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1/*
2 * WPA Supplicant - driver interaction with BSD net80211 layer
3 * Copyright (c) 2004, Sam Leffler <sam@errno.com>
4 * Copyright (c) 2004, 2Wire, Inc
5 *
6 * This software may be distributed under the terms of the BSD license.
7 * See README for more details.
8 */
9
10#include "includes.h"
11#include <sys/ioctl.h>
12#include <sys/sysctl.h>
13
14#include "common.h"
15#include "driver.h"
16#include "eloop.h"
17#include "common/ieee802_11_defs.h"
18#include "common/wpa_common.h"
19
20#include <net/if.h>
21#include <net/if_media.h>
22
23#ifdef __NetBSD__
24#include <net/if_ether.h>
25#else
26#include <net/ethernet.h>
27#endif
28#include <net/route.h>
29
30#ifdef __DragonFly__
31#include <netproto/802_11/ieee80211_ioctl.h>
32#include <netproto/802_11/ieee80211_dragonfly.h>
33#else /* __DragonFly__ */
34#ifdef __GLIBC__
35#include <netinet/ether.h>
36#endif /* __GLIBC__ */
37#include <net80211/ieee80211.h>
38#include <net80211/ieee80211_ioctl.h>
39#include <net80211/ieee80211_crypto.h>
40#endif /* __DragonFly__ || __GLIBC__ */
41#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
42#include <net80211/ieee80211_freebsd.h>
43#endif
44#if __NetBSD__
45#include <net80211/ieee80211_netbsd.h>
46#endif
47
48#include "l2_packet/l2_packet.h"
49
50struct bsd_driver_global {
51 int sock; /* socket for 802.11 ioctls */
52 int route; /* routing socket for events */
53 char *event_buf;
54 size_t event_buf_len;
55 struct dl_list ifaces; /* list of interfaces */
56};
57
58struct bsd_driver_data {
59 struct dl_list list;
60 struct bsd_driver_global *global;
61 struct hostapd_data *hapd; /* back pointer */
62
63 struct l2_packet_data *sock_xmit;/* raw packet xmit socket */
64 char ifname[IFNAMSIZ+1]; /* interface name */
65 unsigned int ifindex; /* interface index */
66 void *ctx;
67 struct wpa_driver_capa capa; /* driver capability */
68 int is_ap; /* Access point mode */
69 int prev_roaming; /* roaming state to restore on deinit */
70 int prev_privacy; /* privacy state to restore on deinit */
71 int prev_wpa; /* wpa state to restore on deinit */
72 enum ieee80211_opmode opmode; /* operation mode */
73};
74
75/* Generic functions for hostapd and wpa_supplicant */
76
77static struct bsd_driver_data *
78bsd_get_drvindex(void *priv, unsigned int ifindex)
79{
80 struct bsd_driver_global *global = priv;
81 struct bsd_driver_data *drv;
82
83 dl_list_for_each(drv, &global->ifaces, struct bsd_driver_data, list) {
84 if (drv->ifindex == ifindex)
85 return drv;
86 }
87 return NULL;
88}
89
90static int
91bsd_set80211(void *priv, int op, int val, const void *arg, int arg_len)
92{
93 struct bsd_driver_data *drv = priv;
94 struct ieee80211req ireq;
95
96 os_memset(&ireq, 0, sizeof(ireq));
97 os_strlcpy(ireq.i_name, drv->ifname, sizeof(ireq.i_name));
98 ireq.i_type = op;
99 ireq.i_val = val;
100 ireq.i_data = (void *) arg;
101 ireq.i_len = arg_len;
102
103 if (ioctl(drv->global->sock, SIOCS80211, &ireq) < 0) {
104 wpa_printf(MSG_ERROR, "ioctl[SIOCS80211, op=%u, val=%u, "
105 "arg_len=%u]: %s", op, val, arg_len,
106 strerror(errno));
107 return -1;
108 }
109 return 0;
110}
111
112static int
113bsd_get80211(void *priv, struct ieee80211req *ireq, int op, void *arg,
114 int arg_len)
115{
116 struct bsd_driver_data *drv = priv;
117
118 os_memset(ireq, 0, sizeof(*ireq));
119 os_strlcpy(ireq->i_name, drv->ifname, sizeof(ireq->i_name));
120 ireq->i_type = op;
121 ireq->i_len = arg_len;
122 ireq->i_data = arg;
123
124 if (ioctl(drv->global->sock, SIOCG80211, ireq) < 0) {
125 wpa_printf(MSG_ERROR, "ioctl[SIOCS80211, op=%u, "
126 "arg_len=%u]: %s", op, arg_len, strerror(errno));
127 return -1;
128 }
129 return 0;
130}
131
132static int
133get80211var(struct bsd_driver_data *drv, int op, void *arg, int arg_len)
134{
135 struct ieee80211req ireq;
136
137 if (bsd_get80211(drv, &ireq, op, arg, arg_len) < 0)
138 return -1;
139 return ireq.i_len;
140}
141
142static int
143set80211var(struct bsd_driver_data *drv, int op, const void *arg, int arg_len)
144{
145 return bsd_set80211(drv, op, 0, arg, arg_len);
146}
147
148static int
149set80211param(struct bsd_driver_data *drv, int op, int arg)
150{
151 return bsd_set80211(drv, op, arg, NULL, 0);
152}
153
154static int
155bsd_get_ssid(void *priv, u8 *ssid, int len)
156{
157 struct bsd_driver_data *drv = priv;
158#ifdef SIOCG80211NWID
159 struct ieee80211_nwid nwid;
160 struct ifreq ifr;
161
162 os_memset(&ifr, 0, sizeof(ifr));
163 os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
164 ifr.ifr_data = (void *)&nwid;
165 if (ioctl(drv->global->sock, SIOCG80211NWID, &ifr) < 0 ||
166 nwid.i_len > IEEE80211_NWID_LEN)
167 return -1;
168 os_memcpy(ssid, nwid.i_nwid, nwid.i_len);
169 return nwid.i_len;
170#else
171 return get80211var(drv, IEEE80211_IOC_SSID, ssid, IEEE80211_NWID_LEN);
172#endif
173}
174
175static int
176bsd_set_ssid(void *priv, const u8 *ssid, int ssid_len)
177{
178 struct bsd_driver_data *drv = priv;
179#ifdef SIOCS80211NWID
180 struct ieee80211_nwid nwid;
181 struct ifreq ifr;
182
183 os_memcpy(nwid.i_nwid, ssid, ssid_len);
184 nwid.i_len = ssid_len;
185 os_memset(&ifr, 0, sizeof(ifr));
186 os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
187 ifr.ifr_data = (void *)&nwid;
188 return ioctl(drv->global->sock, SIOCS80211NWID, &ifr);
189#else
190 return set80211var(drv, IEEE80211_IOC_SSID, ssid, ssid_len);
191#endif
192}
193
194static int
195bsd_get_if_media(void *priv)
196{
197 struct bsd_driver_data *drv = priv;
198 struct ifmediareq ifmr;
199
200 os_memset(&ifmr, 0, sizeof(ifmr));
201 os_strlcpy(ifmr.ifm_name, drv->ifname, sizeof(ifmr.ifm_name));
202
203 if (ioctl(drv->global->sock, SIOCGIFMEDIA, &ifmr) < 0) {
204 wpa_printf(MSG_ERROR, "%s: SIOCGIFMEDIA %s", __func__,
205 strerror(errno));
206 return -1;
207 }
208
209 return ifmr.ifm_current;
210}
211
212static int
213bsd_set_if_media(void *priv, int media)
214{
215 struct bsd_driver_data *drv = priv;
216 struct ifreq ifr;
217
218 os_memset(&ifr, 0, sizeof(ifr));
219 os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
220 ifr.ifr_media = media;
221
222 if (ioctl(drv->global->sock, SIOCSIFMEDIA, &ifr) < 0) {
223 wpa_printf(MSG_ERROR, "%s: SIOCSIFMEDIA %s", __func__,
224 strerror(errno));
225 return -1;
226 }
227
228 return 0;
229}
230
231static int
232bsd_set_mediaopt(void *priv, uint32_t mask, uint32_t mode)
233{
