kpriv/linux-hardened
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

mac80211: fix ibss join with fixed-bssid

Browse source 
When fixed bssid is requested when joining an ibss network, incoming
beacons that match the configured bssid cause mac80211 to create new
sta entries, even before the ibss interface is in joined state.
When that happens, it fails to bring up the interface entirely, because
it checks for existing sta entries before joining.
This patch fixes this bug by refusing to create sta info entries before
the interface is fully operational.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Felix Fietkau 2009-12-20 19:07:09 +01:00 committed by John W. Linville
parent 659c8e5243
commit 2e10d330f8
1 changed files with 4 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
net/mac80211/ibss.c
View file

@ -382,6 +382,7 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
u8 *bssid,u8 *addr, u32 supp_rates)
{
struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
struct ieee80211_local *local = sdata->local;
struct sta_info *sta;
int band = local->hw.conf.channel->band;
@ -397,6 +398,9 @@ struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
return NULL;
}
if (ifibss->state == IEEE80211_IBSS_MLME_SEARCH)
return NULL;
if (compare_ether_addr(bssid, sdata->u.ibss.bssid))
return NULL;