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Comment out unused functions if IEEE8021X_EAPOL is not defined
[thirdparty/hostap.git] / src / drivers / driver_bsd.c
CommitLineData
6fc6879b
JM		 1/*
2 * WPA Supplicant - driver interaction with BSD net80211 layer
3 * Copyright (c) 2004, Sam Leffler <sam@errno.com>
c5121837 4 * Copyright (c) 2004, 2Wire, Inc
6fc6879b
JM		 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 "ieee802_11_defs.h"
23
24#include <net/if.h>
898d6921
JR		 25
26#ifdef __NetBSD__
27#include <net/if_ether.h>
28#define COMPAT_FREEBSD_NET80211
29#else
6fc6879b 30#include <net/ethernet.h>
898d6921 31#endif
131289d8 32#include <net/route.h>
6fc6879b
JM		 33
34#include <net80211/ieee80211.h>
35#include <net80211/ieee80211_crypto.h>
36#include <net80211/ieee80211_ioctl.h>
131289d8
MH		 37#if __FreeBSD__
38#include <net80211/ieee80211_freebsd.h>
39#endif
40#if __NetBSD__
41#include <net80211/ieee80211_netbsd.h>
42#endif
43
44#ifdef HOSTAPD
6fc6879b 45
c5121837
JM		 46/*
47 * Avoid conflicts with hostapd definitions by undefining couple of defines
48 * from net80211 header files.
49 */
50#undef RSN_VERSION
51#undef WPA_VERSION
52#undef WPA_OUI_TYPE
53
c5121837
JM		 54#include "l2_packet/l2_packet.h"
55#include "../../hostapd/hostapd.h"
56#include "../../hostapd/config.h"
57#include "../../hostapd/eapol_sm.h"
131289d8 58#include "../../hostapd/sta_flags.h"
c5121837
JM		 59
60struct bsd_driver_data {
61 struct hostapd_data *hapd; /* back pointer */
62
63 char iface[IFNAMSIZ + 1];
64 struct l2_packet_data *sock_xmit; /* raw packet xmit socket */
65 int ioctl_sock; /* socket for ioctl() use */
66 int wext_sock; /* socket for wireless events */
67};
68
731723a5
JM		 69static int bsd_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
70 int reason_code);
c5121837
JM		 71
72static int
73set80211var(struct bsd_driver_data *drv, int op, const void *arg, int arg_len)
74{
75 struct ieee80211req ireq;
76
77 memset(&ireq, 0, sizeof(ireq));
78 os_strlcpy(ireq.i_name, drv->iface, IFNAMSIZ);
79 ireq.i_type = op;
80 ireq.i_len = arg_len;
81 ireq.i_data = (void *) arg;
82
83 if (ioctl(drv->ioctl_sock, SIOCS80211, &ireq) < 0) {
84 perror("ioctl[SIOCS80211]");
85 return -1;
86 }
87 return 0;
88}
89
90static int
91get80211var(struct bsd_driver_data *drv, int op, void *arg, int arg_len)
92{
93 struct ieee80211req ireq;
94
95 memset(&ireq, 0, sizeof(ireq));
96 os_strlcpy(ireq.i_name, drv->iface, IFNAMSIZ);
97 ireq.i_type = op;
98 ireq.i_len = arg_len;
99 ireq.i_data = arg;
100
101 if (ioctl(drv->ioctl_sock, SIOCG80211, &ireq) < 0) {
102 perror("ioctl[SIOCG80211]");
103 return -1;
104 }
105 return ireq.i_len;
106}
107
108static int
109set80211param(struct bsd_driver_data *drv, int op, int arg)
110{
111 struct ieee80211req ireq;
112
113 memset(&ireq, 0, sizeof(ireq));
114 os_strlcpy(ireq.i_name, drv->iface, IFNAMSIZ);
115 ireq.i_type = op;
116 ireq.i_val = arg;
117
118 if (ioctl(drv->ioctl_sock, SIOCS80211, &ireq) < 0) {
119 perror("ioctl[SIOCS80211]");
120 return -1;
121 }
122 return 0;
123}
124
125static const char *
126ether_sprintf(const u8 *addr)
127{
128 static char buf[sizeof(MACSTR)];
129
130 if (addr != NULL)
131 snprintf(buf, sizeof(buf), MACSTR, MAC2STR(addr));
132 else
133 snprintf(buf, sizeof(buf), MACSTR, 0,0,0,0,0,0);
134 return buf;
135}
136
137/*
138 * Configure WPA parameters.
139 */
140static int
141bsd_configure_wpa(struct bsd_driver_data *drv)
142{
143 static const char *ciphernames[] =
144 { "WEP", "TKIP", "AES-OCB", "AES-CCM", "CKIP", "NONE" };
145 struct hostapd_data *hapd = drv->hapd;
146 struct hostapd_bss_config *conf = hapd->conf;
147 int v;
148
149 switch (conf->wpa_group) {
150 case WPA_CIPHER_CCMP:
151 v = IEEE80211_CIPHER_AES_CCM;
152 break;
153 case WPA_CIPHER_TKIP:
154 v = IEEE80211_CIPHER_TKIP;
155 break;
156 case WPA_CIPHER_WEP104:
157 v = IEEE80211_CIPHER_WEP;
158 break;
159 case WPA_CIPHER_WEP40:
160 v = IEEE80211_CIPHER_WEP;
161 break;
162 case WPA_CIPHER_NONE:
163 v = IEEE80211_CIPHER_NONE;
164 break;
165 default:
166 printf("Unknown group key cipher %u\n",
167 conf->wpa_group);
168 return -1;
169 }
170 wpa_printf(MSG_DEBUG, "%s: group key cipher=%s (%u)",
171 __func__, ciphernames[v], v);
172 if (set80211param(drv, IEEE80211_IOC_MCASTCIPHER, v)) {
173 printf("Unable to set group key cipher to %u (%s)\n",
174 v, ciphernames[v]);
175 return -1;
176 }
177 if (v == IEEE80211_CIPHER_WEP) {
178 /* key length is done only for specific ciphers */
179 v = (conf->wpa_group == WPA_CIPHER_WEP104 ? 13 : 5);
180 if (set80211param(drv, IEEE80211_IOC_MCASTKEYLEN, v)) {
181 printf("Unable to set group key length to %u\n", v);
182 return -1;
183 }
184 }
185
186 v = 0;
187 if (conf->wpa_pairwise & WPA_CIPHER_CCMP)
188 v |= 1<<IEEE80211_CIPHER_AES_CCM;
189 if (conf->wpa_pairwise & WPA_CIPHER_TKIP)
190 v |= 1<<IEEE80211_CIPHER_TKIP;
191 if (conf->wpa_pairwise & WPA_CIPHER_NONE)
192 v |= 1<<IEEE80211_CIPHER_NONE;
193 wpa_printf(MSG_DEBUG, "%s: pairwise key ciphers=0x%x", __func__, v);
194 if (set80211param(drv, IEEE80211_IOC_UCASTCIPHERS, v)) {
195 printf("Unable to set pairwise key ciphers to 0x%x\n", v);
196 return -1;
197 }
198
199 wpa_printf(MSG_DEBUG, "%s: key management algorithms=0x%x",
200 __func__, conf->wpa_key_mgmt);
201 if (set80211param(drv, IEEE80211_IOC_KEYMGTALGS, conf->wpa_key_mgmt)) {
202 printf("Unable to set key management algorithms to 0x%x\n",
203 conf->wpa_key_mgmt);
204 return -1;
205 }
206
207 v = 0;
208 if (conf->rsn_preauth)
209 v |= BIT(0);
210 wpa_printf(MSG_DEBUG, "%s: rsn capabilities=0x%x",
211 __func__, conf->rsn_preauth);
212 if (set80211param(drv, IEEE80211_IOC_RSNCAPS, v)) {
213 printf("Unable to set RSN capabilities to 0x%x\n", v);
214 return -1;
215 }
216
217 wpa_printf(MSG_DEBUG, "%s: enable WPA= 0x%x", __func__, conf->wpa);
218 if (set80211param(drv, IEEE80211_IOC_WPA, conf->wpa)) {
219 printf("Unable to set WPA to %u\n", conf->wpa);
220 return -1;
221 }
222 return 0;
223}
224
225
226static int
227bsd_set_iface_flags(void *priv, int dev_up)
228{
229 struct bsd_driver_data *drv = priv;
