2 * WPA Supplicant - driver interaction with BSD net80211 layer
3 * Copyright (c) 2004, Sam Leffler <sam@errno.com>
4 * Copyright (c) 2004, 2Wire, Inc
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.
10 * Alternatively, this software may be distributed under the terms of BSD
13 * See README and COPYING for more details.
17 #include <sys/ioctl.h>
22 #include "common/ieee802_11_defs.h"
25 #include <net/if_media.h>
28 #include <net/if_ether.h>
30 #include <net/ethernet.h>
32 #include <net/route.h>
35 #include <netproto/802_11/ieee80211_ioctl.h>
36 #include <netproto/802_11/ieee80211_dragonfly.h>
37 #else /* __DragonFly__ */
38 #include <net80211/ieee80211.h>
39 #include <net80211/ieee80211_ioctl.h>
40 #include <net80211/ieee80211_crypto.h>
41 #endif /* __DragonFly__ */
43 #include <net80211/ieee80211_freebsd.h>
46 #include <net80211/ieee80211_netbsd.h>
49 #include "l2_packet/l2_packet.h"
51 struct bsd_driver_data {
52 struct hostapd_data *hapd; /* back pointer */
54 int sock; /* open socket for 802.11 ioctls */
55 struct l2_packet_data *sock_xmit;/* raw packet xmit socket */
56 int route; /* routing socket for events */
57 char ifname[IFNAMSIZ+1]; /* interface name */
58 unsigned int ifindex; /* interface index */
60 struct wpa_driver_capa capa; /* driver capability */
61 int is_ap; /* Access point mode */
62 int prev_roaming; /* roaming state to restore on deinit */
63 int prev_privacy; /* privacy state to restore on deinit */
64 int prev_wpa; /* wpa state to restore on deinit */
67 /* Generic functions for hostapd and wpa_supplicant */
70 bsd_set80211(void *priv, int op, int val, const void *arg, int arg_len)
72 struct bsd_driver_data *drv = priv;
73 struct ieee80211req ireq;
75 os_memset(&ireq, 0, sizeof(ireq));
76 os_strlcpy(ireq.i_name, drv->ifname, sizeof(ireq.i_name));
79 ireq.i_data = (void *) arg;
82 if (ioctl(drv->sock, SIOCS80211, &ireq) < 0) {
83 wpa_printf(MSG_ERROR, "ioctl[SIOCS80211, op=%u, val=%u, "
84 "arg_len=%u]: %s", op, val, arg_len,
92 bsd_get80211(void *priv, struct ieee80211req *ireq, int op, void *arg,
95 struct bsd_driver_data *drv = priv;
97 os_memset(ireq, 0, sizeof(*ireq));
98 os_strlcpy(ireq->i_name, drv->ifname, sizeof(ireq->i_name));
100 ireq->i_len = arg_len;
103 if (ioctl(drv->sock, SIOCG80211, ireq) < 0) {
104 wpa_printf(MSG_ERROR, "ioctl[SIOCS80211, op=%u, "
105 "arg_len=%u]: %s", op, arg_len, strerror(errno));
112 get80211var(struct bsd_driver_data *drv, int op, void *arg, int arg_len)
114 struct ieee80211req ireq;
116 if (bsd_get80211(drv, &ireq, op, arg, arg_len) < 0)
122 set80211var(struct bsd_driver_data *drv, int op, const void *arg, int arg_len)
124 return bsd_set80211(drv, op, 0, arg, arg_len);
128 set80211param(struct bsd_driver_data *drv, int op, int arg)
130 return bsd_set80211(drv, op, arg, NULL, 0);
134 bsd_get_ssid(const char *ifname, void *priv, u8 *ssid, int len)
136 struct bsd_driver_data *drv = priv;
137 #ifdef SIOCG80211NWID
138 struct ieee80211_nwid nwid;
141 os_memset(&ifr, 0, sizeof(ifr));
142 os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
143 ifr.ifr_data = (void *)&nwid;
144 if (ioctl(drv->sock, SIOCG80211NWID, &ifr) < 0 ||
145 nwid.i_len > IEEE80211_NWID_LEN)
147 os_memcpy(ssid, nwid.i_nwid, nwid.i_len);
150 return get80211var(drv, IEEE80211_IOC_SSID, ssid, IEEE80211_NWID_LEN);
155 bsd_set_ssid(const char *ifname, void *priv, const u8 *ssid, int ssid_len)
157 struct bsd_driver_data *drv = priv;
158 #ifdef SIOCS80211NWID
159 struct ieee80211_nwid nwid;
162 os_memcpy(nwid.i_nwid, ssid, ssid_len);
163 nwid.i_len = ssid_len;
164 os_memset(&ifr, 0, sizeof(ifr));
165 os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
166 ifr.ifr_data = (void *)&nwid;
167 return ioctl(drv->sock, SIOCS80211NWID, &ifr);
169 return set80211var(drv, IEEE80211_IOC_SSID, ssid, ssid_len);
174 bsd_get_if_media(void *priv)
176 struct bsd_driver_data *drv = priv;
177 struct ifmediareq ifmr;
179 os_memset(&ifmr, 0, sizeof(ifmr));
180 os_strlcpy(ifmr.ifm_name, drv->ifname, sizeof(ifmr.ifm_name));
182 if (ioctl(drv->sock, SIOCGIFMEDIA, &ifmr) < 0) {
183 wpa_printf(MSG_ERROR, "%s: SIOCGIFMEDIA %s", __func__,
188 return ifmr.ifm_current;
192 bsd_set_if_media(void *priv, int media)
194 struct bsd_driver_data *drv = priv;
197 os_memset(&ifr, 0, sizeof(ifr));
