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driver_bsd.c: Reduce code duplication (DELKEY)
[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"
90973fb2 22#include "common/ieee802_11_defs.h"
6fc6879b
JM		 23
24#include <net/if.h>
5197244a 25#include <net/if_media.h>
898d6921
JR		 26
27#ifdef __NetBSD__
28#include <net/if_ether.h>
898d6921 29#else
6fc6879b 30#include <net/ethernet.h>
898d6921 31#endif
131289d8 32#include <net/route.h>
6fc6879b 33
9b336bce
MH		 34#ifdef __DragonFly__
35#include <netproto/802_11/ieee80211_ioctl.h>
36#include <netproto/802_11/ieee80211_dragonfly.h>
37#else /* __DragonFly__ */
6fc6879b 38#include <net80211/ieee80211.h>
6fc6879b 39#include <net80211/ieee80211_ioctl.h>
c610dba1 40#include <net80211/ieee80211_crypto.h>
9b336bce 41#endif /* __DragonFly__ */
131289d8
MH		 42#if __FreeBSD__
43#include <net80211/ieee80211_freebsd.h>
44#endif
45#if __NetBSD__
46#include <net80211/ieee80211_netbsd.h>
47#endif
48
66d4085f
RM		 49/* Generic functions for hostapd and wpa_supplicant */
50
51static int
52bsd_set80211var(int s, const char *ifname, int op, const void *arg, int arg_len)
53{
54 struct ieee80211req ireq;
55
56 os_memset(&ireq, 0, sizeof(ireq));
57 os_strlcpy(ireq.i_name, ifname, sizeof(ireq.i_name));
58 ireq.i_type = op;
59 ireq.i_len = arg_len;
60 ireq.i_data = (void *) arg;
61
62 if (ioctl(s, SIOCS80211, &ireq) < 0) {
63 fprintf(stderr, "ioctl[SIOCS80211, op %u, len %u]: %s\n",
64 op, arg_len, strerror(errno));
65 return -1;
66 }
67 return 0;
68}
69
70static int
71bsd_get80211var(int s, const char *ifname, int op, void *arg, int arg_len)
72{
73 struct ieee80211req ireq;
74
75 os_memset(&ireq, 0, sizeof(ireq));
76 os_strlcpy(ireq.i_name, ifname, sizeof(ireq.i_name));
77 ireq.i_type = op;
78 ireq.i_len = arg_len;
79 ireq.i_data = arg;
80
81 if (ioctl(s, SIOCG80211, &ireq) < 0) {
82 fprintf(stderr, "ioctl[SIOCG80211, op %u, len %u]: %s\n",
83 op, arg_len, strerror(errno));
84 return -1;
85 }
86 return ireq.i_len;
87}
88
89static int
90bsd_set80211param(int s, const char *ifname, int op, int arg)
91{
92 struct ieee80211req ireq;
93
94 os_memset(&ireq, 0, sizeof(ireq));
95 os_strlcpy(ireq.i_name, ifname, sizeof(ireq.i_name));
96 ireq.i_type = op;
97 ireq.i_val = arg;
98
99 if (ioctl(s, SIOCS80211, &ireq) < 0) {
100 fprintf(stderr, "ioctl[SIOCS80211, op %u, arg 0x%x]: %s\n",
101 op, arg, strerror(errno));
102 return -1;
103 }
104 return 0;
105}
106
107static int
108bsd_get_ssid(int s, const char *ifname, u8 *ssid)
109{
110#ifdef SIOCG80211NWID
111 struct ieee80211_nwid nwid;
112 struct ifreq ifr;
113
114 os_memset(&ifr, 0, sizeof(ifr));
115 os_strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
116 ifr.ifr_data = (void *)&nwid;
117 if (ioctl(s, SIOCG80211NWID, &ifr) < 0 ||
118 nwid.i_len > IEEE80211_NWID_LEN)
119 return -1;
120 os_memcpy(ssid, nwid.i_nwid, nwid.i_len);
121 return nwid.i_len;
122#else
123 return bsd_get80211var(s, ifname, IEEE80211_IOC_SSID,
124 ssid, IEEE80211_NWID_LEN);
125#endif
126}
127
128static int
129bsd_set_ssid(int s, const char *ifname, const u8 *ssid, size_t ssid_len)
130{
131#ifdef SIOCS80211NWID
132 struct ieee80211_nwid nwid;
133 struct ifreq ifr;
134
135 os_memcpy(nwid.i_nwid, ssid, ssid_len);
136 nwid.i_len = ssid_len;
137 os_memset(&ifr, 0, sizeof(ifr));
138 os_strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
139 ifr.ifr_data = (void *)&nwid;
140 return ioctl(s, SIOCS80211NWID, &ifr);
141#else
142 return bsd_set80211var(s, ifname, IEEE80211_IOC_SSID, ssid, ssid_len);
143#endif
144}
145
5197244a
MH		 146static int
147bsd_get_if_media(int s, const char *ifname)
148{
149 struct ifmediareq ifmr;
150
151 os_memset(&ifmr, 0, sizeof(ifmr));
152 os_strlcpy(ifmr.ifm_name, ifname, sizeof(ifmr.ifm_name));
153
154 if (ioctl(s, SIOCGIFMEDIA, &ifmr) < 0) {
155 wpa_printf(MSG_ERROR, "%s: SIOCGIFMEDIA %s", __func__,
156 strerror(errno));
157 return -1;
158 }
159
160 return ifmr.ifm_current;
161}
162
163static int
164bsd_set_if_media(int s, const char *ifname, int media)
165{
166 struct ifreq ifr;
167
168 os_memset(&ifr, 0, sizeof(ifr));
169 os_strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
170 ifr.ifr_media = media;
171
172 if (ioctl(s, SIOCSIFMEDIA, &ifr) < 0) {
173 wpa_printf(MSG_ERROR, "%s: SIOCSIFMEDIA %s", __func__,
174 strerror(errno));
175 return -1;
176 }
177
178 return 0;
179}
180
181static int
182bsd_set_mediaopt(int s, const char *ifname, uint32_t mask, uint32_t mode)
183{
184 int media = bsd_get_if_media(s, ifname);
185
186 if (media < 0)
187 return -1;
188 media &= ~mask;
189 media |= mode;
190 if (bsd_set_if_media(s, ifname, media) < 0)
191 return -1;
192 return 0;
193}
194
cbdecd2b
MH		 195static int
196bsd_del_key(int s, const char *ifname, const u8 *addr, int key_idx)
197{
198 struct ieee80211req_del_key wk;
199
200 os_memset(&wk, 0, sizeof(wk));
201 if (addr == NULL) {
202 wpa_printf(MSG_DEBUG, "%s: key_idx=%d", __func__, key_idx);
203 wk.idk_keyix = key_idx;
204 } else {
205 wpa_printf(MSG_DEBUG, "%s: addr=" MACSTR, __func__,
206 MAC2STR(addr));
207 os_memcpy(wk.idk_macaddr, addr, IEEE80211_ADDR_LEN);
208 wk.idk_keyix = (u_int8_t) IEEE80211_KEYIX_NONE; /* XXX */
209 }
210
211 return bsd_set80211var(s, ifname, IEEE80211_IOC_DELKEY, &wk,
212 sizeof(wk));
213}
214
66d4085f 215
131289d8 216#ifdef HOSTAPD
6fc6879b 217
c5121837
JM		 218/*
219 * Avoid conflicts with hostapd definitions by undefining couple of defines
220 * from net80211 header files.
