2 * hostapd / Driver interaction with Atheros driver
3 * Copyright (c) 2004, Sam Leffler <sam@errno.com>
4 * Copyright (c) 2004, Video54 Technologies
5 * Copyright (c) 2005-2007, Jouni Malinen <j@w1.fi>
6 * Copyright (c) 2009, Atheros Communications
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
12 * Alternatively, this software may be distributed under the terms of BSD
15 * See README and COPYING for more details.
20 #include <sys/ioctl.h>
24 #ifdef WORDS_BIGENDIAN
25 #define _BYTE_ORDER _BIG_ENDIAN
27 #define _BYTE_ORDER _LITTLE_ENDIAN
29 #endif /* _BYTE_ORDER */
31 #include <net80211/ieee80211.h>
32 #include <net80211/_ieee80211.h>
33 #include <net80211/ieee80211_crypto.h>
36 * Note, the ATH_WPS_IE setting must match with the driver build.. If the
37 * driver does not include this, the IEEE80211_IOCTL_GETWPAIE ioctl will fail.
40 #include <net80211/ieee80211_ioctl.h>
43 #ifdef IEEE80211_IOCTL_FILTERFRAME
44 #include <netpacket/packet.h>
46 #ifndef ETH_P_80211_RAW
47 #define ETH_P_80211_RAW 0x0019
49 #endif /* IEEE80211_IOCTL_FILTERFRAME */
50 #endif /* CONFIG_WPS */
53 * Avoid conflicts with hostapd definitions by undefining couple of defines
54 * from madwifi header files.
59 #include "wireless_copy.h"
61 #include "../hostapd/hostapd.h"
62 #include "../hostapd/config.h"
63 #include "../hostapd/sta_flags.h"
66 #include "priv_netlink.h"
67 #include "l2_packet/l2_packet.h"
69 #include "../hostapd/wps_hostapd.h"
70 #include "ieee802_11_defs.h"
73 struct madwifi_driver_data {
74 struct hostapd_data *hapd; /* back pointer */
76 char iface[IFNAMSIZ + 1];
78 struct l2_packet_data *sock_xmit; /* raw packet xmit socket */
79 struct l2_packet_data *sock_recv; /* raw packet recv socket */
80 int ioctl_sock; /* socket for ioctl() use */
81 int wext_sock; /* socket for wireless events */
83 u8 acct_mac[ETH_ALEN];
84 struct hostap_sta_driver_data acct_data;
86 struct l2_packet_data *sock_raw; /* raw 802.11 management frames */
89 static int madwifi_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
93 set80211priv(struct madwifi_driver_data *drv, int op, void *data, int len)
96 int do_inline = len < IFNAMSIZ;
98 /* Certain ioctls must use the non-inlined method */
99 if (op == IEEE80211_IOCTL_SET_APPIEBUF ||
100 op == IEEE80211_IOCTL_FILTERFRAME)
103 memset(&iwr, 0, sizeof(iwr));
104 os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
107 * Argument data fits inline; put it there.
109 memcpy(iwr.u.name, data, len);
112 * Argument data too big for inline transfer; setup a
113 * parameter block instead; the kernel will transfer
114 * the data for the driver.
116 iwr.u.data.pointer = data;
117 iwr.u.data.length = len;
120 if (ioctl(drv->ioctl_sock, op, &iwr) < 0) {
121 int first = IEEE80211_IOCTL_SETPARAM;
122 static const char *opnames[] = {
123 "ioctl[IEEE80211_IOCTL_SETPARAM]",
124 "ioctl[IEEE80211_IOCTL_GETPARAM]",
125 "ioctl[IEEE80211_IOCTL_SETKEY]",
126 "ioctl[IEEE80211_IOCTL_SETWMMPARAMS]",
127 "ioctl[IEEE80211_IOCTL_DELKEY]",
128 "ioctl[IEEE80211_IOCTL_GETWMMPARAMS]",
129 "ioctl[IEEE80211_IOCTL_SETMLME]",
130 "ioctl[IEEE80211_IOCTL_GETCHANINFO]",
131 "ioctl[IEEE80211_IOCTL_SETOPTIE]",
132 "ioctl[IEEE80211_IOCTL_GETOPTIE]",
133 "ioctl[IEEE80211_IOCTL_ADDMAC]",
134 "ioctl[IEEE80211_IOCTL_DELMAC]",
135 "ioctl[IEEE80211_IOCTL_GETCHANLIST]",
136 "ioctl[IEEE80211_IOCTL_SETCHANLIST]",
137 "ioctl[IEEE80211_IOCTL_KICKMAC]",
138 "ioctl[IEEE80211_IOCTL_CHANSWITCH]",
139 "ioctl[IEEE80211_IOCTL_GETMODE]",
140 "ioctl[IEEE80211_IOCTL_SETMODE]",
141 "ioctl[IEEE80211_IOCTL_GET_APPIEBUF]",
142 "ioctl[IEEE80211_IOCTL_SET_APPIEBUF]",
144 "ioctl[IEEE80211_IOCTL_FILTERFRAME]",
146 int idx = op - first;
148 idx < (int) (sizeof(opnames) / sizeof(opnames[0])) &&
150 perror(opnames[idx]);
152 perror("ioctl[unknown???]");
153 wpa_printf(MSG_DEBUG, "Failed ioctl: 0x%x", op);
161 set80211param(struct madwifi_driver_data *drv, int op, int arg)
165 memset(&iwr, 0, sizeof(iwr));
166 os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
168 memcpy(iwr.u.name+sizeof(__u32), &arg, sizeof(arg));
170 if (ioctl(drv->ioctl_sock, IEEE80211_IOCTL_SETPARAM, &iwr) < 0) {
171 perror("ioctl[IEEE80211_IOCTL_SETPARAM]");
172 wpa_printf(MSG_DEBUG, "%s: Failed to set parameter (op %d "
173 "arg %d)", __func__, op, arg);
179 #ifndef CONFIG_NO_STDOUT_DEBUG
181 ether_sprintf(const u8 *addr)
183 static char buf[sizeof(MACSTR)];
186 snprintf(buf, sizeof(buf), MACSTR, MAC2STR(addr));
188 snprintf(buf, sizeof(buf), MACSTR, 0,0,0,0,0,0);
191 #endif /* CONFIG_NO_STDOUT_DEBUG */
194 * Configure WPA parameters.
