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bsd: Fix a typo in error message
[thirdparty/hostap.git] / src / drivers / driver_bsd.c
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
50 struct bsd_driver_global {
51 void *ctx;
52 int sock; /* socket for 802.11 ioctls */
53 int route; /* routing socket for events */
54 char *event_buf;
55 size_t event_buf_len;
56 struct dl_list ifaces; /* list of interfaces */
57 };
58
59 struct bsd_driver_data {
60 struct dl_list list;
61 struct bsd_driver_global *global;
62 struct hostapd_data *hapd; /* back pointer */
63
64 struct l2_packet_data *sock_xmit;/* raw packet xmit socket */
65 char ifname[IFNAMSIZ+1]; /* interface name */
66 int flags;
67 unsigned int ifindex; /* interface index */
68 int if_removed; /* has the interface been removed? */
69 void *ctx;
70 struct wpa_driver_capa capa; /* driver capability */
71 int is_ap; /* Access point mode */
72 int prev_roaming; /* roaming state to restore on deinit */
73 int prev_privacy; /* privacy state to restore on deinit */
74 int prev_wpa; /* wpa state to restore on deinit */
75 enum ieee80211_opmode opmode; /* operation mode */
76 };
77
78 /* Generic functions for hostapd and wpa_supplicant */
79
80 static struct bsd_driver_data *
81 bsd_get_drvindex(void *priv, unsigned int ifindex)
82 {
83 struct bsd_driver_global *global = priv;
84 struct bsd_driver_data *drv;
85
86 dl_list_for_each(drv, &global->ifaces, struct bsd_driver_data, list) {
87 if (drv->ifindex == ifindex)
88 return drv;
89 }
90 return NULL;
91 }
92
93 #ifndef HOSTAPD
94 static struct bsd_driver_data *
95 bsd_get_drvname(void *priv, const char *ifname)
96 {
97 struct bsd_driver_global *global = priv;
98 struct bsd_driver_data *drv;
99
100 dl_list_for_each(drv, &global->ifaces, struct bsd_driver_data, list) {
101 if (os_strcmp(drv->ifname, ifname) == 0)
102 return drv;
103 }
104 return NULL;
105 }
106 #endif /* HOSTAPD */
107
108 static int
109 bsd_set80211(void *priv, int op, int val, const void *arg, int arg_len)
110 {
111 struct bsd_driver_data *drv = priv;
112 struct ieee80211req ireq;
113
114 if (drv->ifindex == 0 || drv->if_removed)
115 return -1;
116
117 os_memset(&ireq, 0, sizeof(ireq));
118 os_strlcpy(ireq.i_name, drv->ifname, sizeof(ireq.i_name));
119 ireq.i_type = op;
120 ireq.i_val = val;
121 ireq.i_data = (void *) arg;
122 ireq.i_len = arg_len;
123
124 if (ioctl(drv->global->sock, SIOCS80211, &ireq) < 0) {
125 wpa_printf(MSG_ERROR, "ioctl[SIOCS80211, op=%u, val=%u, "
126 "arg_len=%u]: %s", op, val, arg_len,
127 strerror(errno));
128 return -1;
129 }
130 return 0;
131 }
132
133 static int
134 bsd_get80211(void *priv, struct ieee80211req *ireq, int op, void *arg,
135 int arg_len)
136 {
137 struct bsd_driver_data *drv = priv;
138
139 os_memset(ireq, 0, sizeof(*ireq));
140 os_strlcpy(ireq->i_name, drv->ifname, sizeof(ireq->i_name));
141 ireq->i_type = op;
142 ireq->i_len = arg_len;
143 ireq->i_data = arg;
144
145 if (ioctl(drv->global->sock, SIOCG80211, ireq) < 0) {
146 wpa_printf(MSG_ERROR, "ioctl[SIOCG80211, op=%u, "
147 "arg_len=%u]: %s", op, arg_len, strerror(errno));
148 return -1;
149 }
150 return 0;
151 }
152
153 static int
154 get80211var(struct bsd_driver_data *drv, int op, void *arg, int arg_len)
155 {
156 struct ieee80211req ireq;
157
158 if (bsd_get80211(drv, &ireq, op, arg, arg_len) < 0)
159 return -1;
160 return ireq.i_len;
161 }
162
163 static int
164 set80211var(struct bsd_driver_data *drv, int op, const void *arg, int arg_len)
165 {
166 return bsd_set80211(drv, op, 0, arg, arg_len);
167 }
168
169 static int
170 set80211param(struct bsd_driver_data *drv, int op, int arg)
171 {
172 return bsd_set80211(drv, op, arg, NULL, 0);
173 }
174
175 static int
176 bsd_get_ssid(void *priv, u8 *ssid, int len)
177 {
178 struct bsd_driver_data *drv = priv;
179 #ifdef SIOCG80211NWID
180 struct ieee80211_nwid nwid;
181 struct ifreq ifr;
182
183 os_memset(&ifr, 0, sizeof(ifr));
184 os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
185 ifr.ifr_data = (void *)&nwid;
186 if (ioctl(drv->global->sock, SIOCG80211NWID, &ifr) < 0 ||
187 nwid.i_len > IEEE80211_NWID_LEN)
188 return -1;
189 os_memcpy(ssid, nwid.i_nwid, nwid.i_len);
190 return nwid.i_len;
191 #else
192 return get80211var(drv, IEEE80211_IOC_SSID, ssid, IEEE80211_NWID_LEN);
193 #endif
194 }
195
196 static int
197 bsd_set_ssid(void *priv, const u8 *ssid, int ssid_len)
198 {
199 struct bsd_driver_data *drv = priv;
200 #ifdef SIOCS80211NWID
201 struct ieee80211_nwid nwid;
202 struct ifreq ifr;
203
204 os_memcpy(nwid.i_nwid, ssid, ssid_len);
205 nwid.i_len = ssid_len;
206 os_memset(&ifr, 0, sizeof(ifr));
207 os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
208 ifr.ifr_data = (void *)&nwid;
209 return ioctl(drv->global->sock, SIOCS80211NWID, &ifr);
210 #else
211 return set80211var(drv, IEEE80211_IOC_SSID, ssid, ssid_len);
212 #endif
213 }
214
215 static int
216 bsd_get_if_media(void *priv)
217 {
218 struct bsd_driver_data *drv = priv;
219 struct ifmediareq ifmr;
220
221 os_memset(&ifmr, 0, sizeof(ifmr));
222 os_strlcpy(ifmr.ifm_name, drv->ifname, sizeof(ifmr.ifm_name));
223
224 if (ioctl(drv->global->sock, SIOCGIFMEDIA, &ifmr) < 0) {
225 wpa_printf(MSG_ERROR, "%s: SIOCGIFMEDIA %s", __func__,
226 strerror(errno));
227 return -1;
228 }
229
230 return ifmr.ifm_current;
231 }
232
233 static int
234 bsd_set_if_media(void *priv, int media)
235 {
236 struct bsd_driver_data *drv = priv;
237 struct ifreq ifr;
238
239 os_memset(&ifr, 0, sizeof(ifr));
240 os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
241 ifr.ifr_media = media;
242
243 if (ioctl(drv->global->sock, SIOCSIFMEDIA, &ifr) < 0) {
244 wpa_printf(MSG_ERROR, "%s: SIOCSIFMEDIA %s", __func__,
245 strerror(errno));
246 return -1;
247 }
248
249 return 0;
250 }
251
252 static int
253 bsd_set_mediaopt(void *priv, uint32_t mask, uint32_t mode)
254 {
255 int media = bsd_get_if_media(priv);
256
257 if (media < 0)
258 return -1;
259 media &= ~mask;
260 media |= mode;
261 if (bsd_set_if_media(priv, media) < 0)
262 return -1;
263 return 0;
264 }
265
266 static int
267 bsd_del_key(void *priv, const u8 *addr, int key_idx)
268 {
269 struct ieee80211req_del_key wk;
270
271 os_memset(&wk, 0, sizeof(wk));
272 if (addr == NULL) {
273 wpa_printf(MSG_DEBUG, "%s: key_idx=%d", __func__, key_idx);
274 wk.idk_keyix = key_idx;
275 } else {
276 wpa_printf(MSG_DEBUG, "%s: addr=" MACSTR, __func__,
277 MAC2STR(addr));
278 os_memcpy(wk.idk_macaddr, addr, IEEE80211_ADDR_LEN);
279 wk.idk_keyix = (u_int8_t) IEEE80211_KEYIX_NONE; /* XXX */
280 }
281
282 return set80211var(priv, IEEE80211_IOC_DELKEY, &wk, sizeof(wk));
283 }
284
285 static int
286 bsd_send_mlme_param(void *priv, const u8 op, const u16 reason, const u8 *addr)
287 {
288 struct ieee80211req_mlme mlme;
289
290 os_memset(&mlme, 0, sizeof(mlme));
291 mlme.im_op = op;
292 mlme.im_reason = reason;
293 os_memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
294 return set80211var(priv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme));
295 }
296
297 static int
298 bsd_ctrl_iface(void *priv, int enable)
299 {
300 struct bsd_driver_data *drv = priv;
301 struct ifreq ifr;
302
303 os_memset(&ifr, 0, sizeof(ifr));
304 os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
305
