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[thirdparty/hostap.git] / src / drivers / driver_nl80211.c
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3f5285e8 1/*
c5121837 2 * Driver interaction with Linux nl80211/cfg80211
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
3f5285e8
JM		 406static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid)
407{
a2e40bb6
FF		 408 struct i802_bss *bss = priv;
409 struct wpa_driver_nl80211_data *drv = bss->drv;
c2a04078
JM		 410 if (!drv->associated)
411 return -1;
412 os_memcpy(bssid, drv->bssid, ETH_ALEN);
413 return 0;
3f5285e8
JM		 414}
415
416
3f5285e8
JM		 417static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid)
418{
a2e40bb6
FF		 419 struct i802_bss *bss = priv;
420 struct wpa_driver_nl80211_data *drv = bss->drv;
fd05d64e
JM		 421 if (!drv->associated)
422 return -1;
423 os_memcpy(ssid, drv->ssid, drv->ssid_len);
424 return drv->ssid_len;
3f5285e8
JM		 425}
426
427
7524cfb1 428static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv,
08063178 429 char *buf, size_t len, int del)
3f5285e8
JM		 430{
431 union wpa_event_data event;
432
433 os_memset(&event, 0, sizeof(event));
434 if (len > sizeof(event.interface_status.ifname))
435 len = sizeof(event.interface_status.ifname) - 1;
436 os_memcpy(event.interface_status.ifname, buf, len);
437 event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED :
438 EVENT_INTERFACE_ADDED;
439
440 wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s",
441 del ? "DEL" : "NEW",
442 event.interface_status.ifname,
443 del ? "removed" : "added");
444
a2e40bb6 445 if (os_strcmp(drv->first_bss.ifname, event.interface_status.ifname) == 0) {
7524cfb1
JM		 446 if (del)
447 drv->if_removed = 1;
448 else
449 drv->if_removed = 0;
450 }
451
08063178 452 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS, &event);
3f5285e8
JM		 453}
454
455
7524cfb1 456static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv,
62d680c3 457 u8 *buf, size_t len)
7524cfb1 458{
62d680c3 459 int attrlen, rta_len;
7524cfb1
JM		 460 struct rtattr *attr;
461
62d680c3
JM		 462 attrlen = len;
463 attr = (struct rtattr *) buf;
7524cfb1
JM		 464
465 rta_len = RTA_ALIGN(sizeof(struct rtattr));
466 while (RTA_OK(attr, attrlen)) {
467 if (attr->rta_type == IFLA_IFNAME) {
a2e40bb6 468 if (os_strcmp(((char *) attr) + rta_len, drv->first_bss.ifname)
7524cfb1
JM		 469 == 0)
470 return 1;
471 else
472 break;
473 }
474 attr = RTA_NEXT(attr, attrlen);
475 }
476
477 return 0;
478}
479
480
481static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv,
62d680c3 482 int ifindex, u8 *buf, size_t len)
7524cfb1
JM		 483{
484 if (drv->ifindex == ifindex)
485 return 1;
486
62d680c3 487 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, buf, len)) {
a2e40bb6 488 drv->first_bss.ifindex = if_nametoindex(drv->first_bss.ifname);
7524cfb1
JM		 489 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed "
490 "interface");
491 wpa_driver_nl80211_finish_drv_init(drv);
492 return 1;
493 }
494
495 return 0;
496}
497
498
62d680c3
JM		 499static void wpa_driver_nl80211_event_rtm_newlink(void *ctx,
500 struct ifinfomsg *ifi,
501 u8 *buf, size_t len)
3f5285e8 502{
08063178 503 struct wpa_driver_nl80211_data *drv = ctx;
62d680c3
JM		 504 int attrlen, rta_len;
505 struct rtattr *attr;
97cfcf64 506 u32 brid = 0;
3f5285e8 507
97cfcf64
B		 508 if (!wpa_driver_nl80211_own_ifindex(drv, ifi->ifi_index, buf, len) &&
509 !have_ifidx(drv, ifi->ifi_index)) {
510 wpa_printf(MSG_DEBUG, "nl80211: Ignore event for foreign "
511 "ifindex %d", ifi->ifi_index);
3f5285e8
JM		 512 return;
513 }
514
515 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x "
516 "(%s%s%s%s)",
517 drv->operstate, ifi->ifi_flags,
518 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "",
519 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "",
520 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "",
521 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : "");
a63063b4
JM		 522
523 if (!drv->if_disabled && !(ifi->ifi_flags & IFF_UP)) {
524 wpa_printf(MSG_DEBUG, "nl80211: Interface down");
7d9c3698
JM		 525 if (drv->ignore_if_down_event) {
526 wpa_printf(MSG_DEBUG, "nl80211: Ignore interface down "
527 "event generated by mode change");
528 drv->ignore_if_down_event = 0;
529 } else {
530 drv->if_disabled = 1;
531 wpa_supplicant_event(drv->ctx,
532 EVENT_INTERFACE_DISABLED, NULL);
533 }
a63063b4
JM		 534 }
535
536 if (drv->if_disabled && (ifi->ifi_flags & IFF_UP)) {
537 wpa_printf(MSG_DEBUG, "nl80211: Interface up");
538 drv->if_disabled = 0;
539 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED, NULL);
540 }
541
3f5285e8
JM		 542 /*
543 * Some drivers send the association event before the operup event--in
544 * this case, lifting operstate in wpa_driver_nl80211_set_operstate()
545 * fails. This will hit us when wpa_supplicant does not need to do
546 * IEEE 802.1X authentication
547 */
548 if (drv->operstate == 1 &&
549 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP &&
550 !(ifi->ifi_flags & IFF_RUNNING))
08063178 551 netlink_send_oper_ifla(drv->netlink, drv->ifindex,
e2d02c29 552 -1, IF_OPER_UP);
3f5285e8 553
62d680c3
JM		 554 attrlen = len;
555 attr = (struct rtattr *) buf;
3f5285e8
JM		 556 rta_len = RTA_ALIGN(sizeof(struct rtattr));
557 while (RTA_OK(attr, attrlen)) {
d8816397 558 if (attr->rta_type == IFLA_IFNAME) {
7524cfb1 559 wpa_driver_nl80211_event_link(
08063178 560 drv,
7524cfb1
JM		 561 ((char *) attr) + rta_len,
562 attr->rta_len - rta_len, 0);
97cfcf64
B		 563 } else if (attr->rta_type == IFLA_MASTER)
564 brid = nla_get_u32((struct nlattr *) attr);
3f5285e8
JM		 565 attr = RTA_NEXT(attr, attrlen);
566 }
97cfcf64 567
37eb8da9 568#ifdef HOSTAPD
97cfcf64
B		 569 if (ifi->ifi_family == AF_BRIDGE && brid) {
570 /* device has been added to bridge */
571 char namebuf[IFNAMSIZ];
572 if_indextoname(brid, namebuf);
573 wpa_printf(MSG_DEBUG, "nl80211: Add ifindex %u for bridge %s",
574 brid, namebuf);
575 add_ifidx(drv, brid);
576 }
37eb8da9 577#endif /* HOSTAPD */
3f5285e8
JM		 578}
579
580
62d680c3
JM		 581static void wpa_driver_nl80211_event_rtm_dellink(void *ctx,
582 struct ifinfomsg *ifi,
583 u8 *buf, size_t len)
3f5285e8 584{
08063178 585 struct wpa_driver_nl80211_data *drv = ctx;
62d680c3
JM		 586 int attrlen, rta_len;
587 struct rtattr *attr;
97cfcf64 588 u32 brid = 0;
3f5285e8 589
62d680c3
JM		 590 attrlen = len;
591 attr = (struct rtattr *) buf;
3f5285e8
JM		 592
593 rta_len = RTA_ALIGN(sizeof(struct rtattr));
594 while (RTA_OK(attr, attrlen)) {
595 if (attr->rta_type == IFLA_IFNAME) {
7524cfb1 596 wpa_driver_nl80211_event_link(
08063178 597 drv,
7524cfb1
JM		 598 ((char *) attr) + rta_len,
599 attr->rta_len - rta_len, 1);
97cfcf64
B		 600 } else if (attr->rta_type == IFLA_MASTER)
601 brid = nla_get_u32((struct nlattr *) attr);
3f5285e8
JM		 602 attr = RTA_NEXT(attr, attrlen);
603 }
97cfcf64 604
37eb8da9 605#ifdef HOSTAPD
97cfcf64
B		 606 if (ifi->ifi_family == AF_BRIDGE && brid) {
607 /* device has been removed from bridge */
608 char namebuf[IFNAMSIZ];
609 if_indextoname(brid, namebuf);
610 wpa_printf(MSG_DEBUG, "nl80211: Remove ifindex %u for bridge "
611 "%s", brid, namebuf);
612 del_ifidx(drv, brid);
613 }
37eb8da9 614#endif /* HOSTAPD */
3f5285e8
JM		 615}
616
617
c2a04078
JM		 618static void mlme_event_auth(struct wpa_driver_nl80211_data *drv,
619 const u8 *frame, size_t len)
620{
621 const struct ieee80211_mgmt *mgmt;
622 union wpa_event_data event;
623
624 mgmt = (const struct ieee80211_mgmt *) frame;
625 if (len < 24 + sizeof(mgmt->u.auth)) {
626 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
627 "frame");
628 return;
629 }
630
e6b8efeb 631 os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN);
c2a04078
JM		 632 os_memset(&event, 0, sizeof(event));
633 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN);
634 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg);
635 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code);
636 if (len > 24 + sizeof(mgmt->u.auth)) {
637 event.auth.ies = mgmt->u.auth.variable;
638 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth);
639 }
640
641 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event);
642}
643
644
f5a8d422
JM		 645static unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv)
646{
647 struct nl_msg *msg;
648 int ret;
649 struct nl80211_bss_info_arg arg;
650
651 os_memset(&arg, 0, sizeof(arg));
652 msg = nlmsg_alloc();
653 if (!msg)
654 goto nla_put_failure;
655
656 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, NLM_F_DUMP,
657 NL80211_CMD_GET_SCAN, 0);
658 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
659
660 arg.drv = drv;
661 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
662 msg = NULL;
663 if (ret == 0) {
664 wpa_printf(MSG_DEBUG, "nl80211: Operating frequency for the "
665 "associated BSS from scan results: %u MHz",
666 arg.assoc_freq);
667 return arg.assoc_freq ? arg.assoc_freq : drv->assoc_freq;
668 }
669 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
670 "(%s)", ret, strerror(-ret));
671nla_put_failure:
672 nlmsg_free(msg);
673 return drv->assoc_freq;
674}
675
676
c2a04078
JM		 677static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv,
678 const u8 *frame, size_t len)
679{
680 const struct ieee80211_mgmt *mgmt;
681 union wpa_event_data event;
682 u16 status;
683
684 mgmt = (const struct ieee80211_mgmt *) frame;
685 if (len < 24 + sizeof(mgmt->u.assoc_resp)) {
686 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
687 "frame");
688 return;
689 }
690
691 status = le_to_host16(mgmt->u.assoc_resp.status_code);
692 if (status != WLAN_STATUS_SUCCESS) {
efa46078 693 os_memset(&event, 0, sizeof(event));
59ddf221 694 event.assoc_reject.bssid = mgmt->bssid;
efa46078
JM		 695 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
696 event.assoc_reject.resp_ies =
697 (u8 *) mgmt->u.assoc_resp.variable;
698 event.assoc_reject.resp_ies_len =
699 len - 24 - sizeof(mgmt->u.assoc_resp);
700 }
701 event.assoc_reject.status_code = status;
702
703 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
c2a04078
JM		 704 return;
705 }
706
707 drv->associated = 1;
708 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN);
709
710 os_memset(&event, 0, sizeof(event));
711 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
712 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable;
713 event.assoc_info.resp_ies_len =
efa46078 714 len - 24 - sizeof(mgmt->u.assoc_resp);
c2a04078
JM		 715 }
716
4832ecd7
JM		 717 event.assoc_info.freq = drv->assoc_freq;
718
c2a04078
JM		 719 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
720}
721
c1bb3e0a 722
da72a1c1
ZY		 723static void mlme_event_connect(struct wpa_driver_nl80211_data *drv,
724 enum nl80211_commands cmd, struct nlattr *status,
725 struct nlattr *addr, struct nlattr *req_ie,
726 struct nlattr *resp_ie)
727{
728 union wpa_event_data event;
729
7da2c527
JM		 730 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
731 /*
732 * Avoid reporting two association events that would confuse
733 * the core code.
734 */
735 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) "
736 "when using userspace SME", cmd);
737 return;
738 }
739
da72a1c1
ZY		 740 os_memset(&event, 0, sizeof(event));
741 if (cmd == NL80211_CMD_CONNECT &&
742 nla_get_u16(status) != WLAN_STATUS_SUCCESS) {
df89c1c8
JM		 743 if (addr)
744 event.assoc_reject.bssid = nla_data(addr);
da72a1c1
ZY		 745 if (resp_ie) {
746 event.assoc_reject.resp_ies = nla_data(resp_ie);
747 event.assoc_reject.resp_ies_len = nla_len(resp_ie);
748 }
749 event.assoc_reject.status_code = nla_get_u16(status);
750 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
751 return;
752 }
753
754 drv->associated = 1;
755 if (addr)
756 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN);
757
758 if (req_ie) {
759 event.assoc_info.req_ies = nla_data(req_ie);
760 event.assoc_info.req_ies_len = nla_len(req_ie);
761 }
762 if (resp_ie) {
763 event.assoc_info.resp_ies = nla_data(resp_ie);
764 event.assoc_info.resp_ies_len = nla_len(resp_ie);
765 }
766
f5a8d422
JM		 767 event.assoc_info.freq = nl80211_get_assoc_freq(drv);
768
da72a1c1
ZY		 769 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
770}
c2a04078 771
c1bb3e0a 772
20f5a4c2
JM		 773static void mlme_event_disconnect(struct wpa_driver_nl80211_data *drv,
774 struct nlattr *reason, struct nlattr *addr)
775{
776 union wpa_event_data data;
777
778 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
779 /*
780 * Avoid reporting two disassociation events that could
781 * confuse the core code.
782 */
783 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect "
784 "event when using userspace SME");
785 return;
786 }
787
788 drv->associated = 0;
789 os_memset(&data, 0, sizeof(data));
790 if (reason)
791 data.disassoc_info.reason_code = nla_get_u16(reason);
792 wpa_supplicant_event(drv->ctx, EVENT_DISASSOC, &data);
793}
794
795
da1fb17c
JM		 796static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv,
797 enum nl80211_commands cmd, struct nlattr *addr)
798{
799 union wpa_event_data event;
800 enum wpa_event_type ev;
801
802 if (nla_len(addr) != ETH_ALEN)
803 return;
804
805 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR,
806 cmd, MAC2STR((u8 *) nla_data(addr)));
807
808 if (cmd == NL80211_CMD_AUTHENTICATE)
809 ev = EVENT_AUTH_TIMED_OUT;
810 else if (cmd == NL80211_CMD_ASSOCIATE)
811 ev = EVENT_ASSOC_TIMED_OUT;
812 else
813 return;
814
815 os_memset(&event, 0, sizeof(event));
816 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN);
817 wpa_supplicant_event(drv->ctx, ev, &event);
818}
819
820
5582a5d1
JB		 821static void mlme_event_mgmt(struct wpa_driver_nl80211_data *drv,
822 struct nlattr *freq, const u8 *frame, size_t len)
58f6fbe0
JM		 823{
824 const struct ieee80211_mgmt *mgmt;
825 union wpa_event_data event;
826 u16 fc, stype;
827
828 mgmt = (const struct ieee80211_mgmt *) frame;
829 if (len < 24) {
830 wpa_printf(MSG_DEBUG, "nl80211: Too short action frame");
831 return;
832 }
833
834 fc = le_to_host16(mgmt->frame_control);
835 stype = WLAN_FC_GET_STYPE(fc);
836
837 os_memset(&event, 0, sizeof(event));
5582a5d1 838 if (freq) {
58f6fbe0 839 event.rx_action.freq = nla_get_u32(freq);
5582a5d1
JB		 840 drv->last_mgmt_freq = event.rx_action.freq;
841 }
842 if (stype == WLAN_FC_STYPE_ACTION) {
843 event.rx_action.da = mgmt->da;
844 event.rx_action.sa = mgmt->sa;
845 event.rx_action.bssid = mgmt->bssid;
846 event.rx_action.category = mgmt->u.action.category;
847 event.rx_action.data = &mgmt->u.action.category + 1;
848 event.rx_action.len = frame + len - event.rx_action.data;
849 wpa_supplicant_event(drv->ctx, EVENT_RX_ACTION, &event);
850 } else {
851 event.rx_mgmt.frame = frame;
852 event.rx_mgmt.frame_len = len;
853 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
854 }
58f6fbe0
JM		 855}
856
857
858static void mlme_event_action_tx_status(struct wpa_driver_nl80211_data *drv,
859 struct nlattr *cookie, const u8 *frame,
860 size_t len, struct nlattr *ack)
861{
862 union wpa_event_data event;
863 const struct ieee80211_hdr *hdr;
864 u16 fc;
865 u64 cookie_val;
866
867 if (!cookie)
868 return;
869
870 cookie_val = nla_get_u64(cookie);
4796272f
JM		 871 wpa_printf(MSG_DEBUG, "nl80211: Action TX status: cookie=0%llx%s "
872 "(ack=%d)",
58f6fbe0
JM		 873 (long long unsigned int) cookie_val,
874 cookie_val == drv->send_action_cookie ?
4796272f 875 " (match)" : " (unknown)", ack != NULL);
58f6fbe0
JM		 876 if (cookie_val != drv->send_action_cookie)
877 return;
878
879 hdr = (const struct ieee80211_hdr *) frame;
880 fc = le_to_host16(hdr->frame_control);
881
882 os_memset(&event, 0, sizeof(event));
883 event.tx_status.type = WLAN_FC_GET_TYPE(fc);
884 event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
885 event.tx_status.dst = hdr->addr1;
886 event.tx_status.data = frame;
887 event.tx_status.data_len = len;
888 event.tx_status.ack = ack != NULL;
889 wpa_supplicant_event(drv->ctx, EVENT_TX_STATUS, &event);
890}
891
892
0544b242
JM		 893static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv,
894 enum wpa_event_type type,
895 const u8 *frame, size_t len)
896{
897 const struct ieee80211_mgmt *mgmt;
898 union wpa_event_data event;
899 const u8 *bssid = NULL;
900 u16 reason_code = 0;
901
cb30b297
PS		 902 mgmt = (const struct ieee80211_mgmt *) frame;
903 if (len >= 24) {
904 bssid = mgmt->bssid;
905
906 if (drv->associated != 0 &&
907 os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 &&
908 os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) {
909 /*
910 * We have presumably received this deauth as a
911 * response to a clear_state_mismatch() outgoing
912 * deauth. Don't let it take us offline!
913 */
914 wpa_printf(MSG_DEBUG, "nl80211: Deauth received "
915 "from Unknown BSSID " MACSTR " -- ignoring",
916 MAC2STR(bssid));
917 return;
918 }
919 }
920
0544b242
JM		 921 drv->associated = 0;
922 os_memset(&event, 0, sizeof(event));
923
0544b242
JM		 924 /* Note: Same offset for Reason Code in both frame subtypes */
925 if (len >= 24 + sizeof(mgmt->u.deauth))
926 reason_code = le_to_host16(mgmt->u.deauth.reason_code);
927
928 if (type == EVENT_DISASSOC) {
929 event.disassoc_info.addr = bssid;
930 event.disassoc_info.reason_code = reason_code;
046b26a2
JM		 931 if (frame + len > mgmt->u.disassoc.variable) {
932 event.disassoc_info.ie = mgmt->u.disassoc.variable;
933 event.disassoc_info.ie_len = frame + len -
934 mgmt->u.disassoc.variable;
935 }
0544b242
JM		 936 } else {
937 event.deauth_info.addr = bssid;
938 event.deauth_info.reason_code = reason_code;
046b26a2
JM		 939 if (frame + len > mgmt->u.deauth.variable) {
940 event.deauth_info.ie = mgmt->u.deauth.variable;
941 event.deauth_info.ie_len = frame + len -
942 mgmt->u.deauth.variable;
943 }
0544b242
JM		 944 }
945
946 wpa_supplicant_event(drv->ctx, type, &event);
947}
948
949
7d878ca7
JM		 950static void mlme_event_unprot_disconnect(struct wpa_driver_nl80211_data *drv,
951 enum wpa_event_type type,
952 const u8 *frame, size_t len)
953{
954 const struct ieee80211_mgmt *mgmt;
955 union wpa_event_data event;
956 u16 reason_code = 0;
957
958 if (len < 24)
959 return;
960
961 mgmt = (const struct ieee80211_mgmt *) frame;
962
963 os_memset(&event, 0, sizeof(event));
964 /* Note: Same offset for Reason Code in both frame subtypes */
965 if (len >= 24 + sizeof(mgmt->u.deauth))
966 reason_code = le_to_host16(mgmt->u.deauth.reason_code);
967
968 if (type == EVENT_UNPROT_DISASSOC) {
969 event.unprot_disassoc.sa = mgmt->sa;
970 event.unprot_disassoc.da = mgmt->da;
971 event.unprot_disassoc.reason_code = reason_code;
972 } else {
973 event.unprot_deauth.sa = mgmt->sa;
974 event.unprot_deauth.da = mgmt->da;
975 event.unprot_deauth.reason_code = reason_code;
976 }
977
978 wpa_supplicant_event(drv->ctx, type, &event);
979}
980
981
c2a04078 982static void mlme_event(struct wpa_driver_nl80211_data *drv,
da1fb17c 983 enum nl80211_commands cmd, struct nlattr *frame,
58f6fbe0
JM		 984 struct nlattr *addr, struct nlattr *timed_out,
985 struct nlattr *freq, struct nlattr *ack,
986 struct nlattr *cookie)
c2a04078 987{
da1fb17c
JM		 988 if (timed_out && addr) {
989 mlme_timeout_event(drv, cmd, addr);
990 return;
991 }
992
c2a04078
JM		 993 if (frame == NULL) {
994 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d without frame "
995 "data", cmd);
996 return;
997 }
998
999 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d", cmd);
1000 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame",
1001 nla_data(frame), nla_len(frame));
1002
1003 switch (cmd) {
1004 case NL80211_CMD_AUTHENTICATE:
1005 mlme_event_auth(drv, nla_data(frame), nla_len(frame));
1006 break;
1007 case NL80211_CMD_ASSOCIATE:
1008 mlme_event_assoc(drv, nla_data(frame), nla_len(frame));
1009 break;
1010 case NL80211_CMD_DEAUTHENTICATE:
0544b242
JM		 1011 mlme_event_deauth_disassoc(drv, EVENT_DEAUTH,
1012 nla_data(frame), nla_len(frame));
c2a04078
JM		 1013 break;
1014 case NL80211_CMD_DISASSOCIATE:
0544b242
JM		 1015 mlme_event_deauth_disassoc(drv, EVENT_DISASSOC,
1016 nla_data(frame), nla_len(frame));
c2a04078 1017 break;
bd94971e 1018 case NL80211_CMD_FRAME:
5582a5d1 1019 mlme_event_mgmt(drv, freq, nla_data(frame), nla_len(frame));
58f6fbe0 1020 break;
bd94971e 1021 case NL80211_CMD_FRAME_TX_STATUS:
58f6fbe0
JM		 1022 mlme_event_action_tx_status(drv, cookie, nla_data(frame),
1023 nla_len(frame), ack);
1024 break;
7d878ca7
JM		 1025 case NL80211_CMD_UNPROT_DEAUTHENTICATE:
1026 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DEAUTH,
1027 nla_data(frame), nla_len(frame));
1028 break;
1029 case NL80211_CMD_UNPROT_DISASSOCIATE:
1030 mlme_event_unprot_disconnect(drv, EVENT_UNPROT_DISASSOC,
1031 nla_data(frame), nla_len(frame));
1032 break;
c2a04078
JM		 1033 default:
1034 break;
1035 }
1036}
1037
1038
35583f3f
JM		 1039static void mlme_event_michael_mic_failure(struct wpa_driver_nl80211_data *drv,
1040 struct nlattr *tb[])
1041{
1042 union wpa_event_data data;
1043
1044 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure");
1045 os_memset(&data, 0, sizeof(data));
1046 if (tb[NL80211_ATTR_MAC]) {
1047 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address",
1048 nla_data(tb[NL80211_ATTR_MAC]),
1049 nla_len(tb[NL80211_ATTR_MAC]));
ad1e68e6 1050 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]);
35583f3f
JM		 1051 }
1052 if (tb[NL80211_ATTR_KEY_SEQ]) {
1053 wpa_hexdump(MSG_DEBUG, "nl80211: TSC",
1054 nla_data(tb[NL80211_ATTR_KEY_SEQ]),
1055 nla_len(tb[NL80211_ATTR_KEY_SEQ]));
1056 }
1057 if (tb[NL80211_ATTR_KEY_TYPE]) {
1058 enum nl80211_key_type key_type =
1059 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]);
1060 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type);
1061 if (key_type == NL80211_KEYTYPE_PAIRWISE)
1062 data.michael_mic_failure.unicast = 1;
1063 } else
1064 data.michael_mic_failure.unicast = 1;
1065
1066 if (tb[NL80211_ATTR_KEY_IDX]) {
1067 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]);
1068 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id);
1069 }
1070
1071 wpa_supplicant_event(drv->ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
1072}
1073
1074
5cc4d64b
JM		 1075static void mlme_event_join_ibss(struct wpa_driver_nl80211_data *drv,
1076 struct nlattr *tb[])
1077{
1078 if (tb[NL80211_ATTR_MAC] == NULL) {
1079 wpa_printf(MSG_DEBUG, "nl80211: No address in IBSS joined "
1080 "event");
1081 return;
1082 }
1083 os_memcpy(drv->bssid, nla_data(tb[NL80211_ATTR_MAC]), ETH_ALEN);
1084 drv->associated = 1;
1085 wpa_printf(MSG_DEBUG, "nl80211: IBSS " MACSTR " joined",
1086 MAC2STR(drv->bssid));
1087
1088 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL);
1089}
1090
1091
55777702
JM		 1092static void mlme_event_remain_on_channel(struct wpa_driver_nl80211_data *drv,
1093 int cancel_event, struct nlattr *tb[])
1094{
1095 unsigned int freq, chan_type, duration;
1096 union wpa_event_data data;
1097 u64 cookie;
1098
1099 if (tb[NL80211_ATTR_WIPHY_FREQ])
1100 freq = nla_get_u32(tb[NL80211_ATTR_WIPHY_FREQ]);
1101 else
1102 freq = 0;
1103
1104 if (tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
1105 chan_type = nla_get_u32(tb[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1106 else
1107 chan_type = 0;
1108
1109 if (tb[NL80211_ATTR_DURATION])
1110 duration = nla_get_u32(tb[NL80211_ATTR_DURATION]);
1111 else
1112 duration = 0;
1113
1114 if (tb[NL80211_ATTR_COOKIE])
1115 cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
1116 else
1117 cookie = 0;
1118
1119 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel event (cancel=%d "
1120 "freq=%u channel_type=%u duration=%u cookie=0x%llx (%s))",
1121 cancel_event, freq, chan_type, duration,
1122 (long long unsigned int) cookie,
1123 cookie == drv->remain_on_chan_cookie ? "match" : "unknown");
1124
1125 if (cookie != drv->remain_on_chan_cookie)
1126 return; /* not for us */
1127
531f0331
JB		 1128 if (cancel_event)
1129 drv->pending_remain_on_chan = 0;
55777702
JM		 1130
1131 os_memset(&data, 0, sizeof(data));
1132 data.remain_on_channel.freq = freq;
1133 data.remain_on_channel.duration = duration;
1134 wpa_supplicant_event(drv->ctx, cancel_event ?
