/*
* This file contains our _wx handlers. Make sure you EXPORT_SYMBOL_GPL them
+ *
+ * Copyright (c) 2005, 2006 Johannes Berg <johannes@sipsolutions.net>
+ * Joseph Jezak <josejx@gentoo.org>
+ * Larry Finger <Larry.Finger@lwfinger.net>
+ * Danny van Dyk <kugelfang@gentoo.org>
+ * Michael Buesch <mbuesch@freenet.de>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called COPYING.
*/
#include "ieee80211softmac_priv.h"
#include <net/iw_handler.h>
-
+/* for is_broadcast_ether_addr and is_zero_ether_addr */
+#include <linux/etherdevice.h>
int
ieee80211softmac_wx_trigger_scan(struct net_device *net_dev,
EXPORT_SYMBOL_GPL(ieee80211softmac_wx_trigger_scan);
+/* if we're still scanning, return -EAGAIN so that userspace tools
+ * can get the complete scan results, otherwise return 0. */
int
ieee80211softmac_wx_get_scan_results(struct net_device *net_dev,
struct iw_request_info *info,
union iwreq_data *data,
char *extra)
{
+ unsigned long flags;
struct ieee80211softmac_device *sm = ieee80211_priv(net_dev);
+
+ spin_lock_irqsave(&sm->lock, flags);
+ if (sm->scanning) {
+ spin_unlock_irqrestore(&sm->lock, flags);
+ return -EAGAIN;
+ }
+ spin_unlock_irqrestore(&sm->lock, flags);
return ieee80211_wx_get_scan(sm->ieee, info, data, extra);
}
EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_scan_results);
char *extra)
{
struct ieee80211softmac_device *sm = ieee80211_priv(net_dev);
+ struct ieee80211softmac_network *n;
+ struct ieee80211softmac_auth_queue_item *authptr;
int length = 0;
- unsigned long flags;
-
- spin_lock_irqsave(&sm->lock, flags);
-
+
+ mutex_lock(&sm->associnfo.mutex);
+
+ /* Check if we're already associating to this or another network
+ * If it's another network, cancel and start over with our new network
+ * If it's our network, ignore the change, we're already doing it!
+ */
+ if((sm->associnfo.associating || sm->associnfo.associated) &&
+ (data->essid.flags && data->essid.length)) {
+ /* Get the associating network */
+ n = ieee80211softmac_get_network_by_bssid(sm, sm->associnfo.bssid);
+ if(n && n->essid.len == data->essid.length &&
+ !memcmp(n->essid.data, extra, n->essid.len)) {
+ dprintk(KERN_INFO PFX "Already associating or associated to "MAC_FMT"\n",
+ MAC_ARG(sm->associnfo.bssid));
+ goto out;
+ } else {
+ dprintk(KERN_INFO PFX "Canceling existing associate request!\n");
+ /* Cancel assoc work */
+ cancel_delayed_work(&sm->associnfo.work);
+ /* We don't have to do this, but it's a little cleaner */
+ list_for_each_entry(authptr, &sm->auth_queue, list)
+ cancel_delayed_work(&authptr->work);
+ sm->associnfo.bssvalid = 0;
+ sm->associnfo.bssfixed = 0;
+ flush_scheduled_work();
+ sm->associnfo.associating = 0;
+ sm->associnfo.associated = 0;
+ }
+ }
+
+
sm->associnfo.static_essid = 0;
+ sm->associnfo.assoc_wait = 0;
- if (data->essid.flags && data->essid.length && extra /*required?*/) {
- length = min(data->essid.length - 1, IW_ESSID_MAX_SIZE);
+ if (data->essid.flags && data->essid.length) {
+ length = min((int)data->essid.length, IW_ESSID_MAX_SIZE);
if (length) {
memcpy(sm->associnfo.req_essid.data, extra, length);
sm->associnfo.static_essid = 1;
}
}
- sm->associnfo.scan_retry = IEEE80211SOFTMAC_ASSOC_SCAN_RETRY_LIMIT;
/* set our requested ESSID length.