230 struct ifreq ifr;
231
232 wpa_printf(MSG_DEBUG, "%s: dev_up=%d", __func__, dev_up);
233
234 if (drv->ioctl_sock < 0)
235 return -1;
236
237 memset(&ifr, 0, sizeof(ifr));
238 os_strlcpy(ifr.ifr_name, drv->iface, IFNAMSIZ);
239
240 if (ioctl(drv->ioctl_sock, SIOCGIFFLAGS, &ifr) != 0) {
241 perror("ioctl[SIOCGIFFLAGS]");
242 return -1;
243 }
244
245 if (dev_up)
246 ifr.ifr_flags |= IFF_UP;
247 else
248 ifr.ifr_flags &= ~IFF_UP;
249
250 if (ioctl(drv->ioctl_sock, SIOCSIFFLAGS, &ifr) != 0) {
251 perror("ioctl[SIOCSIFFLAGS]");
252 return -1;
253 }
254
255 if (dev_up) {
256 memset(&ifr, 0, sizeof(ifr));
257 os_strlcpy(ifr.ifr_name, drv->iface, IFNAMSIZ);
258 ifr.ifr_mtu = HOSTAPD_MTU;
259 if (ioctl(drv->ioctl_sock, SIOCSIFMTU, &ifr) != 0) {
260 perror("ioctl[SIOCSIFMTU]");
261 printf("Setting MTU failed - trying to survive with "
262 "current value\n");
263 }
264 }
265
266 return 0;
267}
268
269static int
270bsd_set_ieee8021x(const char *ifname, void *priv, int enabled)
271{
272 struct bsd_driver_data *drv = priv;
273 struct hostapd_data *hapd = drv->hapd;
274 struct hostapd_bss_config *conf = hapd->conf;
275
276 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
277
278 if (!enabled) {
279 /* XXX restore state */
280 return set80211param(priv, IEEE80211_IOC_AUTHMODE,
281 IEEE80211_AUTH_AUTO);
282 }
283 if (!conf->wpa && !conf->ieee802_1x) {
284 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_DRIVER,
285 HOSTAPD_LEVEL_WARNING, "No 802.1X or WPA enabled!");
286 return -1;
287 }
288 if (conf->wpa && bsd_configure_wpa(drv) != 0) {
289 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_DRIVER,
290 HOSTAPD_LEVEL_WARNING, "Error configuring WPA state!");
291 return -1;
292 }
293 if (set80211param(priv, IEEE80211_IOC_AUTHMODE,
294 (conf->wpa ? IEEE80211_AUTH_WPA : IEEE80211_AUTH_8021X))) {
295 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_DRIVER,
296 HOSTAPD_LEVEL_WARNING, "Error enabling WPA/802.1X!");
297 return -1;
298 }
299 return bsd_set_iface_flags(priv, 1);
300}
301
302static int
303bsd_set_privacy(const char *ifname, void *priv, int enabled)
304{
305 struct bsd_driver_data *drv = priv;
306
307 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
308
309 return set80211param(drv, IEEE80211_IOC_PRIVACY, enabled);
310}
311
312static int
313bsd_set_sta_authorized(void *priv, const u8 *addr, int authorized)
314{
315 struct bsd_driver_data *drv = priv;
316 struct ieee80211req_mlme mlme;
317
318 wpa_printf(MSG_DEBUG, "%s: addr=%s authorized=%d",
319 __func__, ether_sprintf(addr), authorized);
320
321 if (authorized)
322 mlme.im_op = IEEE80211_MLME_AUTHORIZE;
323 else
324 mlme.im_op = IEEE80211_MLME_UNAUTHORIZE;
325 mlme.im_reason = 0;
326 memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
327 return set80211var(drv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme));
328}
329
330static int
331bsd_sta_set_flags(void *priv, const u8 *addr, int total_flags, int flags_or,
332 int flags_and)
333{
334 /* For now, only support setting Authorized flag */
335 if (flags_or & WLAN_STA_AUTHORIZED)
336 return bsd_set_sta_authorized(priv, addr, 1);
337 if (!(flags_and & WLAN_STA_AUTHORIZED))
338 return bsd_set_sta_authorized(priv, addr, 0);
339 return 0;
340}
341
342static int
343bsd_del_key(void *priv, const u8 *addr, int key_idx)
344{
345 struct bsd_driver_data *drv = priv;
346 struct ieee80211req_del_key wk;
347
348 wpa_printf(MSG_DEBUG, "%s: addr=%s key_idx=%d",
349 __func__, ether_sprintf(addr), key_idx);
350
351 memset(&wk, 0, sizeof(wk));
352 if (addr != NULL) {
353 memcpy(wk.idk_macaddr, addr, IEEE80211_ADDR_LEN);
354 wk.idk_keyix = (u_int8_t) IEEE80211_KEYIX_NONE; /* XXX */
355 } else {
356 wk.idk_keyix = key_idx;
357 }
358
359 return set80211var(drv, IEEE80211_IOC_DELKEY, &wk, sizeof(wk));
360}
361
362static int
363bsd_set_key(const char *ifname, void *priv, wpa_alg alg,
364 const u8 *addr, int key_idx, int set_tx, const u8 *seq,
365 size_t seq_len, const u8 *key, size_t key_len)
366{
367 struct bsd_driver_data *drv = priv;
368 struct ieee80211req_key wk;
369 u_int8_t cipher;
370
371 if (alg == WPA_ALG_NONE)
372 return bsd_del_key(drv, addr, key_idx);
373
374 wpa_printf(MSG_DEBUG, "%s: alg=%d addr=%s key_idx=%d",
375 __func__, alg, ether_sprintf(addr), key_idx);
376
377 if (alg == WPA_ALG_WEP)
378 cipher = IEEE80211_CIPHER_WEP;
379 else if (alg == WPA_ALG_TKIP)
380 cipher = IEEE80211_CIPHER_TKIP;
381 else if (alg == WPA_ALG_CCMP)
382 cipher = IEEE80211_CIPHER_AES_CCM;
383 else {
384 printf("%s: unknown/unsupported algorithm %d\n",
385 __func__, alg);
386 return -1;
387 }
388
389 if (key_len > sizeof(wk.ik_keydata)) {
92e63aaf 390 printf("%s: key length %d too big\n", __func__, (int) key_len);
c5121837
JM		 391 return -3;
392 }
393
394 memset(&wk, 0, sizeof(wk));
395 wk.ik_type = cipher;
396 wk.ik_flags = IEEE80211_KEY_RECV | IEEE80211_KEY_XMIT;
397 if (addr == NULL) {
398 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
399 wk.ik_keyix = key_idx;
400 wk.ik_flags |= IEEE80211_KEY_DEFAULT;
401 } else {
402 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
403 wk.ik_keyix = IEEE80211_KEYIX_NONE;
404 }
405 wk.ik_keylen = key_len;
406 memcpy(wk.ik_keydata, key, key_len);
407
408 return set80211var(drv, IEEE80211_IOC_WPAKEY, &wk, sizeof(wk));
409}
410
411
412static int
413bsd_get_seqnum(const char *ifname, void *priv, const u8 *addr, int idx,
414 u8 *seq)
415{
416 struct bsd_driver_data *drv = priv;
417 struct ieee80211req_key wk;
418
419 wpa_printf(MSG_DEBUG, "%s: addr=%s idx=%d",
420 __func__, ether_sprintf(addr), idx);
421
422 memset(&wk, 0, sizeof(wk));
423 if (addr == NULL)
424 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
425 else
426 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
427 wk.ik_keyix = idx;
428
429 if (get80211var(drv, IEEE80211_IOC_WPAKEY, &wk, sizeof(wk)) < 0) {
430 printf("Failed to get encryption.\n");
431 return -1;
432 }
433
434#ifdef WORDS_BIGENDIAN
435 {
436 /*
437 * wk.ik_keytsc is in host byte order (big endian), need to
438 * swap it to match with the byte order used in WPA.
