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"
64 #include "priv_netlink.h"
65 #include "l2_packet/l2_packet.h"
67 #include "wps_hostapd.h"
68 #include "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 *addr, int reason_code);
90 set80211priv(struct madwifi_driver_data *drv, int op, void *data, int len)
93 int do_inline = len < IFNAMSIZ;
95 /* Certain ioctls must use the non-inlined method */
96 if (op == IEEE80211_IOCTL_SET_APPIEBUF ||
97 op == IEEE80211_IOCTL_FILTERFRAME)
100 memset(&iwr, 0, sizeof(iwr));
101 os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
104 * Argument data fits inline; put it there.
106 memcpy(iwr.u.name, data, len);
109 * Argument data too big for inline transfer; setup a
110 * parameter block instead; the kernel will transfer
111 * the data for the driver.
113 iwr.u.data.pointer = data;
114 iwr.u.data.length = len;
117 if (ioctl(drv->ioctl_sock, op, &iwr) < 0) {
118 int first = IEEE80211_IOCTL_SETPARAM;
119 static const char *opnames[] = {
120 "ioctl[IEEE80211_IOCTL_SETPARAM]",
121 "ioctl[IEEE80211_IOCTL_GETPARAM]",
122 "ioctl[IEEE80211_IOCTL_SETKEY]",
123 "ioctl[IEEE80211_IOCTL_SETWMMPARAMS]",
124 "ioctl[IEEE80211_IOCTL_DELKEY]",
125 "ioctl[IEEE80211_IOCTL_GETWMMPARAMS]",
126 "ioctl[IEEE80211_IOCTL_SETMLME]",
127 "ioctl[IEEE80211_IOCTL_GETCHANINFO]",
128 "ioctl[IEEE80211_IOCTL_SETOPTIE]",
129 "ioctl[IEEE80211_IOCTL_GETOPTIE]",
130 "ioctl[IEEE80211_IOCTL_ADDMAC]",
131 "ioctl[IEEE80211_IOCTL_DELMAC]",
132 "ioctl[IEEE80211_IOCTL_GETCHANLIST]",
133 "ioctl[IEEE80211_IOCTL_SETCHANLIST]",
134 "ioctl[IEEE80211_IOCTL_KICKMAC]",
135 "ioctl[IEEE80211_IOCTL_CHANSWITCH]",
136 "ioctl[IEEE80211_IOCTL_GETMODE]",
137 "ioctl[IEEE80211_IOCTL_SETMODE]",
138 "ioctl[IEEE80211_IOCTL_GET_APPIEBUF]",
139 "ioctl[IEEE80211_IOCTL_SET_APPIEBUF]",
141 "ioctl[IEEE80211_IOCTL_FILTERFRAME]",
143 int idx = op - first;
145 idx < (int) (sizeof(opnames) / sizeof(opnames[0])) &&
147 perror(opnames[idx]);
149 perror("ioctl[unknown???]");
150 wpa_printf(MSG_DEBUG, "Failed ioctl: 0x%x", op);
158 set80211param(struct madwifi_driver_data *drv, int op, int arg)
162 memset(&iwr, 0, sizeof(iwr));
163 os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
165 memcpy(iwr.u.name+sizeof(__u32), &arg, sizeof(arg));
167 if (ioctl(drv->ioctl_sock, IEEE80211_IOCTL_SETPARAM, &iwr) < 0) {
168 perror("ioctl[IEEE80211_IOCTL_SETPARAM]");
169 wpa_printf(MSG_DEBUG, "%s: Failed to set parameter (op %d "
170 "arg %d)", __func__, op, arg);
176 #ifndef CONFIG_NO_STDOUT_DEBUG
178 ether_sprintf(const u8 *addr)
180 static char buf[sizeof(MACSTR)];
183 snprintf(buf, sizeof(buf), MACSTR, MAC2STR(addr));
185 snprintf(buf, sizeof(buf), MACSTR, 0,0,0,0,0,0);
188 #endif /* CONFIG_NO_STDOUT_DEBUG */
191 * Configure WPA parameters.
