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Update STA flags to the driver immediately on disconnection

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hostapd (and wpa_supplicant in AP mode) was internally updating the STA
flags on disconnection cases to remove authorization and association.
However, some cases did not result in immediate update of the driver STA
entry. Update all such cases to send out the update to the driver as
well to reduce risk of race conditions where new frames might be
accepted for TX or RX after the port authorization or association has
been lost and configured keys are removed.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
This commit is contained in:
Jouni Malinen 2020-03-18 12:41:46 +02:00 • committed by Jouni Malinen
parent b766ac488f
commit b7275a8142
4 changed files with 10 additions and 2 deletions
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2
src/ap/ieee802_11.c
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@ -4502,6 +4502,7 @@ static void handle_disassoc(struct hostapd_data *hapd,
ap_sta_set_authorized(hapd, sta, 0);
sta->last_seq_ctrl = WLAN_INVALID_MGMT_SEQ;
sta->flags &= ~(WLAN_STA_ASSOC | WLAN_STA_ASSOC_REQ_OK);
hostapd_set_sta_flags(hapd, sta);
wpa_auth_sm_event(sta->wpa_sm, WPA_DISASSOC);
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "disassociated");
@ -4568,6 +4569,7 @@ static void handle_deauth(struct hostapd_data *hapd,
sta->last_seq_ctrl = WLAN_INVALID_MGMT_SEQ;
sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC |
WLAN_STA_ASSOC_REQ_OK);
hostapd_set_sta_flags(hapd, sta);
wpa_auth_sm_event(sta->wpa_sm, WPA_DEAUTH);
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG, "deauthenticated");