enabled in nl80211_setup_ap().
9402 */
9403 wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of "
9404 "Probe Request reporting nl_preq=%p while "
9405 "in AP mode", bss->nl_preq);
9406 } else if (bss->nl_preq) {
36488c05
JM		 9407 wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request "
9408 "reporting nl_preq=%p", bss->nl_preq);
5582a5d1 9409 eloop_unregister_read_sock(
481234cf 9410 nl_socket_get_fd(bss->nl_preq));
221a59c9 9411 nl_destroy_handles(&bss->nl_preq);
5582a5d1
JB		 9412 }
9413 return 0;
9414 }
9415
481234cf 9416 if (bss->nl_preq) {
5582a5d1 9417 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting "
36488c05 9418 "already on! nl_preq=%p", bss->nl_preq);
5582a5d1
JB		 9419 return 0;
9420 }
9421
481234cf
JM		 9422 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq");
9423 if (bss->nl_preq == NULL)
5582a5d1 9424 return -1;
36488c05
JM		 9425 wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request "
9426 "reporting nl_preq=%p", bss->nl_preq);
5582a5d1 9427
481234cf 9428 if (nl80211_register_frame(bss, bss->nl_preq,
5582a5d1
JB		 9429 (WLAN_FC_TYPE_MGMT << 2) |
9430 (WLAN_FC_STYPE_PROBE_REQ << 4),
a92dfde8
JB		 9431 NULL, 0) < 0)
9432 goto out_err;
5582a5d1 9433
481234cf 9434 eloop_register_read_sock(nl_socket_get_fd(bss->nl_preq),
a11241fa 9435 wpa_driver_nl80211_event_receive, bss->nl_cb,
481234cf 9436 bss->nl_preq);
5582a5d1 9437
504e905c 9438 return 0;
5582a5d1 9439
a92dfde8 9440 out_err:
221a59c9 9441 nl_destroy_handles(&bss->nl_preq);
5582a5d1 9442 return -1;
504e905c
JM		 9443}
9444
9445
4e5cb1a3
JM		 9446static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
9447 int ifindex, int disabled)
9448{
9449 struct nl_msg *msg;
9450 struct nlattr *bands, *band;
9451 int ret;
9452
9453 msg = nlmsg_alloc();
9454 if (!msg)
9455 return -1;
9456
9fb04070 9457 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK);
4e5cb1a3
JM		 9458 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
9459
9460 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES);
9461 if (!bands)
9462 goto nla_put_failure;
9463
9464 /*
9465 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything
9466 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS
9467 * rates. All 5 GHz rates are left enabled.
9468 */
9469 band = nla_nest_start(msg, NL80211_BAND_2GHZ);
9470 if (!band)
9471 goto nla_put_failure;
1dea5882
JM		 9472 if (disabled) {
9473 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8,
9474 "\x0c\x12\x18\x24\x30\x48\x60\x6c");
9475 }
4e5cb1a3
JM		 9476 nla_nest_end(msg, band);
9477
9478 nla_nest_end(msg, bands);
9479
9480 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
9481 msg = NULL;
9482 if (ret) {
9483 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d "
9484 "(%s)", ret, strerror(-ret));
1d0c6fb1
JM		 9485 } else
9486 drv->disabled_11b_rates = disabled;
4e5cb1a3
JM		 9487
9488 return ret;
9489
9490nla_put_failure:
9491 nlmsg_free(msg);
9492 return -1;
9493}
9494
9495
af473088
JM		 9496static int wpa_driver_nl80211_deinit_ap(void *priv)
9497{
a2e40bb6
FF		 9498 struct i802_bss *bss = priv;
9499 struct wpa_driver_nl80211_data *drv = bss->drv;
b1f625e0 9500 if (!is_ap_interface(drv->nlmode))
af473088
JM		 9501 return -1;
9502 wpa_driver_nl80211_del_beacon(drv);
b1f625e0 9503 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION);
af473088
JM		 9504}
9505
9506
695c7038
SW		 9507static int wpa_driver_nl80211_stop_ap(void *priv)
9508{
9509 struct i802_bss *bss = priv;
9510 struct wpa_driver_nl80211_data *drv = bss->drv;
9511 if (!is_ap_interface(drv->nlmode))
9512 return -1;
9513 wpa_driver_nl80211_del_beacon(drv);
9514 bss->beacon_set = 0;
9515 return 0;
9516}
9517
9518
3c29244e
EP		 9519static int wpa_driver_nl80211_deinit_p2p_cli(void *priv)
9520{
9521 struct i802_bss *bss = priv;
9522 struct wpa_driver_nl80211_data *drv = bss->drv;
9523 if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT)
9524 return -1;
9525 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION);
9526}
9527
9528
207ef3fb
JM		 9529static void wpa_driver_nl80211_resume(void *priv)
9530{
a2e40bb6 9531 struct i802_bss *bss = priv;
91724d6f
AS		 9532
9533 if (i802_set_iface_flags(bss, 1))
9534 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on resume event");
207ef3fb
JM		 9535}
9536
9537
7b90c16a
JM		 9538static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap,
9539 const u8 *ies, size_t ies_len)
9540{
9541 struct i802_bss *bss = priv;
9542 struct wpa_driver_nl80211_data *drv = bss->drv;
9543 int ret;
9544 u8 *data, *pos;
9545 size_t data_len;
341eebee 9546 const u8 *own_addr = bss->addr;
7b90c16a
JM		 9547
9548 if (action != 1) {
9549 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action "
9550 "action %d", action);
9551 return -1;
9552 }
9553
9554 /*
9555 * Action frame payload:
