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Use C99 designated initializers to cleanup driver_ops setup
[thirdparty/hostap.git] / src / drivers / driver_nl80211.c
CommitLineData
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"
37b7d082 27#ifndef NO_WEXT
3f5285e8 28#include "wireless_copy.h"
37b7d082 29#endif /* NO_WEXT */
625f587b 30
3f5285e8
JM		 31#include "common.h"
32#include "driver.h"
33#include "eloop.h"
34#include "ieee802_11_defs.h"
35
c5121837 36#if defined(CONFIG_AP) || defined(HOSTAPD)
0915d02c
JM		 37#include <netpacket/packet.h>
38#include <linux/filter.h>
39#include "radiotap.h"
40#include "radiotap_iter.h"
c5121837 41
4b9841d3
JM		 42#include "../../hostapd/hostapd_defs.h"
43#endif /* CONFIG_AP || HOSTAPD */
0915d02c 44
c5121837 45#ifdef HOSTAPD
c5121837
JM		 46#include "../../hostapd/sta_flags.h"
47#include "ieee802_11_common.h"
48
49#ifdef CONFIG_LIBNL20
50/* libnl 2.0 compatibility code */
51#define nl_handle_alloc_cb nl_socket_alloc_cb
52#define nl_handle_destroy nl_socket_free
53#endif /* CONFIG_LIBNL20 */
54
55#endif /* HOSTAPD */
56
57
3f5285e8
JM		 58#ifndef IFF_LOWER_UP
59#define IFF_LOWER_UP 0x10000 /* driver signals L1 up */
60#endif
61#ifndef IFF_DORMANT
62#define IFF_DORMANT 0x20000 /* driver signals dormant */
63#endif
64
65#ifndef IF_OPER_DORMANT
66#define IF_OPER_DORMANT 5
67#endif
68#ifndef IF_OPER_UP
69#define IF_OPER_UP 6
70#endif
71
c5121837
JM		 72struct i802_bss {
73 struct i802_bss *next;
b4fd6fab 74 int ifindex;
c5121837
JM		 75 unsigned int beacon_set:1;
76};
3f5285e8
JM		 77
78struct wpa_driver_nl80211_data {
79 void *ctx;
d8816397 80 int link_event_sock;
c5121837 81 int ioctl_sock; /* socket for ioctl() use */
3f5285e8
JM		 82 char ifname[IFNAMSIZ + 1];
83 int ifindex;
7524cfb1 84 int if_removed;
c2a04078
JM		 85 struct wpa_driver_capa capa;
86 int has_capability;
c2a04078 87
3f5285e8
JM		 88 int operstate;
89
3f5285e8
JM		 90 int scan_complete_events;
91
92 struct nl_handle *nl_handle;
93 struct nl_cache *nl_cache;
94 struct nl_cb *nl_cb;
95 struct genl_family *nl80211;
1c873584 96
c2a04078
JM		 97 u8 bssid[ETH_ALEN];
98 int associated;
fd05d64e
JM		 99 u8 ssid[32];
100 size_t ssid_len;
ad1e68e6
JM		 101 int nlmode;
102 int ap_scan_as_station;
d2440ba0 103
d2440ba0 104 int beacon_int;
0915d02c
JM		 105 int monitor_sock;
106 int monitor_ifidx;
7da3abe7
JM		 107
108#ifdef CONFIG_AP
109 unsigned int beacon_set:1;
d2440ba0 110#endif /* CONFIG_AP */
c5121837
JM		 111
112#ifdef HOSTAPD
c5121837 113 int eapol_sock; /* socket for EAPOL frames */
c5121837
JM		 114
115 int default_if_indices[16];
116 int *if_indices;
117 int num_if_indices;
118
c5121837 119 struct i802_bss bss;
c5121837
JM		 120
121 int last_freq;
122 int last_freq_ht;
c5121837 123#endif /* HOSTAPD */
3f5285e8
JM		 124};
125
126
127static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx,
128 void *timeout_ctx);
ad1e68e6 129static int wpa_driver_nl80211_set_mode(void *priv, int mode);
362f781e 130static int
7524cfb1
JM		 131wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv);
132
0915d02c
JM		 133#ifdef CONFIG_AP
134static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
135 int ifidx);
136#endif /* CONFIG_AP */
137
072ad14c 138#ifdef HOSTAPD
2135f224
JM		 139static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
140static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
b4fd6fab
JM		 141static struct i802_bss * get_bss(struct wpa_driver_nl80211_data *drv,
142 int ifindex);
bbaf0837
JM		 143static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
144 int ifidx);
145static int i802_set_freq(void *priv, struct hostapd_freq_params *freq);
146static int i802_del_beacon(struct wpa_driver_nl80211_data *drv);
072ad14c
JM		 147#endif /* HOSTAPD */
148
3f5285e8 149
6241fcb1
JM		 150/* nl80211 code */
151static int ack_handler(struct nl_msg *msg, void *arg)
152{
153 int *err = arg;
154 *err = 0;
155 return NL_STOP;
156}
157
158static int finish_handler(struct nl_msg *msg, void *arg)
159{
8e8df255
JM		 160 int *ret = arg;
161 *ret = 0;
6241fcb1
JM		 162 return NL_SKIP;
163}
164
165static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err,
166 void *arg)
167{
168 int *ret = arg;
169 *ret = err->error;
170 return NL_SKIP;
171}
172
5b7b85f6
JM		 173
174static int no_seq_check(struct nl_msg *msg, void *arg)
175{
176 return NL_OK;
177}
178
179
6241fcb1
JM		 180static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv,
181 struct nl_msg *msg,
182 int (*valid_handler)(struct nl_msg *, void *),
183 void *valid_data)
184{
185 struct nl_cb *cb;
186 int err = -ENOMEM;
187
188 cb = nl_cb_clone(drv->nl_cb);
189 if (!cb)
190 goto out;
191
192 err = nl_send_auto_complete(drv->nl_handle, msg);
193 if (err < 0)
194 goto out;
195
196 err = 1;
197
198 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
8e8df255 199 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
6241fcb1
JM		 200 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
201
202 if (valid_handler)
203 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM,
204 valid_handler, valid_data);
205
206 while (err > 0)
207 nl_recvmsgs(drv->nl_handle, cb);
208 out:
209 nl_cb_put(cb);
210 nlmsg_free(msg);
211 return err;
212}
213
214
97865538
JM		 215struct family_data {
216 const char *group;
217 int id;
218};
219
220
221static int family_handler(struct nl_msg *msg, void *arg)
222{
223 struct family_data *res = arg;
224 struct nlattr *tb[CTRL_ATTR_MAX + 1];
225 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
226 struct nlattr *mcgrp;
227 int i;
228
229 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
230 genlmsg_attrlen(gnlh, 0), NULL);
231 if (!tb[CTRL_ATTR_MCAST_GROUPS])
232 return NL_SKIP;
233
234 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) {
235 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1];
236 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp),
237 nla_len(mcgrp), NULL);
238 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] ||
239 !tb2[CTRL_ATTR_MCAST_GRP_ID] ||
240 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]),
241 res->group,
242 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0)
243 continue;
244 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]);
245 break;
246 };
247
248 return NL_SKIP;
249}
250
251
252static int nl_get_multicast_id(struct wpa_driver_nl80211_data *drv,
253 const char *family, const char *group)
254{
255 struct nl_msg *msg;
256 int ret = -1;
257 struct family_data res = { group, -ENOENT };
258
259 msg = nlmsg_alloc();
260 if (!msg)
261 return -ENOMEM;
262 genlmsg_put(msg, 0, 0, genl_ctrl_resolve(drv->nl_handle, "nlctrl"),
263 0, 0, CTRL_CMD_GETFAMILY, 0);
264 NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family);
265
266 ret = send_and_recv_msgs(drv, msg, family_handler, &res);
267 msg = NULL;
268 if (ret == 0)
269 ret = res.id;
270
271nla_put_failure:
272 nlmsg_free(msg);
273 return ret;
274}
275
276
41d931ee
JM		 277#ifdef HOSTAPD
278static int get_ifhwaddr(struct wpa_driver_nl80211_data *drv,
279 const char *ifname, u8 *addr)
280{
281 struct ifreq ifr;
282
283 os_memset(&ifr, 0, sizeof(ifr));
284 os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
285 if (ioctl(drv->ioctl_sock, SIOCGIFHWADDR, &ifr)) {
286 wpa_printf(MSG_ERROR, "%s: ioctl(SIOCGIFHWADDR): %d (%s)",
287 ifname, errno, strerror(errno));
288 return -1;
289 }
290
291 if (ifr.ifr_hwaddr.sa_family != ARPHRD_ETHER) {
292 wpa_printf(MSG_ERROR, "%s: Invalid HW-addr family 0x%04x",
293 ifname, ifr.ifr_hwaddr.sa_family);
294 return -1;
295 }
296 os_memcpy(addr, ifr.ifr_hwaddr.sa_data, ETH_ALEN);
297
298 return 0;
299}
300
301
302static int set_ifhwaddr(struct wpa_driver_nl80211_data *drv,
303 const char *ifname, const u8 *addr)
304{
305 struct ifreq ifr;
306
307 os_memset(&ifr, 0, sizeof(ifr));
308 os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
309 os_memcpy(ifr.ifr_hwaddr.sa_data, addr, ETH_ALEN);
310 ifr.ifr_hwaddr.sa_family = ARPHRD_ETHER;
311
312 if (ioctl(drv->ioctl_sock, SIOCSIFHWADDR, &ifr)) {
313 wpa_printf(MSG_DEBUG, "%s: ioctl(SIOCSIFHWADDR): %d (%s)",
314 ifname, errno, strerror(errno));
315 return -1;
316 }
317
318 return 0;
319}
320#endif /* HOSTAPD */
321
322
c811d5bc
JM		 323#ifndef HOSTAPD
324
3f5285e8
JM		 325static int wpa_driver_nl80211_send_oper_ifla(
326 struct wpa_driver_nl80211_data *drv,
327 int linkmode, int operstate)
328{
329 struct {
330 struct nlmsghdr hdr;
331 struct ifinfomsg ifinfo;
332 char opts[16];
333 } req;
334 struct rtattr *rta;
335 static int nl_seq;
336 ssize_t ret;
337
338 os_memset(&req, 0, sizeof(req));
339
340 req.hdr.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
341 req.hdr.nlmsg_type = RTM_SETLINK;
342 req.hdr.nlmsg_flags = NLM_F_REQUEST;
343 req.hdr.nlmsg_seq = ++nl_seq;
344 req.hdr.nlmsg_pid = 0;
345
346 req.ifinfo.ifi_family = AF_UNSPEC;
347 req.ifinfo.ifi_type = 0;
348 req.ifinfo.ifi_index = drv->ifindex;
349 req.ifinfo.ifi_flags = 0;
350 req.ifinfo.ifi_change = 0;
351
352 if (linkmode != -1) {
353 rta = (struct rtattr *)
354 ((char *) &req + NLMSG_ALIGN(req.hdr.nlmsg_len));
355 rta->rta_type = IFLA_LINKMODE;
356 rta->rta_len = RTA_LENGTH(sizeof(char));
357 *((char *) RTA_DATA(rta)) = linkmode;
358 req.hdr.nlmsg_len = NLMSG_ALIGN(req.hdr.nlmsg_len) +
359 RTA_LENGTH(sizeof(char));
360 }
361 if (operstate != -1) {
362 rta = (struct rtattr *)
363 ((char *) &req + NLMSG_ALIGN(req.hdr.nlmsg_len));
364 rta->rta_type = IFLA_OPERSTATE;
365 rta->rta_len = RTA_LENGTH(sizeof(char));
366 *((char *) RTA_DATA(rta)) = operstate;
367 req.hdr.nlmsg_len = NLMSG_ALIGN(req.hdr.nlmsg_len) +
368 RTA_LENGTH(sizeof(char));
369 }
370
7da3abe7 371 wpa_printf(MSG_DEBUG, "nl80211: Operstate: linkmode=%d, operstate=%d",
3f5285e8
JM		 372 linkmode, operstate);
373
d8816397 374 ret = send(drv->link_event_sock, &req, req.hdr.nlmsg_len, 0);
3f5285e8 375 if (ret < 0) {
7da3abe7
JM		 376 wpa_printf(MSG_DEBUG, "nl80211: Sending operstate IFLA failed:"
377 " %s (assume operstate is not supported)",
3f5285e8
JM		 378 strerror(errno));
379 }
380
381 return ret < 0 ? -1 : 0;
382}
383
384
37b7d082 385#ifndef NO_WEXT
3f5285e8
JM		 386static int wpa_driver_nl80211_set_auth_param(
387 struct wpa_driver_nl80211_data *drv, int idx, u32 value)
388{
389 struct iwreq iwr;
390 int ret = 0;
391
392 os_memset(&iwr, 0, sizeof(iwr));
393 os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
394 iwr.u.param.flags = idx & IW_AUTH_INDEX;
395 iwr.u.param.value = value;
396
397 if (ioctl(drv->ioctl_sock, SIOCSIWAUTH, &iwr) < 0) {
398 if (errno != EOPNOTSUPP) {
399 wpa_printf(MSG_DEBUG, "WEXT: SIOCSIWAUTH(param %d "
400 "value 0x%x) failed: %s)",
401 idx, value, strerror(errno));
402 }
403 ret = errno == EOPNOTSUPP ? -2 : -1;
404 }
405
406 return ret;
407}
37b7d082 408#endif /* NO_WEXT */
3f5285e8
JM		 409
410
411static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid)
412{
413 struct wpa_driver_nl80211_data *drv = priv;
c2a04078
JM		 414 if (!drv->associated)
415 return -1;
416 os_memcpy(bssid, drv->bssid, ETH_ALEN);
417 return 0;
3f5285e8
JM		 418}
419
420
3f5285e8
JM		 421static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid)
422{
423 struct wpa_driver_nl80211_data *drv = priv;
fd05d64e
JM		 424 if (!drv->associated)
425 return -1;
426 os_memcpy(ssid, drv->ssid, drv->ssid_len);
427 return drv->ssid_len;
3f5285e8
JM		 428}
429
430
7524cfb1
JM		 431static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv,
432 void *ctx, char *buf, size_t len,
433 int del)
3f5285e8
JM		 434{
435 union wpa_event_data event;
436
437 os_memset(&event, 0, sizeof(event));
438 if (len > sizeof(event.interface_status.ifname))
439 len = sizeof(event.interface_status.ifname) - 1;
440 os_memcpy(event.interface_status.ifname, buf, len);
441 event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED :
442 EVENT_INTERFACE_ADDED;
443
444 wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s",
445 del ? "DEL" : "NEW",
446 event.interface_status.ifname,
447 del ? "removed" : "added");
448
7524cfb1
JM		 449 if (os_strcmp(drv->ifname, event.interface_status.ifname) == 0) {
450 if (del)
451 drv->if_removed = 1;
452 else
453 drv->if_removed = 0;
454 }
455
3f5285e8
JM		 456 wpa_supplicant_event(ctx, EVENT_INTERFACE_STATUS, &event);
457}
458
459
7524cfb1
JM		 460static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv,
461 struct nlmsghdr *h)
462{
463 struct ifinfomsg *ifi;
464 int attrlen, _nlmsg_len, rta_len;
465 struct rtattr *attr;
466
467 ifi = NLMSG_DATA(h);
468
469 _nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
470
471 attrlen = h->nlmsg_len - _nlmsg_len;
472 if (attrlen < 0)
473 return 0;
474
475 attr = (struct rtattr *) (((char *) ifi) + _nlmsg_len);
476
477 rta_len = RTA_ALIGN(sizeof(struct rtattr));
478 while (RTA_OK(attr, attrlen)) {
479 if (attr->rta_type == IFLA_IFNAME) {
480 if (os_strcmp(((char *) attr) + rta_len, drv->ifname)
481 == 0)
482 return 1;
483 else
484 break;
485 }
486 attr = RTA_NEXT(attr, attrlen);
487 }
488
489 return 0;
490}
491
492
493static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv,
494 int ifindex, struct nlmsghdr *h)
495{
496 if (drv->ifindex == ifindex)
497 return 1;
498
499 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, h)) {
500 drv->ifindex = if_nametoindex(drv->ifname);
501 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed "
502 "interface");
503 wpa_driver_nl80211_finish_drv_init(drv);
504 return 1;
505 }
506
507 return 0;
508}
509
510
3f5285e8
JM		 511static void wpa_driver_nl80211_event_rtm_newlink(struct wpa_driver_nl80211_data *drv,
512 void *ctx, struct nlmsghdr *h,
513 size_t len)
514{
515 struct ifinfomsg *ifi;
516 int attrlen, _nlmsg_len, rta_len;
517 struct rtattr * attr;
518
519 if (len < sizeof(*ifi))
520 return;
521
522 ifi = NLMSG_DATA(h);
523
7524cfb1 524 if (!wpa_driver_nl80211_own_ifindex(drv, ifi->ifi_index, h)) {
3f5285e8
JM		 525 wpa_printf(MSG_DEBUG, "Ignore event for foreign ifindex %d",
526 ifi->ifi_index);
527 return;
528 }
529
530 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x "
531 "(%s%s%s%s)",
532 drv->operstate, ifi->ifi_flags,
533 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "",
534 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "",
535 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "",
536 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : "");
537 /*
538 * Some drivers send the association event before the operup event--in
539 * this case, lifting operstate in wpa_driver_nl80211_set_operstate()
540 * fails. This will hit us when wpa_supplicant does not need to do
541 * IEEE 802.1X authentication
542 */
543 if (drv->operstate == 1 &&
544 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP &&
545 !(ifi->ifi_flags & IFF_RUNNING))
546 wpa_driver_nl80211_send_oper_ifla(drv, -1, IF_OPER_UP);
547
548 _nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
549
550 attrlen = h->nlmsg_len - _nlmsg_len;
551 if (attrlen < 0)
552 return;
553
554 attr = (struct rtattr *) (((char *) ifi) + _nlmsg_len);
555
556 rta_len = RTA_ALIGN(sizeof(struct rtattr));
557 while (RTA_OK(attr, attrlen)) {
d8816397 558 if (attr->rta_type == IFLA_IFNAME) {
7524cfb1
JM		 559 wpa_driver_nl80211_event_link(
560 drv, ctx,
561 ((char *) attr) + rta_len,
562 attr->rta_len - rta_len, 0);
3f5285e8
JM		 563 }
564 attr = RTA_NEXT(attr, attrlen);
565 }
566}
567
568
569static void wpa_driver_nl80211_event_rtm_dellink(struct wpa_driver_nl80211_data *drv,
570 void *ctx, struct nlmsghdr *h,
571 size_t len)
572{
573 struct ifinfomsg *ifi;
574 int attrlen, _nlmsg_len, rta_len;
575 struct rtattr * attr;
576
577 if (len < sizeof(*ifi))
578 return;
579
580 ifi = NLMSG_DATA(h);
581
582 _nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
583
584 attrlen = h->nlmsg_len - _nlmsg_len;
585 if (attrlen < 0)
586 return;
587
588 attr = (struct rtattr *) (((char *) ifi) + _nlmsg_len);
589
590 rta_len = RTA_ALIGN(sizeof(struct rtattr));
591 while (RTA_OK(attr, attrlen)) {
592 if (attr->rta_type == IFLA_IFNAME) {
7524cfb1
JM		 593 wpa_driver_nl80211_event_link(
594 drv, ctx,
595 ((char *) attr) + rta_len,
596 attr->rta_len - rta_len, 1);
3f5285e8
JM		 597 }
598 attr = RTA_NEXT(attr, attrlen);
599 }
600}
601
602
d8816397 603static void wpa_driver_nl80211_event_receive_link(int sock, void *eloop_ctx,
97865538 604 void *sock_ctx)
3f5285e8
JM		 605{
606 char buf[8192];
607 int left;
608 struct sockaddr_nl from;
609 socklen_t fromlen;
610 struct nlmsghdr *h;
611 int max_events = 10;
612
613try_again:
614 fromlen = sizeof(from);
615 left = recvfrom(sock, buf, sizeof(buf), MSG_DONTWAIT,
616 (struct sockaddr *) &from, &fromlen);
617 if (left < 0) {
618 if (errno != EINTR && errno != EAGAIN)
619 perror("recvfrom(netlink)");
620 return;
621 }
622
623 h = (struct nlmsghdr *) buf;
624 while (left >= (int) sizeof(*h)) {
625 int len, plen;
626
627 len = h->nlmsg_len;
628 plen = len - sizeof(*h);
629 if (len > left || plen < 0) {
630 wpa_printf(MSG_DEBUG, "Malformed netlink message: "
631 "len=%d left=%d plen=%d",
632 len, left, plen);
633 break;
634 }
635
636 switch (h->nlmsg_type) {
637 case RTM_NEWLINK:
638 wpa_driver_nl80211_event_rtm_newlink(eloop_ctx, sock_ctx,
639 h, plen);
640 break;
641 case RTM_DELLINK:
642 wpa_driver_nl80211_event_rtm_dellink(eloop_ctx, sock_ctx,
643 h, plen);
644 break;
645 }
646
647 len = NLMSG_ALIGN(len);
648 left -= len;
649 h = (struct nlmsghdr *) ((char *) h + len);
650 }
651
652 if (left > 0) {
653 wpa_printf(MSG_DEBUG, "%d extra bytes in the end of netlink "
654 "message", left);
655 }
656
657 if (--max_events > 0) {
658 /*
659 * Try to receive all events in one eloop call in order to
660 * limit race condition on cases where AssocInfo event, Assoc
661 * event, and EAPOL frames are received more or less at the
662 * same time. We want to process the event messages first
663 * before starting EAPOL processing.
