]> git.ipfire.org Git - thirdparty/hostap.git/blame - src/drivers/driver_nl80211.c
projects / thirdparty / hostap.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Postpone global_init() call until first driver instance is initialized
[thirdparty/hostap.git] / src / drivers / driver_nl80211.c
CommitLineData
3f5285e8 1/*
c5121837 2 * Driver interaction with Linux nl80211/cfg80211
8d923a4a 3 * Copyright (c) 2002-2010, 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
JM		 8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 *
13 * Alternatively, this software may be distributed under the terms of BSD
14 * license.
15 *
16 * See README and COPYING for more details.
17 */
18
19#include "includes.h"
20#include <sys/ioctl.h>
6859f1cb
BG		 21#include <sys/types.h>
22#include <sys/stat.h>
23#include <fcntl.h>
37b7d082 24#include <net/if.h>
3f5285e8
JM		 25#include <netlink/genl/genl.h>
26#include <netlink/genl/family.h>
27#include <netlink/genl/ctrl.h>
8602b0f2 28#include <linux/rtnetlink.h>
1b648c7e
JM		 29#include <netpacket/packet.h>
30#include <linux/filter.h>
7e45830a 31#include "nl80211_copy.h"
625f587b 32
3f5285e8 33#include "common.h"
1b648c7e 34#include "eloop.h"
f2ed8023 35#include "utils/list.h"
1b648c7e 36#include "common/ieee802_11_defs.h"
9b90955e 37#include "common/ieee802_11_common.h"
f10bfc9a 38#include "l2_packet/l2_packet.h"
e2d02c29 39#include "netlink.h"
34f2f814 40#include "linux_ioctl.h"
e2d02c29
JM		 41#include "radiotap.h"
42#include "radiotap_iter.h"
8401a6b0 43#include "rfkill.h"
1b648c7e 44#include "driver.h"
0915d02c 45
c5121837
JM		 46#ifdef CONFIG_LIBNL20
47/* libnl 2.0 compatibility code */
2e8eac2d 48#define nl_handle nl_sock
a65a9aed
JB		 49#define nl80211_handle_alloc nl_socket_alloc_cb
50#define nl80211_handle_destroy nl_socket_free
51#else
52/*
53 * libnl 1.1 has a bug, it tries to allocate socket numbers densely
54 * but when you free a socket again it will mess up its bitmap and
55 * and use the wrong number the next time it needs a socket ID.
56 * Therefore, we wrap the handle alloc/destroy and add our own pid
57 * accounting.
58 */
59static uint32_t port_bitmap[32] = { 0 };
60
61static struct nl_handle *nl80211_handle_alloc(void *cb)
62{
63 struct nl_handle *handle;
64 uint32_t pid = getpid() & 0x3FFFFF;
65 int i;
66
67 handle = nl_handle_alloc_cb(cb);
68
69 for (i = 0; i < 1024; i++) {
70 if (port_bitmap[i / 32] & (1 << (i % 32)))
71 continue;
72 port_bitmap[i / 32] |= 1 << (i % 32);
73 pid += i << 22;
74 break;
75 }
76
77 nl_socket_set_local_port(handle, pid);
78
79 return handle;
80}
81
82static void nl80211_handle_destroy(struct nl_handle *handle)
83{
84 uint32_t port = nl_socket_get_local_port(handle);
85
86 port >>= 22;
87 port_bitmap[port / 32] &= ~(1 << (port % 32));
88
89 nl_handle_destroy(handle);
90}
40442f5b
JB		 91
92static inline int __genl_ctrl_alloc_cache(struct nl_handle *h,
93 struct nl_cache **cache)
94{
95 struct nl_cache *tmp = genl_ctrl_alloc_cache(h);
96 if (!tmp)
97 return -ENOMEM;
98 *cache = tmp;
99 return 0;
100}
101#define genl_ctrl_alloc_cache __genl_ctrl_alloc_cache
c5121837
JM		 102#endif /* CONFIG_LIBNL20 */
103
c5121837 104
a92dfde8
JB		 105struct nl80211_handles {
106 struct nl_handle *handle;
107 struct nl_cache *cache;
108};
109
110
111static int nl_create_handles(struct nl80211_handles *handles, struct nl_cb *cb,
112 const char *dbg)
113{
114 if (!handles)
115 return -1;
116
117 handles->handle = nl80211_handle_alloc(cb);
118 if (handles->handle == NULL) {
119 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
120 "callbacks (%s)", dbg);
121 return -1;
122 }
123
124 if (genl_connect(handles->handle)) {
125 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
126 "netlink (%s)", dbg);
127 goto err;
128 }
129
130 if (genl_ctrl_alloc_cache(handles->handle, &handles->cache) < 0) {
131 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
132 "netlink cache (%s)", dbg);
133 goto err;
134 }
135
136 return 0;
137err:
138 nl80211_handle_destroy(handles->handle);
139 return -1;
140}
141
142
143static void nl_destroy_handles(struct nl80211_handles *handles)
144{
145 if (handles->handle == NULL)
146 return;
147 nl_cache_free(handles->cache);
148 nl80211_handle_destroy(handles->handle);
149 handles->handle = NULL;
150}
151
152
3f5285e8
JM		 153#ifndef IFF_LOWER_UP
154#define IFF_LOWER_UP 0x10000 /* driver signals L1 up */
155#endif
156#ifndef IFF_DORMANT
157#define IFF_DORMANT 0x20000 /* driver signals dormant */
158#endif
159
160#ifndef IF_OPER_DORMANT
161#define IF_OPER_DORMANT 5
162#endif
163#ifndef IF_OPER_UP
164#define IF_OPER_UP 6
165#endif
166
f2ed8023
JM		 167struct nl80211_global {
168 struct dl_list interfaces;
ff6a158b 169 int if_add_ifindex;
36d84860 170 struct netlink_data *netlink;
2a7b66f5 171 struct nl_cb *nl_cb;
276e2d67
BG		 172 struct nl80211_handles nl;
173 struct genl_family *nl80211;
c81eff1a 174 int ioctl_sock; /* socket for ioctl() use */
f2ed8023
JM		 175};
176
36d84860 177static void nl80211_global_deinit(void *priv);
dac12351 178static void wpa_driver_nl80211_deinit(void *priv);
36d84860 179
c5121837 180struct i802_bss {
a2e40bb6 181 struct wpa_driver_nl80211_data *drv;
c5121837 182 struct i802_bss *next;
b4fd6fab 183 int ifindex;
a2e40bb6 184 char ifname[IFNAMSIZ + 1];
e17a2477 185 char brname[IFNAMSIZ];
c5121837 186 unsigned int beacon_set:1;
e17a2477
JM		 187 unsigned int added_if_into_bridge:1;
188 unsigned int added_bridge:1;
c5121837 189};
3f5285e8
JM		 190
191struct wpa_driver_nl80211_data {
f2ed8023
JM		 192 struct nl80211_global *global;
193 struct dl_list list;
194 u8 addr[ETH_ALEN];
6859f1cb 195 char phyname[32];
3f5285e8 196 void *ctx;
3f5285e8 197 int ifindex;
7524cfb1 198 int if_removed;
a63063b4 199 int if_disabled;
7d9c3698 200 int ignore_if_down_event;
8401a6b0 201 struct rfkill_data *rfkill;
c2a04078
JM		 202 struct wpa_driver_capa capa;
203 int has_capability;
c2a04078 204
3f5285e8
JM		 205 int operstate;
206
3f5285e8
JM		 207 int scan_complete_events;
208
276e2d67 209 struct nl80211_handles nl_event, nl_preq;
1c873584 210
e6b8efeb 211 u8 auth_bssid[ETH_ALEN];
c2a04078
JM		 212 u8 bssid[ETH_ALEN];
213 int associated;
fd05d64e
JM		 214 u8 ssid[32];
215 size_t ssid_len;
b1f625e0
EP		 216 enum nl80211_iftype nlmode;
217 enum nl80211_iftype ap_scan_as_station;
4832ecd7 218 unsigned int assoc_freq;
d2440ba0 219
0915d02c
JM		 220 int monitor_sock;
221 int monitor_ifidx;
866af8b6 222 int no_monitor_iface_capab;
4e5cb1a3 223 int disable_11b_rates;
7da3abe7 224
55777702 225 unsigned int pending_remain_on_chan:1;
dac12351 226 unsigned int in_interface_list:1;
55777702
JM		 227
228 u64 remain_on_chan_cookie;
58f6fbe0 229 u64 send_action_cookie;
c5121837 230
5582a5d1 231 unsigned int last_mgmt_freq;
86957e62 232 unsigned int ap_oper_freq;
5582a5d1 233
3812464c
JM		 234 struct wpa_driver_scan_filter *filter_ssids;
235 size_t num_filter_ssids;
236
a2e40bb6
FF		 237 struct i802_bss first_bss;
238
f10bfc9a
JM		 239#ifdef CONFIG_AP
240 struct l2_packet_data *l2;
241#endif /* CONFIG_AP */
242
c5121837 243#ifdef HOSTAPD
c5121837 244 int eapol_sock; /* socket for EAPOL frames */
c5121837
JM		 245
246 int default_if_indices[16];
247 int *if_indices;
248 int num_if_indices;
249
c5121837
JM		 250 int last_freq;
251 int last_freq_ht;
c5121837 252#endif /* HOSTAPD */
3f5285e8
JM		 253};
254
255
256static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx,
257 void *timeout_ctx);
b1f625e0
EP		 258static int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
259 enum nl80211_iftype nlmode);
362f781e 260static int
7524cfb1 261wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv);
d72aad94 262static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
77339912
JM		 263 const u8 *addr, int cmd, u16 reason_code,
264 int local_state_change);
460456f8
JM		 265static void nl80211_remove_monitor_interface(
266 struct wpa_driver_nl80211_data *drv);
5582a5d1 267static int nl80211_send_frame_cmd(struct wpa_driver_nl80211_data *drv,
5dfca53f
JB		 268 unsigned int freq, unsigned int wait,
269 const u8 *buf, size_t buf_len, u64 *cookie);
5582a5d1 270static int wpa_driver_nl80211_probe_req_report(void *priv, int report);
0915d02c 271
072ad14c 272#ifdef HOSTAPD
2135f224
JM		 273static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
274static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
97cfcf64 275static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
fbbfcbac
FF		 276static int wpa_driver_nl80211_if_remove(void *priv,
277 enum wpa_driver_if_type type,
278 const char *ifname);
37eb8da9 279#else /* HOSTAPD */
bd2df892
JM		 280static inline void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
281{
282}
283
284static inline void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
285{
286}
287
288static inline int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
37eb8da9
JM		 289{
290 return 0;
291}
072ad14c
JM		 292#endif /* HOSTAPD */
293
e3802622 294static int i802_set_freq(void *priv, struct hostapd_freq_params *freq);
4e5cb1a3
JM		 295static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
296 int ifindex, int disabled);
504e905c 297
21bdbe38
JM		 298static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv);
299
3f5285e8 300
b1f625e0
EP		 301static int is_ap_interface(enum nl80211_iftype nlmode)
302{
303 return (nlmode == NL80211_IFTYPE_AP ||
304 nlmode == NL80211_IFTYPE_P2P_GO);
305}
306
307
308static int is_sta_interface(enum nl80211_iftype nlmode)
309{
310 return (nlmode == NL80211_IFTYPE_STATION ||
311 nlmode == NL80211_IFTYPE_P2P_CLIENT);
312}
313
314
f5a8d422
JM		 315struct nl80211_bss_info_arg {
316 struct wpa_driver_nl80211_data *drv;
317 struct wpa_scan_results *res;
318 unsigned int assoc_freq;
20f5a4c2 319 u8 assoc_bssid[ETH_ALEN];
f5a8d422
JM		 320};
321
322static int bss_info_handler(struct nl_msg *msg, void *arg);
323
324
6241fcb1
JM		 325/* nl80211 code */
326static int ack_handler(struct nl_msg *msg, void *arg)
327{
328 int *err = arg;
329 *err = 0;
330 return NL_STOP;
331}
332
333static int finish_handler(struct nl_msg *msg, void *arg)
334{
8e8df255
JM		 335 int *ret = arg;
336 *ret = 0;
6241fcb1
JM		 337 return NL_SKIP;
338}
339
340static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err,
341 void *arg)
342{
343 int *ret = arg;
344 *ret = err->error;
345 return NL_SKIP;
346}
347
5b7b85f6
JM		 348
349static int no_seq_check(struct nl_msg *msg, void *arg)
350{
351 return NL_OK;
352}
353
354
58f6fbe0
JM		 355static int send_and_recv(struct wpa_driver_nl80211_data *drv,
356 struct nl_handle *nl_handle, struct nl_msg *msg,
357 int (*valid_handler)(struct nl_msg *, void *),
358 void *valid_data)
6241fcb1
JM		 359{
360 struct nl_cb *cb;
361 int err = -ENOMEM;
362
2a7b66f5 363 cb = nl_cb_clone(drv->global->nl_cb);
6241fcb1
JM		 364 if (!cb)
365 goto out;
366
58f6fbe0 367 err = nl_send_auto_complete(nl_handle, msg);
6241fcb1
JM		 368 if (err < 0)
369 goto out;
370
371 err = 1;
372
373 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
8e8df255 374 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
6241fcb1
JM		 375 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
376
377 if (valid_handler)
378 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM,
379 valid_handler, valid_data);
380
381 while (err > 0)
58f6fbe0 382 nl_recvmsgs(nl_handle, cb);
6241fcb1
JM		 383 out:
384 nl_cb_put(cb);
385 nlmsg_free(msg);
386 return err;
387}
388
389
58f6fbe0
JM		 390static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv,
391 struct nl_msg *msg,
392 int (*valid_handler)(struct nl_msg *, void *),
393 void *valid_data)
394{
276e2d67 395 return send_and_recv(drv, drv->global->nl.handle, msg, valid_handler,
58f6fbe0
JM		 396 valid_data);
397}
398
399
97865538
JM		 400struct family_data {
401 const char *group;
402 int id;
403};
404
405
406static int family_handler(struct nl_msg *msg, void *arg)
407{
408 struct family_data *res = arg;
409 struct nlattr *tb[CTRL_ATTR_MAX + 1];
410 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
411 struct nlattr *mcgrp;
412 int i;
413
414 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
415 genlmsg_attrlen(gnlh, 0), NULL);
416 if (!tb[CTRL_ATTR_MCAST_GROUPS])
417 return NL_SKIP;
418
419 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) {
420 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1];
421 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp),
422 nla_len(mcgrp), NULL);
423 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] ||
424 !tb2[CTRL_ATTR_MCAST_GRP_ID] ||
425 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]),
426 res->group,
427 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0)
428 continue;
429 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]);
430 break;
431 };
432
433 return NL_SKIP;
434}
435
436
437static int nl_get_multicast_id(struct wpa_driver_nl80211_data *drv,
438 const char *family, const char *group)
439{
440 struct nl_msg *msg;
441 int ret = -1;
442 struct family_data res = { group, -ENOENT };
443
444 msg = nlmsg_alloc();
445 if (!msg)
446 return -ENOMEM;
276e2d67
BG		 447 genlmsg_put(msg, 0, 0,
448 genl_ctrl_resolve(drv->global->nl.handle, "nlctrl"),
97865538
JM		 449 0, 0, CTRL_CMD_GETFAMILY, 0);
450 NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family);
451
452 ret = send_and_recv_msgs(drv, msg, family_handler, &res);
453 msg = NULL;
454 if (ret == 0)
455 ret = res.id;
456
457nla_put_failure:
458 nlmsg_free(msg);
459 return ret;
460}
461
462
9fb04070
JM		 463static void * nl80211_cmd(struct wpa_driver_nl80211_data *drv,
464 struct nl_msg *msg, int flags, uint8_t cmd)
465{
276e2d67
BG		 466 return genlmsg_put(msg, 0, 0, genl_family_get_id(drv->global->nl80211),
467 0, flags, cmd, 0);
9fb04070
JM		 468}
469
470
3f5285e8
JM		 471static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid)
472{
a2e40bb6
FF		 473 struct i802_bss *bss = priv;
474 struct wpa_driver_nl80211_data *drv = bss->drv;
c2a04078
JM		 475 if (!drv->associated)
476 return -1;
477 os_memcpy(bssid, drv->bssid, ETH_ALEN);
478 return 0;
3f5285e8
JM		 479}
480
481
3f5285e8
JM		 482static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid)
483{
a2e40bb6
FF		 484 struct i802_bss *bss = priv;
485 struct wpa_driver_nl80211_data *drv = bss->drv;
fd05d64e
JM		 486 if (!drv->associated)
487 return -1;
488 os_memcpy(ssid, drv->ssid, drv->ssid_len);
489 return drv->ssid_len;
3f5285e8
JM		 490}
491
492
7524cfb1 493static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv,
08063178 494 char *buf, size_t len, int del)
3f5285e8
JM		 495{
496 union wpa_event_data event;
497
498 os_memset(&event, 0, sizeof(event));
499 if (len > sizeof(event.interface_status.ifname))
500 len = sizeof(event.interface_status.ifname) - 1;
501 os_memcpy(event.interface_status.ifname, buf, len);
502 event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED :
503 EVENT_INTERFACE_ADDED;
504
505 wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s",
506 del ? "DEL" : "NEW",
507 event.interface_status.ifname,
508 del ? "removed" : "added");
509
a2e40bb6 510 if (os_strcmp(drv->first_bss.ifname, event.interface_status.ifname) == 0) {
7524cfb1
JM		 511 if (del)
512 drv->if_removed = 1;
513 else
514 drv->if_removed = 0;
515 }
516
08063178 517 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event);
3f5285e8
JM		 518}
519
520
7524cfb1 521static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv,
62d680c3 522 u8 *buf, size_t len)
7524cfb1 523{
62d680c3 524 int attrlen, rta_len;
7524cfb1
JM		 525 struct rtattr *attr;
526
62d680c3
JM		 527 attrlen = len;
528 attr = (struct rtattr *) buf;
7524cfb1
JM		 529
530 rta_len = RTA_ALIGN(sizeof(struct rtattr));
531 while (RTA_OK(attr, attrlen)) {
532 if (attr->rta_type == IFLA_IFNAME) {
a2e40bb6 533 if (os_strcmp(((char *) attr) + rta_len, drv->first_bss.ifname)
7524cfb1
JM		 534 == 0)
535 return 1;
536 else
537 break;
538 }
539 attr = RTA_NEXT(attr, attrlen);
540 }
541
542 return 0;
543}
544
545
546static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv,
62d680c3 547 int ifindex, u8 *buf, size_t len)
7524cfb1
JM		 548{
549 if (drv->ifindex == ifindex)
550 return 1;
551
62d680c3 552 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) {
a2e40bb6 553 drv->first_bss.ifindex = if_nametoindex(drv->first_bss.ifname);
7524cfb1
JM		 554 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed "
555 "interface");
556 wpa_driver_nl80211_finish_drv_init(drv);
557 return 1;
558 }
559
560 return 0;
561}
562
563
36d84860
BG		 564static struct wpa_driver_nl80211_data *
565nl80211_find_drv(struct nl80211_global *global, int idx, u8 *buf, size_t len)
566{
567 struct wpa_driver_nl80211_data *drv;
568 dl_list_for_each(drv, &global->interfaces,
569 struct wpa_driver_nl80211_data, list) {
570 if (wpa_driver_nl80211_own_ifindex(drv, idx, buf, len) ||
571 have_ifidx(drv, idx))
572 return drv;
573 }
574 return NULL;
575}
576
577
62d680c3
JM		 578static void wpa_driver_nl80211_event_rtm_newlink(void *ctx,
579 struct ifinfomsg *ifi,
580 u8 *buf, size_t len)
3f5285e8 581{
36d84860
BG		 582 struct nl80211_global *global = ctx;
583 struct wpa_driver_nl80211_data *drv;
62d680c3
JM		 584 int attrlen, rta_len;
585 struct rtattr *attr;
97cfcf64 586 u32 brid = 0;
3f5285e8 587
36d84860
BG		 588 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len);
589 if (!drv) {
97cfcf64
B		 590 wpa_printf(MSG_DEBUG, "nl80211: Ignore event for foreign "
591 "ifindex %d", ifi->ifi_index);
3f5285e8
JM		 592 return;
593 }
594
595 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x "
596 "(%s%s%s%s)",
597 drv->operstate, ifi->ifi_flags,
598 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "",
599 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "",
600 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "",
601 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : "");
a63063b4
JM		 602
603 if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) {
604 wpa_printf(MSG_DEBUG, "nl80211: Interface down");
7d9c3698
JM		 605 if (drv->ignore_if_down_event) {
606 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down "
607 "event generated by mode change");
608 drv->ignore_if_down_event = 0;
609 } else {
610 drv->if_disabled = 1;
611 wpa_supplicant_event(drv->ctx,
612 EVENT_INTERFACE_DISABLED, NULL);
613 }
a63063b4
JM		 614 }
615
616 if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) {
617 wpa_printf(MSG_DEBUG, "nl80211: Interface up");
618 drv->if_disabled = 0;
619 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED, NULL);
620 }
621
3f5285e8
JM		 622 /*
623 * Some drivers send the association event before the operup event--in
624 * this case, lifting operstate in wpa_driver_nl80211_set_operstate()
625 * fails. This will hit us when wpa_supplicant does not need to do
626 * IEEE 802.1X authentication
627 */
628 if (drv->operstate == 1 &&
629 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP &&
630 !(ifi->ifi_flags & IFF_RUNNING))
36d84860 631 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex,
e2d02c29 632 -1, IF_OPER_UP);
3f5285e8 633
62d680c3
JM		 634 attrlen = len;
635 attr = (struct rtattr *) buf;
3f5285e8
JM		 636 rta_len = RTA_ALIGN(sizeof(struct rtattr));
637 while (RTA_OK(attr, attrlen)) {
d8816397 638 if (attr->rta_type == IFLA_IFNAME) {
7524cfb1 639 wpa_driver_nl80211_event_link(
08063178 640 drv,
7524cfb1
JM		 641 ((char *) attr) + rta_len,
642 attr->rta_len - rta_len, 0);
97cfcf64
B		 643 } else if (attr->rta_type == IFLA_MASTER)
644 brid = nla_get_u32((struct nlattr *) attr);
3f5285e8
JM		 645 attr = RTA_NEXT(attr, attrlen);
646 }
97cfcf64
B		 647
648 if (ifi->ifi_family == AF_BRIDGE && brid) {
649 /* device has been added to bridge */
650 char namebuf[IFNAMSIZ];
651 if_indextoname(brid, namebuf);
652 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s",
653 brid, namebuf);
654 add_ifidx(drv, brid);
655 }
3f5285e8
JM		 656}
657
658
62d680c3
JM		 659static void wpa_driver_nl80211_event_rtm_dellink(void *ctx,
660 struct ifinfomsg *ifi,
661 u8 *buf, size_t len)
3f5285e8 662{
36d84860
BG		 663 struct nl80211_global *global = ctx;
664 struct wpa_driver_nl80211_data *drv;
62d680c3
JM		 665 int attrlen, rta_len;
666 struct rtattr *attr;
97cfcf64 667 u32 brid = 0;
3f5285e8 668
36d84860
BG		 669 drv = nl80211_find_drv(global, ifi->ifi_index, buf, len);
670 if (!drv) {
671 wpa_printf(MSG_DEBUG, "nl80211: Ignore dellink event for "
672 "foreign ifindex %d", ifi->ifi_index);
673 return;
674 }
675
62d680c3
JM		 676 attrlen = len;
677 attr = (struct rtattr *) buf;
3f5285e8
JM		 678
679 rta_len = RTA_ALIGN(sizeof(struct rtattr));
680 while (RTA_OK(attr, attrlen)) {
681 if (attr->rta_type == IFLA_IFNAME) {
7524cfb1 682 wpa_driver_nl80211_event_link(
08063178 683 drv,
7524cfb1
JM		 684 ((char *) attr) + rta_len,
685 attr->rta_len - rta_len, 1);
97cfcf64
B		 686 } else if (attr->rta_type == IFLA_MASTER)
687 brid = nla_get_u32((struct nlattr *) attr);
3f5285e8
JM		 688 attr = RTA_NEXT(attr, attrlen);
689 }
97cfcf64
B		 690
691 if (ifi->ifi_family == AF_BRIDGE && brid) {
692 /* device has been removed from bridge */
693 char namebuf[IFNAMSIZ];
694 if_indextoname(brid, namebuf);
695 wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge "
696 "%s", brid, namebuf);
697 del_ifidx(drv, brid);
698 }
3f5285e8
JM		 699}
700
701
c2a04078
JM		 702static void mlme_event_auth(struct wpa_driver_nl80211_data *drv,
703 const u8 *frame, size_t len)
704{
705 const struct ieee80211_mgmt *mgmt;
706 union wpa_event_data event;
707
708 mgmt = (const struct ieee80211_mgmt *) frame;
709 if (len < 24 + sizeof(mgmt->u.auth)) {
710 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
711 "frame");
712 return;
713 }
714
e6b8efeb 715 os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN);
c2a04078
JM		 716 os_memset(&event, 0, sizeof(event));
717 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN);
718 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg);
719 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code);
720 if (len > 24 + sizeof(mgmt->u.auth)) {
721 event.auth.ies = mgmt->u.auth.variable;
722 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth);
723 }
724
725 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event);
726}
727
728
f5a8d422
JM		 729static unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv)
730{
731 struct nl_msg *msg;
732 int ret;
733 struct nl80211_bss_info_arg arg;
734
735 os_memset(&arg, 0, sizeof(arg));
736 msg = nlmsg_alloc();
737 if (!msg)
738 goto nla_put_failure;
739
9fb04070 740 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
f5a8d422
JM		 741 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
742
743 arg.drv = drv;
744 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
745 msg = NULL;
746 if (ret == 0) {
747 wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the "
748 "associated BSS from scan results: %u MHz",
749 arg.assoc_freq);
750 return arg.assoc_freq ? arg.assoc_freq : drv->assoc_freq;
751 }
752 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
753 "(%s)", ret, strerror(-ret));
754nla_put_failure:
755 nlmsg_free(msg);
756 return drv->assoc_freq;
757}
758
759
c2a04078
JM		 760static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv,
761 const u8 *frame, size_t len)
762{
763 const struct ieee80211_mgmt *mgmt;
764 union wpa_event_data event;
765 u16 status;
766
767 mgmt = (const struct ieee80211_mgmt *) frame;
768 if (len < 24 + sizeof(mgmt->u.assoc_resp)) {
769 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
770 "frame");
771 return;
772 }
773
774 status = le_to_host16(mgmt->u.assoc_resp.status_code);
775 if (status != WLAN_STATUS_SUCCESS) {
efa46078 776 os_memset(&event, 0, sizeof(event));
59ddf221 777 event.assoc_reject.bssid = mgmt->bssid;
efa46078
JM		 778 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
779 event.assoc_reject.resp_ies =
780 (u8 *) mgmt->u.assoc_resp.variable;
781 event.assoc_reject.resp_ies_len =
782 len - 24 - sizeof(mgmt->u.assoc_resp);
783 }
784 event.assoc_reject.status_code = status;
785
786 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
c2a04078
JM		 787 return;
788 }
789
790 drv->associated = 1;
791 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN);
792
793 os_memset(&event, 0, sizeof(event));
794 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
795 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable;
796 event.assoc_info.resp_ies_len =
efa46078 797 len - 24 - sizeof(mgmt->u.assoc_resp);
c2a04078
JM		 798 }
799
4832ecd7
JM		 800 event.assoc_info.freq = drv->assoc_freq;
801
c2a04078
JM		 802 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
803}
804
c1bb3e0a 805
da72a1c1
ZY		 806static void mlme_event_connect(struct wpa_driver_nl80211_data *drv,
807 enum nl80211_commands cmd, struct nlattr *status,
808 struct nlattr *addr, struct nlattr *req_ie,
809 struct nlattr *resp_ie)
810{
811 union wpa_event_data event;
812
7da2c527
JM		 813 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
814 /*
815 * Avoid reporting two association events that would confuse
816 * the core code.
817 */
818 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) "
819 "when using userspace SME", cmd);
820 return;
821 }
822
da72a1c1
ZY		 823 os_memset(&event, 0, sizeof(event));
824 if (cmd == NL80211_CMD_CONNECT &&
825 nla_get_u16(status) != WLAN_STATUS_SUCCESS) {
df89c1c8
JM		 826 if (addr)
827 event.assoc_reject.bssid = nla_data(addr);
da72a1c1
ZY		 828 if (resp_ie) {
829 event.assoc_reject.resp_ies = nla_data(resp_ie);
830 event.assoc_reject.resp_ies_len = nla_len(resp_ie);
831 }
832 event.assoc_reject.status_code = nla_get_u16(status);
833 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
834 return;
835 }
836
837 drv->associated = 1;
838 if (addr)
839 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN);
840
841 if (req_ie) {
842 event.assoc_info.req_ies = nla_data(req_ie);
843 event.assoc_info.req_ies_len = nla_len(req_ie);
844 }
845 if (resp_ie) {
846 event.assoc_info.resp_ies = nla_data(resp_ie);
847 event.assoc_info.resp_ies_len = nla_len(resp_ie);
848 }
849
f5a8d422
JM		 850 event.assoc_info.freq = nl80211_get_assoc_freq(drv);
851
da72a1c1
ZY		 852 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
853}
c2a04078 854
c1bb3e0a 855
20f5a4c2
JM		 856static void mlme_event_disconnect(struct wpa_driver_nl80211_data *drv,
857 struct nlattr *reason, struct nlattr *addr)
858{
859 union wpa_event_data data;
860
861 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
862 /*
863 * Avoid reporting two disassociation events that could
864 * confuse the core code.
865 */
866 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect "
867 "event when using userspace SME");
868 return;
869 }
870
871 drv->associated = 0;
872 os_memset(&data, 0, sizeof(data));
873 if (reason)
874 data.disassoc_info.reason_code = nla_get_u16(reason);
875 wpa_supplicant_event(drv->ctx, EVENT_DISASSOC, &data);
876}
877
878
da1fb17c
JM		 879static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv,
880 enum nl80211_commands cmd, struct nlattr *addr)
881{
882 union wpa_event_data event;
883 enum wpa_event_type ev;
884
885 if (nla_len(addr) != ETH_ALEN)
886 return;
887
888 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR,
889 cmd, MAC2STR((u8 *) nla_data(addr)));
890
891 if (cmd == NL80211_CMD_AUTHENTICATE)
892 ev = EVENT_AUTH_TIMED_OUT;
893 else if (cmd == NL80211_CMD_ASSOCIATE)
894 ev = EVENT_ASSOC_TIMED_OUT;
895 else
896 return;
897
898 os_memset(&event, 0, sizeof(event));
899 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN);
900 wpa_supplicant_event(drv->ctx, ev, &event);
901}
902
903
5582a5d1
JB		 904static void mlme_event_mgmt(struct wpa_driver_nl80211_data *drv,
905 struct nlattr *freq, const u8 *frame, size_t len)
58f6fbe0
JM		 906{
907 const struct ieee80211_mgmt *mgmt;
908 union wpa_event_data event;
909 u16 fc, stype;
910
911 mgmt = (const struct ieee80211_mgmt *) frame;
912 if (len < 24) {
913 wpa_printf(MSG_DEBUG, "nl80211: Too short action frame");
914 return;
915 }
916
917 fc = le_to_host16(mgmt->frame_control);
918 stype = WLAN_FC_GET_STYPE(fc);
919
920 os_memset(&event, 0, sizeof(event));
5582a5d1 921 if (freq) {
58f6fbe0 922 event.rx_action.freq = nla_get_u32(freq);
5582a5d1
JB		 923 drv->last_mgmt_freq = event.rx_action.freq;
924 }
925 if (stype == WLAN_FC_STYPE_ACTION) {
926 event.rx_action.da = mgmt->da;
927 event.rx_action.sa = mgmt->sa;
928 event.rx_action.bssid = mgmt->bssid;
929 event.rx_action.category = mgmt->u.action.category;
930 event.rx_action.data = &mgmt->u.action.category + 1;
931 event.rx_action.len = frame + len - event.rx_action.data;
932 wpa_supplicant_event(drv->ctx, EVENT_RX_ACTION, &event);
933 } else {
934 event.rx_mgmt.frame = frame;
935 event.rx_mgmt.frame_len = len;
936 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
937 }
58f6fbe0
JM		 938}
939
940
941static void mlme_event_action_tx_status(struct wpa_driver_nl80211_data *drv,
942 struct nlattr *cookie, const u8 *frame,
943 size_t len, struct nlattr *ack)
944{
945 union wpa_event_data event;
946 const struct ieee80211_hdr *hdr;
947 u16 fc;
948 u64 cookie_val;
949
950 if (!cookie)
951 return;
952
953 cookie_val = nla_get_u64(cookie);
4796272f
JM		 954 wpa_printf(MSG_DEBUG, "nl80211: Action TX status: cookie=0%llx%s "
955 "(ack=%d)",
58f6fbe0
JM		 956 (long long unsigned int) cookie_val,
957 cookie_val == drv->send_action_cookie ?
