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nl80211/SME: Use reassociation when roaming within the ESS
[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) {
0ae7b086
JM		 359 rta = aliasing_hide_typecast(
360 ((char *) &req + NLMSG_ALIGN(req.hdr.nlmsg_len)),
361 struct rtattr);
3f5285e8
JM		 362 rta->rta_type = IFLA_LINKMODE;
363 rta->rta_len = RTA_LENGTH(sizeof(char));
364 *((char *) RTA_DATA(rta)) = linkmode;
365 req.hdr.nlmsg_len = NLMSG_ALIGN(req.hdr.nlmsg_len) +
366 RTA_LENGTH(sizeof(char));
367 }
368 if (operstate != -1) {
369 rta = (struct rtattr *)
370 ((char *) &req + NLMSG_ALIGN(req.hdr.nlmsg_len));
371 rta->rta_type = IFLA_OPERSTATE;
372 rta->rta_len = RTA_LENGTH(sizeof(char));
373 *((char *) RTA_DATA(rta)) = operstate;
374 req.hdr.nlmsg_len = NLMSG_ALIGN(req.hdr.nlmsg_len) +
375 RTA_LENGTH(sizeof(char));
376 }
377
7da3abe7 378 wpa_printf(MSG_DEBUG, "nl80211: Operstate: linkmode=%d, operstate=%d",
3f5285e8
JM		 379 linkmode, operstate);
380
d8816397 381 ret = send(drv->link_event_sock, &req, req.hdr.nlmsg_len, 0);
3f5285e8 382 if (ret < 0) {
7da3abe7
JM		 383 wpa_printf(MSG_DEBUG, "nl80211: Sending operstate IFLA failed:"
384 " %s (assume operstate is not supported)",
3f5285e8
JM		 385 strerror(errno));
386 }
387
388 return ret < 0 ? -1 : 0;
389}
390
391
37b7d082 392#ifndef NO_WEXT
3f5285e8
JM		 393static int wpa_driver_nl80211_set_auth_param(
394 struct wpa_driver_nl80211_data *drv, int idx, u32 value)
395{
396 struct iwreq iwr;
397 int ret = 0;
398
399 os_memset(&iwr, 0, sizeof(iwr));
400 os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
401 iwr.u.param.flags = idx & IW_AUTH_INDEX;
402 iwr.u.param.value = value;
403
404 if (ioctl(drv->ioctl_sock, SIOCSIWAUTH, &iwr) < 0) {
405 if (errno != EOPNOTSUPP) {
406 wpa_printf(MSG_DEBUG, "WEXT: SIOCSIWAUTH(param %d "
407 "value 0x%x) failed: %s)",
408 idx, value, strerror(errno));
409 }
410 ret = errno == EOPNOTSUPP ? -2 : -1;
411 }
412
413 return ret;
414}
37b7d082 415#endif /* NO_WEXT */
3f5285e8
JM		 416
417
418static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid)
419{
420 struct wpa_driver_nl80211_data *drv = priv;
c2a04078
JM		 421 if (!drv->associated)
422 return -1;
423 os_memcpy(bssid, drv->bssid, ETH_ALEN);
424 return 0;
3f5285e8
JM		 425}
426
427
3f5285e8
JM		 428static int wpa_driver_nl80211_get_ssid(void *priv, u8 *ssid)
429{
430 struct wpa_driver_nl80211_data *drv = priv;
fd05d64e
JM		 431 if (!drv->associated)
432 return -1;
433 os_memcpy(ssid, drv->ssid, drv->ssid_len);
434 return drv->ssid_len;
3f5285e8
JM		 435}
436
437
7524cfb1
JM		 438static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv,
439 void *ctx, char *buf, size_t len,
440 int del)
3f5285e8
JM		 441{
442 union wpa_event_data event;
443
444 os_memset(&event, 0, sizeof(event));
445 if (len > sizeof(event.interface_status.ifname))
446 len = sizeof(event.interface_status.ifname) - 1;
447 os_memcpy(event.interface_status.ifname, buf, len);
448 event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED :
449 EVENT_INTERFACE_ADDED;
450
451 wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s",
452 del ? "DEL" : "NEW",
453 event.interface_status.ifname,
454 del ? "removed" : "added");
455
7524cfb1
JM		 456 if (os_strcmp(drv->ifname, event.interface_status.ifname) == 0) {
457 if (del)
458 drv->if_removed = 1;
459 else
460 drv->if_removed = 0;
461 }
462
3f5285e8
JM		 463 wpa_supplicant_event(ctx, EVENT_INTERFACE_STATUS, &event);
464}
465
466
7524cfb1
JM		 467static int wpa_driver_nl80211_own_ifname(struct wpa_driver_nl80211_data *drv,
468 struct nlmsghdr *h)
469{
470 struct ifinfomsg *ifi;
471 int attrlen, _nlmsg_len, rta_len;
472 struct rtattr *attr;
473
474 ifi = NLMSG_DATA(h);
475
476 _nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
477
478 attrlen = h->nlmsg_len - _nlmsg_len;
479 if (attrlen < 0)
480 return 0;
481
482 attr = (struct rtattr *) (((char *) ifi) + _nlmsg_len);
483
484 rta_len = RTA_ALIGN(sizeof(struct rtattr));
485 while (RTA_OK(attr, attrlen)) {
486 if (attr->rta_type == IFLA_IFNAME) {
487 if (os_strcmp(((char *) attr) + rta_len, drv->ifname)
488 == 0)
489 return 1;
490 else
491 break;
492 }
493 attr = RTA_NEXT(attr, attrlen);
494 }
495
496 return 0;
497}
498
499
500static int wpa_driver_nl80211_own_ifindex(struct wpa_driver_nl80211_data *drv,
501 int ifindex, struct nlmsghdr *h)
502{
503 if (drv->ifindex == ifindex)
504 return 1;
505
506 if (drv->if_removed && wpa_driver_nl80211_own_ifname(drv, h)) {
507 drv->ifindex = if_nametoindex(drv->ifname);
508 wpa_printf(MSG_DEBUG, "nl80211: Update ifindex for a removed "
509 "interface");
510 wpa_driver_nl80211_finish_drv_init(drv);
511 return 1;
512 }
513
514 return 0;
515}
516
517
3f5285e8
JM		 518static void wpa_driver_nl80211_event_rtm_newlink(struct wpa_driver_nl80211_data *drv,
519 void *ctx, struct nlmsghdr *h,
520 size_t len)
521{
522 struct ifinfomsg *ifi;
523 int attrlen, _nlmsg_len, rta_len;
524 struct rtattr * attr;
525
526 if (len < sizeof(*ifi))
527 return;
528
529 ifi = NLMSG_DATA(h);
530
7524cfb1 531 if (!wpa_driver_nl80211_own_ifindex(drv, ifi->ifi_index, h)) {
3f5285e8
JM		 532 wpa_printf(MSG_DEBUG, "Ignore event for foreign ifindex %d",
533 ifi->ifi_index);
534 return;
535 }
536
537 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x "
538 "(%s%s%s%s)",
539 drv->operstate, ifi->ifi_flags,
540 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "",
541 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "",
542 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "",
543 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : "");
544 /*
545 * Some drivers send the association event before the operup event--in
546 * this case, lifting operstate in wpa_driver_nl80211_set_operstate()
547 * fails. This will hit us when wpa_supplicant does not need to do
548 * IEEE 802.1X authentication
549 */
550 if (drv->operstate == 1 &&
551 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP &&
552 !(ifi->ifi_flags & IFF_RUNNING))
553 wpa_driver_nl80211_send_oper_ifla(drv, -1, IF_OPER_UP);
554
555 _nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
556
557 attrlen = h->nlmsg_len - _nlmsg_len;
558 if (attrlen < 0)
559 return;
560
561 attr = (struct rtattr *) (((char *) ifi) + _nlmsg_len);
562
563 rta_len = RTA_ALIGN(sizeof(struct rtattr));
564 while (RTA_OK(attr, attrlen)) {
d8816397 565 if (attr->rta_type == IFLA_IFNAME) {
7524cfb1
JM		 566 wpa_driver_nl80211_event_link(
567 drv, ctx,
568 ((char *) attr) + rta_len,
569 attr->rta_len - rta_len, 0);
3f5285e8
JM		 570 }
571 attr = RTA_NEXT(attr, attrlen);
572 }
573}
574
575
576static void wpa_driver_nl80211_event_rtm_dellink(struct wpa_driver_nl80211_data *drv,
577 void *ctx, struct nlmsghdr *h,
578 size_t len)
579{
580 struct ifinfomsg *ifi;
581 int attrlen, _nlmsg_len, rta_len;
582 struct rtattr * attr;
583
584 if (len < sizeof(*ifi))
585 return;
586
587 ifi = NLMSG_DATA(h);
588
589 _nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
590
591 attrlen = h->nlmsg_len - _nlmsg_len;
592 if (attrlen < 0)
593 return;
594
595 attr = (struct rtattr *) (((char *) ifi) + _nlmsg_len);
596
597 rta_len = RTA_ALIGN(sizeof(struct rtattr));
598 while (RTA_OK(attr, attrlen)) {
599 if (attr->rta_type == IFLA_IFNAME) {
7524cfb1
JM		 600 wpa_driver_nl80211_event_link(
601 drv, ctx,
602 ((char *) attr) + rta_len,
603 attr->rta_len - rta_len, 1);
3f5285e8
JM		 604 }
605 attr = RTA_NEXT(attr, attrlen);
606 }
607}
608
609
d8816397 610static void wpa_driver_nl80211_event_receive_link(int sock, void *eloop_ctx,
97865538 611 void *sock_ctx)
3f5285e8
JM		 612{
613 char buf[8192];
614 int left;
615 struct sockaddr_nl from;
616 socklen_t fromlen;
617 struct nlmsghdr *h;
618 int max_events = 10;
619
620try_again:
621 fromlen = sizeof(from);
622 left = recvfrom(sock, buf, sizeof(buf), MSG_DONTWAIT,
623 (struct sockaddr *) &from, &fromlen);
624 if (left < 0) {
625 if (errno != EINTR && errno != EAGAIN)
626 perror("recvfrom(netlink)");
627 return;
628 }
629
630 h = (struct nlmsghdr *) buf;
631 while (left >= (int) sizeof(*h)) {
632 int len, plen;
633
634 len = h->nlmsg_len;
635 plen = len - sizeof(*h);
636 if (len > left || plen < 0) {
637 wpa_printf(MSG_DEBUG, "Malformed netlink message: "
638 "len=%d left=%d plen=%d",
639 len, left, plen);
640 break;
641 }
642
643 switch (h->nlmsg_type) {
644 case RTM_NEWLINK:
645 wpa_driver_nl80211_event_rtm_newlink(eloop_ctx, sock_ctx,
646 h, plen);
647 break;
648 case RTM_DELLINK:
649 wpa_driver_nl80211_event_rtm_dellink(eloop_ctx, sock_ctx,
650 h, plen);
651 break;
652 }
653
654 len = NLMSG_ALIGN(len);
655 left -= len;
656 h = (struct nlmsghdr *) ((char *) h + len);
657 }
658
659 if (left > 0) {
660 wpa_printf(MSG_DEBUG, "%d extra bytes in the end of netlink "
661 "message", left);
662 }
663
664 if (--max_events > 0) {
665 /*
666 * Try to receive all events in one eloop call in order to
667 * limit race condition on cases where AssocInfo event, Assoc
668 * event, and EAPOL frames are received more or less at the
669 * same time. We want to process the event messages first
670 * before starting EAPOL processing.
671 */
672 goto try_again;
673 }
674}
675
676
c2a04078
JM		 677static void mlme_event_auth(struct wpa_driver_nl80211_data *drv,
678 const u8 *frame, size_t len)
679{
680 const struct ieee80211_mgmt *mgmt;
681 union wpa_event_data event;
682
683 mgmt = (const struct ieee80211_mgmt *) frame;
684 if (len < 24 + sizeof(mgmt->u.auth)) {
685 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
686 "frame");
687 return;
688 }
689
690 os_memset(&event, 0, sizeof(event));
691 os_memcpy(event.auth.peer, mgmt->sa, ETH_ALEN);
692 event.auth.auth_type = le_to_host16(mgmt->u.auth.auth_alg);
693 event.auth.status_code = le_to_host16(mgmt->u.auth.status_code);
694 if (len > 24 + sizeof(mgmt->u.auth)) {
695 event.auth.ies = mgmt->u.auth.variable;
696 event.auth.ies_len = len - 24 - sizeof(mgmt->u.auth);
697 }
698
699 wpa_supplicant_event(drv->ctx, EVENT_AUTH, &event);
700}
701
702
703static void mlme_event_assoc(struct wpa_driver_nl80211_data *drv,
704 const u8 *frame, size_t len)
705{
706 const struct ieee80211_mgmt *mgmt;
707 union wpa_event_data event;
708 u16 status;
709
710 mgmt = (const struct ieee80211_mgmt *) frame;
711 if (len < 24 + sizeof(mgmt->u.assoc_resp)) {
712 wpa_printf(MSG_DEBUG, "nl80211: Too short association event "
713 "frame");
714 return;
715 }
716
717 status = le_to_host16(mgmt->u.assoc_resp.status_code);
718 if (status != WLAN_STATUS_SUCCESS) {
efa46078
JM		 719 os_memset(&event, 0, sizeof(event));
720 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
721 event.assoc_reject.resp_ies =
722 (u8 *) mgmt->u.assoc_resp.variable;
723 event.assoc_reject.resp_ies_len =
724 len - 24 - sizeof(mgmt->u.assoc_resp);
725 }
726 event.assoc_reject.status_code = status;
727
728 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
c2a04078
JM		 729 return;
730 }
731
732 drv->associated = 1;
733 os_memcpy(drv->bssid, mgmt->sa, ETH_ALEN);
734
735 os_memset(&event, 0, sizeof(event));
736 if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
737 event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable;
738 event.assoc_info.resp_ies_len =
efa46078 739 len - 24 - sizeof(mgmt->u.assoc_resp);
c2a04078
JM		 740 }
741
742 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
743}
744
da72a1c1
ZY		 745static void mlme_event_connect(struct wpa_driver_nl80211_data *drv,
746 enum nl80211_commands cmd, struct nlattr *status,
747 struct nlattr *addr, struct nlattr *req_ie,
748 struct nlattr *resp_ie)
749{
750 union wpa_event_data event;
751
7da2c527
JM		 752 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
753 /*
754 * Avoid reporting two association events that would confuse
755 * the core code.
756 */
757 wpa_printf(MSG_DEBUG, "nl80211: Ignore connect event (cmd=%d) "
758 "when using userspace SME", cmd);
759 return;
760 }
761
da72a1c1
ZY		 762 os_memset(&event, 0, sizeof(event));
763 if (cmd == NL80211_CMD_CONNECT &&
764 nla_get_u16(status) != WLAN_STATUS_SUCCESS) {
765 if (resp_ie) {
766 event.assoc_reject.resp_ies = nla_data(resp_ie);
767 event.assoc_reject.resp_ies_len = nla_len(resp_ie);
768 }
769 event.assoc_reject.status_code = nla_get_u16(status);
770 wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
771 return;
772 }
773
774 drv->associated = 1;
775 if (addr)
776 os_memcpy(drv->bssid, nla_data(addr), ETH_ALEN);
777
778 if (req_ie) {
779 event.assoc_info.req_ies = nla_data(req_ie);
780 event.assoc_info.req_ies_len = nla_len(req_ie);
781 }
782 if (resp_ie) {
783 event.assoc_info.resp_ies = nla_data(resp_ie);
784 event.assoc_info.resp_ies_len = nla_len(resp_ie);
785 }
786
787 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
788}
c2a04078 789
da1fb17c
JM		 790static void mlme_timeout_event(struct wpa_driver_nl80211_data *drv,
791 enum nl80211_commands cmd, struct nlattr *addr)
792{
793 union wpa_event_data event;
794 enum wpa_event_type ev;
795
796 if (nla_len(addr) != ETH_ALEN)
797 return;
798
799 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d; timeout with " MACSTR,
800 cmd, MAC2STR((u8 *) nla_data(addr)));
801
802 if (cmd == NL80211_CMD_AUTHENTICATE)
803 ev = EVENT_AUTH_TIMED_OUT;
804 else if (cmd == NL80211_CMD_ASSOCIATE)
805 ev = EVENT_ASSOC_TIMED_OUT;
806 else
807 return;
808
809 os_memset(&event, 0, sizeof(event));
810 os_memcpy(event.timeout_event.addr, nla_data(addr), ETH_ALEN);
811 wpa_supplicant_event(drv->ctx, ev, &event);
812}
813
814
c2a04078 815static void mlme_event(struct wpa_driver_nl80211_data *drv,
da1fb17c
JM		 816 enum nl80211_commands cmd, struct nlattr *frame,
817 struct nlattr *addr, struct nlattr *timed_out)
c2a04078 818{
da1fb17c
JM		 819 if (timed_out && addr) {
820 mlme_timeout_event(drv, cmd, addr);
821 return;
822 }
823
c2a04078
JM		 824 if (frame == NULL) {
825 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d without frame "
826 "data", cmd);
827 return;
828 }
829
830 wpa_printf(MSG_DEBUG, "nl80211: MLME event %d", cmd);
831 wpa_hexdump(MSG_MSGDUMP, "nl80211: MLME event frame",
832 nla_data(frame), nla_len(frame));
833
834 switch (cmd) {
835 case NL80211_CMD_AUTHENTICATE:
836 mlme_event_auth(drv, nla_data(frame), nla_len(frame));
837 break;
838 case NL80211_CMD_ASSOCIATE:
839 mlme_event_assoc(drv, nla_data(frame), nla_len(frame));
840 break;
841 case NL80211_CMD_DEAUTHENTICATE:
842 drv->associated = 0;
843 wpa_supplicant_event(drv->ctx, EVENT_DEAUTH, NULL);
844 break;
845 case NL80211_CMD_DISASSOCIATE:
846 drv->associated = 0;
847 wpa_supplicant_event(drv->ctx, EVENT_DISASSOC, NULL);
848 break;
849 default:
850 break;
851 }
852}
853
5b7b85f6
JM		 854#endif /* HOSTAPD */
855
c2a04078 856
35583f3f
JM		 857static void mlme_event_michael_mic_failure(struct wpa_driver_nl80211_data *drv,
858 struct nlattr *tb[])
859{
860 union wpa_event_data data;
861
862 wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure");
863 os_memset(&data, 0, sizeof(data));
864 if (tb[NL80211_ATTR_MAC]) {
865 wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address",
866 nla_data(tb[NL80211_ATTR_MAC]),
867 nla_len(tb[NL80211_ATTR_MAC]));
ad1e68e6 868 data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]);
35583f3f
JM		 869 }
870 if (tb[NL80211_ATTR_KEY_SEQ]) {
871 wpa_hexdump(MSG_DEBUG, "nl80211: TSC",
872 nla_data(tb[NL80211_ATTR_KEY_SEQ]),
873 nla_len(tb[NL80211_ATTR_KEY_SEQ]));
874 }
875 if (tb[NL80211_ATTR_KEY_TYPE]) {
876 enum nl80211_key_type key_type =
877 nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]);
878 wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type);
879 if (key_type == NL80211_KEYTYPE_PAIRWISE)
880 data.michael_mic_failure.unicast = 1;
881 } else
882 data.michael_mic_failure.unicast = 1;
883
884 if (tb[NL80211_ATTR_KEY_IDX]) {
885 u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]);
886 wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id);
887 }
888
889 wpa_supplicant_event(drv->ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
890}
891
892
97865538
JM		 893static int process_event(struct nl_msg *msg, void *arg)
894{
895 struct wpa_driver_nl80211_data *drv = arg;
896 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
897 struct nlattr *tb[NL80211_ATTR_MAX + 1];
898
899 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
900 genlmsg_attrlen(gnlh, 0), NULL);
901
902 if (tb[NL80211_ATTR_IFINDEX]) {
903 int ifindex = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
904 if (ifindex != drv->ifindex) {
905 wpa_printf(MSG_DEBUG, "nl80211: Ignored event (cmd=%d)"
906 " for foreign interface (ifindex %d)",
907 gnlh->cmd, ifindex);
908 return NL_SKIP;
909 }
910 }
911
ad1e68e6
JM		 912 if (drv->ap_scan_as_station &&
913 (gnlh->cmd == NL80211_CMD_NEW_SCAN_RESULTS ||
914 gnlh->cmd == NL80211_CMD_SCAN_ABORTED)) {
915 wpa_driver_nl80211_set_mode(drv, IEEE80211_MODE_AP);
916 drv->ap_scan_as_station = 0;
917 }
918
97865538 919 switch (gnlh->cmd) {
d942a79e
JM		 920 case NL80211_CMD_TRIGGER_SCAN:
921 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger");
922 break;
97865538
JM		 923 case NL80211_CMD_NEW_SCAN_RESULTS:
924 wpa_printf(MSG_DEBUG, "nl80211: New scan results available");
925 drv->scan_complete_events = 1;
926 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
927 drv->ctx);
928 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, NULL);
929 break;
930 case NL80211_CMD_SCAN_ABORTED:
931 wpa_printf(MSG_DEBUG, "nl80211: Scan aborted");
932 /*
933 * Need to indicate that scan results are available in order
934 * not to make wpa_supplicant stop its scanning.