221 */
222#undef RSN_VERSION
223#undef WPA_VERSION
224#undef WPA_OUI_TYPE
225
c5121837 226#include "l2_packet/l2_packet.h"
c5121837
JM		 227
228struct bsd_driver_data {
229 struct hostapd_data *hapd; /* back pointer */
230
231 char iface[IFNAMSIZ + 1];
232 struct l2_packet_data *sock_xmit; /* raw packet xmit socket */
233 int ioctl_sock; /* socket for ioctl() use */
234 int wext_sock; /* socket for wireless events */
235};
236
731723a5
JM		 237static int bsd_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
238 int reason_code);
c5121837
JM		 239
240static int
241set80211var(struct bsd_driver_data *drv, int op, const void *arg, int arg_len)
242{
66d4085f 243 return bsd_set80211var(drv->ioctl_sock, drv->iface, op, arg, arg_len);
c5121837
JM		 244}
245
246static int
247get80211var(struct bsd_driver_data *drv, int op, void *arg, int arg_len)
248{
66d4085f 249 return bsd_get80211var(drv->ioctl_sock, drv->iface, op, arg, arg_len);
c5121837
JM		 250}
251
252static int
253set80211param(struct bsd_driver_data *drv, int op, int arg)
254{
66d4085f 255 return bsd_set80211param(drv->ioctl_sock, drv->iface, op, arg);
c5121837
JM		 256}
257
258static const char *
259ether_sprintf(const u8 *addr)
260{
261 static char buf[sizeof(MACSTR)];
262
263 if (addr != NULL)
264 snprintf(buf, sizeof(buf), MACSTR, MAC2STR(addr));
265 else
266 snprintf(buf, sizeof(buf), MACSTR, 0,0,0,0,0,0);
267 return buf;
268}
269
270/*
271 * Configure WPA parameters.
272 */
273static int
af586419 274bsd_configure_wpa(struct bsd_driver_data *drv, struct wpa_bss_params *params)
c5121837
JM		 275{
276 static const char *ciphernames[] =
277 { "WEP", "TKIP", "AES-OCB", "AES-CCM", "CKIP", "NONE" };
c5121837
JM		 278 int v;
279
af586419 280 switch (params->wpa_group) {
c5121837
JM		 281 case WPA_CIPHER_CCMP:
282 v = IEEE80211_CIPHER_AES_CCM;
283 break;
284 case WPA_CIPHER_TKIP:
285 v = IEEE80211_CIPHER_TKIP;
286 break;
287 case WPA_CIPHER_WEP104:
288 v = IEEE80211_CIPHER_WEP;
289 break;
290 case WPA_CIPHER_WEP40:
291 v = IEEE80211_CIPHER_WEP;
292 break;
293 case WPA_CIPHER_NONE:
294 v = IEEE80211_CIPHER_NONE;
295 break;
296 default:
297 printf("Unknown group key cipher %u\n",
af586419 298 params->wpa_group);
c5121837
JM		 299 return -1;
300 }
301 wpa_printf(MSG_DEBUG, "%s: group key cipher=%s (%u)",
302 __func__, ciphernames[v], v);
303 if (set80211param(drv, IEEE80211_IOC_MCASTCIPHER, v)) {
304 printf("Unable to set group key cipher to %u (%s)\n",
305 v, ciphernames[v]);
306 return -1;
307 }
308 if (v == IEEE80211_CIPHER_WEP) {
309 /* key length is done only for specific ciphers */
af586419 310 v = (params->wpa_group == WPA_CIPHER_WEP104 ? 13 : 5);
c5121837
JM		 311 if (set80211param(drv, IEEE80211_IOC_MCASTKEYLEN, v)) {
312 printf("Unable to set group key length to %u\n", v);
313 return -1;
314 }
315 }
316
317 v = 0;
af586419 318 if (params->wpa_pairwise & WPA_CIPHER_CCMP)
c5121837 319 v |= 1<<IEEE80211_CIPHER_AES_CCM;
af586419 320 if (params->wpa_pairwise & WPA_CIPHER_TKIP)
c5121837 321 v |= 1<<IEEE80211_CIPHER_TKIP;
af586419 322 if (params->wpa_pairwise & WPA_CIPHER_NONE)
c5121837
JM		 323 v |= 1<<IEEE80211_CIPHER_NONE;
324 wpa_printf(MSG_DEBUG, "%s: pairwise key ciphers=0x%x", __func__, v);
325 if (set80211param(drv, IEEE80211_IOC_UCASTCIPHERS, v)) {
326 printf("Unable to set pairwise key ciphers to 0x%x\n", v);
327 return -1;
328 }
329
330 wpa_printf(MSG_DEBUG, "%s: key management algorithms=0x%x",
af586419
JM		 331 __func__, params->wpa_key_mgmt);
332 if (set80211param(drv, IEEE80211_IOC_KEYMGTALGS, params->wpa_key_mgmt))
333 {
c5121837 334 printf("Unable to set key management algorithms to 0x%x\n",
af586419 335 params->wpa_key_mgmt);
c5121837
JM		 336 return -1;
337 }
338
339 v = 0;
af586419 340 if (params->rsn_preauth)
c5121837
JM		 341 v |= BIT(0);
342 wpa_printf(MSG_DEBUG, "%s: rsn capabilities=0x%x",
af586419 343 __func__, params->rsn_preauth);
c5121837
JM		 344 if (set80211param(drv, IEEE80211_IOC_RSNCAPS, v)) {
345 printf("Unable to set RSN capabilities to 0x%x\n", v);
346 return -1;
347 }
348
af586419
JM		 349 wpa_printf(MSG_DEBUG, "%s: enable WPA= 0x%x", __func__, params->wpa);
350 if (set80211param(drv, IEEE80211_IOC_WPA, params->wpa)) {
351 printf("Unable to set WPA to %u\n", params->wpa);
c5121837
JM		 352 return -1;
353 }
354 return 0;
355}
356
357
358static int
359bsd_set_iface_flags(void *priv, int dev_up)
360{
361 struct bsd_driver_data *drv = priv;
362 struct ifreq ifr;
363
364 wpa_printf(MSG_DEBUG, "%s: dev_up=%d", __func__, dev_up);
365
366 if (drv->ioctl_sock < 0)
367 return -1;
368
369 memset(&ifr, 0, sizeof(ifr));
66d4085f 370 os_strlcpy(ifr.ifr_name, drv->iface, sizeof(ifr.ifr_name));
c5121837
JM		 371
372 if (ioctl(drv->ioctl_sock, SIOCGIFFLAGS, &ifr) != 0) {
373 perror("ioctl[SIOCGIFFLAGS]");
374 return -1;
375 }
376
377 if (dev_up)
378 ifr.ifr_flags |= IFF_UP;
379 else
380 ifr.ifr_flags &= ~IFF_UP;
381
382 if (ioctl(drv->ioctl_sock, SIOCSIFFLAGS, &ifr) != 0) {
383 perror("ioctl[SIOCSIFFLAGS]");
384 return -1;
385 }
386
c5121837
JM		 387 return 0;
388}
389
390static int
e3bd3912 391bsd_set_ieee8021x(void *priv, struct wpa_bss_params *params)
c5121837
JM		 392{
393 struct bsd_driver_data *drv = priv;
c5121837 394
af586419 395 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, params->enabled);
c5121837 396
af586419 397 if (!params->enabled) {
c5121837
JM		 398 /* XXX restore state */
399 return set80211param(priv, IEEE80211_IOC_AUTHMODE,
400 IEEE80211_AUTH_AUTO);
401 }
af586419
JM		 402 if (!params->wpa && !params->ieee802_1x) {
403 hostapd_logger(drv->hapd, NULL, HOSTAPD_MODULE_DRIVER,
c5121837
JM		 404 HOSTAPD_LEVEL_WARNING, "No 802.1X or WPA enabled!");
405 return -1;
406 }
c9b9e494 407 if (params->wpa && bsd_configure_wpa(drv, params) != 0) {
af586419 408 hostapd_logger(drv->hapd, NULL, HOSTAPD_MODULE_DRIVER,
c5121837
JM		 409 HOSTAPD_LEVEL_WARNING, "Error configuring WPA state!");
410 return -1;
411 }
412 if (set80211param(priv, IEEE80211_IOC_AUTHMODE,
af586419
JM		 413 (params->wpa ? IEEE80211_AUTH_WPA : IEEE80211_AUTH_8021X))) {
414 hostapd_logger(drv->hapd, NULL, HOSTAPD_MODULE_DRIVER,
c5121837
JM		 415 HOSTAPD_LEVEL_WARNING, "Error enabling WPA/802.1X!");
416 return -1;
417 }
418 return bsd_set_iface_flags(priv, 1);
419}
420
421static int
422bsd_set_privacy(const char *ifname, void *priv, int enabled)
423{
424 struct bsd_driver_data *drv = priv;
