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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
481234cf 112static struct nl_handle * nl_create_handle(struct nl_cb *cb, const char *dbg)
a92dfde8 113{
481234cf 114 struct nl_handle *handle;
a92dfde8 115
481234cf
JM		 116 handle = nl80211_handle_alloc(cb);
117 if (handle == NULL) {
a92dfde8
JB		 118 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
119 "callbacks (%s)", dbg);
481234cf 120 return NULL;
a92dfde8
JB		 121 }
122
481234cf 123 if (genl_connect(handle)) {
a92dfde8
JB		 124 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
125 "netlink (%s)", dbg);
481234cf
JM		 126 nl80211_handle_destroy(handle);
127 return NULL;
a92dfde8
JB		 128 }
129
481234cf 130 return handle;
a92dfde8
JB		 131}
132
133
481234cf 134static void nl_destroy_handles(struct nl_handle **handle)
a92dfde8 135{
481234cf 136 if (*handle == NULL)
a92dfde8 137 return;
481234cf
JM		 138 nl80211_handle_destroy(*handle);
139 *handle = NULL;
a92dfde8
JB		 140}
141
142
3f5285e8
JM		 143#ifndef IFF_LOWER_UP
144#define IFF_LOWER_UP 0x10000 /* driver signals L1 up */
145#endif
146#ifndef IFF_DORMANT
147#define IFF_DORMANT 0x20000 /* driver signals dormant */
148#endif
149
150#ifndef IF_OPER_DORMANT
151#define IF_OPER_DORMANT 5
152#endif
153#ifndef IF_OPER_UP
154#define IF_OPER_UP 6
155#endif
156
f2ed8023
JM		 157struct nl80211_global {
158 struct dl_list interfaces;
ff6a158b 159 int if_add_ifindex;
36d84860 160 struct netlink_data *netlink;
2a7b66f5 161 struct nl_cb *nl_cb;
481234cf 162 struct nl_handle *nl;
335d42b1 163 int nl80211_id;
c81eff1a 164 int ioctl_sock; /* socket for ioctl() use */
d6c9aab8 165
481234cf 166 struct nl_handle *nl_event;
f2ed8023
JM		 167};
168
e32ad281
JB		 169struct nl80211_wiphy_data {
170 struct dl_list list;
171 struct dl_list bsss;
172 struct dl_list drvs;
173
481234cf 174 struct nl_handle *nl_beacons;
e32ad281
JB		 175 struct nl_cb *nl_cb;
176
177 int wiphy_idx;
178};
179
36d84860 180static void nl80211_global_deinit(void *priv);
dac12351 181static void wpa_driver_nl80211_deinit(void *priv);
36d84860 182
c5121837 183struct i802_bss {
a2e40bb6 184 struct wpa_driver_nl80211_data *drv;
c5121837 185 struct i802_bss *next;
b4fd6fab 186 int ifindex;
a2e40bb6 187 char ifname[IFNAMSIZ + 1];
e17a2477 188 char brname[IFNAMSIZ];
c5121837 189 unsigned int beacon_set:1;
e17a2477
JM		 190 unsigned int added_if_into_bridge:1;
191 unsigned int added_bridge:1;
873d0fcf 192 unsigned int in_deinit:1;
221a59c9 193
341eebee
JB		 194 u8 addr[ETH_ALEN];
195
e4fb2167
JB		 196 int freq;
197
481234cf 198 struct nl_handle *nl_preq, *nl_mgmt;
cc7a48d1 199 struct nl_cb *nl_cb;
e32ad281
JB		 200
201 struct nl80211_wiphy_data *wiphy_data;
202 struct dl_list wiphy_list;
c5121837 203};
3f5285e8
JM		 204
205struct wpa_driver_nl80211_data {
f2ed8023
JM		 206 struct nl80211_global *global;
207 struct dl_list list;
e32ad281 208 struct dl_list wiphy_list;
6859f1cb 209 char phyname[32];
3f5285e8 210 void *ctx;
3f5285e8 211 int ifindex;
7524cfb1 212 int if_removed;
a63063b4 213 int if_disabled;
7d9c3698 214 int ignore_if_down_event;
8401a6b0 215 struct rfkill_data *rfkill;
c2a04078
JM		 216 struct wpa_driver_capa capa;
217 int has_capability;
c2a04078 218
3f5285e8
JM		 219 int operstate;
220
3f5285e8
JM		 221 int scan_complete_events;
222
1afc986d 223 struct nl_cb *nl_cb;
1c873584 224
e6b8efeb 225 u8 auth_bssid[ETH_ALEN];
c2a04078
JM		 226 u8 bssid[ETH_ALEN];
227 int associated;
fd05d64e
JM		 228 u8 ssid[32];
229 size_t ssid_len;
b1f625e0
EP		 230 enum nl80211_iftype nlmode;
231 enum nl80211_iftype ap_scan_as_station;
4832ecd7 232 unsigned int assoc_freq;
d2440ba0 233
0915d02c
JM		 234 int monitor_sock;
235 int monitor_ifidx;
3fd1cefb 236 int monitor_refcount;
7da3abe7 237
b3af99d2 238 unsigned int disabled_11b_rates:1;
55777702 239 unsigned int pending_remain_on_chan:1;
dac12351 240 unsigned int in_interface_list:1;
61cbe2ff 241 unsigned int device_ap_sme:1;
39718852 242 unsigned int poll_command_supported:1;
32ab4855 243 unsigned int data_tx_status:1;
536fd62d
JM		 244 unsigned int scan_for_auth:1;
245 unsigned int retry_auth:1;
a11241fa 246 unsigned int use_monitor:1;
55777702
JM		 247
248 u64 remain_on_chan_cookie;
58f6fbe0 249 u64 send_action_cookie;
c5121837 250
5582a5d1
JB		 251 unsigned int last_mgmt_freq;
252
3812464c
JM		 253 struct wpa_driver_scan_filter *filter_ssids;
254 size_t num_filter_ssids;
255
a2e40bb6
FF		 256 struct i802_bss first_bss;
257
d12dab4c 258 int eapol_tx_sock;
f10bfc9a 259
c5121837 260#ifdef HOSTAPD
c5121837 261 int eapol_sock; /* socket for EAPOL frames */
c5121837
JM		 262
263 int default_if_indices[16];
264 int *if_indices;
265 int num_if_indices;
266
c5121837
JM		 267 int last_freq;
268 int last_freq_ht;
c5121837 269#endif /* HOSTAPD */
536fd62d
JM		 270
271 /* From failed authentication command */
272 int auth_freq;
273 u8 auth_bssid_[ETH_ALEN];
274 u8 auth_ssid[32];
275 size_t auth_ssid_len;
276 int auth_alg;
277 u8 *auth_ie;
278 size_t auth_ie_len;
279 u8 auth_wep_key[4][16];
280 size_t auth_wep_key_len[4];
281 int auth_wep_tx_keyidx;
282 int auth_local_state_change;
283 int auth_p2p;
3f5285e8
JM		 284};
285
286
287static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx,
288 void *timeout_ctx);
b1f625e0
EP		 289static int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
290 enum nl80211_iftype nlmode);
362f781e 291static int
7524cfb1 292wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv);
d72aad94 293static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
77339912
JM		 294 const u8 *addr, int cmd, u16 reason_code,
295 int local_state_change);
460456f8
JM		 296static void nl80211_remove_monitor_interface(
297 struct wpa_driver_nl80211_data *drv);
88df0ef7 298static int nl80211_send_frame_cmd(struct i802_bss *bss,
5dfca53f 299 unsigned int freq, unsigned int wait,
b106173a 300 const u8 *buf, size_t buf_len, u64 *cookie,
88df0ef7 301 int no_cck, int no_ack, int offchanok);
5582a5d1 302static int wpa_driver_nl80211_probe_req_report(void *priv, int report);
216eede8
DS		 303#ifdef ANDROID
304static int android_pno_start(struct i802_bss *bss,
305 struct wpa_driver_scan_params *params);
306static int android_pno_stop(struct i802_bss *bss);
307#endif /* ANDROID */
0915d02c 308
072ad14c 309#ifdef HOSTAPD
2135f224
JM		 310static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
311static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
97cfcf64 312static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
fbbfcbac
FF		 313static int wpa_driver_nl80211_if_remove(void *priv,
314 enum wpa_driver_if_type type,
315 const char *ifname);
37eb8da9 316#else /* HOSTAPD */
bd2df892
JM		 317static inline void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
318{
319}
320
321static inline void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
322{
323}
324
325static inline int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
37eb8da9
JM		 326{
327 return 0;
328}
072ad14c
JM		 329#endif /* HOSTAPD */
330
e3802622 331static int i802_set_freq(void *priv, struct hostapd_freq_params *freq);
4e5cb1a3
JM		 332static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
333 int ifindex, int disabled);
504e905c 334
21bdbe38 335static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv);
536fd62d
JM		 336static int wpa_driver_nl80211_authenticate_retry(
337 struct wpa_driver_nl80211_data *drv);
21bdbe38 338
3f5285e8 339
b1f625e0
EP		 340static int is_ap_interface(enum nl80211_iftype nlmode)
341{
342 return (nlmode == NL80211_IFTYPE_AP ||
343 nlmode == NL80211_IFTYPE_P2P_GO);
344}
345
346
347static int is_sta_interface(enum nl80211_iftype nlmode)
348{
349 return (nlmode == NL80211_IFTYPE_STATION ||
350 nlmode == NL80211_IFTYPE_P2P_CLIENT);
351}
352
353
b3af99d2
JM		 354static int is_p2p_interface(enum nl80211_iftype nlmode)
355{
356 return (nlmode == NL80211_IFTYPE_P2P_CLIENT ||
357 nlmode == NL80211_IFTYPE_P2P_GO);
358}
359
360
f5a8d422
JM		 361struct nl80211_bss_info_arg {
362 struct wpa_driver_nl80211_data *drv;
363 struct wpa_scan_results *res;
364 unsigned int assoc_freq;
20f5a4c2 365 u8 assoc_bssid[ETH_ALEN];
f5a8d422
JM		 366};
367
368static int bss_info_handler(struct nl_msg *msg, void *arg);
369
370
6241fcb1
JM		 371/* nl80211 code */
372static int ack_handler(struct nl_msg *msg, void *arg)
373{
374 int *err = arg;
375 *err = 0;
376 return NL_STOP;
377}
378
379static int finish_handler(struct nl_msg *msg, void *arg)
380{
8e8df255
JM		 381 int *ret = arg;
382 *ret = 0;
6241fcb1
JM		 383 return NL_SKIP;
384}
385
386static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err,
387 void *arg)
388{
389 int *ret = arg;
390 *ret = err->error;
391 return NL_SKIP;
392}
393
5b7b85f6
JM		 394
395static int no_seq_check(struct nl_msg *msg, void *arg)
396{
397 return NL_OK;
398}
399
400
d6c9aab8 401static int send_and_recv(struct nl80211_global *global,
58f6fbe0
JM		 402 struct nl_handle *nl_handle, struct nl_msg *msg,
403 int (*valid_handler)(struct nl_msg *, void *),
404 void *valid_data)
6241fcb1
JM		 405{
406 struct nl_cb *cb;
407 int err = -ENOMEM;
408
d6c9aab8 409 cb = nl_cb_clone(global->nl_cb);
6241fcb1
JM		 410 if (!cb)
411 goto out;
412
58f6fbe0 413 err = nl_send_auto_complete(nl_handle, msg);
6241fcb1
JM		 414 if (err < 0)
415 goto out;
416
417 err = 1;
418
419 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
8e8df255 420 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
6241fcb1
JM		 421 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
422
423 if (valid_handler)
424 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM,
425 valid_handler, valid_data);
426
427 while (err > 0)
58f6fbe0 428 nl_recvmsgs(nl_handle, cb);
6241fcb1
JM		 429 out:
430 nl_cb_put(cb);
431 nlmsg_free(msg);
432 return err;
433}
434
435
d6c9aab8
JB		 436static int send_and_recv_msgs_global(struct nl80211_global *global,
437 struct nl_msg *msg,
438 int (*valid_handler)(struct nl_msg *, void *),
439 void *valid_data)
440{
481234cf 441 return send_and_recv(global, global->nl, msg, valid_handler,
d6c9aab8
JB		 442 valid_data);
443}
444
445
58f6fbe0
JM		 446static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv,
447 struct nl_msg *msg,
448 int (*valid_handler)(struct nl_msg *, void *),
449 void *valid_data)
450{
481234cf 451 return send_and_recv(drv->global, drv->global->nl, msg,
d6c9aab8 452 valid_handler, valid_data);
58f6fbe0
JM		 453}
454
455
97865538
JM		 456struct family_data {
457 const char *group;
458 int id;
459};
460
461
462static int family_handler(struct nl_msg *msg, void *arg)
463{
464 struct family_data *res = arg;
465 struct nlattr *tb[CTRL_ATTR_MAX + 1];
466 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
467 struct nlattr *mcgrp;
468 int i;
469
470 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
471 genlmsg_attrlen(gnlh, 0), NULL);
472 if (!tb[CTRL_ATTR_MCAST_GROUPS])
473 return NL_SKIP;
474
475 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) {
476 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1];
477 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp),
478 nla_len(mcgrp), NULL);
479 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] ||
480 !tb2[CTRL_ATTR_MCAST_GRP_ID] ||
481 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]),
482 res->group,
483 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0)
484 continue;
485 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]);
486 break;
487 };
488
489 return NL_SKIP;
490}
491
492
d6c9aab8 493static int nl_get_multicast_id(struct nl80211_global *global,
97865538
JM		 494 const char *family, const char *group)
495{
496 struct nl_msg *msg;
497 int ret = -1;
498 struct family_data res = { group, -ENOENT };
499
500 msg = nlmsg_alloc();
501 if (!msg)
502 return -ENOMEM;
481234cf 503 genlmsg_put(msg, 0, 0, genl_ctrl_resolve(global->nl, "nlctrl"),
97865538
JM		 504 0, 0, CTRL_CMD_GETFAMILY, 0);
505 NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family);
506
d6c9aab8 507 ret = send_and_recv_msgs_global(global, msg, family_handler, &res);
97865538
JM		 508 msg = NULL;
509 if (ret == 0)
510 ret = res.id;
511
512nla_put_failure:
513 nlmsg_free(msg);
514 return ret;
515}
516
517
9fb04070
JM		 518static void * nl80211_cmd(struct wpa_driver_nl80211_data *drv,
519 struct nl_msg *msg, int flags, uint8_t cmd)
520{
335d42b1 521 return genlmsg_put(msg, 0, 0, drv->global->nl80211_id,
276e2d67 522 0, flags, cmd, 0);
9fb04070
JM		 523}
524
525
e32ad281
JB		 526struct wiphy_idx_data {
527 int wiphy_idx;
528};
529
530
531static int netdev_info_handler(struct nl_msg *msg, void *arg)
532{
533 struct nlattr *tb[NL80211_ATTR_MAX + 1];
534 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
535 struct wiphy_idx_data *info = arg;
536
537 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
538 genlmsg_attrlen(gnlh, 0), NULL);
539
540 if (tb[NL80211_ATTR_WIPHY])
541 info->wiphy_idx = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
542
543 return NL_SKIP;
544}
545
546
547static int nl80211_get_wiphy_index(struct i802_bss *bss)
548{
549 struct nl_msg *msg;
550 struct wiphy_idx_data data = {
551 .wiphy_idx = -1,
552 };
553
554 msg = nlmsg_alloc();
555 if (!msg)
556 return -1;
557
558 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_GET_INTERFACE);
559
560 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
561
562 if (send_and_recv_msgs(bss->drv, msg, netdev_info_handler, &data) == 0)
563 return data.wiphy_idx;
564 msg = NULL;
565nla_put_failure:
566 nlmsg_free(msg);
567 return -1;
568}
569
570
571static int nl80211_register_beacons(struct wpa_driver_nl80211_data *drv,
572 struct nl80211_wiphy_data *w)
573{
574 struct nl_msg *msg;
575 int ret = -1;
576
577 msg = nlmsg_alloc();
578 if (!msg)
579 return -1;
580
581 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_BEACONS);
582
583 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, w->wiphy_idx);
584
481234cf 585 ret = send_and_recv(drv->global, w->nl_beacons, msg, NULL, NULL);
e32ad281
JB		 586 msg = NULL;
587 if (ret) {
588 wpa_printf(MSG_DEBUG, "nl80211: Register beacons command "
589 "failed: ret=%d (%s)",
590 ret, strerror(-ret));
591 goto nla_put_failure;
592 }
593 ret = 0;
594nla_put_failure:
595 nlmsg_free(msg);
596 return ret;
597}
598
599
600static void nl80211_recv_beacons(int sock, void *eloop_ctx, void *handle)
601{
602 struct nl80211_wiphy_data *w = eloop_ctx;
603
ee9fc67a 604 wpa_printf(MSG_EXCESSIVE, "nl80211: Beacon event message available");
e32ad281
JB		 605
606 nl_recvmsgs(handle, w->nl_cb);
607}
608
609
610static int process_beacon_event(struct nl_msg *msg, void *arg)
611{
612 struct nl80211_wiphy_data *w = arg;
613 struct wpa_driver_nl80211_data *drv;
614 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
615 struct nlattr *tb[NL80211_ATTR_MAX + 1];
616 union wpa_event_data event;
617
618 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
619 genlmsg_attrlen(gnlh, 0), NULL);
620
621 if (gnlh->cmd != NL80211_CMD_FRAME) {
622 wpa_printf(MSG_DEBUG, "nl80211: Unexpected beacon event? (%d)",
623 gnlh->cmd);
624 return NL_SKIP;
625 }
626
627 if (!tb[NL80211_ATTR_FRAME])
628 return NL_SKIP;
629
630 dl_list_for_each(drv, &w->drvs, struct wpa_driver_nl80211_data,
631 wiphy_list) {
632 os_memset(&event, 0, sizeof(event));
633 event.rx_mgmt.frame = nla_data(tb[NL80211_ATTR_FRAME]);
634 event.rx_mgmt.frame_len = nla_len(tb[NL80211_ATTR_FRAME]);
635 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
636 }
637
638 return NL_SKIP;
639}
640
641
642static struct nl80211_wiphy_data *
643nl80211_get_wiphy_data_ap(struct i802_bss *bss)
644{
645 static DEFINE_DL_LIST(nl80211_wiphys);
646 struct nl80211_wiphy_data *w;
647 int wiphy_idx, found = 0;
648 struct i802_bss *tmp_bss;
649
650 if (bss->wiphy_data != NULL)
651 return bss->wiphy_data;
652
653 wiphy_idx = nl80211_get_wiphy_index(bss);
654
655 dl_list_for_each(w, &nl80211_wiphys, struct nl80211_wiphy_data, list) {
656 if (w->wiphy_idx == wiphy_idx)
657 goto add;
658 }
659
660 /* alloc new one */
661 w = os_zalloc(sizeof(*w));
662 if (w == NULL)
663 return NULL;
664 w->wiphy_idx = wiphy_idx;
665 dl_list_init(&w->bsss);
666 dl_list_init(&w->drvs);
667
668 w->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
669 if (!w->nl_cb) {
670 os_free(w);
671 return NULL;
672 }
673 nl_cb_set(w->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL);
674 nl_cb_set(w->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, process_beacon_event,
675 w);
676
481234cf
JM		 677 w->nl_beacons = nl_create_handle(bss->drv->global->nl_cb,
678 "wiphy beacons");
679 if (w->nl_beacons == NULL) {
e32ad281
JB		 680 os_free(w);
681 return NULL;
682 }
683
684 if (nl80211_register_beacons(bss->drv, w)) {
685 nl_destroy_handles(&w->nl_beacons);
686 os_free(w);
687 return NULL;
688 }
689
481234cf
JM		 690 eloop_register_read_sock(nl_socket_get_fd(w->nl_beacons),
691 nl80211_recv_beacons, w, w->nl_beacons);
e32ad281
JB		 692
693 dl_list_add(&nl80211_wiphys, &w->list);
694
695add:
696 /* drv entry for this bss already there? */
697 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) {
698 if (tmp_bss->drv == bss->drv) {
699 found = 1;
700 break;
701 }
702 }
703 /* if not add it */
704 if (!found)
705 dl_list_add(&w->drvs, &bss->drv->wiphy_list);
706
707 dl_list_add(&w->bsss, &bss->wiphy_list);
708 bss->wiphy_data = w;
709 return w;
710}
711
712
713static void nl80211_put_wiphy_data_ap(struct i802_bss *bss)
714{
715 struct nl80211_wiphy_data *w = bss->wiphy_data;
716 struct i802_bss *tmp_bss;
717 int found = 0;
718
719 if (w == NULL)
720 return;
721 bss->wiphy_data = NULL;
722 dl_list_del(&bss->wiphy_list);
723
724 /* still any for this drv present? */
725 dl_list_for_each(tmp_bss, &w->bsss, struct i802_bss, wiphy_list) {
726 if (tmp_bss->drv == bss->drv) {
727 found = 1;
728 break;
729 }
730 }
731 /* if not remove it */
732 if (!found)
733 dl_list_del(&bss->drv->wiphy_list);
734
735 if (!dl_list_empty(&w->bsss))
736 return;
737
481234cf 738 eloop_unregister_read_sock(nl_socket_get_fd(w->nl_beacons));
e32ad281
JB		 739
740 nl_cb_put(w->nl_cb);
741 nl_destroy_handles(&w->nl_beacons);
742 dl_list_del(&w->list);
743 os_free(w);
744}
745
746
3f5285e8
JM		 747static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid)
748{
a2e40bb6
FF		 749 struct i802_bss *bss = priv;
750 struct wpa_driver_nl80211_data *drv = bss->drv;
c2a04078
JM		 751 if (!drv->associated)
752 return -1;
753 os_memcpy(bssid, drv->bssid, ETH_ALEN);
754 return 0;
3f5285e8
JM		 755}
756
757
3f5285e8
JM		 758static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid)
759{
a2e40bb6
FF		 760 struct i802_bss *bss = priv;
761 struct wpa_driver_nl80211_data *drv = bss->drv;
fd05d64e
JM		 762 if (!drv->associated)
763 return -1;
764 os_memcpy(ssid, drv->ssid, drv->ssid_len);
765 return drv->ssid_len;
3f5285e8
JM		 766}
767
768
7524cfb1 769static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv,
08063178 770 char *buf, size_t len, int del)
3f5285e8
JM		 771{
772 union wpa_event_data event;
773
774 os_memset(&event, 0, sizeof(event));
775 if (len > sizeof(event.interface_status.ifname))
776 len = sizeof(event.interface_status.ifname) - 1;
777 os_memcpy(event.interface_status.ifname, buf, len);
778 event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED :
779 EVENT_INTERFACE_ADDED;
780
781 wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s",
782 del ? "DEL" : "NEW",
783 event.interface_status.ifname,
784 del ? "removed" : "added");
785
a2e40bb6 786 if (os_strcmp(drv->first_bss.ifname, event.interface_status.ifname) == 0) {
d1f4942b
JM		 787 if (del) {
788 if (drv->if_removed) {
789 wpa_printf(MSG_DEBUG, "nl80211: if_removed "
790 "already set - ignore event");
791 return;
792 }
7524cfb1 793 drv->if_removed = 1;
d1f4942b
JM		 794 } else {
795 if (if_nametoindex(drv->first_bss.ifname) == 0) {
796 wpa_printf(MSG_DEBUG, "nl80211: Interface %s "
797 "does not exist - ignore "
798 "RTM_NEWLINK",
799 drv->first_bss.ifname);
800 return;
801 }
802 if (!drv->if_removed) {
803 wpa_printf(MSG_DEBUG, "nl80211: if_removed "
804 "already cleared - ignore event");
805 return;
806 }
7524cfb1 807 drv->if_removed = 0;
d1f4942b 808 }
7524cfb1
JM		 809 }
810
08063178 811 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event);
3f5285e8
JM		 812}
813
814
7524cfb1 815static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv,
62d680c3 816 u8 *buf, size_t len)
7524cfb1 817{
62d680c3 818 int attrlen, rta_len;
7524cfb1
JM		 819 struct rtattr *attr;
820
62d680c3
JM		 821 attrlen = len;
822 attr = (struct rtattr *) buf;
7524cfb1
JM		 823
824 rta_len = RTA_ALIGN(sizeof(struct rtattr));
825 while (RTA_OK(attr, attrlen)) {
826 if (attr->rta_type == IFLA_IFNAME) {
a2e40bb6 827 if (os_strcmp(((char *) attr) + rta_len, drv->first_bss.ifname)
7524cfb1
JM		 828 == 0)
829 return 1;
830 else
831 break;
832 }
833 attr = RTA_NEXT(attr, attrlen);
834 }
835
836 return 0;
837}
838
839
840static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv,
62d680c3 841 int ifindex, u8 *buf, size_t len)
7524cfb1
JM		 842{
843 if (drv->ifindex == ifindex)
844 return 1;
845
62d680c3 846 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) {
a2e40bb6 847 drv->first_bss.ifindex = if_nametoindex(drv->first_bss.ifname);
7524cfb1
JM		 848 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed "
849 "interface");
850 wpa_driver_nl80211_finish_drv_init(drv);
851 return 1;
852 }
853
854 return 0;
855}
856
857
36d84860
BG		 858static struct wpa_driver_nl80211_data *
859nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len)
860{
861 struct wpa_driver_nl80211_data *drv;
862 dl_list_for_each(drv, &global->interfaces,
863 struct wpa_driver_nl80211_data, list) {
864 if (wpa_driver_nl80211_own_ifindex(drv, idx, buf, len) ||
865 have_ifidx(drv, idx))
866 return drv;
867 }
868 return NULL;
869}
870
871
62d680c3
JM		 872static void wpa_driver_nl80211_event_rtm_newlink(void *ctx,
873 struct ifinfomsg *ifi,
874 u8 *buf, size_t len)
3f5285e8 875{
36d84860
BG		 876 struct nl80211_global *global = ctx;
877 struct wpa_driver_nl80211_data *drv;
62d680c3
JM		 878 int attrlen, rta_len;
879 struct rtattr *attr;
97cfcf64 880 u32 brid = 0;
aef85ba2 881 char namebuf[IFNAMSIZ];
3f5285e8 882
36d84860
BG		 883 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len);
884 if (!drv) {
97cfcf64
B		 885 wpa_printf(MSG_DEBUG, "nl80211: Ignore event for foreign "
886 "ifindex %d", ifi->ifi_index);
3f5285e8
JM		 887 return;
888 }
889
890 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x "
891 "(%s%s%s%s)",
892 drv->operstate, ifi->ifi_flags,
893 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "",
894 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "",
895 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "",
896 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : "");
a63063b4
JM		 897
898 if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) {
59d24925
JM		 899 if (if_indextoname(ifi->ifi_index, namebuf) &&
900 linux_iface_up(drv->global->ioctl_sock,
901 drv->first_bss.ifname) > 0) {
902 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down "
903 "event since interface %s is up", namebuf);
904 return;
905 }
a63063b4 906 wpa_printf(MSG_DEBUG, "nl80211: Interface down");
7d9c3698
JM		 907 if (drv->ignore_if_down_event) {
908 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down "
909 "event generated by mode change");
910 drv->ignore_if_down_event = 0;
911 } else {
912 drv->if_disabled = 1;
913 wpa_supplicant_event(drv->ctx,
914 EVENT_INTERFACE_DISABLED, NULL);
915 }
a63063b4
JM		 916 }
917
918 if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) {
aef85ba2
JM		 919 if (if_indextoname(ifi->ifi_index, namebuf) &&
920 linux_iface_up(drv->global->ioctl_sock,
921 drv->first_bss.ifname) == 0) {
922 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
923 "event since interface %s is down",
924 namebuf);
d1f4942b
JM		 925 } else if (if_nametoindex(drv->first_bss.ifname) == 0) {
926 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
927 "event since interface %s does not exist",
928 drv->first_bss.ifname);
929 } else if (drv->if_removed) {
930 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface up "
931 "event since interface %s is marked "
932 "removed", drv->first_bss.ifname);
aef85ba2
JM		 933 } else {
934 wpa_printf(MSG_DEBUG, "nl80211: Interface up");
935 drv->if_disabled = 0;
936 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED,
937 NULL);
938 }
a63063b4
JM		 939 }
940
3f5285e8
JM		 941 /*
942 * Some drivers send the association event before the operup event--in
943 * this case, lifting operstate in wpa_driver_nl80211_set_operstate()
944 * fails. This will hit us when wpa_supplicant does not need to do
945 * IEEE 802.1X authentication
946 */
947 if (drv->operstate == 1 &&
948 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP &&
949 !(ifi->ifi_flags & IFF_RUNNING))
36d84860 950 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex,
e2d02c29 951 -1, IF_OPER_UP);
3f5285e8 952
62d680c3
JM		 953 attrlen = len;
954 attr = (struct rtattr *) buf;
3f5285e8
JM		 955 rta_len = RTA_ALIGN(sizeof(struct rtattr));
956 while (RTA_OK(attr, attrlen)) {
d8816397 957 if (attr->rta_type == IFLA_IFNAME) {
7524cfb1 958 wpa_driver_nl80211_event_link(
08063178 959 drv,
7524cfb1
JM		 960 ((char *) attr) + rta_len,
961 attr->rta_len - rta_len, 0);
97cfcf64
B		 962 } else if (attr->rta_type == IFLA_MASTER)
963 brid = nla_get_u32((struct nlattr *) attr);
3f5285e8
JM		 964 attr = RTA_NEXT(attr, attrlen);
965 }
97cfcf64
B		 966
967 if (ifi->ifi_family == AF_BRIDGE && brid) {
968 /* device has been added to bridge */
97cfcf64
B		 969 if_indextoname(brid, namebuf);
970 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s",
971 brid, namebuf);
972 add_ifidx(drv, brid);
973 }
3f5285e8
JM		 974}
975
976
62d680c3
JM		 977static void wpa_driver_nl80211_event_rtm_dellink(void *ctx,
978 struct ifinfomsg *ifi,
979 u8 *buf, size_t len)
3f5285e8 980{
36d84860
BG		 981 struct nl80211_global *global = ctx;
982 struct wpa_driver_nl80211_data *drv;
62d680c3
JM		 983 int attrlen, rta_len;
984 struct rtattr *attr;
97cfcf64 985 u32 brid = 0;
3f5285e8 986
36d84860
BG		 987 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len);
988 if (!drv) {
989 wpa_printf(MSG_DEBUG, "nl80211: Ignore dellink event for "
990 "foreign ifindex %d", ifi->ifi_index);
991 return;
992 }
993
62d680c3
JM		 994 attrlen = len;
995 attr = (struct rtattr *) buf;
3f5285e8
JM		 996
997 rta_len = RTA_ALIGN(sizeof(struct rtattr));
998 while (RTA_OK(attr, attrlen)) {
999 if (attr->rta_type == IFLA_IFNAME) {
7524cfb1 1000 wpa_driver_nl80211_event_link(
08063178 1001 drv,
7524cfb1
JM		 1002 ((char *) attr) + rta_len,
1003 attr->rta_len - rta_len, 1);
97cfcf64
B		 1004 } else if (attr->rta_type == IFLA_MASTER)
1005 brid = nla_get_u32((struct nlattr *) attr);
3f5285e8
JM		 1006 attr = RTA_NEXT(attr, attrlen);
1007 }
97cfcf64
B		 1008
1009 if (ifi->ifi_family == AF_BRIDGE && brid) {
1010 /* device has been removed from bridge */
1011 char namebuf[IFNAMSIZ];
1012 if_indextoname(brid, namebuf);
1013 wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge "
1014 "%s", brid, namebuf);
1015 del_ifidx(drv, brid);
1016 }
3f5285e8
JM		 1017}
1018
1019
c2a04078
JM		 1020static void mlme_event_auth(struct wpa_driver_nl80211_data *drv,
1021 const u8 *frame, size_t len)
1022{
1023 const struct ieee80211_mgmt *mgmt;
1024 union wpa_event_data event;
1025
1026 mgmt = (const struct ieee80211_mgmt *) frame;
1027 if (len < 24 + sizeof(mgmt->u.auth)) {
1028 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
1029 "frame");
1030 return;
1031 }
1032
e6b8efeb 1033 os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN);
c2a04078
JM		 1034 os_memset(&event, 0, sizeof(event));
1035 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN);
1036 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg);
1037 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code);
1038 if (len > 24 + sizeof(mgmt->u.auth)) {
1039 event.auth.ies = mgmt->u.auth.variable;
1040 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth);
1041 }
1042
1043 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event);
1044}
1045
1046
f5a8d422
JM		 1047static unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv)
1048{
1049 struct nl_msg *msg;
1050 int ret;
1051 struct nl80211_bss_info_arg arg;
1052
1053 os_memset(&arg, 0, sizeof(arg));
1054 msg = nlmsg_alloc();
1055 if (!msg)
1056 goto nla_put_failure;
1057
9fb04070 1058 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
f5a8d422
JM		 1059 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1060
1061 arg.drv = drv;
1062 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
1063 msg = NULL;
1064 if (ret == 0) {
1065 wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the "
1066 "associated BSS from scan results: %u MHz",
1067 arg.assoc_freq);
1068 return arg.assoc_freq ? arg.assoc_freq : drv->assoc_freq;
1069 }
1070 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
1071 "(%s)", ret, strerror(-ret));
1072nla_put_failure:
1073 nlmsg_free(msg);
1074 return drv->assoc_freq;
1075}
1076
1077
c2a04078
JM		 1078static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv,
1079 const u8 *frame, size_t len)
1080{
1081 const struct ieee80211_mgmt *mgmt;
1082 union wpa_event_data event;
1083 u16 status;
1084
1085 mgmt = (const struct ieee80211_mgmt *) frame;
1086 if (len < 24 + sizeof(mgmt->u.assoc_resp)) {
1087 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
1088 "frame");
1089 return;
1090 }
1091
1092 status = le_to_host16(mgmt->u.assoc_resp.status_code);
1093 if (status != WLAN_STATUS_SUCCESS) {
efa46078 1094 os_memset(&event, 0, sizeof(event));
59ddf221 1095 event.assoc_reject.bssid = mgmt->bssid;
efa46078
JM		 1096 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
1097 event.assoc_reject.resp_ies =
1098 (u8 *) mgmt->u.assoc_resp.variable;
1099 event.assoc_reject.resp_ies_len =
1100 len - 24 - sizeof(mgmt->u.assoc_resp);
1101 }
1102 event.assoc_reject.status_code = status;
1103
1104 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
c2a04078
JM		 1105 return;
1106 }
1107
1108 drv->associated = 1;
1109 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN);
1110
1111 os_memset(&event, 0, sizeof(event));
1112 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
1113 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable;
1114 event.assoc_info.resp_ies_len =
efa46078 1115 len - 24 - sizeof(mgmt->u.assoc_resp);
c2a04078
JM		 1116 }
1117
4832ecd7
JM		 1118 event.assoc_info.freq = drv->assoc_freq;
1119
c2a04078
JM		 1120 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
1121}
1122
c1bb3e0a 1123
da72a1c1
ZY		 1124static void mlme_event_connect(struct wpa_driver_nl80211_data *drv,
1125 enum nl80211_commands cmd, struct nlattr *status,
1126 struct nlattr *addr, struct nlattr *req_ie,
1127 struct nlattr *resp_ie)
1128{
1129 union wpa_event_data event;
1130
7da2c527
JM		 1131 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
1132 /*
1133 * Avoid reporting two association events that would confuse
1134 * the core code.
1135 */
1136 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) "
1137 "when using userspace SME", cmd);
1138 return;
1139 }
1140
da72a1c1
ZY		 1141 os_memset(&event, 0, sizeof(event));
1142 if (cmd == NL80211_CMD_CONNECT &&
1143 nla_get_u16(status) != WLAN_STATUS_SUCCESS) {
df89c1c8
JM		 1144 if (addr)
1145 event.assoc_reject.bssid = nla_data(addr);
da72a1c1
ZY		 1146 if (resp_ie) {
1147 event.assoc_reject.resp_ies = nla_data(resp_ie);
1148 event.assoc_reject.resp_ies_len = nla_len(resp_ie);
1149 }
1150 event.assoc_reject.status_code = nla_get_u16(status);
1151 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
1152 return;
1153 }
1154
1155 drv->associated = 1;
1156 if (addr)
1157 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN);
1158
1159 if (req_ie) {
1160 event.assoc_info.req_ies = nla_data(req_ie);
1161 event.assoc_info.req_ies_len = nla_len(req_ie);
1162 }
1163 if (resp_ie) {
1164 event.assoc_info.resp_ies = nla_data(resp_ie);
1165 event.assoc_info.resp_ies_len = nla_len(resp_ie);
1166 }
1167
f5a8d422
JM		 1168 event.assoc_info.freq = nl80211_get_assoc_freq(drv);
1169
da72a1c1
ZY		 1170 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
1171}
c2a04078 1172
c1bb3e0a 1173
20f5a4c2 1174static void mlme_event_disconnect(struct wpa_driver_nl80211_data *drv,
3d9975d5
JM		 1175 struct nlattr *reason, struct nlattr *addr,
1176 struct nlattr *by_ap)
20f5a4c2
JM		 1177{
1178 union wpa_event_data data;
1179
1180 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
1181 /*
1182 * Avoid reporting two disassociation events that could
1183 * confuse the core code.
1184 */
1185 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect "
1186 "event when using userspace SME");
1187 return;
1188 }
1189
1190 drv->associated = 0;
1191 os_memset(&data, 0, sizeof(data));
1192 if (reason)
2e9f078c
JM		 1193 data.deauth_info.reason_code = nla_get_u16(reason);
1194 data.deauth_info.locally_generated = by_ap == NULL;
1195 wpa_supplicant_event(drv->ctx, EVENT_DEAUTH, &data);
20f5a4c2
JM		 1196}
1197
1198
1b487b8b
TP		 1199static void mlme_event_ch_switch(struct wpa_driver_nl80211_data *drv,
1200 struct nlattr *freq, struct nlattr *type)
1201{
1202 union wpa_event_data data;
1203 int ht_enabled = 1;
1204 int chan_offset = 0;
1205
1206 wpa_printf(MSG_DEBUG, "nl80211: Channel switch event");
1207
1208 if (!freq || !type)
1209 return;
1210
1211 switch (nla_get_u32(type)) {
1212 case NL80211_CHAN_NO_HT:
1213 ht_enabled = 0;
1214 break;
1215 case NL80211_CHAN_HT20:
1216 break;
1217 case NL80211_CHAN_HT40PLUS:
1218 chan_offset = 1;
1219 break;
1220 case NL80211_CHAN_HT40MINUS:
1221 chan_offset = -1;
1222 break;
1223 }
1224
1225 data.ch_switch.freq = nla_get_u32(freq);
1226 data.ch_switch.ht_enabled = ht_enabled;
1227 data.ch_switch.ch_offset = chan_offset;
1228
1229 wpa_supplicant_event(drv->ctx, EVENT_CH_SWITCH, &data);
1230}
1231
1232
da1fb17c
JM		 1233static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv,
1234 enum nl80211_commands cmd, struct nlattr *addr)
1235{
1236 union wpa_event_data event;
1237 enum wpa_event_type ev;
1238
1239 if (nla_len(addr) != ETH_ALEN)
1240 return;
1241
1242 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR,
1243 cmd, MAC2STR((u8 *) nla_data(addr)));
1244
1245 if (cmd == NL80211_CMD_AUTHENTICATE)
1246 ev = EVENT_AUTH_TIMED_OUT;
1247 else if (cmd == NL80211_CMD_ASSOCIATE)
1248 ev = EVENT_ASSOC_TIMED_OUT;
1249 else
1250 return;
1251
1252 os_memset(&event, 0, sizeof(event));
1253 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN);
1254 wpa_supplicant_event(drv->ctx, ev, &event);
1255}
1256
1257
5582a5d1 1258static void mlme_event_mgmt(struct wpa_driver_nl80211_data *drv,
da873dbb
JB		 1259 struct nlattr *freq, struct nlattr *sig,
1260 const u8 *frame, size_t len)
58f6fbe0
JM		 1261{
1262 const struct ieee80211_mgmt *mgmt;
1263 union wpa_event_data event;
1264 u16 fc, stype;
da873dbb 1265 int ssi_signal = 0;
58f6fbe0
JM		 1266
1267 mgmt = (const struct ieee80211_mgmt *) frame;
1268 if (len < 24) {
1269 wpa_printf(MSG_DEBUG, "nl80211: Too short action frame");
1270 return;
1271 }
1272
1273 fc = le_to_host16(mgmt->frame_control);
1274 stype = WLAN_FC_GET_STYPE(fc);
1275
da873dbb
JB		 1276 if (sig)
1277 ssi_signal = (s32) nla_get_u32(sig);
1278
58f6fbe0 1279 os_memset(&event, 0, sizeof(event));
5582a5d1 1280 if (freq) {
58f6fbe0 1281 event.rx_action.freq = nla_get_u32(freq);
5582a5d1
JB		 1282 drv->last_mgmt_freq = event.rx_action.freq;
1283 }
1284 if (stype == WLAN_FC_STYPE_ACTION) {
1285 event.rx_action.da = mgmt->da;
1286 event.rx_action.sa = mgmt->sa;
1287 event.rx_action.bssid = mgmt->bssid;
1288 event.rx_action.category = mgmt->u.action.category;
1289 event.rx_action.data = &mgmt->u.action.category + 1;
1290 event.rx_action.len = frame + len - event.rx_action.data;
1291 wpa_supplicant_event(drv->ctx, EVENT_RX_ACTION, &event);
1292 } else {
1293 event.rx_mgmt.frame = frame;
1294 event.rx_mgmt.frame_len = len;
da873dbb 1295 event.rx_mgmt.ssi_signal = ssi_signal;
5582a5d1
JB		 1296 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
1297 }
58f6fbe0
JM		 1298}
1299
1300
a11241fa
JB		 1301static void mlme_event_mgmt_tx_status(struct wpa_driver_nl80211_data *drv,
1302 struct nlattr *cookie, const u8 *frame,
1303 size_t len, struct nlattr *ack)
58f6fbe0
JM		 1304{
1305 union wpa_event_data event;
1306 const struct ieee80211_hdr *hdr;
1307 u16 fc;
58f6fbe0 1308
a11241fa
JB		 1309 if (!is_ap_interface(drv->nlmode)) {
1310 u64 cookie_val;
58f6fbe0 1311
a11241fa
JB		 1312 if (!cookie)
1313 return;
1314
1315 cookie_val = nla_get_u64(cookie);
1316 wpa_printf(MSG_DEBUG, "nl80211: Action TX status:"
1317 " cookie=0%llx%s (ack=%d)",
1318 (long long unsigned int) cookie_val,
1319 cookie_val == drv->send_action_cookie ?
