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"
68 #include "common/ieee802_11_defs.h"
71 struct madwifi_driver_data {
72 struct hostapd_data *hapd; /* back pointer */
74 char iface[IFNAMSIZ + 1];
76 struct l2_packet_data *sock_xmit; /* raw packet xmit socket */
77 struct l2_packet_data *sock_recv; /* raw packet recv socket */
78 int ioctl_sock; /* socket for ioctl() use */
79 int wext_sock; /* socket for wireless events */
81 u8 acct_mac[ETH_ALEN];
82 struct hostap_sta_driver_data acct_data;
84 struct l2_packet_data *sock_raw; /* raw 802.11 management frames */
87 static int madwifi_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
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]");
309 madwifi_set_ieee8021x(void *priv, struct wpa_bss_params *params)
311 struct madwifi_driver_data *drv = priv;
312 struct hostapd_data *hapd = drv->hapd;
313 struct hostapd_bss_config *conf = hapd->conf;
314 int enabled = params->enabled;
316 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
319 /* XXX restore state */
320 return set80211param(priv, IEEE80211_PARAM_AUTHMODE,
321 IEEE80211_AUTH_AUTO);
323 if (!conf->wpa && !conf->ieee802_1x) {
324 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_DRIVER,
325 HOSTAPD_LEVEL_WARNING, "No 802.1X or WPA enabled!");
328 if (conf->wpa && madwifi_configure_wpa(drv) != 0) {
329 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_DRIVER,
330 HOSTAPD_LEVEL_WARNING, "Error configuring WPA state!");
333 if (set80211param(priv, IEEE80211_PARAM_AUTHMODE,
334 (conf->wpa ? IEEE80211_AUTH_WPA : IEEE80211_AUTH_8021X))) {
335 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_DRIVER,
336 HOSTAPD_LEVEL_WARNING, "Error enabling WPA/802.1X!");
344 madwifi_set_privacy(const char *ifname, void *priv, int enabled)
346 struct madwifi_driver_data *drv = priv;
348 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
350 return set80211param(drv, IEEE80211_PARAM_PRIVACY, enabled);
354 madwifi_set_sta_authorized(void *priv, const u8 *addr, int authorized)
356 struct madwifi_driver_data *drv = priv;
357 struct ieee80211req_mlme mlme;
360 wpa_printf(MSG_DEBUG, "%s: addr=%s authorized=%d",
361 __func__, ether_sprintf(addr), authorized);
364 mlme.im_op = IEEE80211_MLME_AUTHORIZE;
366 mlme.im_op = IEEE80211_MLME_UNAUTHORIZE;
368 memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
369 ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
371 wpa_printf(MSG_DEBUG, "%s: Failed to %sauthorize STA " MACSTR,
372 __func__, authorized ? "" : "un", MAC2STR(addr));
379 madwifi_sta_set_flags(void *priv, const u8 *addr, int total_flags,
380 int flags_or, int flags_and)
382 /* For now, only support setting Authorized flag */
383 if (flags_or & WLAN_STA_AUTHORIZED)
384 return madwifi_set_sta_authorized(priv, addr, 1);
385 if (!(flags_and & WLAN_STA_AUTHORIZED))
386 return madwifi_set_sta_authorized(priv, addr, 0);
391 madwifi_del_key(void *priv, const u8 *addr, int key_idx)
393 struct madwifi_driver_data *drv = priv;
394 struct ieee80211req_del_key wk;
397 wpa_printf(MSG_DEBUG, "%s: addr=%s key_idx=%d",
398 __func__, ether_sprintf(addr), key_idx);
400 memset(&wk, 0, sizeof(wk));
402 memcpy(wk.idk_macaddr, addr, IEEE80211_ADDR_LEN);