935 */
936 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv,
937 drv->ctx);
938 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, NULL);
939 break;
ad1e68e6 940#ifndef HOSTAPD
c2a04078
JM		 941 case NL80211_CMD_AUTHENTICATE:
942 case NL80211_CMD_ASSOCIATE:
943 case NL80211_CMD_DEAUTHENTICATE:
944 case NL80211_CMD_DISASSOCIATE:
da1fb17c
JM		 945 mlme_event(drv, gnlh->cmd, tb[NL80211_ATTR_FRAME],
946 tb[NL80211_ATTR_MAC], tb[NL80211_ATTR_TIMED_OUT]);
c2a04078 947 break;
da72a1c1
ZY		 948 case NL80211_CMD_CONNECT:
949 case NL80211_CMD_ROAM:
950 mlme_event_connect(drv, gnlh->cmd,
951 tb[NL80211_ATTR_STATUS_CODE],
952 tb[NL80211_ATTR_MAC],
953 tb[NL80211_ATTR_REQ_IE],
954 tb[NL80211_ATTR_RESP_IE]);
955 break;
956 case NL80211_CMD_DISCONNECT:
7da2c527
JM		 957 if (drv->capa.flags & WPA_DRIVER_FLAGS_SME) {
958 /*
959 * Avoid reporting two disassociation events that could
960 * confuse the core code.
961 */
962 wpa_printf(MSG_DEBUG, "nl80211: Ignore disconnect "
963 "event when using userspace SME");
964 break;
965 }
da72a1c1
ZY		 966 drv->associated = 0;
967 wpa_supplicant_event(drv->ctx, EVENT_DISASSOC, NULL);
968 break;
5b7b85f6 969#endif /* HOSTAPD */
35583f3f
JM		 970 case NL80211_CMD_MICHAEL_MIC_FAILURE:
971 mlme_event_michael_mic_failure(drv, tb);
972 break;
97865538 973 default:
c2a04078
JM		 974 wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event "
975 "(cmd=%d)", gnlh->cmd);
97865538
JM		 976 break;
977 }
978
979 return NL_SKIP;
980}
981
982
983static void wpa_driver_nl80211_event_receive(int sock, void *eloop_ctx,
984 void *sock_ctx)
985{
986 struct nl_cb *cb;
987 struct wpa_driver_nl80211_data *drv = eloop_ctx;
988
989 wpa_printf(MSG_DEBUG, "nl80211: Event message available");
990
991 cb = nl_cb_clone(drv->nl_cb);
992 if (!cb)
993 return;
994 nl_cb_set(cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, no_seq_check, NULL);
995 nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, process_event, drv);
335ce76b 996 nl_recvmsgs(drv->nl_handle_event, cb);
97865538
JM		 997 nl_cb_put(cb);
998}
999
1000
2135f224
JM		 1001static int hostapd_set_iface_flags(struct wpa_driver_nl80211_data *drv,
1002 const char *ifname, int dev_up)
3f5285e8
JM		 1003{
1004 struct ifreq ifr;
1005
2135f224
JM		 1006 if (drv->ioctl_sock < 0)
1007 return -1;
1008
3f5285e8
JM		 1009 os_memset(&ifr, 0, sizeof(ifr));
1010 os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
2135f224
JM		 1011
1012 if (ioctl(drv->ioctl_sock, SIOCGIFFLAGS, &ifr) != 0) {
3f5285e8 1013 perror("ioctl[SIOCGIFFLAGS]");
2135f224
JM		 1014 wpa_printf(MSG_DEBUG, "Could not read interface flags (%s)",
1015 ifname);
3f5285e8
JM		 1016 return -1;
1017 }
3f5285e8 1018
2135f224
JM		 1019 if (dev_up) {
1020 if (ifr.ifr_flags & IFF_UP)
1021 return 0;
1022 ifr.ifr_flags |= IFF_UP;
1023 } else {
1024 if (!(ifr.ifr_flags & IFF_UP))
1025 return 0;
1026 ifr.ifr_flags &= ~IFF_UP;
1027 }
3f5285e8 1028
2135f224
JM		 1029 if (ioctl(drv->ioctl_sock, SIOCSIFFLAGS, &ifr) != 0) {
1030 perror("ioctl[SIOCSIFFLAGS]");
3f5285e8
JM		 1031 return -1;
1032 }
3f5285e8 1033
2135f224 1034 return 0;
3f5285e8
JM		 1035}
1036
1037
6d158490
LR		 1038/**
1039 * wpa_driver_nl80211_set_country - ask nl80211 to set the regulatory domain
1040 * @priv: driver_nl80211 private data
1041 * @alpha2_arg: country to which to switch to
1042 * Returns: 0 on success, -1 on failure
1043 *
1044 * This asks nl80211 to set the regulatory domain for given
1045 * country ISO / IEC alpha2.
1046 */
1047static int wpa_driver_nl80211_set_country(void *priv, const char *alpha2_arg)
1048{
1049 struct wpa_driver_nl80211_data *drv = priv;
1050 char alpha2[3];
1051 struct nl_msg *msg;
1052
1053 msg = nlmsg_alloc();
1054 if (!msg)
e785c2ba 1055 return -ENOMEM;
6d158490
LR		 1056
1057 alpha2[0] = alpha2_arg[0];
1058 alpha2[1] = alpha2_arg[1];
1059 alpha2[2] = '\0';
1060
1061 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1062 0, NL80211_CMD_REQ_SET_REG, 0);
1063
1064 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2);
1065 if (send_and_recv_msgs(drv, msg, NULL, NULL))
1066 return -EINVAL;
1067 return 0;
1068nla_put_failure:
1069 return -EINVAL;
1070}
1071
1072
bbaf0837 1073#ifndef HOSTAPD
80bc75f1
JM		 1074struct wiphy_info_data {
1075 int max_scan_ssids;
1581b38b 1076 int ap_supported;
93d11400
ZY		 1077 int auth_supported;
1078 int connect_supported;
80bc75f1
JM		 1079};
1080
1081
1082static int wiphy_info_handler(struct nl_msg *msg, void *arg)
1083{
1084 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1085 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1086 struct wiphy_info_data *info = arg;
1087
1088 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1089 genlmsg_attrlen(gnlh, 0), NULL);
1090
1091 if (tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS])
1092 info->max_scan_ssids =
1093 nla_get_u8(tb[NL80211_ATTR_MAX_NUM_SCAN_SSIDS]);
1094
1581b38b
JM		 1095 if (tb[NL80211_ATTR_SUPPORTED_IFTYPES]) {
1096 struct nlattr *nl_mode;
1097 int i;
1098 nla_for_each_nested(nl_mode,
1099 tb[NL80211_ATTR_SUPPORTED_IFTYPES], i) {
1100 if (nl_mode->nla_type == NL80211_IFTYPE_AP) {
1101 info->ap_supported = 1;
1102 break;
1103 }
1104 }
1105 }
1106
93d11400
ZY		 1107 if (tb[NL80211_ATTR_SUPPORTED_COMMANDS]) {
1108 struct nlattr *nl_cmd;
1109 int i;
1110
1111 nla_for_each_nested(nl_cmd,
1112 tb[NL80211_ATTR_SUPPORTED_COMMANDS], i) {
1113 u32 cmd = nla_get_u32(nl_cmd);
1114 if (cmd == NL80211_CMD_AUTHENTICATE)
1115 info->auth_supported = 1;
1116 else if (cmd == NL80211_CMD_CONNECT)
1117 info->connect_supported = 1;
1118 }
1119 }
1120
80bc75f1
JM		 1121 return NL_SKIP;
1122}
1123
1124
1125static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv,
1126 struct wiphy_info_data *info)
1127{
1128 struct nl_msg *msg;
1129
1130 os_memset(info, 0, sizeof(*info));
1131 msg = nlmsg_alloc();
1132 if (!msg)
1133 return -1;
1134
1135 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1136 0, NL80211_CMD_GET_WIPHY, 0);
1137
1138 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1139
1140 if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info) == 0)
1141 return 0;
1142 msg = NULL;
1143nla_put_failure:
1144 nlmsg_free(msg);
1145 return -1;
1146}
1147
1148
93d11400 1149static int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv)
80bc75f1
JM		 1150{
1151 struct wiphy_info_data info;
1152 if (wpa_driver_nl80211_get_info(drv, &info))
93d11400 1153 return -1;
80bc75f1 1154 drv->has_capability = 1;
1b2a72e8
JM		 1155 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */
1156 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
1157 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
1158 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
1159 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
1160 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 |
1161 WPA_DRIVER_CAPA_ENC_WEP104 |
1162 WPA_DRIVER_CAPA_ENC_TKIP |
1163 WPA_DRIVER_CAPA_ENC_CCMP;
1164
80bc75f1 1165 drv->capa.max_scan_ssids = info.max_scan_ssids;
1581b38b
JM		 1166 if (info.ap_supported)
1167 drv->capa.flags |= WPA_DRIVER_FLAGS_AP;
93d11400
ZY		 1168
1169 if (info.auth_supported)
1170 drv->capa.flags |= WPA_DRIVER_FLAGS_SME;
1171 else if (!info.connect_supported) {
1172 wpa_printf(MSG_INFO, "nl80211: Driver does not support "
1173 "authentication/association or connect commands");
1174 return -1;
1175 }
1176
0194fedb
JB		 1177 drv->capa.flags |= WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE;
1178
93d11400 1179 return 0;
80bc75f1 1180}
bbaf0837 1181#endif /* HOSTAPD */
80bc75f1
JM		 1182
1183
9fff9fdc
JM		 1184static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv,
1185 void *ctx)
3f5285e8 1186{
9fff9fdc 1187 int ret;
3f5285e8 1188
9fff9fdc 1189 /* Initialize generic netlink and nl80211 */
3f5285e8
JM		 1190
1191 drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
1192 if (drv->nl_cb == NULL) {
1193 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
1194 "callbacks");
1195 goto err1;
1196 }
1197
1198 drv->nl_handle = nl_handle_alloc_cb(drv->nl_cb);
1199 if (drv->nl_handle == NULL) {
1200 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
1201 "callbacks");
1202 goto err2;
1203 }
1204
335ce76b
JM		 1205 drv->nl_handle_event = nl_handle_alloc_cb(drv->nl_cb);
1206 if (drv->nl_handle_event == NULL) {
1207 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate netlink "
1208 "callbacks (event)");
1209 goto err2b;
1210 }
1211
3f5285e8
JM		 1212 if (genl_connect(drv->nl_handle)) {
1213 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
1214 "netlink");
1215 goto err3;
1216 }
1217
335ce76b
JM		 1218 if (genl_connect(drv->nl_handle_event)) {
1219 wpa_printf(MSG_ERROR, "nl80211: Failed to connect to generic "
1220 "netlink (event)");
1221 goto err3;
1222 }
1223
9fff9fdc
JM		 1224#ifdef CONFIG_LIBNL20
1225 if (genl_ctrl_alloc_cache(drv->nl_handle, &drv->nl_cache) < 0) {
1226 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1227 "netlink cache");
1228 goto err3;
1229 }
335ce76b
JM		 1230 if (genl_ctrl_alloc_cache(drv->nl_handle_event, &drv->nl_cache_event) <
1231 0) {
1232 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1233 "netlink cache (event)");
1234 goto err3b;
1235 }
9fff9fdc 1236#else /* CONFIG_LIBNL20 */
3f5285e8
JM		 1237 drv->nl_cache = genl_ctrl_alloc_cache(drv->nl_handle);
1238 if (drv->nl_cache == NULL) {
1239 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1240 "netlink cache");
1241 goto err3;
1242 }
335ce76b
JM		 1243 drv->nl_cache_event = genl_ctrl_alloc_cache(drv->nl_handle_event);
1244 if (drv->nl_cache_event == NULL) {
1245 wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
1246 "netlink cache (event)");
1247 goto err3b;
1248 }
9fff9fdc
JM		 1249#endif /* CONFIG_LIBNL20 */
1250
3f5285e8
JM		 1251 drv->nl80211 = genl_ctrl_search_by_name(drv->nl_cache, "nl80211");
1252 if (drv->nl80211 == NULL) {
1253 wpa_printf(MSG_ERROR, "nl80211: 'nl80211' generic netlink not "
1254 "found");
1255 goto err4;
1256 }
1257
97865538
JM		 1258 ret = nl_get_multicast_id(drv, "nl80211", "scan");
1259 if (ret >= 0)
335ce76b 1260 ret = nl_socket_add_membership(drv->nl_handle_event, ret);
97865538
JM		 1261 if (ret < 0) {
1262 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
1263 "membership for scan events: %d (%s)",
1264 ret, strerror(-ret));
1265 goto err4;
1266 }
c2a04078
JM		 1267
1268 ret = nl_get_multicast_id(drv, "nl80211", "mlme");
1269 if (ret >= 0)
335ce76b 1270 ret = nl_socket_add_membership(drv->nl_handle_event, ret);
c2a04078
JM		 1271 if (ret < 0) {
1272 wpa_printf(MSG_ERROR, "nl80211: Could not add multicast "
1273 "membership for mlme events: %d (%s)",
1274 ret, strerror(-ret));
1275 goto err4;
1276 }
c2a04078 1277
335ce76b 1278 eloop_register_read_sock(nl_socket_get_fd(drv->nl_handle_event),
97865538
JM		 1279 wpa_driver_nl80211_event_receive, drv, ctx);
1280
9fff9fdc
JM		 1281 return 0;
1282
1283err4:
335ce76b
JM		 1284 nl_cache_free(drv->nl_cache_event);
1285err3b:
9fff9fdc
JM		 1286 nl_cache_free(drv->nl_cache);
1287err3:
335ce76b
JM		 1288 nl_handle_destroy(drv->nl_handle_event);
1289err2b:
9fff9fdc
JM		 1290 nl_handle_destroy(drv->nl_handle);
1291err2:
1292 nl_cb_put(drv->nl_cb);
1293err1:
1294 return -1;
1295}
1296
1297
bbaf0837
JM		 1298static int wpa_driver_nl80211_init_link_events(
1299 struct wpa_driver_nl80211_data *drv)
1300{
1301#ifdef HOSTAPD
1302 return 0;
1303#else /* HOSTAPD */
1304 int s;
1305 struct sockaddr_nl local;
1306
1307 s = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
1308 if (s < 0) {
1309 perror("socket(PF_NETLINK,SOCK_RAW,NETLINK_ROUTE)");
7af376e4 1310 return -1;
bbaf0837
JM		 1311 }
1312
1313 os_memset(&local, 0, sizeof(local));
1314 local.nl_family = AF_NETLINK;
1315 local.nl_groups = RTMGRP_LINK;
1316 if (bind(s, (struct sockaddr *) &local, sizeof(local)) < 0) {
1317 perror("bind(netlink)");
1318 close(s);
1319 return -1;
1320 }
1321
1322 eloop_register_read_sock(s, wpa_driver_nl80211_event_receive_link, drv,
7af376e4 1323 drv->ctx);
bbaf0837
JM		 1324 drv->link_event_sock = s;
1325
1326 return 0;
1327#endif /* HOSTAPD */
1328}
1329
1330
9fff9fdc
JM		 1331/**
1332 * wpa_driver_nl80211_init - Initialize nl80211 driver interface
1333 * @ctx: context to be used when calling wpa_supplicant functions,
1334 * e.g., wpa_supplicant_event()
1335 * @ifname: interface name, e.g., wlan0
1336 * Returns: Pointer to private data, %NULL on failure
1337 */
1338static void * wpa_driver_nl80211_init(void *ctx, const char *ifname)
1339{
9fff9fdc
JM		 1340 struct wpa_driver_nl80211_data *drv;
1341
1342 drv = os_zalloc(sizeof(*drv));
1343 if (drv == NULL)
1344 return NULL;
1345 drv->ctx = ctx;
1346 os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
9fff9fdc
JM		 1347 drv->monitor_ifidx = -1;
1348 drv->monitor_sock = -1;
bbaf0837
JM		 1349 drv->link_event_sock = -1;
1350 drv->ioctl_sock = -1;
9fff9fdc 1351
bbaf0837
JM		 1352 if (wpa_driver_nl80211_init_nl(drv, ctx)) {
1353 os_free(drv);
1354 return NULL;
1355 }
9fff9fdc 1356
3f5285e8
JM		 1357 drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
1358 if (drv->ioctl_sock < 0) {
1359 perror("socket(PF_INET,SOCK_DGRAM)");
bbaf0837 1360 goto failed;
3f5285e8
JM		 1361 }
1362
bbaf0837
JM		 1363 if (wpa_driver_nl80211_init_link_events(drv) ||
1364 wpa_driver_nl80211_finish_drv_init(drv))
1365 goto failed;
7524cfb1
JM		 1366
1367 return drv;
1368
bbaf0837
JM		 1369failed:
1370 if (drv->link_event_sock >= 0) {
1371 eloop_unregister_read_sock(drv->link_event_sock);
1372 close(drv->link_event_sock);
1373 }
1374 if (drv->ioctl_sock >= 0)
1375 close(drv->ioctl_sock);
1376
7524cfb1 1377 genl_family_put(drv->nl80211);
7524cfb1 1378 nl_cache_free(drv->nl_cache);
7524cfb1 1379 nl_handle_destroy(drv->nl_handle);
7524cfb1 1380 nl_cb_put(drv->nl_cb);
bbaf0837 1381
7524cfb1
JM		 1382 os_free(drv);
1383 return NULL;
1384}
1385
1386
362f781e 1387static int
7524cfb1
JM		 1388wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv)
1389{
a87c9d96
JM		 1390 drv->ifindex = if_nametoindex(drv->ifname);
1391
bbaf0837 1392#ifndef HOSTAPD
ad1e68e6 1393 if (wpa_driver_nl80211_set_mode(drv, IEEE80211_MODE_INFRA) < 0) {
a87c9d96
JM		 1394 wpa_printf(MSG_DEBUG, "nl80211: Could not configure driver to "
1395 "use managed mode");
1396 }
1397
2135f224
JM		 1398 if (hostapd_set_iface_flags(drv, drv->ifname, 1)) {
1399 wpa_printf(MSG_ERROR, "Could not set interface '%s' "
1400 "UP", drv->ifname);
362f781e
JM		 1401 return -1;
1402 }
3f5285e8 1403
93d11400
ZY		 1404 if (wpa_driver_nl80211_capa(drv))
1405 return -1;
80bc75f1 1406
3f5285e8 1407 wpa_driver_nl80211_send_oper_ifla(drv, 1, IF_OPER_DORMANT);
bbaf0837 1408#endif /* HOSTAPD */
362f781e
JM		 1409
1410 return 0;
3f5285e8
JM		 1411}
1412
1413
bbaf0837
JM		 1414#ifdef HOSTAPD
1415static void wpa_driver_nl80211_free_bss(struct wpa_driver_nl80211_data *drv)
1416{
1417 struct i802_bss *bss, *prev;
1418 bss = drv->bss.next;
1419 while (bss) {
1420 prev = bss;
1421 bss = bss->next;
1422 os_free(bss);
1423 }
1424}
1425#endif /* HOSTAPD */
1426
1427
8a27af5c
JM		 1428#if defined(CONFIG_AP) || defined(HOSTAPD)
1429static int wpa_driver_nl80211_del_beacon(struct wpa_driver_nl80211_data *drv)
1430{
1431 struct nl_msg *msg;
1432
1433 msg = nlmsg_alloc();
1434 if (!msg)
1435 return -ENOMEM;
1436
1437 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1438 0, NL80211_CMD_DEL_BEACON, 0);
1439 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
1440
1441 return send_and_recv_msgs(drv, msg, NULL, NULL);
1442 nla_put_failure:
1443 return -ENOBUFS;
1444}
1445#endif /* CONFIG_AP || HOSTAPD */
1446
1447
3f5285e8 1448/**
7e5ba1b9
JM		 1449 * wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface
1450 * @priv: Pointer to private nl80211 data from wpa_driver_nl80211_init()
3f5285e8
JM		 1451 *
1452 * Shut down driver interface and processing of driver events. Free
1453 * private data buffer if one was allocated in wpa_driver_nl80211_init().