4796272f 958 " (match)" : " (unknown)", ack != NULL);
58f6fbe0
JM		 959 if (cookie_val != drv->send_action_cookie)
960 return;
961
962 hdr = (const struct ieee80211_hdr *) frame;
963 fc = le_to_host16(hdr->frame_control);
964
965 os_memset(&event, 0, sizeof(event));
966 event.tx_status.type = WLAN_FC_GET_TYPE(fc);
967 event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
968 event.tx_status.dst = hdr->addr1;
969 event.tx_status.data = frame;
970 event.tx_status.data_len = len;
971 event.tx_status.ack = ack != NULL;
972 wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event);
973}
974
975
0544b242
JM		 976static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv,
977 enum wpa_event_type type,
978 const u8 *frame, size_t len)
979{
980 const struct ieee80211_mgmt *mgmt;
981 union wpa_event_data event;
982 const u8 *bssid = NULL;
983 u16 reason_code = 0;
984
cb30b297
PS		 985 mgmt = (const struct ieee80211_mgmt *) frame;
986 if (len >= 24) {
987 bssid = mgmt->bssid;
988
989 if (drv->associated != 0 &&
990 os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 &&
991 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) {
992 /*
993 * We have presumably received this deauth as a
994 * response to a clear_state_mismatch() outgoing
995 * deauth. Don't let it take us offline!
996 */
997 wpa_printf(MSG_DEBUG, "nl80211: Deauth received "
998 "from Unknown BSSID " MACSTR " -- ignoring",
999 MAC2STR(bssid));
1000 return;
1001 }
1002 }
1003
0544b242
JM		 1004 drv->associated = 0;
1005 os_memset(&event, 0, sizeof(event));
1006
0544b242
JM		 1007 /* Note: Same offset for Reason Code in both frame subtypes */
1008 if (len >= 24 + sizeof(mgmt->u.deauth))
1009 reason_code = le_to_host16(mgmt->u.deauth.reason_code);
1010
1011 if (type == EVENT_DISASSOC) {
1012 event.disassoc_info.addr = bssid;
1013 event.disassoc_info.reason_code = reason_code;
046b26a2
JM		 1014 if (frame + len > mgmt->u.disassoc.variable) {
1015 event.disassoc_info.ie = mgmt->u.disassoc.variable;
1016 event.disassoc_info.ie_len = frame + len -
1017 mgmt->u.disassoc.variable;
1018 }
0544b242
JM		 1019 } else {
1020 event.deauth_info.addr = bssid;
1021 event.deauth_info.reason_code = reason_code;
046b26a2
JM		 1022 if (frame + len > mgmt->u.deauth.variable) {
1023 event.deauth_info.ie = mgmt->u.deauth.variable;
1024 event.deauth_info.ie_len = frame + len -
1025 mgmt->u.deauth.variable;
1026 }
0544b242
JM		 1027 }
1028
1029 wpa_supplicant_event(drv->ctx, type, &event);
1030}
1031
1032
7d878ca7
JM		 1033static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv,
1034 enum wpa_event_type type,
1035 const u8 *frame, size_t len)
1036{
1037 const struct ieee80211_mgmt *mgmt;
1038 union wpa_event_data event;
1039 u16 reason_code = 0;
1040
1041 if (len < 24)
1042 return;
1043
1044 mgmt = (const struct ieee80211_mgmt *) frame;
1045
1046 os_memset(&event, 0, sizeof(event));
1047 /* Note: Same offset for Reason Code in both frame subtypes */
1048 if (len >= 24 + sizeof(mgmt->u.deauth))
1049 reason_code = le_to_host16(mgmt->u.deauth.reason_code);
1050
1051 if (type == EVENT_UNPROT_DISASSOC) {
1052 event.unprot_disassoc.sa = mgmt->sa;
1053 event.unprot_disassoc.da = mgmt->da;
1054 event.unprot_disassoc.reason_code = reason_code;
1055 } else {
1056 event.unprot_deauth.sa = mgmt->sa;
1057 event.unprot_deauth.da = mgmt->da;
1058 event.unprot_deauth.reason_code = reason_code;
1059 }
1060
1061 wpa_supplicant_event(drv->ctx, type, &event);
1062}
1063
1064
c2a04078 1065static void mlme_event(struct wpa_driver_nl80211_data *drv,
da1fb17c 1066 enum nl80211_commands cmd, struct nlattr *frame,
58f6fbe0
JM		 1067 struct nlattr *addr, struct nlattr *timed_out,
1068 struct nlattr *freq, struct nlattr *ack,
1069 struct nlattr *cookie)
c2a04078 1070{
da1fb17c
JM		 1071 if (timed_out && addr) {
1072 mlme_timeout_event(drv, cmd, addr);
1073 return;
1074 }
1075
c2a04078
JM		 1076 if (frame == NULL) {
1077 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d without frame "
1078 "data", cmd);
1079 return;
1080 }
1081
1082 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d", cmd);
1083 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame",
1084 nla_data(frame), nla_len(frame));
1085
1086 switch (cmd) {
1087 case NL80211_CMD_AUTHENTICATE:
1088 mlme_event_auth(drv, nla_data(frame), nla_len(frame));
1089 break;
1090 case NL80211_CMD_ASSOCIATE:
1091 mlme_event_assoc(drv, nla_data(frame), nla_len(frame));
1092 break;
1093 case NL80211_CMD_DEAUTHENTICATE:
0544b242
JM		 1094 mlme_event_deauth_disassoc(drv, EVENT_DEAUTH,
1095 nla_data(frame), nla_len(frame));
c2a04078
JM		 1096 break;
1097 case NL80211_CMD_DISASSOCIATE:
0544b242
JM		 1098 mlme_event_deauth_disassoc(drv, EVENT_DISASSOC,
1099 nla_data(frame), nla_len(frame));
c2a04078 1100 break;
bd94971e 1101 case NL80211_CMD_FRAME:
5582a5d1 1102 mlme_event_mgmt(drv, freq, nla_data(frame), nla_len(frame));
58f6fbe0 1103 break;
bd94971e 1104 case NL80211_CMD_FRAME_TX_STATUS:
58f6fbe0
JM		 1105 mlme_event_action_tx_status(drv, cookie, nla_data(frame),
1106 nla_len(frame), ack);
1107 break;
7d878ca7
JM		 1108 case NL80211_CMD_UNPROT_DEAUTHENTICATE:
1109 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH,
1110 nla_data(frame), nla_len(frame));
1111 break;
1112 case NL80211_CMD_UNPROT_DISASSOCIATE:
1113 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC,
1114 nla_data(frame), nla_len(frame));
1115 break;
c2a04078
JM		 1116 default:
1117 break;
1118 }
1119}
1120
1121
35583f3f
JM		 1122static void mlme_event_michael_mic_failure(struct wpa_driver_nl80211_data *drv,
1123 struct nlattr *tb[])
1124{
1125 union wpa_event_data data;
1126
1127 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure");
1128 os_memset(&data, 0, sizeof(data));
1129 if (tb[NL80211_ATTR_MAC]) {
1130 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address",
1131 nla_data(tb[NL80211_ATTR_MAC]),
1132 nla_len(tb[NL80211_ATTR_MAC]));
ad1e68e6 1133 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]);
35583f3f
JM		 1134 }
1135 if (tb[NL80211_ATTR_KEY_SEQ]) {
1136 wpa_hexdump(MSG_DEBUG, "nl80211: TSC",
1137 nla_data(tb[NL80211_ATTR_KEY_SEQ]),
1138 nla_len(tb[NL80211_ATTR_KEY_SEQ]));
1139 }
1140 if (tb[NL80211_ATTR_KEY_TYPE]) {
1141 enum nl80211_key_type key_type =
1142 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]);
1143 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type);
1144 if (key_type == NL80211_KEYTYPE_PAIRWISE)
1145 data.michael_mic_failure.unicast = 1;
1146 } else
1147 data.michael_mic_failure.unicast = 1;
1148
1149 if (tb[NL80211_ATTR_KEY_IDX]) {
1150 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]);
1151 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id);
1152 }
1153
1154 wpa_supplicant_event(drv->ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
1155}
1156
1157
5cc4d64b
JM		 1158static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv,
1159 struct nlattr *tb[])
1160{
1161 if (tb[NL80211_ATTR_MAC] == NULL) {
1162 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined "
1163 "event");
1164 return;
1165 }
1166 os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
1167 drv->associated = 1;
1168 wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined",
1169 MAC2STR(drv->bssid));
1170
1171 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL);
1172}
1173
1174
55777702
JM		 1175static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv,
1176 int cancel_event, struct nlattr *tb[])
1177{
1178 unsigned int freq, chan_type, duration;
1179 union wpa_event_data data;
1180 u64 cookie;
1181
1182 if (tb[NL80211_ATTR_WIPHY_FREQ])
1183 freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]);
1184 else
1185 freq = 0;
1186
1187 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
1188 chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1189 else
1190 chan_type = 0;
1191
1192 if (tb[NL80211_ATTR_DURATION])
1193 duration = nla_get_u32(tb[NL80211_ATTR_DURATION]);
1194 else
1195 duration = 0;
1196
1197 if (tb[NL80211_ATTR_COOKIE])
1198 cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
1199 else
1200 cookie = 0;
1201
1202 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d "
1203 "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))",
1204 cancel_event, freq, chan_type, duration,
1205 (long long unsigned int) cookie,
1206 cookie == drv->remain_on_chan_cookie ? "match" : "unknown");
1207
1208 if (cookie != drv->remain_on_chan_cookie)
1209 return; /* not for us */
1210
531f0331
JB		 1211 if (cancel_event)
1212 drv->pending_remain_on_chan = 0;
55777702
JM		 1213
1214 os_memset(&data, 0, sizeof(data));
1215 data.remain_on_channel.freq = freq;
1216 data.remain_on_channel.duration = duration;
1217 wpa_supplicant_event(drv->ctx, cancel_event ?
1218 EVENT_CANCEL_REMAIN_ON_CHANNEL :
1219 EVENT_REMAIN_ON_CHANNEL, &data);
1220}
1221
1222
8d923a4a
JM		 1223static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted,
1224 struct nlattr *tb[])
1225{
1226 union wpa_event_data event;
1227 struct nlattr *nl;
1228 int rem;
1229 struct scan_info *info;
1230#define MAX_REPORT_FREQS 50
1231 int freqs[MAX_REPORT_FREQS];
1232 int num_freqs = 0;
1233
1234 os_memset(&event, 0, sizeof(event));
1235 info = &event.scan_info;
1236 info->aborted = aborted;
1237
1238 if (tb[NL80211_ATTR_SCAN_SSIDS]) {
1239 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) {
1240 struct wpa_driver_scan_ssid *s =
1241 &info->ssids[info->num_ssids];
1242 s->ssid = nla_data(nl);
1243 s->ssid_len = nla_len(nl);
1244 info->num_ssids++;
1245 if (info->num_ssids == WPAS_MAX_SCAN_SSIDS)
1246 break;
1247 }
1248 }
1249 if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) {
1250 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem)
1251 {
1252 freqs[num_freqs] = nla_get_u32(nl);
1253 num_freqs++;
1254 if (num_freqs == MAX_REPORT_FREQS - 1)
1255 break;
1256 }
1257 info->freqs = freqs;
1258 info->num_freqs = num_freqs;
1259 }
1260 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event);
1261}
1262
1263
60a972a6
JM		 1264static int get_link_signal(struct nl_msg *msg, void *arg)
1265{
1266 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1267 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1268 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1];
1269 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = {
1270 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 },
1271 };
7ee35bf3
PS		 1272 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1];
1273 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = {
1274 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 },
1275 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 },
1276 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG },
1277 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG },
1278 };
1c5c7273 1279 struct wpa_signal_info *sig_change = arg;
60a972a6
JM		 1280
1281 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1282 genlmsg_attrlen(gnlh, 0), NULL);
1283 if (!tb[NL80211_ATTR_STA_INFO] ||
1284 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX,
1285 tb[NL80211_ATTR_STA_INFO], policy))
1286 return NL_SKIP;
1287 if (!sinfo[NL80211_STA_INFO_SIGNAL])
1288 return NL_SKIP;
1289
7ee35bf3
PS		 1290 sig_change->current_signal =
1291 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]);
1292
1293 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) {
1294 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX,
1295 sinfo[NL80211_STA_INFO_TX_BITRATE],
1296 rate_policy)) {
1297 sig_change->current_txrate = 0;
1298 } else {
1299 if (rinfo[NL80211_RATE_INFO_BITRATE]) {
1300 sig_change->current_txrate =
1301 nla_get_u16(rinfo[
1302 NL80211_RATE_INFO_BITRATE]) * 100;
1303 }
1304 }
1305 }
1306
60a972a6
JM		 1307 return NL_SKIP;
1308}
1309
1310
1311static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv,
1c5c7273 1312 struct wpa_signal_info *sig)
60a972a6
JM		 1313{
1314 struct nl_msg *msg;
1315
7ee35bf3
PS		 1316 sig->current_signal = -9999;
1317 sig->current_txrate = 0;
60a972a6
JM		 1318
1319 msg = nlmsg_alloc();
1320 if (!msg)
1321 return -ENOMEM;
1322
9fb04070 1323 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION);
60a972a6
JM		 1324
1325 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1326 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
1327
1328 return send_and_recv_msgs(drv, msg, get_link_signal, sig);
1329 nla_put_failure:
1330 return -ENOBUFS;
1331}
1332
1333
7ee35bf3
PS		 1334static int get_link_noise(struct nl_msg *msg, void *arg)
1335{
1336 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1337 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1338 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
1339 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
1340 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
1341 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
1342 };
1c5c7273 1343 struct wpa_signal_info *sig_change = arg;
7ee35bf3
PS		 1344
1345 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1346 genlmsg_attrlen(gnlh, 0), NULL);
1347
1348 if (!tb[NL80211_ATTR_SURVEY_INFO]) {
1349 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!");
1350 return NL_SKIP;
1351 }
1352
1353 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
1354 tb[NL80211_ATTR_SURVEY_INFO],
1355 survey_policy)) {
1356 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested "
1357 "attributes!");
1358 return NL_SKIP;
1359 }
1360
1361 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY])
1362 return NL_SKIP;
1363
1364 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) !=
1365 sig_change->frequency)
1366 return NL_SKIP;
1367
1368 if (!sinfo[NL80211_SURVEY_INFO_NOISE])
1369 return NL_SKIP;
1370
1371 sig_change->current_noise =
1372 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
1373
1374 return NL_SKIP;
1375}
1376
1377
1378static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv,
1c5c7273 1379 struct wpa_signal_info *sig_change)
7ee35bf3
PS		 1380{
1381 struct nl_msg *msg;
1382
1383 sig_change->current_noise = 9999;
1384 sig_change->frequency = drv->assoc_freq;
1385
1386 msg = nlmsg_alloc();
1387 if (!msg)
1388 return -ENOMEM;
1389
9fb04070 1390 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
7ee35bf3
PS		 1391
1392 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1393
1394 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change);
1395 nla_put_failure:
1396 return -ENOBUFS;
1397}
1398
1399
93910401
JM		 1400static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv,
1401 struct nlattr *tb[])
1402{
1403 static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
1404 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
1405 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 },
1406 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
0d7e5a3a 1407 [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 },
93910401
JM		 1408 };
1409 struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1];
1410 enum nl80211_cqm_rssi_threshold_event event;
b625473c 1411 union wpa_event_data ed;
1c5c7273 1412 struct wpa_signal_info sig;
7ee35bf3 1413 int res;
93910401
JM		 1414
1415 if (tb[NL80211_ATTR_CQM] == NULL ||
1416 nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM],
1417 cqm_policy)) {
1418 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event");
1419 return;
1420 }
1421
0d7e5a3a
JB		 1422 os_memset(&ed, 0, sizeof(ed));
1423
1424 if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) {
1425 if (!tb[NL80211_ATTR_MAC])
1426 return;
1427 os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]),
1428 ETH_ALEN);
1429 wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed);
1430 return;
1431 }
1432
93910401
JM		 1433 if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL)
1434 return;
1435 event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]);
b625473c 1436
93910401
JM		 1437 if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) {
1438 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
1439 "event: RSSI high");
b625473c 1440 ed.signal_change.above_threshold = 1;
93910401
JM		 1441 } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) {
1442 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
1443 "event: RSSI low");
b625473c
JM		 1444 ed.signal_change.above_threshold = 0;
1445 } else
1446 return;
1447
60a972a6
JM		 1448 res = nl80211_get_link_signal(drv, &sig);
1449 if (res == 0) {
7ee35bf3
PS		 1450 ed.signal_change.current_signal = sig.current_signal;
1451 ed.signal_change.current_txrate = sig.current_txrate;
1452 wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d",
1453 sig.current_signal, sig.current_txrate);
1454 }
1455
1456 res = nl80211_get_link_noise(drv, &sig);
1457 if (res == 0) {
1458 ed.signal_change.current_noise = sig.current_noise;
1459 wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm",
1460 sig.current_noise);
60a972a6
JM		 1461 }
1462
b625473c 1463 wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed);
93910401
JM		 1464}
1465
1466
18d2ba08
JM		 1467static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv,
1468 struct nlattr **tb)
1469{
1470 u8 *addr;
1471 union wpa_event_data data;
1472
1473 if (tb[NL80211_ATTR_MAC] == NULL)
1474 return;
1475 addr = nla_data(tb[NL80211_ATTR_MAC]);
1476 wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr));
5f310a9e 1477
86957e62 1478 if (is_ap_interface(drv->nlmode) && drv->no_monitor_iface_capab) {
5f310a9e
JM		 1479 u8 *ies = NULL;
1480 size_t ies_len = 0;
1481 if (tb[NL80211_ATTR_IE]) {
1482 ies = nla_data(tb[NL80211_ATTR_IE]);
1483 ies_len = nla_len(tb[NL80211_ATTR_IE]);
1484 }
1485 wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len);
1486 drv_event_assoc(drv->ctx, addr, ies, ies_len, 0);
1487 return;
1488 }
1489
18d2ba08
JM		 1490 if (drv->nlmode != NL80211_IFTYPE_ADHOC)
1491 return;
1492
1493 os_memset(&data, 0, sizeof(data));
1494 os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN);
1495 wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data);
1496}
1497
1498
ef985058
JM		 1499static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv,
1500 struct nlattr **tb)
1501{
1502 u8 *addr;
1503 union wpa_event_data data;
1504
1505 if (tb[NL80211_ATTR_MAC] == NULL)
1506 return;
1507 addr = nla_data(tb[NL80211_ATTR_MAC]);
1508 wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR,
1509 MAC2STR(addr));
5f310a9e 1510
86957e62 1511 if (is_ap_interface(drv->nlmode) && drv->no_monitor_iface_capab) {
5f310a9e
JM		 1512 drv_event_disassoc(drv->ctx, addr);
1513 return;
1514 }
1515
ef985058
JM		 1516 if (drv->nlmode != NL80211_IFTYPE_ADHOC)
1517 return;
1518
1519 os_memset(&data, 0, sizeof(data));
1520 os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN);
1521 wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data);
1522}
1523
1524
b14a210c
JB		 1525static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv,
1526 struct nlattr **tb)
1527{
1528 struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA];
1529 static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = {
1530 [NL80211_REKEY_DATA_KEK] = {
1531 .minlen = NL80211_KEK_LEN,
1532 .maxlen = NL80211_KEK_LEN,
1533 },
1534 [NL80211_REKEY_DATA_KCK] = {
1535 .minlen = NL80211_KCK_LEN,
1536 .maxlen = NL80211_KCK_LEN,
1537 },
1538 [NL80211_REKEY_DATA_REPLAY_CTR] = {
1539 .minlen = NL80211_REPLAY_CTR_LEN,
1540 .maxlen = NL80211_REPLAY_CTR_LEN,
1541 },
1542 };
1543 union wpa_event_data data;
1544
1545 if (!tb[NL80211_ATTR_MAC])
1546 return;
1547 if (!tb[NL80211_ATTR_REKEY_DATA])
1548 return;
1549 if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA,
1550 tb[NL80211_ATTR_REKEY_DATA], rekey_policy))
1551 return;
1552 if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR])
1553 return;
1554
1555 os_memset(&data, 0, sizeof(data));
1556 data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]);
1557 wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR,
1558 MAC2STR(data.driver_gtk_rekey.bssid));
1559 data.driver_gtk_rekey.replay_ctr =
1560 nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]);
1561 wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter",
1562 data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN);
1563 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data);
1564}
1565
1566
c36d5242
JM		 1567static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv,
1568 struct nlattr **tb)
1569{
1570 struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE];
1571 static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = {
1572 [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 },
1573 [NL80211_PMKSA_CANDIDATE_BSSID] = {
1574 .minlen = ETH_ALEN,
1575 .maxlen = ETH_ALEN,
1576 },
1577 [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG },
1578 };
1579 union wpa_event_data data;
1580
1581 if (!tb[NL80211_ATTR_PMKSA_CANDIDATE])
1582 return;
1583 if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE,
1584 tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy))
1585 return;
1586 if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] ||
1587 !cand[NL80211_PMKSA_CANDIDATE_BSSID])
1588 return;
1589
1590 os_memset(&data, 0, sizeof(data));
1591 os_memcpy(data.pmkid_candidate.bssid,
1592 nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN);
1593 data.pmkid_candidate.index =
1594 nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]);
1595 data.pmkid_candidate.preauth =
1596 cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL;
1597 wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data);
1598}
1599
1600
97865538
JM		 1601static int process_event(struct nl_msg *msg, void *arg)
1602{
1603 struct wpa_driver_nl80211_data *drv = arg;
1604 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1605 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1606
1607 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1608 genlmsg_attrlen(gnlh, 0), NULL);
1609
1610 if (tb[NL80211_ATTR_IFINDEX]) {
1611 int ifindex = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
97cfcf64 1612 if (ifindex != drv->ifindex && !have_ifidx(drv, ifindex)) {
97865538
JM		 1613 wpa_printf(MSG_DEBUG, "nl80211: Ignored event (cmd=%d)"
1614 " for foreign interface (ifindex %d)",
1615 gnlh->cmd, ifindex);
1616 return NL_SKIP;
1617 }
1618 }
1619
b1f625e0 1620 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED &&
ad1e68e6
JM		 1621 (gnlh->cmd == NL80211_CMD_NEW_SCAN_RESULTS ||
1622 gnlh->cmd == NL80211_CMD_SCAN_ABORTED)) {
a2e40bb6 1623 wpa_driver_nl80211_set_mode(&drv->first_bss,
b1f625e0
EP		 1624 drv->ap_scan_as_station);
1625 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
ad1e68e6
JM		 1626 }
1627
97865538 1628 switch (gnlh->cmd) {
d942a79e
JM		 1629 case NL80211_CMD_TRIGGER_SCAN:
1630 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger");
1631 break;
d21c63b9
LC		 1632 case NL80211_CMD_START_SCHED_SCAN:
1633 wpa_printf(MSG_DEBUG, "nl80211: Sched scan started");
1634 break;
1635 case NL80211_CMD_SCHED_SCAN_STOPPED:
1636 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stopped");
1637 wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL);
1638 break;
97865538
JM		 1639 case NL80211_CMD_NEW_SCAN_RESULTS:
1640 wpa_printf(MSG_DEBUG, "nl80211: New scan results available");
1641 drv->scan_complete_events = 1;
1642 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
1643 drv->ctx);
8d923a4a 1644 send_scan_event(drv, 0, tb);
97865538 1645 break;
d21c63b9
LC		 1646 case NL80211_CMD_SCHED_SCAN_RESULTS:
1647 wpa_printf(MSG_DEBUG,
1648 "nl80211: New sched scan results available");
1649 send_scan_event(drv, 0, tb);
1650 break;
97865538
JM		 1651 case NL80211_CMD_SCAN_ABORTED:
1652 wpa_printf(MSG_DEBUG, "nl80211: Scan aborted");
1653 /*
1654 * Need to indicate that scan results are available in order
1655 * not to make wpa_supplicant stop its scanning.
1656 */
1657 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
1658 drv->ctx);
8d923a4a 1659 send_scan_event(drv, 1, tb);
97865538 1660 break;
c2a04078
JM		 1661 case NL80211_CMD_AUTHENTICATE:
1662 case NL80211_CMD_ASSOCIATE:
1663 case NL80211_CMD_DEAUTHENTICATE:
1664 case NL80211_CMD_DISASSOCIATE:
bd94971e
JB		 1665 case NL80211_CMD_FRAME:
1666 case NL80211_CMD_FRAME_TX_STATUS:
7d878ca7
JM		 1667 case NL80211_CMD_UNPROT_DEAUTHENTICATE:
1668 case NL80211_CMD_UNPROT_DISASSOCIATE:
da1fb17c 1669 mlme_event(drv, gnlh->cmd, tb[NL80211_ATTR_FRAME],
58f6fbe0
JM		 1670 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT],
1671 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK],
1672 tb[NL80211_ATTR_COOKIE]);
c2a04078 1673 break;
da72a1c1
ZY		 1674 case NL80211_CMD_CONNECT:
1675 case NL80211_CMD_ROAM:
1676 mlme_event_connect(drv, gnlh->cmd,
1677 tb[NL80211_ATTR_STATUS_CODE],
1678 tb[NL80211_ATTR_MAC],
1679 tb[NL80211_ATTR_REQ_IE],
1680 tb[NL80211_ATTR_RESP_IE]);
1681 break;
1682 case NL80211_CMD_DISCONNECT:
20f5a4c2
JM		 1683 mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE],
1684 tb[NL80211_ATTR_MAC]);
da72a1c1 1685 break;
35583f3f
JM		 1686 case NL80211_CMD_MICHAEL_MIC_FAILURE:
1687 mlme_event_michael_mic_failure(drv, tb);
1688 break;
5cc4d64b
JM		 1689 case NL80211_CMD_JOIN_IBSS:
1690 mlme_event_join_ibss(drv, tb);
1691 break;
55777702
JM		 1692 case NL80211_CMD_REMAIN_ON_CHANNEL:
1693 mlme_event_remain_on_channel(drv, 0, tb);
1694 break;
1695 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL:
1696 mlme_event_remain_on_channel(drv, 1, tb);
1697 break;
93910401
JM		 1698 case NL80211_CMD_NOTIFY_CQM:
1699 nl80211_cqm_event(drv, tb);
1700 break;
33c5deb8
JM		 1701 case NL80211_CMD_REG_CHANGE:
1702 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change");
1703 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED,
1704 NULL);
1705 break;
1706 case NL80211_CMD_REG_BEACON_HINT:
1707 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint");
1708 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED,
1709 NULL);
1710 break;
18d2ba08
JM		 1711 case NL80211_CMD_NEW_STATION:
1712 nl80211_new_station_event(drv, tb);
1713 break;
ef985058
JM		 1714 case NL80211_CMD_DEL_STATION:
1715 nl80211_del_station_event(drv, tb);
1716 break;
b14a210c
JB		 1717 case NL80211_CMD_SET_REKEY_OFFLOAD:
1718 nl80211_rekey_offload_event(drv, tb);
1719 break;
c36d5242
JM		 1720 case NL80211_CMD_PMKSA_CANDIDATE:
1721 nl80211_pmksa_candidate_event(drv, tb);
1722 break;
97865538 1723 default:
c2a04078
JM		 1724 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event "
1725 "(cmd=%d)", gnlh->cmd);
97865538
JM		 1726 break;
1727 }
1728
1729 return NL_SKIP;
1730}
1731
1732
1733static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx,
5582a5d1 1734 void *handle)
97865538
JM		 1735{
1736 struct nl_cb *cb;
1737 struct wpa_driver_nl80211_data *drv = eloop_ctx;
1738
1739 wpa_printf(MSG_DEBUG, "nl80211: Event message available");
1740
2a7b66f5 1741 cb = nl_cb_clone(drv->global->nl_cb);
97865538
JM		 1742 if (!cb)
1743 return;
1744 nl_cb_set(cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL);
1745 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, process_event, drv);
5582a5d1 1746 nl_recvmsgs(handle, cb);
97865538
JM		 1747 nl_cb_put(cb);
1748}
1749
1750
6d158490
LR		 1751/**
1752 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain
1753 * @priv: driver_nl80211 private data
1754 * @alpha2_arg: country to which to switch to
1755 * Returns: 0 on success, -1 on failure
1756 *
1757 * This asks nl80211 to set the regulatory domain for given
1758 * country ISO / IEC alpha2.