664 */
665 goto try_again;
666 }
667}
668
669
c2a04078
JM		 670static void mlme_event_auth(struct wpa_driver_nl80211_data *drv,
671 const u8 *frame, size_t len)
672{
673 const struct ieee80211_mgmt *mgmt;
674 union wpa_event_data event;
675
676 mgmt = (const struct ieee80211_mgmt *) frame;
677 if (len < 24 + sizeof(mgmt->u.auth)) {
678 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
679 "frame");
680 return;
681 }
682
683 os_memset(&event, 0, sizeof(event));
684 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN);
685 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg);
686 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code);
687 if (len > 24 + sizeof(mgmt->u.auth)) {
688 event.auth.ies = mgmt->u.auth.variable;
689 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth);
690 }
691
692 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event);
693}
694
695
696static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv,
697 const u8 *frame, size_t len)
698{
699 const struct ieee80211_mgmt *mgmt;
700 union wpa_event_data event;
701 u16 status;
702
703 mgmt = (const struct ieee80211_mgmt *) frame;
704 if (len < 24 + sizeof(mgmt->u.assoc_resp)) {
705 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
706 "frame");
707 return;
708 }
709
710 status = le_to_host16(mgmt->u.assoc_resp.status_code);
711 if (status != WLAN_STATUS_SUCCESS) {
efa46078
JM		 712 os_memset(&event, 0, sizeof(event));
713 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
714 event.assoc_reject.resp_ies =
715 (u8 *) mgmt->u.assoc_resp.variable;
716 event.assoc_reject.resp_ies_len =
717 len - 24 - sizeof(mgmt->u.assoc_resp);
718 }
719 event.assoc_reject.status_code = status;
720
721 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
c2a04078
JM		 722 return;
723 }
724
725 drv->associated = 1;
726 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN);
727
728 os_memset(&event, 0, sizeof(event));
729 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
730 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable;
731 event.assoc_info.resp_ies_len =
efa46078 732 len - 24 - sizeof(mgmt->u.assoc_resp);
c2a04078
JM		 733 }
734
735 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
736}
737
738
739static void mlme_event(struct wpa_driver_nl80211_data *drv,
740 enum nl80211_commands cmd, struct nlattr *frame)
741{
742 if (frame == NULL) {
743 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d without frame "
744 "data", cmd);
745 return;
746 }
747
748 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d", cmd);
749 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame",
750 nla_data(frame), nla_len(frame));
751
752 switch (cmd) {
753 case NL80211_CMD_AUTHENTICATE:
754 mlme_event_auth(drv, nla_data(frame), nla_len(frame));
755 break;
756 case NL80211_CMD_ASSOCIATE:
757 mlme_event_assoc(drv, nla_data(frame), nla_len(frame));
758 break;
759 case NL80211_CMD_DEAUTHENTICATE:
760 drv->associated = 0;
761 wpa_supplicant_event(drv->ctx, EVENT_DEAUTH, NULL);
762 break;
763 case NL80211_CMD_DISASSOCIATE:
764 drv->associated = 0;
765 wpa_supplicant_event(drv->ctx, EVENT_DISASSOC, NULL);
766 break;
767 default:
768 break;
769 }
770}
771
5b7b85f6
JM		 772#endif /* HOSTAPD */
773
c2a04078 774
35583f3f
JM		 775static void mlme_event_michael_mic_failure(struct wpa_driver_nl80211_data *drv,
776 struct nlattr *tb[])
777{
778 union wpa_event_data data;
779
780 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure");
781 os_memset(&data, 0, sizeof(data));
782 if (tb[NL80211_ATTR_MAC]) {
783 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address",
784 nla_data(tb[NL80211_ATTR_MAC]),
785 nla_len(tb[NL80211_ATTR_MAC]));
ad1e68e6 786 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]);
35583f3f
JM		 787 }
788 if (tb[NL80211_ATTR_KEY_SEQ]) {
789 wpa_hexdump(MSG_DEBUG, "nl80211: TSC",
790 nla_data(tb[NL80211_ATTR_KEY_SEQ]),
791 nla_len(tb[NL80211_ATTR_KEY_SEQ]));
792 }
793 if (tb[NL80211_ATTR_KEY_TYPE]) {
794 enum nl80211_key_type key_type =
795 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]);
796 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type);
797 if (key_type == NL80211_KEYTYPE_PAIRWISE)
798 data.michael_mic_failure.unicast = 1;
799 } else
800 data.michael_mic_failure.unicast = 1;
801
802 if (tb[NL80211_ATTR_KEY_IDX]) {
803 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]);
804 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id);
805 }
806
807 wpa_supplicant_event(drv->ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
808}
809
810
97865538
JM		 811static int process_event(struct nl_msg *msg, void *arg)
812{
813 struct wpa_driver_nl80211_data *drv = arg;
814 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
815 struct nlattr *tb[NL80211_ATTR_MAX + 1];
816
817 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
818 genlmsg_attrlen(gnlh, 0), NULL);
819
820 if (tb[NL80211_ATTR_IFINDEX]) {
821 int ifindex = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
822 if (ifindex != drv->ifindex) {
823 wpa_printf(MSG_DEBUG, "nl80211: Ignored event (cmd=%d)"
824 " for foreign interface (ifindex %d)",
825 gnlh->cmd, ifindex);
826 return NL_SKIP;
827 }
828 }
829
ad1e68e6
JM		 830 if (drv->ap_scan_as_station &&
831 (gnlh->cmd == NL80211_CMD_NEW_SCAN_RESULTS ||
832 gnlh->cmd == NL80211_CMD_SCAN_ABORTED)) {
833 wpa_driver_nl80211_set_mode(drv, IEEE80211_MODE_AP);
834 drv->ap_scan_as_station = 0;
835 }
836
97865538
JM		 837 switch (gnlh->cmd) {
838 case NL80211_CMD_NEW_SCAN_RESULTS:
839 wpa_printf(MSG_DEBUG, "nl80211: New scan results available");
840 drv->scan_complete_events = 1;
841 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
842 drv->ctx);
843 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, NULL);
844 break;
845 case NL80211_CMD_SCAN_ABORTED:
846 wpa_printf(MSG_DEBUG, "nl80211: Scan aborted");
847 /*
848 * Need to indicate that scan results are available in order
849 * not to make wpa_supplicant stop its scanning.
850 */
851 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
852 drv->ctx);
853 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, NULL);
854 break;
ad1e68e6 855#ifndef HOSTAPD
c2a04078
JM		 856 case NL80211_CMD_AUTHENTICATE:
857 case NL80211_CMD_ASSOCIATE:
858 case NL80211_CMD_DEAUTHENTICATE:
859 case NL80211_CMD_DISASSOCIATE:
860 mlme_event(drv, gnlh->cmd, tb[NL80211_ATTR_FRAME]);
861 break;
5b7b85f6 862#endif /* HOSTAPD */
35583f3f
JM		 863 case NL80211_CMD_MICHAEL_MIC_FAILURE:
864 mlme_event_michael_mic_failure(drv, tb);
865 break;
97865538 866 default:
c2a04078
JM		 867 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event "
868 "(cmd=%d)", gnlh->cmd);
97865538
JM		 869 break;
870 }
871
872 return NL_SKIP;
873}
874
875
876static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx,
877 void *sock_ctx)
878{
879 struct nl_cb *cb;
880 struct wpa_driver_nl80211_data *drv = eloop_ctx;
881
882 wpa_printf(MSG_DEBUG, "nl80211: Event message available");
883
884 cb = nl_cb_clone(drv->nl_cb);
885 if (!cb)
886 return;
887 nl_cb_set(cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL);
888 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, process_event, drv);
889 nl_recvmsgs(drv->nl_handle, cb);
890 nl_cb_put(cb);
891}
892
893
2135f224
JM		 894static int hostapd_set_iface_flags(struct wpa_driver_nl80211_data *drv,
895 const char *ifname, int dev_up)
3f5285e8
JM		 896{
897 struct ifreq ifr;
898
2135f224
JM		 899 if (drv->ioctl_sock < 0)
900 return -1;
901
3f5285e8
JM		 902 os_memset(&ifr, 0, sizeof(ifr));
903 os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
2135f224
JM		 904
905 if (ioctl(drv->ioctl_sock, SIOCGIFFLAGS, &ifr) != 0) {
3f5285e8 906 perror("ioctl[SIOCGIFFLAGS]");
2135f224
JM		 907 wpa_printf(MSG_DEBUG, "Could not read interface flags (%s)",
908 ifname);
3f5285e8
JM		 909 return -1;
910 }
3f5285e8 911
2135f224
JM		 912 if (dev_up) {
913 if (ifr.ifr_flags & IFF_UP)
914 return 0;
915 ifr.ifr_flags |= IFF_UP;
916 } else {
917 if (!(ifr.ifr_flags & IFF_UP))
918 return 0;
919 ifr.ifr_flags &= ~IFF_UP;
920 }
3f5285e8 921
2135f224
JM		 922 if (ioctl(drv->ioctl_sock, SIOCSIFFLAGS, &ifr) != 0) {
923 perror("ioctl[SIOCSIFFLAGS]");
3f5285e8
JM		 924 return -1;
925 }
3f5285e8 926
2135f224 927 return 0;
3f5285e8
JM		 928}
929
930
6d158490
LR		 931/**
932 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain
933 * @priv: driver_nl80211 private data
934 * @alpha2_arg: country to which to switch to
935 * Returns: 0 on success, -1 on failure
936 *
937 * This asks nl80211 to set the regulatory domain for given
938 * country ISO / IEC alpha2.
