2 * Copyright 2002-2005, Instant802 Networks, Inc.
3 * Copyright 2005-2006, Devicescape Software, Inc.
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.
10 #include <linux/module.h>
11 #include <linux/init.h>
12 #include <linux/netdevice.h>
13 #include <linux/types.h>
14 #include <linux/slab.h>
15 #include <linux/skbuff.h>
16 #include <linux/etherdevice.h>
17 #include <linux/if_arp.h>
18 #include <linux/wireless.h>
19 #include <net/iw_handler.h>
20 #include <asm/uaccess.h>
22 #include <net/mac80211.h>
23 #include "ieee80211_i.h"
30 static int ieee80211_ioctl_siwgenie(struct net_device *dev,
31 struct iw_request_info *info,
32 struct iw_point *data, char *extra)
34 struct ieee80211_sub_if_data *sdata;
36 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
38 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
39 int ret = ieee80211_sta_set_extra_ie(sdata, extra, data->length);
40 if (ret && ret != -EALREADY)
42 sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
43 sdata->u.mgd.flags &= ~IEEE80211_STA_EXT_SME;
44 sdata->u.mgd.flags &= ~IEEE80211_STA_CONTROL_PORT;
46 ieee80211_sta_req_auth(sdata);
53 static int ieee80211_ioctl_siwfreq(struct net_device *dev,
54 struct iw_request_info *info,
55 struct iw_freq *freq, char *extra)
57 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
58 struct ieee80211_local *local = sdata->local;
59 struct ieee80211_channel *chan;
61 if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
62 return cfg80211_ibss_wext_siwfreq(dev, info, freq, extra);
63 else if (sdata->vif.type == NL80211_IFTYPE_STATION)
64 sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_CHANNEL_SEL;
66 /* freq->e == 0: freq->m = channel; otherwise freq = m * 10^e */
69 if (sdata->vif.type == NL80211_IFTYPE_STATION)
71 IEEE80211_STA_AUTO_CHANNEL_SEL;
74 chan = ieee80211_get_channel(local->hw.wiphy,
75 ieee80211_channel_to_frequency(freq->m));
78 for (i = 0; i < freq->e; i++)
82 chan = ieee80211_get_channel(local->hw.wiphy, freq->m / div);
88 if (chan->flags & IEEE80211_CHAN_DISABLED)
92 * no change except maybe auto -> fixed, ignore the HT
93 * setting so you can fix a channel you're on already
95 if (local->oper_channel == chan)
98 if (sdata->vif.type == NL80211_IFTYPE_STATION)
99 ieee80211_sta_req_auth(sdata);
101 local->oper_channel = chan;
102 local->oper_channel_type = NL80211_CHAN_NO_HT;
103 ieee80211_hw_config(local, 0);
109 static int ieee80211_ioctl_giwfreq(struct net_device *dev,
110 struct iw_request_info *info,
111 struct iw_freq *freq, char *extra)
113 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
114 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
116 if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
117 return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra);
119 freq->m = local->oper_channel->center_freq;
126 static int ieee80211_ioctl_siwessid(struct net_device *dev,
127 struct iw_request_info *info,
128 struct iw_point *data, char *ssid)
130 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
131 size_t len = data->length;
134 if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
135 return cfg80211_ibss_wext_siwessid(dev, info, data, ssid);
137 /* iwconfig uses nul termination in SSID.. */
138 if (len > 0 && ssid[len - 1] == '\0')
141 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
143 sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_SSID_SEL;
145 sdata->u.mgd.flags |= IEEE80211_STA_AUTO_SSID_SEL;