1759 */
1760static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg)
1761{
a2e40bb6
FF		 1762 struct i802_bss *bss = priv;
1763 struct wpa_driver_nl80211_data *drv = bss->drv;
6d158490
LR		 1764 char alpha2[3];
1765 struct nl_msg *msg;
1766
1767 msg = nlmsg_alloc();
1768 if (!msg)
e785c2ba 1769 return -ENOMEM;
6d158490
LR		 1770
1771 alpha2[0] = alpha2_arg[0];
1772 alpha2[1] = alpha2_arg[1];
1773 alpha2[2] = '\0';
1774
9fb04070 1775 nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG);
6d158490
LR		 1776
1777 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2);
1778 if (send_and_recv_msgs(drv, msg, NULL, NULL))
1779 return -EINVAL;
1780 return 0;
1781nla_put_failure:
1782 return -EINVAL;
1783}
1784
1785
80bc75f1 1786struct wiphy_info_data {
e8b5e24e
JB		 1787 struct wpa_driver_capa *capa;
1788
1789 unsigned int error:1;
80bc75f1
JM		 1790};
1791
1792
1793static int wiphy_info_handler(struct nl_msg *msg, void *arg)
1794{
1795 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1796 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1797 struct wiphy_info_data *info = arg;
9f51b113 1798 int p2p_go_supported = 0, p2p_client_supported = 0;
e8b5e24e
JB		 1799 int p2p_concurrent = 0;
1800 int auth_supported = 0, connect_supported = 0;
1801 struct wpa_driver_capa *capa = info->capa;
7626850d
JB		 1802 static struct nla_policy
1803 iface_combination_policy[NUM_NL80211_IFACE_COMB] = {
1804 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED },
1805 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 },
1806 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG },
1807 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 },
1808 },
1809 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = {
1810 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED },
1811 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 },
1812 };
80bc75f1
JM		 1813
1814 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1815 genlmsg_attrlen(gnlh, 0), NULL);
1816
1817 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS])
e8b5e24e 1818 capa->max_scan_ssids =
80bc75f1
JM		 1819 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]);
1820
d21c63b9 1821 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS])
e8b5e24e 1822 capa->max_sched_scan_ssids =
d21c63b9
LC		 1823 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]);
1824
bd525934 1825 if (tb[NL80211_ATTR_MAX_MATCH_SETS])
e8b5e24e 1826 capa->max_match_sets =
bd525934
LC		 1827 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]);
1828
1581b38b
JM		 1829 if (tb[NL80211_ATTR_SUPPORTED_IFTYPES]) {
1830 struct nlattr *nl_mode;
1831 int i;
1832 nla_for_each_nested(nl_mode,
1833 tb[NL80211_ATTR_SUPPORTED_IFTYPES], i) {
58708b3b 1834 switch (nla_type(nl_mode)) {
9f51b113 1835 case NL80211_IFTYPE_AP:
e8b5e24e 1836 capa->flags |= WPA_DRIVER_FLAGS_AP;
1581b38b 1837 break;
9f51b113
JB		 1838 case NL80211_IFTYPE_P2P_GO:
1839 p2p_go_supported = 1;
1840 break;
1841 case NL80211_IFTYPE_P2P_CLIENT:
1842 p2p_client_supported = 1;
1843 break;
1581b38b
JM		 1844 }
1845 }
1846 }
1847
7626850d
JB		 1848 if (tb[NL80211_ATTR_INTERFACE_COMBINATIONS]) {
1849 struct nlattr *nl_combi;
1850 int rem_combi;
1851
1852 nla_for_each_nested(nl_combi,
1853 tb[NL80211_ATTR_INTERFACE_COMBINATIONS],
1854 rem_combi) {
1855 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB];
1856 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT];
1857 struct nlattr *nl_limit, *nl_mode;
1858 int err, rem_limit, rem_mode;
1859 int combination_has_p2p = 0, combination_has_mgd = 0;
1860
1861 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB,
1862 nl_combi,
1863 iface_combination_policy);
1864 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] ||
1865 !tb_comb[NL80211_IFACE_COMB_MAXNUM] ||
1866 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS])
1867 goto broken_combination;
1868
1869 nla_for_each_nested(nl_limit,
1870 tb_comb[NL80211_IFACE_COMB_LIMITS],
1871 rem_limit) {
1872 err = nla_parse_nested(tb_limit,
1873 MAX_NL80211_IFACE_LIMIT,
1874 nl_limit,
1875 iface_limit_policy);
1876 if (err ||
1877 !tb_limit[NL80211_IFACE_LIMIT_TYPES])
1878 goto broken_combination;
1879
1880 nla_for_each_nested(
1881 nl_mode,
1882 tb_limit[NL80211_IFACE_LIMIT_TYPES],
1883 rem_mode) {
1884 int ift = nla_type(nl_mode);
1885 if (ift == NL80211_IFTYPE_P2P_GO ||
1886 ift == NL80211_IFTYPE_P2P_CLIENT)
1887 combination_has_p2p = 1;
1888 if (ift == NL80211_IFTYPE_STATION)
1889 combination_has_mgd = 1;
1890 }
1891 if (combination_has_p2p && combination_has_mgd)
1892 break;
1893 }
1894
1895 if (combination_has_p2p && combination_has_mgd) {
e8b5e24e 1896 p2p_concurrent = 1;
7626850d
JB		 1897 break;
1898 }
1899
1900broken_combination:
1901 ;
1902 }
1903 }
1904
93d11400
ZY		 1905 if (tb[NL80211_ATTR_SUPPORTED_COMMANDS]) {
1906 struct nlattr *nl_cmd;
1907 int i;
1908
1909 nla_for_each_nested(nl_cmd,
1910 tb[NL80211_ATTR_SUPPORTED_COMMANDS], i) {
e8b5e24e
JB		 1911 switch (nla_get_u32(nl_cmd)) {
1912 case NL80211_CMD_AUTHENTICATE:
1913 auth_supported = 1;
1914 break;
1915 case NL80211_CMD_CONNECT:
1916 connect_supported = 1;
1917 break;
1918 case NL80211_CMD_START_SCHED_SCAN:
1919 capa->sched_scan_supported = 1;
1920 break;
1921 }
93d11400
ZY		 1922 }
1923 }
1924
e8b5e24e
JB		 1925 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) {
1926 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based "
1927 "off-channel TX");
1928 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX;
1929 }
1930
1931 if (tb[NL80211_ATTR_ROAM_SUPPORT]) {
1932 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming");
1933 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION;
1934 }
5dfca53f 1935
e8b5e24e
JB		 1936 /* default to 5000 since early versions of mac80211 don't set it */
1937 capa->max_remain_on_chan = 5000;
004ba773 1938
89e07afb 1939 if (tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION])
e8b5e24e 1940 capa->max_remain_on_chan =
89e07afb
JB		 1941 nla_get_u32(tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]);
1942
e8b5e24e
JB		 1943 if (auth_supported)
1944 capa->flags |= WPA_DRIVER_FLAGS_SME;
1945 else if (!connect_supported) {
1946 wpa_printf(MSG_INFO, "nl80211: Driver does not support "
1947 "authentication/association or connect commands");
1948 info->error = 1;
1949 }
1950
1951 if (p2p_go_supported && p2p_client_supported)
1952 capa->flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE;
1953 if (p2p_concurrent) {
1954 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
1955 "interface (driver advertised support)");
1956 capa->flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
1957 capa->flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
1958 }
1959
80bc75f1
JM		 1960 return NL_SKIP;
1961}
1962
1963
1964static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv,
1965 struct wiphy_info_data *info)
1966{
1967 struct nl_msg *msg;
1968
1969 os_memset(info, 0, sizeof(*info));
e8b5e24e 1970 info->capa = &drv->capa;
89e07afb 1971
80bc75f1
JM		 1972 msg = nlmsg_alloc();
1973 if (!msg)
1974 return -1;
1975
9fb04070 1976 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY);
80bc75f1 1977
a2e40bb6 1978 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->first_bss.ifindex);
80bc75f1
JM		 1979
1980 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info) == 0)
1981 return 0;
1982 msg = NULL;
1983nla_put_failure:
1984 nlmsg_free(msg);
1985 return -1;
1986}
1987
1988
93d11400 1989static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
80bc75f1
JM		 1990{
1991 struct wiphy_info_data info;
1992 if (wpa_driver_nl80211_get_info(drv, &info))
93d11400 1993 return -1;
e8b5e24e
JB		 1994
1995 if (info.error)
1996 return -1;
1997
80bc75f1 1998 drv->has_capability = 1;
1b2a72e8
JM		 1999 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */
2000 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
2001 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
2002 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
2003 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
2004 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 |
2005 WPA_DRIVER_CAPA_ENC_WEP104 |
2006 WPA_DRIVER_CAPA_ENC_TKIP |
2007 WPA_DRIVER_CAPA_ENC_CCMP;
291b6068
JM		 2008 drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
2009 WPA_DRIVER_AUTH_SHARED |
2010 WPA_DRIVER_AUTH_LEAP;
1b2a72e8 2011
871f4dd0 2012 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES;
0194fedb 2013 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE;
2fee890a 2014 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
4dc03726 2015 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS;
0194fedb 2016
93d11400 2017 return 0;
80bc75f1
JM		 2018}
2019
2020
2a7b66f5
BG		 2021static int wpa_driver_nl80211_init_nl_global(struct nl80211_global *global)
2022{
2023 global->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
2024 if (global->nl_cb == NULL) {
2025 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
2026 "callbacks");
2027 return -1;
2028 }
2029
276e2d67
BG		 2030 if (nl_create_handles(&global->nl, global->nl_cb, "nl"))
2031 return -1;
2032
2033 global->nl80211 = genl_ctrl_search_by_name(global->nl.cache,
2034 "nl80211");
2035 if (global->nl80211 == NULL) {
2036 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not "
2037 "found");
2038 return -1;
2039 }
2040
2a7b66f5
BG		 2041 return 0;
2042}
2043
2044
ba2d0d7d 2045static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv)
3f5285e8 2046{
2a7b66f5 2047 struct nl80211_global *global = drv->global;
9fff9fdc 2048 int ret;
3f5285e8 2049
9fff9fdc 2050 /* Initialize generic netlink and nl80211 */
3f5285e8 2051
2a7b66f5 2052 if (nl_create_handles(&drv->nl_event, global->nl_cb, "event"))
9fff9fdc 2053 goto err3;
9fff9fdc 2054
97865538
JM		 2055 ret = nl_get_multicast_id(drv, "nl80211", "scan");
2056 if (ret >= 0)
a92dfde8 2057 ret = nl_socket_add_membership(drv->nl_event.handle, ret);
97865538
JM		 2058 if (ret < 0) {
2059 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
2060 "membership for scan events: %d (%s)",
2061 ret, strerror(-ret));
2062 goto err4;
2063 }
c2a04078
JM		 2064
2065 ret = nl_get_multicast_id(drv, "nl80211", "mlme");
2066 if (ret >= 0)
a92dfde8 2067 ret = nl_socket_add_membership(drv->nl_event.handle, ret);
c2a04078
JM		 2068 if (ret < 0) {
2069 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
2070 "membership for mlme events: %d (%s)",
2071 ret, strerror(-ret));
2072 goto err4;
2073 }
c2a04078 2074
33c5deb8
JM		 2075 ret = nl_get_multicast_id(drv, "nl80211", "regulatory");
2076 if (ret >= 0)
a92dfde8 2077 ret = nl_socket_add_membership(drv->nl_event.handle, ret);
33c5deb8
JM		 2078 if (ret < 0) {
2079 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast "
2080 "membership for regulatory events: %d (%s)",
2081 ret, strerror(-ret));
2082 /* Continue without regulatory events */
2083 }
2084
a92dfde8 2085 eloop_register_read_sock(nl_socket_get_fd(drv->nl_event.handle),
5582a5d1 2086 wpa_driver_nl80211_event_receive, drv,
a92dfde8 2087 drv->nl_event.handle);
97865538 2088
9fff9fdc
JM		 2089 return 0;
2090
2091err4:
a92dfde8 2092 nl_destroy_handles(&drv->nl_event);
9fff9fdc 2093err3:
9fff9fdc
JM		 2094 return -1;
2095}
2096
2097
8401a6b0
JM		 2098static void wpa_driver_nl80211_rfkill_blocked(void *ctx)
2099{
8401a6b0 2100 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked");
a63063b4
JM		 2101 /*
2102 * This may be for any interface; use ifdown event to disable
2103 * interface.
2104 */
8401a6b0
JM		 2105}
2106
2107
2108static void wpa_driver_nl80211_rfkill_unblocked(void *ctx)
2109{
2110 struct wpa_driver_nl80211_data *drv = ctx;
2111 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked");
c81eff1a
BG		 2112 if (linux_set_iface_flags(drv->global->ioctl_sock,
2113 drv->first_bss.ifname, 1)) {
8401a6b0
JM		 2114 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP "
2115 "after rfkill unblock");
2116 return;
2117 }
a63063b4 2118 /* rtnetlink ifup handler will report interface as enabled */
8401a6b0
JM		 2119}
2120
2121
6859f1cb
BG		 2122static void nl80211_get_phy_name(struct wpa_driver_nl80211_data *drv)
2123{
2124 /* Find phy (radio) to which this interface belongs */
2125 char buf[90], *pos;
2126 int f, rv;
2127
2128 drv->phyname[0] = '\0';
2129 snprintf(buf, sizeof(buf) - 1, "/sys/class/net/%s/phy80211/name",
2130 drv->first_bss.ifname);
2131 f = open(buf, O_RDONLY);
2132 if (f < 0) {
2133 wpa_printf(MSG_DEBUG, "Could not open file %s: %s",
2134 buf, strerror(errno));
2135 return;
2136 }
2137
2138 rv = read(f, drv->phyname, sizeof(drv->phyname) - 1);
2139 close(f);
2140 if (rv < 0) {
2141 wpa_printf(MSG_DEBUG, "Could not read file %s: %s",
2142 buf, strerror(errno));
2143 return;
2144 }
2145
2146 drv->phyname[rv] = '\0';
2147 pos = os_strchr(drv->phyname, '\n');
2148 if (pos)
2149 *pos = '\0';
2150 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s",
2151 drv->first_bss.ifname, drv->phyname);
2152}
2153
2154
f10bfc9a
JM		 2155#ifdef CONFIG_AP
2156static void nl80211_l2_read(void *ctx, const u8 *src_addr, const u8 *buf,
2157 size_t len)
2158{
2159 wpa_printf(MSG_DEBUG, "nl80211: l2_packet read %u",
2160 (unsigned int) len);
2161}
2162#endif /* CONFIG_AP */
2163
2164
9fff9fdc
JM		 2165/**
2166 * wpa_driver_nl80211_init - Initialize nl80211 driver interface
2167 * @ctx: context to be used when calling wpa_supplicant functions,
2168 * e.g., wpa_supplicant_event()
2169 * @ifname: interface name, e.g., wlan0
f2ed8023 2170 * @global_priv: private driver global data from global_init()
9fff9fdc
JM		 2171 * Returns: Pointer to private data, %NULL on failure
2172 */
f2ed8023
JM		 2173static void * wpa_driver_nl80211_init(void *ctx, const char *ifname,
2174 void *global_priv)
9fff9fdc 2175{
9fff9fdc 2176 struct wpa_driver_nl80211_data *drv;
8401a6b0 2177 struct rfkill_config *rcfg;
a2e40bb6 2178 struct i802_bss *bss;
9fff9fdc
JM		 2179
2180 drv = os_zalloc(sizeof(*drv));
2181 if (drv == NULL)
2182 return NULL;
f2ed8023 2183 drv->global = global_priv;
9fff9fdc 2184 drv->ctx = ctx;
a2e40bb6
FF		 2185 bss = &drv->first_bss;
2186 bss->drv = drv;
2187 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname));
9fff9fdc
JM		 2188 drv->monitor_ifidx = -1;
2189 drv->monitor_sock = -1;
b1f625e0 2190 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
9fff9fdc 2191
ba2d0d7d 2192 if (wpa_driver_nl80211_init_nl(drv)) {
bbaf0837
JM		 2193 os_free(drv);
2194 return NULL;
2195 }
9fff9fdc 2196
6859f1cb
BG		 2197 nl80211_get_phy_name(drv);
2198
8401a6b0
JM		 2199 rcfg = os_zalloc(sizeof(*rcfg));
2200 if (rcfg == NULL)
2201 goto failed;
2202 rcfg->ctx = drv;
2203 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname));
2204 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked;
2205 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked;
2206 drv->rfkill = rfkill_init(rcfg);
52169389 2207 if (drv->rfkill == NULL) {
8401a6b0 2208 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available");
52169389
JM		 2209 os_free(rcfg);
2210 }
8401a6b0 2211
08063178 2212 if (wpa_driver_nl80211_finish_drv_init(drv))
bbaf0837 2213 goto failed;
7524cfb1 2214
f10bfc9a
JM		 2215#ifdef CONFIG_AP
2216 drv->l2 = l2_packet_init(ifname, NULL, ETH_P_EAPOL,
2217 nl80211_l2_read, drv, 0);
2218#endif /* CONFIG_AP */
2219
dac12351 2220 if (drv->global) {
c4bb8817 2221 dl_list_add(&drv->global->interfaces, &drv->list);
dac12351
BG		 2222 drv->in_interface_list = 1;
2223 }
c4bb8817 2224
a2e40bb6 2225 return bss;
7524cfb1 2226
bbaf0837 2227failed:
dac12351 2228 wpa_driver_nl80211_deinit(bss);
7524cfb1
JM		 2229 return NULL;
2230}
2231
2232
bd94971e 2233static int nl80211_register_frame(struct wpa_driver_nl80211_data *drv,
5582a5d1 2234 struct nl_handle *nl_handle,
bd94971e 2235 u16 type, const u8 *match, size_t match_len)
58f6fbe0
JM		 2236{
2237 struct nl_msg *msg;
2238 int ret = -1;
2239
2240 msg = nlmsg_alloc();
2241 if (!msg)
2242 return -1;
2243
9fb04070 2244 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION);
58f6fbe0
JM		 2245
2246 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
bd94971e 2247 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type);
58f6fbe0
JM		 2248 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match);
2249
5582a5d1 2250 ret = send_and_recv(drv, nl_handle, msg, NULL, NULL);
58f6fbe0
JM		 2251 msg = NULL;
2252 if (ret) {
5582a5d1
JB		 2253 wpa_printf(MSG_DEBUG, "nl80211: Register frame command "
2254 "failed (type=%u): ret=%d (%s)",
2255 type, ret, strerror(-ret));
2256 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match",
58f6fbe0
JM		 2257 match, match_len);
2258 goto nla_put_failure;
2259 }
2260 ret = 0;
2261nla_put_failure:
2262 nlmsg_free(msg);
2263 return ret;
2264}
2265
2266
bd94971e
JB		 2267static int nl80211_register_action_frame(struct wpa_driver_nl80211_data *drv,
2268 const u8 *match, size_t match_len)
2269{
2270 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4);
a92dfde8 2271 return nl80211_register_frame(drv, drv->nl_event.handle,
5582a5d1 2272 type, match, match_len);
bd94971e
JB		 2273}
2274
2275
58f6fbe0
JM		 2276static int nl80211_register_action_frames(struct wpa_driver_nl80211_data *drv)
2277{
4fe9fa0d 2278#if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING)
046b26a2
JM		 2279 /* GAS Initial Request */
2280 if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0a", 2) < 0)
2281 return -1;
2282 /* GAS Initial Response */
2283 if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0b", 2) < 0)
2284 return -1;
18708aad
JM		 2285 /* GAS Comeback Request */
2286 if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0c", 2) < 0)
2287 return -1;
2288 /* GAS Comeback Response */
2289 if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0d", 2) < 0)
2290 return -1;
4fe9fa0d
JM		 2291#endif /* CONFIG_P2P || CONFIG_INTERWORKING */
2292#ifdef CONFIG_P2P
046b26a2
JM		 2293 /* P2P Public Action */
2294 if (nl80211_register_action_frame(drv,
2295 (u8 *) "\x04\x09\x50\x6f\x9a\x09",
2296 6) < 0)
2297 return -1;
2298 /* P2P Action */
2299 if (nl80211_register_action_frame(drv,
2300 (u8 *) "\x7f\x50\x6f\x9a\x09",
2301 5) < 0)
2302 return -1;
2303#endif /* CONFIG_P2P */
7d878ca7
JM		 2304#ifdef CONFIG_IEEE80211W
2305 /* SA Query Response */
2306 if (nl80211_register_action_frame(drv, (u8 *) "\x08\x01", 2) < 0)
2307 return -1;
2308#endif /* CONFIG_IEEE80211W */
046b26a2 2309
7b90c16a
JM		 2310 /* FT Action frames */
2311 if (nl80211_register_action_frame(drv, (u8 *) "\x06", 1) < 0)
2312 return -1;
2313 else
2314 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT |
2315 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK;
2316
71269b37
JM		 2317 /* WNM - BSS Transition Management Request */
2318 if (nl80211_register_action_frame(drv, (u8 *) "\x0a\x07", 2) < 0)
2319 return -1;
2320
58f6fbe0
JM		 2321 return 0;
2322}
2323
2324
8401a6b0
JM		 2325static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx)
2326{
2327 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL);
2328}
2329
2330
362f781e 2331static int
7524cfb1
JM		 2332wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv)
2333{
a2e40bb6 2334 struct i802_bss *bss = &drv->first_bss;
8401a6b0 2335 int send_rfkill_event = 0;
a2e40bb6
FF		 2336
2337 drv->ifindex = if_nametoindex(bss->ifname);
2338 drv->first_bss.ifindex = drv->ifindex;
a87c9d96 2339
bbaf0837 2340#ifndef HOSTAPD
ff6a158b
JM		 2341 /*
2342 * Make sure the interface starts up in station mode unless this is a
2343 * dynamically added interface (e.g., P2P) that was already configured
2344 * with proper iftype.
2345 */
2346 if ((drv->global == NULL ||
2347 drv->ifindex != drv->global->if_add_ifindex) &&
b1f625e0 2348 wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION) < 0) {
6e8183d7 2349 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver to "
a87c9d96 2350 "use managed mode");
6e8183d7 2351 return -1;
a87c9d96
JM		 2352 }
2353
c81eff1a 2354 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) {
8401a6b0
JM		 2355 if (rfkill_is_blocked(drv->rfkill)) {
2356 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable "
2357 "interface '%s' due to rfkill",
2358 bss->ifname);
a63063b4 2359 drv->if_disabled = 1;
8401a6b0
JM		 2360 send_rfkill_event = 1;
2361 } else {
2362 wpa_printf(MSG_ERROR, "nl80211: Could not set "
2363 "interface '%s' UP", bss->ifname);
2364 return -1;
2365 }
362f781e 2366 }
3f5285e8 2367
36d84860 2368 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex,
e2d02c29 2369 1, IF_OPER_DORMANT);
bbaf0837 2370#endif /* HOSTAPD */
362f781e 2371
2fee890a
JM		 2372 if (wpa_driver_nl80211_capa(drv))
2373 return -1;
2374
c81eff1a
BG		 2375 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
2376 drv->addr))
2136f480 2377 return -1;
f2ed8023 2378
7b90c16a
JM		 2379 if (nl80211_register_action_frames(drv) < 0) {
2380 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action "
2381 "frame processing - ignore for now");
2382 /*
2383 * Older kernel versions did not support this, so ignore the
2384 * error for now. Some functionality may not be available
2385 * because of this.
2386 */
2387 }
58f6fbe0 2388
8401a6b0
JM		 2389 if (send_rfkill_event) {
2390 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill,
2391 drv, drv->ctx);
2392 }
2393
362f781e 2394 return 0;
3f5285e8
JM		 2395}
2396
2397
8a27af5c
JM		 2398static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv)
2399{
2400 struct nl_msg *msg;
2401
2402 msg = nlmsg_alloc();
2403 if (!msg)
2404 return -ENOMEM;
2405
9fb04070 2406 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON);
8a27af5c
JM		 2407 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2408
2409 return send_and_recv_msgs(drv, msg, NULL, NULL);
2410 nla_put_failure:
2411 return -ENOBUFS;
2412}
8a27af5c
JM		 2413
2414
3f5285e8 2415/**
7e5ba1b9
JM		 2416 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface
2417 * @priv: Pointer to private nl80211 data from wpa_driver_nl80211_init()
3f5285e8
JM		 2418 *
2419 * Shut down driver interface and processing of driver events. Free
2420 * private data buffer if one was allocated in wpa_driver_nl80211_init().
2421 */
7e5ba1b9 2422static void wpa_driver_nl80211_deinit(void *priv)
3f5285e8 2423{
a2e40bb6
FF		 2424 struct i802_bss *bss = priv;
2425 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8 2426
f10bfc9a
JM		 2427#ifdef CONFIG_AP
2428 if (drv->l2)
2429 l2_packet_deinit(drv->l2);
2430#endif /* CONFIG_AP */
2431
a92dfde8 2432 if (drv->nl_preq.handle)
5582a5d1 2433 wpa_driver_nl80211_probe_req_report(bss, 0);
e17a2477 2434 if (bss->added_if_into_bridge) {
c81eff1a
BG		 2435 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname,
2436 bss->ifname) < 0)
94627f6c
JM		 2437 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
2438 "interface %s from bridge %s: %s",
e17a2477 2439 bss->ifname, bss->brname, strerror(errno));
94627f6c 2440 }
e17a2477 2441 if (bss->added_bridge) {
c81eff1a 2442 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0)
94627f6c
JM		 2443 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
2444 "bridge %s: %s",
e17a2477 2445 bss->brname, strerror(errno));
94627f6c
JM		 2446 }
2447
460456f8 2448 nl80211_remove_monitor_interface(drv);
8a27af5c 2449
b1f625e0 2450 if (is_ap_interface(drv->nlmode))
8a27af5c 2451 wpa_driver_nl80211_del_beacon(drv);
0915d02c 2452
bbaf0837
JM		 2453#ifdef HOSTAPD
2454 if (drv->last_freq_ht) {
2455 /* Clear HT flags from the driver */
2456 struct hostapd_freq_params freq;
2457 os_memset(&freq, 0, sizeof(freq));
2458 freq.freq = drv->last_freq;
2459 i802_set_freq(priv, &freq);
2460 }
2461
bbaf0837
JM		 2462 if (drv->eapol_sock >= 0) {
2463 eloop_unregister_read_sock(drv->eapol_sock);
2464 close(drv->eapol_sock);
2465 }
2466
2467 if (drv->if_indices != drv->default_if_indices)
2468 os_free(drv->if_indices);
1b648c7e 2469#endif /* HOSTAPD */
3f5285e8 2470
4e5cb1a3
JM		 2471 if (drv->disable_11b_rates)
2472 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
2473
36d84860
BG		 2474 netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, 0,
2475 IF_OPER_UP);
8401a6b0 2476 rfkill_deinit(drv->rfkill);
3f5285e8 2477
bbaf0837
JM		 2478 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
2479
c81eff1a 2480 (void) linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0);
b1f625e0 2481 wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION);
3f5285e8 2482
a92dfde8 2483 eloop_unregister_read_sock(nl_socket_get_fd(drv->nl_event.handle));
a92dfde8 2484 nl_destroy_handles(&drv->nl_event);
3f5285e8 2485
3812464c
JM		 2486 os_free(drv->filter_ssids);
2487
dac12351 2488 if (drv->in_interface_list)
f2ed8023
JM		 2489 dl_list_del(&drv->list);
2490
3f5285e8
JM		 2491 os_free(drv);
2492}
2493
2494
2495/**
2496 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion
ad1e68e6 2497 * @eloop_ctx: Driver private data
3f5285e8
JM		 2498 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init()
2499 *
2500 * This function can be used as registered timeout when starting a scan to
2501 * generate a scan completed event if the driver does not report this.
2502 */
2503static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx)
2504{
ad1e68e6 2505 struct wpa_driver_nl80211_data *drv = eloop_ctx;
b1f625e0 2506 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) {
a2e40bb6 2507 wpa_driver_nl80211_set_mode(&drv->first_bss,
b1f625e0
EP		 2508 drv->ap_scan_as_station);
2509 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
ad1e68e6 2510 }
3f5285e8
JM		 2511 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results");
2512 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL);
2513}
2514
2515
2516/**
2517 * wpa_driver_nl80211_scan - Request the driver to initiate scan
ad1e68e6 2518 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
6a1063e0 2519 * @params: Scan parameters
3f5285e8
JM		 2520 * Returns: 0 on success, -1 on failure
2521 */
6a1063e0
JM		 2522static int wpa_driver_nl80211_scan(void *priv,
2523 struct wpa_driver_scan_params *params)
3f5285e8 2524{
a2e40bb6
FF		 2525 struct i802_bss *bss = priv;
2526 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8 2527 int ret = 0, timeout;
47185fc7 2528 struct nl_msg *msg, *ssids, *freqs, *rates;
6a1063e0 2529 size_t i;
3f5285e8 2530
0e75527f
JM		 2531 msg = nlmsg_alloc();
2532 ssids = nlmsg_alloc();
d3a98225 2533 freqs = nlmsg_alloc();
47185fc7
RM		 2534 rates = nlmsg_alloc();
2535 if (!msg || !ssids || !freqs || !rates) {
0e75527f
JM		 2536 nlmsg_free(msg);
2537 nlmsg_free(ssids);
d3a98225 2538 nlmsg_free(freqs);
47185fc7 2539 nlmsg_free(rates);
3f5285e8
JM		 2540 return -1;
2541 }
2542
3812464c
JM		 2543 os_free(drv->filter_ssids);
2544 drv->filter_ssids = params->filter_ssids;
2545 params->filter_ssids = NULL;
2546 drv->num_filter_ssids = params->num_filter_ssids;
2547
9fb04070 2548 nl80211_cmd(drv, msg, 0, NL80211_CMD_TRIGGER_SCAN);
0e75527f
JM		 2549
2550 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3f5285e8 2551
6a1063e0 2552 for (i = 0; i < params->num_ssids; i++) {
9fad706c
JM		 2553 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID",
2554 params->ssids[i].ssid,
2555 params->ssids[i].ssid_len);
6a1063e0
JM		 2556 NLA_PUT(ssids, i + 1, params->ssids[i].ssid_len,
2557 params->ssids[i].ssid);
3f5285e8 2558 }
6a1063e0
JM		 2559 if (params->num_ssids)
2560 nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids);
3f5285e8 2561
d173df52 2562 if (params->extra_ies) {
9fad706c
JM		 2563 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan extra IEs",
2564 params->extra_ies, params->extra_ies_len);
d173df52
JM		 2565 NLA_PUT(msg, NL80211_ATTR_IE, params->extra_ies_len,
2566 params->extra_ies);
2567 }
2568
d3a98225 2569 if (params->freqs) {
9fad706c
JM		 2570 for (i = 0; params->freqs[i]; i++) {
2571 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u "
2572 "MHz", params->freqs[i]);
d3a98225 2573 NLA_PUT_U32(freqs, i + 1, params->freqs[i]);
9fad706c 2574 }
d3a98225
JM		 2575 nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES, freqs);
2576 }
2577
47185fc7
RM		 2578 if (params->p2p_probe) {
2579 /*
2580 * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates
2581 * by masking out everything else apart from the OFDM rates 6,
2582 * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz
2583 * rates are left enabled.
2584 */
2585 NLA_PUT(rates, NL80211_BAND_2GHZ, 8,
2586 "\x0c\x12\x18\x24\x30\x48\x60\x6c");
2587 nla_put_nested(msg, NL80211_ATTR_SCAN_SUPP_RATES, rates);
2588 }
2589
0e75527f
JM		 2590 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2591 msg = NULL;
2592 if (ret) {
2593 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d "
2594 "(%s)", ret, strerror(-ret));
ad1e68e6 2595#ifdef HOSTAPD
b1f625e0 2596 if (is_ap_interface(drv->nlmode)) {
ad1e68e6
JM		 2597 /*
2598 * mac80211 does not allow scan requests in AP mode, so
2599 * try to do this in station mode.
2600 */
b1f625e0
EP		 2601 if (wpa_driver_nl80211_set_mode(
2602 bss, NL80211_IFTYPE_STATION))
ad1e68e6
JM		 2603 goto nla_put_failure;
2604
2605 if (wpa_driver_nl80211_scan(drv, params)) {
b1f625e0 2606 wpa_driver_nl80211_set_mode(bss, drv->nlmode);
ad1e68e6
JM		 2607 goto nla_put_failure;
2608 }
2609
2610 /* Restore AP mode when processing scan results */
b1f625e0 2611 drv->ap_scan_as_station = drv->nlmode;
ad1e68e6
JM		 2612 ret = 0;
2613 } else
2614 goto nla_put_failure;
2615#else /* HOSTAPD */
0e75527f 2616 goto nla_put_failure;
ad1e68e6 2617#endif /* HOSTAPD */
3f5285e8
JM		 2618 }
2619
2620 /* Not all drivers generate "scan completed" wireless event, so try to
2621 * read results after a timeout. */
0e75527f 2622 timeout = 10;
3f5285e8
JM		 2623 if (drv->scan_complete_events) {
2624 /*
d173df52
JM		 2625 * The driver seems to deliver events to notify when scan is
2626 * complete, so use longer timeout to avoid race conditions
2627 * with scanning and following association request.
