diff --git a/net/wireless/Makefile b/net/wireless/Makefile
index d74cc77fa57a9f49113255b479bc7c8a49532e41..3ecaa9179977c4576dfad88ccb5646056b7b2a9b 100644
--- a/net/wireless/Makefile
+++ b/net/wireless/Makefile
@@ -5,7 +5,8 @@ obj-$(CONFIG_LIB80211_CRYPT_WEP) += lib80211_crypt_wep.o
obj-$(CONFIG_LIB80211_CRYPT_CCMP) += lib80211_crypt_ccmp.o
obj-$(CONFIG_LIB80211_CRYPT_TKIP) += lib80211_crypt_tkip.o
-cfg80211-y += core.o sysfs.o radiotap.o util.o reg.o scan.o nl80211.o mlme.o ibss.o sme.o
+cfg80211-y += core.o sysfs.o radiotap.o util.o reg.o scan.o nl80211.o
+cfg80211-y += mlme.o ibss.o sme.o chan.o
cfg80211-$(CONFIG_CFG80211_DEBUGFS) += debugfs.o
cfg80211-$(CONFIG_WIRELESS_EXT) += wext-compat.o wext-sme.o
diff --git a/net/wireless/chan.c b/net/wireless/chan.c
new file mode 100644
index 0000000000000000000000000000000000000000..bc00c9a06b3d4ded2e1110e9140da09930c2c755
--- /dev/null
+++ b/net/wireless/chan.c
@@ -0,0 +1,88 @@
+/*
+ * This file contains helper code to handle channel
+ * settings and keeping track of what is possible at
+ * any point in time.
+ *
+ * Copyright 2009 Johannes Berg <johannes@sipsolutions.net>
+ */
+
+#include <net/cfg80211.h>
+#include "core.h"
+
+struct ieee80211_channel *
+rdev_fixed_channel(struct cfg80211_registered_device *rdev,
+ struct wireless_dev *for_wdev)
+{
+ struct wireless_dev *wdev;
+ struct ieee80211_channel *result = NULL;
+
+ WARN_ON(!mutex_is_locked(&rdev->devlist_mtx));
+
+ list_for_each_entry(wdev, &rdev->netdev_list, list) {
+ if (wdev == for_wdev)
+ continue;
+
+ /*
+ * Lock manually to tell lockdep about allowed
+ * nesting here if for_wdev->mtx is held already.
+ * This is ok as it's all under the rdev devlist
+ * mutex and as such can only be done once at any
+ * given time.
+ */
+ mutex_lock_nested(&wdev->mtx, SINGLE_DEPTH_NESTING);
+ if (wdev->current_bss)
+ result = wdev->current_bss->pub.channel;
+ wdev_unlock(wdev);
+
+ if (result)
+ break;
+ }
+
+ return result;
+}
+
+int rdev_set_freq(struct cfg80211_registered_device *rdev,
+ int freq, enum nl80211_channel_type channel_type)
+{
+ struct ieee80211_channel *chan;
+ struct ieee80211_sta_ht_cap *ht_cap;
+ int result;
+
+ if (rdev_fixed_channel(rdev, NULL))
+ return -EBUSY;
+
+ if (!rdev->ops->set_channel)
+ return -EOPNOTSUPP;
+
+ chan = ieee80211_get_channel(&rdev->wiphy, freq);
+
+ /* Primary channel not allowed */
+ if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
+ return -EINVAL;
+
+ if (channel_type == NL80211_CHAN_HT40MINUS &&
+ chan->flags & IEEE80211_CHAN_NO_HT40MINUS)
+ return -EINVAL;
+ else if (channel_type == NL80211_CHAN_HT40PLUS &&
+ chan->flags & IEEE80211_CHAN_NO_HT40PLUS)
+ return -EINVAL;
+
+ ht_cap = &rdev->wiphy.bands[chan->band]->ht_cap;
+
+ if (channel_type != NL80211_CHAN_NO_HT) {
+ if (!ht_cap->ht_supported)
+ return -EINVAL;
+
+ if (!(ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) ||
+ ht_cap->cap & IEEE80211_HT_CAP_40MHZ_INTOLERANT)
+ return -EINVAL;
+ }
+
