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bsd: Use device capability information
[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 program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 *
10 * Alternatively, this software may be distributed under the terms of BSD
11 * license.
12 *
13 * See README and COPYING for more details.
14 */
15
16 #include "includes.h"
17 #include <sys/ioctl.h>
18
19 #include "common.h"
20 #include "driver.h"
21 #include "eloop.h"
22 #include "common/ieee802_11_defs.h"
23
24 #include <net/if.h>
25 #include <net/if_media.h>
26
27 #ifdef __NetBSD__
28 #include <net/if_ether.h>
29 #else
30 #include <net/ethernet.h>
31 #endif
32 #include <net/route.h>
33
34 #ifdef __DragonFly__
35 #include <netproto/802_11/ieee80211_ioctl.h>
36 #include <netproto/802_11/ieee80211_dragonfly.h>
37 #else /* __DragonFly__ */
38 #include <net80211/ieee80211.h>
39 #include <net80211/ieee80211_ioctl.h>
40 #include <net80211/ieee80211_crypto.h>
41 #endif /* __DragonFly__ */
42 #if __FreeBSD__
43 #include <net80211/ieee80211_freebsd.h>
44 #endif
45 #if __NetBSD__
46 #include <net80211/ieee80211_netbsd.h>
47 #endif
48
49 #include "l2_packet/l2_packet.h"
50
51 struct bsd_driver_data {
52 struct hostapd_data *hapd; /* back pointer */
53
54 int sock; /* open socket for 802.11 ioctls */
55 struct l2_packet_data *sock_xmit;/* raw packet xmit socket */
56 int route; /* routing socket for events */
57 char ifname[IFNAMSIZ+1]; /* interface name */
58 unsigned int ifindex; /* interface index */
59 void *ctx;
60 struct wpa_driver_capa capa; /* driver capability */
61 int is_ap; /* Access point mode */
62 int prev_roaming; /* roaming state to restore on deinit */
63 int prev_privacy; /* privacy state to restore on deinit */
64 int prev_wpa; /* wpa state to restore on deinit */
65 };
66
67 /* Generic functions for hostapd and wpa_supplicant */
68
69 static int
70 bsd_set80211(void *priv, int op, int val, const void *arg, int arg_len)
71 {
72 struct bsd_driver_data *drv = priv;
73 struct ieee80211req ireq;
74
75 os_memset(&ireq, 0, sizeof(ireq));
76 os_strlcpy(ireq.i_name, drv->ifname, sizeof(ireq.i_name));
77 ireq.i_type = op;
78 ireq.i_val = val;
79 ireq.i_data = (void *) arg;
80 ireq.i_len = arg_len;
81
82 if (ioctl(drv->sock, SIOCS80211, &ireq) < 0) {
83 wpa_printf(MSG_ERROR, "ioctl[SIOCS80211, op=%u, val=%u, "
84 "arg_len=%u]: %s", op, val, arg_len,
85 strerror(errno));
86 return -1;
87 }
88 return 0;
89 }
90
91 static int
92 bsd_get80211(void *priv, struct ieee80211req *ireq, int op, void *arg,
93 int arg_len)
94 {
95 struct bsd_driver_data *drv = priv;
96
97 os_memset(ireq, 0, sizeof(*ireq));
98 os_strlcpy(ireq->i_name, drv->ifname, sizeof(ireq->i_name));
99 ireq->i_type = op;
100 ireq->i_len = arg_len;
101 ireq->i_data = arg;
102
103 if (ioctl(drv->sock, SIOCG80211, ireq) < 0) {
104 wpa_printf(MSG_ERROR, "ioctl[SIOCS80211, op=%u, "
105 "arg_len=%u]: %s", op, arg_len, strerror(errno));
106 return -1;
107 }
108 return 0;
109 }
110
111 static int
112 get80211var(struct bsd_driver_data *drv, int op, void *arg, int arg_len)
113 {
114 struct ieee80211req ireq;
115
116 if (bsd_get80211(drv, &ireq, op, arg, arg_len) < 0)
117 return -1;
118 return ireq.i_len;
119 }
120
121 static int
122 set80211var(struct bsd_driver_data *drv, int op, const void *arg, int arg_len)
123 {
124 return bsd_set80211(drv, op, 0, arg, arg_len);
125 }
126
127 static int
128 set80211param(struct bsd_driver_data *drv, int op, int arg)
129 {
130 return bsd_set80211(drv, op, arg, NULL, 0);
131 }
132
133 static int
134 bsd_get_ssid(const char *ifname, void *priv, u8 *ssid, int len)
135 {
136 struct bsd_driver_data *drv = priv;
137 #ifdef SIOCG80211NWID
138 struct ieee80211_nwid nwid;
139 struct ifreq ifr;
140
141 os_memset(&ifr, 0, sizeof(ifr));
142 os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
143 ifr.ifr_data = (void *)&nwid;
144 if (ioctl(drv->sock, SIOCG80211NWID, &ifr) < 0 ||
145 nwid.i_len > IEEE80211_NWID_LEN)
146 return -1;
147 os_memcpy(ssid, nwid.i_nwid, nwid.i_len);
148 return nwid.i_len;
149 #else
150 return get80211var(drv, IEEE80211_IOC_SSID, ssid, IEEE80211_NWID_LEN);
151 #endif
152 }
153
154 static int
155 bsd_set_ssid(const char *ifname, void *priv, const u8 *ssid, int ssid_len)
156 {
157 struct bsd_driver_data *drv = priv;
158 #ifdef SIOCS80211NWID
159 struct ieee80211_nwid nwid;
160 struct ifreq ifr;
161
162 os_memcpy(nwid.i_nwid, ssid, ssid_len);
163 nwid.i_len = ssid_len;
164 os_memset(&ifr, 0, sizeof(ifr));
165 os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
166 ifr.ifr_data = (void *)&nwid;
167 return ioctl(drv->sock, SIOCS80211NWID, &ifr);
168 #else
169 return set80211var(drv, IEEE80211_IOC_SSID, ssid, ssid_len);
170 #endif
171 }
172
173 static int
174 bsd_get_if_media(void *priv)
175 {
176 struct bsd_driver_data *drv = priv;
177 struct ifmediareq ifmr;
178
179 os_memset(&ifmr, 0, sizeof(ifmr));
180 os_strlcpy(ifmr.ifm_name, drv->ifname, sizeof(ifmr.ifm_name));
181
182 if (ioctl(drv->sock, SIOCGIFMEDIA, &ifmr) < 0) {
183 wpa_printf(MSG_ERROR, "%s: SIOCGIFMEDIA %s", __func__,
184 strerror(errno));
185 return -1;
186 }
187
188 return ifmr.ifm_current;
189 }
190
191 static int
192 bsd_set_if_media(void *priv, int media)
193 {
194 struct bsd_driver_data *drv = priv;
195 struct ifreq ifr;
196
197 os_memset(&ifr, 0, sizeof(ifr));
198 os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
199 ifr.ifr_media = media;
200
201 if (ioctl(drv->sock, SIOCSIFMEDIA, &ifr) < 0) {
202 wpa_printf(MSG_ERROR, "%s: SIOCSIFMEDIA %s", __func__,
203 strerror(errno));
204 return -1;
205 }
206
207 return 0;
208 }
209
210 static int
211 bsd_set_mediaopt(void *priv, uint32_t mask, uint32_t mode)
212 {
213 int media = bsd_get_if_media(priv);
214
215 if (media < 0)
216 return -1;
217 media &= ~mask;
