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driver_bsd.c: Reduce code duplication (setkey)
[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
fa6b8afe
MH		 215static int
216bsd_send_mlme_param(int s, const char *ifname, const u8 op, const u16 reason,
217 const u8 *addr)
218{
219 struct ieee80211req_mlme mlme;
220
221 os_memset(&mlme, 0, sizeof(mlme));
222 mlme.im_op = op;
223 mlme.im_reason = reason;
224 os_memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
225 return bsd_set80211var(s, ifname, IEEE80211_IOC_MLME, &mlme,
226 sizeof(mlme));
227}
228
60bc3033
MH		 229static int
230bsd_ctrl_iface(int s, const char *ifname, int enable)
231{
232 struct ifreq ifr;
233
234 os_memset(&ifr, 0, sizeof(ifr));
235 os_strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
236
237 if (ioctl(s, SIOCGIFFLAGS, &ifr) < 0) {
238 perror("ioctl[SIOCGIFFLAGS]");
239 return -1;
240 }
241
242 if (enable)
243 ifr.ifr_flags |= IFF_UP;
244 else
245 ifr.ifr_flags &= ~IFF_UP;
246
247 if (ioctl(s, SIOCSIFFLAGS, &ifr) < 0) {
248 perror("ioctl[SIOCSIFFLAGS]");
249 return -1;
250 }
251
252 return 0;
253}
254
719196b1
MH		 255static int
256bsd_set_key(int s, const char *ifname, enum wpa_alg alg,
257 const unsigned char *addr, int key_idx, int set_tx, const u8 *seq,
258 size_t seq_len, const u8 *key, size_t key_len)
259{
260 struct ieee80211req_key wk;
261
262 wpa_printf(MSG_DEBUG, "%s: alg=%d addr=%p key_idx=%d set_tx=%d "
263 "seq_len=%zu key_len=%zu", __func__, alg, addr, key_idx,
264 set_tx, seq_len, key_len);
265
266 os_memset(&wk, 0, sizeof(wk));
267 switch (alg) {
268 case WPA_ALG_WEP:
269 wk.ik_type = IEEE80211_CIPHER_WEP;
270 break;
271 case WPA_ALG_TKIP:
272 wk.ik_type = IEEE80211_CIPHER_TKIP;
273 break;
274 case WPA_ALG_CCMP:
275 wk.ik_type = IEEE80211_CIPHER_AES_CCM;
276 break;
277 default:
278 wpa_printf(MSG_ERROR, "%s: unknown alg=%d", __func__, alg);
279 return -1;
280 }
281
282 wk.ik_flags = IEEE80211_KEY_RECV;
283 if (set_tx)
284 wk.ik_flags |= IEEE80211_KEY_XMIT;
285
286 if (addr == NULL) {
287 os_memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
288 wk.ik_keyix = key_idx;
289 } else {
290 os_memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
291 /*
292 * Deduce whether group/global or unicast key by checking
293 * the address (yech). Note also that we can only mark global
294 * keys default; doing this for a unicast key is an error.
295 */
296 if (os_memcmp(addr, "\xff\xff\xff\xff\xff\xff",
297 IEEE80211_ADDR_LEN) == 0) {
298 wk.ik_flags |= IEEE80211_KEY_GROUP;
299 wk.ik_keyix = key_idx;
300 } else {
301 wk.ik_keyix = key_idx == 0 ? IEEE80211_KEYIX_NONE :
302 key_idx;
303 }
304 }
305 if (wk.ik_keyix != IEEE80211_KEYIX_NONE && set_tx)
306 wk.ik_flags |= IEEE80211_KEY_DEFAULT;
307 wk.ik_keylen = key_len;
308 os_memcpy(&wk.ik_keyrsc, seq, seq_len);
309 os_memcpy(wk.ik_keydata, key, key_len);
310
311 return bsd_set80211var(s, ifname, IEEE80211_IOC_WPAKEY, &wk,
312 sizeof(wk));
313}
314
66d4085f 315
131289d8 316#ifdef HOSTAPD
6fc6879b 317
c5121837
JM		 318/*
319 * Avoid conflicts with hostapd definitions by undefining couple of defines
320 * from net80211 header files.
321 */
322#undef RSN_VERSION
323#undef WPA_VERSION
324#undef WPA_OUI_TYPE
325
c5121837 326#include "l2_packet/l2_packet.h"
c5121837
JM		 327
328struct bsd_driver_data {
329 struct hostapd_data *hapd; /* back pointer */
330
331 char iface[IFNAMSIZ + 1];
332 struct l2_packet_data *sock_xmit; /* raw packet xmit socket */
333 int ioctl_sock; /* socket for ioctl() use */
334 int wext_sock; /* socket for wireless events */
335};
336
731723a5
JM		 337static int bsd_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
338 int reason_code);
c5121837 339
c5121837
JM		 340static int
341get80211var(struct bsd_driver_data *drv, int op, void *arg, int arg_len)
342{
66d4085f 343 return bsd_get80211var(drv->ioctl_sock, drv->iface, op, arg, arg_len);
c5121837
JM		 344}
345
346static int
347set80211param(struct bsd_driver_data *drv, int op, int arg)
348{
66d4085f 349 return bsd_set80211param(drv->ioctl_sock, drv->iface, op, arg);
c5121837
JM		 350}
351
352static const char *
353ether_sprintf(const u8 *addr)
354{
355 static char buf[sizeof(MACSTR)];
356
357 if (addr != NULL)
358 snprintf(buf, sizeof(buf), MACSTR, MAC2STR(addr));
359 else
360 snprintf(buf, sizeof(buf), MACSTR, 0,0,0,0,0,0);
361 return buf;
362}
363
364/*
365 * Configure WPA parameters.
