2 * WPA Supplicant - driver interaction with generic Linux Wireless Extensions
3 * Copyright (c) 2003-2007, Jouni Malinen <j@w1.fi>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
9 * Alternatively, this software may be distributed under the terms of BSD
12 * See README and COPYING for more details.
14 * This file implements a driver interface for the Linux Wireless Extensions.
15 * When used with WE-18 or newer, this interface can be used as-is with number
16 * of drivers. In addition to this, some of the common functions in this file
17 * can be used by other driver interface implementations that use generic WE
18 * ioctls, but require private ioctls for some of the functionality.
22 #include <sys/ioctl.h>
23 #include <net/if_arp.h>
26 #include "wireless_copy.h"
29 #include "l2_packet.h"
31 #include "wpa_supplicant.h"
32 #include "priv_netlink.h"
33 #include "driver_wext.h"
36 #include "wpa_supplicant_i.h"
37 #include "config_ssid.h"
39 #ifdef CONFIG_CLIENT_MLME
40 #include <netpacket/packet.h>
41 #include <hostapd_ioctl.h>
42 #include <ieee80211_common.h>
43 /* from net/mac80211.h */
45 MODE_IEEE80211A = 0 /* IEEE 802.11a */,
46 MODE_IEEE80211B = 1 /* IEEE 802.11b only */,
47 MODE_ATHEROS_TURBO = 2 /* Atheros Turbo mode (2x.11a at 5 GHz) */,
48 MODE_IEEE80211G = 3 /* IEEE 802.11g (and 802.11b compatibility) */,
49 MODE_ATHEROS_TURBOG = 4 /* Atheros Turbo mode (2x.11g at 2.4 GHz) */,
50 NUM_IEEE80211_MODES = 5
56 #define ETH_P_ALL 0x0003
58 #endif /* CONFIG_CLIENT_MLME */
61 struct wpa_driver_wext_data {
66 char ifname[IFNAMSIZ + 1];
71 size_t assoc_req_ies_len;
73 size_t assoc_resp_ies_len;
74 struct wpa_driver_capa capa;
76 int we_version_compiled;
78 /* for set_auth_alg fallback */
80 int auth_alg_fallback;
84 char mlmedev[IFNAMSIZ + 1];
86 int scan_complete_events;
90 static int wpa_driver_wext_flush_pmkid(void *priv);
91 static int wpa_driver_wext_get_range(void *priv);
92 static void wpa_driver_wext_finish_drv_init(struct wpa_driver_wext_data *drv);
95 static int wpa_driver_wext_send_oper_ifla(struct wpa_driver_wext_data *drv,
96 int linkmode, int operstate)
100 struct ifinfomsg ifinfo;
107 req.hdr.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
108 req.hdr.nlmsg_type = RTM_SETLINK;
109 req.hdr.nlmsg_flags = NLM_F_REQUEST;
110 req.hdr.nlmsg_seq = ++nl_seq;
111 req.hdr.nlmsg_pid = 0;
113 req.ifinfo.ifi_family = AF_UNSPEC;
114 req.ifinfo.ifi_type = 0;
115 req.ifinfo.ifi_index = drv->ifindex;
116 req.ifinfo.ifi_flags = 0;
117 req.ifinfo.ifi_change = 0;
119 if (linkmode != -1) {
120 rta = (struct rtattr *)
121 ((char *) &req + NLMSG_ALIGN(req.hdr.nlmsg_len));
122 rta->rta_type = IFLA_LINKMODE;
123 rta->rta_len = RTA_LENGTH(sizeof(char));
124 *((char *) RTA_DATA(rta)) = linkmode;
125 req.hdr.nlmsg_len = NLMSG_ALIGN(req.hdr.nlmsg_len) +
126 RTA_LENGTH(sizeof(char));
128 if (operstate != -1) {
129 rta = (struct rtattr *)
130 ((char *) &req + NLMSG_ALIGN(req.hdr.nlmsg_len));
131 rta->rta_type = IFLA_OPERSTATE;
132 rta->rta_len = RTA_LENGTH(sizeof(char));
133 *((char *) RTA_DATA(rta)) = operstate;
134 req.hdr.nlmsg_len = NLMSG_ALIGN(req.hdr.nlmsg_len) +
135 RTA_LENGTH(sizeof(char));
138 wpa_printf(MSG_DEBUG, "WEXT: Operstate: linkmode=%d, operstate=%d",
139 linkmode, operstate);
141 ret = send(drv->event_sock, &req, req.hdr.nlmsg_len, 0);
143 wpa_printf(MSG_DEBUG, "WEXT: Sending operstate IFLA failed: "
144 "%s (assume operstate is not supported)",
148 return ret < 0 ? -1 : 0;
152 static int wpa_driver_wext_set_auth_param(struct wpa_driver_wext_data *drv,
158 os_memset(&iwr, 0, sizeof(iwr));
159 os_strncpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
160 iwr.u.param.flags = idx & IW_AUTH_INDEX;
161 iwr.u.param.value = value;
163 if (ioctl(drv->ioctl_sock, SIOCSIWAUTH, &iwr) < 0) {
164 if (errno != EOPNOTSUPP) {
165 wpa_printf(MSG_DEBUG, "WEXT: SIOCSIWAUTH(param %d "
166 "value 0x%x) failed: %s)",
167 idx, value, strerror(errno));
169 ret = errno == EOPNOTSUPP ? -2 : -1;
177 * wpa_driver_wext_get_bssid - Get BSSID, SIOCGIWAP
178 * @priv: Pointer to private wext data from wpa_driver_wext_init()
179 * @bssid: Buffer for BSSID
180 * Returns: 0 on success, -1 on failure
182 int wpa_driver_wext_get_bssid(void *priv, u8 *bssid)
184 struct wpa_driver_wext_data *drv = priv;
188 os_memset(&iwr, 0, sizeof(iwr));
189 os_strncpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
191 if (ioctl(drv->ioctl_sock, SIOCGIWAP, &iwr) < 0) {
192 perror("ioctl[SIOCGIWAP]");
195 os_memcpy(bssid, iwr.u.ap_addr.sa_data, ETH_ALEN);
202 * wpa_driver_wext_set_bssid - Set BSSID, SIOCSIWAP
203 * @priv: Pointer to private wext data from wpa_driver_wext_init()
205 * Returns: 0 on success, -1 on failure
207 int wpa_driver_wext_set_bssid(void *priv, const u8 *bssid)
209 struct wpa_driver_wext_data *drv = priv;
213 os_memset(&iwr, 0, sizeof(iwr));
214 os_strncpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
215 iwr.u.ap_addr.sa_family = ARPHRD_ETHER;
217 os_memcpy(iwr.u.ap_addr.sa_data, bssid, ETH_ALEN);
219 os_memset(iwr.u.ap_addr.sa_data, 0, ETH_ALEN);
221 if (ioctl(drv->ioctl_sock, SIOCSIWAP, &iwr) < 0) {
222 perror("ioctl[SIOCSIWAP]");
231 * wpa_driver_wext_get_ssid - Get SSID, SIOCGIWESSID
232 * @priv: Pointer to private wext data from wpa_driver_wext_init()
233 * @ssid: Buffer for the SSID; must be at least 32 bytes long
234 * Returns: SSID length on success, -1 on failure
236 int wpa_driver_wext_get_ssid(void *priv, u8 *ssid)
238 struct wpa_driver_wext_data *drv = priv;
242 os_memset(&iwr, 0, sizeof(iwr));
243 os_strncpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
244 iwr.u.essid.pointer = (caddr_t) ssid;
245 iwr.u.essid.length = 32;
247 if (ioctl(drv->ioctl_sock, SIOCGIWESSID, &iwr) < 0) {
248 perror("ioctl[SIOCGIWESSID]");
251 ret = iwr.u.essid.length;
254 /* Some drivers include nul termination in the SSID, so let's
255 * remove it here before further processing. WE-21 changes this
256 * to explicitly require the length _not_ to include nul
258 if (ret > 0 && ssid[ret - 1] == '\0' &&
259 drv->we_version_compiled < 21)
268 * wpa_driver_wext_set_ssid - Set SSID, SIOCSIWESSID
269 * @priv: Pointer to private wext data from wpa_driver_wext_init()
271 * @ssid_len: Length of SSID (0..32)
272 * Returns: 0 on success, -1 on failure
274 int wpa_driver_wext_set_ssid(void *priv, const u8 *ssid, size_t ssid_len)
276 struct wpa_driver_wext_data *drv = priv;
284 os_memset(&iwr, 0, sizeof(iwr));
285 os_strncpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
286 /* flags: 1 = ESSID is active, 0 = not (promiscuous) */
287 iwr.u.essid.flags = (ssid_len != 0);
288 os_memset(buf, 0, sizeof(buf));
289 os_memcpy(buf, ssid, ssid_len);
290 iwr.u.essid.pointer = (caddr_t) buf;
291 if (drv->we_version_compiled < 21) {
292 /* For historic reasons, set SSID length to include one extra
293 * character, C string nul termination, even though SSID is
294 * really an octet string that should not be presented as a C
295 * string. Some Linux drivers decrement the length by one and
296 * can thus end up missing the last octet of the SSID if the
297 * length is not incremented here. WE-21 changes this to
298 * explicitly require the length _not_ to include nul
303 iwr.u.essid.length = ssid_len;
305 if (ioctl(drv->ioctl_sock, SIOCSIWESSID, &iwr) < 0) {
306 perror("ioctl[SIOCSIWESSID]");
315 * wpa_driver_wext_set_freq - Set frequency/channel, SIOCSIWFREQ
316 * @priv: Pointer to private wext data from wpa_driver_wext_init()
317 * @freq: Frequency in MHz
318 * Returns: 0 on success, -1 on failure
320 int wpa_driver_wext_set_freq(void *priv, int freq)
322 struct wpa_driver_wext_data *drv = priv;
326 os_memset(&iwr, 0, sizeof(iwr));
327 os_strncpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
328 iwr.u.freq.m = freq * 100000;
331 if (ioctl(drv->ioctl_sock, SIOCSIWFREQ, &iwr) < 0) {
332 perror("ioctl[SIOCSIWFREQ]");
341 wpa_driver_wext_event_wireless_custom(void *ctx, char *custom)
