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authorJohannes Berg <johannes@sipsolutions.net>2009-05-12 20:47:32 +0200
committerJohn W. Linville <linville@tuxdriver.com>2009-05-13 15:44:48 -0400
commite0d61887c2ee19bb63f6a8c0e2c149184e879501 (patch)
tree29b5a55ae747b0ea2e7446e2029e1d1ff268e38a /net
parente0502de6fe85b66ee51647eb75bc5af3c885d712 (diff)
mac80211: don't connect to IBSS network with different privacy
Even when we find an IBSS with the SSID we're looking for, we may not be able to connect to it because it has a key and we don't, or vice versa. Avoid such situations by checking the privacy capability bit. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net')
-rw-r--r--net/mac80211/ibss.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index aa537681f87..c94a695d848 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -499,6 +499,7 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
struct ieee80211_channel *chan = NULL;
const u8 *bssid = NULL;
int active_ibss;
+ u16 capability;
active_ibss = ieee80211_sta_active_ibss(sdata);
#ifdef CONFIG_MAC80211_IBSS_DEBUG
@@ -509,6 +510,10 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
if (active_ibss)
return;
+ capability = WLAN_CAPABILITY_IBSS;
+ if (sdata->default_key)
+ capability |= WLAN_CAPABILITY_PRIVACY;
+
if (ifibss->fixed_bssid)
bssid = ifibss->bssid;
if (ifibss->fixed_channel)
@@ -517,8 +522,9 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
bssid = ifibss->bssid;
bss = (void *)cfg80211_get_bss(local->hw.wiphy, chan, bssid,
ifibss->ssid, ifibss->ssid_len,
- WLAN_CAPABILITY_IBSS,
- WLAN_CAPABILITY_IBSS);
+ capability,
+ WLAN_CAPABILITY_IBSS |
+ WLAN_CAPABILITY_PRIVACY);
#ifdef CONFIG_MAC80211_IBSS_DEBUG
if (bss)