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authorRajkumar Manoharan <rmanohar@qca.qualcomm.com>2011-09-15 17:40:50 +0530
committerJohn W. Linville <linville@tuxdriver.com>2011-09-20 14:43:48 -0400
commite30815016bbd0b5c3dcdc29f53e054b57938f1aa (patch)
tree2a7127363a6085b2fb3fbdf9045cce2ac2ee40d0 /net/wireless
parent4d8b61490c14a36efdee4a8bf523e26809df05ac (diff)
wireless: Do not allow disabled channel in scan request
cfg80211_conn_scan allows disabled channels at scan request. Hence probe request was seen at the disabled one. This patch ensures that disabled channel never be added into the scan request's channel list. Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/wireless')
-rw-r--r--net/wireless/sme.c19
1 files changed, 12 insertions, 7 deletions
diff --git a/net/wireless/sme.c b/net/wireless/sme.c
index dec0fa28372..6e86d5acf14 100644
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -110,17 +110,22 @@ static int cfg80211_conn_scan(struct wireless_dev *wdev)
else {
int i = 0, j;
enum ieee80211_band band;
+ struct ieee80211_supported_band *bands;
+ struct ieee80211_channel *channel;
for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
- if (!wdev->wiphy->bands[band])
+ bands = wdev->wiphy->bands[band];
+ if (!bands)
continue;
- for (j = 0; j < wdev->wiphy->bands[band]->n_channels;
- i++, j++)
- request->channels[i] =
- &wdev->wiphy->bands[band]->channels[j];
- request->rates[band] =
- (1 << wdev->wiphy->bands[band]->n_bitrates) - 1;
+ for (j = 0; j < bands->n_channels; j++) {
+ channel = &bands->channels[j];
+ if (channel->flags & IEEE80211_CHAN_DISABLED)
+ continue;
+ request->channels[i++] = channel;
+ }
+ request->rates[band] = (1 << bands->n_bitrates) - 1;
}
+ n_channels = i;
}
request->n_channels = n_channels;
request->ssids = (void *)&request->channels[n_channels];