+ result = rdev->ops->set_channel(&rdev->wiphy, chan, channel_type);
+ if (result)
+ return result;
+
+ rdev->channel = chan;
+
+ return 0;
+}
diff --git a/net/wireless/core.h b/net/wireless/core.h
index 325c17e6198c456ecc38f791b54b7636245cbca1..5696b95af9bedcee7cdd0175efd0807eacacf7ca 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -366,4 +366,10 @@ void cfg80211_sme_disassoc(struct net_device *dev, int idx);
void __cfg80211_scan_done(struct work_struct *wk);
void cfg80211_upload_connect_keys(struct wireless_dev *wdev);
+struct ieee80211_channel *
+rdev_fixed_channel(struct cfg80211_registered_device *rdev,
+ struct wireless_dev *for_wdev);
+int rdev_set_freq(struct cfg80211_registered_device *rdev,
+ int freq, enum nl80211_channel_type channel_type);
+
#endif /* __NET_WIRELESS_CORE_H */
diff --git a/net/wireless/ibss.c b/net/wireless/ibss.c
index 4d7a084b35e2e1d2e625e68dba241241fdb33dab..42840a01be7405185b5e00785837d5ed09e9cac8 100644
--- a/net/wireless/ibss.c
+++ b/net/wireless/ibss.c
@@ -78,10 +78,15 @@ int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
struct cfg80211_cached_keys *connkeys)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
+ struct ieee80211_channel *chan;
int err;
ASSERT_WDEV_LOCK(wdev);
+ chan = rdev_fixed_channel(rdev, wdev);
+ if (chan && chan != params->channel)
+ return -EBUSY;
+
if (wdev->ssid_len)
return -EALREADY;
@@ -112,9 +117,11 @@ int cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
struct wireless_dev *wdev = dev->ieee80211_ptr;
int err;
+ mutex_lock(&rdev->devlist_mtx);
wdev_lock(wdev);
err = __cfg80211_join_ibss(rdev, dev, params, connkeys);
wdev_unlock(wdev);
+ mutex_unlock(&rdev->devlist_mtx);
return err;
}
@@ -264,27 +271,32 @@ int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev,
int cfg80211_ibss_wext_siwfreq(struct net_device *dev,
struct iw_request_info *info,
- struct iw_freq *freq, char *extra)
+ struct iw_freq *wextfreq, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
- struct ieee80211_channel *chan;
- int err;
+ struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+ struct ieee80211_channel *chan = NULL;
+ int err, freq;
/* call only for ibss! */
if (WARN_ON(wdev->iftype != NL80211_IFTYPE_ADHOC))
return -EINVAL;
- if (!wiphy_to_dev(wdev->wiphy)->ops->join_ibss)
+ if (!rdev->ops->join_ibss)
return -EOPNOTSUPP;
- chan = cfg80211_wext_freq(wdev->wiphy, freq);
- if (chan && IS_ERR(chan))
- return PTR_ERR(chan);
+ freq = cfg80211_wext_freq(wdev->wiphy, wextfreq);
+ if (freq < 0)
+ return freq;
- if (chan &&
- (chan->flags & IEEE80211_CHAN_NO_IBSS ||
- chan->flags & IEEE80211_CHAN_DISABLED))
- return -EINVAL;
+ if (freq) {
+ chan = ieee80211_get_channel(wdev->wiphy, freq);
+ if (!chan)
+ return -EINVAL;
+ if (chan->flags & IEEE80211_CHAN_NO_IBSS ||
+ chan->flags & IEEE80211_CHAN_DISABLED)
+ return -EINVAL;
+ }
if (wdev->wext.ibss.channel == chan)
return 0;
@@ -292,8 +304,7 @@ int cfg80211_ibss_wext_siwfreq(struct net_device *dev,