939 */
940static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg)
941{
942 struct wpa_driver_nl80211_data *drv = priv;
943 char alpha2[3];
944 struct nl_msg *msg;
945
946 msg = nlmsg_alloc();
947 if (!msg)
e785c2ba 948 return -ENOMEM;
6d158490
LR		 949
950 alpha2[0] = alpha2_arg[0];
951 alpha2[1] = alpha2_arg[1];
952 alpha2[2] = '\0';
953
954 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
955 0, NL80211_CMD_REQ_SET_REG, 0);
956
957 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2);
958 if (send_and_recv_msgs(drv, msg, NULL, NULL))
959 return -EINVAL;
960 return 0;
961nla_put_failure:
962 return -EINVAL;
963}
964
965
bbaf0837 966#ifndef HOSTAPD
80bc75f1
JM		 967struct wiphy_info_data {
968 int max_scan_ssids;
1581b38b 969 int ap_supported;
80bc75f1
JM		 970};
971
972
973static int wiphy_info_handler(struct nl_msg *msg, void *arg)
974{
975 struct nlattr *tb[NL80211_ATTR_MAX + 1];
976 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
977 struct wiphy_info_data *info = arg;
978
979 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
980 genlmsg_attrlen(gnlh, 0), NULL);
981
982 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS])
983 info->max_scan_ssids =
984 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]);
985
1581b38b
JM		 986 if (tb[NL80211_ATTR_SUPPORTED_IFTYPES]) {
987 struct nlattr *nl_mode;
988 int i;
989 nla_for_each_nested(nl_mode,
990 tb[NL80211_ATTR_SUPPORTED_IFTYPES], i) {
991 if (nl_mode->nla_type == NL80211_IFTYPE_AP) {
992 info->ap_supported = 1;
993 break;
994 }
995 }
996 }
997
80bc75f1
JM		 998 return NL_SKIP;
999}
1000
1001
1002static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv,
1003 struct wiphy_info_data *info)
1004{
1005 struct nl_msg *msg;
1006
1007 os_memset(info, 0, sizeof(*info));
1008 msg = nlmsg_alloc();
1009 if (!msg)
1010 return -1;
1011
1012 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1013 0, NL80211_CMD_GET_WIPHY, 0);
1014
1015 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1016
1017 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info) == 0)
1018 return 0;
1019 msg = NULL;
1020nla_put_failure:
1021 nlmsg_free(msg);
1022 return -1;
1023}
1024
1025
1026static void wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
1027{
1028 struct wiphy_info_data info;
1029 if (wpa_driver_nl80211_get_info(drv, &info))
1030 return;
1031 drv->has_capability = 1;
1b2a72e8
JM		 1032 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */
1033 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
1034 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
1035 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
1036 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
1037 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 |
1038 WPA_DRIVER_CAPA_ENC_WEP104 |
1039 WPA_DRIVER_CAPA_ENC_TKIP |
1040 WPA_DRIVER_CAPA_ENC_CCMP;
1041
80bc75f1 1042 drv->capa.max_scan_ssids = info.max_scan_ssids;
1581b38b
JM		 1043 if (info.ap_supported)
1044 drv->capa.flags |= WPA_DRIVER_FLAGS_AP;
80bc75f1 1045}
bbaf0837 1046#endif /* HOSTAPD */
80bc75f1
JM		 1047
1048
9fff9fdc
JM		 1049static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv,
1050 void *ctx)
3f5285e8 1051{
9fff9fdc 1052 int ret;
3f5285e8 1053
9fff9fdc 1054 /* Initialize generic netlink and nl80211 */
3f5285e8
JM		 1055
1056 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
1057 if (drv->nl_cb == NULL) {
1058 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
1059 "callbacks");
1060 goto err1;
1061 }
1062
1063 drv->nl_handle = nl_handle_alloc_cb(drv->nl_cb);
1064 if (drv->nl_handle == NULL) {
1065 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
1066 "callbacks");
1067 goto err2;
1068 }
1069
1070 if (genl_connect(drv->nl_handle)) {
1071 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
1072 "netlink");
1073 goto err3;
1074 }
1075
9fff9fdc
JM		 1076#ifdef CONFIG_LIBNL20
1077 if (genl_ctrl_alloc_cache(drv->nl_handle, &drv->nl_cache) < 0) {
1078 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1079 "netlink cache");
1080 goto err3;
1081 }
1082#else /* CONFIG_LIBNL20 */
3f5285e8
JM		 1083 drv->nl_cache = genl_ctrl_alloc_cache(drv->nl_handle);
1084 if (drv->nl_cache == NULL) {
1085 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1086 "netlink cache");
1087 goto err3;
1088 }
9fff9fdc
JM		 1089#endif /* CONFIG_LIBNL20 */
1090
3f5285e8
JM		 1091
1092 drv->nl80211 = genl_ctrl_search_by_name(drv->nl_cache, "nl80211");
1093 if (drv->nl80211 == NULL) {
1094 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not "
1095 "found");
1096 goto err4;
1097 }
1098
97865538
JM		 1099 ret = nl_get_multicast_id(drv, "nl80211", "scan");
1100 if (ret >= 0)
1101 ret = nl_socket_add_membership(drv->nl_handle, ret);
1102 if (ret < 0) {
1103 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
1104 "membership for scan events: %d (%s)",
1105 ret, strerror(-ret));
1106 goto err4;
1107 }
c2a04078
JM		 1108
1109 ret = nl_get_multicast_id(drv, "nl80211", "mlme");
1110 if (ret >= 0)
1111 ret = nl_socket_add_membership(drv->nl_handle, ret);
c2a04078
JM		 1112 if (ret < 0) {
1113 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
1114 "membership for mlme events: %d (%s)",
1115 ret, strerror(-ret));
1116 goto err4;
1117 }
c2a04078 1118
97865538
JM		 1119 eloop_register_read_sock(nl_socket_get_fd(drv->nl_handle),
1120 wpa_driver_nl80211_event_receive, drv, ctx);
1121
9fff9fdc
JM		 1122 return 0;
1123
1124err4:
1125 nl_cache_free(drv->nl_cache);
1126err3:
1127 nl_handle_destroy(drv->nl_handle);
1128err2:
1129 nl_cb_put(drv->nl_cb);
1130err1:
1131 return -1;
1132}
1133
1134
bbaf0837
JM		 1135static int wpa_driver_nl80211_init_link_events(
1136 struct wpa_driver_nl80211_data *drv)
1137{
1138#ifdef HOSTAPD
1139 return 0;
1140#else /* HOSTAPD */
1141 int s;
1142 struct sockaddr_nl local;
1143
1144 s = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
1145 if (s < 0) {
1146 perror("socket(PF_NETLINK,SOCK_RAW,NETLINK_ROUTE)");
7af376e4 1147 return -1;
bbaf0837
JM		 1148 }
1149
1150 os_memset(&local, 0, sizeof(local));
1151 local.nl_family = AF_NETLINK;
1152 local.nl_groups = RTMGRP_LINK;
1153 if (bind(s, (struct sockaddr *) &local, sizeof(local)) < 0) {
1154 perror("bind(netlink)");
1155 close(s);
1156 return -1;
1157 }
1158
1159 eloop_register_read_sock(s, wpa_driver_nl80211_event_receive_link, drv,
7af376e4 1160 drv->ctx);
bbaf0837
JM		 1161 drv->link_event_sock = s;
1162
1163 return 0;
1164#endif /* HOSTAPD */
1165}
1166
1167
9fff9fdc
JM		 1168/**
1169 * wpa_driver_nl80211_init - Initialize nl80211 driver interface
1170 * @ctx: context to be used when calling wpa_supplicant functions,
1171 * e.g., wpa_supplicant_event()
1172 * @ifname: interface name, e.g., wlan0
1173 * Returns: Pointer to private data, %NULL on failure
1174 */
1175static void * wpa_driver_nl80211_init(void *ctx, const char *ifname)
1176{
9fff9fdc
JM		 1177 struct wpa_driver_nl80211_data *drv;
1178
1179 drv = os_zalloc(sizeof(*drv));
1180 if (drv == NULL)
1181 return NULL;
1182 drv->ctx = ctx;
1183 os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
9fff9fdc
JM		 1184 drv->monitor_ifidx = -1;
1185 drv->monitor_sock = -1;
bbaf0837
JM		 1186 drv->link_event_sock = -1;
1187 drv->ioctl_sock = -1;
9fff9fdc 1188
bbaf0837
JM		 1189 if (wpa_driver_nl80211_init_nl(drv, ctx)) {
1190 os_free(drv);
1191 return NULL;
1192 }
9fff9fdc
JM		 1193
1194 drv->capa.flags |= WPA_DRIVER_FLAGS_SME;
1195
3f5285e8
JM		 1196 drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
1197 if (drv->ioctl_sock < 0) {
1198 perror("socket(PF_INET,SOCK_DGRAM)");
bbaf0837 1199 goto failed;
3f5285e8
JM		 1200 }
1201
bbaf0837
JM		 1202 if (wpa_driver_nl80211_init_link_events(drv) ||
1203 wpa_driver_nl80211_finish_drv_init(drv))
1204 goto failed;
7524cfb1
JM		 1205
1206 return drv;
1207
bbaf0837
JM		 1208failed:
1209 if (drv->link_event_sock >= 0) {
1210 eloop_unregister_read_sock(drv->link_event_sock);
1211 close(drv->link_event_sock);
1212 }
1213 if (drv->ioctl_sock >= 0)
1214 close(drv->ioctl_sock);
1215
7524cfb1 1216 genl_family_put(drv->nl80211);
7524cfb1 1217 nl_cache_free(drv->nl_cache);
7524cfb1 1218 nl_handle_destroy(drv->nl_handle);
7524cfb1 1219 nl_cb_put(drv->nl_cb);
bbaf0837 1220
7524cfb1
JM		 1221 os_free(drv);
1222 return NULL;
1223}
1224
1225
362f781e 1226static int
7524cfb1
JM		 1227wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv)
1228{
a87c9d96
JM		 1229 drv->ifindex = if_nametoindex(drv->ifname);
1230
bbaf0837 1231#ifndef HOSTAPD
ad1e68e6 1232 if (wpa_driver_nl80211_set_mode(drv, IEEE80211_MODE_INFRA) < 0) {
a87c9d96
JM		 1233 wpa_printf(MSG_DEBUG, "nl80211: Could not configure driver to "
1234 "use managed mode");
1235 }
1236
2135f224
JM		 1237 if (hostapd_set_iface_flags(drv, drv->ifname, 1)) {
1238 wpa_printf(MSG_ERROR, "Could not set interface '%s' "
1239 "UP", drv->ifname);
362f781e
JM		 1240 return -1;
1241 }
3f5285e8 1242
80bc75f1
JM		 1243 wpa_driver_nl80211_capa(drv);
1244
3f5285e8 1245 wpa_driver_nl80211_send_oper_ifla(drv, 1, IF_OPER_DORMANT);
bbaf0837 1246#endif /* HOSTAPD */
362f781e
JM		 1247
1248 return 0;
3f5285e8
JM		 1249}
1250
1251
bbaf0837
JM		 1252#ifdef HOSTAPD
1253static void wpa_driver_nl80211_free_bss(struct wpa_driver_nl80211_data *drv)
1254{
1255 struct i802_bss *bss, *prev;
1256 bss = drv->bss.next;
1257 while (bss) {
1258 prev = bss;
1259 bss = bss->next;
1260 os_free(bss);
1261 }
1262}
1263#endif /* HOSTAPD */
1264
1265
3f5285e8 1266/**
7e5ba1b9
JM		 1267 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface
1268 * @priv: Pointer to private nl80211 data from wpa_driver_nl80211_init()
3f5285e8
JM		 1269 *
1270 * Shut down driver interface and processing of driver events. Free
1271 * private data buffer if one was allocated in wpa_driver_nl80211_init().
1272 */
7e5ba1b9 1273static void wpa_driver_nl80211_deinit(void *priv)
3f5285e8
JM		 1274{
1275 struct wpa_driver_nl80211_data *drv = priv;
3f5285e8 1276
bbaf0837 1277#if defined(CONFIG_AP) || defined(HOSTAPD)
0915d02c
JM		 1278 if (drv->monitor_ifidx >= 0)
1279 nl80211_remove_iface(drv, drv->monitor_ifidx);
1280 if (drv->monitor_sock >= 0) {
1281 eloop_unregister_read_sock(drv->monitor_sock);
1282 close(drv->monitor_sock);
1283 }
bbaf0837 1284#endif /* CONFIG_AP || HOSTAPD */
0915d02c 1285
bbaf0837
JM		 1286#ifdef HOSTAPD
1287 if (drv->last_freq_ht) {
1288 /* Clear HT flags from the driver */
1289 struct hostapd_freq_params freq;
1290 os_memset(&freq, 0, sizeof(freq));
1291 freq.freq = drv->last_freq;
1292 i802_set_freq(priv, &freq);
1293 }
1294
1295 i802_del_beacon(drv);
3f5285e8 1296
bbaf0837
JM		 1297 if (drv->eapol_sock >= 0) {
1298 eloop_unregister_read_sock(drv->eapol_sock);
1299 close(drv->eapol_sock);
1300 }
1301
1302 if (drv->if_indices != drv->default_if_indices)
1303 os_free(drv->if_indices);
1304
1305 wpa_driver_nl80211_free_bss(drv);
1306#else /* HOSTAPD */
37b7d082 1307#ifndef NO_WEXT
36b15723 1308 wpa_driver_nl80211_set_auth_param(drv, IW_AUTH_DROP_UNENCRYPTED, 0);
37b7d082 1309#endif /* NO_WEXT */
3f5285e8
JM		 1310
1311 wpa_driver_nl80211_send_oper_ifla(priv, 0, IF_OPER_UP);
1312
bbaf0837
JM		 1313 if (drv->link_event_sock >= 0) {
1314 eloop_unregister_read_sock(drv->link_event_sock);
1315 close(drv->link_event_sock);
1316 }
1317#endif /* HOSTAPD */
3f5285e8 1318
bbaf0837
JM		 1319 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
1320
1321 (void) hostapd_set_iface_flags(drv, drv->ifname, 0);
ad1e68e6 1322 wpa_driver_nl80211_set_mode(drv, IEEE80211_MODE_INFRA);
3f5285e8 1323
bbaf0837
JM		 1324 if (drv->ioctl_sock >= 0)
1325 close(drv->ioctl_sock);
3f5285e8 1326
97865538 1327 eloop_unregister_read_sock(nl_socket_get_fd(drv->nl_handle));
3f5285e8
JM		 1328 genl_family_put(drv->nl80211);
1329 nl_cache_free(drv->nl_cache);
1330 nl_handle_destroy(drv->nl_handle);
1331 nl_cb_put(drv->nl_cb);
1332
1333 os_free(drv);
1334}
1335
1336
1337/**
1338 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion
ad1e68e6 1339 * @eloop_ctx: Driver private data
3f5285e8
JM		 1340 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init()
1341 *
1342 * This function can be used as registered timeout when starting a scan to
1343 * generate a scan completed event if the driver does not report this.
1344 */
1345static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx)
1346{
ad1e68e6
JM		 1347 struct wpa_driver_nl80211_data *drv = eloop_ctx;
1348 if (drv->ap_scan_as_station) {
1349 wpa_driver_nl80211_set_mode(drv, IEEE80211_MODE_AP);
1350 drv->ap_scan_as_station = 0;
1351 }
3f5285e8
JM		 1352 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results");
1353 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL);
1354}
1355
1356
1357/**
1358 * wpa_driver_nl80211_scan - Request the driver to initiate scan
ad1e68e6 1359 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
6a1063e0 1360 * @params: Scan parameters
3f5285e8
JM		 1361 * Returns: 0 on success, -1 on failure
1362 */
6a1063e0
JM		 1363static int wpa_driver_nl80211_scan(void *priv,
1364 struct wpa_driver_scan_params *params)
3f5285e8
JM		 1365{
1366 struct wpa_driver_nl80211_data *drv = priv;
3f5285e8 1367 int ret = 0, timeout;
d3a98225 1368 struct nl_msg *msg, *ssids, *freqs;
6a1063e0 1369 size_t i;
3f5285e8 1370
0e75527f
JM		 1371 msg = nlmsg_alloc();
1372 ssids = nlmsg_alloc();
d3a98225
JM		 1373 freqs = nlmsg_alloc();
1374 if (!msg || !ssids || !freqs) {
0e75527f
JM		 1375 nlmsg_free(msg);
1376 nlmsg_free(ssids);
d3a98225 1377 nlmsg_free(freqs);
3f5285e8
JM		 1378 return -1;
1379 }
1380
0e75527f
JM		 1381 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
1382 NL80211_CMD_TRIGGER_SCAN, 0);
1383
1384 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3f5285e8 1385
6a1063e0
JM		 1386 for (i = 0; i < params->num_ssids; i++) {
1387 NLA_PUT(ssids, i + 1, params->ssids[i].ssid_len,
1388 params->ssids[i].ssid);
3f5285e8 1389 }
6a1063e0
JM		 1390 if (params->num_ssids)
1391 nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids);
3f5285e8 1392
d173df52
JM		 1393 if (params->extra_ies) {
1394 NLA_PUT(msg, NL80211_ATTR_IE, params->extra_ies_len,
1395 params->extra_ies);
1396 }
1397
d3a98225
JM		 1398 if (params->freqs) {
1399 for (i = 0; params->freqs[i]; i++)
1400 NLA_PUT_U32(freqs, i + 1, params->freqs[i]);
1401 nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES, freqs);
1402 }
1403
0e75527f
JM		 1404 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
1405 msg = NULL;
1406 if (ret) {
1407 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d "
1408 "(%s)", ret, strerror(-ret));
ad1e68e6
JM		 1409#ifdef HOSTAPD
1410 if (drv->nlmode == NL80211_IFTYPE_AP) {
1411 /*
1412 * mac80211 does not allow scan requests in AP mode, so
1413 * try to do this in station mode.
1414 */
1415 if (wpa_driver_nl80211_set_mode(drv,
1416 IEEE80211_MODE_INFRA))
1417 goto nla_put_failure;
1418
1419 if (wpa_driver_nl80211_scan(drv, params)) {
1420 wpa_driver_nl80211_set_mode(drv,
1421 IEEE80211_MODE_AP);
1422 goto nla_put_failure;
1423 }
1424
1425 /* Restore AP mode when processing scan results */
1426 drv->ap_scan_as_station = 1;
1427 ret = 0;
1428 } else
1429 goto nla_put_failure;
1430#else /* HOSTAPD */
0e75527f 1431 goto nla_put_failure;
ad1e68e6 1432#endif /* HOSTAPD */
3f5285e8
JM		 1433 }
1434
1435 /* Not all drivers generate "scan completed" wireless event, so try to
1436 * read results after a timeout. */
0e75527f 1437 timeout = 10;
3f5285e8
JM		 1438 if (drv->scan_complete_events) {
1439 /*
d173df52
JM		 1440 * The driver seems to deliver events to notify when scan is
1441 * complete, so use longer timeout to avoid race conditions
1442 * with scanning and following association request.