1320 " (match)" : " (unknown)", ack != NULL);
1321 if (cookie_val != drv->send_action_cookie)
1322 return;
1323 }
58f6fbe0
JM		 1324
1325 hdr = (const struct ieee80211_hdr *) frame;
1326 fc = le_to_host16(hdr->frame_control);
1327
1328 os_memset(&event, 0, sizeof(event));
1329 event.tx_status.type = WLAN_FC_GET_TYPE(fc);
1330 event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
1331 event.tx_status.dst = hdr->addr1;
1332 event.tx_status.data = frame;
1333 event.tx_status.data_len = len;
1334 event.tx_status.ack = ack != NULL;
1335 wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event);
1336}
1337
1338
0544b242
JM		 1339static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv,
1340 enum wpa_event_type type,
1341 const u8 *frame, size_t len)
1342{
1343 const struct ieee80211_mgmt *mgmt;
1344 union wpa_event_data event;
1345 const u8 *bssid = NULL;
1346 u16 reason_code = 0;
1347
cb30b297
PS		 1348 mgmt = (const struct ieee80211_mgmt *) frame;
1349 if (len >= 24) {
1350 bssid = mgmt->bssid;
1351
1352 if (drv->associated != 0 &&
1353 os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 &&
1354 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) {
1355 /*
1356 * We have presumably received this deauth as a
1357 * response to a clear_state_mismatch() outgoing
1358 * deauth. Don't let it take us offline!
1359 */
1360 wpa_printf(MSG_DEBUG, "nl80211: Deauth received "
1361 "from Unknown BSSID " MACSTR " -- ignoring",
1362 MAC2STR(bssid));
1363 return;
1364 }
1365 }
1366
0544b242
JM		 1367 drv->associated = 0;
1368 os_memset(&event, 0, sizeof(event));
1369
0544b242
JM		 1370 /* Note: Same offset for Reason Code in both frame subtypes */
1371 if (len >= 24 + sizeof(mgmt->u.deauth))
1372 reason_code = le_to_host16(mgmt->u.deauth.reason_code);
1373
1374 if (type == EVENT_DISASSOC) {
3d9975d5
JM		 1375 event.disassoc_info.locally_generated =
1376 !os_memcmp(mgmt->sa, drv->first_bss.addr, ETH_ALEN);
0544b242
JM		 1377 event.disassoc_info.addr = bssid;
1378 event.disassoc_info.reason_code = reason_code;
046b26a2
JM		 1379 if (frame + len > mgmt->u.disassoc.variable) {
1380 event.disassoc_info.ie = mgmt->u.disassoc.variable;
1381 event.disassoc_info.ie_len = frame + len -
1382 mgmt->u.disassoc.variable;
1383 }
0544b242 1384 } else {
3d9975d5
JM		 1385 event.deauth_info.locally_generated =
1386 !os_memcmp(mgmt->sa, drv->first_bss.addr, ETH_ALEN);
0544b242
JM		 1387 event.deauth_info.addr = bssid;
1388 event.deauth_info.reason_code = reason_code;
046b26a2
JM		 1389 if (frame + len > mgmt->u.deauth.variable) {
1390 event.deauth_info.ie = mgmt->u.deauth.variable;
1391 event.deauth_info.ie_len = frame + len -
1392 mgmt->u.deauth.variable;
1393 }
0544b242
JM		 1394 }
1395
1396 wpa_supplicant_event(drv->ctx, type, &event);
1397}
1398
1399
7d878ca7
JM		 1400static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv,
1401 enum wpa_event_type type,
1402 const u8 *frame, size_t len)
1403{
1404 const struct ieee80211_mgmt *mgmt;
1405 union wpa_event_data event;
1406 u16 reason_code = 0;
1407
1408 if (len < 24)
1409 return;
1410
1411 mgmt = (const struct ieee80211_mgmt *) frame;
1412
1413 os_memset(&event, 0, sizeof(event));
1414 /* Note: Same offset for Reason Code in both frame subtypes */
1415 if (len >= 24 + sizeof(mgmt->u.deauth))
1416 reason_code = le_to_host16(mgmt->u.deauth.reason_code);
1417
1418 if (type == EVENT_UNPROT_DISASSOC) {
1419 event.unprot_disassoc.sa = mgmt->sa;
1420 event.unprot_disassoc.da = mgmt->da;
1421 event.unprot_disassoc.reason_code = reason_code;
1422 } else {
1423 event.unprot_deauth.sa = mgmt->sa;
1424 event.unprot_deauth.da = mgmt->da;
1425 event.unprot_deauth.reason_code = reason_code;
1426 }
1427
1428 wpa_supplicant_event(drv->ctx, type, &event);
1429}
1430
1431
c2a04078 1432static void mlme_event(struct wpa_driver_nl80211_data *drv,
da1fb17c 1433 enum nl80211_commands cmd, struct nlattr *frame,
58f6fbe0
JM		 1434 struct nlattr *addr, struct nlattr *timed_out,
1435 struct nlattr *freq, struct nlattr *ack,
da873dbb 1436 struct nlattr *cookie, struct nlattr *sig)
c2a04078 1437{
da1fb17c
JM		 1438 if (timed_out && addr) {
1439 mlme_timeout_event(drv, cmd, addr);
1440 return;
1441 }
1442
c2a04078
JM		 1443 if (frame == NULL) {
1444 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d without frame "
1445 "data", cmd);
1446 return;
1447 }
1448
1449 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d", cmd);
1450 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame",
1451 nla_data(frame), nla_len(frame));
1452
1453 switch (cmd) {
1454 case NL80211_CMD_AUTHENTICATE:
1455 mlme_event_auth(drv, nla_data(frame), nla_len(frame));
1456 break;
1457 case NL80211_CMD_ASSOCIATE:
1458 mlme_event_assoc(drv, nla_data(frame), nla_len(frame));
1459 break;
1460 case NL80211_CMD_DEAUTHENTICATE:
0544b242
JM		 1461 mlme_event_deauth_disassoc(drv, EVENT_DEAUTH,
1462 nla_data(frame), nla_len(frame));
c2a04078
JM		 1463 break;
1464 case NL80211_CMD_DISASSOCIATE:
0544b242
JM		 1465 mlme_event_deauth_disassoc(drv, EVENT_DISASSOC,
1466 nla_data(frame), nla_len(frame));
c2a04078 1467 break;
bd94971e 1468 case NL80211_CMD_FRAME:
da873dbb
JB		 1469 mlme_event_mgmt(drv, freq, sig, nla_data(frame),
1470 nla_len(frame));
58f6fbe0 1471 break;
bd94971e 1472 case NL80211_CMD_FRAME_TX_STATUS:
a11241fa
JB		 1473 mlme_event_mgmt_tx_status(drv, cookie, nla_data(frame),
1474 nla_len(frame), ack);
58f6fbe0 1475 break;
7d878ca7
JM		 1476 case NL80211_CMD_UNPROT_DEAUTHENTICATE:
1477 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH,
1478 nla_data(frame), nla_len(frame));
1479 break;
1480 case NL80211_CMD_UNPROT_DISASSOCIATE:
1481 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC,
1482 nla_data(frame), nla_len(frame));
1483 break;
c2a04078
JM		 1484 default:
1485 break;
1486 }
1487}
1488
1489
35583f3f
JM		 1490static void mlme_event_michael_mic_failure(struct wpa_driver_nl80211_data *drv,
1491 struct nlattr *tb[])
1492{
1493 union wpa_event_data data;
1494
1495 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure");
1496 os_memset(&data, 0, sizeof(data));
1497 if (tb[NL80211_ATTR_MAC]) {
1498 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address",
1499 nla_data(tb[NL80211_ATTR_MAC]),
1500 nla_len(tb[NL80211_ATTR_MAC]));
ad1e68e6 1501 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]);
35583f3f
JM		 1502 }
1503 if (tb[NL80211_ATTR_KEY_SEQ]) {
1504 wpa_hexdump(MSG_DEBUG, "nl80211: TSC",
1505 nla_data(tb[NL80211_ATTR_KEY_SEQ]),
1506 nla_len(tb[NL80211_ATTR_KEY_SEQ]));
1507 }
1508 if (tb[NL80211_ATTR_KEY_TYPE]) {
1509 enum nl80211_key_type key_type =
1510 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]);
1511 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type);
1512 if (key_type == NL80211_KEYTYPE_PAIRWISE)
1513 data.michael_mic_failure.unicast = 1;
1514 } else
1515 data.michael_mic_failure.unicast = 1;
1516
1517 if (tb[NL80211_ATTR_KEY_IDX]) {
1518 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]);
1519 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id);
1520 }
1521
1522 wpa_supplicant_event(drv->ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
1523}
1524
1525
5cc4d64b
JM		 1526static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv,
1527 struct nlattr *tb[])
1528{
1529 if (tb[NL80211_ATTR_MAC] == NULL) {
1530 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined "
1531 "event");
1532 return;
1533 }
1534 os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
1535 drv->associated = 1;
1536 wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined",
1537 MAC2STR(drv->bssid));
1538
1539 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL);
1540}
1541
1542
55777702
JM		 1543static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv,
1544 int cancel_event, struct nlattr *tb[])
1545{
1546 unsigned int freq, chan_type, duration;
1547 union wpa_event_data data;
1548 u64 cookie;
1549
1550 if (tb[NL80211_ATTR_WIPHY_FREQ])
1551 freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]);
1552 else
1553 freq = 0;
1554
1555 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
1556 chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1557 else
1558 chan_type = 0;
1559
1560 if (tb[NL80211_ATTR_DURATION])
1561 duration = nla_get_u32(tb[NL80211_ATTR_DURATION]);
1562 else
1563 duration = 0;
1564
1565 if (tb[NL80211_ATTR_COOKIE])
1566 cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
1567 else
1568 cookie = 0;
1569
1570 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d "
1571 "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))",
1572 cancel_event, freq, chan_type, duration,
1573 (long long unsigned int) cookie,
1574 cookie == drv->remain_on_chan_cookie ? "match" : "unknown");
1575
1576 if (cookie != drv->remain_on_chan_cookie)
1577 return; /* not for us */
1578
531f0331
JB		 1579 if (cancel_event)
1580 drv->pending_remain_on_chan = 0;
55777702
JM		 1581
1582 os_memset(&data, 0, sizeof(data));
1583 data.remain_on_channel.freq = freq;
1584 data.remain_on_channel.duration = duration;
1585 wpa_supplicant_event(drv->ctx, cancel_event ?
1586 EVENT_CANCEL_REMAIN_ON_CHANNEL :
1587 EVENT_REMAIN_ON_CHANNEL, &data);
1588}
1589
1590
8d923a4a
JM		 1591static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted,
1592 struct nlattr *tb[])
1593{
1594 union wpa_event_data event;
1595 struct nlattr *nl;
1596 int rem;
1597 struct scan_info *info;
1598#define MAX_REPORT_FREQS 50
1599 int freqs[MAX_REPORT_FREQS];
1600 int num_freqs = 0;
1601
536fd62d
JM		 1602 if (drv->scan_for_auth) {
1603 drv->scan_for_auth = 0;
1604 wpa_printf(MSG_DEBUG, "nl80211: Scan results for missing "
1605 "cfg80211 BSS entry");
1606 wpa_driver_nl80211_authenticate_retry(drv);
1607 return;
1608 }
1609
8d923a4a
JM		 1610 os_memset(&event, 0, sizeof(event));
1611 info = &event.scan_info;
1612 info->aborted = aborted;
1613
1614 if (tb[NL80211_ATTR_SCAN_SSIDS]) {
1615 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) {
1616 struct wpa_driver_scan_ssid *s =
1617 &info->ssids[info->num_ssids];
1618 s->ssid = nla_data(nl);
1619 s->ssid_len = nla_len(nl);
1620 info->num_ssids++;
1621 if (info->num_ssids == WPAS_MAX_SCAN_SSIDS)
1622 break;
1623 }
1624 }
1625 if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) {
1626 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem)
1627 {
1628 freqs[num_freqs] = nla_get_u32(nl);
1629 num_freqs++;
1630 if (num_freqs == MAX_REPORT_FREQS - 1)
1631 break;
1632 }
1633 info->freqs = freqs;
1634 info->num_freqs = num_freqs;
1635 }
1636 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event);
1637}
1638
1639
60a972a6
JM		 1640static int get_link_signal(struct nl_msg *msg, void *arg)
1641{
1642 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1643 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1644 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1];
1645 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = {
1646 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 },
1647 };
7ee35bf3
PS		 1648 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1];
1649 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = {
1650 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 },
1651 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 },
1652 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG },
1653 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG },
1654 };
1c5c7273 1655 struct wpa_signal_info *sig_change = arg;
60a972a6
JM		 1656
1657 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1658 genlmsg_attrlen(gnlh, 0), NULL);
1659 if (!tb[NL80211_ATTR_STA_INFO] ||
1660 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX,
1661 tb[NL80211_ATTR_STA_INFO], policy))
1662 return NL_SKIP;
1663 if (!sinfo[NL80211_STA_INFO_SIGNAL])
1664 return NL_SKIP;
1665
7ee35bf3
PS		 1666 sig_change->current_signal =
1667 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]);
1668
1669 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) {
1670 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX,
1671 sinfo[NL80211_STA_INFO_TX_BITRATE],
1672 rate_policy)) {
1673 sig_change->current_txrate = 0;
1674 } else {
1675 if (rinfo[NL80211_RATE_INFO_BITRATE]) {
1676 sig_change->current_txrate =
1677 nla_get_u16(rinfo[
1678 NL80211_RATE_INFO_BITRATE]) * 100;
1679 }
1680 }
1681 }
1682
60a972a6
JM		 1683 return NL_SKIP;
1684}
1685
1686
1687static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv,
1c5c7273 1688 struct wpa_signal_info *sig)
60a972a6
JM		 1689{
1690 struct nl_msg *msg;
1691
7ee35bf3
PS		 1692 sig->current_signal = -9999;
1693 sig->current_txrate = 0;
60a972a6
JM		 1694
1695 msg = nlmsg_alloc();
1696 if (!msg)
1697 return -ENOMEM;
1698
9fb04070 1699 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION);
60a972a6
JM		 1700
1701 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1702 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
1703
1704 return send_and_recv_msgs(drv, msg, get_link_signal, sig);
1705 nla_put_failure:
5883168a 1706 nlmsg_free(msg);
60a972a6
JM		 1707 return -ENOBUFS;
1708}
1709
1710
7ee35bf3
PS		 1711static int get_link_noise(struct nl_msg *msg, void *arg)
1712{
1713 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1714 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1715 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
1716 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
1717 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
1718 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
1719 };
1c5c7273 1720 struct wpa_signal_info *sig_change = arg;
7ee35bf3
PS		 1721
1722 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1723 genlmsg_attrlen(gnlh, 0), NULL);
1724
1725 if (!tb[NL80211_ATTR_SURVEY_INFO]) {
1726 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!");
1727 return NL_SKIP;
1728 }
1729
1730 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
1731 tb[NL80211_ATTR_SURVEY_INFO],
1732 survey_policy)) {
1733 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested "
1734 "attributes!");
1735 return NL_SKIP;
1736 }
1737
1738 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY])
1739 return NL_SKIP;
1740
1741 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) !=
1742 sig_change->frequency)
1743 return NL_SKIP;
1744
1745 if (!sinfo[NL80211_SURVEY_INFO_NOISE])
1746 return NL_SKIP;
1747
1748 sig_change->current_noise =
1749 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
1750
1751 return NL_SKIP;
1752}
1753
1754
1755static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv,
1c5c7273 1756 struct wpa_signal_info *sig_change)
7ee35bf3
PS		 1757{
1758 struct nl_msg *msg;
1759
1760 sig_change->current_noise = 9999;
1761 sig_change->frequency = drv->assoc_freq;
1762
1763 msg = nlmsg_alloc();
1764 if (!msg)
1765 return -ENOMEM;
1766
9fb04070 1767 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
7ee35bf3
PS		 1768
1769 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1770
1771 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change);
1772 nla_put_failure:
5883168a 1773 nlmsg_free(msg);
7ee35bf3
PS		 1774 return -ENOBUFS;
1775}
1776
1777
577db0ae
GM		 1778static int get_noise_for_scan_results(struct nl_msg *msg, void *arg)
1779{
1780 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1781 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1782 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
1783 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
1784 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
1785 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
1786 };
1787 struct wpa_scan_results *scan_results = arg;
1788 struct wpa_scan_res *scan_res;
1789 size_t i;
1790
1791 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1792 genlmsg_attrlen(gnlh, 0), NULL);
1793
1794 if (!tb[NL80211_ATTR_SURVEY_INFO]) {
1795 wpa_printf(MSG_DEBUG, "nl80211: Survey data missing");
1796 return NL_SKIP;
1797 }
1798
1799 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
1800 tb[NL80211_ATTR_SURVEY_INFO],
1801 survey_policy)) {
1802 wpa_printf(MSG_DEBUG, "nl80211: Failed to parse nested "
1803 "attributes");
1804 return NL_SKIP;
1805 }
1806
1807 if (!sinfo[NL80211_SURVEY_INFO_NOISE])
1808 return NL_SKIP;
1809
1810 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY])
1811 return NL_SKIP;
1812
1813 for (i = 0; i < scan_results->num; ++i) {
1814 scan_res = scan_results->res[i];
1815 if (!scan_res)
1816 continue;
1817 if ((int) nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) !=
1818 scan_res->freq)
1819 continue;
1820 if (!(scan_res->flags & WPA_SCAN_NOISE_INVALID))
1821 continue;
1822 scan_res->noise = (s8)
1823 nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
1824 scan_res->flags &= ~WPA_SCAN_NOISE_INVALID;
1825 }
1826
1827 return NL_SKIP;
1828}
1829
1830
1831static int nl80211_get_noise_for_scan_results(
1832 struct wpa_driver_nl80211_data *drv,
1833 struct wpa_scan_results *scan_res)
1834{
1835 struct nl_msg *msg;
1836
1837 msg = nlmsg_alloc();
1838 if (!msg)
1839 return -ENOMEM;
1840
1841 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
1842
1843 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1844
1845 return send_and_recv_msgs(drv, msg, get_noise_for_scan_results,
1846 scan_res);
1847 nla_put_failure:
9e088e74 1848 nlmsg_free(msg);
577db0ae
GM		 1849 return -ENOBUFS;
1850}
1851
1852
93910401
JM		 1853static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv,
1854 struct nlattr *tb[])
1855{
1856 static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
1857 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
1858 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 },
1859 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
0d7e5a3a 1860 [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 },
93910401
JM		 1861 };
1862 struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1];
1863 enum nl80211_cqm_rssi_threshold_event event;
b625473c 1864 union wpa_event_data ed;
1c5c7273 1865 struct wpa_signal_info sig;
7ee35bf3 1866 int res;
93910401
JM		 1867
1868 if (tb[NL80211_ATTR_CQM] == NULL ||
1869 nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM],
1870 cqm_policy)) {
1871 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event");
1872 return;
1873 }
1874
0d7e5a3a
JB		 1875 os_memset(&ed, 0, sizeof(ed));
1876
1877 if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) {
1878 if (!tb[NL80211_ATTR_MAC])
1879 return;
1880 os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]),
1881 ETH_ALEN);
1882 wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed);
1883 return;
1884 }
1885
93910401
JM		 1886 if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL)
1887 return;
1888 event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]);
b625473c 1889
93910401
JM		 1890 if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) {
1891 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
1892 "event: RSSI high");
b625473c 1893 ed.signal_change.above_threshold = 1;
93910401
JM		 1894 } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) {
1895 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
1896 "event: RSSI low");
b625473c
JM		 1897 ed.signal_change.above_threshold = 0;
1898 } else
1899 return;
1900
60a972a6
JM		 1901 res = nl80211_get_link_signal(drv, &sig);
1902 if (res == 0) {
7ee35bf3
PS		 1903 ed.signal_change.current_signal = sig.current_signal;
1904 ed.signal_change.current_txrate = sig.current_txrate;
1905 wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d",
1906 sig.current_signal, sig.current_txrate);
1907 }
1908
1909 res = nl80211_get_link_noise(drv, &sig);
1910 if (res == 0) {
1911 ed.signal_change.current_noise = sig.current_noise;
1912 wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm",
1913 sig.current_noise);
60a972a6
JM		 1914 }
1915
b625473c 1916 wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed);
93910401
JM		 1917}
1918
1919
18d2ba08
JM		 1920static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv,
1921 struct nlattr **tb)
1922{
1923 u8 *addr;
1924 union wpa_event_data data;
1925
1926 if (tb[NL80211_ATTR_MAC] == NULL)
1927 return;
1928 addr = nla_data(tb[NL80211_ATTR_MAC]);
1929 wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr));
5f310a9e 1930
61cbe2ff 1931 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) {
5f310a9e
JM		 1932 u8 *ies = NULL;
1933 size_t ies_len = 0;
1934 if (tb[NL80211_ATTR_IE]) {
1935 ies = nla_data(tb[NL80211_ATTR_IE]);
1936 ies_len = nla_len(tb[NL80211_ATTR_IE]);
1937 }
1938 wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len);
1939 drv_event_assoc(drv->ctx, addr, ies, ies_len, 0);
1940 return;
1941 }
1942
18d2ba08
JM		 1943 if (drv->nlmode != NL80211_IFTYPE_ADHOC)
1944 return;
1945
1946 os_memset(&data, 0, sizeof(data));
1947 os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN);
1948 wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data);
1949}
1950
1951
ef985058
JM		 1952static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv,
1953 struct nlattr **tb)
1954{
1955 u8 *addr;
1956 union wpa_event_data data;
1957
1958 if (tb[NL80211_ATTR_MAC] == NULL)
1959 return;
1960 addr = nla_data(tb[NL80211_ATTR_MAC]);
1961 wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR,
1962 MAC2STR(addr));
5f310a9e 1963
61cbe2ff 1964 if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) {
5f310a9e
JM		 1965 drv_event_disassoc(drv->ctx, addr);
1966 return;
1967 }
1968
ef985058
JM		 1969 if (drv->nlmode != NL80211_IFTYPE_ADHOC)
1970 return;
1971
1972 os_memset(&data, 0, sizeof(data));
1973 os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN);
1974 wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data);
1975}
1976
1977
b14a210c
JB		 1978static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv,
1979 struct nlattr **tb)
1980{
1981 struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA];
1982 static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = {
1983 [NL80211_REKEY_DATA_KEK] = {
1984 .minlen = NL80211_KEK_LEN,
1985 .maxlen = NL80211_KEK_LEN,
1986 },
1987 [NL80211_REKEY_DATA_KCK] = {
1988 .minlen = NL80211_KCK_LEN,
1989 .maxlen = NL80211_KCK_LEN,
1990 },
1991 [NL80211_REKEY_DATA_REPLAY_CTR] = {
1992 .minlen = NL80211_REPLAY_CTR_LEN,
1993 .maxlen = NL80211_REPLAY_CTR_LEN,
1994 },
1995 };
1996 union wpa_event_data data;
1997
1998 if (!tb[NL80211_ATTR_MAC])
1999 return;
2000 if (!tb[NL80211_ATTR_REKEY_DATA])
2001 return;
2002 if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA,
2003 tb[NL80211_ATTR_REKEY_DATA], rekey_policy))
2004 return;
2005 if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR])
2006 return;
2007
2008 os_memset(&data, 0, sizeof(data));
2009 data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]);
2010 wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR,
2011 MAC2STR(data.driver_gtk_rekey.bssid));
2012 data.driver_gtk_rekey.replay_ctr =
2013 nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]);
2014 wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter",
2015 data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN);
2016 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data);
2017}
2018
2019
c36d5242
JM		 2020static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv,
2021 struct nlattr **tb)
2022{
2023 struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE];
2024 static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = {
2025 [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 },
2026 [NL80211_PMKSA_CANDIDATE_BSSID] = {
2027 .minlen = ETH_ALEN,
2028 .maxlen = ETH_ALEN,
2029 },
2030 [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG },
2031 };
2032 union wpa_event_data data;
2033
2034 if (!tb[NL80211_ATTR_PMKSA_CANDIDATE])
2035 return;
2036 if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE,
2037 tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy))
2038 return;
2039 if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] ||
2040 !cand[NL80211_PMKSA_CANDIDATE_BSSID])
2041 return;
2042
2043 os_memset(&data, 0, sizeof(data));
2044 os_memcpy(data.pmkid_candidate.bssid,
2045 nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN);
2046 data.pmkid_candidate.index =
2047 nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]);
2048 data.pmkid_candidate.preauth =
2049 cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL;
2050 wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data);
2051}
2052
2053
39718852
JB		 2054static void nl80211_client_probe_event(struct wpa_driver_nl80211_data *drv,
2055 struct nlattr **tb)
2056{
2057 union wpa_event_data data;
2058
2059 if (!tb[NL80211_ATTR_MAC] || !tb[NL80211_ATTR_ACK])
2060 return;
2061
2062 os_memset(&data, 0, sizeof(data));
2063 os_memcpy(data.client_poll.addr,
2064 nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
2065
2066 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_CLIENT_POLL_OK, &data);
2067}
2068
2069
3088e4e5
JB		 2070static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb,
2071 int wds)
02bb32c3
JB		 2072{
2073 struct wpa_driver_nl80211_data *drv = bss->drv;
2074 union wpa_event_data event;
02bb32c3
JB		 2075
2076 if (!tb[NL80211_ATTR_MAC])
2077 return;
2078
02bb32c3 2079 os_memset(&event, 0, sizeof(event));
341eebee 2080 event.rx_from_unknown.bssid = bss->addr;
02bb32c3 2081 event.rx_from_unknown.addr = nla_data(tb[NL80211_ATTR_MAC]);
3088e4e5 2082 event.rx_from_unknown.wds = wds;
02bb32c3
JB		 2083
2084 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event);
2085}
2086
2087
d6c9aab8
JB		 2088static void do_process_drv_event(struct wpa_driver_nl80211_data *drv,
2089 int cmd, struct nlattr **tb)
97865538 2090{
b1f625e0 2091 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED &&
d6c9aab8
JB		 2092 (cmd == NL80211_CMD_NEW_SCAN_RESULTS ||
2093 cmd == NL80211_CMD_SCAN_ABORTED)) {
a2e40bb6 2094 wpa_driver_nl80211_set_mode(&drv->first_bss,
b1f625e0
EP		 2095 drv->ap_scan_as_station);
2096 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
ad1e68e6
JM		 2097 }
2098
d6c9aab8 2099 switch (cmd) {
d942a79e
JM		 2100 case NL80211_CMD_TRIGGER_SCAN:
2101 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger");
2102 break;
d21c63b9
LC		 2103 case NL80211_CMD_START_SCHED_SCAN:
2104 wpa_printf(MSG_DEBUG, "nl80211: Sched scan started");
2105 break;
2106 case NL80211_CMD_SCHED_SCAN_STOPPED:
2107 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stopped");
2108 wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL);
2109 break;
97865538
JM		 2110 case NL80211_CMD_NEW_SCAN_RESULTS:
2111 wpa_printf(MSG_DEBUG, "nl80211: New scan results available");
2112 drv->scan_complete_events = 1;
2113 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
2114 drv->ctx);
8d923a4a 2115 send_scan_event(drv, 0, tb);
97865538 2116 break;
d21c63b9
LC		 2117 case NL80211_CMD_SCHED_SCAN_RESULTS:
2118 wpa_printf(MSG_DEBUG,
2119 "nl80211: New sched scan results available");
2120 send_scan_event(drv, 0, tb);
2121 break;
97865538
JM		 2122 case NL80211_CMD_SCAN_ABORTED:
2123 wpa_printf(MSG_DEBUG, "nl80211: Scan aborted");
2124 /*
2125 * Need to indicate that scan results are available in order
2126 * not to make wpa_supplicant stop its scanning.
2127 */
2128 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
2129 drv->ctx);
8d923a4a 2130 send_scan_event(drv, 1, tb);
97865538 2131 break;
c2a04078
JM		 2132 case NL80211_CMD_AUTHENTICATE:
2133 case NL80211_CMD_ASSOCIATE:
2134 case NL80211_CMD_DEAUTHENTICATE:
2135 case NL80211_CMD_DISASSOCIATE:
bd94971e 2136 case NL80211_CMD_FRAME_TX_STATUS:
7d878ca7
JM		 2137 case NL80211_CMD_UNPROT_DEAUTHENTICATE:
2138 case NL80211_CMD_UNPROT_DISASSOCIATE:
d6c9aab8 2139 mlme_event(drv, cmd, tb[NL80211_ATTR_FRAME],
58f6fbe0
JM		 2140 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT],
2141 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK],
da873dbb
JB		 2142 tb[NL80211_ATTR_COOKIE],
2143 tb[NL80211_ATTR_RX_SIGNAL_DBM]);
c2a04078 2144 break;
da72a1c1
ZY		 2145 case NL80211_CMD_CONNECT:
2146 case NL80211_CMD_ROAM:
d6c9aab8 2147 mlme_event_connect(drv, cmd,
da72a1c1
ZY		 2148 tb[NL80211_ATTR_STATUS_CODE],
2149 tb[NL80211_ATTR_MAC],
2150 tb[NL80211_ATTR_REQ_IE],
2151 tb[NL80211_ATTR_RESP_IE]);
2152 break;
1b487b8b
TP		 2153 case NL80211_CMD_CH_SWITCH_NOTIFY:
2154 mlme_event_ch_switch(drv, tb[NL80211_ATTR_WIPHY_FREQ],
2155 tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
2156 break;
da72a1c1 2157 case NL80211_CMD_DISCONNECT:
20f5a4c2 2158 mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE],
3d9975d5
JM		 2159 tb[NL80211_ATTR_MAC],
2160 tb[NL80211_ATTR_DISCONNECTED_BY_AP]);
da72a1c1 2161 break;
35583f3f
JM		 2162 case NL80211_CMD_MICHAEL_MIC_FAILURE:
2163 mlme_event_michael_mic_failure(drv, tb);
2164 break;
5cc4d64b
JM		 2165 case NL80211_CMD_JOIN_IBSS:
2166 mlme_event_join_ibss(drv, tb);
2167 break;
55777702
JM		 2168 case NL80211_CMD_REMAIN_ON_CHANNEL:
2169 mlme_event_remain_on_channel(drv, 0, tb);
2170 break;
2171 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL:
2172 mlme_event_remain_on_channel(drv, 1, tb);
2173 break;
93910401
JM		 2174 case NL80211_CMD_NOTIFY_CQM:
2175 nl80211_cqm_event(drv, tb);
2176 break;
33c5deb8
JM		 2177 case NL80211_CMD_REG_CHANGE:
2178 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change");
2179 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED,
2180 NULL);
2181 break;
2182 case NL80211_CMD_REG_BEACON_HINT:
2183 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint");
2184 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED,
2185 NULL);
2186 break;
18d2ba08
JM		 2187 case NL80211_CMD_NEW_STATION:
2188 nl80211_new_station_event(drv, tb);
2189 break;
ef985058
JM		 2190 case NL80211_CMD_DEL_STATION:
2191 nl80211_del_station_event(drv, tb);
2192 break;
b14a210c
JB		 2193 case NL80211_CMD_SET_REKEY_OFFLOAD:
2194 nl80211_rekey_offload_event(drv, tb);
2195 break;
c36d5242
JM		 2196 case NL80211_CMD_PMKSA_CANDIDATE:
2197 nl80211_pmksa_candidate_event(drv, tb);
2198 break;
39718852
JB		 2199 case NL80211_CMD_PROBE_CLIENT:
2200 nl80211_client_probe_event(drv, tb);
2201 break;
97865538 2202 default:
c2a04078 2203 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event "
d6c9aab8 2204 "(cmd=%d)", cmd);
97865538
JM		 2205 break;
2206 }
d6c9aab8
JB		 2207}
2208
2209
2210static int process_drv_event(struct nl_msg *msg, void *arg)
2211{
2212 struct wpa_driver_nl80211_data *drv = arg;
2213 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2214 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2215
2216 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2217 genlmsg_attrlen(gnlh, 0), NULL);
2218
2219 if (tb[NL80211_ATTR_IFINDEX]) {
2220 int ifindex = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
2221 if (ifindex != drv->ifindex && !have_ifidx(drv, ifindex)) {
2222 wpa_printf(MSG_DEBUG, "nl80211: Ignored event (cmd=%d)"
2223 " for foreign interface (ifindex %d)",
2224 gnlh->cmd, ifindex);
2225 return NL_SKIP;
2226 }
2227 }
2228
2229 do_process_drv_event(drv, gnlh->cmd, tb);
2230 return NL_SKIP;
2231}
2232
2233
2234static int process_global_event(struct nl_msg *msg, void *arg)
2235{
2236 struct nl80211_global *global = arg;
2237 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2238 struct nlattr *tb[NL80211_ATTR_MAX + 1];
24b5bd8b 2239 struct wpa_driver_nl80211_data *drv, *tmp;
d6c9aab8
JB		 2240 int ifidx = -1;
2241
2242 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2243 genlmsg_attrlen(gnlh, 0), NULL);
2244
2245 if (tb[NL80211_ATTR_IFINDEX])
2246 ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
2247
24b5bd8b
JB		 2248 dl_list_for_each_safe(drv, tmp, &global->interfaces,
2249 struct wpa_driver_nl80211_data, list) {
d6c9aab8
JB		 2250 if (ifidx == -1 || ifidx == drv->ifindex ||
2251 have_ifidx(drv, ifidx))
2252 do_process_drv_event(drv, gnlh->cmd, tb);
2253 }
97865538
JM		 2254
2255 return NL_SKIP;
2256}
2257
2258
cc7a48d1
JB		 2259static int process_bss_event(struct nl_msg *msg, void *arg)
2260{
a11241fa 2261 struct i802_bss *bss = arg;
cc7a48d1
JB		 2262 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2263 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2264
2265 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2266 genlmsg_attrlen(gnlh, 0), NULL);
2267
2268 switch (gnlh->cmd) {
a11241fa
JB		 2269 case NL80211_CMD_FRAME:
2270 case NL80211_CMD_FRAME_TX_STATUS:
2271 mlme_event(bss->drv, gnlh->cmd, tb[NL80211_ATTR_FRAME],
2272 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT],
2273 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK],
da873dbb
JB		 2274 tb[NL80211_ATTR_COOKIE],
2275 tb[NL80211_ATTR_RX_SIGNAL_DBM]);
a11241fa 2276 break;
02bb32c3 2277 case NL80211_CMD_UNEXPECTED_FRAME:
3088e4e5
JB		 2278 nl80211_spurious_frame(bss, tb, 0);
2279 break;
2280 case NL80211_CMD_UNEXPECTED_4ADDR_FRAME:
2281 nl80211_spurious_frame(bss, tb, 1);
02bb32c3 2282 break;
cc7a48d1
JB		 2283 default:
2284 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event "
2285 "(cmd=%d)", gnlh->cmd);
2286 break;
2287 }
2288
2289 return NL_SKIP;
2290}
2291
2292
97865538 2293static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx,
5582a5d1 2294 void *handle)
97865538 2295{
a4ae123c 2296 struct nl_cb *cb = eloop_ctx;
97865538
JM		 2297
2298 wpa_printf(MSG_DEBUG, "nl80211: Event message available");
2299
a4ae123c 2300 nl_recvmsgs(handle, cb);
97865538
JM		 2301}
2302
2303
6d158490
LR		 2304/**
2305 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain
2306 * @priv: driver_nl80211 private data
2307 * @alpha2_arg: country to which to switch to
2308 * Returns: 0 on success, -1 on failure
2309 *
2310 * This asks nl80211 to set the regulatory domain for given
2311 * country ISO / IEC alpha2.