439 */
440 int i;
441 u8 tmp[WPA_KEY_RSC_LEN];
442 memcpy(tmp, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
443 for (i = 0; i < WPA_KEY_RSC_LEN; i++) {
444 seq[i] = tmp[WPA_KEY_RSC_LEN - i - 1];
445 }
446 }
447#else /* WORDS_BIGENDIAN */
448 memcpy(seq, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
449#endif /* WORDS_BIGENDIAN */
450 return 0;
451}
452
453
454static int
455bsd_flush(void *priv)
456{
457 u8 allsta[IEEE80211_ADDR_LEN];
458
459 memset(allsta, 0xff, IEEE80211_ADDR_LEN);
731723a5 460 return bsd_sta_deauth(priv, NULL, allsta, IEEE80211_REASON_AUTH_LEAVE);
c5121837
JM		 461}
462
463
464static int
465bsd_read_sta_driver_data(void *priv, struct hostap_sta_driver_data *data,
466 const u8 *addr)
467{
468 struct bsd_driver_data *drv = priv;
469 struct ieee80211req_sta_stats stats;
470
471 memcpy(stats.is_u.macaddr, addr, IEEE80211_ADDR_LEN);
472 if (get80211var(drv, IEEE80211_IOC_STA_STATS, &stats, sizeof(stats)) > 0) {
473 /* XXX? do packets counts include non-data frames? */
474 data->rx_packets = stats.is_stats.ns_rx_data;
475 data->rx_bytes = stats.is_stats.ns_rx_bytes;
476 data->tx_packets = stats.is_stats.ns_tx_data;
477 data->tx_bytes = stats.is_stats.ns_tx_bytes;
478 }
479 return 0;
480}
481
482static int
483bsd_set_opt_ie(const char *ifname, void *priv, const u8 *ie, size_t ie_len)
484{
485 /*
486 * Do nothing; we setup parameters at startup that define the
487 * contents of the beacon information element.
488 */
489 return 0;
490}
491
492static int
731723a5 493bsd_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, int reason_code)
c5121837
JM		 494{
495 struct bsd_driver_data *drv = priv;
496 struct ieee80211req_mlme mlme;
497
498 wpa_printf(MSG_DEBUG, "%s: addr=%s reason_code=%d",
499 __func__, ether_sprintf(addr), reason_code);
500
501 mlme.im_op = IEEE80211_MLME_DEAUTH;
502 mlme.im_reason = reason_code;
503 memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
504 return set80211var(drv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme));
505}
506
507static int
731723a5
JM		 508bsd_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
509 int reason_code)
c5121837
JM		 510{
511 struct bsd_driver_data *drv = priv;
512 struct ieee80211req_mlme mlme;
513
514 wpa_printf(MSG_DEBUG, "%s: addr=%s reason_code=%d",
515 __func__, ether_sprintf(addr), reason_code);
516
517 mlme.im_op = IEEE80211_MLME_DISASSOC;
518 mlme.im_reason = reason_code;
519 memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
520 return set80211var(drv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme));
521}
522
523static int
524bsd_new_sta(struct bsd_driver_data *drv, u8 addr[IEEE80211_ADDR_LEN])
525{
526 struct hostapd_data *hapd = drv->hapd;
527 struct ieee80211req_wpaie ie;
528 int ielen = 0;
529 u8 *iebuf = NULL;
530
531 /*
532 * Fetch and validate any negotiated WPA/RSN parameters.
533 */
534 memset(&ie, 0, sizeof(ie));
535 memcpy(ie.wpa_macaddr, addr, IEEE80211_ADDR_LEN);
536 if (get80211var(drv, IEEE80211_IOC_WPAIE, &ie, sizeof(ie)) < 0) {
537 printf("Failed to get WPA/RSN information element.\n");
538 goto no_ie;
539 }
540 iebuf = ie.wpa_ie;
541 ielen = ie.wpa_ie[1];
542 if (ielen == 0)
543 iebuf = NULL;
544 else
545 ielen += 2;
546
547no_ie:
548 return hostapd_notif_assoc(hapd, addr, iebuf, ielen);
549}
550
c5121837
JM		 551static void
552bsd_wireless_event_receive(int sock, void *ctx, void *sock_ctx)
553{
554 struct bsd_driver_data *drv = ctx;
555 struct hostapd_data *hapd = drv->hapd;
556 char buf[2048];
557 struct if_announcemsghdr *ifan;
558 struct rt_msghdr *rtm;
559 struct ieee80211_michael_event *mic;
560 struct ieee80211_join_event *join;
561 struct ieee80211_leave_event *leave;
562 int n;
563
564 n = read(sock, buf, sizeof(buf));
565 if (n < 0) {
566 if (errno != EINTR && errno != EAGAIN)
567 perror("read(PF_ROUTE)");
568 return;
569 }
570
571 rtm = (struct rt_msghdr *) buf;
572 if (rtm->rtm_version != RTM_VERSION) {
573 wpa_printf(MSG_DEBUG, "Routing message version %d not "
574 "understood\n", rtm->rtm_version);
575 return;
576 }
577 ifan = (struct if_announcemsghdr *) rtm;
578 switch (rtm->rtm_type) {
579 case RTM_IEEE80211:
580 switch (ifan->ifan_what) {
581 case RTM_IEEE80211_ASSOC:
582 case RTM_IEEE80211_REASSOC:
583 case RTM_IEEE80211_DISASSOC:
584 case RTM_IEEE80211_SCAN:
585 break;
586 case RTM_IEEE80211_LEAVE:
587 leave = (struct ieee80211_leave_event *) &ifan[1];
588 hostapd_notif_disassoc(drv->hapd, leave->iev_addr);
589 break;
590 case RTM_IEEE80211_JOIN:
591#ifdef RTM_IEEE80211_REJOIN
592 case RTM_IEEE80211_REJOIN:
593#endif
594 join = (struct ieee80211_join_event *) &ifan[1];
595 bsd_new_sta(drv, join->iev_addr);
596 break;
597 case RTM_IEEE80211_REPLAY:
598 /* ignore */
599 break;
600 case RTM_IEEE80211_MICHAEL:
601 mic = (struct ieee80211_michael_event *) &ifan[1];
602 wpa_printf(MSG_DEBUG,
603 "Michael MIC failure wireless event: "
604 "keyix=%u src_addr=" MACSTR, mic->iev_keyix,
605 MAC2STR(mic->iev_src));
606 hostapd_michael_mic_failure(hapd, mic->iev_src);
607 break;
608 }
609 break;
610 }
611}
612
613static int
614bsd_wireless_event_init(struct bsd_driver_data *drv)
615{
616 int s;
617
618 drv->wext_sock = -1;
619
620 s = socket(PF_ROUTE, SOCK_RAW, 0);
621 if (s < 0) {
622 perror("socket(PF_ROUTE,SOCK_RAW)");
623 return -1;
624 }
625 eloop_register_read_sock(s, bsd_wireless_event_receive, drv, NULL);
626 drv->wext_sock = s;
627
628 return 0;
629}
630
631static void
632bsd_wireless_event_deinit(struct bsd_driver_data *drv)
633{
634 if (drv->wext_sock < 0)
635 return;
636 eloop_unregister_read_sock(drv->wext_sock);
637 close(drv->wext_sock);
638}
639
640
641static int
642bsd_send_eapol(void *priv, const u8 *addr, const u8 *data, size_t data_len,
643 int encrypt, const u8 *own_addr)
644{
645 struct bsd_driver_data *drv = priv;
646 unsigned char buf[3000];
647 unsigned char *bp = buf;
648 struct l2_ethhdr *eth;
649 size_t len;
650 int status;
651
652 /*
653 * Prepend the Etherent header. If the caller left us
654 * space at the front we could just insert it but since
655 * we don't know we copy to a local buffer. Given the frequency
656 * and size of frames this probably doesn't matter.
