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"
63 #include "priv_netlink.h"
64 #include "l2_packet/l2_packet.h"
65 #include "common/ieee802_11_defs.h"
68 struct madwifi_driver_data {
69 struct hostapd_data *hapd; /* back pointer */
71 char iface[IFNAMSIZ + 1];
73 struct l2_packet_data *sock_xmit; /* raw packet xmit socket */
74 struct l2_packet_data *sock_recv; /* raw packet recv socket */
75 int ioctl_sock; /* socket for ioctl() use */
76 int wext_sock; /* socket for wireless events */
78 u8 acct_mac[ETH_ALEN];
79 struct hostap_sta_driver_data acct_data;
81 struct l2_packet_data *sock_raw; /* raw 802.11 management frames */
84 static int madwifi_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
88 set80211priv(struct madwifi_driver_data *drv, int op, void *data, int len)
91 int do_inline = len < IFNAMSIZ;
93 /* Certain ioctls must use the non-inlined method */
94 if (op == IEEE80211_IOCTL_SET_APPIEBUF ||
95 op == IEEE80211_IOCTL_FILTERFRAME)
98 memset(&iwr, 0, sizeof(iwr));
99 os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
102 * Argument data fits inline; put it there.
104 memcpy(iwr.u.name, data, len);
107 * Argument data too big for inline transfer; setup a
108 * parameter block instead; the kernel will transfer
109 * the data for the driver.
111 iwr.u.data.pointer = data;
112 iwr.u.data.length = len;
115 if (ioctl(drv->ioctl_sock, op, &iwr) < 0) {
116 int first = IEEE80211_IOCTL_SETPARAM;
117 static const char *opnames[] = {
118 "ioctl[IEEE80211_IOCTL_SETPARAM]",
119 "ioctl[IEEE80211_IOCTL_GETPARAM]",
120 "ioctl[IEEE80211_IOCTL_SETKEY]",
121 "ioctl[IEEE80211_IOCTL_SETWMMPARAMS]",
122 "ioctl[IEEE80211_IOCTL_DELKEY]",
123 "ioctl[IEEE80211_IOCTL_GETWMMPARAMS]",
124 "ioctl[IEEE80211_IOCTL_SETMLME]",
125 "ioctl[IEEE80211_IOCTL_GETCHANINFO]",
126 "ioctl[IEEE80211_IOCTL_SETOPTIE]",
127 "ioctl[IEEE80211_IOCTL_GETOPTIE]",
128 "ioctl[IEEE80211_IOCTL_ADDMAC]",
129 "ioctl[IEEE80211_IOCTL_DELMAC]",
130 "ioctl[IEEE80211_IOCTL_GETCHANLIST]",
131 "ioctl[IEEE80211_IOCTL_SETCHANLIST]",
132 "ioctl[IEEE80211_IOCTL_KICKMAC]",
133 "ioctl[IEEE80211_IOCTL_CHANSWITCH]",
134 "ioctl[IEEE80211_IOCTL_GETMODE]",
135 "ioctl[IEEE80211_IOCTL_SETMODE]",
136 "ioctl[IEEE80211_IOCTL_GET_APPIEBUF]",
137 "ioctl[IEEE80211_IOCTL_SET_APPIEBUF]",
139 "ioctl[IEEE80211_IOCTL_FILTERFRAME]",
141 int idx = op - first;
143 idx < (int) (sizeof(opnames) / sizeof(opnames[0])) &&
145 perror(opnames[idx]);
147 perror("ioctl[unknown???]");
148 wpa_printf(MSG_DEBUG, "Failed ioctl: 0x%x", op);
156 set80211param(struct madwifi_driver_data *drv, int op, int arg)
160 memset(&iwr, 0, sizeof(iwr));
161 os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
163 memcpy(iwr.u.name+sizeof(__u32), &arg, sizeof(arg));
165 if (ioctl(drv->ioctl_sock, IEEE80211_IOCTL_SETPARAM, &iwr) < 0) {
166 perror("ioctl[IEEE80211_IOCTL_SETPARAM]");
167 wpa_printf(MSG_DEBUG, "%s: Failed to set parameter (op %d "
168 "arg %d)", __func__, op, arg);
174 #ifndef CONFIG_NO_STDOUT_DEBUG
176 ether_sprintf(const u8 *addr)
178 static char buf[sizeof(MACSTR)];
181 snprintf(buf, sizeof(buf), MACSTR, MAC2STR(addr));
183 snprintf(buf, sizeof(buf), MACSTR, 0,0,0,0,0,0);
186 #endif /* CONFIG_NO_STDOUT_DEBUG */
189 * Configure WPA parameters.
