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dbus: switch dbus APIs initialization order
[thirdparty/hostap.git] / src / drivers / driver_nl80211.c
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3f5285e8 1/*
c5121837 2 * Driver interaction with Linux nl80211/cfg80211
072ad14c
JM		 3 * Copyright (c) 2002-2008, Jouni Malinen <j@w1.fi>
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>
7 * Copyright (c) 2009, 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>
21#include <net/if_arp.h>
37b7d082 22#include <net/if.h>
3f5285e8
JM		 23#include <netlink/genl/genl.h>
24#include <netlink/genl/family.h>
25#include <netlink/genl/ctrl.h>
7e45830a 26#include "nl80211_copy.h"
625f587b 27
3f5285e8
JM		 28#include "common.h"
29#include "driver.h"
30#include "eloop.h"
90973fb2 31#include "common/ieee802_11_defs.h"
3f5285e8 32
c5121837 33#if defined(CONFIG_AP) || defined(HOSTAPD)
0915d02c
JM		 34#include <netpacket/packet.h>
35#include <linux/filter.h>
36#include "radiotap.h"
37#include "radiotap_iter.h"
c5121837 38
a8d6ffa4 39#include "../../hostapd/sta_flags.h"
4b9841d3 40#endif /* CONFIG_AP || HOSTAPD */
0915d02c 41
c5121837
JM		 42#ifdef CONFIG_LIBNL20
43/* libnl 2.0 compatibility code */
2e8eac2d 44#define nl_handle nl_sock
c5121837
JM		 45#define nl_handle_alloc_cb nl_socket_alloc_cb
46#define nl_handle_destroy nl_socket_free
47#endif /* CONFIG_LIBNL20 */
48
c5121837 49
3f5285e8
JM		 50#ifndef IFF_LOWER_UP
51#define IFF_LOWER_UP 0x10000 /* driver signals L1 up */
52#endif
53#ifndef IFF_DORMANT
54#define IFF_DORMANT 0x20000 /* driver signals dormant */
55#endif
56
57#ifndef IF_OPER_DORMANT
58#define IF_OPER_DORMANT 5
59#endif
60#ifndef IF_OPER_UP
61#define IF_OPER_UP 6
62#endif
63
c5121837
JM		 64struct i802_bss {
65 struct i802_bss *next;
b4fd6fab 66 int ifindex;
c5121837
JM		 67 unsigned int beacon_set:1;
68};
3f5285e8
JM		 69
70struct wpa_driver_nl80211_data {
71 void *ctx;
d8816397 72 int link_event_sock;
c5121837 73 int ioctl_sock; /* socket for ioctl() use */
3f5285e8
JM		 74 char ifname[IFNAMSIZ + 1];
75 int ifindex;
7524cfb1 76 int if_removed;
c2a04078
JM		 77 struct wpa_driver_capa capa;
78 int has_capability;
c2a04078 79
3f5285e8
JM		 80 int operstate;
81
3f5285e8
JM		 82 int scan_complete_events;
83
84 struct nl_handle *nl_handle;
335ce76b 85 struct nl_handle *nl_handle_event;
3f5285e8 86 struct nl_cache *nl_cache;
335ce76b 87 struct nl_cache *nl_cache_event;
3f5285e8
JM		 88 struct nl_cb *nl_cb;
89 struct genl_family *nl80211;
1c873584 90
e6b8efeb 91 u8 auth_bssid[ETH_ALEN];
c2a04078
JM		 92 u8 bssid[ETH_ALEN];
93 int associated;
fd05d64e
JM		 94 u8 ssid[32];
95 size_t ssid_len;
ad1e68e6
JM		 96 int nlmode;
97 int ap_scan_as_station;
d2440ba0 98
0915d02c
JM		 99 int monitor_sock;
100 int monitor_ifidx;
7da3abe7 101
7da3abe7 102 unsigned int beacon_set:1;
c5121837
JM		 103
104#ifdef HOSTAPD
c5121837 105 int eapol_sock; /* socket for EAPOL frames */
c5121837
JM		 106
107 int default_if_indices[16];
108 int *if_indices;
109 int num_if_indices;
110
c5121837 111 struct i802_bss bss;
c5121837
JM		 112
113 int last_freq;
114 int last_freq_ht;
c5121837 115#endif /* HOSTAPD */
3f5285e8
JM		 116};
117
118
119static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx,
120 void *timeout_ctx);
ad1e68e6 121static int wpa_driver_nl80211_set_mode(void *priv, int mode);
362f781e 122static int
7524cfb1 123wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv);
d72aad94
JM		 124static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
125 const u8 *addr, int cmd, u16 reason_code);
7524cfb1 126
460456f8
JM		 127#if defined(CONFIG_AP) || defined(HOSTAPD)
128static void nl80211_remove_monitor_interface(
129 struct wpa_driver_nl80211_data *drv);
130#endif /* CONFIG_AP || HOSTAPD */
131
0915d02c
JM		 132#ifdef CONFIG_AP
133static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
134 int ifidx);
135#endif /* CONFIG_AP */
136
072ad14c 137#ifdef HOSTAPD
2135f224
JM		 138static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
139static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
b4fd6fab
JM		 140static struct i802_bss * get_bss(struct wpa_driver_nl80211_data *drv,
141 int ifindex);
bbaf0837
JM		 142static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
143 int ifidx);
144static int i802_set_freq(void *priv, struct hostapd_freq_params *freq);
072ad14c
JM		 145#endif /* HOSTAPD */
146
3f5285e8 147
6241fcb1
JM		 148/* nl80211 code */
149static int ack_handler(struct nl_msg *msg, void *arg)
150{
151 int *err = arg;
152 *err = 0;
153 return NL_STOP;
154}
155
156static int finish_handler(struct nl_msg *msg, void *arg)
157{
8e8df255
JM		 158 int *ret = arg;
159 *ret = 0;
6241fcb1
JM		 160 return NL_SKIP;
161}
162
163static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err,
164 void *arg)
165{
166 int *ret = arg;
167 *ret = err->error;
168 return NL_SKIP;
169}
170
5b7b85f6
JM		 171
172static int no_seq_check(struct nl_msg *msg, void *arg)
173{
174 return NL_OK;
175}
176
177
6241fcb1
JM		 178static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv,
179 struct nl_msg *msg,
180 int (*valid_handler)(struct nl_msg *, void *),
181 void *valid_data)
182{
183 struct nl_cb *cb;
184 int err = -ENOMEM;
185
186 cb = nl_cb_clone(drv->nl_cb);
187 if (!cb)
188 goto out;
189
190 err = nl_send_auto_complete(drv->nl_handle, msg);
191 if (err < 0)
192 goto out;
193
194 err = 1;
195
196 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
8e8df255 197 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
6241fcb1
JM		 198 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
199
200 if (valid_handler)
201 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM,
202 valid_handler, valid_data);
203
204 while (err > 0)
205 nl_recvmsgs(drv->nl_handle, cb);
206 out:
207 nl_cb_put(cb);
208 nlmsg_free(msg);
209 return err;
210}
211
212
97865538
JM		 213struct family_data {
214 const char *group;
215 int id;
216};
217
218
219static int family_handler(struct nl_msg *msg, void *arg)
220{
221 struct family_data *res = arg;
222 struct nlattr *tb[CTRL_ATTR_MAX + 1];
223 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
224 struct nlattr *mcgrp;
225 int i;
226
227 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
228 genlmsg_attrlen(gnlh, 0), NULL);
229 if (!tb[CTRL_ATTR_MCAST_GROUPS])
230 return NL_SKIP;
231
232 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) {
233 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1];
234 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp),
235 nla_len(mcgrp), NULL);
236 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] ||
237 !tb2[CTRL_ATTR_MCAST_GRP_ID] ||
238 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]),
239 res->group,
240 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0)
241 continue;
242 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]);
243 break;
244 };
245
246 return NL_SKIP;
247}
248
249
250static int nl_get_multicast_id(struct wpa_driver_nl80211_data *drv,
251 const char *family, const char *group)
252{
253 struct nl_msg *msg;
254 int ret = -1;
255 struct family_data res = { group, -ENOENT };
256
257 msg = nlmsg_alloc();
258 if (!msg)
259 return -ENOMEM;
260 genlmsg_put(msg, 0, 0, genl_ctrl_resolve(drv->nl_handle, "nlctrl"),
261 0, 0, CTRL_CMD_GETFAMILY, 0);
262 NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family);
263
264 ret = send_and_recv_msgs(drv, msg, family_handler, &res);
265 msg = NULL;
266 if (ret == 0)
267 ret = res.id;
268
269nla_put_failure:
270 nlmsg_free(msg);
271 return ret;
272}
273
274
41d931ee
JM		 275#ifdef HOSTAPD
276static int get_ifhwaddr(struct wpa_driver_nl80211_data *drv,
277 const char *ifname, u8 *addr)
278{
279 struct ifreq ifr;
280
281 os_memset(&ifr, 0, sizeof(ifr));
282 os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
283 if (ioctl(drv->ioctl_sock, SIOCGIFHWADDR, &ifr)) {
284 wpa_printf(MSG_ERROR, "%s: ioctl(SIOCGIFHWADDR): %d (%s)",
285 ifname, errno, strerror(errno));
286 return -1;
287 }
288
289 if (ifr.ifr_hwaddr.sa_family != ARPHRD_ETHER) {
290 wpa_printf(MSG_ERROR, "%s: Invalid HW-addr family 0x%04x",
291 ifname, ifr.ifr_hwaddr.sa_family);
292 return -1;
293 }
294 os_memcpy(addr, ifr.ifr_hwaddr.sa_data, ETH_ALEN);
295
296 return 0;
297}
298
299
300static int set_ifhwaddr(struct wpa_driver_nl80211_data *drv,
301 const char *ifname, const u8 *addr)
302{
303 struct ifreq ifr;
304
305 os_memset(&ifr, 0, sizeof(ifr));
306 os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
307 os_memcpy(ifr.ifr_hwaddr.sa_data, addr, ETH_ALEN);
308 ifr.ifr_hwaddr.sa_family = ARPHRD_ETHER;
309
310 if (ioctl(drv->ioctl_sock, SIOCSIFHWADDR, &ifr)) {
311 wpa_printf(MSG_DEBUG, "%s: ioctl(SIOCSIFHWADDR): %d (%s)",
312 ifname, errno, strerror(errno));
313 return -1;
314 }
315
316 return 0;
317}
318#endif /* HOSTAPD */
319
320
3f5285e8
JM		 321static int wpa_driver_nl80211_send_oper_ifla(
322 struct wpa_driver_nl80211_data *drv,
323 int linkmode, int operstate)
324{
325 struct {
326 struct nlmsghdr hdr;
327 struct ifinfomsg ifinfo;
328 char opts[16];
329 } req;
330 struct rtattr *rta;
331 static int nl_seq;
332 ssize_t ret;
333
334 os_memset(&req, 0, sizeof(req));
335
336 req.hdr.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
337 req.hdr.nlmsg_type = RTM_SETLINK;
338 req.hdr.nlmsg_flags = NLM_F_REQUEST;
339 req.hdr.nlmsg_seq = ++nl_seq;
340 req.hdr.nlmsg_pid = 0;
341
342 req.ifinfo.ifi_family = AF_UNSPEC;
343 req.ifinfo.ifi_type = 0;
344 req.ifinfo.ifi_index = drv->ifindex;
345 req.ifinfo.ifi_flags = 0;
346 req.ifinfo.ifi_change = 0;
347
348 if (linkmode != -1) {
0ae7b086
JM		 349 rta = aliasing_hide_typecast(
350 ((char *) &req + NLMSG_ALIGN(req.hdr.nlmsg_len)),
351 struct rtattr);
3f5285e8
JM		 352 rta->rta_type = IFLA_LINKMODE;
353 rta->rta_len = RTA_LENGTH(sizeof(char));
354 *((char *) RTA_DATA(rta)) = linkmode;
355 req.hdr.nlmsg_len = NLMSG_ALIGN(req.hdr.nlmsg_len) +
356 RTA_LENGTH(sizeof(char));
357 }
358 if (operstate != -1) {
c1bb3e0a
JM		 359 rta = aliasing_hide_typecast(
360 ((char *) &req + NLMSG_ALIGN(req.hdr.nlmsg_len)),
361 struct rtattr);
3f5285e8
JM		 362 rta->rta_type = IFLA_OPERSTATE;
363 rta->rta_len = RTA_LENGTH(sizeof(char));
364 *((char *) RTA_DATA(rta)) = operstate;
365 req.hdr.nlmsg_len = NLMSG_ALIGN(req.hdr.nlmsg_len) +
366 RTA_LENGTH(sizeof(char));
367 }
368
7da3abe7 369 wpa_printf(MSG_DEBUG, "nl80211: Operstate: linkmode=%d, operstate=%d",
3f5285e8
JM		 370 linkmode, operstate);
371
d8816397 372 ret = send(drv->link_event_sock, &req, req.hdr.nlmsg_len, 0);
3f5285e8 373 if (ret < 0) {
7da3abe7
JM		 374 wpa_printf(MSG_DEBUG, "nl80211: Sending operstate IFLA failed:"
375 " %s (assume operstate is not supported)",
3f5285e8
JM		 376 strerror(errno));
377 }
378
379 return ret < 0 ? -1 : 0;
380}
381
382
3f5285e8
JM		 383static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid)
384{
385 struct wpa_driver_nl80211_data *drv = priv;
c2a04078
JM		 386 if (!drv->associated)
387 return -1;
388 os_memcpy(bssid, drv->bssid, ETH_ALEN);
389 return 0;
3f5285e8
JM		 390}
391
392
3f5285e8
JM		 393static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid)
394{
395 struct wpa_driver_nl80211_data *drv = priv;
fd05d64e
JM		 396 if (!drv->associated)
397 return -1;
398 os_memcpy(ssid, drv->ssid, drv->ssid_len);
399 return drv->ssid_len;
3f5285e8
JM		 400}
401
402
c1bb3e0a
JM		 403#ifndef HOSTAPD
404
7524cfb1
JM		 405static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv,
406 void *ctx, char *buf, size_t len,
407 int del)
3f5285e8
JM		 408{
409 union wpa_event_data event;
410
411 os_memset(&event, 0, sizeof(event));
412 if (len > sizeof(event.interface_status.ifname))
413 len = sizeof(event.interface_status.ifname) - 1;
414 os_memcpy(event.interface_status.ifname, buf, len);
415 event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED :
416 EVENT_INTERFACE_ADDED;
417
418 wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s",
419 del ? "DEL" : "NEW",
420 event.interface_status.ifname,
421 del ? "removed" : "added");
422
7524cfb1
JM		 423 if (os_strcmp(drv->ifname, event.interface_status.ifname) == 0) {
424 if (del)
425 drv->if_removed = 1;
426 else
427 drv->if_removed = 0;
428 }
429
3f5285e8
JM		 430 wpa_supplicant_event(ctx, EVENT_INTERFACE_STATUS, &event);
431}
432
433
7524cfb1
JM		 434static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv,
435 struct nlmsghdr *h)
436{
437 struct ifinfomsg *ifi;
438 int attrlen, _nlmsg_len, rta_len;
439 struct rtattr *attr;
440
441 ifi = NLMSG_DATA(h);
442
443 _nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
444
445 attrlen = h->nlmsg_len - _nlmsg_len;
446 if (attrlen < 0)
447 return 0;
448
449 attr = (struct rtattr *) (((char *) ifi) + _nlmsg_len);
450
451 rta_len = RTA_ALIGN(sizeof(struct rtattr));
452 while (RTA_OK(attr, attrlen)) {
453 if (attr->rta_type == IFLA_IFNAME) {
454 if (os_strcmp(((char *) attr) + rta_len, drv->ifname)
455 == 0)
456 return 1;
457 else
458 break;
459 }
460 attr = RTA_NEXT(attr, attrlen);
461 }
462
463 return 0;
464}
465
466
467static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv,
468 int ifindex, struct nlmsghdr *h)
469{
470 if (drv->ifindex == ifindex)
471 return 1;
472
473 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, h)) {
474 drv->ifindex = if_nametoindex(drv->ifname);
475 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed "
476 "interface");
477 wpa_driver_nl80211_finish_drv_init(drv);
478 return 1;
479 }
480
481 return 0;
482}
483
484
3f5285e8
JM		 485static void wpa_driver_nl80211_event_rtm_newlink(struct wpa_driver_nl80211_data *drv,
486 void *ctx, struct nlmsghdr *h,
487 size_t len)
488{
489 struct ifinfomsg *ifi;
490 int attrlen, _nlmsg_len, rta_len;
491 struct rtattr * attr;
492
493 if (len < sizeof(*ifi))
494 return;
495
496 ifi = NLMSG_DATA(h);
497
7524cfb1 498 if (!wpa_driver_nl80211_own_ifindex(drv, ifi->ifi_index, h)) {
3f5285e8
JM		 499 wpa_printf(MSG_DEBUG, "Ignore event for foreign ifindex %d",
500 ifi->ifi_index);
501 return;
502 }
503
504 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x "
505 "(%s%s%s%s)",
506 drv->operstate, ifi->ifi_flags,
507 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "",
508 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "",
509 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "",
510 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : "");
511 /*
512 * Some drivers send the association event before the operup event--in
513 * this case, lifting operstate in wpa_driver_nl80211_set_operstate()
514 * fails. This will hit us when wpa_supplicant does not need to do
515 * IEEE 802.1X authentication
516 */
517 if (drv->operstate == 1 &&
518 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP &&
519 !(ifi->ifi_flags & IFF_RUNNING))
520 wpa_driver_nl80211_send_oper_ifla(drv, -1, IF_OPER_UP);
521
522 _nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
523
524 attrlen = h->nlmsg_len - _nlmsg_len;
525 if (attrlen < 0)
526 return;
527
528 attr = (struct rtattr *) (((char *) ifi) + _nlmsg_len);
529
530 rta_len = RTA_ALIGN(sizeof(struct rtattr));
531 while (RTA_OK(attr, attrlen)) {
d8816397 532 if (attr->rta_type == IFLA_IFNAME) {
7524cfb1
JM		 533 wpa_driver_nl80211_event_link(
534 drv, ctx,
535 ((char *) attr) + rta_len,
536 attr->rta_len - rta_len, 0);
3f5285e8
JM		 537 }
538 attr = RTA_NEXT(attr, attrlen);
539 }
540}
541
542
543static void wpa_driver_nl80211_event_rtm_dellink(struct wpa_driver_nl80211_data *drv,
544 void *ctx, struct nlmsghdr *h,
545 size_t len)
546{
547 struct ifinfomsg *ifi;
548 int attrlen, _nlmsg_len, rta_len;
549 struct rtattr * attr;
550
551 if (len < sizeof(*ifi))
552 return;
553
554 ifi = NLMSG_DATA(h);
555
556 _nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
557
558 attrlen = h->nlmsg_len - _nlmsg_len;
559 if (attrlen < 0)
560 return;
561
562 attr = (struct rtattr *) (((char *) ifi) + _nlmsg_len);
563
564 rta_len = RTA_ALIGN(sizeof(struct rtattr));
565 while (RTA_OK(attr, attrlen)) {
566 if (attr->rta_type == IFLA_IFNAME) {
7524cfb1
JM		 567 wpa_driver_nl80211_event_link(
568 drv, ctx,
569 ((char *) attr) + rta_len,
570 attr->rta_len - rta_len, 1);
3f5285e8
JM		 571 }
572 attr = RTA_NEXT(attr, attrlen);
573 }
574}
575
576
d8816397 577static void wpa_driver_nl80211_event_receive_link(int sock, void *eloop_ctx,
97865538 578 void *sock_ctx)
3f5285e8
JM		 579{
580 char buf[8192];
581 int left;
582 struct sockaddr_nl from;
583 socklen_t fromlen;
584 struct nlmsghdr *h;
585 int max_events = 10;
586
587try_again:
588 fromlen = sizeof(from);
589 left = recvfrom(sock, buf, sizeof(buf), MSG_DONTWAIT,
590 (struct sockaddr *) &from, &fromlen);
591 if (left < 0) {
592 if (errno != EINTR && errno != EAGAIN)
593 perror("recvfrom(netlink)");
594 return;
595 }
596
597 h = (struct nlmsghdr *) buf;
598 while (left >= (int) sizeof(*h)) {
599 int len, plen;
600
601 len = h->nlmsg_len;
602 plen = len - sizeof(*h);
603 if (len > left || plen < 0) {
604 wpa_printf(MSG_DEBUG, "Malformed netlink message: "
605 "len=%d left=%d plen=%d",
606 len, left, plen);
607 break;
608 }
609
610 switch (h->nlmsg_type) {
611 case RTM_NEWLINK:
612 wpa_driver_nl80211_event_rtm_newlink(eloop_ctx, sock_ctx,
613 h, plen);
614 break;
615 case RTM_DELLINK:
616 wpa_driver_nl80211_event_rtm_dellink(eloop_ctx, sock_ctx,
617 h, plen);
618 break;
619 }
620
621 len = NLMSG_ALIGN(len);
622 left -= len;
623 h = (struct nlmsghdr *) ((char *) h + len);
624 }
625
626 if (left > 0) {
627 wpa_printf(MSG_DEBUG, "%d extra bytes in the end of netlink "
628 "message", left);
629 }
630
631 if (--max_events > 0) {
632 /*
633 * Try to receive all events in one eloop call in order to
634 * limit race condition on cases where AssocInfo event, Assoc
635 * event, and EAPOL frames are received more or less at the
636 * same time. We want to process the event messages first
637 * before starting EAPOL processing.
