nl80211: Add support for sta_add flags_mask

Signed-off-by: Javier Lopez <jlopex@gmail.com>
Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: Jason Mobarak <x@jason.mobarak.name>
Signed-off-by: Bob Copeland <me@bobcopeland.com>

src/drivers/driver.h

@@ -1124,6 +1124,7 @@ struct hostapd_sta_add_params {
 	int vht_opmode_enabled;
 	u8 vht_opmode;
 	u32 flags; /* bitmask of WPA_STA_* flags */
+	u32 flags_mask; /* unset bits in flags */
 	int set; /* Set STA parameters instead of add */
 	u8 qosinfo;
 	const u8 *ext_capab;

src/drivers/driver_nl80211.c

@@ -7764,8 +7764,8 @@ static int wpa_driver_nl80211_sta_add(void *priv,
 	}
 
 	os_memset(&upd, 0, sizeof(upd));
-	upd.mask = sta_flags_nl80211(params->flags);
-	upd.set = upd.mask;
+	upd.set = sta_flags_nl80211(params->flags);
+	upd.mask = upd.set | sta_flags_nl80211(params->flags_mask);
 	wpa_printf(MSG_DEBUG, "  * flags set=0x%x mask=0x%x",
 		   upd.set, upd.mask);
 	NLA_PUT(msg, NL80211_ATTR_STA_FLAGS2, sizeof(upd), &upd);