403 wk.idk_keyix = (u8) IEEE80211_KEYIX_NONE;
405 wk.idk_keyix = key_idx;
408 ret = set80211priv(drv, IEEE80211_IOCTL_DELKEY, &wk, sizeof(wk));
410 wpa_printf(MSG_DEBUG, "%s: Failed to delete key (addr %s"
411 " key_idx %d)", __func__, ether_sprintf(addr),
419 madwifi_set_key(const char *ifname, void *priv, wpa_alg alg, const u8 *addr,
420 int key_idx, int set_tx, const u8 *seq, size_t seq_len,
421 const u8 *key, size_t key_len)
423 struct madwifi_driver_data *drv = priv;
424 struct ieee80211req_key wk;
428 if (alg == WPA_ALG_NONE)
429 return madwifi_del_key(drv, addr, key_idx);
431 wpa_printf(MSG_DEBUG, "%s: alg=%d addr=%s key_idx=%d",
432 __func__, alg, ether_sprintf(addr), key_idx);
436 cipher = IEEE80211_CIPHER_WEP;
439 cipher = IEEE80211_CIPHER_TKIP;
442 cipher = IEEE80211_CIPHER_AES_CCM;
445 printf("%s: unknown/unsupported algorithm %d\n",
450 if (key_len > sizeof(wk.ik_keydata)) {
451 printf("%s: key length %lu too big\n", __func__,
452 (unsigned long) key_len);
456 memset(&wk, 0, sizeof(wk));
458 wk.ik_flags = IEEE80211_KEY_RECV | IEEE80211_KEY_XMIT;
460 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
461 wk.ik_keyix = key_idx;
462 wk.ik_flags |= IEEE80211_KEY_DEFAULT;
464 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
465 wk.ik_keyix = IEEE80211_KEYIX_NONE;
467 wk.ik_keylen = key_len;
468 memcpy(wk.ik_keydata, key, key_len);
470 ret = set80211priv(drv, IEEE80211_IOCTL_SETKEY, &wk, sizeof(wk));
472 wpa_printf(MSG_DEBUG, "%s: Failed to set key (addr %s"
473 " key_idx %d alg %d key_len %lu set_tx %d)",
474 __func__, ether_sprintf(wk.ik_macaddr), key_idx,
475 alg, (unsigned long) key_len, set_tx);
483 madwifi_get_seqnum(const char *ifname, void *priv, const u8 *addr, int idx,
486 struct madwifi_driver_data *drv = priv;
487 struct ieee80211req_key wk;
489 wpa_printf(MSG_DEBUG, "%s: addr=%s idx=%d",
490 __func__, ether_sprintf(addr), idx);
492 memset(&wk, 0, sizeof(wk));
494 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
496 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
499 if (set80211priv(drv, IEEE80211_IOCTL_GETKEY, &wk, sizeof(wk))) {
500 wpa_printf(MSG_DEBUG, "%s: Failed to get encryption data "
501 "(addr " MACSTR " key_idx %d)",
502 __func__, MAC2STR(wk.ik_macaddr), idx);
506 #ifdef WORDS_BIGENDIAN
509 * wk.ik_keytsc is in host byte order (big endian), need to
510 * swap it to match with the byte order used in WPA.
513 u8 tmp[WPA_KEY_RSC_LEN];
514 memcpy(tmp, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
515 for (i = 0; i < WPA_KEY_RSC_LEN; i++) {
516 seq[i] = tmp[WPA_KEY_RSC_LEN - i - 1];
519 #else /* WORDS_BIGENDIAN */
520 memcpy(seq, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
521 #endif /* WORDS_BIGENDIAN */
527 madwifi_flush(void *priv)
529 u8 allsta[IEEE80211_ADDR_LEN];
530 memset(allsta, 0xff, IEEE80211_ADDR_LEN);
531 return madwifi_sta_deauth(priv, NULL, allsta,
532 IEEE80211_REASON_AUTH_LEAVE);
537 madwifi_read_sta_driver_data(void *priv, struct hostap_sta_driver_data *data,
540 struct madwifi_driver_data *drv = priv;
541 struct ieee80211req_sta_stats stats;
543 memset(data, 0, sizeof(*data));
546 * Fetch statistics for station from the system.