638 */
639 goto try_again;
640 }
641}
642
c1bb3e0a
JM		 643#endif /* HOSTAPD */
644
3f5285e8 645
c2a04078
JM		 646static void mlme_event_auth(struct wpa_driver_nl80211_data *drv,
647 const u8 *frame, size_t len)
648{
649 const struct ieee80211_mgmt *mgmt;
650 union wpa_event_data event;
651
652 mgmt = (const struct ieee80211_mgmt *) frame;
653 if (len < 24 + sizeof(mgmt->u.auth)) {
654 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
655 "frame");
656 return;
657 }
658
e6b8efeb 659 os_memcpy(drv->auth_bssid, mgmt->sa, ETH_ALEN);
c2a04078
JM		 660 os_memset(&event, 0, sizeof(event));
661 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN);
662 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg);
663 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code);
664 if (len > 24 + sizeof(mgmt->u.auth)) {
665 event.auth.ies = mgmt->u.auth.variable;
666 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth);
667 }
668
669 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event);
670}
671
672
673static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv,
674 const u8 *frame, size_t len)
675{
676 const struct ieee80211_mgmt *mgmt;
677 union wpa_event_data event;
678 u16 status;
679
680 mgmt = (const struct ieee80211_mgmt *) frame;
681 if (len < 24 + sizeof(mgmt->u.assoc_resp)) {
682 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
683 "frame");
684 return;
685 }
686
687 status = le_to_host16(mgmt->u.assoc_resp.status_code);
688 if (status != WLAN_STATUS_SUCCESS) {
efa46078
JM		 689 os_memset(&event, 0, sizeof(event));
690 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
691 event.assoc_reject.resp_ies =
692 (u8 *) mgmt->u.assoc_resp.variable;
693 event.assoc_reject.resp_ies_len =
694 len - 24 - sizeof(mgmt->u.assoc_resp);
695 }
696 event.assoc_reject.status_code = status;
697
698 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
c2a04078
JM		 699 return;
700 }
701
702 drv->associated = 1;
703 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN);
704
705 os_memset(&event, 0, sizeof(event));
706 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
707 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable;
708 event.assoc_info.resp_ies_len =
efa46078 709 len - 24 - sizeof(mgmt->u.assoc_resp);
c2a04078
JM		 710 }
711
712 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
713}
714
c1bb3e0a 715
da72a1c1
ZY		 716static void mlme_event_connect(struct wpa_driver_nl80211_data *drv,
717 enum nl80211_commands cmd, struct nlattr *status,
718 struct nlattr *addr, struct nlattr *req_ie,
719 struct nlattr *resp_ie)
720{
721 union wpa_event_data event;
722
7da2c527
JM		 723 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
724 /*
725 * Avoid reporting two association events that would confuse
726 * the core code.
727 */
728 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) "
729 "when using userspace SME", cmd);
730 return;
731 }
732
da72a1c1
ZY		 733 os_memset(&event, 0, sizeof(event));
734 if (cmd == NL80211_CMD_CONNECT &&
735 nla_get_u16(status) != WLAN_STATUS_SUCCESS) {
736 if (resp_ie) {
737 event.assoc_reject.resp_ies = nla_data(resp_ie);
738 event.assoc_reject.resp_ies_len = nla_len(resp_ie);
739 }
740 event.assoc_reject.status_code = nla_get_u16(status);
741 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
742 return;
743 }
744
745 drv->associated = 1;
746 if (addr)
747 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN);
748
749 if (req_ie) {
750 event.assoc_info.req_ies = nla_data(req_ie);
751 event.assoc_info.req_ies_len = nla_len(req_ie);
752 }
753 if (resp_ie) {
754 event.assoc_info.resp_ies = nla_data(resp_ie);
755 event.assoc_info.resp_ies_len = nla_len(resp_ie);
756 }
757
758 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
759}
c2a04078 760
c1bb3e0a 761
da1fb17c
JM		 762static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv,
763 enum nl80211_commands cmd, struct nlattr *addr)
764{
765 union wpa_event_data event;
766 enum wpa_event_type ev;
767
768 if (nla_len(addr) != ETH_ALEN)
769 return;
770
771 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR,
772 cmd, MAC2STR((u8 *) nla_data(addr)));
773
774 if (cmd == NL80211_CMD_AUTHENTICATE)
775 ev = EVENT_AUTH_TIMED_OUT;
776 else if (cmd == NL80211_CMD_ASSOCIATE)
777 ev = EVENT_ASSOC_TIMED_OUT;
778 else
779 return;
780
781 os_memset(&event, 0, sizeof(event));
782 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN);
783 wpa_supplicant_event(drv->ctx, ev, &event);
784}
785
786
c2a04078 787static void mlme_event(struct wpa_driver_nl80211_data *drv,
da1fb17c
JM		 788 enum nl80211_commands cmd, struct nlattr *frame,
789 struct nlattr *addr, struct nlattr *timed_out)
c2a04078 790{
da1fb17c
JM		 791 if (timed_out && addr) {
792 mlme_timeout_event(drv, cmd, addr);
793 return;
794 }
795
c2a04078
JM		 796 if (frame == NULL) {
797 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d without frame "
798 "data", cmd);
799 return;
800 }
801
802 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d", cmd);
803 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame",
804 nla_data(frame), nla_len(frame));
805
806 switch (cmd) {
807 case NL80211_CMD_AUTHENTICATE:
808 mlme_event_auth(drv, nla_data(frame), nla_len(frame));
809 break;
810 case NL80211_CMD_ASSOCIATE:
811 mlme_event_assoc(drv, nla_data(frame), nla_len(frame));
812 break;
813 case NL80211_CMD_DEAUTHENTICATE:
814 drv->associated = 0;
815 wpa_supplicant_event(drv->ctx, EVENT_DEAUTH, NULL);
816 break;
817 case NL80211_CMD_DISASSOCIATE:
818 drv->associated = 0;
819 wpa_supplicant_event(drv->ctx, EVENT_DISASSOC, NULL);
820 break;
821 default:
822 break;
823 }
824}
825
826
35583f3f
JM		 827static void mlme_event_michael_mic_failure(struct wpa_driver_nl80211_data *drv,
828 struct nlattr *tb[])
829{
830 union wpa_event_data data;
831
832 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure");
833 os_memset(&data, 0, sizeof(data));
834 if (tb[NL80211_ATTR_MAC]) {
835 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address",
836 nla_data(tb[NL80211_ATTR_MAC]),
837 nla_len(tb[NL80211_ATTR_MAC]));
ad1e68e6 838 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]);
35583f3f
JM		 839 }
840 if (tb[NL80211_ATTR_KEY_SEQ]) {
841 wpa_hexdump(MSG_DEBUG, "nl80211: TSC",
842 nla_data(tb[NL80211_ATTR_KEY_SEQ]),
843 nla_len(tb[NL80211_ATTR_KEY_SEQ]));
844 }
845 if (tb[NL80211_ATTR_KEY_TYPE]) {
846 enum nl80211_key_type key_type =
847 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]);
848 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type);
849 if (key_type == NL80211_KEYTYPE_PAIRWISE)
850 data.michael_mic_failure.unicast = 1;
851 } else
852 data.michael_mic_failure.unicast = 1;
853
854 if (tb[NL80211_ATTR_KEY_IDX]) {
855 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]);
856 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id);
857 }
858
859 wpa_supplicant_event(drv->ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
860}
861
862
97865538
JM		 863static int process_event(struct nl_msg *msg, void *arg)
864{
865 struct wpa_driver_nl80211_data *drv = arg;
866 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
867 struct nlattr *tb[NL80211_ATTR_MAX + 1];
868
869 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
870 genlmsg_attrlen(gnlh, 0), NULL);
871
872 if (tb[NL80211_ATTR_IFINDEX]) {
873 int ifindex = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
874 if (ifindex != drv->ifindex) {
875 wpa_printf(MSG_DEBUG, "nl80211: Ignored event (cmd=%d)"
876 " for foreign interface (ifindex %d)",
877 gnlh->cmd, ifindex);
878 return NL_SKIP;
879 }
880 }
881
ad1e68e6
JM		 882 if (drv->ap_scan_as_station &&
883 (gnlh->cmd == NL80211_CMD_NEW_SCAN_RESULTS ||
884 gnlh->cmd == NL80211_CMD_SCAN_ABORTED)) {
885 wpa_driver_nl80211_set_mode(drv, IEEE80211_MODE_AP);
886 drv->ap_scan_as_station = 0;
887 }
888
97865538 889 switch (gnlh->cmd) {
d942a79e
JM		 890 case NL80211_CMD_TRIGGER_SCAN:
891 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger");
892 break;
97865538
JM		 893 case NL80211_CMD_NEW_SCAN_RESULTS:
894 wpa_printf(MSG_DEBUG, "nl80211: New scan results available");
895 drv->scan_complete_events = 1;
896 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
897 drv->ctx);
898 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, NULL);
899 break;
900 case NL80211_CMD_SCAN_ABORTED:
901 wpa_printf(MSG_DEBUG, "nl80211: Scan aborted");
902 /*
903 * Need to indicate that scan results are available in order
904 * not to make wpa_supplicant stop its scanning.
905 */
906 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
907 drv->ctx);
908 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, NULL);
909 break;
c2a04078
JM		 910 case NL80211_CMD_AUTHENTICATE:
911 case NL80211_CMD_ASSOCIATE:
912 case NL80211_CMD_DEAUTHENTICATE:
913 case NL80211_CMD_DISASSOCIATE:
da1fb17c
JM		 914 mlme_event(drv, gnlh->cmd, tb[NL80211_ATTR_FRAME],
915 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT]);
c2a04078 916 break;
da72a1c1
ZY		 917 case NL80211_CMD_CONNECT:
918 case NL80211_CMD_ROAM:
919 mlme_event_connect(drv, gnlh->cmd,
920 tb[NL80211_ATTR_STATUS_CODE],
921 tb[NL80211_ATTR_MAC],
922 tb[NL80211_ATTR_REQ_IE],
923 tb[NL80211_ATTR_RESP_IE]);
924 break;
925 case NL80211_CMD_DISCONNECT:
7da2c527
JM		 926 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
927 /*
928 * Avoid reporting two disassociation events that could
929 * confuse the core code.
930 */
931 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect "
932 "event when using userspace SME");
933 break;
934 }
da72a1c1
ZY		 935 drv->associated = 0;
936 wpa_supplicant_event(drv->ctx, EVENT_DISASSOC, NULL);
937 break;
35583f3f
JM		 938 case NL80211_CMD_MICHAEL_MIC_FAILURE:
939 mlme_event_michael_mic_failure(drv, tb);
940 break;
97865538 941 default:
c2a04078
JM		 942 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event "
943 "(cmd=%d)", gnlh->cmd);
97865538
JM		 944 break;
945 }
946
947 return NL_SKIP;
948}
949
950
951static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx,
952 void *sock_ctx)
953{
954 struct nl_cb *cb;
955 struct wpa_driver_nl80211_data *drv = eloop_ctx;
956
957 wpa_printf(MSG_DEBUG, "nl80211: Event message available");
958
959 cb = nl_cb_clone(drv->nl_cb);
960 if (!cb)
961 return;
962 nl_cb_set(cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL);
963 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, process_event, drv);
335ce76b 964 nl_recvmsgs(drv->nl_handle_event, cb);
97865538
JM		 965 nl_cb_put(cb);
966}
967
968
2135f224
JM		 969static int hostapd_set_iface_flags(struct wpa_driver_nl80211_data *drv,
970 const char *ifname, int dev_up)
3f5285e8
JM		 971{
972 struct ifreq ifr;
973
2135f224
JM		 974 if (drv->ioctl_sock < 0)
975 return -1;
976
3f5285e8
JM		 977 os_memset(&ifr, 0, sizeof(ifr));
978 os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
2135f224
JM		 979
980 if (ioctl(drv->ioctl_sock, SIOCGIFFLAGS, &ifr) != 0) {
3f5285e8 981 perror("ioctl[SIOCGIFFLAGS]");
2135f224
JM		 982 wpa_printf(MSG_DEBUG, "Could not read interface flags (%s)",
983 ifname);
3f5285e8
JM		 984 return -1;
985 }
3f5285e8 986
2135f224
JM		 987 if (dev_up) {
988 if (ifr.ifr_flags & IFF_UP)
989 return 0;
990 ifr.ifr_flags |= IFF_UP;
991 } else {
992 if (!(ifr.ifr_flags & IFF_UP))
993 return 0;
994 ifr.ifr_flags &= ~IFF_UP;
995 }
3f5285e8 996
2135f224
JM		 997 if (ioctl(drv->ioctl_sock, SIOCSIFFLAGS, &ifr) != 0) {
998 perror("ioctl[SIOCSIFFLAGS]");
3f5285e8
JM		 999 return -1;
1000 }
3f5285e8 1001
2135f224 1002 return 0;
3f5285e8
JM		 1003}
1004
1005
6d158490
LR		 1006/**
1007 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain
1008 * @priv: driver_nl80211 private data
1009 * @alpha2_arg: country to which to switch to
1010 * Returns: 0 on success, -1 on failure
1011 *
1012 * This asks nl80211 to set the regulatory domain for given
1013 * country ISO / IEC alpha2.