147 ret = ieee80211_sta_set_ssid(sdata, ssid, len);
151 sdata->u.mgd.flags &= ~IEEE80211_STA_EXT_SME;
152 sdata->u.mgd.flags &= ~IEEE80211_STA_CONTROL_PORT;
153 ieee80211_sta_req_auth(sdata);
161 static int ieee80211_ioctl_giwessid(struct net_device *dev,
162 struct iw_request_info *info,
163 struct iw_point *data, char *ssid)
166 struct ieee80211_sub_if_data *sdata;
168 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
170 if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
171 return cfg80211_ibss_wext_giwessid(dev, info, data, ssid);
173 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
174 int res = ieee80211_sta_get_ssid(sdata, ssid, &len);
187 static int ieee80211_ioctl_siwap(struct net_device *dev,
188 struct iw_request_info *info,
189 struct sockaddr *ap_addr, char *extra)
191 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
193 if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
194 return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra);
196 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
199 if (is_zero_ether_addr((u8 *) &ap_addr->sa_data))
200 sdata->u.mgd.flags |= IEEE80211_STA_AUTO_BSSID_SEL |
201 IEEE80211_STA_AUTO_CHANNEL_SEL;
202 else if (is_broadcast_ether_addr((u8 *) &ap_addr->sa_data))
203 sdata->u.mgd.flags |= IEEE80211_STA_AUTO_BSSID_SEL;
205 sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
206 ret = ieee80211_sta_set_bssid(sdata, (u8 *) &ap_addr->sa_data);
209 sdata->u.mgd.flags &= ~IEEE80211_STA_EXT_SME;
210 sdata->u.mgd.flags &= ~IEEE80211_STA_CONTROL_PORT;
211 ieee80211_sta_req_auth(sdata);
213 } else if (sdata->vif.type == NL80211_IFTYPE_WDS) {
215 * If it is necessary to update the WDS peer address
216 * while the interface is running, then we need to do
217 * more work here, namely if it is running we need to
218 * add a new and remove the old STA entry, this is
219 * normally handled by _open() and _stop().
221 if (netif_running(dev))
224 memcpy(&sdata->u.wds.remote_addr, (u8 *) &ap_addr->sa_data,
234 static int ieee80211_ioctl_giwap(struct net_device *dev,
235 struct iw_request_info *info,
236 struct sockaddr *ap_addr, char *extra)
238 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
240 if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
241 return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra);
243 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
244 if (sdata->u.mgd.state == IEEE80211_STA_MLME_ASSOCIATED) {
245 ap_addr->sa_family = ARPHRD_ETHER;
246 memcpy(&ap_addr->sa_data, sdata->u.mgd.bssid, ETH_ALEN);
248 memset(&ap_addr->sa_data, 0, ETH_ALEN);
250 } else if (sdata->vif.type == NL80211_IFTYPE_WDS) {
251 ap_addr->sa_family = ARPHRD_ETHER;
252 memcpy(&ap_addr->sa_data, sdata->u.wds.remote_addr, ETH_ALEN);
260 static int ieee80211_ioctl_siwrate(struct net_device *dev,
261 struct iw_request_info *info,
262 struct iw_param *rate, char *extra)
264 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
265 int i, err = -EINVAL;
266 u32 target_rate = rate->value / 100000;
267 struct ieee80211_sub_if_data *sdata;
268 struct ieee80211_supported_band *sband;
270 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
272 sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
274 /* target_rate = -1, rate->fixed = 0 means auto only, so use all rates
275 * target_rate = X, rate->fixed = 1 means only rate X
276 * target_rate = X, rate->fixed = 0 means all rates <= X */
277 sdata->max_ratectrl_rateidx = -1;
