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nl80211: Use a wrapper for genlmsg_put
[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
3f5285e8
JM		 105#ifndef IFF_LOWER_UP
106#define IFF_LOWER_UP 0x10000 /* driver signals L1 up */
107#endif
108#ifndef IFF_DORMANT
109#define IFF_DORMANT 0x20000 /* driver signals dormant */
110#endif
111
112#ifndef IF_OPER_DORMANT
113#define IF_OPER_DORMANT 5
114#endif
115#ifndef IF_OPER_UP
116#define IF_OPER_UP 6
117#endif
118
f2ed8023
JM		 119struct nl80211_global {
120 struct dl_list interfaces;
ff6a158b 121 int if_add_ifindex;
f2ed8023
JM		 122};
123
c5121837 124struct i802_bss {
a2e40bb6 125 struct wpa_driver_nl80211_data *drv;
c5121837 126 struct i802_bss *next;
b4fd6fab 127 int ifindex;
a2e40bb6 128 char ifname[IFNAMSIZ + 1];
e17a2477 129 char brname[IFNAMSIZ];
c5121837 130 unsigned int beacon_set:1;
e17a2477
JM		 131 unsigned int added_if_into_bridge:1;
132 unsigned int added_bridge:1;
c5121837 133};
3f5285e8
JM		 134
135struct wpa_driver_nl80211_data {
f2ed8023
JM		 136 struct nl80211_global *global;
137 struct dl_list list;
138 u8 addr[ETH_ALEN];
6859f1cb 139 char phyname[32];
3f5285e8 140 void *ctx;
08063178 141 struct netlink_data *netlink;
c5121837 142 int ioctl_sock; /* socket for ioctl() use */
3f5285e8 143 int ifindex;
7524cfb1 144 int if_removed;
a63063b4 145 int if_disabled;
7d9c3698 146 int ignore_if_down_event;
8401a6b0 147 struct rfkill_data *rfkill;
c2a04078
JM		 148 struct wpa_driver_capa capa;
149 int has_capability;
c2a04078 150
3f5285e8
JM		 151 int operstate;
152
3f5285e8
JM		 153 int scan_complete_events;
154
155 struct nl_handle *nl_handle;
335ce76b 156 struct nl_handle *nl_handle_event;
5582a5d1 157 struct nl_handle *nl_handle_preq;
3f5285e8 158 struct nl_cache *nl_cache;
335ce76b 159 struct nl_cache *nl_cache_event;
5582a5d1 160 struct nl_cache *nl_cache_preq;
3f5285e8
JM		 161 struct nl_cb *nl_cb;
162 struct genl_family *nl80211;
1c873584 163
e6b8efeb 164 u8 auth_bssid[ETH_ALEN];
c2a04078
JM		 165 u8 bssid[ETH_ALEN];
166 int associated;
fd05d64e
JM		 167 u8 ssid[32];
168 size_t ssid_len;
b1f625e0
EP		 169 enum nl80211_iftype nlmode;
170 enum nl80211_iftype ap_scan_as_station;
4832ecd7 171 unsigned int assoc_freq;
d2440ba0 172
0915d02c
JM		 173 int monitor_sock;
174 int monitor_ifidx;
866af8b6 175 int no_monitor_iface_capab;
4e5cb1a3 176 int disable_11b_rates;
7da3abe7 177
55777702
JM		 178 unsigned int pending_remain_on_chan:1;
179
180 u64 remain_on_chan_cookie;
58f6fbe0 181 u64 send_action_cookie;
c5121837 182
5582a5d1 183 unsigned int last_mgmt_freq;
86957e62 184 unsigned int ap_oper_freq;
5582a5d1 185
3812464c
JM		 186 struct wpa_driver_scan_filter *filter_ssids;
187 size_t num_filter_ssids;
188
a2e40bb6
FF		 189 struct i802_bss first_bss;
190
f10bfc9a
JM		 191#ifdef CONFIG_AP
192 struct l2_packet_data *l2;
193#endif /* CONFIG_AP */
194
c5121837 195#ifdef HOSTAPD
c5121837 196 int eapol_sock; /* socket for EAPOL frames */
c5121837
JM		 197
198 int default_if_indices[16];
199 int *if_indices;
200 int num_if_indices;
201
c5121837
JM		 202 int last_freq;
203 int last_freq_ht;
c5121837 204#endif /* HOSTAPD */
3f5285e8
JM		 205};
206
207
208static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx,
209 void *timeout_ctx);
b1f625e0
EP		 210static int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
211 enum nl80211_iftype nlmode);
362f781e 212static int
7524cfb1 213wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv);
d72aad94 214static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
77339912
JM		 215 const u8 *addr, int cmd, u16 reason_code,
216 int local_state_change);
460456f8
JM		 217static void nl80211_remove_monitor_interface(
218 struct wpa_driver_nl80211_data *drv);
5582a5d1 219static int nl80211_send_frame_cmd(struct wpa_driver_nl80211_data *drv,
5dfca53f
JB		 220 unsigned int freq, unsigned int wait,
221 const u8 *buf, size_t buf_len, u64 *cookie);
5582a5d1 222static int wpa_driver_nl80211_probe_req_report(void *priv, int report);
0915d02c 223
072ad14c 224#ifdef HOSTAPD
2135f224
JM		 225static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
226static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
97cfcf64 227static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
fbbfcbac
FF		 228static int wpa_driver_nl80211_if_remove(void *priv,
229 enum wpa_driver_if_type type,
230 const char *ifname);
37eb8da9
JM		 231#else /* HOSTAPD */
232static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
233{
234 return 0;
235}
072ad14c
JM		 236#endif /* HOSTAPD */
237
e3802622 238static int i802_set_freq(void *priv, struct hostapd_freq_params *freq);
4e5cb1a3
JM		 239static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
240 int ifindex, int disabled);
504e905c 241
21bdbe38
JM		 242static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv);
243
3f5285e8 244
b1f625e0
EP		 245static int is_ap_interface(enum nl80211_iftype nlmode)
246{
247 return (nlmode == NL80211_IFTYPE_AP ||
248 nlmode == NL80211_IFTYPE_P2P_GO);
249}
250
251
252static int is_sta_interface(enum nl80211_iftype nlmode)
253{
254 return (nlmode == NL80211_IFTYPE_STATION ||
255 nlmode == NL80211_IFTYPE_P2P_CLIENT);
256}
257
258
f5a8d422
JM		 259struct nl80211_bss_info_arg {
260 struct wpa_driver_nl80211_data *drv;
261 struct wpa_scan_results *res;
262 unsigned int assoc_freq;
20f5a4c2 263 u8 assoc_bssid[ETH_ALEN];
f5a8d422
JM		 264};
265
266static int bss_info_handler(struct nl_msg *msg, void *arg);
267
268
6241fcb1
JM		 269/* nl80211 code */
270static int ack_handler(struct nl_msg *msg, void *arg)
271{
272 int *err = arg;
273 *err = 0;
274 return NL_STOP;
275}
276
277static int finish_handler(struct nl_msg *msg, void *arg)
278{
8e8df255
JM		 279 int *ret = arg;
280 *ret = 0;
6241fcb1
JM		 281 return NL_SKIP;
282}
283
284static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err,
285 void *arg)
286{
287 int *ret = arg;
288 *ret = err->error;
289 return NL_SKIP;
290}
291
5b7b85f6
JM		 292
293static int no_seq_check(struct nl_msg *msg, void *arg)
294{
295 return NL_OK;
296}
297
298
58f6fbe0
JM		 299static int send_and_recv(struct wpa_driver_nl80211_data *drv,
300 struct nl_handle *nl_handle, struct nl_msg *msg,
301 int (*valid_handler)(struct nl_msg *, void *),
302 void *valid_data)
6241fcb1
JM		 303{
304 struct nl_cb *cb;
305 int err = -ENOMEM;
306
307 cb = nl_cb_clone(drv->nl_cb);
308 if (!cb)
309 goto out;
310
58f6fbe0 311 err = nl_send_auto_complete(nl_handle, msg);
6241fcb1
JM		 312 if (err < 0)
313 goto out;
314
315 err = 1;
316
317 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
8e8df255 318 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
6241fcb1
JM		 319 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
320
321 if (valid_handler)
322 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM,
323 valid_handler, valid_data);
324
325 while (err > 0)
58f6fbe0 326 nl_recvmsgs(nl_handle, cb);
6241fcb1
JM		 327 out:
328 nl_cb_put(cb);
329 nlmsg_free(msg);
330 return err;
331}
332
333
58f6fbe0
JM		 334static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv,
335 struct nl_msg *msg,
336 int (*valid_handler)(struct nl_msg *, void *),
337 void *valid_data)
338{
339 return send_and_recv(drv, drv->nl_handle, msg, valid_handler,
340 valid_data);
341}
342
343
97865538
JM		 344struct family_data {
345 const char *group;
346 int id;
347};
348
349
350static int family_handler(struct nl_msg *msg, void *arg)
351{
352 struct family_data *res = arg;
353 struct nlattr *tb[CTRL_ATTR_MAX + 1];
354 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
355 struct nlattr *mcgrp;
356 int i;
357
358 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
359 genlmsg_attrlen(gnlh, 0), NULL);
360 if (!tb[CTRL_ATTR_MCAST_GROUPS])
361 return NL_SKIP;
362
363 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) {
364 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1];
365 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp),
366 nla_len(mcgrp), NULL);
367 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] ||
368 !tb2[CTRL_ATTR_MCAST_GRP_ID] ||
369 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]),
370 res->group,
371 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0)
372 continue;
373 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]);
374 break;
375 };
376
377 return NL_SKIP;
378}
379
380
381static int nl_get_multicast_id(struct wpa_driver_nl80211_data *drv,
382 const char *family, const char *group)
383{
384 struct nl_msg *msg;
385 int ret = -1;
386 struct family_data res = { group, -ENOENT };
387
388 msg = nlmsg_alloc();
389 if (!msg)
390 return -ENOMEM;
391 genlmsg_put(msg, 0, 0, genl_ctrl_resolve(drv->nl_handle, "nlctrl"),
392 0, 0, CTRL_CMD_GETFAMILY, 0);
393 NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family);
394
395 ret = send_and_recv_msgs(drv, msg, family_handler, &res);
396 msg = NULL;
397 if (ret == 0)
398 ret = res.id;
399
400nla_put_failure:
401 nlmsg_free(msg);
402 return ret;
403}
404
405
9fb04070
JM		 406static void * nl80211_cmd(struct wpa_driver_nl80211_data *drv,
407 struct nl_msg *msg, int flags, uint8_t cmd)
408{
409 return genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
410 flags, cmd, 0);
411}
412
413
3f5285e8
JM		 414static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid)
415{
a2e40bb6
FF		 416 struct i802_bss *bss = priv;
417 struct wpa_driver_nl80211_data *drv = bss->drv;
c2a04078
JM		 418 if (!drv->associated)
419 return -1;
420 os_memcpy(bssid, drv->bssid, ETH_ALEN);
421 return 0;
3f5285e8
JM		 422}
423
424
3f5285e8
JM		 425static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid)
426{
a2e40bb6
FF		 427 struct i802_bss *bss = priv;
428 struct wpa_driver_nl80211_data *drv = bss->drv;
fd05d64e
JM		 429 if (!drv->associated)
430 return -1;
431 os_memcpy(ssid, drv->ssid, drv->ssid_len);
432 return drv->ssid_len;
3f5285e8
JM		 433}
434
435
7524cfb1 436static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv,
08063178 437 char *buf, size_t len, int del)
3f5285e8
JM		 438{
439 union wpa_event_data event;
440
441 os_memset(&event, 0, sizeof(event));
442 if (len > sizeof(event.interface_status.ifname))
443 len = sizeof(event.interface_status.ifname) - 1;
444 os_memcpy(event.interface_status.ifname, buf, len);
445 event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED :
446 EVENT_INTERFACE_ADDED;
447
448 wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s",
449 del ? "DEL" : "NEW",
450 event.interface_status.ifname,
451 del ? "removed" : "added");
452
a2e40bb6 453 if (os_strcmp(drv->first_bss.ifname, event.interface_status.ifname) == 0) {
7524cfb1
JM		 454 if (del)
455 drv->if_removed = 1;
456 else
457 drv->if_removed = 0;
458 }
459
08063178 460 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event);
3f5285e8
JM		 461}
462
463
7524cfb1 464static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv,
62d680c3 465 u8 *buf, size_t len)
7524cfb1 466{
62d680c3 467 int attrlen, rta_len;
7524cfb1
JM		 468 struct rtattr *attr;
469
62d680c3
JM		 470 attrlen = len;
471 attr = (struct rtattr *) buf;
7524cfb1
JM		 472
473 rta_len = RTA_ALIGN(sizeof(struct rtattr));
474 while (RTA_OK(attr, attrlen)) {
475 if (attr->rta_type == IFLA_IFNAME) {
a2e40bb6 476 if (os_strcmp(((char *) attr) + rta_len, drv->first_bss.ifname)
7524cfb1
JM		 477 == 0)
478 return 1;
479 else
480 break;
481 }
482 attr = RTA_NEXT(attr, attrlen);
483 }
484
485 return 0;
486}
487
488
489static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv,
62d680c3 490 int ifindex, u8 *buf, size_t len)
7524cfb1
JM		 491{
492 if (drv->ifindex == ifindex)
493 return 1;
494
62d680c3 495 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) {
a2e40bb6 496 drv->first_bss.ifindex = if_nametoindex(drv->first_bss.ifname);
7524cfb1
JM		 497 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed "
498 "interface");
499 wpa_driver_nl80211_finish_drv_init(drv);
500 return 1;
501 }
502
503 return 0;
504}
505
506
62d680c3
JM		 507static void wpa_driver_nl80211_event_rtm_newlink(void *ctx,
508 struct ifinfomsg *ifi,
509 u8 *buf, size_t len)
3f5285e8 510{
08063178 511 struct wpa_driver_nl80211_data *drv = ctx;
62d680c3
JM		 512 int attrlen, rta_len;
513 struct rtattr *attr;
97cfcf64 514 u32 brid = 0;
3f5285e8 515
97cfcf64
B		 516 if (!wpa_driver_nl80211_own_ifindex(drv, ifi->ifi_index, buf, len) &&
517 !have_ifidx(drv, ifi->ifi_index)) {
518 wpa_printf(MSG_DEBUG, "nl80211: Ignore event for foreign "
519 "ifindex %d", ifi->ifi_index);
3f5285e8
JM		 520 return;
521 }
522
523 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x "
524 "(%s%s%s%s)",
525 drv->operstate, ifi->ifi_flags,
526 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "",
527 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "",
528 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "",
529 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : "");
a63063b4
JM		 530
531 if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) {
532 wpa_printf(MSG_DEBUG, "nl80211: Interface down");
7d9c3698
JM		 533 if (drv->ignore_if_down_event) {
534 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down "
535 "event generated by mode change");
536 drv->ignore_if_down_event = 0;
537 } else {
538 drv->if_disabled = 1;
539 wpa_supplicant_event(drv->ctx,
540 EVENT_INTERFACE_DISABLED, NULL);
541 }
a63063b4
JM		 542 }
543
544 if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) {
545 wpa_printf(MSG_DEBUG, "nl80211: Interface up");
546 drv->if_disabled = 0;
547 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED, NULL);
548 }
549
3f5285e8
JM		 550 /*
551 * Some drivers send the association event before the operup event--in
552 * this case, lifting operstate in wpa_driver_nl80211_set_operstate()
553 * fails. This will hit us when wpa_supplicant does not need to do
554 * IEEE 802.1X authentication
555 */
556 if (drv->operstate == 1 &&
557 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP &&
558 !(ifi->ifi_flags & IFF_RUNNING))
08063178 559 netlink_send_oper_ifla(drv->netlink, drv->ifindex,
e2d02c29 560 -1, IF_OPER_UP);
3f5285e8 561
62d680c3
JM		 562 attrlen = len;
563 attr = (struct rtattr *) buf;
3f5285e8
JM		 564 rta_len = RTA_ALIGN(sizeof(struct rtattr));
565 while (RTA_OK(attr, attrlen)) {
d8816397 566 if (attr->rta_type == IFLA_IFNAME) {
7524cfb1 567 wpa_driver_nl80211_event_link(
08063178 568 drv,
7524cfb1
JM		 569 ((char *) attr) + rta_len,
570 attr->rta_len - rta_len, 0);
97cfcf64
B		 571 } else if (attr->rta_type == IFLA_MASTER)
572 brid = nla_get_u32((struct nlattr *) attr);
3f5285e8
JM		 573 attr = RTA_NEXT(attr, attrlen);
574 }
97cfcf64 575
37eb8da9 576#ifdef HOSTAPD
97cfcf64
B		 577 if (ifi->ifi_family == AF_BRIDGE && brid) {
578 /* device has been added to bridge */
579 char namebuf[IFNAMSIZ];
580 if_indextoname(brid, namebuf);
581 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s",
582 brid, namebuf);
583 add_ifidx(drv, brid);
584 }
37eb8da9 585#endif /* HOSTAPD */
3f5285e8
JM		 586}
587
588
62d680c3
JM		 589static void wpa_driver_nl80211_event_rtm_dellink(void *ctx,
590 struct ifinfomsg *ifi,
591 u8 *buf, size_t len)
3f5285e8 592{
08063178 593 struct wpa_driver_nl80211_data *drv = ctx;
62d680c3
JM		 594 int attrlen, rta_len;
595 struct rtattr *attr;
97cfcf64 596 u32 brid = 0;
3f5285e8 597
62d680c3
JM		 598 attrlen = len;
599 attr = (struct rtattr *) buf;
3f5285e8
JM		 600
601 rta_len = RTA_ALIGN(sizeof(struct rtattr));
602 while (RTA_OK(attr, attrlen)) {
603 if (attr->rta_type == IFLA_IFNAME) {
7524cfb1 604 wpa_driver_nl80211_event_link(
08063178 605 drv,
7524cfb1
JM		 606 ((char *) attr) + rta_len,
607 attr->rta_len - rta_len, 1);
97cfcf64
B		 608 } else if (attr->rta_type == IFLA_MASTER)
609 brid = nla_get_u32((struct nlattr *) attr);
3f5285e8
JM		 610 attr = RTA_NEXT(attr, attrlen);
611 }
97cfcf64 612
37eb8da9 613#ifdef HOSTAPD
97cfcf64
B		 614 if (ifi->ifi_family == AF_BRIDGE && brid) {
615 /* device has been removed from bridge */
616 char namebuf[IFNAMSIZ];
617 if_indextoname(brid, namebuf);
618 wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge "
619 "%s", brid, namebuf);
620 del_ifidx(drv, brid);
621 }
37eb8da9 622#endif /* HOSTAPD */
3f5285e8
JM		 623}
624
625
c2a04078
JM		 626static void mlme_event_auth(struct wpa_driver_nl80211_data *drv,
627 const u8 *frame, size_t len)
628{
629 const struct ieee80211_mgmt *mgmt;
630 union wpa_event_data event;
631
632 mgmt = (const struct ieee80211_mgmt *) frame;
633 if (len < 24 + sizeof(mgmt->u.auth)) {
634 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
635 "frame");
636 return;
637 }
638
e6b8efeb 639 os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN);
c2a04078
JM		 640 os_memset(&event, 0, sizeof(event));
641 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN);
642 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg);
643 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code);
644 if (len > 24 + sizeof(mgmt->u.auth)) {
645 event.auth.ies = mgmt->u.auth.variable;
646 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth);
647 }
648
649 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event);
650}
651
652
f5a8d422
JM		 653static unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv)
654{
655 struct nl_msg *msg;
656 int ret;
657 struct nl80211_bss_info_arg arg;
658
659 os_memset(&arg, 0, sizeof(arg));
660 msg = nlmsg_alloc();
661 if (!msg)
662 goto nla_put_failure;
663
9fb04070 664 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
f5a8d422
JM		 665 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
666
667 arg.drv = drv;
668 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
669 msg = NULL;
670 if (ret == 0) {
671 wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the "
672 "associated BSS from scan results: %u MHz",
673 arg.assoc_freq);
674 return arg.assoc_freq ? arg.assoc_freq : drv->assoc_freq;
675 }
676 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
677 "(%s)", ret, strerror(-ret));
678nla_put_failure:
679 nlmsg_free(msg);
680 return drv->assoc_freq;
681}
682
683
c2a04078
JM		 684static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv,
685 const u8 *frame, size_t len)
686{
687 const struct ieee80211_mgmt *mgmt;
688 union wpa_event_data event;
689 u16 status;
690
691 mgmt = (const struct ieee80211_mgmt *) frame;
692 if (len < 24 + sizeof(mgmt->u.assoc_resp)) {
693 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
694 "frame");
695 return;
696 }
697
698 status = le_to_host16(mgmt->u.assoc_resp.status_code);
699 if (status != WLAN_STATUS_SUCCESS) {
efa46078 700 os_memset(&event, 0, sizeof(event));
59ddf221 701 event.assoc_reject.bssid = mgmt->bssid;
efa46078
JM		 702 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
703 event.assoc_reject.resp_ies =
704 (u8 *) mgmt->u.assoc_resp.variable;
705 event.assoc_reject.resp_ies_len =
706 len - 24 - sizeof(mgmt->u.assoc_resp);
707 }
708 event.assoc_reject.status_code = status;
709
710 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
c2a04078
JM		 711 return;
712 }
713
714 drv->associated = 1;
715 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN);
716
717 os_memset(&event, 0, sizeof(event));
718 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
719 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable;
720 event.assoc_info.resp_ies_len =
efa46078 721 len - 24 - sizeof(mgmt->u.assoc_resp);
c2a04078
JM		 722 }
723
4832ecd7
JM		 724 event.assoc_info.freq = drv->assoc_freq;
725
c2a04078
JM		 726 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
727}
728
c1bb3e0a 729
da72a1c1
ZY		 730static void mlme_event_connect(struct wpa_driver_nl80211_data *drv,
731 enum nl80211_commands cmd, struct nlattr *status,
732 struct nlattr *addr, struct nlattr *req_ie,
733 struct nlattr *resp_ie)
734{
735 union wpa_event_data event;
736
7da2c527
JM		 737 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
738 /*
739 * Avoid reporting two association events that would confuse
740 * the core code.
741 */
742 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) "
743 "when using userspace SME", cmd);
744 return;
745 }
746
da72a1c1
ZY		 747 os_memset(&event, 0, sizeof(event));
748 if (cmd == NL80211_CMD_CONNECT &&
749 nla_get_u16(status) != WLAN_STATUS_SUCCESS) {
df89c1c8
JM		 750 if (addr)
751 event.assoc_reject.bssid = nla_data(addr);
da72a1c1
ZY		 752 if (resp_ie) {
753 event.assoc_reject.resp_ies = nla_data(resp_ie);
754 event.assoc_reject.resp_ies_len = nla_len(resp_ie);
755 }
756 event.assoc_reject.status_code = nla_get_u16(status);
757 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
758 return;
759 }
760
761 drv->associated = 1;
762 if (addr)
763 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN);
764
765 if (req_ie) {
766 event.assoc_info.req_ies = nla_data(req_ie);
767 event.assoc_info.req_ies_len = nla_len(req_ie);
768 }
769 if (resp_ie) {
770 event.assoc_info.resp_ies = nla_data(resp_ie);
771 event.assoc_info.resp_ies_len = nla_len(resp_ie);
772 }
773
f5a8d422
JM		 774 event.assoc_info.freq = nl80211_get_assoc_freq(drv);
775
da72a1c1
ZY		 776 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
777}
c2a04078 778
c1bb3e0a 779
20f5a4c2
JM		 780static void mlme_event_disconnect(struct wpa_driver_nl80211_data *drv,
781 struct nlattr *reason, struct nlattr *addr)
782{
783 union wpa_event_data data;
784
785 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
786 /*
787 * Avoid reporting two disassociation events that could
788 * confuse the core code.
789 */
790 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect "
791 "event when using userspace SME");
792 return;
793 }
794
795 drv->associated = 0;
796 os_memset(&data, 0, sizeof(data));
797 if (reason)
798 data.disassoc_info.reason_code = nla_get_u16(reason);
799 wpa_supplicant_event(drv->ctx, EVENT_DISASSOC, &data);
800}
801
802
da1fb17c
JM		 803static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv,
804 enum nl80211_commands cmd, struct nlattr *addr)
805{
806 union wpa_event_data event;
807 enum wpa_event_type ev;
808
809 if (nla_len(addr) != ETH_ALEN)
810 return;
811
812 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR,
813 cmd, MAC2STR((u8 *) nla_data(addr)));
814
815 if (cmd == NL80211_CMD_AUTHENTICATE)
816 ev = EVENT_AUTH_TIMED_OUT;
817 else if (cmd == NL80211_CMD_ASSOCIATE)
818 ev = EVENT_ASSOC_TIMED_OUT;
819 else
820 return;
821
822 os_memset(&event, 0, sizeof(event));
823 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN);
824 wpa_supplicant_event(drv->ctx, ev, &event);
825}
826
827
5582a5d1
JB		 828static void mlme_event_mgmt(struct wpa_driver_nl80211_data *drv,
829 struct nlattr *freq, const u8 *frame, size_t len)
58f6fbe0
JM		 830{
831 const struct ieee80211_mgmt *mgmt;
832 union wpa_event_data event;
833 u16 fc, stype;
834
835 mgmt = (const struct ieee80211_mgmt *) frame;
836 if (len < 24) {
837 wpa_printf(MSG_DEBUG, "nl80211: Too short action frame");
838 return;
839 }
840
841 fc = le_to_host16(mgmt->frame_control);
842 stype = WLAN_FC_GET_STYPE(fc);
843
844 os_memset(&event, 0, sizeof(event));
5582a5d1 845 if (freq) {
58f6fbe0 846 event.rx_action.freq = nla_get_u32(freq);
5582a5d1
JB		 847 drv->last_mgmt_freq = event.rx_action.freq;
848 }
849 if (stype == WLAN_FC_STYPE_ACTION) {
850 event.rx_action.da = mgmt->da;
851 event.rx_action.sa = mgmt->sa;
852 event.rx_action.bssid = mgmt->bssid;
853 event.rx_action.category = mgmt->u.action.category;
854 event.rx_action.data = &mgmt->u.action.category + 1;
855 event.rx_action.len = frame + len - event.rx_action.data;
856 wpa_supplicant_event(drv->ctx, EVENT_RX_ACTION, &event);
857 } else {
858 event.rx_mgmt.frame = frame;
859 event.rx_mgmt.frame_len = len;
860 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
861 }
58f6fbe0
JM		 862}
863
864
865static void mlme_event_action_tx_status(struct wpa_driver_nl80211_data *drv,
866 struct nlattr *cookie, const u8 *frame,
867 size_t len, struct nlattr *ack)
868{
869 union wpa_event_data event;
870 const struct ieee80211_hdr *hdr;
871 u16 fc;
872 u64 cookie_val;
873
874 if (!cookie)
875 return;
876
877 cookie_val = nla_get_u64(cookie);
4796272f
JM		 878 wpa_printf(MSG_DEBUG, "nl80211: Action TX status: cookie=0%llx%s "
879 "(ack=%d)",
58f6fbe0
JM		 880 (long long unsigned int) cookie_val,
881 cookie_val == drv->send_action_cookie ?
4796272f 882 " (match)" : " (unknown)", ack != NULL);
58f6fbe0
JM		 883 if (cookie_val != drv->send_action_cookie)
884 return;
885
886 hdr = (const struct ieee80211_hdr *) frame;
887 fc = le_to_host16(hdr->frame_control);
888
889 os_memset(&event, 0, sizeof(event));
890 event.tx_status.type = WLAN_FC_GET_TYPE(fc);
891 event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
892 event.tx_status.dst = hdr->addr1;
893 event.tx_status.data = frame;
894 event.tx_status.data_len = len;
895 event.tx_status.ack = ack != NULL;
896 wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event);
897}
898
899
0544b242
JM		 900static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv,
901 enum wpa_event_type type,
902 const u8 *frame, size_t len)
903{
904 const struct ieee80211_mgmt *mgmt;
905 union wpa_event_data event;
906 const u8 *bssid = NULL;
907 u16 reason_code = 0;
908
cb30b297
PS		 909 mgmt = (const struct ieee80211_mgmt *) frame;
910 if (len >= 24) {
911 bssid = mgmt->bssid;
912
913 if (drv->associated != 0 &&
914 os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 &&
915 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) {
916 /*
917 * We have presumably received this deauth as a
918 * response to a clear_state_mismatch() outgoing
919 * deauth. Don't let it take us offline!