548 memset(&stats, 0, sizeof(stats));
549 memcpy(stats.is_u.macaddr, addr, IEEE80211_ADDR_LEN);
550 if (set80211priv(drv, IEEE80211_IOCTL_STA_STATS,
551 &stats, sizeof(stats))) {
552 wpa_printf(MSG_DEBUG, "%s: Failed to fetch STA stats (addr "
553 MACSTR ")", __func__, MAC2STR(addr));
554 if (memcmp(addr, drv->acct_mac, ETH_ALEN) == 0) {
555 memcpy(data, &drv->acct_data, sizeof(*data));
559 printf("Failed to get station stats information element.\n");
563 data->rx_packets = stats.is_stats.ns_rx_data;
564 data->rx_bytes = stats.is_stats.ns_rx_bytes;
565 data->tx_packets = stats.is_stats.ns_tx_data;
566 data->tx_bytes = stats.is_stats.ns_tx_bytes;
572 madwifi_sta_clear_stats(void *priv, const u8 *addr)
574 struct madwifi_driver_data *drv = priv;
575 struct ieee80211req_mlme mlme;
578 wpa_printf(MSG_DEBUG, "%s: addr=%s", __func__, ether_sprintf(addr));
580 mlme.im_op = IEEE80211_MLME_CLEAR_STATS;
581 memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
582 ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme,
585 wpa_printf(MSG_DEBUG, "%s: Failed to clear STA stats (addr "
586 MACSTR ")", __func__, MAC2STR(addr));
594 madwifi_set_opt_ie(const char *ifname, void *priv, const u8 *ie, size_t ie_len)
597 * Do nothing; we setup parameters at startup that define the
598 * contents of the beacon information element.
604 madwifi_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
607 struct madwifi_driver_data *drv = priv;
608 struct ieee80211req_mlme mlme;
611 wpa_printf(MSG_DEBUG, "%s: addr=%s reason_code=%d",
612 __func__, ether_sprintf(addr), reason_code);
614 mlme.im_op = IEEE80211_MLME_DEAUTH;
615 mlme.im_reason = reason_code;
616 memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
617 ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
619 wpa_printf(MSG_DEBUG, "%s: Failed to deauth STA (addr " MACSTR
621 __func__, MAC2STR(addr), reason_code);
628 madwifi_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
631 struct madwifi_driver_data *drv = priv;
632 struct ieee80211req_mlme mlme;
635 wpa_printf(MSG_DEBUG, "%s: addr=%s reason_code=%d",
636 __func__, ether_sprintf(addr), reason_code);
638 mlme.im_op = IEEE80211_MLME_DISASSOC;
639 mlme.im_reason = reason_code;
640 memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
641 ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
643 wpa_printf(MSG_DEBUG, "%s: Failed to disassoc STA (addr "
644 MACSTR " reason %d)",
645 __func__, MAC2STR(addr), reason_code);
652 static void madwifi_raw_receive(void *ctx, const u8 *src_addr, const u8 *buf,
655 struct madwifi_driver_data *drv = ctx;
656 const struct ieee80211_mgmt *mgmt;
661 /* Send Probe Request information to WPS processing */
663 if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req))