9556 * Category[1] = 6 (Fast BSS Transition)
9557 * Action[1] = 1 (Fast BSS Transition Request)
9558 * STA Address
9559 * Target AP Address
9560 * FT IEs
9561 */
9562
73fc617d
JM		 9563 data_len = 2 + 2 * ETH_ALEN + ies_len;
9564 data = os_malloc(data_len);
7b90c16a
JM		 9565 if (data == NULL)
9566 return -1;
9567 pos = data;
9568 *pos++ = 0x06; /* FT Action category */
9569 *pos++ = action;
9570 os_memcpy(pos, own_addr, ETH_ALEN);
9571 pos += ETH_ALEN;
9572 os_memcpy(pos, target_ap, ETH_ALEN);
9573 pos += ETH_ALEN;
9574 os_memcpy(pos, ies, ies_len);
9575
190b9062
JB		 9576 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0,
9577 drv->bssid, own_addr, drv->bssid,
b106173a 9578 data, data_len, 0);
7b90c16a
JM		 9579 os_free(data);
9580
9581 return ret;
9582}
9583
9584
b625473c
JM		 9585static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis)
9586{
9587 struct i802_bss *bss = priv;
9588 struct wpa_driver_nl80211_data *drv = bss->drv;
8970bae8
JB		 9589 struct nl_msg *msg;
9590 struct nlattr *cqm;
f0494d0f 9591 int ret = -1;
b625473c
JM		 9592
9593 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d "
9594 "hysteresis=%d", threshold, hysteresis);
9595
9596 msg = nlmsg_alloc();
9597 if (!msg)
9598 return -1;
9599
9fb04070 9600 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM);
b625473c
JM		 9601
9602 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
9603
8970bae8 9604 cqm = nla_nest_start(msg, NL80211_ATTR_CQM);
b625473c 9605 if (cqm == NULL)
21270bb4 9606 goto nla_put_failure;
b625473c 9607
8970bae8
JB		 9608 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THOLD, threshold);
9609 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_HYST, hysteresis);
9610 nla_nest_end(msg, cqm);
21270bb4 9611
f0494d0f 9612 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
b625473c
JM		 9613 msg = NULL;
9614
9615nla_put_failure:
b625473c 9616 nlmsg_free(msg);
f0494d0f 9617 return ret;
b625473c
JM		 9618}
9619
9620
2cc8d8f4
AO		 9621/* Converts nl80211_chan_width to a common format */
9622static enum chan_width convert2width(int width)
9623{
9624 switch (width) {
9625 case NL80211_CHAN_WIDTH_20_NOHT:
9626 return CHAN_WIDTH_20_NOHT;
9627 case NL80211_CHAN_WIDTH_20:
9628 return CHAN_WIDTH_20;
9629 case NL80211_CHAN_WIDTH_40:
9630 return CHAN_WIDTH_40;
9631 case NL80211_CHAN_WIDTH_80:
9632 return CHAN_WIDTH_80;
9633 case NL80211_CHAN_WIDTH_80P80:
9634 return CHAN_WIDTH_80P80;
9635 case NL80211_CHAN_WIDTH_160:
9636 return CHAN_WIDTH_160;
9637 }
9638 return CHAN_WIDTH_UNKNOWN;
9639}
9640
9641
9642static int get_channel_width(struct nl_msg *msg, void *arg)
9643{
9644 struct nlattr *tb[NL80211_ATTR_MAX + 1];
9645 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
9646 struct wpa_signal_info *sig_change = arg;
9647
9648 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
9649 genlmsg_attrlen(gnlh, 0), NULL);
9650
9651 sig_change->center_frq1 = -1;
9652 sig_change->center_frq2 = -1;
9653 sig_change->chanwidth = CHAN_WIDTH_UNKNOWN;
9654
9655 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) {
9656 sig_change->chanwidth = convert2width(
9657 nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH]));
9658 if (tb[NL80211_ATTR_CENTER_FREQ1])
9659 sig_change->center_frq1 =
9660 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]);
9661 if (tb[NL80211_ATTR_CENTER_FREQ2])
9662 sig_change->center_frq2 =
9663 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]);
9664 }
9665
9666 return NL_SKIP;
9667}
9668
9669
9670static int nl80211_get_channel_width(struct wpa_driver_nl80211_data *drv,
9671 struct wpa_signal_info *sig)
9672{
9673 struct nl_msg *msg;
9674
9675 msg = nlmsg_alloc();
9676 if (!msg)
9677 return -ENOMEM;
9678
9679 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_INTERFACE);
9680 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
9681
9682 return send_and_recv_msgs(drv, msg, get_channel_width, sig);
9683
9684nla_put_failure:
9685 nlmsg_free(msg);
9686 return -ENOBUFS;
9687}
9688
9689
1c5c7273
PS		 9690static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si)
9691{
9692 struct i802_bss *bss = priv;
9693 struct wpa_driver_nl80211_data *drv = bss->drv;
9694 int res;
9695
9696 os_memset(si, 0, sizeof(*si));
9697 res = nl80211_get_link_signal(drv, si);
9698 if (res != 0)
9699 return res;
9700
2cc8d8f4
AO		 9701 res = nl80211_get_channel_width(drv, si);
9702 if (res != 0)
9703 return res;
9704
1c5c7273
PS		 9705 return nl80211_get_link_noise(drv, si);
9706}
9707
9708
57ebba59
JJ		 9709static int wpa_driver_nl80211_shared_freq(void *priv)
9710{
9711 struct i802_bss *bss = priv;
9712 struct wpa_driver_nl80211_data *drv = bss->drv;
9713 struct wpa_driver_nl80211_data *driver;
9714 int freq = 0;
9715
9716 /*
9717 * If the same PHY is in connected state with some other interface,
9718 * then retrieve the assoc freq.