920 */
921 wpa_printf(MSG_DEBUG, "nl80211: Deauth received "
922 "from Unknown BSSID " MACSTR " -- ignoring",
923 MAC2STR(bssid));
924 return;
925 }
926 }
927
0544b242
JM		 928 drv->associated = 0;
929 os_memset(&event, 0, sizeof(event));
930
0544b242
JM		 931 /* Note: Same offset for Reason Code in both frame subtypes */
932 if (len >= 24 + sizeof(mgmt->u.deauth))
933 reason_code = le_to_host16(mgmt->u.deauth.reason_code);
934
935 if (type == EVENT_DISASSOC) {
936 event.disassoc_info.addr = bssid;
937 event.disassoc_info.reason_code = reason_code;
046b26a2
JM		 938 if (frame + len > mgmt->u.disassoc.variable) {
939 event.disassoc_info.ie = mgmt->u.disassoc.variable;
940 event.disassoc_info.ie_len = frame + len -
941 mgmt->u.disassoc.variable;
942 }
0544b242
JM		 943 } else {
944 event.deauth_info.addr = bssid;
945 event.deauth_info.reason_code = reason_code;
046b26a2
JM		 946 if (frame + len > mgmt->u.deauth.variable) {
947 event.deauth_info.ie = mgmt->u.deauth.variable;
948 event.deauth_info.ie_len = frame + len -
949 mgmt->u.deauth.variable;
950 }
0544b242
JM		 951 }
952
953 wpa_supplicant_event(drv->ctx, type, &event);
954}
955
956
7d878ca7
JM		 957static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv,
958 enum wpa_event_type type,
959 const u8 *frame, size_t len)
960{
961 const struct ieee80211_mgmt *mgmt;
962 union wpa_event_data event;
963 u16 reason_code = 0;
964
965 if (len < 24)
966 return;
967
968 mgmt = (const struct ieee80211_mgmt *) frame;
969
970 os_memset(&event, 0, sizeof(event));
971 /* Note: Same offset for Reason Code in both frame subtypes */
972 if (len >= 24 + sizeof(mgmt->u.deauth))
973 reason_code = le_to_host16(mgmt->u.deauth.reason_code);
974
975 if (type == EVENT_UNPROT_DISASSOC) {
976 event.unprot_disassoc.sa = mgmt->sa;
977 event.unprot_disassoc.da = mgmt->da;
978 event.unprot_disassoc.reason_code = reason_code;
979 } else {
980 event.unprot_deauth.sa = mgmt->sa;
981 event.unprot_deauth.da = mgmt->da;
982 event.unprot_deauth.reason_code = reason_code;
983 }
984
985 wpa_supplicant_event(drv->ctx, type, &event);
986}
987
988
c2a04078 989static void mlme_event(struct wpa_driver_nl80211_data *drv,
da1fb17c 990 enum nl80211_commands cmd, struct nlattr *frame,
58f6fbe0
JM		 991 struct nlattr *addr, struct nlattr *timed_out,
992 struct nlattr *freq, struct nlattr *ack,
993 struct nlattr *cookie)
c2a04078 994{
da1fb17c
JM		 995 if (timed_out && addr) {
996 mlme_timeout_event(drv, cmd, addr);
997 return;
998 }
999
c2a04078
JM		 1000 if (frame == NULL) {
1001 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d without frame "
1002 "data", cmd);
1003 return;
1004 }
1005
1006 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d", cmd);
1007 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame",
1008 nla_data(frame), nla_len(frame));
1009
1010 switch (cmd) {
1011 case NL80211_CMD_AUTHENTICATE:
1012 mlme_event_auth(drv, nla_data(frame), nla_len(frame));
1013 break;
1014 case NL80211_CMD_ASSOCIATE:
1015 mlme_event_assoc(drv, nla_data(frame), nla_len(frame));
1016 break;
1017 case NL80211_CMD_DEAUTHENTICATE:
0544b242
JM		 1018 mlme_event_deauth_disassoc(drv, EVENT_DEAUTH,
1019 nla_data(frame), nla_len(frame));
c2a04078
JM		 1020 break;
1021 case NL80211_CMD_DISASSOCIATE:
0544b242
JM		 1022 mlme_event_deauth_disassoc(drv, EVENT_DISASSOC,
1023 nla_data(frame), nla_len(frame));
c2a04078 1024 break;
bd94971e 1025 case NL80211_CMD_FRAME:
5582a5d1 1026 mlme_event_mgmt(drv, freq, nla_data(frame), nla_len(frame));
58f6fbe0 1027 break;
bd94971e 1028 case NL80211_CMD_FRAME_TX_STATUS:
58f6fbe0
JM		 1029 mlme_event_action_tx_status(drv, cookie, nla_data(frame),
1030 nla_len(frame), ack);
1031 break;
7d878ca7
JM		 1032 case NL80211_CMD_UNPROT_DEAUTHENTICATE:
1033 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH,
1034 nla_data(frame), nla_len(frame));
1035 break;
1036 case NL80211_CMD_UNPROT_DISASSOCIATE:
1037 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC,
1038 nla_data(frame), nla_len(frame));
1039 break;
c2a04078
JM		 1040 default:
1041 break;
1042 }
1043}
1044
1045
35583f3f
JM		 1046static void mlme_event_michael_mic_failure(struct wpa_driver_nl80211_data *drv,
1047 struct nlattr *tb[])
1048{
1049 union wpa_event_data data;
1050
1051 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure");
1052 os_memset(&data, 0, sizeof(data));
1053 if (tb[NL80211_ATTR_MAC]) {
1054 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address",
1055 nla_data(tb[NL80211_ATTR_MAC]),
1056 nla_len(tb[NL80211_ATTR_MAC]));
ad1e68e6 1057 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]);
35583f3f
JM		 1058 }
1059 if (tb[NL80211_ATTR_KEY_SEQ]) {
1060 wpa_hexdump(MSG_DEBUG, "nl80211: TSC",
1061 nla_data(tb[NL80211_ATTR_KEY_SEQ]),
1062 nla_len(tb[NL80211_ATTR_KEY_SEQ]));
1063 }
1064 if (tb[NL80211_ATTR_KEY_TYPE]) {
1065 enum nl80211_key_type key_type =
1066 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]);
1067 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type);
1068 if (key_type == NL80211_KEYTYPE_PAIRWISE)
1069 data.michael_mic_failure.unicast = 1;
1070 } else
1071 data.michael_mic_failure.unicast = 1;
1072
1073 if (tb[NL80211_ATTR_KEY_IDX]) {
1074 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]);
1075 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id);
1076 }
1077
1078 wpa_supplicant_event(drv->ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
1079}
1080
1081
5cc4d64b
JM		 1082static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv,
1083 struct nlattr *tb[])
1084{
1085 if (tb[NL80211_ATTR_MAC] == NULL) {
1086 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined "
1087 "event");
1088 return;
1089 }
1090 os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
1091 drv->associated = 1;
1092 wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined",
1093 MAC2STR(drv->bssid));
1094
1095 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL);
1096}
1097
1098
55777702
JM		 1099static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv,
1100 int cancel_event, struct nlattr *tb[])
1101{
1102 unsigned int freq, chan_type, duration;
1103 union wpa_event_data data;
1104 u64 cookie;
1105
1106 if (tb[NL80211_ATTR_WIPHY_FREQ])
1107 freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]);
1108 else
1109 freq = 0;
1110
1111 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
1112 chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1113 else
1114 chan_type = 0;
1115
1116 if (tb[NL80211_ATTR_DURATION])
1117 duration = nla_get_u32(tb[NL80211_ATTR_DURATION]);
1118 else
1119 duration = 0;
1120
1121 if (tb[NL80211_ATTR_COOKIE])
1122 cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
1123 else
1124 cookie = 0;
1125
1126 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d "
1127 "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))",
1128 cancel_event, freq, chan_type, duration,
1129 (long long unsigned int) cookie,
1130 cookie == drv->remain_on_chan_cookie ? "match" : "unknown");
1131
1132 if (cookie != drv->remain_on_chan_cookie)
1133 return; /* not for us */
1134
531f0331
JB		 1135 if (cancel_event)
1136 drv->pending_remain_on_chan = 0;
55777702
JM		 1137
1138 os_memset(&data, 0, sizeof(data));
1139 data.remain_on_channel.freq = freq;
1140 data.remain_on_channel.duration = duration;
1141 wpa_supplicant_event(drv->ctx, cancel_event ?
1142 EVENT_CANCEL_REMAIN_ON_CHANNEL :
1143 EVENT_REMAIN_ON_CHANNEL, &data);
1144}
1145
1146
8d923a4a
JM		 1147static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted,
1148 struct nlattr *tb[])
1149{
1150 union wpa_event_data event;
1151 struct nlattr *nl;
1152 int rem;
1153 struct scan_info *info;
1154#define MAX_REPORT_FREQS 50
1155 int freqs[MAX_REPORT_FREQS];
1156 int num_freqs = 0;
1157
1158 os_memset(&event, 0, sizeof(event));
1159 info = &event.scan_info;
1160 info->aborted = aborted;
1161
1162 if (tb[NL80211_ATTR_SCAN_SSIDS]) {
1163 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) {
1164 struct wpa_driver_scan_ssid *s =
1165 &info->ssids[info->num_ssids];
1166 s->ssid = nla_data(nl);
1167 s->ssid_len = nla_len(nl);
1168 info->num_ssids++;
1169 if (info->num_ssids == WPAS_MAX_SCAN_SSIDS)
1170 break;
1171 }
1172 }
1173 if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) {
1174 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem)
1175 {
1176 freqs[num_freqs] = nla_get_u32(nl);
1177 num_freqs++;
1178 if (num_freqs == MAX_REPORT_FREQS - 1)
1179 break;
1180 }
1181 info->freqs = freqs;
1182 info->num_freqs = num_freqs;
1183 }
1184 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event);
1185}
1186
1187
60a972a6
JM		 1188static int get_link_signal(struct nl_msg *msg, void *arg)
1189{
1190 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1191 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1192 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1];
1193 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = {
1194 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 },
1195 };
7ee35bf3
PS		 1196 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1];
1197 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = {
1198 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 },
1199 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 },
1200 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG },
1201 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG },
1202 };
1c5c7273 1203 struct wpa_signal_info *sig_change = arg;
60a972a6
JM		 1204
1205 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1206 genlmsg_attrlen(gnlh, 0), NULL);
1207 if (!tb[NL80211_ATTR_STA_INFO] ||
1208 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX,
1209 tb[NL80211_ATTR_STA_INFO], policy))
1210 return NL_SKIP;
1211 if (!sinfo[NL80211_STA_INFO_SIGNAL])
1212 return NL_SKIP;
1213
7ee35bf3
PS		 1214 sig_change->current_signal =
1215 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]);
1216
1217 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) {
1218 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX,
1219 sinfo[NL80211_STA_INFO_TX_BITRATE],
1220 rate_policy)) {
1221 sig_change->current_txrate = 0;
1222 } else {
1223 if (rinfo[NL80211_RATE_INFO_BITRATE]) {
1224 sig_change->current_txrate =
1225 nla_get_u16(rinfo[
1226 NL80211_RATE_INFO_BITRATE]) * 100;
1227 }
1228 }
1229 }
1230
60a972a6
JM		 1231 return NL_SKIP;
1232}
1233
1234
1235static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv,
1c5c7273 1236 struct wpa_signal_info *sig)
60a972a6
JM		 1237{
1238 struct nl_msg *msg;
1239
7ee35bf3
PS		 1240 sig->current_signal = -9999;
1241 sig->current_txrate = 0;
60a972a6
JM		 1242
1243 msg = nlmsg_alloc();
1244 if (!msg)
1245 return -ENOMEM;
1246
9fb04070 1247 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION);
60a972a6
JM		 1248
1249 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1250 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
1251
1252 return send_and_recv_msgs(drv, msg, get_link_signal, sig);
1253 nla_put_failure:
1254 return -ENOBUFS;
1255}
1256
1257
7ee35bf3
PS		 1258static int get_link_noise(struct nl_msg *msg, void *arg)
1259{
1260 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1261 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1262 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
1263 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
1264 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
1265 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
1266 };
1c5c7273 1267 struct wpa_signal_info *sig_change = arg;
7ee35bf3
PS		 1268
1269 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1270 genlmsg_attrlen(gnlh, 0), NULL);
1271
1272 if (!tb[NL80211_ATTR_SURVEY_INFO]) {
1273 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!");
1274 return NL_SKIP;
1275 }
1276
1277 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
1278 tb[NL80211_ATTR_SURVEY_INFO],
1279 survey_policy)) {
1280 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested "
1281 "attributes!");
1282 return NL_SKIP;
1283 }
1284
1285 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY])
1286 return NL_SKIP;
1287
1288 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) !=
1289 sig_change->frequency)
1290 return NL_SKIP;
1291
1292 if (!sinfo[NL80211_SURVEY_INFO_NOISE])
1293 return NL_SKIP;
1294
1295 sig_change->current_noise =
1296 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
1297
1298 return NL_SKIP;
1299}
1300
1301
1302static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv,
1c5c7273 1303 struct wpa_signal_info *sig_change)
7ee35bf3
PS		 1304{
1305 struct nl_msg *msg;
1306
1307 sig_change->current_noise = 9999;
1308 sig_change->frequency = drv->assoc_freq;
1309
1310 msg = nlmsg_alloc();
1311 if (!msg)
1312 return -ENOMEM;
1313
9fb04070 1314 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SURVEY);
7ee35bf3
PS		 1315
1316 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1317
1318 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change);
1319 nla_put_failure:
1320 return -ENOBUFS;
1321}
1322
1323
93910401
JM		 1324static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv,
1325 struct nlattr *tb[])
1326{
1327 static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
1328 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
1329 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 },
1330 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
0d7e5a3a 1331 [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 },
93910401
JM		 1332 };
1333 struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1];
1334 enum nl80211_cqm_rssi_threshold_event event;
b625473c 1335 union wpa_event_data ed;
1c5c7273 1336 struct wpa_signal_info sig;
7ee35bf3 1337 int res;
93910401
JM		 1338
1339 if (tb[NL80211_ATTR_CQM] == NULL ||
1340 nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM],
1341 cqm_policy)) {
1342 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event");
1343 return;
1344 }
1345
0d7e5a3a
JB		 1346 os_memset(&ed, 0, sizeof(ed));
1347
1348 if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) {
1349 if (!tb[NL80211_ATTR_MAC])
1350 return;
1351 os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]),
1352 ETH_ALEN);
1353 wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed);
1354 return;
1355 }
1356
93910401
JM		 1357 if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL)
1358 return;
1359 event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]);
b625473c 1360
93910401
JM		 1361 if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) {
1362 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
1363 "event: RSSI high");
b625473c 1364 ed.signal_change.above_threshold = 1;
93910401
JM		 1365 } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) {
1366 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
1367 "event: RSSI low");
b625473c
JM		 1368 ed.signal_change.above_threshold = 0;
1369 } else
1370 return;
1371
60a972a6
JM		 1372 res = nl80211_get_link_signal(drv, &sig);
1373 if (res == 0) {
7ee35bf3
PS		 1374 ed.signal_change.current_signal = sig.current_signal;
1375 ed.signal_change.current_txrate = sig.current_txrate;
1376 wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d",
1377 sig.current_signal, sig.current_txrate);
1378 }
1379
1380 res = nl80211_get_link_noise(drv, &sig);
1381 if (res == 0) {
1382 ed.signal_change.current_noise = sig.current_noise;
1383 wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm",
1384 sig.current_noise);
60a972a6
JM		 1385 }
1386
b625473c 1387 wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed);
93910401
JM		 1388}
1389
1390
18d2ba08
JM		 1391static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv,
1392 struct nlattr **tb)
1393{
1394 u8 *addr;
1395 union wpa_event_data data;
1396
1397 if (tb[NL80211_ATTR_MAC] == NULL)
1398 return;
1399 addr = nla_data(tb[NL80211_ATTR_MAC]);
1400 wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr));
5f310a9e 1401
86957e62 1402 if (is_ap_interface(drv->nlmode) && drv->no_monitor_iface_capab) {
5f310a9e
JM		 1403 u8 *ies = NULL;
1404 size_t ies_len = 0;
1405 if (tb[NL80211_ATTR_IE]) {
1406 ies = nla_data(tb[NL80211_ATTR_IE]);
1407 ies_len = nla_len(tb[NL80211_ATTR_IE]);
1408 }
1409 wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len);
1410 drv_event_assoc(drv->ctx, addr, ies, ies_len, 0);
1411 return;
1412 }
1413
18d2ba08
JM		 1414 if (drv->nlmode != NL80211_IFTYPE_ADHOC)
1415 return;
1416
1417 os_memset(&data, 0, sizeof(data));
1418 os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN);
1419 wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data);
1420}
1421
1422
ef985058
JM		 1423static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv,
1424 struct nlattr **tb)
1425{
1426 u8 *addr;
1427 union wpa_event_data data;
1428
1429 if (tb[NL80211_ATTR_MAC] == NULL)
1430 return;
1431 addr = nla_data(tb[NL80211_ATTR_MAC]);
1432 wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR,
1433 MAC2STR(addr));
5f310a9e 1434
86957e62 1435 if (is_ap_interface(drv->nlmode) && drv->no_monitor_iface_capab) {
5f310a9e
JM		 1436 drv_event_disassoc(drv->ctx, addr);
1437 return;
1438 }
1439
ef985058
JM		 1440 if (drv->nlmode != NL80211_IFTYPE_ADHOC)
1441 return;
1442
1443 os_memset(&data, 0, sizeof(data));
1444 os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN);
1445 wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data);
1446}
1447
1448
b14a210c
JB		 1449static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv,
1450 struct nlattr **tb)
1451{
1452 struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA];
1453 static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = {
1454 [NL80211_REKEY_DATA_KEK] = {
1455 .minlen = NL80211_KEK_LEN,
1456 .maxlen = NL80211_KEK_LEN,
1457 },
1458 [NL80211_REKEY_DATA_KCK] = {
1459 .minlen = NL80211_KCK_LEN,
1460 .maxlen = NL80211_KCK_LEN,
1461 },
1462 [NL80211_REKEY_DATA_REPLAY_CTR] = {
1463 .minlen = NL80211_REPLAY_CTR_LEN,
1464 .maxlen = NL80211_REPLAY_CTR_LEN,
1465 },
1466 };
1467 union wpa_event_data data;
1468
1469 if (!tb[NL80211_ATTR_MAC])
1470 return;
1471 if (!tb[NL80211_ATTR_REKEY_DATA])
1472 return;
1473 if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA,
1474 tb[NL80211_ATTR_REKEY_DATA], rekey_policy))
1475 return;
1476 if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR])
1477 return;
1478
1479 os_memset(&data, 0, sizeof(data));
1480 data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]);
1481 wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR,
1482 MAC2STR(data.driver_gtk_rekey.bssid));
1483 data.driver_gtk_rekey.replay_ctr =
1484 nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]);
1485 wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter",
1486 data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN);
1487 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data);
1488}
1489
1490
c36d5242
JM		 1491static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv,
1492 struct nlattr **tb)
1493{
1494 struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE];
1495 static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = {
1496 [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 },
1497 [NL80211_PMKSA_CANDIDATE_BSSID] = {
1498 .minlen = ETH_ALEN,
1499 .maxlen = ETH_ALEN,
1500 },
1501 [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG },
1502 };
1503 union wpa_event_data data;
1504
1505 if (!tb[NL80211_ATTR_PMKSA_CANDIDATE])
1506 return;
1507 if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE,
1508 tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy))
1509 return;
1510 if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] ||
1511 !cand[NL80211_PMKSA_CANDIDATE_BSSID])
1512 return;
1513
1514 os_memset(&data, 0, sizeof(data));
1515 os_memcpy(data.pmkid_candidate.bssid,
1516 nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN);
1517 data.pmkid_candidate.index =
1518 nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]);
1519 data.pmkid_candidate.preauth =
1520 cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL;
1521 wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data);
1522}
1523
1524
97865538
JM		 1525static int process_event(struct nl_msg *msg, void *arg)
1526{
1527 struct wpa_driver_nl80211_data *drv = arg;
1528 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1529 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1530
1531 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1532 genlmsg_attrlen(gnlh, 0), NULL);
1533
1534 if (tb[NL80211_ATTR_IFINDEX]) {
1535 int ifindex = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
97cfcf64 1536 if (ifindex != drv->ifindex && !have_ifidx(drv, ifindex)) {
97865538
JM		 1537 wpa_printf(MSG_DEBUG, "nl80211: Ignored event (cmd=%d)"
1538 " for foreign interface (ifindex %d)",
1539 gnlh->cmd, ifindex);
1540 return NL_SKIP;
1541 }
1542 }
1543
b1f625e0 1544 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED &&
ad1e68e6
JM		 1545 (gnlh->cmd == NL80211_CMD_NEW_SCAN_RESULTS ||
1546 gnlh->cmd == NL80211_CMD_SCAN_ABORTED)) {
a2e40bb6 1547 wpa_driver_nl80211_set_mode(&drv->first_bss,
b1f625e0
EP		 1548 drv->ap_scan_as_station);
1549 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
ad1e68e6
JM		 1550 }
1551
97865538 1552 switch (gnlh->cmd) {
d942a79e
JM		 1553 case NL80211_CMD_TRIGGER_SCAN:
1554 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger");
1555 break;
d21c63b9
LC		 1556 case NL80211_CMD_START_SCHED_SCAN:
1557 wpa_printf(MSG_DEBUG, "nl80211: Sched scan started");
1558 break;
1559 case NL80211_CMD_SCHED_SCAN_STOPPED:
1560 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stopped");
1561 wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL);
1562 break;
97865538
JM		 1563 case NL80211_CMD_NEW_SCAN_RESULTS:
1564 wpa_printf(MSG_DEBUG, "nl80211: New scan results available");
1565 drv->scan_complete_events = 1;
1566 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
1567 drv->ctx);
8d923a4a 1568 send_scan_event(drv, 0, tb);
97865538 1569 break;
d21c63b9
LC		 1570 case NL80211_CMD_SCHED_SCAN_RESULTS:
1571 wpa_printf(MSG_DEBUG,
1572 "nl80211: New sched scan results available");
1573 send_scan_event(drv, 0, tb);
1574 break;
97865538
JM		 1575 case NL80211_CMD_SCAN_ABORTED:
1576 wpa_printf(MSG_DEBUG, "nl80211: Scan aborted");
1577 /*
1578 * Need to indicate that scan results are available in order
1579 * not to make wpa_supplicant stop its scanning.
1580 */
1581 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
1582 drv->ctx);
8d923a4a 1583 send_scan_event(drv, 1, tb);
97865538 1584 break;
c2a04078
JM		 1585 case NL80211_CMD_AUTHENTICATE:
1586 case NL80211_CMD_ASSOCIATE:
1587 case NL80211_CMD_DEAUTHENTICATE:
1588 case NL80211_CMD_DISASSOCIATE:
bd94971e
JB		 1589 case NL80211_CMD_FRAME:
1590 case NL80211_CMD_FRAME_TX_STATUS:
7d878ca7
JM		 1591 case NL80211_CMD_UNPROT_DEAUTHENTICATE:
1592 case NL80211_CMD_UNPROT_DISASSOCIATE:
da1fb17c 1593 mlme_event(drv, gnlh->cmd, tb[NL80211_ATTR_FRAME],
58f6fbe0
JM		 1594 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT],
1595 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK],
1596 tb[NL80211_ATTR_COOKIE]);
c2a04078 1597 break;
da72a1c1
ZY		 1598 case NL80211_CMD_CONNECT:
1599 case NL80211_CMD_ROAM:
1600 mlme_event_connect(drv, gnlh->cmd,
1601 tb[NL80211_ATTR_STATUS_CODE],
1602 tb[NL80211_ATTR_MAC],
1603 tb[NL80211_ATTR_REQ_IE],
1604 tb[NL80211_ATTR_RESP_IE]);
1605 break;
1606 case NL80211_CMD_DISCONNECT:
20f5a4c2
JM		 1607 mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE],
1608 tb[NL80211_ATTR_MAC]);
da72a1c1 1609 break;
35583f3f
JM		 1610 case NL80211_CMD_MICHAEL_MIC_FAILURE:
1611 mlme_event_michael_mic_failure(drv, tb);
1612 break;
5cc4d64b
JM		 1613 case NL80211_CMD_JOIN_IBSS:
1614 mlme_event_join_ibss(drv, tb);
1615 break;
55777702
JM		 1616 case NL80211_CMD_REMAIN_ON_CHANNEL:
1617 mlme_event_remain_on_channel(drv, 0, tb);
1618 break;
1619 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL:
1620 mlme_event_remain_on_channel(drv, 1, tb);
1621 break;
93910401
JM		 1622 case NL80211_CMD_NOTIFY_CQM:
1623 nl80211_cqm_event(drv, tb);
1624 break;
33c5deb8
JM		 1625 case NL80211_CMD_REG_CHANGE:
1626 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change");
1627 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED,
1628 NULL);
1629 break;
1630 case NL80211_CMD_REG_BEACON_HINT:
1631 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint");
1632 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED,
1633 NULL);
1634 break;
18d2ba08
JM		 1635 case NL80211_CMD_NEW_STATION:
1636 nl80211_new_station_event(drv, tb);
1637 break;
ef985058
JM		 1638 case NL80211_CMD_DEL_STATION:
1639 nl80211_del_station_event(drv, tb);
1640 break;
b14a210c
JB		 1641 case NL80211_CMD_SET_REKEY_OFFLOAD:
1642 nl80211_rekey_offload_event(drv, tb);
1643 break;
c36d5242
JM		 1644 case NL80211_CMD_PMKSA_CANDIDATE:
1645 nl80211_pmksa_candidate_event(drv, tb);
1646 break;
97865538 1647 default:
c2a04078
JM		 1648 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event "
1649 "(cmd=%d)", gnlh->cmd);
97865538
JM		 1650 break;
1651 }
1652
1653 return NL_SKIP;
1654}
1655
1656
1657static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx,
5582a5d1 1658 void *handle)
97865538
JM		 1659{
1660 struct nl_cb *cb;
1661 struct wpa_driver_nl80211_data *drv = eloop_ctx;
1662
1663 wpa_printf(MSG_DEBUG, "nl80211: Event message available");
1664
1665 cb = nl_cb_clone(drv->nl_cb);
1666 if (!cb)
1667 return;
1668 nl_cb_set(cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL);
1669 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, process_event, drv);
5582a5d1 1670 nl_recvmsgs(handle, cb);
97865538
JM		 1671 nl_cb_put(cb);
1672}
1673
1674
6d158490
LR		 1675/**
1676 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain
1677 * @priv: driver_nl80211 private data
1678 * @alpha2_arg: country to which to switch to
1679 * Returns: 0 on success, -1 on failure
1680 *
1681 * This asks nl80211 to set the regulatory domain for given
1682 * country ISO / IEC alpha2.
1683 */
1684static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg)
1685{
a2e40bb6
FF		 1686 struct i802_bss *bss = priv;
1687 struct wpa_driver_nl80211_data *drv = bss->drv;
6d158490
LR		 1688 char alpha2[3];
1689 struct nl_msg *msg;
1690
1691 msg = nlmsg_alloc();
1692 if (!msg)
e785c2ba 1693 return -ENOMEM;
6d158490
LR		 1694
1695 alpha2[0] = alpha2_arg[0];
1696 alpha2[1] = alpha2_arg[1];
1697 alpha2[2] = '\0';
1698
9fb04070 1699 nl80211_cmd(drv, msg, 0, NL80211_CMD_REQ_SET_REG);
6d158490
LR		 1700
1701 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2);
1702 if (send_and_recv_msgs(drv, msg, NULL, NULL))
1703 return -EINVAL;
1704 return 0;
1705nla_put_failure:
1706 return -EINVAL;
1707}
1708
1709
80bc75f1 1710struct wiphy_info_data {
e8b5e24e
JB		 1711 struct wpa_driver_capa *capa;
1712
1713 unsigned int error:1;
80bc75f1
JM		 1714};
1715
1716
1717static int wiphy_info_handler(struct nl_msg *msg, void *arg)
1718{
1719 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1720 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1721 struct wiphy_info_data *info = arg;
9f51b113 1722 int p2p_go_supported = 0, p2p_client_supported = 0;
e8b5e24e
JB		 1723 int p2p_concurrent = 0;
1724 int auth_supported = 0, connect_supported = 0;
1725 struct wpa_driver_capa *capa = info->capa;
7626850d
JB		 1726 static struct nla_policy
1727 iface_combination_policy[NUM_NL80211_IFACE_COMB] = {
1728 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED },
1729 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 },
1730 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG },
1731 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 },
1732 },
1733 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = {
1734 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED },
1735 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 },
1736 };
80bc75f1
JM		 1737
1738 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1739 genlmsg_attrlen(gnlh, 0), NULL);
1740
1741 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS])
e8b5e24e 1742 capa->max_scan_ssids =
80bc75f1
JM		 1743 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]);
1744
d21c63b9 1745 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS])
e8b5e24e 1746 capa->max_sched_scan_ssids =
d21c63b9
LC		 1747 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]);
1748
bd525934 1749 if (tb[NL80211_ATTR_MAX_MATCH_SETS])
e8b5e24e 1750 capa->max_match_sets =
bd525934
LC		 1751 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]);
1752
1581b38b
JM		 1753 if (tb[NL80211_ATTR_SUPPORTED_IFTYPES]) {
1754 struct nlattr *nl_mode;
1755 int i;
1756 nla_for_each_nested(nl_mode,
1757 tb[NL80211_ATTR_SUPPORTED_IFTYPES], i) {
58708b3b 1758 switch (nla_type(nl_mode)) {
9f51b113 1759 case NL80211_IFTYPE_AP:
e8b5e24e 1760 capa->flags |= WPA_DRIVER_FLAGS_AP;
1581b38b 1761 break;
9f51b113
JB		 1762 case NL80211_IFTYPE_P2P_GO:
1763 p2p_go_supported = 1;
1764 break;
1765 case NL80211_IFTYPE_P2P_CLIENT:
1766 p2p_client_supported = 1;
1767 break;
1581b38b
JM		 1768 }
1769 }
1770 }
1771
7626850d
JB		 1772 if (tb[NL80211_ATTR_INTERFACE_COMBINATIONS]) {
1773 struct nlattr *nl_combi;
1774 int rem_combi;
1775
1776 nla_for_each_nested(nl_combi,
1777 tb[NL80211_ATTR_INTERFACE_COMBINATIONS],
1778 rem_combi) {
1779 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB];
1780 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT];
1781 struct nlattr *nl_limit, *nl_mode;
1782 int err, rem_limit, rem_mode;
1783 int combination_has_p2p = 0, combination_has_mgd = 0;
1784
1785 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB,
1786 nl_combi,
1787 iface_combination_policy);
1788 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] ||
1789 !tb_comb[NL80211_IFACE_COMB_MAXNUM] ||
1790 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS])
1791 goto broken_combination;
1792
1793 nla_for_each_nested(nl_limit,
1794 tb_comb[NL80211_IFACE_COMB_LIMITS],
1795 rem_limit) {
1796 err = nla_parse_nested(tb_limit,
1797 MAX_NL80211_IFACE_LIMIT,
1798 nl_limit,
1799 iface_limit_policy);
1800 if (err ||
1801 !tb_limit[NL80211_IFACE_LIMIT_TYPES])
1802 goto broken_combination;
1803
1804 nla_for_each_nested(
1805 nl_mode,
1806 tb_limit[NL80211_IFACE_LIMIT_TYPES],
1807 rem_mode) {
1808 int ift = nla_type(nl_mode);
1809 if (ift == NL80211_IFTYPE_P2P_GO ||
1810 ift == NL80211_IFTYPE_P2P_CLIENT)
1811 combination_has_p2p = 1;
1812 if (ift == NL80211_IFTYPE_STATION)
1813 combination_has_mgd = 1;
1814 }
1815 if (combination_has_p2p && combination_has_mgd)
1816 break;
1817 }
1818
1819 if (combination_has_p2p && combination_has_mgd) {
e8b5e24e 1820 p2p_concurrent = 1;
7626850d
JB		 1821 break;
1822 }
1823
1824broken_combination:
1825 ;
1826 }
1827 }
1828
93d11400
ZY		 1829 if (tb[NL80211_ATTR_SUPPORTED_COMMANDS]) {
1830 struct nlattr *nl_cmd;
1831 int i;
1832
1833 nla_for_each_nested(nl_cmd,
1834 tb[NL80211_ATTR_SUPPORTED_COMMANDS], i) {
e8b5e24e
JB		 1835 switch (nla_get_u32(nl_cmd)) {
1836 case NL80211_CMD_AUTHENTICATE:
1837 auth_supported = 1;
1838 break;
1839 case NL80211_CMD_CONNECT:
1840 connect_supported = 1;
1841 break;
1842 case NL80211_CMD_START_SCHED_SCAN:
1843 capa->sched_scan_supported = 1;
1844 break;
1845 }
93d11400
ZY		 1846 }
1847 }
1848
e8b5e24e
JB		 1849 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) {
1850 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based "
1851 "off-channel TX");
1852 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX;
1853 }
1854
1855 if (tb[NL80211_ATTR_ROAM_SUPPORT]) {
1856 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming");
1857 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION;
1858 }
5dfca53f 1859
e8b5e24e
JB		 1860 /* default to 5000 since early versions of mac80211 don't set it */
1861 capa->max_remain_on_chan = 5000;
004ba773 1862
89e07afb 1863 if (tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION])
e8b5e24e 1864 capa->max_remain_on_chan =
89e07afb
JB		 1865 nla_get_u32(tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]);
1866
e8b5e24e
JB		 1867 if (auth_supported)
1868 capa->flags |= WPA_DRIVER_FLAGS_SME;
1869 else if (!connect_supported) {
1870 wpa_printf(MSG_INFO, "nl80211: Driver does not support "
1871 "authentication/association or connect commands");
1872 info->error = 1;
1873 }
1874
1875 if (p2p_go_supported && p2p_client_supported)
1876 capa->flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE;
1877 if (p2p_concurrent) {
1878 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
1879 "interface (driver advertised support)");
1880 capa->flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
1881 capa->flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
1882 }
1883
80bc75f1
JM		 1884 return NL_SKIP;
1885}
1886
1887
1888static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv,
1889 struct wiphy_info_data *info)
1890{
1891 struct nl_msg *msg;
1892
1893 os_memset(info, 0, sizeof(*info));
e8b5e24e 1894 info->capa = &drv->capa;
89e07afb 1895
80bc75f1
JM		 1896 msg = nlmsg_alloc();
1897 if (!msg)
1898 return -1;
1899
9fb04070 1900 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY);
80bc75f1 1901
a2e40bb6 1902 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->first_bss.ifindex);
80bc75f1
JM		 1903
1904 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info) == 0)
1905 return 0;
1906 msg = NULL;
1907nla_put_failure:
1908 nlmsg_free(msg);
1909 return -1;
1910}
1911
1912
93d11400 1913static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
80bc75f1
JM		 1914{
1915 struct wiphy_info_data info;
1916 if (wpa_driver_nl80211_get_info(drv, &info))
93d11400 1917 return -1;
e8b5e24e
JB		 1918
1919 if (info.error)
1920 return -1;
1921
80bc75f1 1922 drv->has_capability = 1;
1b2a72e8
JM		 1923 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */
1924 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
1925 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
1926 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
1927 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
1928 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 |
1929 WPA_DRIVER_CAPA_ENC_WEP104 |
1930 WPA_DRIVER_CAPA_ENC_TKIP |
1931 WPA_DRIVER_CAPA_ENC_CCMP;
291b6068
JM		 1932 drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
1933 WPA_DRIVER_AUTH_SHARED |
1934 WPA_DRIVER_AUTH_LEAP;
1b2a72e8 1935
871f4dd0 1936 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES;
0194fedb 1937 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE;
2fee890a 1938 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
4dc03726 1939 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS;
0194fedb 1940
93d11400 1941 return 0;
80bc75f1
JM		 1942}
1943
1944
ba2d0d7d 1945static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv)
3f5285e8 1946{
9fff9fdc 1947 int ret;
3f5285e8 1948
9fff9fdc 1949 /* Initialize generic netlink and nl80211 */
3f5285e8
JM		 1950
1951 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
1952 if (drv->nl_cb == NULL) {
1953 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
1954 "callbacks");
1955 goto err1;
1956 }
1957
a65a9aed 1958 drv->nl_handle = nl80211_handle_alloc(drv->nl_cb);
3f5285e8
JM		 1959 if (drv->nl_handle == NULL) {
1960 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
1961 "callbacks");
1962 goto err2;
1963 }
1964
a65a9aed 1965 drv->nl_handle_event = nl80211_handle_alloc(drv->nl_cb);
335ce76b
JM		 1966 if (drv->nl_handle_event == NULL) {
1967 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
1968 "callbacks (event)");
1969 goto err2b;
1970 }
1971
3f5285e8
JM		 1972 if (genl_connect(drv->nl_handle)) {
1973 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
1974 "netlink");
1975 goto err3;
1976 }
1977
335ce76b
JM		 1978 if (genl_connect(drv->nl_handle_event)) {
1979 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
1980 "netlink (event)");
1981 goto err3;
1982 }
1983
9fff9fdc
JM		 1984 if (genl_ctrl_alloc_cache(drv->nl_handle, &drv->nl_cache) < 0) {
1985 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1986 "netlink cache");
1987 goto err3;
1988 }
335ce76b
JM		 1989 if (genl_ctrl_alloc_cache(drv->nl_handle_event, &drv->nl_cache_event) <
1990 0) {
1991 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1992 "netlink cache (event)");
1993 goto err3b;
1994 }
9fff9fdc 1995
3f5285e8
JM		 1996 drv->nl80211 = genl_ctrl_search_by_name(drv->nl_cache, "nl80211");
1997 if (drv->nl80211 == NULL) {
1998 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not "
1999 "found");
2000 goto err4;
2001 }
2002
97865538
JM		 2003 ret = nl_get_multicast_id(drv, "nl80211", "scan");
2004 if (ret >= 0)
335ce76b 2005 ret = nl_socket_add_membership(drv->nl_handle_event, ret);
97865538
JM		 2006 if (ret < 0) {
2007 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
2008 "membership for scan events: %d (%s)",
2009 ret, strerror(-ret));
2010 goto err4;
2011 }
c2a04078
JM		 2012
2013 ret = nl_get_multicast_id(drv, "nl80211", "mlme");
2014 if (ret >= 0)
335ce76b 2015 ret = nl_socket_add_membership(drv->nl_handle_event, ret);
c2a04078
JM		 2016 if (ret < 0) {
2017 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
2018 "membership for mlme events: %d (%s)",
2019 ret, strerror(-ret));
2020 goto err4;
2021 }
c2a04078 2022
33c5deb8
JM		 2023 ret = nl_get_multicast_id(drv, "nl80211", "regulatory");
2024 if (ret >= 0)
2025 ret = nl_socket_add_membership(drv->nl_handle_event, ret);
2026 if (ret < 0) {
2027 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast "
2028 "membership for regulatory events: %d (%s)",
2029 ret, strerror(-ret));
2030 /* Continue without regulatory events */
2031 }
2032
335ce76b 2033 eloop_register_read_sock(nl_socket_get_fd(drv->nl_handle_event),
5582a5d1
JB		 2034 wpa_driver_nl80211_event_receive, drv,
2035 drv->nl_handle_event);
97865538 2036
9fff9fdc
JM		 2037 return 0;
2038
2039err4:
335ce76b
JM		 2040 nl_cache_free(drv->nl_cache_event);
2041err3b:
9fff9fdc
JM		 2042 nl_cache_free(drv->nl_cache);
2043err3:
a65a9aed 2044 nl80211_handle_destroy(drv->nl_handle_event);
335ce76b 2045err2b:
a65a9aed 2046 nl80211_handle_destroy(drv->nl_handle);
9fff9fdc
JM		 2047err2:
2048 nl_cb_put(drv->nl_cb);
2049err1:
2050 return -1;
2051}
2052
2053
8401a6b0
JM		 2054static void wpa_driver_nl80211_rfkill_blocked(void *ctx)
2055{
8401a6b0 2056 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked");
a63063b4
JM		 2057 /*
2058 * This may be for any interface; use ifdown event to disable
2059 * interface.