665 mgmt = (const struct ieee80211_mgmt *) buf;
667 fc = le_to_host16(mgmt->frame_control);
668 if (WLAN_FC_GET_TYPE(fc) != WLAN_FC_TYPE_MGMT ||
669 WLAN_FC_GET_STYPE(fc) != WLAN_FC_STYPE_PROBE_REQ)
673 ie = mgmt->u.probe_req.variable;
674 ie_len = len - (IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req));
676 hostapd_probe_req_rx(drv->hapd, mgmt->sa, ie, ie_len);
678 #endif /* CONFIG_WPS */
680 static int madwifi_receive_probe_req(struct madwifi_driver_data *drv)
684 struct ieee80211req_set_filter filt;
686 wpa_printf(MSG_DEBUG, "%s Enter", __func__);
687 filt.app_filterype = IEEE80211_FILTER_TYPE_PROBE_REQ;
689 ret = set80211priv(drv, IEEE80211_IOCTL_FILTERFRAME, &filt,
690 sizeof(struct ieee80211req_set_filter));
694 drv->sock_raw = l2_packet_init(drv->iface, NULL, ETH_P_80211_RAW,
695 madwifi_raw_receive, drv, 1);
696 if (drv->sock_raw == NULL)
698 #endif /* CONFIG_WPS */
704 madwifi_set_wps_ie(void *priv, const u8 *ie, size_t len, u32 frametype)
706 struct madwifi_driver_data *drv = priv;
708 struct ieee80211req_getset_appiebuf *beac_ie;
710 wpa_printf(MSG_DEBUG, "%s buflen = %lu", __func__,
711 (unsigned long) len);
713 beac_ie = (struct ieee80211req_getset_appiebuf *) buf;
714 beac_ie->app_frmtype = frametype;
715 beac_ie->app_buflen = len;
716 memcpy(&(beac_ie->app_buf[0]), ie, len);
718 return set80211priv(drv, IEEE80211_IOCTL_SET_APPIEBUF, beac_ie,
719 sizeof(struct ieee80211req_getset_appiebuf) + len);
723 madwifi_set_wps_beacon_ie(const char *ifname, void *priv, const u8 *ie,
726 return madwifi_set_wps_ie(priv, ie, len, IEEE80211_APPIE_FRAME_BEACON);
730 madwifi_set_wps_probe_resp_ie(const char *ifname, void *priv, const u8 *ie,
733 return madwifi_set_wps_ie(priv, ie, len,
734 IEEE80211_APPIE_FRAME_PROBE_RESP);
736 #else /* CONFIG_WPS */
737 #define madwifi_set_wps_beacon_ie NULL
738 #define madwifi_set_wps_probe_resp_ie NULL
739 #endif /* CONFIG_WPS */
742 madwifi_new_sta(struct madwifi_driver_data *drv, u8 addr[IEEE80211_ADDR_LEN])
744 struct hostapd_data *hapd = drv->hapd;
745 struct ieee80211req_wpaie ie;
750 * Fetch negotiated WPA/RSN parameters from the system.
752 memset(&ie, 0, sizeof(ie));
753 memcpy(ie.wpa_macaddr, addr, IEEE80211_ADDR_LEN);
754 if (set80211priv(drv, IEEE80211_IOCTL_GETWPAIE, &ie, sizeof(ie))) {
756 * See ATH_WPS_IE comment in the beginning of the file for a
757 * possible cause for the failure..
759 wpa_printf(MSG_DEBUG, "%s: Failed to get WPA/RSN IE: %s",
760 __func__, strerror(errno));
763 wpa_hexdump(MSG_MSGDUMP, "madwifi req WPA IE",
764 ie.wpa_ie, IEEE80211_MAX_OPT_IE);
765 wpa_hexdump(MSG_MSGDUMP, "madwifi req RSN IE",
766 ie.rsn_ie, IEEE80211_MAX_OPT_IE);
768 /* madwifi seems to return some random data if WPA/RSN IE is not set.