194 madwifi_configure_wpa(struct madwifi_driver_data *drv)
196 struct hostapd_data *hapd = drv->hapd;
197 struct hostapd_bss_config *conf = hapd->conf;
200 switch (conf->wpa_group) {
201 case WPA_CIPHER_CCMP:
202 v = IEEE80211_CIPHER_AES_CCM;
204 case WPA_CIPHER_TKIP:
205 v = IEEE80211_CIPHER_TKIP;
207 case WPA_CIPHER_WEP104:
208 v = IEEE80211_CIPHER_WEP;
210 case WPA_CIPHER_WEP40:
211 v = IEEE80211_CIPHER_WEP;
213 case WPA_CIPHER_NONE:
214 v = IEEE80211_CIPHER_NONE;
217 wpa_printf(MSG_ERROR, "Unknown group key cipher %u",
221 wpa_printf(MSG_DEBUG, "%s: group key cipher=%d", __func__, v);
222 if (set80211param(drv, IEEE80211_PARAM_MCASTCIPHER, v)) {
223 printf("Unable to set group key cipher to %u\n", v);
226 if (v == IEEE80211_CIPHER_WEP) {
227 /* key length is done only for specific ciphers */
228 v = (conf->wpa_group == WPA_CIPHER_WEP104 ? 13 : 5);
229 if (set80211param(drv, IEEE80211_PARAM_MCASTKEYLEN, v)) {
230 printf("Unable to set group key length to %u\n", v);
236 if (conf->wpa_pairwise & WPA_CIPHER_CCMP)
237 v |= 1<<IEEE80211_CIPHER_AES_CCM;
238 if (conf->wpa_pairwise & WPA_CIPHER_TKIP)
239 v |= 1<<IEEE80211_CIPHER_TKIP;
240 if (conf->wpa_pairwise & WPA_CIPHER_NONE)
241 v |= 1<<IEEE80211_CIPHER_NONE;
242 wpa_printf(MSG_DEBUG, "%s: pairwise key ciphers=0x%x", __func__, v);
243 if (set80211param(drv, IEEE80211_PARAM_UCASTCIPHERS, v)) {
244 printf("Unable to set pairwise key ciphers to 0x%x\n", v);
248 wpa_printf(MSG_DEBUG, "%s: key management algorithms=0x%x",
249 __func__, conf->wpa_key_mgmt);
250 if (set80211param(drv, IEEE80211_PARAM_KEYMGTALGS, conf->wpa_key_mgmt)) {
251 printf("Unable to set key management algorithms to 0x%x\n",
257 if (conf->rsn_preauth)
259 wpa_printf(MSG_DEBUG, "%s: rsn capabilities=0x%x",
260 __func__, conf->rsn_preauth);
261 if (set80211param(drv, IEEE80211_PARAM_RSNCAPS, v)) {
262 printf("Unable to set RSN capabilities to 0x%x\n", v);
266 wpa_printf(MSG_DEBUG, "%s: enable WPA=0x%x", __func__, conf->wpa);
267 if (set80211param(drv, IEEE80211_PARAM_WPA, conf->wpa)) {
268 printf("Unable to set WPA to %u\n", conf->wpa);
276 madwifi_set_iface_flags(void *priv, int dev_up)
278 struct madwifi_driver_data *drv = priv;
281 wpa_printf(MSG_DEBUG, "%s: dev_up=%d", __func__, dev_up);
283 if (drv->ioctl_sock < 0)
286 memset(&ifr, 0, sizeof(ifr));
287 os_strlcpy(ifr.ifr_name, drv->iface, IFNAMSIZ);
289 if (ioctl(drv->ioctl_sock, SIOCGIFFLAGS, &ifr) != 0) {
290 perror("ioctl[SIOCGIFFLAGS]");
295 ifr.ifr_flags |= IFF_UP;
297 ifr.ifr_flags &= ~IFF_UP;
299 if (ioctl(drv->ioctl_sock, SIOCSIFFLAGS, &ifr) != 0) {
300 perror("ioctl[SIOCSIFFLAGS]");
305 memset(&ifr, 0, sizeof(ifr));
306 os_strlcpy(ifr.ifr_name, drv->iface, IFNAMSIZ);
307 ifr.ifr_mtu = HOSTAPD_MTU;
308 if (ioctl(drv->ioctl_sock, SIOCSIFMTU, &ifr) != 0) {
309 perror("ioctl[SIOCSIFMTU]");
310 printf("Setting MTU failed - trying to survive with "
319 madwifi_set_ieee8021x(const char *ifname, void *priv, int enabled)
321 struct madwifi_driver_data *drv = priv;
322 struct hostapd_data *hapd = drv->hapd;
323 struct hostapd_bss_config *conf = hapd->conf;
325 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
328 /* XXX restore state */
329 return set80211param(priv, IEEE80211_PARAM_AUTHMODE,
330 IEEE80211_AUTH_AUTO);
332 if (!conf->wpa && !conf->ieee802_1x) {
333 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_DRIVER,
334 HOSTAPD_LEVEL_WARNING, "No 802.1X or WPA enabled!");
337 if (conf->wpa && madwifi_configure_wpa(drv) != 0) {
338 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_DRIVER,
339 HOSTAPD_LEVEL_WARNING, "Error configuring WPA state!");
342 if (set80211param(priv, IEEE80211_PARAM_AUTHMODE,
343 (conf->wpa ? IEEE80211_AUTH_WPA : IEEE80211_AUTH_8021X))) {
344 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_DRIVER,
345 HOSTAPD_LEVEL_WARNING, "Error enabling WPA/802.1X!");
353 madwifi_set_privacy(const char *ifname, void *priv, int enabled)
