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mac80211: don't connect to IBSS network with different privacy

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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>
This commit is contained in:
Johannes Berg 2009-05-12 20:47:32 +02:00 committed by John W. Linville
parent e0502de6fe
commit e0d61887c2
1 changed files with 8 additions and 2 deletions
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10
net/mac80211/ibss.c
View file

@ -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)