192 madwifi_configure_wpa(struct madwifi_driver_data *drv,
193 struct wpa_bss_params *params)
197 switch (params->wpa_group) {
198 case WPA_CIPHER_CCMP:
199 v = IEEE80211_CIPHER_AES_CCM;
201 case WPA_CIPHER_TKIP:
202 v = IEEE80211_CIPHER_TKIP;
204 case WPA_CIPHER_WEP104:
205 v = IEEE80211_CIPHER_WEP;
207 case WPA_CIPHER_WEP40:
208 v = IEEE80211_CIPHER_WEP;
210 case WPA_CIPHER_NONE:
211 v = IEEE80211_CIPHER_NONE;
214 wpa_printf(MSG_ERROR, "Unknown group key cipher %u",
218 wpa_printf(MSG_DEBUG, "%s: group key cipher=%d", __func__, v);
219 if (set80211param(drv, IEEE80211_PARAM_MCASTCIPHER, v)) {
220 printf("Unable to set group key cipher to %u\n", v);
223 if (v == IEEE80211_CIPHER_WEP) {
224 /* key length is done only for specific ciphers */
225 v = (params->wpa_group == WPA_CIPHER_WEP104 ? 13 : 5);
226 if (set80211param(drv, IEEE80211_PARAM_MCASTKEYLEN, v)) {
227 printf("Unable to set group key length to %u\n", v);
233 if (params->wpa_pairwise & WPA_CIPHER_CCMP)
234 v |= 1<<IEEE80211_CIPHER_AES_CCM;
235 if (params->wpa_pairwise & WPA_CIPHER_TKIP)
236 v |= 1<<IEEE80211_CIPHER_TKIP;
237 if (params->wpa_pairwise & WPA_CIPHER_NONE)
238 v |= 1<<IEEE80211_CIPHER_NONE;
239 wpa_printf(MSG_DEBUG, "%s: pairwise key ciphers=0x%x", __func__, v);
240 if (set80211param(drv, IEEE80211_PARAM_UCASTCIPHERS, v)) {
241 printf("Unable to set pairwise key ciphers to 0x%x\n", v);
245 wpa_printf(MSG_DEBUG, "%s: key management algorithms=0x%x",
246 __func__, params->wpa_key_mgmt);
247 if (set80211param(drv, IEEE80211_PARAM_KEYMGTALGS,
248 params->wpa_key_mgmt)) {
249 printf("Unable to set key management algorithms to 0x%x\n",
250 params->wpa_key_mgmt);
255 if (params->rsn_preauth)
257 wpa_printf(MSG_DEBUG, "%s: rsn capabilities=0x%x",
258 __func__, params->rsn_preauth);
259 if (set80211param(drv, IEEE80211_PARAM_RSNCAPS, v)) {
260 printf("Unable to set RSN capabilities to 0x%x\n", v);
264 wpa_printf(MSG_DEBUG, "%s: enable WPA=0x%x", __func__, params->wpa);
265 if (set80211param(drv, IEEE80211_PARAM_WPA, params->wpa)) {
266 printf("Unable to set WPA to %u\n", params->wpa);
274 madwifi_set_iface_flags(void *priv, int dev_up)
276 struct madwifi_driver_data *drv = priv;
279 wpa_printf(MSG_DEBUG, "%s: dev_up=%d", __func__, dev_up);
281 if (drv->ioctl_sock < 0)
284 memset(&ifr, 0, sizeof(ifr));
285 os_strlcpy(ifr.ifr_name, drv->iface, IFNAMSIZ);
287 if (ioctl(drv->ioctl_sock, SIOCGIFFLAGS, &ifr) != 0) {
288 perror("ioctl[SIOCGIFFLAGS]");
293 ifr.ifr_flags |= IFF_UP;
295 ifr.ifr_flags &= ~IFF_UP;
297 if (ioctl(drv->ioctl_sock, SIOCSIFFLAGS, &ifr) != 0) {
298 perror("ioctl[SIOCSIFFLAGS]");
306 madwifi_set_ieee8021x(void *priv, struct wpa_bss_params *params)
308 struct madwifi_driver_data *drv = priv;
310 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, params->enabled);
312 if (!params->enabled) {
313 /* XXX restore state */
314 return set80211param(priv, IEEE80211_PARAM_AUTHMODE,
315 IEEE80211_AUTH_AUTO);
317 if (!params->wpa && !params->ieee802_1x) {
318 hostapd_logger(drv->hapd, NULL, HOSTAPD_MODULE_DRIVER,
319 HOSTAPD_LEVEL_WARNING, "No 802.1X or WPA enabled!");
322 if (params->wpa && madwifi_configure_wpa(drv, params) != 0) {
323 hostapd_logger(drv->hapd, NULL, HOSTAPD_MODULE_DRIVER,
324 HOSTAPD_LEVEL_WARNING, "Error configuring WPA state!");
327 if (set80211param(priv, IEEE80211_PARAM_AUTHMODE,
328 (params->wpa ? IEEE80211_AUTH_WPA : IEEE80211_AUTH_8021X))) {
329 hostapd_logger(drv->hapd, NULL, HOSTAPD_MODULE_DRIVER,
330 HOSTAPD_LEVEL_WARNING, "Error enabling WPA/802.1X!");
338 madwifi_set_privacy(const char *ifname, void *priv, int enabled)
340 struct madwifi_driver_data *drv = priv;
342 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