2312 */
2313static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg)
2314{
a2e40bb6
FF		 2315 struct i802_bss *bss = priv;
2316 struct wpa_driver_nl80211_data *drv = bss->drv;
6d158490
LR		 2317 char alpha2[3];
2318 struct nl_msg *msg;
2319
2320 msg = nlmsg_alloc();
2321 if (!msg)
e785c2ba 2322 return -ENOMEM;
6d158490
LR		 2323
2324 alpha2[0] = alpha2_arg[0];
2325 alpha2[1] = alpha2_arg[1];
2326 alpha2[2] = '\0';
2327
9fb04070 2328 nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG);
6d158490
LR		 2329
2330 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2);
2331 if (send_and_recv_msgs(drv, msg, NULL, NULL))
2332 return -EINVAL;
2333 return 0;
2334nla_put_failure:
5883168a 2335 nlmsg_free(msg);
6d158490
LR		 2336 return -EINVAL;
2337}
2338
2339
80bc75f1 2340struct wiphy_info_data {
e8b5e24e
JB		 2341 struct wpa_driver_capa *capa;
2342
2343 unsigned int error:1;
61cbe2ff 2344 unsigned int device_ap_sme:1;
39718852 2345 unsigned int poll_command_supported:1;
32ab4855 2346 unsigned int data_tx_status:1;
536062f2 2347 unsigned int monitor_supported:1;
80bc75f1
JM		 2348};
2349
2350
562c9d97
AN		 2351static unsigned int probe_resp_offload_support(int supp_protocols)
2352{
2353 unsigned int prot = 0;
2354
2355 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS)
2356 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS;
2357 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2)
2358 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2;
2359 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P)
2360 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P;
2361 if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U)
2362 prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING;
2363
2364 return prot;
2365}
2366
2367
80bc75f1
JM		 2368static int wiphy_info_handler(struct nl_msg *msg, void *arg)
2369{
2370 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2371 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2372 struct wiphy_info_data *info = arg;
9f51b113 2373 int p2p_go_supported = 0, p2p_client_supported = 0;
e8b5e24e
JB		 2374 int p2p_concurrent = 0;
2375 int auth_supported = 0, connect_supported = 0;
2376 struct wpa_driver_capa *capa = info->capa;
7626850d
JB		 2377 static struct nla_policy
2378 iface_combination_policy[NUM_NL80211_IFACE_COMB] = {
2379 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED },
2380 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 },
2381 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG },
2382 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 },
2383 },
2384 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = {
2385 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED },
2386 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 },
2387 };
80bc75f1
JM		 2388
2389 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2390 genlmsg_attrlen(gnlh, 0), NULL);
2391
2392 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS])
e8b5e24e 2393 capa->max_scan_ssids =
80bc75f1
JM		 2394 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]);
2395
d21c63b9 2396 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS])
e8b5e24e 2397 capa->max_sched_scan_ssids =
d21c63b9
LC		 2398 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]);
2399
bd525934 2400 if (tb[NL80211_ATTR_MAX_MATCH_SETS])
e8b5e24e 2401 capa->max_match_sets =
bd525934
LC		 2402 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]);
2403
1581b38b
JM		 2404 if (tb[NL80211_ATTR_SUPPORTED_IFTYPES]) {
2405 struct nlattr *nl_mode;
2406 int i;
2407 nla_for_each_nested(nl_mode,
2408 tb[NL80211_ATTR_SUPPORTED_IFTYPES], i) {
58708b3b 2409 switch (nla_type(nl_mode)) {
9f51b113 2410 case NL80211_IFTYPE_AP:
e8b5e24e 2411 capa->flags |= WPA_DRIVER_FLAGS_AP;
1581b38b 2412 break;
9f51b113
JB		 2413 case NL80211_IFTYPE_P2P_GO:
2414 p2p_go_supported = 1;
2415 break;
2416 case NL80211_IFTYPE_P2P_CLIENT:
2417 p2p_client_supported = 1;
2418 break;
536062f2
JM		 2419 case NL80211_IFTYPE_MONITOR:
2420 info->monitor_supported = 1;
2421 break;
1581b38b
JM		 2422 }
2423 }
2424 }
2425
7626850d
JB		 2426 if (tb[NL80211_ATTR_INTERFACE_COMBINATIONS]) {
2427 struct nlattr *nl_combi;
2428 int rem_combi;
2429
2430 nla_for_each_nested(nl_combi,
2431 tb[NL80211_ATTR_INTERFACE_COMBINATIONS],
2432 rem_combi) {
2433 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB];
2434 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT];
2435 struct nlattr *nl_limit, *nl_mode;
2436 int err, rem_limit, rem_mode;
2437 int combination_has_p2p = 0, combination_has_mgd = 0;
2438
2439 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB,
2440 nl_combi,
2441 iface_combination_policy);
2442 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] ||
2443 !tb_comb[NL80211_IFACE_COMB_MAXNUM] ||
2444 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS])
2445 goto broken_combination;
2446
2447 nla_for_each_nested(nl_limit,
2448 tb_comb[NL80211_IFACE_COMB_LIMITS],
2449 rem_limit) {
2450 err = nla_parse_nested(tb_limit,
2451 MAX_NL80211_IFACE_LIMIT,
2452 nl_limit,
2453 iface_limit_policy);
2454 if (err ||
2455 !tb_limit[NL80211_IFACE_LIMIT_TYPES])
2456 goto broken_combination;
2457
2458 nla_for_each_nested(
2459 nl_mode,
2460 tb_limit[NL80211_IFACE_LIMIT_TYPES],
2461 rem_mode) {
2462 int ift = nla_type(nl_mode);
2463 if (ift == NL80211_IFTYPE_P2P_GO ||
2464 ift == NL80211_IFTYPE_P2P_CLIENT)
2465 combination_has_p2p = 1;
2466 if (ift == NL80211_IFTYPE_STATION)
2467 combination_has_mgd = 1;
2468 }
2469 if (combination_has_p2p && combination_has_mgd)
2470 break;
2471 }
2472
2473 if (combination_has_p2p && combination_has_mgd) {
e8b5e24e 2474 p2p_concurrent = 1;
7626850d
JB		 2475 break;
2476 }
2477
2478broken_combination:
2479 ;
2480 }
2481 }
2482
93d11400
ZY		 2483 if (tb[NL80211_ATTR_SUPPORTED_COMMANDS]) {
2484 struct nlattr *nl_cmd;
2485 int i;
2486
2487 nla_for_each_nested(nl_cmd,
2488 tb[NL80211_ATTR_SUPPORTED_COMMANDS], i) {
e8b5e24e
JB		 2489 switch (nla_get_u32(nl_cmd)) {
2490 case NL80211_CMD_AUTHENTICATE:
2491 auth_supported = 1;
2492 break;
2493 case NL80211_CMD_CONNECT:
2494 connect_supported = 1;
2495 break;
2496 case NL80211_CMD_START_SCHED_SCAN:
2497 capa->sched_scan_supported = 1;
2498 break;
39718852
JB		 2499 case NL80211_CMD_PROBE_CLIENT:
2500 info->poll_command_supported = 1;
2501 break;
e8b5e24e 2502 }
93d11400
ZY		 2503 }
2504 }
2505
e8b5e24e
JB		 2506 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) {
2507 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based "
2508 "off-channel TX");
2509 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX;
2510 }
2511
2512 if (tb[NL80211_ATTR_ROAM_SUPPORT]) {
2513 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming");
2514 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION;
2515 }
5dfca53f 2516
e8b5e24e
JB		 2517 /* default to 5000 since early versions of mac80211 don't set it */
2518 capa->max_remain_on_chan = 5000;
004ba773 2519
70619a5d
EP		 2520 if (tb[NL80211_ATTR_SUPPORT_AP_UAPSD])
2521 capa->flags |= WPA_DRIVER_FLAGS_AP_UAPSD;
2522
89e07afb 2523 if (tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION])
e8b5e24e 2524 capa->max_remain_on_chan =
89e07afb
JB		 2525 nla_get_u32(tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]);
2526
e8b5e24e
JB		 2527 if (auth_supported)
2528 capa->flags |= WPA_DRIVER_FLAGS_SME;
2529 else if (!connect_supported) {
2530 wpa_printf(MSG_INFO, "nl80211: Driver does not support "
2531 "authentication/association or connect commands");
2532 info->error = 1;
2533 }
2534
2535 if (p2p_go_supported && p2p_client_supported)
2536 capa->flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE;
2537 if (p2p_concurrent) {
2538 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
2539 "interface (driver advertised support)");
2540 capa->flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
2541 capa->flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
2542 }
2543
03ea1786
AN		 2544 if (tb[NL80211_ATTR_TDLS_SUPPORT]) {
2545 wpa_printf(MSG_DEBUG, "nl80211: TDLS supported");
2546 capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT;
2547
2548 if (tb[NL80211_ATTR_TDLS_EXTERNAL_SETUP]) {
2549 wpa_printf(MSG_DEBUG, "nl80211: TDLS external setup");
2550 capa->flags |=
2551 WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP;
2552 }
2553 }
2554
61cbe2ff
JB		 2555 if (tb[NL80211_ATTR_DEVICE_AP_SME])
2556 info->device_ap_sme = 1;
2557
32ab4855
JB		 2558 if (tb[NL80211_ATTR_FEATURE_FLAGS]) {
2559 u32 flags = nla_get_u32(tb[NL80211_ATTR_FEATURE_FLAGS]);
2560
2561 if (flags & NL80211_FEATURE_SK_TX_STATUS)
2562 info->data_tx_status = 1;
a0133ee1
VT		 2563
2564 if (flags & NL80211_FEATURE_INACTIVITY_TIMER)
2565 capa->flags |= WPA_DRIVER_FLAGS_INACTIVITY_TIMER;
32ab4855
JB		 2566 }
2567
562c9d97
AN		 2568 if (tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]) {
2569 int protocols =
2570 nla_get_u32(tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]);
2571 wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response "
2572 "offload in AP mode");
2573 capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD;
2574 capa->probe_resp_offloads =
2575 probe_resp_offload_support(protocols);
2576 }
2577
80bc75f1
JM		 2578 return NL_SKIP;
2579}
2580
2581
2582static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv,
2583 struct wiphy_info_data *info)
2584{
2585 struct nl_msg *msg;
2586
2587 os_memset(info, 0, sizeof(*info));
e8b5e24e 2588 info->capa = &drv->capa;
89e07afb 2589
80bc75f1
JM		 2590 msg = nlmsg_alloc();
2591 if (!msg)
2592 return -1;
2593
9fb04070 2594 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY);
80bc75f1 2595
a2e40bb6 2596 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->first_bss.ifindex);
80bc75f1
JM		 2597
2598 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info) == 0)
2599 return 0;
2600 msg = NULL;
2601nla_put_failure:
2602 nlmsg_free(msg);
2603 return -1;
2604}
2605
2606
93d11400 2607static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
80bc75f1
JM		 2608{
2609 struct wiphy_info_data info;
2610 if (wpa_driver_nl80211_get_info(drv, &info))
93d11400 2611 return -1;
e8b5e24e
JB		 2612
2613 if (info.error)
2614 return -1;
2615
80bc75f1 2616 drv->has_capability = 1;
1b2a72e8
JM		 2617 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */
2618 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
2619 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
2620 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
2621 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
2622 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 |
2623 WPA_DRIVER_CAPA_ENC_WEP104 |
2624 WPA_DRIVER_CAPA_ENC_TKIP |
2625 WPA_DRIVER_CAPA_ENC_CCMP;
291b6068
JM		 2626 drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
2627 WPA_DRIVER_AUTH_SHARED |
2628 WPA_DRIVER_AUTH_LEAP;
1b2a72e8 2629
871f4dd0 2630 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES;
0194fedb 2631 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE;
2fee890a 2632 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
e1bd4e19
AT		 2633
2634 if (!info.device_ap_sme)
2635 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS;
0194fedb 2636
61cbe2ff 2637 drv->device_ap_sme = info.device_ap_sme;
39718852 2638 drv->poll_command_supported = info.poll_command_supported;
32ab4855 2639 drv->data_tx_status = info.data_tx_status;
61cbe2ff 2640
a11241fa
JB		 2641 /*
2642 * If poll command is supported mac80211 is new enough to
2643 * have everything we need to not need monitor interfaces.
2644 */
2645 drv->use_monitor = !info.poll_command_supported;
2646
536062f2
JM		 2647 if (drv->device_ap_sme && drv->use_monitor) {
2648 /*
2649 * Non-mac80211 drivers may not support monitor interface.
2650 * Make sure we do not get stuck with incorrect capability here
2651 * by explicitly testing this.
2652 */
2653 if (!info.monitor_supported) {
2654 wpa_printf(MSG_DEBUG, "nl80211: Disable use_monitor "
2655 "with device_ap_sme since no monitor mode "
2656 "support detected");
2657 drv->use_monitor = 0;
2658 }
2659 }
2660
a11241fa
JB		 2661 /*
2662 * If we aren't going to use monitor interfaces, but the
2663 * driver doesn't support data TX status, we won't get TX
2664 * status for EAPOL frames.
2665 */
2666 if (!drv->use_monitor && !info.data_tx_status)
2667 drv->capa.flags &= ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
2668
93d11400 2669 return 0;
80bc75f1
JM		 2670}
2671
2672
b088cf82
JM		 2673#ifdef ANDROID
2674static int android_genl_ctrl_resolve(struct nl_handle *handle,
2675 const char *name)
2676{
2677 /*
2678 * Android ICS has very minimal genl_ctrl_resolve() implementation, so
2679 * need to work around that.
2680 */
2681 struct nl_cache *cache = NULL;
2682 struct genl_family *nl80211 = NULL;
2683 int id = -1;
2684
2685 if (genl_ctrl_alloc_cache(handle, &cache) < 0) {
2686 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
2687 "netlink cache");
2688 goto fail;
2689 }
2690
2691 nl80211 = genl_ctrl_search_by_name(cache, name);
2692 if (nl80211 == NULL)
2693 goto fail;
2694
2695 id = genl_family_get_id(nl80211);
2696
2697fail:
2698 if (nl80211)
2699 genl_family_put(nl80211);
2700 if (cache)
2701 nl_cache_free(cache);
2702
2703 return id;
2704}
2705#define genl_ctrl_resolve android_genl_ctrl_resolve
2706#endif /* ANDROID */
2707
2708
2a7b66f5
BG		 2709static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global)
2710{
d6c9aab8
JB		 2711 int ret;
2712
2a7b66f5
BG		 2713 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
2714 if (global->nl_cb == NULL) {
2715 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
2716 "callbacks");
2717 return -1;
2718 }
2719
481234cf
JM		 2720 global->nl = nl_create_handle(global->nl_cb, "nl");
2721 if (global->nl == NULL)
d6c9aab8 2722 goto err;
276e2d67 2723
481234cf 2724 global->nl80211_id = genl_ctrl_resolve(global->nl, "nl80211");
335d42b1 2725 if (global->nl80211_id < 0) {
276e2d67
BG		 2726 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not "
2727 "found");
d6c9aab8 2728 goto err;
276e2d67
BG		 2729 }
2730
481234cf
JM		 2731 global->nl_event = nl_create_handle(global->nl_cb, "event");
2732 if (global->nl_event == NULL)
d6c9aab8 2733 goto err;
9fff9fdc 2734
d6c9aab8 2735 ret = nl_get_multicast_id(global, "nl80211", "scan");
97865538 2736 if (ret >= 0)
481234cf 2737 ret = nl_socket_add_membership(global->nl_event, ret);
97865538
JM		 2738 if (ret < 0) {
2739 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
2740 "membership for scan events: %d (%s)",
2741 ret, strerror(-ret));
d6c9aab8 2742 goto err;
97865538 2743 }
c2a04078 2744
d6c9aab8 2745 ret = nl_get_multicast_id(global, "nl80211", "mlme");
c2a04078 2746 if (ret >= 0)
481234cf 2747 ret = nl_socket_add_membership(global->nl_event, ret);
c2a04078
JM		 2748 if (ret < 0) {
2749 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
2750 "membership for mlme events: %d (%s)",
2751 ret, strerror(-ret));
d6c9aab8 2752 goto err;
c2a04078 2753 }
c2a04078 2754
d6c9aab8 2755 ret = nl_get_multicast_id(global, "nl80211", "regulatory");
33c5deb8 2756 if (ret >= 0)
481234cf 2757 ret = nl_socket_add_membership(global->nl_event, ret);
33c5deb8
JM		 2758 if (ret < 0) {
2759 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast "
2760 "membership for regulatory events: %d (%s)",
2761 ret, strerror(-ret));
2762 /* Continue without regulatory events */
2763 }
2764
d6c9aab8
JB		 2765 nl_cb_set(global->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
2766 no_seq_check, NULL);
2767 nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
2768 process_global_event, global);
2769
481234cf 2770 eloop_register_read_sock(nl_socket_get_fd(global->nl_event),
d6c9aab8 2771 wpa_driver_nl80211_event_receive,
481234cf 2772 global->nl_cb, global->nl_event);
d6c9aab8
JB		 2773
2774 return 0;
2775
2776err:
2777 nl_destroy_handles(&global->nl_event);
2778 nl_destroy_handles(&global->nl);
2779 nl_cb_put(global->nl_cb);
671a5039 2780 global->nl_cb = NULL;
d6c9aab8
JB		 2781 return -1;
2782}
2783
2784
2785static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv)
2786{
1afc986d
JB		 2787 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
2788 if (!drv->nl_cb) {
2789 wpa_printf(MSG_ERROR, "nl80211: Failed to alloc cb struct");
d6c9aab8 2790 return -1;
1afc986d
JB		 2791 }
2792
2793 nl_cb_set(drv->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
2794 no_seq_check, NULL);
f06aedd9
JB		 2795 nl_cb_set(drv->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
2796 process_drv_event, drv);
1afc986d 2797
9fff9fdc 2798 return 0;
9fff9fdc
JM		 2799}
2800
2801
8401a6b0
JM		 2802static void wpa_driver_nl80211_rfkill_blocked(void *ctx)
2803{
8401a6b0 2804 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked");
a63063b4
JM		 2805 /*
2806 * This may be for any interface; use ifdown event to disable
2807 * interface.
2808 */
8401a6b0
JM		 2809}
2810
2811
2812static void wpa_driver_nl80211_rfkill_unblocked(void *ctx)
2813{
2814 struct wpa_driver_nl80211_data *drv = ctx;
2815 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked");
c81eff1a
BG		 2816 if (linux_set_iface_flags(drv->global->ioctl_sock,
2817 drv->first_bss.ifname, 1)) {
8401a6b0
JM		 2818 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP "
2819 "after rfkill unblock");
2820 return;
2821 }
a63063b4 2822 /* rtnetlink ifup handler will report interface as enabled */
8401a6b0
JM		 2823}
2824
2825
6859f1cb
BG		 2826static void nl80211_get_phy_name(struct wpa_driver_nl80211_data *drv)
2827{
2828 /* Find phy (radio) to which this interface belongs */
2829 char buf[90], *pos;
2830 int f, rv;
2831
2832 drv->phyname[0] = '\0';
2833 snprintf(buf, sizeof(buf) - 1, "/sys/class/net/%s/phy80211/name",
2834 drv->first_bss.ifname);
2835 f = open(buf, O_RDONLY);
2836 if (f < 0) {
2837 wpa_printf(MSG_DEBUG, "Could not open file %s: %s",
2838 buf, strerror(errno));
2839 return;
2840 }
2841
2842 rv = read(f, drv->phyname, sizeof(drv->phyname) - 1);
2843 close(f);
2844 if (rv < 0) {
2845 wpa_printf(MSG_DEBUG, "Could not read file %s: %s",
2846 buf, strerror(errno));
2847 return;
2848 }
2849
2850 drv->phyname[rv] = '\0';
2851 pos = os_strchr(drv->phyname, '\n');
2852 if (pos)
2853 *pos = '\0';
2854 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s",
2855 drv->first_bss.ifname, drv->phyname);
2856}
2857
2858
32ab4855
JB		 2859static void wpa_driver_nl80211_handle_eapol_tx_status(int sock,
2860 void *eloop_ctx,
2861 void *handle)
2862{
2863 struct wpa_driver_nl80211_data *drv = eloop_ctx;
2864 u8 data[2048];
2865 struct msghdr msg;
2866 struct iovec entry;
cad0f50e 2867 u8 control[512];
32ab4855
JB		 2868 struct cmsghdr *cmsg;
2869 int res, found_ee = 0, found_wifi = 0, acked = 0;
2870 union wpa_event_data event;
2871
2872 memset(&msg, 0, sizeof(msg));
2873 msg.msg_iov = &entry;
2874 msg.msg_iovlen = 1;
2875 entry.iov_base = data;
2876 entry.iov_len = sizeof(data);
2877 msg.msg_control = &control;
2878 msg.msg_controllen = sizeof(control);
2879
2880 res = recvmsg(sock, &msg, MSG_ERRQUEUE);
2881 /* if error or not fitting 802.3 header, return */
2882 if (res < 14)
2883 return;
2884
2885 for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg))
2886 {
2887 if (cmsg->cmsg_level == SOL_SOCKET &&
2888 cmsg->cmsg_type == SCM_WIFI_STATUS) {
2889 int *ack;
2890
2891 found_wifi = 1;
2892 ack = (void *)CMSG_DATA(cmsg);
2893 acked = *ack;
2894 }
2895
2896 if (cmsg->cmsg_level == SOL_PACKET &&
2897 cmsg->cmsg_type == PACKET_TX_TIMESTAMP) {
2898 struct sock_extended_err *err =
2899 (struct sock_extended_err *)CMSG_DATA(cmsg);
2900
2901 if (err->ee_origin == SO_EE_ORIGIN_TXSTATUS)
2902 found_ee = 1;
2903 }
2904 }
2905
2906 if (!found_ee || !found_wifi)
2907 return;
2908
2909 memset(&event, 0, sizeof(event));
2910 event.eapol_tx_status.dst = data;
2911 event.eapol_tx_status.data = data + 14;
2912 event.eapol_tx_status.data_len = res - 14;
2913 event.eapol_tx_status.ack = acked;
2914 wpa_supplicant_event(drv->ctx, EVENT_EAPOL_TX_STATUS, &event);
2915}
2916
2917
cc7a48d1
JB		 2918static int nl80211_init_bss(struct i802_bss *bss)
2919{
2920 bss->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
2921 if (!bss->nl_cb)
2922 return -1;
2923
2924 nl_cb_set(bss->nl_cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM,
2925 no_seq_check, NULL);
2926 nl_cb_set(bss->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,
2927 process_bss_event, bss);
2928
2929 return 0;
2930}
2931
2932
2933static void nl80211_destroy_bss(struct i802_bss *bss)
2934{
2935 nl_cb_put(bss->nl_cb);
2936 bss->nl_cb = NULL;
2937}
2938
2939
9fff9fdc
JM		 2940/**
2941 * wpa_driver_nl80211_init - Initialize nl80211 driver interface
2942 * @ctx: context to be used when calling wpa_supplicant functions,
2943 * e.g., wpa_supplicant_event()
2944 * @ifname: interface name, e.g., wlan0
f2ed8023 2945 * @global_priv: private driver global data from global_init()
9fff9fdc
JM		 2946 * Returns: Pointer to private data, %NULL on failure
2947 */
f2ed8023
JM		 2948static void * wpa_driver_nl80211_init(void *ctx, const char *ifname,
2949 void *global_priv)
9fff9fdc 2950{
9fff9fdc 2951 struct wpa_driver_nl80211_data *drv;
8401a6b0 2952 struct rfkill_config *rcfg;
a2e40bb6 2953 struct i802_bss *bss;
9fff9fdc 2954
a5c696ad
JM		 2955 if (global_priv == NULL)
2956 return NULL;
9fff9fdc
JM		 2957 drv = os_zalloc(sizeof(*drv));
2958 if (drv == NULL)
2959 return NULL;
f2ed8023 2960 drv->global = global_priv;
9fff9fdc 2961 drv->ctx = ctx;
a2e40bb6
FF		 2962 bss = &drv->first_bss;
2963 bss->drv = drv;
2964 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname));
9fff9fdc
JM		 2965 drv->monitor_ifidx = -1;
2966 drv->monitor_sock = -1;
d12dab4c 2967 drv->eapol_tx_sock = -1;
b1f625e0 2968 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
9fff9fdc 2969
ba2d0d7d 2970 if (wpa_driver_nl80211_init_nl(drv)) {
bbaf0837
JM		 2971 os_free(drv);
2972 return NULL;
2973 }
9fff9fdc 2974
cc7a48d1
JB		 2975 if (nl80211_init_bss(bss))
2976 goto failed;
2977
6859f1cb
BG		 2978 nl80211_get_phy_name(drv);
2979
8401a6b0
JM		 2980 rcfg = os_zalloc(sizeof(*rcfg));
2981 if (rcfg == NULL)
2982 goto failed;
2983 rcfg->ctx = drv;
2984 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname));
2985 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked;
2986 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked;
2987 drv->rfkill = rfkill_init(rcfg);
52169389 2988 if (drv->rfkill == NULL) {
8401a6b0 2989 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available");
52169389
JM		 2990 os_free(rcfg);
2991 }
8401a6b0 2992
08063178 2993 if (wpa_driver_nl80211_finish_drv_init(drv))
bbaf0837 2994 goto failed;
7524cfb1 2995
d12dab4c 2996 drv->eapol_tx_sock = socket(PF_PACKET, SOCK_DGRAM, 0);
32ab4855
JB		 2997 if (drv->eapol_tx_sock < 0)
2998 goto failed;
2999
3000 if (drv->data_tx_status) {
3001 int enabled = 1;
3002
3003 if (setsockopt(drv->eapol_tx_sock, SOL_SOCKET, SO_WIFI_STATUS,
3004 &enabled, sizeof(enabled)) < 0) {
3005 wpa_printf(MSG_DEBUG,
3006 "nl80211: wifi status sockopt failed\n");
3007 drv->data_tx_status = 0;
a11241fa
JB		 3008 if (!drv->use_monitor)
3009 drv->capa.flags &=
3010 ~WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
32ab4855
JB		 3011 } else {
3012 eloop_register_read_sock(drv->eapol_tx_sock,
3013 wpa_driver_nl80211_handle_eapol_tx_status,
3014 drv, NULL);
3015 }
3016 }
f10bfc9a 3017
dac12351 3018 if (drv->global) {
c4bb8817 3019 dl_list_add(&drv->global->interfaces, &drv->list);
dac12351
BG		 3020 drv->in_interface_list = 1;
3021 }
c4bb8817 3022
a2e40bb6 3023 return bss;
7524cfb1 3024
bbaf0837 3025failed:
dac12351 3026 wpa_driver_nl80211_deinit(bss);
7524cfb1
JM		 3027 return NULL;
3028}
3029
3030
a11241fa 3031static int nl80211_register_frame(struct i802_bss *bss,
5582a5d1 3032 struct nl_handle *nl_handle,
bd94971e 3033 u16 type, const u8 *match, size_t match_len)
58f6fbe0 3034{
a11241fa 3035 struct wpa_driver_nl80211_data *drv = bss->drv;
58f6fbe0
JM		 3036 struct nl_msg *msg;
3037 int ret = -1;
3038
3039 msg = nlmsg_alloc();
3040 if (!msg)
3041 return -1;
3042
36488c05
JM		 3043 wpa_printf(MSG_DEBUG, "nl80211: Register frame type=0x%x nl_handle=%p",
3044 type, nl_handle);
3045 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match",
3046 match, match_len);
3047
9fb04070 3048 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION);
58f6fbe0 3049
a11241fa 3050 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
bd94971e 3051 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type);
58f6fbe0
JM		 3052 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match);
3053
d6c9aab8 3054 ret = send_and_recv(drv->global, nl_handle, msg, NULL, NULL);
58f6fbe0
JM		 3055 msg = NULL;
3056 if (ret) {
5582a5d1
JB		 3057 wpa_printf(MSG_DEBUG, "nl80211: Register frame command "
3058 "failed (type=%u): ret=%d (%s)",
3059 type, ret, strerror(-ret));
3060 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match",
58f6fbe0
JM		 3061 match, match_len);
3062 goto nla_put_failure;
3063 }
3064 ret = 0;
3065nla_put_failure:
3066 nlmsg_free(msg);
3067 return ret;
3068}
3069
3070
a11241fa
JB		 3071static int nl80211_alloc_mgmt_handle(struct i802_bss *bss)
3072{
3073 struct wpa_driver_nl80211_data *drv = bss->drv;
3074
481234cf 3075 if (bss->nl_mgmt) {
a11241fa 3076 wpa_printf(MSG_DEBUG, "nl80211: Mgmt reporting "
36488c05 3077 "already on! (nl_mgmt=%p)", bss->nl_mgmt);
a11241fa
JB		 3078 return -1;
3079 }
3080
481234cf
JM		 3081 bss->nl_mgmt = nl_create_handle(drv->nl_cb, "mgmt");
3082 if (bss->nl_mgmt == NULL)
a11241fa
JB		 3083 return -1;
3084
481234cf 3085 eloop_register_read_sock(nl_socket_get_fd(bss->nl_mgmt),
a11241fa 3086 wpa_driver_nl80211_event_receive, bss->nl_cb,
481234cf 3087 bss->nl_mgmt);
a11241fa
JB		 3088
3089 return 0;
3090}
3091
3092
3093static int nl80211_register_action_frame(struct i802_bss *bss,
bd94971e
JB		 3094 const u8 *match, size_t match_len)
3095{
3096 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4);
481234cf 3097 return nl80211_register_frame(bss, bss->nl_mgmt,
5582a5d1 3098 type, match, match_len);
bd94971e
JB		 3099}
3100
3101
a11241fa 3102static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss)
58f6fbe0 3103{
a11241fa
JB		 3104 struct wpa_driver_nl80211_data *drv = bss->drv;
3105
3106 if (nl80211_alloc_mgmt_handle(bss))
3107 return -1;
36488c05
JM		 3108 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP "
3109 "handle %p", bss->nl_mgmt);
a11241fa 3110
4fe9fa0d 3111#if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING)
046b26a2 3112 /* GAS Initial Request */
a11241fa 3113 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0a", 2) < 0)
046b26a2
JM		 3114 return -1;
3115 /* GAS Initial Response */
a11241fa 3116 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0b", 2) < 0)
046b26a2 3117 return -1;
18708aad 3118 /* GAS Comeback Request */
a11241fa 3119 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0c", 2) < 0)
18708aad
JM		 3120 return -1;
3121 /* GAS Comeback Response */
a11241fa 3122 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0d", 2) < 0)
18708aad 3123 return -1;
4fe9fa0d
JM		 3124#endif /* CONFIG_P2P || CONFIG_INTERWORKING */
3125#ifdef CONFIG_P2P
046b26a2 3126 /* P2P Public Action */
a11241fa 3127 if (nl80211_register_action_frame(bss,
046b26a2
JM		 3128 (u8 *) "\x04\x09\x50\x6f\x9a\x09",
3129 6) < 0)
3130 return -1;
3131 /* P2P Action */
a11241fa 3132 if (nl80211_register_action_frame(bss,
046b26a2
JM		 3133 (u8 *) "\x7f\x50\x6f\x9a\x09",
3134 5) < 0)
3135 return -1;
3136#endif /* CONFIG_P2P */
7d878ca7
JM		 3137#ifdef CONFIG_IEEE80211W
3138 /* SA Query Response */
a11241fa 3139 if (nl80211_register_action_frame(bss, (u8 *) "\x08\x01", 2) < 0)
7d878ca7
JM		 3140 return -1;
3141#endif /* CONFIG_IEEE80211W */
35287637
AN		 3142#ifdef CONFIG_TDLS
3143 if ((drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT)) {
3144 /* TDLS Discovery Response */
aa543c0c 3145 if (nl80211_register_action_frame(bss, (u8 *) "\x04\x0e", 2) <
35287637
AN		 3146 0)
3147 return -1;
3148 }
3149#endif /* CONFIG_TDLS */
046b26a2 3150
7b90c16a 3151 /* FT Action frames */
a11241fa 3152 if (nl80211_register_action_frame(bss, (u8 *) "\x06", 1) < 0)
7b90c16a
JM		 3153 return -1;
3154 else
3155 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT |
3156 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK;
3157
71269b37 3158 /* WNM - BSS Transition Management Request */
a11241fa
JB		 3159 if (nl80211_register_action_frame(bss, (u8 *) "\x0a\x07", 2) < 0)
3160 return -1;
3161
3162 return 0;
3163}
3164
3165
02bb32c3
JB		 3166static int nl80211_register_spurious_class3(struct i802_bss *bss)
3167{
3168 struct wpa_driver_nl80211_data *drv = bss->drv;
3169 struct nl_msg *msg;
3170 int ret = -1;
3171
3172 msg = nlmsg_alloc();
3173 if (!msg)
3174 return -1;
3175
3176 nl80211_cmd(drv, msg, 0, NL80211_CMD_UNEXPECTED_FRAME);
3177
3178 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
3179
481234cf 3180 ret = send_and_recv(drv->global, bss->nl_mgmt, msg, NULL, NULL);
02bb32c3
JB		 3181 msg = NULL;
3182 if (ret) {
3183 wpa_printf(MSG_DEBUG, "nl80211: Register spurious class3 "
3184 "failed: ret=%d (%s)",
3185 ret, strerror(-ret));
3186 goto nla_put_failure;
3187 }
3188 ret = 0;
3189nla_put_failure:
3190 nlmsg_free(msg);
3191 return ret;
3192}
3193
3194
a11241fa
JB		 3195static int nl80211_mgmt_subscribe_ap(struct i802_bss *bss)
3196{
3197 static const int stypes[] = {
3198 WLAN_FC_STYPE_AUTH,
3199 WLAN_FC_STYPE_ASSOC_REQ,
3200 WLAN_FC_STYPE_REASSOC_REQ,
3201 WLAN_FC_STYPE_DISASSOC,
3202 WLAN_FC_STYPE_DEAUTH,
3203 WLAN_FC_STYPE_ACTION,
3204 WLAN_FC_STYPE_PROBE_REQ,
3205/* Beacon doesn't work as mac80211 doesn't currently allow
3206 * it, but it wouldn't really be the right thing anyway as
3207 * it isn't per interface ... maybe just dump the scan
3208 * results periodically for OLBC?
3209 */
3210// WLAN_FC_STYPE_BEACON,
3211 };
3212 unsigned int i;
3213
3214 if (nl80211_alloc_mgmt_handle(bss))
71269b37 3215 return -1;
36488c05
JM		 3216 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP "
3217 "handle %p", bss->nl_mgmt);
71269b37 3218
a11241fa 3219 for (i = 0; i < sizeof(stypes) / sizeof(stypes[0]); i++) {
481234cf 3220 if (nl80211_register_frame(bss, bss->nl_mgmt,
a11241fa
JB		 3221 (WLAN_FC_TYPE_MGMT << 2) |
3222 (stypes[i] << 4),
3223 NULL, 0) < 0) {
3224 goto out_err;
3225 }
3226 }
3227
02bb32c3
JB		 3228 if (nl80211_register_spurious_class3(bss))
3229 goto out_err;
3230
e32ad281
JB		 3231 if (nl80211_get_wiphy_data_ap(bss) == NULL)
3232 goto out_err;
3233
58f6fbe0 3234 return 0;
a11241fa
JB		 3235
3236out_err:
481234cf 3237 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt));
a11241fa
JB		 3238 nl_destroy_handles(&bss->nl_mgmt);
3239 return -1;
3240}
3241
3242
a6cc0602
JM		 3243static int nl80211_mgmt_subscribe_ap_dev_sme(struct i802_bss *bss)
3244{
3245 if (nl80211_alloc_mgmt_handle(bss))
3246 return -1;
3247 wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with AP "
3248 "handle %p (device SME)", bss->nl_mgmt);
3249
3250 if (nl80211_register_frame(bss, bss->nl_mgmt,
3251 (WLAN_FC_TYPE_MGMT << 2) |
3252 (WLAN_FC_STYPE_ACTION << 4),
3253 NULL, 0) < 0)
3254 goto out_err;
3255
3256 return 0;
3257
3258out_err:
3259 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt));
3260 nl_destroy_handles(&bss->nl_mgmt);
3261 return -1;
3262}
3263
3264
36488c05 3265static void nl80211_mgmt_unsubscribe(struct i802_bss *bss, const char *reason)
a11241fa 3266{
481234cf 3267 if (bss->nl_mgmt == NULL)
a11241fa 3268 return;
36488c05
JM		 3269 wpa_printf(MSG_DEBUG, "nl80211: Unsubscribe mgmt frames handle %p "
3270 "(%s)", bss->nl_mgmt, reason);
481234cf 3271 eloop_unregister_read_sock(nl_socket_get_fd(bss->nl_mgmt));
a11241fa 3272 nl_destroy_handles(&bss->nl_mgmt);
e32ad281
JB		 3273
3274 nl80211_put_wiphy_data_ap(bss);
58f6fbe0
JM		 3275}
3276
3277
8401a6b0
JM		 3278static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx)
3279{
3280 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL);
3281}
3282
3283
362f781e 3284static int
7524cfb1
JM		 3285wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv)
3286{
a2e40bb6 3287 struct i802_bss *bss = &drv->first_bss;
8401a6b0 3288 int send_rfkill_event = 0;
a2e40bb6
FF		 3289
3290 drv->ifindex = if_nametoindex(bss->ifname);
3291 drv->first_bss.ifindex = drv->ifindex;
a87c9d96 3292
bbaf0837 3293#ifndef HOSTAPD
ff6a158b
JM		 3294 /*
3295 * Make sure the interface starts up in station mode unless this is a
3296 * dynamically added interface (e.g., P2P) that was already configured
3297 * with proper iftype.
3298 */
a5c696ad 3299 if (drv->ifindex != drv->global->if_add_ifindex &&
b1f625e0 3300 wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION) < 0) {
6e8183d7 3301 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver to "
a87c9d96 3302 "use managed mode");
6e8183d7 3303 return -1;
a87c9d96
JM		 3304 }
3305
c81eff1a 3306 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) {
8401a6b0
JM		 3307 if (rfkill_is_blocked(drv->rfkill)) {
3308 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable "
3309 "interface '%s' due to rfkill",
3310 bss->ifname);
a63063b4 3311 drv->if_disabled = 1;
8401a6b0
JM		 3312 send_rfkill_event = 1;
3313 } else {
3314 wpa_printf(MSG_ERROR, "nl80211: Could not set "
3315 "interface '%s' UP", bss->ifname);
3316 return -1;
3317 }
362f781e 3318 }
3f5285e8 3319
36d84860 3320 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex,
e2d02c29 3321 1, IF_OPER_DORMANT);
bbaf0837 3322#endif /* HOSTAPD */
362f781e 3323
2fee890a
JM		 3324 if (wpa_driver_nl80211_capa(drv))
3325 return -1;
3326
c81eff1a 3327 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
341eebee 3328 bss->addr))
2136f480 3329 return -1;
f2ed8023 3330
8401a6b0
JM		 3331 if (send_rfkill_event) {
3332 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill,
3333 drv, drv->ctx);
3334 }
3335
362f781e 3336 return 0;
3f5285e8
JM		 3337}
3338
3339
8a27af5c
JM		 3340static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv)
3341{
3342 struct nl_msg *msg;
3343
3344 msg = nlmsg_alloc();
3345 if (!msg)
3346 return -ENOMEM;
3347
9fb04070 3348 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON);
8a27af5c
JM		 3349 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3350
3351 return send_and_recv_msgs(drv, msg, NULL, NULL);
3352 nla_put_failure:
5883168a 3353 nlmsg_free(msg);
8a27af5c
JM		 3354 return -ENOBUFS;
3355}
8a27af5c
JM		 3356
3357
3f5285e8 3358/**
7e5ba1b9
JM		 3359 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface
3360 * @priv: Pointer to private nl80211 data from wpa_driver_nl80211_init()
3f5285e8
JM		 3361 *
3362 * Shut down driver interface and processing of driver events. Free
3363 * private data buffer if one was allocated in wpa_driver_nl80211_init().
3364 */
7e5ba1b9 3365static void wpa_driver_nl80211_deinit(void *priv)
3f5285e8 3366{
a2e40bb6
FF		 3367 struct i802_bss *bss = priv;
3368 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8 3369
873d0fcf 3370 bss->in_deinit = 1;
32ab4855
JB		 3371 if (drv->data_tx_status)
3372 eloop_unregister_read_sock(drv->eapol_tx_sock);
d12dab4c
JB		 3373 if (drv->eapol_tx_sock >= 0)
3374 close(drv->eapol_tx_sock);
f10bfc9a 3375
481234cf 3376 if (bss->nl_preq)
5582a5d1 3377 wpa_driver_nl80211_probe_req_report(bss, 0);
e17a2477 3378 if (bss->added_if_into_bridge) {
c81eff1a
BG		 3379 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname,
3380 bss->ifname) < 0)
94627f6c
JM		 3381 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
3382 "interface %s from bridge %s: %s",
e17a2477 3383 bss->ifname, bss->brname, strerror(errno));
94627f6c 3384 }
e17a2477 3385 if (bss->added_bridge) {
c81eff1a 3386 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0)
94627f6c
JM		 3387 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
3388 "bridge %s: %s",
e17a2477 3389 bss->brname, strerror(errno));
94627f6c
JM		 3390 }
3391
460456f8 3392 nl80211_remove_monitor_interface(drv);
8a27af5c 3393
b1f625e0 3394 if (is_ap_interface(drv->nlmode))
8a27af5c 3395 wpa_driver_nl80211_del_beacon(drv);
0915d02c 3396
bbaf0837
JM		 3397#ifdef HOSTAPD
3398 if (drv->last_freq_ht) {
3399 /* Clear HT flags from the driver */
3400 struct hostapd_freq_params freq;
3401 os_memset(&freq, 0, sizeof(freq));
3402 freq.freq = drv->last_freq;
3403 i802_set_freq(priv, &freq);
3404 }
3405
bbaf0837
JM		 3406 if (drv->eapol_sock >= 0) {
3407 eloop_unregister_read_sock(drv->eapol_sock);
3408 close(drv->eapol_sock);
3409 }
3410
3411 if (drv->if_indices != drv->default_if_indices)
3412 os_free(drv->if_indices);
1b648c7e 3413#endif /* HOSTAPD */
3f5285e8 3414
b3af99d2 3415 if (drv->disabled_11b_rates)
4e5cb1a3
JM		 3416 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
3417
36d84860
BG		 3418 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0,
3419 IF_OPER_UP);
8401a6b0 3420 rfkill_deinit(drv->rfkill);
3f5285e8 3421
bbaf0837
JM		 3422 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
3423
c81eff1a 3424 (void) linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0);
b1f625e0 3425 wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION);
36488c05 3426 nl80211_mgmt_unsubscribe(bss, "deinit");
3f5285e8 3427
1afc986d 3428 nl_cb_put(drv->nl_cb);
3f5285e8 3429
cc7a48d1
JB		 3430 nl80211_destroy_bss(&drv->first_bss);
3431
3812464c
JM		 3432 os_free(drv->filter_ssids);
3433
536fd62d
JM		 3434 os_free(drv->auth_ie);
3435
dac12351 3436 if (drv->in_interface_list)
f2ed8023
JM		 3437 dl_list_del(&drv->list);
3438
3f5285e8
JM		 3439 os_free(drv);
3440}
3441
3442
3443/**
3444 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion
ad1e68e6 3445 * @eloop_ctx: Driver private data
3f5285e8
JM		 3446 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init()
3447 *
3448 * This function can be used as registered timeout when starting a scan to
3449 * generate a scan completed event if the driver does not report this.