366 */
367static int
af586419 368bsd_configure_wpa(struct bsd_driver_data *drv, struct wpa_bss_params *params)
c5121837
JM		 369{
370 static const char *ciphernames[] =
371 { "WEP", "TKIP", "AES-OCB", "AES-CCM", "CKIP", "NONE" };
c5121837
JM		 372 int v;
373
af586419 374 switch (params->wpa_group) {
c5121837
JM		 375 case WPA_CIPHER_CCMP:
376 v = IEEE80211_CIPHER_AES_CCM;
377 break;
378 case WPA_CIPHER_TKIP:
379 v = IEEE80211_CIPHER_TKIP;
380 break;
381 case WPA_CIPHER_WEP104:
382 v = IEEE80211_CIPHER_WEP;
383 break;
384 case WPA_CIPHER_WEP40:
385 v = IEEE80211_CIPHER_WEP;
386 break;
387 case WPA_CIPHER_NONE:
388 v = IEEE80211_CIPHER_NONE;
389 break;
390 default:
391 printf("Unknown group key cipher %u\n",
af586419 392 params->wpa_group);
c5121837
JM		 393 return -1;
394 }
395 wpa_printf(MSG_DEBUG, "%s: group key cipher=%s (%u)",
396 __func__, ciphernames[v], v);
397 if (set80211param(drv, IEEE80211_IOC_MCASTCIPHER, v)) {
398 printf("Unable to set group key cipher to %u (%s)\n",
399 v, ciphernames[v]);
400 return -1;
401 }
402 if (v == IEEE80211_CIPHER_WEP) {
403 /* key length is done only for specific ciphers */
af586419 404 v = (params->wpa_group == WPA_CIPHER_WEP104 ? 13 : 5);
c5121837
JM		 405 if (set80211param(drv, IEEE80211_IOC_MCASTKEYLEN, v)) {
406 printf("Unable to set group key length to %u\n", v);
407 return -1;
408 }
409 }
410
411 v = 0;
af586419 412 if (params->wpa_pairwise & WPA_CIPHER_CCMP)
c5121837 413 v |= 1<<IEEE80211_CIPHER_AES_CCM;
af586419 414 if (params->wpa_pairwise & WPA_CIPHER_TKIP)
c5121837 415 v |= 1<<IEEE80211_CIPHER_TKIP;
af586419 416 if (params->wpa_pairwise & WPA_CIPHER_NONE)
c5121837
JM		 417 v |= 1<<IEEE80211_CIPHER_NONE;
418 wpa_printf(MSG_DEBUG, "%s: pairwise key ciphers=0x%x", __func__, v);
419 if (set80211param(drv, IEEE80211_IOC_UCASTCIPHERS, v)) {
420 printf("Unable to set pairwise key ciphers to 0x%x\n", v);
421 return -1;
422 }
423
424 wpa_printf(MSG_DEBUG, "%s: key management algorithms=0x%x",
af586419
JM		 425 __func__, params->wpa_key_mgmt);
426 if (set80211param(drv, IEEE80211_IOC_KEYMGTALGS, params->wpa_key_mgmt))
427 {
c5121837 428 printf("Unable to set key management algorithms to 0x%x\n",
af586419 429 params->wpa_key_mgmt);
c5121837
JM		 430 return -1;
431 }
432
433 v = 0;
af586419 434 if (params->rsn_preauth)
c5121837
JM		 435 v |= BIT(0);
436 wpa_printf(MSG_DEBUG, "%s: rsn capabilities=0x%x",
af586419 437 __func__, params->rsn_preauth);
c5121837
JM		 438 if (set80211param(drv, IEEE80211_IOC_RSNCAPS, v)) {
439 printf("Unable to set RSN capabilities to 0x%x\n", v);
440 return -1;
441 }
442
af586419
JM		 443 wpa_printf(MSG_DEBUG, "%s: enable WPA= 0x%x", __func__, params->wpa);
444 if (set80211param(drv, IEEE80211_IOC_WPA, params->wpa)) {
445 printf("Unable to set WPA to %u\n", params->wpa);
c5121837
JM		 446 return -1;
447 }
448 return 0;
449}
450
c5121837 451static int
60bc3033 452hostapd_bsd_ctrl_iface(struct bsd_driver_data *drv, int enable)
c5121837 453{
60bc3033 454 return bsd_ctrl_iface(drv->ioctl_sock, drv->iface, enable);
c5121837
JM		 455}
456
457static int
e3bd3912 458bsd_set_ieee8021x(void *priv, struct wpa_bss_params *params)
c5121837
JM		 459{
460 struct bsd_driver_data *drv = priv;
c5121837 461
af586419 462 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, params->enabled);
c5121837 463
af586419 464 if (!params->enabled) {
c5121837
JM		 465 /* XXX restore state */
466 return set80211param(priv, IEEE80211_IOC_AUTHMODE,
467 IEEE80211_AUTH_AUTO);
468 }
af586419
JM		 469 if (!params->wpa && !params->ieee802_1x) {
470 hostapd_logger(drv->hapd, NULL, HOSTAPD_MODULE_DRIVER,
c5121837
JM		 471 HOSTAPD_LEVEL_WARNING, "No 802.1X or WPA enabled!");
472 return -1;
473 }
c9b9e494 474 if (params->wpa && bsd_configure_wpa(drv, params) != 0) {
af586419 475 hostapd_logger(drv->hapd, NULL, HOSTAPD_MODULE_DRIVER,
c5121837
JM		 476 HOSTAPD_LEVEL_WARNING, "Error configuring WPA state!");
477 return -1;
478 }
479 if (set80211param(priv, IEEE80211_IOC_AUTHMODE,
af586419
JM		 480 (params->wpa ? IEEE80211_AUTH_WPA : IEEE80211_AUTH_8021X))) {
481 hostapd_logger(drv->hapd, NULL, HOSTAPD_MODULE_DRIVER,
c5121837
JM		 482 HOSTAPD_LEVEL_WARNING, "Error enabling WPA/802.1X!");
483 return -1;
484 }
60bc3033 485 return hostapd_bsd_ctrl_iface(drv, 1);
c5121837
JM		 486}
487
488static int
489bsd_set_privacy(const char *ifname, void *priv, int enabled)
490{
491 struct bsd_driver_data *drv = priv;
492
493 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
494
495 return set80211param(drv, IEEE80211_IOC_PRIVACY, enabled);
496}
497
498static int
499bsd_set_sta_authorized(void *priv, const u8 *addr, int authorized)
500{
501 struct bsd_driver_data *drv = priv;
c5121837 502
fa6b8afe
MH		 503 return bsd_send_mlme_param(drv->ioctl_sock, drv->iface, authorized ?
504 IEEE80211_MLME_AUTHORIZE :
505 IEEE80211_MLME_UNAUTHORIZE, 0, addr);
c5121837
JM		 506}
507
508static int
509bsd_sta_set_flags(void *priv, const u8 *addr, int total_flags, int flags_or,
510 int flags_and)
511{
512 /* For now, only support setting Authorized flag */
0de39516 513 if (flags_or & WPA_STA_AUTHORIZED)
c5121837 514 return bsd_set_sta_authorized(priv, addr, 1);
0de39516 515 if (!(flags_and & WPA_STA_AUTHORIZED))
c5121837
JM		 516 return bsd_set_sta_authorized(priv, addr, 0);
517 return 0;
518}
519
c5121837 520static int
719196b1 521hostapd_bsd_set_key(const char *ifname, void *priv, enum wpa_alg alg,
c5121837
JM		 522 const u8 *addr, int key_idx, int set_tx, const u8 *seq,
523 size_t seq_len, const u8 *key, size_t key_len)
524{
525 struct bsd_driver_data *drv = priv;
c5121837
JM		 526
527 if (alg == WPA_ALG_NONE)
cbdecd2b 528 return bsd_del_key(drv->ioctl_sock, drv->iface, addr, key_idx);
c5121837 529
719196b1
MH		 530 return bsd_set_key(drv->ioctl_sock, drv->iface, alg, addr, key_idx,
531 set_tx, seq, seq_len, key, key_len);
c5121837
JM		 532}
533
534
535static int
536bsd_get_seqnum(const char *ifname, void *priv, const u8 *addr, int idx,
537 u8 *seq)
538{
539 struct bsd_driver_data *drv = priv;
540 struct ieee80211req_key wk;
541
542 wpa_printf(MSG_DEBUG, "%s: addr=%s idx=%d",
543 __func__, ether_sprintf(addr), idx);
544
545 memset(&wk, 0, sizeof(wk));
546 if (addr == NULL)
547 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
548 else
549 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
550 wk.ik_keyix = idx;
551
552 if (get80211var(drv, IEEE80211_IOC_WPAKEY, &wk, sizeof(wk)) < 0) {
553 printf("Failed to get encryption.\n");
554 return -1;
555 }
556
557#ifdef WORDS_BIGENDIAN
558 {
559 /*
560 * wk.ik_keytsc is in host byte order (big endian), need to
561 * swap it to match with the byte order used in WPA.