1135 EVENT_CANCEL_REMAIN_ON_CHANNEL :
1136 EVENT_REMAIN_ON_CHANNEL, &data);
1137}
1138
1139
8d923a4a
JM		 1140static void send_scan_event(struct wpa_driver_nl80211_data *drv, int aborted,
1141 struct nlattr *tb[])
1142{
1143 union wpa_event_data event;
1144 struct nlattr *nl;
1145 int rem;
1146 struct scan_info *info;
1147#define MAX_REPORT_FREQS 50
1148 int freqs[MAX_REPORT_FREQS];
1149 int num_freqs = 0;
1150
1151 os_memset(&event, 0, sizeof(event));
1152 info = &event.scan_info;
1153 info->aborted = aborted;
1154
1155 if (tb[NL80211_ATTR_SCAN_SSIDS]) {
1156 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_SSIDS], rem) {
1157 struct wpa_driver_scan_ssid *s =
1158 &info->ssids[info->num_ssids];
1159 s->ssid = nla_data(nl);
1160 s->ssid_len = nla_len(nl);
1161 info->num_ssids++;
1162 if (info->num_ssids == WPAS_MAX_SCAN_SSIDS)
1163 break;
1164 }
1165 }
1166 if (tb[NL80211_ATTR_SCAN_FREQUENCIES]) {
1167 nla_for_each_nested(nl, tb[NL80211_ATTR_SCAN_FREQUENCIES], rem)
1168 {
1169 freqs[num_freqs] = nla_get_u32(nl);
1170 num_freqs++;
1171 if (num_freqs == MAX_REPORT_FREQS - 1)
1172 break;
1173 }
1174 info->freqs = freqs;
1175 info->num_freqs = num_freqs;
1176 }
1177 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, &event);
1178}
1179
1180
60a972a6
JM		 1181static int get_link_signal(struct nl_msg *msg, void *arg)
1182{
1183 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1184 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1185 struct nlattr *sinfo[NL80211_STA_INFO_MAX + 1];
1186 static struct nla_policy policy[NL80211_STA_INFO_MAX + 1] = {
1187 [NL80211_STA_INFO_SIGNAL] = { .type = NLA_U8 },
1188 };
7ee35bf3
PS		 1189 struct nlattr *rinfo[NL80211_RATE_INFO_MAX + 1];
1190 static struct nla_policy rate_policy[NL80211_RATE_INFO_MAX + 1] = {
1191 [NL80211_RATE_INFO_BITRATE] = { .type = NLA_U16 },
1192 [NL80211_RATE_INFO_MCS] = { .type = NLA_U8 },
1193 [NL80211_RATE_INFO_40_MHZ_WIDTH] = { .type = NLA_FLAG },
1194 [NL80211_RATE_INFO_SHORT_GI] = { .type = NLA_FLAG },
1195 };
1c5c7273 1196 struct wpa_signal_info *sig_change = arg;
60a972a6
JM		 1197
1198 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1199 genlmsg_attrlen(gnlh, 0), NULL);
1200 if (!tb[NL80211_ATTR_STA_INFO] ||
1201 nla_parse_nested(sinfo, NL80211_STA_INFO_MAX,
1202 tb[NL80211_ATTR_STA_INFO], policy))
1203 return NL_SKIP;
1204 if (!sinfo[NL80211_STA_INFO_SIGNAL])
1205 return NL_SKIP;
1206
7ee35bf3
PS		 1207 sig_change->current_signal =
1208 (s8) nla_get_u8(sinfo[NL80211_STA_INFO_SIGNAL]);
1209
1210 if (sinfo[NL80211_STA_INFO_TX_BITRATE]) {
1211 if (nla_parse_nested(rinfo, NL80211_RATE_INFO_MAX,
1212 sinfo[NL80211_STA_INFO_TX_BITRATE],
1213 rate_policy)) {
1214 sig_change->current_txrate = 0;
1215 } else {
1216 if (rinfo[NL80211_RATE_INFO_BITRATE]) {
1217 sig_change->current_txrate =
1218 nla_get_u16(rinfo[
1219 NL80211_RATE_INFO_BITRATE]) * 100;
1220 }
1221 }
1222 }
1223
60a972a6
JM		 1224 return NL_SKIP;
1225}
1226
1227
1228static int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv,
1c5c7273 1229 struct wpa_signal_info *sig)
60a972a6
JM		 1230{
1231 struct nl_msg *msg;
1232
7ee35bf3
PS		 1233 sig->current_signal = -9999;
1234 sig->current_txrate = 0;
60a972a6
JM		 1235
1236 msg = nlmsg_alloc();
1237 if (!msg)
1238 return -ENOMEM;
1239
1240 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1241 0, NL80211_CMD_GET_STATION, 0);
1242
1243 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1244 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
1245
1246 return send_and_recv_msgs(drv, msg, get_link_signal, sig);
1247 nla_put_failure:
1248 return -ENOBUFS;
1249}
1250
1251
7ee35bf3
PS		 1252static int get_link_noise(struct nl_msg *msg, void *arg)
1253{
1254 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1255 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1256 struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
1257 static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
1258 [NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
1259 [NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
1260 };
1c5c7273 1261 struct wpa_signal_info *sig_change = arg;
7ee35bf3
PS		 1262
1263 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1264 genlmsg_attrlen(gnlh, 0), NULL);
1265
1266 if (!tb[NL80211_ATTR_SURVEY_INFO]) {
1267 wpa_printf(MSG_DEBUG, "nl80211: survey data missing!");
1268 return NL_SKIP;
1269 }
1270
1271 if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX,
1272 tb[NL80211_ATTR_SURVEY_INFO],
1273 survey_policy)) {
1274 wpa_printf(MSG_DEBUG, "nl80211: failed to parse nested "
1275 "attributes!");
1276 return NL_SKIP;
1277 }
1278
1279 if (!sinfo[NL80211_SURVEY_INFO_FREQUENCY])
1280 return NL_SKIP;
1281
1282 if (nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]) !=
1283 sig_change->frequency)
1284 return NL_SKIP;
1285
1286 if (!sinfo[NL80211_SURVEY_INFO_NOISE])
1287 return NL_SKIP;
1288
1289 sig_change->current_noise =
1290 (s8) nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
1291
1292 return NL_SKIP;
1293}
1294
1295
1296static int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv,
1c5c7273 1297 struct wpa_signal_info *sig_change)
7ee35bf3
PS		 1298{
1299 struct nl_msg *msg;
1300
1301 sig_change->current_noise = 9999;
1302 sig_change->frequency = drv->assoc_freq;
1303
1304 msg = nlmsg_alloc();
1305 if (!msg)
1306 return -ENOMEM;
1307
1308 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1309 NLM_F_DUMP, NL80211_CMD_GET_SURVEY, 0);
1310
1311 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1312
1313 return send_and_recv_msgs(drv, msg, get_link_noise, sig_change);
1314 nla_put_failure:
1315 return -ENOBUFS;
1316}
1317
1318
93910401
JM		 1319static void nl80211_cqm_event(struct wpa_driver_nl80211_data *drv,
1320 struct nlattr *tb[])
1321{
1322 static struct nla_policy cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
1323 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
1324 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U8 },
1325 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
0d7e5a3a 1326 [NL80211_ATTR_CQM_PKT_LOSS_EVENT] = { .type = NLA_U32 },
93910401
JM		 1327 };
1328 struct nlattr *cqm[NL80211_ATTR_CQM_MAX + 1];
1329 enum nl80211_cqm_rssi_threshold_event event;
b625473c 1330 union wpa_event_data ed;
1c5c7273 1331 struct wpa_signal_info sig;
7ee35bf3 1332 int res;
93910401
JM		 1333
1334 if (tb[NL80211_ATTR_CQM] == NULL ||
1335 nla_parse_nested(cqm, NL80211_ATTR_CQM_MAX, tb[NL80211_ATTR_CQM],
1336 cqm_policy)) {
1337 wpa_printf(MSG_DEBUG, "nl80211: Ignore invalid CQM event");
1338 return;
1339 }
1340
0d7e5a3a
JB		 1341 os_memset(&ed, 0, sizeof(ed));
1342
1343 if (cqm[NL80211_ATTR_CQM_PKT_LOSS_EVENT]) {
1344 if (!tb[NL80211_ATTR_MAC])
1345 return;
1346 os_memcpy(ed.low_ack.addr, nla_data(tb[NL80211_ATTR_MAC]),
1347 ETH_ALEN);
1348 wpa_supplicant_event(drv->ctx, EVENT_STATION_LOW_ACK, &ed);
1349 return;
1350 }
1351
93910401
JM		 1352 if (cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] == NULL)
1353 return;
1354 event = nla_get_u32(cqm[NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT]);
b625473c 1355
93910401
JM		 1356 if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH) {
1357 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
1358 "event: RSSI high");
b625473c 1359 ed.signal_change.above_threshold = 1;
93910401
JM		 1360 } else if (event == NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW) {
1361 wpa_printf(MSG_DEBUG, "nl80211: Connection quality monitor "
1362 "event: RSSI low");
b625473c
JM		 1363 ed.signal_change.above_threshold = 0;
1364 } else
1365 return;
1366
60a972a6
JM		 1367 res = nl80211_get_link_signal(drv, &sig);
1368 if (res == 0) {
7ee35bf3
PS		 1369 ed.signal_change.current_signal = sig.current_signal;
1370 ed.signal_change.current_txrate = sig.current_txrate;
1371 wpa_printf(MSG_DEBUG, "nl80211: Signal: %d dBm txrate: %d",
1372 sig.current_signal, sig.current_txrate);
1373 }
1374
1375 res = nl80211_get_link_noise(drv, &sig);
1376 if (res == 0) {
1377 ed.signal_change.current_noise = sig.current_noise;
1378 wpa_printf(MSG_DEBUG, "nl80211: Noise: %d dBm",
1379 sig.current_noise);
60a972a6
JM		 1380 }
1381
b625473c 1382 wpa_supplicant_event(drv->ctx, EVENT_SIGNAL_CHANGE, &ed);
93910401
JM		 1383}
1384
1385
18d2ba08
JM		 1386static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv,
1387 struct nlattr **tb)
1388{
1389 u8 *addr;
1390 union wpa_event_data data;
1391
1392 if (tb[NL80211_ATTR_MAC] == NULL)
1393 return;
1394 addr = nla_data(tb[NL80211_ATTR_MAC]);
1395 wpa_printf(MSG_DEBUG, "nl80211: New station " MACSTR, MAC2STR(addr));
5f310a9e 1396
86957e62 1397 if (is_ap_interface(drv->nlmode) && drv->no_monitor_iface_capab) {
5f310a9e
JM		 1398 u8 *ies = NULL;
1399 size_t ies_len = 0;
1400 if (tb[NL80211_ATTR_IE]) {
1401 ies = nla_data(tb[NL80211_ATTR_IE]);
1402 ies_len = nla_len(tb[NL80211_ATTR_IE]);
1403 }
1404 wpa_hexdump(MSG_DEBUG, "nl80211: Assoc Req IEs", ies, ies_len);
1405 drv_event_assoc(drv->ctx, addr, ies, ies_len, 0);
1406 return;
1407 }
1408
18d2ba08
JM		 1409 if (drv->nlmode != NL80211_IFTYPE_ADHOC)
1410 return;
1411
1412 os_memset(&data, 0, sizeof(data));
1413 os_memcpy(data.ibss_rsn_start.peer, addr, ETH_ALEN);
1414 wpa_supplicant_event(drv->ctx, EVENT_IBSS_RSN_START, &data);
1415}
1416
1417
ef985058
JM		 1418static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv,
1419 struct nlattr **tb)
1420{
1421 u8 *addr;
1422 union wpa_event_data data;
1423
1424 if (tb[NL80211_ATTR_MAC] == NULL)
1425 return;
1426 addr = nla_data(tb[NL80211_ATTR_MAC]);
1427 wpa_printf(MSG_DEBUG, "nl80211: Delete station " MACSTR,
1428 MAC2STR(addr));
5f310a9e 1429
86957e62 1430 if (is_ap_interface(drv->nlmode) && drv->no_monitor_iface_capab) {
5f310a9e
JM		 1431 drv_event_disassoc(drv->ctx, addr);
1432 return;
1433 }
1434
ef985058
JM		 1435 if (drv->nlmode != NL80211_IFTYPE_ADHOC)
1436 return;
1437
1438 os_memset(&data, 0, sizeof(data));
1439 os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN);
1440 wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data);
1441}
1442
1443
b14a210c
JB		 1444static void nl80211_rekey_offload_event(struct wpa_driver_nl80211_data *drv,
1445 struct nlattr **tb)
1446{
1447 struct nlattr *rekey_info[NUM_NL80211_REKEY_DATA];
1448 static struct nla_policy rekey_policy[NUM_NL80211_REKEY_DATA] = {
1449 [NL80211_REKEY_DATA_KEK] = {
1450 .minlen = NL80211_KEK_LEN,
1451 .maxlen = NL80211_KEK_LEN,
1452 },
1453 [NL80211_REKEY_DATA_KCK] = {
1454 .minlen = NL80211_KCK_LEN,
1455 .maxlen = NL80211_KCK_LEN,
1456 },
1457 [NL80211_REKEY_DATA_REPLAY_CTR] = {
1458 .minlen = NL80211_REPLAY_CTR_LEN,
1459 .maxlen = NL80211_REPLAY_CTR_LEN,
1460 },
1461 };
1462 union wpa_event_data data;
1463
1464 if (!tb[NL80211_ATTR_MAC])
1465 return;
1466 if (!tb[NL80211_ATTR_REKEY_DATA])
1467 return;
1468 if (nla_parse_nested(rekey_info, MAX_NL80211_REKEY_DATA,
1469 tb[NL80211_ATTR_REKEY_DATA], rekey_policy))
1470 return;
1471 if (!rekey_info[NL80211_REKEY_DATA_REPLAY_CTR])
1472 return;
1473
1474 os_memset(&data, 0, sizeof(data));
1475 data.driver_gtk_rekey.bssid = nla_data(tb[NL80211_ATTR_MAC]);
1476 wpa_printf(MSG_DEBUG, "nl80211: Rekey offload event for BSSID " MACSTR,
1477 MAC2STR(data.driver_gtk_rekey.bssid));
1478 data.driver_gtk_rekey.replay_ctr =
1479 nla_data(rekey_info[NL80211_REKEY_DATA_REPLAY_CTR]);
1480 wpa_hexdump(MSG_DEBUG, "nl80211: Rekey offload - Replay Counter",
1481 data.driver_gtk_rekey.replay_ctr, NL80211_REPLAY_CTR_LEN);
1482 wpa_supplicant_event(drv->ctx, EVENT_DRIVER_GTK_REKEY, &data);
1483}
1484
1485
c36d5242
JM		 1486static void nl80211_pmksa_candidate_event(struct wpa_driver_nl80211_data *drv,
1487 struct nlattr **tb)
1488{
1489 struct nlattr *cand[NUM_NL80211_PMKSA_CANDIDATE];
1490 static struct nla_policy cand_policy[NUM_NL80211_PMKSA_CANDIDATE] = {
1491 [NL80211_PMKSA_CANDIDATE_INDEX] = { .type = NLA_U32 },
1492 [NL80211_PMKSA_CANDIDATE_BSSID] = {
1493 .minlen = ETH_ALEN,
1494 .maxlen = ETH_ALEN,
1495 },
1496 [NL80211_PMKSA_CANDIDATE_PREAUTH] = { .type = NLA_FLAG },
1497 };
1498 union wpa_event_data data;
1499
1500 if (!tb[NL80211_ATTR_PMKSA_CANDIDATE])
1501 return;
1502 if (nla_parse_nested(cand, MAX_NL80211_PMKSA_CANDIDATE,
1503 tb[NL80211_ATTR_PMKSA_CANDIDATE], cand_policy))
1504 return;
1505 if (!cand[NL80211_PMKSA_CANDIDATE_INDEX] ||
1506 !cand[NL80211_PMKSA_CANDIDATE_BSSID])
1507 return;
1508
1509 os_memset(&data, 0, sizeof(data));
1510 os_memcpy(data.pmkid_candidate.bssid,
1511 nla_data(cand[NL80211_PMKSA_CANDIDATE_BSSID]), ETH_ALEN);
1512 data.pmkid_candidate.index =
1513 nla_get_u32(cand[NL80211_PMKSA_CANDIDATE_INDEX]);
1514 data.pmkid_candidate.preauth =
1515 cand[NL80211_PMKSA_CANDIDATE_PREAUTH] != NULL;
1516 wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data);
1517}
1518
1519
97865538
JM		 1520static int process_event(struct nl_msg *msg, void *arg)
1521{
1522 struct wpa_driver_nl80211_data *drv = arg;
1523 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1524 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1525
1526 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1527 genlmsg_attrlen(gnlh, 0), NULL);
1528
1529 if (tb[NL80211_ATTR_IFINDEX]) {
1530 int ifindex = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
97cfcf64 1531 if (ifindex != drv->ifindex && !have_ifidx(drv, ifindex)) {
97865538
JM		 1532 wpa_printf(MSG_DEBUG, "nl80211: Ignored event (cmd=%d)"
1533 " for foreign interface (ifindex %d)",
1534 gnlh->cmd, ifindex);
1535 return NL_SKIP;
1536 }
1537 }
1538
b1f625e0 1539 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED &&
ad1e68e6
JM		 1540 (gnlh->cmd == NL80211_CMD_NEW_SCAN_RESULTS ||
1541 gnlh->cmd == NL80211_CMD_SCAN_ABORTED)) {
a2e40bb6 1542 wpa_driver_nl80211_set_mode(&drv->first_bss,
b1f625e0
EP		 1543 drv->ap_scan_as_station);
1544 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
ad1e68e6
JM		 1545 }
1546
97865538 1547 switch (gnlh->cmd) {
d942a79e
JM		 1548 case NL80211_CMD_TRIGGER_SCAN:
1549 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger");
1550 break;
d21c63b9
LC		 1551 case NL80211_CMD_START_SCHED_SCAN:
1552 wpa_printf(MSG_DEBUG, "nl80211: Sched scan started");
1553 break;
1554 case NL80211_CMD_SCHED_SCAN_STOPPED:
1555 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stopped");
1556 wpa_supplicant_event(drv->ctx, EVENT_SCHED_SCAN_STOPPED, NULL);
1557 break;
97865538
JM		 1558 case NL80211_CMD_NEW_SCAN_RESULTS:
1559 wpa_printf(MSG_DEBUG, "nl80211: New scan results available");
1560 drv->scan_complete_events = 1;
1561 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
1562 drv->ctx);
8d923a4a 1563 send_scan_event(drv, 0, tb);
97865538 1564 break;
d21c63b9
LC		 1565 case NL80211_CMD_SCHED_SCAN_RESULTS:
1566 wpa_printf(MSG_DEBUG,
1567 "nl80211: New sched scan results available");
1568 send_scan_event(drv, 0, tb);
1569 break;
97865538
JM		 1570 case NL80211_CMD_SCAN_ABORTED:
1571 wpa_printf(MSG_DEBUG, "nl80211: Scan aborted");
1572 /*
1573 * Need to indicate that scan results are available in order
1574 * not to make wpa_supplicant stop its scanning.
1575 */
1576 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
1577 drv->ctx);
8d923a4a 1578 send_scan_event(drv, 1, tb);
97865538 1579 break;
c2a04078
JM		 1580 case NL80211_CMD_AUTHENTICATE:
1581 case NL80211_CMD_ASSOCIATE:
1582 case NL80211_CMD_DEAUTHENTICATE:
1583 case NL80211_CMD_DISASSOCIATE:
bd94971e
JB		 1584 case NL80211_CMD_FRAME:
1585 case NL80211_CMD_FRAME_TX_STATUS:
7d878ca7
JM		 1586 case NL80211_CMD_UNPROT_DEAUTHENTICATE:
1587 case NL80211_CMD_UNPROT_DISASSOCIATE:
da1fb17c 1588 mlme_event(drv, gnlh->cmd, tb[NL80211_ATTR_FRAME],
58f6fbe0
JM		 1589 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT],
1590 tb[NL80211_ATTR_WIPHY_FREQ], tb[NL80211_ATTR_ACK],
1591 tb[NL80211_ATTR_COOKIE]);
c2a04078 1592 break;
da72a1c1
ZY		 1593 case NL80211_CMD_CONNECT:
1594 case NL80211_CMD_ROAM:
1595 mlme_event_connect(drv, gnlh->cmd,
1596 tb[NL80211_ATTR_STATUS_CODE],
1597 tb[NL80211_ATTR_MAC],
1598 tb[NL80211_ATTR_REQ_IE],
1599 tb[NL80211_ATTR_RESP_IE]);
1600 break;
1601 case NL80211_CMD_DISCONNECT:
20f5a4c2
JM		 1602 mlme_event_disconnect(drv, tb[NL80211_ATTR_REASON_CODE],
1603 tb[NL80211_ATTR_MAC]);
da72a1c1 1604 break;
35583f3f
JM		 1605 case NL80211_CMD_MICHAEL_MIC_FAILURE:
1606 mlme_event_michael_mic_failure(drv, tb);
1607 break;
5cc4d64b
JM		 1608 case NL80211_CMD_JOIN_IBSS:
1609 mlme_event_join_ibss(drv, tb);
1610 break;
55777702
JM		 1611 case NL80211_CMD_REMAIN_ON_CHANNEL:
1612 mlme_event_remain_on_channel(drv, 0, tb);
1613 break;
1614 case NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL:
1615 mlme_event_remain_on_channel(drv, 1, tb);
1616 break;
93910401
JM		 1617 case NL80211_CMD_NOTIFY_CQM:
1618 nl80211_cqm_event(drv, tb);
1619 break;
33c5deb8
JM		 1620 case NL80211_CMD_REG_CHANGE:
1621 wpa_printf(MSG_DEBUG, "nl80211: Regulatory domain change");
1622 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED,
1623 NULL);
1624 break;
1625 case NL80211_CMD_REG_BEACON_HINT:
1626 wpa_printf(MSG_DEBUG, "nl80211: Regulatory beacon hint");
1627 wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_LIST_CHANGED,
1628 NULL);
1629 break;
18d2ba08
JM		 1630 case NL80211_CMD_NEW_STATION:
1631 nl80211_new_station_event(drv, tb);
1632 break;
ef985058
JM		 1633 case NL80211_CMD_DEL_STATION:
1634 nl80211_del_station_event(drv, tb);
1635 break;
b14a210c
JB		 1636 case NL80211_CMD_SET_REKEY_OFFLOAD:
1637 nl80211_rekey_offload_event(drv, tb);
1638 break;
c36d5242
JM		 1639 case NL80211_CMD_PMKSA_CANDIDATE:
1640 nl80211_pmksa_candidate_event(drv, tb);
1641 break;
97865538 1642 default:
c2a04078
JM		 1643 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event "
1644 "(cmd=%d)", gnlh->cmd);
97865538
JM		 1645 break;
1646 }
1647
1648 return NL_SKIP;
1649}
1650
1651
1652static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx,
5582a5d1 1653 void *handle)
97865538
JM		 1654{
1655 struct nl_cb *cb;
1656 struct wpa_driver_nl80211_data *drv = eloop_ctx;
1657
1658 wpa_printf(MSG_DEBUG, "nl80211: Event message available");
1659
1660 cb = nl_cb_clone(drv->nl_cb);
1661 if (!cb)
1662 return;
1663 nl_cb_set(cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL);
1664 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, process_event, drv);
5582a5d1 1665 nl_recvmsgs(handle, cb);
97865538
JM		 1666 nl_cb_put(cb);
1667}
1668
1669
6d158490
LR		 1670/**
1671 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain
1672 * @priv: driver_nl80211 private data
1673 * @alpha2_arg: country to which to switch to
1674 * Returns: 0 on success, -1 on failure
1675 *
1676 * This asks nl80211 to set the regulatory domain for given
1677 * country ISO / IEC alpha2.
1678 */
1679static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg)
1680{
a2e40bb6
FF		 1681 struct i802_bss *bss = priv;
1682 struct wpa_driver_nl80211_data *drv = bss->drv;
6d158490
LR		 1683 char alpha2[3];
1684 struct nl_msg *msg;
1685
1686 msg = nlmsg_alloc();
1687 if (!msg)
e785c2ba 1688 return -ENOMEM;
6d158490
LR		 1689
1690 alpha2[0] = alpha2_arg[0];
1691 alpha2[1] = alpha2_arg[1];
1692 alpha2[2] = '\0';
1693
1694 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1695 0, NL80211_CMD_REQ_SET_REG, 0);
1696
1697 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2);
1698 if (send_and_recv_msgs(drv, msg, NULL, NULL))
1699 return -EINVAL;
1700 return 0;
1701nla_put_failure:
1702 return -EINVAL;
1703}
1704
1705
80bc75f1 1706struct wiphy_info_data {
e8b5e24e
JB		 1707 struct wpa_driver_capa *capa;
1708
1709 unsigned int error:1;
80bc75f1
JM		 1710};
1711
1712
1713static int wiphy_info_handler(struct nl_msg *msg, void *arg)
1714{
1715 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1716 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1717 struct wiphy_info_data *info = arg;
9f51b113 1718 int p2p_go_supported = 0, p2p_client_supported = 0;
e8b5e24e
JB		 1719 int p2p_concurrent = 0;
1720 int auth_supported = 0, connect_supported = 0;
1721 struct wpa_driver_capa *capa = info->capa;
7626850d
JB		 1722 static struct nla_policy
1723 iface_combination_policy[NUM_NL80211_IFACE_COMB] = {
1724 [NL80211_IFACE_COMB_LIMITS] = { .type = NLA_NESTED },
1725 [NL80211_IFACE_COMB_MAXNUM] = { .type = NLA_U32 },
1726 [NL80211_IFACE_COMB_STA_AP_BI_MATCH] = { .type = NLA_FLAG },
1727 [NL80211_IFACE_COMB_NUM_CHANNELS] = { .type = NLA_U32 },
1728 },
1729 iface_limit_policy[NUM_NL80211_IFACE_LIMIT] = {
1730 [NL80211_IFACE_LIMIT_TYPES] = { .type = NLA_NESTED },
1731 [NL80211_IFACE_LIMIT_MAX] = { .type = NLA_U32 },
1732 };
80bc75f1
JM		 1733
1734 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1735 genlmsg_attrlen(gnlh, 0), NULL);
1736
1737 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS])
e8b5e24e 1738 capa->max_scan_ssids =
80bc75f1
JM		 1739 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]);
1740
d21c63b9 1741 if (tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS])
e8b5e24e 1742 capa->max_sched_scan_ssids =
d21c63b9
LC		 1743 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS]);
1744
bd525934 1745 if (tb[NL80211_ATTR_MAX_MATCH_SETS])
e8b5e24e 1746 capa->max_match_sets =
bd525934
LC		 1747 nla_get_u8(tb[NL80211_ATTR_MAX_MATCH_SETS]);
1748
1581b38b
JM		 1749 if (tb[NL80211_ATTR_SUPPORTED_IFTYPES]) {
1750 struct nlattr *nl_mode;
1751 int i;
1752 nla_for_each_nested(nl_mode,
1753 tb[NL80211_ATTR_SUPPORTED_IFTYPES], i) {
58708b3b 1754 switch (nla_type(nl_mode)) {
9f51b113 1755 case NL80211_IFTYPE_AP:
e8b5e24e 1756 capa->flags |= WPA_DRIVER_FLAGS_AP;
1581b38b 1757 break;
9f51b113
JB		 1758 case NL80211_IFTYPE_P2P_GO:
1759 p2p_go_supported = 1;
1760 break;
1761 case NL80211_IFTYPE_P2P_CLIENT:
1762 p2p_client_supported = 1;
1763 break;
1581b38b
JM		 1764 }
1765 }
1766 }
1767
7626850d
JB		 1768 if (tb[NL80211_ATTR_INTERFACE_COMBINATIONS]) {
1769 struct nlattr *nl_combi;
1770 int rem_combi;
1771
1772 nla_for_each_nested(nl_combi,
1773 tb[NL80211_ATTR_INTERFACE_COMBINATIONS],
1774 rem_combi) {
1775 struct nlattr *tb_comb[NUM_NL80211_IFACE_COMB];
1776 struct nlattr *tb_limit[NUM_NL80211_IFACE_LIMIT];
1777 struct nlattr *nl_limit, *nl_mode;
1778 int err, rem_limit, rem_mode;
1779 int combination_has_p2p = 0, combination_has_mgd = 0;
1780
1781 err = nla_parse_nested(tb_comb, MAX_NL80211_IFACE_COMB,
1782 nl_combi,
1783 iface_combination_policy);
1784 if (err || !tb_comb[NL80211_IFACE_COMB_LIMITS] ||
1785 !tb_comb[NL80211_IFACE_COMB_MAXNUM] ||
1786 !tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS])
1787 goto broken_combination;
1788
1789 nla_for_each_nested(nl_limit,
1790 tb_comb[NL80211_IFACE_COMB_LIMITS],
1791 rem_limit) {
1792 err = nla_parse_nested(tb_limit,
1793 MAX_NL80211_IFACE_LIMIT,
1794 nl_limit,
1795 iface_limit_policy);
1796 if (err ||
1797 !tb_limit[NL80211_IFACE_LIMIT_TYPES])
1798 goto broken_combination;
1799
1800 nla_for_each_nested(
1801 nl_mode,
1802 tb_limit[NL80211_IFACE_LIMIT_TYPES],
1803 rem_mode) {
1804 int ift = nla_type(nl_mode);
1805 if (ift == NL80211_IFTYPE_P2P_GO ||
1806 ift == NL80211_IFTYPE_P2P_CLIENT)
1807 combination_has_p2p = 1;
1808 if (ift == NL80211_IFTYPE_STATION)
1809 combination_has_mgd = 1;
1810 }
1811 if (combination_has_p2p && combination_has_mgd)
1812 break;
1813 }
1814
1815 if (combination_has_p2p && combination_has_mgd) {
e8b5e24e 1816 p2p_concurrent = 1;
7626850d
JB		 1817 break;
1818 }
1819
1820broken_combination:
1821 ;
1822 }
1823 }
1824
93d11400
ZY		 1825 if (tb[NL80211_ATTR_SUPPORTED_COMMANDS]) {
1826 struct nlattr *nl_cmd;
1827 int i;
1828
1829 nla_for_each_nested(nl_cmd,
1830 tb[NL80211_ATTR_SUPPORTED_COMMANDS], i) {
e8b5e24e
JB		 1831 switch (nla_get_u32(nl_cmd)) {
1832 case NL80211_CMD_AUTHENTICATE:
1833 auth_supported = 1;
1834 break;
1835 case NL80211_CMD_CONNECT:
1836 connect_supported = 1;
1837 break;
1838 case NL80211_CMD_START_SCHED_SCAN:
1839 capa->sched_scan_supported = 1;
1840 break;
1841 }
93d11400
ZY		 1842 }
1843 }
1844
e8b5e24e
JB		 1845 if (tb[NL80211_ATTR_OFFCHANNEL_TX_OK]) {
1846 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based "
1847 "off-channel TX");
1848 capa->flags |= WPA_DRIVER_FLAGS_OFFCHANNEL_TX;
1849 }
1850
1851 if (tb[NL80211_ATTR_ROAM_SUPPORT]) {
1852 wpa_printf(MSG_DEBUG, "nl80211: Using driver-based roaming");
1853 capa->flags |= WPA_DRIVER_FLAGS_BSS_SELECTION;
1854 }
5dfca53f 1855
e8b5e24e
JB		 1856 /* default to 5000 since early versions of mac80211 don't set it */
1857 capa->max_remain_on_chan = 5000;
004ba773 1858
89e07afb 1859 if (tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION])
e8b5e24e 1860 capa->max_remain_on_chan =
89e07afb
JB		 1861 nla_get_u32(tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]);
1862
e8b5e24e
JB		 1863 if (auth_supported)
1864 capa->flags |= WPA_DRIVER_FLAGS_SME;
1865 else if (!connect_supported) {
1866 wpa_printf(MSG_INFO, "nl80211: Driver does not support "
1867 "authentication/association or connect commands");
1868 info->error = 1;
1869 }
1870
1871 if (p2p_go_supported && p2p_client_supported)
1872 capa->flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE;
1873 if (p2p_concurrent) {
1874 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
1875 "interface (driver advertised support)");
1876 capa->flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
1877 capa->flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
1878 }
1879
80bc75f1
JM		 1880 return NL_SKIP;
1881}
1882
1883
1884static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv,
1885 struct wiphy_info_data *info)
1886{
1887 struct nl_msg *msg;
1888
1889 os_memset(info, 0, sizeof(*info));
e8b5e24e 1890 info->capa = &drv->capa;
89e07afb 1891
80bc75f1
JM		 1892 msg = nlmsg_alloc();
1893 if (!msg)
1894 return -1;
1895
1896 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1897 0, NL80211_CMD_GET_WIPHY, 0);
1898
a2e40bb6 1899 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->first_bss.ifindex);
80bc75f1
JM		 1900
1901 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info) == 0)
1902 return 0;
1903 msg = NULL;
1904nla_put_failure:
1905 nlmsg_free(msg);
1906 return -1;
1907}
1908
1909
93d11400 1910static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
80bc75f1
JM		 1911{
1912 struct wiphy_info_data info;
1913 if (wpa_driver_nl80211_get_info(drv, &info))
93d11400 1914 return -1;
e8b5e24e
JB		 1915
1916 if (info.error)
1917 return -1;
1918
80bc75f1 1919 drv->has_capability = 1;
1b2a72e8
JM		 1920 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */
1921 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
1922 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
1923 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
1924 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
1925 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 |
1926 WPA_DRIVER_CAPA_ENC_WEP104 |
1927 WPA_DRIVER_CAPA_ENC_TKIP |
1928 WPA_DRIVER_CAPA_ENC_CCMP;
291b6068
JM		 1929 drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
1930 WPA_DRIVER_AUTH_SHARED |
1931 WPA_DRIVER_AUTH_LEAP;
1b2a72e8 1932
871f4dd0 1933 drv->capa.flags |= WPA_DRIVER_FLAGS_SANE_ERROR_CODES;
0194fedb 1934 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE;
2fee890a 1935 drv->capa.flags |= WPA_DRIVER_FLAGS_EAPOL_TX_STATUS;
4dc03726 1936 drv->capa.flags |= WPA_DRIVER_FLAGS_DEAUTH_TX_STATUS;
0194fedb 1937
93d11400 1938 return 0;
80bc75f1
JM		 1939}
1940
1941
ba2d0d7d 1942static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv)
3f5285e8 1943{
9fff9fdc 1944 int ret;
3f5285e8 1945
9fff9fdc 1946 /* Initialize generic netlink and nl80211 */
3f5285e8
JM		 1947
1948 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
1949 if (drv->nl_cb == NULL) {
1950 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
1951 "callbacks");
1952 goto err1;
1953 }
1954
a65a9aed 1955 drv->nl_handle = nl80211_handle_alloc(drv->nl_cb);
3f5285e8
JM		 1956 if (drv->nl_handle == NULL) {
1957 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
1958 "callbacks");
1959 goto err2;
1960 }
1961
a65a9aed 1962 drv->nl_handle_event = nl80211_handle_alloc(drv->nl_cb);
335ce76b
JM		 1963 if (drv->nl_handle_event == NULL) {
1964 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
1965 "callbacks (event)");
1966 goto err2b;
1967 }
1968
3f5285e8
JM		 1969 if (genl_connect(drv->nl_handle)) {
1970 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
1971 "netlink");
1972 goto err3;
1973 }
1974
335ce76b
JM		 1975 if (genl_connect(drv->nl_handle_event)) {
1976 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
1977 "netlink (event)");
1978 goto err3;
1979 }
1980
9fff9fdc
JM		 1981 if (genl_ctrl_alloc_cache(drv->nl_handle, &drv->nl_cache) < 0) {
1982 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1983 "netlink cache");
1984 goto err3;
1985 }
335ce76b
JM		 1986 if (genl_ctrl_alloc_cache(drv->nl_handle_event, &drv->nl_cache_event) <
1987 0) {
1988 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1989 "netlink cache (event)");
1990 goto err3b;
1991 }
9fff9fdc 1992
3f5285e8
JM		 1993 drv->nl80211 = genl_ctrl_search_by_name(drv->nl_cache, "nl80211");
1994 if (drv->nl80211 == NULL) {
1995 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not "
1996 "found");
1997 goto err4;
1998 }
1999
97865538
JM		 2000 ret = nl_get_multicast_id(drv, "nl80211", "scan");
2001 if (ret >= 0)
335ce76b 2002 ret = nl_socket_add_membership(drv->nl_handle_event, ret);
97865538
JM		 2003 if (ret < 0) {
2004 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
2005 "membership for scan events: %d (%s)",
2006 ret, strerror(-ret));
2007 goto err4;
2008 }
c2a04078
JM		 2009
2010 ret = nl_get_multicast_id(drv, "nl80211", "mlme");
2011 if (ret >= 0)
335ce76b 2012 ret = nl_socket_add_membership(drv->nl_handle_event, ret);
c2a04078
JM		 2013 if (ret < 0) {
2014 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
2015 "membership for mlme events: %d (%s)",
2016 ret, strerror(-ret));
2017 goto err4;
2018 }
c2a04078 2019
33c5deb8
JM		 2020 ret = nl_get_multicast_id(drv, "nl80211", "regulatory");
2021 if (ret >= 0)
2022 ret = nl_socket_add_membership(drv->nl_handle_event, ret);
2023 if (ret < 0) {
2024 wpa_printf(MSG_DEBUG, "nl80211: Could not add multicast "
2025 "membership for regulatory events: %d (%s)",
2026 ret, strerror(-ret));
2027 /* Continue without regulatory events */
2028 }
2029
335ce76b 2030 eloop_register_read_sock(nl_socket_get_fd(drv->nl_handle_event),
5582a5d1
JB		 2031 wpa_driver_nl80211_event_receive, drv,
2032 drv->nl_handle_event);
97865538 2033
9fff9fdc
JM		 2034 return 0;
2035
2036err4:
335ce76b
JM		 2037 nl_cache_free(drv->nl_cache_event);
2038err3b:
9fff9fdc
JM		 2039 nl_cache_free(drv->nl_cache);
2040err3:
a65a9aed 2041 nl80211_handle_destroy(drv->nl_handle_event);
335ce76b 2042err2b:
a65a9aed 2043 nl80211_handle_destroy(drv->nl_handle);
9fff9fdc
JM		 2044err2:
2045 nl_cb_put(drv->nl_cb);
2046err1:
2047 return -1;
2048}
2049
2050
8401a6b0
JM		 2051static void wpa_driver_nl80211_rfkill_blocked(void *ctx)
2052{
8401a6b0 2053 wpa_printf(MSG_DEBUG, "nl80211: RFKILL blocked");
a63063b4
JM		 2054 /*
2055 * This may be for any interface; use ifdown event to disable
2056 * interface.
