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FreeBSD: Add support for FreeBSD 8.0 STA/AP
[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_set80211var(int s, const char *ifname, int op, const void *arg, int arg_len)
71 {
72 struct ieee80211req ireq;
73
74 os_memset(&ireq, 0, sizeof(ireq));
75 os_strlcpy(ireq.i_name, ifname, sizeof(ireq.i_name));
76 ireq.i_type = op;
77 ireq.i_len = arg_len;
78 ireq.i_data = (void *) arg;
79
80 if (ioctl(s, SIOCS80211, &ireq) < 0) {
81 fprintf(stderr, "ioctl[SIOCS80211, op %u, len %u]: %s\n",
82 op, arg_len, strerror(errno));
83 return -1;
84 }
85 return 0;
86 }
87
88 static int
89 bsd_get80211var(int s, const char *ifname, int op, void *arg, int arg_len)
90 {
91 struct ieee80211req ireq;
92
93 os_memset(&ireq, 0, sizeof(ireq));
94 os_strlcpy(ireq.i_name, ifname, sizeof(ireq.i_name));
95 ireq.i_type = op;
96 ireq.i_len = arg_len;
97 ireq.i_data = arg;
98
99 if (ioctl(s, SIOCG80211, &ireq) < 0) {
100 fprintf(stderr, "ioctl[SIOCG80211, op %u, len %u]: %s\n",
101 op, arg_len, strerror(errno));
102 return -1;
103 }
104 return ireq.i_len;
105 }
106
107 static int
108 bsd_set80211param(int s, const char *ifname, int op, int arg)
109 {
110 struct ieee80211req ireq;
111
112 os_memset(&ireq, 0, sizeof(ireq));
113 os_strlcpy(ireq.i_name, ifname, sizeof(ireq.i_name));
114 ireq.i_type = op;
115 ireq.i_val = arg;
116
117 if (ioctl(s, SIOCS80211, &ireq) < 0) {
118 fprintf(stderr, "ioctl[SIOCS80211, op %u, arg 0x%x]: %s\n",
119 op, arg, strerror(errno));
120 return -1;
121 }
122 return 0;
123 }
124
125 static int
126 get80211var(struct bsd_driver_data *drv, int op, void *arg, int arg_len)
127 {
128 return bsd_get80211var(drv->sock, drv->ifname, op, arg, arg_len);
129 }
130
131 static int
132 set80211var(struct bsd_driver_data *drv, int op, const void *arg, int arg_len)
133 {
134 return bsd_set80211var(drv->sock, drv->ifname, op, arg, arg_len);
135 }
136
137 static int
138 set80211param(struct bsd_driver_data *drv, int op, int arg)
139 {
140 return bsd_set80211param(drv->sock, drv->ifname, op, arg);
141 }
142
143 static int
144 bsd_get_ssid(const char *ifname, void *priv, u8 *ssid, int len)
145 {
146 struct bsd_driver_data *drv = priv;
147 #ifdef SIOCG80211NWID
148 struct ieee80211_nwid nwid;
149 struct ifreq ifr;
150
151 os_memset(&ifr, 0, sizeof(ifr));
152 os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
153 ifr.ifr_data = (void *)&nwid;
154 if (ioctl(drv->sock, SIOCG80211NWID, &ifr) < 0 ||
155 nwid.i_len > IEEE80211_NWID_LEN)
156 return -1;
157 os_memcpy(ssid, nwid.i_nwid, nwid.i_len);
158 return nwid.i_len;
159 #else
160 return get80211var(drv, IEEE80211_IOC_SSID, ssid, IEEE80211_NWID_LEN);
161 #endif
162 }
163
164 static int
165 bsd_set_ssid(const char *ifname, void *priv, const u8 *ssid, int ssid_len)
166 {
167 struct bsd_driver_data *drv = priv;
168 #ifdef SIOCS80211NWID
169 struct ieee80211_nwid nwid;
170 struct ifreq ifr;
171
172 os_memcpy(nwid.i_nwid, ssid, ssid_len);
173 nwid.i_len = ssid_len;
174 os_memset(&ifr, 0, sizeof(ifr));
175 os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
176 ifr.ifr_data = (void *)&nwid;
177 return ioctl(drv->sock, SIOCS80211NWID, &ifr);
178 #else
179 return set80211var(drv, IEEE80211_IOC_SSID, ssid, ssid_len);
180 #endif
181 }
182
183 static int
184 bsd_get_if_media(void *priv)
185 {
186 struct bsd_driver_data *drv = priv;
187 struct ifmediareq ifmr;
188
189 os_memset(&ifmr, 0, sizeof(ifmr));
190 os_strlcpy(ifmr.ifm_name, drv->ifname, sizeof(ifmr.ifm_name));
191
192 if (ioctl(drv->sock, SIOCGIFMEDIA, &ifmr) < 0) {
193 wpa_printf(MSG_ERROR, "%s: SIOCGIFMEDIA %s", __func__,
194 strerror(errno));
195 return -1;
196 }
197
198 return ifmr.ifm_current;
199 }
200
201 static int
202 bsd_set_if_media(void *priv, int media)
203 {
204 struct bsd_driver_data *drv = priv;
205 struct ifreq ifr;
206
207 os_memset(&ifr, 0, sizeof(ifr));
208 os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
209 ifr.ifr_media = media;
210
211 if (ioctl(drv->sock, SIOCSIFMEDIA, &ifr) < 0) {
212 wpa_printf(MSG_ERROR, "%s: SIOCSIFMEDIA %s", __func__,
213 strerror(errno));
214 return -1;
215 }
216
217 return 0;
218 }
219
220 static int
221 bsd_set_mediaopt(void *priv, uint32_t mask, uint32_t mode)
222 {
223 int media = bsd_get_if_media(priv);
224
225 if (media < 0)
226 return -1;
227 media &= ~mask;
228 media |= mode;
229 if (bsd_set_if_media(priv, media) < 0)
230 return -1;
231 return 0;
232 }
233
234 static int
235 bsd_del_key(void *priv, const u8 *addr, int key_idx)
236 {
237 struct ieee80211req_del_key wk;
238
239 os_memset(&wk, 0, sizeof(wk));
240 if (addr == NULL) {
241 wpa_printf(MSG_DEBUG, "%s: key_idx=%d", __func__, key_idx);
242 wk.idk_keyix = key_idx;
243 } else {
244 wpa_printf(MSG_DEBUG, "%s: addr=" MACSTR, __func__,
245 MAC2STR(addr));
246 os_memcpy(wk.idk_macaddr, addr, IEEE80211_ADDR_LEN);
247 wk.idk_keyix = (u_int8_t) IEEE80211_KEYIX_NONE; /* XXX */
248 }
249
250 return set80211var(priv, IEEE80211_IOC_DELKEY, &wk, sizeof(wk));
251 }
252
253 static int
254 bsd_send_mlme_param(void *priv, const u8 op, const u16 reason, const u8 *addr)
255 {
256 struct ieee80211req_mlme mlme;
257
258 os_memset(&mlme, 0, sizeof(mlme));
259 mlme.im_op = op;
260 mlme.im_reason = reason;
261 os_memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
262 return set80211var(priv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme));
263 }
264
265 static int
266 bsd_ctrl_iface(void *priv, int enable)
267 {
268 struct bsd_driver_data *drv = priv;
269 struct ifreq ifr;
270
271 os_memset(&ifr, 0, sizeof(ifr));
272 os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
273
274 if (ioctl(drv->sock, SIOCGIFFLAGS, &ifr) < 0) {
275 perror("ioctl[SIOCGIFFLAGS]");
276 return -1;
277 }
278
279 if (enable)
280 ifr.ifr_flags |= IFF_UP;
281 else
282 ifr.ifr_flags &= ~IFF_UP;
283
284 if (ioctl(drv->sock, SIOCSIFFLAGS, &ifr) < 0) {
285 perror("ioctl[SIOCSIFFLAGS]");
286 return -1;
287 }
288
289 return 0;
290 }
291
292 static int