657 */
658 len = data_len + sizeof(struct l2_ethhdr);
659 if (len > sizeof(buf)) {
660 bp = malloc(len);
661 if (bp == NULL) {
662 printf("EAPOL frame discarded, cannot malloc temp "
92e63aaf 663 "buffer of size %u!\n", (unsigned int) len);
c5121837
JM		 664 return -1;
665 }
666 }
667 eth = (struct l2_ethhdr *) bp;
668 memcpy(eth->h_dest, addr, ETH_ALEN);
669 memcpy(eth->h_source, own_addr, ETH_ALEN);
670 eth->h_proto = htons(ETH_P_EAPOL);
671 memcpy(eth+1, data, data_len);
672
673 wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", bp, len);
674
675 status = l2_packet_send(drv->sock_xmit, addr, ETH_P_EAPOL, bp, len);
676
677 if (bp != buf)
678 free(bp);
679 return status;
680}
681
682static void
683handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
684{
685 struct bsd_driver_data *drv = ctx;
686 hostapd_eapol_receive(drv->hapd, src_addr,
687 buf + sizeof(struct l2_ethhdr),
688 len - sizeof(struct l2_ethhdr));
689}
690
691static int
692bsd_get_ssid(const char *ifname, void *priv, u8 *buf, int len)
693{
694 struct bsd_driver_data *drv = priv;
695 int ssid_len = get80211var(drv, IEEE80211_IOC_SSID, buf, len);
696
697 wpa_printf(MSG_DEBUG, "%s: ssid=\"%.*s\"", __func__, ssid_len, buf);
698
699 return ssid_len;
700}
701
702static int
703bsd_set_ssid(const char *ifname, void *priv, const u8 *buf, int len)
704{
705 struct bsd_driver_data *drv = priv;
706
707 wpa_printf(MSG_DEBUG, "%s: ssid=\"%.*s\"", __func__, len, buf);
708
709 return set80211var(drv, IEEE80211_IOC_SSID, buf, len);
710}
711
712static void *
92f475b4 713bsd_init(struct hostapd_data *hapd, struct wpa_init_params *params)
c5121837
JM		 714{
715 struct bsd_driver_data *drv;
716
717 drv = os_zalloc(sizeof(struct bsd_driver_data));
718 if (drv == NULL) {
719 printf("Could not allocate memory for bsd driver data\n");
720 goto bad;
721 }
722
723 drv->hapd = hapd;
724 drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
725 if (drv->ioctl_sock < 0) {
726 perror("socket[PF_INET,SOCK_DGRAM]");
727 goto bad;
728 }
412036f5 729 memcpy(drv->iface, params->ifname, sizeof(drv->iface));
c5121837
JM		 730
731 drv->sock_xmit = l2_packet_init(drv->iface, NULL, ETH_P_EAPOL,
732 handle_read, drv, 1);
733 if (drv->sock_xmit == NULL)
734 goto bad;
412036f5 735 if (l2_packet_get_own_addr(drv->sock_xmit, params->own_addr))
c5121837
JM		 736 goto bad;
737
738 bsd_set_iface_flags(drv, 0); /* mark down during setup */
739 if (bsd_wireless_event_init(drv))
740 goto bad;
741
742 return drv;
743bad:
744 if (drv->sock_xmit != NULL)
745 l2_packet_deinit(drv->sock_xmit);
746 if (drv->ioctl_sock >= 0)
747 close(drv->ioctl_sock);
748 if (drv != NULL)
749 free(drv);
750 return NULL;
751}
752
753
754static void
755bsd_deinit(void *priv)
756{
757 struct bsd_driver_data *drv = priv;
758
759 bsd_wireless_event_deinit(drv);
760 (void) bsd_set_iface_flags(drv, 0);
761 if (drv->ioctl_sock >= 0)
762 close(drv->ioctl_sock);
763 if (drv->sock_xmit != NULL)
764 l2_packet_deinit(drv->sock_xmit);
765 free(drv);
766}
767
768const struct wpa_driver_ops wpa_driver_bsd_ops = {
769 .name = "bsd",
770 .hapd_init = bsd_init,
771 .hapd_deinit = bsd_deinit,
772 .set_ieee8021x = bsd_set_ieee8021x,
773 .set_privacy = bsd_set_privacy,
774 .hapd_set_key = bsd_set_key,
775 .get_seqnum = bsd_get_seqnum,
776 .flush = bsd_flush,
777 .set_generic_elem = bsd_set_opt_ie,
778 .sta_set_flags = bsd_sta_set_flags,
779 .read_sta_data = bsd_read_sta_driver_data,
780 .hapd_send_eapol = bsd_send_eapol,
781 .sta_disassoc = bsd_sta_disassoc,
782 .sta_deauth = bsd_sta_deauth,
783 .hapd_set_ssid = bsd_set_ssid,
784 .hapd_get_ssid = bsd_get_ssid,
785};
786
787#else /* HOSTAPD */
788
6fc6879b
JM		 789struct wpa_driver_bsd_data {
790 int sock; /* open socket for 802.11 ioctls */
791 int route; /* routing socket for events */
792 char ifname[IFNAMSIZ+1]; /* interface name */
793 unsigned int ifindex; /* interface index */
794 void *ctx;
795 int prev_roaming; /* roaming state to restore on deinit */
796 int prev_privacy; /* privacy state to restore on deinit */
797 int prev_wpa; /* wpa state to restore on deinit */
798};
799
800static int
801set80211var(struct wpa_driver_bsd_data *drv, int op, const void *arg, int arg_len)
802{
803 struct ieee80211req ireq;
804
805 os_memset(&ireq, 0, sizeof(ireq));
806 os_strlcpy(ireq.i_name, drv->ifname, IFNAMSIZ);
807 ireq.i_type = op;
808 ireq.i_len = arg_len;
809 ireq.i_data = (void *) arg;
810
811 if (ioctl(drv->sock, SIOCS80211, &ireq) < 0) {
812 fprintf(stderr, "ioctl[SIOCS80211, op %u, len %u]: %s\n",
813 op, arg_len, strerror(errno));
814 return -1;
815 }
816 return 0;
817}
818
819static int
820get80211var(struct wpa_driver_bsd_data *drv, int op, void *arg, int arg_len)
821{
822 struct ieee80211req ireq;
823
824 os_memset(&ireq, 0, sizeof(ireq));
825 os_strlcpy(ireq.i_name, drv->ifname, IFNAMSIZ);
826 ireq.i_type = op;
827 ireq.i_len = arg_len;
828 ireq.i_data = arg;
829
830 if (ioctl(drv->sock, SIOCG80211, &ireq) < 0) {
831 fprintf(stderr, "ioctl[SIOCG80211, op %u, len %u]: %s\n",
832 op, arg_len, strerror(errno));
833 return -1;
834 }
835 return ireq.i_len;
836}
837
838static int
839set80211param(struct wpa_driver_bsd_data *drv, int op, int arg)
840{
841 struct ieee80211req ireq;
842
843 os_memset(&ireq, 0, sizeof(ireq));
844 os_strlcpy(ireq.i_name, drv->ifname, IFNAMSIZ);
845 ireq.i_type = op;
846 ireq.i_val = arg;
847