343 union wpa_event_data data;
345 wpa_printf(MSG_MSGDUMP, "WEXT: Custom wireless event: '%s'",
348 os_memset(&data, 0, sizeof(data));
350 if (os_strncmp(custom, "MLME-MICHAELMICFAILURE.indication", 33) == 0) {
351 data.michael_mic_failure.unicast =
352 os_strstr(custom, " unicast ") != NULL;
353 /* TODO: parse parameters(?) */
354 wpa_supplicant_event(ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
355 } else if (os_strncmp(custom, "ASSOCINFO(ReqIEs=", 17) == 0) {
361 bytes = strspn(spos, "0123456789abcdefABCDEF");
362 if (!bytes || (bytes & 1))
366 data.assoc_info.req_ies = os_malloc(bytes);
367 if (data.assoc_info.req_ies == NULL)
370 data.assoc_info.req_ies_len = bytes;
371 hexstr2bin(spos, data.assoc_info.req_ies, bytes);
375 data.assoc_info.resp_ies = NULL;
376 data.assoc_info.resp_ies_len = 0;
378 if (os_strncmp(spos, " RespIEs=", 9) == 0) {
381 bytes = strspn(spos, "0123456789abcdefABCDEF");
382 if (!bytes || (bytes & 1))
386 data.assoc_info.resp_ies = os_malloc(bytes);
387 if (data.assoc_info.resp_ies == NULL)
390 data.assoc_info.resp_ies_len = bytes;
391 hexstr2bin(spos, data.assoc_info.resp_ies, bytes);
394 wpa_supplicant_event(ctx, EVENT_ASSOCINFO, &data);
397 os_free(data.assoc_info.resp_ies);
398 os_free(data.assoc_info.req_ies);
399 #ifdef CONFIG_PEERKEY
400 } else if (os_strncmp(custom, "STKSTART.request=", 17) == 0) {
401 if (hwaddr_aton(custom + 17, data.stkstart.peer)) {
402 wpa_printf(MSG_DEBUG, "WEXT: unrecognized "
403 "STKSTART.request '%s'", custom + 17);
406 wpa_supplicant_event(ctx, EVENT_STKSTART, &data);
407 #endif /* CONFIG_PEERKEY */
409 } else if (os_strncmp(custom, "STOP", 4) == 0) {
410 wpa_msg(ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "STOPPED");
411 } else if (os_strncmp(custom, "START", 5) == 0) {
412 wpa_msg(ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "STARTED");
418 static int wpa_driver_wext_event_wireless_michaelmicfailure(
419 void *ctx, const char *ev, size_t len)
421 const struct iw_michaelmicfailure *mic;
422 union wpa_event_data data;
424 if (len < sizeof(*mic))
427 mic = (const struct iw_michaelmicfailure *) ev;
429 wpa_printf(MSG_DEBUG, "Michael MIC failure wireless event: "
430 "flags=0x%x src_addr=" MACSTR, mic->flags,
431 MAC2STR(mic->src_addr.sa_data));
433 os_memset(&data, 0, sizeof(data));
434 data.michael_mic_failure.unicast = !(mic->flags & IW_MICFAILURE_GROUP);
435 wpa_supplicant_event(ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
441 static int wpa_driver_wext_event_wireless_pmkidcand(
442 struct wpa_driver_wext_data *drv, const char *ev, size_t len)
444 const struct iw_pmkid_cand *cand;
445 union wpa_event_data data;
448 if (len < sizeof(*cand))
451 cand = (const struct iw_pmkid_cand *) ev;
452 addr = (const u8 *) cand->bssid.sa_data;
454 wpa_printf(MSG_DEBUG, "PMKID candidate wireless event: "
455 "flags=0x%x index=%d bssid=" MACSTR, cand->flags,
456 cand->index, MAC2STR(addr));
458 os_memset(&data, 0, sizeof(data));
459 os_memcpy(data.pmkid_candidate.bssid, addr, ETH_ALEN);
460 data.pmkid_candidate.index = cand->index;
461 data.pmkid_candidate.preauth = cand->flags & IW_PMKID_CAND_PREAUTH;
462 wpa_supplicant_event(drv->ctx, EVENT_PMKID_CANDIDATE, &data);
468 static int wpa_driver_wext_event_wireless_assocreqie(
469 struct wpa_driver_wext_data *drv, const char *ev, int len)
474 wpa_hexdump(MSG_DEBUG, "AssocReq IE wireless event", (const u8 *) ev,
476 os_free(drv->assoc_req_ies);
477 drv->assoc_req_ies = os_malloc(len);
478 if (drv->assoc_req_ies == NULL) {
479 drv->assoc_req_ies_len = 0;
482 os_memcpy(drv->assoc_req_ies, ev, len);
483 drv->assoc_req_ies_len = len;
489 static int wpa_driver_wext_event_wireless_assocrespie(
490 struct wpa_driver_wext_data *drv, const char *ev, int len)
495 wpa_hexdump(MSG_DEBUG, "AssocResp IE wireless event", (const u8 *) ev,
497 os_free(drv->assoc_resp_ies);
498 drv->assoc_resp_ies = os_malloc(len);
499 if (drv->assoc_resp_ies == NULL) {
500 drv->assoc_resp_ies_len = 0;
503 os_memcpy(drv->assoc_resp_ies, ev, len);
504 drv->assoc_resp_ies_len = len;
510 static void wpa_driver_wext_event_assoc_ies(struct wpa_driver_wext_data *drv)
512 union wpa_event_data data;
514 if (drv->assoc_req_ies == NULL && drv->assoc_resp_ies == NULL)
517 os_memset(&data, 0, sizeof(data));
518 if (drv->assoc_req_ies) {
519 data.assoc_info.req_ies = drv->assoc_req_ies;
520 drv->assoc_req_ies = NULL;
521 data.assoc_info.req_ies_len = drv->assoc_req_ies_len;
523 if (drv->assoc_resp_ies) {
524 data.assoc_info.resp_ies = drv->assoc_resp_ies;
525 drv->assoc_resp_ies = NULL;
526 data.assoc_info.resp_ies_len = drv->assoc_resp_ies_len;
529 wpa_supplicant_event(drv->ctx, EVENT_ASSOCINFO, &data);
531 os_free(data.assoc_info.req_ies);
532 os_free(data.assoc_info.resp_ies);
536 static void wpa_driver_wext_event_wireless(struct wpa_driver_wext_data *drv,
537 void *ctx, char *data, int len)
539 struct iw_event iwe_buf, *iwe = &iwe_buf;
540 char *pos, *end, *custom, *buf;
545 while (pos + IW_EV_LCP_LEN <= end) {
546 /* Event data may be unaligned, so make a local, aligned copy
547 * before processing. */
548 os_memcpy(&iwe_buf, pos, IW_EV_LCP_LEN);
549 wpa_printf(MSG_DEBUG, "Wireless event: cmd=0x%x len=%d",
551 if (iwe->len <= IW_EV_LCP_LEN)
554 custom = pos + IW_EV_POINT_LEN;
555 if (drv->we_version_compiled > 18 &&
556 (iwe->cmd == IWEVMICHAELMICFAILURE ||
557 iwe->cmd == IWEVCUSTOM ||
558 iwe->cmd == IWEVASSOCREQIE ||
559 iwe->cmd == IWEVASSOCRESPIE ||
560 iwe->cmd == IWEVPMKIDCAND)) {
561 /* WE-19 removed the pointer from struct iw_point */
562 char *dpos = (char *) &iwe_buf.u.data.length;
563 int dlen = dpos - (char *) &iwe_buf;
564 os_memcpy(dpos, pos + IW_EV_LCP_LEN,
565 sizeof(struct iw_event) - dlen);
567 os_memcpy(&iwe_buf, pos, sizeof(struct iw_event));
568 custom += IW_EV_POINT_OFF;
573 wpa_printf(MSG_DEBUG, "Wireless event: new AP: "
575 MAC2STR((u8 *) iwe->u.ap_addr.sa_data));
576 if (os_memcmp(iwe->u.ap_addr.sa_data,
577 "\x00\x00\x00\x00\x00\x00", ETH_ALEN) ==
579 os_memcmp(iwe->u.ap_addr.sa_data,
580 "\x44\x44\x44\x44\x44\x44", ETH_ALEN) ==
582 os_free(drv->assoc_req_ies);
583 drv->assoc_req_ies = NULL;
584 os_free(drv->assoc_resp_ies);
585 drv->assoc_resp_ies = NULL;
586 wpa_supplicant_event(ctx, EVENT_DISASSOC,
590 wpa_driver_wext_event_assoc_ies(drv);
591 wpa_supplicant_event(ctx, EVENT_ASSOC, NULL);
594 case IWEVMICHAELMICFAILURE:
595 if (custom + iwe->u.data.length > end) {
596 wpa_printf(MSG_DEBUG, "WEXT: Invalid "
597 "IWEVMICHAELMICFAILURE length");
600 wpa_driver_wext_event_wireless_michaelmicfailure(
601 ctx, custom, iwe->u.data.length);
604 if (custom + iwe->u.data.length > end) {
605 wpa_printf(MSG_DEBUG, "WEXT: Invalid "
606 "IWEVCUSTOM length");
609 buf = os_malloc(iwe->u.data.length + 1);
612 os_memcpy(buf, custom, iwe->u.data.length);
613 buf[iwe->u.data.length] = '\0';
614 wpa_driver_wext_event_wireless_custom(ctx, buf);
618 drv->scan_complete_events = 1;
619 eloop_cancel_timeout(wpa_driver_wext_scan_timeout,
621 wpa_supplicant_event(ctx, EVENT_SCAN_RESULTS, NULL);
624 if (custom + iwe->u.data.length > end) {
625 wpa_printf(MSG_DEBUG, "WEXT: Invalid "
626 "IWEVASSOCREQIE length");
629 wpa_driver_wext_event_wireless_assocreqie(
630 drv, custom, iwe->u.data.length);
632 case IWEVASSOCRESPIE:
633 if (custom + iwe->u.data.length > end) {
634 wpa_printf(MSG_DEBUG, "WEXT: Invalid "
635 "IWEVASSOCRESPIE length");
638 wpa_driver_wext_event_wireless_assocrespie(
639 drv, custom, iwe->u.data.length);
642 if (custom + iwe->u.data.length > end) {
643 wpa_printf(MSG_DEBUG, "WEXT: Invalid "
644 "IWEVPMKIDCAND length");
647 wpa_driver_wext_event_wireless_pmkidcand(
648 drv, custom, iwe->u.data.length);
657 static void wpa_driver_wext_event_link(struct wpa_driver_wext_data *drv,
658 void *ctx, char *buf, size_t len,
661 union wpa_event_data event;
663 os_memset(&event, 0, sizeof(event));