197 madwifi_configure_wpa(struct madwifi_driver_data *drv)
199 struct hostapd_data *hapd = drv->hapd;
200 struct hostapd_bss_config *conf = hapd->conf;
203 switch (conf->wpa_group) {
204 case WPA_CIPHER_CCMP:
205 v = IEEE80211_CIPHER_AES_CCM;
207 case WPA_CIPHER_TKIP:
208 v = IEEE80211_CIPHER_TKIP;
210 case WPA_CIPHER_WEP104:
211 v = IEEE80211_CIPHER_WEP;
213 case WPA_CIPHER_WEP40:
214 v = IEEE80211_CIPHER_WEP;
216 case WPA_CIPHER_NONE:
217 v = IEEE80211_CIPHER_NONE;
220 wpa_printf(MSG_ERROR, "Unknown group key cipher %u",
224 wpa_printf(MSG_DEBUG, "%s: group key cipher=%d", __func__, v);
225 if (set80211param(drv, IEEE80211_PARAM_MCASTCIPHER, v)) {
226 printf("Unable to set group key cipher to %u\n", v);
229 if (v == IEEE80211_CIPHER_WEP) {
230 /* key length is done only for specific ciphers */
231 v = (conf->wpa_group == WPA_CIPHER_WEP104 ? 13 : 5);
232 if (set80211param(drv, IEEE80211_PARAM_MCASTKEYLEN, v)) {
233 printf("Unable to set group key length to %u\n", v);
239 if (conf->wpa_pairwise & WPA_CIPHER_CCMP)
240 v |= 1<<IEEE80211_CIPHER_AES_CCM;
241 if (conf->wpa_pairwise & WPA_CIPHER_TKIP)
242 v |= 1<<IEEE80211_CIPHER_TKIP;
243 if (conf->wpa_pairwise & WPA_CIPHER_NONE)
244 v |= 1<<IEEE80211_CIPHER_NONE;
245 wpa_printf(MSG_DEBUG, "%s: pairwise key ciphers=0x%x", __func__, v);
246 if (set80211param(drv, IEEE80211_PARAM_UCASTCIPHERS, v)) {
247 printf("Unable to set pairwise key ciphers to 0x%x\n", v);
251 wpa_printf(MSG_DEBUG, "%s: key management algorithms=0x%x",
252 __func__, conf->wpa_key_mgmt);
253 if (set80211param(drv, IEEE80211_PARAM_KEYMGTALGS, conf->wpa_key_mgmt)) {
254 printf("Unable to set key management algorithms to 0x%x\n",
260 if (conf->rsn_preauth)
262 wpa_printf(MSG_DEBUG, "%s: rsn capabilities=0x%x",
263 __func__, conf->rsn_preauth);
264 if (set80211param(drv, IEEE80211_PARAM_RSNCAPS, v)) {
265 printf("Unable to set RSN capabilities to 0x%x\n", v);
269 wpa_printf(MSG_DEBUG, "%s: enable WPA=0x%x", __func__, conf->wpa);
270 if (set80211param(drv, IEEE80211_PARAM_WPA, conf->wpa)) {
271 printf("Unable to set WPA to %u\n", conf->wpa);
279 madwifi_set_iface_flags(void *priv, int dev_up)
281 struct madwifi_driver_data *drv = priv;
284 wpa_printf(MSG_DEBUG, "%s: dev_up=%d", __func__, dev_up);
286 if (drv->ioctl_sock < 0)
289 memset(&ifr, 0, sizeof(ifr));
290 os_strlcpy(ifr.ifr_name, drv->iface, IFNAMSIZ);
292 if (ioctl(drv->ioctl_sock, SIOCGIFFLAGS, &ifr) != 0) {
293 perror("ioctl[SIOCGIFFLAGS]");
298 ifr.ifr_flags |= IFF_UP;
300 ifr.ifr_flags &= ~IFF_UP;
302 if (ioctl(drv->ioctl_sock, SIOCSIFFLAGS, &ifr) != 0) {
303 perror("ioctl[SIOCSIFFLAGS]");
308 memset(&ifr, 0, sizeof(ifr));
309 os_strlcpy(ifr.ifr_name, drv->iface, IFNAMSIZ);
310 ifr.ifr_mtu = HOSTAPD_MTU;
311 if (ioctl(drv->ioctl_sock, SIOCSIFMTU, &ifr) != 0) {
312 perror("ioctl[SIOCSIFMTU]");
313 printf("Setting MTU failed - trying to survive with "
322 madwifi_set_ieee8021x(const char *ifname, void *priv, int enabled)
324 struct madwifi_driver_data *drv = priv;
325 struct hostapd_data *hapd = drv->hapd;
326 struct hostapd_bss_config *conf = hapd->conf;
328 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
331 /* XXX restore state */
332 return set80211param(priv, IEEE80211_PARAM_AUTHMODE,
333 IEEE80211_AUTH_AUTO);
335 if (!conf->wpa && !conf->ieee802_1x) {
336 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_DRIVER,
337 HOSTAPD_LEVEL_WARNING, "No 802.1X or WPA enabled!");
340 if (conf->wpa && madwifi_configure_wpa(drv) != 0) {
341 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_DRIVER,
342 HOSTAPD_LEVEL_WARNING, "Error configuring WPA state!");
345 if (set80211param(priv, IEEE80211_PARAM_AUTHMODE,
346 (conf->wpa ? IEEE80211_AUTH_WPA : IEEE80211_AUTH_8021X))) {
347 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_DRIVER,
348 HOSTAPD_LEVEL_WARNING, "Error enabling WPA/802.1X!");
356 madwifi_set_privacy(const char *ifname, void *priv, int enabled)
358 struct madwifi_driver_data *drv = priv;
360 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
362 return set80211param(drv, IEEE80211_PARAM_PRIVACY, enabled);
366 madwifi_set_sta_authorized(void *priv, const u8 *addr, int authorized)
368 struct madwifi_driver_data *drv = priv;
369 struct ieee80211req_mlme mlme;
372 wpa_printf(MSG_DEBUG, "%s: addr=%s authorized=%d",
373 __func__, ether_sprintf(addr), authorized);
376 mlme.im_op = IEEE80211_MLME_AUTHORIZE;
378 mlme.im_op = IEEE80211_MLME_UNAUTHORIZE;
380 memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
381 ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
383 wpa_printf(MSG_DEBUG, "%s: Failed to %sauthorize STA " MACSTR,
384 __func__, authorized ? "" : "un", MAC2STR(addr));
391 madwifi_sta_set_flags(void *priv, const u8 *addr, int total_flags,
392 int flags_or, int flags_and)
394 /* For now, only support setting Authorized flag */
395 if (flags_or & WLAN_STA_AUTHORIZED)
396 return madwifi_set_sta_authorized(priv, addr, 1);
397 if (!(flags_and & WLAN_STA_AUTHORIZED))
398 return madwifi_set_sta_authorized(priv, addr, 0);
403 madwifi_del_key(void *priv, const u8 *addr, int key_idx)
405 struct madwifi_driver_data *drv = priv;
406 struct ieee80211req_del_key wk;
409 wpa_printf(MSG_DEBUG, "%s: addr=%s key_idx=%d",
410 __func__, ether_sprintf(addr), key_idx);
412 memset(&wk, 0, sizeof(wk));
414 memcpy(wk.idk_macaddr, addr, IEEE80211_ADDR_LEN);
415 wk.idk_keyix = (u8) IEEE80211_KEYIX_NONE;
417 wk.idk_keyix = key_idx;
420 ret = set80211priv(drv, IEEE80211_IOCTL_DELKEY, &wk, sizeof(wk));
422 wpa_printf(MSG_DEBUG, "%s: Failed to delete key (addr %s"
423 " key_idx %d)", __func__, ether_sprintf(addr),
431 madwifi_set_key(const char *ifname, void *priv, wpa_alg alg, const u8 *addr,
432 int key_idx, int set_tx, const u8 *seq, size_t seq_len,
433 const u8 *key, size_t key_len)
435 struct madwifi_driver_data *drv = priv;
436 struct ieee80211req_key wk;
440 if (alg == WPA_ALG_NONE)
441 return madwifi_del_key(drv, addr, key_idx);
443 wpa_printf(MSG_DEBUG, "%s: alg=%d addr=%s key_idx=%d",
444 __func__, alg, ether_sprintf(addr), key_idx);
448 cipher = IEEE80211_CIPHER_WEP;
451 cipher = IEEE80211_CIPHER_TKIP;
454 cipher = IEEE80211_CIPHER_AES_CCM;
457 printf("%s: unknown/unsupported algorithm %d\n",
462 if (key_len > sizeof(wk.ik_keydata)) {
463 printf("%s: key length %lu too big\n", __func__,
464 (unsigned long) key_len);
468 memset(&wk, 0, sizeof(wk));
470 wk.ik_flags = IEEE80211_KEY_RECV | IEEE80211_KEY_XMIT;
472 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
473 wk.ik_keyix = key_idx;
474 wk.ik_flags |= IEEE80211_KEY_DEFAULT;
476 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
477 wk.ik_keyix = IEEE80211_KEYIX_NONE;
479 wk.ik_keylen = key_len;
480 memcpy(wk.ik_keydata, key, key_len);
482 ret = set80211priv(drv, IEEE80211_IOCTL_SETKEY, &wk, sizeof(wk));
484 wpa_printf(MSG_DEBUG, "%s: Failed to set key (addr %s"
485 " key_idx %d alg %d key_len %lu set_tx %d)",
486 __func__, ether_sprintf(wk.ik_macaddr), key_idx,
487 alg, (unsigned long) key_len, set_tx);
495 madwifi_get_seqnum(const char *ifname, void *priv, const u8 *addr, int idx,
498 struct madwifi_driver_data *drv = priv;
499 struct ieee80211req_key wk;
501 wpa_printf(MSG_DEBUG, "%s: addr=%s idx=%d",
502 __func__, ether_sprintf(addr), idx);
504 memset(&wk, 0, sizeof(wk));
506 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
508 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
511 if (set80211priv(drv, IEEE80211_IOCTL_GETKEY, &wk, sizeof(wk))) {
512 wpa_printf(MSG_DEBUG, "%s: Failed to get encryption data "
513 "(addr " MACSTR " key_idx %d)",
514 __func__, MAC2STR(wk.ik_macaddr), idx);
518 #ifdef WORDS_BIGENDIAN
521 * wk.ik_keytsc is in host byte order (big endian), need to
522 * swap it to match with the byte order used in WPA.