306 if (ioctl(drv->global->sock, SIOCGIFFLAGS, &ifr) < 0) {
307 wpa_printf(MSG_ERROR, "ioctl[SIOCGIFFLAGS]: %s",
308 strerror(errno));
309 return -1;
310 }
311 drv->flags = ifr.ifr_flags;
312
313 if (enable) {
314 if (ifr.ifr_flags & IFF_UP)
315 return 0;
316 ifr.ifr_flags |= IFF_UP;
317 } else {
318 if (!(ifr.ifr_flags & IFF_UP))
319 return 0;
320 ifr.ifr_flags &= ~IFF_UP;
321 }
322
323 if (ioctl(drv->global->sock, SIOCSIFFLAGS, &ifr) < 0) {
324 wpa_printf(MSG_ERROR, "ioctl[SIOCSIFFLAGS]: %s",
325 strerror(errno));
326 return -1;
327 }
328
329 drv->flags = ifr.ifr_flags;
330 return 0;
331 }
332
333 static int
334 bsd_set_key(const char *ifname, void *priv, enum wpa_alg alg,
335 const unsigned char *addr, int key_idx, int set_tx, const u8 *seq,
336 size_t seq_len, const u8 *key, size_t key_len)
337 {
338 struct ieee80211req_key wk;
339 #ifdef IEEE80211_KEY_NOREPLAY
340 struct bsd_driver_data *drv = priv;
341 #endif /* IEEE80211_KEY_NOREPLAY */
342
343 wpa_printf(MSG_DEBUG, "%s: alg=%d addr=%p key_idx=%d set_tx=%d "
344 "seq_len=%zu key_len=%zu", __func__, alg, addr, key_idx,
345 set_tx, seq_len, key_len);
346
347 if (alg == WPA_ALG_NONE) {
348 #ifndef HOSTAPD
349 if (addr == NULL || is_broadcast_ether_addr(addr))
350 return bsd_del_key(priv, NULL, key_idx);
351 else
352 #endif /* HOSTAPD */
353 return bsd_del_key(priv, addr, key_idx);
354 }
355
356 os_memset(&wk, 0, sizeof(wk));
357 switch (alg) {
358 case WPA_ALG_WEP:
359 wk.ik_type = IEEE80211_CIPHER_WEP;
360 break;
361 case WPA_ALG_TKIP:
362 wk.ik_type = IEEE80211_CIPHER_TKIP;
363 break;
364 case WPA_ALG_CCMP:
365 wk.ik_type = IEEE80211_CIPHER_AES_CCM;
366 break;
367 default:
368 wpa_printf(MSG_ERROR, "%s: unknown alg=%d", __func__, alg);
369 return -1;
370 }
371
372 wk.ik_flags = IEEE80211_KEY_RECV;
373 if (set_tx)
374 wk.ik_flags |= IEEE80211_KEY_XMIT;
375
376 if (addr == NULL) {
377 os_memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
378 wk.ik_keyix = key_idx;
379 } else {
380 os_memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
381 /*
382 * Deduce whether group/global or unicast key by checking
383 * the address (yech). Note also that we can only mark global
384 * keys default; doing this for a unicast key is an error.
385 */
386 if (is_broadcast_ether_addr(addr)) {
387 wk.ik_flags |= IEEE80211_KEY_GROUP;
388 wk.ik_keyix = key_idx;
389 } else {
390 wk.ik_keyix = key_idx == 0 ? IEEE80211_KEYIX_NONE :
391 key_idx;
392 }
393 }
394 if (wk.ik_keyix != IEEE80211_KEYIX_NONE && set_tx)
395 wk.ik_flags |= IEEE80211_KEY_DEFAULT;
396 #ifndef HOSTAPD
397 #ifdef IEEE80211_KEY_NOREPLAY
398 /*
399 * Ignore replay failures in IBSS and AHDEMO mode.
400 */
401 if (drv->opmode == IEEE80211_M_IBSS ||
402 drv->opmode == IEEE80211_M_AHDEMO)
403 wk.ik_flags |= IEEE80211_KEY_NOREPLAY;
404 #endif /* IEEE80211_KEY_NOREPLAY */
405 #endif /* HOSTAPD */
406 wk.ik_keylen = key_len;
407 if (seq) {
408 #ifdef WORDS_BIGENDIAN
409 /*
410 * wk.ik_keyrsc is in host byte order (big endian), need to
411 * swap it to match with the byte order used in WPA.
412 */
413 int i;
414 u8 *keyrsc = (u8 *) &wk.ik_keyrsc;
415 for (i = 0; i < seq_len; i++)
416 keyrsc[WPA_KEY_RSC_LEN - i - 1] = seq[i];
417 #else /* WORDS_BIGENDIAN */
418 os_memcpy(&wk.ik_keyrsc, seq, seq_len);
419 #endif /* WORDS_BIGENDIAN */
420 }
421 os_memcpy(wk.ik_keydata, key, key_len);
422
423 return set80211var(priv, IEEE80211_IOC_WPAKEY, &wk, sizeof(wk));
424 }
425
426 static int
427 bsd_configure_wpa(void *priv, struct wpa_bss_params *params)
428 {
429 #ifndef IEEE80211_IOC_APPIE
430 static const char *ciphernames[] =
431 { "WEP", "TKIP", "AES-OCB", "AES-CCM", "CKIP", "NONE" };
432 int v;
433
434 switch (params->wpa_group) {
435 case WPA_CIPHER_CCMP:
436 v = IEEE80211_CIPHER_AES_CCM;
437 break;
438 case WPA_CIPHER_TKIP:
439 v = IEEE80211_CIPHER_TKIP;
440 break;
441 case WPA_CIPHER_WEP104:
442 v = IEEE80211_CIPHER_WEP;
443 break;
444 case WPA_CIPHER_WEP40:
445 v = IEEE80211_CIPHER_WEP;
446 break;
447 case WPA_CIPHER_NONE:
448 v = IEEE80211_CIPHER_NONE;
449 break;
450 default:
451 wpa_printf(MSG_INFO, "Unknown group key cipher %u",
452 params->wpa_group);
453 return -1;
454 }
455 wpa_printf(MSG_DEBUG, "%s: group key cipher=%s (%u)",
456 __func__, ciphernames[v], v);
457 if (set80211param(priv, IEEE80211_IOC_MCASTCIPHER, v)) {
458 wpa_printf(MSG_INFO,
459 "Unable to set group key cipher to %u (%s)",
460 v, ciphernames[v]);
461 return -1;
462 }
463 if (v == IEEE80211_CIPHER_WEP) {
464 /* key length is done only for specific ciphers */
465 v = (params->wpa_group == WPA_CIPHER_WEP104 ? 13 : 5);
466 if (set80211param(priv, IEEE80211_IOC_MCASTKEYLEN, v)) {
467 wpa_printf(MSG_INFO,
468 "Unable to set group key length to %u", v);
469 return -1;
470 }
471 }
472
473 v = 0;
474 if (params->wpa_pairwise & WPA_CIPHER_CCMP)
475 v |= 1<<IEEE80211_CIPHER_AES_CCM;
476 if (params->wpa_pairwise & WPA_CIPHER_TKIP)
477 v |= 1<<IEEE80211_CIPHER_TKIP;
478 if (params->wpa_pairwise & WPA_CIPHER_NONE)
479 v |= 1<<IEEE80211_CIPHER_NONE;
480 wpa_printf(MSG_DEBUG, "%s: pairwise key ciphers=0x%x", __func__, v);
481 if (set80211param(priv, IEEE80211_IOC_UCASTCIPHERS, v)) {
482 wpa_printf(MSG_INFO,
483 "Unable to set pairwise key ciphers to 0x%x", v);
484 return -1;
485 }
486
487 wpa_printf(MSG_DEBUG, "%s: key management algorithms=0x%x",
488 __func__, params->wpa_key_mgmt);
489 if (set80211param(priv, IEEE80211_IOC_KEYMGTALGS,
490 params->wpa_key_mgmt)) {
491 wpa_printf(MSG_INFO,
492 "Unable to set key management algorithms to 0x%x",
493 params->wpa_key_mgmt);
494 return -1;
495 }
496
497 v = 0;
498 if (params->rsn_preauth)
499 v |= BIT(0);
500 wpa_printf(MSG_DEBUG, "%s: rsn capabilities=0x%x",
501 __func__, params->rsn_preauth);
502 if (set80211param(priv, IEEE80211_IOC_RSNCAPS, v)) {
503 wpa_printf(MSG_INFO, "Unable to set RSN capabilities to 0x%x",
504 v);
505 return -1;
506 }
507 #endif /* IEEE80211_IOC_APPIE */
508
509 wpa_printf(MSG_DEBUG, "%s: enable WPA= 0x%x", __func__, params->wpa);
510 if (set80211param(priv, IEEE80211_IOC_WPA, params->wpa)) {
511 wpa_printf(MSG_INFO, "Unable to set WPA to %u", params->wpa);
512 return -1;
513 }
514 return 0;
515 }
516
517 static int
518 bsd_set_ieee8021x(void *priv, struct wpa_bss_params *params)
519 {
520 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, params->enabled);
521
522 if (!params->enabled) {
523 /* XXX restore state */
524 return set80211param(priv, IEEE80211_IOC_AUTHMODE,
525 IEEE80211_AUTH_AUTO);
526 }
527 if (!params->wpa && !params->ieee802_1x) {
528 wpa_printf(MSG_ERROR, "%s: No 802.1X or WPA enabled",
529 __func__);
530 return -1;
531 }
532 if (params->wpa && bsd_configure_wpa(priv, params) != 0) {
533 wpa_printf(MSG_ERROR, "%s: Failed to configure WPA state",
534 __func__);
535 return -1;
536 }
537 if (set80211param(priv, IEEE80211_IOC_AUTHMODE,
538 (params->wpa ? IEEE80211_AUTH_WPA : IEEE80211_AUTH_8021X))) {
539 wpa_printf(MSG_ERROR, "%s: Failed to enable WPA/802.1X",
540 __func__);
541 return -1;
542 }
543 return bsd_ctrl_iface(priv, 1);
544 }
545
546 static void
547 bsd_new_sta(void *priv, void *ctx, u8 addr[IEEE80211_ADDR_LEN])
548 {
549 struct ieee80211req_wpaie ie;
550 int ielen = 0;
551 u8 *iebuf = NULL;
552
553 /*
554 * Fetch and validate any negotiated WPA/RSN parameters.