wdev_lock(wdev);
err = 0;
if (wdev->ssid_len)
- err = __cfg80211_leave_ibss(wiphy_to_dev(wdev->wiphy),
- dev, true);
+ err = __cfg80211_leave_ibss(rdev, dev, true);
wdev_unlock(wdev);
if (err)
@@ -307,9 +318,11 @@ int cfg80211_ibss_wext_siwfreq(struct net_device *dev,
wdev->wext.ibss.channel_fixed = false;
}
+ mutex_lock(&rdev->devlist_mtx);
wdev_lock(wdev);
- err = cfg80211_ibss_wext_join(wiphy_to_dev(wdev->wiphy), wdev);
+ err = cfg80211_ibss_wext_join(rdev, wdev);
wdev_unlock(wdev);
+ mutex_unlock(&rdev->devlist_mtx);
return err;
}
@@ -347,6 +360,7 @@ int cfg80211_ibss_wext_siwessid(struct net_device *dev,
struct iw_point *data, char *ssid)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
+ struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
size_t len = data->length;
int err;
@@ -354,14 +368,13 @@ int cfg80211_ibss_wext_siwessid(struct net_device *dev,
if (WARN_ON(wdev->iftype != NL80211_IFTYPE_ADHOC))
return -EINVAL;
- if (!wiphy_to_dev(wdev->wiphy)->ops->join_ibss)
+ if (!rdev->ops->join_ibss)
return -EOPNOTSUPP;
wdev_lock(wdev);
err = 0;
if (wdev->ssid_len)
- err = __cfg80211_leave_ibss(wiphy_to_dev(wdev->wiphy),
- dev, true);
+ err = __cfg80211_leave_ibss(rdev, dev, true);
wdev_unlock(wdev);
if (err)
@@ -375,9 +388,11 @@ int cfg80211_ibss_wext_siwessid(struct net_device *dev,
memcpy(wdev->wext.ibss.ssid, ssid, len);
wdev->wext.ibss.ssid_len = len;
+ mutex_lock(&rdev->devlist_mtx);
wdev_lock(wdev);
- err = cfg80211_ibss_wext_join(wiphy_to_dev(wdev->wiphy), wdev);
+ err = cfg80211_ibss_wext_join(rdev, wdev);
wdev_unlock(wdev);
+ mutex_unlock(&rdev->devlist_mtx);
return err;
}
@@ -414,6 +429,7 @@ int cfg80211_ibss_wext_siwap(struct net_device *dev,
struct sockaddr *ap_addr, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
+ struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
u8 *bssid = ap_addr->sa_data;
int err;
@@ -421,7 +437,7 @@ int cfg80211_ibss_wext_siwap(struct net_device *dev,
if (WARN_ON(wdev->iftype != NL80211_IFTYPE_ADHOC))
return -EINVAL;
- if (!wiphy_to_dev(wdev->wiphy)->ops->join_ibss)
+ if (!rdev->ops->join_ibss)
return -EOPNOTSUPP;
if (ap_addr->sa_family != ARPHRD_ETHER)
@@ -443,8 +459,7 @@ int cfg80211_ibss_wext_siwap(struct net_device *dev,
wdev_lock(wdev);
err = 0;
if (wdev->ssid_len)
- err = __cfg80211_leave_ibss(wiphy_to_dev(wdev->wiphy),
- dev, true);
+ err = __cfg80211_leave_ibss(rdev, dev, true);
wdev_unlock(wdev);
if (err)
@@ -456,9 +471,11 @@ int cfg80211_ibss_wext_siwap(struct net_device *dev,
} else
wdev->wext.ibss.bssid = NULL;
+ mutex_lock(&rdev->devlist_mtx);
wdev_lock(wdev);
- err = cfg80211_ibss_wext_join(wiphy_to_dev(wdev->wiphy), wdev);
+ err = cfg80211_ibss_wext_join(rdev, wdev);
wdev_unlock(wdev);
+ mutex_unlock(&rdev->devlist_mtx);
return err;
}
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 0cd548267d4a717a11e636dce9d548dd03ebd7ea..2ff7376f35a3aa032fc07ec31e8928f5574e8b08 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -701,15 +701,8 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
