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[thirdparty/hostap.git] / src / drivers / driver_nl80211.c
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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
1c6edec6
JM		 112#ifdef ANDROID
113/* system/core/libnl_2 does not include nl_socket_set_nonblocking() */
114static int android_nl_socket_set_nonblocking(struct nl_handle *handle)
115{
116 return fcntl(nl_socket_get_fd(handle), F_SETFL, O_NONBLOCK);
117}
118#undef nl_socket_set_nonblocking
119#define nl_socket_set_nonblocking(h) android_nl_socket_set_nonblocking(h)
120#endif /* ANDROID */
121
122
481234cf 123static struct nl_handle * nl_create_handle(struct nl_cb *cb, const char *dbg)
a92dfde8 124{
481234cf 125 struct nl_handle *handle;
a92dfde8 126
481234cf
JM		 127 handle = nl80211_handle_alloc(cb);
128 if (handle == NULL) {
a92dfde8
JB		 129 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
130 "callbacks (%s)", dbg);
481234cf 131 return NULL;
a92dfde8
JB		 132 }
133
481234cf 134 if (genl_connect(handle)) {
a92dfde8
JB		 135 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
136 "netlink (%s)", dbg);
481234cf
JM		 137 nl80211_handle_destroy(handle);
138 return NULL;
a92dfde8
JB		 139 }
140
481234cf 141 return handle;
a92dfde8
JB		 142}
143
144
481234cf 145static void nl_destroy_handles(struct nl_handle **handle)
a92dfde8 146{
481234cf 147 if (*handle == NULL)
a92dfde8 148 return;
481234cf
JM		 149 nl80211_handle_destroy(*handle);
150 *handle = NULL;
a92dfde8
JB		 151}
152
153
10b85921
JB		 154#if __WORDSIZE == 64
155#define ELOOP_SOCKET_INVALID (intptr_t) 0x8888888888888889ULL
156#else
157#define ELOOP_SOCKET_INVALID (intptr_t) 0x88888889ULL
158#endif
159
5f65e9f7
JB		 160static void nl80211_register_eloop_read(struct nl_handle **handle,
161 eloop_sock_handler handler,
162 void *eloop_data)
163{
10b85921 164 nl_socket_set_nonblocking(*handle);
5f65e9f7
JB		 165 eloop_register_read_sock(nl_socket_get_fd(*handle), handler,
166 eloop_data, *handle);
10b85921 167 *handle = (void *) (((intptr_t) *handle) ^ ELOOP_SOCKET_INVALID);
5f65e9f7
JB		 168}
169
170
171static void nl80211_destroy_eloop_handle(struct nl_handle **handle)
172{
10b85921 173 *handle = (void *) (((intptr_t) *handle) ^ ELOOP_SOCKET_INVALID);
5f65e9f7
JB		 174 eloop_unregister_read_sock(nl_socket_get_fd(*handle));
175 nl_destroy_handles(handle);
176}
177
178
3f5285e8
JM		 179#ifndef IFF_LOWER_UP
180#define IFF_LOWER_UP 0x10000 /* driver signals L1 up */
181#endif
182#ifndef IFF_DORMANT
183#define IFF_DORMANT 0x20000 /* driver signals dormant */
184#endif
185
186#ifndef IF_OPER_DORMANT
187#define IF_OPER_DORMANT 5
188#endif
189#ifndef IF_OPER_UP
190#define IF_OPER_UP 6
191#endif
192
f2ed8023
JM		 193struct nl80211_global {
194 struct dl_list interfaces;
ff6a158b 195 int if_add_ifindex;
f632e483
AS		 196 u64 if_add_wdevid;
197 int if_add_wdevid_set;
36d84860 198 struct netlink_data *netlink;
2a7b66f5 199 struct nl_cb *nl_cb;
481234cf 200 struct nl_handle *nl;
335d42b1 201 int nl80211_id;
c81eff1a 202 int ioctl_sock; /* socket for ioctl() use */
d6c9aab8 203
481234cf 204 struct nl_handle *nl_event;
f2ed8023
JM		 205};
206
e32ad281
JB		 207struct nl80211_wiphy_data {
208 struct dl_list list;
209 struct dl_list bsss;
210 struct dl_list drvs;
211
481234cf 212 struct nl_handle *nl_beacons;
e32ad281
JB		 213 struct nl_cb *nl_cb;
214
215 int wiphy_idx;
216};
217
36d84860
BG		 218static void nl80211_global_deinit(void *priv);
219
c5121837 220struct i802_bss {
a2e40bb6 221 struct wpa_driver_nl80211_data *drv;
c5121837 222 struct i802_bss *next;
b4fd6fab 223 int ifindex;
d3aaef80 224 u64 wdev_id;
a2e40bb6 225 char ifname[IFNAMSIZ + 1];
e17a2477 226 char brname[IFNAMSIZ];
c5121837 227 unsigned int beacon_set:1;
e17a2477
JM		 228 unsigned int added_if_into_bridge:1;
229 unsigned int added_bridge:1;
873d0fcf 230 unsigned int in_deinit:1;
d3aaef80 231 unsigned int wdev_id_set:1;
390e489c 232 unsigned int added_if:1;
221a59c9 233
341eebee
JB		 234 u8 addr[ETH_ALEN];
235
e4fb2167 236 int freq;
60b13c20 237 int if_dynamic;
e4fb2167 238
a5e1eb20 239 void *ctx;
481234cf 240 struct nl_handle *nl_preq, *nl_mgmt;
cc7a48d1 241 struct nl_cb *nl_cb;
e32ad281
JB		 242
243 struct nl80211_wiphy_data *wiphy_data;
244 struct dl_list wiphy_list;
c5121837 245};
3f5285e8
JM		 246
247struct wpa_driver_nl80211_data {
f2ed8023
JM		 248 struct nl80211_global *global;
249 struct dl_list list;
e32ad281 250 struct dl_list wiphy_list;
6859f1cb 251 char phyname[32];
3f5285e8 252 void *ctx;
3f5285e8 253 int ifindex;
7524cfb1 254 int if_removed;
a63063b4 255 int if_disabled;
7d9c3698 256 int ignore_if_down_event;
8401a6b0 257 struct rfkill_data *rfkill;
c2a04078 258 struct wpa_driver_capa capa;
8cd6b7bc
JB		 259 u8 *extended_capa, *extended_capa_mask;
260 unsigned int extended_capa_len;
c2a04078 261 int has_capability;
c2a04078 262
3f5285e8
JM		 263 int operstate;
264
3f5285e8 265 int scan_complete_events;
a771c07d
JM		 266 enum scan_states {
267 NO_SCAN, SCAN_REQUESTED, SCAN_STARTED, SCAN_COMPLETED,
268 SCAN_ABORTED, SCHED_SCAN_STARTED, SCHED_SCAN_STOPPED,
269 SCHED_SCAN_RESULTS
270 } scan_state;
3f5285e8 271
1afc986d 272 struct nl_cb *nl_cb;
1c873584 273
e6b8efeb 274 u8 auth_bssid[ETH_ALEN];
add9b7a4 275 u8 auth_attempt_bssid[ETH_ALEN];
c2a04078 276 u8 bssid[ETH_ALEN];
add9b7a4 277 u8 prev_bssid[ETH_ALEN];
c2a04078 278 int associated;
fd05d64e
JM		 279 u8 ssid[32];
280 size_t ssid_len;
b1f625e0
EP		 281 enum nl80211_iftype nlmode;
282 enum nl80211_iftype ap_scan_as_station;
4832ecd7 283 unsigned int assoc_freq;
d2440ba0 284
0915d02c
JM		 285 int monitor_sock;
286 int monitor_ifidx;
3fd1cefb 287 int monitor_refcount;
7da3abe7 288
b3af99d2 289 unsigned int disabled_11b_rates:1;
55777702 290 unsigned int pending_remain_on_chan:1;
dac12351 291 unsigned int in_interface_list:1;
61cbe2ff 292 unsigned int device_ap_sme:1;
39718852 293 unsigned int poll_command_supported:1;
32ab4855 294 unsigned int data_tx_status:1;
536fd62d
JM		 295 unsigned int scan_for_auth:1;
296 unsigned int retry_auth:1;
a11241fa 297 unsigned int use_monitor:1;
a8c5b43a 298 unsigned int ignore_next_local_disconnect:1;
851b0c55 299 unsigned int allow_p2p_device:1;
0d547d5f 300 unsigned int hostapd:1;
49b4b205 301 unsigned int start_mode_ap:1;
146fa9b3 302 unsigned int start_iface_up:1;
1c4ffa87 303 unsigned int channel_switch_supported:1;
55777702
JM		 304
305 u64 remain_on_chan_cookie;
58f6fbe0 306 u64 send_action_cookie;
c5121837 307
5582a5d1
JB		 308 unsigned int last_mgmt_freq;
309
3812464c
JM		 310 struct wpa_driver_scan_filter *filter_ssids;
311 size_t num_filter_ssids;
312
834ee56f 313 struct i802_bss *first_bss;
a2e40bb6 314
d12dab4c 315 int eapol_tx_sock;
f10bfc9a 316
c5121837 317 int eapol_sock; /* socket for EAPOL frames */
c5121837
JM		 318
319 int default_if_indices[16];
320 int *if_indices;
321 int num_if_indices;
536fd62d
JM		 322
323 /* From failed authentication command */
324 int auth_freq;
325 u8 auth_bssid_[ETH_ALEN];
326 u8 auth_ssid[32];
327 size_t auth_ssid_len;
328 int auth_alg;
329 u8 *auth_ie;
330 size_t auth_ie_len;
331 u8 auth_wep_key[4][16];
332 size_t auth_wep_key_len[4];
333 int auth_wep_tx_keyidx;
334 int auth_local_state_change;
335 int auth_p2p;
3f5285e8
JM		 336};
337
338
9ebce9c5 339static void wpa_driver_nl80211_deinit(struct i802_bss *bss);
3f5285e8
JM		 340static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx,
341 void *timeout_ctx);
b1f625e0
EP		 342static int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
343 enum nl80211_iftype nlmode);
362f781e 344static int
0d547d5f 345wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv,
49b4b205 346 const u8 *set_addr, int first);
d72aad94 347static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
77339912
JM		 348 const u8 *addr, int cmd, u16 reason_code,
349 int local_state_change);
460456f8
JM		 350static void nl80211_remove_monitor_interface(
351 struct wpa_driver_nl80211_data *drv);
88df0ef7 352static int nl80211_send_frame_cmd(struct i802_bss *bss,
5dfca53f 353 unsigned int freq, unsigned int wait,
b106173a 354 const u8 *buf, size_t buf_len, u64 *cookie,
88df0ef7 355 int no_cck, int no_ack, int offchanok);
b21990b4
AQ		 356static int nl80211_register_frame(struct i802_bss *bss,
357 struct nl_handle *hl_handle,
358 u16 type, const u8 *match, size_t match_len);
9ebce9c5
JM		 359static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss,
360 int report);
216eede8
DS		 361#ifdef ANDROID
362static int android_pno_start(struct i802_bss *bss,
363 struct wpa_driver_scan_params *params);
364static int android_pno_stop(struct i802_bss *bss);
5e2c3490
JM		 365extern int wpa_driver_nl80211_driver_cmd(void *priv, char *cmd, char *buf,
366 size_t buf_len);
216eede8 367#endif /* ANDROID */
0de38036
JM		 368#ifdef ANDROID_P2P
369int wpa_driver_set_p2p_noa(void *priv, u8 count, int start, int duration);
370int wpa_driver_get_p2p_noa(void *priv, u8 *buf, size_t len);
371int wpa_driver_set_p2p_ps(void *priv, int legacy_ps, int opp_ps, int ctwindow);
372int wpa_driver_set_ap_wps_p2p_ie(void *priv, const struct wpabuf *beacon,
373 const struct wpabuf *proberesp,
374 const struct wpabuf *assocresp);
375#endif /* ANDROID_P2P */
0915d02c 376
2135f224
JM		 377static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
378static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
97cfcf64 379static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
9ebce9c5 380static int wpa_driver_nl80211_if_remove(struct i802_bss *bss,
fbbfcbac
FF		 381 enum wpa_driver_if_type type,
382 const char *ifname);
072ad14c 383
9ebce9c5
JM		 384static int wpa_driver_nl80211_set_freq(struct i802_bss *bss,
385 struct hostapd_freq_params *freq);
4e5cb1a3
JM		 386static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
387 int ifindex, int disabled);
504e905c 388
21bdbe38 389static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv);
536fd62d
JM		 390static int wpa_driver_nl80211_authenticate_retry(
391 struct wpa_driver_nl80211_data *drv);
21bdbe38 392
bf83eab5
IP		 393static int i802_set_iface_flags(struct i802_bss *bss, int up);
394
3f5285e8 395
2090a0b4
DS		 396static const char * nl80211_command_to_string(enum nl80211_commands cmd)
397{
398#define C2S(x) case x: return #x;
399 switch (cmd) {
400 C2S(NL80211_CMD_UNSPEC)
401 C2S(NL80211_CMD_GET_WIPHY)
402 C2S(NL80211_CMD_SET_WIPHY)
403 C2S(NL80211_CMD_NEW_WIPHY)
404 C2S(NL80211_CMD_DEL_WIPHY)
405 C2S(NL80211_CMD_GET_INTERFACE)
406 C2S(NL80211_CMD_SET_INTERFACE)
407 C2S(NL80211_CMD_NEW_INTERFACE)
408 C2S(NL80211_CMD_DEL_INTERFACE)
409 C2S(NL80211_CMD_GET_KEY)
410 C2S(NL80211_CMD_SET_KEY)
411 C2S(NL80211_CMD_NEW_KEY)
412 C2S(NL80211_CMD_DEL_KEY)
413 C2S(NL80211_CMD_GET_BEACON)
414 C2S(NL80211_CMD_SET_BEACON)
415 C2S(NL80211_CMD_START_AP)
416 C2S(NL80211_CMD_STOP_AP)
417 C2S(NL80211_CMD_GET_STATION)
418 C2S(NL80211_CMD_SET_STATION)
419 C2S(NL80211_CMD_NEW_STATION)
420 C2S(NL80211_CMD_DEL_STATION)
421 C2S(NL80211_CMD_GET_MPATH)
422 C2S(NL80211_CMD_SET_MPATH)
423 C2S(NL80211_CMD_NEW_MPATH)
424 C2S(NL80211_CMD_DEL_MPATH)
425 C2S(NL80211_CMD_SET_BSS)
426 C2S(NL80211_CMD_SET_REG)
427 C2S(NL80211_CMD_REQ_SET_REG)
428 C2S(NL80211_CMD_GET_MESH_CONFIG)
429 C2S(NL80211_CMD_SET_MESH_CONFIG)
430 C2S(NL80211_CMD_SET_MGMT_EXTRA_IE)
431 C2S(NL80211_CMD_GET_REG)
432 C2S(NL80211_CMD_GET_SCAN)
433 C2S(NL80211_CMD_TRIGGER_SCAN)
434 C2S(NL80211_CMD_NEW_SCAN_RESULTS)
435 C2S(NL80211_CMD_SCAN_ABORTED)
436 C2S(NL80211_CMD_REG_CHANGE)
437 C2S(NL80211_CMD_AUTHENTICATE)
438 C2S(NL80211_CMD_ASSOCIATE)
439 C2S(NL80211_CMD_DEAUTHENTICATE)
440 C2S(NL80211_CMD_DISASSOCIATE)
441 C2S(NL80211_CMD_MICHAEL_MIC_FAILURE)
442 C2S(NL80211_CMD_REG_BEACON_HINT)
443 C2S(NL80211_CMD_JOIN_IBSS)
444 C2S(NL80211_CMD_LEAVE_IBSS)
445 C2S(NL80211_CMD_TESTMODE)
446 C2S(NL80211_CMD_CONNECT)
447 C2S(NL80211_CMD_ROAM)
448 C2S(NL80211_CMD_DISCONNECT)
449 C2S(NL80211_CMD_SET_WIPHY_NETNS)
450 C2S(NL80211_CMD_GET_SURVEY)
451 C2S(NL80211_CMD_NEW_SURVEY_RESULTS)
452 C2S(NL80211_CMD_SET_PMKSA)
453 C2S(NL80211_CMD_DEL_PMKSA)
454 C2S(NL80211_CMD_FLUSH_PMKSA)
455 C2S(NL80211_CMD_REMAIN_ON_CHANNEL)
456 C2S(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL)
457 C2S(NL80211_CMD_SET_TX_BITRATE_MASK)
458 C2S(NL80211_CMD_REGISTER_FRAME)
459 C2S(NL80211_CMD_FRAME)
460 C2S(NL80211_CMD_FRAME_TX_STATUS)
461 C2S(NL80211_CMD_SET_POWER_SAVE)
462 C2S(NL80211_CMD_GET_POWER_SAVE)
463 C2S(NL80211_CMD_SET_CQM)
464 C2S(NL80211_CMD_NOTIFY_CQM)
465 C2S(NL80211_CMD_SET_CHANNEL)
466 C2S(NL80211_CMD_SET_WDS_PEER)
467 C2S(NL80211_CMD_FRAME_WAIT_CANCEL)
468 C2S(NL80211_CMD_JOIN_MESH)
469 C2S(NL80211_CMD_LEAVE_MESH)
470 C2S(NL80211_CMD_UNPROT_DEAUTHENTICATE)
471 C2S(NL80211_CMD_UNPROT_DISASSOCIATE)
472 C2S(NL80211_CMD_NEW_PEER_CANDIDATE)
473 C2S(NL80211_CMD_GET_WOWLAN)
474 C2S(NL80211_CMD_SET_WOWLAN)
475 C2S(NL80211_CMD_START_SCHED_SCAN)
476 C2S(NL80211_CMD_STOP_SCHED_SCAN)
477 C2S(NL80211_CMD_SCHED_SCAN_RESULTS)
478 C2S(NL80211_CMD_SCHED_SCAN_STOPPED)
479 C2S(NL80211_CMD_SET_REKEY_OFFLOAD)
480 C2S(NL80211_CMD_PMKSA_CANDIDATE)
481 C2S(NL80211_CMD_TDLS_OPER)
482 C2S(NL80211_CMD_TDLS_MGMT)
483 C2S(NL80211_CMD_UNEXPECTED_FRAME)
484 C2S(NL80211_CMD_PROBE_CLIENT)
485 C2S(NL80211_CMD_REGISTER_BEACONS)
486 C2S(NL80211_CMD_UNEXPECTED_4ADDR_FRAME)
487 C2S(NL80211_CMD_SET_NOACK_MAP)
488 C2S(NL80211_CMD_CH_SWITCH_NOTIFY)
489 C2S(NL80211_CMD_START_P2P_DEVICE)
490 C2S(NL80211_CMD_STOP_P2P_DEVICE)
491 C2S(NL80211_CMD_CONN_FAILED)
492 C2S(NL80211_CMD_SET_MCAST_RATE)
493 C2S(NL80211_CMD_SET_MAC_ACL)
494 C2S(NL80211_CMD_RADAR_DETECT)
495 C2S(NL80211_CMD_GET_PROTOCOL_FEATURES)
496 C2S(NL80211_CMD_UPDATE_FT_IES)
497 C2S(NL80211_CMD_FT_EVENT)
498 C2S(NL80211_CMD_CRIT_PROTOCOL_START)
499 C2S(NL80211_CMD_CRIT_PROTOCOL_STOP)
500 default:
501 return "NL80211_CMD_UNKNOWN";
502 }
503#undef C2S
504}
505
506
8d1fdde7
JD		 507/* Converts nl80211_chan_width to a common format */
508static enum chan_width convert2width(int width)
509{
510 switch (width) {
511 case NL80211_CHAN_WIDTH_20_NOHT:
512 return CHAN_WIDTH_20_NOHT;
513 case NL80211_CHAN_WIDTH_20:
514 return CHAN_WIDTH_20;
515 case NL80211_CHAN_WIDTH_40:
516 return CHAN_WIDTH_40;
517 case NL80211_CHAN_WIDTH_80:
518 return CHAN_WIDTH_80;
519 case NL80211_CHAN_WIDTH_80P80:
520 return CHAN_WIDTH_80P80;
521 case NL80211_CHAN_WIDTH_160:
522 return CHAN_WIDTH_160;
523 }
524 return CHAN_WIDTH_UNKNOWN;
525}
526
527
b1f625e0
EP		 528static int is_ap_interface(enum nl80211_iftype nlmode)
529{
530 return (nlmode == NL80211_IFTYPE_AP ||
531 nlmode == NL80211_IFTYPE_P2P_GO);
532}
533
534
535static int is_sta_interface(enum nl80211_iftype nlmode)
536{
537 return (nlmode == NL80211_IFTYPE_STATION ||
538 nlmode == NL80211_IFTYPE_P2P_CLIENT);
539}
540
541
6a71413e 542static int is_p2p_net_interface(enum nl80211_iftype nlmode)
b3af99d2
JM		 543{
544 return (nlmode == NL80211_IFTYPE_P2P_CLIENT ||
545 nlmode == NL80211_IFTYPE_P2P_GO);
546}
547
548
add9b7a4
JM		 549static void nl80211_mark_disconnected(struct wpa_driver_nl80211_data *drv)
550{
551 if (drv->associated)
552 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN);
553 drv->associated = 0;
554 os_memset(drv->bssid, 0, ETH_ALEN);
555}
556
557
f5a8d422
JM		 558struct nl80211_bss_info_arg {
559 struct wpa_driver_nl80211_data *drv;
560 struct wpa_scan_results *res;
561 unsigned int assoc_freq;
20f5a4c2 562 u8 assoc_bssid[ETH_ALEN];
f5a8d422
JM		 563};
564
565static int bss_info_handler(struct nl_msg *msg, void *arg);
566
567
6241fcb1
JM		 568/* nl80211 code */
569static int ack_handler(struct nl_msg *msg, void *arg)
570{
571 int *err = arg;
572 *err = 0;
573 return NL_STOP;
574}
575
576static int finish_handler(struct nl_msg *msg, void *arg)
577{
8e8df255
JM		 578 int *ret = arg;
579 *ret = 0;
6241fcb1
JM		 580 return NL_SKIP;
581}
582
583static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err,
584 void *arg)
585{
586 int *ret = arg;
587 *ret = err->error;
588 return NL_SKIP;
589}
590
5b7b85f6
JM		 591
592static int no_seq_check(struct nl_msg *msg, void *arg)
593{
594 return NL_OK;
595}
596
597
d6c9aab8 598static int send_and_recv(struct nl80211_global *global,
58f6fbe0
JM		 599 struct nl_handle *nl_handle, struct nl_msg *msg,
600 int (*valid_handler)(struct nl_msg *, void *),
601 void *valid_data)
6241fcb1
JM		 602{
603 struct nl_cb *cb;
604 int err = -ENOMEM;
605
d6c9aab8 606 cb = nl_cb_clone(global->nl_cb);
6241fcb1
JM		 607 if (!cb)
608 goto out;
609
58f6fbe0 610 err = nl_send_auto_complete(nl_handle, msg);
6241fcb1
JM		 611 if (err < 0)
612 goto out;
613
614 err = 1;
615
616 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
8e8df255 617 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
6241fcb1
JM		 618 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
619
620 if (valid_handler)
621 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM,
622 valid_handler, valid_data);
623
34068ac3
JM		 624 while (err > 0) {
625 int res = nl_recvmsgs(nl_handle, cb);
626 if (res) {
627 wpa_printf(MSG_INFO,
628 "nl80211: %s->nl_recvmsgs failed: %d",
629 __func__, res);
630 }
631 }
6241fcb1
JM		 632 out:
633 nl_cb_put(cb);
634 nlmsg_free(msg);
635 return err;
636}
637
638
d6c9aab8
JB		 639static int send_and_recv_msgs_global(struct nl80211_global *global,
640 struct nl_msg *msg,
641 int (*valid_handler)(struct nl_msg *, void *),
642 void *valid_data)
643{
481234cf 644 return send_and_recv(global, global->nl, msg, valid_handler,
d6c9aab8
JB		 645 valid_data);
646}
647
648
98218963
DS		 649static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv,
650 struct nl_msg *msg,
651 int (*valid_handler)(struct nl_msg *, void *),
652 void *valid_data)
58f6fbe0 653{
481234cf 654 return send_and_recv(drv->global, drv->global->nl, msg,
d6c9aab8 655 valid_handler, valid_data);
58f6fbe0
JM		 656}
657
658
97865538
JM		 659struct family_data {
660 const char *group;
661 int id;
662};
663
664
d3aaef80
DS		 665static int nl80211_set_iface_id(struct nl_msg *msg, struct i802_bss *bss)
666{
667 if (bss->wdev_id_set)
668 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id);
669 else
670 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
671 return 0;
672
673nla_put_failure:
674 return -1;
675}
676
677
97865538
JM		 678static int family_handler(struct nl_msg *msg, void *arg)
679{
680 struct family_data *res = arg;
681 struct nlattr *tb[CTRL_ATTR_MAX + 1];
682 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
683 struct nlattr *mcgrp;
684 int i;
685
686 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
687 genlmsg_attrlen(gnlh, 0), NULL);
688 if (!tb[CTRL_ATTR_MCAST_GROUPS])
689 return NL_SKIP;
690
691 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) {
692 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1];
693 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp),
694 nla_len(mcgrp), NULL);
695 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] ||
696 !tb2[CTRL_ATTR_MCAST_GRP_ID] ||
697 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]),
698 res->group,
699 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0)
700 continue;
701 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]);
702 break;
703 };
704
705 return NL_SKIP;
706}
707
708
d6c9aab8 709static int nl_get_multicast_id(struct nl80211_global *global,
97865538
JM		 710 const char *family, const char *group)
711{
712 struct nl_msg *msg;
713 int ret = -1;
714 struct family_data res = { group, -ENOENT };
715
716 msg = nlmsg_alloc();
717 if (!msg)
718 return -ENOMEM;
481234cf 719 genlmsg_put(msg, 0, 0, genl_ctrl_resolve(global->nl, "nlctrl"),
97865538
JM		 720 0, 0, CTRL_CMD_GETFAMILY, 0);
721 NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family);
722
d6c9aab8 723 ret = send_and_recv_msgs_global(global, msg, family_handler, &res);
97865538
JM		 724 msg = NULL;
725 if (ret == 0)
726 ret = res.id;
727
728nla_put_failure:
729 nlmsg_free(msg);
730 return ret;
731}
732
733
9fb04070
JM		 734static void * nl80211_cmd(struct wpa_driver_nl80211_data *drv,
735 struct nl_msg *msg, int flags, uint8_t cmd)
736{
335d42b1 737 return genlmsg_put(msg, 0, 0, drv->global->nl80211_id,
276e2d67 738 0, flags, cmd, 0);
9fb04070
JM		 739}
740
741
e32ad281
JB		 742struct wiphy_idx_data {
743 int wiphy_idx;
01517c8b 744 enum nl80211_iftype nlmode;
597b94f5 745 u8 *macaddr;
e32ad281
JB		 746};
747
748
749static int netdev_info_handler(struct nl_msg *msg, void *arg)
750{
751 struct nlattr *tb[NL80211_ATTR_MAX + 1];
752 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
753 struct wiphy_idx_data *info = arg;
754
755 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
756 genlmsg_attrlen(gnlh, 0), NULL);
757
758 if (tb[NL80211_ATTR_WIPHY])
759 info->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
760
01517c8b
JB		 761 if (tb[NL80211_ATTR_IFTYPE])
762 info->nlmode = nla_get_u32(tb[NL80211_ATTR_IFTYPE]);
763
597b94f5
AS		 764 if (tb[NL80211_ATTR_MAC] && info->macaddr)
765 os_memcpy(info->macaddr, nla_data(tb[NL80211_ATTR_MAC]),
766 ETH_ALEN);
767
e32ad281
JB		 768 return NL_SKIP;
769}
770
771
772static int nl80211_get_wiphy_index(struct i802_bss *bss)
773{
774 struct nl_msg *msg;
775 struct wiphy_idx_data data = {
776 .wiphy_idx = -1,
597b94f5 777 .macaddr = NULL,
e32ad281
JB		 778 };
779
780 msg = nlmsg_alloc();
781 if (!msg)
8e12685c 782 return NL80211_IFTYPE_UNSPECIFIED;
e32ad281
JB		 783
784 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE);
785
27ce1d64
AS		 786 if (nl80211_set_iface_id(msg, bss) < 0)
787 goto nla_put_failure;
e32ad281
JB		 788
789 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0)
790 return data.wiphy_idx;
791 msg = NULL;
792nla_put_failure:
793 nlmsg_free(msg);
794 return -1;
795}
796
797
01517c8b
JB		 798static enum nl80211_iftype nl80211_get_ifmode(struct i802_bss *bss)
799{
800 struct nl_msg *msg;
801 struct wiphy_idx_data data = {
597b94f5
AS		 802 .nlmode = NL80211_IFTYPE_UNSPECIFIED,
803 .macaddr = NULL,
01517c8b
JB		 804 };
805
806 msg = nlmsg_alloc();
807 if (!msg)
808 return -1;
809
810 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE);
811
f632e483
AS		 812 if (nl80211_set_iface_id(msg, bss) < 0)
813 goto nla_put_failure;
01517c8b
JB		 814
815 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0)
816 return data.nlmode;
817 msg = NULL;
818nla_put_failure:
819 nlmsg_free(msg);
820 return NL80211_IFTYPE_UNSPECIFIED;
821}
01517c8b
JB		 822
823
597b94f5
AS		 824static int nl80211_get_macaddr(struct i802_bss *bss)
825{
826 struct nl_msg *msg;
827 struct wiphy_idx_data data = {
828 .macaddr = bss->addr,
829 };
830
831 msg = nlmsg_alloc();
832 if (!msg)
833 return NL80211_IFTYPE_UNSPECIFIED;
834
835 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE);
836 if (nl80211_set_iface_id(msg, bss) < 0)
837 goto nla_put_failure;
838
839 return send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data);
840
841nla_put_failure:
842 nlmsg_free(msg);
843 return NL80211_IFTYPE_UNSPECIFIED;
844}
597b94f5
AS		 845
846
e32ad281
JB		 847static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv,
848 struct nl80211_wiphy_data *w)
849{
850 struct nl_msg *msg;
851 int ret = -1;
852
853 msg = nlmsg_alloc();
854 if (!msg)
855 return -1;
856
857 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_BEACONS);
858
859 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, w->wiphy_idx);
860
481234cf 861 ret = send_and_recv(drv->global, w->nl_beacons, msg, NULL, NULL);
e32ad281
JB		 862 msg = NULL;
863 if (ret) {
864 wpa_printf(MSG_DEBUG, "nl80211: Register beacons command "
865 "failed: ret=%d (%s)",
866 ret, strerror(-ret));
867 goto nla_put_failure;
868 }
869 ret = 0;
870nla_put_failure:
871 nlmsg_free(msg);
872 return ret;
873}
874
875
876static void nl80211_recv_beacons(int sock, void *eloop_ctx, void *handle)
877{
878 struct nl80211_wiphy_data *w = eloop_ctx;
34068ac3 879 int res;
e32ad281 880
ee9fc67a 881 wpa_printf(MSG_EXCESSIVE, "nl80211: Beacon event message available");
e32ad281 882
34068ac3
JM		 883 res = nl_recvmsgs(handle, w->nl_cb);
884 if (res) {
885 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d",
886 __func__, res);
887 }
e32ad281
JB		 888}
889
890
891static int process_beacon_event(struct nl_msg *msg, void *arg)
892{
893 struct nl80211_wiphy_data *w = arg;
894 struct wpa_driver_nl80211_data *drv;
895 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
896 struct nlattr *tb[NL80211_ATTR_MAX + 1];
897 union wpa_event_data event;
898
899 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
900 genlmsg_attrlen(gnlh, 0), NULL);
901
902 if (gnlh->cmd != NL80211_CMD_FRAME) {
903 wpa_printf(MSG_DEBUG, "nl80211: Unexpected beacon event? (%d)",
904 gnlh->cmd);
905 return NL_SKIP;
906 }
907
908 if (!tb[NL80211_ATTR_FRAME])
909 return NL_SKIP;
910
911 dl_list_for_each(drv, &w->drvs, struct wpa_driver_nl80211_data,
912 wiphy_list) {
913 os_memset(&event, 0, sizeof(event));
914 event.rx_mgmt.frame = nla_data(tb[NL80211_ATTR_FRAME]);
915 event.rx_mgmt.frame_len = nla_len(tb[NL80211_ATTR_FRAME]);
916 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
917 }
918
919 return NL_SKIP;
920}
921
922
923static struct nl80211_wiphy_data *
924nl80211_get_wiphy_data_ap(struct i802_bss *bss)
925{
926 static DEFINE_DL_LIST(nl80211_wiphys);
927 struct nl80211_wiphy_data *w;
928 int wiphy_idx, found = 0;
929 struct i802_bss *tmp_bss;
930
931 if (bss->wiphy_data != NULL)
932 return bss->wiphy_data;
933
934 wiphy_idx = nl80211_get_wiphy_index(bss);
935
936 dl_list_for_each(w, &nl80211_wiphys, struct nl80211_wiphy_data, list) {
937 if (w->wiphy_idx == wiphy_idx)
938 goto add;
939 }
940
941 /* alloc new one */
942 w = os_zalloc(sizeof(*w));
943 if (w == NULL)
944 return NULL;
945 w->wiphy_idx = wiphy_idx;
946 dl_list_init(&w->bsss);
947 dl_list_init(&w->drvs);
948
949 w->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
950 if (!w->nl_cb) {
951 os_free(w);
952 return NULL;
953 }
954 nl_cb_set(w->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL);
955 nl_cb_set(w->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_beacon_event,
956 w);
957
481234cf
JM		 958 w->nl_beacons = nl_create_handle(bss->drv->global->nl_cb,
959 "wiphy beacons");
960 if (w->nl_beacons == NULL) {
e32ad281
JB		 961 os_free(w);
962 return NULL;
963 }
964
965 if (nl80211_register_beacons(bss->drv, w)) {
966 nl_destroy_handles(&w->nl_beacons);
967 os_free(w);
968 return NULL;
969 }
970
5f65e9f7 971 nl80211_register_eloop_read(&w->nl_beacons, nl80211_recv_beacons, w);
e32ad281
JB		 972
973 dl_list_add(&nl80211_wiphys, &w->list);
974
975add:
976 /* drv entry for this bss already there? */
977 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) {
978 if (tmp_bss->drv == bss->drv) {
979 found = 1;
980 break;
981 }
982 }
983 /* if not add it */
984 if (!found)
985 dl_list_add(&w->drvs, &bss->drv->wiphy_list);
986
987 dl_list_add(&w->bsss, &bss->wiphy_list);
988 bss->wiphy_data = w;
989 return w;
990}
991
992
993static void nl80211_put_wiphy_data_ap(struct i802_bss *bss)
994{
995 struct nl80211_wiphy_data *w = bss->wiphy_data;
996 struct i802_bss *tmp_bss;
997 int found = 0;
998
999 if (w == NULL)
1000 return;
1001 bss->wiphy_data = NULL;
1002 dl_list_del(&bss->wiphy_list);
1003
1004 /* still any for this drv present? */
1005 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) {
1006 if (tmp_bss->drv == bss->drv) {
1007 found = 1;
1008 break;
1009 }
1010 }
1011 /* if not remove it */
1012 if (!found)
1013 dl_list_del(&bss->drv->wiphy_list);
1014
1015 if (!dl_list_empty(&w->bsss))
1016 return;
1017
5f65e9f7 1018 nl80211_destroy_eloop_handle(&w->nl_beacons);
e32ad281
JB		 1019
1020 nl_cb_put(w->nl_cb);
e32ad281
JB		 1021 dl_list_del(&w->list);
1022 os_free(w);
1023}
1024
1025
3f5285e8
JM		 1026static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid)
1027{
a2e40bb6
FF		 1028 struct i802_bss *bss = priv;
1029 struct wpa_driver_nl80211_data *drv = bss->drv;
c2a04078
JM		 1030 if (!drv->associated)
1031 return -1;
1032 os_memcpy(bssid, drv->bssid, ETH_ALEN);
1033 return 0;
3f5285e8
JM		 1034}
1035
1036
3f5285e8
JM		 1037static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid)
1038{
a2e40bb6
FF		 1039 struct i802_bss *bss = priv;
1040 struct wpa_driver_nl80211_data *drv = bss->drv;
fd05d64e
JM		 1041 if (!drv->associated)
1042 return -1;
1043 os_memcpy(ssid, drv->ssid, drv->ssid_len);
1044 return drv->ssid_len;
3f5285e8
JM		 1045}
1046
1047
7524cfb1 1048static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv,
08063178 1049 char *buf, size_t len, int del)
3f5285e8
JM		 1050{
1051 union wpa_event_data event;
1052
1053 os_memset(&event, 0, sizeof(event));
1054 if (len > sizeof(event.interface_status.ifname))
1055 len = sizeof(event.interface_status.ifname) - 1;
1056 os_memcpy(event.interface_status.ifname, buf, len);
1057 event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED :
1058 EVENT_INTERFACE_ADDED;
1059
1060 wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s",
1061 del ? "DEL" : "NEW",
1062 event.interface_status.ifname,
1063 del ? "removed" : "added");
1064
834ee56f
KP		 1065 if (os_strcmp(drv->first_bss->ifname, event.interface_status.ifname) ==
1066 0) {
d1f4942b
JM		 1067 if (del) {
1068 if (drv->if_removed) {
1069 wpa_printf(MSG_DEBUG, "nl80211: if_removed "
1070 "already set - ignore event");
1071 return;
1072 }
7524cfb1 1073 drv->if_removed = 1;
d1f4942b 1074 } else {
834ee56f 1075 if (if_nametoindex(drv->first_bss->ifname) == 0) {
d1f4942b
JM		 1076 wpa_printf(MSG_DEBUG, "nl80211: Interface %s "
1077 "does not exist - ignore "
1078 "RTM_NEWLINK",
834ee56f 1079 drv->first_bss->ifname);
d1f4942b
JM		 1080 return;
1081 }
1082 if (!drv->if_removed) {
1083 wpa_printf(MSG_DEBUG, "nl80211: if_removed "
1084 "already cleared - ignore event");
1085 return;
1086 }
7524cfb1 1087 drv->if_removed = 0;
d1f4942b 1088 }
7524cfb1
JM		 1089 }
1090
08063178 1091 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event);
3f5285e8
JM		 1092}
1093
1094
7524cfb1 1095static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv,
62d680c3 1096 u8 *buf, size_t len)
7524cfb1 1097{
62d680c3 1098 int attrlen, rta_len;
7524cfb1
JM		 1099 struct rtattr *attr;
1100
62d680c3
JM		 1101 attrlen = len;
1102 attr = (struct rtattr *) buf;
7524cfb1
JM		 1103
1104 rta_len = RTA_ALIGN(sizeof(struct rtattr));
1105 while (RTA_OK(attr, attrlen)) {
1106 if (attr->rta_type == IFLA_IFNAME) {
834ee56f
KP		 1107 if (os_strcmp(((char *) attr) + rta_len,
1108 drv->first_bss->ifname) == 0)
7524cfb1
JM		 1109 return 1;
1110 else
1111 break;
1112 }
1113 attr = RTA_NEXT(attr, attrlen);
1114 }
1115
1116 return 0;
1117}
1118
1119
1120static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv,
62d680c3 1121 int ifindex, u8 *buf, size_t len)
7524cfb1
JM		 1122{
1123 if (drv->ifindex == ifindex)
1124 return 1;
1125
62d680c3 1126 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) {
7524cfb1
JM		 1127 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed "
1128 "interface");
49b4b205 1129 wpa_driver_nl80211_finish_drv_init(drv, NULL, 0);
7524cfb1
JM		 1130 return 1;
1131 }
1132
1133 return 0;
1134}
1135
1136
36d84860
BG		 1137static struct wpa_driver_nl80211_data *
1138nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len)
1139{
1140 struct wpa_driver_nl80211_data *drv;
1141 dl_list_for_each(drv, &global->interfaces,
1142 struct wpa_driver_nl80211_data, list) {
1143 if (wpa_driver_nl80211_own_ifindex(drv, idx, buf, len) ||
1144 have_ifidx(drv, idx))
1145 return drv;
1146 }
1147 return NULL;
1148}
1149
1150
62d680c3
JM		 1151static void wpa_driver_nl80211_event_rtm_newlink(void *ctx,
1152 struct ifinfomsg *ifi,
1153 u8 *buf, size_t len)
3f5285e8 1154{
36d84860
BG		 1155 struct nl80211_global *global = ctx;
1156 struct wpa_driver_nl80211_data *drv;
62d680c3
JM		 1157 int attrlen, rta_len;
1158 struct rtattr *attr;
97cfcf64 1159 u32 brid = 0;
aef85ba2 1160 char namebuf[IFNAMSIZ];
3f5285e8 1161
36d84860
BG		 1162 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len);
1163 if (!drv) {
97cfcf64
B		 1164 wpa_printf(MSG_DEBUG, "nl80211: Ignore event for foreign "
1165 "ifindex %d", ifi->ifi_index);
3f5285e8
JM		 1166 return;
1167 }
1168
1169 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x "
1170 "(%s%s%s%s)",
1171 drv->operstate, ifi->ifi_flags,
1172 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "",
1173 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "",
1174 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "",
1175 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : "");
a63063b4
JM		 1176
1177 if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) {
59d24925
JM		 1178 if (if_indextoname(ifi->ifi_index, namebuf) &&
1179 linux_iface_up(drv->global->ioctl_sock,
834ee56f 1180 drv->first_bss->ifname) > 0) {
59d24925
JM		 1181 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down "
1182 "event since interface %s is up", namebuf);
1183 return;
1184 }
a63063b4 1185 wpa_printf(MSG_DEBUG, "nl80211: Interface down");
7d9c3698
JM		 1186 if (drv->ignore_if_down_event) {
1187 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down "
1188 "event generated by mode change");
1189 drv->ignore_if_down_event = 0;
1190 } else {
1191 drv->if_disabled = 1;
1192 wpa_supplicant_event(drv->ctx,
1193 EVENT_INTERFACE_DISABLED, NULL);
1194 }
a63063b4
JM		 1195 }
1196
1197 if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) {
aef85ba2
JM		 1198 if (if_indextoname(ifi->ifi_index, namebuf) &&
1199 linux_iface_up(drv->global->ioctl_sock,
834ee56f 1200 drv->first_bss->ifname) == 0) {
aef85ba2
JM		 1201 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
1202 "event since interface %s is down",
1203 namebuf);
834ee56f 1204 } else if (if_nametoindex(drv->first_bss->ifname) == 0) {
d1f4942b
JM		 1205 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
1206 "event since interface %s does not exist",
834ee56f 1207 drv->first_bss->ifname);
d1f4942b
JM		 1208 } else if (drv->if_removed) {
1209 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
1210 "event since interface %s is marked "
834ee56f 1211 "removed", drv->first_bss->ifname);
aef85ba2
JM		 1212 } else {
1213 wpa_printf(MSG_DEBUG, "nl80211: Interface up");
1214 drv->if_disabled = 0;
1215 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED,
1216 NULL);
1217 }
a63063b4
JM		 1218 }
1219
3f5285e8
JM		 1220 /*
1221 * Some drivers send the association event before the operup event--in
1222 * this case, lifting operstate in wpa_driver_nl80211_set_operstate()
1223 * fails. This will hit us when wpa_supplicant does not need to do
1224 * IEEE 802.1X authentication
1225 */
1226 if (drv->operstate == 1 &&
1227 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP &&
1228 !(ifi->ifi_flags & IFF_RUNNING))
36d84860 1229 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex,
e2d02c29 1230 -1, IF_OPER_UP);
3f5285e8 1231
62d680c3
JM		 1232 attrlen = len;
1233 attr = (struct rtattr *) buf;
3f5285e8
JM		 1234 rta_len = RTA_ALIGN(sizeof(struct rtattr));
1235 while (RTA_OK(attr, attrlen)) {
d8816397 1236 if (attr->rta_type == IFLA_IFNAME) {
7524cfb1 1237 wpa_driver_nl80211_event_link(
08063178 1238 drv,
7524cfb1
JM		 1239 ((char *) attr) + rta_len,
1240 attr->rta_len - rta_len, 0);
97cfcf64
B		 1241 } else if (attr->rta_type == IFLA_MASTER)
1242 brid = nla_get_u32((struct nlattr *) attr);
3f5285e8
JM		 1243 attr = RTA_NEXT(attr, attrlen);
1244 }
97cfcf64
B		 1245
1246 if (ifi->ifi_family == AF_BRIDGE && brid) {
1247 /* device has been added to bridge */
97cfcf64
B		 1248 if_indextoname(brid, namebuf);
1249 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s",
1250 brid, namebuf);
1251 add_ifidx(drv, brid);
1252 }
3f5285e8
JM		 1253}
1254
1255
62d680c3
JM		 1256static void wpa_driver_nl80211_event_rtm_dellink(void *ctx,
1257 struct ifinfomsg *ifi,
1258 u8 *buf, size_t len)
3f5285e8 1259{
36d84860
BG		 1260 struct nl80211_global *global = ctx;
1261 struct wpa_driver_nl80211_data *drv;
62d680c3
JM		 1262 int attrlen, rta_len;
1263 struct rtattr *attr;
97cfcf64 1264 u32 brid = 0;
3f5285e8 1265
36d84860
BG		 1266 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len);
1267 if (!drv) {
1268 wpa_printf(MSG_DEBUG, "nl80211: Ignore dellink event for "
1269 "foreign ifindex %d", ifi->ifi_index);
1270 return;
1271 }
1272
62d680c3
JM		 1273 attrlen = len;
1274 attr = (struct rtattr *) buf;
3f5285e8
JM		 1275
1276 rta_len = RTA_ALIGN(sizeof(struct rtattr));
1277 while (RTA_OK(attr, attrlen)) {
1278 if (attr->rta_type == IFLA_IFNAME) {
7524cfb1 1279 wpa_driver_nl80211_event_link(
08063178 1280 drv,
7524cfb1
JM		 1281 ((char *) attr) + rta_len,
1282 attr->rta_len - rta_len, 1);
97cfcf64
B		 1283 } else if (attr->rta_type == IFLA_MASTER)
1284 brid = nla_get_u32((struct nlattr *) attr);
3f5285e8
JM		 1285 attr = RTA_NEXT(attr, attrlen);
1286 }
97cfcf64
B		 1287
1288 if (ifi->ifi_family == AF_BRIDGE && brid) {
1289 /* device has been removed from bridge */
1290 char namebuf[IFNAMSIZ];
1291 if_indextoname(brid, namebuf);
1292 wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge "
1293 "%s", brid, namebuf);
1294 del_ifidx(drv, brid);
1295 }
3f5285e8
JM		 1296}
1297
1298
c2a04078
JM		 1299static void mlme_event_auth(struct wpa_driver_nl80211_data *drv,
1300 const u8 *frame, size_t len)
1301{
1302 const struct ieee80211_mgmt *mgmt;
1303 union wpa_event_data event;
1304
7d81932d 1305 wpa_printf(MSG_DEBUG, "nl80211: Authenticate event");
c2a04078
JM		 1306 mgmt = (const struct ieee80211_mgmt *) frame;
1307 if (len < 24 + sizeof(mgmt->u.auth)) {
1308 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
1309 "frame");
1310 return;
1311 }
1312
e6b8efeb 1313 os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN);
add9b7a4 1314 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN);
c2a04078
JM		 1315 os_memset(&event, 0, sizeof(event));
1316 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN);
1317 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg);
569fed90
JM		 1318 event.auth.auth_transaction =
1319 le_to_host16(mgmt->u.auth.auth_transaction);
c2a04078
JM		 1320 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code);
1321 if (len > 24 + sizeof(mgmt->u.auth)) {
1322 event.auth.ies = mgmt->u.auth.variable;
1323 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth);
1324 }
1325
1326 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event);
1327}
1328
1329
f5a8d422
JM		 1330static unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv)
1331{
1332 struct nl_msg *msg;
1333 int ret;
1334 struct nl80211_bss_info_arg arg;
1335
1336 os_memset(&arg, 0, sizeof(arg));
1337 msg = nlmsg_alloc();
1338 if (!msg)
1339 goto nla_put_failure;
1340
9fb04070 1341 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
f5a8d422
JM		 1342 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1343
1344 arg.drv = drv;
1345 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
1346 msg = NULL;
1347 if (ret == 0) {
1348 wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the "
1349 "associated BSS from scan results: %u MHz",
1350 arg.assoc_freq);
30158a0d
SD		 1351 if (arg.assoc_freq)
1352 drv->assoc_freq = arg.assoc_freq;
1353 return drv->assoc_freq;
f5a8d422
JM		 1354 }
1355 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
1356 "(%s)", ret, strerror(-ret));
1357nla_put_failure:
1358 nlmsg_free(msg);
1359 return drv->assoc_freq;
1360}
1361
1362
c2a04078
JM		 1363static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv,
1364 const u8 *frame, size_t len)
1365{
1366 const struct ieee80211_mgmt *mgmt;
1367 union wpa_event_data event;
1368 u16 status;
1369
7d81932d 1370 wpa_printf(MSG_DEBUG, "nl80211: Associate event");
c2a04078
JM		 1371 mgmt = (const struct ieee80211_mgmt *) frame;
1372 if (len < 24 + sizeof(mgmt->u.assoc_resp)) {
1373 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
1374 "frame");
1375 return;
1376 }
1377
1378 status = le_to_host16(mgmt->u.assoc_resp.status_code);
1379 if (status != WLAN_STATUS_SUCCESS) {
efa46078 1380 os_memset(&event, 0, sizeof(event));
59ddf221 1381 event.assoc_reject.bssid = mgmt->bssid;
efa46078
JM		 1382 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
1383 event.assoc_reject.resp_ies =
1384 (u8 *) mgmt->u.assoc_resp.variable;
1385 event.assoc_reject.resp_ies_len =
1386 len - 24 - sizeof(mgmt->u.assoc_resp);
1387 }
1388 event.assoc_reject.status_code = status;
1389
1390 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
c2a04078
JM		 1391 return;
1392 }
1393
1394 drv->associated = 1;
1395 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN);
add9b7a4 1396 os_memcpy(drv->prev_bssid, mgmt->sa, ETH_ALEN);
c2a04078
JM		 1397
1398 os_memset(&event, 0, sizeof(event));
1399 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
1400 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable;
1401 event.assoc_info.resp_ies_len =
efa46078 1402 len - 24 - sizeof(mgmt->u.assoc_resp);
c2a04078
JM		 1403 }
1404
4832ecd7
JM		 1405 event.assoc_info.freq = drv->assoc_freq;
1406
c2a04078
JM		 1407 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
1408}
1409
c1bb3e0a 1410
da72a1c1
ZY		 1411static void mlme_event_connect(struct wpa_driver_nl80211_data *drv,
1412 enum nl80211_commands cmd, struct nlattr *status,
1413 struct nlattr *addr, struct nlattr *req_ie,
1414 struct nlattr *resp_ie)
1415{
1416 union wpa_event_data event;
1417
7da2c527
JM		 1418 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
1419 /*
1420 * Avoid reporting two association events that would confuse
1421 * the core code.
1422 */
1423 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) "
1424 "when using userspace SME", cmd);
1425 return;
1426 }
1427
7d81932d
JM		 1428 if (cmd == NL80211_CMD_CONNECT)
1429 wpa_printf(MSG_DEBUG, "nl80211: Connect event");
1430 else if (cmd == NL80211_CMD_ROAM)
1431 wpa_printf(MSG_DEBUG, "nl80211: Roam event");
1432
da72a1c1
ZY		 1433 os_memset(&event, 0, sizeof(event));
1434 if (cmd == NL80211_CMD_CONNECT &&
1435 nla_get_u16(status) != WLAN_STATUS_SUCCESS) {
df89c1c8
JM		 1436 if (addr)
1437 event.assoc_reject.bssid = nla_data(addr);
da72a1c1
ZY		 1438 if (resp_ie) {
1439 event.assoc_reject.resp_ies = nla_data(resp_ie);
1440 event.assoc_reject.resp_ies_len = nla_len(resp_ie);
1441 }
1442 event.assoc_reject.status_code = nla_get_u16(status);
1443 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
1444 return;
1445 }
1446
1447 drv->associated = 1;
add9b7a4 1448 if (addr) {
da72a1c1 1449 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN);
add9b7a4
JM		 1450 os_memcpy(drv->prev_bssid, drv->bssid, ETH_ALEN);
1451 }
da72a1c1
ZY		 1452
1453 if (req_ie) {
1454 event.assoc_info.req_ies = nla_data(req_ie);
1455 event.assoc_info.req_ies_len = nla_len(req_ie);
1456 }
1457 if (resp_ie) {
1458 event.assoc_info.resp_ies = nla_data(resp_ie);
1459 event.assoc_info.resp_ies_len = nla_len(resp_ie);
1460 }
1461
f5a8d422
JM		 1462 event.assoc_info.freq = nl80211_get_assoc_freq(drv);
1463
da72a1c1
ZY		 1464 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
1465}
c2a04078 1466
c1bb3e0a 1467
20f5a4c2 1468static void mlme_event_disconnect(struct wpa_driver_nl80211_data *drv,
3d9975d5
JM		 1469 struct nlattr *reason, struct nlattr *addr,
1470 struct nlattr *by_ap)
20f5a4c2
JM		 1471{
1472 union wpa_event_data data;
a8c5b43a 1473 unsigned int locally_generated = by_ap == NULL;
20f5a4c2
JM		 1474
1475 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
1476 /*
1477 * Avoid reporting two disassociation events that could
1478 * confuse the core code.