555 */
556 memset(&ie, 0, sizeof(ie));
557 memcpy(ie.wpa_macaddr, addr, IEEE80211_ADDR_LEN);
558 if (get80211var(priv, IEEE80211_IOC_WPAIE, &ie, sizeof(ie)) < 0) {
559 wpa_printf(MSG_INFO,
560 "Failed to get WPA/RSN information element");
561 goto no_ie;
562 }
563 iebuf = ie.wpa_ie;
564 ielen = ie.wpa_ie[1];
565 if (ielen == 0)
566 iebuf = NULL;
567 else
568 ielen += 2;
569
570 no_ie:
571 drv_event_assoc(ctx, addr, iebuf, ielen, 0);
572 }
573
574 static int
575 bsd_send_eapol(void *priv, const u8 *addr, const u8 *data, size_t data_len,
576 int encrypt, const u8 *own_addr, u32 flags)
577 {
578 struct bsd_driver_data *drv = priv;
579
580 wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", data, data_len);
581
582 return l2_packet_send(drv->sock_xmit, addr, ETH_P_EAPOL, data,
583 data_len);
584 }
585
586 static int
587 bsd_set_freq(void *priv, struct hostapd_freq_params *freq)
588 {
589 struct bsd_driver_data *drv = priv;
590 #ifdef SIOCS80211CHANNEL
591 struct ieee80211chanreq creq;
592 #endif /* SIOCS80211CHANNEL */
593 u32 mode;
594 int channel = freq->channel;
595
596 if (channel < 14) {
597 mode =
598 #ifdef CONFIG_IEEE80211N
599 freq->ht_enabled ? IFM_IEEE80211_11NG :
600 #endif /* CONFIG_IEEE80211N */
601 IFM_IEEE80211_11G;
602 } else if (channel == 14) {
603 mode = IFM_IEEE80211_11B;
604 } else {
605 mode =
606 #ifdef CONFIG_IEEE80211N
607 freq->ht_enabled ? IFM_IEEE80211_11NA :
608 #endif /* CONFIG_IEEE80211N */
609 IFM_IEEE80211_11A;
610 }
611 if (bsd_set_mediaopt(drv, IFM_MMASK, mode) < 0) {
612 wpa_printf(MSG_ERROR, "%s: failed to set modulation mode",
613 __func__);
614 return -1;
615 }
616
617 #ifdef SIOCS80211CHANNEL
618 os_memset(&creq, 0, sizeof(creq));
619 os_strlcpy(creq.i_name, drv->ifname, sizeof(creq.i_name));
620 creq.i_channel = (u_int16_t)channel;
621 return ioctl(drv->global->sock, SIOCS80211CHANNEL, &creq);
622 #else /* SIOCS80211CHANNEL */
623 return set80211param(priv, IEEE80211_IOC_CHANNEL, channel);
624 #endif /* SIOCS80211CHANNEL */
625 }
626
627 static int
628 bsd_set_opt_ie(void *priv, const u8 *ie, size_t ie_len)
629 {
630 #ifdef IEEE80211_IOC_APPIE
631 wpa_printf(MSG_DEBUG, "%s: set WPA+RSN ie (len %lu)", __func__,
632 (unsigned long)ie_len);
633 return bsd_set80211(priv, IEEE80211_IOC_APPIE, IEEE80211_APPIE_WPA,
634 ie, ie_len);
635 #endif /* IEEE80211_IOC_APPIE */
636 return 0;
637 }
638
639 static size_t
640 rtbuf_len(void)
641 {
642 size_t len;
643
644 int mib[6] = {CTL_NET, AF_ROUTE, 0, AF_INET, NET_RT_DUMP, 0};
645
646 if (sysctl(mib, 6, NULL, &len, NULL, 0) < 0) {
647 wpa_printf(MSG_WARNING, "%s failed: %s", __func__,
648 strerror(errno));
649 len = 2048;
650 }
651
652 return len;
653 }
654
655 #ifdef HOSTAPD
656
657 /*
658 * Avoid conflicts with hostapd definitions by undefining couple of defines
659 * from net80211 header files.
660 */
661 #undef RSN_VERSION
662 #undef WPA_VERSION
663 #undef WPA_OUI_TYPE
664
665 static int bsd_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
666 int reason_code);
667
668 static const char *
669 ether_sprintf(const u8 *addr)
670 {
671 static char buf[sizeof(MACSTR)];
672
673 if (addr != NULL)
674 snprintf(buf, sizeof(buf), MACSTR, MAC2STR(addr));
675 else
676 snprintf(buf, sizeof(buf), MACSTR, 0,0,0,0,0,0);
677 return buf;
678 }
679
680 static int
681 bsd_set_privacy(void *priv, int enabled)
682 {
683 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
684
685 return set80211param(priv, IEEE80211_IOC_PRIVACY, enabled);
686 }
687
688 static int
689 bsd_get_seqnum(const char *ifname, void *priv, const u8 *addr, int idx,
690 u8 *seq)
691 {
692 struct ieee80211req_key wk;
693
694 wpa_printf(MSG_DEBUG, "%s: addr=%s idx=%d",
695 __func__, ether_sprintf(addr), idx);
696
697 memset(&wk, 0, sizeof(wk));
698 if (addr == NULL)
699 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
700 else
701 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
702 wk.ik_keyix = idx;
703
704 if (get80211var(priv, IEEE80211_IOC_WPAKEY, &wk, sizeof(wk)) < 0) {
705 wpa_printf(MSG_INFO, "Failed to get encryption");
706 return -1;
707 }
708
709 #ifdef WORDS_BIGENDIAN
710 {
711 /*
712 * wk.ik_keytsc is in host byte order (big endian), need to
713 * swap it to match with the byte order used in WPA.