848 if (ioctl(drv->sock, SIOCS80211, &ireq) < 0) {
849 fprintf(stderr, "ioctl[SIOCS80211, op %u, arg 0x%x]: %s\n",
850 op, arg, strerror(errno));
851 return -1;
852 }
853 return 0;
854}
855
856static int
857get80211param(struct wpa_driver_bsd_data *drv, int op)
858{
859 struct ieee80211req ireq;
860
861 os_memset(&ireq, 0, sizeof(ireq));
862 os_strlcpy(ireq.i_name, drv->ifname, IFNAMSIZ);
863 ireq.i_type = op;
864
865 if (ioctl(drv->sock, SIOCG80211, &ireq) < 0) {
866 fprintf(stderr, "ioctl[SIOCG80211, op %u]: %s\n",
867 op, strerror(errno));
868 return -1;
869 }
870 return ireq.i_val;
871}
872
873static int
874getifflags(struct wpa_driver_bsd_data *drv, int *flags)
875{
876 struct ifreq ifr;
877
878 os_memset(&ifr, 0, sizeof(ifr));
879 os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
880 if (ioctl(drv->sock, SIOCGIFFLAGS, (caddr_t)&ifr) < 0) {
881 perror("SIOCGIFFLAGS");
882 return errno;
883 }
884 *flags = ifr.ifr_flags & 0xffff;
885 return 0;
886}
887
888static int
889setifflags(struct wpa_driver_bsd_data *drv, int flags)
890{
891 struct ifreq ifr;
892
893 os_memset(&ifr, 0, sizeof(ifr));
894 os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
895 ifr.ifr_flags = flags & 0xffff;
896 if (ioctl(drv->sock, SIOCSIFFLAGS, (caddr_t)&ifr) < 0) {
897 perror("SIOCSIFFLAGS");
898 return errno;
899 }
900 return 0;
901}
902
903static int
904wpa_driver_bsd_get_bssid(void *priv, u8 *bssid)
905{
906 struct wpa_driver_bsd_data *drv = priv;
a65f4a57
MH		 907#ifdef __NetBSD__
908 struct ieee80211_bssid bs;
6fc6879b 909
a65f4a57
MH		 910 os_strncpy(bs.i_name, drv->ifname, sizeof(bs.i_name));
911 if (ioctl(drv->sock, SIOCG80211BSSID, &bs) < 0)
912 return -1;
913 os_memcpy(bssid, bs.i_bssid, sizeof(bs.i_bssid));
914 return 0;
915#else
6fc6879b
JM		 916 return get80211var(drv, IEEE80211_IOC_BSSID,
917 bssid, IEEE80211_ADDR_LEN) < 0 ? -1 : 0;
a65f4a57 918#endif
6fc6879b
JM		 919}
920
921#if 0
922static int
923wpa_driver_bsd_set_bssid(void *priv, const char *bssid)
924{
925 struct wpa_driver_bsd_data *drv = priv;
926
927 return set80211var(drv, IEEE80211_IOC_BSSID,
928 bssid, IEEE80211_ADDR_LEN);
929}
930#endif
931
932static int
933wpa_driver_bsd_get_ssid(void *priv, u8 *ssid)
934{
935 struct wpa_driver_bsd_data *drv = priv;
a65f4a57
MH		 936#ifdef __NetBSD__
937 struct ieee80211_nwid nwid;
938 struct ifreq ifr;
6fc6879b 939
a65f4a57
MH		 940 os_memset(&ifr, 0, sizeof(ifr));
941 os_strncpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
942 ifr.ifr_data = (void *)&nwid;
943 if (ioctl(drv->sock, SIOCG80211NWID, &ifr) < 0 ||
944 nwid.i_len > IEEE80211_NWID_LEN)
945 return -1;
946 os_memcpy(ssid, nwid.i_nwid, nwid.i_len);
947 return nwid.i_len;
948#else
6fc6879b
JM		 949 return get80211var(drv, IEEE80211_IOC_SSID,
950 ssid, IEEE80211_NWID_LEN);
a65f4a57 951#endif
6fc6879b
JM		 952}
953
954static int
4df91b3f 955wpa_driver_bsd_set_ssid(void *priv, const u8 *ssid,
6fc6879b
JM		 956 size_t ssid_len)
957{
958 struct wpa_driver_bsd_data *drv = priv;
a65f4a57
MH		 959#ifdef __NetBSD__
960 struct ieee80211_nwid nwid;
961 struct ifreq ifr;
6fc6879b 962
a65f4a57
MH		 963 os_memcpy(nwid.i_nwid, ssid, ssid_len);
964 nwid.i_len = ssid_len;
965 os_memset(&ifr, 0, sizeof(ifr));
966 os_strncpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
967 ifr.ifr_data = (void *)&nwid;
968 return ioctl(drv->sock, SIOCS80211NWID, &ifr);
969#else
6fc6879b 970 return set80211var(drv, IEEE80211_IOC_SSID, ssid, ssid_len);
a65f4a57 971#endif
6fc6879b
JM		 972}
973
974static int
975wpa_driver_bsd_set_wpa_ie(struct wpa_driver_bsd_data *drv,
4df91b3f 976 const u8 *wpa_ie, size_t wpa_ie_len)
6fc6879b
JM		 977{
978 return set80211var(drv, IEEE80211_IOC_OPTIE, wpa_ie, wpa_ie_len);
979}
980
981static int
982wpa_driver_bsd_set_wpa_internal(void *priv, int wpa, int privacy)
983{
984 struct wpa_driver_bsd_data *drv = priv;
985 int ret = 0;
986
987 wpa_printf(MSG_DEBUG, "%s: wpa=%d privacy=%d",
988 __FUNCTION__, wpa, privacy);
989
990 if (!wpa && wpa_driver_bsd_set_wpa_ie(drv, NULL, 0) < 0)
991 ret = -1;
992 if (set80211param(drv, IEEE80211_IOC_PRIVACY, privacy) < 0)
993 ret = -1;
994 if (set80211param(drv, IEEE80211_IOC_WPA, wpa) < 0)
995 ret = -1;
996
997 return ret;
998}
999
1000static int
1001wpa_driver_bsd_set_wpa(void *priv, int enabled)
1002{
1003 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
1004
1005 return wpa_driver_bsd_set_wpa_internal(priv, enabled ? 3 : 0, enabled);
1006}
1007
1008static int
1009wpa_driver_bsd_del_key(struct wpa_driver_bsd_data *drv, int key_idx,
1010 const unsigned char *addr)
1011{
1012 struct ieee80211req_del_key wk;
1013
1014 os_memset(&wk, 0, sizeof(wk));
1015 if (addr != NULL &&
1016 bcmp(addr, "\xff\xff\xff\xff\xff\xff", IEEE80211_ADDR_LEN) != 0) {
1017 struct ether_addr ea;
1018
1019 os_memcpy(&ea, addr, IEEE80211_ADDR_LEN);
1020 wpa_printf(MSG_DEBUG, "%s: addr=%s keyidx=%d",
1021 __func__, ether_ntoa(&ea), key_idx);
1022 os_memcpy(wk.idk_macaddr, addr, IEEE80211_ADDR_LEN);
1023 wk.idk_keyix = (uint8_t) IEEE80211_KEYIX_NONE;
1024 } else {
1025 wpa_printf(MSG_DEBUG, "%s: keyidx=%d", __func__, key_idx);
1026 wk.idk_keyix = key_idx;
1027 }
1028 return set80211var(drv, IEEE80211_IOC_DELKEY, &wk, sizeof(wk));
1029}
1030
1031static int
1032wpa_driver_bsd_set_key(void *priv, wpa_alg alg,
1033 const unsigned char *addr, int key_idx, int set_tx,
1034 const u8 *seq, size_t seq_len,
1035 const u8 *key, size_t key_len)