344 return set80211param(drv, IEEE80211_PARAM_PRIVACY, enabled);
348 madwifi_set_sta_authorized(void *priv, const u8 *addr, int authorized)
350 struct madwifi_driver_data *drv = priv;
351 struct ieee80211req_mlme mlme;
354 wpa_printf(MSG_DEBUG, "%s: addr=%s authorized=%d",
355 __func__, ether_sprintf(addr), authorized);
358 mlme.im_op = IEEE80211_MLME_AUTHORIZE;
360 mlme.im_op = IEEE80211_MLME_UNAUTHORIZE;
362 memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
363 ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
365 wpa_printf(MSG_DEBUG, "%s: Failed to %sauthorize STA " MACSTR,
366 __func__, authorized ? "" : "un", MAC2STR(addr));
373 madwifi_sta_set_flags(void *priv, const u8 *addr, int total_flags,
374 int flags_or, int flags_and)
376 /* For now, only support setting Authorized flag */
377 if (flags_or & WPA_STA_AUTHORIZED)
378 return madwifi_set_sta_authorized(priv, addr, 1);
379 if (!(flags_and & WPA_STA_AUTHORIZED))
380 return madwifi_set_sta_authorized(priv, addr, 0);
385 madwifi_del_key(void *priv, const u8 *addr, int key_idx)
387 struct madwifi_driver_data *drv = priv;
388 struct ieee80211req_del_key wk;
391 wpa_printf(MSG_DEBUG, "%s: addr=%s key_idx=%d",
392 __func__, ether_sprintf(addr), key_idx);
394 memset(&wk, 0, sizeof(wk));
396 memcpy(wk.idk_macaddr, addr, IEEE80211_ADDR_LEN);
397 wk.idk_keyix = (u8) IEEE80211_KEYIX_NONE;
399 wk.idk_keyix = key_idx;
402 ret = set80211priv(drv, IEEE80211_IOCTL_DELKEY, &wk, sizeof(wk));
404 wpa_printf(MSG_DEBUG, "%s: Failed to delete key (addr %s"
405 " key_idx %d)", __func__, ether_sprintf(addr),
413 madwifi_set_key(const char *ifname, void *priv, wpa_alg alg, const u8 *addr,
414 int key_idx, int set_tx, const u8 *seq, size_t seq_len,
415 const u8 *key, size_t key_len)
417 struct madwifi_driver_data *drv = priv;
418 struct ieee80211req_key wk;
422 if (alg == WPA_ALG_NONE)
423 return madwifi_del_key(drv, addr, key_idx);
425 wpa_printf(MSG_DEBUG, "%s: alg=%d addr=%s key_idx=%d",
426 __func__, alg, ether_sprintf(addr), key_idx);
430 cipher = IEEE80211_CIPHER_WEP;
433 cipher = IEEE80211_CIPHER_TKIP;
436 cipher = IEEE80211_CIPHER_AES_CCM;
439 printf("%s: unknown/unsupported algorithm %d\n",
444 if (key_len > sizeof(wk.ik_keydata)) {
445 printf("%s: key length %lu too big\n", __func__,
446 (unsigned long) key_len);
450 memset(&wk, 0, sizeof(wk));
452 wk.ik_flags = IEEE80211_KEY_RECV | IEEE80211_KEY_XMIT;
454 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
455 wk.ik_keyix = key_idx;
456 wk.ik_flags |= IEEE80211_KEY_DEFAULT;
458 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
459 wk.ik_keyix = IEEE80211_KEYIX_NONE;
461 wk.ik_keylen = key_len;
462 memcpy(wk.ik_keydata, key, key_len);
464 ret = set80211priv(drv, IEEE80211_IOCTL_SETKEY, &wk, sizeof(wk));
466 wpa_printf(MSG_DEBUG, "%s: Failed to set key (addr %s"
467 " key_idx %d alg %d key_len %lu set_tx %d)",
468 __func__, ether_sprintf(wk.ik_macaddr), key_idx,
469 alg, (unsigned long) key_len, set_tx);
477 madwifi_get_seqnum(const char *ifname, void *priv, const u8 *addr, int idx,
480 struct madwifi_driver_data *drv = priv;
481 struct ieee80211req_key wk;
483 wpa_printf(MSG_DEBUG, "%s: addr=%s idx=%d",
484 __func__, ether_sprintf(addr), idx);
486 memset(&wk, 0, sizeof(wk));
488 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
490 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
493 if (set80211priv(drv, IEEE80211_IOCTL_GETKEY, &wk, sizeof(wk))) {
494 wpa_printf(MSG_DEBUG, "%s: Failed to get encryption data "
495 "(addr " MACSTR " key_idx %d)",
496 __func__, MAC2STR(wk.ik_macaddr), idx);
500 #ifdef WORDS_BIGENDIAN
503 * wk.ik_keytsc is in host byte order (big endian), need to
504 * swap it to match with the byte order used in WPA.