1479 */
1480 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect "
1481 "event when using userspace SME");
1482 return;
1483 }
1484
a8c5b43a
CW		 1485 if (drv->ignore_next_local_disconnect) {
1486 drv->ignore_next_local_disconnect = 0;
1487 if (locally_generated) {
1488 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect "
1489 "event triggered during reassociation");
1490 return;
1491 }
1492 wpa_printf(MSG_WARNING, "nl80211: Was expecting local "
1493 "disconnect but got another disconnect "
1494 "event first");
1495 }
1496
7d81932d 1497 wpa_printf(MSG_DEBUG, "nl80211: Disconnect event");
add9b7a4 1498 nl80211_mark_disconnected(drv);
20f5a4c2
JM		 1499 os_memset(&data, 0, sizeof(data));
1500 if (reason)
2e9f078c
JM		 1501 data.deauth_info.reason_code = nla_get_u16(reason);
1502 data.deauth_info.locally_generated = by_ap == NULL;
1503 wpa_supplicant_event(drv->ctx, EVENT_DEAUTH, &data);
20f5a4c2
JM		 1504}
1505
1506
1b487b8b 1507static void mlme_event_ch_switch(struct wpa_driver_nl80211_data *drv,
8d1fdde7
JD		 1508 struct nlattr *ifindex, struct nlattr *freq,
1509 struct nlattr *type, struct nlattr *bw,
1510 struct nlattr *cf1, struct nlattr *cf2)
1b487b8b 1511{
8d1fdde7 1512 struct i802_bss *bss;
1b487b8b
TP		 1513 union wpa_event_data data;
1514 int ht_enabled = 1;
1515 int chan_offset = 0;
8d1fdde7 1516 int ifidx;
1b487b8b
TP		 1517
1518 wpa_printf(MSG_DEBUG, "nl80211: Channel switch event");
1519
8d1fdde7 1520 if (!freq)
1b487b8b
TP		 1521 return;
1522
8d1fdde7
JD		 1523 ifidx = nla_get_u32(ifindex);
1524 for (bss = drv->first_bss; bss; bss = bss->next)
1525 if (bss->ifindex == ifidx)
1526 break;
1527
1528 if (bss == NULL) {
1529 wpa_printf(MSG_WARNING, "nl80211: Unknown ifindex (%d) for channel switch, ignoring",
1530 ifidx);
1531 return;
1b487b8b
TP		 1532 }
1533
8d1fdde7
JD		 1534 if (type) {
1535 switch (nla_get_u32(type)) {
1536 case NL80211_CHAN_NO_HT:
1537 ht_enabled = 0;
1538 break;
1539 case NL80211_CHAN_HT20:
1540 break;
1541 case NL80211_CHAN_HT40PLUS:
1542 chan_offset = 1;
1543 break;
1544 case NL80211_CHAN_HT40MINUS:
1545 chan_offset = -1;
1546 break;
1547 }
1548 }
1549
1550 os_memset(&data, 0, sizeof(data));
1b487b8b
TP		 1551 data.ch_switch.freq = nla_get_u32(freq);
1552 data.ch_switch.ht_enabled = ht_enabled;
1553 data.ch_switch.ch_offset = chan_offset;
8d1fdde7
JD		 1554 if (bw)
1555 data.ch_switch.ch_width = convert2width(nla_get_u32(bw));
1556 if (cf1)
1557 data.ch_switch.cf1 = nla_get_u32(cf1);
1558 if (cf2)
1559 data.ch_switch.cf2 = nla_get_u32(cf2);
1b487b8b 1560
8d1fdde7 1561 bss->freq = data.ch_switch.freq;
1c4ffa87 1562
1b487b8b
TP		 1563 wpa_supplicant_event(drv->ctx, EVENT_CH_SWITCH, &data);
1564}
1565
1566
da1fb17c
JM		 1567static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv,
1568 enum nl80211_commands cmd, struct nlattr *addr)
1569{
1570 union wpa_event_data event;
1571 enum wpa_event_type ev;
1572
1573 if (nla_len(addr) != ETH_ALEN)
1574 return;
1575
1576 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR,
1577 cmd, MAC2STR((u8 *) nla_data(addr)));
1578
1579 if (cmd == NL80211_CMD_AUTHENTICATE)
1580 ev = EVENT_AUTH_TIMED_OUT;
1581 else if (cmd == NL80211_CMD_ASSOCIATE)
1582 ev = EVENT_ASSOC_TIMED_OUT;
1583 else
1584 return;
1585
1586 os_memset(&event, 0, sizeof(event));
1587 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN);
1588 wpa_supplicant_event(drv->ctx, ev, &event);
1589}
1590
1591
5582a5d1 1592static void mlme_event_mgmt(struct wpa_driver_nl80211_data *drv,
da873dbb
JB		 1593 struct nlattr *freq, struct nlattr *sig,
1594 const u8 *frame, size_t len)
58f6fbe0
JM		 1595{
1596 const struct ieee80211_mgmt *mgmt;
1597 union wpa_event_data event;
1598 u16 fc, stype;
da873dbb 1599 int ssi_signal = 0;
f18b7817 1600 int rx_freq = 0;
58f6fbe0 1601
cc2ada86 1602 wpa_printf(MSG_MSGDUMP, "nl80211: Frame event");
58f6fbe0
JM		 1603 mgmt = (const struct ieee80211_mgmt *) frame;
1604 if (len < 24) {
1605 wpa_printf(MSG_DEBUG, "nl80211: Too short action frame");
1606 return;
1607 }
1608
1609 fc = le_to_host16(mgmt->frame_control);
1610 stype = WLAN_FC_GET_STYPE(fc);
1611
da873dbb
JB		 1612 if (sig)
1613 ssi_signal = (s32) nla_get_u32(sig);
1614
58f6fbe0 1615 os_memset(&event, 0, sizeof(event));
5582a5d1 1616 if (freq) {
58f6fbe0 1617 event.rx_action.freq = nla_get_u32(freq);
f18b7817 1618 rx_freq = drv->last_mgmt_freq = event.rx_action.freq;
5582a5d1 1619 }
f18b7817
JM		 1620 wpa_printf(MSG_DEBUG,
1621 "nl80211: RX frame freq=%d ssi_signal=%d stype=%u len=%u",
1622 rx_freq, ssi_signal, stype, (unsigned int) len);
5582a5d1
JB		 1623 if (stype == WLAN_FC_STYPE_ACTION) {
1624 event.rx_action.da = mgmt->da;
1625 event.rx_action.sa = mgmt->sa;
1626 event.rx_action.bssid = mgmt->bssid;
1627 event.rx_action.category = mgmt->u.action.category;
1628 event.rx_action.data = &mgmt->u.action.category + 1;
1629 event.rx_action.len = frame + len - event.rx_action.data;
1630 wpa_supplicant_event(drv->ctx, EVENT_RX_ACTION, &event);
1631 } else {
1632 event.rx_mgmt.frame = frame;
1633 event.rx_mgmt.frame_len = len;
da873dbb 1634 event.rx_mgmt.ssi_signal = ssi_signal;
5582a5d1
JB		 1635 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
1636 }
58f6fbe0
JM		 1637}
1638
1639
a11241fa
JB		 1640static void mlme_event_mgmt_tx_status(struct wpa_driver_nl80211_data *drv,
1641 struct nlattr *cookie, const u8 *frame,
1642 size_t len, struct nlattr *ack)
58f6fbe0
JM		 1643{
1644 union wpa_event_data event;
1645 const struct ieee80211_hdr *hdr;
1646 u16 fc;
58f6fbe0 1647
7d81932d 1648 wpa_printf(MSG_DEBUG, "nl80211: Frame TX status event");
a11241fa
JB		 1649 if (!is_ap_interface(drv->nlmode)) {
1650 u64 cookie_val;
58f6fbe0 1651
a11241fa
JB		 1652 if (!cookie)
1653 return;
1654
1655 cookie_val = nla_get_u64(cookie);
1656 wpa_printf(MSG_DEBUG, "nl80211: Action TX status:"
1657 " cookie=0%llx%s (ack=%d)",
1658 (long long unsigned int) cookie_val,
1659 cookie_val == drv->send_action_cookie ?
1660 " (match)" : " (unknown)", ack != NULL);
1661 if (cookie_val != drv->send_action_cookie)
1662 return;
1663 }
58f6fbe0
JM		 1664
1665 hdr = (const struct ieee80211_hdr *) frame;
1666 fc = le_to_host16(hdr->frame_control);
1667
1668 os_memset(&event, 0, sizeof(event));
1669 event.tx_status.type = WLAN_FC_GET_TYPE(fc);
1670 event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
1671 event.tx_status.dst = hdr->addr1;
1672 event.tx_status.data = frame;
1673 event.tx_status.data_len = len;
1674 event.tx_status.ack = ack != NULL;
1675 wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event);
1676}
1677
1678
0544b242
JM		 1679static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv,
1680 enum wpa_event_type type,
1681 const u8 *frame, size_t len)
1682{
1683 const struct ieee80211_mgmt *mgmt;
1684 union wpa_event_data event;
1685 const u8 *bssid = NULL;
1686 u16 reason_code = 0;
1687
7d81932d
JM		 1688 if (type == EVENT_DEAUTH)
1689 wpa_printf(MSG_DEBUG, "nl80211: Deauthenticate event");
1690 else
1691 wpa_printf(MSG_DEBUG, "nl80211: Disassociate event");
1692
cb30b297
PS		 1693 mgmt = (const struct ieee80211_mgmt *) frame;
1694 if (len >= 24) {
1695 bssid = mgmt->bssid;
1696
add9b7a4
JM		 1697 if ((drv->capa.flags & WPA_DRIVER_FLAGS_SME) &&
1698 !drv->associated &&
1699 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0 &&
1700 os_memcmp(bssid, drv->auth_attempt_bssid, ETH_ALEN) != 0 &&
1701 os_memcmp(bssid, drv->prev_bssid, ETH_ALEN) == 0) {
1702 /*
1703 * Avoid issues with some roaming cases where
1704 * disconnection event for the old AP may show up after
1705 * we have started connection with the new AP.
1706 */
1707 wpa_printf(MSG_DEBUG, "nl80211: Ignore deauth/disassoc event from old AP " MACSTR " when already authenticating with " MACSTR,
1708 MAC2STR(bssid),
1709 MAC2STR(drv->auth_attempt_bssid));
1710 return;
1711 }
1712
cb30b297
PS		 1713 if (drv->associated != 0 &&
1714 os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 &&
1715 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) {
1716 /*
1717 * We have presumably received this deauth as a
1718 * response to a clear_state_mismatch() outgoing
1719 * deauth. Don't let it take us offline!
1720 */
1721 wpa_printf(MSG_DEBUG, "nl80211: Deauth received "
1722 "from Unknown BSSID " MACSTR " -- ignoring",
1723 MAC2STR(bssid));
1724 return;
1725 }
1726 }
1727
add9b7a4 1728 nl80211_mark_disconnected(drv);
0544b242
JM		 1729 os_memset(&event, 0, sizeof(event));
1730
0544b242
JM		 1731 /* Note: Same offset for Reason Code in both frame subtypes */
1732 if (len >= 24 + sizeof(mgmt->u.deauth))
1733 reason_code = le_to_host16(mgmt->u.deauth.reason_code);
1734
1735 if (type == EVENT_DISASSOC) {
3d9975d5 1736 event.disassoc_info.locally_generated =
834ee56f 1737 !os_memcmp(mgmt->sa, drv->first_bss->addr, ETH_ALEN);
0544b242
JM		 1738 event.disassoc_info.addr = bssid;
1739 event.disassoc_info.reason_code = reason_code;
046b26a2
JM		 1740 if (frame + len > mgmt->u.disassoc.variable) {
1741 event.disassoc_info.ie = mgmt->u.disassoc.variable;
1742 event.disassoc_info.ie_len = frame + len -
1743 mgmt->u.disassoc.variable;
1744 }
0544b242 1745 } else {
3d9975d5 1746 event.deauth_info.locally_generated =
834ee56f 1747 !os_memcmp(mgmt->sa, drv->first_bss->addr, ETH_ALEN);
0544b242
JM		 1748 event.deauth_info.addr = bssid;
1749 event.deauth_info.reason_code = reason_code;
046b26a2
JM		 1750 if (frame + len > mgmt->u.deauth.variable) {
1751 event.deauth_info.ie = mgmt->u.deauth.variable;
1752 event.deauth_info.ie_len = frame + len -
1753 mgmt->u.deauth.variable;
1754 }
0544b242
JM		 1755 }
1756
1757 wpa_supplicant_event(drv->ctx, type, &event);
1758}
1759
1760
7d878ca7
JM		 1761static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv,
1762 enum wpa_event_type type,
1763 const u8 *frame, size_t len)
1764{
1765 const struct ieee80211_mgmt *mgmt;
1766 union wpa_event_data event;
1767 u16 reason_code = 0;
1768
7d81932d
JM		 1769 if (type == EVENT_UNPROT_DEAUTH)
1770 wpa_printf(MSG_DEBUG, "nl80211: Unprot Deauthenticate event");
1771 else
1772 wpa_printf(MSG_DEBUG, "nl80211: Unprot Disassociate event");
1773
7d878ca7
JM		 1774 if (len < 24)
1775 return;
1776
1777 mgmt = (const struct ieee80211_mgmt *) frame;
1778
1779 os_memset(&event, 0, sizeof(event));
1780 /* Note: Same offset for Reason Code in both frame subtypes */
1781 if (len >= 24 + sizeof(mgmt->u.deauth))
1782 reason_code = le_to_host16(mgmt->u.deauth.reason_code);
1783
1784 if (type == EVENT_UNPROT_DISASSOC) {
1785 event.unprot_disassoc.sa = mgmt->sa;
1786 event.unprot_disassoc.da = mgmt->da;
1787 event.unprot_disassoc.reason_code = reason_code;
1788 } else {
1789 event.unprot_deauth.sa = mgmt->sa;
1790 event.unprot_deauth.da = mgmt->da;
1791 event.unprot_deauth.reason_code = reason_code;
1792 }
1793
1794 wpa_supplicant_event(drv->ctx, type, &event);
1795}
1796
1797
97279d8d 1798static void mlme_event(struct i802_bss *bss,
da1fb17c 1799 enum nl80211_commands cmd, struct nlattr *frame,
58f6fbe0
JM		 1800 struct nlattr *addr, struct nlattr *timed_out,
1801 struct nlattr *freq, struct nlattr *ack,
da873dbb 1802 struct nlattr *cookie, struct nlattr *sig)
c2a04078 1803{
97279d8d
JM		 1804 struct wpa_driver_nl80211_data *drv = bss->drv;
1805 const u8 *data;
1806 size_t len;
1807
da1fb17c
JM		 1808 if (timed_out && addr) {
1809 mlme_timeout_event(drv, cmd, addr);
1810 return;
1811 }
1812
c2a04078 1813 if (frame == NULL) {
2090a0b4
DS		 1814 wpa_printf(MSG_DEBUG,
1815 "nl80211: MLME event %d (%s) without frame data",
1816 cmd, nl80211_command_to_string(cmd));
c2a04078
JM		 1817 return;
1818 }
1819
97279d8d
JM		 1820 data = nla_data(frame);
1821 len = nla_len(frame);
455299fb 1822 if (len < 4 + 2 * ETH_ALEN) {
2090a0b4
DS		 1823 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s("
1824 MACSTR ") - too short",
1825 cmd, nl80211_command_to_string(cmd), bss->ifname,
1826 MAC2STR(bss->addr));
97279d8d
JM		 1827 return;
1828 }
2090a0b4
DS		 1829 wpa_printf(MSG_MSGDUMP, "nl80211: MLME event %d (%s) on %s(" MACSTR
1830 ") A1=" MACSTR " A2=" MACSTR, cmd,
1831 nl80211_command_to_string(cmd), bss->ifname,
1832 MAC2STR(bss->addr), MAC2STR(data + 4),
1833 MAC2STR(data + 4 + ETH_ALEN));
97279d8d 1834 if (cmd != NL80211_CMD_FRAME_TX_STATUS && !(data[4] & 0x01) &&
455299fb
JM		 1835 os_memcmp(bss->addr, data + 4, ETH_ALEN) != 0 &&
1836 os_memcmp(bss->addr, data + 4 + ETH_ALEN, ETH_ALEN) != 0) {
97279d8d
JM		 1837 wpa_printf(MSG_MSGDUMP, "nl80211: %s: Ignore MLME frame event "
1838 "for foreign address", bss->ifname);
1839 return;
1840 }
c2a04078
JM		 1841 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame",
1842 nla_data(frame), nla_len(frame));
1843
1844 switch (cmd) {
1845 case NL80211_CMD_AUTHENTICATE:
1846 mlme_event_auth(drv, nla_data(frame), nla_len(frame));
1847 break;
1848 case NL80211_CMD_ASSOCIATE:
1849 mlme_event_assoc(drv, nla_data(frame), nla_len(frame));
1850 break;
1851 case NL80211_CMD_DEAUTHENTICATE:
0544b242
JM		 1852 mlme_event_deauth_disassoc(drv, EVENT_DEAUTH,
1853 nla_data(frame), nla_len(frame));
c2a04078
JM		 1854 break;
1855 case NL80211_CMD_DISASSOCIATE:
0544b242
JM		 1856 mlme_event_deauth_disassoc(drv, EVENT_DISASSOC,
1857 nla_data(frame), nla_len(frame));
c2a04078 1858 break;
bd94971e 1859 case NL80211_CMD_FRAME:
da873dbb
JB		 1860 mlme_event_mgmt(drv, freq, sig, nla_data(frame),
1861 nla_len(frame));
58f6fbe0 1862 break;
bd94971e 1863 case NL80211_CMD_FRAME_TX_STATUS:
a11241fa
JB		 1864 mlme_event_mgmt_tx_status(drv, cookie, nla_data(frame),
1865 nla_len(frame), ack);
58f6fbe0 1866 break;
7d878ca7
JM		 1867 case NL80211_CMD_UNPROT_DEAUTHENTICATE:
1868 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH,
1869 nla_data(frame), nla_len(frame));
1870 break;
1871 case NL80211_CMD_UNPROT_DISASSOCIATE:
1872 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC,
1873 nla_data(frame), nla_len(frame));
1874 break;
c2a04078
JM		 1875 default:
1876 break;
1877 }
1878}
1879
1880
a5e1eb20 1881static void mlme_event_michael_mic_failure(struct i802_bss *bss,
35583f3f
JM		 1882 struct nlattr *tb[])
1883{
1884 union wpa_event_data data;
1885
1886 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure");
1887 os_memset(&data, 0, sizeof(data));
1888 if (tb[NL80211_ATTR_MAC]) {
1889 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address",
1890 nla_data(tb[NL80211_ATTR_MAC]),
1891 nla_len(tb[NL80211_ATTR_MAC]));
ad1e68e6 1892 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]);
35583f3f
JM		 1893 }
1894 if (tb[NL80211_ATTR_KEY_SEQ]) {
1895 wpa_hexdump(MSG_DEBUG, "nl80211: TSC",
1896 nla_data(tb[NL80211_ATTR_KEY_SEQ]),
1897 nla_len(tb[NL80211_ATTR_KEY_SEQ]));
1898 }
1899 if (tb[NL80211_ATTR_KEY_TYPE]) {
1900 enum nl80211_key_type key_type =
1901 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]);
1902 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type);
1903 if (key_type == NL80211_KEYTYPE_PAIRWISE)
1904 data.michael_mic_failure.unicast = 1;
1905 } else
1906 data.michael_mic_failure.unicast = 1;
1907
1908 if (tb[NL80211_ATTR_KEY_IDX]) {
1909 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]);
1910 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id);
1911 }
1912
a5e1eb20 1913 wpa_supplicant_event(bss->ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
35583f3f
JM		 1914}
1915
1916
5cc4d64b
JM		 1917static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv,
1918 struct nlattr *tb[])
1919{
1920 if (tb[NL80211_ATTR_MAC] == NULL) {
1921 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined "
1922 "event");
1923 return;
1924 }
1925 os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
b21990b4 1926
5cc4d64b
JM		 1927 drv->associated = 1;
1928 wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined",
1929 MAC2STR(drv->bssid));
1930
1931 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL);
1932}
1933
1934
55777702
JM		 1935static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv,
1936 int cancel_event, struct nlattr *tb[])
1937{
1938 unsigned int freq, chan_type, duration;
1939 union wpa_event_data data;
1940 u64 cookie;
1941
1942 if (tb[NL80211_ATTR_WIPHY_FREQ])
1943 freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]);
1944 else
1945 freq = 0;
1946
1947 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
1948 chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1949 else
1950 chan_type = 0;
1951
1952 if (tb[NL80211_ATTR_DURATION])
1953 duration = nla_get_u32(tb[NL80211_ATTR_DURATION]);
1954 else
1955 duration = 0;
1956
1957 if (tb[NL80211_ATTR_COOKIE])
1958 cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
1959 else
1960 cookie = 0;
1961
1962 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d "
1963 "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))",
1964 cancel_event, freq, chan_type, duration,
1965 (long long unsigned int) cookie,
1966 cookie == drv->remain_on_chan_cookie ? "match" : "unknown");
1967
1968 if (cookie != drv->remain_on_chan_cookie)
1969 return; /* not for us */
1970
531f0331
JB		 1971 if (cancel_event)
1972 drv->pending_remain_on_chan = 0;
55777702
JM		 1973
1974 os_memset(&data, 0, sizeof(data));
1975 data.remain_on_channel.freq = freq;
1976 data.remain_on_channel.duration = duration;
1977 wpa_supplicant_event(drv->ctx, cancel_event ?
1978 EVENT_CANCEL_REMAIN_ON_CHANNEL :
1979 EVENT_REMAIN_ON_CHANNEL, &data);
1980}
1981
1982
6a1ce395
DG		 1983static void mlme_event_ft_event(struct wpa_driver_nl80211_data *drv,
1984 struct nlattr *tb[])
1985{
1986 union wpa_event_data data;
1987
1988 os_memset(&data, 0, sizeof(data));
1989
1990 if (tb[NL80211_ATTR_IE]) {
1991 data.ft_ies.ies = nla_data(tb[NL80211_ATTR_IE]);
1992 data.ft_ies.ies_len = nla_len(tb[NL80211_ATTR_IE]);
1993 }
1994
1995 if (tb[NL80211_ATTR_IE_RIC]) {
1996 data.ft_ies.ric_ies = nla_data(tb[NL80211_ATTR_IE_RIC]);
1997 data.ft_ies.ric_ies_len = nla_len(tb[NL80211_ATTR_IE_RIC]);
1998 }
1999
2000 if (tb[NL80211_ATTR_MAC])
2001 os_memcpy(data.ft_ies.target_ap,
2002 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
2003
2004 wpa_printf(MSG_DEBUG, "nl80211: FT event target_ap " MACSTR,
2005 MAC2STR(data.ft_ies.target_ap));
2006
2007 wpa_supplicant_event(drv->ctx, EVENT_FT_RESPONSE, &data);
2008}
2009
2010
8d923a4a
JM		 2011static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted,
2012 struct nlattr *tb[])
2013{
2014 union wpa_event_data event;
2015 struct nlattr *nl;
2016 int rem;
2017 struct scan_info *info;
2018#define MAX_REPORT_FREQS 50
2019 int freqs[MAX_REPORT_FREQS];
2020 int num_freqs = 0;
2021
536fd62d
JM		 2022 if (drv->scan_for_auth) {
2023 drv->scan_for_auth = 0;
2024 wpa_printf(MSG_DEBUG, "nl80211: Scan results for missing "
2025 "cfg80211 BSS entry");
2026 wpa_driver_nl80211_authenticate_retry(drv);
2027 return;
2028 }
2029
8d923a4a
JM		 2030 os_memset(&event, 0, sizeof(event));
2031 info = &event.scan_info;
2032 info->aborted = aborted;
2033
2034 if (tb[NL80211_ATTR_SCAN_SSIDS]) {
2035 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) {
2036 struct wpa_driver_scan_ssid *s =
2037 &info->ssids[info->num_ssids];
2038 s->ssid = nla_data(nl);
2039 s->ssid_len = nla_len(nl);
3ae3ec27
JM		 2040 wpa_printf(MSG_DEBUG, "nl80211: Scan probed for SSID '%s'",
2041 wpa_ssid_txt(s->ssid, s->ssid_len));
8d923a4a
JM		 2042 info->num_ssids++;
2043 if (info->num_ssids == WPAS_MAX_SCAN_SSIDS)
2044 break;
2045 }
2046 }
2047 if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) {
3ae3ec27
JM		 2048 char msg[200], *pos, *end;
2049 int res;
2050
2051 pos = msg;
2052 end = pos + sizeof(msg);
2053 *pos = '\0';
2054
8d923a4a
JM		 2055 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem)
2056 {
2057 freqs[num_freqs] = nla_get_u32(nl);
3ae3ec27
JM		 2058 res = os_snprintf(pos, end - pos, " %d",
2059 freqs[num_freqs]);
2060 if (res > 0 && end - pos > res)
2061 pos += res;
8d923a4a
JM		 2062 num_freqs++;
2063 if (num_freqs == MAX_REPORT_FREQS - 1)
2064 break;
2065 }
2066 info->freqs = freqs;
2067 info->num_freqs = num_freqs;
3ae3ec27
JM		 2068 wpa_printf(MSG_DEBUG, "nl80211: Scan included frequencies:%s",
2069 msg);
8d923a4a
JM		 2070 }
2071 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event);
2072}
2073
2074
60a972a6
JM		 2075static int get_link_signal(struct nl_msg *msg, void *arg)
2076{
2077 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2078 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2079 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1];
2080 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = {
2081 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 },
95783298 2082 [NL80211_STA_INFO_SIGNAL_AVG] = { .type = NLA_U8 },
60a972a6 2083 };
7ee35bf3
PS		 2084 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1];
2085 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = {
2086 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 },
2087 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 },
2088 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG },
2089 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG },
2090 };
1c5c7273 2091 struct wpa_signal_info *sig_change = arg;
60a972a6
JM		 2092
2093 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2094 genlmsg_attrlen(gnlh, 0), NULL);
2095 if (!tb[NL80211_ATTR_STA_INFO] ||
2096 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX,
2097 tb[NL80211_ATTR_STA_INFO], policy))
2098 return NL_SKIP;
2099 if (!sinfo[NL80211_STA_INFO_SIGNAL])
2100 return NL_SKIP;
2101
7ee35bf3
PS		 2102 sig_change->current_signal =
2103 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]);
2104
95783298
AO		 2105 if (sinfo[NL80211_STA_INFO_SIGNAL_AVG])
2106 sig_change->avg_signal =
2107 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL_AVG]);
2108 else
2109 sig_change->avg_signal = 0;
2110
7ee35bf3
PS		 2111 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) {
2112 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX,
2113 sinfo[NL80211_STA_INFO_TX_BITRATE],
2114 rate_policy)) {
2115 sig_change->current_txrate = 0;
2116 } else {
2117 if (rinfo[NL80211_RATE_INFO_BITRATE]) {
2118 sig_change->current_txrate =
2119 nla_get_u16(rinfo[
2120 NL80211_RATE_INFO_BITRATE]) * 100;
2121 }
2122 }
2123 }
2124
60a972a6
JM		 2125 return NL_SKIP;
2126}
2127
2128
2129static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv,
1c5c7273 2130 struct wpa_signal_info *sig)
60a972a6
JM		 2131{
2132 struct nl_msg *msg;
2133
7ee35bf3
PS		 2134 sig->current_signal = -9999;
2135 sig->current_txrate = 0;
60a972a6
JM		 2136
2137 msg = nlmsg_alloc();
2138 if (!msg)
2139 return -ENOMEM;
2140
9fb04070 2141 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION);
60a972a6
JM		 2142
2143 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2144 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
2145
2146 return send_and_recv_msgs(drv, msg, get_link_signal, sig);
2147 nla_put_failure:
5883168a 2148 nlmsg_free(msg);
60a972a6
JM		 2149 return -ENOBUFS;
2150}
2151
2152
7ee35bf3
PS		 2153static int get_link_noise(struct nl_msg *msg, void *arg)
2154{
2155 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2156 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2157 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
2158 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
2159 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
2160 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
2161 };
1c5c7273 2162 struct wpa_signal_info *sig_change = arg;
7ee35bf3
PS		 2163
2164 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2165 genlmsg_attrlen(gnlh, 0), NULL);
2166
2167 if (!tb[NL80211_ATTR_SURVEY_INFO]) {
2168 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!");
2169 return NL_SKIP;
2170 }
2171
2172 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
2173 tb[NL80211_ATTR_SURVEY_INFO],
2174 survey_policy)) {
2175 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested "
2176 "attributes!");
2177 return NL_SKIP;
2178 }
2179
2180 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY])
2181 return NL_SKIP;
2182
2183 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) !=
2184 sig_change->frequency)
2185 return NL_SKIP;
2186
2187 if (!sinfo[NL80211_SURVEY_INFO_NOISE])
2188 return NL_SKIP;
2189
2190 sig_change->current_noise =
2191 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
2192
2193 return NL_SKIP;
2194}
2195
2196
2197static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv,
1c5c7273 2198 struct wpa_signal_info *sig_change)
7ee35bf3
PS		 2199{
2200 struct nl_msg *msg;
2201
2202 sig_change->current_noise = 9999;
2203 sig_change->frequency = drv->assoc_freq;
2204
2205 msg = nlmsg_alloc();
2206 if (!msg)
2207 return -ENOMEM;
2208
9fb04070 2209 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
7ee35bf3
PS		 2210
2211 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2212
2213 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change);
2214 nla_put_failure:
5883168a 2215 nlmsg_free(msg);
7ee35bf3
PS		 2216 return -ENOBUFS;
2217}
2218
2219
577db0ae
GM		 2220static int get_noise_for_scan_results(struct nl_msg *msg, void *arg)
2221{
2222 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2223 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2224 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
2225 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
2226 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
2227 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
2228 };
2229 struct wpa_scan_results *scan_results = arg;
2230 struct wpa_scan_res *scan_res;
2231 size_t i;
2232
2233 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2234 genlmsg_attrlen(gnlh, 0), NULL);
2235
2236 if (!tb[NL80211_ATTR_SURVEY_INFO]) {
2237 wpa_printf(MSG_DEBUG, "nl80211: Survey data missing");
2238 return NL_SKIP;
2239 }
2240
2241 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
2242 tb[NL80211_ATTR_SURVEY_INFO],
2243 survey_policy)) {
2244 wpa_printf(MSG_DEBUG, "nl80211: Failed to parse nested "
2245 "attributes");
2246 return NL_SKIP;
2247 }
2248
2249 if (!sinfo[NL80211_SURVEY_INFO_NOISE])
2250 return NL_SKIP;
2251
2252 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY])
2253 return NL_SKIP;
2254
2255 for (i = 0; i < scan_results->num; ++i) {
2256 scan_res = scan_results->res[i];
2257 if (!scan_res)
2258 continue;
2259 if ((int) nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) !=
2260 scan_res->freq)
2261 continue;
2262 if (!(scan_res->flags & WPA_SCAN_NOISE_INVALID))
2263 continue;
2264 scan_res->noise = (s8)
2265 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
2266 scan_res->flags &= ~WPA_SCAN_NOISE_INVALID;
2267 }
2268
2269 return NL_SKIP;
2270}
2271
2272
2273static int nl80211_get_noise_for_scan_results(
2274 struct wpa_driver_nl80211_data *drv,
2275 struct wpa_scan_results *scan_res)
2276{
2277 struct nl_msg *msg;
2278
2279 msg = nlmsg_alloc();
2280 if (!msg)
2281 return -ENOMEM;
2282
2283 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
2284
2285 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2286
2287 return send_and_recv_msgs(drv, msg, get_noise_for_scan_results,
2288 scan_res);
2289 nla_put_failure:
9e088e74 2290 nlmsg_free(msg);
577db0ae
GM		 2291 return -ENOBUFS;
2292}
2293
2294
93910401
JM		 2295static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv,
2296 struct nlattr *tb[])
2297{
2298 static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
2299 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
2300 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 },
2301 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
0d7e5a3a 2302 [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 },
93910401
JM		 2303 };
2304 struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1];
2305 enum nl80211_cqm_rssi_threshold_event event;
b625473c 2306 union wpa_event_data ed;
1c5c7273 2307 struct wpa_signal_info sig;
7ee35bf3 2308 int res;
93910401
JM		 2309
2310 if (tb[NL80211_ATTR_CQM] == NULL ||
2311 nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM],
2312 cqm_policy)) {
2313 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event");
2314 return;
2315 }
2316
0d7e5a3a
JB		 2317 os_memset(&ed, 0, sizeof(ed));
2318
2319 if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) {
2320 if (!tb[NL80211_ATTR_MAC])
2321 return;
2322 os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]),
2323 ETH_ALEN);
2324 wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed);
2325 return;
2326 }
2327
93910401
JM		 2328 if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL)
2329 return;
2330 event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]);
b625473c 2331
93910401
JM		 2332 if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) {
2333 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
2334 "event: RSSI high");
b625473c 2335 ed.signal_change.above_threshold = 1;
93910401
JM		 2336 } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) {
2337 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
2338 "event: RSSI low");
b625473c
JM		 2339 ed.signal_change.above_threshold = 0;
2340 } else
2341 return;
2342
60a972a6
JM		 2343 res = nl80211_get_link_signal(drv, &sig);
2344 if (res == 0) {
7ee35bf3
PS		 2345 ed.signal_change.current_signal = sig.current_signal;
2346 ed.signal_change.current_txrate = sig.current_txrate;
2347 wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d",
2348 sig.current_signal, sig.current_txrate);
2349 }
2350
2351 res = nl80211_get_link_noise(drv, &sig);
2352 if (res == 0) {
2353 ed.signal_change.current_noise = sig.current_noise;
2354 wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm",
2355 sig.current_noise);
60a972a6
JM		 2356 }
2357
b625473c 2358 wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed);
93910401
JM		 2359}
2360
2361
18d2ba08
JM		 2362static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv,
2363 struct nlattr **tb)
2364{
2365 u8 *addr;
2366 union wpa_event_data data;
2367
2368 if (tb[NL80211_ATTR_MAC] == NULL)
2369 return;
2370 addr = nla_data(tb[NL80211_ATTR_MAC]);
2371 wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr));
5f310a9e 2372
61cbe2ff 2373 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) {
5f310a9e
JM		 2374 u8 *ies = NULL;
2375 size_t ies_len = 0;
2376 if (tb[NL80211_ATTR_IE]) {
2377 ies = nla_data(tb[NL80211_ATTR_IE]);
2378 ies_len = nla_len(tb[NL80211_ATTR_IE]);
2379 }
2380 wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len);
2381 drv_event_assoc(drv->ctx, addr, ies, ies_len, 0);
2382 return;
2383 }
2384
18d2ba08
JM		 2385 if (drv->nlmode != NL80211_IFTYPE_ADHOC)
2386 return;
2387
2388 os_memset(&data, 0, sizeof(data));
2389 os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN);
2390 wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data);
2391}
2392
2393
ef985058
JM		 2394static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv,
2395 struct nlattr **tb)
2396{
2397 u8 *addr;
2398 union wpa_event_data data;
2399
2400 if (tb[NL80211_ATTR_MAC] == NULL)
2401 return;
2402 addr = nla_data(tb[NL80211_ATTR_MAC]);
2403 wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR,
2404 MAC2STR(addr));
5f310a9e 2405
61cbe2ff 2406 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) {
5f310a9e
JM		 2407 drv_event_disassoc(drv->ctx, addr);
2408 return;
2409 }
2410
ef985058
JM		 2411 if (drv->nlmode != NL80211_IFTYPE_ADHOC)
2412 return;
2413
2414 os_memset(&data, 0, sizeof(data));
2415 os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN);
2416 wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data);
2417}
2418
2419
b14a210c
JB		 2420static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv,
2421 struct nlattr **tb)
2422{
2423 struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA];
2424 static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = {
2425 [NL80211_REKEY_DATA_KEK] = {
2426 .minlen = NL80211_KEK_LEN,
2427 .maxlen = NL80211_KEK_LEN,
2428 },
2429 [NL80211_REKEY_DATA_KCK] = {
2430 .minlen = NL80211_KCK_LEN,
2431 .maxlen = NL80211_KCK_LEN,
2432 },
2433 [NL80211_REKEY_DATA_REPLAY_CTR] = {
2434 .minlen = NL80211_REPLAY_CTR_LEN,
2435 .maxlen = NL80211_REPLAY_CTR_LEN,
2436 },
2437 };
2438 union wpa_event_data data;
2439
2440 if (!tb[NL80211_ATTR_MAC])
2441 return;
2442 if (!tb[NL80211_ATTR_REKEY_DATA])
2443 return;
2444 if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA,
2445 tb[NL80211_ATTR_REKEY_DATA], rekey_policy))
2446 return;
2447 if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR])
2448 return;
2449
2450 os_memset(&data, 0, sizeof(data));
2451 data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]);
2452 wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR,
2453 MAC2STR(data.driver_gtk_rekey.bssid));
2454 data.driver_gtk_rekey.replay_ctr =
2455 nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]);
2456 wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter",
2457 data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN);
2458 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data);
2459}
2460
2461
c36d5242
JM		 2462static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv,
2463 struct nlattr **tb)
2464{
2465 struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE];
2466 static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = {
2467 [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 },
2468 [NL80211_PMKSA_CANDIDATE_BSSID] = {
2469 .minlen = ETH_ALEN,
2470 .maxlen = ETH_ALEN,
2471 },
2472 [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG },
2473 };
2474 union wpa_event_data data;
2475
7d81932d
JM		 2476 wpa_printf(MSG_DEBUG, "nl80211: PMKSA candidate event");
2477
c36d5242
JM		 2478 if (!tb[NL80211_ATTR_PMKSA_CANDIDATE])
2479 return;
2480 if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE,
2481 tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy))
2482 return;
2483 if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] ||
2484 !cand[NL80211_PMKSA_CANDIDATE_BSSID])
2485 return;
2486
2487 os_memset(&data, 0, sizeof(data));
2488 os_memcpy(data.pmkid_candidate.bssid,
2489 nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN);
2490 data.pmkid_candidate.index =
2491 nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]);
2492 data.pmkid_candidate.preauth =
2493 cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL;
2494 wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data);
2495}
2496
2497
39718852
JB		 2498static void nl80211_client_probe_event(struct wpa_driver_nl80211_data *drv,
2499 struct nlattr **tb)
2500{
2501 union wpa_event_data data;
2502
7d81932d
JM		 2503 wpa_printf(MSG_DEBUG, "nl80211: Probe client event");
2504
39718852
JB		 2505 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_ACK])
2506 return;
2507
2508 os_memset(&data, 0, sizeof(data));
2509 os_memcpy(data.client_poll.addr,
2510 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
2511
2512 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_CLIENT_POLL_OK, &data);
2513}
2514
2515
6201b052
JM		 2516static void nl80211_tdls_oper_event(struct wpa_driver_nl80211_data *drv,
2517 struct nlattr **tb)
2518{
2519 union wpa_event_data data;
2520
2521 wpa_printf(MSG_DEBUG, "nl80211: TDLS operation event");
2522
2523 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_TDLS_OPERATION])
2524 return;
2525
2526 os_memset(&data, 0, sizeof(data));
2527 os_memcpy(data.tdls.peer, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
2528 switch (nla_get_u8(tb[NL80211_ATTR_TDLS_OPERATION])) {
2529 case NL80211_TDLS_SETUP:
2530 wpa_printf(MSG_DEBUG, "nl80211: TDLS setup request for peer "
2531 MACSTR, MAC2STR(data.tdls.peer));
2532 data.tdls.oper = TDLS_REQUEST_SETUP;
2533 break;
2534 case NL80211_TDLS_TEARDOWN:
2535 wpa_printf(MSG_DEBUG, "nl80211: TDLS teardown request for peer "
2536 MACSTR, MAC2STR(data.tdls.peer));
2537 data.tdls.oper = TDLS_REQUEST_TEARDOWN;
2538 break;
2539 default:
2540 wpa_printf(MSG_DEBUG, "nl80211: Unsupported TDLS operatione "
2541 "event");
2542 return;
2543 }
2544 if (tb[NL80211_ATTR_REASON_CODE]) {
2545 data.tdls.reason_code =
2546 nla_get_u16(tb[NL80211_ATTR_REASON_CODE]);
2547 }
2548
2549 wpa_supplicant_event(drv->ctx, EVENT_TDLS, &data);
2550}
2551
2552
7239ea7f
ST		 2553static void nl80211_stop_ap(struct wpa_driver_nl80211_data *drv,
2554 struct nlattr **tb)
2555{
2556 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_UNAVAILABLE, NULL);
2557}
2558
2559
3140803b
RM		 2560static void nl80211_connect_failed_event(struct wpa_driver_nl80211_data *drv,
2561 struct nlattr **tb)
2562{
2563 union wpa_event_data data;
2564 u32 reason;
2565
2566 wpa_printf(MSG_DEBUG, "nl80211: Connect failed event");
2567
2568 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_CONN_FAILED_REASON])
2569 return;
2570
2571 os_memset(&data, 0, sizeof(data));
2572 os_memcpy(data.connect_failed_reason.addr,
2573 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
2574
2575 reason = nla_get_u32(tb[NL80211_ATTR_CONN_FAILED_REASON]);
2576 switch (reason) {
2577 case NL80211_CONN_FAIL_MAX_CLIENTS:
2578 wpa_printf(MSG_DEBUG, "nl80211: Max client reached");
2579 data.connect_failed_reason.code = MAX_CLIENT_REACHED;
2580 break;
2581 case NL80211_CONN_FAIL_BLOCKED_CLIENT:
2582 wpa_printf(MSG_DEBUG, "nl80211: Blocked client " MACSTR
2583 " tried to connect",
2584 MAC2STR(data.connect_failed_reason.addr));
2585 data.connect_failed_reason.code = BLOCKED_CLIENT;
2586 break;
2587 default:
2588 wpa_printf(MSG_DEBUG, "nl8021l: Unknown connect failed reason "
2589 "%u", reason);
2590 return;
2591 }
2592
2593 wpa_supplicant_event(drv->ctx, EVENT_CONNECT_FAILED_REASON, &data);
2594}
2595
2596
04be54fa
SW		 2597static void nl80211_radar_event(struct wpa_driver_nl80211_data *drv,
2598 struct nlattr **tb)
2599{
2600 union wpa_event_data data;
2601 enum nl80211_radar_event event_type;
2602
2603 if (!tb[NL80211_ATTR_WIPHY_FREQ] || !tb[NL80211_ATTR_RADAR_EVENT])
2604 return;
2605
2606 os_memset(&data, 0, sizeof(data));
cd3b0700
MK		 2607 data.dfs_event.freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]);
2608 event_type = nla_get_u32(tb[NL80211_ATTR_RADAR_EVENT]);
04be54fa 2609
846de15d
JD		 2610 /* Check HT params */
2611 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
2612 data.dfs_event.ht_enabled = 1;
2613 data.dfs_event.chan_offset = 0;
2614
2615 switch (nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])) {
2616 case NL80211_CHAN_NO_HT:
2617 data.dfs_event.ht_enabled = 0;
2618 break;
2619 case NL80211_CHAN_HT20:
2620 break;
2621 case NL80211_CHAN_HT40PLUS:
2622 data.dfs_event.chan_offset = 1;
2623 break;
2624 case NL80211_CHAN_HT40MINUS:
2625 data.dfs_event.chan_offset = -1;
2626 break;
2627 }
2628 }
2629
2630 /* Get VHT params */
884f1a3c
JM		 2631 if (tb[NL80211_ATTR_CHANNEL_WIDTH])
2632 data.dfs_event.chan_width =
2633 convert2width(nla_get_u32(
2634 tb[NL80211_ATTR_CHANNEL_WIDTH]));
2635 if (tb[NL80211_ATTR_CENTER_FREQ1])
2636 data.dfs_event.cf1 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]);
846de15d
JD		 2637 if (tb[NL80211_ATTR_CENTER_FREQ2])
2638 data.dfs_event.cf2 = nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]);
2639
2640 wpa_printf(MSG_DEBUG, "nl80211: DFS event on freq %d MHz, ht: %d, offset: %d, width: %d, cf1: %dMHz, cf2: %dMHz",
2641 data.dfs_event.freq, data.dfs_event.ht_enabled,
2642 data.dfs_event.chan_offset, data.dfs_event.chan_width,
2643 data.dfs_event.cf1, data.dfs_event.cf2);
04be54fa
SW		 2644
2645 switch (event_type) {
2646 case NL80211_RADAR_DETECTED:
2647 wpa_supplicant_event(drv->ctx, EVENT_DFS_RADAR_DETECTED, &data);
2648 break;
2649 case NL80211_RADAR_CAC_FINISHED:
2650 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_FINISHED, &data);
2651 break;
2652 case NL80211_RADAR_CAC_ABORTED:
2653 wpa_supplicant_event(drv->ctx, EVENT_DFS_CAC_ABORTED, &data);
2654 break;
2655 case NL80211_RADAR_NOP_FINISHED:
2656 wpa_supplicant_event(drv->ctx, EVENT_DFS_NOP_FINISHED, &data);
2657 break;
2658 default:
2659 wpa_printf(MSG_DEBUG, "nl80211: Unknown radar event %d "
2660 "received", event_type);
2661 break;
2662 }
2663}
2664
2665
3088e4e5
JB		 2666static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb,
2667 int wds)
02bb32c3
JB		 2668{
2669 struct wpa_driver_nl80211_data *drv = bss->drv;
2670 union wpa_event_data event;
02bb32c3
JB		 2671
2672 if (!tb[NL80211_ATTR_MAC])
2673 return;
2674
02bb32c3 2675 os_memset(&event, 0, sizeof(event));
341eebee 2676 event.rx_from_unknown.bssid = bss->addr;
02bb32c3 2677 event.rx_from_unknown.addr = nla_data(tb[NL80211_ATTR_MAC]);
3088e4e5 2678 event.rx_from_unknown.wds = wds;
02bb32c3
JB		 2679
2680 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event);
2681}
2682
2683
a5e1eb20
SE		 2684static void do_process_drv_event(struct i802_bss *bss, int cmd,
2685 struct nlattr **tb)
97865538 2686{
a5e1eb20 2687 struct wpa_driver_nl80211_data *drv = bss->drv;
795baf77 2688 union wpa_event_data data;
a5e1eb20 2689
2090a0b4
DS		 2690 wpa_printf(MSG_DEBUG, "nl80211: Drv Event %d (%s) received for %s",
2691 cmd, nl80211_command_to_string(cmd), bss->ifname);
2692
b1f625e0 2693 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED &&
d6c9aab8
JB		 2694 (cmd == NL80211_CMD_NEW_SCAN_RESULTS ||
2695 cmd == NL80211_CMD_SCAN_ABORTED)) {
834ee56f 2696 wpa_driver_nl80211_set_mode(drv->first_bss,
b1f625e0
EP		 2697 drv->ap_scan_as_station);
2698 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
ad1e68e6
JM		 2699 }
2700
d6c9aab8 2701 switch (cmd) {
d942a79e 2702 case NL80211_CMD_TRIGGER_SCAN:
565110cd 2703 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan trigger");
a771c07d 2704 drv->scan_state = SCAN_STARTED;
d942a79e 2705 break;
d21c63b9 2706 case NL80211_CMD_START_SCHED_SCAN:
565110cd 2707 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan started");
a771c07d 2708 drv->scan_state = SCHED_SCAN_STARTED;
d21c63b9
LC		 2709 break;
2710 case NL80211_CMD_SCHED_SCAN_STOPPED:
565110cd 2711 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Sched scan stopped");
a771c07d 2712 drv->scan_state = SCHED_SCAN_STOPPED;
d21c63b9
LC		 2713 wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL);
2714 break;
97865538 2715 case NL80211_CMD_NEW_SCAN_RESULTS:
565110cd
JM		 2716 wpa_dbg(drv->ctx, MSG_DEBUG,
2717 "nl80211: New scan results available");
a771c07d 2718 drv->scan_state = SCAN_COMPLETED;
97865538
JM		 2719 drv->scan_complete_events = 1;
2720 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
2721 drv->ctx);
8d923a4a 2722 send_scan_event(drv, 0, tb);
97865538 2723 break;
d21c63b9 2724 case NL80211_CMD_SCHED_SCAN_RESULTS:
565110cd
JM		 2725 wpa_dbg(drv->ctx, MSG_DEBUG,
2726 "nl80211: New sched scan results available");
a771c07d 2727 drv->scan_state = SCHED_SCAN_RESULTS;
d21c63b9
LC		 2728 send_scan_event(drv, 0, tb);
2729 break;
97865538 2730 case NL80211_CMD_SCAN_ABORTED:
565110cd 2731 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Scan aborted");
a771c07d 2732 drv->scan_state = SCAN_ABORTED;
97865538
JM		 2733 /*
2734 * Need to indicate that scan results are available in order
2735 * not to make wpa_supplicant stop its scanning.
2736 */
2737 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
2738 drv->ctx);
8d923a4a 2739 send_scan_event(drv, 1, tb);
97865538 2740 break;
c2a04078
JM		 2741 case NL80211_CMD_AUTHENTICATE:
2742 case NL80211_CMD_ASSOCIATE:
2743 case NL80211_CMD_DEAUTHENTICATE:
2744 case NL80211_CMD_DISASSOCIATE:
bd94971e 2745 case NL80211_CMD_FRAME_TX_STATUS:
7d878ca7
JM		 2746 case NL80211_CMD_UNPROT_DEAUTHENTICATE:
2747 case NL80211_CMD_UNPROT_DISASSOCIATE:
97279d8d 2748 mlme_event(bss, cmd, tb[NL80211_ATTR_FRAME],
58f6fbe0
JM		 2749 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT],
2750 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK],
da873dbb
JB		 2751 tb[NL80211_ATTR_COOKIE],
2752 tb[NL80211_ATTR_RX_SIGNAL_DBM]);
c2a04078 2753 break;
da72a1c1
ZY		 2754 case NL80211_CMD_CONNECT:
2755 case NL80211_CMD_ROAM:
d6c9aab8 2756 mlme_event_connect(drv, cmd,
da72a1c1
ZY		 2757 tb[NL80211_ATTR_STATUS_CODE],
2758 tb[NL80211_ATTR_MAC],
2759 tb[NL80211_ATTR_REQ_IE],
2760 tb[NL80211_ATTR_RESP_IE]);
2761 break;
1b487b8b 2762 case NL80211_CMD_CH_SWITCH_NOTIFY:
8d1fdde7
JD		 2763 mlme_event_ch_switch(drv,
2764 tb[NL80211_ATTR_IFINDEX],
2765 tb[NL80211_ATTR_WIPHY_FREQ],
2766 tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE],
2767 tb[NL80211_ATTR_CHANNEL_WIDTH],
2768 tb[NL80211_ATTR_CENTER_FREQ1],
2769 tb[NL80211_ATTR_CENTER_FREQ2]);
1b487b8b 2770 break;
da72a1c1 2771 case NL80211_CMD_DISCONNECT:
20f5a4c2 2772 mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE],
3d9975d5
JM		 2773 tb[NL80211_ATTR_MAC],
2774 tb[NL80211_ATTR_DISCONNECTED_BY_AP]);
da72a1c1 2775 break;
35583f3f 2776 case NL80211_CMD_MICHAEL_MIC_FAILURE:
a5e1eb20 2777 mlme_event_michael_mic_failure(bss, tb);
35583f3f 2778 break;
5cc4d64b
JM		 2779 case NL80211_CMD_JOIN_IBSS:
2780 mlme_event_join_ibss(drv, tb);
2781 break;
55777702
JM		 2782 case NL80211_CMD_REMAIN_ON_CHANNEL:
2783 mlme_event_remain_on_channel(drv, 0, tb);
2784 break;
2785 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL:
2786 mlme_event_remain_on_channel(drv, 1, tb);
2787 break;
93910401
JM		 2788 case NL80211_CMD_NOTIFY_CQM:
2789 nl80211_cqm_event(drv, tb);
2790 break;
33c5deb8
JM		 2791 case NL80211_CMD_REG_CHANGE:
2792 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change");
795baf77
AS		 2793 if (tb[NL80211_ATTR_REG_INITIATOR] == NULL)
2794 break;
2795 os_memset(&data, 0, sizeof(data));
2796 switch (nla_get_u8(tb[NL80211_ATTR_REG_INITIATOR])) {
2797 case NL80211_REGDOM_SET_BY_CORE:
2798 data.channel_list_changed.initiator =
2799 REGDOM_SET_BY_CORE;
2800 break;
2801 case NL80211_REGDOM_SET_BY_USER:
2802 data.channel_list_changed.initiator =
2803 REGDOM_SET_BY_USER;
2804 break;
2805 case NL80211_REGDOM_SET_BY_DRIVER:
2806 data.channel_list_changed.initiator =
2807 REGDOM_SET_BY_DRIVER;
2808 break;
2809 case NL80211_REGDOM_SET_BY_COUNTRY_IE:
2810 data.channel_list_changed.initiator =
2811 REGDOM_SET_BY_COUNTRY_IE;
2812 break;
2813 default:
2814 wpa_printf(MSG_DEBUG, "nl80211: Unknown reg change initiator %d received",
2815 nla_get_u8(tb[NL80211_ATTR_REG_INITIATOR]));
2816 break;
2817 }
33c5deb8 2818 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED,
795baf77 2819 &data);
33c5deb8
JM		 2820 break;
2821 case NL80211_CMD_REG_BEACON_HINT:
2822 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint");
2823 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED,
2824 NULL);
2825 break;
18d2ba08
JM		 2826 case NL80211_CMD_NEW_STATION:
2827 nl80211_new_station_event(drv, tb);
2828 break;
ef985058
JM		 2829 case NL80211_CMD_DEL_STATION:
2830 nl80211_del_station_event(drv, tb);
2831 break;
b14a210c
JB		 2832 case NL80211_CMD_SET_REKEY_OFFLOAD:
2833 nl80211_rekey_offload_event(drv, tb);
2834 break;
c36d5242
JM		 2835 case NL80211_CMD_PMKSA_CANDIDATE:
2836 nl80211_pmksa_candidate_event(drv, tb);
2837 break;
39718852
JB		 2838 case NL80211_CMD_PROBE_CLIENT:
2839 nl80211_client_probe_event(drv, tb);
2840 break;
6201b052
JM		 2841 case NL80211_CMD_TDLS_OPER:
2842 nl80211_tdls_oper_event(drv, tb);
2843 break;
3140803b
RM		 2844 case NL80211_CMD_CONN_FAILED:
2845 nl80211_connect_failed_event(drv, tb);
2846 break;
6a1ce395
DG		 2847 case NL80211_CMD_FT_EVENT:
2848 mlme_event_ft_event(drv, tb);
2849 break;
04be54fa
SW		 2850 case NL80211_CMD_RADAR_DETECT:
2851 nl80211_radar_event(drv, tb);
2852 break;
7239ea7f
ST		 2853 case NL80211_CMD_STOP_AP:
2854 nl80211_stop_ap(drv, tb);
2855 break;
97865538 2856 default:
565110cd
JM		 2857 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: Ignored unknown event "
2858 "(cmd=%d)", cmd);
97865538
JM		 2859 break;
2860 }
d6c9aab8
JB		 2861}
2862
2863
2864static int process_drv_event(struct nl_msg *msg, void *arg)
2865{
2866 struct wpa_driver_nl80211_data *drv = arg;
2867 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2868 struct nlattr *tb[NL80211_ATTR_MAX + 1];
a5e1eb20
SE		 2869 struct i802_bss *bss;
2870 int ifidx = -1;
d6c9aab8
JB		 2871
2872 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2873 genlmsg_attrlen(gnlh, 0), NULL);
2874
d3aaef80 2875 if (tb[NL80211_ATTR_IFINDEX]) {
a5e1eb20
SE		 2876 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
2877
834ee56f 2878 for (bss = drv->first_bss; bss; bss = bss->next)
d3aaef80
DS		 2879 if (ifidx == -1 || ifidx == bss->ifindex) {
2880 do_process_drv_event(bss, gnlh->cmd, tb);
2881 return NL_SKIP;
2882 }
2883 wpa_printf(MSG_DEBUG,
2884 "nl80211: Ignored event (cmd=%d) for foreign interface (ifindex %d)",
2885 gnlh->cmd, ifidx);
2886 } else if (tb[NL80211_ATTR_WDEV]) {
2887 u64 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]);
2888 wpa_printf(MSG_DEBUG, "nl80211: Process event on P2P device");
834ee56f 2889 for (bss = drv->first_bss; bss; bss = bss->next) {
d3aaef80
DS		 2890 if (bss->wdev_id_set && wdev_id == bss->wdev_id) {
2891 do_process_drv_event(bss, gnlh->cmd, tb);
2892 return NL_SKIP;
2893 }
d6c9aab8 2894 }
d3aaef80
DS		 2895 wpa_printf(MSG_DEBUG,
2896 "nl80211: Ignored event (cmd=%d) for foreign interface (wdev 0x%llx)",
2897 gnlh->cmd, (long long unsigned int) wdev_id);
d6c9aab8
JB		 2898 }
2899
d6c9aab8
JB		 2900 return NL_SKIP;
2901}
2902
2903
2904static int process_global_event(struct nl_msg *msg, void *arg)
2905{
2906 struct nl80211_global *global = arg;
2907 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2908 struct nlattr *tb[NL80211_ATTR_MAX + 1];
24b5bd8b 2909 struct wpa_driver_nl80211_data *drv, *tmp;
d6c9aab8 2910 int ifidx = -1;
a5e1eb20 2911 struct i802_bss *bss;
54d4ba42 2912 u64 wdev_id = 0;
d3aaef80 2913 int wdev_id_set = 0;
d6c9aab8
JB		 2914
2915 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2916 genlmsg_attrlen(gnlh, 0), NULL);
2917
2918 if (tb[NL80211_ATTR_IFINDEX])
2919 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
d3aaef80
DS		 2920 else if (tb[NL80211_ATTR_WDEV]) {
2921 wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]);
2922 wdev_id_set = 1;
2923 }
d6c9aab8 2924
24b5bd8b
JB		 2925 dl_list_for_each_safe(drv, tmp, &global->interfaces,
2926 struct wpa_driver_nl80211_data, list) {
834ee56f 2927 for (bss = drv->first_bss; bss; bss = bss->next) {
d3aaef80
DS		 2928 if ((ifidx == -1 && !wdev_id_set) ||
2929 ifidx == bss->ifindex ||
2930 (wdev_id_set && bss->wdev_id_set &&
2931 wdev_id == bss->wdev_id)) {
a5e1eb20
SE		 2932 do_process_drv_event(bss, gnlh->cmd, tb);
2933 return NL_SKIP;
2934 }
2935 }
d6c9aab8 2936 }
97865538
JM		 2937
2938 return NL_SKIP;
2939}
2940
2941
cc7a48d1
JB		 2942static int process_bss_event(struct nl_msg *msg, void *arg)
2943{
a11241fa 2944 struct i802_bss *bss = arg;
cc7a48d1
JB		 2945 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2946 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2947
2948 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2949 genlmsg_attrlen(gnlh, 0), NULL);
2950
2090a0b4
DS		 2951 wpa_printf(MSG_DEBUG, "nl80211: BSS Event %d (%s) received for %s",
2952 gnlh->cmd, nl80211_command_to_string(gnlh->cmd),
2953 bss->ifname);
2954
cc7a48d1 2955 switch (gnlh->cmd) {
a11241fa
JB		 2956 case NL80211_CMD_FRAME:
2957 case NL80211_CMD_FRAME_TX_STATUS:
97279d8d 2958 mlme_event(bss, gnlh->cmd, tb[NL80211_ATTR_FRAME],
a11241fa
JB		 2959 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT],
2960 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK],
da873dbb
JB		 2961 tb[NL80211_ATTR_COOKIE],
2962 tb[NL80211_ATTR_RX_SIGNAL_DBM]);
a11241fa 2963 break;
02bb32c3 2964 case NL80211_CMD_UNEXPECTED_FRAME:
3088e4e5
JB		 2965 nl80211_spurious_frame(bss, tb, 0);
2966 break;
2967 case NL80211_CMD_UNEXPECTED_4ADDR_FRAME:
2968 nl80211_spurious_frame(bss, tb, 1);
02bb32c3 2969 break;
cc7a48d1
JB		 2970 default:
2971 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event "
2972 "(cmd=%d)", gnlh->cmd);
2973 break;
2974 }
2975
2976 return NL_SKIP;
2977}
2978
2979
97865538 2980static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx,
5582a5d1 2981 void *handle)
97865538 2982{
a4ae123c 2983 struct nl_cb *cb = eloop_ctx;
34068ac3 2984 int res;
97865538 2985
cc2ada86 2986 wpa_printf(MSG_MSGDUMP, "nl80211: Event message available");
97865538 2987
34068ac3
JM		 2988 res = nl_recvmsgs(handle, cb);
2989 if (res) {
2990 wpa_printf(MSG_INFO, "nl80211: %s->nl_recvmsgs failed: %d",
2991 __func__, res);
2992 }
97865538
JM		 2993}
2994
2995
6d158490
LR		 2996/**
2997 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain
2998 * @priv: driver_nl80211 private data
2999 * @alpha2_arg: country to which to switch to
3000 * Returns: 0 on success, -1 on failure
3001 *
3002 * This asks nl80211 to set the regulatory domain for given
3003 * country ISO / IEC alpha2.