9719 */
9720 wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s",
9721 drv->phyname);
9722
9723 dl_list_for_each(driver, &drv->global->interfaces,
9724 struct wpa_driver_nl80211_data, list) {
9725 if (drv == driver ||
9726 os_strcmp(drv->phyname, driver->phyname) != 0 ||
9727 !driver->associated)
9728 continue;
9729
9730 wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s "
9731 MACSTR,
9732 driver->phyname, driver->first_bss.ifname,
341eebee 9733 MAC2STR(driver->first_bss.addr));
d3bd0f05
JJ		 9734 if (is_ap_interface(driver->nlmode))
9735 freq = driver->first_bss.freq;
9736 else
9737 freq = nl80211_get_assoc_freq(driver);
57ebba59
JJ		 9738 wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d",
9739 drv->phyname, freq);
9740 }
9741
9742 if (!freq)
9743 wpa_printf(MSG_DEBUG, "nl80211: No shared interface for "
9744 "PHY (%s) in associated state", drv->phyname);
9745
9746 return freq;
9747}
9748
9749
b91ab76e
JM		 9750static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len,
9751 int encrypt)
9752{
9753 struct i802_bss *bss = priv;
55231068
JM		 9754 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0,
9755 0, 0, 0, 0);
b91ab76e
JM		 9756}
9757
9758
c55f774d
JM		 9759static int nl80211_set_param(void *priv, const char *param)
9760{
c55f774d
JM		 9761 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param);
9762 if (param == NULL)
9763 return 0;
9764
9765#ifdef CONFIG_P2P
9766 if (os_strstr(param, "use_p2p_group_interface=1")) {
482856c8
JM		 9767 struct i802_bss *bss = priv;
9768 struct wpa_driver_nl80211_data *drv = bss->drv;
9769
c55f774d
JM		 9770 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
9771 "interface");
9772 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
9773 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
9774 }
9775#endif /* CONFIG_P2P */
9776
9777 return 0;
9778}
9779
9780
f2ed8023
JM		 9781static void * nl80211_global_init(void)
9782{
9783 struct nl80211_global *global;
36d84860
BG		 9784 struct netlink_config *cfg;
9785
f2ed8023
JM		 9786 global = os_zalloc(sizeof(*global));
9787 if (global == NULL)
9788 return NULL;
c81eff1a 9789 global->ioctl_sock = -1;
f2ed8023 9790 dl_list_init(&global->interfaces);
ff6a158b 9791 global->if_add_ifindex = -1;
36d84860
BG		 9792
9793 cfg = os_zalloc(sizeof(*cfg));
9794 if (cfg == NULL)
9795 goto err;
9796
9797 cfg->ctx = global;
9798 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink;
9799 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink;
9800 global->netlink = netlink_init(cfg);
9801 if (global->netlink == NULL) {
9802 os_free(cfg);
9803 goto err;
9804 }
9805
2a7b66f5
BG		 9806 if (wpa_driver_nl80211_init_nl_global(global) < 0)
9807 goto err;
9808
c81eff1a
BG		 9809 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
9810 if (global->ioctl_sock < 0) {
9811 perror("socket(PF_INET,SOCK_DGRAM)");
9812 goto err;
9813 }
9814
f2ed8023 9815 return global;
36d84860
BG		 9816
9817err:
9818 nl80211_global_deinit(global);
9819 return NULL;
f2ed8023
JM		 9820}
9821
9822
9823static void nl80211_global_deinit(void *priv)
9824{
9825 struct nl80211_global *global = priv;
9826 if (global == NULL)
9827 return;
9828 if (!dl_list_empty(&global->interfaces)) {
9829 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at "
9830 "nl80211_global_deinit",
9831 dl_list_len(&global->interfaces));
9832 }
36d84860
BG		 9833
9834 if (global->netlink)
9835 netlink_deinit(global->netlink);
9836
276e2d67
BG		 9837 nl_destroy_handles(&global->nl);
9838
481234cf 9839 if (global->nl_event) {
d6c9aab8 9840 eloop_unregister_read_sock(
481234cf 9841 nl_socket_get_fd(global->nl_event));
d6c9aab8
JB		 9842 nl_destroy_handles(&global->nl_event);
9843 }
9844
9845 nl_cb_put(global->nl_cb);
2a7b66f5 9846
c81eff1a
BG		 9847 if (global->ioctl_sock >= 0)
9848 close(global->ioctl_sock);
9849
f2ed8023
JM		 9850 os_free(global);
9851}
9852
9853
6859f1cb
BG		 9854static const char * nl80211_get_radio_name(void *priv)
9855{
9856 struct i802_bss *bss = priv;
9857 struct wpa_driver_nl80211_data *drv = bss->drv;
9858 return drv->phyname;
9859}
9860
9861
a6efc65d
JM		 9862static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid,
9863 const u8 *pmkid)
9864{
9865 struct nl_msg *msg;
9866
9867 msg = nlmsg_alloc();
9868 if (!msg)
9869 return -ENOMEM;
9870
9fb04070 9871 nl80211_cmd(bss->drv, msg, 0, cmd);