2060 */
8401a6b0
JM		 2061}
2062
2063
2064static void wpa_driver_nl80211_rfkill_unblocked(void *ctx)
2065{
2066 struct wpa_driver_nl80211_data *drv = ctx;
2067 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked");
2068 if (linux_set_iface_flags(drv->ioctl_sock, drv->first_bss.ifname, 1)) {
2069 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP "
2070 "after rfkill unblock");
2071 return;
2072 }
a63063b4 2073 /* rtnetlink ifup handler will report interface as enabled */
8401a6b0
JM		 2074}
2075
2076
6859f1cb
BG		 2077static void nl80211_get_phy_name(struct wpa_driver_nl80211_data *drv)
2078{
2079 /* Find phy (radio) to which this interface belongs */
2080 char buf[90], *pos;
2081 int f, rv;
2082
2083 drv->phyname[0] = '\0';
2084 snprintf(buf, sizeof(buf) - 1, "/sys/class/net/%s/phy80211/name",
2085 drv->first_bss.ifname);
2086 f = open(buf, O_RDONLY);
2087 if (f < 0) {
2088 wpa_printf(MSG_DEBUG, "Could not open file %s: %s",
2089 buf, strerror(errno));
2090 return;
2091 }
2092
2093 rv = read(f, drv->phyname, sizeof(drv->phyname) - 1);
2094 close(f);
2095 if (rv < 0) {
2096 wpa_printf(MSG_DEBUG, "Could not read file %s: %s",
2097 buf, strerror(errno));
2098 return;
2099 }
2100
2101 drv->phyname[rv] = '\0';
2102 pos = os_strchr(drv->phyname, '\n');
2103 if (pos)
2104 *pos = '\0';
2105 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s",
2106 drv->first_bss.ifname, drv->phyname);
2107}
2108
2109
f10bfc9a
JM		 2110#ifdef CONFIG_AP
2111static void nl80211_l2_read(void *ctx, const u8 *src_addr, const u8 *buf,
2112 size_t len)
2113{
2114 wpa_printf(MSG_DEBUG, "nl80211: l2_packet read %u",
2115 (unsigned int) len);
2116}
2117#endif /* CONFIG_AP */
2118
2119
9fff9fdc
JM		 2120/**
2121 * wpa_driver_nl80211_init - Initialize nl80211 driver interface
2122 * @ctx: context to be used when calling wpa_supplicant functions,
2123 * e.g., wpa_supplicant_event()
2124 * @ifname: interface name, e.g., wlan0
f2ed8023 2125 * @global_priv: private driver global data from global_init()
9fff9fdc
JM		 2126 * Returns: Pointer to private data, %NULL on failure
2127 */
f2ed8023
JM		 2128static void * wpa_driver_nl80211_init(void *ctx, const char *ifname,
2129 void *global_priv)
9fff9fdc 2130{
9fff9fdc 2131 struct wpa_driver_nl80211_data *drv;
08063178 2132 struct netlink_config *cfg;
8401a6b0 2133 struct rfkill_config *rcfg;
a2e40bb6 2134 struct i802_bss *bss;
9fff9fdc
JM		 2135
2136 drv = os_zalloc(sizeof(*drv));
2137 if (drv == NULL)
2138 return NULL;
f2ed8023 2139 drv->global = global_priv;
9fff9fdc 2140 drv->ctx = ctx;
a2e40bb6
FF		 2141 bss = &drv->first_bss;
2142 bss->drv = drv;
2143 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname));
9fff9fdc
JM		 2144 drv->monitor_ifidx = -1;
2145 drv->monitor_sock = -1;
bbaf0837 2146 drv->ioctl_sock = -1;
b1f625e0 2147 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
9fff9fdc 2148
ba2d0d7d 2149 if (wpa_driver_nl80211_init_nl(drv)) {
bbaf0837
JM		 2150 os_free(drv);
2151 return NULL;
2152 }
9fff9fdc 2153
6859f1cb
BG		 2154 nl80211_get_phy_name(drv);
2155
3f5285e8
JM		 2156 drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
2157 if (drv->ioctl_sock < 0) {
2158 perror("socket(PF_INET,SOCK_DGRAM)");
bbaf0837 2159 goto failed;
3f5285e8
JM		 2160 }
2161
08063178
JM		 2162 cfg = os_zalloc(sizeof(*cfg));
2163 if (cfg == NULL)
2164 goto failed;
2165 cfg->ctx = drv;
2166 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink;
2167 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink;
2168 drv->netlink = netlink_init(cfg);
2169 if (drv->netlink == NULL) {
2170 os_free(cfg);
2171 goto failed;
2172 }
8401a6b0
JM		 2173
2174 rcfg = os_zalloc(sizeof(*rcfg));
2175 if (rcfg == NULL)
2176 goto failed;
2177 rcfg->ctx = drv;
2178 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname));
2179 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked;
2180 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked;
2181 drv->rfkill = rfkill_init(rcfg);
52169389 2182 if (drv->rfkill == NULL) {
8401a6b0 2183 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available");
52169389
JM		 2184 os_free(rcfg);
2185 }
8401a6b0 2186
08063178 2187 if (wpa_driver_nl80211_finish_drv_init(drv))
bbaf0837 2188 goto failed;
7524cfb1 2189
f10bfc9a
JM		 2190#ifdef CONFIG_AP
2191 drv->l2 = l2_packet_init(ifname, NULL, ETH_P_EAPOL,
2192 nl80211_l2_read, drv, 0);
2193#endif /* CONFIG_AP */
2194
c4bb8817
JB		 2195 if (drv->global)
2196 dl_list_add(&drv->global->interfaces, &drv->list);
2197
a2e40bb6 2198 return bss;
7524cfb1 2199
bbaf0837 2200failed:
8401a6b0 2201 rfkill_deinit(drv->rfkill);
08063178 2202 netlink_deinit(drv->netlink);
bbaf0837
JM		 2203 if (drv->ioctl_sock >= 0)
2204 close(drv->ioctl_sock);
2205
7524cfb1 2206 genl_family_put(drv->nl80211);
7524cfb1 2207 nl_cache_free(drv->nl_cache);
a65a9aed 2208 nl80211_handle_destroy(drv->nl_handle);
7524cfb1 2209 nl_cb_put(drv->nl_cb);
05ba8690 2210 eloop_unregister_read_sock(nl_socket_get_fd(drv->nl_handle_event));
bbaf0837 2211
7524cfb1
JM		 2212 os_free(drv);
2213 return NULL;
2214}
2215
2216
bd94971e 2217static int nl80211_register_frame(struct wpa_driver_nl80211_data *drv,
5582a5d1 2218 struct nl_handle *nl_handle,
bd94971e 2219 u16 type, const u8 *match, size_t match_len)
58f6fbe0
JM		 2220{
2221 struct nl_msg *msg;
2222 int ret = -1;
2223
2224 msg = nlmsg_alloc();
2225 if (!msg)
2226 return -1;
2227
9fb04070 2228 nl80211_cmd(drv, msg, 0, NL80211_CMD_REGISTER_ACTION);
58f6fbe0
JM		 2229
2230 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
bd94971e 2231 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type);
58f6fbe0
JM		 2232 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match);
2233
5582a5d1 2234 ret = send_and_recv(drv, nl_handle, msg, NULL, NULL);
58f6fbe0
JM		 2235 msg = NULL;
2236 if (ret) {
5582a5d1
JB		 2237 wpa_printf(MSG_DEBUG, "nl80211: Register frame command "
2238 "failed (type=%u): ret=%d (%s)",
2239 type, ret, strerror(-ret));
2240 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match",
58f6fbe0
JM		 2241 match, match_len);
2242 goto nla_put_failure;
2243 }
2244 ret = 0;
2245nla_put_failure:
2246 nlmsg_free(msg);
2247 return ret;
2248}
2249
2250
bd94971e
JB		 2251static int nl80211_register_action_frame(struct wpa_driver_nl80211_data *drv,
2252 const u8 *match, size_t match_len)
2253{
2254 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4);
5582a5d1
JB		 2255 return nl80211_register_frame(drv, drv->nl_handle_event,
2256 type, match, match_len);
bd94971e
JB		 2257}
2258
2259
58f6fbe0
JM		 2260static int nl80211_register_action_frames(struct wpa_driver_nl80211_data *drv)
2261{
4fe9fa0d 2262#if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING)
046b26a2
JM		 2263 /* GAS Initial Request */
2264 if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0a", 2) < 0)
2265 return -1;
2266 /* GAS Initial Response */
2267 if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0b", 2) < 0)
2268 return -1;
18708aad
JM		 2269 /* GAS Comeback Request */
2270 if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0c", 2) < 0)
2271 return -1;
2272 /* GAS Comeback Response */
2273 if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0d", 2) < 0)
2274 return -1;
4fe9fa0d
JM		 2275#endif /* CONFIG_P2P || CONFIG_INTERWORKING */
2276#ifdef CONFIG_P2P
046b26a2
JM		 2277 /* P2P Public Action */
2278 if (nl80211_register_action_frame(drv,
2279 (u8 *) "\x04\x09\x50\x6f\x9a\x09",
2280 6) < 0)
2281 return -1;
2282 /* P2P Action */
2283 if (nl80211_register_action_frame(drv,
2284 (u8 *) "\x7f\x50\x6f\x9a\x09",
2285 5) < 0)
2286 return -1;
2287#endif /* CONFIG_P2P */
7d878ca7
JM		 2288#ifdef CONFIG_IEEE80211W
2289 /* SA Query Response */
2290 if (nl80211_register_action_frame(drv, (u8 *) "\x08\x01", 2) < 0)
2291 return -1;
2292#endif /* CONFIG_IEEE80211W */
046b26a2 2293
7b90c16a
JM		 2294 /* FT Action frames */
2295 if (nl80211_register_action_frame(drv, (u8 *) "\x06", 1) < 0)
2296 return -1;
2297 else
2298 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT |
2299 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK;
2300
71269b37
JM		 2301 /* WNM - BSS Transition Management Request */
2302 if (nl80211_register_action_frame(drv, (u8 *) "\x0a\x07", 2) < 0)
2303 return -1;
2304
58f6fbe0
JM		 2305 return 0;
2306}
2307
2308
8401a6b0
JM		 2309static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx)
2310{
2311 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL);
2312}
2313
2314
362f781e 2315static int
7524cfb1
JM		 2316wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv)
2317{
a2e40bb6 2318 struct i802_bss *bss = &drv->first_bss;
8401a6b0 2319 int send_rfkill_event = 0;
a2e40bb6
FF		 2320
2321 drv->ifindex = if_nametoindex(bss->ifname);
2322 drv->first_bss.ifindex = drv->ifindex;
a87c9d96 2323
bbaf0837 2324#ifndef HOSTAPD
ff6a158b
JM		 2325 /*
2326 * Make sure the interface starts up in station mode unless this is a
2327 * dynamically added interface (e.g., P2P) that was already configured
2328 * with proper iftype.
2329 */
2330 if ((drv->global == NULL ||
2331 drv->ifindex != drv->global->if_add_ifindex) &&
b1f625e0 2332 wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION) < 0) {
6e8183d7 2333 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver to "
a87c9d96 2334 "use managed mode");
6e8183d7 2335 return -1;
a87c9d96
JM		 2336 }
2337
a2e40bb6 2338 if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 1)) {
8401a6b0
JM		 2339 if (rfkill_is_blocked(drv->rfkill)) {
2340 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable "
2341 "interface '%s' due to rfkill",
2342 bss->ifname);
a63063b4 2343 drv->if_disabled = 1;
8401a6b0
JM		 2344 send_rfkill_event = 1;
2345 } else {
2346 wpa_printf(MSG_ERROR, "nl80211: Could not set "
2347 "interface '%s' UP", bss->ifname);
2348 return -1;
2349 }
362f781e 2350 }
3f5285e8 2351
08063178 2352 netlink_send_oper_ifla(drv->netlink, drv->ifindex,
e2d02c29 2353 1, IF_OPER_DORMANT);
bbaf0837 2354#endif /* HOSTAPD */
362f781e 2355
2fee890a
JM		 2356 if (wpa_driver_nl80211_capa(drv))
2357 return -1;
2358
2136f480
MH		 2359 if (linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, drv->addr))
2360 return -1;
f2ed8023 2361
7b90c16a
JM		 2362 if (nl80211_register_action_frames(drv) < 0) {
2363 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action "
2364 "frame processing - ignore for now");
2365 /*
2366 * Older kernel versions did not support this, so ignore the
2367 * error for now. Some functionality may not be available
2368 * because of this.
2369 */
2370 }
58f6fbe0 2371
8401a6b0
JM		 2372 if (send_rfkill_event) {
2373 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill,
2374 drv, drv->ctx);
2375 }
2376
362f781e 2377 return 0;
3f5285e8
JM		 2378}
2379
2380
8a27af5c
JM		 2381static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv)
2382{
2383 struct nl_msg *msg;
2384
2385 msg = nlmsg_alloc();
2386 if (!msg)
2387 return -ENOMEM;
2388
9fb04070 2389 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_BEACON);
8a27af5c
JM		 2390 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2391
2392 return send_and_recv_msgs(drv, msg, NULL, NULL);
2393 nla_put_failure:
2394 return -ENOBUFS;
2395}
8a27af5c
JM		 2396
2397
3f5285e8 2398/**
7e5ba1b9
JM		 2399 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface
2400 * @priv: Pointer to private nl80211 data from wpa_driver_nl80211_init()
3f5285e8
JM		 2401 *
2402 * Shut down driver interface and processing of driver events. Free
2403 * private data buffer if one was allocated in wpa_driver_nl80211_init().
2404 */
7e5ba1b9 2405static void wpa_driver_nl80211_deinit(void *priv)
3f5285e8 2406{
a2e40bb6
FF		 2407 struct i802_bss *bss = priv;
2408 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8 2409
f10bfc9a
JM		 2410#ifdef CONFIG_AP
2411 if (drv->l2)
2412 l2_packet_deinit(drv->l2);
2413#endif /* CONFIG_AP */
2414
5582a5d1
JB		 2415 if (drv->nl_handle_preq)
2416 wpa_driver_nl80211_probe_req_report(bss, 0);
e17a2477
JM		 2417 if (bss->added_if_into_bridge) {
2418 if (linux_br_del_if(drv->ioctl_sock, bss->brname, bss->ifname)
94627f6c
JM		 2419 < 0)
2420 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
2421 "interface %s from bridge %s: %s",
e17a2477 2422 bss->ifname, bss->brname, strerror(errno));
94627f6c 2423 }
e17a2477
JM		 2424 if (bss->added_bridge) {
2425 if (linux_br_del(drv->ioctl_sock, bss->brname) < 0)
94627f6c
JM		 2426 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
2427 "bridge %s: %s",
e17a2477 2428 bss->brname, strerror(errno));
94627f6c
JM		 2429 }
2430
460456f8 2431 nl80211_remove_monitor_interface(drv);
8a27af5c 2432
b1f625e0 2433 if (is_ap_interface(drv->nlmode))
8a27af5c 2434 wpa_driver_nl80211_del_beacon(drv);
0915d02c 2435
bbaf0837
JM		 2436#ifdef HOSTAPD
2437 if (drv->last_freq_ht) {
2438 /* Clear HT flags from the driver */
2439 struct hostapd_freq_params freq;
2440 os_memset(&freq, 0, sizeof(freq));
2441 freq.freq = drv->last_freq;
2442 i802_set_freq(priv, &freq);
2443 }
2444
bbaf0837
JM		 2445 if (drv->eapol_sock >= 0) {
2446 eloop_unregister_read_sock(drv->eapol_sock);
2447 close(drv->eapol_sock);
2448 }
2449
2450 if (drv->if_indices != drv->default_if_indices)
2451 os_free(drv->if_indices);
1b648c7e 2452#endif /* HOSTAPD */
3f5285e8 2453
4e5cb1a3
JM		 2454 if (drv->disable_11b_rates)
2455 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
2456
08063178
JM		 2457 netlink_send_oper_ifla(drv->netlink, drv->ifindex, 0, IF_OPER_UP);
2458 netlink_deinit(drv->netlink);
8401a6b0 2459 rfkill_deinit(drv->rfkill);
3f5285e8 2460
bbaf0837
JM		 2461 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
2462
a2e40bb6 2463 (void) linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 0);
b1f625e0 2464 wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION);
3f5285e8 2465
bbaf0837
JM		 2466 if (drv->ioctl_sock >= 0)
2467 close(drv->ioctl_sock);
3f5285e8 2468
335ce76b 2469 eloop_unregister_read_sock(nl_socket_get_fd(drv->nl_handle_event));
3f5285e8
JM		 2470 genl_family_put(drv->nl80211);
2471 nl_cache_free(drv->nl_cache);
335ce76b 2472 nl_cache_free(drv->nl_cache_event);
a65a9aed
JB		 2473 nl80211_handle_destroy(drv->nl_handle);
2474 nl80211_handle_destroy(drv->nl_handle_event);
3f5285e8
JM		 2475 nl_cb_put(drv->nl_cb);
2476
3812464c
JM		 2477 os_free(drv->filter_ssids);
2478
f2ed8023
JM		 2479 if (drv->global)
2480 dl_list_del(&drv->list);
2481
3f5285e8
JM		 2482 os_free(drv);
2483}
2484
2485
2486/**
2487 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion
ad1e68e6 2488 * @eloop_ctx: Driver private data
3f5285e8
JM		 2489 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init()
2490 *
2491 * This function can be used as registered timeout when starting a scan to
2492 * generate a scan completed event if the driver does not report this.
2493 */
2494static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx)
2495{
ad1e68e6 2496 struct wpa_driver_nl80211_data *drv = eloop_ctx;
b1f625e0 2497 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) {
a2e40bb6 2498 wpa_driver_nl80211_set_mode(&drv->first_bss,
b1f625e0
EP		 2499 drv->ap_scan_as_station);
2500 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
ad1e68e6 2501 }
3f5285e8
JM		 2502 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results");
2503 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL);
2504}
2505
2506
2507/**
2508 * wpa_driver_nl80211_scan - Request the driver to initiate scan
ad1e68e6 2509 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
6a1063e0 2510 * @params: Scan parameters
3f5285e8
JM		 2511 * Returns: 0 on success, -1 on failure
2512 */
6a1063e0
JM		 2513static int wpa_driver_nl80211_scan(void *priv,
2514 struct wpa_driver_scan_params *params)
3f5285e8 2515{
a2e40bb6
FF		 2516 struct i802_bss *bss = priv;
2517 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8 2518 int ret = 0, timeout;
47185fc7 2519 struct nl_msg *msg, *ssids, *freqs, *rates;
6a1063e0 2520 size_t i;
3f5285e8 2521
0e75527f
JM		 2522 msg = nlmsg_alloc();
2523 ssids = nlmsg_alloc();
d3a98225 2524 freqs = nlmsg_alloc();
47185fc7
RM		 2525 rates = nlmsg_alloc();
2526 if (!msg || !ssids || !freqs || !rates) {
0e75527f
JM		 2527 nlmsg_free(msg);
2528 nlmsg_free(ssids);
d3a98225 2529 nlmsg_free(freqs);
47185fc7 2530 nlmsg_free(rates);
3f5285e8
JM		 2531 return -1;
2532 }
2533
3812464c
JM		 2534 os_free(drv->filter_ssids);
2535 drv->filter_ssids = params->filter_ssids;
2536 params->filter_ssids = NULL;
2537 drv->num_filter_ssids = params->num_filter_ssids;
2538
9fb04070 2539 nl80211_cmd(drv, msg, 0, NL80211_CMD_TRIGGER_SCAN);
0e75527f
JM		 2540
2541 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3f5285e8 2542
6a1063e0 2543 for (i = 0; i < params->num_ssids; i++) {
9fad706c
JM		 2544 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan SSID",
2545 params->ssids[i].ssid,
2546 params->ssids[i].ssid_len);
6a1063e0
JM		 2547 NLA_PUT(ssids, i + 1, params->ssids[i].ssid_len,
2548 params->ssids[i].ssid);
3f5285e8 2549 }
6a1063e0
JM		 2550 if (params->num_ssids)
2551 nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids);
3f5285e8 2552
d173df52 2553 if (params->extra_ies) {
9fad706c
JM		 2554 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Scan extra IEs",
2555 params->extra_ies, params->extra_ies_len);
d173df52
JM		 2556 NLA_PUT(msg, NL80211_ATTR_IE, params->extra_ies_len,
2557 params->extra_ies);
2558 }
2559
d3a98225 2560 if (params->freqs) {
9fad706c
JM		 2561 for (i = 0; params->freqs[i]; i++) {
2562 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u "
2563 "MHz", params->freqs[i]);
d3a98225 2564 NLA_PUT_U32(freqs, i + 1, params->freqs[i]);
9fad706c 2565 }
d3a98225
JM		 2566 nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES, freqs);
2567 }
2568
47185fc7
RM		 2569 if (params->p2p_probe) {
2570 /*
2571 * Remove 2.4 GHz rates 1, 2, 5.5, 11 Mbps from supported rates
2572 * by masking out everything else apart from the OFDM rates 6,
2573 * 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS rates. All 5 GHz
2574 * rates are left enabled.
2575 */
2576 NLA_PUT(rates, NL80211_BAND_2GHZ, 8,
2577 "\x0c\x12\x18\x24\x30\x48\x60\x6c");
2578 nla_put_nested(msg, NL80211_ATTR_SCAN_SUPP_RATES, rates);
2579 }
2580
0e75527f
JM		 2581 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2582 msg = NULL;
2583 if (ret) {
2584 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d "
2585 "(%s)", ret, strerror(-ret));
ad1e68e6 2586#ifdef HOSTAPD
b1f625e0 2587 if (is_ap_interface(drv->nlmode)) {
ad1e68e6
JM		 2588 /*
2589 * mac80211 does not allow scan requests in AP mode, so
2590 * try to do this in station mode.
2591 */
b1f625e0
EP		 2592 if (wpa_driver_nl80211_set_mode(
2593 bss, NL80211_IFTYPE_STATION))
ad1e68e6
JM		 2594 goto nla_put_failure;
2595
2596 if (wpa_driver_nl80211_scan(drv, params)) {
b1f625e0 2597 wpa_driver_nl80211_set_mode(bss, drv->nlmode);
ad1e68e6
JM		 2598 goto nla_put_failure;
2599 }
2600
2601 /* Restore AP mode when processing scan results */
b1f625e0 2602 drv->ap_scan_as_station = drv->nlmode;
ad1e68e6
JM		 2603 ret = 0;
2604 } else
2605 goto nla_put_failure;
2606#else /* HOSTAPD */
0e75527f 2607 goto nla_put_failure;
ad1e68e6 2608#endif /* HOSTAPD */
3f5285e8
JM		 2609 }
2610
2611 /* Not all drivers generate "scan completed" wireless event, so try to
2612 * read results after a timeout. */
0e75527f 2613 timeout = 10;
3f5285e8
JM		 2614 if (drv->scan_complete_events) {
2615 /*
d173df52
JM		 2616 * The driver seems to deliver events to notify when scan is
2617 * complete, so use longer timeout to avoid race conditions
2618 * with scanning and following association request.