- struct ieee80211_channel *chan;
- struct ieee80211_sta_ht_cap *ht_cap;
u32 freq;
- if (!rdev->ops->set_channel) {
- result = -EOPNOTSUPP;
- goto bad_res;
- }
-
result = -EINVAL;
if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
@@ -723,42 +716,12 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
}
freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
- chan = ieee80211_get_channel(&rdev->wiphy, freq);
-
- /* Primary channel not allowed */
- if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
- goto bad_res;
-
- if (channel_type == NL80211_CHAN_HT40MINUS &&
- (chan->flags & IEEE80211_CHAN_NO_HT40MINUS))
- goto bad_res;
- else if (channel_type == NL80211_CHAN_HT40PLUS &&
- (chan->flags & IEEE80211_CHAN_NO_HT40PLUS))
- goto bad_res;
-
- /*
- * At this point we know if that if HT40 was requested
- * we are allowed to use it and the extension channel
- * exists.
- */
- ht_cap = &rdev->wiphy.bands[chan->band]->ht_cap;
-
- /* no HT capabilities or intolerant */
- if (channel_type != NL80211_CHAN_NO_HT) {
- if (!ht_cap->ht_supported)
- goto bad_res;
- if (!(ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) ||
- (ht_cap->cap & IEEE80211_HT_CAP_40MHZ_INTOLERANT))
- goto bad_res;
- }
-
- result = rdev->ops->set_channel(&rdev->wiphy, chan,
- channel_type);
+ mutex_lock(&rdev->devlist_mtx);
+ result = rdev_set_freq(rdev, freq, channel_type);
+ mutex_unlock(&rdev->devlist_mtx);
if (result)
goto bad_res;
-
- rdev->channel = chan;
}
changed = 0;
@@ -3453,7 +3416,7 @@ static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
struct cfg80211_registered_device *rdev;
struct net_device *dev;
struct cfg80211_crypto_settings crypto;
- struct ieee80211_channel *chan;
+ struct ieee80211_channel *chan, *fixedchan;
const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
int err, ssid_len, ie_len = 0;
bool use_mfp = false;
@@ -3496,6 +3459,15 @@ static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
goto out;
}
+ mutex_lock(&rdev->devlist_mtx);
+ fixedchan = rdev_fixed_channel(rdev, NULL);
+ if (fixedchan && chan != fixedchan) {
+ err = -EBUSY;
+ mutex_unlock(&rdev->devlist_mtx);
+ goto out;
+ }
+ mutex_unlock(&rdev->devlist_mtx);
+
ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
diff --git a/net/wireless/sme.c b/net/wireless/sme.c
index 340934f714b2df619bddda570c013476ea760e8d..219c3bc2c37d3c1a3bf88a0b5aae1b11751d2602 100644
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -256,9 +256,11 @@ void cfg80211_sme_scan_done(struct net_device *dev)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
+ mutex_lock(&wiphy_to_dev(wdev->wiphy)->devlist_mtx);
wdev_lock(wdev);
__cfg80211_sme_scan_done(dev);
wdev_unlock(wdev);
+ mutex_unlock(&wiphy_to_dev(wdev->wiphy)->devlist_mtx);
}
void cfg80211_sme_rx_auth(struct net_device *dev,
@@ -644,6 +646,7 @@ int __cfg80211_connect(struct cfg80211_registered_device *rdev,