1454 */
7e5ba1b9 1455static void wpa_driver_nl80211_deinit(void *priv)
3f5285e8
JM		 1456{
1457 struct wpa_driver_nl80211_data *drv = priv;
3f5285e8 1458
bbaf0837 1459#if defined(CONFIG_AP) || defined(HOSTAPD)
460456f8 1460 nl80211_remove_monitor_interface(drv);
0915d02c
JM		 1461 if (drv->monitor_sock >= 0) {
1462 eloop_unregister_read_sock(drv->monitor_sock);
1463 close(drv->monitor_sock);
1464 }
8a27af5c
JM		 1465
1466 if (drv->nlmode == NL80211_IFTYPE_AP)
1467 wpa_driver_nl80211_del_beacon(drv);
bbaf0837 1468#endif /* CONFIG_AP || HOSTAPD */
0915d02c 1469
bbaf0837
JM		 1470#ifdef HOSTAPD
1471 if (drv->last_freq_ht) {
1472 /* Clear HT flags from the driver */
1473 struct hostapd_freq_params freq;
1474 os_memset(&freq, 0, sizeof(freq));
1475 freq.freq = drv->last_freq;
1476 i802_set_freq(priv, &freq);
1477 }
1478
bbaf0837
JM		 1479 if (drv->eapol_sock >= 0) {
1480 eloop_unregister_read_sock(drv->eapol_sock);
1481 close(drv->eapol_sock);
1482 }
1483
1484 if (drv->if_indices != drv->default_if_indices)
1485 os_free(drv->if_indices);
1486
1487 wpa_driver_nl80211_free_bss(drv);
1488#else /* HOSTAPD */
37b7d082 1489#ifndef NO_WEXT
36b15723 1490 wpa_driver_nl80211_set_auth_param(drv, IW_AUTH_DROP_UNENCRYPTED, 0);
37b7d082 1491#endif /* NO_WEXT */
3f5285e8
JM		 1492
1493 wpa_driver_nl80211_send_oper_ifla(priv, 0, IF_OPER_UP);
1494
bbaf0837
JM		 1495 if (drv->link_event_sock >= 0) {
1496 eloop_unregister_read_sock(drv->link_event_sock);
1497 close(drv->link_event_sock);
1498 }
1499#endif /* HOSTAPD */
3f5285e8 1500
bbaf0837
JM		 1501 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
1502
1503 (void) hostapd_set_iface_flags(drv, drv->ifname, 0);
ad1e68e6 1504 wpa_driver_nl80211_set_mode(drv, IEEE80211_MODE_INFRA);
3f5285e8 1505
bbaf0837
JM		 1506 if (drv->ioctl_sock >= 0)
1507 close(drv->ioctl_sock);
3f5285e8 1508
335ce76b 1509 eloop_unregister_read_sock(nl_socket_get_fd(drv->nl_handle_event));
3f5285e8
JM		 1510 genl_family_put(drv->nl80211);
1511 nl_cache_free(drv->nl_cache);
335ce76b 1512 nl_cache_free(drv->nl_cache_event);
3f5285e8 1513 nl_handle_destroy(drv->nl_handle);
335ce76b 1514 nl_handle_destroy(drv->nl_handle_event);
3f5285e8
JM		 1515 nl_cb_put(drv->nl_cb);
1516
1517 os_free(drv);
1518}
1519
1520
1521/**
1522 * wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion
ad1e68e6 1523 * @eloop_ctx: Driver private data
3f5285e8
JM		 1524 * @timeout_ctx: ctx argument given to wpa_driver_nl80211_init()
1525 *
1526 * This function can be used as registered timeout when starting a scan to
1527 * generate a scan completed event if the driver does not report this.
1528 */
1529static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx)
1530{
ad1e68e6
JM		 1531 struct wpa_driver_nl80211_data *drv = eloop_ctx;
1532 if (drv->ap_scan_as_station) {
1533 wpa_driver_nl80211_set_mode(drv, IEEE80211_MODE_AP);
1534 drv->ap_scan_as_station = 0;
1535 }
3f5285e8
JM		 1536 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results");
1537 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL);
1538}
1539
1540
1541/**
1542 * wpa_driver_nl80211_scan - Request the driver to initiate scan
ad1e68e6 1543 * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
6a1063e0 1544 * @params: Scan parameters
3f5285e8
JM		 1545 * Returns: 0 on success, -1 on failure
1546 */
6a1063e0
JM		 1547static int wpa_driver_nl80211_scan(void *priv,
1548 struct wpa_driver_scan_params *params)
3f5285e8
JM		 1549{
1550 struct wpa_driver_nl80211_data *drv = priv;
3f5285e8 1551 int ret = 0, timeout;
d3a98225 1552 struct nl_msg *msg, *ssids, *freqs;
6a1063e0 1553 size_t i;
3f5285e8 1554
0e75527f
JM		 1555 msg = nlmsg_alloc();
1556 ssids = nlmsg_alloc();
d3a98225
JM		 1557 freqs = nlmsg_alloc();
1558 if (!msg || !ssids || !freqs) {
0e75527f
JM		 1559 nlmsg_free(msg);
1560 nlmsg_free(ssids);
d3a98225 1561 nlmsg_free(freqs);
3f5285e8
JM		 1562 return -1;
1563 }
1564
0e75527f
JM		 1565 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
1566 NL80211_CMD_TRIGGER_SCAN, 0);
1567
1568 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3f5285e8 1569
6a1063e0
JM		 1570 for (i = 0; i < params->num_ssids; i++) {
1571 NLA_PUT(ssids, i + 1, params->ssids[i].ssid_len,
1572 params->ssids[i].ssid);
3f5285e8 1573 }
6a1063e0
JM		 1574 if (params->num_ssids)
1575 nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids);
3f5285e8 1576
d173df52
JM		 1577 if (params->extra_ies) {
1578 NLA_PUT(msg, NL80211_ATTR_IE, params->extra_ies_len,
1579 params->extra_ies);
1580 }
1581
d3a98225
JM		 1582 if (params->freqs) {
1583 for (i = 0; params->freqs[i]; i++)
1584 NLA_PUT_U32(freqs, i + 1, params->freqs[i]);
1585 nla_put_nested(msg, NL80211_ATTR_SCAN_FREQUENCIES, freqs);
1586 }
1587
0e75527f
JM		 1588 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
1589 msg = NULL;
1590 if (ret) {
1591 wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d "
1592 "(%s)", ret, strerror(-ret));
ad1e68e6
JM		 1593#ifdef HOSTAPD
1594 if (drv->nlmode == NL80211_IFTYPE_AP) {
1595 /*
1596 * mac80211 does not allow scan requests in AP mode, so
1597 * try to do this in station mode.
1598 */
1599 if (wpa_driver_nl80211_set_mode(drv,
1600 IEEE80211_MODE_INFRA))
1601 goto nla_put_failure;
1602
1603 if (wpa_driver_nl80211_scan(drv, params)) {
1604 wpa_driver_nl80211_set_mode(drv,
1605 IEEE80211_MODE_AP);
1606 goto nla_put_failure;
1607 }
1608
1609 /* Restore AP mode when processing scan results */
1610 drv->ap_scan_as_station = 1;
1611 ret = 0;
1612 } else
1613 goto nla_put_failure;
1614#else /* HOSTAPD */
0e75527f 1615 goto nla_put_failure;
ad1e68e6 1616#endif /* HOSTAPD */
3f5285e8
JM		 1617 }
1618
1619 /* Not all drivers generate "scan completed" wireless event, so try to
1620 * read results after a timeout. */
0e75527f 1621 timeout = 10;
3f5285e8
JM		 1622 if (drv->scan_complete_events) {
1623 /*
d173df52
JM		 1624 * The driver seems to deliver events to notify when scan is
1625 * complete, so use longer timeout to avoid race conditions
1626 * with scanning and following association request.
3f5285e8
JM		 1627 */
1628 timeout = 30;
1629 }
1630 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d "
1631 "seconds", ret, timeout);
1632 eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
0e75527f
JM		 1633 eloop_register_timeout(timeout, 0, wpa_driver_nl80211_scan_timeout,
1634 drv, drv->ctx);
3f5285e8 1635
0e75527f
JM		 1636nla_put_failure:
1637 nlmsg_free(ssids);
1638 nlmsg_free(msg);
d3a98225 1639 nlmsg_free(freqs);
3f5285e8
JM		 1640 return ret;
1641}
1642
1643
b3db1e1c 1644static int bss_info_handler(struct nl_msg *msg, void *arg)
3f5285e8 1645{
b3db1e1c
JM		 1646 struct nlattr *tb[NL80211_ATTR_MAX + 1];
1647 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
1648 struct nlattr *bss[NL80211_BSS_MAX + 1];
1649 static struct nla_policy bss_policy[NL80211_BSS_MAX + 1] = {
1650 [NL80211_BSS_BSSID] = { .type = NLA_UNSPEC },
1651 [NL80211_BSS_FREQUENCY] = { .type = NLA_U32 },
1652 [NL80211_BSS_TSF] = { .type = NLA_U64 },
1653 [NL80211_BSS_BEACON_INTERVAL] = { .type = NLA_U16 },
1654 [NL80211_BSS_CAPABILITY] = { .type = NLA_U16 },
1655 [NL80211_BSS_INFORMATION_ELEMENTS] = { .type = NLA_UNSPEC },
1656 [NL80211_BSS_SIGNAL_MBM] = { .type = NLA_U32 },
1657 [NL80211_BSS_SIGNAL_UNSPEC] = { .type = NLA_U8 },
b3ad11bb 1658 [NL80211_BSS_SEEN_MS_AGO] = { .type = NLA_U32 },
b3db1e1c
JM		 1659 };
1660 struct wpa_scan_results *res = arg;
3f5285e8
JM		 1661 struct wpa_scan_res **tmp;
1662 struct wpa_scan_res *r;
b3db1e1c
JM		 1663 const u8 *ie;
1664 size_t ie_len;
3f5285e8 1665
b3db1e1c
JM		 1666 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
1667 genlmsg_attrlen(gnlh, 0), NULL);
1668 if (!tb[NL80211_ATTR_BSS])
1669 return NL_SKIP;
1670 if (nla_parse_nested(bss, NL80211_BSS_MAX, tb[NL80211_ATTR_BSS],
1671 bss_policy))
1672 return NL_SKIP;
1673 if (bss[NL80211_BSS_INFORMATION_ELEMENTS]) {
1674 ie = nla_data(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
1675 ie_len = nla_len(bss[NL80211_BSS_INFORMATION_ELEMENTS]);
1676 } else {
1677 ie = NULL;
1678 ie_len = 0;
1679 }
3f5285e8 1680
b3db1e1c 1681 r = os_zalloc(sizeof(*r) + ie_len);
3f5285e8 1682 if (r == NULL)
b3db1e1c
JM		 1683 return NL_SKIP;
1684 if (bss[NL80211_BSS_BSSID])
1685 os_memcpy(r->bssid, nla_data(bss[NL80211_BSS_BSSID]),
1686 ETH_ALEN);
1687 if (bss[NL80211_BSS_FREQUENCY])
1688 r->freq = nla_get_u32(bss[NL80211_BSS_FREQUENCY]);
1689 if (bss[NL80211_BSS_BEACON_INTERVAL])
1690 r->beacon_int = nla_get_u16(bss[NL80211_BSS_BEACON_INTERVAL]);
1691 if (bss[NL80211_BSS_CAPABILITY])
1692 r->caps = nla_get_u16(bss[NL80211_BSS_CAPABILITY]);
7c2849d2
JM		 1693 r->flags |= WPA_SCAN_NOISE_INVALID;
1694 if (bss[NL80211_BSS_SIGNAL_MBM]) {
b3db1e1c 1695 r->level = nla_get_u32(bss[NL80211_BSS_SIGNAL_MBM]);
7c2849d2
JM		 1696 r->level /= 100; /* mBm to dBm */
1697 r->flags |= WPA_SCAN_LEVEL_DBM | WPA_SCAN_QUAL_INVALID;
1698 } else if (bss[NL80211_BSS_SIGNAL_UNSPEC]) {
1699 r->level = nla_get_u8(bss[NL80211_BSS_SIGNAL_UNSPEC]);
1700 r->flags |= WPA_SCAN_LEVEL_INVALID;
1701 } else
1702 r->flags |= WPA_SCAN_LEVEL_INVALID | WPA_SCAN_QUAL_INVALID;
b3db1e1c
JM		 1703 if (bss[NL80211_BSS_TSF])
1704 r->tsf = nla_get_u64(bss[NL80211_BSS_TSF]);
b3ad11bb
JM		 1705 if (bss[NL80211_BSS_SEEN_MS_AGO])
1706 r->age = nla_get_u32(bss[NL80211_BSS_SEEN_MS_AGO]);
b3db1e1c
JM		 1707 r->ie_len = ie_len;
1708 if (ie)
1709 os_memcpy(r + 1, ie, ie_len);
3f5285e8
JM		 1710
1711 tmp = os_realloc(res->res,
1712 (res->num + 1) * sizeof(struct wpa_scan_res *));
1713 if (tmp == NULL) {
1714 os_free(r);
b3db1e1c 1715 return NL_SKIP;
3f5285e8
JM		 1716 }
1717 tmp[res->num++] = r;
1718 res->res = tmp;
b3db1e1c
JM		 1719
1720 return NL_SKIP;
3f5285e8 1721}
b3db1e1c 1722
3f5285e8
JM		 1723
1724/**
1725 * wpa_driver_nl80211_get_scan_results - Fetch the latest scan results
1726 * @priv: Pointer to private wext data from wpa_driver_nl80211_init()
1727 * Returns: Scan results on success, -1 on failure
1728 */
7e5ba1b9
JM		 1729static struct wpa_scan_results *
1730wpa_driver_nl80211_get_scan_results(void *priv)
3f5285e8
JM		 1731{
1732 struct wpa_driver_nl80211_data *drv = priv;
b3db1e1c 1733 struct nl_msg *msg;
3f5285e8 1734 struct wpa_scan_results *res;
b3db1e1c 1735 int ret;
3f5285e8
JM		 1736
1737 res = os_zalloc(sizeof(*res));
b3db1e1c
JM		 1738 if (res == NULL)
1739 return 0;
1740 msg = nlmsg_alloc();
1741 if (!msg)
1742 goto nla_put_failure;
3f5285e8 1743
b3db1e1c
JM		 1744 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, NLM_F_DUMP,
1745 NL80211_CMD_GET_SCAN, 0);
1746 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3f5285e8 1747
b3db1e1c
JM		 1748 ret = send_and_recv_msgs(drv, msg, bss_info_handler, res);
1749 msg = NULL;
1750 if (ret == 0) {
1751 wpa_printf(MSG_DEBUG, "Received scan results (%lu BSSes)",
1752 (unsigned long) res->num);
1753 return res;
3f5285e8 1754 }
b3db1e1c
JM		 1755 wpa_printf(MSG_DEBUG, "nl80211: Scan result fetch failed: ret=%d "
1756 "(%s)", ret, strerror(-ret));
1757nla_put_failure:
1758 nlmsg_free(msg);
1759 wpa_scan_results_free(res);
1760 return NULL;
3f5285e8
JM		 1761}
1762
1763
1ad1cdc2
JM		 1764static int nl_set_encr(int ifindex, struct wpa_driver_nl80211_data *drv,
1765 wpa_alg alg, const u8 *addr, int key_idx, int set_tx,
1766 const u8 *seq, size_t seq_len,
1767 const u8 *key, size_t key_len)
3f5285e8 1768{
3f5285e8 1769 struct nl_msg *msg;
1ad1cdc2 1770 int ret;
3f5285e8 1771
1ad1cdc2
JM		 1772 wpa_printf(MSG_DEBUG, "%s: ifindex=%d alg=%d addr=%p key_idx=%d "
1773 "set_tx=%d seq_len=%lu key_len=%lu",
1774 __func__, ifindex, alg, addr, key_idx, set_tx,
3f5285e8
JM		 1775 (unsigned long) seq_len, (unsigned long) key_len);
1776
1777 msg = nlmsg_alloc();
1ad1cdc2
JM		 1778 if (!msg)
1779 return -ENOMEM;
3f5285e8
JM		 1780
1781 if (alg == WPA_ALG_NONE) {
1ad1cdc2
JM		 1782 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1783 0, NL80211_CMD_DEL_KEY, 0);
3f5285e8 1784 } else {
1ad1cdc2
JM		 1785 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1786 0, NL80211_CMD_NEW_KEY, 0);
3f5285e8 1787 NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key);
d723bab4
JM		 1788 switch (alg) {
1789 case WPA_ALG_WEP:
1790 if (key_len == 5)
1791 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
1792 WLAN_CIPHER_SUITE_WEP40);
1793 else
1794 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
1795 WLAN_CIPHER_SUITE_WEP104);
1796 break;
1797 case WPA_ALG_TKIP:
1798 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
1799 WLAN_CIPHER_SUITE_TKIP);
1800 break;
1801 case WPA_ALG_CCMP:
1802 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
1803 WLAN_CIPHER_SUITE_CCMP);
1804 break;
1805 case WPA_ALG_IGTK:
1806 NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
1807 WLAN_CIPHER_SUITE_AES_CMAC);
1808 break;
1809 default:
1810 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
1811 "algorithm %d", __func__, alg);
3f5285e8
JM		 1812 nlmsg_free(msg);
1813 return -1;
1814 }
1815 }
1816
849ef835 1817 if (seq && seq_len)
1ad1cdc2
JM		 1818 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq);
1819
3f5285e8
JM		 1820 if (addr && os_memcmp(addr, "\xff\xff\xff\xff\xff\xff", ETH_ALEN) != 0)
1821 {
1822 wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr));
1823 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
1824 }
1825 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1ad1cdc2 1826 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
3f5285e8 1827
1ad1cdc2
JM		 1828 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
1829 if (ret == -ENOENT && alg == WPA_ALG_NONE)
1830 ret = 0;
1831 if (ret)
1832 wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)",
1833 ret, strerror(-ret));
3f5285e8 1834
1ad1cdc2
JM		 1835 /*
1836 * If we failed or don't need to set the default TX key (below),
1837 * we're done here.