3f5285e8
JM		 2619 */
2620 timeout = 30;
2621 }
2622 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d "
2623 "seconds", ret, timeout);
2624 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
0e75527f
JM		 2625 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout,
2626 drv, drv->ctx);
3f5285e8 2627
0e75527f
JM		 2628nla_put_failure:
2629 nlmsg_free(ssids);
2630 nlmsg_free(msg);
d3a98225 2631 nlmsg_free(freqs);
47185fc7 2632 nlmsg_free(rates);
3f5285e8
JM		 2633 return ret;
2634}
2635
2636
d21c63b9
LC		 2637/**
2638 * wpa_driver_nl80211_sched_scan - Initiate a scheduled scan
2639 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
2640 * @params: Scan parameters
2641 * @interval: Interval between scan cycles in milliseconds
2642 * Returns: 0 on success, -1 on failure or if not supported
2643 */
2644static int wpa_driver_nl80211_sched_scan(void *priv,
2645 struct wpa_driver_scan_params *params,
2646 u32 interval)
2647{
2648 struct i802_bss *bss = priv;
2649 struct wpa_driver_nl80211_data *drv = bss->drv;
2650 int ret = 0;
bd525934 2651 struct nl_msg *msg, *ssids, *freqs, *match_set_ssid, *match_sets;
d21c63b9
LC		 2652 size_t i;
2653
2654 msg = nlmsg_alloc();
2655 ssids = nlmsg_alloc();
2656 freqs = nlmsg_alloc();
2657 if (!msg || !ssids || !freqs) {
2658 nlmsg_free(msg);
2659 nlmsg_free(ssids);
2660 nlmsg_free(freqs);
2661 return -1;
2662 }
2663
2664 os_free(drv->filter_ssids);
2665 drv->filter_ssids = params->filter_ssids;
2666 params->filter_ssids = NULL;
2667 drv->num_filter_ssids = params->num_filter_ssids;
2668
9fb04070 2669 nl80211_cmd(drv, msg, 0, NL80211_CMD_START_SCHED_SCAN);
d21c63b9
LC		 2670
2671 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2672
2673 NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval);
2674
bd525934
LC		 2675 if (drv->num_filter_ssids) {
2676 match_sets = nlmsg_alloc();
2677
2678 for (i = 0; i < drv->num_filter_ssids; i++) {
2679 wpa_hexdump_ascii(MSG_MSGDUMP,
2680 "nl80211: Sched scan filter SSID",
2681 drv->filter_ssids[i].ssid,
2682 drv->filter_ssids[i].ssid_len);
2683
2684 match_set_ssid = nlmsg_alloc();
2685 nla_put(match_set_ssid,
2686 NL80211_ATTR_SCHED_SCAN_MATCH_SSID,
2687 drv->filter_ssids[i].ssid_len,
2688 drv->filter_ssids[i].ssid);
2689
2690 nla_put_nested(match_sets, i + 1, match_set_ssid);
2691
2692 nlmsg_free(match_set_ssid);
2693 }
2694
2695 nla_put_nested(msg, NL80211_ATTR_SCHED_SCAN_MATCH,
2696 match_sets);
2697 nlmsg_free(match_sets);
2698 }
2699
d21c63b9
LC		 2700 for (i = 0; i < params->num_ssids; i++) {
2701 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Sched scan SSID",
2702 params->ssids[i].ssid,
2703 params->ssids[i].ssid_len);
2704 NLA_PUT(ssids, i + 1, params->ssids[i].ssid_len,
2705 params->ssids[i].ssid);
2706 }
2707 if (params->num_ssids)
2708 nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids);
2709
2710 if (params->extra_ies) {
2711 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Sched scan extra IEs",
2712 params->extra_ies, params->extra_ies_len);
2713 NLA_PUT(msg, NL80211_ATTR_IE, params->extra_ies_len,
2714 params->extra_ies);
2715 }
2716
2717 if (params->freqs) {
2718 for (i = 0; params->freqs[i]; i++) {
2719 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u "
2720 "MHz", params->freqs[i]);
2721 NLA_PUT_U32(freqs, i + 1, params->freqs[i]);
2722 }
2723 nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES, freqs);
2724 }
2725
2726 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2727
2728 /* TODO: if we get an error here, we should fall back to normal scan */
2729
2730 msg = NULL;
2731 if (ret) {
2732 wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: "
2733 "ret=%d (%s)", ret, strerror(-ret));
2734 goto nla_put_failure;
2735 }
2736
2737 wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - "
2738 "scan interval %d msec", ret, interval);
2739
2740nla_put_failure:
2741 nlmsg_free(ssids);
2742 nlmsg_free(msg);
2743 nlmsg_free(freqs);
2744 return ret;
2745}
2746
2747
2748/**
2749 * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan
2750 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
2751 * Returns: 0 on success, -1 on failure or if not supported
2752 */
2753static int wpa_driver_nl80211_stop_sched_scan(void *priv)
2754{
2755 struct i802_bss *bss = priv;
2756 struct wpa_driver_nl80211_data *drv = bss->drv;
2757 int ret = 0;
2758 struct nl_msg *msg;
2759
2760 msg = nlmsg_alloc();
2761 if (!msg)
2762 return -1;
2763
9fb04070 2764 nl80211_cmd(drv, msg, 0, NL80211_CMD_STOP_SCHED_SCAN);
d21c63b9
LC		 2765
2766 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2767
2768 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2769 msg = NULL;
2770 if (ret) {
2771 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: "
2772 "ret=%d (%s)", ret, strerror(-ret));
2773 goto nla_put_failure;
2774 }
2775
2776 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret);
2777
2778nla_put_failure:
2779 nlmsg_free(msg);
2780 return ret;
2781}
2782
2783
3812464c
JM		 2784static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie)
2785{
2786 const u8 *end, *pos;
2787
2788 if (ies == NULL)
2789 return NULL;
2790
2791 pos = ies;
2792 end = ies + ies_len;
2793
2794 while (pos + 1 < end) {
2795 if (pos + 2 + pos[1] > end)
2796 break;
2797 if (pos[0] == ie)
2798 return pos;
2799 pos += 2 + pos[1];
2800 }
2801
2802 return NULL;
2803}
2804
2805
2806static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv,
2807 const u8 *ie, size_t ie_len)
2808{
2809 const u8 *ssid;
2810 size_t i;
2811
2812 if (drv->filter_ssids == NULL)
2813 return 0;
2814
2815 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID);
2816 if (ssid == NULL)
2817 return 1;
2818
2819 for (i = 0; i < drv->num_filter_ssids; i++) {
2820 if (ssid[1] == drv->filter_ssids[i].ssid_len &&
2821 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) ==
2822 0)
2823 return 0;
2824 }
2825
2826 return 1;
2827}
2828
2829
b3db1e1c 2830static int bss_info_handler(struct nl_msg *msg, void *arg)
3f5285e8 2831{
b3db1e1c
JM		 2832 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2833 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2834 struct nlattr *bss[NL80211_BSS_MAX + 1];
2835 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
2836 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC },
2837 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 },
2838 [NL80211_BSS_TSF] = { .type = NLA_U64 },
2839 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 },
2840 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 },
2841 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC },
2842 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 },
2843 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 },
e6b8efeb 2844 [NL80211_BSS_STATUS] = { .type = NLA_U32 },
b3ad11bb 2845 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 },
8c090654 2846 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC },
b3db1e1c 2847 };
3812464c
JM		 2848 struct nl80211_bss_info_arg *_arg = arg;
2849 struct wpa_scan_results *res = _arg->res;
3f5285e8
JM		 2850 struct wpa_scan_res **tmp;
2851 struct wpa_scan_res *r;
8c090654
JM		 2852 const u8 *ie, *beacon_ie;
2853 size_t ie_len, beacon_ie_len;
2854 u8 *pos;
46957a9b 2855 size_t i;
3f5285e8 2856
b3db1e1c
JM		 2857 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2858 genlmsg_attrlen(gnlh, 0), NULL);
2859 if (!tb[NL80211_ATTR_BSS])
2860 return NL_SKIP;
2861 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS],
2862 bss_policy))
2863 return NL_SKIP;
f5a8d422
JM		 2864 if (bss[NL80211_BSS_STATUS]) {
2865 enum nl80211_bss_status status;
2866 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
2867 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
2868 bss[NL80211_BSS_FREQUENCY]) {
2869 _arg->assoc_freq =
2870 nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
2871 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz",
2872 _arg->assoc_freq);
2873 }
20f5a4c2
JM		 2874 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
2875 bss[NL80211_BSS_BSSID]) {
2876 os_memcpy(_arg->assoc_bssid,
2877 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN);
2878 wpa_printf(MSG_DEBUG, "nl80211: Associated with "
2879 MACSTR, MAC2STR(_arg->assoc_bssid));
2880 }
f5a8d422
JM		 2881 }
2882 if (!res)
2883 return NL_SKIP;
b3db1e1c
JM		 2884 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) {
2885 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
2886 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
2887 } else {
2888 ie = NULL;
2889 ie_len = 0;
2890 }
8c090654
JM		 2891 if (bss[NL80211_BSS_BEACON_IES]) {
2892 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]);
2893 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]);
2894 } else {
2895 beacon_ie = NULL;
2896 beacon_ie_len = 0;
2897 }
3f5285e8 2898
3812464c
JM		 2899 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie,
2900 ie ? ie_len : beacon_ie_len))
2901 return NL_SKIP;
2902
8c090654 2903 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len);
3f5285e8 2904 if (r == NULL)
b3db1e1c
JM		 2905 return NL_SKIP;
2906 if (bss[NL80211_BSS_BSSID])
2907 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]),
2908 ETH_ALEN);
2909 if (bss[NL80211_BSS_FREQUENCY])
2910 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
2911 if (bss[NL80211_BSS_BEACON_INTERVAL])
2912 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]);
2913 if (bss[NL80211_BSS_CAPABILITY])
2914 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]);
7c2849d2
JM		 2915 r->flags |= WPA_SCAN_NOISE_INVALID;
2916 if (bss[NL80211_BSS_SIGNAL_MBM]) {
b3db1e1c 2917 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]);
7c2849d2
JM		 2918 r->level /= 100; /* mBm to dBm */
2919 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID;
2920 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) {
2921 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]);
2922 r->flags |= WPA_SCAN_LEVEL_INVALID;
2923 } else
2924 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID;
b3db1e1c
JM		 2925 if (bss[NL80211_BSS_TSF])
2926 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]);
b3ad11bb
JM		 2927 if (bss[NL80211_BSS_SEEN_MS_AGO])
2928 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]);
b3db1e1c 2929 r->ie_len = ie_len;
8c090654
JM		 2930 pos = (u8 *) (r + 1);
2931 if (ie) {
2932 os_memcpy(pos, ie, ie_len);
2933 pos += ie_len;
2934 }
2935 r->beacon_ie_len = beacon_ie_len;
2936 if (beacon_ie)
2937 os_memcpy(pos, beacon_ie, beacon_ie_len);
3f5285e8 2938
e6b8efeb
JM		 2939 if (bss[NL80211_BSS_STATUS]) {
2940 enum nl80211_bss_status status;
2941 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
2942 switch (status) {
2943 case NL80211_BSS_STATUS_AUTHENTICATED:
2944 r->flags |= WPA_SCAN_AUTHENTICATED;
2945 break;
2946 case NL80211_BSS_STATUS_ASSOCIATED:
2947 r->flags |= WPA_SCAN_ASSOCIATED;
2948 break;
2949 default:
2950 break;
2951 }
2952 }
2953
46957a9b
JM		 2954 /*
2955 * cfg80211 maintains separate BSS table entries for APs if the same
2956 * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does
2957 * not use frequency as a separate key in the BSS table, so filter out
2958 * duplicated entries. Prefer associated BSS entry in such a case in
2959 * order to get the correct frequency into the BSS table.
2960 */
2961 for (i = 0; i < res->num; i++) {
2962 const u8 *s1, *s2;
2963 if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0)
2964 continue;
2965
2966 s1 = nl80211_get_ie((u8 *) (res->res[i] + 1),
2967 res->res[i]->ie_len, WLAN_EID_SSID);
2968 s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID);
2969 if (s1 == NULL || s2 == NULL || s1[1] != s2[1] ||
2970 os_memcmp(s1, s2, 2 + s1[1]) != 0)
2971 continue;
2972
2973 /* Same BSSID,SSID was already included in scan results */
2974 wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result "
2975 "for " MACSTR, MAC2STR(r->bssid));
2976
2977 if ((r->flags & WPA_SCAN_ASSOCIATED) &&
2978 !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) {
2979 os_free(res->res[i]);
2980 res->res[i] = r;
2981 } else
2982 os_free(r);
2983 return NL_SKIP;
2984 }
2985
3f5285e8
JM		 2986 tmp = os_realloc(res->res,
2987 (res->num + 1) * sizeof(struct wpa_scan_res *));
2988 if (tmp == NULL) {
2989 os_free(r);
b3db1e1c 2990 return NL_SKIP;
3f5285e8
JM		 2991 }
2992 tmp[res->num++] = r;
2993 res->res = tmp;
b3db1e1c
JM		 2994
2995 return NL_SKIP;
3f5285e8 2996}
b3db1e1c 2997
3f5285e8 2998
d72aad94
JM		 2999static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv,
3000 const u8 *addr)
3001{
3002 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
3003 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state "
582507be 3004 "mismatch (" MACSTR ")", MAC2STR(addr));
d72aad94
JM		 3005 wpa_driver_nl80211_mlme(drv, addr,
3006 NL80211_CMD_DEAUTHENTICATE,
77339912 3007 WLAN_REASON_PREV_AUTH_NOT_VALID, 1);
d72aad94
JM		 3008 }
3009}
3010
3011
e6b8efeb
JM		 3012static void wpa_driver_nl80211_check_bss_status(
3013 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res)
3014{
3015 size_t i;
3016
3017 for (i = 0; i < res->num; i++) {
3018 struct wpa_scan_res *r = res->res[i];
3019 if (r->flags & WPA_SCAN_AUTHENTICATED) {
3020 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
3021 "indicates BSS status with " MACSTR
3022 " as authenticated",
3023 MAC2STR(r->bssid));
b1f625e0 3024 if (is_sta_interface(drv->nlmode) &&
e6b8efeb
JM		 3025 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 &&
3026 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) !=
3027 0) {
3028 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID"
3029 " in local state (auth=" MACSTR
3030 " assoc=" MACSTR ")",
3031 MAC2STR(drv->auth_bssid),
3032 MAC2STR(drv->bssid));
582507be 3033 clear_state_mismatch(drv, r->bssid);
e6b8efeb
JM		 3034 }
3035 }
3036
3037 if (r->flags & WPA_SCAN_ASSOCIATED) {
3038 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
3039 "indicate BSS status with " MACSTR
3040 " as associated",
3041 MAC2STR(r->bssid));
b1f625e0 3042 if (is_sta_interface(drv->nlmode) &&
e6b8efeb
JM		 3043 !drv->associated) {
3044 wpa_printf(MSG_DEBUG, "nl80211: Local state "
3045 "(not associated) does not match "
3046 "with BSS state");
d72aad94 3047 clear_state_mismatch(drv, r->bssid);
b1f625e0 3048 } else if (is_sta_interface(drv->nlmode) &&
e6b8efeb
JM		 3049 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) !=
3050 0) {
3051 wpa_printf(MSG_DEBUG, "nl80211: Local state "
3052 "(associated with " MACSTR ") does "
3053 "not match with BSS state",
d72aad94
JM		 3054 MAC2STR(drv->bssid));
3055 clear_state_mismatch(drv, r->bssid);
3056 clear_state_mismatch(drv, drv->bssid);
e6b8efeb
JM		 3057 }
3058 }
3059 }
3060}
3061
3062
d1f9c410
JM		 3063static void wpa_scan_results_free(struct wpa_scan_results *res)
3064{
3065 size_t i;
3066
3067 if (res == NULL)
3068 return;
3069
3070 for (i = 0; i < res->num; i++)
3071 os_free(res->res[i]);
3072 os_free(res->res);
3073 os_free(res);
3074}
3075
3076
7e5ba1b9 3077static struct wpa_scan_results *
8856462d 3078nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv)
3f5285e8 3079{
b3db1e1c 3080 struct nl_msg *msg;
3f5285e8 3081 struct wpa_scan_results *res;
b3db1e1c 3082 int ret;
3812464c 3083 struct nl80211_bss_info_arg arg;
3f5285e8
JM		 3084
3085 res = os_zalloc(sizeof(*res));
b3db1e1c 3086 if (res == NULL)
8e2c104f 3087 return NULL;
b3db1e1c
JM		 3088 msg = nlmsg_alloc();
3089 if (!msg)
3090 goto nla_put_failure;
3f5285e8 3091
9fb04070 3092 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
b3db1e1c 3093 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3f5285e8 3094
3812464c
JM		 3095 arg.drv = drv;
3096 arg.res = res;
3097 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
b3db1e1c
JM		 3098 msg = NULL;
3099 if (ret == 0) {
3100 wpa_printf(MSG_DEBUG, "Received scan results (%lu BSSes)",
3101 (unsigned long) res->num);
3102 return res;
3f5285e8 3103 }
b3db1e1c
JM		 3104 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
3105 "(%s)", ret, strerror(-ret));
3106nla_put_failure:
3107 nlmsg_free(msg);
3108 wpa_scan_results_free(res);
3109 return NULL;
3f5285e8
JM		 3110}
3111
3112
8856462d
JM		 3113/**
3114 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results
3115 * @priv: Pointer to private wext data from wpa_driver_nl80211_init()
3116 * Returns: Scan results on success, -1 on failure
3117 */
3118static struct wpa_scan_results *
3119wpa_driver_nl80211_get_scan_results(void *priv)
3120{
a2e40bb6
FF		 3121 struct i802_bss *bss = priv;
3122 struct wpa_driver_nl80211_data *drv = bss->drv;
8856462d
JM		 3123 struct wpa_scan_results *res;
3124
3125 res = nl80211_get_scan_results(drv);
3126 if (res)
3127 wpa_driver_nl80211_check_bss_status(drv, res);
3128 return res;
3129}
3130
3131
3132static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv)
3133{
3134 struct wpa_scan_results *res;
3135 size_t i;
3136
3137 res = nl80211_get_scan_results(drv);
3138 if (res == NULL) {
3139 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results");
3140 return;
3141 }
3142
3143 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump");
3144 for (i = 0; i < res->num; i++) {
3145 struct wpa_scan_res *r = res->res[i];
3146 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s",
3147 (int) i, (int) res->num, MAC2STR(r->bssid),
3148 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "",
3149 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : "");
3150 }
3151
3152 wpa_scan_results_free(res);
3153}
3154
3155
642187d6 3156static int wpa_driver_nl80211_set_key(const char *ifname, void *priv,
71934751
JM		 3157 enum wpa_alg alg, const u8 *addr,
3158 int key_idx, int set_tx,
642187d6
JM		 3159 const u8 *seq, size_t seq_len,
3160 const u8 *key, size_t key_len)
3f5285e8 3161{
a2e40bb6
FF		 3162 struct i802_bss *bss = priv;
3163 struct wpa_driver_nl80211_data *drv = bss->drv;
642187d6 3164 int ifindex = if_nametoindex(ifname);
3f5285e8 3165 struct nl_msg *msg;
1ad1cdc2 3166 int ret;
3f5285e8 3167
1ad1cdc2
JM		 3168 wpa_printf(MSG_DEBUG, "%s: ifindex=%d alg=%d addr=%p key_idx=%d "
3169 "set_tx=%d seq_len=%lu key_len=%lu",
3170 __func__, ifindex, alg, addr, key_idx, set_tx,
3f5285e8
JM		 3171 (unsigned long) seq_len, (unsigned long) key_len);
3172
3173 msg = nlmsg_alloc();
1ad1cdc2
JM		 3174 if (!msg)
3175 return -ENOMEM;
3f5285e8
JM		 3176
3177 if (alg == WPA_ALG_NONE) {
9fb04070 3178 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_KEY);
3f5285e8 3179 } else {
9fb04070 3180 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_KEY);
3f5285e8 3181 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key);
d723bab4
JM		 3182 switch (alg) {
3183 case WPA_ALG_WEP:
3184 if (key_len == 5)
3185 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
3186 WLAN_CIPHER_SUITE_WEP40);
3187 else
3188 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
3189 WLAN_CIPHER_SUITE_WEP104);
3190 break;
3191 case WPA_ALG_TKIP:
3192 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
3193 WLAN_CIPHER_SUITE_TKIP);
3194 break;
3195 case WPA_ALG_CCMP:
3196 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
3197 WLAN_CIPHER_SUITE_CCMP);
3198 break;
3199 case WPA_ALG_IGTK:
3200 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
3201 WLAN_CIPHER_SUITE_AES_CMAC);
3202 break;
3203 default:
3204 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
3205 "algorithm %d", __func__, alg);
3f5285e8
JM		 3206 nlmsg_free(msg);
3207 return -1;
3208 }
3209 }
3210
849ef835 3211 if (seq && seq_len)
1ad1cdc2
JM		 3212 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq);
3213
0382097e 3214 if (addr && !is_broadcast_ether_addr(addr)) {
3f5285e8
JM		 3215 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr));
3216 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
89c38e32
JM		 3217
3218 if (alg != WPA_ALG_WEP && key_idx && !set_tx) {
3219 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK");
3220 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE,
3221 NL80211_KEYTYPE_GROUP);
3222 }
60ea8187
JM		 3223 } else if (addr && is_broadcast_ether_addr(addr)) {
3224 struct nl_msg *types;
3225 int err;
3226 wpa_printf(MSG_DEBUG, " broadcast key");
3227 types = nlmsg_alloc();
3228 if (!types)
3229 goto nla_put_failure;
3230 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
3231 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
3232 types);
3233 nlmsg_free(types);
3234 if (err)
3235 goto nla_put_failure;
3f5285e8
JM		 3236 }
3237 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1ad1cdc2 3238 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
3f5285e8 3239
1ad1cdc2 3240 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
15664ad0 3241 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE)
1ad1cdc2
JM		 3242 ret = 0;
3243 if (ret)
3244 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)",
3245 ret, strerror(-ret));
3f5285e8 3246
1ad1cdc2
JM		 3247 /*
3248 * If we failed or don't need to set the default TX key (below),
3249 * we're done here.
3250 */
3251 if (ret || !set_tx || alg == WPA_ALG_NONE)
3252 return ret;
b1f625e0 3253 if (is_ap_interface(drv->nlmode) && addr &&
0382097e 3254 !is_broadcast_ether_addr(addr))
de12717a 3255 return ret;
3f5285e8 3256
1ad1cdc2
JM		 3257 msg = nlmsg_alloc();
3258 if (!msg)
3259 return -ENOMEM;
3f5285e8 3260
9fb04070 3261 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_KEY);
1ad1cdc2
JM		 3262 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
3263 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
3264 if (alg == WPA_ALG_IGTK)
3265 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT);
3266 else
3267 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
60ea8187
JM		 3268 if (addr && is_broadcast_ether_addr(addr)) {
3269 struct nl_msg *types;
3270 int err;
3271 types = nlmsg_alloc();
3272 if (!types)
3273 goto nla_put_failure;
3274 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
3275 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
3276 types);
3277 nlmsg_free(types);
3278 if (err)
3279 goto nla_put_failure;
3280 } else if (addr) {
3281 struct nl_msg *types;
3282 int err;
3283 types = nlmsg_alloc();
3284 if (!types)
3285 goto nla_put_failure;
3286 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_UNICAST);
3287 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
3288 types);
3289 nlmsg_free(types);
3290 if (err)
3291 goto nla_put_failure;
3292 }
3f5285e8 3293
1ad1cdc2
JM		 3294 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3295 if (ret == -ENOENT)
3296 ret = 0;
3297 if (ret)
3298 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; "
3299 "err=%d %s)", ret, strerror(-ret));
3300 return ret;
3f5285e8
JM		 3301
3302nla_put_failure:
6241fcb1 3303 return -ENOBUFS;
3f5285e8
JM		 3304}
3305
3306
71934751 3307static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg,
0194fedb
JB		 3308 int key_idx, int defkey,
3309 const u8 *seq, size_t seq_len,
3310 const u8 *key, size_t key_len)
3311{
3312 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY);
3313 if (!key_attr)
3314 return -1;
3315
3316 if (defkey && alg == WPA_ALG_IGTK)
3317 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT);
3318 else if (defkey)
3319 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
3320
3321 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx);
3322
d723bab4
JM		 3323 switch (alg) {
3324 case WPA_ALG_WEP:
3325 if (key_len == 5)
2aa5f847
JM		 3326 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
3327 WLAN_CIPHER_SUITE_WEP40);
d723bab4 3328 else
2aa5f847
JM		 3329 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
3330 WLAN_CIPHER_SUITE_WEP104);
d723bab4
JM		 3331 break;
3332 case WPA_ALG_TKIP:
2aa5f847 3333 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP);
d723bab4
JM		 3334 break;
3335 case WPA_ALG_CCMP:
2aa5f847 3336 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP);
d723bab4
JM		 3337 break;
3338 case WPA_ALG_IGTK:
2aa5f847
JM		 3339 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
3340 WLAN_CIPHER_SUITE_AES_CMAC);
d723bab4
JM		 3341 break;
3342 default:
3343 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
3344 "algorithm %d", __func__, alg);
0194fedb 3345 return -1;
d723bab4 3346 }
0194fedb
JB		 3347
3348 if (seq && seq_len)
3349 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq);
3350
3351 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key);
3352
3353 nla_nest_end(msg, key_attr);
3354
3355 return 0;
3356 nla_put_failure:
3357 return -1;
3358}
3359
c811d5bc 3360
cfaab580
ZY		 3361static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params,
3362 struct nl_msg *msg)
3363{
3364 int i, privacy = 0;
3365 struct nlattr *nl_keys, *nl_key;
3366
3367 for (i = 0; i < 4; i++) {
3368 if (!params->wep_key[i])
3369 continue;
3370 privacy = 1;
3371 break;
3372 }
ce04af5a
JM		 3373 if (params->wps == WPS_MODE_PRIVACY)
3374 privacy = 1;
3375 if (params->pairwise_suite &&
3376 params->pairwise_suite != WPA_CIPHER_NONE)
3377 privacy = 1;
3378
cfaab580
ZY		 3379 if (!privacy)
3380 return 0;
3381
3382 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
3383
3384 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS);
3385 if (!nl_keys)
3386 goto nla_put_failure;
3387
3388 for (i = 0; i < 4; i++) {
3389 if (!params->wep_key[i])
3390 continue;
3391
3392 nl_key = nla_nest_start(msg, i);
3393 if (!nl_key)
3394 goto nla_put_failure;
3395
3396 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i],
3397 params->wep_key[i]);
3398 if (params->wep_key_len[i] == 5)
3399 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
3400 WLAN_CIPHER_SUITE_WEP40);
3401 else
3402 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
3403 WLAN_CIPHER_SUITE_WEP104);
3404
3405 NLA_PUT_U8(msg, NL80211_KEY_IDX, i);
3406
3407 if (i == params->wep_tx_keyidx)
3408 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
3409
3410 nla_nest_end(msg, nl_key);
3411 }
3412 nla_nest_end(msg, nl_keys);
3413
3414 return 0;
3415
3416nla_put_failure:
3417 return -ENOBUFS;
3418}
3419
3420
c2a04078 3421static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
77339912
JM		 3422 const u8 *addr, int cmd, u16 reason_code,
3423 int local_state_change)
c2a04078
JM		 3424{
3425 int ret = -1;
3426 struct nl_msg *msg;
3427
3428 msg = nlmsg_alloc();
3429 if (!msg)
3430 return -1;
3431
9fb04070 3432 nl80211_cmd(drv, msg, 0, cmd);
c2a04078
JM		 3433
3434 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3435 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code);
3436 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
77339912
JM		 3437 if (local_state_change)
3438 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
c2a04078
JM		 3439
3440 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3441 msg = NULL;
3442 if (ret) {
3443 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
3444 "(%s)", ret, strerror(-ret));
3445 goto nla_put_failure;
3446 }
3447 ret = 0;
3448
3449nla_put_failure:
3450 nlmsg_free(msg);
3451 return ret;
3452}
3f5285e8
JM		 3453
3454
cfaab580
ZY		 3455static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv,
3456 const u8 *addr, int reason_code)
3457{
2e75a2b3
JM		 3458 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)",
3459 __func__, MAC2STR(addr), reason_code);
cfaab580
ZY		 3460 drv->associated = 0;
3461 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISCONNECT,
77339912 3462 reason_code, 0);
cfaab580
ZY		 3463}
3464
3465
3f5285e8 3466static int wpa_driver_nl80211_deauthenticate(void *priv, const u8 *addr,
c2a04078 3467 int reason_code)
3f5285e8 3468{
a2e40bb6
FF		 3469 struct i802_bss *bss = priv;
3470 struct wpa_driver_nl80211_data *drv = bss->drv;
cfaab580
ZY		 3471 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
3472 return wpa_driver_nl80211_disconnect(drv, addr, reason_code);
2e75a2b3
JM		 3473 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)",
3474 __func__, MAC2STR(addr), reason_code);
13405f35 3475 drv->associated = 0;
21bdbe38
JM		 3476 if (drv->nlmode == NL80211_IFTYPE_ADHOC)
3477 return nl80211_leave_ibss(drv);
c2a04078 3478 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE,
77339912 3479 reason_code, 0);
3f5285e8
JM		 3480}
3481
3482
3483static int wpa_driver_nl80211_disassociate(void *priv, const u8 *addr,
c2a04078 3484 int reason_code)
3f5285e8 3485{
a2e40bb6
FF		 3486 struct i802_bss *bss = priv;
3487 struct wpa_driver_nl80211_data *drv = bss->drv;
cfaab580
ZY		 3488 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
3489 return wpa_driver_nl80211_disconnect(drv, addr, reason_code);
c2a04078 3490 wpa_printf(MSG_DEBUG, "%s", __func__);
13405f35 3491 drv->associated = 0;
c2a04078 3492 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISASSOCIATE,
77339912 3493 reason_code, 0);
3f5285e8
JM		 3494}
3495
3496
c2a04078
JM		 3497static int wpa_driver_nl80211_authenticate(
3498 void *priv, struct wpa_driver_auth_params *params)
3499{
a2e40bb6
FF		 3500 struct i802_bss *bss = priv;
3501 struct wpa_driver_nl80211_data *drv = bss->drv;
a0b2f99b 3502 int ret = -1, i;
c2a04078
JM		 3503 struct nl_msg *msg;
3504 enum nl80211_auth_type type;
2f4f73b1 3505 enum nl80211_iftype nlmode;
6d6f4bb8 3506 int count = 0;
c2a04078
JM		 3507
3508 drv->associated = 0;
e6b8efeb 3509 os_memset(drv->auth_bssid, 0, ETH_ALEN);
af473088 3510 /* FIX: IBSS mode */
2f4f73b1
EP		 3511 nlmode = params->p2p ?
3512 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
3513 if (drv->nlmode != nlmode &&
3514 wpa_driver_nl80211_set_mode(priv, nlmode) < 0)
4a867032
JM		 3515 return -1;
3516
6d6f4bb8 3517retry:
c2a04078
JM		 3518 msg = nlmsg_alloc();
3519 if (!msg)
3520 return -1;
3521
3522 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)",
3523 drv->ifindex);
a0b2f99b 3524
9fb04070 3525 nl80211_cmd(drv, msg, 0, NL80211_CMD_AUTHENTICATE);
0194fedb 3526
a0b2f99b
JM		 3527 for (i = 0; i < 4; i++) {
3528 if (!params->wep_key[i])
3529 continue;
2ea2fcc7
HS		 3530 wpa_driver_nl80211_set_key(bss->ifname, priv, WPA_ALG_WEP,
3531 NULL, i,
a0b2f99b
JM		 3532 i == params->wep_tx_keyidx, NULL, 0,
3533 params->wep_key[i],
3534 params->wep_key_len[i]);
0194fedb
JB		 3535 if (params->wep_tx_keyidx != i)
3536 continue;
3537 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0,
3538 params->wep_key[i], params->wep_key_len[i])) {
3539 nlmsg_free(msg);
3540 return -1;
3541 }
a0b2f99b
JM		 3542 }
3543
c2a04078
JM		 3544 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3545 if (params->bssid) {
3546 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
3547 MAC2STR(params->bssid));
3548 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
3549 }
3550 if (params->freq) {
3551 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
3552 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
3553 }
3554 if (params->ssid) {
3555 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
3556 params->ssid, params->ssid_len);
3557 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
3558 params->ssid);
3559 }
3560 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len);
3561 if (params->ie)
3562 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie);
abd9fafa 3563 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
c2a04078 3564 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
abd9fafa 3565 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
c2a04078 3566 type = NL80211_AUTHTYPE_SHARED_KEY;
abd9fafa 3567 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
c2a04078 3568 type = NL80211_AUTHTYPE_NETWORK_EAP;
abd9fafa 3569 else if (params->auth_alg & WPA_AUTH_ALG_FT)
c2a04078
JM		 3570 type = NL80211_AUTHTYPE_FT;
3571 else
3572 goto nla_put_failure;
3573 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
3574 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
77339912
JM		 3575 if (params->local_state_change) {
3576 wpa_printf(MSG_DEBUG, " * Local state change only");
3577 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
3578 }
c2a04078
JM		 3579
3580 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3581 msg = NULL;
3582 if (ret) {
3583 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
3584 "(%s)", ret, strerror(-ret));
6d6f4bb8 3585 count++;
77339912
JM		 3586 if (ret == -EALREADY && count == 1 && params->bssid &&
3587 !params->local_state_change) {
6d6f4bb8
JM		 3588 /*
3589 * mac80211 does not currently accept new
3590 * authentication if we are already authenticated. As a
3591 * workaround, force deauthentication and try again.