198 os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
199 ifr.ifr_media = media;
201 if (ioctl(drv->sock, SIOCSIFMEDIA, &ifr) < 0) {
202 wpa_printf(MSG_ERROR, "%s: SIOCSIFMEDIA %s", __func__,
211 bsd_set_mediaopt(void *priv, uint32_t mask, uint32_t mode)
213 int media = bsd_get_if_media(priv);
219 if (bsd_set_if_media(priv, media) < 0)
225 bsd_del_key(void *priv, const u8 *addr, int key_idx)
227 struct ieee80211req_del_key wk;
229 os_memset(&wk, 0, sizeof(wk));
231 wpa_printf(MSG_DEBUG, "%s: key_idx=%d", __func__, key_idx);
232 wk.idk_keyix = key_idx;
234 wpa_printf(MSG_DEBUG, "%s: addr=" MACSTR, __func__,
236 os_memcpy(wk.idk_macaddr, addr, IEEE80211_ADDR_LEN);
237 wk.idk_keyix = (u_int8_t) IEEE80211_KEYIX_NONE; /* XXX */
240 return set80211var(priv, IEEE80211_IOC_DELKEY, &wk, sizeof(wk));
244 bsd_send_mlme_param(void *priv, const u8 op, const u16 reason, const u8 *addr)
246 struct ieee80211req_mlme mlme;
248 os_memset(&mlme, 0, sizeof(mlme));
250 mlme.im_reason = reason;
251 os_memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
252 return set80211var(priv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme));
256 bsd_ctrl_iface(void *priv, int enable)
258 struct bsd_driver_data *drv = priv;
261 os_memset(&ifr, 0, sizeof(ifr));
262 os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
264 if (ioctl(drv->sock, SIOCGIFFLAGS, &ifr) < 0) {
265 perror("ioctl[SIOCGIFFLAGS]");
270 ifr.ifr_flags |= IFF_UP;
272 ifr.ifr_flags &= ~IFF_UP;
274 if (ioctl(drv->sock, SIOCSIFFLAGS, &ifr) < 0) {
275 perror("ioctl[SIOCSIFFLAGS]");
283 bsd_set_key(const char *ifname, void *priv, enum wpa_alg alg,
284 const unsigned char *addr, int key_idx, int set_tx, const u8 *seq,
285 size_t seq_len, const u8 *key, size_t key_len)
287 struct ieee80211req_key wk;
289 wpa_printf(MSG_DEBUG, "%s: alg=%d addr=%p key_idx=%d set_tx=%d "
290 "seq_len=%zu key_len=%zu", __func__, alg, addr, key_idx,
291 set_tx, seq_len, key_len);
293 if (alg == WPA_ALG_NONE) {
296 os_memcmp(addr, "\xff\xff\xff\xff\xff\xff",
297 IEEE80211_ADDR_LEN) == 0)
298 return bsd_del_key(priv, NULL, key_idx);
301 return bsd_del_key(priv, addr, key_idx);
304 os_memset(&wk, 0, sizeof(wk));
307 wk.ik_type = IEEE80211_CIPHER_WEP;
310 wk.ik_type = IEEE80211_CIPHER_TKIP;
313 wk.ik_type = IEEE80211_CIPHER_AES_CCM;
316 wpa_printf(MSG_ERROR, "%s: unknown alg=%d", __func__, alg);
320 wk.ik_flags = IEEE80211_KEY_RECV;
322 wk.ik_flags |= IEEE80211_KEY_XMIT;
325 os_memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
326 wk.ik_keyix = key_idx;
328 os_memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
330 * Deduce whether group/global or unicast key by checking
331 * the address (yech). Note also that we can only mark global
332 * keys default; doing this for a unicast key is an error.
334 if (os_memcmp(addr, "\xff\xff\xff\xff\xff\xff",
335 IEEE80211_ADDR_LEN) == 0) {
336 wk.ik_flags |= IEEE80211_KEY_GROUP;
337 wk.ik_keyix = key_idx;
339 wk.ik_keyix = key_idx == 0 ? IEEE80211_KEYIX_NONE :
343 if (wk.ik_keyix != IEEE80211_KEYIX_NONE && set_tx)
344 wk.ik_flags |= IEEE80211_KEY_DEFAULT;
345 wk.ik_keylen = key_len;
346 os_memcpy(&wk.ik_keyrsc, seq, seq_len);
347 os_memcpy(wk.ik_keydata, key, key_len);
349 return set80211var(priv, IEEE80211_IOC_WPAKEY, &wk, sizeof(wk));
353 bsd_configure_wpa(void *priv, struct wpa_bss_params *params)
355 #ifndef IEEE80211_IOC_APPIE
356 static const char *ciphernames[] =
357 { "WEP", "TKIP", "AES-OCB", "AES-CCM", "CKIP", "NONE" };
360 switch (params->wpa_group) {
361 case WPA_CIPHER_CCMP:
362 v = IEEE80211_CIPHER_AES_CCM;
364 case WPA_CIPHER_TKIP:
365 v = IEEE80211_CIPHER_TKIP;
367 case WPA_CIPHER_WEP104:
368 v = IEEE80211_CIPHER_WEP;
370 case WPA_CIPHER_WEP40:
371 v = IEEE80211_CIPHER_WEP;
373 case WPA_CIPHER_NONE:
374 v = IEEE80211_CIPHER_NONE;
377 printf("Unknown group key cipher %u\n",
381 wpa_printf(MSG_DEBUG, "%s: group key cipher=%s (%u)",
382 __func__, ciphernames[v], v);
383 if (set80211param(priv, IEEE80211_IOC_MCASTCIPHER, v)) {
384 printf("Unable to set group key cipher to %u (%s)\n",
388 if (v == IEEE80211_CIPHER_WEP) {
389 /* key length is done only for specific ciphers */
390 v = (params->wpa_group == WPA_CIPHER_WEP104 ? 13 : 5);
391 if (set80211param(priv, IEEE80211_IOC_MCASTKEYLEN, v)) {