1838 */
1839 if (ret || !set_tx || alg == WPA_ALG_NONE)
1840 return ret;
1841#ifdef HOSTAPD /* FIX: is this needed? */
1842 if (addr)
1843 return ret;
1844#endif /* HOSTAPD */
3f5285e8 1845
1ad1cdc2
JM		 1846 msg = nlmsg_alloc();
1847 if (!msg)
1848 return -ENOMEM;
3f5285e8 1849
1ad1cdc2
JM		 1850 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
1851 0, NL80211_CMD_SET_KEY, 0);
1852 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1853 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
1854 if (alg == WPA_ALG_IGTK)
1855 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT);
1856 else
1857 NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
3f5285e8 1858
1ad1cdc2
JM		 1859 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
1860 if (ret == -ENOENT)
1861 ret = 0;
1862 if (ret)
1863 wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; "
1864 "err=%d %s)", ret, strerror(-ret));
1865 return ret;
3f5285e8
JM		 1866
1867nla_put_failure:
6241fcb1 1868 return -ENOBUFS;
3f5285e8
JM		 1869}
1870
1871
c811d5bc 1872#ifndef HOSTAPD
0194fedb
JB		 1873static int nl_add_key(struct nl_msg *msg, wpa_alg alg,
1874 int key_idx, int defkey,
1875 const u8 *seq, size_t seq_len,
1876 const u8 *key, size_t key_len)
1877{
1878 struct nlattr *key_attr = nla_nest_start(msg, NL80211_ATTR_KEY);
1879 if (!key_attr)
1880 return -1;
1881
1882 if (defkey && alg == WPA_ALG_IGTK)
1883 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT_MGMT);
1884 else if (defkey)
1885 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
1886
1887 NLA_PUT_U8(msg, NL80211_KEY_IDX, key_idx);
1888
d723bab4
JM		 1889 switch (alg) {
1890 case WPA_ALG_WEP:
1891 if (key_len == 5)
2aa5f847
JM		 1892 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
1893 WLAN_CIPHER_SUITE_WEP40);
d723bab4 1894 else
2aa5f847
JM		 1895 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
1896 WLAN_CIPHER_SUITE_WEP104);
d723bab4
JM		 1897 break;
1898 case WPA_ALG_TKIP:
2aa5f847 1899 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_TKIP);
d723bab4
JM		 1900 break;
1901 case WPA_ALG_CCMP:
2aa5f847 1902 NLA_PUT_U32(msg, NL80211_KEY_CIPHER, WLAN_CIPHER_SUITE_CCMP);
d723bab4
JM		 1903 break;
1904 case WPA_ALG_IGTK:
2aa5f847
JM		 1905 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
1906 WLAN_CIPHER_SUITE_AES_CMAC);
d723bab4
JM		 1907 break;
1908 default:
1909 wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
1910 "algorithm %d", __func__, alg);
0194fedb 1911 return -1;
d723bab4 1912 }
0194fedb
JB		 1913
1914 if (seq && seq_len)
1915 NLA_PUT(msg, NL80211_KEY_SEQ, seq_len, seq);
1916
1917 NLA_PUT(msg, NL80211_KEY_DATA, key_len, key);
1918
1919 nla_nest_end(msg, key_attr);
1920
1921 return 0;
1922 nla_put_failure:
1923 return -1;
1924}
1925
c811d5bc 1926
cfaab580
ZY		 1927static int nl80211_set_conn_keys(struct wpa_driver_associate_params *params,
1928 struct nl_msg *msg)
1929{
1930 int i, privacy = 0;
1931 struct nlattr *nl_keys, *nl_key;
1932
1933 for (i = 0; i < 4; i++) {
1934 if (!params->wep_key[i])
1935 continue;
1936 privacy = 1;
1937 break;
1938 }
1939 if (!privacy)
1940 return 0;
1941
1942 NLA_PUT_FLAG(msg, NL80211_ATTR_PRIVACY);
1943
1944 nl_keys = nla_nest_start(msg, NL80211_ATTR_KEYS);
1945 if (!nl_keys)
1946 goto nla_put_failure;
1947
1948 for (i = 0; i < 4; i++) {
1949 if (!params->wep_key[i])
1950 continue;
1951
1952 nl_key = nla_nest_start(msg, i);
1953 if (!nl_key)
1954 goto nla_put_failure;
1955
1956 NLA_PUT(msg, NL80211_KEY_DATA, params->wep_key_len[i],
1957 params->wep_key[i]);
1958 if (params->wep_key_len[i] == 5)
1959 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
1960 WLAN_CIPHER_SUITE_WEP40);
1961 else
1962 NLA_PUT_U32(msg, NL80211_KEY_CIPHER,
1963 WLAN_CIPHER_SUITE_WEP104);
1964
1965 NLA_PUT_U8(msg, NL80211_KEY_IDX, i);
1966
1967 if (i == params->wep_tx_keyidx)
1968 NLA_PUT_FLAG(msg, NL80211_KEY_DEFAULT);
1969
1970 nla_nest_end(msg, nl_key);
1971 }
1972 nla_nest_end(msg, nl_keys);
1973
1974 return 0;
1975
1976nla_put_failure:
1977 return -ENOBUFS;
1978}
1979
1980
1ad1cdc2
JM		 1981static int wpa_driver_nl80211_set_key(void *priv, wpa_alg alg,
1982 const u8 *addr, int key_idx,
1983 int set_tx, const u8 *seq,
1984 size_t seq_len,
1985 const u8 *key, size_t key_len)
1986{
1987 struct wpa_driver_nl80211_data *drv = priv;
1988 return nl_set_encr(drv->ifindex, drv, alg, addr, key_idx, set_tx, seq,
1989 seq_len, key, key_len);
1990}
1991
1992
c2a04078
JM		 1993static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
1994 const u8 *addr, int cmd, u16 reason_code)
1995{
1996 int ret = -1;
1997 struct nl_msg *msg;
1998
1999 msg = nlmsg_alloc();
2000 if (!msg)
2001 return -1;
2002
2003 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0, cmd, 0);
2004
2005 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2006 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason_code);
2007 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
2008
2009 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2010 msg = NULL;
2011 if (ret) {
2012 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
2013 "(%s)", ret, strerror(-ret));
2014 goto nla_put_failure;
2015 }
2016 ret = 0;
2017
2018nla_put_failure:
2019 nlmsg_free(msg);
2020 return ret;
2021}
3f5285e8
JM		 2022
2023
cfaab580
ZY		 2024static int wpa_driver_nl80211_disconnect(struct wpa_driver_nl80211_data *drv,
2025 const u8 *addr, int reason_code)
2026{
2027 wpa_printf(MSG_DEBUG, "%s", __func__);
2028 drv->associated = 0;
2029 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISCONNECT,
2030 reason_code);
2031}
2032
2033
3f5285e8 2034static int wpa_driver_nl80211_deauthenticate(void *priv, const u8 *addr,
c2a04078 2035 int reason_code)
3f5285e8
JM		 2036{
2037 struct wpa_driver_nl80211_data *drv = priv;
cfaab580
ZY		 2038 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
2039 return wpa_driver_nl80211_disconnect(drv, addr, reason_code);
c2a04078 2040 wpa_printf(MSG_DEBUG, "%s", __func__);
13405f35 2041 drv->associated = 0;
c2a04078
JM		 2042 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DEAUTHENTICATE,
2043 reason_code);
3f5285e8
JM		 2044}
2045
2046
2047static int wpa_driver_nl80211_disassociate(void *priv, const u8 *addr,
c2a04078 2048 int reason_code)
3f5285e8
JM		 2049{
2050 struct wpa_driver_nl80211_data *drv = priv;
cfaab580
ZY		 2051 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
2052 return wpa_driver_nl80211_disconnect(drv, addr, reason_code);
c2a04078 2053 wpa_printf(MSG_DEBUG, "%s", __func__);
13405f35 2054 drv->associated = 0;
c2a04078
JM		 2055 return wpa_driver_nl80211_mlme(drv, addr, NL80211_CMD_DISASSOCIATE,
2056 reason_code);
3f5285e8
JM		 2057}
2058
2059
c2a04078
JM		 2060static int wpa_driver_nl80211_authenticate(
2061 void *priv, struct wpa_driver_auth_params *params)
2062{
2063 struct wpa_driver_nl80211_data *drv = priv;
a0b2f99b 2064 int ret = -1, i;
c2a04078
JM		 2065 struct nl_msg *msg;
2066 enum nl80211_auth_type type;
6d6f4bb8 2067 int count = 0;
c2a04078
JM		 2068
2069 drv->associated = 0;
2070
6d6f4bb8 2071retry:
c2a04078
JM		 2072 msg = nlmsg_alloc();
2073 if (!msg)
2074 return -1;
2075
2076 wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)",
2077 drv->ifindex);
a0b2f99b 2078
0194fedb
JB		 2079 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
2080 NL80211_CMD_AUTHENTICATE, 0);
2081
a0b2f99b
JM		 2082 for (i = 0; i < 4; i++) {
2083 if (!params->wep_key[i])
2084 continue;
2085 wpa_driver_nl80211_set_key(drv, WPA_ALG_WEP, NULL, i,
2086 i == params->wep_tx_keyidx, NULL, 0,
2087 params->wep_key[i],
2088 params->wep_key_len[i]);
0194fedb
JB		 2089 if (params->wep_tx_keyidx != i)
2090 continue;
2091 if (nl_add_key(msg, WPA_ALG_WEP, i, 1, NULL, 0,
2092 params->wep_key[i], params->wep_key_len[i])) {
2093 nlmsg_free(msg);
2094 return -1;
2095 }
a0b2f99b
JM		 2096 }
2097
c2a04078
JM		 2098 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2099 if (params->bssid) {
2100 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
2101 MAC2STR(params->bssid));
2102 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
2103 }
2104 if (params->freq) {
2105 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
2106 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
2107 }
2108 if (params->ssid) {
2109 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
2110 params->ssid, params->ssid_len);
2111 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
2112 params->ssid);
2113 }
2114 wpa_hexdump(MSG_DEBUG, " * IEs", params->ie, params->ie_len);
2115 if (params->ie)
2116 NLA_PUT(msg, NL80211_ATTR_IE, params->ie_len, params->ie);
2117 /*
2118 * TODO: if multiple auth_alg options enabled, try them one by one if
2119 * the AP rejects authentication due to unknown auth alg
2120 */
2121 if (params->auth_alg & AUTH_ALG_OPEN_SYSTEM)
2122 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2123 else if (params->auth_alg & AUTH_ALG_SHARED_KEY)
2124 type = NL80211_AUTHTYPE_SHARED_KEY;
2125 else if (params->auth_alg & AUTH_ALG_LEAP)
2126 type = NL80211_AUTHTYPE_NETWORK_EAP;
2127 else if (params->auth_alg & AUTH_ALG_FT)
2128 type = NL80211_AUTHTYPE_FT;
2129 else
2130 goto nla_put_failure;
2131 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
2132 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
2133
2134 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2135 msg = NULL;
2136 if (ret) {
2137 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
2138 "(%s)", ret, strerror(-ret));
6d6f4bb8
JM		 2139 count++;
2140 if (ret == -EALREADY && count == 1 && params->bssid) {
2141 /*
2142 * mac80211 does not currently accept new
2143 * authentication if we are already authenticated. As a
2144 * workaround, force deauthentication and try again.
2145 */
2146 wpa_printf(MSG_DEBUG, "nl80211: Retry authentication "
2147 "after forced deauthentication");
2148 wpa_driver_nl80211_deauthenticate(
2149 drv, params->bssid,
2150 WLAN_REASON_PREV_AUTH_NOT_VALID);
2151 nlmsg_free(msg);
2152 goto retry;
2153 }
c2a04078
JM		 2154 goto nla_put_failure;
2155 }
2156 ret = 0;
2157 wpa_printf(MSG_DEBUG, "nl80211: Authentication request send "
2158 "successfully");
2159
2160nla_put_failure:
2161 nlmsg_free(msg);
2162 return ret;
2163}
2164
c811d5bc
JM		 2165#endif /* HOSTAPD */
2166
c2a04078 2167
c3965310 2168#if defined(CONFIG_AP) || defined(HOSTAPD)
282d5590
JM		 2169
2170struct phy_info_arg {
2171 u16 *num_modes;
2172 struct hostapd_hw_modes *modes;
2173};
2174
2175static int phy_info_handler(struct nl_msg *msg, void *arg)
2176{
2177 struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
2178 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
2179 struct phy_info_arg *phy_info = arg;
2180
2181 struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
2182
2183 struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
2184 static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
2185 [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
2186 [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
2187 [NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG },
2188 [NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG },
2189 [NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
2190 [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
2191 };
2192
2193 struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
2194 static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
2195 [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
2196 [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = { .type = NLA_FLAG },
2197 };
2198
2199 struct nlattr *nl_band;
2200 struct nlattr *nl_freq;
2201 struct nlattr *nl_rate;
2202 int rem_band, rem_freq, rem_rate;
2203 struct hostapd_hw_modes *mode;
2204 int idx, mode_is_set;
2205
2206 nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
2207 genlmsg_attrlen(gnlh, 0), NULL);
2208
2209 if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
2210 return NL_SKIP;
2211
2212 nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) {
2213 mode = realloc(phy_info->modes, (*phy_info->num_modes + 1) * sizeof(*mode));
2214 if (!mode)
2215 return NL_SKIP;
2216 phy_info->modes = mode;
2217
2218 mode_is_set = 0;
2219
2220 mode = &phy_info->modes[*(phy_info->num_modes)];
2221 memset(mode, 0, sizeof(*mode));
2222 *(phy_info->num_modes) += 1;
2223
2224 nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
2225 nla_len(nl_band), NULL);
2226
2227 if (tb_band[NL80211_BAND_ATTR_HT_CAPA]) {
2228 mode->ht_capab = nla_get_u16(
2229 tb_band[NL80211_BAND_ATTR_HT_CAPA]);
2230 }
2231
08eb154d
JM		 2232 if (tb_band[NL80211_BAND_ATTR_HT_MCS_SET] &&
2233 nla_len(tb_band[NL80211_BAND_ATTR_HT_MCS_SET])) {
2234 u8 *mcs;
2235 mcs = nla_data(tb_band[NL80211_BAND_ATTR_HT_MCS_SET]);
2236 os_memcpy(mode->mcs_set, mcs, 16);
2237 }
2238
282d5590
JM		 2239 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
2240 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
2241 nla_len(nl_freq), freq_policy);
2242 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
2243 continue;
2244 mode->num_channels++;
2245 }
2246
2247 mode->channels = calloc(mode->num_channels, sizeof(struct hostapd_channel_data));
2248 if (!mode->channels)
2249 return NL_SKIP;
2250
2251 idx = 0;
2252
2253 nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
2254 nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
2255 nla_len(nl_freq), freq_policy);
2256 if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
2257 continue;
2258
2259 mode->channels[idx].freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
2260 mode->channels[idx].flag = 0;
2261
2262 if (!mode_is_set) {
2263 /* crude heuristic */
2264 if (mode->channels[idx].freq < 4000)
2265 mode->mode = HOSTAPD_MODE_IEEE80211B;
2266 else
2267 mode->mode = HOSTAPD_MODE_IEEE80211A;
2268 mode_is_set = 1;
2269 }
2270
2271 /* crude heuristic */
2272 if (mode->channels[idx].freq < 4000)
5a0ffb5f 2273 if (mode->channels[idx].freq == 2484)
282d5590
JM		 2274 mode->channels[idx].chan = 14;
2275 else
2276 mode->channels[idx].chan = (mode->channels[idx].freq - 2407) / 5;
2277 else
2278 mode->channels[idx].chan = mode->channels[idx].freq/5 - 1000;
2279
2280 if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
2281 mode->channels[idx].flag |=
2282 HOSTAPD_CHAN_DISABLED;
2283 if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
2284 mode->channels[idx].flag |=
2285 HOSTAPD_CHAN_PASSIVE_SCAN;
2286 if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS])
2287 mode->channels[idx].flag |=
2288 HOSTAPD_CHAN_NO_IBSS;
2289 if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
2290 mode->channels[idx].flag |=
2291 HOSTAPD_CHAN_RADAR;
2292
2293 if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] &&
2294 !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
2295 mode->channels[idx].max_tx_power =
2296 nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100;
2297
2298 idx++;
2299 }
2300
2301 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
2302 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
2303 nla_len(nl_rate), rate_policy);
2304 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
2305 continue;
2306 mode->num_rates++;
2307 }
2308
2309 mode->rates = calloc(mode->num_rates, sizeof(struct hostapd_rate_data));
2310 if (!mode->rates)
2311 return NL_SKIP;
2312
2313 idx = 0;
2314
2315 nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
2316 nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
2317 nla_len(nl_rate), rate_policy);
2318 if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
2319 continue;
2320 mode->rates[idx].rate = nla_get_u32(tb_rate[NL80211_BITRATE_ATTR_RATE]);
2321
2322 /* crude heuristic */
2323 if (mode->mode == HOSTAPD_MODE_IEEE80211B &&
2324 mode->rates[idx].rate > 200)
2325 mode->mode = HOSTAPD_MODE_IEEE80211G;
2326
2327 if (tb_rate[NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE])
2328 mode->rates[idx].flags |= HOSTAPD_RATE_PREAMBLE2;
2329
2330 idx++;
2331 }
2332 }
2333
2334 return NL_SKIP;
2335}
2336
2337static struct hostapd_hw_modes *
2338wpa_driver_nl80211_add_11b(struct hostapd_hw_modes *modes, u16 *num_modes)
2339{
2340 u16 m;
2341 struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
2342 int i, mode11g_idx = -1;
2343
2344 /* If only 802.11g mode is included, use it to construct matching
2345 * 802.11b mode data. */
2346
2347 for (m = 0; m < *num_modes; m++) {
2348 if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
2349 return modes; /* 802.11b already included */
2350 if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
2351 mode11g_idx = m;
2352 }
2353
2354 if (mode11g_idx < 0)
2355 return modes; /* 2.4 GHz band not supported at all */
2356
2357 nmodes = os_realloc(modes, (*num_modes + 1) * sizeof(*nmodes));
2358 if (nmodes == NULL)
2359 return modes; /* Could not add 802.11b mode */
2360
2361 mode = &nmodes[*num_modes];
2362 os_memset(mode, 0, sizeof(*mode));
2363 (*num_modes)++;
2364 modes = nmodes;
2365
2366 mode->mode = HOSTAPD_MODE_IEEE80211B;
2367
2368 mode11g = &modes[mode11g_idx];
2369 mode->num_channels = mode11g->num_channels;
2370 mode->channels = os_malloc(mode11g->num_channels *
2371 sizeof(struct hostapd_channel_data));
2372 if (mode->channels == NULL) {
2373 (*num_modes)--;
2374 return modes; /* Could not add 802.11b mode */
2375 }
2376 os_memcpy(mode->channels, mode11g->channels,
2377 mode11g->num_channels * sizeof(struct hostapd_channel_data));
2378
2379 mode->num_rates = 0;
2380 mode->rates = os_malloc(4 * sizeof(struct hostapd_rate_data));
2381 if (mode->rates == NULL) {
2382 os_free(mode->channels);
2383 (*num_modes)--;
2384 return modes; /* Could not add 802.11b mode */
2385 }
2386
2387 for (i = 0; i < mode11g->num_rates; i++) {
2388 if (mode11g->rates[i].rate > 110 ||
2389 mode11g->rates[i].flags &
2390 (HOSTAPD_RATE_ERP | HOSTAPD_RATE_OFDM))
2391 continue;
2392 mode->rates[mode->num_rates] = mode11g->rates[i];
2393 mode->num_rates++;
2394 if (mode->num_rates == 4)
2395 break;
2396 }
2397
2398 if (mode->num_rates == 0) {
2399 os_free(mode->channels);
2400 os_free(mode->rates);
2401 (*num_modes)--;
2402 return modes; /* No 802.11b rates */
2403 }
2404
2405 wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
2406 "information");
2407
2408 return modes;
2409}
2410
2411
2412static struct hostapd_hw_modes *
2413wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
2414{
2415 struct wpa_driver_nl80211_data *drv = priv;
2416 struct nl_msg *msg;
2417 struct phy_info_arg result = {
2418 .num_modes = num_modes,
2419 .modes = NULL,
2420 };
2421
2422 *num_modes = 0;
2423 *flags = 0;
2424
2425 msg = nlmsg_alloc();
2426 if (!msg)
2427 return NULL;
2428
2429 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2430 0, NL80211_CMD_GET_WIPHY, 0);
2431
2432 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2433
2434 if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0)
2435 return wpa_driver_nl80211_add_11b(result.modes, num_modes);
2436 nla_put_failure:
2437 return NULL;
2438}
2439
2440
2c2010ac
JM		 2441static int wpa_driver_nl80211_send_frame(struct wpa_driver_nl80211_data *drv,
2442 const void *data, size_t len,
2443 int encrypt)
2444{
2445 __u8 rtap_hdr[] = {
2446 0x00, 0x00, /* radiotap version */
2447 0x0e, 0x00, /* radiotap length */
2448 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */
2449 IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */
2450 0x00, /* padding */
2451 0x00, 0x00, /* RX and TX flags to indicate that */
2452 0x00, 0x00, /* this is the injected frame directly */
2453 };
2454 struct iovec iov[2] = {
2455 {
2456 .iov_base = &rtap_hdr,
2457 .iov_len = sizeof(rtap_hdr),
2458 },
2459 {
2460 .iov_base = (void *) data,
2461 .iov_len = len,
2462 }
2463 };
2464 struct msghdr msg = {
2465 .msg_name = NULL,
2466 .msg_namelen = 0,
2467 .msg_iov = iov,
2468 .msg_iovlen = 2,
2469 .msg_control = NULL,
2470 .msg_controllen = 0,
2471 .msg_flags = 0,
2472 };
2473
2474 if (encrypt)
2475 rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP;
2476
2477 return sendmsg(drv->monitor_sock, &msg, 0);
2478}
2479
2480
2481static int wpa_driver_nl80211_send_mlme(void *priv, const u8 *data,
2482 size_t data_len)
2483{
2484 struct wpa_driver_nl80211_data *drv = priv;
2485 struct ieee80211_mgmt *mgmt;
7a47d567 2486 int encrypt = 1;
2c2010ac
JM		 2487 u16 fc;
2488
2489 mgmt = (struct ieee80211_mgmt *) data;
2490 fc = le_to_host16(mgmt->frame_control);
2491
2492 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
2493 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) {
2494 /*
2495 * Only one of the authentication frame types is encrypted.