278 sdata->force_unicast_rateidx = -1;
282 for (i=0; i< sband->n_bitrates; i++) {
283 struct ieee80211_rate *brate = &sband->bitrates[i];
284 int this_rate = brate->bitrate;
286 if (target_rate == this_rate) {
287 sdata->max_ratectrl_rateidx = i;
289 sdata->force_unicast_rateidx = i;
297 static int ieee80211_ioctl_giwrate(struct net_device *dev,
298 struct iw_request_info *info,
299 struct iw_param *rate, char *extra)
301 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
302 struct sta_info *sta;
303 struct ieee80211_sub_if_data *sdata;
304 struct ieee80211_supported_band *sband;
306 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
308 if (sdata->vif.type != NL80211_IFTYPE_STATION)
311 sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
315 sta = sta_info_get(local, sdata->u.mgd.bssid);
317 if (sta && !(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS))
318 rate->value = sband->bitrates[sta->last_tx_rate.idx].bitrate;
327 rate->value *= 100000;
332 static int ieee80211_ioctl_siwpower(struct net_device *dev,
333 struct iw_request_info *info,
334 struct iw_param *wrq,
337 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
338 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
339 struct ieee80211_conf *conf = &local->hw.conf;
343 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
346 if (sdata->vif.type != NL80211_IFTYPE_STATION)
355 switch (wrq->flags & IW_POWER_MODE) {
356 case IW_POWER_ON: /* If not specified */
357 case IW_POWER_MODE: /* If set all mask */
358 case IW_POWER_ALL_R: /* If explicitely state all */
361 default: /* Otherwise we ignore */
365 if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT))
368 if (wrq->flags & IW_POWER_TIMEOUT)
369 timeout = wrq->value / 1000;
372 if (ps == sdata->u.mgd.powersave && timeout == conf->dynamic_ps_timeout)
375 sdata->u.mgd.powersave = ps;
376 conf->dynamic_ps_timeout = timeout;
378 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
379 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
381 ieee80211_recalc_ps(local, -1);
386 static int ieee80211_ioctl_giwpower(struct net_device *dev,
387 struct iw_request_info *info,
388 union iwreq_data *wrqu,
391 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
393 wrqu->power.disabled = !sdata->u.mgd.powersave;
398 static int ieee80211_ioctl_siwauth(struct net_device *dev,
399 struct iw_request_info *info,
400 struct iw_param *data, char *extra)
402 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
405 switch (data->flags & IW_AUTH_INDEX) {
406 case IW_AUTH_WPA_VERSION:
407 case IW_AUTH_CIPHER_GROUP:
408 case IW_AUTH_WPA_ENABLED:
409 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
410 case IW_AUTH_KEY_MGMT:
411 case IW_AUTH_CIPHER_GROUP_MGMT:
413 case IW_AUTH_CIPHER_PAIRWISE:
414 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
415 if (data->value & (IW_AUTH_CIPHER_WEP40 |
416 IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_TKIP))
417 sdata->u.mgd.flags |=
418 IEEE80211_STA_TKIP_WEP_USED;
420 sdata->u.mgd.flags &=
421 ~IEEE80211_STA_TKIP_WEP_USED;
424 case IW_AUTH_DROP_UNENCRYPTED:
425 sdata->drop_unencrypted = !!data->value;
427 case IW_AUTH_PRIVACY_INVOKED:
428 if (sdata->vif.type != NL80211_IFTYPE_STATION)
431 sdata->u.mgd.flags &= ~IEEE80211_STA_PRIVACY_INVOKED;
433 * Privacy invoked by wpa_supplicant, store the
434 * value and allow associating to a protected
435 * network without having a key up front.