562 */
563 int i;
564 u8 tmp[WPA_KEY_RSC_LEN];
565 memcpy(tmp, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
566 for (i = 0; i < WPA_KEY_RSC_LEN; i++) {
567 seq[i] = tmp[WPA_KEY_RSC_LEN - i - 1];
568 }
569 }
570#else /* WORDS_BIGENDIAN */
571 memcpy(seq, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
572#endif /* WORDS_BIGENDIAN */
573 return 0;
574}
575
576
577static int
578bsd_flush(void *priv)
579{
580 u8 allsta[IEEE80211_ADDR_LEN];
581
582 memset(allsta, 0xff, IEEE80211_ADDR_LEN);
731723a5 583 return bsd_sta_deauth(priv, NULL, allsta, IEEE80211_REASON_AUTH_LEAVE);
c5121837
JM		 584}
585
586
587static int
588bsd_read_sta_driver_data(void *priv, struct hostap_sta_driver_data *data,
589 const u8 *addr)
590{
591 struct bsd_driver_data *drv = priv;
592 struct ieee80211req_sta_stats stats;
593
594 memcpy(stats.is_u.macaddr, addr, IEEE80211_ADDR_LEN);
595 if (get80211var(drv, IEEE80211_IOC_STA_STATS, &stats, sizeof(stats)) > 0) {
596 /* XXX? do packets counts include non-data frames? */
597 data->rx_packets = stats.is_stats.ns_rx_data;
598 data->rx_bytes = stats.is_stats.ns_rx_bytes;
599 data->tx_packets = stats.is_stats.ns_tx_data;
600 data->tx_bytes = stats.is_stats.ns_tx_bytes;
601 }
602 return 0;
603}
604
605static int
606bsd_set_opt_ie(const char *ifname, void *priv, const u8 *ie, size_t ie_len)
607{
608 /*
609 * Do nothing; we setup parameters at startup that define the
610 * contents of the beacon information element.
611 */
612 return 0;
613}
614
615static int
731723a5 616bsd_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, int reason_code)
c5121837
JM		 617{
618 struct bsd_driver_data *drv = priv;
c5121837 619
fa6b8afe
MH		 620 return bsd_send_mlme_param(drv->ioctl_sock, drv->iface,
621 IEEE80211_MLME_DEAUTH, reason_code, addr);
c5121837
JM		 622}
623
624static int
731723a5
JM		 625bsd_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
626 int reason_code)
c5121837
JM		 627{
628 struct bsd_driver_data *drv = priv;
c5121837 629
fa6b8afe
MH		 630 return bsd_send_mlme_param(drv->ioctl_sock, drv->iface,
631 IEEE80211_MLME_DISASSOC, reason_code, addr);
c5121837
JM		 632}
633
1d041bec 634static void
c5121837
JM		 635bsd_new_sta(struct bsd_driver_data *drv, u8 addr[IEEE80211_ADDR_LEN])
636{
637 struct hostapd_data *hapd = drv->hapd;
638 struct ieee80211req_wpaie ie;
639 int ielen = 0;
640 u8 *iebuf = NULL;
641
642 /*
643 * Fetch and validate any negotiated WPA/RSN parameters.
644 */
645 memset(&ie, 0, sizeof(ie));
646 memcpy(ie.wpa_macaddr, addr, IEEE80211_ADDR_LEN);
647 if (get80211var(drv, IEEE80211_IOC_WPAIE, &ie, sizeof(ie)) < 0) {
648 printf("Failed to get WPA/RSN information element.\n");
649 goto no_ie;
650 }
651 iebuf = ie.wpa_ie;
652 ielen = ie.wpa_ie[1];
653 if (ielen == 0)
654 iebuf = NULL;
655 else
656 ielen += 2;
657
658no_ie:
1d041bec 659 drv_event_assoc(hapd, addr, iebuf, ielen);
c5121837
JM		 660}
661
c5121837
JM		 662static void
663bsd_wireless_event_receive(int sock, void *ctx, void *sock_ctx)
664{
665 struct bsd_driver_data *drv = ctx;
c5121837
JM		 666 char buf[2048];
667 struct if_announcemsghdr *ifan;
668 struct rt_msghdr *rtm;
669 struct ieee80211_michael_event *mic;
670 struct ieee80211_join_event *join;
671 struct ieee80211_leave_event *leave;
672 int n;
1cd973d5 673 union wpa_event_data data;
c5121837
JM		 674
675 n = read(sock, buf, sizeof(buf));
676 if (n < 0) {
677 if (errno != EINTR && errno != EAGAIN)
678 perror("read(PF_ROUTE)");
679 return;
680 }
681
682 rtm = (struct rt_msghdr *) buf;
683 if (rtm->rtm_version != RTM_VERSION) {
684 wpa_printf(MSG_DEBUG, "Routing message version %d not "
685 "understood\n", rtm->rtm_version);
686 return;
687 }
688 ifan = (struct if_announcemsghdr *) rtm;
689 switch (rtm->rtm_type) {
690 case RTM_IEEE80211:
691 switch (ifan->ifan_what) {
692 case RTM_IEEE80211_ASSOC:
693 case RTM_IEEE80211_REASSOC:
694 case RTM_IEEE80211_DISASSOC:
695 case RTM_IEEE80211_SCAN:
696 break;
697 case RTM_IEEE80211_LEAVE:
698 leave = (struct ieee80211_leave_event *) &ifan[1];
69378b79 699 drv_event_disassoc(drv->hapd, leave->iev_addr);
c5121837
JM		 700 break;
701 case RTM_IEEE80211_JOIN:
702#ifdef RTM_IEEE80211_REJOIN
703 case RTM_IEEE80211_REJOIN:
704#endif
705 join = (struct ieee80211_join_event *) &ifan[1];
706 bsd_new_sta(drv, join->iev_addr);
707 break;
708 case RTM_IEEE80211_REPLAY:
709 /* ignore */
710 break;
711 case RTM_IEEE80211_MICHAEL:
712 mic = (struct ieee80211_michael_event *) &ifan[1];
713 wpa_printf(MSG_DEBUG,
714 "Michael MIC failure wireless event: "
715 "keyix=%u src_addr=" MACSTR, mic->iev_keyix,
716 MAC2STR(mic->iev_src));
1cd973d5
JM		 717 os_memset(&data, 0, sizeof(data));
718 data.michael_mic_failure.unicast = 1;
719 data.michael_mic_failure.src = mic->iev_src;
720 wpa_supplicant_event(drv->hapd,
721 EVENT_MICHAEL_MIC_FAILURE, &data);
c5121837
JM		 722 break;
723 }
724 break;
725 }
726}
727
728static int
729bsd_wireless_event_init(struct bsd_driver_data *drv)
730{
731 int s;
732
733 drv->wext_sock = -1;
734
735 s = socket(PF_ROUTE, SOCK_RAW, 0);
736 if (s < 0) {
737 perror("socket(PF_ROUTE,SOCK_RAW)");
738 return -1;
739 }
740 eloop_register_read_sock(s, bsd_wireless_event_receive, drv, NULL);
741 drv->wext_sock = s;
742
743 return 0;
744}
745
746static void
747bsd_wireless_event_deinit(struct bsd_driver_data *drv)
748{
749 if (drv->wext_sock < 0)
750 return;
751 eloop_unregister_read_sock(drv->wext_sock);
752 close(drv->wext_sock);
753}
754
755
756static int
757bsd_send_eapol(void *priv, const u8 *addr, const u8 *data, size_t data_len,
758 int encrypt, const u8 *own_addr)
759{
760 struct bsd_driver_data *drv = priv;
11386396 761 unsigned char *bp;
c5121837
JM		 762 struct l2_ethhdr *eth;
763 size_t len;
764 int status;
765
766 /*
11386396 767 * Prepend the Ethernet header. If the caller left us
c5121837
JM		 768 * space at the front we could just insert it but since
769 * we don't know we copy to a local buffer. Given the frequency
770 * and size of frames this probably doesn't matter.