769 * Assume the IE was not included if the IE type is unknown. */
770 if (iebuf[0] != WLAN_EID_VENDOR_SPECIFIC)
772 if (iebuf[1] == 0 && ie.rsn_ie[1] > 0) {
773 /* madwifi-ng svn #1453 added rsn_ie. Use it, if wpa_ie was not
774 * set. This is needed for WPA2. */
776 if (iebuf[0] != WLAN_EID_RSN)
787 res = hostapd_notif_assoc(hapd, addr, iebuf, ielen);
789 if (memcmp(addr, drv->acct_mac, ETH_ALEN) == 0) {
790 /* Cached accounting data is not valid anymore. */
791 memset(drv->acct_mac, 0, ETH_ALEN);
792 memset(&drv->acct_data, 0, sizeof(drv->acct_data));
799 madwifi_wireless_event_wireless_custom(struct madwifi_driver_data *drv,
800 char *custom, char *end)
802 wpa_printf(MSG_DEBUG, "Custom wireless event: '%s'", custom);
804 if (strncmp(custom, "MLME-MICHAELMICFAILURE.indication", 33) == 0) {
807 pos = strstr(custom, "addr=");
809 wpa_printf(MSG_DEBUG,
810 "MLME-MICHAELMICFAILURE.indication "
811 "without sender address ignored");
815 if (hwaddr_aton(pos, addr) == 0) {
816 hostapd_michael_mic_failure(drv->hapd, addr);
818 wpa_printf(MSG_DEBUG,
819 "MLME-MICHAELMICFAILURE.indication "
820 "with invalid MAC address");
822 } else if (strncmp(custom, "STA-TRAFFIC-STAT", 16) == 0) {
826 while ((key = strchr(key, '\n')) != NULL) {
828 value = strchr(key, '=');
832 val = strtoul(value, NULL, 10);
833 if (strcmp(key, "mac") == 0)
834 hwaddr_aton(value, drv->acct_mac);
835 else if (strcmp(key, "rx_packets") == 0)
836 drv->acct_data.rx_packets = val;
837 else if (strcmp(key, "tx_packets") == 0)
838 drv->acct_data.tx_packets = val;
839 else if (strcmp(key, "rx_bytes") == 0)
840 drv->acct_data.rx_bytes = val;
841 else if (strcmp(key, "tx_bytes") == 0)
842 drv->acct_data.tx_bytes = val;
846 } else if (strncmp(custom, "PUSH-BUTTON.indication", 22) == 0) {
847 /* Some atheros kernels send push button as a wireless event */
848 /* PROBLEM! this event is received for ALL BSSs ...
849 * so all are enabled for WPS... ugh.
851 hostapd_button_pushed(drv->hapd);
852 } else if (strncmp(custom, "Manage.prob_req ", 16) == 0) {
854 * Atheros driver uses a hack to pass Probe Request frames as a
855 * binary data in the custom wireless event. The old way (using
856 * packet sniffing) didn't work when bridging.
857 * Format: "Manage.prob_req <frame len>" | zero padding | frame
859 #define WPS_FRAM_TAG_SIZE 30 /* hardcoded in driver */
860 int len = atoi(custom + 16);
861 if (len < 0 || custom + WPS_FRAM_TAG_SIZE + len > end) {
862 wpa_printf(MSG_DEBUG, "Invalid Manage.prob_req event "
866 madwifi_raw_receive(drv, NULL,
867 (u8 *) custom + WPS_FRAM_TAG_SIZE, len);
868 #endif /* CONFIG_WPS */
873 madwifi_wireless_event_wireless(struct madwifi_driver_data *drv,
876 struct iw_event iwe_buf, *iwe = &iwe_buf;
877 char *pos, *end, *custom, *buf;
882 while (pos + IW_EV_LCP_LEN <= end) {
883 /* Event data may be unaligned, so make a local, aligned copy
884 * before processing. */
885 memcpy(&iwe_buf, pos, IW_EV_LCP_LEN);
886 wpa_printf(MSG_MSGDUMP, "Wireless event: cmd=0x%x len=%d",
888 if (iwe->len <= IW_EV_LCP_LEN)
891 custom = pos + IW_EV_POINT_LEN;
892 if (drv->we_version > 18 &&
893 (iwe->cmd == IWEVMICHAELMICFAILURE ||
894 iwe->cmd == IWEVASSOCREQIE ||
895 iwe->cmd == IWEVCUSTOM)) {
896 /* WE-19 removed the pointer from struct iw_point */
897 char *dpos = (char *) &iwe_buf.u.data.length;
898 int dlen = dpos - (char *) &iwe_buf;
899 memcpy(dpos, pos + IW_EV_LCP_LEN,
900 sizeof(struct iw_event) - dlen);
902 memcpy(&iwe_buf, pos, sizeof(struct iw_event));
903 custom += IW_EV_POINT_OFF;
908 hostapd_notif_disassoc(drv->hapd,
909 (u8 *) iwe->u.addr.sa_data);
912 madwifi_new_sta(drv, (u8 *) iwe->u.addr.sa_data);
915 /* Driver hack.. Use IWEVASSOCREQIE to bypass
916 * IWEVCUSTOM size limitations. Need to handle this
917 * just like IWEVCUSTOM.