664 if (len > sizeof(event.interface_status.ifname))
665 len = sizeof(event.interface_status.ifname) - 1;
666 os_memcpy(event.interface_status.ifname, buf, len);
667 event.interface_status.ievent = del ? EVENT_INTERFACE_REMOVED :
668 EVENT_INTERFACE_ADDED;
670 wpa_printf(MSG_DEBUG, "RTM_%sLINK, IFLA_IFNAME: Interface '%s' %s",
672 event.interface_status.ifname,
673 del ? "removed" : "added");
675 if (os_strcmp(drv->ifname, event.interface_status.ifname) == 0) {
682 wpa_supplicant_event(ctx, EVENT_INTERFACE_STATUS, &event);
686 static int wpa_driver_wext_own_ifname(struct wpa_driver_wext_data *drv,
689 struct ifinfomsg *ifi;
690 int attrlen, nlmsg_len, rta_len;
695 nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
697 attrlen = h->nlmsg_len - nlmsg_len;
701 attr = (struct rtattr *) (((char *) ifi) + nlmsg_len);
703 rta_len = RTA_ALIGN(sizeof(struct rtattr));
704 while (RTA_OK(attr, attrlen)) {
705 if (attr->rta_type == IFLA_IFNAME) {
706 if (os_strcmp(((char *) attr) + rta_len, drv->ifname)
712 attr = RTA_NEXT(attr, attrlen);
719 static int wpa_driver_wext_own_ifindex(struct wpa_driver_wext_data *drv,
720 int ifindex, struct nlmsghdr *h)
722 if (drv->ifindex == ifindex || drv->ifindex2 == ifindex)
725 if (drv->if_removed && wpa_driver_wext_own_ifname(drv, h)) {
726 drv->ifindex = if_nametoindex(drv->ifname);
727 wpa_printf(MSG_DEBUG, "WEXT: Update ifindex for a removed "
729 wpa_driver_wext_finish_drv_init(drv);
737 static void wpa_driver_wext_event_rtm_newlink(struct wpa_driver_wext_data *drv,
738 void *ctx, struct nlmsghdr *h,
741 struct ifinfomsg *ifi;
742 int attrlen, nlmsg_len, rta_len;
743 struct rtattr * attr;
745 if (len < sizeof(*ifi))
750 if (!wpa_driver_wext_own_ifindex(drv, ifi->ifi_index, h)) {
751 wpa_printf(MSG_DEBUG, "Ignore event for foreign ifindex %d",
756 wpa_printf(MSG_DEBUG, "RTM_NEWLINK: operstate=%d ifi_flags=0x%x "
758 drv->operstate, ifi->ifi_flags,
759 (ifi->ifi_flags & IFF_UP) ? "[UP]" : "",
760 (ifi->ifi_flags & IFF_RUNNING) ? "[RUNNING]" : "",
761 (ifi->ifi_flags & IFF_LOWER_UP) ? "[LOWER_UP]" : "",
762 (ifi->ifi_flags & IFF_DORMANT) ? "[DORMANT]" : "");
764 * Some drivers send the association event before the operup event--in
765 * this case, lifting operstate in wpa_driver_wext_set_operstate()
766 * fails. This will hit us when wpa_supplicant does not need to do
767 * IEEE 802.1X authentication
769 if (drv->operstate == 1 &&
770 (ifi->ifi_flags & (IFF_LOWER_UP | IFF_DORMANT)) == IFF_LOWER_UP &&
771 !(ifi->ifi_flags & IFF_RUNNING))
772 wpa_driver_wext_send_oper_ifla(drv, -1, IF_OPER_UP);
774 nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
776 attrlen = h->nlmsg_len - nlmsg_len;
780 attr = (struct rtattr *) (((char *) ifi) + nlmsg_len);
782 rta_len = RTA_ALIGN(sizeof(struct rtattr));
783 while (RTA_OK(attr, attrlen)) {
784 if (attr->rta_type == IFLA_WIRELESS) {
785 wpa_driver_wext_event_wireless(
786 drv, ctx, ((char *) attr) + rta_len,
787 attr->rta_len - rta_len);
788 } else if (attr->rta_type == IFLA_IFNAME) {
789 wpa_driver_wext_event_link(drv, ctx,
790 ((char *) attr) + rta_len,
791 attr->rta_len - rta_len, 0);
793 attr = RTA_NEXT(attr, attrlen);
798 static void wpa_driver_wext_event_rtm_dellink(struct wpa_driver_wext_data *drv,
799 void *ctx, struct nlmsghdr *h,
802 struct ifinfomsg *ifi;
803 int attrlen, nlmsg_len, rta_len;
804 struct rtattr * attr;
806 if (len < sizeof(*ifi))
811 nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
813 attrlen = h->nlmsg_len - nlmsg_len;
817 attr = (struct rtattr *) (((char *) ifi) + nlmsg_len);
819 rta_len = RTA_ALIGN(sizeof(struct rtattr));
820 while (RTA_OK(attr, attrlen)) {
821 if (attr->rta_type == IFLA_IFNAME) {
822 wpa_driver_wext_event_link(drv, ctx,
823 ((char *) attr) + rta_len,
824 attr->rta_len - rta_len, 1);
826 attr = RTA_NEXT(attr, attrlen);
831 static void wpa_driver_wext_event_receive(int sock, void *eloop_ctx,
836 struct sockaddr_nl from;
842 fromlen = sizeof(from);
843 left = recvfrom(sock, buf, sizeof(buf), MSG_DONTWAIT,
844 (struct sockaddr *) &from, &fromlen);
846 if (errno != EINTR && errno != EAGAIN)
847 perror("recvfrom(netlink)");
851 h = (struct nlmsghdr *) buf;
852 while (left >= (int) sizeof(*h)) {
856 plen = len - sizeof(*h);
857 if (len > left || plen < 0) {
858 wpa_printf(MSG_DEBUG, "Malformed netlink message: "
859 "len=%d left=%d plen=%d",
864 switch (h->nlmsg_type) {
866 wpa_driver_wext_event_rtm_newlink(eloop_ctx, sock_ctx,
870 wpa_driver_wext_event_rtm_dellink(eloop_ctx, sock_ctx,
875 len = NLMSG_ALIGN(len);
877 h = (struct nlmsghdr *) ((char *) h + len);
881 wpa_printf(MSG_DEBUG, "%d extra bytes in the end of netlink "
885 if (--max_events > 0) {
887 * Try to receive all events in one eloop call in order to
888 * limit race condition on cases where AssocInfo event, Assoc
889 * event, and EAPOL frames are received more or less at the
890 * same time. We want to process the event messages first
891 * before starting EAPOL processing.
898 static int wpa_driver_wext_get_ifflags_ifname(struct wpa_driver_wext_data *drv,
899 const char *ifname, int *flags)
903 os_memset(&ifr, 0, sizeof(ifr));
904 os_strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
905 if (ioctl(drv->ioctl_sock, SIOCGIFFLAGS, (caddr_t) &ifr) < 0) {
906 perror("ioctl[SIOCGIFFLAGS]");
909 *flags = ifr.ifr_flags & 0xffff;
915 * wpa_driver_wext_get_ifflags - Get interface flags (SIOCGIFFLAGS)
916 * @drv: driver_wext private data
917 * @flags: Pointer to returned flags value
918 * Returns: 0 on success, -1 on failure
920 int wpa_driver_wext_get_ifflags(struct wpa_driver_wext_data *drv, int *flags)
922 return wpa_driver_wext_get_ifflags_ifname(drv, drv->ifname, flags);
926 static int wpa_driver_wext_set_ifflags_ifname(struct wpa_driver_wext_data *drv,
927 const char *ifname, int flags)
931 os_memset(&ifr, 0, sizeof(ifr));
932 os_strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
933 ifr.ifr_flags = flags & 0xffff;
934 if (ioctl(drv->ioctl_sock, SIOCSIFFLAGS, (caddr_t) &ifr) < 0) {
935 perror("SIOCSIFFLAGS");
943 * wpa_driver_wext_set_ifflags - Set interface flags (SIOCSIFFLAGS)
944 * @drv: driver_wext private data
945 * @flags: New value for flags
946 * Returns: 0 on success, -1 on failure
948 int wpa_driver_wext_set_ifflags(struct wpa_driver_wext_data *drv, int flags)
950 return wpa_driver_wext_set_ifflags_ifname(drv, drv->ifname, flags);
955 * wpa_driver_wext_init - Initialize WE driver interface
956 * @ctx: context to be used when calling wpa_supplicant functions,
957 * e.g., wpa_supplicant_event()
958 * @ifname: interface name, e.g., wlan0
959 * Returns: Pointer to private data, %NULL on failure
961 void * wpa_driver_wext_init(void *ctx, const char *ifname)
964 struct sockaddr_nl local;
965 struct wpa_driver_wext_data *drv;
967 drv = os_zalloc(sizeof(*drv));
971 os_strncpy(drv->ifname, ifname, sizeof(drv->ifname));
973 drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
974 if (drv->ioctl_sock < 0) {
975 perror("socket(PF_INET,SOCK_DGRAM)");
980 s = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
982 perror("socket(PF_NETLINK,SOCK_RAW,NETLINK_ROUTE)");
983 close(drv->ioctl_sock);
988 os_memset(&local, 0, sizeof(local));
989 local.nl_family = AF_NETLINK;
990 local.nl_groups = RTMGRP_LINK;
991 if (bind(s, (struct sockaddr *) &local, sizeof(local)) < 0) {
992 perror("bind(netlink)");
994 close(drv->ioctl_sock);
999 eloop_register_read_sock(s, wpa_driver_wext_event_receive, drv, ctx);
1000 drv->event_sock = s;
1002 drv->mlme_sock = -1;
1004 wpa_driver_wext_finish_drv_init(drv);
1010 static void wpa_driver_wext_finish_drv_init(struct wpa_driver_wext_data *drv)
1014 if (wpa_driver_wext_get_ifflags(drv, &flags) != 0 ||
1015 wpa_driver_wext_set_ifflags(drv, flags | IFF_UP) != 0) {
1016 printf("Could not set interface '%s' UP\n", drv->ifname);
1019 os_sleep(0, WPA_DRIVER_WEXT_WAIT_US);
1022 * Make sure that the driver does not have any obsolete PMKID entries.
1024 wpa_driver_wext_flush_pmkid(drv);
1026 if (wpa_driver_wext_set_mode(drv, 0) < 0) {
1027 printf("Could not configure driver to use managed mode\n");
1030 wpa_driver_wext_get_range(drv);
1032 drv->ifindex = if_nametoindex(drv->ifname);
1034 if (os_strncmp(drv->ifname, "wlan", 4) == 0) {
1036 * Host AP driver may use both wlan# and wifi# interface in
1037 * wireless events. Since some of the versions included WE-18
1038 * support, let's add the alternative ifindex also from
1039 * driver_wext.c for the time being. This may be removed at
1040 * some point once it is believed that old versions of the
1041 * driver are not in use anymore.
1043 char ifname2[IFNAMSIZ + 1];
1044 os_strncpy(ifname2, drv->ifname, sizeof(ifname2));
1045 os_memcpy(ifname2, "wifi", 4);
1046 wpa_driver_wext_alternative_ifindex(drv, ifname2);
1049 wpa_driver_wext_send_oper_ifla(drv, 1, IF_OPER_DORMANT);
1054 * wpa_driver_wext_deinit - Deinitialize WE driver interface
1055 * @priv: Pointer to private wext data from wpa_driver_wext_init()
1057 * Shut down driver interface and processing of driver events. Free
1058 * private data buffer if one was allocated in wpa_driver_wext_init().
1060 void wpa_driver_wext_deinit(void *priv)
1062 struct wpa_driver_wext_data *drv = priv;
1065 eloop_cancel_timeout(wpa_driver_wext_scan_timeout, drv, drv->ctx);
1068 * Clear possibly configured driver parameters in order to make it
1069 * easier to use the driver after wpa_supplicant has been terminated.
1071 wpa_driver_wext_set_bssid(drv, (u8 *) "\x00\x00\x00\x00\x00\x00");
1073 wpa_driver_wext_send_oper_ifla(priv, 0, IF_OPER_UP);
1075 eloop_unregister_read_sock(drv->event_sock);
1076 if (drv->mlme_sock >= 0)
1077 eloop_unregister_read_sock(drv->mlme_sock);
1079 if (wpa_driver_wext_get_ifflags(drv, &flags) == 0)
1080 (void) wpa_driver_wext_set_ifflags(drv, flags & ~IFF_UP);
1082 #ifdef CONFIG_CLIENT_MLME
1083 if (drv->mlmedev[0] &&
1084 wpa_driver_wext_get_ifflags_ifname(drv, drv->mlmedev, &flags) == 0)
1085 (void) wpa_driver_wext_set_ifflags_ifname(drv, drv->mlmedev,
1087 #endif /* CONFIG_CLIENT_MLME */
1089 close(drv->event_sock);
1090 close(drv->ioctl_sock);
1091 if (drv->mlme_sock >= 0)
1092 close(drv->mlme_sock);
1093 os_free(drv->assoc_req_ies);
1094 os_free(drv->assoc_resp_ies);
1100 * wpa_driver_wext_scan_timeout - Scan timeout to report scan completion
1101 * @eloop_ctx: Unused
1102 * @timeout_ctx: ctx argument given to wpa_driver_wext_init()
1104 * This function can be used as registered timeout when starting a scan to
1105 * generate a scan completed event if the driver does not report this.
1107 void wpa_driver_wext_scan_timeout(void *eloop_ctx, void *timeout_ctx)
1109 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results");
1110 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL);
1115 * wpa_driver_wext_scan - Request the driver to initiate scan
1116 * @priv: Pointer to private wext data from wpa_driver_wext_init()
1117 * @ssid: Specific SSID to scan for (ProbeReq) or %NULL to scan for
1118 * all SSIDs (either active scan with broadcast SSID or passive
1120 * @ssid_len: Length of the SSID
1121 * Returns: 0 on success, -1 on failure
1123 int wpa_driver_wext_scan(void *priv, const u8 *ssid, size_t ssid_len)
1125 struct wpa_driver_wext_data *drv = priv;
1127 int ret = 0, timeout;
1128 struct iw_scan_req req;
1130 if (ssid_len > IW_ESSID_MAX_SIZE) {
1131 wpa_printf(MSG_DEBUG, "%s: too long SSID (%lu)",
1132 __FUNCTION__, (unsigned long) ssid_len);
1136 os_memset(&iwr, 0, sizeof(iwr));
1137 os_strncpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1139 if (ssid && ssid_len) {
1140 os_memset(&req, 0, sizeof(req));
1141 req.essid_len = ssid_len;
1142 req.bssid.sa_family = ARPHRD_ETHER;
1143 os_memset(req.bssid.sa_data, 0xff, ETH_ALEN);
1144 os_memcpy(req.essid, ssid, ssid_len);
1145 iwr.u.data.pointer = (caddr_t) &req;
1146 iwr.u.data.length = sizeof(req);
1147 iwr.u.data.flags = IW_SCAN_THIS_ESSID;
1150 if (ioctl(drv->ioctl_sock, SIOCSIWSCAN, &iwr) < 0) {
1151 perror("ioctl[SIOCSIWSCAN]");
1155 /* Not all drivers generate "scan completed" wireless event, so try to
1156 * read results after a timeout. */
1158 if (drv->scan_complete_events) {
1160 * The driver seems to deliver SIOCGIWSCAN events to notify
1161 * when scan is complete, so use longer timeout to avoid race
1162 * conditions with scanning and following association request.
1166 wpa_printf(MSG_DEBUG, "Scan requested (ret=%d) - scan timeout %d "
1167 "seconds", ret, timeout);
1168 eloop_cancel_timeout(wpa_driver_wext_scan_timeout, drv, drv->ctx);
1169 eloop_register_timeout(timeout, 0, wpa_driver_wext_scan_timeout, drv,
1176 /* Compare function for sorting scan results. Return >0 if @b is considered
1178 static int wpa_scan_result_compar(const void *a, const void *b)
1180 const struct wpa_scan_result *wa = a;
1181 const struct wpa_scan_result *wb = b;
1183 /* WPA/WPA2 support preferred */
1184 if ((wb->wpa_ie_len || wb->rsn_ie_len) &&
1185 !(wa->wpa_ie_len || wa->rsn_ie_len))
1187 if (!(wb->wpa_ie_len || wb->rsn_ie_len) &&
1188 (wa->wpa_ie_len || wa->rsn_ie_len))
1191 /* privacy support preferred */
1192 if ((wa->caps & IEEE80211_CAP_PRIVACY) == 0 &&
1193 (wb->caps & IEEE80211_CAP_PRIVACY))
1195 if ((wa->caps & IEEE80211_CAP_PRIVACY) &&
1196 (wb->caps & IEEE80211_CAP_PRIVACY) == 0)
1199 /* best/max rate preferred if signal level close enough XXX */
1200 if (wa->maxrate != wb->maxrate && abs(wb->level - wa->level) < 5)
1201 return wb->maxrate - wa->maxrate;
1203 /* use freq for channel preference */
1205 /* all things being equal, use signal level; if signal levels are
1206 * identical, use quality values since some drivers may only report
1207 * that value and leave the signal level zero */
1208 if (wb->level == wa->level)
1209 return wb->qual - wa->qual;
1210 return wb->level - wa->level;
1215 * wpa_driver_wext_get_scan_results - Fetch the latest scan results
1216 * @priv: Pointer to private wext data from wpa_driver_wext_init()
1217 * @results: Pointer to buffer for scan results
1218 * @max_size: Maximum number of entries (buffer size)
1219 * Returns: Number of scan result entries used on success, -1 on
1222 * If scan results include more than max_size BSSes, max_size will be
1223 * returned and the remaining entries will not be included in the
1226 int wpa_driver_wext_get_scan_results(void *priv,
1227 struct wpa_scan_result *results,
1230 struct wpa_driver_wext_data *drv = priv;
1235 struct iw_event iwe_buf, *iwe = &iwe_buf;
1236 char *pos, *end, *custom, *genie, *gpos, *gend;
1238 size_t len, clen, res_buf_len;
1240 os_memset(results, 0, max_size * sizeof(struct wpa_scan_result));
1242 /* To make sure correctly parse scan results which is impacted by wext
1243 * version, first check range->we_version, if it is default value (0),
1244 * update again here */
1245 if (drv->we_version_compiled == 0)
1246 wpa_driver_wext_get_range(drv);
1248 res_buf_len = IW_SCAN_MAX_DATA;
1250 res_buf = os_malloc(res_buf_len);
1251 if (res_buf == NULL)
1253 os_memset(&iwr, 0, sizeof(iwr));
1254 os_strncpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1255 iwr.u.data.pointer = res_buf;
1256 iwr.u.data.length = res_buf_len;
1258 if (ioctl(drv->ioctl_sock, SIOCGIWSCAN, &iwr) == 0)
1261 if (errno == E2BIG && res_buf_len < 100000) {
1265 wpa_printf(MSG_DEBUG, "Scan results did not fit - "
1266 "trying larger buffer (%lu bytes)",
1267 (unsigned long) res_buf_len);
1269 perror("ioctl[SIOCGIWSCAN]");
1275 len = iwr.u.data.length;
1279 pos = (char *) res_buf;
1280 end = (char *) res_buf + len;
1282 while (pos + IW_EV_LCP_LEN <= end) {
1284 /* Event data may be unaligned, so make a local, aligned copy
1285 * before processing. */
1286 os_memcpy(&iwe_buf, pos, IW_EV_LCP_LEN);
1287 if (iwe->len <= IW_EV_LCP_LEN)
1290 custom = pos + IW_EV_POINT_LEN;
1291 if (drv->we_version_compiled > 18 &&
1292 (iwe->cmd == SIOCGIWESSID ||
1293 iwe->cmd == SIOCGIWENCODE ||
1294 iwe->cmd == IWEVGENIE ||
1295 iwe->cmd == IWEVCUSTOM)) {
1296 /* WE-19 removed the pointer from struct iw_point */
1297 char *dpos = (char *) &iwe_buf.u.data.length;
1298 int dlen = dpos - (char *) &iwe_buf;
1299 os_memcpy(dpos, pos + IW_EV_LCP_LEN,
1300 sizeof(struct iw_event) - dlen);
1302 os_memcpy(&iwe_buf, pos, sizeof(struct iw_event));
1303 custom += IW_EV_POINT_OFF;
1311 if (ap_num < max_size) {
1312 os_memcpy(results[ap_num].bssid,
1313 iwe->u.ap_addr.sa_data, ETH_ALEN);
1317 if (ap_num >= max_size)
1319 if (iwe->u.mode == IW_MODE_ADHOC)
1320 results[ap_num].caps |= IEEE80211_CAP_IBSS;
1321 else if (iwe->u.mode == IW_MODE_MASTER ||
1322 iwe->u.mode == IW_MODE_INFRA)
1323 results[ap_num].caps |= IEEE80211_CAP_ESS;
1326 ssid_len = iwe->u.essid.length;
1327 if (custom + ssid_len > end)
1329 if (iwe->u.essid.flags &&
1331 ssid_len <= IW_ESSID_MAX_SIZE) {
1332 if (ap_num < max_size) {
1333 os_memcpy(results[ap_num].ssid, custom,
1335 results[ap_num].ssid_len = ssid_len;
1340 if (ap_num < max_size) {
1341 int divi = 1000000, i;
1342 if (iwe->u.freq.e == 0) {
1344 * Some drivers do not report
1345 * frequency, but a channel. Try to map
1346 * this to frequency by assuming they
1347 * are using IEEE 802.11b/g. But don't
1348 * overwrite a previously parsed
1349 * frequency if the driver sends both
1350 * frequency and channel, since the
1351 * driver may be sending an A-band
1352 * channel that we don't handle here.
1355 if (results[ap_num].freq)
1358 if (iwe->u.freq.m >= 1 &&
1359 iwe->u.freq.m <= 13) {
1360 results[ap_num].freq =
1364 } else if (iwe->u.freq.m == 14) {
1365 results[ap_num].freq = 2484;
1369 if (iwe->u.freq.e > 6) {
1371 MSG_DEBUG, "Invalid freq "
1372 "in scan results (BSSID="
1373 MACSTR ": m=%d e=%d\n",
1374 MAC2STR(results[ap_num].bssid),
1375 iwe->u.freq.m, iwe->u.freq.e);
1378 for (i = 0; i < iwe->u.freq.e; i++)
1380 results[ap_num].freq = iwe->u.freq.m / divi;
1384 if (ap_num < max_size) {
1385 results[ap_num].qual = iwe->u.qual.qual;
1386 results[ap_num].noise = iwe->u.qual.noise;
1387 results[ap_num].level = iwe->u.qual.level;
1391 if (ap_num < max_size &&
1392 !(iwe->u.data.flags & IW_ENCODE_DISABLED))
1393 results[ap_num].caps |= IEEE80211_CAP_PRIVACY;
1396 custom = pos + IW_EV_LCP_LEN;
1398 if (custom + clen > end)
1401 while (((ssize_t) clen) >=
1402 (ssize_t) sizeof(struct iw_param)) {
1403 /* Note: may be misaligned, make a local,
1405 os_memcpy(&p, custom, sizeof(struct iw_param));
1406 if (p.value > maxrate)
1408 clen -= sizeof(struct iw_param);
1409 custom += sizeof(struct iw_param);
1411 if (ap_num < max_size)
1412 results[ap_num].maxrate = maxrate;
1415 if (ap_num >= max_size)
1417 gpos = genie = custom;
1418 gend = genie + iwe->u.data.length;
1420 wpa_printf(MSG_INFO, "IWEVGENIE overflow");
1423 while (gpos + 1 < gend &&
1424 gpos + 2 + (u8) gpos[1] <= gend) {
1425 u8 ie = gpos[0], ielen = gpos[1] + 2;
1426 if (ielen > SSID_MAX_WPA_IE_LEN) {
1431 case GENERIC_INFO_ELEM:
1432 if (ielen < 2 + 4 ||
1434 "\x00\x50\xf2\x01", 4) !=
1437 os_memcpy(results[ap_num].wpa_ie, gpos,
1439 results[ap_num].wpa_ie_len = ielen;
1442 os_memcpy(results[ap_num].rsn_ie, gpos,
1444 results[ap_num].rsn_ie_len = ielen;
1451 clen = iwe->u.data.length;
1452 if (custom + clen > end)
1455 os_strncmp(custom, "wpa_ie=", 7) == 0 &&
1456 ap_num < max_size) {
1460 bytes = custom + clen - spos;
1464 if (bytes > SSID_MAX_WPA_IE_LEN) {
1465 wpa_printf(MSG_INFO, "Too long WPA IE "
1469 hexstr2bin(spos, results[ap_num].wpa_ie,
1471 results[ap_num].wpa_ie_len = bytes;
1472 } else if (clen > 7 &&
1473 os_strncmp(custom, "rsn_ie=", 7) == 0 &&
1474 ap_num < max_size) {
1478 bytes = custom + clen - spos;
1482 if (bytes > SSID_MAX_WPA_IE_LEN) {
1483 wpa_printf(MSG_INFO, "Too long RSN IE "
1487 hexstr2bin(spos, results[ap_num].rsn_ie,
1489 results[ap_num].rsn_ie_len = bytes;
1500 if (ap_num > max_size) {
1501 wpa_printf(MSG_DEBUG, "Too small scan result buffer - "
1502 "%lu BSSes but room only for %lu",
1503 (unsigned long) ap_num,
1504 (unsigned long) max_size);
1507 qsort(results, ap_num, sizeof(struct wpa_scan_result),
1508 wpa_scan_result_compar);
1510 wpa_printf(MSG_DEBUG, "Received %lu bytes of scan results (%lu BSSes)",
1511 (unsigned long) len, (unsigned long) ap_num);
1517 static int wpa_driver_wext_get_range(void *priv)
1519 struct wpa_driver_wext_data *drv = priv;
1520 struct iw_range *range;
1526 * Use larger buffer than struct iw_range in order to allow the
1527 * structure to grow in the future.
1529 buflen = sizeof(struct iw_range) + 500;
1530 range = os_zalloc(buflen);
1534 os_memset(&iwr, 0, sizeof(iwr));
1535 os_strncpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1536 iwr.u.data.pointer = (caddr_t) range;
1537 iwr.u.data.length = buflen;
1539 minlen = ((char *) &range->enc_capa) - (char *) range +
1540 sizeof(range->enc_capa);
1542 if (ioctl(drv->ioctl_sock, SIOCGIWRANGE, &iwr) < 0) {
1543 perror("ioctl[SIOCGIWRANGE]");
1546 } else if (iwr.u.data.length >= minlen &&
1547 range->we_version_compiled >= 18) {
1548 wpa_printf(MSG_DEBUG, "SIOCGIWRANGE: WE(compiled)=%d "
1549 "WE(source)=%d enc_capa=0x%x",
1550 range->we_version_compiled,
1551 range->we_version_source,
1553 drv->has_capability = 1;
1554 drv->we_version_compiled = range->we_version_compiled;
1555 if (range->enc_capa & IW_ENC_CAPA_WPA) {
1556 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_WPA |
1557 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK;
1559 if (range->enc_capa & IW_ENC_CAPA_WPA2) {
1560 drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
1561 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
1563 drv->capa.enc |= WPA_DRIVER_CAPA_ENC_WEP40 |
1564 WPA_DRIVER_CAPA_ENC_WEP104;
1565 if (range->enc_capa & IW_ENC_CAPA_CIPHER_TKIP)
1566 drv->capa.enc |= WPA_DRIVER_CAPA_ENC_TKIP;
1567 if (range->enc_capa & IW_ENC_CAPA_CIPHER_CCMP)
1568 drv->capa.enc |= WPA_DRIVER_CAPA_ENC_CCMP;
1569 wpa_printf(MSG_DEBUG, " capabilities: key_mgmt 0x%x enc 0x%x",
1570 drv->capa.key_mgmt, drv->capa.enc);
1572 wpa_printf(MSG_DEBUG, "SIOCGIWRANGE: too old (short) data - "
1573 "assuming WPA is not supported");
1581 static int wpa_driver_wext_set_wpa(void *priv, int enabled)
1583 struct wpa_driver_wext_data *drv = priv;
1584 wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
1586 return wpa_driver_wext_set_auth_param(drv, IW_AUTH_WPA_ENABLED,
1591 static int wpa_driver_wext_set_key_ext(void *priv, wpa_alg alg,
1592 const u8 *addr, int key_idx,
1593 int set_tx, const u8 *seq,
1595 const u8 *key, size_t key_len)
1597 struct wpa_driver_wext_data *drv = priv;
1600 struct iw_encode_ext *ext;
1602 if (seq_len > IW_ENCODE_SEQ_MAX_SIZE) {
1603 wpa_printf(MSG_DEBUG, "%s: Invalid seq_len %lu",
1604 __FUNCTION__, (unsigned long) seq_len);
1608 ext = os_zalloc(sizeof(*ext) + key_len);
1611 os_memset(&iwr, 0, sizeof(iwr));
1612 os_strncpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1613 iwr.u.encoding.flags = key_idx + 1;
1614 if (alg == WPA_ALG_NONE)
1615 iwr.u.encoding.flags |= IW_ENCODE_DISABLED;
1616 iwr.u.encoding.pointer = (caddr_t) ext;
1617 iwr.u.encoding.length = sizeof(*ext) + key_len;
1620 os_memcmp(addr, "\xff\xff\xff\xff\xff\xff", ETH_ALEN) == 0)
1621 ext->ext_flags |= IW_ENCODE_EXT_GROUP_KEY;
1623 ext->ext_flags |= IW_ENCODE_EXT_SET_TX_KEY;
1625 ext->addr.sa_family = ARPHRD_ETHER;
1627 os_memcpy(ext->addr.sa_data, addr, ETH_ALEN);
1629 os_memset(ext->addr.sa_data, 0xff, ETH_ALEN);
1630 if (key && key_len) {
1631 os_memcpy(ext + 1, key, key_len);
1632 ext->key_len = key_len;
1636 ext->alg = IW_ENCODE_ALG_NONE;
1639 ext->alg = IW_ENCODE_ALG_WEP;
1642 ext->alg = IW_ENCODE_ALG_TKIP;
1645 ext->alg = IW_ENCODE_ALG_CCMP;
1648 wpa_printf(MSG_DEBUG, "%s: Unknown algorithm %d",
1654 if (seq && seq_len) {
1655 ext->ext_flags |= IW_ENCODE_EXT_RX_SEQ_VALID;
1656 os_memcpy(ext->rx_seq, seq, seq_len);
1659 if (ioctl(drv->ioctl_sock, SIOCSIWENCODEEXT, &iwr) < 0) {
1660 ret = errno == EOPNOTSUPP ? -2 : -1;
1661 if (errno == ENODEV) {
1663 * ndiswrapper seems to be returning incorrect error
1668 perror("ioctl[SIOCSIWENCODEEXT]");
1677 * wpa_driver_wext_set_key - Configure encryption key
1678 * @priv: Pointer to private wext data from wpa_driver_wext_init()
1679 * @priv: Private driver interface data
1680 * @alg: Encryption algorithm (%WPA_ALG_NONE, %WPA_ALG_WEP,
1681 * %WPA_ALG_TKIP, %WPA_ALG_CCMP); %WPA_ALG_NONE clears the key.