293 bsd_set_key(const char *ifname, void *priv, enum wpa_alg alg,
294 const unsigned char *addr, int key_idx, int set_tx, const u8 *seq,
295 size_t seq_len, const u8 *key, size_t key_len)
296 {
297 struct ieee80211req_key wk;
298
299 wpa_printf(MSG_DEBUG, "%s: alg=%d addr=%p key_idx=%d set_tx=%d "
300 "seq_len=%zu key_len=%zu", __func__, alg, addr, key_idx,
301 set_tx, seq_len, key_len);
302
303 if (alg == WPA_ALG_NONE) {
304 #ifndef HOSTAPD
305 if (addr == NULL ||
306 os_memcmp(addr, "\xff\xff\xff\xff\xff\xff",
307 IEEE80211_ADDR_LEN) == 0)
308 return bsd_del_key(priv, NULL, key_idx);
309 else
310 #endif /* HOSTAPD */
311 return bsd_del_key(priv, addr, key_idx);
312 }
313
314 os_memset(&wk, 0, sizeof(wk));
315 switch (alg) {
316 case WPA_ALG_WEP:
317 wk.ik_type = IEEE80211_CIPHER_WEP;
318 break;
319 case WPA_ALG_TKIP:
320 wk.ik_type = IEEE80211_CIPHER_TKIP;
321 break;
322 case WPA_ALG_CCMP:
323 wk.ik_type = IEEE80211_CIPHER_AES_CCM;
324 break;
325 default:
326 wpa_printf(MSG_ERROR, "%s: unknown alg=%d", __func__, alg);
327 return -1;
328 }
329
330 wk.ik_flags = IEEE80211_KEY_RECV;
331 if (set_tx)
332 wk.ik_flags |= IEEE80211_KEY_XMIT;
333
334 if (addr == NULL) {
335 os_memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
336 wk.ik_keyix = key_idx;
337 } else {
338 os_memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
339 /*
340 * Deduce whether group/global or unicast key by checking
341 * the address (yech). Note also that we can only mark global
342 * keys default; doing this for a unicast key is an error.
343 */
344 if (os_memcmp(addr, "\xff\xff\xff\xff\xff\xff",
345 IEEE80211_ADDR_LEN) == 0) {
346 wk.ik_flags |= IEEE80211_KEY_GROUP;
347 wk.ik_keyix = key_idx;
348 } else {
349 wk.ik_keyix = key_idx == 0 ? IEEE80211_KEYIX_NONE :
350 key_idx;
351 }
352 }
353 if (wk.ik_keyix != IEEE80211_KEYIX_NONE && set_tx)
354 wk.ik_flags |= IEEE80211_KEY_DEFAULT;
355 wk.ik_keylen = key_len;
356 os_memcpy(&wk.ik_keyrsc, seq, seq_len);
357 os_memcpy(wk.ik_keydata, key, key_len);
358
359 return set80211var(priv, IEEE80211_IOC_WPAKEY, &wk, sizeof(wk));
360 }
361
362 static int
363 bsd_configure_wpa(void *priv, struct wpa_bss_params *params)
364 {
365 #ifndef IEEE80211_IOC_APPIE
366 static const char *ciphernames[] =
367 { "WEP", "TKIP", "AES-OCB", "AES-CCM", "CKIP", "NONE" };
368 int v;
369
370 switch (params->wpa_group) {
371 case WPA_CIPHER_CCMP:
372 v = IEEE80211_CIPHER_AES_CCM;
373 break;
374 case WPA_CIPHER_TKIP:
375 v = IEEE80211_CIPHER_TKIP;
376 break;
377 case WPA_CIPHER_WEP104:
378 v = IEEE80211_CIPHER_WEP;
379 break;
380 case WPA_CIPHER_WEP40:
381 v = IEEE80211_CIPHER_WEP;
382 break;
383 case WPA_CIPHER_NONE:
384 v = IEEE80211_CIPHER_NONE;
385 break;
386 default:
387 printf("Unknown group key cipher %u\n",
388 params->wpa_group);
389 return -1;
390 }
391 wpa_printf(MSG_DEBUG, "%s: group key cipher=%s (%u)",
392 __func__, ciphernames[v], v);
393 if (set80211param(priv, IEEE80211_IOC_MCASTCIPHER, v)) {
394 printf("Unable to set group key cipher to %u (%s)\n",
395 v, ciphernames[v]);
396 return -1;
397 }
398 if (v == IEEE80211_CIPHER_WEP) {
399 /* key length is done only for specific ciphers */
400 v = (params->wpa_group == WPA_CIPHER_WEP104 ? 13 : 5);
401 if (set80211param(priv, IEEE80211_IOC_MCASTKEYLEN, v)) {
402 printf("Unable to set group key length to %u\n", v);
403 return -1;
404 }
405 }
406
407 v = 0;
408 if (params->wpa_pairwise & WPA_CIPHER_CCMP)
409 v |= 1<<IEEE80211_CIPHER_AES_CCM;
410 if (params->wpa_pairwise & WPA_CIPHER_TKIP)
411 v |= 1<<IEEE80211_CIPHER_TKIP;
412 if (params->wpa_pairwise & WPA_CIPHER_NONE)
413 v |= 1<<IEEE80211_CIPHER_NONE;
414 wpa_printf(MSG_DEBUG, "%s: pairwise key ciphers=0x%x", __func__, v);
415 if (set80211param(priv, IEEE80211_IOC_UCASTCIPHERS, v)) {
416 printf("Unable to set pairwise key ciphers to 0x%x\n", v);
417 return -1;
418 }
419
420 wpa_printf(MSG_DEBUG, "%s: key management algorithms=0x%x",
421 __func__, params->wpa_key_mgmt);
422 if (set80211param(priv, IEEE80211_IOC_KEYMGTALGS,
423 params->wpa_key_mgmt)) {
424 printf("Unable to set key management algorithms to 0x%x\n",
425 params->wpa_key_mgmt);
426 return -1;
427 }
428
429 v = 0;
430 if (params->rsn_preauth)
431 v |= BIT(0);
432 wpa_printf(MSG_DEBUG, "%s: rsn capabilities=0x%x",
433 __func__, params->rsn_preauth);
434 if (set80211param(priv, IEEE80211_IOC_RSNCAPS, v)) {
435 printf("Unable to set RSN capabilities to 0x%x\n", v);
436 return -1;
437 }
438 #endif /* IEEE80211_IOC_APPIE */
439
440 wpa_printf(MSG_DEBUG, "%s: enable WPA= 0x%x", __func__, params->wpa);
441 if (set80211param(priv, IEEE80211_IOC_WPA, params->wpa)) {
442 printf("Unable to set WPA to %u\n", params->wpa);
443 return -1;
444 }
445 return 0;
446 }
447
448 static int
449 bsd_set_ieee8021x(void *priv, struct wpa_bss_params *params)
450 {
451 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, params->enabled);
452
453 if (!params->enabled) {
454 /* XXX restore state */
455 return set80211param(priv, IEEE80211_IOC_AUTHMODE,
456 IEEE80211_AUTH_AUTO);
457 }
458 if (!params->wpa && !params->ieee802_1x) {
459 wpa_printf(MSG_ERROR, "%s: No 802.1X or WPA enabled",
460 __func__);
461 return -1;
462 }
463 if (params->wpa && bsd_configure_wpa(priv, params) != 0) {
464 wpa_printf(MSG_ERROR, "%s: Failed to configure WPA state",
465 __func__);
466 return -1;
467 }
468 if (set80211param(priv, IEEE80211_IOC_AUTHMODE,
469 (params->wpa ? IEEE80211_AUTH_WPA : IEEE80211_AUTH_8021X))) {
470 wpa_printf(MSG_ERROR, "%s: Failed to enable WPA/802.1X",
471 __func__);
472 return -1;
473 }
474 return bsd_ctrl_iface(priv, 1);
475 }
476
477 static int
478 bsd_set_sta_authorized(void *priv, const u8 *addr, int total_flags,
479 int flags_or, int flags_and)
480 {
481 int authorized = -1;
482
483 /* For now, only support setting Authorized flag */
484 if (flags_or & WPA_STA_AUTHORIZED)
485 authorized = 1;
486 if (!(flags_and & WPA_STA_AUTHORIZED))
487 authorized = 0;
488
489 if (authorized < 0)
490 return 0;
491
492 return bsd_send_mlme_param(priv, authorized ?