3004 */
3005static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg)
3006{
a2e40bb6
FF		 3007 struct i802_bss *bss = priv;
3008 struct wpa_driver_nl80211_data *drv = bss->drv;
6d158490
LR		 3009 char alpha2[3];
3010 struct nl_msg *msg;
3011
3012 msg = nlmsg_alloc();
3013 if (!msg)
e785c2ba 3014 return -ENOMEM;
6d158490
LR		 3015
3016 alpha2[0] = alpha2_arg[0];
3017 alpha2[1] = alpha2_arg[1];
3018 alpha2[2] = '\0';
3019
9fb04070 3020 nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG);
6d158490
LR		 3021
3022 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2);
3023 if (send_and_recv_msgs(drv, msg, NULL, NULL))
3024 return -EINVAL;
3025 return 0;
3026nla_put_failure:
5883168a 3027 nlmsg_free(msg);
6d158490
LR		 3028 return -EINVAL;
3029}
3030
3031
f0793bf1
JM		 3032static int nl80211_get_country(struct nl_msg *msg, void *arg)
3033{
3034 char *alpha2 = arg;
3035 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
3036 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3037
3038 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3039 genlmsg_attrlen(gnlh, 0), NULL);
3040 if (!tb_msg[NL80211_ATTR_REG_ALPHA2]) {
3041 wpa_printf(MSG_DEBUG, "nl80211: No country information available");
3042 return NL_SKIP;
3043 }
3044 os_strlcpy(alpha2, nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]), 3);
3045 return NL_SKIP;
3046}
3047
3048
3049static int wpa_driver_nl80211_get_country(void *priv, char *alpha2)
3050{
3051 struct i802_bss *bss = priv;
3052 struct wpa_driver_nl80211_data *drv = bss->drv;
3053 struct nl_msg *msg;
3054 int ret;
3055
3056 msg = nlmsg_alloc();
3057 if (!msg)
3058 return -ENOMEM;
3059
3060 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG);
3061 alpha2[0] = '\0';
3062 ret = send_and_recv_msgs(drv, msg, nl80211_get_country, alpha2);
3063 if (!alpha2[0])
3064 ret = -1;
3065
3066 return ret;
3067}
3068
3069
43245552
DJ		 3070static int protocol_feature_handler(struct nl_msg *msg, void *arg)
3071{
3072 u32 *feat = arg;
3073 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
3074 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3075
3076 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3077 genlmsg_attrlen(gnlh, 0), NULL);
3078
3079 if (tb_msg[NL80211_ATTR_PROTOCOL_FEATURES])
3080 *feat = nla_get_u32(tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]);
3081
3082 return NL_SKIP;
3083}
3084
3085
3086static u32 get_nl80211_protocol_features(struct wpa_driver_nl80211_data *drv)
3087{
3088 u32 feat = 0;
3089 struct nl_msg *msg;
3090
3091 msg = nlmsg_alloc();
3092 if (!msg)
3093 goto nla_put_failure;
3094
3095 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_PROTOCOL_FEATURES);
3096 if (send_and_recv_msgs(drv, msg, protocol_feature_handler, &feat) == 0)
3097 return feat;
3098
3099 msg = NULL;
3100nla_put_failure:
3101 nlmsg_free(msg);
3102 return 0;
3103}
3104
3105
80bc75f1 3106struct wiphy_info_data {
8cd6b7bc 3107 struct wpa_driver_nl80211_data *drv;
e8b5e24e
JB		 3108 struct wpa_driver_capa *capa;
3109
4752147d
IP		 3110 unsigned int num_multichan_concurrent;
3111
e8b5e24e 3112 unsigned int error:1;
61cbe2ff 3113 unsigned int device_ap_sme:1;
39718852 3114 unsigned int poll_command_supported:1;
32ab4855 3115 unsigned int data_tx_status:1;
536062f2 3116 unsigned int monitor_supported:1;
43245552
DJ		 3117 unsigned int auth_supported:1;
3118 unsigned int connect_supported:1;
3119 unsigned int p2p_go_supported:1;
3120 unsigned int p2p_client_supported:1;
3121 unsigned int p2p_concurrent:1;
1c4ffa87 3122 unsigned int channel_switch_supported:1;
429dd9af 3123 unsigned int set_qos_map_supported:1;
80bc75f1
JM		 3124};
3125
3126
562c9d97
AN		 3127static unsigned int probe_resp_offload_support(int supp_protocols)
3128{
3129 unsigned int prot = 0;
3130
3131 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS)
3132 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS;
3133 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2)
3134 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2;
3135 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P)
3136 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P;
3137 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U)
3138 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING;
3139
3140 return prot;
3141}
3142
3143
5f439107
JM		 3144static void wiphy_info_supported_iftypes(struct wiphy_info_data *info,
3145 struct nlattr *tb)
80bc75f1 3146{
5f439107
JM		 3147 struct nlattr *nl_mode;
3148 int i;
3149
3150 if (tb == NULL)
3151 return;
3152
3153 nla_for_each_nested(nl_mode, tb, i) {
3154 switch (nla_type(nl_mode)) {
3155 case NL80211_IFTYPE_AP:
3156 info->capa->flags |= WPA_DRIVER_FLAGS_AP;
3157 break;
65d52fc1
BR		 3158 case NL80211_IFTYPE_ADHOC:
3159 info->capa->flags |= WPA_DRIVER_FLAGS_IBSS;
3160 break;
7aad838c
NS		 3161 case NL80211_IFTYPE_P2P_DEVICE:
3162 info->capa->flags |=
3163 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE;
3164 break;
5f439107
JM		 3165 case NL80211_IFTYPE_P2P_GO:
3166 info->p2p_go_supported = 1;
3167 break;
3168 case NL80211_IFTYPE_P2P_CLIENT:
3169 info->p2p_client_supported = 1;
3170 break;
3171 case NL80211_IFTYPE_MONITOR:
3172 info->monitor_supported = 1;
3173 break;
3174 }
3175 }
3176}
3177
3178
3179static int wiphy_info_iface_comb_process(struct wiphy_info_data *info,
3180 struct nlattr *nl_combi)
3181{
3182 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB];
3183 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT];
3184 struct nlattr *nl_limit, *nl_mode;
3185 int err, rem_limit, rem_mode;
3186 int combination_has_p2p = 0, combination_has_mgd = 0;
7626850d
JB		 3187 static struct nla_policy
3188 iface_combination_policy[NUM_NL80211_IFACE_COMB] = {
3189 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED },
3190 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 },
3191 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG },
3192 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 },
f295d0c8 3193 [NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS] = { .type = NLA_U32 },
7626850d
JB		 3194 },
3195 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = {
3196 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED },
3197 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 },
3198 };
80bc75f1 3199
5f439107
JM		 3200 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB,
3201 nl_combi, iface_combination_policy);
3202 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] ||
3203 !tb_comb[NL80211_IFACE_COMB_MAXNUM] ||
3204 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS])
3205 return 0; /* broken combination */
3206
f295d0c8
SW		 3207 if (tb_comb[NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS])
3208 info->capa->flags |= WPA_DRIVER_FLAGS_RADAR;
3209
5f439107
JM		 3210 nla_for_each_nested(nl_limit, tb_comb[NL80211_IFACE_COMB_LIMITS],
3211 rem_limit) {
3212 err = nla_parse_nested(tb_limit, MAX_NL80211_IFACE_LIMIT,
3213 nl_limit, iface_limit_policy);
3214 if (err || !tb_limit[NL80211_IFACE_LIMIT_TYPES])
3215 return 0; /* broken combination */
3216
3217 nla_for_each_nested(nl_mode,
3218 tb_limit[NL80211_IFACE_LIMIT_TYPES],
3219 rem_mode) {
3220 int ift = nla_type(nl_mode);
3221 if (ift == NL80211_IFTYPE_P2P_GO ||
3222 ift == NL80211_IFTYPE_P2P_CLIENT)
3223 combination_has_p2p = 1;
3224 if (ift == NL80211_IFTYPE_STATION)
3225 combination_has_mgd = 1;
3226 }
3227 if (combination_has_p2p && combination_has_mgd)
3228 break;
3229 }
3230
3231 if (combination_has_p2p && combination_has_mgd) {
3232 info->p2p_concurrent = 1;
4752147d
IP		 3233 info->num_multichan_concurrent =
3234 nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]);
5f439107
JM		 3235 return 1;
3236 }
3237
3238 return 0;
3239}
3240
3241
3242static void wiphy_info_iface_comb(struct wiphy_info_data *info,
3243 struct nlattr *tb)
3244{
3245 struct nlattr *nl_combi;
3246 int rem_combi;
3247
3248 if (tb == NULL)
3249 return;
3250
3251 nla_for_each_nested(nl_combi, tb, rem_combi) {
3252 if (wiphy_info_iface_comb_process(info, nl_combi) > 0)
3253 break;
3254 }
3255}
3256
3257
3258static void wiphy_info_supp_cmds(struct wiphy_info_data *info,
3259 struct nlattr *tb)
3260{
3261 struct nlattr *nl_cmd;
3262 int i;
3263
3264 if (tb == NULL)
3265 return;
3266
3267 nla_for_each_nested(nl_cmd, tb, i) {
3268 switch (nla_get_u32(nl_cmd)) {
3269 case NL80211_CMD_AUTHENTICATE:
3270 info->auth_supported = 1;
3271 break;
3272 case NL80211_CMD_CONNECT:
3273 info->connect_supported = 1;
3274 break;
3275 case NL80211_CMD_START_SCHED_SCAN:
3276 info->capa->sched_scan_supported = 1;
3277 break;
3278 case NL80211_CMD_PROBE_CLIENT:
3279 info->poll_command_supported = 1;
3280 break;
1c4ffa87
AO		 3281 case NL80211_CMD_CHANNEL_SWITCH:
3282 info->channel_switch_supported = 1;
3283 break;
429dd9af
JM		 3284 case NL80211_CMD_SET_QOS_MAP:
3285 info->set_qos_map_supported = 1;
3286 break;
5f439107
JM		 3287 }
3288 }
3289}
3290
3291
bee25cc9
JM		 3292static void wiphy_info_cipher_suites(struct wiphy_info_data *info,
3293 struct nlattr *tb)
3294{
3295 int i, num;
3296 u32 *ciphers;
3297
3298 if (tb == NULL)
3299 return;
3300
3301 num = nla_len(tb) / sizeof(u32);
3302 ciphers = nla_data(tb);
3303 for (i = 0; i < num; i++) {
3304 u32 c = ciphers[i];
3305
3306 wpa_printf(MSG_DEBUG, "nl80211: Supported cipher %02x-%02x-%02x:%d",
3307 c >> 24, (c >> 16) & 0xff,
3308 (c >> 8) & 0xff, c & 0xff);
3309 switch (c) {
3310 case WLAN_CIPHER_SUITE_CCMP_256:
3311 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP_256;
3312 break;
3313 case WLAN_CIPHER_SUITE_GCMP_256:
3314 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP_256;
3315 break;
3316 case WLAN_CIPHER_SUITE_CCMP:
3317 info->capa->enc |= WPA_DRIVER_CAPA_ENC_CCMP;
3318 break;
3319 case WLAN_CIPHER_SUITE_GCMP:
3320 info->capa->enc |= WPA_DRIVER_CAPA_ENC_GCMP;
3321 break;
3322 case WLAN_CIPHER_SUITE_TKIP:
3323 info->capa->enc |= WPA_DRIVER_CAPA_ENC_TKIP;
3324 break;
3325 case WLAN_CIPHER_SUITE_WEP104:
3326 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP104;
3327 break;
3328 case WLAN_CIPHER_SUITE_WEP40:
3329 info->capa->enc |= WPA_DRIVER_CAPA_ENC_WEP40;
3330 break;
3331 case WLAN_CIPHER_SUITE_AES_CMAC:
3332 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP;
3333 break;
3334 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
3335 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_128;
3336 break;
3337 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
3338 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_GMAC_256;
3339 break;
3340 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
3341 info->capa->enc |= WPA_DRIVER_CAPA_ENC_BIP_CMAC_256;
3342 break;
3343 }
3344 }
3345}
3346
3347
5f439107
JM		 3348static void wiphy_info_max_roc(struct wpa_driver_capa *capa,
3349 struct nlattr *tb)
3350{
5f439107
JM		 3351 if (tb)
3352 capa->max_remain_on_chan = nla_get_u32(tb);
3353}
3354
3355
3356static void wiphy_info_tdls(struct wpa_driver_capa *capa, struct nlattr *tdls,
3357 struct nlattr *ext_setup)
3358{
3359 if (tdls == NULL)
3360 return;
3361
3362 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported");
3363 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT;
3364
3365 if (ext_setup) {
3366 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup");
3367 capa->flags |= WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP;
3368 }
3369}
3370
3371
3372static void wiphy_info_feature_flags(struct wiphy_info_data *info,
3373 struct nlattr *tb)
3374{
3375 u32 flags;
3376 struct wpa_driver_capa *capa = info->capa;
3377
3378 if (tb == NULL)
3379 return;
3380
3381 flags = nla_get_u32(tb);
3382
3383 if (flags & NL80211_FEATURE_SK_TX_STATUS)
3384 info->data_tx_status = 1;
3385
3386 if (flags & NL80211_FEATURE_INACTIVITY_TIMER)
3387 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER;
3388
3389 if (flags & NL80211_FEATURE_SAE)
3390 capa->flags |= WPA_DRIVER_FLAGS_SAE;
3391
3392 if (flags & NL80211_FEATURE_NEED_OBSS_SCAN)
3393 capa->flags |= WPA_DRIVER_FLAGS_OBSS_SCAN;
3394}
3395
3396
3397static void wiphy_info_probe_resp_offload(struct wpa_driver_capa *capa,
3398 struct nlattr *tb)
3399{
3400 u32 protocols;
3401
3402 if (tb == NULL)
3403 return;
3404
3405 protocols = nla_get_u32(tb);
3406 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response offload in AP "
3407 "mode");
3408 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD;
3409 capa->probe_resp_offloads = probe_resp_offload_support(protocols);
3410}
3411
3412
3413static int wiphy_info_handler(struct nl_msg *msg, void *arg)
3414{
3415 struct nlattr *tb[NL80211_ATTR_MAX + 1];
3416 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3417 struct wiphy_info_data *info = arg;
3418 struct wpa_driver_capa *capa = info->capa;
8cd6b7bc 3419 struct wpa_driver_nl80211_data *drv = info->drv;
5f439107 3420
80bc75f1
JM		 3421 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3422 genlmsg_attrlen(gnlh, 0), NULL);
3423
5fbcb45d 3424 if (tb[NL80211_ATTR_WIPHY_NAME])
24f051eb 3425 os_strlcpy(drv->phyname,
5fbcb45d
AS		 3426 nla_get_string(tb[NL80211_ATTR_WIPHY_NAME]),
3427 sizeof(drv->phyname));
80bc75f1 3428 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS])
e8b5e24e 3429 capa->max_scan_ssids =
80bc75f1
JM		 3430 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]);
3431
d21c63b9 3432 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS])
e8b5e24e 3433 capa->max_sched_scan_ssids =
d21c63b9
LC		 3434 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]);
3435
bd525934 3436 if (tb[NL80211_ATTR_MAX_MATCH_SETS])
e8b5e24e 3437 capa->max_match_sets =
bd525934
LC		 3438 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]);
3439
3c4ca363
VN		 3440 if (tb[NL80211_ATTR_MAC_ACL_MAX])
3441 capa->max_acl_mac_addrs =
3442 nla_get_u8(tb[NL80211_ATTR_MAC_ACL_MAX]);
3443
5f439107
JM		 3444 wiphy_info_supported_iftypes(info, tb[NL80211_ATTR_SUPPORTED_IFTYPES]);
3445 wiphy_info_iface_comb(info, tb[NL80211_ATTR_INTERFACE_COMBINATIONS]);
3446 wiphy_info_supp_cmds(info, tb[NL80211_ATTR_SUPPORTED_COMMANDS]);
bee25cc9 3447 wiphy_info_cipher_suites(info, tb[NL80211_ATTR_CIPHER_SUITES]);
93d11400 3448
e8b5e24e
JB		 3449 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) {
3450 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based "
3451 "off-channel TX");
3452 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX;
3453 }
3454
3455 if (tb[NL80211_ATTR_ROAM_SUPPORT]) {
3456 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming");
3457 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION;
3458 }
5dfca53f 3459
5f439107
JM		 3460 wiphy_info_max_roc(capa,
3461 tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]);
004ba773 3462
70619a5d
EP		 3463 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD])
3464 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD;
3465
5f439107
JM		 3466 wiphy_info_tdls(capa, tb[NL80211_ATTR_TDLS_SUPPORT],
3467 tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]);
03ea1786 3468
61cbe2ff
JB		 3469 if (tb[NL80211_ATTR_DEVICE_AP_SME])
3470 info->device_ap_sme = 1;
3471
5f439107
JM		 3472 wiphy_info_feature_flags(info, tb[NL80211_ATTR_FEATURE_FLAGS]);
3473 wiphy_info_probe_resp_offload(capa,
3474 tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]);
562c9d97 3475
8cd6b7bc
JB		 3476 if (tb[NL80211_ATTR_EXT_CAPA] && tb[NL80211_ATTR_EXT_CAPA_MASK] &&
3477 drv->extended_capa == NULL) {
3478 drv->extended_capa =
3479 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA]));
3480 if (drv->extended_capa) {
3481 os_memcpy(drv->extended_capa,
3482 nla_data(tb[NL80211_ATTR_EXT_CAPA]),
3483 nla_len(tb[NL80211_ATTR_EXT_CAPA]));
3484 drv->extended_capa_len =
3485 nla_len(tb[NL80211_ATTR_EXT_CAPA]);
3486 }
3487 drv->extended_capa_mask =
3488 os_malloc(nla_len(tb[NL80211_ATTR_EXT_CAPA]));
3489 if (drv->extended_capa_mask) {
3490 os_memcpy(drv->extended_capa_mask,
3491 nla_data(tb[NL80211_ATTR_EXT_CAPA]),
3492 nla_len(tb[NL80211_ATTR_EXT_CAPA]));
3493 } else {
3494 os_free(drv->extended_capa);
3495 drv->extended_capa = NULL;
3496 drv->extended_capa_len = 0;
3497 }
3498 }
3499
80bc75f1
JM		 3500 return NL_SKIP;
3501}
3502
3503
3504static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv,
3505 struct wiphy_info_data *info)
3506{
43245552 3507 u32 feat;
80bc75f1
JM		 3508 struct nl_msg *msg;
3509
3510 os_memset(info, 0, sizeof(*info));
e8b5e24e 3511 info->capa = &drv->capa;
8cd6b7bc 3512 info->drv = drv;
89e07afb 3513
80bc75f1
JM		 3514 msg = nlmsg_alloc();
3515 if (!msg)
3516 return -1;
3517
43245552
DJ		 3518 feat = get_nl80211_protocol_features(drv);
3519 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)
3520 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY);
3521 else
3522 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY);
80bc75f1 3523
43245552 3524 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP);
834ee56f 3525 if (nl80211_set_iface_id(msg, drv->first_bss) < 0)
f632e483 3526 goto nla_put_failure;
80bc75f1 3527
43245552
DJ		 3528 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info))
3529 return -1;
3530
3531 if (info->auth_supported)
3532 drv->capa.flags |= WPA_DRIVER_FLAGS_SME;
3533 else if (!info->connect_supported) {
3534 wpa_printf(MSG_INFO, "nl80211: Driver does not support "
3535 "authentication/association or connect commands");
3536 info->error = 1;
3537 }
3538
3539 if (info->p2p_go_supported && info->p2p_client_supported)
3540 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE;
3541 if (info->p2p_concurrent) {
3542 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
3543 "interface (driver advertised support)");
3544 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
3545 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
3546 }
4752147d 3547 if (info->num_multichan_concurrent > 1) {
43245552
DJ		 3548 wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel "
3549 "concurrent (driver advertised support)");
4752147d
IP		 3550 drv->capa.num_multichan_concurrent =
3551 info->num_multichan_concurrent;
43245552 3552 }
b691dcb1
IP		 3553
3554 /* default to 5000 since early versions of mac80211 don't set it */
3555 if (!drv->capa.max_remain_on_chan)
3556 drv->capa.max_remain_on_chan = 5000;
3557
43245552 3558 return 0;
80bc75f1
JM		 3559nla_put_failure:
3560 nlmsg_free(msg);
3561 return -1;
3562}
3563
3564
93d11400 3565static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
80bc75f1
JM		 3566{
3567 struct wiphy_info_data info;
3568 if (wpa_driver_nl80211_get_info(drv, &info))
93d11400 3569 return -1;
e8b5e24e
JB		 3570
3571 if (info.error)
3572 return -1;
3573
80bc75f1 3574 drv->has_capability = 1;
1b2a72e8
JM		 3575 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
3576 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
3577 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
3578 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
291b6068
JM		 3579 drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
3580 WPA_DRIVER_AUTH_SHARED |
3581 WPA_DRIVER_AUTH_LEAP;
1b2a72e8 3582
871f4dd0 3583 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES;
0194fedb 3584 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE;
2fee890a 3585 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
e1bd4e19 3586
e5091674 3587 if (!info.device_ap_sme) {
e1bd4e19 3588 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS;
0194fedb 3589
e5091674
JM		 3590 /*
3591 * No AP SME is currently assumed to also indicate no AP MLME
3592 * in the driver/firmware.
3593 */
3594 drv->capa.flags |= WPA_DRIVER_FLAGS_AP_MLME;
3595 }
3596
61cbe2ff 3597 drv->device_ap_sme = info.device_ap_sme;
39718852 3598 drv->poll_command_supported = info.poll_command_supported;
32ab4855 3599 drv->data_tx_status = info.data_tx_status;
1c4ffa87 3600 drv->channel_switch_supported = info.channel_switch_supported;
429dd9af
JM		 3601 if (info.set_qos_map_supported)
3602 drv->capa.flags |= WPA_DRIVER_FLAGS_QOS_MAPPING;
61cbe2ff 3603
a11241fa 3604 /*
73a3c6ff
FF		 3605 * If poll command and tx status are supported, mac80211 is new enough
3606 * to have everything we need to not need monitor interfaces.
a11241fa 3607 */
73a3c6ff 3608 drv->use_monitor = !info.poll_command_supported || !info.data_tx_status;
a11241fa 3609
536062f2
JM		 3610 if (drv->device_ap_sme && drv->use_monitor) {
3611 /*
3612 * Non-mac80211 drivers may not support monitor interface.
3613 * Make sure we do not get stuck with incorrect capability here
3614 * by explicitly testing this.
3615 */
3616 if (!info.monitor_supported) {
3617 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor "
3618 "with device_ap_sme since no monitor mode "
3619 "support detected");
3620 drv->use_monitor = 0;
3621 }
3622 }
3623
a11241fa
JB		 3624 /*
3625 * If we aren't going to use monitor interfaces, but the
3626 * driver doesn't support data TX status, we won't get TX
3627 * status for EAPOL frames.
3628 */
3629 if (!drv->use_monitor && !info.data_tx_status)
3630 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
3631
93d11400 3632 return 0;
80bc75f1
JM		 3633}
3634
3635
b088cf82
JM		 3636#ifdef ANDROID
3637static int android_genl_ctrl_resolve(struct nl_handle *handle,
3638 const char *name)
3639{
3640 /*
3641 * Android ICS has very minimal genl_ctrl_resolve() implementation, so
3642 * need to work around that.
3643 */
3644 struct nl_cache *cache = NULL;
3645 struct genl_family *nl80211 = NULL;
3646 int id = -1;
3647
3648 if (genl_ctrl_alloc_cache(handle, &cache) < 0) {
3649 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
3650 "netlink cache");
3651 goto fail;
3652 }
3653
3654 nl80211 = genl_ctrl_search_by_name(cache, name);
3655 if (nl80211 == NULL)
3656 goto fail;
3657
3658 id = genl_family_get_id(nl80211);
3659
3660fail:
3661 if (nl80211)
3662 genl_family_put(nl80211);
3663 if (cache)
3664 nl_cache_free(cache);
3665
3666 return id;
3667}
3668#define genl_ctrl_resolve android_genl_ctrl_resolve
3669#endif /* ANDROID */
3670
3671
2a7b66f5
BG		 3672static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global)
3673{
d6c9aab8
JB		 3674 int ret;
3675
2a7b66f5
BG		 3676 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
3677 if (global->nl_cb == NULL) {
3678 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
3679 "callbacks");
3680 return -1;
3681 }
3682
481234cf
JM		 3683 global->nl = nl_create_handle(global->nl_cb, "nl");
3684 if (global->nl == NULL)
d6c9aab8 3685 goto err;
276e2d67 3686
481234cf 3687 global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211");
335d42b1 3688 if (global->nl80211_id < 0) {
276e2d67
BG		 3689 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not "
3690 "found");
d6c9aab8 3691 goto err;
276e2d67
BG		 3692 }
3693
481234cf
JM		 3694 global->nl_event = nl_create_handle(global->nl_cb, "event");
3695 if (global->nl_event == NULL)
d6c9aab8 3696 goto err;
9fff9fdc 3697
d6c9aab8 3698 ret = nl_get_multicast_id(global, "nl80211", "scan");
97865538 3699 if (ret >= 0)
481234cf 3700 ret = nl_socket_add_membership(global->nl_event, ret);
97865538
JM		 3701 if (ret < 0) {
3702 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
3703 "membership for scan events: %d (%s)",
3704 ret, strerror(-ret));
d6c9aab8 3705 goto err;
97865538 3706 }
c2a04078 3707
d6c9aab8 3708 ret = nl_get_multicast_id(global, "nl80211", "mlme");
c2a04078 3709 if (ret >= 0)
481234cf 3710 ret = nl_socket_add_membership(global->nl_event, ret);
c2a04078
JM		 3711 if (ret < 0) {
3712 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
3713 "membership for mlme events: %d (%s)",
3714 ret, strerror(-ret));
d6c9aab8 3715 goto err;
c2a04078 3716 }
c2a04078 3717
d6c9aab8 3718 ret = nl_get_multicast_id(global, "nl80211", "regulatory");
33c5deb8 3719 if (ret >= 0)
481234cf 3720 ret = nl_socket_add_membership(global->nl_event, ret);
33c5deb8
JM		 3721 if (ret < 0) {
3722 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast "
3723 "membership for regulatory events: %d (%s)",
3724 ret, strerror(-ret));
3725 /* Continue without regulatory events */
3726 }
3727
d6c9aab8
JB		 3728 nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
3729 no_seq_check, NULL);
3730 nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
3731 process_global_event, global);
3732
5f65e9f7
JB		 3733 nl80211_register_eloop_read(&global->nl_event,
3734 wpa_driver_nl80211_event_receive,
3735 global->nl_cb);
d6c9aab8
JB		 3736
3737 return 0;
3738
3739err:
3740 nl_destroy_handles(&global->nl_event);
3741 nl_destroy_handles(&global->nl);
3742 nl_cb_put(global->nl_cb);
671a5039 3743 global->nl_cb = NULL;
d6c9aab8
JB		 3744 return -1;
3745}
3746
3747
3748static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv)
3749{
1afc986d
JB		 3750 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
3751 if (!drv->nl_cb) {
3752 wpa_printf(MSG_ERROR, "nl80211: Failed to alloc cb struct");
d6c9aab8 3753 return -1;
1afc986d
JB		 3754 }
3755
3756 nl_cb_set(drv->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
3757 no_seq_check, NULL);
f06aedd9
JB		 3758 nl_cb_set(drv->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
3759 process_drv_event, drv);
1afc986d 3760
9fff9fdc 3761 return 0;
9fff9fdc
JM		 3762}
3763
3764
8401a6b0
JM		 3765static void wpa_driver_nl80211_rfkill_blocked(void *ctx)
3766{
8401a6b0 3767 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked");
a63063b4
JM		 3768 /*
3769 * This may be for any interface; use ifdown event to disable
3770 * interface.
3771 */
8401a6b0
JM		 3772}
3773
3774
3775static void wpa_driver_nl80211_rfkill_unblocked(void *ctx)
3776{
3777 struct wpa_driver_nl80211_data *drv = ctx;
3778 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked");
834ee56f 3779 if (i802_set_iface_flags(drv->first_bss, 1)) {
8401a6b0
JM		 3780 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP "
3781 "after rfkill unblock");
3782 return;
3783 }
a63063b4 3784 /* rtnetlink ifup handler will report interface as enabled */
8401a6b0
JM		 3785}
3786
3787
32ab4855
JB		 3788static void wpa_driver_nl80211_handle_eapol_tx_status(int sock,
3789 void *eloop_ctx,
3790 void *handle)
3791{
3792 struct wpa_driver_nl80211_data *drv = eloop_ctx;
3793 u8 data[2048];
3794 struct msghdr msg;
3795 struct iovec entry;
cad0f50e 3796 u8 control[512];
32ab4855
JB		 3797 struct cmsghdr *cmsg;
3798 int res, found_ee = 0, found_wifi = 0, acked = 0;
3799 union wpa_event_data event;
3800
3801 memset(&msg, 0, sizeof(msg));
3802 msg.msg_iov = &entry;
3803 msg.msg_iovlen = 1;
3804 entry.iov_base = data;
3805 entry.iov_len = sizeof(data);
3806 msg.msg_control = &control;
3807 msg.msg_controllen = sizeof(control);
3808
3809 res = recvmsg(sock, &msg, MSG_ERRQUEUE);
3810 /* if error or not fitting 802.3 header, return */
3811 if (res < 14)
3812 return;
3813
3814 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg))
3815 {
3816 if (cmsg->cmsg_level == SOL_SOCKET &&
3817 cmsg->cmsg_type == SCM_WIFI_STATUS) {
3818 int *ack;
3819
3820 found_wifi = 1;
3821 ack = (void *)CMSG_DATA(cmsg);
3822 acked = *ack;
3823 }
3824
3825 if (cmsg->cmsg_level == SOL_PACKET &&
3826 cmsg->cmsg_type == PACKET_TX_TIMESTAMP) {
3827 struct sock_extended_err *err =
3828 (struct sock_extended_err *)CMSG_DATA(cmsg);
3829
3830 if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS)
3831 found_ee = 1;
3832 }
3833 }
3834
3835 if (!found_ee || !found_wifi)
3836 return;
3837
3838 memset(&event, 0, sizeof(event));
3839 event.eapol_tx_status.dst = data;
3840 event.eapol_tx_status.data = data + 14;
3841 event.eapol_tx_status.data_len = res - 14;
3842 event.eapol_tx_status.ack = acked;
3843 wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event);
3844}
3845
3846
cc7a48d1
JB		 3847static int nl80211_init_bss(struct i802_bss *bss)
3848{
3849 bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
3850 if (!bss->nl_cb)
3851 return -1;
3852
3853 nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
3854 no_seq_check, NULL);
3855 nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
3856 process_bss_event, bss);
3857
3858 return 0;
3859}
3860
3861
3862static void nl80211_destroy_bss(struct i802_bss *bss)
3863{
3864 nl_cb_put(bss->nl_cb);
3865 bss->nl_cb = NULL;
3866}
3867
3868
0d547d5f
JM		 3869static void * wpa_driver_nl80211_drv_init(void *ctx, const char *ifname,
3870 void *global_priv, int hostapd,
3871 const u8 *set_addr)
9fff9fdc 3872{
9fff9fdc 3873 struct wpa_driver_nl80211_data *drv;
8401a6b0 3874 struct rfkill_config *rcfg;
a2e40bb6 3875 struct i802_bss *bss;
9fff9fdc 3876
a5c696ad
JM		 3877 if (global_priv == NULL)
3878 return NULL;
9fff9fdc
JM		 3879 drv = os_zalloc(sizeof(*drv));
3880 if (drv == NULL)
3881 return NULL;
f2ed8023 3882 drv->global = global_priv;
9fff9fdc 3883 drv->ctx = ctx;
0d547d5f
JM		 3884 drv->hostapd = !!hostapd;
3885 drv->eapol_sock = -1;
3886 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
3887 drv->if_indices = drv->default_if_indices;
834ee56f
KP		 3888
3889 drv->first_bss = os_zalloc(sizeof(*drv->first_bss));
3890 if (!drv->first_bss) {
3891 os_free(drv);
3892 return NULL;
3893 }
3894 bss = drv->first_bss;
a2e40bb6 3895 bss->drv = drv;
a5e1eb20
SE		 3896 bss->ctx = ctx;
3897
a2e40bb6 3898 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname));
9fff9fdc
JM		 3899 drv->monitor_ifidx = -1;
3900 drv->monitor_sock = -1;
d12dab4c 3901 drv->eapol_tx_sock = -1;
b1f625e0 3902 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
9fff9fdc 3903
ba2d0d7d 3904 if (wpa_driver_nl80211_init_nl(drv)) {
bbaf0837
JM		 3905 os_free(drv);
3906 return NULL;
3907 }
9fff9fdc 3908
cc7a48d1
JB		 3909 if (nl80211_init_bss(bss))
3910 goto failed;
3911
8401a6b0
JM		 3912 rcfg = os_zalloc(sizeof(*rcfg));
3913 if (rcfg == NULL)
3914 goto failed;
3915 rcfg->ctx = drv;
3916 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname));
3917 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked;
3918 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked;
3919 drv->rfkill = rfkill_init(rcfg);
52169389 3920 if (drv->rfkill == NULL) {
8401a6b0 3921 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available");
52169389
JM		 3922 os_free(rcfg);
3923 }
8401a6b0 3924
146fa9b3
JM		 3925 if (linux_iface_up(drv->global->ioctl_sock, ifname) > 0)
3926 drv->start_iface_up = 1;
3927
49b4b205 3928 if (wpa_driver_nl80211_finish_drv_init(drv, set_addr, 1))
bbaf0837 3929 goto failed;
7524cfb1 3930
d12dab4c 3931 drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0);
32ab4855
JB		 3932 if (drv->eapol_tx_sock < 0)
3933 goto failed;
3934
3935 if (drv->data_tx_status) {
3936 int enabled = 1;
3937
3938 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS,
3939 &enabled, sizeof(enabled)) < 0) {
3940 wpa_printf(MSG_DEBUG,
3941 "nl80211: wifi status sockopt failed\n");
3942 drv->data_tx_status = 0;
a11241fa
JB		 3943 if (!drv->use_monitor)
3944 drv->capa.flags &=
3945 ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
32ab4855
JB		 3946 } else {
3947 eloop_register_read_sock(drv->eapol_tx_sock,
3948 wpa_driver_nl80211_handle_eapol_tx_status,
3949 drv, NULL);
3950 }
3951 }
f10bfc9a 3952
dac12351 3953 if (drv->global) {
c4bb8817 3954 dl_list_add(&drv->global->interfaces, &drv->list);
dac12351
BG		 3955 drv->in_interface_list = 1;
3956 }
c4bb8817 3957
a2e40bb6 3958 return bss;
7524cfb1 3959
bbaf0837 3960failed:
dac12351 3961 wpa_driver_nl80211_deinit(bss);
7524cfb1
JM		 3962 return NULL;
3963}
3964
3965
0d547d5f
JM		 3966/**
3967 * wpa_driver_nl80211_init - Initialize nl80211 driver interface
3968 * @ctx: context to be used when calling wpa_supplicant functions,
3969 * e.g., wpa_supplicant_event()
3970 * @ifname: interface name, e.g., wlan0
3971 * @global_priv: private driver global data from global_init()
3972 * Returns: Pointer to private data, %NULL on failure
3973 */
3974static void * wpa_driver_nl80211_init(void *ctx, const char *ifname,
3975 void *global_priv)
3976{
3977 return wpa_driver_nl80211_drv_init(ctx, ifname, global_priv, 0, NULL);
3978}
3979
3980
a11241fa 3981static int nl80211_register_frame(struct i802_bss *bss,
5582a5d1 3982 struct nl_handle *nl_handle,
bd94971e 3983 u16 type, const u8 *match, size_t match_len)
58f6fbe0 3984{
a11241fa 3985 struct wpa_driver_nl80211_data *drv = bss->drv;
58f6fbe0
JM		 3986 struct nl_msg *msg;
3987 int ret = -1;
3988
3989 msg = nlmsg_alloc();
3990 if (!msg)
3991 return -1;
3992
36488c05
JM		 3993 wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x nl_handle=%p",
3994 type, nl_handle);
3995 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match",
3996 match, match_len);
3997
9fb04070 3998 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION);
58f6fbe0 3999
f632e483 4000 if (nl80211_set_iface_id(msg, bss) < 0)
d3aaef80
DS		 4001 goto nla_put_failure;
4002
bd94971e 4003 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type);
58f6fbe0
JM		 4004 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match);
4005
d6c9aab8 4006 ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL);
58f6fbe0
JM		 4007 msg = NULL;
4008 if (ret) {
5582a5d1
JB		 4009 wpa_printf(MSG_DEBUG, "nl80211: Register frame command "
4010 "failed (type=%u): ret=%d (%s)",
4011 type, ret, strerror(-ret));
4012 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match",
58f6fbe0
JM		 4013 match, match_len);
4014 goto nla_put_failure;
4015 }
4016 ret = 0;
4017nla_put_failure:
4018 nlmsg_free(msg);
4019 return ret;
4020}
4021
4022
a11241fa
JB		 4023static int nl80211_alloc_mgmt_handle(struct i802_bss *bss)
4024{
4025 struct wpa_driver_nl80211_data *drv = bss->drv;
4026
481234cf 4027 if (bss->nl_mgmt) {
a11241fa 4028 wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting "
36488c05 4029 "already on! (nl_mgmt=%p)", bss->nl_mgmt);
a11241fa
JB		 4030 return -1;
4031 }
4032
481234cf
JM		 4033 bss->nl_mgmt = nl_create_handle(drv->nl_cb, "mgmt");
4034 if (bss->nl_mgmt == NULL)
a11241fa
JB		 4035 return -1;
4036
a11241fa
JB		 4037 return 0;
4038}
4039
4040
5f65e9f7
JB		 4041static void nl80211_mgmt_handle_register_eloop(struct i802_bss *bss)
4042{
4043 nl80211_register_eloop_read(&bss->nl_mgmt,
4044 wpa_driver_nl80211_event_receive,
4045 bss->nl_cb);
4046}
4047
4048
a11241fa 4049static int nl80211_register_action_frame(struct i802_bss *bss,
bd94971e
JB		 4050 const u8 *match, size_t match_len)
4051{
4052 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4);
481234cf 4053 return nl80211_register_frame(bss, bss->nl_mgmt,
5582a5d1 4054 type, match, match_len);
bd94971e
JB		 4055}
4056
4057
a11241fa 4058static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss)
58f6fbe0 4059{
a11241fa
JB		 4060 struct wpa_driver_nl80211_data *drv = bss->drv;
4061
4062 if (nl80211_alloc_mgmt_handle(bss))
4063 return -1;
36488c05
JM		 4064 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP "
4065 "handle %p", bss->nl_mgmt);
a11241fa 4066
e8d1168b
JB		 4067 if (drv->nlmode == NL80211_IFTYPE_ADHOC) {
4068 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_AUTH << 4);
4069
4070 /* register for any AUTH message */
4071 nl80211_register_frame(bss, bss->nl_mgmt, type, NULL, 0);
4072 }
4073
56f5af48
JM		 4074#ifdef CONFIG_INTERWORKING
4075 /* QoS Map Configure */
4076 if (nl80211_register_action_frame(bss, (u8 *) "\x01\x04", 2) < 0)
4077 return -1;
4078#endif /* CONFIG_INTERWORKING */
4fe9fa0d 4079#if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING)
046b26a2 4080 /* GAS Initial Request */
a11241fa 4081 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0)
046b26a2
JM		 4082 return -1;
4083 /* GAS Initial Response */
a11241fa 4084 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0)
046b26a2 4085 return -1;
18708aad 4086 /* GAS Comeback Request */
a11241fa 4087 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0)
18708aad
JM		 4088 return -1;
4089 /* GAS Comeback Response */
a11241fa 4090 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0)
18708aad 4091 return -1;
4fe9fa0d
JM		 4092#endif /* CONFIG_P2P || CONFIG_INTERWORKING */
4093#ifdef CONFIG_P2P
046b26a2 4094 /* P2P Public Action */
a11241fa 4095 if (nl80211_register_action_frame(bss,
046b26a2
JM		 4096 (u8 *) "\x04\x09\x50\x6f\x9a\x09",
4097 6) < 0)
4098 return -1;
4099 /* P2P Action */
a11241fa 4100 if (nl80211_register_action_frame(bss,
046b26a2
JM		 4101 (u8 *) "\x7f\x50\x6f\x9a\x09",
4102 5) < 0)
4103 return -1;
4104#endif /* CONFIG_P2P */
7d878ca7
JM		 4105#ifdef CONFIG_IEEE80211W
4106 /* SA Query Response */
a11241fa 4107 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0)
7d878ca7
JM		 4108 return -1;
4109#endif /* CONFIG_IEEE80211W */
35287637
AN		 4110#ifdef CONFIG_TDLS
4111 if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) {
4112 /* TDLS Discovery Response */
aa543c0c 4113 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) <
35287637
AN		 4114 0)
4115 return -1;
4116 }
4117#endif /* CONFIG_TDLS */
046b26a2 4118
7b90c16a 4119 /* FT Action frames */
a11241fa 4120 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0)
7b90c16a
JM		 4121 return -1;
4122 else
4123 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT |
4124 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK;
4125
71269b37 4126 /* WNM - BSS Transition Management Request */
a11241fa
JB		 4127 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0)
4128 return -1;
bd896433
JM		 4129 /* WNM-Sleep Mode Response */
4130 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x11", 2) < 0)
4131 return -1;
a11241fa 4132
5f65e9f7
JB		 4133 nl80211_mgmt_handle_register_eloop(bss);
4134
a11241fa
JB		 4135 return 0;
4136}
4137
4138
02bb32c3
JB		 4139static int nl80211_register_spurious_class3(struct i802_bss *bss)
4140{
4141 struct wpa_driver_nl80211_data *drv = bss->drv;
4142 struct nl_msg *msg;
4143 int ret = -1;
4144
4145 msg = nlmsg_alloc();
4146 if (!msg)
4147 return -1;
4148
4149 nl80211_cmd(drv, msg, 0, NL80211_CMD_UNEXPECTED_FRAME);
4150
4151 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
4152
481234cf 4153 ret = send_and_recv(drv->global, bss->nl_mgmt, msg, NULL, NULL);
02bb32c3
JB		 4154 msg = NULL;
4155 if (ret) {
4156 wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 "
4157 "failed: ret=%d (%s)",
4158 ret, strerror(-ret));
4159 goto nla_put_failure;
4160 }
4161 ret = 0;
4162nla_put_failure:
4163 nlmsg_free(msg);
4164 return ret;
4165}
4166
4167
a11241fa
JB		 4168static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss)
4169{
4170 static const int stypes[] = {
4171 WLAN_FC_STYPE_AUTH,
4172 WLAN_FC_STYPE_ASSOC_REQ,
4173 WLAN_FC_STYPE_REASSOC_REQ,
4174 WLAN_FC_STYPE_DISASSOC,
4175 WLAN_FC_STYPE_DEAUTH,
4176 WLAN_FC_STYPE_ACTION,
4177 WLAN_FC_STYPE_PROBE_REQ,
4178/* Beacon doesn't work as mac80211 doesn't currently allow
4179 * it, but it wouldn't really be the right thing anyway as
4180 * it isn't per interface ... maybe just dump the scan
4181 * results periodically for OLBC?
4182 */
4183// WLAN_FC_STYPE_BEACON,
4184 };
4185 unsigned int i;
4186
4187 if (nl80211_alloc_mgmt_handle(bss))
71269b37 4188 return -1;
36488c05
JM		 4189 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP "
4190 "handle %p", bss->nl_mgmt);
71269b37 4191
e7ecab4a 4192 for (i = 0; i < ARRAY_SIZE(stypes); i++) {
481234cf 4193 if (nl80211_register_frame(bss, bss->nl_mgmt,
a11241fa
JB		 4194 (WLAN_FC_TYPE_MGMT << 2) |
4195 (stypes[i] << 4),
4196 NULL, 0) < 0) {
4197 goto out_err;
4198 }
4199 }
4200
02bb32c3
JB		 4201 if (nl80211_register_spurious_class3(bss))
4202 goto out_err;
4203
e32ad281
JB		 4204 if (nl80211_get_wiphy_data_ap(bss) == NULL)
4205 goto out_err;
4206
5f65e9f7 4207 nl80211_mgmt_handle_register_eloop(bss);
58f6fbe0 4208 return 0;
a11241fa
JB		 4209
4210out_err:
a11241fa
JB		 4211 nl_destroy_handles(&bss->nl_mgmt);
4212 return -1;
4213}
4214
4215
a6cc0602
JM		 4216static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss)
4217{
4218 if (nl80211_alloc_mgmt_handle(bss))
4219 return -1;
4220 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP "
4221 "handle %p (device SME)", bss->nl_mgmt);
4222
4223 if (nl80211_register_frame(bss, bss->nl_mgmt,
4224 (WLAN_FC_TYPE_MGMT << 2) |
4225 (WLAN_FC_STYPE_ACTION << 4),
4226 NULL, 0) < 0)
4227 goto out_err;
4228
5f65e9f7 4229 nl80211_mgmt_handle_register_eloop(bss);
a6cc0602
JM		 4230 return 0;
4231
4232out_err:
a6cc0602
JM		 4233 nl_destroy_handles(&bss->nl_mgmt);
4234 return -1;
4235}
4236
4237
36488c05 4238static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason)
a11241fa 4239{
481234cf 4240 if (bss->nl_mgmt == NULL)
a11241fa 4241 return;
36488c05
JM		 4242 wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p "
4243 "(%s)", bss->nl_mgmt, reason);
5f65e9f7 4244 nl80211_destroy_eloop_handle(&bss->nl_mgmt);
e32ad281
JB		 4245
4246 nl80211_put_wiphy_data_ap(bss);
58f6fbe0
JM		 4247}
4248
4249
8401a6b0
JM		 4250static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx)
4251{
4252 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL);
4253}
4254
4255
eb4582f2
AS		 4256static void nl80211_del_p2pdev(struct i802_bss *bss)
4257{
4258 struct wpa_driver_nl80211_data *drv = bss->drv;
4259 struct nl_msg *msg;
4260 int ret;
4261
4262 msg = nlmsg_alloc();
4263 if (!msg)
4264 return;
4265
4266 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE);
4267 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id);
4268
4269 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4270 msg = NULL;
4271
4272 wpa_printf(MSG_DEBUG, "nl80211: Delete P2P Device %s (0x%llx): %s",
4273 bss->ifname, (long long unsigned int) bss->wdev_id,
6cb4f11d 4274 strerror(-ret));
eb4582f2
AS		 4275
4276nla_put_failure:
4277 nlmsg_free(msg);
4278}
4279
4280
eb4582f2 4281static int nl80211_set_p2pdev(struct i802_bss *bss, int start)
f632e483
AS		 4282{
4283 struct wpa_driver_nl80211_data *drv = bss->drv;
4284 struct nl_msg *msg;
4285 int ret = -1;
4286
f632e483
AS		 4287 msg = nlmsg_alloc();
4288 if (!msg)
4289 return -1;
4290
eb4582f2
AS		 4291 if (start)
4292 nl80211_cmd(drv, msg, 0, NL80211_CMD_START_P2P_DEVICE);
4293 else
4294 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_P2P_DEVICE);
4295
f632e483
AS		 4296 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, bss->wdev_id);
4297
4298 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4299 msg = NULL;
4300
eb4582f2
AS		 4301 wpa_printf(MSG_DEBUG, "nl80211: %s P2P Device %s (0x%llx): %s",
4302 start ? "Start" : "Stop",
4303 bss->ifname, (long long unsigned int) bss->wdev_id,
6cb4f11d 4304 strerror(-ret));
eb4582f2 4305
f632e483
AS		 4306nla_put_failure:
4307 nlmsg_free(msg);
4308 return ret;
4309}
f632e483
AS		 4310
4311
91724d6f
AS		 4312static int i802_set_iface_flags(struct i802_bss *bss, int up)
4313{
4314 enum nl80211_iftype nlmode;
4315
4316 nlmode = nl80211_get_ifmode(bss);
4317 if (nlmode != NL80211_IFTYPE_P2P_DEVICE) {
4318 return linux_set_iface_flags(bss->drv->global->ioctl_sock,
4319 bss->ifname, up);
4320 }
4321
4322 /* P2P Device has start/stop which is equivalent */
4323 return nl80211_set_p2pdev(bss, up);
4324}
4325
4326
362f781e 4327static int
0d547d5f 4328wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv,
49b4b205 4329 const u8 *set_addr, int first)
7524cfb1 4330{
834ee56f 4331 struct i802_bss *bss = drv->first_bss;
8401a6b0 4332 int send_rfkill_event = 0;
0d547d5f 4333 enum nl80211_iftype nlmode;
a2e40bb6
FF		 4334
4335 drv->ifindex = if_nametoindex(bss->ifname);
f632e483
AS		 4336 bss->ifindex = drv->ifindex;
4337 bss->wdev_id = drv->global->if_add_wdevid;
4338 bss->wdev_id_set = drv->global->if_add_wdevid_set;
4339
60b13c20
IP		 4340 bss->if_dynamic = drv->ifindex == drv->global->if_add_ifindex;
4341 bss->if_dynamic = bss->if_dynamic || drv->global->if_add_wdevid_set;
f632e483
AS		 4342 drv->global->if_add_wdevid_set = 0;
4343
4344 if (wpa_driver_nl80211_capa(drv))
4345 return -1;
a87c9d96 4346
5fbcb45d
AS		 4347 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s",
4348 bss->ifname, drv->phyname);
4349
0d547d5f
JM		 4350 if (set_addr &&
4351 (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0) ||
4352 linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
4353 set_addr)))
4354 return -1;
4355
49b4b205
JM		 4356 if (first && nl80211_get_ifmode(bss) == NL80211_IFTYPE_AP)
4357 drv->start_mode_ap = 1;
4358
0d547d5f
JM		 4359 if (drv->hostapd)
4360 nlmode = NL80211_IFTYPE_AP;
4361 else if (bss->if_dynamic)
8e12685c 4362 nlmode = nl80211_get_ifmode(bss);
0d547d5f
JM		 4363 else
4364 nlmode = NL80211_IFTYPE_STATION;
f632e483 4365
8e12685c 4366 if (wpa_driver_nl80211_set_mode(bss, nlmode) < 0) {
0d547d5f 4367 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver mode");
8e12685c 4368 return -1;
a87c9d96
JM		 4369 }
4370
f632e483 4371 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) {
eb4582f2 4372 int ret = nl80211_set_p2pdev(bss, 1);
f632e483
AS		 4373 if (ret < 0)
4374 wpa_printf(MSG_ERROR, "nl80211: Could not start P2P device");
597b94f5 4375 nl80211_get_macaddr(bss);
f632e483
AS		 4376 return ret;
4377 }
4378
c81eff1a 4379 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) {
8401a6b0
JM		 4380 if (rfkill_is_blocked(drv->rfkill)) {
4381 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable "
4382 "interface '%s' due to rfkill",
4383 bss->ifname);
a63063b4 4384 drv->if_disabled = 1;
8401a6b0
JM		 4385 send_rfkill_event = 1;
4386 } else {
4387 wpa_printf(MSG_ERROR, "nl80211: Could not set "
4388 "interface '%s' UP", bss->ifname);
4389 return -1;
4390 }
362f781e 4391 }
3f5285e8 4392
0d547d5f
JM		 4393 if (!drv->hostapd)
4394 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex,
4395 1, IF_OPER_DORMANT);
362f781e 4396
c81eff1a 4397 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
341eebee 4398 bss->addr))
2136f480 4399 return -1;
f2ed8023 4400
8401a6b0
JM		 4401 if (send_rfkill_event) {
4402 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill,
4403 drv, drv->ctx);
4404 }
4405
362f781e 4406 return 0;
3f5285e8
JM		 4407}
4408
4409
8a27af5c
JM		 4410static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv)
4411{
4412 struct nl_msg *msg;
4413
4414 msg = nlmsg_alloc();
4415 if (!msg)
4416 return -ENOMEM;
4417
08e55ebb
JM		 4418 wpa_printf(MSG_DEBUG, "nl80211: Remove beacon (ifindex=%d)",
4419 drv->ifindex);
9fb04070 4420 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON);
8a27af5c
JM		 4421 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4422
4423 return send_and_recv_msgs(drv, msg, NULL, NULL);
4424 nla_put_failure:
5883168a 4425 nlmsg_free(msg);
8a27af5c
JM		 4426 return -ENOBUFS;
4427}
8a27af5c
JM		 4428
4429
3f5285e8 4430/**
7e5ba1b9 4431 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface
9ebce9c5 4432 * @bss: Pointer to private nl80211 data from wpa_driver_nl80211_init()
3f5285e8
JM		 4433 *
4434 * Shut down driver interface and processing of driver events. Free
4435 * private data buffer if one was allocated in wpa_driver_nl80211_init().