1014 */
1015static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg)
1016{
1017 struct wpa_driver_nl80211_data *drv = priv;
1018 char alpha2[3];
1019 struct nl_msg *msg;
1020
1021 msg = nlmsg_alloc();
1022 if (!msg)
e785c2ba 1023 return -ENOMEM;
6d158490
LR		 1024
1025 alpha2[0] = alpha2_arg[0];
1026 alpha2[1] = alpha2_arg[1];
1027 alpha2[2] = '\0';
1028
1029 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1030 0, NL80211_CMD_REQ_SET_REG, 0);
1031
1032 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2);
1033 if (send_and_recv_msgs(drv, msg, NULL, NULL))
1034 return -EINVAL;
1035 return 0;
1036nla_put_failure:
1037 return -EINVAL;
1038}
1039
1040
bbaf0837 1041#ifndef HOSTAPD
80bc75f1
JM		 1042struct wiphy_info_data {
1043 int max_scan_ssids;
1581b38b 1044 int ap_supported;
93d11400
ZY		 1045 int auth_supported;
1046 int connect_supported;
80bc75f1
JM		 1047};
1048
1049
1050static int wiphy_info_handler(struct nl_msg *msg, void *arg)
1051{
1052 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1053 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1054 struct wiphy_info_data *info = arg;
1055
1056 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1057 genlmsg_attrlen(gnlh, 0), NULL);
1058
1059 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS])
1060 info->max_scan_ssids =
1061 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]);
1062
1581b38b
JM		 1063 if (tb[NL80211_ATTR_SUPPORTED_IFTYPES]) {
1064 struct nlattr *nl_mode;
1065 int i;
1066 nla_for_each_nested(nl_mode,
1067 tb[NL80211_ATTR_SUPPORTED_IFTYPES], i) {
1068 if (nl_mode->nla_type == NL80211_IFTYPE_AP) {
1069 info->ap_supported = 1;
1070 break;
1071 }
1072 }
1073 }
1074
93d11400
ZY		 1075 if (tb[NL80211_ATTR_SUPPORTED_COMMANDS]) {
1076 struct nlattr *nl_cmd;
1077 int i;
1078
1079 nla_for_each_nested(nl_cmd,
1080 tb[NL80211_ATTR_SUPPORTED_COMMANDS], i) {
1081 u32 cmd = nla_get_u32(nl_cmd);
1082 if (cmd == NL80211_CMD_AUTHENTICATE)
1083 info->auth_supported = 1;
1084 else if (cmd == NL80211_CMD_CONNECT)
1085 info->connect_supported = 1;
1086 }
1087 }
1088
80bc75f1
JM		 1089 return NL_SKIP;
1090}
1091
1092
1093static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv,
1094 struct wiphy_info_data *info)
1095{
1096 struct nl_msg *msg;
1097
1098 os_memset(info, 0, sizeof(*info));
1099 msg = nlmsg_alloc();
1100 if (!msg)
1101 return -1;
1102
1103 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1104 0, NL80211_CMD_GET_WIPHY, 0);
1105
1106 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1107
1108 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info) == 0)
1109 return 0;
1110 msg = NULL;
1111nla_put_failure:
1112 nlmsg_free(msg);
1113 return -1;
1114}
1115
1116
93d11400 1117static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
80bc75f1
JM		 1118{
1119 struct wiphy_info_data info;
1120 if (wpa_driver_nl80211_get_info(drv, &info))
93d11400 1121 return -1;
80bc75f1 1122 drv->has_capability = 1;
1b2a72e8
JM		 1123 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */
1124 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
1125 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
1126 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
1127 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
1128 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 |
1129 WPA_DRIVER_CAPA_ENC_WEP104 |
1130 WPA_DRIVER_CAPA_ENC_TKIP |
1131 WPA_DRIVER_CAPA_ENC_CCMP;
1132
80bc75f1 1133 drv->capa.max_scan_ssids = info.max_scan_ssids;
1581b38b
JM		 1134 if (info.ap_supported)
1135 drv->capa.flags |= WPA_DRIVER_FLAGS_AP;
93d11400
ZY		 1136
1137 if (info.auth_supported)
1138 drv->capa.flags |= WPA_DRIVER_FLAGS_SME;
1139 else if (!info.connect_supported) {
1140 wpa_printf(MSG_INFO, "nl80211: Driver does not support "
1141 "authentication/association or connect commands");
1142 return -1;
1143 }
1144
0194fedb
JB		 1145 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE;
1146
93d11400 1147 return 0;
80bc75f1 1148}
bbaf0837 1149#endif /* HOSTAPD */
80bc75f1
JM		 1150
1151
9fff9fdc
JM		 1152static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv,
1153 void *ctx)
3f5285e8 1154{
9fff9fdc 1155 int ret;
3f5285e8 1156
9fff9fdc 1157 /* Initialize generic netlink and nl80211 */
3f5285e8
JM		 1158
1159 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
1160 if (drv->nl_cb == NULL) {
1161 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
1162 "callbacks");
1163 goto err1;
1164 }
1165
1166 drv->nl_handle = nl_handle_alloc_cb(drv->nl_cb);
1167 if (drv->nl_handle == NULL) {
1168 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
1169 "callbacks");
1170 goto err2;
1171 }
1172
335ce76b
JM		 1173 drv->nl_handle_event = nl_handle_alloc_cb(drv->nl_cb);
1174 if (drv->nl_handle_event == NULL) {
1175 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
1176 "callbacks (event)");
1177 goto err2b;
1178 }
1179
3f5285e8
JM		 1180 if (genl_connect(drv->nl_handle)) {
1181 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
1182 "netlink");
1183 goto err3;
1184 }
1185
335ce76b
JM		 1186 if (genl_connect(drv->nl_handle_event)) {
1187 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
1188 "netlink (event)");
1189 goto err3;
1190 }
1191
9fff9fdc
JM		 1192#ifdef CONFIG_LIBNL20
1193 if (genl_ctrl_alloc_cache(drv->nl_handle, &drv->nl_cache) < 0) {
1194 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1195 "netlink cache");
1196 goto err3;
1197 }
335ce76b
JM		 1198 if (genl_ctrl_alloc_cache(drv->nl_handle_event, &drv->nl_cache_event) <
1199 0) {
1200 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1201 "netlink cache (event)");
1202 goto err3b;
1203 }
9fff9fdc 1204#else /* CONFIG_LIBNL20 */
3f5285e8
JM		 1205 drv->nl_cache = genl_ctrl_alloc_cache(drv->nl_handle);
1206 if (drv->nl_cache == NULL) {
1207 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1208 "netlink cache");
1209 goto err3;
1210 }
335ce76b
JM		 1211 drv->nl_cache_event = genl_ctrl_alloc_cache(drv->nl_handle_event);
1212 if (drv->nl_cache_event == NULL) {
1213 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1214 "netlink cache (event)");
1215 goto err3b;
1216 }
9fff9fdc
JM		 1217#endif /* CONFIG_LIBNL20 */
1218
3f5285e8
JM		 1219 drv->nl80211 = genl_ctrl_search_by_name(drv->nl_cache, "nl80211");
1220 if (drv->nl80211 == NULL) {
1221 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not "
1222 "found");
1223 goto err4;
1224 }
1225
97865538
JM		 1226 ret = nl_get_multicast_id(drv, "nl80211", "scan");
1227 if (ret >= 0)
335ce76b 1228 ret = nl_socket_add_membership(drv->nl_handle_event, ret);
97865538
JM		 1229 if (ret < 0) {
1230 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
1231 "membership for scan events: %d (%s)",
1232 ret, strerror(-ret));
1233 goto err4;
1234 }
c2a04078
JM		 1235
1236 ret = nl_get_multicast_id(drv, "nl80211", "mlme");
1237 if (ret >= 0)
335ce76b 1238 ret = nl_socket_add_membership(drv->nl_handle_event, ret);
c2a04078
JM		 1239 if (ret < 0) {
1240 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
1241 "membership for mlme events: %d (%s)",
1242 ret, strerror(-ret));
1243 goto err4;
1244 }
c2a04078 1245
335ce76b 1246 eloop_register_read_sock(nl_socket_get_fd(drv->nl_handle_event),
97865538
JM		 1247 wpa_driver_nl80211_event_receive, drv, ctx);
1248
9fff9fdc
JM		 1249 return 0;
1250
1251err4:
335ce76b
JM		 1252 nl_cache_free(drv->nl_cache_event);
1253err3b:
9fff9fdc
JM		 1254 nl_cache_free(drv->nl_cache);
1255err3:
335ce76b
JM		 1256 nl_handle_destroy(drv->nl_handle_event);
1257err2b:
9fff9fdc
JM		 1258 nl_handle_destroy(drv->nl_handle);
1259err2:
1260 nl_cb_put(drv->nl_cb);
1261err1:
1262 return -1;
1263}
1264
1265
bbaf0837
JM		 1266static int wpa_driver_nl80211_init_link_events(
1267 struct wpa_driver_nl80211_data *drv)
1268{
1269#ifdef HOSTAPD
1270 return 0;
1271#else /* HOSTAPD */
1272 int s;
1273 struct sockaddr_nl local;
1274
1275 s = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
1276 if (s < 0) {
1277 perror("socket(PF_NETLINK,SOCK_RAW,NETLINK_ROUTE)");
7af376e4 1278 return -1;
bbaf0837
JM		 1279 }
1280
1281 os_memset(&local, 0, sizeof(local));
1282 local.nl_family = AF_NETLINK;
1283 local.nl_groups = RTMGRP_LINK;
1284 if (bind(s, (struct sockaddr *) &local, sizeof(local)) < 0) {
1285 perror("bind(netlink)");
1286 close(s);
1287 return -1;
1288 }
1289
1290 eloop_register_read_sock(s, wpa_driver_nl80211_event_receive_link, drv,
7af376e4 1291 drv->ctx);
bbaf0837
JM		 1292 drv->link_event_sock = s;
1293
1294 return 0;
1295#endif /* HOSTAPD */
1296}
1297
1298
9fff9fdc
JM		 1299/**
1300 * wpa_driver_nl80211_init - Initialize nl80211 driver interface
1301 * @ctx: context to be used when calling wpa_supplicant functions,
1302 * e.g., wpa_supplicant_event()
1303 * @ifname: interface name, e.g., wlan0
1304 * Returns: Pointer to private data, %NULL on failure
1305 */
1306static void * wpa_driver_nl80211_init(void *ctx, const char *ifname)
1307{
9fff9fdc
JM		 1308 struct wpa_driver_nl80211_data *drv;
1309
1310 drv = os_zalloc(sizeof(*drv));
1311 if (drv == NULL)
1312 return NULL;
1313 drv->ctx = ctx;
1314 os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
9fff9fdc
JM		 1315 drv->monitor_ifidx = -1;
1316 drv->monitor_sock = -1;
bbaf0837
JM		 1317 drv->link_event_sock = -1;
1318 drv->ioctl_sock = -1;
9fff9fdc 1319
bbaf0837
JM		 1320 if (wpa_driver_nl80211_init_nl(drv, ctx)) {
1321 os_free(drv);
1322 return NULL;
1323 }
9fff9fdc 1324
3f5285e8
JM		 1325 drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
1326 if (drv->ioctl_sock < 0) {
1327 perror("socket(PF_INET,SOCK_DGRAM)");
bbaf0837 1328 goto failed;
3f5285e8
JM		 1329 }
1330
bbaf0837
JM		 1331 if (wpa_driver_nl80211_init_link_events(drv) ||
1332 wpa_driver_nl80211_finish_drv_init(drv))
1333 goto failed;
7524cfb1
JM		 1334
1335 return drv;
1336
bbaf0837
JM		 1337failed:
1338 if (drv->link_event_sock >= 0) {
1339 eloop_unregister_read_sock(drv->link_event_sock);
1340 close(drv->link_event_sock);
1341 }
1342 if (drv->ioctl_sock >= 0)
1343 close(drv->ioctl_sock);
1344
7524cfb1 1345 genl_family_put(drv->nl80211);
7524cfb1 1346 nl_cache_free(drv->nl_cache);
7524cfb1 1347 nl_handle_destroy(drv->nl_handle);
7524cfb1 1348 nl_cb_put(drv->nl_cb);
bbaf0837 1349
7524cfb1
JM		 1350 os_free(drv);
1351 return NULL;
1352}
1353
1354
362f781e 1355static int
7524cfb1
JM		 1356wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv)
1357{
a87c9d96
JM		 1358 drv->ifindex = if_nametoindex(drv->ifname);
1359
bbaf0837 1360#ifndef HOSTAPD
ad1e68e6 1361 if (wpa_driver_nl80211_set_mode(drv, IEEE80211_MODE_INFRA) < 0) {
a87c9d96
JM		 1362 wpa_printf(MSG_DEBUG, "nl80211: Could not configure driver to "
1363 "use managed mode");
1364 }
1365
2135f224
JM		 1366 if (hostapd_set_iface_flags(drv, drv->ifname, 1)) {
1367 wpa_printf(MSG_ERROR, "Could not set interface '%s' "
1368 "UP", drv->ifname);
362f781e
JM		 1369 return -1;
1370 }
3f5285e8 1371
93d11400
ZY		 1372 if (wpa_driver_nl80211_capa(drv))
1373 return -1;
80bc75f1 1374
3f5285e8 1375 wpa_driver_nl80211_send_oper_ifla(drv, 1, IF_OPER_DORMANT);
bbaf0837 1376#endif /* HOSTAPD */
362f781e
JM		 1377
1378 return 0;
3f5285e8
JM		 1379}
1380
1381
bbaf0837
JM		 1382#ifdef HOSTAPD
1383static void wpa_driver_nl80211_free_bss(struct wpa_driver_nl80211_data *drv)
1384{
1385 struct i802_bss *bss, *prev;
1386 bss = drv->bss.next;
1387 while (bss) {
1388 prev = bss;
1389 bss = bss->next;
1390 os_free(bss);
1391 }
1392}
1393#endif /* HOSTAPD */
1394
1395
8a27af5c
JM		 1396#if defined(CONFIG_AP) || defined(HOSTAPD)
1397static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv)
1398{
1399 struct nl_msg *msg;
1400
1401 msg = nlmsg_alloc();
1402 if (!msg)
1403 return -ENOMEM;
1404
1405 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1406 0, NL80211_CMD_DEL_BEACON, 0);
1407 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1408
1409 return send_and_recv_msgs(drv, msg, NULL, NULL);
1410 nla_put_failure:
1411 return -ENOBUFS;
1412}
1413#endif /* CONFIG_AP || HOSTAPD */
1414
1415
3f5285e8 1416/**
7e5ba1b9
JM		 1417 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface
1418 * @priv: Pointer to private nl80211 data from wpa_driver_nl80211_init()
3f5285e8
JM		 1419 *
1420 * Shut down driver interface and processing of driver events. Free
1421 * private data buffer if one was allocated in wpa_driver_nl80211_init().
1422 */
7e5ba1b9 1423static void wpa_driver_nl80211_deinit(void *priv)
3f5285e8
JM		 1424{
1425 struct wpa_driver_nl80211_data *drv = priv;
3f5285e8 1426
bbaf0837 1427#if defined(CONFIG_AP) || defined(HOSTAPD)
460456f8 1428 nl80211_remove_monitor_interface(drv);
0915d02c
JM		 1429 if (drv->monitor_sock >= 0) {
1430 eloop_unregister_read_sock(drv->monitor_sock);
1431 close(drv->monitor_sock);
1432 }
8a27af5c
JM		 1433
1434 if (drv->nlmode == NL80211_IFTYPE_AP)
1435 wpa_driver_nl80211_del_beacon(drv);
bbaf0837 1436#endif /* CONFIG_AP || HOSTAPD */
0915d02c 1437
bbaf0837
JM		 1438#ifdef HOSTAPD
1439 if (drv->last_freq_ht) {
1440 /* Clear HT flags from the driver */
1441 struct hostapd_freq_params freq;
1442 os_memset(&freq, 0, sizeof(freq));
1443 freq.freq = drv->last_freq;
1444 i802_set_freq(priv, &freq);
1445 }
1446
bbaf0837
JM		 1447 if (drv->eapol_sock >= 0) {
1448 eloop_unregister_read_sock(drv->eapol_sock);
1449 close(drv->eapol_sock);
1450 }
1451
1452 if (drv->if_indices != drv->default_if_indices)
1453 os_free(drv->if_indices);
1454
1455 wpa_driver_nl80211_free_bss(drv);
1456#else /* HOSTAPD */
3f5285e8
JM		 1457
1458 wpa_driver_nl80211_send_oper_ifla(priv, 0, IF_OPER_UP);
1459
bbaf0837
JM		 1460 if (drv->link_event_sock >= 0) {
1461 eloop_unregister_read_sock(drv->link_event_sock);
1462 close(drv->link_event_sock);
1463 }
1464#endif /* HOSTAPD */
3f5285e8 1465
bbaf0837
JM		 1466 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
1467
1468 (void) hostapd_set_iface_flags(drv, drv->ifname, 0);
ad1e68e6 1469 wpa_driver_nl80211_set_mode(drv, IEEE80211_MODE_INFRA);
3f5285e8 1470
bbaf0837
JM		 1471 if (drv->ioctl_sock >= 0)
1472 close(drv->ioctl_sock);
3f5285e8 1473
335ce76b 1474 eloop_unregister_read_sock(nl_socket_get_fd(drv->nl_handle_event));
3f5285e8
JM		 1475 genl_family_put(drv->nl80211);
1476 nl_cache_free(drv->nl_cache);
335ce76b 1477 nl_cache_free(drv->nl_cache_event);
3f5285e8 1478 nl_handle_destroy(drv->nl_handle);
335ce76b 1479 nl_handle_destroy(drv->nl_handle_event);
3f5285e8
JM		 1480 nl_cb_put(drv->nl_cb);
1481
1482 os_free(drv);
1483}
1484
1485
1486/**
1487 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion
ad1e68e6 1488 * @eloop_ctx: Driver private data
3f5285e8
JM		 1489 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init()
1490 *
1491 * This function can be used as registered timeout when starting a scan to
1492 * generate a scan completed event if the driver does not report this.
1493 */
1494static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx)
1495{
ad1e68e6
JM		 1496 struct wpa_driver_nl80211_data *drv = eloop_ctx;
1497 if (drv->ap_scan_as_station) {
1498 wpa_driver_nl80211_set_mode(drv, IEEE80211_MODE_AP);
1499 drv->ap_scan_as_station = 0;
1500 }
3f5285e8
JM		 1501 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results");
1502 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL);
1503}
1504
1505
1506/**
1507 * wpa_driver_nl80211_scan - Request the driver to initiate scan
ad1e68e6 1508 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
6a1063e0 1509 * @params: Scan parameters
3f5285e8
JM		 1510 * Returns: 0 on success, -1 on failure
1511 */
6a1063e0
JM		 1512static int wpa_driver_nl80211_scan(void *priv,
1513 struct wpa_driver_scan_params *params)
3f5285e8
JM		 1514{
1515 struct wpa_driver_nl80211_data *drv = priv;
3f5285e8 1516 int ret = 0, timeout;
d3a98225 1517 struct nl_msg *msg, *ssids, *freqs;
6a1063e0 1518 size_t i;
3f5285e8 1519
0e75527f
JM		 1520 msg = nlmsg_alloc();
1521 ssids = nlmsg_alloc();
d3a98225
JM		 1522 freqs = nlmsg_alloc();
1523 if (!msg || !ssids || !freqs) {
0e75527f
JM		 1524 nlmsg_free(msg);
1525 nlmsg_free(ssids);
d3a98225 1526 nlmsg_free(freqs);
3f5285e8
JM		 1527 return -1;
1528 }
1529
0e75527f
JM		 1530 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
1531 NL80211_CMD_TRIGGER_SCAN, 0);
1532
1533 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3f5285e8 1534
6a1063e0
JM		 1535 for (i = 0; i < params->num_ssids; i++) {
1536 NLA_PUT(ssids, i + 1, params->ssids[i].ssid_len,
1537 params->ssids[i].ssid);
3f5285e8 1538 }
6a1063e0
JM		 1539 if (params->num_ssids)
1540 nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids);
3f5285e8 1541
d173df52
JM		 1542 if (params->extra_ies) {
1543 NLA_PUT(msg, NL80211_ATTR_IE, params->extra_ies_len,
1544 params->extra_ies);
1545 }
1546
d3a98225
JM		 1547 if (params->freqs) {
1548 for (i = 0; params->freqs[i]; i++)
1549 NLA_PUT_U32(freqs, i + 1, params->freqs[i]);
1550 nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES, freqs);
1551 }
1552
0e75527f
JM		 1553 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
1554 msg = NULL;
1555 if (ret) {
1556 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d "
1557 "(%s)", ret, strerror(-ret));
ad1e68e6
JM		 1558#ifdef HOSTAPD
1559 if (drv->nlmode == NL80211_IFTYPE_AP) {
1560 /*
1561 * mac80211 does not allow scan requests in AP mode, so
1562 * try to do this in station mode.
1563 */
1564 if (wpa_driver_nl80211_set_mode(drv,
1565 IEEE80211_MODE_INFRA))
1566 goto nla_put_failure;
1567
1568 if (wpa_driver_nl80211_scan(drv, params)) {
1569 wpa_driver_nl80211_set_mode(drv,
1570 IEEE80211_MODE_AP);
1571 goto nla_put_failure;
1572 }
1573
1574 /* Restore AP mode when processing scan results */
1575 drv->ap_scan_as_station = 1;
1576 ret = 0;
1577 } else
1578 goto nla_put_failure;
1579#else /* HOSTAPD */
0e75527f 1580 goto nla_put_failure;
ad1e68e6 1581#endif /* HOSTAPD */
3f5285e8
JM		 1582 }
1583
1584 /* Not all drivers generate "scan completed" wireless event, so try to
1585 * read results after a timeout. */
0e75527f 1586 timeout = 10;
3f5285e8
JM		 1587 if (drv->scan_complete_events) {
1588 /*
d173df52
JM		 1589 * The driver seems to deliver events to notify when scan is
1590 * complete, so use longer timeout to avoid race conditions
1591 * with scanning and following association request.
