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nl80211: Register for SAE Authentication frames more strictly

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If the driver requires external SAE authentication, it would result in
registration for all Authentication frames, so even non-SAE
Authentication frames might be forwarded to user space instead of being
handled internally. Fix this by using a more strict match pattern,
limiting the registration to the SAE authentication algorithm only.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
This commit is contained in:
Andrei Otcheretianski 2020-02-24 11:14:26 +02:00 committed by Jouni Malinen
parent 7a9c367225
commit d046f2a9f9
1 changed files with 7 additions and 5 deletions
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12
src/drivers/driver_nl80211.c
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@ -2182,6 +2182,7 @@ static int nl80211_init_connect_handle(struct i802_bss *bss)
static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss)
{
struct wpa_driver_nl80211_data *drv = bss->drv;
u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_AUTH << 4);
int ret = 0;
if (nl80211_alloc_mgmt_handle(bss))
@ -2189,13 +2190,14 @@ static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss)
wpa_printf(MSG_DEBUG, "nl80211: Subscribe to mgmt frames with non-AP "
"handle %p", bss->nl_mgmt);
if (drv->nlmode == NL80211_IFTYPE_ADHOC ||
((drv->capa.flags & WPA_DRIVER_FLAGS_SAE) &&
!(drv->capa.flags & WPA_DRIVER_FLAGS_SME))) {
u16 type = (WLAN_FC_TYPE_MGMT << 2) | (WLAN_FC_STYPE_AUTH << 4);
if (drv->nlmode == NL80211_IFTYPE_ADHOC) {
/* register for any AUTH message */
nl80211_register_frame(bss, bss->nl_mgmt, type, NULL, 0);
} else if ((drv->capa.flags & WPA_DRIVER_FLAGS_SAE) &&
!(drv->capa.flags & WPA_DRIVER_FLAGS_SME)) {
/* register for SAE Authentication frames */
nl80211_register_frame(bss, bss->nl_mgmt, type,
(u8 *) "\x03\x00", 2);
}
#ifdef CONFIG_INTERWORKING