2496 * In order for static WEP encryption to work properly (i.e.,
2497 * to not encrypt the frame), we need to tell mac80211 about
2498 * the frames that must not be encrypted.
2499 */
2500 u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
2501 u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction);
7a47d567
JB		 2502 if (auth_alg != WLAN_AUTH_SHARED_KEY || auth_trans != 3)
2503 encrypt = 0;
2c2010ac
JM		 2504 }
2505
7a47d567 2506 return wpa_driver_nl80211_send_frame(drv, data, data_len, encrypt);
2c2010ac
JM		 2507}
2508
2509
b4fd6fab
JM		 2510static int wpa_driver_nl80211_set_beacon_iface(int ifindex, void *priv,
2511 const u8 *head, size_t head_len,
2512 const u8 *tail, size_t tail_len,
2513 int dtim_period)
d2440ba0
JM		 2514{
2515 struct wpa_driver_nl80211_data *drv = priv;
2516 struct nl_msg *msg;
2517 u8 cmd = NL80211_CMD_NEW_BEACON;
2518 int ret;
b4fd6fab
JM		 2519 int beacon_set;
2520#ifdef HOSTAPD
2521 struct i802_bss *bss;
2522
2523 bss = get_bss(drv, ifindex);
2524 if (bss == NULL)
2525 return -ENOENT;
2526 beacon_set = bss->beacon_set;
2527#else /* HOSTAPD */
2528 beacon_set = drv->beacon_set;
2529#endif /* HOSTAPD */
d2440ba0
JM		 2530
2531 msg = nlmsg_alloc();
2532 if (!msg)
2533 return -ENOMEM;
2534
2535 wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)",
b4fd6fab
JM		 2536 beacon_set);
2537 if (beacon_set)
d2440ba0
JM		 2538 cmd = NL80211_CMD_SET_BEACON;
2539
2540 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2541 0, cmd, 0);
2542 NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, head_len, head);
2543 NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, tail_len, tail);
b4fd6fab 2544 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
d2440ba0
JM		 2545 if (!drv->beacon_int)
2546 drv->beacon_int = 100;
2547 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, drv->beacon_int);
2548 NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, dtim_period);
2549
2550 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2551 if (ret) {
2552 wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)",
2553 ret, strerror(-ret));
b4fd6fab
JM		 2554 } else {
2555#ifdef HOSTAPD
2556 bss->beacon_set = 1;
2557#else /* HOSTAPD */
d2440ba0 2558 drv->beacon_set = 1;
b4fd6fab
JM		 2559#endif /* HOSTAPD */
2560 }
d2440ba0
JM		 2561 return ret;
2562 nla_put_failure:
2563 return -ENOBUFS;
2564}
2565
2566
2567static int wpa_driver_nl80211_set_beacon_int(void *priv, int value)
2568{
2569 struct wpa_driver_nl80211_data *drv = priv;
2570 struct nl_msg *msg;
2571
2572 drv->beacon_int = value;
2573
b4fd6fab
JM		 2574#ifdef HOSTAPD
2575 if (!drv->bss.beacon_set)
2576 return 0;
2577#else /* HOSTAPD */
d2440ba0
JM		 2578 if (!drv->beacon_set)
2579 return 0;
b4fd6fab 2580#endif /* HOSTAPD */
d2440ba0
JM		 2581
2582 msg = nlmsg_alloc();
2583 if (!msg)
2584 return -ENOMEM;
2585
b4fd6fab 2586 wpa_printf(MSG_DEBUG, "nl80211: Set beacon interval %d", value);
d2440ba0
JM		 2587 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2588 0, NL80211_CMD_SET_BEACON, 0);
2589 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2590
2591 NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, value);
2592
2593 return send_and_recv_msgs(drv, msg, NULL, NULL);
2594 nla_put_failure:
2595 return -ENOBUFS;
2596}
2597
2598
f019981a
JM		 2599static int wpa_driver_nl80211_set_freq(struct wpa_driver_nl80211_data *drv,
2600 int freq, int ht_enabled,
2601 int sec_channel_offset)
1581b38b
JM		 2602{
2603 struct nl_msg *msg;
d2440ba0 2604 int ret;
1581b38b
JM		 2605
2606 msg = nlmsg_alloc();
2607 if (!msg)
2608 return -1;
2609
2610 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
2611 NL80211_CMD_SET_WIPHY, 0);
2612
2613 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
f019981a
JM		 2614 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
2615 if (ht_enabled) {
2616 switch (sec_channel_offset) {
2617 case -1:
2618 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2619 NL80211_CHAN_HT40MINUS);
2620 break;
2621 case 1:
2622 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2623 NL80211_CHAN_HT40PLUS);
2624 break;
2625 default:
2626 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2627 NL80211_CHAN_HT20);
2628 break;
2629 }
2630 }
1581b38b 2631
d2440ba0
JM		 2632 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2633 if (ret == 0)
1581b38b 2634 return 0;
f019981a
JM		 2635 wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): "
2636 "%d (%s)", freq, ret, strerror(-ret));
1581b38b
JM		 2637nla_put_failure:
2638 return -1;
2639}
2640
0f4e8b4f
JM		 2641
2642static int wpa_driver_nl80211_sta_add(const char *ifname, void *priv,
2643 struct hostapd_sta_add_params *params)
2644{
2645 struct wpa_driver_nl80211_data *drv = priv;
2646 struct nl_msg *msg;
2647 int ret = -ENOBUFS;
2648
2649 msg = nlmsg_alloc();
2650 if (!msg)
2651 return -ENOMEM;
2652
2653 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2654 0, NL80211_CMD_NEW_STATION, 0);
2655
2656 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(ifname));
2657 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr);
2658 NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid);
2659 NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len,
2660 params->supp_rates);
2661 NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL,
2662 params->listen_interval);
2663
2664#ifdef CONFIG_IEEE80211N
2665 if (params->ht_capabilities) {
2666 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY,
2667 params->ht_capabilities->length,
2668 &params->ht_capabilities->data);
2669 }
2670#endif /* CONFIG_IEEE80211N */
2671
2672 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2673 if (ret)
2674 wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_NEW_STATION "
2675 "result: %d (%s)", ret, strerror(-ret));
2676 if (ret == -EEXIST)
2677 ret = 0;
2678 nla_put_failure:
2679 return ret;
2680}
2681
2682
2683static int wpa_driver_nl80211_sta_remove(void *priv, const u8 *addr)
2684{
2685 struct wpa_driver_nl80211_data *drv = priv;
2686 struct nl_msg *msg;
2687 int ret;
2688
2689 msg = nlmsg_alloc();
2690 if (!msg)
2691 return -ENOMEM;
2692
2693 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2694 0, NL80211_CMD_DEL_STATION, 0);
2695
2696 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
2697 if_nametoindex(drv->ifname));
2698 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
2699
2700 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2701 if (ret == -ENOENT)
2702 return 0;
2703 return ret;
2704 nla_put_failure:
2705 return -ENOBUFS;
2706}
2707
f019981a
JM		 2708#endif /* CONFIG_AP || HOSTAPD */
2709
2710
2711#ifdef CONFIG_AP
2712
2713static int wpa_driver_nl80211_set_beacon(void *priv,
2714 const u8 *head, size_t head_len,
2715 const u8 *tail, size_t tail_len,
2716 int dtim_period)
2717{
2718 struct wpa_driver_nl80211_data *drv = priv;
2719 return wpa_driver_nl80211_set_beacon_iface(drv->ifindex, priv,
2720 head, head_len,
2721 tail, tail_len,
2722 dtim_period);
2723}
2724
2135f224
JM		 2725#endif /* CONFIG_AP */
2726
2727#if defined(CONFIG_AP) || defined(HOSTAPD)
1581b38b 2728
0915d02c
JM		 2729static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
2730 int ifidx)
2731{
2732 struct nl_msg *msg;
2733
2135f224
JM		 2734#ifdef HOSTAPD
2735 /* stop listening for EAPOL on this interface */
2736 del_ifidx(drv, ifidx);
2737#endif /* HOSTAPD */
2738
0915d02c
JM		 2739 msg = nlmsg_alloc();
2740 if (!msg)
2741 goto nla_put_failure;
2742
2743 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2744 0, NL80211_CMD_DEL_INTERFACE, 0);
2745 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx);
2746
2747 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
2748 return;
2749 nla_put_failure:
2750 wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d).\n",
2751 ifidx);
2752}
2753
2754
a35187e7
KH		 2755static int nl80211_create_iface_once(struct wpa_driver_nl80211_data *drv,
2756 const char *ifname,
2757 enum nl80211_iftype iftype,
2758 const u8 *addr)
0915d02c
JM		 2759{
2760 struct nl_msg *msg, *flags = NULL;
2761 int ifidx;
2762 int ret = -ENOBUFS;
2763
2764 msg = nlmsg_alloc();
2765 if (!msg)
2766 return -1;
2767
2768 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
2769 0, NL80211_CMD_NEW_INTERFACE, 0);
2770 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
2771 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname);
2772 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype);
2773
2774 if (iftype == NL80211_IFTYPE_MONITOR) {
2775 int err;
2776
2777 flags = nlmsg_alloc();
2778 if (!flags)
2779 goto nla_put_failure;
2780
2781 NLA_PUT_FLAG(flags, NL80211_MNTR_FLAG_COOK_FRAMES);
2782
2783 err = nla_put_nested(msg, NL80211_ATTR_MNTR_FLAGS, flags);
2784
2785 nlmsg_free(flags);
2786
2787 if (err)
2788 goto nla_put_failure;
2789 }
2790
2791 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
2792 if (ret) {
2793 nla_put_failure:
a35187e7
KH		 2794 wpa_printf(MSG_ERROR, "Failed to create interface %s: %d (%s)",
2795 ifname, ret, strerror(-ret));
0915d02c
JM		 2796 return ret;
2797 }
2798
2799 ifidx = if_nametoindex(ifname);
2800
2801 if (ifidx <= 0)
2802 return -1;
2803
2135f224
JM		 2804#ifdef HOSTAPD
2805 /* start listening for EAPOL on this interface */
2806 add_ifidx(drv, ifidx);
2807
41d931ee
JM		 2808 if (addr && iftype == NL80211_IFTYPE_AP &&
2809 set_ifhwaddr(drv, ifname, addr)) {
2810 nl80211_remove_iface(drv, ifidx);
2811 return -1;
2135f224
JM		 2812 }
2813#endif /* HOSTAPD */
2814
0915d02c
JM		 2815 return ifidx;
2816}
a35187e7
KH		 2817static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
2818 const char *ifname, enum nl80211_iftype iftype,
2819 const u8 *addr)
2820{
2821 int ret;
2822
2823 ret = nl80211_create_iface_once(drv, ifname, iftype, addr);
2824
2825 /* if error occured and interface exists already */
2826 if (ret == -ENFILE && if_nametoindex(ifname)) {
2827 wpa_printf(MSG_INFO, "Try to remove and re-create %s", ifname);
2828
2829 /* Try to remove the interface that was already there. */
2830 nl80211_remove_iface(drv, if_nametoindex(ifname));
2831
2832 /* Try to create the interface again */
2833 ret = nl80211_create_iface_once(drv, ifname, iftype, addr);
2834 }
2835
2836 return ret;
2837}
0915d02c 2838
2135f224
JM		 2839#endif /* CONFIG_AP || HOSTAPD */
2840
2841#ifdef CONFIG_AP
0915d02c 2842
0915d02c
JM		 2843void ap_tx_status(void *ctx, const u8 *addr,
2844 const u8 *buf, size_t len, int ack);
3a57305f 2845void ap_rx_from_unknown_sta(void *ctx, struct ieee80211_hdr *hdr, size_t len);
0915d02c
JM		 2846void ap_mgmt_rx(void *ctx, u8 *buf, size_t len, u16 stype,
2847 struct hostapd_frame_info *fi);
2848void ap_mgmt_tx_cb(void *ctx, u8 *buf, size_t len, u16 stype, int ok);
2849
072ad14c
JM		 2850#endif /* CONFIG_AP */
2851
2852#if defined(CONFIG_AP) || defined(HOSTAPD)
0915d02c
JM		 2853
2854static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok)
2855{
2856 struct ieee80211_hdr *hdr;
2857 u16 fc, type, stype;
2858
2859 hdr = (struct ieee80211_hdr *) buf;
2860 fc = le_to_host16(hdr->frame_control);
2861
2862 type = WLAN_FC_GET_TYPE(fc);
2863 stype = WLAN_FC_GET_STYPE(fc);
2864
2865 switch (type) {
2866 case WLAN_FC_TYPE_MGMT:
2867 wpa_printf(MSG_DEBUG, "MGMT (TX callback) %s",
2868 ok ? "ACK" : "fail");
072ad14c
JM		 2869#ifdef HOSTAPD
2870 hostapd_mgmt_tx_cb(ctx, buf, len, stype, ok);
2871#else /* HOSTAPD */
0915d02c 2872 ap_mgmt_tx_cb(ctx, buf, len, stype, ok);
072ad14c 2873#endif /* HOSTAPD */
0915d02c
JM		 2874 break;
2875 case WLAN_FC_TYPE_CTRL:
2876 wpa_printf(MSG_DEBUG, "CTRL (TX callback) %s",
2877 ok ? "ACK" : "fail");
2878 break;
2879 case WLAN_FC_TYPE_DATA:
072ad14c
JM		 2880#ifdef HOSTAPD
2881 hostapd_tx_status(ctx, hdr->addr1, buf, len, ok);
2882#else /* HOSTAPD */
0915d02c 2883 ap_tx_status(ctx, hdr->addr1, buf, len, ok);
072ad14c 2884#endif /* HOSTAPD */
0915d02c
JM		 2885 break;
2886 default:
2887 wpa_printf(MSG_DEBUG, "unknown TX callback frame type %d",
2888 type);
2889 break;
2890 }
2891}
2892
2893
4b9841d3
JM		 2894static void from_unknown_sta(struct wpa_driver_nl80211_data *drv,
2895 struct ieee80211_hdr *hdr, size_t len)
0915d02c 2896{
7da3abe7 2897#ifdef HOSTAPD
4b9841d3
JM		 2898 hostapd_rx_from_unknown_sta(drv->ctx, hdr, len);
2899#else /* HOSTAPD */
3a57305f 2900 ap_rx_from_unknown_sta(drv->ctx, hdr, len);
7da3abe7 2901#endif /* HOSTAPD */
4b9841d3 2902}
0915d02c 2903
4b9841d3
JM		 2904
2905static void handle_frame(struct wpa_driver_nl80211_data *drv,
2906 u8 *buf, size_t len,
2907 struct hostapd_frame_info *hfi)
2908{
2909 struct ieee80211_hdr *hdr;
2910 u16 fc, stype;
0915d02c
JM		 2911
2912 hdr = (struct ieee80211_hdr *) buf;
2913 fc = le_to_host16(hdr->frame_control);
0915d02c
JM		 2914 stype = WLAN_FC_GET_STYPE(fc);
2915
4b9841d3 2916 switch (WLAN_FC_GET_TYPE(fc)) {
0915d02c
JM		 2917 case WLAN_FC_TYPE_MGMT:
2918 if (stype != WLAN_FC_STYPE_BEACON &&
2919 stype != WLAN_FC_STYPE_PROBE_REQ)
2920 wpa_printf(MSG_MSGDUMP, "MGMT");
7da3abe7 2921#ifdef HOSTAPD
4b9841d3 2922 hostapd_mgmt_rx(drv->ctx, buf, len, stype, hfi);
7da3abe7 2923#else /* HOSTAPD */
4b9841d3 2924 ap_mgmt_rx(drv->ctx, buf, len, stype, hfi);
7da3abe7 2925#endif /* HOSTAPD */
0915d02c
JM		 2926 break;
2927 case WLAN_FC_TYPE_CTRL:
2928 /* can only get here with PS-Poll frames */
2929 wpa_printf(MSG_DEBUG, "CTRL");
4b9841d3 2930 from_unknown_sta(drv, hdr, len);
0915d02c
JM		 2931 break;
2932 case WLAN_FC_TYPE_DATA:
4b9841d3 2933 from_unknown_sta(drv, hdr, len);
0915d02c
JM		 2934 break;
2935 }
2936}
2937
2938
2939static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx)
2940{
2941 struct wpa_driver_nl80211_data *drv = eloop_ctx;
2942 int len;
2943 unsigned char buf[3000];
2944 struct ieee80211_radiotap_iterator iter;
2945 int ret;
2946 struct hostapd_frame_info hfi;
4b9841d3 2947 int injected = 0, failed = 0, rxflags = 0;
0915d02c
JM		 2948
2949 len = recv(sock, buf, sizeof(buf), 0);
2950 if (len < 0) {
2951 perror("recv");
2952 return;
2953 }
2954
2955 if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) {
2956 printf("received invalid radiotap frame\n");
2957 return;
2958 }
2959
2960 memset(&hfi, 0, sizeof(hfi));
2961
2962 while (1) {
2963 ret = ieee80211_radiotap_iterator_next(&iter);
2964 if (ret == -ENOENT)
2965 break;
2966 if (ret) {
2967 printf("received invalid radiotap frame (%d)\n", ret);
2968 return;
2969 }
2970 switch (iter.this_arg_index) {
2971 case IEEE80211_RADIOTAP_FLAGS:
2972 if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS)
2973 len -= 4;
2974 break;
2975 case IEEE80211_RADIOTAP_RX_FLAGS:
2976 rxflags = 1;
2977 break;
2978 case IEEE80211_RADIOTAP_TX_FLAGS:
2979 injected = 1;
2980 failed = le_to_host16((*(uint16_t *) iter.this_arg)) &
2981 IEEE80211_RADIOTAP_F_TX_FAIL;
2982 break;
2983 case IEEE80211_RADIOTAP_DATA_RETRIES:
2984 break;
2985 case IEEE80211_RADIOTAP_CHANNEL:
2986 /* TODO convert from freq/flags to channel number
2987 hfi.channel = XXX;
2988 hfi.phytype = XXX;
2989 */
2990 break;
2991 case IEEE80211_RADIOTAP_RATE:
2992 hfi.datarate = *iter.this_arg * 5;
2993 break;
2994 case IEEE80211_RADIOTAP_DB_ANTSIGNAL:
2995 hfi.ssi_signal = *iter.this_arg;
2996 break;
2997 }
2998 }
2999
3000 if (rxflags && injected)
3001 return;
3002
3003 if (!injected)
4b9841d3
JM		 3004 handle_frame(drv, buf + iter.max_length,
3005 len - iter.max_length, &hfi);
0915d02c 3006 else
4b9841d3
JM		 3007 handle_tx_callback(drv->ctx, buf + iter.max_length,
3008 len - iter.max_length, !failed);
0915d02c
JM		 3009}
3010
3011
3012/*
3013 * we post-process the filter code later and rewrite
3014 * this to the offset to the last instruction
3015 */
3016#define PASS 0xFF
3017#define FAIL 0xFE
3018
3019static struct sock_filter msock_filter_insns[] = {
3020 /*
3021 * do a little-endian load of the radiotap length field
3022 */
3023 /* load lower byte into A */
3024 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2),
3025 /* put it into X (== index register) */
3026 BPF_STMT(BPF_MISC| BPF_TAX, 0),
3027 /* load upper byte into A */
3028 BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3),
3029 /* left-shift it by 8 */
3030 BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8),
3031 /* or with X */
3032 BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0),
3033 /* put result into X */
3034 BPF_STMT(BPF_MISC| BPF_TAX, 0),
3035
3036 /*
3037 * Allow management frames through, this also gives us those
3038 * management frames that we sent ourselves with status
3039 */
3040 /* load the lower byte of the IEEE 802.11 frame control field */
3041 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
3042 /* mask off frame type and version */
3043 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF),
3044 /* accept frame if it's both 0, fall through otherwise */
3045 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0),
3046
3047 /*
3048 * TODO: add a bit to radiotap RX flags that indicates
3049 * that the sending station is not associated, then
3050 * add a filter here that filters on our DA and that flag
3051 * to allow us to deauth frames to that bad station.