struct cfg80211_cached_keys *connkeys)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
+ struct ieee80211_channel *chan;
int err;
ASSERT_WDEV_LOCK(wdev);
@@ -651,6 +654,10 @@ int __cfg80211_connect(struct cfg80211_registered_device *rdev,
if (wdev->sme_state != CFG80211_SME_IDLE)
return -EALREADY;
+ chan = rdev_fixed_channel(rdev, wdev);
+ if (chan && chan != connect->channel)
+ return -EBUSY;
+
if (WARN_ON(wdev->connect_keys)) {
kfree(wdev->connect_keys);
wdev->connect_keys = NULL;
@@ -785,9 +792,11 @@ int cfg80211_connect(struct cfg80211_registered_device *rdev,
{
int err;
+ mutex_lock(&rdev->devlist_mtx);
wdev_lock(dev->ieee80211_ptr);
err = __cfg80211_connect(rdev, dev, connect, connkeys);
wdev_unlock(dev->ieee80211_ptr);
+ mutex_unlock(&rdev->devlist_mtx);
return err;
}
diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c
index e4e90e249bab12a1fc0d6317cf356518b9b1428a..17648dc79867f98523be4f358bf93f0793194e08 100644
--- a/net/wireless/wext-compat.c
+++ b/net/wireless/wext-compat.c
@@ -267,39 +267,26 @@ EXPORT_SYMBOL_GPL(cfg80211_wext_giwrange);
* @wiphy: the wiphy
* @freq: the wext freq encoding
*
- * Returns a channel, %NULL for auto, or an ERR_PTR for errors!
+ * Returns a frequency, or a negative error code, or 0 for auto.
*/
-struct ieee80211_channel *cfg80211_wext_freq(struct wiphy *wiphy,
- struct iw_freq *freq)
+int cfg80211_wext_freq(struct wiphy *wiphy, struct iw_freq *freq)
{
- struct ieee80211_channel *chan;
- int f;
-
/*
- * Parse frequency - return NULL for auto and
+ * Parse frequency - return 0 for auto and
* -EINVAL for impossible things.
*/
if (freq->e == 0) {
if (freq->m < 0)
- return NULL;
- f = ieee80211_channel_to_frequency(freq->m);
+ return 0;
+ return ieee80211_channel_to_frequency(freq->m);
} else {
int i, div = 1000000;
for (i = 0; i < freq->e; i++)
div /= 10;
if (div <= 0)
- return ERR_PTR(-EINVAL);
- f = freq->m / div;
+ return -EINVAL;
+ return freq->m / div;
}
-
- /*
- * Look up channel struct and return -EINVAL when
- * it cannot be found.
- */
- chan = ieee80211_get_channel(wiphy, f);
- if (!chan)
- return ERR_PTR(-EINVAL);
- return chan;
}
int cfg80211_wext_siwrts(struct net_device *dev,
@@ -761,33 +748,29 @@ EXPORT_SYMBOL_GPL(cfg80211_wext_giwencode);
int cfg80211_wext_siwfreq(struct net_device *dev,
struct iw_request_info *info,
- struct iw_freq *freq, char *extra)
+ struct iw_freq *wextfreq, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
- struct ieee80211_channel *chan;
- int err;
+ int freq, err;
switch (wdev->iftype) {
case NL80211_IFTYPE_STATION:
- return cfg80211_mgd_wext_siwfreq(dev, info, freq, extra);
+ return cfg80211_mgd_wext_siwfreq(dev, info, wextfreq, extra);
case NL80211_IFTYPE_ADHOC:
- return cfg80211_ibss_wext_siwfreq(dev, info, freq, extra);
+ return cfg80211_ibss_wext_siwfreq(dev, info, wextfreq, extra);
default:
- chan = cfg80211_wext_freq(wdev->wiphy, freq);
- if (!chan)
+ freq = cfg80211_wext_freq(wdev->wiphy, wextfreq);
+ if (freq < 0)
+ return freq;
+ if (freq == 0)