* If applicable, we have already copied the data in */
sm->associnfo.req_essid.len = length;
+ sm->associnfo.associating = 1;
/* queue lower level code to do work (if necessary) */
- queue_work(sm->workqueue, &sm->associnfo.work);
+ schedule_delayed_work(&sm->associnfo.work, 0);
+out:
+ mutex_unlock(&sm->associnfo.mutex);
- spin_unlock_irqrestore(&sm->lock, flags);
return 0;
}
EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_essid);
char *extra)
{
struct ieee80211softmac_device *sm = ieee80211_priv(net_dev);
- unsigned long flags;
- /* avoid getting inconsistent information */
- spin_lock_irqsave(&sm->lock, flags);
+ mutex_lock(&sm->associnfo.mutex);
/* If all fails, return ANY (empty) */
data->essid.length = 0;
data->essid.flags = 0; /* active */
}
/* If we're associating/associated, return that */
- if (sm->associated || sm->associnfo.associating) {
+ if (sm->associnfo.associated || sm->associnfo.associating) {
data->essid.length = sm->associnfo.associate_essid.len;
data->essid.flags = 1; /* active */
memcpy(extra, sm->associnfo.associate_essid.data, sm->associnfo.associate_essid.len);
}
- spin_unlock_irqrestore(&sm->lock, flags);
+ mutex_unlock(&sm->associnfo.mutex);
+
return 0;
}
EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_essid);
int err = -EINVAL;
if (in_rate == -1) {
- /* automatic detect */
- if (ieee->modulation & IEEE80211_OFDM_MODULATION)
- in_rate = 54000000;
- else
+ /* FIXME: We don't correctly handle backing down to lower
+ rates, so 801.11g devices start off at 11M for now. People
+ can manually change it if they really need to, but 11M is
+ more reliable. Note similar logic in
+ ieee80211softmac_wx_set_rate() */
+ if (ieee->modulation & IEEE80211_CCK_MODULATION)
in_rate = 11000000;
+ else
+ in_rate = 54000000;
}
switch (in_rate) {
if (is_ofdm && !(ieee->modulation & IEEE80211_OFDM_MODULATION))
goto out_unlock;
- mac->txrates.default_rate = rate;
- mac->txrates.default_fallback = lower_rate(mac, rate);
+ mac->txrates.user_rate = rate;
+ ieee80211softmac_recalc_txrates(mac);
err = 0;
out_unlock:
{
struct ieee80211softmac_device *mac = ieee80211_priv(net_dev);
int err = 0;
- unsigned long flags;
- spin_lock_irqsave(&mac->lock, flags);
+ mutex_lock(&mac->associnfo.mutex);
if (mac->associnfo.bssvalid)
memcpy(data->ap_addr.sa_data, mac->associnfo.bssid, ETH_ALEN);
else
memset(data->ap_addr.sa_data, 0xff, ETH_ALEN);
data->ap_addr.sa_family = ARPHRD_ETHER;
- spin_unlock_irqrestore(&mac->lock, flags);
+ mutex_unlock(&mac->associnfo.mutex);
+
return err;
}
EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_wap);
char *extra)
{
struct ieee80211softmac_device *mac = ieee80211_priv(net_dev);
- static const unsigned char any[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
- static const unsigned char off[] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
- unsigned long flags;
/* sanity check */
if (data->ap_addr.sa_family != ARPHRD_ETHER) {
return -EINVAL;
}
- spin_lock_irqsave(&mac->lock, flags);
- if (!memcmp(any, data->ap_addr.sa_data, ETH_ALEN) ||
- !memcmp(off, data->ap_addr.sa_data, ETH_ALEN)) {
- queue_work(mac->workqueue, &mac->associnfo.work);
- goto out;
+ mutex_lock(&mac->associnfo.mutex);
+ if (is_broadcast_ether_addr(data->ap_addr.sa_data)) {
+ /* the bssid we have is not to be fixed any longer,
