]> git.ipfire.org Git - thirdparty/hostap.git/blame - src/drivers/driver_nl80211.c
projects / thirdparty / hostap.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Fix wpa_passphrase build with NSS
[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 42#include "../../hostapd/hostapd_defs.h"
a8d6ffa4 43#include "../../hostapd/sta_flags.h"
4b9841d3 44#endif /* CONFIG_AP || HOSTAPD */
0915d02c 45
c5121837 46#ifdef HOSTAPD
c5121837 47#include "ieee802_11_common.h"
2e8eac2d 48#endif /* HOSTAPD */
c5121837
JM		 49
50#ifdef CONFIG_LIBNL20
51/* libnl 2.0 compatibility code */
2e8eac2d 52#define nl_handle nl_sock
c5121837
JM		 53#define nl_handle_alloc_cb nl_socket_alloc_cb
54#define nl_handle_destroy nl_socket_free
55#endif /* CONFIG_LIBNL20 */
56
c5121837 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;
335ce76b 93 struct nl_handle *nl_handle_event;
3f5285e8 94 struct nl_cache *nl_cache;
335ce76b 95 struct nl_cache *nl_cache_event;
3f5285e8
JM		 96 struct nl_cb *nl_cb;
97 struct genl_family *nl80211;
1c873584 98
c2a04078
JM		 99 u8 bssid[ETH_ALEN];
100 int associated;
fd05d64e
JM		 101 u8 ssid[32];
102 size_t ssid_len;
ad1e68e6
JM		 103 int nlmode;
104 int ap_scan_as_station;
d2440ba0 105
d2440ba0 106 int beacon_int;
0915d02c
JM		 107 int monitor_sock;
108 int monitor_ifidx;
7da3abe7
JM		 109
110#ifdef CONFIG_AP
111 unsigned int beacon_set:1;
d2440ba0 112#endif /* CONFIG_AP */
c5121837
JM		 113
114#ifdef HOSTAPD
c5121837 115 int eapol_sock; /* socket for EAPOL frames */
c5121837
JM		 116
117 int default_if_indices[16];
118 int *if_indices;
119 int num_if_indices;
120
c5121837 121 struct i802_bss bss;
c5121837
JM		 122
123 int last_freq;
124 int last_freq_ht;
c5121837 125#endif /* HOSTAPD */
3f5285e8
JM		 126};
127
128
129static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx,
130 void *timeout_ctx);
ad1e68e6 131static int wpa_driver_nl80211_set_mode(void *priv, int mode);
362f781e 132static int
7524cfb1
JM		 133wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv);
134
460456f8
JM		 135#if defined(CONFIG_AP) || defined(HOSTAPD)
136static void nl80211_remove_monitor_interface(
137 struct wpa_driver_nl80211_data *drv);
138#endif /* CONFIG_AP || HOSTAPD */
139
0915d02c
JM		 140#ifdef CONFIG_AP
141static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
142 int ifidx);
143#endif /* CONFIG_AP */
144
072ad14c 145#ifdef HOSTAPD
2135f224
JM		 146static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
147static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
b4fd6fab
JM		 148static struct i802_bss * get_bss(struct wpa_driver_nl80211_data *drv,
149 int ifindex);
bbaf0837
JM		 150static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
151 int ifidx);
152static int i802_set_freq(void *priv, struct hostapd_freq_params *freq);
072ad14c
JM		 153#endif /* HOSTAPD */
154
3f5285e8 155
6241fcb1
JM		 156/* nl80211 code */
157static int ack_handler(struct nl_msg *msg, void *arg)
158{
159 int *err = arg;
160 *err = 0;
161 return NL_STOP;
162}
163
164static int finish_handler(struct nl_msg *msg, void *arg)
165{
8e8df255
JM		 166 int *ret = arg;
167 *ret = 0;
6241fcb1
JM		 168 return NL_SKIP;
169}
170
171static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err,
172 void *arg)
173{
174 int *ret = arg;
175 *ret = err->error;
176 return NL_SKIP;
177}
178
5b7b85f6
JM		 179
180static int no_seq_check(struct nl_msg *msg, void *arg)
181{
182 return NL_OK;
183}
184
185
6241fcb1
JM		 186static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv,
187 struct nl_msg *msg,
188 int (*valid_handler)(struct nl_msg *, void *),
189 void *valid_data)
190{
191 struct nl_cb *cb;
192 int err = -ENOMEM;
193
194 cb = nl_cb_clone(drv->nl_cb);
195 if (!cb)
196 goto out;
197
198 err = nl_send_auto_complete(drv->nl_handle, msg);
199 if (err < 0)
200 goto out;
201
202 err = 1;
203
204 nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
8e8df255 205 nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
6241fcb1
JM		 206 nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
207
208 if (valid_handler)
209 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM,
210 valid_handler, valid_data);
211
212 while (err > 0)
213 nl_recvmsgs(drv->nl_handle, cb);
214 out:
215 nl_cb_put(cb);
216 nlmsg_free(msg);
217 return err;
218}
219
220
97865538
JM		 221struct family_data {
222 const char *group;
223 int id;
224};
225
226
227static int family_handler(struct nl_msg *msg, void *arg)
228{
229 struct family_data *res = arg;
230 struct nlattr *tb[CTRL_ATTR_MAX + 1];
231 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
232 struct nlattr *mcgrp;
233 int i;
234
235 nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
236 genlmsg_attrlen(gnlh, 0), NULL);
237 if (!tb[CTRL_ATTR_MCAST_GROUPS])
238 return NL_SKIP;
239
240 nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], i) {
241 struct nlattr *tb2[CTRL_ATTR_MCAST_GRP_MAX + 1];
242 nla_parse(tb2, CTRL_ATTR_MCAST_GRP_MAX, nla_data(mcgrp),
243 nla_len(mcgrp), NULL);
244 if (!tb2[CTRL_ATTR_MCAST_GRP_NAME] ||
245 !tb2[CTRL_ATTR_MCAST_GRP_ID] ||
246 os_strncmp(nla_data(tb2[CTRL_ATTR_MCAST_GRP_NAME]),
247 res->group,
248 nla_len(tb2[CTRL_ATTR_MCAST_GRP_NAME])) != 0)
249 continue;
250 res->id = nla_get_u32(tb2[CTRL_ATTR_MCAST_GRP_ID]);
251 break;
252 };
253
254 return NL_SKIP;
255}
256
257
258static int nl_get_multicast_id(struct wpa_driver_nl80211_data *drv,
259 const char *family, const char *group)
260{
261 struct nl_msg *msg;
262 int ret = -1;
263 struct family_data res = { group, -ENOENT };
264
265 msg = nlmsg_alloc();
266 if (!msg)
267 return -ENOMEM;
268 genlmsg_put(msg, 0, 0, genl_ctrl_resolve(drv->nl_handle, "nlctrl"),
269 0, 0, CTRL_CMD_GETFAMILY, 0);
270 NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family);
271
272 ret = send_and_recv_msgs(drv, msg, family_handler, &res);
273 msg = NULL;
274 if (ret == 0)
275 ret = res.id;
276
277nla_put_failure:
278 nlmsg_free(msg);
279 return ret;
280}
281
282
41d931ee
JM		 283#ifdef HOSTAPD
284static int get_ifhwaddr(struct wpa_driver_nl80211_data *drv,
285 const char *ifname, u8 *addr)
286{
287 struct ifreq ifr;
288
289 os_memset(&ifr, 0, sizeof(ifr));
290 os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
291 if (ioctl(drv->ioctl_sock, SIOCGIFHWADDR, &ifr)) {
292 wpa_printf(MSG_ERROR, "%s: ioctl(SIOCGIFHWADDR): %d (%s)",
293 ifname, errno, strerror(errno));
294 return -1;
295 }
296
297 if (ifr.ifr_hwaddr.sa_family != ARPHRD_ETHER) {
298 wpa_printf(MSG_ERROR, "%s: Invalid HW-addr family 0x%04x",
299 ifname, ifr.ifr_hwaddr.sa_family);
300 return -1;
301 }
302 os_memcpy(addr, ifr.ifr_hwaddr.sa_data, ETH_ALEN);
303
304 return 0;
305}
306
307
308static int set_ifhwaddr(struct wpa_driver_nl80211_data *drv,
309 const char *ifname, const u8 *addr)
310{
311 struct ifreq ifr;
312
313 os_memset(&ifr, 0, sizeof(ifr));
314 os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
315 os_memcpy(ifr.ifr_hwaddr.sa_data, addr, ETH_ALEN);
316 ifr.ifr_hwaddr.sa_family = ARPHRD_ETHER;
317
318 if (ioctl(drv->ioctl_sock, SIOCSIFHWADDR, &ifr)) {
319 wpa_printf(MSG_DEBUG, "%s: ioctl(SIOCSIFHWADDR): %d (%s)",
320 ifname, errno, strerror(errno));
321 return -1;
322 }
323
324 return 0;
325}
326#endif /* HOSTAPD */
327
328
c811d5bc
JM		 329#ifndef HOSTAPD
330
3f5285e8
JM		 331static int wpa_driver_nl80211_send_oper_ifla(
332 struct wpa_driver_nl80211_data *drv,
333 int linkmode, int operstate)
334{
335 struct {
336 struct nlmsghdr hdr;
337 struct ifinfomsg ifinfo;
338 char opts[16];
339 } req;
340 struct rtattr *rta;
341 static int nl_seq;
342 ssize_t ret;
343
344 os_memset(&req, 0, sizeof(req));
345
346 req.hdr.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
347 req.hdr.nlmsg_type = RTM_SETLINK;
348 req.hdr.nlmsg_flags = NLM_F_REQUEST;
349 req.hdr.nlmsg_seq = ++nl_seq;
350 req.hdr.nlmsg_pid = 0;
351
352 req.ifinfo.ifi_family = AF_UNSPEC;
353 req.ifinfo.ifi_type = 0;
354 req.ifinfo.ifi_index = drv->ifindex;
355 req.ifinfo.ifi_flags = 0;
356 req.ifinfo.ifi_change = 0;
357
358 if (linkmode != -1) {
359 rta = (struct rtattr *)
360 ((char *) &req + NLMSG_ALIGN(req.hdr.nlmsg_len));
361 rta->rta_type = IFLA_LINKMODE;
362 rta->rta_len = RTA_LENGTH(sizeof(char));
363 *((char *) RTA_DATA(rta)) = linkmode;
364 req.hdr.nlmsg_len = NLMSG_ALIGN(req.hdr.nlmsg_len) +
365 RTA_LENGTH(sizeof(char));
366 }
367 if (operstate != -1) {
368 rta = (struct rtattr *)
369 ((char *) &req + NLMSG_ALIGN(req.hdr.nlmsg_len));
370 rta->rta_type = IFLA_OPERSTATE;
371 rta->rta_len = RTA_LENGTH(sizeof(char));
372 *((char *) RTA_DATA(rta)) = operstate;
373 req.hdr.nlmsg_len = NLMSG_ALIGN(req.hdr.nlmsg_len) +
374 RTA_LENGTH(sizeof(char));
375 }
376
7da3abe7 377 wpa_printf(MSG_DEBUG, "nl80211: Operstate: linkmode=%d, operstate=%d",
3f5285e8
JM		 378 linkmode, operstate);
379
d8816397 380 ret = send(drv->link_event_sock, &req, req.hdr.nlmsg_len, 0);
3f5285e8 381 if (ret < 0) {
7da3abe7
JM		 382 wpa_printf(MSG_DEBUG, "nl80211: Sending operstate IFLA failed:"
383 " %s (assume operstate is not supported)",
3f5285e8
JM		 384 strerror(errno));
385 }
386
387 return ret < 0 ? -1 : 0;
388}
389
390
37b7d082 391#ifndef NO_WEXT
3f5285e8
JM		 392static int wpa_driver_nl80211_set_auth_param(
393 struct wpa_driver_nl80211_data *drv, int idx, u32 value)
394{
395 struct iwreq iwr;
396 int ret = 0;
397
398 os_memset(&iwr, 0, sizeof(iwr));
399 os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
400 iwr.u.param.flags = idx & IW_AUTH_INDEX;
401 iwr.u.param.value = value;
402
403 if (ioctl(drv->ioctl_sock, SIOCSIWAUTH, &iwr) < 0) {
404 if (errno != EOPNOTSUPP) {
405 wpa_printf(MSG_DEBUG, "WEXT: SIOCSIWAUTH(param %d "
406 "value 0x%x) failed: %s)",
407 idx, value, strerror(errno));
408 }
409 ret = errno == EOPNOTSUPP ? -2 : -1;
410 }
411
412 return ret;
413}
37b7d082 414#endif /* NO_WEXT */
3f5285e8
JM		 415
416
417static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid)
418{
419 struct wpa_driver_nl80211_data *drv = priv;
c2a04078
JM		 420 if (!drv->associated)
421 return -1;
422 os_memcpy(bssid, drv->bssid, ETH_ALEN);
423 return 0;
3f5285e8
JM		 424}
425
426
3f5285e8
JM		 427static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid)
428{
429 struct wpa_driver_nl80211_data *drv = priv;
fd05d64e
JM		 430 if (!drv->associated)
431 return -1;
432 os_memcpy(ssid, drv->ssid, drv->ssid_len);
433 return drv->ssid_len;
3f5285e8
JM		 434}
435
436
7524cfb1
JM		 437static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv,
438 void *ctx, char *buf, size_t len,
439 int del)
3f5285e8
JM		 440{
441 union wpa_event_data event;
442
443 os_memset(&event, 0, sizeof(event));
444 if (len > sizeof(event.interface_status.ifname))
445 len = sizeof(event.interface_status.ifname) - 1;
446 os_memcpy(event.interface_status.ifname, buf, len);
447 event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED :
448 EVENT_INTERFACE_ADDED;
449
450 wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s",
451 del ? "DEL" : "NEW",
452 event.interface_status.ifname,
453 del ? "removed" : "added");
454
7524cfb1
JM		 455 if (os_strcmp(drv->ifname, event.interface_status.ifname) == 0) {
456 if (del)
457 drv->if_removed = 1;
458 else
459 drv->if_removed = 0;
460 }
461
3f5285e8
JM		 462 wpa_supplicant_event(ctx, EVENT_INTERFACE_STATUS, &event);
463}
464
465
7524cfb1
JM		 466static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv,
467 struct nlmsghdr *h)
468{
469 struct ifinfomsg *ifi;
470 int attrlen, _nlmsg_len, rta_len;
471 struct rtattr *attr;
472
473 ifi = NLMSG_DATA(h);
474
475 _nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
476
477 attrlen = h->nlmsg_len - _nlmsg_len;
478 if (attrlen < 0)
479 return 0;
480
481 attr = (struct rtattr *) (((char *) ifi) + _nlmsg_len);
482
483 rta_len = RTA_ALIGN(sizeof(struct rtattr));
484 while (RTA_OK(attr, attrlen)) {
485 if (attr->rta_type == IFLA_IFNAME) {
486 if (os_strcmp(((char *) attr) + rta_len, drv->ifname)
487 == 0)
488 return 1;
489 else
490 break;
491 }
492 attr = RTA_NEXT(attr, attrlen);
493 }
494
495 return 0;
496}
497
498
499static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv,
500 int ifindex, struct nlmsghdr *h)
501{
502 if (drv->ifindex == ifindex)
503 return 1;
504
505 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, h)) {
506 drv->ifindex = if_nametoindex(drv->ifname);
507 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed "
508 "interface");
509 wpa_driver_nl80211_finish_drv_init(drv);
510 return 1;
511 }
512
513 return 0;
514}
515
516
3f5285e8
JM		 517static void wpa_driver_nl80211_event_rtm_newlink(struct wpa_driver_nl80211_data *drv,
518 void *ctx, struct nlmsghdr *h,
519 size_t len)
520{
521 struct ifinfomsg *ifi;
522 int attrlen, _nlmsg_len, rta_len;
523 struct rtattr * attr;
524
525 if (len < sizeof(*ifi))
526 return;
527
528 ifi = NLMSG_DATA(h);
529
7524cfb1 530 if (!wpa_driver_nl80211_own_ifindex(drv, ifi->ifi_index, h)) {
3f5285e8
JM		 531 wpa_printf(MSG_DEBUG, "Ignore event for foreign ifindex %d",
532 ifi->ifi_index);
533 return;
534 }
535
536 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x "
537 "(%s%s%s%s)",
538 drv->operstate, ifi->ifi_flags,
539 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "",
540 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "",
541 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "",
542 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : "");
543 /*
544 * Some drivers send the association event before the operup event--in
545 * this case, lifting operstate in wpa_driver_nl80211_set_operstate()
546 * fails. This will hit us when wpa_supplicant does not need to do
547 * IEEE 802.1X authentication
548 */
549 if (drv->operstate == 1 &&
550 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP &&
551 !(ifi->ifi_flags & IFF_RUNNING))
552 wpa_driver_nl80211_send_oper_ifla(drv, -1, IF_OPER_UP);
553
554 _nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
555
556 attrlen = h->nlmsg_len - _nlmsg_len;
557 if (attrlen < 0)
558 return;
559
560 attr = (struct rtattr *) (((char *) ifi) + _nlmsg_len);
561
562 rta_len = RTA_ALIGN(sizeof(struct rtattr));
563 while (RTA_OK(attr, attrlen)) {
d8816397 564 if (attr->rta_type == IFLA_IFNAME) {
7524cfb1
JM		 565 wpa_driver_nl80211_event_link(
566 drv, ctx,
567 ((char *) attr) + rta_len,
568 attr->rta_len - rta_len, 0);
3f5285e8
JM		 569 }
570 attr = RTA_NEXT(attr, attrlen);
571 }
572}
573
574
575static void wpa_driver_nl80211_event_rtm_dellink(struct wpa_driver_nl80211_data *drv,
576 void *ctx, struct nlmsghdr *h,
577 size_t len)
578{
579 struct ifinfomsg *ifi;
580 int attrlen, _nlmsg_len, rta_len;
581 struct rtattr * attr;
582
583 if (len < sizeof(*ifi))
584 return;
585
586 ifi = NLMSG_DATA(h);
587
588 _nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
589
590 attrlen = h->nlmsg_len - _nlmsg_len;
591 if (attrlen < 0)
592 return;
593
594 attr = (struct rtattr *) (((char *) ifi) + _nlmsg_len);
595
596 rta_len = RTA_ALIGN(sizeof(struct rtattr));
597 while (RTA_OK(attr, attrlen)) {
598 if (attr->rta_type == IFLA_IFNAME) {
7524cfb1
JM		 599 wpa_driver_nl80211_event_link(
600 drv, ctx,
601 ((char *) attr) + rta_len,
602 attr->rta_len - rta_len, 1);
3f5285e8
JM		 603 }
604 attr = RTA_NEXT(attr, attrlen);
605 }
606}
607
608
d8816397 609static void wpa_driver_nl80211_event_receive_link(int sock, void *eloop_ctx,
97865538 610 void *sock_ctx)
3f5285e8
JM		 611{
612 char buf[8192];
613 int left;
614 struct sockaddr_nl from;
615 socklen_t fromlen;
616 struct nlmsghdr *h;
617 int max_events = 10;
618
619try_again:
620 fromlen = sizeof(from);
621 left = recvfrom(sock, buf, sizeof(buf), MSG_DONTWAIT,
622 (struct sockaddr *) &from, &fromlen);
623 if (left < 0) {
624 if (errno != EINTR && errno != EAGAIN)
625 perror("recvfrom(netlink)");
626 return;
627 }
628
629 h = (struct nlmsghdr *) buf;
630 while (left >= (int) sizeof(*h)) {
631 int len, plen;
632
633 len = h->nlmsg_len;
634 plen = len - sizeof(*h);
635 if (len > left || plen < 0) {
636 wpa_printf(MSG_DEBUG, "Malformed netlink message: "
637 "len=%d left=%d plen=%d",
638 len, left, plen);
639 break;
640 }
641
642 switch (h->nlmsg_type) {
643 case RTM_NEWLINK:
644 wpa_driver_nl80211_event_rtm_newlink(eloop_ctx, sock_ctx,
645 h, plen);
646 break;
647 case RTM_DELLINK:
648 wpa_driver_nl80211_event_rtm_dellink(eloop_ctx, sock_ctx,
649 h, plen);
650 break;
651 }
652
653 len = NLMSG_ALIGN(len);
654 left -= len;
655 h = (struct nlmsghdr *) ((char *) h + len);
656 }
657
658 if (left > 0) {
659 wpa_printf(MSG_DEBUG, "%d extra bytes in the end of netlink "
660 "message", left);
661 }
662
663 if (--max_events > 0) {
664 /*
665 * Try to receive all events in one eloop call in order to
666 * limit race condition on cases where AssocInfo event, Assoc
667 * event, and EAPOL frames are received more or less at the
668 * same time. We want to process the event messages first
669 * before starting EAPOL processing.