3f5285e8
JM		 2628 */
2629 timeout = 30;
2630 }
2631 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d "
2632 "seconds", ret, timeout);
2633 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
0e75527f
JM		 2634 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout,
2635 drv, drv->ctx);
3f5285e8 2636
0e75527f
JM		 2637nla_put_failure:
2638 nlmsg_free(ssids);
2639 nlmsg_free(msg);
d3a98225 2640 nlmsg_free(freqs);
47185fc7 2641 nlmsg_free(rates);
3f5285e8
JM		 2642 return ret;
2643}
2644
2645
d21c63b9
LC		 2646/**
2647 * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan
2648 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
2649 * @params: Scan parameters
2650 * @interval: Interval between scan cycles in milliseconds
2651 * Returns: 0 on success, -1 on failure or if not supported
2652 */
2653static int wpa_driver_nl80211_sched_scan(void *priv,
2654 struct wpa_driver_scan_params *params,
2655 u32 interval)
2656{
2657 struct i802_bss *bss = priv;
2658 struct wpa_driver_nl80211_data *drv = bss->drv;
2659 int ret = 0;
bd525934 2660 struct nl_msg *msg, *ssids, *freqs, *match_set_ssid, *match_sets;
d21c63b9
LC		 2661 size_t i;
2662
2663 msg = nlmsg_alloc();
2664 ssids = nlmsg_alloc();
2665 freqs = nlmsg_alloc();
2666 if (!msg || !ssids || !freqs) {
2667 nlmsg_free(msg);
2668 nlmsg_free(ssids);
2669 nlmsg_free(freqs);
2670 return -1;
2671 }
2672
2673 os_free(drv->filter_ssids);
2674 drv->filter_ssids = params->filter_ssids;
2675 params->filter_ssids = NULL;
2676 drv->num_filter_ssids = params->num_filter_ssids;
2677
9fb04070 2678 nl80211_cmd(drv, msg, 0, NL80211_CMD_START_SCHED_SCAN);
d21c63b9
LC		 2679
2680 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2681
2682 NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval);
2683
bd525934
LC		 2684 if (drv->num_filter_ssids) {
2685 match_sets = nlmsg_alloc();
2686
2687 for (i = 0; i < drv->num_filter_ssids; i++) {
2688 wpa_hexdump_ascii(MSG_MSGDUMP,
2689 "nl80211: Sched scan filter SSID",
2690 drv->filter_ssids[i].ssid,
2691 drv->filter_ssids[i].ssid_len);
2692
2693 match_set_ssid = nlmsg_alloc();
2694 nla_put(match_set_ssid,
2695 NL80211_ATTR_SCHED_SCAN_MATCH_SSID,
2696 drv->filter_ssids[i].ssid_len,
2697 drv->filter_ssids[i].ssid);
2698
2699 nla_put_nested(match_sets, i + 1, match_set_ssid);
2700
2701 nlmsg_free(match_set_ssid);
2702 }
2703
2704 nla_put_nested(msg, NL80211_ATTR_SCHED_SCAN_MATCH,
2705 match_sets);
2706 nlmsg_free(match_sets);
2707 }
2708
d21c63b9
LC		 2709 for (i = 0; i < params->num_ssids; i++) {
2710 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Sched scan SSID",
2711 params->ssids[i].ssid,
2712 params->ssids[i].ssid_len);
2713 NLA_PUT(ssids, i + 1, params->ssids[i].ssid_len,
2714 params->ssids[i].ssid);
2715 }
2716 if (params->num_ssids)
2717 nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids);
2718
2719 if (params->extra_ies) {
2720 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Sched scan extra IEs",
2721 params->extra_ies, params->extra_ies_len);
2722 NLA_PUT(msg, NL80211_ATTR_IE, params->extra_ies_len,
2723 params->extra_ies);
2724 }
2725
2726 if (params->freqs) {
2727 for (i = 0; params->freqs[i]; i++) {
2728 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u "
2729 "MHz", params->freqs[i]);
2730 NLA_PUT_U32(freqs, i + 1, params->freqs[i]);
2731 }
2732 nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES, freqs);
2733 }
2734
2735 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2736
2737 /* TODO: if we get an error here, we should fall back to normal scan */
2738
2739 msg = NULL;
2740 if (ret) {
2741 wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: "
2742 "ret=%d (%s)", ret, strerror(-ret));
2743 goto nla_put_failure;
2744 }
2745
2746 wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - "
2747 "scan interval %d msec", ret, interval);
2748
2749nla_put_failure:
2750 nlmsg_free(ssids);
2751 nlmsg_free(msg);
2752 nlmsg_free(freqs);
2753 return ret;
2754}
2755
2756
2757/**
2758 * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan
2759 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
2760 * Returns: 0 on success, -1 on failure or if not supported
2761 */
2762static int wpa_driver_nl80211_stop_sched_scan(void *priv)
2763{
2764 struct i802_bss *bss = priv;
2765 struct wpa_driver_nl80211_data *drv = bss->drv;
2766 int ret = 0;
2767 struct nl_msg *msg;
2768
2769 msg = nlmsg_alloc();
2770 if (!msg)
2771 return -1;
2772
9fb04070 2773 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN);
d21c63b9
LC		 2774
2775 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2776
2777 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2778 msg = NULL;
2779 if (ret) {
2780 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: "
2781 "ret=%d (%s)", ret, strerror(-ret));
2782 goto nla_put_failure;
2783 }
2784
2785 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret);
2786
2787nla_put_failure:
2788 nlmsg_free(msg);
2789 return ret;
2790}
2791
2792
3812464c
JM		 2793static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie)
2794{
2795 const u8 *end, *pos;
2796
2797 if (ies == NULL)
2798 return NULL;
2799
2800 pos = ies;
2801 end = ies + ies_len;
2802
2803 while (pos + 1 < end) {
2804 if (pos + 2 + pos[1] > end)
2805 break;
2806 if (pos[0] == ie)
2807 return pos;
2808 pos += 2 + pos[1];
2809 }
2810
2811 return NULL;
2812}
2813
2814
2815static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv,
2816 const u8 *ie, size_t ie_len)
2817{
2818 const u8 *ssid;
2819 size_t i;
2820
2821 if (drv->filter_ssids == NULL)
2822 return 0;
2823
2824 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID);
2825 if (ssid == NULL)
2826 return 1;
2827
2828 for (i = 0; i < drv->num_filter_ssids; i++) {
2829 if (ssid[1] == drv->filter_ssids[i].ssid_len &&
2830 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) ==
2831 0)
2832 return 0;
2833 }
2834
2835 return 1;
2836}
2837
2838
b3db1e1c 2839static int bss_info_handler(struct nl_msg *msg, void *arg)
3f5285e8 2840{
b3db1e1c
JM		 2841 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2842 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2843 struct nlattr *bss[NL80211_BSS_MAX + 1];
2844 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
2845 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC },
2846 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 },
2847 [NL80211_BSS_TSF] = { .type = NLA_U64 },
2848 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 },
2849 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 },
2850 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC },
2851 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 },
2852 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 },
e6b8efeb 2853 [NL80211_BSS_STATUS] = { .type = NLA_U32 },
b3ad11bb 2854 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 },
8c090654 2855 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC },
b3db1e1c 2856 };
3812464c
JM		 2857 struct nl80211_bss_info_arg *_arg = arg;
2858 struct wpa_scan_results *res = _arg->res;
3f5285e8
JM		 2859 struct wpa_scan_res **tmp;
2860 struct wpa_scan_res *r;
8c090654
JM		 2861 const u8 *ie, *beacon_ie;
2862 size_t ie_len, beacon_ie_len;
2863 u8 *pos;
46957a9b 2864 size_t i;
3f5285e8 2865
b3db1e1c
JM		 2866 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2867 genlmsg_attrlen(gnlh, 0), NULL);
2868 if (!tb[NL80211_ATTR_BSS])
2869 return NL_SKIP;
2870 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS],
2871 bss_policy))
2872 return NL_SKIP;
f5a8d422
JM		 2873 if (bss[NL80211_BSS_STATUS]) {
2874 enum nl80211_bss_status status;
2875 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
2876 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
2877 bss[NL80211_BSS_FREQUENCY]) {
2878 _arg->assoc_freq =
2879 nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
2880 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz",
2881 _arg->assoc_freq);
2882 }
20f5a4c2
JM		 2883 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
2884 bss[NL80211_BSS_BSSID]) {
2885 os_memcpy(_arg->assoc_bssid,
2886 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN);
2887 wpa_printf(MSG_DEBUG, "nl80211: Associated with "
2888 MACSTR, MAC2STR(_arg->assoc_bssid));
2889 }
f5a8d422
JM		 2890 }
2891 if (!res)
2892 return NL_SKIP;
b3db1e1c
JM		 2893 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) {
2894 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
2895 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
2896 } else {
2897 ie = NULL;
2898 ie_len = 0;
2899 }
8c090654
JM		 2900 if (bss[NL80211_BSS_BEACON_IES]) {
2901 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]);
2902 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]);
2903 } else {
2904 beacon_ie = NULL;
2905 beacon_ie_len = 0;
2906 }
3f5285e8 2907
3812464c
JM		 2908 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie,
2909 ie ? ie_len : beacon_ie_len))
2910 return NL_SKIP;
2911
8c090654 2912 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len);
3f5285e8 2913 if (r == NULL)
b3db1e1c
JM		 2914 return NL_SKIP;
2915 if (bss[NL80211_BSS_BSSID])
2916 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]),
2917 ETH_ALEN);
2918 if (bss[NL80211_BSS_FREQUENCY])
2919 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
2920 if (bss[NL80211_BSS_BEACON_INTERVAL])
2921 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]);
2922 if (bss[NL80211_BSS_CAPABILITY])
2923 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]);
7c2849d2
JM		 2924 r->flags |= WPA_SCAN_NOISE_INVALID;
2925 if (bss[NL80211_BSS_SIGNAL_MBM]) {
b3db1e1c 2926 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]);
7c2849d2
JM		 2927 r->level /= 100; /* mBm to dBm */
2928 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID;
2929 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) {
2930 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]);
2931 r->flags |= WPA_SCAN_LEVEL_INVALID;
2932 } else
2933 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID;
b3db1e1c
JM		 2934 if (bss[NL80211_BSS_TSF])
2935 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]);
b3ad11bb
JM		 2936 if (bss[NL80211_BSS_SEEN_MS_AGO])
2937 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]);
b3db1e1c 2938 r->ie_len = ie_len;
8c090654
JM		 2939 pos = (u8 *) (r + 1);
2940 if (ie) {
2941 os_memcpy(pos, ie, ie_len);
2942 pos += ie_len;
2943 }
2944 r->beacon_ie_len = beacon_ie_len;
2945 if (beacon_ie)
2946 os_memcpy(pos, beacon_ie, beacon_ie_len);
3f5285e8 2947
e6b8efeb
JM		 2948 if (bss[NL80211_BSS_STATUS]) {
2949 enum nl80211_bss_status status;
2950 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
2951 switch (status) {
2952 case NL80211_BSS_STATUS_AUTHENTICATED:
2953 r->flags |= WPA_SCAN_AUTHENTICATED;
2954 break;
2955 case NL80211_BSS_STATUS_ASSOCIATED:
2956 r->flags |= WPA_SCAN_ASSOCIATED;
2957 break;
2958 default:
2959 break;
2960 }
2961 }
2962
46957a9b
JM		 2963 /*
2964 * cfg80211 maintains separate BSS table entries for APs if the same
2965 * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does
2966 * not use frequency as a separate key in the BSS table, so filter out
2967 * duplicated entries. Prefer associated BSS entry in such a case in
2968 * order to get the correct frequency into the BSS table.
2969 */
2970 for (i = 0; i < res->num; i++) {
2971 const u8 *s1, *s2;
2972 if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0)
2973 continue;
2974
2975 s1 = nl80211_get_ie((u8 *) (res->res[i] + 1),
2976 res->res[i]->ie_len, WLAN_EID_SSID);
2977 s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID);
2978 if (s1 == NULL || s2 == NULL || s1[1] != s2[1] ||
2979 os_memcmp(s1, s2, 2 + s1[1]) != 0)
2980 continue;
2981
2982 /* Same BSSID,SSID was already included in scan results */
2983 wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result "
2984 "for " MACSTR, MAC2STR(r->bssid));
2985
2986 if ((r->flags & WPA_SCAN_ASSOCIATED) &&
2987 !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) {
2988 os_free(res->res[i]);
2989 res->res[i] = r;
2990 } else
2991 os_free(r);
2992 return NL_SKIP;
2993 }
2994
3f5285e8
JM		 2995 tmp = os_realloc(res->res,
2996 (res->num + 1) * sizeof(struct wpa_scan_res *));
2997 if (tmp == NULL) {
2998 os_free(r);
b3db1e1c 2999 return NL_SKIP;
3f5285e8
JM		 3000 }
3001 tmp[res->num++] = r;
3002 res->res = tmp;
b3db1e1c
JM		 3003
3004 return NL_SKIP;
3f5285e8 3005}
b3db1e1c 3006
3f5285e8 3007
d72aad94
JM		 3008static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv,
3009 const u8 *addr)
3010{
3011 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
3012 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state "
582507be 3013 "mismatch (" MACSTR ")", MAC2STR(addr));
d72aad94
JM		 3014 wpa_driver_nl80211_mlme(drv, addr,
3015 NL80211_CMD_DEAUTHENTICATE,
77339912 3016 WLAN_REASON_PREV_AUTH_NOT_VALID, 1);
d72aad94
JM		 3017 }
3018}
3019
3020
e6b8efeb
JM		 3021static void wpa_driver_nl80211_check_bss_status(
3022 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res)
3023{
3024 size_t i;
3025
3026 for (i = 0; i < res->num; i++) {
3027 struct wpa_scan_res *r = res->res[i];
3028 if (r->flags & WPA_SCAN_AUTHENTICATED) {
3029 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
3030 "indicates BSS status with " MACSTR
3031 " as authenticated",
3032 MAC2STR(r->bssid));
b1f625e0 3033 if (is_sta_interface(drv->nlmode) &&
e6b8efeb
JM		 3034 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 &&
3035 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) !=
3036 0) {
3037 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID"
3038 " in local state (auth=" MACSTR
3039 " assoc=" MACSTR ")",
3040 MAC2STR(drv->auth_bssid),
3041 MAC2STR(drv->bssid));
582507be 3042 clear_state_mismatch(drv, r->bssid);
e6b8efeb
JM		 3043 }
3044 }
3045
3046 if (r->flags & WPA_SCAN_ASSOCIATED) {
3047 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
3048 "indicate BSS status with " MACSTR
3049 " as associated",
3050 MAC2STR(r->bssid));
b1f625e0 3051 if (is_sta_interface(drv->nlmode) &&
e6b8efeb
JM		 3052 !drv->associated) {
3053 wpa_printf(MSG_DEBUG, "nl80211: Local state "
3054 "(not associated) does not match "
3055 "with BSS state");
d72aad94 3056 clear_state_mismatch(drv, r->bssid);
b1f625e0 3057 } else if (is_sta_interface(drv->nlmode) &&
e6b8efeb
JM		 3058 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) !=
3059 0) {
3060 wpa_printf(MSG_DEBUG, "nl80211: Local state "
3061 "(associated with " MACSTR ") does "
3062 "not match with BSS state",
d72aad94
JM		 3063 MAC2STR(drv->bssid));
3064 clear_state_mismatch(drv, r->bssid);
3065 clear_state_mismatch(drv, drv->bssid);
e6b8efeb
JM		 3066 }
3067 }
3068 }
3069}
3070
3071
7e5ba1b9 3072static struct wpa_scan_results *
8856462d 3073nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv)
3f5285e8 3074{
b3db1e1c 3075 struct nl_msg *msg;
3f5285e8 3076 struct wpa_scan_results *res;
b3db1e1c 3077 int ret;
3812464c 3078 struct nl80211_bss_info_arg arg;
3f5285e8
JM		 3079
3080 res = os_zalloc(sizeof(*res));
b3db1e1c 3081 if (res == NULL)
8e2c104f 3082 return NULL;
b3db1e1c
JM		 3083 msg = nlmsg_alloc();
3084 if (!msg)
3085 goto nla_put_failure;
3f5285e8 3086
9fb04070 3087 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
b3db1e1c 3088 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3f5285e8 3089
3812464c
JM		 3090 arg.drv = drv;
3091 arg.res = res;
3092 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
b3db1e1c
JM		 3093 msg = NULL;
3094 if (ret == 0) {
3095 wpa_printf(MSG_DEBUG, "Received scan results (%lu BSSes)",
3096 (unsigned long) res->num);
3097 return res;
3f5285e8 3098 }
b3db1e1c
JM		 3099 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
3100 "(%s)", ret, strerror(-ret));
3101nla_put_failure:
3102 nlmsg_free(msg);
3103 wpa_scan_results_free(res);
3104 return NULL;
3f5285e8
JM		 3105}
3106
3107
8856462d
JM		 3108/**
3109 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results
3110 * @priv: Pointer to private wext data from wpa_driver_nl80211_init()
3111 * Returns: Scan results on success, -1 on failure
3112 */
3113static struct wpa_scan_results *
3114wpa_driver_nl80211_get_scan_results(void *priv)
3115{
a2e40bb6
FF		 3116 struct i802_bss *bss = priv;
3117 struct wpa_driver_nl80211_data *drv = bss->drv;
8856462d
JM		 3118 struct wpa_scan_results *res;
3119
3120 res = nl80211_get_scan_results(drv);
3121 if (res)
3122 wpa_driver_nl80211_check_bss_status(drv, res);
3123 return res;
3124}
3125
3126
3127static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv)
3128{
3129 struct wpa_scan_results *res;
3130 size_t i;
3131
3132 res = nl80211_get_scan_results(drv);
3133 if (res == NULL) {
3134 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results");
3135 return;
3136 }
3137
3138 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump");
3139 for (i = 0; i < res->num; i++) {
3140 struct wpa_scan_res *r = res->res[i];
3141 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s",
3142 (int) i, (int) res->num, MAC2STR(r->bssid),
3143 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "",
3144 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : "");
3145 }
3146
3147 wpa_scan_results_free(res);
3148}
3149
3150
642187d6 3151static int wpa_driver_nl80211_set_key(const char *ifname, void *priv,
71934751
JM		 3152 enum wpa_alg alg, const u8 *addr,
3153 int key_idx, int set_tx,
642187d6
JM		 3154 const u8 *seq, size_t seq_len,
3155 const u8 *key, size_t key_len)
3f5285e8 3156{
a2e40bb6
FF		 3157 struct i802_bss *bss = priv;
3158 struct wpa_driver_nl80211_data *drv = bss->drv;
642187d6 3159 int ifindex = if_nametoindex(ifname);
3f5285e8 3160 struct nl_msg *msg;
1ad1cdc2 3161 int ret;
3f5285e8 3162
1ad1cdc2
JM		 3163 wpa_printf(MSG_DEBUG, "%s: ifindex=%d alg=%d addr=%p key_idx=%d "
3164 "set_tx=%d seq_len=%lu key_len=%lu",
3165 __func__, ifindex, alg, addr, key_idx, set_tx,
3f5285e8
JM		 3166 (unsigned long) seq_len, (unsigned long) key_len);
3167
3168 msg = nlmsg_alloc();
1ad1cdc2
JM		 3169 if (!msg)
3170 return -ENOMEM;
3f5285e8
JM		 3171
3172 if (alg == WPA_ALG_NONE) {
9fb04070 3173 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY);
3f5285e8 3174 } else {
9fb04070 3175 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY);
3f5285e8 3176 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key);
d723bab4
JM		 3177 switch (alg) {
3178 case WPA_ALG_WEP:
3179 if (key_len == 5)
3180 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
3181 WLAN_CIPHER_SUITE_WEP40);
3182 else
3183 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
3184 WLAN_CIPHER_SUITE_WEP104);
3185 break;
3186 case WPA_ALG_TKIP:
3187 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
3188 WLAN_CIPHER_SUITE_TKIP);
3189 break;
3190 case WPA_ALG_CCMP:
3191 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
3192 WLAN_CIPHER_SUITE_CCMP);
3193 break;
3194 case WPA_ALG_IGTK:
3195 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
3196 WLAN_CIPHER_SUITE_AES_CMAC);
3197 break;
3198 default:
3199 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
3200 "algorithm %d", __func__, alg);
3f5285e8
JM		 3201 nlmsg_free(msg);
3202 return -1;
3203 }
3204 }
3205
849ef835 3206 if (seq && seq_len)
1ad1cdc2
JM		 3207 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq);
3208
0382097e 3209 if (addr && !is_broadcast_ether_addr(addr)) {
3f5285e8
JM		 3210 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr));
3211 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
89c38e32
JM		 3212
3213 if (alg != WPA_ALG_WEP && key_idx && !set_tx) {
3214 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK");
3215 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE,
3216 NL80211_KEYTYPE_GROUP);
3217 }
60ea8187
JM		 3218 } else if (addr && is_broadcast_ether_addr(addr)) {
3219 struct nl_msg *types;
3220 int err;
3221 wpa_printf(MSG_DEBUG, " broadcast key");
3222 types = nlmsg_alloc();
3223 if (!types)
3224 goto nla_put_failure;
3225 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
3226 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
3227 types);
3228 nlmsg_free(types);
3229 if (err)
3230 goto nla_put_failure;
3f5285e8
JM		 3231 }
3232 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1ad1cdc2 3233 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
3f5285e8 3234
1ad1cdc2 3235 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
15664ad0 3236 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE)
1ad1cdc2
JM		 3237 ret = 0;
3238 if (ret)
3239 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)",
3240 ret, strerror(-ret));
3f5285e8 3241
1ad1cdc2
JM		 3242 /*
3243 * If we failed or don't need to set the default TX key (below),
3244 * we're done here.
3245 */
3246 if (ret || !set_tx || alg == WPA_ALG_NONE)
3247 return ret;
b1f625e0 3248 if (is_ap_interface(drv->nlmode) && addr &&
0382097e 3249 !is_broadcast_ether_addr(addr))
de12717a 3250 return ret;
3f5285e8 3251
1ad1cdc2
JM		 3252 msg = nlmsg_alloc();
3253 if (!msg)
3254 return -ENOMEM;
3f5285e8 3255
9fb04070 3256 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY);
1ad1cdc2
JM		 3257 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
3258 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
3259 if (alg == WPA_ALG_IGTK)
3260 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT);
3261 else
3262 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
60ea8187
JM		 3263 if (addr && is_broadcast_ether_addr(addr)) {
3264 struct nl_msg *types;
3265 int err;
3266 types = nlmsg_alloc();
3267 if (!types)
3268 goto nla_put_failure;
3269 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
3270 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
3271 types);
3272 nlmsg_free(types);
3273 if (err)
3274 goto nla_put_failure;
3275 } else if (addr) {
3276 struct nl_msg *types;
3277 int err;
3278 types = nlmsg_alloc();
3279 if (!types)
3280 goto nla_put_failure;
3281 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_UNICAST);
3282 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
3283 types);
3284 nlmsg_free(types);
3285 if (err)
3286 goto nla_put_failure;
3287 }
3f5285e8 3288
1ad1cdc2
JM		 3289 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3290 if (ret == -ENOENT)
3291 ret = 0;
3292 if (ret)
3293 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; "
3294 "err=%d %s)", ret, strerror(-ret));
3295 return ret;
3f5285e8
JM		 3296
3297nla_put_failure:
6241fcb1 3298 return -ENOBUFS;
3f5285e8
JM		 3299}
3300
3301
71934751 3302static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg,
0194fedb
JB		 3303 int key_idx, int defkey,
3304 const u8 *seq, size_t seq_len,
3305 const u8 *key, size_t key_len)
3306{
3307 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY);
3308 if (!key_attr)
3309 return -1;
3310
3311 if (defkey && alg == WPA_ALG_IGTK)
3312 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT);
3313 else if (defkey)
3314 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
3315
3316 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx);
3317
d723bab4
JM		 3318 switch (alg) {
3319 case WPA_ALG_WEP:
3320 if (key_len == 5)
2aa5f847
JM		 3321 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
3322 WLAN_CIPHER_SUITE_WEP40);
d723bab4 3323 else
2aa5f847
JM		 3324 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
3325 WLAN_CIPHER_SUITE_WEP104);
d723bab4
JM		 3326 break;
3327 case WPA_ALG_TKIP:
2aa5f847 3328 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP);
d723bab4
JM		 3329 break;
3330 case WPA_ALG_CCMP:
2aa5f847 3331 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP);
d723bab4
JM		 3332 break;
3333 case WPA_ALG_IGTK:
2aa5f847
JM		 3334 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
3335 WLAN_CIPHER_SUITE_AES_CMAC);
d723bab4
JM		 3336 break;
3337 default:
3338 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
3339 "algorithm %d", __func__, alg);
0194fedb 3340 return -1;
d723bab4 3341 }
0194fedb
JB		 3342
3343 if (seq && seq_len)
3344 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq);
3345
3346 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key);
3347
3348 nla_nest_end(msg, key_attr);
3349
3350 return 0;
3351 nla_put_failure:
3352 return -1;
3353}
3354
c811d5bc 3355
cfaab580
ZY		 3356static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params,
3357 struct nl_msg *msg)
3358{
3359 int i, privacy = 0;
3360 struct nlattr *nl_keys, *nl_key;
3361
3362 for (i = 0; i < 4; i++) {
3363 if (!params->wep_key[i])
3364 continue;
3365 privacy = 1;
3366 break;
3367 }
ce04af5a
JM		 3368 if (params->wps == WPS_MODE_PRIVACY)
3369 privacy = 1;
3370 if (params->pairwise_suite &&
3371 params->pairwise_suite != WPA_CIPHER_NONE)
3372 privacy = 1;
3373
cfaab580
ZY		 3374 if (!privacy)
3375 return 0;
3376
3377 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
3378
3379 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS);
3380 if (!nl_keys)
3381 goto nla_put_failure;
3382
3383 for (i = 0; i < 4; i++) {
3384 if (!params->wep_key[i])
3385 continue;
3386
3387 nl_key = nla_nest_start(msg, i);
3388 if (!nl_key)
3389 goto nla_put_failure;
3390
3391 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i],
3392 params->wep_key[i]);
3393 if (params->wep_key_len[i] == 5)
3394 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
3395 WLAN_CIPHER_SUITE_WEP40);
3396 else
3397 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
3398 WLAN_CIPHER_SUITE_WEP104);
3399
3400 NLA_PUT_U8(msg, NL80211_KEY_IDX, i);
3401
3402 if (i == params->wep_tx_keyidx)
3403 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
3404
3405 nla_nest_end(msg, nl_key);
3406 }
3407 nla_nest_end(msg, nl_keys);
3408
3409 return 0;
3410
3411nla_put_failure:
3412 return -ENOBUFS;
3413}
3414
3415
c2a04078 3416static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
77339912
JM		 3417 const u8 *addr, int cmd, u16 reason_code,
3418 int local_state_change)
c2a04078
JM		 3419{
3420 int ret = -1;
3421 struct nl_msg *msg;
3422
3423 msg = nlmsg_alloc();
3424 if (!msg)
3425 return -1;
3426
9fb04070 3427 nl80211_cmd(drv, msg, 0, cmd);
c2a04078
JM		 3428
3429 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3430 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code);
3431 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
77339912
JM		 3432 if (local_state_change)
3433 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
c2a04078
JM		 3434
3435 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3436 msg = NULL;
3437 if (ret) {
3438 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
3439 "(%s)", ret, strerror(-ret));
3440 goto nla_put_failure;
3441 }
3442 ret = 0;
3443
3444nla_put_failure:
3445 nlmsg_free(msg);
3446 return ret;
3447}
3f5285e8
JM		 3448
3449
cfaab580
ZY		 3450static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv,
3451 const u8 *addr, int reason_code)
3452{
2e75a2b3
JM		 3453 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)",
3454 __func__, MAC2STR(addr), reason_code);
cfaab580
ZY		 3455 drv->associated = 0;
3456 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISCONNECT,
77339912 3457 reason_code, 0);
cfaab580
ZY		 3458}
3459
3460
3f5285e8 3461static int wpa_driver_nl80211_deauthenticate(void *priv, const u8 *addr,
c2a04078 3462 int reason_code)
3f5285e8 3463{
a2e40bb6
FF		 3464 struct i802_bss *bss = priv;
3465 struct wpa_driver_nl80211_data *drv = bss->drv;
cfaab580
ZY		 3466 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
3467 return wpa_driver_nl80211_disconnect(drv, addr, reason_code);
2e75a2b3
JM		 3468 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)",
3469 __func__, MAC2STR(addr), reason_code);
13405f35 3470 drv->associated = 0;
21bdbe38
JM		 3471 if (drv->nlmode == NL80211_IFTYPE_ADHOC)
3472 return nl80211_leave_ibss(drv);
c2a04078 3473 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE,
77339912 3474 reason_code, 0);
3f5285e8
JM		 3475}
3476
3477
3478static int wpa_driver_nl80211_disassociate(void *priv, const u8 *addr,
c2a04078 3479 int reason_code)
3f5285e8 3480{
a2e40bb6
FF		 3481 struct i802_bss *bss = priv;
3482 struct wpa_driver_nl80211_data *drv = bss->drv;
cfaab580
ZY		 3483 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
3484 return wpa_driver_nl80211_disconnect(drv, addr, reason_code);
c2a04078 3485 wpa_printf(MSG_DEBUG, "%s", __func__);
13405f35 3486 drv->associated = 0;
c2a04078 3487 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISASSOCIATE,
77339912 3488 reason_code, 0);
3f5285e8
JM		 3489}
3490
3491
c2a04078
JM		 3492static int wpa_driver_nl80211_authenticate(
3493 void *priv, struct wpa_driver_auth_params *params)
3494{
a2e40bb6
FF		 3495 struct i802_bss *bss = priv;
3496 struct wpa_driver_nl80211_data *drv = bss->drv;
a0b2f99b 3497 int ret = -1, i;
c2a04078
JM		 3498 struct nl_msg *msg;
3499 enum nl80211_auth_type type;
2f4f73b1 3500 enum nl80211_iftype nlmode;
6d6f4bb8 3501 int count = 0;
c2a04078
JM		 3502
3503 drv->associated = 0;
e6b8efeb 3504 os_memset(drv->auth_bssid, 0, ETH_ALEN);
af473088 3505 /* FIX: IBSS mode */
2f4f73b1
EP		 3506 nlmode = params->p2p ?
3507 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
3508 if (drv->nlmode != nlmode &&
3509 wpa_driver_nl80211_set_mode(priv, nlmode) < 0)
4a867032
JM		 3510 return -1;
3511
6d6f4bb8 3512retry:
c2a04078
JM		 3513 msg = nlmsg_alloc();
3514 if (!msg)
3515 return -1;
3516
3517 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)",
3518 drv->ifindex);
a0b2f99b 3519
9fb04070 3520 nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE);
0194fedb 3521
a0b2f99b
JM		 3522 for (i = 0; i < 4; i++) {
3523 if (!params->wep_key[i])
3524 continue;
2ea2fcc7
HS		 3525 wpa_driver_nl80211_set_key(bss->ifname, priv, WPA_ALG_WEP,
3526 NULL, i,
a0b2f99b
JM		 3527 i == params->wep_tx_keyidx, NULL, 0,
3528 params->wep_key[i],
3529 params->wep_key_len[i]);
0194fedb
JB		 3530 if (params->wep_tx_keyidx != i)
3531 continue;
3532 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0,
3533 params->wep_key[i], params->wep_key_len[i])) {
3534 nlmsg_free(msg);
3535 return -1;
3536 }
a0b2f99b
JM		 3537 }
3538
c2a04078
JM		 3539 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3540 if (params->bssid) {
3541 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
3542 MAC2STR(params->bssid));
3543 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
3544 }
3545 if (params->freq) {
3546 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
3547 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
3548 }
3549 if (params->ssid) {
3550 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
3551 params->ssid, params->ssid_len);
3552 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
3553 params->ssid);
3554 }
3555 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len);
3556 if (params->ie)
3557 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie);
abd9fafa 3558 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
c2a04078 3559 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
abd9fafa 3560 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
c2a04078 3561 type = NL80211_AUTHTYPE_SHARED_KEY;
abd9fafa 3562 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
c2a04078 3563 type = NL80211_AUTHTYPE_NETWORK_EAP;
abd9fafa 3564 else if (params->auth_alg & WPA_AUTH_ALG_FT)
c2a04078
JM		 3565 type = NL80211_AUTHTYPE_FT;
3566 else
3567 goto nla_put_failure;
3568 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
3569 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
77339912
JM		 3570 if (params->local_state_change) {
3571 wpa_printf(MSG_DEBUG, " * Local state change only");
3572 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
3573 }
c2a04078
JM		 3574
3575 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3576 msg = NULL;
3577 if (ret) {
3578 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
3579 "(%s)", ret, strerror(-ret));
6d6f4bb8 3580 count++;
77339912
JM		 3581 if (ret == -EALREADY && count == 1 && params->bssid &&
3582 !params->local_state_change) {
6d6f4bb8
JM		 3583 /*
3584 * mac80211 does not currently accept new
3585 * authentication if we are already authenticated. As a
3586 * workaround, force deauthentication and try again.
