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"
65 #include "priv_netlink.h"
66 #include "l2_packet/l2_packet.h"
68 #include "wps_hostapd.h"
69 #include "ieee802_11_defs.h"
72 struct madwifi_driver_data {
73 struct hostapd_data *hapd; /* back pointer */
75 char iface[IFNAMSIZ + 1];
77 struct l2_packet_data *sock_xmit; /* raw packet xmit socket */
78 struct l2_packet_data *sock_recv; /* raw packet recv socket */
79 int ioctl_sock; /* socket for ioctl() use */
80 int wext_sock; /* socket for wireless events */
82 u8 acct_mac[ETH_ALEN];
83 struct hostap_sta_driver_data acct_data;
85 struct l2_packet_data *sock_raw; /* raw 802.11 management frames */
88 static int madwifi_sta_deauth(void *priv, const u8 *addr, int reason_code);
91 set80211priv(struct madwifi_driver_data *drv, int op, void *data, int len)
94 int do_inline = len < IFNAMSIZ;
96 /* Certain ioctls must use the non-inlined method */
97 if (op == IEEE80211_IOCTL_SET_APPIEBUF ||
98 op == IEEE80211_IOCTL_FILTERFRAME)
101 memset(&iwr, 0, sizeof(iwr));
102 os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
105 * Argument data fits inline; put it there.
107 memcpy(iwr.u.name, data, len);
110 * Argument data too big for inline transfer; setup a
111 * parameter block instead; the kernel will transfer
112 * the data for the driver.
114 iwr.u.data.pointer = data;
115 iwr.u.data.length = len;
118 if (ioctl(drv->ioctl_sock, op, &iwr) < 0) {
119 int first = IEEE80211_IOCTL_SETPARAM;
120 static const char *opnames[] = {
121 "ioctl[IEEE80211_IOCTL_SETPARAM]",
122 "ioctl[IEEE80211_IOCTL_GETPARAM]",
123 "ioctl[IEEE80211_IOCTL_SETKEY]",
124 "ioctl[IEEE80211_IOCTL_SETWMMPARAMS]",
125 "ioctl[IEEE80211_IOCTL_DELKEY]",
126 "ioctl[IEEE80211_IOCTL_GETWMMPARAMS]",
127 "ioctl[IEEE80211_IOCTL_SETMLME]",
128 "ioctl[IEEE80211_IOCTL_GETCHANINFO]",
129 "ioctl[IEEE80211_IOCTL_SETOPTIE]",
130 "ioctl[IEEE80211_IOCTL_GETOPTIE]",
131 "ioctl[IEEE80211_IOCTL_ADDMAC]",
132 "ioctl[IEEE80211_IOCTL_DELMAC]",
133 "ioctl[IEEE80211_IOCTL_GETCHANLIST]",
134 "ioctl[IEEE80211_IOCTL_SETCHANLIST]",
135 "ioctl[IEEE80211_IOCTL_KICKMAC]",
136 "ioctl[IEEE80211_IOCTL_CHANSWITCH]",
137 "ioctl[IEEE80211_IOCTL_GETMODE]",
138 "ioctl[IEEE80211_IOCTL_SETMODE]",
139 "ioctl[IEEE80211_IOCTL_GET_APPIEBUF]",
140 "ioctl[IEEE80211_IOCTL_SET_APPIEBUF]",
142 "ioctl[IEEE80211_IOCTL_FILTERFRAME]",
144 int idx = op - first;
146 idx < (int) (sizeof(opnames) / sizeof(opnames[0])) &&
148 perror(opnames[idx]);
150 perror("ioctl[unknown???]");
151 wpa_printf(MSG_DEBUG, "Failed ioctl: 0x%x", op);
159 set80211param(struct madwifi_driver_data *drv, int op, int arg)
163 memset(&iwr, 0, sizeof(iwr));
164 os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
166 memcpy(iwr.u.name+sizeof(__u32), &arg, sizeof(arg));
168 if (ioctl(drv->ioctl_sock, IEEE80211_IOCTL_SETPARAM, &iwr) < 0) {
169 perror("ioctl[IEEE80211_IOCTL_SETPARAM]");
170 wpa_printf(MSG_DEBUG, "%s: Failed to set parameter (op %d "
171 "arg %d)", __func__, op, arg);
177 #ifndef CONFIG_NO_STDOUT_DEBUG
179 ether_sprintf(const u8 *addr)
181 static char buf[sizeof(MACSTR)];
184 snprintf(buf, sizeof(buf), MACSTR, MAC2STR(addr));
186 snprintf(buf, sizeof(buf), MACSTR, 0,0,0,0,0,0);
189 #endif /* CONFIG_NO_STDOUT_DEBUG */
192 * Configure WPA parameters.