714 */
715 int i;
716 u8 tmp[WPA_KEY_RSC_LEN];
717 memcpy(tmp, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
718 for (i = 0; i < WPA_KEY_RSC_LEN; i++) {
719 seq[i] = tmp[WPA_KEY_RSC_LEN - i - 1];
720 }
721 }
722 #else /* WORDS_BIGENDIAN */
723 memcpy(seq, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
724 #endif /* WORDS_BIGENDIAN */
725 return 0;
726 }
727
728
729 static int
730 bsd_flush(void *priv)
731 {
732 u8 allsta[IEEE80211_ADDR_LEN];
733
734 memset(allsta, 0xff, IEEE80211_ADDR_LEN);
735 return bsd_sta_deauth(priv, NULL, allsta, IEEE80211_REASON_AUTH_LEAVE);
736 }
737
738
739 static int
740 bsd_read_sta_driver_data(void *priv, struct hostap_sta_driver_data *data,
741 const u8 *addr)
742 {
743 struct ieee80211req_sta_stats stats;
744
745 memcpy(stats.is_u.macaddr, addr, IEEE80211_ADDR_LEN);
746 if (get80211var(priv, IEEE80211_IOC_STA_STATS, &stats, sizeof(stats))
747 > 0) {
748 /* XXX? do packets counts include non-data frames? */
749 data->rx_packets = stats.is_stats.ns_rx_data;
750 data->rx_bytes = stats.is_stats.ns_rx_bytes;
751 data->tx_packets = stats.is_stats.ns_tx_data;
752 data->tx_bytes = stats.is_stats.ns_tx_bytes;
753 }
754 return 0;
755 }
756
757 static int
758 bsd_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, int reason_code)
759 {
760 return bsd_send_mlme_param(priv, IEEE80211_MLME_DEAUTH, reason_code,
761 addr);
762 }
763
764 static int
765 bsd_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
766 int reason_code)
767 {
768 return bsd_send_mlme_param(priv, IEEE80211_MLME_DISASSOC, reason_code,
769 addr);
770 }
771
772 static void
773 bsd_wireless_event_receive(int sock, void *ctx, void *sock_ctx)
774 {
775 struct bsd_driver_global *global = sock_ctx;
776 struct bsd_driver_data *drv;
777 struct if_announcemsghdr *ifan;
778 struct rt_msghdr *rtm;
779 struct ieee80211_michael_event *mic;
780 struct ieee80211_join_event *join;
781 struct ieee80211_leave_event *leave;
782 int n;
783 union wpa_event_data data;
784
785 n = read(sock, global->event_buf, global->event_buf_len);
786 if (n < 0) {
787 if (errno != EINTR && errno != EAGAIN)
788 wpa_printf(MSG_ERROR, "%s read() failed: %s",
789 __func__, strerror(errno));
790 return;
791 }
792
793 rtm = (struct rt_msghdr *) global->event_buf;
794 if (rtm->rtm_version != RTM_VERSION) {
795 wpa_printf(MSG_DEBUG, "Invalid routing message version=%d",
796 rtm->rtm_version);
797 return;
798 }
799 switch (rtm->rtm_type) {
800 case RTM_IEEE80211:
801 ifan = (struct if_announcemsghdr *) rtm;
802 drv = bsd_get_drvindex(global, ifan->ifan_index);
803 if (drv == NULL)
804 return;
805 switch (ifan->ifan_what) {
806 case RTM_IEEE80211_ASSOC:
807 case RTM_IEEE80211_REASSOC:
808 case RTM_IEEE80211_DISASSOC:
809 case RTM_IEEE80211_SCAN:
810 break;
811 case RTM_IEEE80211_LEAVE:
812 leave = (struct ieee80211_leave_event *) &ifan[1];
813 drv_event_disassoc(drv->hapd, leave->iev_addr);
814 break;
815 case RTM_IEEE80211_JOIN:
816 #ifdef RTM_IEEE80211_REJOIN
817 case RTM_IEEE80211_REJOIN:
818 #endif
819 join = (struct ieee80211_join_event *) &ifan[1];
820 bsd_new_sta(drv, drv->hapd, join->iev_addr);
821 break;
822 case RTM_IEEE80211_REPLAY:
823 /* ignore */
824 break;
825 case RTM_IEEE80211_MICHAEL:
826 mic = (struct ieee80211_michael_event *) &ifan[1];
827 wpa_printf(MSG_DEBUG,
828 "Michael MIC failure wireless event: "
829 "keyix=%u src_addr=" MACSTR, mic->iev_keyix,
830 MAC2STR(mic->iev_src));
831 os_memset(&data, 0, sizeof(data));
832 data.michael_mic_failure.unicast = 1;
833 data.michael_mic_failure.src = mic->iev_src;
834 wpa_supplicant_event(drv->hapd,
835 EVENT_MICHAEL_MIC_FAILURE, &data);
836 break;
837 }
838 break;
839 }
840 }
841
842 static void
843 handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
844 {
845 struct bsd_driver_data *drv = ctx;
846 drv_event_eapol_rx(drv->hapd, src_addr, buf, len);
847 }
848
849 static void *
850 bsd_init(struct hostapd_data *hapd, struct wpa_init_params *params)
851 {
852 struct bsd_driver_data *drv;
853
854 drv = os_zalloc(sizeof(struct bsd_driver_data));
855 if (drv == NULL) {
856 wpa_printf(MSG_ERROR, "Could not allocate memory for bsd driver data");
857 return NULL;
858 }
859
860 drv->ifindex = if_nametoindex(params->ifname);
861 if (drv->ifindex == 0) {
862 wpa_printf(MSG_DEBUG, "%s: interface %s does not exist",
863 __func__, params->ifname);
864 goto bad;
865 }
866
867 drv->hapd = hapd;
868 drv->global = params->global_priv;
869 os_strlcpy(drv->ifname, params->ifname, sizeof(drv->ifname));
870
871 drv->sock_xmit = l2_packet_init(drv->ifname, NULL, ETH_P_EAPOL,
872 handle_read, drv, 0);
873 if (drv->sock_xmit == NULL)
874 goto bad;
875 if (l2_packet_get_own_addr(drv->sock_xmit, params->own_addr))
876 goto bad;
877
878 /* mark down during setup */
879 if (bsd_ctrl_iface(drv, 0) < 0)
880 goto bad;
881
882 if (bsd_set_mediaopt(drv, IFM_OMASK, IFM_IEEE80211_HOSTAP) < 0) {
883 wpa_printf(MSG_ERROR, "%s: failed to set operation mode",
884 __func__);
885 goto bad;
886 }
887
888 dl_list_add(&drv->global->ifaces, &drv->list);
889
890 return drv;
891 bad:
892 if (drv->sock_xmit != NULL)
893 l2_packet_deinit(drv->sock_xmit);
894 os_free(drv);
895 return NULL;
896 }
897
898
899 static void
900 bsd_deinit(void *priv)
901 {
902 struct bsd_driver_data *drv = priv;
903
904 if (drv->ifindex != 0)
905 bsd_ctrl_iface(drv, 0);
906 if (drv->sock_xmit != NULL)
907 l2_packet_deinit(drv->sock_xmit);
908 os_free(drv);
909 }
910
911
912 static int
913 bsd_commit(void *priv)
914 {
915 return bsd_ctrl_iface(priv, 1);
916 }
917
918
919 static int
920 bsd_set_sta_authorized(void *priv, const u8 *addr,
921 unsigned int total_flags, unsigned int flags_or,
922 unsigned int flags_and)
923 {
924 int authorized = -1;
925
926 /* For now, only support setting Authorized flag */
927 if (flags_or & WPA_STA_AUTHORIZED)
928 authorized = 1;
929 if (!(flags_and & WPA_STA_AUTHORIZED))
930 authorized = 0;
931
932 if (authorized < 0)
933 return 0;
934
935 return bsd_send_mlme_param(priv, authorized ?
