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Diffstat (limited to 'net/mac80211/wext.c')
-rw-r--r--net/mac80211/wext.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index 8311bb24f9f3..a8bb8e31b1ec 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -290,14 +290,22 @@ static int ieee80211_ioctl_giwmode(struct net_device *dev,
return 0;
}
-int ieee80211_set_freq(struct ieee80211_local *local, int freqMHz)
+int ieee80211_set_freq(struct net_device *dev, int freqMHz)
{
int ret = -EINVAL;
struct ieee80211_channel *chan;
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
chan = ieee80211_get_channel(local->hw.wiphy, freqMHz);
if (chan && !(chan->flags & IEEE80211_CHAN_DISABLED)) {
+ if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS &&
+ chan->flags & IEEE80211_CHAN_NO_IBSS) {
+ printk(KERN_DEBUG "%s: IBSS not allowed on frequency "
+ "%d MHz\n", dev->name, chan->center_freq);
+ return ret;
+ }
local->oper_channel = chan;
if (local->sta_sw_scanning || local->sta_hw_scanning)
@@ -315,7 +323,6 @@ static int ieee80211_ioctl_siwfreq(struct net_device *dev,
struct iw_request_info *info,
struct iw_freq *freq, char *extra)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
if (sdata->vif.type == IEEE80211_IF_TYPE_STA)
@@ -329,14 +336,14 @@ static int ieee80211_ioctl_siwfreq(struct net_device *dev,
IEEE80211_STA_AUTO_CHANNEL_SEL;
return 0;
} else
- return ieee80211_set_freq(local,
+ return ieee80211_set_freq(dev,
ieee80211_channel_to_frequency(freq->m));
} else {
int i, div = 1000000;
for (i = 0; i < freq->e; i++)
div /= 10;
if (div > 0)
- return ieee80211_set_freq(local, freq->m / div);
+ return ieee80211_set_freq(dev, freq->m / div);
else
return -EINVAL;
}