195 madwifi_configure_wpa(struct madwifi_driver_data *drv)
197 struct hostapd_data *hapd = drv->hapd;
198 struct hostapd_bss_config *conf = hapd->conf;
201 switch (conf->wpa_group) {
202 case WPA_CIPHER_CCMP:
203 v = IEEE80211_CIPHER_AES_CCM;
205 case WPA_CIPHER_TKIP:
206 v = IEEE80211_CIPHER_TKIP;
208 case WPA_CIPHER_WEP104:
209 v = IEEE80211_CIPHER_WEP;
211 case WPA_CIPHER_WEP40:
212 v = IEEE80211_CIPHER_WEP;
214 case WPA_CIPHER_NONE:
215 v = IEEE80211_CIPHER_NONE;
218 wpa_printf(MSG_ERROR, "Unknown group key cipher %u",
222 wpa_printf(MSG_DEBUG, "%s: group key cipher=%d", __func__, v);
223 if (set80211param(drv, IEEE80211_PARAM_MCASTCIPHER, v)) {
224 printf("Unable to set group key cipher to %u\n", v);
227 if (v == IEEE80211_CIPHER_WEP) {
228 /* key length is done only for specific ciphers */
229 v = (conf->wpa_group == WPA_CIPHER_WEP104 ? 13 : 5);
230 if (set80211param(drv, IEEE80211_PARAM_MCASTKEYLEN, v)) {
231 printf("Unable to set group key length to %u\n", v);
237 if (conf->wpa_pairwise & WPA_CIPHER_CCMP)
238 v |= 1<<IEEE80211_CIPHER_AES_CCM;
239 if (conf->wpa_pairwise & WPA_CIPHER_TKIP)
240 v |= 1<<IEEE80211_CIPHER_TKIP;
241 if (conf->wpa_pairwise & WPA_CIPHER_NONE)
242 v |= 1<<IEEE80211_CIPHER_NONE;
243 wpa_printf(MSG_DEBUG, "%s: pairwise key ciphers=0x%x", __func__, v);
244 if (set80211param(drv, IEEE80211_PARAM_UCASTCIPHERS, v)) {
245 printf("Unable to set pairwise key ciphers to 0x%x\n", v);
249 wpa_printf(MSG_DEBUG, "%s: key management algorithms=0x%x",
250 __func__, conf->wpa_key_mgmt);
251 if (set80211param(drv, IEEE80211_PARAM_KEYMGTALGS, conf->wpa_key_mgmt)) {
252 printf("Unable to set key management algorithms to 0x%x\n",
258 if (conf->rsn_preauth)
260 wpa_printf(MSG_DEBUG, "%s: rsn capabilities=0x%x",
261 __func__, conf->rsn_preauth);
262 if (set80211param(drv, IEEE80211_PARAM_RSNCAPS, v)) {
263 printf("Unable to set RSN capabilities to 0x%x\n", v);
267 wpa_printf(MSG_DEBUG, "%s: enable WPA=0x%x", __func__, conf->wpa);
268 if (set80211param(drv, IEEE80211_PARAM_WPA, conf->wpa)) {
269 printf("Unable to set WPA to %u\n", conf->wpa);
277 madwifi_set_iface_flags(void *priv, int dev_up)
279 struct madwifi_driver_data *drv = priv;
282 wpa_printf(MSG_DEBUG, "%s: dev_up=%d", __func__, dev_up);
284 if (drv->ioctl_sock < 0)
287 memset(&ifr, 0, sizeof(ifr));
288 os_strlcpy(ifr.ifr_name, drv->iface, IFNAMSIZ);
290 if (ioctl(drv->ioctl_sock, SIOCGIFFLAGS, &ifr) != 0) {
291 perror("ioctl[SIOCGIFFLAGS]");
296 ifr.ifr_flags |= IFF_UP;
298 ifr.ifr_flags &= ~IFF_UP;
300 if (ioctl(drv->ioctl_sock, SIOCSIFFLAGS, &ifr) != 0) {
301 perror("ioctl[SIOCSIFFLAGS]");
306 memset(&ifr, 0, sizeof(ifr));
307 os_strlcpy(ifr.ifr_name, drv->iface, IFNAMSIZ);
308 ifr.ifr_mtu = HOSTAPD_MTU;
309 if (ioctl(drv->ioctl_sock, SIOCSIFMTU, &ifr) != 0) {
310 perror("ioctl[SIOCSIFMTU]");
311 printf("Setting MTU failed - trying to survive with "
320 madwifi_set_ieee8021x(const char *ifname, void *priv, int enabled)
322 struct madwifi_driver_data *drv = priv;
323 struct hostapd_data *hapd = drv->hapd;
324 struct hostapd_bss_config *conf = hapd->conf;
326 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
329 /* XXX restore state */
330 return set80211param(priv, IEEE80211_PARAM_AUTHMODE,
331 IEEE80211_AUTH_AUTO);
333 if (!conf->wpa && !conf->ieee802_1x) {
334 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_DRIVER,
335 HOSTAPD_LEVEL_WARNING, "No 802.1X or WPA enabled!");
338 if (conf->wpa && madwifi_configure_wpa(drv) != 0) {
339 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_DRIVER,
340 HOSTAPD_LEVEL_WARNING, "Error configuring WPA state!");
343 if (set80211param(priv, IEEE80211_PARAM_AUTHMODE,
344 (conf->wpa ? IEEE80211_AUTH_WPA : IEEE80211_AUTH_8021X))) {
345 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_DRIVER,
346 HOSTAPD_LEVEL_WARNING, "Error enabling WPA/802.1X!");