a6efc65d
JM		 9872
9873 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
9874 if (pmkid)
9875 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid);
9876 if (bssid)
9877 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
9878
9879 return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
9880 nla_put_failure:
9e088e74 9881 nlmsg_free(msg);
a6efc65d
JM		 9882 return -ENOBUFS;
9883}
9884
9885
9886static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid)
9887{
9888 struct i802_bss *bss = priv;
9889 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid));
9890 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid);
9891}
9892
9893
9894static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid)
9895{
9896 struct i802_bss *bss = priv;
9897 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR,
9898 MAC2STR(bssid));
9899 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid);
9900}
9901
9902
9903static int nl80211_flush_pmkid(void *priv)
9904{
9905 struct i802_bss *bss = priv;
9906 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs");
9907 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL);
9908}
9909
9910
b14a210c
JB		 9911static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck,
9912 const u8 *replay_ctr)
9913{
9914 struct i802_bss *bss = priv;
9915 struct wpa_driver_nl80211_data *drv = bss->drv;
9916 struct nlattr *replay_nested;
9917 struct nl_msg *msg;
9918
9919 msg = nlmsg_alloc();
9920 if (!msg)
9921 return;
9922
9fb04070 9923 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
b14a210c
JB		 9924
9925 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
9926
9927 replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
9928 if (!replay_nested)
9929 goto nla_put_failure;
9930
9931 NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek);
9932 NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck);
9933 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN,
9934 replay_ctr);
9935
9936 nla_nest_end(msg, replay_nested);
9937
9938 send_and_recv_msgs(drv, msg, NULL, NULL);
9939 return;
9940 nla_put_failure:
9941 nlmsg_free(msg);
9942}
9943
9944
39718852
JB		 9945static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr,
9946 const u8 *addr, int qos)
bcf24348 9947{
39718852
JB		 9948 /* send data frame to poll STA and check whether
9949 * this frame is ACKed */
bcf24348
JB		 9950 struct {
9951 struct ieee80211_hdr hdr;
9952 u16 qos_ctl;
9953 } STRUCT_PACKED nulldata;
9954 size_t size;
9955
9956 /* Send data frame to poll STA and check whether this frame is ACKed */
9957
9958 os_memset(&nulldata, 0, sizeof(nulldata));
9959
9960 if (qos) {
9961 nulldata.hdr.frame_control =
9962 IEEE80211_FC(WLAN_FC_TYPE_DATA,
9963 WLAN_FC_STYPE_QOS_NULL);
9964 size = sizeof(nulldata);
9965 } else {
9966 nulldata.hdr.frame_control =
9967 IEEE80211_FC(WLAN_FC_TYPE_DATA,
9968 WLAN_FC_STYPE_NULLFUNC);
9969 size = sizeof(struct ieee80211_hdr);
9970 }
9971
9972 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS);
9973 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN);
9974 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
9975 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
9976
9ebce9c5
JM		 9977 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0, 0, 0,
9978 0, 0) < 0)
bcf24348
JB		 9979 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to "
9980 "send poll frame");
9981}
9982
39718852
JB		 9983static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr,
9984 int qos)
9985{
9986 struct i802_bss *bss = priv;
9987 struct wpa_driver_nl80211_data *drv = bss->drv;
9988 struct nl_msg *msg;
9989
9990 if (!drv->poll_command_supported) {
9991 nl80211_send_null_frame(bss, own_addr, addr, qos);
9992 return;
9993 }
9994
9995 msg = nlmsg_alloc();
9996 if (!msg)
9997 return;
9998
9999 nl80211_cmd(drv, msg, 0, NL80211_CMD_PROBE_CLIENT);
10000
10001 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
10002 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
10003
10004 send_and_recv_msgs(drv, msg, NULL, NULL);
10005 return;
10006 nla_put_failure:
10007 nlmsg_free(msg);
10008}
10009
bcf24348 10010
29f338af
JM		 10011static int nl80211_set_power_save(struct i802_bss *bss, int enabled)
10012{
10013 struct nl_msg *msg;
10014
10015 msg = nlmsg_alloc();
10016 if (!msg)
10017 return -ENOMEM;
10018