return -EINVAL;
- if (IS_ERR(chan))
- return PTR_ERR(chan);
- err = rdev->ops->set_channel(wdev->wiphy, chan,
- NL80211_CHAN_NO_HT);
- if (err)
- return err;
- rdev->channel = chan;
- return 0;
+ mutex_lock(&rdev->devlist_mtx);
+ err = rdev_set_freq(rdev, freq, NL80211_CHAN_NO_HT);
+ mutex_unlock(&rdev->devlist_mtx);
+ return err;
}
}
-EXPORT_SYMBOL_GPL(cfg80211_wext_siwfreq);
int cfg80211_wext_giwfreq(struct net_device *dev,
struct iw_request_info *info,
diff --git a/net/wireless/wext-compat.h b/net/wireless/wext-compat.h
index 9a37747495890548621dcf0c5a851e4e4fe66eb3..20b3daef69643586d2508deca0f1f52c1ebe6ac0 100644
--- a/net/wireless/wext-compat.h
+++ b/net/wireless/wext-compat.h
@@ -42,8 +42,7 @@ int cfg80211_mgd_wext_giwessid(struct net_device *dev,
struct iw_request_info *info,
struct iw_point *data, char *ssid);
-struct ieee80211_channel *cfg80211_wext_freq(struct wiphy *wiphy,
- struct iw_freq *freq);
+int cfg80211_wext_freq(struct wiphy *wiphy, struct iw_freq *freq);
extern const struct iw_handler_def cfg80211_wext_handler;
diff --git a/net/wireless/wext-sme.c b/net/wireless/wext-sme.c
index e4a054aceb5a803400dc9218fd301f4885eff8a9..fe1a536391226acf727625aa8dba2be76f01497a 100644
--- a/net/wireless/wext-sme.c
+++ b/net/wireless/wext-sme.c
@@ -52,25 +52,31 @@ int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
int cfg80211_mgd_wext_siwfreq(struct net_device *dev,
struct iw_request_info *info,
- struct iw_freq *freq, char *extra)
+ struct iw_freq *wextfreq, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
- struct ieee80211_channel *chan;
- int err;
+ struct ieee80211_channel *chan = NULL;
+ int err, freq;
/* call only for station! */
if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION))
return -EINVAL;
- chan = cfg80211_wext_freq(wdev->wiphy, freq);
- if (chan && IS_ERR(chan))
- return PTR_ERR(chan);
+ freq = cfg80211_wext_freq(wdev->wiphy, wextfreq);
+ if (freq < 0)
+ return freq;
- if (chan && (chan->flags & IEEE80211_CHAN_DISABLED))
- return -EINVAL;
+ if (freq) {
+ chan = ieee80211_get_channel(wdev->wiphy, freq);
+ if (!chan)
+ return -EINVAL;
+ if (chan->flags & IEEE80211_CHAN_DISABLED)
+ return -EINVAL;
+ }
cfg80211_lock_rdev(rdev);
+ mutex_lock(&rdev->devlist_mtx);
wdev_lock(wdev);
if (wdev->sme_state != CFG80211_SME_IDLE) {
@@ -84,9 +90,8 @@ int cfg80211_mgd_wext_siwfreq(struct net_device *dev,
/* if SSID set, we'll try right again, avoid event */
if (wdev->wext.connect.ssid_len)
event = false;
- err = __cfg80211_disconnect(wiphy_to_dev(wdev->wiphy),
- dev, WLAN_REASON_DEAUTH_LEAVING,
- event);
+ err = __cfg80211_disconnect(rdev, dev,
+ WLAN_REASON_DEAUTH_LEAVING, event);
if (err)
goto out;
}
@@ -95,17 +100,15 @@ int cfg80211_mgd_wext_siwfreq(struct net_device *dev,
wdev->wext.connect.channel = chan;
/* SSID is not set, we just want to switch channel */
- if (wdev->wext.connect.ssid_len && chan) {
- err = -EOPNOTSUPP;
- if (rdev->ops->set_channel)