234 int media = bsd_get_if_media(priv);
235
236 if (media < 0)
237 return -1;
238 media &= ~mask;
239 media |= mode;
240 if (bsd_set_if_media(priv, media) < 0)
241 return -1;
242 return 0;
243}
244
245static int
246bsd_del_key(void *priv, const u8 *addr, int key_idx)
247{
248 struct ieee80211req_del_key wk;
249
250 os_memset(&wk, 0, sizeof(wk));
251 if (addr == NULL) {
252 wpa_printf(MSG_DEBUG, "%s: key_idx=%d", __func__, key_idx);
253 wk.idk_keyix = key_idx;
254 } else {
255 wpa_printf(MSG_DEBUG, "%s: addr=" MACSTR, __func__,
256 MAC2STR(addr));
257 os_memcpy(wk.idk_macaddr, addr, IEEE80211_ADDR_LEN);
258 wk.idk_keyix = (u_int8_t) IEEE80211_KEYIX_NONE; /* XXX */
259 }
260
261 return set80211var(priv, IEEE80211_IOC_DELKEY, &wk, sizeof(wk));
262}
263
264static int
265bsd_send_mlme_param(void *priv, const u8 op, const u16 reason, const u8 *addr)
266{
267 struct ieee80211req_mlme mlme;
268
269 os_memset(&mlme, 0, sizeof(mlme));
270 mlme.im_op = op;
271 mlme.im_reason = reason;
272 os_memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
273 return set80211var(priv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme));
274}
275
276static int
277bsd_ctrl_iface(void *priv, int enable)
278{
279 struct bsd_driver_data *drv = priv;
280 struct ifreq ifr;
281
282 os_memset(&ifr, 0, sizeof(ifr));
283 os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
284
285 if (ioctl(drv->global->sock, SIOCGIFFLAGS, &ifr) < 0) {
286 wpa_printf(MSG_ERROR, "ioctl[SIOCGIFFLAGS]: %s",
287 strerror(errno));
288 return -1;
289 }
290
291 if (enable) {
292 if (ifr.ifr_flags & IFF_UP)
293 return 0;
294 ifr.ifr_flags |= IFF_UP;
295 } else {
296 if (!(ifr.ifr_flags & IFF_UP))
297 return 0;
298 ifr.ifr_flags &= ~IFF_UP;
299 }
300
301 if (ioctl(drv->global->sock, SIOCSIFFLAGS, &ifr) < 0) {
302 wpa_printf(MSG_ERROR, "ioctl[SIOCSIFFLAGS]: %s",
303 strerror(errno));
304 return -1;
305 }
306
307 return 0;
308}
309
310static int
311bsd_set_key(const char *ifname, void *priv, enum wpa_alg alg,
312 const unsigned char *addr, int key_idx, int set_tx, const u8 *seq,
313 size_t seq_len, const u8 *key, size_t key_len)
314{
315 struct ieee80211req_key wk;
316#ifdef IEEE80211_KEY_NOREPLAY
317 struct bsd_driver_data *drv = priv;
318#endif /* IEEE80211_KEY_NOREPLAY */
319
320 wpa_printf(MSG_DEBUG, "%s: alg=%d addr=%p key_idx=%d set_tx=%d "
321 "seq_len=%zu key_len=%zu", __func__, alg, addr, key_idx,
322 set_tx, seq_len, key_len);
323
324 if (alg == WPA_ALG_NONE) {
325#ifndef HOSTAPD
326 if (addr == NULL || is_broadcast_ether_addr(addr))
327 return bsd_del_key(priv, NULL, key_idx);
328 else
329#endif /* HOSTAPD */
330 return bsd_del_key(priv, addr, key_idx);
331 }
332
333 os_memset(&wk, 0, sizeof(wk));
334 switch (alg) {
335 case WPA_ALG_WEP:
336 wk.ik_type = IEEE80211_CIPHER_WEP;
337 break;
338 case WPA_ALG_TKIP:
339 wk.ik_type = IEEE80211_CIPHER_TKIP;
340 break;
341 case WPA_ALG_CCMP:
342 wk.ik_type = IEEE80211_CIPHER_AES_CCM;
343 break;
344 default:
345 wpa_printf(MSG_ERROR, "%s: unknown alg=%d", __func__, alg);
346 return -1;
347 }
348
349 wk.ik_flags = IEEE80211_KEY_RECV;
350 if (set_tx)
351 wk.ik_flags |= IEEE80211_KEY_XMIT;
352
353 if (addr == NULL) {
354 os_memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
355 wk.ik_keyix = key_idx;
356 } else {
357 os_memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
358 /*
359 * Deduce whether group/global or unicast key by checking
360 * the address (yech). Note also that we can only mark global
361 * keys default; doing this for a unicast key is an error.
362 */
363 if (is_broadcast_ether_addr(addr)) {
364 wk.ik_flags |= IEEE80211_KEY_GROUP;
365 wk.ik_keyix = key_idx;
366 } else {
367 wk.ik_keyix = key_idx == 0 ? IEEE80211_KEYIX_NONE :
368 key_idx;
369 }
370 }
371 if (wk.ik_keyix != IEEE80211_KEYIX_NONE && set_tx)
372 wk.ik_flags |= IEEE80211_KEY_DEFAULT;
373#ifndef HOSTAPD
374#ifdef IEEE80211_KEY_NOREPLAY
375 /*
376 * Ignore replay failures in IBSS and AHDEMO mode.
377 */
378 if (drv->opmode == IEEE80211_M_IBSS ||
379 drv->opmode == IEEE80211_M_AHDEMO)
380 wk.ik_flags |= IEEE80211_KEY_NOREPLAY;
381#endif /* IEEE80211_KEY_NOREPLAY */
382#endif /* HOSTAPD */
383 wk.ik_keylen = key_len;
384 if (seq) {
385#ifdef WORDS_BIGENDIAN
386 /*
387 * wk.ik_keyrsc is in host byte order (big endian), need to
388 * swap it to match with the byte order used in WPA.
389 */
390 int i;
391 u8 *keyrsc = (u8 *) &wk.ik_keyrsc;
392 for (i = 0; i < seq_len; i++)
393 keyrsc[WPA_KEY_RSC_LEN - i - 1] = seq[i];
394#else /* WORDS_BIGENDIAN */
395 os_memcpy(&wk.ik_keyrsc, seq, seq_len);
396#endif /* WORDS_BIGENDIAN */
397 }
398 os_memcpy(wk.ik_keydata, key, key_len);
399
400 return set80211var(priv, IEEE80211_IOC_WPAKEY, &wk, sizeof(wk));
401}
402
403static int
404bsd_configure_wpa(void *priv, struct wpa_bss_params *params)
405{
406#ifndef IEEE80211_IOC_APPIE
407 static const char *ciphernames[] =
408 { "WEP", "TKIP", "AES-OCB", "AES-CCM", "CKIP", "NONE" };
409 int v;
410
411 switch (params->wpa_group) {
412 case WPA_CIPHER_CCMP:
413 v = IEEE80211_CIPHER_AES_CCM;
414 break;
415 case WPA_CIPHER_TKIP:
416 v = IEEE80211_CIPHER_TKIP;
417 break;
418 case WPA_CIPHER_WEP104:
419 v = IEEE80211_CIPHER_WEP;
420 break;
421 case WPA_CIPHER_WEP40:
422 v = IEEE80211_CIPHER_WEP;
423 break;
424 case WPA_CIPHER_NONE:
425 v = IEEE80211_CIPHER_NONE;
426 break;
427 default:
428 wpa_printf(MSG_INFO, "Unknown group key cipher %u",
429 params->wpa_group);
430 return -1;
431 }
432 wpa_printf(MSG_DEBUG, "%s: group key cipher=%s (%u)",
433 __func__, ciphernames[v], v);
434 if (set80211param(priv, IEEE80211_IOC_MCASTCIPHER, v)) {
435 wpa_printf(MSG_INFO,
436 "Unable to set group key cipher to %u (%s)",
437 v, ciphernames[v]);
438 return -1;
439 }
440 if (v == IEEE80211_CIPHER_WEP) {
441 /* key length is done only for specific ciphers */
442 v = (params->wpa_group == WPA_CIPHER_WEP104 ? 13 : 5);
443 if (set80211param(priv, IEEE80211_IOC_MCASTKEYLEN, v)) {
444 wpa_printf(MSG_INFO,
445 "Unable to set group key length to %u", v);
446 return -1;
447 }
448 }
449
450 v = 0;
451 if (params->wpa_pairwise & WPA_CIPHER_CCMP)
452 v |= 1<<IEEE80211_CIPHER_AES_CCM;
453 if (params->wpa_pairwise & WPA_CIPHER_TKIP)
454 v |= 1<<IEEE80211_CIPHER_TKIP;
455 if (params->wpa_pairwise & WPA_CIPHER_NONE)
456 v |= 1<<IEEE80211_CIPHER_NONE;
457 wpa_printf(MSG_DEBUG, "%s: pairwise key ciphers=0x%x", __func__, v);