670 */
671 goto try_again;
672 }
673}
674
675
c2a04078
JM		 676static void mlme_event_auth(struct wpa_driver_nl80211_data *drv,
677 const u8 *frame, size_t len)
678{
679 const struct ieee80211_mgmt *mgmt;
680 union wpa_event_data event;
681
682 mgmt = (const struct ieee80211_mgmt *) frame;
683 if (len < 24 + sizeof(mgmt->u.auth)) {
684 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
685 "frame");
686 return;
687 }
688
689 os_memset(&event, 0, sizeof(event));
690 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN);
691 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg);
692 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code);
693 if (len > 24 + sizeof(mgmt->u.auth)) {
694 event.auth.ies = mgmt->u.auth.variable;
695 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth);
696 }
697
698 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event);
699}
700
701
702static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv,
703 const u8 *frame, size_t len)
704{
705 const struct ieee80211_mgmt *mgmt;
706 union wpa_event_data event;
707 u16 status;
708
709 mgmt = (const struct ieee80211_mgmt *) frame;
710 if (len < 24 + sizeof(mgmt->u.assoc_resp)) {
711 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
712 "frame");
713 return;
714 }
715
716 status = le_to_host16(mgmt->u.assoc_resp.status_code);
717 if (status != WLAN_STATUS_SUCCESS) {
efa46078
JM		 718 os_memset(&event, 0, sizeof(event));
719 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
720 event.assoc_reject.resp_ies =
721 (u8 *) mgmt->u.assoc_resp.variable;
722 event.assoc_reject.resp_ies_len =
723 len - 24 - sizeof(mgmt->u.assoc_resp);
724 }
725 event.assoc_reject.status_code = status;
726
727 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
c2a04078
JM		 728 return;
729 }
730
731 drv->associated = 1;
732 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN);
733
734 os_memset(&event, 0, sizeof(event));
735 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
736 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable;
737 event.assoc_info.resp_ies_len =
efa46078 738 len - 24 - sizeof(mgmt->u.assoc_resp);
c2a04078
JM		 739 }
740
741 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
742}
743
da72a1c1
ZY		 744static void mlme_event_connect(struct wpa_driver_nl80211_data *drv,
745 enum nl80211_commands cmd, struct nlattr *status,
746 struct nlattr *addr, struct nlattr *req_ie,
747 struct nlattr *resp_ie)
748{
749 union wpa_event_data event;
750
7da2c527
JM		 751 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
752 /*
753 * Avoid reporting two association events that would confuse
754 * the core code.
755 */
756 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) "
757 "when using userspace SME", cmd);
758 return;
759 }
760
da72a1c1
ZY		 761 os_memset(&event, 0, sizeof(event));
762 if (cmd == NL80211_CMD_CONNECT &&
763 nla_get_u16(status) != WLAN_STATUS_SUCCESS) {
764 if (resp_ie) {
765 event.assoc_reject.resp_ies = nla_data(resp_ie);
766 event.assoc_reject.resp_ies_len = nla_len(resp_ie);
767 }
768 event.assoc_reject.status_code = nla_get_u16(status);
769 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
770 return;
771 }
772
773 drv->associated = 1;
774 if (addr)
775 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN);
776
777 if (req_ie) {
778 event.assoc_info.req_ies = nla_data(req_ie);
779 event.assoc_info.req_ies_len = nla_len(req_ie);
780 }
781 if (resp_ie) {
782 event.assoc_info.resp_ies = nla_data(resp_ie);
783 event.assoc_info.resp_ies_len = nla_len(resp_ie);
784 }
785
786 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
787}
c2a04078 788
da1fb17c
JM		 789static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv,
790 enum nl80211_commands cmd, struct nlattr *addr)
791{
792 union wpa_event_data event;
793 enum wpa_event_type ev;
794
795 if (nla_len(addr) != ETH_ALEN)
796 return;
797
798 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR,
799 cmd, MAC2STR((u8 *) nla_data(addr)));
800
801 if (cmd == NL80211_CMD_AUTHENTICATE)
802 ev = EVENT_AUTH_TIMED_OUT;
803 else if (cmd == NL80211_CMD_ASSOCIATE)
804 ev = EVENT_ASSOC_TIMED_OUT;
805 else
806 return;
807
808 os_memset(&event, 0, sizeof(event));
809 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN);
810 wpa_supplicant_event(drv->ctx, ev, &event);
811}
812
813
c2a04078 814static void mlme_event(struct wpa_driver_nl80211_data *drv,
da1fb17c
JM		 815 enum nl80211_commands cmd, struct nlattr *frame,
816 struct nlattr *addr, struct nlattr *timed_out)
c2a04078 817{
da1fb17c
JM		 818 if (timed_out && addr) {
819 mlme_timeout_event(drv, cmd, addr);
820 return;
821 }
822
c2a04078
JM		 823 if (frame == NULL) {
824 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d without frame "
825 "data", cmd);
826 return;
827 }
828
829 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d", cmd);
830 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame",
831 nla_data(frame), nla_len(frame));
832
833 switch (cmd) {
834 case NL80211_CMD_AUTHENTICATE:
835 mlme_event_auth(drv, nla_data(frame), nla_len(frame));
836 break;
837 case NL80211_CMD_ASSOCIATE:
838 mlme_event_assoc(drv, nla_data(frame), nla_len(frame));
839 break;
840 case NL80211_CMD_DEAUTHENTICATE:
841 drv->associated = 0;
842 wpa_supplicant_event(drv->ctx, EVENT_DEAUTH, NULL);
843 break;
844 case NL80211_CMD_DISASSOCIATE:
845 drv->associated = 0;
846 wpa_supplicant_event(drv->ctx, EVENT_DISASSOC, NULL);
847 break;
848 default:
849 break;
850 }
851}
852
5b7b85f6
JM		 853#endif /* HOSTAPD */
854
c2a04078 855
35583f3f
JM		 856static void mlme_event_michael_mic_failure(struct wpa_driver_nl80211_data *drv,
857 struct nlattr *tb[])
858{
859 union wpa_event_data data;
860
861 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure");
862 os_memset(&data, 0, sizeof(data));
863 if (tb[NL80211_ATTR_MAC]) {
864 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address",
865 nla_data(tb[NL80211_ATTR_MAC]),
866 nla_len(tb[NL80211_ATTR_MAC]));
ad1e68e6 867 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]);
35583f3f
JM		 868 }
869 if (tb[NL80211_ATTR_KEY_SEQ]) {
870 wpa_hexdump(MSG_DEBUG, "nl80211: TSC",
871 nla_data(tb[NL80211_ATTR_KEY_SEQ]),
872 nla_len(tb[NL80211_ATTR_KEY_SEQ]));
873 }
874 if (tb[NL80211_ATTR_KEY_TYPE]) {
875 enum nl80211_key_type key_type =
876 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]);
877 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type);
878 if (key_type == NL80211_KEYTYPE_PAIRWISE)
879 data.michael_mic_failure.unicast = 1;
880 } else
881 data.michael_mic_failure.unicast = 1;
882
883 if (tb[NL80211_ATTR_KEY_IDX]) {
884 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]);
885 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id);
886 }
887
888 wpa_supplicant_event(drv->ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
889}
890
891
97865538
JM		 892static int process_event(struct nl_msg *msg, void *arg)
893{
894 struct wpa_driver_nl80211_data *drv = arg;
895 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
896 struct nlattr *tb[NL80211_ATTR_MAX + 1];
897
898 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
899 genlmsg_attrlen(gnlh, 0), NULL);
900
901 if (tb[NL80211_ATTR_IFINDEX]) {
902 int ifindex = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
903 if (ifindex != drv->ifindex) {
904 wpa_printf(MSG_DEBUG, "nl80211: Ignored event (cmd=%d)"
905 " for foreign interface (ifindex %d)",
906 gnlh->cmd, ifindex);
907 return NL_SKIP;
908 }
909 }
910
ad1e68e6
JM		 911 if (drv->ap_scan_as_station &&
912 (gnlh->cmd == NL80211_CMD_NEW_SCAN_RESULTS ||
913 gnlh->cmd == NL80211_CMD_SCAN_ABORTED)) {
914 wpa_driver_nl80211_set_mode(drv, IEEE80211_MODE_AP);
915 drv->ap_scan_as_station = 0;
916 }
917
97865538
JM		 918 switch (gnlh->cmd) {
919 case NL80211_CMD_NEW_SCAN_RESULTS:
920 wpa_printf(MSG_DEBUG, "nl80211: New scan results available");
921 drv->scan_complete_events = 1;
922 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
923 drv->ctx);
924 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, NULL);
925 break;
926 case NL80211_CMD_SCAN_ABORTED:
927 wpa_printf(MSG_DEBUG, "nl80211: Scan aborted");
928 /*
929 * Need to indicate that scan results are available in order
930 * not to make wpa_supplicant stop its scanning.
931 */
932 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
933 drv->ctx);
934 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, NULL);
935 break;
ad1e68e6 936#ifndef HOSTAPD
c2a04078
JM		 937 case NL80211_CMD_AUTHENTICATE:
938 case NL80211_CMD_ASSOCIATE:
939 case NL80211_CMD_DEAUTHENTICATE:
940 case NL80211_CMD_DISASSOCIATE:
da1fb17c
JM		 941 mlme_event(drv, gnlh->cmd, tb[NL80211_ATTR_FRAME],
942 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT]);
c2a04078 943 break;
da72a1c1
ZY		 944 case NL80211_CMD_CONNECT:
945 case NL80211_CMD_ROAM:
946 mlme_event_connect(drv, gnlh->cmd,
947 tb[NL80211_ATTR_STATUS_CODE],
948 tb[NL80211_ATTR_MAC],
949 tb[NL80211_ATTR_REQ_IE],
950 tb[NL80211_ATTR_RESP_IE]);
951 break;
952 case NL80211_CMD_DISCONNECT:
7da2c527
JM		 953 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
954 /*
955 * Avoid reporting two disassociation events that could
956 * confuse the core code.
957 */
958 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect "
959 "event when using userspace SME");
960 break;
961 }
da72a1c1
ZY		 962 drv->associated = 0;
963 wpa_supplicant_event(drv->ctx, EVENT_DISASSOC, NULL);
964 break;
5b7b85f6 965#endif /* HOSTAPD */
35583f3f
JM		 966 case NL80211_CMD_MICHAEL_MIC_FAILURE:
967 mlme_event_michael_mic_failure(drv, tb);
968 break;
97865538 969 default:
c2a04078
JM		 970 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event "
971 "(cmd=%d)", gnlh->cmd);
97865538
JM		 972 break;
973 }
974
975 return NL_SKIP;
976}
977
978
979static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx,
980 void *sock_ctx)
981{
982 struct nl_cb *cb;
983 struct wpa_driver_nl80211_data *drv = eloop_ctx;
984
985 wpa_printf(MSG_DEBUG, "nl80211: Event message available");
986
987 cb = nl_cb_clone(drv->nl_cb);
988 if (!cb)
989 return;
990 nl_cb_set(cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL);
991 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, process_event, drv);
335ce76b 992 nl_recvmsgs(drv->nl_handle_event, cb);
97865538
JM		 993 nl_cb_put(cb);
994}
995
996
2135f224
JM		 997static int hostapd_set_iface_flags(struct wpa_driver_nl80211_data *drv,
998 const char *ifname, int dev_up)
3f5285e8
JM		 999{
1000 struct ifreq ifr;
1001
2135f224
JM		 1002 if (drv->ioctl_sock < 0)
1003 return -1;
1004
3f5285e8
JM		 1005 os_memset(&ifr, 0, sizeof(ifr));
1006 os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
2135f224
JM		 1007
1008 if (ioctl(drv->ioctl_sock, SIOCGIFFLAGS, &ifr) != 0) {
3f5285e8 1009 perror("ioctl[SIOCGIFFLAGS]");
2135f224
JM		 1010 wpa_printf(MSG_DEBUG, "Could not read interface flags (%s)",
1011 ifname);
3f5285e8
JM		 1012 return -1;
1013 }
3f5285e8 1014
2135f224
JM		 1015 if (dev_up) {
1016 if (ifr.ifr_flags & IFF_UP)
1017 return 0;
1018 ifr.ifr_flags |= IFF_UP;
1019 } else {
1020 if (!(ifr.ifr_flags & IFF_UP))
1021 return 0;
1022 ifr.ifr_flags &= ~IFF_UP;
1023 }
3f5285e8 1024
2135f224
JM		 1025 if (ioctl(drv->ioctl_sock, SIOCSIFFLAGS, &ifr) != 0) {
1026 perror("ioctl[SIOCSIFFLAGS]");
3f5285e8
JM		 1027 return -1;
1028 }
3f5285e8 1029
2135f224 1030 return 0;
3f5285e8
JM		 1031}
1032
1033
6d158490
LR		 1034/**
1035 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain
1036 * @priv: driver_nl80211 private data
1037 * @alpha2_arg: country to which to switch to
1038 * Returns: 0 on success, -1 on failure
1039 *
1040 * This asks nl80211 to set the regulatory domain for given
1041 * country ISO / IEC alpha2.