771 */
772 len = data_len + sizeof(struct l2_ethhdr);
11386396
MH		 773 bp = os_zalloc(len);
774 if (bp == NULL) {
775 wpa_printf(MSG_ERROR, "malloc() failed for bsd_send_eapol"
776 "(len=%lu)", (unsigned long) len);
777 return -1;
c5121837
JM		 778 }
779 eth = (struct l2_ethhdr *) bp;
11386396
MH		 780 os_memcpy(eth->h_dest, addr, ETH_ALEN);
781 os_memcpy(eth->h_source, own_addr, ETH_ALEN);
c5121837 782 eth->h_proto = htons(ETH_P_EAPOL);
11386396 783 os_memcpy(eth + 1, data, data_len);
c5121837
JM		 784
785 wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", bp, len);
786
787 status = l2_packet_send(drv->sock_xmit, addr, ETH_P_EAPOL, bp, len);
788
11386396 789 os_free(bp);
c5121837
JM		 790 return status;
791}
792
793static void
794handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
795{
796 struct bsd_driver_data *drv = ctx;
baac6490
JM		 797 drv_event_eapol_rx(drv->hapd, src_addr, buf + sizeof(struct l2_ethhdr),
798 len - sizeof(struct l2_ethhdr));
c5121837
JM		 799}
800
801static int
66d4085f 802hostapd_bsd_get_ssid(const char *ifname, void *priv, u8 *buf, int len)
c5121837
JM		 803{
804 struct bsd_driver_data *drv = priv;
66d4085f 805 int ssid_len;
c5121837 806
66d4085f 807 ssid_len = bsd_get_ssid(drv->ioctl_sock, drv->iface, buf);
c5121837
JM		 808 wpa_printf(MSG_DEBUG, "%s: ssid=\"%.*s\"", __func__, ssid_len, buf);
809
810 return ssid_len;
811}
812
813static int
66d4085f 814hostapd_bsd_set_ssid(const char *ifname, void *priv, const u8 *buf, int len)
c5121837
JM		 815{
816 struct bsd_driver_data *drv = priv;
817
818 wpa_printf(MSG_DEBUG, "%s: ssid=\"%.*s\"", __func__, len, buf);
819
66d4085f 820 return bsd_set_ssid(drv->ioctl_sock, drv->iface, buf, len);
c5121837
JM		 821}
822
5197244a
MH		 823static int
824bsd_set_freq(void *priv, struct hostapd_freq_params *freq)
825{
826 struct bsd_driver_data *drv = priv;
827 struct ieee80211chanreq creq;
828 uint32_t mode;
829
830 if (freq->channel < 14)
831 mode = IFM_IEEE80211_11G;
832 else if (freq->channel == 14)
833 mode = IFM_IEEE80211_11B;
834 else
835 mode = IFM_IEEE80211_11A;
836 if (bsd_set_mediaopt(drv->ioctl_sock, drv->iface, IFM_MMASK,
837 mode) < 0) {
838 wpa_printf(MSG_ERROR, "%s: failed to set modulation mode",
839 __func__);
840 return -1;
841 }
842
843 os_memset(&creq, 0, sizeof(creq));
844 os_strlcpy(creq.i_name, drv->iface, sizeof(creq.i_name));
845 creq.i_channel = freq->channel;
846 return ioctl(drv->ioctl_sock, SIOCS80211CHANNEL, &creq);
847}
848
c5121837 849static void *
92f475b4 850bsd_init(struct hostapd_data *hapd, struct wpa_init_params *params)
c5121837
JM		 851{
852 struct bsd_driver_data *drv;
853
854 drv = os_zalloc(sizeof(struct bsd_driver_data));
855 if (drv == NULL) {
856 printf("Could not allocate memory for bsd driver data\n");
857 goto bad;
858 }
859
860 drv->hapd = hapd;
861 drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
862 if (drv->ioctl_sock < 0) {
863 perror("socket[PF_INET,SOCK_DGRAM]");
864 goto bad;
865 }
412036f5 866 memcpy(drv->iface, params->ifname, sizeof(drv->iface));
c5121837
JM		 867
868 drv->sock_xmit = l2_packet_init(drv->iface, NULL, ETH_P_EAPOL,
869 handle_read, drv, 1);
870 if (drv->sock_xmit == NULL)
871 goto bad;
412036f5 872 if (l2_packet_get_own_addr(drv->sock_xmit, params->own_addr))
c5121837
JM		 873 goto bad;
874
60bc3033
MH		 875 /* mark down during setup */
876 if (hostapd_bsd_ctrl_iface(drv, 0) < 0)
877 goto bad;
c5121837
JM		 878 if (bsd_wireless_event_init(drv))
879 goto bad;
880
5197244a
MH		 881 if (bsd_set_mediaopt(drv->ioctl_sock, drv->iface, IFM_OMASK,
882 IFM_IEEE80211_HOSTAP) < 0) {
883 wpa_printf(MSG_ERROR, "%s: failed to set operation mode",
884 __func__);
885 goto bad;
886 }
887
c5121837
JM		 888 return drv;
889bad:
890 if (drv->sock_xmit != NULL)
891 l2_packet_deinit(drv->sock_xmit);
892 if (drv->ioctl_sock >= 0)
893 close(drv->ioctl_sock);
894 if (drv != NULL)
82f36163 895 os_free(drv);
c5121837
JM		 896 return NULL;
897}
898
899
900static void
901bsd_deinit(void *priv)
902{
903 struct bsd_driver_data *drv = priv;
904
905 bsd_wireless_event_deinit(drv);
60bc3033 906 hostapd_bsd_ctrl_iface(drv, 0);
c5121837
JM		 907 if (drv->ioctl_sock >= 0)
908 close(drv->ioctl_sock);
909 if (drv->sock_xmit != NULL)
910 l2_packet_deinit(drv->sock_xmit);
82f36163 911 os_free(drv);
c5121837
JM		 912}
913
914const struct wpa_driver_ops wpa_driver_bsd_ops = {
915 .name = "bsd",
916 .hapd_init = bsd_init,
917 .hapd_deinit = bsd_deinit,
918 .set_ieee8021x = bsd_set_ieee8021x,
919 .set_privacy = bsd_set_privacy,
719196b1 920 .set_key = hostapd_bsd_set_key,
c5121837
JM		 921 .get_seqnum = bsd_get_seqnum,
922 .flush = bsd_flush,
923 .set_generic_elem = bsd_set_opt_ie,
924 .sta_set_flags = bsd_sta_set_flags,
925 .read_sta_data = bsd_read_sta_driver_data,
926 .hapd_send_eapol = bsd_send_eapol,
927 .sta_disassoc = bsd_sta_disassoc,
928 .sta_deauth = bsd_sta_deauth,
66d4085f
RM		 929 .hapd_set_ssid = hostapd_bsd_set_ssid,
930 .hapd_get_ssid = hostapd_bsd_get_ssid,
5197244a 931 .set_freq = bsd_set_freq,
c5121837
JM		 932};
933
934#else /* HOSTAPD */
935
6fc6879b
JM		 936struct wpa_driver_bsd_data {
937 int sock; /* open socket for 802.11 ioctls */
938 int route; /* routing socket for events */
939 char ifname[IFNAMSIZ+1]; /* interface name */