3592 */
3593 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication "
3594 "after forced deauthentication");
3595 wpa_driver_nl80211_deauthenticate(
5205c4f9 3596 bss, params->bssid,
6d6f4bb8
JM		 3597 WLAN_REASON_PREV_AUTH_NOT_VALID);
3598 nlmsg_free(msg);
3599 goto retry;
3600 }
c2a04078
JM		 3601 goto nla_put_failure;
3602 }
3603 ret = 0;
3604 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send "
3605 "successfully");
3606
3607nla_put_failure:
3608 nlmsg_free(msg);
3609 return ret;
3610}
3611
3612
282d5590
JM		 3613struct phy_info_arg {
3614 u16 *num_modes;
3615 struct hostapd_hw_modes *modes;
3616};
3617
3618static int phy_info_handler(struct nl_msg *msg, void *arg)
3619{
3620 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
3621 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3622 struct phy_info_arg *phy_info = arg;
3623
3624 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
3625
3626 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
3627 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
3628 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
3629 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
3630 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG },
3631 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG },
3632 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
3633 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
3634 };
3635
3636 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
3637 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
3638 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
3639 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = { .type = NLA_FLAG },
3640 };
3641
3642 struct nlattr *nl_band;
3643 struct nlattr *nl_freq;
3644 struct nlattr *nl_rate;
3645 int rem_band, rem_freq, rem_rate;
3646 struct hostapd_hw_modes *mode;
3647 int idx, mode_is_set;
3648
3649 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3650 genlmsg_attrlen(gnlh, 0), NULL);
3651
3652 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
3653 return NL_SKIP;
3654
3655 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) {
e62fb0a0 3656 mode = os_realloc(phy_info->modes, (*phy_info->num_modes + 1) * sizeof(*mode));
282d5590
JM		 3657 if (!mode)
3658 return NL_SKIP;
3659 phy_info->modes = mode;
3660
3661 mode_is_set = 0;
3662
3663 mode = &phy_info->modes[*(phy_info->num_modes)];
3664 memset(mode, 0, sizeof(*mode));
3665 *(phy_info->num_modes) += 1;
3666
3667 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
3668 nla_len(nl_band), NULL);
3669
3670 if (tb_band[NL80211_BAND_ATTR_HT_CAPA]) {
3671 mode->ht_capab = nla_get_u16(
3672 tb_band[NL80211_BAND_ATTR_HT_CAPA]);
3673 }
3674
be8eb8ab
JM		 3675 if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) {
3676 mode->a_mpdu_params |= nla_get_u8(
3677 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) &
3678 0x03;
3679 }
3680
3681 if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) {
3682 mode->a_mpdu_params |= nla_get_u8(
3683 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) <<
3684 2;
3685 }
3686
08eb154d
JM		 3687 if (tb_band[NL80211_BAND_ATTR_HT_MCS_SET] &&
3688 nla_len(tb_band[NL80211_BAND_ATTR_HT_MCS_SET])) {
3689 u8 *mcs;
3690 mcs = nla_data(tb_band[NL80211_BAND_ATTR_HT_MCS_SET]);
3691 os_memcpy(mode->mcs_set, mcs, 16);
3692 }
3693
282d5590
JM		 3694 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
3695 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
3696 nla_len(nl_freq), freq_policy);
3697 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
3698 continue;
3699 mode->num_channels++;
3700 }
3701
e62fb0a0 3702 mode->channels = os_zalloc(mode->num_channels * sizeof(struct hostapd_channel_data));
282d5590
JM		 3703 if (!mode->channels)
3704 return NL_SKIP;
3705
3706 idx = 0;
3707
3708 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
3709 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
3710 nla_len(nl_freq), freq_policy);
3711 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
3712 continue;
3713
3714 mode->channels[idx].freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
3715 mode->channels[idx].flag = 0;
3716
3717 if (!mode_is_set) {
3718 /* crude heuristic */
3719 if (mode->channels[idx].freq < 4000)
3720 mode->mode = HOSTAPD_MODE_IEEE80211B;
3721 else
3722 mode->mode = HOSTAPD_MODE_IEEE80211A;
3723 mode_is_set = 1;
3724 }
3725
3726 /* crude heuristic */
3727 if (mode->channels[idx].freq < 4000)
5a0ffb5f 3728 if (mode->channels[idx].freq == 2484)
282d5590
JM		 3729 mode->channels[idx].chan = 14;
3730 else
3731 mode->channels[idx].chan = (mode->channels[idx].freq - 2407) / 5;
3732 else
3733 mode->channels[idx].chan = mode->channels[idx].freq/5 - 1000;
3734
3735 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
3736 mode->channels[idx].flag |=
3737 HOSTAPD_CHAN_DISABLED;
3738 if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
3739 mode->channels[idx].flag |=
3740 HOSTAPD_CHAN_PASSIVE_SCAN;
3741 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS])
3742 mode->channels[idx].flag |=
3743 HOSTAPD_CHAN_NO_IBSS;
3744 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
3745 mode->channels[idx].flag |=
3746 HOSTAPD_CHAN_RADAR;
3747
3748 if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] &&
3749 !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
3750 mode->channels[idx].max_tx_power =
3751 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100;
3752
3753 idx++;
3754 }
3755
3756 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
3757 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
3758 nla_len(nl_rate), rate_policy);
3759 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
3760 continue;
3761 mode->num_rates++;
3762 }
3763
e62fb0a0 3764 mode->rates = os_zalloc(mode->num_rates * sizeof(int));
282d5590
JM		 3765 if (!mode->rates)
3766 return NL_SKIP;
3767
3768 idx = 0;
3769
3770 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
3771 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
3772 nla_len(nl_rate), rate_policy);
3773 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
3774 continue;
fb7842aa 3775 mode->rates[idx] = nla_get_u32(tb_rate[NL80211_BITRATE_ATTR_RATE]);
282d5590
JM		 3776
3777 /* crude heuristic */
3778 if (mode->mode == HOSTAPD_MODE_IEEE80211B &&
fb7842aa 3779 mode->rates[idx] > 200)
282d5590
JM		 3780 mode->mode = HOSTAPD_MODE_IEEE80211G;
3781
282d5590
JM		 3782 idx++;
3783 }
3784 }
3785
3786 return NL_SKIP;
3787}
3788
3789static struct hostapd_hw_modes *
3790wpa_driver_nl80211_add_11b(struct hostapd_hw_modes *modes, u16 *num_modes)
3791{
3792 u16 m;
3793 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
3794 int i, mode11g_idx = -1;
3795
3796 /* If only 802.11g mode is included, use it to construct matching
3797 * 802.11b mode data. */
3798
3799 for (m = 0; m < *num_modes; m++) {
3800 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
3801 return modes; /* 802.11b already included */
3802 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
3803 mode11g_idx = m;
3804 }
3805
3806 if (mode11g_idx < 0)
3807 return modes; /* 2.4 GHz band not supported at all */
3808
3809 nmodes = os_realloc(modes, (*num_modes + 1) * sizeof(*nmodes));
3810 if (nmodes == NULL)
3811 return modes; /* Could not add 802.11b mode */
3812
3813 mode = &nmodes[*num_modes];
3814 os_memset(mode, 0, sizeof(*mode));
3815 (*num_modes)++;
3816 modes = nmodes;
3817
3818 mode->mode = HOSTAPD_MODE_IEEE80211B;
3819
3820 mode11g = &modes[mode11g_idx];
3821 mode->num_channels = mode11g->num_channels;
3822 mode->channels = os_malloc(mode11g->num_channels *
3823 sizeof(struct hostapd_channel_data));
3824 if (mode->channels == NULL) {
3825 (*num_modes)--;
3826 return modes; /* Could not add 802.11b mode */
3827 }
3828 os_memcpy(mode->channels, mode11g->channels,
3829 mode11g->num_channels * sizeof(struct hostapd_channel_data));
3830
3831 mode->num_rates = 0;
fb7842aa 3832 mode->rates = os_malloc(4 * sizeof(int));
282d5590
JM		 3833 if (mode->rates == NULL) {
3834 os_free(mode->channels);
3835 (*num_modes)--;
3836 return modes; /* Could not add 802.11b mode */
3837 }
3838
3839 for (i = 0; i < mode11g->num_rates; i++) {
fb7842aa
JM		 3840 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 &&
3841 mode11g->rates[i] != 55 && mode11g->rates[i] != 110)
282d5590
JM		 3842 continue;
3843 mode->rates[mode->num_rates] = mode11g->rates[i];
3844 mode->num_rates++;
3845 if (mode->num_rates == 4)
3846 break;
3847 }
3848
3849 if (mode->num_rates == 0) {
3850 os_free(mode->channels);
3851 os_free(mode->rates);
3852 (*num_modes)--;
3853 return modes; /* No 802.11b rates */
3854 }
3855
3856 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
3857 "information");
3858
3859 return modes;
3860}
3861
3862
d8e66e80
JM		 3863static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start,
3864 int end)
3865{
3866 int c;
3867
3868 for (c = 0; c < mode->num_channels; c++) {
3869 struct hostapd_channel_data *chan = &mode->channels[c];
3870 if (chan->freq - 10 >= start && chan->freq + 10 <= end)
3871 chan->flag |= HOSTAPD_CHAN_HT40;
3872 }
3873}
3874
3875
3876static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start,
3877 int end)
3878{
3879 int c;
3880
3881 for (c = 0; c < mode->num_channels; c++) {
3882 struct hostapd_channel_data *chan = &mode->channels[c];
3883 if (!(chan->flag & HOSTAPD_CHAN_HT40))
3884 continue;
3885 if (chan->freq - 30 >= start && chan->freq - 10 <= end)
3886 chan->flag |= HOSTAPD_CHAN_HT40MINUS;
3887 if (chan->freq + 10 >= start && chan->freq + 30 <= end)
3888 chan->flag |= HOSTAPD_CHAN_HT40PLUS;
3889 }
3890}
3891
3892
3893static void nl80211_reg_rule_ht40(struct nlattr *tb[],
3894 struct phy_info_arg *results)
3895{
3896 u32 start, end, max_bw;
3897 u16 m;
3898
3899 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
3900 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
3901 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
3902 return;
3903
3904 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
3905 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
3906 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
3907
3908 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz",
3909 start, end, max_bw);
3910 if (max_bw < 40)
3911 return;
3912
3913 for (m = 0; m < *results->num_modes; m++) {
3914 if (!(results->modes[m].ht_capab &
3915 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
3916 continue;
3917 nl80211_set_ht40_mode(&results->modes[m], start, end);
3918 }
3919}
3920
3921
3922static void nl80211_reg_rule_sec(struct nlattr *tb[],
3923 struct phy_info_arg *results)
3924{
3925 u32 start, end, max_bw;
3926 u16 m;
3927
3928 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
3929 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
3930 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
3931 return;
3932
3933 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
3934 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
3935 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
3936
3937 if (max_bw < 20)
3938 return;
3939
3940 for (m = 0; m < *results->num_modes; m++) {
3941 if (!(results->modes[m].ht_capab &
3942 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
3943 continue;
3944 nl80211_set_ht40_mode_sec(&results->modes[m], start, end);
3945 }
3946}
3947
3948
3949static int nl80211_get_reg(struct nl_msg *msg, void *arg)
3950{
3951 struct phy_info_arg *results = arg;
3952 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
3953 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3954 struct nlattr *nl_rule;
3955 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1];
3956 int rem_rule;
3957 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
3958 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3959 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3960 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3961 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3962 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3963 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3964 };
3965
3966 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3967 genlmsg_attrlen(gnlh, 0), NULL);
3968 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] ||
3969 !tb_msg[NL80211_ATTR_REG_RULES]) {
3970 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information "
3971 "available");
3972 return NL_SKIP;
3973 }
3974
3975 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s",
3976 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]));
3977
3978 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
3979 {
3980 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
3981 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
3982 nl80211_reg_rule_ht40(tb_rule, results);
3983 }
3984
3985 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
3986 {
3987 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
3988 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
3989 nl80211_reg_rule_sec(tb_rule, results);
3990 }
3991
3992 return NL_SKIP;
3993}
3994
3995
3996static int nl80211_set_ht40_flags(struct wpa_driver_nl80211_data *drv,
3997 struct phy_info_arg *results)
3998{
3999 struct nl_msg *msg;
4000
4001 msg = nlmsg_alloc();
4002 if (!msg)
4003 return -ENOMEM;
4004
9fb04070 4005 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_REG);
d8e66e80
JM		 4006 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results);
4007}
4008
4009
282d5590
JM		 4010static struct hostapd_hw_modes *
4011wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
4012{
a2e40bb6
FF		 4013 struct i802_bss *bss = priv;
4014 struct wpa_driver_nl80211_data *drv = bss->drv;
282d5590
JM		 4015 struct nl_msg *msg;
4016 struct phy_info_arg result = {
4017 .num_modes = num_modes,
4018 .modes = NULL,
4019 };
4020
4021 *num_modes = 0;
4022 *flags = 0;
4023
4024 msg = nlmsg_alloc();
4025 if (!msg)
4026 return NULL;
4027
9fb04070 4028 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY);
282d5590
JM		 4029
4030 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4031
d8e66e80
JM		 4032 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) {
4033 nl80211_set_ht40_flags(drv, &result);
282d5590 4034 return wpa_driver_nl80211_add_11b(result.modes, num_modes);
d8e66e80 4035 }
282d5590
JM		 4036 nla_put_failure:
4037 return NULL;
4038}
4039
4040
2c2010ac
JM		 4041static int wpa_driver_nl80211_send_frame(struct wpa_driver_nl80211_data *drv,
4042 const void *data, size_t len,
4043 int encrypt)
4044{
4045 __u8 rtap_hdr[] = {
4046 0x00, 0x00, /* radiotap version */
4047 0x0e, 0x00, /* radiotap length */
4048 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */
4049 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */
4050 0x00, /* padding */
4051 0x00, 0x00, /* RX and TX flags to indicate that */
4052 0x00, 0x00, /* this is the injected frame directly */
4053 };
4054 struct iovec iov[2] = {
4055 {
4056 .iov_base = &rtap_hdr,
4057 .iov_len = sizeof(rtap_hdr),
4058 },
4059 {
4060 .iov_base = (void *) data,
4061 .iov_len = len,
4062 }
4063 };
4064 struct msghdr msg = {
4065 .msg_name = NULL,
4066 .msg_namelen = 0,
4067 .msg_iov = iov,
4068 .msg_iovlen = 2,
4069 .msg_control = NULL,
4070 .msg_controllen = 0,
4071 .msg_flags = 0,
4072 };
ebbec8b2 4073 int res;
2c2010ac
JM		 4074
4075 if (encrypt)
4076 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP;
4077
866af8b6
JM		 4078 if (drv->monitor_sock < 0) {
4079 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available "
4080 "for %s", __func__);
4081 return -1;
4082 }
4083
ebbec8b2
JM		 4084 res = sendmsg(drv->monitor_sock, &msg, 0);
4085 if (res < 0) {
4086 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno));
4087 return -1;
4088 }
4089 return 0;
2c2010ac
JM		 4090}
4091
4092
4093static int wpa_driver_nl80211_send_mlme(void *priv, const u8 *data,
4094 size_t data_len)
4095{
a2e40bb6
FF		 4096 struct i802_bss *bss = priv;
4097 struct wpa_driver_nl80211_data *drv = bss->drv;
2c2010ac 4098 struct ieee80211_mgmt *mgmt;
7a47d567 4099 int encrypt = 1;
2c2010ac
JM		 4100 u16 fc;
4101
4102 mgmt = (struct ieee80211_mgmt *) data;
4103 fc = le_to_host16(mgmt->frame_control);
4104
b1f625e0 4105 if (is_sta_interface(drv->nlmode) &&
5582a5d1
JB		 4106 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
4107 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) {
4108 /*
4109 * The use of last_mgmt_freq is a bit of a hack,
4110 * but it works due to the single-threaded nature
4111 * of wpa_supplicant.
4112 */
5dfca53f 4113 return nl80211_send_frame_cmd(drv, drv->last_mgmt_freq, 0,
5582a5d1
JB		 4114 data, data_len, NULL);
4115 }
4116
86957e62
JM		 4117 if (drv->no_monitor_iface_capab && is_ap_interface(drv->nlmode)) {
4118 return nl80211_send_frame_cmd(drv, drv->ap_oper_freq, 0,
4119 data, data_len, NULL);
4120 }
4121
2c2010ac
JM		 4122 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
4123 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) {
4124 /*
4125 * Only one of the authentication frame types is encrypted.
4126 * In order for static WEP encryption to work properly (i.e.,
4127 * to not encrypt the frame), we need to tell mac80211 about
4128 * the frames that must not be encrypted.
4129 */
4130 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
4131 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction);
7a47d567
JB		 4132 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3)
4133 encrypt = 0;
2c2010ac
JM		 4134 }
4135
7a47d567 4136 return wpa_driver_nl80211_send_frame(drv, data, data_len, encrypt);
2c2010ac
JM		 4137}
4138
4139
fd13a541
JM		 4140static int nl80211_set_ap_isolate(struct i802_bss *bss, int enabled)
4141{
4142 struct wpa_driver_nl80211_data *drv = bss->drv;
4143 struct nl_msg *msg;
4144
4145 msg = nlmsg_alloc();
4146 if (!msg)
4147 return -ENOMEM;
4148
9fb04070 4149 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS);
fd13a541
JM		 4150
4151 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
4152 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, enabled);
4153
4154 return send_and_recv_msgs(drv, msg, NULL, NULL);
4155 nla_put_failure:
4156 return -ENOBUFS;
4157}
4158
4159
31357268
JM		 4160static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble,
4161 int slot, int ht_opmode)
4162{
4163 struct wpa_driver_nl80211_data *drv = bss->drv;
4164 struct nl_msg *msg;
4165
4166 msg = nlmsg_alloc();
4167 if (!msg)
4168 return -ENOMEM;
4169
9fb04070 4170 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS);
31357268
JM		 4171
4172 if (cts >= 0)
4173 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts);
4174 if (preamble >= 0)
4175 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble);
4176 if (slot >= 0)
4177 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot);
4178 if (ht_opmode >= 0)
4179 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode);
4180 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
4181
4182 return send_and_recv_msgs(drv, msg, NULL, NULL);
4183 nla_put_failure:
4184 return -ENOBUFS;
4185}
4186
4187
19c3b566
JM		 4188static int wpa_driver_nl80211_set_ap(void *priv,
4189 struct wpa_driver_ap_params *params)
d2440ba0 4190{
a2e40bb6
FF		 4191 struct i802_bss *bss = priv;
4192 struct wpa_driver_nl80211_data *drv = bss->drv;
d2440ba0
JM		 4193 struct nl_msg *msg;
4194 u8 cmd = NL80211_CMD_NEW_BEACON;
4195 int ret;
b4fd6fab 4196 int beacon_set;
8b897f5a 4197 int ifindex = if_nametoindex(bss->ifname);
b11d1d64
JM		 4198 int num_suites;
4199 u32 suites[10];
4200 u32 ver;
b4fd6fab 4201
b4fd6fab 4202 beacon_set = bss->beacon_set;
d2440ba0
JM		 4203
4204 msg = nlmsg_alloc();
4205 if (!msg)
4206 return -ENOMEM;
4207
4208 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)",
b4fd6fab
JM		 4209 beacon_set);
4210 if (beacon_set)
d2440ba0
JM		 4211 cmd = NL80211_CMD_SET_BEACON;
4212
9fb04070 4213 nl80211_cmd(drv, msg, 0, cmd);
19c3b566
JM		 4214 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head);
4215 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail);
b4fd6fab 4216 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
19c3b566
JM		 4217 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int);
4218 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period);
ccb941e6
JM		 4219 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
4220 params->ssid);
97a7a0b5
JM		 4221 switch (params->hide_ssid) {
4222 case NO_SSID_HIDING:
4223 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
4224 NL80211_HIDDEN_SSID_NOT_IN_USE);
4225 break;
4226 case HIDDEN_SSID_ZERO_LEN:
4227 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
4228 NL80211_HIDDEN_SSID_ZERO_LEN);
4229 break;
4230 case HIDDEN_SSID_ZERO_CONTENTS:
4231 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
4232 NL80211_HIDDEN_SSID_ZERO_CONTENTS);
4233 break;
4234 }
b11d1d64
JM		 4235 if (params->privacy)
4236 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
4237 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) ==
4238 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) {
4239 /* Leave out the attribute */
4240 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED)
4241 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE,
4242 NL80211_AUTHTYPE_SHARED_KEY);
4243 else
4244 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE,
4245 NL80211_AUTHTYPE_OPEN_SYSTEM);
4246
4247 ver = 0;
4248 if (params->wpa_version & WPA_PROTO_WPA)
4249 ver |= NL80211_WPA_VERSION_1;
4250 if (params->wpa_version & WPA_PROTO_RSN)
4251 ver |= NL80211_WPA_VERSION_2;
4252 if (ver)
4253 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
4254
4255 num_suites = 0;
4256 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X)
4257 suites[num_suites++] = WLAN_AKM_SUITE_8021X;
4258 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK)
4259 suites[num_suites++] = WLAN_AKM_SUITE_PSK;
4260 if (num_suites) {
4261 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES,
4262 num_suites * sizeof(u32), suites);
4263 }
4264
4265 num_suites = 0;
4266 if (params->pairwise_ciphers & WPA_CIPHER_CCMP)
4267 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP;
4268 if (params->pairwise_ciphers & WPA_CIPHER_TKIP)
4269 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP;
4270 if (params->pairwise_ciphers & WPA_CIPHER_WEP104)
4271 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104;
4272 if (params->pairwise_ciphers & WPA_CIPHER_WEP40)
4273 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40;
4274 if (num_suites) {
4275 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE,
4276 num_suites * sizeof(u32), suites);
4277 }
4278
4279 switch (params->group_cipher) {
4280 case WPA_CIPHER_CCMP:
4281 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
4282 WLAN_CIPHER_SUITE_CCMP);
4283 break;
4284 case WPA_CIPHER_TKIP:
4285 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
4286 WLAN_CIPHER_SUITE_TKIP);
4287 break;
4288 case WPA_CIPHER_WEP104:
4289 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
4290 WLAN_CIPHER_SUITE_WEP104);
4291 break;
4292 case WPA_CIPHER_WEP40:
4293 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
4294 WLAN_CIPHER_SUITE_WEP40);
4295 break;
4296 }
d2440ba0 4297
fb91db56
JM		 4298 if (params->beacon_ies) {
4299 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies),
4300 wpabuf_head(params->beacon_ies));
4301 }
4302 if (params->proberesp_ies) {
4303 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP,
4304 wpabuf_len(params->proberesp_ies),
4305 wpabuf_head(params->proberesp_ies));
4306 }
4307 if (params->assocresp_ies) {
4308 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP,
4309 wpabuf_len(params->assocresp_ies),
4310 wpabuf_head(params->assocresp_ies));
4311 }
4312
d2440ba0
JM		 4313 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4314 if (ret) {
4315 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)",
4316 ret, strerror(-ret));
b4fd6fab 4317 } else {
b4fd6fab 4318 bss->beacon_set = 1;
fd13a541
JM		 4319 ret = nl80211_set_ap_isolate(bss, params->isolate);
4320 if (!params->isolate && ret) {
4321 wpa_printf(MSG_DEBUG, "nl80211: Ignore AP isolation "
4322 "configuration error since isolation is "
4323 "not used");
4324 ret = 0;
4325 }
31357268
JM		 4326
4327 nl80211_set_bss(bss, params->cts_protect, params->preamble,
4328 params->short_slot_time, params->ht_opmode);
b4fd6fab 4329 }
d2440ba0
JM		 4330 return ret;
4331 nla_put_failure:
4332 return -ENOBUFS;
4333}
4334
4335
f019981a
JM		 4336static int wpa_driver_nl80211_set_freq(struct wpa_driver_nl80211_data *drv,
4337 int freq, int ht_enabled,
4338 int sec_channel_offset)
1581b38b
JM		 4339{
4340 struct nl_msg *msg;
d2440ba0 4341 int ret;
1581b38b 4342
44dc872e
JM		 4343 wpa_printf(MSG_DEBUG, "nl80211: Set freq %d (ht_enabled=%d "
4344 "sec_channel_offset=%d)",
4345 freq, ht_enabled, sec_channel_offset);
1581b38b
JM		 4346 msg = nlmsg_alloc();
4347 if (!msg)
4348 return -1;
4349
9fb04070 4350 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
1581b38b
JM		 4351
4352 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
f019981a
JM		 4353 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
4354 if (ht_enabled) {
4355 switch (sec_channel_offset) {
4356 case -1:
4357 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
4358 NL80211_CHAN_HT40MINUS);
4359 break;
4360 case 1:
4361 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
4362 NL80211_CHAN_HT40PLUS);
4363 break;
4364 default:
4365 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
4366 NL80211_CHAN_HT20);
4367 break;
4368 }
4369 }
1581b38b 4370
d2440ba0
JM		 4371 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4372 if (ret == 0)
1581b38b 4373 return 0;
f019981a
JM		 4374 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): "
4375 "%d (%s)", freq, ret, strerror(-ret));
1581b38b
JM		 4376nla_put_failure:
4377 return -1;
4378}
4379
0f4e8b4f 4380
95ab6063
AN		 4381static u32 sta_flags_nl80211(int flags)
4382{
4383 u32 f = 0;
4384
4385 if (flags & WPA_STA_AUTHORIZED)
4386 f |= BIT(NL80211_STA_FLAG_AUTHORIZED);
4387 if (flags & WPA_STA_WMM)
4388 f |= BIT(NL80211_STA_FLAG_WME);
4389 if (flags & WPA_STA_SHORT_PREAMBLE)
4390 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
4391 if (flags & WPA_STA_MFP)
4392 f |= BIT(NL80211_STA_FLAG_MFP);
4393
4394 return f;
4395}
4396
4397
62847751 4398static int wpa_driver_nl80211_sta_add(void *priv,
0f4e8b4f
JM		 4399 struct hostapd_sta_add_params *params)
4400{
a2e40bb6
FF		 4401 struct i802_bss *bss = priv;
4402 struct wpa_driver_nl80211_data *drv = bss->drv;
0f4e8b4f 4403 struct nl_msg *msg;
95ab6063 4404 struct nl80211_sta_flag_update upd;
0f4e8b4f
JM		 4405 int ret = -ENOBUFS;
4406
4407 msg = nlmsg_alloc();
4408 if (!msg)
4409 return -ENOMEM;
4410
9fb04070 4411 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_STATION);
0f4e8b4f 4412
62847751 4413 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
0f4e8b4f
JM		 4414 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr);
4415 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid);
4416 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len,
4417 params->supp_rates);
4418 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL,
4419 params->listen_interval);
0f4e8b4f
JM		 4420 if (params->ht_capabilities) {
4421 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY,
fc4e2d95
JM		 4422 sizeof(*params->ht_capabilities),
4423 params->ht_capabilities);
0f4e8b4f 4424 }
0f4e8b4f 4425
95ab6063
AN		 4426 os_memset(&upd, 0, sizeof(upd));
4427 upd.mask = sta_flags_nl80211(params->flags);
4428 upd.set = upd.mask;
4429 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
4430
0f4e8b4f
JM		 4431 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4432 if (ret)
4433 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_NEW_STATION "
4434 "result: %d (%s)", ret, strerror(-ret));
4435 if (ret == -EEXIST)
4436 ret = 0;
4437 nla_put_failure:
4438 return ret;
4439}
4440
4441
4442static int wpa_driver_nl80211_sta_remove(void *priv, const u8 *addr)
4443{
a2e40bb6
FF		 4444 struct i802_bss *bss = priv;
4445 struct wpa_driver_nl80211_data *drv = bss->drv;
0f4e8b4f
JM		 4446 struct nl_msg *msg;
4447 int ret;
4448
4449 msg = nlmsg_alloc();
4450 if (!msg)
4451 return -ENOMEM;
4452
9fb04070 4453 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION);
0f4e8b4f
JM		 4454
4455 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 4456 if_nametoindex(bss->ifname));
0f4e8b4f
JM		 4457 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
4458
4459 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4460 if (ret == -ENOENT)
4461 return 0;
4462 return ret;
4463 nla_put_failure:
4464 return -ENOBUFS;
4465}
4466
1581b38b 4467
0915d02c
JM		 4468static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
4469 int ifidx)
4470{
4471 struct nl_msg *msg;
4472
c6e8e8e4
JM		 4473 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx);
4474
2135f224
JM		 4475#ifdef HOSTAPD
4476 /* stop listening for EAPOL on this interface */
4477 del_ifidx(drv, ifidx);
4478#endif /* HOSTAPD */
4479
0915d02c
JM		 4480 msg = nlmsg_alloc();
4481 if (!msg)
4482 goto nla_put_failure;
4483
9fb04070 4484 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_INTERFACE);
0915d02c
JM		 4485 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx);
4486
4487 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
4488 return;
4489 nla_put_failure:
e748062b 4490 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx);
0915d02c
JM		 4491}
4492
4493
a1922f93
JM		 4494static const char * nl80211_iftype_str(enum nl80211_iftype mode)
4495{
4496 switch (mode) {
4497 case NL80211_IFTYPE_ADHOC:
4498 return "ADHOC";
4499 case NL80211_IFTYPE_STATION:
4500 return "STATION";
4501 case NL80211_IFTYPE_AP:
4502 return "AP";
4503 case NL80211_IFTYPE_MONITOR:
4504 return "MONITOR";
4505 case NL80211_IFTYPE_P2P_CLIENT:
4506 return "P2P_CLIENT";
4507 case NL80211_IFTYPE_P2P_GO:
4508 return "P2P_GO";
4509 default:
4510 return "unknown";
4511 }
4512}
4513
4514
a35187e7
KH		 4515static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv,
4516 const char *ifname,
4517 enum nl80211_iftype iftype,
fbbfcbac 4518 const u8 *addr, int wds)
0915d02c
JM		 4519{
4520 struct nl_msg *msg, *flags = NULL;
4521 int ifidx;
4522 int ret = -ENOBUFS;
4523
a1922f93
JM		 4524 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)",
4525 iftype, nl80211_iftype_str(iftype));
4526
0915d02c
JM		 4527 msg = nlmsg_alloc();
4528 if (!msg)
4529 return -1;
4530
9fb04070 4531 nl80211_cmd(drv, msg, 0, NL80211_CMD_NEW_INTERFACE);
0915d02c
JM		 4532 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4533 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname);
4534 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype);
4535
4536 if (iftype == NL80211_IFTYPE_MONITOR) {
4537 int err;
4538
4539 flags = nlmsg_alloc();
4540 if (!flags)
4541 goto nla_put_failure;
4542
4543 NLA_PUT_FLAG(flags, NL80211_MNTR_FLAG_COOK_FRAMES);
4544
4545 err = nla_put_nested(msg, NL80211_ATTR_MNTR_FLAGS, flags);
4546
4547 nlmsg_free(flags);
4548
4549 if (err)
4550 goto nla_put_failure;
fbbfcbac
FF		 4551 } else if (wds) {
4552 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds);
0915d02c
JM		 4553 }
4554
4555 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4556 if (ret) {
4557 nla_put_failure:
a35187e7
KH		 4558 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)",
4559 ifname, ret, strerror(-ret));
0915d02c
JM		 4560 return ret;
4561 }
4562
4563 ifidx = if_nametoindex(ifname);
c6e8e8e4
JM		 4564 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d",
4565 ifname, ifidx);
0915d02c
JM		 4566
4567 if (ifidx <= 0)
4568 return -1;
4569
2135f224
JM		 4570#ifdef HOSTAPD
4571 /* start listening for EAPOL on this interface */
4572 add_ifidx(drv, ifidx);
7bfc47c3 4573#endif /* HOSTAPD */
2135f224 4574
7bfc47c3 4575 if (addr && iftype != NL80211_IFTYPE_MONITOR &&
2ac9688e 4576 linux_set_ifhwaddr(drv->ioctl_sock, ifname, addr)) {
41d931ee
JM		 4577 nl80211_remove_iface(drv, ifidx);
4578 return -1;
2135f224 4579 }
2135f224 4580
0915d02c
JM		 4581 return ifidx;
4582}
22a7c9d7
JM		 4583
4584
a35187e7
KH		 4585static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
4586 const char *ifname, enum nl80211_iftype iftype,
fbbfcbac 4587 const u8 *addr, int wds)
a35187e7
KH		 4588{
4589 int ret;
4590
fbbfcbac 4591 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds);
a35187e7 4592
ffbf1eaa 4593 /* if error occurred and interface exists already */
a35187e7
KH		 4594 if (ret == -ENFILE && if_nametoindex(ifname)) {
4595 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname);
4596
4597 /* Try to remove the interface that was already there. */
4598 nl80211_remove_iface(drv, if_nametoindex(ifname));
4599
4600 /* Try to create the interface again */
fbbfcbac
FF		 4601 ret = nl80211_create_iface_once(drv, ifname, iftype, addr,
4602 wds);
a35187e7
KH		 4603 }
4604
4e5cb1a3
JM		 4605 if (ret >= 0 && drv->disable_11b_rates)
4606 nl80211_disable_11b_rates(drv, ret, 1);
4607
a35187e7
KH		 4608 return ret;
4609}
0915d02c 4610
2135f224 4611
0915d02c
JM		 4612static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok)
4613{
4614 struct ieee80211_hdr *hdr;
f8b1f695
JM		 4615 u16 fc;
4616 union wpa_event_data event;
0915d02c
JM		 4617
4618 hdr = (struct ieee80211_hdr *) buf;
4619 fc = le_to_host16(hdr->frame_control);
4620
f8b1f695
JM		 4621 os_memset(&event, 0, sizeof(event));
4622 event.tx_status.type = WLAN_FC_GET_TYPE(fc);
4623 event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
4624 event.tx_status.dst = hdr->addr1;
4625 event.tx_status.data = buf;
4626 event.tx_status.data_len = len;
4627 event.tx_status.ack = ok;
4628 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event);
0915d02c
JM		 4629}
4630
4631
4b9841d3 4632static void from_unknown_sta(struct wpa_driver_nl80211_data *drv,
0d9fc3d8 4633 u8 *buf, size_t len)
0915d02c 4634{
9b90955e
JB		 4635 struct ieee80211_hdr *hdr = (void *)buf;
4636 u16 fc;
f8b1f695 4637 union wpa_event_data event;
9b90955e
JB		 4638
4639 if (len < sizeof(*hdr))
4640 return;
4641
4642 fc = le_to_host16(hdr->frame_control);
4643
f8b1f695 4644 os_memset(&event, 0, sizeof(event));
9b90955e
JB		 4645 event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len);
4646 event.rx_from_unknown.addr = hdr->addr2;
4647 event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) ==
4648 (WLAN_FC_FROMDS | WLAN_FC_TODS);
f8b1f695 4649 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event);
4b9841d3 4650}
0915d02c 4651
4b9841d3
JM		 4652
4653static void handle_frame(struct wpa_driver_nl80211_data *drv,
2a8b7416 4654 u8 *buf, size_t len, int datarate, int ssi_signal)
4b9841d3
JM		 4655{
4656 struct ieee80211_hdr *hdr;
f8b1f695
JM		 4657 u16 fc;
4658 union wpa_event_data event;
0915d02c
JM		 4659
4660 hdr = (struct ieee80211_hdr *) buf;
4661 fc = le_to_host16(hdr->frame_control);
0915d02c 4662
4b9841d3 4663 switch (WLAN_FC_GET_TYPE(fc)) {
0915d02c 4664 case WLAN_FC_TYPE_MGMT:
f8b1f695
JM		 4665 os_memset(&event, 0, sizeof(event));
4666 event.rx_mgmt.frame = buf;
4667 event.rx_mgmt.frame_len = len;
2a8b7416
JM		 4668 event.rx_mgmt.datarate = datarate;
4669 event.rx_mgmt.ssi_signal = ssi_signal;
f8b1f695 4670 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
0915d02c
JM		 4671 break;
4672 case WLAN_FC_TYPE_CTRL:
4673 /* can only get here with PS-Poll frames */
4674 wpa_printf(MSG_DEBUG, "CTRL");
0d9fc3d8 4675 from_unknown_sta(drv, buf, len);
0915d02c
JM		 4676 break;
4677 case WLAN_FC_TYPE_DATA:
0d9fc3d8 4678 from_unknown_sta(drv, buf, len);
0915d02c
JM		 4679 break;
4680 }
4681}
4682
4683
4684static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx)
4685{
4686 struct wpa_driver_nl80211_data *drv = eloop_ctx;
4687 int len;
4688 unsigned char buf[3000];
4689 struct ieee80211_radiotap_iterator iter;
4690 int ret;
2a8b7416 4691 int datarate = 0, ssi_signal = 0;
4b9841d3 4692 int injected = 0, failed = 0, rxflags = 0;
0915d02c
JM		 4693
4694 len = recv(sock, buf, sizeof(buf), 0);
4695 if (len < 0) {
4696 perror("recv");
4697 return;
4698 }
4699
4700 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) {
4701 printf("received invalid radiotap frame\n");
4702 return;
4703 }
4704
0915d02c
JM		 4705 while (1) {
4706 ret = ieee80211_radiotap_iterator_next(&iter);
4707 if (ret == -ENOENT)
4708 break;
4709 if (ret) {
4710 printf("received invalid radiotap frame (%d)\n", ret);
4711 return;
4712 }
4713 switch (iter.this_arg_index) {
4714 case IEEE80211_RADIOTAP_FLAGS:
4715 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS)
4716 len -= 4;
4717 break;
4718 case IEEE80211_RADIOTAP_RX_FLAGS:
4719 rxflags = 1;
4720 break;
4721 case IEEE80211_RADIOTAP_TX_FLAGS:
4722 injected = 1;
4723 failed = le_to_host16((*(uint16_t *) iter.this_arg)) &
4724 IEEE80211_RADIOTAP_F_TX_FAIL;
4725 break;
4726 case IEEE80211_RADIOTAP_DATA_RETRIES:
4727 break;
4728 case IEEE80211_RADIOTAP_CHANNEL:
2a8b7416 4729 /* TODO: convert from freq/flags to channel number */
0915d02c
JM		 4730 break;
4731 case IEEE80211_RADIOTAP_RATE:
2a8b7416 4732 datarate = *iter.this_arg * 5;
0915d02c
JM		 4733 break;
4734 case IEEE80211_RADIOTAP_DB_ANTSIGNAL:
2a8b7416 4735 ssi_signal = *iter.this_arg;
0915d02c
JM		 4736 break;
4737 }
4738 }
4739
4740 if (rxflags && injected)
4741 return;
4742
4743 if (!injected)
4b9841d3 4744 handle_frame(drv, buf + iter.max_length,
2a8b7416 4745 len - iter.max_length, datarate, ssi_signal);
0915d02c 4746 else
4b9841d3
JM		 4747 handle_tx_callback(drv->ctx, buf + iter.max_length,
4748 len - iter.max_length, !failed);
0915d02c
JM		 4749}
4750
4751
4752/*
4753 * we post-process the filter code later and rewrite
4754 * this to the offset to the last instruction
4755 */
4756#define PASS 0xFF
4757#define FAIL 0xFE
4758
4759static struct sock_filter msock_filter_insns[] = {
4760 /*
4761 * do a little-endian load of the radiotap length field
4762 */
4763 /* load lower byte into A */
4764 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2),
4765 /* put it into X (== index register) */
4766 BPF_STMT(BPF_MISC| BPF_TAX, 0),
4767 /* load upper byte into A */
4768 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3),
4769 /* left-shift it by 8 */
4770 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8),
4771 /* or with X */
4772 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0),
4773 /* put result into X */
4774 BPF_STMT(BPF_MISC| BPF_TAX, 0),
4775
4776 /*
4777 * Allow management frames through, this also gives us those
4778 * management frames that we sent ourselves with status
4779 */
4780 /* load the lower byte of the IEEE 802.11 frame control field */
4781 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
4782 /* mask off frame type and version */
4783 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF),
4784 /* accept frame if it's both 0, fall through otherwise */
4785 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0),
4786
4787 /*
4788 * TODO: add a bit to radiotap RX flags that indicates
4789 * that the sending station is not associated, then
4790 * add a filter here that filters on our DA and that flag
4791 * to allow us to deauth frames to that bad station.