2057 */
8401a6b0
JM		 2058}
2059
2060
2061static void wpa_driver_nl80211_rfkill_unblocked(void *ctx)
2062{
2063 struct wpa_driver_nl80211_data *drv = ctx;
2064 wpa_printf(MSG_DEBUG, "nl80211: RFKILL unblocked");
2065 if (linux_set_iface_flags(drv->ioctl_sock, drv->first_bss.ifname, 1)) {
2066 wpa_printf(MSG_DEBUG, "nl80211: Could not set interface UP "
2067 "after rfkill unblock");
2068 return;
2069 }
a63063b4 2070 /* rtnetlink ifup handler will report interface as enabled */
8401a6b0
JM		 2071}
2072
2073
6859f1cb
BG		 2074static void nl80211_get_phy_name(struct wpa_driver_nl80211_data *drv)
2075{
2076 /* Find phy (radio) to which this interface belongs */
2077 char buf[90], *pos;
2078 int f, rv;
2079
2080 drv->phyname[0] = '\0';
2081 snprintf(buf, sizeof(buf) - 1, "/sys/class/net/%s/phy80211/name",
2082 drv->first_bss.ifname);
2083 f = open(buf, O_RDONLY);
2084 if (f < 0) {
2085 wpa_printf(MSG_DEBUG, "Could not open file %s: %s",
2086 buf, strerror(errno));
2087 return;
2088 }
2089
2090 rv = read(f, drv->phyname, sizeof(drv->phyname) - 1);
2091 close(f);
2092 if (rv < 0) {
2093 wpa_printf(MSG_DEBUG, "Could not read file %s: %s",
2094 buf, strerror(errno));
2095 return;
2096 }
2097
2098 drv->phyname[rv] = '\0';
2099 pos = os_strchr(drv->phyname, '\n');
2100 if (pos)
2101 *pos = '\0';
2102 wpa_printf(MSG_DEBUG, "nl80211: interface %s in phy %s",
2103 drv->first_bss.ifname, drv->phyname);
2104}
2105
2106
f10bfc9a
JM		 2107#ifdef CONFIG_AP
2108static void nl80211_l2_read(void *ctx, const u8 *src_addr, const u8 *buf,
2109 size_t len)
2110{
2111 wpa_printf(MSG_DEBUG, "nl80211: l2_packet read %u",
2112 (unsigned int) len);
2113}
2114#endif /* CONFIG_AP */
2115
2116
9fff9fdc
JM		 2117/**
2118 * wpa_driver_nl80211_init - Initialize nl80211 driver interface
2119 * @ctx: context to be used when calling wpa_supplicant functions,
2120 * e.g., wpa_supplicant_event()
2121 * @ifname: interface name, e.g., wlan0
f2ed8023 2122 * @global_priv: private driver global data from global_init()
9fff9fdc
JM		 2123 * Returns: Pointer to private data, %NULL on failure
2124 */
f2ed8023
JM		 2125static void * wpa_driver_nl80211_init(void *ctx, const char *ifname,
2126 void *global_priv)
9fff9fdc 2127{
9fff9fdc 2128 struct wpa_driver_nl80211_data *drv;
08063178 2129 struct netlink_config *cfg;
8401a6b0 2130 struct rfkill_config *rcfg;
a2e40bb6 2131 struct i802_bss *bss;
9fff9fdc
JM		 2132
2133 drv = os_zalloc(sizeof(*drv));
2134 if (drv == NULL)
2135 return NULL;
f2ed8023 2136 drv->global = global_priv;
9fff9fdc 2137 drv->ctx = ctx;
a2e40bb6
FF		 2138 bss = &drv->first_bss;
2139 bss->drv = drv;
2140 os_strlcpy(bss->ifname, ifname, sizeof(bss->ifname));
9fff9fdc
JM		 2141 drv->monitor_ifidx = -1;
2142 drv->monitor_sock = -1;
bbaf0837 2143 drv->ioctl_sock = -1;
b1f625e0 2144 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
9fff9fdc 2145
ba2d0d7d 2146 if (wpa_driver_nl80211_init_nl(drv)) {
bbaf0837
JM		 2147 os_free(drv);
2148 return NULL;
2149 }
9fff9fdc 2150
6859f1cb
BG		 2151 nl80211_get_phy_name(drv);
2152
3f5285e8
JM		 2153 drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
2154 if (drv->ioctl_sock < 0) {
2155 perror("socket(PF_INET,SOCK_DGRAM)");
bbaf0837 2156 goto failed;
3f5285e8
JM		 2157 }
2158
08063178
JM		 2159 cfg = os_zalloc(sizeof(*cfg));
2160 if (cfg == NULL)
2161 goto failed;
2162 cfg->ctx = drv;
2163 cfg->newlink_cb = wpa_driver_nl80211_event_rtm_newlink;
2164 cfg->dellink_cb = wpa_driver_nl80211_event_rtm_dellink;
2165 drv->netlink = netlink_init(cfg);
2166 if (drv->netlink == NULL) {
2167 os_free(cfg);
2168 goto failed;
2169 }
8401a6b0
JM		 2170
2171 rcfg = os_zalloc(sizeof(*rcfg));
2172 if (rcfg == NULL)
2173 goto failed;
2174 rcfg->ctx = drv;
2175 os_strlcpy(rcfg->ifname, ifname, sizeof(rcfg->ifname));
2176 rcfg->blocked_cb = wpa_driver_nl80211_rfkill_blocked;
2177 rcfg->unblocked_cb = wpa_driver_nl80211_rfkill_unblocked;
2178 drv->rfkill = rfkill_init(rcfg);
52169389 2179 if (drv->rfkill == NULL) {
8401a6b0 2180 wpa_printf(MSG_DEBUG, "nl80211: RFKILL status not available");
52169389
JM		 2181 os_free(rcfg);
2182 }
8401a6b0 2183
08063178 2184 if (wpa_driver_nl80211_finish_drv_init(drv))
bbaf0837 2185 goto failed;
7524cfb1 2186
f10bfc9a
JM		 2187#ifdef CONFIG_AP
2188 drv->l2 = l2_packet_init(ifname, NULL, ETH_P_EAPOL,
2189 nl80211_l2_read, drv, 0);
2190#endif /* CONFIG_AP */
2191
c4bb8817
JB		 2192 if (drv->global)
2193 dl_list_add(&drv->global->interfaces, &drv->list);
2194
a2e40bb6 2195 return bss;
7524cfb1 2196
bbaf0837 2197failed:
8401a6b0 2198 rfkill_deinit(drv->rfkill);
08063178 2199 netlink_deinit(drv->netlink);
bbaf0837
JM		 2200 if (drv->ioctl_sock >= 0)
2201 close(drv->ioctl_sock);
2202
7524cfb1 2203 genl_family_put(drv->nl80211);
7524cfb1 2204 nl_cache_free(drv->nl_cache);
a65a9aed 2205 nl80211_handle_destroy(drv->nl_handle);
7524cfb1 2206 nl_cb_put(drv->nl_cb);
05ba8690 2207 eloop_unregister_read_sock(nl_socket_get_fd(drv->nl_handle_event));
bbaf0837 2208
7524cfb1
JM		 2209 os_free(drv);
2210 return NULL;
2211}
2212
2213
bd94971e 2214static int nl80211_register_frame(struct wpa_driver_nl80211_data *drv,
5582a5d1 2215 struct nl_handle *nl_handle,
bd94971e 2216 u16 type, const u8 *match, size_t match_len)
58f6fbe0
JM		 2217{
2218 struct nl_msg *msg;
2219 int ret = -1;
2220
2221 msg = nlmsg_alloc();
2222 if (!msg)
2223 return -1;
2224
2225 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
2226 NL80211_CMD_REGISTER_ACTION, 0);
2227
2228 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
bd94971e 2229 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, type);
58f6fbe0
JM		 2230 NLA_PUT(msg, NL80211_ATTR_FRAME_MATCH, match_len, match);
2231
5582a5d1 2232 ret = send_and_recv(drv, nl_handle, msg, NULL, NULL);
58f6fbe0
JM		 2233 msg = NULL;
2234 if (ret) {
5582a5d1
JB		 2235 wpa_printf(MSG_DEBUG, "nl80211: Register frame command "
2236 "failed (type=%u): ret=%d (%s)",
2237 type, ret, strerror(-ret));
2238 wpa_hexdump(MSG_DEBUG, "nl80211: Register frame match",
58f6fbe0
JM		 2239 match, match_len);
2240 goto nla_put_failure;
2241 }
2242 ret = 0;
2243nla_put_failure:
2244 nlmsg_free(msg);
2245 return ret;
2246}
2247
2248
bd94971e
JB		 2249static int nl80211_register_action_frame(struct wpa_driver_nl80211_data *drv,
2250 const u8 *match, size_t match_len)
2251{
2252 u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_ACTION << 4);
5582a5d1
JB		 2253 return nl80211_register_frame(drv, drv->nl_handle_event,
2254 type, match, match_len);
bd94971e
JB		 2255}
2256
2257
58f6fbe0
JM		 2258static int nl80211_register_action_frames(struct wpa_driver_nl80211_data *drv)
2259{
4fe9fa0d 2260#if defined(CONFIG_P2P) || defined(CONFIG_INTERWORKING)
046b26a2
JM		 2261 /* GAS Initial Request */
2262 if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0a", 2) < 0)
2263 return -1;
2264 /* GAS Initial Response */
2265 if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0b", 2) < 0)
2266 return -1;
18708aad
JM		 2267 /* GAS Comeback Request */
2268 if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0c", 2) < 0)
2269 return -1;
2270 /* GAS Comeback Response */
2271 if (nl80211_register_action_frame(drv, (u8 *) "\x04\x0d", 2) < 0)
2272 return -1;
4fe9fa0d
JM		 2273#endif /* CONFIG_P2P || CONFIG_INTERWORKING */
2274#ifdef CONFIG_P2P
046b26a2
JM		 2275 /* P2P Public Action */
2276 if (nl80211_register_action_frame(drv,
2277 (u8 *) "\x04\x09\x50\x6f\x9a\x09",
2278 6) < 0)
2279 return -1;
2280 /* P2P Action */
2281 if (nl80211_register_action_frame(drv,
2282 (u8 *) "\x7f\x50\x6f\x9a\x09",
2283 5) < 0)
2284 return -1;
2285#endif /* CONFIG_P2P */
7d878ca7
JM		 2286#ifdef CONFIG_IEEE80211W
2287 /* SA Query Response */
2288 if (nl80211_register_action_frame(drv, (u8 *) "\x08\x01", 2) < 0)
2289 return -1;
2290#endif /* CONFIG_IEEE80211W */
046b26a2 2291
7b90c16a
JM		 2292 /* FT Action frames */
2293 if (nl80211_register_action_frame(drv, (u8 *) "\x06", 1) < 0)
2294 return -1;
2295 else
2296 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_FT |
2297 WPA_DRIVER_CAPA_KEY_MGMT_FT_PSK;
2298
71269b37
JM		 2299 /* WNM - BSS Transition Management Request */
2300 if (nl80211_register_action_frame(drv, (u8 *) "\x0a\x07", 2) < 0)
2301 return -1;
2302
58f6fbe0
JM		 2303 return 0;
2304}
2305
2306
8401a6b0
JM		 2307static void wpa_driver_nl80211_send_rfkill(void *eloop_ctx, void *timeout_ctx)
2308{
2309 wpa_supplicant_event(timeout_ctx, EVENT_INTERFACE_DISABLED, NULL);
2310}
2311
2312
362f781e 2313static int
7524cfb1
JM		 2314wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv)
2315{
a2e40bb6 2316 struct i802_bss *bss = &drv->first_bss;
8401a6b0 2317 int send_rfkill_event = 0;
a2e40bb6
FF		 2318
2319 drv->ifindex = if_nametoindex(bss->ifname);
2320 drv->first_bss.ifindex = drv->ifindex;
a87c9d96 2321
bbaf0837 2322#ifndef HOSTAPD
ff6a158b
JM		 2323 /*
2324 * Make sure the interface starts up in station mode unless this is a
2325 * dynamically added interface (e.g., P2P) that was already configured
2326 * with proper iftype.
2327 */
2328 if ((drv->global == NULL ||
2329 drv->ifindex != drv->global->if_add_ifindex) &&
b1f625e0 2330 wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION) < 0) {
6e8183d7 2331 wpa_printf(MSG_ERROR, "nl80211: Could not configure driver to "
a87c9d96 2332 "use managed mode");
6e8183d7 2333 return -1;
a87c9d96
JM		 2334 }
2335
a2e40bb6 2336 if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 1)) {
8401a6b0
JM		 2337 if (rfkill_is_blocked(drv->rfkill)) {
2338 wpa_printf(MSG_DEBUG, "nl80211: Could not yet enable "
2339 "interface '%s' due to rfkill",
2340 bss->ifname);
a63063b4 2341 drv->if_disabled = 1;
8401a6b0
JM		 2342 send_rfkill_event = 1;
2343 } else {
2344 wpa_printf(MSG_ERROR, "nl80211: Could not set "
2345 "interface '%s' UP", bss->ifname);
2346 return -1;
2347 }
362f781e 2348 }
3f5285e8 2349
08063178 2350 netlink_send_oper_ifla(drv->netlink, drv->ifindex,
e2d02c29 2351 1, IF_OPER_DORMANT);
bbaf0837 2352#endif /* HOSTAPD */
362f781e 2353
2fee890a
JM		 2354 if (wpa_driver_nl80211_capa(drv))
2355 return -1;
2356
2136f480
MH		 2357 if (linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, drv->addr))
2358 return -1;
f2ed8023 2359
7b90c16a
JM		 2360 if (nl80211_register_action_frames(drv) < 0) {
2361 wpa_printf(MSG_DEBUG, "nl80211: Failed to register Action "
2362 "frame processing - ignore for now");
2363 /*
2364 * Older kernel versions did not support this, so ignore the
2365 * error for now. Some functionality may not be available
2366 * because of this.
2367 */
2368 }
58f6fbe0 2369
8401a6b0
JM		 2370 if (send_rfkill_event) {
2371 eloop_register_timeout(0, 0, wpa_driver_nl80211_send_rfkill,
2372 drv, drv->ctx);
2373 }
2374
362f781e 2375 return 0;
3f5285e8
JM		 2376}
2377
2378
8a27af5c
JM		 2379static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv)
2380{
2381 struct nl_msg *msg;
2382
2383 msg = nlmsg_alloc();
2384 if (!msg)
2385 return -ENOMEM;
2386
2387 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2388 0, NL80211_CMD_DEL_BEACON, 0);
2389 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2390
2391 return send_and_recv_msgs(drv, msg, NULL, NULL);
2392 nla_put_failure:
2393 return -ENOBUFS;
2394}
8a27af5c
JM		 2395
2396
3f5285e8 2397/**
7e5ba1b9
JM		 2398 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface
2399 * @priv: Pointer to private nl80211 data from wpa_driver_nl80211_init()
3f5285e8
JM		 2400 *
2401 * Shut down driver interface and processing of driver events. Free
2402 * private data buffer if one was allocated in wpa_driver_nl80211_init().
2403 */
7e5ba1b9 2404static void wpa_driver_nl80211_deinit(void *priv)
3f5285e8 2405{
a2e40bb6
FF		 2406 struct i802_bss *bss = priv;
2407 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8 2408
f10bfc9a
JM		 2409#ifdef CONFIG_AP
2410 if (drv->l2)
2411 l2_packet_deinit(drv->l2);
2412#endif /* CONFIG_AP */
2413
5582a5d1
JB		 2414 if (drv->nl_handle_preq)
2415 wpa_driver_nl80211_probe_req_report(bss, 0);
e17a2477
JM		 2416 if (bss->added_if_into_bridge) {
2417 if (linux_br_del_if(drv->ioctl_sock, bss->brname, bss->ifname)
94627f6c
JM		 2418 < 0)
2419 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
2420 "interface %s from bridge %s: %s",
e17a2477 2421 bss->ifname, bss->brname, strerror(errno));
94627f6c 2422 }
e17a2477
JM		 2423 if (bss->added_bridge) {
2424 if (linux_br_del(drv->ioctl_sock, bss->brname) < 0)
94627f6c
JM		 2425 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
2426 "bridge %s: %s",
e17a2477 2427 bss->brname, strerror(errno));
94627f6c
JM		 2428 }
2429
460456f8 2430 nl80211_remove_monitor_interface(drv);
8a27af5c 2431
b1f625e0 2432 if (is_ap_interface(drv->nlmode))
8a27af5c 2433 wpa_driver_nl80211_del_beacon(drv);
0915d02c 2434
bbaf0837
JM		 2435#ifdef HOSTAPD
2436 if (drv->last_freq_ht) {
2437 /* Clear HT flags from the driver */
2438 struct hostapd_freq_params freq;
2439 os_memset(&freq, 0, sizeof(freq));
2440 freq.freq = drv->last_freq;
2441 i802_set_freq(priv, &freq);
2442 }
2443
bbaf0837
JM		 2444 if (drv->eapol_sock >= 0) {
2445 eloop_unregister_read_sock(drv->eapol_sock);
2446 close(drv->eapol_sock);
2447 }
2448
2449 if (drv->if_indices != drv->default_if_indices)
2450 os_free(drv->if_indices);
1b648c7e 2451#endif /* HOSTAPD */
3f5285e8 2452
4e5cb1a3
JM		 2453 if (drv->disable_11b_rates)
2454 nl80211_disable_11b_rates(drv, drv->ifindex, 0);
2455
08063178
JM		 2456 netlink_send_oper_ifla(drv->netlink, drv->ifindex, 0, IF_OPER_UP);
2457 netlink_deinit(drv->netlink);
8401a6b0 2458 rfkill_deinit(drv->rfkill);
3f5285e8 2459
bbaf0837
JM		 2460 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
2461
a2e40bb6 2462 (void) linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 0);
b1f625e0 2463 wpa_driver_nl80211_set_mode(bss, NL80211_IFTYPE_STATION);
3f5285e8 2464
bbaf0837
JM		 2465 if (drv->ioctl_sock >= 0)
2466 close(drv->ioctl_sock);
3f5285e8 2467
335ce76b 2468 eloop_unregister_read_sock(nl_socket_get_fd(drv->nl_handle_event));
3f5285e8
JM		 2469 genl_family_put(drv->nl80211);
2470 nl_cache_free(drv->nl_cache);
335ce76b 2471 nl_cache_free(drv->nl_cache_event);
a65a9aed
JB		 2472 nl80211_handle_destroy(drv->nl_handle);
2473 nl80211_handle_destroy(drv->nl_handle_event);
3f5285e8
JM		 2474 nl_cb_put(drv->nl_cb);
2475
3812464c
JM		 2476 os_free(drv->filter_ssids);
2477
f2ed8023
JM		 2478 if (drv->global)
2479 dl_list_del(&drv->list);
2480
3f5285e8
JM		 2481 os_free(drv);
2482}
2483
2484
2485/**
2486 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion
ad1e68e6 2487 * @eloop_ctx: Driver private data
3f5285e8
JM		 2488 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init()
2489 *
2490 * This function can be used as registered timeout when starting a scan to
2491 * generate a scan completed event if the driver does not report this.
2492 */
2493static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx)
2494{
ad1e68e6 2495 struct wpa_driver_nl80211_data *drv = eloop_ctx;
b1f625e0 2496 if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED) {
a2e40bb6 2497 wpa_driver_nl80211_set_mode(&drv->first_bss,
b1f625e0
EP		 2498 drv->ap_scan_as_station);
2499 drv->ap_scan_as_station = NL80211_IFTYPE_UNSPECIFIED;
ad1e68e6 2500 }
3f5285e8
JM		 2501 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results");
2502 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL);
2503}
2504
2505
2506/**
2507 * wpa_driver_nl80211_scan - Request the driver to initiate scan
ad1e68e6 2508 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
6a1063e0 2509 * @params: Scan parameters
3f5285e8
JM		 2510 * Returns: 0 on success, -1 on failure
2511 */
6a1063e0
JM		 2512static int wpa_driver_nl80211_scan(void *priv,
2513 struct wpa_driver_scan_params *params)
3f5285e8 2514{
a2e40bb6
FF		 2515 struct i802_bss *bss = priv;
2516 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8 2517 int ret = 0, timeout;
47185fc7 2518 struct nl_msg *msg, *ssids, *freqs, *rates;
6a1063e0 2519 size_t i;
3f5285e8 2520
0e75527f
JM		 2521 msg = nlmsg_alloc();
2522 ssids = nlmsg_alloc();
d3a98225 2523 freqs = nlmsg_alloc();
47185fc7
RM		 2524 rates = nlmsg_alloc();
2525 if (!msg || !ssids || !freqs || !rates) {
0e75527f
JM		 2526 nlmsg_free(msg);
2527 nlmsg_free(ssids);
d3a98225 2528 nlmsg_free(freqs);
47185fc7 2529 nlmsg_free(rates);
3f5285e8
JM		 2530 return -1;
2531 }
2532
3812464c
JM		 2533 os_free(drv->filter_ssids);
2534 drv->filter_ssids = params->filter_ssids;
2535 params->filter_ssids = NULL;
2536 drv->num_filter_ssids = params->num_filter_ssids;
2537
0e75527f
JM		 2538 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
2539 NL80211_CMD_TRIGGER_SCAN, 0);
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
2669 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
2670 NL80211_CMD_START_SCHED_SCAN, 0);
2671
2672 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2673
2674 NLA_PUT_U32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, interval);
2675
bd525934
LC		 2676 if (drv->num_filter_ssids) {
2677 match_sets = nlmsg_alloc();
2678
2679 for (i = 0; i < drv->num_filter_ssids; i++) {
2680 wpa_hexdump_ascii(MSG_MSGDUMP,
2681 "nl80211: Sched scan filter SSID",
2682 drv->filter_ssids[i].ssid,
2683 drv->filter_ssids[i].ssid_len);
2684
2685 match_set_ssid = nlmsg_alloc();
2686 nla_put(match_set_ssid,
2687 NL80211_ATTR_SCHED_SCAN_MATCH_SSID,
2688 drv->filter_ssids[i].ssid_len,
2689 drv->filter_ssids[i].ssid);
2690
2691 nla_put_nested(match_sets, i + 1, match_set_ssid);
2692
2693 nlmsg_free(match_set_ssid);
2694 }
2695
2696 nla_put_nested(msg, NL80211_ATTR_SCHED_SCAN_MATCH,
2697 match_sets);
2698 nlmsg_free(match_sets);
2699 }
2700
d21c63b9
LC		 2701 for (i = 0; i < params->num_ssids; i++) {
2702 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Sched scan SSID",
2703 params->ssids[i].ssid,
2704 params->ssids[i].ssid_len);
2705 NLA_PUT(ssids, i + 1, params->ssids[i].ssid_len,
2706 params->ssids[i].ssid);
2707 }
2708 if (params->num_ssids)
2709 nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids);
2710
2711 if (params->extra_ies) {
2712 wpa_hexdump_ascii(MSG_MSGDUMP, "nl80211: Sched scan extra IEs",
2713 params->extra_ies, params->extra_ies_len);
2714 NLA_PUT(msg, NL80211_ATTR_IE, params->extra_ies_len,
2715 params->extra_ies);
2716 }
2717
2718 if (params->freqs) {
2719 for (i = 0; params->freqs[i]; i++) {
2720 wpa_printf(MSG_MSGDUMP, "nl80211: Scan frequency %u "
2721 "MHz", params->freqs[i]);
2722 NLA_PUT_U32(freqs, i + 1, params->freqs[i]);
2723 }
2724 nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES, freqs);
2725 }
2726
2727 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2728
2729 /* TODO: if we get an error here, we should fall back to normal scan */
2730
2731 msg = NULL;
2732 if (ret) {
2733 wpa_printf(MSG_DEBUG, "nl80211: Sched scan start failed: "
2734 "ret=%d (%s)", ret, strerror(-ret));
2735 goto nla_put_failure;
2736 }
2737
2738 wpa_printf(MSG_DEBUG, "nl80211: Sched scan requested (ret=%d) - "
2739 "scan interval %d msec", ret, interval);
2740
2741nla_put_failure:
2742 nlmsg_free(ssids);
2743 nlmsg_free(msg);
2744 nlmsg_free(freqs);
2745 return ret;
2746}
2747
2748
2749/**
2750 * wpa_driver_nl80211_stop_sched_scan - Stop a scheduled scan
2751 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
2752 * Returns: 0 on success, -1 on failure or if not supported
2753 */
2754static int wpa_driver_nl80211_stop_sched_scan(void *priv)
2755{
2756 struct i802_bss *bss = priv;
2757 struct wpa_driver_nl80211_data *drv = bss->drv;
2758 int ret = 0;
2759 struct nl_msg *msg;
2760
2761 msg = nlmsg_alloc();
2762 if (!msg)
2763 return -1;
2764
2765 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
2766 NL80211_CMD_STOP_SCHED_SCAN, 0);
2767
2768 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2769
2770 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2771 msg = NULL;
2772 if (ret) {
2773 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop failed: "
2774 "ret=%d (%s)", ret, strerror(-ret));
2775 goto nla_put_failure;
2776 }
2777
2778 wpa_printf(MSG_DEBUG, "nl80211: Sched scan stop sent (ret=%d)", ret);
2779
2780nla_put_failure:
2781 nlmsg_free(msg);
2782 return ret;
2783}
2784
2785
3812464c
JM		 2786static const u8 * nl80211_get_ie(const u8 *ies, size_t ies_len, u8 ie)
2787{
2788 const u8 *end, *pos;
2789
2790 if (ies == NULL)
2791 return NULL;
2792
2793 pos = ies;
2794 end = ies + ies_len;
2795
2796 while (pos + 1 < end) {
2797 if (pos + 2 + pos[1] > end)
2798 break;
2799 if (pos[0] == ie)
2800 return pos;
2801 pos += 2 + pos[1];
2802 }
2803
2804 return NULL;
2805}
2806
2807
2808static int nl80211_scan_filtered(struct wpa_driver_nl80211_data *drv,
2809 const u8 *ie, size_t ie_len)
2810{
2811 const u8 *ssid;
2812 size_t i;
2813
2814 if (drv->filter_ssids == NULL)
2815 return 0;
2816
2817 ssid = nl80211_get_ie(ie, ie_len, WLAN_EID_SSID);
2818 if (ssid == NULL)
2819 return 1;
2820
2821 for (i = 0; i < drv->num_filter_ssids; i++) {
2822 if (ssid[1] == drv->filter_ssids[i].ssid_len &&
2823 os_memcmp(ssid + 2, drv->filter_ssids[i].ssid, ssid[1]) ==
2824 0)
2825 return 0;
2826 }
2827
2828 return 1;
2829}
2830
2831
b3db1e1c 2832static int bss_info_handler(struct nl_msg *msg, void *arg)
3f5285e8 2833{
b3db1e1c
JM		 2834 struct nlattr *tb[NL80211_ATTR_MAX + 1];
2835 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2836 struct nlattr *bss[NL80211_BSS_MAX + 1];
2837 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
2838 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC },
2839 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 },
2840 [NL80211_BSS_TSF] = { .type = NLA_U64 },
2841 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 },
2842 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 },
2843 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC },
2844 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 },
2845 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 },
e6b8efeb 2846 [NL80211_BSS_STATUS] = { .type = NLA_U32 },
b3ad11bb 2847 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 },
8c090654 2848 [NL80211_BSS_BEACON_IES] = { .type = NLA_UNSPEC },
b3db1e1c 2849 };
3812464c
JM		 2850 struct nl80211_bss_info_arg *_arg = arg;
2851 struct wpa_scan_results *res = _arg->res;
3f5285e8
JM		 2852 struct wpa_scan_res **tmp;
2853 struct wpa_scan_res *r;
8c090654
JM		 2854 const u8 *ie, *beacon_ie;
2855 size_t ie_len, beacon_ie_len;
2856 u8 *pos;
46957a9b 2857 size_t i;
3f5285e8 2858
b3db1e1c
JM		 2859 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2860 genlmsg_attrlen(gnlh, 0), NULL);
2861 if (!tb[NL80211_ATTR_BSS])
2862 return NL_SKIP;
2863 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS],
2864 bss_policy))
2865 return NL_SKIP;
f5a8d422
JM		 2866 if (bss[NL80211_BSS_STATUS]) {
2867 enum nl80211_bss_status status;
2868 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
2869 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
2870 bss[NL80211_BSS_FREQUENCY]) {
2871 _arg->assoc_freq =
2872 nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
2873 wpa_printf(MSG_DEBUG, "nl80211: Associated on %u MHz",
2874 _arg->assoc_freq);
2875 }
20f5a4c2
JM		 2876 if (status == NL80211_BSS_STATUS_ASSOCIATED &&
2877 bss[NL80211_BSS_BSSID]) {
2878 os_memcpy(_arg->assoc_bssid,
2879 nla_data(bss[NL80211_BSS_BSSID]), ETH_ALEN);
2880 wpa_printf(MSG_DEBUG, "nl80211: Associated with "
2881 MACSTR, MAC2STR(_arg->assoc_bssid));
2882 }
f5a8d422
JM		 2883 }
2884 if (!res)
2885 return NL_SKIP;
b3db1e1c
JM		 2886 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) {
2887 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
2888 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
2889 } else {
2890 ie = NULL;
2891 ie_len = 0;
2892 }
8c090654
JM		 2893 if (bss[NL80211_BSS_BEACON_IES]) {
2894 beacon_ie = nla_data(bss[NL80211_BSS_BEACON_IES]);
2895 beacon_ie_len = nla_len(bss[NL80211_BSS_BEACON_IES]);
2896 } else {
2897 beacon_ie = NULL;
2898 beacon_ie_len = 0;
2899 }
3f5285e8 2900
3812464c
JM		 2901 if (nl80211_scan_filtered(_arg->drv, ie ? ie : beacon_ie,
2902 ie ? ie_len : beacon_ie_len))
2903 return NL_SKIP;
2904
8c090654 2905 r = os_zalloc(sizeof(*r) + ie_len + beacon_ie_len);
3f5285e8 2906 if (r == NULL)
b3db1e1c
JM		 2907 return NL_SKIP;
2908 if (bss[NL80211_BSS_BSSID])
2909 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]),
2910 ETH_ALEN);
2911 if (bss[NL80211_BSS_FREQUENCY])
2912 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
2913 if (bss[NL80211_BSS_BEACON_INTERVAL])
2914 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]);
2915 if (bss[NL80211_BSS_CAPABILITY])
2916 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]);
7c2849d2
JM		 2917 r->flags |= WPA_SCAN_NOISE_INVALID;
2918 if (bss[NL80211_BSS_SIGNAL_MBM]) {
b3db1e1c 2919 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]);
7c2849d2
JM		 2920 r->level /= 100; /* mBm to dBm */
2921 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID;
2922 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) {
2923 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]);
2924 r->flags |= WPA_SCAN_LEVEL_INVALID;
2925 } else
2926 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID;
b3db1e1c
JM		 2927 if (bss[NL80211_BSS_TSF])
2928 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]);
b3ad11bb
JM		 2929 if (bss[NL80211_BSS_SEEN_MS_AGO])
2930 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]);
b3db1e1c 2931 r->ie_len = ie_len;
8c090654
JM		 2932 pos = (u8 *) (r + 1);
2933 if (ie) {
2934 os_memcpy(pos, ie, ie_len);
2935 pos += ie_len;
2936 }
2937 r->beacon_ie_len = beacon_ie_len;
2938 if (beacon_ie)
2939 os_memcpy(pos, beacon_ie, beacon_ie_len);
3f5285e8 2940
e6b8efeb
JM		 2941 if (bss[NL80211_BSS_STATUS]) {
2942 enum nl80211_bss_status status;
2943 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
2944 switch (status) {
2945 case NL80211_BSS_STATUS_AUTHENTICATED:
2946 r->flags |= WPA_SCAN_AUTHENTICATED;
2947 break;
2948 case NL80211_BSS_STATUS_ASSOCIATED:
2949 r->flags |= WPA_SCAN_ASSOCIATED;
2950 break;
2951 default:
2952 break;
2953 }
2954 }
2955
46957a9b
JM		 2956 /*
2957 * cfg80211 maintains separate BSS table entries for APs if the same
2958 * BSSID,SSID pair is seen on multiple channels. wpa_supplicant does
2959 * not use frequency as a separate key in the BSS table, so filter out
2960 * duplicated entries. Prefer associated BSS entry in such a case in
2961 * order to get the correct frequency into the BSS table.