920 if (custom + iwe->u.data.length > end)
922 buf = malloc(iwe->u.data.length + 1);
925 memcpy(buf, custom, iwe->u.data.length);
926 buf[iwe->u.data.length] = '\0';
927 madwifi_wireless_event_wireless_custom(
928 drv, buf, buf + iwe->u.data.length);
939 madwifi_wireless_event_rtm_newlink(struct madwifi_driver_data *drv,
940 struct nlmsghdr *h, int len)
942 struct ifinfomsg *ifi;
943 int attrlen, nlmsg_len, rta_len;
944 struct rtattr * attr;
946 if (len < (int) sizeof(*ifi))
951 if (ifi->ifi_index != drv->ifindex)
954 nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
956 attrlen = h->nlmsg_len - nlmsg_len;
960 attr = (struct rtattr *) (((char *) ifi) + nlmsg_len);
962 rta_len = RTA_ALIGN(sizeof(struct rtattr));
963 while (RTA_OK(attr, attrlen)) {
964 if (attr->rta_type == IFLA_WIRELESS) {
965 madwifi_wireless_event_wireless(
966 drv, ((char *) attr) + rta_len,
967 attr->rta_len - rta_len);
969 attr = RTA_NEXT(attr, attrlen);
975 madwifi_wireless_event_receive(int sock, void *eloop_ctx, void *sock_ctx)
979 struct sockaddr_nl from;
982 struct madwifi_driver_data *drv = eloop_ctx;
984 fromlen = sizeof(from);
985 left = recvfrom(sock, buf, sizeof(buf), MSG_DONTWAIT,
986 (struct sockaddr *) &from, &fromlen);
988 if (errno != EINTR && errno != EAGAIN)
989 perror("recvfrom(netlink)");
993 h = (struct nlmsghdr *) buf;
994 while (left >= (int) sizeof(*h)) {
998 plen = len - sizeof(*h);
999 if (len > left || plen < 0) {
1000 printf("Malformed netlink message: "
1001 "len=%d left=%d plen=%d\n",
1006 switch (h->nlmsg_type) {
1008 madwifi_wireless_event_rtm_newlink(drv, h, plen);
1012 len = NLMSG_ALIGN(len);
1014 h = (struct nlmsghdr *) ((char *) h + len);
1018 printf("%d extra bytes in the end of netlink message\n", left);
1024 madwifi_get_we_version(struct madwifi_driver_data *drv)
1026 struct iw_range *range;
1031 drv->we_version = 0;
1034 * Use larger buffer than struct iw_range in order to allow the
1035 * structure to grow in the future.
1037 buflen = sizeof(struct iw_range) + 500;
1038 range = os_zalloc(buflen);
1042 memset(&iwr, 0, sizeof(iwr));
1043 os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1044 iwr.u.data.pointer = (caddr_t) range;
1045 iwr.u.data.length = buflen;
1047 minlen = ((char *) &range->enc_capa) - (char *) range +
1048 sizeof(range->enc_capa);
1050 if (ioctl(drv->ioctl_sock, SIOCGIWRANGE, &iwr) < 0) {
1051 perror("ioctl[SIOCGIWRANGE]");
1054 } else if (iwr.u.data.length >= minlen &&
1055 range->we_version_compiled >= 18) {
1056 wpa_printf(MSG_DEBUG, "SIOCGIWRANGE: WE(compiled)=%d "
1057 "WE(source)=%d enc_capa=0x%x",
1058 range->we_version_compiled,
1059 range->we_version_source,
1061 drv->we_version = range->we_version_compiled;
1070 madwifi_wireless_event_init(struct madwifi_driver_data *drv)
1073 struct sockaddr_nl local;
1075 madwifi_get_we_version(drv);
1077 drv->wext_sock = -1;
1079 s = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
1081 perror("socket(PF_NETLINK,SOCK_RAW,NETLINK_ROUTE)");
1085 memset(&local, 0, sizeof(local));
1086 local.nl_family = AF_NETLINK;
1087 local.nl_groups = RTMGRP_LINK;
1088 if (bind(s, (struct sockaddr *) &local, sizeof(local)) < 0) {
1089 perror("bind(netlink)");
1094 eloop_register_read_sock(s, madwifi_wireless_event_receive, drv, NULL);
1102 madwifi_wireless_event_deinit(struct madwifi_driver_data *drv)
1104 if (drv->wext_sock < 0)
1106 eloop_unregister_read_sock(drv->wext_sock);
1107 close(drv->wext_sock);
1112 madwifi_send_eapol(void *priv, const u8 *addr, const u8 *data, size_t data_len,
1113 int encrypt, const u8 *own_addr)
1115 struct madwifi_driver_data *drv = priv;
1116 unsigned char buf[3000];
1117 unsigned char *bp = buf;
1118 struct l2_ethhdr *eth;
1123 * Prepend the Ethernet header. If the caller left us
1124 * space at the front we could just insert it but since
1125 * we don't know we copy to a local buffer. Given the frequency
1126 * and size of frames this probably doesn't matter.