936 IEEE80211_MLME_AUTHORIZE :
937 IEEE80211_MLME_UNAUTHORIZE, 0, addr);
938 }
939 #else /* HOSTAPD */
940
941 static int
942 get80211param(struct bsd_driver_data *drv, int op)
943 {
944 struct ieee80211req ireq;
945
946 if (bsd_get80211(drv, &ireq, op, NULL, 0) < 0)
947 return -1;
948 return ireq.i_val;
949 }
950
951 static int
952 wpa_driver_bsd_get_bssid(void *priv, u8 *bssid)
953 {
954 struct bsd_driver_data *drv = priv;
955 #ifdef SIOCG80211BSSID
956 struct ieee80211_bssid bs;
957
958 os_strlcpy(bs.i_name, drv->ifname, sizeof(bs.i_name));
959 if (ioctl(drv->global->sock, SIOCG80211BSSID, &bs) < 0)
960 return -1;
961 os_memcpy(bssid, bs.i_bssid, sizeof(bs.i_bssid));
962 return 0;
963 #else
964 return get80211var(drv, IEEE80211_IOC_BSSID,
965 bssid, IEEE80211_ADDR_LEN) < 0 ? -1 : 0;
966 #endif
967 }
968
969 static int
970 wpa_driver_bsd_get_ssid(void *priv, u8 *ssid)
971 {
972 struct bsd_driver_data *drv = priv;
973 return bsd_get_ssid(drv, ssid, 0);
974 }
975
976 static int
977 wpa_driver_bsd_set_wpa_ie(struct bsd_driver_data *drv, const u8 *wpa_ie,
978 size_t wpa_ie_len)
979 {
980 #ifdef IEEE80211_IOC_APPIE
981 return bsd_set_opt_ie(drv, wpa_ie, wpa_ie_len);
982 #else /* IEEE80211_IOC_APPIE */
983 return set80211var(drv, IEEE80211_IOC_OPTIE, wpa_ie, wpa_ie_len);
984 #endif /* IEEE80211_IOC_APPIE */
985 }
986
987 static int
988 wpa_driver_bsd_set_wpa_internal(void *priv, int wpa, int privacy)
989 {
990 int ret = 0;
991
992 wpa_printf(MSG_DEBUG, "%s: wpa=%d privacy=%d",
993 __func__, wpa, privacy);
994
995 if (!wpa && wpa_driver_bsd_set_wpa_ie(priv, NULL, 0) < 0)
996 ret = -1;
997 if (set80211param(priv, IEEE80211_IOC_PRIVACY, privacy) < 0)
998 ret = -1;
999 if (set80211param(priv, IEEE80211_IOC_WPA, wpa) < 0)
1000 ret = -1;
1001
1002 return ret;
1003 }
1004
1005 static int
1006 wpa_driver_bsd_set_wpa(void *priv, int enabled)
1007 {
1008 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
1009
1010 return wpa_driver_bsd_set_wpa_internal(priv, enabled ? 3 : 0, enabled);
1011 }
1012
1013 static int
1014 wpa_driver_bsd_set_countermeasures(void *priv, int enabled)
1015 {
1016 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
1017 return set80211param(priv, IEEE80211_IOC_COUNTERMEASURES, enabled);
1018 }
1019
1020
1021 static int
1022 wpa_driver_bsd_set_drop_unencrypted(void *priv, int enabled)
1023 {
1024 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
1025 return set80211param(priv, IEEE80211_IOC_DROPUNENCRYPTED, enabled);
1026 }
1027
1028 static int
1029 wpa_driver_bsd_deauthenticate(void *priv, const u8 *addr, int reason_code)
1030 {
1031 return bsd_send_mlme_param(priv, IEEE80211_MLME_DEAUTH, reason_code,
1032 addr);
1033 }
1034
1035 static int
1036 wpa_driver_bsd_set_auth_alg(void *priv, int auth_alg)
1037 {
1038 int authmode;
1039
1040 if ((auth_alg & WPA_AUTH_ALG_OPEN) &&
1041 (auth_alg & WPA_AUTH_ALG_SHARED))
1042 authmode = IEEE80211_AUTH_AUTO;
1043 else if (auth_alg & WPA_AUTH_ALG_SHARED)
1044 authmode = IEEE80211_AUTH_SHARED;
1045 else
1046 authmode = IEEE80211_AUTH_OPEN;
1047
1048 return set80211param(priv, IEEE80211_IOC_AUTHMODE, authmode);
1049 }
1050
1051 static void
1052 handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
1053 {
1054 struct bsd_driver_data *drv = ctx;
1055
1056 drv_event_eapol_rx(drv->ctx, src_addr, buf, len);
1057 }
1058
1059 static int
1060 wpa_driver_bsd_associate(void *priv, struct wpa_driver_associate_params *params)
1061 {
1062 struct bsd_driver_data *drv = priv;
1063 struct ieee80211req_mlme mlme;
1064 u32 mode;
1065 int privacy;
1066 int ret = 0;
1067
1068 wpa_printf(MSG_DEBUG,
1069 "%s: ssid '%.*s' wpa ie len %u pairwise %u group %u key mgmt %u"
1070 , __func__
1071 , (unsigned int) params->ssid_len, params->ssid
1072 , (unsigned int) params->wpa_ie_len
1073 , params->pairwise_suite
1074 , params->group_suite
1075 , params->key_mgmt_suite
1076 );
1077
1078 switch (params->mode) {
1079 case IEEE80211_MODE_INFRA:
1080 mode = 0 /* STA */;
1081 break;
1082 case IEEE80211_MODE_IBSS:
1083 mode = IFM_IEEE80211_IBSS;
1084 break;
1085 case IEEE80211_MODE_AP:
1086 mode = IFM_IEEE80211_HOSTAP;
1087 break;
1088 default:
1089 wpa_printf(MSG_ERROR, "%s: unknown operation mode", __func__);
1090 return -1;
1091 }
1092 if (bsd_set_mediaopt(drv, IFM_OMASK, mode) < 0) {
1093 wpa_printf(MSG_ERROR, "%s: failed to set operation mode",
1094 __func__);
1095 return -1;
1096 }
1097
1098 if (params->mode == IEEE80211_MODE_AP) {
1099 drv->sock_xmit = l2_packet_init(drv->ifname, NULL, ETH_P_EAPOL,
1100 handle_read, drv, 0);
1101 if (drv->sock_xmit == NULL)
1102 return -1;
1103 drv->is_ap = 1;
1104 return 0;
1105 }
1106
1107 if (wpa_driver_bsd_set_drop_unencrypted(drv, params->drop_unencrypted)
1108 < 0)
1109 ret = -1;
1110 if (wpa_driver_bsd_set_auth_alg(drv, params->auth_alg) < 0)
1111 ret = -1;
1112 /* XXX error handling is wrong but unclear what to do... */
1113 if (wpa_driver_bsd_set_wpa_ie(drv, params->wpa_ie, params->wpa_ie_len) < 0)
1114 return -1;
1115
1116 privacy = !(params->pairwise_suite == WPA_CIPHER_NONE &&
1117 params->group_suite == WPA_CIPHER_NONE &&
1118 params->key_mgmt_suite == WPA_KEY_MGMT_NONE &&
1119 params->wpa_ie_len == 0);
1120 wpa_printf(MSG_DEBUG, "%s: set PRIVACY %u", __func__, privacy);
1121
1122 if (set80211param(drv, IEEE80211_IOC_PRIVACY, privacy) < 0)
1123 return -1;
1124
1125 if (params->wpa_ie_len &&
1126 set80211param(drv, IEEE80211_IOC_WPA,
1127 params->wpa_ie[0] == WLAN_EID_RSN ? 2 : 1) < 0)
1128 return -1;
1129
1130 os_memset(&mlme, 0, sizeof(mlme));
1131 mlme.im_op = IEEE80211_MLME_ASSOC;
1132 if (params->ssid != NULL)
1133 os_memcpy(mlme.im_ssid, params->ssid, params->ssid_len);
1134 mlme.im_ssid_len = params->ssid_len;
1135 if (params->bssid != NULL)
1136 os_memcpy(mlme.im_macaddr, params->bssid, IEEE80211_ADDR_LEN);
1137 if (set80211var(drv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme)) < 0)
1138 return -1;
1139 return ret;
1140 }
1141
1142 static int
1143 wpa_driver_bsd_scan(void *priv, struct wpa_driver_scan_params *params)
1144 {
1145 struct bsd_driver_data *drv = priv;
1146 #ifdef IEEE80211_IOC_SCAN_MAX_SSID
1147 struct ieee80211_scan_req sr;
1148 int i;
1149 #endif /* IEEE80211_IOC_SCAN_MAX_SSID */
1150
1151 if (bsd_set_mediaopt(drv, IFM_OMASK, 0 /* STA */) < 0) {
1152 wpa_printf(MSG_ERROR, "%s: failed to set operation mode",
1153 __func__);
1154 return -1;
1155 }
1156
1157 if (set80211param(drv, IEEE80211_IOC_ROAMING,
1158 IEEE80211_ROAMING_MANUAL) < 0) {
1159 wpa_printf(MSG_ERROR, "%s: failed to set "
1160 "wpa_supplicant-based roaming: %s", __func__,
1161 strerror(errno));
1162 return -1;
1163 }
1164
1165 if (wpa_driver_bsd_set_wpa(drv, 1) < 0) {
1166 wpa_printf(MSG_ERROR, "%s: failed to set wpa: %s", __func__,
1167 strerror(errno));
1168 return -1;
1169 }
1170
