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WPS: Wait for EAPOL-Start unless WPS 2.0 station as workaround

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Extend the code that waits for the station to send EAPOL-Start before
initiating EAPOL authenticator operations to cover the case where the
station includes WPS IE in (Re)Association Request frame if that IE
does not include support for WPS 2.0. While this should not really
be needed, this may help with some deployed WPS 1.0 stations that do
not support EAPOL operations correctly and may get confused of the
EAP-Request/Identity packets that would show up twice if EAPOL-Start
is transmitted.
This commit is contained in:
Jouni Malinen 2011-08-28 19:16:59 +03:00
parent fb91db5639
commit 17f6b90056
7 changed files with 68 additions and 17 deletions
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6
src/ap/ieee802_11.c
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@ -701,7 +701,7 @@ static u16 check_assoc_ies(struct hostapd_data *hapd, struct sta_info *sta,
}
#ifdef CONFIG_WPS
sta->flags &= ~(WLAN_STA_WPS | WLAN_STA_MAYBE_WPS);
sta->flags &= ~(WLAN_STA_WPS | WLAN_STA_MAYBE_WPS | WLAN_STA_WPS2);
if (hapd->conf->wps_state && elems.wps_ie) {
wpa_printf(MSG_DEBUG, "STA included WPS IE in (Re)Association "
"Request - assume WPS is used");
@ -709,6 +709,10 @@ static u16 check_assoc_ies(struct hostapd_data *hapd, struct sta_info *sta,
wpabuf_free(sta->wps_ie);
sta->wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len,
WPS_IE_VENDOR_TYPE);
if (sta->wps_ie && wps_is_20(sta->wps_ie)) {
wpa_printf(MSG_DEBUG, "WPS: STA supports WPS 2.0");
sta->flags |= WLAN_STA_WPS2;
}
wpa_ie = NULL;
wpa_ie_len = 0;
if (sta->wps_ie && wps_validate_assoc_req(sta->wps_ie) < 0) {