1042 */
1043static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg)
1044{
1045 struct wpa_driver_nl80211_data *drv = priv;
1046 char alpha2[3];
1047 struct nl_msg *msg;
1048
1049 msg = nlmsg_alloc();
1050 if (!msg)
e785c2ba 1051 return -ENOMEM;
6d158490
LR		 1052
1053 alpha2[0] = alpha2_arg[0];
1054 alpha2[1] = alpha2_arg[1];
1055 alpha2[2] = '\0';
1056
1057 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1058 0, NL80211_CMD_REQ_SET_REG, 0);
1059
1060 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2);
1061 if (send_and_recv_msgs(drv, msg, NULL, NULL))
1062 return -EINVAL;
1063 return 0;
1064nla_put_failure:
1065 return -EINVAL;
1066}
1067
1068
bbaf0837 1069#ifndef HOSTAPD
80bc75f1
JM		 1070struct wiphy_info_data {
1071 int max_scan_ssids;
1581b38b 1072 int ap_supported;
93d11400
ZY		 1073 int auth_supported;
1074 int connect_supported;
80bc75f1
JM		 1075};
1076
1077
1078static int wiphy_info_handler(struct nl_msg *msg, void *arg)
1079{
1080 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1081 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1082 struct wiphy_info_data *info = arg;
1083
1084 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1085 genlmsg_attrlen(gnlh, 0), NULL);
1086
1087 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS])
1088 info->max_scan_ssids =
1089 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]);
1090
1581b38b
JM		 1091 if (tb[NL80211_ATTR_SUPPORTED_IFTYPES]) {
1092 struct nlattr *nl_mode;
1093 int i;
1094 nla_for_each_nested(nl_mode,
1095 tb[NL80211_ATTR_SUPPORTED_IFTYPES], i) {
1096 if (nl_mode->nla_type == NL80211_IFTYPE_AP) {
1097 info->ap_supported = 1;
1098 break;
1099 }
1100 }
1101 }
1102
93d11400
ZY		 1103 if (tb[NL80211_ATTR_SUPPORTED_COMMANDS]) {
1104 struct nlattr *nl_cmd;
1105 int i;
1106
1107 nla_for_each_nested(nl_cmd,
1108 tb[NL80211_ATTR_SUPPORTED_COMMANDS], i) {
1109 u32 cmd = nla_get_u32(nl_cmd);
1110 if (cmd == NL80211_CMD_AUTHENTICATE)
1111 info->auth_supported = 1;
1112 else if (cmd == NL80211_CMD_CONNECT)
1113 info->connect_supported = 1;
1114 }
1115 }
1116
80bc75f1
JM		 1117 return NL_SKIP;
1118}
1119
1120
1121static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv,
1122 struct wiphy_info_data *info)
1123{
1124 struct nl_msg *msg;
1125
1126 os_memset(info, 0, sizeof(*info));
1127 msg = nlmsg_alloc();
1128 if (!msg)
1129 return -1;
1130
1131 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1132 0, NL80211_CMD_GET_WIPHY, 0);
1133
1134 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1135
1136 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info) == 0)
1137 return 0;
1138 msg = NULL;
1139nla_put_failure:
1140 nlmsg_free(msg);
1141 return -1;
1142}
1143
1144
93d11400 1145static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
80bc75f1
JM		 1146{
1147 struct wiphy_info_data info;
1148 if (wpa_driver_nl80211_get_info(drv, &info))
93d11400 1149 return -1;
80bc75f1 1150 drv->has_capability = 1;
1b2a72e8
JM		 1151 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */
1152 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
1153 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
1154 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
1155 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
1156 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 |
1157 WPA_DRIVER_CAPA_ENC_WEP104 |
1158 WPA_DRIVER_CAPA_ENC_TKIP |
1159 WPA_DRIVER_CAPA_ENC_CCMP;
1160
80bc75f1 1161 drv->capa.max_scan_ssids = info.max_scan_ssids;
1581b38b
JM		 1162 if (info.ap_supported)
1163 drv->capa.flags |= WPA_DRIVER_FLAGS_AP;
93d11400
ZY		 1164
1165 if (info.auth_supported)
1166 drv->capa.flags |= WPA_DRIVER_FLAGS_SME;
1167 else if (!info.connect_supported) {
1168 wpa_printf(MSG_INFO, "nl80211: Driver does not support "
1169 "authentication/association or connect commands");
1170 return -1;
1171 }
1172
0194fedb
JB		 1173 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE;
1174
93d11400 1175 return 0;
80bc75f1 1176}
bbaf0837 1177#endif /* HOSTAPD */
80bc75f1
JM		 1178
1179
9fff9fdc
JM		 1180static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv,
1181 void *ctx)
3f5285e8 1182{
9fff9fdc 1183 int ret;
3f5285e8 1184
9fff9fdc 1185 /* Initialize generic netlink and nl80211 */
3f5285e8
JM		 1186
1187 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
1188 if (drv->nl_cb == NULL) {
1189 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
1190 "callbacks");
1191 goto err1;
1192 }
1193
1194 drv->nl_handle = nl_handle_alloc_cb(drv->nl_cb);
1195 if (drv->nl_handle == NULL) {
1196 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
1197 "callbacks");
1198 goto err2;
1199 }
1200
335ce76b
JM		 1201 drv->nl_handle_event = nl_handle_alloc_cb(drv->nl_cb);
1202 if (drv->nl_handle_event == NULL) {
1203 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
1204 "callbacks (event)");
1205 goto err2b;
1206 }
1207
3f5285e8
JM		 1208 if (genl_connect(drv->nl_handle)) {
1209 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
1210 "netlink");
1211 goto err3;
1212 }
1213
335ce76b
JM		 1214 if (genl_connect(drv->nl_handle_event)) {
1215 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
1216 "netlink (event)");
1217 goto err3;
1218 }
1219
9fff9fdc
JM		 1220#ifdef CONFIG_LIBNL20
1221 if (genl_ctrl_alloc_cache(drv->nl_handle, &drv->nl_cache) < 0) {
1222 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1223 "netlink cache");
1224 goto err3;
1225 }
335ce76b
JM		 1226 if (genl_ctrl_alloc_cache(drv->nl_handle_event, &drv->nl_cache_event) <
1227 0) {
1228 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1229 "netlink cache (event)");
1230 goto err3b;
1231 }
9fff9fdc 1232#else /* CONFIG_LIBNL20 */
3f5285e8
JM		 1233 drv->nl_cache = genl_ctrl_alloc_cache(drv->nl_handle);
1234 if (drv->nl_cache == NULL) {
1235 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1236 "netlink cache");
1237 goto err3;
1238 }
335ce76b
JM		 1239 drv->nl_cache_event = genl_ctrl_alloc_cache(drv->nl_handle_event);
1240 if (drv->nl_cache_event == NULL) {
1241 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1242 "netlink cache (event)");
1243 goto err3b;
1244 }
9fff9fdc
JM		 1245#endif /* CONFIG_LIBNL20 */
1246
3f5285e8
JM		 1247 drv->nl80211 = genl_ctrl_search_by_name(drv->nl_cache, "nl80211");
1248 if (drv->nl80211 == NULL) {
1249 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not "
1250 "found");
1251 goto err4;
1252 }
1253
97865538
JM		 1254 ret = nl_get_multicast_id(drv, "nl80211", "scan");
1255 if (ret >= 0)
335ce76b 1256 ret = nl_socket_add_membership(drv->nl_handle_event, ret);
97865538
JM		 1257 if (ret < 0) {
1258 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
1259 "membership for scan events: %d (%s)",
1260 ret, strerror(-ret));
1261 goto err4;
1262 }
c2a04078
JM		 1263
1264 ret = nl_get_multicast_id(drv, "nl80211", "mlme");
1265 if (ret >= 0)
335ce76b 1266 ret = nl_socket_add_membership(drv->nl_handle_event, ret);
c2a04078
JM		 1267 if (ret < 0) {
1268 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
1269 "membership for mlme events: %d (%s)",
1270 ret, strerror(-ret));
1271 goto err4;
1272 }
c2a04078 1273
335ce76b 1274 eloop_register_read_sock(nl_socket_get_fd(drv->nl_handle_event),
97865538
JM		 1275 wpa_driver_nl80211_event_receive, drv, ctx);
1276
9fff9fdc
JM		 1277 return 0;
1278
1279err4:
335ce76b
JM		 1280 nl_cache_free(drv->nl_cache_event);
1281err3b:
9fff9fdc
JM		 1282 nl_cache_free(drv->nl_cache);
1283err3:
335ce76b
JM		 1284 nl_handle_destroy(drv->nl_handle_event);
1285err2b:
9fff9fdc
JM		 1286 nl_handle_destroy(drv->nl_handle);
1287err2:
1288 nl_cb_put(drv->nl_cb);
1289err1:
1290 return -1;
1291}
1292
1293
bbaf0837
JM		 1294static int wpa_driver_nl80211_init_link_events(
1295 struct wpa_driver_nl80211_data *drv)
1296{
1297#ifdef HOSTAPD
1298 return 0;
1299#else /* HOSTAPD */
1300 int s;
1301 struct sockaddr_nl local;
1302
1303 s = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
1304 if (s < 0) {
1305 perror("socket(PF_NETLINK,SOCK_RAW,NETLINK_ROUTE)");
7af376e4 1306 return -1;
bbaf0837
JM		 1307 }
1308
1309 os_memset(&local, 0, sizeof(local));
1310 local.nl_family = AF_NETLINK;
1311 local.nl_groups = RTMGRP_LINK;
1312 if (bind(s, (struct sockaddr *) &local, sizeof(local)) < 0) {
1313 perror("bind(netlink)");
1314 close(s);
1315 return -1;
1316 }
1317
1318 eloop_register_read_sock(s, wpa_driver_nl80211_event_receive_link, drv,
7af376e4 1319 drv->ctx);
bbaf0837
JM		 1320 drv->link_event_sock = s;
1321
1322 return 0;
1323#endif /* HOSTAPD */
1324}
1325
1326
9fff9fdc
JM		 1327/**
1328 * wpa_driver_nl80211_init - Initialize nl80211 driver interface
1329 * @ctx: context to be used when calling wpa_supplicant functions,
1330 * e.g., wpa_supplicant_event()
1331 * @ifname: interface name, e.g., wlan0
1332 * Returns: Pointer to private data, %NULL on failure
1333 */
1334static void * wpa_driver_nl80211_init(void *ctx, const char *ifname)
1335{
9fff9fdc
JM		 1336 struct wpa_driver_nl80211_data *drv;
1337
1338 drv = os_zalloc(sizeof(*drv));
1339 if (drv == NULL)
1340 return NULL;
1341 drv->ctx = ctx;
1342 os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
9fff9fdc
JM		 1343 drv->monitor_ifidx = -1;
1344 drv->monitor_sock = -1;
bbaf0837
JM		 1345 drv->link_event_sock = -1;
1346 drv->ioctl_sock = -1;
9fff9fdc 1347
bbaf0837
JM		 1348 if (wpa_driver_nl80211_init_nl(drv, ctx)) {
1349 os_free(drv);
1350 return NULL;
1351 }
9fff9fdc 1352
3f5285e8
JM		 1353 drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
1354 if (drv->ioctl_sock < 0) {
1355 perror("socket(PF_INET,SOCK_DGRAM)");
bbaf0837 1356 goto failed;
3f5285e8
JM		 1357 }
1358
bbaf0837
JM		 1359 if (wpa_driver_nl80211_init_link_events(drv) ||
1360 wpa_driver_nl80211_finish_drv_init(drv))
1361 goto failed;
7524cfb1
JM		 1362
1363 return drv;
1364
bbaf0837
JM		 1365failed:
1366 if (drv->link_event_sock >= 0) {
1367 eloop_unregister_read_sock(drv->link_event_sock);
1368 close(drv->link_event_sock);
1369 }
1370 if (drv->ioctl_sock >= 0)
1371 close(drv->ioctl_sock);
1372
7524cfb1 1373 genl_family_put(drv->nl80211);
7524cfb1 1374 nl_cache_free(drv->nl_cache);
7524cfb1 1375 nl_handle_destroy(drv->nl_handle);
7524cfb1 1376 nl_cb_put(drv->nl_cb);
bbaf0837 1377
7524cfb1
JM		 1378 os_free(drv);
1379 return NULL;
1380}
1381
1382
362f781e 1383static int
7524cfb1
JM		 1384wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv)
1385{
a87c9d96
JM		 1386 drv->ifindex = if_nametoindex(drv->ifname);
1387
bbaf0837 1388#ifndef HOSTAPD
ad1e68e6 1389 if (wpa_driver_nl80211_set_mode(drv, IEEE80211_MODE_INFRA) < 0) {
a87c9d96
JM		 1390 wpa_printf(MSG_DEBUG, "nl80211: Could not configure driver to "
1391 "use managed mode");
1392 }
1393
2135f224
JM		 1394 if (hostapd_set_iface_flags(drv, drv->ifname, 1)) {
1395 wpa_printf(MSG_ERROR, "Could not set interface '%s' "
1396 "UP", drv->ifname);
362f781e
JM		 1397 return -1;
1398 }
3f5285e8 1399
93d11400
ZY		 1400 if (wpa_driver_nl80211_capa(drv))
1401 return -1;
80bc75f1 1402
3f5285e8 1403 wpa_driver_nl80211_send_oper_ifla(drv, 1, IF_OPER_DORMANT);
bbaf0837 1404#endif /* HOSTAPD */
362f781e
JM		 1405
1406 return 0;
3f5285e8
JM		 1407}
1408
1409
bbaf0837
JM		 1410#ifdef HOSTAPD
1411static void wpa_driver_nl80211_free_bss(struct wpa_driver_nl80211_data *drv)
1412{
1413 struct i802_bss *bss, *prev;
1414 bss = drv->bss.next;
1415 while (bss) {
1416 prev = bss;
1417 bss = bss->next;
1418 os_free(bss);
1419 }
1420}
1421#endif /* HOSTAPD */
1422
1423
8a27af5c
JM		 1424#if defined(CONFIG_AP) || defined(HOSTAPD)
1425static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv)
1426{
1427 struct nl_msg *msg;
1428
1429 msg = nlmsg_alloc();
1430 if (!msg)
1431 return -ENOMEM;
1432
1433 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1434 0, NL80211_CMD_DEL_BEACON, 0);
1435 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1436
1437 return send_and_recv_msgs(drv, msg, NULL, NULL);
1438 nla_put_failure:
1439 return -ENOBUFS;
1440}
1441#endif /* CONFIG_AP || HOSTAPD */
1442
1443
3f5285e8 1444/**
7e5ba1b9
JM		 1445 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface
1446 * @priv: Pointer to private nl80211 data from wpa_driver_nl80211_init()
3f5285e8
JM		 1447 *
1448 * Shut down driver interface and processing of driver events. Free
1449 * private data buffer if one was allocated in wpa_driver_nl80211_init().
1450 */
7e5ba1b9 1451static void wpa_driver_nl80211_deinit(void *priv)
3f5285e8
JM		 1452{
1453 struct wpa_driver_nl80211_data *drv = priv;
3f5285e8 1454
bbaf0837 1455#if defined(CONFIG_AP) || defined(HOSTAPD)
460456f8 1456 nl80211_remove_monitor_interface(drv);
0915d02c
JM		 1457 if (drv->monitor_sock >= 0) {
1458 eloop_unregister_read_sock(drv->monitor_sock);
1459 close(drv->monitor_sock);
1460 }
8a27af5c
JM		 1461
1462 if (drv->nlmode == NL80211_IFTYPE_AP)
1463 wpa_driver_nl80211_del_beacon(drv);
bbaf0837 1464#endif /* CONFIG_AP || HOSTAPD */
0915d02c 1465
bbaf0837
JM		 1466#ifdef HOSTAPD
1467 if (drv->last_freq_ht) {
1468 /* Clear HT flags from the driver */
1469 struct hostapd_freq_params freq;
1470 os_memset(&freq, 0, sizeof(freq));
1471 freq.freq = drv->last_freq;
1472 i802_set_freq(priv, &freq);
1473 }
1474
bbaf0837
JM		 1475 if (drv->eapol_sock >= 0) {
1476 eloop_unregister_read_sock(drv->eapol_sock);
1477 close(drv->eapol_sock);
1478 }
1479
1480 if (drv->if_indices != drv->default_if_indices)
1481 os_free(drv->if_indices);
1482
1483 wpa_driver_nl80211_free_bss(drv);
1484#else /* HOSTAPD */
37b7d082 1485#ifndef NO_WEXT
36b15723 1486 wpa_driver_nl80211_set_auth_param(drv, IW_AUTH_DROP_UNENCRYPTED, 0);
37b7d082 1487#endif /* NO_WEXT */
3f5285e8
JM		 1488
1489 wpa_driver_nl80211_send_oper_ifla(priv, 0, IF_OPER_UP);
1490
bbaf0837
JM		 1491 if (drv->link_event_sock >= 0) {
1492 eloop_unregister_read_sock(drv->link_event_sock);
1493 close(drv->link_event_sock);
1494 }
1495#endif /* HOSTAPD */
3f5285e8 1496
bbaf0837
JM		 1497 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
1498
1499 (void) hostapd_set_iface_flags(drv, drv->ifname, 0);
ad1e68e6 1500 wpa_driver_nl80211_set_mode(drv, IEEE80211_MODE_INFRA);
3f5285e8 1501
bbaf0837
JM		 1502 if (drv->ioctl_sock >= 0)
1503 close(drv->ioctl_sock);
3f5285e8 1504
335ce76b 1505 eloop_unregister_read_sock(nl_socket_get_fd(drv->nl_handle_event));
3f5285e8
JM		 1506 genl_family_put(drv->nl80211);
1507 nl_cache_free(drv->nl_cache);
335ce76b 1508 nl_cache_free(drv->nl_cache_event);
3f5285e8 1509 nl_handle_destroy(drv->nl_handle);
335ce76b 1510 nl_handle_destroy(drv->nl_handle_event);
3f5285e8
JM		 1511 nl_cb_put(drv->nl_cb);
1512
1513 os_free(drv);
1514}
1515
1516
1517/**
1518 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion
ad1e68e6 1519 * @eloop_ctx: Driver private data
3f5285e8
JM		 1520 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init()
1521 *
1522 * This function can be used as registered timeout when starting a scan to
1523 * generate a scan completed event if the driver does not report this.
1524 */
1525static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx)
1526{
ad1e68e6
JM		 1527 struct wpa_driver_nl80211_data *drv = eloop_ctx;
1528 if (drv->ap_scan_as_station) {
1529 wpa_driver_nl80211_set_mode(drv, IEEE80211_MODE_AP);
1530 drv->ap_scan_as_station = 0;
1531 }
3f5285e8
JM		 1532 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results");
1533 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL);
1534}
1535
1536
1537/**
1538 * wpa_driver_nl80211_scan - Request the driver to initiate scan
ad1e68e6 1539 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
6a1063e0 1540 * @params: Scan parameters
3f5285e8
JM		 1541 * Returns: 0 on success, -1 on failure
1542 */
6a1063e0
JM		 1543static int wpa_driver_nl80211_scan(void *priv,
1544 struct wpa_driver_scan_params *params)
3f5285e8
JM		 1545{
1546 struct wpa_driver_nl80211_data *drv = priv;
3f5285e8 1547 int ret = 0, timeout;
d3a98225 1548 struct nl_msg *msg, *ssids, *freqs;
6a1063e0 1549 size_t i;
3f5285e8 1550
0e75527f
JM		 1551 msg = nlmsg_alloc();
1552 ssids = nlmsg_alloc();
d3a98225
JM		 1553 freqs = nlmsg_alloc();
1554 if (!msg || !ssids || !freqs) {
0e75527f
JM		 1555 nlmsg_free(msg);
1556 nlmsg_free(ssids);
d3a98225 1557 nlmsg_free(freqs);
3f5285e8
JM		 1558 return -1;
1559 }
1560
0e75527f
JM		 1561 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
1562 NL80211_CMD_TRIGGER_SCAN, 0);
1563
1564 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3f5285e8 1565
6a1063e0
JM		 1566 for (i = 0; i < params->num_ssids; i++) {
1567 NLA_PUT(ssids, i + 1, params->ssids[i].ssid_len,
1568 params->ssids[i].ssid);
3f5285e8 1569 }
6a1063e0
JM		 1570 if (params->num_ssids)
1571 nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids);
3f5285e8 1572
d173df52
JM		 1573 if (params->extra_ies) {
1574 NLA_PUT(msg, NL80211_ATTR_IE, params->extra_ies_len,
1575 params->extra_ies);
1576 }
1577
d3a98225
JM		 1578 if (params->freqs) {
1579 for (i = 0; params->freqs[i]; i++)
1580 NLA_PUT_U32(freqs, i + 1, params->freqs[i]);
1581 nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES, freqs);
1582 }
1583
0e75527f
JM		 1584 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
1585 msg = NULL;
1586 if (ret) {
1587 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d "
1588 "(%s)", ret, strerror(-ret));
ad1e68e6
JM		 1589#ifdef HOSTAPD
1590 if (drv->nlmode == NL80211_IFTYPE_AP) {
1591 /*
1592 * mac80211 does not allow scan requests in AP mode, so
1593 * try to do this in station mode.
1594 */
1595 if (wpa_driver_nl80211_set_mode(drv,
1596 IEEE80211_MODE_INFRA))
1597 goto nla_put_failure;
1598
1599 if (wpa_driver_nl80211_scan(drv, params)) {
1600 wpa_driver_nl80211_set_mode(drv,
1601 IEEE80211_MODE_AP);
1602 goto nla_put_failure;
1603 }
1604
1605 /* Restore AP mode when processing scan results */
1606 drv->ap_scan_as_station = 1;
1607 ret = 0;
1608 } else
1609 goto nla_put_failure;
1610#else /* HOSTAPD */
0e75527f 1611 goto nla_put_failure;
ad1e68e6 1612#endif /* HOSTAPD */
3f5285e8
JM		 1613 }
1614
1615 /* Not all drivers generate "scan completed" wireless event, so try to
1616 * read results after a timeout. */
0e75527f 1617 timeout = 10;
3f5285e8
JM		 1618 if (drv->scan_complete_events) {
1619 /*
d173df52
JM		 1620 * The driver seems to deliver events to notify when scan is
1621 * complete, so use longer timeout to avoid race conditions
1622 * with scanning and following association request.