+ * and we should reassociate to the best AP. */
+ mac->associnfo.bssfixed = 0;
+ /* force reassociation */
+ mac->associnfo.bssvalid = 0;
+ if (mac->associnfo.associated)
+ schedule_delayed_work(&mac->associnfo.work, 0);
+ } else if (is_zero_ether_addr(data->ap_addr.sa_data)) {
+ /* the bssid we have is no longer fixed */
+ mac->associnfo.bssfixed = 0;
} else {
if (!memcmp(mac->associnfo.bssid, data->ap_addr.sa_data, ETH_ALEN)) {
- if (mac->associnfo.associating || mac->associated) {
+ if (mac->associnfo.associating || mac->associnfo.associated) {
/* bssid unchanged and associated or associating - just return */
goto out;
}
} else {
/* copy new value in data->ap_addr.sa_data to bssid */
memcpy(mac->associnfo.bssid, data->ap_addr.sa_data, ETH_ALEN);
- }
+ }
+ /* tell the other code that this bssid should be used no matter what */
+ mac->associnfo.bssfixed = 1;
/* queue associate if new bssid or (old one again and not associated) */
- queue_work(mac->workqueue,&mac->associnfo.work);
+ schedule_delayed_work(&mac->associnfo.work, 0);
}
-out:
- spin_unlock_irqrestore(&mac->lock, flags);
+ out:
+ mutex_unlock(&mac->associnfo.mutex);
+
return 0;
}
EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_wap);
int err = 0;
char *buf;
int i;
-
+
+ mutex_lock(&mac->associnfo.mutex);
spin_lock_irqsave(&mac->lock, flags);
/* bleh. shouldn't be locked for that kmalloc... */
memcpy(mac->wpa.IE, extra, wrqu->data.length);
dprintk(KERN_INFO PFX "generic IE set to ");
for (i=0;i<wrqu->data.length;i++)
- dprintk("%.2x", mac->wpa.IE[i]);
+ dprintk("%.2x", (u8)mac->wpa.IE[i]);
dprintk("\n");
mac->wpa.IElen = wrqu->data.length;
} else {
out:
spin_unlock_irqrestore(&mac->lock, flags);
+ mutex_unlock(&mac->associnfo.mutex);
+
return err;
}
EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_genie);
unsigned long flags;
int err = 0;
int space = wrqu->data.length;
-
+
+ mutex_lock(&mac->associnfo.mutex);
spin_lock_irqsave(&mac->lock, flags);
wrqu->data.length = 0;
err = -E2BIG;
}
spin_unlock_irqrestore(&mac->lock, flags);
+ mutex_lock(&mac->associnfo.mutex);
+
return err;
}
EXPORT_SYMBOL_GPL(ieee80211softmac_wx_get_genie);
+int
+ieee80211softmac_wx_set_mlme(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *wrqu,
+ char *extra)
+{
+ struct ieee80211softmac_device *mac = ieee80211_priv(dev);
+ struct iw_mlme *mlme = (struct iw_mlme *)extra;
+ u16 reason = cpu_to_le16(mlme->reason_code);
+ struct ieee80211softmac_network *net;
+ int err = -EINVAL;
+
+ mutex_lock(&mac->associnfo.mutex);
+
+ if (memcmp(mac->associnfo.bssid, mlme->addr.sa_data, ETH_ALEN)) {
+ printk(KERN_DEBUG PFX "wx_set_mlme: requested operation on net we don't use\n");
+ goto out;
+ }
+
+ switch (mlme->cmd) {
+ case IW_MLME_DEAUTH:
+ net = ieee80211softmac_get_network_by_bssid_locked(mac, mlme->addr.sa_data);
+ if (!net) {
+ printk(KERN_DEBUG PFX "wx_set_mlme: we should know the net here...\n");
+ goto out;
+ }
+ return ieee80211softmac_deauth_req(mac, net, reason);
+ case IW_MLME_DISASSOC:
+ ieee80211softmac_send_disassoc_req(mac, reason);
+ mac->associnfo.associated = 0;
+ mac->associnfo.associating = 0;
+ err = 0;
+ goto out;
+ default:
+ err = -EOPNOTSUPP;
+ }
+
+out:
+ mutex_unlock(&mac->associnfo.mutex);
+
+ return err;
+}
+EXPORT_SYMBOL_GPL(ieee80211softmac_wx_set_mlme);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff