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Ignore Management frames while AP interface is not fully enabled

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It is possible for drivers to report received Management frames while AP
is going through initial setup (e.g., during ACS or DFS CAC). hostapd
and the driver is not yet ready for actually sending out responses to
such frames at this point and as such, it is better to explicitly ignore
such received frames rather than try to process them and have the
response (e.g., a Probe Response frame) getting dropped by the driver as
an invalid or getting out with some incorrect information.

Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2020-05-16 12:16:34 +03:00
parent c82535edd6
commit 5a04a76aa2
1 changed files with 5 additions and 0 deletions
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5
src/ap/ieee802_11.c
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@ -4858,6 +4858,11 @@ int ieee802_11_mgmt(struct hostapd_data *hapd, const u8 *buf, size_t len,
return 0; return 0;
} }
if (hapd->iface->state != HAPD_IFACE_ENABLED) {
wpa_printf(MSG_DEBUG, "MGMT: Ignore management frame while interface is not enabled (SA=" MACSTR " DA=" MACSTR " subtype=%u)",
MAC2STR(mgmt->sa), MAC2STR(mgmt->da), stype);
return 1;
}
if (stype == WLAN_FC_STYPE_PROBE_REQ) { if (stype == WLAN_FC_STYPE_PROBE_REQ) {
handle_probe_req(hapd, mgmt, len, ssi_signal); handle_probe_req(hapd, mgmt, len, ssi_signal);