218 media |= mode;
219 if (bsd_set_if_media(priv, media) < 0)
220 return -1;
221 return 0;
222 }
223
224 static int
225 bsd_del_key(void *priv, const u8 *addr, int key_idx)
226 {
227 struct ieee80211req_del_key wk;
228
229 os_memset(&wk, 0, sizeof(wk));
230 if (addr == NULL) {
231 wpa_printf(MSG_DEBUG, "%s: key_idx=%d", __func__, key_idx);
232 wk.idk_keyix = key_idx;
233 } else {
234 wpa_printf(MSG_DEBUG, "%s: addr=" MACSTR, __func__,
235 MAC2STR(addr));
236 os_memcpy(wk.idk_macaddr, addr, IEEE80211_ADDR_LEN);
237 wk.idk_keyix = (u_int8_t) IEEE80211_KEYIX_NONE; /* XXX */
238 }
239
240 return set80211var(priv, IEEE80211_IOC_DELKEY, &wk, sizeof(wk));
241 }
242
243 static int
244 bsd_send_mlme_param(void *priv, const u8 op, const u16 reason, const u8 *addr)
245 {
246 struct ieee80211req_mlme mlme;
247
248 os_memset(&mlme, 0, sizeof(mlme));
249 mlme.im_op = op;
250 mlme.im_reason = reason;
251 os_memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
252 return set80211var(priv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme));
253 }
254
255 static int
256 bsd_ctrl_iface(void *priv, int enable)
257 {
258 struct bsd_driver_data *drv = priv;
259 struct ifreq ifr;
260
261 os_memset(&ifr, 0, sizeof(ifr));
262 os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
263
264 if (ioctl(drv->sock, SIOCGIFFLAGS, &ifr) < 0) {
265 perror("ioctl[SIOCGIFFLAGS]");
266 return -1;
267 }
268
269 if (enable)
270 ifr.ifr_flags |= IFF_UP;
271 else
272 ifr.ifr_flags &= ~IFF_UP;
273
274 if (ioctl(drv->sock, SIOCSIFFLAGS, &ifr) < 0) {
275 perror("ioctl[SIOCSIFFLAGS]");
276 return -1;
277 }
278
279 return 0;
280 }
281
282 static int
283 bsd_set_key(const char *ifname, void *priv, enum wpa_alg alg,
284 const unsigned char *addr, int key_idx, int set_tx, const u8 *seq,
285 size_t seq_len, const u8 *key, size_t key_len)
286 {
287 struct ieee80211req_key wk;
288
289 wpa_printf(MSG_DEBUG, "%s: alg=%d addr=%p key_idx=%d set_tx=%d "
290 "seq_len=%zu key_len=%zu", __func__, alg, addr, key_idx,
291 set_tx, seq_len, key_len);
292
293 if (alg == WPA_ALG_NONE) {
294 #ifndef HOSTAPD
295 if (addr == NULL ||
296 os_memcmp(addr, "\xff\xff\xff\xff\xff\xff",
297 IEEE80211_ADDR_LEN) == 0)
298 return bsd_del_key(priv, NULL, key_idx);
299 else
300 #endif /* HOSTAPD */
301 return bsd_del_key(priv, addr, key_idx);
302 }
303
304 os_memset(&wk, 0, sizeof(wk));
305 switch (alg) {
306 case WPA_ALG_WEP:
307 wk.ik_type = IEEE80211_CIPHER_WEP;
308 break;
309 case WPA_ALG_TKIP:
310 wk.ik_type = IEEE80211_CIPHER_TKIP;
311 break;
312 case WPA_ALG_CCMP:
313 wk.ik_type = IEEE80211_CIPHER_AES_CCM;
314 break;
315 default:
316 wpa_printf(MSG_ERROR, "%s: unknown alg=%d", __func__, alg);
317 return -1;
318 }
319
320 wk.ik_flags = IEEE80211_KEY_RECV;
321 if (set_tx)
322 wk.ik_flags |= IEEE80211_KEY_XMIT;
323
324 if (addr == NULL) {
325 os_memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
326 wk.ik_keyix = key_idx;
327 } else {
328 os_memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
329 /*
330 * Deduce whether group/global or unicast key by checking
331 * the address (yech). Note also that we can only mark global
332 * keys default; doing this for a unicast key is an error.
333 */
334 if (os_memcmp(addr, "\xff\xff\xff\xff\xff\xff",
335 IEEE80211_ADDR_LEN) == 0) {
336 wk.ik_flags |= IEEE80211_KEY_GROUP;
337 wk.ik_keyix = key_idx;
338 } else {
339 wk.ik_keyix = key_idx == 0 ? IEEE80211_KEYIX_NONE :
340 key_idx;
341 }
342 }
343 if (wk.ik_keyix != IEEE80211_KEYIX_NONE && set_tx)
344 wk.ik_flags |= IEEE80211_KEY_DEFAULT;
345 wk.ik_keylen = key_len;
346 os_memcpy(&wk.ik_keyrsc, seq, seq_len);
347 os_memcpy(wk.ik_keydata, key, key_len);
348
349 return set80211var(priv, IEEE80211_IOC_WPAKEY, &wk, sizeof(wk));
350 }
351
352 static int
353 bsd_configure_wpa(void *priv, struct wpa_bss_params *params)
354 {
355 #ifndef IEEE80211_IOC_APPIE
356 static const char *ciphernames[] =
357 { "WEP", "TKIP", "AES-OCB", "AES-CCM", "CKIP", "NONE" };
358 int v;
359
360 switch (params->wpa_group) {
361 case WPA_CIPHER_CCMP:
362 v = IEEE80211_CIPHER_AES_CCM;
363 break;
364 case WPA_CIPHER_TKIP:
365 v = IEEE80211_CIPHER_TKIP;
366 break;
367 case WPA_CIPHER_WEP104:
368 v = IEEE80211_CIPHER_WEP;
369 break;
370 case WPA_CIPHER_WEP40:
371 v = IEEE80211_CIPHER_WEP;
372 break;
373 case WPA_CIPHER_NONE:
374 v = IEEE80211_CIPHER_NONE;
375 break;
376 default:
377 printf("Unknown group key cipher %u\n",
378 params->wpa_group);
379 return -1;
380 }
381 wpa_printf(MSG_DEBUG, "%s: group key cipher=%s (%u)",
382 __func__, ciphernames[v], v);
383 if (set80211param(priv, IEEE80211_IOC_MCASTCIPHER, v)) {
384 printf("Unable to set group key cipher to %u (%s)\n",
385 v, ciphernames[v]);
386 return -1;
387 }
388 if (v == IEEE80211_CIPHER_WEP) {
389 /* key length is done only for specific ciphers */
390 v = (params->wpa_group == WPA_CIPHER_WEP104 ? 13 : 5);
391 if (set80211param(priv, IEEE80211_IOC_MCASTKEYLEN, v)) {
392 printf("Unable to set group key length to %u\n", v);
393 return -1;
394 }
395 }
396
397 v = 0;
398 if (params->wpa_pairwise & WPA_CIPHER_CCMP)
399 v |= 1<<IEEE80211_CIPHER_AES_CCM;
400 if (params->wpa_pairwise & WPA_CIPHER_TKIP)
401 v |= 1<<IEEE80211_CIPHER_TKIP;
402 if (params->wpa_pairwise & WPA_CIPHER_NONE)
403 v |= 1<<IEEE80211_CIPHER_NONE;
404 wpa_printf(MSG_DEBUG, "%s: pairwise key ciphers=0x%x", __func__, v);
405 if (set80211param(priv, IEEE80211_IOC_UCASTCIPHERS, v)) {
406 printf("Unable to set pairwise key ciphers to 0x%x\n", v);
407 return -1;
408 }
409
410 wpa_printf(MSG_DEBUG, "%s: key management algorithms=0x%x",
411 __func__, params->wpa_key_mgmt);
412 if (set80211param(priv, IEEE80211_IOC_KEYMGTALGS,
413 params->wpa_key_mgmt)) {
414 printf("Unable to set key management algorithms to 0x%x\n",
415 params->wpa_key_mgmt);
416 return -1;
417 }
418