1128 len = data_len + sizeof(struct l2_ethhdr);
1129 if (len > sizeof(buf)) {
1132 printf("EAPOL frame discarded, cannot malloc temp "
1133 "buffer of size %lu!\n", (unsigned long) len);
1137 eth = (struct l2_ethhdr *) bp;
1138 memcpy(eth->h_dest, addr, ETH_ALEN);
1139 memcpy(eth->h_source, own_addr, ETH_ALEN);
1140 eth->h_proto = host_to_be16(ETH_P_EAPOL);
1141 memcpy(eth+1, data, data_len);
1143 wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", bp, len);
1145 status = l2_packet_send(drv->sock_xmit, addr, ETH_P_EAPOL, bp, len);
1153 handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
1155 struct madwifi_driver_data *drv = ctx;
1156 hostapd_eapol_receive(drv->hapd, src_addr,
1157 buf + sizeof(struct l2_ethhdr),
1158 len - sizeof(struct l2_ethhdr));
1162 madwifi_init(struct hostapd_data *hapd, struct wpa_init_params *params)
1164 struct madwifi_driver_data *drv;
1168 drv = os_zalloc(sizeof(struct madwifi_driver_data));
1170 printf("Could not allocate memory for madwifi driver data\n");
1175 drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
1176 if (drv->ioctl_sock < 0) {
1177 perror("socket[PF_INET,SOCK_DGRAM]");
1180 memcpy(drv->iface, params->ifname, sizeof(drv->iface));
1182 memset(&ifr, 0, sizeof(ifr));
1183 os_strlcpy(ifr.ifr_name, drv->iface, sizeof(ifr.ifr_name));
1184 if (ioctl(drv->ioctl_sock, SIOCGIFINDEX, &ifr) != 0) {
1185 perror("ioctl(SIOCGIFINDEX)");
1188 drv->ifindex = ifr.ifr_ifindex;
1190 drv->sock_xmit = l2_packet_init(drv->iface, NULL, ETH_P_EAPOL,
1191 handle_read, drv, 1);
1192 if (drv->sock_xmit == NULL)
1194 if (l2_packet_get_own_addr(drv->sock_xmit, params->own_addr))
1196 if (params->bridge[0]) {
1197 wpa_printf(MSG_DEBUG, "Configure bridge %s for EAPOL traffic.",
1199 drv->sock_recv = l2_packet_init(params->bridge[0], NULL,
1200 ETH_P_EAPOL, handle_read, drv,
1202 if (drv->sock_recv == NULL)
1205 drv->sock_recv = drv->sock_xmit;
1207 memset(&iwr, 0, sizeof(iwr));
1208 os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1210 iwr.u.mode = IW_MODE_MASTER;
1212 if (ioctl(drv->ioctl_sock, SIOCSIWMODE, &iwr) < 0) {
1213 perror("ioctl[SIOCSIWMODE]");
1214 printf("Could not set interface to master mode!\n");
1218 madwifi_set_iface_flags(drv, 0); /* mark down during setup */
1219 madwifi_set_privacy(drv->iface, drv, 0); /* default to no privacy */
1221 madwifi_receive_probe_req(drv);
1223 if (madwifi_wireless_event_init(drv))
1228 if (drv->sock_xmit != NULL)
1229 l2_packet_deinit(drv->sock_xmit);
1230 if (drv->ioctl_sock >= 0)
1231 close(drv->ioctl_sock);