507 u8 tmp[WPA_KEY_RSC_LEN];
508 memcpy(tmp, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
509 for (i = 0; i < WPA_KEY_RSC_LEN; i++) {
510 seq[i] = tmp[WPA_KEY_RSC_LEN - i - 1];
513 #else /* WORDS_BIGENDIAN */
514 memcpy(seq, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
515 #endif /* WORDS_BIGENDIAN */
521 madwifi_flush(void *priv)
523 u8 allsta[IEEE80211_ADDR_LEN];
524 memset(allsta, 0xff, IEEE80211_ADDR_LEN);
525 return madwifi_sta_deauth(priv, NULL, allsta,
526 IEEE80211_REASON_AUTH_LEAVE);
531 madwifi_read_sta_driver_data(void *priv, struct hostap_sta_driver_data *data,
534 struct madwifi_driver_data *drv = priv;
535 struct ieee80211req_sta_stats stats;
537 memset(data, 0, sizeof(*data));
540 * Fetch statistics for station from the system.
542 memset(&stats, 0, sizeof(stats));
543 memcpy(stats.is_u.macaddr, addr, IEEE80211_ADDR_LEN);
544 if (set80211priv(drv, IEEE80211_IOCTL_STA_STATS,
545 &stats, sizeof(stats))) {
546 wpa_printf(MSG_DEBUG, "%s: Failed to fetch STA stats (addr "
547 MACSTR ")", __func__, MAC2STR(addr));
548 if (memcmp(addr, drv->acct_mac, ETH_ALEN) == 0) {
549 memcpy(data, &drv->acct_data, sizeof(*data));
553 printf("Failed to get station stats information element.\n");
557 data->rx_packets = stats.is_stats.ns_rx_data;
558 data->rx_bytes = stats.is_stats.ns_rx_bytes;
559 data->tx_packets = stats.is_stats.ns_tx_data;
560 data->tx_bytes = stats.is_stats.ns_tx_bytes;
566 madwifi_sta_clear_stats(void *priv, const u8 *addr)
568 struct madwifi_driver_data *drv = priv;
569 struct ieee80211req_mlme mlme;
572 wpa_printf(MSG_DEBUG, "%s: addr=%s", __func__, ether_sprintf(addr));
574 mlme.im_op = IEEE80211_MLME_CLEAR_STATS;
575 memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
576 ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme,
579 wpa_printf(MSG_DEBUG, "%s: Failed to clear STA stats (addr "
580 MACSTR ")", __func__, MAC2STR(addr));
588 madwifi_set_opt_ie(const char *ifname, void *priv, const u8 *ie, size_t ie_len)
591 * Do nothing; we setup parameters at startup that define the
592 * contents of the beacon information element.
598 madwifi_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
601 struct madwifi_driver_data *drv = priv;
602 struct ieee80211req_mlme mlme;
605 wpa_printf(MSG_DEBUG, "%s: addr=%s reason_code=%d",
606 __func__, ether_sprintf(addr), reason_code);
608 mlme.im_op = IEEE80211_MLME_DEAUTH;
609 mlme.im_reason = reason_code;
610 memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
611 ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
613 wpa_printf(MSG_DEBUG, "%s: Failed to deauth STA (addr " MACSTR
615 __func__, MAC2STR(addr), reason_code);
622 madwifi_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
625 struct madwifi_driver_data *drv = priv;
626 struct ieee80211req_mlme mlme;
629 wpa_printf(MSG_DEBUG, "%s: addr=%s reason_code=%d",
630 __func__, ether_sprintf(addr), reason_code);
632 mlme.im_op = IEEE80211_MLME_DISASSOC;
633 mlme.im_reason = reason_code;
634 memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
635 ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
637 wpa_printf(MSG_DEBUG, "%s: Failed to disassoc STA (addr "
638 MACSTR " reason %d)",
639 __func__, MAC2STR(addr), reason_code);
646 static void madwifi_raw_receive(void *ctx, const u8 *src_addr, const u8 *buf,
649 struct madwifi_driver_data *drv = ctx;
650 const struct ieee80211_mgmt *mgmt;
655 /* Send Probe Request information to WPS processing */
657 if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req))
659 mgmt = (const struct ieee80211_mgmt *) buf;
661 fc = le_to_host16(mgmt->frame_control);
662 if (WLAN_FC_GET_TYPE(fc) != WLAN_FC_TYPE_MGMT ||
663 WLAN_FC_GET_STYPE(fc) != WLAN_FC_STYPE_PROBE_REQ)
667 ie = mgmt->u.probe_req.variable;
668 ie_len = len - (IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req));
670 hostapd_probe_req_rx(drv->hapd, mgmt->sa, ie, ie_len);
672 #endif /* CONFIG_WPS */
674 static int madwifi_receive_probe_req(struct madwifi_driver_data *drv)
678 struct ieee80211req_set_filter filt;
680 wpa_printf(MSG_DEBUG, "%s Enter", __func__);