3f5285e8
JM		 1592 */
1593 timeout = 30;
1594 }
1595 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d "
1596 "seconds", ret, timeout);
1597 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
0e75527f
JM		 1598 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout,
1599 drv, drv->ctx);
3f5285e8 1600
0e75527f
JM		 1601nla_put_failure:
1602 nlmsg_free(ssids);
1603 nlmsg_free(msg);
d3a98225 1604 nlmsg_free(freqs);
3f5285e8
JM		 1605 return ret;
1606}
1607
1608
b3db1e1c 1609static int bss_info_handler(struct nl_msg *msg, void *arg)
3f5285e8 1610{
b3db1e1c
JM		 1611 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1612 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1613 struct nlattr *bss[NL80211_BSS_MAX + 1];
1614 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
1615 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC },
1616 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 },
1617 [NL80211_BSS_TSF] = { .type = NLA_U64 },
1618 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 },
1619 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 },
1620 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC },
1621 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 },
1622 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 },
e6b8efeb 1623 [NL80211_BSS_STATUS] = { .type = NLA_U32 },
b3ad11bb 1624 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 },
b3db1e1c
JM		 1625 };
1626 struct wpa_scan_results *res = arg;
3f5285e8
JM		 1627 struct wpa_scan_res **tmp;
1628 struct wpa_scan_res *r;
b3db1e1c
JM		 1629 const u8 *ie;
1630 size_t ie_len;
3f5285e8 1631
b3db1e1c
JM		 1632 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1633 genlmsg_attrlen(gnlh, 0), NULL);
1634 if (!tb[NL80211_ATTR_BSS])
1635 return NL_SKIP;
1636 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS],
1637 bss_policy))
1638 return NL_SKIP;
1639 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) {
1640 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
1641 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
1642 } else {
1643 ie = NULL;
1644 ie_len = 0;
1645 }
3f5285e8 1646
b3db1e1c 1647 r = os_zalloc(sizeof(*r) + ie_len);
3f5285e8 1648 if (r == NULL)
b3db1e1c
JM		 1649 return NL_SKIP;
1650 if (bss[NL80211_BSS_BSSID])
1651 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]),
1652 ETH_ALEN);
1653 if (bss[NL80211_BSS_FREQUENCY])
1654 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
1655 if (bss[NL80211_BSS_BEACON_INTERVAL])
1656 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]);
1657 if (bss[NL80211_BSS_CAPABILITY])
1658 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]);
7c2849d2
JM		 1659 r->flags |= WPA_SCAN_NOISE_INVALID;
1660 if (bss[NL80211_BSS_SIGNAL_MBM]) {
b3db1e1c 1661 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]);
7c2849d2
JM		 1662 r->level /= 100; /* mBm to dBm */
1663 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID;
1664 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) {
1665 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]);
1666 r->flags |= WPA_SCAN_LEVEL_INVALID;
1667 } else
1668 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID;
b3db1e1c
JM		 1669 if (bss[NL80211_BSS_TSF])
1670 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]);
b3ad11bb
JM		 1671 if (bss[NL80211_BSS_SEEN_MS_AGO])
1672 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]);
b3db1e1c
JM		 1673 r->ie_len = ie_len;
1674 if (ie)
1675 os_memcpy(r + 1, ie, ie_len);
3f5285e8 1676
e6b8efeb
JM		 1677 if (bss[NL80211_BSS_STATUS]) {
1678 enum nl80211_bss_status status;
1679 status = nla_get_u32(bss[NL80211_BSS_STATUS]);
1680 switch (status) {
1681 case NL80211_BSS_STATUS_AUTHENTICATED:
1682 r->flags |= WPA_SCAN_AUTHENTICATED;
1683 break;
1684 case NL80211_BSS_STATUS_ASSOCIATED:
1685 r->flags |= WPA_SCAN_ASSOCIATED;
1686 break;
1687 default:
1688 break;
1689 }
1690 }
1691
3f5285e8
JM		 1692 tmp = os_realloc(res->res,
1693 (res->num + 1) * sizeof(struct wpa_scan_res *));
1694 if (tmp == NULL) {
1695 os_free(r);
b3db1e1c 1696 return NL_SKIP;
3f5285e8
JM		 1697 }
1698 tmp[res->num++] = r;
1699 res->res = tmp;
b3db1e1c
JM		 1700
1701 return NL_SKIP;
3f5285e8 1702}
b3db1e1c 1703
3f5285e8 1704
d72aad94
JM		 1705static void clear_state_mismatch(struct wpa_driver_nl80211_data *drv,
1706 const u8 *addr)
1707{
1708 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
1709 wpa_printf(MSG_DEBUG, "nl80211: Clear possible state "
1710 "mismatch");
1711 wpa_driver_nl80211_mlme(drv, addr,
1712 NL80211_CMD_DEAUTHENTICATE,
1713 WLAN_REASON_PREV_AUTH_NOT_VALID);
1714 }
1715}
1716
1717
e6b8efeb
JM		 1718static void wpa_driver_nl80211_check_bss_status(
1719 struct wpa_driver_nl80211_data *drv, struct wpa_scan_results *res)
1720{
1721 size_t i;
1722
1723 for (i = 0; i < res->num; i++) {
1724 struct wpa_scan_res *r = res->res[i];
1725 if (r->flags & WPA_SCAN_AUTHENTICATED) {
1726 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
1727 "indicates BSS status with " MACSTR
1728 " as authenticated",
1729 MAC2STR(r->bssid));
1730 if (drv->nlmode == NL80211_IFTYPE_STATION &&
1731 os_memcmp(r->bssid, drv->bssid, ETH_ALEN) != 0 &&
1732 os_memcmp(r->bssid, drv->auth_bssid, ETH_ALEN) !=
1733 0) {
1734 wpa_printf(MSG_DEBUG, "nl80211: Unknown BSSID"
1735 " in local state (auth=" MACSTR
1736 " assoc=" MACSTR ")",
1737 MAC2STR(drv->auth_bssid),
1738 MAC2STR(drv->bssid));
1739 }
1740 }
1741
1742 if (r->flags & WPA_SCAN_ASSOCIATED) {
1743 wpa_printf(MSG_DEBUG, "nl80211: Scan results "
1744 "indicate BSS status with " MACSTR
1745 " as associated",
1746 MAC2STR(r->bssid));
1747 if (drv->nlmode == NL80211_IFTYPE_STATION &&
1748 !drv->associated) {
1749 wpa_printf(MSG_DEBUG, "nl80211: Local state "
1750 "(not associated) does not match "
1751 "with BSS state");
d72aad94 1752 clear_state_mismatch(drv, r->bssid);
e6b8efeb
JM		 1753 } else if (drv->nlmode == NL80211_IFTYPE_STATION &&
1754 os_memcmp(drv->bssid, r->bssid, ETH_ALEN) !=
1755 0) {
1756 wpa_printf(MSG_DEBUG, "nl80211: Local state "
1757 "(associated with " MACSTR ") does "
1758 "not match with BSS state",
d72aad94
JM		 1759 MAC2STR(drv->bssid));
1760 clear_state_mismatch(drv, r->bssid);
1761 clear_state_mismatch(drv, drv->bssid);
e6b8efeb
JM		 1762 }
1763 }
1764 }
1765}
1766
1767
3f5285e8
JM		 1768/**
1769 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results
1770 * @priv: Pointer to private wext data from wpa_driver_nl80211_init()
1771 * Returns: Scan results on success, -1 on failure
1772 */
7e5ba1b9
JM		 1773static struct wpa_scan_results *
1774wpa_driver_nl80211_get_scan_results(void *priv)
3f5285e8
JM		 1775{
1776 struct wpa_driver_nl80211_data *drv = priv;
b3db1e1c 1777 struct nl_msg *msg;
3f5285e8 1778 struct wpa_scan_results *res;
b3db1e1c 1779 int ret;
3f5285e8
JM		 1780
1781 res = os_zalloc(sizeof(*res));
b3db1e1c 1782 if (res == NULL)
8e2c104f 1783 return NULL;
b3db1e1c
JM		 1784 msg = nlmsg_alloc();
1785 if (!msg)
1786 goto nla_put_failure;
3f5285e8 1787
b3db1e1c
JM		 1788 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, NLM_F_DUMP,
1789 NL80211_CMD_GET_SCAN, 0);
1790 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3f5285e8 1791
b3db1e1c
JM		 1792 ret = send_and_recv_msgs(drv, msg, bss_info_handler, res);
1793 msg = NULL;
1794 if (ret == 0) {
1795 wpa_printf(MSG_DEBUG, "Received scan results (%lu BSSes)",
1796 (unsigned long) res->num);
e6b8efeb 1797 wpa_driver_nl80211_check_bss_status(drv, res);
b3db1e1c 1798 return res;
3f5285e8 1799 }
b3db1e1c
JM		 1800 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
1801 "(%s)", ret, strerror(-ret));
1802nla_put_failure:
1803 nlmsg_free(msg);
1804 wpa_scan_results_free(res);
1805 return NULL;
3f5285e8
JM		 1806}
1807
1808
642187d6
JM		 1809static int wpa_driver_nl80211_set_key(const char *ifname, void *priv,
1810 wpa_alg alg, const u8 *addr, int key_idx,
1811 int set_tx,
1812 const u8 *seq, size_t seq_len,
1813 const u8 *key, size_t key_len)
3f5285e8 1814{
642187d6
JM		 1815 struct wpa_driver_nl80211_data *drv = priv;
1816 int ifindex = if_nametoindex(ifname);
3f5285e8 1817 struct nl_msg *msg;
1ad1cdc2 1818 int ret;
3f5285e8 1819
1ad1cdc2
JM		 1820 wpa_printf(MSG_DEBUG, "%s: ifindex=%d alg=%d addr=%p key_idx=%d "
1821 "set_tx=%d seq_len=%lu key_len=%lu",
1822 __func__, ifindex, alg, addr, key_idx, set_tx,
3f5285e8
JM		 1823 (unsigned long) seq_len, (unsigned long) key_len);
1824
1825 msg = nlmsg_alloc();
1ad1cdc2
JM		 1826 if (!msg)
1827 return -ENOMEM;
3f5285e8
JM		 1828
1829 if (alg == WPA_ALG_NONE) {
1ad1cdc2
JM		 1830 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1831 0, NL80211_CMD_DEL_KEY, 0);
3f5285e8 1832 } else {
1ad1cdc2
JM		 1833 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1834 0, NL80211_CMD_NEW_KEY, 0);
3f5285e8 1835 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key);
d723bab4
JM		 1836 switch (alg) {
1837 case WPA_ALG_WEP:
1838 if (key_len == 5)
1839 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
1840 WLAN_CIPHER_SUITE_WEP40);
1841 else
1842 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
1843 WLAN_CIPHER_SUITE_WEP104);
1844 break;
1845 case WPA_ALG_TKIP:
1846 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
1847 WLAN_CIPHER_SUITE_TKIP);
1848 break;
1849 case WPA_ALG_CCMP:
1850 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
1851 WLAN_CIPHER_SUITE_CCMP);
1852 break;
1853 case WPA_ALG_IGTK:
1854 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
1855 WLAN_CIPHER_SUITE_AES_CMAC);
1856 break;
1857 default:
1858 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
1859 "algorithm %d", __func__, alg);
3f5285e8
JM		 1860 nlmsg_free(msg);
1861 return -1;
1862 }
1863 }
1864
849ef835 1865 if (seq && seq_len)
1ad1cdc2
JM		 1866 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq);
1867
3f5285e8
JM		 1868 if (addr && os_memcmp(addr, "\xff\xff\xff\xff\xff\xff", ETH_ALEN) != 0)
1869 {
1870 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr));
1871 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
1872 }
1873 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1ad1cdc2 1874 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
3f5285e8 1875
1ad1cdc2
JM		 1876 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
1877 if (ret == -ENOENT && alg == WPA_ALG_NONE)
1878 ret = 0;
1879 if (ret)
1880 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)",
1881 ret, strerror(-ret));
3f5285e8 1882
1ad1cdc2
JM		 1883 /*
1884 * If we failed or don't need to set the default TX key (below),
1885 * we're done here.
1886 */
1887 if (ret || !set_tx || alg == WPA_ALG_NONE)
1888 return ret;
1889#ifdef HOSTAPD /* FIX: is this needed? */
1890 if (addr)
1891 return ret;
1892#endif /* HOSTAPD */
3f5285e8 1893
1ad1cdc2
JM		 1894 msg = nlmsg_alloc();
1895 if (!msg)
1896 return -ENOMEM;
3f5285e8 1897
1ad1cdc2
JM		 1898 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1899 0, NL80211_CMD_SET_KEY, 0);
1900 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1901 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
1902 if (alg == WPA_ALG_IGTK)
1903 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT);
1904 else
1905 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
3f5285e8 1906
1ad1cdc2
JM		 1907 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
1908 if (ret == -ENOENT)
1909 ret = 0;
1910 if (ret)
1911 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; "
1912 "err=%d %s)", ret, strerror(-ret));
1913 return ret;
3f5285e8
JM		 1914
1915nla_put_failure:
6241fcb1 1916 return -ENOBUFS;
3f5285e8
JM		 1917}
1918
1919
0194fedb
JB		 1920static int nl_add_key(struct nl_msg *msg, wpa_alg alg,
1921 int key_idx, int defkey,
1922 const u8 *seq, size_t seq_len,
1923 const u8 *key, size_t key_len)
1924{
1925 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY);
1926 if (!key_attr)
1927 return -1;
1928
1929 if (defkey && alg == WPA_ALG_IGTK)
1930 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT);
1931 else if (defkey)
1932 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
1933
1934 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx);
1935
d723bab4
JM		 1936 switch (alg) {
1937 case WPA_ALG_WEP:
1938 if (key_len == 5)
2aa5f847
JM		 1939 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
1940 WLAN_CIPHER_SUITE_WEP40);
d723bab4 1941 else
2aa5f847
JM		 1942 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
1943 WLAN_CIPHER_SUITE_WEP104);
d723bab4
JM		 1944 break;
1945 case WPA_ALG_TKIP:
2aa5f847 1946 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP);
d723bab4
JM		 1947 break;
1948 case WPA_ALG_CCMP:
2aa5f847 1949 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP);
d723bab4
JM		 1950 break;
1951 case WPA_ALG_IGTK:
2aa5f847
JM		 1952 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
1953 WLAN_CIPHER_SUITE_AES_CMAC);
d723bab4
JM		 1954 break;
1955 default:
1956 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
1957 "algorithm %d", __func__, alg);
0194fedb 1958 return -1;
d723bab4 1959 }
0194fedb
JB		 1960
1961 if (seq && seq_len)
1962 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq);
1963
1964 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key);
1965
1966 nla_nest_end(msg, key_attr);
1967
1968 return 0;
1969 nla_put_failure:
1970 return -1;
1971}
1972
c811d5bc 1973
cfaab580
ZY		 1974static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params,
1975 struct nl_msg *msg)
1976{
1977 int i, privacy = 0;
1978 struct nlattr *nl_keys, *nl_key;
1979
1980 for (i = 0; i < 4; i++) {
1981 if (!params->wep_key[i])
1982 continue;
1983 privacy = 1;
1984 break;
1985 }
1986 if (!privacy)
1987 return 0;
1988
1989 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
1990
1991 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS);
1992 if (!nl_keys)
1993 goto nla_put_failure;
1994
1995 for (i = 0; i < 4; i++) {
1996 if (!params->wep_key[i])
1997 continue;
1998
1999 nl_key = nla_nest_start(msg, i);
2000 if (!nl_key)
2001 goto nla_put_failure;
2002
2003 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i],
2004 params->wep_key[i]);
2005 if (params->wep_key_len[i] == 5)
2006 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
2007 WLAN_CIPHER_SUITE_WEP40);
2008 else
2009 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
2010 WLAN_CIPHER_SUITE_WEP104);
2011
2012 NLA_PUT_U8(msg, NL80211_KEY_IDX, i);
2013
2014 if (i == params->wep_tx_keyidx)
2015 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
2016
2017 nla_nest_end(msg, nl_key);
2018 }
2019 nla_nest_end(msg, nl_keys);
2020
2021 return 0;
2022
2023nla_put_failure:
2024 return -ENOBUFS;
2025}
2026
2027
c2a04078
JM		 2028static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
2029 const u8 *addr, int cmd, u16 reason_code)
2030{
2031 int ret = -1;
2032 struct nl_msg *msg;
2033
2034 msg = nlmsg_alloc();
2035 if (!msg)
2036 return -1;
2037
2038 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0, cmd, 0);
2039
2040 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2041 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code);
2042 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
2043
2044 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2045 msg = NULL;
2046 if (ret) {
2047 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
2048 "(%s)", ret, strerror(-ret));
2049 goto nla_put_failure;
2050 }
2051 ret = 0;
2052
2053nla_put_failure:
2054 nlmsg_free(msg);
2055 return ret;
2056}
3f5285e8
JM		 2057
2058
cfaab580
ZY		 2059static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv,
2060 const u8 *addr, int reason_code)
2061{
2062 wpa_printf(MSG_DEBUG, "%s", __func__);
2063 drv->associated = 0;
2064 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISCONNECT,
2065 reason_code);
2066}
2067
2068
3f5285e8 2069static int wpa_driver_nl80211_deauthenticate(void *priv, const u8 *addr,
c2a04078 2070 int reason_code)
3f5285e8
JM		 2071{
2072 struct wpa_driver_nl80211_data *drv = priv;
cfaab580
ZY		 2073 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
2074 return wpa_driver_nl80211_disconnect(drv, addr, reason_code);
c2a04078 2075 wpa_printf(MSG_DEBUG, "%s", __func__);
13405f35 2076 drv->associated = 0;
c2a04078
JM		 2077 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE,
2078 reason_code);
3f5285e8
JM		 2079}
2080
2081
2082static int wpa_driver_nl80211_disassociate(void *priv, const u8 *addr,
c2a04078 2083 int reason_code)
3f5285e8
JM		 2084{
2085 struct wpa_driver_nl80211_data *drv = priv;
cfaab580
ZY		 2086 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
2087 return wpa_driver_nl80211_disconnect(drv, addr, reason_code);
c2a04078 2088 wpa_printf(MSG_DEBUG, "%s", __func__);
13405f35 2089 drv->associated = 0;
c2a04078
JM		 2090 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISASSOCIATE,
2091 reason_code);
3f5285e8
JM		 2092}
2093
2094
c2a04078
JM		 2095static int wpa_driver_nl80211_authenticate(
2096 void *priv, struct wpa_driver_auth_params *params)
2097{
2098 struct wpa_driver_nl80211_data *drv = priv;
a0b2f99b 2099 int ret = -1, i;
c2a04078
JM		 2100 struct nl_msg *msg;
2101 enum nl80211_auth_type type;
6d6f4bb8 2102 int count = 0;
c2a04078
JM		 2103
2104 drv->associated = 0;
e6b8efeb 2105 os_memset(drv->auth_bssid, 0, ETH_ALEN);
c2a04078 2106
4a867032
JM		 2107 if (wpa_driver_nl80211_set_mode(drv, IEEE80211_MODE_INFRA) < 0)
2108 return -1;
2109
6d6f4bb8 2110retry:
c2a04078
JM		 2111 msg = nlmsg_alloc();
2112 if (!msg)
2113 return -1;
2114
2115 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)",
2116 drv->ifindex);
a0b2f99b 2117
0194fedb
JB		 2118 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
2119 NL80211_CMD_AUTHENTICATE, 0);
2120
a0b2f99b
JM		 2121 for (i = 0; i < 4; i++) {
2122 if (!params->wep_key[i])
2123 continue;
642187d6
JM		 2124 wpa_driver_nl80211_set_key(drv->ifname, drv, WPA_ALG_WEP, NULL,
2125 i,
a0b2f99b
JM		 2126 i == params->wep_tx_keyidx, NULL, 0,
2127 params->wep_key[i],
2128 params->wep_key_len[i]);
0194fedb
JB		 2129 if (params->wep_tx_keyidx != i)
2130 continue;
2131 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0,
2132 params->wep_key[i], params->wep_key_len[i])) {
2133 nlmsg_free(msg);
2134 return -1;
2135 }
a0b2f99b
JM		 2136 }
2137
c2a04078
JM		 2138 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2139 if (params->bssid) {
2140 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
2141 MAC2STR(params->bssid));
2142 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
2143 }
2144 if (params->freq) {
2145 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
2146 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
2147 }
2148 if (params->ssid) {
2149 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
2150 params->ssid, params->ssid_len);
2151 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
2152 params->ssid);
2153 }
2154 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len);
2155 if (params->ie)
2156 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie);
2157 /*
2158 * TODO: if multiple auth_alg options enabled, try them one by one if
2159 * the AP rejects authentication due to unknown auth alg
2160 */
2161 if (params->auth_alg & AUTH_ALG_OPEN_SYSTEM)
2162 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2163 else if (params->auth_alg & AUTH_ALG_SHARED_KEY)
2164 type = NL80211_AUTHTYPE_SHARED_KEY;
2165 else if (params->auth_alg & AUTH_ALG_LEAP)
2166 type = NL80211_AUTHTYPE_NETWORK_EAP;
2167 else if (params->auth_alg & AUTH_ALG_FT)
2168 type = NL80211_AUTHTYPE_FT;
2169 else
2170 goto nla_put_failure;
2171 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
2172 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
2173
2174 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2175 msg = NULL;
2176 if (ret) {
2177 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
2178 "(%s)", ret, strerror(-ret));
6d6f4bb8
JM		 2179 count++;
2180 if (ret == -EALREADY && count == 1 && params->bssid) {
2181 /*
2182 * mac80211 does not currently accept new
2183 * authentication if we are already authenticated. As a
2184 * workaround, force deauthentication and try again.