4792 *
65ae1afd 4793 * For now allow all To DS data frames through.
0915d02c 4794 */
65ae1afd
HS		 4795 /* load the IEEE 802.11 frame control field */
4796 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0),
4797 /* mask off frame type, version and DS status */
4798 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03),
4799 /* accept frame if version 0, type 2 and To DS, fall through otherwise
4800 */
4801 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0),
0915d02c
JM		 4802
4803#if 0
4804 /*
fbbfcbac 4805 * drop non-data frames
0915d02c
JM		 4806 */
4807 /* load the lower byte of the frame control field */
4808 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
4809 /* mask off QoS bit */
4810 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c),
4811 /* drop non-data frames */
4812 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL),
fbbfcbac 4813#endif
0915d02c 4814 /* load the upper byte of the frame control field */
fbbfcbac 4815 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1),
0915d02c
JM		 4816 /* mask off toDS/fromDS */
4817 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03),
fbbfcbac
FF		 4818 /* accept WDS frames */
4819 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0),
0915d02c
JM		 4820
4821 /*
4822 * add header length to index
4823 */
4824 /* load the lower byte of the frame control field */
4825 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
4826 /* mask off QoS bit */
4827 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80),
4828 /* right shift it by 6 to give 0 or 2 */
4829 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6),
4830 /* add data frame header length */
4831 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24),
4832 /* add index, was start of 802.11 header */
4833 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0),
4834 /* move to index, now start of LL header */
4835 BPF_STMT(BPF_MISC | BPF_TAX, 0),
4836
4837 /*
4838 * Accept empty data frames, we use those for
4839 * polling activity.
4840 */
4841 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0),
4842 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0),
4843
4844 /*
4845 * Accept EAPOL frames
4846 */
4847 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0),
4848 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL),
4849 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4),
4850 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL),
4851
4852 /* keep these last two statements or change the code below */
4853 /* return 0 == "DROP" */
4854 BPF_STMT(BPF_RET | BPF_K, 0),
4855 /* return ~0 == "keep all" */
4856 BPF_STMT(BPF_RET | BPF_K, ~0),
4857};
4858
4859static struct sock_fprog msock_filter = {
4860 .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]),
4861 .filter = msock_filter_insns,
4862};
4863
4864
4865static int add_monitor_filter(int s)
4866{
4867 int idx;
4868
4869 /* rewrite all PASS/FAIL jump offsets */
4870 for (idx = 0; idx < msock_filter.len; idx++) {
4871 struct sock_filter *insn = &msock_filter_insns[idx];
4872
4873 if (BPF_CLASS(insn->code) == BPF_JMP) {
4874 if (insn->code == (BPF_JMP|BPF_JA)) {
4875 if (insn->k == PASS)
4876 insn->k = msock_filter.len - idx - 2;
4877 else if (insn->k == FAIL)
4878 insn->k = msock_filter.len - idx - 3;
4879 }
4880
4881 if (insn->jt == PASS)
4882 insn->jt = msock_filter.len - idx - 2;
4883 else if (insn->jt == FAIL)
4884 insn->jt = msock_filter.len - idx - 3;
4885
4886 if (insn->jf == PASS)
4887 insn->jf = msock_filter.len - idx - 2;
4888 else if (insn->jf == FAIL)
4889 insn->jf = msock_filter.len - idx - 3;
4890 }
4891 }
4892
4893 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER,
4894 &msock_filter, sizeof(msock_filter))) {
4895 perror("SO_ATTACH_FILTER");
4896 return -1;
4897 }
4898
4899 return 0;
4900}
4901
4902
460456f8
JM		 4903static void nl80211_remove_monitor_interface(
4904 struct wpa_driver_nl80211_data *drv)
4905{
4906 if (drv->monitor_ifidx >= 0) {
4907 nl80211_remove_iface(drv, drv->monitor_ifidx);
4908 drv->monitor_ifidx = -1;
4909 }
504e905c
JM		 4910 if (drv->monitor_sock >= 0) {
4911 eloop_unregister_read_sock(drv->monitor_sock);
4912 close(drv->monitor_sock);
4913 drv->monitor_sock = -1;
4914 }
460456f8
JM		 4915}
4916
4917
0915d02c
JM		 4918static int
4919nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv)
4920{
4921 char buf[IFNAMSIZ];
4922 struct sockaddr_ll ll;
4923 int optval;
4924 socklen_t optlen;
0915d02c 4925
6758b167
JJ		 4926 if (os_strncmp(drv->first_bss.ifname, "p2p-", 4) == 0) {
4927 /*
4928 * P2P interface name is of the format p2p-%s-%d. For monitor
4929 * interface name corresponding to P2P GO, replace "p2p-" with
4930 * "mon-" to retain the same interface name length and to
4931 * indicate that it is a monitor interface.
4932 */
4933 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss.ifname + 4);
4934 } else {
4935 /* Non-P2P interface with AP functionality. */
4936 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss.ifname);
4937 }
4938
0915d02c
JM		 4939 buf[IFNAMSIZ - 1] = '\0';
4940
4941 drv->monitor_ifidx =
fbbfcbac
FF		 4942 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL,
4943 0);
0915d02c 4944
866af8b6
JM		 4945 if (drv->monitor_ifidx == -EOPNOTSUPP) {
4946 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support "
4947 "monitor interface type - try to run without it");
4948 drv->no_monitor_iface_capab = 1;
4949 }
4950
0915d02c
JM		 4951 if (drv->monitor_ifidx < 0)
4952 return -1;
4953
34f2f814 4954 if (linux_set_iface_flags(drv->ioctl_sock, buf, 1))
0915d02c 4955 goto error;
0915d02c
JM		 4956
4957 memset(&ll, 0, sizeof(ll));
4958 ll.sll_family = AF_PACKET;
4959 ll.sll_ifindex = drv->monitor_ifidx;
4960 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
4961 if (drv->monitor_sock < 0) {
4962 perror("socket[PF_PACKET,SOCK_RAW]");
4963 goto error;
4964 }
4965
4966 if (add_monitor_filter(drv->monitor_sock)) {
4967 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor "
4968 "interface; do filtering in user space");
4969 /* This works, but will cost in performance. */
4970 }
4971
2135f224 4972 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) {
0915d02c
JM		 4973 perror("monitor socket bind");
4974 goto error;
4975 }
4976
4977 optlen = sizeof(optval);
4978 optval = 20;
4979 if (setsockopt
4980 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) {
4981 perror("Failed to set socket priority");
4982 goto error;
4983 }
4984
4985 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read,
4986 drv, NULL)) {
4987 printf("Could not register monitor read socket\n");
4988 goto error;
4989 }
4990
4991 return 0;
4992 error:
460456f8 4993 nl80211_remove_monitor_interface(drv);
0915d02c
JM		 4994 return -1;
4995}
4996
db149ac9 4997
5fb1a232 4998#ifdef CONFIG_AP
f10bfc9a
JM		 4999static int nl80211_send_eapol_data(struct i802_bss *bss,
5000 const u8 *addr, const u8 *data,
5001 size_t data_len, const u8 *own_addr)
5002{
5003 if (bss->drv->l2 == NULL) {
5004 wpa_printf(MSG_DEBUG, "nl80211: No l2_packet to send EAPOL");
5005 return -1;
5006 }
5007
5008 if (l2_packet_send(bss->drv->l2, addr, ETH_P_EAPOL, data, data_len) <
5009 0)
5010 return -1;
5011 return 0;
5012}
5fb1a232
JM		 5013#endif /* CONFIG_AP */
5014
f10bfc9a 5015
db149ac9
JM		 5016static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
5017
5018static int wpa_driver_nl80211_hapd_send_eapol(
5019 void *priv, const u8 *addr, const u8 *data,
4378fc14 5020 size_t data_len, int encrypt, const u8 *own_addr, u32 flags)
db149ac9 5021{
a2e40bb6
FF		 5022 struct i802_bss *bss = priv;
5023 struct wpa_driver_nl80211_data *drv = bss->drv;
db149ac9
JM		 5024 struct ieee80211_hdr *hdr;
5025 size_t len;
5026 u8 *pos;
5027 int res;
4378fc14 5028 int qos = flags & WPA_STA_WMM;
db149ac9 5029
5fb1a232 5030#ifdef CONFIG_AP
f10bfc9a
JM		 5031 if (drv->no_monitor_iface_capab)
5032 return nl80211_send_eapol_data(bss, addr, data, data_len,
5033 own_addr);
5fb1a232 5034#endif /* CONFIG_AP */
f10bfc9a 5035
db149ac9
JM		 5036 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 +
5037 data_len;
5038 hdr = os_zalloc(len);
5039 if (hdr == NULL) {
5040 printf("malloc() failed for i802_send_data(len=%lu)\n",
5041 (unsigned long) len);
5042 return -1;
5043 }
5044
5045 hdr->frame_control =
5046 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA);
5047 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS);
5048 if (encrypt)
5049 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP);
db149ac9
JM		 5050 if (qos) {
5051 hdr->frame_control |=
5052 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4);
5053 }
db149ac9
JM		 5054
5055 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN);
5056 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
5057 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
5058 pos = (u8 *) (hdr + 1);
5059
db149ac9
JM		 5060 if (qos) {
5061 /* add an empty QoS header if needed */
5062 pos[0] = 0;
5063 pos[1] = 0;
5064 pos += 2;
5065 }
db149ac9
JM		 5066
5067 memcpy(pos, rfc1042_header, sizeof(rfc1042_header));
5068 pos += sizeof(rfc1042_header);
5069 WPA_PUT_BE16(pos, ETH_P_PAE);
5070 pos += 2;
5071 memcpy(pos, data, data_len);
5072
5073 res = wpa_driver_nl80211_send_frame(drv, (u8 *) hdr, len, encrypt);
5074 if (res < 0) {
5075 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - "
5076 "failed: %d (%s)",
5077 (unsigned long) len, errno, strerror(errno));
5078 }
7bf12757 5079 os_free(hdr);
db149ac9
JM		 5080
5081 return res;
5082}
5083
a8d6ffa4 5084
3234cba4
JM		 5085static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr,
5086 int total_flags,
4c32757d 5087 int flags_or, int flags_and)
a8d6ffa4 5088{
a2e40bb6
FF		 5089 struct i802_bss *bss = priv;
5090 struct wpa_driver_nl80211_data *drv = bss->drv;
a8d6ffa4 5091 struct nl_msg *msg, *flags = NULL;
7e76ee9c 5092 struct nl80211_sta_flag_update upd;
a8d6ffa4
JM		 5093
5094 msg = nlmsg_alloc();
5095 if (!msg)
5096 return -ENOMEM;
5097
5098 flags = nlmsg_alloc();
5099 if (!flags) {
5100 nlmsg_free(msg);
5101 return -ENOMEM;
5102 }
5103
9fb04070 5104 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
a8d6ffa4
JM		 5105
5106 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
3234cba4 5107 if_nametoindex(bss->ifname));
a8d6ffa4
JM		 5108 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5109
7e76ee9c
JM		 5110 /*
5111 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This
5112 * can be removed eventually.
5113 */
0de39516 5114 if (total_flags & WPA_STA_AUTHORIZED)
a8d6ffa4
JM		 5115 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_AUTHORIZED);
5116
0de39516 5117 if (total_flags & WPA_STA_WMM)
a8d6ffa4
JM		 5118 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_WME);
5119
0de39516 5120 if (total_flags & WPA_STA_SHORT_PREAMBLE)
a8d6ffa4
JM		 5121 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_SHORT_PREAMBLE);
5122
0de39516 5123 if (total_flags & WPA_STA_MFP)
a8d6ffa4
JM		 5124 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_MFP);
5125
5126 if (nla_put_nested(msg, NL80211_ATTR_STA_FLAGS, flags))
5127 goto nla_put_failure;
5128
7e76ee9c
JM		 5129 os_memset(&upd, 0, sizeof(upd));
5130 upd.mask = sta_flags_nl80211(flags_or | ~flags_and);
5131 upd.set = sta_flags_nl80211(flags_or);
5132 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
5133
a8d6ffa4
JM		 5134 nlmsg_free(flags);
5135
5136 return send_and_recv_msgs(drv, msg, NULL, NULL);
5137 nla_put_failure:
5138 nlmsg_free(flags);
5139 return -ENOBUFS;
5140}
5141
0915d02c 5142
1581b38b
JM		 5143static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv,
5144 struct wpa_driver_associate_params *params)
5145{
b1f625e0
EP		 5146 enum nl80211_iftype nlmode;
5147
5148 if (params->p2p) {
046b26a2
JM		 5149 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P "
5150 "group (GO)");
b1f625e0
EP		 5151 nlmode = NL80211_IFTYPE_P2P_GO;
5152 } else
5153 nlmode = NL80211_IFTYPE_AP;
5154
5155 if (wpa_driver_nl80211_set_mode(&drv->first_bss, nlmode) ||
f019981a 5156 wpa_driver_nl80211_set_freq(drv, params->freq, 0, 0)) {
460456f8 5157 nl80211_remove_monitor_interface(drv);
1581b38b 5158 return -1;
0915d02c 5159 }
1581b38b 5160
86957e62
JM		 5161 if (drv->no_monitor_iface_capab) {
5162 if (wpa_driver_nl80211_probe_req_report(&drv->first_bss, 1) < 0)
5163 {
5164 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable "
5165 "Probe Request frame reporting in AP mode");
5166 /* Try to survive without this */
5167 }
5168 }
5169
5170 drv->ap_oper_freq = params->freq;
1581b38b
JM		 5171
5172 return 0;
5173}
1581b38b
JM		 5174
5175
5cc4d64b
JM		 5176static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv)
5177{
5178 struct nl_msg *msg;
5179 int ret = -1;
5180
5181 msg = nlmsg_alloc();
5182 if (!msg)
5183 return -1;
5184
9fb04070 5185 nl80211_cmd(drv, msg, 0, NL80211_CMD_LEAVE_IBSS);
5cc4d64b
JM		 5186 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5187 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5188 msg = NULL;
5189 if (ret) {
5190 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d "
5191 "(%s)", ret, strerror(-ret));
5192 goto nla_put_failure;
5193 }
5194
5195 ret = 0;
5196 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully");
5197
5198nla_put_failure:
5199 nlmsg_free(msg);
5200 return ret;
5201}
5202
5203
5204static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv,
5205 struct wpa_driver_associate_params *params)
5206{
5207 struct nl_msg *msg;
5208 int ret = -1;
5209 int count = 0;
5210
5211 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex);
5212
b1f625e0
EP		 5213 if (wpa_driver_nl80211_set_mode(&drv->first_bss,
5214 NL80211_IFTYPE_ADHOC)) {
5cc4d64b
JM		 5215 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into "
5216 "IBSS mode");
5217 return -1;
5218 }
5219
5220retry:
5221 msg = nlmsg_alloc();
5222 if (!msg)
5223 return -1;
5224
9fb04070 5225 nl80211_cmd(drv, msg, 0, NL80211_CMD_JOIN_IBSS);
5cc4d64b
JM		 5226 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5227
5228 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid))
5229 goto nla_put_failure;
5230
5231 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
5232 params->ssid, params->ssid_len);
5233 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
5234 params->ssid);
5235 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
5236 drv->ssid_len = params->ssid_len;
5237
5238 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
5239 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
5240
5241 ret = nl80211_set_conn_keys(params, msg);
5242 if (ret)
5243 goto nla_put_failure;
5244
a95795ad
JM		 5245 if (params->wpa_ie) {
5246 wpa_hexdump(MSG_DEBUG,
5247 " * Extra IEs for Beacon/Probe Response frames",
5248 params->wpa_ie, params->wpa_ie_len);
5249 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
5250 params->wpa_ie);
5251 }
5252
5cc4d64b
JM		 5253 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5254 msg = NULL;
5255 if (ret) {
5256 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)",
5257 ret, strerror(-ret));
5258 count++;
5259 if (ret == -EALREADY && count == 1) {
5260 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after "
5261 "forced leave");
5262 nl80211_leave_ibss(drv);
5263 nlmsg_free(msg);
5264 goto retry;
5265 }
5266
5267 goto nla_put_failure;
5268 }
5269 ret = 0;
5270 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully");
5271
5272nla_put_failure:
5273 nlmsg_free(msg);
5274 return ret;
5275}
5276
5277
20f5a4c2
JM		 5278static unsigned int nl80211_get_assoc_bssid(struct wpa_driver_nl80211_data *drv,
5279 u8 *bssid)
5280{
5281 struct nl_msg *msg;
5282 int ret;
5283 struct nl80211_bss_info_arg arg;
5284
5285 os_memset(&arg, 0, sizeof(arg));
5286 msg = nlmsg_alloc();
5287 if (!msg)
5288 goto nla_put_failure;
5289
9fb04070 5290 nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_SCAN);
20f5a4c2
JM		 5291 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5292
5293 arg.drv = drv;
5294 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
5295 msg = NULL;
5296 if (ret == 0) {
5297 if (is_zero_ether_addr(arg.assoc_bssid))
5298 return -ENOTCONN;
5299 os_memcpy(bssid, arg.assoc_bssid, ETH_ALEN);
5300 return 0;
5301 }
5302 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
5303 "(%s)", ret, strerror(-ret));
5304nla_put_failure:
5305 nlmsg_free(msg);
5306 return drv->assoc_freq;
5307}
5308
5309
5310static int nl80211_disconnect(struct wpa_driver_nl80211_data *drv,
5311 const u8 *bssid)
5312{
5313 u8 addr[ETH_ALEN];
5314
5315 if (bssid == NULL) {
5316 int res = nl80211_get_assoc_bssid(drv, addr);
5317 if (res)
5318 return res;
5319 bssid = addr;
5320 }
5321
5322 return wpa_driver_nl80211_disconnect(drv, bssid,
5323 WLAN_REASON_PREV_AUTH_NOT_VALID);
5324}
5325
5326
cfaab580
ZY		 5327static int wpa_driver_nl80211_connect(
5328 struct wpa_driver_nl80211_data *drv,
5329 struct wpa_driver_associate_params *params)
5330{
5331 struct nl_msg *msg;
5332 enum nl80211_auth_type type;
5333 int ret = 0;
3f360238 5334 int algs;
cfaab580
ZY		 5335
5336 msg = nlmsg_alloc();
5337 if (!msg)
5338 return -1;
5339
5340 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex);
9fb04070 5341 nl80211_cmd(drv, msg, 0, NL80211_CMD_CONNECT);
cfaab580
ZY		 5342
5343 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5344 if (params->bssid) {
5345 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
5346 MAC2STR(params->bssid));
5347 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
5348 }
5349 if (params->freq) {
5350 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
5351 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
5352 }
5353 if (params->ssid) {
5354 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
5355 params->ssid, params->ssid_len);
5356 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
5357 params->ssid);
5358 if (params->ssid_len > sizeof(drv->ssid))
5359 goto nla_put_failure;
5360 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
5361 drv->ssid_len = params->ssid_len;
5362 }
5363 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
5364 if (params->wpa_ie)
5365 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
5366 params->wpa_ie);
5367
3f360238
JM		 5368 algs = 0;
5369 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
5370 algs++;
5371 if (params->auth_alg & WPA_AUTH_ALG_SHARED)
5372 algs++;
5373 if (params->auth_alg & WPA_AUTH_ALG_LEAP)
5374 algs++;
5375 if (algs > 1) {
5376 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic "
5377 "selection");
5378 goto skip_auth_type;
5379 }
5380
abd9fafa 5381 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
cfaab580 5382 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
abd9fafa 5383 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
cfaab580 5384 type = NL80211_AUTHTYPE_SHARED_KEY;
abd9fafa 5385 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
cfaab580 5386 type = NL80211_AUTHTYPE_NETWORK_EAP;
abd9fafa 5387 else if (params->auth_alg & WPA_AUTH_ALG_FT)
cfaab580
ZY		 5388 type = NL80211_AUTHTYPE_FT;
5389 else
5390 goto nla_put_failure;
5391
5392 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
5393 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
5394
3f360238 5395skip_auth_type:
64fa840a
JM		 5396 if (params->wpa_proto) {
5397 enum nl80211_wpa_versions ver = 0;
cfaab580 5398
64fa840a
JM		 5399 if (params->wpa_proto & WPA_PROTO_WPA)
5400 ver |= NL80211_WPA_VERSION_1;
5401 if (params->wpa_proto & WPA_PROTO_RSN)
5402 ver |= NL80211_WPA_VERSION_2;
cfaab580 5403
64fa840a 5404 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver);
cfaab580
ZY		 5405 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
5406 }
5407
5408 if (params->pairwise_suite != CIPHER_NONE) {
c1bb3e0a 5409 int cipher;
cfaab580
ZY		 5410
5411 switch (params->pairwise_suite) {
5412 case CIPHER_WEP40:
5413 cipher = WLAN_CIPHER_SUITE_WEP40;
5414 break;
5415 case CIPHER_WEP104:
5416 cipher = WLAN_CIPHER_SUITE_WEP104;
5417 break;
5418 case CIPHER_CCMP:
5419 cipher = WLAN_CIPHER_SUITE_CCMP;
5420 break;
5421 case CIPHER_TKIP:
5422 default:
5423 cipher = WLAN_CIPHER_SUITE_TKIP;
5424 break;
5425 }
5426 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
5427 }
5428
5429 if (params->group_suite != CIPHER_NONE) {
c1bb3e0a 5430 int cipher;
cfaab580
ZY		 5431
5432 switch (params->group_suite) {
5433 case CIPHER_WEP40:
5434 cipher = WLAN_CIPHER_SUITE_WEP40;
5435 break;
5436 case CIPHER_WEP104:
5437 cipher = WLAN_CIPHER_SUITE_WEP104;
5438 break;
5439 case CIPHER_CCMP:
5440 cipher = WLAN_CIPHER_SUITE_CCMP;
5441 break;
5442 case CIPHER_TKIP:
5443 default:
5444 cipher = WLAN_CIPHER_SUITE_TKIP;
5445 break;
5446 }
5447 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
5448 }
5449
5450 if (params->key_mgmt_suite == KEY_MGMT_802_1X ||
5451 params->key_mgmt_suite == KEY_MGMT_PSK) {
5452 int mgmt = WLAN_AKM_SUITE_PSK;
5453
5454 switch (params->key_mgmt_suite) {
5455 case KEY_MGMT_802_1X:
5456 mgmt = WLAN_AKM_SUITE_8021X;
5457 break;
5458 case KEY_MGMT_PSK:
5459 default:
5460 mgmt = WLAN_AKM_SUITE_PSK;
5461 break;
5462 }
5463 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt);
5464 }
5465
5466 ret = nl80211_set_conn_keys(params, msg);
5467 if (ret)
5468 goto nla_put_failure;
5469
5470 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5471 msg = NULL;
5472 if (ret) {
5473 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d "
5474 "(%s)", ret, strerror(-ret));
20f5a4c2
JM		 5475 /*
5476 * cfg80211 does not currently accept new connection if we are
5477 * already connected. As a workaround, force disconnection and
5478 * try again once the driver indicates it completed
5479 * disconnection.
5480 */
5481 if (ret == -EALREADY)
5482 nl80211_disconnect(drv, params->bssid);
cfaab580
ZY		 5483 goto nla_put_failure;
5484 }
5485 ret = 0;
5486 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully");
5487
5488nla_put_failure:
5489 nlmsg_free(msg);
5490 return ret;
5491
5492}
5493
5494
c2a04078
JM		 5495static int wpa_driver_nl80211_associate(
5496 void *priv, struct wpa_driver_associate_params *params)
5497{
a2e40bb6
FF		 5498 struct i802_bss *bss = priv;
5499 struct wpa_driver_nl80211_data *drv = bss->drv;
c2a04078
JM		 5500 int ret = -1;
5501 struct nl_msg *msg;
5502
5cc4d64b 5503 if (params->mode == IEEE80211_MODE_AP)
1581b38b 5504 return wpa_driver_nl80211_ap(drv, params);
1581b38b 5505
5cc4d64b
JM		 5506 if (params->mode == IEEE80211_MODE_IBSS)
5507 return wpa_driver_nl80211_ibss(drv, params);
5508
4a867032 5509 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) {
b1f625e0
EP		 5510 enum nl80211_iftype nlmode = params->p2p ?