392 printf("Unable to set group key length to %u\n", v);
398 if (params->wpa_pairwise & WPA_CIPHER_CCMP)
399 v |= 1<<IEEE80211_CIPHER_AES_CCM;
400 if (params->wpa_pairwise & WPA_CIPHER_TKIP)
401 v |= 1<<IEEE80211_CIPHER_TKIP;
402 if (params->wpa_pairwise & WPA_CIPHER_NONE)
403 v |= 1<<IEEE80211_CIPHER_NONE;
404 wpa_printf(MSG_DEBUG, "%s: pairwise key ciphers=0x%x", __func__, v);
405 if (set80211param(priv, IEEE80211_IOC_UCASTCIPHERS, v)) {
406 printf("Unable to set pairwise key ciphers to 0x%x\n", v);
410 wpa_printf(MSG_DEBUG, "%s: key management algorithms=0x%x",
411 __func__, params->wpa_key_mgmt);
412 if (set80211param(priv, IEEE80211_IOC_KEYMGTALGS,
413 params->wpa_key_mgmt)) {
414 printf("Unable to set key management algorithms to 0x%x\n",
415 params->wpa_key_mgmt);
420 if (params->rsn_preauth)
422 wpa_printf(MSG_DEBUG, "%s: rsn capabilities=0x%x",
423 __func__, params->rsn_preauth);
424 if (set80211param(priv, IEEE80211_IOC_RSNCAPS, v)) {
425 printf("Unable to set RSN capabilities to 0x%x\n", v);
428 #endif /* IEEE80211_IOC_APPIE */
430 wpa_printf(MSG_DEBUG, "%s: enable WPA= 0x%x", __func__, params->wpa);
431 if (set80211param(priv, IEEE80211_IOC_WPA, params->wpa)) {
432 printf("Unable to set WPA to %u\n", params->wpa);
439 bsd_set_ieee8021x(void *priv, struct wpa_bss_params *params)
441 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, params->enabled);
443 if (!params->enabled) {
444 /* XXX restore state */
445 return set80211param(priv, IEEE80211_IOC_AUTHMODE,
446 IEEE80211_AUTH_AUTO);
448 if (!params->wpa && !params->ieee802_1x) {
449 wpa_printf(MSG_ERROR, "%s: No 802.1X or WPA enabled",
453 if (params->wpa && bsd_configure_wpa(priv, params) != 0) {
454 wpa_printf(MSG_ERROR, "%s: Failed to configure WPA state",
458 if (set80211param(priv, IEEE80211_IOC_AUTHMODE,
459 (params->wpa ? IEEE80211_AUTH_WPA : IEEE80211_AUTH_8021X))) {
460 wpa_printf(MSG_ERROR, "%s: Failed to enable WPA/802.1X",
464 return bsd_ctrl_iface(priv, 1);
468 bsd_set_sta_authorized(void *priv, const u8 *addr, int total_flags,
469 int flags_or, int flags_and)
473 /* For now, only support setting Authorized flag */
474 if (flags_or & WPA_STA_AUTHORIZED)
476 if (!(flags_and & WPA_STA_AUTHORIZED))
482 return bsd_send_mlme_param(priv, authorized ?
483 IEEE80211_MLME_AUTHORIZE :
484 IEEE80211_MLME_UNAUTHORIZE, 0, addr);
488 bsd_new_sta(void *priv, void *ctx, u8 addr[IEEE80211_ADDR_LEN])
490 struct ieee80211req_wpaie ie;
495 * Fetch and validate any negotiated WPA/RSN parameters.
497 memset(&ie, 0, sizeof(ie));
498 memcpy(ie.wpa_macaddr, addr, IEEE80211_ADDR_LEN);
499 if (get80211var(priv, IEEE80211_IOC_WPAIE, &ie, sizeof(ie)) < 0) {
500 printf("Failed to get WPA/RSN information element.\n");
504 ielen = ie.wpa_ie[1];
511 drv_event_assoc(ctx, addr, iebuf, ielen);
515 bsd_send_eapol(void *priv, const u8 *addr, const u8 *data, size_t data_len,
516 int encrypt, const u8 *own_addr)
518 struct bsd_driver_data *drv = priv;
520 wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", data, data_len);
522 return l2_packet_send(drv->sock_xmit, addr, ETH_P_EAPOL, data,
527 bsd_set_freq(void *priv, u16 channel)
529 struct bsd_driver_data *drv = priv;
530 #ifdef SIOCS80211CHANNEL
531 struct ieee80211chanreq creq;
532 #endif /* SIOCS80211CHANNEL */
536 mode = IFM_IEEE80211_11G;
537 else if (channel == 14)
538 mode = IFM_IEEE80211_11B;
540 mode = IFM_IEEE80211_11A;
541 if (bsd_set_mediaopt(drv, IFM_MMASK, mode) < 0) {
542 wpa_printf(MSG_ERROR, "%s: failed to set modulation mode",
547 #ifdef SIOCS80211CHANNEL
548 os_memset(&creq, 0, sizeof(creq));
549 os_strlcpy(creq.i_name, drv->ifname, sizeof(creq.i_name));
550 creq.i_channel = channel;
551 return ioctl(drv->sock, SIOCS80211CHANNEL, &creq);
552 #else /* SIOCS80211CHANNEL */
553 return set80211param(priv, IEEE80211_IOC_CHANNEL, channel);
554 #endif /* SIOCS80211CHANNEL */
558 bsd_set_opt_ie(const char *ifname, void *priv, const u8 *ie, size_t ie_len)
560 #ifdef IEEE80211_IOC_APPIE
561 wpa_printf(MSG_DEBUG, "%s: set WPA+RSN ie (len %lu)", __func__,
562 (unsigned long)ie_len);
563 return bsd_set80211(priv, IEEE80211_IOC_APPIE, IEEE80211_APPIE_WPA,
565 #endif /* IEEE80211_IOC_APPIE */
573 * Avoid conflicts with hostapd definitions by undefining couple of defines
574 * from net80211 header files.