493 IEEE80211_MLME_AUTHORIZE :
494 IEEE80211_MLME_UNAUTHORIZE, 0, addr);
495 }
496
497 static void
498 bsd_new_sta(void *priv, void *ctx, u8 addr[IEEE80211_ADDR_LEN])
499 {
500 struct ieee80211req_wpaie ie;
501 int ielen = 0;
502 u8 *iebuf = NULL;
503
504 /*
505 * Fetch and validate any negotiated WPA/RSN parameters.
506 */
507 memset(&ie, 0, sizeof(ie));
508 memcpy(ie.wpa_macaddr, addr, IEEE80211_ADDR_LEN);
509 if (get80211var(priv, IEEE80211_IOC_WPAIE, &ie, sizeof(ie)) < 0) {
510 printf("Failed to get WPA/RSN information element.\n");
511 goto no_ie;
512 }
513 iebuf = ie.wpa_ie;
514 ielen = ie.wpa_ie[1];
515 if (ielen == 0)
516 iebuf = NULL;
517 else
518 ielen += 2;
519
520 no_ie:
521 drv_event_assoc(ctx, addr, iebuf, ielen);
522 }
523
524 static int
525 bsd_send_eapol(void *priv, const u8 *addr, const u8 *data, size_t data_len,
526 int encrypt, const u8 *own_addr)
527 {
528 struct bsd_driver_data *drv = priv;
529
530 wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", data, data_len);
531
532 return l2_packet_send(drv->sock_xmit, addr, ETH_P_EAPOL, data,
533 data_len);
534 }
535
536 static int
537 bsd_set_freq(void *priv, u16 channel)
538 {
539 struct bsd_driver_data *drv = priv;
540 #ifdef SIOCS80211CHANNEL
541 struct ieee80211chanreq creq;
542 #endif /* SIOCS80211CHANNEL */
543 u32 mode;
544
545 if (channel < 14)
546 mode = IFM_IEEE80211_11G;
547 else if (channel == 14)
548 mode = IFM_IEEE80211_11B;
549 else
550 mode = IFM_IEEE80211_11A;
551 if (bsd_set_mediaopt(drv, IFM_MMASK, mode) < 0) {
552 wpa_printf(MSG_ERROR, "%s: failed to set modulation mode",
553 __func__);
554 return -1;
555 }
556
557 #ifdef SIOCS80211CHANNEL
558 os_memset(&creq, 0, sizeof(creq));
559 os_strlcpy(creq.i_name, drv->ifname, sizeof(creq.i_name));
560 creq.i_channel = channel;
561 return ioctl(drv->sock, SIOCS80211CHANNEL, &creq);
562 #else /* SIOCS80211CHANNEL */
563 return set80211param(priv, IEEE80211_IOC_CHANNEL, channel);
564 #endif /* SIOCS80211CHANNEL */
565 }
566
567 static int
568 bsd_set_opt_ie(const char *ifname, void *priv, const u8 *ie, size_t ie_len)
569 {
570 #ifdef IEEE80211_IOC_APPIE
571 struct bsd_driver_data *drv = priv;
572 struct ieee80211req ireq;
573
574 os_memset(&ireq, 0, sizeof(ireq));
575 os_strlcpy(ireq.i_name, drv->ifname, sizeof(ireq.i_name));
576 ireq.i_type = IEEE80211_IOC_APPIE;
577 ireq.i_val = IEEE80211_APPIE_WPA;
578 ireq.i_data = (void *) ie;
579 ireq.i_len = ie_len;
580
581 wpa_printf(MSG_DEBUG, "%s: set WPA+RSN ie (len %lu)", __func__,
582 (unsigned long)ie_len);
583 if (ioctl(drv->sock, SIOCS80211, &ireq) < 0) {
584 perror("Unable to set WPA+RSN ie");
585 return -1;
586 }
587 #endif /* IEEE80211_IOC_APPIE */
588 return 0;
589 }
590
591
592 #ifdef HOSTAPD
593
594 /*
595 * Avoid conflicts with hostapd definitions by undefining couple of defines
596 * from net80211 header files.
597 */
598 #undef RSN_VERSION
599 #undef WPA_VERSION
600 #undef WPA_OUI_TYPE
601
602 static int bsd_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
603 int reason_code);
604
605 static const char *
606 ether_sprintf(const u8 *addr)
607 {
608 static char buf[sizeof(MACSTR)];
609
610 if (addr != NULL)
611 snprintf(buf, sizeof(buf), MACSTR, MAC2STR(addr));
612 else
613 snprintf(buf, sizeof(buf), MACSTR, 0,0,0,0,0,0);
614 return buf;
615 }
616
617 static int
618 bsd_set_privacy(const char *ifname, void *priv, int enabled)
619 {
620 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
621
622 return set80211param(priv, IEEE80211_IOC_PRIVACY, enabled);
623 }
624
625 static int
626 bsd_get_seqnum(const char *ifname, void *priv, const u8 *addr, int idx,
627 u8 *seq)
628 {
629 struct ieee80211req_key wk;
630
631 wpa_printf(MSG_DEBUG, "%s: addr=%s idx=%d",
632 __func__, ether_sprintf(addr), idx);
633
634 memset(&wk, 0, sizeof(wk));
635 if (addr == NULL)
636 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
637 else
638 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
639 wk.ik_keyix = idx;
640
641 if (get80211var(priv, IEEE80211_IOC_WPAKEY, &wk, sizeof(wk)) < 0) {
642 printf("Failed to get encryption.\n");
643 return -1;
644 }
645
646 #ifdef WORDS_BIGENDIAN
647 {
648 /*
649 * wk.ik_keytsc is in host byte order (big endian), need to
650 * swap it to match with the byte order used in WPA.