4436 */
9ebce9c5 4437static void wpa_driver_nl80211_deinit(struct i802_bss *bss)
3f5285e8 4438{
a2e40bb6 4439 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8 4440
873d0fcf 4441 bss->in_deinit = 1;
32ab4855
JB		 4442 if (drv->data_tx_status)
4443 eloop_unregister_read_sock(drv->eapol_tx_sock);
d12dab4c
JB		 4444 if (drv->eapol_tx_sock >= 0)
4445 close(drv->eapol_tx_sock);
f10bfc9a 4446
481234cf 4447 if (bss->nl_preq)
5582a5d1 4448 wpa_driver_nl80211_probe_req_report(bss, 0);
e17a2477 4449 if (bss->added_if_into_bridge) {
c81eff1a
BG		 4450 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname,
4451 bss->ifname) < 0)
94627f6c
JM		 4452 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
4453 "interface %s from bridge %s: %s",
e17a2477 4454 bss->ifname, bss->brname, strerror(errno));
94627f6c 4455 }
e17a2477 4456 if (bss->added_bridge) {
c81eff1a 4457 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0)
94627f6c
JM		 4458 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
4459 "bridge %s: %s",
e17a2477 4460 bss->brname, strerror(errno));
94627f6c
JM		 4461 }
4462
460456f8 4463 nl80211_remove_monitor_interface(drv);
8a27af5c 4464
b1f625e0 4465 if (is_ap_interface(drv->nlmode))
8a27af5c 4466 wpa_driver_nl80211_del_beacon(drv);
0915d02c 4467
bbaf0837
JM		 4468 if (drv->eapol_sock >= 0) {
4469 eloop_unregister_read_sock(drv->eapol_sock);
4470 close(drv->eapol_sock);
4471 }
4472
4473 if (drv->if_indices != drv->default_if_indices)
4474 os_free(drv->if_indices);
3f5285e8 4475
b3af99d2 4476 if (drv->disabled_11b_rates)
4e5cb1a3
JM		 4477 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
4478
36d84860
BG		 4479 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0,
4480 IF_OPER_UP);
8401a6b0 4481 rfkill_deinit(drv->rfkill);
3f5285e8 4482
bbaf0837
JM		 4483 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
4484
146fa9b3
JM		 4485 if (!drv->start_iface_up)
4486 (void) i802_set_iface_flags(bss, 0);
8e12685c 4487 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE) {
49b4b205
JM		 4488 if (!drv->hostapd || !drv->start_mode_ap)
4489 wpa_driver_nl80211_set_mode(bss,
4490 NL80211_IFTYPE_STATION);
b378c41f 4491 nl80211_mgmt_unsubscribe(bss, "deinit");
8e12685c
AS		 4492 } else {
4493 nl80211_mgmt_unsubscribe(bss, "deinit");
eb4582f2 4494 nl80211_del_p2pdev(bss);
8e12685c 4495 }
1afc986d 4496 nl_cb_put(drv->nl_cb);
3f5285e8 4497
834ee56f 4498 nl80211_destroy_bss(drv->first_bss);
cc7a48d1 4499
3812464c
JM		 4500 os_free(drv->filter_ssids);
4501
536fd62d
JM		 4502 os_free(drv->auth_ie);
4503
dac12351 4504 if (drv->in_interface_list)
f2ed8023
JM		 4505 dl_list_del(&drv->list);
4506
8cd6b7bc
JB		 4507 os_free(drv->extended_capa);
4508 os_free(drv->extended_capa_mask);
834ee56f 4509 os_free(drv->first_bss);
3f5285e8
JM		 4510 os_free(drv);
4511}
4512
4513
4514/**
4515 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion
ad1e68e6 4516 * @eloop_ctx: Driver private data
3f5285e8
JM		 4517 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init()
4518 *
4519 * This function can be used as registered timeout when starting a scan to
4520 * generate a scan completed event if the driver does not report this.
4521 */
4522static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx)
4523{
ad1e68e6 4524 struct wpa_driver_nl80211_data *drv = eloop_ctx;
b1f625e0 4525 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) {
834ee56f 4526 wpa_driver_nl80211_set_mode(drv->first_bss,
b1f625e0
EP		 4527 drv->ap_scan_as_station);
4528 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
ad1e68e6 4529 }
3f5285e8
JM		 4530 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results");
4531 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL);
4532}
4533
4534
95ac3bf4
JM		 4535static struct nl_msg *
4536nl80211_scan_common(struct wpa_driver_nl80211_data *drv, u8 cmd,
d3aaef80 4537 struct wpa_driver_scan_params *params, u64 *wdev_id)
3f5285e8 4538{
95ac3bf4 4539 struct nl_msg *msg;
6a1063e0 4540 size_t i;
3f5285e8 4541
0e75527f 4542 msg = nlmsg_alloc();
f0494d0f 4543 if (!msg)
95ac3bf4 4544 return NULL;
3812464c 4545
95ac3bf4 4546 nl80211_cmd(drv, msg, 0, cmd);
0e75527f 4547
d3aaef80
DS		 4548 if (!wdev_id)
4549 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4550 else
4551 NLA_PUT_U64(msg, NL80211_ATTR_WDEV, *wdev_id);
3f5285e8 4552
f0494d0f 4553 if (params->num_ssids) {
8970bae8
JB		 4554 struct nlattr *ssids;
4555
4556 ssids = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
f0494d0f 4557 if (ssids == NULL)
95ac3bf4 4558 goto fail;
f0494d0f
JM		 4559 for (i = 0; i < params->num_ssids; i++) {
4560 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID",
4561 params->ssids[i].ssid,
4562 params->ssids[i].ssid_len);
8970bae8
JB		 4563 if (nla_put(msg, i + 1, params->ssids[i].ssid_len,
4564 params->ssids[i].ssid) < 0)
95ac3bf4 4565 goto fail;
f0494d0f 4566 }
8970bae8 4567 nla_nest_end(msg, ssids);
3f5285e8
JM		 4568 }
4569
d173df52 4570 if (params->extra_ies) {
3b1c7bfd
JM		 4571 wpa_hexdump(MSG_MSGDUMP, "nl80211: Scan extra IEs",
4572 params->extra_ies, params->extra_ies_len);
95ac3bf4
JM		 4573 if (nla_put(msg, NL80211_ATTR_IE, params->extra_ies_len,
4574 params->extra_ies) < 0)
4575 goto fail;
d173df52
JM		 4576 }
4577
d3a98225 4578 if (params->freqs) {
8970bae8
JB		 4579 struct nlattr *freqs;
4580 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
f0494d0f 4581 if (freqs == NULL)
95ac3bf4 4582 goto fail;
9fad706c
JM		 4583 for (i = 0; params->freqs[i]; i++) {
4584 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u "
4585 "MHz", params->freqs[i]);
8970bae8 4586 if (nla_put_u32(msg, i + 1, params->freqs[i]) < 0)
95ac3bf4 4587 goto fail;
9fad706c 4588 }
8970bae8 4589 nla_nest_end(msg, freqs);
d3a98225
JM		 4590 }
4591
95ac3bf4
JM		 4592 os_free(drv->filter_ssids);
4593 drv->filter_ssids = params->filter_ssids;
4594 params->filter_ssids = NULL;
4595 drv->num_filter_ssids = params->num_filter_ssids;
4596
4597 return msg;
4598
4599fail:
d3aaef80 4600nla_put_failure:
95ac3bf4
JM		 4601 nlmsg_free(msg);
4602 return NULL;
4603}
4604
4605
4606/**
4607 * wpa_driver_nl80211_scan - Request the driver to initiate scan
9ebce9c5 4608 * @bss: Pointer to private driver data from wpa_driver_nl80211_init()
95ac3bf4
JM		 4609 * @params: Scan parameters
4610 * Returns: 0 on success, -1 on failure
4611 */
9ebce9c5 4612static int wpa_driver_nl80211_scan(struct i802_bss *bss,
95ac3bf4
JM		 4613 struct wpa_driver_scan_params *params)
4614{
95ac3bf4
JM		 4615 struct wpa_driver_nl80211_data *drv = bss->drv;
4616 int ret = -1, timeout;
8970bae8 4617 struct nl_msg *msg = NULL;
95ac3bf4 4618
565110cd 4619 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: scan request");
95ac3bf4
JM		 4620 drv->scan_for_auth = 0;
4621
d3aaef80
DS		 4622 msg = nl80211_scan_common(drv, NL80211_CMD_TRIGGER_SCAN, params,
4623 bss->wdev_id_set ? &bss->wdev_id : NULL);
95ac3bf4
JM		 4624 if (!msg)
4625 return -1;
4626
47185fc7 4627 if (params->p2p_probe) {
8970bae8
JB		 4628 struct nlattr *rates;
4629
8a6a1e1b
JM		 4630 wpa_printf(MSG_DEBUG, "nl80211: P2P probe - mask SuppRates");
4631
8970bae8 4632 rates = nla_nest_start(msg, NL80211_ATTR_SCAN_SUPP_RATES);
f0494d0f
JM		 4633 if (rates == NULL)
4634 goto nla_put_failure;
4635
47185fc7
RM		 4636 /*
4637 * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates
4638 * by masking out everything else apart from the OFDM rates 6,
4639 * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz
4640 * rates are left enabled.
4641 */
8970bae8 4642 NLA_PUT(msg, NL80211_BAND_2GHZ, 8,
47185fc7 4643 "\x0c\x12\x18\x24\x30\x48\x60\x6c");
8970bae8 4644 nla_nest_end(msg, rates);
970fa12e
RM		 4645
4646 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE);
47185fc7
RM		 4647 }
4648
0e75527f
JM		 4649 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4650 msg = NULL;
4651 if (ret) {
4652 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d "
4653 "(%s)", ret, strerror(-ret));
04eff7d5 4654 if (drv->hostapd && is_ap_interface(drv->nlmode)) {
ad1e68e6
JM		 4655 /*
4656 * mac80211 does not allow scan requests in AP mode, so
4657 * try to do this in station mode.
4658 */
b1f625e0
EP		 4659 if (wpa_driver_nl80211_set_mode(
4660 bss, NL80211_IFTYPE_STATION))
ad1e68e6
JM		 4661 goto nla_put_failure;
4662
085b29f1 4663 if (wpa_driver_nl80211_scan(bss, params)) {
b1f625e0 4664 wpa_driver_nl80211_set_mode(bss, drv->nlmode);
ad1e68e6
JM		 4665 goto nla_put_failure;
4666 }
4667
4668 /* Restore AP mode when processing scan results */
b1f625e0 4669 drv->ap_scan_as_station = drv->nlmode;
ad1e68e6
JM		 4670 ret = 0;
4671 } else
4672 goto nla_put_failure;
3f5285e8
JM		 4673 }
4674
a771c07d 4675 drv->scan_state = SCAN_REQUESTED;
3f5285e8
JM		 4676 /* Not all drivers generate "scan completed" wireless event, so try to
4677 * read results after a timeout. */
0e75527f 4678 timeout = 10;
3f5285e8
JM		 4679 if (drv->scan_complete_events) {
4680 /*
d173df52
JM		 4681 * The driver seems to deliver events to notify when scan is
4682 * complete, so use longer timeout to avoid race conditions
4683 * with scanning and following association request.
3f5285e8
JM		 4684 */
4685 timeout = 30;
4686 }
4687 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d "
4688 "seconds", ret, timeout);
4689 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
0e75527f
JM		 4690 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout,
4691 drv, drv->ctx);
3f5285e8 4692
0e75527f 4693nla_put_failure:
0e75527f 4694 nlmsg_free(msg);
3f5285e8
JM		 4695 return ret;
4696}
4697
4698
d21c63b9
LC		 4699/**
4700 * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan
4701 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
4702 * @params: Scan parameters
4703 * @interval: Interval between scan cycles in milliseconds
4704 * Returns: 0 on success, -1 on failure or if not supported
4705 */
4706static int wpa_driver_nl80211_sched_scan(void *priv,
4707 struct wpa_driver_scan_params *params,
4708 u32 interval)
4709{
4710 struct i802_bss *bss = priv;
4711 struct wpa_driver_nl80211_data *drv = bss->drv;
6afbc3d6 4712 int ret = -1;
95ac3bf4 4713 struct nl_msg *msg;
d21c63b9
LC		 4714 size_t i;
4715
565110cd
JM		 4716 wpa_dbg(drv->ctx, MSG_DEBUG, "nl80211: sched_scan request");
4717
216eede8
DS		 4718#ifdef ANDROID
4719 if (!drv->capa.sched_scan_supported)
4720 return android_pno_start(bss, params);
4721#endif /* ANDROID */
4722
d3aaef80
DS		 4723 msg = nl80211_scan_common(drv, NL80211_CMD_START_SCHED_SCAN, params,
4724 bss->wdev_id_set ? &bss->wdev_id : NULL);
6afbc3d6
JM		 4725 if (!msg)
4726 goto nla_put_failure;
d21c63b9 4727
d21c63b9
LC		 4728 NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval);
4729
bf8d6d24
TP		 4730 if ((drv->num_filter_ssids &&
4731 (int) drv->num_filter_ssids <= drv->capa.max_match_sets) ||
4732 params->filter_rssi) {
8970bae8
JB		 4733 struct nlattr *match_sets;
4734 match_sets = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
6afbc3d6
JM		 4735 if (match_sets == NULL)
4736 goto nla_put_failure;
bd525934
LC		 4737
4738 for (i = 0; i < drv->num_filter_ssids; i++) {
8970bae8 4739 struct nlattr *match_set_ssid;
bd525934
LC		 4740 wpa_hexdump_ascii(MSG_MSGDUMP,
4741 "nl80211: Sched scan filter SSID",
4742 drv->filter_ssids[i].ssid,
4743 drv->filter_ssids[i].ssid_len);
4744
8970bae8 4745 match_set_ssid = nla_nest_start(msg, i + 1);
6afbc3d6
JM		 4746 if (match_set_ssid == NULL)
4747 goto nla_put_failure;
8970bae8 4748 NLA_PUT(msg, NL80211_ATTR_SCHED_SCAN_MATCH_SSID,
bd525934
LC		 4749 drv->filter_ssids[i].ssid_len,
4750 drv->filter_ssids[i].ssid);
4751
adc96dc2 4752 nla_nest_end(msg, match_set_ssid);
bd525934
LC		 4753 }
4754
bf8d6d24 4755 if (params->filter_rssi) {
8970bae8
JB		 4756 struct nlattr *match_set_rssi;
4757 match_set_rssi = nla_nest_start(msg, 0);
6afbc3d6
JM		 4758 if (match_set_rssi == NULL)
4759 goto nla_put_failure;
8970bae8 4760 NLA_PUT_U32(msg, NL80211_SCHED_SCAN_MATCH_ATTR_RSSI,
bf8d6d24
TP		 4761 params->filter_rssi);
4762 wpa_printf(MSG_MSGDUMP,
4763 "nl80211: Sched scan RSSI filter %d dBm",
4764 params->filter_rssi);
8970bae8 4765 nla_nest_end(msg, match_set_rssi);
bf8d6d24
TP		 4766 }
4767
8970bae8 4768 nla_nest_end(msg, match_sets);
bd525934
LC		 4769 }
4770
d21c63b9
LC		 4771 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4772
4773 /* TODO: if we get an error here, we should fall back to normal scan */
4774
4775 msg = NULL;
4776 if (ret) {
4777 wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: "
4778 "ret=%d (%s)", ret, strerror(-ret));
4779 goto nla_put_failure;
4780 }
4781
4782 wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - "
4783 "scan interval %d msec", ret, interval);
4784
4785nla_put_failure:
d21c63b9 4786 nlmsg_free(msg);
d21c63b9
LC		 4787 return ret;
4788}
4789
4790
4791/**
4792 * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan
4793 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
4794 * Returns: 0 on success, -1 on failure or if not supported
4795 */
4796static int wpa_driver_nl80211_stop_sched_scan(void *priv)
4797{
4798 struct i802_bss *bss = priv;
4799 struct wpa_driver_nl80211_data *drv = bss->drv;
4800 int ret = 0;
4801 struct nl_msg *msg;
4802
216eede8
DS		 4803#ifdef ANDROID
4804 if (!drv->capa.sched_scan_supported)
4805 return android_pno_stop(bss);
4806#endif /* ANDROID */
4807
d21c63b9
LC		 4808 msg = nlmsg_alloc();
4809 if (!msg)
4810 return -1;
4811
9fb04070 4812 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN);
d21c63b9
LC		 4813
4814 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4815
4816 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4817 msg = NULL;
4818 if (ret) {
4819 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: "
4820 "ret=%d (%s)", ret, strerror(-ret));
4821 goto nla_put_failure;
4822 }
4823
4824 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret);
4825
4826nla_put_failure:
4827 nlmsg_free(msg);
4828 return ret;
4829}
4830
4831
3812464c
JM		 4832static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie)
4833{
4834 const u8 *end, *pos;
4835
4836 if (ies == NULL)
4837 return NULL;
4838
4839 pos = ies;
4840 end = ies + ies_len;
4841
4842 while (pos + 1 < end) {
4843 if (pos + 2 + pos[1] > end)
4844 break;
4845 if (pos[0] == ie)
4846 return pos;
4847 pos += 2 + pos[1];
4848 }
4849
4850 return NULL;
4851}
4852
4853
4854static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv,
4855 const u8 *ie, size_t ie_len)
4856{
4857 const u8 *ssid;
4858 size_t i;
4859
4860 if (drv->filter_ssids == NULL)
4861 return 0;
4862
4863 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID);
4864 if (ssid == NULL)
4865 return 1;
4866
4867 for (i = 0; i < drv->num_filter_ssids; i++) {
4868 if (ssid[1] == drv->filter_ssids[i].ssid_len &&
4869 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) ==
4870 0)
4871 return 0;
4872 }
4873
4874 return 1;
4875}
4876
4877
b3db1e1c 4878static int bss_info_handler(struct nl_msg *msg, void *arg)
3f5285e8 4879{
b3db1e1c
JM		 4880 struct nlattr *tb[NL80211_ATTR_MAX + 1];
4881 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
4882 struct nlattr *bss[NL80211_BSS_MAX + 1];
4883 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
4884 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC },
4885 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 },
4886 [NL80211_BSS_TSF] = { .type = NLA_U64 },
4887 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 },
4888 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 },
4889 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC },
4890 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 },
4891 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 },
e6b8efeb 4892 [NL80211_BSS_STATUS] = { .type = NLA_U32 },
b3ad11bb 4893 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 },
8c090654 4894 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC },
b3db1e1c 4895 };
3812464c
JM		 4896 struct nl80211_bss_info_arg *_arg = arg;
4897 struct wpa_scan_results *res = _arg->res;
3f5285e8
JM		 4898 struct wpa_scan_res **tmp;
4899 struct wpa_scan_res *r;
8c090654
JM		 4900 const u8 *ie, *beacon_ie;
4901 size_t ie_len, beacon_ie_len;
4902 u8 *pos;
46957a9b 4903 size_t i;
3f5285e8 4904
b3db1e1c
JM		 4905 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
4906 genlmsg_attrlen(gnlh, 0), NULL);
4907 if (!tb[NL80211_ATTR_BSS])
4908 return NL_SKIP;
4909 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS],
4910 bss_policy))
4911 return NL_SKIP;
f5a8d422
JM		 4912 if (bss[NL80211_BSS_STATUS]) {
4913 enum nl80211_bss_status status;
4914 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
4915 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
4916 bss[NL80211_BSS_FREQUENCY]) {
4917 _arg->assoc_freq =
4918 nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
4919 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz",
4920 _arg->assoc_freq);
4921 }
20f5a4c2
JM		 4922 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
4923 bss[NL80211_BSS_BSSID]) {
4924 os_memcpy(_arg->assoc_bssid,
4925 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN);
4926 wpa_printf(MSG_DEBUG, "nl80211: Associated with "
4927 MACSTR, MAC2STR(_arg->assoc_bssid));
4928 }
f5a8d422
JM		 4929 }
4930 if (!res)
4931 return NL_SKIP;
b3db1e1c
JM		 4932 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) {
4933 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
4934 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
4935 } else {
4936 ie = NULL;
4937 ie_len = 0;
4938 }
8c090654
JM		 4939 if (bss[NL80211_BSS_BEACON_IES]) {
4940 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]);
4941 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]);
4942 } else {
4943 beacon_ie = NULL;
4944 beacon_ie_len = 0;
4945 }
3f5285e8 4946
3812464c
JM		 4947 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie,
4948 ie ? ie_len : beacon_ie_len))
4949 return NL_SKIP;
4950
8c090654 4951 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len);
3f5285e8 4952 if (r == NULL)
b3db1e1c
JM		 4953 return NL_SKIP;
4954 if (bss[NL80211_BSS_BSSID])
4955 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]),
4956 ETH_ALEN);
4957 if (bss[NL80211_BSS_FREQUENCY])
4958 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
4959 if (bss[NL80211_BSS_BEACON_INTERVAL])
4960 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]);
4961 if (bss[NL80211_BSS_CAPABILITY])
4962 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]);
7c2849d2
JM		 4963 r->flags |= WPA_SCAN_NOISE_INVALID;
4964 if (bss[NL80211_BSS_SIGNAL_MBM]) {
b3db1e1c 4965 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]);
7c2849d2
JM		 4966 r->level /= 100; /* mBm to dBm */
4967 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID;
4968 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) {
4969 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]);
98ac6763 4970 r->flags |= WPA_SCAN_QUAL_INVALID;
7c2849d2
JM		 4971 } else
4972 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID;
b3db1e1c
JM		 4973 if (bss[NL80211_BSS_TSF])
4974 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]);
b3ad11bb
JM		 4975 if (bss[NL80211_BSS_SEEN_MS_AGO])
4976 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]);
b3db1e1c 4977 r->ie_len = ie_len;
8c090654
JM		 4978 pos = (u8 *) (r + 1);
4979 if (ie) {
4980 os_memcpy(pos, ie, ie_len);
4981 pos += ie_len;
4982 }
4983 r->beacon_ie_len = beacon_ie_len;
4984 if (beacon_ie)
4985 os_memcpy(pos, beacon_ie, beacon_ie_len);
3f5285e8 4986
e6b8efeb
JM		 4987 if (bss[NL80211_BSS_STATUS]) {
4988 enum nl80211_bss_status status;
4989 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
4990 switch (status) {
4991 case NL80211_BSS_STATUS_AUTHENTICATED:
4992 r->flags |= WPA_SCAN_AUTHENTICATED;
4993 break;
4994 case NL80211_BSS_STATUS_ASSOCIATED:
4995 r->flags |= WPA_SCAN_ASSOCIATED;
4996 break;
4997 default:
4998 break;
4999 }
5000 }
5001
46957a9b
JM		 5002 /*
5003 * cfg80211 maintains separate BSS table entries for APs if the same
5004 * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does
5005 * not use frequency as a separate key in the BSS table, so filter out
5006 * duplicated entries. Prefer associated BSS entry in such a case in
5007 * order to get the correct frequency into the BSS table.
5008 */
5009 for (i = 0; i < res->num; i++) {
5010 const u8 *s1, *s2;
5011 if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0)
5012 continue;
5013
5014 s1 = nl80211_get_ie((u8 *) (res->res[i] + 1),
5015 res->res[i]->ie_len, WLAN_EID_SSID);
5016 s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID);
5017 if (s1 == NULL || s2 == NULL || s1[1] != s2[1] ||
5018 os_memcmp(s1, s2, 2 + s1[1]) != 0)
5019 continue;
5020
5021 /* Same BSSID,SSID was already included in scan results */
5022 wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result "
5023 "for " MACSTR, MAC2STR(r->bssid));
5024
5025 if ((r->flags & WPA_SCAN_ASSOCIATED) &&
5026 !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) {
5027 os_free(res->res[i]);
5028 res->res[i] = r;
5029 } else
5030 os_free(r);
5031 return NL_SKIP;
5032 }
5033
067ffa26
JM		 5034 tmp = os_realloc_array(res->res, res->num + 1,
5035 sizeof(struct wpa_scan_res *));
3f5285e8
JM		 5036 if (tmp == NULL) {
5037 os_free(r);
b3db1e1c 5038 return NL_SKIP;
3f5285e8
JM		 5039 }
5040 tmp[res->num++] = r;
5041 res->res = tmp;
b3db1e1c
JM		 5042
5043 return NL_SKIP;
3f5285e8 5044}
b3db1e1c 5045
3f5285e8 5046
d72aad94
JM		 5047static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv,
5048 const u8 *addr)
5049{
5050 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
5051 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state "
582507be 5052 "mismatch (" MACSTR ")", MAC2STR(addr));
d72aad94
JM		 5053 wpa_driver_nl80211_mlme(drv, addr,
5054 NL80211_CMD_DEAUTHENTICATE,
77339912 5055 WLAN_REASON_PREV_AUTH_NOT_VALID, 1);
d72aad94
JM		 5056 }
5057}
5058
5059
e6b8efeb
JM		 5060static void wpa_driver_nl80211_check_bss_status(
5061 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res)
5062{
5063 size_t i;
5064
5065 for (i = 0; i < res->num; i++) {
5066 struct wpa_scan_res *r = res->res[i];
5067 if (r->flags & WPA_SCAN_AUTHENTICATED) {
5068 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
5069 "indicates BSS status with " MACSTR
5070 " as authenticated",
5071 MAC2STR(r->bssid));
b1f625e0 5072 if (is_sta_interface(drv->nlmode) &&
e6b8efeb
JM		 5073 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 &&
5074 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) !=
5075 0) {
5076 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID"
5077 " in local state (auth=" MACSTR
5078 " assoc=" MACSTR ")",
5079 MAC2STR(drv->auth_bssid),
5080 MAC2STR(drv->bssid));
582507be 5081 clear_state_mismatch(drv, r->bssid);
e6b8efeb
JM		 5082 }
5083 }
5084
5085 if (r->flags & WPA_SCAN_ASSOCIATED) {
5086 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
5087 "indicate BSS status with " MACSTR
5088 " as associated",
5089 MAC2STR(r->bssid));
b1f625e0 5090 if (is_sta_interface(drv->nlmode) &&
e6b8efeb
JM		 5091 !drv->associated) {
5092 wpa_printf(MSG_DEBUG, "nl80211: Local state "
5093 "(not associated) does not match "
5094 "with BSS state");
d72aad94 5095 clear_state_mismatch(drv, r->bssid);
b1f625e0 5096 } else if (is_sta_interface(drv->nlmode) &&
e6b8efeb
JM		 5097 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) !=
5098 0) {
5099 wpa_printf(MSG_DEBUG, "nl80211: Local state "
5100 "(associated with " MACSTR ") does "
5101 "not match with BSS state",
d72aad94
JM		 5102 MAC2STR(drv->bssid));
5103 clear_state_mismatch(drv, r->bssid);
5104 clear_state_mismatch(drv, drv->bssid);
e6b8efeb
JM		 5105 }
5106 }
5107 }
5108}
5109
5110
7e5ba1b9 5111static struct wpa_scan_results *
8856462d 5112nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv)
3f5285e8 5113{
b3db1e1c 5114 struct nl_msg *msg;
3f5285e8 5115 struct wpa_scan_results *res;
b3db1e1c 5116 int ret;
3812464c 5117 struct nl80211_bss_info_arg arg;
3f5285e8
JM		 5118
5119 res = os_zalloc(sizeof(*res));
b3db1e1c 5120 if (res == NULL)
8e2c104f 5121 return NULL;
b3db1e1c
JM		 5122 msg = nlmsg_alloc();
5123 if (!msg)
5124 goto nla_put_failure;
3f5285e8 5125
9fb04070 5126 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
834ee56f 5127 if (nl80211_set_iface_id(msg, drv->first_bss) < 0)
fdc554b8 5128 goto nla_put_failure;
3f5285e8 5129
3812464c
JM		 5130 arg.drv = drv;
5131 arg.res = res;
5132 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
b3db1e1c
JM		 5133 msg = NULL;
5134 if (ret == 0) {
577db0ae
GM		 5135 wpa_printf(MSG_DEBUG, "nl80211: Received scan results (%lu "
5136 "BSSes)", (unsigned long) res->num);
5137 nl80211_get_noise_for_scan_results(drv, res);
b3db1e1c 5138 return res;
3f5285e8 5139 }
b3db1e1c
JM		 5140 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
5141 "(%s)", ret, strerror(-ret));
5142nla_put_failure:
5143 nlmsg_free(msg);
5144 wpa_scan_results_free(res);
5145 return NULL;
3f5285e8
JM		 5146}
5147
5148
8856462d
JM		 5149/**
5150 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results
5151 * @priv: Pointer to private wext data from wpa_driver_nl80211_init()
5152 * Returns: Scan results on success, -1 on failure
5153 */
5154static struct wpa_scan_results *
5155wpa_driver_nl80211_get_scan_results(void *priv)
5156{
a2e40bb6
FF		 5157 struct i802_bss *bss = priv;
5158 struct wpa_driver_nl80211_data *drv = bss->drv;
8856462d
JM		 5159 struct wpa_scan_results *res;
5160
5161 res = nl80211_get_scan_results(drv);
5162 if (res)
5163 wpa_driver_nl80211_check_bss_status(drv, res);
5164 return res;
5165}
5166
5167
5168static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv)
5169{
5170 struct wpa_scan_results *res;
5171 size_t i;
5172
5173 res = nl80211_get_scan_results(drv);
5174 if (res == NULL) {
5175 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results");
5176 return;
5177 }
5178
5179 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump");
5180 for (i = 0; i < res->num; i++) {
5181 struct wpa_scan_res *r = res->res[i];
5182 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s",
5183 (int) i, (int) res->num, MAC2STR(r->bssid),
5184 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "",
5185 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : "");
5186 }
5187
5188 wpa_scan_results_free(res);
5189}
5190
5191
9ebce9c5 5192static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss,
71934751
JM		 5193 enum wpa_alg alg, const u8 *addr,
5194 int key_idx, int set_tx,
642187d6
JM		 5195 const u8 *seq, size_t seq_len,
5196 const u8 *key, size_t key_len)
3f5285e8 5197{
a2e40bb6 5198 struct wpa_driver_nl80211_data *drv = bss->drv;
e472e1b4 5199 int ifindex;
3f5285e8 5200 struct nl_msg *msg;
1ad1cdc2 5201 int ret;
dc01de8a 5202 int tdls = 0;
3f5285e8 5203
e472e1b4
AS		 5204 /* Ignore for P2P Device */
5205 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE)
5206 return 0;
5207
5208 ifindex = if_nametoindex(ifname);
8393e1a0 5209 wpa_printf(MSG_DEBUG, "%s: ifindex=%d (%s) alg=%d addr=%p key_idx=%d "
1ad1cdc2 5210 "set_tx=%d seq_len=%lu key_len=%lu",
8393e1a0 5211 __func__, ifindex, ifname, alg, addr, key_idx, set_tx,
3f5285e8 5212 (unsigned long) seq_len, (unsigned long) key_len);
8c66e185 5213#ifdef CONFIG_TDLS
dc01de8a 5214 if (key_idx == -1) {
8c66e185 5215 key_idx = 0;
dc01de8a
JM		 5216 tdls = 1;
5217 }
8c66e185 5218#endif /* CONFIG_TDLS */
3f5285e8
JM		 5219
5220 msg = nlmsg_alloc();
1ad1cdc2
JM		 5221 if (!msg)
5222 return -ENOMEM;
3f5285e8
JM		 5223
5224 if (alg == WPA_ALG_NONE) {
9fb04070 5225 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY);
3f5285e8 5226 } else {
9fb04070 5227 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY);
3f5285e8 5228 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key);
d723bab4
JM		 5229 switch (alg) {
5230 case WPA_ALG_WEP:
5231 if (key_len == 5)
5232 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
5233 WLAN_CIPHER_SUITE_WEP40);
5234 else
5235 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
5236 WLAN_CIPHER_SUITE_WEP104);
5237 break;
5238 case WPA_ALG_TKIP:
5239 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
5240 WLAN_CIPHER_SUITE_TKIP);
5241 break;
5242 case WPA_ALG_CCMP:
5243 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
5244 WLAN_CIPHER_SUITE_CCMP);
5245 break;
eb7719ff
JM		 5246 case WPA_ALG_GCMP:
5247 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
5248 WLAN_CIPHER_SUITE_GCMP);
5249 break;
30675c34
JM		 5250 case WPA_ALG_CCMP_256:
5251 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
5252 WLAN_CIPHER_SUITE_CCMP_256);
5253 break;
5254 case WPA_ALG_GCMP_256:
5255 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
5256 WLAN_CIPHER_SUITE_GCMP_256);
5257 break;
d723bab4
JM		 5258 case WPA_ALG_IGTK:
5259 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
5260 WLAN_CIPHER_SUITE_AES_CMAC);
5261 break;
30675c34
JM		 5262 case WPA_ALG_BIP_GMAC_128:
5263 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
5264 WLAN_CIPHER_SUITE_BIP_GMAC_128);
5265 break;
5266 case WPA_ALG_BIP_GMAC_256:
5267 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
5268 WLAN_CIPHER_SUITE_BIP_GMAC_256);
5269 break;
5270 case WPA_ALG_BIP_CMAC_256:
5271 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
5272 WLAN_CIPHER_SUITE_BIP_CMAC_256);
5273 break;
369c8d7b
JM		 5274 case WPA_ALG_SMS4:
5275 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
5276 WLAN_CIPHER_SUITE_SMS4);
5277 break;
5278 case WPA_ALG_KRK:
5279 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
5280 WLAN_CIPHER_SUITE_KRK);
5281 break;
d723bab4
JM		 5282 default:
5283 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
5284 "algorithm %d", __func__, alg);
3f5285e8
JM		 5285 nlmsg_free(msg);
5286 return -1;
5287 }
5288 }
5289
849ef835 5290 if (seq && seq_len)
1ad1cdc2
JM		 5291 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq);
5292
0382097e 5293 if (addr && !is_broadcast_ether_addr(addr)) {
3f5285e8
JM		 5294 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr));
5295 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
89c38e32
JM		 5296
5297 if (alg != WPA_ALG_WEP && key_idx && !set_tx) {
5298 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK");
5299 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE,
5300 NL80211_KEYTYPE_GROUP);
5301 }
60ea8187 5302 } else if (addr && is_broadcast_ether_addr(addr)) {
8970bae8
JB		 5303 struct nlattr *types;
5304
60ea8187 5305 wpa_printf(MSG_DEBUG, " broadcast key");
8970bae8
JB		 5306
5307 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES);
60ea8187
JM		 5308 if (!types)
5309 goto nla_put_failure;
8970bae8
JB		 5310 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
5311 nla_nest_end(msg, types);
3f5285e8
JM		 5312 }
5313 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1ad1cdc2 5314 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
3f5285e8 5315
1ad1cdc2 5316 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
15664ad0 5317 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE)
1ad1cdc2
JM		 5318 ret = 0;
5319 if (ret)
5320 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)",
5321 ret, strerror(-ret));
3f5285e8 5322
1ad1cdc2
JM		 5323 /*
5324 * If we failed or don't need to set the default TX key (below),
5325 * we're done here.
5326 */
dc01de8a 5327 if (ret || !set_tx || alg == WPA_ALG_NONE || tdls)
1ad1cdc2 5328 return ret;
b1f625e0 5329 if (is_ap_interface(drv->nlmode) && addr &&
0382097e 5330 !is_broadcast_ether_addr(addr))
de12717a 5331 return ret;
3f5285e8 5332
1ad1cdc2
JM		 5333 msg = nlmsg_alloc();
5334 if (!msg)
5335 return -ENOMEM;
3f5285e8 5336
9fb04070 5337 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY);
1ad1cdc2
JM		 5338 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
5339 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
5340 if (alg == WPA_ALG_IGTK)
5341 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT);
5342 else
5343 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
60ea8187 5344 if (addr && is_broadcast_ether_addr(addr)) {
8970bae8
JB		 5345 struct nlattr *types;
5346
5347 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES);
60ea8187
JM		 5348 if (!types)
5349 goto nla_put_failure;
8970bae8
JB		 5350 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
5351 nla_nest_end(msg, types);
60ea8187 5352 } else if (addr) {
8970bae8
JB		 5353 struct nlattr *types;
5354
5355 types = nla_nest_start(msg, NL80211_ATTR_KEY_DEFAULT_TYPES);
60ea8187
JM		 5356 if (!types)
5357 goto nla_put_failure;
8970bae8
JB		 5358 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_TYPE_UNICAST);
5359 nla_nest_end(msg, types);
60ea8187 5360 }
3f5285e8 5361
1ad1cdc2
JM		 5362 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5363 if (ret == -ENOENT)
5364 ret = 0;
5365 if (ret)
5366 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; "
5367 "err=%d %s)", ret, strerror(-ret));
5368 return ret;
3f5285e8
JM		 5369
5370nla_put_failure:
5883168a 5371 nlmsg_free(msg);
6241fcb1 5372 return -ENOBUFS;
3f5285e8
JM		 5373}
5374
5375
71934751 5376static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg,
0194fedb
JB		 5377 int key_idx, int defkey,
5378 const u8 *seq, size_t seq_len,
5379 const u8 *key, size_t key_len)
5380{
5381 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY);
5382 if (!key_attr)
5383 return -1;
5384
5385 if (defkey && alg == WPA_ALG_IGTK)
5386 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT);
5387 else if (defkey)
5388 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
5389
5390 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx);
5391
d723bab4
JM		 5392 switch (alg) {
5393 case WPA_ALG_WEP:
5394 if (key_len == 5)
2aa5f847
JM		 5395 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
5396 WLAN_CIPHER_SUITE_WEP40);
d723bab4 5397 else
2aa5f847
JM		 5398 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
5399 WLAN_CIPHER_SUITE_WEP104);
d723bab4
JM		 5400 break;
5401 case WPA_ALG_TKIP:
2aa5f847 5402 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP);
d723bab4
JM		 5403 break;
5404 case WPA_ALG_CCMP:
2aa5f847 5405 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP);
d723bab4 5406 break;
eb7719ff
JM		 5407 case WPA_ALG_GCMP:
5408 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_GCMP);
5409 break;
30675c34
JM		 5410 case WPA_ALG_CCMP_256:
5411 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
5412 WLAN_CIPHER_SUITE_CCMP_256);
5413 break;
5414 case WPA_ALG_GCMP_256:
5415 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
5416 WLAN_CIPHER_SUITE_GCMP_256);
5417 break;
d723bab4 5418 case WPA_ALG_IGTK:
2aa5f847
JM		 5419 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
5420 WLAN_CIPHER_SUITE_AES_CMAC);
d723bab4 5421 break;
30675c34
JM		 5422 case WPA_ALG_BIP_GMAC_128:
5423 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
5424 WLAN_CIPHER_SUITE_BIP_GMAC_128);
5425 break;
5426 case WPA_ALG_BIP_GMAC_256:
5427 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
5428 WLAN_CIPHER_SUITE_BIP_GMAC_256);
5429 break;
5430 case WPA_ALG_BIP_CMAC_256:
5431 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
5432 WLAN_CIPHER_SUITE_BIP_CMAC_256);
5433 break;
d723bab4
JM		 5434 default:
5435 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
5436 "algorithm %d", __func__, alg);
0194fedb 5437 return -1;
d723bab4 5438 }
0194fedb
JB		 5439
5440 if (seq && seq_len)
5441 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq);
5442
5443 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key);
5444
5445 nla_nest_end(msg, key_attr);
5446
5447 return 0;
5448 nla_put_failure:
5449 return -1;
5450}
5451
c811d5bc 5452
cfaab580
ZY		 5453static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params,
5454 struct nl_msg *msg)
5455{
5456 int i, privacy = 0;
5457 struct nlattr *nl_keys, *nl_key;
5458
5459 for (i = 0; i < 4; i++) {
5460 if (!params->wep_key[i])
5461 continue;
5462 privacy = 1;
5463 break;
5464 }
ce04af5a
JM		 5465 if (params->wps == WPS_MODE_PRIVACY)
5466 privacy = 1;
5467 if (params->pairwise_suite &&
5468 params->pairwise_suite != WPA_CIPHER_NONE)
5469 privacy = 1;
5470
cfaab580
ZY		 5471 if (!privacy)
5472 return 0;
5473
5474 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
5475
5476 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS);
5477 if (!nl_keys)
5478 goto nla_put_failure;
5479
5480 for (i = 0; i < 4; i++) {
5481 if (!params->wep_key[i])
5482 continue;
5483
5484 nl_key = nla_nest_start(msg, i);
5485 if (!nl_key)
5486 goto nla_put_failure;
5487
5488 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i],
5489 params->wep_key[i]);
5490 if (params->wep_key_len[i] == 5)
5491 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
5492 WLAN_CIPHER_SUITE_WEP40);
5493 else
5494 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
5495 WLAN_CIPHER_SUITE_WEP104);
5496
5497 NLA_PUT_U8(msg, NL80211_KEY_IDX, i);
5498
5499 if (i == params->wep_tx_keyidx)
5500 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
5501
5502 nla_nest_end(msg, nl_key);
5503 }
5504 nla_nest_end(msg, nl_keys);
5505
5506 return 0;
5507
5508nla_put_failure:
5509 return -ENOBUFS;
5510}
5511
5512
c2a04078 5513static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
77339912
JM		 5514 const u8 *addr, int cmd, u16 reason_code,
5515 int local_state_change)
c2a04078
JM		 5516{
5517 int ret = -1;
5518 struct nl_msg *msg;
5519
5520 msg = nlmsg_alloc();
5521 if (!msg)
5522 return -1;
5523
9fb04070 5524 nl80211_cmd(drv, msg, 0, cmd);
c2a04078
JM		 5525
5526 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5527 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code);
817762d9
MI		 5528 if (addr)
5529 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
77339912
JM		 5530 if (local_state_change)
5531 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
c2a04078
JM		 5532
5533 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5534 msg = NULL;
5535 if (ret) {
3b7ea880
BG		 5536 wpa_dbg(drv->ctx, MSG_DEBUG,
5537 "nl80211: MLME command failed: reason=%u ret=%d (%s)",
5538 reason_code, ret, strerror(-ret));
c2a04078
JM		 5539 goto nla_put_failure;
5540 }
5541 ret = 0;
5542
5543nla_put_failure:
5544 nlmsg_free(msg);
5545 return ret;
5546}
3f5285e8
JM		 5547
5548
cfaab580 5549static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv,
817762d9 5550 int reason_code)
cfaab580 5551{
3f53c006
JJ		 5552 int ret;
5553
817762d9 5554 wpa_printf(MSG_DEBUG, "%s(reason_code=%d)", __func__, reason_code);
add9b7a4 5555 nl80211_mark_disconnected(drv);
817762d9 5556 /* Disconnect command doesn't need BSSID - it uses cached value */
3f53c006
JJ		 5557 ret = wpa_driver_nl80211_mlme(drv, NULL, NL80211_CMD_DISCONNECT,
5558 reason_code, 0);
5559 /*
5560 * For locally generated disconnect, supplicant already generates a
5561 * DEAUTH event, so ignore the event from NL80211.
5562 */
5563 drv->ignore_next_local_disconnect = ret == 0;
5564
5565 return ret;
cfaab580
ZY		 5566}
5567
5568
9ebce9c5
JM		 5569static int wpa_driver_nl80211_deauthenticate(struct i802_bss *bss,
5570 const u8 *addr, int reason_code)
3f5285e8 5571{
a2e40bb6 5572 struct wpa_driver_nl80211_data *drv = bss->drv;
cfaab580 5573 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
817762d9 5574 return wpa_driver_nl80211_disconnect(drv, reason_code);
2e75a2b3
JM		 5575 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)",
5576 __func__, MAC2STR(addr), reason_code);
add9b7a4 5577 nl80211_mark_disconnected(drv);
21bdbe38
JM		 5578 if (drv->nlmode == NL80211_IFTYPE_ADHOC)
5579 return nl80211_leave_ibss(drv);
c2a04078 5580 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE,
77339912 5581 reason_code, 0);
3f5285e8
JM		 5582}
5583
5584
536fd62d
JM		 5585static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv,
5586 struct wpa_driver_auth_params *params)
5587{
5588 int i;
5589
5590 drv->auth_freq = params->freq;
5591 drv->auth_alg = params->auth_alg;
5592 drv->auth_wep_tx_keyidx = params->wep_tx_keyidx;
5593 drv->auth_local_state_change = params->local_state_change;
5594 drv->auth_p2p = params->p2p;
5595
5596 if (params->bssid)
5597 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN);
5598 else
5599 os_memset(drv->auth_bssid_, 0, ETH_ALEN);
5600
5601 if (params->ssid) {
5602 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len);
5603 drv->auth_ssid_len = params->ssid_len;
5604 } else
5605 drv->auth_ssid_len = 0;
5606
5607
5608 os_free(drv->auth_ie);
5609 drv->auth_ie = NULL;
5610 drv->auth_ie_len = 0;
5611 if (params->ie) {
5612 drv->auth_ie = os_malloc(params->ie_len);
5613 if (drv->auth_ie) {
5614 os_memcpy(drv->auth_ie, params->ie, params->ie_len);
5615 drv->auth_ie_len = params->ie_len;
5616 }
5617 }
5618
5619 for (i = 0; i < 4; i++) {
5620 if (params->wep_key[i] && params->wep_key_len[i] &&
5621 params->wep_key_len[i] <= 16) {
5622 os_memcpy(drv->auth_wep_key[i], params->wep_key[i],
5623 params->wep_key_len[i]);
5624 drv->auth_wep_key_len[i] = params->wep_key_len[i];
5625 } else
5626 drv->auth_wep_key_len[i] = 0;
5627 }
5628}
5629
5630
c2a04078 5631static int wpa_driver_nl80211_authenticate(
9ebce9c5 5632 struct i802_bss *bss, struct wpa_driver_auth_params *params)
c2a04078 5633{
a2e40bb6 5634 struct wpa_driver_nl80211_data *drv = bss->drv;
a0b2f99b 5635 int ret = -1, i;
c2a04078
JM		 5636 struct nl_msg *msg;
5637 enum nl80211_auth_type type;
2f4f73b1 5638 enum nl80211_iftype nlmode;
6d6f4bb8 5639 int count = 0;
536fd62d
JM		 5640 int is_retry;
5641
5642 is_retry = drv->retry_auth;
5643 drv->retry_auth = 0;
c2a04078 5644
add9b7a4 5645 nl80211_mark_disconnected(drv);
e6b8efeb 5646 os_memset(drv->auth_bssid, 0, ETH_ALEN);
add9b7a4
JM		 5647 if (params->bssid)
5648 os_memcpy(drv->auth_attempt_bssid, params->bssid, ETH_ALEN);
5649 else
5650 os_memset(drv->auth_attempt_bssid, 0, ETH_ALEN);
af473088 5651 /* FIX: IBSS mode */
2f4f73b1
EP		 5652 nlmode = params->p2p ?
5653 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
5654 if (drv->nlmode != nlmode &&
9ebce9c5 5655 wpa_driver_nl80211_set_mode(bss, nlmode) < 0)
4a867032
JM		 5656 return -1;
5657
6d6f4bb8 5658retry:
c2a04078
JM		 5659 msg = nlmsg_alloc();
5660 if (!msg)
5661 return -1;
5662
5663 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)",
5664 drv->ifindex);
a0b2f99b 5665
9fb04070 5666 nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE);
0194fedb 5667
a0b2f99b
JM		 5668 for (i = 0; i < 4; i++) {
5669 if (!params->wep_key[i])
5670 continue;
9ebce9c5 5671 wpa_driver_nl80211_set_key(bss->ifname, bss, WPA_ALG_WEP,
2ea2fcc7 5672 NULL, i,
a0b2f99b
JM		 5673 i == params->wep_tx_keyidx, NULL, 0,
5674 params->wep_key[i],
5675 params->wep_key_len[i]);
0194fedb
JB		 5676 if (params->wep_tx_keyidx != i)
5677 continue;
5678 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0,
5679 params->wep_key[i], params->wep_key_len[i])) {
5680 nlmsg_free(msg);
5681 return -1;
5682 }
a0b2f99b
JM		 5683 }
5684
c2a04078
JM		 5685 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5686 if (params->bssid) {
5687 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
5688 MAC2STR(params->bssid));
5689 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
5690 }
5691 if (params->freq) {
5692 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
5693 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
5694 }
5695 if (params->ssid) {
5696 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
5697 params->ssid, params->ssid_len);
5698 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
5699 params->ssid);
5700 }
5701 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len);
5702 if (params->ie)
5703 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie);
569fed90
JM		 5704 if (params->sae_data) {
5705 wpa_hexdump(MSG_DEBUG, " * SAE data", params->sae_data,
5706 params->sae_data_len);
5707 NLA_PUT(msg, NL80211_ATTR_SAE_DATA, params->sae_data_len,
5708 params->sae_data);
5709 }
abd9fafa 5710 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
c2a04078 5711 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
abd9fafa 5712 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
c2a04078 5713 type = NL80211_AUTHTYPE_SHARED_KEY;
abd9fafa 5714 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
c2a04078 5715 type = NL80211_AUTHTYPE_NETWORK_EAP;
abd9fafa 5716 else if (params->auth_alg & WPA_AUTH_ALG_FT)
c2a04078 5717 type = NL80211_AUTHTYPE_FT;
569fed90
JM		 5718 else if (params->auth_alg & WPA_AUTH_ALG_SAE)
5719 type = NL80211_AUTHTYPE_SAE;
c2a04078
JM		 5720 else
5721 goto nla_put_failure;
5722 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
5723 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
77339912
JM		 5724 if (params->local_state_change) {
5725 wpa_printf(MSG_DEBUG, " * Local state change only");
5726 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
5727 }
c2a04078
JM		 5728
5729 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5730 msg = NULL;
5731 if (ret) {
3b7ea880
BG		 5732 wpa_dbg(drv->ctx, MSG_DEBUG,
5733 "nl80211: MLME command failed (auth): ret=%d (%s)",
5734 ret, strerror(-ret));
6d6f4bb8 5735 count++;
77339912
JM		 5736 if (ret == -EALREADY && count == 1 && params->bssid &&
5737 !params->local_state_change) {
6d6f4bb8
JM		 5738 /*
5739 * mac80211 does not currently accept new
5740 * authentication if we are already authenticated. As a
5741 * workaround, force deauthentication and try again.
5742 */
5743 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication "
5744 "after forced deauthentication");
5745 wpa_driver_nl80211_deauthenticate(
5205c4f9 5746 bss, params->bssid,
6d6f4bb8
JM		 5747 WLAN_REASON_PREV_AUTH_NOT_VALID);
5748 nlmsg_free(msg);
5749 goto retry;
5750 }
536fd62d
JM		 5751
5752 if (ret == -ENOENT && params->freq && !is_retry) {
5753 /*
5754 * cfg80211 has likely expired the BSS entry even
5755 * though it was previously available in our internal
5756 * BSS table. To recover quickly, start a single
5757 * channel scan on the specified channel.
5758 */
5759 struct wpa_driver_scan_params scan;
5760 int freqs[2];
5761
5762 os_memset(&scan, 0, sizeof(scan));
5763 scan.num_ssids = 1;
5764 if (params->ssid) {
5765 scan.ssids[0].ssid = params->ssid;
5766 scan.ssids[0].ssid_len = params->ssid_len;
5767 }
5768 freqs[0] = params->freq;
5769 freqs[1] = 0;
5770 scan.freqs = freqs;
5771 wpa_printf(MSG_DEBUG, "nl80211: Trigger single "
5772 "channel scan to refresh cfg80211 BSS "
5773 "entry");
5774 ret = wpa_driver_nl80211_scan(bss, &scan);
5775 if (ret == 0) {
5776 nl80211_copy_auth_params(drv, params);
5777 drv->scan_for_auth = 1;
5778 }
8c3ba078
JM		 5779 } else if (is_retry) {
5780 /*
5781 * Need to indicate this with an event since the return
5782 * value from the retry is not delivered to core code.