354 madwifi_set_privacy(const char *ifname, void *priv, int enabled)
356 struct madwifi_driver_data *drv = priv;
358 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
360 return set80211param(drv, IEEE80211_PARAM_PRIVACY, enabled);
364 madwifi_set_sta_authorized(void *priv, const u8 *addr, int authorized)
366 struct madwifi_driver_data *drv = priv;
367 struct ieee80211req_mlme mlme;
370 wpa_printf(MSG_DEBUG, "%s: addr=%s authorized=%d",
371 __func__, ether_sprintf(addr), authorized);
374 mlme.im_op = IEEE80211_MLME_AUTHORIZE;
376 mlme.im_op = IEEE80211_MLME_UNAUTHORIZE;
378 memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
379 ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
381 wpa_printf(MSG_DEBUG, "%s: Failed to %sauthorize STA " MACSTR,
382 __func__, authorized ? "" : "un", MAC2STR(addr));
389 madwifi_sta_set_flags(void *priv, const u8 *addr, int total_flags,
390 int flags_or, int flags_and)
392 /* For now, only support setting Authorized flag */
393 if (flags_or & WLAN_STA_AUTHORIZED)
394 return madwifi_set_sta_authorized(priv, addr, 1);
395 if (!(flags_and & WLAN_STA_AUTHORIZED))
396 return madwifi_set_sta_authorized(priv, addr, 0);
401 madwifi_del_key(void *priv, const u8 *addr, int key_idx)
403 struct madwifi_driver_data *drv = priv;
404 struct ieee80211req_del_key wk;
407 wpa_printf(MSG_DEBUG, "%s: addr=%s key_idx=%d",
408 __func__, ether_sprintf(addr), key_idx);
410 memset(&wk, 0, sizeof(wk));
412 memcpy(wk.idk_macaddr, addr, IEEE80211_ADDR_LEN);
413 wk.idk_keyix = (u8) IEEE80211_KEYIX_NONE;
415 wk.idk_keyix = key_idx;
418 ret = set80211priv(drv, IEEE80211_IOCTL_DELKEY, &wk, sizeof(wk));
420 wpa_printf(MSG_DEBUG, "%s: Failed to delete key (addr %s"
421 " key_idx %d)", __func__, ether_sprintf(addr),
429 madwifi_set_key(const char *ifname, void *priv, wpa_alg alg, const u8 *addr,
430 int key_idx, int set_tx, const u8 *seq, size_t seq_len,
431 const u8 *key, size_t key_len)
433 struct madwifi_driver_data *drv = priv;
434 struct ieee80211req_key wk;
438 if (alg == WPA_ALG_NONE)
439 return madwifi_del_key(drv, addr, key_idx);
441 wpa_printf(MSG_DEBUG, "%s: alg=%d addr=%s key_idx=%d",
442 __func__, alg, ether_sprintf(addr), key_idx);
446 cipher = IEEE80211_CIPHER_WEP;
449 cipher = IEEE80211_CIPHER_TKIP;
452 cipher = IEEE80211_CIPHER_AES_CCM;
455 printf("%s: unknown/unsupported algorithm %d\n",
460 if (key_len > sizeof(wk.ik_keydata)) {
461 printf("%s: key length %lu too big\n", __func__,
462 (unsigned long) key_len);
466 memset(&wk, 0, sizeof(wk));
468 wk.ik_flags = IEEE80211_KEY_RECV | IEEE80211_KEY_XMIT;
470 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
471 wk.ik_keyix = key_idx;
472 wk.ik_flags |= IEEE80211_KEY_DEFAULT;
474 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
475 wk.ik_keyix = IEEE80211_KEYIX_NONE;
477 wk.ik_keylen = key_len;
478 memcpy(wk.ik_keydata, key, key_len);
480 ret = set80211priv(drv, IEEE80211_IOCTL_SETKEY, &wk, sizeof(wk));
482 wpa_printf(MSG_DEBUG, "%s: Failed to set key (addr %s"
483 " key_idx %d alg %d key_len %lu set_tx %d)",
484 __func__, ether_sprintf(wk.ik_macaddr), key_idx,
485 alg, (unsigned long) key_len, set_tx);
493 madwifi_get_seqnum(const char *ifname, void *priv, const u8 *addr, int idx,
496 struct madwifi_driver_data *drv = priv;
497 struct ieee80211req_key wk;
499 wpa_printf(MSG_DEBUG, "%s: addr=%s idx=%d",
500 __func__, ether_sprintf(addr), idx);
502 memset(&wk, 0, sizeof(wk));
504 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
506 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
509 if (set80211priv(drv, IEEE80211_IOCTL_GETKEY, &wk, sizeof(wk))) {
510 wpa_printf(MSG_DEBUG, "%s: Failed to get encryption data "
511 "(addr " MACSTR " key_idx %d)",
512 __func__, MAC2STR(wk.ik_macaddr), idx);
516 #ifdef WORDS_BIGENDIAN
519 * wk.ik_keytsc is in host byte order (big endian), need to
520 * swap it to match with the byte order used in WPA.