425
426 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
427
428 return set80211param(drv, IEEE80211_IOC_PRIVACY, enabled);
429}
430
431static int
432bsd_set_sta_authorized(void *priv, const u8 *addr, int authorized)
433{
434 struct bsd_driver_data *drv = priv;
435 struct ieee80211req_mlme mlme;
436
437 wpa_printf(MSG_DEBUG, "%s: addr=%s authorized=%d",
438 __func__, ether_sprintf(addr), authorized);
439
440 if (authorized)
441 mlme.im_op = IEEE80211_MLME_AUTHORIZE;
442 else
443 mlme.im_op = IEEE80211_MLME_UNAUTHORIZE;
444 mlme.im_reason = 0;
445 memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
446 return set80211var(drv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme));
447}
448
449static int
450bsd_sta_set_flags(void *priv, const u8 *addr, int total_flags, int flags_or,
451 int flags_and)
452{
453 /* For now, only support setting Authorized flag */
0de39516 454 if (flags_or & WPA_STA_AUTHORIZED)
c5121837 455 return bsd_set_sta_authorized(priv, addr, 1);
0de39516 456 if (!(flags_and & WPA_STA_AUTHORIZED))
c5121837
JM		 457 return bsd_set_sta_authorized(priv, addr, 0);
458 return 0;
459}
460
c5121837 461static int
71934751 462bsd_set_key(const char *ifname, void *priv, enum wpa_alg alg,
c5121837
JM		 463 const u8 *addr, int key_idx, int set_tx, const u8 *seq,
464 size_t seq_len, const u8 *key, size_t key_len)
465{
466 struct bsd_driver_data *drv = priv;
467 struct ieee80211req_key wk;
468 u_int8_t cipher;
469
470 if (alg == WPA_ALG_NONE)
cbdecd2b 471 return bsd_del_key(drv->ioctl_sock, drv->iface, addr, key_idx);
c5121837
JM		 472
473 wpa_printf(MSG_DEBUG, "%s: alg=%d addr=%s key_idx=%d",
474 __func__, alg, ether_sprintf(addr), key_idx);
475
476 if (alg == WPA_ALG_WEP)
477 cipher = IEEE80211_CIPHER_WEP;
478 else if (alg == WPA_ALG_TKIP)
479 cipher = IEEE80211_CIPHER_TKIP;
480 else if (alg == WPA_ALG_CCMP)
481 cipher = IEEE80211_CIPHER_AES_CCM;
482 else {
483 printf("%s: unknown/unsupported algorithm %d\n",
484 __func__, alg);
485 return -1;
486 }
487
488 if (key_len > sizeof(wk.ik_keydata)) {
92e63aaf 489 printf("%s: key length %d too big\n", __func__, (int) key_len);
c5121837
JM		 490 return -3;
491 }
492
493 memset(&wk, 0, sizeof(wk));
494 wk.ik_type = cipher;
495 wk.ik_flags = IEEE80211_KEY_RECV | IEEE80211_KEY_XMIT;
496 if (addr == NULL) {
497 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
498 wk.ik_keyix = key_idx;
499 wk.ik_flags |= IEEE80211_KEY_DEFAULT;
500 } else {
501 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
502 wk.ik_keyix = IEEE80211_KEYIX_NONE;
503 }
504 wk.ik_keylen = key_len;
505 memcpy(wk.ik_keydata, key, key_len);
506
507 return set80211var(drv, IEEE80211_IOC_WPAKEY, &wk, sizeof(wk));
508}
509
510
511static int
512bsd_get_seqnum(const char *ifname, void *priv, const u8 *addr, int idx,
513 u8 *seq)
514{
515 struct bsd_driver_data *drv = priv;
516 struct ieee80211req_key wk;
517
518 wpa_printf(MSG_DEBUG, "%s: addr=%s idx=%d",
519 __func__, ether_sprintf(addr), idx);
520
521 memset(&wk, 0, sizeof(wk));
522 if (addr == NULL)
523 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
524 else
525 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
526 wk.ik_keyix = idx;
527
528 if (get80211var(drv, IEEE80211_IOC_WPAKEY, &wk, sizeof(wk)) < 0) {
529 printf("Failed to get encryption.\n");
530 return -1;
531 }
532
533#ifdef WORDS_BIGENDIAN
534 {
535 /*
536 * wk.ik_keytsc is in host byte order (big endian), need to
537 * swap it to match with the byte order used in WPA.
538 */
539 int i;
540 u8 tmp[WPA_KEY_RSC_LEN];
541 memcpy(tmp, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
542 for (i = 0; i < WPA_KEY_RSC_LEN; i++) {
543 seq[i] = tmp[WPA_KEY_RSC_LEN - i - 1];
544 }
545 }
546#else /* WORDS_BIGENDIAN */
547 memcpy(seq, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
548#endif /* WORDS_BIGENDIAN */
549 return 0;
550}
551
552
553static int
554bsd_flush(void *priv)
555{
556 u8 allsta[IEEE80211_ADDR_LEN];
557
558 memset(allsta, 0xff, IEEE80211_ADDR_LEN);
731723a5 559 return bsd_sta_deauth(priv, NULL, allsta, IEEE80211_REASON_AUTH_LEAVE);
c5121837
JM		 560}
561
562
563static int
564bsd_read_sta_driver_data(void *priv, struct hostap_sta_driver_data *data,
565 const u8 *addr)
566{
567 struct bsd_driver_data *drv = priv;
568 struct ieee80211req_sta_stats stats;
569
570 memcpy(stats.is_u.macaddr, addr, IEEE80211_ADDR_LEN);
571 if (get80211var(drv, IEEE80211_IOC_STA_STATS, &stats, sizeof(stats)) > 0) {
572 /* XXX? do packets counts include non-data frames? */
573 data->rx_packets = stats.is_stats.ns_rx_data;
574 data->rx_bytes = stats.is_stats.ns_rx_bytes;
575 data->tx_packets = stats.is_stats.ns_tx_data;
576 data->tx_bytes = stats.is_stats.ns_tx_bytes;
577 }
578 return 0;
579}
580
581static int
582bsd_set_opt_ie(const char *ifname, void *priv, const u8 *ie, size_t ie_len)
583{
584 /*
585 * Do nothing; we setup parameters at startup that define the
586 * contents of the beacon information element.
587 */
588 return 0;
589}
590
591static int
731723a5 592bsd_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, int reason_code)
c5121837
JM		 593{
594 struct bsd_driver_data *drv = priv;
595 struct ieee80211req_mlme mlme;
596
597 wpa_printf(MSG_DEBUG, "%s: addr=%s reason_code=%d",
598 __func__, ether_sprintf(addr), reason_code);
599
600 mlme.im_op = IEEE80211_MLME_DEAUTH;
601 mlme.im_reason = reason_code;
602 memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
603 return set80211var(drv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme));
604}
605
606static int
731723a5
JM		 607bsd_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
608 int reason_code)
c5121837
JM		 609{
610 struct bsd_driver_data *drv = priv;
611 struct ieee80211req_mlme mlme;
612
613 wpa_printf(MSG_DEBUG, "%s: addr=%s reason_code=%d",
614 __func__, ether_sprintf(addr), reason_code);
615
616 mlme.im_op = IEEE80211_MLME_DISASSOC;
617 mlme.im_reason = reason_code;
618 memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
619 return set80211var(drv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme));
620}
621
1d041bec 622static void
c5121837
JM		 623bsd_new_sta(struct bsd_driver_data *drv, u8 addr[IEEE80211_ADDR_LEN])
624{
625 struct hostapd_data *hapd = drv->hapd;
626 struct ieee80211req_wpaie ie;
627 int ielen = 0;
628 u8 *iebuf = NULL;
629
630 /*
631 * Fetch and validate any negotiated WPA/RSN parameters.