3450 */
3451static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx)
3452{
ad1e68e6 3453 struct wpa_driver_nl80211_data *drv = eloop_ctx;
b1f625e0 3454 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) {
a2e40bb6 3455 wpa_driver_nl80211_set_mode(&drv->first_bss,
b1f625e0
EP		 3456 drv->ap_scan_as_station);
3457 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
ad1e68e6 3458 }
3f5285e8
JM		 3459 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results");
3460 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL);
3461}
3462
3463
3464/**
3465 * wpa_driver_nl80211_scan - Request the driver to initiate scan
ad1e68e6 3466 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
6a1063e0 3467 * @params: Scan parameters
3f5285e8
JM		 3468 * Returns: 0 on success, -1 on failure
3469 */
6a1063e0
JM		 3470static int wpa_driver_nl80211_scan(void *priv,
3471 struct wpa_driver_scan_params *params)
3f5285e8 3472{
a2e40bb6
FF		 3473 struct i802_bss *bss = priv;
3474 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8 3475 int ret = 0, timeout;
47185fc7 3476 struct nl_msg *msg, *ssids, *freqs, *rates;
6a1063e0 3477 size_t i;
3f5285e8 3478
536fd62d
JM		 3479 drv->scan_for_auth = 0;
3480
0e75527f
JM		 3481 msg = nlmsg_alloc();
3482 ssids = nlmsg_alloc();
d3a98225 3483 freqs = nlmsg_alloc();
47185fc7
RM		 3484 rates = nlmsg_alloc();
3485 if (!msg || !ssids || !freqs || !rates) {
0e75527f
JM		 3486 nlmsg_free(msg);
3487 nlmsg_free(ssids);
d3a98225 3488 nlmsg_free(freqs);
47185fc7 3489 nlmsg_free(rates);
3f5285e8
JM		 3490 return -1;
3491 }
3492
3812464c
JM		 3493 os_free(drv->filter_ssids);
3494 drv->filter_ssids = params->filter_ssids;
3495 params->filter_ssids = NULL;
3496 drv->num_filter_ssids = params->num_filter_ssids;
3497
9fb04070 3498 nl80211_cmd(drv, msg, 0, NL80211_CMD_TRIGGER_SCAN);
0e75527f
JM		 3499
3500 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3f5285e8 3501
6a1063e0 3502 for (i = 0; i < params->num_ssids; i++) {
9fad706c
JM		 3503 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID",
3504 params->ssids[i].ssid,
3505 params->ssids[i].ssid_len);
6a1063e0
JM		 3506 NLA_PUT(ssids, i + 1, params->ssids[i].ssid_len,
3507 params->ssids[i].ssid);
3f5285e8 3508 }
6a1063e0
JM		 3509 if (params->num_ssids)
3510 nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids);
3f5285e8 3511
d173df52 3512 if (params->extra_ies) {
3b1c7bfd
JM		 3513 wpa_hexdump(MSG_MSGDUMP, "nl80211: Scan extra IEs",
3514 params->extra_ies, params->extra_ies_len);
d173df52
JM		 3515 NLA_PUT(msg, NL80211_ATTR_IE, params->extra_ies_len,
3516 params->extra_ies);
3517 }
3518
d3a98225 3519 if (params->freqs) {
9fad706c
JM		 3520 for (i = 0; params->freqs[i]; i++) {
3521 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u "
3522 "MHz", params->freqs[i]);
d3a98225 3523 NLA_PUT_U32(freqs, i + 1, params->freqs[i]);
9fad706c 3524 }
d3a98225
JM		 3525 nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES, freqs);
3526 }
3527
47185fc7 3528 if (params->p2p_probe) {
8a6a1e1b
JM		 3529 wpa_printf(MSG_DEBUG, "nl80211: P2P probe - mask SuppRates");
3530
47185fc7
RM		 3531 /*
3532 * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates
3533 * by masking out everything else apart from the OFDM rates 6,
3534 * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz
3535 * rates are left enabled.
3536 */
3537 NLA_PUT(rates, NL80211_BAND_2GHZ, 8,
3538 "\x0c\x12\x18\x24\x30\x48\x60\x6c");
3539 nla_put_nested(msg, NL80211_ATTR_SCAN_SUPP_RATES, rates);
970fa12e
RM		 3540
3541 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE);
47185fc7
RM		 3542 }
3543
0e75527f
JM		 3544 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3545 msg = NULL;
3546 if (ret) {
3547 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d "
3548 "(%s)", ret, strerror(-ret));
ad1e68e6 3549#ifdef HOSTAPD
b1f625e0 3550 if (is_ap_interface(drv->nlmode)) {
ad1e68e6
JM		 3551 /*
3552 * mac80211 does not allow scan requests in AP mode, so
3553 * try to do this in station mode.
3554 */
b1f625e0
EP		 3555 if (wpa_driver_nl80211_set_mode(
3556 bss, NL80211_IFTYPE_STATION))
ad1e68e6
JM		 3557 goto nla_put_failure;
3558
3559 if (wpa_driver_nl80211_scan(drv, params)) {
b1f625e0 3560 wpa_driver_nl80211_set_mode(bss, drv->nlmode);
ad1e68e6
JM		 3561 goto nla_put_failure;
3562 }
3563
3564 /* Restore AP mode when processing scan results */
b1f625e0 3565 drv->ap_scan_as_station = drv->nlmode;
ad1e68e6
JM		 3566 ret = 0;
3567 } else
3568 goto nla_put_failure;
3569#else /* HOSTAPD */
0e75527f 3570 goto nla_put_failure;
ad1e68e6 3571#endif /* HOSTAPD */
3f5285e8
JM		 3572 }
3573
3574 /* Not all drivers generate "scan completed" wireless event, so try to
3575 * read results after a timeout. */
0e75527f 3576 timeout = 10;
3f5285e8
JM		 3577 if (drv->scan_complete_events) {
3578 /*
d173df52
JM		 3579 * The driver seems to deliver events to notify when scan is
3580 * complete, so use longer timeout to avoid race conditions
3581 * with scanning and following association request.
3f5285e8
JM		 3582 */
3583 timeout = 30;
3584 }
3585 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d "
3586 "seconds", ret, timeout);
3587 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
0e75527f
JM		 3588 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout,
3589 drv, drv->ctx);
3f5285e8 3590
0e75527f
JM		 3591nla_put_failure:
3592 nlmsg_free(ssids);
3593 nlmsg_free(msg);
d3a98225 3594 nlmsg_free(freqs);
47185fc7 3595 nlmsg_free(rates);
3f5285e8
JM		 3596 return ret;
3597}
3598
3599
d21c63b9
LC		 3600/**
3601 * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan
3602 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
3603 * @params: Scan parameters
3604 * @interval: Interval between scan cycles in milliseconds
3605 * Returns: 0 on success, -1 on failure or if not supported
3606 */
3607static int wpa_driver_nl80211_sched_scan(void *priv,
3608 struct wpa_driver_scan_params *params,
3609 u32 interval)
3610{
3611 struct i802_bss *bss = priv;
3612 struct wpa_driver_nl80211_data *drv = bss->drv;
3613 int ret = 0;
bd525934 3614 struct nl_msg *msg, *ssids, *freqs, *match_set_ssid, *match_sets;
d21c63b9
LC		 3615 size_t i;
3616
216eede8
DS		 3617#ifdef ANDROID
3618 if (!drv->capa.sched_scan_supported)
3619 return android_pno_start(bss, params);
3620#endif /* ANDROID */
3621
d21c63b9
LC		 3622 msg = nlmsg_alloc();
3623 ssids = nlmsg_alloc();
3624 freqs = nlmsg_alloc();
3625 if (!msg || !ssids || !freqs) {
3626 nlmsg_free(msg);
3627 nlmsg_free(ssids);
3628 nlmsg_free(freqs);
3629 return -1;
3630 }
3631
3632 os_free(drv->filter_ssids);
3633 drv->filter_ssids = params->filter_ssids;
3634 params->filter_ssids = NULL;
3635 drv->num_filter_ssids = params->num_filter_ssids;
3636
9fb04070 3637 nl80211_cmd(drv, msg, 0, NL80211_CMD_START_SCHED_SCAN);
d21c63b9
LC		 3638
3639 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3640
3641 NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval);
3642
fb67eec6
JM		 3643 if (drv->num_filter_ssids &&
3644 (int) drv->num_filter_ssids <= drv->capa.max_match_sets) {
bd525934
LC		 3645 match_sets = nlmsg_alloc();
3646
3647 for (i = 0; i < drv->num_filter_ssids; i++) {
3648 wpa_hexdump_ascii(MSG_MSGDUMP,
3649 "nl80211: Sched scan filter SSID",
3650 drv->filter_ssids[i].ssid,
3651 drv->filter_ssids[i].ssid_len);
3652
3653 match_set_ssid = nlmsg_alloc();
3654 nla_put(match_set_ssid,
3655 NL80211_ATTR_SCHED_SCAN_MATCH_SSID,
3656 drv->filter_ssids[i].ssid_len,
3657 drv->filter_ssids[i].ssid);
3658
3659 nla_put_nested(match_sets, i + 1, match_set_ssid);
3660
3661 nlmsg_free(match_set_ssid);
3662 }
3663
3664 nla_put_nested(msg, NL80211_ATTR_SCHED_SCAN_MATCH,
3665 match_sets);
3666 nlmsg_free(match_sets);
3667 }
3668
d21c63b9
LC		 3669 for (i = 0; i < params->num_ssids; i++) {
3670 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Sched scan SSID",
3671 params->ssids[i].ssid,
3672 params->ssids[i].ssid_len);
3673 NLA_PUT(ssids, i + 1, params->ssids[i].ssid_len,
3674 params->ssids[i].ssid);
3675 }
3676 if (params->num_ssids)
3677 nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids);
3678
3679 if (params->extra_ies) {
3680 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Sched scan extra IEs",
3681 params->extra_ies, params->extra_ies_len);
3682 NLA_PUT(msg, NL80211_ATTR_IE, params->extra_ies_len,
3683 params->extra_ies);
3684 }
3685
3686 if (params->freqs) {
3687 for (i = 0; params->freqs[i]; i++) {
3688 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u "
3689 "MHz", params->freqs[i]);
3690 NLA_PUT_U32(freqs, i + 1, params->freqs[i]);
3691 }
3692 nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES, freqs);
3693 }
3694
3695 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3696
3697 /* TODO: if we get an error here, we should fall back to normal scan */
3698
3699 msg = NULL;
3700 if (ret) {
3701 wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: "
3702 "ret=%d (%s)", ret, strerror(-ret));
3703 goto nla_put_failure;
3704 }
3705
3706 wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - "
3707 "scan interval %d msec", ret, interval);
3708
3709nla_put_failure:
3710 nlmsg_free(ssids);
3711 nlmsg_free(msg);
3712 nlmsg_free(freqs);
3713 return ret;
3714}
3715
3716
3717/**
3718 * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan
3719 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
3720 * Returns: 0 on success, -1 on failure or if not supported
3721 */
3722static int wpa_driver_nl80211_stop_sched_scan(void *priv)
3723{
3724 struct i802_bss *bss = priv;
3725 struct wpa_driver_nl80211_data *drv = bss->drv;
3726 int ret = 0;
3727 struct nl_msg *msg;
3728
216eede8
DS		 3729#ifdef ANDROID
3730 if (!drv->capa.sched_scan_supported)
3731 return android_pno_stop(bss);
3732#endif /* ANDROID */
3733
d21c63b9
LC		 3734 msg = nlmsg_alloc();
3735 if (!msg)
3736 return -1;
3737
9fb04070 3738 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN);
d21c63b9
LC		 3739
3740 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3741
3742 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3743 msg = NULL;
3744 if (ret) {
3745 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: "
3746 "ret=%d (%s)", ret, strerror(-ret));
3747 goto nla_put_failure;
3748 }
3749
3750 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret);
3751
3752nla_put_failure:
3753 nlmsg_free(msg);
3754 return ret;
3755}
3756
3757
3812464c
JM		 3758static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie)
3759{
3760 const u8 *end, *pos;
3761
3762 if (ies == NULL)
3763 return NULL;
3764
3765 pos = ies;
3766 end = ies + ies_len;
3767
3768 while (pos + 1 < end) {
3769 if (pos + 2 + pos[1] > end)
3770 break;
3771 if (pos[0] == ie)
3772 return pos;
3773 pos += 2 + pos[1];
3774 }
3775
3776 return NULL;
3777}
3778
3779
3780static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv,
3781 const u8 *ie, size_t ie_len)
3782{
3783 const u8 *ssid;
3784 size_t i;
3785
3786 if (drv->filter_ssids == NULL)
3787 return 0;
3788
3789 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID);
3790 if (ssid == NULL)
3791 return 1;
3792
3793 for (i = 0; i < drv->num_filter_ssids; i++) {
3794 if (ssid[1] == drv->filter_ssids[i].ssid_len &&
3795 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) ==
3796 0)
3797 return 0;
3798 }
3799
3800 return 1;
3801}
3802
3803
b3db1e1c 3804static int bss_info_handler(struct nl_msg *msg, void *arg)
3f5285e8 3805{
b3db1e1c
JM		 3806 struct nlattr *tb[NL80211_ATTR_MAX + 1];
3807 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3808 struct nlattr *bss[NL80211_BSS_MAX + 1];
3809 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
3810 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC },
3811 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 },
3812 [NL80211_BSS_TSF] = { .type = NLA_U64 },
3813 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 },
3814 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 },
3815 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC },
3816 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 },
3817 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 },
e6b8efeb 3818 [NL80211_BSS_STATUS] = { .type = NLA_U32 },
b3ad11bb 3819 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 },
8c090654 3820 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC },
b3db1e1c 3821 };
3812464c
JM		 3822 struct nl80211_bss_info_arg *_arg = arg;
3823 struct wpa_scan_results *res = _arg->res;
3f5285e8
JM		 3824 struct wpa_scan_res **tmp;
3825 struct wpa_scan_res *r;
8c090654
JM		 3826 const u8 *ie, *beacon_ie;
3827 size_t ie_len, beacon_ie_len;
3828 u8 *pos;
46957a9b 3829 size_t i;
3f5285e8 3830
b3db1e1c
JM		 3831 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3832 genlmsg_attrlen(gnlh, 0), NULL);
3833 if (!tb[NL80211_ATTR_BSS])
3834 return NL_SKIP;
3835 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS],
3836 bss_policy))
3837 return NL_SKIP;
f5a8d422
JM		 3838 if (bss[NL80211_BSS_STATUS]) {
3839 enum nl80211_bss_status status;
3840 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
3841 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
3842 bss[NL80211_BSS_FREQUENCY]) {
3843 _arg->assoc_freq =
3844 nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
3845 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz",
3846 _arg->assoc_freq);
3847 }
20f5a4c2
JM		 3848 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
3849 bss[NL80211_BSS_BSSID]) {
3850 os_memcpy(_arg->assoc_bssid,
3851 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN);
3852 wpa_printf(MSG_DEBUG, "nl80211: Associated with "
3853 MACSTR, MAC2STR(_arg->assoc_bssid));
3854 }
f5a8d422
JM		 3855 }
3856 if (!res)
3857 return NL_SKIP;
b3db1e1c
JM		 3858 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) {
3859 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
3860 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
3861 } else {
3862 ie = NULL;
3863 ie_len = 0;
3864 }
8c090654
JM		 3865 if (bss[NL80211_BSS_BEACON_IES]) {
3866 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]);
3867 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]);
3868 } else {
3869 beacon_ie = NULL;
3870 beacon_ie_len = 0;
3871 }
3f5285e8 3872
3812464c
JM		 3873 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie,
3874 ie ? ie_len : beacon_ie_len))
3875 return NL_SKIP;
3876
8c090654 3877 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len);
3f5285e8 3878 if (r == NULL)
b3db1e1c
JM		 3879 return NL_SKIP;
3880 if (bss[NL80211_BSS_BSSID])
3881 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]),
3882 ETH_ALEN);
3883 if (bss[NL80211_BSS_FREQUENCY])
3884 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
3885 if (bss[NL80211_BSS_BEACON_INTERVAL])
3886 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]);
3887 if (bss[NL80211_BSS_CAPABILITY])
3888 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]);
7c2849d2
JM		 3889 r->flags |= WPA_SCAN_NOISE_INVALID;
3890 if (bss[NL80211_BSS_SIGNAL_MBM]) {
b3db1e1c 3891 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]);
7c2849d2
JM		 3892 r->level /= 100; /* mBm to dBm */
3893 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID;
3894 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) {
3895 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]);
98ac6763 3896 r->flags |= WPA_SCAN_QUAL_INVALID;
7c2849d2
JM		 3897 } else
3898 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID;
b3db1e1c
JM		 3899 if (bss[NL80211_BSS_TSF])
3900 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]);
b3ad11bb
JM		 3901 if (bss[NL80211_BSS_SEEN_MS_AGO])
3902 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]);
b3db1e1c 3903 r->ie_len = ie_len;
8c090654
JM		 3904 pos = (u8 *) (r + 1);
3905 if (ie) {
3906 os_memcpy(pos, ie, ie_len);
3907 pos += ie_len;
3908 }
3909 r->beacon_ie_len = beacon_ie_len;
3910 if (beacon_ie)
3911 os_memcpy(pos, beacon_ie, beacon_ie_len);
3f5285e8 3912
e6b8efeb
JM		 3913 if (bss[NL80211_BSS_STATUS]) {
3914 enum nl80211_bss_status status;
3915 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
3916 switch (status) {
3917 case NL80211_BSS_STATUS_AUTHENTICATED:
3918 r->flags |= WPA_SCAN_AUTHENTICATED;
3919 break;
3920 case NL80211_BSS_STATUS_ASSOCIATED:
3921 r->flags |= WPA_SCAN_ASSOCIATED;
3922 break;
3923 default:
3924 break;
3925 }
3926 }
3927
46957a9b
JM		 3928 /*
3929 * cfg80211 maintains separate BSS table entries for APs if the same
3930 * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does
3931 * not use frequency as a separate key in the BSS table, so filter out
3932 * duplicated entries. Prefer associated BSS entry in such a case in
3933 * order to get the correct frequency into the BSS table.
3934 */
3935 for (i = 0; i < res->num; i++) {
3936 const u8 *s1, *s2;
3937 if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0)
3938 continue;
3939
3940 s1 = nl80211_get_ie((u8 *) (res->res[i] + 1),
3941 res->res[i]->ie_len, WLAN_EID_SSID);
3942 s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID);
3943 if (s1 == NULL || s2 == NULL || s1[1] != s2[1] ||
3944 os_memcmp(s1, s2, 2 + s1[1]) != 0)
3945 continue;
3946
3947 /* Same BSSID,SSID was already included in scan results */
3948 wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result "
3949 "for " MACSTR, MAC2STR(r->bssid));
3950
3951 if ((r->flags & WPA_SCAN_ASSOCIATED) &&
3952 !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) {
3953 os_free(res->res[i]);
3954 res->res[i] = r;
3955 } else
3956 os_free(r);
3957 return NL_SKIP;
3958 }
3959
3f5285e8
JM		 3960 tmp = os_realloc(res->res,
3961 (res->num + 1) * sizeof(struct wpa_scan_res *));
3962 if (tmp == NULL) {
3963 os_free(r);
b3db1e1c 3964 return NL_SKIP;
3f5285e8
JM		 3965 }
3966 tmp[res->num++] = r;
3967 res->res = tmp;
b3db1e1c
JM		 3968
3969 return NL_SKIP;
3f5285e8 3970}
b3db1e1c 3971
3f5285e8 3972
d72aad94
JM		 3973static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv,
3974 const u8 *addr)
3975{
3976 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
3977 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state "
582507be 3978 "mismatch (" MACSTR ")", MAC2STR(addr));
d72aad94
JM		 3979 wpa_driver_nl80211_mlme(drv, addr,
3980 NL80211_CMD_DEAUTHENTICATE,
77339912 3981 WLAN_REASON_PREV_AUTH_NOT_VALID, 1);
d72aad94
JM		 3982 }
3983}
3984
3985
e6b8efeb
JM		 3986static void wpa_driver_nl80211_check_bss_status(
3987 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res)
3988{
3989 size_t i;
3990
3991 for (i = 0; i < res->num; i++) {
3992 struct wpa_scan_res *r = res->res[i];
3993 if (r->flags & WPA_SCAN_AUTHENTICATED) {
3994 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
3995 "indicates BSS status with " MACSTR
3996 " as authenticated",
3997 MAC2STR(r->bssid));
b1f625e0 3998 if (is_sta_interface(drv->nlmode) &&
e6b8efeb
JM		 3999 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 &&
4000 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) !=
4001 0) {
4002 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID"
4003 " in local state (auth=" MACSTR
4004 " assoc=" MACSTR ")",
4005 MAC2STR(drv->auth_bssid),
4006 MAC2STR(drv->bssid));
582507be 4007 clear_state_mismatch(drv, r->bssid);
e6b8efeb
JM		 4008 }
4009 }
4010
4011 if (r->flags & WPA_SCAN_ASSOCIATED) {
4012 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
4013 "indicate BSS status with " MACSTR
4014 " as associated",
4015 MAC2STR(r->bssid));
b1f625e0 4016 if (is_sta_interface(drv->nlmode) &&
e6b8efeb
JM		 4017 !drv->associated) {
4018 wpa_printf(MSG_DEBUG, "nl80211: Local state "
4019 "(not associated) does not match "
4020 "with BSS state");
d72aad94 4021 clear_state_mismatch(drv, r->bssid);
b1f625e0 4022 } else if (is_sta_interface(drv->nlmode) &&
e6b8efeb
JM		 4023 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) !=
4024 0) {
4025 wpa_printf(MSG_DEBUG, "nl80211: Local state "
4026 "(associated with " MACSTR ") does "
4027 "not match with BSS state",
d72aad94
JM		 4028 MAC2STR(drv->bssid));
4029 clear_state_mismatch(drv, r->bssid);
4030 clear_state_mismatch(drv, drv->bssid);
e6b8efeb
JM		 4031 }
4032 }
4033 }
4034}
4035
4036
7e5ba1b9 4037static struct wpa_scan_results *
8856462d 4038nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv)
3f5285e8 4039{
b3db1e1c 4040 struct nl_msg *msg;
3f5285e8 4041 struct wpa_scan_results *res;
b3db1e1c 4042 int ret;
3812464c 4043 struct nl80211_bss_info_arg arg;
3f5285e8
JM		 4044
4045 res = os_zalloc(sizeof(*res));
b3db1e1c 4046 if (res == NULL)
8e2c104f 4047 return NULL;
b3db1e1c
JM		 4048 msg = nlmsg_alloc();
4049 if (!msg)
4050 goto nla_put_failure;
3f5285e8 4051
9fb04070 4052 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
b3db1e1c 4053 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3f5285e8 4054
3812464c
JM		 4055 arg.drv = drv;
4056 arg.res = res;
4057 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
b3db1e1c
JM		 4058 msg = NULL;
4059 if (ret == 0) {
577db0ae
GM		 4060 wpa_printf(MSG_DEBUG, "nl80211: Received scan results (%lu "
4061 "BSSes)", (unsigned long) res->num);
4062 nl80211_get_noise_for_scan_results(drv, res);
b3db1e1c 4063 return res;
3f5285e8 4064 }
b3db1e1c
JM		 4065 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
4066 "(%s)", ret, strerror(-ret));
4067nla_put_failure:
4068 nlmsg_free(msg);
4069 wpa_scan_results_free(res);
4070 return NULL;
3f5285e8
JM		 4071}
4072
4073
8856462d
JM		 4074/**
4075 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results
4076 * @priv: Pointer to private wext data from wpa_driver_nl80211_init()
4077 * Returns: Scan results on success, -1 on failure
4078 */
4079static struct wpa_scan_results *
4080wpa_driver_nl80211_get_scan_results(void *priv)
4081{
a2e40bb6
FF		 4082 struct i802_bss *bss = priv;
4083 struct wpa_driver_nl80211_data *drv = bss->drv;
8856462d
JM		 4084 struct wpa_scan_results *res;
4085
4086 res = nl80211_get_scan_results(drv);
4087 if (res)
4088 wpa_driver_nl80211_check_bss_status(drv, res);
4089 return res;
4090}
4091
4092
4093static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv)
4094{
4095 struct wpa_scan_results *res;
4096 size_t i;
4097
4098 res = nl80211_get_scan_results(drv);
4099 if (res == NULL) {
4100 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results");
4101 return;
4102 }
4103
4104 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump");
4105 for (i = 0; i < res->num; i++) {
4106 struct wpa_scan_res *r = res->res[i];
4107 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s",
4108 (int) i, (int) res->num, MAC2STR(r->bssid),
4109 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "",
4110 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : "");
4111 }
4112
4113 wpa_scan_results_free(res);
4114}
4115
4116
642187d6 4117static int wpa_driver_nl80211_set_key(const char *ifname, void *priv,
71934751
JM		 4118 enum wpa_alg alg, const u8 *addr,
4119 int key_idx, int set_tx,
642187d6
JM		 4120 const u8 *seq, size_t seq_len,
4121 const u8 *key, size_t key_len)
3f5285e8 4122{
a2e40bb6
FF		 4123 struct i802_bss *bss = priv;
4124 struct wpa_driver_nl80211_data *drv = bss->drv;
642187d6 4125 int ifindex = if_nametoindex(ifname);
3f5285e8 4126 struct nl_msg *msg;
1ad1cdc2 4127 int ret;
3f5285e8 4128
1ad1cdc2
JM		 4129 wpa_printf(MSG_DEBUG, "%s: ifindex=%d alg=%d addr=%p key_idx=%d "
4130 "set_tx=%d seq_len=%lu key_len=%lu",
4131 __func__, ifindex, alg, addr, key_idx, set_tx,
3f5285e8 4132 (unsigned long) seq_len, (unsigned long) key_len);
8c66e185
JM		 4133#ifdef CONFIG_TDLS
4134 if (key_idx == -1)
4135 key_idx = 0;
4136#endif /* CONFIG_TDLS */
3f5285e8
JM		 4137
4138 msg = nlmsg_alloc();
1ad1cdc2
JM		 4139 if (!msg)
4140 return -ENOMEM;
3f5285e8
JM		 4141
4142 if (alg == WPA_ALG_NONE) {
9fb04070 4143 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY);
3f5285e8 4144 } else {
9fb04070 4145 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY);
3f5285e8 4146 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key);
d723bab4
JM		 4147 switch (alg) {
4148 case WPA_ALG_WEP:
4149 if (key_len == 5)
4150 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4151 WLAN_CIPHER_SUITE_WEP40);
4152 else
4153 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4154 WLAN_CIPHER_SUITE_WEP104);
4155 break;
4156 case WPA_ALG_TKIP:
4157 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4158 WLAN_CIPHER_SUITE_TKIP);
4159 break;
4160 case WPA_ALG_CCMP:
4161 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4162 WLAN_CIPHER_SUITE_CCMP);
4163 break;
4164 case WPA_ALG_IGTK:
4165 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
4166 WLAN_CIPHER_SUITE_AES_CMAC);
4167 break;
4168 default:
4169 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
4170 "algorithm %d", __func__, alg);
3f5285e8
JM		 4171 nlmsg_free(msg);
4172 return -1;
4173 }
4174 }
4175
849ef835 4176 if (seq && seq_len)
1ad1cdc2
JM		 4177 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq);
4178
0382097e 4179 if (addr && !is_broadcast_ether_addr(addr)) {
3f5285e8
JM		 4180 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr));
4181 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
89c38e32
JM		 4182
4183 if (alg != WPA_ALG_WEP && key_idx && !set_tx) {
4184 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK");
4185 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE,
4186 NL80211_KEYTYPE_GROUP);
4187 }
60ea8187
JM		 4188 } else if (addr && is_broadcast_ether_addr(addr)) {
4189 struct nl_msg *types;
4190 int err;
4191 wpa_printf(MSG_DEBUG, " broadcast key");
4192 types = nlmsg_alloc();
4193 if (!types)
4194 goto nla_put_failure;
4195 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
4196 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
4197 types);
4198 nlmsg_free(types);
4199 if (err)
4200 goto nla_put_failure;
3f5285e8
JM		 4201 }
4202 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1ad1cdc2 4203 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
3f5285e8 4204
1ad1cdc2 4205 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
15664ad0 4206 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE)
1ad1cdc2
JM		 4207 ret = 0;
4208 if (ret)
4209 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)",
4210 ret, strerror(-ret));
3f5285e8 4211
1ad1cdc2
JM		 4212 /*
4213 * If we failed or don't need to set the default TX key (below),
4214 * we're done here.
4215 */
4216 if (ret || !set_tx || alg == WPA_ALG_NONE)
4217 return ret;
b1f625e0 4218 if (is_ap_interface(drv->nlmode) && addr &&
0382097e 4219 !is_broadcast_ether_addr(addr))
de12717a 4220 return ret;
3f5285e8 4221
1ad1cdc2
JM		 4222 msg = nlmsg_alloc();
4223 if (!msg)
4224 return -ENOMEM;
3f5285e8 4225
9fb04070 4226 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY);
1ad1cdc2
JM		 4227 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
4228 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
4229 if (alg == WPA_ALG_IGTK)
4230 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT);
4231 else
4232 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
60ea8187
JM		 4233 if (addr && is_broadcast_ether_addr(addr)) {
4234 struct nl_msg *types;
4235 int err;
4236 types = nlmsg_alloc();
4237 if (!types)
4238 goto nla_put_failure;
4239 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
4240 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
4241 types);
4242 nlmsg_free(types);
4243 if (err)
4244 goto nla_put_failure;
4245 } else if (addr) {
4246 struct nl_msg *types;
4247 int err;
4248 types = nlmsg_alloc();
4249 if (!types)
4250 goto nla_put_failure;
4251 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_UNICAST);
4252 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
4253 types);
4254 nlmsg_free(types);
4255 if (err)
4256 goto nla_put_failure;
4257 }
3f5285e8 4258
1ad1cdc2
JM		 4259 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4260 if (ret == -ENOENT)
4261 ret = 0;
4262 if (ret)
4263 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; "
4264 "err=%d %s)", ret, strerror(-ret));
4265 return ret;
3f5285e8
JM		 4266
4267nla_put_failure:
5883168a 4268 nlmsg_free(msg);
6241fcb1 4269 return -ENOBUFS;
3f5285e8
JM		 4270}
4271
4272
71934751 4273static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg,
0194fedb
JB		 4274 int key_idx, int defkey,
4275 const u8 *seq, size_t seq_len,
4276 const u8 *key, size_t key_len)
4277{
4278 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY);
4279 if (!key_attr)
4280 return -1;
4281
4282 if (defkey && alg == WPA_ALG_IGTK)
4283 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT);
4284 else if (defkey)
4285 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
4286
4287 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx);
4288
d723bab4
JM		 4289 switch (alg) {
4290 case WPA_ALG_WEP:
4291 if (key_len == 5)
2aa5f847
JM		 4292 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
4293 WLAN_CIPHER_SUITE_WEP40);
d723bab4 4294 else
2aa5f847
JM		 4295 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
4296 WLAN_CIPHER_SUITE_WEP104);
d723bab4
JM		 4297 break;
4298 case WPA_ALG_TKIP:
2aa5f847 4299 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP);
d723bab4
JM		 4300 break;
4301 case WPA_ALG_CCMP:
2aa5f847 4302 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP);
d723bab4
JM		 4303 break;
4304 case WPA_ALG_IGTK:
2aa5f847
JM		 4305 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
4306 WLAN_CIPHER_SUITE_AES_CMAC);
d723bab4
JM		 4307 break;
4308 default:
4309 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
4310 "algorithm %d", __func__, alg);
0194fedb 4311 return -1;
d723bab4 4312 }
0194fedb
JB		 4313
4314 if (seq && seq_len)
4315 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq);
4316
4317 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key);
4318
4319 nla_nest_end(msg, key_attr);
4320
4321 return 0;
4322 nla_put_failure:
4323 return -1;
4324}
4325
c811d5bc 4326
cfaab580
ZY		 4327static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params,
4328 struct nl_msg *msg)
4329{
4330 int i, privacy = 0;
4331 struct nlattr *nl_keys, *nl_key;
4332
4333 for (i = 0; i < 4; i++) {
4334 if (!params->wep_key[i])
4335 continue;
4336 privacy = 1;
4337 break;
4338 }
ce04af5a
JM		 4339 if (params->wps == WPS_MODE_PRIVACY)
4340 privacy = 1;
4341 if (params->pairwise_suite &&
4342 params->pairwise_suite != WPA_CIPHER_NONE)
4343 privacy = 1;
4344
cfaab580
ZY		 4345 if (!privacy)
4346 return 0;
4347
4348 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
4349
4350 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS);
4351 if (!nl_keys)
4352 goto nla_put_failure;
4353
4354 for (i = 0; i < 4; i++) {
4355 if (!params->wep_key[i])
4356 continue;
4357
4358 nl_key = nla_nest_start(msg, i);
4359 if (!nl_key)
4360 goto nla_put_failure;
4361
4362 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i],
4363 params->wep_key[i]);
4364 if (params->wep_key_len[i] == 5)
4365 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
4366 WLAN_CIPHER_SUITE_WEP40);
4367 else
4368 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
4369 WLAN_CIPHER_SUITE_WEP104);
4370
4371 NLA_PUT_U8(msg, NL80211_KEY_IDX, i);
4372
4373 if (i == params->wep_tx_keyidx)
4374 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
4375
4376 nla_nest_end(msg, nl_key);
4377 }
4378 nla_nest_end(msg, nl_keys);
4379
4380 return 0;
4381
4382nla_put_failure:
4383 return -ENOBUFS;
4384}
4385
4386
c2a04078 4387static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
77339912
JM		 4388 const u8 *addr, int cmd, u16 reason_code,
4389 int local_state_change)
c2a04078
JM		 4390{
4391 int ret = -1;
4392 struct nl_msg *msg;
4393
4394 msg = nlmsg_alloc();
4395 if (!msg)
4396 return -1;
4397
9fb04070 4398 nl80211_cmd(drv, msg, 0, cmd);
c2a04078
JM		 4399
4400 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4401 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code);
4402 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
77339912
JM		 4403 if (local_state_change)
4404 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
c2a04078
JM		 4405
4406 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4407 msg = NULL;
4408 if (ret) {
3b7ea880
BG		 4409 wpa_dbg(drv->ctx, MSG_DEBUG,
4410 "nl80211: MLME command failed: reason=%u ret=%d (%s)",
4411 reason_code, ret, strerror(-ret));
c2a04078
JM		 4412 goto nla_put_failure;
4413 }
4414 ret = 0;
4415
4416nla_put_failure:
4417 nlmsg_free(msg);
4418 return ret;
4419}
3f5285e8
JM		 4420
4421
cfaab580
ZY		 4422static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv,
4423 const u8 *addr, int reason_code)
4424{
2e75a2b3
JM		 4425 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)",
4426 __func__, MAC2STR(addr), reason_code);
cfaab580
ZY		 4427 drv->associated = 0;
4428 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISCONNECT,
77339912 4429 reason_code, 0);
cfaab580
ZY		 4430}
4431
4432
3f5285e8 4433static int wpa_driver_nl80211_deauthenticate(void *priv, const u8 *addr,
c2a04078 4434 int reason_code)
3f5285e8 4435{
a2e40bb6
FF		 4436 struct i802_bss *bss = priv;
4437 struct wpa_driver_nl80211_data *drv = bss->drv;
cfaab580
ZY		 4438 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
4439 return wpa_driver_nl80211_disconnect(drv, addr, reason_code);
2e75a2b3
JM		 4440 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)",
4441 __func__, MAC2STR(addr), reason_code);
13405f35 4442 drv->associated = 0;
21bdbe38
JM		 4443 if (drv->nlmode == NL80211_IFTYPE_ADHOC)
4444 return nl80211_leave_ibss(drv);
c2a04078 4445 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE,
77339912 4446 reason_code, 0);
3f5285e8
JM		 4447}
4448
4449
4450static int wpa_driver_nl80211_disassociate(void *priv, const u8 *addr,
c2a04078 4451 int reason_code)
3f5285e8 4452{
a2e40bb6
FF		 4453 struct i802_bss *bss = priv;
4454 struct wpa_driver_nl80211_data *drv = bss->drv;
cfaab580
ZY		 4455 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
4456 return wpa_driver_nl80211_disconnect(drv, addr, reason_code);
c2a04078 4457 wpa_printf(MSG_DEBUG, "%s", __func__);
13405f35 4458 drv->associated = 0;
c2a04078 4459 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISASSOCIATE,
77339912 4460 reason_code, 0);
3f5285e8
JM		 4461}
4462
4463
536fd62d
JM		 4464static void nl80211_copy_auth_params(struct wpa_driver_nl80211_data *drv,
4465 struct wpa_driver_auth_params *params)
4466{
4467 int i;
4468
4469 drv->auth_freq = params->freq;
4470 drv->auth_alg = params->auth_alg;
4471 drv->auth_wep_tx_keyidx = params->wep_tx_keyidx;
4472 drv->auth_local_state_change = params->local_state_change;
4473 drv->auth_p2p = params->p2p;
4474
4475 if (params->bssid)
4476 os_memcpy(drv->auth_bssid_, params->bssid, ETH_ALEN);
4477 else
4478 os_memset(drv->auth_bssid_, 0, ETH_ALEN);
4479
4480 if (params->ssid) {
4481 os_memcpy(drv->auth_ssid, params->ssid, params->ssid_len);
4482 drv->auth_ssid_len = params->ssid_len;
4483 } else
4484 drv->auth_ssid_len = 0;
4485
4486
4487 os_free(drv->auth_ie);
4488 drv->auth_ie = NULL;
4489 drv->auth_ie_len = 0;
4490 if (params->ie) {
4491 drv->auth_ie = os_malloc(params->ie_len);
4492 if (drv->auth_ie) {
4493 os_memcpy(drv->auth_ie, params->ie, params->ie_len);
4494 drv->auth_ie_len = params->ie_len;
4495 }
4496 }
4497
4498 for (i = 0; i < 4; i++) {
4499 if (params->wep_key[i] && params->wep_key_len[i] &&
4500 params->wep_key_len[i] <= 16) {
4501 os_memcpy(drv->auth_wep_key[i], params->wep_key[i],
4502 params->wep_key_len[i]);
4503 drv->auth_wep_key_len[i] = params->wep_key_len[i];
4504 } else
4505 drv->auth_wep_key_len[i] = 0;
4506 }
4507}
4508
4509
c2a04078
JM		 4510static int wpa_driver_nl80211_authenticate(
4511 void *priv, struct wpa_driver_auth_params *params)
4512{
a2e40bb6
FF		 4513 struct i802_bss *bss = priv;
4514 struct wpa_driver_nl80211_data *drv = bss->drv;
a0b2f99b 4515 int ret = -1, i;
c2a04078
JM		 4516 struct nl_msg *msg;
4517 enum nl80211_auth_type type;
2f4f73b1 4518 enum nl80211_iftype nlmode;
6d6f4bb8 4519 int count = 0;
536fd62d
JM		 4520 int is_retry;
4521
4522 is_retry = drv->retry_auth;
4523 drv->retry_auth = 0;
c2a04078
JM		 4524
4525 drv->associated = 0;
e6b8efeb 4526 os_memset(drv->auth_bssid, 0, ETH_ALEN);
af473088 4527 /* FIX: IBSS mode */
2f4f73b1
EP		 4528 nlmode = params->p2p ?