523 u8 tmp[WPA_KEY_RSC_LEN];
524 memcpy(tmp, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
525 for (i = 0; i < WPA_KEY_RSC_LEN; i++) {
526 seq[i] = tmp[WPA_KEY_RSC_LEN - i - 1];
529 #else /* WORDS_BIGENDIAN */
530 memcpy(seq, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
531 #endif /* WORDS_BIGENDIAN */
537 madwifi_flush(void *priv)
539 u8 allsta[IEEE80211_ADDR_LEN];
540 memset(allsta, 0xff, IEEE80211_ADDR_LEN);
541 return madwifi_sta_deauth(priv, allsta, IEEE80211_REASON_AUTH_LEAVE);
546 madwifi_read_sta_driver_data(void *priv, struct hostap_sta_driver_data *data,
549 struct madwifi_driver_data *drv = priv;
550 struct ieee80211req_sta_stats stats;
552 memset(data, 0, sizeof(*data));
555 * Fetch statistics for station from the system.
557 memset(&stats, 0, sizeof(stats));
558 memcpy(stats.is_u.macaddr, addr, IEEE80211_ADDR_LEN);
559 if (set80211priv(drv, IEEE80211_IOCTL_STA_STATS,
560 &stats, sizeof(stats))) {
561 wpa_printf(MSG_DEBUG, "%s: Failed to fetch STA stats (addr "
562 MACSTR ")", __func__, MAC2STR(addr));
563 if (memcmp(addr, drv->acct_mac, ETH_ALEN) == 0) {
564 memcpy(data, &drv->acct_data, sizeof(*data));
568 printf("Failed to get station stats information element.\n");
572 data->rx_packets = stats.is_stats.ns_rx_data;
573 data->rx_bytes = stats.is_stats.ns_rx_bytes;
574 data->tx_packets = stats.is_stats.ns_tx_data;
575 data->tx_bytes = stats.is_stats.ns_tx_bytes;
581 madwifi_sta_clear_stats(void *priv, const u8 *addr)
583 struct madwifi_driver_data *drv = priv;
584 struct ieee80211req_mlme mlme;
587 wpa_printf(MSG_DEBUG, "%s: addr=%s", __func__, ether_sprintf(addr));
589 mlme.im_op = IEEE80211_MLME_CLEAR_STATS;
590 memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
591 ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme,
594 wpa_printf(MSG_DEBUG, "%s: Failed to clear STA stats (addr "
595 MACSTR ")", __func__, MAC2STR(addr));
603 madwifi_set_opt_ie(const char *ifname, void *priv, const u8 *ie, size_t ie_len)
606 * Do nothing; we setup parameters at startup that define the
607 * contents of the beacon information element.
613 madwifi_sta_deauth(void *priv, const u8 *addr, int reason_code)
615 struct madwifi_driver_data *drv = priv;
616 struct ieee80211req_mlme mlme;
619 wpa_printf(MSG_DEBUG, "%s: addr=%s reason_code=%d",
620 __func__, ether_sprintf(addr), reason_code);
622 mlme.im_op = IEEE80211_MLME_DEAUTH;
623 mlme.im_reason = reason_code;
624 memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
625 ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
627 wpa_printf(MSG_DEBUG, "%s: Failed to deauth STA (addr " MACSTR
629 __func__, MAC2STR(addr), reason_code);
636 madwifi_sta_disassoc(void *priv, const u8 *addr, int reason_code)
638 struct madwifi_driver_data *drv = priv;
639 struct ieee80211req_mlme mlme;
642 wpa_printf(MSG_DEBUG, "%s: addr=%s reason_code=%d",
643 __func__, ether_sprintf(addr), reason_code);
645 mlme.im_op = IEEE80211_MLME_DISASSOC;
646 mlme.im_reason = reason_code;
647 memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
648 ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
650 wpa_printf(MSG_DEBUG, "%s: Failed to disassoc STA (addr "
651 MACSTR " reason %d)",
652 __func__, MAC2STR(addr), reason_code);
659 static void madwifi_raw_receive(void *ctx, const u8 *src_addr, const u8 *buf,
662 struct madwifi_driver_data *drv = ctx;
663 const struct ieee80211_mgmt *mgmt;
668 /* Send Probe Request information to WPS processing */
670 if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req))
672 mgmt = (const struct ieee80211_mgmt *) buf;
674 fc = le_to_host16(mgmt->frame_control);
675 if (WLAN_FC_GET_TYPE(fc) != WLAN_FC_TYPE_MGMT ||
676 WLAN_FC_GET_STYPE(fc) != WLAN_FC_STYPE_PROBE_REQ)
680 ie = mgmt->u.probe_req.variable;
681 ie_len = len - (IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req));
683 hostapd_wps_probe_req_rx(drv->hapd, mgmt->sa, ie, ie_len);
685 #endif /* CONFIG_WPS */
687 static int madwifi_receive_probe_req(struct madwifi_driver_data *drv)
691 struct ieee80211req_set_filter filt;
693 wpa_printf(MSG_DEBUG, "%s Enter", __func__);