2962 */
2963 for (i = 0; i < res->num; i++) {
2964 const u8 *s1, *s2;
2965 if (os_memcmp(res->res[i]->bssid, r->bssid, ETH_ALEN) != 0)
2966 continue;
2967
2968 s1 = nl80211_get_ie((u8 *) (res->res[i] + 1),
2969 res->res[i]->ie_len, WLAN_EID_SSID);
2970 s2 = nl80211_get_ie((u8 *) (r + 1), r->ie_len, WLAN_EID_SSID);
2971 if (s1 == NULL || s2 == NULL || s1[1] != s2[1] ||
2972 os_memcmp(s1, s2, 2 + s1[1]) != 0)
2973 continue;
2974
2975 /* Same BSSID,SSID was already included in scan results */
2976 wpa_printf(MSG_DEBUG, "nl80211: Remove duplicated scan result "
2977 "for " MACSTR, MAC2STR(r->bssid));
2978
2979 if ((r->flags & WPA_SCAN_ASSOCIATED) &&
2980 !(res->res[i]->flags & WPA_SCAN_ASSOCIATED)) {
2981 os_free(res->res[i]);
2982 res->res[i] = r;
2983 } else
2984 os_free(r);
2985 return NL_SKIP;
2986 }
2987
3f5285e8
JM		 2988 tmp = os_realloc(res->res,
2989 (res->num + 1) * sizeof(struct wpa_scan_res *));
2990 if (tmp == NULL) {
2991 os_free(r);
b3db1e1c 2992 return NL_SKIP;
3f5285e8
JM		 2993 }
2994 tmp[res->num++] = r;
2995 res->res = tmp;
b3db1e1c
JM		 2996
2997 return NL_SKIP;
3f5285e8 2998}
b3db1e1c 2999
3f5285e8 3000
d72aad94
JM		 3001static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv,
3002 const u8 *addr)
3003{
3004 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
3005 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state "
582507be 3006 "mismatch (" MACSTR ")", MAC2STR(addr));
d72aad94
JM		 3007 wpa_driver_nl80211_mlme(drv, addr,
3008 NL80211_CMD_DEAUTHENTICATE,
77339912 3009 WLAN_REASON_PREV_AUTH_NOT_VALID, 1);
d72aad94
JM		 3010 }
3011}
3012
3013
e6b8efeb
JM		 3014static void wpa_driver_nl80211_check_bss_status(
3015 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res)
3016{
3017 size_t i;
3018
3019 for (i = 0; i < res->num; i++) {
3020 struct wpa_scan_res *r = res->res[i];
3021 if (r->flags & WPA_SCAN_AUTHENTICATED) {
3022 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
3023 "indicates BSS status with " MACSTR
3024 " as authenticated",
3025 MAC2STR(r->bssid));
b1f625e0 3026 if (is_sta_interface(drv->nlmode) &&
e6b8efeb
JM		 3027 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 &&
3028 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) !=
3029 0) {
3030 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID"
3031 " in local state (auth=" MACSTR
3032 " assoc=" MACSTR ")",
3033 MAC2STR(drv->auth_bssid),
3034 MAC2STR(drv->bssid));
582507be 3035 clear_state_mismatch(drv, r->bssid);
e6b8efeb
JM		 3036 }
3037 }
3038
3039 if (r->flags & WPA_SCAN_ASSOCIATED) {
3040 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
3041 "indicate BSS status with " MACSTR
3042 " as associated",
3043 MAC2STR(r->bssid));
b1f625e0 3044 if (is_sta_interface(drv->nlmode) &&
e6b8efeb
JM		 3045 !drv->associated) {
3046 wpa_printf(MSG_DEBUG, "nl80211: Local state "
3047 "(not associated) does not match "
3048 "with BSS state");
d72aad94 3049 clear_state_mismatch(drv, r->bssid);
b1f625e0 3050 } else if (is_sta_interface(drv->nlmode) &&
e6b8efeb
JM		 3051 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) !=
3052 0) {
3053 wpa_printf(MSG_DEBUG, "nl80211: Local state "
3054 "(associated with " MACSTR ") does "
3055 "not match with BSS state",
d72aad94
JM		 3056 MAC2STR(drv->bssid));
3057 clear_state_mismatch(drv, r->bssid);
3058 clear_state_mismatch(drv, drv->bssid);
e6b8efeb
JM		 3059 }
3060 }
3061 }
3062}
3063
3064
d1f9c410
JM		 3065static void wpa_scan_results_free(struct wpa_scan_results *res)
3066{
3067 size_t i;
3068
3069 if (res == NULL)
3070 return;
3071
3072 for (i = 0; i < res->num; i++)
3073 os_free(res->res[i]);
3074 os_free(res->res);
3075 os_free(res);
3076}
3077
3078
7e5ba1b9 3079static struct wpa_scan_results *
8856462d 3080nl80211_get_scan_results(struct wpa_driver_nl80211_data *drv)
3f5285e8 3081{
b3db1e1c 3082 struct nl_msg *msg;
3f5285e8 3083 struct wpa_scan_results *res;
b3db1e1c 3084 int ret;
3812464c 3085 struct nl80211_bss_info_arg arg;
3f5285e8
JM		 3086
3087 res = os_zalloc(sizeof(*res));
b3db1e1c 3088 if (res == NULL)
8e2c104f 3089 return NULL;
b3db1e1c
JM		 3090 msg = nlmsg_alloc();
3091 if (!msg)
3092 goto nla_put_failure;
3f5285e8 3093
b3db1e1c
JM		 3094 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, NLM_F_DUMP,
3095 NL80211_CMD_GET_SCAN, 0);
3096 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3f5285e8 3097
3812464c
JM		 3098 arg.drv = drv;
3099 arg.res = res;
3100 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
b3db1e1c
JM		 3101 msg = NULL;
3102 if (ret == 0) {
3103 wpa_printf(MSG_DEBUG, "Received scan results (%lu BSSes)",
3104 (unsigned long) res->num);
3105 return res;
3f5285e8 3106 }
b3db1e1c
JM		 3107 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
3108 "(%s)", ret, strerror(-ret));
3109nla_put_failure:
3110 nlmsg_free(msg);
3111 wpa_scan_results_free(res);
3112 return NULL;
3f5285e8
JM		 3113}
3114
3115
8856462d
JM		 3116/**
3117 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results
3118 * @priv: Pointer to private wext data from wpa_driver_nl80211_init()
3119 * Returns: Scan results on success, -1 on failure
3120 */
3121static struct wpa_scan_results *
3122wpa_driver_nl80211_get_scan_results(void *priv)
3123{
a2e40bb6
FF		 3124 struct i802_bss *bss = priv;
3125 struct wpa_driver_nl80211_data *drv = bss->drv;
8856462d
JM		 3126 struct wpa_scan_results *res;
3127
3128 res = nl80211_get_scan_results(drv);
3129 if (res)
3130 wpa_driver_nl80211_check_bss_status(drv, res);
3131 return res;
3132}
3133
3134
3135static void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv)
3136{
3137 struct wpa_scan_results *res;
3138 size_t i;
3139
3140 res = nl80211_get_scan_results(drv);
3141 if (res == NULL) {
3142 wpa_printf(MSG_DEBUG, "nl80211: Failed to get scan results");
3143 return;
3144 }
3145
3146 wpa_printf(MSG_DEBUG, "nl80211: Scan result dump");
3147 for (i = 0; i < res->num; i++) {
3148 struct wpa_scan_res *r = res->res[i];
3149 wpa_printf(MSG_DEBUG, "nl80211: %d/%d " MACSTR "%s%s",
3150 (int) i, (int) res->num, MAC2STR(r->bssid),
3151 r->flags & WPA_SCAN_AUTHENTICATED ? " [auth]" : "",
3152 r->flags & WPA_SCAN_ASSOCIATED ? " [assoc]" : "");
3153 }
3154
3155 wpa_scan_results_free(res);
3156}
3157
3158
642187d6 3159static int wpa_driver_nl80211_set_key(const char *ifname, void *priv,
71934751
JM		 3160 enum wpa_alg alg, const u8 *addr,
3161 int key_idx, int set_tx,
642187d6
JM		 3162 const u8 *seq, size_t seq_len,
3163 const u8 *key, size_t key_len)
3f5285e8 3164{
a2e40bb6
FF		 3165 struct i802_bss *bss = priv;
3166 struct wpa_driver_nl80211_data *drv = bss->drv;
642187d6 3167 int ifindex = if_nametoindex(ifname);
3f5285e8 3168 struct nl_msg *msg;
1ad1cdc2 3169 int ret;
3f5285e8 3170
1ad1cdc2
JM		 3171 wpa_printf(MSG_DEBUG, "%s: ifindex=%d alg=%d addr=%p key_idx=%d "
3172 "set_tx=%d seq_len=%lu key_len=%lu",
3173 __func__, ifindex, alg, addr, key_idx, set_tx,
3f5285e8
JM		 3174 (unsigned long) seq_len, (unsigned long) key_len);
3175
3176 msg = nlmsg_alloc();
1ad1cdc2
JM		 3177 if (!msg)
3178 return -ENOMEM;
3f5285e8
JM		 3179
3180 if (alg == WPA_ALG_NONE) {
1ad1cdc2
JM		 3181 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3182 0, NL80211_CMD_DEL_KEY, 0);
3f5285e8 3183 } else {
1ad1cdc2
JM		 3184 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3185 0, NL80211_CMD_NEW_KEY, 0);
3f5285e8 3186 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key);
d723bab4
JM		 3187 switch (alg) {
3188 case WPA_ALG_WEP:
3189 if (key_len == 5)
3190 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
3191 WLAN_CIPHER_SUITE_WEP40);
3192 else
3193 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
3194 WLAN_CIPHER_SUITE_WEP104);
3195 break;
3196 case WPA_ALG_TKIP:
3197 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
3198 WLAN_CIPHER_SUITE_TKIP);
3199 break;
3200 case WPA_ALG_CCMP:
3201 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
3202 WLAN_CIPHER_SUITE_CCMP);
3203 break;
3204 case WPA_ALG_IGTK:
3205 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
3206 WLAN_CIPHER_SUITE_AES_CMAC);
3207 break;
3208 default:
3209 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
3210 "algorithm %d", __func__, alg);
3f5285e8
JM		 3211 nlmsg_free(msg);
3212 return -1;
3213 }
3214 }
3215
849ef835 3216 if (seq && seq_len)
1ad1cdc2
JM		 3217 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq);
3218
0382097e 3219 if (addr && !is_broadcast_ether_addr(addr)) {
3f5285e8
JM		 3220 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr));
3221 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
89c38e32
JM		 3222
3223 if (alg != WPA_ALG_WEP && key_idx && !set_tx) {
3224 wpa_printf(MSG_DEBUG, " RSN IBSS RX GTK");
3225 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE,
3226 NL80211_KEYTYPE_GROUP);
3227 }
60ea8187
JM		 3228 } else if (addr && is_broadcast_ether_addr(addr)) {
3229 struct nl_msg *types;
3230 int err;
3231 wpa_printf(MSG_DEBUG, " broadcast key");
3232 types = nlmsg_alloc();
3233 if (!types)
3234 goto nla_put_failure;
3235 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
3236 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
3237 types);
3238 nlmsg_free(types);
3239 if (err)
3240 goto nla_put_failure;
3f5285e8
JM		 3241 }
3242 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1ad1cdc2 3243 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
3f5285e8 3244
1ad1cdc2 3245 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
15664ad0 3246 if ((ret == -ENOENT || ret == -ENOLINK) && alg == WPA_ALG_NONE)
1ad1cdc2
JM		 3247 ret = 0;
3248 if (ret)
3249 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)",
3250 ret, strerror(-ret));
3f5285e8 3251
1ad1cdc2
JM		 3252 /*
3253 * If we failed or don't need to set the default TX key (below),
3254 * we're done here.
3255 */
3256 if (ret || !set_tx || alg == WPA_ALG_NONE)
3257 return ret;
b1f625e0 3258 if (is_ap_interface(drv->nlmode) && addr &&
0382097e 3259 !is_broadcast_ether_addr(addr))
de12717a 3260 return ret;
3f5285e8 3261
1ad1cdc2
JM		 3262 msg = nlmsg_alloc();
3263 if (!msg)
3264 return -ENOMEM;
3f5285e8 3265
1ad1cdc2
JM		 3266 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3267 0, NL80211_CMD_SET_KEY, 0);
3268 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
3269 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
3270 if (alg == WPA_ALG_IGTK)
3271 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT);
3272 else
3273 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
60ea8187
JM		 3274 if (addr && is_broadcast_ether_addr(addr)) {
3275 struct nl_msg *types;
3276 int err;
3277 types = nlmsg_alloc();
3278 if (!types)
3279 goto nla_put_failure;
3280 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_MULTICAST);
3281 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
3282 types);
3283 nlmsg_free(types);
3284 if (err)
3285 goto nla_put_failure;
3286 } else if (addr) {
3287 struct nl_msg *types;
3288 int err;
3289 types = nlmsg_alloc();
3290 if (!types)
3291 goto nla_put_failure;
3292 NLA_PUT_FLAG(types, NL80211_KEY_DEFAULT_TYPE_UNICAST);
3293 err = nla_put_nested(msg, NL80211_ATTR_KEY_DEFAULT_TYPES,
3294 types);
3295 nlmsg_free(types);
3296 if (err)
3297 goto nla_put_failure;
3298 }
3f5285e8 3299
1ad1cdc2
JM		 3300 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3301 if (ret == -ENOENT)
3302 ret = 0;
3303 if (ret)
3304 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; "
3305 "err=%d %s)", ret, strerror(-ret));
3306 return ret;
3f5285e8
JM		 3307
3308nla_put_failure:
6241fcb1 3309 return -ENOBUFS;
3f5285e8
JM		 3310}
3311
3312
71934751 3313static int nl_add_key(struct nl_msg *msg, enum wpa_alg alg,
0194fedb
JB		 3314 int key_idx, int defkey,
3315 const u8 *seq, size_t seq_len,
3316 const u8 *key, size_t key_len)
3317{
3318 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY);
3319 if (!key_attr)
3320 return -1;
3321
3322 if (defkey && alg == WPA_ALG_IGTK)
3323 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT);
3324 else if (defkey)
3325 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
3326
3327 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx);
3328
d723bab4
JM		 3329 switch (alg) {
3330 case WPA_ALG_WEP:
3331 if (key_len == 5)
2aa5f847
JM		 3332 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
3333 WLAN_CIPHER_SUITE_WEP40);
d723bab4 3334 else
2aa5f847
JM		 3335 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
3336 WLAN_CIPHER_SUITE_WEP104);
d723bab4
JM		 3337 break;
3338 case WPA_ALG_TKIP:
2aa5f847 3339 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP);
d723bab4
JM		 3340 break;
3341 case WPA_ALG_CCMP:
2aa5f847 3342 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP);
d723bab4
JM		 3343 break;
3344 case WPA_ALG_IGTK:
2aa5f847
JM		 3345 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
3346 WLAN_CIPHER_SUITE_AES_CMAC);
d723bab4
JM		 3347 break;
3348 default:
3349 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
3350 "algorithm %d", __func__, alg);
0194fedb 3351 return -1;
d723bab4 3352 }
0194fedb
JB		 3353
3354 if (seq && seq_len)
3355 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq);
3356
3357 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key);
3358
3359 nla_nest_end(msg, key_attr);
3360
3361 return 0;
3362 nla_put_failure:
3363 return -1;
3364}
3365
c811d5bc 3366
cfaab580
ZY		 3367static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params,
3368 struct nl_msg *msg)
3369{
3370 int i, privacy = 0;
3371 struct nlattr *nl_keys, *nl_key;
3372
3373 for (i = 0; i < 4; i++) {
3374 if (!params->wep_key[i])
3375 continue;
3376 privacy = 1;
3377 break;
3378 }
ce04af5a
JM		 3379 if (params->wps == WPS_MODE_PRIVACY)
3380 privacy = 1;
3381 if (params->pairwise_suite &&
3382 params->pairwise_suite != WPA_CIPHER_NONE)
3383 privacy = 1;
3384
cfaab580
ZY		 3385 if (!privacy)
3386 return 0;
3387
3388 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
3389
3390 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS);
3391 if (!nl_keys)
3392 goto nla_put_failure;
3393
3394 for (i = 0; i < 4; i++) {
3395 if (!params->wep_key[i])
3396 continue;
3397
3398 nl_key = nla_nest_start(msg, i);
3399 if (!nl_key)
3400 goto nla_put_failure;
3401
3402 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i],
3403 params->wep_key[i]);
3404 if (params->wep_key_len[i] == 5)
3405 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
3406 WLAN_CIPHER_SUITE_WEP40);
3407 else
3408 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
3409 WLAN_CIPHER_SUITE_WEP104);
3410
3411 NLA_PUT_U8(msg, NL80211_KEY_IDX, i);
3412
3413 if (i == params->wep_tx_keyidx)
3414 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
3415
3416 nla_nest_end(msg, nl_key);
3417 }
3418 nla_nest_end(msg, nl_keys);
3419
3420 return 0;
3421
3422nla_put_failure:
3423 return -ENOBUFS;
3424}
3425
3426
c2a04078 3427static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
77339912
JM		 3428 const u8 *addr, int cmd, u16 reason_code,
3429 int local_state_change)
c2a04078
JM		 3430{
3431 int ret = -1;
3432 struct nl_msg *msg;
3433
3434 msg = nlmsg_alloc();
3435 if (!msg)
3436 return -1;
3437
3438 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0, cmd, 0);
3439
3440 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3441 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code);
3442 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
77339912
JM		 3443 if (local_state_change)
3444 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
c2a04078
JM		 3445
3446 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3447 msg = NULL;
3448 if (ret) {
3449 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
3450 "(%s)", ret, strerror(-ret));
3451 goto nla_put_failure;
3452 }
3453 ret = 0;
3454
3455nla_put_failure:
3456 nlmsg_free(msg);
3457 return ret;
3458}
3f5285e8
JM		 3459
3460
cfaab580
ZY		 3461static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv,
3462 const u8 *addr, int reason_code)
3463{
2e75a2b3
JM		 3464 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)",
3465 __func__, MAC2STR(addr), reason_code);
cfaab580
ZY		 3466 drv->associated = 0;
3467 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISCONNECT,
77339912 3468 reason_code, 0);
cfaab580
ZY		 3469}
3470
3471
3f5285e8 3472static int wpa_driver_nl80211_deauthenticate(void *priv, const u8 *addr,
c2a04078 3473 int reason_code)
3f5285e8 3474{
a2e40bb6
FF		 3475 struct i802_bss *bss = priv;
3476 struct wpa_driver_nl80211_data *drv = bss->drv;
cfaab580
ZY		 3477 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
3478 return wpa_driver_nl80211_disconnect(drv, addr, reason_code);
2e75a2b3
JM		 3479 wpa_printf(MSG_DEBUG, "%s(addr=" MACSTR " reason_code=%d)",
3480 __func__, MAC2STR(addr), reason_code);
13405f35 3481 drv->associated = 0;
21bdbe38
JM		 3482 if (drv->nlmode == NL80211_IFTYPE_ADHOC)
3483 return nl80211_leave_ibss(drv);
c2a04078 3484 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE,
77339912 3485 reason_code, 0);
3f5285e8
JM		 3486}
3487
3488
3489static int wpa_driver_nl80211_disassociate(void *priv, const u8 *addr,
c2a04078 3490 int reason_code)
3f5285e8 3491{
a2e40bb6
FF		 3492 struct i802_bss *bss = priv;
3493 struct wpa_driver_nl80211_data *drv = bss->drv;
cfaab580
ZY		 3494 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
3495 return wpa_driver_nl80211_disconnect(drv, addr, reason_code);
c2a04078 3496 wpa_printf(MSG_DEBUG, "%s", __func__);
13405f35 3497 drv->associated = 0;
c2a04078 3498 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISASSOCIATE,
77339912 3499 reason_code, 0);
3f5285e8
JM		 3500}
3501
3502
c2a04078
JM		 3503static int wpa_driver_nl80211_authenticate(
3504 void *priv, struct wpa_driver_auth_params *params)
3505{
a2e40bb6
FF		 3506 struct i802_bss *bss = priv;
3507 struct wpa_driver_nl80211_data *drv = bss->drv;
a0b2f99b 3508 int ret = -1, i;
c2a04078
JM		 3509 struct nl_msg *msg;
3510 enum nl80211_auth_type type;
2f4f73b1 3511 enum nl80211_iftype nlmode;
6d6f4bb8 3512 int count = 0;
c2a04078
JM		 3513
3514 drv->associated = 0;
e6b8efeb 3515 os_memset(drv->auth_bssid, 0, ETH_ALEN);
af473088 3516 /* FIX: IBSS mode */
2f4f73b1
EP		 3517 nlmode = params->p2p ?
3518 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
3519 if (drv->nlmode != nlmode &&
3520 wpa_driver_nl80211_set_mode(priv, nlmode) < 0)
4a867032
JM		 3521 return -1;
3522
6d6f4bb8 3523retry:
c2a04078
JM		 3524 msg = nlmsg_alloc();
3525 if (!msg)
3526 return -1;
3527
3528 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)",
3529 drv->ifindex);
a0b2f99b 3530
0194fedb
JB		 3531 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
3532 NL80211_CMD_AUTHENTICATE, 0);
3533
a0b2f99b
JM		 3534 for (i = 0; i < 4; i++) {
3535 if (!params->wep_key[i])
3536 continue;
2ea2fcc7
HS		 3537 wpa_driver_nl80211_set_key(bss->ifname, priv, WPA_ALG_WEP,
3538 NULL, i,
a0b2f99b
JM		 3539 i == params->wep_tx_keyidx, NULL, 0,
3540 params->wep_key[i],
3541 params->wep_key_len[i]);
0194fedb
JB		 3542 if (params->wep_tx_keyidx != i)
3543 continue;
3544 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0,
3545 params->wep_key[i], params->wep_key_len[i])) {
3546 nlmsg_free(msg);
3547 return -1;
3548 }
a0b2f99b
JM		 3549 }
3550
c2a04078
JM		 3551 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3552 if (params->bssid) {
3553 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
3554 MAC2STR(params->bssid));
3555 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
3556 }
3557 if (params->freq) {
3558 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
3559 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
3560 }
3561 if (params->ssid) {
3562 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
3563 params->ssid, params->ssid_len);
3564 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
3565 params->ssid);
3566 }
3567 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len);
3568 if (params->ie)
3569 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie);
abd9fafa 3570 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
c2a04078 3571 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
abd9fafa 3572 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
c2a04078 3573 type = NL80211_AUTHTYPE_SHARED_KEY;
abd9fafa 3574 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
c2a04078 3575 type = NL80211_AUTHTYPE_NETWORK_EAP;
abd9fafa 3576 else if (params->auth_alg & WPA_AUTH_ALG_FT)
c2a04078
JM		 3577 type = NL80211_AUTHTYPE_FT;
3578 else
3579 goto nla_put_failure;
3580 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
3581 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
77339912
JM		 3582 if (params->local_state_change) {
3583 wpa_printf(MSG_DEBUG, " * Local state change only");
3584 NLA_PUT_FLAG(msg, NL80211_ATTR_LOCAL_STATE_CHANGE);
3585 }
c2a04078
JM		 3586
3587 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3588 msg = NULL;
3589 if (ret) {
3590 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
3591 "(%s)", ret, strerror(-ret));
6d6f4bb8 3592 count++;
77339912
JM		 3593 if (ret == -EALREADY && count == 1 && params->bssid &&
3594 !params->local_state_change) {
6d6f4bb8
JM		 3595 /*
3596 * mac80211 does not currently accept new
3597 * authentication if we are already authenticated. As a
3598 * workaround, force deauthentication and try again.
3599 */
3600 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication "
3601 "after forced deauthentication");
3602 wpa_driver_nl80211_deauthenticate(
5205c4f9 3603 bss, params->bssid,
6d6f4bb8
JM		 3604 WLAN_REASON_PREV_AUTH_NOT_VALID);
3605 nlmsg_free(msg);
3606 goto retry;
3607 }
c2a04078
JM		 3608 goto nla_put_failure;
3609 }
3610 ret = 0;
3611 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send "
3612 "successfully");
3613
3614nla_put_failure:
3615 nlmsg_free(msg);
3616 return ret;
3617}
3618
3619
282d5590
JM		 3620struct phy_info_arg {
3621 u16 *num_modes;
3622 struct hostapd_hw_modes *modes;
3623};
3624
3625static int phy_info_handler(struct nl_msg *msg, void *arg)
3626{
3627 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
3628 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3629 struct phy_info_arg *phy_info = arg;
3630
3631 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
3632
3633 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
3634 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
3635 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
3636 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
3637 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG },
3638 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG },
3639 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
3640 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
3641 };
3642
3643 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
3644 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
3645 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
3646 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = { .type = NLA_FLAG },
3647 };
3648
3649 struct nlattr *nl_band;
3650 struct nlattr *nl_freq;
3651 struct nlattr *nl_rate;
3652 int rem_band, rem_freq, rem_rate;
3653 struct hostapd_hw_modes *mode;
3654 int idx, mode_is_set;
3655
3656 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3657 genlmsg_attrlen(gnlh, 0), NULL);
3658
3659 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
3660 return NL_SKIP;
3661
3662 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) {
e62fb0a0 3663 mode = os_realloc(phy_info->modes, (*phy_info->num_modes + 1) * sizeof(*mode));
282d5590
JM		 3664 if (!mode)
3665 return NL_SKIP;
3666 phy_info->modes = mode;
3667
3668 mode_is_set = 0;
3669
3670 mode = &phy_info->modes[*(phy_info->num_modes)];
3671 memset(mode, 0, sizeof(*mode));
3672 *(phy_info->num_modes) += 1;
3673
3674 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
3675 nla_len(nl_band), NULL);
3676
3677 if (tb_band[NL80211_BAND_ATTR_HT_CAPA]) {
3678 mode->ht_capab = nla_get_u16(
3679 tb_band[NL80211_BAND_ATTR_HT_CAPA]);
3680 }
3681
be8eb8ab
JM		 3682 if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) {
3683 mode->a_mpdu_params |= nla_get_u8(
3684 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) &
3685 0x03;
3686 }
3687
3688 if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) {
3689 mode->a_mpdu_params |= nla_get_u8(
3690 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) <<
3691 2;
3692 }
3693
08eb154d
JM		 3694 if (tb_band[NL80211_BAND_ATTR_HT_MCS_SET] &&
3695 nla_len(tb_band[NL80211_BAND_ATTR_HT_MCS_SET])) {
3696 u8 *mcs;
3697 mcs = nla_data(tb_band[NL80211_BAND_ATTR_HT_MCS_SET]);
3698 os_memcpy(mode->mcs_set, mcs, 16);
3699 }
3700
282d5590
JM		 3701 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
3702 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
3703 nla_len(nl_freq), freq_policy);
3704 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
3705 continue;
3706 mode->num_channels++;
3707 }
3708
e62fb0a0 3709 mode->channels = os_zalloc(mode->num_channels * sizeof(struct hostapd_channel_data));
282d5590
JM		 3710 if (!mode->channels)
3711 return NL_SKIP;
3712
3713 idx = 0;
3714
3715 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
3716 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
3717 nla_len(nl_freq), freq_policy);
3718 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
3719 continue;
3720
3721 mode->channels[idx].freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
3722 mode->channels[idx].flag = 0;
3723
3724 if (!mode_is_set) {
3725 /* crude heuristic */
3726 if (mode->channels[idx].freq < 4000)
3727 mode->mode = HOSTAPD_MODE_IEEE80211B;
3728 else
3729 mode->mode = HOSTAPD_MODE_IEEE80211A;
3730 mode_is_set = 1;
3731 }
3732
3733 /* crude heuristic */
3734 if (mode->channels[idx].freq < 4000)
5a0ffb5f 3735 if (mode->channels[idx].freq == 2484)
282d5590
JM		 3736 mode->channels[idx].chan = 14;
3737 else
3738 mode->channels[idx].chan = (mode->channels[idx].freq - 2407) / 5;
3739 else
3740 mode->channels[idx].chan = mode->channels[idx].freq/5 - 1000;
3741
3742 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
3743 mode->channels[idx].flag |=
3744 HOSTAPD_CHAN_DISABLED;
3745 if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
3746 mode->channels[idx].flag |=
3747 HOSTAPD_CHAN_PASSIVE_SCAN;
3748 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS])
3749 mode->channels[idx].flag |=
3750 HOSTAPD_CHAN_NO_IBSS;
3751 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
3752 mode->channels[idx].flag |=
3753 HOSTAPD_CHAN_RADAR;
3754
3755 if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] &&
3756 !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
3757 mode->channels[idx].max_tx_power =
3758 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100;
3759
3760 idx++;
3761 }
3762
3763 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
3764 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
3765 nla_len(nl_rate), rate_policy);
3766 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
3767 continue;
3768 mode->num_rates++;
3769 }
3770
e62fb0a0 3771 mode->rates = os_zalloc(mode->num_rates * sizeof(int));
282d5590
JM		 3772 if (!mode->rates)
3773 return NL_SKIP;
3774
3775 idx = 0;
3776
3777 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
3778 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
3779 nla_len(nl_rate), rate_policy);
3780 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
3781 continue;
fb7842aa 3782 mode->rates[idx] = nla_get_u32(tb_rate[NL80211_BITRATE_ATTR_RATE]);
282d5590
JM		 3783
3784 /* crude heuristic */
3785 if (mode->mode == HOSTAPD_MODE_IEEE80211B &&
fb7842aa 3786 mode->rates[idx] > 200)
282d5590
JM		 3787 mode->mode = HOSTAPD_MODE_IEEE80211G;
3788
282d5590
JM		 3789 idx++;
3790 }
3791 }
3792
3793 return NL_SKIP;
3794}
3795
3796static struct hostapd_hw_modes *
3797wpa_driver_nl80211_add_11b(struct hostapd_hw_modes *modes, u16 *num_modes)
3798{
3799 u16 m;
3800 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
3801 int i, mode11g_idx = -1;
3802
3803 /* If only 802.11g mode is included, use it to construct matching
3804 * 802.11b mode data. */
3805
3806 for (m = 0; m < *num_modes; m++) {
3807 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
3808 return modes; /* 802.11b already included */
3809 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
3810 mode11g_idx = m;
3811 }
3812
3813 if (mode11g_idx < 0)
3814 return modes; /* 2.4 GHz band not supported at all */
3815
3816 nmodes = os_realloc(modes, (*num_modes + 1) * sizeof(*nmodes));
3817 if (nmodes == NULL)
3818 return modes; /* Could not add 802.11b mode */
3819
3820 mode = &nmodes[*num_modes];
3821 os_memset(mode, 0, sizeof(*mode));
3822 (*num_modes)++;
3823 modes = nmodes;
3824
3825 mode->mode = HOSTAPD_MODE_IEEE80211B;
3826
3827 mode11g = &modes[mode11g_idx];
3828 mode->num_channels = mode11g->num_channels;
3829 mode->channels = os_malloc(mode11g->num_channels *
3830 sizeof(struct hostapd_channel_data));
3831 if (mode->channels == NULL) {
3832 (*num_modes)--;
3833 return modes; /* Could not add 802.11b mode */
3834 }
3835 os_memcpy(mode->channels, mode11g->channels,
3836 mode11g->num_channels * sizeof(struct hostapd_channel_data));
3837
3838 mode->num_rates = 0;
fb7842aa 3839 mode->rates = os_malloc(4 * sizeof(int));
282d5590
JM		 3840 if (mode->rates == NULL) {
3841 os_free(mode->channels);
3842 (*num_modes)--;
3843 return modes; /* Could not add 802.11b mode */
3844 }
3845
3846 for (i = 0; i < mode11g->num_rates; i++) {
fb7842aa
JM		 3847 if (mode11g->rates[i] != 10 && mode11g->rates[i] != 20 &&
3848 mode11g->rates[i] != 55 && mode11g->rates[i] != 110)
282d5590
JM		 3849 continue;
3850 mode->rates[mode->num_rates] = mode11g->rates[i];
3851 mode->num_rates++;
3852 if (mode->num_rates == 4)
3853 break;
3854 }
3855
3856 if (mode->num_rates == 0) {
3857 os_free(mode->channels);
3858 os_free(mode->rates);
3859 (*num_modes)--;
3860 return modes; /* No 802.11b rates */
3861 }
3862
3863 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
3864 "information");
3865
3866 return modes;
3867}
3868
3869
d8e66e80
JM		 3870static void nl80211_set_ht40_mode(struct hostapd_hw_modes *mode, int start,
3871 int end)
3872{
3873 int c;
3874
3875 for (c = 0; c < mode->num_channels; c++) {
3876 struct hostapd_channel_data *chan = &mode->channels[c];
3877 if (chan->freq - 10 >= start && chan->freq + 10 <= end)
3878 chan->flag |= HOSTAPD_CHAN_HT40;
3879 }
3880}
3881
3882
3883static void nl80211_set_ht40_mode_sec(struct hostapd_hw_modes *mode, int start,
3884 int end)
3885{
3886 int c;
3887
3888 for (c = 0; c < mode->num_channels; c++) {
3889 struct hostapd_channel_data *chan = &mode->channels[c];
3890 if (!(chan->flag & HOSTAPD_CHAN_HT40))
3891 continue;
3892 if (chan->freq - 30 >= start && chan->freq - 10 <= end)
3893 chan->flag |= HOSTAPD_CHAN_HT40MINUS;
3894 if (chan->freq + 10 >= start && chan->freq + 30 <= end)
3895 chan->flag |= HOSTAPD_CHAN_HT40PLUS;
3896 }
3897}
3898
3899
3900static void nl80211_reg_rule_ht40(struct nlattr *tb[],
3901 struct phy_info_arg *results)
3902{
3903 u32 start, end, max_bw;
3904 u16 m;
3905
3906 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
3907 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
3908 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
3909 return;
3910
3911 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
3912 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
3913 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
3914
3915 wpa_printf(MSG_DEBUG, "nl80211: %u-%u @ %u MHz",
3916 start, end, max_bw);
3917 if (max_bw < 40)
3918 return;
3919
3920 for (m = 0; m < *results->num_modes; m++) {
3921 if (!(results->modes[m].ht_capab &
3922 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
3923 continue;
3924 nl80211_set_ht40_mode(&results->modes[m], start, end);
3925 }
3926}
3927
3928
3929static void nl80211_reg_rule_sec(struct nlattr *tb[],
3930 struct phy_info_arg *results)
3931{
3932 u32 start, end, max_bw;
3933 u16 m;
3934
3935 if (tb[NL80211_ATTR_FREQ_RANGE_START] == NULL ||
3936 tb[NL80211_ATTR_FREQ_RANGE_END] == NULL ||
3937 tb[NL80211_ATTR_FREQ_RANGE_MAX_BW] == NULL)
3938 return;
3939
3940 start = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]) / 1000;
3941 end = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]) / 1000;
3942 max_bw = nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) / 1000;
3943
3944 if (max_bw < 20)
3945 return;
3946
3947 for (m = 0; m < *results->num_modes; m++) {
3948 if (!(results->modes[m].ht_capab &
3949 HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
3950 continue;
3951 nl80211_set_ht40_mode_sec(&results->modes[m], start, end);
3952 }
3953}
3954
3955
3956static int nl80211_get_reg(struct nl_msg *msg, void *arg)
3957{
3958 struct phy_info_arg *results = arg;
3959 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
3960 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3961 struct nlattr *nl_rule;
3962 struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1];
3963 int rem_rule;
3964 static struct nla_policy reg_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
3965 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3966 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3967 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3968 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3969 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3970 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3971 };
3972
3973 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3974 genlmsg_attrlen(gnlh, 0), NULL);
3975 if (!tb_msg[NL80211_ATTR_REG_ALPHA2] ||
3976 !tb_msg[NL80211_ATTR_REG_RULES]) {
3977 wpa_printf(MSG_DEBUG, "nl80211: No regulatory information "
3978 "available");
3979 return NL_SKIP;
3980 }
3981
3982 wpa_printf(MSG_DEBUG, "nl80211: Regulatory information - country=%s",
3983 (char *) nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]));
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_ht40(tb_rule, results);
3990 }
3991
3992 nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule)
3993 {
3994 nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX,
3995 nla_data(nl_rule), nla_len(nl_rule), reg_policy);
3996 nl80211_reg_rule_sec(tb_rule, results);
3997 }
3998
3999 return NL_SKIP;
4000}
4001
4002
4003static int nl80211_set_ht40_flags(struct wpa_driver_nl80211_data *drv,
4004 struct phy_info_arg *results)
4005{
4006 struct nl_msg *msg;
4007
4008 msg = nlmsg_alloc();
4009 if (!msg)
4010 return -ENOMEM;
4011
4012 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4013 0, NL80211_CMD_GET_REG, 0);
4014 return send_and_recv_msgs(drv, msg, nl80211_get_reg, results);
4015}
4016
4017
282d5590
JM		 4018static struct hostapd_hw_modes *
4019wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
4020{
a2e40bb6
FF		 4021 struct i802_bss *bss = priv;
4022 struct wpa_driver_nl80211_data *drv = bss->drv;
282d5590
JM		 4023 struct nl_msg *msg;
4024 struct phy_info_arg result = {
4025 .num_modes = num_modes,
4026 .modes = NULL,
4027 };
4028
4029 *num_modes = 0;
4030 *flags = 0;
4031
4032 msg = nlmsg_alloc();
4033 if (!msg)
4034 return NULL;
4035
4036 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4037 0, NL80211_CMD_GET_WIPHY, 0);
4038
4039 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4040
d8e66e80
JM		 4041 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) {
4042 nl80211_set_ht40_flags(drv, &result);
282d5590 4043 return wpa_driver_nl80211_add_11b(result.modes, num_modes);
d8e66e80 4044 }
282d5590
JM		 4045 nla_put_failure:
4046 return NULL;
4047}
4048
4049
2c2010ac
JM		 4050static int wpa_driver_nl80211_send_frame(struct wpa_driver_nl80211_data *drv,
4051 const void *data, size_t len,
4052 int encrypt)
4053{
4054 __u8 rtap_hdr[] = {
4055 0x00, 0x00, /* radiotap version */
4056 0x0e, 0x00, /* radiotap length */
4057 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */
4058 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */
4059 0x00, /* padding */
4060 0x00, 0x00, /* RX and TX flags to indicate that */
4061 0x00, 0x00, /* this is the injected frame directly */
4062 };
4063 struct iovec iov[2] = {
4064 {
4065 .iov_base = &rtap_hdr,
4066 .iov_len = sizeof(rtap_hdr),
4067 },
4068 {
4069 .iov_base = (void *) data,
4070 .iov_len = len,
4071 }
4072 };
4073 struct msghdr msg = {
4074 .msg_name = NULL,
4075 .msg_namelen = 0,
4076 .msg_iov = iov,
4077 .msg_iovlen = 2,
4078 .msg_control = NULL,
4079 .msg_controllen = 0,
4080 .msg_flags = 0,
4081 };
ebbec8b2 4082 int res;
2c2010ac
JM		 4083
4084 if (encrypt)
4085 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP;
4086
866af8b6
JM		 4087 if (drv->monitor_sock < 0) {
4088 wpa_printf(MSG_DEBUG, "nl80211: No monitor socket available "
4089 "for %s", __func__);
4090 return -1;
4091 }
4092
ebbec8b2
JM		 4093 res = sendmsg(drv->monitor_sock, &msg, 0);
4094 if (res < 0) {
4095 wpa_printf(MSG_INFO, "nl80211: sendmsg: %s", strerror(errno));
4096 return -1;
4097 }
4098 return 0;
2c2010ac
JM		 4099}
4100
4101
4102static int wpa_driver_nl80211_send_mlme(void *priv, const u8 *data,
4103 size_t data_len)
4104{
a2e40bb6
FF		 4105 struct i802_bss *bss = priv;
4106 struct wpa_driver_nl80211_data *drv = bss->drv;
2c2010ac 4107 struct ieee80211_mgmt *mgmt;
7a47d567 4108 int encrypt = 1;
2c2010ac
JM		 4109 u16 fc;
4110
4111 mgmt = (struct ieee80211_mgmt *) data;
4112 fc = le_to_host16(mgmt->frame_control);
4113
b1f625e0 4114 if (is_sta_interface(drv->nlmode) &&
5582a5d1
JB		 4115 WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
4116 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_RESP) {
4117 /*
4118 * The use of last_mgmt_freq is a bit of a hack,
4119 * but it works due to the single-threaded nature
4120 * of wpa_supplicant.