1682 * @addr: Address of the peer STA or ff:ff:ff:ff:ff:ff for
1683 * broadcast/default keys
1684 * @key_idx: key index (0..3), usually 0 for unicast keys
1685 * @set_tx: Configure this key as the default Tx key (only used when
1686 * driver does not support separate unicast/individual key
1687 * @seq: Sequence number/packet number, seq_len octets, the next
1688 * packet number to be used for in replay protection; configured
1689 * for Rx keys (in most cases, this is only used with broadcast
1690 * keys and set to zero for unicast keys)
1691 * @seq_len: Length of the seq, depends on the algorithm:
1692 * TKIP: 6 octets, CCMP: 6 octets
1693 * @key: Key buffer; TKIP: 16-byte temporal key, 8-byte Tx Mic key,
1695 * @key_len: Length of the key buffer in octets (WEP: 5 or 13,
1696 * TKIP: 32, CCMP: 16)
1697 * Returns: 0 on success, -1 on failure
1699 * This function uses SIOCSIWENCODEEXT by default, but tries to use
1700 * SIOCSIWENCODE if the extended ioctl fails when configuring a WEP key.
1702 int wpa_driver_wext_set_key(void *priv, wpa_alg alg,
1703 const u8 *addr, int key_idx,
1704 int set_tx, const u8 *seq, size_t seq_len,
1705 const u8 *key, size_t key_len)
1707 struct wpa_driver_wext_data *drv = priv;
1711 wpa_printf(MSG_DEBUG, "%s: alg=%d key_idx=%d set_tx=%d seq_len=%lu "
1713 __FUNCTION__, alg, key_idx, set_tx,
1714 (unsigned long) seq_len, (unsigned long) key_len);
1716 ret = wpa_driver_wext_set_key_ext(drv, alg, addr, key_idx, set_tx,
1717 seq, seq_len, key, key_len);
1722 (alg == WPA_ALG_NONE || alg == WPA_ALG_WEP)) {
1723 wpa_printf(MSG_DEBUG, "Driver did not support "
1724 "SIOCSIWENCODEEXT, trying SIOCSIWENCODE");
1727 wpa_printf(MSG_DEBUG, "Driver did not support "
1728 "SIOCSIWENCODEEXT");
1732 os_memset(&iwr, 0, sizeof(iwr));
1733 os_strncpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1734 iwr.u.encoding.flags = key_idx + 1;
1735 if (alg == WPA_ALG_NONE)
1736 iwr.u.encoding.flags |= IW_ENCODE_DISABLED;
1737 iwr.u.encoding.pointer = (caddr_t) key;
1738 iwr.u.encoding.length = key_len;
1740 if (ioctl(drv->ioctl_sock, SIOCSIWENCODE, &iwr) < 0) {
1741 perror("ioctl[SIOCSIWENCODE]");
1745 if (set_tx && alg != WPA_ALG_NONE) {
1746 os_memset(&iwr, 0, sizeof(iwr));
1747 os_strncpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1748 iwr.u.encoding.flags = key_idx + 1;
1749 iwr.u.encoding.pointer = (caddr_t) NULL;
1750 iwr.u.encoding.length = 0;
1751 if (ioctl(drv->ioctl_sock, SIOCSIWENCODE, &iwr) < 0) {
1752 perror("ioctl[SIOCSIWENCODE] (set_tx)");
1761 static int wpa_driver_wext_set_countermeasures(void *priv,
1764 struct wpa_driver_wext_data *drv = priv;
1765 wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
1766 return wpa_driver_wext_set_auth_param(drv,
1767 IW_AUTH_TKIP_COUNTERMEASURES,
1772 static int wpa_driver_wext_set_drop_unencrypted(void *priv,
1775 struct wpa_driver_wext_data *drv = priv;
1776 wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
1777 drv->use_crypt = enabled;
1778 return wpa_driver_wext_set_auth_param(drv, IW_AUTH_DROP_UNENCRYPTED,
1783 static int wpa_driver_wext_mlme(struct wpa_driver_wext_data *drv,
1784 const u8 *addr, int cmd, int reason_code)
1787 struct iw_mlme mlme;
1790 os_memset(&iwr, 0, sizeof(iwr));
1791 os_strncpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1792 os_memset(&mlme, 0, sizeof(mlme));
1794 mlme.reason_code = reason_code;
1795 mlme.addr.sa_family = ARPHRD_ETHER;
1796 os_memcpy(mlme.addr.sa_data, addr, ETH_ALEN);
1797 iwr.u.data.pointer = (caddr_t) &mlme;
1798 iwr.u.data.length = sizeof(mlme);
1800 if (ioctl(drv->ioctl_sock, SIOCSIWMLME, &iwr) < 0) {
1801 perror("ioctl[SIOCSIWMLME]");
1809 static int wpa_driver_wext_deauthenticate(void *priv, const u8 *addr,
1812 struct wpa_driver_wext_data *drv = priv;
1813 wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
1814 return wpa_driver_wext_mlme(drv, addr, IW_MLME_DEAUTH, reason_code);
1818 static int wpa_driver_wext_disassociate(void *priv, const u8 *addr,
1821 struct wpa_driver_wext_data *drv = priv;
1822 wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
1823 return wpa_driver_wext_mlme(drv, addr, IW_MLME_DISASSOC,
1828 static int wpa_driver_wext_set_gen_ie(void *priv, const u8 *ie,
1831 struct wpa_driver_wext_data *drv = priv;
1835 os_memset(&iwr, 0, sizeof(iwr));
1836 os_strncpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1837 iwr.u.data.pointer = (caddr_t) ie;
1838 iwr.u.data.length = ie_len;
1840 if (ioctl(drv->ioctl_sock, SIOCSIWGENIE, &iwr) < 0) {
1841 perror("ioctl[SIOCSIWGENIE]");
1849 static int wpa_driver_wext_cipher2wext(int cipher)
1853 return IW_AUTH_CIPHER_NONE;
1855 return IW_AUTH_CIPHER_WEP40;
1857 return IW_AUTH_CIPHER_TKIP;
1859 return IW_AUTH_CIPHER_CCMP;
1861 return IW_AUTH_CIPHER_WEP104;
1868 static int wpa_driver_wext_keymgmt2wext(int keymgmt)
1871 case KEY_MGMT_802_1X:
1872 case KEY_MGMT_802_1X_NO_WPA:
1873 return IW_AUTH_KEY_MGMT_802_1X;
1875 return IW_AUTH_KEY_MGMT_PSK;
1883 wpa_driver_wext_auth_alg_fallback(struct wpa_driver_wext_data *drv,
1884 struct wpa_driver_associate_params *params)
1889 wpa_printf(MSG_DEBUG, "WEXT: Driver did not support "
1890 "SIOCSIWAUTH for AUTH_ALG, trying SIOCSIWENCODE");
1892 os_memset(&iwr, 0, sizeof(iwr));
1893 os_strncpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
1894 /* Just changing mode, not actual keys */
1895 iwr.u.encoding.flags = 0;
1896 iwr.u.encoding.pointer = (caddr_t) NULL;
1897 iwr.u.encoding.length = 0;
1900 * Note: IW_ENCODE_{OPEN,RESTRICTED} can be interpreted to mean two
1901 * different things. Here they are used to indicate Open System vs.
1902 * Shared Key authentication algorithm. However, some drivers may use
1903 * them to select between open/restricted WEP encrypted (open = allow
1904 * both unencrypted and encrypted frames; restricted = only allow
1905 * encrypted frames).
1908 if (!drv->use_crypt) {
1909 iwr.u.encoding.flags |= IW_ENCODE_DISABLED;
1911 if (params->auth_alg & AUTH_ALG_OPEN_SYSTEM)
1912 iwr.u.encoding.flags |= IW_ENCODE_OPEN;
1913 if (params->auth_alg & AUTH_ALG_SHARED_KEY)
1914 iwr.u.encoding.flags |= IW_ENCODE_RESTRICTED;
1917 if (ioctl(drv->ioctl_sock, SIOCSIWENCODE, &iwr) < 0) {
1918 perror("ioctl[SIOCSIWENCODE]");
1927 wpa_driver_wext_associate(void *priv,
1928 struct wpa_driver_associate_params *params)
1930 struct wpa_driver_wext_data *drv = priv;
1932 int allow_unencrypted_eapol;
1935 wpa_printf(MSG_DEBUG, "%s", __FUNCTION__);
1938 * If the driver did not support SIOCSIWAUTH, fallback to
1939 * SIOCSIWENCODE here.