694 filt.app_filterype = IEEE80211_FILTER_TYPE_PROBE_REQ;
696 ret = set80211priv(drv, IEEE80211_IOCTL_FILTERFRAME, &filt,
697 sizeof(struct ieee80211req_set_filter));
701 drv->sock_raw = l2_packet_init(drv->iface, NULL, ETH_P_80211_RAW,
702 madwifi_raw_receive, drv, 1);
703 if (drv->sock_raw == NULL)
705 #endif /* CONFIG_WPS */
711 madwifi_set_wps_ie(void *priv, const u8 *ie, size_t len, u32 frametype)
713 struct madwifi_driver_data *drv = priv;
715 struct ieee80211req_getset_appiebuf *beac_ie;
717 wpa_printf(MSG_DEBUG, "%s buflen = %lu", __func__,
718 (unsigned long) len);
720 beac_ie = (struct ieee80211req_getset_appiebuf *) buf;
721 beac_ie->app_frmtype = frametype;
722 beac_ie->app_buflen = len;
723 memcpy(&(beac_ie->app_buf[0]), ie, len);
725 return set80211priv(drv, IEEE80211_IOCTL_SET_APPIEBUF, beac_ie,
726 sizeof(struct ieee80211req_getset_appiebuf) + len);
730 madwifi_set_wps_beacon_ie(const char *ifname, void *priv, const u8 *ie,
733 return madwifi_set_wps_ie(priv, ie, len, IEEE80211_APPIE_FRAME_BEACON);
737 madwifi_set_wps_probe_resp_ie(const char *ifname, void *priv, const u8 *ie,
740 return madwifi_set_wps_ie(priv, ie, len,
741 IEEE80211_APPIE_FRAME_PROBE_RESP);
743 #else /* CONFIG_WPS */
744 #define madwifi_set_wps_beacon_ie NULL
745 #define madwifi_set_wps_probe_resp_ie NULL
746 #endif /* CONFIG_WPS */
749 madwifi_new_sta(struct madwifi_driver_data *drv, u8 addr[IEEE80211_ADDR_LEN])
751 struct hostapd_data *hapd = drv->hapd;
752 struct ieee80211req_wpaie ie;
757 * Fetch negotiated WPA/RSN parameters from the system.
759 memset(&ie, 0, sizeof(ie));
760 memcpy(ie.wpa_macaddr, addr, IEEE80211_ADDR_LEN);
761 if (set80211priv(drv, IEEE80211_IOCTL_GETWPAIE, &ie, sizeof(ie))) {
763 * See ATH_WPS_IE comment in the beginning of the file for a
764 * possible cause for the failure..
766 wpa_printf(MSG_DEBUG, "%s: Failed to get WPA/RSN IE: %s",
767 __func__, strerror(errno));
770 wpa_hexdump(MSG_MSGDUMP, "madwifi req WPA IE",
771 ie.wpa_ie, IEEE80211_MAX_OPT_IE);
772 wpa_hexdump(MSG_MSGDUMP, "madwifi req RSN IE",
773 ie.rsn_ie, IEEE80211_MAX_OPT_IE);
775 /* madwifi seems to return some random data if WPA/RSN IE is not set.
776 * Assume the IE was not included if the IE type is unknown. */
777 if (iebuf[0] != WLAN_EID_VENDOR_SPECIFIC)
779 if (iebuf[1] == 0 && ie.rsn_ie[1] > 0) {
780 /* madwifi-ng svn #1453 added rsn_ie. Use it, if wpa_ie was not
781 * set. This is needed for WPA2. */
783 if (iebuf[0] != WLAN_EID_RSN)
794 res = hostapd_notif_assoc(hapd, addr, iebuf, ielen);
796 if (memcmp(addr, drv->acct_mac, ETH_ALEN) == 0) {
797 /* Cached accounting data is not valid anymore. */
798 memset(drv->acct_mac, 0, ETH_ALEN);
799 memset(&drv->acct_data, 0, sizeof(drv->acct_data));
806 madwifi_wireless_event_wireless_custom(struct madwifi_driver_data *drv,
807 char *custom, char *end)
809 wpa_printf(MSG_DEBUG, "Custom wireless event: '%s'", custom);
811 if (strncmp(custom, "MLME-MICHAELMICFAILURE.indication", 33) == 0) {
814 pos = strstr(custom, "addr=");
816 wpa_printf(MSG_DEBUG,
817 "MLME-MICHAELMICFAILURE.indication "
818 "without sender address ignored");
822 if (hwaddr_aton(pos, addr) == 0) {
823 hostapd_michael_mic_failure(drv->hapd, addr);
825 wpa_printf(MSG_DEBUG,
826 "MLME-MICHAELMICFAILURE.indication "
827 "with invalid MAC address");
829 } else if (strncmp(custom, "STA-TRAFFIC-STAT", 16) == 0) {
833 while ((key = strchr(key, '\n')) != NULL) {
835 value = strchr(key, '=');
839 val = strtoul(value, NULL, 10);
840 if (strcmp(key, "mac") == 0)
841 hwaddr_aton(value, drv->acct_mac);
842 else if (strcmp(key, "rx_packets") == 0)
843 drv->acct_data.rx_packets = val;
844 else if (strcmp(key, "tx_packets") == 0)
845 drv->acct_data.tx_packets = val;
846 else if (strcmp(key, "rx_bytes") == 0)
847 drv->acct_data.rx_bytes = val;
848 else if (strcmp(key, "tx_bytes") == 0)
849 drv->acct_data.tx_bytes = val;
853 } else if (strncmp(custom, "PUSH-BUTTON.indication", 22) == 0) {
854 /* Some atheros kernels send push button as a wireless event */
855 /* PROBLEM! this event is received for ALL BSSs ...