438 sdata->u.mgd.flags |=
439 IEEE80211_STA_PRIVACY_INVOKED;
442 case IW_AUTH_80211_AUTH_ALG:
443 if (sdata->vif.type == NL80211_IFTYPE_STATION)
444 sdata->u.mgd.auth_algs = data->value;
449 if (!(sdata->local->hw.flags & IEEE80211_HW_MFP_CAPABLE)) {
453 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
454 switch (data->value) {
455 case IW_AUTH_MFP_DISABLED:
456 sdata->u.mgd.mfp = IEEE80211_MFP_DISABLED;
458 case IW_AUTH_MFP_OPTIONAL:
459 sdata->u.mgd.mfp = IEEE80211_MFP_OPTIONAL;
461 case IW_AUTH_MFP_REQUIRED:
462 sdata->u.mgd.mfp = IEEE80211_MFP_REQUIRED;
477 /* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */
478 static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev)
480 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
481 struct iw_statistics *wstats = &local->wstats;
482 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
483 struct sta_info *sta = NULL;
487 if (sdata->vif.type == NL80211_IFTYPE_STATION)
488 sta = sta_info_get(local, sdata->u.mgd.bssid);
491 wstats->discard.fragment = 0;
492 wstats->discard.misc = 0;
493 wstats->qual.qual = 0;
494 wstats->qual.level = 0;
495 wstats->qual.noise = 0;
496 wstats->qual.updated = IW_QUAL_ALL_INVALID;
498 wstats->qual.updated = 0;
500 * mirror what cfg80211 does for iwrange/scan results,
501 * otherwise userspace gets confused.
503 if (local->hw.flags & (IEEE80211_HW_SIGNAL_UNSPEC |
504 IEEE80211_HW_SIGNAL_DBM)) {
505 wstats->qual.updated |= IW_QUAL_LEVEL_UPDATED;
506 wstats->qual.updated |= IW_QUAL_QUAL_UPDATED;
508 wstats->qual.updated |= IW_QUAL_LEVEL_INVALID;
509 wstats->qual.updated |= IW_QUAL_QUAL_INVALID;
512 if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC) {
513 wstats->qual.level = sta->last_signal;
514 wstats->qual.qual = sta->last_signal;
515 } else if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) {
516 int sig = sta->last_signal;
518 wstats->qual.updated |= IW_QUAL_DBM;
519 wstats->qual.level = sig;
524 wstats->qual.qual = sig + 110;
527 if (local->hw.flags & IEEE80211_HW_NOISE_DBM) {
529 * This assumes that if driver reports noise, it also
530 * reports signal in dBm.
532 wstats->qual.noise = sta->last_noise;
533 wstats->qual.updated |= IW_QUAL_NOISE_UPDATED;
535 wstats->qual.updated |= IW_QUAL_NOISE_INVALID;
544 static int ieee80211_ioctl_giwauth(struct net_device *dev,
545 struct iw_request_info *info,
546 struct iw_param *data, char *extra)
548 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
551 switch (data->flags & IW_AUTH_INDEX) {
552 case IW_AUTH_80211_AUTH_ALG:
553 if (sdata->vif.type == NL80211_IFTYPE_STATION)
554 data->value = sdata->u.mgd.auth_algs;
566 /* Structures to export the Wireless Handlers */
568 static const iw_handler ieee80211_handler[] =
570 (iw_handler) NULL, /* SIOCSIWCOMMIT */
571 (iw_handler) cfg80211_wext_giwname, /* SIOCGIWNAME */
572 (iw_handler) NULL, /* SIOCSIWNWID */
573 (iw_handler) NULL, /* SIOCGIWNWID */
574 (iw_handler) ieee80211_ioctl_siwfreq, /* SIOCSIWFREQ */