419 v = 0;
420 if (params->rsn_preauth)
421 v |= BIT(0);
422 wpa_printf(MSG_DEBUG, "%s: rsn capabilities=0x%x",
423 __func__, params->rsn_preauth);
424 if (set80211param(priv, IEEE80211_IOC_RSNCAPS, v)) {
425 printf("Unable to set RSN capabilities to 0x%x\n", v);
426 return -1;
427 }
428 #endif /* IEEE80211_IOC_APPIE */
429
430 wpa_printf(MSG_DEBUG, "%s: enable WPA= 0x%x", __func__, params->wpa);
431 if (set80211param(priv, IEEE80211_IOC_WPA, params->wpa)) {
432 printf("Unable to set WPA to %u\n", params->wpa);
433 return -1;
434 }
435 return 0;
436 }
437
438 static int
439 bsd_set_ieee8021x(void *priv, struct wpa_bss_params *params)
440 {
441 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, params->enabled);
442
443 if (!params->enabled) {
444 /* XXX restore state */
445 return set80211param(priv, IEEE80211_IOC_AUTHMODE,
446 IEEE80211_AUTH_AUTO);
447 }
448 if (!params->wpa && !params->ieee802_1x) {
449 wpa_printf(MSG_ERROR, "%s: No 802.1X or WPA enabled",
450 __func__);
451 return -1;
452 }
453 if (params->wpa && bsd_configure_wpa(priv, params) != 0) {
454 wpa_printf(MSG_ERROR, "%s: Failed to configure WPA state",
455 __func__);
456 return -1;
457 }
458 if (set80211param(priv, IEEE80211_IOC_AUTHMODE,
459 (params->wpa ? IEEE80211_AUTH_WPA : IEEE80211_AUTH_8021X))) {
460 wpa_printf(MSG_ERROR, "%s: Failed to enable WPA/802.1X",
461 __func__);
462 return -1;
463 }
464 return bsd_ctrl_iface(priv, 1);
465 }
466
467 static int
468 bsd_set_sta_authorized(void *priv, const u8 *addr, int total_flags,
469 int flags_or, int flags_and)
470 {
471 int authorized = -1;
472
473 /* For now, only support setting Authorized flag */
474 if (flags_or & WPA_STA_AUTHORIZED)
475 authorized = 1;
476 if (!(flags_and & WPA_STA_AUTHORIZED))
477 authorized = 0;
478
479 if (authorized < 0)
480 return 0;
481
482 return bsd_send_mlme_param(priv, authorized ?
483 IEEE80211_MLME_AUTHORIZE :
484 IEEE80211_MLME_UNAUTHORIZE, 0, addr);
485 }
486
487 static void
488 bsd_new_sta(void *priv, void *ctx, u8 addr[IEEE80211_ADDR_LEN])
489 {
490 struct ieee80211req_wpaie ie;
491 int ielen = 0;
492 u8 *iebuf = NULL;
493
494 /*
495 * Fetch and validate any negotiated WPA/RSN parameters.
496 */
497 memset(&ie, 0, sizeof(ie));
498 memcpy(ie.wpa_macaddr, addr, IEEE80211_ADDR_LEN);
499 if (get80211var(priv, IEEE80211_IOC_WPAIE, &ie, sizeof(ie)) < 0) {
500 printf("Failed to get WPA/RSN information element.\n");
501 goto no_ie;
502 }
503 iebuf = ie.wpa_ie;
504 ielen = ie.wpa_ie[1];
505 if (ielen == 0)
506 iebuf = NULL;
507 else
508 ielen += 2;
509
510 no_ie:
511 drv_event_assoc(ctx, addr, iebuf, ielen);
512 }
513
514 static int
515 bsd_send_eapol(void *priv, const u8 *addr, const u8 *data, size_t data_len,
516 int encrypt, const u8 *own_addr)
517 {
518 struct bsd_driver_data *drv = priv;
519
520 wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", data, data_len);
521
522 return l2_packet_send(drv->sock_xmit, addr, ETH_P_EAPOL, data,
523 data_len);
524 }
525
526 static int
527 bsd_set_freq(void *priv, u16 channel)
528 {
529 struct bsd_driver_data *drv = priv;
530 #ifdef SIOCS80211CHANNEL
531 struct ieee80211chanreq creq;
532 #endif /* SIOCS80211CHANNEL */
533 u32 mode;
534
535 if (channel < 14)
536 mode = IFM_IEEE80211_11G;
537 else if (channel == 14)
538 mode = IFM_IEEE80211_11B;
539 else
540 mode = IFM_IEEE80211_11A;
541 if (bsd_set_mediaopt(drv, IFM_MMASK, mode) < 0) {
542 wpa_printf(MSG_ERROR, "%s: failed to set modulation mode",
543 __func__);
544 return -1;
545 }
546
547 #ifdef SIOCS80211CHANNEL
548 os_memset(&creq, 0, sizeof(creq));
549 os_strlcpy(creq.i_name, drv->ifname, sizeof(creq.i_name));
550 creq.i_channel = channel;
551 return ioctl(drv->sock, SIOCS80211CHANNEL, &creq);
552 #else /* SIOCS80211CHANNEL */
553 return set80211param(priv, IEEE80211_IOC_CHANNEL, channel);
554 #endif /* SIOCS80211CHANNEL */
555 }
556
557 static int
558 bsd_set_opt_ie(const char *ifname, void *priv, const u8 *ie, size_t ie_len)
559 {
560 #ifdef IEEE80211_IOC_APPIE
561 wpa_printf(MSG_DEBUG, "%s: set WPA+RSN ie (len %lu)", __func__,
562 (unsigned long)ie_len);
563 return bsd_set80211(priv, IEEE80211_IOC_APPIE, IEEE80211_APPIE_WPA,
564 ie, ie_len);
565 #endif /* IEEE80211_IOC_APPIE */
566 return 0;
567 }
568
569
570 #ifdef HOSTAPD
571
572 /*
573 * Avoid conflicts with hostapd definitions by undefining couple of defines
574 * from net80211 header files.
575 */
576 #undef RSN_VERSION
577 #undef WPA_VERSION
578 #undef WPA_OUI_TYPE
579
580 static int bsd_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
581 int reason_code);
582
583 static const char *
584 ether_sprintf(const u8 *addr)
585 {
586 static char buf[sizeof(MACSTR)];
587
588 if (addr != NULL)
589 snprintf(buf, sizeof(buf), MACSTR, MAC2STR(addr));
590 else
591 snprintf(buf, sizeof(buf), MACSTR, 0,0,0,0,0,0);
592 return buf;
593 }
594
595 static int
596 bsd_set_privacy(const char *ifname, void *priv, int enabled)
597 {
598 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
599
600 return set80211param(priv, IEEE80211_IOC_PRIVACY, enabled);
601 }
602
603 static int
604 bsd_get_seqnum(const char *ifname, void *priv, const u8 *addr, int idx,
605 u8 *seq)
606 {
607 struct ieee80211req_key wk;
608
609 wpa_printf(MSG_DEBUG, "%s: addr=%s idx=%d",
610 __func__, ether_sprintf(addr), idx);
611
612 memset(&wk, 0, sizeof(wk));
613 if (addr == NULL)
614 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
615 else
616 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
617 wk.ik_keyix = idx;
618
619 if (get80211var(priv, IEEE80211_IOC_WPAKEY, &wk, sizeof(wk)) < 0) {
620 printf("Failed to get encryption.\n");
621 return -1;
622 }
623
624 #ifdef WORDS_BIGENDIAN
625 {
626 /*
627 * wk.ik_keytsc is in host byte order (big endian), need to
628 * swap it to match with the byte order used in WPA.