856 * so all are enabled for WPS... ugh.
858 hostapd_wps_button_pushed(drv->hapd);
859 } else if (strncmp(custom, "Manage.prob_req ", 16) == 0) {
861 * Atheros driver uses a hack to pass Probe Request frames as a
862 * binary data in the custom wireless event. The old way (using
863 * packet sniffing) didn't work when bridging.
864 * Format: "Manage.prob_req <frame len>" | zero padding | frame
866 #define WPS_FRAM_TAG_SIZE 30 /* hardcoded in driver */
867 int len = atoi(custom + 16);
868 if (len < 0 || custom + WPS_FRAM_TAG_SIZE + len > end) {
869 wpa_printf(MSG_DEBUG, "Invalid Manage.prob_req event "
873 madwifi_raw_receive(drv, NULL,
874 (u8 *) custom + WPS_FRAM_TAG_SIZE, len);
875 #endif /* CONFIG_WPS */
880 madwifi_wireless_event_wireless(struct madwifi_driver_data *drv,
883 struct iw_event iwe_buf, *iwe = &iwe_buf;
884 char *pos, *end, *custom, *buf;
889 while (pos + IW_EV_LCP_LEN <= end) {
890 /* Event data may be unaligned, so make a local, aligned copy
891 * before processing. */
892 memcpy(&iwe_buf, pos, IW_EV_LCP_LEN);
893 wpa_printf(MSG_MSGDUMP, "Wireless event: cmd=0x%x len=%d",
895 if (iwe->len <= IW_EV_LCP_LEN)
898 custom = pos + IW_EV_POINT_LEN;
899 if (drv->we_version > 18 &&
900 (iwe->cmd == IWEVMICHAELMICFAILURE ||
901 iwe->cmd == IWEVASSOCREQIE ||
902 iwe->cmd == IWEVCUSTOM)) {
903 /* WE-19 removed the pointer from struct iw_point */
904 char *dpos = (char *) &iwe_buf.u.data.length;
905 int dlen = dpos - (char *) &iwe_buf;
906 memcpy(dpos, pos + IW_EV_LCP_LEN,
907 sizeof(struct iw_event) - dlen);
909 memcpy(&iwe_buf, pos, sizeof(struct iw_event));
910 custom += IW_EV_POINT_OFF;
915 hostapd_notif_disassoc(drv->hapd,
916 (u8 *) iwe->u.addr.sa_data);
919 madwifi_new_sta(drv, (u8 *) iwe->u.addr.sa_data);
922 /* Driver hack.. Use IWEVASSOCREQIE to bypass
923 * IWEVCUSTOM size limitations. Need to handle this
924 * just like IWEVCUSTOM.
927 if (custom + iwe->u.data.length > end)
929 buf = malloc(iwe->u.data.length + 1);
932 memcpy(buf, custom, iwe->u.data.length);
933 buf[iwe->u.data.length] = '\0';
934 madwifi_wireless_event_wireless_custom(
935 drv, buf, buf + iwe->u.data.length);
946 madwifi_wireless_event_rtm_newlink(struct madwifi_driver_data *drv,
947 struct nlmsghdr *h, int len)
949 struct ifinfomsg *ifi;
950 int attrlen, nlmsg_len, rta_len;
951 struct rtattr * attr;
953 if (len < (int) sizeof(*ifi))
958 if (ifi->ifi_index != drv->ifindex)
961 nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
963 attrlen = h->nlmsg_len - nlmsg_len;
967 attr = (struct rtattr *) (((char *) ifi) + nlmsg_len);
969 rta_len = RTA_ALIGN(sizeof(struct rtattr));
970 while (RTA_OK(attr, attrlen)) {
971 if (attr->rta_type == IFLA_WIRELESS) {
972 madwifi_wireless_event_wireless(
973 drv, ((char *) attr) + rta_len,
974 attr->rta_len - rta_len);
976 attr = RTA_NEXT(attr, attrlen);
982 madwifi_wireless_event_receive(int sock, void *eloop_ctx, void *sock_ctx)
986 struct sockaddr_nl from;
989 struct madwifi_driver_data *drv = eloop_ctx;
991 fromlen = sizeof(from);
992 left = recvfrom(sock, buf, sizeof(buf), MSG_DONTWAIT,
993 (struct sockaddr *) &from, &fromlen);
995 if (errno != EINTR && errno != EAGAIN)
996 perror("recvfrom(netlink)");
1000 h = (struct nlmsghdr *) buf;
1001 while (left >= (int) sizeof(*h)) {
1005 plen = len - sizeof(*h);
1006 if (len > left || plen < 0) {
1007 printf("Malformed netlink message: "
1008 "len=%d left=%d plen=%d\n",
1013 switch (h->nlmsg_type) {
1015 madwifi_wireless_event_rtm_newlink(drv, h, plen);
1019 len = NLMSG_ALIGN(len);
1021 h = (struct nlmsghdr *) ((char *) h + len);
1025 printf("%d extra bytes in the end of netlink message\n", left);
1031 madwifi_get_we_version(struct madwifi_driver_data *drv)
1033 struct iw_range *range;
1038 drv->we_version = 0;
1041 * Use larger buffer than struct iw_range in order to allow the
1042 * structure to grow in the future.