940 unsigned int ifindex; /* interface index */
941 void *ctx;
942 int prev_roaming; /* roaming state to restore on deinit */
943 int prev_privacy; /* privacy state to restore on deinit */
944 int prev_wpa; /* wpa state to restore on deinit */
945};
946
947static int
948set80211var(struct wpa_driver_bsd_data *drv, int op, const void *arg, int arg_len)
949{
66d4085f 950 return bsd_set80211var(drv->sock, drv->ifname, op, arg, arg_len);
6fc6879b
JM		 951}
952
953static int
954get80211var(struct wpa_driver_bsd_data *drv, int op, void *arg, int arg_len)
955{
66d4085f 956 return bsd_get80211var(drv->sock, drv->ifname, op, arg, arg_len);
6fc6879b
JM		 957}
958
959static int
960set80211param(struct wpa_driver_bsd_data *drv, int op, int arg)
961{
66d4085f 962 return bsd_set80211param(drv->sock, drv->ifname, op, arg);
6fc6879b
JM		 963}
964
965static int
966get80211param(struct wpa_driver_bsd_data *drv, int op)
967{
968 struct ieee80211req ireq;
969
970 os_memset(&ireq, 0, sizeof(ireq));
66d4085f 971 os_strlcpy(ireq.i_name, drv->ifname, sizeof(ireq.i_name));
6fc6879b
JM		 972 ireq.i_type = op;
973
974 if (ioctl(drv->sock, SIOCG80211, &ireq) < 0) {
975 fprintf(stderr, "ioctl[SIOCG80211, op %u]: %s\n",
976 op, strerror(errno));
977 return -1;
978 }
979 return ireq.i_val;
980}
981
6fc6879b
JM		 982static int
983wpa_driver_bsd_get_bssid(void *priv, u8 *bssid)
984{
985 struct wpa_driver_bsd_data *drv = priv;
66d4085f 986#ifdef SIOCG80211BSSID
a65f4a57 987 struct ieee80211_bssid bs;
6fc6879b 988
a65f4a57
MH		 989 os_strncpy(bs.i_name, drv->ifname, sizeof(bs.i_name));
990 if (ioctl(drv->sock, SIOCG80211BSSID, &bs) < 0)
991 return -1;
992 os_memcpy(bssid, bs.i_bssid, sizeof(bs.i_bssid));
993 return 0;
994#else
6fc6879b
JM		 995 return get80211var(drv, IEEE80211_IOC_BSSID,
996 bssid, IEEE80211_ADDR_LEN) < 0 ? -1 : 0;
a65f4a57 997#endif
6fc6879b
JM		 998}
999
1000#if 0
1001static int
1002wpa_driver_bsd_set_bssid(void *priv, const char *bssid)
1003{
1004 struct wpa_driver_bsd_data *drv = priv;
1005
1006 return set80211var(drv, IEEE80211_IOC_BSSID,
1007 bssid, IEEE80211_ADDR_LEN);
1008}
1009#endif
1010
1011static int
1012wpa_driver_bsd_get_ssid(void *priv, u8 *ssid)
1013{
1014 struct wpa_driver_bsd_data *drv = priv;
1015
66d4085f 1016 return bsd_get_ssid(drv->sock, drv->ifname, ssid);
6fc6879b
JM		 1017}
1018
1019static int
4df91b3f 1020wpa_driver_bsd_set_ssid(void *priv, const u8 *ssid,
6fc6879b
JM		 1021 size_t ssid_len)
1022{
1023 struct wpa_driver_bsd_data *drv = priv;
1024
66d4085f 1025 return bsd_set_ssid(drv->sock, drv->ifname, ssid, ssid_len);
6fc6879b
JM		 1026}
1027
1028static int
1029wpa_driver_bsd_set_wpa_ie(struct wpa_driver_bsd_data *drv,
4df91b3f 1030 const u8 *wpa_ie, size_t wpa_ie_len)
6fc6879b 1031{
c610dba1
MH		 1032#ifdef IEEE80211_IOC_APPIE
1033 return set80211var(drv, IEEE80211_IOC_APPIE, wpa_ie, wpa_ie_len);
1034#else /* IEEE80211_IOC_APPIE */
6fc6879b 1035 return set80211var(drv, IEEE80211_IOC_OPTIE, wpa_ie, wpa_ie_len);
c610dba1 1036#endif /* IEEE80211_IOC_APPIE */
6fc6879b
JM		 1037}
1038
1039static int
1040wpa_driver_bsd_set_wpa_internal(void *priv, int wpa, int privacy)
1041{
1042 struct wpa_driver_bsd_data *drv = priv;
1043 int ret = 0;
1044
1045 wpa_printf(MSG_DEBUG, "%s: wpa=%d privacy=%d",
1046 __FUNCTION__, wpa, privacy);
1047
1048 if (!wpa && wpa_driver_bsd_set_wpa_ie(drv, NULL, 0) < 0)
1049 ret = -1;
1050 if (set80211param(drv, IEEE80211_IOC_PRIVACY, privacy) < 0)
1051 ret = -1;
1052 if (set80211param(drv, IEEE80211_IOC_WPA, wpa) < 0)
1053 ret = -1;
1054
1055 return ret;
1056}
1057
1058static int
1059wpa_driver_bsd_set_wpa(void *priv, int enabled)
1060{
1061 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
1062
1063 return wpa_driver_bsd_set_wpa_internal(priv, enabled ? 3 : 0, enabled);
1064}
1065
6fc6879b 1066static int
71934751 1067wpa_driver_bsd_set_key(const char *ifname, void *priv, enum wpa_alg alg,
6fc6879b
JM		 1068 const unsigned char *addr, int key_idx, int set_tx,
1069 const u8 *seq, size_t seq_len,
1070 const u8 *key, size_t key_len)
1071{
1072 struct wpa_driver_bsd_data *drv = priv;
6fc6879b 1073
719196b1
MH		 1074 if (alg == WPA_ALG_NONE) {
1075 if (addr == NULL ||
1076 os_memcmp(addr, "\xff\xff\xff\xff\xff\xff",
1077 IEEE80211_ADDR_LEN) == 0)
1078 return bsd_del_key(drv->sock, drv->ifname, NULL,
1079 key_idx);
1080 else
1081 return bsd_del_key(drv->sock, drv->ifname, addr,
1082 key_idx);
6fc6879b 1083 }
6fc6879b 1084
719196b1
MH		 1085 return bsd_set_key(drv->sock, drv->ifname, alg, addr, key_idx, set_tx,
1086 seq, seq_len, key, key_len);
6fc6879b
JM		 1087}
1088
1089static int
1090wpa_driver_bsd_set_countermeasures(void *priv, int enabled)
1091{
1092 struct wpa_driver_bsd_data *drv = priv;
1093
1094 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
1095 return set80211param(drv, IEEE80211_IOC_COUNTERMEASURES, enabled);
1096}
1097
1098
1099static int
1100wpa_driver_bsd_set_drop_unencrypted(void *priv, int enabled)
1101{
1102 struct wpa_driver_bsd_data *drv = priv;
1103
1104 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
1105 return set80211param(drv, IEEE80211_IOC_DROPUNENCRYPTED, enabled);
1106}
1107
1108static int
1109wpa_driver_bsd_deauthenticate(void *priv, const u8 *addr, int reason_code)