1239 madwifi_deinit(void *priv)
1241 struct madwifi_driver_data *drv = priv;
1243 madwifi_wireless_event_deinit(drv);
1244 (void) madwifi_set_iface_flags(drv, 0);
1245 if (drv->ioctl_sock >= 0)
1246 close(drv->ioctl_sock);
1247 if (drv->sock_recv != NULL && drv->sock_recv != drv->sock_xmit)
1248 l2_packet_deinit(drv->sock_recv);
1249 if (drv->sock_xmit != NULL)
1250 l2_packet_deinit(drv->sock_xmit);
1252 l2_packet_deinit(drv->sock_raw);
1257 madwifi_set_ssid(const char *ifname, void *priv, const u8 *buf, int len)
1259 struct madwifi_driver_data *drv = priv;
1262 memset(&iwr, 0, sizeof(iwr));
1263 os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1264 iwr.u.essid.flags = 1; /* SSID active */
1265 iwr.u.essid.pointer = (caddr_t) buf;
1266 iwr.u.essid.length = len + 1;
1268 if (ioctl(drv->ioctl_sock, SIOCSIWESSID, &iwr) < 0) {
1269 perror("ioctl[SIOCSIWESSID]");
1270 printf("len=%d\n", len);
1277 madwifi_get_ssid(const char *ifname, void *priv, u8 *buf, int len)
1279 struct madwifi_driver_data *drv = priv;
1283 memset(&iwr, 0, sizeof(iwr));
1284 os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1285 iwr.u.essid.pointer = (caddr_t) buf;
1286 iwr.u.essid.length = len;
1288 if (ioctl(drv->ioctl_sock, SIOCGIWESSID, &iwr) < 0) {
1289 perror("ioctl[SIOCGIWESSID]");
1292 ret = iwr.u.essid.length;
1298 madwifi_set_countermeasures(void *priv, int enabled)
1300 struct madwifi_driver_data *drv = priv;
1301 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
1302 return set80211param(drv, IEEE80211_PARAM_COUNTERMEASURES, enabled);
1306 madwifi_commit(void *priv)
1308 return madwifi_set_iface_flags(priv, 1);
1311 const struct wpa_driver_ops wpa_driver_atheros_ops = {
1313 .hapd_init = madwifi_init,
1314 .deinit = madwifi_deinit,
1315 .set_ieee8021x = madwifi_set_ieee8021x,
1316 .set_privacy = madwifi_set_privacy,
1317 .set_key = madwifi_set_key,
1318 .get_seqnum = madwifi_get_seqnum,
1319 .flush = madwifi_flush,
1320 .set_generic_elem = madwifi_set_opt_ie,
1321 .sta_set_flags = madwifi_sta_set_flags,
1322 .read_sta_data = madwifi_read_sta_driver_data,
1323 .hapd_send_eapol = madwifi_send_eapol,
1324 .sta_disassoc = madwifi_sta_disassoc,
1325 .sta_deauth = madwifi_sta_deauth,
1326 .hapd_set_ssid = madwifi_set_ssid,
1327 .hapd_get_ssid = madwifi_get_ssid,
1328 .set_countermeasures = madwifi_set_countermeasures,
1329 .sta_clear_stats = madwifi_sta_clear_stats,
1330 .commit = madwifi_commit,
1331 .set_wps_beacon_ie = madwifi_set_wps_beacon_ie,
1332 .set_wps_probe_resp_ie = madwifi_set_wps_probe_resp_ie,