632 */
633 memset(&ie, 0, sizeof(ie));
634 memcpy(ie.wpa_macaddr, addr, IEEE80211_ADDR_LEN);
635 if (get80211var(drv, IEEE80211_IOC_WPAIE, &ie, sizeof(ie)) < 0) {
636 printf("Failed to get WPA/RSN information element.\n");
637 goto no_ie;
638 }
639 iebuf = ie.wpa_ie;
640 ielen = ie.wpa_ie[1];
641 if (ielen == 0)
642 iebuf = NULL;
643 else
644 ielen += 2;
645
646no_ie:
1d041bec 647 drv_event_assoc(hapd, addr, iebuf, ielen);
c5121837
JM		 648}
649
c5121837
JM		 650static void
651bsd_wireless_event_receive(int sock, void *ctx, void *sock_ctx)
652{
653 struct bsd_driver_data *drv = ctx;
c5121837
JM		 654 char buf[2048];
655 struct if_announcemsghdr *ifan;
656 struct rt_msghdr *rtm;
657 struct ieee80211_michael_event *mic;
658 struct ieee80211_join_event *join;
659 struct ieee80211_leave_event *leave;
660 int n;
1cd973d5 661 union wpa_event_data data;
c5121837
JM		 662
663 n = read(sock, buf, sizeof(buf));
664 if (n < 0) {
665 if (errno != EINTR && errno != EAGAIN)
666 perror("read(PF_ROUTE)");
667 return;
668 }
669
670 rtm = (struct rt_msghdr *) buf;
671 if (rtm->rtm_version != RTM_VERSION) {
672 wpa_printf(MSG_DEBUG, "Routing message version %d not "
673 "understood\n", rtm->rtm_version);
674 return;
675 }
676 ifan = (struct if_announcemsghdr *) rtm;
677 switch (rtm->rtm_type) {
678 case RTM_IEEE80211:
679 switch (ifan->ifan_what) {
680 case RTM_IEEE80211_ASSOC:
681 case RTM_IEEE80211_REASSOC:
682 case RTM_IEEE80211_DISASSOC:
683 case RTM_IEEE80211_SCAN:
684 break;
685 case RTM_IEEE80211_LEAVE:
686 leave = (struct ieee80211_leave_event *) &ifan[1];
69378b79 687 drv_event_disassoc(drv->hapd, leave->iev_addr);
c5121837
JM		 688 break;
689 case RTM_IEEE80211_JOIN:
690#ifdef RTM_IEEE80211_REJOIN
691 case RTM_IEEE80211_REJOIN:
692#endif
693 join = (struct ieee80211_join_event *) &ifan[1];
694 bsd_new_sta(drv, join->iev_addr);
695 break;
696 case RTM_IEEE80211_REPLAY:
697 /* ignore */
698 break;
699 case RTM_IEEE80211_MICHAEL:
700 mic = (struct ieee80211_michael_event *) &ifan[1];
701 wpa_printf(MSG_DEBUG,
702 "Michael MIC failure wireless event: "
703 "keyix=%u src_addr=" MACSTR, mic->iev_keyix,
704 MAC2STR(mic->iev_src));
1cd973d5
JM		 705 os_memset(&data, 0, sizeof(data));
706 data.michael_mic_failure.unicast = 1;
707 data.michael_mic_failure.src = mic->iev_src;
708 wpa_supplicant_event(drv->hapd,
709 EVENT_MICHAEL_MIC_FAILURE, &data);
c5121837
JM		 710 break;
711 }
712 break;
713 }
714}
715
716static int
717bsd_wireless_event_init(struct bsd_driver_data *drv)
718{
719 int s;
720
721 drv->wext_sock = -1;
722
723 s = socket(PF_ROUTE, SOCK_RAW, 0);
724 if (s < 0) {
725 perror("socket(PF_ROUTE,SOCK_RAW)");
726 return -1;
727 }
728 eloop_register_read_sock(s, bsd_wireless_event_receive, drv, NULL);
729 drv->wext_sock = s;
730
731 return 0;
732}
733
734static void
735bsd_wireless_event_deinit(struct bsd_driver_data *drv)
736{
737 if (drv->wext_sock < 0)
738 return;
739 eloop_unregister_read_sock(drv->wext_sock);
740 close(drv->wext_sock);
741}
742
743
744static int
745bsd_send_eapol(void *priv, const u8 *addr, const u8 *data, size_t data_len,
746 int encrypt, const u8 *own_addr)
747{
748 struct bsd_driver_data *drv = priv;
11386396 749 unsigned char *bp;
c5121837
JM		 750 struct l2_ethhdr *eth;
751 size_t len;
752 int status;
753
754 /*
11386396 755 * Prepend the Ethernet header. If the caller left us
c5121837
JM		 756 * space at the front we could just insert it but since
757 * we don't know we copy to a local buffer. Given the frequency
758 * and size of frames this probably doesn't matter.
759 */
760 len = data_len + sizeof(struct l2_ethhdr);
11386396
MH		 761 bp = os_zalloc(len);
762 if (bp == NULL) {
763 wpa_printf(MSG_ERROR, "malloc() failed for bsd_send_eapol"
764 "(len=%lu)", (unsigned long) len);
765 return -1;
c5121837
JM		 766 }
767 eth = (struct l2_ethhdr *) bp;
11386396
MH		 768 os_memcpy(eth->h_dest, addr, ETH_ALEN);
769 os_memcpy(eth->h_source, own_addr, ETH_ALEN);
c5121837 770 eth->h_proto = htons(ETH_P_EAPOL);
11386396 771 os_memcpy(eth + 1, data, data_len);
c5121837
JM		 772
773 wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", bp, len);
774
775 status = l2_packet_send(drv->sock_xmit, addr, ETH_P_EAPOL, bp, len);
776
11386396 777 os_free(bp);
c5121837
JM		 778 return status;
779}
780
781static void
782handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
783{
784 struct bsd_driver_data *drv = ctx;
baac6490
JM		 785 drv_event_eapol_rx(drv->hapd, src_addr, buf + sizeof(struct l2_ethhdr),
786 len - sizeof(struct l2_ethhdr));
c5121837
JM		 787}
788
789static int
66d4085f 790hostapd_bsd_get_ssid(const char *ifname, void *priv, u8 *buf, int len)
c5121837
JM		 791{
792 struct bsd_driver_data *drv = priv;
66d4085f 793 int ssid_len;
c5121837 794
66d4085f 795 ssid_len = bsd_get_ssid(drv->ioctl_sock, drv->iface, buf);
c5121837
JM		 796 wpa_printf(MSG_DEBUG, "%s: ssid=\"%.*s\"", __func__, ssid_len, buf);
797
798 return ssid_len;
799}
800
801static int
66d4085f 802hostapd_bsd_set_ssid(const char *ifname, void *priv, const u8 *buf, int len)
c5121837
JM		 803{
804 struct bsd_driver_data *drv = priv;
805
806 wpa_printf(MSG_DEBUG, "%s: ssid=\"%.*s\"", __func__, len, buf);
807
66d4085f 808 return bsd_set_ssid(drv->ioctl_sock, drv->iface, buf, len);
c5121837
JM		 809}
810
5197244a
MH		 811static int
812bsd_set_freq(void *priv, struct hostapd_freq_params *freq)
813{
814 struct bsd_driver_data *drv = priv;
815 struct ieee80211chanreq creq;
816 uint32_t mode;
817
818 if (freq->channel < 14)
819 mode = IFM_IEEE80211_11G;
820 else if (freq->channel == 14)
821 mode = IFM_IEEE80211_11B;
822 else
823 mode = IFM_IEEE80211_11A;
824 if (bsd_set_mediaopt(drv->ioctl_sock, drv->iface, IFM_MMASK,
825 mode) < 0) {
826 wpa_printf(MSG_ERROR, "%s: failed to set modulation mode",
827 __func__);
828 return -1;
829 }
830
831 os_memset(&creq, 0, sizeof(creq));
832 os_strlcpy(creq.i_name, drv->iface, sizeof(creq.i_name));
833 creq.i_channel = freq->channel;
834 return ioctl(drv->ioctl_sock, SIOCS80211CHANNEL, &creq);
835}
836
c5121837 837static void *
92f475b4 838bsd_init(struct hostapd_data *hapd, struct wpa_init_params *params)
c5121837
JM		 839{
840 struct bsd_driver_data *drv;