3052 *
3053 * Not a regression -- we didn't do it before either.
3054 */
3055
3056#if 0
3057 /*
3058 * drop non-data frames, WDS frames
3059 */
3060 /* load the lower byte of the frame control field */
3061 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
3062 /* mask off QoS bit */
3063 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c),
3064 /* drop non-data frames */
3065 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL),
3066 /* load the upper byte of the frame control field */
3067 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
3068 /* mask off toDS/fromDS */
3069 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03),
3070 /* drop WDS frames */
3071 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, FAIL, 0),
3072#endif
3073
3074 /*
3075 * add header length to index
3076 */
3077 /* load the lower byte of the frame control field */
3078 BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
3079 /* mask off QoS bit */
3080 BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80),
3081 /* right shift it by 6 to give 0 or 2 */
3082 BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6),
3083 /* add data frame header length */
3084 BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24),
3085 /* add index, was start of 802.11 header */
3086 BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0),
3087 /* move to index, now start of LL header */
3088 BPF_STMT(BPF_MISC | BPF_TAX, 0),
3089
3090 /*
3091 * Accept empty data frames, we use those for
3092 * polling activity.
3093 */
3094 BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0),
3095 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0),
3096
3097 /*
3098 * Accept EAPOL frames
3099 */
3100 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0),
3101 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL),
3102 BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4),
3103 BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL),
3104
3105 /* keep these last two statements or change the code below */
3106 /* return 0 == "DROP" */
3107 BPF_STMT(BPF_RET | BPF_K, 0),
3108 /* return ~0 == "keep all" */
3109 BPF_STMT(BPF_RET | BPF_K, ~0),
3110};
3111
3112static struct sock_fprog msock_filter = {
3113 .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]),
3114 .filter = msock_filter_insns,
3115};
3116
3117
3118static int add_monitor_filter(int s)
3119{
3120 int idx;
3121
3122 /* rewrite all PASS/FAIL jump offsets */
3123 for (idx = 0; idx < msock_filter.len; idx++) {
3124 struct sock_filter *insn = &msock_filter_insns[idx];
3125
3126 if (BPF_CLASS(insn->code) == BPF_JMP) {
3127 if (insn->code == (BPF_JMP|BPF_JA)) {
3128 if (insn->k == PASS)
3129 insn->k = msock_filter.len - idx - 2;
3130 else if (insn->k == FAIL)
3131 insn->k = msock_filter.len - idx - 3;
3132 }
3133
3134 if (insn->jt == PASS)
3135 insn->jt = msock_filter.len - idx - 2;
3136 else if (insn->jt == FAIL)
3137 insn->jt = msock_filter.len - idx - 3;
3138
3139 if (insn->jf == PASS)
3140 insn->jf = msock_filter.len - idx - 2;
3141 else if (insn->jf == FAIL)
3142 insn->jf = msock_filter.len - idx - 3;
3143 }
3144 }
3145
3146 if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER,
3147 &msock_filter, sizeof(msock_filter))) {
3148 perror("SO_ATTACH_FILTER");
3149 return -1;
3150 }
3151
3152 return 0;
3153}
3154
3155
460456f8
JM		 3156static void nl80211_remove_monitor_interface(
3157 struct wpa_driver_nl80211_data *drv)
3158{
3159 if (drv->monitor_ifidx >= 0) {
3160 nl80211_remove_iface(drv, drv->monitor_ifidx);
3161 drv->monitor_ifidx = -1;
3162 }
3163}
3164
3165
0915d02c
JM		 3166static int
3167nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv)
3168{
3169 char buf[IFNAMSIZ];
3170 struct sockaddr_ll ll;
3171 int optval;
3172 socklen_t optlen;
0915d02c
JM		 3173
3174 snprintf(buf, IFNAMSIZ, "mon.%s", drv->ifname);
3175 buf[IFNAMSIZ - 1] = '\0';
3176
3177 drv->monitor_ifidx =
2135f224 3178 nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL);
0915d02c
JM		 3179
3180 if (drv->monitor_ifidx < 0)
3181 return -1;
3182
2135f224 3183 if (hostapd_set_iface_flags(drv, buf, 1))
0915d02c 3184 goto error;
0915d02c
JM		 3185
3186 memset(&ll, 0, sizeof(ll));
3187 ll.sll_family = AF_PACKET;
3188 ll.sll_ifindex = drv->monitor_ifidx;
3189 drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
3190 if (drv->monitor_sock < 0) {
3191 perror("socket[PF_PACKET,SOCK_RAW]");
3192 goto error;
3193 }
3194
3195 if (add_monitor_filter(drv->monitor_sock)) {
3196 wpa_printf(MSG_INFO, "Failed to set socket filter for monitor "
3197 "interface; do filtering in user space");
3198 /* This works, but will cost in performance. */
3199 }
3200
2135f224 3201 if (bind(drv->monitor_sock, (struct sockaddr *) &ll, sizeof(ll)) < 0) {
0915d02c
JM		 3202 perror("monitor socket bind");
3203 goto error;
3204 }
3205
3206 optlen = sizeof(optval);
3207 optval = 20;
3208 if (setsockopt
3209 (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) {
3210 perror("Failed to set socket priority");
3211 goto error;
3212 }
3213
3214 if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read,
3215 drv, NULL)) {
3216 printf("Could not register monitor read socket\n");
3217 goto error;
3218 }
3219
3220 return 0;
3221 error:
460456f8 3222 nl80211_remove_monitor_interface(drv);
0915d02c
JM		 3223 return -1;
3224}
3225
db149ac9
JM		 3226
3227static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
3228
3229static int wpa_driver_nl80211_hapd_send_eapol(
3230 void *priv, const u8 *addr, const u8 *data,
3231 size_t data_len, int encrypt, const u8 *own_addr)
3232{
3233 struct wpa_driver_nl80211_data *drv = priv;
3234 struct ieee80211_hdr *hdr;
3235 size_t len;
3236 u8 *pos;
3237 int res;
3238#if 0 /* FIX */
3239 int qos = sta->flags & WLAN_STA_WME;
3240#else
3241 int qos = 0;
3242#endif
3243
3244 len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 +
3245 data_len;
3246 hdr = os_zalloc(len);
3247 if (hdr == NULL) {
3248 printf("malloc() failed for i802_send_data(len=%lu)\n",
3249 (unsigned long) len);
3250 return -1;
3251 }
3252
3253 hdr->frame_control =
3254 IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA);
3255 hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS);
3256 if (encrypt)
3257 hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP);
3258#if 0 /* To be enabled if qos determination is added above */
3259 if (qos) {
3260 hdr->frame_control |=
3261 host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4);
3262 }
3263#endif
3264
3265 memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN);
3266 memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
3267 memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
3268 pos = (u8 *) (hdr + 1);
3269
3270#if 0 /* To be enabled if qos determination is added above */
3271 if (qos) {
3272 /* add an empty QoS header if needed */
3273 pos[0] = 0;
3274 pos[1] = 0;
3275 pos += 2;
3276 }
3277#endif
3278
3279 memcpy(pos, rfc1042_header, sizeof(rfc1042_header));
3280 pos += sizeof(rfc1042_header);
3281 WPA_PUT_BE16(pos, ETH_P_PAE);
3282 pos += 2;
3283 memcpy(pos, data, data_len);
3284
3285 res = wpa_driver_nl80211_send_frame(drv, (u8 *) hdr, len, encrypt);
3286 if (res < 0) {
3287 wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - "
3288 "failed: %d (%s)",
3289 (unsigned long) len, errno, strerror(errno));
3290 }
3291 free(hdr);
3292
3293 return res;
3294}
3295
a8d6ffa4 3296
7e76ee9c
JM		 3297static u32 sta_flags_nl80211(int flags)
3298{
3299 u32 f = 0;
3300
3301 if (flags & WLAN_STA_AUTHORIZED)
3302 f |= BIT(NL80211_STA_FLAG_AUTHORIZED);
3303 if (flags & WLAN_STA_WMM)
3304 f |= BIT(NL80211_STA_FLAG_WME);
3305 if (flags & WLAN_STA_SHORT_PREAMBLE)
3306 f |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
3307 if (flags & WLAN_STA_MFP)
3308 f |= BIT(NL80211_STA_FLAG_MFP);
3309
3310 return f;
3311}
3312
3313
a8d6ffa4
JM		 3314static int wpa_driver_nl80211_sta_set_flags(void *priv, const u8 *addr,
3315 int total_flags, int flags_or,
3316 int flags_and)
3317{
3318 struct wpa_driver_nl80211_data *drv = priv;
3319 struct nl_msg *msg, *flags = NULL;
7e76ee9c 3320 struct nl80211_sta_flag_update upd;
a8d6ffa4
JM		 3321
3322 msg = nlmsg_alloc();
3323 if (!msg)
3324 return -ENOMEM;
3325
3326 flags = nlmsg_alloc();
3327 if (!flags) {
3328 nlmsg_free(msg);
3329 return -ENOMEM;
3330 }
3331
3332 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3333 0, NL80211_CMD_SET_STATION, 0);
3334
3335 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
3336 if_nametoindex(drv->ifname));
3337 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
3338
7e76ee9c
JM		 3339 /*
3340 * Backwards compatibility version using NL80211_ATTR_STA_FLAGS. This
3341 * can be removed eventually.