1941 if (drv->auth_alg_fallback &&
1942 wpa_driver_wext_auth_alg_fallback(drv, params) < 0)
1945 if (!params->bssid &&
1946 wpa_driver_wext_set_bssid(drv, NULL) < 0)
1949 if (wpa_driver_wext_set_mode(drv, params->mode) < 0)
1951 /* TODO: should consider getting wpa version and cipher/key_mgmt suites
1952 * from configuration, not from here, where only the selected suite is
1954 if (wpa_driver_wext_set_gen_ie(drv, params->wpa_ie, params->wpa_ie_len)
1957 if (params->wpa_ie == NULL || params->wpa_ie_len == 0)
1958 value = IW_AUTH_WPA_VERSION_DISABLED;
1959 else if (params->wpa_ie[0] == RSN_INFO_ELEM)
1960 value = IW_AUTH_WPA_VERSION_WPA2;
1962 value = IW_AUTH_WPA_VERSION_WPA;
1963 if (wpa_driver_wext_set_auth_param(drv,
1964 IW_AUTH_WPA_VERSION, value) < 0)
1966 value = wpa_driver_wext_cipher2wext(params->pairwise_suite);
1967 if (wpa_driver_wext_set_auth_param(drv,
1968 IW_AUTH_CIPHER_PAIRWISE, value) < 0)
1970 value = wpa_driver_wext_cipher2wext(params->group_suite);
1971 if (wpa_driver_wext_set_auth_param(drv,
1972 IW_AUTH_CIPHER_GROUP, value) < 0)
1974 value = wpa_driver_wext_keymgmt2wext(params->key_mgmt_suite);
1975 if (wpa_driver_wext_set_auth_param(drv,
1976 IW_AUTH_KEY_MGMT, value) < 0)
1978 value = params->key_mgmt_suite != KEY_MGMT_NONE ||
1979 params->pairwise_suite != CIPHER_NONE ||
1980 params->group_suite != CIPHER_NONE ||
1982 if (wpa_driver_wext_set_auth_param(drv,
1983 IW_AUTH_PRIVACY_INVOKED, value) < 0)
1986 /* Allow unencrypted EAPOL messages even if pairwise keys are set when
1987 * not using WPA. IEEE 802.1X specifies that these frames are not
1988 * encrypted, but WPA encrypts them when pairwise keys are in use. */
1989 if (params->key_mgmt_suite == KEY_MGMT_802_1X ||
1990 params->key_mgmt_suite == KEY_MGMT_PSK)
1991 allow_unencrypted_eapol = 0;
1993 allow_unencrypted_eapol = 1;
1995 if (wpa_driver_wext_set_auth_param(drv,
1996 IW_AUTH_RX_UNENCRYPTED_EAPOL,
1997 allow_unencrypted_eapol) < 0)
1999 if (params->freq && wpa_driver_wext_set_freq(drv, params->freq) < 0)
2001 if (wpa_driver_wext_set_ssid(drv, params->ssid, params->ssid_len) < 0)
2003 if (params->bssid &&
2004 wpa_driver_wext_set_bssid(drv, params->bssid) < 0)
2011 static int wpa_driver_wext_set_auth_alg(void *priv, int auth_alg)
2013 struct wpa_driver_wext_data *drv = priv;
2016 if (auth_alg & AUTH_ALG_OPEN_SYSTEM)
2017 algs |= IW_AUTH_ALG_OPEN_SYSTEM;
2018 if (auth_alg & AUTH_ALG_SHARED_KEY)
2019 algs |= IW_AUTH_ALG_SHARED_KEY;
2020 if (auth_alg & AUTH_ALG_LEAP)
2021 algs |= IW_AUTH_ALG_LEAP;
2023 /* at least one algorithm should be set */
2024 algs = IW_AUTH_ALG_OPEN_SYSTEM;
2027 res = wpa_driver_wext_set_auth_param(drv, IW_AUTH_80211_AUTH_ALG,
2029 drv->auth_alg_fallback = res == -2;
2035 * wpa_driver_wext_set_mode - Set wireless mode (infra/adhoc), SIOCSIWMODE
2036 * @priv: Pointer to private wext data from wpa_driver_wext_init()
2037 * @mode: 0 = infra/BSS (associate with an AP), 1 = adhoc/IBSS
2038 * Returns: 0 on success, -1 on failure
2040 int wpa_driver_wext_set_mode(void *priv, int mode)
2042 struct wpa_driver_wext_data *drv = priv;
2044 int ret = -1, flags;
2045 unsigned int new_mode = mode ? IW_MODE_ADHOC : IW_MODE_INFRA;
2047 os_memset(&iwr, 0, sizeof(iwr));
2048 os_strncpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
2049 iwr.u.mode = new_mode;
2050 if (ioctl(drv->ioctl_sock, SIOCSIWMODE, &iwr) == 0) {
2055 if (errno != EBUSY) {
2056 perror("ioctl[SIOCSIWMODE]");
2060 /* mac80211 doesn't allow mode changes while the device is up, so if
2061 * the device isn't in the mode we're about to change to, take device
2062 * down, try to set the mode again, and bring it back up.
2064 if (ioctl(drv->ioctl_sock, SIOCGIWMODE, &iwr) < 0) {
2065 perror("ioctl[SIOCGIWMODE]");
2069 if (iwr.u.mode == new_mode) {
2074 if (wpa_driver_wext_get_ifflags(drv, &flags) == 0) {
2075 (void) wpa_driver_wext_set_ifflags(drv, flags & ~IFF_UP);
2077 /* Try to set the mode again while the interface is down */
2078 iwr.u.mode = new_mode;
2079 if (ioctl(drv->ioctl_sock, SIOCSIWMODE, &iwr) < 0)
2080 perror("ioctl[SIOCSIWMODE]");
2084 /* Ignore return value of get_ifflags to ensure that the device
2085 * is always up like it was before this function was called.
2087 (void) wpa_driver_wext_get_ifflags(drv, &flags);
2088 (void) wpa_driver_wext_set_ifflags(drv, flags | IFF_UP);
2096 static int wpa_driver_wext_pmksa(struct wpa_driver_wext_data *drv,
2097 u32 cmd, const u8 *bssid, const u8 *pmkid)
2100 struct iw_pmksa pmksa;
2103 os_memset(&iwr, 0, sizeof(iwr));
2104 os_strncpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
2105 os_memset(&pmksa, 0, sizeof(pmksa));
2107 pmksa.bssid.sa_family = ARPHRD_ETHER;
2109 os_memcpy(pmksa.bssid.sa_data, bssid, ETH_ALEN);
2111 os_memcpy(pmksa.pmkid, pmkid, IW_PMKID_LEN);
2112 iwr.u.data.pointer = (caddr_t) &pmksa;
2113 iwr.u.data.length = sizeof(pmksa);
2115 if (ioctl(drv->ioctl_sock, SIOCSIWPMKSA, &iwr) < 0) {
2116 if (errno != EOPNOTSUPP)
2117 perror("ioctl[SIOCSIWPMKSA]");
2125 static int wpa_driver_wext_add_pmkid(void *priv, const u8 *bssid,
2128 struct wpa_driver_wext_data *drv = priv;
2129 return wpa_driver_wext_pmksa(drv, IW_PMKSA_ADD, bssid, pmkid);
2133 static int wpa_driver_wext_remove_pmkid(void *priv, const u8 *bssid,
2136 struct wpa_driver_wext_data *drv = priv;
2137 return wpa_driver_wext_pmksa(drv, IW_PMKSA_REMOVE, bssid, pmkid);
2141 static int wpa_driver_wext_flush_pmkid(void *priv)
2143 struct wpa_driver_wext_data *drv = priv;
2144 return wpa_driver_wext_pmksa(drv, IW_PMKSA_FLUSH, NULL, NULL);
2148 static int wpa_driver_wext_get_capa(void *priv, struct wpa_driver_capa *capa)
2150 struct wpa_driver_wext_data *drv = priv;
2151 if (!drv->has_capability)
2153 os_memcpy(capa, &drv->capa, sizeof(*capa));
2158 int wpa_driver_wext_alternative_ifindex(struct wpa_driver_wext_data *drv,
2161 if (ifname == NULL) {
2166 drv->ifindex2 = if_nametoindex(ifname);
2167 if (drv->ifindex2 <= 0)
2170 wpa_printf(MSG_DEBUG, "Added alternative ifindex %d (%s) for "
2171 "wireless events", drv->ifindex2, ifname);
2177 int wpa_driver_wext_set_operstate(void *priv, int state)
2179 struct wpa_driver_wext_data *drv = priv;
2181 wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)",
2182 __func__, drv->operstate, state, state ? "UP" : "DORMANT");
2183 drv->operstate = state;
2184 return wpa_driver_wext_send_oper_ifla(
2185 drv, -1, state ? IF_OPER_UP : IF_OPER_DORMANT);
2189 #ifdef CONFIG_CLIENT_MLME
2190 static int hostapd_ioctl(struct wpa_driver_wext_data *drv,
2191 struct prism2_hostapd_param *param, int len)
2195 os_memset(&iwr, 0, sizeof(iwr));
2196 os_strncpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
2197 iwr.u.data.pointer = (caddr_t) param;
2198 iwr.u.data.length = len;
2200 if (ioctl(drv->ioctl_sock, PRISM2_IOCTL_HOSTAPD, &iwr) < 0) {
2201 perror("ioctl[PRISM2_IOCTL_HOSTAPD]");
2209 static struct wpa_hw_modes *
2210 wpa_driver_wext_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
2212 struct wpa_driver_wext_data *drv = priv;
2213 struct prism2_hostapd_param *param;
2215 struct wpa_hw_modes *modes = NULL;
2218 param = os_zalloc(PRISM2_HOSTAPD_MAX_BUF_SIZE);
2221 param->cmd = PRISM2_HOSTAPD_GET_HW_FEATURES;
2223 if (hostapd_ioctl(drv, param, PRISM2_HOSTAPD_MAX_BUF_SIZE) < 0) {
2224 perror("ioctl[PRISM2_IOCTL_HOSTAPD]");
2228 *num_modes = param->u.hw_features.num_modes;
2229 *flags = param->u.hw_features.flags;
2231 pos = param->u.hw_features.data;
2232 end = pos + PRISM2_HOSTAPD_MAX_BUF_SIZE -
2233 (param->u.hw_features.data - (u8 *) param);
2235 modes = os_zalloc(*num_modes * sizeof(struct wpa_hw_modes));
2239 for (i = 0; i < *num_modes; i++) {
2240 struct hostapd_ioctl_hw_modes_hdr *hdr;
2241 struct wpa_hw_modes *feature;
2244 hdr = (struct hostapd_ioctl_hw_modes_hdr *) pos;
2245 pos = (u8 *) (hdr + 1);
2246 clen = hdr->num_channels * sizeof(struct wpa_channel_data);
2247 rlen = hdr->num_rates * sizeof(struct wpa_rate_data);
2249 feature = &modes[i];
2250 switch (hdr->mode) {
2251 case MODE_IEEE80211A:
2252 feature->mode = WPA_MODE_IEEE80211A;
2254 case MODE_IEEE80211B:
2255 feature->mode = WPA_MODE_IEEE80211B;
