[PATCH lnst 02/13] Support dummy devices

[Petr Machata]

Signed-off-by: Petr Machata <petrm(a)mellanox.com&gt;
Reviewed-by: Yotam Gigi <yotamg(a)mellanox.com&gt;
---
 lnst/Controller/Task.py       |  3 +++
 lnst/Slave/NetConfigDevice.py | 14 +++++++++++++-
 schema-recipe.rng             |  8 ++++++++
 3 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/lnst/Controller/Task.py b/lnst/Controller/Task.py
index a5fb0d3..1b18779 100644
--- a/lnst/Controller/Task.py
+++ b/lnst/Controller/Task.py
@@ -495,6 +495,9 @@ class HostAPI(object):
 
         return self._add_iface("vxlan", if_id, netns, ip, options, slaves)
 
+    def create_dummy(self, if_id=None, netns=None, ip=None):
+        return self._add_iface("dummy", if_id, netns, ip, {}, [])
+
     def enable_service(self, service):
         return self._m.enable_service(service)
 
diff --git a/lnst/Slave/NetConfigDevice.py b/lnst/Slave/NetConfigDevice.py
index cadce06..e47d80a 100644
--- a/lnst/Slave/NetConfigDevice.py
+++ b/lnst/Slave/NetConfigDevice.py
@@ -249,6 +249,17 @@ class NetConfigDeviceBridge(NetConfigDeviceGeneric):
         self._dev_config["slaves"].remove(slave_id)
         self._add_rm_port("del", slave_id)
 
+class NetConfigDeviceDummy(NetConfigDeviceGeneric):
+    _modulename = ""
+
+    def create(self):
+        dev_name = self._dev_config["name"]
+        exec_cmd("ip link add %s type dummy" % dev_name)
+
+    def destroy(self):
+        dev_name = self._dev_config["name"]
+        exec_cmd("ip link del %s" % dev_name)
+
 class NetConfigDeviceMacvlan(NetConfigDeviceGeneric):
     _modulename = "macvlan"
 
@@ -774,7 +785,8 @@ type_class_mapping = {
     "vti": NetConfigDeviceVti,
     "vti6": NetConfigDeviceVti6,
     "lo": NetConfigDeviceLoopback,
-    "vxlan": NetConfigDeviceVxlan
+    "vxlan": NetConfigDeviceVxlan,
+    "dummy": NetConfigDeviceDummy,
 }
 
 def NetConfigDevice(dev_config, if_manager):
diff --git a/schema-recipe.rng b/schema-recipe.rng
index 1a40a02..1e845bf 100644
--- a/schema-recipe.rng
+++ b/schema-recipe.rng
@@ -140,6 +140,7 @@
                             <ref name="vti6"/>
                             <ref name="lo"/>
                             <ref name="vxlan"/>
+                            <ref name="dummy"/>
                         </choice>
                     </zeroOrMore>
                 </element>
@@ -353,6 +354,13 @@
         </element>
     </define>
 
+    <define name="dummy">
+        <element name="dummy">
+            <attribute name="id"/>
+            <ref name="softdevice"/>
+        </element>
+    </define>
+
     <define name="softdevice">
         <optional>
             <attribute name="netns"/>
-- 
2.4.11