525 u8 tmp[WPA_KEY_RSC_LEN];
526 memcpy(tmp, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
527 for (i = 0; i < WPA_KEY_RSC_LEN; i++) {
528 seq[i] = tmp[WPA_KEY_RSC_LEN - i - 1];
531 #else /* WORDS_BIGENDIAN */
532 memcpy(seq, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
533 #endif /* WORDS_BIGENDIAN */
539 madwifi_flush(void *priv)
541 u8 allsta[IEEE80211_ADDR_LEN];
542 memset(allsta, 0xff, IEEE80211_ADDR_LEN);
543 return madwifi_sta_deauth(priv, NULL, allsta,
544 IEEE80211_REASON_AUTH_LEAVE);
549 madwifi_read_sta_driver_data(void *priv, struct hostap_sta_driver_data *data,
552 struct madwifi_driver_data *drv = priv;
553 struct ieee80211req_sta_stats stats;
555 memset(data, 0, sizeof(*data));
558 * Fetch statistics for station from the system.
560 memset(&stats, 0, sizeof(stats));
561 memcpy(stats.is_u.macaddr, addr, IEEE80211_ADDR_LEN);
562 if (set80211priv(drv, IEEE80211_IOCTL_STA_STATS,
563 &stats, sizeof(stats))) {
564 wpa_printf(MSG_DEBUG, "%s: Failed to fetch STA stats (addr "
565 MACSTR ")", __func__, MAC2STR(addr));
566 if (memcmp(addr, drv->acct_mac, ETH_ALEN) == 0) {
567 memcpy(data, &drv->acct_data, sizeof(*data));
571 printf("Failed to get station stats information element.\n");
575 data->rx_packets = stats.is_stats.ns_rx_data;
576 data->rx_bytes = stats.is_stats.ns_rx_bytes;
577 data->tx_packets = stats.is_stats.ns_tx_data;
578 data->tx_bytes = stats.is_stats.ns_tx_bytes;
584 madwifi_sta_clear_stats(void *priv, const u8 *addr)
586 struct madwifi_driver_data *drv = priv;
587 struct ieee80211req_mlme mlme;
590 wpa_printf(MSG_DEBUG, "%s: addr=%s", __func__, ether_sprintf(addr));
592 mlme.im_op = IEEE80211_MLME_CLEAR_STATS;
593 memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
594 ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme,
597 wpa_printf(MSG_DEBUG, "%s: Failed to clear STA stats (addr "
598 MACSTR ")", __func__, MAC2STR(addr));
606 madwifi_set_opt_ie(const char *ifname, void *priv, const u8 *ie, size_t ie_len)
609 * Do nothing; we setup parameters at startup that define the
610 * contents of the beacon information element.
616 madwifi_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
619 struct madwifi_driver_data *drv = priv;
620 struct ieee80211req_mlme mlme;
623 wpa_printf(MSG_DEBUG, "%s: addr=%s reason_code=%d",
624 __func__, ether_sprintf(addr), reason_code);
626 mlme.im_op = IEEE80211_MLME_DEAUTH;
627 mlme.im_reason = reason_code;
628 memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
629 ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
631 wpa_printf(MSG_DEBUG, "%s: Failed to deauth STA (addr " MACSTR
633 __func__, MAC2STR(addr), reason_code);
640 madwifi_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
643 struct madwifi_driver_data *drv = priv;
644 struct ieee80211req_mlme mlme;
647 wpa_printf(MSG_DEBUG, "%s: addr=%s reason_code=%d",
648 __func__, ether_sprintf(addr), reason_code);
650 mlme.im_op = IEEE80211_MLME_DISASSOC;
651 mlme.im_reason = reason_code;
652 memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
653 ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
655 wpa_printf(MSG_DEBUG, "%s: Failed to disassoc STA (addr "
656 MACSTR " reason %d)",
657 __func__, MAC2STR(addr), reason_code);
664 static void madwifi_raw_receive(void *ctx, const u8 *src_addr, const u8 *buf,
667 struct madwifi_driver_data *drv = ctx;
668 const struct ieee80211_mgmt *mgmt;
673 /* Send Probe Request information to WPS processing */
675 if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req))
677 mgmt = (const struct ieee80211_mgmt *) buf;
679 fc = le_to_host16(mgmt->frame_control);
680 if (WLAN_FC_GET_TYPE(fc) != WLAN_FC_TYPE_MGMT ||
681 WLAN_FC_GET_STYPE(fc) != WLAN_FC_STYPE_PROBE_REQ)
685 ie = mgmt->u.probe_req.variable;
686 ie_len = len - (IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req));
688 hostapd_probe_req_rx(drv->hapd, mgmt->sa, ie, ie_len);
690 #endif /* CONFIG_WPS */
692 static int madwifi_receive_probe_req(struct madwifi_driver_data *drv)
696 struct ieee80211req_set_filter filt;
698 wpa_printf(MSG_DEBUG, "%s Enter", __func__);
699 filt.app_filterype = IEEE80211_FILTER_TYPE_PROBE_REQ;
701 ret = set80211priv(drv, IEEE80211_IOCTL_FILTERFRAME, &filt,
702 sizeof(struct ieee80211req_set_filter));
706 drv->sock_raw = l2_packet_init(drv->iface, NULL, ETH_P_80211_RAW,
707 madwifi_raw_receive, drv, 1);
708 if (drv->sock_raw == NULL)
710 #endif /* CONFIG_WPS */
716 madwifi_set_wps_ie(void *priv, const u8 *ie, size_t len, u32 frametype)
718 struct madwifi_driver_data *drv = priv;
720 struct ieee80211req_getset_appiebuf *beac_ie;
722 wpa_printf(MSG_DEBUG, "%s buflen = %lu", __func__,
723 (unsigned long) len);
725 beac_ie = (struct ieee80211req_getset_appiebuf *) buf;
726 beac_ie->app_frmtype = frametype;
727 beac_ie->app_buflen = len;
728 memcpy(&(beac_ie->app_buf[0]), ie, len);
730 return set80211priv(drv, IEEE80211_IOCTL_SET_APPIEBUF, beac_ie,
731 sizeof(struct ieee80211req_getset_appiebuf) + len);
735 madwifi_set_wps_beacon_ie(const char *ifname, void *priv, const u8 *ie,
738 return madwifi_set_wps_ie(priv, ie, len, IEEE80211_APPIE_FRAME_BEACON);
742 madwifi_set_wps_probe_resp_ie(const char *ifname, void *priv, const u8 *ie,
745 return madwifi_set_wps_ie(priv, ie, len,
746 IEEE80211_APPIE_FRAME_PROBE_RESP);
748 #else /* CONFIG_WPS */
749 #define madwifi_set_wps_beacon_ie NULL
750 #define madwifi_set_wps_probe_resp_ie NULL
751 #endif /* CONFIG_WPS */
754 madwifi_new_sta(struct madwifi_driver_data *drv, u8 addr[IEEE80211_ADDR_LEN])
756 struct hostapd_data *hapd = drv->hapd;
757 struct ieee80211req_wpaie ie;
762 * Fetch negotiated WPA/RSN parameters from the system.
764 memset(&ie, 0, sizeof(ie));
765 memcpy(ie.wpa_macaddr, addr, IEEE80211_ADDR_LEN);
766 if (set80211priv(drv, IEEE80211_IOCTL_GETWPAIE, &ie, sizeof(ie))) {
768 * See ATH_WPS_IE comment in the beginning of the file for a
769 * possible cause for the failure..
771 wpa_printf(MSG_DEBUG, "%s: Failed to get WPA/RSN IE: %s",
772 __func__, strerror(errno));
775 wpa_hexdump(MSG_MSGDUMP, "madwifi req WPA IE",
776 ie.wpa_ie, IEEE80211_MAX_OPT_IE);
777 wpa_hexdump(MSG_MSGDUMP, "madwifi req RSN IE",
778 ie.rsn_ie, IEEE80211_MAX_OPT_IE);
780 /* madwifi seems to return some random data if WPA/RSN IE is not set.
