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