10019 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_SET_POWER_SAVE);
10020 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
10021 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE,
10022 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED);
10023 return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
10024nla_put_failure:
10025 nlmsg_free(msg);
10026 return -ENOBUFS;
10027}
10028
10029
10030static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps,
10031 int ctwindow)
10032{
10033 struct i802_bss *bss = priv;
10034
10035 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d "
10036 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow);
10037
10038 if (opp_ps != -1 || ctwindow != -1)
10039 return -1; /* Not yet supported */
10040
10041 if (legacy_ps == -1)
10042 return 0;
10043 if (legacy_ps != 0 && legacy_ps != 1)
10044 return -1; /* Not yet supported */
10045
10046 return nl80211_set_power_save(bss, legacy_ps);
10047}
10048
10049
f90e9c1c
SW		 10050static int nl80211_start_radar_detection(void *priv, int freq)
10051{
10052 struct i802_bss *bss = priv;
10053 struct wpa_driver_nl80211_data *drv = bss->drv;
10054 struct nl_msg *msg;
10055 int ret;
10056
10057 wpa_printf(MSG_DEBUG, "nl80211: Start radar detection (CAC)");
10058 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_RADAR)) {
10059 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support radar "
10060 "detection");
10061 return -1;
10062 }
10063
10064 msg = nlmsg_alloc();
10065 if (!msg)
10066 return -1;
10067
10068 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_RADAR_DETECT);
10069 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
10070 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
10071
10072 /* only HT20 is supported at this point */
10073 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, NL80211_CHAN_HT20);
10074
10075 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
10076 if (ret == 0)
10077 return 0;
10078 wpa_printf(MSG_DEBUG, "nl80211: Failed to start radar detection: "
10079 "%d (%s)", ret, strerror(-ret));
10080nla_put_failure:
10081 return -1;
10082}
10083
03ea1786
AN		 10084#ifdef CONFIG_TDLS
10085
10086static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code,
10087 u8 dialog_token, u16 status_code,
10088 const u8 *buf, size_t len)
10089{
10090 struct i802_bss *bss = priv;
10091 struct wpa_driver_nl80211_data *drv = bss->drv;
10092 struct nl_msg *msg;
10093
10094 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
10095 return -EOPNOTSUPP;
10096
10097 if (!dst)
10098 return -EINVAL;
10099
10100 msg = nlmsg_alloc();
10101 if (!msg)
10102 return -ENOMEM;
10103
10104 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT);
10105 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
10106 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
10107 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code);
10108 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token);
10109 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code);
10110 NLA_PUT(msg, NL80211_ATTR_IE, len, buf);
10111
10112 return send_and_recv_msgs(drv, msg, NULL, NULL);
10113
10114nla_put_failure:
10115 nlmsg_free(msg);
10116 return -ENOBUFS;
10117}
10118
10119
10120static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer)
10121{
10122 struct i802_bss *bss = priv;
10123 struct wpa_driver_nl80211_data *drv = bss->drv;
10124 struct nl_msg *msg;
10125 enum nl80211_tdls_operation nl80211_oper;
10126
10127 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
10128 return -EOPNOTSUPP;
10129
10130 switch (oper) {
10131 case TDLS_DISCOVERY_REQ:
10132 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ;
10133 break;
10134 case TDLS_SETUP:
10135 nl80211_oper = NL80211_TDLS_SETUP;
10136 break;
10137 case TDLS_TEARDOWN:
10138 nl80211_oper = NL80211_TDLS_TEARDOWN;
10139 break;
10140 case TDLS_ENABLE_LINK:
10141 nl80211_oper = NL80211_TDLS_ENABLE_LINK;
10142 break;
10143 case TDLS_DISABLE_LINK:
10144 nl80211_oper = NL80211_TDLS_DISABLE_LINK;
10145 break;
10146 case TDLS_ENABLE:
10147 return 0;
10148 case TDLS_DISABLE:
10149 return 0;
10150 default:
10151 return -EINVAL;
10152 }
10153
10154 msg = nlmsg_alloc();
10155 if (!msg)
10156 return -ENOMEM;
10157
10158 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER);
10159 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper);
