From: Jouni Malinen <jouni@qca.qualcomm.com>
Date: Mon, 29 Sep 2014 16:58:26 +0000 (+0300)
Subject: TDLS: Filter AID value properly for VHT peers
X-Git-Tag: hostap_2_3~48
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d76426c3aa7f7cf1d1c01577fe0e7499a8a67ec1;p=thirdparty%2Fhostap.git

TDLS: Filter AID value properly for VHT peers

IEEE 802.11 standard sends AID in a field that is defined in a bit
strange way to set two MSBs to ones. That is not the real AID and those
extra bits need to be filtered from the value before passing this to the
driver.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
---

diff --git a/src/rsn_supp/wpa_ie.c b/src/rsn_supp/wpa_ie.c
index 2329033ea..93e8cf692 100644
--- a/src/rsn_supp/wpa_ie.c
+++ b/src/rsn_supp/wpa_ie.c
@@ -549,7 +549,7 @@ int wpa_supplicant_parse_ies(const u8 *buf, size_t len,
 			ie->ht_capabilities_len = pos[1];
 		} else if (*pos == WLAN_EID_VHT_AID) {
 			if (pos[1] >= 2)
-				ie->aid = WPA_GET_LE16(pos + 2);
+				ie->aid = WPA_GET_LE16(pos + 2) & 0x3fff;
 		} else if (*pos == WLAN_EID_VHT_CAP) {
 			ie->vht_capabilities = pos + 2;
 			ie->vht_capabilities_len = pos[1];