3f5285e8
JM		 1443 */
1444 timeout = 30;
1445 }
1446 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d "
1447 "seconds", ret, timeout);
1448 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
0e75527f
JM		 1449 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout,
1450 drv, drv->ctx);
3f5285e8 1451
0e75527f
JM		 1452nla_put_failure:
1453 nlmsg_free(ssids);
1454 nlmsg_free(msg);
d3a98225 1455 nlmsg_free(freqs);
3f5285e8
JM		 1456 return ret;
1457}
1458
1459
b3db1e1c 1460static int bss_info_handler(struct nl_msg *msg, void *arg)
3f5285e8 1461{
b3db1e1c
JM		 1462 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1463 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1464 struct nlattr *bss[NL80211_BSS_MAX + 1];
1465 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
1466 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC },
1467 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 },
1468 [NL80211_BSS_TSF] = { .type = NLA_U64 },
1469 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 },
1470 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 },
1471 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC },
1472 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 },
1473 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 },
1474 };
1475 struct wpa_scan_results *res = arg;
3f5285e8
JM		 1476 struct wpa_scan_res **tmp;
1477 struct wpa_scan_res *r;
b3db1e1c
JM		 1478 const u8 *ie;
1479 size_t ie_len;
3f5285e8 1480
b3db1e1c
JM		 1481 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1482 genlmsg_attrlen(gnlh, 0), NULL);
1483 if (!tb[NL80211_ATTR_BSS])
1484 return NL_SKIP;
1485 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS],
1486 bss_policy))
1487 return NL_SKIP;
1488 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) {
1489 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
1490 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
1491 } else {
1492 ie = NULL;
1493 ie_len = 0;
1494 }
3f5285e8 1495
b3db1e1c 1496 r = os_zalloc(sizeof(*r) + ie_len);
3f5285e8 1497 if (r == NULL)
b3db1e1c
JM		 1498 return NL_SKIP;
1499 if (bss[NL80211_BSS_BSSID])
1500 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]),
1501 ETH_ALEN);
1502 if (bss[NL80211_BSS_FREQUENCY])
1503 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
1504 if (bss[NL80211_BSS_BEACON_INTERVAL])
1505 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]);
1506 if (bss[NL80211_BSS_CAPABILITY])
1507 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]);
7c2849d2
JM		 1508 r->flags |= WPA_SCAN_NOISE_INVALID;
1509 if (bss[NL80211_BSS_SIGNAL_MBM]) {
b3db1e1c 1510 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]);
7c2849d2
JM		 1511 r->level /= 100; /* mBm to dBm */
1512 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID;
1513 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) {
1514 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]);
1515 r->flags |= WPA_SCAN_LEVEL_INVALID;
1516 } else
1517 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID;
b3db1e1c
JM		 1518 if (bss[NL80211_BSS_TSF])
1519 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]);
1520 r->ie_len = ie_len;
1521 if (ie)
1522 os_memcpy(r + 1, ie, ie_len);
3f5285e8
JM		 1523
1524 tmp = os_realloc(res->res,
1525 (res->num + 1) * sizeof(struct wpa_scan_res *));
1526 if (tmp == NULL) {
1527 os_free(r);
b3db1e1c 1528 return NL_SKIP;
3f5285e8
JM		 1529 }
1530 tmp[res->num++] = r;
1531 res->res = tmp;
b3db1e1c
JM		 1532
1533 return NL_SKIP;
3f5285e8 1534}
b3db1e1c 1535
3f5285e8
JM		 1536
1537/**
1538 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results
1539 * @priv: Pointer to private wext data from wpa_driver_nl80211_init()
1540 * Returns: Scan results on success, -1 on failure
1541 */
7e5ba1b9
JM		 1542static struct wpa_scan_results *
1543wpa_driver_nl80211_get_scan_results(void *priv)
3f5285e8
JM		 1544{
1545 struct wpa_driver_nl80211_data *drv = priv;
b3db1e1c 1546 struct nl_msg *msg;
3f5285e8 1547 struct wpa_scan_results *res;
b3db1e1c 1548 int ret;
3f5285e8
JM		 1549
1550 res = os_zalloc(sizeof(*res));
b3db1e1c
JM		 1551 if (res == NULL)
1552 return 0;
1553 msg = nlmsg_alloc();
1554 if (!msg)
1555 goto nla_put_failure;
3f5285e8 1556
b3db1e1c
JM		 1557 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, NLM_F_DUMP,
1558 NL80211_CMD_GET_SCAN, 0);
1559 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3f5285e8 1560
b3db1e1c
JM		 1561 ret = send_and_recv_msgs(drv, msg, bss_info_handler, res);
1562 msg = NULL;
1563 if (ret == 0) {
1564 wpa_printf(MSG_DEBUG, "Received scan results (%lu BSSes)",
1565 (unsigned long) res->num);
1566 return res;
3f5285e8 1567 }
b3db1e1c
JM		 1568 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
1569 "(%s)", ret, strerror(-ret));
1570nla_put_failure:
1571 nlmsg_free(msg);
1572 wpa_scan_results_free(res);
1573 return NULL;
3f5285e8
JM		 1574}
1575
1576
1ad1cdc2
JM		 1577static int nl_set_encr(int ifindex, struct wpa_driver_nl80211_data *drv,
1578 wpa_alg alg, const u8 *addr, int key_idx, int set_tx,
1579 const u8 *seq, size_t seq_len,
1580 const u8 *key, size_t key_len)
3f5285e8 1581{
3f5285e8 1582 struct nl_msg *msg;
1ad1cdc2 1583 int ret;
3f5285e8 1584
1ad1cdc2
JM		 1585 wpa_printf(MSG_DEBUG, "%s: ifindex=%d alg=%d addr=%p key_idx=%d "
1586 "set_tx=%d seq_len=%lu key_len=%lu",
1587 __func__, ifindex, alg, addr, key_idx, set_tx,
3f5285e8
JM		 1588 (unsigned long) seq_len, (unsigned long) key_len);
1589
1590 msg = nlmsg_alloc();
1ad1cdc2
JM		 1591 if (!msg)
1592 return -ENOMEM;
3f5285e8
JM		 1593
1594 if (alg == WPA_ALG_NONE) {
1ad1cdc2
JM		 1595 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1596 0, NL80211_CMD_DEL_KEY, 0);
3f5285e8 1597 } else {
1ad1cdc2
JM		 1598 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1599 0, NL80211_CMD_NEW_KEY, 0);
3f5285e8
JM		 1600 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key);
1601 switch (alg) {
1602 case WPA_ALG_WEP:
1603 if (key_len == 5)
1604 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
1605 0x000FAC01);
1606 else
1607 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
1608 0x000FAC05);
1609 break;
1610 case WPA_ALG_TKIP:
1611 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 0x000FAC02);
1612 break;
1613 case WPA_ALG_CCMP:
1614 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 0x000FAC04);
1615 break;
2e24a366
JM		 1616 case WPA_ALG_IGTK:
1617 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 0x000FAC06);
1618 break;
3f5285e8 1619 default:
1ad1cdc2
JM		 1620 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
1621 "algorithm %d", __func__, alg);
3f5285e8
JM		 1622 nlmsg_free(msg);
1623 return -1;
1624 }
1625 }
1626
1ad1cdc2
JM		 1627 if (seq)
1628 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq);
1629
3f5285e8
JM		 1630 if (addr && os_memcmp(addr, "\xff\xff\xff\xff\xff\xff", ETH_ALEN) != 0)
1631 {
1632 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr));
1633 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
1634 }
1635 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1ad1cdc2 1636 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
3f5285e8 1637
1ad1cdc2
JM		 1638 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
1639 if (ret == -ENOENT && alg == WPA_ALG_NONE)
1640 ret = 0;
1641 if (ret)
1642 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)",
1643 ret, strerror(-ret));
3f5285e8 1644
1ad1cdc2
JM		 1645 /*
1646 * If we failed or don't need to set the default TX key (below),
1647 * we're done here.
1648 */
1649 if (ret || !set_tx || alg == WPA_ALG_NONE)
1650 return ret;
1651#ifdef HOSTAPD /* FIX: is this needed? */
1652 if (addr)
1653 return ret;
1654#endif /* HOSTAPD */
3f5285e8 1655
1ad1cdc2
JM		 1656 msg = nlmsg_alloc();
1657 if (!msg)
1658 return -ENOMEM;
3f5285e8 1659
1ad1cdc2
JM		 1660 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1661 0, NL80211_CMD_SET_KEY, 0);
1662 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1663 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
1664 if (alg == WPA_ALG_IGTK)
1665 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT);
1666 else
1667 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
3f5285e8 1668
1ad1cdc2
JM		 1669 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
1670 if (ret == -ENOENT)
1671 ret = 0;
1672 if (ret)
1673 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; "
1674 "err=%d %s)", ret, strerror(-ret));
1675 return ret;
3f5285e8
JM		 1676
1677nla_put_failure:
6241fcb1 1678 return -ENOBUFS;
3f5285e8
JM		 1679}
1680
1681
c811d5bc
JM		 1682#ifndef HOSTAPD
1683
1ad1cdc2
JM		 1684static int wpa_driver_nl80211_set_key(void *priv, wpa_alg alg,
1685 const u8 *addr, int key_idx,
1686 int set_tx, const u8 *seq,
1687 size_t seq_len,
1688 const u8 *key, size_t key_len)
1689{
1690 struct wpa_driver_nl80211_data *drv = priv;
1691 return nl_set_encr(drv->ifindex, drv, alg, addr, key_idx, set_tx, seq,
1692 seq_len, key, key_len);
1693}
1694
1695
c2a04078
JM		 1696static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
1697 const u8 *addr, int cmd, u16 reason_code)
1698{
1699 int ret = -1;
1700 struct nl_msg *msg;
1701
1702 msg = nlmsg_alloc();
1703 if (!msg)
1704 return -1;
1705
1706 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0, cmd, 0);
1707
1708 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1709 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code);
1710 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
1711
1712 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
1713 msg = NULL;
1714 if (ret) {
1715 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
1716 "(%s)", ret, strerror(-ret));
1717 goto nla_put_failure;
1718 }
1719 ret = 0;
1720
1721nla_put_failure:
1722 nlmsg_free(msg);
1723 return ret;
1724}
3f5285e8
JM		 1725
1726
1727static int wpa_driver_nl80211_deauthenticate(void *priv, const u8 *addr,
c2a04078 1728 int reason_code)
3f5285e8
JM		 1729{
1730 struct wpa_driver_nl80211_data *drv = priv;
c2a04078 1731 wpa_printf(MSG_DEBUG, "%s", __func__);
c2a04078
JM		 1732 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE,
1733 reason_code);
3f5285e8
JM		 1734}
1735
1736
1737static int wpa_driver_nl80211_disassociate(void *priv, const u8 *addr,
c2a04078 1738 int reason_code)
3f5285e8
JM		 1739{
1740 struct wpa_driver_nl80211_data *drv = priv;
c2a04078 1741 wpa_printf(MSG_DEBUG, "%s", __func__);
c2a04078
JM		 1742 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISASSOCIATE,
1743 reason_code);
3f5285e8
JM		 1744}
1745
1746
c2a04078
JM		 1747static int wpa_driver_nl80211_authenticate(
1748 void *priv, struct wpa_driver_auth_params *params)
1749{
1750 struct wpa_driver_nl80211_data *drv = priv;
a0b2f99b 1751 int ret = -1, i;
c2a04078
JM		 1752 struct nl_msg *msg;
1753 enum nl80211_auth_type type;
1754
1755 drv->associated = 0;
1756
1757 msg = nlmsg_alloc();
1758 if (!msg)
1759 return -1;
1760
1761 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)",
1762 drv->ifindex);
a0b2f99b
JM		 1763
1764 for (i = 0; i < 4; i++) {
1765 if (!params->wep_key[i])
1766 continue;
1767 wpa_driver_nl80211_set_key(drv, WPA_ALG_WEP, NULL, i,
1768 i == params->wep_tx_keyidx, NULL, 0,
1769 params->wep_key[i],
1770 params->wep_key_len[i]);
1771 }
1772
c2a04078
JM		 1773 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
1774 NL80211_CMD_AUTHENTICATE, 0);
1775
1776 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1777 if (params->bssid) {
1778 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
1779 MAC2STR(params->bssid));
1780 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
1781 }
1782 if (params->freq) {
1783 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
1784 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
1785 }
1786 if (params->ssid) {
1787 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
1788 params->ssid, params->ssid_len);
1789 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
1790 params->ssid);
1791 }
1792 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len);
1793 if (params->ie)
1794 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie);
1795 /*
1796 * TODO: if multiple auth_alg options enabled, try them one by one if
1797 * the AP rejects authentication due to unknown auth alg
1798 */
1799 if (params->auth_alg & AUTH_ALG_OPEN_SYSTEM)
1800 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1801 else if (params->auth_alg & AUTH_ALG_SHARED_KEY)
1802 type = NL80211_AUTHTYPE_SHARED_KEY;
1803 else if (params->auth_alg & AUTH_ALG_LEAP)
1804 type = NL80211_AUTHTYPE_NETWORK_EAP;
1805 else if (params->auth_alg & AUTH_ALG_FT)
1806 type = NL80211_AUTHTYPE_FT;
1807 else
1808 goto nla_put_failure;
1809 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
1810 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
1811
1812 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
1813 msg = NULL;
1814 if (ret) {
1815 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
1816 "(%s)", ret, strerror(-ret));
1817 goto nla_put_failure;
1818 }
1819 ret = 0;
1820 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send "
1821 "successfully");
1822
1823nla_put_failure:
1824 nlmsg_free(msg);
1825 return ret;
1826}
1827
c811d5bc
JM		 1828#endif /* HOSTAPD */
1829
c2a04078 1830
c3965310 1831#if defined(CONFIG_AP) || defined(HOSTAPD)
282d5590
JM		 1832
1833struct phy_info_arg {
1834 u16 *num_modes;
1835 struct hostapd_hw_modes *modes;
1836};
1837
1838static int phy_info_handler(struct nl_msg *msg, void *arg)
1839{
1840 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
1841 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1842 struct phy_info_arg *phy_info = arg;
1843
1844 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
1845
1846 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
1847 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
1848 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
1849 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
1850 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG },
1851 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG },
1852 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
1853 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
1854 };
1855
1856 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
1857 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
1858 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
1859 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = { .type = NLA_FLAG },
1860 };
1861
1862 struct nlattr *nl_band;
1863 struct nlattr *nl_freq;
1864 struct nlattr *nl_rate;
1865 int rem_band, rem_freq, rem_rate;
1866 struct hostapd_hw_modes *mode;
1867 int idx, mode_is_set;
1868
1869 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1870 genlmsg_attrlen(gnlh, 0), NULL);
1871
1872 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
1873 return NL_SKIP;
1874
1875 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) {
1876 mode = realloc(phy_info->modes, (*phy_info->num_modes + 1) * sizeof(*mode));
1877 if (!mode)
1878 return NL_SKIP;
1879 phy_info->modes = mode;
1880
1881 mode_is_set = 0;
1882
1883 mode = &phy_info->modes[*(phy_info->num_modes)];
1884 memset(mode, 0, sizeof(*mode));
1885 *(phy_info->num_modes) += 1;
1886
1887 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
1888 nla_len(nl_band), NULL);
1889
1890 if (tb_band[NL80211_BAND_ATTR_HT_CAPA]) {
1891 mode->ht_capab = nla_get_u16(
1892 tb_band[NL80211_BAND_ATTR_HT_CAPA]);
1893 }
1894
1895 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
1896 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
1897 nla_len(nl_freq), freq_policy);
1898 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
1899 continue;
1900 mode->num_channels++;
1901 }
1902