4529 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
4530 if (drv->nlmode != nlmode &&
4531 wpa_driver_nl80211_set_mode(priv, nlmode) < 0)
4a867032
JM		 4532 return -1;
4533
6d6f4bb8 4534retry:
c2a04078
JM		 4535 msg = nlmsg_alloc();
4536 if (!msg)
4537 return -1;
4538
4539 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)",
4540 drv->ifindex);
a0b2f99b 4541
9fb04070 4542 nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE);
0194fedb 4543
a0b2f99b
JM		 4544 for (i = 0; i < 4; i++) {
4545 if (!params->wep_key[i])
4546 continue;
2ea2fcc7
HS		 4547 wpa_driver_nl80211_set_key(bss->ifname, priv, WPA_ALG_WEP,
4548 NULL, i,
a0b2f99b
JM		 4549 i == params->wep_tx_keyidx, NULL, 0,
4550 params->wep_key[i],
4551 params->wep_key_len[i]);
0194fedb
JB		 4552 if (params->wep_tx_keyidx != i)
4553 continue;
4554 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0,
4555 params->wep_key[i], params->wep_key_len[i])) {
4556 nlmsg_free(msg);
4557 return -1;
4558 }
a0b2f99b
JM		 4559 }
4560
c2a04078
JM		 4561 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4562 if (params->bssid) {
4563 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
4564 MAC2STR(params->bssid));
4565 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
4566 }
4567 if (params->freq) {
4568 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
4569 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
4570 }
4571 if (params->ssid) {
4572 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
4573 params->ssid, params->ssid_len);
4574 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
4575 params->ssid);
4576 }
4577 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len);
4578 if (params->ie)
4579 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie);
abd9fafa 4580 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
c2a04078 4581 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
abd9fafa 4582 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
c2a04078 4583 type = NL80211_AUTHTYPE_SHARED_KEY;
abd9fafa 4584 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
c2a04078 4585 type = NL80211_AUTHTYPE_NETWORK_EAP;
abd9fafa 4586 else if (params->auth_alg & WPA_AUTH_ALG_FT)
c2a04078
JM		 4587 type = NL80211_AUTHTYPE_FT;
4588 else
4589 goto nla_put_failure;
4590 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
4591 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
77339912
JM		 4592 if (params->local_state_change) {
4593 wpa_printf(MSG_DEBUG, " * Local state change only");
4594 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
4595 }
c2a04078
JM		 4596
4597 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4598 msg = NULL;
4599 if (ret) {
3b7ea880
BG		 4600 wpa_dbg(drv->ctx, MSG_DEBUG,
4601 "nl80211: MLME command failed (auth): ret=%d (%s)",
4602 ret, strerror(-ret));
6d6f4bb8 4603 count++;
77339912
JM		 4604 if (ret == -EALREADY && count == 1 && params->bssid &&
4605 !params->local_state_change) {
6d6f4bb8
JM		 4606 /*
4607 * mac80211 does not currently accept new
4608 * authentication if we are already authenticated. As a
4609 * workaround, force deauthentication and try again.
4610 */
4611 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication "
4612 "after forced deauthentication");
4613 wpa_driver_nl80211_deauthenticate(
5205c4f9 4614 bss, params->bssid,
6d6f4bb8
JM		 4615 WLAN_REASON_PREV_AUTH_NOT_VALID);
4616 nlmsg_free(msg);
4617 goto retry;
4618 }
536fd62d
JM		 4619
4620 if (ret == -ENOENT && params->freq && !is_retry) {
4621 /*
4622 * cfg80211 has likely expired the BSS entry even
4623 * though it was previously available in our internal
4624 * BSS table. To recover quickly, start a single
4625 * channel scan on the specified channel.
4626 */
4627 struct wpa_driver_scan_params scan;
4628 int freqs[2];
4629
4630 os_memset(&scan, 0, sizeof(scan));
4631 scan.num_ssids = 1;
4632 if (params->ssid) {
4633 scan.ssids[0].ssid = params->ssid;
4634 scan.ssids[0].ssid_len = params->ssid_len;
4635 }
4636 freqs[0] = params->freq;
4637 freqs[1] = 0;
4638 scan.freqs = freqs;
4639 wpa_printf(MSG_DEBUG, "nl80211: Trigger single "
4640 "channel scan to refresh cfg80211 BSS "
4641 "entry");
4642 ret = wpa_driver_nl80211_scan(bss, &scan);
4643 if (ret == 0) {
4644 nl80211_copy_auth_params(drv, params);
4645 drv->scan_for_auth = 1;
4646 }
8c3ba078
JM		 4647 } else if (is_retry) {
4648 /*
4649 * Need to indicate this with an event since the return
4650 * value from the retry is not delivered to core code.
4651 */
4652 union wpa_event_data event;
4653 wpa_printf(MSG_DEBUG, "nl80211: Authentication retry "
4654 "failed");
4655 os_memset(&event, 0, sizeof(event));
4656 os_memcpy(event.timeout_event.addr, drv->auth_bssid_,
4657 ETH_ALEN);
4658 wpa_supplicant_event(drv->ctx, EVENT_AUTH_TIMED_OUT,
4659 &event);
536fd62d
JM		 4660 }
4661
c2a04078
JM		 4662 goto nla_put_failure;
4663 }
4664 ret = 0;
4665 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send "
4666 "successfully");
4667
4668nla_put_failure:
4669 nlmsg_free(msg);
4670 return ret;
4671}
4672
4673
536fd62d
JM		 4674static int wpa_driver_nl80211_authenticate_retry(
4675 struct wpa_driver_nl80211_data *drv)
4676{
4677 struct wpa_driver_auth_params params;
4678 struct i802_bss *bss = &drv->first_bss;
4679 int i;
4680
4681 wpa_printf(MSG_DEBUG, "nl80211: Try to authenticate again");
4682
4683 os_memset(&params, 0, sizeof(params));
4684 params.freq = drv->auth_freq;
4685 params.auth_alg = drv->auth_alg;
4686 params.wep_tx_keyidx = drv->auth_wep_tx_keyidx;
4687 params.local_state_change = drv->auth_local_state_change;
4688 params.p2p = drv->auth_p2p;
4689
4690 if (!is_zero_ether_addr(drv->auth_bssid_))
4691 params.bssid = drv->auth_bssid_;
4692
4693 if (drv->auth_ssid_len) {
4694 params.ssid = drv->auth_ssid;
4695 params.ssid_len = drv->auth_ssid_len;
4696 }
4697
4698 params.ie = drv->auth_ie;
4699 params.ie_len = drv->auth_ie_len;
4700
4701 for (i = 0; i < 4; i++) {
4702 if (drv->auth_wep_key_len[i]) {
4703 params.wep_key[i] = drv->auth_wep_key[i];
4704 params.wep_key_len[i] = drv->auth_wep_key_len[i];
4705 }
4706 }
4707
4708 drv->retry_auth = 1;
4709 return wpa_driver_nl80211_authenticate(bss, &params);
4710}
4711
4712
282d5590
JM		 4713struct phy_info_arg {
4714 u16 *num_modes;
4715 struct hostapd_hw_modes *modes;
4716};
4717
4718static int phy_info_handler(struct nl_msg *msg, void *arg)
4719{
4720 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
4721 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
4722 struct phy_info_arg *phy_info = arg;
4723
4724 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
4725
4726 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
4727 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
4728 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
4729 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
4730 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG },
4731 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG },
4732 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
4733 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
4734 };
4735
4736 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
4737 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
4738 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
4739 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = { .type = NLA_FLAG },
4740 };
4741
4742 struct nlattr *nl_band;
4743 struct nlattr *nl_freq;
4744 struct nlattr *nl_rate;
4745 int rem_band, rem_freq, rem_rate;
4746 struct hostapd_hw_modes *mode;
4747 int idx, mode_is_set;
4748
4749 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
4750 genlmsg_attrlen(gnlh, 0), NULL);
4751
4752 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
4753 return NL_SKIP;
4754
4755 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) {
e62fb0a0 4756 mode = os_realloc(phy_info->modes, (*phy_info->num_modes + 1) * sizeof(*mode));
282d5590
JM		 4757 if (!mode)
4758 return NL_SKIP;
4759 phy_info->modes = mode;
4760
4761 mode_is_set = 0;
4762
4763 mode = &phy_info->modes[*(phy_info->num_modes)];
4764 memset(mode, 0, sizeof(*mode));
e3b473eb 4765 mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN;
282d5590
JM		 4766 *(phy_info->num_modes) += 1;
4767
4768 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
4769 nla_len(nl_band), NULL);
4770
4771 if (tb_band[NL80211_BAND_ATTR_HT_CAPA]) {
4772 mode->ht_capab = nla_get_u16(
4773 tb_band[NL80211_BAND_ATTR_HT_CAPA]);
4774 }
4775
be8eb8ab
JM		 4776 if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) {
4777 mode->a_mpdu_params |= nla_get_u8(
4778 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) &
4779 0x03;
4780 }
4781
4782 if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) {
4783 mode->a_mpdu_params |= nla_get_u8(
4784 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) <<
4785 2;
4786 }
4787
08eb154d
JM		 4788 if (tb_band[NL80211_BAND_ATTR_HT_MCS_SET] &&
4789 nla_len(tb_band[NL80211_BAND_ATTR_HT_MCS_SET])) {
4790 u8 *mcs;
4791 mcs = nla_data(tb_band[NL80211_BAND_ATTR_HT_MCS_SET]);
4792 os_memcpy(mode->mcs_set, mcs, 16);
4793 }
4794
282d5590
JM		 4795 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
4796 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
4797 nla_len(nl_freq), freq_policy);
4798 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
4799 continue;
4800 mode->num_channels++;
4801 }
4802
e62fb0a0 4803 mode->channels = os_zalloc(mode->num_channels * sizeof(struct hostapd_channel_data));
282d5590
JM		 4804 if (!mode->channels)
4805 return NL_SKIP;
4806
4807 idx = 0;
4808
4809 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
4810 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
4811 nla_len(nl_freq), freq_policy);
4812 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
4813 continue;
4814
4815 mode->channels[idx].freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
4816 mode->channels[idx].flag = 0;
4817
4818 if (!mode_is_set) {
4819 /* crude heuristic */
4820 if (mode->channels[idx].freq < 4000)
4821 mode->mode = HOSTAPD_MODE_IEEE80211B;
4822 else
4823 mode->mode = HOSTAPD_MODE_IEEE80211A;
4824 mode_is_set = 1;
4825 }
4826
4827 /* crude heuristic */
4828 if (mode->channels[idx].freq < 4000)
5a0ffb5f 4829 if (mode->channels[idx].freq == 2484)
282d5590
JM		 4830 mode->channels[idx].chan = 14;
4831 else
4832 mode->channels[idx].chan = (mode->channels[idx].freq - 2407) / 5;
4833 else
4834 mode->channels[idx].chan = mode->channels[idx].freq/5 - 1000;
4835
4836 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
4837 mode->channels[idx].flag |=
4838 HOSTAPD_CHAN_DISABLED;
4839 if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
4840 mode->channels[idx].flag |=
4841 HOSTAPD_CHAN_PASSIVE_SCAN;
4842 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS])
4843 mode->channels[idx].flag |=
4844 HOSTAPD_CHAN_NO_IBSS;
4845 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
4846 mode->channels[idx].flag |=
4847 HOSTAPD_CHAN_RADAR;
4848
4849 if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] &&
4850 !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
4851 mode->channels[idx].max_tx_power =
4852 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100;
4853
4854 idx++;
4855 }
4856
4857 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
4858 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
4859 nla_len(nl_rate), rate_policy);
4860 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
4861 continue;
4862 mode->num_rates++;
4863 }
4864
e62fb0a0 4865 mode->rates = os_zalloc(mode->num_rates * sizeof(int));
282d5590
JM		 4866 if (!mode->rates)
4867 return NL_SKIP;
4868
4869 idx = 0;
4870
4871 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
4872 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
4873 nla_len(nl_rate), rate_policy);
4874 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
4875 continue;
fb7842aa 4876 mode->rates[idx] = nla_get_u32(tb_rate[NL80211_BITRATE_ATTR_RATE]);
282d5590
JM		 4877
4878 /* crude heuristic */
4879 if (mode->mode == HOSTAPD_MODE_IEEE80211B &&
fb7842aa 4880 mode->rates[idx] > 200)
282d5590
JM		 4881 mode->mode = HOSTAPD_MODE_IEEE80211G;
4882
282d5590
JM		 4883 idx++;
4884 }
4885 }
4886
4887 return NL_SKIP;
4888}
4889
4890static struct hostapd_hw_modes *
4891wpa_driver_nl80211_add_11b(struct hostapd_hw_modes *modes, u16 *num_modes)
4892{
4893 u16 m;
4894 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
4895 int i, mode11g_idx = -1;
4896
4897 /* If only 802.11g mode is included, use it to construct matching
4898 * 802.11b mode data. */
4899
4900 for (m = 0; m < *num_modes; m++) {
4901 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
4902 return modes; /* 802.11b already included */
4903 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
4904 mode11g_idx = m;
4905 }
4906
4907 if (mode11g_idx < 0)
4908 return modes; /* 2.4 GHz band not supported at all */
4909
4910 nmodes = os_realloc(modes, (*num_modes + 1) * sizeof(*nmodes));
4911 if (nmodes == NULL)
4912 return modes; /* Could not add 802.11b mode */
4913
4914 mode = &nmodes[*num_modes];
4915 os_memset(mode, 0, sizeof(*mode));
4916 (*num_modes)++;
4917 modes = nmodes;
4918
4919 mode->mode = HOSTAPD_MODE_IEEE80211B;
4920
4921 mode11g = &modes[mode11g_idx];
4922 mode->num_channels = mode11g->num_channels;
4923 mode->channels = os_malloc(mode11g->num_channels *
4924 sizeof(struct hostapd_channel_data));
4925 if (mode->channels == NULL) {
4926 (*num_modes)--;
4927 return modes; /* Could not add 802.11b mode */
4928 }
4929 os_memcpy(mode->channels, mode11g->channels,
4930 mode11g->num_channels * sizeof(struct hostapd_channel_data));
4931
4932 mode->num_rates = 0;
fb7842aa 4933 mode->rates = os_malloc(4 * sizeof(int));
282d5590
JM		 4934 if (mode->rates == NULL) {
4935 os_free(mode->channels);
4936 (*num_modes)--;
4937 return modes; /* Could not add 802.11b mode */
4938 }
4939
4940 for (i = 0; i < mode11g->num_rates; i++) {
fb7842aa
JM		 4941 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 &&
4942 mode11g->rates[i] != 55 && mode11g->rates[i] != 110)
282d5590
JM		 4943 continue;
4944 mode->rates[mode->num_rates] = mode11g->rates[i];
4945 mode->num_rates++;
4946 if (mode->num_rates == 4)
4947 break;
4948 }
4949
4950 if (mode->num_rates == 0) {
4951 os_free(mode->channels);
4952 os_free(mode->rates);
4953 (*num_modes)--;
4954 return modes; /* No 802.11b rates */
4955 }
4956
4957 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
4958 "information");
4959
4960 return modes;
4961}
4962
4963
d8e66e80
JM		 4964static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start,
4965 int end)
4966{
4967 int c;
4968
4969 for (c = 0; c < mode->num_channels; c++) {
4970 struct hostapd_channel_data *chan = &mode->channels[c];
4971 if (chan->freq - 10 >= start && chan->freq + 10 <= end)
4972 chan->flag |= HOSTAPD_CHAN_HT40;
4973 }
4974}
4975
4976
4977static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start,
4978 int end)
4979{
4980 int c;
4981
4982 for (c = 0; c < mode->num_channels; c++) {
4983 struct hostapd_channel_data *chan = &mode->channels[c];
4984 if (!(chan->flag & HOSTAPD_CHAN_HT40))
4985 continue;
4986 if (chan->freq - 30 >= start && chan->freq - 10 <= end)
4987 chan->flag |= HOSTAPD_CHAN_HT40MINUS;
4988 if (chan->freq + 10 >= start && chan->freq + 30 <= end)
4989 chan->flag |= HOSTAPD_CHAN_HT40PLUS;
4990 }
4991}
4992
4993
4994static void nl80211_reg_rule_ht40(struct nlattr *tb[],
4995 struct phy_info_arg *results)
4996{
4997 u32 start, end, max_bw;
4998 u16 m;
4999
5000 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
5001 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
5002 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
5003 return;
5004
5005 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
5006 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
5007 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
5008
5009 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz",
5010 start, end, max_bw);
5011 if (max_bw < 40)
5012 return;
5013
5014 for (m = 0; m < *results->num_modes; m++) {
5015 if (!(results->modes[m].ht_capab &
5016 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
5017 continue;
5018 nl80211_set_ht40_mode(&results->modes[m], start, end);
5019 }
5020}
5021
5022
5023static void nl80211_reg_rule_sec(struct nlattr *tb[],
5024 struct phy_info_arg *results)
5025{
5026 u32 start, end, max_bw;
5027 u16 m;
5028
5029 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
5030 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
5031 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
5032 return;
5033
5034 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
5035 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
5036 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
5037
5038 if (max_bw < 20)
5039 return;
5040
5041 for (m = 0; m < *results->num_modes; m++) {
5042 if (!(results->modes[m].ht_capab &
5043 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
5044 continue;
5045 nl80211_set_ht40_mode_sec(&results->modes[m], start, end);
5046 }
5047}
5048
5049
5050static int nl80211_get_reg(struct nl_msg *msg, void *arg)
5051{
5052 struct phy_info_arg *results = arg;
5053 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
5054 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
5055 struct nlattr *nl_rule;
5056 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1];
5057 int rem_rule;
5058 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
5059 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
5060 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
5061 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
5062 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
5063 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
5064 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
5065 };
5066
5067 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
5068 genlmsg_attrlen(gnlh, 0), NULL);
5069 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] ||
5070 !tb_msg[NL80211_ATTR_REG_RULES]) {
5071 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information "
5072 "available");
5073 return NL_SKIP;
5074 }
5075
5076 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s",
5077 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]));
5078
5079 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
5080 {
5081 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
5082 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
5083 nl80211_reg_rule_ht40(tb_rule, results);
5084 }
5085
5086 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
5087 {
5088 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
5089 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
5090 nl80211_reg_rule_sec(tb_rule, results);
5091 }
5092
5093 return NL_SKIP;
5094}
5095
5096
5097static int nl80211_set_ht40_flags(struct wpa_driver_nl80211_data *drv,
5098 struct phy_info_arg *results)
5099{
5100 struct nl_msg *msg;
5101
5102 msg = nlmsg_alloc();
5103 if (!msg)
5104 return -ENOMEM;
5105
9fb04070 5106 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG);
d8e66e80
JM		 5107 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results);
5108}
5109
5110
282d5590
JM		 5111static struct hostapd_hw_modes *
5112wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
5113{
a2e40bb6
FF		 5114 struct i802_bss *bss = priv;
5115 struct wpa_driver_nl80211_data *drv = bss->drv;
282d5590
JM		 5116 struct nl_msg *msg;
5117 struct phy_info_arg result = {
5118 .num_modes = num_modes,
5119 .modes = NULL,
5120 };
5121
5122 *num_modes = 0;
5123 *flags = 0;
5124
5125 msg = nlmsg_alloc();
5126 if (!msg)
5127 return NULL;
5128
9fb04070 5129 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY);
282d5590
JM		 5130
5131 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5132
d8e66e80
JM		 5133 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) {
5134 nl80211_set_ht40_flags(drv, &result);
282d5590 5135 return wpa_driver_nl80211_add_11b(result.modes, num_modes);
d8e66e80 5136 }
5883168a 5137 msg = NULL;
282d5590 5138 nla_put_failure:
5883168a 5139 nlmsg_free(msg);
282d5590
JM		 5140 return NULL;
5141}
5142
5143
a11241fa
JB		 5144static int wpa_driver_nl80211_send_mntr(struct wpa_driver_nl80211_data *drv,
5145 const void *data, size_t len,
5146 int encrypt, int noack)
2c2010ac
JM		 5147{
5148 __u8 rtap_hdr[] = {
5149 0x00, 0x00, /* radiotap version */
5150 0x0e, 0x00, /* radiotap length */
5151 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */
5152 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */
5153 0x00, /* padding */
5154 0x00, 0x00, /* RX and TX flags to indicate that */
5155 0x00, 0x00, /* this is the injected frame directly */
5156 };
5157 struct iovec iov[2] = {
5158 {
5159 .iov_base = &rtap_hdr,
5160 .iov_len = sizeof(rtap_hdr),
5161 },
5162 {
5163 .iov_base = (void *) data,
5164 .iov_len = len,
5165 }
5166 };
5167 struct msghdr msg = {
5168 .msg_name = NULL,
5169 .msg_namelen = 0,
5170 .msg_iov = iov,
5171 .msg_iovlen = 2,
5172 .msg_control = NULL,
5173 .msg_controllen = 0,
5174 .msg_flags = 0,
5175 };
ebbec8b2 5176 int res;
fab25336 5177 u16 txflags = 0;
2c2010ac
JM		 5178
5179 if (encrypt)
5180 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP;
5181
866af8b6
JM		 5182 if (drv->monitor_sock < 0) {
5183 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available "
5184 "for %s", __func__);
5185 return -1;
5186 }
5187
fab25336
HS		 5188 if (noack)
5189 txflags |= IEEE80211_RADIOTAP_F_TX_NOACK;
5190 *(le16 *) &rtap_hdr[12] = host_to_le16(txflags);
5191
ebbec8b2
JM		 5192 res = sendmsg(drv->monitor_sock, &msg, 0);
5193 if (res < 0) {
5194 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno));
5195 return -1;
5196 }
5197 return 0;
2c2010ac
JM		 5198}
5199
5200
a11241fa
JB		 5201static int wpa_driver_nl80211_send_frame(struct i802_bss *bss,
5202 const void *data, size_t len,
55231068
JM		 5203 int encrypt, int noack,
5204 unsigned int freq, int no_cck,
5205 int offchanok, unsigned int wait_time)
a11241fa
JB		 5206{
5207 struct wpa_driver_nl80211_data *drv = bss->drv;
5208 u64 cookie;
5209
55231068
JM		 5210 if (freq == 0)
5211 freq = bss->freq;
5212
a11241fa
JB		 5213 if (drv->use_monitor)
5214 return wpa_driver_nl80211_send_mntr(drv, data, len,
5215 encrypt, noack);
5216
55231068
JM		 5217 return nl80211_send_frame_cmd(bss, freq, wait_time, data, len,
5218 &cookie, no_cck, noack, offchanok);
a11241fa
JB		 5219}
5220
5221
55231068
JM		 5222static int wpa_driver_nl80211_send_mlme_freq(struct i802_bss *bss,
5223 const u8 *data,
5224 size_t data_len, int noack,
5225 unsigned int freq, int no_cck,
5226 int offchanok,
5227 unsigned int wait_time)
2c2010ac 5228{
a2e40bb6 5229 struct wpa_driver_nl80211_data *drv = bss->drv;
2c2010ac 5230 struct ieee80211_mgmt *mgmt;
7a47d567 5231 int encrypt = 1;
2c2010ac
JM		 5232 u16 fc;
5233
5234 mgmt = (struct ieee80211_mgmt *) data;
5235 fc = le_to_host16(mgmt->frame_control);
5236
b1f625e0 5237 if (is_sta_interface(drv->nlmode) &&
5582a5d1
JB		 5238 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
5239 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) {
5240 /*
5241 * The use of last_mgmt_freq is a bit of a hack,
5242 * but it works due to the single-threaded nature
5243 * of wpa_supplicant.
5244 */
55231068
JM		 5245 if (freq == 0)
5246 freq = drv->last_mgmt_freq;
5247 return nl80211_send_frame_cmd(bss, freq, 0,
88df0ef7
JB		 5248 data, data_len, NULL, 1, noack,
5249 1);
5582a5d1
JB		 5250 }
5251
61cbe2ff 5252 if (drv->device_ap_sme && is_ap_interface(drv->nlmode)) {
55231068
JM		 5253 if (freq == 0)
5254 freq = bss->freq;
b5671498
JM		 5255 return nl80211_send_frame_cmd(bss, freq,
5256 (int) freq == bss->freq ? 0 :
5257 wait_time,
d8d6b32e
DG		 5258 data, data_len,
5259 &drv->send_action_cookie,
55231068 5260 no_cck, noack, offchanok);
86957e62
JM		 5261 }
5262
2c2010ac
JM		 5263 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
5264 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) {
5265 /*
5266 * Only one of the authentication frame types is encrypted.
5267 * In order for static WEP encryption to work properly (i.e.,
5268 * to not encrypt the frame), we need to tell mac80211 about
5269 * the frames that must not be encrypted.
5270 */
5271 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
5272 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction);
7a47d567
JB		 5273 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3)
5274 encrypt = 0;
2c2010ac
JM		 5275 }
5276
a11241fa 5277 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt,
55231068
JM		 5278 noack, freq, no_cck, offchanok,
5279 wait_time);
5280}
5281
5282
5283static int wpa_driver_nl80211_send_mlme(void *priv, const u8 *data,
5284 size_t data_len, int noack)
5285{
5286 struct i802_bss *bss = priv;
5287 return wpa_driver_nl80211_send_mlme_freq(bss, data, data_len, noack,
5288 0, 0, 0, 0);
2c2010ac
JM		 5289}
5290
5291
31357268 5292static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble,
e5693c47
JM		 5293 int slot, int ht_opmode, int ap_isolate,
5294 int *basic_rates)
31357268
JM		 5295{
5296 struct wpa_driver_nl80211_data *drv = bss->drv;
5297 struct nl_msg *msg;
5298
5299 msg = nlmsg_alloc();
5300 if (!msg)
5301 return -ENOMEM;
5302
9fb04070 5303 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS);
31357268
JM		 5304
5305 if (cts >= 0)
5306 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts);
5307 if (preamble >= 0)
5308 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble);
5309 if (slot >= 0)
5310 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot);
5311 if (ht_opmode >= 0)
5312 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode);
d03e8d11
JM		 5313 if (ap_isolate >= 0)
5314 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, ap_isolate);
e5693c47
JM		 5315
5316 if (basic_rates) {
5317 u8 rates[NL80211_MAX_SUPP_RATES];
5318 u8 rates_len = 0;
5319 int i;
5320
5321 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0;
5322 i++)
5323 rates[rates_len++] = basic_rates[i] / 5;
5324
5325 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates);
5326 }
5327
31357268
JM		 5328 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
5329
5330 return send_and_recv_msgs(drv, msg, NULL, NULL);
5331 nla_put_failure:
5883168a 5332 nlmsg_free(msg);
31357268
JM		 5333 return -ENOBUFS;
5334}
5335
5336
19c3b566
JM		 5337static int wpa_driver_nl80211_set_ap(void *priv,
5338 struct wpa_driver_ap_params *params)
d2440ba0 5339{
a2e40bb6
FF		 5340 struct i802_bss *bss = priv;
5341 struct wpa_driver_nl80211_data *drv = bss->drv;
d2440ba0
JM		 5342 struct nl_msg *msg;
5343 u8 cmd = NL80211_CMD_NEW_BEACON;
5344 int ret;
b4fd6fab 5345 int beacon_set;
8b897f5a 5346 int ifindex = if_nametoindex(bss->ifname);
b11d1d64
JM		 5347 int num_suites;
5348 u32 suites[10];
5349 u32 ver;
b4fd6fab 5350
b4fd6fab 5351 beacon_set = bss->beacon_set;
d2440ba0
JM		 5352
5353 msg = nlmsg_alloc();
5354 if (!msg)
5355 return -ENOMEM;
5356
5357 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)",
b4fd6fab
JM		 5358 beacon_set);
5359 if (beacon_set)
d2440ba0
JM		 5360 cmd = NL80211_CMD_SET_BEACON;
5361
9fb04070 5362 nl80211_cmd(drv, msg, 0, cmd);
19c3b566
JM		 5363 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head);
5364 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail);
b4fd6fab 5365 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
19c3b566
JM		 5366 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int);
5367 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period);
ccb941e6
JM		 5368 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
5369 params->ssid);
5ed33546
AN		 5370 if (params->proberesp && params->proberesp_len)
5371 NLA_PUT(msg, NL80211_ATTR_PROBE_RESP, params->proberesp_len,
5372 params->proberesp);
97a7a0b5
JM		 5373 switch (params->hide_ssid) {
5374 case NO_SSID_HIDING:
5375 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
5376 NL80211_HIDDEN_SSID_NOT_IN_USE);
5377 break;
5378 case HIDDEN_SSID_ZERO_LEN:
5379 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
5380 NL80211_HIDDEN_SSID_ZERO_LEN);
5381 break;
5382 case HIDDEN_SSID_ZERO_CONTENTS:
5383 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
5384 NL80211_HIDDEN_SSID_ZERO_CONTENTS);
5385 break;
5386 }
b11d1d64
JM		 5387 if (params->privacy)
5388 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
5389 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) ==
5390 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) {
5391 /* Leave out the attribute */
5392 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED)
5393 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE,
5394 NL80211_AUTHTYPE_SHARED_KEY);
5395 else
5396 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE,
5397 NL80211_AUTHTYPE_OPEN_SYSTEM);
5398
5399 ver = 0;
5400 if (params->wpa_version & WPA_PROTO_WPA)
5401 ver |= NL80211_WPA_VERSION_1;
5402 if (params->wpa_version & WPA_PROTO_RSN)
5403 ver |= NL80211_WPA_VERSION_2;
5404 if (ver)
5405 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
5406
5407 num_suites = 0;
5408 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X)
5409 suites[num_suites++] = WLAN_AKM_SUITE_8021X;
5410 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK)
5411 suites[num_suites++] = WLAN_AKM_SUITE_PSK;
5412 if (num_suites) {
5413 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES,
5414 num_suites * sizeof(u32), suites);
5415 }
5416
9f12614b
JB		 5417 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X &&
5418 params->pairwise_ciphers & (WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40))
5419 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT);
5420
b11d1d64
JM		 5421 num_suites = 0;
5422 if (params->pairwise_ciphers & WPA_CIPHER_CCMP)
5423 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP;
5424 if (params->pairwise_ciphers & WPA_CIPHER_TKIP)
5425 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP;
5426 if (params->pairwise_ciphers & WPA_CIPHER_WEP104)
5427 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104;
5428 if (params->pairwise_ciphers & WPA_CIPHER_WEP40)
5429 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40;
5430 if (num_suites) {
5431 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE,
5432 num_suites * sizeof(u32), suites);
5433 }
5434
5435 switch (params->group_cipher) {
5436 case WPA_CIPHER_CCMP:
5437 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
5438 WLAN_CIPHER_SUITE_CCMP);
5439 break;
5440 case WPA_CIPHER_TKIP:
5441 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
5442 WLAN_CIPHER_SUITE_TKIP);
5443 break;
5444 case WPA_CIPHER_WEP104:
5445 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
5446 WLAN_CIPHER_SUITE_WEP104);
5447 break;
5448 case WPA_CIPHER_WEP40:
5449 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
5450 WLAN_CIPHER_SUITE_WEP40);
5451 break;
5452 }
d2440ba0 5453
fb91db56
JM		 5454 if (params->beacon_ies) {
5455 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies),
5456 wpabuf_head(params->beacon_ies));
5457 }
5458 if (params->proberesp_ies) {
5459 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP,
5460 wpabuf_len(params->proberesp_ies),
5461 wpabuf_head(params->proberesp_ies));
5462 }
5463 if (params->assocresp_ies) {
5464 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP,
5465 wpabuf_len(params->assocresp_ies),
5466 wpabuf_head(params->assocresp_ies));
5467 }
5468
a0133ee1
VT		 5469 if (drv->capa.flags & WPA_DRIVER_FLAGS_INACTIVITY_TIMER) {
5470 NLA_PUT_U16(msg, NL80211_ATTR_INACTIVITY_TIMEOUT,
5471 params->ap_max_inactivity);
5472 }
5473
d2440ba0
JM		 5474 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5475 if (ret) {
5476 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)",
5477 ret, strerror(-ret));
b4fd6fab 5478 } else {
b4fd6fab 5479 bss->beacon_set = 1;
31357268 5480 nl80211_set_bss(bss, params->cts_protect, params->preamble,
d03e8d11 5481 params->short_slot_time, params->ht_opmode,
e5693c47 5482 params->isolate, params->basic_rates);
b4fd6fab 5483 }
d2440ba0
JM		 5484 return ret;
5485 nla_put_failure:
5883168a 5486 nlmsg_free(msg);
d2440ba0
JM		 5487 return -ENOBUFS;
5488}
5489
5490
e4fb2167 5491static int wpa_driver_nl80211_set_freq(struct i802_bss *bss,
f019981a
JM		 5492 int freq, int ht_enabled,
5493 int sec_channel_offset)
1581b38b 5494{
e4fb2167 5495 struct wpa_driver_nl80211_data *drv = bss->drv;
1581b38b 5496 struct nl_msg *msg;
d2440ba0 5497 int ret;
1581b38b 5498
44dc872e
JM		 5499 wpa_printf(MSG_DEBUG, "nl80211: Set freq %d (ht_enabled=%d "
5500 "sec_channel_offset=%d)",
5501 freq, ht_enabled, sec_channel_offset);
1581b38b
JM		 5502 msg = nlmsg_alloc();
5503 if (!msg)
5504 return -1;
5505
9fb04070 5506 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
1581b38b
JM		 5507
5508 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
f019981a
JM		 5509 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
5510 if (ht_enabled) {
5511 switch (sec_channel_offset) {
5512 case -1:
5513 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
5514 NL80211_CHAN_HT40MINUS);
5515 break;
5516 case 1:
5517 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
5518 NL80211_CHAN_HT40PLUS);
5519 break;
5520 default:
5521 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
5522 NL80211_CHAN_HT20);
5523 break;
5524 }
5525 }
1581b38b 5526
d2440ba0 5527 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5883168a 5528 msg = NULL;
e4fb2167
JB		 5529 if (ret == 0) {
5530 bss->freq = freq;
1581b38b 5531 return 0;
e4fb2167 5532 }
f019981a
JM		 5533 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): "
5534 "%d (%s)", freq, ret, strerror(-ret));
1581b38b 5535nla_put_failure:
5883168a 5536 nlmsg_free(msg);
1581b38b
JM		 5537 return -1;
5538}
5539
0f4e8b4f 5540
95ab6063
AN		 5541static u32 sta_flags_nl80211(int flags)
5542{
5543 u32 f = 0;
5544
5545 if (flags & WPA_STA_AUTHORIZED)
5546 f |= BIT(NL80211_STA_FLAG_AUTHORIZED);
5547 if (flags & WPA_STA_WMM)
5548 f |= BIT(NL80211_STA_FLAG_WME);
5549 if (flags & WPA_STA_SHORT_PREAMBLE)
5550 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
5551 if (flags & WPA_STA_MFP)
5552 f |= BIT(NL80211_STA_FLAG_MFP);
45b722f1
AN		 5553 if (flags & WPA_STA_TDLS_PEER)
5554 f |= BIT(NL80211_STA_FLAG_TDLS_PEER);
95ab6063
AN		 5555
5556 return f;
5557}
5558
5559
62847751 5560static int wpa_driver_nl80211_sta_add(void *priv,
0f4e8b4f
JM		 5561 struct hostapd_sta_add_params *params)
5562{
a2e40bb6
FF		 5563 struct i802_bss *bss = priv;
5564 struct wpa_driver_nl80211_data *drv = bss->drv;
774bfa62 5565 struct nl_msg *msg, *wme = NULL;
95ab6063 5566 struct nl80211_sta_flag_update upd;
0f4e8b4f
JM		 5567 int ret = -ENOBUFS;
5568
45b722f1
AN		 5569 if ((params->flags & WPA_STA_TDLS_PEER) &&
5570 !(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
5571 return -EOPNOTSUPP;
5572
0f4e8b4f
JM		 5573 msg = nlmsg_alloc();
5574 if (!msg)
5575 return -ENOMEM;
5576
45b722f1
AN		 5577 nl80211_cmd(drv, msg, 0, params->set ? NL80211_CMD_SET_STATION :
5578 NL80211_CMD_NEW_STATION);
0f4e8b4f 5579
62847751 5580 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
0f4e8b4f 5581 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr);
0f4e8b4f
JM		 5582 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len,
5583 params->supp_rates);
45b722f1
AN		 5584 if (!params->set) {
5585 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid);
5586 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL,
5587 params->listen_interval);
5588 }
0f4e8b4f
JM		 5589 if (params->ht_capabilities) {
5590 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY,
fc4e2d95
JM		 5591 sizeof(*params->ht_capabilities),
5592 params->ht_capabilities);
0f4e8b4f 5593 }
0f4e8b4f 5594
95ab6063
AN		 5595 os_memset(&upd, 0, sizeof(upd));
5596 upd.mask = sta_flags_nl80211(params->flags);
5597 upd.set = upd.mask;
5598 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
5599
774bfa62
EP		 5600 if (params->flags & WPA_STA_WMM) {
5601 wme = nlmsg_alloc();
5602 if (!wme)
5603 goto nla_put_failure;
5604
5605 NLA_PUT_U8(wme, NL80211_STA_WME_UAPSD_QUEUES,
5d061637
JY		 5606 params->qosinfo & WMM_QOSINFO_STA_AC_MASK);
5607 NLA_PUT_U8(wme, NL80211_STA_WME_MAX_SP,
5608 (params->qosinfo > WMM_QOSINFO_STA_SP_SHIFT) &
5609 WMM_QOSINFO_STA_SP_MASK);
774bfa62 5610 nla_put_nested(msg, NL80211_ATTR_STA_WME, wme);
774bfa62
EP		 5611 }
5612
0f4e8b4f 5613 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5883168a 5614 msg = NULL;
0f4e8b4f 5615 if (ret)
45b722f1
AN		 5616 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_%s_STATION "
5617 "result: %d (%s)", params->set ? "SET" : "NEW", ret,
5618 strerror(-ret));
0f4e8b4f
JM		 5619 if (ret == -EEXIST)
5620 ret = 0;
5621 nla_put_failure:
5d061637 5622 nlmsg_free(wme);
5883168a 5623 nlmsg_free(msg);
0f4e8b4f
JM		 5624 return ret;
5625}
5626
5627
5628static int wpa_driver_nl80211_sta_remove(void *priv, const u8 *addr)
5629{
a2e40bb6
FF		 5630 struct i802_bss *bss = priv;
5631 struct wpa_driver_nl80211_data *drv = bss->drv;
0f4e8b4f
JM		 5632 struct nl_msg *msg;
5633 int ret;
5634
5635 msg = nlmsg_alloc();
5636 if (!msg)
5637 return -ENOMEM;
5638
9fb04070 5639 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION);
0f4e8b4f
JM		 5640
5641 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 5642 if_nametoindex(bss->ifname));
0f4e8b4f
JM		 5643 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5644
5645 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5646 if (ret == -ENOENT)
5647 return 0;
5648 return ret;
5649 nla_put_failure:
5883168a 5650 nlmsg_free(msg);
0f4e8b4f
JM		 5651 return -ENOBUFS;
5652}
5653
1581b38b 5654
0915d02c
JM		 5655static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
5656 int ifidx)
5657{
5658 struct nl_msg *msg;
5659
c6e8e8e4
JM		 5660 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx);
5661
2135f224
JM		 5662 /* stop listening for EAPOL on this interface */
5663 del_ifidx(drv, ifidx);
2135f224 5664
0915d02c
JM		 5665 msg = nlmsg_alloc();
5666 if (!msg)
5667 goto nla_put_failure;
5668
9fb04070 5669 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE);
0915d02c
JM		 5670 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx);
5671
5672 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
5673 return;
5883168a 5674 msg = NULL;
0915d02c 5675 nla_put_failure:
5883168a 5676 nlmsg_free(msg);
e748062b 5677 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx);
0915d02c
JM		 5678}
5679
5680
a1922f93
JM		 5681static const char * nl80211_iftype_str(enum nl80211_iftype mode)
5682{
5683 switch (mode) {
5684 case NL80211_IFTYPE_ADHOC:
5685 return "ADHOC";
5686 case NL80211_IFTYPE_STATION:
5687 return "STATION";
5688 case NL80211_IFTYPE_AP:
5689 return "AP";
5690 case NL80211_IFTYPE_MONITOR:
5691 return "MONITOR";
5692 case NL80211_IFTYPE_P2P_CLIENT:
5693 return "P2P_CLIENT";
5694 case NL80211_IFTYPE_P2P_GO:
5695 return "P2P_GO";
5696 default:
5697 return "unknown";
5698 }
5699}
5700
5701
a35187e7
KH		 5702static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv,
5703 const char *ifname,
5704 enum nl80211_iftype iftype,
fbbfcbac 5705 const u8 *addr, int wds)
0915d02c
JM		 5706{
5707 struct nl_msg *msg, *flags = NULL;
5708 int ifidx;
5709 int ret = -ENOBUFS;
5710
a1922f93
JM		 5711 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)",
5712 iftype, nl80211_iftype_str(iftype));
5713
0915d02c
JM		 5714 msg = nlmsg_alloc();
5715 if (!msg)
5716 return -1;
5717
9fb04070 5718 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE);
0915d02c
JM		 5719 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5720 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname);
5721 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype);
5722
5723 if (iftype == NL80211_IFTYPE_MONITOR) {
5724 int err;
5725
5726 flags = nlmsg_alloc();
5727 if (!flags)
5728 goto nla_put_failure;
5729
5730 NLA_PUT_FLAG(flags, NL80211_MNTR_FLAG_COOK_FRAMES);
5731
5732 err = nla_put_nested(msg, NL80211_ATTR_MNTR_FLAGS, flags);
5733
5734 nlmsg_free(flags);
5735
5736 if (err)
5737 goto nla_put_failure;
fbbfcbac
FF		 5738 } else if (wds) {
5739 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds);
0915d02c
JM		 5740 }
5741
5742 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5883168a 5743 msg = NULL;
0915d02c
JM		 5744 if (ret) {
5745 nla_put_failure:
5883168a 5746 nlmsg_free(msg);
a35187e7
KH		 5747 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)",
5748 ifname, ret, strerror(-ret));
0915d02c
JM		 5749 return ret;
5750 }
5751
5752 ifidx = if_nametoindex(ifname);
c6e8e8e4
JM		 5753 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d",
5754 ifname, ifidx);
0915d02c
JM		 5755
5756 if (ifidx <= 0)
5757 return -1;
5758
2135f224
JM		 5759 /* start listening for EAPOL on this interface */
5760 add_ifidx(drv, ifidx);
5761
7bfc47c3 5762 if (addr && iftype != NL80211_IFTYPE_MONITOR &&
c81eff1a 5763 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) {
41d931ee
JM		 5764 nl80211_remove_iface(drv, ifidx);
5765 return -1;
2135f224 5766 }
2135f224 5767
0915d02c
JM		 5768 return ifidx;
5769}
22a7c9d7
JM		 5770
5771
a35187e7
KH		 5772static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
5773 const char *ifname, enum nl80211_iftype iftype,
fbbfcbac 5774 const u8 *addr, int wds)
a35187e7
KH		 5775{
5776 int ret;
5777
fbbfcbac 5778 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds);
a35187e7 5779
ffbf1eaa 5780 /* if error occurred and interface exists already */
a35187e7
KH		 5781 if (ret == -ENFILE && if_nametoindex(ifname)) {
5782 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname);
5783
5784 /* Try to remove the interface that was already there. */
5785 nl80211_remove_iface(drv, if_nametoindex(ifname));
5786
5787 /* Try to create the interface again */
fbbfcbac
FF		 5788 ret = nl80211_create_iface_once(drv, ifname, iftype, addr,
5789 wds);
a35187e7
KH		 5790 }
5791
b3af99d2 5792 if (ret >= 0 && is_p2p_interface(iftype))
4e5cb1a3
JM		 5793 nl80211_disable_11b_rates(drv, ret, 1);
5794
a35187e7
KH		 5795 return ret;
5796}
0915d02c 5797
2135f224 5798
0915d02c
JM		 5799static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok)
5800{
5801 struct ieee80211_hdr *hdr;
f8b1f695
JM		 5802 u16 fc;
5803 union wpa_event_data event;
0915d02c
JM		 5804
5805 hdr = (struct ieee80211_hdr *) buf;
5806 fc = le_to_host16(hdr->frame_control);
5807
f8b1f695
JM		 5808 os_memset(&event, 0, sizeof(event));
5809 event.tx_status.type = WLAN_FC_GET_TYPE(fc);
5810 event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
5811 event.tx_status.dst = hdr->addr1;
5812 event.tx_status.data = buf;
5813 event.tx_status.data_len = len;
5814 event.tx_status.ack = ok;
5815 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event);
0915d02c
JM		 5816}
5817
5818
4b9841d3 5819static void from_unknown_sta(struct wpa_driver_nl80211_data *drv,
0d9fc3d8 5820 u8 *buf, size_t len)
0915d02c 5821{
9b90955e
JB		 5822 struct ieee80211_hdr *hdr = (void *)buf;
5823 u16 fc;
f8b1f695 5824 union wpa_event_data event;
9b90955e
JB		 5825
5826 if (len < sizeof(*hdr))
5827 return;
5828
5829 fc = le_to_host16(hdr->frame_control);
5830
f8b1f695 5831 os_memset(&event, 0, sizeof(event));
9b90955e
JB		 5832 event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len);
5833 event.rx_from_unknown.addr = hdr->addr2;
5834 event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) ==
5835 (WLAN_FC_FROMDS | WLAN_FC_TODS);
f8b1f695 5836 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event);
4b9841d3 5837}
0915d02c 5838
4b9841d3
JM		 5839
5840static void handle_frame(struct wpa_driver_nl80211_data *drv,
2a8b7416 5841 u8 *buf, size_t len, int datarate, int ssi_signal)
4b9841d3
JM		 5842{
5843 struct ieee80211_hdr *hdr;
f8b1f695
JM		 5844 u16 fc;
5845 union wpa_event_data event;
0915d02c
JM		 5846
5847 hdr = (struct ieee80211_hdr *) buf;
5848 fc = le_to_host16(hdr->frame_control);
0915d02c 5849
4b9841d3 5850 switch (WLAN_FC_GET_TYPE(fc)) {
0915d02c 5851 case WLAN_FC_TYPE_MGMT:
f8b1f695
JM		 5852 os_memset(&event, 0, sizeof(event));
5853 event.rx_mgmt.frame = buf;
5854 event.rx_mgmt.frame_len = len;
2a8b7416
JM		 5855 event.rx_mgmt.datarate = datarate;
5856 event.rx_mgmt.ssi_signal = ssi_signal;
f8b1f695 5857 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
0915d02c
JM		 5858 break;
5859 case WLAN_FC_TYPE_CTRL:
5860 /* can only get here with PS-Poll frames */
5861 wpa_printf(MSG_DEBUG, "CTRL");
0d9fc3d8 5862 from_unknown_sta(drv, buf, len);
0915d02c
JM		 5863 break;
5864 case WLAN_FC_TYPE_DATA:
0d9fc3d8 5865 from_unknown_sta(drv, buf, len);
0915d02c
JM		 5866 break;
5867 }
5868}
5869
5870
5871static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx)
5872{
5873 struct wpa_driver_nl80211_data *drv = eloop_ctx;
5874 int len;
5875 unsigned char buf[3000];
5876 struct ieee80211_radiotap_iterator iter;
5877 int ret;
2a8b7416 5878 int datarate = 0, ssi_signal = 0;
4b9841d3 5879 int injected = 0, failed = 0, rxflags = 0;
0915d02c
JM		 5880
5881 len = recv(sock, buf, sizeof(buf), 0);
5882 if (len < 0) {
5883 perror("recv");
5884 return;
5885 }
5886
5887 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) {
5888 printf("received invalid radiotap frame\n");
5889 return;
5890 }
5891
0915d02c
JM		 5892 while (1) {
5893 ret = ieee80211_radiotap_iterator_next(&iter);
5894 if (ret == -ENOENT)
5895 break;
5896 if (ret) {
5897 printf("received invalid radiotap frame (%d)\n", ret);
5898 return;
5899 }
5900 switch (iter.this_arg_index) {
5901 case IEEE80211_RADIOTAP_FLAGS:
5902 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS)
5903 len -= 4;
5904 break;
5905 case IEEE80211_RADIOTAP_RX_FLAGS:
5906 rxflags = 1;
5907 break;
5908 case IEEE80211_RADIOTAP_TX_FLAGS:
5909 injected = 1;
5910 failed = le_to_host16((*(uint16_t *) iter.this_arg)) &
5911 IEEE80211_RADIOTAP_F_TX_FAIL;
5912 break;
5913 case IEEE80211_RADIOTAP_DATA_RETRIES:
5914 break;
5915 case IEEE80211_RADIOTAP_CHANNEL:
2a8b7416 5916 /* TODO: convert from freq/flags to channel number */
0915d02c
JM		 5917 break;
5918 case IEEE80211_RADIOTAP_RATE:
2a8b7416 5919 datarate = *iter.this_arg * 5;
0915d02c 5920 break;
baf513d6
JB		 5921 case IEEE80211_RADIOTAP_DBM_ANTSIGNAL:
5922 ssi_signal = (s8) *iter.this_arg;
0915d02c
JM		 5923 break;
5924 }
5925 }
5926
5927 if (rxflags && injected)
5928 return;
5929
5930 if (!injected)
4b9841d3 5931 handle_frame(drv, buf + iter.max_length,
2a8b7416 5932 len - iter.max_length, datarate, ssi_signal);
0915d02c 5933 else
4b9841d3
JM		 5934 handle_tx_callback(drv->ctx, buf + iter.max_length,
5935 len - iter.max_length, !failed);
0915d02c
JM		 5936}
5937
5938
5939/*
5940 * we post-process the filter code later and rewrite
5941 * this to the offset to the last instruction
5942 */
5943#define PASS 0xFF
5944#define FAIL 0xFE
5945
5946static struct sock_filter msock_filter_insns[] = {
5947 /*
5948 * do a little-endian load of the radiotap length field
5949 */
5950 /* load lower byte into A */
5951 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2),
5952 /* put it into X (== index register) */
5953 BPF_STMT(BPF_MISC| BPF_TAX, 0),
5954 /* load upper byte into A */
5955 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3),
5956 /* left-shift it by 8 */
5957 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8),
5958 /* or with X */
5959 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0),
5960 /* put result into X */
5961 BPF_STMT(BPF_MISC| BPF_TAX, 0),
5962
5963 /*
5964 * Allow management frames through, this also gives us those
5965 * management frames that we sent ourselves with status
5966 */
5967 /* load the lower byte of the IEEE 802.11 frame control field */
5968 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
5969 /* mask off frame type and version */
5970 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF),
5971 /* accept frame if it's both 0, fall through otherwise */
5972 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0),
5973
5974 /*
5975 * TODO: add a bit to radiotap RX flags that indicates
5976 * that the sending station is not associated, then
5977 * add a filter here that filters on our DA and that flag
5978 * to allow us to deauth frames to that bad station.