3f5285e8
JM		 1623 */
1624 timeout = 30;
1625 }
1626 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d "
1627 "seconds", ret, timeout);
1628 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
0e75527f
JM		 1629 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout,
1630 drv, drv->ctx);
3f5285e8 1631
0e75527f
JM		 1632nla_put_failure:
1633 nlmsg_free(ssids);
1634 nlmsg_free(msg);
d3a98225 1635 nlmsg_free(freqs);
3f5285e8
JM		 1636 return ret;
1637}
1638
1639
b3db1e1c 1640static int bss_info_handler(struct nl_msg *msg, void *arg)
3f5285e8 1641{
b3db1e1c
JM		 1642 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1643 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1644 struct nlattr *bss[NL80211_BSS_MAX + 1];
1645 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
1646 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC },
1647 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 },
1648 [NL80211_BSS_TSF] = { .type = NLA_U64 },
1649 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 },
1650 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 },
1651 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC },
1652 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 },
1653 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 },
1654 };
1655 struct wpa_scan_results *res = arg;
3f5285e8
JM		 1656 struct wpa_scan_res **tmp;
1657 struct wpa_scan_res *r;
b3db1e1c
JM		 1658 const u8 *ie;
1659 size_t ie_len;
3f5285e8 1660
b3db1e1c
JM		 1661 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1662 genlmsg_attrlen(gnlh, 0), NULL);
1663 if (!tb[NL80211_ATTR_BSS])
1664 return NL_SKIP;
1665 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS],
1666 bss_policy))
1667 return NL_SKIP;
1668 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) {
1669 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
1670 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
1671 } else {
1672 ie = NULL;
1673 ie_len = 0;
1674 }
3f5285e8 1675
b3db1e1c 1676 r = os_zalloc(sizeof(*r) + ie_len);
3f5285e8 1677 if (r == NULL)
b3db1e1c
JM		 1678 return NL_SKIP;
1679 if (bss[NL80211_BSS_BSSID])
1680 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]),
1681 ETH_ALEN);
1682 if (bss[NL80211_BSS_FREQUENCY])
1683 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
1684 if (bss[NL80211_BSS_BEACON_INTERVAL])
1685 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]);
1686 if (bss[NL80211_BSS_CAPABILITY])
1687 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]);
7c2849d2
JM		 1688 r->flags |= WPA_SCAN_NOISE_INVALID;
1689 if (bss[NL80211_BSS_SIGNAL_MBM]) {
b3db1e1c 1690 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]);
7c2849d2
JM		 1691 r->level /= 100; /* mBm to dBm */
1692 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID;
1693 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) {
1694 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]);
1695 r->flags |= WPA_SCAN_LEVEL_INVALID;
1696 } else
1697 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID;
b3db1e1c
JM		 1698 if (bss[NL80211_BSS_TSF])
1699 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]);
1700 r->ie_len = ie_len;
1701 if (ie)
1702 os_memcpy(r + 1, ie, ie_len);
3f5285e8
JM		 1703
1704 tmp = os_realloc(res->res,
1705 (res->num + 1) * sizeof(struct wpa_scan_res *));
1706 if (tmp == NULL) {
1707 os_free(r);
b3db1e1c 1708 return NL_SKIP;
3f5285e8
JM		 1709 }
1710 tmp[res->num++] = r;
1711 res->res = tmp;
b3db1e1c
JM		 1712
1713 return NL_SKIP;
3f5285e8 1714}
b3db1e1c 1715
3f5285e8
JM		 1716
1717/**
1718 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results
1719 * @priv: Pointer to private wext data from wpa_driver_nl80211_init()
1720 * Returns: Scan results on success, -1 on failure
1721 */
7e5ba1b9
JM		 1722static struct wpa_scan_results *
1723wpa_driver_nl80211_get_scan_results(void *priv)
3f5285e8
JM		 1724{
1725 struct wpa_driver_nl80211_data *drv = priv;
b3db1e1c 1726 struct nl_msg *msg;
3f5285e8 1727 struct wpa_scan_results *res;
b3db1e1c 1728 int ret;
3f5285e8
JM		 1729
1730 res = os_zalloc(sizeof(*res));
b3db1e1c
JM		 1731 if (res == NULL)
1732 return 0;
1733 msg = nlmsg_alloc();
1734 if (!msg)
1735 goto nla_put_failure;
3f5285e8 1736
b3db1e1c
JM		 1737 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, NLM_F_DUMP,
1738 NL80211_CMD_GET_SCAN, 0);
1739 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3f5285e8 1740
b3db1e1c
JM		 1741 ret = send_and_recv_msgs(drv, msg, bss_info_handler, res);
1742 msg = NULL;
1743 if (ret == 0) {
1744 wpa_printf(MSG_DEBUG, "Received scan results (%lu BSSes)",
1745 (unsigned long) res->num);
1746 return res;
3f5285e8 1747 }
b3db1e1c
JM		 1748 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
1749 "(%s)", ret, strerror(-ret));
1750nla_put_failure:
1751 nlmsg_free(msg);
1752 wpa_scan_results_free(res);
1753 return NULL;
3f5285e8
JM		 1754}
1755
1756
1ad1cdc2
JM		 1757static int nl_set_encr(int ifindex, struct wpa_driver_nl80211_data *drv,
1758 wpa_alg alg, const u8 *addr, int key_idx, int set_tx,
1759 const u8 *seq, size_t seq_len,
1760 const u8 *key, size_t key_len)
3f5285e8 1761{
3f5285e8 1762 struct nl_msg *msg;
1ad1cdc2 1763 int ret;
3f5285e8 1764
1ad1cdc2
JM		 1765 wpa_printf(MSG_DEBUG, "%s: ifindex=%d alg=%d addr=%p key_idx=%d "
1766 "set_tx=%d seq_len=%lu key_len=%lu",
1767 __func__, ifindex, alg, addr, key_idx, set_tx,
3f5285e8
JM		 1768 (unsigned long) seq_len, (unsigned long) key_len);
1769
1770 msg = nlmsg_alloc();
1ad1cdc2
JM		 1771 if (!msg)
1772 return -ENOMEM;
3f5285e8
JM		 1773
1774 if (alg == WPA_ALG_NONE) {
1ad1cdc2
JM		 1775 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1776 0, NL80211_CMD_DEL_KEY, 0);
3f5285e8 1777 } else {
1ad1cdc2
JM		 1778 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1779 0, NL80211_CMD_NEW_KEY, 0);
3f5285e8 1780 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key);
d723bab4
JM		 1781 switch (alg) {
1782 case WPA_ALG_WEP:
1783 if (key_len == 5)
1784 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
1785 WLAN_CIPHER_SUITE_WEP40);
1786 else
1787 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
1788 WLAN_CIPHER_SUITE_WEP104);
1789 break;
1790 case WPA_ALG_TKIP:
1791 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
1792 WLAN_CIPHER_SUITE_TKIP);
1793 break;
1794 case WPA_ALG_CCMP:
1795 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
1796 WLAN_CIPHER_SUITE_CCMP);
1797 break;
1798 case WPA_ALG_IGTK:
1799 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
1800 WLAN_CIPHER_SUITE_AES_CMAC);
1801 break;
1802 default:
1803 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
1804 "algorithm %d", __func__, alg);
3f5285e8
JM		 1805 nlmsg_free(msg);
1806 return -1;
1807 }
1808 }
1809
849ef835 1810 if (seq && seq_len)
1ad1cdc2
JM		 1811 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq);
1812
3f5285e8
JM		 1813 if (addr && os_memcmp(addr, "\xff\xff\xff\xff\xff\xff", ETH_ALEN) != 0)
1814 {
1815 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr));
1816 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
1817 }
1818 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1ad1cdc2 1819 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
3f5285e8 1820
1ad1cdc2
JM		 1821 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
1822 if (ret == -ENOENT && alg == WPA_ALG_NONE)
1823 ret = 0;
1824 if (ret)
1825 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)",
1826 ret, strerror(-ret));
3f5285e8 1827
1ad1cdc2
JM		 1828 /*
1829 * If we failed or don't need to set the default TX key (below),
1830 * we're done here.
1831 */
1832 if (ret || !set_tx || alg == WPA_ALG_NONE)
1833 return ret;
1834#ifdef HOSTAPD /* FIX: is this needed? */
1835 if (addr)
1836 return ret;
1837#endif /* HOSTAPD */
3f5285e8 1838
1ad1cdc2
JM		 1839 msg = nlmsg_alloc();
1840 if (!msg)
1841 return -ENOMEM;
3f5285e8 1842
1ad1cdc2
JM		 1843 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1844 0, NL80211_CMD_SET_KEY, 0);
1845 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1846 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
1847 if (alg == WPA_ALG_IGTK)
1848 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT);
1849 else
1850 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
3f5285e8 1851
1ad1cdc2
JM		 1852 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
1853 if (ret == -ENOENT)
1854 ret = 0;
1855 if (ret)
1856 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; "
1857 "err=%d %s)", ret, strerror(-ret));
1858 return ret;
3f5285e8
JM		 1859
1860nla_put_failure:
6241fcb1 1861 return -ENOBUFS;
3f5285e8
JM		 1862}
1863
1864
c811d5bc 1865#ifndef HOSTAPD
0194fedb
JB		 1866static int nl_add_key(struct nl_msg *msg, wpa_alg alg,
1867 int key_idx, int defkey,
1868 const u8 *seq, size_t seq_len,
1869 const u8 *key, size_t key_len)
1870{
1871 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY);
1872 if (!key_attr)
1873 return -1;
1874
1875 if (defkey && alg == WPA_ALG_IGTK)
1876 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT);
1877 else if (defkey)
1878 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
1879
1880 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx);
1881
d723bab4
JM		 1882 switch (alg) {
1883 case WPA_ALG_WEP:
1884 if (key_len == 5)
2aa5f847
JM		 1885 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
1886 WLAN_CIPHER_SUITE_WEP40);
d723bab4 1887 else
2aa5f847
JM		 1888 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
1889 WLAN_CIPHER_SUITE_WEP104);
d723bab4
JM		 1890 break;
1891 case WPA_ALG_TKIP:
2aa5f847 1892 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP);
d723bab4
JM		 1893 break;
1894 case WPA_ALG_CCMP:
2aa5f847 1895 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP);
d723bab4
JM		 1896 break;
1897 case WPA_ALG_IGTK:
2aa5f847
JM		 1898 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
1899 WLAN_CIPHER_SUITE_AES_CMAC);
d723bab4
JM		 1900 break;
1901 default:
1902 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
1903 "algorithm %d", __func__, alg);
0194fedb 1904 return -1;
d723bab4 1905 }
0194fedb
JB		 1906
1907 if (seq && seq_len)
1908 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq);
1909
1910 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key);
1911
1912 nla_nest_end(msg, key_attr);
1913
1914 return 0;
1915 nla_put_failure:
1916 return -1;
1917}
1918
c811d5bc 1919
cfaab580
ZY		 1920static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params,
1921 struct nl_msg *msg)
1922{
1923 int i, privacy = 0;
1924 struct nlattr *nl_keys, *nl_key;
1925
1926 for (i = 0; i < 4; i++) {
1927 if (!params->wep_key[i])
1928 continue;
1929 privacy = 1;
1930 break;
1931 }
1932 if (!privacy)
1933 return 0;
1934
1935 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
1936
1937 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS);
1938 if (!nl_keys)
1939 goto nla_put_failure;
1940
1941 for (i = 0; i < 4; i++) {
1942 if (!params->wep_key[i])
1943 continue;
1944
1945 nl_key = nla_nest_start(msg, i);
1946 if (!nl_key)
1947 goto nla_put_failure;
1948
1949 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i],
1950 params->wep_key[i]);
1951 if (params->wep_key_len[i] == 5)
1952 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
1953 WLAN_CIPHER_SUITE_WEP40);
1954 else
1955 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
1956 WLAN_CIPHER_SUITE_WEP104);
1957
1958 NLA_PUT_U8(msg, NL80211_KEY_IDX, i);
1959
1960 if (i == params->wep_tx_keyidx)
1961 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
1962
1963 nla_nest_end(msg, nl_key);
1964 }
1965 nla_nest_end(msg, nl_keys);
1966
1967 return 0;
1968
1969nla_put_failure:
1970 return -ENOBUFS;
1971}
1972
1973
1ad1cdc2
JM		 1974static int wpa_driver_nl80211_set_key(void *priv, wpa_alg alg,
1975 const u8 *addr, int key_idx,
1976 int set_tx, const u8 *seq,
1977 size_t seq_len,
1978 const u8 *key, size_t key_len)
1979{
1980 struct wpa_driver_nl80211_data *drv = priv;
1981 return nl_set_encr(drv->ifindex, drv, alg, addr, key_idx, set_tx, seq,
1982 seq_len, key, key_len);
1983}
1984
1985
c2a04078
JM		 1986static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
1987 const u8 *addr, int cmd, u16 reason_code)
1988{
1989 int ret = -1;
1990 struct nl_msg *msg;
1991
1992 msg = nlmsg_alloc();
1993 if (!msg)
1994 return -1;
1995
1996 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0, cmd, 0);
1997
1998 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1999 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code);
2000 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
2001
2002 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2003 msg = NULL;
2004 if (ret) {
2005 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
2006 "(%s)", ret, strerror(-ret));
2007 goto nla_put_failure;
2008 }
2009 ret = 0;
2010
2011nla_put_failure:
2012 nlmsg_free(msg);
2013 return ret;
2014}
3f5285e8
JM		 2015
2016
cfaab580
ZY		 2017static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv,
2018 const u8 *addr, int reason_code)
2019{
2020 wpa_printf(MSG_DEBUG, "%s", __func__);
2021 drv->associated = 0;
2022 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISCONNECT,
2023 reason_code);
2024}
2025
2026
3f5285e8 2027static int wpa_driver_nl80211_deauthenticate(void *priv, const u8 *addr,
c2a04078 2028 int reason_code)
3f5285e8
JM		 2029{
2030 struct wpa_driver_nl80211_data *drv = priv;
cfaab580
ZY		 2031 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
2032 return wpa_driver_nl80211_disconnect(drv, addr, reason_code);
c2a04078 2033 wpa_printf(MSG_DEBUG, "%s", __func__);
13405f35 2034 drv->associated = 0;
c2a04078
JM		 2035 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE,
2036 reason_code);
3f5285e8
JM		 2037}
2038
2039
2040static int wpa_driver_nl80211_disassociate(void *priv, const u8 *addr,
c2a04078 2041 int reason_code)
3f5285e8
JM		 2042{
2043 struct wpa_driver_nl80211_data *drv = priv;
cfaab580
ZY		 2044 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
2045 return wpa_driver_nl80211_disconnect(drv, addr, reason_code);
c2a04078 2046 wpa_printf(MSG_DEBUG, "%s", __func__);
13405f35 2047 drv->associated = 0;
c2a04078
JM		 2048 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISASSOCIATE,
2049 reason_code);
3f5285e8
JM		 2050}
2051
2052
c2a04078
JM		 2053static int wpa_driver_nl80211_authenticate(
2054 void *priv, struct wpa_driver_auth_params *params)
2055{
2056 struct wpa_driver_nl80211_data *drv = priv;
a0b2f99b 2057 int ret = -1, i;
c2a04078
JM		 2058 struct nl_msg *msg;
2059 enum nl80211_auth_type type;
2060
2061 drv->associated = 0;
2062
2063 msg = nlmsg_alloc();
2064 if (!msg)
2065 return -1;
2066
2067 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)",
2068 drv->ifindex);
a0b2f99b 2069
0194fedb
JB		 2070 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
2071 NL80211_CMD_AUTHENTICATE, 0);
2072
a0b2f99b
JM		 2073 for (i = 0; i < 4; i++) {
2074 if (!params->wep_key[i])
2075 continue;
2076 wpa_driver_nl80211_set_key(drv, WPA_ALG_WEP, NULL, i,
2077 i == params->wep_tx_keyidx, NULL, 0,
2078 params->wep_key[i],
2079 params->wep_key_len[i]);
0194fedb
JB		 2080 if (params->wep_tx_keyidx != i)
2081 continue;
2082 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0,
2083 params->wep_key[i], params->wep_key_len[i])) {
2084 nlmsg_free(msg);
2085 return -1;
2086 }
a0b2f99b
JM		 2087 }
2088
c2a04078
JM		 2089 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2090 if (params->bssid) {
2091 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
2092 MAC2STR(params->bssid));
2093 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
2094 }
2095 if (params->freq) {
2096 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
2097 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
2098 }
2099 if (params->ssid) {
2100 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
2101 params->ssid, params->ssid_len);
2102 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
2103 params->ssid);
2104 }
2105 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len);
2106 if (params->ie)
2107 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie);
2108 /*
2109 * TODO: if multiple auth_alg options enabled, try them one by one if
2110 * the AP rejects authentication due to unknown auth alg
2111 */
2112 if (params->auth_alg & AUTH_ALG_OPEN_SYSTEM)
2113 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2114 else if (params->auth_alg & AUTH_ALG_SHARED_KEY)
2115 type = NL80211_AUTHTYPE_SHARED_KEY;
2116 else if (params->auth_alg & AUTH_ALG_LEAP)
2117 type = NL80211_AUTHTYPE_NETWORK_EAP;
2118 else if (params->auth_alg & AUTH_ALG_FT)
2119 type = NL80211_AUTHTYPE_FT;
2120 else
2121 goto nla_put_failure;
2122 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
2123 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
2124
2125 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2126 msg = NULL;
2127 if (ret) {
2128 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
2129 "(%s)", ret, strerror(-ret));
2130 goto nla_put_failure;
2131 }
2132 ret = 0;
2133 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send "
2134 "successfully");
2135
2136nla_put_failure:
2137 nlmsg_free(msg);
2138 return ret;
2139}
2140
c811d5bc
JM		 2141#endif /* HOSTAPD */
2142
c2a04078 2143
c3965310 2144#if defined(CONFIG_AP) || defined(HOSTAPD)
282d5590
JM		 2145
2146struct phy_info_arg {
2147 u16 *num_modes;
2148 struct hostapd_hw_modes *modes;
2149};
2150
2151static int phy_info_handler(struct nl_msg *msg, void *arg)
2152{
2153 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
2154 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2155 struct phy_info_arg *phy_info = arg;
