Accumulative patch from commit b57b560034f1bb1ad3a3892228940dde97323c0e

b57b560 wpa_supplicant: Default to nl80211 instead of wext
ee28f08 hostapd: Add more messages for error paths
61d2ce2 hostapd: Reject configuration file without interface parameter
a8a7890 Clear extra_blacklist_count on FLUSH command
c646862 WPS ER: Allow UPnP interface to be forced
728d971 Use status code 17 (unable to handle new STA) on max-STA limitation
5e24dc8 Add dup_binstr() to help common binary string tasks
8b44ad7 Use os_zalloc() instead of os_malloc() + os_memset()
2c48211 FT RRB: Validate os_malloc() return value before using it
7ca902b Make vlan_file optional if dynamic_vlan is used
bdb112d Add bitfield routines
04382f7 NFC: Add no waiting and no multiple operations options for scripts
fe90496 WPS: Fix AP auto configuration on config token generation
28fcfb6 NFC: Increase wpa_cli command buffer size
8f7a6dd WPS NFC: Allow Device Password ID override for selected registrar
aaecb69 WPS: Use generic MAC Address attribute builder
9ccd916 P2P: Clean up channel--frequency conversion functions
e864c0a Use a common frequency to channel conversion function
02db75b FT: Reset FT flag upon STA deauthentication
7800d45 P2P: Set P2P_DEV_PEER_WAITING_RESPONSE from TX status callback
d78d3c6 EAP peer: Add check before calling getSessionId method
dd57970 Disable network temporarily on repeated connection failures

Change-Id: If8078d5c1ff40ea806e844543cf6f2bf9d24b7ac
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
diff --git a/src/ap/vlan_init.c b/src/ap/vlan_init.c
index 7b1a9e6..6390e8b 100644
--- a/src/ap/vlan_init.c
+++ b/src/ap/vlan_init.c
@@ -837,6 +837,27 @@
 	hapd->full_dynamic_vlan = full_dynamic_vlan_init(hapd);
 #endif /* CONFIG_FULL_DYNAMIC_VLAN */
 
+	if (hapd->conf->ssid.dynamic_vlan != DYNAMIC_VLAN_DISABLED &&
+	    !hapd->conf->vlan) {
+		/* dynamic vlans enabled but no (or empty) vlan_file given */
+		struct hostapd_vlan *vlan;
+		vlan = os_zalloc(sizeof(*vlan));
+		if (vlan == NULL) {
+			wpa_printf(MSG_ERROR, "Out of memory while assigning "
+				   "VLAN interfaces");
+			return -1;
+		}
+
+		vlan->vlan_id = VLAN_ID_WILDCARD;
+		os_snprintf(vlan->ifname, sizeof(vlan->ifname), "%s.#",
+			    hapd->conf->iface);
+		if (hapd->conf->vlan_tail)
+			hapd->conf->vlan_tail->next = vlan;
+		else
+			hapd->conf->vlan = vlan;
+		hapd->conf->vlan_tail = vlan;
+	}
+
 	if (vlan_dynamic_add(hapd, hapd->conf->vlan))
 		return -1;