added net client get ifindex and mac functions

daemon/core/nodes/base.py

@@ -678,16 +678,9 @@ class CoreNode(CoreNodeBase):
             veth.name = ifname
 
             if self.up:
-                # TODO: potentially find better way to query interface ID
+                flow_id = self.node_net_client.get_ifindex(veth.name)
-                # retrieve interface information
+                veth.flow_id = int(flow_id)
-                output = self.node_net_client.device_show(veth.name)
+                logging.info("interface flow index: %s - %s", veth.name, veth.flow_id)
-                logging.debug("interface command output: %s", output)
-                output = output.split("\n")
-                veth.flow_id = int(output[0].strip().split(":")[0]) + 1
-                logging.debug("interface flow index: %s - %s", veth.name, veth.flow_id)
-                # TODO: mimic packed hwaddr
-                # veth.hwaddr = MacAddress.from_string(output[1].strip().split()[1])
-                logging.debug("interface mac: %s - %s", veth.name, veth.hwaddr)
 
             try:
                 # add network interface to the node. If unsuccessful, destroy the

daemon/core/nodes/netclient.py

@@ -91,6 +91,26 @@ class LinuxNetClient(object):
         """
         return self.run(f"{IP_BIN} link show {device}")
 
+    def get_mac(self, device):
+        """
+        Retrieve MAC address for a given device.
+
+        :param str device: device to get mac for
+        :return: MAC address
+        :rtype: str
+        """
+        return self.run(f"cat /sys/class/net/{device}/address")
+
+    def get_ifindex(self, device):
+        """
+        Retrieve ifindex for a given device.
+
+        :param str device: device to get ifindex for
+        :return: ifindex
+        :rtype: str
+        """
+        return self.run(f"cat /sys/class/net/{device}/ifindex")
+
     def device_ns(self, device, namespace):
         """
         Set netns for a device.