1036{
1037 struct wpa_driver_bsd_data *drv = priv;
1038 struct ieee80211req_key wk;
1039 struct ether_addr ea;
1040 char *alg_name;
1041 u_int8_t cipher;
1042
1043 if (alg == WPA_ALG_NONE)
1044 return wpa_driver_bsd_del_key(drv, key_idx, addr);
1045
1046 switch (alg) {
1047 case WPA_ALG_WEP:
1048 alg_name = "WEP";
1049 cipher = IEEE80211_CIPHER_WEP;
1050 break;
1051 case WPA_ALG_TKIP:
1052 alg_name = "TKIP";
1053 cipher = IEEE80211_CIPHER_TKIP;
1054 break;
1055 case WPA_ALG_CCMP:
1056 alg_name = "CCMP";
1057 cipher = IEEE80211_CIPHER_AES_CCM;
1058 break;
1059 default:
1060 wpa_printf(MSG_DEBUG, "%s: unknown/unsupported algorithm %d",
1061 __func__, alg);
1062 return -1;
1063 }
1064
1065 os_memcpy(&ea, addr, IEEE80211_ADDR_LEN);
1066 wpa_printf(MSG_DEBUG,
1067 "%s: alg=%s addr=%s key_idx=%d set_tx=%d seq_len=%zu key_len=%zu",
1068 __func__, alg_name, ether_ntoa(&ea), key_idx, set_tx,
1069 seq_len, key_len);
1070
1071 if (seq_len > sizeof(u_int64_t)) {
1072 wpa_printf(MSG_DEBUG, "%s: seq_len %zu too big",
1073 __func__, seq_len);
1074 return -2;
1075 }
1076 if (key_len > sizeof(wk.ik_keydata)) {
1077 wpa_printf(MSG_DEBUG, "%s: key length %zu too big",
1078 __func__, key_len);
1079 return -3;
1080 }
1081
1082 os_memset(&wk, 0, sizeof(wk));
1083 wk.ik_type = cipher;
1084 wk.ik_flags = IEEE80211_KEY_RECV;
1085 if (set_tx)
1086 wk.ik_flags |= IEEE80211_KEY_XMIT;
1087 os_memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
1088 /*
1089 * Deduce whether group/global or unicast key by checking
1090 * the address (yech). Note also that we can only mark global
1091 * keys default; doing this for a unicast key is an error.
1092 */
1093 if (bcmp(addr, "\xff\xff\xff\xff\xff\xff", IEEE80211_ADDR_LEN) == 0) {
1094 wk.ik_flags |= IEEE80211_KEY_GROUP;
1095 wk.ik_keyix = key_idx;
1096 } else {
1097 wk.ik_keyix = (key_idx == 0 ? IEEE80211_KEYIX_NONE : key_idx);
1098 }
1099 if (wk.ik_keyix != IEEE80211_KEYIX_NONE && set_tx)
1100 wk.ik_flags |= IEEE80211_KEY_DEFAULT;
1101 wk.ik_keylen = key_len;
1102 os_memcpy(&wk.ik_keyrsc, seq, seq_len);
1103 os_memcpy(wk.ik_keydata, key, key_len);
1104
1105 return set80211var(drv, IEEE80211_IOC_WPAKEY, &wk, sizeof(wk));
1106}
1107
1108static int
1109wpa_driver_bsd_set_countermeasures(void *priv, int enabled)
1110{
1111 struct wpa_driver_bsd_data *drv = priv;
1112
1113 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
1114 return set80211param(drv, IEEE80211_IOC_COUNTERMEASURES, enabled);
1115}
1116
1117
1118static int
1119wpa_driver_bsd_set_drop_unencrypted(void *priv, int enabled)
1120{
1121 struct wpa_driver_bsd_data *drv = priv;
1122
1123 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
1124 return set80211param(drv, IEEE80211_IOC_DROPUNENCRYPTED, enabled);
1125}
1126
1127static int
1128wpa_driver_bsd_deauthenticate(void *priv, const u8 *addr, int reason_code)
1129{
1130 struct wpa_driver_bsd_data *drv = priv;
1131 struct ieee80211req_mlme mlme;
1132
1133 wpa_printf(MSG_DEBUG, "%s", __func__);
1134 os_memset(&mlme, 0, sizeof(mlme));
1135 mlme.im_op = IEEE80211_MLME_DEAUTH;
1136 mlme.im_reason = reason_code;
1137 os_memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
1138 return set80211var(drv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme));
1139}
1140
1141static int
1142wpa_driver_bsd_disassociate(void *priv, const u8 *addr, int reason_code)
1143{
1144 struct wpa_driver_bsd_data *drv = priv;
1145 struct ieee80211req_mlme mlme;
1146
1147 wpa_printf(MSG_DEBUG, "%s", __func__);
1148 os_memset(&mlme, 0, sizeof(mlme));
1149 mlme.im_op = IEEE80211_MLME_DISASSOC;
1150 mlme.im_reason = reason_code;
1151 os_memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
1152 return set80211var(drv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme));
1153}
1154
1155static int
1156wpa_driver_bsd_associate(void *priv, struct wpa_driver_associate_params *params)
1157{
1158 struct wpa_driver_bsd_data *drv = priv;
1159 struct ieee80211req_mlme mlme;
1160 int privacy;
1161
1162 wpa_printf(MSG_DEBUG,
1163 "%s: ssid '%.*s' wpa ie len %u pairwise %u group %u key mgmt %u"
1164 , __func__
92e63aaf
JM		 1165 , (unsigned int) params->ssid_len, params->ssid
1166 , (unsigned int) params->wpa_ie_len
6fc6879b
JM		 1167 , params->pairwise_suite
1168 , params->group_suite
1169 , params->key_mgmt_suite
1170 );
1171
1172 /* XXX error handling is wrong but unclear what to do... */
1173 if (wpa_driver_bsd_set_wpa_ie(drv, params->wpa_ie, params->wpa_ie_len) < 0)
1174 return -1;
1175#ifndef NEW_FREEBSD_MLME_ASSOC
1176 if (wpa_driver_bsd_set_ssid(drv, params->ssid, params->ssid_len) < 0)
1177 return -1;
1178#endif
1179
1180 privacy = !(params->pairwise_suite == CIPHER_NONE &&
1181 params->group_suite == CIPHER_NONE &&
1182 params->key_mgmt_suite == KEY_MGMT_NONE &&
1183 params->wpa_ie_len == 0);
1184 wpa_printf(MSG_DEBUG, "%s: set PRIVACY %u", __func__, privacy);
1185
1186 if (set80211param(drv, IEEE80211_IOC_PRIVACY, privacy) < 0)
1187 return -1;
1188
1189 if (params->wpa_ie_len &&
1190 set80211param(drv, IEEE80211_IOC_WPA,
1191 params->wpa_ie[0] == WLAN_EID_RSN ? 2 : 1) < 0)
1192 return -1;
1193
1194 os_memset(&mlme, 0, sizeof(mlme));
1195 mlme.im_op = IEEE80211_MLME_ASSOC;
1196#ifdef NEW_FREEBSD_MLME_ASSOC
1197 if (params->ssid != NULL)
1198 os_memcpy(mlme.im_ssid, params->ssid, params->ssid_len);
1199 mlme.im_ssid_len = params->ssid_len;
1200#endif