841
842 drv = os_zalloc(sizeof(struct bsd_driver_data));
843 if (drv == NULL) {
844 printf("Could not allocate memory for bsd driver data\n");
845 goto bad;
846 }
847
848 drv->hapd = hapd;
849 drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
850 if (drv->ioctl_sock < 0) {
851 perror("socket[PF_INET,SOCK_DGRAM]");
852 goto bad;
853 }
412036f5 854 memcpy(drv->iface, params->ifname, sizeof(drv->iface));
c5121837
JM		 855
856 drv->sock_xmit = l2_packet_init(drv->iface, NULL, ETH_P_EAPOL,
857 handle_read, drv, 1);
858 if (drv->sock_xmit == NULL)
859 goto bad;
412036f5 860 if (l2_packet_get_own_addr(drv->sock_xmit, params->own_addr))
c5121837
JM		 861 goto bad;
862
863 bsd_set_iface_flags(drv, 0); /* mark down during setup */
864 if (bsd_wireless_event_init(drv))
865 goto bad;
866
5197244a
MH		 867 if (bsd_set_mediaopt(drv->ioctl_sock, drv->iface, IFM_OMASK,
868 IFM_IEEE80211_HOSTAP) < 0) {
869 wpa_printf(MSG_ERROR, "%s: failed to set operation mode",
870 __func__);
871 goto bad;
872 }
873
c5121837
JM		 874 return drv;
875bad:
876 if (drv->sock_xmit != NULL)
877 l2_packet_deinit(drv->sock_xmit);
878 if (drv->ioctl_sock >= 0)
879 close(drv->ioctl_sock);
880 if (drv != NULL)
82f36163 881 os_free(drv);
c5121837
JM		 882 return NULL;
883}
884
885
886static void
887bsd_deinit(void *priv)
888{
889 struct bsd_driver_data *drv = priv;
890
891 bsd_wireless_event_deinit(drv);
892 (void) bsd_set_iface_flags(drv, 0);
893 if (drv->ioctl_sock >= 0)
894 close(drv->ioctl_sock);
895 if (drv->sock_xmit != NULL)
896 l2_packet_deinit(drv->sock_xmit);
82f36163 897 os_free(drv);
c5121837
JM		 898}
899
900const struct wpa_driver_ops wpa_driver_bsd_ops = {
901 .name = "bsd",
902 .hapd_init = bsd_init,
903 .hapd_deinit = bsd_deinit,
904 .set_ieee8021x = bsd_set_ieee8021x,
905 .set_privacy = bsd_set_privacy,
642187d6 906 .set_key = bsd_set_key,
c5121837
JM		 907 .get_seqnum = bsd_get_seqnum,
908 .flush = bsd_flush,
909 .set_generic_elem = bsd_set_opt_ie,
910 .sta_set_flags = bsd_sta_set_flags,
911 .read_sta_data = bsd_read_sta_driver_data,
912 .hapd_send_eapol = bsd_send_eapol,
913 .sta_disassoc = bsd_sta_disassoc,
914 .sta_deauth = bsd_sta_deauth,
66d4085f
RM		 915 .hapd_set_ssid = hostapd_bsd_set_ssid,
916 .hapd_get_ssid = hostapd_bsd_get_ssid,
5197244a 917 .set_freq = bsd_set_freq,
c5121837
JM		 918};
919
920#else /* HOSTAPD */
921
6fc6879b
JM		 922struct wpa_driver_bsd_data {
923 int sock; /* open socket for 802.11 ioctls */
924 int route; /* routing socket for events */
925 char ifname[IFNAMSIZ+1]; /* interface name */
926 unsigned int ifindex; /* interface index */
927 void *ctx;
928 int prev_roaming; /* roaming state to restore on deinit */
929 int prev_privacy; /* privacy state to restore on deinit */
930 int prev_wpa; /* wpa state to restore on deinit */
931};
932
933static int
934set80211var(struct wpa_driver_bsd_data *drv, int op, const void *arg, int arg_len)
935{
66d4085f 936 return bsd_set80211var(drv->sock, drv->ifname, op, arg, arg_len);
6fc6879b
JM		 937}
938
939static int
940get80211var(struct wpa_driver_bsd_data *drv, int op, void *arg, int arg_len)
941{
66d4085f 942 return bsd_get80211var(drv->sock, drv->ifname, op, arg, arg_len);
6fc6879b
JM		 943}
944
945static int
946set80211param(struct wpa_driver_bsd_data *drv, int op, int arg)
947{
66d4085f 948 return bsd_set80211param(drv->sock, drv->ifname, op, arg);
6fc6879b
JM		 949}
950
951static int
952get80211param(struct wpa_driver_bsd_data *drv, int op)
953{
954 struct ieee80211req ireq;
955
956 os_memset(&ireq, 0, sizeof(ireq));
66d4085f 957 os_strlcpy(ireq.i_name, drv->ifname, sizeof(ireq.i_name));
6fc6879b
JM		 958 ireq.i_type = op;
959
960 if (ioctl(drv->sock, SIOCG80211, &ireq) < 0) {
961 fprintf(stderr, "ioctl[SIOCG80211, op %u]: %s\n",
962 op, strerror(errno));
963 return -1;
964 }
965 return ireq.i_val;
966}
967
968static int
969getifflags(struct wpa_driver_bsd_data *drv, int *flags)
970{
971 struct ifreq ifr;
972
973 os_memset(&ifr, 0, sizeof(ifr));
974 os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
975 if (ioctl(drv->sock, SIOCGIFFLAGS, (caddr_t)&ifr) < 0) {
976 perror("SIOCGIFFLAGS");
977 return errno;
978 }
979 *flags = ifr.ifr_flags & 0xffff;
980 return 0;
981}
982
983static int
984setifflags(struct wpa_driver_bsd_data *drv, int flags)
985{
986 struct ifreq ifr;
987
988 os_memset(&ifr, 0, sizeof(ifr));
989 os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
990 ifr.ifr_flags = flags & 0xffff;
991 if (ioctl(drv->sock, SIOCSIFFLAGS, (caddr_t)&ifr) < 0) {
992 perror("SIOCSIFFLAGS");
993 return errno;
994 }
995 return 0;
996}
997
998static int
999wpa_driver_bsd_get_bssid(void *priv, u8 *bssid)
1000{
1001 struct wpa_driver_bsd_data *drv = priv;
66d4085f 1002#ifdef SIOCG80211BSSID
a65f4a57 1003 struct ieee80211_bssid bs;
6fc6879b 1004
a65f4a57
MH		 1005 os_strncpy(bs.i_name, drv->ifname, sizeof(bs.i_name));
1006 if (ioctl(drv->sock, SIOCG80211BSSID, &bs) < 0)
1007 return -1;
1008 os_memcpy(bssid, bs.i_bssid, sizeof(bs.i_bssid));
1009 return 0;
1010#else
6fc6879b
JM		 1011 return get80211var(drv, IEEE80211_IOC_BSSID,
1012 bssid, IEEE80211_ADDR_LEN) < 0 ? -1 : 0;
a65f4a57 1013#endif
6fc6879b
JM		 1014}
1015
1016#if 0
1017static int
1018wpa_driver_bsd_set_bssid(void *priv, const char *bssid)
1019{
1020 struct wpa_driver_bsd_data *drv = priv;
1021
1022 return set80211var(drv, IEEE80211_IOC_BSSID,
1023 bssid, IEEE80211_ADDR_LEN);
1024}
1025#endif
1026
1027static int
1028wpa_driver_bsd_get_ssid(void *priv, u8 *ssid)
1029{
1030 struct wpa_driver_bsd_data *drv = priv;
1031
66d4085f 1032 return bsd_get_ssid(drv->sock, drv->ifname, ssid);
6fc6879b
JM		 1033}
1034
1035static int
4df91b3f 1036wpa_driver_bsd_set_ssid(void *priv, const u8 *ssid,
6fc6879b
JM		 1037 size_t ssid_len)
1038{
1039 struct wpa_driver_bsd_data *drv = priv;
1040
66d4085f 1041 return bsd_set_ssid(drv->sock, drv->ifname, ssid, ssid_len);
6fc6879b
JM		 1042}
1043
1044static int
1045wpa_driver_bsd_set_wpa_ie(struct wpa_driver_bsd_data *drv,
4df91b3f 1046 const u8 *wpa_ie, size_t wpa_ie_len)
6fc6879b 1047{
c610dba1
MH		 1048#ifdef IEEE80211_IOC_APPIE
1049 return set80211var(drv, IEEE80211_IOC_APPIE, wpa_ie, wpa_ie_len);