3587 */
3588 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication "
3589 "after forced deauthentication");
3590 wpa_driver_nl80211_deauthenticate(
5205c4f9 3591 bss, params->bssid,
6d6f4bb8
JM		 3592 WLAN_REASON_PREV_AUTH_NOT_VALID);
3593 nlmsg_free(msg);
3594 goto retry;
3595 }
c2a04078
JM		 3596 goto nla_put_failure;
3597 }
3598 ret = 0;
3599 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send "
3600 "successfully");
3601
3602nla_put_failure:
3603 nlmsg_free(msg);
3604 return ret;
3605}
3606
3607
282d5590
JM		 3608struct phy_info_arg {
3609 u16 *num_modes;
3610 struct hostapd_hw_modes *modes;
3611};
3612
3613static int phy_info_handler(struct nl_msg *msg, void *arg)
3614{
3615 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
3616 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3617 struct phy_info_arg *phy_info = arg;
3618
3619 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
3620
3621 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
3622 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
3623 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
3624 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
3625 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG },
3626 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG },
3627 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
3628 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
3629 };
3630
3631 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
3632 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
3633 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
3634 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = { .type = NLA_FLAG },
3635 };
3636
3637 struct nlattr *nl_band;
3638 struct nlattr *nl_freq;
3639 struct nlattr *nl_rate;
3640 int rem_band, rem_freq, rem_rate;
3641 struct hostapd_hw_modes *mode;
3642 int idx, mode_is_set;
3643
3644 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3645 genlmsg_attrlen(gnlh, 0), NULL);
3646
3647 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
3648 return NL_SKIP;
3649
3650 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) {
e62fb0a0 3651 mode = os_realloc(phy_info->modes, (*phy_info->num_modes + 1) * sizeof(*mode));
282d5590
JM		 3652 if (!mode)
3653 return NL_SKIP;
3654 phy_info->modes = mode;
3655
3656 mode_is_set = 0;
3657
3658 mode = &phy_info->modes[*(phy_info->num_modes)];
3659 memset(mode, 0, sizeof(*mode));
3660 *(phy_info->num_modes) += 1;
3661
3662 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
3663 nla_len(nl_band), NULL);
3664
3665 if (tb_band[NL80211_BAND_ATTR_HT_CAPA]) {
3666 mode->ht_capab = nla_get_u16(
3667 tb_band[NL80211_BAND_ATTR_HT_CAPA]);
3668 }
3669
be8eb8ab
JM		 3670 if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) {
3671 mode->a_mpdu_params |= nla_get_u8(
3672 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) &
3673 0x03;
3674 }
3675
3676 if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) {
3677 mode->a_mpdu_params |= nla_get_u8(
3678 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) <<
3679 2;
3680 }
3681
08eb154d
JM		 3682 if (tb_band[NL80211_BAND_ATTR_HT_MCS_SET] &&
3683 nla_len(tb_band[NL80211_BAND_ATTR_HT_MCS_SET])) {
3684 u8 *mcs;
3685 mcs = nla_data(tb_band[NL80211_BAND_ATTR_HT_MCS_SET]);
3686 os_memcpy(mode->mcs_set, mcs, 16);
3687 }
3688
282d5590
JM		 3689 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
3690 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
3691 nla_len(nl_freq), freq_policy);
3692 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
3693 continue;
3694 mode->num_channels++;
3695 }
3696
e62fb0a0 3697 mode->channels = os_zalloc(mode->num_channels * sizeof(struct hostapd_channel_data));
282d5590
JM		 3698 if (!mode->channels)
3699 return NL_SKIP;
3700
3701 idx = 0;
3702
3703 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
3704 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
3705 nla_len(nl_freq), freq_policy);
3706 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
3707 continue;
3708
3709 mode->channels[idx].freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
3710 mode->channels[idx].flag = 0;
3711
3712 if (!mode_is_set) {
3713 /* crude heuristic */
3714 if (mode->channels[idx].freq < 4000)
3715 mode->mode = HOSTAPD_MODE_IEEE80211B;
3716 else
3717 mode->mode = HOSTAPD_MODE_IEEE80211A;
3718 mode_is_set = 1;
3719 }
3720
3721 /* crude heuristic */
3722 if (mode->channels[idx].freq < 4000)
5a0ffb5f 3723 if (mode->channels[idx].freq == 2484)
282d5590
JM		 3724 mode->channels[idx].chan = 14;
3725 else
3726 mode->channels[idx].chan = (mode->channels[idx].freq - 2407) / 5;
3727 else
3728 mode->channels[idx].chan = mode->channels[idx].freq/5 - 1000;
3729
3730 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
3731 mode->channels[idx].flag |=
3732 HOSTAPD_CHAN_DISABLED;
3733 if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
3734 mode->channels[idx].flag |=
3735 HOSTAPD_CHAN_PASSIVE_SCAN;
3736 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS])
3737 mode->channels[idx].flag |=
3738 HOSTAPD_CHAN_NO_IBSS;
3739 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
3740 mode->channels[idx].flag |=
3741 HOSTAPD_CHAN_RADAR;
3742
3743 if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] &&
3744 !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
3745 mode->channels[idx].max_tx_power =
3746 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100;
3747
3748 idx++;
3749 }
3750
3751 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
3752 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
3753 nla_len(nl_rate), rate_policy);
3754 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
3755 continue;
3756 mode->num_rates++;
3757 }
3758
e62fb0a0 3759 mode->rates = os_zalloc(mode->num_rates * sizeof(int));
282d5590
JM		 3760 if (!mode->rates)
3761 return NL_SKIP;
3762
3763 idx = 0;
3764
3765 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
3766 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
3767 nla_len(nl_rate), rate_policy);
3768 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
3769 continue;
fb7842aa 3770 mode->rates[idx] = nla_get_u32(tb_rate[NL80211_BITRATE_ATTR_RATE]);
282d5590
JM		 3771
3772 /* crude heuristic */
3773 if (mode->mode == HOSTAPD_MODE_IEEE80211B &&
fb7842aa 3774 mode->rates[idx] > 200)
282d5590
JM		 3775 mode->mode = HOSTAPD_MODE_IEEE80211G;
3776
282d5590
JM		 3777 idx++;
3778 }
3779 }
3780
3781 return NL_SKIP;
3782}
3783
3784static struct hostapd_hw_modes *
3785wpa_driver_nl80211_add_11b(struct hostapd_hw_modes *modes, u16 *num_modes)
3786{
3787 u16 m;
3788 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
3789 int i, mode11g_idx = -1;
3790
3791 /* If only 802.11g mode is included, use it to construct matching
3792 * 802.11b mode data. */
3793
3794 for (m = 0; m < *num_modes; m++) {
3795 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
3796 return modes; /* 802.11b already included */
3797 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
3798 mode11g_idx = m;
3799 }
3800
3801 if (mode11g_idx < 0)
3802 return modes; /* 2.4 GHz band not supported at all */
3803
3804 nmodes = os_realloc(modes, (*num_modes + 1) * sizeof(*nmodes));
3805 if (nmodes == NULL)
3806 return modes; /* Could not add 802.11b mode */
3807
3808 mode = &nmodes[*num_modes];
3809 os_memset(mode, 0, sizeof(*mode));
3810 (*num_modes)++;
3811 modes = nmodes;
3812
3813 mode->mode = HOSTAPD_MODE_IEEE80211B;
3814
3815 mode11g = &modes[mode11g_idx];
3816 mode->num_channels = mode11g->num_channels;
3817 mode->channels = os_malloc(mode11g->num_channels *
3818 sizeof(struct hostapd_channel_data));
3819 if (mode->channels == NULL) {
3820 (*num_modes)--;
3821 return modes; /* Could not add 802.11b mode */
3822 }
3823 os_memcpy(mode->channels, mode11g->channels,
3824 mode11g->num_channels * sizeof(struct hostapd_channel_data));
3825
3826 mode->num_rates = 0;
fb7842aa 3827 mode->rates = os_malloc(4 * sizeof(int));
282d5590
JM		 3828 if (mode->rates == NULL) {
3829 os_free(mode->channels);
3830 (*num_modes)--;
3831 return modes; /* Could not add 802.11b mode */
3832 }
3833
3834 for (i = 0; i < mode11g->num_rates; i++) {
fb7842aa
JM		 3835 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 &&
3836 mode11g->rates[i] != 55 && mode11g->rates[i] != 110)
282d5590
JM		 3837 continue;
3838 mode->rates[mode->num_rates] = mode11g->rates[i];
3839 mode->num_rates++;
3840 if (mode->num_rates == 4)
3841 break;
3842 }
3843
3844 if (mode->num_rates == 0) {
3845 os_free(mode->channels);
3846 os_free(mode->rates);
3847 (*num_modes)--;
3848 return modes; /* No 802.11b rates */
3849 }
3850
3851 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
3852 "information");
3853
3854 return modes;
3855}
3856
3857
d8e66e80
JM		 3858static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start,
3859 int end)
3860{
3861 int c;
3862
3863 for (c = 0; c < mode->num_channels; c++) {
3864 struct hostapd_channel_data *chan = &mode->channels[c];
3865 if (chan->freq - 10 >= start && chan->freq + 10 <= end)
3866 chan->flag |= HOSTAPD_CHAN_HT40;
3867 }
3868}
3869
3870
3871static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start,
3872 int end)
3873{
3874 int c;
3875
3876 for (c = 0; c < mode->num_channels; c++) {
3877 struct hostapd_channel_data *chan = &mode->channels[c];
3878 if (!(chan->flag & HOSTAPD_CHAN_HT40))
3879 continue;
3880 if (chan->freq - 30 >= start && chan->freq - 10 <= end)
3881 chan->flag |= HOSTAPD_CHAN_HT40MINUS;
3882 if (chan->freq + 10 >= start && chan->freq + 30 <= end)
3883 chan->flag |= HOSTAPD_CHAN_HT40PLUS;
3884 }
3885}
3886
3887
3888static void nl80211_reg_rule_ht40(struct nlattr *tb[],
3889 struct phy_info_arg *results)
3890{
3891 u32 start, end, max_bw;
3892 u16 m;
3893
3894 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
3895 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
3896 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
3897 return;
3898
3899 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
3900 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
3901 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
3902
3903 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz",
3904 start, end, max_bw);
3905 if (max_bw < 40)
3906 return;
3907
3908 for (m = 0; m < *results->num_modes; m++) {
3909 if (!(results->modes[m].ht_capab &
3910 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
3911 continue;
3912 nl80211_set_ht40_mode(&results->modes[m], start, end);
3913 }
3914}
3915
3916
3917static void nl80211_reg_rule_sec(struct nlattr *tb[],
3918 struct phy_info_arg *results)
3919{
3920 u32 start, end, max_bw;
3921 u16 m;
3922
3923 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
3924 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
3925 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
3926 return;
3927
3928 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
3929 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
3930 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
3931
3932 if (max_bw < 20)
3933 return;
3934
3935 for (m = 0; m < *results->num_modes; m++) {
3936 if (!(results->modes[m].ht_capab &
3937 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
3938 continue;
3939 nl80211_set_ht40_mode_sec(&results->modes[m], start, end);
3940 }
3941}
3942
3943
3944static int nl80211_get_reg(struct nl_msg *msg, void *arg)
3945{
3946 struct phy_info_arg *results = arg;
3947 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
3948 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3949 struct nlattr *nl_rule;
3950 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1];
3951 int rem_rule;
3952 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
3953 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3954 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3955 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3956 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3957 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3958 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3959 };
3960
3961 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3962 genlmsg_attrlen(gnlh, 0), NULL);
3963 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] ||
3964 !tb_msg[NL80211_ATTR_REG_RULES]) {
3965 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information "
3966 "available");
3967 return NL_SKIP;
3968 }
3969
3970 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s",
3971 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]));
3972
3973 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
3974 {
3975 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
3976 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
3977 nl80211_reg_rule_ht40(tb_rule, results);
3978 }
3979
3980 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
3981 {
3982 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
3983 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
3984 nl80211_reg_rule_sec(tb_rule, results);
3985 }
3986
3987 return NL_SKIP;
3988}
3989
3990
3991static int nl80211_set_ht40_flags(struct wpa_driver_nl80211_data *drv,
3992 struct phy_info_arg *results)
3993{
3994 struct nl_msg *msg;
3995
3996 msg = nlmsg_alloc();
3997 if (!msg)
3998 return -ENOMEM;
3999
9fb04070 4000 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG);
d8e66e80
JM		 4001 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results);
4002}
4003
4004
282d5590
JM		 4005static struct hostapd_hw_modes *
4006wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
4007{
a2e40bb6
FF		 4008 struct i802_bss *bss = priv;
4009 struct wpa_driver_nl80211_data *drv = bss->drv;
282d5590
JM		 4010 struct nl_msg *msg;
4011 struct phy_info_arg result = {
4012 .num_modes = num_modes,
4013 .modes = NULL,
4014 };
4015
4016 *num_modes = 0;
4017 *flags = 0;
4018
4019 msg = nlmsg_alloc();
4020 if (!msg)
4021 return NULL;
4022
9fb04070 4023 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY);
282d5590
JM		 4024
4025 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4026
d8e66e80
JM		 4027 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) {
4028 nl80211_set_ht40_flags(drv, &result);
282d5590 4029 return wpa_driver_nl80211_add_11b(result.modes, num_modes);
d8e66e80 4030 }
282d5590
JM		 4031 nla_put_failure:
4032 return NULL;
4033}
4034
4035
2c2010ac
JM		 4036static int wpa_driver_nl80211_send_frame(struct wpa_driver_nl80211_data *drv,
4037 const void *data, size_t len,
4038 int encrypt)
4039{
4040 __u8 rtap_hdr[] = {
4041 0x00, 0x00, /* radiotap version */
4042 0x0e, 0x00, /* radiotap length */
4043 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */
4044 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */
4045 0x00, /* padding */
4046 0x00, 0x00, /* RX and TX flags to indicate that */
4047 0x00, 0x00, /* this is the injected frame directly */
4048 };
4049 struct iovec iov[2] = {
4050 {
4051 .iov_base = &rtap_hdr,
4052 .iov_len = sizeof(rtap_hdr),
4053 },
4054 {
4055 .iov_base = (void *) data,
4056 .iov_len = len,
4057 }
4058 };
4059 struct msghdr msg = {
4060 .msg_name = NULL,
4061 .msg_namelen = 0,
4062 .msg_iov = iov,
4063 .msg_iovlen = 2,
4064 .msg_control = NULL,
4065 .msg_controllen = 0,
4066 .msg_flags = 0,
4067 };
ebbec8b2 4068 int res;
2c2010ac
JM		 4069
4070 if (encrypt)
4071 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP;
4072
866af8b6
JM		 4073 if (drv->monitor_sock < 0) {
4074 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available "
4075 "for %s", __func__);
4076 return -1;
4077 }
4078
ebbec8b2
JM		 4079 res = sendmsg(drv->monitor_sock, &msg, 0);
4080 if (res < 0) {
4081 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno));
4082 return -1;
4083 }
4084 return 0;
2c2010ac
JM		 4085}
4086
4087
4088static int wpa_driver_nl80211_send_mlme(void *priv, const u8 *data,
4089 size_t data_len)
4090{
a2e40bb6
FF		 4091 struct i802_bss *bss = priv;
4092 struct wpa_driver_nl80211_data *drv = bss->drv;
2c2010ac 4093 struct ieee80211_mgmt *mgmt;
7a47d567 4094 int encrypt = 1;
2c2010ac
JM		 4095 u16 fc;
4096
4097 mgmt = (struct ieee80211_mgmt *) data;
4098 fc = le_to_host16(mgmt->frame_control);
4099
b1f625e0 4100 if (is_sta_interface(drv->nlmode) &&
5582a5d1
JB		 4101 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
4102 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) {
4103 /*
4104 * The use of last_mgmt_freq is a bit of a hack,
4105 * but it works due to the single-threaded nature
4106 * of wpa_supplicant.
4107 */
5dfca53f 4108 return nl80211_send_frame_cmd(drv, drv->last_mgmt_freq, 0,
5582a5d1
JB		 4109 data, data_len, NULL);
4110 }
4111
86957e62
JM		 4112 if (drv->no_monitor_iface_capab && is_ap_interface(drv->nlmode)) {
4113 return nl80211_send_frame_cmd(drv, drv->ap_oper_freq, 0,
4114 data, data_len, NULL);
4115 }
4116
2c2010ac
JM		 4117 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
4118 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) {
4119 /*
4120 * Only one of the authentication frame types is encrypted.
4121 * In order for static WEP encryption to work properly (i.e.,
4122 * to not encrypt the frame), we need to tell mac80211 about
4123 * the frames that must not be encrypted.
4124 */
4125 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
4126 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction);
7a47d567
JB		 4127 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3)
4128 encrypt = 0;
2c2010ac
JM		 4129 }
4130
7a47d567 4131 return wpa_driver_nl80211_send_frame(drv, data, data_len, encrypt);
2c2010ac
JM		 4132}
4133
4134
fd13a541
JM		 4135static int nl80211_set_ap_isolate(struct i802_bss *bss, int enabled)
4136{
4137 struct wpa_driver_nl80211_data *drv = bss->drv;
4138 struct nl_msg *msg;
4139
4140 msg = nlmsg_alloc();
4141 if (!msg)
4142 return -ENOMEM;
4143
9fb04070 4144 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS);
fd13a541
JM		 4145
4146 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
4147 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, enabled);
4148
4149 return send_and_recv_msgs(drv, msg, NULL, NULL);
4150 nla_put_failure:
4151 return -ENOBUFS;
4152}
4153
4154
31357268
JM		 4155static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble,
4156 int slot, int ht_opmode)
4157{
4158 struct wpa_driver_nl80211_data *drv = bss->drv;
4159 struct nl_msg *msg;
4160
4161 msg = nlmsg_alloc();
4162 if (!msg)
4163 return -ENOMEM;
4164
9fb04070 4165 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS);
31357268
JM		 4166
4167 if (cts >= 0)
4168 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts);
4169 if (preamble >= 0)
4170 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble);
4171 if (slot >= 0)
4172 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot);
4173 if (ht_opmode >= 0)
4174 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode);
4175 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
4176
4177 return send_and_recv_msgs(drv, msg, NULL, NULL);
4178 nla_put_failure:
4179 return -ENOBUFS;
4180}
4181
4182
19c3b566
JM		 4183static int wpa_driver_nl80211_set_ap(void *priv,
4184 struct wpa_driver_ap_params *params)
d2440ba0 4185{
a2e40bb6
FF		 4186 struct i802_bss *bss = priv;
4187 struct wpa_driver_nl80211_data *drv = bss->drv;
d2440ba0
JM		 4188 struct nl_msg *msg;
4189 u8 cmd = NL80211_CMD_NEW_BEACON;
4190 int ret;
b4fd6fab 4191 int beacon_set;
8b897f5a 4192 int ifindex = if_nametoindex(bss->ifname);
b11d1d64
JM		 4193 int num_suites;
4194 u32 suites[10];
4195 u32 ver;
b4fd6fab 4196
b4fd6fab 4197 beacon_set = bss->beacon_set;
d2440ba0
JM		 4198
4199 msg = nlmsg_alloc();
4200 if (!msg)
4201 return -ENOMEM;
4202
4203 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)",
b4fd6fab
JM		 4204 beacon_set);
4205 if (beacon_set)
d2440ba0
JM		 4206 cmd = NL80211_CMD_SET_BEACON;
4207
9fb04070 4208 nl80211_cmd(drv, msg, 0, cmd);
19c3b566
JM		 4209 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head);
4210 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail);
b4fd6fab 4211 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
19c3b566
JM		 4212 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int);
4213 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period);
ccb941e6
JM		 4214 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
4215 params->ssid);
97a7a0b5
JM		 4216 switch (params->hide_ssid) {
4217 case NO_SSID_HIDING:
4218 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
4219 NL80211_HIDDEN_SSID_NOT_IN_USE);
4220 break;
4221 case HIDDEN_SSID_ZERO_LEN:
4222 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
4223 NL80211_HIDDEN_SSID_ZERO_LEN);
4224 break;
4225 case HIDDEN_SSID_ZERO_CONTENTS:
4226 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
4227 NL80211_HIDDEN_SSID_ZERO_CONTENTS);
4228 break;
4229 }
b11d1d64
JM		 4230 if (params->privacy)
4231 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
4232 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) ==
4233 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) {
4234 /* Leave out the attribute */
4235 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED)
4236 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE,
4237 NL80211_AUTHTYPE_SHARED_KEY);
4238 else
4239 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE,
4240 NL80211_AUTHTYPE_OPEN_SYSTEM);
4241
4242 ver = 0;
4243 if (params->wpa_version & WPA_PROTO_WPA)
4244 ver |= NL80211_WPA_VERSION_1;
4245 if (params->wpa_version & WPA_PROTO_RSN)
4246 ver |= NL80211_WPA_VERSION_2;
4247 if (ver)
4248 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
4249
4250 num_suites = 0;
4251 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X)
4252 suites[num_suites++] = WLAN_AKM_SUITE_8021X;
4253 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK)
4254 suites[num_suites++] = WLAN_AKM_SUITE_PSK;
4255 if (num_suites) {
4256 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES,
4257 num_suites * sizeof(u32), suites);
4258 }
4259
4260 num_suites = 0;
4261 if (params->pairwise_ciphers & WPA_CIPHER_CCMP)
4262 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP;
4263 if (params->pairwise_ciphers & WPA_CIPHER_TKIP)
4264 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP;
4265 if (params->pairwise_ciphers & WPA_CIPHER_WEP104)
4266 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104;
4267 if (params->pairwise_ciphers & WPA_CIPHER_WEP40)
4268 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40;
4269 if (num_suites) {
4270 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE,
4271 num_suites * sizeof(u32), suites);
4272 }
4273
4274 switch (params->group_cipher) {
4275 case WPA_CIPHER_CCMP:
4276 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
4277 WLAN_CIPHER_SUITE_CCMP);
4278 break;
4279 case WPA_CIPHER_TKIP:
4280 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
4281 WLAN_CIPHER_SUITE_TKIP);
4282 break;
4283 case WPA_CIPHER_WEP104:
4284 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
4285 WLAN_CIPHER_SUITE_WEP104);
4286 break;
4287 case WPA_CIPHER_WEP40:
4288 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
4289 WLAN_CIPHER_SUITE_WEP40);
4290 break;
4291 }
d2440ba0 4292
fb91db56
JM		 4293 if (params->beacon_ies) {
4294 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies),
4295 wpabuf_head(params->beacon_ies));
4296 }
4297 if (params->proberesp_ies) {
4298 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP,
4299 wpabuf_len(params->proberesp_ies),
4300 wpabuf_head(params->proberesp_ies));
4301 }
4302 if (params->assocresp_ies) {
4303 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP,
4304 wpabuf_len(params->assocresp_ies),
4305 wpabuf_head(params->assocresp_ies));
4306 }
4307
d2440ba0
JM		 4308 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4309 if (ret) {
4310 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)",
4311 ret, strerror(-ret));
b4fd6fab 4312 } else {
b4fd6fab 4313 bss->beacon_set = 1;
fd13a541
JM		 4314 ret = nl80211_set_ap_isolate(bss, params->isolate);
4315 if (!params->isolate && ret) {
4316 wpa_printf(MSG_DEBUG, "nl80211: Ignore AP isolation "
4317 "configuration error since isolation is "
4318 "not used");
4319 ret = 0;
4320 }
31357268
JM		 4321
4322 nl80211_set_bss(bss, params->cts_protect, params->preamble,
4323 params->short_slot_time, params->ht_opmode);
b4fd6fab 4324 }
d2440ba0
JM		 4325 return ret;
4326 nla_put_failure:
4327 return -ENOBUFS;
4328}
4329
4330
f019981a
JM		 4331static int wpa_driver_nl80211_set_freq(struct wpa_driver_nl80211_data *drv,
4332 int freq, int ht_enabled,
4333 int sec_channel_offset)
1581b38b
JM		 4334{
4335 struct nl_msg *msg;
d2440ba0 4336 int ret;
1581b38b 4337
44dc872e
JM		 4338 wpa_printf(MSG_DEBUG, "nl80211: Set freq %d (ht_enabled=%d "
4339 "sec_channel_offset=%d)",
4340 freq, ht_enabled, sec_channel_offset);
1581b38b
JM		 4341 msg = nlmsg_alloc();
4342 if (!msg)
4343 return -1;
4344
9fb04070 4345 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
1581b38b
JM		 4346
4347 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
f019981a
JM		 4348 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
4349 if (ht_enabled) {
4350 switch (sec_channel_offset) {
4351 case -1:
4352 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
4353 NL80211_CHAN_HT40MINUS);
4354 break;
4355 case 1:
4356 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
4357 NL80211_CHAN_HT40PLUS);
4358 break;
4359 default:
4360 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
4361 NL80211_CHAN_HT20);
4362 break;
4363 }
4364 }
1581b38b 4365
d2440ba0
JM		 4366 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4367 if (ret == 0)
1581b38b 4368 return 0;
f019981a
JM		 4369 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): "
4370 "%d (%s)", freq, ret, strerror(-ret));
1581b38b
JM		 4371nla_put_failure:
4372 return -1;
4373}
4374
0f4e8b4f 4375
95ab6063
AN		 4376static u32 sta_flags_nl80211(int flags)
4377{
4378 u32 f = 0;
4379
4380 if (flags & WPA_STA_AUTHORIZED)
4381 f |= BIT(NL80211_STA_FLAG_AUTHORIZED);
4382 if (flags & WPA_STA_WMM)
4383 f |= BIT(NL80211_STA_FLAG_WME);
4384 if (flags & WPA_STA_SHORT_PREAMBLE)
4385 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
4386 if (flags & WPA_STA_MFP)
4387 f |= BIT(NL80211_STA_FLAG_MFP);
4388
4389 return f;
4390}
4391
4392
62847751 4393static int wpa_driver_nl80211_sta_add(void *priv,
0f4e8b4f
JM		 4394 struct hostapd_sta_add_params *params)
4395{
a2e40bb6
FF		 4396 struct i802_bss *bss = priv;
4397 struct wpa_driver_nl80211_data *drv = bss->drv;
0f4e8b4f 4398 struct nl_msg *msg;
95ab6063 4399 struct nl80211_sta_flag_update upd;
0f4e8b4f
JM		 4400 int ret = -ENOBUFS;
4401
4402 msg = nlmsg_alloc();
4403 if (!msg)
4404 return -ENOMEM;
4405
9fb04070 4406 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_STATION);
0f4e8b4f 4407
62847751 4408 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
0f4e8b4f
JM		 4409 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr);
4410 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid);
4411 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len,
4412 params->supp_rates);
4413 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL,
4414 params->listen_interval);
0f4e8b4f
JM		 4415 if (params->ht_capabilities) {
4416 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY,
fc4e2d95
JM		 4417 sizeof(*params->ht_capabilities),
4418 params->ht_capabilities);
0f4e8b4f 4419 }
0f4e8b4f 4420
95ab6063
AN		 4421 os_memset(&upd, 0, sizeof(upd));
4422 upd.mask = sta_flags_nl80211(params->flags);
4423 upd.set = upd.mask;
4424 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
4425
0f4e8b4f
JM		 4426 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4427 if (ret)
4428 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_NEW_STATION "
4429 "result: %d (%s)", ret, strerror(-ret));
4430 if (ret == -EEXIST)
4431 ret = 0;
4432 nla_put_failure:
4433 return ret;
4434}
4435
4436
4437static int wpa_driver_nl80211_sta_remove(void *priv, const u8 *addr)
4438{
a2e40bb6
FF		 4439 struct i802_bss *bss = priv;
4440 struct wpa_driver_nl80211_data *drv = bss->drv;
0f4e8b4f
JM		 4441 struct nl_msg *msg;
4442 int ret;
4443
4444 msg = nlmsg_alloc();
4445 if (!msg)
4446 return -ENOMEM;
4447
9fb04070 4448 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION);
0f4e8b4f
JM		 4449
4450 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 4451 if_nametoindex(bss->ifname));
0f4e8b4f
JM		 4452 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
4453
4454 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4455 if (ret == -ENOENT)
4456 return 0;
4457 return ret;
4458 nla_put_failure:
4459 return -ENOBUFS;
4460}
4461
1581b38b 4462
0915d02c
JM		 4463static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
4464 int ifidx)
4465{
4466 struct nl_msg *msg;
4467
c6e8e8e4
JM		 4468 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx);
4469
2135f224
JM		 4470 /* stop listening for EAPOL on this interface */
4471 del_ifidx(drv, ifidx);
2135f224 4472
0915d02c
JM		 4473 msg = nlmsg_alloc();
4474 if (!msg)
4475 goto nla_put_failure;
4476
9fb04070 4477 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE);
0915d02c
JM		 4478 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx);
4479
4480 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
4481 return;
4482 nla_put_failure:
e748062b 4483 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx);
0915d02c
JM		 4484}
4485
4486
a1922f93
JM		 4487static const char * nl80211_iftype_str(enum nl80211_iftype mode)
4488{
4489 switch (mode) {
4490 case NL80211_IFTYPE_ADHOC:
4491 return "ADHOC";
4492 case NL80211_IFTYPE_STATION:
4493 return "STATION";
4494 case NL80211_IFTYPE_AP:
4495 return "AP";
4496 case NL80211_IFTYPE_MONITOR:
4497 return "MONITOR";
4498 case NL80211_IFTYPE_P2P_CLIENT:
4499 return "P2P_CLIENT";
4500 case NL80211_IFTYPE_P2P_GO:
4501 return "P2P_GO";
4502 default:
4503 return "unknown";
4504 }
4505}
4506
4507
a35187e7
KH		 4508static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv,
4509 const char *ifname,
4510 enum nl80211_iftype iftype,
fbbfcbac 4511 const u8 *addr, int wds)
0915d02c
JM		 4512{
4513 struct nl_msg *msg, *flags = NULL;
4514 int ifidx;
4515 int ret = -ENOBUFS;
4516
a1922f93
JM		 4517 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)",
4518 iftype, nl80211_iftype_str(iftype));
4519
0915d02c
JM		 4520 msg = nlmsg_alloc();
4521 if (!msg)
4522 return -1;
4523
9fb04070 4524 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE);
0915d02c
JM		 4525 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4526 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname);
4527 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype);
4528
4529 if (iftype == NL80211_IFTYPE_MONITOR) {
4530 int err;
4531
4532 flags = nlmsg_alloc();
4533 if (!flags)
4534 goto nla_put_failure;
4535
4536 NLA_PUT_FLAG(flags, NL80211_MNTR_FLAG_COOK_FRAMES);
4537
4538 err = nla_put_nested(msg, NL80211_ATTR_MNTR_FLAGS, flags);
4539
4540 nlmsg_free(flags);
4541
4542 if (err)
4543 goto nla_put_failure;
fbbfcbac
FF		 4544 } else if (wds) {
4545 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds);
0915d02c
JM		 4546 }
4547
4548 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4549 if (ret) {
4550 nla_put_failure:
a35187e7
KH		 4551 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)",
4552 ifname, ret, strerror(-ret));
0915d02c
JM		 4553 return ret;
4554 }
4555
4556 ifidx = if_nametoindex(ifname);
c6e8e8e4
JM		 4557 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d",
4558 ifname, ifidx);
0915d02c
JM		 4559
4560 if (ifidx <= 0)
4561 return -1;
4562
2135f224
JM		 4563 /* start listening for EAPOL on this interface */
4564 add_ifidx(drv, ifidx);
4565
7bfc47c3 4566 if (addr && iftype != NL80211_IFTYPE_MONITOR &&
c81eff1a 4567 linux_set_ifhwaddr(drv->global->ioctl_sock, ifname, addr)) {
41d931ee
JM		 4568 nl80211_remove_iface(drv, ifidx);
4569 return -1;
2135f224 4570 }
2135f224 4571
0915d02c
JM		 4572 return ifidx;
4573}
22a7c9d7
JM		 4574
4575
a35187e7
KH		 4576static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
4577 const char *ifname, enum nl80211_iftype iftype,
fbbfcbac 4578 const u8 *addr, int wds)
a35187e7
KH		 4579{
4580 int ret;
4581
fbbfcbac 4582 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds);
a35187e7 4583
ffbf1eaa 4584 /* if error occurred and interface exists already */
a35187e7
KH		 4585 if (ret == -ENFILE && if_nametoindex(ifname)) {
4586 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname);
4587
4588 /* Try to remove the interface that was already there. */
4589 nl80211_remove_iface(drv, if_nametoindex(ifname));
4590
4591 /* Try to create the interface again */
fbbfcbac
FF		 4592 ret = nl80211_create_iface_once(drv, ifname, iftype, addr,
4593 wds);
a35187e7
KH		 4594 }
4595
4e5cb1a3
JM		 4596 if (ret >= 0 && drv->disable_11b_rates)
4597 nl80211_disable_11b_rates(drv, ret, 1);
4598
a35187e7
KH		 4599 return ret;
4600}
0915d02c 4601
2135f224 4602
0915d02c
JM		 4603static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok)
4604{
4605 struct ieee80211_hdr *hdr;
f8b1f695
JM		 4606 u16 fc;
4607 union wpa_event_data event;
0915d02c
JM		 4608
4609 hdr = (struct ieee80211_hdr *) buf;
4610 fc = le_to_host16(hdr->frame_control);
4611
f8b1f695
JM		 4612 os_memset(&event, 0, sizeof(event));
4613 event.tx_status.type = WLAN_FC_GET_TYPE(fc);
4614 event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
4615 event.tx_status.dst = hdr->addr1;
4616 event.tx_status.data = buf;
4617 event.tx_status.data_len = len;
4618 event.tx_status.ack = ok;
4619 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event);
0915d02c
JM		 4620}
4621
4622
4b9841d3 4623static void from_unknown_sta(struct wpa_driver_nl80211_data *drv,
0d9fc3d8 4624 u8 *buf, size_t len)
0915d02c 4625{
9b90955e
JB		 4626 struct ieee80211_hdr *hdr = (void *)buf;
4627 u16 fc;
f8b1f695 4628 union wpa_event_data event;
9b90955e
JB		 4629
4630 if (len < sizeof(*hdr))
4631 return;
4632
4633 fc = le_to_host16(hdr->frame_control);
4634
f8b1f695 4635 os_memset(&event, 0, sizeof(event));
9b90955e
JB		 4636 event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len);
4637 event.rx_from_unknown.addr = hdr->addr2;
4638 event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) ==
4639 (WLAN_FC_FROMDS | WLAN_FC_TODS);
f8b1f695 4640 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event);
4b9841d3 4641}
0915d02c 4642
4b9841d3
JM		 4643
4644static void handle_frame(struct wpa_driver_nl80211_data *drv,
2a8b7416 4645 u8 *buf, size_t len, int datarate, int ssi_signal)
4b9841d3
JM		 4646{
4647 struct ieee80211_hdr *hdr;
f8b1f695
JM		 4648 u16 fc;
4649 union wpa_event_data event;
0915d02c
JM		 4650
4651 hdr = (struct ieee80211_hdr *) buf;
4652 fc = le_to_host16(hdr->frame_control);
0915d02c 4653
4b9841d3 4654 switch (WLAN_FC_GET_TYPE(fc)) {
0915d02c 4655 case WLAN_FC_TYPE_MGMT:
f8b1f695
JM		 4656 os_memset(&event, 0, sizeof(event));
4657 event.rx_mgmt.frame = buf;
4658 event.rx_mgmt.frame_len = len;
2a8b7416
JM		 4659 event.rx_mgmt.datarate = datarate;
4660 event.rx_mgmt.ssi_signal = ssi_signal;
f8b1f695 4661 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
0915d02c
JM		 4662 break;
4663 case WLAN_FC_TYPE_CTRL:
4664 /* can only get here with PS-Poll frames */
4665 wpa_printf(MSG_DEBUG, "CTRL");
0d9fc3d8 4666 from_unknown_sta(drv, buf, len);
0915d02c
JM		 4667 break;
4668 case WLAN_FC_TYPE_DATA:
0d9fc3d8 4669 from_unknown_sta(drv, buf, len);
0915d02c
JM		 4670 break;
4671 }
4672}
4673
4674
4675static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx)
4676{
4677 struct wpa_driver_nl80211_data *drv = eloop_ctx;
4678 int len;
4679 unsigned char buf[3000];
4680 struct ieee80211_radiotap_iterator iter;
4681 int ret;
2a8b7416 4682 int datarate = 0, ssi_signal = 0;
4b9841d3 4683 int injected = 0, failed = 0, rxflags = 0;
0915d02c
JM		 4684
4685 len = recv(sock, buf, sizeof(buf), 0);
4686 if (len < 0) {
4687 perror("recv");
4688 return;
4689 }
4690
4691 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) {
4692 printf("received invalid radiotap frame\n");
4693 return;
4694 }
4695
0915d02c
JM		 4696 while (1) {
4697 ret = ieee80211_radiotap_iterator_next(&iter);
4698 if (ret == -ENOENT)
4699 break;
4700 if (ret) {
4701 printf("received invalid radiotap frame (%d)\n", ret);
4702 return;
4703 }
4704 switch (iter.this_arg_index) {
4705 case IEEE80211_RADIOTAP_FLAGS:
4706 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS)
4707 len -= 4;
4708 break;
4709 case IEEE80211_RADIOTAP_RX_FLAGS:
4710 rxflags = 1;
4711 break;
4712 case IEEE80211_RADIOTAP_TX_FLAGS:
4713 injected = 1;
4714 failed = le_to_host16((*(uint16_t *) iter.this_arg)) &
4715 IEEE80211_RADIOTAP_F_TX_FAIL;
4716 break;
4717 case IEEE80211_RADIOTAP_DATA_RETRIES:
4718 break;
4719 case IEEE80211_RADIOTAP_CHANNEL:
2a8b7416 4720 /* TODO: convert from freq/flags to channel number */
0915d02c
JM		 4721 break;
4722 case IEEE80211_RADIOTAP_RATE:
2a8b7416 4723 datarate = *iter.this_arg * 5;
0915d02c
JM		 4724 break;
4725 case IEEE80211_RADIOTAP_DB_ANTSIGNAL:
2a8b7416 4726 ssi_signal = *iter.this_arg;
0915d02c
JM		 4727 break;
4728 }
4729 }
4730
4731 if (rxflags && injected)
4732 return;
4733
4734 if (!injected)
4b9841d3 4735 handle_frame(drv, buf + iter.max_length,
2a8b7416 4736 len - iter.max_length, datarate, ssi_signal);
0915d02c 4737 else
4b9841d3
JM		 4738 handle_tx_callback(drv->ctx, buf + iter.max_length,
4739 len - iter.max_length, !failed);
0915d02c
JM		 4740}
4741
4742
4743/*
4744 * we post-process the filter code later and rewrite
4745 * this to the offset to the last instruction
4746 */
4747#define PASS 0xFF
4748#define FAIL 0xFE
4749
4750static struct sock_filter msock_filter_insns[] = {
4751 /*
4752 * do a little-endian load of the radiotap length field
4753 */
4754 /* load lower byte into A */
4755 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2),
4756 /* put it into X (== index register) */
4757 BPF_STMT(BPF_MISC| BPF_TAX, 0),
4758 /* load upper byte into A */
4759 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3),
4760 /* left-shift it by 8 */
4761 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8),
4762 /* or with X */
4763 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0),
4764 /* put result into X */
4765 BPF_STMT(BPF_MISC| BPF_TAX, 0),
4766
4767 /*
4768 * Allow management frames through, this also gives us those
4769 * management frames that we sent ourselves with status
4770 */
4771 /* load the lower byte of the IEEE 802.11 frame control field */
4772 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
4773 /* mask off frame type and version */
4774 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF),
4775 /* accept frame if it's both 0, fall through otherwise */
4776 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0),
4777
4778 /*
4779 * TODO: add a bit to radiotap RX flags that indicates
4780 * that the sending station is not associated, then
4781 * add a filter here that filters on our DA and that flag
4782 * to allow us to deauth frames to that bad station.