5783 */
5784 union wpa_event_data event;
5785 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry "
5786 "failed");
5787 os_memset(&event, 0, sizeof(event));
5788 os_memcpy(event.timeout_event.addr, drv->auth_bssid_,
5789 ETH_ALEN);
5790 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT,
5791 &event);
536fd62d
JM		 5792 }
5793
c2a04078
JM		 5794 goto nla_put_failure;
5795 }
5796 ret = 0;
5797 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send "
5798 "successfully");
5799
5800nla_put_failure:
5801 nlmsg_free(msg);
5802 return ret;
5803}
5804
5805
536fd62d
JM		 5806static int wpa_driver_nl80211_authenticate_retry(
5807 struct wpa_driver_nl80211_data *drv)
5808{
5809 struct wpa_driver_auth_params params;
834ee56f 5810 struct i802_bss *bss = drv->first_bss;
536fd62d
JM		 5811 int i;
5812
5813 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again");
5814
5815 os_memset(&params, 0, sizeof(params));
5816 params.freq = drv->auth_freq;
5817 params.auth_alg = drv->auth_alg;
5818 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx;
5819 params.local_state_change = drv->auth_local_state_change;
5820 params.p2p = drv->auth_p2p;
5821
5822 if (!is_zero_ether_addr(drv->auth_bssid_))
5823 params.bssid = drv->auth_bssid_;
5824
5825 if (drv->auth_ssid_len) {
5826 params.ssid = drv->auth_ssid;
5827 params.ssid_len = drv->auth_ssid_len;
5828 }
5829
5830 params.ie = drv->auth_ie;
5831 params.ie_len = drv->auth_ie_len;
5832
5833 for (i = 0; i < 4; i++) {
5834 if (drv->auth_wep_key_len[i]) {
5835 params.wep_key[i] = drv->auth_wep_key[i];
5836 params.wep_key_len[i] = drv->auth_wep_key_len[i];
5837 }
5838 }
5839
5840 drv->retry_auth = 1;
5841 return wpa_driver_nl80211_authenticate(bss, &params);
5842}
5843
5844
282d5590
JM		 5845struct phy_info_arg {
5846 u16 *num_modes;
5847 struct hostapd_hw_modes *modes;
43245552 5848 int last_mode, last_chan_idx;
282d5590
JM		 5849};
5850
e62a1d43
JM		 5851static void phy_info_ht_capa(struct hostapd_hw_modes *mode, struct nlattr *capa,
5852 struct nlattr *ampdu_factor,
5853 struct nlattr *ampdu_density,
5854 struct nlattr *mcs_set)
5855{
5856 if (capa)
5857 mode->ht_capab = nla_get_u16(capa);
5858
5859 if (ampdu_factor)
5860 mode->a_mpdu_params |= nla_get_u8(ampdu_factor) & 0x03;
5861
5862 if (ampdu_density)
5863 mode->a_mpdu_params |= nla_get_u8(ampdu_density) << 2;
5864
5865 if (mcs_set && nla_len(mcs_set) >= 16) {
5866 u8 *mcs;
5867 mcs = nla_data(mcs_set);
5868 os_memcpy(mode->mcs_set, mcs, 16);
5869 }
5870}
5871
5872
5873static void phy_info_vht_capa(struct hostapd_hw_modes *mode,
5874 struct nlattr *capa,
5875 struct nlattr *mcs_set)
5876{
5877 if (capa)
5878 mode->vht_capab = nla_get_u32(capa);
5879
5880 if (mcs_set && nla_len(mcs_set) >= 8) {
5881 u8 *mcs;
5882 mcs = nla_data(mcs_set);
5883 os_memcpy(mode->vht_mcs_set, mcs, 8);
5884 }
5885}
5886
5887
214a77b0
JM		 5888static void phy_info_freq(struct hostapd_hw_modes *mode,
5889 struct hostapd_channel_data *chan,
5890 struct nlattr *tb_freq[])
5891{
e864c0ae 5892 u8 channel;
214a77b0
JM		 5893 chan->freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
5894 chan->flag = 0;
e864c0ae
JM		 5895 if (ieee80211_freq_to_chan(chan->freq, &channel) != NUM_HOSTAPD_MODES)
5896 chan->chan = channel;
214a77b0
JM		 5897
5898 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
5899 chan->flag |= HOSTAPD_CHAN_DISABLED;
9fcd300d
JM		 5900 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IR])
5901 chan->flag |= HOSTAPD_CHAN_PASSIVE_SCAN | HOSTAPD_CHAN_NO_IBSS;
214a77b0
JM		 5902 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
5903 chan->flag |= HOSTAPD_CHAN_RADAR;
5904
fc96522e
SW		 5905 if (tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]) {
5906 enum nl80211_dfs_state state =
5907 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_DFS_STATE]);
5908
5909 switch (state) {
5910 case NL80211_DFS_USABLE:
5911 chan->flag |= HOSTAPD_CHAN_DFS_USABLE;
5912 break;
5913 case NL80211_DFS_AVAILABLE:
5914 chan->flag |= HOSTAPD_CHAN_DFS_AVAILABLE;
5915 break;
5916 case NL80211_DFS_UNAVAILABLE:
5917 chan->flag |= HOSTAPD_CHAN_DFS_UNAVAILABLE;
5918 break;
5919 }
5920 }
214a77b0
JM		 5921}
5922
5923
e62a1d43
JM		 5924static int phy_info_freqs(struct phy_info_arg *phy_info,
5925 struct hostapd_hw_modes *mode, struct nlattr *tb)
282d5590 5926{
282d5590
JM		 5927 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
5928 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
5929 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
9fcd300d 5930 [NL80211_FREQUENCY_ATTR_NO_IR] = { .type = NLA_FLAG },
282d5590
JM		 5931 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
5932 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
fc96522e 5933 [NL80211_FREQUENCY_ATTR_DFS_STATE] = { .type = NLA_U32 },
282d5590 5934 };
e62a1d43
JM		 5935 int new_channels = 0;
5936 struct hostapd_channel_data *channel;
5937 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
5938 struct nlattr *nl_freq;
5939 int rem_freq, idx;
5940
5941 if (tb == NULL)
5942 return NL_OK;
5943
5944 nla_for_each_nested(nl_freq, tb, rem_freq) {
5945 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX,
5946 nla_data(nl_freq), nla_len(nl_freq), freq_policy);
5947 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
5948 continue;
5949 new_channels++;
5950 }
5951
5952 channel = os_realloc_array(mode->channels,
5953 mode->num_channels + new_channels,
5954 sizeof(struct hostapd_channel_data));
5955 if (!channel)
5956 return NL_SKIP;
5957
5958 mode->channels = channel;
5959 mode->num_channels += new_channels;
5960
5961 idx = phy_info->last_chan_idx;
5962
5963 nla_for_each_nested(nl_freq, tb, rem_freq) {
5964 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX,
5965 nla_data(nl_freq), nla_len(nl_freq), freq_policy);
5966 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
5967 continue;
214a77b0 5968 phy_info_freq(mode, &mode->channels[idx], tb_freq);
e62a1d43
JM		 5969 idx++;
5970 }
5971 phy_info->last_chan_idx = idx;
5972
5973 return NL_OK;
5974}
5975
5976
5977static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb)
5978{
282d5590
JM		 5979 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
5980 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
3cfcad1b
JM		 5981 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] =
5982 { .type = NLA_FLAG },
282d5590 5983 };
e62a1d43 5984 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
282d5590 5985 struct nlattr *nl_rate;
e62a1d43
JM		 5986 int rem_rate, idx;
5987
5988 if (tb == NULL)
5989 return NL_OK;
5990
5991 nla_for_each_nested(nl_rate, tb, rem_rate) {
5992 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX,
5993 nla_data(nl_rate), nla_len(nl_rate),
5994 rate_policy);
5995 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
5996 continue;
5997 mode->num_rates++;
5998 }
5999
6000 mode->rates = os_calloc(mode->num_rates, sizeof(int));
6001 if (!mode->rates)
6002 return NL_SKIP;
6003
6004 idx = 0;
6005
6006 nla_for_each_nested(nl_rate, tb, rem_rate) {
6007 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX,
6008 nla_data(nl_rate), nla_len(nl_rate),
6009 rate_policy);
6010 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
6011 continue;
6012 mode->rates[idx] = nla_get_u32(
6013 tb_rate[NL80211_BITRATE_ATTR_RATE]);
e62a1d43
JM		 6014 idx++;
6015 }
6016
6017 return NL_OK;
6018}
6019
6020
6021static int phy_info_band(struct phy_info_arg *phy_info, struct nlattr *nl_band)
6022{
6023 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
282d5590 6024 struct hostapd_hw_modes *mode;
e62a1d43 6025 int ret;
282d5590 6026
3cfcad1b
JM		 6027 if (phy_info->last_mode != nl_band->nla_type) {
6028 mode = os_realloc_array(phy_info->modes,
6029 *phy_info->num_modes + 1,
6030 sizeof(*mode));
6031 if (!mode)
6032 return NL_SKIP;
6033 phy_info->modes = mode;
6034
6035 mode = &phy_info->modes[*(phy_info->num_modes)];
6036 os_memset(mode, 0, sizeof(*mode));
6037 mode->mode = NUM_HOSTAPD_MODES;
c8ebeda4
MK		 6038 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN |
6039 HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN;
6040
6041 /*
6042 * Unsupported VHT MCS stream is defined as value 3, so the VHT
6043 * MCS RX/TX map must be initialized with 0xffff to mark all 8
6044 * possible streams as unsupported. This will be overridden if
6045 * driver advertises VHT support.
6046 */
6047 mode->vht_mcs_set[0] = 0xff;
6048 mode->vht_mcs_set[1] = 0xff;
6049 mode->vht_mcs_set[4] = 0xff;
6050 mode->vht_mcs_set[5] = 0xff;
6051
3cfcad1b
JM		 6052 *(phy_info->num_modes) += 1;
6053 phy_info->last_mode = nl_band->nla_type;
6054 phy_info->last_chan_idx = 0;
6055 } else
6056 mode = &phy_info->modes[*(phy_info->num_modes) - 1];
282d5590 6057
3cfcad1b
JM		 6058 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
6059 nla_len(nl_band), NULL);
282d5590 6060
e62a1d43
JM		 6061 phy_info_ht_capa(mode, tb_band[NL80211_BAND_ATTR_HT_CAPA],
6062 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR],
6063 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY],
6064 tb_band[NL80211_BAND_ATTR_HT_MCS_SET]);
6065 phy_info_vht_capa(mode, tb_band[NL80211_BAND_ATTR_VHT_CAPA],
6066 tb_band[NL80211_BAND_ATTR_VHT_MCS_SET]);
6067 ret = phy_info_freqs(phy_info, mode, tb_band[NL80211_BAND_ATTR_FREQS]);
6068 if (ret != NL_OK)
6069 return ret;
6070 ret = phy_info_rates(mode, tb_band[NL80211_BAND_ATTR_RATES]);
6071 if (ret != NL_OK)
6072 return ret;
282d5590 6073
3cfcad1b
JM		 6074 return NL_OK;
6075}
6076
6077
6078static int phy_info_handler(struct nl_msg *msg, void *arg)
6079{
6080 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
6081 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
6082 struct phy_info_arg *phy_info = arg;
6083 struct nlattr *nl_band;
6084 int rem_band;
6085
6086 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
6087 genlmsg_attrlen(gnlh, 0), NULL);
6088
6089 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
6090 return NL_SKIP;
6091
6092 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band)
6093 {
6094 int res = phy_info_band(phy_info, nl_band);
6095 if (res != NL_OK)
6096 return res;
6097 }
6098
282d5590
JM		 6099 return NL_SKIP;
6100}
6101
3cfcad1b 6102
282d5590 6103static struct hostapd_hw_modes *
c30a4ab0
JB		 6104wpa_driver_nl80211_postprocess_modes(struct hostapd_hw_modes *modes,
6105 u16 *num_modes)
282d5590
JM		 6106{
6107 u16 m;
6108 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
6109 int i, mode11g_idx = -1;
6110
c30a4ab0
JB		 6111 /* heuristic to set up modes */
6112 for (m = 0; m < *num_modes; m++) {
6113 if (!modes[m].num_channels)
6114 continue;
6115 if (modes[m].channels[0].freq < 4000) {
6116 modes[m].mode = HOSTAPD_MODE_IEEE80211B;
6117 for (i = 0; i < modes[m].num_rates; i++) {
6118 if (modes[m].rates[i] > 200) {
6119 modes[m].mode = HOSTAPD_MODE_IEEE80211G;
6120 break;
6121 }
6122 }
6123 } else if (modes[m].channels[0].freq > 50000)
6124 modes[m].mode = HOSTAPD_MODE_IEEE80211AD;
6125 else
6126 modes[m].mode = HOSTAPD_MODE_IEEE80211A;
6127 }
6128
282d5590
JM		 6129 /* If only 802.11g mode is included, use it to construct matching
6130 * 802.11b mode data. */
6131
6132 for (m = 0; m < *num_modes; m++) {
6133 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
6134 return modes; /* 802.11b already included */
6135 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
6136 mode11g_idx = m;
6137 }
6138
6139 if (mode11g_idx < 0)
6140 return modes; /* 2.4 GHz band not supported at all */
6141
067ffa26 6142 nmodes = os_realloc_array(modes, *num_modes + 1, sizeof(*nmodes));
282d5590
JM		 6143 if (nmodes == NULL)
6144 return modes; /* Could not add 802.11b mode */
6145
6146 mode = &nmodes[*num_modes];
6147 os_memset(mode, 0, sizeof(*mode));
6148 (*num_modes)++;
6149 modes = nmodes;
6150
6151 mode->mode = HOSTAPD_MODE_IEEE80211B;
6152
6153 mode11g = &modes[mode11g_idx];
6154 mode->num_channels = mode11g->num_channels;
6155 mode->channels = os_malloc(mode11g->num_channels *
6156 sizeof(struct hostapd_channel_data));
6157 if (mode->channels == NULL) {
6158 (*num_modes)--;
6159 return modes; /* Could not add 802.11b mode */
6160 }
6161 os_memcpy(mode->channels, mode11g->channels,
6162 mode11g->num_channels * sizeof(struct hostapd_channel_data));
6163
6164 mode->num_rates = 0;
fb7842aa 6165 mode->rates = os_malloc(4 * sizeof(int));
282d5590
JM		 6166 if (mode->rates == NULL) {
6167 os_free(mode->channels);
6168 (*num_modes)--;
6169 return modes; /* Could not add 802.11b mode */
6170 }
6171
6172 for (i = 0; i < mode11g->num_rates; i++) {
fb7842aa
JM		 6173 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 &&
6174 mode11g->rates[i] != 55 && mode11g->rates[i] != 110)
282d5590
JM		 6175 continue;
6176 mode->rates[mode->num_rates] = mode11g->rates[i];
6177 mode->num_rates++;
6178 if (mode->num_rates == 4)
6179 break;
6180 }
6181
6182 if (mode->num_rates == 0) {
6183 os_free(mode->channels);
6184 os_free(mode->rates);
6185 (*num_modes)--;
6186 return modes; /* No 802.11b rates */
6187 }
6188
6189 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
6190 "information");
6191
6192 return modes;
6193}
6194
6195
d8e66e80
JM		 6196static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start,
6197 int end)
6198{
6199 int c;
6200
6201 for (c = 0; c < mode->num_channels; c++) {
6202 struct hostapd_channel_data *chan = &mode->channels[c];
6203 if (chan->freq - 10 >= start && chan->freq + 10 <= end)
6204 chan->flag |= HOSTAPD_CHAN_HT40;
6205 }
6206}
6207
6208
6209static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start,
6210 int end)
6211{
6212 int c;
6213
6214 for (c = 0; c < mode->num_channels; c++) {
6215 struct hostapd_channel_data *chan = &mode->channels[c];
6216 if (!(chan->flag & HOSTAPD_CHAN_HT40))
6217 continue;
6218 if (chan->freq - 30 >= start && chan->freq - 10 <= end)
6219 chan->flag |= HOSTAPD_CHAN_HT40MINUS;
6220 if (chan->freq + 10 >= start && chan->freq + 30 <= end)
6221 chan->flag |= HOSTAPD_CHAN_HT40PLUS;
6222 }
6223}
6224
6225
6651f1f9
HS		 6226static void nl80211_reg_rule_max_eirp(struct nlattr *tb[],
6227 struct phy_info_arg *results)
6228{
6229 u32 start, end, max_eirp;
6230 u16 m;
6231
6232 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
6233 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
6234 tb[NL80211_ATTR_POWER_RULE_MAX_EIRP] == NULL)
6235 return;
6236
6237 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
6238 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
6239 max_eirp = nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]) / 100;
6240
6241 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u mBm",
6242 start, end, max_eirp);
6243
6244 for (m = 0; m < *results->num_modes; m++) {
6245 int c;
6246 struct hostapd_hw_modes *mode = &results->modes[m];
6247
6248 for (c = 0; c < mode->num_channels; c++) {
6249 struct hostapd_channel_data *chan = &mode->channels[c];
6250 if ((u32) chan->freq - 10 >= start &&
6251 (u32) chan->freq + 10 <= end)
6252 chan->max_tx_power = max_eirp;
6253 }
6254 }
6255}
6256
6257
d8e66e80
JM		 6258static void nl80211_reg_rule_ht40(struct nlattr *tb[],
6259 struct phy_info_arg *results)
6260{
6261 u32 start, end, max_bw;
6262 u16 m;
6263
6264 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
6265 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
6266 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
6267 return;
6268
6269 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
6270 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
6271 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
6272
6273 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz",
6274 start, end, max_bw);
6275 if (max_bw < 40)
6276 return;
6277
6278 for (m = 0; m < *results->num_modes; m++) {
6279 if (!(results->modes[m].ht_capab &
6280 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
6281 continue;
6282 nl80211_set_ht40_mode(&results->modes[m], start, end);
6283 }
6284}
6285
6286
6287static void nl80211_reg_rule_sec(struct nlattr *tb[],
6288 struct phy_info_arg *results)
6289{
6290 u32 start, end, max_bw;
6291 u16 m;
6292
6293 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
6294 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
6295 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
6296 return;
6297
6298 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
6299 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
6300 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
6301
6302 if (max_bw < 20)
6303 return;
6304
6305 for (m = 0; m < *results->num_modes; m++) {
6306 if (!(results->modes[m].ht_capab &
6307 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
6308 continue;
6309 nl80211_set_ht40_mode_sec(&results->modes[m], start, end);
6310 }
6311}
6312
6313
53cfad46
EP		 6314static void nl80211_set_vht_mode(struct hostapd_hw_modes *mode, int start,
6315 int end)
6316{
6317 int c;
6318
6319 for (c = 0; c < mode->num_channels; c++) {
6320 struct hostapd_channel_data *chan = &mode->channels[c];
6321 if (chan->freq - 10 >= start && chan->freq + 70 <= end)
6322 chan->flag |= HOSTAPD_CHAN_VHT_10_70;
6323
6324 if (chan->freq - 30 >= start && chan->freq + 50 <= end)
6325 chan->flag |= HOSTAPD_CHAN_VHT_30_50;
6326
6327 if (chan->freq - 50 >= start && chan->freq + 30 <= end)
6328 chan->flag |= HOSTAPD_CHAN_VHT_50_30;
6329
6330 if (chan->freq - 70 >= start && chan->freq + 10 <= end)
6331 chan->flag |= HOSTAPD_CHAN_VHT_70_10;
6332 }
6333}
6334
6335
6336static void nl80211_reg_rule_vht(struct nlattr *tb[],
6337 struct phy_info_arg *results)
6338{
6339 u32 start, end, max_bw;
6340 u16 m;
6341
6342 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
6343 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
6344 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
6345 return;
6346
6347 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
6348 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
6349 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
6350
6351 if (max_bw < 80)
6352 return;
6353
6354 for (m = 0; m < *results->num_modes; m++) {
6355 if (!(results->modes[m].ht_capab &
6356 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
6357 continue;
6358 /* TODO: use a real VHT support indication */
6359 if (!results->modes[m].vht_capab)
6360 continue;
6361
6362 nl80211_set_vht_mode(&results->modes[m], start, end);
6363 }
6364}
6365
6366
d8e66e80
JM		 6367static int nl80211_get_reg(struct nl_msg *msg, void *arg)
6368{
6369 struct phy_info_arg *results = arg;
6370 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
6371 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
6372 struct nlattr *nl_rule;
6373 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1];
6374 int rem_rule;
6375 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
6376 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
6377 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
6378 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
6379 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
6380 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
6381 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
6382 };
6383
6384 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
6385 genlmsg_attrlen(gnlh, 0), NULL);
6386 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] ||
6387 !tb_msg[NL80211_ATTR_REG_RULES]) {
6388 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information "
6389 "available");
6390 return NL_SKIP;
6391 }
6392
6393 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s",
6394 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]));
6395
6396 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
6397 {
6398 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
6399 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
6400 nl80211_reg_rule_ht40(tb_rule, results);
6651f1f9 6401 nl80211_reg_rule_max_eirp(tb_rule, results);
d8e66e80
JM		 6402 }
6403
6404 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
6405 {
6406 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
6407 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
6408 nl80211_reg_rule_sec(tb_rule, results);
6409 }
6410
53cfad46
EP		 6411 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
6412 {
6413 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
6414 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
6415 nl80211_reg_rule_vht(tb_rule, results);
6416 }
6417
d8e66e80
JM		 6418 return NL_SKIP;
6419}
6420
6421
53cfad46
EP		 6422static int nl80211_set_regulatory_flags(struct wpa_driver_nl80211_data *drv,
6423 struct phy_info_arg *results)
d8e66e80
JM		 6424{
6425 struct nl_msg *msg;
6426
6427 msg = nlmsg_alloc();
6428 if (!msg)
6429 return -ENOMEM;
6430
9fb04070 6431 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG);
d8e66e80
JM		 6432 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results);
6433}
6434
6435
282d5590
JM		 6436static struct hostapd_hw_modes *
6437wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
6438{
43245552 6439 u32 feat;
a2e40bb6
FF		 6440 struct i802_bss *bss = priv;
6441 struct wpa_driver_nl80211_data *drv = bss->drv;
282d5590
JM		 6442 struct nl_msg *msg;
6443 struct phy_info_arg result = {
6444 .num_modes = num_modes,
6445 .modes = NULL,
43245552 6446 .last_mode = -1,
282d5590
JM		 6447 };
6448
6449 *num_modes = 0;
6450 *flags = 0;
6451
6452 msg = nlmsg_alloc();
6453 if (!msg)
6454 return NULL;
6455
43245552
DJ		 6456 feat = get_nl80211_protocol_features(drv);
6457 if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)
6458 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY);
6459 else
6460 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY);
282d5590 6461
43245552 6462 NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP);
282d5590
JM		 6463 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6464
d8e66e80 6465 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) {
53cfad46 6466 nl80211_set_regulatory_flags(drv, &result);
c30a4ab0
JB		 6467 return wpa_driver_nl80211_postprocess_modes(result.modes,
6468 num_modes);
d8e66e80 6469 }
5883168a 6470 msg = NULL;
282d5590 6471 nla_put_failure:
5883168a 6472 nlmsg_free(msg);
282d5590
JM		 6473 return NULL;
6474}
6475
6476
a11241fa
JB		 6477static int wpa_driver_nl80211_send_mntr(struct wpa_driver_nl80211_data *drv,
6478 const void *data, size_t len,
6479 int encrypt, int noack)
2c2010ac
JM		 6480{
6481 __u8 rtap_hdr[] = {
6482 0x00, 0x00, /* radiotap version */
6483 0x0e, 0x00, /* radiotap length */
6484 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */
6485 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */
6486 0x00, /* padding */
6487 0x00, 0x00, /* RX and TX flags to indicate that */
6488 0x00, 0x00, /* this is the injected frame directly */
6489 };
6490 struct iovec iov[2] = {
6491 {
6492 .iov_base = &rtap_hdr,
6493 .iov_len = sizeof(rtap_hdr),
6494 },
6495 {
6496 .iov_base = (void *) data,
6497 .iov_len = len,
6498 }
6499 };
6500 struct msghdr msg = {
6501 .msg_name = NULL,
6502 .msg_namelen = 0,
6503 .msg_iov = iov,
6504 .msg_iovlen = 2,
6505 .msg_control = NULL,
6506 .msg_controllen = 0,
6507 .msg_flags = 0,
6508 };
ebbec8b2 6509 int res;
fab25336 6510 u16 txflags = 0;
2c2010ac
JM		 6511
6512 if (encrypt)
6513 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP;
6514
866af8b6
JM		 6515 if (drv->monitor_sock < 0) {
6516 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available "
6517 "for %s", __func__);
6518 return -1;
6519 }
6520
fab25336
HS		 6521 if (noack)
6522 txflags |= IEEE80211_RADIOTAP_F_TX_NOACK;
9d7a63dc 6523 WPA_PUT_LE16(&rtap_hdr[12], txflags);
fab25336 6524
ebbec8b2
JM		 6525 res = sendmsg(drv->monitor_sock, &msg, 0);
6526 if (res < 0) {
6527 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno));
6528 return -1;
6529 }
6530 return 0;
2c2010ac
JM		 6531}
6532
6533
a11241fa
JB		 6534static int wpa_driver_nl80211_send_frame(struct i802_bss *bss,
6535 const void *data, size_t len,
55231068
JM		 6536 int encrypt, int noack,
6537 unsigned int freq, int no_cck,
6538 int offchanok, unsigned int wait_time)
a11241fa
JB		 6539{
6540 struct wpa_driver_nl80211_data *drv = bss->drv;
6541 u64 cookie;
41cc50d1 6542 int res;
a11241fa 6543
af964484
JM		 6544 if (freq == 0) {
6545 wpa_printf(MSG_DEBUG, "nl80211: send_frame - Use bss->freq=%u",
6546 bss->freq);
55231068 6547 freq = bss->freq;
af964484 6548 }
55231068 6549
739faee2
JM		 6550 if (drv->use_monitor) {
6551 wpa_printf(MSG_DEBUG, "nl80211: send_frame(freq=%u bss->freq=%u) -> send_mntr",
6552 freq, bss->freq);
a11241fa
JB		 6553 return wpa_driver_nl80211_send_mntr(drv, data, len,
6554 encrypt, noack);
739faee2 6555 }
a11241fa 6556
739faee2 6557 wpa_printf(MSG_DEBUG, "nl80211: send_frame -> send_frame_cmd");
41cc50d1
JM		 6558 res = nl80211_send_frame_cmd(bss, freq, wait_time, data, len,
6559 &cookie, no_cck, noack, offchanok);
6560 if (res == 0 && !noack) {
6561 const struct ieee80211_mgmt *mgmt;
6562 u16 fc;
6563
6564 mgmt = (const struct ieee80211_mgmt *) data;
6565 fc = le_to_host16(mgmt->frame_control);
6566 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
6567 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_ACTION) {
6568 wpa_printf(MSG_MSGDUMP,
6569 "nl80211: Update send_action_cookie from 0x%llx to 0x%llx",
6570 (long long unsigned int)
6571 drv->send_action_cookie,
6572 (long long unsigned int) cookie);
6573 drv->send_action_cookie = cookie;
6574 }
6575 }
6576
6577 return res;
a11241fa
JB		 6578}
6579
6580
9ebce9c5
JM		 6581static int wpa_driver_nl80211_send_mlme(struct i802_bss *bss, const u8 *data,
6582 size_t data_len, int noack,
6583 unsigned int freq, int no_cck,
6584 int offchanok,
6585 unsigned int wait_time)
2c2010ac 6586{
a2e40bb6 6587 struct wpa_driver_nl80211_data *drv = bss->drv;
2c2010ac 6588 struct ieee80211_mgmt *mgmt;
7a47d567 6589 int encrypt = 1;
2c2010ac
JM		 6590 u16 fc;
6591
6592 mgmt = (struct ieee80211_mgmt *) data;
6593 fc = le_to_host16(mgmt->frame_control);
af964484
JM		 6594 wpa_printf(MSG_DEBUG, "nl80211: send_mlme - noack=%d freq=%u no_cck=%d offchanok=%d wait_time=%u fc=0x%x nlmode=%d",
6595 noack, freq, no_cck, offchanok, wait_time, fc, drv->nlmode);
2c2010ac 6596
8e12685c
AS		 6597 if ((is_sta_interface(drv->nlmode) ||
6598 drv->nlmode == NL80211_IFTYPE_P2P_DEVICE) &&
5582a5d1
JB		 6599 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
6600 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) {
6601 /*
6602 * The use of last_mgmt_freq is a bit of a hack,
6603 * but it works due to the single-threaded nature
6604 * of wpa_supplicant.
6605 */
af964484
JM		 6606 if (freq == 0) {
6607 wpa_printf(MSG_DEBUG, "nl80211: Use last_mgmt_freq=%d",
6608 drv->last_mgmt_freq);
55231068 6609 freq = drv->last_mgmt_freq;
af964484 6610 }
55231068 6611 return nl80211_send_frame_cmd(bss, freq, 0,
88df0ef7
JB		 6612 data, data_len, NULL, 1, noack,
6613 1);
5582a5d1
JB		 6614 }
6615
61cbe2ff 6616 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) {
af964484
JM		 6617 if (freq == 0) {
6618 wpa_printf(MSG_DEBUG, "nl80211: Use bss->freq=%d",
6619 bss->freq);
55231068 6620 freq = bss->freq;
af964484 6621 }
b5671498
JM		 6622 return nl80211_send_frame_cmd(bss, freq,
6623 (int) freq == bss->freq ? 0 :
6624 wait_time,
d8d6b32e
DG		 6625 data, data_len,
6626 &drv->send_action_cookie,
55231068 6627 no_cck, noack, offchanok);
86957e62
JM		 6628 }
6629
2c2010ac
JM		 6630 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
6631 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) {
6632 /*
6633 * Only one of the authentication frame types is encrypted.
6634 * In order for static WEP encryption to work properly (i.e.,
6635 * to not encrypt the frame), we need to tell mac80211 about
6636 * the frames that must not be encrypted.
6637 */
6638 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
6639 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction);
7a47d567
JB		 6640 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3)
6641 encrypt = 0;
2c2010ac
JM		 6642 }
6643
739faee2 6644 wpa_printf(MSG_DEBUG, "nl80211: send_mlme -> send_frame");
a11241fa 6645 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt,
55231068
JM		 6646 noack, freq, no_cck, offchanok,
6647 wait_time);
6648}
6649
6650
31357268 6651static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble,
e5693c47
JM		 6652 int slot, int ht_opmode, int ap_isolate,
6653 int *basic_rates)
31357268
JM		 6654{
6655 struct wpa_driver_nl80211_data *drv = bss->drv;
6656 struct nl_msg *msg;
6657
6658 msg = nlmsg_alloc();
6659 if (!msg)
6660 return -ENOMEM;
6661
9fb04070 6662 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS);
31357268
JM		 6663
6664 if (cts >= 0)
6665 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts);
6666 if (preamble >= 0)
6667 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble);
6668 if (slot >= 0)
6669 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot);
6670 if (ht_opmode >= 0)
6671 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode);
d03e8d11
JM		 6672 if (ap_isolate >= 0)
6673 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate);
e5693c47
JM		 6674
6675 if (basic_rates) {
6676 u8 rates[NL80211_MAX_SUPP_RATES];
6677 u8 rates_len = 0;
6678 int i;
6679
6680 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0;
6681 i++)
6682 rates[rates_len++] = basic_rates[i] / 5;
6683
6684 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates);
6685 }
6686
31357268
JM		 6687 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
6688
6689 return send_and_recv_msgs(drv, msg, NULL, NULL);
6690 nla_put_failure:
5883168a 6691 nlmsg_free(msg);
31357268
JM		 6692 return -ENOBUFS;
6693}
6694
6695
3c4ca363
VN		 6696static int wpa_driver_nl80211_set_acl(void *priv,
6697 struct hostapd_acl_params *params)
6698{
6699 struct i802_bss *bss = priv;
6700 struct wpa_driver_nl80211_data *drv = bss->drv;
6701 struct nl_msg *msg;
6702 struct nlattr *acl;
6703 unsigned int i;
6704 int ret = 0;
6705
6706 if (!(drv->capa.max_acl_mac_addrs))
6707 return -ENOTSUP;
6708
6709 if (params->num_mac_acl > drv->capa.max_acl_mac_addrs)
6710 return -ENOTSUP;
6711
6712 msg = nlmsg_alloc();
6713 if (!msg)
6714 return -ENOMEM;
6715
6716 wpa_printf(MSG_DEBUG, "nl80211: Set %s ACL (num_mac_acl=%u)",
6717 params->acl_policy ? "Accept" : "Deny", params->num_mac_acl);
6718
6719 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_MAC_ACL);
6720
6721 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6722
6723 NLA_PUT_U32(msg, NL80211_ATTR_ACL_POLICY, params->acl_policy ?
6724 NL80211_ACL_POLICY_DENY_UNLESS_LISTED :
6725 NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED);
6726
6727 acl = nla_nest_start(msg, NL80211_ATTR_MAC_ADDRS);
6728 if (acl == NULL)
6729 goto nla_put_failure;
6730
6731 for (i = 0; i < params->num_mac_acl; i++)
6732 NLA_PUT(msg, i + 1, ETH_ALEN, params->mac_acl[i].addr);
6733
6734 nla_nest_end(msg, acl);
6735
6736 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6737 msg = NULL;
6738 if (ret) {
6739 wpa_printf(MSG_DEBUG, "nl80211: Failed to set MAC ACL: %d (%s)",
6740 ret, strerror(-ret));
6741 }
6742
6743nla_put_failure:
6744 nlmsg_free(msg);
6745
6746 return ret;
6747}
6748
6749
19c3b566
JM		 6750static int wpa_driver_nl80211_set_ap(void *priv,
6751 struct wpa_driver_ap_params *params)
d2440ba0 6752{
a2e40bb6
FF		 6753 struct i802_bss *bss = priv;
6754 struct wpa_driver_nl80211_data *drv = bss->drv;
d2440ba0
JM		 6755 struct nl_msg *msg;
6756 u8 cmd = NL80211_CMD_NEW_BEACON;
6757 int ret;
b4fd6fab 6758 int beacon_set;
8b897f5a 6759 int ifindex = if_nametoindex(bss->ifname);
b11d1d64
JM		 6760 int num_suites;
6761 u32 suites[10];
6762 u32 ver;
b4fd6fab 6763
b4fd6fab 6764 beacon_set = bss->beacon_set;
d2440ba0
JM		 6765
6766 msg = nlmsg_alloc();
6767 if (!msg)
6768 return -ENOMEM;
6769
6770 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)",
b4fd6fab
JM		 6771 beacon_set);
6772 if (beacon_set)
d2440ba0
JM		 6773 cmd = NL80211_CMD_SET_BEACON;
6774
9fb04070 6775 nl80211_cmd(drv, msg, 0, cmd);
b92e08fc
JM		 6776 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon head",
6777 params->head, params->head_len);
19c3b566 6778 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head);
b92e08fc
JM		 6779 wpa_hexdump(MSG_DEBUG, "nl80211: Beacon tail",
6780 params->tail, params->tail_len);
19c3b566 6781 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail);
b92e08fc 6782 wpa_printf(MSG_DEBUG, "nl80211: ifindex=%d", ifindex);
b4fd6fab 6783 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
b92e08fc 6784 wpa_printf(MSG_DEBUG, "nl80211: beacon_int=%d", params->beacon_int);
19c3b566 6785 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int);
b92e08fc 6786 wpa_printf(MSG_DEBUG, "nl80211: dtim_period=%d", params->dtim_period);
19c3b566 6787 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period);
b92e08fc
JM		 6788 wpa_hexdump_ascii(MSG_DEBUG, "nl80211: ssid",
6789 params->ssid, params->ssid_len);
ccb941e6
JM		 6790 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
6791 params->ssid);
b92e08fc
JM		 6792 if (params->proberesp && params->proberesp_len) {
6793 wpa_hexdump(MSG_DEBUG, "nl80211: proberesp (offload)",
6794 params->proberesp, params->proberesp_len);
5ed33546
AN		 6795 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len,
6796 params->proberesp);
b92e08fc 6797 }
97a7a0b5
JM		 6798 switch (params->hide_ssid) {
6799 case NO_SSID_HIDING:
b92e08fc 6800 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID not in use");
97a7a0b5
JM		 6801 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
6802 NL80211_HIDDEN_SSID_NOT_IN_USE);
6803 break;
6804 case HIDDEN_SSID_ZERO_LEN:
b92e08fc 6805 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero len");
97a7a0b5
JM		 6806 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
6807 NL80211_HIDDEN_SSID_ZERO_LEN);
6808 break;
6809 case HIDDEN_SSID_ZERO_CONTENTS:
b92e08fc 6810 wpa_printf(MSG_DEBUG, "nl80211: hidden SSID zero contents");
97a7a0b5
JM		 6811 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
6812 NL80211_HIDDEN_SSID_ZERO_CONTENTS);
6813 break;
6814 }
b92e08fc 6815 wpa_printf(MSG_DEBUG, "nl80211: privacy=%d", params->privacy);
b11d1d64
JM		 6816 if (params->privacy)
6817 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
b92e08fc 6818 wpa_printf(MSG_DEBUG, "nl80211: auth_algs=0x%x", params->auth_algs);
b11d1d64
JM		 6819 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) ==
6820 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) {
6821 /* Leave out the attribute */
6822 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED)
6823 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE,
6824 NL80211_AUTHTYPE_SHARED_KEY);
6825 else
6826 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE,
6827 NL80211_AUTHTYPE_OPEN_SYSTEM);
6828
b92e08fc 6829 wpa_printf(MSG_DEBUG, "nl80211: wpa_version=0x%x", params->wpa_version);
b11d1d64
JM		 6830 ver = 0;
6831 if (params->wpa_version & WPA_PROTO_WPA)
6832 ver |= NL80211_WPA_VERSION_1;
6833 if (params->wpa_version & WPA_PROTO_RSN)
6834 ver |= NL80211_WPA_VERSION_2;
6835 if (ver)
6836 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
6837
b92e08fc
JM		 6838 wpa_printf(MSG_DEBUG, "nl80211: key_mgmt_suites=0x%x",
6839 params->key_mgmt_suites);
b11d1d64
JM		 6840 num_suites = 0;
6841 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X)
6842 suites[num_suites++] = WLAN_AKM_SUITE_8021X;
6843 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK)
6844 suites[num_suites++] = WLAN_AKM_SUITE_PSK;
6845 if (num_suites) {
6846 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES,
6847 num_suites * sizeof(u32), suites);
6848 }
6849
9f12614b
JB		 6850 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X &&
6851 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40))
6852 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT);
6853
b92e08fc
JM		 6854 wpa_printf(MSG_DEBUG, "nl80211: pairwise_ciphers=0x%x",
6855 params->pairwise_ciphers);
b11d1d64 6856 num_suites = 0;
30675c34
JM		 6857 if (params->pairwise_ciphers & WPA_CIPHER_CCMP_256)
6858 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP_256;
6859 if (params->pairwise_ciphers & WPA_CIPHER_GCMP_256)
6860 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP_256;
b11d1d64
JM		 6861 if (params->pairwise_ciphers & WPA_CIPHER_CCMP)
6862 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP;
eb7719ff
JM		 6863 if (params->pairwise_ciphers & WPA_CIPHER_GCMP)
6864 suites[num_suites++] = WLAN_CIPHER_SUITE_GCMP;
b11d1d64
JM		 6865 if (params->pairwise_ciphers & WPA_CIPHER_TKIP)
6866 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP;
6867 if (params->pairwise_ciphers & WPA_CIPHER_WEP104)
6868 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104;
6869 if (params->pairwise_ciphers & WPA_CIPHER_WEP40)
6870 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40;
6871 if (num_suites) {
6872 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE,
6873 num_suites * sizeof(u32), suites);
6874 }
6875
b92e08fc
JM		 6876 wpa_printf(MSG_DEBUG, "nl80211: group_cipher=0x%x",
6877 params->group_cipher);
b11d1d64 6878 switch (params->group_cipher) {
30675c34
JM		 6879 case WPA_CIPHER_CCMP_256:
6880 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
6881 WLAN_CIPHER_SUITE_CCMP_256);
6882 break;
6883 case WPA_CIPHER_GCMP_256:
6884 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
6885 WLAN_CIPHER_SUITE_GCMP_256);
6886 break;
b11d1d64
JM		 6887 case WPA_CIPHER_CCMP:
6888 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
6889 WLAN_CIPHER_SUITE_CCMP);
6890 break;
eb7719ff
JM		 6891 case WPA_CIPHER_GCMP:
6892 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
6893 WLAN_CIPHER_SUITE_GCMP);
6894 break;
b11d1d64
JM		 6895 case WPA_CIPHER_TKIP:
6896 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
6897 WLAN_CIPHER_SUITE_TKIP);
6898 break;
6899 case WPA_CIPHER_WEP104:
6900 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
6901 WLAN_CIPHER_SUITE_WEP104);
6902 break;
6903 case WPA_CIPHER_WEP40:
6904 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
6905 WLAN_CIPHER_SUITE_WEP40);
6906 break;
6907 }
d2440ba0 6908
fb91db56 6909 if (params->beacon_ies) {
b92e08fc
JM		 6910 wpa_hexdump_buf(MSG_DEBUG, "nl80211: beacon_ies",
6911 params->beacon_ies);
fb91db56
JM		 6912 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies),
6913 wpabuf_head(params->beacon_ies));
6914 }
6915 if (params->proberesp_ies) {
b92e08fc
JM		 6916 wpa_hexdump_buf(MSG_DEBUG, "nl80211: proberesp_ies",
6917 params->proberesp_ies);
fb91db56
JM		 6918 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP,
6919 wpabuf_len(params->proberesp_ies),
6920 wpabuf_head(params->proberesp_ies));
6921 }
6922 if (params->assocresp_ies) {
b92e08fc
JM		 6923 wpa_hexdump_buf(MSG_DEBUG, "nl80211: assocresp_ies",
6924 params->assocresp_ies);
fb91db56
JM		 6925 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP,
6926 wpabuf_len(params->assocresp_ies),
6927 wpabuf_head(params->assocresp_ies));
6928 }
6929
a0133ee1 6930 if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) {
b92e08fc
JM		 6931 wpa_printf(MSG_DEBUG, "nl80211: ap_max_inactivity=%d",
6932 params->ap_max_inactivity);
a0133ee1
VT		 6933 NLA_PUT_U16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT,
6934 params->ap_max_inactivity);
6935 }
6936
d2440ba0
JM		 6937 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6938 if (ret) {
6939 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)",
6940 ret, strerror(-ret));
b4fd6fab 6941 } else {
b4fd6fab 6942 bss->beacon_set = 1;
31357268 6943 nl80211_set_bss(bss, params->cts_protect, params->preamble,
d03e8d11 6944 params->short_slot_time, params->ht_opmode,
e5693c47 6945 params->isolate, params->basic_rates);
b4fd6fab 6946 }
d2440ba0
JM		 6947 return ret;
6948 nla_put_failure:
5883168a 6949 nlmsg_free(msg);
d2440ba0
JM		 6950 return -ENOBUFS;
6951}
6952
6953
1c4ffa87
AO		 6954static int nl80211_put_freq_params(struct nl_msg *msg,
6955 struct hostapd_freq_params *freq)
1581b38b 6956{
89b800d7
JB		 6957 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq);
6958 if (freq->vht_enabled) {
6959 switch (freq->bandwidth) {
6960 case 20:
6961 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
6962 NL80211_CHAN_WIDTH_20);
6963 break;
6964 case 40:
6965 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
6966 NL80211_CHAN_WIDTH_40);
6967 break;
6968 case 80:
6969 if (freq->center_freq2)
6970 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
6971 NL80211_CHAN_WIDTH_80P80);
6972 else
6973 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
6974 NL80211_CHAN_WIDTH_80);
6975 break;
6976 case 160:
6977 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
6978 NL80211_CHAN_WIDTH_160);
6979 break;
6980 default:
1c4ffa87 6981 return -EINVAL;
89b800d7
JB		 6982 }
6983 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1);
6984 if (freq->center_freq2)
6985 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2,
6986 freq->center_freq2);
6987 } else if (freq->ht_enabled) {
6988 switch (freq->sec_channel_offset) {
f019981a
JM		 6989 case -1:
6990 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
6991 NL80211_CHAN_HT40MINUS);
6992 break;
6993 case 1:
6994 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
6995 NL80211_CHAN_HT40PLUS);
6996 break;
6997 default:
6998 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
6999 NL80211_CHAN_HT20);
7000 break;
7001 }
7002 }
1c4ffa87
AO		 7003 return 0;
7004
7005nla_put_failure:
7006 return -ENOBUFS;
7007}
7008
7009
7010static int wpa_driver_nl80211_set_freq(struct i802_bss *bss,
7011 struct hostapd_freq_params *freq)
7012{
7013 struct wpa_driver_nl80211_data *drv = bss->drv;
7014 struct nl_msg *msg;
7015 int ret;
7016
7017 wpa_printf(MSG_DEBUG,
7018 "nl80211: Set freq %d (ht_enabled=%d, vht_enabled=%d, bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)",
7019 freq->freq, freq->ht_enabled, freq->vht_enabled,
7020 freq->bandwidth, freq->center_freq1, freq->center_freq2);
7021 msg = nlmsg_alloc();
7022 if (!msg)
7023 return -1;
7024
7025 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
7026
7027 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
7028 if (nl80211_put_freq_params(msg, freq) < 0)
7029 goto nla_put_failure;
1581b38b 7030
d2440ba0 7031 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5883168a 7032 msg = NULL;
e4fb2167 7033 if (ret == 0) {
89b800d7 7034 bss->freq = freq->freq;
1581b38b 7035 return 0;
e4fb2167 7036 }
f019981a 7037 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): "
89b800d7 7038 "%d (%s)", freq->freq, ret, strerror(-ret));
1581b38b 7039nla_put_failure:
5883168a 7040 nlmsg_free(msg);
1581b38b
JM		 7041 return -1;
7042}
7043
0f4e8b4f 7044
95ab6063
AN		 7045static u32 sta_flags_nl80211(int flags)
7046{
7047 u32 f = 0;
7048
7049 if (flags & WPA_STA_AUTHORIZED)
7050 f |= BIT(NL80211_STA_FLAG_AUTHORIZED);
7051 if (flags & WPA_STA_WMM)
7052 f |= BIT(NL80211_STA_FLAG_WME);
7053 if (flags & WPA_STA_SHORT_PREAMBLE)
7054 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
7055 if (flags & WPA_STA_MFP)
7056 f |= BIT(NL80211_STA_FLAG_MFP);
45b722f1
AN		 7057 if (flags & WPA_STA_TDLS_PEER)
7058 f |= BIT(NL80211_STA_FLAG_TDLS_PEER);
95ab6063
AN		 7059
7060 return f;
7061}
7062
7063
62847751 7064static int wpa_driver_nl80211_sta_add(void *priv,
0f4e8b4f
JM		 7065 struct hostapd_sta_add_params *params)
7066{
a2e40bb6
FF		 7067 struct i802_bss *bss = priv;
7068 struct wpa_driver_nl80211_data *drv = bss->drv;
8970bae8 7069 struct nl_msg *msg;
95ab6063 7070 struct nl80211_sta_flag_update upd;
0f4e8b4f
JM		 7071 int ret = -ENOBUFS;
7072
45b722f1
AN		 7073 if ((params->flags & WPA_STA_TDLS_PEER) &&
7074 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
7075 return -EOPNOTSUPP;
7076
0f4e8b4f
JM		 7077 msg = nlmsg_alloc();
7078 if (!msg)
7079 return -ENOMEM;
7080
e4dea253
JM		 7081 wpa_printf(MSG_DEBUG, "nl80211: %s STA " MACSTR,
7082 params->set ? "Set" : "Add", MAC2STR(params->addr));
45b722f1
AN		 7083 nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION :
7084 NL80211_CMD_NEW_STATION);
0f4e8b4f 7085
62847751 7086 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
0f4e8b4f 7087 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr);
0f4e8b4f
JM		 7088 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len,
7089 params->supp_rates);
e4dea253
JM		 7090 wpa_hexdump(MSG_DEBUG, " * supported rates", params->supp_rates,
7091 params->supp_rates_len);
45b722f1 7092 if (!params->set) {
f11b72c3
JM		 7093 if (params->aid) {
7094 wpa_printf(MSG_DEBUG, " * aid=%u", params->aid);
7095 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid);
7096 } else {
7097 /*
7098 * cfg80211 validates that AID is non-zero, so we have
7099 * to make this a non-zero value for the TDLS case where
7100 * a dummy STA entry is used for now.