1050#else /* IEEE80211_IOC_APPIE */
6fc6879b 1051 return set80211var(drv, IEEE80211_IOC_OPTIE, wpa_ie, wpa_ie_len);
c610dba1 1052#endif /* IEEE80211_IOC_APPIE */
6fc6879b
JM		 1053}
1054
1055static int
1056wpa_driver_bsd_set_wpa_internal(void *priv, int wpa, int privacy)
1057{
1058 struct wpa_driver_bsd_data *drv = priv;
1059 int ret = 0;
1060
1061 wpa_printf(MSG_DEBUG, "%s: wpa=%d privacy=%d",
1062 __FUNCTION__, wpa, privacy);
1063
1064 if (!wpa && wpa_driver_bsd_set_wpa_ie(drv, NULL, 0) < 0)
1065 ret = -1;
1066 if (set80211param(drv, IEEE80211_IOC_PRIVACY, privacy) < 0)
1067 ret = -1;
1068 if (set80211param(drv, IEEE80211_IOC_WPA, wpa) < 0)
1069 ret = -1;
1070
1071 return ret;
1072}
1073
1074static int
1075wpa_driver_bsd_set_wpa(void *priv, int enabled)
1076{
1077 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
1078
1079 return wpa_driver_bsd_set_wpa_internal(priv, enabled ? 3 : 0, enabled);
1080}
1081
6fc6879b 1082static int
71934751 1083wpa_driver_bsd_set_key(const char *ifname, void *priv, enum wpa_alg alg,
6fc6879b
JM		 1084 const unsigned char *addr, int key_idx, int set_tx,
1085 const u8 *seq, size_t seq_len,
1086 const u8 *key, size_t key_len)
1087{
1088 struct wpa_driver_bsd_data *drv = priv;
1089 struct ieee80211req_key wk;
1090 struct ether_addr ea;
1091 char *alg_name;
1092 u_int8_t cipher;
1093
1094 if (alg == WPA_ALG_NONE)
cbdecd2b
MH		 1095 return bsd_del_key(drv->sock, drv->ifname,
1096 os_memcmp(addr, "\xff\xff\xff\xff\xff\xff",
1097 IEEE80211_ADDR_LEN) == 0 ? NULL : addr,
1098 key_idx);
6fc6879b
JM		 1099
1100 switch (alg) {
1101 case WPA_ALG_WEP:
1102 alg_name = "WEP";
1103 cipher = IEEE80211_CIPHER_WEP;
1104 break;
1105 case WPA_ALG_TKIP:
1106 alg_name = "TKIP";
1107 cipher = IEEE80211_CIPHER_TKIP;
1108 break;
1109 case WPA_ALG_CCMP:
1110 alg_name = "CCMP";
1111 cipher = IEEE80211_CIPHER_AES_CCM;
1112 break;
1113 default:
1114 wpa_printf(MSG_DEBUG, "%s: unknown/unsupported algorithm %d",
1115 __func__, alg);
1116 return -1;
1117 }
1118
1119 os_memcpy(&ea, addr, IEEE80211_ADDR_LEN);
1120 wpa_printf(MSG_DEBUG,
1121 "%s: alg=%s addr=%s key_idx=%d set_tx=%d seq_len=%zu key_len=%zu",
1122 __func__, alg_name, ether_ntoa(&ea), key_idx, set_tx,
1123 seq_len, key_len);
1124
1125 if (seq_len > sizeof(u_int64_t)) {
1126 wpa_printf(MSG_DEBUG, "%s: seq_len %zu too big",
1127 __func__, seq_len);
1128 return -2;
1129 }
1130 if (key_len > sizeof(wk.ik_keydata)) {
1131 wpa_printf(MSG_DEBUG, "%s: key length %zu too big",
1132 __func__, key_len);
1133 return -3;
1134 }
1135
1136 os_memset(&wk, 0, sizeof(wk));
1137 wk.ik_type = cipher;
1138 wk.ik_flags = IEEE80211_KEY_RECV;
1139 if (set_tx)
1140 wk.ik_flags |= IEEE80211_KEY_XMIT;
1141 os_memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
1142 /*
1143 * Deduce whether group/global or unicast key by checking
1144 * the address (yech). Note also that we can only mark global
1145 * keys default; doing this for a unicast key is an error.
1146 */
1147 if (bcmp(addr, "\xff\xff\xff\xff\xff\xff", IEEE80211_ADDR_LEN) == 0) {
1148 wk.ik_flags |= IEEE80211_KEY_GROUP;
1149 wk.ik_keyix = key_idx;
1150 } else {
1151 wk.ik_keyix = (key_idx == 0 ? IEEE80211_KEYIX_NONE : key_idx);
1152 }
1153 if (wk.ik_keyix != IEEE80211_KEYIX_NONE && set_tx)
1154 wk.ik_flags |= IEEE80211_KEY_DEFAULT;
1155 wk.ik_keylen = key_len;
1156 os_memcpy(&wk.ik_keyrsc, seq, seq_len);
1157 os_memcpy(wk.ik_keydata, key, key_len);
1158
1159 return set80211var(drv, IEEE80211_IOC_WPAKEY, &wk, sizeof(wk));
1160}
1161
1162static int
1163wpa_driver_bsd_set_countermeasures(void *priv, int enabled)
1164{
1165 struct wpa_driver_bsd_data *drv = priv;
1166
1167 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
1168 return set80211param(drv, IEEE80211_IOC_COUNTERMEASURES, enabled);
1169}
1170
1171
1172static int
1173wpa_driver_bsd_set_drop_unencrypted(void *priv, int enabled)
1174{
1175 struct wpa_driver_bsd_data *drv = priv;
1176
1177 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
1178 return set80211param(drv, IEEE80211_IOC_DROPUNENCRYPTED, enabled);
1179}
1180
1181static int
1182wpa_driver_bsd_deauthenticate(void *priv, const u8 *addr, int reason_code)
1183{
1184 struct wpa_driver_bsd_data *drv = priv;
1185 struct ieee80211req_mlme mlme;
1186
1187 wpa_printf(MSG_DEBUG, "%s", __func__);
1188 os_memset(&mlme, 0, sizeof(mlme));
1189 mlme.im_op = IEEE80211_MLME_DEAUTH;
1190 mlme.im_reason = reason_code;
1191 os_memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
1192 return set80211var(drv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme));
1193}
1194
1195static int
1196wpa_driver_bsd_disassociate(void *priv, const u8 *addr, int reason_code)
1197{
1198 struct wpa_driver_bsd_data *drv = priv;
1199 struct ieee80211req_mlme mlme;
1200
1201 wpa_printf(MSG_DEBUG, "%s", __func__);
1202 os_memset(&mlme, 0, sizeof(mlme));
1203 mlme.im_op = IEEE80211_MLME_DISASSOC;
1204 mlme.im_reason = reason_code;
1205 os_memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
1206 return set80211var(drv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme));
1207}
1208
2a91091e
MH		 1209static int
1210wpa_driver_bsd_set_auth_alg(void *priv, int auth_alg)
1211{
1212 struct wpa_driver_bsd_data *drv = priv;
1213 int authmode;
1214
abd9fafa
JM		 1215 if ((auth_alg & WPA_AUTH_ALG_OPEN) &&
1216 (auth_alg & WPA_AUTH_ALG_SHARED))
2a91091e 1217 authmode = IEEE80211_AUTH_AUTO;
abd9fafa 1218 else if (auth_alg & WPA_AUTH_ALG_SHARED)
2a91091e
MH		 1219 authmode = IEEE80211_AUTH_SHARED;
1220 else
1221 authmode = IEEE80211_AUTH_OPEN;
1222
1223 return set80211param(drv, IEEE80211_IOC_AUTHMODE, authmode);
1224}
1225
6fc6879b
JM		 1226static int
1227wpa_driver_bsd_associate(void *priv, struct wpa_driver_associate_params *params)
1228{
1229 struct wpa_driver_bsd_data *drv = priv;
1230 struct ieee80211req_mlme mlme;
1231 int privacy;
4a867032 1232 int ret = 0;
6fc6879b
JM		 1233
1234 wpa_printf(MSG_DEBUG,
1235 "%s: ssid '%.*s' wpa ie len %u pairwise %u group %u key mgmt %u"
1236 , __func__
92e63aaf
JM		 1237 , (unsigned int) params->ssid_len, params->ssid
1238 , (unsigned int) params->wpa_ie_len
6fc6879b
JM		 1239 , params->pairwise_suite
1240 , params->group_suite
1241 , params->key_mgmt_suite