629 */
630 int i;
631 u8 tmp[WPA_KEY_RSC_LEN];
632 memcpy(tmp, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
633 for (i = 0; i < WPA_KEY_RSC_LEN; i++) {
634 seq[i] = tmp[WPA_KEY_RSC_LEN - i - 1];
635 }
636 }
637 #else /* WORDS_BIGENDIAN */
638 memcpy(seq, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
639 #endif /* WORDS_BIGENDIAN */
640 return 0;
641 }
642
643
644 static int
645 bsd_flush(void *priv)
646 {
647 u8 allsta[IEEE80211_ADDR_LEN];
648
649 memset(allsta, 0xff, IEEE80211_ADDR_LEN);
650 return bsd_sta_deauth(priv, NULL, allsta, IEEE80211_REASON_AUTH_LEAVE);
651 }
652
653
654 static int
655 bsd_read_sta_driver_data(void *priv, struct hostap_sta_driver_data *data,
656 const u8 *addr)
657 {
658 struct ieee80211req_sta_stats stats;
659
660 memcpy(stats.is_u.macaddr, addr, IEEE80211_ADDR_LEN);
661 if (get80211var(priv, IEEE80211_IOC_STA_STATS, &stats, sizeof(stats))
662 > 0) {
663 /* XXX? do packets counts include non-data frames? */
664 data->rx_packets = stats.is_stats.ns_rx_data;
665 data->rx_bytes = stats.is_stats.ns_rx_bytes;
666 data->tx_packets = stats.is_stats.ns_tx_data;
667 data->tx_bytes = stats.is_stats.ns_tx_bytes;
668 }
669 return 0;
670 }
671
672 static int
673 bsd_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, int reason_code)
674 {
675 return bsd_send_mlme_param(priv, IEEE80211_MLME_DEAUTH, reason_code,
676 addr);
677 }
678
679 static int
680 bsd_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
681 int reason_code)
682 {
683 return bsd_send_mlme_param(priv, IEEE80211_MLME_DISASSOC, reason_code,
684 addr);
685 }
686
687 static void
688 bsd_wireless_event_receive(int sock, void *ctx, void *sock_ctx)
689 {
690 struct bsd_driver_data *drv = ctx;
691 char buf[2048];
692 struct if_announcemsghdr *ifan;
693 struct rt_msghdr *rtm;
694 struct ieee80211_michael_event *mic;
695 struct ieee80211_join_event *join;
696 struct ieee80211_leave_event *leave;
697 int n;
698 union wpa_event_data data;
699
700 n = read(sock, buf, sizeof(buf));
701 if (n < 0) {
702 if (errno != EINTR && errno != EAGAIN)
703 perror("read(PF_ROUTE)");
704 return;
705 }
706
707 rtm = (struct rt_msghdr *) buf;
708 if (rtm->rtm_version != RTM_VERSION) {
709 wpa_printf(MSG_DEBUG, "Routing message version %d not "
710 "understood\n", rtm->rtm_version);
711 return;
712 }
713 ifan = (struct if_announcemsghdr *) rtm;
714 switch (rtm->rtm_type) {
715 case RTM_IEEE80211:
716 switch (ifan->ifan_what) {
717 case RTM_IEEE80211_ASSOC:
718 case RTM_IEEE80211_REASSOC:
719 case RTM_IEEE80211_DISASSOC:
720 case RTM_IEEE80211_SCAN:
721 break;
722 case RTM_IEEE80211_LEAVE:
723 leave = (struct ieee80211_leave_event *) &ifan[1];
724 drv_event_disassoc(drv->hapd, leave->iev_addr);
725 break;
726 case RTM_IEEE80211_JOIN:
727 #ifdef RTM_IEEE80211_REJOIN
728 case RTM_IEEE80211_REJOIN:
729 #endif
730 join = (struct ieee80211_join_event *) &ifan[1];
731 bsd_new_sta(drv, drv->hapd, join->iev_addr);
732 break;
733 case RTM_IEEE80211_REPLAY:
734 /* ignore */
735 break;
736 case RTM_IEEE80211_MICHAEL:
737 mic = (struct ieee80211_michael_event *) &ifan[1];
738 wpa_printf(MSG_DEBUG,
739 "Michael MIC failure wireless event: "
740 "keyix=%u src_addr=" MACSTR, mic->iev_keyix,
741 MAC2STR(mic->iev_src));
742 os_memset(&data, 0, sizeof(data));
743 data.michael_mic_failure.unicast = 1;
744 data.michael_mic_failure.src = mic->iev_src;
745 wpa_supplicant_event(drv->hapd,
746 EVENT_MICHAEL_MIC_FAILURE, &data);
747 break;
748 }
749 break;
750 }
751 }
752
753 static void
754 handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
755 {
756 struct bsd_driver_data *drv = ctx;
757 drv_event_eapol_rx(drv->hapd, src_addr, buf, len);
758 }
759
760 static int
761 hostapd_bsd_set_freq(void *priv, struct hostapd_freq_params *freq)
762 {
763 return bsd_set_freq(priv, freq->channel);
764 }
765
766 static void *
767 bsd_init(struct hostapd_data *hapd, struct wpa_init_params *params)
768 {
769 struct bsd_driver_data *drv;
770
771 drv = os_zalloc(sizeof(struct bsd_driver_data));
772 if (drv == NULL) {
773 printf("Could not allocate memory for bsd driver data\n");
774 goto bad;
775 }
776
777 drv->hapd = hapd;
778 drv->sock = socket(PF_INET, SOCK_DGRAM, 0);
779 if (drv->sock < 0) {
780 perror("socket[PF_INET,SOCK_DGRAM]");
781 goto bad;
782 }
783 os_strlcpy(drv->ifname, params->ifname, sizeof(drv->ifname));
784
785 drv->sock_xmit = l2_packet_init(drv->ifname, NULL, ETH_P_EAPOL,
786 handle_read, drv, 0);
787 if (drv->sock_xmit == NULL)
788 goto bad;
789 if (l2_packet_get_own_addr(drv->sock_xmit, params->own_addr))
790 goto bad;
791
792 /* mark down during setup */
793 if (bsd_ctrl_iface(drv, 0) < 0)
794 goto bad;
795
796 drv->route = socket(PF_ROUTE, SOCK_RAW, 0);
797 if (drv->route < 0) {
798 perror("socket(PF_ROUTE,SOCK_RAW)");
799 goto bad;
800 }
801 eloop_register_read_sock(drv->route, bsd_wireless_event_receive, drv,
802 NULL);
803
804 if (bsd_set_mediaopt(drv, IFM_OMASK, IFM_IEEE80211_HOSTAP) < 0) {
805 wpa_printf(MSG_ERROR, "%s: failed to set operation mode",
806 __func__);
807 goto bad;
808 }
809
810 return drv;
811 bad:
812 if (drv->sock_xmit != NULL)
813 l2_packet_deinit(drv->sock_xmit);
814 if (drv->sock >= 0)
815 close(drv->sock);
816 if (drv != NULL)