781 * Assume the IE was not included if the IE type is unknown. */
782 if (iebuf[0] != WLAN_EID_VENDOR_SPECIFIC)
784 if (iebuf[1] == 0 && ie.rsn_ie[1] > 0) {
785 /* madwifi-ng svn #1453 added rsn_ie. Use it, if wpa_ie was not
786 * set. This is needed for WPA2. */
788 if (iebuf[0] != WLAN_EID_RSN)
799 res = hostapd_notif_assoc(hapd, addr, iebuf, ielen);
801 if (memcmp(addr, drv->acct_mac, ETH_ALEN) == 0) {
802 /* Cached accounting data is not valid anymore. */
803 memset(drv->acct_mac, 0, ETH_ALEN);
804 memset(&drv->acct_data, 0, sizeof(drv->acct_data));
811 madwifi_wireless_event_wireless_custom(struct madwifi_driver_data *drv,
812 char *custom, char *end)
814 wpa_printf(MSG_DEBUG, "Custom wireless event: '%s'", custom);
816 if (strncmp(custom, "MLME-MICHAELMICFAILURE.indication", 33) == 0) {
819 pos = strstr(custom, "addr=");
821 wpa_printf(MSG_DEBUG,
822 "MLME-MICHAELMICFAILURE.indication "
823 "without sender address ignored");
827 if (hwaddr_aton(pos, addr) == 0) {
828 hostapd_michael_mic_failure(drv->hapd, addr);
830 wpa_printf(MSG_DEBUG,
831 "MLME-MICHAELMICFAILURE.indication "
832 "with invalid MAC address");
834 } else if (strncmp(custom, "STA-TRAFFIC-STAT", 16) == 0) {
838 while ((key = strchr(key, '\n')) != NULL) {
840 value = strchr(key, '=');
844 val = strtoul(value, NULL, 10);
845 if (strcmp(key, "mac") == 0)
846 hwaddr_aton(value, drv->acct_mac);
847 else if (strcmp(key, "rx_packets") == 0)
848 drv->acct_data.rx_packets = val;
849 else if (strcmp(key, "tx_packets") == 0)
850 drv->acct_data.tx_packets = val;
851 else if (strcmp(key, "rx_bytes") == 0)
852 drv->acct_data.rx_bytes = val;
853 else if (strcmp(key, "tx_bytes") == 0)
854 drv->acct_data.tx_bytes = val;
858 } else if (strncmp(custom, "PUSH-BUTTON.indication", 22) == 0) {
859 /* Some atheros kernels send push button as a wireless event */
860 /* PROBLEM! this event is received for ALL BSSs ...
861 * so all are enabled for WPS... ugh.
863 hostapd_wps_button_pushed(drv->hapd);
864 } else if (strncmp(custom, "Manage.prob_req ", 16) == 0) {
866 * Atheros driver uses a hack to pass Probe Request frames as a
867 * binary data in the custom wireless event. The old way (using
868 * packet sniffing) didn't work when bridging.
869 * Format: "Manage.prob_req <frame len>" | zero padding | frame
871 #define WPS_FRAM_TAG_SIZE 30 /* hardcoded in driver */
872 int len = atoi(custom + 16);
873 if (len < 0 || custom + WPS_FRAM_TAG_SIZE + len > end) {
874 wpa_printf(MSG_DEBUG, "Invalid Manage.prob_req event "
878 madwifi_raw_receive(drv, NULL,
879 (u8 *) custom + WPS_FRAM_TAG_SIZE, len);
880 #endif /* CONFIG_WPS */
885 madwifi_wireless_event_wireless(struct madwifi_driver_data *drv,
888 struct iw_event iwe_buf, *iwe = &iwe_buf;
889 char *pos, *end, *custom, *buf;
894 while (pos + IW_EV_LCP_LEN <= end) {
895 /* Event data may be unaligned, so make a local, aligned copy
896 * before processing. */
897 memcpy(&iwe_buf, pos, IW_EV_LCP_LEN);
898 wpa_printf(MSG_MSGDUMP, "Wireless event: cmd=0x%x len=%d",
900 if (iwe->len <= IW_EV_LCP_LEN)
903 custom = pos + IW_EV_POINT_LEN;
904 if (drv->we_version > 18 &&
905 (iwe->cmd == IWEVMICHAELMICFAILURE ||
906 iwe->cmd == IWEVASSOCREQIE ||
907 iwe->cmd == IWEVCUSTOM)) {
908 /* WE-19 removed the pointer from struct iw_point */
909 char *dpos = (char *) &iwe_buf.u.data.length;
910 int dlen = dpos - (char *) &iwe_buf;
911 memcpy(dpos, pos + IW_EV_LCP_LEN,
912 sizeof(struct iw_event) - dlen);
914 memcpy(&iwe_buf, pos, sizeof(struct iw_event));
915 custom += IW_EV_POINT_OFF;
920 hostapd_notif_disassoc(drv->hapd,
921 (u8 *) iwe->u.addr.sa_data);
924 madwifi_new_sta(drv, (u8 *) iwe->u.addr.sa_data);
927 /* Driver hack.. Use IWEVASSOCREQIE to bypass
928 * IWEVCUSTOM size limitations. Need to handle this
929 * just like IWEVCUSTOM.
932 if (custom + iwe->u.data.length > end)
934 buf = malloc(iwe->u.data.length + 1);
937 memcpy(buf, custom, iwe->u.data.length);
938 buf[iwe->u.data.length] = '\0';
939 madwifi_wireless_event_wireless_custom(
940 drv, buf, buf + iwe->u.data.length);
951 madwifi_wireless_event_rtm_newlink(struct madwifi_driver_data *drv,
952 struct nlmsghdr *h, int len)
954 struct ifinfomsg *ifi;
955 int attrlen, nlmsg_len, rta_len;
956 struct rtattr * attr;
958 if (len < (int) sizeof(*ifi))
963 if (ifi->ifi_index != drv->ifindex)
966 nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
968 attrlen = h->nlmsg_len - nlmsg_len;
972 attr = (struct rtattr *) (((char *) ifi) + nlmsg_len);
974 rta_len = RTA_ALIGN(sizeof(struct rtattr));
975 while (RTA_OK(attr, attrlen)) {
976 if (attr->rta_type == IFLA_WIRELESS) {
977 madwifi_wireless_event_wireless(
978 drv, ((char *) attr) + rta_len,
979 attr->rta_len - rta_len);
981 attr = RTA_NEXT(attr, attrlen);
987 madwifi_wireless_event_receive(int sock, void *eloop_ctx, void *sock_ctx)
991 struct sockaddr_nl from;
994 struct madwifi_driver_data *drv = eloop_ctx;
996 fromlen = sizeof(from);
997 left = recvfrom(sock, buf, sizeof(buf), MSG_DONTWAIT,
998 (struct sockaddr *) &from, &fromlen);
1000 if (errno != EINTR && errno != EAGAIN)
1001 perror("recvfrom(netlink)");
1005 h = (struct nlmsghdr *) buf;
1006 while (left >= (int) sizeof(*h)) {
1010 plen = len - sizeof(*h);
1011 if (len > left || plen < 0) {
1012 printf("Malformed netlink message: "
1013 "len=%d left=%d plen=%d\n",
1018 switch (h->nlmsg_type) {
1020 madwifi_wireless_event_rtm_newlink(drv, h, plen);
1024 len = NLMSG_ALIGN(len);
1026 h = (struct nlmsghdr *) ((char *) h + len);
1030 printf("%d extra bytes in the end of netlink message\n", left);
1036 madwifi_get_we_version(struct madwifi_driver_data *drv)
1038 struct iw_range *range;
1043 drv->we_version = 0;
1046 * Use larger buffer than struct iw_range in order to allow the
1047 * structure to grow in the future.