1110{
1111 struct wpa_driver_bsd_data *drv = priv;
6fc6879b 1112
fa6b8afe
MH		 1113 return bsd_send_mlme_param(drv->sock, drv->ifname,
1114 IEEE80211_MLME_DEAUTH, reason_code, addr);
6fc6879b
JM		 1115}
1116
1117static int
1118wpa_driver_bsd_disassociate(void *priv, const u8 *addr, int reason_code)
1119{
1120 struct wpa_driver_bsd_data *drv = priv;
6fc6879b 1121
fa6b8afe
MH		 1122 return bsd_send_mlme_param(drv->sock, drv->ifname,
1123 IEEE80211_MLME_DISASSOC, reason_code, addr);
6fc6879b
JM		 1124}
1125
2a91091e
MH		 1126static int
1127wpa_driver_bsd_set_auth_alg(void *priv, int auth_alg)
1128{
1129 struct wpa_driver_bsd_data *drv = priv;
1130 int authmode;
1131
abd9fafa
JM		 1132 if ((auth_alg & WPA_AUTH_ALG_OPEN) &&
1133 (auth_alg & WPA_AUTH_ALG_SHARED))
2a91091e 1134 authmode = IEEE80211_AUTH_AUTO;
abd9fafa 1135 else if (auth_alg & WPA_AUTH_ALG_SHARED)
2a91091e
MH		 1136 authmode = IEEE80211_AUTH_SHARED;
1137 else
1138 authmode = IEEE80211_AUTH_OPEN;
1139
1140 return set80211param(drv, IEEE80211_IOC_AUTHMODE, authmode);
1141}
1142
6fc6879b
JM		 1143static int
1144wpa_driver_bsd_associate(void *priv, struct wpa_driver_associate_params *params)
1145{
1146 struct wpa_driver_bsd_data *drv = priv;
1147 struct ieee80211req_mlme mlme;
1148 int privacy;
4a867032 1149 int ret = 0;
6fc6879b
JM		 1150
1151 wpa_printf(MSG_DEBUG,
1152 "%s: ssid '%.*s' wpa ie len %u pairwise %u group %u key mgmt %u"
1153 , __func__
92e63aaf
JM		 1154 , (unsigned int) params->ssid_len, params->ssid
1155 , (unsigned int) params->wpa_ie_len
6fc6879b
JM		 1156 , params->pairwise_suite
1157 , params->group_suite
1158 , params->key_mgmt_suite
1159 );
1160
4a867032
JM		 1161 if (wpa_driver_bsd_set_drop_unencrypted(drv, params->drop_unencrypted)
1162 < 0)
1163 ret = -1;
1164 if (wpa_driver_bsd_set_auth_alg(drv, params->auth_alg) < 0)
1165 ret = -1;
6fc6879b
JM		 1166 /* XXX error handling is wrong but unclear what to do... */
1167 if (wpa_driver_bsd_set_wpa_ie(drv, params->wpa_ie, params->wpa_ie_len) < 0)
1168 return -1;
6fc6879b
JM		 1169
1170 privacy = !(params->pairwise_suite == CIPHER_NONE &&
1171 params->group_suite == CIPHER_NONE &&
1172 params->key_mgmt_suite == KEY_MGMT_NONE &&
1173 params->wpa_ie_len == 0);
1174 wpa_printf(MSG_DEBUG, "%s: set PRIVACY %u", __func__, privacy);
1175
1176 if (set80211param(drv, IEEE80211_IOC_PRIVACY, privacy) < 0)
1177 return -1;
1178
1179 if (params->wpa_ie_len &&
1180 set80211param(drv, IEEE80211_IOC_WPA,
1181 params->wpa_ie[0] == WLAN_EID_RSN ? 2 : 1) < 0)
1182 return -1;
1183
1184 os_memset(&mlme, 0, sizeof(mlme));
1185 mlme.im_op = IEEE80211_MLME_ASSOC;
6fc6879b
JM		 1186 if (params->ssid != NULL)
1187 os_memcpy(mlme.im_ssid, params->ssid, params->ssid_len);
1188 mlme.im_ssid_len = params->ssid_len;
6fc6879b
JM		 1189 if (params->bssid != NULL)
1190 os_memcpy(mlme.im_macaddr, params->bssid, IEEE80211_ADDR_LEN);
1191 if (set80211var(drv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme)) < 0)
1192 return -1;
4a867032 1193 return ret;
6fc6879b
JM		 1194}
1195
60bc3033
MH		 1196static int
1197wpa_driver_bsd_ctrl_iface(struct wpa_driver_bsd_data *drv, int enable)
1198{
1199 return bsd_ctrl_iface(drv->sock, drv->ifname, enable);
1200}
1201
6fc6879b 1202static int
c2e8d0a0 1203wpa_driver_bsd_scan(void *priv, struct wpa_driver_scan_params *params)
6fc6879b
JM		 1204{
1205 struct wpa_driver_bsd_data *drv = priv;
c2e8d0a0
JM		 1206 const u8 *ssid = params->ssids[0].ssid;
1207 size_t ssid_len = params->ssids[0].ssid_len;
6fc6879b
JM		 1208
1209 /* NB: interface must be marked UP to do a scan */
60bc3033 1210 if (wpa_driver_bsd_ctrl_iface(drv, 1) < 0)
6fc6879b
JM		 1211 return -1;
1212
1213 /* set desired ssid before scan */
1214 if (wpa_driver_bsd_set_ssid(drv, ssid, ssid_len) < 0)
1215 return -1;
1216
1217 /* NB: net80211 delivers a scan complete event so no need to poll */
1218 return set80211param(drv, IEEE80211_IOC_SCAN_REQ, 0);
1219}
1220
6fc6879b
JM		 1221static void
1222wpa_driver_bsd_event_receive(int sock, void *ctx, void *sock_ctx)
1223{
1224 struct wpa_driver_bsd_data *drv = sock_ctx;
1225 char buf[2048];
1226 struct if_announcemsghdr *ifan;
1227 struct if_msghdr *ifm;
1228 struct rt_msghdr *rtm;
1229 union wpa_event_data event;
1230 struct ieee80211_michael_event *mic;
1231 int n;
1232
1233 n = read(sock, buf, sizeof(buf));
1234 if (n < 0) {
1235 if (errno != EINTR && errno != EAGAIN)
1236 perror("read(PF_ROUTE)");
1237 return;
1238 }
1239
1240 rtm = (struct rt_msghdr *) buf;
1241 if (rtm->rtm_version != RTM_VERSION) {
1242 wpa_printf(MSG_DEBUG, "Routing message version %d not "
1243 "understood\n", rtm->rtm_version);
1244 return;
1245 }
1246 os_memset(&event, 0, sizeof(event));
1247 switch (rtm->rtm_type) {
1248 case RTM_IFANNOUNCE:
1249 ifan = (struct if_announcemsghdr *) rtm;
1250 if (ifan->ifan_index != drv->ifindex)
1251 break;
1252 strlcpy(event.interface_status.ifname, drv->ifname,
1253 sizeof(event.interface_status.ifname));
1254 switch (ifan->ifan_what) {
1255 case IFAN_DEPARTURE:
1256 event.interface_status.ievent = EVENT_INTERFACE_REMOVED;
1257 default:
1258 return;
1259 }
1260 wpa_printf(MSG_DEBUG, "RTM_IFANNOUNCE: Interface '%s' %s",
1261 event.interface_status.ifname,
1262 ifan->ifan_what == IFAN_DEPARTURE ?