2156
2157 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
2158
2159 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
2160 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
2161 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
2162 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
2163 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG },
2164 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG },
2165 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
2166 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
2167 };
2168
2169 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
2170 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
2171 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
2172 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = { .type = NLA_FLAG },
2173 };
2174
2175 struct nlattr *nl_band;
2176 struct nlattr *nl_freq;
2177 struct nlattr *nl_rate;
2178 int rem_band, rem_freq, rem_rate;
2179 struct hostapd_hw_modes *mode;
2180 int idx, mode_is_set;
2181
2182 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2183 genlmsg_attrlen(gnlh, 0), NULL);
2184
2185 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
2186 return NL_SKIP;
2187
2188 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) {
2189 mode = realloc(phy_info->modes, (*phy_info->num_modes + 1) * sizeof(*mode));
2190 if (!mode)
2191 return NL_SKIP;
2192 phy_info->modes = mode;
2193
2194 mode_is_set = 0;
2195
2196 mode = &phy_info->modes[*(phy_info->num_modes)];
2197 memset(mode, 0, sizeof(*mode));
2198 *(phy_info->num_modes) += 1;
2199
2200 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
2201 nla_len(nl_band), NULL);
2202
2203 if (tb_band[NL80211_BAND_ATTR_HT_CAPA]) {
2204 mode->ht_capab = nla_get_u16(
2205 tb_band[NL80211_BAND_ATTR_HT_CAPA]);
2206 }
2207
2208 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
2209 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
2210 nla_len(nl_freq), freq_policy);
2211 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
2212 continue;
2213 mode->num_channels++;
2214 }
2215
2216 mode->channels = calloc(mode->num_channels, sizeof(struct hostapd_channel_data));
2217 if (!mode->channels)
2218 return NL_SKIP;
2219
2220 idx = 0;
2221
2222 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
2223 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
2224 nla_len(nl_freq), freq_policy);
2225 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
2226 continue;
2227
2228 mode->channels[idx].freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
2229 mode->channels[idx].flag = 0;
2230
2231 if (!mode_is_set) {
2232 /* crude heuristic */
2233 if (mode->channels[idx].freq < 4000)
2234 mode->mode = HOSTAPD_MODE_IEEE80211B;
2235 else
2236 mode->mode = HOSTAPD_MODE_IEEE80211A;
2237 mode_is_set = 1;
2238 }
2239
2240 /* crude heuristic */
2241 if (mode->channels[idx].freq < 4000)
5a0ffb5f 2242 if (mode->channels[idx].freq == 2484)
282d5590
JM		 2243 mode->channels[idx].chan = 14;
2244 else
2245 mode->channels[idx].chan = (mode->channels[idx].freq - 2407) / 5;
2246 else
2247 mode->channels[idx].chan = mode->channels[idx].freq/5 - 1000;
2248
2249 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
2250 mode->channels[idx].flag |=
2251 HOSTAPD_CHAN_DISABLED;
2252 if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
2253 mode->channels[idx].flag |=
2254 HOSTAPD_CHAN_PASSIVE_SCAN;
2255 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS])
2256 mode->channels[idx].flag |=
2257 HOSTAPD_CHAN_NO_IBSS;
2258 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
2259 mode->channels[idx].flag |=
2260 HOSTAPD_CHAN_RADAR;
2261
2262 if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] &&
2263 !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
2264 mode->channels[idx].max_tx_power =
2265 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100;
2266
2267 idx++;
2268 }
2269
2270 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
2271 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
2272 nla_len(nl_rate), rate_policy);
2273 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
2274 continue;
2275 mode->num_rates++;
2276 }
2277
2278 mode->rates = calloc(mode->num_rates, sizeof(struct hostapd_rate_data));
2279 if (!mode->rates)
2280 return NL_SKIP;
2281
2282 idx = 0;
2283
2284 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
2285 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
2286 nla_len(nl_rate), rate_policy);
2287 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
2288 continue;
2289 mode->rates[idx].rate = nla_get_u32(tb_rate[NL80211_BITRATE_ATTR_RATE]);
2290
2291 /* crude heuristic */
2292 if (mode->mode == HOSTAPD_MODE_IEEE80211B &&
2293 mode->rates[idx].rate > 200)
2294 mode->mode = HOSTAPD_MODE_IEEE80211G;
2295
2296 if (tb_rate[NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE])
2297 mode->rates[idx].flags |= HOSTAPD_RATE_PREAMBLE2;
2298
2299 idx++;
2300 }
2301 }
2302
2303 return NL_SKIP;
2304}
2305
2306static struct hostapd_hw_modes *
2307wpa_driver_nl80211_add_11b(struct hostapd_hw_modes *modes, u16 *num_modes)
2308{
2309 u16 m;
2310 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
2311 int i, mode11g_idx = -1;
2312
2313 /* If only 802.11g mode is included, use it to construct matching
2314 * 802.11b mode data. */
2315
2316 for (m = 0; m < *num_modes; m++) {
2317 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
2318 return modes; /* 802.11b already included */
2319 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
2320 mode11g_idx = m;
2321 }
2322
2323 if (mode11g_idx < 0)
2324 return modes; /* 2.4 GHz band not supported at all */
2325
2326 nmodes = os_realloc(modes, (*num_modes + 1) * sizeof(*nmodes));
2327 if (nmodes == NULL)
2328 return modes; /* Could not add 802.11b mode */
2329
2330 mode = &nmodes[*num_modes];
2331 os_memset(mode, 0, sizeof(*mode));
2332 (*num_modes)++;
2333 modes = nmodes;
2334
2335 mode->mode = HOSTAPD_MODE_IEEE80211B;
2336
2337 mode11g = &modes[mode11g_idx];
2338 mode->num_channels = mode11g->num_channels;
2339 mode->channels = os_malloc(mode11g->num_channels *
2340 sizeof(struct hostapd_channel_data));
2341 if (mode->channels == NULL) {
2342 (*num_modes)--;
2343 return modes; /* Could not add 802.11b mode */
2344 }
2345 os_memcpy(mode->channels, mode11g->channels,
2346 mode11g->num_channels * sizeof(struct hostapd_channel_data));
2347
2348 mode->num_rates = 0;
2349 mode->rates = os_malloc(4 * sizeof(struct hostapd_rate_data));
2350 if (mode->rates == NULL) {
2351 os_free(mode->channels);
2352 (*num_modes)--;
2353 return modes; /* Could not add 802.11b mode */
2354 }
2355
2356 for (i = 0; i < mode11g->num_rates; i++) {
2357 if (mode11g->rates[i].rate > 110 ||
2358 mode11g->rates[i].flags &
2359 (HOSTAPD_RATE_ERP | HOSTAPD_RATE_OFDM))
2360 continue;
2361 mode->rates[mode->num_rates] = mode11g->rates[i];
2362 mode->num_rates++;
2363 if (mode->num_rates == 4)
2364 break;
2365 }
2366
2367 if (mode->num_rates == 0) {
2368 os_free(mode->channels);
2369 os_free(mode->rates);
2370 (*num_modes)--;
2371 return modes; /* No 802.11b rates */
2372 }
2373
2374 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
2375 "information");
2376
2377 return modes;
2378}
2379
2380
2381static struct hostapd_hw_modes *
2382wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
2383{
2384 struct wpa_driver_nl80211_data *drv = priv;
2385 struct nl_msg *msg;
2386 struct phy_info_arg result = {
2387 .num_modes = num_modes,
2388 .modes = NULL,
2389 };
2390
2391 *num_modes = 0;
2392 *flags = 0;
2393
2394 msg = nlmsg_alloc();
2395 if (!msg)
2396 return NULL;
2397
2398 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2399 0, NL80211_CMD_GET_WIPHY, 0);
2400
2401 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2402
2403 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0)
2404 return wpa_driver_nl80211_add_11b(result.modes, num_modes);
2405 nla_put_failure:
2406 return NULL;
2407}
2408
2409
2c2010ac
JM		 2410static int wpa_driver_nl80211_send_frame(struct wpa_driver_nl80211_data *drv,
2411 const void *data, size_t len,
2412 int encrypt)
2413{
2414 __u8 rtap_hdr[] = {
2415 0x00, 0x00, /* radiotap version */
2416 0x0e, 0x00, /* radiotap length */
2417 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */
2418 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */
2419 0x00, /* padding */
2420 0x00, 0x00, /* RX and TX flags to indicate that */
2421 0x00, 0x00, /* this is the injected frame directly */
2422 };
2423 struct iovec iov[2] = {
2424 {
2425 .iov_base = &rtap_hdr,
2426 .iov_len = sizeof(rtap_hdr),
2427 },
2428 {
2429 .iov_base = (void *) data,
2430 .iov_len = len,
2431 }
2432 };
2433 struct msghdr msg = {
2434 .msg_name = NULL,
2435 .msg_namelen = 0,
2436 .msg_iov = iov,
2437 .msg_iovlen = 2,
2438 .msg_control = NULL,
2439 .msg_controllen = 0,
2440 .msg_flags = 0,
2441 };
2442
2443 if (encrypt)
2444 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP;
2445
2446 return sendmsg(drv->monitor_sock, &msg, 0);
2447}
2448
2449
2450static int wpa_driver_nl80211_send_mlme(void *priv, const u8 *data,
2451 size_t data_len)
2452{
2453 struct wpa_driver_nl80211_data *drv = priv;
2454 struct ieee80211_mgmt *mgmt;
7a47d567 2455 int encrypt = 1;
2c2010ac
JM		 2456 u16 fc;
2457
2458 mgmt = (struct ieee80211_mgmt *) data;
2459 fc = le_to_host16(mgmt->frame_control);
2460
2461 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
2462 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) {
2463 /*
2464 * Only one of the authentication frame types is encrypted.
2465 * In order for static WEP encryption to work properly (i.e.,
2466 * to not encrypt the frame), we need to tell mac80211 about
2467 * the frames that must not be encrypted.
2468 */
2469 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
2470 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction);
7a47d567
JB		 2471 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3)
2472 encrypt = 0;
2c2010ac
JM		 2473 }
2474
7a47d567 2475 return wpa_driver_nl80211_send_frame(drv, data, data_len, encrypt);
2c2010ac
JM		 2476}
2477
2478
b4fd6fab
JM		 2479static int wpa_driver_nl80211_set_beacon_iface(int ifindex, void *priv,
2480 const u8 *head, size_t head_len,
2481 const u8 *tail, size_t tail_len,
2482 int dtim_period)
d2440ba0
JM		 2483{
2484 struct wpa_driver_nl80211_data *drv = priv;
2485 struct nl_msg *msg;
2486 u8 cmd = NL80211_CMD_NEW_BEACON;
2487 int ret;
b4fd6fab
JM		 2488 int beacon_set;
2489#ifdef HOSTAPD
2490 struct i802_bss *bss;
2491
2492 bss = get_bss(drv, ifindex);
2493 if (bss == NULL)
2494 return -ENOENT;
2495 beacon_set = bss->beacon_set;
2496#else /* HOSTAPD */
2497 beacon_set = drv->beacon_set;
2498#endif /* HOSTAPD */
d2440ba0
JM		 2499
2500 msg = nlmsg_alloc();
2501 if (!msg)
2502 return -ENOMEM;
2503
2504 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)",
b4fd6fab
JM		 2505 beacon_set);
2506 if (beacon_set)
d2440ba0
JM		 2507 cmd = NL80211_CMD_SET_BEACON;
2508
2509 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2510 0, cmd, 0);
2511 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, head_len, head);
2512 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, tail_len, tail);
b4fd6fab 2513 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
d2440ba0
JM		 2514 if (!drv->beacon_int)
2515 drv->beacon_int = 100;
2516 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, drv->beacon_int);
2517 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, dtim_period);
2518
2519 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2520 if (ret) {
2521 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)",
2522 ret, strerror(-ret));
b4fd6fab
JM		 2523 } else {
2524#ifdef HOSTAPD
2525 bss->beacon_set = 1;
2526#else /* HOSTAPD */
d2440ba0 2527 drv->beacon_set = 1;
b4fd6fab
JM		 2528#endif /* HOSTAPD */
2529 }
d2440ba0
JM		 2530 return ret;
2531 nla_put_failure:
2532 return -ENOBUFS;
2533}
2534
2535
2536static int wpa_driver_nl80211_set_beacon_int(void *priv, int value)
2537{
2538 struct wpa_driver_nl80211_data *drv = priv;
2539 struct nl_msg *msg;
2540
2541 drv->beacon_int = value;
2542
b4fd6fab
JM		 2543#ifdef HOSTAPD
2544 if (!drv->bss.beacon_set)
2545 return 0;
2546#else /* HOSTAPD */
d2440ba0
JM		 2547 if (!drv->beacon_set)
2548 return 0;
b4fd6fab 2549#endif /* HOSTAPD */
d2440ba0
JM		 2550
2551 msg = nlmsg_alloc();
2552 if (!msg)
2553 return -ENOMEM;
2554
b4fd6fab 2555 wpa_printf(MSG_DEBUG, "nl80211: Set beacon interval %d", value);
d2440ba0
JM		 2556 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2557 0, NL80211_CMD_SET_BEACON, 0);
2558 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2559
2560 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, value);
2561
2562 return send_and_recv_msgs(drv, msg, NULL, NULL);
2563 nla_put_failure:
2564 return -ENOBUFS;
2565}
2566
2567
f019981a
JM		 2568static int wpa_driver_nl80211_set_freq(struct wpa_driver_nl80211_data *drv,
2569 int freq, int ht_enabled,
2570 int sec_channel_offset)
1581b38b
JM		 2571{
2572 struct nl_msg *msg;
d2440ba0 2573 int ret;
1581b38b
JM		 2574
2575 msg = nlmsg_alloc();
2576 if (!msg)
2577 return -1;
2578
2579 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
2580 NL80211_CMD_SET_WIPHY, 0);
2581
2582 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
f019981a
JM		 2583 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
2584 if (ht_enabled) {
2585 switch (sec_channel_offset) {
2586 case -1:
2587 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2588 NL80211_CHAN_HT40MINUS);
2589 break;
2590 case 1:
2591 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2592 NL80211_CHAN_HT40PLUS);
2593 break;
2594 default:
2595 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2596 NL80211_CHAN_HT20);
2597 break;
2598 }
2599 }
1581b38b 2600
d2440ba0
JM		 2601 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2602 if (ret == 0)
1581b38b 2603 return 0;
f019981a
JM		 2604 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): "
2605 "%d (%s)", freq, ret, strerror(-ret));
1581b38b
JM		 2606nla_put_failure:
2607 return -1;
2608}
2609
0f4e8b4f
JM		 2610
2611static int wpa_driver_nl80211_sta_add(const char *ifname, void *priv,
2612 struct hostapd_sta_add_params *params)
2613{
2614 struct wpa_driver_nl80211_data *drv = priv;
2615 struct nl_msg *msg;
2616 int ret = -ENOBUFS;
2617
2618 msg = nlmsg_alloc();
2619 if (!msg)
2620 return -ENOMEM;
2621
2622 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2623 0, NL80211_CMD_NEW_STATION, 0);
2624
2625 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(ifname));
2626 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr);
2627 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid);
2628 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len,
2629 params->supp_rates);
2630 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL,
2631 params->listen_interval);
2632
2633#ifdef CONFIG_IEEE80211N
2634 if (params->ht_capabilities) {
2635 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY,
2636 params->ht_capabilities->length,
2637 &params->ht_capabilities->data);
2638 }
2639#endif /* CONFIG_IEEE80211N */
2640
2641 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2642 if (ret)
2643 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_NEW_STATION "
2644 "result: %d (%s)", ret, strerror(-ret));
2645 if (ret == -EEXIST)
2646 ret = 0;
2647 nla_put_failure:
2648 return ret;
2649}
2650
2651
2652static int wpa_driver_nl80211_sta_remove(void *priv, const u8 *addr)
2653{
2654 struct wpa_driver_nl80211_data *drv = priv;
2655 struct nl_msg *msg;
2656 int ret;
2657
2658 msg = nlmsg_alloc();
2659 if (!msg)
2660 return -ENOMEM;
2661
2662 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2663 0, NL80211_CMD_DEL_STATION, 0);
2664
2665 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
2666 if_nametoindex(drv->ifname));
2667 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
2668
2669 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2670 if (ret == -ENOENT)
2671 return 0;
2672 return ret;
2673 nla_put_failure:
2674 return -ENOBUFS;
2675}
2676
f019981a
JM		 2677#endif /* CONFIG_AP || HOSTAPD */
2678
2679
2680#ifdef CONFIG_AP
2681
2682static int wpa_driver_nl80211_set_beacon(void *priv,
2683 const u8 *head, size_t head_len,
2684 const u8 *tail, size_t tail_len,
2685 int dtim_period)
2686{
2687 struct wpa_driver_nl80211_data *drv = priv;
2688 return wpa_driver_nl80211_set_beacon_iface(drv->ifindex, priv,
2689 head, head_len,
2690 tail, tail_len,
2691 dtim_period);
2692}
2693
2135f224
JM		 2694#endif /* CONFIG_AP */
2695
2696#if defined(CONFIG_AP) || defined(HOSTAPD)
1581b38b 2697
0915d02c
JM		 2698static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
2699 int ifidx)
2700{
2701 struct nl_msg *msg;
2702
2135f224
JM		 2703#ifdef HOSTAPD
2704 /* stop listening for EAPOL on this interface */
2705 del_ifidx(drv, ifidx);
2706#endif /* HOSTAPD */
2707
0915d02c
JM		 2708 msg = nlmsg_alloc();
2709 if (!msg)
2710 goto nla_put_failure;
2711
2712 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2713 0, NL80211_CMD_DEL_INTERFACE, 0);
2714 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx);
2715
2716 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
2717 return;
2718 nla_put_failure:
2719 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d).\n",
2720 ifidx);
2721}
2722
2723
a35187e7
KH		 2724static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv,
2725 const char *ifname,
2726 enum nl80211_iftype iftype,
2727 const u8 *addr)
0915d02c
JM		 2728{
2729 struct nl_msg *msg, *flags = NULL;