817 os_free(drv);
818 return NULL;
819 }
820
821
822 static void
823 bsd_deinit(void *priv)
824 {
825 struct bsd_driver_data *drv = priv;
826
827 if (drv->route >= 0) {
828 eloop_unregister_read_sock(drv->route);
829 close(drv->route);
830 }
831 bsd_ctrl_iface(drv, 0);
832 if (drv->sock >= 0)
833 close(drv->sock);
834 if (drv->sock_xmit != NULL)
835 l2_packet_deinit(drv->sock_xmit);
836 os_free(drv);
837 }
838
839 #else /* HOSTAPD */
840
841 static int
842 get80211param(struct bsd_driver_data *drv, int op)
843 {
844 struct ieee80211req ireq;
845
846 if (bsd_get80211(drv, &ireq, op, NULL, 0) < 0)
847 return -1;
848 return ireq.i_val;
849 }
850
851 static int
852 wpa_driver_bsd_get_bssid(void *priv, u8 *bssid)
853 {
854 struct bsd_driver_data *drv = priv;
855 #ifdef SIOCG80211BSSID
856 struct ieee80211_bssid bs;
857
858 os_strlcpy(bs.i_name, drv->ifname, sizeof(bs.i_name));
859 if (ioctl(drv->sock, SIOCG80211BSSID, &bs) < 0)
860 return -1;
861 os_memcpy(bssid, bs.i_bssid, sizeof(bs.i_bssid));
862 return 0;
863 #else
864 return get80211var(drv, IEEE80211_IOC_BSSID,
865 bssid, IEEE80211_ADDR_LEN) < 0 ? -1 : 0;
866 #endif
867 }
868
869 static int
870 wpa_driver_bsd_get_ssid(void *priv, u8 *ssid)
871 {
872 struct bsd_driver_data *drv = priv;
873 return bsd_get_ssid(drv->ifname, drv, ssid, 0);
874 }
875
876 static int
877 wpa_driver_bsd_set_wpa_ie(struct bsd_driver_data *drv, const u8 *wpa_ie,
878 size_t wpa_ie_len)
879 {
880 #ifdef IEEE80211_IOC_APPIE
881 return bsd_set_opt_ie(drv->ifname, drv, wpa_ie, wpa_ie_len);
882 #else /* IEEE80211_IOC_APPIE */
883 return set80211var(drv, IEEE80211_IOC_OPTIE, wpa_ie, wpa_ie_len);
884 #endif /* IEEE80211_IOC_APPIE */
885 }
886
887 static int
888 wpa_driver_bsd_set_wpa_internal(void *priv, int wpa, int privacy)
889 {
890 int ret = 0;
891
892 wpa_printf(MSG_DEBUG, "%s: wpa=%d privacy=%d",
893 __FUNCTION__, wpa, privacy);
894
895 if (!wpa && wpa_driver_bsd_set_wpa_ie(priv, NULL, 0) < 0)
896 ret = -1;
897 if (set80211param(priv, IEEE80211_IOC_PRIVACY, privacy) < 0)
898 ret = -1;
899 if (set80211param(priv, IEEE80211_IOC_WPA, wpa) < 0)
900 ret = -1;
901
902 return ret;
903 }
904
905 static int
906 wpa_driver_bsd_set_wpa(void *priv, int enabled)
907 {
908 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
909
910 return wpa_driver_bsd_set_wpa_internal(priv, enabled ? 3 : 0, enabled);
911 }
912
913 static int
914 wpa_driver_bsd_set_countermeasures(void *priv, int enabled)
915 {
916 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
917 return set80211param(priv, IEEE80211_IOC_COUNTERMEASURES, enabled);
918 }
919
920
921 static int
922 wpa_driver_bsd_set_drop_unencrypted(void *priv, int enabled)
923 {
924 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
925 return set80211param(priv, IEEE80211_IOC_DROPUNENCRYPTED, enabled);
926 }
927
928 static int
929 wpa_driver_bsd_deauthenticate(void *priv, const u8 *addr, int reason_code)
930 {
931 return bsd_send_mlme_param(priv, IEEE80211_MLME_DEAUTH, reason_code,
932 addr);
933 }
934
935 static int
936 wpa_driver_bsd_disassociate(void *priv, const u8 *addr, int reason_code)
937 {
938 return bsd_send_mlme_param(priv, IEEE80211_MLME_DISASSOC, reason_code,
939 addr);
940 }
941
942 static int
943 wpa_driver_bsd_set_auth_alg(void *priv, int auth_alg)
944 {
945 int authmode;
946
947 if ((auth_alg & WPA_AUTH_ALG_OPEN) &&
948 (auth_alg & WPA_AUTH_ALG_SHARED))
949 authmode = IEEE80211_AUTH_AUTO;
950 else if (auth_alg & WPA_AUTH_ALG_SHARED)
951 authmode = IEEE80211_AUTH_SHARED;
952 else
953 authmode = IEEE80211_AUTH_OPEN;
954
955 return set80211param(priv, IEEE80211_IOC_AUTHMODE, authmode);
956 }
957
958 static void
959 handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
960 {
961 struct bsd_driver_data *drv = ctx;
962
963 drv_event_eapol_rx(drv->ctx, src_addr, buf, len);
964 }
965
966 static int
967 wpa_driver_bsd_associate(void *priv, struct wpa_driver_associate_params *params)
968 {
969 struct bsd_driver_data *drv = priv;
970 struct ieee80211req_mlme mlme;
971 u32 mode;
972 u16 channel;
973 int privacy;
974 int ret = 0;
975
976 wpa_printf(MSG_DEBUG,
977 "%s: ssid '%.*s' wpa ie len %u pairwise %u group %u key mgmt %u"
978 , __func__
979 , (unsigned int) params->ssid_len, params->ssid
980 , (unsigned int) params->wpa_ie_len
981 , params->pairwise_suite
982 , params->group_suite
983 , params->key_mgmt_suite
984 );
985
986 switch (params->mode) {
987 case IEEE80211_MODE_INFRA:
988 mode = 0 /* STA */;
989 break;
990 case IEEE80211_MODE_IBSS:
991 mode = IFM_IEEE80211_IBSS;
992 break;
993 case IEEE80211_MODE_AP:
994 mode = IFM_IEEE80211_HOSTAP;
995 break;
996 default:
997 wpa_printf(MSG_ERROR, "%s: unknown operation mode", __func__);
998 return -1;
999 }
1000 if (bsd_set_mediaopt(drv, IFM_OMASK, mode) < 0) {
1001 wpa_printf(MSG_ERROR, "%s: failed to set operation mode",
1002 __func__);
1003 return -1;
1004 }
1005
1006 if (params->mode == IEEE80211_MODE_AP) {
1007 if (params->freq >= 2412 && params->freq <= 2472)
1008 channel = (params->freq - 2407) / 5;
1009 else if (params->freq == 2484)
1010 channel = 14;
1011 else if ((params->freq >= 5180 && params->freq <= 5240) ||
1012 (params->freq >= 5745 && params->freq <= 5825))
1013 channel = (params->freq - 5000) / 5;