1263 "removed" : "added");
1264 wpa_supplicant_event(ctx, EVENT_INTERFACE_STATUS, &event);
1265 break;
1266 case RTM_IEEE80211:
1267 ifan = (struct if_announcemsghdr *) rtm;
1268 if (ifan->ifan_index != drv->ifindex)
1269 break;
1270 switch (ifan->ifan_what) {
1271 case RTM_IEEE80211_ASSOC:
1272 case RTM_IEEE80211_REASSOC:
1273 wpa_supplicant_event(ctx, EVENT_ASSOC, NULL);
1274 break;
1275 case RTM_IEEE80211_DISASSOC:
1276 wpa_supplicant_event(ctx, EVENT_DISASSOC, NULL);
1277 break;
1278 case RTM_IEEE80211_SCAN:
1279 wpa_supplicant_event(ctx, EVENT_SCAN_RESULTS, NULL);
1280 break;
1281 case RTM_IEEE80211_REPLAY:
1282 /* ignore */
1283 break;
1284 case RTM_IEEE80211_MICHAEL:
1285 mic = (struct ieee80211_michael_event *) &ifan[1];
1286 wpa_printf(MSG_DEBUG,
1287 "Michael MIC failure wireless event: "
1288 "keyix=%u src_addr=" MACSTR, mic->iev_keyix,
1289 MAC2STR(mic->iev_src));
1290
1291 os_memset(&event, 0, sizeof(event));
1292 event.michael_mic_failure.unicast =
1293 !IEEE80211_IS_MULTICAST(mic->iev_dst);
1294 wpa_supplicant_event(ctx, EVENT_MICHAEL_MIC_FAILURE,
1295 &event);
1296 break;
1297 }
1298 break;
1299 case RTM_IFINFO:
1300 ifm = (struct if_msghdr *) rtm;
1301 if (ifm->ifm_index != drv->ifindex)
1302 break;
1303 if ((rtm->rtm_flags & RTF_UP) == 0) {
1304 strlcpy(event.interface_status.ifname, drv->ifname,
1305 sizeof(event.interface_status.ifname));
1306 event.interface_status.ievent = EVENT_INTERFACE_REMOVED;
1307 wpa_printf(MSG_DEBUG, "RTM_IFINFO: Interface '%s' DOWN",
1308 event.interface_status.ifname);
1309 wpa_supplicant_event(ctx, EVENT_INTERFACE_STATUS, &event);
1310 }
1311 break;
1312 }
1313}
1314
a65f4a57
MH		 1315static void
1316wpa_driver_bsd_add_scan_entry(struct wpa_scan_results *res,
1317 struct ieee80211req_scan_result *sr)
6fc6879b 1318{
a65f4a57
MH		 1319 struct wpa_scan_res *result, **tmp;
1320 size_t extra_len;
1321 u8 *pos;
6fc6879b 1322
a65f4a57
MH		 1323 extra_len = 2 + sr->isr_ssid_len;
1324 extra_len += 2 + sr->isr_nrates;
1325 extra_len += 3; /* ERP IE */
1326 extra_len += sr->isr_ie_len;
6fc6879b 1327
a65f4a57
MH		 1328 result = os_zalloc(sizeof(*result) + extra_len);
1329 if (result == NULL)
1330 return;
1331 os_memcpy(result->bssid, sr->isr_bssid, ETH_ALEN);
1332 result->freq = sr->isr_freq;
1333 result->beacon_int = sr->isr_intval;
1334 result->caps = sr->isr_capinfo;
1335 result->qual = sr->isr_rssi;
1336 result->noise = sr->isr_noise;
6fc6879b 1337
a65f4a57 1338 pos = (u8 *)(result + 1);
6fc6879b 1339
a65f4a57
MH		 1340 *pos++ = WLAN_EID_SSID;
1341 *pos++ = sr->isr_ssid_len;
1342 os_memcpy(pos, sr + 1, sr->isr_ssid_len);
1343 pos += sr->isr_ssid_len;
6fc6879b 1344
a65f4a57
MH		 1345 /*
1346 * Deal all rates as supported rate.
1347 * Because net80211 doesn't report extended supported rate or not.