2185 */
2186 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication "
2187 "after forced deauthentication");
2188 wpa_driver_nl80211_deauthenticate(
2189 drv, params->bssid,
2190 WLAN_REASON_PREV_AUTH_NOT_VALID);
2191 nlmsg_free(msg);
2192 goto retry;
2193 }
c2a04078
JM		 2194 goto nla_put_failure;
2195 }
2196 ret = 0;
2197 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send "
2198 "successfully");
2199
2200nla_put_failure:
2201 nlmsg_free(msg);
2202 return ret;
2203}
2204
2205
c3965310 2206#if defined(CONFIG_AP) || defined(HOSTAPD)
282d5590
JM		 2207
2208struct phy_info_arg {
2209 u16 *num_modes;
2210 struct hostapd_hw_modes *modes;
2211};
2212
2213static int phy_info_handler(struct nl_msg *msg, void *arg)
2214{
2215 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
2216 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2217 struct phy_info_arg *phy_info = arg;
2218
2219 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
2220
2221 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
2222 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
2223 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
2224 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
2225 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG },
2226 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG },
2227 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
2228 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
2229 };
2230
2231 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
2232 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
2233 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
2234 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = { .type = NLA_FLAG },
2235 };
2236
2237 struct nlattr *nl_band;
2238 struct nlattr *nl_freq;
2239 struct nlattr *nl_rate;
2240 int rem_band, rem_freq, rem_rate;
2241 struct hostapd_hw_modes *mode;
2242 int idx, mode_is_set;
2243
2244 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2245 genlmsg_attrlen(gnlh, 0), NULL);
2246
2247 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
2248 return NL_SKIP;
2249
2250 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) {
2251 mode = realloc(phy_info->modes, (*phy_info->num_modes + 1) * sizeof(*mode));
2252 if (!mode)
2253 return NL_SKIP;
2254 phy_info->modes = mode;
2255
2256 mode_is_set = 0;
2257
2258 mode = &phy_info->modes[*(phy_info->num_modes)];
2259 memset(mode, 0, sizeof(*mode));
2260 *(phy_info->num_modes) += 1;
2261
2262 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
2263 nla_len(nl_band), NULL);
2264
2265 if (tb_band[NL80211_BAND_ATTR_HT_CAPA]) {
2266 mode->ht_capab = nla_get_u16(
2267 tb_band[NL80211_BAND_ATTR_HT_CAPA]);
2268 }
2269
be8eb8ab
JM		 2270 if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) {
2271 mode->a_mpdu_params |= nla_get_u8(
2272 tb_band[NL80211_BAND_ATTR_HT_AMPDU_FACTOR]) &
2273 0x03;
2274 }
2275
2276 if (tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) {
2277 mode->a_mpdu_params |= nla_get_u8(
2278 tb_band[NL80211_BAND_ATTR_HT_AMPDU_DENSITY]) <<
2279 2;
2280 }
2281
08eb154d
JM		 2282 if (tb_band[NL80211_BAND_ATTR_HT_MCS_SET] &&
2283 nla_len(tb_band[NL80211_BAND_ATTR_HT_MCS_SET])) {
2284 u8 *mcs;
2285 mcs = nla_data(tb_band[NL80211_BAND_ATTR_HT_MCS_SET]);
2286 os_memcpy(mode->mcs_set, mcs, 16);
2287 }
2288
282d5590
JM		 2289 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
2290 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
2291 nla_len(nl_freq), freq_policy);
2292 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
2293 continue;
2294 mode->num_channels++;
2295 }
2296
2297 mode->channels = calloc(mode->num_channels, sizeof(struct hostapd_channel_data));
2298 if (!mode->channels)
2299 return NL_SKIP;
2300
2301 idx = 0;
2302
2303 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
2304 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
2305 nla_len(nl_freq), freq_policy);
2306 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
2307 continue;
2308
2309 mode->channels[idx].freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
2310 mode->channels[idx].flag = 0;
2311
2312 if (!mode_is_set) {
2313 /* crude heuristic */
2314 if (mode->channels[idx].freq < 4000)
2315 mode->mode = HOSTAPD_MODE_IEEE80211B;
2316 else
2317 mode->mode = HOSTAPD_MODE_IEEE80211A;
2318 mode_is_set = 1;
2319 }
2320
2321 /* crude heuristic */
2322 if (mode->channels[idx].freq < 4000)
5a0ffb5f 2323 if (mode->channels[idx].freq == 2484)
282d5590
JM		 2324 mode->channels[idx].chan = 14;
2325 else
2326 mode->channels[idx].chan = (mode->channels[idx].freq - 2407) / 5;
2327 else
2328 mode->channels[idx].chan = mode->channels[idx].freq/5 - 1000;
2329
2330 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
2331 mode->channels[idx].flag |=
2332 HOSTAPD_CHAN_DISABLED;
2333 if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
2334 mode->channels[idx].flag |=
2335 HOSTAPD_CHAN_PASSIVE_SCAN;
2336 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS])
2337 mode->channels[idx].flag |=
2338 HOSTAPD_CHAN_NO_IBSS;
2339 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
2340 mode->channels[idx].flag |=
2341 HOSTAPD_CHAN_RADAR;
2342
2343 if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] &&
2344 !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
2345 mode->channels[idx].max_tx_power =
2346 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100;
2347
2348 idx++;
2349 }
2350
2351 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
2352 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
2353 nla_len(nl_rate), rate_policy);
2354 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
2355 continue;
2356 mode->num_rates++;
2357 }
2358
2359 mode->rates = calloc(mode->num_rates, sizeof(struct hostapd_rate_data));
2360 if (!mode->rates)
2361 return NL_SKIP;
2362
2363 idx = 0;
2364
2365 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
2366 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
2367 nla_len(nl_rate), rate_policy);
2368 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
2369 continue;
2370 mode->rates[idx].rate = nla_get_u32(tb_rate[NL80211_BITRATE_ATTR_RATE]);
2371
2372 /* crude heuristic */
2373 if (mode->mode == HOSTAPD_MODE_IEEE80211B &&
2374 mode->rates[idx].rate > 200)
2375 mode->mode = HOSTAPD_MODE_IEEE80211G;
2376
2377 if (tb_rate[NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE])
2378 mode->rates[idx].flags |= HOSTAPD_RATE_PREAMBLE2;
2379
2380 idx++;
2381 }
2382 }
2383
2384 return NL_SKIP;
2385}
2386
2387static struct hostapd_hw_modes *
2388wpa_driver_nl80211_add_11b(struct hostapd_hw_modes *modes, u16 *num_modes)
2389{
2390 u16 m;
2391 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
2392 int i, mode11g_idx = -1;
2393
2394 /* If only 802.11g mode is included, use it to construct matching
2395 * 802.11b mode data. */
2396
2397 for (m = 0; m < *num_modes; m++) {
2398 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
2399 return modes; /* 802.11b already included */
2400 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
2401 mode11g_idx = m;
2402 }
2403
2404 if (mode11g_idx < 0)
2405 return modes; /* 2.4 GHz band not supported at all */
2406
2407 nmodes = os_realloc(modes, (*num_modes + 1) * sizeof(*nmodes));
2408 if (nmodes == NULL)
2409 return modes; /* Could not add 802.11b mode */
2410
2411 mode = &nmodes[*num_modes];
2412 os_memset(mode, 0, sizeof(*mode));
2413 (*num_modes)++;
2414 modes = nmodes;
2415
2416 mode->mode = HOSTAPD_MODE_IEEE80211B;
2417
2418 mode11g = &modes[mode11g_idx];
2419 mode->num_channels = mode11g->num_channels;
2420 mode->channels = os_malloc(mode11g->num_channels *
2421 sizeof(struct hostapd_channel_data));
2422 if (mode->channels == NULL) {
2423 (*num_modes)--;
2424 return modes; /* Could not add 802.11b mode */
2425 }
2426 os_memcpy(mode->channels, mode11g->channels,
2427 mode11g->num_channels * sizeof(struct hostapd_channel_data));
2428
2429 mode->num_rates = 0;
2430 mode->rates = os_malloc(4 * sizeof(struct hostapd_rate_data));
2431 if (mode->rates == NULL) {
2432 os_free(mode->channels);
2433 (*num_modes)--;
2434 return modes; /* Could not add 802.11b mode */
2435 }
2436
2437 for (i = 0; i < mode11g->num_rates; i++) {
2438 if (mode11g->rates[i].rate > 110 ||
2439 mode11g->rates[i].flags &
2440 (HOSTAPD_RATE_ERP | HOSTAPD_RATE_OFDM))
2441 continue;
2442 mode->rates[mode->num_rates] = mode11g->rates[i];
2443 mode->num_rates++;
2444 if (mode->num_rates == 4)
2445 break;
2446 }
2447
2448 if (mode->num_rates == 0) {
2449 os_free(mode->channels);
2450 os_free(mode->rates);
2451 (*num_modes)--;
2452 return modes; /* No 802.11b rates */
2453 }
2454
2455 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
2456 "information");
2457
2458 return modes;
2459}
2460
2461
2462static struct hostapd_hw_modes *
2463wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
2464{
2465 struct wpa_driver_nl80211_data *drv = priv;
2466 struct nl_msg *msg;
2467 struct phy_info_arg result = {
2468 .num_modes = num_modes,
2469 .modes = NULL,
2470 };
2471
2472 *num_modes = 0;
2473 *flags = 0;
2474
2475 msg = nlmsg_alloc();
2476 if (!msg)
2477 return NULL;
2478
2479 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2480 0, NL80211_CMD_GET_WIPHY, 0);
2481
2482 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2483
2484 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0)
2485 return wpa_driver_nl80211_add_11b(result.modes, num_modes);
2486 nla_put_failure:
2487 return NULL;
2488}
2489
2490
2c2010ac
JM		 2491static int wpa_driver_nl80211_send_frame(struct wpa_driver_nl80211_data *drv,
2492 const void *data, size_t len,
2493 int encrypt)
2494{
2495 __u8 rtap_hdr[] = {
2496 0x00, 0x00, /* radiotap version */
2497 0x0e, 0x00, /* radiotap length */
2498 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */
2499 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */
2500 0x00, /* padding */
2501 0x00, 0x00, /* RX and TX flags to indicate that */
2502 0x00, 0x00, /* this is the injected frame directly */
2503 };
2504 struct iovec iov[2] = {
2505 {
2506 .iov_base = &rtap_hdr,
2507 .iov_len = sizeof(rtap_hdr),
2508 },
2509 {
2510 .iov_base = (void *) data,
2511 .iov_len = len,
2512 }
2513 };
2514 struct msghdr msg = {
2515 .msg_name = NULL,
2516 .msg_namelen = 0,
2517 .msg_iov = iov,
2518 .msg_iovlen = 2,
2519 .msg_control = NULL,
2520 .msg_controllen = 0,
2521 .msg_flags = 0,
2522 };
2523
2524 if (encrypt)
2525 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP;
2526
2527 return sendmsg(drv->monitor_sock, &msg, 0);
2528}
2529
2530
2531static int wpa_driver_nl80211_send_mlme(void *priv, const u8 *data,
2532 size_t data_len)
2533{
2534 struct wpa_driver_nl80211_data *drv = priv;
2535 struct ieee80211_mgmt *mgmt;
7a47d567 2536 int encrypt = 1;
2c2010ac
JM		 2537 u16 fc;
2538
2539 mgmt = (struct ieee80211_mgmt *) data;
2540 fc = le_to_host16(mgmt->frame_control);
2541
2542 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
2543 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) {
2544 /*
2545 * Only one of the authentication frame types is encrypted.
2546 * In order for static WEP encryption to work properly (i.e.,
2547 * to not encrypt the frame), we need to tell mac80211 about
2548 * the frames that must not be encrypted.
2549 */
2550 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
2551 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction);
7a47d567
JB		 2552 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3)
2553 encrypt = 0;
2c2010ac
JM		 2554 }
2555
7a47d567 2556 return wpa_driver_nl80211_send_frame(drv, data, data_len, encrypt);
2c2010ac
JM		 2557}
2558
5d674872
JM		 2559#endif /* CONFIG_AP || HOSTAPD */
2560
2c2010ac 2561
5d674872
JM		 2562static int wpa_driver_nl80211_set_beacon(const char *ifname, void *priv,
2563 const u8 *head, size_t head_len,
2564 const u8 *tail, size_t tail_len,
2565 int dtim_period, int beacon_int)
d2440ba0
JM		 2566{
2567 struct wpa_driver_nl80211_data *drv = priv;
2568 struct nl_msg *msg;
2569 u8 cmd = NL80211_CMD_NEW_BEACON;
2570 int ret;
b4fd6fab 2571 int beacon_set;
5d674872 2572 int ifindex = if_nametoindex(ifname);
b4fd6fab
JM		 2573#ifdef HOSTAPD
2574 struct i802_bss *bss;
2575
2576 bss = get_bss(drv, ifindex);
2577 if (bss == NULL)
2578 return -ENOENT;
2579 beacon_set = bss->beacon_set;
2580#else /* HOSTAPD */
2581 beacon_set = drv->beacon_set;
2582#endif /* HOSTAPD */
d2440ba0
JM		 2583
2584 msg = nlmsg_alloc();
2585 if (!msg)
2586 return -ENOMEM;
2587
2588 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)",
b4fd6fab
JM		 2589 beacon_set);
2590 if (beacon_set)
d2440ba0
JM		 2591 cmd = NL80211_CMD_SET_BEACON;
2592
2593 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2594 0, cmd, 0);
2595 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, head_len, head);
2596 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, tail_len, tail);
b4fd6fab 2597 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
5d674872 2598 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, beacon_int);
d2440ba0
JM		 2599 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, dtim_period);
2600
2601 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2602 if (ret) {
2603 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)",
2604 ret, strerror(-ret));
b4fd6fab
JM		 2605 } else {
2606#ifdef HOSTAPD
2607 bss->beacon_set = 1;
2608#else /* HOSTAPD */
d2440ba0 2609 drv->beacon_set = 1;
b4fd6fab
JM		 2610#endif /* HOSTAPD */
2611 }
d2440ba0
JM		 2612 return ret;
2613 nla_put_failure:
2614 return -ENOBUFS;
2615}
2616
2617
5d674872 2618#if defined(CONFIG_AP) || defined(HOSTAPD)
d2440ba0 2619
f019981a
JM		 2620static int wpa_driver_nl80211_set_freq(struct wpa_driver_nl80211_data *drv,
2621 int freq, int ht_enabled,
2622 int sec_channel_offset)
1581b38b
JM		 2623{
2624 struct nl_msg *msg;
d2440ba0 2625 int ret;
1581b38b
JM		 2626
2627 msg = nlmsg_alloc();
2628 if (!msg)
2629 return -1;
2630
2631 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
2632 NL80211_CMD_SET_WIPHY, 0);
2633
2634 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
f019981a
JM		 2635 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
2636 if (ht_enabled) {
2637 switch (sec_channel_offset) {
2638 case -1:
2639 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2640 NL80211_CHAN_HT40MINUS);
2641 break;
2642 case 1:
2643 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2644 NL80211_CHAN_HT40PLUS);
2645 break;
2646 default:
2647 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2648 NL80211_CHAN_HT20);
2649 break;
2650 }
2651 }
1581b38b 2652
d2440ba0
JM		 2653 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2654 if (ret == 0)
1581b38b 2655 return 0;
f019981a
JM		 2656 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): "
2657 "%d (%s)", freq, ret, strerror(-ret));
1581b38b
JM		 2658nla_put_failure:
2659 return -1;
2660}
2661
0f4e8b4f
JM		 2662
2663static int wpa_driver_nl80211_sta_add(const char *ifname, void *priv,
2664 struct hostapd_sta_add_params *params)
2665{
2666 struct wpa_driver_nl80211_data *drv = priv;
2667 struct nl_msg *msg;
2668 int ret = -ENOBUFS;
2669
2670 msg = nlmsg_alloc();
2671 if (!msg)
2672 return -ENOMEM;
2673
2674 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2675 0, NL80211_CMD_NEW_STATION, 0);
2676
2677 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(ifname));
2678 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr);
2679 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid);
2680 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len,
2681 params->supp_rates);
2682 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL,
2683 params->listen_interval);
0f4e8b4f
JM		 2684 if (params->ht_capabilities) {
2685 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY,
fc4e2d95
JM		 2686 sizeof(*params->ht_capabilities),
2687 params->ht_capabilities);
0f4e8b4f 2688 }
0f4e8b4f
JM		 2689
2690 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2691 if (ret)
2692 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_NEW_STATION "
2693 "result: %d (%s)", ret, strerror(-ret));
2694 if (ret == -EEXIST)
2695 ret = 0;
2696 nla_put_failure:
2697 return ret;
2698}
2699
2700
2701static int wpa_driver_nl80211_sta_remove(void *priv, const u8 *addr)
2702{
2703 struct wpa_driver_nl80211_data *drv = priv;
2704 struct nl_msg *msg;
2705 int ret;
2706
2707 msg = nlmsg_alloc();
2708 if (!msg)
2709 return -ENOMEM;
2710
2711 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2712 0, NL80211_CMD_DEL_STATION, 0);
2713
2714 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
2715 if_nametoindex(drv->ifname));
2716 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
2717
2718 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2719 if (ret == -ENOENT)
2720 return 0;
2721 return ret;
2722 nla_put_failure:
2723 return -ENOBUFS;
2724}
2725
1581b38b 2726
0915d02c
JM		 2727static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
2728 int ifidx)
2729{
2730 struct nl_msg *msg;
2731
2135f224
JM		 2732#ifdef HOSTAPD
2733 /* stop listening for EAPOL on this interface */
2734 del_ifidx(drv, ifidx);
2735#endif /* HOSTAPD */
2736
0915d02c
JM		 2737 msg = nlmsg_alloc();
2738 if (!msg)
2739 goto nla_put_failure;
2740
2741 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2742 0, NL80211_CMD_DEL_INTERFACE, 0);
2743 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx);
2744
2745 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
2746 return;
2747 nla_put_failure:
2748 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d).\n",
2749 ifidx);
2750}
2751
2752
a35187e7
KH		 2753static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv,
2754 const char *ifname,