4783 *
65ae1afd 4784 * For now allow all To DS data frames through.
0915d02c 4785 */
65ae1afd
HS		 4786 /* load the IEEE 802.11 frame control field */
4787 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0),
4788 /* mask off frame type, version and DS status */
4789 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03),
4790 /* accept frame if version 0, type 2 and To DS, fall through otherwise
4791 */
4792 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0),
0915d02c
JM		 4793
4794#if 0
4795 /*
fbbfcbac 4796 * drop non-data frames
0915d02c
JM		 4797 */
4798 /* load the lower byte of the frame control field */
4799 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
4800 /* mask off QoS bit */
4801 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c),
4802 /* drop non-data frames */
4803 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL),
fbbfcbac 4804#endif
0915d02c 4805 /* load the upper byte of the frame control field */
fbbfcbac 4806 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1),
0915d02c
JM		 4807 /* mask off toDS/fromDS */
4808 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03),
fbbfcbac
FF		 4809 /* accept WDS frames */
4810 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0),
0915d02c
JM		 4811
4812 /*
4813 * add header length to index
4814 */
4815 /* load the lower byte of the frame control field */
4816 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
4817 /* mask off QoS bit */
4818 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80),
4819 /* right shift it by 6 to give 0 or 2 */
4820 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6),
4821 /* add data frame header length */
4822 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24),
4823 /* add index, was start of 802.11 header */
4824 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0),
4825 /* move to index, now start of LL header */
4826 BPF_STMT(BPF_MISC | BPF_TAX, 0),
4827
4828 /*
4829 * Accept empty data frames, we use those for
4830 * polling activity.
4831 */
4832 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0),
4833 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0),
4834
4835 /*
4836 * Accept EAPOL frames
4837 */
4838 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0),
4839 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL),
4840 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4),
4841 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL),
4842
4843 /* keep these last two statements or change the code below */
4844 /* return 0 == "DROP" */
4845 BPF_STMT(BPF_RET | BPF_K, 0),
4846 /* return ~0 == "keep all" */
4847 BPF_STMT(BPF_RET | BPF_K, ~0),
4848};
4849
4850static struct sock_fprog msock_filter = {
4851 .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]),
4852 .filter = msock_filter_insns,
4853};
4854
4855
4856static int add_monitor_filter(int s)
4857{
4858 int idx;
4859
4860 /* rewrite all PASS/FAIL jump offsets */
4861 for (idx = 0; idx < msock_filter.len; idx++) {
4862 struct sock_filter *insn = &msock_filter_insns[idx];
4863
4864 if (BPF_CLASS(insn->code) == BPF_JMP) {
4865 if (insn->code == (BPF_JMP|BPF_JA)) {
4866 if (insn->k == PASS)
4867 insn->k = msock_filter.len - idx - 2;
4868 else if (insn->k == FAIL)
4869 insn->k = msock_filter.len - idx - 3;
4870 }
4871
4872 if (insn->jt == PASS)
4873 insn->jt = msock_filter.len - idx - 2;
4874 else if (insn->jt == FAIL)
4875 insn->jt = msock_filter.len - idx - 3;
4876
4877 if (insn->jf == PASS)
4878 insn->jf = msock_filter.len - idx - 2;
4879 else if (insn->jf == FAIL)
4880 insn->jf = msock_filter.len - idx - 3;
4881 }
4882 }
4883
4884 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER,
4885 &msock_filter, sizeof(msock_filter))) {
4886 perror("SO_ATTACH_FILTER");
4887 return -1;
4888 }
4889
4890 return 0;
4891}
4892
4893
460456f8
JM		 4894static void nl80211_remove_monitor_interface(
4895 struct wpa_driver_nl80211_data *drv)
4896{
4897 if (drv->monitor_ifidx >= 0) {
4898 nl80211_remove_iface(drv, drv->monitor_ifidx);
4899 drv->monitor_ifidx = -1;
4900 }
504e905c
JM		 4901 if (drv->monitor_sock >= 0) {
4902 eloop_unregister_read_sock(drv->monitor_sock);
4903 close(drv->monitor_sock);
4904 drv->monitor_sock = -1;
4905 }
460456f8
JM		 4906}
4907
4908
0915d02c
JM		 4909static int
4910nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv)
4911{
4912 char buf[IFNAMSIZ];
4913 struct sockaddr_ll ll;
4914 int optval;
4915 socklen_t optlen;
0915d02c 4916
6758b167
JJ		 4917 if (os_strncmp(drv->first_bss.ifname, "p2p-", 4) == 0) {
4918 /*
4919 * P2P interface name is of the format p2p-%s-%d. For monitor
4920 * interface name corresponding to P2P GO, replace "p2p-" with
4921 * "mon-" to retain the same interface name length and to
4922 * indicate that it is a monitor interface.
4923 */
4924 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss.ifname + 4);
4925 } else {
4926 /* Non-P2P interface with AP functionality. */
4927 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss.ifname);
4928 }
4929
0915d02c
JM		 4930 buf[IFNAMSIZ - 1] = '\0';
4931
4932 drv->monitor_ifidx =
fbbfcbac
FF		 4933 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL,
4934 0);
0915d02c 4935
866af8b6
JM		 4936 if (drv->monitor_ifidx == -EOPNOTSUPP) {
4937 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support "
4938 "monitor interface type - try to run without it");
4939 drv->no_monitor_iface_capab = 1;
4940 }
4941
0915d02c
JM		 4942 if (drv->monitor_ifidx < 0)
4943 return -1;
4944
c81eff1a 4945 if (linux_set_iface_flags(drv->global->ioctl_sock, buf, 1))
0915d02c 4946 goto error;
0915d02c
JM		 4947
4948 memset(&ll, 0, sizeof(ll));
4949 ll.sll_family = AF_PACKET;
4950 ll.sll_ifindex = drv->monitor_ifidx;
4951 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
4952 if (drv->monitor_sock < 0) {
4953 perror("socket[PF_PACKET,SOCK_RAW]");
4954 goto error;
4955 }
4956
4957 if (add_monitor_filter(drv->monitor_sock)) {
4958 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor "
4959 "interface; do filtering in user space");
4960 /* This works, but will cost in performance. */
4961 }
4962
2135f224 4963 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) {
0915d02c
JM		 4964 perror("monitor socket bind");
4965 goto error;
4966 }
4967
4968 optlen = sizeof(optval);
4969 optval = 20;
4970 if (setsockopt
4971 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) {
4972 perror("Failed to set socket priority");
4973 goto error;
4974 }
4975
4976 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read,
4977 drv, NULL)) {
4978 printf("Could not register monitor read socket\n");
4979 goto error;
4980 }
4981
4982 return 0;
4983 error:
460456f8 4984 nl80211_remove_monitor_interface(drv);
0915d02c
JM		 4985 return -1;
4986}
4987
db149ac9 4988
5fb1a232 4989#ifdef CONFIG_AP
f10bfc9a
JM		 4990static int nl80211_send_eapol_data(struct i802_bss *bss,
4991 const u8 *addr, const u8 *data,
4992 size_t data_len, const u8 *own_addr)
4993{
4994 if (bss->drv->l2 == NULL) {
4995 wpa_printf(MSG_DEBUG, "nl80211: No l2_packet to send EAPOL");
4996 return -1;
4997 }
4998
4999 if (l2_packet_send(bss->drv->l2, addr, ETH_P_EAPOL, data, data_len) <
5000 0)
5001 return -1;
5002 return 0;
5003}
5fb1a232
JM		 5004#endif /* CONFIG_AP */
5005
f10bfc9a 5006
db149ac9
JM		 5007static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
5008
5009static int wpa_driver_nl80211_hapd_send_eapol(
5010 void *priv, const u8 *addr, const u8 *data,
4378fc14 5011 size_t data_len, int encrypt, const u8 *own_addr, u32 flags)
db149ac9 5012{
a2e40bb6
FF		 5013 struct i802_bss *bss = priv;
5014 struct wpa_driver_nl80211_data *drv = bss->drv;
db149ac9
JM		 5015 struct ieee80211_hdr *hdr;
5016 size_t len;
5017 u8 *pos;
5018 int res;
4378fc14 5019 int qos = flags & WPA_STA_WMM;
db149ac9 5020
5fb1a232 5021#ifdef CONFIG_AP
f10bfc9a
JM		 5022 if (drv->no_monitor_iface_capab)
5023 return nl80211_send_eapol_data(bss, addr, data, data_len,
5024 own_addr);
5fb1a232 5025#endif /* CONFIG_AP */
f10bfc9a 5026
db149ac9
JM		 5027 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 +
5028 data_len;
5029 hdr = os_zalloc(len);
5030 if (hdr == NULL) {
5031 printf("malloc() failed for i802_send_data(len=%lu)\n",
5032 (unsigned long) len);
5033 return -1;
5034 }
5035
5036 hdr->frame_control =
5037 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA);
5038 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS);
5039 if (encrypt)
5040 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP);
db149ac9
JM		 5041 if (qos) {
5042 hdr->frame_control |=
5043 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4);
5044 }
db149ac9
JM		 5045
5046 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN);
5047 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
5048 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
5049 pos = (u8 *) (hdr + 1);
5050
db149ac9
JM		 5051 if (qos) {
5052 /* add an empty QoS header if needed */
5053 pos[0] = 0;
5054 pos[1] = 0;
5055 pos += 2;
5056 }
db149ac9
JM		 5057
5058 memcpy(pos, rfc1042_header, sizeof(rfc1042_header));
5059 pos += sizeof(rfc1042_header);
5060 WPA_PUT_BE16(pos, ETH_P_PAE);
5061 pos += 2;
5062 memcpy(pos, data, data_len);
5063
5064 res = wpa_driver_nl80211_send_frame(drv, (u8 *) hdr, len, encrypt);
5065 if (res < 0) {
5066 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - "
5067 "failed: %d (%s)",
5068 (unsigned long) len, errno, strerror(errno));
5069 }
7bf12757 5070 os_free(hdr);
db149ac9
JM		 5071
5072 return res;
5073}
5074
a8d6ffa4 5075
3234cba4
JM		 5076static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr,
5077 int total_flags,
4c32757d 5078 int flags_or, int flags_and)
a8d6ffa4 5079{
a2e40bb6
FF		 5080 struct i802_bss *bss = priv;
5081 struct wpa_driver_nl80211_data *drv = bss->drv;
a8d6ffa4 5082 struct nl_msg *msg, *flags = NULL;
7e76ee9c 5083 struct nl80211_sta_flag_update upd;
a8d6ffa4
JM		 5084
5085 msg = nlmsg_alloc();
5086 if (!msg)
5087 return -ENOMEM;
5088
5089 flags = nlmsg_alloc();
5090 if (!flags) {
5091 nlmsg_free(msg);
5092 return -ENOMEM;
5093 }
5094
9fb04070 5095 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
a8d6ffa4
JM		 5096
5097 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
3234cba4 5098 if_nametoindex(bss->ifname));
a8d6ffa4
JM		 5099 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5100
7e76ee9c
JM		 5101 /*
5102 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This
5103 * can be removed eventually.
5104 */
0de39516 5105 if (total_flags & WPA_STA_AUTHORIZED)
a8d6ffa4
JM		 5106 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_AUTHORIZED);
5107
0de39516 5108 if (total_flags & WPA_STA_WMM)
a8d6ffa4
JM		 5109 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_WME);
5110
0de39516 5111 if (total_flags & WPA_STA_SHORT_PREAMBLE)
a8d6ffa4
JM		 5112 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_SHORT_PREAMBLE);
5113
0de39516 5114 if (total_flags & WPA_STA_MFP)
a8d6ffa4
JM		 5115 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_MFP);
5116
5117 if (nla_put_nested(msg, NL80211_ATTR_STA_FLAGS, flags))
5118 goto nla_put_failure;
5119
7e76ee9c
JM		 5120 os_memset(&upd, 0, sizeof(upd));
5121 upd.mask = sta_flags_nl80211(flags_or | ~flags_and);
5122 upd.set = sta_flags_nl80211(flags_or);
5123 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
5124
a8d6ffa4
JM		 5125 nlmsg_free(flags);
5126
5127 return send_and_recv_msgs(drv, msg, NULL, NULL);
5128 nla_put_failure:
5129 nlmsg_free(flags);
5130 return -ENOBUFS;
5131}
5132
0915d02c 5133
1581b38b
JM		 5134static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv,
5135 struct wpa_driver_associate_params *params)
5136{
b1f625e0
EP		 5137 enum nl80211_iftype nlmode;
5138
5139 if (params->p2p) {
046b26a2
JM		 5140 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P "
5141 "group (GO)");
b1f625e0
EP		 5142 nlmode = NL80211_IFTYPE_P2P_GO;
5143 } else
5144 nlmode = NL80211_IFTYPE_AP;
5145
5146 if (wpa_driver_nl80211_set_mode(&drv->first_bss, nlmode) ||
f019981a 5147 wpa_driver_nl80211_set_freq(drv, params->freq, 0, 0)) {
460456f8 5148 nl80211_remove_monitor_interface(drv);
1581b38b 5149 return -1;
0915d02c 5150 }
1581b38b 5151
86957e62
JM		 5152 if (drv->no_monitor_iface_capab) {
5153 if (wpa_driver_nl80211_probe_req_report(&drv->first_bss, 1) < 0)
5154 {
5155 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable "
5156 "Probe Request frame reporting in AP mode");
5157 /* Try to survive without this */
5158 }
5159 }
5160
5161 drv->ap_oper_freq = params->freq;
1581b38b
JM		 5162
5163 return 0;
5164}
1581b38b
JM		 5165
5166
5cc4d64b
JM		 5167static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv)
5168{
5169 struct nl_msg *msg;
5170 int ret = -1;
5171
5172 msg = nlmsg_alloc();
5173 if (!msg)
5174 return -1;
5175
9fb04070 5176 nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS);
5cc4d64b
JM		 5177 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5178 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5179 msg = NULL;
5180 if (ret) {
5181 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d "
5182 "(%s)", ret, strerror(-ret));
5183 goto nla_put_failure;
5184 }
5185
5186 ret = 0;
5187 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully");
5188
5189nla_put_failure:
5190 nlmsg_free(msg);
5191 return ret;
5192}
5193
5194
5195static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv,
5196 struct wpa_driver_associate_params *params)
5197{
5198 struct nl_msg *msg;
5199 int ret = -1;
5200 int count = 0;
5201
5202 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex);
5203
b1f625e0
EP		 5204 if (wpa_driver_nl80211_set_mode(&drv->first_bss,
5205 NL80211_IFTYPE_ADHOC)) {
5cc4d64b
JM		 5206 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into "
5207 "IBSS mode");
5208 return -1;
5209 }
5210
5211retry:
5212 msg = nlmsg_alloc();
5213 if (!msg)
5214 return -1;
5215
9fb04070 5216 nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS);
5cc4d64b
JM		 5217 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5218
5219 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid))
5220 goto nla_put_failure;
5221
5222 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
5223 params->ssid, params->ssid_len);
5224 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
5225 params->ssid);
5226 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
5227 drv->ssid_len = params->ssid_len;
5228
5229 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
5230 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
5231
5232 ret = nl80211_set_conn_keys(params, msg);
5233 if (ret)
5234 goto nla_put_failure;
5235
a95795ad
JM		 5236 if (params->wpa_ie) {
5237 wpa_hexdump(MSG_DEBUG,
5238 " * Extra IEs for Beacon/Probe Response frames",
5239 params->wpa_ie, params->wpa_ie_len);
5240 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
5241 params->wpa_ie);
5242 }
5243
5cc4d64b
JM		 5244 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5245 msg = NULL;
5246 if (ret) {
5247 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)",
5248 ret, strerror(-ret));
5249 count++;
5250 if (ret == -EALREADY && count == 1) {
5251 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after "
5252 "forced leave");
5253 nl80211_leave_ibss(drv);
5254 nlmsg_free(msg);
5255 goto retry;
5256 }
5257
5258 goto nla_put_failure;
5259 }
5260 ret = 0;
5261 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully");
5262
5263nla_put_failure:
5264 nlmsg_free(msg);
5265 return ret;
5266}
5267
5268
20f5a4c2
JM		 5269static unsigned int nl80211_get_assoc_bssid(struct wpa_driver_nl80211_data *drv,
5270 u8 *bssid)
5271{
5272 struct nl_msg *msg;
5273 int ret;
5274 struct nl80211_bss_info_arg arg;
5275
5276 os_memset(&arg, 0, sizeof(arg));
5277 msg = nlmsg_alloc();
5278 if (!msg)
5279 goto nla_put_failure;
5280
9fb04070 5281 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
20f5a4c2
JM		 5282 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5283
5284 arg.drv = drv;
5285 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
5286 msg = NULL;
5287 if (ret == 0) {
5288 if (is_zero_ether_addr(arg.assoc_bssid))
5289 return -ENOTCONN;
5290 os_memcpy(bssid, arg.assoc_bssid, ETH_ALEN);
5291 return 0;
5292 }
5293 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
5294 "(%s)", ret, strerror(-ret));
5295nla_put_failure:
5296 nlmsg_free(msg);
5297 return drv->assoc_freq;
5298}
5299
5300
5301static int nl80211_disconnect(struct wpa_driver_nl80211_data *drv,
5302 const u8 *bssid)
5303{
5304 u8 addr[ETH_ALEN];
5305
5306 if (bssid == NULL) {
5307 int res = nl80211_get_assoc_bssid(drv, addr);
5308 if (res)
5309 return res;
5310 bssid = addr;
5311 }
5312
5313 return wpa_driver_nl80211_disconnect(drv, bssid,
5314 WLAN_REASON_PREV_AUTH_NOT_VALID);
5315}
5316
5317
cfaab580
ZY		 5318static int wpa_driver_nl80211_connect(
5319 struct wpa_driver_nl80211_data *drv,
5320 struct wpa_driver_associate_params *params)
5321{
5322 struct nl_msg *msg;
5323 enum nl80211_auth_type type;
5324 int ret = 0;
3f360238 5325 int algs;
cfaab580
ZY		 5326
5327 msg = nlmsg_alloc();
5328 if (!msg)
5329 return -1;
5330
5331 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex);
9fb04070 5332 nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT);
cfaab580
ZY		 5333
5334 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5335 if (params->bssid) {
5336 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
5337 MAC2STR(params->bssid));
5338 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
5339 }
5340 if (params->freq) {
5341 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
5342 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
5343 }
5344 if (params->ssid) {
5345 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
5346 params->ssid, params->ssid_len);
5347 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
5348 params->ssid);
5349 if (params->ssid_len > sizeof(drv->ssid))
5350 goto nla_put_failure;
5351 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
5352 drv->ssid_len = params->ssid_len;
5353 }
5354 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
5355 if (params->wpa_ie)
5356 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
5357 params->wpa_ie);
5358
3f360238
JM		 5359 algs = 0;
5360 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
5361 algs++;
5362 if (params->auth_alg & WPA_AUTH_ALG_SHARED)
5363 algs++;
5364 if (params->auth_alg & WPA_AUTH_ALG_LEAP)
5365 algs++;
5366 if (algs > 1) {
5367 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic "
5368 "selection");
5369 goto skip_auth_type;
5370 }
5371
abd9fafa 5372 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
cfaab580 5373 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
abd9fafa 5374 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
cfaab580 5375 type = NL80211_AUTHTYPE_SHARED_KEY;
abd9fafa 5376 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
cfaab580 5377 type = NL80211_AUTHTYPE_NETWORK_EAP;
abd9fafa 5378 else if (params->auth_alg & WPA_AUTH_ALG_FT)
cfaab580
ZY		 5379 type = NL80211_AUTHTYPE_FT;
5380 else
5381 goto nla_put_failure;
5382
5383 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
5384 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
5385
3f360238 5386skip_auth_type:
64fa840a
JM		 5387 if (params->wpa_proto) {
5388 enum nl80211_wpa_versions ver = 0;
cfaab580 5389
64fa840a
JM		 5390 if (params->wpa_proto & WPA_PROTO_WPA)
5391 ver |= NL80211_WPA_VERSION_1;
5392 if (params->wpa_proto & WPA_PROTO_RSN)
5393 ver |= NL80211_WPA_VERSION_2;
cfaab580 5394
64fa840a 5395 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver);
cfaab580
ZY		 5396 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
5397 }
5398
5399 if (params->pairwise_suite != CIPHER_NONE) {
c1bb3e0a 5400 int cipher;
cfaab580
ZY		 5401
5402 switch (params->pairwise_suite) {
5403 case CIPHER_WEP40:
5404 cipher = WLAN_CIPHER_SUITE_WEP40;
5405 break;
5406 case CIPHER_WEP104:
5407 cipher = WLAN_CIPHER_SUITE_WEP104;
5408 break;
5409 case CIPHER_CCMP:
5410 cipher = WLAN_CIPHER_SUITE_CCMP;
5411 break;
5412 case CIPHER_TKIP:
5413 default:
5414 cipher = WLAN_CIPHER_SUITE_TKIP;
5415 break;
5416 }
5417 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
5418 }
5419
5420 if (params->group_suite != CIPHER_NONE) {
c1bb3e0a 5421 int cipher;
cfaab580
ZY		 5422
5423 switch (params->group_suite) {
5424 case CIPHER_WEP40:
5425 cipher = WLAN_CIPHER_SUITE_WEP40;
5426 break;
5427 case CIPHER_WEP104:
5428 cipher = WLAN_CIPHER_SUITE_WEP104;
5429 break;
5430 case CIPHER_CCMP:
5431 cipher = WLAN_CIPHER_SUITE_CCMP;
5432 break;
5433 case CIPHER_TKIP:
5434 default:
5435 cipher = WLAN_CIPHER_SUITE_TKIP;
5436 break;
5437 }
5438 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
5439 }
5440
5441 if (params->key_mgmt_suite == KEY_MGMT_802_1X ||
5442 params->key_mgmt_suite == KEY_MGMT_PSK) {
5443 int mgmt = WLAN_AKM_SUITE_PSK;
5444
5445 switch (params->key_mgmt_suite) {
5446 case KEY_MGMT_802_1X:
5447 mgmt = WLAN_AKM_SUITE_8021X;
5448 break;
5449 case KEY_MGMT_PSK:
5450 default:
5451 mgmt = WLAN_AKM_SUITE_PSK;
5452 break;
5453 }
5454 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt);
5455 }
5456
5457 ret = nl80211_set_conn_keys(params, msg);
5458 if (ret)
5459 goto nla_put_failure;
5460
5461 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5462 msg = NULL;
5463 if (ret) {
5464 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d "
5465 "(%s)", ret, strerror(-ret));
20f5a4c2
JM		 5466 /*
5467 * cfg80211 does not currently accept new connection if we are
5468 * already connected. As a workaround, force disconnection and
5469 * try again once the driver indicates it completed
5470 * disconnection.
5471 */
5472 if (ret == -EALREADY)
5473 nl80211_disconnect(drv, params->bssid);
cfaab580
ZY		 5474 goto nla_put_failure;
5475 }
5476 ret = 0;
5477 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully");
5478
5479nla_put_failure:
5480 nlmsg_free(msg);
5481 return ret;
5482
5483}
5484
5485
c2a04078
JM		 5486static int wpa_driver_nl80211_associate(
5487 void *priv, struct wpa_driver_associate_params *params)
5488{
a2e40bb6
FF		 5489 struct i802_bss *bss = priv;
5490 struct wpa_driver_nl80211_data *drv = bss->drv;
c2a04078
JM		 5491 int ret = -1;
5492 struct nl_msg *msg;
5493
5cc4d64b 5494 if (params->mode == IEEE80211_MODE_AP)
1581b38b 5495 return wpa_driver_nl80211_ap(drv, params);
1581b38b 5496
5cc4d64b
JM		 5497 if (params->mode == IEEE80211_MODE_IBSS)
5498 return wpa_driver_nl80211_ibss(drv, params);
5499
4a867032 5500 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) {
b1f625e0
EP		 5501 enum nl80211_iftype nlmode = params->p2p ?
