diff options
| -rw-r--r-- | net/wireless/Makefile | 3 | ||||
| -rw-r--r-- | net/wireless/chan.c | 88 | ||||
| -rw-r--r-- | net/wireless/core.h | 6 | ||||
| -rw-r--r-- | net/wireless/ibss.c | 61 | ||||
| -rw-r--r-- | net/wireless/nl80211.c | 54 | ||||
| -rw-r--r-- | net/wireless/sme.c | 9 | ||||
| -rw-r--r-- | net/wireless/wext-compat.c | 55 | ||||
| -rw-r--r-- | net/wireless/wext-compat.h | 3 | ||||
| -rw-r--r-- | net/wireless/wext-sme.c | 65 |
9 files changed, 213 insertions, 131 deletions
diff --git a/net/wireless/Makefile b/net/wireless/Makefile index d74cc77..3ecaa91 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 0000000..bc00c9a --- /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 325c17e..5696b95 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 4d7a084..42840a0 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 0cd5482..2ff7376 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 340934f..219c3bc 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 e4e90e2..17648dc 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 9a37747..20b3dae 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 e4a054a..fe1a536 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; } |