651 */
652 int i;
653 u8 tmp[WPA_KEY_RSC_LEN];
654 memcpy(tmp, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
655 for (i = 0; i < WPA_KEY_RSC_LEN; i++) {
656 seq[i] = tmp[WPA_KEY_RSC_LEN - i - 1];
657 }
658 }
659 #else /* WORDS_BIGENDIAN */
660 memcpy(seq, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
661 #endif /* WORDS_BIGENDIAN */
662 return 0;
663 }
664
665
666 static int
667 bsd_flush(void *priv)
668 {
669 u8 allsta[IEEE80211_ADDR_LEN];
670
671 memset(allsta, 0xff, IEEE80211_ADDR_LEN);
672 return bsd_sta_deauth(priv, NULL, allsta, IEEE80211_REASON_AUTH_LEAVE);
673 }
674
675
676 static int
677 bsd_read_sta_driver_data(void *priv, struct hostap_sta_driver_data *data,
678 const u8 *addr)
679 {
680 struct ieee80211req_sta_stats stats;
681
682 memcpy(stats.is_u.macaddr, addr, IEEE80211_ADDR_LEN);
683 if (get80211var(priv, IEEE80211_IOC_STA_STATS, &stats, sizeof(stats))
684 > 0) {
685 /* XXX? do packets counts include non-data frames? */
686 data->rx_packets = stats.is_stats.ns_rx_data;
687 data->rx_bytes = stats.is_stats.ns_rx_bytes;
688 data->tx_packets = stats.is_stats.ns_tx_data;
689 data->tx_bytes = stats.is_stats.ns_tx_bytes;
690 }
691 return 0;
692 }
693
694 static int
695 bsd_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, int reason_code)
696 {
697 return bsd_send_mlme_param(priv, IEEE80211_MLME_DEAUTH, reason_code,
698 addr);
699 }
700
701 static int
702 bsd_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
703 int reason_code)
704 {
705 return bsd_send_mlme_param(priv, IEEE80211_MLME_DISASSOC, reason_code,
706 addr);
707 }
708
709 static void
710 bsd_wireless_event_receive(int sock, void *ctx, void *sock_ctx)
711 {
712 struct bsd_driver_data *drv = ctx;
713 char buf[2048];
714 struct if_announcemsghdr *ifan;
715 struct rt_msghdr *rtm;
716 struct ieee80211_michael_event *mic;
717 struct ieee80211_join_event *join;
718 struct ieee80211_leave_event *leave;
719 int n;
720 union wpa_event_data data;
721
722 n = read(sock, buf, sizeof(buf));
723 if (n < 0) {
724 if (errno != EINTR && errno != EAGAIN)
725 perror("read(PF_ROUTE)");
726 return;
727 }
728
729 rtm = (struct rt_msghdr *) buf;
730 if (rtm->rtm_version != RTM_VERSION) {
731 wpa_printf(MSG_DEBUG, "Routing message version %d not "
732 "understood\n", rtm->rtm_version);
733 return;
734 }
735 ifan = (struct if_announcemsghdr *) rtm;
736 switch (rtm->rtm_type) {
737 case RTM_IEEE80211:
738 switch (ifan->ifan_what) {
739 case RTM_IEEE80211_ASSOC:
740 case RTM_IEEE80211_REASSOC:
741 case RTM_IEEE80211_DISASSOC:
742 case RTM_IEEE80211_SCAN:
743 break;
744 case RTM_IEEE80211_LEAVE:
745 leave = (struct ieee80211_leave_event *) &ifan[1];
746 drv_event_disassoc(drv->hapd, leave->iev_addr);
747 break;
748 case RTM_IEEE80211_JOIN:
749 #ifdef RTM_IEEE80211_REJOIN
750 case RTM_IEEE80211_REJOIN:
751 #endif
752 join = (struct ieee80211_join_event *) &ifan[1];
753 bsd_new_sta(drv, drv->hapd, join->iev_addr);
754 break;
755 case RTM_IEEE80211_REPLAY:
756 /* ignore */
757 break;
758 case RTM_IEEE80211_MICHAEL:
759 mic = (struct ieee80211_michael_event *) &ifan[1];
760 wpa_printf(MSG_DEBUG,
761 "Michael MIC failure wireless event: "
762 "keyix=%u src_addr=" MACSTR, mic->iev_keyix,
763 MAC2STR(mic->iev_src));
764 os_memset(&data, 0, sizeof(data));
765 data.michael_mic_failure.unicast = 1;
766 data.michael_mic_failure.src = mic->iev_src;
767 wpa_supplicant_event(drv->hapd,
768 EVENT_MICHAEL_MIC_FAILURE, &data);
769 break;
770 }
771 break;
772 }
773 }
774
775 static void
776 handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
777 {
778 struct bsd_driver_data *drv = ctx;
779 drv_event_eapol_rx(drv->hapd, src_addr, buf, len);
780 }
781
782 static int
783 hostapd_bsd_set_freq(void *priv, struct hostapd_freq_params *freq)
784 {
785 return bsd_set_freq(priv, freq->channel);
786 }
787
788 static void *
789 bsd_init(struct hostapd_data *hapd, struct wpa_init_params *params)
790 {
791 struct bsd_driver_data *drv;
792
793 drv = os_zalloc(sizeof(struct bsd_driver_data));
794 if (drv == NULL) {
795 printf("Could not allocate memory for bsd driver data\n");
796 goto bad;
797 }
798
799 drv->hapd = hapd;
800 drv->sock = socket(PF_INET, SOCK_DGRAM, 0);
801 if (drv->sock < 0) {
802 perror("socket[PF_INET,SOCK_DGRAM]");
803 goto bad;
804 }
805 os_strlcpy(drv->ifname, params->ifname, sizeof(drv->ifname));
806
807 drv->sock_xmit = l2_packet_init(drv->ifname, NULL, ETH_P_EAPOL,
808 handle_read, drv, 0);
809 if (drv->sock_xmit == NULL)
810 goto bad;
811 if (l2_packet_get_own_addr(drv->sock_xmit, params->own_addr))
812 goto bad;
813
814 /* mark down during setup */
815 if (bsd_ctrl_iface(drv, 0) < 0)
816 goto bad;
817
818 drv->route = socket(PF_ROUTE, SOCK_RAW, 0);
819 if (drv->route < 0) {
820 perror("socket(PF_ROUTE,SOCK_RAW)");
821 goto bad;
822 }
823 eloop_register_read_sock(drv->route, bsd_wireless_event_receive, drv,
824 NULL);
825
826 if (bsd_set_mediaopt(drv, IFM_OMASK, IFM_IEEE80211_HOSTAP) < 0) {
827 wpa_printf(MSG_ERROR, "%s: failed to set operation mode",
828 __func__);
829 goto bad;
830 }
831
832 return drv;
833 bad:
834 if (drv->sock_xmit != NULL)
835 l2_packet_deinit(drv->sock_xmit);
836 if (drv->sock >= 0)
837 close(drv->sock);
838 if (drv != NULL)
839 os_free(drv);
840 return NULL;
841 }
842
843
844 static void
845 bsd_deinit(void *priv)