5502 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
5503
5504 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0)
4a867032 5505 return -1;
cfaab580 5506 return wpa_driver_nl80211_connect(drv, params);
4a867032 5507 }
cfaab580 5508
c2a04078
JM		 5509 drv->associated = 0;
5510
5511 msg = nlmsg_alloc();
5512 if (!msg)
5513 return -1;
5514
5515 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)",
5516 drv->ifindex);
9fb04070 5517 nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE);
c2a04078
JM		 5518
5519 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5520 if (params->bssid) {
5521 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
5522 MAC2STR(params->bssid));
5523 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
5524 }
5525 if (params->freq) {
5526 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
5527 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
4832ecd7
JM		 5528 drv->assoc_freq = params->freq;
5529 } else
5530 drv->assoc_freq = 0;
c2a04078
JM		 5531 if (params->ssid) {
5532 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
5533 params->ssid, params->ssid_len);
5534 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
5535 params->ssid);
fd05d64e
JM		 5536 if (params->ssid_len > sizeof(drv->ssid))
5537 goto nla_put_failure;
5538 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
5539 drv->ssid_len = params->ssid_len;
c2a04078
JM		 5540 }
5541 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
5542 if (params->wpa_ie)
5543 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
5544 params->wpa_ie);
5545
aca01605
JM		 5546 if (params->pairwise_suite != CIPHER_NONE) {
5547 int cipher;
5548
5549 switch (params->pairwise_suite) {
5550 case CIPHER_WEP40:
5551 cipher = WLAN_CIPHER_SUITE_WEP40;
5552 break;
5553 case CIPHER_WEP104:
5554 cipher = WLAN_CIPHER_SUITE_WEP104;
5555 break;
5556 case CIPHER_CCMP:
5557 cipher = WLAN_CIPHER_SUITE_CCMP;
5558 break;
5559 case CIPHER_TKIP:
5560 default:
5561 cipher = WLAN_CIPHER_SUITE_TKIP;
5562 break;
5563 }
79c3124c 5564 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher);
aca01605
JM		 5565 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
5566 }
5567
5568 if (params->group_suite != CIPHER_NONE) {
5569 int cipher;
5570
5571 switch (params->group_suite) {
5572 case CIPHER_WEP40:
5573 cipher = WLAN_CIPHER_SUITE_WEP40;
5574 break;
5575 case CIPHER_WEP104:
5576 cipher = WLAN_CIPHER_SUITE_WEP104;
5577 break;
5578 case CIPHER_CCMP:
5579 cipher = WLAN_CIPHER_SUITE_CCMP;
5580 break;
5581 case CIPHER_TKIP:
5582 default:
5583 cipher = WLAN_CIPHER_SUITE_TKIP;
5584 break;
5585 }
79c3124c 5586 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher);
aca01605
JM		 5587 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
5588 }
5589
e572fa33
JM		 5590#ifdef CONFIG_IEEE80211W
5591 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED)
5592 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED);
5593#endif /* CONFIG_IEEE80211W */
5594
01652550
JM		 5595 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
5596
62fa124c
JM		 5597 if (params->prev_bssid) {
5598 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR,
5599 MAC2STR(params->prev_bssid));
5600 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN,
5601 params->prev_bssid);
5602 }
5603
046b26a2
JM		 5604 if (params->p2p)
5605 wpa_printf(MSG_DEBUG, " * P2P group");
5606
c2a04078
JM		 5607 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5608 msg = NULL;
5609 if (ret) {
5610 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
5611 "(%s)", ret, strerror(-ret));
8856462d 5612 nl80211_dump_scan(drv);
c2a04078
JM		 5613 goto nla_put_failure;
5614 }
5615 ret = 0;
5616 wpa_printf(MSG_DEBUG, "nl80211: Association request send "
5617 "successfully");
5618
5619nla_put_failure:
5620 nlmsg_free(msg);
5621 return ret;
5622}
3f5285e8
JM		 5623
5624
ad1e68e6 5625static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv,
a1922f93 5626 int ifindex, enum nl80211_iftype mode)
3f5285e8 5627{
3f5285e8 5628 struct nl_msg *msg;
ad1e68e6
JM		 5629 int ret = -ENOBUFS;
5630
a1922f93
JM		 5631 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)",
5632 ifindex, mode, nl80211_iftype_str(mode));
5633
ad1e68e6
JM		 5634 msg = nlmsg_alloc();
5635 if (!msg)
5636 return -ENOMEM;
5637
9fb04070 5638 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE);
ad1e68e6
JM		 5639 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
5640 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode);
5641
5642 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5643 if (!ret)
5644 return 0;
5645nla_put_failure:
5646 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:"
5647 " %d (%s)", ifindex, mode, ret, strerror(-ret));
5648 return ret;
5649}
5650
5651
b1f625e0
EP		 5652static int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
5653 enum nl80211_iftype nlmode)
ad1e68e6 5654{
a2e40bb6 5655 struct wpa_driver_nl80211_data *drv = bss->drv;
ad1e68e6 5656 int ret = -1;
26af9dca 5657 int i;
86957e62 5658 int was_ap = is_ap_interface(drv->nlmode);
1581b38b 5659
ad1e68e6
JM		 5660 if (nl80211_set_mode(drv, drv->ifindex, nlmode) == 0) {
5661 drv->nlmode = nlmode;
460456f8
JM		 5662 ret = 0;
5663 goto done;
ad1e68e6 5664 }
3f5285e8 5665
460456f8 5666 if (nlmode == drv->nlmode) {
c6e8e8e4
JM		 5667 wpa_printf(MSG_DEBUG, "nl80211: Interface already in "
5668 "requested mode - ignore error");
460456f8
JM		 5669 ret = 0;
5670 goto done; /* Already in the requested mode */
5671 }
3f5285e8 5672
3f5285e8
JM		 5673 /* mac80211 doesn't allow mode changes while the device is up, so
5674 * take the device down, try to set the mode again, and bring the
5675 * device back up.
5676 */
26af9dca
JM		 5677 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting "
5678 "interface down");
5679 for (i = 0; i < 10; i++) {
6e8183d7 5680 int res;
c81eff1a
BG		 5681 res = linux_set_iface_flags(drv->global->ioctl_sock,
5682 bss->ifname, 0);
6e8183d7
JM		 5683 if (res == -EACCES || res == -ENODEV)
5684 break;
5685 if (res == 0) {
26af9dca
JM		 5686 /* Try to set the mode again while the interface is
5687 * down */
5688 ret = nl80211_set_mode(drv, drv->ifindex, nlmode);
6e8183d7
JM		 5689 if (ret == -EACCES)
5690 break;
c81eff1a 5691 res = linux_set_iface_flags(drv->global->ioctl_sock,
6e8183d7
JM		 5692 bss->ifname, 1);
5693 if (res && !ret)
26af9dca 5694 ret = -1;
6e8183d7 5695 else if (ret != -EBUSY)
26af9dca
JM		 5696 break;
5697 } else
5698 wpa_printf(MSG_DEBUG, "nl80211: Failed to set "
5699 "interface down");
5700 os_sleep(0, 100000);
3f5285e8
JM		 5701 }
5702
c6e8e8e4
JM		 5703 if (!ret) {
5704 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while "
5705 "interface is down");
ad1e68e6 5706 drv->nlmode = nlmode;
7d9c3698 5707 drv->ignore_if_down_event = 1;
c6e8e8e4 5708 }
ad1e68e6 5709
460456f8 5710done:
b1f625e0 5711 if (!ret && is_ap_interface(nlmode)) {
460456f8 5712 /* Setup additional AP mode functionality if needed */
866af8b6
JM		 5713 if (!drv->no_monitor_iface_capab && drv->monitor_ifidx < 0 &&
5714 nl80211_create_monitor_interface(drv) &&
5715 !drv->no_monitor_iface_capab)
460456f8 5716 return -1;
b1f625e0 5717 } else if (!ret && !is_ap_interface(nlmode)) {
460456f8 5718 /* Remove additional AP mode functionality */
86957e62
JM		 5719 if (was_ap && drv->no_monitor_iface_capab)
5720 wpa_driver_nl80211_probe_req_report(bss, 0);
460456f8 5721 nl80211_remove_monitor_interface(drv);
a2e40bb6 5722 bss->beacon_set = 0;
460456f8 5723 }
460456f8 5724
c6e8e8e4
JM		 5725 if (ret)
5726 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d "
5727 "from %d failed", nlmode, drv->nlmode);
5728
3f5285e8
JM		 5729 return ret;
5730}
5731
5732
3f5285e8
JM		 5733static int wpa_driver_nl80211_get_capa(void *priv,
5734 struct wpa_driver_capa *capa)
5735{
a2e40bb6
FF		 5736 struct i802_bss *bss = priv;
5737 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8
JM		 5738 if (!drv->has_capability)
5739 return -1;
5740 os_memcpy(capa, &drv->capa, sizeof(*capa));
5741 return 0;
5742}
5743
5744
5745static int wpa_driver_nl80211_set_operstate(void *priv, int state)
5746{
a2e40bb6
FF		 5747 struct i802_bss *bss = priv;
5748 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8
JM		 5749
5750 wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)",
5751 __func__, drv->operstate, state, state ? "UP" : "DORMANT");
5752 drv->operstate = state;
36d84860 5753 return netlink_send_oper_ifla(drv->global->netlink, drv->ifindex, -1,
e2d02c29 5754 state ? IF_OPER_UP : IF_OPER_DORMANT);
3f5285e8
JM		 5755}
5756
01652550
JM		 5757
5758static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized)
5759{
a2e40bb6
FF		 5760 struct i802_bss *bss = priv;
5761 struct wpa_driver_nl80211_data *drv = bss->drv;
01652550
JM		 5762 struct nl_msg *msg;
5763 struct nl80211_sta_flag_update upd;
5764
5765 msg = nlmsg_alloc();
5766 if (!msg)
5767 return -ENOMEM;
5768
9fb04070 5769 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
01652550
JM		 5770
5771 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 5772 if_nametoindex(bss->ifname));
01652550
JM		 5773 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
5774
5775 os_memset(&upd, 0, sizeof(upd));
5776 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED);
5777 if (authorized)
5778 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED);
5779 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
5780
5781 return send_and_recv_msgs(drv, msg, NULL, NULL);
5782 nla_put_failure:
5783 return -ENOBUFS;
5784}
5785
3f5285e8 5786
f07ead6a
JM		 5787/* Set kernel driver on given frequency (MHz) */
5788static int i802_set_freq(void *priv, struct hostapd_freq_params *freq)
c5121837 5789{
f07ead6a
JM		 5790 struct i802_bss *bss = priv;
5791 struct wpa_driver_nl80211_data *drv = bss->drv;
5792 return wpa_driver_nl80211_set_freq(drv, freq->freq, freq->ht_enabled,
5793 freq->sec_channel_offset);
c5121837
JM		 5794}
5795
f7b3920c
JM		 5796
5797#if defined(HOSTAPD) || defined(CONFIG_AP)
c5121837 5798
c5121837
JM		 5799static inline int min_int(int a, int b)
5800{
5801 if (a < b)
5802 return a;
5803 return b;
5804}
5805
5806
5807static int get_key_handler(struct nl_msg *msg, void *arg)
5808{
5809 struct nlattr *tb[NL80211_ATTR_MAX + 1];
5810 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
5811
5812 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
5813 genlmsg_attrlen(gnlh, 0), NULL);
5814
5815 /*
5816 * TODO: validate the key index and mac address!
5817 * Otherwise, there's a race condition as soon as
5818 * the kernel starts sending key notifications.
5819 */
5820
5821 if (tb[NL80211_ATTR_KEY_SEQ])
5822 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]),
5823 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6));
5824 return NL_SKIP;
5825}
5826
5827
5828static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
5829 int idx, u8 *seq)
5830{
a2e40bb6
FF		 5831 struct i802_bss *bss = priv;
5832 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 5833 struct nl_msg *msg;
5834
5835 msg = nlmsg_alloc();
5836 if (!msg)
5837 return -ENOMEM;
5838
9fb04070 5839 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY);
c5121837
JM		 5840
5841 if (addr)
5842 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5843 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
5844 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
5845
5846 memset(seq, 0, 6);
5847
5848 return send_and_recv_msgs(drv, msg, get_key_handler, seq);
5849 nla_put_failure:
5850 return -ENOBUFS;
5851}
5852
5853
5854static int i802_set_rate_sets(void *priv, int *supp_rates, int *basic_rates,
5855 int mode)
5856{
a2e40bb6
FF		 5857 struct i802_bss *bss = priv;
5858 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 5859 struct nl_msg *msg;
5860 u8 rates[NL80211_MAX_SUPP_RATES];
5861 u8 rates_len = 0;
5862 int i;
5863
5864 msg = nlmsg_alloc();
5865 if (!msg)
5866 return -ENOMEM;
5867
9fb04070 5868 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS);
c5121837
JM		 5869
5870 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; i++)
5871 rates[rates_len++] = basic_rates[i] / 5;
5872
5873 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates);
5874
a2e40bb6 5875 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
c5121837
JM		 5876
5877 return send_and_recv_msgs(drv, msg, NULL, NULL);
5878 nla_put_failure:
5879 return -ENOBUFS;
5880}
5881
e3802622 5882
c5121837
JM		 5883static int i802_set_rts(void *priv, int rts)
5884{
a2e40bb6
FF		 5885 struct i802_bss *bss = priv;
5886 struct wpa_driver_nl80211_data *drv = bss->drv;
ad649451
JM		 5887 struct nl_msg *msg;
5888 int ret = -ENOBUFS;
5889 u32 val;
c5121837 5890
ad649451
JM		 5891 msg = nlmsg_alloc();
5892 if (!msg)
5893 return -ENOMEM;
c5121837 5894
ad649451
JM		 5895 if (rts >= 2347)
5896 val = (u32) -1;
5897 else
5898 val = rts;
c5121837 5899
9fb04070 5900 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
ad649451
JM		 5901 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5902 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val);
5903
5904 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5905 if (!ret)
5906 return 0;
5907nla_put_failure:
5908 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: "
5909 "%d (%s)", rts, ret, strerror(-ret));
5910 return ret;
c5121837
JM		 5911}
5912
5913
5914static int i802_set_frag(void *priv, int frag)
5915{
a2e40bb6
FF		 5916 struct i802_bss *bss = priv;
5917 struct wpa_driver_nl80211_data *drv = bss->drv;
ad649451
JM		 5918 struct nl_msg *msg;
5919 int ret = -ENOBUFS;
5920 u32 val;
c5121837 5921
ad649451
JM		 5922 msg = nlmsg_alloc();
5923 if (!msg)
5924 return -ENOMEM;
c5121837 5925
ad649451
JM		 5926 if (frag >= 2346)
5927 val = (u32) -1;
5928 else
5929 val = frag;
c5121837 5930
9fb04070 5931 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
ad649451
JM		 5932 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5933 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val);
5934
5935 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5936 if (!ret)
5937 return 0;
5938nla_put_failure:
5939 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold "
5940 "%d: %d (%s)", frag, ret, strerror(-ret));
5941 return ret;
c5121837
JM		 5942}
5943
5944
c5121837
JM		 5945static int i802_flush(void *priv)
5946{
a2e40bb6
FF		 5947 struct i802_bss *bss = priv;
5948 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 5949 struct nl_msg *msg;
5950
5951 msg = nlmsg_alloc();
5952 if (!msg)
5953 return -1;
5954
9fb04070 5955 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION);
c5121837
JM		 5956
5957 /*
5958 * XXX: FIX! this needs to flush all VLANs too
5959 */
5960 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 5961 if_nametoindex(bss->ifname));
c5121837
JM		 5962
5963 return send_and_recv_msgs(drv, msg, NULL, NULL);
5964 nla_put_failure:
5965 return -ENOBUFS;
5966}
5967
5968
5969static int get_sta_handler(struct nl_msg *msg, void *arg)
5970{
5971 struct nlattr *tb[NL80211_ATTR_MAX + 1];
5972 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
5973 struct hostap_sta_driver_data *data = arg;
5974 struct nlattr *stats[NL80211_STA_INFO_MAX + 1];
5975 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
5976 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
5977 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
5978 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
5979 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
5980 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
5981 };
5982
5983 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
5984 genlmsg_attrlen(gnlh, 0), NULL);
5985
5986 /*
5987 * TODO: validate the interface and mac address!
5988 * Otherwise, there's a race condition as soon as
5989 * the kernel starts sending station notifications.
5990 */
5991
5992 if (!tb[NL80211_ATTR_STA_INFO]) {
5993 wpa_printf(MSG_DEBUG, "sta stats missing!");
5994 return NL_SKIP;
5995 }
5996 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX,
5997 tb[NL80211_ATTR_STA_INFO],
5998 stats_policy)) {
5999 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!");
6000 return NL_SKIP;
6001 }
6002
6003 if (stats[NL80211_STA_INFO_INACTIVE_TIME])
6004 data->inactive_msec =
6005 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]);
6006 if (stats[NL80211_STA_INFO_RX_BYTES])
6007 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]);
6008 if (stats[NL80211_STA_INFO_TX_BYTES])
6009 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]);
6010 if (stats[NL80211_STA_INFO_RX_PACKETS])
6011 data->rx_packets =
6012 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]);
6013 if (stats[NL80211_STA_INFO_TX_PACKETS])
6014 data->tx_packets =
6015 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]);
6016
6017 return NL_SKIP;
6018}
6019
6020static int i802_read_sta_data(void *priv, struct hostap_sta_driver_data *data,
6021 const u8 *addr)
6022{
a2e40bb6
FF		 6023 struct i802_bss *bss = priv;
6024 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 6025 struct nl_msg *msg;
6026
6027 os_memset(data, 0, sizeof(*data));
6028 msg = nlmsg_alloc();
6029 if (!msg)
6030 return -ENOMEM;
6031
9fb04070 6032 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION);
c5121837
JM		 6033
6034 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
a2e40bb6 6035 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
c5121837
JM		 6036
6037 return send_and_recv_msgs(drv, msg, get_sta_handler, data);
6038 nla_put_failure:
6039 return -ENOBUFS;
6040}
6041
6042
c5121837
JM		 6043static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
6044 int cw_min, int cw_max, int burst_time)
6045{
a2e40bb6
FF		 6046 struct i802_bss *bss = priv;
6047 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 6048 struct nl_msg *msg;
6049 struct nlattr *txq, *params;
6050
6051 msg = nlmsg_alloc();
6052 if (!msg)
6053 return -1;
6054
9fb04070 6055 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
c5121837 6056
a2e40bb6 6057 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
c5121837
JM		 6058
6059 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS);
6060 if (!txq)
6061 goto nla_put_failure;
6062
6063 /* We are only sending parameters for a single TXQ at a time */
6064 params = nla_nest_start(msg, 1);
6065 if (!params)
6066 goto nla_put_failure;
6067
7e3c1781
JM		 6068 switch (queue) {
6069 case 0:
6070 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO);
6071 break;
6072 case 1:
6073 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI);
6074 break;
6075 case 2:
6076 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE);
6077 break;
6078 case 3:
6079 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK);
6080 break;
6081 }
c5121837
JM		 6082 /* Burst time is configured in units of 0.1 msec and TXOP parameter in
6083 * 32 usec, so need to convert the value here. */
6084 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32);
6085 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min);
6086 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max);
6087 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs);
6088
6089 nla_nest_end(msg, params);
6090
6091 nla_nest_end(msg, txq);
6092
6093 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
6094 return 0;
6095 nla_put_failure:
6096 return -1;
6097}
6098
6099
c5121837
JM		 6100static int i802_set_sta_vlan(void *priv, const u8 *addr,
6101 const char *ifname, int vlan_id)
6102{
a2e40bb6
FF		 6103 struct i802_bss *bss = priv;
6104 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837 6105 struct nl_msg *msg;
cd1d72c1 6106 int ret = -ENOBUFS;
c5121837
JM		 6107
6108 msg = nlmsg_alloc();
6109 if (!msg)
6110 return -ENOMEM;
6111
9fb04070 6112 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
c5121837
JM		 6113
6114 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 6115 if_nametoindex(bss->ifname));
c5121837 6116 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
1c766b09 6117 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN,
c5121837
JM		 6118 if_nametoindex(ifname));
6119
cd1d72c1
JM		 6120 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6121 if (ret < 0) {
6122 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr="
6123 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)",
6124 MAC2STR(addr), ifname, vlan_id, ret,
6125 strerror(-ret));
6126 }
c5121837 6127 nla_put_failure:
cd1d72c1 6128 return ret;
c5121837
JM		 6129}
6130
fbbfcbac 6131
c5121837
JM		 6132static int i802_get_inact_sec(void *priv, const u8 *addr)
6133{
6134 struct hostap_sta_driver_data data;
6135 int ret;
6136
6137 data.inactive_msec = (unsigned long) -1;
6138 ret = i802_read_sta_data(priv, &data, addr);
6139 if (ret || data.inactive_msec == (unsigned long) -1)
6140 return -1;
6141 return data.inactive_msec / 1000;
6142}
6143
6144
6145static int i802_sta_clear_stats(void *priv, const u8 *addr)
6146{
6147#if 0
6148 /* TODO */
6149#endif
6150 return 0;
6151}
6152
6153
731723a5
JM		 6154static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
6155 int reason)
c5121837 6156{
a2e40bb6 6157 struct i802_bss *bss = priv;
c5121837
JM		 6158 struct ieee80211_mgmt mgmt;
6159
6160 memset(&mgmt, 0, sizeof(mgmt));
6161 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
6162 WLAN_FC_STYPE_DEAUTH);
6163 memcpy(mgmt.da, addr, ETH_ALEN);
731723a5
JM		 6164 memcpy(mgmt.sa, own_addr, ETH_ALEN);
6165 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
c5121837 6166 mgmt.u.deauth.reason_code = host_to_le16(reason);
a2e40bb6 6167 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
9f324b61
JM		 6168 IEEE80211_HDRLEN +
6169 sizeof(mgmt.u.deauth));
c5121837
JM		 6170}
6171
6172
731723a5
JM		 6173static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
6174 int reason)
c5121837 6175{
a2e40bb6 6176 struct i802_bss *bss = priv;
c5121837
JM		 6177 struct ieee80211_mgmt mgmt;
6178
6179 memset(&mgmt, 0, sizeof(mgmt));
6180 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
6181 WLAN_FC_STYPE_DISASSOC);
6182 memcpy(mgmt.da, addr, ETH_ALEN);
731723a5
JM		 6183 memcpy(mgmt.sa, own_addr, ETH_ALEN);
6184 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
c5121837 6185 mgmt.u.disassoc.reason_code = host_to_le16(reason);
a2e40bb6 6186 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
9f324b61
JM		 6187 IEEE80211_HDRLEN +
6188 sizeof(mgmt.u.disassoc));
c5121837
JM		 6189}
6190
ee7ab173
JB		 6191#endif /* HOSTAPD || CONFIG_AP */
6192
6193#ifdef HOSTAPD
c5121837 6194
f07ead6a
JM		 6195static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
6196{
6197 int i;
6198 int *old;
6199
6200 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d",
6201 ifidx);
6202 for (i = 0; i < drv->num_if_indices; i++) {
6203 if (drv->if_indices[i] == 0) {
6204 drv->if_indices[i] = ifidx;
6205 return;
6206 }
6207 }
6208
6209 if (drv->if_indices != drv->default_if_indices)
6210 old = drv->if_indices;
6211 else
6212 old = NULL;
6213
6214 drv->if_indices = os_realloc(old,
6215 sizeof(int) * (drv->num_if_indices + 1));
6216 if (!drv->if_indices) {
6217 if (!old)
6218 drv->if_indices = drv->default_if_indices;
6219 else
6220 drv->if_indices = old;
6221 wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
6222 "interfaces");
6223 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
6224 return;
6225 } else if (!old)
6226 os_memcpy(drv->if_indices, drv->default_if_indices,
6227 sizeof(drv->default_if_indices));
6228 drv->if_indices[drv->num_if_indices] = ifidx;
6229 drv->num_if_indices++;
6230}
6231
6232
6233static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
6234{
6235 int i;
6236
6237 for (i = 0; i < drv->num_if_indices; i++) {
6238 if (drv->if_indices[i] == ifidx) {
6239 drv->if_indices[i] = 0;
6240 break;
6241 }
6242 }
6243}
6244
6245
6246static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
6247{
6248 int i;
6249
6250 for (i = 0; i < drv->num_if_indices; i++)
6251 if (drv->if_indices[i] == ifidx)
6252 return 1;
6253
6254 return 0;
6255}
6256
6257
6258static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val,
6259 const char *bridge_ifname)
6260{
6261 struct i802_bss *bss = priv;
6262 struct wpa_driver_nl80211_data *drv = bss->drv;
6263 char name[IFNAMSIZ + 1];
6264
6265 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid);
6266 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR
6267 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name);
6268 if (val) {
6269 if (!if_nametoindex(name)) {
6270 if (nl80211_create_iface(drv, name,
6271 NL80211_IFTYPE_AP_VLAN,
6272 NULL, 1) < 0)
6273 return -1;
6274 if (bridge_ifname &&
c81eff1a
BG		 6275 linux_br_add_if(drv->global->ioctl_sock,
6276 bridge_ifname, name) < 0)
f07ead6a
JM		 6277 return -1;
6278 }
c81eff1a 6279 linux_set_iface_flags(drv->global->ioctl_sock, name, 1);
f07ead6a
JM		 6280 return i802_set_sta_vlan(priv, addr, name, 0);
6281 } else {
6282 i802_set_sta_vlan(priv, addr, bss->ifname, 0);
6283 return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN,
6284 name);
6285 }
6286}
6287
6288
6289static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
6290{
6291 struct wpa_driver_nl80211_data *drv = eloop_ctx;
6292 struct sockaddr_ll lladdr;
6293 unsigned char buf[3000];
6294 int len;
6295 socklen_t fromlen = sizeof(lladdr);
6296
6297 len = recvfrom(sock, buf, sizeof(buf), 0,
6298 (struct sockaddr *)&lladdr, &fromlen);
6299 if (len < 0) {
6300 perror("recv");
6301 return;
6302 }
6303
6304 if (have_ifidx(drv, lladdr.sll_ifindex))
6305 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len);
6306}
6307
6308
94627f6c 6309static int i802_check_bridge(struct wpa_driver_nl80211_data *drv,
e17a2477 6310 struct i802_bss *bss,
94627f6c
JM		 6311 const char *brname, const char *ifname)
6312{
6313 int ifindex;
6314 char in_br[IFNAMSIZ];
6315
e17a2477 6316 os_strlcpy(bss->brname, brname, IFNAMSIZ);
94627f6c
JM		 6317 ifindex = if_nametoindex(brname);
6318 if (ifindex == 0) {
6319 /*
6320 * Bridge was configured, but the bridge device does
6321 * not exist. Try to add it now.