681 filt.app_filterype = IEEE80211_FILTER_TYPE_PROBE_REQ;
683 ret = set80211priv(drv, IEEE80211_IOCTL_FILTERFRAME, &filt,
684 sizeof(struct ieee80211req_set_filter));
688 drv->sock_raw = l2_packet_init(drv->iface, NULL, ETH_P_80211_RAW,
689 madwifi_raw_receive, drv, 1);
690 if (drv->sock_raw == NULL)
692 #endif /* CONFIG_WPS */
698 madwifi_set_wps_ie(void *priv, const u8 *ie, size_t len, u32 frametype)
700 struct madwifi_driver_data *drv = priv;
702 struct ieee80211req_getset_appiebuf *beac_ie;
704 wpa_printf(MSG_DEBUG, "%s buflen = %lu", __func__,
705 (unsigned long) len);
707 beac_ie = (struct ieee80211req_getset_appiebuf *) buf;
708 beac_ie->app_frmtype = frametype;
709 beac_ie->app_buflen = len;
710 memcpy(&(beac_ie->app_buf[0]), ie, len);
712 return set80211priv(drv, IEEE80211_IOCTL_SET_APPIEBUF, beac_ie,
713 sizeof(struct ieee80211req_getset_appiebuf) + len);
717 madwifi_set_wps_beacon_ie(const char *ifname, void *priv, const u8 *ie,
720 return madwifi_set_wps_ie(priv, ie, len, IEEE80211_APPIE_FRAME_BEACON);
724 madwifi_set_wps_probe_resp_ie(const char *ifname, void *priv, const u8 *ie,
727 return madwifi_set_wps_ie(priv, ie, len,
728 IEEE80211_APPIE_FRAME_PROBE_RESP);
730 #else /* CONFIG_WPS */
731 #define madwifi_set_wps_beacon_ie NULL
732 #define madwifi_set_wps_probe_resp_ie NULL
733 #endif /* CONFIG_WPS */
736 madwifi_new_sta(struct madwifi_driver_data *drv, u8 addr[IEEE80211_ADDR_LEN])
738 struct hostapd_data *hapd = drv->hapd;
739 struct ieee80211req_wpaie ie;
744 * Fetch negotiated WPA/RSN parameters from the system.
746 memset(&ie, 0, sizeof(ie));
747 memcpy(ie.wpa_macaddr, addr, IEEE80211_ADDR_LEN);
748 if (set80211priv(drv, IEEE80211_IOCTL_GETWPAIE, &ie, sizeof(ie))) {
750 * See ATH_WPS_IE comment in the beginning of the file for a
751 * possible cause for the failure..
753 wpa_printf(MSG_DEBUG, "%s: Failed to get WPA/RSN IE: %s",
754 __func__, strerror(errno));
757 wpa_hexdump(MSG_MSGDUMP, "madwifi req WPA IE",
758 ie.wpa_ie, IEEE80211_MAX_OPT_IE);
759 wpa_hexdump(MSG_MSGDUMP, "madwifi req RSN IE",
760 ie.rsn_ie, IEEE80211_MAX_OPT_IE);
762 /* madwifi seems to return some random data if WPA/RSN IE is not set.
763 * Assume the IE was not included if the IE type is unknown. */
764 if (iebuf[0] != WLAN_EID_VENDOR_SPECIFIC)
766 if (iebuf[1] == 0 && ie.rsn_ie[1] > 0) {
767 /* madwifi-ng svn #1453 added rsn_ie. Use it, if wpa_ie was not
768 * set. This is needed for WPA2. */
770 if (iebuf[0] != WLAN_EID_RSN)
781 res = hostapd_notif_assoc(hapd, addr, iebuf, ielen);
783 if (memcmp(addr, drv->acct_mac, ETH_ALEN) == 0) {
784 /* Cached accounting data is not valid anymore. */
785 memset(drv->acct_mac, 0, ETH_ALEN);
786 memset(&drv->acct_data, 0, sizeof(drv->acct_data));
793 madwifi_wireless_event_wireless_custom(struct madwifi_driver_data *drv,
794 char *custom, char *end)
796 wpa_printf(MSG_DEBUG, "Custom wireless event: '%s'", custom);
798 if (strncmp(custom, "MLME-MICHAELMICFAILURE.indication", 33) == 0) {
801 pos = strstr(custom, "addr=");
803 wpa_printf(MSG_DEBUG,
804 "MLME-MICHAELMICFAILURE.indication "
805 "without sender address ignored");
809 if (hwaddr_aton(pos, addr) == 0) {
810 hostapd_michael_mic_failure(drv->hapd, addr);
812 wpa_printf(MSG_DEBUG,
813 "MLME-MICHAELMICFAILURE.indication "
814 "with invalid MAC address");
816 } else if (strncmp(custom, "STA-TRAFFIC-STAT", 16) == 0) {
820 while ((key = strchr(key, '\n')) != NULL) {
822 value = strchr(key, '=');
826 val = strtoul(value, NULL, 10);
827 if (strcmp(key, "mac") == 0)
828 hwaddr_aton(value, drv->acct_mac);
829 else if (strcmp(key, "rx_packets") == 0)
830 drv->acct_data.rx_packets = val;
831 else if (strcmp(key, "tx_packets") == 0)
832 drv->acct_data.tx_packets = val;
833 else if (strcmp(key, "rx_bytes") == 0)
834 drv->acct_data.rx_bytes = val;
835 else if (strcmp(key, "tx_bytes") == 0)
836 drv->acct_data.tx_bytes = val;
840 } else if (strncmp(custom, "PUSH-BUTTON.indication", 22) == 0) {
841 /* Some atheros kernels send push button as a wireless event */
842 /* PROBLEM! this event is received for ALL BSSs ...