580 static int bsd_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
584 ether_sprintf(const u8 *addr)
586 static char buf[sizeof(MACSTR)];
589 snprintf(buf, sizeof(buf), MACSTR, MAC2STR(addr));
591 snprintf(buf, sizeof(buf), MACSTR, 0,0,0,0,0,0);
596 bsd_set_privacy(const char *ifname, void *priv, int enabled)
598 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
600 return set80211param(priv, IEEE80211_IOC_PRIVACY, enabled);
604 bsd_get_seqnum(const char *ifname, void *priv, const u8 *addr, int idx,
607 struct ieee80211req_key wk;
609 wpa_printf(MSG_DEBUG, "%s: addr=%s idx=%d",
610 __func__, ether_sprintf(addr), idx);
612 memset(&wk, 0, sizeof(wk));
614 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
616 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
619 if (get80211var(priv, IEEE80211_IOC_WPAKEY, &wk, sizeof(wk)) < 0) {
620 printf("Failed to get encryption.\n");
624 #ifdef WORDS_BIGENDIAN
627 * wk.ik_keytsc is in host byte order (big endian), need to
628 * swap it to match with the byte order used in WPA.
631 u8 tmp[WPA_KEY_RSC_LEN];
632 memcpy(tmp, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
633 for (i = 0; i < WPA_KEY_RSC_LEN; i++) {
634 seq[i] = tmp[WPA_KEY_RSC_LEN - i - 1];
637 #else /* WORDS_BIGENDIAN */
638 memcpy(seq, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
639 #endif /* WORDS_BIGENDIAN */
645 bsd_flush(void *priv)
647 u8 allsta[IEEE80211_ADDR_LEN];
649 memset(allsta, 0xff, IEEE80211_ADDR_LEN);
650 return bsd_sta_deauth(priv, NULL, allsta, IEEE80211_REASON_AUTH_LEAVE);
655 bsd_read_sta_driver_data(void *priv, struct hostap_sta_driver_data *data,
658 struct ieee80211req_sta_stats stats;
660 memcpy(stats.is_u.macaddr, addr, IEEE80211_ADDR_LEN);
661 if (get80211var(priv, IEEE80211_IOC_STA_STATS, &stats, sizeof(stats))
663 /* XXX? do packets counts include non-data frames? */
664 data->rx_packets = stats.is_stats.ns_rx_data;
665 data->rx_bytes = stats.is_stats.ns_rx_bytes;
666 data->tx_packets = stats.is_stats.ns_tx_data;
667 data->tx_bytes = stats.is_stats.ns_tx_bytes;
673 bsd_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, int reason_code)
675 return bsd_send_mlme_param(priv, IEEE80211_MLME_DEAUTH, reason_code,
680 bsd_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
683 return bsd_send_mlme_param(priv, IEEE80211_MLME_DISASSOC, reason_code,
688 bsd_wireless_event_receive(int sock, void *ctx, void *sock_ctx)
690 struct bsd_driver_data *drv = ctx;
692 struct if_announcemsghdr *ifan;
693 struct rt_msghdr *rtm;
694 struct ieee80211_michael_event *mic;
695 struct ieee80211_join_event *join;
696 struct ieee80211_leave_event *leave;
698 union wpa_event_data data;
700 n = read(sock, buf, sizeof(buf));
702 if (errno != EINTR && errno != EAGAIN)
703 perror("read(PF_ROUTE)");
707 rtm = (struct rt_msghdr *) buf;
708 if (rtm->rtm_version != RTM_VERSION) {
709 wpa_printf(MSG_DEBUG, "Routing message version %d not "
710 "understood\n", rtm->rtm_version);
713 ifan = (struct if_announcemsghdr *) rtm;
714 switch (rtm->rtm_type) {
716 switch (ifan->ifan_what) {
717 case RTM_IEEE80211_ASSOC:
718 case RTM_IEEE80211_REASSOC:
719 case RTM_IEEE80211_DISASSOC:
720 case RTM_IEEE80211_SCAN:
722 case RTM_IEEE80211_LEAVE:
723 leave = (struct ieee80211_leave_event *) &ifan[1];
724 drv_event_disassoc(drv->hapd, leave->iev_addr);
726 case RTM_IEEE80211_JOIN:
727 #ifdef RTM_IEEE80211_REJOIN
728 case RTM_IEEE80211_REJOIN:
730 join = (struct ieee80211_join_event *) &ifan[1];
731 bsd_new_sta(drv, drv->hapd, join->iev_addr);
733 case RTM_IEEE80211_REPLAY:
736 case RTM_IEEE80211_MICHAEL:
737 mic = (struct ieee80211_michael_event *) &ifan[1];
738 wpa_printf(MSG_DEBUG,
739 "Michael MIC failure wireless event: "
740 "keyix=%u src_addr=" MACSTR, mic->iev_keyix,
741 MAC2STR(mic->iev_src));
742 os_memset(&data, 0, sizeof(data));
743 data.michael_mic_failure.unicast = 1;
744 data.michael_mic_failure.src = mic->iev_src;
745 wpa_supplicant_event(drv->hapd,
746 EVENT_MICHAEL_MIC_FAILURE, &data);
754 handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
756 struct bsd_driver_data *drv = ctx;
757 drv_event_eapol_rx(drv->hapd, src_addr, buf, len);
761 hostapd_bsd_set_freq(void *priv, struct hostapd_freq_params *freq)
763 return bsd_set_freq(priv, freq->channel);
767 bsd_init(struct hostapd_data *hapd, struct wpa_init_params *params)
769 struct bsd_driver_data *drv;
771 drv = os_zalloc(sizeof(struct bsd_driver_data));
773 printf("Could not allocate memory for bsd driver data\n");
778 drv->sock = socket(PF_INET, SOCK_DGRAM, 0);
780 perror("socket[PF_INET,SOCK_DGRAM]");
783 os_strlcpy(drv->ifname, params->ifname, sizeof(drv->ifname));