2257 case MODE_IEEE80211G:
2258 feature->mode = WPA_MODE_IEEE80211G;
2260 case MODE_ATHEROS_TURBO:
2261 case MODE_ATHEROS_TURBOG:
2262 wpa_printf(MSG_ERROR, "Skip unsupported hw_mode=%d in "
2263 "get_hw_features data", hdr->mode);
2267 wpa_printf(MSG_ERROR, "Unknown hw_mode=%d in "
2268 "get_hw_features data", hdr->mode);
2269 ieee80211_sta_free_hw_features(modes, *num_modes);
2273 feature->num_channels = hdr->num_channels;
2274 feature->num_rates = hdr->num_rates;
2276 feature->channels = os_malloc(clen);
2277 feature->rates = os_malloc(rlen);
2278 if (!feature->channels || !feature->rates ||
2279 pos + clen + rlen > end) {
2280 ieee80211_sta_free_hw_features(modes, *num_modes);
2285 os_memcpy(feature->channels, pos, clen);
2287 os_memcpy(feature->rates, pos, rlen);
2297 int wpa_driver_wext_set_channel(void *priv, wpa_hw_mode phymode, int chan,
2300 return wpa_driver_wext_set_freq(priv, freq);
2304 static void wpa_driver_wext_mlme_read(int sock, void *eloop_ctx,
2307 struct wpa_driver_wext_data *drv = eloop_ctx;
2309 unsigned char buf[3000];
2310 struct ieee80211_frame_info *fi;
2311 struct ieee80211_rx_status rx_status;
2313 len = recv(sock, buf, sizeof(buf), 0);
2315 perror("recv[MLME]");
2319 if (len < (int) sizeof(struct ieee80211_frame_info)) {
2320 wpa_printf(MSG_DEBUG, "WEXT: Too short MLME frame (len=%d)",
2325 fi = (struct ieee80211_frame_info *) buf;
2326 if (ntohl(fi->version) != IEEE80211_FI_VERSION) {
2327 wpa_printf(MSG_DEBUG, "WEXT: Invalid MLME frame info version "
2328 "0x%x", ntohl(fi->version));
2332 os_memset(&rx_status, 0, sizeof(rx_status));
2333 rx_status.ssi = ntohl(fi->ssi_signal);
2334 rx_status.channel = ntohl(fi->channel);
2336 ieee80211_sta_rx(drv->ctx, buf + sizeof(struct ieee80211_frame_info),
2337 len - sizeof(struct ieee80211_frame_info),
2342 static int wpa_driver_wext_open_mlme(struct wpa_driver_wext_data *drv)
2344 int flags, ifindex, s, *i;
2345 struct sockaddr_ll addr;
2348 os_memset(&iwr, 0, sizeof(iwr));
2349 os_strncpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
2350 i = (int *) iwr.u.name;
2351 *i++ = PRISM2_PARAM_USER_SPACE_MLME;
2354 if (ioctl(drv->ioctl_sock, PRISM2_IOCTL_PRISM2_PARAM, &iwr) < 0) {
2355 wpa_printf(MSG_ERROR, "WEXT: Failed to configure driver to "
2356 "use user space MLME");
2360 ifindex = if_nametoindex(drv->mlmedev);
2362 wpa_printf(MSG_ERROR, "WEXT: mlmedev='%s' not found",
2367 if (wpa_driver_wext_get_ifflags_ifname(drv, drv->mlmedev, &flags) != 0
2368 || wpa_driver_wext_set_ifflags_ifname(drv, drv->mlmedev,
2369 flags | IFF_UP) != 0) {
2370 wpa_printf(MSG_ERROR, "WEXT: Could not set interface "
2371 "'%s' UP", drv->mlmedev);
2375 s = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
2377 perror("socket[PF_PACKET,SOCK_RAW]");
2381 os_memset(&addr, 0, sizeof(addr));
2382 addr.sll_family = AF_PACKET;
2383 addr.sll_ifindex = ifindex;
2385 if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
2386 perror("bind(MLME)");
2390 if (eloop_register_read_sock(s, wpa_driver_wext_mlme_read, drv, NULL))
2392 wpa_printf(MSG_ERROR, "WEXT: Could not register MLME read "
2402 static int wpa_driver_wext_send_mlme(void *priv, const u8 *data,
2405 struct wpa_driver_wext_data *drv = priv;
2408 ret = send(drv->mlme_sock, data, data_len, 0);
2410 perror("send[MLME]");
2418 static int wpa_driver_wext_mlme_add_sta(void *priv, const u8 *addr,
2419 const u8 *supp_rates,
2420 size_t supp_rates_len)
2422 struct wpa_driver_wext_data *drv = priv;
2423 struct prism2_hostapd_param param;
2426 os_memset(¶m, 0, sizeof(param));
2427 param.cmd = PRISM2_HOSTAPD_ADD_STA;
2428 os_memcpy(param.sta_addr, addr, ETH_ALEN);
2429 len = supp_rates_len;
2430 if (len > sizeof(param.u.add_sta.supp_rates))
2431 len = sizeof(param.u.add_sta.supp_rates);
2432 os_memcpy(param.u.add_sta.supp_rates, supp_rates, len);
2433 return hostapd_ioctl(drv, ¶m, sizeof(param));
2437 static int wpa_driver_wext_mlme_remove_sta(void *priv, const u8 *addr)
2439 struct wpa_driver_wext_data *drv = priv;
2440 struct prism2_hostapd_param param;
2442 os_memset(¶m, 0, sizeof(param));
2443 param.cmd = PRISM2_HOSTAPD_REMOVE_STA;
2444 os_memcpy(param.sta_addr, addr, ETH_ALEN);
2445 return hostapd_ioctl(drv, ¶m, sizeof(param));
2448 #endif /* CONFIG_CLIENT_MLME */
2451 static int wpa_driver_wext_set_param(void *priv, const char *param)
2453 #ifdef CONFIG_CLIENT_MLME
2454 struct wpa_driver_wext_data *drv = priv;
2455 const char *pos, *pos2;
2461 wpa_printf(MSG_DEBUG, "%s: param='%s'", __func__, param);
2463 pos = os_strstr(param, "mlmedev=");
2466 pos2 = os_strchr(pos, ' ');
2470 len = os_strlen(pos);
2471 if (len + 1 > sizeof(drv->mlmedev))
2473 os_memcpy(drv->mlmedev, pos, len);
2474 drv->mlmedev[len] = '\0';
2475 wpa_printf(MSG_DEBUG, "WEXT: Using user space MLME with "
2476 "mlmedev='%s'", drv->mlmedev);
2477 drv->capa.flags |= WPA_DRIVER_FLAGS_USER_SPACE_MLME;
2479 drv->mlme_sock = wpa_driver_wext_open_mlme(drv);
2480 if (drv->mlme_sock < 0)
2483 #endif /* CONFIG_CLIENT_MLME */
2489 int wpa_driver_wext_get_version(struct wpa_driver_wext_data *drv)
2491 return drv->we_version_compiled;
2495 int wpa_driver_priv_driver_cmd( void *priv, char *cmd, char *buf, size_t buf_len )
2497 struct wpa_driver_wext_data *drv = priv;
2498 struct wpa_supplicant *wpa_s = (struct wpa_supplicant *)(drv->ctx);
2502 wpa_printf(MSG_DEBUG, "%s %s len = %d", __func__, cmd, buf_len);
2504 if (os_strcasecmp(cmd, "RSSI-APPROX") == 0) {
2505 if (wpa_s->current_ssid) {
2506 wpa_printf(MSG_DEBUG, "approx: %s\n", wpa_s->current_ssid->ssid);
2507 ret = wpa_s->current_ssid->ssid_len;
2508 os_memcpy(buf, wpa_s->current_ssid->ssid, ret);
2509 ret += snprintf(&buf[ret], buf_len-ret, " rssi %d\n", wpa_s->rssi);
2516 os_memset(&iwr, 0, sizeof(iwr));
2517 os_strncpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
2518 os_memcpy(buf, cmd, strlen(cmd) + 1);
2519 iwr.u.data.pointer = buf;
2520 iwr.u.data.length = buf_len;
2522 if ((ret = ioctl(drv->ioctl_sock, SIOCSIWPRIV, &iwr)) < 0) {
2523 perror("ioctl[SIOCSIWPRIV]");
2527 wpa_printf(MSG_ERROR, "%s failed", __func__);
2530 if ((os_strcasecmp(cmd, "RSSI") == 0) ||
2531 (os_strcasecmp(cmd, "LINKSPEED") == 0) ||
2532 (os_strcasecmp(cmd, "MACADDR") == 0)) {
2535 /* else if (os_strcasecmp(cmd, "START") == 0) {
2536 os_sleep(0, WPA_DRIVER_WEXT_WAIT_US);
2537 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "STARTED");
2539 else if (os_strcasecmp(cmd, "STOP") == 0) {
2540 wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "STOPPED");
2542 wpa_printf(MSG_DEBUG, "%s %s len = %d, %d", __func__, buf, ret, strlen(buf));
2548 const struct wpa_driver_ops wpa_driver_wext_ops = {
2550 .desc = "Linux wireless extensions (generic)",
2551 .get_bssid = wpa_driver_wext_get_bssid,
2552 .get_ssid = wpa_driver_wext_get_ssid,
2553 .set_wpa = wpa_driver_wext_set_wpa,
2554 .set_key = wpa_driver_wext_set_key,
2555 .set_countermeasures = wpa_driver_wext_set_countermeasures,
2556 .set_drop_unencrypted = wpa_driver_wext_set_drop_unencrypted,
2557 .scan = wpa_driver_wext_scan,
2558 .get_scan_results = wpa_driver_wext_get_scan_results,
2559 .deauthenticate = wpa_driver_wext_deauthenticate,
2560 .disassociate = wpa_driver_wext_disassociate,
2561 .associate = wpa_driver_wext_associate,
2562 .set_auth_alg = wpa_driver_wext_set_auth_alg,
2563 .init = wpa_driver_wext_init,
2564 .deinit = wpa_driver_wext_deinit,
2565 .set_param = wpa_driver_wext_set_param,
2566 .add_pmkid = wpa_driver_wext_add_pmkid,
2567 .remove_pmkid = wpa_driver_wext_remove_pmkid,
2568 .flush_pmkid = wpa_driver_wext_flush_pmkid,
2569 .get_capa = wpa_driver_wext_get_capa,
2570 .set_operstate = wpa_driver_wext_set_operstate,
2571 #ifdef CONFIG_CLIENT_MLME
2572 .get_hw_feature_data = wpa_driver_wext_get_hw_feature_data,
2573 .set_channel = wpa_driver_wext_set_channel,
2574 .set_ssid = wpa_driver_wext_set_ssid,
2575 .set_bssid = wpa_driver_wext_set_bssid,
2576 .send_mlme = wpa_driver_wext_send_mlme,
2577 .mlme_add_sta = wpa_driver_wext_mlme_add_sta,
2578 .mlme_remove_sta = wpa_driver_wext_mlme_remove_sta,
2579 #endif /* CONFIG_CLIENT_MLME */
2581 .driver_cmd = wpa_driver_priv_driver_cmd,