1044 buflen = sizeof(struct iw_range) + 500;
1045 range = os_zalloc(buflen);
1049 memset(&iwr, 0, sizeof(iwr));
1050 os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1051 iwr.u.data.pointer = (caddr_t) range;
1052 iwr.u.data.length = buflen;
1054 minlen = ((char *) &range->enc_capa) - (char *) range +
1055 sizeof(range->enc_capa);
1057 if (ioctl(drv->ioctl_sock, SIOCGIWRANGE, &iwr) < 0) {
1058 perror("ioctl[SIOCGIWRANGE]");
1061 } else if (iwr.u.data.length >= minlen &&
1062 range->we_version_compiled >= 18) {
1063 wpa_printf(MSG_DEBUG, "SIOCGIWRANGE: WE(compiled)=%d "
1064 "WE(source)=%d enc_capa=0x%x",
1065 range->we_version_compiled,
1066 range->we_version_source,
1068 drv->we_version = range->we_version_compiled;
1077 madwifi_wireless_event_init(struct madwifi_driver_data *drv)
1080 struct sockaddr_nl local;
1082 madwifi_get_we_version(drv);
1084 drv->wext_sock = -1;
1086 s = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
1088 perror("socket(PF_NETLINK,SOCK_RAW,NETLINK_ROUTE)");
1092 memset(&local, 0, sizeof(local));
1093 local.nl_family = AF_NETLINK;
1094 local.nl_groups = RTMGRP_LINK;
1095 if (bind(s, (struct sockaddr *) &local, sizeof(local)) < 0) {
1096 perror("bind(netlink)");
1101 eloop_register_read_sock(s, madwifi_wireless_event_receive, drv, NULL);
1109 madwifi_wireless_event_deinit(struct madwifi_driver_data *drv)
1111 if (drv->wext_sock < 0)
1113 eloop_unregister_read_sock(drv->wext_sock);
1114 close(drv->wext_sock);
1119 madwifi_send_eapol(void *priv, const u8 *addr, const u8 *data, size_t data_len,
1120 int encrypt, const u8 *own_addr)
1122 struct madwifi_driver_data *drv = priv;
1123 unsigned char buf[3000];
1124 unsigned char *bp = buf;
1125 struct l2_ethhdr *eth;
1130 * Prepend the Ethernet header. If the caller left us
1131 * space at the front we could just insert it but since
1132 * we don't know we copy to a local buffer. Given the frequency
1133 * and size of frames this probably doesn't matter.
1135 len = data_len + sizeof(struct l2_ethhdr);
1136 if (len > sizeof(buf)) {
1139 printf("EAPOL frame discarded, cannot malloc temp "
1140 "buffer of size %lu!\n", (unsigned long) len);
1144 eth = (struct l2_ethhdr *) bp;
1145 memcpy(eth->h_dest, addr, ETH_ALEN);
1146 memcpy(eth->h_source, own_addr, ETH_ALEN);
1147 eth->h_proto = host_to_be16(ETH_P_EAPOL);
1148 memcpy(eth+1, data, data_len);
1150 wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", bp, len);
1152 status = l2_packet_send(drv->sock_xmit, addr, ETH_P_EAPOL, bp, len);
1160 handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
1162 struct madwifi_driver_data *drv = ctx;
1163 hostapd_eapol_receive(drv->hapd, src_addr,
1164 buf + sizeof(struct l2_ethhdr),
1165 len - sizeof(struct l2_ethhdr));
1169 madwifi_init(struct hostapd_data *hapd)
1171 struct madwifi_driver_data *drv;
1175 drv = os_zalloc(sizeof(struct madwifi_driver_data));
1177 printf("Could not allocate memory for madwifi driver data\n");
1182 drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
1183 if (drv->ioctl_sock < 0) {
1184 perror("socket[PF_INET,SOCK_DGRAM]");
1187 memcpy(drv->iface, hapd->conf->iface, sizeof(drv->iface));
1189 memset(&ifr, 0, sizeof(ifr));
1190 os_strlcpy(ifr.ifr_name, drv->iface, sizeof(ifr.ifr_name));
1191 if (ioctl(drv->ioctl_sock, SIOCGIFINDEX, &ifr) != 0) {
1192 perror("ioctl(SIOCGIFINDEX)");
1195 drv->ifindex = ifr.ifr_ifindex;
1197 drv->sock_xmit = l2_packet_init(drv->iface, NULL, ETH_P_EAPOL,
1198 handle_read, drv, 1);
1199 if (drv->sock_xmit == NULL)