785 drv->sock_xmit = l2_packet_init(drv->ifname, NULL, ETH_P_EAPOL,
786 handle_read, drv, 0);
787 if (drv->sock_xmit == NULL)
789 if (l2_packet_get_own_addr(drv->sock_xmit, params->own_addr))
792 /* mark down during setup */
793 if (bsd_ctrl_iface(drv, 0) < 0)
796 drv->route = socket(PF_ROUTE, SOCK_RAW, 0);
797 if (drv->route < 0) {
798 perror("socket(PF_ROUTE,SOCK_RAW)");
801 eloop_register_read_sock(drv->route, bsd_wireless_event_receive, drv,
804 if (bsd_set_mediaopt(drv, IFM_OMASK, IFM_IEEE80211_HOSTAP) < 0) {
805 wpa_printf(MSG_ERROR, "%s: failed to set operation mode",
812 if (drv->sock_xmit != NULL)
813 l2_packet_deinit(drv->sock_xmit);
823 bsd_deinit(void *priv)
825 struct bsd_driver_data *drv = priv;
827 if (drv->route >= 0) {
828 eloop_unregister_read_sock(drv->route);
831 bsd_ctrl_iface(drv, 0);
834 if (drv->sock_xmit != NULL)
835 l2_packet_deinit(drv->sock_xmit);
842 get80211param(struct bsd_driver_data *drv, int op)
844 struct ieee80211req ireq;
846 if (bsd_get80211(drv, &ireq, op, NULL, 0) < 0)
852 wpa_driver_bsd_get_bssid(void *priv, u8 *bssid)
854 struct bsd_driver_data *drv = priv;
855 #ifdef SIOCG80211BSSID
856 struct ieee80211_bssid bs;
858 os_strlcpy(bs.i_name, drv->ifname, sizeof(bs.i_name));
859 if (ioctl(drv->sock, SIOCG80211BSSID, &bs) < 0)
861 os_memcpy(bssid, bs.i_bssid, sizeof(bs.i_bssid));
864 return get80211var(drv, IEEE80211_IOC_BSSID,
865 bssid, IEEE80211_ADDR_LEN) < 0 ? -1 : 0;
870 wpa_driver_bsd_get_ssid(void *priv, u8 *ssid)
872 struct bsd_driver_data *drv = priv;
873 return bsd_get_ssid(drv->ifname, drv, ssid, 0);
877 wpa_driver_bsd_set_wpa_ie(struct bsd_driver_data *drv, const u8 *wpa_ie,
880 #ifdef IEEE80211_IOC_APPIE
881 return bsd_set_opt_ie(drv->ifname, drv, wpa_ie, wpa_ie_len);
882 #else /* IEEE80211_IOC_APPIE */
883 return set80211var(drv, IEEE80211_IOC_OPTIE, wpa_ie, wpa_ie_len);
884 #endif /* IEEE80211_IOC_APPIE */
888 wpa_driver_bsd_set_wpa_internal(void *priv, int wpa, int privacy)
892 wpa_printf(MSG_DEBUG, "%s: wpa=%d privacy=%d",
893 __FUNCTION__, wpa, privacy);
895 if (!wpa && wpa_driver_bsd_set_wpa_ie(priv, NULL, 0) < 0)
897 if (set80211param(priv, IEEE80211_IOC_PRIVACY, privacy) < 0)
899 if (set80211param(priv, IEEE80211_IOC_WPA, wpa) < 0)
906 wpa_driver_bsd_set_wpa(void *priv, int enabled)
908 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
910 return wpa_driver_bsd_set_wpa_internal(priv, enabled ? 3 : 0, enabled);
914 wpa_driver_bsd_set_countermeasures(void *priv, int enabled)
916 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
917 return set80211param(priv, IEEE80211_IOC_COUNTERMEASURES, enabled);
922 wpa_driver_bsd_set_drop_unencrypted(void *priv, int enabled)
924 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
925 return set80211param(priv, IEEE80211_IOC_DROPUNENCRYPTED, enabled);
929 wpa_driver_bsd_deauthenticate(void *priv, const u8 *addr, int reason_code)
931 return bsd_send_mlme_param(priv, IEEE80211_MLME_DEAUTH, reason_code,
936 wpa_driver_bsd_disassociate(void *priv, const u8 *addr, int reason_code)
938 return bsd_send_mlme_param(priv, IEEE80211_MLME_DISASSOC, reason_code,
943 wpa_driver_bsd_set_auth_alg(void *priv, int auth_alg)
947 if ((auth_alg & WPA_AUTH_ALG_OPEN) &&
948 (auth_alg & WPA_AUTH_ALG_SHARED))
949 authmode = IEEE80211_AUTH_AUTO;
950 else if (auth_alg & WPA_AUTH_ALG_SHARED)
951 authmode = IEEE80211_AUTH_SHARED;
953 authmode = IEEE80211_AUTH_OPEN;
955 return set80211param(priv, IEEE80211_IOC_AUTHMODE, authmode);
959 handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
961 struct bsd_driver_data *drv = ctx;
963 drv_event_eapol_rx(drv->ctx, src_addr, buf, len);
967 wpa_driver_bsd_associate(void *priv, struct wpa_driver_associate_params *params)
969 struct bsd_driver_data *drv = priv;
970 struct ieee80211req_mlme mlme;
976 wpa_printf(MSG_DEBUG,
977 "%s: ssid '%.*s' wpa ie len %u pairwise %u group %u key mgmt %u"
979 , (unsigned int) params->ssid_len, params->ssid
980 , (unsigned int) params->wpa_ie_len
981 , params->pairwise_suite
982 , params->group_suite
983 , params->key_mgmt_suite
986 switch (params->mode) {
987 case IEEE80211_MODE_INFRA:
990 case IEEE80211_MODE_IBSS:
991 mode = IFM_IEEE80211_IBSS;
993 case IEEE80211_MODE_AP:
994 mode = IFM_IEEE80211_HOSTAP;
997 wpa_printf(MSG_ERROR, "%s: unknown operation mode", __func__);
1000 if (bsd_set_mediaopt(drv, IFM_OMASK, mode) < 0) {
1001 wpa_printf(MSG_ERROR, "%s: failed to set operation mode",
1006 if (params->mode == IEEE80211_MODE_AP) {
1007 if (params->freq >= 2412 && params->freq <= 2472)
1008 channel = (params->freq - 2407) / 5;
1009 else if (params->freq == 2484)