1201 if (params->bssid != NULL)
1202 os_memcpy(mlme.im_macaddr, params->bssid, IEEE80211_ADDR_LEN);
1203 if (set80211var(drv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme)) < 0)
1204 return -1;
1205 return 0;
1206}
1207
1208static int
1209wpa_driver_bsd_set_auth_alg(void *priv, int auth_alg)
1210{
1211 struct wpa_driver_bsd_data *drv = priv;
1212 int authmode;
1213
1214 if ((auth_alg & AUTH_ALG_OPEN_SYSTEM) &&
1215 (auth_alg & AUTH_ALG_SHARED_KEY))
1216 authmode = IEEE80211_AUTH_AUTO;
1217 else if (auth_alg & AUTH_ALG_SHARED_KEY)
1218 authmode = IEEE80211_AUTH_SHARED;
1219 else
1220 authmode = IEEE80211_AUTH_OPEN;
1221
1222 return set80211param(drv, IEEE80211_IOC_AUTHMODE, authmode);
1223}
1224
1225static int
1226wpa_driver_bsd_scan(void *priv, const u8 *ssid, size_t ssid_len)
1227{
1228 struct wpa_driver_bsd_data *drv = priv;
1229 int flags;
1230
1231 /* NB: interface must be marked UP to do a scan */
1232 if (getifflags(drv, &flags) != 0 || setifflags(drv, flags | IFF_UP) != 0)
1233 return -1;
1234
1235 /* set desired ssid before scan */
1236 if (wpa_driver_bsd_set_ssid(drv, ssid, ssid_len) < 0)
1237 return -1;
1238
1239 /* NB: net80211 delivers a scan complete event so no need to poll */
1240 return set80211param(drv, IEEE80211_IOC_SCAN_REQ, 0);
1241}
1242
6fc6879b
JM		 1243static void
1244wpa_driver_bsd_event_receive(int sock, void *ctx, void *sock_ctx)
1245{
1246 struct wpa_driver_bsd_data *drv = sock_ctx;
1247 char buf[2048];
1248 struct if_announcemsghdr *ifan;
1249 struct if_msghdr *ifm;
1250 struct rt_msghdr *rtm;
1251 union wpa_event_data event;
1252 struct ieee80211_michael_event *mic;
1253 int n;
1254
1255 n = read(sock, buf, sizeof(buf));
1256 if (n < 0) {
1257 if (errno != EINTR && errno != EAGAIN)
1258 perror("read(PF_ROUTE)");
1259 return;
1260 }
1261
1262 rtm = (struct rt_msghdr *) buf;
1263 if (rtm->rtm_version != RTM_VERSION) {
1264 wpa_printf(MSG_DEBUG, "Routing message version %d not "
1265 "understood\n", rtm->rtm_version);
1266 return;
1267 }
1268 os_memset(&event, 0, sizeof(event));
1269 switch (rtm->rtm_type) {
1270 case RTM_IFANNOUNCE:
1271 ifan = (struct if_announcemsghdr *) rtm;
1272 if (ifan->ifan_index != drv->ifindex)
1273 break;
1274 strlcpy(event.interface_status.ifname, drv->ifname,
1275 sizeof(event.interface_status.ifname));
1276 switch (ifan->ifan_what) {
1277 case IFAN_DEPARTURE:
1278 event.interface_status.ievent = EVENT_INTERFACE_REMOVED;
1279 default:
1280 return;
1281 }
1282 wpa_printf(MSG_DEBUG, "RTM_IFANNOUNCE: Interface '%s' %s",
1283 event.interface_status.ifname,
1284 ifan->ifan_what == IFAN_DEPARTURE ?
1285 "removed" : "added");
1286 wpa_supplicant_event(ctx, EVENT_INTERFACE_STATUS, &event);
1287 break;
1288 case RTM_IEEE80211:
1289 ifan = (struct if_announcemsghdr *) rtm;
1290 if (ifan->ifan_index != drv->ifindex)
1291 break;
1292 switch (ifan->ifan_what) {
1293 case RTM_IEEE80211_ASSOC:
1294 case RTM_IEEE80211_REASSOC:
1295 wpa_supplicant_event(ctx, EVENT_ASSOC, NULL);
1296 break;
1297 case RTM_IEEE80211_DISASSOC:
1298 wpa_supplicant_event(ctx, EVENT_DISASSOC, NULL);
1299 break;
1300 case RTM_IEEE80211_SCAN:
1301 wpa_supplicant_event(ctx, EVENT_SCAN_RESULTS, NULL);
1302 break;
1303 case RTM_IEEE80211_REPLAY:
1304 /* ignore */
1305 break;
1306 case RTM_IEEE80211_MICHAEL:
1307 mic = (struct ieee80211_michael_event *) &ifan[1];
1308 wpa_printf(MSG_DEBUG,
1309 "Michael MIC failure wireless event: "
1310 "keyix=%u src_addr=" MACSTR, mic->iev_keyix,
1311 MAC2STR(mic->iev_src));
1312
1313 os_memset(&event, 0, sizeof(event));
1314 event.michael_mic_failure.unicast =
1315 !IEEE80211_IS_MULTICAST(mic->iev_dst);
1316 wpa_supplicant_event(ctx, EVENT_MICHAEL_MIC_FAILURE,
1317 &event);
1318 break;
1319 }
1320 break;
1321 case RTM_IFINFO:
1322 ifm = (struct if_msghdr *) rtm;
1323 if (ifm->ifm_index != drv->ifindex)
1324 break;
1325 if ((rtm->rtm_flags & RTF_UP) == 0) {
1326 strlcpy(event.interface_status.ifname, drv->ifname,
1327 sizeof(event.interface_status.ifname));
1328 event.interface_status.ievent = EVENT_INTERFACE_REMOVED;
1329 wpa_printf(MSG_DEBUG, "RTM_IFINFO: Interface '%s' DOWN",
1330 event.interface_status.ifname);
1331 wpa_supplicant_event(ctx, EVENT_INTERFACE_STATUS, &event);
1332 }
1333 break;
1334 }
1335}
1336
a65f4a57
MH		 1337static void
1338wpa_driver_bsd_add_scan_entry(struct wpa_scan_results *res,
1339 struct ieee80211req_scan_result *sr)
6fc6879b 1340{
a65f4a57
MH		 1341 struct wpa_scan_res *result, **tmp;
1342 size_t extra_len;
1343 u8 *pos;
6fc6879b 1344
a65f4a57
MH		 1345 extra_len = 2 + sr->isr_ssid_len;
1346 extra_len += 2 + sr->isr_nrates;
1347 extra_len += 3; /* ERP IE */
1348 extra_len += sr->isr_ie_len;
6fc6879b 1349
a65f4a57
MH		 1350 result = os_zalloc(sizeof(*result) + extra_len);
1351 if (result == NULL)
1352 return;
1353 os_memcpy(result->bssid, sr->isr_bssid, ETH_ALEN);
1354 result->freq = sr->isr_freq;
1355 result->beacon_int = sr->isr_intval;
1356 result->caps = sr->isr_capinfo;
1357 result->qual = sr->isr_rssi;
1358 result->noise = sr->isr_noise;
6fc6879b 1359
a65f4a57 1360 pos = (u8 *)(result + 1);
6fc6879b 1361
a65f4a57
MH		 1362 *pos++ = WLAN_EID_SSID;
1363 *pos++ = sr->isr_ssid_len;
1364 os_memcpy(pos, sr + 1, sr->isr_ssid_len);
1365 pos += sr->isr_ssid_len;
6fc6879b 1366
a65f4a57
MH		 1367 /*
1368 * Deal all rates as supported rate.
1369 * Because net80211 doesn't report extended supported rate or not.