2755 enum nl80211_iftype iftype,
2756 const u8 *addr)
0915d02c
JM		 2757{
2758 struct nl_msg *msg, *flags = NULL;
2759 int ifidx;
2760 int ret = -ENOBUFS;
2761
2762 msg = nlmsg_alloc();
2763 if (!msg)
2764 return -1;
2765
2766 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2767 0, NL80211_CMD_NEW_INTERFACE, 0);
2768 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2769 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname);
2770 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype);
2771
2772 if (iftype == NL80211_IFTYPE_MONITOR) {
2773 int err;
2774
2775 flags = nlmsg_alloc();
2776 if (!flags)
2777 goto nla_put_failure;
2778
2779 NLA_PUT_FLAG(flags, NL80211_MNTR_FLAG_COOK_FRAMES);
2780
2781 err = nla_put_nested(msg, NL80211_ATTR_MNTR_FLAGS, flags);
2782
2783 nlmsg_free(flags);
2784
2785 if (err)
2786 goto nla_put_failure;
2787 }
2788
2789 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2790 if (ret) {
2791 nla_put_failure:
a35187e7
KH		 2792 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)",
2793 ifname, ret, strerror(-ret));
0915d02c
JM		 2794 return ret;
2795 }
2796
2797 ifidx = if_nametoindex(ifname);
2798
2799 if (ifidx <= 0)
2800 return -1;
2801
2135f224
JM		 2802#ifdef HOSTAPD
2803 /* start listening for EAPOL on this interface */
2804 add_ifidx(drv, ifidx);
2805
41d931ee
JM		 2806 if (addr && iftype == NL80211_IFTYPE_AP &&
2807 set_ifhwaddr(drv, ifname, addr)) {
2808 nl80211_remove_iface(drv, ifidx);
2809 return -1;
2135f224
JM		 2810 }
2811#endif /* HOSTAPD */
2812
0915d02c
JM		 2813 return ifidx;
2814}
a35187e7
KH		 2815static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
2816 const char *ifname, enum nl80211_iftype iftype,
2817 const u8 *addr)
2818{
2819 int ret;
2820
2821 ret = nl80211_create_iface_once(drv, ifname, iftype, addr);
2822
2823 /* if error occured and interface exists already */
2824 if (ret == -ENFILE && if_nametoindex(ifname)) {
2825 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname);
2826
2827 /* Try to remove the interface that was already there. */
2828 nl80211_remove_iface(drv, if_nametoindex(ifname));
2829
2830 /* Try to create the interface again */
2831 ret = nl80211_create_iface_once(drv, ifname, iftype, addr);
2832 }
2833
2834 return ret;
2835}
0915d02c 2836
2135f224
JM		 2837#endif /* CONFIG_AP || HOSTAPD */
2838
2839#ifdef CONFIG_AP
0915d02c 2840
0915d02c
JM		 2841void ap_tx_status(void *ctx, const u8 *addr,
2842 const u8 *buf, size_t len, int ack);
3a57305f 2843void ap_rx_from_unknown_sta(void *ctx, struct ieee80211_hdr *hdr, size_t len);
0915d02c
JM		 2844void ap_mgmt_rx(void *ctx, u8 *buf, size_t len, u16 stype,
2845 struct hostapd_frame_info *fi);
2846void ap_mgmt_tx_cb(void *ctx, u8 *buf, size_t len, u16 stype, int ok);
2847
072ad14c
JM		 2848#endif /* CONFIG_AP */
2849
2850#if defined(CONFIG_AP) || defined(HOSTAPD)
0915d02c
JM		 2851
2852static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok)
2853{
2854 struct ieee80211_hdr *hdr;
2855 u16 fc, type, stype;
2856
2857 hdr = (struct ieee80211_hdr *) buf;
2858 fc = le_to_host16(hdr->frame_control);
2859
2860 type = WLAN_FC_GET_TYPE(fc);
2861 stype = WLAN_FC_GET_STYPE(fc);
2862
2863 switch (type) {
2864 case WLAN_FC_TYPE_MGMT:
2865 wpa_printf(MSG_DEBUG, "MGMT (TX callback) %s",
2866 ok ? "ACK" : "fail");
072ad14c
JM		 2867#ifdef HOSTAPD
2868 hostapd_mgmt_tx_cb(ctx, buf, len, stype, ok);
2869#else /* HOSTAPD */
0915d02c 2870 ap_mgmt_tx_cb(ctx, buf, len, stype, ok);
072ad14c 2871#endif /* HOSTAPD */
0915d02c
JM		 2872 break;
2873 case WLAN_FC_TYPE_CTRL:
2874 wpa_printf(MSG_DEBUG, "CTRL (TX callback) %s",
2875 ok ? "ACK" : "fail");
2876 break;
2877 case WLAN_FC_TYPE_DATA:
072ad14c
JM		 2878#ifdef HOSTAPD
2879 hostapd_tx_status(ctx, hdr->addr1, buf, len, ok);
2880#else /* HOSTAPD */
0915d02c 2881 ap_tx_status(ctx, hdr->addr1, buf, len, ok);
072ad14c 2882#endif /* HOSTAPD */
0915d02c
JM		 2883 break;
2884 default:
2885 wpa_printf(MSG_DEBUG, "unknown TX callback frame type %d",
2886 type);
2887 break;
2888 }
2889}
2890
2891
4b9841d3
JM		 2892static void from_unknown_sta(struct wpa_driver_nl80211_data *drv,
2893 struct ieee80211_hdr *hdr, size_t len)
0915d02c 2894{
7da3abe7 2895#ifdef HOSTAPD
4b9841d3
JM		 2896 hostapd_rx_from_unknown_sta(drv->ctx, hdr, len);
2897#else /* HOSTAPD */
3a57305f 2898 ap_rx_from_unknown_sta(drv->ctx, hdr, len);
7da3abe7 2899#endif /* HOSTAPD */
4b9841d3 2900}
0915d02c 2901
4b9841d3
JM		 2902
2903static void handle_frame(struct wpa_driver_nl80211_data *drv,
2904 u8 *buf, size_t len,
2905 struct hostapd_frame_info *hfi)
2906{
2907 struct ieee80211_hdr *hdr;
2908 u16 fc, stype;
0915d02c
JM		 2909
2910 hdr = (struct ieee80211_hdr *) buf;
2911 fc = le_to_host16(hdr->frame_control);
0915d02c
JM		 2912 stype = WLAN_FC_GET_STYPE(fc);
2913
4b9841d3 2914 switch (WLAN_FC_GET_TYPE(fc)) {
0915d02c
JM		 2915 case WLAN_FC_TYPE_MGMT:
2916 if (stype != WLAN_FC_STYPE_BEACON &&
2917 stype != WLAN_FC_STYPE_PROBE_REQ)
2918 wpa_printf(MSG_MSGDUMP, "MGMT");
7da3abe7 2919#ifdef HOSTAPD
4b9841d3 2920 hostapd_mgmt_rx(drv->ctx, buf, len, stype, hfi);
7da3abe7 2921#else /* HOSTAPD */
4b9841d3 2922 ap_mgmt_rx(drv->ctx, buf, len, stype, hfi);
7da3abe7 2923#endif /* HOSTAPD */
0915d02c
JM		 2924 break;
2925 case WLAN_FC_TYPE_CTRL:
2926 /* can only get here with PS-Poll frames */
2927 wpa_printf(MSG_DEBUG, "CTRL");
4b9841d3 2928 from_unknown_sta(drv, hdr, len);
0915d02c
JM		 2929 break;
2930 case WLAN_FC_TYPE_DATA:
4b9841d3 2931 from_unknown_sta(drv, hdr, len);
0915d02c
JM		 2932 break;
2933 }
2934}
2935
2936
2937static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx)
2938{
2939 struct wpa_driver_nl80211_data *drv = eloop_ctx;
2940 int len;
2941 unsigned char buf[3000];
2942 struct ieee80211_radiotap_iterator iter;
2943 int ret;
2944 struct hostapd_frame_info hfi;
4b9841d3 2945 int injected = 0, failed = 0, rxflags = 0;
0915d02c
JM		 2946
2947 len = recv(sock, buf, sizeof(buf), 0);
2948 if (len < 0) {
2949 perror("recv");
2950 return;
2951 }
2952
2953 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) {
2954 printf("received invalid radiotap frame\n");
2955 return;
2956 }
2957
2958 memset(&hfi, 0, sizeof(hfi));
2959
2960 while (1) {
2961 ret = ieee80211_radiotap_iterator_next(&iter);
2962 if (ret == -ENOENT)
2963 break;
2964 if (ret) {
2965 printf("received invalid radiotap frame (%d)\n", ret);
2966 return;
2967 }
2968 switch (iter.this_arg_index) {
2969 case IEEE80211_RADIOTAP_FLAGS:
2970 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS)
2971 len -= 4;
2972 break;
2973 case IEEE80211_RADIOTAP_RX_FLAGS:
2974 rxflags = 1;
2975 break;
2976 case IEEE80211_RADIOTAP_TX_FLAGS:
2977 injected = 1;
2978 failed = le_to_host16((*(uint16_t *) iter.this_arg)) &
2979 IEEE80211_RADIOTAP_F_TX_FAIL;
2980 break;
2981 case IEEE80211_RADIOTAP_DATA_RETRIES:
2982 break;
2983 case IEEE80211_RADIOTAP_CHANNEL:
2984 /* TODO convert from freq/flags to channel number
2985 hfi.channel = XXX;
2986 hfi.phytype = XXX;
2987 */
2988 break;
2989 case IEEE80211_RADIOTAP_RATE:
2990 hfi.datarate = *iter.this_arg * 5;
2991 break;
2992 case IEEE80211_RADIOTAP_DB_ANTSIGNAL:
2993 hfi.ssi_signal = *iter.this_arg;
2994 break;
2995 }
2996 }
2997
2998 if (rxflags && injected)
2999 return;
3000
3001 if (!injected)
4b9841d3
JM		 3002 handle_frame(drv, buf + iter.max_length,
3003 len - iter.max_length, &hfi);
0915d02c 3004 else
4b9841d3
JM		 3005 handle_tx_callback(drv->ctx, buf + iter.max_length,
3006 len - iter.max_length, !failed);
0915d02c
JM		 3007}
3008
3009
3010/*
3011 * we post-process the filter code later and rewrite
3012 * this to the offset to the last instruction
3013 */
3014#define PASS 0xFF
3015#define FAIL 0xFE
3016
3017static struct sock_filter msock_filter_insns[] = {
3018 /*
3019 * do a little-endian load of the radiotap length field
3020 */
3021 /* load lower byte into A */
3022 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2),
3023 /* put it into X (== index register) */
3024 BPF_STMT(BPF_MISC| BPF_TAX, 0),
3025 /* load upper byte into A */
3026 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3),
3027 /* left-shift it by 8 */
3028 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8),
3029 /* or with X */
3030 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0),
3031 /* put result into X */
3032 BPF_STMT(BPF_MISC| BPF_TAX, 0),
3033
3034 /*
3035 * Allow management frames through, this also gives us those
3036 * management frames that we sent ourselves with status
3037 */
3038 /* load the lower byte of the IEEE 802.11 frame control field */
3039 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
3040 /* mask off frame type and version */
3041 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF),
3042 /* accept frame if it's both 0, fall through otherwise */
3043 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0),
3044
3045 /*
3046 * TODO: add a bit to radiotap RX flags that indicates
3047 * that the sending station is not associated, then
3048 * add a filter here that filters on our DA and that flag
3049 * to allow us to deauth frames to that bad station.
3050 *
3051 * Not a regression -- we didn't do it before either.
3052 */
3053
3054#if 0
3055 /*
3056 * drop non-data frames, WDS frames
3057 */
3058 /* load the lower byte of the frame control field */
3059 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
3060 /* mask off QoS bit */
3061 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c),
3062 /* drop non-data frames */
3063 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL),
3064 /* load the upper byte of the frame control field */
3065 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
3066 /* mask off toDS/fromDS */
3067 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03),
3068 /* drop WDS frames */
3069 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, FAIL, 0),
3070#endif
3071
3072 /*
3073 * add header length to index
3074 */
3075 /* load the lower byte of the frame control field */
3076 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
3077 /* mask off QoS bit */
3078 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80),
3079 /* right shift it by 6 to give 0 or 2 */
3080 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6),
3081 /* add data frame header length */
3082 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24),
3083 /* add index, was start of 802.11 header */
3084 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0),
3085 /* move to index, now start of LL header */
3086 BPF_STMT(BPF_MISC | BPF_TAX, 0),
3087
3088 /*
3089 * Accept empty data frames, we use those for
3090 * polling activity.
3091 */
3092 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0),
3093 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0),
3094
3095 /*
3096 * Accept EAPOL frames
3097 */
3098 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0),
3099 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL),
3100 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4),
3101 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL),
3102
3103 /* keep these last two statements or change the code below */
3104 /* return 0 == "DROP" */
3105 BPF_STMT(BPF_RET | BPF_K, 0),
3106 /* return ~0 == "keep all" */
3107 BPF_STMT(BPF_RET | BPF_K, ~0),
3108};
3109
3110static struct sock_fprog msock_filter = {
3111 .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]),
3112 .filter = msock_filter_insns,
3113};
3114
3115
3116static int add_monitor_filter(int s)
3117{
3118 int idx;
3119
3120 /* rewrite all PASS/FAIL jump offsets */
3121 for (idx = 0; idx < msock_filter.len; idx++) {
3122 struct sock_filter *insn = &msock_filter_insns[idx];
3123
3124 if (BPF_CLASS(insn->code) == BPF_JMP) {
3125 if (insn->code == (BPF_JMP|BPF_JA)) {
3126 if (insn->k == PASS)
3127 insn->k = msock_filter.len - idx - 2;
3128 else if (insn->k == FAIL)
3129 insn->k = msock_filter.len - idx - 3;
3130 }
3131
3132 if (insn->jt == PASS)
3133 insn->jt = msock_filter.len - idx - 2;
3134 else if (insn->jt == FAIL)
3135 insn->jt = msock_filter.len - idx - 3;
3136
3137 if (insn->jf == PASS)
3138 insn->jf = msock_filter.len - idx - 2;
3139 else if (insn->jf == FAIL)
3140 insn->jf = msock_filter.len - idx - 3;
3141 }
3142 }
3143
3144 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER,
3145 &msock_filter, sizeof(msock_filter))) {
3146 perror("SO_ATTACH_FILTER");
3147 return -1;
3148 }
3149
3150 return 0;
3151}
3152
3153
460456f8
JM		 3154static void nl80211_remove_monitor_interface(
3155 struct wpa_driver_nl80211_data *drv)
3156{
3157 if (drv->monitor_ifidx >= 0) {
3158 nl80211_remove_iface(drv, drv->monitor_ifidx);
3159 drv->monitor_ifidx = -1;
3160 }
3161}
3162
3163
0915d02c
JM		 3164static int
3165nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv)
3166{
3167 char buf[IFNAMSIZ];
3168 struct sockaddr_ll ll;
3169 int optval;
3170 socklen_t optlen;
0915d02c
JM		 3171
3172 snprintf(buf, IFNAMSIZ, "mon.%s", drv->ifname);
3173 buf[IFNAMSIZ - 1] = '\0';
3174
3175 drv->monitor_ifidx =
2135f224 3176 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL);
0915d02c
JM		 3177
3178 if (drv->monitor_ifidx < 0)
3179 return -1;
3180
2135f224 3181 if (hostapd_set_iface_flags(drv, buf, 1))
0915d02c 3182 goto error;
0915d02c
JM		 3183
3184 memset(&ll, 0, sizeof(ll));
3185 ll.sll_family = AF_PACKET;
3186 ll.sll_ifindex = drv->monitor_ifidx;
3187 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
3188 if (drv->monitor_sock < 0) {
3189 perror("socket[PF_PACKET,SOCK_RAW]");
3190 goto error;
3191 }
3192
3193 if (add_monitor_filter(drv->monitor_sock)) {
3194 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor "
3195 "interface; do filtering in user space");
3196 /* This works, but will cost in performance. */
3197 }
3198
2135f224 3199 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) {
0915d02c
JM		 3200 perror("monitor socket bind");
3201 goto error;
3202 }
3203
3204 optlen = sizeof(optval);
3205 optval = 20;
3206 if (setsockopt
3207 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) {
3208 perror("Failed to set socket priority");
3209 goto error;
3210 }
3211
3212 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read,
3213 drv, NULL)) {
3214 printf("Could not register monitor read socket\n");
3215 goto error;
3216 }
3217
3218 return 0;
3219 error:
460456f8 3220 nl80211_remove_monitor_interface(drv);
0915d02c
JM		 3221 return -1;
3222}
3223
db149ac9
JM		 3224
3225static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
3226
3227static int wpa_driver_nl80211_hapd_send_eapol(
3228 void *priv, const u8 *addr, const u8 *data,
3229 size_t data_len, int encrypt, const u8 *own_addr)
3230{
3231 struct wpa_driver_nl80211_data *drv = priv;
3232 struct ieee80211_hdr *hdr;
3233 size_t len;
3234 u8 *pos;
3235 int res;
3236#if 0 /* FIX */
3237 int qos = sta->flags & WLAN_STA_WME;
3238#else
3239 int qos = 0;
3240#endif
3241
3242 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 +
3243 data_len;
3244 hdr = os_zalloc(len);
3245 if (hdr == NULL) {
3246 printf("malloc() failed for i802_send_data(len=%lu)\n",
3247 (unsigned long) len);
3248 return -1;
3249 }
3250
3251 hdr->frame_control =
3252 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA);
3253 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS);
3254 if (encrypt)
3255 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP);
3256#if 0 /* To be enabled if qos determination is added above */
3257 if (qos) {
3258 hdr->frame_control |=
3259 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4);
3260 }
3261#endif
3262
3263 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN);
3264 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
3265 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
3266 pos = (u8 *) (hdr + 1);
3267
3268#if 0 /* To be enabled if qos determination is added above */
3269 if (qos) {
3270 /* add an empty QoS header if needed */
3271 pos[0] = 0;
3272 pos[1] = 0;
3273 pos += 2;
3274 }
3275#endif
3276
3277 memcpy(pos, rfc1042_header, sizeof(rfc1042_header));
3278 pos += sizeof(rfc1042_header);
3279 WPA_PUT_BE16(pos, ETH_P_PAE);
3280 pos += 2;
3281 memcpy(pos, data, data_len);
3282
3283 res = wpa_driver_nl80211_send_frame(drv, (u8 *) hdr, len, encrypt);
3284 if (res < 0) {
3285 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - "
3286 "failed: %d (%s)",
3287 (unsigned long) len, errno, strerror(errno));
3288 }
3289 free(hdr);
3290
3291 return res;
3292}
3293
a8d6ffa4 3294
7e76ee9c
JM		 3295static u32 sta_flags_nl80211(int flags)
3296{
3297 u32 f = 0;
3298
3299 if (flags & WLAN_STA_AUTHORIZED)
3300 f |= BIT(NL80211_STA_FLAG_AUTHORIZED);
3301 if (flags & WLAN_STA_WMM)
3302 f |= BIT(NL80211_STA_FLAG_WME);
3303 if (flags & WLAN_STA_SHORT_PREAMBLE)
3304 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
3305 if (flags & WLAN_STA_MFP)
3306 f |= BIT(NL80211_STA_FLAG_MFP);
3307
3308 return f;
3309}
3310
3311
a8d6ffa4
JM		 3312static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr,
3313 int total_flags, int flags_or,
3314 int flags_and)
3315{
3316 struct wpa_driver_nl80211_data *drv = priv;
3317 struct nl_msg *msg, *flags = NULL;
7e76ee9c 3318 struct nl80211_sta_flag_update upd;
a8d6ffa4
JM		 3319
3320 msg = nlmsg_alloc();
3321 if (!msg)
3322 return -ENOMEM;
3323
3324 flags = nlmsg_alloc();
3325 if (!flags) {
3326 nlmsg_free(msg);
3327 return -ENOMEM;
3328 }
3329
3330 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3331 0, NL80211_CMD_SET_STATION, 0);
3332
3333 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
3334 if_nametoindex(drv->ifname));
3335 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
3336
7e76ee9c
JM		 3337 /*
3338 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This
3339 * can be removed eventually.