4121 */
5dfca53f 4122 return nl80211_send_frame_cmd(drv, drv->last_mgmt_freq, 0,
5582a5d1
JB		 4123 data, data_len, NULL);
4124 }
4125
86957e62
JM		 4126 if (drv->no_monitor_iface_capab && is_ap_interface(drv->nlmode)) {
4127 return nl80211_send_frame_cmd(drv, drv->ap_oper_freq, 0,
4128 data, data_len, NULL);
4129 }
4130
2c2010ac
JM		 4131 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
4132 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) {
4133 /*
4134 * Only one of the authentication frame types is encrypted.
4135 * In order for static WEP encryption to work properly (i.e.,
4136 * to not encrypt the frame), we need to tell mac80211 about
4137 * the frames that must not be encrypted.
4138 */
4139 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
4140 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction);
7a47d567
JB		 4141 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3)
4142 encrypt = 0;
2c2010ac
JM		 4143 }
4144
7a47d567 4145 return wpa_driver_nl80211_send_frame(drv, data, data_len, encrypt);
2c2010ac
JM		 4146}
4147
4148
fd13a541
JM		 4149static int nl80211_set_ap_isolate(struct i802_bss *bss, int enabled)
4150{
4151 struct wpa_driver_nl80211_data *drv = bss->drv;
4152 struct nl_msg *msg;
4153
4154 msg = nlmsg_alloc();
4155 if (!msg)
4156 return -ENOMEM;
4157
4158 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
4159 NL80211_CMD_SET_BSS, 0);
4160
4161 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
4162 NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, enabled);
4163
4164 return send_and_recv_msgs(drv, msg, NULL, NULL);
4165 nla_put_failure:
4166 return -ENOBUFS;
4167}
4168
4169
31357268
JM		 4170static int nl80211_set_bss(struct i802_bss *bss, int cts, int preamble,
4171 int slot, int ht_opmode)
4172{
4173 struct wpa_driver_nl80211_data *drv = bss->drv;
4174 struct nl_msg *msg;
4175
4176 msg = nlmsg_alloc();
4177 if (!msg)
4178 return -ENOMEM;
4179
4180 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
4181 NL80211_CMD_SET_BSS, 0);
4182
4183 if (cts >= 0)
4184 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts);
4185 if (preamble >= 0)
4186 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble);
4187 if (slot >= 0)
4188 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot);
4189 if (ht_opmode >= 0)
4190 NLA_PUT_U16(msg, NL80211_ATTR_BSS_HT_OPMODE, ht_opmode);
4191 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
4192
4193 return send_and_recv_msgs(drv, msg, NULL, NULL);
4194 nla_put_failure:
4195 return -ENOBUFS;
4196}
4197
4198
19c3b566
JM		 4199static int wpa_driver_nl80211_set_ap(void *priv,
4200 struct wpa_driver_ap_params *params)
d2440ba0 4201{
a2e40bb6
FF		 4202 struct i802_bss *bss = priv;
4203 struct wpa_driver_nl80211_data *drv = bss->drv;
d2440ba0
JM		 4204 struct nl_msg *msg;
4205 u8 cmd = NL80211_CMD_NEW_BEACON;
4206 int ret;
b4fd6fab 4207 int beacon_set;
8b897f5a 4208 int ifindex = if_nametoindex(bss->ifname);
b11d1d64
JM		 4209 int num_suites;
4210 u32 suites[10];
4211 u32 ver;
b4fd6fab 4212
b4fd6fab 4213 beacon_set = bss->beacon_set;
d2440ba0
JM		 4214
4215 msg = nlmsg_alloc();
4216 if (!msg)
4217 return -ENOMEM;
4218
4219 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)",
b4fd6fab
JM		 4220 beacon_set);
4221 if (beacon_set)
d2440ba0
JM		 4222 cmd = NL80211_CMD_SET_BEACON;
4223
4224 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4225 0, cmd, 0);
19c3b566
JM		 4226 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, params->head_len, params->head);
4227 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, params->tail_len, params->tail);
b4fd6fab 4228 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
19c3b566
JM		 4229 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, params->beacon_int);
4230 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, params->dtim_period);
ccb941e6
JM		 4231 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
4232 params->ssid);
97a7a0b5
JM		 4233 switch (params->hide_ssid) {
4234 case NO_SSID_HIDING:
4235 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
4236 NL80211_HIDDEN_SSID_NOT_IN_USE);
4237 break;
4238 case HIDDEN_SSID_ZERO_LEN:
4239 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
4240 NL80211_HIDDEN_SSID_ZERO_LEN);
4241 break;
4242 case HIDDEN_SSID_ZERO_CONTENTS:
4243 NLA_PUT_U32(msg, NL80211_ATTR_HIDDEN_SSID,
4244 NL80211_HIDDEN_SSID_ZERO_CONTENTS);
4245 break;
4246 }
b11d1d64
JM		 4247 if (params->privacy)
4248 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
4249 if ((params->auth_algs & (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) ==
4250 (WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED)) {
4251 /* Leave out the attribute */
4252 } else if (params->auth_algs & WPA_AUTH_ALG_SHARED)
4253 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE,
4254 NL80211_AUTHTYPE_SHARED_KEY);
4255 else
4256 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE,
4257 NL80211_AUTHTYPE_OPEN_SYSTEM);
4258
4259 ver = 0;
4260 if (params->wpa_version & WPA_PROTO_WPA)
4261 ver |= NL80211_WPA_VERSION_1;
4262 if (params->wpa_version & WPA_PROTO_RSN)
4263 ver |= NL80211_WPA_VERSION_2;
4264 if (ver)
4265 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
4266
4267 num_suites = 0;
4268 if (params->key_mgmt_suites & WPA_KEY_MGMT_IEEE8021X)
4269 suites[num_suites++] = WLAN_AKM_SUITE_8021X;
4270 if (params->key_mgmt_suites & WPA_KEY_MGMT_PSK)
4271 suites[num_suites++] = WLAN_AKM_SUITE_PSK;
4272 if (num_suites) {
4273 NLA_PUT(msg, NL80211_ATTR_AKM_SUITES,
4274 num_suites * sizeof(u32), suites);
4275 }
4276
4277 num_suites = 0;
4278 if (params->pairwise_ciphers & WPA_CIPHER_CCMP)
4279 suites[num_suites++] = WLAN_CIPHER_SUITE_CCMP;
4280 if (params->pairwise_ciphers & WPA_CIPHER_TKIP)
4281 suites[num_suites++] = WLAN_CIPHER_SUITE_TKIP;
4282 if (params->pairwise_ciphers & WPA_CIPHER_WEP104)
4283 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP104;
4284 if (params->pairwise_ciphers & WPA_CIPHER_WEP40)
4285 suites[num_suites++] = WLAN_CIPHER_SUITE_WEP40;
4286 if (num_suites) {
4287 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE,
4288 num_suites * sizeof(u32), suites);
4289 }
4290
4291 switch (params->group_cipher) {
4292 case WPA_CIPHER_CCMP:
4293 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
4294 WLAN_CIPHER_SUITE_CCMP);
4295 break;
4296 case WPA_CIPHER_TKIP:
4297 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
4298 WLAN_CIPHER_SUITE_TKIP);
4299 break;
4300 case WPA_CIPHER_WEP104:
4301 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
4302 WLAN_CIPHER_SUITE_WEP104);
4303 break;
4304 case WPA_CIPHER_WEP40:
4305 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP,
4306 WLAN_CIPHER_SUITE_WEP40);
4307 break;
4308 }
d2440ba0 4309
fb91db56
JM		 4310 if (params->beacon_ies) {
4311 NLA_PUT(msg, NL80211_ATTR_IE, wpabuf_len(params->beacon_ies),
4312 wpabuf_head(params->beacon_ies));
4313 }
4314 if (params->proberesp_ies) {
4315 NLA_PUT(msg, NL80211_ATTR_IE_PROBE_RESP,
4316 wpabuf_len(params->proberesp_ies),
4317 wpabuf_head(params->proberesp_ies));
4318 }
4319 if (params->assocresp_ies) {
4320 NLA_PUT(msg, NL80211_ATTR_IE_ASSOC_RESP,
4321 wpabuf_len(params->assocresp_ies),
4322 wpabuf_head(params->assocresp_ies));
4323 }
4324
d2440ba0
JM		 4325 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4326 if (ret) {
4327 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)",
4328 ret, strerror(-ret));
b4fd6fab 4329 } else {
b4fd6fab 4330 bss->beacon_set = 1;
fd13a541
JM		 4331 ret = nl80211_set_ap_isolate(bss, params->isolate);
4332 if (!params->isolate && ret) {
4333 wpa_printf(MSG_DEBUG, "nl80211: Ignore AP isolation "
4334 "configuration error since isolation is "
4335 "not used");
4336 ret = 0;
4337 }
31357268
JM		 4338
4339 nl80211_set_bss(bss, params->cts_protect, params->preamble,
4340 params->short_slot_time, params->ht_opmode);
b4fd6fab 4341 }
d2440ba0
JM		 4342 return ret;
4343 nla_put_failure:
4344 return -ENOBUFS;
4345}
4346
4347
f019981a
JM		 4348static int wpa_driver_nl80211_set_freq(struct wpa_driver_nl80211_data *drv,
4349 int freq, int ht_enabled,
4350 int sec_channel_offset)
1581b38b
JM		 4351{
4352 struct nl_msg *msg;
d2440ba0 4353 int ret;
1581b38b 4354
44dc872e
JM		 4355 wpa_printf(MSG_DEBUG, "nl80211: Set freq %d (ht_enabled=%d "
4356 "sec_channel_offset=%d)",
4357 freq, ht_enabled, sec_channel_offset);
1581b38b
JM		 4358 msg = nlmsg_alloc();
4359 if (!msg)
4360 return -1;
4361
4362 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
4363 NL80211_CMD_SET_WIPHY, 0);
4364
4365 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
f019981a
JM		 4366 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
4367 if (ht_enabled) {
4368 switch (sec_channel_offset) {
4369 case -1:
4370 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
4371 NL80211_CHAN_HT40MINUS);
4372 break;
4373 case 1:
4374 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
4375 NL80211_CHAN_HT40PLUS);
4376 break;
4377 default:
4378 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
4379 NL80211_CHAN_HT20);
4380 break;
4381 }
4382 }
1581b38b 4383
d2440ba0
JM		 4384 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4385 if (ret == 0)
1581b38b 4386 return 0;
f019981a
JM		 4387 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): "
4388 "%d (%s)", freq, ret, strerror(-ret));
1581b38b
JM		 4389nla_put_failure:
4390 return -1;
4391}
4392
0f4e8b4f 4393
95ab6063
AN		 4394static u32 sta_flags_nl80211(int flags)
4395{
4396 u32 f = 0;
4397
4398 if (flags & WPA_STA_AUTHORIZED)
4399 f |= BIT(NL80211_STA_FLAG_AUTHORIZED);
4400 if (flags & WPA_STA_WMM)
4401 f |= BIT(NL80211_STA_FLAG_WME);
4402 if (flags & WPA_STA_SHORT_PREAMBLE)
4403 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
4404 if (flags & WPA_STA_MFP)
4405 f |= BIT(NL80211_STA_FLAG_MFP);
4406
4407 return f;
4408}
4409
4410
62847751 4411static int wpa_driver_nl80211_sta_add(void *priv,
0f4e8b4f
JM		 4412 struct hostapd_sta_add_params *params)
4413{
a2e40bb6
FF		 4414 struct i802_bss *bss = priv;
4415 struct wpa_driver_nl80211_data *drv = bss->drv;
0f4e8b4f 4416 struct nl_msg *msg;
95ab6063 4417 struct nl80211_sta_flag_update upd;
0f4e8b4f
JM		 4418 int ret = -ENOBUFS;
4419
4420 msg = nlmsg_alloc();
4421 if (!msg)
4422 return -ENOMEM;
4423
4424 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4425 0, NL80211_CMD_NEW_STATION, 0);
4426
62847751 4427 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
0f4e8b4f
JM		 4428 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr);
4429 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid);
4430 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len,
4431 params->supp_rates);
4432 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL,
4433 params->listen_interval);
0f4e8b4f
JM		 4434 if (params->ht_capabilities) {
4435 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY,
fc4e2d95
JM		 4436 sizeof(*params->ht_capabilities),
4437 params->ht_capabilities);
0f4e8b4f 4438 }
0f4e8b4f 4439
95ab6063
AN		 4440 os_memset(&upd, 0, sizeof(upd));
4441 upd.mask = sta_flags_nl80211(params->flags);
4442 upd.set = upd.mask;
4443 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
4444
0f4e8b4f
JM		 4445 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4446 if (ret)
4447 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_NEW_STATION "
4448 "result: %d (%s)", ret, strerror(-ret));
4449 if (ret == -EEXIST)
4450 ret = 0;
4451 nla_put_failure:
4452 return ret;
4453}
4454
4455
4456static int wpa_driver_nl80211_sta_remove(void *priv, const u8 *addr)
4457{
a2e40bb6
FF		 4458 struct i802_bss *bss = priv;
4459 struct wpa_driver_nl80211_data *drv = bss->drv;
0f4e8b4f
JM		 4460 struct nl_msg *msg;
4461 int ret;
4462
4463 msg = nlmsg_alloc();
4464 if (!msg)
4465 return -ENOMEM;
4466
4467 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4468 0, NL80211_CMD_DEL_STATION, 0);
4469
4470 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 4471 if_nametoindex(bss->ifname));
0f4e8b4f
JM		 4472 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
4473
4474 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4475 if (ret == -ENOENT)
4476 return 0;
4477 return ret;
4478 nla_put_failure:
4479 return -ENOBUFS;
4480}
4481
1581b38b 4482
0915d02c
JM		 4483static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
4484 int ifidx)
4485{
4486 struct nl_msg *msg;
4487
c6e8e8e4
JM		 4488 wpa_printf(MSG_DEBUG, "nl80211: Remove interface ifindex=%d", ifidx);
4489
2135f224
JM		 4490#ifdef HOSTAPD
4491 /* stop listening for EAPOL on this interface */
4492 del_ifidx(drv, ifidx);
4493#endif /* HOSTAPD */
4494
0915d02c
JM		 4495 msg = nlmsg_alloc();
4496 if (!msg)
4497 goto nla_put_failure;
4498
4499 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4500 0, NL80211_CMD_DEL_INTERFACE, 0);
4501 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx);
4502
4503 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
4504 return;
4505 nla_put_failure:
e748062b 4506 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d)", ifidx);
0915d02c
JM		 4507}
4508
4509
a1922f93
JM		 4510static const char * nl80211_iftype_str(enum nl80211_iftype mode)
4511{
4512 switch (mode) {
4513 case NL80211_IFTYPE_ADHOC:
4514 return "ADHOC";
4515 case NL80211_IFTYPE_STATION:
4516 return "STATION";
4517 case NL80211_IFTYPE_AP:
4518 return "AP";
4519 case NL80211_IFTYPE_MONITOR:
4520 return "MONITOR";
4521 case NL80211_IFTYPE_P2P_CLIENT:
4522 return "P2P_CLIENT";
4523 case NL80211_IFTYPE_P2P_GO:
4524 return "P2P_GO";
4525 default:
4526 return "unknown";
4527 }
4528}
4529
4530
a35187e7
KH		 4531static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv,
4532 const char *ifname,
4533 enum nl80211_iftype iftype,
fbbfcbac 4534 const u8 *addr, int wds)
0915d02c
JM		 4535{
4536 struct nl_msg *msg, *flags = NULL;
4537 int ifidx;
4538 int ret = -ENOBUFS;
4539
a1922f93
JM		 4540 wpa_printf(MSG_DEBUG, "nl80211: Create interface iftype %d (%s)",
4541 iftype, nl80211_iftype_str(iftype));
4542
0915d02c
JM		 4543 msg = nlmsg_alloc();
4544 if (!msg)
4545 return -1;
4546
4547 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4548 0, NL80211_CMD_NEW_INTERFACE, 0);
4549 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4550 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname);
4551 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype);
4552
4553 if (iftype == NL80211_IFTYPE_MONITOR) {
4554 int err;
4555
4556 flags = nlmsg_alloc();
4557 if (!flags)
4558 goto nla_put_failure;
4559
4560 NLA_PUT_FLAG(flags, NL80211_MNTR_FLAG_COOK_FRAMES);
4561
4562 err = nla_put_nested(msg, NL80211_ATTR_MNTR_FLAGS, flags);
4563
4564 nlmsg_free(flags);
4565
4566 if (err)
4567 goto nla_put_failure;
fbbfcbac
FF		 4568 } else if (wds) {
4569 NLA_PUT_U8(msg, NL80211_ATTR_4ADDR, wds);
0915d02c
JM		 4570 }
4571
4572 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4573 if (ret) {
4574 nla_put_failure:
a35187e7
KH		 4575 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)",
4576 ifname, ret, strerror(-ret));
0915d02c
JM		 4577 return ret;
4578 }
4579
4580 ifidx = if_nametoindex(ifname);
c6e8e8e4
JM		 4581 wpa_printf(MSG_DEBUG, "nl80211: New interface %s created: ifindex=%d",
4582 ifname, ifidx);
0915d02c
JM		 4583
4584 if (ifidx <= 0)
4585 return -1;
4586
2135f224
JM		 4587#ifdef HOSTAPD
4588 /* start listening for EAPOL on this interface */
4589 add_ifidx(drv, ifidx);
7bfc47c3 4590#endif /* HOSTAPD */
2135f224 4591
7bfc47c3 4592 if (addr && iftype != NL80211_IFTYPE_MONITOR &&
2ac9688e 4593 linux_set_ifhwaddr(drv->ioctl_sock, ifname, addr)) {
41d931ee
JM		 4594 nl80211_remove_iface(drv, ifidx);
4595 return -1;
2135f224 4596 }
2135f224 4597
0915d02c
JM		 4598 return ifidx;
4599}
22a7c9d7
JM		 4600
4601
a35187e7
KH		 4602static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
4603 const char *ifname, enum nl80211_iftype iftype,
fbbfcbac 4604 const u8 *addr, int wds)
a35187e7
KH		 4605{
4606 int ret;
4607
fbbfcbac 4608 ret = nl80211_create_iface_once(drv, ifname, iftype, addr, wds);
a35187e7 4609
ffbf1eaa 4610 /* if error occurred and interface exists already */
a35187e7
KH		 4611 if (ret == -ENFILE && if_nametoindex(ifname)) {
4612 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname);
4613
4614 /* Try to remove the interface that was already there. */
4615 nl80211_remove_iface(drv, if_nametoindex(ifname));
4616
4617 /* Try to create the interface again */
fbbfcbac
FF		 4618 ret = nl80211_create_iface_once(drv, ifname, iftype, addr,
4619 wds);
a35187e7
KH		 4620 }
4621
4e5cb1a3
JM		 4622 if (ret >= 0 && drv->disable_11b_rates)
4623 nl80211_disable_11b_rates(drv, ret, 1);
4624
a35187e7
KH		 4625 return ret;
4626}
0915d02c 4627
2135f224 4628
0915d02c
JM		 4629static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok)
4630{
4631 struct ieee80211_hdr *hdr;
f8b1f695
JM		 4632 u16 fc;
4633 union wpa_event_data event;
0915d02c
JM		 4634
4635 hdr = (struct ieee80211_hdr *) buf;
4636 fc = le_to_host16(hdr->frame_control);
4637
f8b1f695
JM		 4638 os_memset(&event, 0, sizeof(event));
4639 event.tx_status.type = WLAN_FC_GET_TYPE(fc);
4640 event.tx_status.stype = WLAN_FC_GET_STYPE(fc);
4641 event.tx_status.dst = hdr->addr1;
4642 event.tx_status.data = buf;
4643 event.tx_status.data_len = len;
4644 event.tx_status.ack = ok;
4645 wpa_supplicant_event(ctx, EVENT_TX_STATUS, &event);
0915d02c
JM		 4646}
4647
4648
4b9841d3 4649static void from_unknown_sta(struct wpa_driver_nl80211_data *drv,
0d9fc3d8 4650 u8 *buf, size_t len)
0915d02c 4651{
9b90955e
JB		 4652 struct ieee80211_hdr *hdr = (void *)buf;
4653 u16 fc;
f8b1f695 4654 union wpa_event_data event;
9b90955e
JB		 4655
4656 if (len < sizeof(*hdr))
4657 return;
4658
4659 fc = le_to_host16(hdr->frame_control);
4660
f8b1f695 4661 os_memset(&event, 0, sizeof(event));
9b90955e
JB		 4662 event.rx_from_unknown.bssid = get_hdr_bssid(hdr, len);
4663 event.rx_from_unknown.addr = hdr->addr2;
4664 event.rx_from_unknown.wds = (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) ==
4665 (WLAN_FC_FROMDS | WLAN_FC_TODS);
f8b1f695 4666 wpa_supplicant_event(drv->ctx, EVENT_RX_FROM_UNKNOWN, &event);
4b9841d3 4667}
0915d02c 4668
4b9841d3
JM		 4669
4670static void handle_frame(struct wpa_driver_nl80211_data *drv,
2a8b7416 4671 u8 *buf, size_t len, int datarate, int ssi_signal)
4b9841d3
JM		 4672{
4673 struct ieee80211_hdr *hdr;
f8b1f695
JM		 4674 u16 fc;
4675 union wpa_event_data event;
0915d02c
JM		 4676
4677 hdr = (struct ieee80211_hdr *) buf;
4678 fc = le_to_host16(hdr->frame_control);
0915d02c 4679
4b9841d3 4680 switch (WLAN_FC_GET_TYPE(fc)) {
0915d02c 4681 case WLAN_FC_TYPE_MGMT:
f8b1f695
JM		 4682 os_memset(&event, 0, sizeof(event));
4683 event.rx_mgmt.frame = buf;
4684 event.rx_mgmt.frame_len = len;
2a8b7416
JM		 4685 event.rx_mgmt.datarate = datarate;
4686 event.rx_mgmt.ssi_signal = ssi_signal;
f8b1f695 4687 wpa_supplicant_event(drv->ctx, EVENT_RX_MGMT, &event);
0915d02c
JM		 4688 break;
4689 case WLAN_FC_TYPE_CTRL:
4690 /* can only get here with PS-Poll frames */
4691 wpa_printf(MSG_DEBUG, "CTRL");
0d9fc3d8 4692 from_unknown_sta(drv, buf, len);
0915d02c
JM		 4693 break;
4694 case WLAN_FC_TYPE_DATA:
0d9fc3d8 4695 from_unknown_sta(drv, buf, len);
0915d02c
JM		 4696 break;
4697 }
4698}
4699
4700
4701static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx)
4702{
4703 struct wpa_driver_nl80211_data *drv = eloop_ctx;
4704 int len;
4705 unsigned char buf[3000];
4706 struct ieee80211_radiotap_iterator iter;
4707 int ret;
2a8b7416 4708 int datarate = 0, ssi_signal = 0;
4b9841d3 4709 int injected = 0, failed = 0, rxflags = 0;
0915d02c
JM		 4710
4711 len = recv(sock, buf, sizeof(buf), 0);
4712 if (len < 0) {
4713 perror("recv");
4714 return;
4715 }
4716
4717 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) {
4718 printf("received invalid radiotap frame\n");
4719 return;
4720 }
4721
0915d02c
JM		 4722 while (1) {
4723 ret = ieee80211_radiotap_iterator_next(&iter);
4724 if (ret == -ENOENT)
4725 break;
4726 if (ret) {
4727 printf("received invalid radiotap frame (%d)\n", ret);
4728 return;
4729 }
4730 switch (iter.this_arg_index) {
4731 case IEEE80211_RADIOTAP_FLAGS:
4732 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS)
4733 len -= 4;
4734 break;
4735 case IEEE80211_RADIOTAP_RX_FLAGS:
4736 rxflags = 1;
4737 break;
4738 case IEEE80211_RADIOTAP_TX_FLAGS:
4739 injected = 1;
4740 failed = le_to_host16((*(uint16_t *) iter.this_arg)) &
4741 IEEE80211_RADIOTAP_F_TX_FAIL;
4742 break;
4743 case IEEE80211_RADIOTAP_DATA_RETRIES:
4744 break;
4745 case IEEE80211_RADIOTAP_CHANNEL:
2a8b7416 4746 /* TODO: convert from freq/flags to channel number */
0915d02c
JM		 4747 break;
4748 case IEEE80211_RADIOTAP_RATE:
2a8b7416 4749 datarate = *iter.this_arg * 5;
0915d02c
JM		 4750 break;
4751 case IEEE80211_RADIOTAP_DB_ANTSIGNAL:
2a8b7416 4752 ssi_signal = *iter.this_arg;
0915d02c
JM		 4753 break;
4754 }
4755 }
4756
4757 if (rxflags && injected)
4758 return;
4759
4760 if (!injected)
4b9841d3 4761 handle_frame(drv, buf + iter.max_length,
2a8b7416 4762 len - iter.max_length, datarate, ssi_signal);
0915d02c 4763 else
4b9841d3
JM		 4764 handle_tx_callback(drv->ctx, buf + iter.max_length,
4765 len - iter.max_length, !failed);
0915d02c
JM		 4766}
4767
4768
4769/*
4770 * we post-process the filter code later and rewrite
4771 * this to the offset to the last instruction
4772 */
4773#define PASS 0xFF
4774#define FAIL 0xFE
4775
4776static struct sock_filter msock_filter_insns[] = {
4777 /*
4778 * do a little-endian load of the radiotap length field
4779 */
4780 /* load lower byte into A */
4781 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2),
4782 /* put it into X (== index register) */
4783 BPF_STMT(BPF_MISC| BPF_TAX, 0),
4784 /* load upper byte into A */
4785 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3),
4786 /* left-shift it by 8 */
4787 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8),
4788 /* or with X */
4789 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0),
4790 /* put result into X */
4791 BPF_STMT(BPF_MISC| BPF_TAX, 0),
4792
4793 /*
4794 * Allow management frames through, this also gives us those
4795 * management frames that we sent ourselves with status
4796 */
4797 /* load the lower byte of the IEEE 802.11 frame control field */
4798 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
4799 /* mask off frame type and version */
4800 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF),
4801 /* accept frame if it's both 0, fall through otherwise */
4802 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0),
4803
4804 /*
4805 * TODO: add a bit to radiotap RX flags that indicates
4806 * that the sending station is not associated, then
4807 * add a filter here that filters on our DA and that flag
4808 * to allow us to deauth frames to that bad station.