846 {
847 struct bsd_driver_data *drv = priv;
848
849 if (drv->route >= 0) {
850 eloop_unregister_read_sock(drv->route);
851 close(drv->route);
852 }
853 bsd_ctrl_iface(drv, 0);
854 if (drv->sock >= 0)
855 close(drv->sock);
856 if (drv->sock_xmit != NULL)
857 l2_packet_deinit(drv->sock_xmit);
858 os_free(drv);
859 }
860
861 #else /* HOSTAPD */
862
863 static int
864 get80211param(struct bsd_driver_data *drv, int op)
865 {
866 struct ieee80211req ireq;
867
868 os_memset(&ireq, 0, sizeof(ireq));
869 os_strlcpy(ireq.i_name, drv->ifname, sizeof(ireq.i_name));
870 ireq.i_type = op;
871
872 if (ioctl(drv->sock, SIOCG80211, &ireq) < 0) {
873 fprintf(stderr, "ioctl[SIOCG80211, op %u]: %s\n",
874 op, strerror(errno));
875 return -1;
876 }
877 return ireq.i_val;
878 }
879
880 static int
881 wpa_driver_bsd_get_bssid(void *priv, u8 *bssid)
882 {
883 struct bsd_driver_data *drv = priv;
884 #ifdef SIOCG80211BSSID
885 struct ieee80211_bssid bs;
886
887 os_strlcpy(bs.i_name, drv->ifname, sizeof(bs.i_name));
888 if (ioctl(drv->sock, SIOCG80211BSSID, &bs) < 0)
889 return -1;
890 os_memcpy(bssid, bs.i_bssid, sizeof(bs.i_bssid));
891 return 0;
892 #else
893 return get80211var(drv, IEEE80211_IOC_BSSID,
894 bssid, IEEE80211_ADDR_LEN) < 0 ? -1 : 0;
895 #endif
896 }
897
898 static int
899 wpa_driver_bsd_get_ssid(void *priv, u8 *ssid)
900 {
901 struct bsd_driver_data *drv = priv;
902 return bsd_get_ssid(drv->ifname, drv, ssid, 0);
903 }
904
905 static int
906 wpa_driver_bsd_set_wpa_ie(struct bsd_driver_data *drv, const u8 *wpa_ie,
907 size_t wpa_ie_len)
908 {
909 #ifdef IEEE80211_IOC_APPIE
910 return bsd_set_opt_ie(drv->ifname, drv, wpa_ie, wpa_ie_len);
911 #else /* IEEE80211_IOC_APPIE */
912 return set80211var(drv, IEEE80211_IOC_OPTIE, wpa_ie, wpa_ie_len);
913 #endif /* IEEE80211_IOC_APPIE */
914 }
915
916 static int
917 wpa_driver_bsd_set_wpa_internal(void *priv, int wpa, int privacy)
918 {
919 int ret = 0;
920
921 wpa_printf(MSG_DEBUG, "%s: wpa=%d privacy=%d",
922 __FUNCTION__, wpa, privacy);
923
924 if (!wpa && wpa_driver_bsd_set_wpa_ie(priv, NULL, 0) < 0)
925 ret = -1;
926 if (set80211param(priv, IEEE80211_IOC_PRIVACY, privacy) < 0)
927 ret = -1;
928 if (set80211param(priv, IEEE80211_IOC_WPA, wpa) < 0)
929 ret = -1;
930
931 return ret;
932 }
933
934 static int
935 wpa_driver_bsd_set_wpa(void *priv, int enabled)
936 {
937 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
938
939 return wpa_driver_bsd_set_wpa_internal(priv, enabled ? 3 : 0, enabled);
940 }
941
942 static int
943 wpa_driver_bsd_set_countermeasures(void *priv, int enabled)
944 {
945 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
946 return set80211param(priv, IEEE80211_IOC_COUNTERMEASURES, enabled);
947 }
948
949
950 static int
951 wpa_driver_bsd_set_drop_unencrypted(void *priv, int enabled)
952 {
953 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
954 return set80211param(priv, IEEE80211_IOC_DROPUNENCRYPTED, enabled);
955 }
956
957 static int
958 wpa_driver_bsd_deauthenticate(void *priv, const u8 *addr, int reason_code)
959 {
960 return bsd_send_mlme_param(priv, IEEE80211_MLME_DEAUTH, reason_code,
961 addr);
962 }
963
964 static int
965 wpa_driver_bsd_disassociate(void *priv, const u8 *addr, int reason_code)
966 {
967 return bsd_send_mlme_param(priv, IEEE80211_MLME_DISASSOC, reason_code,
968 addr);
969 }
970
971 static int
972 wpa_driver_bsd_set_auth_alg(void *priv, int auth_alg)
973 {
974 int authmode;
975
976 if ((auth_alg & WPA_AUTH_ALG_OPEN) &&
977 (auth_alg & WPA_AUTH_ALG_SHARED))
978 authmode = IEEE80211_AUTH_AUTO;
979 else if (auth_alg & WPA_AUTH_ALG_SHARED)
980 authmode = IEEE80211_AUTH_SHARED;
981 else
982 authmode = IEEE80211_AUTH_OPEN;
983
984 return set80211param(priv, IEEE80211_IOC_AUTHMODE, authmode);
985 }
986
987 static void
988 handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
989 {
990 struct bsd_driver_data *drv = ctx;
991
992 drv_event_eapol_rx(drv->ctx, src_addr, buf, len);
993 }
994
995 static int
996 wpa_driver_bsd_associate(void *priv, struct wpa_driver_associate_params *params)
997 {
998 struct bsd_driver_data *drv = priv;
999 struct ieee80211req_mlme mlme;
1000 u32 mode;
1001 u16 channel;
1002 int privacy;
1003 int ret = 0;
1004
1005 wpa_printf(MSG_DEBUG,
1006 "%s: ssid '%.*s' wpa ie len %u pairwise %u group %u key mgmt %u"
1007 , __func__
1008 , (unsigned int) params->ssid_len, params->ssid
1009 , (unsigned int) params->wpa_ie_len
1010 , params->pairwise_suite
1011 , params->group_suite
1012 , params->key_mgmt_suite
1013 );
1014
1015 switch (params->mode) {
1016 case IEEE80211_MODE_INFRA:
1017 mode = 0 /* STA */;
1018 break;
1019 case IEEE80211_MODE_IBSS:
1020 mode = IFM_IEEE80211_IBSS;
1021 break;
1022 case IEEE80211_MODE_AP:
1023 mode = IFM_IEEE80211_HOSTAP;
1024 break;
1025 default:
1026 wpa_printf(MSG_ERROR, "%s: unknown operation mode", __func__);
1027 return -1;
1028 }
1029 if (bsd_set_mediaopt(drv, IFM_OMASK, mode) < 0) {
1030 wpa_printf(MSG_ERROR, "%s: failed to set operation mode",
1031 __func__);
1032 return -1;
1033 }
1034
1035 if (params->mode == IEEE80211_MODE_AP) {
1036 if (params->freq >= 2412 && params->freq <= 2472)
1037 channel = (params->freq - 2407) / 5;
1038 else if (params->freq == 2484)
1039 channel = 14;
1040 else if ((params->freq >= 5180 && params->freq <= 5240) ||