5511 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
5512
5513 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0)
4a867032 5514 return -1;
cfaab580 5515 return wpa_driver_nl80211_connect(drv, params);
4a867032 5516 }
cfaab580 5517
c2a04078
JM		 5518 drv->associated = 0;
5519
5520 msg = nlmsg_alloc();
5521 if (!msg)
5522 return -1;
5523
5524 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)",
5525 drv->ifindex);
9fb04070 5526 nl80211_cmd(drv, msg, 0, NL80211_CMD_ASSOCIATE);
c2a04078
JM		 5527
5528 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5529 if (params->bssid) {
5530 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
5531 MAC2STR(params->bssid));
5532 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
5533 }
5534 if (params->freq) {
5535 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
5536 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
4832ecd7
JM		 5537 drv->assoc_freq = params->freq;
5538 } else
5539 drv->assoc_freq = 0;
c2a04078
JM		 5540 if (params->ssid) {
5541 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
5542 params->ssid, params->ssid_len);
5543 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
5544 params->ssid);
fd05d64e
JM		 5545 if (params->ssid_len > sizeof(drv->ssid))
5546 goto nla_put_failure;
5547 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
5548 drv->ssid_len = params->ssid_len;
c2a04078
JM		 5549 }
5550 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
5551 if (params->wpa_ie)
5552 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
5553 params->wpa_ie);
5554
aca01605
JM		 5555 if (params->pairwise_suite != CIPHER_NONE) {
5556 int cipher;
5557
5558 switch (params->pairwise_suite) {
5559 case CIPHER_WEP40:
5560 cipher = WLAN_CIPHER_SUITE_WEP40;
5561 break;
5562 case CIPHER_WEP104:
5563 cipher = WLAN_CIPHER_SUITE_WEP104;
5564 break;
5565 case CIPHER_CCMP:
5566 cipher = WLAN_CIPHER_SUITE_CCMP;
5567 break;
5568 case CIPHER_TKIP:
5569 default:
5570 cipher = WLAN_CIPHER_SUITE_TKIP;
5571 break;
5572 }
79c3124c 5573 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher);
aca01605
JM		 5574 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
5575 }
5576
5577 if (params->group_suite != CIPHER_NONE) {
5578 int cipher;
5579
5580 switch (params->group_suite) {
5581 case CIPHER_WEP40:
5582 cipher = WLAN_CIPHER_SUITE_WEP40;
5583 break;
5584 case CIPHER_WEP104:
5585 cipher = WLAN_CIPHER_SUITE_WEP104;
5586 break;
5587 case CIPHER_CCMP:
5588 cipher = WLAN_CIPHER_SUITE_CCMP;
5589 break;
5590 case CIPHER_TKIP:
5591 default:
5592 cipher = WLAN_CIPHER_SUITE_TKIP;
5593 break;
5594 }
79c3124c 5595 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher);
aca01605
JM		 5596 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
5597 }
5598
e572fa33
JM		 5599#ifdef CONFIG_IEEE80211W
5600 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED)
5601 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED);
5602#endif /* CONFIG_IEEE80211W */
5603
01652550
JM		 5604 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
5605
62fa124c
JM		 5606 if (params->prev_bssid) {
5607 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR,
5608 MAC2STR(params->prev_bssid));
5609 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN,
5610 params->prev_bssid);
5611 }
5612
046b26a2
JM		 5613 if (params->p2p)
5614 wpa_printf(MSG_DEBUG, " * P2P group");
5615
c2a04078
JM		 5616 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5617 msg = NULL;
5618 if (ret) {
5619 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
5620 "(%s)", ret, strerror(-ret));
8856462d 5621 nl80211_dump_scan(drv);
c2a04078
JM		 5622 goto nla_put_failure;
5623 }
5624 ret = 0;
5625 wpa_printf(MSG_DEBUG, "nl80211: Association request send "
5626 "successfully");
5627
5628nla_put_failure:
5629 nlmsg_free(msg);
5630 return ret;
5631}
3f5285e8
JM		 5632
5633
ad1e68e6 5634static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv,
a1922f93 5635 int ifindex, enum nl80211_iftype mode)
3f5285e8 5636{
3f5285e8 5637 struct nl_msg *msg;
ad1e68e6
JM		 5638 int ret = -ENOBUFS;
5639
a1922f93
JM		 5640 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)",
5641 ifindex, mode, nl80211_iftype_str(mode));
5642
ad1e68e6
JM		 5643 msg = nlmsg_alloc();
5644 if (!msg)
5645 return -ENOMEM;
5646
9fb04070 5647 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_INTERFACE);
ad1e68e6
JM		 5648 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
5649 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode);
5650
5651 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5652 if (!ret)
5653 return 0;
5654nla_put_failure:
5655 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:"
5656 " %d (%s)", ifindex, mode, ret, strerror(-ret));
5657 return ret;
5658}
5659
5660
b1f625e0
EP		 5661static int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
5662 enum nl80211_iftype nlmode)
ad1e68e6 5663{
a2e40bb6 5664 struct wpa_driver_nl80211_data *drv = bss->drv;
ad1e68e6 5665 int ret = -1;
26af9dca 5666 int i;
86957e62 5667 int was_ap = is_ap_interface(drv->nlmode);
1581b38b 5668
ad1e68e6
JM		 5669 if (nl80211_set_mode(drv, drv->ifindex, nlmode) == 0) {
5670 drv->nlmode = nlmode;
460456f8
JM		 5671 ret = 0;
5672 goto done;
ad1e68e6 5673 }
3f5285e8 5674
460456f8 5675 if (nlmode == drv->nlmode) {
c6e8e8e4
JM		 5676 wpa_printf(MSG_DEBUG, "nl80211: Interface already in "
5677 "requested mode - ignore error");
460456f8
JM		 5678 ret = 0;
5679 goto done; /* Already in the requested mode */
5680 }
3f5285e8 5681
3f5285e8
JM		 5682 /* mac80211 doesn't allow mode changes while the device is up, so
5683 * take the device down, try to set the mode again, and bring the
5684 * device back up.
5685 */
26af9dca
JM		 5686 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting "
5687 "interface down");
5688 for (i = 0; i < 10; i++) {
6e8183d7
JM		 5689 int res;
5690 res = linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 0);
5691 if (res == -EACCES || res == -ENODEV)
5692 break;
5693 if (res == 0) {
26af9dca
JM		 5694 /* Try to set the mode again while the interface is
5695 * down */
5696 ret = nl80211_set_mode(drv, drv->ifindex, nlmode);
6e8183d7
JM		 5697 if (ret == -EACCES)
5698 break;
5699 res = linux_set_iface_flags(drv->ioctl_sock,
5700 bss->ifname, 1);
5701 if (res && !ret)
26af9dca 5702 ret = -1;
6e8183d7 5703 else if (ret != -EBUSY)
26af9dca
JM		 5704 break;
5705 } else
5706 wpa_printf(MSG_DEBUG, "nl80211: Failed to set "
5707 "interface down");
5708 os_sleep(0, 100000);
3f5285e8
JM		 5709 }
5710
c6e8e8e4
JM		 5711 if (!ret) {
5712 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while "
5713 "interface is down");
ad1e68e6 5714 drv->nlmode = nlmode;
7d9c3698 5715 drv->ignore_if_down_event = 1;
c6e8e8e4 5716 }
ad1e68e6 5717
460456f8 5718done:
b1f625e0 5719 if (!ret && is_ap_interface(nlmode)) {
460456f8 5720 /* Setup additional AP mode functionality if needed */
866af8b6
JM		 5721 if (!drv->no_monitor_iface_capab && drv->monitor_ifidx < 0 &&
5722 nl80211_create_monitor_interface(drv) &&
5723 !drv->no_monitor_iface_capab)
460456f8 5724 return -1;
b1f625e0 5725 } else if (!ret && !is_ap_interface(nlmode)) {
460456f8 5726 /* Remove additional AP mode functionality */
86957e62
JM		 5727 if (was_ap && drv->no_monitor_iface_capab)
5728 wpa_driver_nl80211_probe_req_report(bss, 0);
460456f8 5729 nl80211_remove_monitor_interface(drv);
a2e40bb6 5730 bss->beacon_set = 0;
460456f8 5731 }
460456f8 5732
c6e8e8e4
JM		 5733 if (ret)
5734 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d "
5735 "from %d failed", nlmode, drv->nlmode);
5736
3f5285e8
JM		 5737 return ret;
5738}
5739
5740
3f5285e8
JM		 5741static int wpa_driver_nl80211_get_capa(void *priv,
5742 struct wpa_driver_capa *capa)
5743{
a2e40bb6
FF		 5744 struct i802_bss *bss = priv;
5745 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8
JM		 5746 if (!drv->has_capability)
5747 return -1;
5748 os_memcpy(capa, &drv->capa, sizeof(*capa));
5749 return 0;
5750}
5751
5752
5753static int wpa_driver_nl80211_set_operstate(void *priv, int state)
5754{
a2e40bb6
FF		 5755 struct i802_bss *bss = priv;
5756 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8
JM		 5757
5758 wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)",
5759 __func__, drv->operstate, state, state ? "UP" : "DORMANT");
5760 drv->operstate = state;
08063178 5761 return netlink_send_oper_ifla(drv->netlink, drv->ifindex, -1,
e2d02c29 5762 state ? IF_OPER_UP : IF_OPER_DORMANT);
3f5285e8
JM		 5763}
5764
01652550
JM		 5765
5766static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized)
5767{
a2e40bb6
FF		 5768 struct i802_bss *bss = priv;
5769 struct wpa_driver_nl80211_data *drv = bss->drv;
01652550
JM		 5770 struct nl_msg *msg;
5771 struct nl80211_sta_flag_update upd;
5772
5773 msg = nlmsg_alloc();
5774 if (!msg)
5775 return -ENOMEM;
5776
9fb04070 5777 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
01652550
JM		 5778
5779 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 5780 if_nametoindex(bss->ifname));
01652550
JM		 5781 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
5782
5783 os_memset(&upd, 0, sizeof(upd));
5784 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED);
5785 if (authorized)
5786 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED);
5787 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
5788
5789 return send_and_recv_msgs(drv, msg, NULL, NULL);
5790 nla_put_failure:
5791 return -ENOBUFS;
5792}
5793
3f5285e8 5794
f07ead6a
JM		 5795/* Set kernel driver on given frequency (MHz) */
5796static int i802_set_freq(void *priv, struct hostapd_freq_params *freq)
c5121837 5797{
f07ead6a
JM		 5798 struct i802_bss *bss = priv;
5799 struct wpa_driver_nl80211_data *drv = bss->drv;
5800 return wpa_driver_nl80211_set_freq(drv, freq->freq, freq->ht_enabled,
5801 freq->sec_channel_offset);
c5121837
JM		 5802}
5803
f7b3920c
JM		 5804
5805#if defined(HOSTAPD) || defined(CONFIG_AP)
c5121837 5806
c5121837
JM		 5807static inline int min_int(int a, int b)
5808{
5809 if (a < b)
5810 return a;
5811 return b;
5812}
5813
5814
5815static int get_key_handler(struct nl_msg *msg, void *arg)
5816{
5817 struct nlattr *tb[NL80211_ATTR_MAX + 1];
5818 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
5819
5820 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
5821 genlmsg_attrlen(gnlh, 0), NULL);
5822
5823 /*
5824 * TODO: validate the key index and mac address!
5825 * Otherwise, there's a race condition as soon as
5826 * the kernel starts sending key notifications.
5827 */
5828
5829 if (tb[NL80211_ATTR_KEY_SEQ])
5830 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]),
5831 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6));
5832 return NL_SKIP;
5833}
5834
5835
5836static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
5837 int idx, u8 *seq)
5838{
a2e40bb6
FF		 5839 struct i802_bss *bss = priv;
5840 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 5841 struct nl_msg *msg;
5842
5843 msg = nlmsg_alloc();
5844 if (!msg)
5845 return -ENOMEM;
5846
9fb04070 5847 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_KEY);
c5121837
JM		 5848
5849 if (addr)
5850 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5851 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
5852 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
5853
5854 memset(seq, 0, 6);
5855
5856 return send_and_recv_msgs(drv, msg, get_key_handler, seq);
5857 nla_put_failure:
5858 return -ENOBUFS;
5859}
5860
5861
5862static int i802_set_rate_sets(void *priv, int *supp_rates, int *basic_rates,
5863 int mode)
5864{
a2e40bb6
FF		 5865 struct i802_bss *bss = priv;
5866 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 5867 struct nl_msg *msg;
5868 u8 rates[NL80211_MAX_SUPP_RATES];
5869 u8 rates_len = 0;
5870 int i;
5871
5872 msg = nlmsg_alloc();
5873 if (!msg)
5874 return -ENOMEM;
5875
9fb04070 5876 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_BSS);
c5121837
JM		 5877
5878 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; i++)
5879 rates[rates_len++] = basic_rates[i] / 5;
5880
5881 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates);
5882
a2e40bb6 5883 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
c5121837
JM		 5884
5885 return send_and_recv_msgs(drv, msg, NULL, NULL);
5886 nla_put_failure:
5887 return -ENOBUFS;
5888}
5889
e3802622 5890
c5121837
JM		 5891static int i802_set_rts(void *priv, int rts)
5892{
a2e40bb6
FF		 5893 struct i802_bss *bss = priv;
5894 struct wpa_driver_nl80211_data *drv = bss->drv;
ad649451
JM		 5895 struct nl_msg *msg;
5896 int ret = -ENOBUFS;
5897 u32 val;
c5121837 5898
ad649451
JM		 5899 msg = nlmsg_alloc();
5900 if (!msg)
5901 return -ENOMEM;
c5121837 5902
ad649451
JM		 5903 if (rts >= 2347)
5904 val = (u32) -1;
5905 else
5906 val = rts;
c5121837 5907
9fb04070 5908 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
ad649451
JM		 5909 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5910 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val);
5911
5912 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5913 if (!ret)
5914 return 0;
5915nla_put_failure:
5916 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: "
5917 "%d (%s)", rts, ret, strerror(-ret));
5918 return ret;
c5121837
JM		 5919}
5920
5921
5922static int i802_set_frag(void *priv, int frag)
5923{
a2e40bb6
FF		 5924 struct i802_bss *bss = priv;
5925 struct wpa_driver_nl80211_data *drv = bss->drv;
ad649451
JM		 5926 struct nl_msg *msg;
5927 int ret = -ENOBUFS;
5928 u32 val;
c5121837 5929
ad649451
JM		 5930 msg = nlmsg_alloc();
5931 if (!msg)
5932 return -ENOMEM;
c5121837 5933
ad649451
JM		 5934 if (frag >= 2346)
5935 val = (u32) -1;
5936 else
5937 val = frag;
c5121837 5938
9fb04070 5939 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
ad649451
JM		 5940 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5941 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val);
5942
5943 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5944 if (!ret)
5945 return 0;
5946nla_put_failure:
5947 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold "
5948 "%d: %d (%s)", frag, ret, strerror(-ret));
5949 return ret;
c5121837
JM		 5950}
5951
5952
c5121837
JM		 5953static int i802_flush(void *priv)
5954{
a2e40bb6
FF		 5955 struct i802_bss *bss = priv;
5956 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 5957 struct nl_msg *msg;
5958
5959 msg = nlmsg_alloc();
5960 if (!msg)
5961 return -1;
5962
9fb04070 5963 nl80211_cmd(drv, msg, 0, NL80211_CMD_DEL_STATION);
c5121837
JM		 5964
5965 /*
5966 * XXX: FIX! this needs to flush all VLANs too
5967 */
5968 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 5969 if_nametoindex(bss->ifname));
c5121837
JM		 5970
5971 return send_and_recv_msgs(drv, msg, NULL, NULL);
5972 nla_put_failure:
5973 return -ENOBUFS;
5974}
5975
5976
5977static int get_sta_handler(struct nl_msg *msg, void *arg)
5978{
5979 struct nlattr *tb[NL80211_ATTR_MAX + 1];
5980 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
5981 struct hostap_sta_driver_data *data = arg;
5982 struct nlattr *stats[NL80211_STA_INFO_MAX + 1];
5983 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
5984 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
5985 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
5986 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
5987 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
5988 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
5989 };
5990
5991 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
5992 genlmsg_attrlen(gnlh, 0), NULL);
5993
5994 /*
5995 * TODO: validate the interface and mac address!
5996 * Otherwise, there's a race condition as soon as
5997 * the kernel starts sending station notifications.
5998 */
5999
6000 if (!tb[NL80211_ATTR_STA_INFO]) {
6001 wpa_printf(MSG_DEBUG, "sta stats missing!");
6002 return NL_SKIP;
6003 }
6004 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX,
6005 tb[NL80211_ATTR_STA_INFO],
6006 stats_policy)) {
6007 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!");
6008 return NL_SKIP;
6009 }
6010
6011 if (stats[NL80211_STA_INFO_INACTIVE_TIME])
6012 data->inactive_msec =
6013 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]);
6014 if (stats[NL80211_STA_INFO_RX_BYTES])
6015 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]);
6016 if (stats[NL80211_STA_INFO_TX_BYTES])
6017 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]);
6018 if (stats[NL80211_STA_INFO_RX_PACKETS])
6019 data->rx_packets =
6020 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]);
6021 if (stats[NL80211_STA_INFO_TX_PACKETS])
6022 data->tx_packets =
6023 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]);
6024
6025 return NL_SKIP;
6026}
6027
6028static int i802_read_sta_data(void *priv, struct hostap_sta_driver_data *data,
6029 const u8 *addr)
6030{
a2e40bb6
FF		 6031 struct i802_bss *bss = priv;
6032 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 6033 struct nl_msg *msg;
6034
6035 os_memset(data, 0, sizeof(*data));
6036 msg = nlmsg_alloc();
6037 if (!msg)
6038 return -ENOMEM;
6039
9fb04070 6040 nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_STATION);
c5121837
JM		 6041
6042 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
a2e40bb6 6043 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
c5121837
JM		 6044
6045 return send_and_recv_msgs(drv, msg, get_sta_handler, data);
6046 nla_put_failure:
6047 return -ENOBUFS;
6048}
6049
6050
c5121837
JM		 6051static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
6052 int cw_min, int cw_max, int burst_time)
6053{
a2e40bb6
FF		 6054 struct i802_bss *bss = priv;
6055 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 6056 struct nl_msg *msg;
6057 struct nlattr *txq, *params;
6058
6059 msg = nlmsg_alloc();
6060 if (!msg)
6061 return -1;
6062
9fb04070 6063 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_WIPHY);
c5121837 6064
a2e40bb6 6065 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
c5121837
JM		 6066
6067 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS);
6068 if (!txq)
6069 goto nla_put_failure;
6070
6071 /* We are only sending parameters for a single TXQ at a time */
6072 params = nla_nest_start(msg, 1);
6073 if (!params)
6074 goto nla_put_failure;
6075
7e3c1781
JM		 6076 switch (queue) {
6077 case 0:
6078 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO);
6079 break;
6080 case 1:
6081 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI);
6082 break;
6083 case 2:
6084 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE);
6085 break;
6086 case 3:
6087 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK);
6088 break;
6089 }
c5121837
JM		 6090 /* Burst time is configured in units of 0.1 msec and TXOP parameter in
6091 * 32 usec, so need to convert the value here. */
6092 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32);
6093 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min);
6094 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max);
6095 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs);
6096
6097 nla_nest_end(msg, params);
6098
6099 nla_nest_end(msg, txq);
6100
6101 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
6102 return 0;
6103 nla_put_failure:
6104 return -1;
6105}
6106
6107
c5121837
JM		 6108static int i802_set_sta_vlan(void *priv, const u8 *addr,
6109 const char *ifname, int vlan_id)
6110{
a2e40bb6
FF		 6111 struct i802_bss *bss = priv;
6112 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837 6113 struct nl_msg *msg;
cd1d72c1 6114 int ret = -ENOBUFS;
c5121837
JM		 6115
6116 msg = nlmsg_alloc();
6117 if (!msg)
6118 return -ENOMEM;
6119
9fb04070 6120 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_STATION);
c5121837
JM		 6121
6122 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 6123 if_nametoindex(bss->ifname));
c5121837 6124 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
1c766b09 6125 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN,
c5121837
JM		 6126 if_nametoindex(ifname));
6127
cd1d72c1
JM		 6128 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6129 if (ret < 0) {
6130 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr="
6131 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)",
6132 MAC2STR(addr), ifname, vlan_id, ret,
6133 strerror(-ret));
6134 }
c5121837 6135 nla_put_failure:
cd1d72c1 6136 return ret;
c5121837
JM		 6137}
6138
fbbfcbac 6139
c5121837
JM		 6140static int i802_get_inact_sec(void *priv, const u8 *addr)
6141{
6142 struct hostap_sta_driver_data data;
6143 int ret;
6144
6145 data.inactive_msec = (unsigned long) -1;
6146 ret = i802_read_sta_data(priv, &data, addr);
6147 if (ret || data.inactive_msec == (unsigned long) -1)
6148 return -1;
6149 return data.inactive_msec / 1000;
6150}
6151
6152
6153static int i802_sta_clear_stats(void *priv, const u8 *addr)
6154{
6155#if 0
6156 /* TODO */
6157#endif
6158 return 0;
6159}
6160
6161
731723a5
JM		 6162static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
6163 int reason)
c5121837 6164{
a2e40bb6 6165 struct i802_bss *bss = priv;
c5121837
JM		 6166 struct ieee80211_mgmt mgmt;
6167
6168 memset(&mgmt, 0, sizeof(mgmt));
6169 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
6170 WLAN_FC_STYPE_DEAUTH);
6171 memcpy(mgmt.da, addr, ETH_ALEN);
731723a5
JM		 6172 memcpy(mgmt.sa, own_addr, ETH_ALEN);
6173 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
c5121837 6174 mgmt.u.deauth.reason_code = host_to_le16(reason);
a2e40bb6 6175 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
9f324b61
JM		 6176 IEEE80211_HDRLEN +
6177 sizeof(mgmt.u.deauth));
c5121837
JM		 6178}
6179
6180
731723a5
JM		 6181static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
6182 int reason)
c5121837 6183{
a2e40bb6 6184 struct i802_bss *bss = priv;
c5121837
JM		 6185 struct ieee80211_mgmt mgmt;
6186
6187 memset(&mgmt, 0, sizeof(mgmt));
6188 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
6189 WLAN_FC_STYPE_DISASSOC);
6190 memcpy(mgmt.da, addr, ETH_ALEN);
731723a5
JM		 6191 memcpy(mgmt.sa, own_addr, ETH_ALEN);
6192 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
c5121837 6193 mgmt.u.disassoc.reason_code = host_to_le16(reason);
a2e40bb6 6194 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
9f324b61
JM		 6195 IEEE80211_HDRLEN +
6196 sizeof(mgmt.u.disassoc));
c5121837
JM		 6197}
6198
ee7ab173
JB		 6199#endif /* HOSTAPD || CONFIG_AP */
6200
6201#ifdef HOSTAPD
c5121837 6202
f07ead6a
JM		 6203static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
6204{
6205 int i;
6206 int *old;
6207
6208 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d",
6209 ifidx);
6210 for (i = 0; i < drv->num_if_indices; i++) {
6211 if (drv->if_indices[i] == 0) {
6212 drv->if_indices[i] = ifidx;
6213 return;
6214 }
6215 }
6216
6217 if (drv->if_indices != drv->default_if_indices)
6218 old = drv->if_indices;
6219 else
6220 old = NULL;
6221
6222 drv->if_indices = os_realloc(old,
6223 sizeof(int) * (drv->num_if_indices + 1));
6224 if (!drv->if_indices) {
6225 if (!old)
6226 drv->if_indices = drv->default_if_indices;
6227 else
6228 drv->if_indices = old;
6229 wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
6230 "interfaces");
6231 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
6232 return;
6233 } else if (!old)
6234 os_memcpy(drv->if_indices, drv->default_if_indices,
6235 sizeof(drv->default_if_indices));
6236 drv->if_indices[drv->num_if_indices] = ifidx;
6237 drv->num_if_indices++;
6238}
6239
6240
6241static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
6242{
6243 int i;
6244
6245 for (i = 0; i < drv->num_if_indices; i++) {
6246 if (drv->if_indices[i] == ifidx) {
6247 drv->if_indices[i] = 0;
6248 break;
6249 }
6250 }
6251}
6252
6253
6254static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
6255{
6256 int i;
6257
6258 for (i = 0; i < drv->num_if_indices; i++)
6259 if (drv->if_indices[i] == ifidx)
6260 return 1;
6261
6262 return 0;
6263}
6264
6265
6266static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val,
6267 const char *bridge_ifname)
6268{
6269 struct i802_bss *bss = priv;
6270 struct wpa_driver_nl80211_data *drv = bss->drv;
6271 char name[IFNAMSIZ + 1];
6272
6273 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid);
6274 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR
6275 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name);
6276 if (val) {
6277 if (!if_nametoindex(name)) {
6278 if (nl80211_create_iface(drv, name,
6279 NL80211_IFTYPE_AP_VLAN,
6280 NULL, 1) < 0)
6281 return -1;
6282 if (bridge_ifname &&
6283 linux_br_add_if(drv->ioctl_sock, bridge_ifname,
6284 name) < 0)
6285 return -1;
6286 }
6287 linux_set_iface_flags(drv->ioctl_sock, name, 1);
6288 return i802_set_sta_vlan(priv, addr, name, 0);
6289 } else {
6290 i802_set_sta_vlan(priv, addr, bss->ifname, 0);
6291 return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN,
6292 name);
6293 }
6294}
6295
6296
6297static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
6298{
6299 struct wpa_driver_nl80211_data *drv = eloop_ctx;
6300 struct sockaddr_ll lladdr;
6301 unsigned char buf[3000];
6302 int len;
6303 socklen_t fromlen = sizeof(lladdr);
6304
6305 len = recvfrom(sock, buf, sizeof(buf), 0,
6306 (struct sockaddr *)&lladdr, &fromlen);
6307 if (len < 0) {
6308 perror("recv");
6309 return;
6310 }
6311
6312 if (have_ifidx(drv, lladdr.sll_ifindex))
6313 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len);
6314}
6315
6316
94627f6c 6317static int i802_check_bridge(struct wpa_driver_nl80211_data *drv,
e17a2477 6318 struct i802_bss *bss,
94627f6c
JM		 6319 const char *brname, const char *ifname)
6320{
6321 int ifindex;
6322 char in_br[IFNAMSIZ];
6323
e17a2477 6324 os_strlcpy(bss->brname, brname, IFNAMSIZ);
94627f6c
JM		 6325 ifindex = if_nametoindex(brname);
6326 if (ifindex == 0) {
6327 /*
6328 * Bridge was configured, but the bridge device does
6329 * not exist. Try to add it now.