3340 */
a8d6ffa4
JM		 3341 if (total_flags & WLAN_STA_AUTHORIZED)
3342 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_AUTHORIZED);
3343
3344 if (total_flags & WLAN_STA_WMM)
3345 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_WME);
3346
3347 if (total_flags & WLAN_STA_SHORT_PREAMBLE)
3348 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_SHORT_PREAMBLE);
3349
3350 if (total_flags & WLAN_STA_MFP)
3351 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_MFP);
3352
3353 if (nla_put_nested(msg, NL80211_ATTR_STA_FLAGS, flags))
3354 goto nla_put_failure;
3355
7e76ee9c
JM		 3356 os_memset(&upd, 0, sizeof(upd));
3357 upd.mask = sta_flags_nl80211(flags_or | ~flags_and);
3358 upd.set = sta_flags_nl80211(flags_or);
3359 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
3360
a8d6ffa4
JM		 3361 nlmsg_free(flags);
3362
3363 return send_and_recv_msgs(drv, msg, NULL, NULL);
3364 nla_put_failure:
3365 nlmsg_free(flags);
3366 return -ENOBUFS;
3367}
3368
2135f224
JM		 3369#endif /* CONFIG_AP || HOSTAPD */
3370
3371#ifdef CONFIG_AP
0915d02c 3372
1581b38b
JM		 3373static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv,
3374 struct wpa_driver_associate_params *params)
3375{
3376 if (wpa_driver_nl80211_set_mode(drv, params->mode) ||
f019981a 3377 wpa_driver_nl80211_set_freq(drv, params->freq, 0, 0)) {
460456f8 3378 nl80211_remove_monitor_interface(drv);
1581b38b 3379 return -1;
0915d02c 3380 }
1581b38b
JM		 3381
3382 /* TODO: setup monitor interface (and add code somewhere to remove this
3383 * when AP mode is stopped; associate with mode != 2 or drv_deinit) */
1581b38b
JM		 3384
3385 return 0;
3386}
3387#endif /* CONFIG_AP */
3388
3389
cfaab580
ZY		 3390static int wpa_driver_nl80211_connect(
3391 struct wpa_driver_nl80211_data *drv,
3392 struct wpa_driver_associate_params *params)
3393{
3394 struct nl_msg *msg;
3395 enum nl80211_auth_type type;
3396 int ret = 0;
3397
3398 msg = nlmsg_alloc();
3399 if (!msg)
3400 return -1;
3401
3402 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex);
3403 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
3404 NL80211_CMD_CONNECT, 0);
3405
3406 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3407 if (params->bssid) {
3408 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
3409 MAC2STR(params->bssid));
3410 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
3411 }
3412 if (params->freq) {
3413 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
3414 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
3415 }
3416 if (params->ssid) {
3417 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
3418 params->ssid, params->ssid_len);
3419 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
3420 params->ssid);
3421 if (params->ssid_len > sizeof(drv->ssid))
3422 goto nla_put_failure;
3423 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
3424 drv->ssid_len = params->ssid_len;
3425 }
3426 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
3427 if (params->wpa_ie)
3428 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
3429 params->wpa_ie);
3430
3431 if (params->auth_alg & AUTH_ALG_OPEN_SYSTEM)
3432 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
3433 else if (params->auth_alg & AUTH_ALG_SHARED_KEY)
3434 type = NL80211_AUTHTYPE_SHARED_KEY;
3435 else if (params->auth_alg & AUTH_ALG_LEAP)
3436 type = NL80211_AUTHTYPE_NETWORK_EAP;
3437 else if (params->auth_alg & AUTH_ALG_FT)
3438 type = NL80211_AUTHTYPE_FT;
3439 else
3440 goto nla_put_failure;
3441
3442 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
3443 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
3444
3445 if (params->wpa_ie && params->wpa_ie_len) {
3446 enum nl80211_wpa_versions ver;
3447
3448 if (params->wpa_ie[0] == WLAN_EID_RSN)
3449 ver = NL80211_WPA_VERSION_2;
3450 else
3451 ver = NL80211_WPA_VERSION_1;
3452
3453 wpa_printf(MSG_DEBUG, " * WPA Version %d", ver);
3454 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
3455 }
3456
3457 if (params->pairwise_suite != CIPHER_NONE) {
c1bb3e0a 3458 int cipher;
cfaab580
ZY		 3459
3460 switch (params->pairwise_suite) {
3461 case CIPHER_WEP40:
3462 cipher = WLAN_CIPHER_SUITE_WEP40;
3463 break;
3464 case CIPHER_WEP104:
3465 cipher = WLAN_CIPHER_SUITE_WEP104;
3466 break;
3467 case CIPHER_CCMP:
3468 cipher = WLAN_CIPHER_SUITE_CCMP;
3469 break;
3470 case CIPHER_TKIP:
3471 default:
3472 cipher = WLAN_CIPHER_SUITE_TKIP;
3473 break;
3474 }
3475 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
3476 }
3477
3478 if (params->group_suite != CIPHER_NONE) {
c1bb3e0a 3479 int cipher;
cfaab580
ZY		 3480
3481 switch (params->group_suite) {
3482 case CIPHER_WEP40:
3483 cipher = WLAN_CIPHER_SUITE_WEP40;
3484 break;
3485 case CIPHER_WEP104:
3486 cipher = WLAN_CIPHER_SUITE_WEP104;
3487 break;
3488 case CIPHER_CCMP:
3489 cipher = WLAN_CIPHER_SUITE_CCMP;
3490 break;
3491 case CIPHER_TKIP:
3492 default:
3493 cipher = WLAN_CIPHER_SUITE_TKIP;
3494 break;
3495 }
3496 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
3497 }
3498
3499 if (params->key_mgmt_suite == KEY_MGMT_802_1X ||
3500 params->key_mgmt_suite == KEY_MGMT_PSK) {
3501 int mgmt = WLAN_AKM_SUITE_PSK;
3502
3503 switch (params->key_mgmt_suite) {
3504 case KEY_MGMT_802_1X:
3505 mgmt = WLAN_AKM_SUITE_8021X;
3506 break;
3507 case KEY_MGMT_PSK:
3508 default:
3509 mgmt = WLAN_AKM_SUITE_PSK;
3510 break;
3511 }
3512 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt);
3513 }
3514
3515 ret = nl80211_set_conn_keys(params, msg);
3516 if (ret)
3517 goto nla_put_failure;
3518
3519 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3520 msg = NULL;
3521 if (ret) {
3522 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d "
3523 "(%s)", ret, strerror(-ret));
3524 goto nla_put_failure;
3525 }
3526 ret = 0;
3527 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully");
3528
3529nla_put_failure:
3530 nlmsg_free(msg);
3531 return ret;
3532
3533}
3534
3535
c2a04078
JM		 3536static int wpa_driver_nl80211_associate(
3537 void *priv, struct wpa_driver_associate_params *params)
3538{
3539 struct wpa_driver_nl80211_data *drv = priv;
3540 int ret = -1;
3541 struct nl_msg *msg;
3542
1581b38b
JM		 3543#ifdef CONFIG_AP
3544 if (params->mode == 2)
3545 return wpa_driver_nl80211_ap(drv, params);
3546#endif /* CONFIG_AP */
3547
4a867032
JM		 3548 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) {
3549 if (wpa_driver_nl80211_set_mode(drv, params->mode) < 0)
3550 return -1;
cfaab580 3551 return wpa_driver_nl80211_connect(drv, params);
4a867032 3552 }
cfaab580 3553
c2a04078
JM		 3554 drv->associated = 0;
3555
3556 msg = nlmsg_alloc();
3557 if (!msg)
3558 return -1;
3559
3560 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)",
3561 drv->ifindex);
3562 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
3563 NL80211_CMD_ASSOCIATE, 0);
3564
3565 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3566 if (params->bssid) {
3567 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
3568 MAC2STR(params->bssid));
3569 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
3570 }
3571 if (params->freq) {
3572 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
3573 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
3574 }
3575 if (params->ssid) {
3576 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
3577 params->ssid, params->ssid_len);
3578 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
3579 params->ssid);
fd05d64e
JM		 3580 if (params->ssid_len > sizeof(drv->ssid))
3581 goto nla_put_failure;
3582 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
3583 drv->ssid_len = params->ssid_len;
c2a04078
JM		 3584 }
3585 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
3586 if (params->wpa_ie)
3587 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
3588 params->wpa_ie);
3589
e572fa33
JM		 3590#ifdef CONFIG_IEEE80211W
3591 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED)
3592 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED);
3593#endif /* CONFIG_IEEE80211W */
3594
01652550
JM		 3595 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
3596
62fa124c
JM		 3597 if (params->prev_bssid) {
3598 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR,
3599 MAC2STR(params->prev_bssid));
3600 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN,
3601 params->prev_bssid);
3602 }
3603
c2a04078
JM		 3604 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3605 msg = NULL;
3606 if (ret) {
3607 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
3608 "(%s)", ret, strerror(-ret));
3609 goto nla_put_failure;
3610 }
3611 ret = 0;
3612 wpa_printf(MSG_DEBUG, "nl80211: Association request send "
3613 "successfully");
3614
3615nla_put_failure:
3616 nlmsg_free(msg);
3617 return ret;
3618}
3f5285e8
JM		 3619
3620
ad1e68e6
JM		 3621static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv,
3622 int ifindex, int mode)
3f5285e8 3623{
3f5285e8 3624 struct nl_msg *msg;
ad1e68e6
JM		 3625 int ret = -ENOBUFS;
3626
3627 msg = nlmsg_alloc();
3628 if (!msg)
3629 return -ENOMEM;
3630
3631 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3632 0, NL80211_CMD_SET_INTERFACE, 0);
3633 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
3634 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode);
3635
3636 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3637 if (!ret)
3638 return 0;
3639nla_put_failure:
3640 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:"
3641 " %d (%s)", ifindex, mode, ret, strerror(-ret));
3642 return ret;
3643}
3644
3645
3646static int wpa_driver_nl80211_set_mode(void *priv, int mode)
3647{
3648 struct wpa_driver_nl80211_data *drv = priv;
3649 int ret = -1;
1581b38b
JM		 3650 int nlmode;
3651
3652 switch (mode) {
3653 case 0:
3654 nlmode = NL80211_IFTYPE_STATION;
3655 break;
3656 case 1:
3657 nlmode = NL80211_IFTYPE_ADHOC;
3658 break;
3659 case 2:
3660 nlmode = NL80211_IFTYPE_AP;
3661 break;
3662 default:
3663 return -1;
3664 }
3f5285e8 3665
ad1e68e6
JM		 3666 if (nl80211_set_mode(drv, drv->ifindex, nlmode) == 0) {
3667 drv->nlmode = nlmode;
460456f8
JM		 3668 ret = 0;
3669 goto done;
ad1e68e6 3670 }
3f5285e8 3671
460456f8
JM		 3672 if (nlmode == drv->nlmode) {
3673 ret = 0;
3674 goto done; /* Already in the requested mode */
3675 }
3f5285e8 3676
3f5285e8
JM		 3677 /* mac80211 doesn't allow mode changes while the device is up, so
3678 * take the device down, try to set the mode again, and bring the
3679 * device back up.
3680 */
2135f224 3681 if (hostapd_set_iface_flags(drv, drv->ifname, 0) == 0) {
3f5285e8 3682 /* Try to set the mode again while the interface is down */
ad1e68e6 3683 ret = nl80211_set_mode(drv, drv->ifindex, nlmode);
2135f224
JM		 3684 if (hostapd_set_iface_flags(drv, drv->ifname, 1))
3685 ret = -1;
3f5285e8
JM		 3686 }
3687
ad1e68e6
JM		 3688 if (!ret)
3689 drv->nlmode = nlmode;
3690
460456f8
JM		 3691done:
3692#if defined(CONFIG_AP) || defined(HOSTAPD)
3693 if (!ret && nlmode == NL80211_IFTYPE_AP) {
3694 /* Setup additional AP mode functionality if needed */
3695 if (drv->monitor_ifidx < 0 &&
3696 nl80211_create_monitor_interface(drv))
3697 return -1;
3698 } else if (!ret && nlmode != NL80211_IFTYPE_AP) {
3699 /* Remove additional AP mode functionality */
3700 nl80211_remove_monitor_interface(drv);
3701 }
3702#endif /* CONFIG_AP || HOSTAPD */
3703
3f5285e8
JM		 3704 return ret;
3705}
3706
3707
3f5285e8
JM		 3708static int wpa_driver_nl80211_get_capa(void *priv,
3709 struct wpa_driver_capa *capa)
3710{
3711 struct wpa_driver_nl80211_data *drv = priv;
3712 if (!drv->has_capability)
3713 return -1;
3714 os_memcpy(capa, &drv->capa, sizeof(*capa));
3715 return 0;
3716}
3717
3718
3719static int wpa_driver_nl80211_set_operstate(void *priv, int state)
3720{
3721 struct wpa_driver_nl80211_data *drv = priv;
3722
3723 wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)",
3724 __func__, drv->operstate, state, state ? "UP" : "DORMANT");
3725 drv->operstate = state;
3726 return wpa_driver_nl80211_send_oper_ifla(
3727 drv, -1, state ? IF_OPER_UP : IF_OPER_DORMANT);
3728}
3729
01652550
JM		 3730
3731static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized)
3732{
3733 struct wpa_driver_nl80211_data *drv = priv;
3734 struct nl_msg *msg;
3735 struct nl80211_sta_flag_update upd;
3736
3737 msg = nlmsg_alloc();
3738 if (!msg)
3739 return -ENOMEM;
3740
3741 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3742 0, NL80211_CMD_SET_STATION, 0);
3743
3744 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
3745 if_nametoindex(drv->ifname));
3746 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
3747
3748 os_memset(&upd, 0, sizeof(upd));
3749 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED);
3750 if (authorized)
3751 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED);
3752 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
3753
3754 return send_and_recv_msgs(drv, msg, NULL, NULL);
3755 nla_put_failure:
3756 return -ENOBUFS;
3757}
3758
3f5285e8 3759
c5121837
JM		 3760#ifdef HOSTAPD
3761
c5121837 3762static struct i802_bss * get_bss(struct wpa_driver_nl80211_data *drv,
b4fd6fab 3763 int ifindex)
c5121837
JM		 3764{
3765 struct i802_bss *bss = &drv->bss;
3766 while (bss) {
b4fd6fab 3767 if (ifindex == bss->ifindex)
c5121837
JM		 3768 return bss;
3769 bss = bss->next;
3770 }
b4fd6fab 3771 wpa_printf(MSG_DEBUG, "nl80211: get_bss(%d) failed", ifindex);
c5121837
JM		 3772 return NULL;
3773}
3774
3775
3776static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
3777{
3778 int i;
3779 int *old;
3780
3781 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d",
3782 ifidx);
3783 for (i = 0; i < drv->num_if_indices; i++) {
3784 if (drv->if_indices[i] == 0) {
3785 drv->if_indices[i] = ifidx;
3786 return;
3787 }
3788 }
3789
3790 if (drv->if_indices != drv->default_if_indices)
3791 old = drv->if_indices;
3792 else
3793 old = NULL;
3794
3795 drv->if_indices = realloc(old,
3796 sizeof(int) * (drv->num_if_indices + 1));
3797 if (!drv->if_indices) {
3798 if (!old)
3799 drv->if_indices = drv->default_if_indices;
3800 else
3801 drv->if_indices = old;
3802 wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
3803 "interfaces");
3804 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
3805 return;
3806 }
3807 drv->if_indices[drv->num_if_indices] = ifidx;
3808 drv->num_if_indices++;
3809}
3810
3811
3812static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
3813{
3814 int i;
3815
3816 for (i = 0; i < drv->num_if_indices; i++) {
3817 if (drv->if_indices[i] == ifidx) {
3818 drv->if_indices[i] = 0;
3819 break;
3820 }
3821 }
3822}
3823
3824
3825static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
3826{
3827 int i;
3828
3829 for (i = 0; i < drv->num_if_indices; i++)
3830 if (drv->if_indices[i] == ifidx)
3831 return 1;
3832
3833 return 0;
3834}
3835
3836
c5121837
JM		 3837static inline int min_int(int a, int b)
3838{
3839 if (a < b)
3840 return a;
3841 return b;
3842}
3843
3844
3845static int get_key_handler(struct nl_msg *msg, void *arg)
3846{
3847 struct nlattr *tb[NL80211_ATTR_MAX + 1];
3848 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3849
3850 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3851 genlmsg_attrlen(gnlh, 0), NULL);
3852
3853 /*
3854 * TODO: validate the key index and mac address!
3855 * Otherwise, there's a race condition as soon as
3856 * the kernel starts sending key notifications.
3857 */
3858
3859 if (tb[NL80211_ATTR_KEY_SEQ])
3860 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]),
3861 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6));
3862 return NL_SKIP;
3863}
3864
3865
3866static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
3867 int idx, u8 *seq)
3868{
3869 struct wpa_driver_nl80211_data *drv = priv;
3870 struct nl_msg *msg;
3871
3872 msg = nlmsg_alloc();
3873 if (!msg)
3874 return -ENOMEM;
3875
3876 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3877 0, NL80211_CMD_GET_KEY, 0);
3878
3879 if (addr)
3880 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
3881 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
3882 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
3883
3884 memset(seq, 0, 6);
3885
3886 return send_and_recv_msgs(drv, msg, get_key_handler, seq);
3887 nla_put_failure:
3888 return -ENOBUFS;
3889}
3890
3891
3892static int i802_set_rate_sets(void *priv, int *supp_rates, int *basic_rates,
3893 int mode)
3894{
3895 struct wpa_driver_nl80211_data *drv = priv;
3896 struct nl_msg *msg;
3897 u8 rates[NL80211_MAX_SUPP_RATES];
3898 u8 rates_len = 0;
3899 int i;
3900
3901 msg = nlmsg_alloc();
3902 if (!msg)
3903 return -ENOMEM;
3904
3905 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
3906 NL80211_CMD_SET_BSS, 0);
3907
3908 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; i++)
3909 rates[rates_len++] = basic_rates[i] / 5;
3910
3911 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates);
3912
3913 /* TODO: multi-BSS support */
3914 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->ifname));
3915
3916 return send_and_recv_msgs(drv, msg, NULL, NULL);
3917 nla_put_failure:
3918 return -ENOBUFS;
3919}
3920
3921
c5121837
JM		 3922/* Set kernel driver on given frequency (MHz) */
3923static int i802_set_freq(void *priv, struct hostapd_freq_params *freq)
3924{
3925 struct wpa_driver_nl80211_data *drv = priv;
f019981a
JM		 3926 return wpa_driver_nl80211_set_freq(drv, freq->freq, freq->ht_enabled,
3927 freq->sec_channel_offset);
c5121837
JM		 3928}
3929
3930
3931static int i802_set_rts(void *priv, int rts)
3932{
3933 struct wpa_driver_nl80211_data *drv = priv;
ad649451
JM		 3934 struct nl_msg *msg;
3935 int ret = -ENOBUFS;
3936 u32 val;
c5121837 3937
ad649451
JM		 3938 msg = nlmsg_alloc();
3939 if (!msg)
3940 return -ENOMEM;
c5121837 3941
ad649451
JM		 3942 if (rts >= 2347)
3943 val = (u32) -1;
3944 else
3945 val = rts;
c5121837 3946
ad649451
JM		 3947 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3948 0, NL80211_CMD_SET_WIPHY, 0);
3949 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3950 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val);
3951
3952 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3953 if (!ret)
3954 return 0;
3955nla_put_failure:
3956 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: "
3957 "%d (%s)", rts, ret, strerror(-ret));
3958 return ret;
c5121837
JM		 3959}
3960
3961
3962static int i802_set_frag(void *priv, int frag)
3963{
3964 struct wpa_driver_nl80211_data *drv = priv;
ad649451
JM		 3965 struct nl_msg *msg;
3966 int ret = -ENOBUFS;
3967 u32 val;
c5121837 3968
ad649451
JM		 3969 msg = nlmsg_alloc();
3970 if (!msg)
3971 return -ENOMEM;
c5121837 3972
ad649451
JM		 3973 if (frag >= 2346)
3974 val = (u32) -1;
3975 else
3976 val = frag;
c5121837 3977
ad649451
JM		 3978 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3979 0, NL80211_CMD_SET_WIPHY, 0);
3980 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3981 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val);
3982
3983 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3984 if (!ret)
3985 return 0;
3986nla_put_failure:
3987 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold "
3988 "%d: %d (%s)", frag, ret, strerror(-ret));
3989 return ret;
c5121837
JM		 3990}
3991
3992
c5121837
JM		 3993static int i802_flush(void *priv)
3994{
3995 struct wpa_driver_nl80211_data *drv = priv;
3996 struct nl_msg *msg;
3997
3998 msg = nlmsg_alloc();
3999 if (!msg)
4000 return -1;
4001
4002 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4003 0, NL80211_CMD_DEL_STATION, 0);
4004
4005 /*
4006 * XXX: FIX! this needs to flush all VLANs too
4007 */
4008 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
4009 if_nametoindex(drv->ifname));
4010
4011 return send_and_recv_msgs(drv, msg, NULL, NULL);
4012 nla_put_failure:
4013 return -ENOBUFS;
4014}
4015
4016
4017static int get_sta_handler(struct nl_msg *msg, void *arg)
4018{
4019 struct nlattr *tb[NL80211_ATTR_MAX + 1];
4020 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
4021 struct hostap_sta_driver_data *data = arg;
4022 struct nlattr *stats[NL80211_STA_INFO_MAX + 1];
4023 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
4024 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
4025 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
4026 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
4027 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
4028 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
4029 };
4030
4031 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
4032 genlmsg_attrlen(gnlh, 0), NULL);
4033
4034 /*
4035 * TODO: validate the interface and mac address!