5979 *
65ae1afd 5980 * For now allow all To DS data frames through.
0915d02c 5981 */
65ae1afd
HS		 5982 /* load the IEEE 802.11 frame control field */
5983 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0),
5984 /* mask off frame type, version and DS status */
5985 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03),
5986 /* accept frame if version 0, type 2 and To DS, fall through otherwise
5987 */
5988 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0),
0915d02c
JM		 5989
5990#if 0
5991 /*
fbbfcbac 5992 * drop non-data frames
0915d02c
JM		 5993 */
5994 /* load the lower byte of the frame control field */
5995 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
5996 /* mask off QoS bit */
5997 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c),
5998 /* drop non-data frames */
5999 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL),
fbbfcbac 6000#endif
0915d02c 6001 /* load the upper byte of the frame control field */
fbbfcbac 6002 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1),
0915d02c
JM		 6003 /* mask off toDS/fromDS */
6004 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03),
fbbfcbac
FF		 6005 /* accept WDS frames */
6006 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0),
0915d02c
JM		 6007
6008 /*
6009 * add header length to index
6010 */
6011 /* load the lower byte of the frame control field */
6012 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
6013 /* mask off QoS bit */
6014 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80),
6015 /* right shift it by 6 to give 0 or 2 */
6016 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6),
6017 /* add data frame header length */
6018 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24),
6019 /* add index, was start of 802.11 header */
6020 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0),
6021 /* move to index, now start of LL header */
6022 BPF_STMT(BPF_MISC | BPF_TAX, 0),
6023
6024 /*
6025 * Accept empty data frames, we use those for
6026 * polling activity.
6027 */
6028 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0),
6029 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0),
6030
6031 /*
6032 * Accept EAPOL frames
6033 */
6034 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0),
6035 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL),
6036 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4),
6037 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL),
6038
6039 /* keep these last two statements or change the code below */
6040 /* return 0 == "DROP" */
6041 BPF_STMT(BPF_RET | BPF_K, 0),
6042 /* return ~0 == "keep all" */
6043 BPF_STMT(BPF_RET | BPF_K, ~0),
6044};
6045
6046static struct sock_fprog msock_filter = {
6047 .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]),
6048 .filter = msock_filter_insns,
6049};
6050
6051
6052static int add_monitor_filter(int s)
6053{
6054 int idx;
6055
6056 /* rewrite all PASS/FAIL jump offsets */
6057 for (idx = 0; idx < msock_filter.len; idx++) {
6058 struct sock_filter *insn = &msock_filter_insns[idx];
6059
6060 if (BPF_CLASS(insn->code) == BPF_JMP) {
6061 if (insn->code == (BPF_JMP|BPF_JA)) {
6062 if (insn->k == PASS)
6063 insn->k = msock_filter.len - idx - 2;
6064 else if (insn->k == FAIL)
6065 insn->k = msock_filter.len - idx - 3;
6066 }
6067
6068 if (insn->jt == PASS)
6069 insn->jt = msock_filter.len - idx - 2;
6070 else if (insn->jt == FAIL)
6071 insn->jt = msock_filter.len - idx - 3;
6072
6073 if (insn->jf == PASS)
6074 insn->jf = msock_filter.len - idx - 2;
6075 else if (insn->jf == FAIL)
6076 insn->jf = msock_filter.len - idx - 3;
6077 }
6078 }
6079
6080 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER,
6081 &msock_filter, sizeof(msock_filter))) {
6082 perror("SO_ATTACH_FILTER");
6083 return -1;
6084 }
6085
6086 return 0;
6087}
6088
6089
460456f8
JM		 6090static void nl80211_remove_monitor_interface(
6091 struct wpa_driver_nl80211_data *drv)
6092{
3fd1cefb
JB		 6093 drv->monitor_refcount--;
6094 if (drv->monitor_refcount > 0)
6095 return;
6096
460456f8
JM		 6097 if (drv->monitor_ifidx >= 0) {
6098 nl80211_remove_iface(drv, drv->monitor_ifidx);
6099 drv->monitor_ifidx = -1;
6100 }
504e905c
JM		 6101 if (drv->monitor_sock >= 0) {
6102 eloop_unregister_read_sock(drv->monitor_sock);
6103 close(drv->monitor_sock);
6104 drv->monitor_sock = -1;
6105 }
460456f8
JM		 6106}
6107
6108
0915d02c
JM		 6109static int
6110nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv)
6111{
6112 char buf[IFNAMSIZ];
6113 struct sockaddr_ll ll;
6114 int optval;
6115 socklen_t optlen;
0915d02c 6116
3fd1cefb
JB		 6117 if (drv->monitor_ifidx >= 0) {
6118 drv->monitor_refcount++;
6119 return 0;
6120 }
6121
6758b167
JJ		 6122 if (os_strncmp(drv->first_bss.ifname, "p2p-", 4) == 0) {
6123 /*
6124 * P2P interface name is of the format p2p-%s-%d. For monitor
6125 * interface name corresponding to P2P GO, replace "p2p-" with
6126 * "mon-" to retain the same interface name length and to
6127 * indicate that it is a monitor interface.
6128 */
6129 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss.ifname + 4);
6130 } else {
6131 /* Non-P2P interface with AP functionality. */
6132 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss.ifname);
6133 }
6134
0915d02c
JM		 6135 buf[IFNAMSIZ - 1] = '\0';
6136
6137 drv->monitor_ifidx =
fbbfcbac
FF		 6138 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL,
6139 0);
0915d02c 6140
866af8b6 6141 if (drv->monitor_ifidx == -EOPNOTSUPP) {
61cbe2ff
JB		 6142 /*
6143 * This is backward compatibility for a few versions of
6144 * the kernel only that didn't advertise the right
6145 * attributes for the only driver that then supported
6146 * AP mode w/o monitor -- ath6kl.
6147 */
866af8b6
JM		 6148 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support "
6149 "monitor interface type - try to run without it");
61cbe2ff 6150 drv->device_ap_sme = 1;
866af8b6
JM		 6151 }
6152
0915d02c
JM		 6153 if (drv->monitor_ifidx < 0)
6154 return -1;
6155
c81eff1a 6156 if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1))
0915d02c 6157 goto error;
0915d02c
JM		 6158
6159 memset(&ll, 0, sizeof(ll));
6160 ll.sll_family = AF_PACKET;
6161 ll.sll_ifindex = drv->monitor_ifidx;
6162 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
6163 if (drv->monitor_sock < 0) {
6164 perror("socket[PF_PACKET,SOCK_RAW]");
6165 goto error;
6166 }
6167
6168 if (add_monitor_filter(drv->monitor_sock)) {
6169 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor "
6170 "interface; do filtering in user space");
6171 /* This works, but will cost in performance. */
6172 }
6173
2135f224 6174 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) {
0915d02c
JM		 6175 perror("monitor socket bind");
6176 goto error;
6177 }
6178
6179 optlen = sizeof(optval);
6180 optval = 20;
6181 if (setsockopt
6182 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) {
6183 perror("Failed to set socket priority");
6184 goto error;
6185 }
6186
6187 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read,
6188 drv, NULL)) {
6189 printf("Could not register monitor read socket\n");
6190 goto error;
6191 }
6192
6193 return 0;
6194 error:
460456f8 6195 nl80211_remove_monitor_interface(drv);
0915d02c
JM		 6196 return -1;
6197}
6198
db149ac9 6199
3fd1cefb
JB		 6200static int nl80211_setup_ap(struct i802_bss *bss)
6201{
6202 struct wpa_driver_nl80211_data *drv = bss->drv;
6203
36488c05
JM		 6204 wpa_printf(MSG_DEBUG, "nl80211: Setup AP - device_ap_sme=%d "
6205 "use_monitor=%d", drv->device_ap_sme, drv->use_monitor);
6206
a11241fa
JB		 6207 /*
6208 * Disable Probe Request reporting unless we need it in this way for
6209 * devices that include the AP SME, in the other case (unless using
6210 * monitor iface) we'll get it through the nl_mgmt socket instead.
6211 */
6212 if (!drv->device_ap_sme)
6213 wpa_driver_nl80211_probe_req_report(bss, 0);
6214
6215 if (!drv->device_ap_sme && !drv->use_monitor)
6216 if (nl80211_mgmt_subscribe_ap(bss))
6217 return -1;
6218
a6cc0602
JM		 6219 if (drv->device_ap_sme && !drv->use_monitor)
6220 if (nl80211_mgmt_subscribe_ap_dev_sme(bss))
6221 return -1;
6222
a11241fa 6223 if (!drv->device_ap_sme && drv->use_monitor &&
3fd1cefb
JB		 6224 nl80211_create_monitor_interface(drv) &&
6225 !drv->device_ap_sme)
6226 return -1;
6227
6228 if (drv->device_ap_sme &&
6229 wpa_driver_nl80211_probe_req_report(bss, 1) < 0) {
6230 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable "
6231 "Probe Request frame reporting in AP mode");
6232 /* Try to survive without this */
6233 }
6234
6235 return 0;
6236}
6237
6238
6239static void nl80211_teardown_ap(struct i802_bss *bss)
6240{
6241 struct wpa_driver_nl80211_data *drv = bss->drv;
6242
a6cc0602 6243 if (drv->device_ap_sme) {
3fd1cefb 6244 wpa_driver_nl80211_probe_req_report(bss, 0);
a6cc0602
JM		 6245 if (!drv->use_monitor)
6246 nl80211_mgmt_unsubscribe(bss, "AP teardown (dev SME)");
6247 } else if (drv->use_monitor)
3fd1cefb 6248 nl80211_remove_monitor_interface(drv);
a11241fa 6249 else
36488c05 6250 nl80211_mgmt_unsubscribe(bss, "AP teardown");
a11241fa 6251
3fd1cefb
JB		 6252 bss->beacon_set = 0;
6253}
6254
6255
f10bfc9a
JM		 6256static int nl80211_send_eapol_data(struct i802_bss *bss,
6257 const u8 *addr, const u8 *data,
d12dab4c 6258 size_t data_len)
f10bfc9a 6259{
d12dab4c
JB		 6260 struct sockaddr_ll ll;
6261 int ret;
6262
6263 if (bss->drv->eapol_tx_sock < 0) {
6264 wpa_printf(MSG_DEBUG, "nl80211: No socket to send EAPOL");
f10bfc9a
JM		 6265 return -1;
6266 }
6267
d12dab4c
JB		 6268 os_memset(&ll, 0, sizeof(ll));
6269 ll.sll_family = AF_PACKET;
6270 ll.sll_ifindex = bss->ifindex;
6271 ll.sll_protocol = htons(ETH_P_PAE);
6272 ll.sll_halen = ETH_ALEN;
6273 os_memcpy(ll.sll_addr, addr, ETH_ALEN);
6274 ret = sendto(bss->drv->eapol_tx_sock, data, data_len, 0,
6275 (struct sockaddr *) &ll, sizeof(ll));
6276 if (ret < 0)
6277 wpa_printf(MSG_ERROR, "nl80211: EAPOL TX: %s",
6278 strerror(errno));
6279
6280 return ret;
f10bfc9a 6281}
5fb1a232 6282
f10bfc9a 6283
db149ac9
JM		 6284static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
6285
6286static int wpa_driver_nl80211_hapd_send_eapol(
6287 void *priv, const u8 *addr, const u8 *data,
4378fc14 6288 size_t data_len, int encrypt, const u8 *own_addr, u32 flags)
db149ac9 6289{
a2e40bb6
FF		 6290 struct i802_bss *bss = priv;
6291 struct wpa_driver_nl80211_data *drv = bss->drv;
db149ac9
JM		 6292 struct ieee80211_hdr *hdr;
6293 size_t len;
6294 u8 *pos;
6295 int res;
4378fc14 6296 int qos = flags & WPA_STA_WMM;
db149ac9 6297
a11241fa 6298 if (drv->device_ap_sme || !drv->use_monitor)
d12dab4c 6299 return nl80211_send_eapol_data(bss, addr, data, data_len);
f10bfc9a 6300
db149ac9
JM		 6301 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 +
6302 data_len;
6303 hdr = os_zalloc(len);
6304 if (hdr == NULL) {
6305 printf("malloc() failed for i802_send_data(len=%lu)\n",
6306 (unsigned long) len);
6307 return -1;
6308 }
6309
6310 hdr->frame_control =
6311 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA);
6312 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS);
6313 if (encrypt)
6314 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP);
db149ac9
JM		 6315 if (qos) {
6316 hdr->frame_control |=
6317 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4);
6318 }
db149ac9
JM		 6319
6320 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN);
6321 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
6322 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
6323 pos = (u8 *) (hdr + 1);
6324
db149ac9
JM		 6325 if (qos) {
6326 /* add an empty QoS header if needed */
6327 pos[0] = 0;
6328 pos[1] = 0;
6329 pos += 2;
6330 }
db149ac9
JM		 6331
6332 memcpy(pos, rfc1042_header, sizeof(rfc1042_header));
6333 pos += sizeof(rfc1042_header);
6334 WPA_PUT_BE16(pos, ETH_P_PAE);
6335 pos += 2;
6336 memcpy(pos, data, data_len);
6337
55231068
JM		 6338 res = wpa_driver_nl80211_send_frame(bss, (u8 *) hdr, len, encrypt, 0,
6339 0, 0, 0, 0);
db149ac9
JM		 6340 if (res < 0) {
6341 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - "
6342 "failed: %d (%s)",
6343 (unsigned long) len, errno, strerror(errno));
6344 }
7bf12757 6345 os_free(hdr);
db149ac9
JM		 6346
6347 return res;
6348}
6349
a8d6ffa4 6350
3234cba4
JM		 6351static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr,
6352 int total_flags,
4c32757d 6353 int flags_or, int flags_and)
a8d6ffa4 6354{
a2e40bb6
FF		 6355 struct i802_bss *bss = priv;
6356 struct wpa_driver_nl80211_data *drv = bss->drv;
a8d6ffa4 6357 struct nl_msg *msg, *flags = NULL;
7e76ee9c 6358 struct nl80211_sta_flag_update upd;
a8d6ffa4
JM		 6359
6360 msg = nlmsg_alloc();
6361 if (!msg)
6362 return -ENOMEM;
6363
6364 flags = nlmsg_alloc();
6365 if (!flags) {
6366 nlmsg_free(msg);
6367 return -ENOMEM;
6368 }
6369
9fb04070 6370 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
a8d6ffa4
JM		 6371
6372 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
3234cba4 6373 if_nametoindex(bss->ifname));
a8d6ffa4
JM		 6374 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6375
7e76ee9c
JM		 6376 /*
6377 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This
6378 * can be removed eventually.
6379 */
0de39516 6380 if (total_flags & WPA_STA_AUTHORIZED)
a8d6ffa4
JM		 6381 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_AUTHORIZED);
6382
0de39516 6383 if (total_flags & WPA_STA_WMM)
a8d6ffa4
JM		 6384 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_WME);
6385
0de39516 6386 if (total_flags & WPA_STA_SHORT_PREAMBLE)
a8d6ffa4
JM		 6387 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_SHORT_PREAMBLE);
6388
0de39516 6389 if (total_flags & WPA_STA_MFP)
a8d6ffa4
JM		 6390 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_MFP);
6391
45b722f1
AN		 6392 if (total_flags & WPA_STA_TDLS_PEER)
6393 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_TDLS_PEER);
6394
a8d6ffa4
JM		 6395 if (nla_put_nested(msg, NL80211_ATTR_STA_FLAGS, flags))
6396 goto nla_put_failure;
6397
7e76ee9c
JM		 6398 os_memset(&upd, 0, sizeof(upd));
6399 upd.mask = sta_flags_nl80211(flags_or | ~flags_and);
6400 upd.set = sta_flags_nl80211(flags_or);
6401 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
6402
a8d6ffa4
JM		 6403 nlmsg_free(flags);
6404
6405 return send_and_recv_msgs(drv, msg, NULL, NULL);
6406 nla_put_failure:
5883168a 6407 nlmsg_free(msg);
a8d6ffa4
JM		 6408 nlmsg_free(flags);
6409 return -ENOBUFS;
6410}
6411
0915d02c 6412
1581b38b
JM		 6413static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv,
6414 struct wpa_driver_associate_params *params)
6415{
b1f625e0
EP		 6416 enum nl80211_iftype nlmode;
6417
6418 if (params->p2p) {
046b26a2
JM		 6419 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P "
6420 "group (GO)");
b1f625e0
EP		 6421 nlmode = NL80211_IFTYPE_P2P_GO;
6422 } else
6423 nlmode = NL80211_IFTYPE_AP;
6424
6425 if (wpa_driver_nl80211_set_mode(&drv->first_bss, nlmode) ||
e4fb2167 6426 wpa_driver_nl80211_set_freq(&drv->first_bss, params->freq, 0, 0)) {
460456f8 6427 nl80211_remove_monitor_interface(drv);
1581b38b 6428 return -1;
0915d02c 6429 }
1581b38b 6430
1581b38b
JM		 6431 return 0;
6432}
1581b38b
JM		 6433
6434
5cc4d64b
JM		 6435static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv)
6436{
6437 struct nl_msg *msg;
6438 int ret = -1;
6439
6440 msg = nlmsg_alloc();
6441 if (!msg)
6442 return -1;
6443
9fb04070 6444 nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS);
5cc4d64b
JM		 6445 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6446 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6447 msg = NULL;
6448 if (ret) {
6449 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d "
6450 "(%s)", ret, strerror(-ret));
6451 goto nla_put_failure;
6452 }
6453
6454 ret = 0;
6455 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully");
6456
6457nla_put_failure:
6458 nlmsg_free(msg);
6459 return ret;
6460}
6461
6462
6463static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv,
6464 struct wpa_driver_associate_params *params)
6465{
6466 struct nl_msg *msg;
6467 int ret = -1;
6468 int count = 0;
6469
6470 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex);
6471
b1f625e0
EP		 6472 if (wpa_driver_nl80211_set_mode(&drv->first_bss,
6473 NL80211_IFTYPE_ADHOC)) {
5cc4d64b
JM		 6474 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into "
6475 "IBSS mode");
6476 return -1;
6477 }
6478
6479retry:
6480 msg = nlmsg_alloc();
6481 if (!msg)
6482 return -1;
6483
9fb04070 6484 nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS);
5cc4d64b
JM		 6485 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6486
6487 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid))
6488 goto nla_put_failure;
6489
6490 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
6491 params->ssid, params->ssid_len);
6492 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
6493 params->ssid);
6494 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
6495 drv->ssid_len = params->ssid_len;
6496
6497 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
6498 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
6499
6500 ret = nl80211_set_conn_keys(params, msg);
6501 if (ret)
6502 goto nla_put_failure;
6503
913e3cf7
NC		 6504 if (params->bssid && params->fixed_bssid) {
6505 wpa_printf(MSG_DEBUG, " * BSSID=" MACSTR,
6506 MAC2STR(params->bssid));
6507 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
6508 }
6509
e640888c
AQ		 6510 if (params->key_mgmt_suite == KEY_MGMT_802_1X ||
6511 params->key_mgmt_suite == KEY_MGMT_PSK ||
6512 params->key_mgmt_suite == KEY_MGMT_802_1X_SHA256 ||
6513 params->key_mgmt_suite == KEY_MGMT_PSK_SHA256) {
6514 wpa_printf(MSG_DEBUG, " * control port");
6515 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
6516 }
6517
a95795ad
JM		 6518 if (params->wpa_ie) {
6519 wpa_hexdump(MSG_DEBUG,
6520 " * Extra IEs for Beacon/Probe Response frames",
6521 params->wpa_ie, params->wpa_ie_len);
6522 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
6523 params->wpa_ie);
6524 }
6525
5cc4d64b
JM		 6526 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6527 msg = NULL;
6528 if (ret) {
6529 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)",
6530 ret, strerror(-ret));
6531 count++;
6532 if (ret == -EALREADY && count == 1) {
6533 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after "
6534 "forced leave");
6535 nl80211_leave_ibss(drv);
6536 nlmsg_free(msg);
6537 goto retry;
6538 }
6539
6540 goto nla_put_failure;
6541 }
6542 ret = 0;
6543 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully");
6544
6545nla_put_failure:
6546 nlmsg_free(msg);
6547 return ret;
6548}
6549
6550
20f5a4c2
JM		 6551static unsigned int nl80211_get_assoc_bssid(struct wpa_driver_nl80211_data *drv,
6552 u8 *bssid)
6553{
6554 struct nl_msg *msg;
6555 int ret;
6556 struct nl80211_bss_info_arg arg;
6557
6558 os_memset(&arg, 0, sizeof(arg));
6559 msg = nlmsg_alloc();
6560 if (!msg)
6561 goto nla_put_failure;
6562
9fb04070 6563 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
20f5a4c2
JM		 6564 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6565
6566 arg.drv = drv;
6567 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
6568 msg = NULL;
6569 if (ret == 0) {
6570 if (is_zero_ether_addr(arg.assoc_bssid))
6571 return -ENOTCONN;
6572 os_memcpy(bssid, arg.assoc_bssid, ETH_ALEN);
6573 return 0;
6574 }
6575 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
6576 "(%s)", ret, strerror(-ret));
6577nla_put_failure:
6578 nlmsg_free(msg);
6579 return drv->assoc_freq;
6580}
6581
6582
6583static int nl80211_disconnect(struct wpa_driver_nl80211_data *drv,
6584 const u8 *bssid)
6585{
6586 u8 addr[ETH_ALEN];
6587
6588 if (bssid == NULL) {
6589 int res = nl80211_get_assoc_bssid(drv, addr);
6590 if (res)
6591 return res;
6592 bssid = addr;
6593 }
6594
6595 return wpa_driver_nl80211_disconnect(drv, bssid,
6596 WLAN_REASON_PREV_AUTH_NOT_VALID);
6597}
6598
6599
cfaab580
ZY		 6600static int wpa_driver_nl80211_connect(
6601 struct wpa_driver_nl80211_data *drv,
6602 struct wpa_driver_associate_params *params)
6603{
6604 struct nl_msg *msg;
6605 enum nl80211_auth_type type;
6606 int ret = 0;
3f360238 6607 int algs;
cfaab580
ZY		 6608
6609 msg = nlmsg_alloc();
6610 if (!msg)
6611 return -1;
6612
6613 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex);
9fb04070 6614 nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT);
cfaab580
ZY		 6615
6616 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6617 if (params->bssid) {
6618 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
6619 MAC2STR(params->bssid));
6620 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
6621 }
6622 if (params->freq) {
6623 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
6624 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
6625 }
1f6c0ab8
BS		 6626 if (params->bg_scan_period >= 0) {
6627 wpa_printf(MSG_DEBUG, " * bg scan period=%d",
6628 params->bg_scan_period);
6629 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD,
6630 params->bg_scan_period);
6631 }
cfaab580
ZY		 6632 if (params->ssid) {
6633 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
6634 params->ssid, params->ssid_len);
6635 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
6636 params->ssid);
6637 if (params->ssid_len > sizeof(drv->ssid))
6638 goto nla_put_failure;
6639 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
6640 drv->ssid_len = params->ssid_len;
6641 }
6642 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
6643 if (params->wpa_ie)
6644 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
6645 params->wpa_ie);
6646
3f360238
JM		 6647 algs = 0;
6648 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
6649 algs++;
6650 if (params->auth_alg & WPA_AUTH_ALG_SHARED)
6651 algs++;
6652 if (params->auth_alg & WPA_AUTH_ALG_LEAP)
6653 algs++;
6654 if (algs > 1) {
6655 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic "
6656 "selection");
6657 goto skip_auth_type;
6658 }
6659
abd9fafa 6660 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
cfaab580 6661 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
abd9fafa 6662 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
cfaab580 6663 type = NL80211_AUTHTYPE_SHARED_KEY;
abd9fafa 6664 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
cfaab580 6665 type = NL80211_AUTHTYPE_NETWORK_EAP;
abd9fafa 6666 else if (params->auth_alg & WPA_AUTH_ALG_FT)
cfaab580
ZY		 6667 type = NL80211_AUTHTYPE_FT;
6668 else
6669 goto nla_put_failure;
6670
6671 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
6672 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
6673
3f360238 6674skip_auth_type:
64fa840a
JM		 6675 if (params->wpa_proto) {
6676 enum nl80211_wpa_versions ver = 0;
cfaab580 6677
64fa840a
JM		 6678 if (params->wpa_proto & WPA_PROTO_WPA)
6679 ver |= NL80211_WPA_VERSION_1;
6680 if (params->wpa_proto & WPA_PROTO_RSN)
6681 ver |= NL80211_WPA_VERSION_2;
cfaab580 6682
64fa840a 6683 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver);
cfaab580
ZY		 6684 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
6685 }
6686
6687 if (params->pairwise_suite != CIPHER_NONE) {
c1bb3e0a 6688 int cipher;
cfaab580
ZY		 6689
6690 switch (params->pairwise_suite) {
6691 case CIPHER_WEP40:
6692 cipher = WLAN_CIPHER_SUITE_WEP40;
6693 break;
6694 case CIPHER_WEP104:
6695 cipher = WLAN_CIPHER_SUITE_WEP104;
6696 break;
6697 case CIPHER_CCMP:
6698 cipher = WLAN_CIPHER_SUITE_CCMP;
6699 break;
6700 case CIPHER_TKIP:
6701 default:
6702 cipher = WLAN_CIPHER_SUITE_TKIP;
6703 break;
6704 }
6705 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
6706 }
6707
6708 if (params->group_suite != CIPHER_NONE) {
c1bb3e0a 6709 int cipher;
cfaab580
ZY		 6710
6711 switch (params->group_suite) {
6712 case CIPHER_WEP40:
6713 cipher = WLAN_CIPHER_SUITE_WEP40;
6714 break;
6715 case CIPHER_WEP104:
6716 cipher = WLAN_CIPHER_SUITE_WEP104;
6717 break;
6718 case CIPHER_CCMP:
6719 cipher = WLAN_CIPHER_SUITE_CCMP;
6720 break;
6721 case CIPHER_TKIP:
6722 default:
6723 cipher = WLAN_CIPHER_SUITE_TKIP;
6724 break;
6725 }
6726 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
6727 }
6728
6729 if (params->key_mgmt_suite == KEY_MGMT_802_1X ||
6730 params->key_mgmt_suite == KEY_MGMT_PSK) {
6731 int mgmt = WLAN_AKM_SUITE_PSK;
6732
6733 switch (params->key_mgmt_suite) {
6734 case KEY_MGMT_802_1X:
6735 mgmt = WLAN_AKM_SUITE_8021X;
6736 break;
6737 case KEY_MGMT_PSK:
6738 default:
6739 mgmt = WLAN_AKM_SUITE_PSK;
6740 break;
6741 }
6742 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt);
6743 }
6744
80e8a5ee
BG		 6745 if (params->disable_ht)
6746 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT);
6747
6748 if (params->htcaps && params->htcaps_mask) {
6749 int sz = sizeof(struct ieee80211_ht_capabilities);
6750 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps);
6751 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz,
6752 params->htcaps_mask);
6753 }
6754
cfaab580
ZY		 6755 ret = nl80211_set_conn_keys(params, msg);
6756 if (ret)
6757 goto nla_put_failure;
6758
6759 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6760 msg = NULL;
6761 if (ret) {
6762 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d "
6763 "(%s)", ret, strerror(-ret));
20f5a4c2
JM		 6764 /*
6765 * cfg80211 does not currently accept new connection if we are
6766 * already connected. As a workaround, force disconnection and
6767 * try again once the driver indicates it completed
6768 * disconnection.
6769 */
6770 if (ret == -EALREADY)
6771 nl80211_disconnect(drv, params->bssid);
cfaab580
ZY		 6772 goto nla_put_failure;
6773 }
6774 ret = 0;
6775 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully");
6776
6777nla_put_failure:
6778 nlmsg_free(msg);
6779 return ret;
6780
6781}
6782
6783
c2a04078
JM		 6784static int wpa_driver_nl80211_associate(
6785 void *priv, struct wpa_driver_associate_params *params)
6786{
a2e40bb6
FF		 6787 struct i802_bss *bss = priv;
6788 struct wpa_driver_nl80211_data *drv = bss->drv;
c2a04078
JM		 6789 int ret = -1;
6790 struct nl_msg *msg;
6791
5cc4d64b 6792 if (params->mode == IEEE80211_MODE_AP)
1581b38b 6793 return wpa_driver_nl80211_ap(drv, params);
1581b38b 6794
5cc4d64b
JM		 6795 if (params->mode == IEEE80211_MODE_IBSS)
6796 return wpa_driver_nl80211_ibss(drv, params);
6797
4a867032 6798 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) {
b1f625e0
EP		 6799 enum nl80211_iftype nlmode = params->p2p ?
