[PATCH 09/20] Task: add DeviceAPI as extension of Machine device database

[Ondrej Lichtner]

From: Ondrej Lichtner

The DeviceAPI exports the Device objects stored in the device database
of a machine to the python task. For now it only implements get methods
for Device information received from the Slave, and the set_mtu method.

The implemented methods are compatible with relevant InterfaceAPI
methods.

This patch also adds an optional 'selector' argument to the get_ip and
get_ips methods of InterfaceAPI, this argument is not used and is here
only so that these methods are compatible with DeviceAPI methods.

Signed-off-by: Ondrej Lichtner 
---
 lnst/Controller/Task.py | 58 +++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 56 insertions(+), 2 deletions(-)

diff --git a/lnst/Controller/Task.py b/lnst/Controller/Task.py
index a064086..50523a7 100644
--- a/lnst/Controller/Task.py
+++ b/lnst/Controller/Task.py
@@ -304,6 +304,13 @@ class HostAPI(object):
     def get_interface(self, if_id):
         return self._ifaces[if_id]

+    def get_device(self, name):
+        dev = self._m.dev_db_get_name(name)
+        if dev:
+            return DeviceAPI(self._m.dev_db_get_name(name), self)
+        else:
+            raise TaskError("No device with name '%s' found." % str(name))
+
     @deprecated
     def get_devname(self, if_id):
         """
@@ -476,6 +483,53 @@ class HostAPI(object):

return self._add_iface("vxlan", if_id, netns, ip, options, slaves)

+class DeviceAPI(object):
+    def __init__(self, net_device, host):
+        self._dev = net_device
+        self._host = host
+
+    def get_if_index(self):
+        return self._dev.get_if_index()
+
+    def get_hwaddr(self):
+        return self._dev.get_hwaddr()
+
+    def get_devname(self):
+        return self._dev.get_name()
+
+    def get_ips(self, selector={}):
+        return self._dev.get_ip_addrs(selector)
+
+    def get_ip(self, num, selector={}):
+        return self._dev.get_ip_addr(num, selector)
+
+    def get_ifi_type(self):
+        return self._dev.get_ifi_type()
+
+    def get_state(self):
+        return self._dev.get_state()
+
+    # def get_master(self):
+        # return self._dev.get_master()
+
+    def get_slaves(self):
+        return self._dev.get_slaves()
+
+    def get_netns(self):
+        return self._dev.get_netns()
+
+    # def get_peer(self):
+        # return self._dev.get_peer()
+
+    def get_mtu(self):
+        return self._dev.get_mtu()
+
+    def set_mtu(self, mtu):
+        return self._dev.set_mtu(mtu)
+
+    def get_driver(self):
+        return self._dev.get_driver()
+
 class InterfaceAPI(object):
     def __init__(self, interface, host):
         self._if = interface
@@ -499,10 +553,10 @@ class InterfaceAPI(object):
     def get_hwaddr(self):
         return VolatileValue(self._if.get_hwaddr)

-    def get_ip(self, ip_index=0):
+    def get_ip(self, ip_index=0, selector={}):
         return VolatileValue(self._if.get_address, ip_index)

-    def get_ips(self):
+    def get_ips(self, selector={}):
         return VolatileValue(self._if.get_addresses)

@deprecated