6330 */
6331 if (linux_br_add(drv->ioctl_sock, brname) < 0) {
6332 wpa_printf(MSG_ERROR, "nl80211: Failed to add the "
6333 "bridge interface %s: %s",
6334 brname, strerror(errno));
6335 return -1;
6336 }
e17a2477 6337 bss->added_bridge = 1;
94627f6c
JM		 6338 add_ifidx(drv, if_nametoindex(brname));
6339 }
6340
6341 if (linux_br_get(in_br, ifname) == 0) {
6342 if (os_strcmp(in_br, brname) == 0)
6343 return 0; /* already in the bridge */
6344
6345 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from "
6346 "bridge %s", ifname, in_br);
6347 if (linux_br_del_if(drv->ioctl_sock, in_br, ifname) < 0) {
6348 wpa_printf(MSG_ERROR, "nl80211: Failed to "
6349 "remove interface %s from bridge "
6350 "%s: %s",
6351 ifname, brname, strerror(errno));
6352 return -1;
6353 }
6354 }
6355
6356 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s",
6357 ifname, brname);
6358 if (linux_br_add_if(drv->ioctl_sock, brname, ifname) < 0) {
6359 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s "
6360 "into bridge %s: %s",
6361 ifname, brname, strerror(errno));
6362 return -1;
6363 }
e17a2477 6364 bss->added_if_into_bridge = 1;
94627f6c
JM		 6365
6366 return 0;
6367}
6368
6369
92f475b4
JM		 6370static void *i802_init(struct hostapd_data *hapd,
6371 struct wpa_init_params *params)
c5121837
JM		 6372{
6373 struct wpa_driver_nl80211_data *drv;
a2e40bb6 6374 struct i802_bss *bss;
c5121837 6375 size_t i;
94627f6c
JM		 6376 char brname[IFNAMSIZ];
6377 int ifindex, br_ifindex;
6378 int br_added = 0;
c5121837 6379
f2ed8023 6380 bss = wpa_driver_nl80211_init(hapd, params->ifname, NULL);
a2e40bb6 6381 if (bss == NULL)
c5121837 6382 return NULL;
c5121837 6383
a2e40bb6 6384 drv = bss->drv;
0382097e 6385 drv->nlmode = NL80211_IFTYPE_AP;
94627f6c
JM		 6386 if (linux_br_get(brname, params->ifname) == 0) {
6387 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s",
6388 params->ifname, brname);
6389 br_ifindex = if_nametoindex(brname);
6390 } else {
6391 brname[0] = '\0';
6392 br_ifindex = 0;
6393 }
6394
c5121837
JM		 6395 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
6396 drv->if_indices = drv->default_if_indices;
92f475b4 6397 for (i = 0; i < params->num_bridge; i++) {
94627f6c
JM		 6398 if (params->bridge[i]) {
6399 ifindex = if_nametoindex(params->bridge[i]);
6400 if (ifindex)
6401 add_ifidx(drv, ifindex);
6402 if (ifindex == br_ifindex)
6403 br_added = 1;
6404 }
c5121837 6405 }
94627f6c
JM		 6406 if (!br_added && br_ifindex &&
6407 (params->num_bridge == 0 || !params->bridge[0]))
6408 add_ifidx(drv, br_ifindex);
c5121837 6409
ad1e68e6
JM		 6410 /* start listening for EAPOL on the default AP interface */
6411 add_ifidx(drv, drv->ifindex);
6412
a2e40bb6 6413 if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 0))
6980c191 6414 goto failed;
ad1e68e6 6415
6980c191 6416 if (params->bssid) {
a2e40bb6 6417 if (linux_set_ifhwaddr(drv->ioctl_sock, bss->ifname,
2ac9688e 6418 params->bssid))
460456f8
JM		 6419 goto failed;
6420 }
ad1e68e6 6421
b1f625e0 6422 if (wpa_driver_nl80211_set_mode(bss, drv->nlmode)) {
ad1e68e6 6423 wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s "
a2e40bb6 6424 "into AP mode", bss->ifname);
bbaf0837 6425 goto failed;
ad1e68e6
JM		 6426 }
6427
94627f6c 6428 if (params->num_bridge && params->bridge[0] &&
e17a2477 6429 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0)
94627f6c
JM		 6430 goto failed;
6431
a2e40bb6 6432 if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 1))
bbaf0837 6433 goto failed;
ad1e68e6
JM		 6434
6435 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE));
6436 if (drv->eapol_sock < 0) {
6437 perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)");
bbaf0837 6438 goto failed;
ad1e68e6
JM		 6439 }
6440
6441 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL))
6442 {
6443 printf("Could not register read socket for eapol\n");
c5121837 6444 goto failed;
ad1e68e6
JM		 6445 }
6446
a2e40bb6 6447 if (linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, params->own_addr))
bbaf0837 6448 goto failed;
c5121837 6449
a2e40bb6 6450 return bss;
c5121837
JM		 6451
6452failed:
460456f8 6453 nl80211_remove_monitor_interface(drv);
23970868
JM		 6454 rfkill_deinit(drv->rfkill);
6455 netlink_deinit(drv->netlink);
c5121837
JM		 6456 if (drv->ioctl_sock >= 0)
6457 close(drv->ioctl_sock);
c5121837
JM		 6458
6459 genl_family_put(drv->nl80211);
6460 nl_cache_free(drv->nl_cache);
a65a9aed 6461 nl80211_handle_destroy(drv->nl_handle);
c5121837 6462 nl_cb_put(drv->nl_cb);
23970868 6463 eloop_unregister_read_sock(nl_socket_get_fd(drv->nl_handle_event));
c5121837 6464
bbaf0837
JM		 6465 os_free(drv);
6466 return NULL;
6467}
c5121837 6468
c5121837 6469
bbaf0837
JM		 6470static void i802_deinit(void *priv)
6471{
6472 wpa_driver_nl80211_deinit(priv);
c5121837
JM		 6473}
6474
6475#endif /* HOSTAPD */
6476
6477
22a7c9d7
JM		 6478static enum nl80211_iftype wpa_driver_nl80211_if_type(
6479 enum wpa_driver_if_type type)
6480{
6481 switch (type) {
6482 case WPA_IF_STATION:
9f51b113 6483 return NL80211_IFTYPE_STATION;
75bde05d
JM		 6484 case WPA_IF_P2P_CLIENT:
6485 case WPA_IF_P2P_GROUP:
9f51b113 6486 return NL80211_IFTYPE_P2P_CLIENT;
22a7c9d7
JM		 6487 case WPA_IF_AP_VLAN:
6488 return NL80211_IFTYPE_AP_VLAN;
6489 case WPA_IF_AP_BSS:
6490 return NL80211_IFTYPE_AP;
9f51b113
JB		 6491 case WPA_IF_P2P_GO:
6492 return NL80211_IFTYPE_P2P_GO;
22a7c9d7
JM		 6493 }
6494 return -1;
6495}
6496
6497
482856c8
JM		 6498#ifdef CONFIG_P2P
6499
f2ed8023
JM		 6500static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr)
6501{
6502 struct wpa_driver_nl80211_data *drv;
6503 dl_list_for_each(drv, &global->interfaces,
6504 struct wpa_driver_nl80211_data, list) {
6505 if (os_memcmp(addr, drv->addr, ETH_ALEN) == 0)
6506 return 1;
6507 }
6508 return 0;
6509}
6510
6511
6512static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv,
6513 u8 *new_addr)
6514{
6515 unsigned int idx;
6516
6517 if (!drv->global)
6518 return -1;
6519
6520 os_memcpy(new_addr, drv->addr, ETH_ALEN);
6521 for (idx = 0; idx < 64; idx++) {
6522 new_addr[0] = drv->addr[0] | 0x02;
6523 new_addr[0] ^= idx << 2;
6524 if (!nl80211_addr_in_use(drv->global, new_addr))
6525 break;
6526 }
6527 if (idx == 64)
6528 return -1;
6529
6530 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address "
6531 MACSTR, MAC2STR(new_addr));
6532
6533 return 0;
6534}
6535
482856c8
JM		 6536#endif /* CONFIG_P2P */
6537
f2ed8023 6538
7ab68865 6539static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type,
8043e725 6540 const char *ifname, const u8 *addr,
f3585c8a 6541 void *bss_ctx, void **drv_priv,
e17a2477
JM		 6542 char *force_ifname, u8 *if_addr,
6543 const char *bridge)
22a7c9d7 6544{
a2e40bb6
FF		 6545 struct i802_bss *bss = priv;
6546 struct wpa_driver_nl80211_data *drv = bss->drv;
22a7c9d7
JM		 6547 int ifidx;
6548#ifdef HOSTAPD
a2e40bb6 6549 struct i802_bss *new_bss = NULL;
22a7c9d7
JM		 6550
6551 if (type == WPA_IF_AP_BSS) {
a2e40bb6
FF		 6552 new_bss = os_zalloc(sizeof(*new_bss));
6553 if (new_bss == NULL)
22a7c9d7
JM		 6554 return -1;
6555 }
6556#endif /* HOSTAPD */
6557
f3585c8a
JM		 6558 if (addr)
6559 os_memcpy(if_addr, addr, ETH_ALEN);
22a7c9d7 6560 ifidx = nl80211_create_iface(drv, ifname,
fbbfcbac
FF		 6561 wpa_driver_nl80211_if_type(type), addr,
6562 0);
22a7c9d7
JM		 6563 if (ifidx < 0) {
6564#ifdef HOSTAPD
a2e40bb6 6565 os_free(new_bss);
22a7c9d7
JM		 6566#endif /* HOSTAPD */
6567 return -1;
6568 }
6569
f3585c8a 6570 if (!addr &&
c55f774d
JM		 6571 linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, if_addr) < 0) {
6572 nl80211_remove_iface(drv, ifidx);
f3585c8a 6573 return -1;
c55f774d
JM		 6574 }
6575
6576#ifdef CONFIG_P2P
6577 if (!addr &&
6578 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP ||
6579 type == WPA_IF_P2P_GO)) {
6580 /* Enforce unique P2P Interface Address */
6581 u8 new_addr[ETH_ALEN], own_addr[ETH_ALEN];
6582
6583 if (linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, own_addr)
6584 < 0 ||
6585 linux_get_ifhwaddr(drv->ioctl_sock, ifname, new_addr) < 0)
6586 {
6587 nl80211_remove_iface(drv, ifidx);
6588 return -1;
6589 }
6590 if (os_memcmp(own_addr, new_addr, ETH_ALEN) == 0) {
6591 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address "
6592 "for P2P group interface");
f2ed8023 6593 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) {
c55f774d
JM		 6594 nl80211_remove_iface(drv, ifidx);
6595 return -1;
6596 }
c55f774d
JM		 6597 if (linux_set_ifhwaddr(drv->ioctl_sock, ifname,
6598 new_addr) < 0) {
6599 nl80211_remove_iface(drv, ifidx);
6600 return -1;
6601 }
c55f774d 6602 }
f67eeb5c 6603 os_memcpy(if_addr, new_addr, ETH_ALEN);
c55f774d
JM		 6604 }
6605#endif /* CONFIG_P2P */
f3585c8a 6606
22a7c9d7 6607#ifdef HOSTAPD
e17a2477
JM		 6608 if (bridge &&
6609 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) {
6610 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new "
6611 "interface %s to a bridge %s", ifname, bridge);
6612 nl80211_remove_iface(drv, ifidx);
6613 os_free(new_bss);
6614 return -1;
6615 }
6616
22a7c9d7 6617 if (type == WPA_IF_AP_BSS) {
34f2f814
JM		 6618 if (linux_set_iface_flags(drv->ioctl_sock, ifname, 1)) {
6619 nl80211_remove_iface(drv, ifidx);
07179987 6620 os_free(new_bss);
22a7c9d7
JM		 6621 return -1;
6622 }
a2e40bb6
FF		 6623 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ);
6624 new_bss->ifindex = ifidx;
6625 new_bss->drv = drv;
6626 new_bss->next = drv->first_bss.next;
6627 drv->first_bss.next = new_bss;
6628 if (drv_priv)
6629 *drv_priv = new_bss;
22a7c9d7
JM		 6630 }
6631#endif /* HOSTAPD */
6632
ff6a158b
JM		 6633 if (drv->global)
6634 drv->global->if_add_ifindex = ifidx;
6635
22a7c9d7
JM		 6636 return 0;
6637}
6638
6639
6640static int wpa_driver_nl80211_if_remove(void *priv,
6641 enum wpa_driver_if_type type,
6642 const char *ifname)
6643{
a2e40bb6
FF		 6644 struct i802_bss *bss = priv;
6645 struct wpa_driver_nl80211_data *drv = bss->drv;
22a7c9d7
JM		 6646 int ifindex = if_nametoindex(ifname);
6647
e748062b
JM		 6648 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d",
6649 __func__, type, ifname, ifindex);
6650 if (ifindex <= 0)
6651 return -1;
e17a2477
JM		 6652
6653#ifdef HOSTAPD
6654 if (bss->added_if_into_bridge) {
6655 if (linux_br_del_if(drv->ioctl_sock, bss->brname, bss->ifname)
6656 < 0)
6657 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
6658 "interface %s from bridge %s: %s",
6659 bss->ifname, bss->brname, strerror(errno));
6660 }
6661 if (bss->added_bridge) {
6662 if (linux_br_del(drv->ioctl_sock, bss->brname) < 0)
6663 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
6664 "bridge %s: %s",
6665 bss->brname, strerror(errno));
6666 }
6667#endif /* HOSTAPD */
6668
22a7c9d7
JM		 6669 nl80211_remove_iface(drv, ifindex);
6670
6671#ifdef HOSTAPD
a2e40bb6
FF		 6672 if (type != WPA_IF_AP_BSS)
6673 return 0;
6674
6675 if (bss != &drv->first_bss) {
8546ea19 6676 struct i802_bss *tbss;
a2e40bb6 6677
8546ea19
JM		 6678 for (tbss = &drv->first_bss; tbss; tbss = tbss->next) {
6679 if (tbss->next == bss) {
6680 tbss->next = bss->next;
6681 os_free(bss);
6682 bss = NULL;
6683 break;
6684 }
22a7c9d7 6685 }
8546ea19
JM		 6686 if (bss)
6687 wpa_printf(MSG_INFO, "nl80211: %s - could not find "
6688 "BSS %p in the list", __func__, bss);
22a7c9d7
JM		 6689 }
6690#endif /* HOSTAPD */
6691
6692 return 0;
6693}
6694
6695
55777702
JM		 6696static int cookie_handler(struct nl_msg *msg, void *arg)
6697{
6698 struct nlattr *tb[NL80211_ATTR_MAX + 1];
6699 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
6700 u64 *cookie = arg;
6701 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
6702 genlmsg_attrlen(gnlh, 0), NULL);
6703 if (tb[NL80211_ATTR_COOKIE])
6704 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
6705 return NL_SKIP;
6706}
6707
6708
9884f9cc 6709static int nl80211_send_frame_cmd(struct wpa_driver_nl80211_data *drv,
5dfca53f
JB		 6710 unsigned int freq, unsigned int wait,
6711 const u8 *buf, size_t buf_len,
6712 u64 *cookie_out)
9884f9cc
JB		 6713{
6714 struct nl_msg *msg;
6715 u64 cookie;
6716 int ret = -1;
6717
6718 msg = nlmsg_alloc();
6719 if (!msg)
6720 return -1;
6721
9fb04070 6722 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME);
9884f9cc
JB		 6723
6724 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6725 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
9db931ed
JM		 6726 if (wait)
6727 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait);
5dfca53f 6728 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
9884f9cc
JB		 6729 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf);
6730
6731 cookie = 0;
6732 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
6733 msg = NULL;
6734 if (ret) {
6735 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d "
a05225c8
JM		 6736 "(%s) (freq=%u wait=%u)", ret, strerror(-ret),
6737 freq, wait);
9884f9cc
JB		 6738 goto nla_put_failure;
6739 }
6740 wpa_printf(MSG_DEBUG, "nl80211: Frame TX command accepted; "
6741 "cookie 0x%llx", (long long unsigned int) cookie);
6742
6743 if (cookie_out)
6744 *cookie_out = cookie;
6745
6746nla_put_failure:
6747 nlmsg_free(msg);
6748 return ret;
6749}
6750
6751
58f6fbe0 6752static int wpa_driver_nl80211_send_action(void *priv, unsigned int freq,
190b9062 6753 unsigned int wait_time,
58f6fbe0
JM		 6754 const u8 *dst, const u8 *src,
6755 const u8 *bssid,
6756 const u8 *data, size_t data_len)
6757{
a2e40bb6
FF		 6758 struct i802_bss *bss = priv;
6759 struct wpa_driver_nl80211_data *drv = bss->drv;
58f6fbe0 6760 int ret = -1;
58f6fbe0
JM		 6761 u8 *buf;
6762 struct ieee80211_hdr *hdr;
58f6fbe0 6763
5dfca53f
JB		 6764 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, "
6765 "wait=%d ms)", drv->ifindex, wait_time);
58f6fbe0
JM		 6766
6767 buf = os_zalloc(24 + data_len);
6768 if (buf == NULL)
6769 return ret;
6770 os_memcpy(buf + 24, data, data_len);
6771 hdr = (struct ieee80211_hdr *) buf;
6772 hdr->frame_control =
6773 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION);
6774 os_memcpy(hdr->addr1, dst, ETH_ALEN);
6775 os_memcpy(hdr->addr2, src, ETH_ALEN);
6776 os_memcpy(hdr->addr3, bssid, ETH_ALEN);
6777
b1f625e0 6778 if (is_ap_interface(drv->nlmode))
58f6fbe0 6779 ret = wpa_driver_nl80211_send_mlme(priv, buf, 24 + data_len);
9884f9cc 6780 else
5dfca53f
JB		 6781 ret = nl80211_send_frame_cmd(drv, freq, wait_time, buf,
6782 24 + data_len,
9884f9cc 6783 &drv->send_action_cookie);
58f6fbe0 6784
f8bf1421 6785 os_free(buf);
58f6fbe0
JM		 6786 return ret;
6787}
6788
6789
5dfca53f
JB		 6790static void wpa_driver_nl80211_send_action_cancel_wait(void *priv)
6791{
6792 struct i802_bss *bss = priv;
6793 struct wpa_driver_nl80211_data *drv = bss->drv;
6794 struct nl_msg *msg;
6795 int ret;
6796
6797 msg = nlmsg_alloc();
6798 if (!msg)
6799 return;
6800
9fb04070 6801 nl80211_cmd(drv, msg, 0, NL80211_CMD_FRAME_WAIT_CANCEL);
5dfca53f
JB		 6802
6803 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6804 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie);
6805
6806 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6807 msg = NULL;
6808 if (ret)
6809 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d "
6810 "(%s)", ret, strerror(-ret));
6811
6812 nla_put_failure:
6813 nlmsg_free(msg);
6814}
6815
6816
55777702
JM		 6817static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq,
6818 unsigned int duration)
6819{
a2e40bb6
FF		 6820 struct i802_bss *bss = priv;
6821 struct wpa_driver_nl80211_data *drv = bss->drv;
55777702
JM		 6822 struct nl_msg *msg;
6823 int ret;
6824 u64 cookie;
6825
6826 msg = nlmsg_alloc();
6827 if (!msg)
6828 return -1;
6829
9fb04070 6830 nl80211_cmd(drv, msg, 0, NL80211_CMD_REMAIN_ON_CHANNEL);
55777702
JM		 6831
6832 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6833 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
6834 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
6835
6836 cookie = 0;
6837 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
6838 if (ret == 0) {
6839 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie "
6840 "0x%llx for freq=%u MHz duration=%u",
6841 (long long unsigned int) cookie, freq, duration);
6842 drv->remain_on_chan_cookie = cookie;
531f0331 6843 drv->pending_remain_on_chan = 1;
55777702
JM		 6844 return 0;
6845 }
6846 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel "
15ed5535
JM		 6847 "(freq=%d duration=%u): %d (%s)",
6848 freq, duration, ret, strerror(-ret));
55777702
JM		 6849nla_put_failure:
6850 return -1;
6851}
6852
6853
6854static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv)
6855{
a2e40bb6
FF		 6856 struct i802_bss *bss = priv;
6857 struct wpa_driver_nl80211_data *drv = bss->drv;
55777702
JM		 6858 struct nl_msg *msg;
6859 int ret;
6860
6861 if (!drv->pending_remain_on_chan) {
6862 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel "
6863 "to cancel");
6864 return -1;
6865 }
6866
6867 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie "
6868 "0x%llx",
6869 (long long unsigned int) drv->remain_on_chan_cookie);
6870
6871 msg = nlmsg_alloc();
6872 if (!msg)
6873 return -1;
6874
9fb04070 6875 nl80211_cmd(drv, msg, 0, NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL);
55777702
JM		 6876
6877 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6878 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie);
6879
6880 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6881 if (ret == 0)
6882 return 0;
6883 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: "
6884 "%d (%s)", ret, strerror(-ret));
6885nla_put_failure:
6886 return -1;
6887}
6888
6889
504e905c
JM		 6890static int wpa_driver_nl80211_probe_req_report(void *priv, int report)
6891{
a2e40bb6
FF		 6892 struct i802_bss *bss = priv;
6893 struct wpa_driver_nl80211_data *drv = bss->drv;
504e905c 6894
5582a5d1
JB		 6895 if (!report) {
6896 if (drv->nl_handle_preq) {
6897 eloop_unregister_read_sock(
6898 nl_socket_get_fd(drv->nl_handle_preq));
6899 nl_cache_free(drv->nl_cache_preq);
6900 nl80211_handle_destroy(drv->nl_handle_preq);
6901 drv->nl_handle_preq = NULL;
6902 }
6903 return 0;
6904 }
6905
6906 if (drv->nl_handle_preq) {
6907 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting "
6908 "already on!");
6909 return 0;
6910 }
6911
6912 drv->nl_handle_preq = nl80211_handle_alloc(drv->nl_cb);
6913 if (drv->nl_handle_preq == NULL) {
6914 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate "
6915 "netlink callbacks (preq)");
6916 goto out_err1;
6917 }
6918
6919 if (genl_connect(drv->nl_handle_preq)) {
6920 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to "
6921 "generic netlink (preq)");
6922 goto out_err2;
6923 return -1;
504e905c
JM		 6924 }
6925
5582a5d1
JB		 6926 if (genl_ctrl_alloc_cache(drv->nl_handle_preq,
6927 &drv->nl_cache_preq) < 0) {
6928 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
6929 "netlink cache (preq)");
6930 goto out_err2;
6931 }
5582a5d1
JB		 6932
6933 if (nl80211_register_frame(drv, drv->nl_handle_preq,
6934 (WLAN_FC_TYPE_MGMT << 2) |
6935 (WLAN_FC_STYPE_PROBE_REQ << 4),
6936 NULL, 0) < 0) {
6937 goto out_err3;
6938 }
6939
6940 eloop_register_read_sock(nl_socket_get_fd(drv->nl_handle_preq),
6941 wpa_driver_nl80211_event_receive, drv,
6942 drv->nl_handle_preq);
6943
504e905c 6944 return 0;
5582a5d1
JB		 6945
6946 out_err3:
6947 nl_cache_free(drv->nl_cache_preq);
6948 out_err2:
6949 nl80211_handle_destroy(drv->nl_handle_preq);
6950 drv->nl_handle_preq = NULL;
6951 out_err1:
6952 return -1;
504e905c
JM		 6953}
6954
6955
4e5cb1a3
JM		 6956static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
6957 int ifindex, int disabled)
6958{
6959 struct nl_msg *msg;
6960 struct nlattr *bands, *band;
6961 int ret;
6962
6963 msg = nlmsg_alloc();
6964 if (!msg)
6965 return -1;
6966
9fb04070 6967 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_TX_BITRATE_MASK);
4e5cb1a3
JM		 6968 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
6969
6970 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES);
6971 if (!bands)
6972 goto nla_put_failure;
6973
6974 /*
6975 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything
6976 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS
6977 * rates. All 5 GHz rates are left enabled.
6978 */
6979 band = nla_nest_start(msg, NL80211_BAND_2GHZ);
6980 if (!band)
6981 goto nla_put_failure;
6982 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8,
6983 "\x0c\x12\x18\x24\x30\x48\x60\x6c");
6984 nla_nest_end(msg, band);
6985
6986 nla_nest_end(msg, bands);
6987
6988 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6989 msg = NULL;
6990 if (ret) {
6991 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d "
6992 "(%s)", ret, strerror(-ret));
6993 }
6994
6995 return ret;
6996
6997nla_put_failure:
6998 nlmsg_free(msg);
6999 return -1;
7000}
7001
7002
7003static int wpa_driver_nl80211_disable_11b_rates(void *priv, int disabled)
7004{
a2e40bb6
FF		 7005 struct i802_bss *bss = priv;
7006 struct wpa_driver_nl80211_data *drv = bss->drv;
4e5cb1a3
JM		 7007 drv->disable_11b_rates = disabled;
7008 return nl80211_disable_11b_rates(drv, drv->ifindex, disabled);
7009}
7010
7011
af473088
JM		 7012static int wpa_driver_nl80211_deinit_ap(void *priv)
7013{
a2e40bb6
FF		 7014 struct i802_bss *bss = priv;
7015 struct wpa_driver_nl80211_data *drv = bss->drv;
b1f625e0 7016 if (!is_ap_interface(drv->nlmode))
af473088
JM		 7017 return -1;
7018 wpa_driver_nl80211_del_beacon(drv);
b1f625e0 7019 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION);
af473088
JM		 7020}
7021
7022
207ef3fb
JM		 7023static void wpa_driver_nl80211_resume(void *priv)
7024{
a2e40bb6
FF		 7025 struct i802_bss *bss = priv;
7026 struct wpa_driver_nl80211_data *drv = bss->drv;
7027 if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 1)) {
207ef3fb
JM		 7028 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on "
7029 "resume event");
7030 }
7031}
7032
7033
7b90c16a
JM		 7034static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap,
7035 const u8 *ies, size_t ies_len)
7036{
7037 struct i802_bss *bss = priv;
7038 struct wpa_driver_nl80211_data *drv = bss->drv;
7039 int ret;
7040 u8 *data, *pos;
7041 size_t data_len;
7042 u8 own_addr[ETH_ALEN];
7043
7044 if (linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, own_addr) < 0)
7045 return -1;
7046
7047 if (action != 1) {
7048 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action "
7049 "action %d", action);
7050 return -1;
7051 }
7052
7053 /*
7054 * Action frame payload:
7055 * Category[1] = 6 (Fast BSS Transition)
7056 * Action[1] = 1 (Fast BSS Transition Request)
7057 * STA Address
7058 * Target AP Address
7059 * FT IEs
7060 */
7061
73fc617d
JM		 7062 data_len = 2 + 2 * ETH_ALEN + ies_len;
7063 data = os_malloc(data_len);
7b90c16a
JM		 7064 if (data == NULL)
7065 return -1;
7066 pos = data;
7067 *pos++ = 0x06; /* FT Action category */
7068 *pos++ = action;
7069 os_memcpy(pos, own_addr, ETH_ALEN);
7070 pos += ETH_ALEN;
7071 os_memcpy(pos, target_ap, ETH_ALEN);
7072 pos += ETH_ALEN;
7073 os_memcpy(pos, ies, ies_len);
7074
190b9062
JB		 7075 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0,
7076 drv->bssid, own_addr, drv->bssid,
7b90c16a
JM		 7077 data, data_len);
7078 os_free(data);
7079
7080 return ret;
7081}
7082
7083
b625473c
JM		 7084static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis)
7085{
7086 struct i802_bss *bss = priv;
7087 struct wpa_driver_nl80211_data *drv = bss->drv;
7088 struct nl_msg *msg, *cqm = NULL;
7089
7090 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d "
7091 "hysteresis=%d", threshold, hysteresis);
7092
7093 msg = nlmsg_alloc();
7094 if (!msg)
7095 return -1;
7096
9fb04070 7097 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_CQM);
b625473c
JM		 7098
7099 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
7100
7101 cqm = nlmsg_alloc();
7102 if (cqm == NULL)
7103 return -1;
7104
7105 NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_THOLD, threshold);
7106 NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_HYST, hysteresis);
7107 nla_put_nested(msg, NL80211_ATTR_CQM, cqm);
7108
7109 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
7110 return 0;
7111 msg = NULL;
7112
7113nla_put_failure:
7114 if (cqm)
7115 nlmsg_free(cqm);
7116 nlmsg_free(msg);
7117 return -1;
7118}
7119
7120
1c5c7273
PS		 7121static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si)
7122{
7123 struct i802_bss *bss = priv;
7124 struct wpa_driver_nl80211_data *drv = bss->drv;
7125 int res;
7126
7127 os_memset(si, 0, sizeof(*si));
7128 res = nl80211_get_link_signal(drv, si);
7129 if (res != 0)
7130 return res;
7131
7132 return nl80211_get_link_noise(drv, si);
7133}
7134
7135
b91ab76e
JM		 7136static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len,
7137 int encrypt)
7138{
7139 struct i802_bss *bss = priv;
7140 struct wpa_driver_nl80211_data *drv = bss->drv;
7141 return wpa_driver_nl80211_send_frame(drv, data, data_len, encrypt);
7142}
7143
7144
c55f774d
JM		 7145static int nl80211_set_param(void *priv, const char *param)
7146{
c55f774d
JM		 7147 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param);
7148 if (param == NULL)
7149 return 0;
7150
7151#ifdef CONFIG_P2P
7152 if (os_strstr(param, "use_p2p_group_interface=1")) {
482856c8
JM		 7153 struct i802_bss *bss = priv;
7154 struct wpa_driver_nl80211_data *drv = bss->drv;
7155
c55f774d
JM		 7156 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
7157 "interface");
7158 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
7159 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
7160 }
7161#endif /* CONFIG_P2P */
7162
7163 return 0;
7164}
7165
7166
f2ed8023
JM		 7167static void * nl80211_global_init(void)
7168{
7169 struct nl80211_global *global;
7170 global = os_zalloc(sizeof(*global));
7171 if (global == NULL)
7172 return NULL;
7173 dl_list_init(&global->interfaces);
ff6a158b 7174 global->if_add_ifindex = -1;
f2ed8023
JM		 7175 return global;
7176}
7177
7178
7179static void nl80211_global_deinit(void *priv)
7180{
7181 struct nl80211_global *global = priv;
7182 if (global == NULL)
7183 return;
7184 if (!dl_list_empty(&global->interfaces)) {
7185 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at "
7186 "nl80211_global_deinit",
7187 dl_list_len(&global->interfaces));
7188 }
7189 os_free(global);
7190}
7191
7192
6859f1cb
BG		 7193static const char * nl80211_get_radio_name(void *priv)
7194{
7195 struct i802_bss *bss = priv;
7196 struct wpa_driver_nl80211_data *drv = bss->drv;
7197 return drv->phyname;
7198}
7199
7200
a6efc65d
JM		 7201static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid,
7202 const u8 *pmkid)
7203{
7204 struct nl_msg *msg;
7205
7206 msg = nlmsg_alloc();
7207 if (!msg)
7208 return -ENOMEM;
7209
9fb04070 7210 nl80211_cmd(bss->drv, msg, 0, cmd);
a6efc65d
JM		 7211
7212 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
7213 if (pmkid)
7214 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid);
7215 if (bssid)
7216 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7217
7218 return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
7219 nla_put_failure:
7220 return -ENOBUFS;
7221}
7222
7223
7224static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid)
7225{
7226 struct i802_bss *bss = priv;
7227 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid));
7228 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid);
7229}
7230
7231
7232static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid)
7233{
7234 struct i802_bss *bss = priv;
7235 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR,
7236 MAC2STR(bssid));
7237 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid);
7238}
7239
7240
7241static int nl80211_flush_pmkid(void *priv)
7242{
7243 struct i802_bss *bss = priv;
7244 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs");
7245 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL);
7246}
7247
7248
b14a210c
JB		 7249static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck,
7250 const u8 *replay_ctr)
7251{
7252 struct i802_bss *bss = priv;
7253 struct wpa_driver_nl80211_data *drv = bss->drv;
7254 struct nlattr *replay_nested;
7255 struct nl_msg *msg;
7256
7257 msg = nlmsg_alloc();
7258 if (!msg)
7259 return;
7260
9fb04070 7261 nl80211_cmd(drv, msg, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
b14a210c
JB		 7262
7263 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
7264
7265 replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
7266 if (!replay_nested)
7267 goto nla_put_failure;
7268
7269 NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek);
7270 NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck);
7271 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN,
7272 replay_ctr);
7273
7274 nla_nest_end(msg, replay_nested);
7275
7276 send_and_recv_msgs(drv, msg, NULL, NULL);
7277 return;
7278 nla_put_failure:
7279 nlmsg_free(msg);
7280}
7281
7282
bcf24348
JB		 7283static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr,
7284 int qos)
7285{
7286 struct i802_bss *bss = priv;
7287 struct {
7288 struct ieee80211_hdr hdr;
7289 u16 qos_ctl;
7290 } STRUCT_PACKED nulldata;
7291 size_t size;
7292
7293 /* Send data frame to poll STA and check whether this frame is ACKed */
7294
7295 os_memset(&nulldata, 0, sizeof(nulldata));
7296
7297 if (qos) {
7298 nulldata.hdr.frame_control =
7299 IEEE80211_FC(WLAN_FC_TYPE_DATA,
7300 WLAN_FC_STYPE_QOS_NULL);
7301 size = sizeof(nulldata);
7302 } else {
7303 nulldata.hdr.frame_control =
7304 IEEE80211_FC(WLAN_FC_TYPE_DATA,
7305 WLAN_FC_STYPE_NULLFUNC);
7306 size = sizeof(struct ieee80211_hdr);
7307 }
7308
7309 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS);
7310 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN);
7311 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
7312 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
7313
7314 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size) < 0)
7315 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to "
7316 "send poll frame");
7317}
7318
7319
3f5285e8
JM		 7320const struct wpa_driver_ops wpa_driver_nl80211_ops = {
7321 .name = "nl80211",
7322 .desc = "Linux nl80211/cfg80211",
7323 .get_bssid = wpa_driver_nl80211_get_bssid,
7324 .get_ssid = wpa_driver_nl80211_get_ssid,
3f5285e8 7325 .set_key = wpa_driver_nl80211_set_key,
6a1063e0 7326 .scan2 = wpa_driver_nl80211_scan,
d21c63b9
LC		 7327 .sched_scan = wpa_driver_nl80211_sched_scan,
7328 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan,
3f5285e8
JM		 7329 .get_scan_results2 = wpa_driver_nl80211_get_scan_results,
7330 .deauthenticate = wpa_driver_nl80211_deauthenticate,
7331 .disassociate = wpa_driver_nl80211_disassociate,
c2a04078 7332 .authenticate = wpa_driver_nl80211_authenticate,
3f5285e8 7333 .associate = wpa_driver_nl80211_associate,
f2ed8023
JM		 7334 .global_init = nl80211_global_init,
7335 .global_deinit = nl80211_global_deinit,
7336 .init2 = wpa_driver_nl80211_init,
3f5285e8 7337 .deinit = wpa_driver_nl80211_deinit,
3f5285e8
JM		 7338 .get_capa = wpa_driver_nl80211_get_capa,
7339 .set_operstate = wpa_driver_nl80211_set_operstate,
01652550 7340 .set_supp_port = wpa_driver_nl80211_set_supp_port,
6d158490 7341 .set_country = wpa_driver_nl80211_set_country,
19c3b566 7342 .set_ap = wpa_driver_nl80211_set_ap,
22a7c9d7
JM		 7343 .if_add = wpa_driver_nl80211_if_add,
7344 .if_remove = wpa_driver_nl80211_if_remove,
071f8ac4 7345 .send_mlme = wpa_driver_nl80211_send_mlme,
c3965310 7346 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data,
0f4e8b4f
JM		 7347 .sta_add = wpa_driver_nl80211_sta_add,
7348 .sta_remove = wpa_driver_nl80211_sta_remove,
db149ac9 7349 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol,
a8d6ffa4 7350 .sta_set_flags = wpa_driver_nl80211_sta_set_flags,
c5121837
JM		 7351#ifdef HOSTAPD
7352 .hapd_init = i802_init,
c5121837 7353 .hapd_deinit = i802_deinit,
f7b3920c
JM		 7354 .set_wds_sta = i802_set_wds_sta,
7355#endif /* HOSTAPD */
7356#if defined(HOSTAPD) || defined(CONFIG_AP)
c5121837
JM		 7357 .get_seqnum = i802_get_seqnum,
7358 .flush = i802_flush,
7359 .read_sta_data = i802_read_sta_data,
c5121837
JM		 7360 .get_inact_sec = i802_get_inact_sec,
7361 .sta_clear_stats = i802_sta_clear_stats,
c5121837
JM		 7362 .set_rts = i802_set_rts,
7363 .set_frag = i802_set_frag,
c5121837 7364 .set_tx_queue_params = i802_set_tx_queue_params,
c5121837 7365 .set_sta_vlan = i802_set_sta_vlan,
257da773 7366 .set_rate_sets = i802_set_rate_sets,
ee7ab173
JB		 7367 .sta_deauth = i802_sta_deauth,
7368 .sta_disassoc = i802_sta_disassoc,
7369#endif /* HOSTAPD || CONFIG_AP */
e3802622 7370 .set_freq = i802_set_freq,
58f6fbe0 7371 .send_action = wpa_driver_nl80211_send_action,
5dfca53f 7372 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait,
55777702
JM		 7373 .remain_on_channel = wpa_driver_nl80211_remain_on_channel,
7374 .cancel_remain_on_channel =
7375 wpa_driver_nl80211_cancel_remain_on_channel,
504e905c 7376 .probe_req_report = wpa_driver_nl80211_probe_req_report,
4e5cb1a3 7377 .disable_11b_rates = wpa_driver_nl80211_disable_11b_rates,
af473088 7378 .deinit_ap = wpa_driver_nl80211_deinit_ap,
207ef3fb 7379 .resume = wpa_driver_nl80211_resume,
7b90c16a 7380 .send_ft_action = nl80211_send_ft_action,
b625473c 7381 .signal_monitor = nl80211_signal_monitor,
1c5c7273 7382 .signal_poll = nl80211_signal_poll,
b91ab76e 7383 .send_frame = nl80211_send_frame,
c55f774d 7384 .set_param = nl80211_set_param,
6859f1cb 7385 .get_radio_name = nl80211_get_radio_name,
a6efc65d
JM		 7386 .add_pmkid = nl80211_add_pmkid,
7387 .remove_pmkid = nl80211_remove_pmkid,
7388 .flush_pmkid = nl80211_flush_pmkid,
b14a210c 7389 .set_rekey_info = nl80211_set_rekey_info,
bcf24348 7390 .poll_client = nl80211_poll_client,
3f5285e8 7391};
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