10160 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
10161 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
10162
10163 return send_and_recv_msgs(drv, msg, NULL, NULL);
10164
10165nla_put_failure:
10166 nlmsg_free(msg);
10167 return -ENOBUFS;
10168}
10169
10170#endif /* CONFIG TDLS */
10171
10172
216eede8
DS		 10173#ifdef ANDROID
10174
10175typedef struct android_wifi_priv_cmd {
10176 char *buf;
10177 int used_len;
10178 int total_len;
10179} android_wifi_priv_cmd;
10180
10181static int drv_errors = 0;
10182
10183static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv)
10184{
10185 drv_errors++;
10186 if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) {
10187 drv_errors = 0;
10188 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED");
10189 }
10190}
10191
10192
10193static int android_priv_cmd(struct i802_bss *bss, const char *cmd)
10194{
10195 struct wpa_driver_nl80211_data *drv = bss->drv;
10196 struct ifreq ifr;
10197 android_wifi_priv_cmd priv_cmd;
10198 char buf[MAX_DRV_CMD_SIZE];
10199 int ret;
10200
10201 os_memset(&ifr, 0, sizeof(ifr));
10202 os_memset(&priv_cmd, 0, sizeof(priv_cmd));
10203 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ);
10204
10205 os_memset(buf, 0, sizeof(buf));
10206 os_strlcpy(buf, cmd, sizeof(buf));
10207
10208 priv_cmd.buf = buf;
10209 priv_cmd.used_len = sizeof(buf);
10210 priv_cmd.total_len = sizeof(buf);
10211 ifr.ifr_data = &priv_cmd;
10212
10213 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr);
10214 if (ret < 0) {
10215 wpa_printf(MSG_ERROR, "%s: failed to issue private commands",
10216 __func__);
10217 wpa_driver_send_hang_msg(drv);
10218 return ret;
10219 }
10220
10221 drv_errors = 0;
10222 return 0;
10223}
10224
10225
10226static int android_pno_start(struct i802_bss *bss,
10227 struct wpa_driver_scan_params *params)
10228{
10229 struct wpa_driver_nl80211_data *drv = bss->drv;
10230 struct ifreq ifr;
10231 android_wifi_priv_cmd priv_cmd;
10232 int ret = 0, i = 0, bp;
10233 char buf[WEXT_PNO_MAX_COMMAND_SIZE];
10234
10235 bp = WEXT_PNOSETUP_HEADER_SIZE;
10236 os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp);
10237 buf[bp++] = WEXT_PNO_TLV_PREFIX;
10238 buf[bp++] = WEXT_PNO_TLV_VERSION;
10239 buf[bp++] = WEXT_PNO_TLV_SUBVERSION;
10240 buf[bp++] = WEXT_PNO_TLV_RESERVED;
10241
10242 while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) {
10243 /* Check that there is enough space needed for 1 more SSID, the
10244 * other sections and null termination */
10245 if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN +
10246 WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf))
10247 break;
10248 wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan",
a97bde0a
JM		 10249 params->ssids[i].ssid,
10250 params->ssids[i].ssid_len);
216eede8
DS		 10251 buf[bp++] = WEXT_PNO_SSID_SECTION;
10252 buf[bp++] = params->ssids[i].ssid_len;
10253 os_memcpy(&buf[bp], params->ssids[i].ssid,
10254 params->ssids[i].ssid_len);
10255 bp += params->ssids[i].ssid_len;
10256 i++;
10257 }
10258
10259 buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION;
10260 os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x",
10261 WEXT_PNO_SCAN_INTERVAL);
10262 bp += WEXT_PNO_SCAN_INTERVAL_LENGTH;
10263
10264 buf[bp++] = WEXT_PNO_REPEAT_SECTION;
10265 os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x",
10266 WEXT_PNO_REPEAT);
10267 bp += WEXT_PNO_REPEAT_LENGTH;
10268
10269 buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION;
10270 os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x",
10271 WEXT_PNO_MAX_REPEAT);
10272 bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1;
10273
10274 memset(&ifr, 0, sizeof(ifr));
10275 memset(&priv_cmd, 0, sizeof(priv_cmd));
10276 os_strncpy(ifr.ifr_name, bss->ifname, IFNAMSIZ);
10277
10278 priv_cmd.buf = buf;
10279 priv_cmd.used_len = bp;
10280 priv_cmd.total_len = bp;
10281 ifr.ifr_data = &priv_cmd;
10282
10283 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr);
10284
10285 if (ret < 0) {
10286 wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d",
10287 ret);
10288 wpa_driver_send_hang_msg(drv);
10289 return ret;
10290 }
10291
10292 drv_errors = 0;
10293
10294 return android_priv_cmd(bss, "PNOFORCE 1");
10295}
10296
10297
10298static int android_pno_stop(struct i802_bss *bss)
10299{