458 if (set80211param(priv, IEEE80211_IOC_UCASTCIPHERS, v)) {
459 wpa_printf(MSG_INFO,
460 "Unable to set pairwise key ciphers to 0x%x", v);
461 return -1;
462 }
463
464 wpa_printf(MSG_DEBUG, "%s: key management algorithms=0x%x",
465 __func__, params->wpa_key_mgmt);
466 if (set80211param(priv, IEEE80211_IOC_KEYMGTALGS,
467 params->wpa_key_mgmt)) {
468 wpa_printf(MSG_INFO,
469 "Unable to set key management algorithms to 0x%x",
470 params->wpa_key_mgmt);
471 return -1;
472 }
473
474 v = 0;
475 if (params->rsn_preauth)
476 v |= BIT(0);
477 wpa_printf(MSG_DEBUG, "%s: rsn capabilities=0x%x",
478 __func__, params->rsn_preauth);
479 if (set80211param(priv, IEEE80211_IOC_RSNCAPS, v)) {
480 wpa_printf(MSG_INFO, "Unable to set RSN capabilities to 0x%x",
481 v);
482 return -1;
483 }
484#endif /* IEEE80211_IOC_APPIE */
485
486 wpa_printf(MSG_DEBUG, "%s: enable WPA= 0x%x", __func__, params->wpa);
487 if (set80211param(priv, IEEE80211_IOC_WPA, params->wpa)) {
488 wpa_printf(MSG_INFO, "Unable to set WPA to %u", params->wpa);
489 return -1;
490 }
491 return 0;
492}
493
494static int
495bsd_set_ieee8021x(void *priv, struct wpa_bss_params *params)
496{
497 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, params->enabled);
498
499 if (!params->enabled) {
500 /* XXX restore state */
501 return set80211param(priv, IEEE80211_IOC_AUTHMODE,
502 IEEE80211_AUTH_AUTO);
503 }
504 if (!params->wpa && !params->ieee802_1x) {
505 wpa_printf(MSG_ERROR, "%s: No 802.1X or WPA enabled",
506 __func__);
507 return -1;
508 }
509 if (params->wpa && bsd_configure_wpa(priv, params) != 0) {
510 wpa_printf(MSG_ERROR, "%s: Failed to configure WPA state",
511 __func__);
512 return -1;
513 }
514 if (set80211param(priv, IEEE80211_IOC_AUTHMODE,
515 (params->wpa ? IEEE80211_AUTH_WPA : IEEE80211_AUTH_8021X))) {
516 wpa_printf(MSG_ERROR, "%s: Failed to enable WPA/802.1X",
517 __func__);
518 return -1;
519 }
520 return bsd_ctrl_iface(priv, 1);
521}
522
523static void
524bsd_new_sta(void *priv, void *ctx, u8 addr[IEEE80211_ADDR_LEN])
525{
526 struct ieee80211req_wpaie ie;
527 int ielen = 0;
528 u8 *iebuf = NULL;
529
530 /*
531 * Fetch and validate any negotiated WPA/RSN parameters.
532 */
533 memset(&ie, 0, sizeof(ie));
534 memcpy(ie.wpa_macaddr, addr, IEEE80211_ADDR_LEN);
535 if (get80211var(priv, IEEE80211_IOC_WPAIE, &ie, sizeof(ie)) < 0) {
536 wpa_printf(MSG_INFO,
537 "Failed to get WPA/RSN information element");
538 goto no_ie;
539 }
540 iebuf = ie.wpa_ie;
541 ielen = ie.wpa_ie[1];
542 if (ielen == 0)
543 iebuf = NULL;
544 else
545 ielen += 2;
546
547no_ie:
548 drv_event_assoc(ctx, addr, iebuf, ielen, 0);
549}
550
551static int
552bsd_send_eapol(void *priv, const u8 *addr, const u8 *data, size_t data_len,
553 int encrypt, const u8 *own_addr, u32 flags)
554{
555 struct bsd_driver_data *drv = priv;
556
557 wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", data, data_len);
558
559 return l2_packet_send(drv->sock_xmit, addr, ETH_P_EAPOL, data,
560 data_len);
561}
562
563static int
564bsd_set_freq(void *priv, struct hostapd_freq_params *freq)
565{
566 struct bsd_driver_data *drv = priv;
567#ifdef SIOCS80211CHANNEL
568 struct ieee80211chanreq creq;
569#endif /* SIOCS80211CHANNEL */
570 u32 mode;
571 int channel = freq->channel;
572
573 if (channel < 14) {
574 mode =
575#ifdef CONFIG_IEEE80211N
576 freq->ht_enabled ? IFM_IEEE80211_11NG :
577#endif /* CONFIG_IEEE80211N */
578 IFM_IEEE80211_11G;
579 } else if (channel == 14) {
580 mode = IFM_IEEE80211_11B;
581 } else {
582 mode =
583#ifdef CONFIG_IEEE80211N
584 freq->ht_enabled ? IFM_IEEE80211_11NA :
585#endif /* CONFIG_IEEE80211N */
586 IFM_IEEE80211_11A;
587 }
588 if (bsd_set_mediaopt(drv, IFM_MMASK, mode) < 0) {
589 wpa_printf(MSG_ERROR, "%s: failed to set modulation mode",
590 __func__);
591 return -1;
592 }
593
594#ifdef SIOCS80211CHANNEL
595 os_memset(&creq, 0, sizeof(creq));
596 os_strlcpy(creq.i_name, drv->ifname, sizeof(creq.i_name));
597 creq.i_channel = (u_int16_t)channel;
598 return ioctl(drv->global->sock, SIOCS80211CHANNEL, &creq);
599#else /* SIOCS80211CHANNEL */
600 return set80211param(priv, IEEE80211_IOC_CHANNEL, channel);
601#endif /* SIOCS80211CHANNEL */
602}
603
604static int
605bsd_set_opt_ie(void *priv, const u8 *ie, size_t ie_len)
606{
607#ifdef IEEE80211_IOC_APPIE
608 wpa_printf(MSG_DEBUG, "%s: set WPA+RSN ie (len %lu)", __func__,
609 (unsigned long)ie_len);
610 return bsd_set80211(priv, IEEE80211_IOC_APPIE, IEEE80211_APPIE_WPA,
611 ie, ie_len);
612#endif /* IEEE80211_IOC_APPIE */
613 return 0;
614}
615
616static size_t
617rtbuf_len(void)
618{
619 size_t len;
620
621 int mib[6] = {CTL_NET, AF_ROUTE, 0, AF_INET, NET_RT_DUMP, 0};
622
623 if (sysctl(mib, 6, NULL, &len, NULL, 0) < 0) {
624 wpa_printf(MSG_WARNING, "%s failed: %s", __func__,
625 strerror(errno));
626 len = 2048;
627 }
628
629 return len;
630}
631
632#ifdef HOSTAPD
633
634/*
635 * Avoid conflicts with hostapd definitions by undefining couple of defines
636 * from net80211 header files.
637 */
638#undef RSN_VERSION
639#undef WPA_VERSION
640#undef WPA_OUI_TYPE
641
642static int bsd_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
643 int reason_code);
644
645static const char *
646ether_sprintf(const u8 *addr)
647{
648 static char buf[sizeof(MACSTR)];
649
650 if (addr != NULL)
651 snprintf(buf, sizeof(buf), MACSTR, MAC2STR(addr));
652 else
653 snprintf(buf, sizeof(buf), MACSTR, 0,0,0,0,0,0);
654 return buf;
655}
656
657static int
658bsd_set_privacy(void *priv, int enabled)
659{
660 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
661
662 return set80211param(priv, IEEE80211_IOC_PRIVACY, enabled);
663}
664
665static int
666bsd_get_seqnum(const char *ifname, void *priv, const u8 *addr, int idx,
667 u8 *seq)
668{
669 struct ieee80211req_key wk;
670
671 wpa_printf(MSG_DEBUG, "%s: addr=%s idx=%d",
672 __func__, ether_sprintf(addr), idx);
673
674 memset(&wk, 0, sizeof(wk));
675 if (addr == NULL)
676 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
677 else
678 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
679 wk.ik_keyix = idx;
680
681 if (get80211var(priv, IEEE80211_IOC_WPAKEY, &wk, sizeof(wk)) < 0) {
682 wpa_printf(MSG_INFO, "Failed to get encryption");
683 return -1;
684 }
685
686#ifdef WORDS_BIGENDIAN
687 {
688 /*
689 * wk.ik_keytsc is in host byte order (big endian), need to
690 * swap it to match with the byte order used in WPA.