4809 *
65ae1afd 4810 * For now allow all To DS data frames through.
0915d02c 4811 */
65ae1afd
HS		 4812 /* load the IEEE 802.11 frame control field */
4813 BPF_STMT(BPF_LD | BPF_H | BPF_IND, 0),
4814 /* mask off frame type, version and DS status */
4815 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0F03),
4816 /* accept frame if version 0, type 2 and To DS, fall through otherwise
4817 */
4818 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0801, PASS, 0),
0915d02c
JM		 4819
4820#if 0
4821 /*
fbbfcbac 4822 * drop non-data frames
0915d02c
JM		 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, 0x0c),
4828 /* drop non-data frames */
4829 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL),
fbbfcbac 4830#endif
0915d02c 4831 /* load the upper byte of the frame control field */
fbbfcbac 4832 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 1),
0915d02c
JM		 4833 /* mask off toDS/fromDS */
4834 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03),
fbbfcbac
FF		 4835 /* accept WDS frames */
4836 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, PASS, 0),
0915d02c
JM		 4837
4838 /*
4839 * add header length to index
4840 */
4841 /* load the lower byte of the frame control field */
4842 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
4843 /* mask off QoS bit */
4844 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80),
4845 /* right shift it by 6 to give 0 or 2 */
4846 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6),
4847 /* add data frame header length */
4848 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24),
4849 /* add index, was start of 802.11 header */
4850 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0),
4851 /* move to index, now start of LL header */
4852 BPF_STMT(BPF_MISC | BPF_TAX, 0),
4853
4854 /*
4855 * Accept empty data frames, we use those for
4856 * polling activity.
4857 */
4858 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0),
4859 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0),
4860
4861 /*
4862 * Accept EAPOL frames
4863 */
4864 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0),
4865 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL),
4866 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4),
4867 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL),
4868
4869 /* keep these last two statements or change the code below */
4870 /* return 0 == "DROP" */
4871 BPF_STMT(BPF_RET | BPF_K, 0),
4872 /* return ~0 == "keep all" */
4873 BPF_STMT(BPF_RET | BPF_K, ~0),
4874};
4875
4876static struct sock_fprog msock_filter = {
4877 .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]),
4878 .filter = msock_filter_insns,
4879};
4880
4881
4882static int add_monitor_filter(int s)
4883{
4884 int idx;
4885
4886 /* rewrite all PASS/FAIL jump offsets */
4887 for (idx = 0; idx < msock_filter.len; idx++) {
4888 struct sock_filter *insn = &msock_filter_insns[idx];
4889
4890 if (BPF_CLASS(insn->code) == BPF_JMP) {
4891 if (insn->code == (BPF_JMP|BPF_JA)) {
4892 if (insn->k == PASS)
4893 insn->k = msock_filter.len - idx - 2;
4894 else if (insn->k == FAIL)
4895 insn->k = msock_filter.len - idx - 3;
4896 }
4897
4898 if (insn->jt == PASS)
4899 insn->jt = msock_filter.len - idx - 2;
4900 else if (insn->jt == FAIL)
4901 insn->jt = msock_filter.len - idx - 3;
4902
4903 if (insn->jf == PASS)
4904 insn->jf = msock_filter.len - idx - 2;
4905 else if (insn->jf == FAIL)
4906 insn->jf = msock_filter.len - idx - 3;
4907 }
4908 }
4909
4910 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER,
4911 &msock_filter, sizeof(msock_filter))) {
4912 perror("SO_ATTACH_FILTER");
4913 return -1;
4914 }
4915
4916 return 0;
4917}
4918
4919
460456f8
JM		 4920static void nl80211_remove_monitor_interface(
4921 struct wpa_driver_nl80211_data *drv)
4922{
4923 if (drv->monitor_ifidx >= 0) {
4924 nl80211_remove_iface(drv, drv->monitor_ifidx);
4925 drv->monitor_ifidx = -1;
4926 }
504e905c
JM		 4927 if (drv->monitor_sock >= 0) {
4928 eloop_unregister_read_sock(drv->monitor_sock);
4929 close(drv->monitor_sock);
4930 drv->monitor_sock = -1;
4931 }
460456f8
JM		 4932}
4933
4934
0915d02c
JM		 4935static int
4936nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv)
4937{
4938 char buf[IFNAMSIZ];
4939 struct sockaddr_ll ll;
4940 int optval;
4941 socklen_t optlen;
0915d02c 4942
6758b167
JJ		 4943 if (os_strncmp(drv->first_bss.ifname, "p2p-", 4) == 0) {
4944 /*
4945 * P2P interface name is of the format p2p-%s-%d. For monitor
4946 * interface name corresponding to P2P GO, replace "p2p-" with
4947 * "mon-" to retain the same interface name length and to
4948 * indicate that it is a monitor interface.
4949 */
4950 snprintf(buf, IFNAMSIZ, "mon-%s", drv->first_bss.ifname + 4);
4951 } else {
4952 /* Non-P2P interface with AP functionality. */
4953 snprintf(buf, IFNAMSIZ, "mon.%s", drv->first_bss.ifname);
4954 }
4955
0915d02c
JM		 4956 buf[IFNAMSIZ - 1] = '\0';
4957
4958 drv->monitor_ifidx =
fbbfcbac
FF		 4959 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL,
4960 0);
0915d02c 4961
866af8b6
JM		 4962 if (drv->monitor_ifidx == -EOPNOTSUPP) {
4963 wpa_printf(MSG_DEBUG, "nl80211: Driver does not support "
4964 "monitor interface type - try to run without it");
4965 drv->no_monitor_iface_capab = 1;
4966 }
4967
0915d02c
JM		 4968 if (drv->monitor_ifidx < 0)
4969 return -1;
4970
34f2f814 4971 if (linux_set_iface_flags(drv->ioctl_sock, buf, 1))
0915d02c 4972 goto error;
0915d02c
JM		 4973
4974 memset(&ll, 0, sizeof(ll));
4975 ll.sll_family = AF_PACKET;
4976 ll.sll_ifindex = drv->monitor_ifidx;
4977 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
4978 if (drv->monitor_sock < 0) {
4979 perror("socket[PF_PACKET,SOCK_RAW]");
4980 goto error;
4981 }
4982
4983 if (add_monitor_filter(drv->monitor_sock)) {
4984 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor "
4985 "interface; do filtering in user space");
4986 /* This works, but will cost in performance. */
4987 }
4988
2135f224 4989 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) {
0915d02c
JM		 4990 perror("monitor socket bind");
4991 goto error;
4992 }
4993
4994 optlen = sizeof(optval);
4995 optval = 20;
4996 if (setsockopt
4997 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) {
4998 perror("Failed to set socket priority");
4999 goto error;
5000 }
5001
5002 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read,
5003 drv, NULL)) {
5004 printf("Could not register monitor read socket\n");
5005 goto error;
5006 }
5007
5008 return 0;
5009 error:
460456f8 5010 nl80211_remove_monitor_interface(drv);
0915d02c
JM		 5011 return -1;
5012}
5013
db149ac9 5014
5fb1a232 5015#ifdef CONFIG_AP
f10bfc9a
JM		 5016static int nl80211_send_eapol_data(struct i802_bss *bss,
5017 const u8 *addr, const u8 *data,
5018 size_t data_len, const u8 *own_addr)
5019{
5020 if (bss->drv->l2 == NULL) {
5021 wpa_printf(MSG_DEBUG, "nl80211: No l2_packet to send EAPOL");
5022 return -1;
5023 }
5024
5025 if (l2_packet_send(bss->drv->l2, addr, ETH_P_EAPOL, data, data_len) <
5026 0)
5027 return -1;
5028 return 0;
5029}
5fb1a232
JM		 5030#endif /* CONFIG_AP */
5031
f10bfc9a 5032
db149ac9
JM		 5033static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
5034
5035static int wpa_driver_nl80211_hapd_send_eapol(
5036 void *priv, const u8 *addr, const u8 *data,
4378fc14 5037 size_t data_len, int encrypt, const u8 *own_addr, u32 flags)
db149ac9 5038{
a2e40bb6
FF		 5039 struct i802_bss *bss = priv;
5040 struct wpa_driver_nl80211_data *drv = bss->drv;
db149ac9
JM		 5041 struct ieee80211_hdr *hdr;
5042 size_t len;
5043 u8 *pos;
5044 int res;
4378fc14 5045 int qos = flags & WPA_STA_WMM;
db149ac9 5046
5fb1a232 5047#ifdef CONFIG_AP
f10bfc9a
JM		 5048 if (drv->no_monitor_iface_capab)
5049 return nl80211_send_eapol_data(bss, addr, data, data_len,
5050 own_addr);
5fb1a232 5051#endif /* CONFIG_AP */
f10bfc9a 5052
db149ac9
JM		 5053 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 +
5054 data_len;
5055 hdr = os_zalloc(len);
5056 if (hdr == NULL) {
5057 printf("malloc() failed for i802_send_data(len=%lu)\n",
5058 (unsigned long) len);
5059 return -1;
5060 }
5061
5062 hdr->frame_control =
5063 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA);
5064 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS);
5065 if (encrypt)
5066 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP);
db149ac9
JM		 5067 if (qos) {
5068 hdr->frame_control |=
5069 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4);
5070 }
db149ac9
JM		 5071
5072 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN);
5073 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
5074 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
5075 pos = (u8 *) (hdr + 1);
5076
db149ac9
JM		 5077 if (qos) {
5078 /* add an empty QoS header if needed */
5079 pos[0] = 0;
5080 pos[1] = 0;
5081 pos += 2;
5082 }
db149ac9
JM		 5083
5084 memcpy(pos, rfc1042_header, sizeof(rfc1042_header));
5085 pos += sizeof(rfc1042_header);
5086 WPA_PUT_BE16(pos, ETH_P_PAE);
5087 pos += 2;
5088 memcpy(pos, data, data_len);
5089
5090 res = wpa_driver_nl80211_send_frame(drv, (u8 *) hdr, len, encrypt);
5091 if (res < 0) {
5092 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - "
5093 "failed: %d (%s)",
5094 (unsigned long) len, errno, strerror(errno));
5095 }
7bf12757 5096 os_free(hdr);
db149ac9
JM		 5097
5098 return res;
5099}
5100
a8d6ffa4 5101
3234cba4
JM		 5102static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr,
5103 int total_flags,
4c32757d 5104 int flags_or, int flags_and)
a8d6ffa4 5105{
a2e40bb6
FF		 5106 struct i802_bss *bss = priv;
5107 struct wpa_driver_nl80211_data *drv = bss->drv;
a8d6ffa4 5108 struct nl_msg *msg, *flags = NULL;
7e76ee9c 5109 struct nl80211_sta_flag_update upd;
a8d6ffa4
JM		 5110
5111 msg = nlmsg_alloc();
5112 if (!msg)
5113 return -ENOMEM;
5114
5115 flags = nlmsg_alloc();
5116 if (!flags) {
5117 nlmsg_free(msg);
5118 return -ENOMEM;
5119 }
5120
5121 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
5122 0, NL80211_CMD_SET_STATION, 0);
5123
5124 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
3234cba4 5125 if_nametoindex(bss->ifname));
a8d6ffa4
JM		 5126 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5127
7e76ee9c
JM		 5128 /*
5129 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This
5130 * can be removed eventually.
5131 */
0de39516 5132 if (total_flags & WPA_STA_AUTHORIZED)
a8d6ffa4
JM		 5133 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_AUTHORIZED);
5134
0de39516 5135 if (total_flags & WPA_STA_WMM)
a8d6ffa4
JM		 5136 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_WME);
5137
0de39516 5138 if (total_flags & WPA_STA_SHORT_PREAMBLE)
a8d6ffa4
JM		 5139 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_SHORT_PREAMBLE);
5140
0de39516 5141 if (total_flags & WPA_STA_MFP)
a8d6ffa4
JM		 5142 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_MFP);
5143
5144 if (nla_put_nested(msg, NL80211_ATTR_STA_FLAGS, flags))
5145 goto nla_put_failure;
5146
7e76ee9c
JM		 5147 os_memset(&upd, 0, sizeof(upd));
5148 upd.mask = sta_flags_nl80211(flags_or | ~flags_and);
5149 upd.set = sta_flags_nl80211(flags_or);
5150 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
5151
a8d6ffa4
JM		 5152 nlmsg_free(flags);
5153
5154 return send_and_recv_msgs(drv, msg, NULL, NULL);
5155 nla_put_failure:
5156 nlmsg_free(flags);
5157 return -ENOBUFS;
5158}
5159
0915d02c 5160
1581b38b
JM		 5161static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv,
5162 struct wpa_driver_associate_params *params)
5163{
b1f625e0
EP		 5164 enum nl80211_iftype nlmode;
5165
5166 if (params->p2p) {
046b26a2
JM		 5167 wpa_printf(MSG_DEBUG, "nl80211: Setup AP operations for P2P "
5168 "group (GO)");
b1f625e0
EP		 5169 nlmode = NL80211_IFTYPE_P2P_GO;
5170 } else
5171 nlmode = NL80211_IFTYPE_AP;
5172
5173 if (wpa_driver_nl80211_set_mode(&drv->first_bss, nlmode) ||
f019981a 5174 wpa_driver_nl80211_set_freq(drv, params->freq, 0, 0)) {
460456f8 5175 nl80211_remove_monitor_interface(drv);
1581b38b 5176 return -1;
0915d02c 5177 }
1581b38b 5178
86957e62
JM		 5179 if (drv->no_monitor_iface_capab) {
5180 if (wpa_driver_nl80211_probe_req_report(&drv->first_bss, 1) < 0)
5181 {
5182 wpa_printf(MSG_DEBUG, "nl80211: Failed to enable "
5183 "Probe Request frame reporting in AP mode");
5184 /* Try to survive without this */
5185 }
5186 }
5187
5188 drv->ap_oper_freq = params->freq;
1581b38b
JM		 5189
5190 return 0;
5191}
1581b38b
JM		 5192
5193
5cc4d64b
JM		 5194static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv)
5195{
5196 struct nl_msg *msg;
5197 int ret = -1;
5198
5199 msg = nlmsg_alloc();
5200 if (!msg)
5201 return -1;
5202
5203 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
5204 NL80211_CMD_LEAVE_IBSS, 0);
5205 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5206 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5207 msg = NULL;
5208 if (ret) {
5209 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS failed: ret=%d "
5210 "(%s)", ret, strerror(-ret));
5211 goto nla_put_failure;
5212 }
5213
5214 ret = 0;
5215 wpa_printf(MSG_DEBUG, "nl80211: Leave IBSS request sent successfully");
5216
5217nla_put_failure:
5218 nlmsg_free(msg);
5219 return ret;
5220}
5221
5222
5223static int wpa_driver_nl80211_ibss(struct wpa_driver_nl80211_data *drv,
5224 struct wpa_driver_associate_params *params)
5225{
5226 struct nl_msg *msg;
5227 int ret = -1;
5228 int count = 0;
5229
5230 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS (ifindex=%d)", drv->ifindex);
5231
b1f625e0
EP		 5232 if (wpa_driver_nl80211_set_mode(&drv->first_bss,
5233 NL80211_IFTYPE_ADHOC)) {
5cc4d64b
JM		 5234 wpa_printf(MSG_INFO, "nl80211: Failed to set interface into "
5235 "IBSS mode");
5236 return -1;
5237 }
5238
5239retry:
5240 msg = nlmsg_alloc();
5241 if (!msg)
5242 return -1;
5243
5244 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
5245 NL80211_CMD_JOIN_IBSS, 0);
5246 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5247
5248 if (params->ssid == NULL || params->ssid_len > sizeof(drv->ssid))
5249 goto nla_put_failure;
5250
5251 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
5252 params->ssid, params->ssid_len);
5253 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
5254 params->ssid);
5255 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
5256 drv->ssid_len = params->ssid_len;
5257
5258 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
5259 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
5260
5261 ret = nl80211_set_conn_keys(params, msg);
5262 if (ret)
5263 goto nla_put_failure;
5264
a95795ad
JM		 5265 if (params->wpa_ie) {
5266 wpa_hexdump(MSG_DEBUG,
5267 " * Extra IEs for Beacon/Probe Response frames",
5268 params->wpa_ie, params->wpa_ie_len);
5269 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
5270 params->wpa_ie);
5271 }
5272
5cc4d64b
JM		 5273 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5274 msg = NULL;
5275 if (ret) {
5276 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS failed: ret=%d (%s)",
5277 ret, strerror(-ret));
5278 count++;
5279 if (ret == -EALREADY && count == 1) {
5280 wpa_printf(MSG_DEBUG, "nl80211: Retry IBSS join after "
5281 "forced leave");
5282 nl80211_leave_ibss(drv);
5283 nlmsg_free(msg);
5284 goto retry;
5285 }
5286
5287 goto nla_put_failure;
5288 }
5289 ret = 0;
5290 wpa_printf(MSG_DEBUG, "nl80211: Join IBSS request sent successfully");
5291
5292nla_put_failure:
5293 nlmsg_free(msg);
5294 return ret;
5295}
5296
5297
20f5a4c2
JM		 5298static unsigned int nl80211_get_assoc_bssid(struct wpa_driver_nl80211_data *drv,
5299 u8 *bssid)
5300{
5301 struct nl_msg *msg;
5302 int ret;
5303 struct nl80211_bss_info_arg arg;
5304
5305 os_memset(&arg, 0, sizeof(arg));
5306 msg = nlmsg_alloc();
5307 if (!msg)
5308 goto nla_put_failure;
5309
5310 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, NLM_F_DUMP,
5311 NL80211_CMD_GET_SCAN, 0);
5312 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5313
5314 arg.drv = drv;
5315 ret = send_and_recv_msgs(drv, msg, bss_info_handler, &arg);
5316 msg = NULL;
5317 if (ret == 0) {
5318 if (is_zero_ether_addr(arg.assoc_bssid))
5319 return -ENOTCONN;
5320 os_memcpy(bssid, arg.assoc_bssid, ETH_ALEN);
5321 return 0;
5322 }
5323 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
5324 "(%s)", ret, strerror(-ret));
5325nla_put_failure:
5326 nlmsg_free(msg);
5327 return drv->assoc_freq;
5328}
5329
5330
5331static int nl80211_disconnect(struct wpa_driver_nl80211_data *drv,
5332 const u8 *bssid)
5333{
5334 u8 addr[ETH_ALEN];
5335
5336 if (bssid == NULL) {
5337 int res = nl80211_get_assoc_bssid(drv, addr);
5338 if (res)
5339 return res;
5340 bssid = addr;
5341 }
5342
5343 return wpa_driver_nl80211_disconnect(drv, bssid,
5344 WLAN_REASON_PREV_AUTH_NOT_VALID);
5345}
5346
5347
cfaab580
ZY		 5348static int wpa_driver_nl80211_connect(
5349 struct wpa_driver_nl80211_data *drv,
5350 struct wpa_driver_associate_params *params)
5351{
5352 struct nl_msg *msg;
5353 enum nl80211_auth_type type;
5354 int ret = 0;
3f360238 5355 int algs;
cfaab580
ZY		 5356
5357 msg = nlmsg_alloc();
5358 if (!msg)
5359 return -1;
5360
5361 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex);
5362 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
5363 NL80211_CMD_CONNECT, 0);
5364
5365 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5366 if (params->bssid) {
5367 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
5368 MAC2STR(params->bssid));
5369 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
5370 }
5371 if (params->freq) {
5372 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
5373 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
5374 }
5375 if (params->ssid) {
5376 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
5377 params->ssid, params->ssid_len);
5378 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
5379 params->ssid);
5380 if (params->ssid_len > sizeof(drv->ssid))
5381 goto nla_put_failure;
5382 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
5383 drv->ssid_len = params->ssid_len;
5384 }
5385 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
5386 if (params->wpa_ie)
5387 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
5388 params->wpa_ie);
5389
3f360238
JM		 5390 algs = 0;
5391 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
5392 algs++;
5393 if (params->auth_alg & WPA_AUTH_ALG_SHARED)
5394 algs++;
5395 if (params->auth_alg & WPA_AUTH_ALG_LEAP)
5396 algs++;
5397 if (algs > 1) {
5398 wpa_printf(MSG_DEBUG, " * Leave out Auth Type for automatic "
5399 "selection");
5400 goto skip_auth_type;
5401 }
5402
abd9fafa 5403 if (params->auth_alg & WPA_AUTH_ALG_OPEN)
cfaab580 5404 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
abd9fafa 5405 else if (params->auth_alg & WPA_AUTH_ALG_SHARED)
cfaab580 5406 type = NL80211_AUTHTYPE_SHARED_KEY;
abd9fafa 5407 else if (params->auth_alg & WPA_AUTH_ALG_LEAP)
cfaab580 5408 type = NL80211_AUTHTYPE_NETWORK_EAP;
abd9fafa 5409 else if (params->auth_alg & WPA_AUTH_ALG_FT)
cfaab580
ZY		 5410 type = NL80211_AUTHTYPE_FT;
5411 else
5412 goto nla_put_failure;
5413
5414 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
5415 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
5416
3f360238 5417skip_auth_type:
64fa840a
JM		 5418 if (params->wpa_proto) {
5419 enum nl80211_wpa_versions ver = 0;
cfaab580 5420
64fa840a
JM		 5421 if (params->wpa_proto & WPA_PROTO_WPA)
5422 ver |= NL80211_WPA_VERSION_1;
5423 if (params->wpa_proto & WPA_PROTO_RSN)
5424 ver |= NL80211_WPA_VERSION_2;
cfaab580 5425
64fa840a 5426 wpa_printf(MSG_DEBUG, " * WPA Versions 0x%x", ver);
cfaab580
ZY		 5427 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
5428 }
5429
5430 if (params->pairwise_suite != CIPHER_NONE) {
c1bb3e0a 5431 int cipher;
cfaab580
ZY		 5432
5433 switch (params->pairwise_suite) {
5434 case CIPHER_WEP40:
5435 cipher = WLAN_CIPHER_SUITE_WEP40;
5436 break;
5437 case CIPHER_WEP104:
5438 cipher = WLAN_CIPHER_SUITE_WEP104;
5439 break;
5440 case CIPHER_CCMP:
5441 cipher = WLAN_CIPHER_SUITE_CCMP;
5442 break;
5443 case CIPHER_TKIP:
5444 default:
5445 cipher = WLAN_CIPHER_SUITE_TKIP;
5446 break;
5447 }
5448 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
5449 }
5450
5451 if (params->group_suite != CIPHER_NONE) {
c1bb3e0a 5452 int cipher;
cfaab580
ZY		 5453
5454 switch (params->group_suite) {
5455 case CIPHER_WEP40:
5456 cipher = WLAN_CIPHER_SUITE_WEP40;
5457 break;
5458 case CIPHER_WEP104:
5459 cipher = WLAN_CIPHER_SUITE_WEP104;
5460 break;
5461 case CIPHER_CCMP:
5462 cipher = WLAN_CIPHER_SUITE_CCMP;
5463 break;
5464 case CIPHER_TKIP:
5465 default:
5466 cipher = WLAN_CIPHER_SUITE_TKIP;
5467 break;
5468 }
5469 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
5470 }
5471
5472 if (params->key_mgmt_suite == KEY_MGMT_802_1X ||
5473 params->key_mgmt_suite == KEY_MGMT_PSK) {
5474 int mgmt = WLAN_AKM_SUITE_PSK;
5475
5476 switch (params->key_mgmt_suite) {
5477 case KEY_MGMT_802_1X:
5478 mgmt = WLAN_AKM_SUITE_8021X;
5479 break;
5480 case KEY_MGMT_PSK:
5481 default:
5482 mgmt = WLAN_AKM_SUITE_PSK;
5483 break;
5484 }
5485 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt);
5486 }
5487
5488 ret = nl80211_set_conn_keys(params, msg);
5489 if (ret)
5490 goto nla_put_failure;
5491
5492 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5493 msg = NULL;
5494 if (ret) {
5495 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d "
5496 "(%s)", ret, strerror(-ret));
20f5a4c2
JM		 5497 /*
5498 * cfg80211 does not currently accept new connection if we are
5499 * already connected. As a workaround, force disconnection and
5500 * try again once the driver indicates it completed
5501 * disconnection.
5502 */
5503 if (ret == -EALREADY)
5504 nl80211_disconnect(drv, params->bssid);
cfaab580
ZY		 5505 goto nla_put_failure;
5506 }
5507 ret = 0;
5508 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully");
5509
5510nla_put_failure:
5511 nlmsg_free(msg);
5512 return ret;
5513
5514}
5515
5516
c2a04078
JM		 5517static int wpa_driver_nl80211_associate(
5518 void *priv, struct wpa_driver_associate_params *params)
5519{
a2e40bb6
FF		 5520 struct i802_bss *bss = priv;
5521 struct wpa_driver_nl80211_data *drv = bss->drv;
c2a04078
JM		 5522 int ret = -1;
5523 struct nl_msg *msg;
5524
5cc4d64b 5525 if (params->mode == IEEE80211_MODE_AP)
1581b38b 5526 return wpa_driver_nl80211_ap(drv, params);
1581b38b 5527
5cc4d64b
JM		 5528 if (params->mode == IEEE80211_MODE_IBSS)
5529 return wpa_driver_nl80211_ibss(drv, params);
5530
4a867032 5531 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) {
b1f625e0
EP		 5532 enum nl80211_iftype nlmode = params->p2p ?
5533 NL80211_IFTYPE_P2P_CLIENT : NL80211_IFTYPE_STATION;
5534
5535 if (wpa_driver_nl80211_set_mode(priv, nlmode) < 0)
4a867032 5536 return -1;
cfaab580 5537 return wpa_driver_nl80211_connect(drv, params);
4a867032 5538 }
cfaab580 5539
c2a04078
JM		 5540 drv->associated = 0;
5541
5542 msg = nlmsg_alloc();
5543 if (!msg)
5544 return -1;
5545
5546 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)",
5547 drv->ifindex);
5548 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
5549 NL80211_CMD_ASSOCIATE, 0);
5550
5551 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5552 if (params->bssid) {
5553 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
5554 MAC2STR(params->bssid));
5555 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
5556 }
5557 if (params->freq) {
5558 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
5559 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
4832ecd7
JM		 5560 drv->assoc_freq = params->freq;
5561 } else
5562 drv->assoc_freq = 0;
c2a04078
JM		 5563 if (params->ssid) {
5564 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
5565 params->ssid, params->ssid_len);
5566 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
5567 params->ssid);
fd05d64e
JM		 5568 if (params->ssid_len > sizeof(drv->ssid))
5569 goto nla_put_failure;
5570 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
5571 drv->ssid_len = params->ssid_len;
c2a04078
JM		 5572 }
5573 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
5574 if (params->wpa_ie)
5575 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
5576 params->wpa_ie);
5577
aca01605
JM		 5578 if (params->pairwise_suite != CIPHER_NONE) {
5579 int cipher;
5580
5581 switch (params->pairwise_suite) {
5582 case CIPHER_WEP40:
5583 cipher = WLAN_CIPHER_SUITE_WEP40;
5584 break;
5585 case CIPHER_WEP104:
5586 cipher = WLAN_CIPHER_SUITE_WEP104;
5587 break;
5588 case CIPHER_CCMP:
5589 cipher = WLAN_CIPHER_SUITE_CCMP;
5590 break;
5591 case CIPHER_TKIP:
5592 default:
5593 cipher = WLAN_CIPHER_SUITE_TKIP;
5594 break;
5595 }
79c3124c 5596 wpa_printf(MSG_DEBUG, " * pairwise=0x%x", cipher);
aca01605
JM		 5597 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
5598 }
5599
5600 if (params->group_suite != CIPHER_NONE) {
5601 int cipher;
5602
5603 switch (params->group_suite) {
5604 case CIPHER_WEP40:
5605 cipher = WLAN_CIPHER_SUITE_WEP40;
5606 break;
5607 case CIPHER_WEP104:
5608 cipher = WLAN_CIPHER_SUITE_WEP104;
5609 break;
5610 case CIPHER_CCMP:
5611 cipher = WLAN_CIPHER_SUITE_CCMP;
5612 break;
5613 case CIPHER_TKIP:
5614 default:
5615 cipher = WLAN_CIPHER_SUITE_TKIP;
5616 break;
5617 }
79c3124c 5618 wpa_printf(MSG_DEBUG, " * group=0x%x", cipher);
aca01605
JM		 5619 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
5620 }
5621
e572fa33
JM		 5622#ifdef CONFIG_IEEE80211W
5623 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED)
5624 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED);
5625#endif /* CONFIG_IEEE80211W */
5626
01652550
JM		 5627 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
5628
62fa124c
JM		 5629 if (params->prev_bssid) {
5630 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR,
5631 MAC2STR(params->prev_bssid));
5632 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN,
5633 params->prev_bssid);
5634 }
5635
046b26a2
JM		 5636 if (params->p2p)
5637 wpa_printf(MSG_DEBUG, " * P2P group");
5638
c2a04078
JM		 5639 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5640 msg = NULL;
5641 if (ret) {
5642 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
5643 "(%s)", ret, strerror(-ret));
8856462d 5644 nl80211_dump_scan(drv);
c2a04078
JM		 5645 goto nla_put_failure;
5646 }
5647 ret = 0;
5648 wpa_printf(MSG_DEBUG, "nl80211: Association request send "
5649 "successfully");
5650
5651nla_put_failure:
5652 nlmsg_free(msg);
5653 return ret;
5654}
3f5285e8
JM		 5655
5656
ad1e68e6 5657static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv,
a1922f93 5658 int ifindex, enum nl80211_iftype mode)
3f5285e8 5659{
3f5285e8 5660 struct nl_msg *msg;
ad1e68e6
JM		 5661 int ret = -ENOBUFS;
5662
a1922f93
JM		 5663 wpa_printf(MSG_DEBUG, "nl80211: Set mode ifindex %d iftype %d (%s)",
5664 ifindex, mode, nl80211_iftype_str(mode));
5665
ad1e68e6
JM		 5666 msg = nlmsg_alloc();
5667 if (!msg)
5668 return -ENOMEM;
5669
5670 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
5671 0, NL80211_CMD_SET_INTERFACE, 0);
5672 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
5673 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode);
5674
5675 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5676 if (!ret)
5677 return 0;
5678nla_put_failure:
5679 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:"
5680 " %d (%s)", ifindex, mode, ret, strerror(-ret));
5681 return ret;
5682}
5683
5684
b1f625e0
EP		 5685static int wpa_driver_nl80211_set_mode(struct i802_bss *bss,
5686 enum nl80211_iftype nlmode)
ad1e68e6 5687{
a2e40bb6 5688 struct wpa_driver_nl80211_data *drv = bss->drv;
ad1e68e6 5689 int ret = -1;
26af9dca 5690 int i;
86957e62 5691 int was_ap = is_ap_interface(drv->nlmode);
1581b38b 5692
ad1e68e6
JM		 5693 if (nl80211_set_mode(drv, drv->ifindex, nlmode) == 0) {
5694 drv->nlmode = nlmode;
460456f8
JM		 5695 ret = 0;
5696 goto done;
ad1e68e6 5697 }
3f5285e8 5698
460456f8 5699 if (nlmode == drv->nlmode) {
c6e8e8e4
JM		 5700 wpa_printf(MSG_DEBUG, "nl80211: Interface already in "
5701 "requested mode - ignore error");
460456f8
JM		 5702 ret = 0;
5703 goto done; /* Already in the requested mode */
5704 }
3f5285e8 5705
3f5285e8
JM		 5706 /* mac80211 doesn't allow mode changes while the device is up, so
5707 * take the device down, try to set the mode again, and bring the
5708 * device back up.