4036 * Otherwise, there's a race condition as soon as
4037 * the kernel starts sending station notifications.
4038 */
4039
4040 if (!tb[NL80211_ATTR_STA_INFO]) {
4041 wpa_printf(MSG_DEBUG, "sta stats missing!");
4042 return NL_SKIP;
4043 }
4044 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX,
4045 tb[NL80211_ATTR_STA_INFO],
4046 stats_policy)) {
4047 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!");
4048 return NL_SKIP;
4049 }
4050
4051 if (stats[NL80211_STA_INFO_INACTIVE_TIME])
4052 data->inactive_msec =
4053 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]);
4054 if (stats[NL80211_STA_INFO_RX_BYTES])
4055 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]);
4056 if (stats[NL80211_STA_INFO_TX_BYTES])
4057 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]);
4058 if (stats[NL80211_STA_INFO_RX_PACKETS])
4059 data->rx_packets =
4060 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]);
4061 if (stats[NL80211_STA_INFO_TX_PACKETS])
4062 data->tx_packets =
4063 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]);
4064
4065 return NL_SKIP;
4066}
4067
4068static int i802_read_sta_data(void *priv, struct hostap_sta_driver_data *data,
4069 const u8 *addr)
4070{
4071 struct wpa_driver_nl80211_data *drv = priv;
4072 struct nl_msg *msg;
4073
4074 os_memset(data, 0, sizeof(*data));
4075 msg = nlmsg_alloc();
4076 if (!msg)
4077 return -ENOMEM;
4078
4079 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4080 0, NL80211_CMD_GET_STATION, 0);
4081
4082 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
4083 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->ifname));
4084
4085 return send_and_recv_msgs(drv, msg, get_sta_handler, data);
4086 nla_put_failure:
4087 return -ENOBUFS;
4088}
4089
4090
c5121837
JM		 4091static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
4092 int cw_min, int cw_max, int burst_time)
4093{
4094 struct wpa_driver_nl80211_data *drv = priv;
4095 struct nl_msg *msg;
4096 struct nlattr *txq, *params;
4097
4098 msg = nlmsg_alloc();
4099 if (!msg)
4100 return -1;
4101
4102 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4103 0, NL80211_CMD_SET_WIPHY, 0);
4104
4105 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->ifname));
4106
4107 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS);
4108 if (!txq)
4109 goto nla_put_failure;
4110
4111 /* We are only sending parameters for a single TXQ at a time */
4112 params = nla_nest_start(msg, 1);
4113 if (!params)
4114 goto nla_put_failure;
4115
4116 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, queue);
4117 /* Burst time is configured in units of 0.1 msec and TXOP parameter in
4118 * 32 usec, so need to convert the value here. */
4119 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32);
4120 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min);
4121 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max);
4122 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs);
4123
4124 nla_nest_end(msg, params);
4125
4126 nla_nest_end(msg, txq);
4127
4128 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
4129 return 0;
4130 nla_put_failure:
4131 return -1;
4132}
4133
4134
c5121837
JM		 4135static int i802_bss_add(void *priv, const char *ifname, const u8 *bssid)
4136{
4137 struct wpa_driver_nl80211_data *drv = priv;
4138 int ifidx;
4139 struct i802_bss *bss;
4140
4141 bss = os_zalloc(sizeof(*bss));
4142 if (bss == NULL)
4143 return -1;
c5121837
JM		 4144
4145 ifidx = nl80211_create_iface(priv, ifname, NL80211_IFTYPE_AP, bssid);
4146 if (ifidx < 0) {
4147 os_free(bss);
4148 return -1;
4149 }
6d550fbe 4150 bss->ifindex = ifidx;
c5121837
JM		 4151 if (hostapd_set_iface_flags(priv, ifname, 1)) {
4152 nl80211_remove_iface(priv, ifidx);
4153 os_free(bss);
4154 return -1;
4155 }
4156 bss->next = drv->bss.next;
4157 drv->bss.next = bss;
4158 return 0;
4159}
4160
4161
4162static int i802_bss_remove(void *priv, const char *ifname)
4163{
4164 struct wpa_driver_nl80211_data *drv = priv;
4165 struct i802_bss *bss, *prev;
b4fd6fab
JM		 4166 int ifindex = if_nametoindex(ifname);
4167 nl80211_remove_iface(priv, ifindex);
c5121837
JM		 4168 prev = &drv->bss;
4169 bss = drv->bss.next;
4170 while (bss) {
b4fd6fab 4171 if (ifindex == bss->ifindex) {
c5121837
JM		 4172 prev->next = bss->next;
4173 os_free(bss);
4174 break;
4175 }
4176 prev = bss;
4177 bss = bss->next;
4178 }
4179 return 0;
4180}
4181
4182
c5121837
JM		 4183static int i802_set_bss(void *priv, int cts, int preamble, int slot)
4184{
4185 struct wpa_driver_nl80211_data *drv = priv;
4186 struct nl_msg *msg;
4187
4188 msg = nlmsg_alloc();
4189 if (!msg)
4190 return -ENOMEM;
4191
4192 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
4193 NL80211_CMD_SET_BSS, 0);
4194
4195 if (cts >= 0)
4196 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts);
4197 if (preamble >= 0)
4198 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble);
4199 if (slot >= 0)
4200 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot);
4201
4202 /* TODO: multi-BSS support */
4203 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->ifname));
4204
4205 return send_and_recv_msgs(drv, msg, NULL, NULL);
4206 nla_put_failure:
4207 return -ENOBUFS;
4208}
4209
4210
4211static int i802_set_cts_protect(void *priv, int value)
4212{
4213 return i802_set_bss(priv, value, -1, -1);
4214}
4215
4216
4217static int i802_set_preamble(void *priv, int value)
4218{
4219 return i802_set_bss(priv, -1, value, -1);
4220}
4221
4222
4223static int i802_set_short_slot_time(void *priv, int value)
4224{
4225 return i802_set_bss(priv, -1, -1, value);
4226}
4227
4228
4229static enum nl80211_iftype i802_if_type(enum hostapd_driver_if_type type)
4230{
4231 switch (type) {
4232 case HOSTAPD_IF_VLAN:
4233 return NL80211_IFTYPE_AP_VLAN;
c5121837
JM		 4234 }
4235 return -1;
4236}
4237
4238
4239static int i802_if_add(const char *iface, void *priv,
4240 enum hostapd_driver_if_type type, char *ifname,
4241 const u8 *addr)
4242{
4243 if (nl80211_create_iface(priv, ifname, i802_if_type(type), addr) < 0)
4244 return -1;
4245 return 0;
4246}
4247
4248
4249static int i802_if_update(void *priv, enum hostapd_driver_if_type type,
4250 char *ifname, const u8 *addr)
4251{
4252 /* unused at the moment */
4253 return -1;
4254}
4255
4256
4257static int i802_if_remove(void *priv, enum hostapd_driver_if_type type,
4258 const char *ifname, const u8 *addr)
4259{
4260 nl80211_remove_iface(priv, if_nametoindex(ifname));
4261 return 0;
4262}
4263
4264
c5121837
JM		 4265static int i802_set_sta_vlan(void *priv, const u8 *addr,
4266 const char *ifname, int vlan_id)
4267{
4268 struct wpa_driver_nl80211_data *drv = priv;
4269 struct nl_msg *msg;
4270
4271 msg = nlmsg_alloc();
4272 if (!msg)
4273 return -ENOMEM;
4274
4275 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4276 0, NL80211_CMD_SET_STATION, 0);
4277
4278 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
4279 if_nametoindex(drv->ifname));
4280 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
1c766b09 4281 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN,
c5121837
JM		 4282 if_nametoindex(ifname));
4283
4284 return send_and_recv_msgs(drv, msg, NULL, NULL);
4285 nla_put_failure:
4286 return -ENOBUFS;
4287}
4288
4289
c5121837
JM		 4290static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
4291{
4292 struct wpa_driver_nl80211_data *drv = eloop_ctx;
4293 struct sockaddr_ll lladdr;
4294 unsigned char buf[3000];
4295 int len;
4296 socklen_t fromlen = sizeof(lladdr);
4297
4298 len = recvfrom(sock, buf, sizeof(buf), 0,
4299 (struct sockaddr *)&lladdr, &fromlen);
4300 if (len < 0) {
4301 perror("recv");
4302 return;
4303 }
4304
4305 if (have_ifidx(drv, lladdr.sll_ifindex)) {
4b9841d3
JM		 4306 void *ctx;
4307 ctx = hostapd_sta_get_bss(drv->ctx, lladdr.sll_addr);
4308 if (!ctx)
c5121837 4309 return;
4b9841d3 4310 hostapd_eapol_receive(ctx, lladdr.sll_addr, buf, len);
c5121837
JM		 4311 }
4312}
4313
4314
c5121837
JM		 4315static int i802_get_inact_sec(void *priv, const u8 *addr)
4316{
4317 struct hostap_sta_driver_data data;
4318 int ret;
4319
4320 data.inactive_msec = (unsigned long) -1;
4321 ret = i802_read_sta_data(priv, &data, addr);
4322 if (ret || data.inactive_msec == (unsigned long) -1)
4323 return -1;
4324 return data.inactive_msec / 1000;
4325}
4326
4327
4328static int i802_sta_clear_stats(void *priv, const u8 *addr)
4329{
4330#if 0
4331 /* TODO */
4332#endif
4333 return 0;
4334}
4335
4336
731723a5
JM		 4337static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
4338 int reason)
c5121837
JM		 4339{
4340 struct wpa_driver_nl80211_data *drv = priv;
4341 struct ieee80211_mgmt mgmt;
4342
4343 memset(&mgmt, 0, sizeof(mgmt));
4344 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
4345 WLAN_FC_STYPE_DEAUTH);
4346 memcpy(mgmt.da, addr, ETH_ALEN);
731723a5
JM		 4347 memcpy(mgmt.sa, own_addr, ETH_ALEN);
4348 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
c5121837 4349 mgmt.u.deauth.reason_code = host_to_le16(reason);
9f324b61
JM		 4350 return wpa_driver_nl80211_send_mlme(drv, (u8 *) &mgmt,
4351 IEEE80211_HDRLEN +
4352 sizeof(mgmt.u.deauth));
c5121837
JM		 4353}
4354
4355
731723a5
JM		 4356static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
4357 int reason)
c5121837
JM		 4358{
4359 struct wpa_driver_nl80211_data *drv = priv;
4360 struct ieee80211_mgmt mgmt;
4361
4362 memset(&mgmt, 0, sizeof(mgmt));
4363 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
4364 WLAN_FC_STYPE_DISASSOC);
4365 memcpy(mgmt.da, addr, ETH_ALEN);
731723a5
JM		 4366 memcpy(mgmt.sa, own_addr, ETH_ALEN);
4367 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
c5121837 4368 mgmt.u.disassoc.reason_code = host_to_le16(reason);
9f324b61
JM		 4369 return wpa_driver_nl80211_send_mlme(drv, (u8 *) &mgmt,
4370 IEEE80211_HDRLEN +
4371 sizeof(mgmt.u.disassoc));
c5121837
JM		 4372}
4373
4374
92f475b4
JM		 4375static void *i802_init(struct hostapd_data *hapd,
4376 struct wpa_init_params *params)
c5121837
JM		 4377{
4378 struct wpa_driver_nl80211_data *drv;
4379 size_t i;
4380
bbaf0837
JM		 4381 drv = wpa_driver_nl80211_init(hapd, params->ifname);
4382 if (drv == NULL)
c5121837 4383 return NULL;
c5121837 4384
b4fd6fab 4385 drv->bss.ifindex = drv->ifindex;
c5121837
JM		 4386
4387 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
4388 drv->if_indices = drv->default_if_indices;
92f475b4
JM		 4389 for (i = 0; i < params->num_bridge; i++) {
4390 if (params->bridge[i])
4391 add_ifidx(drv, if_nametoindex(params->bridge[i]));
c5121837 4392 }
c5121837 4393
ad1e68e6
JM		 4394 /* start listening for EAPOL on the default AP interface */
4395 add_ifidx(drv, drv->ifindex);
4396
6980c191
FF		 4397 if (hostapd_set_iface_flags(drv, drv->ifname, 0))
4398 goto failed;
ad1e68e6 4399
6980c191 4400 if (params->bssid) {
460456f8
JM		 4401 if (set_ifhwaddr(drv, drv->ifname, params->bssid))
4402 goto failed;
4403 }
ad1e68e6 4404
4a867032 4405 if (wpa_driver_nl80211_set_mode(drv, IEEE80211_MODE_AP)) {
ad1e68e6
JM		 4406 wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s "
4407 "into AP mode", drv->ifname);
bbaf0837 4408 goto failed;
ad1e68e6
JM		 4409 }
4410
4411 if (hostapd_set_iface_flags(drv, drv->ifname, 1))
bbaf0837 4412 goto failed;
ad1e68e6
JM		 4413
4414 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE));
4415 if (drv->eapol_sock < 0) {
4416 perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)");
bbaf0837 4417 goto failed;
ad1e68e6
JM		 4418 }
4419
4420 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL))
4421 {
4422 printf("Could not register read socket for eapol\n");
c5121837 4423 goto failed;
ad1e68e6
JM		 4424 }
4425
412036f5 4426 if (get_ifhwaddr(drv, drv->ifname, params->own_addr))
bbaf0837 4427 goto failed;
c5121837 4428
c5121837
JM		 4429 return drv;
4430
4431failed:
460456f8 4432 nl80211_remove_monitor_interface(drv);
c5121837
JM		 4433 if (drv->ioctl_sock >= 0)
4434 close(drv->ioctl_sock);
c5121837
JM		 4435
4436 genl_family_put(drv->nl80211);
4437 nl_cache_free(drv->nl_cache);
4438 nl_handle_destroy(drv->nl_handle);
4439 nl_cb_put(drv->nl_cb);
4440
bbaf0837
JM		 4441 os_free(drv);
4442 return NULL;
4443}
c5121837 4444
c5121837 4445
bbaf0837
JM		 4446static void i802_deinit(void *priv)
4447{
4448 wpa_driver_nl80211_deinit(priv);
c5121837
JM		 4449}
4450
4451#endif /* HOSTAPD */
4452
4453
3f5285e8
JM		 4454const struct wpa_driver_ops wpa_driver_nl80211_ops = {
4455 .name = "nl80211",
4456 .desc = "Linux nl80211/cfg80211",
4457 .get_bssid = wpa_driver_nl80211_get_bssid,
4458 .get_ssid = wpa_driver_nl80211_get_ssid,
3f5285e8 4459 .set_key = wpa_driver_nl80211_set_key,
6a1063e0 4460 .scan2 = wpa_driver_nl80211_scan,
3f5285e8
JM		 4461 .get_scan_results2 = wpa_driver_nl80211_get_scan_results,
4462 .deauthenticate = wpa_driver_nl80211_deauthenticate,
4463 .disassociate = wpa_driver_nl80211_disassociate,
c2a04078 4464 .authenticate = wpa_driver_nl80211_authenticate,
3f5285e8 4465 .associate = wpa_driver_nl80211_associate,
3f5285e8
JM		 4466 .init = wpa_driver_nl80211_init,
4467 .deinit = wpa_driver_nl80211_deinit,
3f5285e8
JM		 4468 .get_capa = wpa_driver_nl80211_get_capa,
4469 .set_operstate = wpa_driver_nl80211_set_operstate,
01652550 4470 .set_supp_port = wpa_driver_nl80211_set_supp_port,
6d158490 4471 .set_country = wpa_driver_nl80211_set_country,
d2440ba0 4472 .set_beacon = wpa_driver_nl80211_set_beacon,
c3965310 4473#if defined(CONFIG_AP) || defined(HOSTAPD)
071f8ac4 4474 .send_mlme = wpa_driver_nl80211_send_mlme,
c3965310 4475 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data,
0f4e8b4f
JM		 4476 .sta_add = wpa_driver_nl80211_sta_add,
4477 .sta_remove = wpa_driver_nl80211_sta_remove,
db149ac9 4478 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol,
a8d6ffa4 4479 .sta_set_flags = wpa_driver_nl80211_sta_set_flags,
c3965310 4480#endif /* CONFIG_AP || HOSTAPD */
c5121837
JM		 4481#ifdef HOSTAPD
4482 .hapd_init = i802_init,
c5121837 4483 .hapd_deinit = i802_deinit,
c5121837
JM		 4484 .get_seqnum = i802_get_seqnum,
4485 .flush = i802_flush,
4486 .read_sta_data = i802_read_sta_data,
c5121837
JM		 4487 .sta_deauth = i802_sta_deauth,
4488 .sta_disassoc = i802_sta_disassoc,
c5121837
JM		 4489 .get_inact_sec = i802_get_inact_sec,
4490 .sta_clear_stats = i802_sta_clear_stats,
4491 .set_freq = i802_set_freq,
4492 .set_rts = i802_set_rts,
4493 .set_frag = i802_set_frag,
c5121837 4494 .set_rate_sets = i802_set_rate_sets,
c5121837
JM		 4495 .set_cts_protect = i802_set_cts_protect,
4496 .set_preamble = i802_set_preamble,
4497 .set_short_slot_time = i802_set_short_slot_time,
4498 .set_tx_queue_params = i802_set_tx_queue_params,
4499 .bss_add = i802_bss_add,
4500 .bss_remove = i802_bss_remove,
4501 .if_add = i802_if_add,
4502 .if_update = i802_if_update,
4503 .if_remove = i802_if_remove,
c5121837 4504 .set_sta_vlan = i802_set_sta_vlan,
c5121837 4505#endif /* HOSTAPD */
3f5285e8 4506};
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