1011 else if ((params->freq >= 5180 && params->freq <= 5240) ||
1012 (params->freq >= 5745 && params->freq <= 5825))
1013 channel = (params->freq - 5000) / 5;
1016 if (bsd_set_freq(drv, channel) < 0)
1019 drv->sock_xmit = l2_packet_init(drv->ifname, NULL, ETH_P_EAPOL,
1020 handle_read, drv, 0);
1021 if (drv->sock_xmit == NULL)
1027 if (wpa_driver_bsd_set_drop_unencrypted(drv, params->drop_unencrypted)
1030 if (wpa_driver_bsd_set_auth_alg(drv, params->auth_alg) < 0)
1032 /* XXX error handling is wrong but unclear what to do... */
1033 if (wpa_driver_bsd_set_wpa_ie(drv, params->wpa_ie, params->wpa_ie_len) < 0)
1036 privacy = !(params->pairwise_suite == CIPHER_NONE &&
1037 params->group_suite == CIPHER_NONE &&
1038 params->key_mgmt_suite == KEY_MGMT_NONE &&
1039 params->wpa_ie_len == 0);
1040 wpa_printf(MSG_DEBUG, "%s: set PRIVACY %u", __func__, privacy);
1042 if (set80211param(drv, IEEE80211_IOC_PRIVACY, privacy) < 0)
1045 if (params->wpa_ie_len &&
1046 set80211param(drv, IEEE80211_IOC_WPA,
1047 params->wpa_ie[0] == WLAN_EID_RSN ? 2 : 1) < 0)
1050 os_memset(&mlme, 0, sizeof(mlme));
1051 mlme.im_op = IEEE80211_MLME_ASSOC;
1052 if (params->ssid != NULL)
1053 os_memcpy(mlme.im_ssid, params->ssid, params->ssid_len);
1054 mlme.im_ssid_len = params->ssid_len;
1055 if (params->bssid != NULL)
1056 os_memcpy(mlme.im_macaddr, params->bssid, IEEE80211_ADDR_LEN);
1057 if (set80211var(drv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme)) < 0)
1063 wpa_driver_bsd_scan(void *priv, struct wpa_driver_scan_params *params)
1065 struct bsd_driver_data *drv = priv;
1066 #ifdef IEEE80211_IOC_SCAN_MAX_SSID
1067 struct ieee80211_scan_req sr;
1069 #endif /* IEEE80211_IOC_SCAN_MAX_SSID */
1071 if (bsd_set_mediaopt(drv, IFM_OMASK, 0 /* STA */) < 0) {
1072 wpa_printf(MSG_ERROR, "%s: failed to set operation mode",
1077 if (set80211param(drv, IEEE80211_IOC_ROAMING,
1078 IEEE80211_ROAMING_MANUAL) < 0) {
1079 wpa_printf(MSG_ERROR, "%s: failed to set "
1080 "wpa_supplicant-based roaming: %s", __func__,
1085 if (wpa_driver_bsd_set_wpa(drv, 1) < 0) {
1086 wpa_printf(MSG_ERROR, "%s: failed to set wpa: %s", __func__,
1091 /* NB: interface must be marked UP to do a scan */
1092 if (bsd_ctrl_iface(drv, 1) < 0)
1095 #ifdef IEEE80211_IOC_SCAN_MAX_SSID
1096 os_memset(&sr, 0, sizeof(sr));
1097 sr.sr_flags = IEEE80211_IOC_SCAN_ACTIVE | IEEE80211_IOC_SCAN_ONCE |
1098 IEEE80211_IOC_SCAN_NOJOIN;
1099 sr.sr_duration = IEEE80211_IOC_SCAN_FOREVER;
1100 if (params->num_ssids > 0) {
1101 sr.sr_nssid = params->num_ssids;
1103 /* Boundary check is done by upper layer */
1104 if (sr.sr_nssid > IEEE80211_IOC_SCAN_MAX_SSID)
1105 sr.sr_nssid = IEEE80211_IOC_SCAN_MAX_SSID;
1108 /* NB: check scan cache first */
1109 sr.sr_flags |= IEEE80211_IOC_SCAN_CHECK;
1111 for (i = 0; i < sr.sr_nssid; i++) {
1112 sr.sr_ssid[i].len = params->ssids[i].ssid_len;
1113 os_memcpy(sr.sr_ssid[i].ssid, params->ssids[i].ssid,
1117 /* NB: net80211 delivers a scan complete event so no need to poll */
1118 return set80211var(drv, IEEE80211_IOC_SCAN_REQ, &sr, sizeof(sr));
1119 #else /* IEEE80211_IOC_SCAN_MAX_SSID */
1120 /* set desired ssid before scan */
1121 if (bsd_set_ssid(drv->ifname, drv, params->ssids[0].ssid,
1122 params->ssids[0].ssid_len) < 0)
1125 /* NB: net80211 delivers a scan complete event so no need to poll */
1126 return set80211param(drv, IEEE80211_IOC_SCAN_REQ, 0);
1127 #endif /* IEEE80211_IOC_SCAN_MAX_SSID */
1131 wpa_driver_bsd_event_receive(int sock, void *ctx, void *sock_ctx)
1133 struct bsd_driver_data *drv = sock_ctx;
1135 struct if_announcemsghdr *ifan;
1136 struct if_msghdr *ifm;
1137 struct rt_msghdr *rtm;
1138 union wpa_event_data event;
1139 struct ieee80211_michael_event *mic;
1140 struct ieee80211_leave_event *leave;
1141 struct ieee80211_join_event *join;
1144 n = read(sock, buf, sizeof(buf));
1146 if (errno != EINTR && errno != EAGAIN)
1147 perror("read(PF_ROUTE)");
1151 rtm = (struct rt_msghdr *) buf;
1152 if (rtm->rtm_version != RTM_VERSION) {
1153 wpa_printf(MSG_DEBUG, "Routing message version %d not "
1154 "understood\n", rtm->rtm_version);
1157 os_memset(&event, 0, sizeof(event));
1158 switch (rtm->rtm_type) {
1159 case RTM_IFANNOUNCE:
1160 ifan = (struct if_announcemsghdr *) rtm;
1161 if (ifan->ifan_index != drv->ifindex)
1163 strlcpy(event.interface_status.ifname, drv->ifname,
1164 sizeof(event.interface_status.ifname));
1165 switch (ifan->ifan_what) {
1166 case IFAN_DEPARTURE:
1167 event.interface_status.ievent = EVENT_INTERFACE_REMOVED;
1171 wpa_printf(MSG_DEBUG, "RTM_IFANNOUNCE: Interface '%s' %s",
1172 event.interface_status.ifname,
1173 ifan->ifan_what == IFAN_DEPARTURE ?