10300 return android_priv_cmd(bss, "PNOFORCE 0");
10301}
10302
10303#endif /* ANDROID */
10304
10305
9ebce9c5
JM		 10306static int driver_nl80211_set_key(const char *ifname, void *priv,
10307 enum wpa_alg alg, const u8 *addr,
10308 int key_idx, int set_tx,
10309 const u8 *seq, size_t seq_len,
10310 const u8 *key, size_t key_len)
10311{
10312 struct i802_bss *bss = priv;
10313 return wpa_driver_nl80211_set_key(ifname, bss, alg, addr, key_idx,
10314 set_tx, seq, seq_len, key, key_len);
10315}
10316
10317
10318static int driver_nl80211_scan2(void *priv,
10319 struct wpa_driver_scan_params *params)
10320{
10321 struct i802_bss *bss = priv;
10322 return wpa_driver_nl80211_scan(bss, params);
10323}
10324
10325
10326static int driver_nl80211_deauthenticate(void *priv, const u8 *addr,
10327 int reason_code)
10328{
10329 struct i802_bss *bss = priv;
10330 return wpa_driver_nl80211_deauthenticate(bss, addr, reason_code);
10331}
10332
10333
10334static int driver_nl80211_authenticate(void *priv,
10335 struct wpa_driver_auth_params *params)
10336{
10337 struct i802_bss *bss = priv;
10338 return wpa_driver_nl80211_authenticate(bss, params);
10339}
10340
10341
10342static void driver_nl80211_deinit(void *priv)
10343{
10344 struct i802_bss *bss = priv;
10345 wpa_driver_nl80211_deinit(bss);
10346}
10347
10348
10349static int driver_nl80211_if_remove(void *priv, enum wpa_driver_if_type type,
10350 const char *ifname)
10351{
10352 struct i802_bss *bss = priv;
10353 return wpa_driver_nl80211_if_remove(bss, type, ifname);
10354}
10355
10356
10357static int driver_nl80211_send_mlme(void *priv, const u8 *data,
10358 size_t data_len, int noack)
10359{
10360 struct i802_bss *bss = priv;
10361 return wpa_driver_nl80211_send_mlme(bss, data, data_len, noack,
10362 0, 0, 0, 0);
10363}
10364
10365
10366static int driver_nl80211_sta_remove(void *priv, const u8 *addr)
10367{
10368 struct i802_bss *bss = priv;
10369 return wpa_driver_nl80211_sta_remove(bss, addr);
10370}
10371
10372
10373#if defined(HOSTAPD) || defined(CONFIG_AP)
10374static int driver_nl80211_set_sta_vlan(void *priv, const u8 *addr,
10375 const char *ifname, int vlan_id)
10376{
10377 struct i802_bss *bss = priv;
10378 return i802_set_sta_vlan(bss, addr, ifname, vlan_id);
10379}
10380#endif /* HOSTAPD || CONFIG_AP */
10381
10382
10383static int driver_nl80211_read_sta_data(void *priv,
10384 struct hostap_sta_driver_data *data,
10385 const u8 *addr)
10386{
10387 struct i802_bss *bss = priv;
10388 return i802_read_sta_data(bss, data, addr);
10389}
10390
10391
10392static int driver_nl80211_send_action(void *priv, unsigned int freq,
10393 unsigned int wait_time,
10394 const u8 *dst, const u8 *src,
10395 const u8 *bssid,
10396 const u8 *data, size_t data_len,
10397 int no_cck)
10398{
10399 struct i802_bss *bss = priv;
10400 return wpa_driver_nl80211_send_action(bss, freq, wait_time, dst, src,
10401 bssid, data, data_len, no_cck);
10402}
10403
10404
10405static int driver_nl80211_probe_req_report(void *priv, int report)
10406{
10407 struct i802_bss *bss = priv;
10408 return wpa_driver_nl80211_probe_req_report(bss, report);
10409}
10410
10411
6a1ce395
DG		 10412static int wpa_driver_nl80211_update_ft_ies(void *priv, const u8 *md,
10413 const u8 *ies, size_t ies_len)
10414{
10415 int ret;
10416 struct nl_msg *msg;
10417 struct i802_bss *bss = priv;
10418 struct wpa_driver_nl80211_data *drv = bss->drv;
10419 u16 mdid = WPA_GET_LE16(md);
10420
10421 msg = nlmsg_alloc();
10422 if (!msg)
10423 return -ENOMEM;
10424
10425 wpa_printf(MSG_DEBUG, "nl80211: Updating FT IEs");
10426 nl80211_cmd(drv, msg, 0, NL80211_CMD_UPDATE_FT_IES);
10427 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
10428 NLA_PUT(msg, NL80211_ATTR_IE, ies_len, ies);
10429 NLA_PUT_U16(msg, NL80211_ATTR_MDID, mdid);
10430
10431 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
10432 if (ret) {
10433 wpa_printf(MSG_DEBUG, "nl80211: update_ft_ies failed "
10434 "err=%d (%s)", ret, strerror(-ret));
10435 }
10436
10437 return ret;
10438
10439nla_put_failure:
10440 nlmsg_free(msg);
10441 return -ENOBUFS;
10442}
10443
10444
597b94f5
AS		 10445const u8 * wpa_driver_nl80211_get_macaddr(void *priv)
10446{
10447 struct i802_bss *bss = priv;
10448 struct wpa_driver_nl80211_data *drv = bss->drv;
10449
10450 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE)
10451 return NULL;