1348 */
1349 *pos++ = WLAN_EID_SUPP_RATES;
1350 *pos++ = sr->isr_nrates;
1351 os_memcpy(pos, sr->isr_rates, sr->isr_nrates);
1352 pos += sr->isr_nrates;
6fc6879b 1353
a65f4a57
MH		 1354 *pos++ = WLAN_EID_ERP_INFO;
1355 *pos++ = 1;
1356 *pos++ = sr->isr_erp;
6fc6879b 1357
a65f4a57
MH		 1358 os_memcpy(pos, (u8 *)(sr + 1) + sr->isr_ssid_len, sr->isr_ie_len);
1359 pos += sr->isr_ie_len;
6fc6879b 1360
a65f4a57
MH		 1361 result->ie_len = pos - (u8 *)(result + 1);
1362
1363 tmp = os_realloc(res->res,
1364 (res->num + 1) * sizeof(struct wpa_scan_res *));
1365 if (tmp == NULL) {
1366 os_free(result);
1367 return;
1368 }
1369 tmp[res->num++] = result;
1370 res->res = tmp;
6fc6879b
JM		 1371}
1372
a65f4a57
MH		 1373struct wpa_scan_results *
1374wpa_driver_bsd_get_scan_results2(void *priv)
6fc6879b 1375{
6fc6879b 1376 struct wpa_driver_bsd_data *drv = priv;
6fc6879b 1377 struct ieee80211req_scan_result *sr;
a65f4a57
MH		 1378 struct wpa_scan_results *res;
1379 int len, rest;
1380 uint8_t buf[24*1024], *pos;
6fc6879b 1381
a65f4a57 1382 len = get80211var(drv, IEEE80211_IOC_SCAN_RESULTS, buf, 24*1024);
6fc6879b 1383 if (len < 0)
a65f4a57
MH		 1384 return NULL;
1385
1386 res = os_zalloc(sizeof(*res));
1387 if (res == NULL)
1388 return NULL;
6fc6879b 1389
a65f4a57
MH		 1390 pos = buf;
1391 rest = len;
1392 while (rest >= sizeof(struct ieee80211req_scan_result)) {
1393 sr = (struct ieee80211req_scan_result *)pos;
1394 wpa_driver_bsd_add_scan_entry(res, sr);
1395 pos += sr->isr_len;
1396 rest -= sr->isr_len;
6fc6879b 1397 }
6fc6879b 1398
a65f4a57
MH		 1399 wpa_printf(MSG_DEBUG, "Received %d bytes of scan results (%lu BSSes)",
1400 len, (unsigned long)res->num);
6fc6879b 1401
a65f4a57 1402 return res;
6fc6879b
JM		 1403}
1404
1405static void *
1406wpa_driver_bsd_init(void *ctx, const char *ifname)
1407{
1408#define GETPARAM(drv, param, v) \
1409 (((v) = get80211param(drv, param)) != -1)
1410 struct wpa_driver_bsd_data *drv;
1411
1412 drv = os_zalloc(sizeof(*drv));
1413 if (drv == NULL)
1414 return NULL;
1415 /*
1416 * NB: We require the interface name be mappable to an index.
1417 * This implies we do not support having wpa_supplicant
1418 * wait for an interface to appear. This seems ok; that
1419 * doesn't belong here; it's really the job of devd.
1420 */
1421 drv->ifindex = if_nametoindex(ifname);
1422 if (drv->ifindex == 0) {
1423 wpa_printf(MSG_DEBUG, "%s: interface %s does not exist",
1424 __func__, ifname);
1425 goto fail1;
1426 }
1427 drv->sock = socket(PF_INET, SOCK_DGRAM, 0);
1428 if (drv->sock < 0)
1429 goto fail1;
1430 drv->route = socket(PF_ROUTE, SOCK_RAW, 0);
1431 if (drv->route < 0)
1432 goto fail;
1433 eloop_register_read_sock(drv->route,
1434 wpa_driver_bsd_event_receive, ctx, drv);
1435
1436 drv->ctx = ctx;
1437 os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
1438
1439 if (!GETPARAM(drv, IEEE80211_IOC_ROAMING, drv->prev_roaming)) {
1440 wpa_printf(MSG_DEBUG, "%s: failed to get roaming state: %s",
1441 __func__, strerror(errno));
1442 goto fail;
1443 }
1444 if (!GETPARAM(drv, IEEE80211_IOC_PRIVACY, drv->prev_privacy)) {
1445 wpa_printf(MSG_DEBUG, "%s: failed to get privacy state: %s",
1446 __func__, strerror(errno));
1447 goto fail;
1448 }
1449 if (!GETPARAM(drv, IEEE80211_IOC_WPA, drv->prev_wpa)) {
1450 wpa_printf(MSG_DEBUG, "%s: failed to get wpa state: %s",
1451 __func__, strerror(errno));
1452 goto fail;
1453 }
5197244a
MH		 1454
1455 if (bsd_set_mediaopt(drv->sock, drv->ifname, IFM_OMASK,
1456 0 /* STA */) < 0) {
1457 wpa_printf(MSG_ERROR, "%s: failed to set operation mode",
1458 __func__);
1459 goto fail;
1460 }
6fc6879b
JM		 1461 if (set80211param(drv, IEEE80211_IOC_ROAMING, IEEE80211_ROAMING_MANUAL) < 0) {
1462 wpa_printf(MSG_DEBUG, "%s: failed to set wpa_supplicant-based "
1463 "roaming: %s", __func__, strerror(errno));
1464 goto fail;
1465 }
1466
1467 if (set80211param(drv, IEEE80211_IOC_WPA, 1+2) < 0) {
1468 wpa_printf(MSG_DEBUG, "%s: failed to enable WPA support %s",
1469 __func__, strerror(errno));
1470 goto fail;
1471 }
1472
4a867032
JM		 1473 wpa_driver_bsd_set_wpa(drv, 1);
1474
6fc6879b
JM		 1475 return drv;
1476fail:
1477 close(drv->sock);
1478fail1:
1479 os_free(drv);
1480 return NULL;
1481#undef GETPARAM
1482}
1483
1484static void
1485wpa_driver_bsd_deinit(void *priv)
1486{
1487 struct wpa_driver_bsd_data *drv = priv;
6fc6879b 1488
4a867032 1489 wpa_driver_bsd_set_wpa(drv, 0);
6fc6879b
JM		 1490 eloop_unregister_read_sock(drv->route);
1491
1492 /* NB: mark interface down */
60bc3033 1493 wpa_driver_bsd_ctrl_iface(drv, 0);
6fc6879b
JM		 1494
1495 wpa_driver_bsd_set_wpa_internal(drv, drv->prev_wpa, drv->prev_privacy);
1496 if (set80211param(drv, IEEE80211_IOC_ROAMING, drv->prev_roaming) < 0)
1497 wpa_printf(MSG_DEBUG, "%s: failed to restore roaming state",
1498 __func__);
1499
1500 (void) close(drv->route); /* ioctl socket */
1501 (void) close(drv->sock); /* event socket */
1502 os_free(drv);
1503}
1504
1505
1506const struct wpa_driver_ops wpa_driver_bsd_ops = {
1507 .name = "bsd",
66d4085f 1508 .desc = "BSD 802.11 support",
6fc6879b
JM		 1509 .init = wpa_driver_bsd_init,
1510 .deinit = wpa_driver_bsd_deinit,
1511 .get_bssid = wpa_driver_bsd_get_bssid,
1512 .get_ssid = wpa_driver_bsd_get_ssid,
6fc6879b
JM		 1513 .set_key = wpa_driver_bsd_set_key,
1514 .set_countermeasures = wpa_driver_bsd_set_countermeasures,
c2e8d0a0 1515 .scan2 = wpa_driver_bsd_scan,
a65f4a57 1516 .get_scan_results2 = wpa_driver_bsd_get_scan_results2,
6fc6879b
JM		 1517 .deauthenticate = wpa_driver_bsd_deauthenticate,
1518 .disassociate = wpa_driver_bsd_disassociate,
1519 .associate = wpa_driver_bsd_associate,
6fc6879b 1520};
c5121837
JM		 1521
1522#endif /* HOSTAPD */
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