1370 */
1371 *pos++ = WLAN_EID_SUPP_RATES;
1372 *pos++ = sr->isr_nrates;
1373 os_memcpy(pos, sr->isr_rates, sr->isr_nrates);
1374 pos += sr->isr_nrates;
6fc6879b 1375
a65f4a57
MH		 1376 *pos++ = WLAN_EID_ERP_INFO;
1377 *pos++ = 1;
1378 *pos++ = sr->isr_erp;
6fc6879b 1379
a65f4a57
MH		 1380 os_memcpy(pos, (u8 *)(sr + 1) + sr->isr_ssid_len, sr->isr_ie_len);
1381 pos += sr->isr_ie_len;
6fc6879b 1382
a65f4a57
MH		 1383 result->ie_len = pos - (u8 *)(result + 1);
1384
1385 tmp = os_realloc(res->res,
1386 (res->num + 1) * sizeof(struct wpa_scan_res *));
1387 if (tmp == NULL) {
1388 os_free(result);
1389 return;
1390 }
1391 tmp[res->num++] = result;
1392 res->res = tmp;
6fc6879b
JM		 1393}
1394
a65f4a57
MH		 1395struct wpa_scan_results *
1396wpa_driver_bsd_get_scan_results2(void *priv)
6fc6879b 1397{
6fc6879b 1398 struct wpa_driver_bsd_data *drv = priv;
6fc6879b 1399 struct ieee80211req_scan_result *sr;
a65f4a57
MH		 1400 struct wpa_scan_results *res;
1401 int len, rest;
1402 uint8_t buf[24*1024], *pos;
6fc6879b 1403
a65f4a57 1404 len = get80211var(drv, IEEE80211_IOC_SCAN_RESULTS, buf, 24*1024);
6fc6879b 1405 if (len < 0)
a65f4a57
MH		 1406 return NULL;
1407
1408 res = os_zalloc(sizeof(*res));
1409 if (res == NULL)
1410 return NULL;
6fc6879b 1411
a65f4a57
MH		 1412 pos = buf;
1413 rest = len;
1414 while (rest >= sizeof(struct ieee80211req_scan_result)) {
1415 sr = (struct ieee80211req_scan_result *)pos;
1416 wpa_driver_bsd_add_scan_entry(res, sr);
1417 pos += sr->isr_len;
1418 rest -= sr->isr_len;
6fc6879b 1419 }
6fc6879b 1420
a65f4a57
MH		 1421 wpa_printf(MSG_DEBUG, "Received %d bytes of scan results (%lu BSSes)",
1422 len, (unsigned long)res->num);
6fc6879b 1423
a65f4a57 1424 return res;
6fc6879b
JM		 1425}
1426
1427static void *
1428wpa_driver_bsd_init(void *ctx, const char *ifname)
1429{
1430#define GETPARAM(drv, param, v) \
1431 (((v) = get80211param(drv, param)) != -1)
1432 struct wpa_driver_bsd_data *drv;
1433
1434 drv = os_zalloc(sizeof(*drv));
1435 if (drv == NULL)
1436 return NULL;
1437 /*
1438 * NB: We require the interface name be mappable to an index.
1439 * This implies we do not support having wpa_supplicant
1440 * wait for an interface to appear. This seems ok; that
1441 * doesn't belong here; it's really the job of devd.
1442 */
1443 drv->ifindex = if_nametoindex(ifname);
1444 if (drv->ifindex == 0) {
1445 wpa_printf(MSG_DEBUG, "%s: interface %s does not exist",
1446 __func__, ifname);
1447 goto fail1;
1448 }
1449 drv->sock = socket(PF_INET, SOCK_DGRAM, 0);
1450 if (drv->sock < 0)
1451 goto fail1;
1452 drv->route = socket(PF_ROUTE, SOCK_RAW, 0);
1453 if (drv->route < 0)
1454 goto fail;
1455 eloop_register_read_sock(drv->route,
1456 wpa_driver_bsd_event_receive, ctx, drv);
1457
1458 drv->ctx = ctx;
1459 os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
1460
1461 if (!GETPARAM(drv, IEEE80211_IOC_ROAMING, drv->prev_roaming)) {
1462 wpa_printf(MSG_DEBUG, "%s: failed to get roaming state: %s",
1463 __func__, strerror(errno));
1464 goto fail;
1465 }
1466 if (!GETPARAM(drv, IEEE80211_IOC_PRIVACY, drv->prev_privacy)) {
1467 wpa_printf(MSG_DEBUG, "%s: failed to get privacy state: %s",
1468 __func__, strerror(errno));
1469 goto fail;
1470 }
1471 if (!GETPARAM(drv, IEEE80211_IOC_WPA, drv->prev_wpa)) {
1472 wpa_printf(MSG_DEBUG, "%s: failed to get wpa state: %s",
1473 __func__, strerror(errno));
1474 goto fail;
1475 }
1476 if (set80211param(drv, IEEE80211_IOC_ROAMING, IEEE80211_ROAMING_MANUAL) < 0) {
1477 wpa_printf(MSG_DEBUG, "%s: failed to set wpa_supplicant-based "
1478 "roaming: %s", __func__, strerror(errno));
1479 goto fail;
1480 }
1481
1482 if (set80211param(drv, IEEE80211_IOC_WPA, 1+2) < 0) {
1483 wpa_printf(MSG_DEBUG, "%s: failed to enable WPA support %s",
1484 __func__, strerror(errno));
1485 goto fail;
1486 }
1487
1488 return drv;
1489fail:
1490 close(drv->sock);
1491fail1:
1492 os_free(drv);
1493 return NULL;
1494#undef GETPARAM
1495}
1496
1497static void
1498wpa_driver_bsd_deinit(void *priv)
1499{
1500 struct wpa_driver_bsd_data *drv = priv;
1501 int flags;
1502
1503 eloop_unregister_read_sock(drv->route);
1504
1505 /* NB: mark interface down */
1506 if (getifflags(drv, &flags) == 0)
1507 (void) setifflags(drv, flags &~ IFF_UP);
1508
1509 wpa_driver_bsd_set_wpa_internal(drv, drv->prev_wpa, drv->prev_privacy);
1510 if (set80211param(drv, IEEE80211_IOC_ROAMING, drv->prev_roaming) < 0)
1511 wpa_printf(MSG_DEBUG, "%s: failed to restore roaming state",
1512 __func__);
1513
1514 (void) close(drv->route); /* ioctl socket */
1515 (void) close(drv->sock); /* event socket */
1516 os_free(drv);
1517}
1518
1519
1520const struct wpa_driver_ops wpa_driver_bsd_ops = {
1521 .name = "bsd",
1522 .desc = "BSD 802.11 support (Atheros, etc.)",
1523 .init = wpa_driver_bsd_init,
1524 .deinit = wpa_driver_bsd_deinit,
1525 .get_bssid = wpa_driver_bsd_get_bssid,
1526 .get_ssid = wpa_driver_bsd_get_ssid,
1527 .set_wpa = wpa_driver_bsd_set_wpa,
1528 .set_key = wpa_driver_bsd_set_key,
1529 .set_countermeasures = wpa_driver_bsd_set_countermeasures,
1530 .set_drop_unencrypted = wpa_driver_bsd_set_drop_unencrypted,
1531 .scan = wpa_driver_bsd_scan,
a65f4a57 1532 .get_scan_results2 = wpa_driver_bsd_get_scan_results2,
6fc6879b
JM		 1533 .deauthenticate = wpa_driver_bsd_deauthenticate,
1534 .disassociate = wpa_driver_bsd_disassociate,
1535 .associate = wpa_driver_bsd_associate,
1536 .set_auth_alg = wpa_driver_bsd_set_auth_alg,
1537};
c5121837
JM		 1538
1539#endif /* HOSTAPD */
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