2730 int ifidx;
2731 int ret = -ENOBUFS;
2732
2733 msg = nlmsg_alloc();
2734 if (!msg)
2735 return -1;
2736
2737 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2738 0, NL80211_CMD_NEW_INTERFACE, 0);
2739 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2740 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname);
2741 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype);
2742
2743 if (iftype == NL80211_IFTYPE_MONITOR) {
2744 int err;
2745
2746 flags = nlmsg_alloc();
2747 if (!flags)
2748 goto nla_put_failure;
2749
2750 NLA_PUT_FLAG(flags, NL80211_MNTR_FLAG_COOK_FRAMES);
2751
2752 err = nla_put_nested(msg, NL80211_ATTR_MNTR_FLAGS, flags);
2753
2754 nlmsg_free(flags);
2755
2756 if (err)
2757 goto nla_put_failure;
2758 }
2759
2760 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2761 if (ret) {
2762 nla_put_failure:
a35187e7
KH		 2763 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)",
2764 ifname, ret, strerror(-ret));
0915d02c
JM		 2765 return ret;
2766 }
2767
2768 ifidx = if_nametoindex(ifname);
2769
2770 if (ifidx <= 0)
2771 return -1;
2772
2135f224
JM		 2773#ifdef HOSTAPD
2774 /* start listening for EAPOL on this interface */
2775 add_ifidx(drv, ifidx);
2776
41d931ee
JM		 2777 if (addr && iftype == NL80211_IFTYPE_AP &&
2778 set_ifhwaddr(drv, ifname, addr)) {
2779 nl80211_remove_iface(drv, ifidx);
2780 return -1;
2135f224
JM		 2781 }
2782#endif /* HOSTAPD */
2783
0915d02c
JM		 2784 return ifidx;
2785}
a35187e7
KH		 2786static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
2787 const char *ifname, enum nl80211_iftype iftype,
2788 const u8 *addr)
2789{
2790 int ret;
2791
2792 ret = nl80211_create_iface_once(drv, ifname, iftype, addr);
2793
2794 /* if error occured and interface exists already */
2795 if (ret == -ENFILE && if_nametoindex(ifname)) {
2796 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname);
2797
2798 /* Try to remove the interface that was already there. */
2799 nl80211_remove_iface(drv, if_nametoindex(ifname));
2800
2801 /* Try to create the interface again */
2802 ret = nl80211_create_iface_once(drv, ifname, iftype, addr);
2803 }
2804
2805 return ret;
2806}
0915d02c 2807
2135f224
JM		 2808#endif /* CONFIG_AP || HOSTAPD */
2809
2810#ifdef CONFIG_AP
0915d02c 2811
0915d02c
JM		 2812void ap_tx_status(void *ctx, const u8 *addr,
2813 const u8 *buf, size_t len, int ack);
3a57305f 2814void ap_rx_from_unknown_sta(void *ctx, struct ieee80211_hdr *hdr, size_t len);
0915d02c
JM		 2815void ap_mgmt_rx(void *ctx, u8 *buf, size_t len, u16 stype,
2816 struct hostapd_frame_info *fi);
2817void ap_mgmt_tx_cb(void *ctx, u8 *buf, size_t len, u16 stype, int ok);
2818
072ad14c
JM		 2819#endif /* CONFIG_AP */
2820
2821#if defined(CONFIG_AP) || defined(HOSTAPD)
0915d02c
JM		 2822
2823static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok)
2824{
2825 struct ieee80211_hdr *hdr;
2826 u16 fc, type, stype;
2827
2828 hdr = (struct ieee80211_hdr *) buf;
2829 fc = le_to_host16(hdr->frame_control);
2830
2831 type = WLAN_FC_GET_TYPE(fc);
2832 stype = WLAN_FC_GET_STYPE(fc);
2833
2834 switch (type) {
2835 case WLAN_FC_TYPE_MGMT:
2836 wpa_printf(MSG_DEBUG, "MGMT (TX callback) %s",
2837 ok ? "ACK" : "fail");
072ad14c
JM		 2838#ifdef HOSTAPD
2839 hostapd_mgmt_tx_cb(ctx, buf, len, stype, ok);
2840#else /* HOSTAPD */
0915d02c 2841 ap_mgmt_tx_cb(ctx, buf, len, stype, ok);
072ad14c 2842#endif /* HOSTAPD */
0915d02c
JM		 2843 break;
2844 case WLAN_FC_TYPE_CTRL:
2845 wpa_printf(MSG_DEBUG, "CTRL (TX callback) %s",
2846 ok ? "ACK" : "fail");
2847 break;
2848 case WLAN_FC_TYPE_DATA:
072ad14c
JM		 2849#ifdef HOSTAPD
2850 hostapd_tx_status(ctx, hdr->addr1, buf, len, ok);
2851#else /* HOSTAPD */
0915d02c 2852 ap_tx_status(ctx, hdr->addr1, buf, len, ok);
072ad14c 2853#endif /* HOSTAPD */
0915d02c
JM		 2854 break;
2855 default:
2856 wpa_printf(MSG_DEBUG, "unknown TX callback frame type %d",
2857 type);
2858 break;
2859 }
2860}
2861
2862
4b9841d3
JM		 2863static void from_unknown_sta(struct wpa_driver_nl80211_data *drv,
2864 struct ieee80211_hdr *hdr, size_t len)
0915d02c 2865{
7da3abe7 2866#ifdef HOSTAPD
4b9841d3
JM		 2867 hostapd_rx_from_unknown_sta(drv->ctx, hdr, len);
2868#else /* HOSTAPD */
3a57305f 2869 ap_rx_from_unknown_sta(drv->ctx, hdr, len);
7da3abe7 2870#endif /* HOSTAPD */
4b9841d3 2871}
0915d02c 2872
4b9841d3
JM		 2873
2874static void handle_frame(struct wpa_driver_nl80211_data *drv,
2875 u8 *buf, size_t len,
2876 struct hostapd_frame_info *hfi)
2877{
2878 struct ieee80211_hdr *hdr;
2879 u16 fc, stype;
0915d02c
JM		 2880
2881 hdr = (struct ieee80211_hdr *) buf;
2882 fc = le_to_host16(hdr->frame_control);
0915d02c
JM		 2883 stype = WLAN_FC_GET_STYPE(fc);
2884
4b9841d3 2885 switch (WLAN_FC_GET_TYPE(fc)) {
0915d02c
JM		 2886 case WLAN_FC_TYPE_MGMT:
2887 if (stype != WLAN_FC_STYPE_BEACON &&
2888 stype != WLAN_FC_STYPE_PROBE_REQ)
2889 wpa_printf(MSG_MSGDUMP, "MGMT");
7da3abe7 2890#ifdef HOSTAPD
4b9841d3 2891 hostapd_mgmt_rx(drv->ctx, buf, len, stype, hfi);
7da3abe7 2892#else /* HOSTAPD */
4b9841d3 2893 ap_mgmt_rx(drv->ctx, buf, len, stype, hfi);
7da3abe7 2894#endif /* HOSTAPD */
0915d02c
JM		 2895 break;
2896 case WLAN_FC_TYPE_CTRL:
2897 /* can only get here with PS-Poll frames */
2898 wpa_printf(MSG_DEBUG, "CTRL");
4b9841d3 2899 from_unknown_sta(drv, hdr, len);
0915d02c
JM		 2900 break;
2901 case WLAN_FC_TYPE_DATA:
4b9841d3 2902 from_unknown_sta(drv, hdr, len);
0915d02c
JM		 2903 break;
2904 }
2905}
2906
2907
2908static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx)
2909{
2910 struct wpa_driver_nl80211_data *drv = eloop_ctx;
2911 int len;
2912 unsigned char buf[3000];
2913 struct ieee80211_radiotap_iterator iter;
2914 int ret;
2915 struct hostapd_frame_info hfi;
4b9841d3 2916 int injected = 0, failed = 0, rxflags = 0;
0915d02c
JM		 2917
2918 len = recv(sock, buf, sizeof(buf), 0);
2919 if (len < 0) {
2920 perror("recv");
2921 return;
2922 }
2923
2924 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) {
2925 printf("received invalid radiotap frame\n");
2926 return;
2927 }
2928
2929 memset(&hfi, 0, sizeof(hfi));
2930
2931 while (1) {
2932 ret = ieee80211_radiotap_iterator_next(&iter);
2933 if (ret == -ENOENT)
2934 break;
2935 if (ret) {
2936 printf("received invalid radiotap frame (%d)\n", ret);
2937 return;
2938 }
2939 switch (iter.this_arg_index) {
2940 case IEEE80211_RADIOTAP_FLAGS:
2941 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS)
2942 len -= 4;
2943 break;
2944 case IEEE80211_RADIOTAP_RX_FLAGS:
2945 rxflags = 1;
2946 break;
2947 case IEEE80211_RADIOTAP_TX_FLAGS:
2948 injected = 1;
2949 failed = le_to_host16((*(uint16_t *) iter.this_arg)) &
2950 IEEE80211_RADIOTAP_F_TX_FAIL;
2951 break;
2952 case IEEE80211_RADIOTAP_DATA_RETRIES:
2953 break;
2954 case IEEE80211_RADIOTAP_CHANNEL:
2955 /* TODO convert from freq/flags to channel number
2956 hfi.channel = XXX;
2957 hfi.phytype = XXX;
2958 */
2959 break;
2960 case IEEE80211_RADIOTAP_RATE:
2961 hfi.datarate = *iter.this_arg * 5;
2962 break;
2963 case IEEE80211_RADIOTAP_DB_ANTSIGNAL:
2964 hfi.ssi_signal = *iter.this_arg;
2965 break;
2966 }
2967 }
2968
2969 if (rxflags && injected)
2970 return;
2971
2972 if (!injected)
4b9841d3
JM		 2973 handle_frame(drv, buf + iter.max_length,
2974 len - iter.max_length, &hfi);
0915d02c 2975 else
4b9841d3
JM		 2976 handle_tx_callback(drv->ctx, buf + iter.max_length,
2977 len - iter.max_length, !failed);
0915d02c
JM		 2978}
2979
2980
2981/*
2982 * we post-process the filter code later and rewrite
2983 * this to the offset to the last instruction
2984 */
2985#define PASS 0xFF
2986#define FAIL 0xFE
2987
2988static struct sock_filter msock_filter_insns[] = {
2989 /*
2990 * do a little-endian load of the radiotap length field
2991 */
2992 /* load lower byte into A */
2993 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2),
2994 /* put it into X (== index register) */
2995 BPF_STMT(BPF_MISC| BPF_TAX, 0),
2996 /* load upper byte into A */
2997 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3),
2998 /* left-shift it by 8 */
2999 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8),
3000 /* or with X */
3001 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0),
3002 /* put result into X */
3003 BPF_STMT(BPF_MISC| BPF_TAX, 0),
3004
3005 /*
3006 * Allow management frames through, this also gives us those
3007 * management frames that we sent ourselves with status
3008 */
3009 /* load the lower byte of the IEEE 802.11 frame control field */
3010 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
3011 /* mask off frame type and version */
3012 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF),
3013 /* accept frame if it's both 0, fall through otherwise */
3014 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0),
3015
3016 /*
3017 * TODO: add a bit to radiotap RX flags that indicates
3018 * that the sending station is not associated, then
3019 * add a filter here that filters on our DA and that flag
3020 * to allow us to deauth frames to that bad station.
3021 *
3022 * Not a regression -- we didn't do it before either.
3023 */
3024
3025#if 0
3026 /*
3027 * drop non-data frames, WDS frames
3028 */
3029 /* load the lower byte of the frame control field */
3030 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
3031 /* mask off QoS bit */
3032 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c),
3033 /* drop non-data frames */
3034 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL),
3035 /* load the upper byte of the frame control field */
3036 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
3037 /* mask off toDS/fromDS */
3038 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03),
3039 /* drop WDS frames */
3040 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, FAIL, 0),
3041#endif
3042
3043 /*
3044 * add header length to index
3045 */
3046 /* load the lower byte of the frame control field */
3047 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
3048 /* mask off QoS bit */
3049 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80),
3050 /* right shift it by 6 to give 0 or 2 */
3051 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6),
3052 /* add data frame header length */
3053 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24),
3054 /* add index, was start of 802.11 header */
3055 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0),
3056 /* move to index, now start of LL header */
3057 BPF_STMT(BPF_MISC | BPF_TAX, 0),
3058
3059 /*
3060 * Accept empty data frames, we use those for
3061 * polling activity.
3062 */
3063 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0),
3064 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0),
3065
3066 /*
3067 * Accept EAPOL frames
3068 */
3069 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0),
3070 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL),
3071 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4),
3072 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL),
3073
3074 /* keep these last two statements or change the code below */
3075 /* return 0 == "DROP" */
3076 BPF_STMT(BPF_RET | BPF_K, 0),
3077 /* return ~0 == "keep all" */
3078 BPF_STMT(BPF_RET | BPF_K, ~0),
3079};
3080
3081static struct sock_fprog msock_filter = {
3082 .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]),
3083 .filter = msock_filter_insns,
3084};
3085
3086
3087static int add_monitor_filter(int s)
3088{
3089 int idx;
3090
3091 /* rewrite all PASS/FAIL jump offsets */
3092 for (idx = 0; idx < msock_filter.len; idx++) {
3093 struct sock_filter *insn = &msock_filter_insns[idx];
3094
3095 if (BPF_CLASS(insn->code) == BPF_JMP) {
3096 if (insn->code == (BPF_JMP|BPF_JA)) {
3097 if (insn->k == PASS)
3098 insn->k = msock_filter.len - idx - 2;
3099 else if (insn->k == FAIL)
3100 insn->k = msock_filter.len - idx - 3;
3101 }
3102
3103 if (insn->jt == PASS)
3104 insn->jt = msock_filter.len - idx - 2;
3105 else if (insn->jt == FAIL)
3106 insn->jt = msock_filter.len - idx - 3;
3107
3108 if (insn->jf == PASS)
3109 insn->jf = msock_filter.len - idx - 2;
3110 else if (insn->jf == FAIL)
3111 insn->jf = msock_filter.len - idx - 3;
3112 }
3113 }
3114
3115 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER,
3116 &msock_filter, sizeof(msock_filter))) {
3117 perror("SO_ATTACH_FILTER");
3118 return -1;
3119 }
3120
3121 return 0;
3122}
3123
3124
460456f8
JM		 3125static void nl80211_remove_monitor_interface(
3126 struct wpa_driver_nl80211_data *drv)
3127{
3128 if (drv->monitor_ifidx >= 0) {
3129 nl80211_remove_iface(drv, drv->monitor_ifidx);
3130 drv->monitor_ifidx = -1;
3131 }
3132}
3133
3134
0915d02c
JM		 3135static int
3136nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv)
3137{
3138 char buf[IFNAMSIZ];
3139 struct sockaddr_ll ll;
3140 int optval;
3141 socklen_t optlen;
0915d02c
JM		 3142
3143 snprintf(buf, IFNAMSIZ, "mon.%s", drv->ifname);
3144 buf[IFNAMSIZ - 1] = '\0';
3145
3146 drv->monitor_ifidx =
2135f224 3147 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL);
0915d02c
JM		 3148
3149 if (drv->monitor_ifidx < 0)
3150 return -1;
3151
2135f224 3152 if (hostapd_set_iface_flags(drv, buf, 1))
0915d02c 3153 goto error;
0915d02c
JM		 3154
3155 memset(&ll, 0, sizeof(ll));
3156 ll.sll_family = AF_PACKET;
3157 ll.sll_ifindex = drv->monitor_ifidx;
3158 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
3159 if (drv->monitor_sock < 0) {
3160 perror("socket[PF_PACKET,SOCK_RAW]");
3161 goto error;
3162 }
3163
3164 if (add_monitor_filter(drv->monitor_sock)) {
3165 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor "
3166 "interface; do filtering in user space");
3167 /* This works, but will cost in performance. */
3168 }
3169
2135f224 3170 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) {
0915d02c
JM		 3171 perror("monitor socket bind");
3172 goto error;
3173 }
3174
3175 optlen = sizeof(optval);
3176 optval = 20;
3177 if (setsockopt
3178 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) {
3179 perror("Failed to set socket priority");
3180 goto error;
3181 }
3182
3183 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read,
3184 drv, NULL)) {
3185 printf("Could not register monitor read socket\n");
3186 goto error;
3187 }
3188
3189 return 0;
3190 error:
460456f8 3191 nl80211_remove_monitor_interface(drv);
0915d02c
JM		 3192 return -1;
3193}
3194
db149ac9
JM		 3195
3196static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
3197
3198static int wpa_driver_nl80211_hapd_send_eapol(
3199 void *priv, const u8 *addr, const u8 *data,
3200 size_t data_len, int encrypt, const u8 *own_addr)
3201{
3202 struct wpa_driver_nl80211_data *drv = priv;
3203 struct ieee80211_hdr *hdr;
3204 size_t len;
3205 u8 *pos;
3206 int res;
3207#if 0 /* FIX */
3208 int qos = sta->flags & WLAN_STA_WME;
3209#else
3210 int qos = 0;
3211#endif
3212
3213 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 +
3214 data_len;
3215 hdr = os_zalloc(len);
3216 if (hdr == NULL) {
3217 printf("malloc() failed for i802_send_data(len=%lu)\n",
3218 (unsigned long) len);
3219 return -1;
3220 }
3221
3222 hdr->frame_control =
3223 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA);
3224 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS);
3225 if (encrypt)
3226 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP);
3227#if 0 /* To be enabled if qos determination is added above */
3228 if (qos) {
3229 hdr->frame_control |=
3230 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4);
3231 }
3232#endif
3233
3234 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN);
3235 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
3236 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
3237 pos = (u8 *) (hdr + 1);
3238
3239#if 0 /* To be enabled if qos determination is added above */
3240 if (qos) {
3241 /* add an empty QoS header if needed */
3242 pos[0] = 0;
3243 pos[1] = 0;
3244 pos += 2;
3245 }
3246#endif
3247
3248 memcpy(pos, rfc1042_header, sizeof(rfc1042_header));
3249 pos += sizeof(rfc1042_header);
3250 WPA_PUT_BE16(pos, ETH_P_PAE);
3251 pos += 2;
3252 memcpy(pos, data, data_len);
3253
3254 res = wpa_driver_nl80211_send_frame(drv, (u8 *) hdr, len, encrypt);
3255 if (res < 0) {
3256 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - "
3257 "failed: %d (%s)",
3258 (unsigned long) len, errno, strerror(errno));
3259 }
3260 free(hdr);
3261
3262 return res;
3263}
3264
a8d6ffa4 3265
7e76ee9c
JM		 3266static u32 sta_flags_nl80211(int flags)
3267{
3268 u32 f = 0;
3269
3270 if (flags & WLAN_STA_AUTHORIZED)
3271 f |= BIT(NL80211_STA_FLAG_AUTHORIZED);
3272 if (flags & WLAN_STA_WMM)
3273 f |= BIT(NL80211_STA_FLAG_WME);
3274 if (flags & WLAN_STA_SHORT_PREAMBLE)
3275 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
3276 if (flags & WLAN_STA_MFP)
3277 f |= BIT(NL80211_STA_FLAG_MFP);
3278
3279 return f;
3280}
3281
3282
a8d6ffa4
JM		 3283static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr,
3284 int total_flags, int flags_or,
3285 int flags_and)
3286{
3287 struct wpa_driver_nl80211_data *drv = priv;
3288 struct nl_msg *msg, *flags = NULL;
7e76ee9c 3289 struct nl80211_sta_flag_update upd;
a8d6ffa4
JM		 3290
3291 msg = nlmsg_alloc();
3292 if (!msg)
3293 return -ENOMEM;
3294
3295 flags = nlmsg_alloc();
3296 if (!flags) {
3297 nlmsg_free(msg);
3298 return -ENOMEM;
3299 }
3300
3301 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3302 0, NL80211_CMD_SET_STATION, 0);
3303
3304 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
3305 if_nametoindex(drv->ifname));
3306 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
3307
7e76ee9c
JM		 3308 /*
3309 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This
3310 * can be removed eventually.