7101 */
7102 wpa_printf(MSG_DEBUG, " * aid=1 (TDLS workaround)");
7103 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, 1);
7104 }
e4dea253
JM		 7105 wpa_printf(MSG_DEBUG, " * listen_interval=%u",
7106 params->listen_interval);
45b722f1
AN		 7107 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL,
7108 params->listen_interval);
e112764e
JM		 7109 } else if (params->aid && (params->flags & WPA_STA_TDLS_PEER)) {
7110 wpa_printf(MSG_DEBUG, " * peer_aid=%u", params->aid);
7111 NLA_PUT_U16(msg, NL80211_ATTR_PEER_AID, params->aid);
45b722f1 7112 }
0f4e8b4f 7113 if (params->ht_capabilities) {
e4dea253
JM		 7114 wpa_hexdump(MSG_DEBUG, " * ht_capabilities",
7115 (u8 *) params->ht_capabilities,
7116 sizeof(*params->ht_capabilities));
0f4e8b4f 7117 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY,
fc4e2d95
JM		 7118 sizeof(*params->ht_capabilities),
7119 params->ht_capabilities);
0f4e8b4f 7120 }
0f4e8b4f 7121
05a8d422 7122 if (params->vht_capabilities) {
e4dea253
JM		 7123 wpa_hexdump(MSG_DEBUG, " * vht_capabilities",
7124 (u8 *) params->vht_capabilities,
7125 sizeof(*params->vht_capabilities));
05a8d422
JB		 7126 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY,
7127 sizeof(*params->vht_capabilities),
7128 params->vht_capabilities);
7129 }
7130
122d16f2
SD		 7131 wpa_printf(MSG_DEBUG, " * capability=0x%x", params->capability);
7132 NLA_PUT_U16(msg, NL80211_ATTR_STA_CAPABILITY, params->capability);
7133
7134 if (params->ext_capab) {
7135 wpa_hexdump(MSG_DEBUG, " * ext_capab",
7136 params->ext_capab, params->ext_capab_len);
7137 NLA_PUT(msg, NL80211_ATTR_STA_EXT_CAPABILITY,
7138 params->ext_capab_len, params->ext_capab);
7139 }
7140
95ab6063
AN		 7141 os_memset(&upd, 0, sizeof(upd));
7142 upd.mask = sta_flags_nl80211(params->flags);
7143 upd.set = upd.mask;
e4dea253
JM		 7144 wpa_printf(MSG_DEBUG, " * flags set=0x%x mask=0x%x",
7145 upd.set, upd.mask);
95ab6063
AN		 7146 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
7147
774bfa62 7148 if (params->flags & WPA_STA_WMM) {
8970bae8
JB		 7149 struct nlattr *wme = nla_nest_start(msg, NL80211_ATTR_STA_WME);
7150
774bfa62
EP		 7151 if (!wme)
7152 goto nla_put_failure;
7153
e4dea253 7154 wpa_printf(MSG_DEBUG, " * qosinfo=0x%x", params->qosinfo);
8970bae8 7155 NLA_PUT_U8(msg, NL80211_STA_WME_UAPSD_QUEUES,
5d061637 7156 params->qosinfo & WMM_QOSINFO_STA_AC_MASK);
8970bae8 7157 NLA_PUT_U8(msg, NL80211_STA_WME_MAX_SP,
bdaf1748 7158 (params->qosinfo >> WMM_QOSINFO_STA_SP_SHIFT) &
5d061637 7159 WMM_QOSINFO_STA_SP_MASK);
8970bae8 7160 nla_nest_end(msg, wme);
774bfa62
EP		 7161 }
7162
0f4e8b4f 7163 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5883168a 7164 msg = NULL;
0f4e8b4f 7165 if (ret)
45b722f1
AN		 7166 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION "
7167 "result: %d (%s)", params->set ? "SET" : "NEW", ret,
7168 strerror(-ret));
0f4e8b4f
JM		 7169 if (ret == -EEXIST)
7170 ret = 0;
7171 nla_put_failure:
5883168a 7172 nlmsg_free(msg);
0f4e8b4f
JM		 7173 return ret;
7174}
7175
7176
9ebce9c5 7177static int wpa_driver_nl80211_sta_remove(struct i802_bss *bss, const u8 *addr)
0f4e8b4f 7178{
a2e40bb6 7179 struct wpa_driver_nl80211_data *drv = bss->drv;
0f4e8b4f
JM		 7180 struct nl_msg *msg;
7181 int ret;
7182
7183 msg = nlmsg_alloc();
7184 if (!msg)
7185 return -ENOMEM;
7186
9fb04070 7187 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION);
0f4e8b4f
JM		 7188
7189 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 7190 if_nametoindex(bss->ifname));
0f4e8b4f
JM		 7191 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7192
7193 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
83e7bb0e
JM		 7194 wpa_printf(MSG_DEBUG, "nl80211: sta_remove -> DEL_STATION %s " MACSTR
7195 " --> %d (%s)",
7196 bss->ifname, MAC2STR(addr), ret, strerror(-ret));
0f4e8b4f
JM		 7197 if (ret == -ENOENT)
7198 return 0;
7199 return ret;
7200 nla_put_failure:
5883168a 7201 nlmsg_free(msg);
0f4e8b4f
JM		 7202 return -ENOBUFS;
7203}
7204
1581b38b 7205
0915d02c
JM		 7206static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
7207 int ifidx)
7208{
7209 struct nl_msg *msg;
7210
c6e8e8e4
JM		 7211 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx);
7212
2135f224
JM		 7213 /* stop listening for EAPOL on this interface */
7214 del_ifidx(drv, ifidx);
2135f224 7215
0915d02c
JM		 7216 msg = nlmsg_alloc();
7217 if (!msg)
7218 goto nla_put_failure;
7219
9fb04070 7220 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE);
0915d02c
JM		 7221 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx);
7222
7223 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
7224 return;
5883168a 7225 msg = NULL;
0915d02c 7226 nla_put_failure:
5883168a 7227 nlmsg_free(msg);
e748062b 7228 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx);
0915d02c
JM		 7229}
7230
7231
a1922f93
JM		 7232static const char * nl80211_iftype_str(enum nl80211_iftype mode)
7233{
7234 switch (mode) {
7235 case NL80211_IFTYPE_ADHOC:
7236 return "ADHOC";
7237 case NL80211_IFTYPE_STATION:
7238 return "STATION";
7239 case NL80211_IFTYPE_AP:
7240 return "AP";
1045ec36
JM		 7241 case NL80211_IFTYPE_AP_VLAN:
7242 return "AP_VLAN";
7243 case NL80211_IFTYPE_WDS:
7244 return "WDS";
a1922f93
JM		 7245 case NL80211_IFTYPE_MONITOR:
7246 return "MONITOR";
1045ec36
JM		 7247 case NL80211_IFTYPE_MESH_POINT:
7248 return "MESH_POINT";
a1922f93
JM		 7249 case NL80211_IFTYPE_P2P_CLIENT:
7250 return "P2P_CLIENT";
7251 case NL80211_IFTYPE_P2P_GO:
7252 return "P2P_GO";
7aad838c
NS		 7253 case NL80211_IFTYPE_P2P_DEVICE:
7254 return "P2P_DEVICE";
a1922f93
JM		 7255 default:
7256 return "unknown";
7257 }
7258}
7259
7260
a35187e7
KH		 7261static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv,
7262 const char *ifname,
7263 enum nl80211_iftype iftype,
d6dcfcda
DS		 7264 const u8 *addr, int wds,
7265 int (*handler)(struct nl_msg *, void *),
7266 void *arg)
0915d02c 7267{
8970bae8 7268 struct nl_msg *msg;
0915d02c
JM		 7269 int ifidx;
7270 int ret = -ENOBUFS;
7271
a1922f93
JM		 7272 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)",
7273 iftype, nl80211_iftype_str(iftype));
7274
0915d02c
JM		 7275 msg = nlmsg_alloc();
7276 if (!msg)
7277 return -1;
7278
9fb04070 7279 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE);
834ee56f 7280 if (nl80211_set_iface_id(msg, drv->first_bss) < 0)
fa93de40 7281 goto nla_put_failure;
0915d02c
JM		 7282 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname);
7283 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype);
7284
7285 if (iftype == NL80211_IFTYPE_MONITOR) {
8970bae8 7286 struct nlattr *flags;
0915d02c 7287
8970bae8 7288 flags = nla_nest_start(msg, NL80211_ATTR_MNTR_FLAGS);
0915d02c
JM		 7289 if (!flags)
7290 goto nla_put_failure;
7291
8970bae8 7292 NLA_PUT_FLAG(msg, NL80211_MNTR_FLAG_COOK_FRAMES);
0915d02c 7293
8970bae8 7294 nla_nest_end(msg, flags);
fbbfcbac
FF		 7295 } else if (wds) {
7296 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds);
0915d02c
JM		 7297 }
7298
d6dcfcda 7299 ret = send_and_recv_msgs(drv, msg, handler, arg);
5883168a 7300 msg = NULL;
0915d02c
JM		 7301 if (ret) {
7302 nla_put_failure:
5883168a 7303 nlmsg_free(msg);
a35187e7
KH		 7304 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)",
7305 ifname, ret, strerror(-ret));
0915d02c
JM		 7306 return ret;
7307 }
7308
f632e483 7309 if (iftype == NL80211_IFTYPE_P2P_DEVICE)
6bae92e0 7310 return 0;
6bae92e0 7311
0915d02c 7312 ifidx = if_nametoindex(ifname);
c6e8e8e4
JM		 7313 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d",
7314 ifname, ifidx);
0915d02c
JM		 7315
7316 if (ifidx <= 0)
7317 return -1;
7318
2135f224
JM		 7319 /* start listening for EAPOL on this interface */
7320 add_ifidx(drv, ifidx);
7321
7bfc47c3 7322 if (addr && iftype != NL80211_IFTYPE_MONITOR &&
c81eff1a 7323 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) {
41d931ee
JM		 7324 nl80211_remove_iface(drv, ifidx);
7325 return -1;
2135f224 7326 }
2135f224 7327
0915d02c
JM		 7328 return ifidx;
7329}
22a7c9d7
JM		 7330
7331
a35187e7
KH		 7332static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
7333 const char *ifname, enum nl80211_iftype iftype,
d6dcfcda
DS		 7334 const u8 *addr, int wds,
7335 int (*handler)(struct nl_msg *, void *),
2aec4f3c 7336 void *arg, int use_existing)
a35187e7
KH		 7337{
7338 int ret;
7339
d6dcfcda
DS		 7340 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds, handler,
7341 arg);
a35187e7 7342
ffbf1eaa 7343 /* if error occurred and interface exists already */
a35187e7 7344 if (ret == -ENFILE && if_nametoindex(ifname)) {
2aec4f3c
JM		 7345 if (use_existing) {
7346 wpa_printf(MSG_DEBUG, "nl80211: Continue using existing interface %s",
7347 ifname);
7348 return -ENFILE;
7349 }
a35187e7
KH		 7350 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname);
7351
7352 /* Try to remove the interface that was already there. */
7353 nl80211_remove_iface(drv, if_nametoindex(ifname));
7354
7355 /* Try to create the interface again */
fbbfcbac 7356 ret = nl80211_create_iface_once(drv, ifname, iftype, addr,
d6dcfcda 7357 wds, handler, arg);
a35187e7
KH		 7358 }
7359
6a71413e 7360 if (ret >= 0 && is_p2p_net_interface(iftype))
4e5cb1a3
JM		 7361 nl80211_disable_11b_rates(drv, ret, 1);
7362
a35187e7
KH		 7363 return ret;
7364}
0915d02c 7365
2135f224 7366
0915d02c
JM		 7367static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok)
7368{
7369 struct ieee80211_hdr *hdr;
f8b1f695
JM		 7370 u16 fc;
7371 union wpa_event_data event;
0915d02c
JM		 7372
7373 hdr = (struct ieee80211_hdr *) buf;
7374 fc = le_to_host16(hdr->frame_control);
7375
f8b1f695
JM		 7376 os_memset(&event, 0, sizeof(event));
7377 event.tx_status.type = WLAN_FC_GET_TYPE(fc);
7378 event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
7379 event.tx_status.dst = hdr->addr1;
7380 event.tx_status.data = buf;
7381 event.tx_status.data_len = len;
7382 event.tx_status.ack = ok;
7383 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event);
0915d02c
JM		 7384}
7385
7386
4b9841d3 7387static void from_unknown_sta(struct wpa_driver_nl80211_data *drv,
0d9fc3d8 7388 u8 *buf, size_t len)
0915d02c 7389{
9b90955e
JB		 7390 struct ieee80211_hdr *hdr = (void *)buf;
7391 u16 fc;
f8b1f695 7392 union wpa_event_data event;
9b90955e
JB		 7393
7394 if (len < sizeof(*hdr))
7395 return;
7396
7397 fc = le_to_host16(hdr->frame_control);
7398
f8b1f695 7399 os_memset(&event, 0, sizeof(event));
9b90955e
JB		 7400 event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len);
7401 event.rx_from_unknown.addr = hdr->addr2;
7402 event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) ==
7403 (WLAN_FC_FROMDS | WLAN_FC_TODS);
f8b1f695 7404 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event);
4b9841d3 7405}
0915d02c 7406
4b9841d3
JM		 7407
7408static void handle_frame(struct wpa_driver_nl80211_data *drv,
2a8b7416 7409 u8 *buf, size_t len, int datarate, int ssi_signal)
4b9841d3
JM		 7410{
7411 struct ieee80211_hdr *hdr;
f8b1f695
JM		 7412 u16 fc;
7413 union wpa_event_data event;
0915d02c
JM		 7414
7415 hdr = (struct ieee80211_hdr *) buf;
7416 fc = le_to_host16(hdr->frame_control);
0915d02c 7417
4b9841d3 7418 switch (WLAN_FC_GET_TYPE(fc)) {
0915d02c 7419 case WLAN_FC_TYPE_MGMT:
f8b1f695
JM		 7420 os_memset(&event, 0, sizeof(event));
7421 event.rx_mgmt.frame = buf;
7422 event.rx_mgmt.frame_len = len;
2a8b7416
JM		 7423 event.rx_mgmt.datarate = datarate;
7424 event.rx_mgmt.ssi_signal = ssi_signal;
f8b1f695 7425 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
0915d02c
JM		 7426 break;
7427 case WLAN_FC_TYPE_CTRL:
7428 /* can only get here with PS-Poll frames */
7429 wpa_printf(MSG_DEBUG, "CTRL");
0d9fc3d8 7430 from_unknown_sta(drv, buf, len);
0915d02c
JM		 7431 break;
7432 case WLAN_FC_TYPE_DATA:
0d9fc3d8 7433 from_unknown_sta(drv, buf, len);
0915d02c
JM		 7434 break;
7435 }
7436}
7437
7438
7439static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx)
7440{
7441 struct wpa_driver_nl80211_data *drv = eloop_ctx;
7442 int len;
7443 unsigned char buf[3000];
7444 struct ieee80211_radiotap_iterator iter;
7445 int ret;
2a8b7416 7446 int datarate = 0, ssi_signal = 0;
4b9841d3 7447 int injected = 0, failed = 0, rxflags = 0;
0915d02c
JM		 7448
7449 len = recv(sock, buf, sizeof(buf), 0);
7450 if (len < 0) {
7ac3616d
JM		 7451 wpa_printf(MSG_ERROR, "nl80211: Monitor socket recv failed: %s",
7452 strerror(errno));
0915d02c
JM		 7453 return;
7454 }
7455
7456 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) {
7ac3616d 7457 wpa_printf(MSG_INFO, "nl80211: received invalid radiotap frame");
0915d02c
JM		 7458 return;
7459 }
7460
0915d02c
JM		 7461 while (1) {
7462 ret = ieee80211_radiotap_iterator_next(&iter);
7463 if (ret == -ENOENT)
7464 break;
7465 if (ret) {
7ac3616d
JM		 7466 wpa_printf(MSG_INFO, "nl80211: received invalid radiotap frame (%d)",
7467 ret);
0915d02c
JM		 7468 return;
7469 }
7470 switch (iter.this_arg_index) {
7471 case IEEE80211_RADIOTAP_FLAGS:
7472 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS)
7473 len -= 4;
7474 break;
7475 case IEEE80211_RADIOTAP_RX_FLAGS:
7476 rxflags = 1;
7477 break;
7478 case IEEE80211_RADIOTAP_TX_FLAGS:
7479 injected = 1;
7480 failed = le_to_host16((*(uint16_t *) iter.this_arg)) &
7481 IEEE80211_RADIOTAP_F_TX_FAIL;
7482 break;
7483 case IEEE80211_RADIOTAP_DATA_RETRIES:
7484 break;
7485 case IEEE80211_RADIOTAP_CHANNEL:
2a8b7416 7486 /* TODO: convert from freq/flags to channel number */
0915d02c
JM		 7487 break;
7488 case IEEE80211_RADIOTAP_RATE:
2a8b7416 7489 datarate = *iter.this_arg * 5;
0915d02c 7490 break;
baf513d6
JB		 7491 case IEEE80211_RADIOTAP_DBM_ANTSIGNAL:
7492 ssi_signal = (s8) *iter.this_arg;
0915d02c
JM		 7493 break;
7494 }
7495 }
7496
7497 if (rxflags && injected)
7498 return;
7499
7500 if (!injected)
4b9841d3 7501 handle_frame(drv, buf + iter.max_length,
2a8b7416 7502 len - iter.max_length, datarate, ssi_signal);
0915d02c 7503 else
4b9841d3
JM		 7504 handle_tx_callback(drv->ctx, buf + iter.max_length,
7505 len - iter.max_length, !failed);
0915d02c
JM		 7506}
7507
7508
7509/*
7510 * we post-process the filter code later and rewrite
7511 * this to the offset to the last instruction
7512 */
7513#define PASS 0xFF
7514#define FAIL 0xFE
7515
7516static struct sock_filter msock_filter_insns[] = {
7517 /*
7518 * do a little-endian load of the radiotap length field
7519 */
7520 /* load lower byte into A */
7521 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2),
7522 /* put it into X (== index register) */
7523 BPF_STMT(BPF_MISC| BPF_TAX, 0),
7524 /* load upper byte into A */
7525 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3),
7526 /* left-shift it by 8 */
7527 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8),
7528 /* or with X */
7529 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0),
7530 /* put result into X */
7531 BPF_STMT(BPF_MISC| BPF_TAX, 0),
7532
7533 /*
7534 * Allow management frames through, this also gives us those
7535 * management frames that we sent ourselves with status
7536 */
7537 /* load the lower byte of the IEEE 802.11 frame control field */
7538 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
7539 /* mask off frame type and version */
7540 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF),
7541 /* accept frame if it's both 0, fall through otherwise */
7542 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0),
7543
7544 /*
7545 * TODO: add a bit to radiotap RX flags that indicates
7546 * that the sending station is not associated, then
7547 * add a filter here that filters on our DA and that flag
7548 * to allow us to deauth frames to that bad station.
7549 *
65ae1afd 7550 * For now allow all To DS data frames through.
0915d02c 7551 */
65ae1afd
HS		 7552 /* load the IEEE 802.11 frame control field */
7553 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0),
7554 /* mask off frame type, version and DS status */
7555 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03),
7556 /* accept frame if version 0, type 2 and To DS, fall through otherwise
7557 */
7558 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0),
0915d02c
JM		 7559
7560#if 0
7561 /*
fbbfcbac 7562 * drop non-data frames
0915d02c
JM		 7563 */
7564 /* load the lower byte of the frame control field */
7565 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
7566 /* mask off QoS bit */
7567 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c),
7568 /* drop non-data frames */
7569 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL),
fbbfcbac 7570#endif
0915d02c 7571 /* load the upper byte of the frame control field */
fbbfcbac 7572 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1),
0915d02c
JM		 7573 /* mask off toDS/fromDS */
7574 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03),
fbbfcbac
FF		 7575 /* accept WDS frames */
7576 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0),
0915d02c
JM		 7577
7578 /*
7579 * add header length to index
7580 */
7581 /* load the lower byte of the frame control field */
7582 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
7583 /* mask off QoS bit */
7584 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80),
7585 /* right shift it by 6 to give 0 or 2 */
7586 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6),
7587 /* add data frame header length */
7588 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24),
7589 /* add index, was start of 802.11 header */
7590 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0),
7591 /* move to index, now start of LL header */
7592 BPF_STMT(BPF_MISC | BPF_TAX, 0),
7593
7594 /*
7595 * Accept empty data frames, we use those for
7596 * polling activity.
7597 */
7598 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0),
7599 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0),
7600
7601 /*
7602 * Accept EAPOL frames
7603 */
7604 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0),
7605 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL),
7606 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4),
7607 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL),
7608
7609 /* keep these last two statements or change the code below */
7610 /* return 0 == "DROP" */
7611 BPF_STMT(BPF_RET | BPF_K, 0),
7612 /* return ~0 == "keep all" */
7613 BPF_STMT(BPF_RET | BPF_K, ~0),
7614};
7615
7616static struct sock_fprog msock_filter = {
e7ecab4a 7617 .len = ARRAY_SIZE(msock_filter_insns),
0915d02c
JM		 7618 .filter = msock_filter_insns,
7619};
7620
7621
7622static int add_monitor_filter(int s)
7623{
7624 int idx;
7625
7626 /* rewrite all PASS/FAIL jump offsets */
7627 for (idx = 0; idx < msock_filter.len; idx++) {
7628 struct sock_filter *insn = &msock_filter_insns[idx];
7629
7630 if (BPF_CLASS(insn->code) == BPF_JMP) {
7631 if (insn->code == (BPF_JMP|BPF_JA)) {
7632 if (insn->k == PASS)
7633 insn->k = msock_filter.len - idx - 2;
7634 else if (insn->k == FAIL)
7635 insn->k = msock_filter.len - idx - 3;
7636 }
7637
7638 if (insn->jt == PASS)
7639 insn->jt = msock_filter.len - idx - 2;
7640 else if (insn->jt == FAIL)
7641 insn->jt = msock_filter.len - idx - 3;
7642
7643 if (insn->jf == PASS)
7644 insn->jf = msock_filter.len - idx - 2;
7645 else if (insn->jf == FAIL)
7646 insn->jf = msock_filter.len - idx - 3;
7647 }
7648 }
7649
7650 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER,
7651 &msock_filter, sizeof(msock_filter))) {
7ac3616d
JM		 7652 wpa_printf(MSG_ERROR, "nl80211: setsockopt(SO_ATTACH_FILTER) failed: %s",
7653 strerror(errno));
0915d02c
JM		 7654 return -1;
7655 }
7656
7657 return 0;
7658}
7659
7660
460456f8
JM		 7661static void nl80211_remove_monitor_interface(
7662 struct wpa_driver_nl80211_data *drv)
7663{
748c0ac0
JM		 7664 if (drv->monitor_refcount > 0)
7665 drv->monitor_refcount--;
7666 wpa_printf(MSG_DEBUG, "nl80211: Remove monitor interface: refcount=%d",
7667 drv->monitor_refcount);
3fd1cefb
JB		 7668 if (drv->monitor_refcount > 0)
7669 return;
7670
460456f8
JM		 7671 if (drv->monitor_ifidx >= 0) {
7672 nl80211_remove_iface(drv, drv->monitor_ifidx);
7673 drv->monitor_ifidx = -1;
7674 }
504e905c
JM		 7675 if (drv->monitor_sock >= 0) {
7676 eloop_unregister_read_sock(drv->monitor_sock);
7677 close(drv->monitor_sock);
7678 drv->monitor_sock = -1;
7679 }
460456f8
JM		 7680}
7681
7682
0915d02c
JM		 7683static int
7684nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv)
7685{
7686 char buf[IFNAMSIZ];
7687 struct sockaddr_ll ll;
7688 int optval;
7689 socklen_t optlen;
0915d02c 7690
3fd1cefb
JB		 7691 if (drv->monitor_ifidx >= 0) {
7692 drv->monitor_refcount++;
748c0ac0
JM		 7693 wpa_printf(MSG_DEBUG, "nl80211: Re-use existing monitor interface: refcount=%d",
7694 drv->monitor_refcount);
3fd1cefb
JB		 7695 return 0;
7696 }
7697
834ee56f 7698 if (os_strncmp(drv->first_bss->ifname, "p2p-", 4) == 0) {
6758b167
JJ		 7699 /*
7700 * P2P interface name is of the format p2p-%s-%d. For monitor
7701 * interface name corresponding to P2P GO, replace "p2p-" with
7702 * "mon-" to retain the same interface name length and to
7703 * indicate that it is a monitor interface.
7704 */
834ee56f 7705 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss->ifname + 4);
6758b167
JJ		 7706 } else {
7707 /* Non-P2P interface with AP functionality. */
834ee56f 7708 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss->ifname);
6758b167
JJ		 7709 }
7710
0915d02c
JM		 7711 buf[IFNAMSIZ - 1] = '\0';
7712
7713 drv->monitor_ifidx =
fbbfcbac 7714 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL,
2aec4f3c 7715 0, NULL, NULL, 0);
0915d02c 7716
866af8b6 7717 if (drv->monitor_ifidx == -EOPNOTSUPP) {
61cbe2ff
JB		 7718 /*
7719 * This is backward compatibility for a few versions of
7720 * the kernel only that didn't advertise the right
7721 * attributes for the only driver that then supported
7722 * AP mode w/o monitor -- ath6kl.
7723 */
866af8b6
JM		 7724 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support "
7725 "monitor interface type - try to run without it");
61cbe2ff 7726 drv->device_ap_sme = 1;
866af8b6
JM		 7727 }
7728
0915d02c
JM		 7729 if (drv->monitor_ifidx < 0)
7730 return -1;
7731
c81eff1a 7732 if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1))
0915d02c 7733 goto error;
0915d02c
JM		 7734
7735 memset(&ll, 0, sizeof(ll));
7736 ll.sll_family = AF_PACKET;
7737 ll.sll_ifindex = drv->monitor_ifidx;
7738 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
7739 if (drv->monitor_sock < 0) {
7ac3616d
JM		 7740 wpa_printf(MSG_ERROR, "nl80211: socket[PF_PACKET,SOCK_RAW] failed: %s",
7741 strerror(errno));
0915d02c
JM		 7742 goto error;
7743 }
7744
7745 if (add_monitor_filter(drv->monitor_sock)) {
7746 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor "
7747 "interface; do filtering in user space");
7748 /* This works, but will cost in performance. */
7749 }
7750
2135f224 7751 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) {
7ac3616d
JM		 7752 wpa_printf(MSG_ERROR, "nl80211: monitor socket bind failed: %s",
7753 strerror(errno));
0915d02c
JM		 7754 goto error;
7755 }
7756
7757 optlen = sizeof(optval);
7758 optval = 20;
7759 if (setsockopt
7760 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) {
7ac3616d
JM		 7761 wpa_printf(MSG_ERROR, "nl80211: Failed to set socket priority: %s",
7762 strerror(errno));
0915d02c
JM		 7763 goto error;
7764 }
7765
7766 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read,
7767 drv, NULL)) {
7ac3616d 7768 wpa_printf(MSG_INFO, "nl80211: Could not register monitor read socket");
0915d02c
JM		 7769 goto error;
7770 }
7771
748c0ac0 7772 drv->monitor_refcount++;
0915d02c
JM		 7773 return 0;
7774 error:
460456f8 7775 nl80211_remove_monitor_interface(drv);
0915d02c
JM		 7776 return -1;
7777}
7778
db149ac9 7779
3fd1cefb
JB		 7780static int nl80211_setup_ap(struct i802_bss *bss)
7781{
7782 struct wpa_driver_nl80211_data *drv = bss->drv;
7783
748c0ac0
JM		 7784 wpa_printf(MSG_DEBUG, "nl80211: Setup AP(%s) - device_ap_sme=%d use_monitor=%d",
7785 bss->ifname, drv->device_ap_sme, drv->use_monitor);
36488c05 7786
a11241fa
JB		 7787 /*
7788 * Disable Probe Request reporting unless we need it in this way for
7789 * devices that include the AP SME, in the other case (unless using
7790 * monitor iface) we'll get it through the nl_mgmt socket instead.
7791 */
7792 if (!drv->device_ap_sme)
7793 wpa_driver_nl80211_probe_req_report(bss, 0);
7794
7795 if (!drv->device_ap_sme && !drv->use_monitor)
7796 if (nl80211_mgmt_subscribe_ap(bss))
7797 return -1;
7798
a6cc0602
JM		 7799 if (drv->device_ap_sme && !drv->use_monitor)
7800 if (nl80211_mgmt_subscribe_ap_dev_sme(bss))
7801 return -1;
7802
a11241fa 7803 if (!drv->device_ap_sme && drv->use_monitor &&
3fd1cefb
JB		 7804 nl80211_create_monitor_interface(drv) &&
7805 !drv->device_ap_sme)
7806 return -1;
7807
7808 if (drv->device_ap_sme &&
7809 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) {
7810 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable "
7811 "Probe Request frame reporting in AP mode");
7812 /* Try to survive without this */
7813 }
7814
7815 return 0;
7816}
7817
7818
7819static void nl80211_teardown_ap(struct i802_bss *bss)
7820{
7821 struct wpa_driver_nl80211_data *drv = bss->drv;
7822
748c0ac0
JM		 7823 wpa_printf(MSG_DEBUG, "nl80211: Teardown AP(%s) - device_ap_sme=%d use_monitor=%d",
7824 bss->ifname, drv->device_ap_sme, drv->use_monitor);
a6cc0602 7825 if (drv->device_ap_sme) {
3fd1cefb 7826 wpa_driver_nl80211_probe_req_report(bss, 0);
a6cc0602
JM		 7827 if (!drv->use_monitor)
7828 nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)");
7829 } else if (drv->use_monitor)
3fd1cefb 7830 nl80211_remove_monitor_interface(drv);
a11241fa 7831 else
36488c05 7832 nl80211_mgmt_unsubscribe(bss, "AP teardown");
a11241fa 7833
3fd1cefb
JB		 7834 bss->beacon_set = 0;
7835}
7836
7837
f10bfc9a
JM		 7838static int nl80211_send_eapol_data(struct i802_bss *bss,
7839 const u8 *addr, const u8 *data,
d12dab4c 7840 size_t data_len)
f10bfc9a 7841{
d12dab4c
JB		 7842 struct sockaddr_ll ll;
7843 int ret;
7844
7845 if (bss->drv->eapol_tx_sock < 0) {
7846 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL");
f10bfc9a
JM		 7847 return -1;
7848 }
7849
d12dab4c
JB		 7850 os_memset(&ll, 0, sizeof(ll));
7851 ll.sll_family = AF_PACKET;
7852 ll.sll_ifindex = bss->ifindex;
7853 ll.sll_protocol = htons(ETH_P_PAE);
7854 ll.sll_halen = ETH_ALEN;
7855 os_memcpy(ll.sll_addr, addr, ETH_ALEN);
7856 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0,
7857 (struct sockaddr *) &ll, sizeof(ll));
7858 if (ret < 0)
7859 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s",
7860 strerror(errno));
7861
7862 return ret;
f10bfc9a 7863}
5fb1a232 7864
f10bfc9a 7865
db149ac9
JM		 7866static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
7867
7868static int wpa_driver_nl80211_hapd_send_eapol(
7869 void *priv, const u8 *addr, const u8 *data,
4378fc14 7870 size_t data_len, int encrypt, const u8 *own_addr, u32 flags)
db149ac9 7871{
a2e40bb6
FF		 7872 struct i802_bss *bss = priv;
7873 struct wpa_driver_nl80211_data *drv = bss->drv;
db149ac9
JM		 7874 struct ieee80211_hdr *hdr;
7875 size_t len;
7876 u8 *pos;
7877 int res;
4378fc14 7878 int qos = flags & WPA_STA_WMM;
db149ac9 7879
a11241fa 7880 if (drv->device_ap_sme || !drv->use_monitor)
d12dab4c 7881 return nl80211_send_eapol_data(bss, addr, data, data_len);
f10bfc9a 7882
db149ac9
JM		 7883 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 +
7884 data_len;
7885 hdr = os_zalloc(len);
7886 if (hdr == NULL) {
7ac3616d
JM		 7887 wpa_printf(MSG_INFO, "nl80211: Failed to allocate EAPOL buffer(len=%lu)",
7888 (unsigned long) len);
db149ac9
JM		 7889 return -1;
7890 }
7891
7892 hdr->frame_control =
7893 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA);
7894 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS);
7895 if (encrypt)
7896 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP);
db149ac9
JM		 7897 if (qos) {
7898 hdr->frame_control |=
7899 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4);
7900 }
db149ac9
JM		 7901
7902 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN);
7903 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
7904 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
7905 pos = (u8 *) (hdr + 1);
7906
db149ac9 7907 if (qos) {
92d521d8
FF		 7908 /* Set highest priority in QoS header */
7909 pos[0] = 7;
db149ac9
JM		 7910 pos[1] = 0;
7911 pos += 2;
7912 }
db149ac9
JM		 7913
7914 memcpy(pos, rfc1042_header, sizeof(rfc1042_header));
7915 pos += sizeof(rfc1042_header);
7916 WPA_PUT_BE16(pos, ETH_P_PAE);
7917 pos += 2;
7918 memcpy(pos, data, data_len);
7919
55231068
JM		 7920 res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0,
7921 0, 0, 0, 0);
db149ac9
JM		 7922 if (res < 0) {
7923 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - "
7924 "failed: %d (%s)",
7925 (unsigned long) len, errno, strerror(errno));
7926 }
7bf12757 7927 os_free(hdr);
db149ac9
JM		 7928
7929 return res;
7930}
7931
a8d6ffa4 7932
3234cba4
JM		 7933static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr,
7934 int total_flags,
4c32757d 7935 int flags_or, int flags_and)
a8d6ffa4 7936{
a2e40bb6
FF		 7937 struct i802_bss *bss = priv;
7938 struct wpa_driver_nl80211_data *drv = bss->drv;
8970bae8
JB		 7939 struct nl_msg *msg;
7940 struct nlattr *flags;
7e76ee9c 7941 struct nl80211_sta_flag_update upd;
a8d6ffa4
JM		 7942
7943 msg = nlmsg_alloc();
7944 if (!msg)
7945 return -ENOMEM;
7946
9fb04070 7947 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
a8d6ffa4
JM		 7948
7949 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
3234cba4 7950 if_nametoindex(bss->ifname));
a8d6ffa4
JM		 7951 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7952
7e76ee9c
JM		 7953 /*
7954 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This
7955 * can be removed eventually.
7956 */
8970bae8
JB		 7957 flags = nla_nest_start(msg, NL80211_ATTR_STA_FLAGS);
7958 if (!flags)
7959 goto nla_put_failure;
0de39516 7960 if (total_flags & WPA_STA_AUTHORIZED)
8970bae8 7961 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_AUTHORIZED);
a8d6ffa4 7962
0de39516 7963 if (total_flags & WPA_STA_WMM)
8970bae8 7964 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_WME);
a8d6ffa4 7965
0de39516 7966 if (total_flags & WPA_STA_SHORT_PREAMBLE)
8970bae8 7967 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_SHORT_PREAMBLE);
a8d6ffa4 7968
0de39516 7969 if (total_flags & WPA_STA_MFP)
8970bae8 7970 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_MFP);
a8d6ffa4 7971
45b722f1 7972 if (total_flags & WPA_STA_TDLS_PEER)
8970bae8 7973 NLA_PUT_FLAG(msg, NL80211_STA_FLAG_TDLS_PEER);
45b722f1 7974
8970bae8 7975 nla_nest_end(msg, flags);
a8d6ffa4 7976
7e76ee9c
JM		 7977 os_memset(&upd, 0, sizeof(upd));
7978 upd.mask = sta_flags_nl80211(flags_or | ~flags_and);
7979 upd.set = sta_flags_nl80211(flags_or);
7980 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
7981
a8d6ffa4
JM		 7982 return send_and_recv_msgs(drv, msg, NULL, NULL);
7983 nla_put_failure:
5883168a 7984 nlmsg_free(msg);
a8d6ffa4
JM		 7985 return -ENOBUFS;
7986}
7987
0915d02c 7988
1581b38b
JM		 7989static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv,
7990 struct wpa_driver_associate_params *params)
7991{
708bc8e0 7992 enum nl80211_iftype nlmode, old_mode;
89b800d7
JB		 7993 struct hostapd_freq_params freq = {
7994 .freq = params->freq,
7995 };
b1f625e0
EP		 7996
7997 if (params->p2p) {
046b26a2
JM		 7998 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P "
7999 "group (GO)");
b1f625e0
EP		 8000 nlmode = NL80211_IFTYPE_P2P_GO;
8001 } else
8002 nlmode = NL80211_IFTYPE_AP;
8003
708bc8e0 8004 old_mode = drv->nlmode;
834ee56f 8005 if (wpa_driver_nl80211_set_mode(drv->first_bss, nlmode)) {
708bc8e0
JM		 8006 nl80211_remove_monitor_interface(drv);
8007 return -1;
8008 }
8009
834ee56f 8010 if (wpa_driver_nl80211_set_freq(drv->first_bss, &freq)) {
708bc8e0 8011 if (old_mode != nlmode)
834ee56f 8012 wpa_driver_nl80211_set_mode(drv->first_bss, old_mode);
460456f8 8013 nl80211_remove_monitor_interface(drv);
1581b38b 8014 return -1;
0915d02c 8015 }
1581b38b 8016
1581b38b
JM		 8017 return 0;
8018}
1581b38b
JM		 8019
8020
5cc4d64b
JM		 8021static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv)
8022{
8023 struct nl_msg *msg;
8024 int ret = -1;
8025
8026 msg = nlmsg_alloc();
8027 if (!msg)
8028 return -1;
8029
9fb04070 8030 nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS);
5cc4d64b
JM		 8031 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8032 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8033 msg = NULL;
8034 if (ret) {
8035 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d "
8036 "(%s)", ret, strerror(-ret));
8037 goto nla_put_failure;
8038 }
8039
8040 ret = 0;
8041 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully");
8042
8043nla_put_failure:
834ee56f 8044 if (wpa_driver_nl80211_set_mode(drv->first_bss,
5d4c78fb
JM		 8045 NL80211_IFTYPE_STATION)) {
8046 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into "
8047 "station mode");
8048 }
8049
5cc4d64b
JM		 8050 nlmsg_free(msg);
8051 return ret;
8052}
8053
8054
8055static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv,
8056 struct wpa_driver_associate_params *params)
8057{
8058 struct nl_msg *msg;
8059 int ret = -1;
8060 int count = 0;
8061
8062 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex);
8063
834ee56f 8064 if (wpa_driver_nl80211_set_mode(drv->first_bss,
b1f625e0 8065 NL80211_IFTYPE_ADHOC)) {
5cc4d64b
JM		 8066 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into "
8067 "IBSS mode");
8068 return -1;
8069 }
8070
8071retry:
8072 msg = nlmsg_alloc();
8073 if (!msg)
8074 return -1;
8075
9fb04070 8076 nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS);
5cc4d64b
JM		 8077 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8078
8079 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid))
8080 goto nla_put_failure;
8081
8082 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
8083 params->ssid, params->ssid_len);
8084 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
8085 params->ssid);
8086 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
8087 drv->ssid_len = params->ssid_len;
8088
8089 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
8090 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
8091
8092 ret = nl80211_set_conn_keys(params, msg);
8093 if (ret)
8094 goto nla_put_failure;
8095
913e3cf7
NC		 8096 if (params->bssid && params->fixed_bssid) {
8097 wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR,
8098 MAC2STR(params->bssid));
8099 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
8100 }
8101
e640888c
AQ		 8102 if (params->key_mgmt_suite == KEY_MGMT_802_1X ||
8103 params->key_mgmt_suite == KEY_MGMT_PSK ||
8104 params->key_mgmt_suite == KEY_MGMT_802_1X_SHA256 ||
8105 params->key_mgmt_suite == KEY_MGMT_PSK_SHA256) {
8106 wpa_printf(MSG_DEBUG, " * control port");
8107 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
8108 }
8109
a95795ad
JM		 8110 if (params->wpa_ie) {
8111 wpa_hexdump(MSG_DEBUG,
8112 " * Extra IEs for Beacon/Probe Response frames",
8113 params->wpa_ie, params->wpa_ie_len);
8114 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
8115 params->wpa_ie);
8116 }
8117
5cc4d64b
JM		 8118 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8119 msg = NULL;
8120 if (ret) {
8121 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)",
8122 ret, strerror(-ret));
8123 count++;
8124 if (ret == -EALREADY && count == 1) {
8125 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after "
8126 "forced leave");
8127 nl80211_leave_ibss(drv);
8128 nlmsg_free(msg);
8129 goto retry;
8130 }
8131
8132 goto nla_put_failure;
8133 }
8134 ret = 0;
8135 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully");
8136
8137nla_put_failure:
8138 nlmsg_free(msg);
8139 return ret;
8140}
8141
8142
a8c5b43a 8143static int wpa_driver_nl80211_try_connect(
cfaab580
ZY		 8144 struct wpa_driver_nl80211_data *drv,
8145 struct wpa_driver_associate_params *params)
8146{
8147 struct nl_msg *msg;
8148 enum nl80211_auth_type type;
8149 int ret = 0;
3f360238 8150 int algs;
cfaab580
ZY		 8151
8152 msg = nlmsg_alloc();
8153 if (!msg)
8154 return -1;
8155
8156 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex);
9fb04070 8157 nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT);
cfaab580
ZY		 8158
8159 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8160 if (params->bssid) {
8161 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
8162 MAC2STR(params->bssid));
8163 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
8164 }
8165 if (params->freq) {
8166 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
8167 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
30158a0d
SD		 8168 drv->assoc_freq = params->freq;
8169 } else
8170 drv->assoc_freq = 0;
1f6c0ab8
BS		 8171 if (params->bg_scan_period >= 0) {
8172 wpa_printf(MSG_DEBUG, " * bg scan period=%d",
8173 params->bg_scan_period);
8174 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD,
8175 params->bg_scan_period);
8176 }
cfaab580
ZY		 8177 if (params->ssid) {
8178 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
8179 params->ssid, params->ssid_len);
8180 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
8181 params->ssid);
8182 if (params->ssid_len > sizeof(drv->ssid))
8183 goto nla_put_failure;
8184 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
8185 drv->ssid_len = params->ssid_len;
8186 }
8187 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
8188 if (params->wpa_ie)
8189 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
8190 params->wpa_ie);
8191
3f360238
JM		 8192 algs = 0;
8193 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
8194 algs++;
8195 if (params->auth_alg & WPA_AUTH_ALG_SHARED)
8196 algs++;
8197 if (params->auth_alg & WPA_AUTH_ALG_LEAP)
8198 algs++;
8199 if (algs > 1) {
8200 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic "
8201 "selection");
8202 goto skip_auth_type;
8203 }
8204
abd9fafa 8205 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
cfaab580 8206 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
abd9fafa 8207 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
cfaab580 8208 type = NL80211_AUTHTYPE_SHARED_KEY;
abd9fafa 8209 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
cfaab580 8210 type = NL80211_AUTHTYPE_NETWORK_EAP;
abd9fafa 8211 else if (params->auth_alg & WPA_AUTH_ALG_FT)
cfaab580
ZY		 8212 type = NL80211_AUTHTYPE_FT;
8213 else
8214 goto nla_put_failure;
8215
8216 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
8217 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
8218
3f360238 8219skip_auth_type:
64fa840a
JM		 8220 if (params->wpa_proto) {
8221 enum nl80211_wpa_versions ver = 0;
cfaab580 8222
64fa840a
JM		 8223 if (params->wpa_proto & WPA_PROTO_WPA)
8224 ver |= NL80211_WPA_VERSION_1;
8225 if (params->wpa_proto & WPA_PROTO_RSN)
8226 ver |= NL80211_WPA_VERSION_2;
cfaab580 8227
64fa840a 8228 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver);
cfaab580
ZY		 8229 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
8230 }
8231
8232 if (params->pairwise_suite != CIPHER_NONE) {
c1bb3e0a 8233 int cipher;
cfaab580
ZY		 8234
8235 switch (params->pairwise_suite) {
369c8d7b
JM		 8236 case CIPHER_SMS4:
8237 cipher = WLAN_CIPHER_SUITE_SMS4;
8238 break;
cfaab580
ZY		 8239 case CIPHER_WEP40:
8240 cipher = WLAN_CIPHER_SUITE_WEP40;
8241 break;
8242 case CIPHER_WEP104:
8243 cipher = WLAN_CIPHER_SUITE_WEP104;
8244 break;
8245 case CIPHER_CCMP:
8246 cipher = WLAN_CIPHER_SUITE_CCMP;
8247 break;
eb7719ff
JM		 8248 case CIPHER_GCMP:
8249 cipher = WLAN_CIPHER_SUITE_GCMP;
8250 break;
30675c34
JM		 8251 case CIPHER_CCMP_256:
8252 cipher = WLAN_CIPHER_SUITE_CCMP_256;
8253 break;
8254 case CIPHER_GCMP_256:
8255 cipher = WLAN_CIPHER_SUITE_GCMP_256;
8256 break;
cfaab580
ZY		 8257 case CIPHER_TKIP:
8258 default:
8259 cipher = WLAN_CIPHER_SUITE_TKIP;
8260 break;
8261 }
8262 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
8263 }
8264
8265 if (params->group_suite != CIPHER_NONE) {
c1bb3e0a 8266 int cipher;
cfaab580
ZY		 8267
8268 switch (params->group_suite) {
369c8d7b
JM		 8269 case CIPHER_SMS4:
8270 cipher = WLAN_CIPHER_SUITE_SMS4;
8271 break;
cfaab580
ZY		 8272 case CIPHER_WEP40:
8273 cipher = WLAN_CIPHER_SUITE_WEP40;
8274 break;
8275 case CIPHER_WEP104:
8276 cipher = WLAN_CIPHER_SUITE_WEP104;
8277 break;
8278 case CIPHER_CCMP:
8279 cipher = WLAN_CIPHER_SUITE_CCMP;
8280 break;
eb7719ff
JM		 8281 case CIPHER_GCMP:
8282 cipher = WLAN_CIPHER_SUITE_GCMP;
8283 break;
30675c34
JM		 8284 case CIPHER_CCMP_256:
8285 cipher = WLAN_CIPHER_SUITE_CCMP_256;
8286 break;
8287 case CIPHER_GCMP_256:
8288 cipher = WLAN_CIPHER_SUITE_GCMP_256;
8289 break;
cfaab580
ZY		 8290 case CIPHER_TKIP:
8291 default:
8292 cipher = WLAN_CIPHER_SUITE_TKIP;
8293 break;
8294 }
8295 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
8296 }
8297
8298 if (params->key_mgmt_suite == KEY_MGMT_802_1X ||
369c8d7b 8299 params->key_mgmt_suite == KEY_MGMT_PSK ||
6a1ce395
DG		 8300 params->key_mgmt_suite == KEY_MGMT_FT_802_1X ||
8301 params->key_mgmt_suite == KEY_MGMT_FT_PSK ||
369c8d7b 8302 params->key_mgmt_suite == KEY_MGMT_CCKM) {
cfaab580
ZY		 8303 int mgmt = WLAN_AKM_SUITE_PSK;
8304
8305 switch (params->key_mgmt_suite) {
369c8d7b
JM		 8306 case KEY_MGMT_CCKM:
8307 mgmt = WLAN_AKM_SUITE_CCKM;
8308 break;
cfaab580
ZY		 8309 case KEY_MGMT_802_1X:
8310 mgmt = WLAN_AKM_SUITE_8021X;
8311 break;
6a1ce395
DG		 8312 case KEY_MGMT_FT_802_1X:
8313 mgmt = WLAN_AKM_SUITE_FT_8021X;
8314 break;
8315 case KEY_MGMT_FT_PSK:
8316 mgmt = WLAN_AKM_SUITE_FT_PSK;
8317 break;
cfaab580
ZY		 8318 case KEY_MGMT_PSK:
8319 default:
8320 mgmt = WLAN_AKM_SUITE_PSK;
8321 break;
8322 }
8323 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt);
8324 }
8325
8b706a99
JM		 8326#ifdef CONFIG_IEEE80211W
8327 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED)
8328 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED);
8329#endif /* CONFIG_IEEE80211W */
8330
80e8a5ee
BG		 8331 if (params->disable_ht)
8332 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT);
8333
8334 if (params->htcaps && params->htcaps_mask) {
8335 int sz = sizeof(struct ieee80211_ht_capabilities);
8336 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps);
8337 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz,
8338 params->htcaps_mask);
8339 }
8340
e9ee8dc3
JB		 8341#ifdef CONFIG_VHT_OVERRIDES
8342 if (params->disable_vht) {
8343 wpa_printf(MSG_DEBUG, " * VHT disabled");
8344 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT);
8345 }
8346
8347 if (params->vhtcaps && params->vhtcaps_mask) {
8348 int sz = sizeof(struct ieee80211_vht_capabilities);
8349 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps);
8350 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz,
8351 params->vhtcaps_mask);
8352 }
8353#endif /* CONFIG_VHT_OVERRIDES */
8354
cfaab580
ZY		 8355 ret = nl80211_set_conn_keys(params, msg);
8356 if (ret)
8357 goto nla_put_failure;
8358
8359 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8360 msg = NULL;
8361 if (ret) {
8362 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d "
8363 "(%s)", ret, strerror(-ret));
8364 goto nla_put_failure;
8365 }
8366 ret = 0;
8367 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully");
8368
8369nla_put_failure:
8370 nlmsg_free(msg);
8371 return ret;
8372
8373}
8374
8375
a8c5b43a
CW		 8376static int wpa_driver_nl80211_connect(
8377 struct wpa_driver_nl80211_data *drv,
8378 struct wpa_driver_associate_params *params)
8379{
8380 int ret = wpa_driver_nl80211_try_connect(drv, params);
8381 if (ret == -EALREADY) {
8382 /*
8383 * cfg80211 does not currently accept new connections if
8384 * we are already connected. As a workaround, force
8385 * disconnection and try again.
8386 */
8387 wpa_printf(MSG_DEBUG, "nl80211: Explicitly "
8388 "disconnecting before reassociation "
8389 "attempt");
8390 if (wpa_driver_nl80211_disconnect(
8391 drv, WLAN_REASON_PREV_AUTH_NOT_VALID))
8392 return -1;
a8c5b43a
CW		 8393 ret = wpa_driver_nl80211_try_connect(drv, params);
8394 }
8395 return ret;
8396}
8397
8398
c2a04078
JM		 8399static int wpa_driver_nl80211_associate(
8400 void *priv, struct wpa_driver_associate_params *params)
8401{
a2e40bb6
FF		 8402 struct i802_bss *bss = priv;
8403 struct wpa_driver_nl80211_data *drv = bss->drv;
c2a04078
JM		 8404 int ret = -1;
8405 struct nl_msg *msg;
8406
5cc4d64b 8407 if (params->mode == IEEE80211_MODE_AP)
1581b38b 8408 return wpa_driver_nl80211_ap(drv, params);
1581b38b 8409
5cc4d64b
JM		 8410 if (params->mode == IEEE80211_MODE_IBSS)
8411 return wpa_driver_nl80211_ibss(drv, params);
8412
4a867032 8413 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) {
b1f625e0
EP		 8414 enum nl80211_iftype nlmode = params->p2p ?
8415 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
8416
8417 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0)
4a867032 8418 return -1;
cfaab580 8419 return wpa_driver_nl80211_connect(drv, params);
4a867032 8420 }
cfaab580 8421
add9b7a4 8422 nl80211_mark_disconnected(drv);
c2a04078
JM		 8423
8424 msg = nlmsg_alloc();
8425 if (!msg)
8426 return -1;
8427
8428 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)",
8429 drv->ifindex);
9fb04070 8430 nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE);
c2a04078
JM		 8431
8432 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8433 if (params->bssid) {
8434 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
8435 MAC2STR(params->bssid));
8436 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
8437 }
8438 if (params->freq) {
8439 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
8440 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
4832ecd7
JM		 8441 drv->assoc_freq = params->freq;
8442 } else
8443 drv->assoc_freq = 0;
1f6c0ab8
BS		 8444 if (params->bg_scan_period >= 0) {
8445 wpa_printf(MSG_DEBUG, " * bg scan period=%d",
8446 params->bg_scan_period);
8447 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD,
8448 params->bg_scan_period);
8449 }
c2a04078
JM		 8450 if (params->ssid) {
8451 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
8452 params->ssid, params->ssid_len);
8453 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
8454 params->ssid);
fd05d64e
JM		 8455 if (params->ssid_len > sizeof(drv->ssid))
8456 goto nla_put_failure;
8457 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
8458 drv->ssid_len = params->ssid_len;
c2a04078
JM		 8459 }
8460 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
8461 if (params->wpa_ie)
8462 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
8463 params->wpa_ie);
8464
aca01605
JM		 8465 if (params->pairwise_suite != CIPHER_NONE) {
8466 int cipher;
8467
8468 switch (params->pairwise_suite) {
8469 case CIPHER_WEP40:
8470 cipher = WLAN_CIPHER_SUITE_WEP40;
8471 break;
8472 case CIPHER_WEP104:
8473 cipher = WLAN_CIPHER_SUITE_WEP104;
8474 break;
8475 case CIPHER_CCMP:
8476 cipher = WLAN_CIPHER_SUITE_CCMP;
8477 break;
eb7719ff
JM		 8478 case CIPHER_GCMP:
8479 cipher = WLAN_CIPHER_SUITE_GCMP;
8480 break;
30675c34
JM		 8481 case CIPHER_CCMP_256:
8482 cipher = WLAN_CIPHER_SUITE_CCMP_256;
8483 break;
8484 case CIPHER_GCMP_256:
8485 cipher = WLAN_CIPHER_SUITE_GCMP_256;
8486 break;
aca01605
JM		 8487 case CIPHER_TKIP:
8488 default:
8489 cipher = WLAN_CIPHER_SUITE_TKIP;
8490 break;
8491 }
79c3124c 8492 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher);
aca01605
JM		 8493 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
8494 }
8495
8496 if (params->group_suite != CIPHER_NONE) {
8497 int cipher;
8498
8499 switch (params->group_suite) {
8500 case CIPHER_WEP40:
8501 cipher = WLAN_CIPHER_SUITE_WEP40;
8502 break;
8503 case CIPHER_WEP104:
8504 cipher = WLAN_CIPHER_SUITE_WEP104;
8505 break;
8506 case CIPHER_CCMP:
8507 cipher = WLAN_CIPHER_SUITE_CCMP;
8508 break;
eb7719ff
JM		 8509 case CIPHER_GCMP:
8510 cipher = WLAN_CIPHER_SUITE_GCMP;
8511 break;
30675c34
JM		 8512 case CIPHER_CCMP_256:
8513 cipher = WLAN_CIPHER_SUITE_CCMP_256;
8514 break;
8515 case CIPHER_GCMP_256:
8516 cipher = WLAN_CIPHER_SUITE_GCMP_256;
8517 break;
aca01605
JM		 8518 case CIPHER_TKIP:
8519 default:
8520 cipher = WLAN_CIPHER_SUITE_TKIP;
8521 break;
8522 }
79c3124c 8523 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher);
aca01605
JM		 8524 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
8525 }
8526
e572fa33
JM		 8527#ifdef CONFIG_IEEE80211W
8528 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED)
8529 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED);
8530#endif /* CONFIG_IEEE80211W */
8531
01652550
JM		 8532 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
8533
62fa124c
JM		 8534 if (params->prev_bssid) {
8535 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR,
8536 MAC2STR(params->prev_bssid));
8537 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN,
8538 params->prev_bssid);
8539 }
8540
80e8a5ee
BG		 8541 if (params->disable_ht)
8542 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT);
8543
8544 if (params->htcaps && params->htcaps_mask) {
8545 int sz = sizeof(struct ieee80211_ht_capabilities);
8546 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps);
8547 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz,
8548 params->htcaps_mask);
8549 }
8550
e9ee8dc3
JB		 8551#ifdef CONFIG_VHT_OVERRIDES
8552 if (params->disable_vht) {
8553 wpa_printf(MSG_DEBUG, " * VHT disabled");
8554 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_VHT);
8555 }
8556
8557 if (params->vhtcaps && params->vhtcaps_mask) {
8558 int sz = sizeof(struct ieee80211_vht_capabilities);
8559 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY, sz, params->vhtcaps);
8560 NLA_PUT(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, sz,
8561 params->vhtcaps_mask);
8562 }
8563#endif /* CONFIG_VHT_OVERRIDES */
8564
046b26a2
JM		 8565 if (params->p2p)
8566 wpa_printf(MSG_DEBUG, " * P2P group");
8567
c2a04078
JM		 8568 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8569 msg = NULL;
8570 if (ret) {
3b7ea880
BG		 8571 wpa_dbg(drv->ctx, MSG_DEBUG,
8572 "nl80211: MLME command failed (assoc): ret=%d (%s)",
8573 ret, strerror(-ret));
8856462d 8574 nl80211_dump_scan(drv);
c2a04078
JM		 8575 goto nla_put_failure;
8576 }
8577 ret = 0;
8578 wpa_printf(MSG_DEBUG, "nl80211: Association request send "
8579 "successfully");
8580
8581nla_put_failure:
8582 nlmsg_free(msg);
8583 return ret;
8584}
3f5285e8
JM		 8585
8586
ad1e68e6 8587static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv,
a1922f93 8588 int ifindex, enum nl80211_iftype mode)
3f5285e8 8589{
3f5285e8 8590 struct nl_msg *msg;
ad1e68e6
JM		 8591 int ret = -ENOBUFS;
8592
a1922f93
JM		 8593 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)",
8594 ifindex, mode, nl80211_iftype_str(mode));
8595
ad1e68e6
JM		 8596 msg = nlmsg_alloc();
8597 if (!msg)
8598 return -ENOMEM;
8599
9fb04070 8600 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE);
834ee56f 8601 if (nl80211_set_iface_id(msg, drv->first_bss) < 0)
f632e483 8602 goto nla_put_failure;
ad1e68e6
JM		 8603 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode);
8604
8605 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5883168a 8606 msg = NULL;
ad1e68e6
JM		 8607 if (!ret)
8608 return 0;
8609nla_put_failure:
5883168a 8610 nlmsg_free(msg);
ad1e68e6
JM		 8611 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:"
8612 " %d (%s)", ifindex, mode, ret, strerror(-ret));
8613 return ret;
8614}
8615
8616
b1f625e0
EP		 8617static int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
8618 enum nl80211_iftype nlmode)
ad1e68e6 8619{
a2e40bb6 8620 struct wpa_driver_nl80211_data *drv = bss->drv;
ad1e68e6 8621 int ret = -1;
26af9dca 8622 int i;
86957e62 8623 int was_ap = is_ap_interface(drv->nlmode);
671a5039 8624 int res;
1581b38b 8625
671a5039 8626 res = nl80211_set_mode(drv, drv->ifindex, nlmode);
8e12685c
AS		 8627 if (res && nlmode == nl80211_get_ifmode(bss))
8628 res = 0;
8629
671a5039 8630 if (res == 0) {
ad1e68e6 8631 drv->nlmode = nlmode;
460456f8
JM		 8632 ret = 0;
8633 goto done;
ad1e68e6 8634 }
3f5285e8 8635
671a5039
JM		 8636 if (res == -ENODEV)
8637 return -1;
8638
460456f8 8639 if (nlmode == drv->nlmode) {
c6e8e8e4
JM		 8640 wpa_printf(MSG_DEBUG, "nl80211: Interface already in "
8641 "requested mode - ignore error");
460456f8
JM		 8642 ret = 0;
8643 goto done; /* Already in the requested mode */
8644 }
3f5285e8 8645
3f5285e8
JM		 8646 /* mac80211 doesn't allow mode changes while the device is up, so
8647 * take the device down, try to set the mode again, and bring the
8648 * device back up.
