tests: Support P2P group interfaces in hwsim remote tests

Start using the wpa_supplicant remote UDP interface for the control and
monitor sockets for P2P group interfaces so that P2P tests would work on
real hardware. Also have the group requests and events show in the test
log with the hostname and the interface name of the group interface.

Signed-off-by: Jonathan Afek <jonathanx.afek@intel.com>

tests/hwsim/wpasupplicant.py

@@ -23,6 +23,7 @@ class WpaSupplicant:
         self.group_ifname = None
         self.gctrl_mon = None
         self.host = remotehost.Host(hostname, ifname)
+        self._group_dbg = None
         if ifname:
             self.set_ifname(ifname, hostname, port)
             res = self.get_driver_status()
@@ -156,10 +157,26 @@ class WpaSupplicant:
             logger.debug(self.global_dbg + ifname + ": CTRL(global): " + cmd)
             return self.global_ctrl.request(cmd)
 
+    @property
+    def group_dbg(self):
+        if self._group_dbg is not None:
+            return self._group_dbg
+        if self.group_ifname is None:
+            raise Exception("Cannot have group_dbg without group_ifname")
+        if self.hostname is None:
+            self._group_dbg = self.group_ifname
+        else:
+            self._group_dbg = self.hostname + "/" + self.group_ifname
+        return self._group_dbg
+
     def group_request(self, cmd):
         if self.group_ifname and self.group_ifname != self.ifname:
-            logger.debug(self.group_ifname + ": CTRL: " + cmd)
-            gctrl = wpaspy.Ctrl(os.path.join(wpas_ctrl, self.group_ifname))
+            if self.hostname is None:
+                gctrl = wpaspy.Ctrl(os.path.join(wpas_ctrl, self.group_ifname))
+            else:
+                port = self.get_ctrl_iface_port(self.group_ifname)
+                gctrl = wpaspy.Ctrl(self.hostname, port)
+            logger.debug(self.group_dbg + ": CTRL(group): " + cmd)
             return gctrl.request(cmd)
         return self.request(cmd)
 
@@ -574,7 +591,12 @@ class WpaSupplicant:
         res['ifname'] = s[2]
         self.group_ifname = s[2]
         try:
-            self.gctrl_mon = wpaspy.Ctrl(os.path.join(wpas_ctrl, self.group_ifname))
+            if self.hostname is None:
+                self.gctrl_mon = wpaspy.Ctrl(os.path.join(wpas_ctrl,
+                                                          self.group_ifname))
+            else:
+                port = self.get_ctrl_iface_port(self.group_ifname)
+                self.gctrl_mon = wpaspy.Ctrl(self.hostname, port)
             self.gctrl_mon.attach()
         except:
             logger.debug("Could not open monitor socket for group interface")
@@ -755,7 +777,7 @@ class WpaSupplicant:
             while True:
                 while self.gctrl_mon.pending():
                     ev = self.gctrl_mon.recv()
-                    logger.debug(self.group_ifname + ": " + ev)
+                    logger.debug(self.group_dbg + "(group): " + ev)
                     for event in events:
                         if event in ev:
                             return ev