1049 buflen = sizeof(struct iw_range) + 500;
1050 range = os_zalloc(buflen);
1054 memset(&iwr, 0, sizeof(iwr));
1055 os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1056 iwr.u.data.pointer = (caddr_t) range;
1057 iwr.u.data.length = buflen;
1059 minlen = ((char *) &range->enc_capa) - (char *) range +
1060 sizeof(range->enc_capa);
1062 if (ioctl(drv->ioctl_sock, SIOCGIWRANGE, &iwr) < 0) {
1063 perror("ioctl[SIOCGIWRANGE]");
1066 } else if (iwr.u.data.length >= minlen &&
1067 range->we_version_compiled >= 18) {
1068 wpa_printf(MSG_DEBUG, "SIOCGIWRANGE: WE(compiled)=%d "
1069 "WE(source)=%d enc_capa=0x%x",
1070 range->we_version_compiled,
1071 range->we_version_source,
1073 drv->we_version = range->we_version_compiled;
1082 madwifi_wireless_event_init(struct madwifi_driver_data *drv)
1085 struct sockaddr_nl local;
1087 madwifi_get_we_version(drv);
1089 drv->wext_sock = -1;
1091 s = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
1093 perror("socket(PF_NETLINK,SOCK_RAW,NETLINK_ROUTE)");
1097 memset(&local, 0, sizeof(local));
1098 local.nl_family = AF_NETLINK;
1099 local.nl_groups = RTMGRP_LINK;
1100 if (bind(s, (struct sockaddr *) &local, sizeof(local)) < 0) {
1101 perror("bind(netlink)");
1106 eloop_register_read_sock(s, madwifi_wireless_event_receive, drv, NULL);
1114 madwifi_wireless_event_deinit(struct madwifi_driver_data *drv)
1116 if (drv->wext_sock < 0)
1118 eloop_unregister_read_sock(drv->wext_sock);
1119 close(drv->wext_sock);
1124 madwifi_send_eapol(void *priv, const u8 *addr, const u8 *data, size_t data_len,
1125 int encrypt, const u8 *own_addr)
1127 struct madwifi_driver_data *drv = priv;
1128 unsigned char buf[3000];
1129 unsigned char *bp = buf;
1130 struct l2_ethhdr *eth;
1135 * Prepend the Ethernet header. If the caller left us
1136 * space at the front we could just insert it but since
1137 * we don't know we copy to a local buffer. Given the frequency
1138 * and size of frames this probably doesn't matter.