355 struct madwifi_driver_data *drv = priv;
357 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
359 return set80211param(drv, IEEE80211_PARAM_PRIVACY, enabled);
363 madwifi_set_sta_authorized(void *priv, const u8 *addr, int authorized)
365 struct madwifi_driver_data *drv = priv;
366 struct ieee80211req_mlme mlme;
369 wpa_printf(MSG_DEBUG, "%s: addr=%s authorized=%d",
370 __func__, ether_sprintf(addr), authorized);
373 mlme.im_op = IEEE80211_MLME_AUTHORIZE;
375 mlme.im_op = IEEE80211_MLME_UNAUTHORIZE;
377 memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
378 ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
380 wpa_printf(MSG_DEBUG, "%s: Failed to %sauthorize STA " MACSTR,
381 __func__, authorized ? "" : "un", MAC2STR(addr));
388 madwifi_sta_set_flags(void *priv, const u8 *addr, int total_flags,
389 int flags_or, int flags_and)
391 /* For now, only support setting Authorized flag */
392 if (flags_or & WLAN_STA_AUTHORIZED)
393 return madwifi_set_sta_authorized(priv, addr, 1);
394 if (!(flags_and & WLAN_STA_AUTHORIZED))
395 return madwifi_set_sta_authorized(priv, addr, 0);
400 madwifi_del_key(void *priv, const u8 *addr, int key_idx)
402 struct madwifi_driver_data *drv = priv;
403 struct ieee80211req_del_key wk;
406 wpa_printf(MSG_DEBUG, "%s: addr=%s key_idx=%d",
407 __func__, ether_sprintf(addr), key_idx);
409 memset(&wk, 0, sizeof(wk));
411 memcpy(wk.idk_macaddr, addr, IEEE80211_ADDR_LEN);
412 wk.idk_keyix = (u8) IEEE80211_KEYIX_NONE;
414 wk.idk_keyix = key_idx;
417 ret = set80211priv(drv, IEEE80211_IOCTL_DELKEY, &wk, sizeof(wk));
419 wpa_printf(MSG_DEBUG, "%s: Failed to delete key (addr %s"
420 " key_idx %d)", __func__, ether_sprintf(addr),
428 madwifi_set_key(const char *ifname, void *priv, const char *alg,
429 const u8 *addr, int key_idx,
430 const u8 *key, size_t key_len, int txkey)
432 struct madwifi_driver_data *drv = priv;
433 struct ieee80211req_key wk;
437 if (strcmp(alg, "none") == 0)
438 return madwifi_del_key(drv, addr, key_idx);
440 wpa_printf(MSG_DEBUG, "%s: alg=%s addr=%s key_idx=%d",
441 __func__, alg, ether_sprintf(addr), key_idx);
443 if (strcmp(alg, "WEP") == 0)
444 cipher = IEEE80211_CIPHER_WEP;
445 else if (strcmp(alg, "TKIP") == 0)
446 cipher = IEEE80211_CIPHER_TKIP;
447 else if (strcmp(alg, "CCMP") == 0)
448 cipher = IEEE80211_CIPHER_AES_CCM;
450 printf("%s: unknown/unsupported algorithm %s\n",
455 if (key_len > sizeof(wk.ik_keydata)) {
456 printf("%s: key length %lu too big\n", __func__,
457 (unsigned long) key_len);
461 memset(&wk, 0, sizeof(wk));
463 wk.ik_flags = IEEE80211_KEY_RECV | IEEE80211_KEY_XMIT;
465 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
466 wk.ik_keyix = key_idx;
467 wk.ik_flags |= IEEE80211_KEY_DEFAULT;
469 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
470 wk.ik_keyix = IEEE80211_KEYIX_NONE;
472 wk.ik_keylen = key_len;
473 memcpy(wk.ik_keydata, key, key_len);
475 ret = set80211priv(drv, IEEE80211_IOCTL_SETKEY, &wk, sizeof(wk));
477 wpa_printf(MSG_DEBUG, "%s: Failed to set key (addr %s"
478 " key_idx %d alg '%s' key_len %lu txkey %d)",
479 __func__, ether_sprintf(wk.ik_macaddr), key_idx,
480 alg, (unsigned long) key_len, txkey);
488 madwifi_get_seqnum(const char *ifname, void *priv, const u8 *addr, int idx,
491 struct madwifi_driver_data *drv = priv;
492 struct ieee80211req_key wk;
494 wpa_printf(MSG_DEBUG, "%s: addr=%s idx=%d",
495 __func__, ether_sprintf(addr), idx);
497 memset(&wk, 0, sizeof(wk));
499 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
501 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
504 if (set80211priv(drv, IEEE80211_IOCTL_GETKEY, &wk, sizeof(wk))) {
505 wpa_printf(MSG_DEBUG, "%s: Failed to get encryption data "
506 "(addr " MACSTR " key_idx %d)",
507 __func__, MAC2STR(wk.ik_macaddr), idx);
511 #ifdef WORDS_BIGENDIAN
514 * wk.ik_keytsc is in host byte order (big endian), need to
515 * swap it to match with the byte order used in WPA.