1171 /* NB: interface must be marked UP to do a scan */
1172 if (bsd_ctrl_iface(drv, 1) < 0)
1173 return -1;
1174
1175 #ifdef IEEE80211_IOC_SCAN_MAX_SSID
1176 os_memset(&sr, 0, sizeof(sr));
1177 sr.sr_flags = IEEE80211_IOC_SCAN_ACTIVE | IEEE80211_IOC_SCAN_ONCE |
1178 IEEE80211_IOC_SCAN_NOJOIN;
1179 sr.sr_duration = IEEE80211_IOC_SCAN_FOREVER;
1180 if (params->num_ssids > 0) {
1181 sr.sr_nssid = params->num_ssids;
1182 #if 0
1183 /* Boundary check is done by upper layer */
1184 if (sr.sr_nssid > IEEE80211_IOC_SCAN_MAX_SSID)
1185 sr.sr_nssid = IEEE80211_IOC_SCAN_MAX_SSID;
1186 #endif
1187
1188 /* NB: check scan cache first */
1189 sr.sr_flags |= IEEE80211_IOC_SCAN_CHECK;
1190 }
1191 for (i = 0; i < sr.sr_nssid; i++) {
1192 sr.sr_ssid[i].len = params->ssids[i].ssid_len;
1193 os_memcpy(sr.sr_ssid[i].ssid, params->ssids[i].ssid,
1194 sr.sr_ssid[i].len);
1195 }
1196
1197 /* NB: net80211 delivers a scan complete event so no need to poll */
1198 return set80211var(drv, IEEE80211_IOC_SCAN_REQ, &sr, sizeof(sr));
1199 #else /* IEEE80211_IOC_SCAN_MAX_SSID */
1200 /* set desired ssid before scan */
1201 if (bsd_set_ssid(drv, params->ssids[0].ssid,
1202 params->ssids[0].ssid_len) < 0)
1203 return -1;
1204
1205 /* NB: net80211 delivers a scan complete event so no need to poll */
1206 return set80211param(drv, IEEE80211_IOC_SCAN_REQ, 0);
1207 #endif /* IEEE80211_IOC_SCAN_MAX_SSID */
1208 }
1209
1210 static void
1211 wpa_driver_bsd_event_receive(int sock, void *ctx, void *sock_ctx)
1212 {
1213 struct bsd_driver_global *global = sock_ctx;
1214 struct bsd_driver_data *drv;
1215 struct if_announcemsghdr *ifan;
1216 struct if_msghdr *ifm;
1217 struct rt_msghdr *rtm;
1218 union wpa_event_data event;
1219 struct ieee80211_michael_event *mic;
1220 struct ieee80211_leave_event *leave;
1221 struct ieee80211_join_event *join;
1222 int n;
1223
1224 n = read(sock, global->event_buf, global->event_buf_len);
1225 if (n < 0) {
1226 if (errno != EINTR && errno != EAGAIN)
1227 wpa_printf(MSG_ERROR, "%s read() failed: %s",
1228 __func__, strerror(errno));
1229 return;
1230 }
1231
1232 rtm = (struct rt_msghdr *) global->event_buf;
1233 if (rtm->rtm_version != RTM_VERSION) {
1234 wpa_printf(MSG_DEBUG, "Invalid routing message version=%d",
1235 rtm->rtm_version);
1236 return;
1237 }
1238 os_memset(&event, 0, sizeof(event));
1239 switch (rtm->rtm_type) {
1240 case RTM_IFANNOUNCE:
1241 ifan = (struct if_announcemsghdr *) rtm;
1242 switch (ifan->ifan_what) {
1243 case IFAN_DEPARTURE:
1244 drv = bsd_get_drvindex(global, ifan->ifan_index);
1245 if (drv)
1246 drv->if_removed = 1;
1247 event.interface_status.ievent = EVENT_INTERFACE_REMOVED;
1248 break;
1249 case IFAN_ARRIVAL:
1250 drv = bsd_get_drvname(global, ifan->ifan_name);
1251 if (drv) {
1252 drv->ifindex = ifan->ifan_index;
1253 drv->if_removed = 0;
1254 }
1255 event.interface_status.ievent = EVENT_INTERFACE_ADDED;
1256 break;
1257 default:
1258 wpa_printf(MSG_DEBUG, "RTM_IFANNOUNCE: unknown action");
1259 return;
1260 }
1261 wpa_printf(MSG_DEBUG, "RTM_IFANNOUNCE: Interface '%s' %s",
1262 ifan->ifan_name,
1263 ifan->ifan_what == IFAN_DEPARTURE ?
1264 "removed" : "added");
1265 os_strlcpy(event.interface_status.ifname, ifan->ifan_name,
1266 sizeof(event.interface_status.ifname));
1267 if (drv) {
1268 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS,
1269 &event);
1270 /*
1271 * Set ifindex to zero after sending the event as the
1272 * event might query the driver to ensure a match.
1273 */
1274 if (ifan->ifan_what == IFAN_DEPARTURE)
1275 drv->ifindex = 0;
1276 } else {
1277 wpa_supplicant_event_global(global->ctx,
1278 EVENT_INTERFACE_STATUS,
1279 &event);
1280 }
1281 break;
1282 case RTM_IEEE80211:
1283 ifan = (struct if_announcemsghdr *) rtm;
1284 drv = bsd_get_drvindex(global, ifan->ifan_index);
1285 if (drv == NULL)
1286 return;
1287 switch (ifan->ifan_what) {
1288 case RTM_IEEE80211_ASSOC:
1289 case RTM_IEEE80211_REASSOC:
1290 if (drv->is_ap)
1291 break;
1292 wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL);
1293 break;
1294 case RTM_IEEE80211_DISASSOC:
1295 if (drv->is_ap)
1296 break;
1297 wpa_supplicant_event(drv->ctx, EVENT_DISASSOC, NULL);
1298 break;
1299 case RTM_IEEE80211_SCAN:
1300 if (drv->is_ap)
1301 break;
1302 wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS,
1303 NULL);
1304 break;
1305 case RTM_IEEE80211_LEAVE:
1306 leave = (struct ieee80211_leave_event *) &ifan[1];
1307 drv_event_disassoc(drv->ctx, leave->iev_addr);
1308 break;
1309 case RTM_IEEE80211_JOIN:
1310 #ifdef RTM_IEEE80211_REJOIN
1311 case RTM_IEEE80211_REJOIN:
1312 #endif
1313 join = (struct ieee80211_join_event *) &ifan[1];
1314 bsd_new_sta(drv, drv->ctx, join->iev_addr);
1315 break;
1316 case RTM_IEEE80211_REPLAY:
1317 /* ignore */
1318 break;
1319 case RTM_IEEE80211_MICHAEL:
1320 mic = (struct ieee80211_michael_event *) &ifan[1];
1321 wpa_printf(MSG_DEBUG,
1322 "Michael MIC failure wireless event: "
1323 "keyix=%u src_addr=" MACSTR, mic->iev_keyix,
1324 MAC2STR(mic->iev_src));
1325
1326 os_memset(&event, 0, sizeof(event));
1327 event.michael_mic_failure.unicast =
1328 !IEEE80211_IS_MULTICAST(mic->iev_dst);
1329 wpa_supplicant_event(drv->ctx,
1330 EVENT_MICHAEL_MIC_FAILURE, &event);
1331 break;
1332 }
1333 break;
1334 case RTM_IFINFO:
1335 ifm = (struct if_msghdr *) rtm;
1336 drv = bsd_get_drvindex(global, ifm->ifm_index);
1337 if (drv == NULL)
1338 return;
1339 if ((ifm->ifm_flags & IFF_UP) == 0 &&
1340 (drv->flags & IFF_UP) != 0) {
1341 wpa_printf(MSG_DEBUG, "RTM_IFINFO: Interface '%s' DOWN",
1342 drv->ifname);
1343 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_DISABLED,
1344 NULL);
1345 } else if ((ifm->ifm_flags & IFF_UP) != 0 &&
1346 (drv->flags & IFF_UP) == 0) {
1347 wpa_printf(MSG_DEBUG, "RTM_IFINFO: Interface '%s' UP",
1348 drv->ifname);
1349 wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED,
1350 NULL);
1351 }
1352 drv->flags = ifm->ifm_flags;
1353 break;
1354 }
1355 }
1356
1357 static void
1358 wpa_driver_bsd_add_scan_entry(struct wpa_scan_results *res,
1359 struct ieee80211req_scan_result *sr)
1360 {
1361 struct wpa_scan_res *result, **tmp;
1362 size_t extra_len;
1363 u8 *pos;
1364
1365 extra_len = 2 + sr->isr_ssid_len;
1366 extra_len += 2 + sr->isr_nrates;
1367 extra_len += 3; /* ERP IE */
1368 extra_len += sr->isr_ie_len;
1369
1370 result = os_zalloc(sizeof(*result) + extra_len);
1371 if (result == NULL)
1372 return;
1373 os_memcpy(result->bssid, sr->isr_bssid, ETH_ALEN);
1374 result->freq = sr->isr_freq;
1375 result->beacon_int = sr->isr_intval;
1376 result->caps = sr->isr_capinfo;
1377 result->qual = sr->isr_rssi;
1378 result->noise = sr->isr_noise;
1379
1380 #ifdef __FreeBSD__
1381 /*
1382 * the rssi value reported by the kernel is in 0.5dB steps relative to
1383 * the reported noise floor. see ieee80211_node.h for details.