843 * so all are enabled for WPS... ugh.
845 hostapd_button_pushed(drv->hapd);
846 } else if (strncmp(custom, "Manage.prob_req ", 16) == 0) {
848 * Atheros driver uses a hack to pass Probe Request frames as a
849 * binary data in the custom wireless event. The old way (using
850 * packet sniffing) didn't work when bridging.
851 * Format: "Manage.prob_req <frame len>" | zero padding | frame
853 #define WPS_FRAM_TAG_SIZE 30 /* hardcoded in driver */
854 int len = atoi(custom + 16);
855 if (len < 0 || custom + WPS_FRAM_TAG_SIZE + len > end) {
856 wpa_printf(MSG_DEBUG, "Invalid Manage.prob_req event "
860 madwifi_raw_receive(drv, NULL,
861 (u8 *) custom + WPS_FRAM_TAG_SIZE, len);
862 #endif /* CONFIG_WPS */
867 madwifi_wireless_event_wireless(struct madwifi_driver_data *drv,
870 struct iw_event iwe_buf, *iwe = &iwe_buf;
871 char *pos, *end, *custom, *buf;
876 while (pos + IW_EV_LCP_LEN <= end) {
877 /* Event data may be unaligned, so make a local, aligned copy
878 * before processing. */
879 memcpy(&iwe_buf, pos, IW_EV_LCP_LEN);
880 wpa_printf(MSG_MSGDUMP, "Wireless event: cmd=0x%x len=%d",
882 if (iwe->len <= IW_EV_LCP_LEN)
885 custom = pos + IW_EV_POINT_LEN;
886 if (drv->we_version > 18 &&
887 (iwe->cmd == IWEVMICHAELMICFAILURE ||
888 iwe->cmd == IWEVASSOCREQIE ||
889 iwe->cmd == IWEVCUSTOM)) {
890 /* WE-19 removed the pointer from struct iw_point */
891 char *dpos = (char *) &iwe_buf.u.data.length;
892 int dlen = dpos - (char *) &iwe_buf;
893 memcpy(dpos, pos + IW_EV_LCP_LEN,
894 sizeof(struct iw_event) - dlen);
896 memcpy(&iwe_buf, pos, sizeof(struct iw_event));
897 custom += IW_EV_POINT_OFF;
902 hostapd_notif_disassoc(drv->hapd,
903 (u8 *) iwe->u.addr.sa_data);
906 madwifi_new_sta(drv, (u8 *) iwe->u.addr.sa_data);
909 /* Driver hack.. Use IWEVASSOCREQIE to bypass
910 * IWEVCUSTOM size limitations. Need to handle this
911 * just like IWEVCUSTOM.
914 if (custom + iwe->u.data.length > end)
916 buf = malloc(iwe->u.data.length + 1);
919 memcpy(buf, custom, iwe->u.data.length);
920 buf[iwe->u.data.length] = '\0';
921 madwifi_wireless_event_wireless_custom(
922 drv, buf, buf + iwe->u.data.length);
933 madwifi_wireless_event_rtm_newlink(struct madwifi_driver_data *drv,
934 struct nlmsghdr *h, int len)
936 struct ifinfomsg *ifi;
937 int attrlen, nlmsg_len, rta_len;
938 struct rtattr * attr;
940 if (len < (int) sizeof(*ifi))
945 if (ifi->ifi_index != drv->ifindex)
948 nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
950 attrlen = h->nlmsg_len - nlmsg_len;
954 attr = (struct rtattr *) (((char *) ifi) + nlmsg_len);
956 rta_len = RTA_ALIGN(sizeof(struct rtattr));
957 while (RTA_OK(attr, attrlen)) {
958 if (attr->rta_type == IFLA_WIRELESS) {
959 madwifi_wireless_event_wireless(
960 drv, ((char *) attr) + rta_len,
961 attr->rta_len - rta_len);
963 attr = RTA_NEXT(attr, attrlen);
969 madwifi_wireless_event_receive(int sock, void *eloop_ctx, void *sock_ctx)
973 struct sockaddr_nl from;
976 struct madwifi_driver_data *drv = eloop_ctx;
978 fromlen = sizeof(from);
979 left = recvfrom(sock, buf, sizeof(buf), MSG_DONTWAIT,
980 (struct sockaddr *) &from, &fromlen);
982 if (errno != EINTR && errno != EAGAIN)
983 perror("recvfrom(netlink)");
987 h = (struct nlmsghdr *) buf;
988 while (left >= (int) sizeof(*h)) {
992 plen = len - sizeof(*h);
993 if (len > left || plen < 0) {
994 printf("Malformed netlink message: "
995 "len=%d left=%d plen=%d\n",
1000 switch (h->nlmsg_type) {
1002 madwifi_wireless_event_rtm_newlink(drv, h, plen);
1006 len = NLMSG_ALIGN(len);
1008 h = (struct nlmsghdr *) ((char *) h + len);
1012 printf("%d extra bytes in the end of netlink message\n", left);
1018 madwifi_get_we_version(struct madwifi_driver_data *drv)
1020 struct iw_range *range;
1025 drv->we_version = 0;
1028 * Use larger buffer than struct iw_range in order to allow the
1029 * structure to grow in the future.