5709 */
26af9dca
JM		 5710 wpa_printf(MSG_DEBUG, "nl80211: Try mode change after setting "
5711 "interface down");
5712 for (i = 0; i < 10; i++) {
6e8183d7
JM		 5713 int res;
5714 res = linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 0);
5715 if (res == -EACCES || res == -ENODEV)
5716 break;
5717 if (res == 0) {
26af9dca
JM		 5718 /* Try to set the mode again while the interface is
5719 * down */
5720 ret = nl80211_set_mode(drv, drv->ifindex, nlmode);
6e8183d7
JM		 5721 if (ret == -EACCES)
5722 break;
5723 res = linux_set_iface_flags(drv->ioctl_sock,
5724 bss->ifname, 1);
5725 if (res && !ret)
26af9dca 5726 ret = -1;
6e8183d7 5727 else if (ret != -EBUSY)
26af9dca
JM		 5728 break;
5729 } else
5730 wpa_printf(MSG_DEBUG, "nl80211: Failed to set "
5731 "interface down");
5732 os_sleep(0, 100000);
3f5285e8
JM		 5733 }
5734
c6e8e8e4
JM		 5735 if (!ret) {
5736 wpa_printf(MSG_DEBUG, "nl80211: Mode change succeeded while "
5737 "interface is down");
ad1e68e6 5738 drv->nlmode = nlmode;
7d9c3698 5739 drv->ignore_if_down_event = 1;
c6e8e8e4 5740 }
ad1e68e6 5741
460456f8 5742done:
b1f625e0 5743 if (!ret && is_ap_interface(nlmode)) {
460456f8 5744 /* Setup additional AP mode functionality if needed */
866af8b6
JM		 5745 if (!drv->no_monitor_iface_capab && drv->monitor_ifidx < 0 &&
5746 nl80211_create_monitor_interface(drv) &&
5747 !drv->no_monitor_iface_capab)
460456f8 5748 return -1;
b1f625e0 5749 } else if (!ret && !is_ap_interface(nlmode)) {
460456f8 5750 /* Remove additional AP mode functionality */
86957e62
JM		 5751 if (was_ap && drv->no_monitor_iface_capab)
5752 wpa_driver_nl80211_probe_req_report(bss, 0);
460456f8 5753 nl80211_remove_monitor_interface(drv);
a2e40bb6 5754 bss->beacon_set = 0;
460456f8 5755 }
460456f8 5756
c6e8e8e4
JM		 5757 if (ret)
5758 wpa_printf(MSG_DEBUG, "nl80211: Interface mode change to %d "
5759 "from %d failed", nlmode, drv->nlmode);
5760
3f5285e8
JM		 5761 return ret;
5762}
5763
5764
3f5285e8
JM		 5765static int wpa_driver_nl80211_get_capa(void *priv,
5766 struct wpa_driver_capa *capa)
5767{
a2e40bb6
FF		 5768 struct i802_bss *bss = priv;
5769 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8
JM		 5770 if (!drv->has_capability)
5771 return -1;
5772 os_memcpy(capa, &drv->capa, sizeof(*capa));
5773 return 0;
5774}
5775
5776
5777static int wpa_driver_nl80211_set_operstate(void *priv, int state)
5778{
a2e40bb6
FF		 5779 struct i802_bss *bss = priv;
5780 struct wpa_driver_nl80211_data *drv = bss->drv;
3f5285e8
JM		 5781
5782 wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)",
5783 __func__, drv->operstate, state, state ? "UP" : "DORMANT");
5784 drv->operstate = state;
08063178 5785 return netlink_send_oper_ifla(drv->netlink, drv->ifindex, -1,
e2d02c29 5786 state ? IF_OPER_UP : IF_OPER_DORMANT);
3f5285e8
JM		 5787}
5788
01652550
JM		 5789
5790static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized)
5791{
a2e40bb6
FF		 5792 struct i802_bss *bss = priv;
5793 struct wpa_driver_nl80211_data *drv = bss->drv;
01652550
JM		 5794 struct nl_msg *msg;
5795 struct nl80211_sta_flag_update upd;
5796
5797 msg = nlmsg_alloc();
5798 if (!msg)
5799 return -ENOMEM;
5800
5801 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
5802 0, NL80211_CMD_SET_STATION, 0);
5803
5804 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 5805 if_nametoindex(bss->ifname));
01652550
JM		 5806 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
5807
5808 os_memset(&upd, 0, sizeof(upd));
5809 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED);
5810 if (authorized)
5811 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED);
5812 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
5813
5814 return send_and_recv_msgs(drv, msg, NULL, NULL);
5815 nla_put_failure:
5816 return -ENOBUFS;
5817}
5818
3f5285e8 5819
f07ead6a
JM		 5820/* Set kernel driver on given frequency (MHz) */
5821static int i802_set_freq(void *priv, struct hostapd_freq_params *freq)
c5121837 5822{
f07ead6a
JM		 5823 struct i802_bss *bss = priv;
5824 struct wpa_driver_nl80211_data *drv = bss->drv;
5825 return wpa_driver_nl80211_set_freq(drv, freq->freq, freq->ht_enabled,
5826 freq->sec_channel_offset);
c5121837
JM		 5827}
5828
f7b3920c
JM		 5829
5830#if defined(HOSTAPD) || defined(CONFIG_AP)
c5121837 5831
c5121837
JM		 5832static inline int min_int(int a, int b)
5833{
5834 if (a < b)
5835 return a;
5836 return b;
5837}
5838
5839
5840static int get_key_handler(struct nl_msg *msg, void *arg)
5841{
5842 struct nlattr *tb[NL80211_ATTR_MAX + 1];
5843 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
5844
5845 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
5846 genlmsg_attrlen(gnlh, 0), NULL);
5847
5848 /*
5849 * TODO: validate the key index and mac address!
5850 * Otherwise, there's a race condition as soon as
5851 * the kernel starts sending key notifications.
5852 */
5853
5854 if (tb[NL80211_ATTR_KEY_SEQ])
5855 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]),
5856 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6));
5857 return NL_SKIP;
5858}
5859
5860
5861static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
5862 int idx, u8 *seq)
5863{
a2e40bb6
FF		 5864 struct i802_bss *bss = priv;
5865 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 5866 struct nl_msg *msg;
5867
5868 msg = nlmsg_alloc();
5869 if (!msg)
5870 return -ENOMEM;
5871
5872 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
5873 0, NL80211_CMD_GET_KEY, 0);
5874
5875 if (addr)
5876 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5877 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
5878 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
5879
5880 memset(seq, 0, 6);
5881
5882 return send_and_recv_msgs(drv, msg, get_key_handler, seq);
5883 nla_put_failure:
5884 return -ENOBUFS;
5885}
5886
5887
5888static int i802_set_rate_sets(void *priv, int *supp_rates, int *basic_rates,
5889 int mode)
5890{
a2e40bb6
FF		 5891 struct i802_bss *bss = priv;
5892 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 5893 struct nl_msg *msg;
5894 u8 rates[NL80211_MAX_SUPP_RATES];
5895 u8 rates_len = 0;
5896 int i;
5897
5898 msg = nlmsg_alloc();
5899 if (!msg)
5900 return -ENOMEM;
5901
5902 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
5903 NL80211_CMD_SET_BSS, 0);
5904
5905 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; i++)
5906 rates[rates_len++] = basic_rates[i] / 5;
5907
5908 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates);
5909
a2e40bb6 5910 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
c5121837
JM		 5911
5912 return send_and_recv_msgs(drv, msg, NULL, NULL);
5913 nla_put_failure:
5914 return -ENOBUFS;
5915}
5916
e3802622 5917
c5121837
JM		 5918static int i802_set_rts(void *priv, int rts)
5919{
a2e40bb6
FF		 5920 struct i802_bss *bss = priv;
5921 struct wpa_driver_nl80211_data *drv = bss->drv;
ad649451
JM		 5922 struct nl_msg *msg;
5923 int ret = -ENOBUFS;
5924 u32 val;
c5121837 5925
ad649451
JM		 5926 msg = nlmsg_alloc();
5927 if (!msg)
5928 return -ENOMEM;
c5121837 5929
ad649451
JM		 5930 if (rts >= 2347)
5931 val = (u32) -1;
5932 else
5933 val = rts;
c5121837 5934
ad649451
JM		 5935 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
5936 0, NL80211_CMD_SET_WIPHY, 0);
5937 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5938 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val);
5939
5940 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5941 if (!ret)
5942 return 0;
5943nla_put_failure:
5944 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: "
5945 "%d (%s)", rts, ret, strerror(-ret));
5946 return ret;
c5121837
JM		 5947}
5948
5949
5950static int i802_set_frag(void *priv, int frag)
5951{
a2e40bb6
FF		 5952 struct i802_bss *bss = priv;
5953 struct wpa_driver_nl80211_data *drv = bss->drv;
ad649451
JM		 5954 struct nl_msg *msg;
5955 int ret = -ENOBUFS;
5956 u32 val;
c5121837 5957
ad649451
JM		 5958 msg = nlmsg_alloc();
5959 if (!msg)
5960 return -ENOMEM;
c5121837 5961
ad649451
JM		 5962 if (frag >= 2346)
5963 val = (u32) -1;
5964 else
5965 val = frag;
c5121837 5966
ad649451
JM		 5967 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
5968 0, NL80211_CMD_SET_WIPHY, 0);
5969 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
5970 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val);
5971
5972 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
5973 if (!ret)
5974 return 0;
5975nla_put_failure:
5976 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold "
5977 "%d: %d (%s)", frag, ret, strerror(-ret));
5978 return ret;
c5121837
JM		 5979}
5980
5981
c5121837
JM		 5982static int i802_flush(void *priv)
5983{
a2e40bb6
FF		 5984 struct i802_bss *bss = priv;
5985 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 5986 struct nl_msg *msg;
5987
5988 msg = nlmsg_alloc();
5989 if (!msg)
5990 return -1;
5991
5992 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
5993 0, NL80211_CMD_DEL_STATION, 0);
5994
5995 /*
5996 * XXX: FIX! this needs to flush all VLANs too
5997 */
5998 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 5999 if_nametoindex(bss->ifname));
c5121837
JM		 6000
6001 return send_and_recv_msgs(drv, msg, NULL, NULL);
6002 nla_put_failure:
6003 return -ENOBUFS;
6004}
6005
6006
6007static int get_sta_handler(struct nl_msg *msg, void *arg)
6008{
6009 struct nlattr *tb[NL80211_ATTR_MAX + 1];
6010 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
6011 struct hostap_sta_driver_data *data = arg;
6012 struct nlattr *stats[NL80211_STA_INFO_MAX + 1];
6013 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
6014 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
6015 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
6016 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
6017 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
6018 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
6019 };
6020
6021 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
6022 genlmsg_attrlen(gnlh, 0), NULL);
6023
6024 /*
6025 * TODO: validate the interface and mac address!
6026 * Otherwise, there's a race condition as soon as
6027 * the kernel starts sending station notifications.
6028 */
6029
6030 if (!tb[NL80211_ATTR_STA_INFO]) {
6031 wpa_printf(MSG_DEBUG, "sta stats missing!");
6032 return NL_SKIP;
6033 }
6034 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX,
6035 tb[NL80211_ATTR_STA_INFO],
6036 stats_policy)) {
6037 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!");
6038 return NL_SKIP;
6039 }
6040
6041 if (stats[NL80211_STA_INFO_INACTIVE_TIME])
6042 data->inactive_msec =
6043 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]);
6044 if (stats[NL80211_STA_INFO_RX_BYTES])
6045 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]);
6046 if (stats[NL80211_STA_INFO_TX_BYTES])
6047 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]);
6048 if (stats[NL80211_STA_INFO_RX_PACKETS])
6049 data->rx_packets =
6050 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]);
6051 if (stats[NL80211_STA_INFO_TX_PACKETS])
6052 data->tx_packets =
6053 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]);
6054
6055 return NL_SKIP;
6056}
6057
6058static int i802_read_sta_data(void *priv, struct hostap_sta_driver_data *data,
6059 const u8 *addr)
6060{
a2e40bb6
FF		 6061 struct i802_bss *bss = priv;
6062 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 6063 struct nl_msg *msg;
6064
6065 os_memset(data, 0, sizeof(*data));
6066 msg = nlmsg_alloc();
6067 if (!msg)
6068 return -ENOMEM;
6069
6070 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
6071 0, NL80211_CMD_GET_STATION, 0);
6072
6073 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
a2e40bb6 6074 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
c5121837
JM		 6075
6076 return send_and_recv_msgs(drv, msg, get_sta_handler, data);
6077 nla_put_failure:
6078 return -ENOBUFS;
6079}
6080
6081
c5121837
JM		 6082static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
6083 int cw_min, int cw_max, int burst_time)
6084{
a2e40bb6
FF		 6085 struct i802_bss *bss = priv;
6086 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837
JM		 6087 struct nl_msg *msg;
6088 struct nlattr *txq, *params;
6089
6090 msg = nlmsg_alloc();
6091 if (!msg)
6092 return -1;
6093
6094 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
6095 0, NL80211_CMD_SET_WIPHY, 0);
6096
a2e40bb6 6097 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
c5121837
JM		 6098
6099 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS);
6100 if (!txq)
6101 goto nla_put_failure;
6102
6103 /* We are only sending parameters for a single TXQ at a time */
6104 params = nla_nest_start(msg, 1);
6105 if (!params)
6106 goto nla_put_failure;
6107
7e3c1781
JM		 6108 switch (queue) {
6109 case 0:
6110 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VO);
6111 break;
6112 case 1:
6113 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_VI);
6114 break;
6115 case 2:
6116 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BE);
6117 break;
6118 case 3:
6119 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, NL80211_TXQ_Q_BK);
6120 break;
6121 }
c5121837
JM		 6122 /* Burst time is configured in units of 0.1 msec and TXOP parameter in
6123 * 32 usec, so need to convert the value here. */
6124 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32);
6125 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min);
6126 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max);
6127 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs);
6128
6129 nla_nest_end(msg, params);
6130
6131 nla_nest_end(msg, txq);
6132
6133 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
6134 return 0;
6135 nla_put_failure:
6136 return -1;
6137}
6138
6139
c5121837
JM		 6140static int i802_set_sta_vlan(void *priv, const u8 *addr,
6141 const char *ifname, int vlan_id)
6142{
a2e40bb6
FF		 6143 struct i802_bss *bss = priv;
6144 struct wpa_driver_nl80211_data *drv = bss->drv;
c5121837 6145 struct nl_msg *msg;
cd1d72c1 6146 int ret = -ENOBUFS;
c5121837
JM		 6147
6148 msg = nlmsg_alloc();
6149 if (!msg)
6150 return -ENOMEM;
6151
6152 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
6153 0, NL80211_CMD_SET_STATION, 0);
6154
6155 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
a2e40bb6 6156 if_nametoindex(bss->ifname));
c5121837 6157 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
1c766b09 6158 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN,
c5121837
JM		 6159 if_nametoindex(ifname));
6160
cd1d72c1
JM		 6161 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6162 if (ret < 0) {
6163 wpa_printf(MSG_ERROR, "nl80211: NL80211_ATTR_STA_VLAN (addr="
6164 MACSTR " ifname=%s vlan_id=%d) failed: %d (%s)",
6165 MAC2STR(addr), ifname, vlan_id, ret,
6166 strerror(-ret));
6167 }
c5121837 6168 nla_put_failure:
cd1d72c1 6169 return ret;
c5121837
JM		 6170}
6171
fbbfcbac 6172
c5121837
JM		 6173static int i802_get_inact_sec(void *priv, const u8 *addr)
6174{
6175 struct hostap_sta_driver_data data;
6176 int ret;
6177
6178 data.inactive_msec = (unsigned long) -1;
6179 ret = i802_read_sta_data(priv, &data, addr);
6180 if (ret || data.inactive_msec == (unsigned long) -1)
6181 return -1;
6182 return data.inactive_msec / 1000;
6183}
6184
6185
6186static int i802_sta_clear_stats(void *priv, const u8 *addr)
6187{
6188#if 0
6189 /* TODO */
6190#endif
6191 return 0;
6192}
6193
6194
731723a5
JM		 6195static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
6196 int reason)
c5121837 6197{
a2e40bb6 6198 struct i802_bss *bss = priv;
c5121837
JM		 6199 struct ieee80211_mgmt mgmt;
6200
6201 memset(&mgmt, 0, sizeof(mgmt));
6202 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
6203 WLAN_FC_STYPE_DEAUTH);
6204 memcpy(mgmt.da, addr, ETH_ALEN);
731723a5
JM		 6205 memcpy(mgmt.sa, own_addr, ETH_ALEN);
6206 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
c5121837 6207 mgmt.u.deauth.reason_code = host_to_le16(reason);
a2e40bb6 6208 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
9f324b61
JM		 6209 IEEE80211_HDRLEN +
6210 sizeof(mgmt.u.deauth));
c5121837
JM		 6211}
6212
6213
731723a5
JM		 6214static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
6215 int reason)
c5121837 6216{
a2e40bb6 6217 struct i802_bss *bss = priv;
c5121837
JM		 6218 struct ieee80211_mgmt mgmt;
6219
6220 memset(&mgmt, 0, sizeof(mgmt));
6221 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
6222 WLAN_FC_STYPE_DISASSOC);
6223 memcpy(mgmt.da, addr, ETH_ALEN);
731723a5
JM		 6224 memcpy(mgmt.sa, own_addr, ETH_ALEN);
6225 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
c5121837 6226 mgmt.u.disassoc.reason_code = host_to_le16(reason);
a2e40bb6 6227 return wpa_driver_nl80211_send_mlme(bss, (u8 *) &mgmt,
9f324b61
JM		 6228 IEEE80211_HDRLEN +
6229 sizeof(mgmt.u.disassoc));
c5121837
JM		 6230}
6231
ee7ab173
JB		 6232#endif /* HOSTAPD || CONFIG_AP */
6233
6234#ifdef HOSTAPD
c5121837 6235
f07ead6a
JM		 6236static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
6237{
6238 int i;
6239 int *old;
6240
6241 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d",
6242 ifidx);
6243 for (i = 0; i < drv->num_if_indices; i++) {
6244 if (drv->if_indices[i] == 0) {
6245 drv->if_indices[i] = ifidx;
6246 return;
6247 }
6248 }
6249
6250 if (drv->if_indices != drv->default_if_indices)
6251 old = drv->if_indices;
6252 else
6253 old = NULL;
6254
6255 drv->if_indices = os_realloc(old,
6256 sizeof(int) * (drv->num_if_indices + 1));
6257 if (!drv->if_indices) {
6258 if (!old)
6259 drv->if_indices = drv->default_if_indices;
6260 else
6261 drv->if_indices = old;
6262 wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
6263 "interfaces");
6264 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
6265 return;
6266 } else if (!old)
6267 os_memcpy(drv->if_indices, drv->default_if_indices,
6268 sizeof(drv->default_if_indices));
6269 drv->if_indices[drv->num_if_indices] = ifidx;
6270 drv->num_if_indices++;
6271}
6272
6273
6274static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
6275{
6276 int i;
6277
6278 for (i = 0; i < drv->num_if_indices; i++) {
6279 if (drv->if_indices[i] == ifidx) {
6280 drv->if_indices[i] = 0;
6281 break;
6282 }
6283 }
6284}
6285
6286
6287static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
6288{
6289 int i;
6290
6291 for (i = 0; i < drv->num_if_indices; i++)
6292 if (drv->if_indices[i] == ifidx)
6293 return 1;
6294
6295 return 0;
6296}
6297
6298
6299static int i802_set_wds_sta(void *priv, const u8 *addr, int aid, int val,
6300 const char *bridge_ifname)
6301{
6302 struct i802_bss *bss = priv;
6303 struct wpa_driver_nl80211_data *drv = bss->drv;
6304 char name[IFNAMSIZ + 1];
6305
6306 os_snprintf(name, sizeof(name), "%s.sta%d", bss->ifname, aid);
6307 wpa_printf(MSG_DEBUG, "nl80211: Set WDS STA addr=" MACSTR
6308 " aid=%d val=%d name=%s", MAC2STR(addr), aid, val, name);
6309 if (val) {
6310 if (!if_nametoindex(name)) {
6311 if (nl80211_create_iface(drv, name,
6312 NL80211_IFTYPE_AP_VLAN,
6313 NULL, 1) < 0)
6314 return -1;
6315 if (bridge_ifname &&
6316 linux_br_add_if(drv->ioctl_sock, bridge_ifname,
6317 name) < 0)
6318 return -1;
6319 }
6320 linux_set_iface_flags(drv->ioctl_sock, name, 1);
6321 return i802_set_sta_vlan(priv, addr, name, 0);
6322 } else {
6323 i802_set_sta_vlan(priv, addr, bss->ifname, 0);
6324 return wpa_driver_nl80211_if_remove(priv, WPA_IF_AP_VLAN,
6325 name);
6326 }
6327}
6328
6329
6330static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
6331{
6332 struct wpa_driver_nl80211_data *drv = eloop_ctx;
6333 struct sockaddr_ll lladdr;
6334 unsigned char buf[3000];
6335 int len;
6336 socklen_t fromlen = sizeof(lladdr);
6337
6338 len = recvfrom(sock, buf, sizeof(buf), 0,
6339 (struct sockaddr *)&lladdr, &fromlen);
6340 if (len < 0) {
6341 perror("recv");
6342 return;
6343 }
6344
6345 if (have_ifidx(drv, lladdr.sll_ifindex))
6346 drv_event_eapol_rx(drv->ctx, lladdr.sll_addr, buf, len);
6347}
6348
6349
94627f6c 6350static int i802_check_bridge(struct wpa_driver_nl80211_data *drv,
e17a2477 6351 struct i802_bss *bss,
94627f6c
JM		 6352 const char *brname, const char *ifname)
6353{
6354 int ifindex;
6355 char in_br[IFNAMSIZ];
6356
e17a2477 6357 os_strlcpy(bss->brname, brname, IFNAMSIZ);
94627f6c
JM		 6358 ifindex = if_nametoindex(brname);
6359 if (ifindex == 0) {
6360 /*
6361 * Bridge was configured, but the bridge device does
6362 * not exist. Try to add it now.
6363 */
6364 if (linux_br_add(drv->ioctl_sock, brname) < 0) {
6365 wpa_printf(MSG_ERROR, "nl80211: Failed to add the "
6366 "bridge interface %s: %s",
6367 brname, strerror(errno));
6368 return -1;
6369 }
e17a2477 6370 bss->added_bridge = 1;
94627f6c
JM		 6371 add_ifidx(drv, if_nametoindex(brname));
6372 }
6373
6374 if (linux_br_get(in_br, ifname) == 0) {
6375 if (os_strcmp(in_br, brname) == 0)
6376 return 0; /* already in the bridge */
6377
6378 wpa_printf(MSG_DEBUG, "nl80211: Removing interface %s from "
6379 "bridge %s", ifname, in_br);
6380 if (linux_br_del_if(drv->ioctl_sock, in_br, ifname) < 0) {
6381 wpa_printf(MSG_ERROR, "nl80211: Failed to "
6382 "remove interface %s from bridge "
6383 "%s: %s",
6384 ifname, brname, strerror(errno));
6385 return -1;
6386 }
6387 }
6388
6389 wpa_printf(MSG_DEBUG, "nl80211: Adding interface %s into bridge %s",
6390 ifname, brname);
6391 if (linux_br_add_if(drv->ioctl_sock, brname, ifname) < 0) {
6392 wpa_printf(MSG_ERROR, "nl80211: Failed to add interface %s "
6393 "into bridge %s: %s",
6394 ifname, brname, strerror(errno));
6395 return -1;
6396 }
e17a2477 6397 bss->added_if_into_bridge = 1;
94627f6c
JM		 6398
6399 return 0;
6400}
6401
6402
92f475b4
JM		 6403static void *i802_init(struct hostapd_data *hapd,
6404 struct wpa_init_params *params)
c5121837
JM		 6405{
6406 struct wpa_driver_nl80211_data *drv;
a2e40bb6 6407 struct i802_bss *bss;
c5121837 6408 size_t i;
94627f6c
JM		 6409 char brname[IFNAMSIZ];
6410 int ifindex, br_ifindex;
6411 int br_added = 0;
c5121837 6412
f2ed8023 6413 bss = wpa_driver_nl80211_init(hapd, params->ifname, NULL);
a2e40bb6 6414 if (bss == NULL)
c5121837 6415 return NULL;
c5121837 6416
a2e40bb6 6417 drv = bss->drv;
0382097e 6418 drv->nlmode = NL80211_IFTYPE_AP;
94627f6c
JM		 6419 if (linux_br_get(brname, params->ifname) == 0) {
6420 wpa_printf(MSG_DEBUG, "nl80211: Interface %s is in bridge %s",
6421 params->ifname, brname);
6422 br_ifindex = if_nametoindex(brname);
6423 } else {
6424 brname[0] = '\0';
6425 br_ifindex = 0;
6426 }
6427
c5121837
JM		 6428 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
6429 drv->if_indices = drv->default_if_indices;
92f475b4 6430 for (i = 0; i < params->num_bridge; i++) {
94627f6c
JM		 6431 if (params->bridge[i]) {
6432 ifindex = if_nametoindex(params->bridge[i]);
6433 if (ifindex)
6434 add_ifidx(drv, ifindex);
6435 if (ifindex == br_ifindex)
6436 br_added = 1;
6437 }
c5121837 6438 }
94627f6c
JM		 6439 if (!br_added && br_ifindex &&
6440 (params->num_bridge == 0 || !params->bridge[0]))
6441 add_ifidx(drv, br_ifindex);
c5121837 6442
ad1e68e6
JM		 6443 /* start listening for EAPOL on the default AP interface */
6444 add_ifidx(drv, drv->ifindex);
6445
a2e40bb6 6446 if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 0))
6980c191 6447 goto failed;
ad1e68e6 6448
6980c191 6449 if (params->bssid) {
a2e40bb6 6450 if (linux_set_ifhwaddr(drv->ioctl_sock, bss->ifname,
2ac9688e 6451 params->bssid))
460456f8
JM		 6452 goto failed;
6453 }
ad1e68e6 6454
b1f625e0 6455 if (wpa_driver_nl80211_set_mode(bss, drv->nlmode)) {
ad1e68e6 6456 wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s "
a2e40bb6 6457 "into AP mode", bss->ifname);
bbaf0837 6458 goto failed;
ad1e68e6
JM		 6459 }
6460
94627f6c 6461 if (params->num_bridge && params->bridge[0] &&
e17a2477 6462 i802_check_bridge(drv, bss, params->bridge[0], params->ifname) < 0)
94627f6c
JM		 6463 goto failed;
6464
a2e40bb6 6465 if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 1))
bbaf0837 6466 goto failed;
ad1e68e6
JM		 6467
6468 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE));
6469 if (drv->eapol_sock < 0) {
6470 perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)");
bbaf0837 6471 goto failed;
ad1e68e6
JM		 6472 }
6473
6474 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL))
6475 {
6476 printf("Could not register read socket for eapol\n");
c5121837 6477 goto failed;
ad1e68e6
JM		 6478 }
6479
a2e40bb6 6480 if (linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, params->own_addr))
bbaf0837 6481 goto failed;
c5121837 6482
a2e40bb6 6483 return bss;
c5121837
JM		 6484
6485failed:
460456f8 6486 nl80211_remove_monitor_interface(drv);
23970868
JM		 6487 rfkill_deinit(drv->rfkill);
6488 netlink_deinit(drv->netlink);
c5121837
JM		 6489 if (drv->ioctl_sock >= 0)
6490 close(drv->ioctl_sock);
c5121837
JM		 6491
6492 genl_family_put(drv->nl80211);
6493 nl_cache_free(drv->nl_cache);
a65a9aed 6494 nl80211_handle_destroy(drv->nl_handle);
c5121837 6495 nl_cb_put(drv->nl_cb);
23970868 6496 eloop_unregister_read_sock(nl_socket_get_fd(drv->nl_handle_event));
c5121837 6497
bbaf0837
JM		 6498 os_free(drv);
6499 return NULL;
6500}
c5121837 6501
c5121837 6502
bbaf0837
JM		 6503static void i802_deinit(void *priv)
6504{
6505 wpa_driver_nl80211_deinit(priv);
c5121837
JM		 6506}
6507
6508#endif /* HOSTAPD */
6509
6510
22a7c9d7
JM		 6511static enum nl80211_iftype wpa_driver_nl80211_if_type(
6512 enum wpa_driver_if_type type)
6513{
6514 switch (type) {
6515 case WPA_IF_STATION:
9f51b113 6516 return NL80211_IFTYPE_STATION;
75bde05d
JM		 6517 case WPA_IF_P2P_CLIENT:
6518 case WPA_IF_P2P_GROUP:
9f51b113 6519 return NL80211_IFTYPE_P2P_CLIENT;
22a7c9d7
JM		 6520 case WPA_IF_AP_VLAN:
6521 return NL80211_IFTYPE_AP_VLAN;
6522 case WPA_IF_AP_BSS:
6523 return NL80211_IFTYPE_AP;
9f51b113
JB		 6524 case WPA_IF_P2P_GO:
6525 return NL80211_IFTYPE_P2P_GO;
22a7c9d7
JM		 6526 }
6527 return -1;
6528}
6529
6530
482856c8
JM		 6531#ifdef CONFIG_P2P
6532
f2ed8023
JM		 6533static int nl80211_addr_in_use(struct nl80211_global *global, const u8 *addr)
6534{
6535 struct wpa_driver_nl80211_data *drv;
6536 dl_list_for_each(drv, &global->interfaces,
6537 struct wpa_driver_nl80211_data, list) {
6538 if (os_memcmp(addr, drv->addr, ETH_ALEN) == 0)
6539 return 1;
6540 }
6541 return 0;
6542}
6543
6544
6545static int nl80211_p2p_interface_addr(struct wpa_driver_nl80211_data *drv,
6546 u8 *new_addr)
6547{
6548 unsigned int idx;
6549
6550 if (!drv->global)
6551 return -1;
6552
6553 os_memcpy(new_addr, drv->addr, ETH_ALEN);
6554 for (idx = 0; idx < 64; idx++) {
6555 new_addr[0] = drv->addr[0] | 0x02;
6556 new_addr[0] ^= idx << 2;
6557 if (!nl80211_addr_in_use(drv->global, new_addr))
6558 break;
6559 }
6560 if (idx == 64)
6561 return -1;
6562
6563 wpa_printf(MSG_DEBUG, "nl80211: Assigned new P2P Interface Address "
6564 MACSTR, MAC2STR(new_addr));
6565
6566 return 0;
6567}
6568
482856c8
JM		 6569#endif /* CONFIG_P2P */
6570
f2ed8023 6571
7ab68865 6572static int wpa_driver_nl80211_if_add(void *priv, enum wpa_driver_if_type type,
8043e725 6573 const char *ifname, const u8 *addr,
f3585c8a 6574 void *bss_ctx, void **drv_priv,
e17a2477
JM		 6575 char *force_ifname, u8 *if_addr,
6576 const char *bridge)
22a7c9d7 6577{
a2e40bb6
FF		 6578 struct i802_bss *bss = priv;
6579 struct wpa_driver_nl80211_data *drv = bss->drv;
22a7c9d7
JM		 6580 int ifidx;
6581#ifdef HOSTAPD