1384 */
1385 result->level = sr->isr_rssi / 2 + sr->isr_noise;
1386 #else
1387 result->level = sr->isr_rssi;
1388 #endif
1389
1390 pos = (u8 *)(result + 1);
1391
1392 *pos++ = WLAN_EID_SSID;
1393 *pos++ = sr->isr_ssid_len;
1394 os_memcpy(pos, sr + 1, sr->isr_ssid_len);
1395 pos += sr->isr_ssid_len;
1396
1397 /*
1398 * Deal all rates as supported rate.
1399 * Because net80211 doesn't report extended supported rate or not.
1400 */
1401 *pos++ = WLAN_EID_SUPP_RATES;
1402 *pos++ = sr->isr_nrates;
1403 os_memcpy(pos, sr->isr_rates, sr->isr_nrates);
1404 pos += sr->isr_nrates;
1405
1406 *pos++ = WLAN_EID_ERP_INFO;
1407 *pos++ = 1;
1408 *pos++ = sr->isr_erp;
1409
1410 #if defined(__DragonFly__) || defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
1411 os_memcpy(pos, (u8 *)(sr + 1) + sr->isr_ssid_len + sr->isr_meshid_len,
1412 sr->isr_ie_len);
1413 #else
1414 os_memcpy(pos, (u8 *)(sr + 1) + sr->isr_ssid_len, sr->isr_ie_len);
1415 #endif
1416 pos += sr->isr_ie_len;
1417
1418 result->ie_len = pos - (u8 *)(result + 1);
1419
1420 tmp = os_realloc_array(res->res, res->num + 1,
1421 sizeof(struct wpa_scan_res *));
1422 if (tmp == NULL) {
1423 os_free(result);
1424 return;
1425 }
1426 tmp[res->num++] = result;
1427 res->res = tmp;
1428 }
1429
1430 struct wpa_scan_results *
1431 wpa_driver_bsd_get_scan_results2(void *priv)
1432 {
1433 struct ieee80211req_scan_result *sr;
1434 struct wpa_scan_results *res;
1435 int len, rest;
1436 uint8_t buf[24*1024], *pos;
1437
1438 len = get80211var(priv, IEEE80211_IOC_SCAN_RESULTS, buf, 24*1024);
1439 if (len < 0)
1440 return NULL;
1441
1442 res = os_zalloc(sizeof(*res));
1443 if (res == NULL)
1444 return NULL;
1445
1446 pos = buf;
1447 rest = len;
1448 while (rest >= sizeof(struct ieee80211req_scan_result)) {
1449 sr = (struct ieee80211req_scan_result *)pos;
1450 wpa_driver_bsd_add_scan_entry(res, sr);
1451 pos += sr->isr_len;
1452 rest -= sr->isr_len;
1453 }
1454
1455 wpa_printf(MSG_DEBUG, "Received %d bytes of scan results (%lu BSSes)",
1456 len, (unsigned long)res->num);
1457
1458 return res;
1459 }
1460
1461 static int wpa_driver_bsd_capa(struct bsd_driver_data *drv)
1462 {
1463 #ifdef IEEE80211_IOC_DEVCAPS
1464 /* kernel definitions copied from net80211/ieee80211_var.h */
1465 #define IEEE80211_CIPHER_WEP 0
1466 #define IEEE80211_CIPHER_TKIP 1
1467 #define IEEE80211_CIPHER_AES_CCM 3
1468 #define IEEE80211_CRYPTO_WEP (1<<IEEE80211_CIPHER_WEP)
1469 #define IEEE80211_CRYPTO_TKIP (1<<IEEE80211_CIPHER_TKIP)
1470 #define IEEE80211_CRYPTO_AES_CCM (1<<IEEE80211_CIPHER_AES_CCM)
1471 #define IEEE80211_C_HOSTAP 0x00000400 /* CAPABILITY: HOSTAP avail */
1472 #define IEEE80211_C_WPA1 0x00800000 /* CAPABILITY: WPA1 avail */
1473 #define IEEE80211_C_WPA2 0x01000000 /* CAPABILITY: WPA2 avail */
1474 struct ieee80211_devcaps_req devcaps;
1475
1476 if (get80211var(drv, IEEE80211_IOC_DEVCAPS, &devcaps,
1477 sizeof(devcaps)) < 0) {
1478 wpa_printf(MSG_ERROR, "failed to IEEE80211_IOC_DEVCAPS: %s",
1479 strerror(errno));
1480 return -1;
1481 }
1482
1483 wpa_printf(MSG_DEBUG, "%s: drivercaps=0x%08x,cryptocaps=0x%08x",
1484 __func__, devcaps.dc_drivercaps, devcaps.dc_cryptocaps);
1485
1486 if (devcaps.dc_drivercaps & IEEE80211_C_WPA1)
1487 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
1488 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK;
1489 if (devcaps.dc_drivercaps & IEEE80211_C_WPA2)
1490 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
1491 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
1492
1493 if (devcaps.dc_cryptocaps & IEEE80211_CRYPTO_WEP)
1494 drv->capa.enc |= WPA_DRIVER_CAPA_ENC_WEP40 |
1495 WPA_DRIVER_CAPA_ENC_WEP104;
1496 if (devcaps.dc_cryptocaps & IEEE80211_CRYPTO_TKIP)
1497 drv->capa.enc |= WPA_DRIVER_CAPA_ENC_TKIP;
1498 if (devcaps.dc_cryptocaps & IEEE80211_CRYPTO_AES_CCM)
1499 drv->capa.enc |= WPA_DRIVER_CAPA_ENC_CCMP;
1500
1501 if (devcaps.dc_drivercaps & IEEE80211_C_HOSTAP)
1502 drv->capa.flags |= WPA_DRIVER_FLAGS_AP;
1503 #undef IEEE80211_CIPHER_WEP
1504 #undef IEEE80211_CIPHER_TKIP
1505 #undef IEEE80211_CIPHER_AES_CCM
1506 #undef IEEE80211_CRYPTO_WEP
1507 #undef IEEE80211_CRYPTO_TKIP
1508 #undef IEEE80211_CRYPTO_AES_CCM
1509 #undef IEEE80211_C_HOSTAP
1510 #undef IEEE80211_C_WPA1
1511 #undef IEEE80211_C_WPA2
1512 #else /* IEEE80211_IOC_DEVCAPS */
1513 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */
1514 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
1515 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
1516 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
1517 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
1518 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 |
1519 WPA_DRIVER_CAPA_ENC_WEP104 |
1520 WPA_DRIVER_CAPA_ENC_TKIP |
1521 WPA_DRIVER_CAPA_ENC_CCMP;
1522 drv->capa.flags |= WPA_DRIVER_FLAGS_AP;
1523 #endif /* IEEE80211_IOC_DEVCAPS */
1524 #ifdef IEEE80211_IOC_SCAN_MAX_SSID
1525 drv->capa.max_scan_ssids = IEEE80211_IOC_SCAN_MAX_SSID;
1526 #else /* IEEE80211_IOC_SCAN_MAX_SSID */
1527 drv->capa.max_scan_ssids = 1;
1528 #endif /* IEEE80211_IOC_SCAN_MAX_SSID */
1529 drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
1530 WPA_DRIVER_AUTH_SHARED |
1531 WPA_DRIVER_AUTH_LEAP;
1532 return 0;
1533 }
1534
1535 static enum ieee80211_opmode
1536 get80211opmode(struct bsd_driver_data *drv)
1537 {
1538 struct ifmediareq ifmr;
1539
1540 (void) memset(&ifmr, 0, sizeof(ifmr));
1541 (void) os_strlcpy(ifmr.ifm_name, drv->ifname, sizeof(ifmr.ifm_name));
1542
1543 if (ioctl(drv->global->sock, SIOCGIFMEDIA, (caddr_t)&ifmr) >= 0) {
1544 if (ifmr.ifm_current & IFM_IEEE80211_ADHOC) {
1545 if (ifmr.ifm_current & IFM_FLAG0)
1546 return IEEE80211_M_AHDEMO;
1547 else
1548 return IEEE80211_M_IBSS;
1549 }
1550 if (ifmr.ifm_current & IFM_IEEE80211_HOSTAP)
1551 return IEEE80211_M_HOSTAP;
1552 if (ifmr.ifm_current & IFM_IEEE80211_MONITOR)
1553 return IEEE80211_M_MONITOR;
1554 #ifdef IEEE80211_M_MBSS
1555 if (ifmr.ifm_current & IFM_IEEE80211_MBSS)
1556 return IEEE80211_M_MBSS;
1557 #endif /* IEEE80211_M_MBSS */
1558 }
1559 return IEEE80211_M_STA;
1560 }
1561
1562 static void *
1563 wpa_driver_bsd_init(void *ctx, const char *ifname, void *priv)
1564 {
1565 #define GETPARAM(drv, param, v) \
1566 (((v) = get80211param(drv, param)) != -1)
1567 struct bsd_driver_data *drv;
1568
1569 drv = os_zalloc(sizeof(*drv));
1570 if (drv == NULL)
1571 return NULL;
1572
1573 /*
1574 * NB: We require the interface name be mappable to an index.