691 */
692 int i;
693 u8 tmp[WPA_KEY_RSC_LEN];
694 memcpy(tmp, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
695 for (i = 0; i < WPA_KEY_RSC_LEN; i++) {
696 seq[i] = tmp[WPA_KEY_RSC_LEN - i - 1];
697 }
698 }
699#else /* WORDS_BIGENDIAN */
700 memcpy(seq, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
701#endif /* WORDS_BIGENDIAN */
702 return 0;
703}
704
705
706static int
707bsd_flush(void *priv)
708{
709 u8 allsta[IEEE80211_ADDR_LEN];
710
711 memset(allsta, 0xff, IEEE80211_ADDR_LEN);
712 return bsd_sta_deauth(priv, NULL, allsta, IEEE80211_REASON_AUTH_LEAVE);
713}
714
715
716static int
717bsd_read_sta_driver_data(void *priv, struct hostap_sta_driver_data *data,
718 const u8 *addr)
719{
720 struct ieee80211req_sta_stats stats;
721
722 memcpy(stats.is_u.macaddr, addr, IEEE80211_ADDR_LEN);
723 if (get80211var(priv, IEEE80211_IOC_STA_STATS, &stats, sizeof(stats))
724 > 0) {
725 /* XXX? do packets counts include non-data frames? */
726 data->rx_packets = stats.is_stats.ns_rx_data;
727 data->rx_bytes = stats.is_stats.ns_rx_bytes;
728 data->tx_packets = stats.is_stats.ns_tx_data;
729 data->tx_bytes = stats.is_stats.ns_tx_bytes;
730 }
731 return 0;
732}
733
734static int
735bsd_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, int reason_code)
736{
737 return bsd_send_mlme_param(priv, IEEE80211_MLME_DEAUTH, reason_code,
738 addr);
739}
740
741static int
742bsd_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
743 int reason_code)
744{
745 return bsd_send_mlme_param(priv, IEEE80211_MLME_DISASSOC, reason_code,
746 addr);
747}
748
749static void
750bsd_wireless_event_receive(int sock, void *ctx, void *sock_ctx)
751{
752 struct bsd_driver_global *global = sock_ctx;
753 struct bsd_driver_data *drv;
754 struct if_announcemsghdr *ifan;
755 struct rt_msghdr *rtm;
756 struct ieee80211_michael_event *mic;
757 struct ieee80211_join_event *join;
758 struct ieee80211_leave_event *leave;
759 int n;
760 union wpa_event_data data;
761
762 n = read(sock, global->event_buf, global->event_buf_len);
763 if (n < 0) {
764 if (errno != EINTR && errno != EAGAIN)
765 wpa_printf(MSG_ERROR, "%s read() failed: %s",
766 __func__, strerror(errno));
767 return;
768 }
769
770 rtm = (struct rt_msghdr *) global->event_buf;
771 if (rtm->rtm_version != RTM_VERSION) {
772 wpa_printf(MSG_DEBUG, "Invalid routing message version=%d",
773 rtm->rtm_version);
774 return;
775 }
776 drv = bsd_get_drvindex(global, rtm->rtm_index);
777 if (drv == NULL)
778 return;
779 switch (rtm->rtm_type) {
780 case RTM_IEEE80211:
781 ifan = (struct if_announcemsghdr *) rtm;
782 switch (ifan->ifan_what) {
783 case RTM_IEEE80211_ASSOC:
784 case RTM_IEEE80211_REASSOC:
785 case RTM_IEEE80211_DISASSOC:
786 case RTM_IEEE80211_SCAN:
787 break;
788 case RTM_IEEE80211_LEAVE:
789 leave = (struct ieee80211_leave_event *) &ifan[1];
790 drv_event_disassoc(drv->hapd, leave->iev_addr);
791 break;
792 case RTM_IEEE80211_JOIN:
793#ifdef RTM_IEEE80211_REJOIN
794 case RTM_IEEE80211_REJOIN:
795#endif
796 join = (struct ieee80211_join_event *) &ifan[1];
797 bsd_new_sta(drv, drv->hapd, join->iev_addr);
798 break;
799 case RTM_IEEE80211_REPLAY:
800 /* ignore */
801 break;
802 case RTM_IEEE80211_MICHAEL:
803 mic = (struct ieee80211_michael_event *) &ifan[1];
804 wpa_printf(MSG_DEBUG,
805 "Michael MIC failure wireless event: "
806 "keyix=%u src_addr=" MACSTR, mic->iev_keyix,
807 MAC2STR(mic->iev_src));
808 os_memset(&data, 0, sizeof(data));
809 data.michael_mic_failure.unicast = 1;
810 data.michael_mic_failure.src = mic->iev_src;
811 wpa_supplicant_event(drv->hapd,
812 EVENT_MICHAEL_MIC_FAILURE, &data);
813 break;
814 }
815 break;
816 }
817}
818
819static void
820handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
821{
822 struct bsd_driver_data *drv = ctx;
823 drv_event_eapol_rx(drv->hapd, src_addr, buf, len);
824}
825
826static void *
827bsd_init(struct hostapd_data *hapd, struct wpa_init_params *params)
828{
829 struct bsd_driver_data *drv;
830
831 drv = os_zalloc(sizeof(struct bsd_driver_data));
832 if (drv == NULL) {
833 wpa_printf(MSG_ERROR, "Could not allocate memory for bsd driver data");
834 return NULL;
835 }
836
837 drv->ifindex = if_nametoindex(params->ifname);
838 if (drv->ifindex == 0) {
839 wpa_printf(MSG_DEBUG, "%s: interface %s does not exist",
840 __func__, params->ifname);
841 goto bad;
842 }
843
844 drv->hapd = hapd;
845 drv->global = params->global_priv;
846 os_strlcpy(drv->ifname, params->ifname, sizeof(drv->ifname));
847
848 drv->sock_xmit = l2_packet_init(drv->ifname, NULL, ETH_P_EAPOL,
849 handle_read, drv, 0);
850 if (drv->sock_xmit == NULL)
851 goto bad;
852 if (l2_packet_get_own_addr(drv->sock_xmit, params->own_addr))
853 goto bad;
854
855 /* mark down during setup */
856 if (bsd_ctrl_iface(drv, 0) < 0)
857 goto bad;
858
859 if (bsd_set_mediaopt(drv, IFM_OMASK, IFM_IEEE80211_HOSTAP) < 0) {
860 wpa_printf(MSG_ERROR, "%s: failed to set operation mode",
861 __func__);
862 goto bad;
863 }
864
865 dl_list_add(&drv->global->ifaces, &drv->list);
866
867 return drv;
868bad:
869 if (drv->sock_xmit != NULL)
870 l2_packet_deinit(drv->sock_xmit);
871 os_free(drv);
872 return NULL;
873}
874
875
876static void
877bsd_deinit(void *priv)
878{
879 struct bsd_driver_data *drv = priv;
880
881 bsd_ctrl_iface(drv, 0);
882 if (drv->sock_xmit != NULL)
883 l2_packet_deinit(drv->sock_xmit);
884 os_free(drv);
885}
886
887
888static int
889bsd_commit(void *priv)
890{
891 return bsd_ctrl_iface(priv, 1);
892}
893
894
895static int
896bsd_set_sta_authorized(void *priv, const u8 *addr,
897 unsigned int total_flags, unsigned int flags_or,
898 unsigned int flags_and)
899{
900 int authorized = -1;
901
902 /* For now, only support setting Authorized flag */
903 if (flags_or & WPA_STA_AUTHORIZED)
904 authorized = 1;
905 if (!(flags_and & WPA_STA_AUTHORIZED))
906 authorized = 0;
907
908 if (authorized < 0)
909 return 0;
910
911 return bsd_send_mlme_param(priv, authorized ?