1903 mode->channels = calloc(mode->num_channels, sizeof(struct hostapd_channel_data));
1904 if (!mode->channels)
1905 return NL_SKIP;
1906
1907 idx = 0;
1908
1909 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
1910 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
1911 nla_len(nl_freq), freq_policy);
1912 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
1913 continue;
1914
1915 mode->channels[idx].freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
1916 mode->channels[idx].flag = 0;
1917
1918 if (!mode_is_set) {
1919 /* crude heuristic */
1920 if (mode->channels[idx].freq < 4000)
1921 mode->mode = HOSTAPD_MODE_IEEE80211B;
1922 else
1923 mode->mode = HOSTAPD_MODE_IEEE80211A;
1924 mode_is_set = 1;
1925 }
1926
1927 /* crude heuristic */
1928 if (mode->channels[idx].freq < 4000)
5a0ffb5f 1929 if (mode->channels[idx].freq == 2484)
282d5590
JM		 1930 mode->channels[idx].chan = 14;
1931 else
1932 mode->channels[idx].chan = (mode->channels[idx].freq - 2407) / 5;
1933 else
1934 mode->channels[idx].chan = mode->channels[idx].freq/5 - 1000;
1935
1936 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
1937 mode->channels[idx].flag |=
1938 HOSTAPD_CHAN_DISABLED;
1939 if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
1940 mode->channels[idx].flag |=
1941 HOSTAPD_CHAN_PASSIVE_SCAN;
1942 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS])
1943 mode->channels[idx].flag |=
1944 HOSTAPD_CHAN_NO_IBSS;
1945 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
1946 mode->channels[idx].flag |=
1947 HOSTAPD_CHAN_RADAR;
1948
1949 if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] &&
1950 !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
1951 mode->channels[idx].max_tx_power =
1952 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100;
1953
1954 idx++;
1955 }
1956
1957 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
1958 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
1959 nla_len(nl_rate), rate_policy);
1960 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
1961 continue;
1962 mode->num_rates++;
1963 }
1964
1965 mode->rates = calloc(mode->num_rates, sizeof(struct hostapd_rate_data));
1966 if (!mode->rates)
1967 return NL_SKIP;
1968
1969 idx = 0;
1970
1971 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
1972 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
1973 nla_len(nl_rate), rate_policy);
1974 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
1975 continue;
1976 mode->rates[idx].rate = nla_get_u32(tb_rate[NL80211_BITRATE_ATTR_RATE]);
1977
1978 /* crude heuristic */
1979 if (mode->mode == HOSTAPD_MODE_IEEE80211B &&
1980 mode->rates[idx].rate > 200)
1981 mode->mode = HOSTAPD_MODE_IEEE80211G;
1982
1983 if (tb_rate[NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE])
1984 mode->rates[idx].flags |= HOSTAPD_RATE_PREAMBLE2;
1985
1986 idx++;
1987 }
1988 }
1989
1990 return NL_SKIP;
1991}
1992
1993static struct hostapd_hw_modes *
1994wpa_driver_nl80211_add_11b(struct hostapd_hw_modes *modes, u16 *num_modes)
1995{
1996 u16 m;
1997 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
1998 int i, mode11g_idx = -1;
1999
2000 /* If only 802.11g mode is included, use it to construct matching
2001 * 802.11b mode data. */
2002
2003 for (m = 0; m < *num_modes; m++) {
2004 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
2005 return modes; /* 802.11b already included */
2006 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
2007 mode11g_idx = m;
2008 }
2009
2010 if (mode11g_idx < 0)
2011 return modes; /* 2.4 GHz band not supported at all */
2012
2013 nmodes = os_realloc(modes, (*num_modes + 1) * sizeof(*nmodes));
2014 if (nmodes == NULL)
2015 return modes; /* Could not add 802.11b mode */
2016
2017 mode = &nmodes[*num_modes];
2018 os_memset(mode, 0, sizeof(*mode));
2019 (*num_modes)++;
2020 modes = nmodes;
2021
2022 mode->mode = HOSTAPD_MODE_IEEE80211B;
2023
2024 mode11g = &modes[mode11g_idx];
2025 mode->num_channels = mode11g->num_channels;
2026 mode->channels = os_malloc(mode11g->num_channels *
2027 sizeof(struct hostapd_channel_data));
2028 if (mode->channels == NULL) {
2029 (*num_modes)--;
2030 return modes; /* Could not add 802.11b mode */
2031 }
2032 os_memcpy(mode->channels, mode11g->channels,
2033 mode11g->num_channels * sizeof(struct hostapd_channel_data));
2034
2035 mode->num_rates = 0;
2036 mode->rates = os_malloc(4 * sizeof(struct hostapd_rate_data));
2037 if (mode->rates == NULL) {
2038 os_free(mode->channels);
2039 (*num_modes)--;
2040 return modes; /* Could not add 802.11b mode */
2041 }
2042
2043 for (i = 0; i < mode11g->num_rates; i++) {
2044 if (mode11g->rates[i].rate > 110 ||
2045 mode11g->rates[i].flags &
2046 (HOSTAPD_RATE_ERP | HOSTAPD_RATE_OFDM))
2047 continue;
2048 mode->rates[mode->num_rates] = mode11g->rates[i];
2049 mode->num_rates++;
2050 if (mode->num_rates == 4)
2051 break;
2052 }
2053
2054 if (mode->num_rates == 0) {
2055 os_free(mode->channels);
2056 os_free(mode->rates);
2057 (*num_modes)--;
2058 return modes; /* No 802.11b rates */
2059 }
2060
2061 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
2062 "information");
2063
2064 return modes;
2065}
2066
2067
2068static struct hostapd_hw_modes *
2069wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
2070{
2071 struct wpa_driver_nl80211_data *drv = priv;
2072 struct nl_msg *msg;
2073 struct phy_info_arg result = {
2074 .num_modes = num_modes,
2075 .modes = NULL,
2076 };
2077
2078 *num_modes = 0;
2079 *flags = 0;
2080
2081 msg = nlmsg_alloc();
2082 if (!msg)
2083 return NULL;
2084
2085 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2086 0, NL80211_CMD_GET_WIPHY, 0);
2087
2088 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2089
2090 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0)
2091 return wpa_driver_nl80211_add_11b(result.modes, num_modes);
2092 nla_put_failure:
2093 return NULL;
2094}
2095
2096
2c2010ac
JM		 2097static int wpa_driver_nl80211_send_frame(struct wpa_driver_nl80211_data *drv,
2098 const void *data, size_t len,
2099 int encrypt)
2100{
2101 __u8 rtap_hdr[] = {
2102 0x00, 0x00, /* radiotap version */
2103 0x0e, 0x00, /* radiotap length */
2104 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */
2105 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */
2106 0x00, /* padding */
2107 0x00, 0x00, /* RX and TX flags to indicate that */
2108 0x00, 0x00, /* this is the injected frame directly */
2109 };
2110 struct iovec iov[2] = {
2111 {
2112 .iov_base = &rtap_hdr,
2113 .iov_len = sizeof(rtap_hdr),
2114 },
2115 {
2116 .iov_base = (void *) data,
2117 .iov_len = len,
2118 }
2119 };
2120 struct msghdr msg = {
2121 .msg_name = NULL,
2122 .msg_namelen = 0,
2123 .msg_iov = iov,
2124 .msg_iovlen = 2,
2125 .msg_control = NULL,
2126 .msg_controllen = 0,
2127 .msg_flags = 0,
2128 };
2129
2130 if (encrypt)
2131 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP;
2132
2133 return sendmsg(drv->monitor_sock, &msg, 0);
2134}
2135
2136
2137static int wpa_driver_nl80211_send_mlme(void *priv, const u8 *data,
2138 size_t data_len)
2139{
2140 struct wpa_driver_nl80211_data *drv = priv;
2141 struct ieee80211_mgmt *mgmt;
2142 int do_not_encrypt = 0;
2143 u16 fc;
2144
2145 mgmt = (struct ieee80211_mgmt *) data;
2146 fc = le_to_host16(mgmt->frame_control);
2147
2148 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
2149 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) {
2150 /*
2151 * Only one of the authentication frame types is encrypted.
2152 * In order for static WEP encryption to work properly (i.e.,
2153 * to not encrypt the frame), we need to tell mac80211 about
2154 * the frames that must not be encrypted.
2155 */
2156 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
2157 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction);
2158 if (auth_alg == WLAN_AUTH_OPEN ||
2159 (auth_alg == WLAN_AUTH_SHARED_KEY && auth_trans != 3))
2160 do_not_encrypt = 1;
2161 }
2162
2163 return wpa_driver_nl80211_send_frame(drv, data, data_len,
2164 !do_not_encrypt);
2165}
2166
2167
b4fd6fab
JM		 2168static int wpa_driver_nl80211_set_beacon_iface(int ifindex, void *priv,
2169 const u8 *head, size_t head_len,
2170 const u8 *tail, size_t tail_len,
2171 int dtim_period)
d2440ba0
JM		 2172{
2173 struct wpa_driver_nl80211_data *drv = priv;
2174 struct nl_msg *msg;
2175 u8 cmd = NL80211_CMD_NEW_BEACON;
2176 int ret;
b4fd6fab
JM		 2177 int beacon_set;
2178#ifdef HOSTAPD
2179 struct i802_bss *bss;
2180
2181 bss = get_bss(drv, ifindex);
2182 if (bss == NULL)
2183 return -ENOENT;
2184 beacon_set = bss->beacon_set;
2185#else /* HOSTAPD */
2186 beacon_set = drv->beacon_set;
2187#endif /* HOSTAPD */
d2440ba0
JM		 2188
2189 msg = nlmsg_alloc();
2190 if (!msg)
2191 return -ENOMEM;
2192
2193 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)",
b4fd6fab
JM		 2194 beacon_set);
2195 if (beacon_set)
d2440ba0
JM		 2196 cmd = NL80211_CMD_SET_BEACON;
2197
2198 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2199 0, cmd, 0);
2200 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, head_len, head);
2201 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, tail_len, tail);
b4fd6fab 2202 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
d2440ba0
JM		 2203 if (!drv->beacon_int)
2204 drv->beacon_int = 100;
2205 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, drv->beacon_int);
2206 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, dtim_period);
2207
2208 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2209 if (ret) {
2210 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)",
2211 ret, strerror(-ret));
b4fd6fab
JM		 2212 } else {
2213#ifdef HOSTAPD
2214 bss->beacon_set = 1;
2215#else /* HOSTAPD */
d2440ba0 2216 drv->beacon_set = 1;
b4fd6fab
JM		 2217#endif /* HOSTAPD */
2218 }
d2440ba0
JM		 2219 return ret;
2220 nla_put_failure:
2221 return -ENOBUFS;
2222}
2223
2224
2225static int wpa_driver_nl80211_set_beacon_int(void *priv, int value)
2226{
2227 struct wpa_driver_nl80211_data *drv = priv;
2228 struct nl_msg *msg;
2229
2230 drv->beacon_int = value;
2231
b4fd6fab
JM		 2232#ifdef HOSTAPD
2233 if (!drv->bss.beacon_set)
2234 return 0;
2235#else /* HOSTAPD */
d2440ba0
JM		 2236 if (!drv->beacon_set)
2237 return 0;
b4fd6fab 2238#endif /* HOSTAPD */
d2440ba0
JM		 2239
2240 msg = nlmsg_alloc();
2241 if (!msg)
2242 return -ENOMEM;
2243
b4fd6fab 2244 wpa_printf(MSG_DEBUG, "nl80211: Set beacon interval %d", value);
d2440ba0
JM		 2245 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2246 0, NL80211_CMD_SET_BEACON, 0);
2247 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2248
2249 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, value);
2250
2251 return send_and_recv_msgs(drv, msg, NULL, NULL);
2252 nla_put_failure:
2253 return -ENOBUFS;
2254}
2255
2256
f019981a
JM		 2257static int wpa_driver_nl80211_set_freq(struct wpa_driver_nl80211_data *drv,
2258 int freq, int ht_enabled,
2259 int sec_channel_offset)
1581b38b
JM		 2260{
2261 struct nl_msg *msg;
d2440ba0 2262 int ret;
1581b38b
JM		 2263
2264 msg = nlmsg_alloc();
2265 if (!msg)
2266 return -1;
2267
2268 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
2269 NL80211_CMD_SET_WIPHY, 0);
2270
2271 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
f019981a
JM		 2272 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
2273 if (ht_enabled) {
2274 switch (sec_channel_offset) {
2275 case -1:
2276 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2277 NL80211_CHAN_HT40MINUS);
2278 break;
2279 case 1:
2280 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2281 NL80211_CHAN_HT40PLUS);
2282 break;
2283 default:
2284 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2285 NL80211_CHAN_HT20);
2286 break;
2287 }
2288 }
1581b38b 2289
d2440ba0
JM		 2290 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2291 if (ret == 0)
1581b38b 2292 return 0;
f019981a
JM		 2293 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): "
2294 "%d (%s)", freq, ret, strerror(-ret));
1581b38b
JM		 2295nla_put_failure:
2296 return -1;
2297}
2298
f019981a
JM		 2299#endif /* CONFIG_AP || HOSTAPD */
2300
2301
2302#ifdef CONFIG_AP
2303
2304static int wpa_driver_nl80211_set_beacon(void *priv,
2305 const u8 *head, size_t head_len,
2306 const u8 *tail, size_t tail_len,
2307 int dtim_period)
2308{
2309 struct wpa_driver_nl80211_data *drv = priv;
2310 return wpa_driver_nl80211_set_beacon_iface(drv->ifindex, priv,
2311 head, head_len,
2312 tail, tail_len,
2313 dtim_period);
2314}
2315
2135f224
JM		 2316#endif /* CONFIG_AP */
2317
2318#if defined(CONFIG_AP) || defined(HOSTAPD)
1581b38b 2319
0915d02c
JM		 2320static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
2321 int ifidx)
2322{
2323 struct nl_msg *msg;
2324
2135f224
JM		 2325#ifdef HOSTAPD
2326 /* stop listening for EAPOL on this interface */
2327 del_ifidx(drv, ifidx);
2328#endif /* HOSTAPD */
2329
0915d02c
JM		 2330 msg = nlmsg_alloc();
2331 if (!msg)
2332 goto nla_put_failure;
2333
2334 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2335 0, NL80211_CMD_DEL_INTERFACE, 0);
2336 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx);
2337
2338 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
2339 return;
2340 nla_put_failure:
2341 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d).\n",
2342 ifidx);
2343}
2344
2345
2346static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
2135f224
JM		 2347 const char *ifname, enum nl80211_iftype iftype,
2348 const u8 *addr)
0915d02c
JM		 2349{
2350 struct nl_msg *msg, *flags = NULL;
2351 int ifidx;
2352 int ret = -ENOBUFS;
2353
2354 msg = nlmsg_alloc();
2355 if (!msg)
2356 return -1;
2357
2358 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2359 0, NL80211_CMD_NEW_INTERFACE, 0);
2360 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2361 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname);
2362 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype);
2363
2364 if (iftype == NL80211_IFTYPE_MONITOR) {
2365 int err;
2366
2367 flags = nlmsg_alloc();
2368 if (!flags)
2369 goto nla_put_failure;
2370
2371 NLA_PUT_FLAG(flags, NL80211_MNTR_FLAG_COOK_FRAMES);
2372
2373 err = nla_put_nested(msg, NL80211_ATTR_MNTR_FLAGS, flags);
2374
2375 nlmsg_free(flags);
2376
2377 if (err)
2378 goto nla_put_failure;
2379 }
2380
2381 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2382 if (ret) {
2383 nla_put_failure:
2384 wpa_printf(MSG_ERROR, "Failed to create interface %s.",
2385 ifname);
2386 return ret;
2387 }
2388
2389 ifidx = if_nametoindex(ifname);
2390
2391 if (ifidx <= 0)
2392 return -1;
2393
2135f224
JM		 2394#ifdef HOSTAPD
2395 /* start listening for EAPOL on this interface */
2396 add_ifidx(drv, ifidx);
2397
41d931ee
JM		 2398 if (addr && iftype == NL80211_IFTYPE_AP &&
2399 set_ifhwaddr(drv, ifname, addr)) {
2400 nl80211_remove_iface(drv, ifidx);
2401 return -1;
2135f224
JM		 2402 }
2403#endif /* HOSTAPD */
2404
0915d02c
JM		 2405 return ifidx;
2406}
2407
2135f224
JM		 2408#endif /* CONFIG_AP || HOSTAPD */
2409
2410#ifdef CONFIG_AP
0915d02c 2411
0915d02c
JM		 2412void ap_tx_status(void *ctx, const u8 *addr,
2413 const u8 *buf, size_t len, int ack);
2414void ap_rx_from_unknown_sta(void *ctx, const u8 *addr);
2415void ap_mgmt_rx(void *ctx, u8 *buf, size_t len, u16 stype,
2416 struct hostapd_frame_info *fi);
2417void ap_mgmt_tx_cb(void *ctx, u8 *buf, size_t len, u16 stype, int ok);
2418
072ad14c
JM		 2419#endif /* CONFIG_AP */
2420
2421#if defined(CONFIG_AP) || defined(HOSTAPD)
0915d02c
JM		 2422
2423static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok)
2424{
2425 struct ieee80211_hdr *hdr;
2426 u16 fc, type, stype;
2427
2428 hdr = (struct ieee80211_hdr *) buf;
2429 fc = le_to_host16(hdr->frame_control);
2430
2431 type = WLAN_FC_GET_TYPE(fc);
2432 stype = WLAN_FC_GET_STYPE(fc);