6322 */
c81eff1a 6323 if (linux_br_add(drv->global->ioctl_sock, brname) < 0) {
94627f6c
JM		 6324 wpa_printf(MSG_ERROR, "nl80211: Failed to add the "
6325 "bridge interface %s: %s",
6326 brname, strerror(errno));
6327 return -1;
6328 }
e17a2477 6329 bss->added_bridge = 1;
94627f6c
JM		 6330 add_ifidx(drv, if_nametoindex(brname));
6331 }
6332
6333 if (linux_br_get(in_br, ifname) == 0) {
6334 if (os_strcmp(in_br, brname) == 0)
6335 return 0; /* already in the bridge */
6336
6337 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from "
6338 "bridge %s", ifname, in_br);
c81eff1a
BG		 6339 if (linux_br_del_if(drv->global->ioctl_sock, in_br, ifname) <
6340 0) {
94627f6c
JM		 6341 wpa_printf(MSG_ERROR, "nl80211: Failed to "
6342 "remove interface %s from bridge "
6343 "%s: %s",
6344 ifname, brname, strerror(errno));
6345 return -1;
6346 }
6347 }
6348
6349 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s",
6350 ifname, brname);
c81eff1a 6351 if (linux_br_add_if(drv->global->ioctl_sock, brname, ifname) < 0) {
94627f6c
JM		 6352 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s "
6353 "into bridge %s: %s",
6354 ifname, brname, strerror(errno));
6355 return -1;
6356 }
e17a2477 6357 bss->added_if_into_bridge = 1;
94627f6c
JM		 6358
6359 return 0;
6360}
6361
6362
92f475b4
JM		 6363static void *i802_init(struct hostapd_data *hapd,
6364 struct wpa_init_params *params)
c5121837
JM		 6365{
6366 struct wpa_driver_nl80211_data *drv;
a2e40bb6 6367 struct i802_bss *bss;
c5121837 6368 size_t i;
94627f6c
JM		 6369 char brname[IFNAMSIZ];
6370 int ifindex, br_ifindex;
6371 int br_added = 0;
c5121837 6372
4b24282a
JM		 6373 bss = wpa_driver_nl80211_init(hapd, params->ifname,
6374 params->global_priv);
a2e40bb6 6375 if (bss == NULL)
c5121837 6376 return NULL;
c5121837 6377
a2e40bb6 6378 drv = bss->drv;
0382097e 6379 drv->nlmode = NL80211_IFTYPE_AP;
7635bfb0
JB		 6380 drv->eapol_sock = -1;
6381
94627f6c
JM		 6382 if (linux_br_get(brname, params->ifname) == 0) {
6383 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s",
6384 params->ifname, brname);
6385 br_ifindex = if_nametoindex(brname);
6386 } else {
6387 brname[0] = '\0';
6388 br_ifindex = 0;
6389 }
6390
c5121837
JM		 6391 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
6392 drv->if_indices = drv->default_if_indices;
92f475b4 6393 for (i = 0; i < params->num_bridge; i++) {
94627f6c
JM		 6394 if (params->bridge[i]) {
6395 ifindex = if_nametoindex(params->bridge[i]);
6396 if (ifindex)
6397 add_ifidx(drv, ifindex);
6398 if (ifindex == br_ifindex)
6399 br_added = 1;
6400 }
c5121837 6401 }
94627f6c
JM		 6402 if (!br_added && br_ifindex &&
6403 (params->num_bridge == 0 || !params->bridge[0]))
6404 add_ifidx(drv, br_ifindex);
c5121837 6405
ad1e68e6
JM		 6406 /* start listening for EAPOL on the default AP interface */
6407 add_ifidx(drv, drv->ifindex);
6408
c81eff1a 6409 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0))
6980c191 6410 goto failed;
ad1e68e6 6411
6980c191 6412 if (params->bssid) {
c81eff1a 6413 if (linux_set_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
2ac9688e 6414 params->bssid))
460456f8
JM		 6415 goto failed;
6416 }
ad1e68e6 6417
b1f625e0 6418 if (wpa_driver_nl80211_set_mode(bss, drv->nlmode)) {
ad1e68e6 6419 wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s "
a2e40bb6 6420 "into AP mode", bss->ifname);
bbaf0837 6421 goto failed;
ad1e68e6
JM		 6422 }
6423
94627f6c 6424 if (params->num_bridge && params->bridge[0] &&
e17a2477 6425 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0)
94627f6c
JM		 6426 goto failed;
6427
c81eff1a 6428 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1))
bbaf0837 6429 goto failed;
ad1e68e6
JM		 6430
6431 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE));
6432 if (drv->eapol_sock < 0) {
6433 perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)");
bbaf0837 6434 goto failed;
ad1e68e6
JM		 6435 }
6436
6437 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL))
6438 {
6439 printf("Could not register read socket for eapol\n");
c5121837 6440 goto failed;
ad1e68e6
JM		 6441 }
6442
c81eff1a
BG		 6443 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
6444 params->own_addr))
bbaf0837 6445 goto failed;
c5121837 6446
a2e40bb6 6447 return bss;
c5121837
JM		 6448
6449failed:
7635bfb0 6450 wpa_driver_nl80211_deinit(bss);
bbaf0837
JM		 6451 return NULL;
6452}
c5121837 6453
c5121837 6454
bbaf0837
JM		 6455static void i802_deinit(void *priv)
6456{
6457 wpa_driver_nl80211_deinit(priv);
c5121837
JM		 6458}
6459
6460#endif /* HOSTAPD */
6461
6462
22a7c9d7
JM		 6463static enum nl80211_iftype wpa_driver_nl80211_if_type(
6464 enum wpa_driver_if_type type)
6465{
6466 switch (type) {
6467 case WPA_IF_STATION:
9f51b113 6468 return NL80211_IFTYPE_STATION;
75bde05d
JM		 6469 case WPA_IF_P2P_CLIENT:
6470 case WPA_IF_P2P_GROUP:
9f51b113 6471 return NL80211_IFTYPE_P2P_CLIENT;
22a7c9d7
JM		 6472 case WPA_IF_AP_VLAN:
6473 return NL80211_IFTYPE_AP_VLAN;
6474 case WPA_IF_AP_BSS:
6475 return NL80211_IFTYPE_AP;
9f51b113
JB		 6476 case WPA_IF_P2P_GO:
6477 return NL80211_IFTYPE_P2P_GO;
22a7c9d7
JM		 6478 }
6479 return -1;
6480}
6481
6482
482856c8
JM		 6483#ifdef CONFIG_P2P
6484
f2ed8023
JM		 6485static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr)
6486{
6487 struct wpa_driver_nl80211_data *drv;
6488 dl_list_for_each(drv, &global->interfaces,
6489 struct wpa_driver_nl80211_data, list) {
6490 if (os_memcmp(addr, drv->addr, ETH_ALEN) == 0)
6491 return 1;
6492 }
6493 return 0;
6494}
6495
6496
6497static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv,
6498 u8 *new_addr)
6499{
6500 unsigned int idx;
6501
6502 if (!drv->global)
6503 return -1;
6504
6505 os_memcpy(new_addr, drv->addr, ETH_ALEN);
6506 for (idx = 0; idx < 64; idx++) {
6507 new_addr[0] = drv->addr[0] | 0x02;
6508 new_addr[0] ^= idx << 2;
6509 if (!nl80211_addr_in_use(drv->global, new_addr))
6510 break;
6511 }
6512 if (idx == 64)
6513 return -1;
6514
6515 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address "
6516 MACSTR, MAC2STR(new_addr));
6517
6518 return 0;
6519}
6520
482856c8
JM		 6521#endif /* CONFIG_P2P */
6522
f2ed8023 6523
7ab68865 6524static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type,
8043e725 6525 const char *ifname, const u8 *addr,
f3585c8a 6526 void *bss_ctx, void **drv_priv,
e17a2477
JM		 6527 char *force_ifname, u8 *if_addr,
6528 const char *bridge)
22a7c9d7 6529{
a2e40bb6
FF		 6530 struct i802_bss *bss = priv;
6531 struct wpa_driver_nl80211_data *drv = bss->drv;
22a7c9d7
JM		 6532 int ifidx;
6533#ifdef HOSTAPD
a2e40bb6 6534 struct i802_bss *new_bss = NULL;
22a7c9d7
JM		 6535
6536 if (type == WPA_IF_AP_BSS) {
a2e40bb6
FF		 6537 new_bss = os_zalloc(sizeof(*new_bss));
6538 if (new_bss == NULL)
22a7c9d7
JM		 6539 return -1;
6540 }
6541#endif /* HOSTAPD */
6542
f3585c8a
JM		 6543 if (addr)
6544 os_memcpy(if_addr, addr, ETH_ALEN);
22a7c9d7 6545 ifidx = nl80211_create_iface(drv, ifname,
fbbfcbac
FF		 6546 wpa_driver_nl80211_if_type(type), addr,
6547 0);
22a7c9d7
JM		 6548 if (ifidx < 0) {
6549#ifdef HOSTAPD
a2e40bb6 6550 os_free(new_bss);
22a7c9d7
JM		 6551#endif /* HOSTAPD */
6552 return -1;
6553 }
6554
f3585c8a 6555 if (!addr &&
c81eff1a
BG		 6556 linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
6557 if_addr) < 0) {
c55f774d 6558 nl80211_remove_iface(drv, ifidx);
f3585c8a 6559 return -1;
c55f774d
JM		 6560 }
6561
6562#ifdef CONFIG_P2P
6563 if (!addr &&
6564 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP ||
6565 type == WPA_IF_P2P_GO)) {
6566 /* Enforce unique P2P Interface Address */
6567 u8 new_addr[ETH_ALEN], own_addr[ETH_ALEN];
6568
c81eff1a
BG		 6569 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
6570 own_addr) < 0 ||
6571 linux_get_ifhwaddr(drv->global->ioctl_sock, ifname,
6572 new_addr) < 0) {
c55f774d
JM		 6573 nl80211_remove_iface(drv, ifidx);
6574 return -1;
6575 }
6576 if (os_memcmp(own_addr, new_addr, ETH_ALEN) == 0) {
6577 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address "
6578 "for P2P group interface");
f2ed8023 6579 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) {
c55f774d
JM		 6580 nl80211_remove_iface(drv, ifidx);
6581 return -1;
6582 }
c81eff1a 6583 if (linux_set_ifhwaddr(drv->global->ioctl_sock, ifname,
c55f774d
JM		 6584 new_addr) < 0) {
6585 nl80211_remove_iface(drv, ifidx);
6586 return -1;
6587 }
c55f774d 6588 }
f67eeb5c 6589 os_memcpy(if_addr, new_addr, ETH_ALEN);
c55f774d
JM		 6590 }
6591#endif /* CONFIG_P2P */
f3585c8a 6592
22a7c9d7 6593#ifdef HOSTAPD
e17a2477
JM		 6594 if (bridge &&
6595 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) {
6596 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new "
6597 "interface %s to a bridge %s", ifname, bridge);
6598 nl80211_remove_iface(drv, ifidx);
6599 os_free(new_bss);
6600 return -1;
6601 }
6602
22a7c9d7 6603 if (type == WPA_IF_AP_BSS) {
c81eff1a
BG		 6604 if (linux_set_iface_flags(drv->global->ioctl_sock, ifname, 1))
6605 {
34f2f814 6606 nl80211_remove_iface(drv, ifidx);
07179987 6607 os_free(new_bss);
22a7c9d7
JM		 6608 return -1;
6609 }
a2e40bb6
FF		 6610 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ);
6611 new_bss->ifindex = ifidx;
6612 new_bss->drv = drv;
6613 new_bss->next = drv->first_bss.next;
6614 drv->first_bss.next = new_bss;
6615 if (drv_priv)
6616 *drv_priv = new_bss;
22a7c9d7
JM		 6617 }
6618#endif /* HOSTAPD */
6619
ff6a158b
JM		 6620 if (drv->global)
6621 drv->global->if_add_ifindex = ifidx;
6622
22a7c9d7
JM		 6623 return 0;
6624}
6625
6626
6627static int wpa_driver_nl80211_if_remove(void *priv,
6628 enum wpa_driver_if_type type,
6629 const char *ifname)
6630{
a2e40bb6
FF		 6631 struct i802_bss *bss = priv;
6632 struct wpa_driver_nl80211_data *drv = bss->drv;
22a7c9d7
JM		 6633 int ifindex = if_nametoindex(ifname);
6634
e748062b
JM		 6635 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d",
6636 __func__, type, ifname, ifindex);
6637 if (ifindex <= 0)
6638 return -1;
e17a2477
JM		 6639
6640#ifdef HOSTAPD
6641 if (bss->added_if_into_bridge) {
c81eff1a
BG		 6642 if (linux_br_del_if(drv->global->ioctl_sock, bss->brname,
6643 bss->ifname) < 0)
e17a2477
JM		 6644 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
6645 "interface %s from bridge %s: %s",
6646 bss->ifname, bss->brname, strerror(errno));
6647 }
6648 if (bss->added_bridge) {
c81eff1a 6649 if (linux_br_del(drv->global->ioctl_sock, bss->brname) < 0)
e17a2477
JM		 6650 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
6651 "bridge %s: %s",
6652 bss->brname, strerror(errno));
6653 }
6654#endif /* HOSTAPD */
6655
22a7c9d7
JM		 6656 nl80211_remove_iface(drv, ifindex);
6657
6658#ifdef HOSTAPD
a2e40bb6
FF		 6659 if (type != WPA_IF_AP_BSS)
6660 return 0;
6661
6662 if (bss != &drv->first_bss) {
8546ea19 6663 struct i802_bss *tbss;
a2e40bb6 6664
8546ea19
JM		 6665 for (tbss = &drv->first_bss; tbss; tbss = tbss->next) {
6666 if (tbss->next == bss) {
6667 tbss->next = bss->next;
6668 os_free(bss);
6669 bss = NULL;
6670 break;
6671 }
22a7c9d7 6672 }
8546ea19
JM		 6673 if (bss)
6674 wpa_printf(MSG_INFO, "nl80211: %s - could not find "
6675 "BSS %p in the list", __func__, bss);
22a7c9d7
JM		 6676 }
6677#endif /* HOSTAPD */
6678
6679 return 0;
6680}
6681
6682
55777702
JM		 6683static int cookie_handler(struct nl_msg *msg, void *arg)
6684{
6685 struct nlattr *tb[NL80211_ATTR_MAX + 1];
6686 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
6687 u64 *cookie = arg;
6688 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
6689 genlmsg_attrlen(gnlh, 0), NULL);
6690 if (tb[NL80211_ATTR_COOKIE])
6691 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
6692 return NL_SKIP;
6693}
6694
6695
9884f9cc 6696static int nl80211_send_frame_cmd(struct wpa_driver_nl80211_data *drv,
5dfca53f
JB		 6697 unsigned int freq, unsigned int wait,
6698 const u8 *buf, size_t buf_len,
6699 u64 *cookie_out)
9884f9cc
JB		 6700{
6701 struct nl_msg *msg;
6702 u64 cookie;
6703 int ret = -1;
6704
6705 msg = nlmsg_alloc();
6706 if (!msg)
6707 return -1;
6708
9fb04070 6709 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME);
9884f9cc
JB		 6710
6711 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6712 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
9db931ed
JM		 6713 if (wait)
6714 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait);
5dfca53f 6715 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
9884f9cc
JB		 6716 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf);
6717
6718 cookie = 0;
6719 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
6720 msg = NULL;
6721 if (ret) {
6722 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d "
a05225c8
JM		 6723 "(%s) (freq=%u wait=%u)", ret, strerror(-ret),
6724 freq, wait);
9884f9cc
JB		 6725 goto nla_put_failure;
6726 }
6727 wpa_printf(MSG_DEBUG, "nl80211: Frame TX command accepted; "
6728 "cookie 0x%llx", (long long unsigned int) cookie);
6729
6730 if (cookie_out)
6731 *cookie_out = cookie;
6732
6733nla_put_failure:
6734 nlmsg_free(msg);
6735 return ret;
6736}
6737
6738
58f6fbe0 6739static int wpa_driver_nl80211_send_action(void *priv, unsigned int freq,
190b9062 6740 unsigned int wait_time,
58f6fbe0
JM		 6741 const u8 *dst, const u8 *src,
6742 const u8 *bssid,
6743 const u8 *data, size_t data_len)
6744{
a2e40bb6
FF		 6745 struct i802_bss *bss = priv;
6746 struct wpa_driver_nl80211_data *drv = bss->drv;
58f6fbe0 6747 int ret = -1;
58f6fbe0
JM		 6748 u8 *buf;
6749 struct ieee80211_hdr *hdr;
58f6fbe0 6750
5dfca53f
JB		 6751 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, "
6752 "wait=%d ms)", drv->ifindex, wait_time);
58f6fbe0
JM		 6753
6754 buf = os_zalloc(24 + data_len);
6755 if (buf == NULL)
6756 return ret;
6757 os_memcpy(buf + 24, data, data_len);
6758 hdr = (struct ieee80211_hdr *) buf;
6759 hdr->frame_control =
6760 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION);
6761 os_memcpy(hdr->addr1, dst, ETH_ALEN);
6762 os_memcpy(hdr->addr2, src, ETH_ALEN);
6763 os_memcpy(hdr->addr3, bssid, ETH_ALEN);
6764
b1f625e0 6765 if (is_ap_interface(drv->nlmode))
58f6fbe0 6766 ret = wpa_driver_nl80211_send_mlme(priv, buf, 24 + data_len);
9884f9cc 6767 else
5dfca53f
JB		 6768 ret = nl80211_send_frame_cmd(drv, freq, wait_time, buf,
6769 24 + data_len,
9884f9cc 6770 &drv->send_action_cookie);
58f6fbe0 6771
f8bf1421 6772 os_free(buf);
58f6fbe0
JM		 6773 return ret;
6774}
6775
6776
5dfca53f
JB		 6777static void wpa_driver_nl80211_send_action_cancel_wait(void *priv)
6778{
6779 struct i802_bss *bss = priv;
6780 struct wpa_driver_nl80211_data *drv = bss->drv;
6781 struct nl_msg *msg;
6782 int ret;
6783
6784 msg = nlmsg_alloc();
6785 if (!msg)
6786 return;
6787
9fb04070 6788 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL);
5dfca53f
JB		 6789
6790 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6791 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie);
6792
6793 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6794 msg = NULL;
6795 if (ret)
6796 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d "
6797 "(%s)", ret, strerror(-ret));
6798
6799 nla_put_failure:
6800 nlmsg_free(msg);
6801}
6802
6803
55777702
JM		 6804static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq,
6805 unsigned int duration)
6806{
a2e40bb6
FF		 6807 struct i802_bss *bss = priv;
6808 struct wpa_driver_nl80211_data *drv = bss->drv;
55777702
JM		 6809 struct nl_msg *msg;
6810 int ret;
6811 u64 cookie;
6812
6813 msg = nlmsg_alloc();
6814 if (!msg)
6815 return -1;
6816
9fb04070 6817 nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL);
55777702
JM		 6818
6819 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6820 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
6821 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
6822
6823 cookie = 0;
6824 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
6825 if (ret == 0) {
6826 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie "
6827 "0x%llx for freq=%u MHz duration=%u",
6828 (long long unsigned int) cookie, freq, duration);
6829 drv->remain_on_chan_cookie = cookie;
531f0331 6830 drv->pending_remain_on_chan = 1;
55777702
JM		 6831 return 0;
6832 }
6833 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel "
15ed5535
JM		 6834 "(freq=%d duration=%u): %d (%s)",
6835 freq, duration, ret, strerror(-ret));
55777702
JM		 6836nla_put_failure:
6837 return -1;
6838}
6839
6840
6841static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv)
6842{
a2e40bb6
FF		 6843 struct i802_bss *bss = priv;
6844 struct wpa_driver_nl80211_data *drv = bss->drv;
55777702
JM		 6845 struct nl_msg *msg;
6846 int ret;
6847
6848 if (!drv->pending_remain_on_chan) {
6849 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel "
6850 "to cancel");
6851 return -1;
6852 }
6853
6854 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie "
6855 "0x%llx",
6856 (long long unsigned int) drv->remain_on_chan_cookie);
6857
6858 msg = nlmsg_alloc();
6859 if (!msg)
6860 return -1;
6861
9fb04070 6862 nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL);
55777702
JM		 6863
6864 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6865 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie);
6866
6867 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6868 if (ret == 0)
6869 return 0;
6870 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: "
6871 "%d (%s)", ret, strerror(-ret));
6872nla_put_failure:
6873 return -1;
6874}
6875
6876
504e905c
JM		 6877static int wpa_driver_nl80211_probe_req_report(void *priv, int report)
6878{
a2e40bb6
FF		 6879 struct i802_bss *bss = priv;
6880 struct wpa_driver_nl80211_data *drv = bss->drv;
504e905c 6881
5582a5d1 6882 if (!report) {
a92dfde8 6883 if (drv->nl_preq.handle) {
5582a5d1 6884 eloop_unregister_read_sock(
a92dfde8
JB		 6885 nl_socket_get_fd(drv->nl_preq.handle));
6886 nl_destroy_handles(&drv->nl_preq);
5582a5d1
JB		 6887 }
6888 return 0;
6889 }
6890
a92dfde8 6891 if (drv->nl_preq.handle) {
5582a5d1
JB		 6892 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting "
6893 "already on!");
6894 return 0;
6895 }
6896
2a7b66f5 6897 if (nl_create_handles(&drv->nl_preq, drv->global->nl_cb, "preq"))
5582a5d1 6898 return -1;
5582a5d1 6899
a92dfde8 6900 if (nl80211_register_frame(drv, drv->nl_preq.handle,
5582a5d1
JB		 6901 (WLAN_FC_TYPE_MGMT << 2) |
6902 (WLAN_FC_STYPE_PROBE_REQ << 4),
a92dfde8
JB		 6903 NULL, 0) < 0)
6904 goto out_err;
5582a5d1 6905
a92dfde8 6906 eloop_register_read_sock(nl_socket_get_fd(drv->nl_preq.handle),
5582a5d1 6907 wpa_driver_nl80211_event_receive, drv,
a92dfde8 6908 drv->nl_preq.handle);
5582a5d1 6909
504e905c 6910 return 0;
5582a5d1 6911
a92dfde8
JB		 6912 out_err:
6913 nl_destroy_handles(&drv->nl_preq);
5582a5d1 6914 return -1;
504e905c
JM		 6915}
6916
6917
4e5cb1a3
JM		 6918static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
6919 int ifindex, int disabled)
6920{
6921 struct nl_msg *msg;
6922 struct nlattr *bands, *band;
6923 int ret;
6924
6925 msg = nlmsg_alloc();
6926 if (!msg)
6927 return -1;
6928
9fb04070 6929 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK);
4e5cb1a3
JM		 6930 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
6931
6932 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES);
6933 if (!bands)
6934 goto nla_put_failure;
6935
6936 /*
6937 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything
6938 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS
6939 * rates. All 5 GHz rates are left enabled.
6940 */
6941 band = nla_nest_start(msg, NL80211_BAND_2GHZ);
6942 if (!band)
6943 goto nla_put_failure;
6944 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8,
6945 "\x0c\x12\x18\x24\x30\x48\x60\x6c");
6946 nla_nest_end(msg, band);
6947
6948 nla_nest_end(msg, bands);
6949
6950 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6951 msg = NULL;
6952 if (ret) {
6953 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d "
6954 "(%s)", ret, strerror(-ret));
6955 }
6956
6957 return ret;
6958
6959nla_put_failure:
6960 nlmsg_free(msg);
6961 return -1;
6962}
6963
6964
6965static int wpa_driver_nl80211_disable_11b_rates(void *priv, int disabled)
6966{
a2e40bb6
FF		 6967 struct i802_bss *bss = priv;
6968 struct wpa_driver_nl80211_data *drv = bss->drv;
4e5cb1a3
JM		 6969 drv->disable_11b_rates = disabled;
6970 return nl80211_disable_11b_rates(drv, drv->ifindex, disabled);
6971}
6972
6973
af473088
JM		 6974static int wpa_driver_nl80211_deinit_ap(void *priv)
6975{
a2e40bb6
FF		 6976 struct i802_bss *bss = priv;
6977 struct wpa_driver_nl80211_data *drv = bss->drv;
b1f625e0 6978 if (!is_ap_interface(drv->nlmode))
af473088
JM		 6979 return -1;
6980 wpa_driver_nl80211_del_beacon(drv);
b1f625e0 6981 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION);
af473088
JM		 6982}
6983
6984
207ef3fb
JM		 6985static void wpa_driver_nl80211_resume(void *priv)
6986{
a2e40bb6
FF		 6987 struct i802_bss *bss = priv;
6988 struct wpa_driver_nl80211_data *drv = bss->drv;
c81eff1a 6989 if (linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1)) {
207ef3fb
JM		 6990 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on "
6991 "resume event");
6992 }
6993}
6994
6995
7b90c16a
JM		 6996static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap,
6997 const u8 *ies, size_t ies_len)
6998{
6999 struct i802_bss *bss = priv;
7000 struct wpa_driver_nl80211_data *drv = bss->drv;
7001 int ret;
7002 u8 *data, *pos;
7003 size_t data_len;
7004 u8 own_addr[ETH_ALEN];
7005
c81eff1a
BG		 7006 if (linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname,
7007 own_addr) < 0)
7b90c16a
JM		 7008 return -1;
7009
7010 if (action != 1) {
7011 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action "
7012 "action %d", action);
7013 return -1;
7014 }
7015
7016 /*
7017 * Action frame payload:
7018 * Category[1] = 6 (Fast BSS Transition)
7019 * Action[1] = 1 (Fast BSS Transition Request)
7020 * STA Address
7021 * Target AP Address
7022 * FT IEs
7023 */
7024
73fc617d
JM		 7025 data_len = 2 + 2 * ETH_ALEN + ies_len;
7026 data = os_malloc(data_len);
7b90c16a
JM		 7027 if (data == NULL)
7028 return -1;
7029 pos = data;
7030 *pos++ = 0x06; /* FT Action category */
7031 *pos++ = action;
7032 os_memcpy(pos, own_addr, ETH_ALEN);
7033 pos += ETH_ALEN;
7034 os_memcpy(pos, target_ap, ETH_ALEN);
7035 pos += ETH_ALEN;
7036 os_memcpy(pos, ies, ies_len);
7037
190b9062
JB		 7038 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0,
7039 drv->bssid, own_addr, drv->bssid,
7b90c16a
JM		 7040 data, data_len);
7041 os_free(data);
7042
7043 return ret;
7044}
7045
7046
b625473c
JM		 7047static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis)
7048{
7049 struct i802_bss *bss = priv;
7050 struct wpa_driver_nl80211_data *drv = bss->drv;
7051 struct nl_msg *msg, *cqm = NULL;
7052
7053 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d "
7054 "hysteresis=%d", threshold, hysteresis);
7055
7056 msg = nlmsg_alloc();
7057 if (!msg)
7058 return -1;
7059
9fb04070 7060 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM);
b625473c
JM		 7061
7062 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
7063
7064 cqm = nlmsg_alloc();
7065 if (cqm == NULL)
7066 return -1;
7067
7068 NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_THOLD, threshold);
7069 NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_HYST, hysteresis);
7070 nla_put_nested(msg, NL80211_ATTR_CQM, cqm);
7071
7072 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
7073 return 0;
7074 msg = NULL;
7075
7076nla_put_failure:
7077 if (cqm)
7078 nlmsg_free(cqm);
7079 nlmsg_free(msg);
7080 return -1;
7081}
7082
7083
1c5c7273
PS		 7084static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si)
7085{
7086 struct i802_bss *bss = priv;
7087 struct wpa_driver_nl80211_data *drv = bss->drv;
7088 int res;
7089
7090 os_memset(si, 0, sizeof(*si));
7091 res = nl80211_get_link_signal(drv, si);
7092 if (res != 0)
7093 return res;
7094
7095 return nl80211_get_link_noise(drv, si);
7096}
7097
7098
b91ab76e
JM		 7099static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len,
7100 int encrypt)
7101{
7102 struct i802_bss *bss = priv;
7103 struct wpa_driver_nl80211_data *drv = bss->drv;
7104 return wpa_driver_nl80211_send_frame(drv, data, data_len, encrypt);
7105}
7106
7107
c55f774d
JM		 7108static int nl80211_set_param(void *priv, const char *param)
7109{
c55f774d
JM		 7110 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param);
7111 if (param == NULL)
7112 return 0;
7113
7114#ifdef CONFIG_P2P
7115 if (os_strstr(param, "use_p2p_group_interface=1")) {
482856c8
JM		 7116 struct i802_bss *bss = priv;
7117 struct wpa_driver_nl80211_data *drv = bss->drv;
7118
c55f774d
JM		 7119 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
7120 "interface");
7121 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
7122 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
7123 }
7124#endif /* CONFIG_P2P */
7125
7126 return 0;
7127}
7128
7129
f2ed8023
JM		 7130static void * nl80211_global_init(void)
7131{
7132 struct nl80211_global *global;
36d84860
BG		 7133 struct netlink_config *cfg;
7134
f2ed8023
JM		 7135 global = os_zalloc(sizeof(*global));
7136 if (global == NULL)
7137 return NULL;
c81eff1a 7138 global->ioctl_sock = -1;
f2ed8023 7139 dl_list_init(&global->interfaces);
ff6a158b 7140 global->if_add_ifindex = -1;
36d84860
BG		 7141
7142 cfg = os_zalloc(sizeof(*cfg));
7143 if (cfg == NULL)
7144 goto err;
7145
7146 cfg->ctx = global;
7147 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink;
7148 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink;
7149 global->netlink = netlink_init(cfg);
7150 if (global->netlink == NULL) {
7151 os_free(cfg);
7152 goto err;
7153 }
7154
2a7b66f5
BG		 7155 if (wpa_driver_nl80211_init_nl_global(global) < 0)
7156 goto err;
7157
c81eff1a
BG		 7158 global->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
7159 if (global->ioctl_sock < 0) {
7160 perror("socket(PF_INET,SOCK_DGRAM)");
7161 goto err;
7162 }
7163
f2ed8023 7164 return global;
36d84860
BG		 7165
7166err:
7167 nl80211_global_deinit(global);
7168 return NULL;
f2ed8023
JM		 7169}
7170
7171
7172static void nl80211_global_deinit(void *priv)
7173{
7174 struct nl80211_global *global = priv;
7175 if (global == NULL)
7176 return;
7177 if (!dl_list_empty(&global->interfaces)) {
7178 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at "
7179 "nl80211_global_deinit",
7180 dl_list_len(&global->interfaces));
7181 }
36d84860
BG		 7182
7183 if (global->netlink)
7184 netlink_deinit(global->netlink);
7185
276e2d67
BG		 7186 if (global->nl80211)
7187 genl_family_put(global->nl80211);
7188 nl_destroy_handles(&global->nl);
7189
2a7b66f5
BG		 7190 if (global->nl_cb)
7191 nl_cb_put(global->nl_cb);
7192
c81eff1a
BG		 7193 if (global->ioctl_sock >= 0)
7194 close(global->ioctl_sock);
7195
f2ed8023
JM		 7196 os_free(global);
7197}
7198
7199
6859f1cb
BG		 7200static const char * nl80211_get_radio_name(void *priv)
7201{
7202 struct i802_bss *bss = priv;
7203 struct wpa_driver_nl80211_data *drv = bss->drv;
7204 return drv->phyname;
7205}
7206
7207
a6efc65d
JM		 7208static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid,
7209 const u8 *pmkid)
7210{
7211 struct nl_msg *msg;
7212
7213 msg = nlmsg_alloc();
7214 if (!msg)
7215 return -ENOMEM;
7216
9fb04070 7217 nl80211_cmd(bss->drv, msg, 0, cmd);
a6efc65d
JM		 7218
7219 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
7220 if (pmkid)
7221 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid);
7222 if (bssid)
7223 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7224
7225 return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
7226 nla_put_failure:
7227 return -ENOBUFS;
7228}
7229
7230
7231static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid)
7232{
7233 struct i802_bss *bss = priv;
7234 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid));
7235 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid);
7236}
7237
7238
7239static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid)
7240{
7241 struct i802_bss *bss = priv;
7242 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR,
7243 MAC2STR(bssid));
7244 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid);
7245}
7246
7247
7248static int nl80211_flush_pmkid(void *priv)
7249{
7250 struct i802_bss *bss = priv;
7251 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs");
7252 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL);
7253}
7254
7255
b14a210c
JB		 7256static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck,
7257 const u8 *replay_ctr)
7258{
7259 struct i802_bss *bss = priv;
7260 struct wpa_driver_nl80211_data *drv = bss->drv;
7261 struct nlattr *replay_nested;
7262 struct nl_msg *msg;
7263
7264 msg = nlmsg_alloc();
7265 if (!msg)
7266 return;
7267
9fb04070 7268 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
b14a210c
JB		 7269
7270 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
7271
7272 replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
7273 if (!replay_nested)
7274 goto nla_put_failure;
7275
7276 NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek);
7277 NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck);
7278 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN,
7279 replay_ctr);
7280
7281 nla_nest_end(msg, replay_nested);
7282
7283 send_and_recv_msgs(drv, msg, NULL, NULL);
7284 return;
7285 nla_put_failure:
7286 nlmsg_free(msg);
7287}
7288
7289
bcf24348
JB		 7290static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr,
7291 int qos)
7292{
7293 struct i802_bss *bss = priv;
7294 struct {
7295 struct ieee80211_hdr hdr;
7296 u16 qos_ctl;
7297 } STRUCT_PACKED nulldata;
7298 size_t size;
7299
7300 /* Send data frame to poll STA and check whether this frame is ACKed */
7301
7302 os_memset(&nulldata, 0, sizeof(nulldata));
7303
7304 if (qos) {
7305 nulldata.hdr.frame_control =
7306 IEEE80211_FC(WLAN_FC_TYPE_DATA,
7307 WLAN_FC_STYPE_QOS_NULL);
7308 size = sizeof(nulldata);
7309 } else {
7310 nulldata.hdr.frame_control =
7311 IEEE80211_FC(WLAN_FC_TYPE_DATA,
7312 WLAN_FC_STYPE_NULLFUNC);
7313 size = sizeof(struct ieee80211_hdr);
7314 }
7315
7316 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS);
7317 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN);
7318 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
7319 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
7320
7321 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size) < 0)
7322 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to "
7323 "send poll frame");
7324}
7325
7326
3f5285e8
JM		 7327const struct wpa_driver_ops wpa_driver_nl80211_ops = {
7328 .name = "nl80211",
7329 .desc = "Linux nl80211/cfg80211",
7330 .get_bssid = wpa_driver_nl80211_get_bssid,
7331 .get_ssid = wpa_driver_nl80211_get_ssid,
3f5285e8 7332 .set_key = wpa_driver_nl80211_set_key,
6a1063e0 7333 .scan2 = wpa_driver_nl80211_scan,
d21c63b9
LC		 7334 .sched_scan = wpa_driver_nl80211_sched_scan,
7335 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan,
3f5285e8
JM		 7336 .get_scan_results2 = wpa_driver_nl80211_get_scan_results,
7337 .deauthenticate = wpa_driver_nl80211_deauthenticate,
7338 .disassociate = wpa_driver_nl80211_disassociate,
c2a04078 7339 .authenticate = wpa_driver_nl80211_authenticate,
3f5285e8 7340 .associate = wpa_driver_nl80211_associate,
f2ed8023
JM		 7341 .global_init = nl80211_global_init,
7342 .global_deinit = nl80211_global_deinit,
7343 .init2 = wpa_driver_nl80211_init,
3f5285e8 7344 .deinit = wpa_driver_nl80211_deinit,
3f5285e8
JM		 7345 .get_capa = wpa_driver_nl80211_get_capa,
7346 .set_operstate = wpa_driver_nl80211_set_operstate,
01652550 7347 .set_supp_port = wpa_driver_nl80211_set_supp_port,
6d158490 7348 .set_country = wpa_driver_nl80211_set_country,
19c3b566 7349 .set_ap = wpa_driver_nl80211_set_ap,
22a7c9d7
JM		 7350 .if_add = wpa_driver_nl80211_if_add,
7351 .if_remove = wpa_driver_nl80211_if_remove,
071f8ac4 7352 .send_mlme = wpa_driver_nl80211_send_mlme,
c3965310 7353 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data,
0f4e8b4f
JM		 7354 .sta_add = wpa_driver_nl80211_sta_add,
7355 .sta_remove = wpa_driver_nl80211_sta_remove,
db149ac9 7356 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol,
a8d6ffa4 7357 .sta_set_flags = wpa_driver_nl80211_sta_set_flags,
c5121837
JM		 7358#ifdef HOSTAPD
7359 .hapd_init = i802_init,
c5121837 7360 .hapd_deinit = i802_deinit,
f7b3920c
JM		 7361 .set_wds_sta = i802_set_wds_sta,
7362#endif /* HOSTAPD */
7363#if defined(HOSTAPD) || defined(CONFIG_AP)
c5121837
JM		 7364 .get_seqnum = i802_get_seqnum,
7365 .flush = i802_flush,
7366 .read_sta_data = i802_read_sta_data,
c5121837
JM		 7367 .get_inact_sec = i802_get_inact_sec,
7368 .sta_clear_stats = i802_sta_clear_stats,
c5121837
JM		 7369 .set_rts = i802_set_rts,
7370 .set_frag = i802_set_frag,
c5121837 7371 .set_tx_queue_params = i802_set_tx_queue_params,
c5121837 7372 .set_sta_vlan = i802_set_sta_vlan,
257da773 7373 .set_rate_sets = i802_set_rate_sets,
ee7ab173
JB		 7374 .sta_deauth = i802_sta_deauth,
7375 .sta_disassoc = i802_sta_disassoc,
7376#endif /* HOSTAPD || CONFIG_AP */
e3802622 7377 .set_freq = i802_set_freq,
58f6fbe0 7378 .send_action = wpa_driver_nl80211_send_action,
5dfca53f 7379 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait,
55777702
JM		 7380 .remain_on_channel = wpa_driver_nl80211_remain_on_channel,
7381 .cancel_remain_on_channel =
7382 wpa_driver_nl80211_cancel_remain_on_channel,
504e905c 7383 .probe_req_report = wpa_driver_nl80211_probe_req_report,
4e5cb1a3 7384 .disable_11b_rates = wpa_driver_nl80211_disable_11b_rates,
af473088 7385 .deinit_ap = wpa_driver_nl80211_deinit_ap,
207ef3fb 7386 .resume = wpa_driver_nl80211_resume,
7b90c16a 7387 .send_ft_action = nl80211_send_ft_action,
b625473c 7388 .signal_monitor = nl80211_signal_monitor,
1c5c7273 7389 .signal_poll = nl80211_signal_poll,
b91ab76e 7390 .send_frame = nl80211_send_frame,
c55f774d 7391 .set_param = nl80211_set_param,
6859f1cb 7392 .get_radio_name = nl80211_get_radio_name,
a6efc65d
JM		 7393 .add_pmkid = nl80211_add_pmkid,
7394 .remove_pmkid = nl80211_remove_pmkid,
7395 .flush_pmkid = nl80211_flush_pmkid,
b14a210c 7396 .set_rekey_info = nl80211_set_rekey_info,
bcf24348 7397 .poll_client = nl80211_poll_client,
3f5285e8 7398};
Unnamed repository; edit this file 'description' to name the repository.