518 u8 tmp[WPA_KEY_RSC_LEN];
519 memcpy(tmp, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
520 for (i = 0; i < WPA_KEY_RSC_LEN; i++) {
521 seq[i] = tmp[WPA_KEY_RSC_LEN - i - 1];
524 #else /* WORDS_BIGENDIAN */
525 memcpy(seq, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
526 #endif /* WORDS_BIGENDIAN */
532 madwifi_flush(void *priv)
534 u8 allsta[IEEE80211_ADDR_LEN];
535 memset(allsta, 0xff, IEEE80211_ADDR_LEN);
536 return madwifi_sta_deauth(priv, allsta, IEEE80211_REASON_AUTH_LEAVE);
541 madwifi_read_sta_driver_data(void *priv, struct hostap_sta_driver_data *data,
544 struct madwifi_driver_data *drv = priv;
545 struct ieee80211req_sta_stats stats;
547 memset(data, 0, sizeof(*data));
550 * Fetch statistics for station from the system.
552 memset(&stats, 0, sizeof(stats));
553 memcpy(stats.is_u.macaddr, addr, IEEE80211_ADDR_LEN);
554 if (set80211priv(drv, IEEE80211_IOCTL_STA_STATS,
555 &stats, sizeof(stats))) {
556 wpa_printf(MSG_DEBUG, "%s: Failed to fetch STA stats (addr "
557 MACSTR ")", __func__, MAC2STR(addr));
558 if (memcmp(addr, drv->acct_mac, ETH_ALEN) == 0) {
559 memcpy(data, &drv->acct_data, sizeof(*data));
563 printf("Failed to get station stats information element.\n");
567 data->rx_packets = stats.is_stats.ns_rx_data;
568 data->rx_bytes = stats.is_stats.ns_rx_bytes;
569 data->tx_packets = stats.is_stats.ns_tx_data;
570 data->tx_bytes = stats.is_stats.ns_tx_bytes;
576 madwifi_sta_clear_stats(void *priv, const u8 *addr)
578 struct madwifi_driver_data *drv = priv;
579 struct ieee80211req_mlme mlme;
582 wpa_printf(MSG_DEBUG, "%s: addr=%s", __func__, ether_sprintf(addr));
584 mlme.im_op = IEEE80211_MLME_CLEAR_STATS;
585 memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
586 ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme,
589 wpa_printf(MSG_DEBUG, "%s: Failed to clear STA stats (addr "
590 MACSTR ")", __func__, MAC2STR(addr));
598 madwifi_set_opt_ie(const char *ifname, void *priv, const u8 *ie, size_t ie_len)
601 * Do nothing; we setup parameters at startup that define the
602 * contents of the beacon information element.