1242 );
1243
4a867032
JM		 1244 if (wpa_driver_bsd_set_drop_unencrypted(drv, params->drop_unencrypted)
1245 < 0)
1246 ret = -1;
1247 if (wpa_driver_bsd_set_auth_alg(drv, params->auth_alg) < 0)
1248 ret = -1;
6fc6879b
JM		 1249 /* XXX error handling is wrong but unclear what to do... */
1250 if (wpa_driver_bsd_set_wpa_ie(drv, params->wpa_ie, params->wpa_ie_len) < 0)
1251 return -1;
6fc6879b
JM		 1252
1253 privacy = !(params->pairwise_suite == CIPHER_NONE &&
1254 params->group_suite == CIPHER_NONE &&
1255 params->key_mgmt_suite == KEY_MGMT_NONE &&
1256 params->wpa_ie_len == 0);
1257 wpa_printf(MSG_DEBUG, "%s: set PRIVACY %u", __func__, privacy);
1258
1259 if (set80211param(drv, IEEE80211_IOC_PRIVACY, privacy) < 0)
1260 return -1;
1261
1262 if (params->wpa_ie_len &&
1263 set80211param(drv, IEEE80211_IOC_WPA,
1264 params->wpa_ie[0] == WLAN_EID_RSN ? 2 : 1) < 0)
1265 return -1;
1266
1267 os_memset(&mlme, 0, sizeof(mlme));
1268 mlme.im_op = IEEE80211_MLME_ASSOC;
6fc6879b
JM		 1269 if (params->ssid != NULL)
1270 os_memcpy(mlme.im_ssid, params->ssid, params->ssid_len);
1271 mlme.im_ssid_len = params->ssid_len;
6fc6879b
JM		 1272 if (params->bssid != NULL)
1273 os_memcpy(mlme.im_macaddr, params->bssid, IEEE80211_ADDR_LEN);
1274 if (set80211var(drv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme)) < 0)
1275 return -1;
4a867032 1276 return ret;
6fc6879b
JM		 1277}
1278
6fc6879b 1279static int
c2e8d0a0 1280wpa_driver_bsd_scan(void *priv, struct wpa_driver_scan_params *params)
6fc6879b
JM		 1281{
1282 struct wpa_driver_bsd_data *drv = priv;
1283 int flags;
c2e8d0a0
JM		 1284 const u8 *ssid = params->ssids[0].ssid;
1285 size_t ssid_len = params->ssids[0].ssid_len;
6fc6879b
JM		 1286
1287 /* NB: interface must be marked UP to do a scan */
1288 if (getifflags(drv, &flags) != 0 || setifflags(drv, flags | IFF_UP) != 0)
1289 return -1;
1290
1291 /* set desired ssid before scan */
1292 if (wpa_driver_bsd_set_ssid(drv, ssid, ssid_len) < 0)
1293 return -1;
1294
1295 /* NB: net80211 delivers a scan complete event so no need to poll */
1296 return set80211param(drv, IEEE80211_IOC_SCAN_REQ, 0);
1297}
1298
6fc6879b
JM		 1299static void
1300wpa_driver_bsd_event_receive(int sock, void *ctx, void *sock_ctx)
1301{
1302 struct wpa_driver_bsd_data *drv = sock_ctx;
1303 char buf[2048];
1304 struct if_announcemsghdr *ifan;
1305 struct if_msghdr *ifm;
1306 struct rt_msghdr *rtm;
1307 union wpa_event_data event;
1308 struct ieee80211_michael_event *mic;
1309 int n;
1310
1311 n = read(sock, buf, sizeof(buf));
1312 if (n < 0) {
1313 if (errno != EINTR && errno != EAGAIN)
1314 perror("read(PF_ROUTE)");
1315 return;
1316 }
1317
1318 rtm = (struct rt_msghdr *) buf;
1319 if (rtm->rtm_version != RTM_VERSION) {
1320 wpa_printf(MSG_DEBUG, "Routing message version %d not "
1321 "understood\n", rtm->rtm_version);
1322 return;
1323 }
1324 os_memset(&event, 0, sizeof(event));
1325 switch (rtm->rtm_type) {
1326 case RTM_IFANNOUNCE:
1327 ifan = (struct if_announcemsghdr *) rtm;
1328 if (ifan->ifan_index != drv->ifindex)
1329 break;
1330 strlcpy(event.interface_status.ifname, drv->ifname,
1331 sizeof(event.interface_status.ifname));
1332 switch (ifan->ifan_what) {
1333 case IFAN_DEPARTURE:
1334 event.interface_status.ievent = EVENT_INTERFACE_REMOVED;
1335 default:
1336 return;
1337 }
1338 wpa_printf(MSG_DEBUG, "RTM_IFANNOUNCE: Interface '%s' %s",
1339 event.interface_status.ifname,
1340 ifan->ifan_what == IFAN_DEPARTURE ?
1341 "removed" : "added");
1342 wpa_supplicant_event(ctx, EVENT_INTERFACE_STATUS, &event);
1343 break;
1344 case RTM_IEEE80211:
1345 ifan = (struct if_announcemsghdr *) rtm;
1346 if (ifan->ifan_index != drv->ifindex)
1347 break;
1348 switch (ifan->ifan_what) {
1349 case RTM_IEEE80211_ASSOC:
1350 case RTM_IEEE80211_REASSOC:
1351 wpa_supplicant_event(ctx, EVENT_ASSOC, NULL);
1352 break;
1353 case RTM_IEEE80211_DISASSOC:
1354 wpa_supplicant_event(ctx, EVENT_DISASSOC, NULL);
1355 break;
1356 case RTM_IEEE80211_SCAN:
1357 wpa_supplicant_event(ctx, EVENT_SCAN_RESULTS, NULL);
1358 break;
1359 case RTM_IEEE80211_REPLAY:
1360 /* ignore */
1361 break;
1362 case RTM_IEEE80211_MICHAEL:
1363 mic = (struct ieee80211_michael_event *) &ifan[1];
1364 wpa_printf(MSG_DEBUG,
1365 "Michael MIC failure wireless event: "
1366 "keyix=%u src_addr=" MACSTR, mic->iev_keyix,
1367 MAC2STR(mic->iev_src));
1368
1369 os_memset(&event, 0, sizeof(event));
1370 event.michael_mic_failure.unicast =
1371 !IEEE80211_IS_MULTICAST(mic->iev_dst);
1372 wpa_supplicant_event(ctx, EVENT_MICHAEL_MIC_FAILURE,
1373 &event);
1374 break;
1375 }
1376 break;
1377 case RTM_IFINFO:
1378 ifm = (struct if_msghdr *) rtm;
1379 if (ifm->ifm_index != drv->ifindex)
1380 break;
1381 if ((rtm->rtm_flags & RTF_UP) == 0) {
1382 strlcpy(event.interface_status.ifname, drv->ifname,
1383 sizeof(event.interface_status.ifname));
1384 event.interface_status.ievent = EVENT_INTERFACE_REMOVED;
1385 wpa_printf(MSG_DEBUG, "RTM_IFINFO: Interface '%s' DOWN",
1386 event.interface_status.ifname);
1387 wpa_supplicant_event(ctx, EVENT_INTERFACE_STATUS, &event);
1388 }
1389 break;
1390 }
1391}
1392
a65f4a57
MH		 1393static void
1394wpa_driver_bsd_add_scan_entry(struct wpa_scan_results *res,
1395 struct ieee80211req_scan_result *sr)
6fc6879b 1396{
a65f4a57
MH		 1397 struct wpa_scan_res *result, **tmp;
1398 size_t extra_len;
1399 u8 *pos;
6fc6879b 1400
a65f4a57
MH		 1401 extra_len = 2 + sr->isr_ssid_len;
1402 extra_len += 2 + sr->isr_nrates;
1403 extra_len += 3; /* ERP IE */
1404 extra_len += sr->isr_ie_len;
6fc6879b 1405
a65f4a57
MH		 1406 result = os_zalloc(sizeof(*result) + extra_len);
1407 if (result == NULL)
1408 return;
1409 os_memcpy(result->bssid, sr->isr_bssid, ETH_ALEN);
1410 result->freq = sr->isr_freq;
1411 result->beacon_int = sr->isr_intval;
1412 result->caps = sr->isr_capinfo;
1413 result->qual = sr->isr_rssi;
1414 result->noise = sr->isr_noise;
6fc6879b 1415
a65f4a57 1416 pos = (u8 *)(result + 1);
6fc6879b 1417
a65f4a57
MH		 1418 *pos++ = WLAN_EID_SSID;
1419 *pos++ = sr->isr_ssid_len;
1420 os_memcpy(pos, sr + 1, sr->isr_ssid_len);
1421 pos += sr->isr_ssid_len;
6fc6879b 1422
a65f4a57
MH		 1423 /*
1424 * Deal all rates as supported rate.