1041 (params->freq >= 5745 && params->freq <= 5825))
1042 channel = (params->freq - 5000) / 5;
1043 else
1044 channel = 0;
1045 if (bsd_set_freq(drv, channel) < 0)
1046 return -1;
1047
1048 drv->sock_xmit = l2_packet_init(drv->ifname, NULL, ETH_P_EAPOL,
1049 handle_read, drv, 0);
1050 if (drv->sock_xmit == NULL)
1051 return -1;
1052 drv->is_ap = 1;
1053 return 0;
1054 }
1055
1056 if (wpa_driver_bsd_set_drop_unencrypted(drv, params->drop_unencrypted)
1057 < 0)
1058 ret = -1;
1059 if (wpa_driver_bsd_set_auth_alg(drv, params->auth_alg) < 0)
1060 ret = -1;
1061 /* XXX error handling is wrong but unclear what to do... */
1062 if (wpa_driver_bsd_set_wpa_ie(drv, params->wpa_ie, params->wpa_ie_len) < 0)
1063 return -1;
1064
1065 privacy = !(params->pairwise_suite == CIPHER_NONE &&
1066 params->group_suite == CIPHER_NONE &&
1067 params->key_mgmt_suite == KEY_MGMT_NONE &&
1068 params->wpa_ie_len == 0);
1069 wpa_printf(MSG_DEBUG, "%s: set PRIVACY %u", __func__, privacy);
1070
1071 if (set80211param(drv, IEEE80211_IOC_PRIVACY, privacy) < 0)
1072 return -1;
1073
1074 if (params->wpa_ie_len &&
1075 set80211param(drv, IEEE80211_IOC_WPA,
1076 params->wpa_ie[0] == WLAN_EID_RSN ? 2 : 1) < 0)
1077 return -1;
1078
1079 os_memset(&mlme, 0, sizeof(mlme));
1080 mlme.im_op = IEEE80211_MLME_ASSOC;
1081 if (params->ssid != NULL)
1082 os_memcpy(mlme.im_ssid, params->ssid, params->ssid_len);
1083 mlme.im_ssid_len = params->ssid_len;
1084 if (params->bssid != NULL)
1085 os_memcpy(mlme.im_macaddr, params->bssid, IEEE80211_ADDR_LEN);
1086 if (set80211var(drv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme)) < 0)
1087 return -1;
1088 return ret;
1089 }
1090
1091 static int
1092 wpa_driver_bsd_scan(void *priv, struct wpa_driver_scan_params *params)
1093 {
1094 struct bsd_driver_data *drv = priv;
1095 #ifdef IEEE80211_IOC_SCAN_MAX_SSID
1096 struct ieee80211_scan_req sr;
1097 int i;
1098 #endif /* IEEE80211_IOC_SCAN_MAX_SSID */
1099
1100 if (bsd_set_mediaopt(drv, IFM_OMASK, 0 /* STA */) < 0) {
1101 wpa_printf(MSG_ERROR, "%s: failed to set operation mode",
1102 __func__);
1103 return -1;
1104 }
1105
1106 if (set80211param(drv, IEEE80211_IOC_ROAMING,
1107 IEEE80211_ROAMING_MANUAL) < 0) {
1108 wpa_printf(MSG_ERROR, "%s: failed to set "
1109 "wpa_supplicant-based roaming: %s", __func__,
1110 strerror(errno));
1111 return -1;
1112 }
1113
1114 if (wpa_driver_bsd_set_wpa(drv, 1) < 0) {
1115 wpa_printf(MSG_ERROR, "%s: failed to set wpa: %s", __func__,
1116 strerror(errno));
1117 return -1;
1118 }
1119
1120 /* NB: interface must be marked UP to do a scan */
1121 if (bsd_ctrl_iface(drv, 1) < 0)
1122 return -1;
1123
1124 #ifdef IEEE80211_IOC_SCAN_MAX_SSID
1125 os_memset(&sr, 0, sizeof(sr));
1126 sr.sr_flags = IEEE80211_IOC_SCAN_ACTIVE | IEEE80211_IOC_SCAN_ONCE |
1127 IEEE80211_IOC_SCAN_NOJOIN;
1128 sr.sr_duration = IEEE80211_IOC_SCAN_FOREVER;
1129 if (params->num_ssids > 0) {
1130 sr.sr_nssid = params->num_ssids;
1131 #if 0
1132 /* Boundary check is done by upper layer */
1133 if (sr.sr_nssid > IEEE80211_IOC_SCAN_MAX_SSID)
1134 sr.sr_nssid = IEEE80211_IOC_SCAN_MAX_SSID;
1135 #endif
1136
1137 /* NB: check scan cache first */
1138 sr.sr_flags |= IEEE80211_IOC_SCAN_CHECK;
1139 }
1140 for (i = 0; i < sr.sr_nssid; i++) {
1141 sr.sr_ssid[i].len = params->ssids[i].ssid_len;
1142 os_memcpy(sr.sr_ssid[i].ssid, params->ssids[i].ssid,
1143 sr.sr_ssid[i].len);
1144 }
1145
1146 /* NB: net80211 delivers a scan complete event so no need to poll */
1147 return set80211var(drv, IEEE80211_IOC_SCAN_REQ, &sr, sizeof(sr));
1148 #else /* IEEE80211_IOC_SCAN_MAX_SSID */
1149 /* set desired ssid before scan */
1150 if (bsd_set_ssid(drv->ifname, drv, params->ssids[0].ssid,
1151 params->ssids[0].ssid_len) < 0)
1152 return -1;
1153
1154 /* NB: net80211 delivers a scan complete event so no need to poll */
1155 return set80211param(drv, IEEE80211_IOC_SCAN_REQ, 0);
1156 #endif /* IEEE80211_IOC_SCAN_MAX_SSID */
1157 }
1158
1159 static void
1160 wpa_driver_bsd_event_receive(int sock, void *ctx, void *sock_ctx)
1161 {
1162 struct bsd_driver_data *drv = sock_ctx;
1163 char buf[2048];
1164 struct if_announcemsghdr *ifan;
1165 struct if_msghdr *ifm;
1166 struct rt_msghdr *rtm;
1167 union wpa_event_data event;
1168 struct ieee80211_michael_event *mic;
1169 struct ieee80211_leave_event *leave;
1170 struct ieee80211_join_event *join;
1171 int n;
1172
1173 n = read(sock, buf, sizeof(buf));
1174 if (n < 0) {
1175 if (errno != EINTR && errno != EAGAIN)
1176 perror("read(PF_ROUTE)");
1177 return;
1178 }
1179
1180 rtm = (struct rt_msghdr *) buf;
1181 if (rtm->rtm_version != RTM_VERSION) {
1182 wpa_printf(MSG_DEBUG, "Routing message version %d not "
1183 "understood\n", rtm->rtm_version);
1184 return;
1185 }
1186 os_memset(&event, 0, sizeof(event));
1187 switch (rtm->rtm_type) {
1188 case RTM_IFANNOUNCE:
1189 ifan = (struct if_announcemsghdr *) rtm;
1190 if (ifan->ifan_index != drv->ifindex)
1191 break;
1192 strlcpy(event.interface_status.ifname, drv->ifname,
1193 sizeof(event.interface_status.ifname));
1194 switch (ifan->ifan_what) {
1195 case IFAN_DEPARTURE:
1196 event.interface_status.ievent = EVENT_INTERFACE_REMOVED;
1197 default:
1198 return;
1199 }
1200 wpa_printf(MSG_DEBUG, "RTM_IFANNOUNCE: Interface '%s' %s",
1201 event.interface_status.ifname,
1202 ifan->ifan_what == IFAN_DEPARTURE ?