1174 "removed" : "added");
1175 wpa_supplicant_event(ctx, EVENT_INTERFACE_STATUS, &event);
1178 ifan = (struct if_announcemsghdr *) rtm;
1179 if (ifan->ifan_index != drv->ifindex)
1181 switch (ifan->ifan_what) {
1182 case RTM_IEEE80211_ASSOC:
1183 case RTM_IEEE80211_REASSOC:
1186 wpa_supplicant_event(ctx, EVENT_ASSOC, NULL);
1188 case RTM_IEEE80211_DISASSOC:
1191 wpa_supplicant_event(ctx, EVENT_DISASSOC, NULL);
1193 case RTM_IEEE80211_SCAN:
1196 wpa_supplicant_event(ctx, EVENT_SCAN_RESULTS, NULL);
1198 case RTM_IEEE80211_LEAVE:
1199 leave = (struct ieee80211_leave_event *) &ifan[1];
1200 drv_event_disassoc(ctx, leave->iev_addr);
1202 case RTM_IEEE80211_JOIN:
1203 #ifdef RTM_IEEE80211_REJOIN
1204 case RTM_IEEE80211_REJOIN:
1206 join = (struct ieee80211_join_event *) &ifan[1];
1207 bsd_new_sta(drv, ctx, join->iev_addr);
1209 case RTM_IEEE80211_REPLAY:
1212 case RTM_IEEE80211_MICHAEL:
1213 mic = (struct ieee80211_michael_event *) &ifan[1];
1214 wpa_printf(MSG_DEBUG,
1215 "Michael MIC failure wireless event: "
1216 "keyix=%u src_addr=" MACSTR, mic->iev_keyix,
1217 MAC2STR(mic->iev_src));
1219 os_memset(&event, 0, sizeof(event));
1220 event.michael_mic_failure.unicast =
1221 !IEEE80211_IS_MULTICAST(mic->iev_dst);
1222 wpa_supplicant_event(ctx, EVENT_MICHAEL_MIC_FAILURE,
1228 ifm = (struct if_msghdr *) rtm;
1229 if (ifm->ifm_index != drv->ifindex)
1231 if ((rtm->rtm_flags & RTF_UP) == 0) {
1232 strlcpy(event.interface_status.ifname, drv->ifname,
1233 sizeof(event.interface_status.ifname));
1234 event.interface_status.ievent = EVENT_INTERFACE_REMOVED;
1235 wpa_printf(MSG_DEBUG, "RTM_IFINFO: Interface '%s' DOWN",
1236 event.interface_status.ifname);
1237 wpa_supplicant_event(ctx, EVENT_INTERFACE_STATUS, &event);
1244 wpa_driver_bsd_add_scan_entry(struct wpa_scan_results *res,
1245 struct ieee80211req_scan_result *sr)
1247 struct wpa_scan_res *result, **tmp;
1251 extra_len = 2 + sr->isr_ssid_len;
1252 extra_len += 2 + sr->isr_nrates;
1253 extra_len += 3; /* ERP IE */
1254 extra_len += sr->isr_ie_len;
1256 result = os_zalloc(sizeof(*result) + extra_len);
1259 os_memcpy(result->bssid, sr->isr_bssid, ETH_ALEN);
1260 result->freq = sr->isr_freq;
1261 result->beacon_int = sr->isr_intval;
1262 result->caps = sr->isr_capinfo;
1263 result->qual = sr->isr_rssi;
1264 result->noise = sr->isr_noise;
1266 pos = (u8 *)(result + 1);
1268 *pos++ = WLAN_EID_SSID;
1269 *pos++ = sr->isr_ssid_len;
1270 os_memcpy(pos, sr + 1, sr->isr_ssid_len);
1271 pos += sr->isr_ssid_len;
1274 * Deal all rates as supported rate.
1275 * Because net80211 doesn't report extended supported rate or not.