3342 */
a8d6ffa4
JM		 3343 if (total_flags & WLAN_STA_AUTHORIZED)
3344 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_AUTHORIZED);
3345
3346 if (total_flags & WLAN_STA_WMM)
3347 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_WME);
3348
3349 if (total_flags & WLAN_STA_SHORT_PREAMBLE)
3350 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_SHORT_PREAMBLE);
3351
3352 if (total_flags & WLAN_STA_MFP)
3353 NLA_PUT_FLAG(flags, NL80211_STA_FLAG_MFP);
3354
3355 if (nla_put_nested(msg, NL80211_ATTR_STA_FLAGS, flags))
3356 goto nla_put_failure;
3357
7e76ee9c
JM		 3358 os_memset(&upd, 0, sizeof(upd));
3359 upd.mask = sta_flags_nl80211(flags_or | ~flags_and);
3360 upd.set = sta_flags_nl80211(flags_or);
3361 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
3362
a8d6ffa4
JM		 3363 nlmsg_free(flags);
3364
3365 return send_and_recv_msgs(drv, msg, NULL, NULL);
3366 nla_put_failure:
3367 nlmsg_free(flags);
3368 return -ENOBUFS;
3369}
3370
2135f224
JM		 3371#endif /* CONFIG_AP || HOSTAPD */
3372
3373#ifdef CONFIG_AP
0915d02c 3374
1581b38b
JM		 3375static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv,
3376 struct wpa_driver_associate_params *params)
3377{
3378 if (wpa_driver_nl80211_set_mode(drv, params->mode) ||
f019981a 3379 wpa_driver_nl80211_set_freq(drv, params->freq, 0, 0)) {
460456f8 3380 nl80211_remove_monitor_interface(drv);
1581b38b 3381 return -1;
0915d02c 3382 }
1581b38b
JM		 3383
3384 /* TODO: setup monitor interface (and add code somewhere to remove this
3385 * when AP mode is stopped; associate with mode != 2 or drv_deinit) */
1581b38b
JM		 3386
3387 return 0;
3388}
3389#endif /* CONFIG_AP */
3390
3391
c811d5bc 3392#ifndef HOSTAPD
cfaab580
ZY		 3393static int wpa_driver_nl80211_connect(
3394 struct wpa_driver_nl80211_data *drv,
3395 struct wpa_driver_associate_params *params)
3396{
3397 struct nl_msg *msg;
3398 enum nl80211_auth_type type;
3399 int ret = 0;
3400
3401 msg = nlmsg_alloc();
3402 if (!msg)
3403 return -1;
3404
3405 wpa_printf(MSG_DEBUG, "nl80211: Connect (ifindex=%d)", drv->ifindex);
3406 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
3407 NL80211_CMD_CONNECT, 0);
3408
3409 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3410 if (params->bssid) {
3411 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
3412 MAC2STR(params->bssid));
3413 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
3414 }
3415 if (params->freq) {
3416 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
3417 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
3418 }
3419 if (params->ssid) {
3420 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
3421 params->ssid, params->ssid_len);
3422 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
3423 params->ssid);
3424 if (params->ssid_len > sizeof(drv->ssid))
3425 goto nla_put_failure;
3426 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
3427 drv->ssid_len = params->ssid_len;
3428 }
3429 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
3430 if (params->wpa_ie)
3431 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
3432 params->wpa_ie);
3433
3434 if (params->auth_alg & AUTH_ALG_OPEN_SYSTEM)
3435 type = NL80211_AUTHTYPE_OPEN_SYSTEM;
3436 else if (params->auth_alg & AUTH_ALG_SHARED_KEY)
3437 type = NL80211_AUTHTYPE_SHARED_KEY;
3438 else if (params->auth_alg & AUTH_ALG_LEAP)
3439 type = NL80211_AUTHTYPE_NETWORK_EAP;
3440 else if (params->auth_alg & AUTH_ALG_FT)
3441 type = NL80211_AUTHTYPE_FT;
3442 else
3443 goto nla_put_failure;
3444
3445 wpa_printf(MSG_DEBUG, " * Auth Type %d", type);
3446 NLA_PUT_U32(msg, NL80211_ATTR_AUTH_TYPE, type);
3447
3448 if (params->wpa_ie && params->wpa_ie_len) {
3449 enum nl80211_wpa_versions ver;
3450
3451 if (params->wpa_ie[0] == WLAN_EID_RSN)
3452 ver = NL80211_WPA_VERSION_2;
3453 else
3454 ver = NL80211_WPA_VERSION_1;
3455
3456 wpa_printf(MSG_DEBUG, " * WPA Version %d", ver);
3457 NLA_PUT_U32(msg, NL80211_ATTR_WPA_VERSIONS, ver);
3458 }
3459
3460 if (params->pairwise_suite != CIPHER_NONE) {
3461 int cipher = IW_AUTH_CIPHER_NONE;
3462
3463 switch (params->pairwise_suite) {
3464 case CIPHER_WEP40:
3465 cipher = WLAN_CIPHER_SUITE_WEP40;
3466 break;
3467 case CIPHER_WEP104:
3468 cipher = WLAN_CIPHER_SUITE_WEP104;
3469 break;
3470 case CIPHER_CCMP:
3471 cipher = WLAN_CIPHER_SUITE_CCMP;
3472 break;
3473 case CIPHER_TKIP:
3474 default:
3475 cipher = WLAN_CIPHER_SUITE_TKIP;
3476 break;
3477 }
3478 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITES_PAIRWISE, cipher);
3479 }
3480
3481 if (params->group_suite != CIPHER_NONE) {
3482 int cipher = IW_AUTH_CIPHER_NONE;
3483
3484 switch (params->group_suite) {
3485 case CIPHER_WEP40:
3486 cipher = WLAN_CIPHER_SUITE_WEP40;
3487 break;
3488 case CIPHER_WEP104:
3489 cipher = WLAN_CIPHER_SUITE_WEP104;
3490 break;
3491 case CIPHER_CCMP:
3492 cipher = WLAN_CIPHER_SUITE_CCMP;
3493 break;
3494 case CIPHER_TKIP:
3495 default:
3496 cipher = WLAN_CIPHER_SUITE_TKIP;
3497 break;
3498 }
3499 NLA_PUT_U32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, cipher);
3500 }
3501
3502 if (params->key_mgmt_suite == KEY_MGMT_802_1X ||
3503 params->key_mgmt_suite == KEY_MGMT_PSK) {
3504 int mgmt = WLAN_AKM_SUITE_PSK;
3505
3506 switch (params->key_mgmt_suite) {
3507 case KEY_MGMT_802_1X:
3508 mgmt = WLAN_AKM_SUITE_8021X;
3509 break;
3510 case KEY_MGMT_PSK:
3511 default:
3512 mgmt = WLAN_AKM_SUITE_PSK;
3513 break;
3514 }
3515 NLA_PUT_U32(msg, NL80211_ATTR_AKM_SUITES, mgmt);
3516 }
3517
3518 ret = nl80211_set_conn_keys(params, msg);
3519 if (ret)
3520 goto nla_put_failure;
3521
3522 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3523 msg = NULL;
3524 if (ret) {
3525 wpa_printf(MSG_DEBUG, "nl80211: MLME connect failed: ret=%d "
3526 "(%s)", ret, strerror(-ret));
3527 goto nla_put_failure;
3528 }
3529 ret = 0;
3530 wpa_printf(MSG_DEBUG, "nl80211: Connect request send successfully");
3531
3532nla_put_failure:
3533 nlmsg_free(msg);
3534 return ret;
3535
3536}
3537
3538
c2a04078
JM		 3539static int wpa_driver_nl80211_associate(
3540 void *priv, struct wpa_driver_associate_params *params)
3541{
3542 struct wpa_driver_nl80211_data *drv = priv;
3543 int ret = -1;
3544 struct nl_msg *msg;
3545
1581b38b
JM		 3546#ifdef CONFIG_AP
3547 if (params->mode == 2)
3548 return wpa_driver_nl80211_ap(drv, params);
3549#endif /* CONFIG_AP */
3550
cfaab580
ZY		 3551 if (!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))
3552 return wpa_driver_nl80211_connect(drv, params);
3553
37b7d082 3554#ifndef NO_WEXT
36b15723
JM		 3555 wpa_driver_nl80211_set_auth_param(drv, IW_AUTH_DROP_UNENCRYPTED,
3556 params->drop_unencrypted);
37b7d082 3557#endif /* NO_WEXT */
36b15723 3558
c2a04078
JM		 3559 drv->associated = 0;
3560
3561 msg = nlmsg_alloc();
3562 if (!msg)
3563 return -1;
3564
3565 wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)",
3566 drv->ifindex);
3567 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
3568 NL80211_CMD_ASSOCIATE, 0);
3569
3570 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3571 if (params->bssid) {
3572 wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
3573 MAC2STR(params->bssid));
3574 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
3575 }
3576 if (params->freq) {
3577 wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
3578 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
3579 }
3580 if (params->ssid) {
3581 wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
3582 params->ssid, params->ssid_len);
3583 NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
3584 params->ssid);
fd05d64e
JM		 3585 if (params->ssid_len > sizeof(drv->ssid))
3586 goto nla_put_failure;
3587 os_memcpy(drv->ssid, params->ssid, params->ssid_len);
3588 drv->ssid_len = params->ssid_len;
c2a04078
JM		 3589 }
3590 wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
3591 if (params->wpa_ie)
3592 NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
3593 params->wpa_ie);
3594
e572fa33
JM		 3595#ifdef CONFIG_IEEE80211W
3596 if (params->mgmt_frame_protection == MGMT_FRAME_PROTECTION_REQUIRED)
3597 NLA_PUT_U32(msg, NL80211_ATTR_USE_MFP, NL80211_MFP_REQUIRED);
3598#endif /* CONFIG_IEEE80211W */
3599
01652550
JM		 3600 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT);
3601
62fa124c
JM		 3602 if (params->prev_bssid) {
3603 wpa_printf(MSG_DEBUG, " * prev_bssid=" MACSTR,
3604 MAC2STR(params->prev_bssid));
3605 NLA_PUT(msg, NL80211_ATTR_PREV_BSSID, ETH_ALEN,
3606 params->prev_bssid);
3607 }
3608
c2a04078
JM		 3609 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3610 msg = NULL;
3611 if (ret) {
3612 wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
3613 "(%s)", ret, strerror(-ret));
3614 goto nla_put_failure;
3615 }
3616 ret = 0;
3617 wpa_printf(MSG_DEBUG, "nl80211: Association request send "
3618 "successfully");
3619
3620nla_put_failure:
3621 nlmsg_free(msg);
3622 return ret;
3623}
c811d5bc 3624#endif /* HOSTAPD */
3f5285e8
JM		 3625
3626
ad1e68e6
JM		 3627static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv,
3628 int ifindex, int mode)
3f5285e8 3629{
3f5285e8 3630 struct nl_msg *msg;
ad1e68e6
JM		 3631 int ret = -ENOBUFS;
3632
3633 msg = nlmsg_alloc();
3634 if (!msg)
3635 return -ENOMEM;
3636
3637 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3638 0, NL80211_CMD_SET_INTERFACE, 0);
3639 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
3640 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode);
3641
3642 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3643 if (!ret)
3644 return 0;
3645nla_put_failure:
3646 wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:"
3647 " %d (%s)", ifindex, mode, ret, strerror(-ret));
3648 return ret;
3649}
3650
3651
3652static int wpa_driver_nl80211_set_mode(void *priv, int mode)
3653{
3654 struct wpa_driver_nl80211_data *drv = priv;
3655 int ret = -1;
1581b38b
JM		 3656 int nlmode;
3657
3658 switch (mode) {
3659 case 0:
3660 nlmode = NL80211_IFTYPE_STATION;
3661 break;
3662 case 1:
3663 nlmode = NL80211_IFTYPE_ADHOC;
3664 break;
3665 case 2:
3666 nlmode = NL80211_IFTYPE_AP;
3667 break;
3668 default:
3669 return -1;
3670 }
3f5285e8 3671
ad1e68e6
JM		 3672 if (nl80211_set_mode(drv, drv->ifindex, nlmode) == 0) {
3673 drv->nlmode = nlmode;
460456f8
JM		 3674 ret = 0;
3675 goto done;
ad1e68e6 3676 }
3f5285e8 3677
460456f8
JM		 3678 if (nlmode == drv->nlmode) {
3679 ret = 0;
3680 goto done; /* Already in the requested mode */
3681 }
3f5285e8 3682
3f5285e8
JM		 3683 /* mac80211 doesn't allow mode changes while the device is up, so
3684 * take the device down, try to set the mode again, and bring the
3685 * device back up.
3686 */
2135f224 3687 if (hostapd_set_iface_flags(drv, drv->ifname, 0) == 0) {
3f5285e8 3688 /* Try to set the mode again while the interface is down */
ad1e68e6 3689 ret = nl80211_set_mode(drv, drv->ifindex, nlmode);
2135f224
JM		 3690 if (hostapd_set_iface_flags(drv, drv->ifname, 1))
3691 ret = -1;
3f5285e8
JM		 3692 }
3693
ad1e68e6
JM		 3694 if (!ret)
3695 drv->nlmode = nlmode;
3696
460456f8
JM		 3697done:
3698#if defined(CONFIG_AP) || defined(HOSTAPD)
3699 if (!ret && nlmode == NL80211_IFTYPE_AP) {
3700 /* Setup additional AP mode functionality if needed */
3701 if (drv->monitor_ifidx < 0 &&
3702 nl80211_create_monitor_interface(drv))
3703 return -1;
3704 } else if (!ret && nlmode != NL80211_IFTYPE_AP) {
3705 /* Remove additional AP mode functionality */
3706 nl80211_remove_monitor_interface(drv);
3707 }
3708#endif /* CONFIG_AP || HOSTAPD */
3709
3f5285e8
JM		 3710 return ret;
3711}
3712
3713
c811d5bc
JM		 3714#ifndef HOSTAPD
3715
3f5285e8
JM		 3716static int wpa_driver_nl80211_get_capa(void *priv,
3717 struct wpa_driver_capa *capa)
3718{
3719 struct wpa_driver_nl80211_data *drv = priv;
3720 if (!drv->has_capability)
3721 return -1;
3722 os_memcpy(capa, &drv->capa, sizeof(*capa));
3723 return 0;
3724}
3725
3726
3727static int wpa_driver_nl80211_set_operstate(void *priv, int state)
3728{
3729 struct wpa_driver_nl80211_data *drv = priv;
3730
3731 wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)",
3732 __func__, drv->operstate, state, state ? "UP" : "DORMANT");
3733 drv->operstate = state;
3734 return wpa_driver_nl80211_send_oper_ifla(
3735 drv, -1, state ? IF_OPER_UP : IF_OPER_DORMANT);
3736}
3737
01652550
JM		 3738
3739static int wpa_driver_nl80211_set_supp_port(void *priv, int authorized)
3740{
3741 struct wpa_driver_nl80211_data *drv = priv;
3742 struct nl_msg *msg;
3743 struct nl80211_sta_flag_update upd;
3744
3745 msg = nlmsg_alloc();
3746 if (!msg)
3747 return -ENOMEM;
3748
3749 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3750 0, NL80211_CMD_SET_STATION, 0);
3751
3752 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
3753 if_nametoindex(drv->ifname));
3754 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, drv->bssid);
3755
3756 os_memset(&upd, 0, sizeof(upd));
3757 upd.mask = BIT(NL80211_STA_FLAG_AUTHORIZED);
3758 if (authorized)
3759 upd.set = BIT(NL80211_STA_FLAG_AUTHORIZED);
3760 NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);
3761
3762 return send_and_recv_msgs(drv, msg, NULL, NULL);
3763 nla_put_failure:
3764 return -ENOBUFS;
3765}
3766
c811d5bc
JM		 3767#endif /* HOSTAPD */
3768
3f5285e8 3769
c5121837
JM		 3770#ifdef HOSTAPD
3771
c5121837 3772static struct i802_bss * get_bss(struct wpa_driver_nl80211_data *drv,
b4fd6fab 3773 int ifindex)
c5121837
JM		 3774{
3775 struct i802_bss *bss = &drv->bss;
3776 while (bss) {
b4fd6fab 3777 if (ifindex == bss->ifindex)
c5121837
JM		 3778 return bss;
3779 bss = bss->next;
3780 }
b4fd6fab 3781 wpa_printf(MSG_DEBUG, "nl80211: get_bss(%d) failed", ifindex);
c5121837
JM		 3782 return NULL;
3783}
3784
3785
3786static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
3787{
3788 int i;
3789 int *old;
3790
3791 wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d",
3792 ifidx);
3793 for (i = 0; i < drv->num_if_indices; i++) {
3794 if (drv->if_indices[i] == 0) {
3795 drv->if_indices[i] = ifidx;
3796 return;
3797 }
3798 }
3799
3800 if (drv->if_indices != drv->default_if_indices)
3801 old = drv->if_indices;
3802 else
3803 old = NULL;
3804
3805 drv->if_indices = realloc(old,
3806 sizeof(int) * (drv->num_if_indices + 1));
3807 if (!drv->if_indices) {
3808 if (!old)
3809 drv->if_indices = drv->default_if_indices;
3810 else
3811 drv->if_indices = old;
3812 wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
3813 "interfaces");
3814 wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
3815 return;
3816 }
3817 drv->if_indices[drv->num_if_indices] = ifidx;
3818 drv->num_if_indices++;
3819}
3820
3821
3822static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
3823{
3824 int i;
3825
3826 for (i = 0; i < drv->num_if_indices; i++) {
3827 if (drv->if_indices[i] == ifidx) {
3828 drv->if_indices[i] = 0;
3829 break;
3830 }
3831 }
3832}
3833
3834
3835static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
3836{
3837 int i;
3838
3839 for (i = 0; i < drv->num_if_indices; i++)
3840 if (drv->if_indices[i] == ifidx)
3841 return 1;
3842
3843 return 0;
3844}
3845
3846
c5121837
JM		 3847static int i802_set_key(const char *iface, void *priv, wpa_alg alg,
3848 const u8 *addr, int key_idx, int set_tx, const u8 *seq,
3849 size_t seq_len, const u8 *key, size_t key_len)
3850{
3851 struct wpa_driver_nl80211_data *drv = priv;
1ad1cdc2
JM		 3852 return nl_set_encr(if_nametoindex(iface), drv, alg, addr, key_idx,
3853 set_tx, seq, seq_len, key, key_len);
c5121837
JM		 3854}
3855
3856
3857static inline int min_int(int a, int b)
3858{
3859 if (a < b)
3860 return a;
3861 return b;
3862}
3863
3864
3865static int get_key_handler(struct nl_msg *msg, void *arg)
3866{
3867 struct nlattr *tb[NL80211_ATTR_MAX + 1];
3868 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
3869
3870 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
3871 genlmsg_attrlen(gnlh, 0), NULL);
3872
3873 /*
3874 * TODO: validate the key index and mac address!
3875 * Otherwise, there's a race condition as soon as
3876 * the kernel starts sending key notifications.
3877 */
3878
3879 if (tb[NL80211_ATTR_KEY_SEQ])
3880 memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]),
3881 min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6));
3882 return NL_SKIP;
3883}
3884
3885
3886static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
3887 int idx, u8 *seq)
3888{
3889 struct wpa_driver_nl80211_data *drv = priv;
3890 struct nl_msg *msg;
3891
3892 msg = nlmsg_alloc();
3893 if (!msg)
3894 return -ENOMEM;
3895
3896 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3897 0, NL80211_CMD_GET_KEY, 0);
3898
3899 if (addr)
3900 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
3901 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
3902 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
3903
3904 memset(seq, 0, 6);
3905
3906 return send_and_recv_msgs(drv, msg, get_key_handler, seq);
3907 nla_put_failure:
3908 return -ENOBUFS;
3909}
3910
3911
3912static int i802_set_rate_sets(void *priv, int *supp_rates, int *basic_rates,
3913 int mode)
3914{
3915 struct wpa_driver_nl80211_data *drv = priv;
3916 struct nl_msg *msg;
3917 u8 rates[NL80211_MAX_SUPP_RATES];
3918 u8 rates_len = 0;
3919 int i;
3920
3921 msg = nlmsg_alloc();
3922 if (!msg)
3923 return -ENOMEM;
3924
3925 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
3926 NL80211_CMD_SET_BSS, 0);
3927
3928 for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; i++)
3929 rates[rates_len++] = basic_rates[i] / 5;
3930
3931 NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates);
3932
3933 /* TODO: multi-BSS support */
3934 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->ifname));
3935
3936 return send_and_recv_msgs(drv, msg, NULL, NULL);
3937 nla_put_failure:
3938 return -ENOBUFS;
3939}
3940
3941
c5121837
JM		 3942/* Set kernel driver on given frequency (MHz) */
3943static int i802_set_freq(void *priv, struct hostapd_freq_params *freq)
3944{
3945 struct wpa_driver_nl80211_data *drv = priv;
f019981a
JM		 3946 return wpa_driver_nl80211_set_freq(drv, freq->freq, freq->ht_enabled,
3947 freq->sec_channel_offset);
c5121837
JM		 3948}
3949
3950
3951static int i802_set_rts(void *priv, int rts)
3952{
3953 struct wpa_driver_nl80211_data *drv = priv;
ad649451
JM		 3954 struct nl_msg *msg;
3955 int ret = -ENOBUFS;
3956 u32 val;
c5121837 3957
ad649451
JM		 3958 msg = nlmsg_alloc();
3959 if (!msg)
3960 return -ENOMEM;
c5121837 3961
ad649451
JM		 3962 if (rts >= 2347)
3963 val = (u32) -1;
3964 else
3965 val = rts;
c5121837 3966
ad649451
JM		 3967 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3968 0, NL80211_CMD_SET_WIPHY, 0);
3969 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
3970 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, val);
3971
3972 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
3973 if (!ret)
3974 return 0;
3975nla_put_failure:
3976 wpa_printf(MSG_DEBUG, "nl80211: Failed to set RTS threshold %d: "
3977 "%d (%s)", rts, ret, strerror(-ret));
3978 return ret;
c5121837
JM		 3979}
3980
3981
3982static int i802_set_frag(void *priv, int frag)
3983{
3984 struct wpa_driver_nl80211_data *drv = priv;
ad649451
JM		 3985 struct nl_msg *msg;
3986 int ret = -ENOBUFS;
3987 u32 val;
c5121837 3988
ad649451
JM		 3989 msg = nlmsg_alloc();
3990 if (!msg)
3991 return -ENOMEM;
c5121837 3992
ad649451
JM		 3993 if (frag >= 2346)
3994 val = (u32) -1;
3995 else
3996 val = frag;
c5121837 3997
ad649451
JM		 3998 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
3999 0, NL80211_CMD_SET_WIPHY, 0);
4000 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
4001 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, val);
4002
4003 ret = send_and_recv_msgs(drv, msg, NULL, NULL);
4004 if (!ret)
4005 return 0;
4006nla_put_failure:
4007 wpa_printf(MSG_DEBUG, "nl80211: Failed to set fragmentation threshold "
4008 "%d: %d (%s)", frag, ret, strerror(-ret));
4009 return ret;
c5121837
JM		 4010}
4011
4012
c5121837
JM		 4013static int i802_flush(void *priv)
4014{
4015 struct wpa_driver_nl80211_data *drv = priv;
4016 struct nl_msg *msg;
4017
4018 msg = nlmsg_alloc();
4019 if (!msg)
4020 return -1;
4021
4022 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4023 0, NL80211_CMD_DEL_STATION, 0);
4024
4025 /*
4026 * XXX: FIX! this needs to flush all VLANs too
4027 */
4028 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
4029 if_nametoindex(drv->ifname));
4030
4031 return send_and_recv_msgs(drv, msg, NULL, NULL);
4032 nla_put_failure:
4033 return -ENOBUFS;
4034}
4035
4036
4037static int get_sta_handler(struct nl_msg *msg, void *arg)
4038{
4039 struct nlattr *tb[NL80211_ATTR_MAX + 1];
4040 struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
4041 struct hostap_sta_driver_data *data = arg;
4042 struct nlattr *stats[NL80211_STA_INFO_MAX + 1];
4043 static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
4044 [NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
4045 [NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
4046 [NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
4047 [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
4048 [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
4049 };
4050
4051 nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
4052 genlmsg_attrlen(gnlh, 0), NULL);
4053
4054 /*
4055 * TODO: validate the interface and mac address!