8649 */
26af9dca
JM		 8650 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting "
8651 "interface down");
8652 for (i = 0; i < 10; i++) {
91724d6f 8653 res = i802_set_iface_flags(bss, 0);
6e8183d7
JM		 8654 if (res == -EACCES || res == -ENODEV)
8655 break;
8656 if (res == 0) {
26af9dca
JM		 8657 /* Try to set the mode again while the interface is
8658 * down */
8659 ret = nl80211_set_mode(drv, drv->ifindex, nlmode);
6e8183d7
JM		 8660 if (ret == -EACCES)
8661 break;
91724d6f 8662 res = i802_set_iface_flags(bss, 1);
6e8183d7 8663 if (res && !ret)
26af9dca 8664 ret = -1;
6e8183d7 8665 else if (ret != -EBUSY)
26af9dca
JM		 8666 break;
8667 } else
8668 wpa_printf(MSG_DEBUG, "nl80211: Failed to set "
8669 "interface down");
8670 os_sleep(0, 100000);
3f5285e8
JM		 8671 }
8672
c6e8e8e4
JM		 8673 if (!ret) {
8674 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while "
8675 "interface is down");
ad1e68e6 8676 drv->nlmode = nlmode;
7d9c3698 8677 drv->ignore_if_down_event = 1;
c6e8e8e4 8678 }
ad1e68e6 8679
460456f8 8680done:
3fd1cefb
JB		 8681 if (ret) {
8682 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d "
8683 "from %d failed", nlmode, drv->nlmode);
8684 return ret;
8685 }
8686
6a71413e 8687 if (is_p2p_net_interface(nlmode))
edb9bfba 8688 nl80211_disable_11b_rates(drv, drv->ifindex, 1);
1d0c6fb1
JM		 8689 else if (drv->disabled_11b_rates)
8690 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
edb9bfba 8691
3fd1cefb 8692 if (is_ap_interface(nlmode)) {
36488c05 8693 nl80211_mgmt_unsubscribe(bss, "start AP");
460456f8 8694 /* Setup additional AP mode functionality if needed */
3fd1cefb 8695 if (nl80211_setup_ap(bss))
460456f8 8696 return -1;
3fd1cefb 8697 } else if (was_ap) {
460456f8 8698 /* Remove additional AP mode functionality */
3fd1cefb 8699 nl80211_teardown_ap(bss);
a11241fa 8700 } else {
36488c05 8701 nl80211_mgmt_unsubscribe(bss, "mode change");
460456f8 8702 }
460456f8 8703
873d0fcf 8704 if (!bss->in_deinit && !is_ap_interface(nlmode) &&
a11241fa
JB		 8705 nl80211_mgmt_subscribe_non_ap(bss) < 0)
8706 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action "
8707 "frame processing - ignore for now");
08359050 8708
3fd1cefb 8709 return 0;
3f5285e8
JM		 8710}
8711
8712
3f5285e8
JM		 8713static int wpa_driver_nl80211_get_capa(void *priv,
8714 struct wpa_driver_capa *capa)
8715{
a2e40bb6
FF		 8716 struct i802_bss *bss = priv;
8717 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8
JM		 8718 if (!drv->has_capability)
8719 return -1;
8720 os_memcpy(capa, &drv->capa, sizeof(*capa));
8cd6b7bc
JB		 8721 if (drv->extended_capa && drv->extended_capa_mask) {
8722 capa->extended_capa = drv->extended_capa;
8723 capa->extended_capa_mask = drv->extended_capa_mask;
8724 capa->extended_capa_len = drv->extended_capa_len;
8725 }
851b0c55
JM		 8726
8727 if ((capa->flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
8728 !drv->allow_p2p_device) {
8729 wpa_printf(MSG_DEBUG, "nl80211: Do not indicate P2P_DEVICE support (p2p_device=1 driver param not specified)");
8730 capa->flags &= ~WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE;
8731 }
8732
3f5285e8
JM		 8733 return 0;
8734}
8735
8736
8737static int wpa_driver_nl80211_set_operstate(void *priv, int state)
8738{
a2e40bb6
FF		 8739 struct i802_bss *bss = priv;
8740 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8
JM		 8741
8742 wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)",
8743 __func__, drv->operstate, state, state ? "UP" : "DORMANT");
8744 drv->operstate = state;
36d84860 8745 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1,
e2d02c29 8746 state ? IF_OPER_UP : IF_OPER_DORMANT);
3f5285e8
JM		 8747}
8748
01652550
JM		 8749
8750static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized)
8751{
a2e40bb6
FF		 8752 struct i802_bss *bss = priv;
8753 struct wpa_driver_nl80211_data *drv = bss->drv;
01652550
JM		 8754 struct nl_msg *msg;
8755 struct nl80211_sta_flag_update upd;
8756
1ba51ec0
JM		 8757 wpa_printf(MSG_DEBUG, "nl80211: Set supplicant port %sauthorized for "
8758 MACSTR, authorized ? "" : "un", MAC2STR(drv->bssid));
8759
01652550
JM		 8760 msg = nlmsg_alloc();
8761 if (!msg)
8762 return -ENOMEM;
8763
9fb04070 8764 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
01652550
JM		 8765
8766 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 8767 if_nametoindex(bss->ifname));
01652550
JM		 8768 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
8769
8770 os_memset(&upd, 0, sizeof(upd));
8771 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED);
8772 if (authorized)
8773 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED);
8774 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
8775
8776 return send_and_recv_msgs(drv, msg, NULL, NULL);
8777 nla_put_failure:
5883168a 8778 nlmsg_free(msg);
01652550
JM		 8779 return -ENOBUFS;
8780}
8781
3f5285e8 8782
f07ead6a
JM		 8783/* Set kernel driver on given frequency (MHz) */
8784static int i802_set_freq(void *priv, struct hostapd_freq_params *freq)
c5121837 8785{
f07ead6a 8786 struct i802_bss *bss = priv;
89b800d7 8787 return wpa_driver_nl80211_set_freq(bss, freq);
c5121837
JM		 8788}
8789
f7b3920c 8790
c5121837
JM		 8791static inline int min_int(int a, int b)
8792{
8793 if (a < b)
8794 return a;
8795 return b;
8796}
8797
8798
8799static int get_key_handler(struct nl_msg *msg, void *arg)
8800{
8801 struct nlattr *tb[NL80211_ATTR_MAX + 1];
8802 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
8803
8804 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
8805 genlmsg_attrlen(gnlh, 0), NULL);
8806
8807 /*
8808 * TODO: validate the key index and mac address!
8809 * Otherwise, there's a race condition as soon as
8810 * the kernel starts sending key notifications.
8811 */
8812
8813 if (tb[NL80211_ATTR_KEY_SEQ])
8814 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]),
8815 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6));
8816 return NL_SKIP;
8817}
8818
8819
8820static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
8821 int idx, u8 *seq)
8822{
a2e40bb6
FF		 8823 struct i802_bss *bss = priv;
8824 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 8825 struct nl_msg *msg;
8826
8827 msg = nlmsg_alloc();
8828 if (!msg)
8829 return -ENOMEM;
8830
9fb04070 8831 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY);
c5121837
JM		 8832
8833 if (addr)
8834 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
8835 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
8836 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
8837
8838 memset(seq, 0, 6);
8839
8840 return send_and_recv_msgs(drv, msg, get_key_handler, seq);
8841 nla_put_failure:
9e088e74 8842 nlmsg_free(msg);
c5121837
JM		 8843 return -ENOBUFS;
8844}
8845
8846
c5121837
JM		 8847static int i802_set_rts(void *priv, int rts)
8848{
a2e40bb6
FF		 8849 struct i802_bss *bss = priv;
8850 struct wpa_driver_nl80211_data *drv = bss->drv;
ad649451
JM		 8851 struct nl_msg *msg;
8852 int ret = -ENOBUFS;
8853 u32 val;
c5121837 8854
ad649451
JM		 8855 msg = nlmsg_alloc();
8856 if (!msg)
8857 return -ENOMEM;
c5121837 8858
ad649451
JM		 8859 if (rts >= 2347)
8860 val = (u32) -1;
8861 else
8862 val = rts;
c5121837 8863
9fb04070 8864 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
ad649451
JM		 8865 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8866 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val);
8867
8868 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5883168a 8869 msg = NULL;
ad649451
JM		 8870 if (!ret)
8871 return 0;
8872nla_put_failure:
5883168a 8873 nlmsg_free(msg);
ad649451
JM		 8874 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: "
8875 "%d (%s)", rts, ret, strerror(-ret));
8876 return ret;
c5121837
JM		 8877}
8878
8879
8880static int i802_set_frag(void *priv, int frag)
8881{
a2e40bb6
FF		 8882 struct i802_bss *bss = priv;
8883 struct wpa_driver_nl80211_data *drv = bss->drv;
ad649451
JM		 8884 struct nl_msg *msg;
8885 int ret = -ENOBUFS;
8886 u32 val;
c5121837 8887
ad649451
JM		 8888 msg = nlmsg_alloc();
8889 if (!msg)
8890 return -ENOMEM;
c5121837 8891
ad649451
JM		 8892 if (frag >= 2346)
8893 val = (u32) -1;
8894 else
8895 val = frag;
c5121837 8896
9fb04070 8897 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
ad649451
JM		 8898 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8899 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val);
8900
8901 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5883168a 8902 msg = NULL;
ad649451
JM		 8903 if (!ret)
8904 return 0;
8905nla_put_failure:
5883168a 8906 nlmsg_free(msg);
ad649451
JM		 8907 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold "
8908 "%d: %d (%s)", frag, ret, strerror(-ret));
8909 return ret;
c5121837
JM		 8910}
8911
8912
c5121837
JM		 8913static int i802_flush(void *priv)
8914{
a2e40bb6
FF		 8915 struct i802_bss *bss = priv;
8916 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837 8917 struct nl_msg *msg;
82554b10 8918 int res;
c5121837
JM		 8919
8920 msg = nlmsg_alloc();
8921 if (!msg)
8922 return -1;
8923
83e7bb0e
JM		 8924 wpa_printf(MSG_DEBUG, "nl80211: flush -> DEL_STATION %s (all)",
8925 bss->ifname);
9fb04070 8926 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION);
c5121837
JM		 8927
8928 /*
8929 * XXX: FIX! this needs to flush all VLANs too
8930 */
8931 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 8932 if_nametoindex(bss->ifname));
c5121837 8933
82554b10
JM		 8934 res = send_and_recv_msgs(drv, msg, NULL, NULL);
8935 if (res) {
8936 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d "
8937 "(%s)", res, strerror(-res));
8938 }
8939 return res;
c5121837 8940 nla_put_failure:
9e088e74 8941 nlmsg_free(msg);
c5121837
JM		 8942 return -ENOBUFS;
8943}
8944
8945
8946static int get_sta_handler(struct nl_msg *msg, void *arg)
8947{
8948 struct nlattr *tb[NL80211_ATTR_MAX + 1];
8949 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
8950 struct hostap_sta_driver_data *data = arg;
8951 struct nlattr *stats[NL80211_STA_INFO_MAX + 1];
8952 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
8953 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
8954 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
8955 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
8956 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
8957 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
dc7785f8 8958 [NL80211_STA_INFO_TX_FAILED] = { .type = NLA_U32 },
c5121837
JM		 8959 };
8960
8961 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
8962 genlmsg_attrlen(gnlh, 0), NULL);
8963
8964 /*
8965 * TODO: validate the interface and mac address!
8966 * Otherwise, there's a race condition as soon as
8967 * the kernel starts sending station notifications.
8968 */
8969
8970 if (!tb[NL80211_ATTR_STA_INFO]) {
8971 wpa_printf(MSG_DEBUG, "sta stats missing!");
8972 return NL_SKIP;
8973 }
8974 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX,
8975 tb[NL80211_ATTR_STA_INFO],
8976 stats_policy)) {
8977 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!");
8978 return NL_SKIP;
8979 }
8980
8981 if (stats[NL80211_STA_INFO_INACTIVE_TIME])
8982 data->inactive_msec =
8983 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]);
8984 if (stats[NL80211_STA_INFO_RX_BYTES])
8985 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]);
8986 if (stats[NL80211_STA_INFO_TX_BYTES])
8987 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]);
8988 if (stats[NL80211_STA_INFO_RX_PACKETS])
8989 data->rx_packets =
8990 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]);
8991 if (stats[NL80211_STA_INFO_TX_PACKETS])
8992 data->tx_packets =
8993 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]);
dc7785f8
YZ		 8994 if (stats[NL80211_STA_INFO_TX_FAILED])
8995 data->tx_retry_failed =
8996 nla_get_u32(stats[NL80211_STA_INFO_TX_FAILED]);
c5121837
JM		 8997
8998 return NL_SKIP;
8999}
9000
9ebce9c5
JM		 9001static int i802_read_sta_data(struct i802_bss *bss,
9002 struct hostap_sta_driver_data *data,
c5121837
JM		 9003 const u8 *addr)
9004{
a2e40bb6 9005 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 9006 struct nl_msg *msg;
9007
9008 os_memset(data, 0, sizeof(*data));
9009 msg = nlmsg_alloc();
9010 if (!msg)
9011 return -ENOMEM;
9012
9fb04070 9013 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION);
c5121837
JM		 9014
9015 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
a2e40bb6 9016 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
c5121837
JM		 9017
9018 return send_and_recv_msgs(drv, msg, get_sta_handler, data);
9019 nla_put_failure:
9e088e74 9020 nlmsg_free(msg);
c5121837
JM		 9021 return -ENOBUFS;
9022}
9023
9024
c5121837
JM		 9025static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
9026 int cw_min, int cw_max, int burst_time)
9027{
a2e40bb6
FF		 9028 struct i802_bss *bss = priv;
9029 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 9030 struct nl_msg *msg;
9031 struct nlattr *txq, *params;
9032
9033 msg = nlmsg_alloc();
9034 if (!msg)
9035 return -1;
9036
9fb04070 9037 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
c5121837 9038
a2e40bb6 9039 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
c5121837
JM		 9040
9041 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS);
9042 if (!txq)
9043 goto nla_put_failure;
9044
9045 /* We are only sending parameters for a single TXQ at a time */
9046 params = nla_nest_start(msg, 1);
9047 if (!params)
9048 goto nla_put_failure;
9049
7e3c1781
JM		 9050 switch (queue) {
9051 case 0:
9052 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO);
9053 break;
9054 case 1:
9055 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI);
9056 break;
9057 case 2:
9058 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE);
9059 break;
9060 case 3:
9061 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK);
9062 break;
9063 }
c5121837
JM		 9064 /* Burst time is configured in units of 0.1 msec and TXOP parameter in
9065 * 32 usec, so need to convert the value here. */
9066 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32);
9067 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min);
9068 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max);
9069 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs);
9070
9071 nla_nest_end(msg, params);
9072
9073 nla_nest_end(msg, txq);
9074
9075 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
9076 return 0;
9e088e74 9077 msg = NULL;
c5121837 9078 nla_put_failure:
9e088e74 9079 nlmsg_free(msg);
c5121837
JM		 9080 return -1;
9081}
9082
9083
9ebce9c5 9084static int i802_set_sta_vlan(struct i802_bss *bss, const u8 *addr,
c5121837
JM		 9085 const char *ifname, int vlan_id)
9086{
a2e40bb6 9087 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837 9088 struct nl_msg *msg;
cd1d72c1 9089 int ret = -ENOBUFS;
c5121837
JM		 9090
9091 msg = nlmsg_alloc();
9092 if (!msg)
9093 return -ENOMEM;
9094
bbc706a3
JM		 9095 wpa_printf(MSG_DEBUG, "nl80211: %s[%d]: set_sta_vlan(" MACSTR
9096 ", ifname=%s[%d], vlan_id=%d)",
9097 bss->ifname, if_nametoindex(bss->ifname),
9098 MAC2STR(addr), ifname, if_nametoindex(ifname), vlan_id);
9fb04070 9099 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
c5121837
JM		 9100
9101 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 9102 if_nametoindex(bss->ifname));
c5121837 9103 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
1c766b09 9104 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN,
c5121837
JM		 9105 if_nametoindex(ifname));
9106
cd1d72c1 9107 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
9e088e74 9108 msg = NULL;
cd1d72c1
JM		 9109 if (ret < 0) {
9110 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr="
9111 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)",
9112 MAC2STR(addr), ifname, vlan_id, ret,
9113 strerror(-ret));
9114 }
c5121837 9115 nla_put_failure:
9e088e74 9116 nlmsg_free(msg);
cd1d72c1 9117 return ret;
c5121837
JM		 9118}
9119
fbbfcbac 9120
c5121837
JM		 9121static int i802_get_inact_sec(void *priv, const u8 *addr)
9122{
9123 struct hostap_sta_driver_data data;
9124 int ret;
9125
9126 data.inactive_msec = (unsigned long) -1;
9127 ret = i802_read_sta_data(priv, &data, addr);
9128 if (ret || data.inactive_msec == (unsigned long) -1)
9129 return -1;
9130 return data.inactive_msec / 1000;
9131}
9132
9133
9134static int i802_sta_clear_stats(void *priv, const u8 *addr)
9135{
9136#if 0
9137 /* TODO */
9138#endif
9139 return 0;
9140}
9141
9142
731723a5
JM		 9143static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
9144 int reason)
c5121837 9145{
a2e40bb6 9146 struct i802_bss *bss = priv;
e1bd4e19 9147 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 9148 struct ieee80211_mgmt mgmt;
9149
e1bd4e19
AT		 9150 if (drv->device_ap_sme)
9151 return wpa_driver_nl80211_sta_remove(bss, addr);
9152
c5121837
JM		 9153 memset(&mgmt, 0, sizeof(mgmt));
9154 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
9155 WLAN_FC_STYPE_DEAUTH);
9156 memcpy(mgmt.da, addr, ETH_ALEN);
731723a5
JM		 9157 memcpy(mgmt.sa, own_addr, ETH_ALEN);
9158 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
c5121837 9159 mgmt.u.deauth.reason_code = host_to_le16(reason);
a2e40bb6 9160 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
9f324b61 9161 IEEE80211_HDRLEN +
9ebce9c5
JM		 9162 sizeof(mgmt.u.deauth), 0, 0, 0, 0,
9163 0);
c5121837
JM		 9164}
9165
9166
731723a5
JM		 9167static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
9168 int reason)
c5121837 9169{
a2e40bb6 9170 struct i802_bss *bss = priv;
e1bd4e19 9171 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 9172 struct ieee80211_mgmt mgmt;
9173
e1bd4e19
AT		 9174 if (drv->device_ap_sme)
9175 return wpa_driver_nl80211_sta_remove(bss, addr);
9176
c5121837
JM		 9177 memset(&mgmt, 0, sizeof(mgmt));
9178 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
9179 WLAN_FC_STYPE_DISASSOC);
9180 memcpy(mgmt.da, addr, ETH_ALEN);
731723a5
JM		 9181 memcpy(mgmt.sa, own_addr, ETH_ALEN);
9182 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
c5121837 9183 mgmt.u.disassoc.reason_code = host_to_le16(reason);
a2e40bb6 9184 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
9f324b61 9185 IEEE80211_HDRLEN +
9ebce9c5
JM		 9186 sizeof(mgmt.u.disassoc), 0, 0, 0, 0,
9187 0);
c5121837
JM		 9188}
9189
9190
f07ead6a
JM		 9191static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
9192{
9193 int i;
9194 int *old;
9195
9196 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d",
9197 ifidx);
9198 for (i = 0; i < drv->num_if_indices; i++) {
9199 if (drv->if_indices[i] == 0) {
9200 drv->if_indices[i] = ifidx;
9201 return;
9202 }
9203 }
9204
9205 if (drv->if_indices != drv->default_if_indices)
9206 old = drv->if_indices;
9207 else
9208 old = NULL;
9209
067ffa26
JM		 9210 drv->if_indices = os_realloc_array(old, drv->num_if_indices + 1,
9211 sizeof(int));
f07ead6a
JM		 9212 if (!drv->if_indices) {
9213 if (!old)
9214 drv->if_indices = drv->default_if_indices;
9215 else
9216 drv->if_indices = old;
9217 wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
9218 "interfaces");
9219 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
9220 return;
9221 } else if (!old)
9222 os_memcpy(drv->if_indices, drv->default_if_indices,
9223 sizeof(drv->default_if_indices));
9224 drv->if_indices[drv->num_if_indices] = ifidx;
9225 drv->num_if_indices++;
9226}
9227
9228
9229static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
9230{
9231 int i;
9232
9233 for (i = 0; i < drv->num_if_indices; i++) {
9234 if (drv->if_indices[i] == ifidx) {
9235 drv->if_indices[i] = 0;
9236 break;
9237 }
9238 }
9239}
9240
9241
9242static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
9243{
9244 int i;
9245
9246 for (i = 0; i < drv->num_if_indices; i++)
9247 if (drv->if_indices[i] == ifidx)
9248 return 1;
9249
9250 return 0;
9251}
9252
9253
9254static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val,
69dd2967 9255 const char *bridge_ifname, char *ifname_wds)
f07ead6a
JM		 9256{
9257 struct i802_bss *bss = priv;
9258 struct wpa_driver_nl80211_data *drv = bss->drv;
9259 char name[IFNAMSIZ + 1];
9260
9261 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid);
69dd2967
SM		 9262 if (ifname_wds)
9263 os_strlcpy(ifname_wds, name, IFNAMSIZ + 1);
9264
f07ead6a
JM		 9265 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR
9266 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name);
9267 if (val) {
9268 if (!if_nametoindex(name)) {
9269 if (nl80211_create_iface(drv, name,
9270 NL80211_IFTYPE_AP_VLAN,
2aec4f3c
JM		 9271 bss->addr, 1, NULL, NULL, 0) <
9272 0)
f07ead6a
JM		 9273 return -1;
9274 if (bridge_ifname &&
c81eff1a
BG		 9275 linux_br_add_if(drv->global->ioctl_sock,
9276 bridge_ifname, name) < 0)
f07ead6a
JM		 9277 return -1;
9278 }
75227f3a
JM		 9279 if (linux_set_iface_flags(drv->global->ioctl_sock, name, 1)) {
9280 wpa_printf(MSG_ERROR, "nl80211: Failed to set WDS STA "
9281 "interface %s up", name);
9282 }
f07ead6a
JM		 9283 return i802_set_sta_vlan(priv, addr, name, 0);
9284 } else {
c34e618d
FF		 9285 if (bridge_ifname)
9286 linux_br_del_if(drv->global->ioctl_sock, bridge_ifname,
9287 name);
9288
f07ead6a
JM		 9289 i802_set_sta_vlan(priv, addr, bss->ifname, 0);
9290 return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN,
9291 name);
9292 }
9293}
9294
9295
9296static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
9297{
9298 struct wpa_driver_nl80211_data *drv = eloop_ctx;
9299 struct sockaddr_ll lladdr;
9300 unsigned char buf[3000];
9301 int len;
9302 socklen_t fromlen = sizeof(lladdr);
9303
9304 len = recvfrom(sock, buf, sizeof(buf), 0,
9305 (struct sockaddr *)&lladdr, &fromlen);
9306 if (len < 0) {
7ac3616d
JM		 9307 wpa_printf(MSG_ERROR, "nl80211: EAPOL recv failed: %s",
9308 strerror(errno));
f07ead6a
JM		 9309 return;
9310 }
9311
9312 if (have_ifidx(drv, lladdr.sll_ifindex))
9313 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len);
9314}
9315
9316
94627f6c 9317static int i802_check_bridge(struct wpa_driver_nl80211_data *drv,
e17a2477 9318 struct i802_bss *bss,
94627f6c
JM		 9319 const char *brname, const char *ifname)
9320{
9321 int ifindex;
9322 char in_br[IFNAMSIZ];
9323
e17a2477 9324 os_strlcpy(bss->brname, brname, IFNAMSIZ);
94627f6c
JM		 9325 ifindex = if_nametoindex(brname);
9326 if (ifindex == 0) {
9327 /*
9328 * Bridge was configured, but the bridge device does
9329 * not exist. Try to add it now.
9330 */
c81eff1a 9331 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) {
94627f6c
JM		 9332 wpa_printf(MSG_ERROR, "nl80211: Failed to add the "
9333 "bridge interface %s: %s",
9334 brname, strerror(errno));
9335 return -1;
9336 }
e17a2477 9337 bss->added_bridge = 1;
94627f6c
JM		 9338 add_ifidx(drv, if_nametoindex(brname));
9339 }
9340
9341 if (linux_br_get(in_br, ifname) == 0) {
9342 if (os_strcmp(in_br, brname) == 0)
9343 return 0; /* already in the bridge */
9344
9345 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from "
9346 "bridge %s", ifname, in_br);
c81eff1a
BG		 9347 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) <
9348 0) {
94627f6c
JM		 9349 wpa_printf(MSG_ERROR, "nl80211: Failed to "
9350 "remove interface %s from bridge "
9351 "%s: %s",
9352 ifname, brname, strerror(errno));
9353 return -1;
9354 }
9355 }
9356
9357 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s",
9358 ifname, brname);
c81eff1a 9359 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) {
94627f6c
JM		 9360 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s "
9361 "into bridge %s: %s",
9362 ifname, brname, strerror(errno));
9363 return -1;
9364 }
e17a2477 9365 bss->added_if_into_bridge = 1;
94627f6c
JM		 9366
9367 return 0;
9368}
9369
9370
92f475b4
JM		 9371static void *i802_init(struct hostapd_data *hapd,
9372 struct wpa_init_params *params)
c5121837
JM		 9373{
9374 struct wpa_driver_nl80211_data *drv;
a2e40bb6 9375 struct i802_bss *bss;
c5121837 9376 size_t i;
94627f6c
JM		 9377 char brname[IFNAMSIZ];
9378 int ifindex, br_ifindex;
9379 int br_added = 0;
c5121837 9380
0d547d5f
JM		 9381 bss = wpa_driver_nl80211_drv_init(hapd, params->ifname,
9382 params->global_priv, 1,
9383 params->bssid);
a2e40bb6 9384 if (bss == NULL)
c5121837 9385 return NULL;
c5121837 9386
a2e40bb6 9387 drv = bss->drv;
7635bfb0 9388
94627f6c
JM		 9389 if (linux_br_get(brname, params->ifname) == 0) {
9390 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s",
9391 params->ifname, brname);
9392 br_ifindex = if_nametoindex(brname);
9393 } else {
9394 brname[0] = '\0';
9395 br_ifindex = 0;
9396 }
9397
92f475b4 9398 for (i = 0; i < params->num_bridge; i++) {
94627f6c
JM		 9399 if (params->bridge[i]) {
9400 ifindex = if_nametoindex(params->bridge[i]);
9401 if (ifindex)
9402 add_ifidx(drv, ifindex);
9403 if (ifindex == br_ifindex)
9404 br_added = 1;
9405 }
c5121837 9406 }
94627f6c
JM		 9407 if (!br_added && br_ifindex &&
9408 (params->num_bridge == 0 || !params->bridge[0]))
9409 add_ifidx(drv, br_ifindex);
c5121837 9410
ad1e68e6
JM		 9411 /* start listening for EAPOL on the default AP interface */
9412 add_ifidx(drv, drv->ifindex);
9413
94627f6c 9414 if (params->num_bridge && params->bridge[0] &&
e17a2477 9415 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0)
94627f6c
JM		 9416 goto failed;
9417
ad1e68e6
JM		 9418 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE));
9419 if (drv->eapol_sock < 0) {
7ac3616d
JM		 9420 wpa_printf(MSG_ERROR, "nl80211: socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE) failed: %s",
9421 strerror(errno));
bbaf0837 9422 goto failed;
ad1e68e6
JM		 9423 }
9424
9425 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL))
9426 {
7ac3616d 9427 wpa_printf(MSG_INFO, "nl80211: Could not register read socket for eapol");
c5121837 9428 goto failed;
ad1e68e6
JM		 9429 }
9430
c81eff1a
BG		 9431 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
9432 params->own_addr))
bbaf0837 9433 goto failed;
c5121837 9434
341eebee
JB		 9435 memcpy(bss->addr, params->own_addr, ETH_ALEN);
9436
a2e40bb6 9437 return bss;
c5121837
JM		 9438
9439failed:
7635bfb0 9440 wpa_driver_nl80211_deinit(bss);
bbaf0837
JM		 9441 return NULL;
9442}
c5121837 9443
c5121837 9444
bbaf0837
JM		 9445static void i802_deinit(void *priv)
9446{
9ebce9c5
JM		 9447 struct i802_bss *bss = priv;
9448 wpa_driver_nl80211_deinit(bss);
c5121837
JM		 9449}
9450
c5121837 9451
22a7c9d7
JM		 9452static enum nl80211_iftype wpa_driver_nl80211_if_type(
9453 enum wpa_driver_if_type type)
9454{
9455 switch (type) {
9456 case WPA_IF_STATION:
9f51b113 9457 return NL80211_IFTYPE_STATION;
75bde05d
JM		 9458 case WPA_IF_P2P_CLIENT:
9459 case WPA_IF_P2P_GROUP:
9f51b113 9460 return NL80211_IFTYPE_P2P_CLIENT;
22a7c9d7
JM		 9461 case WPA_IF_AP_VLAN:
9462 return NL80211_IFTYPE_AP_VLAN;
9463 case WPA_IF_AP_BSS:
9464 return NL80211_IFTYPE_AP;
9f51b113
JB		 9465 case WPA_IF_P2P_GO:
9466 return NL80211_IFTYPE_P2P_GO;
7aad838c
NS		 9467 case WPA_IF_P2P_DEVICE:
9468 return NL80211_IFTYPE_P2P_DEVICE;
22a7c9d7
JM		 9469 }
9470 return -1;
9471}
9472
9473
482856c8
JM		 9474#ifdef CONFIG_P2P
9475
f2ed8023
JM		 9476static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr)
9477{
9478 struct wpa_driver_nl80211_data *drv;
9479 dl_list_for_each(drv, &global->interfaces,
9480 struct wpa_driver_nl80211_data, list) {
834ee56f 9481 if (os_memcmp(addr, drv->first_bss->addr, ETH_ALEN) == 0)
f2ed8023
JM		 9482 return 1;
9483 }
9484 return 0;
9485}
9486
9487
9488static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv,
9489 u8 *new_addr)
9490{
9491 unsigned int idx;
9492
9493 if (!drv->global)
9494 return -1;
9495
834ee56f 9496 os_memcpy(new_addr, drv->first_bss->addr, ETH_ALEN);
f2ed8023 9497 for (idx = 0; idx < 64; idx++) {
834ee56f 9498 new_addr[0] = drv->first_bss->addr[0] | 0x02;
f2ed8023
JM		 9499 new_addr[0] ^= idx << 2;
9500 if (!nl80211_addr_in_use(drv->global, new_addr))
9501 break;
9502 }
9503 if (idx == 64)
9504 return -1;
9505
9506 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address "
9507 MACSTR, MAC2STR(new_addr));
9508
9509 return 0;
9510}
9511
482856c8
JM		 9512#endif /* CONFIG_P2P */
9513
f2ed8023 9514
f632e483
AS		 9515struct wdev_info {
9516 u64 wdev_id;
9517 int wdev_id_set;
9518 u8 macaddr[ETH_ALEN];
9519};
9520
9521static int nl80211_wdev_handler(struct nl_msg *msg, void *arg)
e472e1b4
AS		 9522{
9523 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
9524 struct nlattr *tb[NL80211_ATTR_MAX + 1];
f632e483 9525 struct wdev_info *wi = arg;
e472e1b4
AS		 9526
9527 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
9528 genlmsg_attrlen(gnlh, 0), NULL);
9529 if (tb[NL80211_ATTR_WDEV]) {
f632e483
AS		 9530 wi->wdev_id = nla_get_u64(tb[NL80211_ATTR_WDEV]);
9531 wi->wdev_id_set = 1;
e472e1b4
AS		 9532 }
9533
9534 if (tb[NL80211_ATTR_MAC])
f632e483 9535 os_memcpy(wi->macaddr, nla_data(tb[NL80211_ATTR_MAC]),
e472e1b4
AS		 9536 ETH_ALEN);
9537
9538 return NL_SKIP;
9539}
9540
9541
7ab68865 9542static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type,
8043e725 9543 const char *ifname, const u8 *addr,
f3585c8a 9544 void *bss_ctx, void **drv_priv,
e17a2477 9545 char *force_ifname, u8 *if_addr,
2aec4f3c 9546 const char *bridge, int use_existing)
22a7c9d7 9547{
e472e1b4 9548 enum nl80211_iftype nlmode;
a2e40bb6
FF		 9549 struct i802_bss *bss = priv;
9550 struct wpa_driver_nl80211_data *drv = bss->drv;
22a7c9d7 9551 int ifidx;
2aec4f3c 9552 int added = 1;
22a7c9d7 9553
f3585c8a
JM		 9554 if (addr)
9555 os_memcpy(if_addr, addr, ETH_ALEN);
e472e1b4
AS		 9556 nlmode = wpa_driver_nl80211_if_type(type);
9557 if (nlmode == NL80211_IFTYPE_P2P_DEVICE) {
f632e483
AS		 9558 struct wdev_info p2pdev_info;
9559
9560 os_memset(&p2pdev_info, 0, sizeof(p2pdev_info));
e472e1b4 9561 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr,
f632e483 9562 0, nl80211_wdev_handler,
2aec4f3c 9563 &p2pdev_info, use_existing);
f632e483 9564 if (!p2pdev_info.wdev_id_set || ifidx != 0) {
e472e1b4
AS		 9565 wpa_printf(MSG_ERROR, "nl80211: Failed to create a P2P Device interface %s",
9566 ifname);
e472e1b4
AS		 9567 return -1;
9568 }
f632e483
AS		 9569
9570 drv->global->if_add_wdevid = p2pdev_info.wdev_id;
9571 drv->global->if_add_wdevid_set = p2pdev_info.wdev_id_set;
9572 if (!is_zero_ether_addr(p2pdev_info.macaddr))
9573 os_memcpy(if_addr, p2pdev_info.macaddr, ETH_ALEN);
9574 wpa_printf(MSG_DEBUG, "nl80211: New P2P Device interface %s (0x%llx) created",
9575 ifname,
9576 (long long unsigned int) p2pdev_info.wdev_id);
e472e1b4
AS		 9577 } else {
9578 ifidx = nl80211_create_iface(drv, ifname, nlmode, addr,
2aec4f3c
JM		 9579 0, NULL, NULL, use_existing);
9580 if (use_existing && ifidx == -ENFILE) {
9581 added = 0;
9582 ifidx = if_nametoindex(ifname);
9583 } else if (ifidx < 0) {
e472e1b4
AS		 9584 return -1;
9585 }
22a7c9d7
JM		 9586 }
9587
ab7a1add
AS		 9588 if (!addr) {
9589 if (drv->nlmode == NL80211_IFTYPE_P2P_DEVICE)
9590 os_memcpy(if_addr, bss->addr, ETH_ALEN);
9591 else if (linux_get_ifhwaddr(drv->global->ioctl_sock,
9592 bss->ifname, if_addr) < 0) {
2aec4f3c
JM		 9593 if (added)
9594 nl80211_remove_iface(drv, ifidx);
ab7a1add
AS		 9595 return -1;
9596 }
c55f774d
JM		 9597 }
9598
9599#ifdef CONFIG_P2P
9600 if (!addr &&
9601 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP ||
9602 type == WPA_IF_P2P_GO)) {
9603 /* Enforce unique P2P Interface Address */
ab7a1add 9604 u8 new_addr[ETH_ALEN];
c55f774d 9605
ab7a1add 9606 if (linux_get_ifhwaddr(drv->global->ioctl_sock, ifname,
c81eff1a 9607 new_addr) < 0) {
c55f774d
JM		 9608 nl80211_remove_iface(drv, ifidx);
9609 return -1;
9610 }
f608081c 9611 if (nl80211_addr_in_use(drv->global, new_addr)) {
c55f774d
JM		 9612 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address "
9613 "for P2P group interface");
f2ed8023 9614 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) {
c55f774d
JM		 9615 nl80211_remove_iface(drv, ifidx);
9616 return -1;
9617 }
c81eff1a 9618 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname,
c55f774d
JM		 9619 new_addr) < 0) {
9620 nl80211_remove_iface(drv, ifidx);
9621 return -1;
9622 }
c55f774d 9623 }
f67eeb5c 9624 os_memcpy(if_addr, new_addr, ETH_ALEN);
c55f774d
JM		 9625 }
9626#endif /* CONFIG_P2P */
f3585c8a 9627
22a7c9d7 9628 if (type == WPA_IF_AP_BSS) {
f5eb9da3
JM		 9629 struct i802_bss *new_bss = os_zalloc(sizeof(*new_bss));
9630 if (new_bss == NULL) {
2aec4f3c
JM		 9631 if (added)
9632 nl80211_remove_iface(drv, ifidx);
f5eb9da3
JM		 9633 return -1;
9634 }
9635
9636 if (bridge &&
9637 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) {
9638 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new "
9639 "interface %s to a bridge %s",
9640 ifname, bridge);
2aec4f3c
JM		 9641 if (added)
9642 nl80211_remove_iface(drv, ifidx);
f5eb9da3
JM		 9643 os_free(new_bss);
9644 return -1;
9645 }
9646
c81eff1a
BG		 9647 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1))
9648 {
34f2f814 9649 nl80211_remove_iface(drv, ifidx);
07179987 9650 os_free(new_bss);
22a7c9d7
JM		 9651 return -1;
9652 }
a2e40bb6 9653 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ);
341eebee 9654 os_memcpy(new_bss->addr, if_addr, ETH_ALEN);
a2e40bb6
FF		 9655 new_bss->ifindex = ifidx;
9656 new_bss->drv = drv;
834ee56f
KP		 9657 new_bss->next = drv->first_bss->next;
9658 new_bss->freq = drv->first_bss->freq;
a5e1eb20 9659 new_bss->ctx = bss_ctx;
2aec4f3c 9660 new_bss->added_if = added;
834ee56f 9661 drv->first_bss->next = new_bss;
a2e40bb6
FF		 9662 if (drv_priv)
9663 *drv_priv = new_bss;
cc7a48d1 9664 nl80211_init_bss(new_bss);
3dd1d890
YAP		 9665
9666 /* Subscribe management frames for this WPA_IF_AP_BSS */
9667 if (nl80211_setup_ap(new_bss))
9668 return -1;
22a7c9d7 9669 }
22a7c9d7 9670
ff6a158b
JM		 9671 if (drv->global)
9672 drv->global->if_add_ifindex = ifidx;
9673
22a7c9d7
JM		 9674 return 0;
9675}
9676
9677
9ebce9c5 9678static int wpa_driver_nl80211_if_remove(struct i802_bss *bss,
22a7c9d7
JM		 9679 enum wpa_driver_if_type type,
9680 const char *ifname)
9681{
a2e40bb6 9682 struct wpa_driver_nl80211_data *drv = bss->drv;
22a7c9d7
JM		 9683 int ifindex = if_nametoindex(ifname);
9684
2aec4f3c
JM		 9685 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d added_if=%d",
9686 __func__, type, ifname, ifindex, bss->added_if);
158b090c 9687 if (ifindex > 0 && (bss->added_if || bss->ifindex != ifindex))
2b72df63 9688 nl80211_remove_iface(drv, ifindex);
c34e618d 9689
c34e618d
FF		 9690 if (type != WPA_IF_AP_BSS)
9691 return 0;
9692
e17a2477 9693 if (bss->added_if_into_bridge) {
c81eff1a
BG		 9694 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname,
9695 bss->ifname) < 0)
e17a2477
JM		 9696 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
9697 "interface %s from bridge %s: %s",
9698 bss->ifname, bss->brname, strerror(errno));
9699 }
9700 if (bss->added_bridge) {
c81eff1a 9701 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0)
e17a2477
JM		 9702 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
9703 "bridge %s: %s",
9704 bss->brname, strerror(errno));
9705 }
a2e40bb6 9706
834ee56f 9707 if (bss != drv->first_bss) {
8546ea19 9708 struct i802_bss *tbss;
a2e40bb6 9709
2aec4f3c 9710 wpa_printf(MSG_DEBUG, "nl80211: Not the first BSS - remove it");
834ee56f 9711 for (tbss = drv->first_bss; tbss; tbss = tbss->next) {
8546ea19
JM		 9712 if (tbss->next == bss) {
9713 tbss->next = bss->next;
3dd1d890
YAP		 9714 /* Unsubscribe management frames */
9715 nl80211_teardown_ap(bss);
cc7a48d1 9716 nl80211_destroy_bss(bss);
8546ea19
JM		 9717 os_free(bss);
9718 bss = NULL;
9719 break;
9720 }
22a7c9d7 9721 }
8546ea19
JM		 9722 if (bss)
9723 wpa_printf(MSG_INFO, "nl80211: %s - could not find "
9724 "BSS %p in the list", __func__, bss);
390e489c 9725 } else {
2aec4f3c 9726 wpa_printf(MSG_DEBUG, "nl80211: First BSS - reassign context");
390e489c 9727 nl80211_teardown_ap(bss);
2aec4f3c
JM		 9728 if (!bss->added_if && !drv->first_bss->next)
9729 wpa_driver_nl80211_del_beacon(drv);
390e489c 9730 nl80211_destroy_bss(bss);
2aec4f3c
JM		 9731 if (!bss->added_if)
9732 i802_set_iface_flags(bss, 0);
390e489c
KP		 9733 if (drv->first_bss->next) {
9734 drv->first_bss = drv->first_bss->next;
9735 drv->ctx = drv->first_bss->ctx;
9736 os_free(bss);
9737 } else {
9738 wpa_printf(MSG_DEBUG, "nl80211: No second BSS to reassign context to");
9739 }
22a7c9d7 9740 }
22a7c9d7
JM		 9741
9742 return 0;
9743}
9744
9745
55777702
JM		 9746static int cookie_handler(struct nl_msg *msg, void *arg)
9747{
9748 struct nlattr *tb[NL80211_ATTR_MAX + 1];
9749 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
9750 u64 *cookie = arg;
9751 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
9752 genlmsg_attrlen(gnlh, 0), NULL);
9753 if (tb[NL80211_ATTR_COOKIE])
9754 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
9755 return NL_SKIP;
9756}
9757
9758
88df0ef7 9759static int nl80211_send_frame_cmd(struct i802_bss *bss,
5dfca53f
JB		 9760 unsigned int freq, unsigned int wait,
9761 const u8 *buf, size_t buf_len,
88df0ef7
JB		 9762 u64 *cookie_out, int no_cck, int no_ack,
9763 int offchanok)
9884f9cc 9764{
88df0ef7 9765 struct wpa_driver_nl80211_data *drv = bss->drv;
9884f9cc
JB		 9766 struct nl_msg *msg;
9767 u64 cookie;
9768 int ret = -1;
9769
9770 msg = nlmsg_alloc();
9771 if (!msg)
9772 return -1;
9773
cc2ada86 9774 wpa_printf(MSG_MSGDUMP, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d "
2e3e4566
JM		 9775 "no_ack=%d offchanok=%d",
9776 freq, wait, no_cck, no_ack, offchanok);
c91f796f 9777 wpa_hexdump(MSG_MSGDUMP, "CMD_FRAME", buf, buf_len);
9fb04070 9778 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME);
9884f9cc 9779
f632e483 9780 if (nl80211_set_iface_id(msg, bss) < 0)
d3aaef80 9781 goto nla_put_failure;
c91f796f
NC		 9782 if (freq)
9783 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
9db931ed
JM		 9784 if (wait)
9785 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait);
b9fd8ce8 9786 if (offchanok && (drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX))
88df0ef7 9787 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
b106173a
JM		 9788 if (no_cck)
9789 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE);
ddc53271
JM		 9790 if (no_ack)
9791 NLA_PUT_FLAG(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK);
970fa12e 9792
9884f9cc
JB		 9793 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf);
9794
9795 cookie = 0;
9796 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
9797 msg = NULL;
9798 if (ret) {
9799 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d "
a05225c8
JM		 9800 "(%s) (freq=%u wait=%u)", ret, strerror(-ret),
9801 freq, wait);
9884f9cc
JB		 9802 goto nla_put_failure;
9803 }
cc2ada86 9804 wpa_printf(MSG_MSGDUMP, "nl80211: Frame TX command accepted%s; "
ddc53271
JM		 9805 "cookie 0x%llx", no_ack ? " (no ACK)" : "",
9806 (long long unsigned int) cookie);
9884f9cc
JB		 9807
9808 if (cookie_out)
ddc53271 9809 *cookie_out = no_ack ? (u64) -1 : cookie;
9884f9cc
JB		 9810
9811nla_put_failure:
9812 nlmsg_free(msg);
9813 return ret;
9814}
9815
9816
9ebce9c5
JM		 9817static int wpa_driver_nl80211_send_action(struct i802_bss *bss,
9818 unsigned int freq,
190b9062 9819 unsigned int wait_time,
58f6fbe0
JM		 9820 const u8 *dst, const u8 *src,
9821 const u8 *bssid,
b106173a
JM		 9822 const u8 *data, size_t data_len,
9823 int no_cck)
58f6fbe0 9824{
a2e40bb6 9825 struct wpa_driver_nl80211_data *drv = bss->drv;
58f6fbe0 9826 int ret = -1;
58f6fbe0
JM		 9827 u8 *buf;
9828 struct ieee80211_hdr *hdr;
58f6fbe0 9829
5dfca53f 9830 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, "
55231068
JM		 9831 "freq=%u MHz wait=%d ms no_cck=%d)",
9832 drv->ifindex, freq, wait_time, no_cck);
58f6fbe0
JM		 9833
9834 buf = os_zalloc(24 + data_len);
9835 if (buf == NULL)
9836 return ret;
9837 os_memcpy(buf + 24, data, data_len);
9838 hdr = (struct ieee80211_hdr *) buf;
9839 hdr->frame_control =
9840 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION);
9841 os_memcpy(hdr->addr1, dst, ETH_ALEN);
9842 os_memcpy(hdr->addr2, src, ETH_ALEN);
9843 os_memcpy(hdr->addr3, bssid, ETH_ALEN);
9844
f78f2785
JM		 9845 if (is_ap_interface(drv->nlmode) &&
9846 (!(drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX) ||
9847 (int) freq == bss->freq || drv->device_ap_sme ||
9848 !drv->use_monitor))
9ebce9c5
JM		 9849 ret = wpa_driver_nl80211_send_mlme(bss, buf, 24 + data_len,
9850 0, freq, no_cck, 1,
9851 wait_time);
9884f9cc 9852 else
88df0ef7 9853 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf,
5dfca53f 9854 24 + data_len,
b106173a 9855 &drv->send_action_cookie,
88df0ef7 9856 no_cck, 0, 1);
58f6fbe0 9857
f8bf1421 9858 os_free(buf);
58f6fbe0
JM		 9859 return ret;
9860}
9861
9862
5dfca53f
JB		 9863static void wpa_driver_nl80211_send_action_cancel_wait(void *priv)
9864{
9865 struct i802_bss *bss = priv;
9866 struct wpa_driver_nl80211_data *drv = bss->drv;
9867 struct nl_msg *msg;
9868 int ret;
9869
9870 msg = nlmsg_alloc();
9871 if (!msg)
9872 return;
9873
316a9e4d
JM		 9874 wpa_printf(MSG_DEBUG, "nl80211: Cancel TX frame wait: cookie=0x%llx",
9875 (long long unsigned int) drv->send_action_cookie);
9fb04070 9876 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL);
5dfca53f 9877
7940c790
AS		 9878 if (nl80211_set_iface_id(msg, bss) < 0)
9879 goto nla_put_failure;
5dfca53f
JB		 9880 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie);
9881
9882 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
9883 msg = NULL;
9884 if (ret)
9885 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d "
9886 "(%s)", ret, strerror(-ret));
9887
9888 nla_put_failure:
9889 nlmsg_free(msg);
9890}
9891
9892
55777702
JM		 9893static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq,
9894 unsigned int duration)
9895{
a2e40bb6
FF		 9896 struct i802_bss *bss = priv;
9897 struct wpa_driver_nl80211_data *drv = bss->drv;
55777702
JM		 9898 struct nl_msg *msg;
9899 int ret;
9900 u64 cookie;
9901
9902 msg = nlmsg_alloc();
9903 if (!msg)
9904 return -1;
9905
9fb04070 9906 nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL);
55777702 9907
f632e483 9908 if (nl80211_set_iface_id(msg, bss) < 0)
d3aaef80
DS		 9909 goto nla_put_failure;
9910
55777702
JM		 9911 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
9912 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
9913
9914 cookie = 0;
9915 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
5883168a 9916 msg = NULL;
55777702
JM		 9917 if (ret == 0) {
9918 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie "
9919 "0x%llx for freq=%u MHz duration=%u",
9920 (long long unsigned int) cookie, freq, duration);
9921 drv->remain_on_chan_cookie = cookie;
531f0331 9922 drv->pending_remain_on_chan = 1;
55777702
JM		 9923 return 0;
9924 }
9925 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel "
15ed5535
JM		 9926 "(freq=%d duration=%u): %d (%s)",
9927 freq, duration, ret, strerror(-ret));
55777702 9928nla_put_failure:
5883168a 9929 nlmsg_free(msg);
55777702
JM		 9930 return -1;
9931}
9932
9933
9934static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv)
9935{
a2e40bb6
FF		 9936 struct i802_bss *bss = priv;
9937 struct wpa_driver_nl80211_data *drv = bss->drv;
55777702
JM		 9938 struct nl_msg *msg;
9939 int ret;
9940
9941 if (!drv->pending_remain_on_chan) {
9942 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel "
9943 "to cancel");
9944 return -1;
9945 }
9946
9947 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie "
9948 "0x%llx",
9949 (long long unsigned int) drv->remain_on_chan_cookie);
9950
9951 msg = nlmsg_alloc();
9952 if (!msg)
9953 return -1;
9954
9fb04070 9955 nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL);
55777702 9956
f632e483 9957 if (nl80211_set_iface_id(msg, bss) < 0)
d3aaef80
DS		 9958 goto nla_put_failure;
9959
55777702
JM		 9960 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie);
9961
9962 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5883168a 9963 msg = NULL;
55777702
JM		 9964 if (ret == 0)
9965 return 0;
9966 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: "
9967 "%d (%s)", ret, strerror(-ret));
9968nla_put_failure:
5883168a 9969 nlmsg_free(msg);
55777702
JM		 9970 return -1;
9971}
9972
9973
9ebce9c5 9974static int wpa_driver_nl80211_probe_req_report(struct i802_bss *bss, int report)
504e905c 9975{
a2e40bb6 9976 struct wpa_driver_nl80211_data *drv = bss->drv;
504e905c 9977
5582a5d1 9978 if (!report) {
0d891981
JM		 9979 if (bss->nl_preq && drv->device_ap_sme &&
9980 is_ap_interface(drv->nlmode)) {
9981 /*
9982 * Do not disable Probe Request reporting that was
9983 * enabled in nl80211_setup_ap().
9984 */
9985 wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of "
9986 "Probe Request reporting nl_preq=%p while "
9987 "in AP mode", bss->nl_preq);
9988 } else if (bss->nl_preq) {
36488c05
JM		 9989 wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request "
9990 "reporting nl_preq=%p", bss->nl_preq);
5f65e9f7 9991 nl80211_destroy_eloop_handle(&bss->nl_preq);
5582a5d1
JB		 9992 }
9993 return 0;
9994 }
9995
481234cf 9996 if (bss->nl_preq) {
5582a5d1 9997 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting "
36488c05 9998 "already on! nl_preq=%p", bss->nl_preq);
5582a5d1
JB		 9999 return 0;
10000 }
10001
481234cf
JM		 10002 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq");
10003 if (bss->nl_preq == NULL)
5582a5d1 10004 return -1;
36488c05
JM		 10005 wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request "
10006 "reporting nl_preq=%p", bss->nl_preq);
5582a5d1 10007
481234cf 10008 if (nl80211_register_frame(bss, bss->nl_preq,
5582a5d1
JB		 10009 (WLAN_FC_TYPE_MGMT << 2) |
10010 (WLAN_FC_STYPE_PROBE_REQ << 4),
a92dfde8
JB		 10011 NULL, 0) < 0)
10012 goto out_err;
5582a5d1 10013
5f65e9f7
JB		 10014 nl80211_register_eloop_read(&bss->nl_preq,
10015 wpa_driver_nl80211_event_receive,
10016 bss->nl_cb);
5582a5d1 10017
504e905c 10018 return 0;
5582a5d1 10019
a92dfde8 10020 out_err:
221a59c9 10021 nl_destroy_handles(&bss->nl_preq);
5582a5d1 10022 return -1;
504e905c
JM		 10023}
10024
10025
4e5cb1a3
JM		 10026static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
10027 int ifindex, int disabled)
10028{
10029 struct nl_msg *msg;
10030 struct nlattr *bands, *band;
10031 int ret;
10032
10033 msg = nlmsg_alloc();
10034 if (!msg)
10035 return -1;
10036
9fb04070 10037 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK);
4e5cb1a3
JM		 10038 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
10039
10040 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES);
10041 if (!bands)
10042 goto nla_put_failure;
10043
10044 /*
10045 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything
10046 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS
10047 * rates. All 5 GHz rates are left enabled.
10048 */
10049 band = nla_nest_start(msg, NL80211_BAND_2GHZ);
10050 if (!band)
10051 goto nla_put_failure;
1dea5882
JM		 10052 if (disabled) {
10053 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8,
10054 "\x0c\x12\x18\x24\x30\x48\x60\x6c");
10055 }
4e5cb1a3
JM		 10056 nla_nest_end(msg, band);
10057
10058 nla_nest_end(msg, bands);
10059
10060 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
10061 msg = NULL;
10062 if (ret) {
10063 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d "
10064 "(%s)", ret, strerror(-ret));
1d0c6fb1
JM		 10065 } else
10066 drv->disabled_11b_rates = disabled;
4e5cb1a3
JM		 10067
10068 return ret;
10069
10070nla_put_failure:
10071 nlmsg_free(msg);
10072 return -1;
10073}
10074
10075
af473088
JM		 10076static int wpa_driver_nl80211_deinit_ap(void *priv)
10077{
a2e40bb6
FF		 10078 struct i802_bss *bss = priv;
10079 struct wpa_driver_nl80211_data *drv = bss->drv;
b1f625e0 10080 if (!is_ap_interface(drv->nlmode))
af473088
JM		 10081 return -1;
10082 wpa_driver_nl80211_del_beacon(drv);
60b13c20
IP		 10083
10084 /*
10085 * If the P2P GO interface was dynamically added, then it is
10086 * possible that the interface change to station is not possible.
10087 */
10088 if (drv->nlmode == NL80211_IFTYPE_P2P_GO && bss->if_dynamic)
10089 return 0;
10090
b1f625e0 10091 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION);
af473088
JM		 10092}
10093
10094
695c7038
SW		 10095static int wpa_driver_nl80211_stop_ap(void *priv)
10096{
10097 struct i802_bss *bss = priv;
10098 struct wpa_driver_nl80211_data *drv = bss->drv;
10099 if (!is_ap_interface(drv->nlmode))
10100 return -1;
10101 wpa_driver_nl80211_del_beacon(drv);
10102 bss->beacon_set = 0;
10103 return 0;
10104}
10105
10106
3c29244e
EP		 10107static int wpa_driver_nl80211_deinit_p2p_cli(void *priv)
10108{
10109 struct i802_bss *bss = priv;
10110 struct wpa_driver_nl80211_data *drv = bss->drv;
10111 if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT)
10112 return -1;
60b13c20
IP		 10113
10114 /*
10115 * If the P2P Client interface was dynamically added, then it is
10116 * possible that the interface change to station is not possible.