a2e40bb6 6582 struct i802_bss *new_bss = NULL;
22a7c9d7
JM		 6583
6584 if (type == WPA_IF_AP_BSS) {
a2e40bb6
FF		 6585 new_bss = os_zalloc(sizeof(*new_bss));
6586 if (new_bss == NULL)
22a7c9d7
JM		 6587 return -1;
6588 }
6589#endif /* HOSTAPD */
6590
f3585c8a
JM		 6591 if (addr)
6592 os_memcpy(if_addr, addr, ETH_ALEN);
22a7c9d7 6593 ifidx = nl80211_create_iface(drv, ifname,
fbbfcbac
FF		 6594 wpa_driver_nl80211_if_type(type), addr,
6595 0);
22a7c9d7
JM		 6596 if (ifidx < 0) {
6597#ifdef HOSTAPD
a2e40bb6 6598 os_free(new_bss);
22a7c9d7
JM		 6599#endif /* HOSTAPD */
6600 return -1;
6601 }
6602
f3585c8a 6603 if (!addr &&
c55f774d
JM		 6604 linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, if_addr) < 0) {
6605 nl80211_remove_iface(drv, ifidx);
f3585c8a 6606 return -1;
c55f774d
JM		 6607 }
6608
6609#ifdef CONFIG_P2P
6610 if (!addr &&
6611 (type == WPA_IF_P2P_CLIENT || type == WPA_IF_P2P_GROUP ||
6612 type == WPA_IF_P2P_GO)) {
6613 /* Enforce unique P2P Interface Address */
6614 u8 new_addr[ETH_ALEN], own_addr[ETH_ALEN];
6615
6616 if (linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, own_addr)
6617 < 0 ||
6618 linux_get_ifhwaddr(drv->ioctl_sock, ifname, new_addr) < 0)
6619 {
6620 nl80211_remove_iface(drv, ifidx);
6621 return -1;
6622 }
6623 if (os_memcmp(own_addr, new_addr, ETH_ALEN) == 0) {
6624 wpa_printf(MSG_DEBUG, "nl80211: Allocate new address "
6625 "for P2P group interface");
f2ed8023 6626 if (nl80211_p2p_interface_addr(drv, new_addr) < 0) {
c55f774d
JM		 6627 nl80211_remove_iface(drv, ifidx);
6628 return -1;
6629 }
c55f774d
JM		 6630 if (linux_set_ifhwaddr(drv->ioctl_sock, ifname,
6631 new_addr) < 0) {
6632 nl80211_remove_iface(drv, ifidx);
6633 return -1;
6634 }
c55f774d 6635 }
f67eeb5c 6636 os_memcpy(if_addr, new_addr, ETH_ALEN);
c55f774d
JM		 6637 }
6638#endif /* CONFIG_P2P */
f3585c8a 6639
22a7c9d7 6640#ifdef HOSTAPD
e17a2477
JM		 6641 if (bridge &&
6642 i802_check_bridge(drv, new_bss, bridge, ifname) < 0) {
6643 wpa_printf(MSG_ERROR, "nl80211: Failed to add the new "
6644 "interface %s to a bridge %s", ifname, bridge);
6645 nl80211_remove_iface(drv, ifidx);
6646 os_free(new_bss);
6647 return -1;
6648 }
6649
22a7c9d7 6650 if (type == WPA_IF_AP_BSS) {
34f2f814
JM		 6651 if (linux_set_iface_flags(drv->ioctl_sock, ifname, 1)) {
6652 nl80211_remove_iface(drv, ifidx);
07179987 6653 os_free(new_bss);
22a7c9d7
JM		 6654 return -1;
6655 }
a2e40bb6
FF		 6656 os_strlcpy(new_bss->ifname, ifname, IFNAMSIZ);
6657 new_bss->ifindex = ifidx;
6658 new_bss->drv = drv;
6659 new_bss->next = drv->first_bss.next;
6660 drv->first_bss.next = new_bss;
6661 if (drv_priv)
6662 *drv_priv = new_bss;
22a7c9d7
JM		 6663 }
6664#endif /* HOSTAPD */
6665
ff6a158b
JM		 6666 if (drv->global)
6667 drv->global->if_add_ifindex = ifidx;
6668
22a7c9d7
JM		 6669 return 0;
6670}
6671
6672
6673static int wpa_driver_nl80211_if_remove(void *priv,
6674 enum wpa_driver_if_type type,
6675 const char *ifname)
6676{
a2e40bb6
FF		 6677 struct i802_bss *bss = priv;
6678 struct wpa_driver_nl80211_data *drv = bss->drv;
22a7c9d7
JM		 6679 int ifindex = if_nametoindex(ifname);
6680
e748062b
JM		 6681 wpa_printf(MSG_DEBUG, "nl80211: %s(type=%d ifname=%s) ifindex=%d",
6682 __func__, type, ifname, ifindex);
6683 if (ifindex <= 0)
6684 return -1;
e17a2477
JM		 6685
6686#ifdef HOSTAPD
6687 if (bss->added_if_into_bridge) {
6688 if (linux_br_del_if(drv->ioctl_sock, bss->brname, bss->ifname)
6689 < 0)
6690 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
6691 "interface %s from bridge %s: %s",
6692 bss->ifname, bss->brname, strerror(errno));
6693 }
6694 if (bss->added_bridge) {
6695 if (linux_br_del(drv->ioctl_sock, bss->brname) < 0)
6696 wpa_printf(MSG_INFO, "nl80211: Failed to remove "
6697 "bridge %s: %s",
6698 bss->brname, strerror(errno));
6699 }
6700#endif /* HOSTAPD */
6701
22a7c9d7
JM		 6702 nl80211_remove_iface(drv, ifindex);
6703
6704#ifdef HOSTAPD
a2e40bb6
FF		 6705 if (type != WPA_IF_AP_BSS)
6706 return 0;
6707
6708 if (bss != &drv->first_bss) {
8546ea19 6709 struct i802_bss *tbss;
a2e40bb6 6710
8546ea19
JM		 6711 for (tbss = &drv->first_bss; tbss; tbss = tbss->next) {
6712 if (tbss->next == bss) {
6713 tbss->next = bss->next;
6714 os_free(bss);
6715 bss = NULL;
6716 break;
6717 }
22a7c9d7 6718 }
8546ea19
JM		 6719 if (bss)
6720 wpa_printf(MSG_INFO, "nl80211: %s - could not find "
6721 "BSS %p in the list", __func__, bss);
22a7c9d7
JM		 6722 }
6723#endif /* HOSTAPD */
6724
6725 return 0;
6726}
6727
6728
55777702
JM		 6729static int cookie_handler(struct nl_msg *msg, void *arg)
6730{
6731 struct nlattr *tb[NL80211_ATTR_MAX + 1];
6732 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
6733 u64 *cookie = arg;
6734 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
6735 genlmsg_attrlen(gnlh, 0), NULL);
6736 if (tb[NL80211_ATTR_COOKIE])
6737 *cookie = nla_get_u64(tb[NL80211_ATTR_COOKIE]);
6738 return NL_SKIP;
6739}
6740
6741
9884f9cc 6742static int nl80211_send_frame_cmd(struct wpa_driver_nl80211_data *drv,
5dfca53f
JB		 6743 unsigned int freq, unsigned int wait,
6744 const u8 *buf, size_t buf_len,
6745 u64 *cookie_out)
9884f9cc
JB		 6746{
6747 struct nl_msg *msg;
6748 u64 cookie;
6749 int ret = -1;
6750
6751 msg = nlmsg_alloc();
6752 if (!msg)
6753 return -1;
6754
6755 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
6756 NL80211_CMD_FRAME, 0);
6757
6758 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6759 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
9db931ed
JM		 6760 if (wait)
6761 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, wait);
5dfca53f 6762 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
9884f9cc
JB		 6763 NLA_PUT(msg, NL80211_ATTR_FRAME, buf_len, buf);
6764
6765 cookie = 0;
6766 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
6767 msg = NULL;
6768 if (ret) {
6769 wpa_printf(MSG_DEBUG, "nl80211: Frame command failed: ret=%d "
a05225c8
JM		 6770 "(%s) (freq=%u wait=%u)", ret, strerror(-ret),
6771 freq, wait);
9884f9cc
JB		 6772 goto nla_put_failure;
6773 }
6774 wpa_printf(MSG_DEBUG, "nl80211: Frame TX command accepted; "
6775 "cookie 0x%llx", (long long unsigned int) cookie);
6776
6777 if (cookie_out)
6778 *cookie_out = cookie;
6779
6780nla_put_failure:
6781 nlmsg_free(msg);
6782 return ret;
6783}
6784
6785
58f6fbe0 6786static int wpa_driver_nl80211_send_action(void *priv, unsigned int freq,
190b9062 6787 unsigned int wait_time,
58f6fbe0
JM		 6788 const u8 *dst, const u8 *src,
6789 const u8 *bssid,
6790 const u8 *data, size_t data_len)
6791{
a2e40bb6
FF		 6792 struct i802_bss *bss = priv;
6793 struct wpa_driver_nl80211_data *drv = bss->drv;
58f6fbe0 6794 int ret = -1;
58f6fbe0
JM		 6795 u8 *buf;
6796 struct ieee80211_hdr *hdr;
58f6fbe0 6797
5dfca53f
JB		 6798 wpa_printf(MSG_DEBUG, "nl80211: Send Action frame (ifindex=%d, "
6799 "wait=%d ms)", drv->ifindex, wait_time);
58f6fbe0
JM		 6800
6801 buf = os_zalloc(24 + data_len);
6802 if (buf == NULL)
6803 return ret;
6804 os_memcpy(buf + 24, data, data_len);
6805 hdr = (struct ieee80211_hdr *) buf;
6806 hdr->frame_control =
6807 IEEE80211_FC(WLAN_FC_TYPE_MGMT, WLAN_FC_STYPE_ACTION);
6808 os_memcpy(hdr->addr1, dst, ETH_ALEN);
6809 os_memcpy(hdr->addr2, src, ETH_ALEN);
6810 os_memcpy(hdr->addr3, bssid, ETH_ALEN);
6811
b1f625e0 6812 if (is_ap_interface(drv->nlmode))
58f6fbe0 6813 ret = wpa_driver_nl80211_send_mlme(priv, buf, 24 + data_len);
9884f9cc 6814 else
5dfca53f
JB		 6815 ret = nl80211_send_frame_cmd(drv, freq, wait_time, buf,
6816 24 + data_len,
9884f9cc 6817 &drv->send_action_cookie);
58f6fbe0 6818
f8bf1421 6819 os_free(buf);
58f6fbe0
JM		 6820 return ret;
6821}
6822
6823
5dfca53f
JB		 6824static void wpa_driver_nl80211_send_action_cancel_wait(void *priv)
6825{
6826 struct i802_bss *bss = priv;
6827 struct wpa_driver_nl80211_data *drv = bss->drv;
6828 struct nl_msg *msg;
6829 int ret;
6830
6831 msg = nlmsg_alloc();
6832 if (!msg)
6833 return;
6834
6835 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
6836 NL80211_CMD_FRAME_WAIT_CANCEL, 0);
6837
6838 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6839 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->send_action_cookie);
6840
6841 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6842 msg = NULL;
6843 if (ret)
6844 wpa_printf(MSG_DEBUG, "nl80211: wait cancel failed: ret=%d "
6845 "(%s)", ret, strerror(-ret));
6846
6847 nla_put_failure:
6848 nlmsg_free(msg);
6849}
6850
6851
55777702
JM		 6852static int wpa_driver_nl80211_remain_on_channel(void *priv, unsigned int freq,
6853 unsigned int duration)
6854{
a2e40bb6
FF		 6855 struct i802_bss *bss = priv;
6856 struct wpa_driver_nl80211_data *drv = bss->drv;
55777702
JM		 6857 struct nl_msg *msg;
6858 int ret;
6859 u64 cookie;
6860
6861 msg = nlmsg_alloc();
6862 if (!msg)
6863 return -1;
6864
6865 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
6866 NL80211_CMD_REMAIN_ON_CHANNEL, 0);
6867
6868 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6869 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
6870 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
6871
6872 cookie = 0;
6873 ret = send_and_recv_msgs(drv, msg, cookie_handler, &cookie);
6874 if (ret == 0) {
6875 wpa_printf(MSG_DEBUG, "nl80211: Remain-on-channel cookie "
6876 "0x%llx for freq=%u MHz duration=%u",
6877 (long long unsigned int) cookie, freq, duration);
6878 drv->remain_on_chan_cookie = cookie;
531f0331 6879 drv->pending_remain_on_chan = 1;
55777702
JM		 6880 return 0;
6881 }
6882 wpa_printf(MSG_DEBUG, "nl80211: Failed to request remain-on-channel "
15ed5535
JM		 6883 "(freq=%d duration=%u): %d (%s)",
6884 freq, duration, ret, strerror(-ret));
55777702
JM		 6885nla_put_failure:
6886 return -1;
6887}
6888
6889
6890static int wpa_driver_nl80211_cancel_remain_on_channel(void *priv)
6891{
a2e40bb6
FF		 6892 struct i802_bss *bss = priv;
6893 struct wpa_driver_nl80211_data *drv = bss->drv;
55777702
JM		 6894 struct nl_msg *msg;
6895 int ret;
6896
6897 if (!drv->pending_remain_on_chan) {
6898 wpa_printf(MSG_DEBUG, "nl80211: No pending remain-on-channel "
6899 "to cancel");
6900 return -1;
6901 }
6902
6903 wpa_printf(MSG_DEBUG, "nl80211: Cancel remain-on-channel with cookie "
6904 "0x%llx",
6905 (long long unsigned int) drv->remain_on_chan_cookie);
6906
6907 msg = nlmsg_alloc();
6908 if (!msg)
6909 return -1;
6910
6911 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
6912 NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, 0);
6913
6914 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
6915 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, drv->remain_on_chan_cookie);
6916
6917 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
6918 if (ret == 0)
6919 return 0;
6920 wpa_printf(MSG_DEBUG, "nl80211: Failed to cancel remain-on-channel: "
6921 "%d (%s)", ret, strerror(-ret));
6922nla_put_failure:
6923 return -1;
6924}
6925
6926
504e905c
JM		 6927static int wpa_driver_nl80211_probe_req_report(void *priv, int report)
6928{
a2e40bb6
FF		 6929 struct i802_bss *bss = priv;
6930 struct wpa_driver_nl80211_data *drv = bss->drv;
504e905c 6931
5582a5d1
JB		 6932 if (!report) {
6933 if (drv->nl_handle_preq) {
6934 eloop_unregister_read_sock(
6935 nl_socket_get_fd(drv->nl_handle_preq));
6936 nl_cache_free(drv->nl_cache_preq);
6937 nl80211_handle_destroy(drv->nl_handle_preq);
6938 drv->nl_handle_preq = NULL;
6939 }
6940 return 0;
6941 }
6942
6943 if (drv->nl_handle_preq) {
6944 wpa_printf(MSG_DEBUG, "nl80211: Probe Request reporting "
6945 "already on!");
6946 return 0;
6947 }
6948
6949 drv->nl_handle_preq = nl80211_handle_alloc(drv->nl_cb);
6950 if (drv->nl_handle_preq == NULL) {
6951 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate "
6952 "netlink callbacks (preq)");
6953 goto out_err1;
6954 }
6955
6956 if (genl_connect(drv->nl_handle_preq)) {
6957 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to "
6958 "generic netlink (preq)");
6959 goto out_err2;
6960 return -1;
504e905c
JM		 6961 }
6962
5582a5d1
JB		 6963 if (genl_ctrl_alloc_cache(drv->nl_handle_preq,
6964 &drv->nl_cache_preq) < 0) {
6965 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
6966 "netlink cache (preq)");
6967 goto out_err2;
6968 }
5582a5d1
JB		 6969
6970 if (nl80211_register_frame(drv, drv->nl_handle_preq,
6971 (WLAN_FC_TYPE_MGMT << 2) |
6972 (WLAN_FC_STYPE_PROBE_REQ << 4),
6973 NULL, 0) < 0) {
6974 goto out_err3;
6975 }
6976
6977 eloop_register_read_sock(nl_socket_get_fd(drv->nl_handle_preq),
6978 wpa_driver_nl80211_event_receive, drv,
6979 drv->nl_handle_preq);
6980
504e905c 6981 return 0;
5582a5d1
JB		 6982
6983 out_err3:
6984 nl_cache_free(drv->nl_cache_preq);
6985 out_err2:
6986 nl80211_handle_destroy(drv->nl_handle_preq);
6987 drv->nl_handle_preq = NULL;
6988 out_err1:
6989 return -1;
504e905c
JM		 6990}
6991
6992
4e5cb1a3
JM		 6993static int nl80211_disable_11b_rates(struct wpa_driver_nl80211_data *drv,
6994 int ifindex, int disabled)
6995{
6996 struct nl_msg *msg;
6997 struct nlattr *bands, *band;
6998 int ret;
6999
7000 msg = nlmsg_alloc();
7001 if (!msg)
7002 return -1;
7003
7004 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
7005 NL80211_CMD_SET_TX_BITRATE_MASK, 0);
7006 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
7007
7008 bands = nla_nest_start(msg, NL80211_ATTR_TX_RATES);
7009 if (!bands)
7010 goto nla_put_failure;
7011
7012 /*
7013 * Disable 2 GHz rates 1, 2, 5.5, 11 Mbps by masking out everything
7014 * else apart from 6, 9, 12, 18, 24, 36, 48, 54 Mbps from non-MCS
7015 * rates. All 5 GHz rates are left enabled.
7016 */
7017 band = nla_nest_start(msg, NL80211_BAND_2GHZ);
7018 if (!band)
7019 goto nla_put_failure;
7020 NLA_PUT(msg, NL80211_TXRATE_LEGACY, 8,
7021 "\x0c\x12\x18\x24\x30\x48\x60\x6c");
7022 nla_nest_end(msg, band);
7023
7024 nla_nest_end(msg, bands);
7025
7026 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
7027 msg = NULL;
7028 if (ret) {
7029 wpa_printf(MSG_DEBUG, "nl80211: Set TX rates failed: ret=%d "
7030 "(%s)", ret, strerror(-ret));
7031 }
7032
7033 return ret;
7034
7035nla_put_failure:
7036 nlmsg_free(msg);
7037 return -1;
7038}
7039
7040
7041static int wpa_driver_nl80211_disable_11b_rates(void *priv, int disabled)
7042{
a2e40bb6
FF		 7043 struct i802_bss *bss = priv;
7044 struct wpa_driver_nl80211_data *drv = bss->drv;
4e5cb1a3
JM		 7045 drv->disable_11b_rates = disabled;
7046 return nl80211_disable_11b_rates(drv, drv->ifindex, disabled);
7047}
7048
7049
af473088
JM		 7050static int wpa_driver_nl80211_deinit_ap(void *priv)
7051{
a2e40bb6
FF		 7052 struct i802_bss *bss = priv;
7053 struct wpa_driver_nl80211_data *drv = bss->drv;
b1f625e0 7054 if (!is_ap_interface(drv->nlmode))
af473088
JM		 7055 return -1;
7056 wpa_driver_nl80211_del_beacon(drv);
b1f625e0 7057 return wpa_driver_nl80211_set_mode(priv, NL80211_IFTYPE_STATION);
af473088
JM		 7058}
7059
7060
207ef3fb
JM		 7061static void wpa_driver_nl80211_resume(void *priv)
7062{
a2e40bb6
FF		 7063 struct i802_bss *bss = priv;
7064 struct wpa_driver_nl80211_data *drv = bss->drv;
7065 if (linux_set_iface_flags(drv->ioctl_sock, bss->ifname, 1)) {
207ef3fb
JM		 7066 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface up on "
7067 "resume event");
7068 }
7069}
7070
7071
7b90c16a
JM		 7072static int nl80211_send_ft_action(void *priv, u8 action, const u8 *target_ap,
7073 const u8 *ies, size_t ies_len)
7074{
7075 struct i802_bss *bss = priv;
7076 struct wpa_driver_nl80211_data *drv = bss->drv;
7077 int ret;
7078 u8 *data, *pos;
7079 size_t data_len;
7080 u8 own_addr[ETH_ALEN];
7081
7082 if (linux_get_ifhwaddr(drv->ioctl_sock, bss->ifname, own_addr) < 0)
7083 return -1;
7084
7085 if (action != 1) {
7086 wpa_printf(MSG_ERROR, "nl80211: Unsupported send_ft_action "
7087 "action %d", action);
7088 return -1;
7089 }
7090
7091 /*
7092 * Action frame payload:
7093 * Category[1] = 6 (Fast BSS Transition)
7094 * Action[1] = 1 (Fast BSS Transition Request)
7095 * STA Address
7096 * Target AP Address
7097 * FT IEs
7098 */
7099
73fc617d
JM		 7100 data_len = 2 + 2 * ETH_ALEN + ies_len;
7101 data = os_malloc(data_len);
7b90c16a
JM		 7102 if (data == NULL)
7103 return -1;
7104 pos = data;
7105 *pos++ = 0x06; /* FT Action category */
7106 *pos++ = action;
7107 os_memcpy(pos, own_addr, ETH_ALEN);
7108 pos += ETH_ALEN;
7109 os_memcpy(pos, target_ap, ETH_ALEN);
7110 pos += ETH_ALEN;
7111 os_memcpy(pos, ies, ies_len);
7112
190b9062
JB		 7113 ret = wpa_driver_nl80211_send_action(bss, drv->assoc_freq, 0,
7114 drv->bssid, own_addr, drv->bssid,
7b90c16a
JM		 7115 data, data_len);
7116 os_free(data);
7117
7118 return ret;
7119}
7120
7121
b625473c
JM		 7122static int nl80211_signal_monitor(void *priv, int threshold, int hysteresis)
7123{
7124 struct i802_bss *bss = priv;
7125 struct wpa_driver_nl80211_data *drv = bss->drv;
7126 struct nl_msg *msg, *cqm = NULL;
7127
7128 wpa_printf(MSG_DEBUG, "nl80211: Signal monitor threshold=%d "
7129 "hysteresis=%d", threshold, hysteresis);
7130
7131 msg = nlmsg_alloc();
7132 if (!msg)
7133 return -1;
7134
7135 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
7136 0, NL80211_CMD_SET_CQM, 0);
7137
7138 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
7139
7140 cqm = nlmsg_alloc();
7141 if (cqm == NULL)
7142 return -1;
7143
7144 NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_THOLD, threshold);
7145 NLA_PUT_U32(cqm, NL80211_ATTR_CQM_RSSI_HYST, hysteresis);
7146 nla_put_nested(msg, NL80211_ATTR_CQM, cqm);
7147
7148 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
7149 return 0;
7150 msg = NULL;
7151
7152nla_put_failure:
7153 if (cqm)
7154 nlmsg_free(cqm);
7155 nlmsg_free(msg);
7156 return -1;
7157}
7158
7159
1c5c7273
PS		 7160static int nl80211_signal_poll(void *priv, struct wpa_signal_info *si)
7161{
7162 struct i802_bss *bss = priv;
7163 struct wpa_driver_nl80211_data *drv = bss->drv;
7164 int res;
7165
7166 os_memset(si, 0, sizeof(*si));
7167 res = nl80211_get_link_signal(drv, si);
7168 if (res != 0)
7169 return res;
7170
7171 return nl80211_get_link_noise(drv, si);
7172}
7173
7174
b91ab76e
JM		 7175static int nl80211_send_frame(void *priv, const u8 *data, size_t data_len,
7176 int encrypt)
7177{
7178 struct i802_bss *bss = priv;
7179 struct wpa_driver_nl80211_data *drv = bss->drv;
7180 return wpa_driver_nl80211_send_frame(drv, data, data_len, encrypt);
7181}
7182
7183
c55f774d
JM		 7184static int nl80211_set_param(void *priv, const char *param)
7185{
c55f774d
JM		 7186 wpa_printf(MSG_DEBUG, "nl80211: driver param='%s'", param);
7187 if (param == NULL)
7188 return 0;
7189
7190#ifdef CONFIG_P2P
7191 if (os_strstr(param, "use_p2p_group_interface=1")) {
482856c8
JM		 7192 struct i802_bss *bss = priv;
7193 struct wpa_driver_nl80211_data *drv = bss->drv;
7194
c55f774d
JM		 7195 wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
7196 "interface");
7197 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
7198 drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
7199 }
7200#endif /* CONFIG_P2P */
7201
7202 return 0;
7203}
7204
7205
f2ed8023
JM		 7206static void * nl80211_global_init(void)
7207{
7208 struct nl80211_global *global;
7209 global = os_zalloc(sizeof(*global));
7210 if (global == NULL)
7211 return NULL;
7212 dl_list_init(&global->interfaces);
ff6a158b 7213 global->if_add_ifindex = -1;
f2ed8023
JM		 7214 return global;
7215}
7216
7217
7218static void nl80211_global_deinit(void *priv)
7219{
7220 struct nl80211_global *global = priv;
7221 if (global == NULL)
7222 return;
7223 if (!dl_list_empty(&global->interfaces)) {
7224 wpa_printf(MSG_ERROR, "nl80211: %u interface(s) remain at "
7225 "nl80211_global_deinit",
7226 dl_list_len(&global->interfaces));
7227 }
7228 os_free(global);
7229}
7230
7231
6859f1cb
BG		 7232static const char * nl80211_get_radio_name(void *priv)
7233{
7234 struct i802_bss *bss = priv;
7235 struct wpa_driver_nl80211_data *drv = bss->drv;
7236 return drv->phyname;
7237}
7238
7239
a6efc65d
JM		 7240static int nl80211_pmkid(struct i802_bss *bss, int cmd, const u8 *bssid,
7241 const u8 *pmkid)
7242{
7243 struct nl_msg *msg;
7244
7245 msg = nlmsg_alloc();
7246 if (!msg)
7247 return -ENOMEM;
7248
7249 genlmsg_put(msg, 0, 0, genl_family_get_id(bss->drv->nl80211), 0, 0,
7250 cmd, 0);
7251
7252 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
7253 if (pmkid)
7254 NLA_PUT(msg, NL80211_ATTR_PMKID, 16, pmkid);
7255 if (bssid)
7256 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7257
7258 return send_and_recv_msgs(bss->drv, msg, NULL, NULL);
7259 nla_put_failure:
7260 return -ENOBUFS;
7261}
7262
7263
7264static int nl80211_add_pmkid(void *priv, const u8 *bssid, const u8 *pmkid)
7265{
7266 struct i802_bss *bss = priv;
7267 wpa_printf(MSG_DEBUG, "nl80211: Add PMKID for " MACSTR, MAC2STR(bssid));
7268 return nl80211_pmkid(bss, NL80211_CMD_SET_PMKSA, bssid, pmkid);
7269}
7270
7271
7272static int nl80211_remove_pmkid(void *priv, const u8 *bssid, const u8 *pmkid)
7273{
7274 struct i802_bss *bss = priv;
7275 wpa_printf(MSG_DEBUG, "nl80211: Delete PMKID for " MACSTR,
7276 MAC2STR(bssid));
7277 return nl80211_pmkid(bss, NL80211_CMD_DEL_PMKSA, bssid, pmkid);
7278}
7279
7280
7281static int nl80211_flush_pmkid(void *priv)
7282{
7283 struct i802_bss *bss = priv;
7284 wpa_printf(MSG_DEBUG, "nl80211: Flush PMKIDs");
7285 return nl80211_pmkid(bss, NL80211_CMD_FLUSH_PMKSA, NULL, NULL);
7286}
7287
7288
b14a210c
JB		 7289static void nl80211_set_rekey_info(void *priv, const u8 *kek, const u8 *kck,
7290 const u8 *replay_ctr)
7291{
7292 struct i802_bss *bss = priv;
7293 struct wpa_driver_nl80211_data *drv = bss->drv;
7294 struct nlattr *replay_nested;
7295 struct nl_msg *msg;
7296
7297 msg = nlmsg_alloc();
7298 if (!msg)
7299 return;
7300
7301 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
7302 NL80211_CMD_SET_REKEY_OFFLOAD, 0);
7303
7304 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, bss->ifindex);
7305
7306 replay_nested = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
7307 if (!replay_nested)
7308 goto nla_put_failure;
7309
7310 NLA_PUT(msg, NL80211_REKEY_DATA_KEK, NL80211_KEK_LEN, kek);
7311 NLA_PUT(msg, NL80211_REKEY_DATA_KCK, NL80211_KCK_LEN, kck);
7312 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR, NL80211_REPLAY_CTR_LEN,
7313 replay_ctr);
7314
7315 nla_nest_end(msg, replay_nested);
7316
7317 send_and_recv_msgs(drv, msg, NULL, NULL);
7318 return;
7319 nla_put_failure:
7320 nlmsg_free(msg);
7321}
7322
7323
bcf24348
JB		 7324static void nl80211_poll_client(void *priv, const u8 *own_addr, const u8 *addr,
7325 int qos)
7326{
7327 struct i802_bss *bss = priv;
7328 struct {
7329 struct ieee80211_hdr hdr;
7330 u16 qos_ctl;
7331 } STRUCT_PACKED nulldata;
7332 size_t size;
7333
7334 /* Send data frame to poll STA and check whether this frame is ACKed */
7335
7336 os_memset(&nulldata, 0, sizeof(nulldata));
7337
7338 if (qos) {
7339 nulldata.hdr.frame_control =
7340 IEEE80211_FC(WLAN_FC_TYPE_DATA,
7341 WLAN_FC_STYPE_QOS_NULL);
7342 size = sizeof(nulldata);
7343 } else {
7344 nulldata.hdr.frame_control =
7345 IEEE80211_FC(WLAN_FC_TYPE_DATA,
7346 WLAN_FC_STYPE_NULLFUNC);
7347 size = sizeof(struct ieee80211_hdr);
7348 }
7349
7350 nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS);
7351 os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, addr, ETH_ALEN);
7352 os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
7353 os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
7354
7355 if (wpa_driver_nl80211_send_mlme(bss, (u8 *) &nulldata, size) < 0)
7356 wpa_printf(MSG_DEBUG, "nl80211_send_null_frame: Failed to "
7357 "send poll frame");
7358}
7359
7360
3f5285e8
JM		 7361const struct wpa_driver_ops wpa_driver_nl80211_ops = {
7362 .name = "nl80211",
7363 .desc = "Linux nl80211/cfg80211",
7364 .get_bssid = wpa_driver_nl80211_get_bssid,
7365 .get_ssid = wpa_driver_nl80211_get_ssid,
3f5285e8 7366 .set_key = wpa_driver_nl80211_set_key,
6a1063e0 7367 .scan2 = wpa_driver_nl80211_scan,
d21c63b9
LC		 7368 .sched_scan = wpa_driver_nl80211_sched_scan,
7369 .stop_sched_scan = wpa_driver_nl80211_stop_sched_scan,
3f5285e8
JM		 7370 .get_scan_results2 = wpa_driver_nl80211_get_scan_results,
7371 .deauthenticate = wpa_driver_nl80211_deauthenticate,
7372 .disassociate = wpa_driver_nl80211_disassociate,
c2a04078 7373 .authenticate = wpa_driver_nl80211_authenticate,
3f5285e8 7374 .associate = wpa_driver_nl80211_associate,
f2ed8023
JM		 7375 .global_init = nl80211_global_init,
7376 .global_deinit = nl80211_global_deinit,
7377 .init2 = wpa_driver_nl80211_init,
3f5285e8 7378 .deinit = wpa_driver_nl80211_deinit,
3f5285e8
JM		 7379 .get_capa = wpa_driver_nl80211_get_capa,
7380 .set_operstate = wpa_driver_nl80211_set_operstate,
01652550 7381 .set_supp_port = wpa_driver_nl80211_set_supp_port,
6d158490 7382 .set_country = wpa_driver_nl80211_set_country,
19c3b566 7383 .set_ap = wpa_driver_nl80211_set_ap,
22a7c9d7
JM		 7384 .if_add = wpa_driver_nl80211_if_add,
7385 .if_remove = wpa_driver_nl80211_if_remove,
071f8ac4 7386 .send_mlme = wpa_driver_nl80211_send_mlme,
c3965310 7387 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data,
0f4e8b4f
JM		 7388 .sta_add = wpa_driver_nl80211_sta_add,
7389 .sta_remove = wpa_driver_nl80211_sta_remove,
db149ac9 7390 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol,
a8d6ffa4 7391 .sta_set_flags = wpa_driver_nl80211_sta_set_flags,
c5121837
JM		 7392#ifdef HOSTAPD
7393 .hapd_init = i802_init,
c5121837 7394 .hapd_deinit = i802_deinit,
f7b3920c
JM		 7395 .set_wds_sta = i802_set_wds_sta,
7396#endif /* HOSTAPD */
7397#if defined(HOSTAPD) || defined(CONFIG_AP)
c5121837
JM		 7398 .get_seqnum = i802_get_seqnum,
7399 .flush = i802_flush,
7400 .read_sta_data = i802_read_sta_data,
c5121837
JM		 7401 .get_inact_sec = i802_get_inact_sec,
7402 .sta_clear_stats = i802_sta_clear_stats,
c5121837
JM		 7403 .set_rts = i802_set_rts,
7404 .set_frag = i802_set_frag,
c5121837 7405 .set_tx_queue_params = i802_set_tx_queue_params,
c5121837 7406 .set_sta_vlan = i802_set_sta_vlan,
257da773 7407 .set_rate_sets = i802_set_rate_sets,
ee7ab173
JB		 7408 .sta_deauth = i802_sta_deauth,
7409 .sta_disassoc = i802_sta_disassoc,
7410#endif /* HOSTAPD || CONFIG_AP */
e3802622 7411 .set_freq = i802_set_freq,
58f6fbe0 7412 .send_action = wpa_driver_nl80211_send_action,
5dfca53f 7413 .send_action_cancel_wait = wpa_driver_nl80211_send_action_cancel_wait,
55777702
JM		 7414 .remain_on_channel = wpa_driver_nl80211_remain_on_channel,
7415 .cancel_remain_on_channel =
7416 wpa_driver_nl80211_cancel_remain_on_channel,
504e905c 7417 .probe_req_report = wpa_driver_nl80211_probe_req_report,
4e5cb1a3 7418 .disable_11b_rates = wpa_driver_nl80211_disable_11b_rates,
af473088 7419 .deinit_ap = wpa_driver_nl80211_deinit_ap,
207ef3fb 7420 .resume = wpa_driver_nl80211_resume,
7b90c16a 7421 .send_ft_action = nl80211_send_ft_action,
b625473c 7422 .signal_monitor = nl80211_signal_monitor,
1c5c7273 7423 .signal_poll = nl80211_signal_poll,
b91ab76e 7424 .send_frame = nl80211_send_frame,
c55f774d 7425 .set_param = nl80211_set_param,
6859f1cb 7426 .get_radio_name = nl80211_get_radio_name,
a6efc65d
JM		 7427 .add_pmkid = nl80211_add_pmkid,
7428 .remove_pmkid = nl80211_remove_pmkid,
7429 .flush_pmkid = nl80211_flush_pmkid,
b14a210c 7430 .set_rekey_info = nl80211_set_rekey_info,
bcf24348 7431 .poll_client = nl80211_poll_client,
3f5285e8 7432};
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