1425 * Because net80211 doesn't report extended supported rate or not.
1426 */
1427 *pos++ = WLAN_EID_SUPP_RATES;
1428 *pos++ = sr->isr_nrates;
1429 os_memcpy(pos, sr->isr_rates, sr->isr_nrates);
1430 pos += sr->isr_nrates;
6fc6879b 1431
a65f4a57
MH		 1432 *pos++ = WLAN_EID_ERP_INFO;
1433 *pos++ = 1;
1434 *pos++ = sr->isr_erp;
6fc6879b 1435
a65f4a57
MH		 1436 os_memcpy(pos, (u8 *)(sr + 1) + sr->isr_ssid_len, sr->isr_ie_len);
1437 pos += sr->isr_ie_len;
6fc6879b 1438
a65f4a57
MH		 1439 result->ie_len = pos - (u8 *)(result + 1);
1440
1441 tmp = os_realloc(res->res,
1442 (res->num + 1) * sizeof(struct wpa_scan_res *));
1443 if (tmp == NULL) {
1444 os_free(result);
1445 return;
1446 }
1447 tmp[res->num++] = result;
1448 res->res = tmp;
6fc6879b
JM		 1449}
1450
a65f4a57
MH		 1451struct wpa_scan_results *
1452wpa_driver_bsd_get_scan_results2(void *priv)
6fc6879b 1453{
6fc6879b 1454 struct wpa_driver_bsd_data *drv = priv;
6fc6879b 1455 struct ieee80211req_scan_result *sr;
a65f4a57
MH		 1456 struct wpa_scan_results *res;
1457 int len, rest;
1458 uint8_t buf[24*1024], *pos;
6fc6879b 1459
a65f4a57 1460 len = get80211var(drv, IEEE80211_IOC_SCAN_RESULTS, buf, 24*1024);
6fc6879b 1461 if (len < 0)
a65f4a57
MH		 1462 return NULL;
1463
1464 res = os_zalloc(sizeof(*res));
1465 if (res == NULL)
1466 return NULL;
6fc6879b 1467
a65f4a57
MH		 1468 pos = buf;
1469 rest = len;
1470 while (rest >= sizeof(struct ieee80211req_scan_result)) {
1471 sr = (struct ieee80211req_scan_result *)pos;
1472 wpa_driver_bsd_add_scan_entry(res, sr);
1473 pos += sr->isr_len;
1474 rest -= sr->isr_len;
6fc6879b 1475 }
6fc6879b 1476
a65f4a57
MH		 1477 wpa_printf(MSG_DEBUG, "Received %d bytes of scan results (%lu BSSes)",
1478 len, (unsigned long)res->num);
6fc6879b 1479
a65f4a57 1480 return res;
6fc6879b
JM		 1481}
1482
1483static void *
1484wpa_driver_bsd_init(void *ctx, const char *ifname)
1485{
1486#define GETPARAM(drv, param, v) \
1487 (((v) = get80211param(drv, param)) != -1)
1488 struct wpa_driver_bsd_data *drv;
1489
1490 drv = os_zalloc(sizeof(*drv));
1491 if (drv == NULL)
1492 return NULL;
1493 /*
1494 * NB: We require the interface name be mappable to an index.
1495 * This implies we do not support having wpa_supplicant
1496 * wait for an interface to appear. This seems ok; that
1497 * doesn't belong here; it's really the job of devd.
1498 */
1499 drv->ifindex = if_nametoindex(ifname);
1500 if (drv->ifindex == 0) {
1501 wpa_printf(MSG_DEBUG, "%s: interface %s does not exist",
1502 __func__, ifname);
1503 goto fail1;
1504 }
1505 drv->sock = socket(PF_INET, SOCK_DGRAM, 0);
1506 if (drv->sock < 0)
1507 goto fail1;
1508 drv->route = socket(PF_ROUTE, SOCK_RAW, 0);
1509 if (drv->route < 0)
1510 goto fail;
1511 eloop_register_read_sock(drv->route,
1512 wpa_driver_bsd_event_receive, ctx, drv);
1513
1514 drv->ctx = ctx;
1515 os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
1516
1517 if (!GETPARAM(drv, IEEE80211_IOC_ROAMING, drv->prev_roaming)) {
1518 wpa_printf(MSG_DEBUG, "%s: failed to get roaming state: %s",
1519 __func__, strerror(errno));
1520 goto fail;
1521 }
1522 if (!GETPARAM(drv, IEEE80211_IOC_PRIVACY, drv->prev_privacy)) {
1523 wpa_printf(MSG_DEBUG, "%s: failed to get privacy state: %s",
1524 __func__, strerror(errno));
1525 goto fail;
1526 }
1527 if (!GETPARAM(drv, IEEE80211_IOC_WPA, drv->prev_wpa)) {
1528 wpa_printf(MSG_DEBUG, "%s: failed to get wpa state: %s",
1529 __func__, strerror(errno));
1530 goto fail;
1531 }
5197244a
MH		 1532
1533 if (bsd_set_mediaopt(drv->sock, drv->ifname, IFM_OMASK,
1534 0 /* STA */) < 0) {
1535 wpa_printf(MSG_ERROR, "%s: failed to set operation mode",
1536 __func__);
1537 goto fail;
1538 }
6fc6879b
JM		 1539 if (set80211param(drv, IEEE80211_IOC_ROAMING, IEEE80211_ROAMING_MANUAL) < 0) {
1540 wpa_printf(MSG_DEBUG, "%s: failed to set wpa_supplicant-based "
1541 "roaming: %s", __func__, strerror(errno));
1542 goto fail;
1543 }
1544
1545 if (set80211param(drv, IEEE80211_IOC_WPA, 1+2) < 0) {
1546 wpa_printf(MSG_DEBUG, "%s: failed to enable WPA support %s",
1547 __func__, strerror(errno));
1548 goto fail;
1549 }
1550
4a867032
JM		 1551 wpa_driver_bsd_set_wpa(drv, 1);
1552
6fc6879b
JM		 1553 return drv;
1554fail:
1555 close(drv->sock);
1556fail1:
1557 os_free(drv);
1558 return NULL;
1559#undef GETPARAM
1560}
1561
1562static void
1563wpa_driver_bsd_deinit(void *priv)
1564{
1565 struct wpa_driver_bsd_data *drv = priv;
1566 int flags;
1567
4a867032 1568 wpa_driver_bsd_set_wpa(drv, 0);
6fc6879b
JM		 1569 eloop_unregister_read_sock(drv->route);
1570
1571 /* NB: mark interface down */
1572 if (getifflags(drv, &flags) == 0)
1573 (void) setifflags(drv, flags &~ IFF_UP);
1574
1575 wpa_driver_bsd_set_wpa_internal(drv, drv->prev_wpa, drv->prev_privacy);
1576 if (set80211param(drv, IEEE80211_IOC_ROAMING, drv->prev_roaming) < 0)
1577 wpa_printf(MSG_DEBUG, "%s: failed to restore roaming state",
1578 __func__);
1579
1580 (void) close(drv->route); /* ioctl socket */
1581 (void) close(drv->sock); /* event socket */
1582 os_free(drv);
1583}
1584
1585
1586const struct wpa_driver_ops wpa_driver_bsd_ops = {
1587 .name = "bsd",
66d4085f 1588 .desc = "BSD 802.11 support",
6fc6879b
JM		 1589 .init = wpa_driver_bsd_init,
1590 .deinit = wpa_driver_bsd_deinit,
1591 .get_bssid = wpa_driver_bsd_get_bssid,
1592 .get_ssid = wpa_driver_bsd_get_ssid,
6fc6879b
JM		 1593 .set_key = wpa_driver_bsd_set_key,
1594 .set_countermeasures = wpa_driver_bsd_set_countermeasures,
c2e8d0a0 1595 .scan2 = wpa_driver_bsd_scan,
a65f4a57 1596 .get_scan_results2 = wpa_driver_bsd_get_scan_results2,
6fc6879b
JM		 1597 .deauthenticate = wpa_driver_bsd_deauthenticate,
1598 .disassociate = wpa_driver_bsd_disassociate,
1599 .associate = wpa_driver_bsd_associate,
6fc6879b 1600};
c5121837
JM		 1601
1602#endif /* HOSTAPD */
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