2433
2434 switch (type) {
2435 case WLAN_FC_TYPE_MGMT:
2436 wpa_printf(MSG_DEBUG, "MGMT (TX callback) %s",
2437 ok ? "ACK" : "fail");
072ad14c
JM		 2438#ifdef HOSTAPD
2439 hostapd_mgmt_tx_cb(ctx, buf, len, stype, ok);
2440#else /* HOSTAPD */
0915d02c 2441 ap_mgmt_tx_cb(ctx, buf, len, stype, ok);
072ad14c 2442#endif /* HOSTAPD */
0915d02c
JM		 2443 break;
2444 case WLAN_FC_TYPE_CTRL:
2445 wpa_printf(MSG_DEBUG, "CTRL (TX callback) %s",
2446 ok ? "ACK" : "fail");
2447 break;
2448 case WLAN_FC_TYPE_DATA:
072ad14c
JM		 2449#ifdef HOSTAPD
2450 hostapd_tx_status(ctx, hdr->addr1, buf, len, ok);
2451#else /* HOSTAPD */
0915d02c 2452 ap_tx_status(ctx, hdr->addr1, buf, len, ok);
072ad14c 2453#endif /* HOSTAPD */
0915d02c
JM		 2454 break;
2455 default:
2456 wpa_printf(MSG_DEBUG, "unknown TX callback frame type %d",
2457 type);
2458 break;
2459 }
2460}
2461
2462
4b9841d3
JM		 2463static void from_unknown_sta(struct wpa_driver_nl80211_data *drv,
2464 struct ieee80211_hdr *hdr, size_t len)
0915d02c 2465{
7da3abe7 2466#ifdef HOSTAPD
4b9841d3
JM		 2467 hostapd_rx_from_unknown_sta(drv->ctx, hdr, len);
2468#else /* HOSTAPD */
2469 ap_rx_from_unknown_sta(drv->ctx, hdr->addr2);
7da3abe7 2470#endif /* HOSTAPD */
4b9841d3 2471}
0915d02c 2472
4b9841d3
JM		 2473
2474static void handle_frame(struct wpa_driver_nl80211_data *drv,
2475 u8 *buf, size_t len,
2476 struct hostapd_frame_info *hfi)
2477{
2478 struct ieee80211_hdr *hdr;
2479 u16 fc, stype;
0915d02c
JM		 2480
2481 hdr = (struct ieee80211_hdr *) buf;
2482 fc = le_to_host16(hdr->frame_control);
0915d02c
JM		 2483 stype = WLAN_FC_GET_STYPE(fc);
2484
4b9841d3 2485 switch (WLAN_FC_GET_TYPE(fc)) {
0915d02c
JM		 2486 case WLAN_FC_TYPE_MGMT:
2487 if (stype != WLAN_FC_STYPE_BEACON &&
2488 stype != WLAN_FC_STYPE_PROBE_REQ)
2489 wpa_printf(MSG_MSGDUMP, "MGMT");
7da3abe7 2490#ifdef HOSTAPD
4b9841d3 2491 hostapd_mgmt_rx(drv->ctx, buf, len, stype, hfi);
7da3abe7 2492#else /* HOSTAPD */
4b9841d3 2493 ap_mgmt_rx(drv->ctx, buf, len, stype, hfi);
7da3abe7 2494#endif /* HOSTAPD */
0915d02c
JM		 2495 break;
2496 case WLAN_FC_TYPE_CTRL:
2497 /* can only get here with PS-Poll frames */
2498 wpa_printf(MSG_DEBUG, "CTRL");
4b9841d3 2499 from_unknown_sta(drv, hdr, len);
0915d02c
JM		 2500 break;
2501 case WLAN_FC_TYPE_DATA:
4b9841d3 2502 from_unknown_sta(drv, hdr, len);
0915d02c
JM		 2503 break;
2504 }
2505}
2506
2507
2508static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx)
2509{
2510 struct wpa_driver_nl80211_data *drv = eloop_ctx;
2511 int len;
2512 unsigned char buf[3000];
2513 struct ieee80211_radiotap_iterator iter;
2514 int ret;
2515 struct hostapd_frame_info hfi;
4b9841d3 2516 int injected = 0, failed = 0, rxflags = 0;
0915d02c
JM		 2517
2518 len = recv(sock, buf, sizeof(buf), 0);
2519 if (len < 0) {
2520 perror("recv");
2521 return;
2522 }
2523
2524 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) {
2525 printf("received invalid radiotap frame\n");
2526 return;
2527 }
2528
2529 memset(&hfi, 0, sizeof(hfi));
2530
2531 while (1) {
2532 ret = ieee80211_radiotap_iterator_next(&iter);
2533 if (ret == -ENOENT)
2534 break;
2535 if (ret) {
2536 printf("received invalid radiotap frame (%d)\n", ret);
2537 return;
2538 }
2539 switch (iter.this_arg_index) {
2540 case IEEE80211_RADIOTAP_FLAGS:
2541 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS)
2542 len -= 4;
2543 break;
2544 case IEEE80211_RADIOTAP_RX_FLAGS:
2545 rxflags = 1;
2546 break;
2547 case IEEE80211_RADIOTAP_TX_FLAGS:
2548 injected = 1;
2549 failed = le_to_host16((*(uint16_t *) iter.this_arg)) &
2550 IEEE80211_RADIOTAP_F_TX_FAIL;
2551 break;
2552 case IEEE80211_RADIOTAP_DATA_RETRIES:
2553 break;
2554 case IEEE80211_RADIOTAP_CHANNEL:
2555 /* TODO convert from freq/flags to channel number
2556 hfi.channel = XXX;
2557 hfi.phytype = XXX;
2558 */
2559 break;
2560 case IEEE80211_RADIOTAP_RATE:
2561 hfi.datarate = *iter.this_arg * 5;
2562 break;
2563 case IEEE80211_RADIOTAP_DB_ANTSIGNAL:
2564 hfi.ssi_signal = *iter.this_arg;
2565 break;
2566 }
2567 }
2568
2569 if (rxflags && injected)
2570 return;
2571
2572 if (!injected)
4b9841d3
JM		 2573 handle_frame(drv, buf + iter.max_length,
2574 len - iter.max_length, &hfi);
0915d02c 2575 else
4b9841d3
JM		 2576 handle_tx_callback(drv->ctx, buf + iter.max_length,
2577 len - iter.max_length, !failed);
0915d02c
JM		 2578}
2579
2580
2581/*
2582 * we post-process the filter code later and rewrite
2583 * this to the offset to the last instruction
2584 */
2585#define PASS 0xFF
2586#define FAIL 0xFE
2587
2588static struct sock_filter msock_filter_insns[] = {
2589 /*
2590 * do a little-endian load of the radiotap length field
2591 */
2592 /* load lower byte into A */
2593 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2),
2594 /* put it into X (== index register) */
2595 BPF_STMT(BPF_MISC| BPF_TAX, 0),
2596 /* load upper byte into A */
2597 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3),
2598 /* left-shift it by 8 */
2599 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8),
2600 /* or with X */
2601 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0),
2602 /* put result into X */
2603 BPF_STMT(BPF_MISC| BPF_TAX, 0),
2604
2605 /*
2606 * Allow management frames through, this also gives us those
2607 * management frames that we sent ourselves with status
2608 */
2609 /* load the lower byte of the IEEE 802.11 frame control field */
2610 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
2611 /* mask off frame type and version */
2612 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF),
2613 /* accept frame if it's both 0, fall through otherwise */
2614 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0),
2615
2616 /*
2617 * TODO: add a bit to radiotap RX flags that indicates
2618 * that the sending station is not associated, then
2619 * add a filter here that filters on our DA and that flag
2620 * to allow us to deauth frames to that bad station.
2621 *
2622 * Not a regression -- we didn't do it before either.
2623 */
2624
2625#if 0
2626 /*
2627 * drop non-data frames, WDS frames
2628 */
2629 /* load the lower byte of the frame control field */
2630 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
2631 /* mask off QoS bit */
2632 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c),
2633 /* drop non-data frames */
2634 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL),
2635 /* load the upper byte of the frame control field */
2636 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
2637 /* mask off toDS/fromDS */
2638 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03),
2639 /* drop WDS frames */
2640 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, FAIL, 0),
2641#endif
2642
2643 /*
2644 * add header length to index
2645 */
2646 /* load the lower byte of the frame control field */
2647 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
2648 /* mask off QoS bit */
2649 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80),
2650 /* right shift it by 6 to give 0 or 2 */
2651 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6),
2652 /* add data frame header length */
2653 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24),
2654 /* add index, was start of 802.11 header */
2655 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0),
2656 /* move to index, now start of LL header */
2657 BPF_STMT(BPF_MISC | BPF_TAX, 0),
2658
2659 /*
2660 * Accept empty data frames, we use those for
2661 * polling activity.
2662 */
2663 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0),
2664 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0),
2665
2666 /*
2667 * Accept EAPOL frames
2668 */
2669 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0),
2670 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL),
2671 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4),
2672 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL),
2673
2674 /* keep these last two statements or change the code below */
2675 /* return 0 == "DROP" */
2676 BPF_STMT(BPF_RET | BPF_K, 0),
2677 /* return ~0 == "keep all" */
2678 BPF_STMT(BPF_RET | BPF_K, ~0),
2679};
2680
2681static struct sock_fprog msock_filter = {
2682 .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]),
2683 .filter = msock_filter_insns,
2684};
2685
2686
2687static int add_monitor_filter(int s)
2688{
2689 int idx;
2690
2691 /* rewrite all PASS/FAIL jump offsets */
2692 for (idx = 0; idx < msock_filter.len; idx++) {
2693 struct sock_filter *insn = &msock_filter_insns[idx];
2694
2695 if (BPF_CLASS(insn->code) == BPF_JMP) {
2696 if (insn->code == (BPF_JMP|BPF_JA)) {
2697 if (insn->k == PASS)
2698 insn->k = msock_filter.len - idx - 2;
2699 else if (insn->k == FAIL)
2700 insn->k = msock_filter.len - idx - 3;
2701 }
2702
2703 if (insn->jt == PASS)
2704 insn->jt = msock_filter.len - idx - 2;
2705 else if (insn->jt == FAIL)
2706 insn->jt = msock_filter.len - idx - 3;
2707
2708 if (insn->jf == PASS)
2709 insn->jf = msock_filter.len - idx - 2;
2710 else if (insn->jf == FAIL)
2711 insn->jf = msock_filter.len - idx - 3;
2712 }
2713 }
2714
2715 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER,
2716 &msock_filter, sizeof(msock_filter))) {
2717 perror("SO_ATTACH_FILTER");
2718 return -1;
2719 }
2720
2721 return 0;
2722}
2723
2724
2725static int
2726nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv)
2727{
2728 char buf[IFNAMSIZ];
2729 struct sockaddr_ll ll;
2730 int optval;
2731 socklen_t optlen;
0915d02c
JM		 2732
2733 snprintf(buf, IFNAMSIZ, "mon.%s", drv->ifname);
2734 buf[IFNAMSIZ - 1] = '\0';
2735
2736 drv->monitor_ifidx =
2135f224 2737 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL);
0915d02c
JM		 2738
2739 if (drv->monitor_ifidx < 0)
2740 return -1;
2741
2135f224 2742 if (hostapd_set_iface_flags(drv, buf, 1))
0915d02c 2743 goto error;
0915d02c
JM		 2744
2745 memset(&ll, 0, sizeof(ll));
2746 ll.sll_family = AF_PACKET;
2747 ll.sll_ifindex = drv->monitor_ifidx;
2748 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
2749 if (drv->monitor_sock < 0) {
2750 perror("socket[PF_PACKET,SOCK_RAW]");
2751 goto error;
2752 }
2753
2754 if (add_monitor_filter(drv->monitor_sock)) {
2755 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor "
2756 "interface; do filtering in user space");
2757 /* This works, but will cost in performance. */
2758 }
2759
2135f224 2760 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) {
0915d02c
JM		 2761 perror("monitor socket bind");
2762 goto error;
2763 }
2764
2765 optlen = sizeof(optval);
2766 optval = 20;
2767 if (setsockopt
2768 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) {
2769 perror("Failed to set socket priority");
2770 goto error;
2771 }
2772
2773 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read,
2774 drv, NULL)) {
2775 printf("Could not register monitor read socket\n");
2776 goto error;
2777 }
2778
2779 return 0;
2780 error:
2781 nl80211_remove_iface(drv, drv->monitor_ifidx);
2782 return -1;
2783}
2784
2135f224
JM		 2785#endif /* CONFIG_AP || HOSTAPD */
2786
2787#ifdef CONFIG_AP
0915d02c 2788
1581b38b
JM		 2789static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv,
2790 struct wpa_driver_associate_params *params)
2791{
0915d02c
JM		 2792 if (drv->monitor_ifidx < 0 &&
2793 nl80211_create_monitor_interface(drv))
2794 return -1;
2795
1581b38b 2796 if (wpa_driver_nl80211_set_mode(drv, params->mode) ||
f019981a 2797 wpa_driver_nl80211_set_freq(drv, params->freq, 0, 0)) {
0915d02c
JM		 2798 nl80211_remove_iface(drv, drv->monitor_ifidx);
2799 drv->monitor_ifidx = -1;
1581b38b 2800 return -1;
0915d02c 2801 }
1581b38b
JM		 2802
2803 /* TODO: setup monitor interface (and add code somewhere to remove this
2804 * when AP mode is stopped; associate with mode != 2 or drv_deinit) */
1581b38b
JM		 2805
2806 return 0;
2807}
2808#endif /* CONFIG_AP */
2809
2810
c811d5bc 2811#ifndef HOSTAPD
c2a04078
JM		 2812static int wpa_driver_nl80211_associate(
2813 void *priv, struct wpa_driver_associate_params *params)
2814{
2815 struct wpa_driver_nl80211_data *drv = priv;
2816 int ret = -1;
2817 struct nl_msg *msg;
2818
1581b38b
JM		 2819#ifdef CONFIG_AP
2820 if (params->mode == 2)
2821 return wpa_driver_nl80211_ap(drv, params);
2822#endif /* CONFIG_AP */
2823
37b7d082 2824#ifndef NO_WEXT
36b15723
JM		 2825 wpa_driver_nl80211_set_auth_param(drv, IW_AUTH_DROP_UNENCRYPTED,
2826 params->drop_unencrypted);
37b7d082 2827#endif /* NO_WEXT */
36b15723 2828
c2a04078
JM		 2829 drv->associated = 0;
2830
2831 msg = nlmsg_alloc();
2832 if (!msg)
2833 return -1;
2834
2835 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)",
2836 drv->ifindex);
2837 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
2838 NL80211_CMD_ASSOCIATE, 0);
2839
2840 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2841 if (params->bssid) {
2842 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
2843 MAC2STR(params->bssid));
2844 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
2845 }
2846 if (params->freq) {
2847 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
2848 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
2849 }
2850 if (params->ssid) {
2851 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
2852 params->ssid, params->ssid_len);
2853 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
2854 params->ssid);
fd05d64e
JM		 2855 if (params->ssid_len > sizeof(drv->ssid))
2856 goto nla_put_failure;
2857 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
2858 drv->ssid_len = params->ssid_len;
c2a04078
JM		 2859 }
2860 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
2861 if (params->wpa_ie)
2862 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
2863 params->wpa_ie);
2864
2865 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2866 msg = NULL;
2867 if (ret) {
2868 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
2869 "(%s)", ret, strerror(-ret));
2870 goto nla_put_failure;
2871 }
2872 ret = 0;
2873 wpa_printf(MSG_DEBUG, "nl80211: Association request send "
2874 "successfully");
2875
2876nla_put_failure:
2877 nlmsg_free(msg);
2878 return ret;
2879}
c811d5bc 2880#endif /* HOSTAPD */
3f5285e8
JM		 2881
2882
ad1e68e6
JM		 2883static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv,
2884 int ifindex, int mode)
3f5285e8 2885{
3f5285e8 2886 struct nl_msg *msg;
ad1e68e6
JM		 2887 int ret = -ENOBUFS;
2888
2889 msg = nlmsg_alloc();
2890 if (!msg)
2891 return -ENOMEM;
2892
2893 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2894 0, NL80211_CMD_SET_INTERFACE, 0);
2895 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
2896 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode);
2897
2898 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2899 if (!ret)
2900 return 0;
2901nla_put_failure:
2902 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:"
2903 " %d (%s)", ifindex, mode, ret, strerror(-ret));
2904 return ret;
2905}
2906
2907
2908static int wpa_driver_nl80211_set_mode(void *priv, int mode)
2909{
2910 struct wpa_driver_nl80211_data *drv = priv;
2911 int ret = -1;
1581b38b
JM		 2912 int nlmode;
2913
2914 switch (mode) {
2915 case 0:
2916 nlmode = NL80211_IFTYPE_STATION;
2917 break;
2918 case 1:
2919 nlmode = NL80211_IFTYPE_ADHOC;
2920 break;
2921 case 2:
2922 nlmode = NL80211_IFTYPE_AP;
2923 break;
2924 default:
2925 return -1;
2926 }
3f5285e8 2927
ad1e68e6
JM		 2928 if (nl80211_set_mode(drv, drv->ifindex, nlmode) == 0) {
2929 drv->nlmode = nlmode;
6241fcb1 2930 return 0;
ad1e68e6 2931 }
3f5285e8 2932
ad1e68e6
JM		 2933 if (nlmode == drv->nlmode)
2934 return 0; /* Already in the requested mode */
3f5285e8 2935
3f5285e8
JM		 2936 /* mac80211 doesn't allow mode changes while the device is up, so
2937 * take the device down, try to set the mode again, and bring the
2938 * device back up.