608 madwifi_sta_deauth(void *priv, const u8 *addr, int reason_code)
610 struct madwifi_driver_data *drv = priv;
611 struct ieee80211req_mlme mlme;
614 wpa_printf(MSG_DEBUG, "%s: addr=%s reason_code=%d",
615 __func__, ether_sprintf(addr), reason_code);
617 mlme.im_op = IEEE80211_MLME_DEAUTH;
618 mlme.im_reason = reason_code;
619 memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
620 ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
622 wpa_printf(MSG_DEBUG, "%s: Failed to deauth STA (addr " MACSTR
624 __func__, MAC2STR(addr), reason_code);
631 madwifi_sta_disassoc(void *priv, const u8 *addr, int reason_code)
633 struct madwifi_driver_data *drv = priv;
634 struct ieee80211req_mlme mlme;
637 wpa_printf(MSG_DEBUG, "%s: addr=%s reason_code=%d",
638 __func__, ether_sprintf(addr), reason_code);
640 mlme.im_op = IEEE80211_MLME_DISASSOC;
641 mlme.im_reason = reason_code;
642 memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
643 ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
645 wpa_printf(MSG_DEBUG, "%s: Failed to disassoc STA (addr "
646 MACSTR " reason %d)",
647 __func__, MAC2STR(addr), reason_code);
654 static void madwifi_raw_receive(void *ctx, const u8 *src_addr, const u8 *buf,
657 struct madwifi_driver_data *drv = ctx;
658 const struct ieee80211_mgmt *mgmt;
663 /* Send Probe Request information to WPS processing */
665 if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req))
667 mgmt = (const struct ieee80211_mgmt *) buf;
669 fc = le_to_host16(mgmt->frame_control);
670 if (WLAN_FC_GET_TYPE(fc) != WLAN_FC_TYPE_MGMT ||
671 WLAN_FC_GET_STYPE(fc) != WLAN_FC_STYPE_PROBE_REQ)
675 ie = mgmt->u.probe_req.variable;
676 ie_len = len - (IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req));
678 hostapd_wps_probe_req_rx(drv->hapd, mgmt->sa, ie, ie_len);
680 #endif /* CONFIG_WPS */
682 static int madwifi_receive_probe_req(struct madwifi_driver_data *drv)
686 struct ieee80211req_set_filter filt;
688 wpa_printf(MSG_DEBUG, "%s Enter", __func__);
689 filt.app_filterype = IEEE80211_FILTER_TYPE_PROBE_REQ;
691 ret = set80211priv(drv, IEEE80211_IOCTL_FILTERFRAME, &filt,
692 sizeof(struct ieee80211req_set_filter));
696 drv->sock_raw = l2_packet_init(drv->iface, NULL, ETH_P_80211_RAW,
697 madwifi_raw_receive, drv, 1);
698 if (drv->sock_raw == NULL)
700 #endif /* CONFIG_WPS */
706 madwifi_set_wps_ie(void *priv, const u8 *ie, size_t len, u32 frametype)
708 struct madwifi_driver_data *drv = priv;
710 struct ieee80211req_getset_appiebuf *beac_ie;
712 wpa_printf(MSG_DEBUG, "%s buflen = %lu", __func__,
713 (unsigned long) len);
715 beac_ie = (struct ieee80211req_getset_appiebuf *) buf;
716 beac_ie->app_frmtype = frametype;
717 beac_ie->app_buflen = len;
718 memcpy(&(beac_ie->app_buf[0]), ie, len);
720 return set80211priv(drv, IEEE80211_IOCTL_SET_APPIEBUF, beac_ie,
721 sizeof(struct ieee80211req_getset_appiebuf) + len);
725 madwifi_set_wps_beacon_ie(const char *ifname, void *priv, const u8 *ie,
728 return madwifi_set_wps_ie(priv, ie, len, IEEE80211_APPIE_FRAME_BEACON);
732 madwifi_set_wps_probe_resp_ie(const char *ifname, void *priv, const u8 *ie,
735 return madwifi_set_wps_ie(priv, ie, len,
736 IEEE80211_APPIE_FRAME_PROBE_RESP);
738 #else /* CONFIG_WPS */
739 #define madwifi_set_wps_beacon_ie NULL
740 #define madwifi_set_wps_probe_resp_ie NULL
741 #endif /* CONFIG_WPS */
744 madwifi_new_sta(struct madwifi_driver_data *drv, u8 addr[IEEE80211_ADDR_LEN])
746 struct hostapd_data *hapd = drv->hapd;
747 struct ieee80211req_wpaie ie;
752 * Fetch negotiated WPA/RSN parameters from the system.
754 memset(&ie, 0, sizeof(ie));
755 memcpy(ie.wpa_macaddr, addr, IEEE80211_ADDR_LEN);
756 if (set80211priv(drv, IEEE80211_IOCTL_GETWPAIE, &ie, sizeof(ie))) {
758 * See ATH_WPS_IE comment in the beginning of the file for a
759 * possible cause for the failure..
761 wpa_printf(MSG_DEBUG, "%s: Failed to get WPA/RSN IE: %s",
762 __func__, strerror(errno));
765 wpa_hexdump(MSG_MSGDUMP, "madwifi req WPA IE",
766 ie.wpa_ie, IEEE80211_MAX_OPT_IE);
767 wpa_hexdump(MSG_MSGDUMP, "madwifi req RSN IE",
768 ie.rsn_ie, IEEE80211_MAX_OPT_IE);
770 /* madwifi seems to return some random data if WPA/RSN IE is not set.