1140 len = data_len + sizeof(struct l2_ethhdr);
1141 if (len > sizeof(buf)) {
1144 printf("EAPOL frame discarded, cannot malloc temp "
1145 "buffer of size %lu!\n", (unsigned long) len);
1149 eth = (struct l2_ethhdr *) bp;
1150 memcpy(eth->h_dest, addr, ETH_ALEN);
1151 memcpy(eth->h_source, own_addr, ETH_ALEN);
1152 eth->h_proto = host_to_be16(ETH_P_EAPOL);
1153 memcpy(eth+1, data, data_len);
1155 wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", bp, len);
1157 status = l2_packet_send(drv->sock_xmit, addr, ETH_P_EAPOL, bp, len);
1165 handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
1167 struct madwifi_driver_data *drv = ctx;
1168 hostapd_eapol_receive(drv->hapd, src_addr,
1169 buf + sizeof(struct l2_ethhdr),
1170 len - sizeof(struct l2_ethhdr));
1174 madwifi_init(struct hostapd_data *hapd, struct wpa_init_params *params)
1176 struct madwifi_driver_data *drv;
1180 drv = os_zalloc(sizeof(struct madwifi_driver_data));
1182 printf("Could not allocate memory for madwifi driver data\n");
1187 drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
1188 if (drv->ioctl_sock < 0) {
1189 perror("socket[PF_INET,SOCK_DGRAM]");
1192 memcpy(drv->iface, params->ifname, sizeof(drv->iface));
1194 memset(&ifr, 0, sizeof(ifr));
1195 os_strlcpy(ifr.ifr_name, drv->iface, sizeof(ifr.ifr_name));
1196 if (ioctl(drv->ioctl_sock, SIOCGIFINDEX, &ifr) != 0) {
1197 perror("ioctl(SIOCGIFINDEX)");
1200 drv->ifindex = ifr.ifr_ifindex;
1202 drv->sock_xmit = l2_packet_init(drv->iface, NULL, ETH_P_EAPOL,
1203 handle_read, drv, 1);
1204 if (drv->sock_xmit == NULL)
1206 if (l2_packet_get_own_addr(drv->sock_xmit, params->own_addr))
1208 if (params->bridge[0]) {
1209 wpa_printf(MSG_DEBUG, "Configure bridge %s for EAPOL traffic.",
1211 drv->sock_recv = l2_packet_init(params->bridge[0], NULL,
1212 ETH_P_EAPOL, handle_read, drv,
1214 if (drv->sock_recv == NULL)
1217 drv->sock_recv = drv->sock_xmit;
1219 memset(&iwr, 0, sizeof(iwr));
1220 os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1222 iwr.u.mode = IW_MODE_MASTER;
1224 if (ioctl(drv->ioctl_sock, SIOCSIWMODE, &iwr) < 0) {
1225 perror("ioctl[SIOCSIWMODE]");
1226 printf("Could not set interface to master mode!\n");
1230 madwifi_set_iface_flags(drv, 0); /* mark down during setup */
1231 madwifi_set_privacy(drv->iface, drv, 0); /* default to no privacy */
1233 madwifi_receive_probe_req(drv);
1235 if (madwifi_wireless_event_init(drv))
1240 if (drv->sock_xmit != NULL)
1241 l2_packet_deinit(drv->sock_xmit);
1242 if (drv->ioctl_sock >= 0)
1243 close(drv->ioctl_sock);
1251 madwifi_deinit(void *priv)
1253 struct madwifi_driver_data *drv = priv;
1255 madwifi_wireless_event_deinit(drv);
1256 (void) madwifi_set_iface_flags(drv, 0);
1257 if (drv->ioctl_sock >= 0)
1258 close(drv->ioctl_sock);
1259 if (drv->sock_recv != NULL && drv->sock_recv != drv->sock_xmit)
1260 l2_packet_deinit(drv->sock_recv);
1261 if (drv->sock_xmit != NULL)
1262 l2_packet_deinit(drv->sock_xmit);
1264 l2_packet_deinit(drv->sock_raw);
1269 madwifi_set_ssid(const char *ifname, void *priv, const u8 *buf, int len)
1271 struct madwifi_driver_data *drv = priv;
1274 memset(&iwr, 0, sizeof(iwr));
1275 os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1276 iwr.u.essid.flags = 1; /* SSID active */
1277 iwr.u.essid.pointer = (caddr_t) buf;
1278 iwr.u.essid.length = len + 1;
1280 if (ioctl(drv->ioctl_sock, SIOCSIWESSID, &iwr) < 0) {
1281 perror("ioctl[SIOCSIWESSID]");
1282 printf("len=%d\n", len);
1289 madwifi_get_ssid(const char *ifname, void *priv, u8 *buf, int len)
1291 struct madwifi_driver_data *drv = priv;
1295 memset(&iwr, 0, sizeof(iwr));
1296 os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1297 iwr.u.essid.pointer = (caddr_t) buf;
1298 iwr.u.essid.length = len;
1300 if (ioctl(drv->ioctl_sock, SIOCGIWESSID, &iwr) < 0) {
1301 perror("ioctl[SIOCGIWESSID]");
1304 ret = iwr.u.essid.length;
1310 madwifi_set_countermeasures(void *priv, int enabled)
1312 struct madwifi_driver_data *drv = priv;
1313 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
1314 return set80211param(drv, IEEE80211_PARAM_COUNTERMEASURES, enabled);
1318 madwifi_commit(void *priv)
1320 return madwifi_set_iface_flags(priv, 1);
1323 const struct wpa_driver_ops wpa_driver_atheros_ops = {
1325 .hapd_init = madwifi_init,
1326 .deinit = madwifi_deinit,
1327 .set_ieee8021x = madwifi_set_ieee8021x,
1328 .set_privacy = madwifi_set_privacy,
1329 .hapd_set_key = madwifi_set_key,
1330 .get_seqnum = madwifi_get_seqnum,
1331 .flush = madwifi_flush,
1332 .set_generic_elem = madwifi_set_opt_ie,
1333 .sta_set_flags = madwifi_sta_set_flags,
1334 .read_sta_data = madwifi_read_sta_driver_data,
1335 .hapd_send_eapol = madwifi_send_eapol,
1336 .sta_disassoc = madwifi_sta_disassoc,
1337 .sta_deauth = madwifi_sta_deauth,
1338 .hapd_set_ssid = madwifi_set_ssid,
1339 .hapd_get_ssid = madwifi_get_ssid,
1340 .set_countermeasures = madwifi_set_countermeasures,
1341 .sta_clear_stats = madwifi_sta_clear_stats,
1342 .commit = madwifi_commit,
1343 .set_wps_beacon_ie = madwifi_set_wps_beacon_ie,
1344 .set_wps_probe_resp_ie = madwifi_set_wps_probe_resp_ie,