1014 else
1015 channel = 0;
1016 if (bsd_set_freq(drv, channel) < 0)
1017 return -1;
1018
1019 drv->sock_xmit = l2_packet_init(drv->ifname, NULL, ETH_P_EAPOL,
1020 handle_read, drv, 0);
1021 if (drv->sock_xmit == NULL)
1022 return -1;
1023 drv->is_ap = 1;
1024 return 0;
1025 }
1026
1027 if (wpa_driver_bsd_set_drop_unencrypted(drv, params->drop_unencrypted)
1028 < 0)
1029 ret = -1;
1030 if (wpa_driver_bsd_set_auth_alg(drv, params->auth_alg) < 0)
1031 ret = -1;
1032 /* XXX error handling is wrong but unclear what to do... */
1033 if (wpa_driver_bsd_set_wpa_ie(drv, params->wpa_ie, params->wpa_ie_len) < 0)
1034 return -1;
1035
1036 privacy = !(params->pairwise_suite == CIPHER_NONE &&
1037 params->group_suite == CIPHER_NONE &&
1038 params->key_mgmt_suite == KEY_MGMT_NONE &&
1039 params->wpa_ie_len == 0);
1040 wpa_printf(MSG_DEBUG, "%s: set PRIVACY %u", __func__, privacy);
1041
1042 if (set80211param(drv, IEEE80211_IOC_PRIVACY, privacy) < 0)
1043 return -1;
1044
1045 if (params->wpa_ie_len &&
1046 set80211param(drv, IEEE80211_IOC_WPA,
1047 params->wpa_ie[0] == WLAN_EID_RSN ? 2 : 1) < 0)
1048 return -1;
1049
1050 os_memset(&mlme, 0, sizeof(mlme));
1051 mlme.im_op = IEEE80211_MLME_ASSOC;
1052 if (params->ssid != NULL)
1053 os_memcpy(mlme.im_ssid, params->ssid, params->ssid_len);
1054 mlme.im_ssid_len = params->ssid_len;
1055 if (params->bssid != NULL)
1056 os_memcpy(mlme.im_macaddr, params->bssid, IEEE80211_ADDR_LEN);
1057 if (set80211var(drv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme)) < 0)
1058 return -1;
1059 return ret;
1060 }
1061
1062 static int
1063 wpa_driver_bsd_scan(void *priv, struct wpa_driver_scan_params *params)
1064 {
1065 struct bsd_driver_data *drv = priv;
1066 #ifdef IEEE80211_IOC_SCAN_MAX_SSID
1067 struct ieee80211_scan_req sr;
1068 int i;
1069 #endif /* IEEE80211_IOC_SCAN_MAX_SSID */
1070
1071 if (bsd_set_mediaopt(drv, IFM_OMASK, 0 /* STA */) < 0) {
1072 wpa_printf(MSG_ERROR, "%s: failed to set operation mode",
1073 __func__);
1074 return -1;
1075 }
1076
1077 if (set80211param(drv, IEEE80211_IOC_ROAMING,
1078 IEEE80211_ROAMING_MANUAL) < 0) {
1079 wpa_printf(MSG_ERROR, "%s: failed to set "
1080 "wpa_supplicant-based roaming: %s", __func__,
1081 strerror(errno));
1082 return -1;
1083 }
1084
1085 if (wpa_driver_bsd_set_wpa(drv, 1) < 0) {
1086 wpa_printf(MSG_ERROR, "%s: failed to set wpa: %s", __func__,
1087 strerror(errno));
1088 return -1;
1089 }
1090
1091 /* NB: interface must be marked UP to do a scan */
1092 if (bsd_ctrl_iface(drv, 1) < 0)
1093 return -1;
1094
1095 #ifdef IEEE80211_IOC_SCAN_MAX_SSID
1096 os_memset(&sr, 0, sizeof(sr));
1097 sr.sr_flags = IEEE80211_IOC_SCAN_ACTIVE | IEEE80211_IOC_SCAN_ONCE |
1098 IEEE80211_IOC_SCAN_NOJOIN;
1099 sr.sr_duration = IEEE80211_IOC_SCAN_FOREVER;
1100 if (params->num_ssids > 0) {
1101 sr.sr_nssid = params->num_ssids;
1102 #if 0
1103 /* Boundary check is done by upper layer */
1104 if (sr.sr_nssid > IEEE80211_IOC_SCAN_MAX_SSID)
1105 sr.sr_nssid = IEEE80211_IOC_SCAN_MAX_SSID;
1106 #endif
1107
1108 /* NB: check scan cache first */
1109 sr.sr_flags |= IEEE80211_IOC_SCAN_CHECK;
1110 }
1111 for (i = 0; i < sr.sr_nssid; i++) {
1112 sr.sr_ssid[i].len = params->ssids[i].ssid_len;
1113 os_memcpy(sr.sr_ssid[i].ssid, params->ssids[i].ssid,
1114 sr.sr_ssid[i].len);
1115 }
1116
1117 /* NB: net80211 delivers a scan complete event so no need to poll */
1118 return set80211var(drv, IEEE80211_IOC_SCAN_REQ, &sr, sizeof(sr));
1119 #else /* IEEE80211_IOC_SCAN_MAX_SSID */
1120 /* set desired ssid before scan */
1121 if (bsd_set_ssid(drv->ifname, drv, params->ssids[0].ssid,
1122 params->ssids[0].ssid_len) < 0)
1123 return -1;
1124
1125 /* NB: net80211 delivers a scan complete event so no need to poll */
1126 return set80211param(drv, IEEE80211_IOC_SCAN_REQ, 0);
1127 #endif /* IEEE80211_IOC_SCAN_MAX_SSID */
1128 }
1129
1130 static void
1131 wpa_driver_bsd_event_receive(int sock, void *ctx, void *sock_ctx)
1132 {
1133 struct bsd_driver_data *drv = sock_ctx;
1134 char buf[2048];
1135 struct if_announcemsghdr *ifan;
1136 struct if_msghdr *ifm;
1137 struct rt_msghdr *rtm;
1138 union wpa_event_data event;
1139 struct ieee80211_michael_event *mic;
1140 struct ieee80211_leave_event *leave;
1141 struct ieee80211_join_event *join;
1142 int n;
1143
1144 n = read(sock, buf, sizeof(buf));
1145 if (n < 0) {
1146 if (errno != EINTR && errno != EAGAIN)
1147 perror("read(PF_ROUTE)");
1148 return;
1149 }
1150
1151 rtm = (struct rt_msghdr *) buf;
1152 if (rtm->rtm_version != RTM_VERSION) {
1153 wpa_printf(MSG_DEBUG, "Routing message version %d not "
1154 "understood\n", rtm->rtm_version);
1155 return;
1156 }
1157 os_memset(&event, 0, sizeof(event));
1158 switch (rtm->rtm_type) {
1159 case RTM_IFANNOUNCE:
1160 ifan = (struct if_announcemsghdr *) rtm;
1161 if (ifan->ifan_index != drv->ifindex)
1162 break;
1163 strlcpy(event.interface_status.ifname, drv->ifname,
1164 sizeof(event.interface_status.ifname));
1165 switch (ifan->ifan_what) {
1166 case IFAN_DEPARTURE:
1167 event.interface_status.ievent = EVENT_INTERFACE_REMOVED;
1168 default:
1169 return;
1170 }
1171 wpa_printf(MSG_DEBUG, "RTM_IFANNOUNCE: Interface '%s' %s",
1172 event.interface_status.ifname,
1173 ifan->ifan_what == IFAN_DEPARTURE ?