1031 buflen = sizeof(struct iw_range) + 500;
1032 range = os_zalloc(buflen);
1036 memset(&iwr, 0, sizeof(iwr));
1037 os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1038 iwr.u.data.pointer = (caddr_t) range;
1039 iwr.u.data.length = buflen;
1041 minlen = ((char *) &range->enc_capa) - (char *) range +
1042 sizeof(range->enc_capa);
1044 if (ioctl(drv->ioctl_sock, SIOCGIWRANGE, &iwr) < 0) {
1045 perror("ioctl[SIOCGIWRANGE]");
1048 } else if (iwr.u.data.length >= minlen &&
1049 range->we_version_compiled >= 18) {
1050 wpa_printf(MSG_DEBUG, "SIOCGIWRANGE: WE(compiled)=%d "
1051 "WE(source)=%d enc_capa=0x%x",
1052 range->we_version_compiled,
1053 range->we_version_source,
1055 drv->we_version = range->we_version_compiled;
1064 madwifi_wireless_event_init(struct madwifi_driver_data *drv)
1067 struct sockaddr_nl local;
1069 madwifi_get_we_version(drv);
1071 drv->wext_sock = -1;
1073 s = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
1075 perror("socket(PF_NETLINK,SOCK_RAW,NETLINK_ROUTE)");
1079 memset(&local, 0, sizeof(local));
1080 local.nl_family = AF_NETLINK;
1081 local.nl_groups = RTMGRP_LINK;
1082 if (bind(s, (struct sockaddr *) &local, sizeof(local)) < 0) {
1083 perror("bind(netlink)");
1088 eloop_register_read_sock(s, madwifi_wireless_event_receive, drv, NULL);
1096 madwifi_wireless_event_deinit(struct madwifi_driver_data *drv)
1098 if (drv->wext_sock < 0)
1100 eloop_unregister_read_sock(drv->wext_sock);
1101 close(drv->wext_sock);
1106 madwifi_send_eapol(void *priv, const u8 *addr, const u8 *data, size_t data_len,
1107 int encrypt, const u8 *own_addr)
1109 struct madwifi_driver_data *drv = priv;
1110 unsigned char buf[3000];
1111 unsigned char *bp = buf;
1112 struct l2_ethhdr *eth;
1117 * Prepend the Ethernet header. If the caller left us
1118 * space at the front we could just insert it but since
1119 * we don't know we copy to a local buffer. Given the frequency
1120 * and size of frames this probably doesn't matter.
1122 len = data_len + sizeof(struct l2_ethhdr);
1123 if (len > sizeof(buf)) {
1126 printf("EAPOL frame discarded, cannot malloc temp "
1127 "buffer of size %lu!\n", (unsigned long) len);
1131 eth = (struct l2_ethhdr *) bp;
1132 memcpy(eth->h_dest, addr, ETH_ALEN);
1133 memcpy(eth->h_source, own_addr, ETH_ALEN);
1134 eth->h_proto = host_to_be16(ETH_P_EAPOL);
1135 memcpy(eth+1, data, data_len);
1137 wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", bp, len);
1139 status = l2_packet_send(drv->sock_xmit, addr, ETH_P_EAPOL, bp, len);
1147 handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
1149 struct madwifi_driver_data *drv = ctx;
1150 hostapd_eapol_receive(drv->hapd, src_addr,
1151 buf + sizeof(struct l2_ethhdr),
1152 len - sizeof(struct l2_ethhdr));
1156 madwifi_init(struct hostapd_data *hapd, struct wpa_init_params *params)
1158 struct madwifi_driver_data *drv;
1162 drv = os_zalloc(sizeof(struct madwifi_driver_data));
1164 printf("Could not allocate memory for madwifi driver data\n");
1169 drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
1170 if (drv->ioctl_sock < 0) {
1171 perror("socket[PF_INET,SOCK_DGRAM]");
1174 memcpy(drv->iface, params->ifname, sizeof(drv->iface));
1176 memset(&ifr, 0, sizeof(ifr));
1177 os_strlcpy(ifr.ifr_name, drv->iface, sizeof(ifr.ifr_name));
1178 if (ioctl(drv->ioctl_sock, SIOCGIFINDEX, &ifr) != 0) {
1179 perror("ioctl(SIOCGIFINDEX)");
1182 drv->ifindex = ifr.ifr_ifindex;
1184 drv->sock_xmit = l2_packet_init(drv->iface, NULL, ETH_P_EAPOL,
1185 handle_read, drv, 1);
1186 if (drv->sock_xmit == NULL)