771 * Assume the IE was not included if the IE type is unknown. */
772 if (iebuf[0] != WLAN_EID_VENDOR_SPECIFIC)
774 if (iebuf[1] == 0 && ie.rsn_ie[1] > 0) {
775 /* madwifi-ng svn #1453 added rsn_ie. Use it, if wpa_ie was not
776 * set. This is needed for WPA2. */
778 if (iebuf[0] != WLAN_EID_RSN)
789 res = hostapd_notif_assoc(hapd, addr, iebuf, ielen);
791 if (memcmp(addr, drv->acct_mac, ETH_ALEN) == 0) {
792 /* Cached accounting data is not valid anymore. */
793 memset(drv->acct_mac, 0, ETH_ALEN);
794 memset(&drv->acct_data, 0, sizeof(drv->acct_data));
801 madwifi_wireless_event_wireless_custom(struct madwifi_driver_data *drv,
802 char *custom, char *end)
804 wpa_printf(MSG_DEBUG, "Custom wireless event: '%s'", custom);
806 if (strncmp(custom, "MLME-MICHAELMICFAILURE.indication", 33) == 0) {
809 pos = strstr(custom, "addr=");
811 wpa_printf(MSG_DEBUG,
812 "MLME-MICHAELMICFAILURE.indication "
813 "without sender address ignored");
817 if (hwaddr_aton(pos, addr) == 0) {
818 hostapd_michael_mic_failure(drv->hapd, addr);
820 wpa_printf(MSG_DEBUG,
821 "MLME-MICHAELMICFAILURE.indication "
822 "with invalid MAC address");
824 } else if (strncmp(custom, "STA-TRAFFIC-STAT", 16) == 0) {
828 while ((key = strchr(key, '\n')) != NULL) {
830 value = strchr(key, '=');
834 val = strtoul(value, NULL, 10);
835 if (strcmp(key, "mac") == 0)
836 hwaddr_aton(value, drv->acct_mac);
837 else if (strcmp(key, "rx_packets") == 0)
838 drv->acct_data.rx_packets = val;
839 else if (strcmp(key, "tx_packets") == 0)
840 drv->acct_data.tx_packets = val;
841 else if (strcmp(key, "rx_bytes") == 0)
842 drv->acct_data.rx_bytes = val;
843 else if (strcmp(key, "tx_bytes") == 0)
844 drv->acct_data.tx_bytes = val;
848 } else if (strncmp(custom, "PUSH-BUTTON.indication", 22) == 0) {
849 /* Some atheros kernels send push button as a wireless event */
850 /* PROBLEM! this event is received for ALL BSSs ...
851 * so all are enabled for WPS... ugh.
853 hostapd_wps_button_pushed(drv->hapd);
854 } else if (strncmp(custom, "Manage.prob_req ", 16) == 0) {
856 * Atheros driver uses a hack to pass Probe Request frames as a
857 * binary data in the custom wireless event. The old way (using
858 * packet sniffing) didn't work when bridging.
859 * Format: "Manage.prob_req <frame len>" | zero padding | frame
861 #define WPS_FRAM_TAG_SIZE 30 /* hardcoded in driver */
862 int len = atoi(custom + 16);
863 if (len < 0 || custom + WPS_FRAM_TAG_SIZE + len > end) {
864 wpa_printf(MSG_DEBUG, "Invalid Manage.prob_req event "
868 madwifi_raw_receive(drv, NULL,
869 (u8 *) custom + WPS_FRAM_TAG_SIZE, len);
870 #endif /* CONFIG_WPS */
875 madwifi_wireless_event_wireless(struct madwifi_driver_data *drv,
878 struct iw_event iwe_buf, *iwe = &iwe_buf;
879 char *pos, *end, *custom, *buf;
884 while (pos + IW_EV_LCP_LEN <= end) {
885 /* Event data may be unaligned, so make a local, aligned copy
886 * before processing. */
887 memcpy(&iwe_buf, pos, IW_EV_LCP_LEN);
888 wpa_printf(MSG_MSGDUMP, "Wireless event: cmd=0x%x len=%d",
890 if (iwe->len <= IW_EV_LCP_LEN)
893 custom = pos + IW_EV_POINT_LEN;
894 if (drv->we_version > 18 &&
895 (iwe->cmd == IWEVMICHAELMICFAILURE ||
896 iwe->cmd == IWEVASSOCREQIE ||
897 iwe->cmd == IWEVCUSTOM)) {
898 /* WE-19 removed the pointer from struct iw_point */
899 char *dpos = (char *) &iwe_buf.u.data.length;
900 int dlen = dpos - (char *) &iwe_buf;
901 memcpy(dpos, pos + IW_EV_LCP_LEN,
902 sizeof(struct iw_event) - dlen);
904 memcpy(&iwe_buf, pos, sizeof(struct iw_event));
905 custom += IW_EV_POINT_OFF;
910 hostapd_notif_disassoc(drv->hapd,
911 (u8 *) iwe->u.addr.sa_data);
914 madwifi_new_sta(drv, (u8 *) iwe->u.addr.sa_data);
917 /* Driver hack.. Use IWEVASSOCREQIE to bypass
918 * IWEVCUSTOM size limitations. Need to handle this
919 * just like IWEVCUSTOM.