1174 "removed" : "added");
1175 wpa_supplicant_event(ctx, EVENT_INTERFACE_STATUS, &event);
1176 break;
1177 case RTM_IEEE80211:
1178 ifan = (struct if_announcemsghdr *) rtm;
1179 if (ifan->ifan_index != drv->ifindex)
1180 break;
1181 switch (ifan->ifan_what) {
1182 case RTM_IEEE80211_ASSOC:
1183 case RTM_IEEE80211_REASSOC:
1184 if (drv->is_ap)
1185 break;
1186 wpa_supplicant_event(ctx, EVENT_ASSOC, NULL);
1187 break;
1188 case RTM_IEEE80211_DISASSOC:
1189 if (drv->is_ap)
1190 break;
1191 wpa_supplicant_event(ctx, EVENT_DISASSOC, NULL);
1192 break;
1193 case RTM_IEEE80211_SCAN:
1194 if (drv->is_ap)
1195 break;
1196 wpa_supplicant_event(ctx, EVENT_SCAN_RESULTS, NULL);
1197 break;
1198 case RTM_IEEE80211_LEAVE:
1199 leave = (struct ieee80211_leave_event *) &ifan[1];
1200 drv_event_disassoc(ctx, leave->iev_addr);
1201 break;
1202 case RTM_IEEE80211_JOIN:
1203 #ifdef RTM_IEEE80211_REJOIN
1204 case RTM_IEEE80211_REJOIN:
1205 #endif
1206 join = (struct ieee80211_join_event *) &ifan[1];
1207 bsd_new_sta(drv, ctx, join->iev_addr);
1208 break;
1209 case RTM_IEEE80211_REPLAY:
1210 /* ignore */
1211 break;
1212 case RTM_IEEE80211_MICHAEL:
1213 mic = (struct ieee80211_michael_event *) &ifan[1];
1214 wpa_printf(MSG_DEBUG,
1215 "Michael MIC failure wireless event: "
1216 "keyix=%u src_addr=" MACSTR, mic->iev_keyix,
1217 MAC2STR(mic->iev_src));
1218
1219 os_memset(&event, 0, sizeof(event));
1220 event.michael_mic_failure.unicast =
1221 !IEEE80211_IS_MULTICAST(mic->iev_dst);
1222 wpa_supplicant_event(ctx, EVENT_MICHAEL_MIC_FAILURE,
1223 &event);
1224 break;
1225 }
1226 break;
1227 case RTM_IFINFO:
1228 ifm = (struct if_msghdr *) rtm;
1229 if (ifm->ifm_index != drv->ifindex)
1230 break;
1231 if ((rtm->rtm_flags & RTF_UP) == 0) {
1232 strlcpy(event.interface_status.ifname, drv->ifname,
1233 sizeof(event.interface_status.ifname));
1234 event.interface_status.ievent = EVENT_INTERFACE_REMOVED;
1235 wpa_printf(MSG_DEBUG, "RTM_IFINFO: Interface '%s' DOWN",
1236 event.interface_status.ifname);
1237 wpa_supplicant_event(ctx, EVENT_INTERFACE_STATUS, &event);
1238 }
1239 break;
1240 }
1241 }
1242
1243 static void
1244 wpa_driver_bsd_add_scan_entry(struct wpa_scan_results *res,
1245 struct ieee80211req_scan_result *sr)
1246 {
1247 struct wpa_scan_res *result, **tmp;
1248 size_t extra_len;
1249 u8 *pos;
1250
1251 extra_len = 2 + sr->isr_ssid_len;
1252 extra_len += 2 + sr->isr_nrates;
1253 extra_len += 3; /* ERP IE */
1254 extra_len += sr->isr_ie_len;
1255
1256 result = os_zalloc(sizeof(*result) + extra_len);
1257 if (result == NULL)
1258 return;
1259 os_memcpy(result->bssid, sr->isr_bssid, ETH_ALEN);
1260 result->freq = sr->isr_freq;
1261 result->beacon_int = sr->isr_intval;
1262 result->caps = sr->isr_capinfo;
1263 result->qual = sr->isr_rssi;
1264 result->noise = sr->isr_noise;
1265
1266 pos = (u8 *)(result + 1);
1267
1268 *pos++ = WLAN_EID_SSID;
1269 *pos++ = sr->isr_ssid_len;
1270 os_memcpy(pos, sr + 1, sr->isr_ssid_len);
1271 pos += sr->isr_ssid_len;
1272
1273 /*
1274 * Deal all rates as supported rate.
1275 * Because net80211 doesn't report extended supported rate or not.
1276 */
1277 *pos++ = WLAN_EID_SUPP_RATES;
1278 *pos++ = sr->isr_nrates;
1279 os_memcpy(pos, sr->isr_rates, sr->isr_nrates);
1280 pos += sr->isr_nrates;
1281
1282 *pos++ = WLAN_EID_ERP_INFO;
1283 *pos++ = 1;
1284 *pos++ = sr->isr_erp;
1285
1286 os_memcpy(pos, (u8 *)(sr + 1) + sr->isr_ssid_len, sr->isr_ie_len);
1287 pos += sr->isr_ie_len;
1288
1289 result->ie_len = pos - (u8 *)(result + 1);
1290
1291 tmp = os_realloc(res->res,
1292 (res->num + 1) * sizeof(struct wpa_scan_res *));
1293 if (tmp == NULL) {
1294 os_free(result);
1295 return;
1296 }
1297 tmp[res->num++] = result;
1298 res->res = tmp;
1299 }
1300
1301 struct wpa_scan_results *
1302 wpa_driver_bsd_get_scan_results2(void *priv)
1303 {
1304 struct ieee80211req_scan_result *sr;
1305 struct wpa_scan_results *res;
1306 int len, rest;
1307 uint8_t buf[24*1024], *pos;
1308
1309 len = get80211var(priv, IEEE80211_IOC_SCAN_RESULTS, buf, 24*1024);
1310 if (len < 0)
1311 return NULL;
1312
1313 res = os_zalloc(sizeof(*res));
1314 if (res == NULL)
1315 return NULL;
1316
1317 pos = buf;
1318 rest = len;
1319 while (rest >= sizeof(struct ieee80211req_scan_result)) {
1320 sr = (struct ieee80211req_scan_result *)pos;
1321 wpa_driver_bsd_add_scan_entry(res, sr);
1322 pos += sr->isr_len;
1323 rest -= sr->isr_len;
1324 }
1325
1326 wpa_printf(MSG_DEBUG, "Received %d bytes of scan results (%lu BSSes)",
1327 len, (unsigned long)res->num);
1328
1329 return res;
1330 }
1331
1332 static int wpa_driver_bsd_capa(struct bsd_driver_data *drv)
1333 {
1334 #ifdef IEEE80211_IOC_DEVCAPS
1335 /* kernel definitions copied from net80211/ieee80211_var.h */
1336 #define IEEE80211_CIPHER_WEP 0
1337 #define IEEE80211_CIPHER_TKIP 1
1338 #define IEEE80211_CIPHER_AES_CCM 3
1339 #define IEEE80211_CRYPTO_WEP (1<<IEEE80211_CIPHER_WEP)
1340 #define IEEE80211_CRYPTO_TKIP (1<<IEEE80211_CIPHER_TKIP)
1341 #define IEEE80211_CRYPTO_AES_CCM (1<<IEEE80211_CIPHER_AES_CCM)
1342 #define IEEE80211_C_HOSTAP 0x00000400 /* CAPABILITY: HOSTAP avail */
1343 #define IEEE80211_C_WPA1 0x00800000 /* CAPABILITY: WPA1 avail */
1344 #define IEEE80211_C_WPA2 0x01000000 /* CAPABILITY: WPA2 avail */
1345 struct ieee80211_devcaps_req devcaps;
1346
1347 if (get80211var(drv, IEEE80211_IOC_DEVCAPS, &devcaps,
1348 sizeof(devcaps)) < 0) {
1349 wpa_printf(MSG_ERROR, "failed to IEEE80211_IOC_DEVCAPS: %s",
1350 strerror(errno));
1351 return -1;
1352 }
1353
1354 wpa_printf(MSG_DEBUG, "%s: drivercaps=0x%08x,cryptocaps=0x%08x",
1355 __func__, devcaps.dc_drivercaps, devcaps.dc_cryptocaps);
1356
1357 if (devcaps.dc_drivercaps & IEEE80211_C_WPA1)
1358 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
1359 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK;
1360 if (devcaps.dc_drivercaps & IEEE80211_C_WPA2)
1361 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
1362 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
1363
1364 if (devcaps.dc_cryptocaps & IEEE80211_CRYPTO_WEP)
1365 drv->capa.enc |= WPA_DRIVER_CAPA_ENC_WEP40 |
1366 WPA_DRIVER_CAPA_ENC_WEP104;
1367 if (devcaps.dc_cryptocaps & IEEE80211_CRYPTO_TKIP)
1368 drv->capa.enc |= WPA_DRIVER_CAPA_ENC_TKIP;
1369 if (devcaps.dc_cryptocaps & IEEE80211_CRYPTO_AES_CCM)
1370 drv->capa.enc |= WPA_DRIVER_CAPA_ENC_CCMP;
1371
1372 if (devcaps.dc_drivercaps & IEEE80211_C_HOSTAP)
1373 drv->capa.flags |= WPA_DRIVER_FLAGS_AP;
1374 #undef IEEE80211_CIPHER_WEP
1375 #undef IEEE80211_CIPHER_TKIP
1376 #undef IEEE80211_CIPHER_AES_CCM
1377 #undef IEEE80211_CRYPTO_WEP
1378 #undef IEEE80211_CRYPTO_TKIP
1379 #undef IEEE80211_CRYPTO_AES_CCM
1380 #undef IEEE80211_C_HOSTAP
1381 #undef IEEE80211_C_WPA1
1382 #undef IEEE80211_C_WPA2
1383 #else /* IEEE80211_IOC_DEVCAPS */
1384 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */
1385 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
1386 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
1387 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
1388 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
1389 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 |
1390 WPA_DRIVER_CAPA_ENC_WEP104 |
1391 WPA_DRIVER_CAPA_ENC_TKIP |
1392 WPA_DRIVER_CAPA_ENC_CCMP;
1393 drv->capa.flags |= WPA_DRIVER_FLAGS_AP;
1394 #endif /* IEEE80211_IOC_DEVCAPS */
1395 #ifdef IEEE80211_IOC_SCAN_MAX_SSID
1396 drv->capa.max_scan_ssids = IEEE80211_IOC_SCAN_MAX_SSID;
1397 #else /* IEEE80211_IOC_SCAN_MAX_SSID */
1398 drv->capa.max_scan_ssids = 1;
1399 #endif /* IEEE80211_IOC_SCAN_MAX_SSID */
1400 drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
1401 WPA_DRIVER_AUTH_SHARED |
1402 WPA_DRIVER_AUTH_LEAP;
1403 return 0;
1404 }
1405
1406 static void *
1407 wpa_driver_bsd_init(void *ctx, const char *ifname)
1408 {
1409 #define GETPARAM(drv, param, v) \
1410 (((v) = get80211param(drv, param)) != -1)
1411 struct bsd_driver_data *drv;
1412
1413 drv = os_zalloc(sizeof(*drv));
1414 if (drv == NULL)
1415 return NULL;
1416 /*
1417 * NB: We require the interface name be mappable to an index.