1188 if (l2_packet_get_own_addr(drv->sock_xmit, params->own_addr))
1190 if (params->bridge[0]) {
1191 wpa_printf(MSG_DEBUG, "Configure bridge %s for EAPOL traffic.",
1193 drv->sock_recv = l2_packet_init(params->bridge[0], NULL,
1194 ETH_P_EAPOL, handle_read, drv,
1196 if (drv->sock_recv == NULL)
1199 drv->sock_recv = drv->sock_xmit;
1201 memset(&iwr, 0, sizeof(iwr));
1202 os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1204 iwr.u.mode = IW_MODE_MASTER;
1206 if (ioctl(drv->ioctl_sock, SIOCSIWMODE, &iwr) < 0) {
1207 perror("ioctl[SIOCSIWMODE]");
1208 printf("Could not set interface to master mode!\n");
1212 madwifi_set_iface_flags(drv, 0); /* mark down during setup */
1213 madwifi_set_privacy(drv->iface, drv, 0); /* default to no privacy */
1215 madwifi_receive_probe_req(drv);
1217 if (madwifi_wireless_event_init(drv))
1222 if (drv->sock_xmit != NULL)
1223 l2_packet_deinit(drv->sock_xmit);
1224 if (drv->ioctl_sock >= 0)
1225 close(drv->ioctl_sock);
1233 madwifi_deinit(void *priv)
1235 struct madwifi_driver_data *drv = priv;
1237 madwifi_wireless_event_deinit(drv);
1238 (void) madwifi_set_iface_flags(drv, 0);
1239 if (drv->ioctl_sock >= 0)
1240 close(drv->ioctl_sock);
1241 if (drv->sock_recv != NULL && drv->sock_recv != drv->sock_xmit)
1242 l2_packet_deinit(drv->sock_recv);
1243 if (drv->sock_xmit != NULL)
1244 l2_packet_deinit(drv->sock_xmit);
1246 l2_packet_deinit(drv->sock_raw);
1251 madwifi_set_ssid(const char *ifname, void *priv, const u8 *buf, int len)
1253 struct madwifi_driver_data *drv = priv;
1256 memset(&iwr, 0, sizeof(iwr));
1257 os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1258 iwr.u.essid.flags = 1; /* SSID active */
1259 iwr.u.essid.pointer = (caddr_t) buf;
1260 iwr.u.essid.length = len + 1;
1262 if (ioctl(drv->ioctl_sock, SIOCSIWESSID, &iwr) < 0) {
1263 perror("ioctl[SIOCSIWESSID]");
1264 printf("len=%d\n", len);
1271 madwifi_get_ssid(const char *ifname, void *priv, u8 *buf, int len)
1273 struct madwifi_driver_data *drv = priv;
1277 memset(&iwr, 0, sizeof(iwr));
1278 os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1279 iwr.u.essid.pointer = (caddr_t) buf;
1280 iwr.u.essid.length = len;
1282 if (ioctl(drv->ioctl_sock, SIOCGIWESSID, &iwr) < 0) {
1283 perror("ioctl[SIOCGIWESSID]");
1286 ret = iwr.u.essid.length;
1292 madwifi_set_countermeasures(void *priv, int enabled)
1294 struct madwifi_driver_data *drv = priv;
1295 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
1296 return set80211param(drv, IEEE80211_PARAM_COUNTERMEASURES, enabled);
1300 madwifi_commit(void *priv)
1302 return madwifi_set_iface_flags(priv, 1);
1305 const struct wpa_driver_ops wpa_driver_atheros_ops = {
1307 .hapd_init = madwifi_init,
1308 .deinit = madwifi_deinit,
1309 .set_ieee8021x = madwifi_set_ieee8021x,
1310 .set_privacy = madwifi_set_privacy,
1311 .set_key = madwifi_set_key,
1312 .get_seqnum = madwifi_get_seqnum,
1313 .flush = madwifi_flush,
1314 .set_generic_elem = madwifi_set_opt_ie,
1315 .sta_set_flags = madwifi_sta_set_flags,
1316 .read_sta_data = madwifi_read_sta_driver_data,
1317 .hapd_send_eapol = madwifi_send_eapol,
1318 .sta_disassoc = madwifi_sta_disassoc,
1319 .sta_deauth = madwifi_sta_deauth,
1320 .hapd_set_ssid = madwifi_set_ssid,
1321 .hapd_get_ssid = madwifi_get_ssid,
1322 .set_countermeasures = madwifi_set_countermeasures,
1323 .sta_clear_stats = madwifi_sta_clear_stats,
1324 .commit = madwifi_commit,
1325 .set_wps_beacon_ie = madwifi_set_wps_beacon_ie,
1326 .set_wps_probe_resp_ie = madwifi_set_wps_probe_resp_ie,