4056 * Otherwise, there's a race condition as soon as
4057 * the kernel starts sending station notifications.
4058 */
4059
4060 if (!tb[NL80211_ATTR_STA_INFO]) {
4061 wpa_printf(MSG_DEBUG, "sta stats missing!");
4062 return NL_SKIP;
4063 }
4064 if (nla_parse_nested(stats, NL80211_STA_INFO_MAX,
4065 tb[NL80211_ATTR_STA_INFO],
4066 stats_policy)) {
4067 wpa_printf(MSG_DEBUG, "failed to parse nested attributes!");
4068 return NL_SKIP;
4069 }
4070
4071 if (stats[NL80211_STA_INFO_INACTIVE_TIME])
4072 data->inactive_msec =
4073 nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]);
4074 if (stats[NL80211_STA_INFO_RX_BYTES])
4075 data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]);
4076 if (stats[NL80211_STA_INFO_TX_BYTES])
4077 data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]);
4078 if (stats[NL80211_STA_INFO_RX_PACKETS])
4079 data->rx_packets =
4080 nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]);
4081 if (stats[NL80211_STA_INFO_TX_PACKETS])
4082 data->tx_packets =
4083 nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]);
4084
4085 return NL_SKIP;
4086}
4087
4088static int i802_read_sta_data(void *priv, struct hostap_sta_driver_data *data,
4089 const u8 *addr)
4090{
4091 struct wpa_driver_nl80211_data *drv = priv;
4092 struct nl_msg *msg;
4093
4094 os_memset(data, 0, sizeof(*data));
4095 msg = nlmsg_alloc();
4096 if (!msg)
4097 return -ENOMEM;
4098
4099 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4100 0, NL80211_CMD_GET_STATION, 0);
4101
4102 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
4103 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->ifname));
4104
4105 return send_and_recv_msgs(drv, msg, get_sta_handler, data);
4106 nla_put_failure:
4107 return -ENOBUFS;
4108}
4109
4110
c5121837
JM		 4111static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
4112 int cw_min, int cw_max, int burst_time)
4113{
4114 struct wpa_driver_nl80211_data *drv = priv;
4115 struct nl_msg *msg;
4116 struct nlattr *txq, *params;
4117
4118 msg = nlmsg_alloc();
4119 if (!msg)
4120 return -1;
4121
4122 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4123 0, NL80211_CMD_SET_WIPHY, 0);
4124
4125 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->ifname));
4126
4127 txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS);
4128 if (!txq)
4129 goto nla_put_failure;
4130
4131 /* We are only sending parameters for a single TXQ at a time */
4132 params = nla_nest_start(msg, 1);
4133 if (!params)
4134 goto nla_put_failure;
4135
4136 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, queue);
4137 /* Burst time is configured in units of 0.1 msec and TXOP parameter in
4138 * 32 usec, so need to convert the value here. */
4139 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32);
4140 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min);
4141 NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max);
4142 NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs);
4143
4144 nla_nest_end(msg, params);
4145
4146 nla_nest_end(msg, txq);
4147
4148 if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
4149 return 0;
4150 nla_put_failure:
4151 return -1;
4152}
4153
4154
c5121837
JM		 4155static int i802_bss_add(void *priv, const char *ifname, const u8 *bssid)
4156{
4157 struct wpa_driver_nl80211_data *drv = priv;
4158 int ifidx;
4159 struct i802_bss *bss;
4160
4161 bss = os_zalloc(sizeof(*bss));
4162 if (bss == NULL)
4163 return -1;
c5121837
JM		 4164
4165 ifidx = nl80211_create_iface(priv, ifname, NL80211_IFTYPE_AP, bssid);
4166 if (ifidx < 0) {
4167 os_free(bss);
4168 return -1;
4169 }
6d550fbe 4170 bss->ifindex = ifidx;
c5121837
JM		 4171 if (hostapd_set_iface_flags(priv, ifname, 1)) {
4172 nl80211_remove_iface(priv, ifidx);
4173 os_free(bss);
4174 return -1;
4175 }
4176 bss->next = drv->bss.next;
4177 drv->bss.next = bss;
4178 return 0;
4179}
4180
4181
4182static int i802_bss_remove(void *priv, const char *ifname)
4183{
4184 struct wpa_driver_nl80211_data *drv = priv;
4185 struct i802_bss *bss, *prev;
b4fd6fab
JM		 4186 int ifindex = if_nametoindex(ifname);
4187 nl80211_remove_iface(priv, ifindex);
c5121837
JM		 4188 prev = &drv->bss;
4189 bss = drv->bss.next;
4190 while (bss) {
b4fd6fab 4191 if (ifindex == bss->ifindex) {
c5121837
JM		 4192 prev->next = bss->next;
4193 os_free(bss);
4194 break;
4195 }
4196 prev = bss;
4197 bss = bss->next;
4198 }
4199 return 0;
4200}
4201
4202
4203static int i802_set_beacon(const char *iface, void *priv,
4204 const u8 *head, size_t head_len,
4205 const u8 *tail, size_t tail_len, int dtim_period)
4206{
b4fd6fab
JM		 4207 return wpa_driver_nl80211_set_beacon_iface(if_nametoindex(iface), priv,
4208 head, head_len,
4209 tail, tail_len,
4210 dtim_period);
c5121837
JM		 4211}
4212
4213
c5121837
JM		 4214static int i802_set_bss(void *priv, int cts, int preamble, int slot)
4215{
4216 struct wpa_driver_nl80211_data *drv = priv;
4217 struct nl_msg *msg;
4218
4219 msg = nlmsg_alloc();
4220 if (!msg)
4221 return -ENOMEM;
4222
4223 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
4224 NL80211_CMD_SET_BSS, 0);
4225
4226 if (cts >= 0)
4227 NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts);
4228 if (preamble >= 0)
4229 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble);
4230 if (slot >= 0)
4231 NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot);
4232
4233 /* TODO: multi-BSS support */
4234 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->ifname));
4235
4236 return send_and_recv_msgs(drv, msg, NULL, NULL);
4237 nla_put_failure:
4238 return -ENOBUFS;
4239}
4240
4241
4242static int i802_set_cts_protect(void *priv, int value)
4243{
4244 return i802_set_bss(priv, value, -1, -1);
4245}
4246
4247
4248static int i802_set_preamble(void *priv, int value)
4249{
4250 return i802_set_bss(priv, -1, value, -1);
4251}
4252
4253
4254static int i802_set_short_slot_time(void *priv, int value)
4255{
4256 return i802_set_bss(priv, -1, -1, value);
4257}
4258
4259
4260static enum nl80211_iftype i802_if_type(enum hostapd_driver_if_type type)
4261{
4262 switch (type) {
4263 case HOSTAPD_IF_VLAN:
4264 return NL80211_IFTYPE_AP_VLAN;
c5121837
JM		 4265 }
4266 return -1;
4267}
4268
4269
4270static int i802_if_add(const char *iface, void *priv,
4271 enum hostapd_driver_if_type type, char *ifname,
4272 const u8 *addr)
4273{
4274 if (nl80211_create_iface(priv, ifname, i802_if_type(type), addr) < 0)
4275 return -1;
4276 return 0;
4277}
4278
4279
4280static int i802_if_update(void *priv, enum hostapd_driver_if_type type,
4281 char *ifname, const u8 *addr)
4282{
4283 /* unused at the moment */
4284 return -1;
4285}
4286
4287
4288static int i802_if_remove(void *priv, enum hostapd_driver_if_type type,
4289 const char *ifname, const u8 *addr)
4290{
4291 nl80211_remove_iface(priv, if_nametoindex(ifname));
4292 return 0;
4293}
4294
4295
c5121837
JM		 4296static int i802_set_sta_vlan(void *priv, const u8 *addr,
4297 const char *ifname, int vlan_id)
4298{
4299 struct wpa_driver_nl80211_data *drv = priv;
4300 struct nl_msg *msg;
4301
4302 msg = nlmsg_alloc();
4303 if (!msg)
4304 return -ENOMEM;
4305
4306 genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
4307 0, NL80211_CMD_SET_STATION, 0);
4308
4309 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
4310 if_nametoindex(drv->ifname));
4311 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
1c766b09 4312 NLA_PUT_U32(msg, NL80211_ATTR_STA_VLAN,
c5121837
JM		 4313 if_nametoindex(ifname));
4314
4315 return send_and_recv_msgs(drv, msg, NULL, NULL);
4316 nla_put_failure:
4317 return -ENOBUFS;
4318}
4319
4320
c5121837
JM		 4321static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
4322{
4323 struct wpa_driver_nl80211_data *drv = eloop_ctx;
4324 struct sockaddr_ll lladdr;
4325 unsigned char buf[3000];
4326 int len;
4327 socklen_t fromlen = sizeof(lladdr);
4328
4329 len = recvfrom(sock, buf, sizeof(buf), 0,
4330 (struct sockaddr *)&lladdr, &fromlen);
4331 if (len < 0) {
4332 perror("recv");
4333 return;
4334 }
4335
4336 if (have_ifidx(drv, lladdr.sll_ifindex)) {
4b9841d3
JM		 4337 void *ctx;
4338 ctx = hostapd_sta_get_bss(drv->ctx, lladdr.sll_addr);
4339 if (!ctx)
c5121837 4340 return;
4b9841d3 4341 hostapd_eapol_receive(ctx, lladdr.sll_addr, buf, len);
c5121837
JM		 4342 }
4343}
4344
4345
c5121837
JM		 4346static int i802_get_inact_sec(void *priv, const u8 *addr)
4347{
4348 struct hostap_sta_driver_data data;
4349 int ret;
4350
4351 data.inactive_msec = (unsigned long) -1;
4352 ret = i802_read_sta_data(priv, &data, addr);
4353 if (ret || data.inactive_msec == (unsigned long) -1)
4354 return -1;
4355 return data.inactive_msec / 1000;
4356}
4357
4358
4359static int i802_sta_clear_stats(void *priv, const u8 *addr)
4360{
4361#if 0
4362 /* TODO */
4363#endif
4364 return 0;
4365}
4366
4367
731723a5
JM		 4368static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
4369 int reason)
c5121837
JM		 4370{
4371 struct wpa_driver_nl80211_data *drv = priv;
4372 struct ieee80211_mgmt mgmt;
4373
4374 memset(&mgmt, 0, sizeof(mgmt));
4375 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
4376 WLAN_FC_STYPE_DEAUTH);
4377 memcpy(mgmt.da, addr, ETH_ALEN);
731723a5
JM		 4378 memcpy(mgmt.sa, own_addr, ETH_ALEN);
4379 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
c5121837 4380 mgmt.u.deauth.reason_code = host_to_le16(reason);
9f324b61
JM		 4381 return wpa_driver_nl80211_send_mlme(drv, (u8 *) &mgmt,
4382 IEEE80211_HDRLEN +
4383 sizeof(mgmt.u.deauth));
c5121837
JM		 4384}
4385
4386
731723a5
JM		 4387static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
4388 int reason)
c5121837
JM		 4389{
4390 struct wpa_driver_nl80211_data *drv = priv;
4391 struct ieee80211_mgmt mgmt;
4392
4393 memset(&mgmt, 0, sizeof(mgmt));
4394 mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
4395 WLAN_FC_STYPE_DISASSOC);
4396 memcpy(mgmt.da, addr, ETH_ALEN);
731723a5
JM		 4397 memcpy(mgmt.sa, own_addr, ETH_ALEN);
4398 memcpy(mgmt.bssid, own_addr, ETH_ALEN);
c5121837 4399 mgmt.u.disassoc.reason_code = host_to_le16(reason);
9f324b61
JM		 4400 return wpa_driver_nl80211_send_mlme(drv, (u8 *) &mgmt,
4401 IEEE80211_HDRLEN +
4402 sizeof(mgmt.u.disassoc));
c5121837
JM		 4403}
4404
4405
92f475b4
JM		 4406static void *i802_init(struct hostapd_data *hapd,
4407 struct wpa_init_params *params)
c5121837
JM		 4408{
4409 struct wpa_driver_nl80211_data *drv;
4410 size_t i;
4411
bbaf0837
JM		 4412 drv = wpa_driver_nl80211_init(hapd, params->ifname);
4413 if (drv == NULL)
c5121837 4414 return NULL;
c5121837 4415
b4fd6fab 4416 drv->bss.ifindex = drv->ifindex;
c5121837
JM		 4417
4418 drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
4419 drv->if_indices = drv->default_if_indices;
92f475b4
JM		 4420 for (i = 0; i < params->num_bridge; i++) {
4421 if (params->bridge[i])
4422 add_ifidx(drv, if_nametoindex(params->bridge[i]));
c5121837 4423 }
c5121837 4424
ad1e68e6
JM		 4425 /* start listening for EAPOL on the default AP interface */
4426 add_ifidx(drv, drv->ifindex);
4427
6980c191
FF		 4428 if (hostapd_set_iface_flags(drv, drv->ifname, 0))
4429 goto failed;
ad1e68e6 4430
6980c191 4431 if (params->bssid) {
460456f8
JM		 4432 if (set_ifhwaddr(drv, drv->ifname, params->bssid))
4433 goto failed;
4434 }
ad1e68e6
JM		 4435
4436 if (nl80211_set_mode(drv, drv->ifindex, NL80211_IFTYPE_AP)) {
4437 wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s "
4438 "into AP mode", drv->ifname);
bbaf0837 4439 goto failed;
ad1e68e6
JM		 4440 }
4441
4442 if (hostapd_set_iface_flags(drv, drv->ifname, 1))
bbaf0837 4443 goto failed;
ad1e68e6
JM		 4444
4445 drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE));
4446 if (drv->eapol_sock < 0) {
4447 perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)");
bbaf0837 4448 goto failed;
ad1e68e6
JM		 4449 }
4450
4451 if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL))
4452 {
4453 printf("Could not register read socket for eapol\n");
c5121837 4454 goto failed;
ad1e68e6
JM		 4455 }
4456
412036f5 4457 if (get_ifhwaddr(drv, drv->ifname, params->own_addr))
bbaf0837 4458 goto failed;
c5121837 4459
c5121837
JM		 4460 return drv;
4461
4462failed:
460456f8 4463 nl80211_remove_monitor_interface(drv);
c5121837
JM		 4464 if (drv->ioctl_sock >= 0)
4465 close(drv->ioctl_sock);
c5121837
JM		 4466
4467 genl_family_put(drv->nl80211);
4468 nl_cache_free(drv->nl_cache);
4469 nl_handle_destroy(drv->nl_handle);
4470 nl_cb_put(drv->nl_cb);
4471
bbaf0837
JM		 4472 os_free(drv);
4473 return NULL;
4474}
c5121837 4475
c5121837 4476
bbaf0837
JM		 4477static void i802_deinit(void *priv)
4478{
4479 wpa_driver_nl80211_deinit(priv);
c5121837
JM		 4480}
4481
4482#endif /* HOSTAPD */
4483
4484
3f5285e8
JM		 4485const struct wpa_driver_ops wpa_driver_nl80211_ops = {
4486 .name = "nl80211",
4487 .desc = "Linux nl80211/cfg80211",
c811d5bc 4488#ifndef HOSTAPD
3f5285e8
JM		 4489 .get_bssid = wpa_driver_nl80211_get_bssid,
4490 .get_ssid = wpa_driver_nl80211_get_ssid,
3f5285e8 4491 .set_key = wpa_driver_nl80211_set_key,
c811d5bc 4492#endif /* HOSTAPD */
6a1063e0 4493 .scan2 = wpa_driver_nl80211_scan,
3f5285e8 4494 .get_scan_results2 = wpa_driver_nl80211_get_scan_results,
c811d5bc 4495#ifndef HOSTAPD
3f5285e8
JM		 4496 .deauthenticate = wpa_driver_nl80211_deauthenticate,
4497 .disassociate = wpa_driver_nl80211_disassociate,
c2a04078 4498 .authenticate = wpa_driver_nl80211_authenticate,
3f5285e8 4499 .associate = wpa_driver_nl80211_associate,
3f5285e8
JM		 4500 .init = wpa_driver_nl80211_init,
4501 .deinit = wpa_driver_nl80211_deinit,
3f5285e8
JM		 4502 .get_capa = wpa_driver_nl80211_get_capa,
4503 .set_operstate = wpa_driver_nl80211_set_operstate,
01652550 4504 .set_supp_port = wpa_driver_nl80211_set_supp_port,
c811d5bc 4505#endif /* HOSTAPD */
6d158490 4506 .set_country = wpa_driver_nl80211_set_country,
ad1e68e6 4507 .set_mode = wpa_driver_nl80211_set_mode,
d2440ba0
JM		 4508#ifdef CONFIG_AP
4509 .set_beacon = wpa_driver_nl80211_set_beacon,
d2440ba0 4510#endif /* CONFIG_AP */
c3965310 4511#if defined(CONFIG_AP) || defined(HOSTAPD)
071f8ac4 4512 .send_mlme = wpa_driver_nl80211_send_mlme,
b4fd6fab 4513 .set_beacon_int = wpa_driver_nl80211_set_beacon_int,
c3965310 4514 .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data,
0f4e8b4f
JM		 4515 .sta_add = wpa_driver_nl80211_sta_add,
4516 .sta_remove = wpa_driver_nl80211_sta_remove,
db149ac9 4517 .hapd_send_eapol = wpa_driver_nl80211_hapd_send_eapol,
a8d6ffa4 4518 .sta_set_flags = wpa_driver_nl80211_sta_set_flags,
c3965310 4519#endif /* CONFIG_AP || HOSTAPD */
c5121837
JM		 4520#ifdef HOSTAPD
4521 .hapd_init = i802_init,
c5121837
JM		 4522 .hapd_deinit = i802_deinit,
4523 .hapd_set_key = i802_set_key,
4524 .get_seqnum = i802_get_seqnum,
4525 .flush = i802_flush,
4526 .read_sta_data = i802_read_sta_data,
c5121837
JM		 4527 .sta_deauth = i802_sta_deauth,
4528 .sta_disassoc = i802_sta_disassoc,
c5121837
JM		 4529 .get_inact_sec = i802_get_inact_sec,
4530 .sta_clear_stats = i802_sta_clear_stats,
4531 .set_freq = i802_set_freq,
4532 .set_rts = i802_set_rts,
4533 .set_frag = i802_set_frag,
c5121837
JM		 4534 .set_rate_sets = i802_set_rate_sets,
4535 .hapd_set_beacon = i802_set_beacon,
c5121837
JM		 4536 .set_cts_protect = i802_set_cts_protect,
4537 .set_preamble = i802_set_preamble,
4538 .set_short_slot_time = i802_set_short_slot_time,
4539 .set_tx_queue_params = i802_set_tx_queue_params,
4540 .bss_add = i802_bss_add,
4541 .bss_remove = i802_bss_remove,
4542 .if_add = i802_if_add,
4543 .if_update = i802_if_update,
4544 .if_remove = i802_if_remove,
c5121837 4545 .set_sta_vlan = i802_set_sta_vlan,
c5121837 4546#endif /* HOSTAPD */
3f5285e8 4547};
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