912 IEEE80211_MLME_AUTHORIZE :
913 IEEE80211_MLME_UNAUTHORIZE, 0, addr);
914}
915#else /* HOSTAPD */
916
917static int
918get80211param(struct bsd_driver_data *drv, int op)
919{
920 struct ieee80211req ireq;
921
922 if (bsd_get80211(drv, &ireq, op, NULL, 0) < 0)
923 return -1;
924 return ireq.i_val;
925}
926
927static int
928wpa_driver_bsd_get_bssid(void *priv, u8 *bssid)
929{
930 struct bsd_driver_data *drv = priv;
931#ifdef SIOCG80211BSSID
932 struct ieee80211_bssid bs;
933
934 os_strlcpy(bs.i_name, drv->ifname, sizeof(bs.i_name));
935 if (ioctl(drv->global->sock, SIOCG80211BSSID, &bs) < 0)
936 return -1;
937 os_memcpy(bssid, bs.i_bssid, sizeof(bs.i_bssid));
938 return 0;
939#else
940 return get80211var(drv, IEEE80211_IOC_BSSID,
941 bssid, IEEE80211_ADDR_LEN) < 0 ? -1 : 0;
942#endif
943}
944
945static int
946wpa_driver_bsd_get_ssid(void *priv, u8 *ssid)
947{
948 struct bsd_driver_data *drv = priv;
949 return bsd_get_ssid(drv, ssid, 0);
950}
951
952static int
953wpa_driver_bsd_set_wpa_ie(struct bsd_driver_data *drv, const u8 *wpa_ie,
954 size_t wpa_ie_len)
955{
956#ifdef IEEE80211_IOC_APPIE
957 return bsd_set_opt_ie(drv, wpa_ie, wpa_ie_len);
958#else /* IEEE80211_IOC_APPIE */
959 return set80211var(drv, IEEE80211_IOC_OPTIE, wpa_ie, wpa_ie_len);
960#endif /* IEEE80211_IOC_APPIE */
961}
962
963static int
964wpa_driver_bsd_set_wpa_internal(void *priv, int wpa, int privacy)
965{
966 int ret = 0;
967
968 wpa_printf(MSG_DEBUG, "%s: wpa=%d privacy=%d",
969 __func__, wpa, privacy);
970
971 if (!wpa && wpa_driver_bsd_set_wpa_ie(priv, NULL, 0) < 0)
972 ret = -1;
973 if (set80211param(priv, IEEE80211_IOC_PRIVACY, privacy) < 0)
974 ret = -1;
975 if (set80211param(priv, IEEE80211_IOC_WPA, wpa) < 0)
976 ret = -1;
977
978 return ret;
979}
980
981static int
982wpa_driver_bsd_set_wpa(void *priv, int enabled)
983{
984 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
985
986 return wpa_driver_bsd_set_wpa_internal(priv, enabled ? 3 : 0, enabled);
987}
988
989static int
990wpa_driver_bsd_set_countermeasures(void *priv, int enabled)
991{
992 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
993 return set80211param(priv, IEEE80211_IOC_COUNTERMEASURES, enabled);
994}
995
996
997static int
998wpa_driver_bsd_set_drop_unencrypted(void *priv, int enabled)
999{
1000 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
1001 return set80211param(priv, IEEE80211_IOC_DROPUNENCRYPTED, enabled);
1002}
1003
1004static int
1005wpa_driver_bsd_deauthenticate(void *priv, const u8 *addr, int reason_code)
1006{
1007 return bsd_send_mlme_param(priv, IEEE80211_MLME_DEAUTH, reason_code,
1008 addr);
1009}
1010
1011static int
1012wpa_driver_bsd_set_auth_alg(void *priv, int auth_alg)
1013{
1014 int authmode;
1015
1016 if ((auth_alg & WPA_AUTH_ALG_OPEN) &&
1017 (auth_alg & WPA_AUTH_ALG_SHARED))
1018 authmode = IEEE80211_AUTH_AUTO;
1019 else if (auth_alg & WPA_AUTH_ALG_SHARED)
1020 authmode = IEEE80211_AUTH_SHARED;
1021 else
1022 authmode = IEEE80211_AUTH_OPEN;
1023
1024 return set80211param(priv, IEEE80211_IOC_AUTHMODE, authmode);
1025}
1026
1027static void
1028handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
1029{
1030 struct bsd_driver_data *drv = ctx;
1031
1032 drv_event_eapol_rx(drv->ctx, src_addr, buf, len);
1033}
1034
1035static int
1036wpa_driver_bsd_associate(void *priv, struct wpa_driver_associate_params *params)
1037{
1038 struct bsd_driver_data *drv = priv;
1039 struct ieee80211req_mlme mlme;
1040 u32 mode;
1041 int privacy;
1042 int ret = 0;
1043
1044 wpa_printf(MSG_DEBUG,
1045 "%s: ssid '%.*s' wpa ie len %u pairwise %u group %u key mgmt %u"
1046 , __func__
1047 , (unsigned int) params->ssid_len, params->ssid
1048 , (unsigned int) params->wpa_ie_len
1049 , params->pairwise_suite
1050 , params->group_suite
1051 , params->key_mgmt_suite
1052 );
1053
1054 switch (params->mode) {
1055 case IEEE80211_MODE_INFRA:
1056 mode = 0 /* STA */;
1057 break;
1058 case IEEE80211_MODE_IBSS:
1059 mode = IFM_IEEE80211_IBSS;
1060 break;
1061 case IEEE80211_MODE_AP:
1062 mode = IFM_IEEE80211_HOSTAP;
1063 break;
1064 default:
1065 wpa_printf(MSG_ERROR, "%s: unknown operation mode", __func__);
1066 return -1;
1067 }
1068 if (bsd_set_mediaopt(drv, IFM_OMASK, mode) < 0) {
1069 wpa_printf(MSG_ERROR, "%s: failed to set operation mode",
1070 __func__);
1071 return -1;
1072 }
1073
1074 if (params->mode == IEEE80211_MODE_AP) {
1075 drv->sock_xmit = l2_packet_init(drv->ifname, NULL, ETH_P_EAPOL,
1076 handle_read, drv, 0);
1077 if (drv->sock_xmit == NULL)
1078 return -1;
1079 drv->is_ap = 1;
1080 return 0;
1081 }
1082
1083 if (wpa_driver_bsd_set_drop_unencrypted(drv, params->drop_unencrypted)
1084 < 0)
1085 ret = -1;
1086 if (wpa_driver_bsd_set_auth_alg(drv, params->auth_alg) < 0)
1087 ret = -1;
1088 /* XXX error handling is wrong but unclear what to do... */
1089 if (wpa_driver_bsd_set_wpa_ie(drv, params->wpa_ie, params->wpa_ie_len) < 0)
1090 return -1;
1091
1092 privacy = !(params->pairwise_suite == WPA_CIPHER_NONE &&
1093 params->group_suite == WPA_CIPHER_NONE &&
1094 params->key_mgmt_suite == WPA_KEY_MGMT_NONE &&
1095 params->wpa_ie_len == 0);
1096 wpa_printf(MSG_DEBUG, "%s: set PRIVACY %u", __func__, privacy);
1097
1098 if (set80211param(drv, IEEE80211_IOC_PRIVACY, privacy) < 0)
1099 return -1;
1100
1101 if (params->wpa_ie_len &&
1102 set80211param(drv, IEEE80211_IOC_WPA,
1103 params->wpa_ie[0] == WLAN_EID_RSN ? 2 : 1) < 0)
1104 return -1;
1105
1106 os_memset(&mlme, 0, sizeof(mlme));
1107 mlme.im_op = IEEE80211_MLME_ASSOC;
1108 if (params->ssid != NULL)
1109 os_memcpy(mlme.im_ssid, params->ssid, params->ssid_len);
1110 mlme.im_ssid_len = params->ssid_len;
1111 if (params->bssid != NULL)
1112 os_memcpy(mlme.im_macaddr, params->bssid, IEEE80211_ADDR_LEN);
1113 if (set80211var(drv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme)) < 0)
1114 return -1;
1115 return ret;
1116}
1117
1118static int
1119wpa_driver_bsd_scan(void *priv, struct wpa_driver_scan_params *params)
1120{
1121 struct bsd_driver_data *drv = priv;
1122#ifdef IEEE80211_IOC_SCAN_MAX_SSID
1123 struct ieee80211_scan_req sr;
1124 int i;
1125#endif /* IEEE80211_IOC_SCAN_MAX_SSID */
1126
1127 if (bsd_set_mediaopt(drv, IFM_OMASK, 0 /* STA */) < 0) {