1203 "removed" : "added");
1204 wpa_supplicant_event(ctx, EVENT_INTERFACE_STATUS, &event);
1205 break;
1206 case RTM_IEEE80211:
1207 ifan = (struct if_announcemsghdr *) rtm;
1208 if (ifan->ifan_index != drv->ifindex)
1209 break;
1210 switch (ifan->ifan_what) {
1211 case RTM_IEEE80211_ASSOC:
1212 case RTM_IEEE80211_REASSOC:
1213 if (drv->is_ap)
1214 break;
1215 wpa_supplicant_event(ctx, EVENT_ASSOC, NULL);
1216 break;
1217 case RTM_IEEE80211_DISASSOC:
1218 if (drv->is_ap)
1219 break;
1220 wpa_supplicant_event(ctx, EVENT_DISASSOC, NULL);
1221 break;
1222 case RTM_IEEE80211_SCAN:
1223 if (drv->is_ap)
1224 break;
1225 wpa_supplicant_event(ctx, EVENT_SCAN_RESULTS, NULL);
1226 break;
1227 case RTM_IEEE80211_LEAVE:
1228 leave = (struct ieee80211_leave_event *) &ifan[1];
1229 drv_event_disassoc(ctx, leave->iev_addr);
1230 break;
1231 case RTM_IEEE80211_JOIN:
1232 #ifdef RTM_IEEE80211_REJOIN
1233 case RTM_IEEE80211_REJOIN:
1234 #endif
1235 join = (struct ieee80211_join_event *) &ifan[1];
1236 bsd_new_sta(drv, ctx, join->iev_addr);
1237 break;
1238 case RTM_IEEE80211_REPLAY:
1239 /* ignore */
1240 break;
1241 case RTM_IEEE80211_MICHAEL:
1242 mic = (struct ieee80211_michael_event *) &ifan[1];
1243 wpa_printf(MSG_DEBUG,
1244 "Michael MIC failure wireless event: "
1245 "keyix=%u src_addr=" MACSTR, mic->iev_keyix,
1246 MAC2STR(mic->iev_src));
1247
1248 os_memset(&event, 0, sizeof(event));
1249 event.michael_mic_failure.unicast =
1250 !IEEE80211_IS_MULTICAST(mic->iev_dst);
1251 wpa_supplicant_event(ctx, EVENT_MICHAEL_MIC_FAILURE,
1252 &event);
1253 break;
1254 }
1255 break;
1256 case RTM_IFINFO:
1257 ifm = (struct if_msghdr *) rtm;
1258 if (ifm->ifm_index != drv->ifindex)
1259 break;
1260 if ((rtm->rtm_flags & RTF_UP) == 0) {
1261 strlcpy(event.interface_status.ifname, drv->ifname,
1262 sizeof(event.interface_status.ifname));
1263 event.interface_status.ievent = EVENT_INTERFACE_REMOVED;
1264 wpa_printf(MSG_DEBUG, "RTM_IFINFO: Interface '%s' DOWN",
1265 event.interface_status.ifname);
1266 wpa_supplicant_event(ctx, EVENT_INTERFACE_STATUS, &event);
1267 }
1268 break;
1269 }
1270 }
1271
1272 static void
1273 wpa_driver_bsd_add_scan_entry(struct wpa_scan_results *res,
1274 struct ieee80211req_scan_result *sr)
1275 {
1276 struct wpa_scan_res *result, **tmp;
1277 size_t extra_len;
1278 u8 *pos;
1279
1280 extra_len = 2 + sr->isr_ssid_len;
1281 extra_len += 2 + sr->isr_nrates;
1282 extra_len += 3; /* ERP IE */
1283 extra_len += sr->isr_ie_len;
1284
1285 result = os_zalloc(sizeof(*result) + extra_len);
1286 if (result == NULL)
1287 return;
1288 os_memcpy(result->bssid, sr->isr_bssid, ETH_ALEN);
1289 result->freq = sr->isr_freq;
1290 result->beacon_int = sr->isr_intval;
1291 result->caps = sr->isr_capinfo;
1292 result->qual = sr->isr_rssi;
1293 result->noise = sr->isr_noise;
1294
1295 pos = (u8 *)(result + 1);
1296
1297 *pos++ = WLAN_EID_SSID;
1298 *pos++ = sr->isr_ssid_len;
1299 os_memcpy(pos, sr + 1, sr->isr_ssid_len);
1300 pos += sr->isr_ssid_len;
1301
1302 /*
1303 * Deal all rates as supported rate.
1304 * Because net80211 doesn't report extended supported rate or not.