3311 */
a8d6ffa4
JM		 3312 if (total_flags & WLAN_STA_AUTHORIZED)
3313 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_AUTHORIZED);
3314
3315 if (total_flags & WLAN_STA_WMM)
3316 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_WME);
3317
3318 if (total_flags & WLAN_STA_SHORT_PREAMBLE)
3319 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_SHORT_PREAMBLE);
3320
3321 if (total_flags & WLAN_STA_MFP)
3322 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_MFP);
3323
3324 if (nla_put_nested(msg, NL80211_ATTR_STA_FLAGS, flags))
3325 goto nla_put_failure;
3326
7e76ee9c
JM		 3327 os_memset(&upd, 0, sizeof(upd));
3328 upd.mask = sta_flags_nl80211(flags_or | ~flags_and);
3329 upd.set = sta_flags_nl80211(flags_or);
3330 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
3331
a8d6ffa4
JM		 3332 nlmsg_free(flags);
3333
3334 return send_and_recv_msgs(drv, msg, NULL, NULL);
3335 nla_put_failure:
3336 nlmsg_free(flags);
3337 return -ENOBUFS;
3338}
3339
2135f224
JM		 3340#endif /* CONFIG_AP || HOSTAPD */
3341
3342#ifdef CONFIG_AP
0915d02c 3343
1581b38b
JM		 3344static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv,
3345 struct wpa_driver_associate_params *params)
3346{
3347 if (wpa_driver_nl80211_set_mode(drv, params->mode) ||
f019981a 3348 wpa_driver_nl80211_set_freq(drv, params->freq, 0, 0)) {
460456f8 3349 nl80211_remove_monitor_interface(drv);
1581b38b 3350 return -1;
0915d02c 3351 }
1581b38b
JM		 3352
3353 /* TODO: setup monitor interface (and add code somewhere to remove this
3354 * when AP mode is stopped; associate with mode != 2 or drv_deinit) */
1581b38b
JM		 3355
3356 return 0;
3357}
3358#endif /* CONFIG_AP */
3359
3360
c811d5bc 3361#ifndef HOSTAPD
cfaab580
ZY		 3362static int wpa_driver_nl80211_connect(
3363 struct wpa_driver_nl80211_data *drv,
3364 struct wpa_driver_associate_params *params)
3365{
3366 struct nl_msg *msg;
3367 enum nl80211_auth_type type;
3368 int ret = 0;
3369
3370 msg = nlmsg_alloc();
3371 if (!msg)
3372 return -1;
3373
3374 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex);
3375 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
3376 NL80211_CMD_CONNECT, 0);
3377
3378 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3379 if (params->bssid) {
3380 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
3381 MAC2STR(params->bssid));
3382 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
3383 }
3384 if (params->freq) {
3385 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
3386 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
3387 }
3388 if (params->ssid) {
3389 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
3390 params->ssid, params->ssid_len);
3391 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
3392 params->ssid);
3393 if (params->ssid_len > sizeof(drv->ssid))
3394 goto nla_put_failure;
3395 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
3396 drv->ssid_len = params->ssid_len;
3397 }
3398 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
3399 if (params->wpa_ie)
3400 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
3401 params->wpa_ie);
3402
3403 if (params->auth_alg & AUTH_ALG_OPEN_SYSTEM)
3404 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
3405 else if (params->auth_alg & AUTH_ALG_SHARED_KEY)
3406 type = NL80211_AUTHTYPE_SHARED_KEY;
3407 else if (params->auth_alg & AUTH_ALG_LEAP)
3408 type = NL80211_AUTHTYPE_NETWORK_EAP;
3409 else if (params->auth_alg & AUTH_ALG_FT)
3410 type = NL80211_AUTHTYPE_FT;
3411 else
3412 goto nla_put_failure;
3413
3414 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
3415 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
3416
3417 if (params->wpa_ie && params->wpa_ie_len) {
3418 enum nl80211_wpa_versions ver;
3419
3420 if (params->wpa_ie[0] == WLAN_EID_RSN)
3421 ver = NL80211_WPA_VERSION_2;
3422 else
3423 ver = NL80211_WPA_VERSION_1;
3424
3425 wpa_printf(MSG_DEBUG, " * WPA Version %d", ver);
3426 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
3427 }
3428
3429 if (params->pairwise_suite != CIPHER_NONE) {
3430 int cipher = IW_AUTH_CIPHER_NONE;
3431
3432 switch (params->pairwise_suite) {
3433 case CIPHER_WEP40:
3434 cipher = WLAN_CIPHER_SUITE_WEP40;
3435 break;
3436 case CIPHER_WEP104:
3437 cipher = WLAN_CIPHER_SUITE_WEP104;
3438 break;
3439 case CIPHER_CCMP:
3440 cipher = WLAN_CIPHER_SUITE_CCMP;
3441 break;
3442 case CIPHER_TKIP:
3443 default:
3444 cipher = WLAN_CIPHER_SUITE_TKIP;
3445 break;
3446 }
3447 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
3448 }
3449
3450 if (params->group_suite != CIPHER_NONE) {
3451 int cipher = IW_AUTH_CIPHER_NONE;
3452
3453 switch (params->group_suite) {
3454 case CIPHER_WEP40:
3455 cipher = WLAN_CIPHER_SUITE_WEP40;
3456 break;
3457 case CIPHER_WEP104:
3458 cipher = WLAN_CIPHER_SUITE_WEP104;
3459 break;
3460 case CIPHER_CCMP:
3461 cipher = WLAN_CIPHER_SUITE_CCMP;
3462 break;
3463 case CIPHER_TKIP:
3464 default:
3465 cipher = WLAN_CIPHER_SUITE_TKIP;
3466 break;
3467 }
3468 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
3469 }
3470
3471 if (params->key_mgmt_suite == KEY_MGMT_802_1X ||
3472 params->key_mgmt_suite == KEY_MGMT_PSK) {
3473 int mgmt = WLAN_AKM_SUITE_PSK;
3474
3475 switch (params->key_mgmt_suite) {
3476 case KEY_MGMT_802_1X:
3477 mgmt = WLAN_AKM_SUITE_8021X;
3478 break;
3479 case KEY_MGMT_PSK:
3480 default:
3481 mgmt = WLAN_AKM_SUITE_PSK;
3482 break;
3483 }
3484 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt);
3485 }
3486
3487 ret = nl80211_set_conn_keys(params, msg);
3488 if (ret)
3489 goto nla_put_failure;
3490
3491 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3492 msg = NULL;
3493 if (ret) {
3494 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d "
3495 "(%s)", ret, strerror(-ret));
3496 goto nla_put_failure;
3497 }
3498 ret = 0;
3499 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully");
3500
3501nla_put_failure:
3502 nlmsg_free(msg);
3503 return ret;
3504
3505}
3506
3507
c2a04078
JM		 3508static int wpa_driver_nl80211_associate(
3509 void *priv, struct wpa_driver_associate_params *params)
3510{
3511 struct wpa_driver_nl80211_data *drv = priv;
3512 int ret = -1;
3513 struct nl_msg *msg;
3514
1581b38b
JM		 3515#ifdef CONFIG_AP
3516 if (params->mode == 2)
3517 return wpa_driver_nl80211_ap(drv, params);
3518#endif /* CONFIG_AP */
3519
cfaab580
ZY		 3520 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
3521 return wpa_driver_nl80211_connect(drv, params);
3522
37b7d082 3523#ifndef NO_WEXT
36b15723
JM		 3524 wpa_driver_nl80211_set_auth_param(drv, IW_AUTH_DROP_UNENCRYPTED,
3525 params->drop_unencrypted);
37b7d082 3526#endif /* NO_WEXT */
36b15723 3527
c2a04078
JM		 3528 drv->associated = 0;
3529
3530 msg = nlmsg_alloc();
3531 if (!msg)
3532 return -1;
3533
3534 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)",
3535 drv->ifindex);
3536 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
3537 NL80211_CMD_ASSOCIATE, 0);
3538
3539 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3540 if (params->bssid) {
3541 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
3542 MAC2STR(params->bssid));
3543 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
3544 }
3545 if (params->freq) {
3546 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
3547 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
3548 }
3549 if (params->ssid) {
3550 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
3551 params->ssid, params->ssid_len);
3552 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
3553 params->ssid);
fd05d64e
JM		 3554 if (params->ssid_len > sizeof(drv->ssid))
3555 goto nla_put_failure;
3556 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
3557 drv->ssid_len = params->ssid_len;
c2a04078
JM		 3558 }
3559 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
3560 if (params->wpa_ie)
3561 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
3562 params->wpa_ie);
3563
e572fa33
JM		 3564#ifdef CONFIG_IEEE80211W
3565 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED)
3566 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED);
3567#endif /* CONFIG_IEEE80211W */
3568
01652550
JM		 3569 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
3570
c2a04078
JM		 3571 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3572 msg = NULL;
3573 if (ret) {
3574 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
3575 "(%s)", ret, strerror(-ret));
3576 goto nla_put_failure;
3577 }
3578 ret = 0;
3579 wpa_printf(MSG_DEBUG, "nl80211: Association request send "
3580 "successfully");
3581
3582nla_put_failure:
3583 nlmsg_free(msg);
3584 return ret;
3585}
c811d5bc 3586#endif /* HOSTAPD */
3f5285e8
JM		 3587
3588
ad1e68e6
JM		 3589static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv,
3590 int ifindex, int mode)
3f5285e8 3591{
3f5285e8 3592 struct nl_msg *msg;
ad1e68e6
JM		 3593 int ret = -ENOBUFS;
3594
3595 msg = nlmsg_alloc();
3596 if (!msg)
3597 return -ENOMEM;
3598
3599 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3600 0, NL80211_CMD_SET_INTERFACE, 0);
3601 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
3602 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode);
3603
3604 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3605 if (!ret)
3606 return 0;
3607nla_put_failure:
3608 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:"
3609 " %d (%s)", ifindex, mode, ret, strerror(-ret));
3610 return ret;
3611}
3612
3613
3614static int wpa_driver_nl80211_set_mode(void *priv, int mode)
3615{
3616 struct wpa_driver_nl80211_data *drv = priv;
3617 int ret = -1;
1581b38b
JM		 3618 int nlmode;
3619
3620 switch (mode) {
3621 case 0:
3622 nlmode = NL80211_IFTYPE_STATION;
3623 break;
3624 case 1:
3625 nlmode = NL80211_IFTYPE_ADHOC;
3626 break;
3627 case 2:
3628 nlmode = NL80211_IFTYPE_AP;
3629 break;
3630 default:
3631 return -1;
3632 }
3f5285e8 3633
ad1e68e6
JM		 3634 if (nl80211_set_mode(drv, drv->ifindex, nlmode) == 0) {
3635 drv->nlmode = nlmode;
460456f8
JM		 3636 ret = 0;
3637 goto done;
ad1e68e6 3638 }
3f5285e8 3639
460456f8
JM		 3640 if (nlmode == drv->nlmode) {
3641 ret = 0;
3642 goto done; /* Already in the requested mode */
3643 }
3f5285e8 3644
3f5285e8
JM		 3645 /* mac80211 doesn't allow mode changes while the device is up, so
3646 * take the device down, try to set the mode again, and bring the
3647 * device back up.
3648 */
2135f224 3649 if (hostapd_set_iface_flags(drv, drv->ifname, 0) == 0) {
3f5285e8 3650 /* Try to set the mode again while the interface is down */
ad1e68e6 3651 ret = nl80211_set_mode(drv, drv->ifindex, nlmode);
2135f224
JM		 3652 if (hostapd_set_iface_flags(drv, drv->ifname, 1))
3653 ret = -1;
3f5285e8
JM		 3654 }
3655
ad1e68e6
JM		 3656 if (!ret)
3657 drv->nlmode = nlmode;
3658
460456f8
JM		 3659done:
3660#if defined(CONFIG_AP) || defined(HOSTAPD)
3661 if (!ret && nlmode == NL80211_IFTYPE_AP) {
3662 /* Setup additional AP mode functionality if needed */
3663 if (drv->monitor_ifidx < 0 &&
3664 nl80211_create_monitor_interface(drv))
3665 return -1;
3666 } else if (!ret && nlmode != NL80211_IFTYPE_AP) {
3667 /* Remove additional AP mode functionality */
3668 nl80211_remove_monitor_interface(drv);
3669 }
3670#endif /* CONFIG_AP || HOSTAPD */
3671
3f5285e8
JM		 3672 return ret;
3673}
3674
3675
c811d5bc
JM		 3676#ifndef HOSTAPD
3677
3f5285e8
JM		 3678static int wpa_driver_nl80211_get_capa(void *priv,
3679 struct wpa_driver_capa *capa)
3680{
3681 struct wpa_driver_nl80211_data *drv = priv;
3682 if (!drv->has_capability)
3683 return -1;
3684 os_memcpy(capa, &drv->capa, sizeof(*capa));
3685 return 0;
3686}
3687
3688
3689static int wpa_driver_nl80211_set_operstate(void *priv, int state)
3690{
3691 struct wpa_driver_nl80211_data *drv = priv;
3692
3693 wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)",
3694 __func__, drv->operstate, state, state ? "UP" : "DORMANT");
3695 drv->operstate = state;
3696 return wpa_driver_nl80211_send_oper_ifla(
3697 drv, -1, state ? IF_OPER_UP : IF_OPER_DORMANT);
3698}
3699
01652550
JM		 3700
3701static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized)
3702{
3703 struct wpa_driver_nl80211_data *drv = priv;
3704 struct nl_msg *msg;
3705 struct nl80211_sta_flag_update upd;
3706
3707 msg = nlmsg_alloc();
3708 if (!msg)
3709 return -ENOMEM;
3710
3711 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3712 0, NL80211_CMD_SET_STATION, 0);
3713
3714 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
3715 if_nametoindex(drv->ifname));
3716 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
3717
3718 os_memset(&upd, 0, sizeof(upd));
3719 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED);
3720 if (authorized)
3721 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED);
3722 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
3723
3724 return send_and_recv_msgs(drv, msg, NULL, NULL);
3725 nla_put_failure:
3726 return -ENOBUFS;
3727}
3728
c811d5bc
JM		 3729#endif /* HOSTAPD */
3730
3f5285e8 3731
c5121837
JM		 3732#ifdef HOSTAPD
3733
c5121837 3734static struct i802_bss * get_bss(struct wpa_driver_nl80211_data *drv,
b4fd6fab 3735 int ifindex)
c5121837
JM		 3736{
3737 struct i802_bss *bss = &drv->bss;
3738 while (bss) {
b4fd6fab 3739 if (ifindex == bss->ifindex)
c5121837
JM		 3740 return bss;
3741 bss = bss->next;
3742 }
b4fd6fab 3743 wpa_printf(MSG_DEBUG, "nl80211: get_bss(%d) failed", ifindex);
c5121837
JM		 3744 return NULL;
3745}
3746
3747
3748static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
3749{
3750 int i;
3751 int *old;
3752
3753 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d",
3754 ifidx);
3755 for (i = 0; i < drv->num_if_indices; i++) {
3756 if (drv->if_indices[i] == 0) {
3757 drv->if_indices[i] = ifidx;
3758 return;
3759 }
3760 }
3761
3762 if (drv->if_indices != drv->default_if_indices)
3763 old = drv->if_indices;
3764 else
3765 old = NULL;
3766
3767 drv->if_indices = realloc(old,
3768 sizeof(int) * (drv->num_if_indices + 1));
3769 if (!drv->if_indices) {
3770 if (!old)
3771 drv->if_indices = drv->default_if_indices;
3772 else
3773 drv->if_indices = old;
3774 wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
3775 "interfaces");
3776 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
3777 return;
3778 }
3779 drv->if_indices[drv->num_if_indices] = ifidx;
3780 drv->num_if_indices++;
3781}
3782
3783
3784static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
3785{
3786 int i;
3787
3788 for (i = 0; i < drv->num_if_indices; i++) {
3789 if (drv->if_indices[i] == ifidx) {
3790 drv->if_indices[i] = 0;
3791 break;
3792 }
3793 }
3794}
3795
3796
3797static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
3798{
3799 int i;
3800
3801 for (i = 0; i < drv->num_if_indices; i++)
3802 if (drv->if_indices[i] == ifidx)
3803 return 1;
3804
3805 return 0;
3806}
3807
3808
c5121837
JM		 3809static int i802_set_key(const char *iface, void *priv, wpa_alg alg,
3810 const u8 *addr, int key_idx, int set_tx, const u8 *seq,
3811 size_t seq_len, const u8 *key, size_t key_len)
3812{
3813 struct wpa_driver_nl80211_data *drv = priv;
1ad1cdc2
JM		 3814 return nl_set_encr(if_nametoindex(iface), drv, alg, addr, key_idx,
3815 set_tx, seq, seq_len, key, key_len);
c5121837
JM		 3816}
3817
3818
3819static inline int min_int(int a, int b)
3820{
3821 if (a < b)
3822 return a;
3823 return b;
3824}
3825
3826
3827static int get_key_handler(struct nl_msg *msg, void *arg)
3828{
3829 struct nlattr *tb[NL80211_ATTR_MAX + 1];
3830 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3831
3832 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3833 genlmsg_attrlen(gnlh, 0), NULL);
3834
3835 /*
3836 * TODO: validate the key index and mac address!
3837 * Otherwise, there's a race condition as soon as
3838 * the kernel starts sending key notifications.
3839 */
3840
3841 if (tb[NL80211_ATTR_KEY_SEQ])
3842 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]),
3843 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6));
3844 return NL_SKIP;
3845}
3846
3847
3848static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
3849 int idx, u8 *seq)
3850{
3851 struct wpa_driver_nl80211_data *drv = priv;
3852 struct nl_msg *msg;
3853
3854 msg = nlmsg_alloc();
3855 if (!msg)
3856 return -ENOMEM;
3857
3858 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3859 0, NL80211_CMD_GET_KEY, 0);
3860
3861 if (addr)
3862 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
3863 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
3864 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
3865
3866 memset(seq, 0, 6);
3867
3868 return send_and_recv_msgs(drv, msg, get_key_handler, seq);
3869 nla_put_failure:
3870 return -ENOBUFS;
3871}
3872
3873
3874static int i802_set_rate_sets(void *priv, int *supp_rates, int *basic_rates,
3875 int mode)
3876{
3877 struct wpa_driver_nl80211_data *drv = priv;
3878 struct nl_msg *msg;
3879 u8 rates[NL80211_MAX_SUPP_RATES];
3880 u8 rates_len = 0;
3881 int i;
3882
3883 msg = nlmsg_alloc();
3884 if (!msg)
3885 return -ENOMEM;
3886
3887 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
3888 NL80211_CMD_SET_BSS, 0);
3889
3890 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; i++)
3891 rates[rates_len++] = basic_rates[i] / 5;
3892
3893 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates);
3894
3895 /* TODO: multi-BSS support */
3896 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->ifname));
3897
3898 return send_and_recv_msgs(drv, msg, NULL, NULL);
3899 nla_put_failure:
3900 return -ENOBUFS;
3901}
3902
3903
c5121837
JM		 3904/* Set kernel driver on given frequency (MHz) */
3905static int i802_set_freq(void *priv, struct hostapd_freq_params *freq)
3906{
3907 struct wpa_driver_nl80211_data *drv = priv;
f019981a
JM		 3908 return wpa_driver_nl80211_set_freq(drv, freq->freq, freq->ht_enabled,
3909 freq->sec_channel_offset);
c5121837
JM		 3910}
3911
3912
3913static int i802_set_rts(void *priv, int rts)
3914{
3915 struct wpa_driver_nl80211_data *drv = priv;
ad649451
JM		 3916 struct nl_msg *msg;
3917 int ret = -ENOBUFS;
3918 u32 val;
c5121837 3919
ad649451
JM		 3920 msg = nlmsg_alloc();
3921 if (!msg)
3922 return -ENOMEM;
c5121837 3923
ad649451
JM		 3924 if (rts >= 2347)
3925 val = (u32) -1;
3926 else
3927 val = rts;
c5121837 3928
ad649451
JM		 3929 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3930 0, NL80211_CMD_SET_WIPHY, 0);
3931 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3932 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val);
3933
3934 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3935 if (!ret)
3936 return 0;
3937nla_put_failure:
3938 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: "
3939 "%d (%s)", rts, ret, strerror(-ret));
3940 return ret;
c5121837
JM		 3941}
3942
3943
3944static int i802_set_frag(void *priv, int frag)
3945{
3946 struct wpa_driver_nl80211_data *drv = priv;
ad649451
JM		 3947 struct nl_msg *msg;
3948 int ret = -ENOBUFS;
3949 u32 val;
c5121837 3950
ad649451
JM		 3951 msg = nlmsg_alloc();
3952 if (!msg)
3953 return -ENOMEM;
c5121837 3954
ad649451
JM		 3955 if (frag >= 2346)
3956 val = (u32) -1;
3957 else
3958 val = frag;
c5121837 3959
ad649451
JM		 3960 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3961 0, NL80211_CMD_SET_WIPHY, 0);
3962 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3963 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val);
3964
3965 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3966 if (!ret)
3967 return 0;
3968nla_put_failure:
3969 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold "
3970 "%d: %d (%s)", frag, ret, strerror(-ret));
3971 return ret;
c5121837
JM		 3972}
3973
3974
c5121837
JM		 3975static int i802_flush(void *priv)
3976{
3977 struct wpa_driver_nl80211_data *drv = priv;
3978 struct nl_msg *msg;
3979
3980 msg = nlmsg_alloc();
3981 if (!msg)
3982 return -1;
3983
3984 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3985 0, NL80211_CMD_DEL_STATION, 0);
3986
3987 /*
3988 * XXX: FIX! this needs to flush all VLANs too
3989 */
3990 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
3991 if_nametoindex(drv->ifname));
3992
3993 return send_and_recv_msgs(drv, msg, NULL, NULL);
3994 nla_put_failure:
3995 return -ENOBUFS;
3996}
3997
3998
3999static int get_sta_handler(struct nl_msg *msg, void *arg)
4000{
4001 struct nlattr *tb[NL80211_ATTR_MAX + 1];
4002 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
4003 struct hostap_sta_driver_data *data = arg;
4004 struct nlattr *stats[NL80211_STA_INFO_MAX + 1];
4005 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
4006 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
4007 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
4008 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
4009 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
4010 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
4011 };
4012
4013 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
4014 genlmsg_attrlen(gnlh, 0), NULL);
4015
4016 /*
4017 * TODO: validate the interface and mac address!