10117 */
10118 if (bss->if_dynamic)
10119 return 0;
10120
3c29244e
EP		 10121 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION);
10122}
10123
10124
207ef3fb
JM		 10125static void wpa_driver_nl80211_resume(void *priv)
10126{
a2e40bb6 10127 struct i802_bss *bss = priv;
91724d6f
AS		 10128
10129 if (i802_set_iface_flags(bss, 1))
10130 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on resume event");
207ef3fb
JM		 10131}
10132
10133
7b90c16a
JM		 10134static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap,
10135 const u8 *ies, size_t ies_len)
10136{
10137 struct i802_bss *bss = priv;
10138 struct wpa_driver_nl80211_data *drv = bss->drv;
10139 int ret;
10140 u8 *data, *pos;
10141 size_t data_len;
341eebee 10142 const u8 *own_addr = bss->addr;
7b90c16a
JM		 10143
10144 if (action != 1) {
10145 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action "
10146 "action %d", action);
10147 return -1;
10148 }
10149
10150 /*
10151 * Action frame payload:
10152 * Category[1] = 6 (Fast BSS Transition)
10153 * Action[1] = 1 (Fast BSS Transition Request)
10154 * STA Address
10155 * Target AP Address
10156 * FT IEs
10157 */
10158
73fc617d
JM		 10159 data_len = 2 + 2 * ETH_ALEN + ies_len;
10160 data = os_malloc(data_len);
7b90c16a
JM		 10161 if (data == NULL)
10162 return -1;
10163 pos = data;
10164 *pos++ = 0x06; /* FT Action category */
10165 *pos++ = action;
10166 os_memcpy(pos, own_addr, ETH_ALEN);
10167 pos += ETH_ALEN;
10168 os_memcpy(pos, target_ap, ETH_ALEN);
10169 pos += ETH_ALEN;
10170 os_memcpy(pos, ies, ies_len);
10171
190b9062
JB		 10172 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0,
10173 drv->bssid, own_addr, drv->bssid,
b106173a 10174 data, data_len, 0);
7b90c16a
JM		 10175 os_free(data);
10176
10177 return ret;
10178}
10179
10180
b625473c
JM		 10181static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis)
10182{
10183 struct i802_bss *bss = priv;
10184 struct wpa_driver_nl80211_data *drv = bss->drv;
8970bae8
JB		 10185 struct nl_msg *msg;
10186 struct nlattr *cqm;
f0494d0f 10187 int ret = -1;
b625473c
JM		 10188
10189 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d "
10190 "hysteresis=%d", threshold, hysteresis);
10191
10192 msg = nlmsg_alloc();
10193 if (!msg)
10194 return -1;
10195
9fb04070 10196 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM);
b625473c
JM		 10197
10198 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
10199
8970bae8 10200 cqm = nla_nest_start(msg, NL80211_ATTR_CQM);
b625473c 10201 if (cqm == NULL)
21270bb4 10202 goto nla_put_failure;
b625473c 10203
8970bae8
JB		 10204 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THOLD, threshold);
10205 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_HYST, hysteresis);
10206 nla_nest_end(msg, cqm);
21270bb4 10207
f0494d0f 10208 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
b625473c
JM		 10209 msg = NULL;
10210
10211nla_put_failure:
b625473c 10212 nlmsg_free(msg);
f0494d0f 10213 return ret;
b625473c
JM		 10214}
10215
10216
2cc8d8f4
AO		 10217static int get_channel_width(struct nl_msg *msg, void *arg)
10218{
10219 struct nlattr *tb[NL80211_ATTR_MAX + 1];
10220 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
10221 struct wpa_signal_info *sig_change = arg;
10222
10223 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
10224 genlmsg_attrlen(gnlh, 0), NULL);
10225
10226 sig_change->center_frq1 = -1;
10227 sig_change->center_frq2 = -1;
10228 sig_change->chanwidth = CHAN_WIDTH_UNKNOWN;
10229
10230 if (tb[NL80211_ATTR_CHANNEL_WIDTH]) {
10231 sig_change->chanwidth = convert2width(
10232 nla_get_u32(tb[NL80211_ATTR_CHANNEL_WIDTH]));
10233 if (tb[NL80211_ATTR_CENTER_FREQ1])
10234 sig_change->center_frq1 =
10235 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ1]);
10236 if (tb[NL80211_ATTR_CENTER_FREQ2])
10237 sig_change->center_frq2 =
10238 nla_get_u32(tb[NL80211_ATTR_CENTER_FREQ2]);
10239 }
10240
10241 return NL_SKIP;
10242}
10243
10244
10245static int nl80211_get_channel_width(struct wpa_driver_nl80211_data *drv,
10246 struct wpa_signal_info *sig)
10247{
10248 struct nl_msg *msg;
10249
10250 msg = nlmsg_alloc();
10251 if (!msg)
10252 return -ENOMEM;
10253
10254 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_INTERFACE);
10255 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
10256
10257 return send_and_recv_msgs(drv, msg, get_channel_width, sig);
10258
10259nla_put_failure:
10260 nlmsg_free(msg);
10261 return -ENOBUFS;
10262}
10263
10264
1c5c7273
PS		 10265static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si)
10266{
10267 struct i802_bss *bss = priv;
10268 struct wpa_driver_nl80211_data *drv = bss->drv;
10269 int res;
10270
10271 os_memset(si, 0, sizeof(*si));
10272 res = nl80211_get_link_signal(drv, si);
10273 if (res != 0)
10274 return res;
10275
2cc8d8f4
AO		 10276 res = nl80211_get_channel_width(drv, si);
10277 if (res != 0)
10278 return res;
10279
1c5c7273
PS		 10280 return nl80211_get_link_noise(drv, si);
10281}
10282
10283
57ebba59
JJ		 10284static int wpa_driver_nl80211_shared_freq(void *priv)
10285{
10286 struct i802_bss *bss = priv;
10287 struct wpa_driver_nl80211_data *drv = bss->drv;
10288 struct wpa_driver_nl80211_data *driver;
10289 int freq = 0;
10290
10291 /*
10292 * If the same PHY is in connected state with some other interface,
10293 * then retrieve the assoc freq.
10294 */
10295 wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s",
10296 drv->phyname);
10297
10298 dl_list_for_each(driver, &drv->global->interfaces,
10299 struct wpa_driver_nl80211_data, list) {
10300 if (drv == driver ||
10301 os_strcmp(drv->phyname, driver->phyname) != 0 ||
10302 !driver->associated)
10303 continue;
10304
10305 wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s "
10306 MACSTR,
834ee56f
KP		 10307 driver->phyname, driver->first_bss->ifname,
10308 MAC2STR(driver->first_bss->addr));
d3bd0f05 10309 if (is_ap_interface(driver->nlmode))
834ee56f 10310 freq = driver->first_bss->freq;
d3bd0f05
JJ		 10311 else
10312 freq = nl80211_get_assoc_freq(driver);
57ebba59
JJ		 10313 wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d",
10314 drv->phyname, freq);
10315 }
10316
10317 if (!freq)
10318 wpa_printf(MSG_DEBUG, "nl80211: No shared interface for "
10319 "PHY (%s) in associated state", drv->phyname);
10320
10321 return freq;
10322}
10323
10324
b91ab76e
JM		 10325static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len,
10326 int encrypt)
10327{
10328 struct i802_bss *bss = priv;
55231068
JM		 10329 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0,
10330 0, 0, 0, 0);
b91ab76e
JM		 10331}
10332
10333
c55f774d
JM		 10334static int nl80211_set_param(void *priv, const char *param)
10335{
c55f774d
JM		 10336 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param);
10337 if (param == NULL)
10338 return 0;
10339
10340#ifdef CONFIG_P2P
10341 if (os_strstr(param, "use_p2p_group_interface=1")) {
482856c8
JM		 10342 struct i802_bss *bss = priv;
10343 struct wpa_driver_nl80211_data *drv = bss->drv;
10344
c55f774d
JM		 10345 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
10346 "interface");
10347 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
10348 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
10349 }
851b0c55
JM		 10350
10351 if (os_strstr(param, "p2p_device=1")) {
10352 struct i802_bss *bss = priv;
10353 struct wpa_driver_nl80211_data *drv = bss->drv;
10354 drv->allow_p2p_device = 1;
10355 }
c55f774d
JM		 10356#endif /* CONFIG_P2P */
10357
10358 return 0;
10359}
10360
10361
f2ed8023
JM		 10362static void * nl80211_global_init(void)
10363{
10364 struct nl80211_global *global;
36d84860
BG		 10365 struct netlink_config *cfg;
10366
f2ed8023
JM		 10367 global = os_zalloc(sizeof(*global));
10368 if (global == NULL)
10369 return NULL;
c81eff1a 10370 global->ioctl_sock = -1;
f2ed8023 10371 dl_list_init(&global->interfaces);
ff6a158b 10372 global->if_add_ifindex = -1;
36d84860
BG		 10373
10374 cfg = os_zalloc(sizeof(*cfg));
10375 if (cfg == NULL)
10376 goto err;
10377
10378 cfg->ctx = global;
10379 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink;
10380 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink;
10381 global->netlink = netlink_init(cfg);
10382 if (global->netlink == NULL) {
10383 os_free(cfg);
10384 goto err;
10385 }
10386
2a7b66f5
BG		 10387 if (wpa_driver_nl80211_init_nl_global(global) < 0)
10388 goto err;
10389
c81eff1a
BG		 10390 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
10391 if (global->ioctl_sock < 0) {
7ac3616d
JM		 10392 wpa_printf(MSG_ERROR, "nl80211: socket(PF_INET,SOCK_DGRAM) failed: %s",
10393 strerror(errno));
c81eff1a
BG		 10394 goto err;
10395 }
10396
f2ed8023 10397 return global;
36d84860
BG		 10398
10399err:
10400 nl80211_global_deinit(global);
10401 return NULL;
f2ed8023
JM		 10402}
10403
10404
10405static void nl80211_global_deinit(void *priv)
10406{
10407 struct nl80211_global *global = priv;
10408 if (global == NULL)
10409 return;
10410 if (!dl_list_empty(&global->interfaces)) {
10411 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at "
10412 "nl80211_global_deinit",
10413 dl_list_len(&global->interfaces));
10414 }
36d84860
BG		 10415
10416 if (global->netlink)
10417 netlink_deinit(global->netlink);
10418
276e2d67
BG		 10419 nl_destroy_handles(&global->nl);
10420
5f65e9f7
JB		 10421 if (global->nl_event)
10422 nl80211_destroy_eloop_handle(&global->nl_event);
d6c9aab8
JB		 10423
10424 nl_cb_put(global->nl_cb);
2a7b66f5 10425
c81eff1a
BG		 10426 if (global->ioctl_sock >= 0)
10427 close(global->ioctl_sock);
10428
f2ed8023
JM		 10429 os_free(global);
10430}
10431
10432
6859f1cb
BG		 10433static const char * nl80211_get_radio_name(void *priv)
10434{
10435 struct i802_bss *bss = priv;
10436 struct wpa_driver_nl80211_data *drv = bss->drv;
10437 return drv->phyname;
10438}
10439
10440
a6efc65d
JM		 10441static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid,
10442 const u8 *pmkid)
10443{
10444 struct nl_msg *msg;
10445
10446 msg = nlmsg_alloc();
10447 if (!msg)
10448 return -ENOMEM;
10449
9fb04070 10450 nl80211_cmd(bss->drv, msg, 0, cmd);
a6efc65d
JM		 10451
10452 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
10453 if (pmkid)
10454 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid);
10455 if (bssid)
10456 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
10457
10458 return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
10459 nla_put_failure:
9e088e74 10460 nlmsg_free(msg);
a6efc65d
JM		 10461 return -ENOBUFS;
10462}
10463
10464
10465static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid)
10466{
10467 struct i802_bss *bss = priv;
10468 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid));
10469 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid);
10470}
10471
10472
10473static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid)
10474{
10475 struct i802_bss *bss = priv;
10476 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR,
10477 MAC2STR(bssid));
10478 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid);
10479}
10480
10481
10482static int nl80211_flush_pmkid(void *priv)
10483{
10484 struct i802_bss *bss = priv;
10485 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs");
10486 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL);
10487}
10488
10489
0185007c
MK		 10490static void clean_survey_results(struct survey_results *survey_results)
10491{
10492 struct freq_survey *survey, *tmp;
10493
10494 if (dl_list_empty(&survey_results->survey_list))
10495 return;
10496
10497 dl_list_for_each_safe(survey, tmp, &survey_results->survey_list,
10498 struct freq_survey, list) {
10499 dl_list_del(&survey->list);
10500 os_free(survey);
10501 }
10502}
10503
10504
10505static void add_survey(struct nlattr **sinfo, u32 ifidx,
10506 struct dl_list *survey_list)
10507{
10508 struct freq_survey *survey;
10509
10510 survey = os_zalloc(sizeof(struct freq_survey));
10511 if (!survey)
10512 return;
10513
10514 survey->ifidx = ifidx;
10515 survey->freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]);
10516 survey->filled = 0;
10517
10518 if (sinfo[NL80211_SURVEY_INFO_NOISE]) {
10519 survey->nf = (int8_t)
10520 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
10521 survey->filled |= SURVEY_HAS_NF;
10522 }
10523
10524 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]) {
10525 survey->channel_time =
10526 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]);
10527 survey->filled |= SURVEY_HAS_CHAN_TIME;
10528 }
10529
10530 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]) {
10531 survey->channel_time_busy =
10532 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]);
10533 survey->filled |= SURVEY_HAS_CHAN_TIME_BUSY;
10534 }
10535
10536 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]) {
10537 survey->channel_time_rx =
10538 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]);
10539 survey->filled |= SURVEY_HAS_CHAN_TIME_RX;
10540 }
10541
10542 if (sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]) {
10543 survey->channel_time_tx =
10544 nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]);
10545 survey->filled |= SURVEY_HAS_CHAN_TIME_TX;
10546 }
10547
10548 wpa_printf(MSG_DEBUG, "nl80211: Freq survey dump event (freq=%d MHz noise=%d channel_time=%ld busy_time=%ld tx_time=%ld rx_time=%ld filled=%04x)",
10549 survey->freq,
10550 survey->nf,
10551 (unsigned long int) survey->channel_time,
10552 (unsigned long int) survey->channel_time_busy,
10553 (unsigned long int) survey->channel_time_tx,
10554 (unsigned long int) survey->channel_time_rx,
10555 survey->filled);
10556
10557 dl_list_add_tail(survey_list, &survey->list);
10558}
10559
10560
10561static int check_survey_ok(struct nlattr **sinfo, u32 surveyed_freq,
10562 unsigned int freq_filter)
10563{
10564 if (!freq_filter)
10565 return 1;
10566
10567 return freq_filter == surveyed_freq;
10568}
10569
10570
10571static int survey_handler(struct nl_msg *msg, void *arg)
10572{
10573 struct nlattr *tb[NL80211_ATTR_MAX + 1];
10574 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
10575 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
10576 struct survey_results *survey_results;
10577 u32 surveyed_freq = 0;
10578 u32 ifidx;
10579
10580 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
10581 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
10582 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
10583 };
10584
10585 survey_results = (struct survey_results *) arg;
10586
10587 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
10588 genlmsg_attrlen(gnlh, 0), NULL);
10589
10590 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
10591
10592 if (!tb[NL80211_ATTR_SURVEY_INFO])
10593 return NL_SKIP;
10594
10595 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
10596 tb[NL80211_ATTR_SURVEY_INFO],
10597 survey_policy))
10598 return NL_SKIP;
10599
10600 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY]) {
10601 wpa_printf(MSG_ERROR, "nl80211: Invalid survey data");
10602 return NL_SKIP;
10603 }
10604
10605 surveyed_freq = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]);
10606
10607 if (!check_survey_ok(sinfo, surveyed_freq,
10608 survey_results->freq_filter))
10609 return NL_SKIP;
10610
10611 if (survey_results->freq_filter &&
10612 survey_results->freq_filter != surveyed_freq) {
10613 wpa_printf(MSG_EXCESSIVE, "nl80211: Ignoring survey data for freq %d MHz",
10614 surveyed_freq);
10615 return NL_SKIP;
10616 }
10617
10618 add_survey(sinfo, ifidx, &survey_results->survey_list);
10619
10620 return NL_SKIP;
10621}
10622
10623
10624static int wpa_driver_nl80211_get_survey(void *priv, unsigned int freq)
10625{
10626 struct i802_bss *bss = priv;
10627 struct wpa_driver_nl80211_data *drv = bss->drv;
10628 struct nl_msg *msg;
10629 int err = -ENOBUFS;
10630 union wpa_event_data data;
10631 struct survey_results *survey_results;
10632
10633 os_memset(&data, 0, sizeof(data));
10634 survey_results = &data.survey_results;
10635
10636 dl_list_init(&survey_results->survey_list);
10637
10638 msg = nlmsg_alloc();
10639 if (!msg)
10640 goto nla_put_failure;
10641
10642 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
10643
10644 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
10645
10646 if (freq)
10647 data.survey_results.freq_filter = freq;
10648
10649 do {
10650 wpa_printf(MSG_DEBUG, "nl80211: Fetch survey data");
10651 err = send_and_recv_msgs(drv, msg, survey_handler,
10652 survey_results);
10653 } while (err > 0);
10654
10655 if (err) {
10656 wpa_printf(MSG_ERROR, "nl80211: Failed to process survey data");
10657 goto out_clean;
10658 }
10659
10660 wpa_supplicant_event(drv->ctx, EVENT_SURVEY, &data);
10661
10662out_clean:
10663 clean_survey_results(survey_results);
10664nla_put_failure:
10665 return err;
10666}
10667
10668
b14a210c
JB		 10669static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck,
10670 const u8 *replay_ctr)
10671{
10672 struct i802_bss *bss = priv;
10673 struct wpa_driver_nl80211_data *drv = bss->drv;
10674 struct nlattr *replay_nested;
10675 struct nl_msg *msg;
10676
10677 msg = nlmsg_alloc();
10678 if (!msg)
10679 return;
10680
9fb04070 10681 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
b14a210c
JB		 10682
10683 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
10684
10685 replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
10686 if (!replay_nested)
10687 goto nla_put_failure;
10688
10689 NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek);
10690 NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck);
10691 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN,
10692 replay_ctr);
10693
10694 nla_nest_end(msg, replay_nested);
10695
10696 send_and_recv_msgs(drv, msg, NULL, NULL);
10697 return;
10698 nla_put_failure:
10699 nlmsg_free(msg);
10700}
10701
10702
39718852
JB		 10703static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr,
10704 const u8 *addr, int qos)
bcf24348 10705{
39718852
JB		 10706 /* send data frame to poll STA and check whether
10707 * this frame is ACKed */
bcf24348
JB		 10708 struct {
10709 struct ieee80211_hdr hdr;
10710 u16 qos_ctl;
10711 } STRUCT_PACKED nulldata;
10712 size_t size;
10713
10714 /* Send data frame to poll STA and check whether this frame is ACKed */
10715
10716 os_memset(&nulldata, 0, sizeof(nulldata));
10717
10718 if (qos) {
10719 nulldata.hdr.frame_control =
10720 IEEE80211_FC(WLAN_FC_TYPE_DATA,
10721 WLAN_FC_STYPE_QOS_NULL);
10722 size = sizeof(nulldata);
10723 } else {
10724 nulldata.hdr.frame_control =
10725 IEEE80211_FC(WLAN_FC_TYPE_DATA,
10726 WLAN_FC_STYPE_NULLFUNC);
10727 size = sizeof(struct ieee80211_hdr);
10728 }
10729
10730 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS);
10731 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN);
10732 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
10733 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
10734
9ebce9c5
JM		 10735 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0, 0, 0,
10736 0, 0) < 0)
bcf24348
JB		 10737 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to "
10738 "send poll frame");
10739}
10740
39718852
JB		 10741static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr,
10742 int qos)
10743{
10744 struct i802_bss *bss = priv;
10745 struct wpa_driver_nl80211_data *drv = bss->drv;
10746 struct nl_msg *msg;
10747
10748 if (!drv->poll_command_supported) {
10749 nl80211_send_null_frame(bss, own_addr, addr, qos);
10750 return;
10751 }
10752
10753 msg = nlmsg_alloc();
10754 if (!msg)
10755 return;
10756
10757 nl80211_cmd(drv, msg, 0, NL80211_CMD_PROBE_CLIENT);
10758
10759 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
10760 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
10761
10762 send_and_recv_msgs(drv, msg, NULL, NULL);
10763 return;
10764 nla_put_failure:
10765 nlmsg_free(msg);
10766}
10767
bcf24348 10768
29f338af
JM		 10769static int nl80211_set_power_save(struct i802_bss *bss, int enabled)
10770{
10771 struct nl_msg *msg;
10772
10773 msg = nlmsg_alloc();
10774 if (!msg)
10775 return -ENOMEM;
10776
10777 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_SET_POWER_SAVE);
10778 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
10779 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE,
10780 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED);
10781 return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
10782nla_put_failure:
10783 nlmsg_free(msg);
10784 return -ENOBUFS;
10785}
10786
10787
10788static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps,
10789 int ctwindow)
10790{
10791 struct i802_bss *bss = priv;
10792
10793 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d "
10794 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow);
10795
0de38036
JM		 10796 if (opp_ps != -1 || ctwindow != -1) {
10797#ifdef ANDROID_P2P
10798 wpa_driver_set_p2p_ps(priv, legacy_ps, opp_ps, ctwindow);
10799#else /* ANDROID_P2P */
29f338af 10800 return -1; /* Not yet supported */
0de38036
JM		 10801#endif /* ANDROID_P2P */
10802 }
29f338af
JM		 10803
10804 if (legacy_ps == -1)
10805 return 0;
10806 if (legacy_ps != 0 && legacy_ps != 1)
10807 return -1; /* Not yet supported */
10808
10809 return nl80211_set_power_save(bss, legacy_ps);
10810}
10811
10812
04e8003c
JD		 10813static int nl80211_start_radar_detection(void *priv,
10814 struct hostapd_freq_params *freq)
f90e9c1c
SW		 10815{
10816 struct i802_bss *bss = priv;
10817 struct wpa_driver_nl80211_data *drv = bss->drv;
10818 struct nl_msg *msg;
10819 int ret;
10820
04e8003c
JD		 10821 wpa_printf(MSG_DEBUG, "nl80211: Start radar detection (CAC) %d MHz (ht_enabled=%d, vht_enabled=%d, bandwidth=%d MHz, cf1=%d MHz, cf2=%d MHz)",
10822 freq->freq, freq->ht_enabled, freq->vht_enabled,
10823 freq->bandwidth, freq->center_freq1, freq->center_freq2);
10824
f90e9c1c
SW		 10825 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_RADAR)) {
10826 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support radar "
10827 "detection");
10828 return -1;
10829 }
10830
10831 msg = nlmsg_alloc();
10832 if (!msg)
10833 return -1;
10834
10835 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_RADAR_DETECT);
10836 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
04e8003c 10837 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq);
f90e9c1c 10838
04e8003c
JD		 10839 if (freq->vht_enabled) {
10840 switch (freq->bandwidth) {
10841 case 20:
10842 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
10843 NL80211_CHAN_WIDTH_20);
10844 break;
10845 case 40:
10846 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
10847 NL80211_CHAN_WIDTH_40);
10848 break;
10849 case 80:
10850 if (freq->center_freq2)
10851 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
10852 NL80211_CHAN_WIDTH_80P80);
10853 else
10854 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
10855 NL80211_CHAN_WIDTH_80);
10856 break;
10857 case 160:
10858 NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
10859 NL80211_CHAN_WIDTH_160);
10860 break;
10861 default:
10862 return -1;
10863 }
10864 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1, freq->center_freq1);
10865 if (freq->center_freq2)
10866 NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ2,
10867 freq->center_freq2);
10868 } else if (freq->ht_enabled) {
10869 switch (freq->sec_channel_offset) {
10870 case -1:
10871 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
10872 NL80211_CHAN_HT40MINUS);
10873 break;
10874 case 1:
10875 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
10876 NL80211_CHAN_HT40PLUS);
10877 break;
10878 default:
10879 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
10880 NL80211_CHAN_HT20);
10881 break;
10882 }
10883 }
f90e9c1c
SW		 10884
10885 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
10886 if (ret == 0)
10887 return 0;
10888 wpa_printf(MSG_DEBUG, "nl80211: Failed to start radar detection: "
10889 "%d (%s)", ret, strerror(-ret));
10890nla_put_failure:
10891 return -1;
10892}
10893
03ea1786
AN		 10894#ifdef CONFIG_TDLS
10895
10896static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code,
10897 u8 dialog_token, u16 status_code,
10898 const u8 *buf, size_t len)
10899{
10900 struct i802_bss *bss = priv;
10901 struct wpa_driver_nl80211_data *drv = bss->drv;
10902 struct nl_msg *msg;
10903
10904 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
10905 return -EOPNOTSUPP;
10906
10907 if (!dst)
10908 return -EINVAL;
10909
10910 msg = nlmsg_alloc();
10911 if (!msg)
10912 return -ENOMEM;
10913
10914 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT);
10915 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
10916 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
10917 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code);
10918 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token);
10919 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code);
10920 NLA_PUT(msg, NL80211_ATTR_IE, len, buf);
10921
10922 return send_and_recv_msgs(drv, msg, NULL, NULL);
10923
10924nla_put_failure:
10925 nlmsg_free(msg);
10926 return -ENOBUFS;
10927}
10928
10929
10930static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer)
10931{
10932 struct i802_bss *bss = priv;
10933 struct wpa_driver_nl80211_data *drv = bss->drv;
10934 struct nl_msg *msg;
10935 enum nl80211_tdls_operation nl80211_oper;
10936
10937 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
10938 return -EOPNOTSUPP;
10939
10940 switch (oper) {
10941 case TDLS_DISCOVERY_REQ:
10942 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ;
10943 break;
10944 case TDLS_SETUP:
10945 nl80211_oper = NL80211_TDLS_SETUP;
10946 break;
10947 case TDLS_TEARDOWN:
10948 nl80211_oper = NL80211_TDLS_TEARDOWN;
10949 break;
10950 case TDLS_ENABLE_LINK:
10951 nl80211_oper = NL80211_TDLS_ENABLE_LINK;
10952 break;
10953 case TDLS_DISABLE_LINK:
10954 nl80211_oper = NL80211_TDLS_DISABLE_LINK;
10955 break;
10956 case TDLS_ENABLE:
10957 return 0;
10958 case TDLS_DISABLE:
10959 return 0;
10960 default:
10961 return -EINVAL;
10962 }
10963
10964 msg = nlmsg_alloc();
10965 if (!msg)
10966 return -ENOMEM;
10967
10968 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER);
10969 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper);
10970 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
10971 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
10972
10973 return send_and_recv_msgs(drv, msg, NULL, NULL);
10974
10975nla_put_failure:
10976 nlmsg_free(msg);
10977 return -ENOBUFS;
10978}
10979
10980#endif /* CONFIG TDLS */
10981
10982
216eede8
DS		 10983#ifdef ANDROID
10984
10985typedef struct android_wifi_priv_cmd {
10986 char *buf;
10987 int used_len;
10988 int total_len;
10989} android_wifi_priv_cmd;
10990
10991static int drv_errors = 0;
10992
10993static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv)
10994{
10995 drv_errors++;
10996 if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) {
10997 drv_errors = 0;
10998 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED");
10999 }
11000}
11001
11002
11003static int android_priv_cmd(struct i802_bss *bss, const char *cmd)
11004{
11005 struct wpa_driver_nl80211_data *drv = bss->drv;
11006 struct ifreq ifr;
11007 android_wifi_priv_cmd priv_cmd;
11008 char buf[MAX_DRV_CMD_SIZE];
11009 int ret;
11010
11011 os_memset(&ifr, 0, sizeof(ifr));
11012 os_memset(&priv_cmd, 0, sizeof(priv_cmd));
11013 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ);
11014
11015 os_memset(buf, 0, sizeof(buf));
11016 os_strlcpy(buf, cmd, sizeof(buf));
11017
11018 priv_cmd.buf = buf;
11019 priv_cmd.used_len = sizeof(buf);
11020 priv_cmd.total_len = sizeof(buf);
11021 ifr.ifr_data = &priv_cmd;
11022
11023 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr);
11024 if (ret < 0) {
11025 wpa_printf(MSG_ERROR, "%s: failed to issue private commands",
11026 __func__);
11027 wpa_driver_send_hang_msg(drv);
11028 return ret;
11029 }
11030
11031 drv_errors = 0;
11032 return 0;
11033}
11034
11035
11036static int android_pno_start(struct i802_bss *bss,
11037 struct wpa_driver_scan_params *params)
11038{
11039 struct wpa_driver_nl80211_data *drv = bss->drv;
11040 struct ifreq ifr;
11041 android_wifi_priv_cmd priv_cmd;
11042 int ret = 0, i = 0, bp;
11043 char buf[WEXT_PNO_MAX_COMMAND_SIZE];
11044
11045 bp = WEXT_PNOSETUP_HEADER_SIZE;
11046 os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp);
11047 buf[bp++] = WEXT_PNO_TLV_PREFIX;
11048 buf[bp++] = WEXT_PNO_TLV_VERSION;
11049 buf[bp++] = WEXT_PNO_TLV_SUBVERSION;
11050 buf[bp++] = WEXT_PNO_TLV_RESERVED;
11051
11052 while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) {
11053 /* Check that there is enough space needed for 1 more SSID, the
11054 * other sections and null termination */
11055 if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN +
11056 WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf))
11057 break;
11058 wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan",
a97bde0a
JM		 11059 params->ssids[i].ssid,
11060 params->ssids[i].ssid_len);
216eede8
DS		 11061 buf[bp++] = WEXT_PNO_SSID_SECTION;
11062 buf[bp++] = params->ssids[i].ssid_len;
11063 os_memcpy(&buf[bp], params->ssids[i].ssid,
11064 params->ssids[i].ssid_len);
11065 bp += params->ssids[i].ssid_len;
11066 i++;
11067 }
11068
11069 buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION;
11070 os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x",
11071 WEXT_PNO_SCAN_INTERVAL);
11072 bp += WEXT_PNO_SCAN_INTERVAL_LENGTH;
11073
11074 buf[bp++] = WEXT_PNO_REPEAT_SECTION;
11075 os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x",
11076 WEXT_PNO_REPEAT);
11077 bp += WEXT_PNO_REPEAT_LENGTH;
11078
11079 buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION;
11080 os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x",
11081 WEXT_PNO_MAX_REPEAT);
11082 bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1;
11083
11084 memset(&ifr, 0, sizeof(ifr));
11085 memset(&priv_cmd, 0, sizeof(priv_cmd));
24f051eb 11086 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ);
216eede8
DS		 11087
11088 priv_cmd.buf = buf;
11089 priv_cmd.used_len = bp;
11090 priv_cmd.total_len = bp;
11091 ifr.ifr_data = &priv_cmd;
11092
11093 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr);
11094
11095 if (ret < 0) {
11096 wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d",
11097 ret);
11098 wpa_driver_send_hang_msg(drv);
11099 return ret;
11100 }
11101
11102 drv_errors = 0;
11103
11104 return android_priv_cmd(bss, "PNOFORCE 1");
11105}
11106
11107
11108static int android_pno_stop(struct i802_bss *bss)
11109{
11110 return android_priv_cmd(bss, "PNOFORCE 0");
11111}
11112
11113#endif /* ANDROID */
11114
11115
9ebce9c5
JM		 11116static int driver_nl80211_set_key(const char *ifname, void *priv,
11117 enum wpa_alg alg, const u8 *addr,
11118 int key_idx, int set_tx,
11119 const u8 *seq, size_t seq_len,
11120 const u8 *key, size_t key_len)
11121{
11122 struct i802_bss *bss = priv;
11123 return wpa_driver_nl80211_set_key(ifname, bss, alg, addr, key_idx,
11124 set_tx, seq, seq_len, key, key_len);
11125}
11126
11127
11128static int driver_nl80211_scan2(void *priv,
11129 struct wpa_driver_scan_params *params)
11130{
11131 struct i802_bss *bss = priv;
11132 return wpa_driver_nl80211_scan(bss, params);
11133}
11134
11135
11136static int driver_nl80211_deauthenticate(void *priv, const u8 *addr,
11137 int reason_code)
11138{
11139 struct i802_bss *bss = priv;
11140 return wpa_driver_nl80211_deauthenticate(bss, addr, reason_code);
11141}
11142
11143
11144static int driver_nl80211_authenticate(void *priv,
11145 struct wpa_driver_auth_params *params)
11146{
11147 struct i802_bss *bss = priv;
11148 return wpa_driver_nl80211_authenticate(bss, params);
11149}
11150
11151
11152static void driver_nl80211_deinit(void *priv)
11153{
11154 struct i802_bss *bss = priv;
11155 wpa_driver_nl80211_deinit(bss);
11156}
11157
11158
11159static int driver_nl80211_if_remove(void *priv, enum wpa_driver_if_type type,
11160 const char *ifname)
11161{
11162 struct i802_bss *bss = priv;
11163 return wpa_driver_nl80211_if_remove(bss, type, ifname);
11164}
11165
11166
11167static int driver_nl80211_send_mlme(void *priv, const u8 *data,
11168 size_t data_len, int noack)
11169{
11170 struct i802_bss *bss = priv;
11171 return wpa_driver_nl80211_send_mlme(bss, data, data_len, noack,
11172 0, 0, 0, 0);
11173}
11174
11175
11176static int driver_nl80211_sta_remove(void *priv, const u8 *addr)
11177{
11178 struct i802_bss *bss = priv;
11179 return wpa_driver_nl80211_sta_remove(bss, addr);
11180}
11181
11182
9ebce9c5
JM		 11183static int driver_nl80211_set_sta_vlan(void *priv, const u8 *addr,
11184 const char *ifname, int vlan_id)
11185{
11186 struct i802_bss *bss = priv;
11187 return i802_set_sta_vlan(bss, addr, ifname, vlan_id);
11188}
9ebce9c5
JM		 11189
11190
11191static int driver_nl80211_read_sta_data(void *priv,
11192 struct hostap_sta_driver_data *data,
11193 const u8 *addr)
11194{
11195 struct i802_bss *bss = priv;
11196 return i802_read_sta_data(bss, data, addr);
11197}
11198
11199
11200static int driver_nl80211_send_action(void *priv, unsigned int freq,
11201 unsigned int wait_time,
11202 const u8 *dst, const u8 *src,
11203 const u8 *bssid,
11204 const u8 *data, size_t data_len,
11205 int no_cck)
11206{
11207 struct i802_bss *bss = priv;
11208 return wpa_driver_nl80211_send_action(bss, freq, wait_time, dst, src,
11209 bssid, data, data_len, no_cck);
11210}
11211
11212
11213static int driver_nl80211_probe_req_report(void *priv, int report)
11214{
11215 struct i802_bss *bss = priv;
11216 return wpa_driver_nl80211_probe_req_report(bss, report);
11217}
11218
11219
6a1ce395
DG		 11220static int wpa_driver_nl80211_update_ft_ies(void *priv, const u8 *md,
11221 const u8 *ies, size_t ies_len)
11222{
11223 int ret;
11224 struct nl_msg *msg;
11225 struct i802_bss *bss = priv;
11226 struct wpa_driver_nl80211_data *drv = bss->drv;
11227 u16 mdid = WPA_GET_LE16(md);
11228
11229 msg = nlmsg_alloc();
11230 if (!msg)
11231 return -ENOMEM;
11232
11233 wpa_printf(MSG_DEBUG, "nl80211: Updating FT IEs");
11234 nl80211_cmd(drv, msg, 0, NL80211_CMD_UPDATE_FT_IES);
11235 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
11236 NLA_PUT(msg, NL80211_ATTR_IE, ies_len, ies);
11237 NLA_PUT_U16(msg, NL80211_ATTR_MDID, mdid);
11238
11239 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
11240 if (ret) {
11241 wpa_printf(MSG_DEBUG, "nl80211: update_ft_ies failed "
11242 "err=%d (%s)", ret, strerror(-ret));
11243 }
11244
11245 return ret;
11246
11247nla_put_failure:
11248 nlmsg_free(msg);
11249 return -ENOBUFS;
11250}
11251
11252
597b94f5
AS		 11253const u8 * wpa_driver_nl80211_get_macaddr(void *priv)
11254{
11255 struct i802_bss *bss = priv;
11256 struct wpa_driver_nl80211_data *drv = bss->drv;
11257
11258 if (drv->nlmode != NL80211_IFTYPE_P2P_DEVICE)
11259 return NULL;
11260
11261 return bss->addr;
11262}
11263
11264
a771c07d
JM		 11265static const char * scan_state_str(enum scan_states scan_state)
11266{
11267 switch (scan_state) {
11268 case NO_SCAN:
11269 return "NO_SCAN";
11270 case SCAN_REQUESTED:
11271 return "SCAN_REQUESTED";
11272 case SCAN_STARTED:
11273 return "SCAN_STARTED";
11274 case SCAN_COMPLETED:
11275 return "SCAN_COMPLETED";
11276 case SCAN_ABORTED:
11277 return "SCAN_ABORTED";
11278 case SCHED_SCAN_STARTED:
11279 return "SCHED_SCAN_STARTED";
11280 case SCHED_SCAN_STOPPED:
11281 return "SCHED_SCAN_STOPPED";
11282 case SCHED_SCAN_RESULTS:
11283 return "SCHED_SCAN_RESULTS";
11284 }
11285
11286 return "??";
11287}
11288
11289
11290static int wpa_driver_nl80211_status(void *priv, char *buf, size_t buflen)
11291{
11292 struct i802_bss *bss = priv;
11293 struct wpa_driver_nl80211_data *drv = bss->drv;
11294 int res;
11295 char *pos, *end;
11296
11297 pos = buf;
11298 end = buf + buflen;
11299
11300 res = os_snprintf(pos, end - pos,
11301 "ifindex=%d\n"
11302 "ifname=%s\n"
11303 "brname=%s\n"
11304 "addr=" MACSTR "\n"
11305 "freq=%d\n"
11306 "%s%s%s%s%s",
11307 bss->ifindex,
11308 bss->ifname,
11309 bss->brname,
11310 MAC2STR(bss->addr),
11311 bss->freq,
11312 bss->beacon_set ? "beacon_set=1\n" : "",
11313 bss->added_if_into_bridge ?
11314 "added_if_into_bridge=1\n" : "",
11315 bss->added_bridge ? "added_bridge=1\n" : "",
11316 bss->in_deinit ? "in_deinit=1\n" : "",
11317 bss->if_dynamic ? "if_dynamic=1\n" : "");
11318 if (res < 0 || res >= end - pos)
11319 return pos - buf;
11320 pos += res;
11321
11322 if (bss->wdev_id_set) {
11323 res = os_snprintf(pos, end - pos, "wdev_id=%llu\n",
11324 (unsigned long long) bss->wdev_id);
11325 if (res < 0 || res >= end - pos)
11326 return pos - buf;
11327 pos += res;
11328 }
11329
11330 res = os_snprintf(pos, end - pos,
11331 "phyname=%s\n"
11332 "drv_ifindex=%d\n"
11333 "operstate=%d\n"
11334 "scan_state=%s\n"
11335 "auth_bssid=" MACSTR "\n"
11336 "auth_attempt_bssid=" MACSTR "\n"
11337 "bssid=" MACSTR "\n"
11338 "prev_bssid=" MACSTR "\n"
11339 "associated=%d\n"
11340 "assoc_freq=%u\n"
11341 "monitor_sock=%d\n"
11342 "monitor_ifidx=%d\n"
11343 "monitor_refcount=%d\n"
11344 "last_mgmt_freq=%u\n"
11345 "eapol_tx_sock=%d\n"
11346 "%s%s%s%s%s%s%s%s%s%s%s%s%s",
11347 drv->phyname,
11348 drv->ifindex,
11349 drv->operstate,
11350 scan_state_str(drv->scan_state),
11351 MAC2STR(drv->auth_bssid),
11352 MAC2STR(drv->auth_attempt_bssid),
11353 MAC2STR(drv->bssid),
11354 MAC2STR(drv->prev_bssid),
11355 drv->associated,
11356 drv->assoc_freq,
11357 drv->monitor_sock,
11358 drv->monitor_ifidx,
11359 drv->monitor_refcount,
11360 drv->last_mgmt_freq,
11361 drv->eapol_tx_sock,
11362 drv->ignore_if_down_event ?
11363 "ignore_if_down_event=1\n" : "",
11364 drv->scan_complete_events ?
11365 "scan_complete_events=1\n" : "",
11366 drv->disabled_11b_rates ?
11367 "disabled_11b_rates=1\n" : "",
11368 drv->pending_remain_on_chan ?
11369 "pending_remain_on_chan=1\n" : "",
11370 drv->in_interface_list ? "in_interface_list=1\n" : "",
11371 drv->device_ap_sme ? "device_ap_sme=1\n" : "",
11372 drv->poll_command_supported ?
11373 "poll_command_supported=1\n" : "",
11374 drv->data_tx_status ? "data_tx_status=1\n" : "",
11375 drv->scan_for_auth ? "scan_for_auth=1\n" : "",
11376 drv->retry_auth ? "retry_auth=1\n" : "",
11377 drv->use_monitor ? "use_monitor=1\n" : "",
11378 drv->ignore_next_local_disconnect ?
11379 "ignore_next_local_disconnect=1\n" : "",
11380 drv->allow_p2p_device ? "allow_p2p_device=1\n" : "");
11381 if (res < 0 || res >= end - pos)
11382 return pos - buf;
11383 pos += res;
11384
11385 if (drv->has_capability) {
11386 res = os_snprintf(pos, end - pos,
11387 "capa.key_mgmt=0x%x\n"
11388 "capa.enc=0x%x\n"
11389 "capa.auth=0x%x\n"
11390 "capa.flags=0x%x\n"
11391 "capa.max_scan_ssids=%d\n"
11392 "capa.max_sched_scan_ssids=%d\n"
11393 "capa.sched_scan_supported=%d\n"
11394 "capa.max_match_sets=%d\n"
11395 "capa.max_remain_on_chan=%u\n"
11396 "capa.max_stations=%u\n"
11397 "capa.probe_resp_offloads=0x%x\n"
11398 "capa.max_acl_mac_addrs=%u\n"
11399 "capa.num_multichan_concurrent=%u\n",
11400 drv->capa.key_mgmt,
11401 drv->capa.enc,
11402 drv->capa.auth,
11403 drv->capa.flags,
11404 drv->capa.max_scan_ssids,
11405 drv->capa.max_sched_scan_ssids,
11406 drv->capa.sched_scan_supported,
11407 drv->capa.max_match_sets,
11408 drv->capa.max_remain_on_chan,
11409 drv->capa.max_stations,
11410 drv->capa.probe_resp_offloads,
11411 drv->capa.max_acl_mac_addrs,
11412 drv->capa.num_multichan_concurrent);
11413 if (res < 0 || res >= end - pos)
11414 return pos - buf;
11415 pos += res;
11416 }
11417
11418 return pos - buf;
11419}
11420
11421
1c4ffa87
AO		 11422static int set_beacon_data(struct nl_msg *msg, struct beacon_data *settings)
11423{
11424 if (settings->head)
11425 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD,
11426 settings->head_len, settings->head);
11427
11428 if (settings->tail)
11429 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL,
11430 settings->tail_len, settings->tail);
11431
11432 if (settings->beacon_ies)
11433 NLA_PUT(msg, NL80211_ATTR_IE,
11434 settings->beacon_ies_len, settings->beacon_ies);
11435
11436 if (settings->proberesp_ies)
11437 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP,
11438 settings->proberesp_ies_len, settings->proberesp_ies);
11439
11440 if (settings->assocresp_ies)
11441 NLA_PUT(msg,
11442 NL80211_ATTR_IE_ASSOC_RESP,
11443 settings->assocresp_ies_len, settings->assocresp_ies);
11444
11445 if (settings->probe_resp)
11446 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP,
11447 settings->probe_resp_len, settings->probe_resp);
11448
11449 return 0;
11450
11451nla_put_failure:
11452 return -ENOBUFS;
11453}
11454
11455
11456static int nl80211_switch_channel(void *priv, struct csa_settings *settings)
11457{
11458 struct nl_msg *msg;
11459 struct i802_bss *bss = priv;
11460 struct wpa_driver_nl80211_data *drv = bss->drv;
11461 struct nlattr *beacon_csa;
11462 int ret = -ENOBUFS;
11463
8d1fdde7 11464 wpa_printf(MSG_DEBUG, "nl80211: Channel switch request (cs_count=%u block_tx=%u freq=%d width=%d cf1=%d cf2=%d)",
1c4ffa87 11465 settings->cs_count, settings->block_tx,
8d1fdde7
JD		 11466 settings->freq_params.freq, settings->freq_params.bandwidth,
11467 settings->freq_params.center_freq1,
11468 settings->freq_params.center_freq2);
1c4ffa87
AO		 11469
11470 if (!drv->channel_switch_supported) {
11471 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support channel switch command");
11472 return -EOPNOTSUPP;
11473 }
11474
11475 if ((drv->nlmode != NL80211_IFTYPE_AP) &&
11476 (drv->nlmode != NL80211_IFTYPE_P2P_GO))
11477 return -EOPNOTSUPP;
11478
11479 /* check settings validity */
11480 if (!settings->beacon_csa.tail ||
11481 ((settings->beacon_csa.tail_len <=
11482 settings->counter_offset_beacon) ||
11483 (settings->beacon_csa.tail[settings->counter_offset_beacon] !=
11484 settings->cs_count)))
11485 return -EINVAL;
11486
11487 if (settings->beacon_csa.probe_resp &&
11488 ((settings->beacon_csa.probe_resp_len <=
11489 settings->counter_offset_presp) ||
11490 (settings->beacon_csa.probe_resp[settings->counter_offset_presp] !=
11491 settings->cs_count)))
11492 return -EINVAL;
11493
11494 msg = nlmsg_alloc();
11495 if (!msg)
11496 return -ENOMEM;
11497
11498 nl80211_cmd(drv, msg, 0, NL80211_CMD_CHANNEL_SWITCH);
11499 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
11500 NLA_PUT_U32(msg, NL80211_ATTR_CH_SWITCH_COUNT, settings->cs_count);
11501 ret = nl80211_put_freq_params(msg, &settings->freq_params);
11502 if (ret)
11503 goto error;
11504
11505 if (settings->block_tx)
11506 NLA_PUT_FLAG(msg, NL80211_ATTR_CH_SWITCH_BLOCK_TX);
11507
11508 /* beacon_after params */
11509 ret = set_beacon_data(msg, &settings->beacon_after);
11510 if (ret)
11511 goto error;
11512
11513 /* beacon_csa params */
11514 beacon_csa = nla_nest_start(msg, NL80211_ATTR_CSA_IES);
11515 if (!beacon_csa)
11516 goto nla_put_failure;
11517
11518 ret = set_beacon_data(msg, &settings->beacon_csa);
11519 if (ret)
11520 goto error;
11521
11522 NLA_PUT_U16(msg, NL80211_ATTR_CSA_C_OFF_BEACON,
11523 settings->counter_offset_beacon);
11524
11525 if (settings->beacon_csa.probe_resp)
11526 NLA_PUT_U16(msg, NL80211_ATTR_CSA_C_OFF_PRESP,
11527 settings->counter_offset_presp);
11528
11529 nla_nest_end(msg, beacon_csa);
11530 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
11531 if (ret) {
11532 wpa_printf(MSG_DEBUG, "nl80211: switch_channel failed err=%d (%s)",
11533 ret, strerror(-ret));
11534 }
11535 return ret;
11536
11537nla_put_failure:
11538 ret = -ENOBUFS;
11539error:
11540 nlmsg_free(msg);
11541 wpa_printf(MSG_DEBUG, "nl80211: Could not build channel switch request");
11542 return ret;
11543}
11544
11545
049105b4
KP		 11546static int nl80211_set_qos_map(void *priv, const u8 *qos_map_set,
11547 u8 qos_map_set_len)
11548{
11549 struct i802_bss *bss = priv;
11550 struct wpa_driver_nl80211_data *drv = bss->drv;
11551 struct nl_msg *msg;
11552 int ret;
11553
11554 msg = nlmsg_alloc();
11555 if (!msg)
11556 return -ENOMEM;
11557
11558 wpa_hexdump(MSG_DEBUG, "nl80211: Setting QoS Map",
11559 qos_map_set, qos_map_set_len);
11560
11561 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_QOS_MAP);
11562 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
11563 NLA_PUT(msg, NL80211_ATTR_QOS_MAP, qos_map_set_len, qos_map_set);
11564
11565 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
11566 if (ret)
11567 wpa_printf(MSG_DEBUG, "nl80211: Setting QoS Map failed");
11568
11569 return ret;
11570
11571nla_put_failure:
11572 nlmsg_free(msg);
11573 return -ENOBUFS;
11574}
11575
11576
3f5285e8
JM		 11577const struct wpa_driver_ops wpa_driver_nl80211_ops = {
11578 .name = "nl80211",
11579 .desc = "Linux nl80211/cfg80211",
11580 .get_bssid = wpa_driver_nl80211_get_bssid,
11581 .get_ssid = wpa_driver_nl80211_get_ssid,
9ebce9c5
JM		 11582 .set_key = driver_nl80211_set_key,
11583 .scan2 = driver_nl80211_scan2,
d21c63b9
LC		 11584 .sched_scan = wpa_driver_nl80211_sched_scan,
11585 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan,
3f5285e8 11586 .get_scan_results2 = wpa_driver_nl80211_get_scan_results,
9ebce9c5
JM		 11587 .deauthenticate = driver_nl80211_deauthenticate,
11588 .authenticate = driver_nl80211_authenticate,
3f5285e8 11589 .associate = wpa_driver_nl80211_associate,
f2ed8023
JM		 11590 .global_init = nl80211_global_init,
11591 .global_deinit = nl80211_global_deinit,
11592 .init2 = wpa_driver_nl80211_init,
9ebce9c5 11593 .deinit = driver_nl80211_deinit,
3f5285e8
JM		 11594 .get_capa = wpa_driver_nl80211_get_capa,
11595 .set_operstate = wpa_driver_nl80211_set_operstate,
01652550 11596 .set_supp_port = wpa_driver_nl80211_set_supp_port,
6d158490 11597 .set_country = wpa_driver_nl80211_set_country,
f0793bf1 11598 .get_country = wpa_driver_nl80211_get_country,
19c3b566 11599 .set_ap = wpa_driver_nl80211_set_ap,
3c4ca363 11600 .set_acl = wpa_driver_nl80211_set_acl,
22a7c9d7 11601 .if_add = wpa_driver_nl80211_if_add,
9ebce9c5
JM		 11602 .if_remove = driver_nl80211_if_remove,
11603 .send_mlme = driver_nl80211_send_mlme,
c3965310 11604 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data,
0f4e8b4f 11605 .sta_add = wpa_driver_nl80211_sta_add,
9ebce9c5 11606 .sta_remove = driver_nl80211_sta_remove,
db149ac9 11607 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol,
a8d6ffa4 11608 .sta_set_flags = wpa_driver_nl80211_sta_set_flags,
c5121837 11609 .hapd_init = i802_init,
c5121837 11610 .hapd_deinit = i802_deinit,
f7b3920c 11611 .set_wds_sta = i802_set_wds_sta,
c5121837
JM		 11612 .get_seqnum = i802_get_seqnum,
11613 .flush = i802_flush,
c5121837
JM		 11614 .get_inact_sec = i802_get_inact_sec,
11615 .sta_clear_stats = i802_sta_clear_stats,
c5121837
JM		 11616 .set_rts = i802_set_rts,
11617 .set_frag = i802_set_frag,
c5121837 11618 .set_tx_queue_params = i802_set_tx_queue_params,
9ebce9c5 11619 .set_sta_vlan = driver_nl80211_set_sta_vlan,
ee7ab173
JB		 11620 .sta_deauth = i802_sta_deauth,
11621 .sta_disassoc = i802_sta_disassoc,
9ebce9c5 11622 .read_sta_data = driver_nl80211_read_sta_data,
e3802622 11623 .set_freq = i802_set_freq,
9ebce9c5 11624 .send_action = driver_nl80211_send_action,
5dfca53f 11625 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait,
55777702
JM		 11626 .remain_on_channel = wpa_driver_nl80211_remain_on_channel,
11627 .cancel_remain_on_channel =
11628 wpa_driver_nl80211_cancel_remain_on_channel,
9ebce9c5 11629 .probe_req_report = driver_nl80211_probe_req_report,
af473088 11630 .deinit_ap = wpa_driver_nl80211_deinit_ap,
3c29244e 11631 .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli,
207ef3fb 11632 .resume = wpa_driver_nl80211_resume,
7b90c16a 11633 .send_ft_action = nl80211_send_ft_action,
b625473c 11634 .signal_monitor = nl80211_signal_monitor,
1c5c7273 11635 .signal_poll = nl80211_signal_poll,
b91ab76e 11636 .send_frame = nl80211_send_frame,
57ebba59 11637 .shared_freq = wpa_driver_nl80211_shared_freq,
c55f774d 11638 .set_param = nl80211_set_param,
6859f1cb 11639 .get_radio_name = nl80211_get_radio_name,
a6efc65d
JM		 11640 .add_pmkid = nl80211_add_pmkid,
11641 .remove_pmkid = nl80211_remove_pmkid,
11642 .flush_pmkid = nl80211_flush_pmkid,
b14a210c 11643 .set_rekey_info = nl80211_set_rekey_info,
bcf24348 11644 .poll_client = nl80211_poll_client,
29f338af 11645 .set_p2p_powersave = nl80211_set_p2p_powersave,
f90e9c1c 11646 .start_dfs_cac = nl80211_start_radar_detection,
695c7038 11647 .stop_ap = wpa_driver_nl80211_stop_ap,
03ea1786
AN		 11648#ifdef CONFIG_TDLS
11649 .send_tdls_mgmt = nl80211_send_tdls_mgmt,
11650 .tdls_oper = nl80211_tdls_oper,
11651#endif /* CONFIG_TDLS */
6a1ce395 11652 .update_ft_ies = wpa_driver_nl80211_update_ft_ies,
597b94f5 11653 .get_mac_addr = wpa_driver_nl80211_get_macaddr,
0185007c 11654 .get_survey = wpa_driver_nl80211_get_survey,
a771c07d 11655 .status = wpa_driver_nl80211_status,
1c4ffa87 11656 .switch_channel = nl80211_switch_channel,
0de38036
JM		 11657#ifdef ANDROID_P2P
11658 .set_noa = wpa_driver_set_p2p_noa,
11659 .get_noa = wpa_driver_get_p2p_noa,
11660 .set_ap_wps_ie = wpa_driver_set_ap_wps_p2p_ie,
11661#endif /* ANDROID_P2P */
5e2c3490
JM		 11662#ifdef ANDROID
11663 .driver_cmd = wpa_driver_nl80211_driver_cmd,
11664#endif /* ANDROID */
049105b4 11665 .set_qos_map = nl80211_set_qos_map,
3f5285e8 11666};
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