tests: Wait for scan to complete on all interfaces in reset()

When WpaSupplicant executes reset() it waits until all the ongoing scans
are completed. However, it checks the status of the wlanX interface
only. If a dedicated P2P device interface is used, scan may be still
running on the P2P Device interface, e.g., due to P2P_FIND. This might
affect subsequent tests.

Fix this by waiting until the scan is done both on wlanX and P2P
Device interfaces.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>

tests/hwsim/wpasupplicant.py

@@ -138,8 +138,11 @@ class WpaSupplicant:
 
         iter = 0
         while iter < 60:
-            state = self.get_driver_status_field("scan_state")
-            if "SCAN_STARTED" in state or "SCAN_REQUESTED" in state:
+            state1 = self.get_driver_status_field("scan_state")
+            p2pdev = "p2p-dev-" + self.ifname
+            state2 = self.get_driver_status_field("scan_state", ifname=p2pdev)
+            states = str(state1) + " " + str(state2)
+            if "SCAN_STARTED" in states or "SCAN_REQUESTED" in states:
                 logger.info(self.ifname + ": Waiting for scan operation to complete before continuing")
                 time.sleep(1)
             else:
@@ -354,8 +357,11 @@ class WpaSupplicant:
             return vals[field]
         return None
 
-    def get_driver_status(self):
-        res = self.request("STATUS-DRIVER")
+    def get_driver_status(self, ifname=None):
+        if ifname is None:
+            res = self.request("STATUS-DRIVER")
+        else:
+            res = self.global_request("IFNAME=%s STATUS-DRIVER" % ifname)
         lines = res.splitlines()
         vals = dict()
         for l in lines:
@@ -367,8 +373,8 @@ class WpaSupplicant:
             vals[name] = value
         return vals
 
-    def get_driver_status_field(self, field):
-        vals = self.get_driver_status()
+    def get_driver_status_field(self, field, ifname=None):
+        vals = self.get_driver_status(ifname)
         if field in vals:
             return vals[field]
         return None