1201 if (l2_packet_get_own_addr(drv->sock_xmit, hapd->own_addr))
1203 if (hapd->conf->bridge[0] != '\0') {
1204 wpa_printf(MSG_DEBUG, "Configure bridge %s for EAPOL traffic.",
1205 hapd->conf->bridge);
1206 drv->sock_recv = l2_packet_init(hapd->conf->bridge, NULL,
1207 ETH_P_EAPOL, handle_read, drv,
1209 if (drv->sock_recv == NULL)
1212 drv->sock_recv = drv->sock_xmit;
1214 memset(&iwr, 0, sizeof(iwr));
1215 os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1217 iwr.u.mode = IW_MODE_MASTER;
1219 if (ioctl(drv->ioctl_sock, SIOCSIWMODE, &iwr) < 0) {
1220 perror("ioctl[SIOCSIWMODE]");
1221 printf("Could not set interface to master mode!\n");
1225 madwifi_set_iface_flags(drv, 0); /* mark down during setup */
1226 madwifi_set_privacy(drv->iface, drv, 0); /* default to no privacy */
1228 madwifi_receive_probe_req(drv);
1230 if (madwifi_wireless_event_init(drv))
1235 if (drv->sock_xmit != NULL)
1236 l2_packet_deinit(drv->sock_xmit);
1237 if (drv->ioctl_sock >= 0)
1238 close(drv->ioctl_sock);
1246 madwifi_deinit(void *priv)
1248 struct madwifi_driver_data *drv = priv;
1250 madwifi_wireless_event_deinit(drv);
1251 (void) madwifi_set_iface_flags(drv, 0);
1252 if (drv->ioctl_sock >= 0)
1253 close(drv->ioctl_sock);
1254 if (drv->sock_recv != NULL && drv->sock_recv != drv->sock_xmit)
1255 l2_packet_deinit(drv->sock_recv);
1256 if (drv->sock_xmit != NULL)
1257 l2_packet_deinit(drv->sock_xmit);
1259 l2_packet_deinit(drv->sock_raw);
1264 madwifi_set_ssid(const char *ifname, void *priv, const u8 *buf, int len)
1266 struct madwifi_driver_data *drv = priv;
1269 memset(&iwr, 0, sizeof(iwr));
1270 os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1271 iwr.u.essid.flags = 1; /* SSID active */
1272 iwr.u.essid.pointer = (caddr_t) buf;
1273 iwr.u.essid.length = len + 1;
1275 if (ioctl(drv->ioctl_sock, SIOCSIWESSID, &iwr) < 0) {
1276 perror("ioctl[SIOCSIWESSID]");
1277 printf("len=%d\n", len);
1284 madwifi_get_ssid(const char *ifname, void *priv, u8 *buf, int len)
1286 struct madwifi_driver_data *drv = priv;
1290 memset(&iwr, 0, sizeof(iwr));
1291 os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1292 iwr.u.essid.pointer = (caddr_t) buf;
1293 iwr.u.essid.length = len;
1295 if (ioctl(drv->ioctl_sock, SIOCGIWESSID, &iwr) < 0) {
1296 perror("ioctl[SIOCGIWESSID]");
1299 ret = iwr.u.essid.length;
1305 madwifi_set_countermeasures(void *priv, int enabled)
1307 struct madwifi_driver_data *drv = priv;
1308 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
1309 return set80211param(drv, IEEE80211_PARAM_COUNTERMEASURES, enabled);
1313 madwifi_commit(void *priv)
1315 return madwifi_set_iface_flags(priv, 1);
1318 const struct hapd_driver_ops wpa_driver_atheros_ops = {
1320 .init = madwifi_init,
1321 .deinit = madwifi_deinit,
1322 .set_ieee8021x = madwifi_set_ieee8021x,
1323 .set_privacy = madwifi_set_privacy,
1324 .set_key = madwifi_set_key,
1325 .get_seqnum = madwifi_get_seqnum,
1326 .flush = madwifi_flush,
1327 .set_generic_elem = madwifi_set_opt_ie,
1328 .sta_set_flags = madwifi_sta_set_flags,
1329 .read_sta_data = madwifi_read_sta_driver_data,
1330 .send_eapol = madwifi_send_eapol,
1331 .sta_disassoc = madwifi_sta_disassoc,
1332 .sta_deauth = madwifi_sta_deauth,
1333 .set_ssid = madwifi_set_ssid,
1334 .get_ssid = madwifi_get_ssid,
1335 .set_countermeasures = madwifi_set_countermeasures,
1336 .sta_clear_stats = madwifi_sta_clear_stats,
1337 .commit = madwifi_commit,
1338 .set_wps_beacon_ie = madwifi_set_wps_beacon_ie,
1339 .set_wps_probe_resp_ie = madwifi_set_wps_probe_resp_ie,