575 (iw_handler) ieee80211_ioctl_giwfreq, /* SIOCGIWFREQ */
576 (iw_handler) cfg80211_wext_siwmode, /* SIOCSIWMODE */
577 (iw_handler) cfg80211_wext_giwmode, /* SIOCGIWMODE */
578 (iw_handler) NULL, /* SIOCSIWSENS */
579 (iw_handler) NULL, /* SIOCGIWSENS */
580 (iw_handler) NULL /* not used */, /* SIOCSIWRANGE */
581 (iw_handler) cfg80211_wext_giwrange, /* SIOCGIWRANGE */
582 (iw_handler) NULL /* not used */, /* SIOCSIWPRIV */
583 (iw_handler) NULL /* kernel code */, /* SIOCGIWPRIV */
584 (iw_handler) NULL /* not used */, /* SIOCSIWSTATS */
585 (iw_handler) NULL /* kernel code */, /* SIOCGIWSTATS */
586 (iw_handler) NULL, /* SIOCSIWSPY */
587 (iw_handler) NULL, /* SIOCGIWSPY */
588 (iw_handler) NULL, /* SIOCSIWTHRSPY */
589 (iw_handler) NULL, /* SIOCGIWTHRSPY */
590 (iw_handler) ieee80211_ioctl_siwap, /* SIOCSIWAP */
591 (iw_handler) ieee80211_ioctl_giwap, /* SIOCGIWAP */
592 (iw_handler) cfg80211_wext_siwmlme, /* SIOCSIWMLME */
593 (iw_handler) NULL, /* SIOCGIWAPLIST */
594 (iw_handler) cfg80211_wext_siwscan, /* SIOCSIWSCAN */
595 (iw_handler) cfg80211_wext_giwscan, /* SIOCGIWSCAN */
596 (iw_handler) ieee80211_ioctl_siwessid, /* SIOCSIWESSID */
597 (iw_handler) ieee80211_ioctl_giwessid, /* SIOCGIWESSID */
598 (iw_handler) NULL, /* SIOCSIWNICKN */
599 (iw_handler) NULL, /* SIOCGIWNICKN */
600 (iw_handler) NULL, /* -- hole -- */
601 (iw_handler) NULL, /* -- hole -- */
602 (iw_handler) ieee80211_ioctl_siwrate, /* SIOCSIWRATE */
603 (iw_handler) ieee80211_ioctl_giwrate, /* SIOCGIWRATE */
604 (iw_handler) cfg80211_wext_siwrts, /* SIOCSIWRTS */
605 (iw_handler) cfg80211_wext_giwrts, /* SIOCGIWRTS */
606 (iw_handler) cfg80211_wext_siwfrag, /* SIOCSIWFRAG */
607 (iw_handler) cfg80211_wext_giwfrag, /* SIOCGIWFRAG */
608 (iw_handler) cfg80211_wext_siwtxpower, /* SIOCSIWTXPOW */
609 (iw_handler) cfg80211_wext_giwtxpower, /* SIOCGIWTXPOW */
610 (iw_handler) cfg80211_wext_siwretry, /* SIOCSIWRETRY */
611 (iw_handler) cfg80211_wext_giwretry, /* SIOCGIWRETRY */
612 (iw_handler) cfg80211_wext_siwencode, /* SIOCSIWENCODE */
613 (iw_handler) cfg80211_wext_giwencode, /* SIOCGIWENCODE */
614 (iw_handler) ieee80211_ioctl_siwpower, /* SIOCSIWPOWER */
615 (iw_handler) ieee80211_ioctl_giwpower, /* SIOCGIWPOWER */
616 (iw_handler) NULL, /* -- hole -- */
617 (iw_handler) NULL, /* -- hole -- */
618 (iw_handler) ieee80211_ioctl_siwgenie, /* SIOCSIWGENIE */
619 (iw_handler) NULL, /* SIOCGIWGENIE */
620 (iw_handler) ieee80211_ioctl_siwauth, /* SIOCSIWAUTH */
621 (iw_handler) ieee80211_ioctl_giwauth, /* SIOCGIWAUTH */
622 (iw_handler) cfg80211_wext_siwencodeext, /* SIOCSIWENCODEEXT */
623 (iw_handler) NULL, /* SIOCGIWENCODEEXT */
624 (iw_handler) NULL, /* SIOCSIWPMKSA */
625 (iw_handler) NULL, /* -- hole -- */
628 const struct iw_handler_def ieee80211_iw_handler_def =
630 .num_standard = ARRAY_SIZE(ieee80211_handler),
631 .standard = (iw_handler *) ieee80211_handler,
632 .get_wireless_stats = ieee80211_get_wireless_stats,