4018 * Otherwise, there's a race condition as soon as
4019 * the kernel starts sending station notifications.
4020 */
4021
4022 if (!tb[NL80211_ATTR_STA_INFO]) {
4023 wpa_printf(MSG_DEBUG, "sta stats missing!");
4024 return NL_SKIP;
4025 }
4026 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX,
4027 tb[NL80211_ATTR_STA_INFO],
4028 stats_policy)) {
4029 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!");
4030 return NL_SKIP;
4031 }
4032
4033 if (stats[NL80211_STA_INFO_INACTIVE_TIME])
4034 data->inactive_msec =
4035 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]);
4036 if (stats[NL80211_STA_INFO_RX_BYTES])
4037 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]);
4038 if (stats[NL80211_STA_INFO_TX_BYTES])
4039 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]);
4040 if (stats[NL80211_STA_INFO_RX_PACKETS])
4041 data->rx_packets =
4042 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]);
4043 if (stats[NL80211_STA_INFO_TX_PACKETS])
4044 data->tx_packets =
4045 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]);
4046
4047 return NL_SKIP;
4048}
4049
4050static int i802_read_sta_data(void *priv, struct hostap_sta_driver_data *data,
4051 const u8 *addr)
4052{
4053 struct wpa_driver_nl80211_data *drv = priv;
4054 struct nl_msg *msg;
4055
4056 os_memset(data, 0, sizeof(*data));
4057 msg = nlmsg_alloc();
4058 if (!msg)
4059 return -ENOMEM;
4060
4061 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4062 0, NL80211_CMD_GET_STATION, 0);
4063
4064 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
4065 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->ifname));
4066
4067 return send_and_recv_msgs(drv, msg, get_sta_handler, data);
4068 nla_put_failure:
4069 return -ENOBUFS;
4070}
4071
4072
c5121837
JM		 4073static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
4074 int cw_min, int cw_max, int burst_time)
4075{
4076 struct wpa_driver_nl80211_data *drv = priv;
4077 struct nl_msg *msg;
4078 struct nlattr *txq, *params;
4079
4080 msg = nlmsg_alloc();
4081 if (!msg)
4082 return -1;
4083
4084 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4085 0, NL80211_CMD_SET_WIPHY, 0);
4086
4087 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->ifname));
4088
4089 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS);
4090 if (!txq)
4091 goto nla_put_failure;
4092
4093 /* We are only sending parameters for a single TXQ at a time */
4094 params = nla_nest_start(msg, 1);
4095 if (!params)
4096 goto nla_put_failure;
4097
4098 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, queue);
4099 /* Burst time is configured in units of 0.1 msec and TXOP parameter in
4100 * 32 usec, so need to convert the value here. */
4101 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32);
4102 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min);
4103 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max);
4104 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs);
4105
4106 nla_nest_end(msg, params);
4107
4108 nla_nest_end(msg, txq);
4109
4110 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
4111 return 0;
4112 nla_put_failure:
4113 return -1;
4114}
4115
4116
c5121837
JM		 4117static int i802_bss_add(void *priv, const char *ifname, const u8 *bssid)
4118{
4119 struct wpa_driver_nl80211_data *drv = priv;
4120 int ifidx;
4121 struct i802_bss *bss;
4122
4123 bss = os_zalloc(sizeof(*bss));
4124 if (bss == NULL)
4125 return -1;
c5121837
JM		 4126
4127 ifidx = nl80211_create_iface(priv, ifname, NL80211_IFTYPE_AP, bssid);
4128 if (ifidx < 0) {
4129 os_free(bss);
4130 return -1;
4131 }
6d550fbe 4132 bss->ifindex = ifidx;
c5121837
JM		 4133 if (hostapd_set_iface_flags(priv, ifname, 1)) {
4134 nl80211_remove_iface(priv, ifidx);
4135 os_free(bss);
4136 return -1;
4137 }
4138 bss->next = drv->bss.next;
4139 drv->bss.next = bss;
4140 return 0;
4141}
4142
4143
4144static int i802_bss_remove(void *priv, const char *ifname)
4145{
4146 struct wpa_driver_nl80211_data *drv = priv;
4147 struct i802_bss *bss, *prev;
b4fd6fab
JM		 4148 int ifindex = if_nametoindex(ifname);
4149 nl80211_remove_iface(priv, ifindex);
c5121837
JM		 4150 prev = &drv->bss;
4151 bss = drv->bss.next;
4152 while (bss) {
b4fd6fab 4153 if (ifindex == bss->ifindex) {
c5121837
JM		 4154 prev->next = bss->next;
4155 os_free(bss);
4156 break;
4157 }
4158 prev = bss;
4159 bss = bss->next;
4160 }
4161 return 0;
4162}
4163
4164
4165static int i802_set_beacon(const char *iface, void *priv,
4166 const u8 *head, size_t head_len,
4167 const u8 *tail, size_t tail_len, int dtim_period)
4168{
b4fd6fab
JM		 4169 return wpa_driver_nl80211_set_beacon_iface(if_nametoindex(iface), priv,
4170 head, head_len,
4171 tail, tail_len,
4172 dtim_period);
c5121837
JM		 4173}
4174
4175
c5121837
JM		 4176static int i802_set_bss(void *priv, int cts, int preamble, int slot)
4177{
4178 struct wpa_driver_nl80211_data *drv = priv;
4179 struct nl_msg *msg;
4180
4181 msg = nlmsg_alloc();
4182 if (!msg)
4183 return -ENOMEM;
4184
4185 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
4186 NL80211_CMD_SET_BSS, 0);
4187
4188 if (cts >= 0)
4189 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts);
4190 if (preamble >= 0)
4191 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble);
4192 if (slot >= 0)
4193 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot);
4194
4195 /* TODO: multi-BSS support */
4196 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->ifname));
4197
4198 return send_and_recv_msgs(drv, msg, NULL, NULL);
4199 nla_put_failure:
4200 return -ENOBUFS;
4201}
4202
4203
4204static int i802_set_cts_protect(void *priv, int value)
4205{
4206 return i802_set_bss(priv, value, -1, -1);
4207}
4208
4209
4210static int i802_set_preamble(void *priv, int value)
4211{
4212 return i802_set_bss(priv, -1, value, -1);
4213}
4214
4215
4216static int i802_set_short_slot_time(void *priv, int value)
4217{
4218 return i802_set_bss(priv, -1, -1, value);
4219}
4220
4221
4222static enum nl80211_iftype i802_if_type(enum hostapd_driver_if_type type)
4223{
4224 switch (type) {
4225 case HOSTAPD_IF_VLAN:
4226 return NL80211_IFTYPE_AP_VLAN;
c5121837
JM		 4227 }
4228 return -1;
4229}
4230
4231
4232static int i802_if_add(const char *iface, void *priv,
4233 enum hostapd_driver_if_type type, char *ifname,
4234 const u8 *addr)
4235{
4236 if (nl80211_create_iface(priv, ifname, i802_if_type(type), addr) < 0)
4237 return -1;
4238 return 0;
4239}
4240
4241
4242static int i802_if_update(void *priv, enum hostapd_driver_if_type type,
4243 char *ifname, const u8 *addr)
4244{
4245 /* unused at the moment */
4246 return -1;
4247}
4248
4249
4250static int i802_if_remove(void *priv, enum hostapd_driver_if_type type,
4251 const char *ifname, const u8 *addr)
4252{
4253 nl80211_remove_iface(priv, if_nametoindex(ifname));
4254 return 0;
4255}
4256
4257
c5121837
JM		 4258static int i802_set_sta_vlan(void *priv, const u8 *addr,
4259 const char *ifname, int vlan_id)
4260{
4261 struct wpa_driver_nl80211_data *drv = priv;
4262 struct nl_msg *msg;
4263
4264 msg = nlmsg_alloc();
4265 if (!msg)
4266 return -ENOMEM;
4267
4268 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4269 0, NL80211_CMD_SET_STATION, 0);
4270
4271 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
4272 if_nametoindex(drv->ifname));
4273 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
4274 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
4275 if_nametoindex(ifname));
4276
4277 return send_and_recv_msgs(drv, msg, NULL, NULL);
4278 nla_put_failure:
4279 return -ENOBUFS;
4280}
4281
4282
c5121837
JM		 4283static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
4284{
4285 struct wpa_driver_nl80211_data *drv = eloop_ctx;
4286 struct sockaddr_ll lladdr;
4287 unsigned char buf[3000];
4288 int len;
4289 socklen_t fromlen = sizeof(lladdr);
4290
4291 len = recvfrom(sock, buf, sizeof(buf), 0,
4292 (struct sockaddr *)&lladdr, &fromlen);
4293 if (len < 0) {
4294 perror("recv");
4295 return;
4296 }
4297
4298 if (have_ifidx(drv, lladdr.sll_ifindex)) {
4b9841d3
JM		 4299 void *ctx;
4300 ctx = hostapd_sta_get_bss(drv->ctx, lladdr.sll_addr);
4301 if (!ctx)
c5121837 4302 return;
4b9841d3 4303 hostapd_eapol_receive(ctx, lladdr.sll_addr, buf, len);
c5121837
JM		 4304 }
4305}
4306
4307
c5121837
JM		 4308static int i802_get_inact_sec(void *priv, const u8 *addr)
4309{
4310 struct hostap_sta_driver_data data;
4311 int ret;
4312
4313 data.inactive_msec = (unsigned long) -1;
4314 ret = i802_read_sta_data(priv, &data, addr);
4315 if (ret || data.inactive_msec == (unsigned long) -1)
4316 return -1;
4317 return data.inactive_msec / 1000;
4318}
4319
4320
4321static int i802_sta_clear_stats(void *priv, const u8 *addr)
4322{
4323#if 0
4324 /* TODO */
4325#endif
4326 return 0;
4327}
4328
4329
731723a5
JM		 4330static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
4331 int reason)
c5121837
JM		 4332{
4333 struct wpa_driver_nl80211_data *drv = priv;
4334 struct ieee80211_mgmt mgmt;
4335
4336 memset(&mgmt, 0, sizeof(mgmt));
4337 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
4338 WLAN_FC_STYPE_DEAUTH);
4339 memcpy(mgmt.da, addr, ETH_ALEN);
731723a5
JM		 4340 memcpy(mgmt.sa, own_addr, ETH_ALEN);
4341 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
c5121837 4342 mgmt.u.deauth.reason_code = host_to_le16(reason);
9f324b61
JM		 4343 return wpa_driver_nl80211_send_mlme(drv, (u8 *) &mgmt,
4344 IEEE80211_HDRLEN +
4345 sizeof(mgmt.u.deauth));
c5121837
JM		 4346}
4347
4348
731723a5
JM		 4349static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
4350 int reason)
c5121837
JM		 4351{
4352 struct wpa_driver_nl80211_data *drv = priv;
4353 struct ieee80211_mgmt mgmt;
4354
4355 memset(&mgmt, 0, sizeof(mgmt));
4356 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
4357 WLAN_FC_STYPE_DISASSOC);
4358 memcpy(mgmt.da, addr, ETH_ALEN);
731723a5
JM		 4359 memcpy(mgmt.sa, own_addr, ETH_ALEN);
4360 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
c5121837 4361 mgmt.u.disassoc.reason_code = host_to_le16(reason);
9f324b61
JM		 4362 return wpa_driver_nl80211_send_mlme(drv, (u8 *) &mgmt,
4363 IEEE80211_HDRLEN +
4364 sizeof(mgmt.u.disassoc));
c5121837
JM		 4365}
4366
4367
92f475b4
JM		 4368static void *i802_init(struct hostapd_data *hapd,
4369 struct wpa_init_params *params)
c5121837
JM		 4370{
4371 struct wpa_driver_nl80211_data *drv;
4372 size_t i;
4373
bbaf0837
JM		 4374 drv = wpa_driver_nl80211_init(hapd, params->ifname);
4375 if (drv == NULL)
c5121837 4376 return NULL;
c5121837 4377
b4fd6fab 4378 drv->bss.ifindex = drv->ifindex;
c5121837
JM		 4379
4380 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
4381 drv->if_indices = drv->default_if_indices;
92f475b4
JM		 4382 for (i = 0; i < params->num_bridge; i++) {
4383 if (params->bridge[i])
4384 add_ifidx(drv, if_nametoindex(params->bridge[i]));
c5121837 4385 }
c5121837 4386
ad1e68e6
JM		 4387 /* start listening for EAPOL on the default AP interface */
4388 add_ifidx(drv, drv->ifindex);
4389
460456f8
JM		 4390 if (params->bssid) {
4391 if (hostapd_set_iface_flags(drv, drv->ifname, 0))
4392 goto failed;
ad1e68e6 4393
460456f8
JM		 4394 if (set_ifhwaddr(drv, drv->ifname, params->bssid))
4395 goto failed;
4396 }
ad1e68e6
JM		 4397
4398 if (nl80211_set_mode(drv, drv->ifindex, NL80211_IFTYPE_AP)) {
4399 wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s "
4400 "into AP mode", drv->ifname);
bbaf0837 4401 goto failed;
ad1e68e6
JM		 4402 }
4403
4404 if (hostapd_set_iface_flags(drv, drv->ifname, 1))
bbaf0837 4405 goto failed;
ad1e68e6
JM		 4406
4407 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE));
4408 if (drv->eapol_sock < 0) {
4409 perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)");
bbaf0837 4410 goto failed;
ad1e68e6
JM		 4411 }
4412
4413 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL))
4414 {
4415 printf("Could not register read socket for eapol\n");
c5121837 4416 goto failed;
ad1e68e6
JM		 4417 }
4418
412036f5 4419 if (get_ifhwaddr(drv, drv->ifname, params->own_addr))
bbaf0837 4420 goto failed;
c5121837 4421
c5121837
JM		 4422 return drv;
4423
4424failed:
460456f8 4425 nl80211_remove_monitor_interface(drv);
c5121837
JM		 4426 if (drv->ioctl_sock >= 0)
4427 close(drv->ioctl_sock);
c5121837
JM		 4428
4429 genl_family_put(drv->nl80211);
4430 nl_cache_free(drv->nl_cache);
4431 nl_handle_destroy(drv->nl_handle);
4432 nl_cb_put(drv->nl_cb);
4433
bbaf0837
JM		 4434 os_free(drv);
4435 return NULL;
4436}
c5121837 4437
c5121837 4438
bbaf0837
JM		 4439static void i802_deinit(void *priv)
4440{
4441 wpa_driver_nl80211_deinit(priv);
c5121837
JM		 4442}
4443
4444#endif /* HOSTAPD */
4445
4446
3f5285e8
JM		 4447const struct wpa_driver_ops wpa_driver_nl80211_ops = {
4448 .name = "nl80211",
4449 .desc = "Linux nl80211/cfg80211",
c811d5bc 4450#ifndef HOSTAPD
3f5285e8
JM		 4451 .get_bssid = wpa_driver_nl80211_get_bssid,
4452 .get_ssid = wpa_driver_nl80211_get_ssid,
3f5285e8 4453 .set_key = wpa_driver_nl80211_set_key,
c811d5bc 4454#endif /* HOSTAPD */
6a1063e0 4455 .scan2 = wpa_driver_nl80211_scan,
3f5285e8 4456 .get_scan_results2 = wpa_driver_nl80211_get_scan_results,
c811d5bc 4457#ifndef HOSTAPD
3f5285e8
JM		 4458 .deauthenticate = wpa_driver_nl80211_deauthenticate,
4459 .disassociate = wpa_driver_nl80211_disassociate,
c2a04078 4460 .authenticate = wpa_driver_nl80211_authenticate,
3f5285e8 4461 .associate = wpa_driver_nl80211_associate,
3f5285e8
JM		 4462 .init = wpa_driver_nl80211_init,
4463 .deinit = wpa_driver_nl80211_deinit,
3f5285e8
JM		 4464 .get_capa = wpa_driver_nl80211_get_capa,
4465 .set_operstate = wpa_driver_nl80211_set_operstate,
01652550 4466 .set_supp_port = wpa_driver_nl80211_set_supp_port,
c811d5bc 4467#endif /* HOSTAPD */
6d158490 4468 .set_country = wpa_driver_nl80211_set_country,
ad1e68e6 4469 .set_mode = wpa_driver_nl80211_set_mode,
d2440ba0
JM		 4470#ifdef CONFIG_AP
4471 .set_beacon = wpa_driver_nl80211_set_beacon,
d2440ba0 4472#endif /* CONFIG_AP */
c3965310 4473#if defined(CONFIG_AP) || defined(HOSTAPD)
071f8ac4 4474 .send_mlme = wpa_driver_nl80211_send_mlme,
b4fd6fab 4475 .set_beacon_int = wpa_driver_nl80211_set_beacon_int,
c3965310 4476 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data,
0f4e8b4f
JM		 4477 .sta_add = wpa_driver_nl80211_sta_add,
4478 .sta_remove = wpa_driver_nl80211_sta_remove,
db149ac9 4479 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol,
a8d6ffa4 4480 .sta_set_flags = wpa_driver_nl80211_sta_set_flags,
c3965310 4481#endif /* CONFIG_AP || HOSTAPD */
c5121837
JM		 4482#ifdef HOSTAPD
4483 .hapd_init = i802_init,
c5121837
JM		 4484 .hapd_deinit = i802_deinit,
4485 .hapd_set_key = i802_set_key,
4486 .get_seqnum = i802_get_seqnum,
4487 .flush = i802_flush,
4488 .read_sta_data = i802_read_sta_data,
c5121837
JM		 4489 .sta_deauth = i802_sta_deauth,
4490 .sta_disassoc = i802_sta_disassoc,
c5121837
JM		 4491 .get_inact_sec = i802_get_inact_sec,
4492 .sta_clear_stats = i802_sta_clear_stats,
4493 .set_freq = i802_set_freq,
4494 .set_rts = i802_set_rts,
4495 .set_frag = i802_set_frag,
c5121837
JM		 4496 .set_rate_sets = i802_set_rate_sets,
4497 .hapd_set_beacon = i802_set_beacon,
c5121837
JM		 4498 .set_cts_protect = i802_set_cts_protect,
4499 .set_preamble = i802_set_preamble,
4500 .set_short_slot_time = i802_set_short_slot_time,
4501 .set_tx_queue_params = i802_set_tx_queue_params,
4502 .bss_add = i802_bss_add,
4503 .bss_remove = i802_bss_remove,
4504 .if_add = i802_if_add,
4505 .if_update = i802_if_update,
4506 .if_remove = i802_if_remove,
c5121837 4507 .set_sta_vlan = i802_set_sta_vlan,
c5121837 4508#endif /* HOSTAPD */
3f5285e8 4509};
Unnamed repository; edit this file 'description' to name the repository.