922 if (custom + iwe->u.data.length > end)
924 buf = malloc(iwe->u.data.length + 1);
927 memcpy(buf, custom, iwe->u.data.length);
928 buf[iwe->u.data.length] = '\0';
929 madwifi_wireless_event_wireless_custom(
930 drv, buf, buf + iwe->u.data.length);
941 madwifi_wireless_event_rtm_newlink(struct madwifi_driver_data *drv,
942 struct nlmsghdr *h, int len)
944 struct ifinfomsg *ifi;
945 int attrlen, nlmsg_len, rta_len;
946 struct rtattr * attr;
948 if (len < (int) sizeof(*ifi))
953 if (ifi->ifi_index != drv->ifindex)
956 nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
958 attrlen = h->nlmsg_len - nlmsg_len;
962 attr = (struct rtattr *) (((char *) ifi) + nlmsg_len);
964 rta_len = RTA_ALIGN(sizeof(struct rtattr));
965 while (RTA_OK(attr, attrlen)) {
966 if (attr->rta_type == IFLA_WIRELESS) {
967 madwifi_wireless_event_wireless(
968 drv, ((char *) attr) + rta_len,
969 attr->rta_len - rta_len);
971 attr = RTA_NEXT(attr, attrlen);
977 madwifi_wireless_event_receive(int sock, void *eloop_ctx, void *sock_ctx)
981 struct sockaddr_nl from;
984 struct madwifi_driver_data *drv = eloop_ctx;
986 fromlen = sizeof(from);
987 left = recvfrom(sock, buf, sizeof(buf), MSG_DONTWAIT,
988 (struct sockaddr *) &from, &fromlen);
990 if (errno != EINTR && errno != EAGAIN)
991 perror("recvfrom(netlink)");
995 h = (struct nlmsghdr *) buf;
996 while (left >= (int) sizeof(*h)) {
1000 plen = len - sizeof(*h);
1001 if (len > left || plen < 0) {
1002 printf("Malformed netlink message: "
1003 "len=%d left=%d plen=%d\n",
1008 switch (h->nlmsg_type) {
1010 madwifi_wireless_event_rtm_newlink(drv, h, plen);
1014 len = NLMSG_ALIGN(len);
1016 h = (struct nlmsghdr *) ((char *) h + len);
1020 printf("%d extra bytes in the end of netlink message\n", left);
1026 madwifi_get_we_version(struct madwifi_driver_data *drv)
1028 struct iw_range *range;
1033 drv->we_version = 0;
1036 * Use larger buffer than struct iw_range in order to allow the
1037 * structure to grow in the future.