1277 *pos++ = WLAN_EID_SUPP_RATES;
1278 *pos++ = sr->isr_nrates;
1279 os_memcpy(pos, sr->isr_rates, sr->isr_nrates);
1280 pos += sr->isr_nrates;
1282 *pos++ = WLAN_EID_ERP_INFO;
1284 *pos++ = sr->isr_erp;
1286 os_memcpy(pos, (u8 *)(sr + 1) + sr->isr_ssid_len, sr->isr_ie_len);
1287 pos += sr->isr_ie_len;
1289 result->ie_len = pos - (u8 *)(result + 1);
1291 tmp = os_realloc(res->res,
1292 (res->num + 1) * sizeof(struct wpa_scan_res *));
1297 tmp[res->num++] = result;
1301 struct wpa_scan_results *
1302 wpa_driver_bsd_get_scan_results2(void *priv)
1304 struct ieee80211req_scan_result *sr;
1305 struct wpa_scan_results *res;
1307 uint8_t buf[24*1024], *pos;
1309 len = get80211var(priv, IEEE80211_IOC_SCAN_RESULTS, buf, 24*1024);
1313 res = os_zalloc(sizeof(*res));
1319 while (rest >= sizeof(struct ieee80211req_scan_result)) {
1320 sr = (struct ieee80211req_scan_result *)pos;
1321 wpa_driver_bsd_add_scan_entry(res, sr);
1323 rest -= sr->isr_len;
1326 wpa_printf(MSG_DEBUG, "Received %d bytes of scan results (%lu BSSes)",
1327 len, (unsigned long)res->num);
1332 static int wpa_driver_bsd_capa(struct bsd_driver_data *drv)
1334 /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */
1335 drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
1336 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
1337 WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
1338 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
1339 drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 |
1340 WPA_DRIVER_CAPA_ENC_WEP104 |
1341 WPA_DRIVER_CAPA_ENC_TKIP |
1342 WPA_DRIVER_CAPA_ENC_CCMP;
1343 drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
1344 WPA_DRIVER_AUTH_SHARED |
1345 WPA_DRIVER_AUTH_LEAP;
1346 #ifdef IEEE80211_IOC_SCAN_MAX_SSID
1347 drv->capa.max_scan_ssids = IEEE80211_IOC_SCAN_MAX_SSID;
1348 #endif /* IEEE80211_IOC_SCAN_MAX_SSID */
1349 drv->capa.flags |= WPA_DRIVER_FLAGS_AP;
1355 wpa_driver_bsd_init(void *ctx, const char *ifname)
1357 #define GETPARAM(drv, param, v) \
1358 (((v) = get80211param(drv, param)) != -1)
1359 struct bsd_driver_data *drv;
1361 drv = os_zalloc(sizeof(*drv));
1365 * NB: We require the interface name be mappable to an index.
1366 * This implies we do not support having wpa_supplicant
1367 * wait for an interface to appear. This seems ok; that
1368 * doesn't belong here; it's really the job of devd.
1370 drv->ifindex = if_nametoindex(ifname);
1371 if (drv->ifindex == 0) {
1372 wpa_printf(MSG_DEBUG, "%s: interface %s does not exist",
1376 drv->sock = socket(PF_INET, SOCK_DGRAM, 0);
1379 drv->route = socket(PF_ROUTE, SOCK_RAW, 0);
1382 eloop_register_read_sock(drv->route,
1383 wpa_driver_bsd_event_receive, ctx, drv);
1386 os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
1388 /* Down interface during setup. */
1389 if (bsd_ctrl_iface(drv, 0) < 0)
1392 if (!GETPARAM(drv, IEEE80211_IOC_ROAMING, drv->prev_roaming)) {
1393 wpa_printf(MSG_DEBUG, "%s: failed to get roaming state: %s",
1394 __func__, strerror(errno));
1397 if (!GETPARAM(drv, IEEE80211_IOC_PRIVACY, drv->prev_privacy)) {
1398 wpa_printf(MSG_DEBUG, "%s: failed to get privacy state: %s",
1399 __func__, strerror(errno));
1402 if (!GETPARAM(drv, IEEE80211_IOC_WPA, drv->prev_wpa)) {
1403 wpa_printf(MSG_DEBUG, "%s: failed to get wpa state: %s",
1404 __func__, strerror(errno));
1408 if (wpa_driver_bsd_capa(drv))
1421 wpa_driver_bsd_deinit(void *priv)
1423 struct bsd_driver_data *drv = priv;
1425 wpa_driver_bsd_set_wpa(drv, 0);
1426 eloop_unregister_read_sock(drv->route);
1428 /* NB: mark interface down */
1429 bsd_ctrl_iface(drv, 0);
1431 wpa_driver_bsd_set_wpa_internal(drv, drv->prev_wpa, drv->prev_privacy);
1432 if (set80211param(drv, IEEE80211_IOC_ROAMING, drv->prev_roaming) < 0)
1433 wpa_printf(MSG_DEBUG, "%s: failed to restore roaming state",
1436 if (drv->sock_xmit != NULL)
1437 l2_packet_deinit(drv->sock_xmit);
1438 (void) close(drv->route); /* ioctl socket */
1439 (void) close(drv->sock); /* event socket */
1444 wpa_driver_bsd_get_capa(void *priv, struct wpa_driver_capa *capa)
1446 struct bsd_driver_data *drv = priv;
1448 os_memcpy(capa, &drv->capa, sizeof(*capa));
1451 #endif /* HOSTAPD */
1454 const struct wpa_driver_ops wpa_driver_bsd_ops = {
1456 .desc = "BSD 802.11 support",
1458 .hapd_init = bsd_init,
1459 .hapd_deinit = bsd_deinit,
1460 .set_privacy = bsd_set_privacy,
1461 .get_seqnum = bsd_get_seqnum,
1463 .read_sta_data = bsd_read_sta_driver_data,
1464 .sta_disassoc = bsd_sta_disassoc,
1465 .sta_deauth = bsd_sta_deauth,
1466 .set_freq = hostapd_bsd_set_freq,
1468 .init = wpa_driver_bsd_init,
1469 .deinit = wpa_driver_bsd_deinit,
1470 .get_bssid = wpa_driver_bsd_get_bssid,
1471 .get_ssid = wpa_driver_bsd_get_ssid,
1472 .set_countermeasures = wpa_driver_bsd_set_countermeasures,
1473 .scan2 = wpa_driver_bsd_scan,
1474 .get_scan_results2 = wpa_driver_bsd_get_scan_results2,
1475 .deauthenticate = wpa_driver_bsd_deauthenticate,
1476 .disassociate = wpa_driver_bsd_disassociate,
1477 .associate = wpa_driver_bsd_associate,
1478 .get_capa = wpa_driver_bsd_get_capa,
1479 #endif /* HOSTAPD */
1480 .set_key = bsd_set_key,
1481 .set_ieee8021x = bsd_set_ieee8021x,
1482 .hapd_set_ssid = bsd_set_ssid,
1483 .hapd_get_ssid = bsd_get_ssid,
1484 .hapd_send_eapol = bsd_send_eapol,
1485 .sta_set_flags = bsd_set_sta_authorized,
1486 .set_generic_elem = bsd_set_opt_ie,