[lnst] NetTestController: fix for configuration saving

[Jiří Pírko]

commit 66f1b0d69323e0b53e8eca2a0cd0cbe58221b28e
Author: Ondrej Lichtner 
Date:   Fri Oct 4 16:14:58 2013 +0200

NetTestController: fix for configuration saving

We should only save information about dynamically created devices into
    the file used for deconfiguration of previous config_only runs.

Signed-off-by: Ondrej Lichtner 
    Signed-off-by: Jiri Pirko

lnst/Controller/NetTestController.py |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)
---
diff --git a/lnst/Controller/NetTestController.py b/lnst/Controller/NetTestController.py
index e55c36d..d0a53ae 100644
--- a/lnst/Controller/NetTestController.py
+++ b/lnst/Controller/NetTestController.py
@@ -29,7 +29,7 @@ from lnst.Common.NetTestCommand import NetTestCommandContext, NetTestCommand
 from lnst.Common.NetTestCommand import str_command, CommandException
 from lnst.Controller.RecipeParser import RecipeParser, RecipeError
 from lnst.Controller.SlavePool import SlavePool
-from lnst.Controller.Machine import Machine, MachineError
+from lnst.Controller.Machine import Machine, MachineError, VirtualInterface
 from lnst.Common.ConnectionHandler import send_data, recv_data
 from lnst.Common.ConnectionHandler import ConnectionHandler
 from lnst.Common.Config import lnst_config
@@ -426,9 +426,10 @@ class NetTestController:
             machine["interfaces"] = []

for i in m._interfaces:
-                hwaddr = i.get_orig_hwaddr()
+                if isinstance(i, VirtualInterface):
+                    hwaddr = i.get_orig_hwaddr()

-                machine["interfaces"].append(hwaddr)
+                    machine["interfaces"].append(hwaddr)

config_data["bridges"] = bridges = []
         for bridge in self._network_bridges.itervalues():