1039 buflen = sizeof(struct iw_range) + 500;
1040 range = os_zalloc(buflen);
1044 memset(&iwr, 0, sizeof(iwr));
1045 os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1046 iwr.u.data.pointer = (caddr_t) range;
1047 iwr.u.data.length = buflen;
1049 minlen = ((char *) &range->enc_capa) - (char *) range +
1050 sizeof(range->enc_capa);
1052 if (ioctl(drv->ioctl_sock, SIOCGIWRANGE, &iwr) < 0) {
1053 perror("ioctl[SIOCGIWRANGE]");
1056 } else if (iwr.u.data.length >= minlen &&
1057 range->we_version_compiled >= 18) {
1058 wpa_printf(MSG_DEBUG, "SIOCGIWRANGE: WE(compiled)=%d "
1059 "WE(source)=%d enc_capa=0x%x",
1060 range->we_version_compiled,
1061 range->we_version_source,
1063 drv->we_version = range->we_version_compiled;
1072 madwifi_wireless_event_init(void *priv)
1074 struct madwifi_driver_data *drv = priv;
1076 struct sockaddr_nl local;
1078 madwifi_get_we_version(drv);
1080 drv->wext_sock = -1;
1082 s = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
1084 perror("socket(PF_NETLINK,SOCK_RAW,NETLINK_ROUTE)");
1088 memset(&local, 0, sizeof(local));
1089 local.nl_family = AF_NETLINK;
1090 local.nl_groups = RTMGRP_LINK;
1091 if (bind(s, (struct sockaddr *) &local, sizeof(local)) < 0) {
1092 perror("bind(netlink)");
1097 eloop_register_read_sock(s, madwifi_wireless_event_receive, drv, NULL);
1105 madwifi_wireless_event_deinit(void *priv)
1107 struct madwifi_driver_data *drv = priv;
1110 if (drv->wext_sock < 0)
1112 eloop_unregister_read_sock(drv->wext_sock);
1113 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);
1232 if (drv->sock_xmit != NULL)
1233 l2_packet_deinit(drv->sock_xmit);
1234 if (drv->ioctl_sock >= 0)
1235 close(drv->ioctl_sock);
1243 madwifi_deinit(void *priv)
1245 struct madwifi_driver_data *drv = priv;
1247 (void) madwifi_set_iface_flags(drv, 0);
1248 if (drv->ioctl_sock >= 0)
1249 close(drv->ioctl_sock);
1250 if (drv->sock_recv != NULL && drv->sock_recv != drv->sock_xmit)
1251 l2_packet_deinit(drv->sock_recv);
1252 if (drv->sock_xmit != NULL)
1253 l2_packet_deinit(drv->sock_xmit);
1255 l2_packet_deinit(drv->sock_raw);
1260 madwifi_set_ssid(const char *ifname, void *priv, const u8 *buf, int len)
1262 struct madwifi_driver_data *drv = priv;
1265 memset(&iwr, 0, sizeof(iwr));
1266 os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1267 iwr.u.essid.flags = 1; /* SSID active */
1268 iwr.u.essid.pointer = (caddr_t) buf;
1269 iwr.u.essid.length = len + 1;
1271 if (ioctl(drv->ioctl_sock, SIOCSIWESSID, &iwr) < 0) {
1272 perror("ioctl[SIOCSIWESSID]");
1273 printf("len=%d\n", len);
1280 madwifi_get_ssid(const char *ifname, void *priv, u8 *buf, int len)
1282 struct madwifi_driver_data *drv = priv;
1286 memset(&iwr, 0, sizeof(iwr));
1287 os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1288 iwr.u.essid.pointer = (caddr_t) buf;
1289 iwr.u.essid.length = len;
1291 if (ioctl(drv->ioctl_sock, SIOCGIWESSID, &iwr) < 0) {
1292 perror("ioctl[SIOCGIWESSID]");
1295 ret = iwr.u.essid.length;
1301 madwifi_set_countermeasures(void *priv, int enabled)
1303 struct madwifi_driver_data *drv = priv;
1304 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
1305 return set80211param(drv, IEEE80211_PARAM_COUNTERMEASURES, enabled);
1309 madwifi_commit(void *priv)
1311 return madwifi_set_iface_flags(priv, 1);
1314 const struct wpa_driver_ops wpa_driver_atheros_ops = {
1316 .init = madwifi_init,
1317 .deinit = madwifi_deinit,
1318 .set_ieee8021x = madwifi_set_ieee8021x,
1319 .set_privacy = madwifi_set_privacy,
1320 .set_encryption = madwifi_set_key,
1321 .get_seqnum = madwifi_get_seqnum,
1322 .flush = madwifi_flush,
1323 .set_generic_elem = madwifi_set_opt_ie,
1324 .wireless_event_init = madwifi_wireless_event_init,
1325 .wireless_event_deinit = madwifi_wireless_event_deinit,
1326 .sta_set_flags = madwifi_sta_set_flags,
1327 .read_sta_data = madwifi_read_sta_driver_data,
1328 .send_eapol = madwifi_send_eapol,
1329 .sta_disassoc = madwifi_sta_disassoc,
1330 .sta_deauth = madwifi_sta_deauth,
1331 .set_ssid = madwifi_set_ssid,
1332 .get_ssid = madwifi_get_ssid,
1333 .set_countermeasures = madwifi_set_countermeasures,
1334 .sta_clear_stats = madwifi_sta_clear_stats,
1335 .commit = madwifi_commit,
1336 .set_wps_beacon_ie = madwifi_set_wps_beacon_ie,
1337 .set_wps_probe_resp_ie = madwifi_set_wps_probe_resp_ie,