1575 * This implies we do not support having wpa_supplicant
1576 * wait for an interface to appear. This seems ok; that
1577 * doesn't belong here; it's really the job of devd.
1578 */
1579 drv->ifindex = if_nametoindex(ifname);
1580 if (drv->ifindex == 0) {
1581 wpa_printf(MSG_DEBUG, "%s: interface %s does not exist",
1582 __func__, ifname);
1583 goto fail;
1584 }
1585
1586 drv->ctx = ctx;
1587 drv->global = priv;
1588 os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
1589
1590 if (!GETPARAM(drv, IEEE80211_IOC_ROAMING, drv->prev_roaming)) {
1591 wpa_printf(MSG_DEBUG, "%s: failed to get roaming state: %s",
1592 __func__, strerror(errno));
1593 goto fail;
1594 }
1595 if (!GETPARAM(drv, IEEE80211_IOC_PRIVACY, drv->prev_privacy)) {
1596 wpa_printf(MSG_DEBUG, "%s: failed to get privacy state: %s",
1597 __func__, strerror(errno));
1598 goto fail;
1599 }
1600 if (!GETPARAM(drv, IEEE80211_IOC_WPA, drv->prev_wpa)) {
1601 wpa_printf(MSG_DEBUG, "%s: failed to get wpa state: %s",
1602 __func__, strerror(errno));
1603 goto fail;
1604 }
1605
1606 if (wpa_driver_bsd_capa(drv))
1607 goto fail;
1608
1609 /* Down interface during setup. */
1610 if (bsd_ctrl_iface(drv, 0) < 0)
1611 goto fail;
1612
1613 drv->opmode = get80211opmode(drv);
1614 dl_list_add(&drv->global->ifaces, &drv->list);
1615
1616 return drv;
1617 fail:
1618 os_free(drv);
1619 return NULL;
1620 #undef GETPARAM
1621 }
1622
1623 static void
1624 wpa_driver_bsd_deinit(void *priv)
1625 {
1626 struct bsd_driver_data *drv = priv;
1627
1628 if (drv->ifindex != 0 && !drv->if_removed) {
1629 wpa_driver_bsd_set_wpa(drv, 0);
1630
1631 /* NB: mark interface down */
1632 bsd_ctrl_iface(drv, 0);
1633
1634 wpa_driver_bsd_set_wpa_internal(drv, drv->prev_wpa,
1635 drv->prev_privacy);
1636
1637 if (set80211param(drv, IEEE80211_IOC_ROAMING, drv->prev_roaming)
1638 < 0)
1639 wpa_printf(MSG_DEBUG,
1640 "%s: failed to restore roaming state",
1641 __func__);
1642 }
1643
1644 if (drv->sock_xmit != NULL)
1645 l2_packet_deinit(drv->sock_xmit);
1646 dl_list_del(&drv->list);
1647 os_free(drv);
1648 }
1649
1650 static int
1651 wpa_driver_bsd_get_capa(void *priv, struct wpa_driver_capa *capa)
1652 {
1653 struct bsd_driver_data *drv = priv;
1654
1655 os_memcpy(capa, &drv->capa, sizeof(*capa));
1656 return 0;
1657 }
1658 #endif /* HOSTAPD */
1659
1660 static void *
1661 bsd_global_init(void *ctx)
1662 {
1663 struct bsd_driver_global *global;
1664
1665 global = os_zalloc(sizeof(*global));
1666 if (global == NULL)
1667 return NULL;
1668
1669 global->ctx = ctx;
1670 dl_list_init(&global->ifaces);
1671
1672 global->sock = socket(PF_INET, SOCK_DGRAM, 0);
1673 if (global->sock < 0) {
1674 wpa_printf(MSG_ERROR, "socket[PF_INET,SOCK_DGRAM]: %s",
1675 strerror(errno));
1676 goto fail1;
1677 }
1678
1679 global->route = socket(PF_ROUTE, SOCK_RAW, 0);
1680 if (global->route < 0) {
1681 wpa_printf(MSG_ERROR, "socket[PF_ROUTE,SOCK_RAW]: %s",
1682 strerror(errno));
1683 goto fail;
1684 }
1685
1686 global->event_buf_len = rtbuf_len();
1687 global->event_buf = os_malloc(global->event_buf_len);
1688 if (global->event_buf == NULL) {
1689 wpa_printf(MSG_ERROR, "%s: os_malloc() failed", __func__);
1690 goto fail;
1691 }
1692
1693 #ifdef HOSTAPD
1694 eloop_register_read_sock(global->route, bsd_wireless_event_receive,
1695 NULL, global);
1696
1697 #else /* HOSTAPD */
1698 eloop_register_read_sock(global->route, wpa_driver_bsd_event_receive,
1699 NULL, global);
1700 #endif /* HOSTAPD */
1701
1702 return global;
1703
1704 fail:
1705 close(global->sock);
1706 fail1:
1707 os_free(global);
1708 return NULL;
1709 }
1710
1711 static void
1712 bsd_global_deinit(void *priv)
1713 {
1714 struct bsd_driver_global *global = priv;
1715
1716 eloop_unregister_read_sock(global->route);
1717 (void) close(global->route);
1718 (void) close(global->sock);
1719 os_free(global);
1720 }
1721
1722
1723 const struct wpa_driver_ops wpa_driver_bsd_ops = {
1724 .name = "bsd",
1725 .desc = "BSD 802.11 support",
1726 .global_init = bsd_global_init,
1727 .global_deinit = bsd_global_deinit,
1728 #ifdef HOSTAPD
1729 .hapd_init = bsd_init,
1730 .hapd_deinit = bsd_deinit,
1731 .set_privacy = bsd_set_privacy,
1732 .get_seqnum = bsd_get_seqnum,
1733 .flush = bsd_flush,
1734 .read_sta_data = bsd_read_sta_driver_data,
1735 .sta_disassoc = bsd_sta_disassoc,
1736 .sta_deauth = bsd_sta_deauth,
1737 .sta_set_flags = bsd_set_sta_authorized,
1738 .commit = bsd_commit,
1739 #else /* HOSTAPD */
1740 .init2 = wpa_driver_bsd_init,
1741 .deinit = wpa_driver_bsd_deinit,
1742 .get_bssid = wpa_driver_bsd_get_bssid,
1743 .get_ssid = wpa_driver_bsd_get_ssid,
1744 .set_countermeasures = wpa_driver_bsd_set_countermeasures,
1745 .scan2 = wpa_driver_bsd_scan,
1746 .get_scan_results2 = wpa_driver_bsd_get_scan_results2,
1747 .deauthenticate = wpa_driver_bsd_deauthenticate,
1748 .associate = wpa_driver_bsd_associate,
1749 .get_capa = wpa_driver_bsd_get_capa,
1750 #endif /* HOSTAPD */
1751 .set_freq = bsd_set_freq,
1752 .set_key = bsd_set_key,
1753 .set_ieee8021x = bsd_set_ieee8021x,
1754 .hapd_set_ssid = bsd_set_ssid,
1755 .hapd_get_ssid = bsd_get_ssid,
1756 .hapd_send_eapol = bsd_send_eapol,
1757 .set_generic_elem = bsd_set_opt_ie,
1758 };
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