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nl80211: Report disassociated STA / lost peer for the correct BSS

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We shouldn't use drv->ctx as it always points to the first BSS. When
using FullMAC driver with multi-BSS support it resulted in incorrect
treating nl80211 events. I noticed with with brcmfmac and BCM43602.

Before my change I was getting "disassociated" on a wrong interface:
wlan0-1: STA 78:d6:f0:00:11:22 IEEE 802.11: associated
wlan0-1: STA 78:d6:f0:00:11:22 WPA: pairwise key handshake completed (RSN)
wlan0: STA 78:d6:f0:00:11:22 IEEE 802.11: disassociated

With this patch it works as expected:
wlan0-1: STA 78:d6:f0:00:11:22 IEEE 802.11: associated
wlan0-1: STA 78:d6:f0:00:11:22 WPA: pairwise key handshake completed (RSN)
wlan0-1: STA 78:d6:f0:00:11:22 IEEE 802.11: disassociated

This doesn't apply to hostapd dealing with SoftMAC drivers when handling
AP SME & MLME is done it hostapd not the firmware.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
This commit is contained in:
Rafał Miłecki 2016-01-11 19:31:50 +01:00 committed by Jouni Malinen
parent 38af0423cb
commit 4653ceb750
1 changed files with 4 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
src/drivers/driver_nl80211_event.c
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@ -1181,6 +1181,7 @@ static void nl80211_new_station_event(struct wpa_driver_nl80211_data *drv,
static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv,
struct i802_bss *bss,
struct nlattr **tb)
{
u8 *addr;
@ -1193,7 +1194,7 @@ static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv,
MAC2STR(addr));
if (is_ap_interface(drv->nlmode) && drv->device_ap_sme) {
drv_event_disassoc(drv->ctx, addr);
drv_event_disassoc(bss->ctx, addr);
return;
}
@ -1202,7 +1203,7 @@ static void nl80211_del_station_event(struct wpa_driver_nl80211_data *drv,
os_memset(&data, 0, sizeof(data));
os_memcpy(data.ibss_peer_lost.peer, addr, ETH_ALEN);
wpa_supplicant_event(drv->ctx, EVENT_IBSS_PEER_LOST, &data);
wpa_supplicant_event(bss->ctx, EVENT_IBSS_PEER_LOST, &data);
}
@ -2155,7 +2156,7 @@ static void do_process_drv_event(struct i802_bss *bss, int cmd,
nl80211_new_station_event(drv, bss, tb);
break;
case NL80211_CMD_DEL_STATION:
nl80211_del_station_event(drv, tb);
nl80211_del_station_event(drv, bss, tb);
break;
case NL80211_CMD_SET_REKEY_OFFLOAD:
nl80211_rekey_offload_event(drv, tb);