10452
10453 return bss->addr;
10454}
10455
10456
3f5285e8
JM		 10457const struct wpa_driver_ops wpa_driver_nl80211_ops = {
10458 .name = "nl80211",
10459 .desc = "Linux nl80211/cfg80211",
10460 .get_bssid = wpa_driver_nl80211_get_bssid,
10461 .get_ssid = wpa_driver_nl80211_get_ssid,
9ebce9c5
JM		 10462 .set_key = driver_nl80211_set_key,
10463 .scan2 = driver_nl80211_scan2,
d21c63b9
LC		 10464 .sched_scan = wpa_driver_nl80211_sched_scan,
10465 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan,
3f5285e8 10466 .get_scan_results2 = wpa_driver_nl80211_get_scan_results,
9ebce9c5
JM		 10467 .deauthenticate = driver_nl80211_deauthenticate,
10468 .authenticate = driver_nl80211_authenticate,
3f5285e8 10469 .associate = wpa_driver_nl80211_associate,
f2ed8023
JM		 10470 .global_init = nl80211_global_init,
10471 .global_deinit = nl80211_global_deinit,
10472 .init2 = wpa_driver_nl80211_init,
9ebce9c5 10473 .deinit = driver_nl80211_deinit,
3f5285e8
JM		 10474 .get_capa = wpa_driver_nl80211_get_capa,
10475 .set_operstate = wpa_driver_nl80211_set_operstate,
01652550 10476 .set_supp_port = wpa_driver_nl80211_set_supp_port,
6d158490 10477 .set_country = wpa_driver_nl80211_set_country,
19c3b566 10478 .set_ap = wpa_driver_nl80211_set_ap,
3c4ca363 10479 .set_acl = wpa_driver_nl80211_set_acl,
22a7c9d7 10480 .if_add = wpa_driver_nl80211_if_add,
9ebce9c5
JM		 10481 .if_remove = driver_nl80211_if_remove,
10482 .send_mlme = driver_nl80211_send_mlme,
c3965310 10483 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data,
0f4e8b4f 10484 .sta_add = wpa_driver_nl80211_sta_add,
9ebce9c5 10485 .sta_remove = driver_nl80211_sta_remove,
db149ac9 10486 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol,
a8d6ffa4 10487 .sta_set_flags = wpa_driver_nl80211_sta_set_flags,
c5121837
JM		 10488#ifdef HOSTAPD
10489 .hapd_init = i802_init,
c5121837 10490 .hapd_deinit = i802_deinit,
f7b3920c
JM		 10491 .set_wds_sta = i802_set_wds_sta,
10492#endif /* HOSTAPD */
10493#if defined(HOSTAPD) || defined(CONFIG_AP)
c5121837
JM		 10494 .get_seqnum = i802_get_seqnum,
10495 .flush = i802_flush,
c5121837
JM		 10496 .get_inact_sec = i802_get_inact_sec,
10497 .sta_clear_stats = i802_sta_clear_stats,
c5121837
JM		 10498 .set_rts = i802_set_rts,
10499 .set_frag = i802_set_frag,
c5121837 10500 .set_tx_queue_params = i802_set_tx_queue_params,
9ebce9c5 10501 .set_sta_vlan = driver_nl80211_set_sta_vlan,
ee7ab173
JB		 10502 .sta_deauth = i802_sta_deauth,
10503 .sta_disassoc = i802_sta_disassoc,
10504#endif /* HOSTAPD || CONFIG_AP */
9ebce9c5 10505 .read_sta_data = driver_nl80211_read_sta_data,
e3802622 10506 .set_freq = i802_set_freq,
9ebce9c5 10507 .send_action = driver_nl80211_send_action,
5dfca53f 10508 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait,
55777702
JM		 10509 .remain_on_channel = wpa_driver_nl80211_remain_on_channel,
10510 .cancel_remain_on_channel =
10511 wpa_driver_nl80211_cancel_remain_on_channel,
9ebce9c5 10512 .probe_req_report = driver_nl80211_probe_req_report,
af473088 10513 .deinit_ap = wpa_driver_nl80211_deinit_ap,
3c29244e 10514 .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli,
207ef3fb 10515 .resume = wpa_driver_nl80211_resume,
7b90c16a 10516 .send_ft_action = nl80211_send_ft_action,
b625473c 10517 .signal_monitor = nl80211_signal_monitor,
1c5c7273 10518 .signal_poll = nl80211_signal_poll,
b91ab76e 10519 .send_frame = nl80211_send_frame,
57ebba59 10520 .shared_freq = wpa_driver_nl80211_shared_freq,
c55f774d 10521 .set_param = nl80211_set_param,
6859f1cb 10522 .get_radio_name = nl80211_get_radio_name,
a6efc65d
JM		 10523 .add_pmkid = nl80211_add_pmkid,
10524 .remove_pmkid = nl80211_remove_pmkid,
10525 .flush_pmkid = nl80211_flush_pmkid,
b14a210c 10526 .set_rekey_info = nl80211_set_rekey_info,
bcf24348 10527 .poll_client = nl80211_poll_client,
29f338af 10528 .set_p2p_powersave = nl80211_set_p2p_powersave,
f90e9c1c 10529 .start_dfs_cac = nl80211_start_radar_detection,
695c7038 10530 .stop_ap = wpa_driver_nl80211_stop_ap,
03ea1786
AN		 10531#ifdef CONFIG_TDLS
10532 .send_tdls_mgmt = nl80211_send_tdls_mgmt,
10533 .tdls_oper = nl80211_tdls_oper,
10534#endif /* CONFIG_TDLS */
6a1ce395 10535 .update_ft_ies = wpa_driver_nl80211_update_ft_ies,
597b94f5 10536 .get_mac_addr = wpa_driver_nl80211_get_macaddr,
3f5285e8 10537};
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