6800 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
6801
6802 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0)
4a867032 6803 return -1;
cfaab580 6804 return wpa_driver_nl80211_connect(drv, params);
4a867032 6805 }
cfaab580 6806
c2a04078
JM		 6807 drv->associated = 0;
6808
6809 msg = nlmsg_alloc();
6810 if (!msg)
6811 return -1;
6812
6813 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)",
6814 drv->ifindex);
9fb04070 6815 nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE);
c2a04078
JM		 6816
6817 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6818 if (params->bssid) {
6819 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
6820 MAC2STR(params->bssid));
6821 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
6822 }
6823 if (params->freq) {
6824 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
6825 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
4832ecd7
JM		 6826 drv->assoc_freq = params->freq;
6827 } else
6828 drv->assoc_freq = 0;
1f6c0ab8
BS		 6829 if (params->bg_scan_period >= 0) {
6830 wpa_printf(MSG_DEBUG, " * bg scan period=%d",
6831 params->bg_scan_period);
6832 NLA_PUT_U16(msg, NL80211_ATTR_BG_SCAN_PERIOD,
6833 params->bg_scan_period);
6834 }
c2a04078
JM		 6835 if (params->ssid) {
6836 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
6837 params->ssid, params->ssid_len);
6838 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
6839 params->ssid);
fd05d64e
JM		 6840 if (params->ssid_len > sizeof(drv->ssid))
6841 goto nla_put_failure;
6842 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
6843 drv->ssid_len = params->ssid_len;
c2a04078
JM		 6844 }
6845 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
6846 if (params->wpa_ie)
6847 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
6848 params->wpa_ie);
6849
aca01605
JM		 6850 if (params->pairwise_suite != CIPHER_NONE) {
6851 int cipher;
6852
6853 switch (params->pairwise_suite) {
6854 case CIPHER_WEP40:
6855 cipher = WLAN_CIPHER_SUITE_WEP40;
6856 break;
6857 case CIPHER_WEP104:
6858 cipher = WLAN_CIPHER_SUITE_WEP104;
6859 break;
6860 case CIPHER_CCMP:
6861 cipher = WLAN_CIPHER_SUITE_CCMP;
6862 break;
6863 case CIPHER_TKIP:
6864 default:
6865 cipher = WLAN_CIPHER_SUITE_TKIP;
6866 break;
6867 }
79c3124c 6868 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher);
aca01605
JM		 6869 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
6870 }
6871
6872 if (params->group_suite != CIPHER_NONE) {
6873 int cipher;
6874
6875 switch (params->group_suite) {
6876 case CIPHER_WEP40:
6877 cipher = WLAN_CIPHER_SUITE_WEP40;
6878 break;
6879 case CIPHER_WEP104:
6880 cipher = WLAN_CIPHER_SUITE_WEP104;
6881 break;
6882 case CIPHER_CCMP:
6883 cipher = WLAN_CIPHER_SUITE_CCMP;
6884 break;
6885 case CIPHER_TKIP:
6886 default:
6887 cipher = WLAN_CIPHER_SUITE_TKIP;
6888 break;
6889 }
79c3124c 6890 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher);
aca01605
JM		 6891 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
6892 }
6893
e572fa33
JM		 6894#ifdef CONFIG_IEEE80211W
6895 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED)
6896 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED);
6897#endif /* CONFIG_IEEE80211W */
6898
01652550
JM		 6899 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
6900
62fa124c
JM		 6901 if (params->prev_bssid) {
6902 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR,
6903 MAC2STR(params->prev_bssid));
6904 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN,
6905 params->prev_bssid);
6906 }
6907
80e8a5ee
BG		 6908 if (params->disable_ht)
6909 NLA_PUT_FLAG(msg, NL80211_ATTR_DISABLE_HT);
6910
6911 if (params->htcaps && params->htcaps_mask) {
6912 int sz = sizeof(struct ieee80211_ht_capabilities);
6913 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY, sz, params->htcaps);
6914 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK, sz,
6915 params->htcaps_mask);
6916 }
6917
046b26a2
JM		 6918 if (params->p2p)
6919 wpa_printf(MSG_DEBUG, " * P2P group");
6920
c2a04078
JM		 6921 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6922 msg = NULL;
6923 if (ret) {
3b7ea880
BG		 6924 wpa_dbg(drv->ctx, MSG_DEBUG,
6925 "nl80211: MLME command failed (assoc): ret=%d (%s)",
6926 ret, strerror(-ret));
8856462d 6927 nl80211_dump_scan(drv);
c2a04078
JM		 6928 goto nla_put_failure;
6929 }
6930 ret = 0;
6931 wpa_printf(MSG_DEBUG, "nl80211: Association request send "
6932 "successfully");
6933
6934nla_put_failure:
6935 nlmsg_free(msg);
6936 return ret;
6937}
3f5285e8
JM		 6938
6939
ad1e68e6 6940static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv,
a1922f93 6941 int ifindex, enum nl80211_iftype mode)
3f5285e8 6942{
3f5285e8 6943 struct nl_msg *msg;
ad1e68e6
JM		 6944 int ret = -ENOBUFS;
6945
a1922f93
JM		 6946 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)",
6947 ifindex, mode, nl80211_iftype_str(mode));
6948
ad1e68e6
JM		 6949 msg = nlmsg_alloc();
6950 if (!msg)
6951 return -ENOMEM;
6952
9fb04070 6953 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE);
ad1e68e6
JM		 6954 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
6955 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode);
6956
6957 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5883168a 6958 msg = NULL;
ad1e68e6
JM		 6959 if (!ret)
6960 return 0;
6961nla_put_failure:
5883168a 6962 nlmsg_free(msg);
ad1e68e6
JM		 6963 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:"
6964 " %d (%s)", ifindex, mode, ret, strerror(-ret));
6965 return ret;
6966}
6967
6968
b1f625e0
EP		 6969static int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
6970 enum nl80211_iftype nlmode)
ad1e68e6 6971{
a2e40bb6 6972 struct wpa_driver_nl80211_data *drv = bss->drv;
ad1e68e6 6973 int ret = -1;
26af9dca 6974 int i;
86957e62 6975 int was_ap = is_ap_interface(drv->nlmode);
671a5039 6976 int res;
1581b38b 6977
671a5039
JM		 6978 res = nl80211_set_mode(drv, drv->ifindex, nlmode);
6979 if (res == 0) {
ad1e68e6 6980 drv->nlmode = nlmode;
460456f8
JM		 6981 ret = 0;
6982 goto done;
ad1e68e6 6983 }
3f5285e8 6984
671a5039
JM		 6985 if (res == -ENODEV)
6986 return -1;
6987
460456f8 6988 if (nlmode == drv->nlmode) {
c6e8e8e4
JM		 6989 wpa_printf(MSG_DEBUG, "nl80211: Interface already in "
6990 "requested mode - ignore error");
460456f8
JM		 6991 ret = 0;
6992 goto done; /* Already in the requested mode */
6993 }
3f5285e8 6994
3f5285e8
JM		 6995 /* mac80211 doesn't allow mode changes while the device is up, so
6996 * take the device down, try to set the mode again, and bring the
6997 * device back up.
6998 */
26af9dca
JM		 6999 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting "
7000 "interface down");
7001 for (i = 0; i < 10; i++) {
c81eff1a
BG		 7002 res = linux_set_iface_flags(drv->global->ioctl_sock,
7003 bss->ifname, 0);
6e8183d7
JM		 7004 if (res == -EACCES || res == -ENODEV)
7005 break;
7006 if (res == 0) {
26af9dca
JM		 7007 /* Try to set the mode again while the interface is
7008 * down */
7009 ret = nl80211_set_mode(drv, drv->ifindex, nlmode);
6e8183d7
JM		 7010 if (ret == -EACCES)
7011 break;
c81eff1a 7012 res = linux_set_iface_flags(drv->global->ioctl_sock,
6e8183d7
JM		 7013 bss->ifname, 1);
7014 if (res && !ret)
26af9dca 7015 ret = -1;
6e8183d7 7016 else if (ret != -EBUSY)
26af9dca
JM		 7017 break;
7018 } else
7019 wpa_printf(MSG_DEBUG, "nl80211: Failed to set "
7020 "interface down");
7021 os_sleep(0, 100000);
3f5285e8
JM		 7022 }
7023
c6e8e8e4
JM		 7024 if (!ret) {
7025 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while "
7026 "interface is down");
ad1e68e6 7027 drv->nlmode = nlmode;
7d9c3698 7028 drv->ignore_if_down_event = 1;
c6e8e8e4 7029 }
ad1e68e6 7030
460456f8 7031done:
3fd1cefb
JB		 7032 if (ret) {
7033 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d "
7034 "from %d failed", nlmode, drv->nlmode);
7035 return ret;
7036 }
7037
7038 if (is_ap_interface(nlmode)) {
36488c05 7039 nl80211_mgmt_unsubscribe(bss, "start AP");
460456f8 7040 /* Setup additional AP mode functionality if needed */
3fd1cefb 7041 if (nl80211_setup_ap(bss))
460456f8 7042 return -1;
3fd1cefb 7043 } else if (was_ap) {
460456f8 7044 /* Remove additional AP mode functionality */
3fd1cefb 7045 nl80211_teardown_ap(bss);
a11241fa 7046 } else {
36488c05 7047 nl80211_mgmt_unsubscribe(bss, "mode change");
460456f8 7048 }
460456f8 7049
873d0fcf 7050 if (!bss->in_deinit && !is_ap_interface(nlmode) &&
a11241fa
JB		 7051 nl80211_mgmt_subscribe_non_ap(bss) < 0)
7052 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action "
7053 "frame processing - ignore for now");
08359050 7054
3fd1cefb 7055 return 0;
3f5285e8
JM		 7056}
7057
7058
3f5285e8
JM		 7059static int wpa_driver_nl80211_get_capa(void *priv,
7060 struct wpa_driver_capa *capa)
7061{
a2e40bb6
FF		 7062 struct i802_bss *bss = priv;
7063 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8
JM		 7064 if (!drv->has_capability)
7065 return -1;
7066 os_memcpy(capa, &drv->capa, sizeof(*capa));
7067 return 0;
7068}
7069
7070
7071static int wpa_driver_nl80211_set_operstate(void *priv, int state)
7072{
a2e40bb6
FF		 7073 struct i802_bss *bss = priv;
7074 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8
JM		 7075
7076 wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)",
7077 __func__, drv->operstate, state, state ? "UP" : "DORMANT");
7078 drv->operstate = state;
36d84860 7079 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1,
e2d02c29 7080 state ? IF_OPER_UP : IF_OPER_DORMANT);
3f5285e8
JM		 7081}
7082
01652550
JM		 7083
7084static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized)
7085{
a2e40bb6
FF		 7086 struct i802_bss *bss = priv;
7087 struct wpa_driver_nl80211_data *drv = bss->drv;
01652550
JM		 7088 struct nl_msg *msg;
7089 struct nl80211_sta_flag_update upd;
7090
7091 msg = nlmsg_alloc();
7092 if (!msg)
7093 return -ENOMEM;
7094
9fb04070 7095 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
01652550
JM		 7096
7097 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 7098 if_nametoindex(bss->ifname));
01652550
JM		 7099 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
7100
7101 os_memset(&upd, 0, sizeof(upd));
7102 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED);
7103 if (authorized)
7104 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED);
7105 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
7106
7107 return send_and_recv_msgs(drv, msg, NULL, NULL);
7108 nla_put_failure:
5883168a 7109 nlmsg_free(msg);
01652550
JM		 7110 return -ENOBUFS;
7111}
7112
3f5285e8 7113
f07ead6a
JM		 7114/* Set kernel driver on given frequency (MHz) */
7115static int i802_set_freq(void *priv, struct hostapd_freq_params *freq)
c5121837 7116{
f07ead6a 7117 struct i802_bss *bss = priv;
e4fb2167 7118 return wpa_driver_nl80211_set_freq(bss, freq->freq, freq->ht_enabled,
f07ead6a 7119 freq->sec_channel_offset);
c5121837
JM		 7120}
7121
f7b3920c
JM		 7122
7123#if defined(HOSTAPD) || defined(CONFIG_AP)
c5121837 7124
c5121837
JM		 7125static inline int min_int(int a, int b)
7126{
7127 if (a < b)
7128 return a;
7129 return b;
7130}
7131
7132
7133static int get_key_handler(struct nl_msg *msg, void *arg)
7134{
7135 struct nlattr *tb[NL80211_ATTR_MAX + 1];
7136 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
7137
7138 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
7139 genlmsg_attrlen(gnlh, 0), NULL);
7140
7141 /*
7142 * TODO: validate the key index and mac address!
7143 * Otherwise, there's a race condition as soon as
7144 * the kernel starts sending key notifications.
7145 */
7146
7147 if (tb[NL80211_ATTR_KEY_SEQ])
7148 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]),
7149 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6));
7150 return NL_SKIP;
7151}
7152
7153
7154static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
7155 int idx, u8 *seq)
7156{
a2e40bb6
FF		 7157 struct i802_bss *bss = priv;
7158 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 7159 struct nl_msg *msg;
7160
7161 msg = nlmsg_alloc();
7162 if (!msg)
7163 return -ENOMEM;
7164
9fb04070 7165 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY);
c5121837
JM		 7166
7167 if (addr)
7168 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7169 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
7170 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
7171
7172 memset(seq, 0, 6);
7173
7174 return send_and_recv_msgs(drv, msg, get_key_handler, seq);
7175 nla_put_failure:
9e088e74 7176 nlmsg_free(msg);
c5121837
JM		 7177 return -ENOBUFS;
7178}
7179
7180
c5121837
JM		 7181static int i802_set_rts(void *priv, int rts)
7182{
a2e40bb6
FF		 7183 struct i802_bss *bss = priv;
7184 struct wpa_driver_nl80211_data *drv = bss->drv;
ad649451
JM		 7185 struct nl_msg *msg;
7186 int ret = -ENOBUFS;
7187 u32 val;
c5121837 7188
ad649451
JM		 7189 msg = nlmsg_alloc();
7190 if (!msg)
7191 return -ENOMEM;
c5121837 7192
ad649451
JM		 7193 if (rts >= 2347)
7194 val = (u32) -1;
7195 else
7196 val = rts;
c5121837 7197
9fb04070 7198 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
ad649451
JM		 7199 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
7200 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val);
7201
7202 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5883168a 7203 msg = NULL;
ad649451
JM		 7204 if (!ret)
7205 return 0;
7206nla_put_failure:
5883168a 7207 nlmsg_free(msg);
ad649451
JM		 7208 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: "
7209 "%d (%s)", rts, ret, strerror(-ret));
7210 return ret;
c5121837
JM		 7211}
7212
7213
7214static int i802_set_frag(void *priv, int frag)
7215{
a2e40bb6
FF		 7216 struct i802_bss *bss = priv;
7217 struct wpa_driver_nl80211_data *drv = bss->drv;
ad649451
JM		 7218 struct nl_msg *msg;
7219 int ret = -ENOBUFS;
7220 u32 val;
c5121837 7221
ad649451
JM		 7222 msg = nlmsg_alloc();
7223 if (!msg)
7224 return -ENOMEM;
c5121837 7225
ad649451
JM		 7226 if (frag >= 2346)
7227 val = (u32) -1;
7228 else
7229 val = frag;
c5121837 7230
9fb04070 7231 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
ad649451
JM		 7232 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
7233 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val);
7234
7235 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5883168a 7236 msg = NULL;
ad649451
JM		 7237 if (!ret)
7238 return 0;
7239nla_put_failure:
5883168a 7240 nlmsg_free(msg);
ad649451
JM		 7241 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold "
7242 "%d: %d (%s)", frag, ret, strerror(-ret));
7243 return ret;
c5121837
JM		 7244}
7245
7246
c5121837
JM		 7247static int i802_flush(void *priv)
7248{
a2e40bb6
FF		 7249 struct i802_bss *bss = priv;
7250 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837 7251 struct nl_msg *msg;
82554b10 7252 int res;
c5121837
JM		 7253
7254 msg = nlmsg_alloc();
7255 if (!msg)
7256 return -1;
7257
9fb04070 7258 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION);
c5121837
JM		 7259
7260 /*
7261 * XXX: FIX! this needs to flush all VLANs too
7262 */
7263 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 7264 if_nametoindex(bss->ifname));
c5121837 7265
82554b10
JM		 7266 res = send_and_recv_msgs(drv, msg, NULL, NULL);
7267 if (res) {
7268 wpa_printf(MSG_DEBUG, "nl80211: Station flush failed: ret=%d "
7269 "(%s)", res, strerror(-res));
7270 }
7271 return res;
c5121837 7272 nla_put_failure:
9e088e74 7273 nlmsg_free(msg);
c5121837
JM		 7274 return -ENOBUFS;
7275}
7276
7277
7278static int get_sta_handler(struct nl_msg *msg, void *arg)
7279{
7280 struct nlattr *tb[NL80211_ATTR_MAX + 1];
7281 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
7282 struct hostap_sta_driver_data *data = arg;
7283 struct nlattr *stats[NL80211_STA_INFO_MAX + 1];
7284 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
7285 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
7286 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
7287 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
7288 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
7289 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
7290 };
7291
7292 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
7293 genlmsg_attrlen(gnlh, 0), NULL);
7294
7295 /*
7296 * TODO: validate the interface and mac address!
7297 * Otherwise, there's a race condition as soon as
7298 * the kernel starts sending station notifications.
7299 */
7300
7301 if (!tb[NL80211_ATTR_STA_INFO]) {
7302 wpa_printf(MSG_DEBUG, "sta stats missing!");
7303 return NL_SKIP;
7304 }
7305 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX,
7306 tb[NL80211_ATTR_STA_INFO],
7307 stats_policy)) {
7308 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!");
7309 return NL_SKIP;
7310 }
7311
7312 if (stats[NL80211_STA_INFO_INACTIVE_TIME])
7313 data->inactive_msec =
7314 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]);
7315 if (stats[NL80211_STA_INFO_RX_BYTES])
7316 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]);
7317 if (stats[NL80211_STA_INFO_TX_BYTES])
7318 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]);
7319 if (stats[NL80211_STA_INFO_RX_PACKETS])
7320 data->rx_packets =
7321 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]);
7322 if (stats[NL80211_STA_INFO_TX_PACKETS])
7323 data->tx_packets =
7324 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]);
7325
7326 return NL_SKIP;
7327}
7328
7329static int i802_read_sta_data(void *priv, struct hostap_sta_driver_data *data,
7330 const u8 *addr)
7331{
a2e40bb6
FF		 7332 struct i802_bss *bss = priv;
7333 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 7334 struct nl_msg *msg;
7335
7336 os_memset(data, 0, sizeof(*data));
7337 msg = nlmsg_alloc();
7338 if (!msg)
7339 return -ENOMEM;
7340
9fb04070 7341 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION);
c5121837
JM		 7342
7343 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
a2e40bb6 7344 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
c5121837
JM		 7345
7346 return send_and_recv_msgs(drv, msg, get_sta_handler, data);
7347 nla_put_failure:
9e088e74 7348 nlmsg_free(msg);
c5121837
JM		 7349 return -ENOBUFS;
7350}
7351
7352
c5121837
JM		 7353static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
7354 int cw_min, int cw_max, int burst_time)
7355{
a2e40bb6
FF		 7356 struct i802_bss *bss = priv;
7357 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 7358 struct nl_msg *msg;
7359 struct nlattr *txq, *params;
7360
7361 msg = nlmsg_alloc();
7362 if (!msg)
7363 return -1;
7364
9fb04070 7365 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
c5121837 7366
a2e40bb6 7367 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
c5121837
JM		 7368
7369 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS);
7370 if (!txq)
7371 goto nla_put_failure;
7372
7373 /* We are only sending parameters for a single TXQ at a time */
7374 params = nla_nest_start(msg, 1);
7375 if (!params)
7376 goto nla_put_failure;
7377
7e3c1781
JM		 7378 switch (queue) {
7379 case 0:
7380 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO);
7381 break;
7382 case 1:
7383 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI);
7384 break;
7385 case 2:
7386 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE);
7387 break;
7388 case 3:
7389 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK);
7390 break;
7391 }
c5121837
JM		 7392 /* Burst time is configured in units of 0.1 msec and TXOP parameter in
7393 * 32 usec, so need to convert the value here. */
7394 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32);
7395 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min);
7396 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max);
7397 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs);
7398
7399 nla_nest_end(msg, params);
7400
7401 nla_nest_end(msg, txq);
7402
7403 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
7404 return 0;
9e088e74 7405 msg = NULL;
c5121837 7406 nla_put_failure:
9e088e74 7407 nlmsg_free(msg);
c5121837
JM		 7408 return -1;
7409}
7410
7411
c5121837
JM		 7412static int i802_set_sta_vlan(void *priv, const u8 *addr,
7413 const char *ifname, int vlan_id)
7414{
a2e40bb6
FF		 7415 struct i802_bss *bss = priv;
7416 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837 7417 struct nl_msg *msg;
cd1d72c1 7418 int ret = -ENOBUFS;
c5121837
JM		 7419
7420 msg = nlmsg_alloc();
7421 if (!msg)
7422 return -ENOMEM;
7423
9fb04070 7424 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
c5121837
JM		 7425
7426 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 7427 if_nametoindex(bss->ifname));
c5121837 7428 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
1c766b09 7429 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN,
c5121837
JM		 7430 if_nametoindex(ifname));
7431
cd1d72c1 7432 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
9e088e74 7433 msg = NULL;
cd1d72c1
JM		 7434 if (ret < 0) {
7435 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr="
7436 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)",
7437 MAC2STR(addr), ifname, vlan_id, ret,
7438 strerror(-ret));
7439 }
c5121837 7440 nla_put_failure:
9e088e74 7441 nlmsg_free(msg);
cd1d72c1 7442 return ret;
c5121837
JM		 7443}
7444
fbbfcbac 7445
c5121837
JM		 7446static int i802_get_inact_sec(void *priv, const u8 *addr)
7447{
7448 struct hostap_sta_driver_data data;
7449 int ret;
7450
7451 data.inactive_msec = (unsigned long) -1;
7452 ret = i802_read_sta_data(priv, &data, addr);
7453 if (ret || data.inactive_msec == (unsigned long) -1)
7454 return -1;
7455 return data.inactive_msec / 1000;
7456}
7457
7458
7459static int i802_sta_clear_stats(void *priv, const u8 *addr)
7460{
7461#if 0
7462 /* TODO */
7463#endif
7464 return 0;
7465}
7466
7467
731723a5
JM		 7468static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
7469 int reason)
c5121837 7470{
a2e40bb6 7471 struct i802_bss *bss = priv;
e1bd4e19 7472 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 7473 struct ieee80211_mgmt mgmt;
7474
e1bd4e19
AT		 7475 if (drv->device_ap_sme)
7476 return wpa_driver_nl80211_sta_remove(bss, addr);
7477
c5121837
JM		 7478 memset(&mgmt, 0, sizeof(mgmt));
7479 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
7480 WLAN_FC_STYPE_DEAUTH);
7481 memcpy(mgmt.da, addr, ETH_ALEN);
731723a5
JM		 7482 memcpy(mgmt.sa, own_addr, ETH_ALEN);
7483 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
c5121837 7484 mgmt.u.deauth.reason_code = host_to_le16(reason);
a2e40bb6 7485 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
9f324b61 7486 IEEE80211_HDRLEN +
8cfa3527 7487 sizeof(mgmt.u.deauth), 0);
c5121837
JM		 7488}
7489
7490
731723a5
JM		 7491static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
7492 int reason)
c5121837 7493{
a2e40bb6 7494 struct i802_bss *bss = priv;
e1bd4e19 7495 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 7496 struct ieee80211_mgmt mgmt;
7497
e1bd4e19
AT		 7498 if (drv->device_ap_sme)
7499 return wpa_driver_nl80211_sta_remove(bss, addr);
7500
c5121837
JM		 7501 memset(&mgmt, 0, sizeof(mgmt));
7502 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
7503 WLAN_FC_STYPE_DISASSOC);
7504 memcpy(mgmt.da, addr, ETH_ALEN);
731723a5
JM		 7505 memcpy(mgmt.sa, own_addr, ETH_ALEN);
7506 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
c5121837 7507 mgmt.u.disassoc.reason_code = host_to_le16(reason);
a2e40bb6 7508 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
9f324b61 7509 IEEE80211_HDRLEN +
8cfa3527 7510 sizeof(mgmt.u.disassoc), 0);
c5121837
JM		 7511}
7512
ee7ab173
JB		 7513#endif /* HOSTAPD || CONFIG_AP */
7514
7515#ifdef HOSTAPD
c5121837 7516
f07ead6a
JM		 7517static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
7518{
7519 int i;
7520 int *old;
7521
7522 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d",
7523 ifidx);
7524 for (i = 0; i < drv->num_if_indices; i++) {
7525 if (drv->if_indices[i] == 0) {
7526 drv->if_indices[i] = ifidx;
7527 return;
7528 }
7529 }
7530
7531 if (drv->if_indices != drv->default_if_indices)
7532 old = drv->if_indices;
7533 else
7534 old = NULL;
7535
7536 drv->if_indices = os_realloc(old,
7537 sizeof(int) * (drv->num_if_indices + 1));
7538 if (!drv->if_indices) {
7539 if (!old)
7540 drv->if_indices = drv->default_if_indices;
7541 else
7542 drv->if_indices = old;
7543 wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
7544 "interfaces");
7545 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
7546 return;
7547 } else if (!old)
7548 os_memcpy(drv->if_indices, drv->default_if_indices,
7549 sizeof(drv->default_if_indices));
7550 drv->if_indices[drv->num_if_indices] = ifidx;
7551 drv->num_if_indices++;
7552}
7553
7554
7555static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
7556{
7557 int i;
7558
7559 for (i = 0; i < drv->num_if_indices; i++) {
7560 if (drv->if_indices[i] == ifidx) {
7561 drv->if_indices[i] = 0;
7562 break;
7563 }
7564 }
7565}
7566
7567
7568static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
7569{
7570 int i;
7571
7572 for (i = 0; i < drv->num_if_indices; i++)
7573 if (drv->if_indices[i] == ifidx)
7574 return 1;
7575
7576 return 0;
7577}
7578
7579
7580static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val,
7581 const char *bridge_ifname)
7582{
7583 struct i802_bss *bss = priv;
7584 struct wpa_driver_nl80211_data *drv = bss->drv;
7585 char name[IFNAMSIZ + 1];
7586
7587 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid);
7588 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR
7589 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name);
7590 if (val) {
7591 if (!if_nametoindex(name)) {
7592 if (nl80211_create_iface(drv, name,
7593 NL80211_IFTYPE_AP_VLAN,
7594 NULL, 1) < 0)
7595 return -1;
7596 if (bridge_ifname &&
c81eff1a
BG		 7597 linux_br_add_if(drv->global->ioctl_sock,
7598 bridge_ifname, name) < 0)
f07ead6a
JM		 7599 return -1;
7600 }
c81eff1a 7601 linux_set_iface_flags(drv->global->ioctl_sock, name, 1);
f07ead6a
JM		 7602 return i802_set_sta_vlan(priv, addr, name, 0);
7603 } else {
7604 i802_set_sta_vlan(priv, addr, bss->ifname, 0);
7605 return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN,
7606 name);
7607 }
7608}
7609
7610
7611static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
7612{
7613 struct wpa_driver_nl80211_data *drv = eloop_ctx;
7614 struct sockaddr_ll lladdr;
7615 unsigned char buf[3000];
7616 int len;
7617 socklen_t fromlen = sizeof(lladdr);
7618
7619 len = recvfrom(sock, buf, sizeof(buf), 0,
7620 (struct sockaddr *)&lladdr, &fromlen);
7621 if (len < 0) {
7622 perror("recv");
7623 return;
7624 }
7625
7626 if (have_ifidx(drv, lladdr.sll_ifindex))
7627 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len);
7628}
7629
7630
94627f6c 7631static int i802_check_bridge(struct wpa_driver_nl80211_data *drv,
e17a2477 7632 struct i802_bss *bss,
94627f6c
JM		 7633 const char *brname, const char *ifname)
7634{
7635 int ifindex;
7636 char in_br[IFNAMSIZ];
7637
e17a2477 7638 os_strlcpy(bss->brname, brname, IFNAMSIZ);
94627f6c
JM		 7639 ifindex = if_nametoindex(brname);
7640 if (ifindex == 0) {
7641 /*
7642 * Bridge was configured, but the bridge device does
7643 * not exist. Try to add it now.
7644 */
c81eff1a 7645 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) {
94627f6c
JM		 7646 wpa_printf(MSG_ERROR, "nl80211: Failed to add the "
7647 "bridge interface %s: %s",
7648 brname, strerror(errno));
7649 return -1;
7650 }
e17a2477 7651 bss->added_bridge = 1;
94627f6c
JM		 7652 add_ifidx(drv, if_nametoindex(brname));
7653 }
7654
7655 if (linux_br_get(in_br, ifname) == 0) {
7656 if (os_strcmp(in_br, brname) == 0)
7657 return 0; /* already in the bridge */
7658
7659 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from "
7660 "bridge %s", ifname, in_br);
c81eff1a
BG		 7661 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) <
7662 0) {
94627f6c
JM		 7663 wpa_printf(MSG_ERROR, "nl80211: Failed to "
7664 "remove interface %s from bridge "
7665 "%s: %s",
7666 ifname, brname, strerror(errno));
7667 return -1;
7668 }
7669 }
7670
7671 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s",
7672 ifname, brname);
c81eff1a 7673 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) {
94627f6c
JM		 7674 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s "
7675 "into bridge %s: %s",
7676 ifname, brname, strerror(errno));
7677 return -1;
7678 }
e17a2477 7679 bss->added_if_into_bridge = 1;
94627f6c
JM		 7680
7681 return 0;
7682}
7683
7684
92f475b4
JM		 7685static void *i802_init(struct hostapd_data *hapd,
7686 struct wpa_init_params *params)
c5121837
JM		 7687{
7688 struct wpa_driver_nl80211_data *drv;
a2e40bb6 7689 struct i802_bss *bss;
c5121837 7690 size_t i;
94627f6c
JM		 7691 char brname[IFNAMSIZ];
7692 int ifindex, br_ifindex;
7693 int br_added = 0;
c5121837 7694
4b24282a
JM		 7695 bss = wpa_driver_nl80211_init(hapd, params->ifname,
7696 params->global_priv);
a2e40bb6 7697 if (bss == NULL)
c5121837 7698 return NULL;
c5121837 7699
a2e40bb6 7700 drv = bss->drv;
0382097e 7701 drv->nlmode = NL80211_IFTYPE_AP;
7635bfb0
JB		 7702 drv->eapol_sock = -1;
7703
94627f6c
JM		 7704 if (linux_br_get(brname, params->ifname) == 0) {
7705 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s",
7706 params->ifname, brname);
7707 br_ifindex = if_nametoindex(brname);
7708 } else {
7709 brname[0] = '\0';
7710 br_ifindex = 0;
7711 }
7712
c5121837
JM		 7713 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
7714 drv->if_indices = drv->default_if_indices;
92f475b4 7715 for (i = 0; i < params->num_bridge; i++) {
94627f6c
JM		 7716 if (params->bridge[i]) {
7717 ifindex = if_nametoindex(params->bridge[i]);
7718 if (ifindex)
7719 add_ifidx(drv, ifindex);
7720 if (ifindex == br_ifindex)
7721 br_added = 1;
7722 }
c5121837 7723 }
94627f6c
JM		 7724 if (!br_added && br_ifindex &&
7725 (params->num_bridge == 0 || !params->bridge[0]))
7726 add_ifidx(drv, br_ifindex);
c5121837 7727
ad1e68e6
JM		 7728 /* start listening for EAPOL on the default AP interface */
7729 add_ifidx(drv, drv->ifindex);
7730
c81eff1a 7731 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0))
6980c191 7732 goto failed;
ad1e68e6 7733
6980c191 7734 if (params->bssid) {
c81eff1a 7735 if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
2ac9688e 7736 params->bssid))
460456f8
JM		 7737 goto failed;
7738 }
ad1e68e6 7739
b1f625e0 7740 if (wpa_driver_nl80211_set_mode(bss, drv->nlmode)) {
ad1e68e6 7741 wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s "
a2e40bb6 7742 "into AP mode", bss->ifname);
bbaf0837 7743 goto failed;
ad1e68e6
JM		 7744 }
7745
94627f6c 7746 if (params->num_bridge && params->bridge[0] &&
e17a2477 7747 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0)
94627f6c
JM		 7748 goto failed;
7749
c81eff1a 7750 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1))
bbaf0837 7751 goto failed;
ad1e68e6
JM		 7752
7753 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE));
7754 if (drv->eapol_sock < 0) {
7755 perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)");
bbaf0837 7756 goto failed;
ad1e68e6
JM		 7757 }
7758
7759 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL))
7760 {
7761 printf("Could not register read socket for eapol\n");
c5121837 7762 goto failed;
ad1e68e6
JM		 7763 }
7764
c81eff1a
BG		 7765 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
7766 params->own_addr))
bbaf0837 7767 goto failed;
c5121837 7768
341eebee
JB		 7769 memcpy(bss->addr, params->own_addr, ETH_ALEN);
7770
a2e40bb6 7771 return bss;
c5121837
JM		 7772
7773failed:
7635bfb0 7774 wpa_driver_nl80211_deinit(bss);
bbaf0837
JM		 7775 return NULL;
7776}
c5121837 7777
c5121837 7778
bbaf0837
JM		 7779static void i802_deinit(void *priv)
7780{
7781 wpa_driver_nl80211_deinit(priv);
c5121837
JM		 7782}
7783
7784#endif /* HOSTAPD */
7785
7786
22a7c9d7
JM		 7787static enum nl80211_iftype wpa_driver_nl80211_if_type(
7788 enum wpa_driver_if_type type)
7789{
7790 switch (type) {
7791 case WPA_IF_STATION:
9f51b113 7792 return NL80211_IFTYPE_STATION;
75bde05d
JM		 7793 case WPA_IF_P2P_CLIENT:
7794 case WPA_IF_P2P_GROUP:
9f51b113 7795 return NL80211_IFTYPE_P2P_CLIENT;
22a7c9d7
JM		 7796 case WPA_IF_AP_VLAN:
7797 return NL80211_IFTYPE_AP_VLAN;
7798 case WPA_IF_AP_BSS:
7799 return NL80211_IFTYPE_AP;
9f51b113
JB		 7800 case WPA_IF_P2P_GO:
7801 return NL80211_IFTYPE_P2P_GO;
22a7c9d7
JM		 7802 }
7803 return -1;
7804}
7805
7806
482856c8
JM		 7807#ifdef CONFIG_P2P
7808
f2ed8023
JM		 7809static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr)
7810{
7811 struct wpa_driver_nl80211_data *drv;
7812 dl_list_for_each(drv, &global->interfaces,
7813 struct wpa_driver_nl80211_data, list) {
341eebee 7814 if (os_memcmp(addr, drv->first_bss.addr, ETH_ALEN) == 0)
f2ed8023
JM		 7815 return 1;
7816 }
7817 return 0;
7818}
7819
7820
7821static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv,
7822 u8 *new_addr)
7823{
7824 unsigned int idx;
7825
7826 if (!drv->global)
7827 return -1;
7828
341eebee 7829 os_memcpy(new_addr, drv->first_bss.addr, ETH_ALEN);
f2ed8023 7830 for (idx = 0; idx < 64; idx++) {
341eebee 7831 new_addr[0] = drv->first_bss.addr[0] | 0x02;
f2ed8023
JM		 7832 new_addr[0] ^= idx << 2;
7833 if (!nl80211_addr_in_use(drv->global, new_addr))
7834 break;
7835 }
7836 if (idx == 64)
7837 return -1;
7838
7839 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address "
7840 MACSTR, MAC2STR(new_addr));
7841
7842 return 0;
7843}
7844
482856c8
JM		 7845#endif /* CONFIG_P2P */
7846
f2ed8023 7847
7ab68865 7848static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type,
8043e725 7849 const char *ifname, const u8 *addr,
f3585c8a 7850 void *bss_ctx, void **drv_priv,
e17a2477
JM		 7851 char *force_ifname, u8 *if_addr,
7852 const char *bridge)
22a7c9d7 7853{
a2e40bb6
FF		 7854 struct i802_bss *bss = priv;
7855 struct wpa_driver_nl80211_data *drv = bss->drv;
22a7c9d7
JM		 7856 int ifidx;
7857#ifdef HOSTAPD
a2e40bb6 7858 struct i802_bss *new_bss = NULL;
22a7c9d7
JM		 7859
7860 if (type == WPA_IF_AP_BSS) {
a2e40bb6
FF		 7861 new_bss = os_zalloc(sizeof(*new_bss));
7862 if (new_bss == NULL)
22a7c9d7
JM		 7863 return -1;
7864 }
7865#endif /* HOSTAPD */
7866
f3585c8a
JM		 7867 if (addr)
7868 os_memcpy(if_addr, addr, ETH_ALEN);
22a7c9d7 7869 ifidx = nl80211_create_iface(drv, ifname,
fbbfcbac
FF		 7870 wpa_driver_nl80211_if_type(type), addr,
7871 0);
22a7c9d7
JM		 7872 if (ifidx < 0) {
7873#ifdef HOSTAPD
a2e40bb6 7874 os_free(new_bss);
22a7c9d7
JM		 7875#endif /* HOSTAPD */
7876 return -1;
7877 }
7878
f3585c8a 7879 if (!addr &&
c81eff1a
BG		 7880 linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
7881 if_addr) < 0) {
c55f774d 7882 nl80211_remove_iface(drv, ifidx);
f3585c8a 7883 return -1;
c55f774d
JM		 7884 }
7885
7886#ifdef CONFIG_P2P
7887 if (!addr &&
7888 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP ||
7889 type == WPA_IF_P2P_GO)) {
7890 /* Enforce unique P2P Interface Address */
7891 u8 new_addr[ETH_ALEN], own_addr[ETH_ALEN];
7892
c81eff1a
BG		 7893 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
7894 own_addr) < 0 ||
7895 linux_get_ifhwaddr(drv->global->ioctl_sock, ifname,
7896 new_addr) < 0) {
c55f774d
JM		 7897 nl80211_remove_iface(drv, ifidx);
7898 return -1;
7899 }
7900 if (os_memcmp(own_addr, new_addr, ETH_ALEN) == 0) {
7901 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address "
7902 "for P2P group interface");
f2ed8023 7903 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) {
c55f774d
JM		 7904 nl80211_remove_iface(drv, ifidx);
7905 return -1;
7906 }
c81eff1a 7907 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname,
c55f774d
JM		 7908 new_addr) < 0) {
7909 nl80211_remove_iface(drv, ifidx);
7910 return -1;
7911 }
c55f774d 7912 }
f67eeb5c 7913 os_memcpy(if_addr, new_addr, ETH_ALEN);
c55f774d
JM		 7914 }
7915#endif /* CONFIG_P2P */
f3585c8a 7916
22a7c9d7 7917#ifdef HOSTAPD
e17a2477
JM		 7918 if (bridge &&
7919 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) {
7920 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new "
7921 "interface %s to a bridge %s", ifname, bridge);
7922 nl80211_remove_iface(drv, ifidx);
7923 os_free(new_bss);
7924 return -1;
7925 }
7926
22a7c9d7 7927 if (type == WPA_IF_AP_BSS) {
c81eff1a
BG		 7928 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1))
7929 {
34f2f814 7930 nl80211_remove_iface(drv, ifidx);
07179987 7931 os_free(new_bss);
22a7c9d7
JM		 7932 return -1;
7933 }
a2e40bb6 7934 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ);
341eebee 7935 os_memcpy(new_bss->addr, if_addr, ETH_ALEN);
a2e40bb6
FF		 7936 new_bss->ifindex = ifidx;
7937 new_bss->drv = drv;
7938 new_bss->next = drv->first_bss.next;
a7a6af4c 7939 new_bss->freq = drv->first_bss.freq;
a2e40bb6
FF		 7940 drv->first_bss.next = new_bss;
7941 if (drv_priv)
7942 *drv_priv = new_bss;
cc7a48d1 7943 nl80211_init_bss(new_bss);
3dd1d890
YAP		 7944
7945 /* Subscribe management frames for this WPA_IF_AP_BSS */
7946 if (nl80211_setup_ap(new_bss))
7947 return -1;
22a7c9d7
JM		 7948 }
7949#endif /* HOSTAPD */
7950
ff6a158b
JM		 7951 if (drv->global)
7952 drv->global->if_add_ifindex = ifidx;
7953
22a7c9d7
JM		 7954 return 0;
7955}
7956
7957
7958static int wpa_driver_nl80211_if_remove(void *priv,
7959 enum wpa_driver_if_type type,
7960 const char *ifname)
7961{
a2e40bb6
FF		 7962 struct i802_bss *bss = priv;
7963 struct wpa_driver_nl80211_data *drv = bss->drv;
22a7c9d7
JM		 7964 int ifindex = if_nametoindex(ifname);
7965
e748062b
JM		 7966 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d",
7967 __func__, type, ifname, ifindex);
7968 if (ifindex <= 0)
7969 return -1;
e17a2477
JM		 7970
7971#ifdef HOSTAPD
7972 if (bss->added_if_into_bridge) {
c81eff1a
BG		 7973 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname,
7974 bss->ifname) < 0)
e17a2477
JM		 7975 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
7976 "interface %s from bridge %s: %s",
7977 bss->ifname, bss->brname, strerror(errno));
7978 }
7979 if (bss->added_bridge) {
c81eff1a 7980 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0)
e17a2477
JM		 7981 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
7982 "bridge %s: %s",
7983 bss->brname, strerror(errno));
7984 }
7985#endif /* HOSTAPD */
7986
22a7c9d7
JM		 7987 nl80211_remove_iface(drv, ifindex);
7988
7989#ifdef HOSTAPD
a2e40bb6
FF		 7990 if (type != WPA_IF_AP_BSS)
7991 return 0;
7992
7993 if (bss != &drv->first_bss) {
8546ea19 7994 struct i802_bss *tbss;
a2e40bb6 7995
8546ea19
JM		 7996 for (tbss = &drv->first_bss; tbss; tbss = tbss->next) {
7997 if (tbss->next == bss) {
7998 tbss->next = bss->next;
3dd1d890
YAP		 7999 /* Unsubscribe management frames */
8000 nl80211_teardown_ap(bss);
cc7a48d1 8001 nl80211_destroy_bss(bss);
8546ea19
JM		 8002 os_free(bss);
8003 bss = NULL;
8004 break;
8005 }
22a7c9d7 8006 }
8546ea19
JM		 8007 if (bss)
8008 wpa_printf(MSG_INFO, "nl80211: %s - could not find "
8009 "BSS %p in the list", __func__, bss);
22a7c9d7
JM		 8010 }
8011#endif /* HOSTAPD */
8012
8013 return 0;
8014}
8015
8016
55777702
JM		 8017static int cookie_handler(struct nl_msg *msg, void *arg)
8018{
8019 struct nlattr *tb[NL80211_ATTR_MAX + 1];
8020 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
8021 u64 *cookie = arg;
8022 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
8023 genlmsg_attrlen(gnlh, 0), NULL);
8024 if (tb[NL80211_ATTR_COOKIE])
8025 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
8026 return NL_SKIP;
8027}
8028
8029
88df0ef7 8030static int nl80211_send_frame_cmd(struct i802_bss *bss,
5dfca53f
JB		 8031 unsigned int freq, unsigned int wait,
8032 const u8 *buf, size_t buf_len,
88df0ef7
JB		 8033 u64 *cookie_out, int no_cck, int no_ack,
8034 int offchanok)
9884f9cc 8035{
88df0ef7 8036 struct wpa_driver_nl80211_data *drv = bss->drv;
9884f9cc
JB		 8037 struct nl_msg *msg;
8038 u64 cookie;
8039 int ret = -1;
8040
8041 msg = nlmsg_alloc();
8042 if (!msg)
8043 return -1;
8044
2e3e4566
JM		 8045 wpa_printf(MSG_DEBUG, "nl80211: CMD_FRAME freq=%u wait=%u no_cck=%d "
8046 "no_ack=%d offchanok=%d",
8047 freq, wait, no_cck, no_ack, offchanok);
9fb04070 8048 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME);
9884f9cc 8049
88df0ef7 8050 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
9884f9cc 8051 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
9db931ed
JM		 8052 if (wait)
8053 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait);
b9fd8ce8 8054 if (offchanok && (drv->capa.flags & WPA_DRIVER_FLAGS_OFFCHANNEL_TX))
88df0ef7 8055 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
b106173a
JM		 8056 if (no_cck)
8057 NLA_PUT_FLAG(msg, NL80211_ATTR_TX_NO_CCK_RATE);
ddc53271
JM		 8058 if (no_ack)
8059 NLA_PUT_FLAG(msg, NL80211_ATTR_DONT_WAIT_FOR_ACK);
970fa12e 8060
9884f9cc
JB		 8061 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf);
8062
8063 cookie = 0;
8064 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
8065 msg = NULL;
8066 if (ret) {
8067 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d "
a05225c8
JM		 8068 "(%s) (freq=%u wait=%u)", ret, strerror(-ret),
8069 freq, wait);
9884f9cc
JB		 8070 goto nla_put_failure;
8071 }
ddc53271
JM		 8072 wpa_printf(MSG_DEBUG, "nl80211: Frame TX command accepted%s; "
8073 "cookie 0x%llx", no_ack ? " (no ACK)" : "",
8074 (long long unsigned int) cookie);
9884f9cc
JB		 8075
8076 if (cookie_out)
ddc53271 8077 *cookie_out = no_ack ? (u64) -1 : cookie;
9884f9cc
JB		 8078
8079nla_put_failure:
8080 nlmsg_free(msg);
8081 return ret;
8082}
8083
8084
58f6fbe0 8085static int wpa_driver_nl80211_send_action(void *priv, unsigned int freq,
190b9062 8086 unsigned int wait_time,
58f6fbe0
JM		 8087 const u8 *dst, const u8 *src,
8088 const u8 *bssid,
b106173a
JM		 8089 const u8 *data, size_t data_len,
8090 int no_cck)
58f6fbe0 8091{
a2e40bb6
FF		 8092 struct i802_bss *bss = priv;
8093 struct wpa_driver_nl80211_data *drv = bss->drv;
58f6fbe0 8094 int ret = -1;
58f6fbe0
JM		 8095 u8 *buf;
8096 struct ieee80211_hdr *hdr;
58f6fbe0 8097
5dfca53f 8098 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, "
55231068
JM		 8099 "freq=%u MHz wait=%d ms no_cck=%d)",
8100 drv->ifindex, freq, wait_time, no_cck);
58f6fbe0
JM		 8101
8102 buf = os_zalloc(24 + data_len);
8103 if (buf == NULL)
8104 return ret;
8105 os_memcpy(buf + 24, data, data_len);
8106 hdr = (struct ieee80211_hdr *) buf;
8107 hdr->frame_control =
8108 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION);
8109 os_memcpy(hdr->addr1, dst, ETH_ALEN);
8110 os_memcpy(hdr->addr2, src, ETH_ALEN);
8111 os_memcpy(hdr->addr3, bssid, ETH_ALEN);
8112
b1f625e0 8113 if (is_ap_interface(drv->nlmode))
55231068
JM		 8114 ret = wpa_driver_nl80211_send_mlme_freq(priv, buf,
8115 24 + data_len,
8116 0, freq, no_cck, 1,
8117 wait_time);
9884f9cc 8118 else
88df0ef7 8119 ret = nl80211_send_frame_cmd(bss, freq, wait_time, buf,
5dfca53f 8120 24 + data_len,
b106173a 8121 &drv->send_action_cookie,
88df0ef7 8122 no_cck, 0, 1);
58f6fbe0 8123
f8bf1421 8124 os_free(buf);
58f6fbe0
JM		 8125 return ret;
8126}
8127
8128
5dfca53f
JB		 8129static void wpa_driver_nl80211_send_action_cancel_wait(void *priv)
8130{
8131 struct i802_bss *bss = priv;
8132 struct wpa_driver_nl80211_data *drv = bss->drv;
8133 struct nl_msg *msg;
8134 int ret;
8135
8136 msg = nlmsg_alloc();
8137 if (!msg)
8138 return;
8139
9fb04070 8140 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL);
5dfca53f
JB		 8141
8142 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8143 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie);
8144
8145 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8146 msg = NULL;
8147 if (ret)
8148 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d "
8149 "(%s)", ret, strerror(-ret));
8150
8151 nla_put_failure:
8152 nlmsg_free(msg);
8153}
8154
8155
55777702
JM		 8156static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq,
8157 unsigned int duration)
8158{
a2e40bb6
FF		 8159 struct i802_bss *bss = priv;
8160 struct wpa_driver_nl80211_data *drv = bss->drv;
55777702
JM		 8161 struct nl_msg *msg;
8162 int ret;
8163 u64 cookie;
8164
8165 msg = nlmsg_alloc();
8166 if (!msg)
8167 return -1;
8168
9fb04070 8169 nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL);
55777702
JM		 8170
8171 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8172 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
8173 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
8174
8175 cookie = 0;
8176 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
5883168a 8177 msg = NULL;
55777702
JM		 8178 if (ret == 0) {
8179 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie "
8180 "0x%llx for freq=%u MHz duration=%u",
8181 (long long unsigned int) cookie, freq, duration);
8182 drv->remain_on_chan_cookie = cookie;
531f0331 8183 drv->pending_remain_on_chan = 1;
55777702
JM		 8184 return 0;
8185 }
8186 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel "
15ed5535
JM		 8187 "(freq=%d duration=%u): %d (%s)",
8188 freq, duration, ret, strerror(-ret));
55777702 8189nla_put_failure:
5883168a 8190 nlmsg_free(msg);
55777702
JM		 8191 return -1;
8192}
8193
8194
8195static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv)
8196{
a2e40bb6
FF		 8197 struct i802_bss *bss = priv;
8198 struct wpa_driver_nl80211_data *drv = bss->drv;
55777702
JM		 8199 struct nl_msg *msg;
8200 int ret;
8201
8202 if (!drv->pending_remain_on_chan) {
8203 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel "
8204 "to cancel");
8205 return -1;
8206 }
8207
8208 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie "
8209 "0x%llx",
8210 (long long unsigned int) drv->remain_on_chan_cookie);
8211
8212 msg = nlmsg_alloc();
8213 if (!msg)
8214 return -1;
8215
9fb04070 8216 nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL);
55777702
JM		 8217
8218 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8219 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie);
8220
8221 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5883168a 8222 msg = NULL;
55777702
JM		 8223 if (ret == 0)
8224 return 0;
8225 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: "
8226 "%d (%s)", ret, strerror(-ret));
8227nla_put_failure:
5883168a 8228 nlmsg_free(msg);
55777702
JM		 8229 return -1;
8230}
8231
8232
504e905c
JM		 8233static int wpa_driver_nl80211_probe_req_report(void *priv, int report)
8234{
a2e40bb6
FF		 8235 struct i802_bss *bss = priv;
8236 struct wpa_driver_nl80211_data *drv = bss->drv;
504e905c 8237
5582a5d1 8238 if (!report) {
0d891981
JM		 8239 if (bss->nl_preq && drv->device_ap_sme &&
8240 is_ap_interface(drv->nlmode)) {
8241 /*
8242 * Do not disable Probe Request reporting that was
8243 * enabled in nl80211_setup_ap().