2939 */
2135f224 2940 if (hostapd_set_iface_flags(drv, drv->ifname, 0) == 0) {
3f5285e8 2941 /* Try to set the mode again while the interface is down */
ad1e68e6 2942 ret = nl80211_set_mode(drv, drv->ifindex, nlmode);
2135f224
JM		 2943 if (hostapd_set_iface_flags(drv, drv->ifname, 1))
2944 ret = -1;
3f5285e8
JM		 2945 }
2946
ad1e68e6
JM		 2947 if (!ret)
2948 drv->nlmode = nlmode;
2949
3f5285e8
JM		 2950 return ret;
2951}
2952
2953
c811d5bc
JM		 2954#ifndef HOSTAPD
2955
3f5285e8
JM		 2956static int wpa_driver_nl80211_get_capa(void *priv,
2957 struct wpa_driver_capa *capa)
2958{
2959 struct wpa_driver_nl80211_data *drv = priv;
2960 if (!drv->has_capability)
2961 return -1;
2962 os_memcpy(capa, &drv->capa, sizeof(*capa));
2963 return 0;
2964}
2965
2966
2967static int wpa_driver_nl80211_set_operstate(void *priv, int state)
2968{
2969 struct wpa_driver_nl80211_data *drv = priv;
2970
2971 wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)",
2972 __func__, drv->operstate, state, state ? "UP" : "DORMANT");
2973 drv->operstate = state;
2974 return wpa_driver_nl80211_send_oper_ifla(
2975 drv, -1, state ? IF_OPER_UP : IF_OPER_DORMANT);
2976}
2977
c811d5bc
JM		 2978#endif /* HOSTAPD */
2979
3f5285e8 2980
c5121837
JM		 2981#ifdef HOSTAPD
2982
2983static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
2984
c5121837
JM		 2985
2986static struct i802_bss * get_bss(struct wpa_driver_nl80211_data *drv,
b4fd6fab 2987 int ifindex)
c5121837
JM		 2988{
2989 struct i802_bss *bss = &drv->bss;
2990 while (bss) {
b4fd6fab 2991 if (ifindex == bss->ifindex)
c5121837
JM		 2992 return bss;
2993 bss = bss->next;
2994 }
b4fd6fab 2995 wpa_printf(MSG_DEBUG, "nl80211: get_bss(%d) failed", ifindex);
c5121837
JM		 2996 return NULL;
2997}
2998
2999
3000static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
3001{
3002 int i;
3003 int *old;
3004
3005 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d",
3006 ifidx);
3007 for (i = 0; i < drv->num_if_indices; i++) {
3008 if (drv->if_indices[i] == 0) {
3009 drv->if_indices[i] = ifidx;
3010 return;
3011 }
3012 }
3013
3014 if (drv->if_indices != drv->default_if_indices)
3015 old = drv->if_indices;
3016 else
3017 old = NULL;
3018
3019 drv->if_indices = realloc(old,
3020 sizeof(int) * (drv->num_if_indices + 1));
3021 if (!drv->if_indices) {
3022 if (!old)
3023 drv->if_indices = drv->default_if_indices;
3024 else
3025 drv->if_indices = old;
3026 wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
3027 "interfaces");
3028 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
3029 return;
3030 }
3031 drv->if_indices[drv->num_if_indices] = ifidx;
3032 drv->num_if_indices++;
3033}
3034
3035
3036static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
3037{
3038 int i;
3039
3040 for (i = 0; i < drv->num_if_indices; i++) {
3041 if (drv->if_indices[i] == ifidx) {
3042 drv->if_indices[i] = 0;
3043 break;
3044 }
3045 }
3046}
3047
3048
3049static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
3050{
3051 int i;
3052
3053 for (i = 0; i < drv->num_if_indices; i++)
3054 if (drv->if_indices[i] == ifidx)
3055 return 1;
3056
3057 return 0;
3058}
3059
3060
c5121837
JM		 3061static int i802_set_key(const char *iface, void *priv, wpa_alg alg,
3062 const u8 *addr, int key_idx, int set_tx, const u8 *seq,
3063 size_t seq_len, const u8 *key, size_t key_len)
3064{
3065 struct wpa_driver_nl80211_data *drv = priv;
1ad1cdc2
JM		 3066 return nl_set_encr(if_nametoindex(iface), drv, alg, addr, key_idx,
3067 set_tx, seq, seq_len, key, key_len);
c5121837
JM		 3068}
3069
3070
3071static inline int min_int(int a, int b)
3072{
3073 if (a < b)
3074 return a;
3075 return b;
3076}
3077
3078
3079static int get_key_handler(struct nl_msg *msg, void *arg)
3080{
3081 struct nlattr *tb[NL80211_ATTR_MAX + 1];
3082 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3083
3084 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3085 genlmsg_attrlen(gnlh, 0), NULL);
3086
3087 /*
3088 * TODO: validate the key index and mac address!
3089 * Otherwise, there's a race condition as soon as
3090 * the kernel starts sending key notifications.
3091 */
3092
3093 if (tb[NL80211_ATTR_KEY_SEQ])
3094 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]),
3095 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6));
3096 return NL_SKIP;
3097}
3098
3099
3100static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
3101 int idx, u8 *seq)
3102{
3103 struct wpa_driver_nl80211_data *drv = priv;
3104 struct nl_msg *msg;
3105
3106 msg = nlmsg_alloc();
3107 if (!msg)
3108 return -ENOMEM;
3109
3110 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3111 0, NL80211_CMD_GET_KEY, 0);
3112
3113 if (addr)
3114 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
3115 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
3116 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
3117
3118 memset(seq, 0, 6);
3119
3120 return send_and_recv_msgs(drv, msg, get_key_handler, seq);
3121 nla_put_failure:
3122 return -ENOBUFS;
3123}
3124
3125
3126static int i802_set_rate_sets(void *priv, int *supp_rates, int *basic_rates,
3127 int mode)
3128{
3129 struct wpa_driver_nl80211_data *drv = priv;
3130 struct nl_msg *msg;
3131 u8 rates[NL80211_MAX_SUPP_RATES];
3132 u8 rates_len = 0;
3133 int i;
3134
3135 msg = nlmsg_alloc();
3136 if (!msg)
3137 return -ENOMEM;
3138
3139 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
3140 NL80211_CMD_SET_BSS, 0);
3141
3142 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; i++)
3143 rates[rates_len++] = basic_rates[i] / 5;
3144
3145 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates);
3146
3147 /* TODO: multi-BSS support */
3148 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->ifname));
3149
3150 return send_and_recv_msgs(drv, msg, NULL, NULL);
3151 nla_put_failure:
3152 return -ENOBUFS;
3153}
3154
3155
c5121837
JM		 3156/* Set kernel driver on given frequency (MHz) */
3157static int i802_set_freq(void *priv, struct hostapd_freq_params *freq)
3158{
3159 struct wpa_driver_nl80211_data *drv = priv;
f019981a
JM		 3160 return wpa_driver_nl80211_set_freq(drv, freq->freq, freq->ht_enabled,
3161 freq->sec_channel_offset);
c5121837
JM		 3162}
3163
3164
3165static int i802_set_rts(void *priv, int rts)
3166{
37b7d082
JM		 3167#ifdef NO_WEXT
3168 return -1;
3169#else /* NO_WEXT */
c5121837
JM		 3170 struct wpa_driver_nl80211_data *drv = priv;
3171 struct iwreq iwr;
3172
3173 memset(&iwr, 0, sizeof(iwr));
3174 os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
3175 iwr.u.rts.value = rts;
3176 iwr.u.rts.fixed = 1;
3177
3178 if (ioctl(drv->ioctl_sock, SIOCSIWRTS, &iwr) < 0) {
3179 perror("ioctl[SIOCSIWRTS]");
3180 return -1;
3181 }
3182
3183 return 0;
37b7d082 3184#endif /* NO_WEXT */
c5121837
JM		 3185}
3186
3187
3188static int i802_set_frag(void *priv, int frag)
3189{
37b7d082
JM		 3190#ifdef NO_WEXT
3191 return -1;
3192#else /* NO_WEXT */
c5121837
JM		 3193 struct wpa_driver_nl80211_data *drv = priv;
3194 struct iwreq iwr;
3195
3196 memset(&iwr, 0, sizeof(iwr));
3197 os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
3198 iwr.u.frag.value = frag;
3199 iwr.u.frag.fixed = 1;
3200
3201 if (ioctl(drv->ioctl_sock, SIOCSIWFRAG, &iwr) < 0) {
3202 perror("ioctl[SIOCSIWFRAG]");
3203 return -1;
3204 }
3205
3206 return 0;
37b7d082 3207#endif /* NO_WEXT */
c5121837
JM		 3208}
3209
3210
3211static int i802_set_retry(void *priv, int short_retry, int long_retry)
3212{
37b7d082
JM		 3213#ifdef NO_WEXT
3214 return -1;
3215#else /* NO_WEXT */
c5121837
JM		 3216 struct wpa_driver_nl80211_data *drv = priv;
3217 struct iwreq iwr;
3218
3219 memset(&iwr, 0, sizeof(iwr));
3220 os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
3221
3222 iwr.u.retry.value = short_retry;
3223 iwr.u.retry.flags = IW_RETRY_LIMIT | IW_RETRY_MIN;
3224 if (ioctl(drv->ioctl_sock, SIOCSIWRETRY, &iwr) < 0) {
3225 perror("ioctl[SIOCSIWRETRY(short)]");
3226 return -1;
3227 }
3228
3229 iwr.u.retry.value = long_retry;
3230 iwr.u.retry.flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
3231 if (ioctl(drv->ioctl_sock, SIOCSIWRETRY, &iwr) < 0) {
3232 perror("ioctl[SIOCSIWRETRY(long)]");
3233 return -1;
3234 }
3235
3236 return 0;
37b7d082 3237#endif /* NO_WEXT */
c5121837
JM		 3238}
3239
3240
3241static int i802_flush(void *priv)
3242{
3243 struct wpa_driver_nl80211_data *drv = priv;
3244 struct nl_msg *msg;
3245
3246 msg = nlmsg_alloc();
3247 if (!msg)
3248 return -1;
3249
3250 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3251 0, NL80211_CMD_DEL_STATION, 0);
3252
3253 /*
3254 * XXX: FIX! this needs to flush all VLANs too
3255 */
3256 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
3257 if_nametoindex(drv->ifname));
3258
3259 return send_and_recv_msgs(drv, msg, NULL, NULL);
3260 nla_put_failure:
3261 return -ENOBUFS;
3262}
3263
3264
3265static int get_sta_handler(struct nl_msg *msg, void *arg)
3266{
3267 struct nlattr *tb[NL80211_ATTR_MAX + 1];
3268 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3269 struct hostap_sta_driver_data *data = arg;
3270 struct nlattr *stats[NL80211_STA_INFO_MAX + 1];
3271 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
3272 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
3273 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
3274 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
3275 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
3276 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
3277 };
3278
3279 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3280 genlmsg_attrlen(gnlh, 0), NULL);
3281
3282 /*
3283 * TODO: validate the interface and mac address!
3284 * Otherwise, there's a race condition as soon as
3285 * the kernel starts sending station notifications.
3286 */
3287
3288 if (!tb[NL80211_ATTR_STA_INFO]) {
3289 wpa_printf(MSG_DEBUG, "sta stats missing!");
3290 return NL_SKIP;
3291 }
3292 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX,
3293 tb[NL80211_ATTR_STA_INFO],
3294 stats_policy)) {
3295 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!");
3296 return NL_SKIP;
3297 }
3298
3299 if (stats[NL80211_STA_INFO_INACTIVE_TIME])
3300 data->inactive_msec =
3301 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]);
3302 if (stats[NL80211_STA_INFO_RX_BYTES])
3303 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]);
3304 if (stats[NL80211_STA_INFO_TX_BYTES])
3305 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]);
3306 if (stats[NL80211_STA_INFO_RX_PACKETS])
3307 data->rx_packets =
3308 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]);
3309 if (stats[NL80211_STA_INFO_TX_PACKETS])
3310 data->tx_packets =
3311 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]);
3312
3313 return NL_SKIP;
3314}
3315
3316static int i802_read_sta_data(void *priv, struct hostap_sta_driver_data *data,
3317 const u8 *addr)
3318{
3319 struct wpa_driver_nl80211_data *drv = priv;
3320 struct nl_msg *msg;
3321
3322 os_memset(data, 0, sizeof(*data));
3323 msg = nlmsg_alloc();
3324 if (!msg)
3325 return -ENOMEM;
3326
3327 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3328 0, NL80211_CMD_GET_STATION, 0);
3329
3330 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
3331 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->ifname));
3332
3333 return send_and_recv_msgs(drv, msg, get_sta_handler, data);
3334 nla_put_failure:
3335 return -ENOBUFS;
3336}
3337
3338
3339static int i802_send_eapol(void *priv, const u8 *addr, const u8 *data,
3340 size_t data_len, int encrypt, const u8 *own_addr)
3341{
3342 struct wpa_driver_nl80211_data *drv = priv;
3343 struct ieee80211_hdr *hdr;
3344 size_t len;
3345 u8 *pos;
3346 int res;
3347#if 0 /* FIX */
3348 int qos = sta->flags & WLAN_STA_WME;
3349#else
3350 int qos = 0;
3351#endif
3352
3353 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 +
3354 data_len;
3355 hdr = os_zalloc(len);
3356 if (hdr == NULL) {
3357 printf("malloc() failed for i802_send_data(len=%lu)\n",
3358 (unsigned long) len);
3359 return -1;
3360 }
3361
3362 hdr->frame_control =
3363 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA);
3364 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS);
3365 if (encrypt)
3366 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP);
3367#if 0 /* To be enabled if qos determination is added above */
3368 if (qos) {
3369 hdr->frame_control |=
3370 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4);
3371 }
3372#endif
3373
3374 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN);
3375 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
3376 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
3377 pos = (u8 *) (hdr + 1);
3378
3379#if 0 /* To be enabled if qos determination is added above */
3380 if (qos) {
3381 /* add an empty QoS header if needed */
3382 pos[0] = 0;
3383 pos[1] = 0;
3384 pos += 2;
3385 }
3386#endif
3387
3388 memcpy(pos, rfc1042_header, sizeof(rfc1042_header));
3389 pos += sizeof(rfc1042_header);
3390 WPA_PUT_BE16(pos, ETH_P_PAE);
3391 pos += 2;
3392 memcpy(pos, data, data_len);
3393
9f324b61 3394 res = wpa_driver_nl80211_send_frame(drv, (u8 *) hdr, len, encrypt);
c5121837 3395 if (res < 0) {
9f324b61
JM		 3396 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - "
3397 "failed: %d (%s)",
3398 (unsigned long) len, errno, strerror(errno));
c5121837 3399 }
9f324b61 3400 free(hdr);
c5121837
JM		 3401
3402 return res;
3403}
3404
3405
3406static int i802_sta_add(const char *ifname, void *priv,
3407 struct hostapd_sta_add_params *params)
3408{
3409 struct wpa_driver_nl80211_data *drv = priv;
3410 struct nl_msg *msg;
3411 int ret = -ENOBUFS;
3412
3413 msg = nlmsg_alloc();
3414 if (!msg)
3415 return -ENOMEM;
3416
3417 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3418 0, NL80211_CMD_NEW_STATION, 0);
3419
3420 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
3421 if_nametoindex(drv->ifname));
3422 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr);
3423 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid);
3424 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len,
3425 params->supp_rates);
3426 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL,
3427 params->listen_interval);
3428
3429#ifdef CONFIG_IEEE80211N
3430 if (params->ht_capabilities) {
3431 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY,
3432 params->ht_capabilities->length,
3433 &params->ht_capabilities->data);
3434 }
3435#endif /* CONFIG_IEEE80211N */
3436
3437 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3438 if (ret)
3439 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_NEW_STATION "
3440 "result: %d (%s)", ret, strerror(-ret));
3441 if (ret == -EEXIST)
3442 ret = 0;
3443 nla_put_failure:
3444 return ret;
3445}
3446
3447
3448static int i802_sta_remove(void *priv, const u8 *addr)
3449{
3450 struct wpa_driver_nl80211_data *drv = priv;
3451 struct nl_msg *msg;
3452 int ret;
3453
3454 msg = nlmsg_alloc();
3455 if (!msg)
3456 return -ENOMEM;
3457
3458 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3459 0, NL80211_CMD_DEL_STATION, 0);
3460
3461 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
3462 if_nametoindex(drv->ifname));
3463 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
3464
3465 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3466 if (ret == -ENOENT)
3467 return 0;
3468 return ret;
3469 nla_put_failure:
3470 return -ENOBUFS;
3471}
3472
3473
3474static int i802_sta_set_flags(void *priv, const u8 *addr,
3475 int total_flags, int flags_or, int flags_and)
3476{
3477 struct wpa_driver_nl80211_data *drv = priv;