1305 */
1306 *pos++ = WLAN_EID_SUPP_RATES;
1307 *pos++ = sr->isr_nrates;
1308 os_memcpy(pos, sr->isr_rates, sr->isr_nrates);
1309 pos += sr->isr_nrates;
1310
1311 *pos++ = WLAN_EID_ERP_INFO;
1312 *pos++ = 1;
1313 *pos++ = sr->isr_erp;
1314
1315 os_memcpy(pos, (u8 *)(sr + 1) + sr->isr_ssid_len, sr->isr_ie_len);
1316 pos += sr->isr_ie_len;
1317
1318 result->ie_len = pos - (u8 *)(result + 1);
1319
1320 tmp = os_realloc(res->res,
1321 (res->num + 1) * sizeof(struct wpa_scan_res *));
1322 if (tmp == NULL) {
1323 os_free(result);
1324 return;
1325 }
1326 tmp[res->num++] = result;
1327 res->res = tmp;
1328 }
1329
1330 struct wpa_scan_results *
1331 wpa_driver_bsd_get_scan_results2(void *priv)
1332 {
1333 struct ieee80211req_scan_result *sr;
1334 struct wpa_scan_results *res;
1335 int len, rest;
1336 uint8_t buf[24*1024], *pos;
1337
1338 len = get80211var(priv, IEEE80211_IOC_SCAN_RESULTS, buf, 24*1024);
1339 if (len < 0)
1340 return NULL;
1341
1342 res = os_zalloc(sizeof(*res));
1343 if (res == NULL)
1344 return NULL;
1345
1346 pos = buf;
1347 rest = len;
1348 while (rest >= sizeof(struct ieee80211req_scan_result)) {
1349 sr = (struct ieee80211req_scan_result *)pos;
1350 wpa_driver_bsd_add_scan_entry(res, sr);
1351 pos += sr->isr_len;
1352 rest -= sr->isr_len;
1353 }
1354
1355 wpa_printf(MSG_DEBUG, "Received %d bytes of scan results (%lu BSSes)",
1356 len, (unsigned long)res->num);
1357
1358 return res;
1359 }
1360
1361 static int wpa_driver_bsd_capa(struct bsd_driver_data *drv)
1362 {
1363 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */
1364 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
1365 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
1366 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
1367 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
1368 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 |
1369 WPA_DRIVER_CAPA_ENC_WEP104 |
1370 WPA_DRIVER_CAPA_ENC_TKIP |
1371 WPA_DRIVER_CAPA_ENC_CCMP;
1372 drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
1373 WPA_DRIVER_AUTH_SHARED |
1374 WPA_DRIVER_AUTH_LEAP;
1375 #ifdef IEEE80211_IOC_SCAN_MAX_SSID
1376 drv->capa.max_scan_ssids = IEEE80211_IOC_SCAN_MAX_SSID;
1377 #endif /* IEEE80211_IOC_SCAN_MAX_SSID */
1378 drv->capa.flags |= WPA_DRIVER_FLAGS_AP;
1379
1380 return 0;
1381 }
1382
1383 static void *
1384 wpa_driver_bsd_init(void *ctx, const char *ifname)
1385 {
1386 #define GETPARAM(drv, param, v) \
1387 (((v) = get80211param(drv, param)) != -1)
1388 struct bsd_driver_data *drv;
1389
1390 drv = os_zalloc(sizeof(*drv));
1391 if (drv == NULL)
1392 return NULL;
1393 /*
1394 * NB: We require the interface name be mappable to an index.
1395 * This implies we do not support having wpa_supplicant
1396 * wait for an interface to appear. This seems ok; that
1397 * doesn't belong here; it's really the job of devd.
1398 */
1399 drv->ifindex = if_nametoindex(ifname);
1400 if (drv->ifindex == 0) {
1401 wpa_printf(MSG_DEBUG, "%s: interface %s does not exist",
1402 __func__, ifname);
1403 goto fail1;
1404 }
1405 drv->sock = socket(PF_INET, SOCK_DGRAM, 0);
1406 if (drv->sock < 0)
1407 goto fail1;
1408 drv->route = socket(PF_ROUTE, SOCK_RAW, 0);
1409 if (drv->route < 0)
1410 goto fail;
1411 eloop_register_read_sock(drv->route,
1412 wpa_driver_bsd_event_receive, ctx, drv);
1413
1414 drv->ctx = ctx;
1415 os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
1416
1417 /* Down interface during setup. */
1418 if (bsd_ctrl_iface(drv, 0) < 0)
1419 goto fail;
1420
1421 if (!GETPARAM(drv, IEEE80211_IOC_ROAMING, drv->prev_roaming)) {
1422 wpa_printf(MSG_DEBUG, "%s: failed to get roaming state: %s",
1423 __func__, strerror(errno));
1424 goto fail;
1425 }
1426 if (!GETPARAM(drv, IEEE80211_IOC_PRIVACY, drv->prev_privacy)) {
1427 wpa_printf(MSG_DEBUG, "%s: failed to get privacy state: %s",
1428 __func__, strerror(errno));
1429 goto fail;
1430 }
1431 if (!GETPARAM(drv, IEEE80211_IOC_WPA, drv->prev_wpa)) {
1432 wpa_printf(MSG_DEBUG, "%s: failed to get wpa state: %s",
1433 __func__, strerror(errno));
1434 goto fail;
1435 }
1436
1437 if (wpa_driver_bsd_capa(drv))
1438 goto fail;
1439
1440 return drv;
1441 fail:
1442 close(drv->sock);
1443 fail1:
1444 os_free(drv);
1445 return NULL;
1446 #undef GETPARAM
1447 }
1448
1449 static void
1450 wpa_driver_bsd_deinit(void *priv)
1451 {
1452 struct bsd_driver_data *drv = priv;
1453
1454 wpa_driver_bsd_set_wpa(drv, 0);
1455 eloop_unregister_read_sock(drv->route);
1456
1457 /* NB: mark interface down */
1458 bsd_ctrl_iface(drv, 0);
1459
1460 wpa_driver_bsd_set_wpa_internal(drv, drv->prev_wpa, drv->prev_privacy);
1461 if (set80211param(drv, IEEE80211_IOC_ROAMING, drv->prev_roaming) < 0)
1462 wpa_printf(MSG_DEBUG, "%s: failed to restore roaming state",
1463 __func__);
1464
1465 if (drv->sock_xmit != NULL)
1466 l2_packet_deinit(drv->sock_xmit);
1467 (void) close(drv->route); /* ioctl socket */
1468 (void) close(drv->sock); /* event socket */
1469 os_free(drv);
1470 }
1471
1472 static int
1473 wpa_driver_bsd_get_capa(void *priv, struct wpa_driver_capa *capa)
1474 {
1475 struct bsd_driver_data *drv = priv;
1476
1477 os_memcpy(capa, &drv->capa, sizeof(*capa));
1478 return 0;
1479 }
1480 #endif /* HOSTAPD */
1481
1482
1483 const struct wpa_driver_ops wpa_driver_bsd_ops = {
1484 .name = "bsd",
1485 .desc = "BSD 802.11 support",
1486 #ifdef HOSTAPD
1487 .hapd_init = bsd_init,
1488 .hapd_deinit = bsd_deinit,
1489 .set_privacy = bsd_set_privacy,
1490 .get_seqnum = bsd_get_seqnum,
1491 .flush = bsd_flush,
1492 .read_sta_data = bsd_read_sta_driver_data,
1493 .sta_disassoc = bsd_sta_disassoc,
1494 .sta_deauth = bsd_sta_deauth,
1495 .set_freq = hostapd_bsd_set_freq,
1496 #else /* HOSTAPD */
1497 .init = wpa_driver_bsd_init,
1498 .deinit = wpa_driver_bsd_deinit,
1499 .get_bssid = wpa_driver_bsd_get_bssid,
1500 .get_ssid = wpa_driver_bsd_get_ssid,
1501 .set_countermeasures = wpa_driver_bsd_set_countermeasures,
1502 .scan2 = wpa_driver_bsd_scan,
1503 .get_scan_results2 = wpa_driver_bsd_get_scan_results2,
1504 .deauthenticate = wpa_driver_bsd_deauthenticate,
1505 .disassociate = wpa_driver_bsd_disassociate,
1506 .associate = wpa_driver_bsd_associate,
1507 .get_capa = wpa_driver_bsd_get_capa,
1508 #endif /* HOSTAPD */
1509 .set_key = bsd_set_key,
1510 .set_ieee8021x = bsd_set_ieee8021x,
1511 .hapd_set_ssid = bsd_set_ssid,
1512 .hapd_get_ssid = bsd_get_ssid,
1513 .hapd_send_eapol = bsd_send_eapol,
1514 .sta_set_flags = bsd_set_sta_authorized,
1515 .set_generic_elem = bsd_set_opt_ie,
1516 };
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