8244 */
8245 wpa_printf(MSG_DEBUG, "nl80211: Skip disabling of "
8246 "Probe Request reporting nl_preq=%p while "
8247 "in AP mode", bss->nl_preq);
8248 } else if (bss->nl_preq) {
36488c05
JM		 8249 wpa_printf(MSG_DEBUG, "nl80211: Disable Probe Request "
8250 "reporting nl_preq=%p", bss->nl_preq);
5582a5d1 8251 eloop_unregister_read_sock(
481234cf 8252 nl_socket_get_fd(bss->nl_preq));
221a59c9 8253 nl_destroy_handles(&bss->nl_preq);
5582a5d1
JB		 8254 }
8255 return 0;
8256 }
8257
481234cf 8258 if (bss->nl_preq) {
5582a5d1 8259 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting "
36488c05 8260 "already on! nl_preq=%p", bss->nl_preq);
5582a5d1
JB		 8261 return 0;
8262 }
8263
481234cf
JM		 8264 bss->nl_preq = nl_create_handle(drv->global->nl_cb, "preq");
8265 if (bss->nl_preq == NULL)
5582a5d1 8266 return -1;
36488c05
JM		 8267 wpa_printf(MSG_DEBUG, "nl80211: Enable Probe Request "
8268 "reporting nl_preq=%p", bss->nl_preq);
5582a5d1 8269
481234cf 8270 if (nl80211_register_frame(bss, bss->nl_preq,
5582a5d1
JB		 8271 (WLAN_FC_TYPE_MGMT << 2) |
8272 (WLAN_FC_STYPE_PROBE_REQ << 4),
a92dfde8
JB		 8273 NULL, 0) < 0)
8274 goto out_err;
5582a5d1 8275
481234cf 8276 eloop_register_read_sock(nl_socket_get_fd(bss->nl_preq),
a11241fa 8277 wpa_driver_nl80211_event_receive, bss->nl_cb,
481234cf 8278 bss->nl_preq);
5582a5d1 8279
504e905c 8280 return 0;
5582a5d1 8281
a92dfde8 8282 out_err:
221a59c9 8283 nl_destroy_handles(&bss->nl_preq);
5582a5d1 8284 return -1;
504e905c
JM		 8285}
8286
8287
4e5cb1a3
JM		 8288static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
8289 int ifindex, int disabled)
8290{
8291 struct nl_msg *msg;
8292 struct nlattr *bands, *band;
8293 int ret;
8294
8295 msg = nlmsg_alloc();
8296 if (!msg)
8297 return -1;
8298
9fb04070 8299 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK);
4e5cb1a3
JM		 8300 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
8301
8302 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES);
8303 if (!bands)
8304 goto nla_put_failure;
8305
8306 /*
8307 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything
8308 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS
8309 * rates. All 5 GHz rates are left enabled.
8310 */
8311 band = nla_nest_start(msg, NL80211_BAND_2GHZ);
8312 if (!band)
8313 goto nla_put_failure;
1dea5882
JM		 8314 if (disabled) {
8315 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8,
8316 "\x0c\x12\x18\x24\x30\x48\x60\x6c");
8317 }
4e5cb1a3
JM		 8318 nla_nest_end(msg, band);
8319
8320 nla_nest_end(msg, bands);
8321
8322 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
8323 msg = NULL;
8324 if (ret) {
8325 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d "
8326 "(%s)", ret, strerror(-ret));
8327 }
8328
8329 return ret;
8330
8331nla_put_failure:
8332 nlmsg_free(msg);
8333 return -1;
8334}
8335
8336
af473088
JM		 8337static int wpa_driver_nl80211_deinit_ap(void *priv)
8338{
a2e40bb6
FF		 8339 struct i802_bss *bss = priv;
8340 struct wpa_driver_nl80211_data *drv = bss->drv;
b1f625e0 8341 if (!is_ap_interface(drv->nlmode))
af473088
JM		 8342 return -1;
8343 wpa_driver_nl80211_del_beacon(drv);
b1f625e0 8344 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION);
af473088
JM		 8345}
8346
8347
3c29244e
EP		 8348static int wpa_driver_nl80211_deinit_p2p_cli(void *priv)
8349{
8350 struct i802_bss *bss = priv;
8351 struct wpa_driver_nl80211_data *drv = bss->drv;
8352 if (drv->nlmode != NL80211_IFTYPE_P2P_CLIENT)
8353 return -1;
8354 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION);
8355}
8356
8357
207ef3fb
JM		 8358static void wpa_driver_nl80211_resume(void *priv)
8359{
a2e40bb6
FF		 8360 struct i802_bss *bss = priv;
8361 struct wpa_driver_nl80211_data *drv = bss->drv;
c81eff1a 8362 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) {
207ef3fb
JM		 8363 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on "
8364 "resume event");
8365 }
8366}
8367
8368
7b90c16a
JM		 8369static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap,
8370 const u8 *ies, size_t ies_len)
8371{
8372 struct i802_bss *bss = priv;
8373 struct wpa_driver_nl80211_data *drv = bss->drv;
8374 int ret;
8375 u8 *data, *pos;
8376 size_t data_len;
341eebee 8377 const u8 *own_addr = bss->addr;
7b90c16a
JM		 8378
8379 if (action != 1) {
8380 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action "
8381 "action %d", action);
8382 return -1;
8383 }
8384
8385 /*
8386 * Action frame payload:
8387 * Category[1] = 6 (Fast BSS Transition)
8388 * Action[1] = 1 (Fast BSS Transition Request)
8389 * STA Address
8390 * Target AP Address
8391 * FT IEs
8392 */
8393
73fc617d
JM		 8394 data_len = 2 + 2 * ETH_ALEN + ies_len;
8395 data = os_malloc(data_len);
7b90c16a
JM		 8396 if (data == NULL)
8397 return -1;
8398 pos = data;
8399 *pos++ = 0x06; /* FT Action category */
8400 *pos++ = action;
8401 os_memcpy(pos, own_addr, ETH_ALEN);
8402 pos += ETH_ALEN;
8403 os_memcpy(pos, target_ap, ETH_ALEN);
8404 pos += ETH_ALEN;
8405 os_memcpy(pos, ies, ies_len);
8406
190b9062
JB		 8407 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0,
8408 drv->bssid, own_addr, drv->bssid,
b106173a 8409 data, data_len, 0);
7b90c16a
JM		 8410 os_free(data);
8411
8412 return ret;
8413}
8414
8415
b625473c
JM		 8416static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis)
8417{
8418 struct i802_bss *bss = priv;
8419 struct wpa_driver_nl80211_data *drv = bss->drv;
8420 struct nl_msg *msg, *cqm = NULL;
8421
8422 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d "
8423 "hysteresis=%d", threshold, hysteresis);
8424
8425 msg = nlmsg_alloc();
8426 if (!msg)
8427 return -1;
8428
9fb04070 8429 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM);
b625473c
JM		 8430
8431 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
8432
8433 cqm = nlmsg_alloc();
8434 if (cqm == NULL)
8435 return -1;
8436
8437 NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_THOLD, threshold);
8438 NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_HYST, hysteresis);
8439 nla_put_nested(msg, NL80211_ATTR_CQM, cqm);
8440
8441 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
8442 return 0;
8443 msg = NULL;
8444
8445nla_put_failure:
5883168a 8446 nlmsg_free(cqm);
b625473c
JM		 8447 nlmsg_free(msg);
8448 return -1;
8449}
8450
8451
1c5c7273
PS		 8452static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si)
8453{
8454 struct i802_bss *bss = priv;
8455 struct wpa_driver_nl80211_data *drv = bss->drv;
8456 int res;
8457
8458 os_memset(si, 0, sizeof(*si));
8459 res = nl80211_get_link_signal(drv, si);
8460 if (res != 0)
8461 return res;
8462
8463 return nl80211_get_link_noise(drv, si);
8464}
8465
8466
57ebba59
JJ		 8467static int wpa_driver_nl80211_shared_freq(void *priv)
8468{
8469 struct i802_bss *bss = priv;
8470 struct wpa_driver_nl80211_data *drv = bss->drv;
8471 struct wpa_driver_nl80211_data *driver;
8472 int freq = 0;
8473
8474 /*
8475 * If the same PHY is in connected state with some other interface,
8476 * then retrieve the assoc freq.
8477 */
8478 wpa_printf(MSG_DEBUG, "nl80211: Get shared freq for PHY %s",
8479 drv->phyname);
8480
8481 dl_list_for_each(driver, &drv->global->interfaces,
8482 struct wpa_driver_nl80211_data, list) {
8483 if (drv == driver ||
8484 os_strcmp(drv->phyname, driver->phyname) != 0 ||
8485 !driver->associated)
8486 continue;
8487
8488 wpa_printf(MSG_DEBUG, "nl80211: Found a match for PHY %s - %s "
8489 MACSTR,
8490 driver->phyname, driver->first_bss.ifname,
341eebee 8491 MAC2STR(driver->first_bss.addr));
d3bd0f05
JJ		 8492 if (is_ap_interface(driver->nlmode))
8493 freq = driver->first_bss.freq;
8494 else
8495 freq = nl80211_get_assoc_freq(driver);
57ebba59
JJ		 8496 wpa_printf(MSG_DEBUG, "nl80211: Shared freq for PHY %s: %d",
8497 drv->phyname, freq);
8498 }
8499
8500 if (!freq)
8501 wpa_printf(MSG_DEBUG, "nl80211: No shared interface for "
8502 "PHY (%s) in associated state", drv->phyname);
8503
8504 return freq;
8505}
8506
8507
b91ab76e
JM		 8508static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len,
8509 int encrypt)
8510{
8511 struct i802_bss *bss = priv;
55231068
JM		 8512 return wpa_driver_nl80211_send_frame(bss, data, data_len, encrypt, 0,
8513 0, 0, 0, 0);
b91ab76e
JM		 8514}
8515
8516
c55f774d
JM		 8517static int nl80211_set_param(void *priv, const char *param)
8518{
c55f774d
JM		 8519 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param);
8520 if (param == NULL)
8521 return 0;
8522
8523#ifdef CONFIG_P2P
8524 if (os_strstr(param, "use_p2p_group_interface=1")) {
482856c8
JM		 8525 struct i802_bss *bss = priv;
8526 struct wpa_driver_nl80211_data *drv = bss->drv;
8527
c55f774d
JM		 8528 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
8529 "interface");
8530 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
8531 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
8532 }
8533#endif /* CONFIG_P2P */
8534
8535 return 0;
8536}
8537
8538
f2ed8023
JM		 8539static void * nl80211_global_init(void)
8540{
8541 struct nl80211_global *global;
36d84860
BG		 8542 struct netlink_config *cfg;
8543
f2ed8023
JM		 8544 global = os_zalloc(sizeof(*global));
8545 if (global == NULL)
8546 return NULL;
c81eff1a 8547 global->ioctl_sock = -1;
f2ed8023 8548 dl_list_init(&global->interfaces);
ff6a158b 8549 global->if_add_ifindex = -1;
36d84860
BG		 8550
8551 cfg = os_zalloc(sizeof(*cfg));
8552 if (cfg == NULL)
8553 goto err;
8554
8555 cfg->ctx = global;
8556 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink;
8557 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink;
8558 global->netlink = netlink_init(cfg);
8559 if (global->netlink == NULL) {
8560 os_free(cfg);
8561 goto err;
8562 }
8563
2a7b66f5
BG		 8564 if (wpa_driver_nl80211_init_nl_global(global) < 0)
8565 goto err;
8566
c81eff1a
BG		 8567 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
8568 if (global->ioctl_sock < 0) {
8569 perror("socket(PF_INET,SOCK_DGRAM)");
8570 goto err;
8571 }
8572
f2ed8023 8573 return global;
36d84860
BG		 8574
8575err:
8576 nl80211_global_deinit(global);
8577 return NULL;
f2ed8023
JM		 8578}
8579
8580
8581static void nl80211_global_deinit(void *priv)
8582{
8583 struct nl80211_global *global = priv;
8584 if (global == NULL)
8585 return;
8586 if (!dl_list_empty(&global->interfaces)) {
8587 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at "
8588 "nl80211_global_deinit",
8589 dl_list_len(&global->interfaces));
8590 }
36d84860
BG		 8591
8592 if (global->netlink)
8593 netlink_deinit(global->netlink);
8594
276e2d67
BG		 8595 nl_destroy_handles(&global->nl);
8596
481234cf 8597 if (global->nl_event) {
d6c9aab8 8598 eloop_unregister_read_sock(
481234cf 8599 nl_socket_get_fd(global->nl_event));
d6c9aab8
JB		 8600 nl_destroy_handles(&global->nl_event);
8601 }
8602
8603 nl_cb_put(global->nl_cb);
2a7b66f5 8604
c81eff1a
BG		 8605 if (global->ioctl_sock >= 0)
8606 close(global->ioctl_sock);
8607
f2ed8023
JM		 8608 os_free(global);
8609}
8610
8611
6859f1cb
BG		 8612static const char * nl80211_get_radio_name(void *priv)
8613{
8614 struct i802_bss *bss = priv;
8615 struct wpa_driver_nl80211_data *drv = bss->drv;
8616 return drv->phyname;
8617}
8618
8619
a6efc65d
JM		 8620static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid,
8621 const u8 *pmkid)
8622{
8623 struct nl_msg *msg;
8624
8625 msg = nlmsg_alloc();
8626 if (!msg)
8627 return -ENOMEM;
8628
9fb04070 8629 nl80211_cmd(bss->drv, msg, 0, cmd);
a6efc65d
JM		 8630
8631 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
8632 if (pmkid)
8633 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid);
8634 if (bssid)
8635 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
8636
8637 return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
8638 nla_put_failure:
9e088e74 8639 nlmsg_free(msg);
a6efc65d
JM		 8640 return -ENOBUFS;
8641}
8642
8643
8644static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid)
8645{
8646 struct i802_bss *bss = priv;
8647 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid));
8648 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid);
8649}
8650
8651
8652static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid)
8653{
8654 struct i802_bss *bss = priv;
8655 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR,
8656 MAC2STR(bssid));
8657 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid);
8658}
8659
8660
8661static int nl80211_flush_pmkid(void *priv)
8662{
8663 struct i802_bss *bss = priv;
8664 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs");
8665 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL);
8666}
8667
8668
b14a210c
JB		 8669static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck,
8670 const u8 *replay_ctr)
8671{
8672 struct i802_bss *bss = priv;
8673 struct wpa_driver_nl80211_data *drv = bss->drv;
8674 struct nlattr *replay_nested;
8675 struct nl_msg *msg;
8676
8677 msg = nlmsg_alloc();
8678 if (!msg)
8679 return;
8680
9fb04070 8681 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
b14a210c
JB		 8682
8683 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
8684
8685 replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
8686 if (!replay_nested)
8687 goto nla_put_failure;
8688
8689 NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek);
8690 NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck);
8691 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN,
8692 replay_ctr);
8693
8694 nla_nest_end(msg, replay_nested);
8695
8696 send_and_recv_msgs(drv, msg, NULL, NULL);
8697 return;
8698 nla_put_failure:
8699 nlmsg_free(msg);
8700}
8701
8702
39718852
JB		 8703static void nl80211_send_null_frame(struct i802_bss *bss, const u8 *own_addr,
8704 const u8 *addr, int qos)
bcf24348 8705{
39718852
JB		 8706 /* send data frame to poll STA and check whether
8707 * this frame is ACKed */
bcf24348
JB		 8708 struct {
8709 struct ieee80211_hdr hdr;
8710 u16 qos_ctl;
8711 } STRUCT_PACKED nulldata;
8712 size_t size;
8713
8714 /* Send data frame to poll STA and check whether this frame is ACKed */
8715
8716 os_memset(&nulldata, 0, sizeof(nulldata));
8717
8718 if (qos) {
8719 nulldata.hdr.frame_control =
8720 IEEE80211_FC(WLAN_FC_TYPE_DATA,
8721 WLAN_FC_STYPE_QOS_NULL);
8722 size = sizeof(nulldata);
8723 } else {
8724 nulldata.hdr.frame_control =
8725 IEEE80211_FC(WLAN_FC_TYPE_DATA,
8726 WLAN_FC_STYPE_NULLFUNC);
8727 size = sizeof(struct ieee80211_hdr);
8728 }
8729
8730 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS);
8731 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN);
8732 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
8733 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
8734
8cfa3527 8735 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size, 0) < 0)
bcf24348
JB		 8736 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to "
8737 "send poll frame");
8738}
8739
39718852
JB		 8740static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr,
8741 int qos)
8742{
8743 struct i802_bss *bss = priv;
8744 struct wpa_driver_nl80211_data *drv = bss->drv;
8745 struct nl_msg *msg;
8746
8747 if (!drv->poll_command_supported) {
8748 nl80211_send_null_frame(bss, own_addr, addr, qos);
8749 return;
8750 }
8751
8752 msg = nlmsg_alloc();
8753 if (!msg)
8754 return;
8755
8756 nl80211_cmd(drv, msg, 0, NL80211_CMD_PROBE_CLIENT);
8757
8758 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
8759 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
8760
8761 send_and_recv_msgs(drv, msg, NULL, NULL);
8762 return;
8763 nla_put_failure:
8764 nlmsg_free(msg);
8765}
8766
bcf24348 8767
29f338af
JM		 8768static int nl80211_set_power_save(struct i802_bss *bss, int enabled)
8769{
8770 struct nl_msg *msg;
8771
8772 msg = nlmsg_alloc();
8773 if (!msg)
8774 return -ENOMEM;
8775
8776 nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_SET_POWER_SAVE);
8777 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
8778 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE,
8779 enabled ? NL80211_PS_ENABLED : NL80211_PS_DISABLED);
8780 return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
8781nla_put_failure:
8782 nlmsg_free(msg);
8783 return -ENOBUFS;
8784}
8785
8786
8787static int nl80211_set_p2p_powersave(void *priv, int legacy_ps, int opp_ps,
8788 int ctwindow)
8789{
8790 struct i802_bss *bss = priv;
8791
8792 wpa_printf(MSG_DEBUG, "nl80211: set_p2p_powersave (legacy_ps=%d "
8793 "opp_ps=%d ctwindow=%d)", legacy_ps, opp_ps, ctwindow);
8794
8795 if (opp_ps != -1 || ctwindow != -1)
8796 return -1; /* Not yet supported */
8797
8798 if (legacy_ps == -1)
8799 return 0;
8800 if (legacy_ps != 0 && legacy_ps != 1)
8801 return -1; /* Not yet supported */
8802
8803 return nl80211_set_power_save(bss, legacy_ps);
8804}
8805
8806
03ea1786
AN		 8807#ifdef CONFIG_TDLS
8808
8809static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code,
8810 u8 dialog_token, u16 status_code,
8811 const u8 *buf, size_t len)
8812{
8813 struct i802_bss *bss = priv;
8814 struct wpa_driver_nl80211_data *drv = bss->drv;
8815 struct nl_msg *msg;
8816
8817 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
8818 return -EOPNOTSUPP;
8819
8820 if (!dst)
8821 return -EINVAL;
8822
8823 msg = nlmsg_alloc();
8824 if (!msg)
8825 return -ENOMEM;
8826
8827 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_MGMT);
8828 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8829 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
8830 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_ACTION, action_code);
8831 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_DIALOG_TOKEN, dialog_token);
8832 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status_code);
8833 NLA_PUT(msg, NL80211_ATTR_IE, len, buf);
8834
8835 return send_and_recv_msgs(drv, msg, NULL, NULL);
8836
8837nla_put_failure:
8838 nlmsg_free(msg);
8839 return -ENOBUFS;
8840}
8841
8842
8843static int nl80211_tdls_oper(void *priv, enum tdls_oper oper, const u8 *peer)
8844{
8845 struct i802_bss *bss = priv;
8846 struct wpa_driver_nl80211_data *drv = bss->drv;
8847 struct nl_msg *msg;
8848 enum nl80211_tdls_operation nl80211_oper;
8849
8850 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_TDLS_SUPPORT))
8851 return -EOPNOTSUPP;
8852
8853 switch (oper) {
8854 case TDLS_DISCOVERY_REQ:
8855 nl80211_oper = NL80211_TDLS_DISCOVERY_REQ;
8856 break;
8857 case TDLS_SETUP:
8858 nl80211_oper = NL80211_TDLS_SETUP;
8859 break;
8860 case TDLS_TEARDOWN:
8861 nl80211_oper = NL80211_TDLS_TEARDOWN;
8862 break;
8863 case TDLS_ENABLE_LINK:
8864 nl80211_oper = NL80211_TDLS_ENABLE_LINK;
8865 break;
8866 case TDLS_DISABLE_LINK:
8867 nl80211_oper = NL80211_TDLS_DISABLE_LINK;
8868 break;
8869 case TDLS_ENABLE:
8870 return 0;
8871 case TDLS_DISABLE:
8872 return 0;
8873 default:
8874 return -EINVAL;
8875 }
8876
8877 msg = nlmsg_alloc();
8878 if (!msg)
8879 return -ENOMEM;
8880
8881 nl80211_cmd(drv, msg, 0, NL80211_CMD_TDLS_OPER);
8882 NLA_PUT_U8(msg, NL80211_ATTR_TDLS_OPERATION, nl80211_oper);
8883 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
8884 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
8885
8886 return send_and_recv_msgs(drv, msg, NULL, NULL);
8887
8888nla_put_failure:
8889 nlmsg_free(msg);
8890 return -ENOBUFS;
8891}
8892
8893#endif /* CONFIG TDLS */
8894
8895
216eede8
DS		 8896#ifdef ANDROID
8897
8898typedef struct android_wifi_priv_cmd {
8899 char *buf;
8900 int used_len;
8901 int total_len;
8902} android_wifi_priv_cmd;
8903
8904static int drv_errors = 0;
8905
8906static void wpa_driver_send_hang_msg(struct wpa_driver_nl80211_data *drv)
8907{
8908 drv_errors++;
8909 if (drv_errors > DRV_NUMBER_SEQUENTIAL_ERRORS) {
8910 drv_errors = 0;
8911 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "HANGED");
8912 }
8913}
8914
8915
8916static int android_priv_cmd(struct i802_bss *bss, const char *cmd)
8917{
8918 struct wpa_driver_nl80211_data *drv = bss->drv;
8919 struct ifreq ifr;
8920 android_wifi_priv_cmd priv_cmd;
8921 char buf[MAX_DRV_CMD_SIZE];
8922 int ret;
8923
8924 os_memset(&ifr, 0, sizeof(ifr));
8925 os_memset(&priv_cmd, 0, sizeof(priv_cmd));
8926 os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ);
8927
8928 os_memset(buf, 0, sizeof(buf));
8929 os_strlcpy(buf, cmd, sizeof(buf));
8930
8931 priv_cmd.buf = buf;
8932 priv_cmd.used_len = sizeof(buf);
8933 priv_cmd.total_len = sizeof(buf);
8934 ifr.ifr_data = &priv_cmd;
8935
8936 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr);
8937 if (ret < 0) {
8938 wpa_printf(MSG_ERROR, "%s: failed to issue private commands",
8939 __func__);
8940 wpa_driver_send_hang_msg(drv);
8941 return ret;
8942 }
8943
8944 drv_errors = 0;
8945 return 0;
8946}
8947
8948
8949static int android_pno_start(struct i802_bss *bss,
8950 struct wpa_driver_scan_params *params)
8951{
8952 struct wpa_driver_nl80211_data *drv = bss->drv;
8953 struct ifreq ifr;
8954 android_wifi_priv_cmd priv_cmd;
8955 int ret = 0, i = 0, bp;
8956 char buf[WEXT_PNO_MAX_COMMAND_SIZE];
8957
8958 bp = WEXT_PNOSETUP_HEADER_SIZE;
8959 os_memcpy(buf, WEXT_PNOSETUP_HEADER, bp);
8960 buf[bp++] = WEXT_PNO_TLV_PREFIX;
8961 buf[bp++] = WEXT_PNO_TLV_VERSION;
8962 buf[bp++] = WEXT_PNO_TLV_SUBVERSION;
8963 buf[bp++] = WEXT_PNO_TLV_RESERVED;
8964
8965 while (i < WEXT_PNO_AMOUNT && (size_t) i < params->num_ssids) {
8966 /* Check that there is enough space needed for 1 more SSID, the
8967 * other sections and null termination */
8968 if ((bp + WEXT_PNO_SSID_HEADER_SIZE + MAX_SSID_LEN +
8969 WEXT_PNO_NONSSID_SECTIONS_SIZE + 1) >= (int) sizeof(buf))
8970 break;
8971 wpa_hexdump_ascii(MSG_DEBUG, "For PNO Scan",
a97bde0a
JM		 8972 params->ssids[i].ssid,
8973 params->ssids[i].ssid_len);
216eede8
DS		 8974 buf[bp++] = WEXT_PNO_SSID_SECTION;
8975 buf[bp++] = params->ssids[i].ssid_len;
8976 os_memcpy(&buf[bp], params->ssids[i].ssid,
8977 params->ssids[i].ssid_len);
8978 bp += params->ssids[i].ssid_len;
8979 i++;
8980 }
8981
8982 buf[bp++] = WEXT_PNO_SCAN_INTERVAL_SECTION;
8983 os_snprintf(&buf[bp], WEXT_PNO_SCAN_INTERVAL_LENGTH + 1, "%x",
8984 WEXT_PNO_SCAN_INTERVAL);
8985 bp += WEXT_PNO_SCAN_INTERVAL_LENGTH;
8986
8987 buf[bp++] = WEXT_PNO_REPEAT_SECTION;
8988 os_snprintf(&buf[bp], WEXT_PNO_REPEAT_LENGTH + 1, "%x",
8989 WEXT_PNO_REPEAT);
8990 bp += WEXT_PNO_REPEAT_LENGTH;
8991
8992 buf[bp++] = WEXT_PNO_MAX_REPEAT_SECTION;
8993 os_snprintf(&buf[bp], WEXT_PNO_MAX_REPEAT_LENGTH + 1, "%x",
8994 WEXT_PNO_MAX_REPEAT);
8995 bp += WEXT_PNO_MAX_REPEAT_LENGTH + 1;
8996
8997 memset(&ifr, 0, sizeof(ifr));
8998 memset(&priv_cmd, 0, sizeof(priv_cmd));
8999 os_strncpy(ifr.ifr_name, bss->ifname, IFNAMSIZ);
9000
9001 priv_cmd.buf = buf;
9002 priv_cmd.used_len = bp;
9003 priv_cmd.total_len = bp;
9004 ifr.ifr_data = &priv_cmd;
9005
9006 ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr);
9007
9008 if (ret < 0) {
9009 wpa_printf(MSG_ERROR, "ioctl[SIOCSIWPRIV] (pnosetup): %d",
9010 ret);
9011 wpa_driver_send_hang_msg(drv);
9012 return ret;
9013 }
9014
9015 drv_errors = 0;
9016
9017 return android_priv_cmd(bss, "PNOFORCE 1");
9018}
9019
9020
9021static int android_pno_stop(struct i802_bss *bss)
9022{
9023 return android_priv_cmd(bss, "PNOFORCE 0");
9024}
9025
9026#endif /* ANDROID */
9027
9028
3f5285e8
JM		 9029const struct wpa_driver_ops wpa_driver_nl80211_ops = {
9030 .name = "nl80211",
9031 .desc = "Linux nl80211/cfg80211",
9032 .get_bssid = wpa_driver_nl80211_get_bssid,
9033 .get_ssid = wpa_driver_nl80211_get_ssid,
3f5285e8 9034 .set_key = wpa_driver_nl80211_set_key,
6a1063e0 9035 .scan2 = wpa_driver_nl80211_scan,
d21c63b9
LC		 9036 .sched_scan = wpa_driver_nl80211_sched_scan,
9037 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan,
3f5285e8
JM		 9038 .get_scan_results2 = wpa_driver_nl80211_get_scan_results,
9039 .deauthenticate = wpa_driver_nl80211_deauthenticate,
9040 .disassociate = wpa_driver_nl80211_disassociate,
c2a04078 9041 .authenticate = wpa_driver_nl80211_authenticate,
3f5285e8 9042 .associate = wpa_driver_nl80211_associate,
f2ed8023
JM		 9043 .global_init = nl80211_global_init,
9044 .global_deinit = nl80211_global_deinit,
9045 .init2 = wpa_driver_nl80211_init,
3f5285e8 9046 .deinit = wpa_driver_nl80211_deinit,
3f5285e8
JM		 9047 .get_capa = wpa_driver_nl80211_get_capa,
9048 .set_operstate = wpa_driver_nl80211_set_operstate,
01652550 9049 .set_supp_port = wpa_driver_nl80211_set_supp_port,
6d158490 9050 .set_country = wpa_driver_nl80211_set_country,
19c3b566 9051 .set_ap = wpa_driver_nl80211_set_ap,
22a7c9d7
JM		 9052 .if_add = wpa_driver_nl80211_if_add,
9053 .if_remove = wpa_driver_nl80211_if_remove,
071f8ac4 9054 .send_mlme = wpa_driver_nl80211_send_mlme,
c3965310 9055 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data,
0f4e8b4f
JM		 9056 .sta_add = wpa_driver_nl80211_sta_add,
9057 .sta_remove = wpa_driver_nl80211_sta_remove,
db149ac9 9058 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol,
a8d6ffa4 9059 .sta_set_flags = wpa_driver_nl80211_sta_set_flags,
c5121837
JM		 9060#ifdef HOSTAPD
9061 .hapd_init = i802_init,
c5121837 9062 .hapd_deinit = i802_deinit,
f7b3920c
JM		 9063 .set_wds_sta = i802_set_wds_sta,
9064#endif /* HOSTAPD */
9065#if defined(HOSTAPD) || defined(CONFIG_AP)
c5121837
JM		 9066 .get_seqnum = i802_get_seqnum,
9067 .flush = i802_flush,
9068 .read_sta_data = i802_read_sta_data,
c5121837
JM		 9069 .get_inact_sec = i802_get_inact_sec,
9070 .sta_clear_stats = i802_sta_clear_stats,
c5121837
JM		 9071 .set_rts = i802_set_rts,
9072 .set_frag = i802_set_frag,
c5121837 9073 .set_tx_queue_params = i802_set_tx_queue_params,
c5121837 9074 .set_sta_vlan = i802_set_sta_vlan,
ee7ab173
JB		 9075 .sta_deauth = i802_sta_deauth,
9076 .sta_disassoc = i802_sta_disassoc,
9077#endif /* HOSTAPD || CONFIG_AP */
e3802622 9078 .set_freq = i802_set_freq,
58f6fbe0 9079 .send_action = wpa_driver_nl80211_send_action,
5dfca53f 9080 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait,
55777702
JM		 9081 .remain_on_channel = wpa_driver_nl80211_remain_on_channel,
9082 .cancel_remain_on_channel =
9083 wpa_driver_nl80211_cancel_remain_on_channel,
504e905c 9084 .probe_req_report = wpa_driver_nl80211_probe_req_report,
af473088 9085 .deinit_ap = wpa_driver_nl80211_deinit_ap,
3c29244e 9086 .deinit_p2p_cli = wpa_driver_nl80211_deinit_p2p_cli,
207ef3fb 9087 .resume = wpa_driver_nl80211_resume,
7b90c16a 9088 .send_ft_action = nl80211_send_ft_action,
b625473c 9089 .signal_monitor = nl80211_signal_monitor,
1c5c7273 9090 .signal_poll = nl80211_signal_poll,
b91ab76e 9091 .send_frame = nl80211_send_frame,
57ebba59 9092 .shared_freq = wpa_driver_nl80211_shared_freq,
c55f774d 9093 .set_param = nl80211_set_param,
6859f1cb 9094 .get_radio_name = nl80211_get_radio_name,
a6efc65d
JM		 9095 .add_pmkid = nl80211_add_pmkid,
9096 .remove_pmkid = nl80211_remove_pmkid,
9097 .flush_pmkid = nl80211_flush_pmkid,
b14a210c 9098 .set_rekey_info = nl80211_set_rekey_info,
bcf24348 9099 .poll_client = nl80211_poll_client,
29f338af 9100 .set_p2p_powersave = nl80211_set_p2p_powersave,
03ea1786
AN		 9101#ifdef CONFIG_TDLS
9102 .send_tdls_mgmt = nl80211_send_tdls_mgmt,
9103 .tdls_oper = nl80211_tdls_oper,
9104#endif /* CONFIG_TDLS */
3f5285e8 9105};
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