3478 struct nl_msg *msg, *flags = NULL;
3479
3480 msg = nlmsg_alloc();
3481 if (!msg)
3482 return -ENOMEM;
3483
3484 flags = nlmsg_alloc();
3485 if (!flags) {
3486 nlmsg_free(msg);
3487 return -ENOMEM;
3488 }
3489
3490 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3491 0, NL80211_CMD_SET_STATION, 0);
3492
3493 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
3494 if_nametoindex(drv->ifname));
3495 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
3496
3497 if (total_flags & WLAN_STA_AUTHORIZED)
3498 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_AUTHORIZED);
3499
3500 if (total_flags & WLAN_STA_WMM)
3501 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_WME);
3502
3503 if (total_flags & WLAN_STA_SHORT_PREAMBLE)
3504 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_SHORT_PREAMBLE);
3505
3506 if (total_flags & WLAN_STA_MFP)
3507 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_MFP);
3508
3509 if (nla_put_nested(msg, NL80211_ATTR_STA_FLAGS, flags))
3510 goto nla_put_failure;
3511
3512 nlmsg_free(flags);
3513
3514 return send_and_recv_msgs(drv, msg, NULL, NULL);
3515 nla_put_failure:
3516 nlmsg_free(flags);
3517 return -ENOBUFS;
3518}
3519
3520
3521static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
3522 int cw_min, int cw_max, int burst_time)
3523{
3524 struct wpa_driver_nl80211_data *drv = priv;
3525 struct nl_msg *msg;
3526 struct nlattr *txq, *params;
3527
3528 msg = nlmsg_alloc();
3529 if (!msg)
3530 return -1;
3531
3532 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3533 0, NL80211_CMD_SET_WIPHY, 0);
3534
3535 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->ifname));
3536
3537 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS);
3538 if (!txq)
3539 goto nla_put_failure;
3540
3541 /* We are only sending parameters for a single TXQ at a time */
3542 params = nla_nest_start(msg, 1);
3543 if (!params)
3544 goto nla_put_failure;
3545
3546 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, queue);
3547 /* Burst time is configured in units of 0.1 msec and TXOP parameter in
3548 * 32 usec, so need to convert the value here. */
3549 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32);
3550 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min);
3551 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max);
3552 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs);
3553
3554 nla_nest_end(msg, params);
3555
3556 nla_nest_end(msg, txq);
3557
3558 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
3559 return 0;
3560 nla_put_failure:
3561 return -1;
3562}
3563
3564
c5121837
JM		 3565static int i802_bss_add(void *priv, const char *ifname, const u8 *bssid)
3566{
3567 struct wpa_driver_nl80211_data *drv = priv;
3568 int ifidx;
3569 struct i802_bss *bss;
3570
3571 bss = os_zalloc(sizeof(*bss));
3572 if (bss == NULL)
3573 return -1;
c5121837
JM		 3574
3575 ifidx = nl80211_create_iface(priv, ifname, NL80211_IFTYPE_AP, bssid);
3576 if (ifidx < 0) {
3577 os_free(bss);
3578 return -1;
3579 }
6d550fbe 3580 bss->ifindex = ifidx;
c5121837
JM		 3581 if (hostapd_set_iface_flags(priv, ifname, 1)) {
3582 nl80211_remove_iface(priv, ifidx);
3583 os_free(bss);
3584 return -1;
3585 }
3586 bss->next = drv->bss.next;
3587 drv->bss.next = bss;
3588 return 0;
3589}
3590
3591
3592static int i802_bss_remove(void *priv, const char *ifname)
3593{
3594 struct wpa_driver_nl80211_data *drv = priv;
3595 struct i802_bss *bss, *prev;
b4fd6fab
JM		 3596 int ifindex = if_nametoindex(ifname);
3597 nl80211_remove_iface(priv, ifindex);
c5121837
JM		 3598 prev = &drv->bss;
3599 bss = drv->bss.next;
3600 while (bss) {
b4fd6fab 3601 if (ifindex == bss->ifindex) {
c5121837
JM		 3602 prev->next = bss->next;
3603 os_free(bss);
3604 break;
3605 }
3606 prev = bss;
3607 bss = bss->next;
3608 }
3609 return 0;
3610}
3611
3612
3613static int i802_set_beacon(const char *iface, void *priv,
3614 const u8 *head, size_t head_len,
3615 const u8 *tail, size_t tail_len, int dtim_period)
3616{
b4fd6fab
JM		 3617 return wpa_driver_nl80211_set_beacon_iface(if_nametoindex(iface), priv,
3618 head, head_len,
3619 tail, tail_len,
3620 dtim_period);
c5121837
JM		 3621}
3622
3623
3624static int i802_del_beacon(struct wpa_driver_nl80211_data *drv)
3625{
3626 struct nl_msg *msg;
3627
3628 msg = nlmsg_alloc();
3629 if (!msg)
3630 return -ENOMEM;
3631
3632 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3633 0, NL80211_CMD_DEL_BEACON, 0);
3634 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->ifname));
3635
3636 return send_and_recv_msgs(drv, msg, NULL, NULL);
3637 nla_put_failure:
3638 return -ENOBUFS;
3639}
3640
3641
c5121837
JM		 3642static int i802_set_bss(void *priv, int cts, int preamble, int slot)
3643{
3644 struct wpa_driver_nl80211_data *drv = priv;
3645 struct nl_msg *msg;
3646
3647 msg = nlmsg_alloc();
3648 if (!msg)
3649 return -ENOMEM;
3650
3651 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
3652 NL80211_CMD_SET_BSS, 0);
3653
3654 if (cts >= 0)
3655 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts);
3656 if (preamble >= 0)
3657 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble);
3658 if (slot >= 0)
3659 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot);
3660
3661 /* TODO: multi-BSS support */
3662 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->ifname));
3663
3664 return send_and_recv_msgs(drv, msg, NULL, NULL);
3665 nla_put_failure:
3666 return -ENOBUFS;
3667}
3668
3669
3670static int i802_set_cts_protect(void *priv, int value)
3671{
3672 return i802_set_bss(priv, value, -1, -1);
3673}
3674
3675
3676static int i802_set_preamble(void *priv, int value)
3677{
3678 return i802_set_bss(priv, -1, value, -1);
3679}
3680
3681
3682static int i802_set_short_slot_time(void *priv, int value)
3683{
3684 return i802_set_bss(priv, -1, -1, value);
3685}
3686
3687
3688static enum nl80211_iftype i802_if_type(enum hostapd_driver_if_type type)
3689{
3690 switch (type) {
3691 case HOSTAPD_IF_VLAN:
3692 return NL80211_IFTYPE_AP_VLAN;
c5121837
JM		 3693 }
3694 return -1;
3695}
3696
3697
3698static int i802_if_add(const char *iface, void *priv,
3699 enum hostapd_driver_if_type type, char *ifname,
3700 const u8 *addr)
3701{
3702 if (nl80211_create_iface(priv, ifname, i802_if_type(type), addr) < 0)
3703 return -1;
3704 return 0;
3705}
3706
3707
3708static int i802_if_update(void *priv, enum hostapd_driver_if_type type,
3709 char *ifname, const u8 *addr)
3710{
3711 /* unused at the moment */
3712 return -1;
3713}
3714
3715
3716static int i802_if_remove(void *priv, enum hostapd_driver_if_type type,
3717 const char *ifname, const u8 *addr)
3718{
3719 nl80211_remove_iface(priv, if_nametoindex(ifname));
3720 return 0;
3721}
3722
3723
c5121837
JM		 3724static int i802_set_sta_vlan(void *priv, const u8 *addr,
3725 const char *ifname, int vlan_id)
3726{
3727 struct wpa_driver_nl80211_data *drv = priv;
3728 struct nl_msg *msg;
3729
3730 msg = nlmsg_alloc();
3731 if (!msg)
3732 return -ENOMEM;
3733
3734 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3735 0, NL80211_CMD_SET_STATION, 0);
3736
3737 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
3738 if_nametoindex(drv->ifname));
3739 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
3740 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
3741 if_nametoindex(ifname));
3742
3743 return send_and_recv_msgs(drv, msg, NULL, NULL);
3744 nla_put_failure:
3745 return -ENOBUFS;
3746}
3747
3748
c5121837
JM		 3749static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
3750{
3751 struct wpa_driver_nl80211_data *drv = eloop_ctx;
3752 struct sockaddr_ll lladdr;
3753 unsigned char buf[3000];
3754 int len;
3755 socklen_t fromlen = sizeof(lladdr);
3756
3757 len = recvfrom(sock, buf, sizeof(buf), 0,
3758 (struct sockaddr *)&lladdr, &fromlen);
3759 if (len < 0) {
3760 perror("recv");
3761 return;
3762 }
3763
3764 if (have_ifidx(drv, lladdr.sll_ifindex)) {
4b9841d3
JM		 3765 void *ctx;
3766 ctx = hostapd_sta_get_bss(drv->ctx, lladdr.sll_addr);
3767 if (!ctx)
c5121837 3768 return;
4b9841d3 3769 hostapd_eapol_receive(ctx, lladdr.sll_addr, buf, len);
c5121837
JM		 3770 }
3771}
3772
3773
c5121837
JM		 3774static int i802_get_inact_sec(void *priv, const u8 *addr)
3775{
3776 struct hostap_sta_driver_data data;
3777 int ret;
3778
3779 data.inactive_msec = (unsigned long) -1;
3780 ret = i802_read_sta_data(priv, &data, addr);
3781 if (ret || data.inactive_msec == (unsigned long) -1)
3782 return -1;
3783 return data.inactive_msec / 1000;
3784}
3785
3786
3787static int i802_sta_clear_stats(void *priv, const u8 *addr)
3788{
3789#if 0
3790 /* TODO */
3791#endif
3792 return 0;
3793}
3794
3795
731723a5
JM		 3796static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
3797 int reason)
c5121837
JM		 3798{
3799 struct wpa_driver_nl80211_data *drv = priv;
3800 struct ieee80211_mgmt mgmt;
3801
3802 memset(&mgmt, 0, sizeof(mgmt));
3803 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
3804 WLAN_FC_STYPE_DEAUTH);
3805 memcpy(mgmt.da, addr, ETH_ALEN);
731723a5
JM		 3806 memcpy(mgmt.sa, own_addr, ETH_ALEN);
3807 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
c5121837 3808 mgmt.u.deauth.reason_code = host_to_le16(reason);
9f324b61
JM		 3809 return wpa_driver_nl80211_send_mlme(drv, (u8 *) &mgmt,
3810 IEEE80211_HDRLEN +
3811 sizeof(mgmt.u.deauth));
c5121837
JM		 3812}
3813
3814
731723a5
JM		 3815static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
3816 int reason)
c5121837
JM		 3817{
3818 struct wpa_driver_nl80211_data *drv = priv;
3819 struct ieee80211_mgmt mgmt;
3820
3821 memset(&mgmt, 0, sizeof(mgmt));
3822 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
3823 WLAN_FC_STYPE_DISASSOC);
3824 memcpy(mgmt.da, addr, ETH_ALEN);
731723a5
JM		 3825 memcpy(mgmt.sa, own_addr, ETH_ALEN);
3826 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
c5121837 3827 mgmt.u.disassoc.reason_code = host_to_le16(reason);
9f324b61
JM		 3828 return wpa_driver_nl80211_send_mlme(drv, (u8 *) &mgmt,
3829 IEEE80211_HDRLEN +
3830 sizeof(mgmt.u.disassoc));
c5121837
JM		 3831}
3832
3833
92f475b4
JM		 3834static void *i802_init(struct hostapd_data *hapd,
3835 struct wpa_init_params *params)
c5121837
JM		 3836{
3837 struct wpa_driver_nl80211_data *drv;
3838 size_t i;
3839
bbaf0837
JM		 3840 drv = wpa_driver_nl80211_init(hapd, params->ifname);
3841 if (drv == NULL)
c5121837 3842 return NULL;
c5121837 3843
b4fd6fab 3844 drv->bss.ifindex = drv->ifindex;
c5121837
JM		 3845
3846 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
3847 drv->if_indices = drv->default_if_indices;
92f475b4
JM		 3848 for (i = 0; i < params->num_bridge; i++) {
3849 if (params->bridge[i])
3850 add_ifidx(drv, if_nametoindex(params->bridge[i]));
c5121837 3851 }
c5121837 3852
ad1e68e6
JM		 3853 /* start listening for EAPOL on the default AP interface */
3854 add_ifidx(drv, drv->ifindex);
3855
3856 if (hostapd_set_iface_flags(drv, drv->ifname, 0))
3857 goto failed;
3858
41d931ee
JM		 3859 if (params->bssid && set_ifhwaddr(drv, drv->ifname, params->bssid))
3860 goto failed;
ad1e68e6 3861
ad1e68e6
JM		 3862 /* Initialise a monitor interface */
3863 if (nl80211_create_monitor_interface(drv))
3864 goto failed;
3865
3866 if (nl80211_set_mode(drv, drv->ifindex, NL80211_IFTYPE_AP)) {
3867 wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s "
3868 "into AP mode", drv->ifname);
bbaf0837 3869 goto failed;
ad1e68e6
JM		 3870 }
3871
3872 if (hostapd_set_iface_flags(drv, drv->ifname, 1))
bbaf0837 3873 goto failed;
ad1e68e6
JM		 3874
3875 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE));
3876 if (drv->eapol_sock < 0) {
3877 perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)");
bbaf0837 3878 goto failed;
ad1e68e6
JM		 3879 }
3880
3881 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL))
3882 {
3883 printf("Could not register read socket for eapol\n");
c5121837 3884 goto failed;
ad1e68e6
JM		 3885 }
3886
412036f5 3887 if (get_ifhwaddr(drv, drv->ifname, params->own_addr))
bbaf0837 3888 goto failed;
c5121837 3889
c5121837
JM		 3890 return drv;
3891
3892failed:
bbaf0837
JM		 3893 if (drv->monitor_ifidx >= 0)
3894 nl80211_remove_iface(drv, drv->monitor_ifidx);
c5121837
JM		 3895 if (drv->ioctl_sock >= 0)
3896 close(drv->ioctl_sock);
c5121837
JM		 3897
3898 genl_family_put(drv->nl80211);
3899 nl_cache_free(drv->nl_cache);
3900 nl_handle_destroy(drv->nl_handle);
3901 nl_cb_put(drv->nl_cb);
3902
bbaf0837
JM		 3903 os_free(drv);
3904 return NULL;
3905}
c5121837 3906
c5121837 3907
bbaf0837
JM		 3908static void i802_deinit(void *priv)
3909{
3910 wpa_driver_nl80211_deinit(priv);
c5121837
JM		 3911}
3912
3913#endif /* HOSTAPD */
3914
3915
3f5285e8
JM		 3916const struct wpa_driver_ops wpa_driver_nl80211_ops = {
3917 .name = "nl80211",
3918 .desc = "Linux nl80211/cfg80211",
c811d5bc 3919#ifndef HOSTAPD
3f5285e8
JM		 3920 .get_bssid = wpa_driver_nl80211_get_bssid,
3921 .get_ssid = wpa_driver_nl80211_get_ssid,
3f5285e8 3922 .set_key = wpa_driver_nl80211_set_key,
c811d5bc 3923#endif /* HOSTAPD */
6a1063e0 3924 .scan2 = wpa_driver_nl80211_scan,
3f5285e8 3925 .get_scan_results2 = wpa_driver_nl80211_get_scan_results,
c811d5bc 3926#ifndef HOSTAPD
3f5285e8
JM		 3927 .deauthenticate = wpa_driver_nl80211_deauthenticate,
3928 .disassociate = wpa_driver_nl80211_disassociate,
c2a04078 3929 .authenticate = wpa_driver_nl80211_authenticate,
3f5285e8 3930 .associate = wpa_driver_nl80211_associate,
3f5285e8
JM		 3931 .init = wpa_driver_nl80211_init,
3932 .deinit = wpa_driver_nl80211_deinit,
3f5285e8
JM		 3933 .get_capa = wpa_driver_nl80211_get_capa,
3934 .set_operstate = wpa_driver_nl80211_set_operstate,
c811d5bc 3935#endif /* HOSTAPD */
6d158490 3936 .set_country = wpa_driver_nl80211_set_country,
ad1e68e6 3937 .set_mode = wpa_driver_nl80211_set_mode,
d2440ba0
JM		 3938#ifdef CONFIG_AP
3939 .set_beacon = wpa_driver_nl80211_set_beacon,
d2440ba0 3940#endif /* CONFIG_AP */
c3965310 3941#if defined(CONFIG_AP) || defined(HOSTAPD)
071f8ac4 3942 .send_mlme = wpa_driver_nl80211_send_mlme,
b4fd6fab 3943 .set_beacon_int = wpa_driver_nl80211_set_beacon_int,
c3965310
JM		 3944 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data,
3945#endif /* CONFIG_AP || HOSTAPD */
c5121837
JM		 3946#ifdef HOSTAPD
3947 .hapd_init = i802_init,
c5121837
JM		 3948 .hapd_deinit = i802_deinit,
3949 .hapd_set_key = i802_set_key,
3950 .get_seqnum = i802_get_seqnum,
3951 .flush = i802_flush,
3952 .read_sta_data = i802_read_sta_data,
3953 .hapd_send_eapol = i802_send_eapol,
3954 .sta_set_flags = i802_sta_set_flags,
3955 .sta_deauth = i802_sta_deauth,
3956 .sta_disassoc = i802_sta_disassoc,
3957 .sta_remove = i802_sta_remove,
c5121837
JM		 3958 .sta_add = i802_sta_add,
3959 .get_inact_sec = i802_get_inact_sec,
3960 .sta_clear_stats = i802_sta_clear_stats,
3961 .set_freq = i802_set_freq,
3962 .set_rts = i802_set_rts,
3963 .set_frag = i802_set_frag,
3964 .set_retry = i802_set_retry,
3965 .set_rate_sets = i802_set_rate_sets,
3966 .hapd_set_beacon = i802_set_beacon,
c5121837
JM		 3967 .set_cts_protect = i802_set_cts_protect,
3968 .set_preamble = i802_set_preamble,
3969 .set_short_slot_time = i802_set_short_slot_time,
3970 .set_tx_queue_params = i802_set_tx_queue_params,
3971 .bss_add = i802_bss_add,
3972 .bss_remove = i802_bss_remove,
3973 .if_add = i802_if_add,
3974 .if_update = i802_if_update,
3975 .if_remove = i802_if_remove,
c5121837 3976 .set_sta_vlan = i802_set_sta_vlan,
c5121837 3977#endif /* HOSTAPD */
3f5285e8 3978};
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