1418 * This implies we do not support having wpa_supplicant
1419 * wait for an interface to appear. This seems ok; that
1420 * doesn't belong here; it's really the job of devd.
1421 */
1422 drv->ifindex = if_nametoindex(ifname);
1423 if (drv->ifindex == 0) {
1424 wpa_printf(MSG_DEBUG, "%s: interface %s does not exist",
1425 __func__, ifname);
1426 goto fail1;
1427 }
1428 drv->sock = socket(PF_INET, SOCK_DGRAM, 0);
1429 if (drv->sock < 0)
1430 goto fail1;
1431 drv->route = socket(PF_ROUTE, SOCK_RAW, 0);
1432 if (drv->route < 0)
1433 goto fail;
1434 eloop_register_read_sock(drv->route,
1435 wpa_driver_bsd_event_receive, ctx, drv);
1436
1437 drv->ctx = ctx;
1438 os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
1439
1440 /* Down interface during setup. */
1441 if (bsd_ctrl_iface(drv, 0) < 0)
1442 goto fail;
1443
1444 if (!GETPARAM(drv, IEEE80211_IOC_ROAMING, drv->prev_roaming)) {
1445 wpa_printf(MSG_DEBUG, "%s: failed to get roaming state: %s",
1446 __func__, strerror(errno));
1447 goto fail;
1448 }
1449 if (!GETPARAM(drv, IEEE80211_IOC_PRIVACY, drv->prev_privacy)) {
1450 wpa_printf(MSG_DEBUG, "%s: failed to get privacy state: %s",
1451 __func__, strerror(errno));
1452 goto fail;
1453 }
1454 if (!GETPARAM(drv, IEEE80211_IOC_WPA, drv->prev_wpa)) {
1455 wpa_printf(MSG_DEBUG, "%s: failed to get wpa state: %s",
1456 __func__, strerror(errno));
1457 goto fail;
1458 }
1459
1460 if (wpa_driver_bsd_capa(drv))
1461 goto fail;
1462
1463 return drv;
1464 fail:
1465 close(drv->sock);
1466 fail1:
1467 os_free(drv);
1468 return NULL;
1469 #undef GETPARAM
1470 }
1471
1472 static void
1473 wpa_driver_bsd_deinit(void *priv)
1474 {
1475 struct bsd_driver_data *drv = priv;
1476
1477 wpa_driver_bsd_set_wpa(drv, 0);
1478 eloop_unregister_read_sock(drv->route);
1479
1480 /* NB: mark interface down */
1481 bsd_ctrl_iface(drv, 0);
1482
1483 wpa_driver_bsd_set_wpa_internal(drv, drv->prev_wpa, drv->prev_privacy);
1484 if (set80211param(drv, IEEE80211_IOC_ROAMING, drv->prev_roaming) < 0)
1485 wpa_printf(MSG_DEBUG, "%s: failed to restore roaming state",
1486 __func__);
1487
1488 if (drv->sock_xmit != NULL)
1489 l2_packet_deinit(drv->sock_xmit);
1490 (void) close(drv->route); /* ioctl socket */
1491 (void) close(drv->sock); /* event socket */
1492 os_free(drv);
1493 }
1494
1495 static int
1496 wpa_driver_bsd_get_capa(void *priv, struct wpa_driver_capa *capa)
1497 {
1498 struct bsd_driver_data *drv = priv;
1499
1500 os_memcpy(capa, &drv->capa, sizeof(*capa));
1501 return 0;
1502 }
1503 #endif /* HOSTAPD */
1504
1505
1506 const struct wpa_driver_ops wpa_driver_bsd_ops = {
1507 .name = "bsd",
1508 .desc = "BSD 802.11 support",
1509 #ifdef HOSTAPD
1510 .hapd_init = bsd_init,
1511 .hapd_deinit = bsd_deinit,
1512 .set_privacy = bsd_set_privacy,
1513 .get_seqnum = bsd_get_seqnum,
1514 .flush = bsd_flush,
1515 .read_sta_data = bsd_read_sta_driver_data,
1516 .sta_disassoc = bsd_sta_disassoc,
1517 .sta_deauth = bsd_sta_deauth,
1518 .set_freq = hostapd_bsd_set_freq,
1519 #else /* HOSTAPD */
1520 .init = wpa_driver_bsd_init,
1521 .deinit = wpa_driver_bsd_deinit,
1522 .get_bssid = wpa_driver_bsd_get_bssid,
1523 .get_ssid = wpa_driver_bsd_get_ssid,
1524 .set_countermeasures = wpa_driver_bsd_set_countermeasures,
1525 .scan2 = wpa_driver_bsd_scan,
1526 .get_scan_results2 = wpa_driver_bsd_get_scan_results2,
1527 .deauthenticate = wpa_driver_bsd_deauthenticate,
1528 .disassociate = wpa_driver_bsd_disassociate,
1529 .associate = wpa_driver_bsd_associate,
1530 .get_capa = wpa_driver_bsd_get_capa,
1531 #endif /* HOSTAPD */
1532 .set_key = bsd_set_key,
1533 .set_ieee8021x = bsd_set_ieee8021x,
1534 .hapd_set_ssid = bsd_set_ssid,
1535 .hapd_get_ssid = bsd_get_ssid,
1536 .hapd_send_eapol = bsd_send_eapol,
1537 .sta_set_flags = bsd_set_sta_authorized,
1538 .set_generic_elem = bsd_set_opt_ie,
1539 };
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