- err = rdev->ops->set_channel(wdev->wiphy, chan,
- NL80211_CHAN_NO_HT);
+ if (chan && !wdev->wext.connect.ssid_len) {
+ err = rdev_set_freq(rdev, freq, NL80211_CHAN_NO_HT);
goto out;
}
- err = cfg80211_mgd_wext_connect(wiphy_to_dev(wdev->wiphy), wdev);
+ err = cfg80211_mgd_wext_connect(rdev, wdev);
out:
wdev_unlock(wdev);
+ mutex_unlock(&rdev->devlist_mtx);
cfg80211_unlock_rdev(rdev);
return err;
}
@@ -143,6 +146,7 @@ int cfg80211_mgd_wext_siwessid(struct net_device *dev,
struct iw_point *data, char *ssid)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
+ struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
size_t len = data->length;
int err;
@@ -157,7 +161,8 @@ int cfg80211_mgd_wext_siwessid(struct net_device *dev,
if (len > 0 && ssid[len - 1] == '\0')
len--;
- cfg80211_lock_rdev(wiphy_to_dev(wdev->wiphy));
+ cfg80211_lock_rdev(rdev);
+ mutex_lock(&rdev->devlist_mtx);
wdev_lock(wdev);
err = 0;
@@ -173,9 +178,8 @@ int cfg80211_mgd_wext_siwessid(struct net_device *dev,
/* if SSID set now, we'll try to connect, avoid event */
if (len)
event = false;
- err = __cfg80211_disconnect(wiphy_to_dev(wdev->wiphy),
- dev, WLAN_REASON_DEAUTH_LEAVING,
- event);
+ err = __cfg80211_disconnect(rdev, dev,
+ WLAN_REASON_DEAUTH_LEAVING, event);
if (err)
goto out;
}
@@ -186,10 +190,11 @@ int cfg80211_mgd_wext_siwessid(struct net_device *dev,
wdev->wext.connect.crypto.control_port = false;
- err = cfg80211_mgd_wext_connect(wiphy_to_dev(wdev->wiphy), wdev);
+ err = cfg80211_mgd_wext_connect(rdev, wdev);
out:
wdev_unlock(wdev);
- cfg80211_unlock_rdev(wiphy_to_dev(wdev->wiphy));
+ mutex_unlock(&rdev->devlist_mtx);
+ cfg80211_unlock_rdev(rdev);
return err;
}
@@ -230,6 +235,7 @@ int cfg80211_mgd_wext_siwap(struct net_device *dev,
struct sockaddr *ap_addr, char *extra)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
+ struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
u8 *bssid = ap_addr->sa_data;
int err;
@@ -244,7 +250,8 @@ int cfg80211_mgd_wext_siwap(struct net_device *dev,
if (is_zero_ether_addr(bssid) || is_broadcast_ether_addr(bssid))
bssid = NULL;
- cfg80211_lock_rdev(wiphy_to_dev(wdev->wiphy));
+ cfg80211_lock_rdev(rdev);
+ mutex_lock(&rdev->devlist_mtx);
wdev_lock(wdev);
if (wdev->sme_state != CFG80211_SME_IDLE) {
@@ -258,9 +265,8 @@ int cfg80211_mgd_wext_siwap(struct net_device *dev,
compare_ether_addr(bssid, wdev->wext.connect.bssid) == 0)
goto out;
- err = __cfg80211_disconnect(wiphy_to_dev(wdev->wiphy),
- dev, WLAN_REASON_DEAUTH_LEAVING,
- false);
+ err = __cfg80211_disconnect(rdev, dev,
+ WLAN_REASON_DEAUTH_LEAVING, false);
if (err)
goto out;
}
@@ -271,10 +277,11 @@ int cfg80211_mgd_wext_siwap(struct net_device *dev,
} else
wdev->wext.connect.bssid = NULL;
- err = cfg80211_mgd_wext_connect(wiphy_to_dev(wdev->wiphy), wdev);
+ err = cfg80211_mgd_wext_connect(rdev, wdev);
out:
wdev_unlock(wdev);
- cfg80211_unlock_rdev(wiphy_to_dev(wdev->wiphy));
+ mutex_unlock(&rdev->devlist_mtx);
+ cfg80211_unlock_rdev(rdev);
return err;
}