1128 wpa_printf(MSG_ERROR, "%s: failed to set operation mode",
1129 __func__);
1130 return -1;
1131 }
1132
1133 if (set80211param(drv, IEEE80211_IOC_ROAMING,
1134 IEEE80211_ROAMING_MANUAL) < 0) {
1135 wpa_printf(MSG_ERROR, "%s: failed to set "
1136 "wpa_supplicant-based roaming: %s", __func__,
1137 strerror(errno));
1138 return -1;
1139 }
1140
1141 if (wpa_driver_bsd_set_wpa(drv, 1) < 0) {
1142 wpa_printf(MSG_ERROR, "%s: failed to set wpa: %s", __func__,
1143 strerror(errno));
1144 return -1;
1145 }
1146
1147 /* NB: interface must be marked UP to do a scan */
1148 if (bsd_ctrl_iface(drv, 1) < 0)
1149 return -1;
1150
1151#ifdef IEEE80211_IOC_SCAN_MAX_SSID
1152 os_memset(&sr, 0, sizeof(sr));
1153 sr.sr_flags = IEEE80211_IOC_SCAN_ACTIVE | IEEE80211_IOC_SCAN_ONCE |
1154 IEEE80211_IOC_SCAN_NOJOIN;
1155 sr.sr_duration = IEEE80211_IOC_SCAN_FOREVER;
1156 if (params->num_ssids > 0) {
1157 sr.sr_nssid = params->num_ssids;
1158#if 0
1159 /* Boundary check is done by upper layer */
1160 if (sr.sr_nssid > IEEE80211_IOC_SCAN_MAX_SSID)
1161 sr.sr_nssid = IEEE80211_IOC_SCAN_MAX_SSID;
1162#endif
1163
1164 /* NB: check scan cache first */
1165 sr.sr_flags |= IEEE80211_IOC_SCAN_CHECK;
1166 }
1167 for (i = 0; i < sr.sr_nssid; i++) {
1168 sr.sr_ssid[i].len = params->ssids[i].ssid_len;
1169 os_memcpy(sr.sr_ssid[i].ssid, params->ssids[i].ssid,
1170 sr.sr_ssid[i].len);
1171 }
1172
1173 /* NB: net80211 delivers a scan complete event so no need to poll */
1174 return set80211var(drv, IEEE80211_IOC_SCAN_REQ, &sr, sizeof(sr));
1175#else /* IEEE80211_IOC_SCAN_MAX_SSID */
1176 /* set desired ssid before scan */
1177 if (bsd_set_ssid(drv, params->ssids[0].ssid,
1178 params->ssids[0].ssid_len) < 0)
1179 return -1;
1180
1181 /* NB: net80211 delivers a scan complete event so no need to poll */
1182 return set80211param(drv, IEEE80211_IOC_SCAN_REQ, 0);
1183#endif /* IEEE80211_IOC_SCAN_MAX_SSID */
1184}
1185
1186static void
1187wpa_driver_bsd_event_receive(int sock, void *ctx, void *sock_ctx)
1188{
1189 struct bsd_driver_global *global = sock_ctx;
1190 struct bsd_driver_data *drv;
1191 struct if_announcemsghdr *ifan;
1192 struct rt_msghdr *rtm;
1193 union wpa_event_data event;
1194 struct ieee80211_michael_event *mic;
1195 struct ieee80211_leave_event *leave;
1196 struct ieee80211_join_event *join;
1197 int n;
1198
1199 n = read(sock, global->event_buf, global->event_buf_len);
1200 if (n < 0) {
1201 if (errno != EINTR && errno != EAGAIN)
1202 wpa_printf(MSG_ERROR, "%s read() failed: %s",
1203 __func__, strerror(errno));
1204 return;
1205 }
1206
1207 rtm = (struct rt_msghdr *) global->event_buf;
1208 if (rtm->rtm_version != RTM_VERSION) {
1209 wpa_printf(MSG_DEBUG, "Invalid routing message version=%d",
1210 rtm->rtm_version);
1211 return;
1212 }
1213 drv = bsd_get_drvindex(global, rtm->rtm_index);
1214 if (drv == NULL)
1215 return;
1216 ctx = drv->ctx;
1217 os_memset(&event, 0, sizeof(event));
1218 switch (rtm->rtm_type) {
1219 case RTM_IFANNOUNCE:
1220 ifan = (struct if_announcemsghdr *) rtm;
1221 os_strlcpy(event.interface_status.ifname, drv->ifname,
1222 sizeof(event.interface_status.ifname));
1223 switch (ifan->ifan_what) {
1224 case IFAN_DEPARTURE:
1225 event.interface_status.ievent = EVENT_INTERFACE_REMOVED;
1226 default:
1227 return;
1228 }
1229 wpa_printf(MSG_DEBUG, "RTM_IFANNOUNCE: Interface '%s' %s",
1230 event.interface_status.ifname,
1231 ifan->ifan_what == IFAN_DEPARTURE ?
1232 "removed" : "added");
1233 wpa_supplicant_event(ctx, EVENT_INTERFACE_STATUS, &event);
1234 break;
1235 case RTM_IEEE80211:
1236 ifan = (struct if_announcemsghdr *) rtm;
1237 switch (ifan->ifan_what) {
1238 case RTM_IEEE80211_ASSOC:
1239 case RTM_IEEE80211_REASSOC:
1240 if (drv->is_ap)
1241 break;
1242 wpa_supplicant_event(ctx, EVENT_ASSOC, NULL);
1243 break;
1244 case RTM_IEEE80211_DISASSOC:
1245 if (drv->is_ap)
1246 break;
1247 wpa_supplicant_event(ctx, EVENT_DISASSOC, NULL);
1248 break;
1249 case RTM_IEEE80211_SCAN:
1250 if (drv->is_ap)
1251 break;
1252 wpa_supplicant_event(ctx, EVENT_SCAN_RESULTS, NULL);
1253 break;
1254 case RTM_IEEE80211_LEAVE:
1255 leave = (struct ieee80211_leave_event *) &ifan[1];
1256 drv_event_disassoc(ctx, leave->iev_addr);
1257 break;
1258 case RTM_IEEE80211_JOIN:
1259#ifdef RTM_IEEE80211_REJOIN
1260 case RTM_IEEE80211_REJOIN:
1261#endif
1262 join = (struct ieee80211_join_event *) &ifan[1];
1263 bsd_new_sta(drv, ctx, join->iev_addr);
1264 break;
1265 case RTM_IEEE80211_REPLAY:
1266 /* ignore */
1267 break;
1268 case RTM_IEEE80211_MICHAEL:
1269 mic = (struct ieee80211_michael_event *) &ifan[1];
1270 wpa_printf(MSG_DEBUG,
1271 "Michael MIC failure wireless event: "
1272 "keyix=%u src_addr=" MACSTR, mic->iev_keyix,
1273 MAC2STR(mic->iev_src));
1274
1275 os_memset(&event, 0, sizeof(event));
1276 event.michael_mic_failure.unicast =
1277 !IEEE80211_IS_MULTICAST(mic->iev_dst);
1278 wpa_supplicant_event(ctx, EVENT_MICHAEL_MIC_FAILURE,
1279 &event);
1280 break;
1281 }
1282 break;
1283 case RTM_IFINFO:
1284 if ((rtm->rtm_flags & RTF_UP) == 0) {
1285 os_strlcpy(event.interface_status.ifname, drv->ifname,
1286 sizeof(event.interface_status.ifname));
1287 event.interface_status.ievent = EVENT_INTERFACE_REMOVED;
1288 wpa_printf(MSG_DEBUG, "RTM_IFINFO: Interface '%s' DOWN",
1289 event.interface_status.ifname);
1290 wpa_supplicant_event(ctx, EVENT_INTERFACE_STATUS, &event);
1291 }
1292 break;
1293 }
1294}
1295
1296static void
1297wpa_driver_bsd_add_scan_entry(struct wpa_scan_results *res,
1298 struct ieee80211req_scan_result *sr)
1299{
1300 struct wpa_scan_res *result, **tmp;
1301 size_t extra_len;
1302 u8 *pos;
1303
1304 extra_len = 2 + sr->isr_ssid_len;
1305 extra_len += 2 + sr->isr_nrates;
1306 extra_len += 3; /* ERP IE */
1307 extra_len += sr->isr_ie_len;
1308
1309 result = os_zalloc(sizeof(*result) + extra_len);
1310 if (result == NULL)
1311 return;
1312 os_memcpy(result->bssid, sr->isr_bssid, ETH_ALEN);
1313 result->freq = sr->isr_freq;
1314 result->beacon_int = sr->isr_intval;
1315 result->caps = sr->isr_capinfo;
1316 result->qual = sr->isr_rssi;
1317 result->noise = sr->isr_noise;
1318 /*
1319 * the rssi value reported by the kernel is in 0.5dB steps relative to
1320 * the reported noise floor. see ieee80211_node.h for details.
1321 */
1322 result->level = sr->isr_rssi / 2 + sr->isr_noise;
1323
1324 pos = (u8 *)(result + 1);
1325
1326 *pos++ = WLAN_EID_SSID;
1327 *pos++ = sr->isr_ssid_len;
1328 os_memcpy(pos, sr + 1, sr->isr_ssid_len);
1329 pos += sr->isr_ssid_len;
1330
1331 /*
1332 * Deal all rates as supported rate.
1333 * Because net80211 doesn't report extended supported rate or not.
1334 */
1335 *pos++ = WLAN_EID_SUPP_RATES;
1336 *pos++ = sr->isr_nrates;
1337 os_memcpy(pos, sr->isr_rates, sr->isr_nrates);
1338 pos += sr->isr_nrates;
1339
1340 *pos++ = WLAN_EID_ERP_INFO;
1341 *pos++ = 1;
1342 *pos++ = sr->isr_erp;
1343
1344#if defined(__DragonFly__) || defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
1345 os_memcpy(pos, (u8 *)(sr + 1) + sr->isr_ssid_len + sr->isr_meshid_len,
1346 sr->isr_ie_len);
1347#else
1348 os_memcpy(pos, (u8 *)(sr + 1) + sr->isr_ssid_len, sr->isr_ie_len);
1349#endif
1350 pos += sr->isr_ie_len;
1351
1352 result->ie_len = pos - (u8 *)(result + 1);
1353
1354 tmp = os_realloc_array(res->res, res->num + 1,
1355 sizeof(struct wpa_scan_res *));
1356 if (tmp == NULL) {
1357 os_free(result);
1358 return;
1359 }
1360 tmp[res->num++] = result;
1361 res->res = tmp;
1362}
1363
1364struct wpa_scan_results *
1365wpa_driver_bsd_get_scan_results2(void *priv)
1366{
1367 struct ieee80211req_scan_result *sr;
1368 struct wpa_scan_results *res;
1369 int len, rest;
1370 uint8_t buf[24*1024], *pos;
1371
1372 len = get80211var(priv, IEEE80211_IOC_SCAN_RESULTS, buf, 24*1024);
1373 if (len < 0)
1374 return NULL;
1375
1376 res = os_zalloc(sizeof(*res));
1377 if (res == NULL)
1378 return NULL;
1379
1380 pos = buf;
1381 rest = len;
1382 while (rest >= sizeof(struct ieee80211req_scan_result)) {
1383 sr = (struct ieee80211req_scan_result *)pos;
1384 wpa_driver_bsd_add_scan_entry(res, sr);
1385 pos += sr->isr_len;
1386 rest -= sr->isr_len;
1387 }
1388
1389 wpa_printf(MSG_DEBUG, "Received %d bytes of scan results (%lu BSSes)",
1390 len, (unsigned long)res->num);
1391
1392 return res;
1393}
1394
1395static int wpa_driver_bsd_capa(struct bsd_driver_data *drv)
1396{
1397#ifdef IEEE80211_IOC_DEVCAPS
1398/* kernel definitions copied from net80211/ieee80211_var.h */
1399#define IEEE80211_CIPHER_WEP 0
1400#define IEEE80211_CIPHER_TKIP 1
1401#define IEEE80211_CIPHER_AES_CCM 3
1402#define IEEE80211_CRYPTO_WEP (1<<IEEE80211_CIPHER_WEP)
1403#define IEEE80211_CRYPTO_TKIP (1<<IEEE80211_CIPHER_TKIP)
1404#define IEEE80211_CRYPTO_AES_CCM (1<<IEEE80211_CIPHER_AES_CCM)
1405#define IEEE80211_C_HOSTAP 0x00000400 /* CAPABILITY: HOSTAP avail */
1406#define IEEE80211_C_WPA1 0x00800000 /* CAPABILITY: WPA1 avail */
1407#define IEEE80211_C_WPA2 0x01000000 /* CAPABILITY: WPA2 avail */
1408 struct ieee80211_devcaps_req devcaps;
1409
1410 if (get80211var(drv, IEEE80211_IOC_DEVCAPS, &devcaps,
1411 sizeof(devcaps)) < 0) {
1412 wpa_printf(MSG_ERROR, "failed to IEEE80211_IOC_DEVCAPS: %s",
1413 strerror(errno));
1414 return -1;
1415 }
1416
1417 wpa_printf(MSG_DEBUG, "%s: drivercaps=0x%08x,cryptocaps=0x%08x",
1418 __func__, devcaps.dc_drivercaps, devcaps.dc_cryptocaps);
1419
1420 if (devcaps.dc_drivercaps & IEEE80211_C_WPA1)
1421 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
1422 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK;
1423 if (devcaps.dc_drivercaps & IEEE80211_C_WPA2)
1424 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
1425 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
1426
1427 if (devcaps.dc_cryptocaps & IEEE80211_CRYPTO_WEP)
1428 drv->capa.enc |= WPA_DRIVER_CAPA_ENC_WEP40 |
1429 WPA_DRIVER_CAPA_ENC_WEP104;
1430 if (devcaps.dc_cryptocaps & IEEE80211_CRYPTO_TKIP)
1431 drv->capa.enc |= WPA_DRIVER_CAPA_ENC_TKIP;
1432 if (devcaps.dc_cryptocaps & IEEE80211_CRYPTO_AES_CCM)
1433 drv->capa.enc |= WPA_DRIVER_CAPA_ENC_CCMP;
1434
1435 if (devcaps.dc_drivercaps & IEEE80211_C_HOSTAP)
1436 drv->capa.flags |= WPA_DRIVER_FLAGS_AP;
1437#undef IEEE80211_CIPHER_WEP
1438#undef IEEE80211_CIPHER_TKIP
1439#undef IEEE80211_CIPHER_AES_CCM
1440#undef IEEE80211_CRYPTO_WEP
1441#undef IEEE80211_CRYPTO_TKIP
1442#undef IEEE80211_CRYPTO_AES_CCM
1443#undef IEEE80211_C_HOSTAP
1444#undef IEEE80211_C_WPA1
1445#undef IEEE80211_C_WPA2
1446#else /* IEEE80211_IOC_DEVCAPS */
1447 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */
1448 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
1449 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
1450 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
1451 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
1452 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 |
1453 WPA_DRIVER_CAPA_ENC_WEP104 |
1454 WPA_DRIVER_CAPA_ENC_TKIP |
1455 WPA_DRIVER_CAPA_ENC_CCMP;
1456 drv->capa.flags |= WPA_DRIVER_FLAGS_AP;
1457#endif /* IEEE80211_IOC_DEVCAPS */
1458#ifdef IEEE80211_IOC_SCAN_MAX_SSID
1459 drv->capa.max_scan_ssids = IEEE80211_IOC_SCAN_MAX_SSID;
1460#else /* IEEE80211_IOC_SCAN_MAX_SSID */
1461 drv->capa.max_scan_ssids = 1;
1462#endif /* IEEE80211_IOC_SCAN_MAX_SSID */
1463 drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
1464 WPA_DRIVER_AUTH_SHARED |
1465 WPA_DRIVER_AUTH_LEAP;
1466 return 0;
1467}
1468
1469static enum ieee80211_opmode
1470get80211opmode(struct bsd_driver_data *drv)
1471{
1472 struct ifmediareq ifmr;
1473
1474 (void) memset(&ifmr, 0, sizeof(ifmr));
1475 (void) os_strlcpy(ifmr.ifm_name, drv->ifname, sizeof(ifmr.ifm_name));
1476
1477 if (ioctl(drv->global->sock, SIOCGIFMEDIA, (caddr_t)&ifmr) >= 0) {
1478 if (ifmr.ifm_current & IFM_IEEE80211_ADHOC) {
1479 if (ifmr.ifm_current & IFM_FLAG0)
1480 return IEEE80211_M_AHDEMO;
1481 else
1482 return IEEE80211_M_IBSS;
1483 }
1484 if (ifmr.ifm_current & IFM_IEEE80211_HOSTAP)
1485 return IEEE80211_M_HOSTAP;
1486 if (ifmr.ifm_current & IFM_IEEE80211_MONITOR)
1487 return IEEE80211_M_MONITOR;
1488#ifdef IEEE80211_M_MBSS
1489 if (ifmr.ifm_current & IFM_IEEE80211_MBSS)
1490 return IEEE80211_M_MBSS;
1491#endif /* IEEE80211_M_MBSS */
1492 }
1493 return IEEE80211_M_STA;
1494}
1495
1496static void *
1497wpa_driver_bsd_init(void *ctx, const char *ifname, void *priv)
1498{
1499#define GETPARAM(drv, param, v) \
1500 (((v) = get80211param(drv, param)) != -1)
1501 struct bsd_driver_data *drv;
1502
1503 drv = os_zalloc(sizeof(*drv));
1504 if (drv == NULL)
1505 return NULL;
1506
1507 /*
1508 * NB: We require the interface name be mappable to an index.
1509 * This implies we do not support having wpa_supplicant
1510 * wait for an interface to appear. This seems ok; that
1511 * doesn't belong here; it's really the job of devd.
1512 */
1513 drv->ifindex = if_nametoindex(ifname);
1514 if (drv->ifindex == 0) {
1515 wpa_printf(MSG_DEBUG, "%s: interface %s does not exist",
1516 __func__, ifname);
1517 goto fail;
1518 }
1519
1520 drv->ctx = ctx;
1521 drv->global = priv;
1522
1523 os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
1524 /* Down interface during setup. */
1525 if (bsd_ctrl_iface(drv, 0) < 0)
1526 goto fail;
1527
1528 if (!GETPARAM(drv, IEEE80211_IOC_ROAMING, drv->prev_roaming)) {
1529 wpa_printf(MSG_DEBUG, "%s: failed to get roaming state: %s",
1530 __func__, strerror(errno));
1531 goto fail;
1532 }
1533 if (!GETPARAM(drv, IEEE80211_IOC_PRIVACY, drv->prev_privacy)) {
1534 wpa_printf(MSG_DEBUG, "%s: failed to get privacy state: %s",
1535 __func__, strerror(errno));
1536 goto fail;
1537 }
1538 if (!GETPARAM(drv, IEEE80211_IOC_WPA, drv->prev_wpa)) {
1539 wpa_printf(MSG_DEBUG, "%s: failed to get wpa state: %s",
1540 __func__, strerror(errno));
1541 goto fail;
1542 }
1543
1544 if (wpa_driver_bsd_capa(drv))
1545 goto fail;
1546
1547 drv->opmode = get80211opmode(drv);
1548 dl_list_add(&drv->global->ifaces, &drv->list);
1549
1550 return drv;
1551fail:
1552 os_free(drv);
1553 return NULL;
1554#undef GETPARAM
1555}
1556
1557static void
1558wpa_driver_bsd_deinit(void *priv)
1559{
1560 struct bsd_driver_data *drv = priv;
1561
1562 wpa_driver_bsd_set_wpa(drv, 0);
1563
1564 /* NB: mark interface down */
1565 bsd_ctrl_iface(drv, 0);
1566
1567 wpa_driver_bsd_set_wpa_internal(drv, drv->prev_wpa, drv->prev_privacy);
1568
1569 if (set80211param(drv, IEEE80211_IOC_ROAMING, drv->prev_roaming) < 0)
1570 wpa_printf(MSG_DEBUG, "%s: failed to restore roaming state",
1571 __func__);
1572
1573 if (drv->sock_xmit != NULL)
1574 l2_packet_deinit(drv->sock_xmit);
1575 dl_list_del(&drv->list);
1576 os_free(drv);
1577}
1578
1579static int
1580wpa_driver_bsd_get_capa(void *priv, struct wpa_driver_capa *capa)
1581{
1582 struct bsd_driver_data *drv = priv;
1583
1584 os_memcpy(capa, &drv->capa, sizeof(*capa));
1585 return 0;
1586}
1587#endif /* HOSTAPD */
1588
1589static void *
1590bsd_global_init(void)
1591{
1592 struct bsd_driver_global *global;
1593
1594 global = os_zalloc(sizeof(*global));
1595 if (global == NULL)
1596 return NULL;
1597
1598 dl_list_init(&global->ifaces);
1599
1600 global->sock = socket(PF_INET, SOCK_DGRAM, 0);
1601 if (global->sock < 0) {
1602 wpa_printf(MSG_ERROR, "socket[PF_INET,SOCK_DGRAM]: %s",
1603 strerror(errno));
1604 goto fail1;
1605 }
1606
1607 global->route = socket(PF_ROUTE, SOCK_RAW, 0);
1608 if (global->route < 0) {
1609 wpa_printf(MSG_ERROR, "socket[PF_ROUTE,SOCK_RAW]: %s",
1610 strerror(errno));
1611 goto fail;
1612 }
1613
1614 global->event_buf_len = rtbuf_len();
1615 global->event_buf = os_malloc(global->event_buf_len);
1616 if (global->event_buf == NULL) {
1617 wpa_printf(MSG_ERROR, "%s: os_malloc() failed", __func__);
1618 goto fail;
1619 }
1620
1621#ifdef HOSTAPD
1622 eloop_register_read_sock(global->route, bsd_wireless_event_receive,
1623 NULL, global);
1624
1625#else /* HOSTAPD */
1626 eloop_register_read_sock(global->route, wpa_driver_bsd_event_receive,
1627 NULL, global);
1628#endif /* HOSTAPD */
1629
1630 return global;
1631
1632fail:
1633 close(global->sock);
1634fail1:
1635 os_free(global);
1636 return NULL;
1637}
1638
1639static void
1640bsd_global_deinit(void *priv)
1641{
1642 struct bsd_driver_global *global = priv;
1643
1644 eloop_unregister_read_sock(global->route);
1645 (void) close(global->route);
1646 (void) close(global->sock);
1647 os_free(global);
1648}
1649
1650
1651const struct wpa_driver_ops wpa_driver_bsd_ops = {
1652 .name = "bsd",
1653 .desc = "BSD 802.11 support",
1654 .global_init = bsd_global_init,
1655 .global_deinit = bsd_global_deinit,
1656#ifdef HOSTAPD
1657 .hapd_init = bsd_init,
1658 .hapd_deinit = bsd_deinit,
1659 .set_privacy = bsd_set_privacy,
1660 .get_seqnum = bsd_get_seqnum,
1661 .flush = bsd_flush,
1662 .read_sta_data = bsd_read_sta_driver_data,
1663 .sta_disassoc = bsd_sta_disassoc,
1664 .sta_deauth = bsd_sta_deauth,
1665 .sta_set_flags = bsd_set_sta_authorized,
1666 .commit = bsd_commit,
1667#else /* HOSTAPD */
1668 .init2 = wpa_driver_bsd_init,
1669 .deinit = wpa_driver_bsd_deinit,
1670 .get_bssid = wpa_driver_bsd_get_bssid,
1671 .get_ssid = wpa_driver_bsd_get_ssid,
1672 .set_countermeasures = wpa_driver_bsd_set_countermeasures,
1673 .scan2 = wpa_driver_bsd_scan,
1674 .get_scan_results2 = wpa_driver_bsd_get_scan_results2,
1675 .deauthenticate = wpa_driver_bsd_deauthenticate,
1676 .associate = wpa_driver_bsd_associate,
1677 .get_capa = wpa_driver_bsd_get_capa,
1678#endif /* HOSTAPD */
1679 .set_freq = bsd_set_freq,
1680 .set_key = bsd_set_key,
1681 .set_ieee8021x = bsd_set_ieee8021x,
1682 .hapd_set_ssid = bsd_set_ssid,
1683 .hapd_get_ssid = bsd_get_ssid,
1684 .hapd_send_eapol = bsd_send_eapol,
1685 .set_generic_elem = bsd_set_opt_ie,
1686};
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